CN102916514B - A kind of coil component and manufacture method thereof - Google Patents
A kind of coil component and manufacture method thereof Download PDFInfo
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- CN102916514B CN102916514B CN201110373223.9A CN201110373223A CN102916514B CN 102916514 B CN102916514 B CN 102916514B CN 201110373223 A CN201110373223 A CN 201110373223A CN 102916514 B CN102916514 B CN 102916514B
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- contact pin
- guard member
- stator module
- coil
- pin guard
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention discloses a kind of coil component, comprises stator module, and stator module comprises stator casing, electromagnetism pole plate and the stator winding with contact pin, coil component also comprises contact pin guard member, contact pin guard member is provided with the pin holes of cooperation corresponding with described stator module, contact pin on described stator module inserts the pin holes of described contact pin guard member, and be exposed to the outer surface of contact pin guard member, carry out injection molding after contact pin guard member and stator module fit together again and form coil injection molding part, the insulation baffle of the coated contact pin guard member of injection molded layers of coil injection molding part, the contact pin end that the not coated described contact pin of injection molded layers of coil injection molding part stretches out from contact pin guard member, also the outer surface of the described dorsad stator module of not coated contact pin guard member.On this basis, the present invention also provides the manufacture method of this coil component.
Description
Technical field
The present invention relates to air-conditioning technical field, be specifically related to a kind of coil component of stepping motor, as coil of electronic expansion valve parts and manufacture method thereof.
Background technology
In prior art, electric expansion valve is the power according to system parameters exporting change, the aperture of valve is remained on the position of needs, to keep the liquid supply rate of evaporator needs.The coil housing of conditional electronic expansion valve is contained in the outside of valve body, and the rotor in coil and valve body forms motor; In the course of work, realized the adjustment of aperture by the inner valve rod action of rotor banding moving valve.
That the stator module of coil component is placed on by injection mo(u)lding in injection mold in prior art, concrete, be contact pin is directly inserted in injection mold position, then injection mo(u)lding is carried out, like this, on the one hand because contact pin is more, when mating with mould, the long period can be needed to load and unload; In addition in injection moulding process injected plastics material have part can flow out around contact pin, thus affect coordinating of contact pin and other connectors; To also have when to take out moulding after injection moulding can relative difficulty some.In addition, if when contact pin is divided into two rows, because contact size is relatively little, and successive pins spacing is also less, therefore, when stator module being loaded injection mold, contact pin will corresponding to the corresponding pin holes of insertion, and operating efficiency is lower; Particularly, because contact pin position needs and cable welding, the moulding planar section that contact pin exposes has not allowed injection moulding burr, and this just requires that the pin holes that mould coordinates can not have chamfering, and above-mentioned requirements makes the efficiency of the pin holes of contact pin loading mould lower.
In addition, the plastic material owing to injecting during stator module injection moulding is the fluid state of HTHP, and therefore, contact pin will be fixed when injection moulding reliably and must not at injection moulding power effect bottom offset.
Summary of the invention
For above-mentioned defect, the technical problem that the present invention solves is to provide a kind of coil component and manufacture method thereof, is particularly applicable to coil component and the manufacture method thereof of the step motor types such as electric expansion valve.The present invention includes following technical scheme for this reason:
A kind of coil component, comprise stator module, described stator module comprises stator casing, electromagnetism pole plate and the stator winding with contact pin, it is characterized in that, described coil component also comprises contact pin guard member, described contact pin guard member is provided with the pin holes of cooperation corresponding with described stator module, described contact pin guard member is provided with towards the side of described stator module the insulation baffle extended from contact pin guard member end face, contact pin on described stator module inserts the pin holes of described contact pin guard member, contact pin end is passed described contact pin guard member and is exposed to the outer surface of contact pin guard member, described contact pin guard member and described stator module are fitted together and carry out injection molding again after locating to form coil injection molding part, the insulation baffle of the coated described contact pin guard member of injection molded layers of coil injection molding part and described contact pin guard member are towards the contact pin guard member end face of described stator module or most contact pin guard member end face, the contact pin end that the not coated described contact pin of injection molded layers of coil injection molding part stretches out from described contact pin guard member, also the outer surface of the described dorsad stator module of not coated described contact pin guard member, the contact pin end of described coil injection molding part is connected with outside by cable or cable assembly.
Preferably, described contact pin guard member is also provided with guide-localization hole in one end towards described stator module of pin holes set by it, when the contact pin on described stator module inserts the pin holes of described contact pin guard member be first by described guide-localization hole, again by described pin holes; A face in described guide-localization hole is locating surface, and described contact pin guard member and described stator module fit together and locate, particular by the contact pin of described stator module and described locating surface inconsistent and locate; The injection molded layers coated described guide-localization hole simultaneously of described coil injection molding part.
Preferably, described stator module comprises stator winding, cover on the stator casing on described stator winding, and the electromagnetism pole plate between stator winding, the skeleton of described stator winding is provided with the skeleton contact pin portion of fixing plug pin, the contact pin of stator winding has the first kink near described skeleton contact pin portion, the first straight section of contact pin is formed between skeleton contact pin portion and the first kink, contact pin also has the second kink, positioning section is formed between first kink and the second kink, the second straight section of contact pin is formed outside second kink, the positioning section of the contact pin of described stator module and the inconsistent contact pin particular by described stator module of locating surface of described contact pin guard member and the locating surface of described contact pin guard member inconsistent and locate.
