WO2015035759A1

WO2015035759A1 - Remote radio head unit, cavity filter, and coaxial connector assembly

Info

Publication number: WO2015035759A1
Application number: PCT/CN2014/073485
Authority: WO
Inventors: 张飞; 刘爱平
Original assignee: 深圳市大富科技股份有限公司
Priority date: 2013-09-10
Filing date: 2014-03-14
Publication date: 2015-03-19
Also published as: WO2015035760A1; WO2015035553A1

Abstract

A remote radio head unit, cavity filter, and coaxial connector assembly. The coaxial connector assembly comprises an adapter, and a first electrical connector and a second electrical connector, which are electrically connected to the two ends of the adapter; said first electrical connector has a first inner conductor (12), the second electrical connector has a second inner conductor (72), the adapter has a third inner conductor (33), the end of said first inner conductor (12) is provided with a first clamping part (14), the end of said second inner conductor (72) is provided with a second clamping member, the end of one end of said third inner conductor (33) is provided with a needle-shaped body, and the end of the other end is provided with a spherical body. In an assembled state, the two ends of said adapter are inserted into said first clamping member (14) and second clamping member, respectively; said first clamping member (14) flexibly holds the needle-shaped body at one end of said third inner conductor (33), and the second clamping member flexibly holds the spherical body of said third inner conductor (33), such that said first electrical connector and second electrical connector can move in the axial direction and the radial direction, relative to said adapter. The coaxial connector assembly makes good contact and is easy to swap.

Description

RF remote unit, cavity filter and coaxial connector assembly

【技术领域】[Technical Field]

The present application relates to the field of connector technologies, and in particular, to a coaxial connector assembly, a cavity filter using the coaxial connector assembly, and a radio remote unit using the cavity filter.

【背景技术】【Background technique】

In the prior art, the circuit board and the circuit board are generally electrically connected through a coaxial connector assembly.

Referring to FIG. 1, the coaxial connector assembly of the prior art patent number CN201080062190.x shown in FIG. 1 is required to be in the second in order to achieve a stable connection between the first inner conductor 5 and the second inner conductor 14. The inner conductor 14 is provided with a spring tongue 18 having a first contact bead 20 at its end, and the spring tongue 18 is functionally separated from each other by the slit 22 and bounces in the radial direction to ensure good contact performance.

It is not difficult to understand that the spring tongue of the second inner conductor 14 is easily damaged by the collision and squeezing of the first inner conductor 5 during installation and use, and thus easily causes contact failure and the like. In addition, due to the arrangement of the spring tongue, it is easy to cause difficulty in plugging and unplugging the electrical connectors.

【发明内容】 [Summary of the Invention]

The present application mainly solves the technical problem that the second inner conductor of the prior art adapter is easily damaged by the collision and squeezing of the first inner conductor during the installation and use, and thus the contact defect is easily caused, and the embodiment of the present application provides a radio frequency remote The unit, the cavity filter and the coaxial connector assembly can effectively ensure the structural strength of the second inner conductor and ensure good contact performance, and the electrical connectors are easily inserted and removed.

In order to solve the above technical problem, a first aspect of the present application provides a coaxial connector assembly including an adapter, and a first electrical connector and a second electrical connector respectively electrically connected to the two ends of the adapter, the first electrical connection The first inner conductor, the second inner connector has a second inner conductor, and the adapter has a third inner conductor: the end of the first inner conductor is provided with a first clamping member and the second inner conductor The end of the third inner conductor is provided with a needle-shaped body, and the end of the other end is provided with a spherical body; in the assembled state, the two ends of the adapter are respectively inserted The first clamping member and the second clamping member, the first clamping member elastically clamps the needle-shaped body at one end of the third inner conductor, and the second clamping member elastically clamps the third inner conductor The spheroid at the other end allows the first electrical connector and the second electrical connector to move axially and radially relative to the adapter.

Wherein the first electrical connector has a first outer conductor on an outer circumference of the first inner conductor, the second electrical connector has a second outer conductor on an outer circumference of the second inner conductor, and the adapter has a periphery on the outer circumference of the third inner conductor a third outer conductor, a center of the first outer conductor and the second outer conductor is provided with a through hole for receiving the third outer conductor, and a circumference of the end of the third outer conductor is provided with a ring protrusion The protrusions are axially slidable relative to the inner wall of the through hole. The coaxial connector assembly according to any one of claims 1 to 3, wherein the ends of the first inner conductor and the second inner conductor are respectively provided with axial blind holes, and the first clamping member The second clamping member is inserted into the blind hole.

The first clamping member and the second clamping member are thin-walled members in a cylindrical shape, and a portion of the thin-walled member adjacent to the opening of the blind hole is a clamping portion, and the clamping portion is Part of the cylinder diameter gradually increases toward the blind hole opening direction.

Wherein the portion of the tubular body of the thin-walled member near the bottom of the blind hole is an engaging portion, and the diameter of the cylindrical portion of the engaging portion is gradually reduced toward the opening of the blind hole, and the end of the third inner conductor is The diameter of the spherical body is larger than the small diameter end of the cylindrical body engaging portion, and in the assembled state, the inner wall of the engaging portion of the engaging portion is engaged with the spherical body.

Wherein, the engaging portion and the clamping portion are provided with at least two slots extending in the axial direction.

Wherein, the first clamping member and the second clamping member are thin-walled members in a cylindrical shape, the first clamping member comprises a clamping portion, and the outer wall of the clamping portion is stepped, and the outer diameter is larger than The enlarged diameter region and the outer diameter of the blind hole are smaller than the diameter contraction region of the blind hole, and the clamping portion is provided with a slit extending in the axial direction to at least the diameter enlarged region.

Wherein, the first clamping member and the second clamping member further comprise a limiting portion connected to the diameter contraction region side of the clamping portion, the outer diameter of the limiting portion being larger than the outer diameter of the enlarged diameter region, In the assembled state, the clamping portion is disposed in the blind hole, and a stepped surface between the limiting portion and the diameter contracting region abuts an end surface of the blind hole.

Wherein, the interface between the diameter contraction area and the diameter expansion area of the clamping portion is provided with an engaging portion, the inner wall of the engaging portion is gradually reduced in diameter toward the opening direction of the blind hole, and the spheroid of the third inner conductor end portion The diameter is larger than the small diameter end of the engaging portion, and in the assembled state, the inner wall of the engaging portion of the engaging portion is engaged with the spherical body.

Wherein the ends of the first inner conductor and the second inner conductor are respectively provided with blind holes, the blind hole wall is provided with a slit extending in the axial direction, the first clamping part and the second clamping The pieces are respectively the wall of the hole of the blind hole.

Wherein, the slit extends through the open end surface of the blind hole, and the outer wall of the blind hole is sleeved with a sleeve member that is interference-fitted with the outer wall of the blind hole.

Wherein, the inner hole of the sleeve member is a stepped hole, and in the assembled state, the step surface of the inner hole of the sleeve member abuts the open end surface of the blind hole, and the sleeve member is away from the open end surface of the blind hole One end is fixedly coupled to the first inner conductor.

In order to solve the above technical problem, a second aspect of the present application provides a cavity filter including a PCB circuit board, and a coaxial connector assembly connected to the PCB circuit board, the coaxial connector assembly including a cylindrical adapter And a first electrical connector electrically connected to one end of the adapter, the first electrical connector having a first inner conductor, the adapter having a second inner conductor, the end of the first inner conductor being provided with a clamp The end of one end of the second inner conductor is a needle-shaped body and the end of the other end is provided with a spherical body. In the assembled state of the first electrical connector and the adapter, the second inner conductor is needle-shaped. An end of the body or the spheroid is inserted into the clamping member, the clamping member elastically clamps the second inner conductor, and the first inner conductor and the second inner conductor are movably connected such that the first The electrical connector and the adapter are movable relative to one another in the axial and radial directions.

Wherein the first electrical connector has a first outer conductor on an outer circumference of the first inner conductor, the second electrical connector has a second outer conductor on an outer circumference of the second inner conductor, and the adapter has a periphery on the outer circumference of the third inner conductor a third outer conductor, a center of the first outer conductor and the second outer conductor is provided with a through hole for receiving the third outer conductor, and a circumference of the end of the third outer conductor is provided with a ring protrusion The protrusions are axially slidable relative to the inner wall of the through hole.

