Four-way valve assembly and air conditioner

Abstract

The utility model discloses a four -way valve subassembly and air conditioner, four -way valve subassembly includes: main valve body, the connecting pipe subassembly includes with the multiple connecting pipes of main valve body connection, and multiple connecting pipes include the first connecting pipe, second connecting pipe and third connecting pipe along the axial direction arrangement of main valve body, and the first connecting pipe, second connecting pipe and third connecting pipe are located the same side of the radial direction of main valve body, and the distance of the end face of first connecting pipe, second connecting pipe and third connecting pipe any adjacent two connecting pipes deviating from main valve body to main valve body center axis is different, and the distance difference is 2mm to 6mm. According to the four -way valve subassembly of the utility model, through the distance of the end face of first connecting pipe, second connecting pipe and third connecting pipe any adjacent two connecting pipes deviating from main valve body to main valve body center axis is different, and the distance difference is 2mm to 6mm, effectively avoid the solder flow to adjacent connecting pipe and lead to the welding, guarantee the fluid in -flow connecting pipe to flow through smoothly, improve the reliability and overall performance of four -way valve subassembly.

Description

Technical Field

[0001] This utility model relates to the field of air handling equipment technology, and in particular to a four-way valve assembly and an air conditioner. Background Technology

[0002] The four-way valve assembly in an air conditioner is mainly used to change the flow direction of the refrigerant, thereby switching between cooling and heating modes. Multiple connecting pipes on the main valve body of the four-way valve assembly are connected to the compressor's exhaust port, compressor's return port, indoor heat exchanger, and outdoor heat exchanger via connecting pipes. In existing technology, two closely spaced connecting pipes are prone to weld bridging during the welding process, reducing the reliability of the four-way valve assembly. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a four-way valve assembly that effectively prevents solder from flowing into adjacent pipes and causing weld joints, ensuring smooth flow of fluid through the pipes, and improving the reliability and overall performance of the four-way valve assembly.

[0004] This utility model also proposes an air conditioner, which includes the above-mentioned four-way valve assembly.

[0005] A four-way valve assembly according to an embodiment of the present invention includes: a main valve body; and a connecting pipe assembly, wherein the connecting pipe assembly includes a plurality of connecting pipes connected to the main valve body, the plurality of connecting pipes including a first connecting pipe, a second connecting pipe, and a third connecting pipe arranged along the axial direction of the main valve body, the first connecting pipe, the second connecting pipe, and the third connecting pipe being located on the same side in the radial direction of the main valve body, and any two adjacent connecting pipes among the first connecting pipe, the second connecting pipe, and the third connecting pipe having different distances from the end face away from the main valve body to the central axis of the main valve body, and the distance difference being 2mm to 6mm.

[0006] According to an embodiment of the present invention, the four-way valve assembly includes a pipe assembly comprising multiple pipes connected to the main valve body. The multiple pipes include a first pipe, a second pipe, and a third pipe arranged along the axial direction of the main valve body. The first pipe, the second pipe, and the third pipe are located on the same side in the radial direction of the main valve body. By means that any two adjacent pipes are at different distances from their end faces away from the main valve body to the central axis of the main valve body, with a distance difference of 2mm to 6mm, the welding areas of any two adjacent pipes are not on the same plane. This effectively prevents solder from flowing to adjacent pipes and causing weld joints, ensuring smooth flow of fluid through the pipes, and improving the reliability and overall performance of the four-way valve assembly.

[0007] In some embodiments of this utility model, the second connecting pipe is located between the first connecting pipe and the third connecting pipe. The distance difference between the end face of the first connecting pipe away from the main valve body and the end face of the second connecting pipe away from the main valve body to the central axis of the main valve body is a. The distance difference between the end face of the third connecting pipe away from the main valve body and the end face of the second connecting pipe away from the main valve body to the central axis of the main valve body is b. And a = b.

[0008] In some embodiments of this utility model, the distance from the end face of the second connecting pipe away from the main valve body to the central axis of the main valve body is greater than the distance from the end face of the first connecting pipe away from the main valve body to the central axis of the main valve body.

[0009] In some embodiments of this utility model, the connecting pipe includes: a first pipe body connected to the main valve body; and a first mating section located at the end of the first pipe body away from the main valve body and connected to the first pipe body, wherein the diameter of the first mating section is larger than the diameter of the first pipe body.

[0010] In some embodiments of this utility model, it further includes: a connecting pipe, wherein there are multiple connecting pipes corresponding one-to-one with the connecting pipe, and one end of the connecting pipe in the length direction extends into the corresponding connecting pipe and is welded to the connecting pipe.

