Valve assembly, air conditioner outdoor unit and air conditioner

Abstract

The present application provides a valve assembly, an air conditioner outdoor unit and an air conditioner. The valve assembly comprises a stop valve, the stop valve having a first stop interface, a second stop interface and a stop valve core located between the first stop interface and the second stop interface; the stop valve core is configured to be in an open / closed state so as to communicate with or cut off a refrigerant flow path between the two stop interfaces, and the second stop interface is closer to an external connecting tube than the first stop interface; at least one of the first stop interface and the second stop interface is connected to a filter, the filter having a first connecting peripheral surface; at least one of the first stop interface and the second stop interface has a second connecting peripheral surface, the first connecting peripheral surface being sleeved on and welded to the second connecting peripheral surface, and the main component materials of the first connecting peripheral surface and the second connecting peripheral surface being the same. On one hand, the present application can reduce the number of welding seams and the number of welding operations, thus improving welding reliability while reducing welding costs; on the other hand, the use of copper raw materials can be reduced, thus helping to reduce production costs.

Description

Valve components, air conditioner outdoor units and air conditioners

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of the following patent applications, the entire contents of which are incorporated herein by reference:

[0003] The Chinese patent application numbered 202420445431.8, entitled “Air-conditioning outdoor unit and HVAC equipment”, submitted to the State Intellectual Property Office of China on March 7, 2024; the Chinese patent application numbered 202411102893.0, entitled “Valve assembly, air-conditioning outdoor unit and air conditioner”, submitted to the State Intellectual Property Office of China on August 12, 2024; the Chinese patent application numbered 20242194, submitted to the State Intellectual Property Office of China on August 12, 2024 5174.0, Chinese patent application named “Valve assembly, air-conditioning outdoor unit and air conditioner”; Chinese patent application number 202411102879.0, filed to the State Intellectual Property Office of China on August 12, 2024, and named “Valve assembly, air-conditioning outdoor unit and air conditioner”; Chinese patent application number 202421945145.4, filed to the State Intellectual Property Office of China on August 12, 2024, and named “Valve assembly, air-conditioning outdoor unit and air conditioner”. Technical Field

[0004] The present application relates to the technical field of air conditioning, and in particular to a valve assembly, an air conditioning outdoor unit and an air conditioner. Background Art

[0005] The first stop valve used in air conditioners is usually connected to the first filter, the heat exchanger, the reversing valve and other components through a refrigerant pipe.

[0006] In related art, to improve the convenience and reliability of secondary welding between the first shut-off valve and the first filter, between the first shut-off valve and the refrigerant pipe, and between the first filter and the refrigerant pipeline, transition copper sleeves are installed at the inlet and outlet of the first shut-off valve, at both ends of the refrigerant pipe, and at both ends of the first filter. However, the installation of transition copper sleeves increases the number of welds and the number of welds, resulting in higher production costs and a greater risk of leakage. Summary of the Invention

[0007] This application provides a valve assembly, an air conditioner outdoor unit, and an air conditioner, aiming to improve the problems of increased welding times, increased welds, and higher welding and production costs caused by the use of copper joints. This objective is achieved through the following technical solutions:

[0008] According to a first aspect of the present disclosure, a valve assembly is proposed, which is configured as a part of a heat source unit of a refrigerant circulation system, and the valve assembly includes: a stop valve, the stop valve having a first stop interface and a second stop interface, and a stop valve core located between the first stop interface and the second stop interface, the stop valve core being configured to be in an open and closed state to connect or cut off the refrigerant flow path between the two stop interfaces, and the second stop interface is closer to the external connecting pipe than the first stop interface; wherein, at least one of the first stop interface and the second stop interface is connected to a filter, the filter having a first connecting circumferential surface, and at least one of the first stop interface and the second stop interface having a second connecting circumferential surface, and the first connecting circumferential surface is sleeved and welded to the second connecting circumferential surface, and the main component materials of the first connecting circumferential surface and the second connecting circumferential surface are the same.

[0009] The valve assembly proposed in this application utilizes direct welding of the first and second connection surfaces. Compared to related technologies, this reduces the number of welds and the number of welds required, thereby lowering welding costs while also improving welding reliability and reducing the likelihood of weld leakage. Furthermore, it reduces the use of copper raw materials, further contributing to lower production costs.

[0010] In addition, the valve assembly according to the present application may also have the following additional technical features:

[0011] In some embodiments of the present application, the stop valve includes a main body, the main body having a first port and a second port, a flow channel formed between the first port and the second port, and the stop valve core arranged in the flow channel, and the axis of the first port and the axis of the second port are set at an angle or in parallel.

[0012] In some embodiments of the present application, the stop valve further includes a first valve connecting pipe and a second valve connecting pipe, one end of the first valve connecting pipe is sleeved and fixed on the first port, the other end of the first valve connecting pipe is configured as the first stop interface, the first stop interface is sleeved and fixed on the gas side outlet pipe of the heat source side unit or the liquid side outlet pipe of the heat source side unit, one end of the second valve connecting pipe is sleeved and fixed on the second port, the other end of the second valve connecting pipe is configured as the second stop interface and is formed with the second connecting circumferential surface, one end of the filter is configured as the first connecting circumferential surface, and the other end of the filter is configured to sleeve and fix an external gas pipe or an external liquid pipe.

[0013] In some embodiments of the present application, the main component material of the first connecting circumferential surface and the second connecting circumferential surface is copper, or the main component material of the first connecting circumferential surface and the second connecting circumferential surface is stainless steel.

[0014] In some embodiments of the present application, the main component material of the first connecting surface and the second connecting surface is copper, the main component material of the main body is copper, the main component material of one end of the filter is copper or the main component material of one end of the filter is stainless steel, and a copper sleeve or a copper plating is provided at one end of the stainless steel filter to form the first connecting surface, the main component material of the other end of the second valve connecting pipe is copper or the main component material of the other end of the second valve connecting pipe is stainless steel, and a copper sleeve or a copper plating is provided at the other end of the stainless steel second valve connecting pipe to form the second connecting surface.

[0015] In some embodiments of the present application, the main component material of the first connecting surface and the second connecting surface is stainless steel, the main component material of one end of the filter is stainless steel and forms the first connecting surface made of stainless steel, and the second valve connecting pipe is made of stainless steel and forms the second connecting surface made of stainless steel.

[0016] In some embodiments of the present application, the stop valve further includes a first valve connecting pipe, one end of which is sleeved and fixed on the first port, and the other end of the first valve connecting pipe is configured as the first stop interface, and the first stop interface is sleeved and fixed on the gas side outlet pipe of the heat source side unit or the liquid side outlet pipe of the heat source side unit, the second port is configured as the second stop interface and is formed with the second connecting circumferential surface, one end of the filter is configured as the first connecting circumferential surface, and the other end of the filter is configured to sleeve and fix an external gas pipe or an external liquid pipe.

[0017] In some embodiments of the present application, the main component material of the first connecting circumferential surface and the second connecting circumferential surface is copper, or the main component material of the first connecting circumferential surface and the second connecting circumferential surface is stainless steel.

[0018] In some embodiments of the present application, the main component material of the first connecting surface and the second connecting surface is copper, the main component material of one end of the filter is copper or the main component material of one end of the filter is stainless steel, a copper sleeve or a copper plating is provided at one end of the stainless steel filter to form the first connecting surface, the main component material of the main body is copper to form a second connecting surface made of copper, or the main component of the main body is stainless steel, and a copper sleeve or a copper plating is provided at the second stainless steel port to form the second connecting surface.

[0019] In some embodiments of the present application, the main component material of the first connecting surface and the second connecting surface is stainless steel, the main component material of one end of the filter is stainless steel and forms a first connecting surface made of stainless steel, the main component material of the main body is stainless steel, and the second port made of stainless steel forms the second connecting surface.

[0020] In some embodiments of the present application, the stop valve further includes a first valve pipe, one end of which is sleeved and fixed to the first port, the other end of which is configured as the first stop interface and is formed with the second connection circumferential surface, one end of the filter is configured as the first connection circumferential surface, and the other end of the filter is configured to be sleeved and fixed to the gas side outlet pipe of the heat source unit or the liquid side outlet pipe of the heat source unit.

[0021] The second port is configured as the second cut-off interface, and the second cut-off interface is sleeved and fixed with an external gas pipe or an external liquid pipe.

[0022] In some embodiments of the present application, the main component material of the first connecting circumferential surface and the second connecting circumferential surface is copper, or the main component material of the first connecting circumferential surface and the second connecting circumferential surface is stainless steel.

[0023] In some embodiments of the present application, the main component material of the first connecting surface and the second connecting surface is copper, the main component material of the main body is copper, the main component material of one end of the filter is copper or the main component material of one end of the filter is stainless steel, and a copper sleeve or a copper plating is provided at one end of the stainless steel filter to form the first connecting surface, the main component material of the other end of the first valve connecting pipe is copper or the main component material of the other end of the first valve connecting pipe is stainless steel, and a copper sleeve or a copper plating is provided at the other end of the stainless steel first valve connecting pipe to form the second connecting surface.

[0024] In some embodiments of the present application, the main component material of the first connecting surface and the second connecting surface is stainless steel, the main component material of one end of the filter is stainless steel and forms a first connecting surface made of stainless steel, and the first valve connecting pipe is made of stainless steel and forms a second connecting surface made of stainless steel.

[0025] In some embodiments of the present application, the second port is configured as the second cut-off interface, the second cut-off interface is sleeved and fixed to an external gas pipe or an external liquid pipe, the first port is configured as the first cut-off interface and is formed with the second connecting circumferential surface, one end of the filter is configured as the first connecting circumferential surface, and the other end of the filter is configured to sleeve and fix the gas side outlet pipe of the heat source side unit or the liquid side outlet pipe of the heat source side unit.

[0026] In some embodiments of the present application, the main component material of the first connecting circumferential surface and the second connecting circumferential surface is copper, or the main component material of the first connecting circumferential surface and the second connecting circumferential surface is stainless steel.

[0027] In some embodiments of the present application, the main component material of the first connecting surface and the second connecting surface is copper, the main component material of one end of the filter is copper or the main component material of one end of the filter is stainless steel, a copper sleeve or a copper plating is provided at one end of the stainless steel filter to form the first connecting surface, the main component material of the main body is copper to form the second connecting surface made of copper, or the main component of the main body is stainless steel, and a copper sleeve or a copper plating is provided at the second stainless steel port to form the second connecting surface.

[0028] In some embodiments of the present application, the main component material of the first connecting surface and the second connecting surface is stainless steel, the main component material of one end of the filter is stainless steel and forms a first connecting surface made of stainless steel, the main component material of the main body is stainless steel, and the second port made of stainless steel forms the second connecting surface.

[0029] In some embodiments of the present application, the stop valve is a liquid side stop valve, the first stop interface is connected to the liquid side outlet pipe of the heat source unit, and the second stop interface is connected to the external liquid pipe; or, the stop valve is a gas side stop valve, the first stop interface is connected to the gas side outlet pipe of the heat source unit, and the second stop interface is connected to the external gas pipe.

[0030] In a second aspect of the present application, an air-conditioning outdoor unit is provided, comprising: a compressor; a reversing valve connected to the compressor; and the valve assembly described in any one of the first aspects, wherein the second cut-off interface is connected to the reversing valve.

[0031] In some embodiments of the present application, the air-conditioning outdoor unit 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.

