CN110159820A - A kind of electric expansion valve - Google Patents
A kind of electric expansion valve Download PDFInfo
- Publication number
- CN110159820A CN110159820A CN201810139561.8A CN201810139561A CN110159820A CN 110159820 A CN110159820 A CN 110159820A CN 201810139561 A CN201810139561 A CN 201810139561A CN 110159820 A CN110159820 A CN 110159820A
- Authority
- CN
- China
- Prior art keywords
- coil component
- electric expansion
- expansion valve
- stator casing
- stator
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a kind of electric expansion valves, including coil component and valve body, the coil component include stator plate, with the stator casing of stator plate conductive contact and the nonconducting plastic packaging shell being coated on outside stator casing, the stator casing is equipped with the exposed portion of stator casing for being exposed to plastic packaging hull outside, the electric expansion valve further includes the locating plate being conductively connected with valve body, the coil component is welded and fixed with locating plate, and the locating plate is equipped with the electrically conducting contact with stator casing conductive contact.The technical solution adopted by the present invention, coil component are welded and fixed with locating plate, compared to the connection type of encapsulating, simple process, high production efficiency, in addition, coil ground structure is simple, easy for installation.
Description
Technical field
The present invention relates to refrigeration and air-conditioning technical fields, and in particular to electric expansion valve.
Background technique
During coil power on/off, the stator plate of coil and the electrostatic of stator casing output need to export coil, no
Then there is the possibility for influencing other components.The electrostatic that other electrical parts generate simultaneously may also influence stepper motor and cause to miss
Movement.
The Chinese invention patent of Publication No. CN103016821B discloses a kind of electric expansion valve, grounding fastener and coil
Fixation need to realize that dosing technology is complicated, and the potting material cure period is long, low efficiency, and coil easy to pollute by Embedding Material.
And after cancelling encapsulating process, which cannot achieve coil and fixes and grounding function.
The Chinese invention patent of 107620824 A of Publication No. CN discloses a kind of electric expansion valve, passes through grounding assembly
Circuit board and valve body are conductively connected.It is molded into coil again after ground connection contact pin and stator casing welding, increases answering for Shooting Technique
Polygamy.In addition be grounded contact pin and connecting plate also uses welding procedure.Although the structure realizes grounding function, but total
Complex, production process is various, and processing efficiency is low.
Summary of the invention
The technical problem to be solved by the invention is to provide a kind of electric expansion valves, and solving coil component ground structure needs
Encapsulating is wanted to fix, the problem of complex procedures, production cycle length.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of electric expansion valve comprising coil component and valve body, the coil component include stator plate and stator poles
The stator casing of plate conductive contact and the nonconducting plastic packaging shell being coated on outside stator casing, the stator casing are equipped with naked
It is exposed to the exposed portion of stator casing of plastic packaging hull outside, the electric expansion valve further includes the locating plate being conductively connected with valve body,
The coil component is welded and fixed with locating plate, and the locating plate is equipped with the electrically conducting contact with stator casing conductive contact.
Preferably, the bottom of the coil component is equipped at least two welded posts, and the locating plate is equipped with annulus, described
The circumferentially distributed location hole for having at least two location fits corresponding at least two welded post and being welded to connect of annulus.
Preferably, the locating plate is equipped with annulus side edge and to the fixed part of side of valve body extension, described solid
Determine portion to fix by screw and valve body.
Preferably, the fixed part and annulus connecting part are equipped with notch, and the electrically conducting contact is from annulus and lacks
Mouth connecting part extends out.
Preferably, the electrically conducting contact is equipped with the elastic bending head with stator casing Elastic Contact.
Preferably, the plastic packaging shell is integrated injection molding structure.
Preferably, the plastic packaging shell is reserved with the exposed slot for keeping stator casing exposed in coil component side or bottom surface
Mouthful.
Preferably, the locating plate is fixed by ultrasonic wave or sweat soldering with coil component.
The present invention also provides another electric expansion valves comprising coil component and valve body, the coil component packet
The nonconducting plastic packaging shell for including the stator casing of stator plate and stator plate conductive contact and being coated on outside stator casing
Body, the electric expansion valve further include the locating plate being placed between the coil component and valve body, and the locating plate includes and institute
It states the fixed annulus of coil component, extend the fixed part with valve body positioning by the lateral border bending of the annulus, and
In the electrically conducting contact being arranged on the fixed part, the electrically conducting contact by the annulus the relatively described fixed part of lateral border
Reversed bending extends and contacts with the stator casing.
Preferably, the electrically conducting contact be stamped to form by the fixed part and with the stator casing Elastic Contact.
The technical solution adopted by the present invention, firstly, coil component is welded and fixed with locating plate, compared to the connection side of encapsulating
Formula, simple process, high production efficiency；Secondly, it is only necessary to the structure of locating plate, so that it may realize valve body, stator plate, outside stator
The conductive contact of shell three, coil ground structure are simple, easy for installation.
