CN1831410A - Manufacturing method for coil of electronic expansion valve - Google Patents
Manufacturing method for coil of electronic expansion valve Download PDFInfo
- Publication number
- CN1831410A CN1831410A CN 200510049335 CN200510049335A CN1831410A CN 1831410 A CN1831410 A CN 1831410A CN 200510049335 CN200510049335 CN 200510049335 CN 200510049335 A CN200510049335 A CN 200510049335A CN 1831410 A CN1831410 A CN 1831410A
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- coil
- expansion valve
- electronic expansion
- stator
- insulating bush
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- Electrically Driven Valve-Operating Means (AREA)
- Electromagnets (AREA)
Abstract
The invention is a method for making electronic expansion valve coil for a refrigerating system, firstly winding enamelled wires on upper and lower coil frames, the ends of the enamelled wires are welded with needles, and then placing two electromagnetic polar plates between the two coil frames, and characterized by assembling stator composed the above parts with an insulating sleeve socket, placing them in a mould cavity and locating, enveloping the stator and the insulating sleeve socket together to compose a coil enveloping piece, jacketing two stator cases on the coil enveloping piece, and finally connecting the edges of the two stator cases and welding a locating clamp piece on one stator case. It shortens moulding time, raises working efficiency, and has low manufacturing cost.
Description
Technical field
The present invention relates to be applied in the coil of electronic expansion valve in the refrigeration system, specifically a kind of making method of coil of electronic expansion valve.
Background technique
Coil of electronic expansion valve is the motive drive source that is applied in control electronic expansion valve body in the refrigeration system.Original coil of electronic expansion valve all adopts thermosetting plastics to make by simple mould pressing process, its manufacture method following (seeing Fig. 1,2): at first on upper and lower two coil racks (I, II), the enameled cable of the certain number of turn of coiling (III, IV), the end of a thread of enameled cable welds together with three contact pins (V) that are inserted in skeleton socket end, between two coil racks, place the electromagnetism pole plate (VI, VII) of two magnetic conductions again, between the stator casing of upper and lower two magnetic conductions of overcoat (VIII, IX), constitute stator module.With after stator module and an insulating bush socket (X) assembling, be placed in the die cavity of heat cure moulding again, utilize thermosetting plastics to be molded into one described stator module and insulating bush socket, form the coil working of plastics.At last, generally adopt tapping screw (XI) installing and locating sheet (XII) on the coil working of plastics, be used for coil location at the electronic expansion valve body.This kind coil causes winding volume bigger because of the inside that coil flux guide (electromagnetism pole plate and stator casing) all is potted in working of plastics, and the coil heat radiation is bad; The molding time of mould pressing process is long, inefficiency; The coil encapsulating material is a thermosetting plastics, and material can not be recycled, the manufacture cost height of coil; The coil encapsulating material is different with the material of making the use of coil rack and insulating bush socket, and the three can not organically fuse together, and the insulated enclosure performance is relatively poor relatively; Phenomenon loosening and that working of plastics breaks in use can appear in the positioning cards that is installed on the working of plastics.
Summary of the invention
Technical problem to be solved by this invention is the defective that overcomes above-mentioned prior art, and a kind of method that adopts Shooting Technique to make coil of electronic expansion valve is provided, and the coil after sealing is placed in the stator casing, to reduce winding volume, improves radiating effect; Adopt Shooting Technique to shorten molding time, increase work efficiency.
