CN102654209A - Coil of electronic expansion valve and electronic expansion valve using same - Google Patents
Coil of electronic expansion valve and electronic expansion valve using same Download PDFInfo
- Publication number
- CN102654209A CN102654209A CN2011100571589A CN201110057158A CN102654209A CN 102654209 A CN102654209 A CN 102654209A CN 2011100571589 A CN2011100571589 A CN 2011100571589A CN 201110057158 A CN201110057158 A CN 201110057158A CN 102654209 A CN102654209 A CN 102654209A
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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 invention relates to a coil of a stepping motor and an electronic expansion valve using the same, belonging to the technical field of refrigeration control. The coil of the electronic expansion valve comprises a first winding (8), a second winding (7), an upper cover body (1), a lower cover body (2), a control line connection body (6), a lower pole plate (3b) matched with the first winding (8), and an upper pole plate (4a) matched with the second winding (7). The coil of the electronic expansion valve is characterized in that the bottom (23) of the lower cover body (2) forms a clamp fixing part in a stamping mode. According to the invention, by improving the structure of a micro stepping motor in the prior art, omitting a positioning component and simplifying the technology, the using reliability of the product is improved, and the cost is lowered.
Description
Technical field
The invention belongs to refrigeration control technique field, relate to a kind of coil and the electric expansion valve that uses this coil of electric expansion valve.
Background technique
Electric expansion valve is by the rotation of pulse input power supply control magnet rotor assembly; Realize spool moving through switching mechanism again with respect to valve port; Regulate the size of open amount with this, electric expansion valve is usually used in the air-conditioning system, as the flow of refrigeration agent in the throttling control element control system.The coil of the electric expansion valve of existing technology promptly is the disclosed structure of patent of 200420090242 " stepper motor in seal loop construction " like the patent No..Particularly, Figure 10 is the electric expansion valve structural drawing of existing technology, and Figure 11 is the plan view of the coil of electronic expansion valve of existing technology.Coil of electronic expansion valve comprises that 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 are fixing; The top crown 4a of the second coiling group 7 ' and the second coiling group 7 ' are fixing, are integrally formed the encapsulated groups component 9 of structure after the embedding of above-mentioned part process epoxy resin.Upper outlet body 1 is provided with utmost point tooth portion, lower cover 2 ' is provided with utmost point tooth portion.In assembly process, upper outlet body 1 is inserted in encapsulated groups component 9 wherein and the location with lower cover 2 ', and is through welding, like laser bonding etc. that upper outlet body 1 and lower cover 2 ' is affixed.
Electric expansion valve comprises valve bonnet 103, places rotor 102 and the spool 105 in the valve bonnet 103 and places the coil 101 outside the valve bonnet 103; Valve body 104 constitutes one with valve bonnet 103 welding; On valve body 104, also be welded with coil mounting plate 5 ', coil 101 is fixed on the valve body through this coil mounting plate 5, and coil stationary plate 106 is weldingly fixed on the lower cover 2 '; Install and fix on the coil mounting plate 5 ' on the valve body through the coil of coil stationary plate 106, constitute overall structure electric expansion valve.
In the prior art, the end face that need combine with lower cover 2 ' at coil fixed plate 106 is implemented welding (like spot welding etc.), and coil stationary plate 106 is fixed on the lower cover 2 '.Because the loop construction of the type is compact, it is complicated to implement welding procedure, is unfavorable for that simplification improves and keep reliability of products.
So, through architecture advances, reduce welding process to improve reliability of products and to simplify assembly technology to the electric expansion valve motor coil of existing technology, be those skilled in the art the direction of the technological improvement that will consider.
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 lower polar plate that closes with the said first coiling assembly and the top crown that closes with the said second coiling assembly; It is characterized in that the bottom of said lower cover forms the portion that connects and fixes through impact style.
Further, like the coil of above-mentioned electric expansion valve, said connecting and fixing also has guide portion in the portion;
Preferably, said have and the said corresponding spacing preiection of portion that connects and fixes on the coiling group down;
Further, said have and the said corresponding limiting stopper of portion that connects and fixes on the coiling group down, and particularly, said spacing preiection and limiting stopper are arranged in the opening of lower cover, and preferably, the said portion of connecting and fixing is two, and with axial symmetry;
Further, like the coil of above-mentioned electric expansion valve, said connecting and fixing also has limited part in the portion, and preferably, the said portion of connecting and fixing is four, and with axial symmetry.
The invention also discloses a kind of electric expansion valve simultaneously; This electric expansion valve comprises valve bonnet, places said valve bonnet interior rotor and spool, places the outer coil of said valve bonnet, constitutes the valve body of one and be fixed on the coil mounting plate on the said valve body with said valve bonnet welding; It is characterized in that said coil uses the coil of said structure.
Further, like above-mentioned electric expansion valve, said coil mounting plate is provided with and the said corresponding restraining groove of portion that connects and fixes.
The present invention has cancelled the coil stationary plate to simplify technology through the microminiature stepper motor architecture advances to existing technology, has improved the operational safety of product and has reduced cost.