To solve the above technical problem, the third aspect of the present application provides a radio remote unit, including an intermediate frequency module, a transceiver module, a power amplifier, and a filtering module, where the filtering module includes a cavity filter, and the cavity filter includes a PCB circuit board, and a coaxial connector assembly coupled to the PCB circuit board, the coaxial connector assembly including a cylindrical adapter and a first electrical connector electrically coupled to one end of the adapter, the first electrical The connector has a first inner conductor, the adapter has a second inner conductor, the end of the first inner conductor is provided with a clamping member, and the end of one end of the second inner conductor is provided as a needle and the other end The end portion is provided with a spherical body, and the second inner conductor is inserted into the clamping member at the end of the needle-shaped body or the spherical body in the assembled state of the first electrical connector and the adapter, and the clamping member is elastic The second inner conductor is clamped, the first inner conductor and the second inner conductor being movably coupled such that the first electrical connector and the adapter are movable relative to one another in the axial and radial directions.

The present application achieves an elastic clamping fit with the second inner conductor and the first inner conductor by means of two clamping members by providing two clamping members on the third inner conductor. At the same time, since the end of the first inner conductor is provided with a needle-shaped body, the end of the second inner conductor is provided with a spherical body, so that the first electrical connector is more easily inserted and removed with respect to the second electrical connector.

【附图说明】 [Description of the Drawings]

1 is a schematic structural view of a prior art coaxial connector assembly;

2 is a schematic view showing the installation process of an embodiment of the coaxial connector assembly of the present application;

3 is a schematic view showing the manner of fitting the coaxial connector assembly shown in FIG. 2 after assembly;

4 is a schematic structural view of an embodiment of an electrical connector of the coaxial connector assembly shown in FIG. 2;

Figure 5 is a schematic structural view of an embodiment of the clamping member of the electrical connector shown in Figure 4;

6 is a schematic structural view of an embodiment of an inner conductor of the electrical connector shown in FIG. 4;

7 is a schematic structural view of another embodiment of the electrical connector of the present application;

Figure 8 is a schematic view showing the structure of an inner conductor and a clamping member of the electrical connector shown in Figure 7;

Figure 9 is a schematic structural view of an embodiment of the sleeve member of the electrical connector shown in Figure 7;

10 is a schematic structural view of an embodiment of an inner conductor and a clamping member of a coaxial connector assembly or an electrical connector of the present application;

Figure 11 is a schematic view showing the structure of another embodiment of the inner conductor and the clamping member of the coaxial connector assembly or the electrical connector of the present application.

【具体实施方式】【detailed description】

In the following description, for purposes of illustration and description However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the application.

2 and FIG. 3, FIG. 2 is a schematic diagram of a mounting process of an embodiment of the coaxial connector assembly of the present application, and FIG. 3 is a schematic view of the cooperation mode of the coaxial connector assembly shown in FIG. The coaxial connector assembly includes an adapter and a first electrical connector and a second electrical connector that are electrically coupled to the two ends of the adapter, respectively.

Specifically, the first electrical connector of the coaxial connector assembly of the present embodiment has a first outer conductor 11, a first inner conductor 12, an insulating medium 13, and a first clamping member 14 having elasticity.

In the present embodiment, the first outer conductor 11 and the first inner conductor 12 may be made of a conductive material such as copper (such as brass) and processed by a turning process or the like. The electrical connector may be fixed to a product such as a circuit board by an externally threaded structure provided on an outer circumference of one end of the first outer conductor 11, and the first outer conductor 11 has a port at one end and a cable such as a circuit board or the like. The wire can be stably connected by welding or the like. It is not difficult to see that the electrical connector of the embodiment is fixed and fixed by means of an externally threaded structure, which is convenient for disassembly and facilitates inspection and the like.

The insulating medium 13 is disposed between the inner wall of the first outer conductor 11 and the outer wall of the first inner conductor 12. Specifically, the insulating medium 13 may be partially or entirely disposed on the outer circumference of the first inner conductor 12. It should be noted that the insulating medium 13 of the present embodiment can be made by using a material such as polyetheretherketone (PEEK) and/or polytetrafluoroethylene (PTFE) and processed by a turning process to make the insulating medium 13 excellent. Heat and abrasion resistance.

The first clamping member 14 is electrically connected to the first inner conductor 12 and the first clamping member 14 is disposed at the end of the first inner conductor 12. The first clamping member 14 is provided with the receiving socket 140 and the receiving socket 140. The hole wall is provided with a slit 141 which is parallel to the axial direction of the first inner conductor 12. The slit 141 may be two, three, four or more strips, which may be a rectangular manner parallel to the axial direction of the first inner conductor 12, or may be a triangle or other irregular pattern. Not limited. Further, in order to simplify the process flow and reduce the production cost, the present embodiment can form two slits 141 (i.e., the number of the slits 141 is an even number) by one grooving process.

It should be noted that, referring to FIG. 5, in order to provide a better elastic clamping force for the hole wall of the socket 140, the slot 141 of the embodiment preferably penetrates in the radial direction of the first clamping member 14. The hole wall of the jack 140 is disposed; in addition, the slot 141 may not penetrate the end faces of the hole wall of the jack 140 in the axial direction of the first clamping member 14, or only one of the hole walls of the jack 140 The arrangement of the end faces is not limited herein.

It should be emphasized that the first inner conductor 12 and the first clamping member 14 of the present application may be integrally formed (ie, integrally formed), or may be separately provided (ie, processed separately as two separate components), This is not limited. In this embodiment, the first inner conductor 12 and the first clamping member 14 are disposed in a separate manner. The first inner conductor 12 of the embodiment is provided with a blind hole 120, and the first clamping member 14 is disposed at Inside the blind hole 120.

In order to solve the technical problem of high production cost and poor structural strength of the coaxial connector assembly shown in FIG. 1, referring to FIG. 4, the first outer conductor 11 of the present embodiment includes a first cylindrical portion 111 and a second portion. The cylindrical portion 112, the first cylindrical portion 111 and the second cylindrical portion 112 are integrally formed. In this embodiment, only the integrally formed first outer conductor 11 is processed, which reduces the processing cost and assembly cost of the first outer conductor 11 and improves the structural strength by means of integral molding.

In the meantime, in order to ensure that the insulating medium 13 is fixed on the first outer conductor 11, the insulating medium 13 may include a first insulating medium 131 and a second insulating medium 132 which are separately disposed, and the first outer conductor 11 The inner hole is stepped, and includes a first shaft hole 1111 having a larger diameter that is interference-fitted with the first insulating medium 131, and a second shaft hole 1121 having a smaller diameter that is interference-fitted with the second insulating medium 132. The outer circumference of the first inner conductor 12 may further have a nip 121, a limiting structure 122 and a positioning portion 123 (as shown in FIG. 6). The first insulating medium 131 abuts on the step surface of the boundary between the first shaft hole 1111 and the second shaft hole 1121 in the axial direction by the nip portion 121 to firmly define the first insulating medium 131 to the first barrel portion 111. An interference fit between the first insulating medium 131 and the first cylindrical portion 111; the second insulating medium 132 is sleeved on the limiting structure 122, and the second insulating medium 132 is disposed on the second cylinder after the installation is completed. An interference fit is formed between the portion 112 and the second tubular portion 112.

It should be noted that the first insulating medium 131 of the present embodiment does not need to provide an extended portion enclosing the first inner conductor 12 with respect to the prior art. Specifically, in order to define the first insulating medium 131, the first shaft hole 1111 is provided with a ring-shaped annular boss 1110 (shown in FIG. 4) near the second shaft hole 1121, and the first insulating medium 131 is located on the inner wall of the annular boss 1110. Between the outer wall of the first inner conductor 12 and the first insulating medium 131 and the annular boss 1110, the amount of use of the first insulating medium 131 is effectively saved, and the production cost is reduced. It is not difficult to see that the embodiment provides a further interference fit between the first insulating medium 131 and the first cylindrical portion 111 by the action of the annular boss 1110, and defines the position of the first insulating medium 131 by the action of the nip portion 121. Therefore, the positioning effect on the first insulating medium 131 is effectively achieved, and the prior art "the first outer conductor (8) needs to be disposed as two connected parts, one of which is used to connect the first spacer (7). The way of pressing and fixing on another part reduces the process flow and saves production costs.

It should be noted that the first insulating medium 131 of the present embodiment is preferably made of polyetheretherketone, and the polyetheretherketone material can be better reduced for the prior art shown in FIG. Use to reduce production costs; in addition, the second insulating medium 132 can be made of a lower cost polytetrafluoroethylene material.

