CN101335408B - Complementary shielding small square type backing plate electrical connector - Google Patents

Complementary shielding small square type backing plate electrical connector Download PDF

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Publication number
CN101335408B
CN101335408B CN2007100778272A CN200710077827A CN101335408B CN 101335408 B CN101335408 B CN 101335408B CN 2007100778272 A CN2007100778272 A CN 2007100778272A CN 200710077827 A CN200710077827 A CN 200710077827A CN 101335408 B CN101335408 B CN 101335408B
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China
Prior art keywords
shield blade
connector
type shield
type
differential signal
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Expired - Fee Related
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CN2007100778272A
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Chinese (zh)
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CN101335408A (en
Inventor
曹永泉
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Guizhou Space Appliance Co Ltd
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Guizhou Space Appliance Co Ltd
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Priority to CN2007100778272A priority Critical patent/CN101335408B/en
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Abstract

The invention discloses a complementary shielding small-rectangular backplane connector, which consists of a needle connector and a hole connector that consists of four parts, namely, a guide locating end closure, a conversion terminal, a veneer component and an abutting plate. The needle connector adopts an arrowhead-shaped boss structure and a Z-shaped shielding piece and a right-angle V-shaped shielding piece mixed installing structure, thus realizing an all-dimensional shield among differential signal pairs and achieving excellent efficiency of electromagnetism shielding, and ensuing that the backplane connector does not distort at high-speed and with high-density transmission.

