Valve assembly, air conditioner outdoor unit and air conditioner

Abstract

The utility model provides a valve assembly, an air conditioner outdoor unit and an air conditioner. Wherein the valve assembly comprises a first connecting pipe, a filter and a stop valve, and one end of the first connecting pipe is used for being connected with the reversing valve; the filter comprises a shell, the shell is provided with a first connector and a second connector, and the first connector is welded and fixed to the other end of the first connecting pipe; the stop valve comprises a valve body which is provided with a third connector and a fourth connector. Wherein the second connector and the third connector are directly welded and fixed, or a second connecting pipe is arranged between the filter and the stop valve, and the two ends of the second connecting pipe are welded and fixed to the second connector and the third connector respectively. According to the scheme, the first connecting pipe and the first connector of the filter are directly welded and fixed, the second connector of the filter and the third connector of the stop valve can be directly welded and fixed or can be directly welded and fixed through the second connecting pipe, and a copper pipe is prevented from being used for switching connection, so that the cost is reduced. The manufacturing cost of the valve assembly of the air conditioner can be effectively reduced.

Description

Technical Field

[0001] This application relates to the technical field of air conditioners, and particularly to a valve assembly, an outdoor unit of an air conditioner, and an air conditioner. Background Art

[0002] Air conditioners have become one of the essential household appliances in people's daily lives. A valve assembly is provided between the indoor heat exchanger and the outdoor compressor of the air conditioner to control the flow rate of the refrigerant entering the outdoor compressor.

[0003] However, currently, the components of the valve assembly of the air conditioner need to be connected by copper pipes for transition, resulting in a relatively high manufacturing cost. Summary of the Utility Model

[0004] This application provides a valve assembly and an outdoor unit of an air conditioner, which can solve the problem of high manufacturing cost of the valve assembly of the air conditioner.

[0005] In a first aspect, this application provides a valve assembly installed between a reversing valve and an indoor heat exchanger. The valve assembly includes:

[0006] A first connecting pipe, one end of the first connecting pipe is used to connect the reversing valve;

[0007] A filter, the filter includes a housing, the housing has a first interface and a second interface, and the first interface is fixedly welded to the other end of the first connecting pipe; and

[0008] A stop valve, the stop valve includes a valve body, the valve body has a third interface and a fourth interface;

[0009] Wherein, the second interface is directly welded and fixed to the third interface, or a second connecting pipe is provided between the filter and the stop valve, and both ends of the second connecting pipe are respectively welded and fixed to the second interface and the third interface.

[0010] In the technical solution provided by this application, the first connecting pipe is directly welded and fixed to the first interface of the filter, and the second interface of the filter and the third interface of the stop valve can be directly welded and fixed or directly welded and fixed through the second connecting pipe, avoiding the use of copper pipes for transition connection. Therefore, it can effectively reduce the manufacturing cost of the valve assembly of the air conditioner.

[0011] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the first connecting pipe is a copper pipe or a stainless steel pipe, the material of the housing is copper or stainless steel, and the materials of the first connecting pipe and the housing are the same.

[0012] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, the first connecting pipe includes a first section, a second section and a third section connected in sequence, the first section is connected to the first interface, the second section has an angle with the first section, and the third section has an angle with the second section.

[0013] In combination with the first aspect and the above-mentioned implementations, in some possible implementations, the third section and the first section are in a spatially vertical relationship.

[0014] In combination with the first aspect and the above implementations, in some possible implementations, a portion of the first pipe extends into the first interface and is welded and fixed to the first interface;

[0015] Alternatively, a portion of the first interface extends into the first connecting pipe and is welded and fixed to the first connecting pipe.

[0016] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, when a second connecting pipe is provided between the filter and the stop valve, a portion of the second connecting pipe extends into the second interface and is welded and fixed to the second interface, or a portion of the second interface extends into the second connecting pipe and is welded and fixed to the second connecting pipe.