Detailed description of the invention
Present invention will be further described below with reference to the accompanying drawings and specific embodiments:
Fig. 1 is decomposition texture schematic diagram of the invention；
Fig. 2 is assembly structure diagram of the invention；
Fig. 3 is overlooking structure diagram of the invention；
Fig. 4 is A-A schematic cross-sectional view in Fig. 3；
Fig. 5 is the structural schematic diagram of locating plate.
Specific embodiment
The technical solution of the embodiment of the present invention is explained and illustrated below with reference to the attached drawing of the embodiment of the present invention, but under
It states embodiment to be merely a preferred embodiment of the present invention, and not all.Based on the implementation example in the implementation mode, those skilled in the art
Obtained other embodiments without making creative work, belong to protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of electric expansion valve, including coil component 1, valve base part 2 and valve body 3, the coil
Component 1 include coil 11, stator plate, with the stator casing 12 of stator plate conductive contact and be coated on outside stator casing 12
Nonconducting plastic packaging shell 13.The valve base part 2 is installed on valve body 3, including valve seat 24, rotor, nut 21, needle
22, needle spring 23.Above-mentioned coil component 1, valve base part 2 and valve body 3 are mature structure in the prior art, specific to tie
Structure and principle repeat no more.
With reference to shown in Fig. 3 to Fig. 5, coil component 1 is connected with connecting terminal 15, and connecting terminal 15 is externally provided with wiring board and line
Road plate protecting box 16.In order to realize the ground connection of coil component 1, the stator casing 12 is equipped with and is exposed to outside plastic packaging shell 13
The exposed portion of stator casing, the electric expansion valve further include being placed between the coil component 1 and valve body 3 with 3 conduction of valve body even
The locating plate 4 connect.
Wherein, the bottom of the coil component 1 is equipped with welded post 14, and the locating plate 4 is equipped with matches with the positioning of welded post 14
Merge the location hole 411 being welded to connect.The locating plate 4 is fixed by ultrasonic wave or sweat soldering and coil component 1.Using
Welded post 14 and 411 contact site of location hole hot melt are directly by ultrasonic wave or sweat soldering without adding welding material
Can, it is easy for installation, and welded post 14 and the cooperation of location hole 411 can guarantee to be formed after welding reliably to connect.
Refering to what is shown in Fig. 5, the locating plate 4 is equipped with annulus 41, at least two location holes 411 circumferentially divide along annulus
Cloth.Cooperated by annulus 41 and multiple location holes 411 with corresponding welded post 14, locating plate 4 and coil component 1 can be increased
Connection area, guarantee to be reliably connected.
Further, the locating plate 4 is equipped with fixed part 42 with 41 side edge of annulus and fixed with valve body 3.Institute
It states fixed part 42 and extends and pass through screw and the fixation of valve body 3 to 3 side of valve body.Side of valve body correspondence offers screw fixing hole
31, fixed part 42 offers through-hole 422.It is screwed locating plate 4, locating plate, which is not easy to loosen, even to fall off, Er Qiexiang
Conductive compared with simple Elastic Contact, conductive contact reliability is higher after screw is fixed, and locating plate 4 will not be separated with valve body 3.
In order to guarantee that electrically conducting contact 43 and 12 conductive contact of stator casing, locating plate 4 can use good conductive and tool
There are the metal of favorable elasticity, such as stainless steel.The fixed part 42 is equipped with notch 421, the conduction with 41 connecting part of annulus
Contact portion 43 extends out from annulus 41 and 421 connecting part of notch, and the electrically conducting contact 43 is equipped with and stator casing 12
The elastic bending head 431 of Elastic Contact ensures that electrically conducting contact 43 and the contact of stator casing 12 are good by elastic reaction.
In order to facilitate the processing of locating plate 4, locating plate 4 can be using whole stamping and forming structure, wherein fixed part 42 by
The lateral border of annulus 41 is bent to form, and electrically conducting contact 43 is stamped to form by the fixed part 42, specifically by the ring-type
The relatively described fixed part 42 of the lateral border in portion 41 is reversely bent to form.
In the present invention, coil component 1 is welded and fixed with locating plate 4, and the locating plate 4 is equipped with and connects with 12 conduction of stator casing
The electrically conducting contact 43 of touching.Firstly, coil component 1 is welded and fixed with locating plate 4, compared to the connection type of encapsulating, technique letter
It is single, high production efficiency；Secondly, it is only necessary to the structure of locating plate 4, so that it may realize valve body 3, stator plate, stator casing 12 3
The conductive contact of person, coil ground structure are simple, easy for installation.It may therefore be assured that the stator plate and stator of coil inside
12 earth-continuity of shell, the electrostatic for avoiding coil from generating is to the electrostatic of the influence of other components and the generation of other components to electricity
The influence of sub- expansion valve.
In addition, it is necessary to illustrate, the stator plate and stator casing of coil are assembled together, and have formd good
It is in electrical contact, when locating plate 4 and stator casing 12 therein form in electrical contact, locating plate 4 is by the institute with coil inside
There are stator plate and stator casing 12 in electrical contact.