Description

Complementary shielding small square type backing plate electrical connector
One, technical field
The present invention relates to be used for the electric connector of electronic system, relate in particular to a kind of complementary shielding small square type backing plate electrical connector.
Two, background technology
In some large scale electronic equipments or communication system, the polylith ply-yarn drill all links to each other by backboard with control signal with data between master control resource board, the switching network card, and realizes that by the numerous high speed connectors on the backboard signal between backboards and the daughter board card is electrically connected.Because the volume of electronic installation is more and more littler at present, data processing speed is more and more faster, the unfavorable factor of thereupon bringing is that the problem of electromagnetic interference and cross-talk is more and more serious.So in order to adapt to the development of electronics industry, electric connector must not reduce signal quality at the less space more faster data signals of carrying.
In order to make at a high speed and highdensity connector, the connector designer has inserted shield blade in approach signal contact pin place.These shield blade have reduced the electromagnetic coupled between the signal contact pin, thereby offset the influence of tight quarters or the influence of high-frequency signal.If configuration suitably, shielding can also improve the integrality of the signal of connector carrying by the impedance of connector control signal path.
The early stage use of shielding sees Fujitsu Ltd. on February 15th, 1974 disclosed Japan Patent 49-6543 and United States Patent (USP) 4,632,476 and 4,806, in 107, in the connector of this several patents explanation, shielding promptly is parallel to signal contact pin and also passes through back plane connector through daughter board, has adopted the cantilever inserting column to carry out electric connection between shielding and back plane connector.Transfer the patent 5,433617 of Framatome Connector International all; 5,429,521; 5,429,520 and 5,433,618 have illustrated similar structure.Other connector only has barricade in daughter board.The example of such connector design can be from patent 4,846,727; Find in 4,975,084,5,496,183 and 5,066,236, all these patents have all transferred AMP Inc..Yet the shielding in these connectors has only been set up shielding between signal contact pin row, ignored differential signal between electromagnetic coupled.
The invention provides a kind of complementary shielding small square type backing plate electrical connector, utilize 4 strips,, overcome the defective of prior art with the complementary shielding technology of horizontal right angle bending shield blade.
Three, summary of the invention
The purpose of this invention is to provide a kind of have the quality signal operating characteristic, at a high speed, high density, the little square back panel connector of well-set complementary shielding.
This back panel connector comprises a hole connector and a needle connector.Wherein hole connector is made up of guide-localization end cap, conversion terminal, laminate assembly, buttcover plate four parts, helps the quick assembling of product.In addition, the laminate assembly comprises left and right 4 strips, and with the shield blade of horizontal right angle bending, they cooperatively interact, complementary shielding, differential signal between, all set up good shielding between the laminate assembly.Needle connector adopts arrowhead-shaped boss structure, when defining differential signal contact pin position, has played butt joint, guide effect.In addition, this back panel connector has adopted the structure that loads in mixture of Z type shield blade and right angle V-type shield blade, realized differential signal contact pin between comprehensive shielding.Adopt the beneficial effect of the technical program to be: this electric connector structure compactness, the convenient use, it is good to the electromagnetic shielding effect to be easy to expansion, guarantees at a high speed, the high density transmission signals is undistorted.
Four, description of drawings
Fig. 1 is the structure assembling of complementary shielding small square type backing plate electrical connector of the present invention
Schematic diagram;
Among the figure: 1-needle connector, 10-differential signal are whole to back panel connector to, 11-worker's type shield blade, 12-right angle V-type shield blade, 13-pedestal, 2-hole connector, 20-guide-localization end cap, 22-laminate assembly, 23-buttcover plate, 25-conversion terminal, 100-.
Fig. 2, Fig. 3 are the needle connector supports of complementary shielding small square type backing plate electrical connector of the present invention, front end face, rear end face and pedestal assembling schematic diagram, and Fig. 3 is the partial enlarged drawing of Fig. 2.
Among the figure: 13-pedestal, 131-front end face, 132-sidewall, 133-rear end face, 134-arrow-shaped boss, the narrow groove of 1311-, 1321-sipes, 1322-sidewall chamfering, 1341-boss break corner, the narrow groove of 1342-, 11-Z type shield blade, 12-right angle V-type shield blade, 10-differential signal to, the blade of 101-projection, fixedly double wedge, 103-printed board are press-fitted pin to 102-.
Fig. 4 is the needle connector assembly drawing of complementary shielding small square type backing plate electrical connector of the present invention.
Among the figure: the 10-differential signal is to, 11-Z type shield blade, 12-right angle V-type shield blade, 111,121-arrowband, 112,122-finger-like sheet.
Fig. 5 is the conversion terminal enlarged drawing of complementary shielding small square type backing plate electrical connector of the present invention;
Among the figure: 25-conversion terminal, the circular finger-like sheet of 251-, 252-guiding contact, 253-arc palmate sheet.
Fig. 6, Fig. 7 are the laminate assembly assembly drawings of complementary shielding small square type backing plate electrical connector of the present invention;
Among the figure: 30-inserts unit, 300-end face, 301-other end, 302-rear end face, 303-upper surface, 304-front end face, the long narrow groove of 3010-, the narrow groove of 3011-, 3021-triangle boss, 3022-square boss, 3031,3041,3042-T type guider, 3061-signal contact pin pin, 3062-differential signal are to the docking section.
