CN109812594B - Electrically operated valve and heat exchanger assembly with same - Google Patents
Electrically operated valve and heat exchanger assembly with same Download PDFInfo
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- CN109812594B CN109812594B CN201711169869.9A CN201711169869A CN109812594B CN 109812594 B CN109812594 B CN 109812594B CN 201711169869 A CN201711169869 A CN 201711169869A CN 109812594 B CN109812594 B CN 109812594B
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Abstract
The invention discloses an electric valve, which comprises a valve body and a valve core, wherein the valve body is provided with a first cavity, a second cavity and a third cavity, a first step part is formed between the first cavity and the second cavity, a second step part is formed between the second cavity and the third cavity, the valve body is also provided with a blocking part, the blocking part covers at least part of the first cavity, so that a clamping cavity is formed in the first cavity, the valve body is also provided with at least one limiting hole, the limiting hole penetrates through the blocking part, the valve core comprises a valve seat assembly, a first seat body part is arranged on a first valve seat of the valve seat assembly, a positioning slotted hole is also arranged on the first seat body part, one part of the first seat body part is accommodated in the clamping cavity, and fixing pins are arranged in the positioning slotted hole and the limiting hole. This motorised valve and have heat exchanger subassembly of this motorised valve can effectively reduce the size of valve body, and the installation of case and valve body is comparatively convenient moreover, and stability is also higher.
Description
Technical Field
The invention relates to the field of fluid control, in particular to a flow control valve and a heat exchanger assembly with the same.
Background
Along with the continuous improvement of the requirements on energy conservation and emission reduction and the high integration of products, the integration and miniaturization of each component in an air conditioning system are the current development trend. In the existing electric valve, the valve core and the valve body are fixed by a threaded connection, and this fixing method needs to provide a large torque to fix the valve core and the valve body to each other, and in order to provide a sufficient torque, the valve body needs to have a large size. And the spanner need avoid the valve body in the installation of case and valve body, and the difficult transmission of torsion also makes the installation degree of difficulty of case great to the case also makes the volume, the height and the weight increase of case owing to need set up the external screw thread.
Therefore, how to provide a miniaturized electric valve which is beneficial to installation is a technical problem which is urgently needed to be solved at present.
Disclosure of Invention
In order to solve the technical problems, the invention provides an electric valve and a heat exchanger assembly with the electric valve.
The invention provides an electric valve, which comprises a valve body and a valve core, wherein the valve body is provided with a cavity with an opening at one end, the cavity comprises a first cavity, a second cavity and a third cavity, the first cavity is larger than the inner diameter of the second cavity, the second cavity is larger than the inner diameter of the third cavity, a first step part is formed between the first cavity and the second cavity, a second step part is formed between the second cavity and the third cavity, a blocking part is arranged at one end of the first cavity far away from the first step part, the blocking part covers at least part of the first cavity, so that part of the first cavity is a clamping cavity, the valve body part is also provided with at least one limiting hole, the limiting hole penetrates through the blocking part, one end of the limiting hole is communicated with the first cavity, and the minimum inner diameter of the opening end of the first cavity far away from the first step part is smaller than the inner diameter of the first cavity, the minimum inner diameter of the first cavity far away from the opening end of the first step part is larger than the inner diameter of the second cavity;
the valve core comprises a valve seat assembly, the valve seat assembly comprises a first valve seat, the first valve seat is provided with a first seat body portion, the first seat body portion is further provided with a positioning groove hole, the side, corresponding to the accommodating hole, of the first seat body portion is accommodated in the clamping cavity, the positioning groove hole is opposite to the limiting hole, the first valve seat and the valve body are radially limited through a fixing pin, and a part of the fixing pin is located in the limiting hole and the positioning groove hole.
The shape of the first seat body part corresponds to the opening end of the first cavity far away from the first step part, the length (L1) of the first seat body part between the two opposite sides of the corresponding side of the positioning slot hole is larger than the length (L2) between the other two sides, the number of the limiting holes can be two, the limiting holes are respectively positioned at the two opposite sides, and the first seat body part and the blocking part are in clearance fit.
