Valve assembly and air conditioner having the same

Abstract

The utility model discloses a valve assembly and air conditioner with it, valve assembly includes: valve island, the first flow passage is formed in the valve island, and the valve island has the opening in communication with the first flow passage, functional component, functional component is detachably arranged at the opening, and the sealing ring is arranged between functional component and the valve island, one of valve island and functional component has the convex part, and the other of valve island and functional component is in contact with the convex part, and the convex part is annular along the circumferential direction of the opening. According to the valve assembly of the utility model, through the sealing ring between functional component and the valve island, one of valve island and functional component has the convex part, the other of valve island and functional component is in contact with the convex part, and the convex part is annular along the circumferential direction of the opening, can guarantee the sealing reliability between functional component and the valve island through double sealing, avoid valve assembly leakage, guarantee the reliability and stability of valve assembly, reduce the maintenance frequency of valve assembly, prolong the service life of valve assembly.

Description

Technical Field

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

[0002] To achieve miniaturization and centralization of air conditioners, valve bodies such as electronic expansion valves and four-way valves are usually integrated into modular components. As the air conditioner operates for a long time, the sealing performance at the connection between the valve body and the modular component gradually declines, posing a risk of leakage. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a valve assembly that ensures the sealing reliability between the functional components and the valve island through double sealing, avoids valve assembly leakage, ensures the reliability and stability of the valve assembly, reduces the maintenance frequency of the valve assembly, and extends the service life of the valve assembly.

[0004] This utility model also proposes an air conditioner, which includes the valve assembly described above.

[0005] The valve assembly according to an embodiment of the present invention includes: a valve island, wherein a first flow channel is formed therein, and the valve island has an opening communicating with the first flow channel; a functional component, wherein the functional component is detachably disposed at the opening, and a sealing ring is provided between the functional component and the valve island, wherein one of the valve island and the functional component has a protrusion, and the other of the valve island and the functional component abuts against the protrusion, and the protrusion extends in an annular shape along the circumferential direction of the opening.

[0006] According to the valve assembly of this utility model embodiment, by detachably arranging the functional component at the opening of the valve island, and providing a sealing ring between the functional component and the valve island, a soft seal can be formed between the functional component and the valve island, effectively preventing refrigerant from flowing out from the gap between the functional component and the valve island, and preventing external dust and other impurities from entering the valve island or the interior of the functional component. One of the valve island and the functional component has a protrusion, and the other of the valve island and the functional component abuts against the protrusion. The protrusion extends in a ring shape along the circumferential direction of the opening. Once the sealing ring fails, the protrusion, in conjunction with the other of the valve island and the functional component without a protrusion, can retain the permeated refrigerant in the sealed space. Thus, the double sealing ensures the sealing reliability between the functional component and the valve island, avoids valve assembly leakage, ensures the reliability and stability of the valve assembly, reduces the maintenance frequency of the valve assembly, and extends the service life of the valve assembly.

[0007] In addition, the valve assembly according to this utility model may also have the following additional technical features:

[0008] In some embodiments, one of the valve island and the functional component that does not have the protrusion contacts the protrusion to form a seal.

[0009] In some embodiments, the functional component includes a body portion and a connecting portion, the connecting portion being located on the side of the body portion facing the valve island, and the connecting portion extending into the opening.

[0010] In some embodiments, the protrusion is provided on the outside of the valve island, and the protrusion is provided on one of the outer wall surface of the valve island and the body portion. The protrusion surrounds the opening, and the outer wall surface of the valve island and the other of the body portions abut against the protrusion.

[0011] In some embodiments, the sealing ring is disposed between the outer peripheral wall of the connecting portion and the inner peripheral wall of the opening, and both the outer peripheral wall of the connecting portion and the inner peripheral wall of the opening abut against the sealing ring.

[0012] In some embodiments, the opening includes a first segment and a second segment arranged and connected along the axial direction of the opening. The first segment is located outside the second segment, and the diameter of the first segment is larger than the diameter of the second segment. The connecting portion passes through both the first segment and the second segment. The sealing ring is disposed between the outer peripheral wall of the connecting portion and the inner peripheral wall of the first segment, and both axial ends of the sealing ring abut against the inner bottom wall of the first segment and the body portion, respectively. Alternatively, the connecting portion includes a first segment and a second segment arranged and connected along the axial direction of the connecting portion. The first segment is located between the second segment and the body portion. The first segment is located within the first segment, and the second segment passes through both the first segment and the second segment. The sealing ring is disposed between the outer peripheral wall of the second segment and the inner peripheral wall of the first segment, and one axial end of the sealing ring abuts against the end of the first segment opposite to the body portion, and the other end abuts against the inner bottom wall of the first segment.

[0013] In some embodiments, the valve island includes a valve seat portion and a connecting pipe, the first flow channel is formed in the valve seat portion, the opening is formed on the connecting pipe and communicates with the first flow channel, at least a portion of the connecting pipe is located outside the valve seat portion, and the connecting portion passes through the connecting pipe.

[0014] In some embodiments, the protrusion is provided on the outer peripheral wall of the connecting portion, and the protrusion abuts against the end face of the connecting pipe opposite to the valve seat portion.

[0015] In some embodiments, in the radially inward direction of the connecting pipe, the end face of the connecting pipe facing away from the valve seat is inclined in a direction away from the valve seat, or the end face of the connecting pipe facing away from the valve seat is inclined in a direction close to the valve seat.

[0016] In some embodiments, the functional component further includes a fixing member disposed on the connecting portion, and at least a portion of the fixing member is located on the side of the protrusion opposite to the valve island, the fixing member being detachably connected to the connecting pipe.

[0017] In some embodiments, the fastener is sleeved on the connecting portion, and the fastener includes an installation section and a fixing section arranged and connected along the axial direction of the connecting portion. The installation section is located on the side of the protrusion away from the valve island, and the fixing section surrounds the connecting pipe and is threadedly connected to the connecting pipe.

[0018] In some embodiments, the connecting pipe is welded to the valve seat portion; or, the connecting pipe and the valve seat portion are an integral part.

[0019] In some embodiments, the sealing ring is disposed between the outer peripheral wall of the connecting portion and the inner peripheral wall of the connecting pipe, and both the outer peripheral wall of the connecting portion and the inner peripheral wall of the connecting pipe abut against the sealing ring.

[0020] In some embodiments, the opening has a groove at one end facing the body portion, the connecting portion is disposed in the groove, and the end of the connecting portion opposite to the body portion abuts against the inner bottom wall of the groove.

[0021] In some embodiments, the inner bottom wall of the groove includes a first wall surface and a second wall surface arranged in the radial direction of the opening. The first wall surface is connected between the second wall surface and the inner peripheral wall of the groove. In the direction from the body portion to the valve island, the first wall surface is inclined toward the axial direction of the opening. The end of the connecting portion opposite to the body portion has the protrusion, which abuts against the first wall surface.

[0022] In some embodiments, the end of the connecting portion away from the body portion includes a third wall surface and a fourth wall surface arranged in the radial direction of the connecting portion. The third wall surface connects the fourth wall surface and the outer peripheral wall of the connecting portion. In the direction from the body portion to the valve island, the third wall surface is inclined toward the axial direction of the connecting portion. The protrusion is formed between the third wall surface and the fourth wall surface, or the protrusion is formed between the third wall surface and the outer peripheral wall of the connecting portion.

[0023] In some embodiments, the sealing ring is disposed between the outer peripheral wall of the connecting portion and the inner peripheral wall of the groove, and both the outer peripheral wall of the connecting portion and the inner peripheral wall of the groove abut against the sealing ring.

[0024] In some embodiments, the sealing rings are a plurality of rings spaced apart along the axial direction of the connection portion.

[0025] In some embodiments, the connecting portion is threadedly connected to the valve island.

[0026] In some embodiments, the functional component is connected to the valve island by fasteners.

[0027] In some embodiments, the openings are a plurality of spaced-apart openings, and the functional components are a plurality of openings corresponding one-to-one with the plurality of openings.

[0028] In some embodiments, the functional component is at least one of a valve, a pipe, a heat exchanger, or a compressor.

[0029] This utility model also provides an air conditioner having the above-described embodiments.

