Valve assembly, air conditioner outdoor unit and air conditioner

Abstract

The utility model provides a valve assembly, an air conditioner outdoor unit and an air conditioner. The valve assembly comprises a first connecting pipe and a second connecting pipe, wherein one end of the first connecting pipe is used for being connected with the reversing valve; the stop valve comprises a valve body, the valve body is provided with a first connector and a second connector, and the first connector is directly welded and fixed to the other end of the first connecting pipe; the filter comprises a filter shell, and the filter shell is provided with a third interface and a fourth interface; the second connector and the third connector are directly welded and fixed, or a second connecting pipe is arranged between the filter and the stop valve, and the two ends of the second connecting pipe are welded and fixed to the second connector and the third connector respectively. On one hand, the number of welding seams and the welding frequency can be reduced, so that the welding reliability can be improved while the welding cost is reduced, and on the other hand, the use of copper raw materials can be reduced, and the production cost can be reduced.

Description

Technical Field

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

[0002] The stop valve applied to an air conditioner is usually connected to components such as a filter, a heat exchanger, and a reversing valve through a refrigerant connection pipe.

[0003] In related technologies, in order to improve the convenience and reliability of secondary welding between the stop valve and the filter, between the stop valve and the refrigerant connection pipe, and between the filter and the refrigerant pipeline, transition copper sleeves are provided at the inlet and outlet of the stop valve, at both ends of the refrigerant connection pipe, and at both ends of the filter. However, after the transition copper sleeves are provided, the number of welds and the number of welding times will increase, the production cost is relatively high, and the risk of leakage is also relatively large. Utility Model Content

[0004] This application provides a valve assembly, an outdoor unit of an air conditioner, and an air conditioner, aiming to improve the problems of increased welding times, increased welds, and relatively high welding costs and production costs caused by the use of copper joints.

[0005] In a first aspect, this application provides a valve assembly installed between a reversing valve and an indoor heat exchanger. The valve assembly includes: a first connection pipe, one end of the first connection pipe is used to connect the reversing valve; a stop valve, the stop valve includes a valve body, the valve body has a first interface and a second interface, and the first interface is directly welded and fixed to the other end of the first connection pipe; and a filter, the filter includes a filter housing, the filter housing has a third interface and a fourth interface; wherein, the second interface is directly welded and fixed to the third interface, or a second connection pipe is provided between the filter and the stop valve, and both ends of the second connection pipe are respectively welded and fixed to the second interface and the third interface.

[0006] In the valve assembly of this application, the first interface of the valve body is directly welded and connected to the first connection pipe. For example, direct welding between the two can be achieved through methods such as furnace brazing and high-frequency welding. Compared with related technologies, two copper joints can be saved between the first interface of the valve body and the first connection pipe. Further, the second interface of the valve body and the third interface of the filter housing can be directly welded and connected. Or, the second interface and the third interface are welded and connected through a second connection pipe. Compared with related technologies, two copper joints can be saved between the second interface and the third interface. Thus, on the one hand, the number of welds and the number of welding times can be reduced, thereby reducing the welding cost while also improving the welding reliability and reducing the probability of leakage at the welds. On the second hand, the use of copper raw materials can also be reduced, which is further beneficial to reducing the production cost.

[0007] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the first connecting pipe is a copper pipe or a stainless-steel pipe, the material of the valve body is copper or stainless steel, and the materials of the first connecting pipe and the valve body are the same.

[0008] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the material of the valve body is copper or stainless steel, and the material of the filter housing is copper or stainless steel;

[0009] When the second interface and the third interface are directly welded and fixed, the materials of the valve body and the filter housing are the same.

[0010] Combined with the first aspect and the above implementation manners, in some possible implementation manners, a part of the first connecting pipe extends into the first interface and is welded and fixed to the first interface; or, a part of the first interface extends into the first connecting pipe and is welded and fixed to the first connecting pipe.

[0011] Combined with the first aspect and the above implementation manners, in some possible implementation manners, when a second connecting pipe is provided between the filter and the stop valve, a part of the second connecting pipe extends into the second interface and is welded and fixed to the second interface, or, a part of the second interface extends into the second connecting pipe and is welded and fixed to the second connecting pipe.

[0012] Combined with the first aspect and the above implementation manners, in some possible implementation manners, when a second connecting pipe is provided between the filter and the stop valve, a part of the second connecting pipe extends into the third interface and is welded and fixed to the third interface, or, a part of the third interface extends into the second connecting pipe and is welded and fixed to the second connecting pipe.

[0013] Combined with the first aspect and the above implementation manners, in some possible implementation manners, when a second connecting pipe is provided between the filter and the stop valve, the materials of the second connecting pipe, the valve body, and the filter housing are the same.