[0017] In combination with the first aspect and the above-mentioned implementation methods, in some possible implementation methods, when a second connecting pipe is provided between the filter and the stop valve, a portion of the second connecting pipe extends into the third interface and is welded and fixed to the third interface, or a portion of the third interface extends into the second connecting pipe and is welded and fixed to the second connecting pipe.

[0018] In combination with the first aspect and the above-mentioned implementations, in some possible implementations, the valve body includes a shell portion and a bushing fixedly connected to the shell portion, the bushing defines the third interface, and the fourth interface is formed on the shell portion.

[0019] In combination with the first aspect and the above-mentioned implementations, in some possible implementations, when a second connecting pipe is provided between the filter and the stop valve, a portion of the second connecting pipe extends into the bushing and is welded and fixed to the bushing, or a portion of the bushing extends into the second connecting pipe and is welded and fixed to the second connecting pipe.

[0020] Combined with the first aspect and the above implementation manners, in some possible implementation manners, when the second interface is directly welded and fixed to the third interface, a part of the second interface extends into the bushing and is welded and fixed to the bushing, or a part of the bushing extends into the second interface and is welded and fixed to the second interface.

[0021] Combined with the first aspect and the above implementation manners, in some possible implementation manners, when a second connecting pipe is provided between the filter and the stop valve, the second connecting pipe, the valve body, and the housing are made of the same material.

[0022] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the valve assembly further includes:

[0023] A third connecting pipe, one end of the third connecting pipe is welded and fixed to the fourth interface, and the other end of the third connecting pipe is used to connect to the indoor heat exchanger.

[0024] Combined with the first aspect and the above implementation manners, in some possible implementation manners, a part of the third connecting pipe extends into the fourth interface and is welded and fixed to the fourth interface;

[0025] Or, a part of the fourth interface extends into the third connecting pipe and is welded and fixed to the third connecting pipe.

[0026] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the valve assembly further includes:

[0027] A fourth connecting pipe, one end of the fourth connecting pipe is welded and fixed to the first connecting pipe, and the other end of the fourth connecting pipe is used to connect to the reversing valve.

[0028] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the valve assembly further includes:

[0029] A temperature sensing sleeve, fixedly arranged on the housing of the first connecting pipe or the filter, and used for installing a temperature sensor.

[0030] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the valve assembly further includes:

[0031] A sealing piece, arranged at one end of the third connecting pipe away from the filter;

[0032] A sealing piece connecting pipe, the inner diameter of the sealing piece connecting pipe is smaller than the inner diameter of the third connecting pipe, one end of the sealing piece connecting pipe is fixed to the sealing piece and communicated with the third connecting pipe, and the other end of the sealing piece connecting pipe is a closed end.

[0033] Combined with the first aspect and the above implementation manners, in some possible implementation manners, a structurally weak part is provided on the cover sheet connecting pipe.

[0034] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the structurally weak part is provided at one end of the cover sheet connecting pipe close to the cover sheet.

[0035] In a second aspect, the present application further provides an outdoor air conditioner, including:

[0036] A compressor;

[0037] A reversing valve connected to the compressor; and

[0038] The valve assembly according to any one of the first aspects above, where the first connecting pipe is connected to the reversing valve.

[0039] In a third aspect, the present application further provides an air conditioner, including the outdoor air conditioner according to any one of the second aspects above.

[0040] Combined with the second aspect, in some possible implementation manners, the outdoor air conditioner further includes a chassis and a valve mounting plate. The compressor is fixed to the chassis, the valve mounting plate is fixed to the chassis, and the valve assembly is fixed to the valve mounting plate.

[0041] Combined with the second aspect and the above implementation manners, in some possible implementation manners, a connecting part is provided on the outer periphery of the stop valve; the valve mounting plate is provided with a mounting groove;

[0042] Part of the stop valve is received in the mounting groove, and the connecting part is fixedly connected to the valve mounting plate on both sides of the mounting groove.

