Refrigerant flow path device and air conditioner

Abstract

The utility model relates to the field of air conditioners, and the utility model discloses a refrigerant flow path device and air conditioner, refrigerant flow path device includes: the valve island forms first mounting hole, and the opening of first mounting hole forms at one installation end face of valve island, and valve mounting portion forms valve mounting hole, and valve body is arranged in valve mounting hole, and the cooperation clearance is formed between the outside wall of valve mounting portion and the inside wall of first mounting hole, sealing ring structure in the normal projection of installation end face plane covers the joint or connecting gap in the normal projection of installation end face plane of valve body and valve mounting hole, and / or sealing ring structure in the normal projection of installation end face plane covers the normal projection of cooperation clearance in the installation end face plane. Thus, by setting sealing ring structure, can reduce the risk that external moisture flows into first mounting hole through cooperation clearance, can reduce the corrosion risk of valve island, also can reduce the external moisture flow to the joint or connecting gap of valve body and valve mounting hole.

Description

Technical Field

[0001] This utility model relates to the field of air conditioners, and in particular to a refrigerant flow path device and an air conditioner having the refrigerant flow path device. Background Technology

[0002] In related technologies, air conditioners include a refrigerant flow path device, which comprises a valve island and a valve structure. The valve island has threaded holes, and the valve structure is installed in the threaded holes via threaded engagement. All surfaces of the valve island are covered with an anti-corrosion layer. Because the valve structure is assembled into the threaded holes via threaded engagement, the anti-corrosion layer at the threaded holes is easily damaged. External moisture entering the threaded holes can cause corrosion of the valve island, leading to rust and affecting its service life, thus impacting the service life of the refrigerant flow path device. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of this invention is to provide a refrigerant flow path device that can reduce the corrosion risk of the valve island, valve structure, and valve mounting parts, thereby improving the service life of the valve island, valve structure, and valve mounting parts, and consequently improving the service life of the refrigerant flow path device, and ultimately enhancing the reliability of the air conditioner.

[0004] This utility model further proposes an air conditioner.

[0005] The refrigerant flow path device according to an embodiment of the present invention includes: The valve island has a first mounting hole and a refrigerant flow channel. The refrigerant flow channel and the first mounting hole are connected. The opening of the first mounting hole is formed on a mounting end face of the valve island. The valve structure includes a valve body, the valve mounting part has a valve mounting hole, the valve body passes through the valve mounting hole and is fixedly connected to the valve mounting part, the valve mounting part is assembled in a first mounting hole, a valve flow channel is formed in the valve body, the valve flow channel and the refrigerant flow channel are connected, and a fitting clearance is formed between the outer side wall of the valve mounting part and the inner side wall of the first mounting hole. A sealing ring structure is fitted onto the valve body, with at least a portion of the sealing ring structure located on the side of the valve mounting portion away from the valve island. The orthographic projection of the sealing ring structure onto the plane containing the mounting end face covers the orthographic projection of the connection point or gap between the valve body and the valve mounting hole onto the plane containing the mounting end face; and / or The orthographic projection of the sealing ring structure onto the plane of the mounting end face covers the orthographic projection of the mating clearance onto the plane of the mounting end face.

[0006] According to the refrigerant flow path device of this utility model embodiment, by setting a sealing ring structure, the risk of external moisture flowing into the first mounting hole through the mating gap can be reduced, which can reduce the risk of valve island corrosion. It can also reduce the flow of external moisture to the connection or connection gap between the valve body and the valve mounting hole, which can reduce the risk of corrosion of the valve structure and valve mounting part. This is beneficial to improving the service life of the valve island, valve structure and valve mounting part, thereby improving the service life of the refrigerant flow path device and thus improving the reliability of the air conditioner.

[0007] In some examples of this utility model, the sealing ring structure includes: a sealing body, which is annular and sleeved on the valve body, with the end of the sealing body facing the valve mounting part in contact with the valve mounting part, and the end of the sealing body facing the valve mounting part covering the connection or gap between the valve body and the valve mounting hole.

[0008] In some examples of this utility model, the sealing ring structure includes a sealing body and a shielding ring. The sealing body is annular and sleeved on the valve body. The shielding ring surrounds the sealing body and extends radially along the sealing body. The shielding ring is located on one side of the mounting end face. The orthographic projection of the sealing body and / or the shielding ring onto the plane of the mounting end face covers the projection of the connection or gap between the valve body and the valve mounting hole onto the plane of the mounting end face; and / or The orthographic projection of the shielding ring on the plane where the mounting end face is located covers the orthographic projection of the mating gap on the plane where the mounting end face is located.

[0009] In some examples of this utility model, the shielding ring extends obliquely away from the sealing body in the direction from the shielding ring to the mounting end face.

[0010] In some examples of this invention, the outer end of the shielding ring away from the sealing body is spaced apart from or in contact with the valve mounting portion.

[0011] In some examples of this utility model, the sealing body and the shielding ring are integrated into one structure.