For convenience of processing and manufacturing, the plastic packaging shell 13 is integrated injection molding structure.Those skilled in the art can manage
Solution, the exposed portion of stator casing can be provided with 12 any part of stator casing, and the present embodiment is preferred, the plastic packaging shell
13 are reserved with the exposed notch 131 for keeping stator casing 12 exposed in 1 side of coil component or bottom surface.Certainly, by exposed notch 131
Setting is best in 1 bottom sides position of coil component, and one side electrically conducting contact 43 is too long without extending, on the other hand elasticity folding
Elbow 431 can conveniently be caught in exposed notch 131.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, is familiar with
The those skilled in the art should be understood that the present invention includes but is not limited to attached drawing and interior described in specific embodiment above
Hold.Any modification without departing from function and structure principle of the invention is intended to be included in the range of claims.
Claims (10)
1. a kind of electric expansion valve comprising coil component and valve body, the coil component include stator plate and stator plate
The stator casing of conductive contact and the nonconducting plastic packaging shell being coated on outside stator casing, the stator casing are equipped with exposed
In the exposed portion of the stator casing of plastic packaging hull outside, it is characterised in that: the electric expansion valve further includes being conductively connected with valve body
Locating plate, the coil component is welded and fixed with locating plate, and the locating plate is equipped with the conduction with stator casing conductive contact
Contact portion.
2. a kind of electric expansion valve according to claim 1, it is characterised in that: the bottom of the coil component is equipped at least
Two welded posts, the locating plate are equipped with annulus, and the annulus is circumferentially distributed at least two and described at least two
The location hole that welded post corresponds to location fit and is welded to connect.
3. a kind of electric expansion valve according to claim 2, it is characterised in that: the locating plate is equipped with and annulus edge
Connect and to the fixed part that side of valve body extends, the fixed part fixed by screw and valve body.
4. a kind of electric expansion valve according to claim 3, it is characterised in that: the fixed part and annulus connecting part
Equipped with notch, the electrically conducting contact extends out from annulus and notch connecting part.
5. a kind of electric expansion valve according to claim 4, it is characterised in that: the electrically conducting contact be equipped with outside stator
The elastic bending head of shell Elastic Contact.
6. according to claim 1 to a kind of electric expansion valve described in 5 any one, it is characterised in that: the plastic packaging shell is
Integrated injection molding structure.
7. a kind of electric expansion valve according to claim 6, it is characterised in that: the plastic packaging shell is in coil component side
Or bottom surface is reserved with the exposed notch for keeping stator casing exposed.
8. a kind of electric expansion valve according to claim 1, it is characterised in that: the locating plate passes through ultrasonic wave or heat
Fusion welding is fixed with coil component.
9. a kind of electric expansion valve comprising coil component and valve body, the coil component include stator plate and stator plate
The stator casing of conductive contact and the nonconducting plastic packaging shell being coated on outside stator casing, it is characterised in that: the electronics
Expansion valve further includes the locating plate being placed between the coil component and valve body, and the locating plate includes solid with the coil component
Fixed annulus extends the fixed part with valve body positioning by the lateral border bending of the annulus, and in the fixed part
The electrically conducting contact of upper setting, the electrically conducting contact reversely bend extension by the relatively described fixed part of lateral border of the annulus
And it is contacted with the stator casing.
10. a kind of electric expansion valve according to claim 9, it is characterised in that: the electrically conducting contact is by the fixation
Portion be stamped to form and with the stator casing Elastic Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810139561.8A CN110159820B (en) | 2018-02-11 | 2018-02-11 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810139561.8A CN110159820B (en) | 2018-02-11 | 2018-02-11 | Electronic expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110159820A true CN110159820A (en) | 2019-08-23 |
| CN110159820B CN110159820B (en) | 2022-03-25 |
Family
ID=67641504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810139561.8A Active CN110159820B (en) | 2018-02-11 | 2018-02-11 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110159820B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000074245A (en) * | 1998-08-27 | 2000-03-14 | Fuji Koki Corp | Electric operated valve |
| CN2644818Y (en) * | 2003-06-23 | 2004-09-29 | 浙江三花集团有限公司 | Rotary type solenoid valve |
| CN103016821A (en) * | 2011-09-26 | 2013-04-03 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN302687291S (en) * | 2013-12-18 | |||
| CN104565475A (en) * | 2013-10-15 | 2015-04-29 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN106953496A (en) * | 2016-01-06 | 2017-07-14 | 浙江三花汽车零部件有限公司 | Step motor coil device and electronic valve |
-
2018
- 2018-02-11 CN CN201810139561.8A patent/CN110159820B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN302687291S (en) * | 2013-12-18 | |||
| JP2000074245A (en) * | 1998-08-27 | 2000-03-14 | Fuji Koki Corp | Electric operated valve |
| CN2644818Y (en) * | 2003-06-23 | 2004-09-29 | 浙江三花集团有限公司 | Rotary type solenoid valve |
| CN103016821A (en) * | 2011-09-26 | 2013-04-03 | 浙江三花股份有限公司 | Electronic expansion valve |
| CN104565475A (en) * | 2013-10-15 | 2015-04-29 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
| CN106953496A (en) * | 2016-01-06 | 2017-07-14 | 浙江三花汽车零部件有限公司 | Step motor coil device and electronic valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110159820B (en) | 2022-03-25 |
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