The first valve seat further comprises a second seat body part and a third seat body part, at least one part of the first seat body part is matched with the inner wall of the first cavity, at least one part of the second seat body part is matched with the inner wall of the second cavity, at least one part of the third seat body part is matched with the inner wall of the third cavity, a first groove is further formed in the second seat body part, a second groove is further formed in the third seat body part, a first sealing ring is arranged between the first groove and the inner wall of the second cavity, and a second sealing ring is arranged between the second groove and the inner wall of the third cavity.
An elastic member is arranged between the lower end surface of the first seat body portion and the first stepped portion, and the elastic member is in a compressed state.
Wherein the first, second and third cavities are cylindrical and the first, second and third seat portions are cylindrical.
The invention also provides a heat exchanger assembly, which comprises a heat exchanger and an electric valve, wherein the electric valve is fixedly installed with the heat exchanger, and the outlet of the electric valve is communicated with the inlet of one flow path of the heat exchanger.
The valve body and the heat exchanger are fixed through welding, the valve body comprises a first valve body part and a second valve body part, the height of the first valve body part is larger than that of the second valve body part, the second valve body part is provided with a first interface hole and a second interface hole, the first cavity, the second cavity, the third cavity and the limiting hole are arranged in the first valve body part, and the first interface hole and the second interface hole are an inlet and an outlet of one flow path of the heat exchanger.
The valve body is further provided with a through hole, at least one part of the through hole is located in the first valve body portion, at least one part of the through hole is located in the second valve body portion, and the through hole is communicated with the second interface hole and the second cavity.
The port of the first interface hole and the port of the second interface hole are located on the same plane of the second valve body portion.
The electrically operated valve and the heat exchanger assembly with the electrically operated valve provided by the invention can effectively reduce the size of the valve body, and the valve core and the valve body are more convenient to install and have higher stability.
Drawings
Fig. 1 is a schematic perspective view of a heat exchanger assembly according to an embodiment of the present invention.
Fig. 2 is a schematic view of an electrically operated valve of the heat exchanger assembly shown in fig. 1.
Fig. 3 is a schematic view of an electric valve core of the heat exchanger assembly of fig. 1.
Fig. 4 is an exploded view of the electric valve part of the heat exchanger assembly of fig. 1 in the corresponding portion of the valve core.
Fig. 5 is a partial cross-sectional schematic view of fig. 1.
Detailed Description
The technical solutions of the present invention are specifically described below with reference to the drawings and the detailed description, and the terms of orientation such as clockwise in the description are set forth according to the orientation relationship in the drawings or the corresponding orientation relationship in the drawings.
As shown in fig. 1, the heat exchanger assembly includes a heat exchanger 3 and an electrically operated valve, the heat exchanger 3 and the electrically operated valve can be directly fixed together by welding, an outlet of the electrically operated valve is communicated with an inlet of one of the flow paths of the heat exchanger 3, and an inlet and an outlet of the other flow path of the heat exchanger 3 are communicated with a first external connection pipe 31 and a second external connection pipe 32.
As shown in fig. 2 to 5, the electric valve includes a valve body 1 and a valve core 2, wherein the valve body 1 includes a first valve body portion 11 and a second valve body portion 12, and the height of the first valve body portion 11 is larger than the height of the second valve body portion 12. The second valve body part 12 is provided with a first port hole 13 and a second port hole 14, wherein the first port hole 13 may be an outlet hole of one flow passage of the heat exchanger assembly, and the second port hole 14 may be an inlet hole of the same flow passage. It should be noted here that the second valve body portion may not be provided, and the second port hole may be provided in the first valve body portion to form an electric valve. In this embodiment, the port of the first interface hole 13 and the port of the second interface hole 14 are disposed on the same plane of the second valve body 12, so that when an external connection pipe communicated with the first interface hole 13 and an external connection pipe communicated with the second interface hole 14 are disposed, only one pressing block needs to be disposed to fix the two connection pipes, which is convenient to install and saves cost.