[0032] In some embodiments of the present application, a connection portion is provided on the periphery of the stop valve; and a mounting groove is provided on the valve mounting plate;

[0033] The stop valve is partially accommodated in the installation groove, and the connecting portion is fixedly connected to the valve installation plates on both sides of the installation groove.

[0034] In some embodiments of the present application, there are multiple mounting slots, and the multiple mounting slots are arranged at intervals;

[0035] There are multiple valve assemblies, and the stop valves of the multiple valve assemblies are correspondingly arranged in the multiple installation grooves.

[0036] In some embodiments of the present application, the air conditioner outdoor unit further includes:

[0037] A refrigerant pipeline assembly, the refrigerant pipeline assembly comprising a refrigerant pipeline;

[0038] At least one valve port of the reversing valve is connected in series with the stop valve and the filter via the refrigerant pipeline, and the filter is arranged on a side of the stop valve away from the valve port.

[0039] In some embodiments of the present application, along the vertical direction, the distance between the filter and the reversing valve is D1, and the distance between the filter and the stop valve is D2, and D1>D2.

[0040] In some embodiments of the present application, the reversing valve, the stop valve and the filter are sequentially connected through the refrigerant pipeline to form a refrigerant flow path, and the filter is arranged at the end of the refrigerant flow path.

[0041] In some embodiments of the present application, the reversing valve is provided with a first valve port and a second valve port, and the air conditioner outdoor unit further comprises a first stop valve, a first filter, a second filter, and a second stop valve;

[0042] The first valve port, the first stop valve and the first filter are connected in sequence through the refrigerant pipeline to form a gaseous refrigerant passage; and / or the second valve port, the second stop valve and the second filter are connected in sequence through the refrigerant pipeline to form a liquid refrigerant passage.

[0043] In some embodiments of the present application, the air-conditioning outdoor unit also includes a shell, and the refrigerant pipeline assembly, the reversing valve, the first stop valve, the second stop valve, the first filter and the second filter are all arranged in the shell, and a first mounting port is provided on the shell, and the first mounting port is provided for the installation and disassembly of the reversing valve, the first stop valve and the second stop valve; and / or, a second mounting port is provided on the shell, and the second mounting port is provided for the installation and disassembly of the first filter and the second filter.

[0044] In some embodiments of the present application, the air-conditioning outdoor unit further includes a valve mounting plate, which is disposed in the shell and connected to the inner wall of the shell, and the first stop valve and / or the second stop valve are provided on the valve mounting plate.

[0045] In some embodiments of the present application, the air-conditioning outdoor unit has at least one air outlet, and the air outlet is provided on the side wall of the shell.

[0046] In some embodiments of the present application, the second filter is arranged on a side of the second stop valve away from the valve port; along the vertical direction, the distance between the second filter and the reversing valve is D1, and the distance between the second filter and the second stop valve is D2, D1>D2.

[0047] The third aspect of the present application further proposes an air conditioner, which includes the air conditioner outdoor unit described in any one of claims 20-31. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present disclosure. The same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0049] FIG1 is a schematic diagram of a partial three-dimensional structure of an air-conditioning outdoor unit provided in an embodiment of the present application;

[0050] FIG2 is a schematic structural diagram of a valve assembly provided in an embodiment of the present application;

[0051] FIG3 is a schematic cross-sectional view of the first filter in the valve assembly of FIG2 ;

[0052] FIG4 is a schematic cross-sectional view of the first stop valve in the valve assembly of FIG2 ;

[0053] FIG5 is a schematic structural diagram of another valve assembly provided in an embodiment of the present application;

[0054] FIG6 is a schematic cross-sectional view of the valve assembly in FIG5 along line AA;

[0055] FIG7 is a schematic cross-sectional view of a portion I of the valve assembly in FIG5;

[0056] FIG8 is a schematic structural diagram of a valve assembly according to an embodiment of the present application;

[0057] FIG9 is another structural schematic diagram of a valve assembly provided in one embodiment of the present application;

[0058] FIG10 is a schematic structural diagram of a first stop valve provided in one embodiment of the present application;

[0059] FIG11 is a schematic structural diagram of a first filter provided in one embodiment of the present application;

[0060] FIG12 is a schematic structural diagram of a first pipeline provided in one embodiment of the present application;

[0061] FIG13 is a schematic diagram of a cross-sectional structure at BB in FIG1 ;

[0062] FIG14 is a schematic diagram of a cross-sectional structure taken along CC in FIG2 ;

[0063] FIG15 is a schematic diagram of a partial structure of an air-conditioning outdoor unit provided in one embodiment of the present application;

[0064] FIG16 is a schematic structural diagram of an air-conditioning outdoor unit according to an embodiment of the present application;

[0065] FIG17 is a perspective view of an air conditioner outdoor unit according to an embodiment of the present application;

[0066] FIG18 is a schematic diagram illustrating the connection between a valve port of a reversing valve, a first stop valve, and a filter of an air conditioner outdoor unit according to an embodiment of the present application, wherein the first stop valve is disposed on a valve mounting plate;

[0067] FIG19 is a schematic diagram illustrating the connection between another valve port of the reversing valve, the second stop valve, and the filter of the air conditioner outdoor unit according to an embodiment of the present application, wherein the second stop valve is provided on the valve mounting plate;

[0068] FIG20 is a block diagram of an air conditioner according to an embodiment of the present application;

[0069] FIG21 is a block diagram of an air conditioner according to another embodiment of the present application;

[0070] FIG22 is a schematic diagram of a partial structure of an air conditioner according to an embodiment of the present application. DETAILED DESCRIPTION

[0071] The following embodiments of the technical solution of the present disclosure are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present disclosure and are therefore only examples and are not intended to limit the scope of protection of the present disclosure.

[0072] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure; the terms "including" and "having" and any variations thereof in the specification and claims of the present disclosure and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0073] In the description of the embodiments of the present disclosure, technical terms such as "first" and "second" are used solely to distinguish between different objects and should not be understood to indicate or imply relative importance or to implicitly specify the quantity, specific order, or primary and secondary relationship of the technical features indicated. In the description of the embodiments of the present disclosure, "plurality" means more than two, unless otherwise specifically defined.

[0074] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present disclosure. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0075] In the description of the embodiments of the present disclosure, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0076] In the description of the embodiments of the present disclosure, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0077] In the description of the embodiments of the present disclosure, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present disclosure.

[0078] In the description of the embodiments of the present disclosure, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and they can refer to internal connectivity between two components or interaction between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present disclosure based on specific circumstances.

[0079] Air conditioners have become one of the essential household appliances in people's daily lives. A valve assembly is installed between the indoor heat exchanger and the outdoor compressor of the air conditioner to control the flow of refrigerant entering the outdoor compressor.

[0080] However, currently, copper pipes are required to connect the components of the valve assembly of the air conditioner, which results in high manufacturing costs.

[0081] In order to solve the above technical problems, the embodiments of the present application provide a valve assembly, an air conditioner outdoor unit, and an air conditioner. The valve assembly, the air conditioner outdoor unit, and the air conditioner provided in the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0082] The air conditioner 400 provided in an embodiment of the present application includes an indoor heat exchanger 301 and an outdoor unit 100. Referring to Figures 20 and 21, the outdoor unit includes a compressor 13, a reversing valve 120, a heat source-side unit 21 (i.e., an outdoor heat exchanger), a gas-liquid separator 24, an expansion valve 25, and a valve assembly 10. The reversing valve is connected to the compressor, and the valve assembly 10 is installed between the reversing valve and the indoor heat exchanger. The indoor heat exchanger enables efficient heat exchange between indoor and outdoor spaces. In summer, the indoor heat exchanger transfers indoor heat to the outdoors, lowering the indoor temperature; in winter, the indoor heat exchanger absorbs outdoor heat and transfers it indoors, raising the indoor temperature. A compressor compresses refrigerant from a low-temperature, low-pressure state to a high-temperature, high-pressure state. The reversing valve, also known as a four-way valve, is used to change the flow direction of refrigerant in the air conditioner, enabling switching between cooling and heating modes. In summer, when the air conditioner is in cooling mode, the refrigerant transported by the valve assembly 10 is at a cold, low-pressure state. Therefore, the valve assembly 10 can be referred to as a low-pressure valve assembly. In winter, when the air conditioner is in heating mode, the reversing valve changes the flow direction of the refrigerant, and the coolant transported in the valve assembly 10 is in a hot and high-pressure state. Therefore, the valve assembly 10 can be called a high-pressure valve group.

[0083] Referring to Figures 2, 3, 4, 5, 20 and 21, in some embodiments, the valve assembly 10 is configured as a part of the heat source unit of the refrigerant circulation system, and the valve assembly 10 includes a stop valve 130 and a filter 140, the stop valve 130 has a first stop interface and a second stop interface, and has a stop valve 130 core located between the first stop interface and the second stop interface, the stop valve 130 core is configured to be in an open and closed state to connect or cut off the refrigerant flow path between the two stop interfaces, the second stop interface is closer to the external connecting pipe than the first stop interface, wherein at least one of the first stop interface and the second stop interface is connected to the filter 140, the filter 140 has a first connecting circumferential surface (not shown in the figure), and at least one of the first stop interface and the second stop interface has a second connecting circumferential surface (not shown in the figure), and the first connecting circumferential surface is sleeved and welded to the second connecting circumferential surface, and the main component materials of the first connecting circumferential surface and the second connecting circumferential surface are the same.

[0084] Specifically, the valve assembly 10 may include a first pipeline 113, a filter 140, and a shutoff valve 130. One end of the first pipeline 113 is connected to the reversing valve. The filter 140 includes a housing 1410 having a first filter interface 1411 and a second filter interface 1412. The first filter interface 1411 is welded to the other end of the first pipeline 113. The shutoff valve 130 includes a valve body 1310, which includes a main body and a shutoff valve core. The main body has a first port 1312 and a second port 1311, as well as a flow channel formed between the first and second ports. The shutoff valve core is disposed within the flow channel. The axis of the first port 1311 and the axis of the second port 1312 are arranged at an angle or parallel to each other.

[0085] In some embodiments, as shown in FIG2 , the second filter interface 1412 of the filter is directly welded and fixed to the valve body 1310. Specifically, the shut-off valve 130 further includes a first valve connecting pipe 111, one end of which is sleeved and fixed to the first port 1312, the other end of which is configured as a first shut-off interface, the first shut-off interface being sleeved and fixed to the gas outlet pipe 211 of the heat source side unit 21 or the liquid outlet pipe 212 of the heat source side unit 21, the second port 1311 being configured as a second shut-off interface and having a second connecting circumferential surface. One end of the filter 140 is configured as the first connecting circumferential surface, and the other end of the filter 140 is configured to sleeve and fix the external gas pipe 23 or the external liquid pipe 22. When the second filter interface 1412 of the filter is directly welded and fixed to the valve body 1310, the main component material of the first connecting circumferential surface and the second connecting circumferential surface is copper, or the main component material of the first connecting circumferential surface and the second connecting circumferential surface is stainless steel. For example, in some exemplary embodiments, the primary component material of the first and second connecting surfaces is copper, the primary component material of the main body 13101 is copper, the primary component material of one end of the filter 140 is copper or the primary component material of one end of the filter 140 is stainless steel, a copper sleeve or copper plating is provided on one end of the stainless steel filter 140 to form the first connecting surface, and the primary component material of the other end of the second valve connecting pipe 112 is copper or the primary component material of the other end of the second valve connecting pipe 112 is stainless steel, a copper sleeve or copper plating is provided on the other end of the stainless steel second valve connecting pipe 112 to form the second connecting surface. Alternatively, in other exemplary embodiments, the primary component material of the first and second connecting surfaces is stainless steel, one end of the filter 140 is stainless steel and forms the first connecting surface, and the second valve connecting pipe 112 is made of stainless steel and forms the second connecting surface. In other embodiments, referring to Figure 5, a pipe body structure is provided between the second filter interface 1412 of the filter and the valve body 1310 and is indirectly welded and fixed. Specifically, the stop valve 130 further includes a first valve connecting pipe 111 and a second valve connecting pipe 112. One end of the first valve connecting pipe 111 is sleeved and fixed on the first port 1312, and the other end of the first valve connecting pipe 111 is configured as a first stop interface. The first stop interface is sleeved and fixed on the gas side outlet pipe 211 of the heat source side unit 21 or the liquid side outlet pipe 212 of the heat source side unit 21. One end of the second valve connecting pipe 112 is sleeved and fixed on the second port 1311. The other end of the second valve connecting pipe 112 is configured as a second stop interface and is formed with a second connecting circumferential surface. One end of the filter 140 is configured as the first connecting circumferential surface, and the other end of the filter 140 is configured to sleeve and fix the external gas pipe 23 or the external liquid pipe 22.