[0014] Combined with the first aspect and the above implementation manners, in some possible implementation manners, when the second interface and the third interface are directly welded and fixed, a part of the second interface extends into the third interface and is welded and fixed to the third interface, or, a part of the third interface extends into the second interface and is welded and fixed to the second interface.

[0015] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the valve assembly further includes a third connecting pipe, one end of the third connecting pipe is welded and fixed to the fourth interface, and the other end of the third connecting pipe is used to connect to the indoor heat exchanger.

[0016] Combined with the first aspect and the above implementation manners, in some possible implementation manners, a part of the third connecting pipe extends into the fourth interface and is fixedly welded to the fourth interface; or, a part of the fourth interface extends into the third connecting pipe and is fixedly welded to the third connecting pipe.

[0017] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the third connecting pipe is a copper pipe or a stainless steel pipe, and the third connecting pipe has the same material as the filter housing.

[0018] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the first connecting pipe includes a first section, a second section, and a third section that are connected. The first section is connected to the first interface, the first section and the third section are in a spatially perpendicular relationship, and the second section connects the first section and the third section.

[0019] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the valve assembly further includes a fourth connecting pipe. One end of the fourth connecting pipe is fixedly welded to the first connecting pipe, and the fourth connecting pipe is used to connect the first connecting pipe and the reversing valve.

[0020] Combined with the first aspect and the above implementation manners, in some possible implementation manners, a part of the fourth connecting pipe extends into the first connecting pipe and is fixedly welded to the first connecting pipe; or, a part of the first connecting pipe extends into the fourth connecting pipe and is fixedly welded to the fourth connecting pipe.

[0021] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the fourth connecting pipe is a copper pipe or a stainless steel pipe, and the fourth connecting pipe and the first connecting pipe have the same material.

[0022] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the valve assembly includes a temperature sensing sleeve, and the temperature sensing sleeve is disposed on the outer wall of the first connecting pipe, and the temperature sensing sleeve is used to mount a temperature sensor.

[0023] Combined with the first aspect and the above implementation manners, in some possible implementation manners, the valve assembly further includes: a sealing piece, which is disposed at one end of the third connecting pipe away from the filter; a sealing piece connecting pipe, the inner diameter of the sealing piece connecting pipe is smaller than the inner diameter of the third connecting pipe, one end of the sealing piece connecting pipe is fixed to the sealing piece and communicates with the third connecting pipe, and the other end of the sealing piece connecting pipe is a closed end.

[0024] Combined with the first aspect and the above implementation manners, in some possible implementation manners, a structurally weak part is provided on the cover sheet connection pipe, and the structurally weak part is disposed at one end of the cover sheet connection pipe close to the cover sheet.

[0025] In a second aspect, the present application provides an outdoor air conditioner, including: a compressor; a reversing valve connected to the compressor; and the valve assembly according to the first aspect, wherein the first connection pipe is connected to the reversing valve.

[0026] Combined with the second aspect and the above implementation manners, in some possible implementation manners, the outdoor air conditioner further includes a chassis and a valve mounting plate, the compressor is fixed to the chassis, the valve mounting plate is fixed to the chassis, and the valve assembly is fixed to the valve mounting plate.

[0027] In a third aspect, the present application provides an air conditioner, including the outdoor air conditioner according to the second aspect. Description of the Drawings

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0029] Figure 1 It is a schematic structural diagram of one kind of valve assembly provided by an embodiment of the present application;

[0030] Figure 2 It is another schematic structural diagram of the valve assembly provided by an embodiment of the present application;

[0031] Figure 3 It is a schematic structural diagram of the stop valve provided by an embodiment of the present application;

[0032] Figure 4 It is a schematic structural diagram of the filter provided by an embodiment of the present application;

[0033] Figure 5 It is a schematic structural diagram of the first connection pipe provided by an embodiment of the present application;

[0034] Figure 6 It is Figure 1 a schematic cross-sectional structural diagram at A-A in

[0035] Figure 7 It is Figure 2 a schematic cross-sectional structural diagram at B-B in

[0036] Figure 8Schematic diagram of a partial structure of an outdoor unit of an air conditioner provided by an embodiment of the present application.

[0037] Explanation of reference numerals:

[0038] 1—Outdoor unit of air conditioner;

[0039] 10—Valve assembly; 11—Chassis; 12—Valve mounting plate; 13—Compressor;

[0040] 100—First connecting pipe; 110—First section; 120—Second section; 130—Third section;

[0041] 200—Stop valve; 210—Valve body; 211—First interface; 212—Second interface;

[0042] 300—Filter; 310—Filter housing; 311—Third interface; 312—Fourth interface;

[0043] 400—Second connecting pipe;

[0044] 500—Third connecting pipe;

[0045] 600—Fourth connecting pipe;

[0046] 700—Temperature sensing sleeve;

[0047] 800—Sealing piece;

[0048] 900—Sealing piece connecting pipe. Detailed implementation manners

[0049] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0050] In the related art, the internal space of the outdoor unit of the air conditioner is limited, and there are many internal parts. The connection situations between different pipelines, between different valve bodies, and between the valve body and the pipeline are various. In order to improve the reliability of welding and the sealing performance of the connection, reduce the interference caused by welding, and at the same time meet the various connection methods, transition copper joints are welded in advance at both ends of the internal parts of the outdoor unit of the air conditioner. Different components are connected into one body by welding copper joints to copper joints and are fixed inside the outdoor unit of the air conditioner.

