CN218031509U

CN218031509U - Two-way solenoid valve and air conditioning unit

Info

Publication number: CN218031509U
Application number: CN202121094154.3U
Authority: CN
Inventors: 熊匀均
Original assignee: Dunan Environment Technology Co Ltd
Current assignee: Dunan Environment Technology Co Ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-12-13
Anticipated expiration: 2031-05-20

Abstract

The utility model relates to a refrigeration technology field especially relates to a two-way solenoid valve and air conditioning unit. A two-way electromagnetic valve comprises a valve body assembly and a valve core assembly, wherein a first communicating port and a second communicating port are respectively formed in two sides of the valve body assembly, and the valve body assembly is provided with a valve cavity; and defining a plane perpendicular to the axes of the first communication port and the second communication port as a first plane, wherein when the two-way solenoid valve is in a first position, along the axial direction of the first communication port and the second communication port, the projection of the valve core assembly on the first plane is positioned outside the projection of the first communication port and the second communication port on the first plane. The utility model has the advantages that: the flow resistance of the medium can be reduced, so that the medium can more smoothly pass through the two-way electromagnetic valve, and the flow pressure loss of the medium is reduced.

Description

Two-way solenoid valve and air conditioning unit

Technical Field

The utility model relates to a refrigeration technology field especially relates to a two-way solenoid valve and air conditioning unit.

Background

The bidirectional solenoid valve is usually installed in an air conditioning unit for realizing bidirectional circulation of a medium.

When a medium enters from the first communication port or the second communication port, the existing two-way electromagnetic valve can be blocked by the valve core assembly, and the flow resistance of the medium is increased.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model discloses to above-mentioned technical problem, provide a two-way solenoid valve, technical scheme is as follows:

a two-way electromagnetic valve comprises a valve body assembly and a valve core assembly, wherein a first communicating port and a second communicating port are respectively formed in two sides of the valve body assembly, the valve body assembly is provided with a valve cavity, the valve core assembly is arranged in the valve cavity, and the valve core assembly can slide in the valve cavity to enable the first communicating port and the second communicating port to be communicated or separated; and defining a plane perpendicular to the axes of the first communication port and the second communication port as a first plane, wherein when the two-way solenoid valve is in a first position, along the axial direction of the first communication port and the second communication port, the projection of the valve core assembly on the first plane is positioned outside the projection of the first communication port and the second communication port on the first plane.

With the arrangement, the flow resistance of the medium can be reduced, so that the medium can more smoothly pass through the two-way electromagnetic valve, and the flow pressure loss of the medium is reduced.

In one embodiment, the first communication port and the second communication port are disposed to face each other, and an axis of the first communication port and an axis of the second communication port are disposed in a collinear manner.

With such an arrangement, the flow path in the valve chamber can be shortened, and the flow resistance of the medium can be further reduced.

In one embodiment, the valve body assembly includes a sleeve, a valve seat, and an intermediate end cap at one end of the valve seat, the sleeve being connected to the intermediate end cap and/or the valve seat.

In one embodiment, the valve body assembly includes a valve body, a valve seat fixed in the valve body, and a middle end cap disposed in the valve body, wherein the first and second communication ports penetrate the valve seat.

By the arrangement, the risk of leakage can be reduced.

In one embodiment, a first end cover and a second end cover are respectively arranged at two ends of the valve body assembly, the valve cavity includes a first cavity, a second cavity and a third cavity, the first cavity is formed by the first end cover and the valve core assembly in a matched mode, the second cavity is formed by the middle end cover and the valve core assembly in a matched mode, and the third cavity is formed by the valve core assembly and the second end cover in a matched mode.

So set up, first chamber is used for supplying most medium to flow, and second chamber and third chamber can form the pressure differential to promote the removal of case subassembly.

In one embodiment, the valve body assembly defines a first aperture and a second aperture, the first aperture communicating with the second chamber, the second aperture communicating with the third chamber.

According to the arrangement, high-pressure medium can be introduced into the second cavity or the third cavity, and the pressure is relieved through the first hole or the second hole, so that a pressure difference is formed between the second cavity and the third cavity.

In one embodiment, the middle end cover is provided with a mounting hole, the valve element assembly comprises a piston and a connecting rod, the piston is located between the second cavity and the third cavity, the connecting rod penetrates through the mounting hole and is connected with the piston, and the piston can slide along the inner wall of the valve body assembly in a sealing manner.

According to the arrangement, the two-way electromagnetic valve can work only by one piston, and the structure is simple.

In one embodiment, the valve core assembly further includes a slider, the slider is connected to the connecting rod, and the slider can enter between the first communication port and the second communication port and block the first communication port and the second communication port.