The first valve body portion 11 is provided with a longitudinal through-hole including a first chamber 111, a second chamber 112 and a third chamber 113, wherein the first chamber 111 has an inner diameter larger than that of the second chamber 112, the second chamber 112 has an inner diameter larger than that of the third chamber 113, a first step portion 114 is formed between the first chamber 111 and the second chamber 112, and a second step portion 115 is formed between the second chamber 112 and the third chamber 113.
A blocking portion 116 is disposed at an end of the first cavity 111 away from the first stepped portion 114, the blocking portion 116 is disposed opposite to each other, and the blocking portion 116 covers at least a portion of the first cavity 111, so that a locking cavity 117 is formed in the first cavity 111. The minimum inner diameter of the first chamber 111 away from the open end of the first step 114 is smaller than the inner diameter of the first chamber 111, and the minimum inner diameter of the first chamber 111 away from the open end of the first step 114 is larger than the inner diameter of the second chamber 112.
The first valve body 11 is further provided with at least one limiting hole 151, the limiting hole 151 penetrates through the blocking portion 116, and one end of the limiting hole 151 is communicated with the first cavity 111.
At least one communication hole 141 is further provided in the first valve body portion 11, and the communication hole 141 communicates the second port hole 14 and the second chamber 112. It should be noted here that when the second valve body portion 12 is not provided, one end of the communication hole 141 may serve as an inlet end of the electric valve.
As shown in fig. 1 and 3, the valve plug 2 includes a valve seat assembly 21 and a coil 22, wherein the valve seat assembly 21 includes a first valve seat 23, the first valve seat 23 includes a first seat portion 232, a second seat portion 234 and a third seat portion 235 arranged from top to bottom, the second seat portion 234 is further provided with a first groove 233, and the third seat portion 235 is further provided with a second groove 236 and at least one through hole 237.
The shape of the first seat portion 232 corresponds to the open end of the first cavity 111 away from the first step 114, the first seat portion 232 is further provided with a positioning slot 231, the length L1 of the first seat portion 232 between the two opposite sides of the side corresponding to the positioning slot 231 is greater than the length L2 between the two other sides, so that when the first valve seat 23 is mounted with the first valve body 11, the first seat portion 232 firstly penetrates through the open end of the first cavity 111 away from the first step 114 and extends into the first cavity 111, at this time, the side of the first seat portion 232 corresponding to the positioning slot 231 is not yet located in the position-locking cavity 117, then the valve seat assembly 21 is rotated by a certain angle to enable the side of the first seat portion 232 corresponding to the positioning slot 231 to be accommodated in the position-locking cavity 117, and simultaneously the position-locking hole 151 is opposite to the positioning slot 231, then the fixing pin 161 is inserted from the position-locking hole 151, thereby fixedly mounting the valve plug and the valve seat, here, the fixing pin 161 is matched with the position-locking hole 151 and the position-locking cavity 117 by two ways, thereby achieving the radial matching and the position-locking of the axial thread portion of the first seat portion 11 and the position-locking cavity 117, thereby reducing the leakage of the valve body, and reducing the leakage of the valve body 1, and reducing the leakage of the valve body, and reducing the leakage of the valve body, and reducing the.
It should be noted here that the number of the limiting holes may be two, and the first seat portion 232 and the blocking portion 116 are in clearance fit.
As shown in fig. 5, the first valve seat 23 is attached to the through hole of the first valve body portion 11. The first, second and third chambers are cylindrical and the first, second and third seat portions are cylindrical, as shown, the first seat portion 232 mates with the inner wall of the first chamber 111, the second seat portion 234 mates with the inner wall of the second chamber 112, and the third seat portion 235 mates with the inner wall of the third chamber 113. To improve the sealing between the first valve seat 23 and the first valve body 11, a first sealing ring (not shown) is disposed between the second seat portion 234 and the inner wall of the second chamber 112, the first sealing ring 41 is received in the first groove 233 in this embodiment, and a second sealing ring (not shown) is disposed between the third seat portion 235 and the inner wall of the third chamber 113, the second sealing ring 42 is received in the second groove 236 in this embodiment. Wherein, in this embodiment, set up first sealing washer and can reduce the outer risk of leaking, set up the second sealing washer and can reduce the inner risk of leaking.
