CN102654209B - A kind of coil of electric expansion valve and the electric expansion valve of this coil of use - Google Patents
A kind of coil of electric expansion valve and the electric expansion valve of this coil of use Download PDFInfo
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- CN102654209B CN102654209B CN201110057158.9A CN201110057158A CN102654209B CN 102654209 B CN102654209 B CN 102654209B CN 201110057158 A CN201110057158 A CN 201110057158A CN 102654209 B CN102654209 B CN 102654209B
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- coil
- expansion valve
- electric expansion
- coiling group
- lower cover
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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
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Abstract
The present invention relates to a kind of coil of stepper motor and use the electric expansion valve of this coil, belong to refrigeration control technical field, the coil of its electric expansion valve comprises the first coiling group (8), second coiling group (7), upper outlet body (1), lower cover (2), guide line connecting body (6), and the lower polar plate (3b) to coordinate with described first coiling group (8) and the top crown (4a) coordinated with described second coiling group (7), it is characterized in that, the bottom (23) of described lower cover 2 is formed by impact style and connects and fixes portion, the present invention is by improving the microminiature stepping motor structure of prior art, cancel positioning element and Simplified flowsheet, improve the operational safety of product and reduce cost.
Description
Technical field
The invention belongs to refrigeration control technical field, relate to a kind of coil of electric expansion valve and use the electric expansion valve of this coil.
Background technique
Electric expansion valve is rotated by Puled input Energy control magnetic rotor component, the movement of spool relative to valve port is realized again by switching mechanism, regulate the size of open amount with this, electric expansion valve is usually used in air-conditioning system, as the flow of refrigeration agent in throttling control element control system.The coil of the electric expansion valve of prior art, namely as the patent No. be 200420090242 " the interior encapsulating coil structure of stepper motor " patent disclosed in structure.Particularly, Figure 10 is the electronic expansion valve structure figure of prior art, Figure 11 is the plan view of the coil of electronic expansion valve of prior art.Coil of electronic expansion valve comprises the lower polar plate 3b of the first coiling group 8 and the second coiling group 7 ', the first coiling group 8 and the first coiling group 8 is fixed; Top crown 4a and the second coiling group 7 ' of the second coiling group 7 ' are fixed, and above-mentioned part forms the encapsulated groups component 9 of integrative-structure after epoxy resin encapsulated.Upper outlet body 1 is provided with on pole teeth portion, lower cover 2 ' and is provided with pole teeth portion.In assembly process, encapsulated groups component 9 is inserted in wherein and locates by upper outlet body 1 and lower cover 2 ', by welding, as laser bonding etc. by upper outlet body 1 and lower cover 2 ' affixed.
The coil 101 that electric expansion valve comprises valve bonnet 103, be placed in rotor 102 in valve bonnet 103 and spool 105 and be placed in outside valve bonnet 103, valve body 104 welds with valve bonnet 103 and is integrally formed, valve body 104 is also welded with coil mounting plate 5 ', coil 101 is fixed on valve body by this coil mounting plate 5, coil mounting plate 106 is weldingly fixed on lower cover 2 ', by coil mounting plate 106, the installation of the coil of electric expansion valve is fixed on the coil mounting plate 5 ' on valve body, forms overall structure.
In the prior art, need the end face combined at coil mounting plate 106 and lower cover 2 ' to implement to weld (as spot welding etc.), coil mounting plate 106 is fixed on lower cover 2 '.Because the loop construction of the type is compact, implement welding procedure complicated, be unfavorable for that simplification improves and maintains the reliability of product.
So by the architecture advances of the electric expansion valve motor coil to prior art, reducing welding process to improve the reliability of product and to simplify assembly technology, is the direction of the technological improvement that those skilled in the art will consider.
Summary of the invention
For this reason, the invention discloses a kind of coil of electric expansion valve, this coil comprises the first coiling group, the second coiling group, upper outlet body, lower cover, guide line connecting body and the lower polar plate closed with described first coiling assembly and the top crown closed with described second coiling assembly, it is characterized in that, the bottom of described lower cover is formed by impact style and connects and fixes portion.
Further, as the coil of above-mentioned electric expansion valve, described in connect and fix in portion and also there is guide portion;
Preferably, described second coiling group has connect and fix the corresponding spacing preiection in portion with described;
Further, described second coiling group has and connects and fixes the corresponding limiting stopper in portion with described, particularly, described spacing preiection and limiting stopper are arranged in the opening of lower cover, preferably, described in the portion of connecting and fixing be two, and with axial symmetry;
Further, as the coil of above-mentioned electric expansion valve, described in connect and fix in portion and also there is limited part, preferably, described in the portion of connecting and fixing be four, and with axial symmetry.