Preferably; the contact pin of described stator module and described locating surface inconsistent and when locating, described contact pin guard member towards the skeleton contact pin portion towards described contact pin guard member of the skeleton of the contact pin guard member end face in stator module direction and stator module end face between the distance L insulation baffle that is more than or equal to contact pin guard member protrude from the height H of contact pin guard member end face.
Preferably; the contact pin end of the contact pin of described stator module is divided into two row's arrangements; accordingly; it is corresponding with the contact pin end of the contact pin of described stator module that pin holes in described contact pin guard member is also divided into two rows; between two often adjacent pin holes, be provided with insulation baffle, namely described insulation baffle is arranged on the often adjacent short transverse of two pin holes and the centre position of Width.
Advantageously, described coil component also comprises cable case, the coil injection molding part of described coil component also comprises snap-fit, the case auxiliary section coordinated with described cable case, described cable case and case auxiliary section form embedding space after combining and fixing, and make liquid insulating material enter embedding space Post RDBMS by spontaneous curing or heating cure to become insulator seal to fill with layer, and described snap-fit is arranged near described contact pin guard member, described snap-fit is groove-like, the throughput circulated for insulating material is provided with between described snap-fit and described contact pin guard member, during dielectric resin material solidification, the bottom of buckle is also fixed together.
The present invention also provides a kind of manufacture method of coil component, and described coil component comprises stator module, and described stator module comprises stator casing, electromagnetism pole plate and the stator winding with contact pin; Described coil component also comprises contact pin guard member; described contact pin guard member is provided with the pin holes of cooperation corresponding with described stator module; described contact pin guard member is provided with towards the side of described stator module the insulation baffle extended from contact pin guard member end face; contact pin on described stator module inserts the pin holes of described contact pin guard member; contact pin end is passed described contact pin guard member and is exposed to the outer surface of contact pin guard member, and the manufacture process of described coil component comprises the following steps completed successively:
I, has first been the process and assemble of stator winding;
II, be by stator winding, add stator casing, electromagnetism pole plate, be assembled into stator module;
III, stator module and contact pin guard member to be fitted together and after locating, put into injection mold as injection moulding inserts together and be processed into coil injection molding part by injection mo(u)lding, the insulation baffle of the coated described contact pin guard member of injection molded layers of coil injection molding part and described contact pin guard member are towards the contact pin guard member end face of described stator module or most contact pin guard member end face, the contact pin end that the not coated described contact pin of injection molded layers of coil injection molding part stretches out from described contact pin guard member, also the outer surface of the described dorsad stator module of not coated described contact pin guard member, namely contact pin guard member is as the some of coil injection molding part, take out separately after noting be used in injection moulding,
IV, the cable assembly be connected and coil injection molding part carried out assembling fix with outside, make the connection that cable assembly is corresponding with contact pin;
V: the assembling of cable case: thermoplastics is placed on coil injection molding part by the cable case that injection molding is formed, make thin-wall construction outstanding on cable case and the inconsistent location of case mating surface of coil injection molding part, then by Ultrasonic Plastic Welding, both are welded and fixed together.
VI: envelope fills with insulating resin: sealed quantitatively in the embedding hole being poured into and being formed between cable case and coil injection molding part by the resin material of the liquid state of insulation, and make liquid resin material be solidified into insulator seal filling layer by spontaneous curing or heating cure.
Preferably; in Step II I: make stator module and contact pin guard member fit together and locate; specifically make the locating surface of the contact pin of stator module and contact pin guard member inconsistent come both location, and ensure that the contact pin of stator module stretches out the consistency of the contact pin end of contact pin guard member.
Preferably, in Step II I, also form snap-fit during the injection moulding of coil injection molding part, described snap-fit is arranged near described contact pin guard member simultaneously, and snap-fit is communicated with the pars intermedia in described embedding hole;
To fill with before insulating resin in step VI envelope after Step II I completes, also α in steps:
Step α: be installed button, buckle loaded the snap-fit of coil injection molding part;
And, in step VI: when envelope fills with insulating resin, the resin material of the liquid state of insulation is sealed in the embedding hole being poured into and being formed between cable case and coil injection molding part or snap-fit quantitatively, and by spontaneous curing or heating cure, buckle is also fixed together by insulator seal filling layer simultaneously.
Preferably, in step I: when completing the process and assemble of stator winding; Specifically comprise step below:
Step δ: contact pin on skeleton: the pin holes respectively contact pin being inserted the skeleton contact pin portion of skeleton, and require the short portion of contact pin to be entered or locally enters in the recess in skeleton contact pin portion to locate;
Step β: coiling enamelled wire winding: coiling enamelled wire on skeleton, forms enamelled wire winding; Then the end of a thread at the two ends of enamelled wire and contact pin are connected and fixed respectively by soldering;
Step γ: bend cutting pin: contact pin is bent and forms contact pin drip molding, contact pin drip molding comprises the first kink, the second kink, the positioning section that formed between the first kink and the second kink, and the first straight section before the first kink and the second straight section 115 after the second kink;
Wherein, the step β in above-mentioned steps and step γ can exchange sequentially.