[0043] Combined with the second aspect and the above implementation manners, in some possible implementation manners, the number of the mounting grooves is multiple, and the multiple mounting grooves are arranged at intervals;

[0044] The valve assemblies are multiple, and the stop valves of the multiple valve assemblies are correspondingly arranged in the multiple mounting grooves. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a partial three-dimensional structural schematic diagram of an outdoor air conditioner provided by an embodiment of the present application;

[0046] Figure 2 is a structural schematic diagram of a valve assembly provided by an embodiment of the present application;

[0047] Figure 3 is Figure 2 a cross-sectional structural schematic diagram of a filter in the valve assembly;

[0048] Figure 4 yes Figure 2 A schematic diagram of the cross-sectional structure of a stop valve in a valve assembly;

[0049] Figure 5 is a structural schematic diagram of another valve assembly provided in an embodiment of the present application;

[0050] Figure 6 yes Figure 5 Schematic diagram of the cross-sectional structure of the valve assembly along line AA;

[0051] Figure 7 yes Figure 5 Schematic diagram of the cross-sectional structure of part I in the valve assembly.

[0052] The description of the reference numerals in the figures is as follows:

[0053] 100—valve assembly;

[0054] 110—first connecting pipe; 111—first section; 112—second section; 113—third section;

[0055] 120—filter; 121—housing; 122—first interface; 123—second interface;

[0056] 130—Second takeover;

[0057] 140—stop valve; 141—valve body; 1411—shell; 1412—bushing; 142—third interface; 143—fourth interface; 144—connecting part;

[0058] 150—third takeover;

[0059] 160—Fourth Takeover;

[0060] 170—temperature sensing sleeve;

[0061] 180—Seal film;

[0062] 190—sealing pipe; 191—weak part of the structure;

[0063] 200—Chassis;

[0064] 300—valve mounting plate; 310—mounting groove. DETAILED DESCRIPTION

[0065] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0067] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0068] In the description of the embodiments of this application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of this application can be understood according to specific circumstances.

[0069] In the description of the embodiments of this application, technical terms such as "first", "second", etc. are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity, specific order, or primary-secondary relationship of the indicated technical features. In the description of the embodiments of this application, the term "plurality" means two or more (including two). Similarly, "multiple groups" means two or more groups (including two groups), and "multiple pieces" means two or more pieces (including two pieces).

[0070] In the description of the embodiments of this application, the term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0071] Air conditioners have become one of the essential household appliances in people's daily lives. A valve assembly is provided between the indoor heat exchanger and the outdoor compressor of the air conditioner to control the flow rate of the refrigerant entering the outdoor compressor.

[0072] However, currently, copper pipes are required for transitional connection between the components of the valve assembly of the air conditioner, resulting in relatively high manufacturing costs.

[0073] To solve the above technical problems, embodiments of the present application provide a valve assembly, an outdoor unit of an air conditioner, and an air conditioner. The following provides a detailed introduction to a valve assembly, an outdoor unit of an air conditioner, and an air conditioner provided by embodiments of the present application with reference to the accompanying drawings of the specification.

[0074] The air conditioner provided by embodiments of the present application includes an indoor heat exchanger and an outdoor unit of the air conditioner. Refer to Figure 1 , the outdoor unit of the air conditioner includes a compressor (not shown in the figure), a reversing valve (not shown in the figure), and a valve assembly 100; the reversing valve is connected to the compressor, and the valve assembly 100 is installed between the reversing valve and the indoor heat exchanger. The indoor heat exchanger enables the effective exchange of heat between indoors and outdoors. In summer, the indoor heat exchanger transfers the heat indoors to the outdoors, reducing the indoor temperature; while in winter, the indoor heat exchanger absorbs the heat outdoors and transfers it indoors, increasing the indoor temperature. The compressor is a device that compresses the refrigerant from a low-temperature and low-pressure state to a high-temperature and high-pressure state. The reversing valve, also known as a four-way valve, is used to change the flow direction of the refrigerant in the air conditioner to achieve the switching of functions such as refrigeration and heating. In summer, when the air conditioner is in the refrigeration mode, the coolant transported in the valve assembly 100 is in a cold and low-pressure state. Therefore, the valve assembly 100 can be referred to as a low-pressure valve group. While in winter, when the air conditioner is in the refrigeration mode, the reversing valve changes the flow direction of the refrigerant, and the coolant transported in the valve assembly 100 is in a hot and high-pressure state. Therefore, the valve assembly 100 can be referred to as a high-pressure valve group.