Fig. 8, Fig. 9 are the left and right shield blade position assumption diagrams of complementary shielding small square type backing plate electrical connector
Among the figure: 31 (a)-lower-left shield blade, 31 (b)-upper left shield blade, 31 (c)-bottom right shield blade, 31 (d)-upper right shield blade, 310,311-palmate shell fragment, 312,313-right angle bending inserted sheet, 314-pin, 3121-hangnail, 3141-bending.
Five, embodiment
According to electric connector picture group of the present invention shown in Figure 1, this High speed rear panel connector is by needle connector 1, and hole connector 2 constitutes.Needle connector 1 cooperates assembling with hole connector 2, forms whole little square back panel connector 100 to the high-speed and high-density complementary shielding.
Needle connector 1 by pedestal 13, Z type shield blade 11, right angle V-type shield blade 12, and many to differential signal contact pin form 10.Hole connector 2 comprises that a guide-localization end cap 20, a plurality of differential signal conversion terminal 25, a plurality of laminate assembly 22, a buttcover plate 23 form.
Upper surface 131, bottom face and pedestal 13 assemblings as the pedestal 13 of Fig. 2, needle connector shown in Figure 3.The arrowhead-shaped boss 134 of many rows (two narrow grooves 1342 that extend to bottom face 133 of bilateral symmetry distribution of boss have distributed on the upper surface of pedestal 13 (front end face) 131, the boss top is provided with chamfering 1341, so that butt joint), many rows are around narrow groove 1311 boss, that extend to bottom face (rear end face) 133.The both sides of the edge of pedestal 13 form two side 132 to remote extension.Sidewall 132 upper ends are provided with chamfering 1322, are distributed with on the sidewall at two ends simultaneously to be used to the sipes 1321 of locating, leading.The very little round boss of rear end face distribution two row's thickness of pedestal 13 utilizes two grooves about dark about 1.2mm simultaneously, narrow groove 1311 is coupled together, so that finish the assembling of shield blade 11,12.
Z type shield blade 11, right angle V-type shield blade 12, differential signal contact pin put in place to 10 rear end face 133 assemblings by pedestal 13.Differential signal contact pin to 10 comprise the projection blade 101, the double wedge 102 that is used for fixing, be used for the pin 103 that printed board is press-fitted.After differential signal contact pin puts in place to 10 assemblings, be distributed in the both sides of arrowhead-shaped boss 134 symmetrically.
Assemble needle connector as shown in Figure 4, according to rear end face 133, shield blade 11,12 and the differential signal contact pin of hiding pedestal 13 to the position view between 10.Z type shield blade 11 comprises 3 finger-like sheets 112, and the arrowband 111 by the bottom is connected.V-type right angle shield blade 12 comprises two finger-like sheets 122, and the arrowband 121 by the bottom is connected also one time punching molded equally.When assembling, arrowband 111,121 is embedded in the narrow groove of pedestal lower surface.
As shown in Figure 5 conversion terminal 25 by the arc palmate structure 253 of the circular finger 251 that stretches out, projection, and guiding contact 252 3 parts form.The contact 252 that wherein leads matches with the narrow groove of the guiding in the end cap, the arc palmate structure 253 of projection is connected with the blade 101 of the differential signal contact pin of needle connector 1 to projection, and circular finger 251 matches to 3062 with the differential signal of hole connector 2.Thereby realized the switching effect of conversion terminal.
Illustrate: in signals transmission,, therefore reduced the air gap, butt end, reduced the transfger impedance between conductor because contact area is bigger between conversion terminal and the differential contact elements.
Fig. 6, Fig. 7 are the assembling schematic diagram of laminate assembly 22, and Z type shield blade 11, right angle V-type shield blade 12 with some in laminate assembly 22 are inlaid in inserts unit 30.Z type shield blade and right angle V-type shield blade are arranged up and down and are cooperatively interacted, and realize complementary shielding.Inserts unit 30 is by through stamping forming differential pair signal contact pin, makes through Shooting Technique.Signal contact pin comprises pin 3061, middle transition part (not shown), the butted part 3062 that is used for printed board and is press-fitted.What butted part adopted here is the three-chip type contact chip, more helps the transmission of signal, reduces reflection.
Because the two sides similar of inserts unit 30 only describes single face here.End face 300 is a little more than end face 301 (placing the position of shield blade).End face 301 is provided with a plurality of narrow grooves 3011 and long narrow groove 3010.Narrow groove 3011 is used for cooperating with double wedge 312 on the shield blade, plays the effect of fixed mask sheet.Long narrow groove is used to hold the right angle bending 313 on the shield blade, thus at differential signal to playing shielding action.Inserts unit 30 rear end faces 302 are provided with square boss 3022 and triangle boss 3021, and when hole connector 2 assemblings, they just in time are stuck in the square opening.T type structure 3031 on the upper surface 303 of inserts unit 30, the T type structures 3041,3042 of being given prominence to by front end face 304 are guider, play important guide effect when installing to the laminate component groups on the end cap.
Assembling as the left and right sides shield blade of Fig. 8, complementary shielding small square type backing plate electrical connector shown in Figure 9.Left and right shield blade 31 (a) (b), (c) (d) structure is similar substantially, only left shield blade 31 (a) is introduced here.A left side comprises the right angle bending inserted sheet 313,312 (inserted sheet 312 front ends are provided with hangnail 3121, have realized the fixing of shield blade) that is used for matching with corresponding narrow groove 3010,3011 on the inserts 30 on the shield blade, be distributed in differential signal between the bending 3141 of position stretch out pin 314, with needle connector on shield blade 11,12 contacted palmate shell fragments 310,311.
In sum, the complementary shielding of the shield blade of back panel connector 100 of the present invention can reach good ELECTROMAGNETIC OBSCURANT effect, thereby guarantees that back panel connector 100 is undistorted when high speed, high density transmission.