Coil component of the present invention is by arranging contact pin guard member; injection moulding is carried out again after stator module and contact pin guard member are assembled; the handling of such injection moulding are just very convenient; production efficiency can correspondingly improve; and can not injected plastics material be stained with during the injection moulding of contact pin front end; when adding injection moulding, contact pin only to need to insert in contact pin guard member and injection moulding is no longer extracted after completing; during injection moulding, contact pin does not directly contact with injection mold and locates; higher compared with original efficiency of loading and unloading; and the surface quality of contact pin can not be affected, also more reliable with the connection of other links like this.The insulation baffle between the contact pin of stator module with contact pin guard member simultaneously carries out a point used outside insulated, enables the insulation property between the contact pin of coil component very reliable.
And contact pin is contacted with contact pin guard member locate; when injection moulding because the contact pin that fixedly makes between contact pin guard member and injection mold also can reliably be fixed; also can not be subjected to displacement even if stressed when injection moulding, thus overall connection reliability can be guaranteed more.
Accompanying drawing explanation
Fig. 1 is the assembling process schematic diagram of the stator winding of the coil of electronic expansion valve parts of the first embodiment of the present invention;
Fig. 2 is the assembling schematic diagram of the stator module of the coil component of the first embodiment of the present invention;
Fig. 3 is the assembling process schematic diagram of coil component from stator module to coil component of the first embodiment of the present invention;
Fig. 4 is the perspective view of the contact pin guard member forward of the first embodiment coil parts of the present invention;
Fig. 4 a is the schematic diagram of the reverse solid of the guard member of contact pin shown in Fig. 4;
Fig. 4 b is the front view of the guard member of contact pin shown in Fig. 4;
Fig. 4 c is the rearview of the guard member of contact pin shown in Fig. 4;
Fig. 4 d is A-A cutaway view of contact pin guard member shown in Fig. 4 c;
Fig. 4 e is B-B cutaway view of contact pin guard member shown in Fig. 4 c;
Fig. 5 is the perspective view of the stator module of the first embodiment coil parts of the present invention;
Fig. 6 is (from the contact pin) cross-sectional schematic after the stator module of the first embodiment coil parts of the present invention and contact pin guard member are assembled;
Fig. 6 a is the close-up schematic view of the I part of Fig. 6;
Fig. 7 is the assembling process schematic diagram of the stator winding of the coil component of the second execution mode of the present invention;
Fig. 8 is the schematic diagram of a kind of embodiment of coil injection molding part of the present invention;
Fig. 9 is that the A-A of the part of coil injection molding shown in Fig. 8 dissects schematic diagram;
Figure 10 is the structural representation that a kind of embodiment of coil component of the present invention is dissected.
Embodiment
Core of the present invention is for the stator module of coil component loads and unloads when injection moulding convenient, solves the fixation problem of the contact pin of coil component when injection moulding simultaneously, thus enhances productivity.Below in conjunction with Figure of description, illustrate embodiments of the present invention with a kind of coil component of electric expansion valve and manufacture method thereof, in the following description, the structure combination system making method of coil component is described together.
The manufacture method of coil of electronic expansion valve parts of the present invention comprises the following steps completed successively:
1, the processing of each part: comprise skeleton 10 by injection mo(u)lding, contact pin 11, the punch forming of stator casing 13, electromagnetism pole plate 14, the injection mo(u)lding of contact pin guard member 15, cable case 17;
2, the assembling of stator winding 1;
3, the assembling of stator module 2;
4, coil component is processed in stator module 2 assembling.
Wherein Fig. 1 is the assembling process schematic diagram of the stator winding 1 of the coil of electronic expansion valve parts of the first embodiment of the present invention.Skeleton 10 of the present invention is formed by injection molding, and skeleton adopts thermoplastic manufacture, particularly as PBT, PET, PE etc.; Skeleton 10 is in annular roughly, and be provided with skeleton contact pin portion 102, skeleton contact pin portion 102 protrudes from skeleton our department of general toroidal from a direction, skeleton contact pin portion 102 is provided with pin holes 103, as shown in the figure, the assembling process of the stator winding of these execution mode coil parts comprises the following steps:
210: contact pin on skeleton: will often organize three contact pins 11 and load the pin holes 103 in the skeleton contact pin portion 102 of skeleton 10 respectively, and require the short portion of contact pin to be entered or locally enters in the recess in skeleton contact pin portion 102 to locate, such contact pin is axial, circumference all obtains fixing;
220: coiling enamelled wire winding: coiling enamelled wire on the skeleton after upper contact pin, form enamelled wire winding 12; Then the end of a thread at the two ends of enamelled wire and contact pin are connected and fixed respectively by soldering;
230: bend cutting pin: the parts of good for coiling enamelled wire winding are placed in frock, bend contact pin and form contact pin drip molding 11a, contact pin drip molding 11a comprises the first positioning section 113 (or second positioning section 116 on another assembly), the first straight section 111 and the second straight section 115 that are formed between the first kink 112, second kink 114, first kink 112 and the second kink 114; Thus formation stator winding.
The above is the first kind of way of processing stator winding in embodiment of the present invention, also can adopt processing mode as shown in Figure 7 in addition, and Fig. 7 is the assembling process schematic diagram of the stator winding of the coil of electronic expansion valve parts of the second execution mode of the present invention.Particularly, present embodiment is the different of processing sequence from the main distinction of the first execution mode above, in present embodiment be contact pin is inserted skeleton and fixing after, first bend contact pin and form contact pin drip molding 11a, and then carry out the coiling of enamelled wire, other same as the above first embodiment, no longer repeats here.In addition contact pin can also be when skeleton injection moulding as inserts and skeleton integrated, eliminate contact pin operation like this, but the efficiency of skeleton injection moulding can be relatively lower.