[0086] When the second filter interface 1412 of the filter is indirectly welded to the valve body 1310 via the second valve connecting pipe 112 , the main component material of the first connecting surface and the second connecting surface is copper, or the main component material of the first connecting surface and the second connecting surface is stainless steel.

[0087] Furthermore, the main component material of the first connecting surface and the second connecting surface is copper, the main component material of the main body 13101 is copper, the main component material of one end of the filter 140 is copper or the main component material of one end of the filter 140 is stainless steel, and a copper sleeve or a copper plating is provided at one end of the stainless steel filter 140 to form the first connecting surface, the main component material of the other end of the second valve connecting pipe 112 is copper or the main component material of the other end of the second valve connecting pipe 112 is stainless steel, and a copper sleeve or a copper plating is provided at the other end of the stainless steel second valve connecting pipe 112 to form the second connecting surface.

[0088] In some embodiments, the main component material of the first connecting surface and the second connecting surface is stainless steel, the main component material of one end of the filter 140 is stainless steel and forms a first connecting surface made of stainless steel, and the second valve connecting pipe 112 is made of stainless steel and forms a second connecting surface made of stainless steel.

[0089] The following further describes the embodiments of the present application with reference to Figures 1 to 7:

[0090] The filter 140 stop valve 130 can be a manual valve, or an electric valve, a pneumatic valve or a hydraulic valve as needed. The specifications of the stop valve 130 can be selected according to the pipeline pressure and size of the valve assembly 10.

[0091] In the solution provided in the embodiment of the present application, the first pipeline 113 and the first filter interface 1411 of the filter 140 are directly welded and fixed, and the second filter interface 1412 of the filter 140 and the second port 1311 of the stop valve 130 can be directly welded and fixed or directly welded and fixed through the second valve pipe 112, avoiding the use of copper pipes for transfer connection, and therefore, can effectively reduce the manufacturing cost of the valve assembly 10 of the air conditioner 400.

[0092] In some embodiments, the first pipeline 113 can be a copper tube or a stainless steel tube, and the shell 1410 can be made of copper or stainless steel. The first pipeline 113 and the shell 1410 can be made of the same material. In other words, when the first pipeline 113 is a copper tube, the shell 1410 can be made of copper; when the first pipeline 113 is a stainless steel tube, the shell 1410 can be made of stainless steel. The heat transfer coefficient of stainless steel is similar to that of copper tubes. Furthermore, compared to copper tubes, stainless steel has better corrosion resistance and can withstand environments with high chlorine, ammonia nitrogen, and chemical oxygen demand (COD) content in reclaimed water, reducing the risk of corrosion. Since the production cost of stainless steel is lower than that of copper, stainless steel is cheaper than copper. Considering cost savings, the first pipeline 113 is preferably a stainless steel tube, and the shell 1410 is preferably made of stainless steel.

[0093] In some embodiments, the first pipeline 113 includes a first section 1131, a second section 1132, and a third section 1133, which are sequentially connected. The first section 1131 is connected to the first filter interface 1411. The second section 1132 forms an angle with the first section 1131, and the third section 1133 forms an angle with the second section 1132. This allows the first pipeline 113 to adapt to outdoor units of varying sizes, improving the applicability of the valve assembly 10. The angles between the second section 1132 and the first section 1131, and between the third section 1133 and the second section 1132, can be flexibly set according to actual needs.

[0094] In some embodiments, the third segment 1133 is spatially perpendicular to the first segment 1131. It is understood that when the third segment 1133 is perpendicular to the first segment 1131, the second segment 1132 is inclined relative to the horizontal plane.

[0095] In order to ensure reliable connection between the filter 140 and the first pipeline 113 and the stop valve 130, the first filter interface 1411 of the filter 140 and the first pipeline 113, as well as the second filter interface 1412 of the filter 140 and the stop valve 130 can be connected by overlapping welding.

[0096] Specifically, with respect to the filter 140 and the first pipeline 113, in some embodiments, a portion of the first pipeline 113 can extend into the first filter interface 1411 and be welded and fixed to the first filter interface 1411, or a portion of the first filter interface 1411 can extend into the first pipeline 113 and be welded and fixed to the first pipeline 113.

[0097] Regarding the filter 140 and the stop valve 130, the filter 140 and the stop valve 130 can be directly connected or indirectly connected via the second valve connecting pipe 112. In some embodiments, when the second filter interface 1412 of the filter 140 and the second port 1311 of the stop valve 130 are directly welded and fixed, a portion of the second filter interface 1412 extends into the second port 1311 and is welded and fixed to the second port 1311, or a portion of the second port 1311 extends into the second filter interface 1412 and is welded and fixed to the second filter interface 1412.

[0098] In some embodiments, when a second valve connecting pipe 112 is provided between the filter 140 and the stop valve 130, a portion of the second valve connecting pipe 112 extends into the second filter interface 1412 and is welded and fixed to the second filter interface 1412, or a portion of the second filter interface 1412 extends into the second valve connecting pipe 112 and is welded and fixed to the second valve connecting pipe 112; accordingly, a portion of the second valve connecting pipe 112 extends into the second port 1311 and is welded and fixed to the second port 1311, or a portion of the second port 1311 extends into the second valve connecting pipe 112 and is welded and fixed to the second valve connecting pipe 112.

[0099] In order to facilitate the maintenance and inspection of the connection between the filter 140 and the stop valve 130, in some embodiments, referring to Figure 4, the valve body 1310 includes a main body 13101 and a stop valve core 13102 fixedly connected to the main body 13101, the stop valve core 13102 defines a second port 1311, and a first port 1312 is formed on the main body 13101.

[0100] As described above, the filter 140 and the shut-off valve 130 can be directly connected or indirectly connected via the second valve connecting pipe 112. In some embodiments, when the second valve connecting pipe 112 is provided between the filter 140 and the shut-off valve 130, a portion of the second valve connecting pipe 112 extends into the shut-off valve core 13102 and is welded to the shut-off valve core 13102, or a portion of the shut-off valve core 13102 extends into the second valve connecting pipe 112 and is welded to the second valve connecting pipe 112. In some embodiments, when the second filter interface 1412 is directly welded to the second port 1311, a portion of the second filter interface 1412 extends into the shut-off valve core 13102 and is welded to the shut-off valve core 13102, or a portion of the shut-off valve core 13102 extends into the second filter interface 1412 and is welded to the second filter interface 1412. In this way, when the connection between the stop valve core 13102 and the second filter interface 1412 fails, the valve assembly 10 can be made to work normally by simply re-welding the replaced stop valve core 13102 and the second filter interface 1412 .

[0101] When the second valve connecting pipe 112 is provided between the filter 140 and the shut-off valve 130, the second valve connecting pipe 112, the valve body 1310, and the housing 1410 are made of the same material. In other words, the second valve connecting pipe 112, the valve body 1310, and the housing 1410 can all be made of copper or stainless steel. For cost savings, stainless steel is preferably used for the second valve connecting pipe 112, the valve body 1310, and the housing 1410.

[0102] Referring to Figures 2 and 4 , in some embodiments, the valve assembly 10 may further include a first valve connecting pipe 111 , one end of which is welded to a first port 1312 , and the other end of which is connected to the indoor heat exchanger 301 . The first port 1312 may be formed at the lower portion of the main body 13101 , as shown in Figure 4 . When the air conditioner 400 is in cooling mode, the filter 140 may filter the refrigerant flowing through the first valve connecting pipe 111 .

[0103] To ensure a reliable connection between the first valve connecting pipe 111 and the first port 1312 of the filter 140, the first valve connecting pipe 111 and the first port 1312 may be welded together using an overlapped connection. In some embodiments, a portion of the first valve connecting pipe 111 extends into the first port 1312 and is welded to the first port 1312, or a portion of the first port 1312 extends into the first valve connecting pipe 111 and is welded to the first valve connecting pipe 111.

[0104] Referring to Figures 2 and 5 , in some embodiments, the valve assembly 10 further includes a fourth connecting pipe 1010. One end of the fourth connecting pipe 1010 is welded to the first pipeline 113, and the other end of the fourth connecting pipe 1010 is connected to the reversing valve. To ensure a reliable connection between the fourth connecting pipe 1010 and the first pipeline 113, the fourth connecting pipe 1010 and the first pipeline 113 can also be welded using an overlap joint. To save space, this is not further described here.

[0105] Referring to Figures 2 and 5 , in some embodiments, the valve assembly 10 further includes a temperature-sensing sleeve 170 , which is fixedly mounted on the first pipeline 113 or the housing 1410 of the filter 140 and is used to mount a temperature sensor. The installation location of the temperature-sensing sleeve 170 can be selected as needed, either within the first pipeline 113 or within the housing 1410 of the filter 140 . The inner diameter and length of the temperature-sensing sleeve 170 can be flexibly adjusted based on the specifications of the temperature sensor, and are not specifically limited in this embodiment of the present application.

[0106] It should be noted that after assembly, the valve assembly 10 requires a pressure test to determine if there are any leaks. Therefore, after the fourth connecting pipe 1010, first pipeline 113, filter 140, (second valve connecting pipe 112,) stop valve 130, and first valve connecting pipe 111 are welded together, a packaging component is required at the end of the first valve connecting pipe 111 away from the filter 140. It is understood that once the valve assembly 10 with the packaging component passes the pressure test, the packaging component will be removed and assembled in the air conditioner outdoor unit.

[0107] Referring to Figures 2, 5 and 7, in some embodiments, the package may further include a sealing piece 180. The sealing piece 180 is arranged at one end of the first valve connecting pipe 111 away from the filter 140. Due to the residual refrigerant in the first valve connecting pipe 111 after the pressure test, the sealing piece 180 is difficult to remove. In order to facilitate the removal of the sealing piece 180, the package may further include a sealing piece connecting pipe 190. The inner diameter of the sealing piece connecting pipe 190 is smaller than the inner diameter of the first valve connecting pipe 111, one end of the sealing piece connecting pipe 190 is fixed to the sealing piece 180 and is connected to the first valve connecting pipe 111, and the other end of the sealing piece connecting pipe 190 is a closed end. In this way, it is not only convenient for the staff to grasp the sealing piece connecting pipe 190, but also helps the staff to apply force to the sealing piece connecting pipe 190, thereby destroying the connection between the sealing piece connecting pipe 190 and the sealing piece 180, releasing the residual refrigerant in the first valve connecting pipe 111, and easily realizing the disassembly of the package. Among them, the sealing piece 180 can adopt a variety of structures, for example, a cover with a U-shaped cross-section as shown in Figure 7. The sealing piece 180 may have a mounting hole in the middle to facilitate its installation with the sealing piece pipe 190. The outer diameter of the sealing piece pipe 190 is smaller than that of the first valve pipe 111, and may be one-sixth, one-fifth, etc. of the outer diameter of the first valve pipe 111.

