CN208764430U - A kind of electric expansion valve - Google Patents
A kind of electric expansion valve Download PDFInfo
- Publication number
- CN208764430U CN208764430U CN201821563246.XU CN201821563246U CN208764430U CN 208764430 U CN208764430 U CN 208764430U CN 201821563246 U CN201821563246 U CN 201821563246U CN 208764430 U CN208764430 U CN 208764430U
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- CN
- China
- Prior art keywords
- valve
- valve seat
- electric expansion
- valve body
- 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.)
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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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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The utility model discloses a kind of electric expansion valve, including valve body, valve seat and valve seat core, the valve body is fixedly connected with the valve seat core, the valve body includes the first accommodating chamber, the at least partly described valve seat press-fitting is packed into first accommodating chamber and offsets with the valve body, the valve seat is injection molding structure, the valve seat includes valve support chamber, the electric expansion valve further includes nut transmission component and needle component, the at least partly described nut transmission component and at least partly described needle component are located at the valve support chamber, the valve seat core is equipped with valve port, the nut transmission component includes nut and screw rod, the needle component is acted on by the screw rod and being threadedly engaged for the nut close to or away from the valve port.The valve seat can substantially reduce cost of goods manufactured using this programme on the basis of reliably obtaining original valve function using the lower cost materials for being different from valve body as individual member.
Description
Technical field
The utility model relates to refrigeration control valve technology field, a kind of specific electric expansion valve.
Background technique
The electronic expansion valve structure of gear type deceleration device includes valve body and valve seat core, and the top of valve body is fixedly connected
There is shell, the peripheral part of shell is equipped with driving part, and electric expansion valve is equipped with cavity, which accommodates gear type deceleration dress
It sets, transmission parts and screw component, valve body is equipped with accommodating chamber, which is equipped with needle component, and valve seat core is equipped with valve port,
The cold medium flux for flowing through valve port is adjusted close to or away from valve port by needle component, the valve body need simultaneously with shell and
Valve seat core is fixedly connected, and valve body is typically limited to using metal material, and manufacturing cost is relatively high.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of electric expansion valve, it is capable of relative reduction components
Manufacturing cost.
The utility model provides a kind of electric expansion valve, including valve body, valve seat and valve seat core, the valve body and the valve
Seat core is fixedly connected, and the valve body includes the first accommodating chamber, and at least partly described valve seat press-fitting is packed into first accommodating chamber simultaneously
It offsets with the valve body, the valve seat is injection molding structure, and the valve seat includes valve support chamber, and the electric expansion valve further includes
Nut transmission component and needle component, at least partly described nut transmission component and at least partly described needle component are located at
The valve support chamber, the valve seat core are equipped with valve port, and the nut transmission component includes nut and screw rod, the needle component by
The screw rod and being threadedly engaged for the nut act on close to or away from the valve port.
The utility model is improved and optimizated for the connection structure of valve seat core, and valve body is fixedly connected with valve seat core, valve
Body is equipped with the first accommodating chamber, and at least partly valve seat press-fitting is packed into the first accommodating chamber, and valve seat is injection molding structure, and valve seat is equipped with valve
Seat chamber, electric expansion valve further includes nut transmission component and needle component, at least partly nut transmission component and at least portion
Needle component is divided to be located at valve support chamber, valve seat core is equipped with valve port, and nut transmission component includes nut and screw rod, and needle component is by silk
Bar and nut are threadedly engaged effect close to or away from valve port, and valve seat is to compare background using injection molding structure in the structure
Technology is capable of the manufacturing cost of relative reduction components.
Detailed description of the invention
Fig. 1 is the overall structure diagram of electric expansion valve described in specific embodiment；
Fig. 2 is the portion the A enlarged drawing of Fig. 1.
In figure:
Shell 1, epicyclic reduction gear unit 2, output gear shaft 21, valve seat 3, valve support chamber 31, the second accommodating chamber 311,
Three accommodating chambers 312, second interface 32, the first extension 33, the second extension 34, body part 35, third stage portion 36, screw rod
41, nut 42, core assembly 5, needle 51, reset spring 52, valve body 6, support portion 61, second step portion 62, the first accommodating chamber
63, valve seat core 7, valve port 71, first step portion 72, large-diameter portion 73, small diameter portion 74, first interface 75, the first adapter tube 8, second connect
Pipe 9.
Specific embodiment
It is with reference to the accompanying drawing and specific real in order to make those skilled in the art more fully understand technical solution of the present invention
Applying example, the present invention is described in further detail.
Referring to FIG. 1, the figure is the overall structure diagram of electric expansion valve described in present embodiment.