It can be seen from FIG. 6 that the side of the limiting structure 122 away from the positioning portion 123 is inclined. When assembled, the second insulating medium 132 is nested from the inclined side of the limiting structure 122 until it abuts the positioning portion 123, and then is positioned. The limiting action of the portion 123 and the interference fit of the limiting structure 122 cause a tight fit between the second insulating medium 132 and the first inner conductor 12; specifically, the tilting of the second insulating medium 132 from the limiting structure 122 The frictional resistance received during the side nesting is small, and the frictional resistance on the other side of the limiting structure 122 is large during the reverse exiting, so that the second insulating medium 132 and the first inner conductor are well prevented. 12 relative sliding between. It is easy to understand that the present embodiment uses the combination of the first outer conductor 11 and the first inner conductor 12 to indirectly achieve the fixing of the second insulating medium 132, thereby ensuring the structural strength of the first outer conductor 11 and reducing the processing thereof. Cost and ease of assembly operations.

The second electrical connector of the coaxial connector assembly of the present embodiment has a second outer conductor 71, a second inner conductor 72, another insulating medium 73, and a second clamping member (not labeled) having elasticity.

The second outer conductor 71, the second inner conductor 72, the other insulating medium 73, and the second clamping member having elasticity and the specific structure thereof are referred to the related description of the first electrical connector, and are easily combined by those skilled in the art. In the scope of understanding, we will not repeat them.

In the present embodiment, the adapter may be cylindrical, and is provided with a third outer conductor 31, an insulating layer 32, and a third inner conductor 33.

The third outer conductor 31 is for connecting the first outer conductor 11 of the first electrical connector and the second electrical connector. It should be noted that the present embodiment is disposed in the axial direction of the inner side wall of the first outer conductor 11 of one of the electrical connectors, and correspondingly, the end of the third outer conductor 31 mating with the inner side wall of the first outer conductor 11 There is a protrusion (not shown) thereon, and after the assembly is completed, the fixing of the inner side wall of the first outer conductor 11 and the third outer conductor 31 can be achieved by elastically pressing the smooth inner side wall by the protrusion; When the connection of the first electrical connector to the adapter is opened, only the first inner conductor 12 and the third inner conductor 33 are disengaged, and the first electrical connector can be easily unplugged by a certain force. Similarly, the inner side wall of the other outer conductor of the second electrical connector mating with the protrusion of the third outer conductor 31 is smoothly disposed in the axial direction, and the end of the third outer conductor 31 is engaged with the inner side wall of the other outer conductor. With the protrusion, the second electrical connector can be easily pulled out with a certain force.

The insulating layer 32 is sleeved in the third outer conductor 31. The insulating layer 32 can be made of an insulating material such as polyetheretherketone or polytetrafluoroethylene and processed by a turning process, and the insulating layer 32 and the third outer conductor 31. A fixed connection can be made by means of an interference fit.

The third inner conductor 33 is sleeved in the insulating layer 32 and can be fixedly connected by means of an interference fit. In this embodiment, in order to solve the problem that the first insulating medium 131 is not provided with the extended portion (shown in FIG. 1) of the first inner conductor 12, the axis between the axis of the first electrical connector and the second electrical connector is not the same. The first clamping member 14 of the present embodiment is a cylindrical thin-walled member including a clamping portion and an engaging portion 145.

Specifically, the outer wall of the clamping portion is stepped, and includes a diameter enlarged region 143 having an outer diameter larger than the blind hole 120 and a diameter contraction region 144 having an outer diameter smaller than the blind hole 120, and the slit extends in the axial direction to at least the through diameter expanding region. 143 settings. The first clamping member 14 further includes a limiting portion 146 connected to the side of the clamping portion diameter contraction region 144. The outer diameter of the limiting portion 146 is larger than the outer diameter of the enlarged diameter region 143. In the assembled state, the clamping portion is placed In the blind hole 120, the stepped surface between the limiting portion 146 and the diameter contracting region 144 abuts the end surface of the blind hole 120.

The engaging portion 145 is disposed at a boundary between the diameter contraction region 144 and the diameter enlarged region 143 of the clamping portion, the inner wall of the engaging portion 145 is gradually reduced in diameter toward the opening direction of the blind hole 120, and the end portion of the third inner conductor 33 is provided with a diameter larger than The spherical body having the small diameter end of the engaging portion 145 is in the assembled state, and the inner wall of the engaging portion 145 is engaged with the spherical body. It is not difficult to see that this embodiment effectively solves the technical problem that the axis between the axis of the first electrical connector and the axis of the second electrical connector cannot be installed and stably connected when the axis is not on the same center line.

It should be noted that the one end end of the third inner conductor 33 and the socket 140 is a spherical body and has an interference fit with the socket 140, and the third inner conductor 33 is matched with the other end of the socket 140. The end portion is set to a needle-like body.

In order to facilitate the disassembly and assembly, the diameter contraction region 144 of the embodiment and the inner wall of the engaging portion 145 may also have a smooth transition (in other embodiments, a bevel), so that when the need to disassemble, the passage is greater than a certain degree. The pulling action of the force of Newton (N), pressing the curved surface between the inner walls of the engaging portion 145, causes the third inner conductor 33 to retreat back to the inner wall of the diameter contraction region 144. The value of the force of the pulling action of the embodiment can be set according to actual needs, and is combined with the material of the first clamping member 14 and the elastic force of the inner wall of the engaging portion 145 to set the shape of the curved surface. The implementation process is within the scope of those skilled in the art and will not be described in detail.

It is not difficult to see that the coaxial connector assembly of the present embodiment can be elastically connected by the third inner conductor 33 pressing the socket 140 having the slot wall 141. This embodiment can be used in conjunction with the socket 140. When rotating, and the axis between the axis of the first electrical connector and the second electrical connector are not on the same center line, the mounting and stabilization can be achieved by the cooperation of the spherical body of the third inner conductor 33 and the engaging portion 145. connection. In addition, since the end of one end of the third inner conductor 33 is a needle-shaped body and the end of the other end is provided with a spherical body, the end portion of the third inner conductor 33 which is a needle-shaped body or a spherical body is inserted into the socket 140. When the first electrical connector and the second electrical connector are to be disconnected, the end portions of the third inner conductor 33 are easily inserted and removed, and the first clamping member 14 can be used to ensure the connection. Stable connection.

In addition, the opening of the first cylindrical portion 111 of the present embodiment away from the second cylindrical portion 112 may be obliquely disposed to guide the third outer conductor 31 of the adapter between the first outer conductor 11 and the first inner conductor 12. Further, it is possible to effectively prevent the third outer conductor 31 from colliding with the opening end face of the first cylindrical portion 111.

It should be noted that the prior art shown in FIG. 1 requires "providing a spring tongue (18) on the third inner conductor (14), having a first contact bead (20) at its end, and the spring tongue (18) passing through the narrow The slits 22 are functionally separated from each other and are springed apart in the radial direction, while the spring tongues of the third inner conductor (14) are easily damaged by the first inner conductor (5) during assembly and use. Further, it is easy to cause contact failure and the like. However, the present application provides a first clamping member 14 that cooperates with the first inner conductor 12, since the wall of the socket of the first clamping member 14 is provided with a hole parallel to the axial direction of the first inner conductor 12. The groove 141, after the third inner conductor 33 is inserted into the socket 140, the wall of the hole of the socket 140 is deformed by force, and the action of the slot 141 provides both elastic clamping force and deformation, and does not need to be The spring tongue, the slit, and the like are provided on the third inner conductor 33, and the structural strength of the third inner conductor 33 is ensured and the contact performance is good.

In summary, in the assembled state of the electrical connector and the adapter, the third inner conductor 33 is inserted into the first clamping member 14, the first clamping member 14 elastically clamps the third inner conductor 33 of the adapter, the first inner conductor 12 and The third inner conductor 33 is movably connected such that the electrical connector and the adapter are movable relative to each other in the axial direction and the radial direction. Further, the present embodiment realizes that the axis between the other electrical connector and the electrical connector is not the same Installation and stable connection on the centerline.

