CN216200948U

CN216200948U - Four-way valve

Info

Publication number: CN216200948U
Application number: CN202122384840.0U
Authority: CN
Inventors: 孙俊杰; 王涛
Original assignee: Dunan Environment Technology Co Ltd
Current assignee: Dunan Environment Technology Co Ltd
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2022-04-05
Anticipated expiration: 2031-09-28

Abstract

The utility model provides a four-way valve, comprising: the valve comprises a valve body, a valve cavity is arranged in the valve body, and an avoidance port is arranged on the side wall of the valve body; the valve seat is arranged in the valve cavity, is connected with the periphery of the avoidance port and is provided with an assembly hole, and the assembly hole is communicated with the valve cavity; one end of the connecting pipe penetrates into the assembling hole; wherein, dodge mouth, pilot hole and takeover and be a plurality ofly, a plurality of pilot holes and a plurality of mouthful one-to-one ground intercommunication of dodging, a plurality of takeovers penetrate a plurality of pilot holes one-to-one, and adjacent two distance of dodging between the mouth is W1, and the wall thickness of takeover is T, and W1/T is 3 ~ 4. By adopting the scheme, the ratio of the distance W1 between two adjacent avoidance ports to the wall thickness T of the connecting pipe is limited in the range, so that the welding quality of the connecting pipe and the valve seat can be improved, and the assembling difficulty between the connecting pipe and the valve seat can be reduced.

Description

Four-way valve

Technical Field

The utility model relates to the technical field of reversing valves, in particular to a four-way valve.

Background

In a heat pump type air conditioner, a four-way valve is a key component for switching the refrigerating cycle working condition and the heating cycle working condition of a system. The interconversion between the refrigeration and the heating is realized through the switching of the four-way valve. The four-way valve mainly comprises an electromagnetic coil, a pilot valve and a main valve, wherein the main valve is switched to switch the flowing direction of the refrigerating working medium under the combined action of the electromagnetic coil and the pilot valve, so that the interconversion between the refrigeration and the heating of the air conditioner is realized.

The main valve in the four-way valve is composed of a valve body, a valve seat, a connecting pipe and the like, the valve body, the valve seat and the connecting pipe are connected in a welding mode, an avoiding opening is formed in the side wall of the valve body, one end of the connecting pipe is communicated with the avoiding opening of the valve body, and the other end of the connecting pipe is communicated with an external structure, so that mutual conversion between air-conditioning refrigeration and heating is achieved. In the prior art, for 3.2-4.5 KW models, the distance between two adjacent valve body avoiding openings communicated with the connecting pipe can affect the performance of the four-way valve. The size relation between the avoiding port of the valve body and the connecting pipe in the existing four-way valve is not limited reasonably, and the distance between the two adjacent avoiding ports of the valve body needs to be further researched.

SUMMERY OF THE UTILITY MODEL

The utility model provides a four-way valve, which aims to optimize the distance between two adjacent valve body avoidance ports in the prior art, so that the working performance of the four-way valve is improved.

In order to achieve the above object, the present invention provides a four-way valve, comprising: the valve comprises a valve body, a valve cavity is arranged in the valve body, and an avoidance port is arranged on the side wall of the valve body; the valve seat is arranged in the valve cavity, is connected with the periphery of the avoidance port and is provided with an assembly hole, and the assembly hole is communicated with the valve cavity; one end of the connecting pipe penetrates into the assembling hole; wherein, dodge mouth, pilot hole and takeover and be a plurality ofly, a plurality of pilot holes and a plurality of mouthful one-to-one ground intercommunication of dodging, a plurality of takeovers penetrate a plurality of pilot holes one-to-one, and adjacent two distance of dodging between the mouth is W1, and the wall thickness of takeover is T, and W1/T is 3 ~ 4.

Further, the distance between two adjacent assembly holes is W2, and W2 is not more than W1.

Furthermore, the distance between the axes of two adjacent connecting pipes is L, and L is more than or equal to 11mm and less than or equal to 13 mm.

Furthermore, T is more than or equal to 0.65mm and less than or equal to 0.80 mm.

Furthermore, T is more than or equal to 0.70mm and less than or equal to 0.75 mm.

Furthermore, the assembly hole comprises an inner hole section and an outer hole section which are communicated with each other, the diameter of the inner hole section is smaller than that of the outer hole section, the inner hole section is communicated with the valve cavity, one end of the connecting pipe penetrates into the outer hole section, a transition part of the inner hole section and the outer hole section is provided with a limiting surface, the limiting surface is matched with the connecting pipe in a stopping way, the diameter of the inner hole section is A, and A is not less than 7.9mm and not more than 8.1 mm.