The invention also discloses a kind of electric expansion valve simultaneously, this electric expansion valve comprises valve bonnet, rotor and spool, the coil be placed in outside described valve bonnet be placed in described valve bonnet, weld the valve body be integrally formed and the coil mounting plate be fixed on described valve body with described valve bonnet, it is characterized in that, described coil uses the coil of said structure.
Further, as above-mentioned electric expansion valve, described coil mounting plate is provided with and connects and fixes the corresponding restraining groove in portion with described.
The present invention, by improving the microminiature stepping motor structure of prior art, eliminates coil mounting plate with Simplified flowsheet, improves the operational safety of product and reduces cost.
Accompanying drawing explanation
Fig. 1: the plan view of electric expansion valve of the present invention;
Fig. 2: the plan view of coil of electronic expansion valve first specific embodiment of the present invention and worm's eye view;
Coil of electronic expansion valve in Fig. 3: Fig. 2 removes the worm's eye view after up/down cover body;
The plan view of the lower cover of electric expansion valve and worm's eye view in Fig. 4: the first embodiment;
The plan view of the valve body mounting plate of electric expansion valve and pitching view in Fig. 5: the first embodiment;
The plan view of the electric expansion valve in the Fig. 6: the second embodiment;
Fig. 7: the plan view of the coil of electronic expansion valve in the second specific embodiment that the present invention provides and worm's eye view;
The plan view of the lower cover of electric expansion valve and worm's eye view in Fig. 8: the second embodiment;
The plan view of the valve body mounting plate of electric expansion valve and pitching view in Fig. 9: the second embodiment;
Figure 10: the electronic expansion valve structure figure of prior art;
Figure 11: the plan view of the coil of electronic expansion valve of prior art.
Symbol description in figure:
1-upper outlet body, 11-locating aperture;
2/2A/2 '-lower cover;
Bottom 21-locating aperture, 23-;
201/206-connects and fixes portion;
202-guide portion, 203-opening;
208-limited part, 209-stop part;
The lower polar plate of 3b-first coiling group;
The top crown of 4a-second coiling group;
5/5A/5 '-coil mounting plate;
51-restraining groove, 52-perimembranous outer rim;
6-guide line connecting body;
8-first coiling group, 7/7 '-the second coiling group;
71-limiting stopper, 72-spacing preiection;
701-inner side surface;
9-encapsulated groups component;
100-electric expansion valve;
101-coil, 102-rotor;
103-valve bonnet, 104-valve body;
105-spool, 106-coil mounting plate;
107-valve port, 108-mesopore.
Embodiment
Fig. 1 is the plan view of the electric expansion valve that the present invention provides.As shown in Figure 1.The coil 101 that electric expansion valve 100 comprises valve bonnet 103, be placed in rotor 102 in valve bonnet 103 and spool 105 and be placed in outside valve bonnet 103, valve body 104 welds with valve bonnet 103 and is integrally formed, valve body 104 is also welded with coil mounting plate 5, and coil 101 is fixed on valve body 104 by this coil mounting plate 5.
Rotor 102 and coil 101 are equivalent to the stepper motor in electronic expansion valve structure, external control pulse signal is introduced by coil 101, trigger the rotation of rotor 102, again by the effect of nut/screw drive mechanism, spool 105 is moved up and down, with the openings of sizes of the valve port 107 on control valve body while rotation.
Fig. 2 is plan view and the worm's eye view of coil of electronic expansion valve first specific embodiment of the present invention.As shown in Figure 2.The coil 101 of electric expansion valve comprises the first coiling group 8 and the second coiling group 7 (its " coiling group " is made up of coiling enameled cable on plastic skeleton).The lower polar plate 3b of the first coiling group 8 that the punching press of magnetic conductive metal sheet material is made comprises end and the pole teeth portion of ring-type, equally, the top crown 4a of the second coiling group 7 that the punching press of magnetic conductive metal sheet material is made comprises end and the pole teeth portion of ring-type, the lower polar plate 3b of the first coiling group 8 and top crown 4a of the second coiling group 7 realizes locating (not shown) by arranging jog, and the enameled cable in the first coiling group 8 and the second coiling group 7 is drawn by guide line connecting body 6.By the first coiling group 8, second coiling group 7 behind above-mentioned mutual location, lower polar plate 3b, top crown 4a and guide line connecting body 6, can carry out by tooling device entirety the encapsulated groups component 9 that epoxy resin encapsulated forms integrative-structure like this.After upper outlet body 1 and lower upper outlet body 2 are implemented after engaging encapsulated groups component 9, by being welded and fixed to form coil component 101.