In addition, the electrical connector of the embodiment electrically connected to the other end of the adapter may similarly have a third inner conductor (refer to the aforementioned first inner conductor), and the end of the third inner conductor is provided with another clamping member ( Referring to the aforementioned clamping member, in the assembled state of the other electrical connector and the adapter, the third inner conductor 33 is inserted into the other clamping member, and the other clamping member elastically clamps the third inner conductor 33 of the adapter, the third The inner conductor and the third inner conductor 33 are movably coupled such that the other electrical connector and adapter are movable relative to each other in the axial and radial directions. The present invention does not need to provide a spring tongue and contact beads in the third inner conductor of the adapter, so that collision, crush damage and poor contact during installation and use can be effectively avoided, and the present invention effectively ensures the third inner conductor. The structural strength and good contact performance.

In a preferred embodiment of the present application, in order to facilitate the convenient insertion and removal between the first electrical connector and the second electrical connector, the end of one end of the third inner conductor 33 is provided with a needle-shaped body, and the end of the other end is provided. There is a spherical body. In the assembled state, the two ends of the adapter are respectively inserted into the first clamping member 14 and the second clamping member, and the first clamping member 14 elastically clamps the needle-shaped body (or spherical shape) at one end of the third inner conductor 33. The second clamping member elastically clamps the spherical body (or the needle-like body) at the other end of the third inner conductor 33 such that the first electrical connector and the second electrical connector can be axially aligned with respect to the adapter. And move in the radial direction.

Further, in the present embodiment, the first outer conductor 11 located on the outer circumference of the first inner conductor 12, the second outer conductor 71 located on the outer circumference of the second inner conductor, and the third outer conductor located on the outer circumference of the third inner conductor 33 31. The center of the first outer conductor 11 and the second outer conductor 71 is opened with a through hole for receiving the third outer conductor 31. The outer circumference of the end portions of the third outer conductor 31 is provided with a ring protrusion (not shown), and the protrusions are opposite to each other. The inner wall of the through hole slides axially.

The end of the first inner conductor 12 of the present application is provided with a needle-shaped body, and the end of the second inner conductor 72 is provided with a spherical body, so that the first electrical connector is more easily inserted and removed with respect to the second electrical connector.

It should be noted that the electrical connector according to one or more of the following embodiments may be the first electrical connector or the second electrical connector of the previous embodiment, and the first electrical connector and the first electrical connector are used in this embodiment. The related component numbers are described, and it should be understood that they can be applied to the second electrical connector, and will not be described in the scope of those skilled in the art. In addition, the first clamping member described below can also be understood as the first clamping member and the second clamping member, such as the structure and the connection manner are the same, and will not be described herein.

Referring to FIG. 4 to FIG. 6 , the present application further provides an electrical connector. The electrical connector of the embodiment includes an outer conductor 11 , an inner conductor 12 , an insulating medium 13 , and a first clamping member 14 . Electrical connectors can be used in coaxial connector assemblies, particularly in coaxial connector assemblies for circuit boards and circuit boards (BTBs).

In the present embodiment, the outer conductor 11 may be made of a conductive material such as copper (such as brass) and processed by a turning process or the like. The electrical connector can be fixed to a product such as a circuit board by an externally threaded structure provided on the outer circumference of one end of the outer conductor 11, and the port of the one end of the outer conductor 11 and the outer conductor of a cable such as the circuit board can be soldered or the like. The method realizes a stable electrical connection. It is not difficult to see that the electrical connector of the embodiment is mounted and fixed by means of an externally threaded structure, which is convenient for disassembly and facilitates inspection and the like. In addition, the outer circumference of the other end of the outer conductor 11 has an outer hexagonal structure to make the points of the outer conductor 11 more uniform in force, and can be used for rotat mounting or dismounting with one end having an externally threaded structure. Practical.

The inner conductor 12 of the present embodiment can be made of a conductive material such as copper (such as brass) and processed by a turning process or the like. The outer conductor 11 is sleeved outside the inner conductor 12 and the outer conductor 11 and the inner conductor 12 are insulated from each other. As described above, the inner core 12 and the inner core of the cable corresponding to the product such as the circuit board are stabilized by welding or the like. Electrical connection.

The insulating medium 13 is interposed between the inner wall of the outer conductor 11 and the outer wall of the inner conductor 12. Specifically, the insulating medium 13 may be partially or entirely disposed on the outer circumference of the inner conductor 12. It should be noted that the insulating medium 13 of the present embodiment can be made by a material such as polyetheretherketone or polytetrafluoroethylene and processed by a turning process or the like so that the insulating medium 13 has excellent heat and abrasion resistance.

The first clamping member 14 is mated with and electrically connected to the inner conductor 12. In the present embodiment, the first clamping member 14 is disposed separately from the inner conductor 12, and the inner conductor 12 is provided with an axial blind hole 120. The first clamping member 14 is disposed in the blind hole 120.

Preferably, the first clamping member 14 is a cylindrical thin-walled member, and the first clamping member 14 includes a clamping portion, the outer wall of the clamping portion is stepped, and includes an enlarged diameter region 143 having an outer diameter larger than the blind hole 120 and The outer diameter is smaller than the diameter contraction region 144 of the blind hole 120, and the clamping portion is provided with a slit 141 extending in the axial direction to at least the through-diameter enlarged region 143. The first clamping member 14 further includes a limiting portion 146 connected to the side of the diameter portion 144 of the clamping portion. The outer diameter of the limiting portion 146 is larger than the outer diameter of the enlarged diameter region 143. In the assembled state, the clamping portion is disposed. In the blind hole 120, the stepped surface between the limiting portion 146 and the diameter contracting region 144 abuts the end surface of the blind hole 120. The engaging portion 145 is provided at the boundary between the diameter contraction region 144 and the enlarged diameter portion 143 of the clamping portion. The inner wall of the engaging portion 145 is gradually reduced in diameter toward the opening direction of the blind hole 120, and the end portion of the third inner conductor 33 is provided with a diameter larger than The engaging portion 145 has a spherical body at a small diameter end and the end portion at the other end is a needle-shaped body. In the assembled state, the inner wall of the engaging portion 145 is engaged with the spherical body.

In addition, the first clamping member 14 is further provided with a receiving socket 140, and the slit 141 is located at the hole wall of the receiving socket 140 and parallel to the axial direction of the inner conductor 12. It is not difficult to understand that the first clamping member 14 can provide a clamping force for resetting when the hole wall of the socket 140 is subjected to radial tension by providing the socket 140 and the slot 141, thereby realizing the clamping. The role of holding. The slot 141 may be two, three, four or more strips, which may be a rectangular manner parallel to the axial direction of the inner conductor 12, or may be a triangle or other irregular pattern, which is not limited herein. . Further, in order to simplify the process flow and reduce the production cost, the present embodiment can form two slits 141 (i.e., the number of the slits 141 is an even number) by one grooving process.

For example, when the electrical connector is electrically connected to the electrical connector of the coaxial connector assembly of the previous embodiment through the third inner conductor 33 of the adapter to be electrically connected to the socket 140, the needle of the third inner conductor 33 is caused. The ends of the bodies or spheroids press the wall of the hole of the socket 140 and the elastic connection between the first clamping member 14 and the third inner conductor 33 is achieved by the cooperation of the slots 141.

In other embodiments, the inner conductor 12 can be disposed as a solid cylindrical structure, and the first clamping member 14 is sleeved and fixed on the outer circumference of the inner conductor 12 through one end of the receiving socket 140, and correspondingly, the jack is received. The other end of the 140 is used to sleeve the third inner conductor 33 to realize the electrical connection between the inner conductor 12 and the third inner conductor 33, which will not be described in detail herein.

In this embodiment, in order to solve the problem that the first insulating medium 131 is not provided with the extended portion (shown in FIG. 1) of the first inner conductor 12, the axis between the axis of the first electrical connector and the second electrical connector is not the same. The technical problem of the inability to mount and stabilize the connection on the center line, the function of the diameter enlarged area 143, the diameter contraction area 144, and the engaging portion 145 connecting the diameter enlarged area 143 and the diameter contraction area 144 of the present embodiment is not difficult to see. The present embodiment effectively solves the technical problem that the axis between the axis of the first electrical connector and the axis of the second electrical connector cannot be installed and stably connected when the axis is not on the same center line, so that the first electrical connector and the adapter are The axial and vertical movements are movable relative to one another, thereby enabling installation and stable connection of the axis between the first electrical connector and the second electrical connector not on the same centerline.