[0011] In some embodiments of this utility model, the connecting pipe is made of stainless steel, the connecting tube is made of stainless steel, and / or the connecting pipe and the connecting tube are connected by high-frequency welding.

[0012] In some embodiments of this utility model, the outer wall surface of the connecting pipe extending into the connecting pipe has a groove.

[0013] In some embodiments of this utility model, there are multiple grooves, which extend along the circumferential direction of the connecting pipe, and the multiple grooves are arranged at intervals along the radial direction of the connecting pipe; and / or, there are multiple grooves, which extend along the radial direction of the connecting pipe, and the multiple grooves are arranged at intervals along the circumferential direction of the connecting pipe.

[0014] In some embodiments of this utility model, the connecting pipe includes: a second pipe body; a second mating section, the second mating section being located at one end of the second pipe body near the connecting pipe and connected to the second pipe body, the second mating section extending into the connecting pipe and welded to the connecting pipe, and the diameter of the second mating section being less than or equal to the diameter of the second pipe body.

[0015] In some embodiments of this utility model, the outer wall surface of the connecting pipe has a positioning structure, and the positioning structure abuts against the end face of the connecting pipe opposite to the main valve body.

[0016] In some embodiments of this utility model, the positioning structure is an annular structure extending along the circumferential direction of the connecting pipe; or, the positioning structure includes multiple positioning segments, which are spaced apart along the circumferential direction of the connecting pipe.

[0017] In some embodiments of this utility model, the plurality of connecting pipes further include a fourth connecting pipe, the connection point of the fourth connecting pipe to the main valve body and the connection point of the first connecting pipe to the main valve body are located on opposite sides of the main valve body in the radial direction.

[0018] In some embodiments of this utility model, the four-way valve assembly is made of stainless steel.

[0019] The air conditioner according to an embodiment of the present invention includes the four-way valve assembly described above.

[0020] According to an embodiment of the present invention, an air conditioner is provided with a four-way valve assembly. The pipe assembly includes multiple connecting pipes connected to the main valve body. The multiple connecting pipes include a first connecting pipe, a second connecting pipe, and a third connecting pipe arranged along the axial direction of the main valve body. The first connecting pipe, the second connecting pipe, and the third connecting pipe are located on the same side in the radial direction of the main valve body. By means that the distance from the end face of any two adjacent connecting pipes away from the main valve body to the central axis of the main valve body is different, and the distance difference is 2mm to 6mm, the welding areas of any two adjacent connecting pipes are not on the same plane, which effectively avoids the solder flowing to adjacent connecting pipes and causing welding, ensures the smooth flow of fluid through the connecting pipes, and improves the reliability and overall performance of the air conditioner.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a structural diagram of a four-way valve assembly according to an embodiment of the present utility model, wherein the connecting pipe includes a first pipe body and a first mating section, and the connecting pipe includes a second pipe body and a second mating section;

[0024] Figure 2 yes Figure 1 The front view;

[0025] Figure 3 This is a front view of a four-way valve assembly according to another embodiment of the present invention, wherein the connecting pipe includes a first pipe body and a first mating section;

[0026] Figure 4 This is a front view of a four-way valve assembly according to another embodiment of the present invention, wherein the connecting pipe includes a second pipe body and a second mating section;

[0027] Figure 5 This is a structural diagram of a connecting pipe according to an embodiment of the present utility model, wherein the connecting pipe includes a second pipe body and a second mating section;

[0028] Figure 6 yes Figure 5 The front view;

[0029] Figure 7 yes Figure 5 Enlarged view of point A in the middle;

[0030] Figure 8 This is a structural diagram of the connecting pipe according to another embodiment of the present utility model;

[0031] Figure 9 yes Figure 8 The front view;

[0032] Figure 10 yes Figure 8 Enlarged view of section B in the middle.

[0033] Figure label:

[0034] 100. Four-way valve assembly;

[0035] 1. Main valve body;

[0036] 21. Connecting pipe; 211. First pipe body; 212. First mating section; 22. First connecting pipe; 23. Second connecting pipe; 24. Third connecting pipe; 25. Fourth connecting pipe;

[0037] 3. Connecting pipe; 31. Second pipe body; 32. Second mating part; 321. Groove;

[0038] 5. Pilot valve; 51. End cap assembly;

[0039] 6. Bracket;

[0040] 96. First capillary; 97. Second capillary; 98. Third capillary; 99. Fourth capillary. Detailed Implementation

[0041] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0042] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0043] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0044] The four-way valve assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0045] like Figures 1-4 As shown, the four-way valve assembly 100 according to an embodiment of the present invention includes a main valve body 1 and a connecting pipe assembly 2. The connecting pipe assembly 2 includes a plurality of connecting pipes 21 connected to the main valve body 1. The plurality of connecting pipes 21 include a first connecting pipe 22, a second connecting pipe 23 and a third connecting pipe 24 arranged along the axial direction of the main valve body 1. The first connecting pipe 22, the second connecting pipe 23 and the third connecting pipe 24 are located on the same side in the radial direction of the main valve body 1.