Claims (4)

1. complementary shielding small square type backing plate electrical connector, it is characterized in that: it is made up of needle connector (1) and hole connector (2), hole connector (2) also comprises laminate assembly (22) and differential signal conversion terminal (25), the laminate assembly of described hole connector adopts a left side, right 4 strips, and shield blade complementary shielding structure with the bending of horizontal right angle, this back panel connector adopts Z type shield blade (11) and right angle V-type shield blade (12), in laminate assembly (22) with the Z type shield blade (11) of some, right angle V-type shield blade (12) is inlaid in inserts unit (30), Z type shield blade (11) is arranged up and down with right angle V-type shield blade, and the realization complementary shielding cooperatively interacts.
2. complementary shielding small square type backing plate electrical connector as claimed in claim 1 is characterized in that: needle connector (1) is by pedestal (13), Z type shield blade (11) and right angle V-type shield blade (12) and many differential signal contact pin is formed (10); Hole connector (2) is by a guide-localization end cap (20), a plurality of differential signal conversion terminals (25), a plurality of laminate assemblies (22), a buttcover plate (23) is formed, Z type shield blade (11) comprises finger-like sheet (112) and arrowband (111), right angle V-type shield blade (12) also comprises finger-like sheet (122) and arrowband (121), wherein Z type shield blade (11) is made of with the arrowband (121) that is connected with described three finger-like bottoms three fingers, V-type shield blade (12) is made of with the arrowband that is connected with described two fingers bottoms two fingers, the arrowband of described Z type shield blade during assembling, the arrowband of described V-type shield blade is embedded in the narrow groove of pedestal lower surface, and differential signal contact pin (10) is surrounded by each shield blade.
3. complementary shielding small square type backing plate electrical connector as claimed in claim 1 is characterized in that: in needle connector (1), be provided with arrowhead-shaped boss, differential signal contact pin comprises the blade (101) of the both sides that are distributed in this arrowhead-shaped boss symmetrically to (10).
4. complementary shielding small square type backing plate electrical connector as claimed in claim 1 is characterized in that: differential signal conversion terminal (25) is made up of the arc palmate structure (253) and guiding contact (252) three parts of circular finger (251), projection.
CN2007100778272A 2007-06-29 2007-06-29 Complementary shielding small square type backing plate electrical connector Expired - Fee Related CN101335408B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2007100778272A CN101335408B (en) 2007-06-29 2007-06-29 Complementary shielding small square type backing plate electrical connector

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CN101335408B true CN101335408B (en) 2010-06-09

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7824197B1 (en) * 2009-10-09 2010-11-02 Tyco Electronics Corporation Modular connector system
CN110247233B (en) * 2018-03-09 2021-12-21 泰科电子(上海)有限公司 Connector with a locking member
CN111934141B (en) * 2020-08-13 2021-10-01 深圳格力浦电子有限公司 Connector with shielding function

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066236A (en) * 1989-10-10 1991-11-19 Amp Incorporated Impedance matched backplane connector
US5433618A (en) * 1993-06-04 1995-07-18 Framatome Connectors International Connector assembly
US6347962B1 (en) * 2001-01-30 2002-02-19 Tyco Electronics Corporation Connector assembly with multi-contact ground shields
CN2519434Y (en) * 2001-05-09 2002-10-30 富士康(昆山)电脑接插件有限公司 Electric connector
CN1401147A (en) * 2000-02-03 2003-03-05 泰拉丁公司 Differential signal electrical connector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066236A (en) * 1989-10-10 1991-11-19 Amp Incorporated Impedance matched backplane connector
US5433618A (en) * 1993-06-04 1995-07-18 Framatome Connectors International Connector assembly
CN1401147A (en) * 2000-02-03 2003-03-05 泰拉丁公司 Differential signal electrical connector
US6347962B1 (en) * 2001-01-30 2002-02-19 Tyco Electronics Corporation Connector assembly with multi-contact ground shields
CN2519434Y (en) * 2001-05-09 2002-10-30 富士康(昆山)电脑接插件有限公司 Electric connector

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Assignee: Guizhou Aerospace Industry Co.,Ltd.

Assignor: Guizhou Space Electric Appliance Co., Ltd.

Contract record no.: 2010520000014

Denomination of invention: Complementary shielding small square type backing plate electrical connector

Granted publication date: 20100609

License type: Exclusive License

Open date: 20081231

Record date: 20101115

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100609

Termination date: 20140629

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