[0075] Refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 , in some embodiments, the valve assembly 100 may include a first connecting pipe 110, a filter 120, and a stop valve 140. One end of the first connecting pipe 110 is used to connect to the reversing valve; the filter 120 includes a housing 121, and the housing 121 has a first interface 122 and a second interface 123. The first interface 122 is fixedly welded to the other end of the first connecting pipe 110; the stop valve 140 includes a valve body 141, and the valve body 141 has a third interface 142 and a fourth interface 143; wherein, as Figure 2 shown, the second interface 123 can be directly welded and fixed to the third interface 142, or, refer to Figure 5 , a second connecting pipe 130 can be provided between the filter 120 and the stop valve 140, and both ends of the second connecting pipe 130 are fixedly welded to the second interface 123 and the third interface 142 respectively. Among them, the stop valve 140 can adopt a manual valve, or can adopt an electric valve, a pneumatic valve, a hydraulic valve, etc. according to needs. The specification of the stop valve 140 can be selected according to the pipeline pressure and size of the valve assembly 100.

[0076] In the solution provided by the embodiment of the present application, the first connecting pipe 110 is directly welded and fixed to the first interface 122 of the filter 120. The second interface 123 of the filter 120 and the third interface 142 of the stop valve 140 can be directly welded and fixed or directly welded and fixed through the second connecting pipe 130, avoiding the use of copper pipes for transfer connection. Therefore, the manufacturing cost of the valve assembly 100 of the air conditioner can be effectively reduced.

[0077] In some embodiments, the first connecting pipe 110 can be a copper pipe or a stainless steel pipe, and the material of the housing 121 is copper or stainless steel. The materials of the first connecting pipe 110 and the housing 121 are the same. In other words, when the first connecting pipe 110 is a copper pipe, the material of the housing 121 is copper; when the first connecting pipe 110 is a stainless steel pipe, the material of the housing 121 is stainless steel. Among them, the heat transfer coefficient of stainless steel is similar to that of copper pipes. And compared with copper pipes, stainless steel has better corrosion resistance and can resist environments with higher chlorine content, ammonia nitrogen, and chemical oxygen demand (COD) content in medium water, reducing the risk of corrosion. And because the production cost of stainless steel is lower than that of copper, the price of stainless steel is cheaper than that of copper. Considering cost savings, the first connecting pipe 110 is preferably a stainless steel pipe, and the material of the housing 121 is preferably stainless steel.

[0078] In some embodiments, the first connecting pipe 110 includes a first section 111, a second section 112, and a third section 113 connected in sequence. The first section 111 is connected to the first interface 122, there is an angle between the second section 112 and the first section 111, and there is an angle between the third section 113 and the second section 112. In this way, the first connecting pipe 110 can adapt to outdoor units of different space sizes, improving the applicability of the valve assembly 100. Among them, the angle between the second section 112 and the first section 111, and the angle between the third section 113 and the second section 112 can be flexibly set according to actual needs.

[0079] In some embodiments, the third section 113 and the first section 111 are in a space perpendicular relationship. It can be understood that when the third section 113 is perpendicular to the first section 111, the second section 112 is inclined relative to the horizontal plane.

[0080] To ensure the reliable connection between the filter 120 and the first connecting pipe 110 and the stop valve 140, the first interface 122 of the filter 120 and the first connecting pipe 110, and the second interface 123 of the filter 120 and the stop valve 140 can be welded and connected in a lapping manner.

[0081] Specifically, for the filter 120 and the first connecting pipe 110, in some embodiments, a part of the first connecting pipe 110 can extend into the first interface 122 and be fixedly welded to the first interface 122, or a part of the first interface 122 can extend into the first connecting pipe 110 and be fixedly welded to the first connecting pipe 110.