[0108] In order to more easily destroy the sealing tube 190, please continue to refer to Figure 7. In some embodiments, a structurally weak portion 191 may be provided on the sealing tube 190. The structurally weak portion 191 may be a weak structure that is easily broken formed by stamping or material reduction. In addition, in some embodiments, the structurally weak portion 191 may also be provided at one end of the sealing tube 190 close to the sealing piece 180. That is to say, the structurally weak portion 191 is provided at the root of the sealing tube 190 in a cantilevered state. In this way, when the staff applies force to the structurally weak portion 191 at the root of the sealing tube 190, the sealing tube 190 can be easily broken, thereby releasing the residual refrigerant in the first valve tube 111.

[0109] In addition, referring to Figure 1, considering that the compressor and the valve assembly 10 are fixed, in some embodiments, the air-conditioning outdoor unit may also include a chassis 200 and a valve mounting plate 160, the compressor is fixed to the chassis 200, the valve mounting plate 160 is fixed to the chassis 200, and the valve assembly 10 is fixed to the valve mounting plate 160.

[0110] The valve assembly 10 can be secured to the valve mounting plate 160 in a variety of ways. In some embodiments, a connection portion 1313 can be provided on the periphery of the stop valve 130, and a mounting groove 161 can be defined in the valve mounting plate 160. The stop valve 130 can be partially accommodated within the mounting groove 161, and then the connection portion 1313 can be fixedly connected to the valve mounting plate 160 on both sides of the mounting groove 161. The fixing method is not limited to welding, screwing, or bonding.

[0111] It is understandable that the valve assembly 10 and the mounting slots 161 are arranged correspondingly. Taking into account the reserved expansion space, the number of mounting slots 161 is generally not less than the number of valve assemblies 10. For different types of air conditioners 400, the number of mounting slots 161 may be different. In some embodiments, for certain air conditioners 400, such as central air conditioners, the number of mounting slots 161 may be multiple, and the multiple mounting slots 161 are arranged at intervals; accordingly, the valve assembly 10 may also be multiple, and the stop valves 130 of the multiple valve assemblies 10 are correspondingly arranged in the multiple mounting slots 161. For example, the number of mounting slots 161 in Figure 1 is two, so a maximum of two valve assemblies 10 can be set.

[0112] The valve assembly 10 is installed between the reversing valve 120 and the indoor heat exchanger 301. The reversing valve can be, for example, a four-way valve.

[0113] Please refer to Figures 9, 10, 11, 20 and 21, the stop valve 130 further includes a first valve connecting pipe 112, one end of the first valve connecting pipe 112 is socketed and fixed on the first port 1312, the other end of the first valve connecting pipe 112 is configured as a first cut-off interface and is formed with a second connecting circumferential surface, one end of the filter 140 is configured as a first connecting circumferential surface, the other end of the filter 140 is configured to socket and fix the gas side outlet pipe 211 of the heat source unit or the liquid side outlet pipe 212 of the heat source unit, the second port 1311 is configured as a second cut-off interface, and the second cut-off interface is socketed and fixed to the external gas pipe 23 or the external liquid pipe 22.

[0114] In this embodiment, the main component material of the first connecting circumferential surface and the second connecting circumferential surface is copper, or the main component material of the first connecting circumferential surface and the second connecting circumferential surface is stainless steel.

[0115] Furthermore, the main component material of the first connecting surface and the second connecting surface is copper, the main component material of the main body 13101 is copper, the main component material of one end of the filter 140 is copper or the main component material of one end of the filter 140 is stainless steel, and a copper sleeve or a copper plating is provided at one end of the stainless steel filter 140 to form the first connecting surface, the main component material of the other end of the first valve connecting pipe 112 is copper or the main component material of the other end of the first valve connecting pipe 112 is stainless steel, and a copper sleeve or a copper plating is provided at the other end of the stainless steel first valve connecting pipe 112 to form the second connecting surface.

[0116] In some embodiments, the main component material of the first connecting surface and the second connecting surface is stainless steel, the main component material of one end of the filter 140 is stainless steel and forms a first connecting surface made of stainless steel, and the first valve connecting pipe 112 is made of stainless steel and forms a second connecting surface made of stainless steel.

[0117] In other embodiments, please refer to Figures 8, 10 and 11, the second port 1311 is configured as a second cut-off interface, the second cut-off interface is sleeved and fixed to the external air pipe 23 or the external liquid pipe 22, the first port 1312 is configured as a first cut-off interface and is formed with a second connecting circumferential surface, one end of the filter 140 is configured as a first connecting circumferential surface, and the other end of the filter 140 is configured to sleeve and fix the air side outlet pipe 211 of the heat source side unit 21 or the liquid side outlet pipe 212 of the heat source side unit 21.

[0118] In this embodiment, the main component material of the first connecting circumferential surface and the second connecting circumferential surface is copper, or the main component material of the first connecting circumferential surface and the second connecting circumferential surface is stainless steel.

[0119] Furthermore, the main component material of the first connecting surface and the second connecting surface is copper, the main component material of one end of the filter 140 is copper or the main component material of one end of the filter 140 is stainless steel, and a copper sleeve or a copper plating layer is provided at one end of the stainless steel filter 140 to form the first connecting surface, and the main component material of the main body 13101 is copper to form a second connecting surface made of copper, or the main component of the main body 13101 is stainless steel, and a copper sleeve or a copper plating layer is provided at the second port 1311 made of stainless steel to form the second connecting surface.

[0120] In some embodiments, the main component material of the first connecting surface and the second connecting surface is stainless steel, the main component material of one end of the filter 140 is stainless steel and forms a first connecting surface made of stainless steel, the main component material of the main body 13101 is stainless steel, and the second port 1311 made of stainless steel forms the second connecting surface.

[0121] The embodiments of the present application are further described below with reference to Figures 8 to 15 :

[0122] As shown in Figures 8 and 9, the valve assembly 10 includes a first pipeline 113, a shutoff valve 130, and a filter 140. One end of the first pipeline 113 is connected to the reversing valve. As shown in Figure 10, the shutoff valve 130 includes a valve body 1310, which comprises a main body and a shutoff valve core. The main body has a first port 1312 and a second port 1311, as well as a flow channel formed between the first and second ports. The shutoff valve core is disposed within the flow channel. The second port 1311 is directly welded to one end of the first pipeline 113.

[0123] As shown in Figure 11 , the filter 140 includes a housing 1410 having a first filter interface 1411 and a second filter interface 1412. Referring to Figure 8 , the first port 1312 is directly welded to the first filter interface 1411. Alternatively, referring to Figure 9 , a first valve connecting pipe 112 is provided between the filter 140 and the shut-off valve 130 , with both ends of the first valve connecting pipe 112 being welded to the first port 1312 and the first filter interface 1411, respectively.

[0124] The valve assembly 10 of the present application is used to be connected between the reversing valve and the indoor heat exchanger 301 to control the circulation of the refrigerant gas. For example, the valve assembly 10 can be a low-pressure valve assembly. The valve assembly 10 includes a first pipeline 113, a stop valve 130 and a filter 140. The material of the first pipeline 113 can be copper, stainless steel, etc. One end of the first pipeline 113 is used to connect to the reversing valve, and the other end is connected to the second port 1311 of the valve body 1310 of the stop valve 130. The stop valve 130 can be a manual stop valve, and the material of the stop valve 130 can be copper, stainless steel, etc. The stop valve 130 can also include a valve core arranged inside the valve body 1310, and by changing the state of the valve core, the stop valve 130 can be opened and closed to the pipeline. The filter 140 includes a housing 1410 having a first filter interface 1411 and a second filter interface 1412. The first filter interface 1411 is connected to the first port 1312 of the shut-off valve 130, and the second filter interface 1412 is used to connect to the indoor heat exchanger 301. The filter 140 generally also includes a filter element disposed within the housing 1410 to enable the filter 140 to perform a filtering function.

[0125] In the valve assembly 10 of the present application, the second port 1311 of the valve body 1310 is directly welded to the first pipeline 113. For example, direct welding can be achieved through furnace brazing, high-frequency welding, or other methods. Compared to related art, two copper joints can be eliminated between the second port 1311 of the valve body 1310 and the first pipeline 113. Furthermore, the first port 1312 of the valve body 1310 can be directly welded to the first filter interface 1411 of the housing 1410. Alternatively, the first port 1312 and the first filter interface 1411 are welded together via the first valve pipe 112. Compared to related art, two copper joints can be eliminated between the first port 1312 and the first filter interface 1411. This can, on the one hand, reduce the number of welds and the number of welds, thereby reducing welding costs while also improving welding reliability and reducing the probability of weld leakage. Secondly, it can also reduce the use of copper raw materials, which in turn helps reduce production costs.

[0126] It should be noted that in the present application, direct welding of these components is first completed externally by furnace brazing, high-frequency welding, etc., to form the valve assembly 10 of the present application. After welding is completed, the entire valve assembly 10 is assembled inside the air conditioner outdoor unit. In other words, the present application mainly changes the connection method between the stop valve 130, the filter 140 and the first pipeline 113. The valve assembly 10 completes the welding and assembly work before being assembled to the air conditioner outdoor unit. Therefore, it will not be subject to the space limitations of the air conditioner outdoor unit, nor will it be affected by other components. In this way, the welding between the several components of the valve assembly 10 can be completed without removing the transition copper tube, thereby reducing the weld and welding costs, improving welding reliability and reducing production costs.

[0127] In addition, the first port 1312 of the stop valve 130 and the first filter interface 1411 can be directly welded to each other or welded to each other via the first valve connecting pipe 112. The first valve connecting pipe 112 is provided because the size of the valve assembly 10 in a certain direction can be adjusted via the first valve connecting pipe 112, thereby improving the installation convenience of the valve assembly 10 in the outdoor unit.

[0128] In some embodiments, the first pipeline 113 is a copper or stainless steel tube, and the valve body 1310 is made of copper or stainless steel. The first pipeline 113 and the valve body 1310 are made of the same material. In this embodiment, the first pipeline 113 and the valve body 1310 can be made of copper or stainless steel, thereby improving the corrosion resistance and thermal conductivity of the first pipeline 113 and the valve body 1310. Furthermore, the first pipeline 113 and the valve body 1310 are made of the same material, and direct welding between the same materials can further improve welding reliability and stability.

[0129] Optionally, the first pipeline 113 is a copper pipe, and the valve body 1310 is made of copper. Alternatively, the first pipeline 113 is a stainless steel pipe, and the valve body 1310 is made of stainless steel.

[0130] As is readily understood, welding between materials of the same material provides higher quality and greater post-weld stability. Of course, the materials of first pipeline 113 and valve body 1310 can also differ. For example, first pipeline 113 can be made of stainless steel and valve body 1310 can be made of copper; or, first pipeline 113 can be made of copper and valve body 1310 can be made of stainless steel. In this case, brazing, high-frequency welding, or other methods can also be used, and the weld quality can also meet process requirements.