[0012] In some examples of this utility model, the refrigerant flow path device further includes: a first sealing structure, which surrounds the valve mounting portion and is located within the mating gap, and is used to cover at least part of the mating gap.

[0013] In some examples of this utility model, the mating gap is annular and extends circumferentially along the first mounting hole, and the first sealing structure is annular and extends circumferentially along the first mounting hole. At least a portion of the first sealing structure protrudes from the mounting end face; and / or The first sealing structure covers the end of the mating clearance facing the outside of the valve island; and / or The orthographic projection of the first sealing structure onto the plane containing the mounting end face covers the orthographic projection of the mating clearance onto the plane containing the mounting end face.

[0014] In some examples of this utility model, the first sealing structure includes: a first connecting part, a covering part and a second connecting part, the covering part being connected between the first connecting part and the second connecting part, the first connecting part being connected to the valve mounting part, the second connecting part being connected to the valve island, and the covering part and the mating clearance corresponding along the axial direction of the first mounting hole to cover the mating clearance.

[0015] In some examples of this utility model, the refrigerant flow path device further includes: a second sealing structure, the valve island is further formed with a second mounting hole, the valve structure includes a coil mounting part, the coil mounting part is inserted into the coil mounting part by fasteners and mounted in the second mounting hole; The second sealing structure is located outside the valve island and is arranged circumferentially around the second mounting hole; or The second sealing structure surrounds the fastener and is located between the inner walls of the fastener and the second mounting hole.

[0016] In some examples of this utility model, the valve body has a first valve cavity and a second valve cavity, and a valve port is provided between the first valve cavity and the second valve cavity. The valve flow channel includes the first valve cavity, the second valve cavity and the valve port. The valve body is provided with a first valve port communicating with the first valve cavity and a second valve port communicating with the second valve cavity. One end of the valve body is provided in the first mounting hole. The refrigerant flow path device also includes a first sealing ring, which is sleeved on the valve body and seals against the inner wall of the first mounting hole to separate the first valve port and the second valve port. At least one of the first valve port and the second valve port is in communication with the corresponding refrigerant flow channel.

[0017] In some examples of this utility model, the refrigerant flow path device further includes a second sealing ring, which is sleeved on the valve body and seals against the inner wall of the first mounting hole. The second sealing ring is located between the valve mounting part and the first valve port, and the first valve port is located between the first sealing ring and the second sealing ring.

[0018] In some examples of this utility model, the valve mounting component is threaded into the first mounting hole; and / or The valve island is made of cast iron; and / or The valve structure and valve mounting section are made of stainless steel; and / or The valve structure and valve mounting part are welded together, or the valve structure and valve mounting part are an integral piece; and / or The sealing ring structure is located above or diagonally above the mating clearance and / or the valve mounting portion.

[0019] The air conditioner according to an embodiment of the present invention includes the refrigerant flow path device described above.

[0020] 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

[0021] 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: Figure 1 This is a schematic diagram of a refrigerant flow path device according to an embodiment of the present utility model; Figure 2 This is an assembly diagram of the valve body, valve mounting part and valve island of the refrigerant flow path device according to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the valve body, valve mounting part, first sealing structure, second sealing structure, sealing ring structure and valve island assembly of the refrigerant flow path device according to an embodiment of the present utility model; Figure 4 yes Figure 3 Enlarged view of point A in the middle; Figure 5 This is an assembly diagram of the valve body and valve mounting part according to an embodiment of the present utility model; Figure 6 This is a side view of the valve body and valve mounting part after assembly according to an embodiment of the present utility model; Figure 7 This is a schematic diagram of the sealing ring structure according to an embodiment of the present utility model; Figure 8 This is a side view of the sealing ring structure according to an embodiment of the present utility model; Figure 9 This is a partial sectional view of the valve structure, valve mounting part, and valve island assembly according to an embodiment of the present utility model.

[0022] Figure label: Refrigerant flow path device 100; Valve island 10; First mounting hole 11; Second mounting hole 12; Refrigerant flow channel 13; Mounting end face 14; Valve structure 20; coil mounting part 21; third mounting hole 22; Valve body 23; First valve chamber 233; Second valve chamber 234; Valve port 235; First valve port 236; Second valve port 237; First sealing ring 238; Second sealing ring 239; Coil 24; Valve mounting part 30; mating clearance 31; valve mounting hole 32; assembly structure 33; First sealing structure 40; first connecting part 41; covering part 42; second connecting part 43; Second sealing structure 50; Fastener 60; 70; sealing ring structure; 71; shielding ring; 72; inner end; 73; outer end; 74; Heat exchanger 80; The first tube body 90; the second tube body 91; the third tube body 92. Detailed Implementation

[0023] 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.

[0024] The following is for reference. Figures 1-8 The present invention describes a refrigerant flow path device 100 according to an embodiment of the present invention. The refrigerant flow path device 100 is installed in an air conditioner and is used to supply refrigerant flow.