[0046] It is understandable that the first connecting pipe 22, the second connecting pipe 23, and the third connecting pipe 24 are connected to the compressor, the indoor heat exchanger, and the outdoor heat exchanger, respectively. Since the first connecting pipe 22, the second connecting pipe 23, and the third connecting pipe 24 are located on the same side of the radial direction of the main valve body 1 and are arranged along the axial direction of the main valve body 1, along the radial direction of the main valve body 1, the distance from the end face of any two adjacent connecting pipes 21 away from the main valve body 1 to the central axis of the main valve body 1 is different. This ensures that the welding areas of any two adjacent connecting pipes 21 are not on the same plane and are isolated from each other. This effectively avoids the solder flowing to adjacent connecting pipes 21 and causing welding, as well as avoids the risk of accidental adhesion caused by heat concentration, and ensures the smooth flow of fluid through the connecting pipes 21.

[0047] Meanwhile, the distance difference provides a clearer working path for welding tools (such as welding guns), allowing operators to precisely control the weld position and prevent welding material from flowing to adjacent pipes 21 due to insufficient operating space, thereby improving the reliability of the four-way valve assembly 100.

[0048] In addition, the distance from the end face of any two adjacent pipes 21 of the first pipe 22, the second pipe 23 and the third pipe 24 away from the main valve body 1 to the central axis of the main valve body 1 is different along the radial direction of the main valve body 1, rather than along the axial direction of the main valve body 1. Therefore, it is not necessary to increase the size of the four-way valve assembly 100 along the axial direction of the main valve body 1, so that the four-way valve assembly 100 is more compact and the volume is reduced, so that the four-way valve assembly 100 can be suitable for compact equipment installation scenarios.

[0049] Furthermore, the distances from the end faces of any two adjacent pipes 21 of the first pipe 22, second pipe 23, and third pipe 24 away from the central axis of the main valve body 1 are further limited, with a difference of 2mm to 6mm. It is understandable that a distance difference of less than 2mm still carries the risk of welding between adjacent pipes 21, while a distance difference greater than 6mm results in an excessively large radial dimension of the four-way valve assembly 100 in the main valve body 1. Therefore, by limiting the distance difference to 2mm to 6mm, the volume of the four-way valve assembly 100 can be reduced while effectively avoiding welding between adjacent pipes 21.

[0050] It should be noted that the distance difference can be 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm or 6mm.

[0051] According to the four-way valve assembly 100 of this utility model embodiment, the connecting pipe assembly 2 includes a plurality of connecting pipes 21 connected to the main valve body 1. The plurality of connecting pipes 21 include a first connecting pipe 22, a second connecting pipe 23, and a third connecting pipe 24 arranged along the axial direction of the main valve body 1. The first connecting pipe 22, the second connecting pipe 23, and the third connecting pipe 24 are located on the same side in the radial direction of the main valve body 1. By means that the distance from the end face of any two adjacent connecting pipes 21 away from the main valve body 1 to the central axis of the main valve body 1 is different, and the distance difference is 2mm to 6mm, the welding areas of any two adjacent connecting pipes 21 are not on the same plane, which effectively avoids the solder flowing to the adjacent connecting pipes 21 and causing welding, ensures the smooth flow of fluid through the connecting pipes 21, and improves the reliability and overall performance of the four-way valve assembly 100.

[0052] In some embodiments of this utility model, such as Figures 1-4 As shown, the second connector 23 is located between the first connector 22 and the third connector 24. The distance difference between the end face of the first connector 22 away from the main valve body 1 and the end face of the second connector 23 away from the main valve body 1 to the central axis of the main valve body 1 is a. The distance difference between the end face of the third connector 24 away from the main valve body 1 and the end face of the second connector 23 away from the main valve body 1 to the central axis of the main valve body 1 is b, and a = b.

[0053] It is understandable that the distance from the end face of the first connecting pipe 22 away from the main valve body 1 to the central axis of the main valve body 1 is L1, the distance from the end face of the second connecting pipe 23 away from the main valve body 1 to the central axis of the main valve body 1 is L2, and the distance from the end face of the third connecting pipe 24 away from the main valve body 1 to the central axis of the main valve body 1 is L3, where a is the difference between L1 and L2, and b is the difference between L3 and L2.