Description of drawings
Fig. 1: the plan view of electric expansion valve of the present invention;
Fig. 2: the plan view and the worm's eye view of coil of electronic expansion valve first specific embodiment of the present invention;
Fig. 3: on coil of electronic expansion valve among Fig. 2 is removed/worm's eye view behind the lower cover;
Fig. 4: the plan view of the lower cover of electric expansion valve and worm's eye view among first embodiment;
Fig. 5: the plan view of the valve body mounting plate of electric expansion valve and pitching view among first embodiment;
Fig. 6: the plan view of the electric expansion valve among second embodiment;
Fig. 7: the plan view and the worm's eye view of the coil of electronic expansion valve in second specific embodiment that the present invention provides;
Fig. 8: the plan view of the lower cover of electric expansion valve and worm's eye view among second embodiment;
Fig. 9: the plan view of the valve body mounting plate of electric expansion valve and pitching view among second embodiment;
Figure 10: the electric expansion valve structural drawing of existing technology;
Figure 11: the plan view of the coil of electronic expansion valve of existing technology.
Symbol description among the figure:
1-upper outlet body, 11-locating aperture;
2/2A/2 '-lower cover;
21-locating aperture, 23-bottom;
201/206-connects and fixes portion;
202-guide portion, 203-opening;
208-limited part, 209-stop part;
The lower polar plate of the 3b-first coiling group;
The top crown of the 4a-second coiling group;
5/5A/5 '-coil mounting plate;
51-restraining groove, 52-perimembranous outer rim;
6-guide line connecting body;
The 8-first coiling group, 7/7 '-the second coiling group;
71-limiting stopper, 72-spacing preiection;
The 701-inner side surface;
9-encapsulated groups component;
The 100-electric expansion valve;
101-coil, 102-rotor;
103-valve bonnet, 104-valve body;
105-spool, 106-coil stationary plate;
107-valve port, 108-mesopore.
Embodiment
The plan view of the electric expansion valve that Fig. 1 provides for the present invention.As shown in Figure 1.Electric expansion valve 100 comprises valve bonnet 103, places rotor 102 and the spool 105 in the valve bonnet 103 and places the coil 101 outside the valve bonnet 103; Valve body 104 constitutes one with valve bonnet 103 welding; On valve body 104, also be welded with coil mounting plate 5, coil 101 is fixed on the valve body 104 through this coil mounting plate 5.
Fig. 2 is the 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 processed comprises the end and the utmost point tooth 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 processed comprises the end and the utmost point tooth portion of ring-type; The top crown 4a of the lower polar plate 3b of the first coiling group 8 and the second coiling group 7 realizes the location (not shown) through jog is set, and guide line connecting body 6 is drawn the enameled cable on the first coiling group 8 and the second coiling group 7.Can the first coiling group 8 behind the above-mentioned mutual location, the second coiling group 7, lower polar plate 3b, top crown 4a and guide line connecting body 6 be carried out the encapsulated groups component 9 that the epoxy resin embedding is integrally formed structure through tooling device integral body like this.After upper outlet body 1 is implemented with following upper outlet body 2 engaging encapsulated groups components 9 backs, fixing to form coil component 101 through welding.
Fig. 3 is that the coil among Fig. 2 is removed/worm's eye view behind the lower cover; Fig. 4 is the plan view and the worm's eye view of the lower cover of coil.
Like Fig. 3 and shown in Figure 4, and combine Fig. 2.In this embodiment; The bottom 23 of lower cover 2 is that symmetry adopts impact style to process two openings 203 with the 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, and the both sides in the portion of connecting and fixing 201 further constitute two fin structures as guide portion 202 through the material bending.
At the lower bottom part of following coiling group 7, 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 the lower cover 2 with axle, all is arranged in lower cover 2 openings 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 the 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 upper edges circumferentially are provided with three groups of positioning grooves 51 (2 every group with axial symmetry), and every group of positioning groove 51 is corresponding with convexity 72 positions of following 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 following 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 following coiling group 7; The angle that rotation mounting plate 5 is certain makes that wherein one group of positioning groove 51 is corresponding with convexity 72 positions of following coiling group 7.In this embodiment, according to different system's needs, coil can be realized three precalculated positions.
Constitute guide portion 202 owing to be provided with the material bending on protruding 201 both sides, institute is so that above-mentioned rotation is easy to realization.The protruding height of the bending 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, receives the mounting plate 5 that suitable deformation force connects and fixes coil so connect and fix the material of portion 201.
Fig. 6 is the plan view of the electric expansion valve in the second embodiment of the present invention; The plan view and the worm's eye view of the coil of electronic expansion valve in second specific embodiment that Fig. 7 provides for the present invention; Fig. 8 is the plan view and the worm's eye view of the lower cover of electric expansion valve among second embodiment; Fig. 9 is the plan view and the pitching view of the valve body mounting plate of electric expansion valve among second embodiment.
Like Fig. 6, Fig. 7, Fig. 8 and shown in Figure 9.Different with first embodiment is; In a second embodiment; The bottom of lower cover 2A adopts die stamping mode to go out the flange with 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, and the both sides of its flange are as the circumferential limited part 208 of coil mounting plate 5A, and the inboard of its flange can be used as the outer rim stop part 209 of mounting plate 5A.