In order to prevent mutual damage between the first clamping member 14 and the inner conductor 12 due to collision, the present embodiment has a limiting portion 146 on the outer circumference of the diameter contraction region 144, and the limiting portion 146 is flush with the outer circumference of the inner conductor 12. In this way, it is also possible to prevent the third outer conductor 31 of the other electrical connector or adapter from colliding and rubbing the first clamping member 14 to cause wear. Further, the socket 140 is obliquely disposed at the opening of the diameter contraction region 144 to guide the third inner conductor 33 into the socket 140, thereby preventing rigid collision wear of the third inner conductor 33 and the outer circumference of the inner conductor 12.

It is not difficult to see from the structure of the first clamping member 14 shown in Fig. 5. In the assembled state, after the diameter enlarged region 143 is inserted through the opening of the blind hole 120, the diameter enlarged region 143 is pressed by the hole wall of the blind hole 120. The contraction is made, and since the opening of the slit 141 is provided on the enlarged diameter region 143, the plurality of elastic pieces of the enlarged diameter region 143 are contracted toward each other, so that the radius of the end of the engaging portion 145 near the enlarged diameter region 143 is smaller than the diameter. The radius of the constricted area 144 is such that the receiving socket 140 is gradually inclined. In this case, since the engaging portion 145 is located in the enlarged diameter region 143, the space formed by the engaging portion 145 is matched with the hole space of the jack 140. Forming an "Ω"-like self-locking structure; after the limiting portion 146 of the diameter contraction region 144 abuts the end surface of the inner conductor 12, the first clamping member 14 is mounted, and then the spherical body end of the third inner conductor 33 is The insertion hole 140 of the diameter contraction area 144 is inserted into the opening. Since the connection socket 140 is gradually inclined, the end of the spherical body starts to be pressed against the hole wall of the socket 140, so that the force between the pieces of the elastic piece is gradually separated. Until the end of the spheroid enters the enlarged diameter zone 14 The engaging portion 145 of the engaging portion 145 is engaged and engaged, and the tapered slope of the inner side wall of the engaging portion 145 locks the end portion of the spherical body to the engaging portion 145. Inside. It is not difficult to understand that the end of the third inner conductor 33 spheroid can be relatively rotated within the engaging portion 145 by a certain angle, that is, the connection between the end of the third inner conductor spheroid and the engaging portion 145 is similar. In the manner of the joint structure, the third inner conductor 33 and the first clamping member 14 (or the inner conductor 12) can be relatively rotated. In other words, the embodiment can make two not on the same center line. Between the electrical connectors, the connection can still be made through the ends of the spheroids of the third inner conductor 33 of the adapter. In this way, the applicability of the electrical connector of the present embodiment can be effectively improved.

It should be noted that the first outer conductor (8) shown in FIG. 1 needs to be provided with two connected portions, thereby pressing and fixing the insulating medium on the first outer conductor (8), and this method is accompanied by the use time. Growth is also prone to unstable connection conditions, and the assembly and disassembly process of the outer conductor of the electrical connector is increased, resulting in high production costs.

For the case of the prior art, the outer conductor 11 of the present embodiment includes a first cylindrical portion 111 and a second cylindrical portion 112, and the first cylindrical portion 111 and the second cylindrical portion 112 are integrally formed (see FIG. 4). Shown). In this embodiment, only the integrally formed outer conductor 11 is processed, which reduces the processing cost and assembly and disassembly cost of the outer conductor 11. In this embodiment, in order to ensure that the insulating medium 13 is fixed on the outer conductor 11, the insulating medium 13 may include a first insulating medium 131 and a second insulating medium 132 which are separately disposed, and the inner hole of the outer conductor 11 is stepped, including a first shaft hole 1111 having a larger diameter that is interference-fitted with the first insulating medium 131, and a second shaft hole 1121 having a smaller diameter that is interference-fitted with the second insulating medium 132, and the outer circumference of the inner conductor 12 It may have a nip 121, a limiting structure 122, and a positioning portion 123. The first insulating medium 131 abuts on the step surface of the boundary between the first shaft hole 1111 and the second shaft hole 1121 in the axial direction by the nip portion 121 to firmly define the first insulating medium 131 to the first barrel portion 111. An interference fit between the first insulating medium 131 and the first cylindrical portion 111; the second insulating medium 132 is sleeved on the limiting structure 122, and the second insulating medium 132 is disposed on the second cylinder after the installation is completed. An interference fit is formed between the portion 112 and the second tubular portion 112.

It can be seen from FIG. 6 that the side of the limiting structure 122 away from the positioning portion 123 is inclined. When assembled, the second insulating medium 132 is nested from the inclined side of the limiting structure 122 until it abuts the positioning portion 123, and then is positioned. The limiting action of the portion 123 and the interference fit of the limiting structure 122 cause a tight fit between the second insulating medium 132 and the inner conductor 12; specifically, the inclined insulating side of the second insulating medium 132 from the limiting structure 122 The frictional resistance received during the process is small, and the frictional resistance on the other side of the stopper structure 122 is large during the reverse exit, so that the relative relationship between the second insulating medium 132 and the inner conductor 12 is well prevented. slide. It is easy to understand that the present embodiment uses the combination of the outer conductor 11 and the inner conductor 12 to indirectly achieve the fixing of the second insulating medium 132, which not only ensures the structural strength of the outer conductor 11, reduces the processing cost, and facilitates the assembly operation. .

Similarly, in order to define the first insulating medium 131, the first shaft hole 1111 is provided with a ring-shaped annular boss 1110 near the second shaft hole 1121. The first insulating medium 131 is sandwiched between the inner wall of the annular boss 1110 and the inner conductor 12. The first insulating medium 131 is equal to the annular boss 1110 between the outer walls. It is not difficult to see that the embodiment provides a further interference fit between the first insulating medium 131 and the first cylindrical portion 111 by the action of the annular boss 1110, and defines the position of the first insulating medium 131 by the action of the nip portion 121. Therefore, the positioning effect on the first insulating medium 131 is effectively achieved. This embodiment does not need to adopt the prior art "the first outer conductor (8) needs to be arranged as two parts connected, one part of which is used to press the first pad (7) to be fixed on the other part", which reduces Process and save on production costs.

It should be noted that the first insulating medium 131 of the present embodiment is preferably made of polyetheretherketone, and the polyetheretherketone material can be better reduced for the prior art shown in FIG. The use of the second insulating medium 132 can be made of a lower cost polytetrafluoroethylene material.

In addition, the first cylindrical portion 111 of the present embodiment is disposed obliquely away from the opening of the second cylindrical portion 112 to guide the needle-like body or the spherical body end of the third outer conductor 31 of the adapter into the outer conductor 11 and the inner conductor. Between 12, it is possible to effectively prevent the third outer conductor 31 from colliding rigidly with the opening of the first cylindrical portion 111.

Please refer to FIG. 7. FIG. 7 is a schematic structural diagram of another embodiment of the electrical connector of the present application.

The electrical connector of the present embodiment includes an outer conductor 21, an inner conductor 22, an insulating medium 23, and a clamping member 24. The electrical connector of the present embodiment can be used in a coaxial connector assembly, such as FIG. 2 and FIG. The coaxial connector assembly shown, in particular, can be used in a coaxial connector assembly of a circuit board and a circuit board.

The outer conductor 21 can be made of a conductive material such as copper (such as brass) and processed by a turning process or the like. The electrical connector can be fixed to a product such as a circuit board by an externally threaded structure provided on the outer circumference of one end of the outer conductor 21, and the outer conductor of the outer conductor 21 and the outer conductor of the cable such as the circuit board can be soldered or the like. The method realizes a stable electrical connection. It is not difficult to see that the electrical connector of the embodiment is mounted and fixed by means of an externally threaded structure, which is convenient for disassembly and facilitates inspection and the like. In addition, the outer circumference of the other end of the outer conductor 21 has an outer hexagonal structure to make the points of the outer conductor 21 more uniform in use, and can be used for rotat mounting or dismounting with one end having an externally threaded structure. Practical.

The inner conductor 22 can be made of a conductive material such as copper (such as brass) and processed by a turning process or the like. The outer conductor 21 is sleeved outside the inner conductor 22 and the outer conductor 21 and the inner conductor 22 are insulated from each other. The inner conductor 22 and the inner core of the cable corresponding to the product such as the circuit board are firmly connected by welding or the like.

The insulating medium 23 is interposed between the outer conductor 21 and the inner conductor 22. Specifically, the insulating medium 23 may be partially or entirely disposed on the outer circumference of the inner conductor 22. It should be noted that the insulating medium 23 of the present embodiment can be made by using a material such as polyetheretherketone and/or polytetrafluoroethylene and by a turning process or the like.