[0025] The refrigerant flow path device 100 according to an embodiment of the present invention includes: a valve island 10, the valve island 10 having a first mounting hole 11 and a refrigerant flow channel 13, the refrigerant flow channel 13 and the first mounting hole 11 communicating, the opening of the first mounting hole 11 being formed on a mounting end face 14 of the valve island 10; a valve structure 20 and a valve mounting part 30, the valve structure 20 including a valve body 23, the valve mounting part 30 having a valve mounting hole 32, the valve body 23 passing through the valve mounting hole 32 and fixedly connected to the valve mounting part 30, the valve mounting part 30 being assembled in the first mounting hole 11, a valve flow channel being formed inside the valve body 23, the valve flow channel and the refrigerant flow channel... The passage 13 is connected, and a fitting gap 31 is formed between the outer wall of the valve mounting part 30 and the inner wall of the first mounting hole 11; a sealing ring structure 70 is sleeved on the valve body 23, and at least a portion of the sealing ring structure 70 is located on the side of the valve mounting part 30 away from the valve island 10; the orthographic projection of the sealing ring structure 70 on the plane of the mounting end face 14 covers the orthographic projection of the connection or connection gap between the valve body 23 and the valve mounting hole 32 on the plane of the mounting end face 14; and / or the orthographic projection of the sealing ring structure 70 on the plane of the mounting end face 14 covers the orthographic projection of the fitting gap 31 on the plane of the mounting end face 14.

[0026] The first mounting hole 11 is a threaded hole. The valve body 23 is fixed to the valve mounting part 30. For example, the valve body 23 can be fixed to the valve mounting part 30 by welding, bolting, snap-fitting, etc. The valve mounting part 30 can be sleeved on the valve body 23 of the valve structure 20. The outer peripheral wall of the valve mounting part 30 can be formed with external threads. The external threads of the valve mounting part 30 and the internal threads of the first mounting hole 11 are engaged and connected, so that at least a part of the valve mounting part 30 can be assembled in the first mounting hole 11, and the valve mounting part 30 can be fixed to the valve island 10. Thus, the valve structure 20 can be fixed to the valve island 10 through the valve mounting part 30. After the valve structure 20 is installed in the valve island 10, the refrigerant flow channel 13 of the valve structure 20 and the valve island 10 are connected.

[0027] After the valve mounting part 30 is assembled into the first mounting hole 11, a fitting gap 31 is formed between the outer side wall of the valve mounting part 30 and the inner side wall of the first mounting hole 11. The fitting gap 31 is defined by the valve mounting part 30 and the valve island 10.

[0028] The sealing ring structure 70 is annular and is sleeved on the valve body 23. Part of the sealing ring structure 70 is located on the side of the valve mounting part 30 away from the valve island 10, or the entire structure of the sealing ring structure 70 is located on the side of the valve mounting part 30 away from the valve island 10.

[0029] As an example, along the axial direction of the valve body 23, the orthographic projection of the sealing ring structure 70 onto the plane containing the mounting end face 14 covers the orthographic projection of the connection between the valve body 23 and the valve mounting hole 32 onto the plane containing the mounting end face 14. As another example, along the axial direction of the valve body 23, the orthographic projection of the sealing ring structure 70 onto the plane containing the mounting end face 14 covers the orthographic projection of the connection gap between the valve body 23 and the valve mounting hole 32 onto the plane containing the mounting end face 14. As yet another example, along the axial direction of the valve body 23, the orthographic projection of the sealing ring structure 70 onto the plane containing the mounting end face 14 covers the orthographic projection of the mating clearance 31 onto the plane containing the mounting end face 14. As another example, along the axial direction of the valve body 23, the orthographic projection of the sealing ring structure 70 on the plane of the mounting end face 14 covers the orthographic projection of the connection between the valve body 23 and the valve mounting hole 32 on the plane of the mounting end face 14, and the orthographic projection of the sealing ring structure 70 on the plane of the mounting end face 14 covers the orthographic projection of the mating clearance 31 on the plane of the mounting end face 14. As another example, along the axial direction of the valve body 23, the orthographic projection of the sealing ring structure 70 on the plane of the mounting end face 14 covers the orthographic projection of the connection gap between the valve body 23 and the valve mounting hole 32 on the plane of the mounting end face 14, and the orthographic projection of the sealing ring structure 70 on the plane of the mounting end face 14 covers the orthographic projection of the mating clearance 31 on the plane of the mounting end face 14.

[0030] In the technical solution of this application, the orthogonal projection of the sealing ring structure 70 on the plane where the mounting end face 14 is located covers the orthogonal projection of the connection or connection gap between the valve body 23 and the valve mounting hole 32 on the plane where the mounting end face 14 is located. The sealing ring structure 70 can block moisture and reduce the flow of external moisture to the connection or connection gap between the valve body 23 and the valve mounting hole 32, thereby reducing the risk of corrosion of the valve body 23 and the valve mounting part 30. Furthermore, the orthogonal projection of the sealing ring structure 70 on the plane where the mounting end face 14 is located covers the orthogonal projection of the mating gap 31 on the plane where the mounting end face 14 is located, thereby reducing the risk of external moisture flowing into the first mounting hole 11 through the mating gap 31, which can reduce the risk of corrosion of the valve island 10. This is beneficial to improving the service life of the valve island 10, the valve structure 20 and the valve mounting part 30, thereby improving the service life of the refrigerant flow path device 100 and thus improving the reliability of the air conditioner.