The electric expansion valve includes shell 1 and the epicyclic reduction gear unit being arranged in shell 12, and specific transmission is former
It manages same as the prior art, is slowed down using epicyclic reduction gear unit 2, and pass through the defeated of the epicyclic reduction gear unit 2
21 output power of gear shaft realizes valve port opening to screw rod 41 to drive the displacement of core assembly 5 close to or away from valve port 71 out
It adjusts.
Further combined with the portion the A enlarged drawing that shown in Fig. 2, which is Fig. 1.
As shown in connection with fig. 2, the valve body 6 that can be fixedly connected with shell 1 is equipped with the first accommodating chamber 63, and at least partly valve seat 3 is pressed
It is fitted into the first accommodating chamber 63 and offsets with valve body 6；Valve seat 3 is held as the nut 42 and needle component 4 being adapted to screw rod 41
Mount components are provided with the valve support chamber for accommodating at least partly nut transmission component (41,42) and at least partly needle component 4
31；Wherein, the cover of valve body 6 is fixedly connected loaded on 3 outside of valve seat and with shell 1, and valve seat core 7 offers suitable with needle component 5 thereon
The valve port 71 matched, and valve seat core 7, valve seat 3 are fixedly connected with valve body 6 respectively, and dielectric cavity B is formed between valve seat core 7 and valve seat 3.
The optimization structure, valve seat 3 can be using being different from the lower cost materials of valve body 6, for example, can be with as individual member
It is made of integrated injection molding forming technology, on the basis of reliably obtaining original valve function, product manufacturing can be substantially reduced
Cost.
In order to further increase the connection reliability of valve seat core 7 Yu valve seat 3, valve seat 3 prolongs including the first extension 33, second
Extending portion 34 and body part 35, the first extension 33 are extended upward by body part 35, and the second extension 34 is by 35 court of body part
Lower section extends, and holding tank C is formed between valve body 6 and valve seat core 7, and the press-fitting of the second extension 34 is packed into holding tank C.
As shown, the peripheral surface of valve seat core 7 may include the large-diameter portion 73 and path connected by first step portion 72
Portion 74, and accommodation space C is formed between the small diameter portion of valve seat core 7 74, first step portion 72 and valve body 6, valve seat 3 can as a result,
It is embedded in and is fixed in accommodation space C.
Specifically, form 3 outer wall of valve seat of dielectric cavity B for constructing and extend to first step portion 72, using press fitting or
The small diameter portion 74 of interference mode and valve seat core 7 assembles, and then realizes and be reliably connected and fixed between the two.Certainly, valve seat 3 is using note
It is moulded into when going into operation skill, shapes with 7 integrated injection molding of valve seat core, while controlling material cost, can save according to actual needs
Imitate assembly time.On this basis, the outer of valve body 6 extends to the large-diameter portion 73 of valve seat core 7, and is firmly connected with it.
The inner wall of the periphery wall and valve body 6 of the body part 35 of valve seat 3 and the second extension 34 offsets.Preferably, valve
Matched between body 6 and the mating surface of valve seat 3 for interference fit that is, using tight fit structure between valve body 6 and valve seat 3 with forming zero-clearance
Conjunction relationship, to avoid during valve actuation impact noise between issuable component.
In the present solution, the first interface 75 being connected to valve port 71 is provided on valve seat core 7, for fixed with the first adapter tube 8
Connection；It is provided with the second interface 32 being connected to interior media chamber B on valve seat 3 and valve body 6, penetrates through valve seat 3 and 6 side wall of valve body
Second interface 32 with the second adapter tube 9 for being fixedly connected.
In the present solution, the valve support chamber 31 of valve seat 3 is stepped hole, including the second accommodating chamber 311 and third accommodating chamber 312,
At least partly nut transmission component is arranged in the second accommodating chamber 311 of valve support chamber 31, and at least partly needle component setting is the
In three accommodating chambers 312.The needle 51 of needle component 5 is adapted to from after the stretching of valve support chamber 31 with the valve port 71 of valve seat core 7, core assembly
5 52 one end of reset spring is connected to the stage portion of the third accommodating chamber 312；Same as the prior art, needle 51 has
The radially projecting limiting section being adapted to is abutted with the other end of reset spring 52, also equally is located in the third accommodating chamber 312.
Make dynamic stability to preferably obtain valve, as shown, valve body 6 further extends in shell 1, it can be one
Body machine-shaping structure, and there is support portion 61；The output gear of epicyclic reduction gear unit 2 is supported by support portion 61,
Its output shaft 21 is driven with the screw rod 41 for adapting to nut 42 to be connected, and completes power transmitting.21 one of output gear and output shaft
Machine-shaping.Here, valve body 6 provides support construction plug-in opening 61, so as to radially defined revolving member output gear shaft 21
It swings or is displaced, it is ensured that it rotates coaxially with screw rod 41 and is stabilized realization.Based on plug-in opening 61 function setting, valve body 6 with
There is the second step portion 62 of interior receipts, the outer rim of shell 1 is taken to the second step portion 62, correspondingly at the link position of shell 1
Valve seat 3 has the third stage portion 36 for the cooperation that offsets with the second step portion 62.First extension 33 and body part 35 pass through the
The connection of three stage portions 36.