The clamping member 24 is provided at the end of the inner conductor 22 and is electrically connected. It should be noted that the present embodiment is different from the previous embodiment in that the clamping member 24 is integrally formed with the inner conductor 22, and the inner conductor 22 is provided with a blind hole 220 at its end, and the blind hole 220 is provided with an axial extension. The slot 241, the clamping member 24 is the wall of the blind hole 220.

It should be noted that in order to provide a better elastic clamping force for the hole wall of the blind hole 220, the slit 241 of the present embodiment is preferably disposed through the hole wall of the blind hole 220 in the radial direction of the clamping member 24; The slit 241 may be disposed through the open end surface of the blind hole 220 in the axial direction of the clamping member 24.

It is easily understood that the blind hole 220 is inserted between the electrical connector and the other electrical connector of the coaxial connector assembly through the needle-like or spherical end of the third inner conductor 33 (see FIG. 2). When the electrical connection is made, the third inner conductor 33 is pressed against the hole wall (clamping member 24) of the blind hole 220 and the elastic connection between the clamp member 24 and the third inner conductor 33 is achieved by the engagement of the slit 241. It is not difficult to see that in the assembled state, the electrical connector of the present embodiment and the adapter shown in the previous embodiment are inserted into the clamping member 24, and the clamping member 24 elastically clamps the third inner conductor 33 of the adapter. The conductor 22 and the third inner conductor 33 are movably coupled such that the electrical connector and the adapter are movable relative to each other in the axial and radial directions.

Referring to FIGS. 8 and 9 in conjunction with FIG. 7, the clamping member 24 of the present embodiment is integrally formed with the inner conductor 22 and the clamping member 24 is located at the end of the inner conductor 22 for connecting the third inner conductor 33.

It should be noted that since the clamping member 24 is integrally formed with the inner conductor 22 and the opening of the slot 241 of the clamping member 24 is in contact with another electrical connector or adapter, it is easy to cause the outer circumference of the clamping member 24 to eversion or In the case of a collision and deformation, the electrical connector of the present embodiment further includes a sleeve member 25, and the sleeve member 25 is sleeved on the outer wall of the blind hole 220, and the sleeve member 25 is interference-fitted with the outer wall of the blind hole 220. . In other words, the present embodiment protects the clamping member 24 and the inner conductor 22 by means of the sleeve member 25, thereby ensuring that the clamping member 24 and the inner conductor 22 are not damaged or deformed due to the increase in use time and lose elasticity. .

In FIG. 8, the slots 241 are four, and the clamping members 24 are formed by the slots 241 to form four elastic pieces 242. It is not difficult to understand that the present embodiment can reduce the processing precision and difficulty of the slots 241 as much as possible. The ground forms a balance, and a plurality of pieces of shrapnel are clamped together to ensure work performance.

The opening of the blind hole 220 of the embodiment is inclined (ie, funnel-shaped) to guide the third inner conductor 33 into the blind hole 220, thereby effectively preventing the third inner conductor 33 from rigidly colliding with the outer wall of the blind hole 220. .

The outer circumference of the housing 250 of the sleeve member 25 shown in Fig. 9 is smoothly disposed, and the inner hole 251 of the sleeve member 25 is a stepped hole. In the assembled state, the stepped surface of the inner hole 251 of the sleeve member 25 abuts blindly. An end surface of the hole 220 and an end of the sleeve member 25 away from the open end surface of the blind hole 220 are fixedly coupled to the inner conductor 22.

In order to solve the technical problem that the first outer conductor (8) of the coaxial connector assembly shown in FIG. 1 adopts a split arrangement, resulting in high production cost and poor structural strength, the outer conductor 21 of the present embodiment includes the first cylindrical portion. 211 and the second cylindrical portion 212, the first cylindrical portion 211 and the second cylindrical portion 212 are integrally formed (as shown in FIG. 7). In this embodiment, only the integrally formed outer conductor 21 is processed, which reduces the processing cost and assembly cost of the outer conductor 21. In this embodiment, in order to ensure that the insulating medium 23 is fixed on the outer conductor 21, the insulating medium 23 may include a first insulating medium 231 and a second insulating medium 232 disposed separately, and the inner hole of the outer conductor 21 is stepped, including a first shaft hole 2111 having a larger diameter that is interference-fitted with the first insulating medium 231, and a second shaft hole 2122 having a smaller diameter that is interference-fitted with the second insulating medium 232, and the outer circumference of the inner conductor 22 There may be a nip (not shown), a limiting structure 222 and a positioning portion 223 (shown in FIG. 8 ). The first insulating medium 231 abuts on the boundary between the first shaft hole 2111 and the second shaft hole 2122 in the axial direction. a stepped surface, and through the action of the nip portion, the first insulating medium 231 is in the first cylindrical portion 211, and the first insulating medium 231 is interference-fitted with the first cylindrical portion 211; the second insulating medium The second insulating medium 232 is disposed in the second cylindrical portion 212 and has an interference fit with the second cylindrical portion 212 after the installation is completed.

As described above, the side of the limiting structure 222 away from the positioning portion 223 may be disposed obliquely. When assembled, the second insulating medium 232 is nested from the inclined side of the limiting structure 222 until it abuts the positioning portion 223, and then passes through the positioning portion. The limiting action of 223 and the interference fit of the limiting structure 222 cause a tight fit between the second insulating medium 232 and the inner conductor 22; specifically, the second insulating medium 232 is nested from the inclined side of the limiting structure 222. The frictional resistance received during the process is small, and the frictional resistance on the other side of the limiting structure 222 is large during the reverse exiting, so that the relative relationship between the second insulating medium 232 and the inner conductor 22 can be well prevented. slide. In addition, in order to define the first insulating medium 231, the first shaft hole 2111 is provided with a ring-shaped annular boss 2110 (shown in FIG. 7) near the second shaft hole 2122, and the first insulating medium 231 is sandwiched on the inner wall of the annular boss 2110. The first insulating medium 231 is equal to the annular boss 2110 and the outer circumference of the outer wall of the inner conductor 22. It is not difficult to see that the embodiment provides a further interference fit between the first insulating medium 231 and the first cylindrical portion 211 by the action of the annular boss 2110, and can define the position of the first insulating medium 231 by the action of the nip. Therefore, the positioning effect on the first insulating medium 231 is effectively achieved. Of course, in other embodiments, the embossing portion may be replaced by the housing 250, and the position of the first insulating medium 231 is defined by the housing 250 and the annular boss 2110, which is within the scope of those skilled in the art. , no restrictions.

In summary, it is understood that the first embodiment of the present invention uses the combination of the outer conductor 21 and the inner conductor 22 to indirectly achieve the fixing of the first insulating medium 231, thereby ensuring the structural strength of the outer conductor 21 and reducing the processing cost thereof. And easy to assemble operations.

In this embodiment, preferably, the first insulating medium 231 is made of polyetheretherketone material and processed by turning, and the second insulating medium 232 is made of polytetrafluoroethylene material and processed by turning. The performance is optimized by differently setting the position, conduction, heat dissipation, temperature, and the like of the insulating medium 23 so as to match the outer conductor 21 and the inner conductor 22.

The present application realizes a stable connection between the electrical connectors by the action of the clamping member 24, which can effectively avoid the need for the spring inner tongue to be disposed on the third inner conductor 33 and the slit to cause the third inner conductor 33 to be easily damaged. In addition to the poor contact, the applicability of the third inner conductor 33 is indirectly increased.

Please refer to FIG. 10. FIG. 10 is a schematic structural view of an inner conductor and a clamping member of the coaxial connector assembly or the electrical connector of the present application. The inner conductor 41 and the clamping member 42 of the embodiment may be integrated. In the manner of molding, the clamping member 42 is located at the end of the inner conductor 41 for connecting the third inner conductor 33 (shown in FIG. 2 or FIG. 3) and is electrically connected. Of course, in other embodiments, the clamping member 42 can also be connected to the end of the inner conductor 41 for connecting the third inner conductor 33 by welding, which is not limited herein.

In the embodiment, the inner end of the inner conductor 41 is provided with a blind hole 410. The hole of the blind hole 410 is provided with a slit 421 extending in the axial direction, and the clamping member 42 is a hole wall of the blind hole 410. In this embodiment, a plurality of elastic pieces 422 are separated and formed via the slits 421. Further, the hole walls of the blind holes 410 are arc-shaped in a non-assembled and non-operating state to form a bottle-shaped socket having a radius of both ends slightly larger than the radius of the engaging portion, in other words, a plurality of pieces of the elastic piece 422 The engaging portions are bent toward the central axis of the clamping member 42 to form an arcuate shape, respectively, and the plurality of elastic pieces 422 are combined to form a bottle-shaped blind hole 410.