[0051] The advantage of using copper joints to weld the parts in the outdoor unit of the above-mentioned air conditioner is that, firstly, as standardized parts, copper joints can realize convenient connection of pipes of different diameters and directions, and at the same time, copper joints can provide additional mechanical strength for welding points to improve the strength of two copper parts after welding. Secondly, the welding difficulty between copper and copper is relatively low. In some cases, manual welding can be used to reduce the probability of interference with other parts during welding. Thirdly, the use of copper joints can make the connection of pipelines more flexible, easy to disassemble and reassemble, and convenient for maintenance or pipeline changes. Fourthly, since they are all copper joints and copper joints, the welding requirements between parts can be unified, and the welding process can also be standardized and universal.

[0052] However, if all parts in the air conditioner outdoor unit are connected by copper joints and copper joints, it will also bring many disadvantages. First, since copper joints are added at both ends of the parts, welding is required between the parts and the copper joints, and welding is also required between the copper joints. This will increase the overall number of welding times between the two parts and increase the welds, thereby increasing the welding cost. Second, after the welds increase, the welding reliability will decrease, and the probability of poor welding such as cracks and gaps will increase, which will lead to a decrease in production yield. Third, the cost of copper materials is relatively high. If copper joints are added, the amount of copper joints used will be large, which will lead to an increase in production costs.

[0053] Based on the above problems, the embodiment of the present application proposes a valve assembly 10, an air conditioner outdoor unit 1 and an air conditioner to improve the problems of increased welding times, increased welds, higher welding costs and higher production costs caused by the use of copper joints.

[0054] The valve assembly 10 is installed between the reversing valve (not shown) and the indoor heat exchanger (not shown). The reversing valve may be, for example, a four-way valve. Figure 1 and Figure 2 As shown, the valve assembly 10 includes a first connecting pipe 100, a stop valve 200 and a filter 300, and one end of the first connecting pipe 100 is used to connect the reversing valve. Figure 3 As shown, the stop valve 200 includes a valve body 210, and the valve body 210 has a first interface 211 and a second interface 212. The first interface 211 is directly welded and fixed to the other end of the first pipe 100. Figure 4 As shown, the filter 300 includes a filter housing 310, and the filter housing 310 has a third interface 311 and a fourth interface 312. Figure 1 , the second interface 212 and the third interface 311 are directly welded and fixed, or, please refer to Figure 2, a second connecting pipe 400 is provided between the filter 300 and the stop valve 200, and both ends of the second connecting pipe 400 are fixedly welded to the second interface 212 and the third interface 311 respectively.

[0055] The valve assembly 10 of the present application is used to be connected between a reversing valve and an indoor heat exchanger to control the flow of refrigerant gas. For example, the valve assembly 10 can be a low-pressure valve assembly. The valve assembly 10 includes a first connecting pipe 100, a stop valve 200 and a filter 300. The material of the first connecting pipe 100 can be copper, stainless steel, etc. One end of the first connecting pipe 100 is used to connect to the reversing valve, and the other end is connected to the first interface 211 of the valve body 210 of the stop valve 200. The stop valve 200 can be a manual stop valve, and the material of the stop valve 200 can be copper, stainless steel, etc. The stop valve 200 can also include a valve core provided inside the valve body 210, and by changing the state of the valve core, the stop valve 200 can be used to control the on-off of the pipeline. The filter 300 includes a filter housing 310, and the filter housing 310 has a third interface 311 and a fourth interface 312. The third interface 311 is connected to the second interface 212 of the stop valve 200, and the fourth interface 312 is used to connect to the indoor heat exchanger. The filter 300 generally also includes a filter element provided inside the filter housing 310, so that the filter 300 can play a filtering role.

[0056] In the valve assembly 10 of the present application, the first interface 211 of the valve body 210 is directly welded to the first connecting pipe 100. For example, the direct welding between the two can be achieved by methods such as furnace brazing and high-frequency welding. Compared with the related art, two copper joints can be saved between the first interface 211 of the valve body 210 and the first connecting pipe 100. Further, the second interface 212 of the valve body 210 and the third interface 311 of the filter housing 310 can be directly welded. Or, the second interface 212 and the third interface 311 are welded through the second connecting pipe 400. Compared with the related art, two copper joints can be saved between the second interface 212 and the third interface 311. Thus, on the one hand, the number of welds and the number of welding times can be reduced, so that while reducing the welding cost, the welding reliability can also be improved, and the probability of leakage at the welds can be reduced. On the second hand, the use of copper raw materials can also be reduced, which is further beneficial to reducing the production cost.

[0057] It should be noted that in this application, the direct welding of these components is first completed externally through methods such as furnace brazing and high-frequency welding to form the valve assembly 10 of this application. After welding is completed, the entire valve assembly 10 is then assembled inside the air conditioner outdoor unit. That is to say, this application mainly changes the connection method among the stop valve 200, the filter 300, and the first connecting pipe 100. The welding and assembly work of the valve assembly 10 is completed before it is assembled into the air conditioner outdoor unit. Therefore, it will not be restricted by the space of the air conditioner outdoor unit, nor will it be affected by other components. In this way, the welding between several components of the valve assembly 10 can be completed without the transition copper pipe, thereby reducing the weld seams and welding costs, improving the welding reliability, and reducing the production cost.

[0058] In addition, the second interface 212 and the third interface 311 of the stop valve 200 can be directly welded and fixed, or can be welded and fixed through the second connecting pipe 400. The reason for setting the second connecting pipe 400 is that the size of the valve assembly 10 in a certain direction can be adjusted through the second connecting pipe 400, thereby improving the installation convenience of the valve assembly 10 inside the outdoor unit.

[0059] In some embodiments, the first connecting pipe 100 is a copper pipe or a stainless steel pipe, and the material of the valve body 210 is copper or stainless steel. The materials of the first connecting pipe 100 and the valve body 210 are the same in this embodiment. In this embodiment, the materials of the first connecting pipe 100 and the valve body 210 can be copper or stainless steel, thereby improving the corrosion resistance and heat conduction performance of the first connecting pipe 100 and the valve body 210. In addition, the materials of the first connecting pipe 100 and the valve body 210 are the same, and the direct welding between the same materials can further improve the welding reliability and welding stability.

[0060] Optionally, the first connecting pipe 100 is a copper pipe, and the material of the valve body 210 is copper. Or, the first connecting pipe 100 is a stainless steel pipe, and the material of the valve body 210 is stainless steel.

[0061] It is easy to understand that the welding quality between the same materials is higher, and the stability after welding is better. Of course, the materials of the first connecting pipe 100 and the valve body 210 can also be different. For example, the first connecting pipe 100 is a stainless steel pipe, and the material of the valve body 210 is copper; or, the first connecting pipe 100 is a copper pipe, and the material of the valve body 210 is stainless steel. At this time, welding can also be carried out through methods such as brazing and high-frequency welding, and the welding quality of the two can also meet the process requirements.

[0062] In some embodiments, the material of the valve body 210 is copper or stainless steel, and the material of the filter housing 310 is copper or stainless steel. Thereby, the corrosion resistance and heat conduction performance of the filter 300 and the valve body 210 can be improved.

[0063] Further, as Figure 1, Figure 3 and Figure 4 As shown in Figure 3 and Figure 4 , when the second interface 212 and the third interface 311 are directly welded and fixed, the valve body 210 and the filter housing 310 are made of the same material. Such a setting enables welding between the same materials, thereby further improving the welding reliability and welding stability.

[0064] Optionally, the filter housing 310 is made of stainless steel and the valve body 210 is made of stainless steel. Or, the filter housing 310 is made of copper and the valve body 210 is made of copper.

[0065] It is easy to understand that when the second interface 212 and the third interface 311 are directly welded and fixed, the valve body 210 and the filter housing 310 may also be made of different materials. For example, the filter housing 310 is made of stainless steel and the valve body 210 is made of copper; or, the filter housing 310 is made of copper and the valve body 210 is made of stainless steel. At this time, welding can also be performed by methods such as brazing and high-frequency welding. And the welding quality of the two can also meet the process requirements.

[0066] In some embodiments, as Figure 1 , Figure 3 , Figure 4 and Figure 6 shown, when the second interface 212 and the third interface 311 are directly welded and fixed, a part of the third interface 311 extends into the second interface 212 and is welded and fixed to the second interface 212. Or, a part of the second interface 212 extends into the third interface 311 and is welded and fixed to the third interface 311. That is to say, there is an axial overlapping part between the second interface 212 and the third interface 311, and the weld seam is located in this overlapping part. Such a setting can, on the one hand, further improve the welding reliability and convenience, and on the other hand, the thickness of the overlapping part increases, which can also improve the strength of the welded part of the second interface 212 of the globe valve 200 and the third interface 311 of the filter 300 after welding. Optionally, solder can also be filled in the gap of the overlapping part between the second interface 212 and the third interface 311, thereby further improving the welding convenience and reliability.