Further, the diameter of the inner hole section is larger than the inner diameter of the adapter tube.

Further, the valve body is of a tubular structure, and a plurality of avoidance ports are arranged at intervals along the axial direction of the valve body.

Further, the valve body, the valve seat and the connecting pipe are fixedly connected through welding.

Further, the four-way valve further comprises a sliding block, the sliding block is slidably arranged in the valve cavity, the sliding block is provided with a communicating groove, and the communicating groove is used for communicating at least two assembling holes.

The technical scheme of the utility model provides a four-way valve, which comprises: the valve comprises a valve body, a valve cavity is arranged in the valve body, and an avoidance port is arranged on the side wall of the valve body; the valve seat is arranged in the valve cavity, is connected with the periphery of the avoidance port and is provided with an assembly hole, and the assembly hole is communicated with the valve cavity; one end of the connecting pipe penetrates into the assembling hole; wherein, dodge mouth, pilot hole and takeover and be a plurality ofly, a plurality of pilot holes and a plurality of mouthful one-to-one ground intercommunication of dodging, a plurality of takeovers penetrate a plurality of pilot holes one-to-one, and adjacent two distance of dodging between the mouth is W1, and the wall thickness of takeover is T, and W1/T is 3 ~ 4. By adopting the scheme, the ratio of the distance W1 between two adjacent avoidance ports to the wall thickness T of the connecting pipe is limited in the range, so that the welding quality of the connecting pipe and the valve seat can be improved, and the assembling difficulty between the connecting pipe and the valve seat can be reduced. When the ratio of the distance W1 between two adjacent avoidance ports to the wall thickness T of the connecting pipe is greater than the above range, and the wall thickness T of the connecting pipe is kept unchanged, the distance W1 between two adjacent avoidance ports is increased, which increases the assembly difficulty of the connecting pipe and the valve seat during assembly; when the ratio of the distance W1 between two adjacent avoidance ports to the wall thickness T of the connecting pipe is smaller than the above range, and the wall thickness T of the connecting pipe is kept unchanged, the distance W1 between two adjacent avoidance ports becomes smaller, the leakage amount between two adjacent avoidance ports can be affected, and the welding gap between the connecting pipe and the valve seat becomes larger, resulting in increased leakage risk during welding.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 illustrates a cross-sectional view of a four-way valve provided by an embodiment of the present invention;

FIG. 2 shows a block diagram of the valve seat of FIG. 1;

fig. 3 shows a cross-sectional view of the valve seat of fig. 2.

Wherein the figures include the following reference numerals:

10. a valve body; 11. a valve cavity;

20. a valve seat; 21. an assembly hole; 211. an inner bore section; 212. an outer bore section; 213. a limiting surface;

30. and (6) taking over.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, an embodiment of the present invention provides a four-way valve, including: the valve comprises a valve body 10, wherein a valve cavity 11 is formed in the valve body 10, and an avoidance port is formed in the side wall of the valve body 10; the valve seat 20 is arranged in the valve cavity 11, the valve seat 20 is connected with the periphery of the avoidance opening, the valve seat 20 is provided with a mounting hole 21, and the mounting hole 21 is communicated with the valve cavity 11; a connection pipe 30, one end of the connection pipe 30 penetrating into the fitting hole 21; wherein, dodge mouth, pilot hole 21 and takeover 30 and be a plurality ofly, a plurality of pilot holes 21 and a plurality of mouthful one-to-one of dodging communicate, a plurality of takeovers 30 penetrate a plurality of pilot holes 21 one-to-one, and adjacent two distance of dodging between the mouth is W1, and the wall thickness of takeover 30 is T, and W1/T is 3 ~ 4.