It should be noted that above-described embodiment that present embodiment provides, the epicyclic reduction gear unit 2 in drive path
The not this Applicant's Abstract graph central inventive point of functional structure where, those skilled in the art can be realized based on the prior art, therefore herein
It repeats no more.And the epicyclic reduction gear unit 2 is also not limited to structure type shown in figure, it should be understood that as long as using
Within the scope of the present application with the consistent technological means of this programme core idea.
The above is only the preferred embodiment of the present invention, it is noted that those skilled in the art are come
It says, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should be regarded as
Protection scope of the present invention.
Claims (9)
1. a kind of electric expansion valve, which is characterized in that including valve body, valve seat and valve seat core, the valve body and the valve seat core
Be fixedly connected, the valve body includes the first accommodating chamber, at least partly valve seat press-fitting be packed into first accommodating chamber and with institute
It states valve body to offset, the valve seat is injection molding structure, and the valve seat includes valve support chamber, and the electric expansion valve further includes nut
Transmission component and needle component, at least partly described nut transmission component and at least partly described needle component are located at described
Valve support chamber, the valve seat core are equipped with valve port, and the nut transmission component includes nut and screw rod, and the needle component is by described
Screw rod and being threadedly engaged for the nut act on close to or away from the valve port.
2. electric expansion valve according to claim 1, which is characterized in that the valve seat prolongs including the first extension, second
Extending portion and body part, first extension are extended upward by the body part, and second extension is by the ontology
Portion extends downward, and holding tank is formed between the valve body and the valve seat core, and second extension is press-fitted described in loading
Holding tank.
3. electric expansion valve according to claim 2, which is characterized in that the valve seat core include small diameter portion, large-diameter portion with
And first step portion, the small diameter portion are connect with the large-diameter portion by the first step portion, the small diameter portion, described first
The lower end of stage portion and the valve body forms the holding tank.
4. electric expansion valve according to claim 3, which is characterized in that the body part and second extension
The inner wall of periphery wall and the valve body offsets.
5. electric expansion valve according to claim 4, which is characterized in that the valve body is equipped with second step portion, and described the
One extension is connect with the body part by third stage portion, and the second step portion offsets with the third stage portion.
6. electric expansion valve according to claim 5, which is characterized in that the valve support chamber be additionally provided with the second accommodating chamber and
Third accommodating chamber, second accommodating chamber are equipped at least partly described nut transmission component, and the third accommodating chamber is equipped at least
The part needle component.
7. electric expansion valve according to claim 1, which is characterized in that the valve body is integrated machine-shaping structure, institute
Stating valve body further includes support portion, and the electric expansion valve further includes shell, and the shell is fixedly connected with the valve body, described outer
Epicyclic reduction gear unit is accommodated in shell, the epicyclic reduction gear unit includes output gear, and the output gear is by institute
Support portion is stated to be supported.
8. electric expansion valve according to claim 7, which is characterized in that the output gear is equipped with output shaft, described defeated
Gear and the output shaft are integrally machined molding out, and the nut transmission component includes nut and screw rod, the output shaft and
The screw rod transmission connection.
9. electric expansion valve according to claim 8, which is characterized in that the needle component includes needle and reset bullet
Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563246.XU CN208764430U (en) | 2018-09-25 | 2018-09-25 | A kind of electric expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821563246.XU CN208764430U (en) | 2018-09-25 | 2018-09-25 | A kind of electric expansion valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208764430U true CN208764430U (en) | 2019-04-19 |
Family
ID=66137058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821563246.XU Active CN208764430U (en) | 2018-09-25 | 2018-09-25 | A kind of electric expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208764430U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143734A1 (en) * | 2020-12-30 | 2022-07-07 | 浙江三花制冷集团有限公司 | Electric valve |
| WO2023143028A1 (en) * | 2022-01-28 | 2023-08-03 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
-
2018
- 2018-09-25 CN CN201821563246.XU patent/CN208764430U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022143734A1 (en) * | 2020-12-30 | 2022-07-07 | 浙江三花制冷集团有限公司 | Electric valve |
| WO2023143028A1 (en) * | 2022-01-28 | 2023-08-03 | 浙江盾安人工环境股份有限公司 | Electronic expansion valve |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |