CN104295786A - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN104295786A CN104295786A CN201310304556.5A CN201310304556A CN104295786A CN 104295786 A CN104295786 A CN 104295786A CN 201310304556 A CN201310304556 A CN 201310304556A CN 104295786 A CN104295786 A CN 104295786A
- Authority
- CN
- China
- Prior art keywords
- motor
- lead
- wire
- wire fixture
- expansion valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses an electronic expansion valve. The electronic expansion valve comprises a valve body and a motor arranged in the valve body. The valve body comprises a valve seat assembly and a shell component. The valve seat assembly comprises a valve seat and a cover. The two ends of the cover are fixedly connected with the shell component and the valve seat respectively through welding. The motor is arranged in the cover. The motor is provided with a lead fixing device positioning a motor lead. The lead fixing device is provided with a lead groove containing the motor lead, and a positioning part used for positioning the periphery of the motor. Accordingly, the lead of the electronic expansion valve is positioned in the lead fixing device, in the installing or transporting or using process, the lead cannot loosen or disengage from a varnished wire, and it is ensured that the performance of the motor is not affected. Meanwhile, a certain distance can be kept between the lead and the welding position through the restraint function of the lead fixing device, and the lead is prevented from being burned by the welding heat.
Description
Technical field
The present invention relates to valve body technical field, particularly a kind of electric expansion valve.
Background technique
Please refer to Fig. 1, Fig. 1 is a kind of structural representation of electric expansion valve.
Electric expansion valve comprises case member 13 and valve component, and valve component comprises valve seat 11 and cover cap 12, and cover cap 12 and case member 13 are welded and fixed, and motor 13 is placed in cover cap 12.The lead-in wire 141 of motor 14 is introduced from the top of valve body, and accesses the inside of motor 14 housing, and lead-in wire 141 accesses from the side of motor 14 housing.
There is following technical problem in this structure:
The first, in use, lead-in wire 141 easily loosens, and throws off, affect motor 14 performance with enameled cable;
The second, motor 14 is located in cover cap, when case member 13 and cover cap 12 weld, welding position 11a is near the side of motor 14 shell, the heat that welding produces will be passed to lead-in wire 141, especially when motor 14 is mounted to cover cap 12, the position of lead-in wire 141 is difficult to control, and easily near welding position 11a, causes lead-in wire 141 to be burnt.
In view of this, how preventing lead-in wire from loosening, avoid soldered heat to burn, is those skilled in the art's technical problems urgently to be resolved hurrily.
Summary of the invention
For solving the problems of the technologies described above, object of the present invention is for providing a kind of electric expansion valve.This electric expansion valve can prevent lead-in wire from loosening, and avoids the soldered heat burn that goes between.
Electric expansion valve provided by the invention comprises valve body and is arranged at the motor in described valve body, described valve body comprises valve component and case member, described valve component comprises valve seat and cover cap, the two ends of described cover cap are welded and fixed with described case member, described valve seat respectively, and described motor is placed in described cover cap;
Described motor is provided with the wire fixture of positioning motor lead-in wire, and described wire fixture has and holds the lead-in wire groove of motor down-lead, and the positioning part for locating with motor periphery.
For the electric expansion valve installed, wire fixture is positioned between motor periphery and cover cap (and case member), and lead-in wire is bound by the lead-in wire groove of wire fixture.So, lead-in wire is positioned in wire fixture, and in installation or transport, in using process, lead-in wire all can not be loose and depart from enameled cable, guarantees that motor performance is unaffected; And the constraint function of wire fixture makes lead-in wire can keep certain distance with welding position, avoid the soldered heat burn that goes between.In addition, valve seat and the cover cap of valve component are welded and fixed, and cover cap and case member are also welded and fixed, then whole electric expansion valve has good integrity, not easily leaks; Motor is placed in cover cap, after being also convenient to mounted motor, then is welded and fixed case member and valve component.
Preferably, described wire fixture has the penetration hole running through its inside and outside surface, and described penetration hole is communicated with described lead-in wire groove.
Preferably, described positioning part is be positioned at the draw-in groove bottom described wire fixture, and described draw-in groove can block the outer rim of motor bottom end cap.
Preferably, the outer surface that described wire fixture deviates from motor forms step, and step surface is arranged upward; This step is positioned at the top of described wire fixture.
Preferably, the inside and outside surperficial arc of described wire fixture is arranged, and suitable with the radian of motor outer surface.
Preferably, described wire fixture is made up of thermal-protective material.
Preferably, described wire fixture is made up of plastics or pottery.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of electric expansion valve;
Fig. 2 is the structural representation of a kind of embodiment of wire fixture provided by the present invention;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the schematic diagram of another angle of wire fixture in Fig. 2;
Fig. 5 is the worm's eye view of Fig. 4;
Fig. 6 is the structural representation that in Fig. 2, wire fixture is installed on motor;
Fig. 7 is the plan view of Fig. 6;
Fig. 8 is the plan view of Fig. 6;
Fig. 9 is the axial sectional view of the electric expansion valve being provided with motor in Fig. 6;
Figure 10 is the close-up schematic view at B position in Fig. 9;
Figure 11 is the plan view of Fig. 2;
Figure 12 is the front view of Fig. 4;
Figure 13 is the sectional view of Figure 12;
Figure 14 is the worm's eye view of Fig. 6.
In Fig. 1:
11 valve seats, 11a welding position, 12 case members, 13 motors, 131 lead-in wires
In Fig. 2-14:
Bottom 21 valve seats, 22 cover caps, 2a welding position, 3 case members, 4 motors, 41 bottom head covers, 42 top end cover, 43 lead-in wires, 4a wire fixture, 4a1 lead-in wire groove, 4a2 step, 4a3 penetration hole, 4a4 draw-in groove, 4a-1
Embodiment
In order to make those skilled in the art understand technological scheme of the present invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Please refer to the structural representation that Fig. 2-8, Fig. 2 is a kind of embodiment of wire fixture provided by the present invention; Fig. 3 is the plan view of Fig. 2; Fig. 4 is the schematic diagram of another angle of wire fixture in Fig. 2; Fig. 5 is the worm's eye view of Fig. 4; Fig. 6 is the structural representation that in Fig. 2, wire fixture is installed on motor; Fig. 7 is the plan view of Fig. 6; Fig. 8 is the plan view of Fig. 6.
This wire fixture 4a, be installed on the periphery of electric expansion valve motor 4, as shown in Fig. 6,8, the lead-in wire 43 of motor 4 extends to top along its top, and bending continues to extend to its periphery, generally introduce motor 4 enclosure interior in the approximate mid-section position of periphery.Top described in literary composition, bottom 4a-1 take Fig. 6 as visual angle, and when being mounted to electric expansion valve, bottom 4a-1 is near valve component, and top is away from valve component.
Wire fixture 4a have can hold motor 4 go between 43 lead-in wire groove 4a1, wire fixture 4a is installed on the periphery of motor 4, and lead-in wire 43 part namely extending to motor 4 periphery can stick in this lead-in wire groove 4a1.In order to prevent wire fixture 4a from departing from motor 4, wire fixture 4a is also arranged the positioning part being used for locating with motor 4 housing.
Please continue to refer to the axial sectional view that Fig. 9-10, Fig. 9 is the electric expansion valve being provided with motor in Fig. 6; Figure 10 is the close-up schematic view at B position in Fig. 9.
Electric expansion valve comprises valve component and case member 3, and valve component specifically comprises valve seat 21 and cover cap 22, and the two ends of cover cap 22 are welded and fixed with valve seat 21, case member 3 respectively.Motor 4 is mainly arranged in cover cap 22 inner chamber of valve component, and cover cap 22 end and case member 3 are welded and fixed, then the lead-in wire 43 of motor 4 periphery is near welding position 2a.For the electric expansion valve installed, wire fixture 4a is positioned between motor 4 periphery and cover cap 22 (and case member 3), and lead-in wire 43 is bound by the lead-in wire groove 4a1 of wire fixture 4a.Gap between motor 4 periphery and cover cap 22 is less, and wire fixture 4a can hold lead-in wire 43, therefore wire fixture 4a can be processed as platy structure, as shown in Figure 2.
So, lead-in wire 43 is positioned in wire fixture 4a, and in installation or transport, using process, lead-in wire 43 all can not be loose and depart from enameled cable, guarantees that motor 4 performance is unaffected; And the constraint function of wire fixture 4a makes lead-in wire 43 can keep certain distance with welding position 2a, avoid the soldered heat burn of lead-in wire 43.In addition, valve seat 21 and the cover cap 22 of valve component are welded and fixed, and cover cap 22 and case member 3 are also welded and fixed, then whole electric expansion valve has good integrity, not easily leaks; Motor 4 is placed in cover cap 22, after being also convenient to mounted motor 4, then is welded and fixed case member 3 and valve component.
Please continue to refer to 2-3, and understand in conjunction with Figure 11, Figure 11 is the plan view of Fig. 2, and the internal surface of wire fixture 4a is shown.
Herein, after namely internal surface is mounted to motor 4, wire fixture 4a towards the one side of motor 4 periphery, the one side (one side towards cover cap 22) of outer surface and wire fixture 4a motor 4 periphery dorsad.As can be seen from Figure, wire fixture 4a has the penetration hole 4a3 running through its inside and outside surface, and penetration hole 4a3 is communicated with lead-in wire groove 4a1, is equivalent to, and a cell wall of lead-in wire groove 4a1 offers through hole.
Lead-in wire 43 can be positioned at lead-in wire groove 4a1, and penetration hole 4a3 can provide certain holding space, when lead-in wire 43 radius of turn too small and go between be squeezed in groove 4a1 time, part lead-in wire 43 can be contained in penetration hole 4a3, concentrate to avoid the extruding stress that causes, and then prevent stress from concentrating damage to lead-in wire 43.
Please continue to refer to Fig. 2,6,11, and composition graphs 12-14 understands, and Figure 12 is the plan view of Fig. 4, and the outer surface of wire fixture 4a is shown; Figure 13 is the sectional view of Figure 12; Figure 14 is the worm's eye view of Fig. 6.
As previously mentioned, wire fixture 4a needs to arrange positioning part and is positioned motor 4, in order to avoid depart from displacement and cannot go between 43 by effective location.In the present embodiment, positioning part is the draw-in groove 4a4 being positioned at 4a-1 bottom wire fixture 4a, and this draw-in groove 4a4 can block the outer rim of motor 4 bottom head covers 41, as shown in Figure 6.Wire fixture 4a is now similar to the shape of buckle.
When installing wire fixture 4a, wire fixture 4a is snapped into lead-in wire 43 place of motor 4 periphery, to make lead-in wire 43 be limited in lead-in wire groove 4a1, meanwhile, bottom wire fixture 4a, the draw-in groove 4a4 of 4a-1 blocks the bottom head covers 41 of motor 4 just.Then wire fixture 4a cannot move up and down, and due to the interference of go between groove 4a1 and lead-in wire 43, wire fixture 4a also cannot move left and right; In addition, wire fixture 4a, between motor 4 periphery and cover cap 22, rationally arranges the thickness of wire fixture 4a, then wire fixture 4a can be limited between motor 4 periphery and cover cap 22, thus also not easily moves forward and backward, and reaches basic location object.
Draw-in groove 4a4 is arranged at the bottom 4a-1 of wire fixture 4a, to block the bottom head covers 41 of motor 4, the lead-in wire 43 at motor 4 top can not be interfered to access.Can expect, the orientation type of wire fixture 4a and bottom head covers 41 also may be used on top end cover 42.Such as, at wire fixture 4a top, draw-in groove 4a4 is set, so that it is also feasible for blocking top end cover 42, the positioning part just arranged at top needs to avoid lead-in wire 43, as Fig. 7 and in conjunction with 3 understandings, lead-in wire groove 4a1 without top cell wall, in order to avoid interfere with lead-in wire 43, namely the notch of lead-in wire groove 4a1 is towards lead-in wire 43, and its top is uncovered.Visible, when positioning part is arranged at the top of wire fixture 4a, corresponding design, difficulty of processing can higher than the technological schemes being arranged at bottom 4a-1.