[0131] In some embodiments, the valve body 1310 is made of copper or stainless steel, and the housing 1410 is made of copper or stainless steel, thereby improving the corrosion resistance and thermal conductivity of the filter 140 and the valve body 1310 .

[0132] 8, 10 and 11, when the first port 1312 is directly welded to the first filter interface 1411, the valve body 1310 and the housing 1410 are made of the same material. This arrangement allows welding between the same materials, thereby further improving welding reliability and welding stability.

[0133] Optionally, the housing 1410 is made of stainless steel, and the valve body 1310 is made of stainless steel. Alternatively, the housing 1410 is made of copper, and the valve body 1310 is made of copper.

[0134] It is readily understood that when the first port 1312 and the first filter interface 1411 are directly welded, the materials of the valve body 1310 and the housing 1410 can also be different. For example, the housing 1410 can be made of stainless steel and the valve body 1310 of copper; or, the housing 1410 can be made of copper and the valve body 1310 of stainless steel. In this case, brazing, high-frequency welding, or other methods can also be used for welding. Furthermore, the welding quality can also meet process requirements.

[0135] In some embodiments, as shown in Figures 8, 10, 11, and 13, when the first port 1312 and the first filter interface 1411 are directly welded, a portion of the first filter interface 1411 extends into the first port 1312 and is welded to the first port 1312. Alternatively, a portion of the first port 1312 extends into the first filter interface 1411 and is welded to the first filter interface 1411. In other words, there is an axial overlap between the first port 1312 and the first filter interface 1411, and the weld is located in this overlap. This arrangement can further improve the reliability and convenience of welding. Furthermore, the increased thickness of the overlap can also enhance the strength of the weld between the first port 1312 of the shut-off valve 130 and the first filter interface 1411 of the filter 140. Optionally, the gap between the overlap between the first port 1312 and the first filter interface 1411 can be filled with solder, further enhancing the convenience and reliability of welding.

[0136] In some embodiments, as shown in Figures 8 and 10, a portion of the first pipe 113 extends into the second port 1311 and is welded to the second port 1311. Alternatively, a portion of the second port 1311 extends into the first pipe 113 and is welded to the first pipe 113. In other words, there is an axial overlapping portion between the first pipe 113 and the second port 1311, and the weld is located in the overlapping portion. Such an arrangement can, on the one hand, further improve the reliability and convenience of welding, and on the other hand, the increased thickness of the overlapping portion can also improve the strength of the welded portion after welding the first pipe 113 and the second port 1311. Optionally, solder S can be filled in the gap between the overlapping portion of the first pipe 113 and the second port 1311, thereby further improving the convenience and reliability of welding.

[0137] In some embodiments, as shown in Figures 9, 10, 11, and 14, when a first valve connecting pipe 112 is provided between the filter 140 and the shut-off valve 130, a portion of the first valve connecting pipe 112 extends into the first port 1312 and is welded to the first port 1312. Alternatively, a portion of the first port 1312 extends into the first valve connecting pipe 112 and is welded to the first valve connecting pipe 112. In other words, an axial overlap exists between the first valve connecting pipe 112 and the first port 1312, and the weld is located in this overlap. This arrangement not only further improves the reliability and convenience of welding, but also increases the thickness of the overlap, thereby enhancing the strength of the welded joint between the first valve connecting pipe 112 and the first port 1312. Optionally, the gap between the overlap of the first valve connecting pipe 112 and the first port 1312 can be filled with solder S, further enhancing the convenience and reliability of welding.

[0138] In some embodiments, as shown in Figures 9, 10, 11, and 14, when a first valve connecting pipe 112 is provided between the filter 140 and the shut-off valve 130, a portion of the first valve connecting pipe 112 extends into the first filter interface 1411 and is welded to the first filter interface 1411. Alternatively, a portion of the first filter interface 1411 extends into the first valve connecting pipe 112 and is welded to the first valve connecting pipe 112. In other words, an axial overlap exists between the first valve connecting pipe 112 and the first filter interface 1411, and the weld is located in this overlap. This arrangement not only further improves welding reliability and convenience, but also increases the thickness of the overlap, thereby enhancing the strength of the welded joint between the first valve connecting pipe 112 and the first filter interface 1411. Optionally, the gap between the overlap between the first valve connecting pipe 112 and the first filter interface 1411 can be filled with solder S, further enhancing welding convenience and reliability.

[0139] It should be noted that the type of solder S can be flexibly selected according to the specific materials of the filter, the connecting pipe and the stop valve, and this application does not limit the type of solder S.

[0140] In some embodiments, when the first valve connecting pipe 112 is provided between the filter 140 and the stop valve 130, the first valve connecting pipe 112, the valve body 1310, and the housing 1410 are made of the same material. This arrangement allows welding between the same materials, thereby further improving welding reliability and stability.

[0141] Optionally, the housing 1410 is made of stainless steel, the valve body 1310 is made of stainless steel, and the first valve connecting pipe 112 is a stainless steel pipe. Alternatively, the housing 1410 is made of copper, the valve body 1310 is made of copper, and the first valve connecting pipe 112 is a copper pipe.

[0142] It is readily understood that when the first valve connecting pipe 112 is provided between the filter 140 and the shut-off valve 130, the materials of the valve body 1310, the first valve connecting pipe 112, and the housing 1410 may not be identical. For example, the housing 1410 and the valve body 1310 may be made of stainless steel, and the first valve connecting pipe 112 may be made of copper. Alternatively, the housing 1410 and the valve body 1310 may be made of copper, and the first valve connecting pipe 112 may be made of stainless steel. Alternatively, the housing 1410 may be made of stainless steel, the first valve connecting pipe 112 may be made of stainless steel, and the valve body 1310 may be made of copper. In this case, brazing, high-frequency welding, or other methods may be used to weld the three components together. Furthermore, the welding quality can meet process requirements.

[0143] In some embodiments, as shown in Figures 8 and 9, the valve assembly 10 further includes a third pipeline 111, one end of the third pipeline 111 is welded and fixed to the second filter interface 1412, and the other end of the third pipeline 111 is used to connect to the indoor heat exchanger 301. In this embodiment, the valve assembly 10 is also provided with a third pipeline 111. By providing the third pipeline 111, the size of the valve assembly 10 in a certain direction can be adjusted, thereby improving the convenience of connecting the valve assembly 10 to the indoor heat exchanger 301. Among them, the third pipeline 111 can be a copper pipe or a stainless steel pipe, and this application does not impose any restrictions on this. In addition, two copper joints are eliminated between the third pipeline 111 and the second filter interface 1412, thereby reducing the number of welds and the number of welds, reducing welding costs and production costs, and improving welding reliability.

[0144] In some embodiments, as shown in Figures 13 and 14, a portion of the third pipeline 111 extends into the second filter interface 1412 and is welded to the second filter interface 1412, or a portion of the second filter interface 1412 extends into the third pipeline 111 and is welded to the third pipeline 111. In other words, there is an axial overlapping portion between the third pipeline 111 and the second filter interface 1412, and the weld is located in the overlapping portion. Such an arrangement can, on the one hand, further improve the reliability and convenience of welding, and on the other hand, the increased thickness of the overlapping portion can also improve the strength of the welded portion after the third pipeline 111 and the second filter interface 1412 are welded. Optionally, solder S can also be filled in the gap between the overlapping portion of the third pipeline 111 and the second filter interface 1412, thereby further improving the convenience and reliability of welding.

[0145] In some embodiments, the third pipe 111 is a copper pipe or a stainless steel pipe, and the third pipe 111 is made of the same material as the housing 1410. This configuration allows welding between the same materials, thereby further improving welding reliability and welding stability.

[0146] Optionally, the third pipeline 111 is a stainless steel pipe, and the material of the housing 1410 is stainless steel. Alternatively, the third pipeline 111 is a copper pipe, and the material of the housing 1410 is copper.

[0147] It is readily understood that the materials of the third conduit 111 and the housing 1410 can also be different. For example, the housing 1410 can be made of stainless steel and the third conduit 111 can be made of copper; or alternatively, the housing 1410 can be made of copper and the third conduit 111 can be made of stainless steel. In this case, the two can be welded together using brazing, high-frequency welding, or other methods. Furthermore, the weld quality can meet process requirements.

[0148] In some embodiments, as shown in Figure 12, the first pipeline 113 includes a connected first section 1131, a second section 1132 and a third section 1133, the first section 1131 is connected to the second port 1311, the first section 1131 and the third section 1133 are in a spatial vertical relationship, and the second section 1132 connects the first section 1131 and the third section 1133.

[0149] This embodiment provides a specific structure for the first pipeline 113. The first section 1131 and the third section 1133 are spatially perpendicular, meaning they extend perpendicularly in space. For example, the first section 1131 extends horizontally, while the third section 1133 extends vertically. This arrangement prevents the first pipeline 113 from being excessively long in a single direction, thereby reducing the size of the valve assembly 10 and improving its ease of installation within the air conditioner outdoor unit.

[0150] In some embodiments, as shown in FIG8 and FIG9 , the valve assembly 10 further includes a fourth connecting pipe 1010 , one end of which is welded and fixed to the first pipeline 113 , and the fourth connecting pipe 1010 is used to connect the first pipeline 113 and the reversing valve.

[0151] In this embodiment, the first pipeline 113 is connected to the reversing valve via the fourth connecting pipe 1010. This improves the convenience of connecting the first pipeline 113 and the reversing valve. Furthermore, the two copper joints between the fourth connecting pipe 1010 and the first pipeline 113 can be eliminated, thereby reducing the number of welds and the number of welds, lowering welding and production costs and improving welding reliability.

[0152] In some embodiments, a portion of the fourth connecting pipe 1010 extends into the first pipe 113 and is welded to the first pipe 113. Alternatively, a portion of the first pipe 113 extends into the fourth connecting pipe 1010 and is welded to the fourth connecting pipe 1010. In other words, there is an axial overlap between the fourth connecting pipe 1010 and the first pipe 113, and the weld is located in the overlap. This arrangement can, on the one hand, further improve the reliability and convenience of welding. On the other hand, the increased thickness of the overlap can also improve the strength of the welded portion after the fourth connecting pipe 1010 and the first pipe 113 are welded. Optionally, the gap between the overlap between the fourth connecting pipe 1010 and the first pipe 113 can be filled with solder S, thereby further improving the convenience and reliability of welding.

[0153] In some embodiments, the fourth connecting pipe 1010 is a copper pipe or a stainless steel pipe, and the fourth connecting pipe 1010 is made of the same material as the first pipe 113. This configuration allows welding between the same materials, thereby further improving welding reliability and welding stability.

[0154] Optionally, the fourth connecting pipe 1010 is a stainless steel pipe, and the first pipe 113 is a stainless steel pipe. Alternatively, the fourth connecting pipe 1010 is a copper pipe, and the first pipe 113 is a copper pipe.

[0155] It is readily understood that the fourth connecting pipe 1010 and the first pipe 113 can be made of different materials. For example, the fourth connecting pipe 1010 can be made of stainless steel and the first pipe 113 can be made of copper; or alternatively, the fourth connecting pipe 1010 can be made of copper and the first pipe 113 can be made of stainless steel. In this case, the two can be welded together using brazing, high-frequency welding, or other methods. Furthermore, the weld quality can meet process requirements.

[0156] In some embodiments, as shown in FIG8 , the valve assembly 10 includes a temperature-sensing sleeve 170 , which is disposed on the outer wall of the first pipeline 113 and is used to mount a temperature sensor. In this embodiment, the valve assembly 10 is further provided with the temperature-sensing sleeve 170 for mounting a temperature sensor, thereby enabling monitoring of the pipeline temperature of the valve assembly 10 .

[0157] Optionally, the temperature sensing sleeve 170 may also be provided on the first valve connecting pipe 112; or, the temperature sensing sleeve 170 may also be provided on the third pipeline 111; or, the temperature sensing sleeve 170 may also be provided on the fourth connecting pipe 1010; or, the temperature sensing sleeve 170 may also be provided on the third pipeline 111; or, the temperature sensing sleeve 170 may also be provided on the filter housing 310, and this application does not impose any restrictions on this.

[0158] It should be noted that the valve assembly 10 requires a pressure test after assembly to determine if there are any leaks. Therefore, after the valve assembly 10 is welded, a sealing member is installed at the end of the third pipe 111 away from the filter 140. It is understood that once the valve assembly 10 with the sealing member passes the pressure test, the sealing member will be removed and assembled in the air conditioner outdoor unit.

[0159] Therefore, in some embodiments, as shown in Figures 8 and 13, the valve assembly 10 further includes a sealing disc 180 and a sealing connecting pipe 190. The sealing disc 180 is disposed at the end of the third pipeline 111 away from the filter 140. The inner diameter of the sealing connecting pipe 190 is smaller than the inner diameter of the third pipeline 111. One end of the sealing connecting pipe 190 is fixed to the sealing disc 180 and communicates with the third pipeline 111, while the other end of the sealing connecting pipe 190 is a sealed end. The sealing disc 180 and the sealing connecting pipe 190 enable the pressure testing process of the valve assembly 10 to be implemented.

[0160] The sealing plate 180 can have various structures, such as a U-shaped cover plate. A mounting hole can be provided in the middle of the sealing plate 180 to facilitate its installation with the sealing plate connecting pipe 190. The inner diameter of the sealing plate connecting pipe 190 can be one-sixth, one-fifth, etc., of the inner diameter of the third pipeline 111.

[0161] In some embodiments, a structurally weakened portion (not shown) is provided on the sealing tube 190, located at one end of the sealing tube 190 proximal to the sealing plate 180. The structurally weakened portion may be a structure formed by stamping or material reduction to provide a readily breakable structure. The provision of the structurally weakened portion allows personnel to break the sealing tube 190 by bending or other means to remove impurities remaining in the valve assembly 10 from the pressure test, thereby improving the cleanliness of the valve assembly 10.

[0162] In the second aspect, as shown in Figure 15, the present application proposes an air-conditioning outdoor unit 100, including a compressor 13, a reversing valve (not shown in the figure) and the valve assembly 10 described in the first aspect, the reversing valve is connected to the compressor 13, and the first pipeline 113 is connected to the reversing valve.

[0163] The air conditioner outdoor unit 100 of the present application utilizes the valve assembly 10 described in the first aspect, wherein the second port 1311 of the valve body 1310 is directly welded to the first pipeline 113. For example, direct welding can be achieved through furnace brazing, high-frequency welding, or other methods. Compared to related art, this eliminates the need for two copper joints between the second port 1311 of the valve body 1310 and the first pipeline 113. Furthermore, the first port 1312 of the valve body 1310 can be directly welded to the first filter interface 1411 of the housing 1410. Alternatively, the first port 1312 and the first filter interface 1411 can be welded together via the first valve pipe 112. Compared to related art, this eliminates the need for two copper joints between the first port 1312 and the first filter interface 1411. This reduces the number of welds and the number of welds required, thereby reducing welding costs while also improving welding reliability and lowering the probability of weld leakage. Furthermore, this reduces the use of copper raw materials, further contributing to lower production costs.

[0164] In some embodiments, as shown in FIG15 , the air conditioner outdoor unit 100 further includes a chassis 11 and a valve mounting plate 160. The compressor 13 is fixed to the chassis 11, the valve mounting plate 160 is fixed to the chassis 11, and the valve assembly 10 is fixed to the valve mounting plate 160. Thus, the valve assembly 10 and the compressor 13 are mounted and fixed on the chassis 11.

[0165] In some embodiments of the present application, one valve port of the reversing valve is connected to an inlet and outlet of the stop valve through a refrigerant pipeline, and the other inlet and outlet of the stop valve is connected to an inlet and outlet of the filter through a refrigerant pipeline, so that the refrigerant medium can flow along a valve port of the reversing valve to the stop valve and then to the filter. The refrigerant medium can also flow along the filter to the stop valve and then flow into a valve port of the reversing valve.

[0166] At least one valve port of the reversing valve is connected in series with a stop valve and a filter through a refrigerant pipeline, and the filter is arranged on a side of the stop valve away from the valve port.

[0167] In the air-conditioning outdoor unit of the present application, the pipelines connected to the different valve ports of the reversing valve can be arranged in a more reasonable path. Since a filter is no longer arranged between the reversing valve and the stop valve, the pipelines connected to the different valve ports of the reversing valve no longer need to avoid the filter between the reversing valve and the stop valve, thereby reducing the length of the refrigerant pipeline (that is, the first pipeline, the first valve connecting pipe and the third pipeline). In addition, the layout of the refrigerant pipeline is simpler, which is convenient for subsequent maintenance and repair.

[0168] The air-conditioning outdoor unit of the present application reduces the length of the refrigerant pipeline in the air-conditioning outdoor unit, thereby simplifying its structure, reducing the cost of the air-conditioning outdoor unit, and improving the product competitiveness of the air-conditioning outdoor unit.

[0169] In the air-conditioning outdoor unit of the present application, at least one filter is provided in the refrigerant pipeline assembly for filtering impurities formed in the refrigerant pipeline assembly when the air-conditioning outdoor unit is running, to prevent the impurities from entering the stop valve, reversing valve, or other equipment such as a compressor or heat exchanger of the air-conditioning outdoor unit.

[0170] The air-conditioning outdoor unit of the present application is provided with at least one stop valve in the refrigerant pipeline assembly, and the stop valve is used to prevent the refrigerant in the refrigerant pipeline assembly of the air-conditioning outdoor unit from leaking; when the air-conditioning outdoor unit is being transported or when the air-conditioning outdoor unit is in a non-working state, closing the stop valve can prevent the refrigerant in the refrigerant pipeline assembly from overflowing; when the air-conditioning outdoor unit is installed in the air conditioner 400 or the air-conditioning system, opening the stop valve, the refrigerant pipeline assembly and other equipment are connected to form a refrigerant circulation loop, so that the air conditioner 400 or the air-conditioning system can achieve cooling or heating through heat exchange of the refrigerant medium.

[0171] In order to keep the refrigerant pipeline components of the air-conditioning outdoor unit in a clean state and to protect the equipment connected to it from being corroded by impurities, the existing air-conditioning outdoor unit usually sets the stop valve at the end of the air-conditioning outdoor unit, that is, the inlet and outlet positions of the refrigerant of the air-conditioning outdoor unit. The adverse consequence is that when the air-conditioning outdoor unit is installed on the air conditioner 400 or the air-conditioning system, the outlet and inlet positions of the refrigerant of the air-conditioning outdoor unit usually need to be connected to the interface of other equipment such as the indoor unit 300 by welding. The high temperature generated by welding will affect the stop valve. In severe cases, the valve body of the stop valve will be damaged, so that the stop valve will fail and cannot connect or disconnect the refrigerant pipeline of the air-conditioning outdoor unit.

[0172] To address the above issues, the air conditioner outdoor unit of this application rationally arranges the positional relationship of the various components in the air conditioner outdoor unit, and sets filters at the inlet and outlet of the refrigerant of the air conditioner outdoor unit. The connection relationship of the filters is as follows:

[0173] One inlet and outlet of the filter is connected to the stop valve through a refrigerant pipeline, and the other inlet and outlet of the filter is connected to other equipment outside the air-conditioning outdoor unit through a refrigerant pipeline. The refrigerant pipeline connected to the other inlet and outlet of the filter extends in a direction away from the filter and the stop valve. Therefore, when the pipeline interface connected to the other inlet and outlet of the filter is connected to other equipment outside the air-conditioning outdoor unit by welding, the high temperature generated during welding can be kept away from the stop valve, preventing the high temperature from damaging the stop valve, protecting the safety of the stop valve, and also improving the environmental adaptability of the air-conditioning outdoor unit.

[0174] The air-conditioning outdoor unit of the present application sequentially connects a valve port of the reversing valve, the stop valve, and the filter through a refrigerant pipeline. In the refrigerant flow path formed, the filter is located upstream or downstream of the refrigerant flow path and away from the reversing valve and the stop valve. The air-conditioning outdoor unit of the present application solves the adverse effects of high temperature generated by welding on the stop valve.

[0175] No filter is arranged between the reversing valve and the stop valve, and there is more space between the reversing valve and the stop valve to arrange the refrigerant medium pipeline, which reduces the problem of extending the refrigerant pipeline due to interference between different refrigerant pipelines and between different refrigerant pipelines and filters.

[0176] Therefore, the air-conditioning outdoor unit of the present application can reduce the unreasonable extension of different refrigerant pipelines, reduce the effective length of the refrigerant pipelines, and reduce costs by reasonably arranging the reversing valve, stop valve and filter inside it; on the other hand, the structure inside the air-conditioning outdoor unit is simpler and the layout is more reasonable, which is convenient for later repair and maintenance; furthermore, the stop valve of the air-conditioning outdoor unit is effectively protected, reducing the adverse effects of high welding temperature, and at the same time improving the adaptability of the air-conditioning outdoor environment.

[0177] Different implementation methods of the present application are explained in detail below with reference to the accompanying drawings. It should be noted that the drawings and examples are only used to explain the present application and cannot be understood as limiting the present application.

[0178] Figure 18 is a schematic diagram of the connection between a valve port of the reversing valve of the air-conditioning outdoor unit of an embodiment of the present application, the first stop valve 131 and the filter 140, wherein the first stop valve 131 is arranged on the valve mounting plate 160. As shown in Figures 18, 20, 21 and 22, the reversing valve 120 of the air-conditioning outdoor unit 100 of the present application has multiple valve ports, including the first valve port 121. The air-conditioning outdoor unit 100 also includes a first stop valve 131 and a first filter 141, and also includes a third pipeline 111, a first valve connecting pipe 112, and a first pipeline 113.

[0179] The first valve port 121 of the reversing valve 120 is connected to one end of the first pipeline 113, the other end of the first pipeline 113 is connected to an inlet and outlet of the first stop valve 131, the other inlet and outlet of the first stop valve 131 is connected to one end of the first valve pipe 112, the other end of the first valve pipe 112 is connected to an inlet and outlet of the first filter 141, the other inlet and outlet of the first filter 141 is connected to one end of the third pipeline 111, and the other end of the third pipeline 111 extends away from the first filter 141, the first stop valve 131 and the reversing valve 120.

[0180] In the air-conditioning outdoor unit 100 of this embodiment, a gaseous refrigerant passage 114 is formed through a refrigerant pipeline between the first valve port 121 of the reversing valve 120 , the first stop valve 131 , and the first filter 141 .

[0181] In the formed gas refrigerant path, according to the different cooling or heating requirements of the air-conditioning outdoor unit 100, the flow direction of the refrigerant can flow along the direction of the first valve port 121, the first stop valve 131 and the first filter 141; the flow direction of the refrigerant can also flow along the direction of the first filter 141, the first stop valve 131 and the first valve port 121.

[0182] Among them, the other end of the third pipeline 111 is the refrigerant interface of the air-conditioning outdoor unit 100, which is used to connect with other equipment. The refrigerant interface can be the refrigerant input port of the air-conditioning outdoor unit, or the refrigerant output port of the air-conditioning outdoor unit.

[0183] In one embodiment, the air-conditioning outdoor unit 100 of the present application is applied to an air-conditioning unit 400 or an air-conditioning system. The air-conditioning outdoor unit 100 provided by the present application is provided with at least one air-conditioning outdoor unit 100 provided by the present application, and also includes at least one air-conditioning indoor unit 300, wherein the refrigerant interface of the air-conditioning indoor unit 300 is connected to the other end of the third pipeline 111 of the air-conditioning outdoor unit 100 of the present application, and a refrigerant circulation loop is formed between the refrigerant pipeline of the air-conditioning indoor unit 300 and the refrigerant pipeline assembly 110 of the air-conditioning outdoor unit 100.

[0184] When the other end of the third pipeline 111 of the air-conditioning outdoor unit 100 of the present application is connected to the refrigerant interface of the air-conditioning indoor unit 300 by welding, since the other end of the third pipeline 111 is far away from the first filter 141, the first stop valve 131 and the reversing valve 120, the high temperature generated by welding between the other end of the third pipeline 111 and the refrigerant interface of the air-conditioning indoor unit 300 will not affect the first filter 141, the first stop valve 131 and the reversing valve 120.

[0185] As shown in Figure 18, along the vertical direction, the distance between the first filter 141 and the first stop valve 131 is D1, and the distance between the first filter 141 and the reversing valve 120 is D2, D1<D2, that is, the first filter 141 is not arranged between the first stop valve 131 and the reversing valve 120, and the first filter 141 will not interfere with the refrigerant pipeline connected to the reversing valve 120, so that there is more space between the first stop valve 131 and the reversing valve 120 to arrange the refrigerant pipeline, reducing the problem of excessive length of the refrigerant pipeline and unreasonable path of the refrigerant pipeline caused by avoiding the first filter 141.

[0186] In particular, the other end of the third pipeline 111 is far away from the first stop valve 131, and the high temperature of welding will not damage the first stop valve 131, thereby ensuring the safety of the first stop valve 131 and ensuring that the refrigerant in the refrigerant pipeline assembly 110 of the air-conditioning outdoor unit 100 will not leak.

[0187] The air-conditioning outdoor unit 100 in this embodiment can not only ensure that the refrigerant pipeline is arranged in a reasonable path between the first stop valve 131 and the reversing valve 120, but also reduce the impact of the high temperature generated when the other end of the third pipeline 111 is welded with other equipment on the first filter 141, the first stop valve 131 and the reversing valve 120.

[0188] FIG19 is a schematic diagram of the connection between another valve port of the reversing valve, the second stop valve 132, and the filter 140 of the air-conditioning outdoor unit according to an embodiment of the present application, wherein the second stop valve 132 is provided on the valve mounting plate 160. As shown in FIG19, the air-conditioning outdoor unit 100 according to this embodiment includes the second stop valve 132 and the second filter 142, and also includes a fourth pipeline 115, a first valve connecting pipe 116, and a sixth pipeline 117, and also includes a reversing valve 120. The reversing valve 120 has a second valve port 122. The connection relationship between the second stop valve 132, the second filter 142, and the second valve port 122 of the reversing valve 120 is as follows:

[0189] The second valve port 122 of the reversing valve 120 is connected to one end of the sixth pipeline 117, the other end of the sixth pipeline 117 is connected to an inlet and outlet of the second stop valve 132, the other inlet and outlet of the second stop valve 132 is connected to one end of the first valve connecting pipe 116, the other end of the first valve connecting pipe 116 is connected to an inlet and outlet of the second filter 142, the other inlet and outlet of the second filter 142 is connected to one end of the fourth pipeline 115, and the other end of the fourth pipeline 115 extends away from the second filter 142, the second stop valve 132 and the reversing valve 120.

[0190] In the air-conditioning outdoor unit 100 of this embodiment, a liquid refrigerant passage 118 is formed through a refrigerant pipeline between the second valve port 122 of the reversing valve 120 , the second stop valve 132 , and the second filter 142 .

[0191] In the formed liquid refrigerant passage, according to the different cooling or heating requirements of the air-conditioning outdoor unit 100, the flow direction of the refrigerant can flow along the direction of the second valve port 122, the second stop valve 132 and the second filter 142; the flow direction of the refrigerant can also flow along the direction of the second filter 142, the second stop valve 132 and the second valve port 122.

[0192] The other end of the fourth pipeline 115 is the refrigerant interface of the air-conditioning outdoor unit 100, which is used to connect to other equipment.

[0193] In the air-conditioning outdoor unit 100 of this embodiment, the second stop valve 132 is far away from the other end of the fourth pipeline 115. When the other end of the fourth pipeline 115 is connected to other equipment by welding, the high temperature generated during the welding process will not affect the second stop valve 132, thereby ensuring the safety of the second stop valve 132 and avoiding leakage of the refrigerant medium in the refrigerant pipeline assembly 110 of the air-conditioning outdoor unit 100 due to damage to the second stop valve 132.

[0194] In one embodiment, the air-conditioning outdoor unit 100 of the present application is suitable for an air-conditioning unit 400 or an air-conditioning system, and the air-conditioning unit 400 or the air-conditioning unit 400 also includes an air-conditioning indoor unit 300, and the refrigerant interface of the air-conditioning indoor unit 300 is connected to the other end of the fourth pipeline 115, and a refrigerant circulation loop is formed between the refrigerant pipeline of the air-conditioning indoor unit 300 and the refrigerant pipeline assembly 110 of the air-conditioning outdoor unit 100.

[0195] When installing the air conditioner 400 or the air conditioning system, the refrigerant interface of the air conditioning indoor unit 300 is connected to the other end of the fourth pipeline 115 by welding. The high temperature of welding will not cause damage to the second stop valve 132, thereby ensuring the safety of the second stop valve 132, avoiding leakage of the refrigerant medium in the liquid refrigerant passage 118 of the air conditioning outdoor unit 100, and avoiding leakage of the refrigerant medium in the refrigerant circulation loop of the air conditioner 400 or the air conditioning system.

[0196] In the air-conditioning outdoor unit 100 of this embodiment, since the second filter 142 is not arranged between the second stop valve 132 and the reversing valve 120, there is a larger space between the second stop valve 132 and the reversing valve 120 for arranging the refrigerant pipeline. The refrigerant pipeline can be arranged in a more reasonable path without avoiding the second filter 142, thereby reducing unnecessary extension of the refrigerant pipeline.

[0197] In the above two embodiments, the reversing valve 120 in the air-conditioning outdoor unit 100 can be configured as a four-way valve.

[0198] The four-way valve can meet the requirements of connecting and disconnecting the gaseous refrigerant passage 114 and the liquid refrigerant passage 118 in the air conditioner 400 or the air conditioning system.

[0199] As shown in Figures 18 and 19, the air-conditioning outdoor unit 100 also includes a valve mounting plate 160, which is used to fix the first stop valve 131 or the second stop valve 132. In the air-conditioning outdoor unit 100 of this embodiment, a valve mounting plate 160 is separately provided to fix the stop valve 130 of the air-conditioning outdoor unit 100, thereby reducing the impact of vibration during the operation of the compressor and fan in the air-conditioning outdoor unit 100 on the stop valve 130.

[0200] In particular, when multiple stop valves 130 are installed in the air-conditioning outdoor unit 100, fixing the multiple stop valves 130 on the valve mounting plate 160 can reduce the impact of vibration on the stop valves 130 and the refrigerant pipeline assembly 110, and can also centrally fix the multiple stop valves 130 to facilitate subsequent repair and maintenance.

[0201] The valve mounting plate 160 is disposed in the housing 150 and can be connected to the inner wall of the housing 150 to fix the valve mounting plate 160 .

[0202] Figure 16 is a structural schematic diagram of the air-conditioning outdoor unit of an embodiment of the present application, and Figure 17 is a three-dimensional diagram of the air-conditioning outdoor unit of an embodiment of the present application. As shown in Figures 16 and 17, the air-conditioning outdoor unit 100 of this embodiment includes a shell 150, and a refrigerant pipeline assembly 110, as well as at least one stop valve 130 and at least one filter 140 are arranged in the shell 150. A reversing valve 120 is arranged on the refrigerant pipeline assembly 110. The reversing valve 120 can be a four-way valve. The valve port of the reversing valve 120, the stop valve 130 and the filter 140 are connected in sequence through the refrigerant pipeline, and the filter 140 is away from the reversing valve 120 and the stop valve 130.

[0203] As shown in Figures 16 and 17, two air outlets 153 are set on the side wall of the shell 150 of the air-conditioning outdoor unit 100. The two air outlets 153 are set at intervals. In the partial accommodation space in the shell 150 adjacent to the two air outlets 153, a refrigerant pipeline assembly 110, a stop valve 130 and a filter 140 are set.

[0204] As shown in FIG. 16 , a first installation port 151 is further provided on the housing 150 . The first installation port 151 is used for installing and removing the reversing valve 120 and the stop valve 130 .

[0205] The housing 150 is provided with a second installation opening 152 , which is used for installing and removing the filter 140 .

[0206] Among them, the second installation port 152 and the first installation port 151 can be set at intervals, and the second installation port 152 and the first installation port 151 can also be combined to form one installation port for installing and disassembling the reversing valve 120, the stop valve 130, the filter 140 and the refrigerant pipeline assembly 110.

[0207] In combination with Figures 16 and 17, it can also be seen that the filter 140 is arranged below the stop valve 130 and the reversing valve 120, so that the filter 140 can be away from the stop valve 130 and the reversing valve 120, and the refrigerant pipeline connected to the filter 140 can extend in a direction away from the reversing valve 120 and the stop valve 130. When the end of the refrigerant pipeline away from the filter 140 is welded to other equipment, the impact of the high welding temperature on the stop valve 130 can be reduced.

[0208] In one embodiment of the present application, a refrigerant passage is formed in the refrigerant pipe assembly 110 , and the filter 140 is disposed at one end of the refrigerant passage.

[0209] As shown in Figure 16, a pipe inlet and outlet 154 is also provided in the shell 150 of the air-conditioning outdoor unit 100. When the air-conditioning outdoor unit 100 of the present application is applied to the air conditioner 400 or the air-conditioning system, the refrigerant interface of the air conditioner 400 or the indoor unit 300 of the air-conditioning system can be set in the shell 150 through the pipe inlet and outlet 154 and connected to an inlet and outlet of the filter 140 of the air-conditioning outdoor unit 100.

[0210] In one embodiment of the present application, the refrigerant pipeline assembly 110 also includes a third pipeline 111, which is arranged at the tail end of the refrigerant passage. One end of the third pipeline 111 is connected to the filter 140, and the other end extends in a direction away from the stop valve 130 and the filter 140.

[0211] The other end of the third pipeline 111 is connected to the refrigerant pipeline of other equipment by welding, and can also be connected to the refrigerant pipeline of other equipment by flange connection to form a refrigerant circulation loop.

[0212] The present application also provides an air conditioner 400, comprising an air conditioner outdoor unit 100 as in any of the above embodiments, and an air conditioner indoor unit 300, wherein the number of the air conditioner outdoor units 100 and the number of the air conditioner indoor units 300 can be set to one or more.