[0082] For the filter 120 and the stop valve 140, the filter 120 and the stop valve 140 can be directly connected or indirectly connected through the second connecting pipe 130. In some embodiments, when the second interface 123 of the filter 120 is directly welded and fixed to the third interface 142 of the stop valve 140, a part of the second interface 123 extends into the third interface 142 and is fixedly welded to the third interface 142, or a part of the third interface 142 extends into the second interface 123 and is fixedly welded to the second interface 123.

[0083] In some embodiments, when there is a second connecting pipe 130 between the filter 120 and the stop valve 140, a part of the second connecting pipe 130 extends into the second interface 123 and is fixedly welded to the second interface 123, or a part of the second interface 123 extends into the second connecting pipe 130 and is fixedly welded to the second connecting pipe 130; correspondingly, a part of the second connecting pipe 130 extends into the third interface 142 and is fixedly welded to the third interface 142, or a part of the third interface 142 extends into the second connecting pipe 130 and is fixedly welded to the second connecting pipe 130.

[0084] Considering the convenience of maintaining and overhauling the connection between the filter 120 and the stop valve 140, in some embodiments, referring to Figure 4 , the valve body 141 includes a shell part 1411 and a bushing 1412 fixedly connected to the shell part 1411. The bushing 1412 defines the third interface 142, and the fourth interface 143 is formed on the shell part 1411.

[0085] As described above, the filter 120 and the stop valve 140 can be directly connected or indirectly connected through the second connecting pipe 130. In some embodiments, when the second connecting pipe 130 is provided between the filter 120 and the stop valve 140, a part of the second connecting pipe 130 extends into the bushing 1412 and is fixedly welded to the bushing 1412, or a part of the bushing 1412 extends into the second connecting pipe 130 and is fixedly welded to the second connecting pipe 130. In some embodiments, when the second interface 123 and the third interface 142 are directly welded and fixed, a part of the second interface 123 extends into the bushing 1412 and is fixedly welded to the bushing 1412, or a part of the bushing 1412 extends into the second interface 123 and is fixedly welded to the second interface 123. Thus, when the connection between the bushing 1412 and the second interface 123 fails, the valve assembly 100 can work properly by simply re-welding the replaced new bushing 1412 to the second interface 123.

[0086] Wherein, when the second connecting pipe 130 is provided between the filter 120 and the stop valve 140, the second connecting pipe 130, the valve body 141 and the housing 121 are made of the same material. In other words, the second connecting pipe 130, the valve body 141 and the housing 121 can all be made of copper or all be made of stainless steel. Considering cost savings, the second connecting pipe 130, the valve body 141 and the housing 121 are preferably made of stainless steel.

[0087] Please refer to Figure 2 and Figure 4 , in some embodiments, the valve assembly 100 may further include a third connecting pipe 150. One end of the third connecting pipe 150 is fixedly welded to the fourth interface 143, and the other end of the third connecting pipe 150 is used to connect to the indoor heat exchanger. Among them, the fourth interface 143 may be formed at the lower part of the housing portion 1411 as Figure 4 shown. When the air conditioner is in the cooling mode, the filter 120 can filter the refrigerant in the pipeline flowing through the third connecting pipe 150.

[0088] To ensure a reliable connection between the third connecting pipe 150 and the fourth interface 143 of the filter 120, the third connecting pipe 150 and the fourth interface 143 can also be welded together in a lapping manner. In some embodiments, a part of the third connecting pipe 150 extends into the fourth interface 143 and is fixedly welded to the fourth interface 143, or a part of the fourth interface 143 extends into the third connecting pipe 150 and is fixedly welded to the third connecting pipe 150.

[0089] Refer to Figure 2 and Figure 5, in some embodiments, the valve assembly 100 further includes a fourth connection pipe 160. One end of the fourth connection pipe 160 is fixedly welded to the first connection pipe 110, and the other end of the fourth connection pipe 160 is used to connect to a reversing valve. To ensure a reliable connection between the fourth connection pipe 160 and the first connection pipe 110, the fourth connection pipe 160 and the first connection pipe 110 can also be welded together in a lapped manner. For the sake of brevity, it will not be elaborated here.

[0090] See Figure 2 and Figure 5 , in some embodiments, the valve assembly 100 further includes a temperature sensing sleeve 170. The temperature sensing sleeve 170 is fixedly arranged on the housing 121 of the first connection pipe 110 or the filter 120 for installing a temperature sensor. Among them, the installation position of the temperature sensing sleeve 170 can be selected between the first connection pipe 110 and the housing 121 of the filter 120 according to needs. The inner diameter and length dimensions of the temperature sensing sleeve 170 can be flexibly set according to the specification dimensions of the temperature sensor, and the embodiments of the present application do not make specific limitations on this.

[0091] It should be noted that the valve assembly 100 needs to be pressure tested after being assembled to determine whether there are leakage points. Therefore, after the fourth connection pipe 160, the first connection pipe 110, the filter 120, (the second connection pipe 130,) the stop valve 140, and the third connection pipe 150 are welded and connected, a sealing member needs to be provided at one end of the third connection pipe 150 away from the filter 120. It can be understood that after the valve assembly 100 with the sealing member is qualified in the pressure test, the staff will disassemble the sealing member and assemble it in the outdoor unit of the air conditioner.

[0092] See Figure 2 , Figure 5 and Figure 7 , in some embodiments, the sealing member may further include a sealing piece 180. The sealing piece 180 is arranged at one end of the third connection pipe 150 away from the filter 120. Due to the residual refrigerant in the third connection pipe 150 after the pressure test, it is difficult to disassemble the sealing piece 180. To be able to disassemble the sealing piece 180 conveniently, the sealing member may further include a sealing piece connection pipe 190. The inner diameter of the sealing piece connection pipe 190 is smaller than the inner diameter of the third connection pipe 150. One end of the sealing piece connection pipe 190 is fixed to the sealing piece 180 and communicates with the third connection pipe 150, and the other end of the sealing piece connection pipe 190 is a closed end. In this way, it is not only convenient for the staff to grasp the sealing piece connection pipe 190, but also beneficial for the staff to apply force to the sealing piece connection pipe 190, thereby breaking the connection between the sealing piece connection pipe 190 and the sealing piece 180, releasing the residual refrigerant in the third connection pipe 150, and easily realizing the disassembly of the sealing member. Among them, the sealing piece 180 can adopt various structures, for example, it can be as Figure 7The shown cover plate has a U-shaped cross section. An installation hole can be formed in the middle of the sealing piece 180 to facilitate its installation with the sealing piece connection pipe 190. The outer diameter of the sealing piece connection pipe 190 is smaller than that of the third connection pipe 150, and can be one-sixth, one-fifth, etc. of the outer diameter of the third connection pipe 150.

[0093] Considering that it is easier to break the sealing piece connection pipe 190, please continue to refer to Figure 7 , in some embodiments, a structurally weak part 191 can also be provided on the sealing piece connection pipe 190. The structurally weak part 191 can be formed with a weak structure that is easy to break by stamping or material reduction. In addition, in some embodiments, the structurally weak part 191 can be provided at one end of the sealing piece connection pipe 190 close to the sealing piece 180. That is to say, the structurally weak part 191 is provided at the root of the sealing piece connection pipe 190 in a cantilever state. In this way, when a worker applies force to the structurally weak part 191 at the root of the sealing piece connection pipe 190, the sealing piece connection pipe 190 can be easily broken, thereby releasing the residual refrigerant in the third connection pipe 150.

[0094] In addition, refer to Figure 1 , considering fixing the compressor and the valve assembly 100, in some embodiments, the air conditioner outdoor unit can also include a chassis 200 and a valve mounting plate 300. The compressor is fixed to the chassis 200, the valve mounting plate 300 is fixed to the chassis 200, and the valve assembly 100 is fixed to the valve mounting plate 300.