Fig. 3 is the worm's eye view after the coil removal up/down cover body in Fig. 2; Fig. 4 is plan view and the worm's eye view of the lower cover of coil.
As shown in Figure 3 and Figure 4, and composition graphs 2.In this embodiment, the bottom 23 of lower cover 2 is that symmetry adopts impact style to process two openings 203 with axle, the material bending of former aperture position is protruding, its crowning forms the portion that connects and fixes 201 of coil of electronic expansion valve mounting plate 5, connect and fix the both sides in portion 201, form two fin structures as guide portion 202 further by material bending.
At the lower bottom part of the second coiling group 7, with axle for being symmetrically formed two spacing preiections 72 and two limiting stoppers 71, the position of its spacing preiection 72 and limiting stopper 71 is corresponding with the portion that connects and fixes 201 on lower cover 2, is all arranged in lower cover 2 opening 203.Spacing preiection 72 slightly exceeds the bottom 23 of lower cover 2, and limiting stopper 71 exceeds the bottom 23 of lower cover 2 and abuts to the portion of connecting and fixing 201.
Fig. 5 is plan view and the pitching view of the coil mounting plate of above-mentioned electric expansion valve.As shown in Figure 5.Mounting plate 5 is circumferentially arranged three groups of positioning grooves 51 (often organizing 2 with axial symmetry), often organize positioning groove 51 corresponding with projection 72 position of the second coiling group 7; The perimembranous outer rim 52 of mounting plate 5 is corresponding with the inner side surface 701 of the limiting stopper 71 of the second coiling group 7 simultaneously.Be fixed in the assembly process of valve body at coil like this, after valve bonnet 103 being inserted into the mesopore 108 of coil 101, the perimembranous outer rim 52 of mounting plate 5 is corresponding with the inner side surface 701 of the limiting stopper 71 of the second coiling group 7, rotate the angle that mounting plate 5 is certain, make wherein one group of positioning groove 51 corresponding with projection 72 position of the second coiling group 7.In this embodiment, according to different system needs, coil can realize three precalculated positions.
Guide portion 202 is formed, so make above-mentioned rotation be easy to realize owing to being provided with material bending on the both sides of protruding 201.The height of the bending projection of lower cover 2 is slightly less than the thickness of mounting plate 5 simultaneously, and spacing preiection 72 slightly exceeds the bottom 23 of lower cover 2, so the material connecting and fixing portion 201 is subject to the mounting plate 5 that suitable deformation force connects and fixes coil.
Fig. 6 is the plan view of the electric expansion valve in the second embodiment of the present invention; Fig. 7 is plan view and the worm's eye view of coil of electronic expansion valve in the second specific embodiment of providing of the present invention; Fig. 8 is plan view and the worm's eye view of the lower cover of electric expansion valve in the second embodiment; Fig. 9 is plan view and the pitching view of the valve body mounting plate of electric expansion valve in the second embodiment.
As shown in Fig. 6, Fig. 7, Fig. 8 and Fig. 9.With the first embodiment unlike, in a second embodiment, the bottom of lower cover 2A adopts die stamping mode to go out with the flange of axisymmetric four openings, this flange is as the portion that connects and fixes 206 of the mounting plate 5A of coil of electronic expansion valve, the both sides of its flange are as the circumferential limited part 208 of coil mounting plate 5A, and the inner side of its flange can be used as the outer rim stop part 209 of mounting plate 5A.
Coil mounting plate 5A is circumferentially arranged many group positioning groove 51A (often organizing 4 with axial symmetry), the width dimensions often organizing positioning groove 51A is consistent with the both sides 208 spacing size connecting and fixing portion 206 (flange), and the perimembranous outer rim 52A of mounting plate 5A is corresponding with inner side (stop part 209) position connecting and fixing portion 206 (flange) simultaneously.
In assembly process, mounting plate 5A welds with valve body 104 and forms valve component, after valve bonnet 103 being inserted into the mesopore 108 of coil 101, again upper for lower cover 2A four are connected and fixed one group of four groove 51A that portion 206 is placed in mounting plate 5A, its groove 51A locates with the circumferential limited part 208 connecting and fixing portion 206, uses external force will connect and fix portion 206 (flange) bending and implements fixing.