The technical solution adopted in the present invention is as follows: the making method of coil of electronic expansion valve, earlier last, coiling enameled cable on following two coil racks, the end of a thread of enameled cable and the contact pin welding that is inserted in skeleton socket end, between two coil racks, place the electromagnetism pole plate of two magnetic conductions then, it is characterized in that: the stator module and the insulating bush socket that are made of above-mentioned parts assemble, then be placed on location in the die cavity, described stator module and insulating bush socket are encapsulated in together with encapsulating material by injection molding forming method, constitute plastic an of coil, again at the stator casing of two magnetic conductions of plastic overcoat of described coil, to go up at last, the edge of two stator casings is connected down, and welding one location card on the stator casing therein.The present invention adopts the encapsulating material Shooting Technique, has shortened molding time, has improved working efficiency, and plastic of coil after sealing is placed in the stator casing, has reduced winding volume, has improved radiating effect.In order to cooperate above-mentioned making method, the present invention also improves the installing and locating mode of coil, by on the coil working of plastics, adopting tapping screw originally the coil location card was installed, change on the stator casing of coil of the present invention and weld positioning cards, avoided positioning cards to be installed in and in use occurred phenomenon loosening and that working of plastics breaks on original working of plastics by projection welding; Welded structure is reliable and stable, and technology is simple, has improved manufacturing efficiency and product reliability in use.
The making method of described coil of electronic expansion valve, encapsulating material are thermoplastic material, and coil rack and insulating bush socket adopt identical with encapsulating material or materials similar is made.Coil rack, the insulating bush socket is identical with the material of sealing usefulness or similar, all is thermoplastic material or similar material, and when the coil molding and forming, because three's material property is same or similar, the three can organically fuse together like this, and the insulated enclosure performance is good.
The making method of described coil of electronic expansion valve, before injection moulding was sealed, the top of insulating bush socket was provided with at least one location column that is used for mould location usefulness.When the coil injection moulding is sealed, coil insulation cover socket often is difficult in manual being in place in the die cavity, the effect of location column is: when the encapsulating mold matched moulds, mould can be press-fit into place it by the column that is arranged on insulating bush socket upper end, promptly plays the effect of mold pressing location.The location column lower end is big, and the upper end is little, helps the demoulding after the molding and forming of insulating bush socket like this.
The insulating bush socket is the port that the coil winding lighting outlet links to each other with control system, except realizing this effect, also requirement can have certain waterproof ability, because have condensed water attached to valve body surface during electric expansion valve work, for this reason, the top edge of insulating bush socket of the present invention has the tip shape corner angle of enhanced leaktightness.These corner angle are in order to be easy to and the organic fusion of encapsulating material when the molding and forming, like this can reinforced insulation cover socket and encapsulating material between adhesive strength, improve the water-proof performance of insulating bush socket.The making method of described coil of electronic expansion valve, described positioning cards is
Shape is used for coil location at valve body.
The present invention has following beneficial effect: 1. the thermoplastic material Shooting Technique substitutes the thermosets mould pressing process, has shortened molding time, has improved working efficiency; 2. coil rack, insulating bush socket and encapsulating material adopt same or analogous thermoplastic material, have strengthened triangular adhesive strength, and the insulated enclosure performance is good, and material can be recycled low cost of manufacture; 3. the structure of insulating bush socket is improved, played the effect of mold pressing location, also improved water-proof performance; 4. weld positioning cards by projection welding on the coil case, technology is simple, and the manufacturing efficiency height has been avoided positioning cards to be installed in and in use occurred phenomenon loosening and that working of plastics breaks on original working of plastics, and product is in use reliable and stable.
The present invention is further illustrated below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 makes flow chart for existing coil of electronic expansion valve.
Fig. 2 is the structural drawing of existing coil of electronic expansion valve.
Fig. 3 is the structural drawing of coil of electronic expansion valve of the present invention.
Fig. 4 makes flow chart for coil of electronic expansion valve of the present invention.
Fig. 5 is the insulating bush socket figure of coil of electronic expansion valve of the present invention.
Fig. 6 is the positioning cards structural drawing of coil of electronic expansion valve of the present invention.