[0030] According to the embodiment of this utility model, the air conditioner, by providing the aforementioned valve assembly, and by detachably placing the functional component at the opening of the valve island, and providing a sealing ring between the functional component and the valve island, a soft seal can be formed between the functional component and the valve island, effectively preventing refrigerant from flowing out from the gap between the functional component and the valve island, and preventing external dust and other impurities from entering the valve island or the interior of the functional component. One of the valve island and the functional component has a protrusion, and the other of the valve island and the functional component abuts against the protrusion. The protrusion extends in a ring shape along the circumferential direction of the opening. Once the sealing ring fails, the protrusion, in conjunction with the other of the valve island and the functional component without a protrusion, can retain the permeated refrigerant in the sealed space. Thus, the double sealing ensures the sealing reliability between the functional component and the valve island, avoids valve assembly leakage, ensures the reliability and stability of the valve assembly, reduces the maintenance frequency of the valve assembly, and extends the service life of the valve assembly.

[0031] 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

[0032] 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:

[0033] Figure 1 This is a partial cross-sectional view of the valve assembly according to the first embodiment of the present utility model;

[0034] Figure 2 This is a partial cross-sectional view of the valve assembly according to the second embodiment of the present utility model;

[0035] Figure 3 This is a partial cross-sectional view of the valve assembly according to the third embodiment of the present utility model;

[0036] Figure 4 This is a partial cross-sectional view of the valve assembly according to the fourth embodiment of the present utility model;

[0037] Figure 5 This is a partial cross-sectional view of the valve assembly according to the fifth embodiment of the present utility model;

[0038] Figure 6 This is a partial cross-sectional view of the valve assembly according to the sixth embodiment of the present invention;

[0039] Figure 7 This is a partial cross-sectional view of the valve assembly according to the seventh embodiment of the present utility model;

[0040] Figure 8 This is a partial cross-sectional view of the valve assembly according to the eighth embodiment of the present utility model;

[0041] Figure 9 yes Figure 8 Enlarged view of point A in the middle;

[0042] Figure 10 This is a partial cross-sectional view of the valve assembly according to the ninth embodiment of the present utility model;

[0043] Figure 11 This is a partial cross-sectional view of the valve assembly according to the tenth embodiment of the present utility model;

[0044] Figure 12 This is a partial cross-sectional view of the valve assembly according to the eleventh embodiment of the present invention;

[0045] Figure 13 yes Figure 12 Enlarged view of point B in the middle;

[0046] Figure 14 This is a perspective view of a portion of the valve assembly according to an embodiment of the present utility model;

[0047] Figure 15 This is an exploded view of a portion of the valve assembly according to an embodiment of the present utility model;

[0048] Figure 16 This is a perspective view of the valve assembly according to an embodiment of the present utility model;

[0049] Figure 17 This is an exploded view of the valve assembly according to an embodiment of the present utility model.

[0050] Figure label:

[0051] 100. Valve assembly;

[0052] 1. Valve island; 10. First flow channel; 11. Opening; 111. First orifice section; 112. Second orifice section; 113. Groove; 114. First wall surface; 115. Second wall surface; 12. Connecting pipe; 13. Valve seat;

[0053] 2. Functional components; 20. Second flow channel; 21. Main body; 22. Connecting part; 221. First section; 222. Second section; 223. Third wall surface; 224. Fourth wall surface; 23. Fastener; 231. Mounting section; 232. Fixing section;

[0054] 3. Sealing ring;

[0055] 4. Protruding part;

[0056] 5. Fasteners;

[0057] 61. Electronic expansion valve; 62. Four-way valve; 63. Connecting pipe; 64. Heat exchanger; 65. Gas-liquid separator. Detailed Implementation

[0058] The embodiments of this utility model are described in detail below. Examples of the 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.

[0059] 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", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0061] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0062] The valve assembly 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0063] like Figure 1 As shown, the valve assembly 100 according to an embodiment of the present invention includes a valve island 1 and a functional component 2.

[0064] Specifically, see the attached document. Figure 1 As shown, a first flow channel 10 is formed inside the valve island 1. The valve island 1 has an opening 11 that communicates with the first flow channel 10. The functional component 2 is detachably disposed at the opening 11. The functional component 2 has a second flow channel 20. After the functional component 2 is assembled to the opening 11 of the valve island 1, the second flow channel 20 can communicate with the first flow channel 10 through the opening 11, thereby realizing the transfer of refrigerant in the second flow channel 20 to the first flow channel 10, or the transfer of refrigerant in the first flow channel 10 to the first flow channel 10.

[0065] Understandably, the detachable connection between functional component 2 and valve island 1 reduces the assembly and disassembly difficulty of valve assembly 100, improves the assembly and maintenance efficiency of valve assembly 100, reduces the maintenance cost of valve assembly 100, and when one of valve island 1 and functional component 2 is damaged, only the damaged part can be repaired or replaced, while the undamaged parts do not need to be repaired or replaced and can continue to be used, thereby relatively reducing the maintenance cost of valve assembly 100 and extending the service life of valve assembly 100.

[0066] Further, see Appendix Figure 1As shown, a sealing ring 3 is provided between functional component 2 and valve island 1. The sealing ring 3 has good flexibility and elasticity, and can fit tightly between functional component 2 and valve island 1 under pressure, filling the tiny gap between functional component 2 and valve island 1, forming a soft seal between functional component 2 and valve island 1. This effectively prevents refrigerant from flowing out from the gap between functional component 2 and valve island 1, and also prevents external dust and other impurities from entering the valve island 1 or the interior of functional component 2, reducing the probability of blockage in opening 11, first flow channel 10 and second flow channel 20, and ensuring normal flow of refrigerant in opening 11, first flow channel 10 and second flow channel 20. It should be noted that since the sealing ring 3 achieves sealing through its own deformation, the requirements for the machining accuracy and installation of the sealing surfaces of functional component 2 and valve island 1 are relatively low. It can better adapt to machining errors and installation deviations, ensuring good sealing performance between functional component 2 and valve island 1.

[0067] Furthermore, see the attached document. Figure 1 As shown, one of the valve island 1 and the functional component 2 has a protrusion 4, and the other valve island 1 and functional component 2 abuts against the protrusion 4. The protrusion 4 extends in a ring shape along the circumferential direction of the opening 11, forming a hard seal between the protrusion 4 and the valve island 1 and functional component 2 without the protrusion 4. The protrusion 4 has high strength and hardness, which can resist the erosion and wear of the refrigerant, extend the service life of the protrusion 4, and improve the sealing reliability between the protrusion 4 and the valve island 1 and functional component 2 without the protrusion 4. It can be understood that when the refrigerant permeates into the gap between the valve island 1 and the functional component 2, the abutment between the protrusion 4 and the valve island 1 and functional component 2 without the protrusion 4 can define a sealing space between the protrusion 4 and the valve island 1 and functional component 2 without the protrusion 4, so that the refrigerant remains in the sealing space and prevents the refrigerant from leaking out of the valve assembly 100.

[0068] It is understandable that by providing a sealing ring 3 between the functional component 2 and the valve island 1, a soft seal can be formed between the functional component 2 and the valve island 1, effectively preventing refrigerant from flowing out from the gap between the functional component 2 and the valve island 1, and preventing external dust and other impurities from entering the valve island 1 or the interior of the functional component 2. After the valve assembly 100 has been used for a long time, once the seal of the sealing ring 3 fails, the refrigerant will gradually penetrate into the gap between the valve island 1 and the functional component 2, eventually filling the sealed space defined between the protrusion 4 and the valve island 1 and the functional component 2 without the protrusion 4. This allows the refrigerant to remain in the sealed space, thereby ensuring the sealing reliability between the functional component 2 and the valve island 1 through double sealing, avoiding leakage of the valve assembly 100, ensuring the reliability and stability of the valve assembly 100, reducing the maintenance frequency of the valve assembly 100, and extending the service life of the valve assembly 100.

[0069] It should be noted that one of the valve island 1 and the functional component 2 has a protrusion 4, and the other of the valve island 1 and the functional component 2 abuts against the protrusion 4. It can be that the valve island 1 has a protrusion 4 and the functional component 2 abuts against the protrusion 4, or it can be that the functional component 2 has a protrusion 4 and the valve island 1 abuts against the protrusion 4.