[0054] Thus, by setting the first connector 22, the second connector 23, and the third connector 24 such that the distances from the end face of any two adjacent connectors 21 away from the main valve body 1 to the central axis of the main valve body 1 are different, the distance from the end face of the first connector 22 away from the main valve body 1 to the central axis of the main valve body 1 is equal to the distance from the end face of the third connector 24 away from the main valve body 1 to the central axis of the main valve body 1. This allows the first connector 22 and the third connector 24 to share the same set of stamping dies or machining tools, reducing die development costs and shortening production die changeover time.

[0055] Meanwhile, when the second pipe 23, located between the first pipe 22 and the third pipe 24, is connected to the compressor's return port, this setting makes it easier for operators to identify the pipe 21 connected to the compressor's return port, reducing rework caused by incorrect installation of the pipe 21 and improving assembly efficiency.

[0056] It should be noted that this application is not limited to this. Alternatively, the distance difference between the end face of the first connecting pipe 22 away from the main valve body 1 and the end face of the second connecting pipe 23 away from the main valve body 1 and the central axis of the main valve body 1 may be a, and the distance difference between the end face of the third connecting pipe 24 away from the main valve body 1 and the end face of the second connecting pipe 23 away from the main valve body 1 and the central axis of the main valve body 1 may be b, and a < b.

[0057] In some embodiments of this utility model, such as Figures 1-4 As shown, the distance from the end face of the second connecting pipe 23 away from the main valve body 1 to the central axis of the main valve body 1 is greater than the distance from the end face of the first connecting pipe 22 away from the main valve body 1 to the central axis of the main valve body 1. It is understood that the second connecting pipe 23, located between the first connecting pipe 22 and the third connecting pipe 24, connects to the compressor's return port, and the second connecting pipe 23 also needs to be connected to the main valve body 1 via the fourth capillary tube 99. Therefore, the greater distance from the end face of the second connecting pipe 23 away from the main valve body 1 to the central axis of the main valve body 1 facilitates the assembly of the fourth capillary tube 99 and reduces assembly difficulty.

[0058] It should be noted that this application is not limited to this. Alternatively, the distance from the end face of the second connecting pipe 23 away from the main valve body 1 to the central axis of the main valve body 1 may be less than the distance from the end face of the first connecting pipe 22 away from the main valve body 1 to the central axis of the main valve body 1.

[0059] In some embodiments of this utility model, such as Figures 1-3 As shown, the connector 21 includes a first pipe body 211 and a first mating section 212. The first pipe body 211 is connected to the main valve body 1, and the first mating section 212 is located at the end of the first pipe body 211 away from the main valve body 1 and is connected to the first pipe body 211. The diameter of the first mating section 212 is larger than the diameter of the first pipe body 211.

[0060] It is understandable that the distances from the end face of any two adjacent connectors 21 (first connector 22, second connector 23, and third connector 24) away from the main valve body 1 to the central axis of the main valve body 1 are different, thereby preventing solder from flowing to adjacent connectors 21 and causing weld joints. Simultaneously, the diameter of the first mating section 212 is larger than the diameter of the first pipe body 211, facilitating the insertion of components connected to the connector 21 into the first mating section 212 for welding connection.

[0061] It should be noted that this application is not limited to this, for example, such as Figure 4 As shown, when the diameter of the connector 21 is larger than the outer diameter of the component connected to the connector 21, the diameter of the connector 21 is the same along the length direction of the connector 21.

[0062] In some embodiments of this utility model, such as Figures 1-4As shown, the four-way valve assembly 100 also includes connecting pipes 3. There are multiple connecting pipes 3 corresponding one-to-one with connecting pipes 21, with one end of the connecting pipe 3 extending into the corresponding connecting pipe 21 and welded to it.

[0063] Understandably, due to the limited length of the connecting pipe 21 connected to the main valve body 1, the connecting pipe 21 is connected to the external component via a connecting pipe 3. That is, one end of the connecting pipe 3 extends into the corresponding connecting pipe 21 and is welded to it, while the other end is connected to the external component. Simultaneously, by extending one end of the connecting pipe 3 into the corresponding connecting pipe 21 and welding it to it, the welding area between the connecting pipe 21 and the connecting pipe 3 is increased, enhancing the welding strength and ensuring smooth fluid flow within the connecting pipe 21 and the connecting pipe 3. This also reduces solder leakage and further prevents solder from flowing to adjacent connecting pipes 21 and causing weld joints, thus improving the performance of the four-way valve assembly 100.