By adopting the scheme, the ratio of the distance W1 between two adjacent avoidance ports to the wall thickness T of the connecting pipe is limited in the range, so that the welding quality of the connecting pipe 30 and the valve seat 20 can be improved, and the assembling difficulty between the connecting pipe 30 and the valve seat 20 can be reduced. When the ratio of the distance W1 between two adjacent avoidance ports to the wall thickness T of the connection pipe 30 is greater than the above range, and the wall thickness T of the connection pipe 30 remains unchanged, the distance W1 between two adjacent avoidance ports becomes larger, which increases the difficulty in assembling the connection pipe 30 and the valve seat 20; when the ratio of the distance W1 between two adjacent avoidance ports to the wall thickness T of the connection pipe 30 is smaller than the above range, and the wall thickness T of the connection pipe 30 is kept unchanged, the distance W1 between two adjacent avoidance ports becomes smaller, which affects the leakage amount between two adjacent avoidance ports, and the welding gap between the connection pipe 30 and the valve seat 20 becomes larger, resulting in an increased leakage risk during welding.

Wherein, the distance between two adjacent assembly holes 21 is W2, and W2 is not more than W1. By defining the distance W2 between the adjacent two fitting holes 21 and the distance W1 between the adjacent two avoidance ports within the above range, it is possible to ensure that the adapter tube 30 smoothly passes through the avoidance ports at the time of fitting, and to improve the accuracy of fitting with the fitting holes 21. If W2 > W1, the distance between two adjacent fitting holes 21 is greater than the distance between two adjacent escape openings, which may cause a position error of the adapter tube 30 with the fitting hole 21 after passing through the escape openings, thereby affecting the fitting between the adapter tube 30 and the fitting hole 21.

Specifically, the distance between the axes of two adjacent connecting pipes 30 is L, and L is more than or equal to 11mm and less than or equal to 13 mm. Defining the distance L between the axes of the adjacent two connection pipes 30 within the above numerical range facilitates the assembly of the connection pipes 30 with the valve body 10 and the valve seat 20, and can improve the workability of the four-way valve. Specifically, L is preferably 12 mm.

Furthermore, T is more than or equal to 0.65mm and less than or equal to 0.80 mm. By limiting the wall thickness T of the connecting pipe 30 within the numerical range, the structural strength of the four-way valve can be ensured and the working stability of the four-way valve can be improved under the condition of meeting the working performance of the connecting pipe 30.

Further, in the present embodiment, T is 0.70 mm. ltoreq.T.ltoreq.0.75 mm. By limiting the wall thickness T of the connecting pipe 30 within the numerical range, the structural strength of the four-way valve can be ensured and the working stability of the four-way valve can be improved under the condition of meeting the working performance of the connecting pipe 30.

Specifically, the assembly hole 21 comprises an inner hole section 211 and an outer hole section 212 which are communicated with each other, the diameter of the inner hole section 211 is smaller than that of the outer hole section 212, the inner hole section 211 is communicated with the valve cavity 11, one end of the connecting pipe 30 penetrates into the outer hole section 212, a transition part of the inner hole section 211 and the outer hole section 212 is provided with a limiting surface 213, the limiting surface 213 is in backstop fit with the connecting pipe 30, the diameter of the inner hole section 211 is A, and A is not less than 7.9mm and not more than 8.1 mm. Through setting up interior hole section 211 and spacing face 213, when the assembly, can avoid taking over 30 to pass interior hole section 211 when the assembly, and can guarantee spacing face 213 and take over 30 contact to inject the depth of insertion of taking over 30. The outer hole section 212 is provided to guide the pipe 30 for assembly and installation. Limiting the diameter a of the bore section 211 to the above value range ensures that the fluid passing through the nozzle 30 meets the operational requirements.

Wherein the diameter of the inner bore section 211 is larger than the inner diameter of the nipple 30. With the above arrangement, setting the diameter of the inner bore section 211 to be larger than the inner diameter of the adapter tube 30 can prevent the inner bore section 211 from obstructing the flow of the fluid in the adapter tube 30, thereby preventing the influence on the flow of the fluid through the adapter tube 30.

As shown in fig. 1, the valve body 10 is a tubular structure, and a plurality of avoidance ports are arranged at intervals along the axial direction of the valve body 10. The valve body 10 is arranged into a tubular structure and can be processed by adopting the existing tubular material, so that the production cost is reduced; a plurality of avoidance ports are arranged at intervals along the axial direction of the valve body 10, so that the structure is more compact and the assembly is convenient.

In the present embodiment, the valve body 10, the valve seat 20, and the nipple 30 are fixedly coupled by welding. The valve body 10, the valve seat 20 and the connecting pipe 30 are connected in a welding mode, and the valve is more stable and reliable.

Specifically, the four-way valve further comprises a slider which is slidably disposed in the valve chamber 11, and the slider is provided with a communicating groove for communicating at least two assembling holes 21. Through the arrangement, when reversing, the reversing of the four-way valve can be realized through the communication groove and the different assembly holes 21.