[0070] According to the embodiment of the present invention, the valve assembly 100, by detachably assembling the functional component 2 at the opening 11 of the valve island 1, and providing a sealing ring 3 between the functional component 2 and the valve island 1, a soft seal can be formed between the functional component 2 and the valve island 1, effectively preventing refrigerant from flowing out from the gap between the functional component 2 and the valve island 1, and preventing external dust and other impurities from entering the valve island 1 or the interior of the functional component 2. One of the valve island 1 and the functional component 2 has a protrusion 4, and the other of the valve island 1 and the functional component 2 abuts against the protrusion 4. The protrusion 4 extends in a ring shape along the circumferential direction of the opening 11. Once the sealing ring 3 fails, the protrusion 4, in conjunction with the one of the valve island 1 and the functional component 2 that does not have a protrusion 4, can retain the permeated refrigerant in the sealed space. Thus, the double sealing can ensure the sealing reliability between the functional component 2 and the valve island 1, avoid leakage of the valve assembly 100, ensure the reliability and stability of the valve assembly 100, reduce the maintenance frequency of the valve assembly 100, and extend the service life of the valve assembly 100.

[0071] In some embodiments of this utility model, reference is made to the appendix. Figure 1 As shown, one of the valve island 1 and the functional component 2 without the protrusion 4 contacts the protrusion 4 to form a seal. The line seal contact method can more accurately fit the sealing surface, effectively fill the small gaps, reduce the risk of refrigerant leakage, and ensure the reliability of the valve assembly 100.

[0072] It should be noted that, compared to surface sealing, having one of the valve island 1 and functional component 2 without a protrusion 4 form a line seal with the protrusion 4 can reduce the processing difficulty of valve island 1 and functional component 2, reduce the sealing difficulty between the two protrusions, improve the tightness between them, enhance the sealing performance, ensure the accuracy of the seal between valve island 1 and functional component 2, reduce the possibility of leakage in valve assembly 100, improve the reliability and stability of valve assembly 100, reduce the maintenance frequency of valve assembly 100, and extend the service life of valve assembly 100. For example, the cross-sectional shape of the protrusion 4 can be semi-circular, fan-shaped, triangular, or other shapes that can form a line seal.

[0073] In some embodiments of this utility model, reference is made to the appendix. Figure 1As shown, functional component 2 includes a body portion 21 and a connecting portion 22. The connecting portion 22 is located on the side of the body portion 21 facing the valve island 1. The connecting portion 22 extends into the opening 11 in a direction perpendicular to the axis of the opening 11 (see attached diagram). Figure 1 In the cross-section of the c-direction shown, the cross-sectional area of ​​the connecting part 22 is smaller than that of the body part 21. By extending the connecting part 22 into the opening 11, the aperture of the opening 11 can be relatively reduced, thereby reducing the difficulty of fitting the functional component 2 with the valve island 1. This avoids affecting the flow channel and the arrangement of the opening 11 in the valve island 1 due to the excessively large aperture of the opening 11, thus relatively reducing the space occupied by the valve island 1 and reducing the volume of the valve assembly 100.

[0074] In a further embodiment of this utility model, reference is made to the appendix. Figure 1 As shown, the protrusion 4 is provided on the outside of the valve island 1. The outer wall surface of the valve island 1 and one of the main body 21 are provided with the protrusion 4. The protrusion 4 surrounds the opening 11. The outer wall surface of the valve island 1 and the other of the main body 21 abut against the protrusion 4. By providing the protrusion 4 on the outside of the valve island 1, whether the protrusion 4 is provided on the outer wall surface of the valve island 1 or on the main body 21, the processing difficulty of the protrusion 4 can be reduced, thereby facilitating the processing of the valve island 1 or the functional component 2.

[0075] Further, see Appendix Figure 1 As shown, the protrusion 4 surrounds the opening 11, and a sealed space is formed between the protrusion 4 and the outer wall surface of the valve island 1 and one of the body parts 21 where the protrusion 4 is not provided. When the refrigerant leaks from between the inner peripheral wall of the opening 11 and the outer peripheral wall of the connecting part 22, the leaked refrigerant is kept in the sealed space, preventing the refrigerant from leaking to areas other than the protrusion 4, reducing the probability of valve assembly 100 leakage, ensuring the reliability and stability of valve assembly 100, reducing the maintenance frequency of valve assembly 100, and extending the service life of valve assembly 100.

[0076] It is understandable that the protrusion 4 may be provided on the outer wall surface of the valve island 1, and the protrusion 4 abuts against the side wall surface of the main body 21 facing the valve island 1; or the protrusion 4 may be provided on the side wall surface of the main body 21 facing the valve island 1, and the protrusion 4 abuts against the outer wall surface of the valve island 1.

[0077] In a further embodiment of this utility model, reference is made to the appendix. Figure 1As shown, the sealing ring 3 is disposed between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the opening 11. Both the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the opening 11 abut against the sealing ring 3. The sealing ring 3 extends along the circumferential direction of the connecting part 22 and can be used to seal the gap between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the opening 11, preventing refrigerant from flowing out from the gap between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the opening 11. It can also prevent external dust and other impurities from entering the valve island 1 or the functional component 2 from the gap between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the opening 11, reducing the probability of blockage in the opening 11, the first flow channel 10 and the second flow channel 20, and ensuring the normal flow of refrigerant in the opening 11, the first flow channel 10 and the second flow channel 20.

[0078] In a further embodiment of this utility model, reference is made to the appendix. Figure 1 As shown, opening 11 includes a portion along the axial direction of opening 11 (see attached diagram). Figure 1 The first hole segment 111 and the second hole segment 112 are arranged and connected in the direction c shown. The first hole segment 111 is located outside the second hole segment 112. The diameter of the first hole segment 111 is larger than the diameter of the second hole segment 112. The relatively large diameter of the first hole segment 111 can limit the connection part 22 and achieve the initial alignment between the connection part 22 and the opening 11. The second hole segment 112 can accurately position the connection part 22 and achieve the cooperation between the connection part 22 and the opening 11.

[0079] In some embodiments, refer to the appendix Figure 3 As shown, the connecting part 22 passes through the first hole section 111 and the second hole section 112 simultaneously. The sealing ring 3 is disposed between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the first hole section 111, and the two axial ends of the sealing ring 3 abut against the inner bottom wall of the first hole section 111 and the main body part 21, respectively.

[0080] It is understandable that the sealing ring 3 is located within the gap defined by the outer peripheral wall of the connecting part 22, the inner bottom wall and inner peripheral wall of the first hole section 111, and the side wall of the body part 21 facing the valve island 1. During the assembly process of the functional component 2 and the valve island 1, the connecting part 22 gradually extends from the first hole section 111 into the second hole section 112, and the gap between the side wall of the body part 21 facing the valve island 1 and the inner bottom wall of the first hole section 111 gradually decreases. The sealing ring 3 located in the gap gradually deforms. When the functional component 2 and the valve island 1 are assembled, the radial inner end of the sealing ring 3 abuts against the outer peripheral wall of the connecting part 22, and the radial outer end of the sealing ring 3 abuts against the inner peripheral wall of the first hole section 111. The sealing ring 3 is axially (see attached diagram). Figure 3One end of the sealing ring 3 (in the direction shown in c) abuts against the inner bottom wall of the first hole section 111, and the other end abuts against the side wall of the main body 21 facing the valve island 1. This ensures that the sealing ring 3 can seal the gap defined by the outer peripheral wall of the connecting part 22, the inner bottom wall and inner peripheral wall of the first hole section 111, and the side wall of the main body 21 facing the valve island 1. This further prevents refrigerant from leaking from the gap, ensures the sealing reliability between the functional component 2 and the valve island 1, prevents leakage of the valve assembly 100, ensures the reliability and stability of the valve assembly 100, reduces the maintenance frequency of the valve assembly 100, and extends the service life of the valve assembly 100.