It is not difficult to understand that the clamping member 42 of the present embodiment is inserted into the bottle-shaped blind hole 410 at the end of the needle-shaped body or the spherical body of the third inner conductor 33 by means of a bottle-shaped blind hole 410. The plurality of elastic pieces 422 of the inner conductor 33 at the insertion end of the bottle end position, thereby achieving the elastic connection between the third inner conductor 33 and the clamping member 42, and correspondingly, the radius of the blind hole 410 at the neck of the bottleneck is slightly smaller than that of the third inner conductor. The radius of the insertion end of 33 for a reliable elastic connection.

The outer circumference of the clamping member 42 may also be concavely disposed with respect to the manner in which the socket is in the shape of a bottle neck. The specific concave curvature may be set according to the structural strength and material cost of the clamping member 42: If the material cost of the clamping member 42 is high, the less the outer circumference of the clamping member 42 is required, the greater the curvature of the concave portion, that is, the radius of each portion of the blind hole 410 is constant. The thinner the elastic piece 422 is, of course, the curvature of the concave portion can be reduced in order to increase the structural strength, so that the thickness of the elastic piece 422 is made thicker with a certain radius of each portion of the blind hole 410.

It should be noted that in other embodiments, the form of the slot 421 and the plurality of pieces of the elastic piece 422 may not be provided, but only the bottle-shaped blind hole 410 whose radius of both ends is slightly larger than the radius of the engaging portion is required, and the blind hole 410 is provided. The radius at the neck end position is slightly smaller than the radius of the insertion end of the third inner conductor 33 to form a spring piece having an elastic restoring force due to deformation by compression and to perform a reliable elastic connection, which will not be described in detail.

In addition, the coaxial connector assembly or the electrical connector of the present embodiment may further include a structure of an outer conductor and an insulating medium. For details, refer to the related description of one or more of the foregoing embodiments. This embodiment is only for the clamping member 42. The partial structure of the inner conductor 41 is described, and a limited description of the combination is not made within the scope of those skilled in the art.

In the assembled state, the electrical connector of the present embodiment and the adapter of the previous embodiment, the needle-like body or the end of the spherical body of the third inner conductor 33 is inserted into the clamping member 42, and the clamping member 42 elastically clamps the third inner portion of the adapter. The conductor 33, the inner conductor 41 and the third inner conductor 33 are movably connected such that the electrical connector and the adapter are movable relative to each other in the axial direction and the radial direction. Further, this embodiment also improves the applicability of the third inner conductor 33. .

Please refer to FIG. 11. FIG. 11 is a schematic structural view of another embodiment of the inner conductor and the clamping member of the coaxial connector assembly or the electrical connector of the present application, which is different from the embodiment of FIG. 10 in the inner conductor of the embodiment. A split arrangement between the 51 and the clamping member 52 can be employed.

Specifically, the inner conductor 51 is provided with an axial blind hole 510, and the clamping member 52 is disposed in the blind hole 510 and electrically connected. Of course, in a specific embodiment, the clamping member 52 can be connected to the inner conductor 51 by soldering, which is not limited herein.

The clamping member 52 of the embodiment may be a thin-walled member having a cylindrical shape, and the portion of the thin-walled member that is close to the opening of the blind hole 510 is a clamping portion 521, and the diameter of the cylindrical portion of the clamping portion 521 is toward the blind hole. The opening direction of 510 is gradually increased. The portion of the tubular body of the thin-walled member near the bottom of the blind hole 510 is an engaging portion 522, and the diameter of the cylindrical portion of the engaging portion 522 is gradually reduced toward the opening of the blind hole 510, and the third inner conductor (see FIG. 2, FIG. 3) is terminated. The portion (ie, the insertion end) is provided with a spherical body having a diameter larger than the small-diameter end of the thin-walled engaging portion 522. In the assembled state, the inner wall of the engaging portion 522 is engaged with the spherical body. The engaging portion 522 and the clamping portion 521 are provided with at least two slots 520 extending in the axial direction.

It should be noted that, in this embodiment, a plurality of elastic pieces are formed by the slits 520. The slits 520 may not be disposed through the both end faces in the axial direction of the clamping member 52. Further, the clamping portion 521 and the engaging portion 522 are arc-shaped in a non-assembled and non-operating state to form a bottle-shaped socket having a radius of both ends slightly larger than a radius of the intermediate portion, in other words, The intermediate portion of the plurality of elastic pieces is bent toward the central axis position of the clamping member 52 to form an arcuate shape, respectively, and the plurality of elastic pieces are combined to form a neck-shaped receiving socket.

The outer circumference of the clamping member 52 may also be concave in a manner that the connecting portion 521 and the engaging portion 522 are arcuately disposed in an unassembled and non-operating state such that the receiving socket has a bottle neck shape. It is provided that the specific concave curvature can be set according to the structural strength of the clamping member 52 and the material cost: for example, if the material cost of the clamping member 52 is high, the less material required for the outer circumference of the clamping member 52 is Well, the greater the curvature of the concave portion at this time, that is, the thinner the elastic piece in the case where the radius of each part of the socket is constant; of course, the curvature of the concave portion can also be reduced in order to increase the structural strength, so as to be connected to the socket. When the radius of each part is constant, the thickness of the elastic piece is made thicker.

It should be noted that, in other embodiments, the clamping member 52 may not be provided in the form of a slot 520 and a plurality of elastic pieces, but only a bottle-shaped socket having a radius slightly larger than the radius of the middle portion is required, and the connector is inserted. The radius of the hole at the bottle neck position is slightly smaller than the radius of the needle-like body or the end portion of the spherical body of the third inner conductor 33 to form a spring piece having an elastic restoring force due to deformation by compression and to perform a reliable elastic connection. It will not be described in detail here.

In addition, the coaxial connector assembly or the electrical connector of the present embodiment may further include a structure of an outer conductor and an insulating medium. For details, refer to the related description of one or more of the previous embodiments. This embodiment is only for the clamping member 52. The partial structure of the inner conductor 51 is described, and a limited description of the combination is not allowed within the scope of the understanding of those skilled in the art.

In the assembled state of the electrical connector and the adapter, the needle-like body or the end of the spherical body of the third inner conductor 33 is inserted into the clamping member 52, and the clamping member 52 elastically clamps the third inner conductor 33 of the adapter, and the inner conductor 51 The third inner conductor 33 is movably coupled such that the electrical connector and the adapter are movable relative to each other in the axial and radial directions. The present application realizes a stable connection between the electrical connectors by the action of the clamping member 52, which can effectively avoid the need for the spring inner tongue to be disposed on the third inner conductor 33 and the slit to cause the third inner conductor 33 to be easily damaged. In addition to the poor contact, the applicability of the third inner conductor 33 is indirectly increased.

The present application also provides a cavity filter, including a PCB circuit board, and a coaxial connector assembly connected to the PCB circuit board, the coaxial connector assembly including the adapter, and the first electrical connection respectively electrically connected to the two ends of the adapter a connector, a second electrical connector, the first electrical connector having a first inner conductor, a second electrical connector having a second inner conductor, the adapter having a third inner conductor, an end of the first inner conductor a first clamping member is disposed, and an end of the second inner conductor is provided with a second clamping member, and an end of one end of the third inner conductor is provided with a needle-shaped body, and an end portion of the other inner end is provided with a spherical shape. In the assembled state, the two ends of the adapter are respectively inserted into the first clamping member and the second clamping member, and the first clamping member elastically clamps the needle-shaped body at one end of the third inner conductor The second clamping member elastically clamps the spherical body at the other end of the third inner conductor such that the first electrical connector and the second electrical connector are movable in the axial direction and the radial direction with respect to the adapter.