As shown in fig. 5, the lower end surface of the first seat portion 232 abuts against the first step portion 114, and the lower end surface of the second seat portion 234 abuts against the second step portion 115, by two limit modes, i.e., the elastic steel ball is matched with the limit hole 151 and the first seat portion 11 is matched with the blocking cavity 117. In addition, an elastic member may be provided between the lower end surface of the first seat portion and the first stepped portion, and the elastic member is in a compressed state, so that the stability of the valve seat can be improved, and the sealing performance can be improved. In the heat exchanger assembly of the present embodiment, after the fluid flows in from the second port hole 14, the fluid flows into the second chamber 112 through the communication hole 141, the fluid flowing into the second chamber 112 further flows into the valve body 2 through the through hole 237, and the flow rate of the fluid is adjusted by controlling the flow area of an orifice (not shown) in the valve body 2 by the valve rod 24. The fluid flows out of the valve core 2, flows into the heat exchanger 3, exchanges heat with another fluid in the heat exchanger 3, and flows out of the heat exchanger assembly through the first connector 13. The electric valve has smaller volume and smaller height, so that the electric valve is favorable for the installation of the electric valve and the heat exchanger, prevents the electric valve from interfering with a connecting pipe, and is also favorable for the installation of a heat exchanger assembly in a system.
The foregoing is illustrative of the present invention and is not to be construed as limiting thereof in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can now make numerous changes and modifications to the disclosed embodiments, and equivalents thereof, without departing from the scope of the invention as set forth in the claims below. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.
Claims (8)
1. An electric valve comprises a valve body and a valve core, wherein the valve body is provided with a cavity with an opening at one end, the electric valve is characterized in that the cavity comprises a first cavity, a second cavity and a third cavity, wherein the inner diameter of the first cavity is larger than that of the second cavity, the inner diameter of the second cavity is larger than that of the third cavity, a first step part is formed between the first cavity and the second cavity, a second step part is formed between the second cavity and the third cavity, a blocking part is arranged at one end, far away from the first step part, of the first cavity, the blocking part covers at least one part of the first cavity, so that one part of the first cavity is a clamping cavity, the valve body is further provided with at least one limiting hole, the limiting hole penetrates through the blocking part, one end of the limiting hole is communicated with the first cavity, and the minimum inner diameter of the opening end, far away from the first step part, of the first cavity is smaller than that of the first cavity, the minimum inner diameter of the first cavity far away from the opening end of the first step part is larger than the inner diameter of the second cavity;
the valve core comprises a valve seat assembly, the valve seat assembly comprises a first valve seat, the first valve seat is provided with a first seat body portion, the first seat body portion is further provided with a positioning groove hole, the side, corresponding to the positioning groove hole, of the first seat body portion is accommodated in the clamping cavity, the positioning groove hole is opposite to the limiting hole, the first valve seat and the valve body are radially limited through a fixing pin, and a part of the fixing pin is located in the limiting hole and the positioning groove hole.
2. The electric valve of claim 1, wherein the shape of the first seat portion corresponds to an opening end of the first cavity away from the first step portion, a length (L1) of the first seat portion between two opposite sides of the corresponding side of the positioning slot hole is greater than a length (L2) between the other two sides, the number of the limiting holes is two, the limiting holes are respectively located at two opposite sides, and the first seat portion and the blocking portion are in clearance fit.
3. The electrically operated valve of claim 2, wherein the first seat further comprises a second seat portion and a third seat portion, at least a portion of the first seat portion is engaged with an inner wall of the first chamber, at least a portion of the second seat portion is engaged with an inner wall of the second chamber, at least a portion of the third seat portion is engaged with an inner wall of the third chamber, a first groove is further disposed in the second seat portion, a second groove is further disposed in the third seat portion, a first sealing ring is disposed between the first groove and the inner wall of the second chamber, and a second sealing ring is disposed between the second groove and the inner wall of the third chamber.