[0081] In other embodiments, reference is made to the appendix. Figure 1 and attached Figure 2 As shown, the connecting portion 22 includes components along the axial direction of the connecting portion 22 (see attached diagram). Figure 1 The first segment 221 and the second segment 222 are arranged and connected in the direction c shown. The first segment 221 is located between the second segment 222 and the main body 21. The first segment 221 is located inside the first hole segment 111. The second segment 222 passes through both the first hole segment 111 and the second hole segment 112. The sealing ring 3 is located between the outer peripheral wall of the second segment 222 and the inner peripheral wall of the first hole segment 111. The axial direction of the sealing ring 3 (see attached diagram) Figure 1 One end of the section (in the direction c) abuts against the end of the first segment 221 that is away from the main body 21, and the other end abuts against the inner bottom wall of the first hole segment 111.

[0082] It is understandable that the sealing ring 3 is located in the gap defined between the inner bottom wall and inner peripheral wall of the first hole section 111, the side wall of the first section 221 facing away from the main body 21, and the outer peripheral wall of the second section 222. During the assembly process of the functional component 2 and the valve island 1, the connecting part 22 gradually extends from the first hole section 111 into the second hole section 112, and the gap between the side wall of the first section 221 facing away from the main body 21 and the inner bottom wall of the first hole section 111 gradually decreases, and the sealing ring 3 located in the gap gradually deforms.

[0083] When the functional component 2 is assembled with the valve island 1, the radial inner ring of the sealing ring 3 abuts against the outer peripheral wall of the second section 222, the radial outer end of the sealing ring 3 abuts against the inner peripheral wall of the first hole section 111, one axial end of the sealing ring 3 abuts against the end of the first section 221 away from the body part 21, and the other end abuts against the inner bottom wall of the first hole section 111. This ensures that the sealing ring 3 can seal the gap defined between the inner bottom wall and inner peripheral wall of the first hole section 111, the side wall of the first section 221 away from the body part 21, and the outer peripheral wall of the second section 222, further preventing refrigerant leakage from the gap, ensuring the sealing reliability between the functional component 2 and the valve island 1, preventing leakage of the valve assembly 100, ensuring the reliability and stability of the valve assembly 100, reducing the maintenance frequency of the valve assembly 100, and extending the service life of the valve assembly 100.

[0084] In a further embodiment of this utility model, reference is made to the appendix. Figure 4 As shown, the valve island 1 includes a valve seat portion 13 and a connecting pipe 12. A first flow channel 10 is formed in the valve seat portion 13, and an opening 11 is formed on the connecting pipe 12 and communicates with the first flow channel 10. At least a portion of the connecting pipe 12 is located outside the valve seat portion 13. A connecting portion 22 passes through the connecting pipe 12. The connecting pipe 12 can extend the opening 11, thereby guiding and positioning the connecting portion 22, facilitating the assembly of the connecting portion 22 into the opening 11. Furthermore, during assembly and normal use, it reduces the probability of radial shaking and displacement of the connecting portion 22, improving the reliability and stability of the fit between the connecting portion 22 and the valve island 1, thereby indirectly ensuring the reliable sealing between the functional component 2 and the valve island 1.

[0085] In a further embodiment of this utility model, reference is made to the appendix. Figure 4 As shown, the protrusion 4 is provided on the outer peripheral wall of the connecting part 22. The protrusion 4 extends along the circumferential direction of the connecting part 22. By providing the protrusion 4 on the outer peripheral wall of the connecting part 22, the processing difficulty of the protrusion 4 can be reduced, which facilitates the production and processing of the functional component 2. The protrusion 4 abuts against the side end face of the connecting pipe 12 away from the valve seat 13. A sealed space is formed between the protrusion 4, the side end face of the connecting pipe 12 away from the valve seat 13, the inner peripheral wall of the connecting pipe 12, and the outer peripheral wall of the connecting part 22. When the refrigerant leaks from between the inner peripheral wall of the connecting pipe 12 and the outer peripheral wall of the connecting part 22, the leaked refrigerant can be retained in the sealed space, preventing the refrigerant from leaking to areas other than the protrusion 4, reducing the probability of valve assembly 100 leakage, ensuring the reliability and stability of valve assembly 100, reducing the maintenance frequency of valve assembly 100, and extending the service life of valve assembly 100.

[0086] In a further embodiment of this utility model, reference is made to the appendix. Figure 6 and attached Figure 7 As shown, in the radially inward direction of the connecting pipe 12, the side end face of the connecting pipe 12 facing away from the valve seat 13 is inclined in the direction facing away from the valve seat 13. This allows a line seal to be formed between the protrusion 4 and the side end face of the connecting pipe 12 facing away from the valve seat 13. While ensuring the seal between the protrusion 4 and the side end face of the connecting pipe 12 facing away from the valve seat 13, the processing difficulty of the connecting pipe 12 is reduced as much as possible, and the sealing accuracy between the connecting pipe 12 and the connecting part 22 is improved.

[0087] In other embodiments of this utility model, reference is made to the appendix. Figure 4 and attached Figure 5As shown, in the radially inward direction of the connecting pipe 12, the side end face of the connecting pipe 12 facing away from the valve seat portion 13 is inclined towards the direction close to the valve seat portion 13. This allows a line seal to be formed between the protrusion 4 and the side end face of the connecting pipe 12 facing away from the valve seat portion 13. While ensuring the seal between the protrusion 4 and the side end face of the connecting pipe 12 facing away from the valve seat portion 13, the processing difficulty of the connecting pipe 12 is reduced as much as possible, and the sealing accuracy between the connecting pipe 12 and the connecting portion 22 is improved.

[0088] In a further embodiment of this utility model, reference is made to the appendix. Figure 4 As shown, the functional component 2 also includes a fixing member 23, which is disposed on the connecting part 22. At least a portion of the fixing member 23 is located on the side of the protrusion 4 away from the valve island 1, which can ensure the connection between the fixing member 23 and the connecting part 22 and prevent the fixing member 23 from coming off the connecting part 22. The fixing member 23 is detachably connected to the connecting pipe 12. By connecting the fixing member 23 to the connecting pipe 12, the connecting part 22 and the connecting pipe 12 can be indirectly connected, thereby achieving the fixation between the connecting part 22 and the connecting pipe 12 and reducing the manufacturing difficulty of the connecting part 22.

[0089] The detachable connection between the fixing component 23 and the connecting pipe 12 reduces the assembly and disassembly difficulty between the valve island 1 and the functional component 2, improves the assembly and maintenance efficiency of the valve assembly 100, reduces the maintenance cost of the valve assembly 100, and allows for the repair and replacement of only the damaged component when one of the valve island 1 and the functional component 2 is damaged, while the undamaged component does not need to be repaired or replaced and can continue to be used, thereby relatively reducing the maintenance cost of the valve assembly 100 and extending the service life of the valve assembly 100.

[0090] For example, the fastener 23 can be a mounting lug provided on the outer peripheral wall of the connecting part 22. The fixed end of the mounting lug is located on the side of the protrusion 4 away from the valve island 1, and the free end of the mounting lug extends toward the direction close to the valve island 1. The mounting lug and the connecting pipe 12 are connected by fasteners 5, which can ensure the reliability and stability of the connection between the functional component 2 and the valve island 1.

[0091] In a further embodiment of this utility model, reference is made to the appendix. Figure 4 As shown, the fastener 23 is sleeved on the connecting portion 22. The fastener 23 includes components along the axial direction of the connecting portion 22 (see attached diagram). Figure 4The mounting section 231 and the fixing section 232 are arranged and connected in the direction c shown. The mounting section 231 is located on the side of the protrusion 4 away from the valve island 1, which can prevent the fixing part 23 from moving towards the valve island 1 and coming off the connecting part 22. The fixing section 232 surrounds the connecting pipe 12 and is threadedly connected to the connecting pipe 12. The outer peripheral wall of the connecting pipe 12 is provided with external threads, and the inner peripheral wall of the fixing section 232 is provided with internal threads. The internal threads and external threads cooperate to realize a reliable connection between the fixing section 232 and the connecting pipe 12, ensuring the reliability and stability of the connection between the functional component 2 and the valve island 1.

[0092] It should be noted that the fixing member 23 is movable relative to the connecting part 22. After the connecting part 22 is inserted into the connecting pipe 12, the fixing member 23 can be rotated independently to achieve a threaded connection between the fixing member 23 and the connecting pipe 12, ensuring complete fastening between the functional component 2 and the valve island 1. After the functional component 2 and the valve island 1 are assembled, one end of the mounting section 231 facing the protrusion 4 can directly abut against the protrusion 4, or a limiting structure can be provided on one side wall of the mounting section 231 facing the protrusion 4, with the limiting structure abutting against the protrusion 4. Alternatively, limiting devices can be provided at other positions of the fixing member 23 to restrict the relative movement between the connecting pipe 12 and the fixing member 23 in the axial direction of the connecting pipe 12.