[0064] In addition, by making the distance from the end face of any two adjacent pipes 21 away from the main valve body 1 to the central axis of the main valve body 1 different, the welding areas of any two adjacent pipes 21 are not on the same plane and are isolated from each other. Thus, the welding connection between the pipe 21 and the connecting pipe 3 can be completed in one go, which simplifies the process and reduces the assembly difficulty.

[0065] Furthermore, compared to the existing technology where a copper sleeve is usually used as an intermediate connector when welding the pipe and the connecting pipe, which is a complex welding process, this application extends one end of the connecting pipe 3 into the corresponding pipe 21 along its length and welds it to the pipe 21. This ensures a reliable welding connection between the pipe 21 and the connecting pipe 3 while reducing the welding difficulty.

[0066] Specifically, such as Figures 1-3 As shown, the connector 21 includes a first pipe body 211 and a first mating section 212. The first pipe body 211 is connected to the main valve body 1. The first mating section 212 is located at the end of the first pipe body 211 opposite to the main valve body 1 and is connected to the first pipe body 211. The diameter of the first mating section 212 is larger than the diameter of the first pipe body 211. One end of the connecting pipe 3 extends into the first mating section 212 of the corresponding connector 21 and is welded to the connector 21 to achieve the welded connection between the connector 21 and the connecting pipe 3.

[0067] Or, such as Figure 4 As shown, along the length of the connecting pipe 21, the pipe diameter of the connecting pipe 21 is the same, and the pipe diameter of the connecting pipe 21 is larger than the outer diameter of the connecting pipe 3, so that one end of the connecting pipe 3 in the length direction extends into the first mating section 212 of the corresponding connecting pipe 21 and is welded to the connecting pipe 21, so as to realize the welded connection between the connecting pipe 21 and the connecting pipe 3.

[0068] In some embodiments of this utility model, the connecting pipe 3 and the connecting pipe 21 are welded by high frequency. Thus, high frequency welding can achieve precise fusion of the connecting pipe 21 and the connecting pipe 3 by local rapid heating. It has the characteristics of high heating efficiency, small heat-affected zone, high welding strength and excellent sealing performance, which can significantly improve production efficiency and simplify the process.

[0069] In some embodiments of this utility model, the connecting pipe 21 and the connecting pipe 3 are both made of stainless steel. It is understood that when both the connecting pipe 21 and the connecting pipe 3 are made of stainless steel, the high strength, good corrosion resistance, and low heat transfer characteristics of stainless steel allow for a reduction in the wall thickness of the connecting pipe 21 and the connecting pipe 3, thereby optimizing the internal flow channel design, achieving a smaller volume layout, and adapting to the trend of miniaturization in air conditioners. Furthermore, the identical materials of the connecting pipe 21 and the connecting pipe 3 further ensure the strength of the welded connection and guarantee the sealing strength of the four-way valve assembly 100.

[0070] In some embodiments of this utility model, the four-way valve assembly 100 is made of stainless steel. Therefore, when the four-way valve assembly 100 is made of stainless steel, due to the high strength and good corrosion resistance of stainless steel, the wall thickness of each part of the four-way valve assembly 100 can be reduced, thereby optimizing the internal flow channel design, achieving a smaller volume layout, and adapting to the trend of miniaturization in air conditioners.

[0071] It should be noted that the four-way valve assembly 100 of this application can also be made of copper. Copper material has the characteristics of good ductility, which makes it easy to stamp, bend and weld. The manufacturing process is mature and the production cost is relatively low.

[0072] In some embodiments of this utility model, such as Figures 5-10 As shown, the outer wall surface of the connecting pipe 3 extending into the connecting pipe 21 has a groove 321. Therefore, the groove 321 facilitates the insertion of solder into the groove 321, thereby improving the welding quality between the connecting pipe 3 and the connecting pipe 21, further ensuring smooth fluid flow within the connecting pipe 21 and the connecting pipe 3, reducing solder leakage, and further preventing solder from flowing to adjacent connecting pipes 21 and causing weld joints, thus improving the performance of the four-way valve assembly 100.

[0073] In some embodiments of this utility model, such as Figures 5-10 As shown, there are multiple grooves 321, which extend along the circumferential direction of the connecting pipe 3 and are spaced apart along the radial direction of the connecting pipe 3. This arrangement allows the solder to penetrate into the multiple grooves 321. Furthermore, the circumferential extension of the grooves 321 and their spaced arrangement along the radial direction of the connecting pipe 3 reduces local stress concentration and further improves the welding quality between the connecting pipe 3 and the connecting pipe 21.