In one embodiment, the slider includes a first portion and a second portion abutting against each other, the first portion is close to the first communication port, the second portion is close to the second communication port, an elastic member is provided between the first portion and the second portion, and both ends of the elastic member abut against the first portion and the second portion, respectively.

With this arrangement, the elastic member can enhance the sealing performance of the first and second portions when the first and second communication ports are sealed.

The utility model discloses still provide following technical scheme:

an air conditioning unit comprises the bidirectional electromagnetic valve.

Compared with the prior art, the utility model discloses a when two-way solenoid valve is in the first position, be located first intercommunication mouth and second intercommunication mouth through the projection with the case subassembly on the first plane and be in the outside of the projection on the first plane for the medium is after getting into first intercommunication mouth or second intercommunication mouth, and the in-process that flows from second intercommunication mouth or second intercommunication mouth again does not receive blockking of case subassembly, can reduce the flow resistance of medium, reduces loss of pressure.

Drawings

Fig. 1 is a cross-sectional view of the two-way solenoid valve provided by the present invention in a first position;

FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

fig. 3 is a right side view of the two-way solenoid valve.

The symbols in the figures represent the following:

100. a two-way solenoid valve; 10. a valve body assembly; 101. a first hole; 102. a second hole; 103. a first capillary tube; 104. a second capillary; 11. a valve cavity; 111. a first chamber; 112. a second chamber; 113. a third chamber; 12. a first communication port; 121. a first connecting pipe; 13. a second communication port; 131. a second connecting pipe; 14. a first end cap; 15. a second end cap; 16. a middle end cover; 161. mounting holes; 17. a valve seat; 18. a valve body; 20. a valve core assembly; 21. a connecting rod; 22. a piston; 23. a slider; 231. a first part; 232. a second section; 233. an elastic member; 30. a pilot valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, the present invention provides a two-way solenoid valve 100 (hereinafter referred to as a solenoid valve 100) installed in an air conditioning unit for controlling the connection or disconnection of a pipeline.

The utility model discloses a solenoid valve 100 can be used for the air conditioning unit that needs bidirectional operation, for example, can install in the air conditioning unit that needs possess two kinds of functions of refrigeration mode and heating mode simultaneously, realizes the two-way flow of medium, and need not to switch over the pipeline. It should be explained that the medium of the present invention refers to a refrigerant.

Referring to fig. 1, the solenoid valve 100 includes a valve body assembly 10 and a valve core assembly 20, the valve body assembly 10 has a valve cavity 11, the valve body assembly 10 is provided with a first communicating opening 12 and a second communicating opening 13, and the valve core assembly 20 is provided in the valve cavity 11 and can slide in the valve cavity 11 to communicate or block the first communicating opening 12 and the second communicating opening 13.

Referring to fig. 2, a plane perpendicular to the axis of the first communication port 12 and the axis of the second communication port 13 is defined as a first plane, and when the solenoid valve 100 is in the first position, along the axial direction of the first communication port 12 and the second communication port 13, the projection of the valve core assembly 20 on the first plane is located outside the projection of the first communication port 12 and the second communication port 13 on the first plane, that is, when the solenoid valve 100 is in the first position, the medium enters from the first communication port 12 or the second communication port 13, and is not blocked by obstacles such as the valve core assembly 20, and when the medium flows out, the medium is not blocked by obstacles, so that the flow resistance of the medium can be reduced. It should be noted that the first position in the present invention refers to a position of the solenoid valve 100 in an open state.

Preferably, the first communication port 12 and the second communication port 13 are disposed to face each other, and the axis of the first communication port 12 and the axis of the second communication port 13 are disposed in a collinear manner, so that the flow stroke of the medium in the valve chamber 11 is reduced, and the flow loss of the medium is further reduced.

Referring to fig. 1, a first connection pipe 121 is disposed in the first connection port 12, a second connection pipe 131 is disposed in the second connection port 13, and the first connection pipe 121 and the second connection pipe 131 are respectively connected to a pipeline of the air conditioning unit.

The middle end cover 16 is arranged in the valve cavity 11, the first end cover 14 and the second end cover 15 are respectively arranged at two ends of the valve body assembly 10, the valve cavity 11 comprises a first cavity 111, a second cavity 112 and a third cavity 113, the first end cover 14, the valve body assembly 10 and the second end cover 15 are matched to form the first cavity 111, the valve core assembly 20, the middle end cover 16 and the valve body assembly 10 form the second cavity 112, and the valve core assembly 20, the valve body assembly 10 and the second end cover 15 form the third cavity 113. The first communication port 12 and the second communication port 13 extend into the first chamber 111, respectively, and when the two-way solenoid valve 100 is in the first position, the first communication port 12 and the second communication port 13 communicate with the first chamber 111 for the flow of the medium.

In one embodiment, the valve body assembly 10 includes a valve seat 17 and a sleeve (not shown), the first communication port 12 and the second communication port 13 are opened on the valve seat 17, the intermediate cover 16 is located at one end of the valve seat 17, and the sleeve is connected to the intermediate cover 16 and/or the valve seat 17. In the present embodiment, the valve seat 17 is made of copper, and the sleeve is made of stainless steel, but in other embodiments, the materials of the valve seat 17 and the sleeve are not limited to the above-mentioned materials. The middle end cover 16 is fixedly connected to the sleeve through welding, the sleeve is fixedly connected to the valve seat 17 through welding, and the middle end cover 16 and the valve seat 17 can be welded and fixed together or not welded together. Preferably, the valve seat 17 is integrally formed with the first end cap 14, or the valve seat 17 is separately formed from the first end cap 14 and fixed by welding.

Referring to fig. 1, in another embodiment, the valve body assembly 10 includes a valve seat 17 and a valve body 18, the valve seat 17 is welded and fixed in the valve body 18, the first communication port 12 and the second communication port 13 are opened on the valve body 18 and penetrate through the valve seat 17, the middle end cap 16 is welded in the valve body 18 in a sealing manner, and the valve body 18 is an integral body, which can reduce welding points and reduce the risk of leakage. In this embodiment, the valve seat 17 and the valve body 18 are both made of stainless steel, but in other embodiments, the material of the valve seat 17 and the valve body 18 is not limited to stainless steel.

The valve body assembly 10 is provided with a first hole 101 and a second hole 102, the first hole 101 is communicated with the second cavity 112, and the second hole 102 is communicated with the third cavity 113. A first capillary tube 103 is arranged in the first hole 101, a second capillary tube 104 is arranged in the second hole 102, and the first capillary tube 103 and the second capillary tube 104 are connected to a pilot valve 30 described below, so that a pressure difference is formed between two sides of the valve core assembly 20 to push the valve core assembly 20 to move.

The middle end cover 16 is provided with a mounting hole 161, a part of the valve core assembly 20 passes through the mounting hole 161, a part of the valve core assembly extends into the valve seat 17, and the other part of the valve core assembly extends into the second chamber 112.

The valve core assembly 20 includes a connecting rod 21 and a piston 22, the connecting rod 21 is disposed through the mounting hole 161, the piston 22 is disposed in the sleeve or the valve body 18, the piston 22 can move along the inner wall of the sleeve or the valve body 18 in a sealing manner, the piston 22 is located between the second cavity 112 and the third cavity 113, that is, the piston 22 separates the second cavity 112 from the third cavity 113 to prevent the media from streaming. When the electromagnetic valve 100 needs to be closed, high-pressure medium enters the third cavity 113 from the second capillary 104, and medium in the second cavity 112 flows out from the first capillary 103, so that the piston 22 is pushed to move towards the direction close to the valve seat 17; when the solenoid valve 100 needs to be opened, high-pressure medium enters the second cavity 112 from the first capillary 103, and medium in the third cavity 113 flows out from the second capillary 104, so that the piston 22 is pushed to move in a direction away from the valve seat 17.

The valve core assembly 20 further comprises a slider 23, the slider 23 is connected to one end of the connecting rod 21 far away from the piston 22, and the slider 23 can block or unblock the first communication port 12 and the second communication port 13 along with the movement of the piston 22.

The slider 23 includes a first portion 231 and a second portion 232, the first portion 231 abuts against the second portion 232, the first portion 231 is provided near the first communication port 12, and the second portion 232 is provided near the second communication port 13. The first portion 231 can close the first communication port 12, and the second portion 232 can close the second communication port 13.

An elastic member 233 is provided between the first portion 231 and the second portion 232, one end of the elastic member 233 abuts against the first portion 231, and the other end abuts against the second portion 232, and the elastic member 233 makes the first portion 231 and the second portion 232 respectively abut against the end surface of the first communication port 12 and the end surface of the second communication port 13, so as to enhance the sealing property of the sealing.

Referring to fig. 3, the solenoid valve 100 further includes a pilot valve 30, and the pilot valve 30 is disposed outside the valve body assembly 10 and connected to the first capillary 103 and the second capillary 104. By reversing the pilot valve 30, the pressure difference across the piston 22 is controlled, thereby pushing the piston 22.

The utility model also provides an air conditioning unit, including foretell solenoid valve 100.