[0067] In some embodiments, as Figure 1 and Figure 3As shown, a part of the first connecting pipe 100 extends into the first interface 211 and is fixedly welded to the first interface 211. Alternatively, a part of the first interface 211 extends into the first connecting pipe 100 and is fixedly welded to the first connecting pipe 100. That is to say, there is an axial overlapping part between the first connecting pipe 100 and the first interface 211, and the weld seam is located in this overlapping part. With such a setting, on the one hand, the reliability and convenience of welding can be further improved. On the other hand, the thickness of the overlapping part increases, and the strength of the welded part after welding between the first connecting pipe 100 and the first interface 211 can also be improved. Optionally, solder S can also be filled in the gap of the overlapping part between the first connecting pipe 100 and the first interface 211, thereby further improving the convenience and reliability of welding.

[0068] In some embodiments, as Figure 2 , Figure 3 , Figure 4 and Figure 7 shown, when a second connecting pipe 400 is provided between the filter 300 and the stop valve 200, a part of the second connecting pipe 400 extends into the second interface 212 and is fixedly welded to the second interface 212, or a part of the second interface 212 extends into the second connecting pipe 400 and is fixedly welded to the second connecting pipe 400. That is to say, there is an axial overlapping part between the second connecting pipe 400 and the second interface 212, and the weld seam is located in this overlapping part. With such a setting, on the one hand, the reliability and convenience of welding can be further improved. On the other hand, the thickness of the overlapping part increases, and the strength of the welded part after welding between the second connecting pipe 400 and the second interface 212 can also be improved. Optionally, solder S can also be filled in the gap of the overlapping part between the second connecting pipe 400 and the second interface 212, thereby further improving the convenience and reliability of welding.

[0069] In some embodiments, as Figure 2 , Figure 3 , Figure 4 and Figure 7 shown, when a second connecting pipe 400 is provided between the filter 300 and the stop valve 200, a part of the second connecting pipe 400 extends into the third interface 311 and is fixedly welded to the third interface 311, or a part of the third interface 311 extends into the second connecting pipe 400 and is fixedly welded to the second connecting pipe 400. That is to say, there is an axial overlapping part between the second connecting pipe 400 and the third interface 311, and the weld seam is located in this overlapping part. With such a setting, on the one hand, the reliability and convenience of welding can be further improved. On the other hand, the thickness of the overlapping part increases, and the strength of the welded part after welding between the second connecting pipe 400 and the third interface 311 can also be improved. Optionally, solder S can also be filled in the gap of the overlapping part between the second connecting pipe 400 and the third interface 311, thereby further improving the convenience and reliability of welding.

[0070] It should be noted that the type of solder S can be flexibly selected according to the specific materials of the filter, the adapter pipe, and the stop valve, and the present application does not limit the types of solder S.

[0071] In some embodiments, when a second adapter pipe 400 is provided between the filter 300 and the stop valve 200, the materials of the second adapter pipe 400, the valve body 210, and the filter housing 310 are the same. With such a setting, welding is performed between the same materials, thereby further improving the welding reliability and welding stability.

[0072] Optionally, the material of the filter housing 310 is stainless steel, the material of the valve body 210 is stainless steel, and the second adapter pipe 400 is a stainless steel pipe. Alternatively, the material of the filter housing 310 is copper, the material of the valve body 210 is copper, and the second adapter pipe 400 is a copper pipe.

[0073] It is easy to understand that when a second adapter pipe 400 is provided between the filter 300 and the stop valve 200, the materials of the valve body 210, the second adapter pipe 400, and the filter housing 310 may not be completely the same. For example, the materials of the filter housing 310 and the valve body 210 are stainless steel, and the second adapter pipe 400 is a copper pipe; or the materials of the filter housing 310 and the valve body 210 are copper, and the second adapter pipe 400 is a stainless steel pipe. Or the material of the filter housing 310 is stainless steel, the second adapter pipe 400 is a stainless steel pipe, and the material of the valve body 210 is copper, etc. At this time, the welding of the three can also be achieved by methods such as brazing and high-frequency welding. And the welding quality of the three can also meet the process requirements.

[0074] In some embodiments, as Figure 1 and Figure 2 shown, the valve assembly 10 further includes a third adapter pipe 500. One end of the third adapter pipe 500 is fixedly welded to the fourth interface 312, and the other end of the third adapter pipe 500 is used to connect to the indoor heat exchanger. In this embodiment, the valve assembly 10 is further provided with a third adapter pipe 500. By providing the third adapter pipe 500, the size of the valve assembly 10 in a certain direction can be adjusted, and thus the convenience of connecting the valve assembly 10 to the indoor heat exchanger can be improved. Among them, the third adapter pipe 500 can be a copper pipe or a stainless steel pipe, and the present application does not limit this. In addition, two copper joints are omitted between the third adapter pipe 500 and the fourth interface 312, thereby reducing the number of welds and welding times, reducing the welding cost and production cost, and improving the welding reliability.

[0075] In some embodiments, as Figure 6 and Figure 7As shown, a part of the third pipe 500 extends into the fourth interface 312 and is fixed by welding to the fourth interface 312, or a part of the fourth interface 312 extends into the third pipe 500 and is fixed by welding to the third pipe 500. That is to say, there is an axial overlapping part between the third pipe 500 and the fourth interface 312, and the weld seam is located in this overlapping part. With such a setting, on the one hand, the reliability and convenience of welding can be further improved. On the other hand, the thickness of the overlapping part increases, which can also improve the strength of the welded part after welding the third pipe 500 and the fourth interface 312. Optionally, solder S can also be filled in the gap of the overlapping part between the third pipe 500 and the fourth interface 312, thereby further improving the convenience and reliability of welding.

[0076] In some embodiments, the third pipe 500 is a copper pipe or a stainless steel pipe, and the third pipe 500 has the same material as the filter housing 310. With such a setting, welding is carried out between the same materials, which can further improve the welding reliability and welding stability.

[0077] Optionally, the third pipe 500 is a stainless steel pipe, and the material of the filter housing 310 is stainless steel. Or, the third pipe 500 is a copper pipe, and the material of the filter housing 310 is copper.

[0078] It is easy to understand that the materials of the third pipe 500 and the filter housing 310 can also be different. For example, the material of the filter housing 310 is stainless steel, and the third pipe 500 is a copper pipe; or, the material of the filter housing 310 is copper, and the third pipe 500 is a stainless steel pipe. At this time, the welding between the two can also be realized by means of brazing, high-frequency welding, etc. And the welding quality of the two can also meet the process requirements.

[0079] In some embodiments, as Figure 5 shown, the first pipe 100 includes a connected first section 110, a second section 120, and a third section 130. The first section 110 is connected to the first interface 211. The first section 110 and the third section 130 are in a spatially perpendicular relationship, and the second section 120 connects the first section 110 and the third section 130.

[0080] This embodiment proposes the specific structure of the first pipe 100. The first section 110 and the third section 130 are spatially perpendicular, that is, the extending directions of the two are in a perpendicular state in space. For example, the first section 110 extends along the horizontal plane direction, and the third section 130 extends along the vertical direction. Such a setting can avoid the overlong size of the first pipe 100 in a single direction, and further shorten the volume of the valve assembly 10 to improve the convenience of its assembly inside the air conditioner outdoor unit.

[0081] In some embodiments, as Figure 1 andFigure 2 As shown, the valve assembly 10 further includes a fourth connecting pipe 600. One end of the fourth connecting pipe 600 is fixedly welded to the first connecting pipe 100. The fourth connecting pipe 600 is used to connect the first connecting pipe 100 and the reversing valve.

[0082] In this embodiment, the first connecting pipe 100 is connected to the reversing valve through the fourth connecting pipe 600. On the one hand, the convenience of the connection between the first connecting pipe 100 and the reversing valve can be improved. On the other hand, two copper joints can be omitted between the fourth connecting pipe 600 and the first connecting pipe 100, thereby reducing the number of welds and welding times, reducing the welding cost and production cost, and improving the welding reliability.

[0083] In some embodiments, a part of the fourth connecting pipe 600 extends into the first connecting pipe 100 and is fixedly welded to the first connecting pipe 100. Alternatively, a part of the first connecting pipe 100 extends into the fourth connecting pipe 600 and is fixedly welded to the fourth connecting pipe 600. That is to say, there is an axial overlapping part between the fourth connecting pipe 600 and the first connecting pipe 100, and the weld is located in this overlapping part. With such a setting, on the one hand, the welding reliability and convenience can be further improved. On the other hand, the thickness of the overlapping part increases, and the strength of the welded part after welding the fourth connecting pipe 600 and the first connecting pipe 100 can also be improved. Optionally, solder S can also be filled in the gap of the overlapping part between the fourth connecting pipe 600 and the first connecting pipe 100, thereby further improving the welding convenience and reliability.

[0084] In some embodiments, the fourth connecting pipe 600 is a copper pipe or a stainless steel pipe, and the fourth connecting pipe 600 and the first connecting pipe 100 are made of the same material. With such a setting, welding between the same materials is achieved, thereby further improving the welding reliability and welding stability.

[0085] Optionally, the fourth connecting pipe 600 is a stainless steel pipe and the first connecting pipe 100 is a stainless steel pipe. Alternatively, the fourth connecting pipe 600 is a copper pipe and the first connecting pipe 100 is a copper pipe.

[0086] It is easy to understand that the fourth connecting pipe 600 and the first connecting pipe 100 may also be made of different materials. For example, the fourth connecting pipe 600 is a stainless steel pipe and the first connecting pipe 100 is a copper pipe; or the fourth connecting pipe 600 is a copper pipe and the first connecting pipe 100 is a stainless steel pipe. At this time, the welding between the two can also be achieved by brazing, high-frequency welding and other methods. And the welding quality of the two can also meet the process requirements.