[0095] There can be various forms of fixing the valve assembly 100 to the valve mounting plate 300. In some embodiments, a connecting part 144 can be provided on the outer periphery of the stop valve 140, and an installation groove 310 is formed on the valve mounting plate 300; the stop valve 140 is partially accommodated in the installation groove 310, and then the connecting part 144 is fixedly connected to the valve mounting plate 300 on both sides of the installation groove 310, and the fixing method is not limited to welding, screwing, bonding, etc.

[0096] It can be understood that the valve assembly 100 and the installation groove 310 are correspondingly arranged. Considering reserving an expansion space, the number of the installation grooves 310 is usually not less than the number of the valve assemblies 100. For different types of air conditioners, the number of the installation grooves 310 can be different. In some embodiments, for some air conditioners, such as central air conditioners, the number of the installation grooves 310 can be multiple, and the multiple installation grooves 310 are arranged at intervals; correspondingly, the valve assemblies 100 can also be multiple, and the stop valves 140 of the multiple valve assemblies 100 are correspondingly arranged in the multiple installation grooves 310. For example, Figure 1 the number of the installation grooves 310 in

[0097] In the drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present application, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0098] The above content is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A valve assembly (100), installed between a reversing valve and an indoor heat exchanger, characterized in that: The valve assembly (100) comprises: A first connecting pipe (110), one end of which is used to connect to the reversing valve; A filter (120), the filter (120) comprising a housing (121), the housing (121) having a first interface (122) and a second interface (123), the first interface (122) being welded and fixed to the other end of the first pipe (110); and A stop valve (140), the stop valve (140) comprising a valve body (141), the valve body (141) having a third interface (142) and a fourth interface (143); The second interface (123) and the third interface (142) are directly welded and fixed, or a second connecting pipe (130) is provided between the filter (120) and the stop valve (140), and the two ends of the second connecting pipe (130) are respectively welded and fixed to the second interface (123) and the third interface (142).

2. The valve assembly (100) according to claim 1, characterized in that: The first connecting pipe (110) is a copper pipe or a stainless steel pipe, the shell (121) is made of copper or stainless steel, and the first connecting pipe (110) and the shell (121) are made of the same material.

3. The valve assembly (100) according to claim 1, characterized in that: The first connecting pipe (110) comprises a first section (111), a second section (112) and a third section (113) which are connected in sequence; the first section (111) is connected to the first interface (122); an angle is formed between the second section (112) and the first section (111); and an angle is formed between the third section (113) and the second section (112).

4. The valve assembly (100) according to claim 3, characterized in that: The third section (113) and the first section (111) are in a spatially vertical relationship.

5. The valve assembly (100) according to claim 1, characterized in that: A portion of the first connecting pipe (110) extends into the first interface (122) and is welded and fixed to the first interface (122), or a portion of the first interface (122) extends into the first connecting pipe (110) and is welded and fixed to the first connecting pipe (110).

6. The valve assembly (100) according to claim 1, characterized in that: When a second connecting pipe (130) is provided between the filter (120) and the stop valve (140), a portion of the second connecting pipe (130) extends into the second interface (123) and is welded and fixed to the second interface (123), or a portion of the second interface (123) extends into the second connecting pipe (130) and is welded and fixed to the second connecting pipe (130).

7. The valve assembly (100) according to claim 1, characterized in that: When a second connecting pipe (130) is provided between the filter (120) and the stop valve (140), a portion of the second connecting pipe (130) extends into the third interface (142) and is welded and fixed to the third interface (142), or a portion of the third interface (142) extends into the second connecting pipe (130) and is welded and fixed to the second connecting pipe (130).

8. The valve assembly (100) according to claim 1, characterized in that: The valve body (141) comprises a shell (1411) and a bushing (1412) fixedly connected to the shell (1411), wherein the bushing (1412) defines the third interface (142), and the fourth interface (143) is formed on the shell (1411).