In the working process, when the electromagnetic valve 100 needs to be closed, the pilot valve 30 is reversed, the high-pressure medium is introduced into the third cavity 113 from the second capillary 104, the medium in the second cavity 112 flows out from the first capillary 103, the piston 22 is pushed to move towards the direction close to the valve seat 17, and the slider 23 blocks the first communication port 12 and the second communication port 13; when the electromagnetic valve 100 needs to be opened, the pilot valve 30 is reversed, the high-pressure medium is introduced into the second chamber 112 from the first capillary 103, the medium in the third chamber 113 flows out from the second capillary 104, the piston 22 is pushed to move in a direction away from the valve seat 17, and the slider 23 releases the blocking of the first communication port 12 and the second communication port 13. When the medium enters from the first communication port 12 and the second communication port 13, the medium is not blocked by the valve core assembly 20, so that the flow resistance of the medium can be reduced, and the pressure loss can be reduced.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A two-way electromagnetic valve comprises a valve body assembly (10) and a valve core assembly (20), wherein a first communicating port (12) and a second communicating port (13) are respectively formed in two sides of the valve body assembly (10), the valve body assembly (10) is provided with a valve cavity (11), the valve core assembly (20) is arranged in the valve cavity (11), and the valve core assembly (20) can slide in the valve cavity (11) to enable the first communicating port (12) and the second communicating port (13) to be communicated or separated;

the two-way electromagnetic valve is characterized in that a plane perpendicular to the axis of the first communication port (12) and the axis of the second communication port (13) is defined as a first plane, and when the two-way electromagnetic valve is in a first position, along the axial direction of the first communication port (12) and the second communication port (13), the projection of the valve core assembly (20) on the first plane is located outside the projection of the first communication port (12) and the second communication port (13) on the first plane.

2. A two-way solenoid valve according to claim 1, characterised in that said first communication port (12) and said second communication port (13) are arranged opposite one another, and the axis of the first communication port (12) is arranged co-linearly with the axis of said second communication port (13).

3. A two-way solenoid valve according to claim 1, characterised in that the valve body assembly (10) comprises a sleeve, a valve seat (17) and an intermediate end cap (16), the intermediate end cap (16) being located at one end of the valve seat (17), the sleeve being connected to the intermediate end cap (16) and/or the valve seat (17).

4. The two-way solenoid valve according to claim 1, characterized in that the valve body assembly (10) comprises a valve body (18), a valve seat (17) and an intermediate end cap (16), the valve seat (17) being fixed in the valve body (18), the first and second communication ports (12, 13) passing through the valve seat (17), the intermediate end cap (16) being provided in the valve body (18).

5. The two-way electromagnetic valve according to claim 4, wherein a first end cover (14) and a second end cover (15) are respectively disposed at two ends of the valve body assembly (10), the valve chamber (11) includes a first chamber (111), a second chamber (112) and a third chamber (113), the first chamber (111) is formed by the first end cover (14) and the valve core assembly (20) being matched, the second chamber (112) is formed by the middle end cover (16) and the valve core assembly (20) being matched, and the third chamber (113) is formed by the valve core assembly (20) and the second end cover (15) being matched.

6. The two-way solenoid valve according to claim 5, characterized in that said valve body assembly (10) defines a first orifice (101) and a second orifice (102), said first orifice (101) communicating with said second chamber (112), said second orifice (102) communicating with said third chamber (113).

7. The two-way electromagnetic valve according to claim 5, wherein the middle end cover (16) is provided with a mounting hole (161), the valve core assembly (20) includes a piston (22) and a connecting rod (21), the piston (22) is located between the second cavity (112) and the third cavity (113), the connecting rod (21) is inserted into the mounting hole (161) and connected with the piston (22), and the piston (22) can slide along the inner wall of the valve body assembly (10) in a sealing manner.

8. The two-way solenoid valve according to claim 7, characterized in that the spool assembly (20) further comprises a slider (23), the slider (23) being connected to the connecting rod (21), the slider (23) being able to enter between the first communication port (12) and the second communication port (13) and block the first communication port (12) and the second communication port (13).

9. The two-way solenoid valve according to claim 8, wherein the slider (23) comprises a first portion (231) and a second portion (232) abutting against each other, the first portion (231) being adjacent to the first communication opening (12), the second portion (232) being adjacent to the second communication opening (13), an elastic member (233) being provided between the first portion (231) and the second portion (232), and both ends of the elastic member (233) abutting against the first portion (231) and the second portion (232), respectively.

10. Air conditioning assembly, characterized in that it comprises a two-way solenoid valve according to any one of claims 1 to 9.