After stator winding 1 processes, next be the assembling of stator module 2, as shown in Fig. 2, Fig. 5, Fig. 2 is the assembling schematic diagram of the stator module of the coil of electronic expansion valve parts of the first embodiment of the present invention, and Fig. 5 is the perspective view after the stator module of the coil of electronic expansion valve parts of the first embodiment of the present invention has been assembled.Stator module 2 comprises two stator winding, 1, two stator casings 13 and two electromagnetism pole plates 14, stator casing 13 is roughly in block shape, four four locating notches 132 coordinated with described electromagnetism pole plate that there is notch part 131 and circumferentially arrange, the skeleton contact pin portion 102 that the width of notch part 131 is greater than skeleton 10 coordinates with skeleton contact pin portion to facilitate; Electromagnetism pole plate 14 is provided with four location divisions 141 coordinated with the locating notch 132 of stator casing 13 at its periphery, its plate face is provided with two positioning convex points 142 coordinated with another electromagnetism pole plate, location hole 143 and two location holes coordinated with skeleton 144.Said stator shell 13 and electromagnetism pole plate 14 are all formed by punch process.
During concrete assembling, above-mentioned parts is assembled in the order be arranged above and below by stator casing, stator winding, electromagnetism pole plate, electromagnetism pole plate, stator winding, stator casing, and makes between the location structure between two adjacent parts as positioning convex point, location division or location hole, locating notch are worked in coordination location between any two; Also two electromagnetism pole plates 14 can first be assembled in addition, after both cooperations are had good positioning, reinstall stator winding 1, and make to engage between stator winding with electromagnetism pole plate to locate, and then cover two stator casings 13 respectively, similarly, the location hole 134 of stator casing is made to match with the positioning convex point of the skeleton on stator winding and locate; Such stator module just assembling completes.
After stator module has been assembled, next be exactly the general assembly of coil component, as Fig. 3, Fig. 4, Fig. 6, Fig. 8, Fig. 9, shown in Figure 10, Fig. 3 is the assembling process schematic diagram of coil of electronic expansion valve parts from stator module to coil component of the first embodiment of the present invention, Fig. 4 is the perspective view of the contact pin guard member forward of the coil of electronic expansion valve parts of the first embodiment of the present invention, Fig. 4 a is the schematic diagram of the reverse solid of the guard member of contact pin shown in Fig. 4, Fig. 4 b is the front view of the guard member of contact pin shown in Fig. 4, Fig. 4 c is the rearview of the guard member of contact pin shown in Fig. 4, Fig. 4 d is A-A cutaway view of contact pin guard member shown in Fig. 4 c, Fig. 4 e is B-B cutaway view of contact pin guard member shown in Fig. 4 c, Fig. 6 is the cross-sectional schematic after the stator module of the coil of electronic expansion valve parts of the first embodiment of the present invention and contact pin guard member are assembled, Fig. 6 a is the close-up schematic view of Fig. 6, Fig. 8 is the structural representation of a kind of execution mode of coil injection molding part of the present invention, Fig. 9 is that the A-A of the part of coil injection molding shown in Fig. 8 dissects schematic diagram, Figure 10 is the structural representation (wherein contact pin is shown in broken lines) that a kind of embodiment of coil component of the present invention is dissected.
Coil parts of the present invention also comprise contact pin guard member 15, as shown in Figure 4, contact pin guard member 15 is injection molded by insulating material to the structure of contact pin guard member 15, particularly, can pass through thermoplastic injection moulding, also can be use heat cured material cured shaping; Contact pin guard member 15 is roughly square structure, like this can be more convenient with the location fit of mould.Contact pin guard member 15 is provided with two groups, often organizes each three pin holes 155, two groups of pin holes 155 are provided separately in the height direction, corresponding with two groups of contact pins of stator module respectively, pin holes 155 runs through contact pin guard member and arranges, the degree of depth L1 of pin holes 155, L2 control between 1.5-3mm, when injection moulding, injected plastics material is not easy through the gap pin holes and contact pin like this, and contact pin end 117 part being exposed to pin holes like this can not be stained with injected plastics material; After contact pin guard member, lack part is respectively arranged with below pin holes 155, respectively for first lack part 156 of first group of (relatively high) pin holes, the second lack part 157 for second group of (relatively low) pin holes, be connected with cable assembly to facilitate; Injection molded layers wherein between pin holes 155 and lack part relatively book, injection molded layers thickness d between pin holes 155 and lack part is at below 1mm, be more preferably, injection molded layers thickness d between pin holes 155 and lack part is at below 0.5mm, convenient with the connection of cable assembly like this, and the contact being more applicable to contact pin end and cable assembly is welded and fixed.
In addition, the front end of pin holes 155 is provided with guide-localization hole, the insulation baffle 151 for the contact pin of two neighbours being carried out dielectric separation is provided with between two adjacent guide-localization holes, insulation baffle is arranged between two often adjacent pin holes, the short transverse of two namely adjacent pin holes and the approximate mid-section position of Width; Insulation baffle 151 protrudes from the contact pin guard member end face 154 of contact pin guard member 15, and that is, insulation baffle 151 is outstanding towards the direction of the skeleton of coil component; Wherein the one side near insulation baffle in guide-localization hole forms the first locating surface 152 of coordinating with the contact pin positioning section of contact pin and locating or the second locating surface 153, first locating surface 152, second locating surface 153 is respectively used to coordinate with the positioning section of the contact pin of one of them stator winding in stator module.