[0031] In some embodiments of this utility model, the end of the sealing ring structure 70 facing the valve mounting portion 30 contacts the valve mounting portion 30.

[0032] Among them, such as Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the sealing ring structure 70 can be a sealant, sealing rubber, or other materials. The manufacturing material of the sealing ring structure 70 can be reasonably selected and set according to the actual situation, as long as the sealing ring structure 70 has a sealing function. This application does not make specific limitations. The sealing ring structure 70 is sleeved on the outside of the valve body 23, and the sealing ring structure 70 is located on the side of the valve mounting part 30 away from the valve island 10. The end of the sealing ring structure 70 facing the valve mounting part 30 is in contact with the surface of the valve mounting part 30 facing the sealing ring structure 70. This arrangement allows the sealing ring structure 70 to cover the connection or gap between the valve body 23 and the valve mounting part 30, reducing the risk of liquid flowing to the connection position between the valve body 23 and the valve mounting part 30, thereby reducing the risk of electrochemical corrosion at the welded position between the valve body 23 and the valve mounting part 30.

[0033] In some embodiments of this utility model, such as Figure 4 , Figure 7 and Figure 8 As shown, the sealing ring structure 70 includes: a sealing body 71, which is annular and sleeved on the valve body 23, and the end of the sealing body 71 facing the valve mounting part 30 contacts the valve mounting part 30, and the end of the sealing body 71 facing the valve mounting part 30 covers the connection or connection gap between the valve body 23 and the valve mounting hole 32.

[0034] The sealing ring structure 70 may include a sealing body 71, which is annular, or in other words, tubular. The sealing body 71 is sleeved on the valve body 23, and the valve body 23 passes through the sealing body 71. The end of the sealing body 71 facing the valve mounting portion 30 contacts the surface of the valve mounting portion 30 facing the sealing body 71, and the sealing body 71 covers the connection point or gap between the valve body 23 and the valve mounting hole 32. This effectively reduces electrochemical corrosion at the connection point between the valve body 23 and the valve mounting portion 30.

[0035] In some embodiments of this utility model, such as Figure 4 , Figure 7 and Figure 8 As shown, the sealing ring structure 70 includes: a sealing body 71 and a shielding ring 72. The sealing body 71 is annular and sleeved on the valve body 23. The shielding ring 72 surrounds the sealing body 71 and extends radially along the sealing body 71. The shielding ring 72 is located on one side of the mounting end face 14. The orthographic projection of the sealing body 71 and / or the shielding ring 72 onto the plane of the mounting end face 14 covers the projection of the connection or gap between the valve body 23 and the valve mounting hole 32 onto the plane of the mounting end face 14; and / or The orthographic projection of the shielding ring 72 onto the plane where the mounting end face 14 is located covers the orthographic projection of the mating gap 31 onto the plane where the mounting end face 14 is located.

[0036] The shielding ring 72 is annular and is sleeved on the sealing body 71. The shielding ring 72 extends radially along the sealing body 71. The inner end 73 of the shielding ring 72 facing the sealing body 71 is fixed to the sealing body 71 radially. The shielding ring 72 and the mounting end face 14 are arranged opposite to each other.

[0037] As an example, the orthographic projection of the sealing body 71 onto the plane of the mounting end face 14 covers the projection of the connection or joint gap between the valve body 23 and the valve mounting hole 32 onto the plane of the mounting end face 14. As another example, the orthographic projection of the shielding ring 72 onto the plane of the mounting end face 14 covers the projection of the connection or joint gap between the valve body 23 and the valve mounting hole 32 onto the plane of the mounting end face 14. As yet another example, the orthographic projection of the sealing body 71 onto the plane of the mounting end face 14 covers the projection of the connection or joint gap between the valve body 23 and the valve mounting hole 32 onto the plane of the mounting end face 14, and the orthographic projection of the shielding ring 72 onto the plane of the mounting end face 14 covers the projection of the connection or joint gap between the valve body 23 and the valve mounting hole 32 onto the plane of the mounting end face 14.

[0038] As another example, the orthographic projection of the shielding ring 72 onto the plane of the mounting end face 14 covers the orthographic projection of the mating gap 31 onto the plane of the mounting end face 14. As another example, the orthographic projection of the shielding ring 72 onto the plane of the mounting end face 14 covers the orthographic projection of the mating gap 31 onto the plane of the mounting end face 14, and the orthographic projection of the sealing body 71 onto the plane of the mounting end face 14 covers the projection of the connection or joint gap between the valve body 23 and the valve mounting hole 32 onto the plane of the mounting end face 14.