The application further provides an RF remote unit, including an intermediate frequency module, a transceiver module, a power amplifier and a filtering module. The filtering module includes a cavity filter, the cavity filter includes a PCB circuit board, and is connected to the PCB circuit board. a shaft connector assembly, a coaxial connector assembly, including an adapter, and a first electrical connector, a second electrical connector respectively electrically coupled to both ends of the adapter, the first electrical connector having a first inner conductor, a second The electrical connector has a second inner conductor, the adapter has a third inner conductor, the end of the first inner conductor is provided with a first clamping member, and the end of the second inner conductor is provided with a second clamping The end of one end of the third inner conductor is provided with a needle-shaped body, and the end of the other end is provided with a spherical body; in the assembled state, the two ends of the adapter are respectively inserted into the first clamping member, a second clamping member elastically clamping a needle-shaped body at one end of the third inner conductor, the second clamping member elastically clamping a spherical body at the other end of the third inner conductor, such that The first electrical connector and the second electrical connector can be opposite to Adapter is moved in the axial and radial directions.

In the several embodiments provided by the present application, it should be understood that the disclosed apparatus and structure may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the structure or part is only a logical function division. In actual implementation, there may be another division manner, such as multiple structures or parts. Components and the like may be combined or integrated into another structure, or some features may be omitted or not.

The above description is only the embodiment of the present application, and thus does not limit the scope of the patent application, and the equivalent structure or equivalent process transformation made by using the specification and the drawings of the present application, or directly or indirectly applied to other related technologies. The fields are all included in the scope of patent protection of this application.

Claims

A coaxial connector assembly includes an adapter, and a first electrical connector and a second electrical connector respectively electrically connected to both ends of the adapter, the first electrical connector having a first inner conductor and a second electrical connector Having a second inner conductor, the adapter having a third inner conductor, characterized by:

The end of the first inner conductor is provided with a first clamping member, the end of the second inner conductor is provided with a second clamping member, and the end of one end of the third inner conductor is provided with a needle-shaped body. The other end of the end is provided with a spherical body;

In the assembled state, the two ends of the adapter are respectively inserted into the first clamping member and the second clamping member, and the first clamping member elastically clamps the needle-shaped body at one end of the third inner conductor, The two clamping members elastically clamp the spherical body at the other end of the third inner conductor such that the first electrical connector and the second electrical connector are movable in the axial direction and the radial direction with respect to the adapter.
The coaxial connector assembly of claim 1 wherein said first electrical connector has a first outer conductor on an outer circumference of the first inner conductor and the second electrical connector has a outer circumference on the outer circumference of the second inner conductor. a second outer conductor, the adapter has a third outer conductor located on an outer circumference of the third inner conductor, and a center of the first outer conductor and the second outer conductor is opened with a through hole for receiving the third outer conductor, The outer circumference of both end portions of the three outer conductors is provided with a ring protrusion which is axially slidable relative to the inner wall of the through hole.
The coaxial connector assembly according to claim 1 or 2, wherein the ends of the first inner conductor and the second inner conductor are respectively provided with axial blind holes, the first clamping member, The second clamping member is inserted into the blind hole.
The coaxial connector assembly according to claim 3, wherein said first clamping member and said second clamping member are cylindrical thin-walled members, said tubular body of said thin-walled member being adjacent to said The portion of the blind hole opening is a clamping portion, and the diameter of the cylindrical portion of the clamping portion gradually increases toward the blind hole opening direction.
The coaxial connector assembly according to claim 4, wherein a portion of the tubular body of the thin-walled member adjacent to the bottom of the blind hole is an engaging portion, and the diameter of the cylindrical portion of the engaging portion is blind The opening direction of the hole is gradually reduced, and the diameter of the spherical body at the end of the third inner conductor is larger than the small diameter end of the cylindrical portion of the thin-walled engaging portion, and in the assembled state, the inner wall of the engaging portion is stuck Connect the spheroid.
The coaxial connector assembly according to claim 5, wherein said engaging portion and said clamping portion are provided with at least two axially extending slots.
The coaxial connector assembly according to claim 3, wherein said first clamping member and said second clamping member are cylindrical thin-walled members, said first clamping member comprising a clamping portion The outer wall of the clamping portion is stepped, and includes a diameter enlarged region having an outer diameter larger than the blind hole and a diameter contraction region having an outer diameter smaller than the blind hole, and the clamping portion is formed to extend in the axial direction to at least penetrate the diameter The grooving of the enlarged area.
The coaxial connector assembly according to claim 7, wherein said first clamping member and said second clamping member further comprise a limiting portion connected to a side of the nip portion of the nip portion, said limit The outer diameter of the portion is larger than the outer diameter of the enlarged diameter region, and in the assembled state, the clamping portion is disposed in the blind hole, and the step surface between the limiting portion and the diameter contracting region abuts The end face of the blind hole.
The coaxial connector assembly according to claim 7, wherein an engaging portion is provided at a boundary between the diameter contracting region and the enlarged diameter portion of the clamping portion, and an inner wall of the engaging portion faces a blind hole opening direction. The diameter of the third inner conductor is gradually smaller than the small diameter end of the engaging portion. In the assembled state, the inner wall of the engaging portion is engaged with the spherical body.
The coaxial connector assembly according to claim 1 or 2, wherein the ends of the first inner conductor and the second inner conductor are respectively provided with blind holes, and the blind hole walls are provided along the axial direction. The first clamping member and the second clamping member are respectively the hole walls of the blind hole.
The coaxial connector assembly according to claim 10, wherein the slit extends through the open end surface of the blind hole, and the outer wall of the blind hole is sleeved with a sleeve member that is interference-fitted with the outer wall of the blind hole .
The coaxial connector assembly according to claim 11, wherein the inner hole of the sleeve member is a stepped hole, and in the assembled state, the stepped surface of the inner hole of the sleeve member abuts the blind hole An open end surface of the sleeve member is fixedly connected to the first inner conductor at an end of the sleeve member away from the open end surface of the blind hole.
A cavity filter comprising a PCB circuit board and a coaxial connector assembly coupled to the PCB circuit board, the coaxial connector assembly including an adapter, and a first electrical connector electrically coupled to both ends of the adapter, a second electrical connector, the first electrical connector having a first inner conductor, the second electrical connector having a second inner conductor, and the adapter having a third inner conductor, wherein:

The end of the first inner conductor is provided with a first clamping member, the end of the second inner conductor is provided with a second clamping member, and the end of one end of the third inner conductor is provided with a needle-shaped body. The other end of the end is provided with a spherical body;

In the assembled state, the two ends of the adapter are respectively inserted into the first clamping member and the second clamping member, and the first clamping member elastically clamps the needle-shaped body at one end of the third inner conductor, The two clamping members elastically clamp the spherical body at the other end of the third inner conductor such that the first electrical connector and the second electrical connector are movable in the axial direction and the radial direction with respect to the adapter.
The cavity filter according to claim 13, wherein said first electrical connector has a first outer conductor located on an outer circumference of said first inner conductor, and said second electrical connector has a first outer circumference of said second inner conductor a second outer conductor, the adapter having a third outer conductor located at an outer circumference of the third inner conductor, the first outer conductor and the second outer conductor having a through hole at a center thereof for receiving the third outer conductor, the third The outer circumference of both end portions of the outer conductor is provided with a ring protrusion which is axially slidable relative to the inner wall of the through hole.
An RF remote unit includes an intermediate frequency module, a transceiver module, a power amplifier and a filtering module, the filtering module includes a cavity filter, the cavity filter includes a PCB circuit board, and is connected to the PCB circuit board a shaft connector assembly, the coaxial connector assembly including an adapter, and a first electrical connector, a second electrical connector respectively electrically coupled to both ends of the adapter, the first electrical connector having a first inner conductor, The second electrical connector has a second inner conductor, and the adapter has a third inner conductor, characterized by:

The end of the first inner conductor is provided with a first clamping member, the end of the second inner conductor is provided with a second clamping member, and the end of one end of the third inner conductor is provided with a needle-shaped body. The other end of the end is provided with a spherical body;

In the assembled state, the two ends of the adapter are respectively inserted into the first clamping member and the second clamping member, and the first clamping member elastically clamps the needle-shaped body at one end of the third inner conductor, The two clamping members elastically clamp the spherical body at the other end of the third inner conductor such that the first electrical connector and the second electrical connector are movable in the axial direction and the radial direction with respect to the adapter.
The radio remote unit according to claim 15, wherein said first electrical connector has a first outer conductor located on an outer circumference of said first inner conductor, and said second electrical connector has a first outer circumference of said second inner conductor a second outer conductor, the adapter having a third outer conductor located at an outer circumference of the third inner conductor, the first outer conductor and the second outer conductor having a through hole at a center thereof for receiving the third outer conductor, the third The outer circumference of both end portions of the outer conductor is provided with a ring protrusion which is axially slidable relative to the inner wall of the through hole.