9. The valve assembly (100) according to claim 8, characterized in that: When a second connecting pipe (130) is provided between the filter (120) and the stop valve (140), a portion of the second connecting pipe (130) extends into the bushing (1412) and is welded and fixed to the bushing (1412), or a portion of the bushing (1412) extends into the second connecting pipe (130) and is welded and fixed to the second connecting pipe (130).

10. The valve assembly (100) according to claim 8, characterized in that When the second interface (123) is directly welded to the third interface (142), a portion of the second interface (123) extends into the bushing (1412) and is welded to the bushing (1412), or a portion of the bushing (1412) extends into the second interface (123) and is welded to the second interface (123).

11. The valve assembly (100) according to claim 1, characterized in that When a second connecting pipe (130) is provided between the filter (120) and the stop valve (140), the second connecting pipe (130), the valve body (141) and the housing (121) are made of the same material.

12. The valve assembly (100) according to claim 1, characterized in that The valve assembly (100) further comprises: A third connecting pipe (150), one end of the third connecting pipe (150) is welded and fixed to the fourth interface (143), and the other end of the third connecting pipe (150) is used to connect to the indoor heat exchanger.

13. The valve assembly (100) according to claim 12, characterized in that A portion of the third connecting pipe (150) extends into the fourth interface (143) and the fourth interface (143) is welded and fixed, or a portion of the fourth interface (143) extends into the third connecting pipe (150) and the third connecting pipe (150) is welded and fixed.

14. The valve assembly (100) according to claim 1, characterized in that The valve assembly (100) further comprises: A fourth connecting pipe (160), one end of the fourth connecting pipe (160) is welded and fixed to the first connecting pipe (110), and the other end of the fourth connecting pipe (160) is used to connect to the reversing valve.

15. The valve assembly (100) according to claim 1, characterized in that The valve assembly (100) further comprises: A temperature sensing sleeve (170) is fixedly disposed on the first connecting pipe (110) or the housing (121) of the filter (120) and is used for installing a temperature sensor.

16. The valve assembly (100) according to claim 12, characterized in that The valve assembly (100) further comprises: a sealing sheet (180), the sealing sheet (180) being arranged at an end of the third connecting pipe (150) away from the filter (120); A sealing tube (190), wherein the inner diameter of the sealing tube (190) is smaller than the inner diameter of the third tube (150), one end of the sealing tube (190) is fixed to the sealing sheet (180) and is connected to the third tube (150), and the other end of the sealing tube (190) is a sealed end.

17. The valve assembly (100) according to claim 16, characterized in that The sealing sheet connecting pipe (190) is provided with a structurally weak portion (191).

18. The valve assembly (100) according to claim 17, characterized in that The structural weak portion (191) is arranged at one end of the sealing sheet connecting pipe (190) close to the sealing sheet (180).

19. An air conditioner outdoor unit, characterized in that: include: compressor; A reversing valve connected to the compressor; as well as According to the valve assembly (100) according to any one of claims 1 to 15, the first connecting pipe (110) is connected to the reversing valve.

20. The air conditioner outdoor unit according to claim 19, characterized in that: The air conditioner outdoor unit further comprises a chassis (200) and a valve mounting plate (300), the compressor is fixed to the chassis (200), the valve mounting plate (300) is fixed to the chassis (200), and the valve assembly (100) is fixed to the valve mounting plate (300).

21. The air conditioner outdoor unit according to claim 20, characterized in that: The outer periphery of the stop valve (140) is provided with a connecting portion (144); the valve mounting plate (300) is provided with a mounting groove (310); The stop valve (140) is partially accommodated in the installation groove (310), and the connecting portion (144) is fixedly connected to the valve installation plates (300) on both sides of the installation groove (310).

22. The air conditioner outdoor unit according to claim 21, characterized in that: The number of the mounting grooves (310) is multiple, and the multiple mounting grooves (310) are arranged at intervals; There are a plurality of valve assemblies (100), and the stop valves (140) of the plurality of valve assemblies (100) are correspondingly arranged in a plurality of installation grooves (310).

23. An air conditioner, characterized in that: An air-conditioning outdoor unit comprising any one of claims 19 to 22.

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