[0039] As another example, the orthographic projection of the shielding ring 72 on the plane where the mounting end face 14 is located covers the orthographic projection of the mating gap 31 on the plane where the mounting end face 14 is located, and the orthographic projection of the shielding ring 72 on the plane where the mounting end face 14 is located covers the projection of the connection or connection gap between the valve body 23 and the valve mounting hole 32 on the plane where the mounting end face 14 is located.

[0040] As another example, the orthographic projection of the shielding ring 72 on the plane where the mounting end face 14 is located covers the orthographic projection of the mating gap 31 on the plane where the mounting end face 14 is located, the orthographic projection of the sealing body 71 on the plane where the mounting end face 14 is located covers the projection of the connection or connection gap between the valve body 23 and the valve mounting hole 32 on the plane where the mounting end face 14 is located, and the orthographic projection of the shielding ring 72 on the plane where the mounting end face 14 is located covers the projection of the connection or connection gap between the valve body 23 and the valve mounting hole 32 on the plane where the mounting end face 14 is located.

[0041] In the above technical solution, by having at least one of the sealing body 71 and the shielding ring 72 project onto the plane of the mounting end face 14, the orthogonal projection of the sealing body 23 and the valve mounting hole 32 onto the plane of the mounting end face 14 covers the projection of the connection or connection gap between the valve body 23 and the valve mounting hole 32 onto the plane of the mounting end face 14. This can block moisture and reduce the flow of external moisture to the connection or connection gap between the valve body 23 and the valve mounting part 30, thereby reducing the risk of corrosion of the valve body 23 and the valve mounting part 30. By having the orthogonal projection of the shielding ring 72 onto the plane of the mounting end face 14 cover the orthogonal projection of the mating gap 31 onto the plane of the mounting end face 14, the risk of external moisture flowing into the first mounting hole 11 through the mating gap 31 can be reduced, thereby reducing the risk of corrosion of the valve island 10. This makes the specific structural setting of the sealing ring structure 70 reasonable and helps to simplify the structure of the sealing ring structure 70.

[0042] In some embodiments of this utility model, from the direction of the shielding ring 72 to the mounting end face 14, the shielding ring 72 extends obliquely away from the sealing body 71.

[0043] The shielding ring 72 is annular and is fitted onto the outer side of the sealing body 71. The inner end 73 of the shielding ring 72 facing the sealing body 71 is fixed to the sealing body 71. For example, the shielding ring 72 can be fixed to the sealing body 71 by adhesive bonding, snap-fitting, or other methods, thereby reducing the risk of separation between the shielding ring 72 and the sealing body 71 and improving the positional stability of the shielding ring 72. From the sealing ring structure 70 to the valve mounting portion 30, the shielding ring 72 extends obliquely away from the sealing body 71, making it resemble a trumpet-shaped structure. By obliquely arranging the shielding ring 72, the risk of liquid accumulation at the end of the sealing body 71 facing the valve mounting portion 30 is reduced, further reducing the risk of liquid flowing to the connection point between the valve body 23 and the valve mounting portion 30, thereby further reducing the risk of electrochemical corrosion at the welded position of the valve body 23 and the valve mounting portion 30.

[0044] In some embodiments of this utility model, the outer end 74 of the shielding ring 72, which is away from the sealing body 71, is spaced apart from or in contact with the valve mounting portion 30.

[0045] As an example, the outer end 74 of the shielding ring 72, which faces away from the sealing body 71, is spaced apart from the valve mounting portion 30. Specifically, the outer end 74 of the shielding ring 72, which faces away from the sealing body 71, is spaced apart from the valve body 23, and the outer end 74 of the shielding ring 72, which faces away from the sealing body 71, is also spaced apart from the valve mounting portion 30. The distance between the outer end 74 of the shielding ring 72 and the valve mounting portion 30 can be reasonably selected according to actual conditions. By separating the outer end 74 of the shielding ring 72 from the sealing body 71 and the valve mounting portion 30, the risk of interference between the shielding ring 72 and the valve mounting portion 30 is reduced, thereby reducing the risk of extrusion deformation of the shielding ring 72 and thus helping to extend the service life of the shielding ring 72.

[0046] As another example, the outer end 74 of the shielding ring 72, facing away from the sealing body 71, contacts the valve mounting portion 30. The outer end 74 of the shielding ring 72, spaced apart from the sealing body 71, and in contact with the valve mounting portion 30, facilitates the formation of a seal between the outer end 74 of the shielding ring 72 and the valve mounting portion 30. This covers the connection or gap between the valve body 23 and the valve mounting hole 32, further reducing the risk of liquid accumulation at the end of the sealing body 71 facing the valve mounting portion 30, and further reducing the risk of liquid flowing to the connection point between the valve body 23 and the valve mounting portion 30. This further reduces the risk of electrochemical corrosion at the welded joint between the valve body 23 and the valve mounting portion 30.