[0093] In a further embodiment of this utility model, reference is made to the appendix. Figure 4 and attached Figure 6 As shown, the connecting pipe 12 is welded to the valve seat 13. This allows the connecting pipe 12 and the valve seat 13 to be processed separately, reducing the manufacturing difficulty of the connecting pipe 12 and the valve seat 13 and shortening the production cycle of the valve assembly 100. By connecting the connecting pipe 12 and the valve seat 13 through welding, the reliability of the connection between the connecting pipe 12 and the valve seat 13 can be ensured, and the refrigerant can be prevented from flowing out of the valve assembly 100 from the gap between the connecting pipe 12 and the valve seat 13, thus ensuring the reliability of the valve assembly 100.

[0094] In other embodiments of this utility model, reference is made to the appendix. Figure 5 and attached Figure 7 As shown, the connecting pipe 12 and the valve seat 13 are integrated, eliminating the need to assemble them separately. This reduces the number of parts in the valve assembly 100, simplifies the assembly process, and shortens the assembly cycle. Furthermore, when subjected to external forces, the stress is evenly distributed on the connecting pipe 12 and the valve seat 13, improving their fatigue life and reliability.

[0095] In a further embodiment of this utility model, reference is made to the appendix. Figure 4As shown, the sealing ring 3 is disposed between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the connecting pipe 12. Both the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the connecting pipe 12 abut against the sealing ring 3. The sealing ring 3 extends along the circumferential direction of the connecting part 22 and can be used to seal the gap between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the connecting pipe 12, preventing refrigerant from flowing out from the gap between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the connecting pipe 12. It can also prevent external dust and other impurities from entering the valve island 1 or the functional component 2 from the gap between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the connecting pipe 12, reducing the probability of blockage in the opening 11, the first flow channel 10 and the second flow channel 20, and ensuring the normal flow of refrigerant in the opening 11, the first flow channel 10 and the second flow channel 20.

[0096] In a further embodiment of this utility model, reference is made to the appendix. Figure 8 As shown, the end of the opening 11 facing the main body 21 has a groove 113, and the connecting part 22 is disposed in the groove 113. The end of the connecting part 22 away from the main body 21 abuts against the inner bottom wall of the groove 113. Through the cooperation between the end of the connecting part 22 away from the main body 21 and the inner bottom of the groove 113, on the one hand, the valve island 1 can limit the functional component 2, preventing the connecting part 22 from continuing to move towards the inside of the valve island 1. On the other hand, it can play a sealing role to a certain extent, reducing the probability of refrigerant flowing out from the gap between the end of the connecting part 22 away from the main body 21 and the inner bottom wall of the groove 113, preventing the valve assembly 100 from leaking, ensuring the reliability and stability of the valve assembly 100, reducing the maintenance frequency of the valve assembly 100, and extending the service life of the valve assembly 100.

[0097] In a further embodiment of this utility model, reference is made to the appendix. Figure 9 As shown, the inner bottom wall of the groove 113 includes a first wall surface 114 and a second wall surface 115 arranged radially in the opening 11. The first wall surface 114 connects the second wall surface 115 and the inner peripheral wall of the groove 113. In the direction from the body portion 21 to the valve island 1, the first wall surface 114 faces the axial direction of the opening 11 (see attached diagram). Figure 9 The connecting part 22 is inclined in the direction c shown. The end of the connecting part 22 away from the main body part 21 has a protrusion 4. The protrusion 4 abuts against the first wall surface 114. Compared with the inner bottom wall of the groove 113, which is a plane perpendicular to the axis of the opening 11, the inner bottom wall of the groove 113 is divided into the first wall surface 114 and the second wall surface 115. The first wall surface 114 is made into an inclined surface, which makes it easier for the protrusion 4 to abut against the first wall surface 114, ensuring the seal between the connecting part 22 and the inner wall of the opening 11 and reducing the possibility of refrigerant leakage.

[0098] In a further embodiment of this utility model, reference is made to the appendix. Figure 9As shown, the end of the connecting portion 22 facing away from the main body 21 includes a third wall surface 223 and a fourth wall surface 224 arranged in the radial direction of the connecting portion 22. The third wall surface 223 connects the fourth wall surface 224 and the outer peripheral wall of the connecting portion 22. In the direction from the main body 21 to the valve island 1, the third wall surface 223 faces the axial direction of the connecting portion 22 (see attached diagram). Figure 9 The third wall surface 223 and the fourth wall surface 224 are inclined in the direction c shown. A protrusion 4 is formed between the third wall surface 223 and the fourth wall surface 224. The intersection line between the third wall surface 223 and the fourth wall surface 224 abuts against the first wall surface 114 to form a sealing line. This can prevent refrigerant from flowing out from the gap between the protrusion 4 and the first wall surface 114, improve the sealing performance between the protrusion 4 and the first wall surface 114, prevent refrigerant from flowing between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113, ensure the accuracy of the seal between the valve island 1 and the functional component 2, reduce the possibility of leakage of the valve assembly 100, improve the reliability and stability of the valve assembly 100, reduce the maintenance frequency of the valve assembly 100, and extend the service life of the valve assembly 100.

[0099] Specifically, such as Figure 9 As shown, the angle between the inclination direction of the first wall surface 114 and the axis of the opening 11 is α, and the angle between the inclination direction of the third wall surface 223 and the axis of the opening 11 is β, where α > β.

[0100] In other embodiments of this utility model, reference is made to the appendix. Figure 13 As shown, a protrusion 4 is formed between the third wall surface 223 and the outer peripheral wall of the connecting part 22. The intersection line between the third wall surface 223 and the outer peripheral wall of the connecting part 22 abuts against the first wall surface 114 to form a sealing line. This prevents refrigerant from flowing out from the gap between the protrusion 4 and the first wall surface 114, improves the sealing performance between the protrusion 4 and the first wall surface 114, prevents refrigerant from flowing between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113, ensures the accuracy of the seal between the valve island 1 and the functional component 2, reduces the possibility of leakage of the valve assembly 100, improves the reliability and stability of the valve assembly 100, reduces the maintenance frequency of the valve assembly 100, and extends the service life of the valve assembly 100.

[0101] Specifically, such as Figure 13 As shown, the angle between the inclination direction of the first wall surface 114 and the axis of the opening 11 is α, and the angle between the inclination direction of the third wall surface 223 and the axis of the opening 11 is b. <b。

[0102] In a further embodiment of this utility model, reference is made to the appendix. Figure 8As shown, the sealing ring 3 is disposed between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113. Both the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113 abut against the sealing ring 3. The sealing ring 3 extends along the circumferential direction of the connecting part 22 and can be used to seal the gap between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113, preventing refrigerant from flowing out from the gap between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113. It can also prevent external dust and other impurities from entering the valve island 1 or the functional component 2 from the gap between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113, reducing the probability of blockage in the opening 11, the first flow channel 10 and the second flow channel 20, and ensuring the normal flow of refrigerant in the opening 11, the first flow channel 10 and the second flow channel 20.

[0103] In a further embodiment of this utility model, reference is made to the appendix. Figure 8 As shown, the sealing ring 3 is along the axial direction of the connecting part 22 (see attached diagram). Figure 8 Multiple sealing rings (as shown in direction c) spaced apart can form multiple sealing barriers, sealing multiple points spaced apart in the axial direction of the connection portion 22, further preventing refrigerant leakage from the gap between the outer peripheral wall of the connection portion 22 and the inner peripheral wall of the opening 11, and improving the sealing reliability of the sealing rings 3. For example, the sealing rings 3 can be two, three, four, or five spaced apart along the axial direction of the connection portion 22.

[0104] In some embodiments, the sealing rings 3 are two rings spaced apart along the axial direction of the connection portion 22, such as... Figure 8 As shown, both sealing rings 3 are axial seals, as... Figure 10 As shown, both sealing rings 3 are radial seals, as... Figure 11 As shown, one of the two sealing rings 3 is for axial sealing and the other is for radial sealing; no further restrictions are imposed here.