The four-way valve is positioned in a refrigerant loop formed by an indoor heat exchanger, an outdoor heat exchanger and the like and comprises three major parts, namely an electromagnetic coil, a main valve and a pilot valve, wherein end covers are welded at two ends of a valve body 10 of the main valve, a sliding block is arranged in the valve body 10, the sliding block is respectively connected with a piston part through a guide frame, and a cavity of the main valve is divided into a left cavity, a middle cavity and a right cavity by the piston part; the upper part of the sliding block is processed with steps and is matched with the guide frame through the steps, the lower part of the sliding block is provided with an inner cavity, one group of connecting pipes 30 form closed fluid circulation through the inner cavity, the other group of connecting pipes 30 form another closed fluid circulation through the inner cavity of the valve body 10, and the two groups of fluid circulation paths are separated by the main body part of the sliding block. When the air conditioner needs to refrigerate, under the action of the pilot valve, a pressure difference is formed between the left chamber and the right chamber of the main valve, the pressure difference between the left chamber and the right chamber of the main valve pushes the sliding block and the two pistons to move, so that a refrigerant in the system flows from the exhaust port of the compressor to the suction port of the compressor, and the system is in a refrigerating working state; when the air conditioner needs to be heated, a pressure difference is formed between the left chamber and the right chamber of the main valve under the action of the pilot valve, the pressure difference pushes the sliding block and the two pistons to move in opposite directions, so that the refrigerant automatically flows to the suction port of the compressor, and the system is in a heating working state.

The four-way valve provided by the scheme can be used for cold and hot circulation of an air conditioning system, can meet the requirements of 3.2 KW-4.5 KW refrigerating capacity machine types, and can be applied to machine types with higher power.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

Claims

1. A four-way valve, comprising:

the valve body (10), a valve cavity (11) is arranged in the valve body (10), and an avoidance port is arranged on the side wall of the valve body (10);

the valve seat (20) is arranged in the valve cavity (11), the valve seat (20) is connected with the periphery of the avoidance opening, the valve seat (20) is provided with an assembly hole (21), and the assembly hole (21) is communicated with the valve cavity (11);

a connection pipe (30), one end of the connection pipe (30) penetrating into the assembly hole (21);

wherein, dodge the mouth pilot hole (21) with take over (30) and be a plurality ofly, a plurality of pilot hole (21) and a plurality of dodge mouthful intercommunication one-to-one, a plurality of take over (30) penetrate a plurality of one-to-one pilot hole (21), adjacent two distance between the dodging mouth is W1, the wall thickness of taking over (30) is T, and W1/T is 3 ~ 4.

2. The four-way valve according to claim 1, wherein the distance between two adjacent assembly holes (21) is W2, W2 ≦ W1.

3. The four-way valve according to claim 1, wherein the distance between the axes of two adjacent connecting pipes (30) is L, and L is more than or equal to 11mm and less than or equal to 13 mm.

4. The four-way valve of claim 1, wherein T is 0.65mm ≤ and 0.80 mm.

5. The four-way valve of claim 4, wherein T is 0.70mm ≦ T ≦ 0.75 mm.

6. The four-way valve according to claim 1, wherein the assembly hole (21) comprises an inner hole section (211) and an outer hole section (212) which are communicated with each other, the diameter of the inner hole section (211) is smaller than that of the outer hole section (212), the inner hole section (211) is communicated with the valve cavity (11), one end of the connecting pipe (30) penetrates into the outer hole section (212), a transition part of the inner hole section (211) and the outer hole section (212) is provided with a limiting surface (213), the limiting surface (213) is matched with a stopper of the connecting pipe (30), and the diameter of the inner hole section (211) is A, 7.9mm is more than or equal to A and less than or equal to 8.1 mm.

7. The four-way valve according to claim 6, wherein the inner bore section (211) has a diameter larger than the inner diameter of the nipple (30).

8. The four-way valve according to claim 1, wherein the valve body (10) has a tubular structure, and a plurality of the avoidance ports are provided at intervals in an axial direction of the valve body (10).

9. Four-way valve according to claim 1, wherein the valve body (10), the valve seat (20) and the nipple (30) are fixedly connected by welding.

10. The four-way valve according to claim 1, further comprising a slider slidably disposed in the valve chamber (11), the slider having a communication groove for communicating at least two of the fitting holes (21).