4. The electrically operated valve according to claim 3, wherein an elastic member is provided between a lower end surface of the first seat portion and the first stepped portion, the elastic member being in a compressed state.
5. A heat exchanger assembly comprising a heat exchanger and an electrically operated valve, said electrically operated valve being fixedly mounted to said heat exchanger, wherein said electrically operated valve is the electrically operated valve of any one of claims 1 to 4, and wherein an inlet of said electrically operated valve is in communication with an inlet of one of the flow paths of said heat exchanger.
6. The heat exchanger assembly according to claim 5, wherein the valve body is fixed to the heat exchanger by welding, the valve body comprises a first valve body portion and a second valve body portion, the height of the first valve body portion is larger than that of the second valve body portion, the second valve body portion is provided with a first interface hole and a second interface hole, the first cavity, the second cavity, the third cavity and the limiting hole are arranged in the first valve body portion, and the first interface hole and the second interface hole are inlets and outlets of one flow path of the heat exchanger.
7. The heat exchanger assembly of claim 6, wherein the valve body is further provided with a through bore, at least a portion of the through bore being located in the first valve body portion and at least a portion of the through bore being located in the second valve body portion, the through bore communicating the second interface bore and the second chamber.
8. The heat exchanger assembly of claim 7, wherein the port of the first interface port and the port of the second interface port are located in a same plane of the second valve body portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711169869.9A CN109812594B (en) | 2017-11-21 | 2017-11-21 | Electrically operated valve and heat exchanger assembly with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711169869.9A CN109812594B (en) | 2017-11-21 | 2017-11-21 | Electrically operated valve and heat exchanger assembly with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109812594A CN109812594A (en) | 2019-05-28 |
| CN109812594B true CN109812594B (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711169869.9A Active CN109812594B (en) | 2017-11-21 | 2017-11-21 | Electrically operated valve and heat exchanger assembly with same |
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| Country | Link |
|---|---|
| CN (1) | CN109812594B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4011889A (en) * | 1975-12-11 | 1977-03-15 | Chemetron Corporation | Piston valve |
| CN2773419Y (en) * | 2005-03-04 | 2006-04-19 | 彭国生 | Detechable electric valve |
| CN201339725Y (en) * | 2009-01-23 | 2009-11-04 | 浙江鸿森机械有限公司 | Spacing ring for valve and valve adopting spacing ring |
| CN102889415B (en) * | 2012-09-25 | 2015-04-15 | 乐清市奥格节能自控系统有限公司 | Electric valve for central heating temperature control |
| CN203215021U (en) * | 2013-04-16 | 2013-09-25 | 佛山市三俊电子股份有限公司 | Electric valve |
| CN203363281U (en) * | 2013-07-02 | 2013-12-25 | 浙江华益机械有限公司 | T-joint electrically operated valve |
| CN204328143U (en) * | 2014-12-25 | 2015-05-13 | 佛山市浪鲸洁具有限公司 | A kind of simple and reliable electric valve |
| CN205446867U (en) * | 2016-03-19 | 2016-08-10 | 佛山市云米电器科技有限公司 | Motorised valve structure |
| CN205896325U (en) * | 2016-06-24 | 2017-01-18 | 叶赛花 | Flexible water outlet faucet rotates |
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2017
- 2017-11-21 CN CN201711169869.9A patent/CN109812594B/en active Active
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| Publication number | Publication date |
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| CN109812594A (en) | 2019-05-28 |
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Effective date of registration: 20201130 Address after: 312500 Technology Center building of Sanhua Industrial Park, Meizhu Town, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG SANHUA INTELLIGENT CONTROLS Co.,Ltd. Address before: 310018 No. 12, No. 289-2, Xiasha Economic Development Zone, Hangzhou, Zhejiang Patentee before: Hangzhou Sanhua Research Institute Co.,Ltd. |
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