In assembly process; Mounting plate 5A and valve body 104 welding constitute valve component; After valve bonnet 103 being inserted into the mesopore 108 of coil 101; Again last four of lower cover 2A is connected and fixed one group of four groove 51A that portion 206 places mounting plate 5A, its groove 51A and the circumferential limited part that connects and fixes portion 206 208 location use external force will connect and fix portion 206 (flange) bending and implement fixing.
Below only be for setting forth the preferred implementation that technological scheme of the present invention is given an example; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some improvement and retouching, all these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
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 that cooperates with the said first coiling group (8) and the top crown that cooperates with the said second coiling group (7); It is characterized in that the bottom of said lower cover 2 (23) form the portion that connects and fixes through impact style.
2. the coil of electric expansion valve according to claim 1 is characterized in that, said connecting and fixing also has guide portion (202) in the portion.
3. the coil of electric expansion valve according to claim 1 and 2 is characterized in that, said have and the said corresponding spacing preiection of portion (72) that connects and fixes on the coiling group (7) down.
4. the coil of electric expansion valve according to claim 3 is characterized in that, said have and the said corresponding limiting stopper of portion (71) that connects and fixes on the coiling group (7) down
5. the coil of electric expansion valve according to claim 4 is characterized in that, said spacing preiection (72) and limiting stopper (71) are arranged in the opening of lower cover 2.
6. the coil of electric expansion valve according to claim 4 is characterized in that, the said portion of connecting and fixing is two, and with axial symmetry.
7. the coil of electric expansion valve according to claim 1 is characterized in that, said connecting and fixing also has limited part (208) in the portion.
8. the coil of electric expansion valve according to claim 7 is characterized in that, the said portion of connecting and fixing is four, and with axial symmetry.
9. electric expansion valve; Comprise valve bonnet (103), place said valve bonnet (103) interior rotor (102) and spool (105), place the outer coil (101) of said valve bonnet (103), constitute the valve body (104) of one and be fixed on the coil mounting plate (5) on the said valve body (104) with said valve bonnet (103) welding; It is characterized in that said coil (101) uses the described arbitrary coil of claim 1-8.
10. electric expansion valve according to claim 9 is characterized in that, said coil mounting plate (5) is provided with and the said corresponding restraining groove of portion that connects and fixes.
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 true CN102654209A (en) | 2012-09-05 |
| CN102654209B CN102654209B (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| Country | Link |
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| CN (1) | CN102654209B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276273A (en) * | 2014-07-24 | 2016-01-27 | 陈俊 | Novel electronic expansion valve |
| CN105318080A (en) * | 2014-07-29 | 2016-02-10 | 杭州三花研究院有限公司 | Electronic expansion valve, motor coil, circuit board assembly and glue filling method |
| CN110388493A (en) * | 2019-06-26 | 2019-10-29 | 格力电器（合肥）有限公司 | A kind of electric expansion valve |
| CN110388493B (en) * | 2019-06-26 | 2024-06-07 | 格力电器（合肥）有限公司 | Electronic expansion valve |
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| JP2003028332A (en) * | 2001-07-19 | 2003-01-29 | Saginomiya Seisakusho Inc | Waterproof cover structure of flow control valve |
| CN1789768A (en) * | 2004-12-14 | 2006-06-21 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| JP2008291985A (en) * | 2007-05-28 | 2008-12-04 | Fuji Koki Corp | Rotor central body for motor operated valve, rotor feed screw, and rotor manufacturing method |
| CN101493156A (en) * | 2008-01-25 | 2009-07-29 | 浙江三花股份有限公司 | Electric Valve |
| 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 |
| 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 |
| 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 |
-
2011
- 2011-03-03 CN CN201110057158.9A patent/CN102654209B/en active Active
Patent Citations (7)
| 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 |
| CN1789768A (en) * | 2004-12-14 | 2006-06-21 | 浙江三花制冷集团有限公司 | Electronic expansion valve |
| JP2008291985A (en) * | 2007-05-28 | 2008-12-04 | Fuji Koki Corp | Rotor central body for motor operated valve, rotor feed screw, and rotor manufacturing method |
| CN101493156A (en) * | 2008-01-25 | 2009-07-29 | 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 |
| 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 |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276273A (en) * | 2014-07-24 | 2016-01-27 | 陈俊 | Novel electronic expansion valve |
| CN105318080A (en) * | 2014-07-29 | 2016-02-10 | 杭州三花研究院有限公司 | Electronic expansion valve, motor coil, circuit board assembly and glue filling method |
| CN110388493A (en) * | 2019-06-26 | 2019-10-29 | 格力电器（合肥）有限公司 | A kind of electric expansion valve |
| CN110388493B (en) * | 2019-06-26 | 2024-06-07 | 格力电器（合肥）有限公司 | Electronic expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102654209B (en) | 2016-01-06 |
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| CP03 | Change of name, title or address |
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. |