Embodiment
Coil of electronic expansion valve shown in Fig. 3-6, its working process is as follows:
At first on upper and lower two coil racks 1,2, the enameled cable 3,4 of the certain number of turn of coiling, the end of a thread of enameled cable welds together with three contact pins 7 that are inserted in skeleton socket end, constitute upper and lower two coil winding A, B, then between two coil winding, place the electromagnetism pole plate 5,6 of two magnetic conductions, constitute upper and lower two coil assembly C, D, two coil assemblies are superimposed constitutes stator module E, will obtain assembly F after stator module E and 8 assemblings of insulating bush socket then.The insulating bush socket is before assembling, and its upper end is provided with five and is used for the column 8a that injection mould press-fits the location, and the location column lower end is big, and the upper end is little.The top edge of insulating bush socket also has the tip shape corner angle 8b of enhanced leaktightness.
Assembly F is placed in the die cavity of molding and forming, utilize stud location, adopt the mode of molding and forming to be encapsulated in together described stator module and insulating bush socket with thermoplastic material, coil rack and insulating bush socket adopt the thermoplastic material identical with encapsulating material to make, make between the three organically to fuse together, constitute plastic G of a coil; Outside plastic, put the stator casing 9,10 of two magnetic conductions then, wherein descend on the stator casing 10, be welded with one by projection welding in advance and be
The positioning cards 11 of shape, promptly the case member H of Gou Chenging adopts two shell edges the mode of spot welding butt joint to weld together at last.
Claims (6)
1, the making method of coil of electronic expansion valve, earlier last, coiling enameled cable on following two coil racks, the end of a thread of enameled cable and the contact pin welding that is inserted in skeleton socket end, between two coil racks, place the electromagnetism pole plate of two magnetic conductions then, it is characterized in that: the stator module and the insulating bush socket that are made of above-mentioned parts assemble, then be placed on location in the die cavity, described stator module and insulating bush socket are encapsulated in together with encapsulating material by injection molding forming method, constitute plastic an of coil, again at the stator casing of two magnetic conductions of plastic overcoat of described coil, to go up at last, the edge of two stator casings welding down, and welding one location card on the stator casing therein.
2, the making method of coil of electronic expansion valve according to claim 1 is characterized in that: described encapsulating material is a thermoplastic material, and coil rack and insulating bush socket adopt identical with encapsulating material or materials similar is made.
3, the making method of coil of electronic expansion valve according to claim 1 and 2 is characterized in that: before injection moulding was sealed, the top of insulating bush socket was provided with at least one location column that is used for mould location usefulness.
4, the making method of coil of electronic expansion valve according to claim 3 is characterized in that: described location column lower end is big, and the upper end is little.
5, the making method of coil of electronic expansion valve according to claim 3 is characterized in that: the top periphery of insulating bush socket has the tip shape corner angle of enhanced leaktightness.
6, the making method of coil of electronic expansion valve according to claim 1 is characterized in that: described positioning cards is
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100493353A CN100347477C (en) | 2005-03-11 | 2005-03-11 | Manufacturing method for coil of electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100493353A CN100347477C (en) | 2005-03-11 | 2005-03-11 | Manufacturing method for coil of electronic expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1831410A true CN1831410A (en) | 2006-09-13 |