[0213] The refrigerant pipe assembly 110 of the air-conditioning outdoor unit 100 is connected to the refrigerant pipe of the air-conditioning indoor unit 300 to form a refrigerant circulation loop for cooling or heating the air conditioner 400 .

[0214] The above are merely preferred embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this disclosure should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A valve assembly configured as a part of a heat source unit of a refrigerant circulation system, wherein: The valve assembly comprises: a stop valve having a first stop port and a second stop port, and a stop valve core located between the first stop port and the second stop port, the stop valve core being configured to open and close to connect or disconnect a refrigerant flow path between the two stop ports, the second stop port being closer to an external pipe than the first stop port; Wherein, at least one of the first cut-off interface and the second cut-off interface is connected to a filter, the filter has a first connecting circumferential surface, at least one of the first cut-off interface and the second cut-off interface has a second connecting circumferential surface, and the first connecting circumferential surface is sleeved and welded to the second connecting circumferential surface, and the main component materials of the first connecting circumferential surface and the second connecting circumferential surface are the same.

2. The valve assembly according to claim 2, wherein: The stop valve includes a main body having a first port and a second port, a flow channel formed between the first port and the second port, and the stop valve core arranged in the flow channel, and the axis of the first port and the axis of the second port are set at an angle or in parallel.

3. The valve assembly according to claim 2, wherein: The stop valve further includes a first valve connecting pipe and a second valve connecting pipe, one end of the first valve connecting pipe is sleeved and fixed on the first port, the other end of the first valve connecting pipe is configured as the first stop interface, the first stop interface is sleeved and fixed on the gas side outlet pipe of the heat source side unit or the liquid side outlet pipe of the heat source side unit, one end of the second valve connecting pipe is sleeved and fixed on the second port, the other end of the second valve connecting pipe is configured as the second stop interface and is formed with the second connecting circumferential surface, one end of the filter is configured as the first connecting circumferential surface, and the other end of the filter is configured to sleeve and fix an external gas pipe or an external liquid pipe.

4. The valve assembly according to claim 3, wherein: The main component material of the first connection circumferential surface and the second connection circumferential surface is copper, or the main component material of the first connection circumferential surface and the second connection circumferential surface is stainless steel.

5. The valve assembly according to claim 4, wherein The main component material of the first connecting surface and the second connecting surface is copper, the main component material of the main body is copper, the main component material of one end of the filter is copper or the main component material of one end of the filter is stainless steel, a copper sleeve or a copper plating is provided at one end of the stainless steel filter to form the first connecting surface, the main component material of the other end of the second valve connecting pipe is copper or the main component material of the other end of the second valve connecting pipe is stainless steel, a copper sleeve or a copper plating is provided at the other end of the stainless steel second valve connecting pipe to form the second connecting surface.

6. The valve assembly according to claim 5, wherein: The main component materials of the first connecting surface and the second connecting surface are stainless steel. The main component material of one end of the filter is stainless steel and forms the first connecting surface made of stainless steel. The second valve connecting pipe is made of stainless steel and forms the second connecting surface made of stainless steel.

7. The valve assembly according to claim 2, wherein: The stop valve further includes a first valve connecting pipe, one end of which is sleeved and fixed on the first port, and the other end of the first valve connecting pipe is configured as the first cut-off interface, and the first cut-off interface is sleeved and fixed on the gas side outlet pipe of the heat source side unit or the liquid side outlet pipe of the heat source side unit, the second port is configured as the second cut-off interface and is formed with the second connecting circumferential surface, one end of the filter is configured as the first connecting circumferential surface, and the other end of the filter is configured to sleeve and fix an external gas pipe or an external liquid pipe.

8. The valve assembly according to claim 7, wherein: The main component material of the first connection circumferential surface and the second connection circumferential surface is copper, or the main component material of the first connection circumferential surface and the second connection circumferential surface is stainless steel.

9. The valve assembly according to claim 8, wherein The main component material of the first connecting surface and the second connecting surface is copper, the main component material of one end of the filter is copper or the main component material of one end of the filter is stainless steel, a copper sleeve or a copper plating layer is provided at one end of the stainless steel filter to form the first connecting surface, the main component material of the main body is copper to form the second connecting surface made of copper, or the main component of the main body is stainless steel, a copper sleeve or a copper plating layer is provided at the second stainless steel port to form the second connecting surface.

10. The valve assembly according to claim 8, wherein The main component material of the first connecting surface and the second connecting surface is stainless steel. The main component material of one end of the filter is stainless steel and forms a first connecting surface made of stainless steel. The main component material of the main body is stainless steel, and the second port made of stainless steel forms the second connecting surface.

11. The valve assembly according to claim 2, wherein: The stop valve further includes a first valve connecting pipe, one end of which is sleeved and fixed on the first port, the other end of the first valve connecting pipe is configured as the first cut-off interface and is formed with the second connecting circumferential surface, one end of the filter is configured as the first connecting circumferential surface, the other end of the filter is configured to be sleeved and fixed to the gas side outlet pipe of the heat source unit or the liquid side outlet pipe of the heat source unit, the second port is configured as the second cut-off interface, and the second cut-off interface is sleeved and fixed to the external gas pipe or the external liquid pipe.

12. The valve assembly according to claim 11, wherein The main component material of the first connection circumferential surface and the second connection circumferential surface is copper, or the main component material of the first connection circumferential surface and the second connection circumferential surface is stainless steel.

13. The valve assembly according to claim 12, wherein: The main component material of the first connecting surface and the second connecting surface is copper, the main component material of the main body is copper, the main component material of one end of the filter is copper or the main component material of one end of the filter is stainless steel, a copper sleeve or a copper plating is provided at one end of the stainless steel filter to form the first connecting surface, the main component material of the other end of the first valve connecting pipe is copper or the main component material of the other end of the first valve connecting pipe is stainless steel, a copper sleeve or a copper plating is provided at the other end of the stainless steel first valve connecting pipe to form the second connecting surface.

14. The valve assembly according to claim 13, wherein The main component materials of the first connecting surface and the second connecting surface are stainless steel. The main component material of one end of the filter is stainless steel and forms a first connecting surface made of stainless steel. The first valve connecting pipe is made of stainless steel and forms a second connecting surface made of stainless steel.

15. The valve assembly according to claim 2, wherein: The second port is configured as the second cut-off interface, and the second cut-off interface is sleeved and fixed to an external gas pipe or an external liquid pipe. The first port is configured as the first cut-off interface and is formed with the second connecting circumferential surface. One end of the filter is configured as the first connecting circumferential surface, and the other end of the filter is configured to be sleeved and fixed to the gas side outlet pipe of the heat source side unit or the liquid side outlet pipe of the heat source side unit.

16. The valve assembly of claim 15, wherein: The main component material of the first connection circumferential surface and the second connection circumferential surface is copper, or the main component material of the first connection circumferential surface and the second connection circumferential surface is stainless steel.

17. The valve assembly of claim 16, wherein: The main component material of the first connecting surface and the second connecting surface is copper, the main component material of one end of the filter is copper or the main component material of one end of the filter is stainless steel, a copper sleeve or a copper plating layer is provided at one end of the stainless steel filter to form the first connecting surface, the main component material of the main body is copper to form the second connecting surface made of copper, or the main component of the main body is stainless steel, and a copper sleeve or a copper plating layer is provided at the second stainless steel port to form the second connecting surface.

18. The valve assembly of claim 16, wherein: The main component material of the first connecting surface and the second connecting surface is stainless steel. The main component material of one end of the filter is stainless steel and forms a first connecting surface made of stainless steel. The main component material of the main body is stainless steel, and the second port made of stainless steel forms the second connecting surface.

19. The valve assembly according to any one of claims 1 to 18, wherein: The stop valve is a liquid-side stop valve, the first stop interface is connected to the liquid-side outlet pipe of the heat source unit, and the second stop interface is connected to the external liquid pipe; or, The stop valve is a gas-side stop valve, the first stop interface is connected to the gas-side outlet pipe of the heat source unit, and the second stop interface is connected to the external gas pipe.

20. An air conditioner outdoor unit, wherein: include: compressor; a reversing valve connected to the compressor; as well as The valve assembly according to any one of claims 1 to 19, wherein the second cut-off interface is in communication with the reversing valve.

21. The air-conditioning outdoor unit according to claim 20, wherein: The air-conditioning outdoor unit 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.

22. The air conditioner outdoor unit according to claim 21, wherein: The outer periphery of the stop valve is provided with a connecting portion; the valve mounting plate is provided with a mounting groove; The stop valve is partially accommodated in the installation groove, and the connecting portion is fixedly connected to the valve installation plates on both sides of the installation groove.

23. The air conditioner outdoor unit according to claim 22, wherein: There are multiple installation slots, and the multiple installation slots are arranged at intervals; There are multiple valve assemblies, and the stop valves of the multiple valve assemblies are correspondingly arranged in the multiple installation grooves.

24. The air conditioner outdoor unit according to claim 20, wherein: The air-conditioning outdoor unit further comprises: A refrigerant pipeline assembly, the refrigerant pipeline assembly comprising a refrigerant pipeline; At least one valve port of the reversing valve is connected in series with the stop valve and the filter via the refrigerant pipeline, and the filter is arranged on a side of the stop valve away from the valve port.

25. The air conditioner outdoor unit according to claim 24, wherein: In the vertical direction, the distance between the filter and the reversing valve is D1, and the distance between the filter and the stop valve is D2, where D1>D2.

26. The air conditioner outdoor unit according to claim 24, wherein: The reversing valve, the stop valve and the filter are sequentially connected through the refrigerant pipeline to form a refrigerant flow path, and the filter is arranged at the end of the refrigerant flow path.

27. The air conditioner outdoor unit according to claim 26, wherein: The reversing valve is provided with a first valve port and a second valve port, and the air-conditioning outdoor unit further comprises a first stop valve, a first filter, a second filter and a second stop valve; The first valve port, the first stop valve and the first filter are sequentially connected through the refrigerant pipeline to form a gaseous refrigerant passage; and / or The second valve port, the second stop valve and the second filter are connected in sequence through the refrigerant pipeline to form a liquid refrigerant passage.

28. The air-conditioning outdoor unit according to any one of claims 27, wherein: The air-conditioning outdoor unit also includes a shell, and the refrigerant pipeline assembly, the reversing valve, the first stop valve, the second stop valve, the first filter and the second filter are all arranged in the shell. The shell is provided with a first mounting port, and the first mounting port is provided for the installation and removal of the reversing valve, the first stop valve and the second stop valve; and / or, the shell is provided with a second mounting port, and the second mounting port is provided for the installation and removal of the first filter and the second filter.

29. The air conditioner outdoor unit according to claim 28, wherein: The air conditioner outdoor unit further comprises a valve mounting plate, which is arranged in the shell and connected to the inner wall of the shell. The first stop valve and / or the second stop valve are arranged on the valve mounting plate.

30. The air conditioner outdoor unit according to claim 28, wherein: The air conditioner outdoor unit has at least one air outlet, and the air outlet is arranged on the side wall of the shell.

31. The air conditioner outdoor unit according to claim 27, wherein: The second filter is arranged on a side of the second stop valve away from the valve port; along the vertical direction, the distance between the second filter and the reversing valve is D1, and the distance between the second filter and the second stop valve is D2, D1>D2.

32. An air conditioner, wherein: The air conditioner includes the air conditioner outdoor unit according to any one of claims 20-31.

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