[0105] In a further embodiment of this utility model, reference is made to the appendix. Figure 1 As shown, the connecting part 22 is threadedly connected to the valve island 1. The outer peripheral wall of the connecting part 22 has an external thread, and the inner peripheral wall of the opening 11 has an internal thread. The internal and external threads mate to achieve a reliable connection between the connecting part 22 and the valve island 1, ensuring the reliability and stability of the connection between the functional component 2 and the valve island 1. Furthermore, the threaded connection between the connecting part 22 and the valve island 1 allows the protrusion 4 to be subjected to pressure, further ensuring the sealing reliability between the valve island 1 and the functional component 2 (which does not have the protrusion 4) and the protrusion 4. Moreover, since the connecting part 22 is directly threadedly connected to the valve island 1, the connection is made at the mating position of the functional component 2 and the valve island 1, which further improves the reliability of the connection and reduces the number of parts in the valve assembly 100, simplifying the assembly process of the valve assembly 100.

[0106] In some embodiments of this utility model, reference is made to the appendix. Figure 2 As shown, the functional component 2 and the valve island 1 are connected by fasteners 5, which facilitates the disassembly and assembly of the functional component 2 and the valve island 1, and ensures the connection strength and reliability between the functional component 2 and the valve island 1. It should be noted that, depending on the specific shape and size of the valve assembly 100, multiple fasteners 5 can be used to connect the functional component 2 and the valve island 1 to ensure the reliability and stability of the connection between the functional component 2 and the valve island 1, and extend the service life of the valve assembly 100.

[0107] In some embodiments of this utility model, reference is made to the appendix. Figure 2 As shown, there are multiple openings 11 spaced apart, and multiple functional components 2 corresponding to the multiple openings 11. Multiple functional components 2 can be integrated on the valve island 1 to realize the modularity of the valve assembly 100.

[0108] It should be noted that the valve island 1 has multiple first flow channels 10 inside, each first flow channel 10 is connected to at least two openings 11, and each opening 11 is provided with a functional component 2. The second flow channel 20 of each functional component 2 is connected to the first flow channel 10 through the opening 11, so that the valve island 1 can replace multiple pipes in the prior art and directly assemble multiple functional components 2 onto the valve island 1 to integrate them into a valve assembly 100, thereby realizing the miniaturization and centralization of the valve assembly 100, reducing the space occupied by the valve assembly 100, and facilitating the assembly of the valve assembly 100.

[0109] In some embodiments of this utility model, reference is made to the appendix. Figure 16 and attached Figure 17 As shown, the functional component 2 is at least one of a valve, a pipe 63, a heat exchanger 64, or a compressor. It is understood that the valve, pipe 63, heat exchanger 64, and compressor can all be located at the opening 11 of the valve island 1 and are detachably connected to the valve island 1. This allows the valve, pipe 63, heat exchanger 64, or compressor to be integrated onto the valve island 1 while simultaneously enabling the second flow channel 20 of the valve, pipe 63, heat exchanger 64, or compressor to communicate with the first flow channel 10 of the valve island 1.

[0110] When functional component 2 is a valve, refer to the appendix. Figure 16 and attached Figure 17 As shown, the valve can be used to control the opening and closing of the internal second flow channel 20 and to regulate the flow rate in the second flow channel 20, thereby controlling the flow rate from the second flow channel 20 to the first flow channel 10. Through the soft seal of the sealing ring 3 and the hard seal of the protrusion 4, a double seal can be achieved, effectively reducing the risk of leakage.

[0111] For details, please refer to the appendix. Figure 16 and attached Figure 17As shown, the valve can be an electronic expansion valve 61 or a four-way valve 62. Both the electronic expansion valve 61 and the four-way valve 62 can be used to control the on / off state of the refrigerant in the second flow channel 20 or to regulate the flow rate in the second flow channel 20. The electronic expansion valve 61 is relatively more stable and precise in regulating the refrigerant flow rate, while the four-way valve 62 contains four channels, which can realize the regulation of the refrigerant flow direction and realize the heat exchange function of the heat exchange system.

[0112] When functional component 2 is pipe connector 63, refer to the appendix. Figure 16 and attached Figure 17 As shown, the second flow channel 20 of the connector 63 can be connected to the first flow channel 10 of the valve island 1 to realize the delivery of refrigerant.

[0113] When functional component 2 is heat exchanger 64, refer to the attached document. Figure 14 and attached Figure 15 As shown, the heat exchange flow path of heat exchanger 64 is connected to the first flow channel 10 of valve island 1 through opening 11, so that refrigerant can flow between the heat exchange flow path and the first flow channel 10. Double sealing is achieved through the soft seal of sealing ring 3 and the hard seal of protrusion 4, effectively reducing the risk of leakage and improving the heat exchange efficiency of valve assembly 100. Optionally, heat exchanger 64 is a plate heat exchanger 64. Specifically, heat exchanger 64 includes a heat exchange unit, a first end plate, and a second end plate. The first and second end plates are arranged at intervals in the thickness direction. The heat exchange unit is fixed between the first and second end plates. First and second channels are formed within heat exchanger 64, spaced apart from each other. When the refrigerant flows in the first and second channels, it exchanges heat with the inner walls of the first and second channels, thereby achieving heat exchange between the refrigerant in the first channel and the refrigerant in the second channel.

[0114] When the functional component 2 is a compressor, the compressor's exhaust pipe is connected to the first flow channel 10 of the valve island 1 through the opening 11, so that the refrigerant can flow between the exhaust pipe and the first flow channel 10. Through the soft seal of the sealing ring 3 and the hard seal of the protrusion 4, a double seal can be achieved, effectively reducing the risk of leakage and improving the heat exchange efficiency of the valve assembly 100.

[0115] Of course, this utility model is not limited thereto; please refer to the appendix. Figure 16 and attached Figure 17 As shown, the valve assembly 100 may also include a gas-liquid separator 65, which can further integrate the valve assembly 100.

[0116] When the valve assembly 100 is applied to an air conditioner, there are multiple functional components 2, including a heat exchanger 64 and another functional component 2, which is a compressor. When the air conditioner is cooling, the refrigerant is transported from the compressor's exhaust pipe through the opening 11 to the first flow channel 10 of the valve island 1, and then transported through the corresponding opening 11 to the heat exchange flow path of the heat exchanger 64.

[0117] The following is for reference. Figures 1 to 13 The valve assembly 100 is described according to eleven specific embodiments of the present invention. It is to be understood that the following description is merely exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0118] Example 1

[0119] like Figure 1 As shown, the valve assembly 100 includes a valve island 1 and a functional component 2. A first flow channel 10 is formed within the valve island 1. The valve island 1 has an opening 11 communicating with the first flow channel 10. The opening 11 includes a first orifice 111 and a second orifice 112 arranged and communicating along the axial direction of the opening 11. The first orifice 111 is located outside the second orifice 112, and the diameter of the first orifice 111 is larger than the diameter of the second orifice 112. The functional component 2 includes a body portion 21 and a connecting portion 22. The connecting portion 22 is located on the side of the body portion 21 facing the valve island 1. The connecting portion 22 includes a first segment 221 and a second segment 222 arranged and connected along the axial direction of the connecting portion 22. 2. The first segment 221 is located between the second segment 222 and the main body 21. The first segment 221 is located inside the first hole segment 111. The second segment 222 passes through both the first hole segment 111 and the second hole segment 112. The outer peripheral wall of the second segment 222 is threadedly connected to the inner peripheral wall of the second hole segment 112. A sealing ring 3 is provided between the outer peripheral wall of the second segment 222 and the inner peripheral wall of the first hole segment 111. Both the outer peripheral wall of the second segment 222 and the inner peripheral wall of the first hole segment 111 abut against the sealing ring 3. One end of the sealing ring 3 in the axial direction abuts against the end of the first segment 221 that is away from the main body 21, and the other end abuts against the inner bottom wall of the first hole segment 111. Further, a protrusion 4 is provided on the outer wall surface of the valve island 1. The protrusion 4 surrounds the opening 11, and the side wall surface of the main body 21 facing the valve island 1 is sealed with the protrusion 4.