Stator module as shown in Figure 5, stator module 2 and contact pin guard member 15 assemble after state as shown in Figure 6.After contact pin guard member and stator module are assembled, the contact pin of stator module 2 passes guide-localization hole, the pin holes 155 of contact pin guard member 15, and the second straight section 115 of contact pin is through pin holes 155 and namely some be partly exposed to the rear end surface of contact pin guard member in illustrated contact pin end 117; Contact pin and contact pin guard member 15 inconsistent time; namely the positioning section of the contact pin of stator module and the locating surface of contact pin guard member inconsistent time; particularly; first positioning section 113 that can be the contact pin of stator module is inconsistent with contact pin second locating surface 153 of contact pin guard member; with or second positioning section 116 of contact pin of another stator winding inconsistent with contact pin first locating surface 152, certainly preferably contact simultaneously and locate.Now; contact pin guard member 15 towards the skeleton contact pin portion 102 of the skeleton of the contact pin guard member end face 154 in stator module direction and stator module 2 skeleton contact pin end surface 101 between the distance L insulation baffle 151 that is more than or equal to contact pin guard member 15 protrude from the height H of contact pin guard member end face 154; namely now, insulate baffle 151 with also there is gap between skeleton contact pin end surface 101 or contact simultaneously.Like this; because contact pin is by frock bending forming; relatively can ensure the consistency of each section of contact pin; and obtain location by contacting between contact pin with contact pin guard member between stator module with contact pin guard member now; like this; contact pin stretches out the length of contact pin guard member and contact pin end 117 part can ensure consistency, and during injection moulding, contact pin can not be shifted because the impact by injection moulding power, thus can ensure consistency and the stability of product.
Particularly, from stator module, comprise to the process of having assembled the following steps completed successively:
410: the assembling of contact pin guard member 15 and stator module 2: by two of stator module 2 groups of contact pins, often organize totally 3 contact pins and insert two socket pin holes of contact pin guard member 15 from the direction, guide-localization hole of contact pin guard member 15 respectively, the positioning section of contact pin is contacted with the locating surface of contact pin guard member 15 and locates; Certainly preferably two groups of contact pins can contact with two groups of locating surfaces of contact pin guard member 15 simultaneously; but sometimes only have local contact pin to contact with the locating surface of contact pin guard member 15, and between the locating surface of other contact pin and contact pin guard member 15, also have a little gap passable too.
420: the injection moulding of moulding: the stator module installing contact pin guard member 15 is put into injection mold, form coil injection molding part 3 by injection moulding, coil injection molding part 3 is as shown in Fig. 3, Fig. 8, Fig. 9.The outer peripheral face 135 of the coated stator module 2 of injection molded layers 31 of coil injection molding part 3 and surface, top and the bottom 133, simultaneously the coated contact pin guard member 15 of injection molded layers 31 of coil moulding 3 is towards 5 insulation baffles of stator module and guide-localization holes, pin holes due to contact pin guard member 15 has certain degree of depth, so injection molded layers can not pass the gap of pin holes and contact pin, thus the contact pin end 117 of contact pin can not be affected; The surface of the not coated surface of the contact pin guard member from the contact pin end 117 that contact pin guard member 15 is stretched out, contact pin end perimeter of injection molded layers 31 and the first lack part 157, lack part 156, second in addition, the i.e. outer surface of the not coated contact pin guard member 15 of injection molded layers 31 this side of stator module dorsad, such contact pin is freely in injection mold, do not need aligned contact, thus the surface quality of contact pin can be ensured; Injection molded layers 31 is formed with a snap-fit 313, the cooperation fixed part 312 coordinated with described contact pin guard member 15, roughly encloses the case mating surface 311 coordinated with case 17 of shape in three bread, in order to coordinate facilitate case mating surface 311 three faces roughly in one plane.Snap-fit 313 is arranged near described contact pin guard member 15; described snap-fit is groove-like; described coil injection molding part when snap-fit is placed down (as Fig. 9); the bottom surface 3131 of described snap-fit 313 groove is higher than the end face 150 arranging described snap-fit of described contact pin guard member; throughput 315 is provided with between described snap-fit and described contact pin guard member; be beneficial to circulation Post RDBMS when insulating material envelope is filled with, and buckle is fixed further.The bottom surface of snap-fit also can a little less than the end face 150 of contact pin guard member in addition.
Particularly; injection molded layers 31 can be contact with the contact pin guard member end face 154 of contact pin guard member 15 with the cooperation fixed part 312 that described contact pin guard member 15 coordinates; also can be injection moulding auxiliary section 158 part between contact pin guard member end face 154 that is coated or locally coated contact pin guard member 15 and the bottom surface 159 of lack part in addition, can the present invention be realized like this.Preferably, the cross section of injection moulding auxiliary section 158 is roughly square, can slightly chamfering, more simple and convenient with coordinating of injection mold like this.In addition, preferably, the width of the cooperation fixed part 312 that injection molded layers 31 coordinates with described contact pin guard member 15 can equal the width W of contact pin guard member 15, and manufacturing and designing of such injection mold can be convenient; In addition, coordinate the width of fixed part 312 can be a bit larger tham the width W of contact pin guard member 15, like this, coordinate fixed part 312 to be carried out the injection moulding auxiliary section 158 of contact pin guard member 15 coated or local is coated, like this, on injection mold, respective design needs stage portion.