[0087] In some embodiments, such as Figure 1As shown, the valve assembly 10 includes a temperature-sensing sleeve 700 which is arranged on the outer wall of the first connecting pipe 100 and is used for installing a temperature sensor. In this embodiment, the valve assembly 10 is also provided with the temperature-sensing sleeve 700 to install the temperature sensor, so as to monitor the pipeline temperature of the valve assembly 10.

[0088] Optionally, the temperature-sensing sleeve 700 can also be arranged on the second connecting pipe 400; or, the temperature-sensing sleeve 700 can also be arranged on the third connecting pipe 500; or, the temperature-sensing sleeve 700 can also be arranged on the fourth connecting pipe 500; or, the temperature-sensing sleeve 700 can also be arranged on the third connecting pipe 500; or, the temperature-sensing sleeve 700 can also be arranged on the filter housing 310, and the present application does not limit this.

[0089] It should be noted that the valve assembly 10 needs to be pressure-tested after assembly to determine whether there are leakage points. Therefore, after the valve assembly 10 is welded and connected, a sealing member needs to be arranged at one end of the third connecting pipe 500 away from the filter 300. It can be understood that after the valve assembly 10 with the sealing member is qualified in the pressure test, the staff will disassemble the sealing member and assemble it in the outdoor unit of the air conditioner.

[0090] Thus, in some embodiments, as Figure 1 and Figure 6 shown, the valve assembly 10 further includes a sealing piece 800 and a sealing-piece connecting pipe 900. The sealing piece 800 is arranged at one end of the third connecting pipe 500 away from the filter 300. The inner diameter of the sealing-piece connecting pipe 900 is smaller than the inner diameter of the third connecting pipe 500. One end of the sealing-piece connecting pipe 900 is fixed to the sealing piece 800 and communicates with the third connecting pipe 500, and the other end of the sealing-piece connecting pipe 900 is a closed end. Through the sealing piece 800 and the sealing-piece connecting pipe 900, the pressure test process of the valve assembly 10 can be realized.

[0091] Among them, the sealing piece 800 can adopt various structures. For example, it can be a cover plate with a U-shaped cross-section. An installation hole can be opened in the middle of the sealing piece 800 to facilitate its installation with the sealing-piece connecting pipe 900. The inner diameter of the sealing-piece connecting pipe 900 can be one-sixth, one-fifth, etc. of the inner diameter of the third connecting pipe 500.

[0092] In some embodiments, a structurally weak part (not shown in the figure) is arranged on the sealing-piece connecting pipe 900, and the structurally weak part is arranged at one end of the sealing-piece connecting pipe 900 close to the sealing piece 800. The structurally weak part can be a weak structure formed by stamping or reducing materials and is easy to break. By arranging the structurally weak part, personnel can break the sealing-piece connecting pipe 900 by bending or other means to drain the impurities remaining in the valve assembly 10 due to the pressure test, which is beneficial to improving the cleanliness of the valve assembly 10.

[0093] Second, as Figure 8As shown in the figure, the present application provides an outdoor air conditioner 1, which includes 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 connecting pipe 100 is connected to the reversing valve.

[0094] In the outdoor air conditioner 1 of the present application, the valve assembly 10 described in the first aspect is used, and the first interface 211 of the valve body 210 is directly welded to the first connecting pipe 100. For example, the direct welding between the two can be achieved by furnace brazing, high-frequency welding, etc. Compared with the related art, two copper joints can be saved between the first interface 211 of the valve body 210 and the first connecting pipe 100. Further, the second interface 212 of the valve body 210 and the third interface 311 of the filter housing 310 can be directly welded. Alternatively, the second interface 212 and the third interface 311 are welded through the second connecting pipe 400. Compared with the related art, two copper joints can be saved between the second interface 212 and the third interface 311. Thus, on the one hand, the number of welds and the number of welding times can be reduced, thereby reducing the welding cost while improving the welding reliability and reducing the probability of leakage at the welds. On the second hand, the use of copper raw materials can also be reduced, which is further beneficial to reducing the production cost.

[0095] In some embodiments, as Figure 8 shown, the outdoor air conditioner 1 further includes a chassis 11 and a valve mounting plate 12. The compressor 13 is fixed to the chassis 11, the valve mounting plate 12 is fixed to the chassis 11, and the valve assembly 10 is fixed to the valve mounting plate 12. Thus, the installation and fixation of the valve assembly 10 and the compressor 13 on the chassis 11 are realized.

[0096] On the third hand, the present application provides an air conditioner, which includes the outdoor air conditioner 1 described in the second aspect. Thus, on the one hand, the number of welds and the number of welding times can be reduced, thereby reducing the welding cost while improving the welding reliability and reducing the probability of leakage at the welds. On the second hand, the use of copper raw materials can also be reduced, which is further beneficial to reducing the production cost of the air conditioner.