Below be only the preferred implementation exemplified for technological scheme of the present invention can better be set forth; should be understood 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, all these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1. the coil of an electric expansion valve, comprise the first coiling group (8), the second coiling group (7), upper outlet body (1), lower cover (2), guide line connecting body (6) and the lower polar plate coordinated with described first coiling group (8) and the top crown coordinated with described second coiling group (7), it is characterized in that, the bottom (23) of described lower cover (2) is that symmetry processes two openings (203) by impact style with axle, make the material bending of aperture position protruding, its crowning is formed and connects and fixes portion (201); Described connecting and fixing in portion (201) also has on the described both sides connected and fixed in portion (201), further by the guide portion (202) that material bending is formed.
2. the coil of electric expansion valve according to claim 1, is characterized in that, described second coiling group (7) has and connects and fixes the corresponding spacing preiection in portion (72) with described.
3. the coil of electric expansion valve according to claim 2, is characterized in that, described second coiling group (7) has and connects and fixes the corresponding limiting stopper in portion (71) with described.
4. the coil of electric expansion valve according to claim 3, is characterized in that, described spacing preiection (72) and limiting stopper (71) are arranged in the opening of lower cover (2).
5. the coil of electric expansion valve according to claim 1, is characterized in that, described in connect and fix in portion also there is limited part (208).
6. the coil of electric expansion valve according to claim 5, is characterized in that, described in the portion of connecting and fixing be four, and with axial symmetry.
7. an electric expansion valve, comprise valve bonnet (103), rotor (102) and the spool (105) be placed in described valve bonnet (103), be placed in described valve bonnet (103) coil outward (101), weld the valve body (104) be integrally formed and the coil mounting plate (5) be fixed on described valve body (104) with described valve bonnet (103), it is characterized in that, described coil (101) uses the coil described in any one of claim 1-6.
8. electric expansion valve according to claim 7, is characterized in that, described coil mounting plate (5) is provided with and connects and fixes the corresponding restraining groove in portion with described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110057158.9A CN102654209B (en) | 2011-03-03 | 2011-03-03 | A kind of coil of electric expansion valve and the electric expansion valve of this coil of use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110057158.9A CN102654209B (en) | 2011-03-03 | 2011-03-03 | A kind of coil of electric expansion valve and the electric expansion valve of this coil of use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102654209A CN102654209A (en) | 2012-09-05 |
| CN102654209B true CN102654209B (en) | 2016-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110057158.9A Active CN102654209B (en) | 2011-03-03 | 2011-03-03 | A kind of coil of electric expansion valve and the electric expansion valve of this coil of use |
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| CN (1) | CN102654209B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276273A (en) * | 2014-07-24 | 2016-01-27 | 陈俊 | Novel electronic expansion valve |
| CN105318080B (en) * | 2014-07-29 | 2019-11-01 | 浙江三花汽车零部件有限公司 | A kind of electric expansion valve, electrical-coil, circuit board assemblies and glue-pouring method |
| CN110388493B (en) * | 2019-06-26 | 2024-06-07 | 格力电器（合肥）有限公司 | Electronic expansion valve |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789768A (en) * | 2004-12-14 | 2006-06-21 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| CN101777408A (en) * | 2009-01-08 | 2010-07-14 | 浙江三花股份有限公司 | Processing method of coil device for solenoid valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003028332A (en) * | 2001-07-19 | 2003-01-29 | Saginomiya Seisakusho Inc | Waterproof cover structure of flow control valve |
| JP5060171B2 (en) * | 2007-05-28 | 2012-10-31 | 株式会社不二工機 | Rotor central body for motor-operated valve, rotor feed screw and rotor manufacturing method |
| CN101493156B (en) * | 2008-01-25 | 2011-06-01 | 浙江三花股份有限公司 | Electric Valve |
| CN201302888Y (en) * | 2008-08-08 | 2009-09-02 | 浙江三花股份有限公司 | Coil structure and electric control valve using the same |
| CN101504232A (en) * | 2009-03-12 | 2009-08-12 | 浙江盾安禾田金属有限公司 | Valve body and coil coupling structure of electronic expansion valve and electronic expansion valve |
-
2011
- 2011-03-03 CN CN201110057158.9A patent/CN102654209B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789768A (en) * | 2004-12-14 | 2006-06-21 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| CN101777408A (en) * | 2009-01-08 | 2010-07-14 | 浙江三花股份有限公司 | Processing method of coil device for solenoid valve |
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| Publication number | Publication date |
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| CN102654209A (en) | 2012-09-05 |
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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 County, Zhejiang Province under the streets of Liquan Village Patentee before: Zhejiang Sanhua Group Co., Ltd. |