| CN100347477C CN100347477C (en) | 2007-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100493353A Active CN100347477C (en) | 2005-03-11 | 2005-03-11 | Manufacturing method for coil of electronic expansion valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN100347477C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361376A (en) * | 2011-10-14 | 2012-02-22 | 吴俊云 | Method for manufacturing electronic expansion valve coil |
| CN103187138A (en) * | 2013-03-22 | 2013-07-03 | 诸暨万畅磁电科技有限公司 | Coil structure |
| CN103219125A (en) * | 2013-04-25 | 2013-07-24 | 艾通电磁技术（昆山）有限公司 | Printed circuit board (PCB) assembling structure of alternating-current-direct-current electromagnet |
| CN103840580A (en) * | 2012-11-27 | 2014-06-04 | 浙江三花股份有限公司 | Electromagnetic coil and framework and manufacturing method thereof |
| WO2015043536A1 (en) * | 2013-09-30 | 2015-04-02 | 浙江三花股份有限公司 | Electronic expansion valve and coil device for same |
| CN104517698A (en) * | 2013-09-30 | 2015-04-15 | 浙江三花股份有限公司 | Electronic expansion valve and coil device thereof |
| CN106158227A (en) * | 2016-08-30 | 2016-11-23 | 贵州新安航空机械有限责任公司 | A kind of electromagnetic valve coil skeleton structure |
| CN113969821A (en) * | 2020-07-24 | 2022-01-25 | 安徽威灵汽车部件有限公司 | Electronic water pump and vehicle |
| CN114833992A (en) * | 2022-05-19 | 2022-08-02 | 安徽阿斯通电气有限公司 | Split type preparation process of electronic expansion valve coil and electronic expansion valve coil using split type preparation process |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE152648T1 (en) * | 1993-08-23 | 1997-05-15 | Danfoss As | VALVE, IN PARTICULAR EXPANSION VALVE FOR REFRIGERANT SYSTEMS, AND METHOD FOR THE PRODUCTION THEREOF |
| US6062484A (en) * | 1998-05-20 | 2000-05-16 | Eaton Corporation | Modular thermal expansion valve and cartridge therefor |
| DE19846226C2 (en) * | 1998-10-07 | 2002-07-11 | Emerson Electric Gmbh | valve assembly |
| CN2619215Y (en) * | 2003-04-28 | 2004-06-02 | 浙江三花股份有限公司 | Inner package coil structure of electronic expansion valve |
-
2005
- 2005-03-11 CN CNB2005100493353A patent/CN100347477C/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102361376A (en) * | 2011-10-14 | 2012-02-22 | 吴俊云 | Method for manufacturing electronic expansion valve coil |
| CN103840580A (en) * | 2012-11-27 | 2014-06-04 | 浙江三花股份有限公司 | Electromagnetic coil and framework and manufacturing method thereof |
| CN103187138A (en) * | 2013-03-22 | 2013-07-03 | 诸暨万畅磁电科技有限公司 | Coil structure |
| CN103219125A (en) * | 2013-04-25 | 2013-07-24 | 艾通电磁技术（昆山）有限公司 | Printed circuit board (PCB) assembling structure of alternating-current-direct-current electromagnet |
| WO2015043536A1 (en) * | 2013-09-30 | 2015-04-02 | 浙江三花股份有限公司 | Electronic expansion valve and coil device for same |
| CN104517698A (en) * | 2013-09-30 | 2015-04-15 | 浙江三花股份有限公司 | Electronic expansion valve and coil device thereof |
| KR20160045841A (en) * | 2013-09-30 | 2016-04-27 | 쯔지앙 산화 컴퍼니 리미티드 | Electronic expansion valve and coil device for same |
| CN104517698B (en) * | 2013-09-30 | 2017-08-25 | 浙江三花智能控制股份有限公司 | A kind of electric expansion valve and its coil device |
| KR101857532B1 (en) * | 2013-09-30 | 2018-06-19 | 쯔지앙 산화 인텔리전트 컨트롤스 씨오., 엘티디. | Electronic expansion valve and coil device for same |
| CN106158227A (en) * | 2016-08-30 | 2016-11-23 | 贵州新安航空机械有限责任公司 | A kind of electromagnetic valve coil skeleton structure |
| CN113969821A (en) * | 2020-07-24 | 2022-01-25 | 安徽威灵汽车部件有限公司 | Electronic water pump and vehicle |
| CN114833992A (en) * | 2022-05-19 | 2022-08-02 | 安徽阿斯通电气有限公司 | Split type preparation process of electronic expansion valve coil and electronic expansion valve coil using split type preparation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100347477C (en) | 2007-11-07 |
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Address after: 312500 Shaoxing City, Zhejiang province Xinchang Qixing street under the Liquan Patentee after: Zhejiang three flower intelligent control Limited by Share Ltd Address before: 312500 Zhejiang County in Xinchang Province town of Liquan Patentee before: Zhejiang Sanhua Group Co., Ltd. |