[0074] In some embodiments of this utility model, there are multiple grooves 321, which extend radially along the connecting pipe 3 and are spaced apart along the circumferential direction of the connecting pipe 3. This arrangement, where the grooves 321 extend radially along the connecting pipe 3 and are spaced apart along the circumferential direction of the connecting pipe 3, reduces local stress concentration and further improves the welding quality between the connecting pipe 3 and the connecting pipe 21.

[0075] In some embodiments of this utility model, such as Figures 5-7 As shown, the connecting pipe 3 includes a second pipe body 31 and a second mating section. The second mating section is located at the end of the second pipe body 31 near the connecting pipe 21 and is connected to the second pipe body 31. The second mating section extends into the connecting pipe 21 and is welded to the connecting pipe 21. The diameter of the second mating section is less than or equal to the diameter of the second pipe body 31.

[0076] Thus, by extending the second mating section into the pipe 21 and welding it to the pipe 21, the connection between the connecting pipe 3 and the pipe 21 is achieved. At the same time, by ensuring that the diameter of the second mating section is less than or equal to the diameter of the second pipe body 31, the length of the connecting pipe 3 extending into the pipe 21 can be controlled, thereby improving the reliability of the connection and reducing the assembly difficulty.

[0077] Furthermore, the diameter of the second pipe body 31 is larger than that of the connecting pipe 21. Thus, during the process of the second mating section extending into the connecting pipe 21, the relative position of the connecting pipe 21 and the connecting pipe 3 is further controlled by the contact between the connecting pipe 21 and the second pipe body 31, thereby controlling the length of the connecting pipe 3 extending into the connecting pipe 21.

[0078] It should be noted that this application is not limited to this, for example, such as Figures 8-10 As shown, when the outer diameter of the connecting pipe 3 is smaller than the diameter of the connecting pipe 21, the outer diameter of the connecting pipe 3 is the same along the length direction of the connecting pipe 3.

[0079] In some embodiments of this utility model, the outer wall surface of the connecting pipe 3 has a positioning structure (not shown in the figure), which abuts against the end face of the connecting pipe 3 opposite to the main valve body 1. Thus, by abutting the end face of the connecting pipe 3 opposite to the main valve body 1 with the positioning structure, the length of the connecting pipe 3 extending into the connecting pipe 21 is controlled, thereby improving the reliability of the connection between the two and reducing the assembly difficulty.

[0080] In some embodiments of this utility model, the positioning structure is an annular shape extending along the circumferential direction of the connecting pipe 3. It is understood that the annular positioning structure simplifies the processing and assembly of the connecting pipe 3, eliminating the need for alignment or fixing of multiple segments and improving efficiency; alternatively, the positioning structure includes multiple positioning segments spaced apart along the circumferential direction of the connecting pipe 3. It is understood that the positioning structure formed by multiple positioning segments can reduce material usage, thereby reducing the weight and cost of the four-way valve assembly 100. Therefore, different forms of positioning structures can be selected according to different needs, improving the versatility of the four-way valve assembly 100 of this application to adapt to different models of air conditioners.

[0081] In some embodiments of this utility model, such as Figures 1-4 As shown, the multiple connecting pipes 21 also include a fourth connecting pipe 25. The connection points of the fourth connecting pipe 25 and the main valve body 1, and the connection points of the first connecting pipe 22 and the main valve body 1, are located on opposite sides of the main valve body 1 in the radial direction. It can be understood that the fourth connecting pipe 25 is connected to the compressor's exhaust port. The compressor compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant enters the fourth connecting pipe 25 through the compressor's exhaust port and flows into the main valve body 1 through the fourth connecting pipe 25. The main valve body 1 then directs the refrigerant to the corresponding second connecting pipe 23, third connecting pipe 24, or first connecting pipe 22 as needed. Thus, along the radial direction of the main valve body 1, the connections of the first connecting pipe 22, the second connecting pipe 23, and the third connecting pipe 24, as well as the connections of the fourth connecting pipe 25 and the first connecting pipe 22, are located on opposite sides, optimizing the layout of the four-way valve assembly 100, facilitating refrigerant flow, and improving the overall reliability of the four-way valve assembly 100.

[0082] In some embodiments, such as Figure 1 As shown, the four-way valve assembly 100 also includes a pilot valve 5 and a bracket 6. The bracket 6 is connected to the main valve body 1 and is used to fix the pilot valve 5. The pilot valve 5 includes a pilot valve body and an end cap assembly 51. The pilot valve body has a cavity and an inlet, with the inlet communicating with the cavity. The end cap body is located at the inlet, and a connecting hole extends through the end cap body along its thickness direction. A filter element is located on one side of the end cap body along its thickness direction, and the filter element has multiple spaced filter holes. The filter element is located within the cavity and can seal the inlet through the end cap body, fulfilling the sealing requirements of the pilot valve 5. Furthermore, the filter element can filter the medium entering from the inlet, reducing impurities in the medium and preventing damage to the internal structure of the pilot valve 5, thus ensuring the normal operation of the pilot valve 5.