[0047] In some embodiments of this utility model, the sealing body 71 and the shielding ring 72 are integrally formed. This integral forming of the sealing body 71 and the shielding ring 72 facilitates the manufacturing of the sealing ring structure 70, improves the production efficiency of the sealing ring structure 70, and consequently improves the production efficiency of the refrigerant flow path device 100. Furthermore, it enhances the connection reliability between the sealing body 71 and the shielding ring 72, reducing the risk of separation between them.

[0048] In some embodiments of this utility model, such as Figure 4 As shown, the refrigerant flow path device 100 further includes: a first sealing structure 40, which surrounds the valve mounting portion 30 and is located within the mating gap 31, and is used to cover at least part of the mating gap 31.

[0049] The first sealing structure 40 can be a sealant, sealing rubber, or other similar material. The manufacturing material of the first sealing structure 40 can be reasonably selected and set according to the actual situation, as long as the first sealing structure 40 has a sealing function. This application does not make any specific limitations.

[0050] The first sealing structure 40 can be an annular structure, arranged circumferentially around the valve mounting portion 30. At least a portion of the first sealing structure 40 and the fitting clearance 31 are correspondingly arranged axially along the first mounting hole 11. At least a portion of the first sealing structure 40 is located within the fitting clearance 31, thereby covering at least a portion of the fitting clearance 31. The first sealing structure 40 can be fixedly connected to at least one of the valve island 10 and the valve mounting portion 30, thereby reducing the risk of the first sealing structure 40 falling off. By covering the fitting clearance 31 with the first sealing structure 40, the risk of external substances (e.g., moisture) flowing into the first mounting hole 11 through the fitting clearance 31 is reduced, which can reduce the risk of corrosion of the valve island 10, thereby reducing the risk of rusting of the valve island 10, which is beneficial to extending the service life of the valve island 10, thus extending the service life of the refrigerant flow path device 100, and further improving the reliability of the air conditioner.

[0051] In some embodiments of this utility model, such as Figure 2 and Figure 3 As shown, the fitting gap 31 is annular and extends circumferentially along the first mounting hole 11, and the first sealing structure 40 is annular and extends circumferentially along the first mounting hole 11. At least a portion of the first sealing structure 40 protrudes from the mounting end face 14; and / or The first sealing structure 40 covers one end of the mating gap 31 facing the outside of the valve island 10; and / or The orthographic projection of the first sealing structure 40 onto the plane where the mounting end face 14 is located covers the orthographic projection of the mating gap 31 onto the plane where the mounting end face 14 is located.

[0052] When the valve mounting part 30 is assembled into the first mounting hole 11, the valve mounting part 30 and the valve island 10 together define a closed-loop fitting gap 31. The fitting gap 31 is arranged around the valve mounting part 30 along its circumference. The first sealing structure 40 is a closed-loop structure and extends along the circumference of the first mounting hole 11. In other words, the first sealing structure 40 extends along the circumference of the valve mounting part 30. This arrangement allows the shape of the first sealing structure 40 to match the shape of the fitting gap 31, and allows the first sealing structure 40 to reliably cover the entire fitting gap 31 along its extension direction. This further reduces the risk of external moisture flowing into the first mounting hole 11 through the fitting gap 31, further reduces the risk of corrosion of the valve island 10, and is more conducive to improving the service life of the valve island 10. This, in turn, is more conducive to improving the service life of the refrigerant flow path device 100, and thus more conducive to improving the reliability of the air conditioner.

[0053] As an example, at least a portion of the first sealing structure 40 protrudes from the mounting end face 14, such that the mating gap 31 can be reliably sealed by the first sealing structure 40.

[0054] As another example, the first sealing structure 40 covers the end of the mating gap 31 facing the outside of the valve island 10, which allows the outer end of the mating gap 31 to be effectively sealed.

[0055] As another example, the orthographic projection of the first sealing structure 40 onto the plane where the mounting end face 14 is located covers the orthographic projection of the mating gap 31 onto the plane where the mounting end face 14 is located. This arrangement can achieve the sealing effect of the mating gap 31.

[0056] As another example, at least a portion of the first sealing structure 40 protrudes from the mounting end face 14, and the first sealing structure 40 covers the end of the mating gap 31 facing the outside of the valve island 10.

[0057] As another example, at least a portion of the structure of the first sealing structure 40 protrudes from the mounting end face 14, and the orthographic projection of the first sealing structure 40 onto the plane containing the mounting end face 14 covers the orthographic projection of the mating gap 31 onto the plane containing the mounting end face 14.

[0058] As another example, the first sealing structure 40 covers the end of the mating gap 31 facing the outside of the valve island 10, and the orthographic projection of the first sealing structure 40 on the plane where the mounting end face 14 is located covers the orthographic projection of the mating gap 31 on the plane where the mounting end face 14 is located.