[0120] Therefore, by providing a sealing ring 3 between the outer peripheral wall of the second section 222 and the inner peripheral wall of the first hole section 111, a soft seal can be formed between the functional component 2 and the valve island 1, effectively preventing refrigerant from flowing out from the gap between the functional component 2 and the valve island 1, and preventing external dust and other impurities from entering the valve island 1 or the interior of the functional component 2. After the valve assembly 100 has been used for a long time, once the seal of the sealing ring 3 fails, the refrigerant will gradually penetrate into the sealing space defined by the protrusion 4 and the body 21, so that the refrigerant remains in the sealing space. Thus, the sealing reliability between the functional component 2 and the valve island 1 can be guaranteed through double sealing, avoiding leakage of the valve assembly 100, ensuring the reliability and stability of the valve assembly 100, reducing the maintenance frequency of the valve assembly 100, and extending the service life of the valve assembly 100.

[0121] Example 2

[0122] like Figure 2 As shown, the structure of Embodiment 2 is roughly the same as that of Embodiment 1. The same components are referred to by the same reference numerals. The only difference is that there are two openings 11 spaced apart, and two functional components 2 that correspond one-to-one with the two openings 11. The functional components 2 are connected to the valve island 1 by fasteners 5.

[0123] Example 3

[0124] like Figure 3 As shown, the structure of Embodiment 3 is roughly the same as that of Embodiment 2, with the same reference numerals used for the same components. The only difference is that the cross-sectional area of ​​the connecting part 22 is always equal in the axial direction. The connecting part 22 passes through the first hole section 111 and the second hole section 112 at the same time. The sealing ring 3 is disposed between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the first hole section 111. The outer peripheral wall of the connecting part 22 and the inner peripheral wall of the first hole section 111 are both in contact with the sealing ring 3, and the two axial ends of the sealing ring 3 are respectively in contact with the inner bottom wall of the first hole section 111 and the main body 21.

[0125] Example 4

[0126] like Figure 4 As shown, the structure of Embodiment 4 is largely the same as that of Embodiment 3, with identical components using the same reference numerals. The only difference is that the valve island 1 includes a valve seat portion 13 and a connecting pipe 12. The valve seat portion 13 is welded to the connecting pipe 12. A first flow channel 10 is formed inside the valve seat portion 13, and an opening 11 is formed on the connecting pipe 12 and communicates with the first flow channel 10. At least a portion of the connecting pipe 12 is located outside the valve seat portion 13. A connecting portion 22 passes through the connecting pipe 12. A sealing ring 3 is disposed between the outer peripheral wall of the connecting portion 22 and the inner peripheral wall of the connecting pipe 12. Both the outer peripheral wall of the connecting portion 22 and the inner peripheral wall of the connecting pipe 12 abut against the sealing ring 3. A protrusion 4 is disposed on the outer peripheral wall of the connecting portion 22. In the radially inward direction of the connecting pipe 12, the end face of the connecting pipe 12 facing away from the valve seat portion 13 is inclined towards the direction close to the valve seat portion 13, and the protrusion 4 abuts against the end face of the connecting pipe 12 facing away from the valve seat portion 13. Furthermore, the functional component 2 also includes a fixing member 23, which is sleeved on the connecting part 22. The fixing member 23 includes an installation section 231 and a fixing section 232 arranged and connected along the axial direction of the connecting part 22. The installation section 231 is located on the side of the protrusion 4 away from the valve island 1, and the fixing section 232 surrounds the connecting pipe 12 and is threadedly connected to the connecting pipe 12.

[0127] Therefore, by providing a sealing ring 3 between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the connecting pipe 12, a soft seal can be formed between the functional component 2 and the valve island 1, effectively preventing refrigerant from flowing out from the gap between the functional component 2 and the valve island 1, and preventing external dust and other impurities from entering the valve island 1 or the interior of the functional component 2. After the valve assembly 100 has been used for a long time, once the seal of the sealing ring 3 fails, the refrigerant will gradually penetrate into the sealing space defined by the protrusion 4 and the side end face of the connecting pipe 12 opposite to the outlet 11, so that the refrigerant remains in the sealing space. Thus, the sealing reliability between the functional component 2 and the valve island 1 can be guaranteed through double sealing, avoiding leakage of the valve assembly 100, ensuring the reliability and stability of the valve assembly 100, reducing the maintenance frequency of the valve assembly 100, and extending the service life of the valve assembly 100.

[0128] Example 5

[0129] like Figure 5 As shown, the structure of Embodiment 5 is roughly the same as that of Embodiment 4, with the same components using the same reference numerals. The only difference is that the connecting pipe 12 and the valve seat 13 are an integral piece.

[0130] Example 6

[0131] like Figure 6 As shown, the structure of Embodiment 6 is roughly the same as that of Embodiment 4, with the same components using the same reference numerals. The only difference is that in the radially inward direction of the connecting pipe 12, the end face of the connecting pipe 12 facing away from the valve seat 13 is inclined in the direction facing away from the valve seat 13.

[0132] Example 7

[0133] like Figure 7 As shown, Embodiment 7 has a structure that is largely the same as Embodiment 6, with the same components using the same reference numerals. The only difference is that the connecting pipe 12 and the valve seat 13 are integral parts.

[0134] Example 8

[0135] like Figure 8 and Figure 9As shown, Embodiment 8 has a structure that is largely the same as Embodiment 2, with identical components using the same reference numerals. The only difference is that the end of the opening 11 facing the main body 21 has a groove 113. A sealing ring 3 is disposed between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113. Both the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113 abut against the sealing ring 3. There are two sealing rings 3 spaced apart along the axial direction of the connecting part 22, and both sealing rings 3 provide axial sealing. The inner bottom wall of the groove 113 includes a first wall surface 114 and a second wall surface 115 arranged radially in the opening 11. The first wall surface 114 is connected to the second wall surface 115. Between the inner peripheral wall of the groove 113 and the valve island 1, the first wall surface 114 is inclined toward the axis of the opening 11 in the direction from the body part 21 to the valve island 1. The connecting part 22 is provided in the groove 113. The end of the connecting part 22 away from the body part 21 includes a third wall surface 223 and a fourth wall surface 224 arranged in the radial direction of the connecting part 22. The third wall surface 223 is connected between the fourth wall surface 224 and the outer peripheral wall of the connecting part 22. In the direction from the body part 21 to the valve island 1, the third wall surface 223 is inclined toward the axis of the connecting part 22. A protrusion 4 is formed between the third wall surface 223 and the fourth wall surface 224. The protrusion 4 abuts against the first wall surface 114.

[0136] Therefore, by providing a sealing ring 3 between the outer peripheral wall of the connecting part 22 and the inner peripheral wall of the groove 113, a soft seal can be formed between the functional component 2 and the valve island 1, effectively preventing refrigerant from flowing out from the gap between the functional component 2 and the valve island 1, and preventing external dust and other impurities from entering the valve island 1 or the interior of the functional component 2. After the valve assembly 100 has been used for a long time, once the seal of the sealing ring 3 fails, the refrigerant will gradually penetrate into the sealing space defined by the protrusion 4 and the first wall surface 114, so that the refrigerant remains in the sealing space. Thus, the sealing reliability between the functional component 2 and the valve island 1 can be guaranteed through double sealing, avoiding leakage of the valve assembly 100, ensuring the reliability and stability of the valve assembly 100, reducing the maintenance frequency of the valve assembly 100, and extending the service life of the valve assembly 100.

[0137] Example 9

[0138] like Figure 10 As shown, the structure of Embodiment Nine is roughly the same as that of Embodiment Eight, with the same components using the same reference numerals. The only difference is that both sealing rings 3 are radial seals.

[0139] Example 10

[0140] like Figure 11 As shown, the structures of Embodiment 10 and Embodiment 8 are largely the same, with the same components using the same reference numerals. The only difference is that one of the two sealing rings 3 is an axial seal and the other is a radial seal.

[0141] Example 11

[0142] like Figure 12 and Figure 13 As shown, the structures of Embodiment 11 and Embodiment 8 are largely the same, with the same reference numerals used for the same components. The only difference is that a protrusion 4 is formed between the third wall surface 223 and the outer peripheral wall of the connecting part 22.