[0083] As shown in Figure 1-2, the four-way valve assembly 100 also includes a first capillary tube 96, a second capillary tube 97, a third capillary tube 98, and a fourth capillary tube 99. One end of the first capillary tube 96 passes through a connection hole and is located on the side of the filter element near the end cap body. The other end of the first capillary tube 96 connects to the fourth connecting pipe 25, enabling communication between the first capillary tube 96 and the pilot valve 5, thereby connecting the pilot valve 5 and the main valve body 1. The filter element also filters the medium flowing out from the first capillary tube 96. One end of the second capillary tube 97 connects to the first connection port, and the other end of the second capillary tube 97 connects to the first port. One end of the third capillary tube 98 connects to the second connection port, and the other end of the fourth capillary tube 99 connects to the third connection port, and the other end of the fourth capillary tube 99 connects to the second connecting pipe 23, fulfilling the required connection requirements.

[0084] Specifically, when the four-way valve assembly 100 is applied to an air conditioner, the end of the first connecting pipe 22 away from the main valve body 1 is connected to the return port of the compressor, the end of the fourth connecting pipe 25 away from the main valve body 1 is connected to the exhaust port of the compressor, the end of the third connecting pipe 24 away from the main valve body 1 is connected to the indoor heat exchanger, and the end of the first connecting pipe 22 away from the main valve body 1 is connected to the outdoor heat exchanger.

[0085] When the air conditioning system is in cooling mode, pilot valve 5 controls the connection between the fourth connecting pipe 25 and the first connecting pipe 22, and between the second connecting pipe 23 and the third connecting pipe 24. The compressor compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant flows into the fourth connecting pipe 25 through the compressor's exhaust port, then enters the main valve body 1, and finally flows into the first connecting pipe 22 and towards the outdoor heat exchanger. The outdoor heat exchanger exchanges heat with the external environment, condensing and dissipating heat. The refrigerant flows within the outdoor heat exchanger, releasing heat to the external environment, thus changing from a gaseous state to a liquid state. The high-pressure liquid refrigerant flowing from the outdoor heat exchanger then flows towards the throttling device, which reduces the refrigerant pressure, allowing the low-pressure liquid refrigerant to flow into the indoor heat exchanger. The indoor heat exchanger absorbs heat; the refrigerant vaporizes within it, changing from a liquid to a gaseous state, thus carrying away the heat from the airflow passing over its surface. The low-temperature airflow is then delivered into the room by the indoor unit to achieve cooling. Meanwhile, the low-pressure gaseous refrigerant enters the main cavity of the main valve body 1 through the third connector 24, and finally flows to the return gas opening of the compressor through the second connector 23 to return to the compressor for compression again, thus forming a refrigerant cycle and achieving the cooling effect of the air conditioning system.

[0086] Similarly, when the air conditioning system is in heating mode, the pilot valve 5 controls the connection between the fourth connecting pipe 25 and the third connecting pipe 24, and between the second connecting pipe 23 and the first connecting pipe 22. As a result, the compressor compresses the refrigerant into a high-temperature, high-pressure gas. The high-pressure gaseous refrigerant flows into the fourth connecting pipe 25 through the compressor's exhaust port, and then enters the main valve body 1. From the main valve body 1, the refrigerant flows through the third connecting pipe 24 to the indoor heat exchanger. The indoor heat exchanger exchanges heat with the airflow flowing across its surface. The airflow absorbs heat, and the refrigerant condenses and dissipates heat. The high-temperature airflow is then delivered into the room by the indoor unit to achieve heating. The refrigerant flows within the indoor heat exchanger and releases heat into the indoor environment, thus changing from a gaseous state to a liquid state. The high-pressure liquid refrigerant flowing from the indoor heat exchanger then flows to the throttling device, which reduces the refrigerant pressure, allowing the low-pressure liquid refrigerant to flow into the outdoor heat exchanger. The outdoor heat exchanger absorbs heat. The refrigerant absorbs heat and vaporizes inside the outdoor heat exchanger, changing from a liquid to a gaseous state. This carries away the heat flowing through the outdoor environment. The low-pressure gaseous refrigerant flows to the first pipe 22 and enters the main valve body 1. From the main valve body 1, it flows through the second pipe 23 to the return gas opening of the compressor to return to the compressor for compression again. This forms a refrigerant cycle and achieves the heating effect of the air conditioning system.