430: the assembling of cable assembly, welding: cable assembly comprises cable and circuit board, both are fixed together by welding, circuit board is provided with pin holes, the pin holes of cable assembly is aimed at the contact pin end 117 of coil moulding 3, make contact pin end 117 through pin holes, then contact pin end 117 and circuit board are carried out being welded and fixed being connected, can be welded by immersed solder particularly, the length of the contact pin end 117 of coil injection molding part 3 is preferably at more than 2.2mm for this reason, like this after passing circuit board, still there is certain length can immerse in welding fluid cylinder and carry out immersed solder, contact pin end 117 also can be undertaken being welded and fixed being connected by flatiron with the welding of circuit board in addition, can be manual or automatic.In addition cable assembly be not limited to above described in, directly can also be connected with contact pin end by plugging mode, be understand more reliable by welding rear connection; In addition above described in be that cable is connected with circuit board and then is connected with contact pin, also can be the direct and contact pin connected mode of cable.
440: the assembling of cable case: cable case is also that thermoplastics is formed by injection molding, cable case is provided with for welding the outstanding thin-wall construction coordinated with moulding, during both assemblings, the coil injection molding part assembling cable assembly is placed on the base of frock, again cable case 17 is placed on coil injection molding part, make cable case be close to moulding and make accurate positioning between the two, make thin-wall construction outstanding on cable case and the inconsistent location of case mating surface 311 of coil injection molding part specifically, then by Ultrasonic Plastic Welding, both are welded and fixed together.Cable case and coil injection molding part also can be fixed and arrange buckle as one in both arranges card access surface, in addition one, also one can arrange and arrange the protuberance matched in groove, in addition one and coordinate by such as crimping the fixing mode of the machineries such as fixing, engaging in addition.
450: be installed button: buckle is loaded and has assembled in the snap-fit 313 of the coil injection molding part of cable case, and make stationary positioned between the two.
460: envelope fills with insulating resin: lie in a horizontal plane in frock by the coil component installing buckle, and the resin material of the liquid state of insulation is sealed quantitatively in the embedding space being poured into and being formed between cable case and coil injection molding part, and make liquid resin material be solidified into insulator seal filling layer 19 by spontaneous curing or heating cure, owing to circulate in embedding hole 171 and the pars intermedia of the snap-fit 313 of placing buckle 18, insulator seal is filled with layer 19 and is also fixed together by buckle 18 simultaneously.So namely, complete the processing of whole coil component.
The above is the first execution mode of assembling from stator module to coil component, in addition in step recited above, one of them step 450: be installed button to advance to 420: after this operation of the injection moulding of moulding, namely last assembling comprises the following steps completed successively:
410: the assembling of contact pin guard member 15 and stator module 2.
420: the injection moulding of moulding.
450: be installed button.
430: the assembling of cable assembly, welding.
440: the assembly welding of cable case.
460: envelope fills with insulating resin, curing molding.
In addition, this step of button that is installed can also be placed between step 430 (assembling of cable assembly, welding) and 440 (assembly weldings of cable case), in these two kinds of assemble methods, other concrete assembling process is with described first execution mode is identical above, no longer repeats here.
Coil component of the present invention is by arranging contact pin guard member; injection moulding is carried out again after stator module and contact pin guard member are assembled; the insulation baffle between the contact pin of stator module with contact pin guard member carries out a point used outside insulated; enable the insulation property between the contact pin of coil component very reliable; and contact pin is contacted with contact pin guard member locate; when injection moulding because the contact pin that fixedly makes between contact pin guard member and injection mold also can reliably be fixed; also can not be subjected to displacement even if stressed when injection moulding, thus overall connection reliability can be guaranteed more.In addition, during injection moulding, contact pin does not directly contact with injection mold and locates, higher compared with original efficiency of loading and unloading, and can not affect the surface quality of contact pin.
Each mentioned above orientation word, as upper and lower, forward and backward etc. just clear for convenience, should not regard as the restriction to protection scope of the present invention.In execution mode in addition by bending, the contact pin of stator module is made that the front end of contact pin forms two row, pin holes equally accordingly in contact pin guard member be also arranged to two corresponding rows be so conveniently below with the welding of cable assembly; increase the insulation distance between two adjacent contact pins simultaneously, to be in a rowly equally also fine if contact pin is arranged.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a coil component, comprises stator module, and described stator module comprises stator casing, electromagnetism pole plate and the stator winding with contact pin, it is characterized in that, described coil component also comprises contact pin guard member, described contact pin guard member is provided with the pin holes of cooperation corresponding with described stator module, described contact pin guard member is provided with towards the side of described stator module the insulation baffle extended from contact pin guard member end face, contact pin on described stator module inserts the pin holes of described contact pin guard member, contact pin end is passed described contact pin guard member and is exposed to the outer surface of contact pin guard member, described contact pin guard member and described stator module are fitted together and carry out injection molding again after locating to form coil injection molding part, the insulation baffle of the coated described contact pin guard member of injection molded layers of coil injection molding part and described contact pin guard member are towards the contact pin guard member end face of described stator module or most contact pin guard member end face, the contact pin end that the not coated described contact pin of injection molded layers of coil injection molding part stretches out from described contact pin guard member, also the outer surface of the described dorsad stator module of not coated described contact pin guard member, the contact pin end of described coil injection molding part is connected with outside by cable or cable assembly.