[0143] This utility model also proposes an air conditioner having the valve assembly 100 of the above embodiments.

[0144] When the valve assembly 100 is applied to an air conditioner, the valve island 1 has multiple openings 11 and multiple functional components 2, including a heat exchanger 64 and a compressor. The heat exchanger 64 and the compressor are detachably connected to different openings 11 of the valve island 1. Thus, the valve island 1 enables the connection between the compressor's exhaust pipe and the heat exchange flow path of the heat exchanger 64, so that the refrigerant can flow in the compressor's exhaust pipe and the heat exchange flow path of the heat exchanger 64. When the air conditioner is cooling, the refrigerant is transported from the compressor's exhaust pipe through the opening 11 to the first flow channel 10 of the valve island 1, and then through the corresponding opening 11 to the heat exchange flow path of the heat exchanger 64.

[0145] According to the embodiment of the present utility model, the air conditioner is provided with the above-mentioned valve assembly 100. By detachably providing the functional component 2 at the opening 11 of the valve island 1, and providing a sealing ring 3 between the functional component 2 and the valve island 1, a soft seal can be formed between the functional component 2 and the valve island 1, effectively preventing refrigerant from flowing out from the gap between the functional component 2 and the valve island 1, and preventing external dust and other impurities from entering the valve island 1 or the interior of the functional component 2. One of the valve island 1 and the functional component 2 has a protrusion 4, and the other of the valve island 1 and the functional component 2 abuts against the protrusion 4. The protrusion 4 extends in a ring shape along the circumferential direction of the opening 11. Once the sealing ring 3 fails, the protrusion 4 can cooperate with the valve island 1 and the functional component 2 that does not have a protrusion 4 to keep the permeated refrigerant in the sealed space. This double sealing can ensure the sealing reliability between the functional component 2 and the valve island 1, prevent leakage of the valve assembly 100, ensure the reliability and stability of the valve assembly 100, reduce the maintenance frequency of the valve assembly 100, and extend the service life of the valve assembly 100.

[0146] The valve assembly 100 and other components and operations of the air conditioner according to the embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0147] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0148] 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 valve assembly, characterized in that, include: A valve island, wherein a first flow channel is formed within the valve island, and the valve island has an opening communicating with the first flow channel; A functional component is detachably disposed at the opening. A sealing ring is provided between the functional component and the valve island. One of the valve island and the functional component has a protrusion. The other of the valve island and the functional component abuts against the protrusion. The protrusion extends in a ring shape along the circumferential direction of the opening.

2. The valve assembly according to claim 1, characterized in that, The valve island and the functional component without the protrusion contact the protrusion to form a seal.

3. The valve assembly according to claim 1, characterized in that, The functional component includes a body and a connecting part, the connecting part being located on the side of the body facing the valve island, and the connecting part extending into the opening.

4. The valve assembly according to claim 3, characterized in that, The protrusion is located on the outside of the valve island. The protrusion is provided on one of the outer wall surfaces of the valve island and the body portion. The protrusion surrounds the opening. The protrusion abuts against the outer wall surface of the valve island and the other of the body portions.

5. The valve assembly according to claim 3, characterized in that, The sealing ring is disposed between the outer peripheral wall of the connecting part and the inner peripheral wall of the opening, and both the outer peripheral wall of the connecting part and the inner peripheral wall of the opening abut against the sealing ring.

6. The valve assembly according to claim 5, characterized in that, The opening includes a first hole segment and a second hole segment arranged and connected along the axial direction of the opening. The first hole segment is located outside the second hole segment, and the diameter of the first hole segment is larger than the diameter of the second hole segment. The connecting part is simultaneously inserted into the first hole section and the second hole section. The sealing ring is disposed between the outer peripheral wall of the connecting part and the inner peripheral wall of the first hole section, and the two axial ends of the sealing ring abut against the inner bottom wall of the first hole section and the main body, respectively. Alternatively, the connecting portion includes a first segment and a second segment arranged and connected along the axial direction of the connecting portion. The first segment is located between the second segment and the main body portion. The first segment is located within the first hole segment. The second segment passes through both the first hole segment and the second hole segment. The sealing ring is located between the outer peripheral wall of the second segment and the inner peripheral wall of the first hole segment. One end of the sealing ring in the axial direction abuts against the end of the first segment opposite to the main body portion, and the other end abuts against the inner bottom wall of the first hole segment.

7. The valve assembly according to claim 3, characterized in that, The valve island includes a valve seat and a connecting pipe. The first flow channel is formed in the valve seat, and the opening is formed on the connecting pipe and communicates with the first flow channel. At least a portion of the connecting pipe is located outside the valve seat, and the connecting portion passes through the connecting pipe.

8. The valve assembly according to claim 7, characterized in that, The protrusion is provided on the outer peripheral wall of the connecting part, and the protrusion abuts against the end face of the connecting pipe opposite to the valve seat part.

9. The valve assembly according to claim 8, characterized in that, In the radially inward direction of the connecting pipe, the end face of the connecting pipe facing away from the valve seat is inclined in a direction away from the valve seat, or the end face of the connecting pipe facing away from the valve seat is inclined in a direction closer to the valve seat.

10. The valve assembly according to claim 8, characterized in that, The functional components also include: A fastener is provided on the connecting portion, and at least a portion of the fastener is located on the side of the protrusion opposite to the valve island. The fastener is detachably connected to the connecting pipe.

11. The valve assembly according to claim 10, characterized in that, The fastener is sleeved on the connecting part. The fastener includes an installation section and a fixing section arranged and connected along the axial direction of the connecting part. The installation section is located on the side of the protrusion away from the valve island, and the fixing section surrounds the connecting pipe and is threadedly connected to the connecting pipe.

12. The valve assembly according to claim 7, characterized in that, The connecting pipe is welded to the valve seat portion; Alternatively, the connecting pipe and the valve seat may be an integral part.

13. The valve assembly according to claim 7, characterized in that, The sealing ring is disposed between the outer peripheral wall of the connecting part and the inner peripheral wall of the connecting pipe, and both the outer peripheral wall of the connecting part and the inner peripheral wall of the connecting pipe abut against the sealing ring.

14. The valve assembly according to claim 3, characterized in that, The opening has a groove at one end facing the main body, and the connecting part is disposed in the groove. The end of the connecting part away from the main body abuts against the inner bottom wall of the groove.

15. The valve assembly according to claim 14, characterized in that, The inner bottom wall of the groove includes a first wall surface and a second wall surface arranged in the radial direction of the opening. The first wall surface is connected between the second wall surface and the inner peripheral wall of the groove. In the direction from the body to the valve island, the first wall surface is inclined toward the axial direction of the opening. The end of the connecting part away from the body has the protrusion, and the protrusion abuts against the first wall surface.

16. The valve assembly according to claim 15, characterized in that, The end of the connecting portion away from the main body includes a third wall surface and a fourth wall surface arranged in the radial direction of the connecting portion. The third wall surface is connected between the fourth wall surface and the outer peripheral wall of the connecting portion. In the direction from the main body to the valve island, the third wall surface is inclined toward the axial direction of the connecting portion. The protrusion is formed between the third wall surface and the fourth wall surface, or the protrusion is formed between the third wall surface and the outer peripheral wall of the connecting portion.

17. The valve assembly according to claim 14, characterized in that, The sealing ring is disposed between the outer peripheral wall of the connecting part and the inner peripheral wall of the groove, and both the outer peripheral wall of the connecting part and the inner peripheral wall of the groove abut against the sealing ring.

18. The valve assembly according to claim 3, characterized in that, The sealing rings are a plurality of those spaced apart along the axial direction of the connection portion.

19. The valve assembly according to claim 3, characterized in that, The connecting part is threadedly connected to the valve island.

20. The valve assembly according to claim 1, characterized in that, The functional components are connected to the valve island via fasteners.

21. The valve assembly according to claim 1, characterized in that, The openings are multiple and spaced apart, and the functional components are multiple components that correspond one-to-one with the multiple openings.

22. The valve assembly according to claim 1, characterized in that, The functional component is at least one of a valve, a connecting pipe, a heat exchanger, or a compressor.

23. An air conditioner, characterized in that, Includes the valve assembly according to any one of claims 1-22.

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