[0059] As another example, at least a portion of the first sealing structure 40 protrudes from the mounting end face 14, the first sealing structure 40 covers the end of the mating gap 31 facing the outside of the valve island 10, and the orthographic projection of the first sealing structure 40 on the plane where the mounting end face 14 is located covers the orthographic projection of the mating gap 31 on the plane where the mounting end face 14 is located.

[0060] In some embodiments of this utility model, such as Figure 4 As shown, the first sealing structure 40 includes: a first connecting part 41, a covering part 42, and a second connecting part 43. The covering part 42 is connected between the first connecting part 41 and the second connecting part 43. The first connecting part 41 is connected to the valve mounting part 30, and the second connecting part 43 is connected to the valve island 10. The covering part 42 and the mating gap 31 correspond axially along the first mounting hole 11 to cover the mating gap 31.

[0061] The first sealing structure 40 may include a first connecting portion 41, a covering portion 42, and a second connecting portion 43. All three portions are annular structures, extending circumferentially along the first mounting hole 11. The covering portion 42 connects between the first connecting portion 41 and the second connecting portion 43 radially along the first mounting hole 11. These portions can be integrally formed to reduce the risk of separation between the covering portion 42 and the first and second connecting portions 41 and 43. At least a portion of the first connecting portion 41 and the valve mounting portion 30 are axially opposite to each other along the first mounting hole 11. For example, the first connecting portion 41 can be fixed to the valve mounting portion 30 by bonding, snap-fitting, or other methods. At least a portion of the second connecting portion 43 and the valve island 10 are axially opposite to each other along the first mounting hole 11. For example, the second connecting portion 43 can be fixed to the valve island 10 by bonding, snap-fitting, or other methods. The covering portion 42 and the mating gap 31 are arranged axially correspondingly along the first mounting hole 11 so that the covering portion 42 covers the mating gap 31. By connecting the first connecting portion 41 to the valve mounting portion 30 and the second connecting portion 43 to the valve island 10, the first sealing structure 40 can be reliably fixed to the valve mounting portion 30 and the valve island 10, reducing the risk of separation between the first sealing structure 40 and the valve mounting portion 30 and the valve island 10, thereby ensuring that the covering portion 42 reliably covers the mating gap 31.

[0062] In some embodiments of this utility model, such as Figures 1-4 As shown, the refrigerant flow path device 100 also includes: a second sealing structure 50, the valve island 10 is further formed with a second mounting hole 12, and the valve structure 20 includes a coil mounting part 21, which is installed in the second mounting hole 12 by fasteners 60 passing through the coil mounting part 21. The second sealing structure 50 is disposed outside the valve island 10 and is arranged around the second mounting hole 12 in the circumferential direction; or the second sealing structure 50 surrounds the fastener 60 and is located between the inner wall of the fastener 60 and the second mounting hole 12.

[0063] The refrigerant flow path device 100 may further include a second sealing structure 50. The second sealing structure 50 may be a sealant, sealing rubber, or other structure. The manufacturing material of the second sealing structure 50 may be reasonably selected and set according to the actual situation, as long as the second sealing structure 50 has a sealing function. This application does not make specific limitations.

[0064] The valve island 10 also has a second mounting hole 12, which can be a threaded hole. The second sealing structure 50 can be an annular structure and can be fixed to the valve island 10. For example, the second sealing structure 50 can be fixed to the valve island 10 by means of adhesive, snap-fit, etc., reducing the risk of the second sealing structure 50 falling off the valve island 10. The valve structure 20 can include a coil 24 and a coil mounting portion 21, which are fixedly connected. The fastener 60 can be a bolt or a screw. As an example, the coil mounting portion 21 is located on the side of the second sealing structure 50 away from the valve island 10, the coil mounting portion 21 is in contact with the second sealing structure 50, the fastener 60 passes through the coil mounting portion 21 and the second sealing structure 50, and the fastener 60 is installed in the second mounting hole 12, thereby fixing the coil mounting portion 21 to the valve island 10, and thus fixing the position of the coil 24.

[0065] As an example, the second sealing structure 50 is disposed outside the valve island 10 and is arranged circumferentially around the second mounting hole 12. As another example, the second sealing structure 50 surrounds the fastener 60 and is located between the inner walls of the fastener 60 and the second mounting hole 12.

[0066] It should be noted that the fastener 60 is assembled into the second mounting hole 12, and the fastener 60 is screwed to the valve island 10. During the process of screwing the fastener 60 into or out of the second mounting hole 12, the anti-corrosion layer (e.g., anti-corrosion paint layer) at the second mounting hole 12 is easily damaged. Therefore, by setting the second sealing structure 50, the second sealing structure 50 can seal the gap between the coil mounting part 21 and the valve island 10, so that the second mounting hole 12 is effectively sealed, reducing the risk of external substances (e.g., moisture) flowing into the second mounting hole 12, which can further reduce the risk of corrosion of the valve island 10, thereby further reducing the risk of rusting of the valve island 10, which is more conducive to improving the service life of the valve island 10, which is more conducive to improving the service life of the refrigerant flow path device 100, and thus more conducive to improving the reliability of the air conditioner.