Except above-mentioned draw-in groove 4a4, positioning part can also be other structures.Such as, directly clip is set at the bottom 4a-1 of wire fixture 4a, to clamp bottom head covers 41, for another example, is directly bonded in motor 4 periphery; Or 4a-1 adopts with bottom head covers 41 and is threaded bottom wire fixture 4a, certainly, this kind of mode needs to make change to motor 4.Those skilled in the art can also adopt other conventional orientation type positioning guidewire fixing device 4a and motor 4 periphery.
Understand please continue to refer to Figure 10,12-13, the outer surface that wire fixture 4a deviates from motor 4 can form step 4a2, and step 4a2 faces up setting, and this step 4a2 face is positioned at the top of wire fixture 4a.After this step 4a2 is set, the part that wire fixture 4a is positioned at below step 4a2 has thicker thickness, cover cap 22 can be fitted to be limited between motor 4 and cover cap 22, and step 4a2 has certain interval with upper part and cover cap 22, thus ensure that the lead-in wire 43 in lead-in wire groove 4a1 can possess certain gap with the case member 3 of metallic material, cover cap 22, make the heat conduction of weld joint become far away to the distance of lead-in wire groove 4a1, prevent welding heat from damaging lead-in wire 43 further.In addition, the part that below step 4a2 fits with cover cap 22 has gap h with welding position 2a, also guarantees that the wire fixture 4a fitted does not affect by welding position 2a.Lead-in wire 43 is generally positioned at the top of motor 4 periphery, and correspondingly, step 4a2 is also positioned at the top of wire fixture 4a.In Figure 13, step 4a2 face is that slope shape is arranged, and is convenient to processing on the one hand, on the other hand, under guarantee arranges the prerequisite in gap, does not affect the accommodating function of through hole.
For above-described embodiment, the inside and outside surface preferably curved setting of wire fixture 4a, and suitable with the radian of motor 4 outer surface.Case member 3 and cover cap 22 are generally all cylindrically arranged, and the gap between motor 4 periphery is also annular space, the wire fixture 4a that arc is arranged, this annular space can be in adaptedly, be convenient to install and location, also ensure that lead-in wire 43 can successfully be contained in lead-in wire groove 4a1.
As mentioned above, namely wire fixture 4a mono-critical function prevents welding heat burn lead-in wire 43, therefore the best of wire fixture 4a is made up of thermal-protective material, to strengthen effect of heat insulation, protects lead-in wire 43 better.Now, wire fixture 4a can be made up of plastics or pottery, and the heat-shielding performance of these two kinds of thermal-protective materials is good, and cost is lower.
Above a kind of electric expansion valve provided by the present invention is described in detail.Apply specific case herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.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 carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (7)
1. an electric expansion valve, comprise valve body and be arranged at the motor (4) in described valve body, it is characterized in that, described valve body comprises valve component and case member (3), described valve component comprises valve seat (21) and cover cap (22), the two ends of described cover cap (22) are welded and fixed with described case member (3), described valve seat (21) respectively, and described motor (4) is placed in described cover cap (22);
Described motor (4) is provided with the wire fixture (4a) of positioning motor (4) lead-in wire (43), described wire fixture (4a) has the lead-in wire groove (4a1) of accommodation motor (4) lead-in wire (43), and the positioning part for locating with motor (4) periphery.
2. electric expansion valve as claimed in claim 1, it is characterized in that, described wire fixture (4a) has the penetration hole (4a3) running through its inside and outside surface, and described penetration hole (4a3) is communicated with described lead-in wire groove (4a1).
3. electric expansion valve as claimed in claim 1, it is characterized in that, described positioning part is for being positioned at the draw-in groove (4a4) of described wire fixture (4a) bottom (4a-1), and described draw-in groove (4a4) can block the outer rim of motor (4) bottom head covers (41).