2. coil component according to claim 1, it is characterized in that, described contact pin guard member is also provided with guide-localization hole in one end towards described stator module of pin holes set by it, when the contact pin on described stator module inserts the pin holes of described contact pin guard member be first by described guide-localization hole, again by described pin holes; A face in described guide-localization hole is locating surface, and described contact pin guard member and described stator module fit together and locate, particular by the contact pin of described stator module and described locating surface inconsistent and locate; The injection molded layers coated described guide-localization hole simultaneously of described coil injection molding part.
3. coil component according to claim 2, it is characterized in that, described stator module comprises stator winding, cover on the stator casing on described stator winding, and the electromagnetism pole plate between stator winding, the skeleton of described stator winding is provided with the skeleton contact pin portion of fixing plug pin, the contact pin of stator winding has the first kink near described skeleton contact pin portion, the first straight section of contact pin is formed between skeleton contact pin portion and the first kink, contact pin also has the second kink, positioning section is formed between first kink and the second kink, the second straight section of contact pin is formed outside second kink, the positioning section of the contact pin of described stator module and the inconsistent contact pin particular by described stator module of locating surface of described contact pin guard member and the locating surface of described contact pin guard member inconsistent and locate.
4. coil component according to claim 2; it is characterized in that; the contact pin of described stator module and described locating surface inconsistent and when locating, described contact pin guard member towards the skeleton contact pin portion towards described contact pin guard member of the skeleton of the contact pin guard member end face in stator module direction and stator module end face between the distance L insulation baffle that is more than or equal to contact pin guard member protrude from the height H of contact pin guard member end face.
5. coil component according to any one of claim 1 to 4; it is characterized in that; the contact pin end of the contact pin of described stator module is divided into two row's arrangements; accordingly; it is corresponding with the contact pin end of the contact pin of described stator module that pin holes in described contact pin guard member is also divided into two rows; between two often adjacent pin holes, be provided with insulation baffle, namely described insulation baffle is arranged on the often adjacent short transverse of two pin holes and the centre position of Width.
6. the coil component according to any one of claim 1-4, it is characterized in that, described coil component also comprises cable case, the coil injection molding part of described coil component also comprises snap-fit, the case auxiliary section coordinated with described cable case, described cable case and case auxiliary section form embedding space after combining and fixing, and make liquid insulating material enter embedding space Post RDBMS by spontaneous curing or heating cure to become insulator seal to fill with layer, and described snap-fit is arranged near described contact pin guard member, described snap-fit is groove-like, the throughput circulated for insulating material is provided with between described snap-fit and described contact pin guard member, during dielectric resin material solidification, the bottom of buckle is also fixed together.
7. a manufacture method for coil component, described coil component comprises stator module, and described stator module comprises stator casing, electromagnetism pole plate and the stator winding with contact pin; Described coil component also comprises contact pin guard member; described contact pin guard member is provided with the pin holes of cooperation corresponding with described stator module; described contact pin guard member is provided with towards the side of described stator module the insulation baffle extended from contact pin guard member end face; contact pin on described stator module inserts the pin holes of described contact pin guard member; contact pin end is passed described contact pin guard member and is exposed to the outer surface of contact pin guard member, and the manufacture process of described coil component comprises the following steps completed successively:
I, first, be the process and assemble of stator winding;
II, be by stator winding, add stator casing, electromagnetism pole plate, be assembled into stator module;
III, stator module and contact pin guard member to be fitted together and after locating, put into injection mold as injection moulding inserts together and be processed into coil injection molding part by injection mo(u)lding, the insulation baffle of the coated described contact pin guard member of injection molded layers of coil injection molding part and described contact pin guard member are towards the contact pin guard member end face of described stator module or most contact pin guard member end face, the contact pin end that the not coated described contact pin of injection molded layers of coil injection molding part stretches out from described contact pin guard member, also the outer surface of the described dorsad stator module of not coated described contact pin guard member, namely contact pin guard member is as the some of coil injection molding part, take out separately after noting be used in injection moulding,
IV, the cable assembly be connected with outside and coil injection molding part are carried out assembling to fix, make the connection that cable assembly is corresponding with contact pin;
V: the assembling of cable case: thermoplastics is placed on coil injection molding part by the cable case that injection molding is formed, make thin-wall construction outstanding on cable case and the inconsistent location of case mating surface of coil injection molding part, then by Ultrasonic Plastic Welding, both are welded and fixed together;
VI: envelope fills with insulating resin: sealed quantitatively in the embedding hole being poured into and being formed between cable case and coil injection molding part by the resin material of the liquid state of insulation, and make liquid resin material be solidified into insulator seal filling layer by spontaneous curing or heating cure.
8. the manufacture method of coil component as claimed in claim 7; it is characterized in that; in step III: make stator module and contact pin guard member fit together and locate; specifically make the locating surface of the contact pin of stator module and contact pin guard member inconsistent come both location, and ensure that the contact pin of stator module stretches out the consistency of the contact pin end of contact pin guard member.