[0097] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0098] In addition, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0099] In the present utility model, unless otherwise clearly specified and defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0100] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0101] In the description of this specification, descriptions with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0102] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

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

2. The valve assembly according to claim 1, characterized in that The first connecting pipe is a copper pipe or a stainless steel pipe, the valve body is made of copper or stainless steel, and the first connecting pipe and the valve body are made of the same material.

3. The valve assembly according to claim 1, characterized in that The valve body is made of copper or stainless steel, and the filter housing is made of copper or stainless steel; When the second interface and the third interface are directly welded and fixed, the valve body and the filter housing are made of the same material.

4. The valve assembly according to claim 1, characterized in that A portion of the first connecting pipe extends into the first interface and is welded and fixed to the first interface; Alternatively, a portion of the first interface extends into the first connecting pipe and is welded and fixed to the first connecting pipe.

5. The valve assembly according to claim 1, characterized in that When a second connecting pipe is provided between the filter and the stop valve, a portion of the second connecting pipe extends into the second interface and is welded and fixed to the second interface, or a portion of the second interface extends into the second connecting pipe and is welded and fixed to the second connecting pipe.

6. The valve assembly according to claim 1, characterized in that When a second connecting pipe is provided between the filter and the stop valve, a portion of the second connecting pipe extends into the third interface and is welded and fixed to the third interface, or a portion of the third interface extends into the second connecting pipe and is welded and fixed to the second connecting pipe.

7. The valve assembly according to claim 1, characterized in that In the case where a second connecting pipe is provided between the filter and the stop valve, the second connecting pipe, the valve body and the filter housing are made of the same material.

8. The valve assembly according to claim 1, characterized in that When the second interface is directly welded to the third interface, a portion of the second interface extends into the third interface and is welded to the third interface, or a portion of the third interface extends into the second interface and is welded to the second interface.

9. The valve assembly according to claim 1, characterized in that The valve assembly further includes a third connecting pipe, one end of which is welded and fixed to the fourth interface, and the other end of which is used to connect to the indoor heat exchanger.

10. The valve assembly according to claim 9, characterized in that A portion of the third connecting pipe extends into the fourth interface and the fourth interface is fixed by welding; Alternatively, a portion of the fourth interface extends into the third connecting pipe and the third connecting pipe is fixed by welding.

11. The valve assembly according to claim 9, characterized in that The third connecting pipe is a copper pipe or a stainless steel pipe, and the material of the third connecting pipe is the same as that of the filter housing.

12. The valve assembly according to claim 1, characterized in that The first connecting pipe includes a first section, a second section and a third section which are connected. The first section is connected to the first interface. The first section and the third section are in a spatially vertical relationship. The second section connects the first section and the third section.

13. The valve assembly according to claim 1, characterized in that The valve assembly further includes a fourth connecting pipe, one end of which is welded and fixed to the first connecting pipe, and the fourth connecting pipe is used to connect the first connecting pipe and the reversing valve.

14. The valve assembly according to claim 13, characterized in that A portion of the fourth connecting pipe extends into the first connecting pipe and the first connecting pipe is fixed by welding; Alternatively, a portion of the first connecting pipe extends into the fourth connecting pipe and the fourth connecting pipe is fixed by welding.

15. The valve assembly according to claim 13, characterized in that The fourth connecting pipe is a copper pipe or a stainless steel pipe, and the fourth connecting pipe is made of the same material as the first connecting pipe.

16. The valve assembly according to claim 1, characterized in that The valve assembly comprises a temperature sensing sleeve, which is arranged on the outer wall of the first connecting pipe and is used for installing a temperature sensor.

17. The valve assembly according to claim 9, characterized in that The valve assembly further comprises: A sealing sheet, the sealing sheet being arranged at an end of the third connecting pipe away from the filter; A sealing tube, wherein the inner diameter of the sealing tube is smaller than the inner diameter of the third tube, one end of the sealing tube is fixed to the sealing sheet and communicated with the third tube, and the other end of the sealing tube is a sealed end.

18. The valve assembly according to claim 17, characterized in that The sealing sheet pipe is provided with a structurally weak portion, and the structurally weak portion is provided at one end of the sealing sheet pipe close to the sealing sheet.

19. An air conditioner outdoor unit, characterized in that: include: compressor; A reversing valve connected to the compressor; as well as According to the valve assembly according to any one of claims 1 to 18, the first connecting pipe is connected to the reversing valve.

20. The air conditioner outdoor unit according to claim 19, characterized in that: The air conditioner outdoor unit further comprises a chassis 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.

21. An air conditioner, characterized in that: Including the air conditioner outdoor unit as described in claim 18 or 19.

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