4. electric expansion valve as claimed in claim 1, is characterized in that, the outer surface that described wire fixture (4a) deviates from motor (4) forms step (4a2), and step surface is arranged upward; This step (4a2) is positioned at the top of described wire fixture (4a).
5. the electric expansion valve as described in any one of claim 1-4, is characterized in that, the inside and outside surperficial arc of described wire fixture (4a) is arranged, and suitable with the radian of motor (4) outer surface.
6. the electric expansion valve as described in any one of claim 1-4, is characterized in that, described wire fixture (4a) is made up of thermal-protective material.
7. electric expansion valve as claimed in claim 6, it is characterized in that, described wire fixture (4a) is made up of plastics or pottery.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304556.5A CN104295786B (en) | 2013-07-17 | 2013-07-17 | Electric expansion valve |
| EP13889373.0A EP3023679B1 (en) | 2013-07-17 | 2013-09-11 | Electronic expansion valve and manufacturing method therefor |
| JP2016526400A JP6163263B2 (en) | 2013-07-17 | 2013-09-11 | Electronic expansion valve and manufacturing method thereof |
| PCT/CN2013/083293 WO2015007013A1 (en) | 2013-07-17 | 2013-09-11 | Electronic expansion valve and manufacturing method therefor |
| US14/903,007 US9964227B2 (en) | 2013-07-17 | 2013-09-11 | Electronic expansion valve and manufacturing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310304556.5A CN104295786B (en) | 2013-07-17 | 2013-07-17 | Electric expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104295786A true CN104295786A (en) | 2015-01-21 |
| CN104295786B CN104295786B (en) | 2017-06-06 |
Family
ID=52315639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310304556.5A Active CN104295786B (en) | 2013-07-17 | 2013-07-17 | Electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104295786B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909863A (en) * | 2016-06-29 | 2016-08-31 | 博耐尔汽车电气系统有限公司 | Method for using expansion valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09264446A (en) * | 1996-03-28 | 1997-10-07 | Fuji Photo Film Co Ltd | Closing valve device and automatic developer |
| CN102840372A (en) * | 2011-06-23 | 2012-12-26 | 浙江三花股份有限公司 | Expansion valve and coil thereof |
| CN102853597A (en) * | 2011-06-27 | 2013-01-02 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN202978556U (en) * | 2012-11-30 | 2013-06-05 | 中山大洋电机股份有限公司 | Motor leading wire fixing clamp assembly and motor using motor leading wire fixing clamp assembly |
-
2013
- 2013-07-17 CN CN201310304556.5A patent/CN104295786B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09264446A (en) * | 1996-03-28 | 1997-10-07 | Fuji Photo Film Co Ltd | Closing valve device and automatic developer |
| CN102840372A (en) * | 2011-06-23 | 2012-12-26 | 浙江三花股份有限公司 | Expansion valve and coil thereof |
| CN102853597A (en) * | 2011-06-27 | 2013-01-02 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN202978556U (en) * | 2012-11-30 | 2013-06-05 | 中山大洋电机股份有限公司 | Motor leading wire fixing clamp assembly and motor using motor leading wire fixing clamp assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909863A (en) * | 2016-06-29 | 2016-08-31 | 博耐尔汽车电气系统有限公司 | Method for using expansion valve |
| CN105909863B (en) * | 2016-06-29 | 2018-01-12 | 博耐尔汽车电气系统有限公司 | A kind of application method of expansion valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104295786B (en) | 2017-06-06 |
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Effective date of registration: 20160803 Address after: 312500 Zhejiang city of Shaoxing province Xinchang County Chengguan town of Liquan Applicant after: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. Address before: 312500 Xinchang, Zhejiang province Qixing street under the village of Liquan Applicant before: ZHEJIANG SANHUA Co.,Ltd. |
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Effective date of registration: 20220810 Address after: 312500 Daming new area, Zhejiang Xinchang Economic Development Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Sanhua Commercial Refrigeration Co.,Ltd. Address before: Xia Li Quan, Chengguan Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG SANHUA CLIMATE AND APPLIANCE CONTROLS GROUP Co.,Ltd. |
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