9. the manufacture method of coil component as claimed in claim 7 or 8, it is characterized in that, in step III, during the injection moulding of coil injection molding part, also form snap-fit simultaneously, described snap-fit is arranged near described contact pin guard member, and snap-fit is communicated with the pars intermedia in described embedding hole;
To fill with before insulating resin in step VI envelope after step III completes, also α in steps:
Step α: be installed button, buckle loaded the snap-fit of coil injection molding part;
And, in step VI: when envelope fills with insulating resin, the resin material of the liquid state of insulation is sealed in the embedding hole being poured into and being formed between cable case and coil injection molding part or snap-fit quantitatively, and by spontaneous curing or heating cure, buckle is also fixed together by insulator seal filling layer simultaneously.
10. the manufacture method of coil component as claimed in claim 7 or 8, is characterized in that, in step I: when completing the process and assemble of stator winding; Specifically comprise step below:
Step δ: contact pin on skeleton: the pin holes respectively contact pin being inserted the skeleton contact pin portion of skeleton, and require the short portion of contact pin to be entered or locally enters in the recess in skeleton contact pin portion to locate;
Step β: coiling enamelled wire winding: coiling enamelled wire on skeleton, forms enamelled wire winding; Then the end of a thread at the two ends of enamelled wire and contact pin are connected and fixed respectively by soldering;
Step γ: bend cutting pin: contact pin is bent and forms contact pin drip molding, contact pin drip molding comprises the first kink, the second kink, the positioning section that formed between the first kink and the second kink, and the first straight section before the first kink and the second straight section 115 after the second kink;
Wherein, the step β in above-mentioned steps and step γ can exchange sequentially.
Priority Applications (1)
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| CN201110373223.9A CN102916514B (en) | 2011-08-04 | 2011-11-22 | A kind of coil component and manufacture method thereof |
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| CN201110222960.9 | 2011-08-04 | ||
| CN201110222960 | 2011-08-04 | ||
| CN201110373223.9A CN102916514B (en) | 2011-08-04 | 2011-11-22 | A kind of coil component and manufacture method thereof |
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| CN102916514A CN102916514A (en) | 2013-02-06 |
| CN102916514B true CN102916514B (en) | 2016-01-13 |
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| CN201110373223.9A Active CN102916514B (en) | 2011-08-04 | 2011-11-22 | A kind of coil component and manufacture method thereof |
| CN201110373939.9A Active CN102913661B (en) | 2011-08-04 | 2011-11-22 | Contact pin cladding and there is the coil injection molding part of this contact pin cladding |
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| CN201110373939.9A Active CN102913661B (en) | 2011-08-04 | 2011-11-22 | Contact pin cladding and there is the coil injection molding part of this contact pin cladding |
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| CN107345590A (en) * | 2016-05-06 | 2017-11-14 | 浙江三花智能控制股份有限公司 | A kind of electric expansion valve and its coil assembly, the assembly method of coil assembly |
| DE102016220269A1 (en) * | 2016-10-17 | 2018-04-19 | Mahle International Gmbh | electric motor |
| CN107363539A (en) * | 2017-08-22 | 2017-11-21 | 昆山市嘉士捷智能科技有限公司 | A kind of automatically slotting PIN needle equipment |
| CN107370253A (en) * | 2017-09-11 | 2017-11-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Motor and its stator module |
| CN109802505B (en) * | 2017-11-17 | 2021-07-06 | 浙江盾安禾田金属有限公司 | Electromagnetic coil and manufacturing method thereof |
| CN107830228B (en) * | 2017-12-05 | 2023-05-09 | 浙江中宝自控元件有限公司 | Flow control valve stator |
| CN108123557B (en) * | 2017-12-28 | 2020-08-11 | 一诺仪器（中国）有限公司 | Double-layer stator disc with smooth inner wall and manufacturing method thereof |
| CN108638433A (en) * | 2018-05-23 | 2018-10-12 | 合兴汽车电子股份有限公司 | Throttle body and position sensor fixed seat, position sensor high-temperature injection method |
| CN209805624U (en) * | 2018-10-13 | 2019-12-17 | 广东惠利普智能科技股份有限公司 | Contact pin and motor of winding enameled wire broken string are prevented in motor assembly |
| CN112151229B (en) * | 2019-06-28 | 2022-06-17 | 浙江盾安禾田金属有限公司 | Electromagnetic coil device |
| CN110544993B (en) * | 2019-08-23 | 2022-03-08 | 奇鋐科技股份有限公司 | Stator structure |
| DE102020215269A1 (en) * | 2020-12-03 | 2022-06-09 | Mahle International Gmbh | Electrical stator for an expansion valve |
| CN216487648U (en) * | 2021-12-15 | 2022-05-10 | 浙江盾安人工环境股份有限公司 | Coil assembly and electronic expansion valve with same |
| CN216487647U (en) * | 2021-12-15 | 2022-05-10 | 浙江盾安人工环境股份有限公司 | Coil assembly and electronic expansion valve with same |
| CN217306278U (en) * | 2022-03-28 | 2022-08-26 | 浙江盾安禾田金属有限公司 | Coil component and solenoid valve |
| CN115882671A (en) * | 2022-12-31 | 2023-03-31 | 常州卓优电器有限公司 | Injection molding stator preparation process and injection molding stator |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102913661B (en) | 2016-05-18 |
| CN102916514A (en) | 2013-02-06 |
| CN102913661A (en) | 2013-02-06 |
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Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Patentee before: Zhejiang Sanhua Group Co., Ltd. |