[0087] An air conditioner according to an embodiment of the present invention includes a four-way valve assembly 100.

[0088] According to an embodiment of the present invention, an air conditioner is provided with a four-way valve assembly 100. The pipe assembly includes multiple connecting pipes 21 connected to the main valve body 1. The multiple connecting pipes 21 include a first connecting pipe 22, a second connecting pipe 23, and a third connecting pipe 24 arranged along the axial direction of the main valve body 1. The first connecting pipe 22, the second connecting pipe 23, and the third connecting pipe 24 are located on the same side in the radial direction of the main valve body 1. By means that the distance from the end face of any two adjacent connecting pipes 21 away from the main valve body 1 to the central axis of the main valve body 1 is different, and the distance difference is 2mm to 6mm, the welding areas of any two adjacent connecting pipes 21 are not on the same plane, which effectively avoids the solder flowing to the adjacent connecting pipes 21 and causing welding, ensures the smooth flow of fluid through the connecting pipes 21, and improves the reliability and overall performance of the air conditioner.

[0089] Other components and operations of the air conditioner according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0090] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0091] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A four-way valve assembly, characterized in that, include: Main valve body; The pipe assembly includes multiple pipes connected to the main valve body. The multiple pipes include a first pipe, a second pipe, and a third pipe arranged along the axial direction of the main valve body. The first pipe, the second pipe, and the third pipe are located on the same side in the radial direction of the main valve body. The distance from the end face of any two adjacent pipes away from the main valve body to the central axis of the main valve body is different, and the distance difference is 2mm to 6mm.

2. The four-way valve assembly according to claim 1, characterized in that, The second connector is located between the first connector and the third connector. The distance difference between the end face of the first connector away from the main valve body and the end face of the second connector away from the main valve body to the central axis of the main valve body is a. The distance difference between the end face of the third connector away from the main valve body and the end face of the second connector away from the main valve body to the central axis of the main valve body is b. And a = b.

3. The four-way valve assembly according to claim 1 or 2, characterized in that, The distance from the end face of the second connecting pipe away from the main valve body to the central axis of the main valve body is greater than the distance from the end face of the first connecting pipe away from the main valve body to the central axis of the main valve body.

4. The four-way valve assembly according to claim 1, characterized in that, The takeover includes: The first pipe body is connected to the main valve body; The first mating section is located at the end of the first pipe body away from the main valve body and is connected to the first pipe body. The diameter of the first mating section is larger than the diameter of the first pipe body.

5. The four-way valve assembly according to claim 1, characterized in that, Also includes: The connecting pipe consists of multiple pipes that correspond one-to-one with the connecting tube. One end of the connecting pipe extends into the corresponding connecting tube and is welded to the connecting tube.

6. The four-way valve assembly according to claim 5, characterized in that, The connecting pipe is made of stainless steel; and / or, The nozzle and the connecting pipe are connected by high-frequency welding.

7. The four-way valve assembly according to claim 5, characterized in that, The outer wall surface of the connecting pipe that extends into the connecting pipe has a groove.

8. The four-way valve assembly according to claim 7, characterized in that, There are multiple grooves, which extend along the circumferential direction of the connecting pipe and are arranged at intervals along the radial direction of the connecting pipe. And / or, there are multiple grooves, the grooves extend along the radial direction of the connecting pipe, and the multiple grooves are arranged at intervals along the circumferential direction of the connecting pipe.

9. The four-way valve assembly according to claim 5, characterized in that, The connecting pipe includes: Second tube body; The second fitting section is located at one end of the second pipe body near the connecting pipe and is connected to the second pipe body. The second fitting section extends into the connecting pipe and is welded to the connecting pipe. The diameter of the second fitting section is less than or equal to the diameter of the second pipe body.

10. The four-way valve assembly according to claim 5, characterized in that, The outer wall of the connecting pipe has a positioning structure, which abuts against the end face of the connecting pipe opposite to the main valve body.

11. The four-way valve assembly according to claim 10, characterized in that, The positioning structure is an annular structure extending along the circumferential direction of the connecting pipe; Alternatively, the positioning structure may include multiple positioning segments, which are spaced apart along the circumferential direction of the connecting pipe.

12. The four-way valve assembly according to claim 1, characterized in that, The plurality of connecting pipes also includes a fourth connecting pipe, the connection point of the fourth connecting pipe to the main valve body and the connection point of the first connecting pipe to the main valve body are located on opposite sides of the main valve body in the radial direction.

13. The four-way valve assembly according to claim 1, characterized in that, The four-way valve assembly is made of stainless steel.

14. An air conditioner, characterized in that, Includes the four-way valve assembly according to any one of claims 1-13.

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