[0067] In some embodiments of this utility model, such as Figures 1-4As shown, the coil mounting portion 21 has a third mounting hole 22, which is disposed opposite to the second mounting hole 12. The second sealing structure 50 passes through the third mounting hole 22 and is used for the fastener 60 to pass through.

[0068] The coil mounting portion 21 has a third mounting hole 22 that penetrates the coil mounting portion 21. The third mounting hole 22 is positioned opposite to the second mounting hole 12, and the diameter of the third mounting hole 22 can be larger than the diameter of the second mounting hole 12. The second sealing structure 50 passes through the third mounting hole 22, and its outer peripheral wall contacts the inner wall of the third mounting hole 22. The fastener 60 passes through the second sealing structure 50 and is installed in the second mounting hole 12. When the fastener 60 is tightened, the second sealing structure 50 is compressed, thereby effectively sealing the second sealing structure 50.

[0069] In some embodiments of this utility model, at least one of the first sealing structure 40 and the second sealing structure 50 is a sealant.

[0070] In this embodiment, one of the first sealing structure 40 and the second sealing structure 50 is a sealant, or both the first sealing structure 40 and the second sealing structure 50 are sealants. This application uses the example of both the first sealing structure 40 and the second sealing structure 50 being made of sealant. By making both the first sealing structure 40 and the second sealing structure 50 into sealants, the first sealing structure 40 can be bonded to the valve island 10 and the valve mounting part 30, facilitating the fixed assembly of the first sealing structure 40 with the valve island 10 and the valve mounting part 30. Similarly, the second sealing structure 50 can be bonded to the valve island 10, facilitating the fixed assembly of the second sealing structure 50 with the valve island 10. This improves the assembly efficiency of the refrigerant flow path device 100. Furthermore, sealant is easy to manufacture, reducing the manufacturing cost of the refrigerant flow path device 100.

[0071] In some embodiments of this utility model, the valve structure 20 includes a valve body 23, the valve mounting part 30 has a valve mounting hole 32, the valve body 23 passes through the valve mounting hole 32, the valve body 23 extends into the valve island 10 so that the valve structure 20 and the valve island 10 are connected, and the valve body 23 is fixed to the valve mounting part 30.

[0072] Among them, such as Figure 1 , Figure 2 and Figure 5As shown, the valve mounting portion 30 has a valve mounting hole 32 that penetrates the valve mounting portion 30. The valve body 23 passes through the valve mounting hole 32, and its outer peripheral wall can contact the inner side wall of the valve mounting hole 32. The valve body 23 is fixed to the valve mounting portion 30. Exemplarily, the valve body 23 is fixed to the valve mounting portion 30 by welding, screwing, or snapping. This application uses welding of the valve body 23 and the valve mounting portion 30 as an example. By fixing the valve body 23 to the valve mounting portion 30, the valve body 23 and the valve mounting portion 30 can be fixed, and the valve body 23 can be fixed to the valve island 10, thereby improving the positional stability of the valve body 23. The valve body 23 has a first valve port 236 and a second valve port 237, which are connected. After the valve mounting portion 30 is fixed to the valve island 10 and assembled in place, the first valve port 236 and the second valve port 237 are located inside the valve island 10, thereby connecting the valve structure 20 and the valve island 10.

[0073] In some embodiments of this utility model, along the axial direction of the first mounting hole 11, an assembly structure 33 is formed on the side of the valve mounting part 30 away from the valve island 10. The assembly structure 33 is used to cooperate with the mating parts to assemble the valve mounting part 30 onto the valve island 10.

[0074] Along the axial direction of the first mounting hole 11, an assembly structure 33 is formed on the side of the valve mounting part 30 away from the valve island 10. During the assembly process of the valve mounting part 30 into the first mounting hole 11, the assembly structure 33 is assembled with the mating parts, and the valve mounting part 30 is assembled into the first mounting hole 11 through the mating parts, thereby assembling the valve mounting part 30 into the valve island 10.

[0075] For example, the valve mounting part 30 and the valve island 10 are threadedly connected. By turning the valve mounting part 30, the valve mounting part 30 is assembled into the first mounting hole 11. During the assembly of the valve mounting part 30 into the first mounting hole 11, the assembly structure 33 is assembled with the mating part. By turning the valve mounting part 30 with the mating part, the valve mounting part 30 is assembled into the first mounting hole 11. During the removal of the valve mounting part 30, the assembly structure 33 is assembled with the mating part. By turning the valve mounting part 30 with the mating part, the valve mounting part 30 is removed from the first mounting hole 11.

[0076] In some embodiments of this utility model, such as Figure 2 and Figure 6 As shown, assembly structure 33 is an assembly hole or assembly groove.

[0077] As one example, the assembly structure 33 is configured as an assembly hole, which penetrates the valve mounting portion 30. As another example, the assembly structure 33 is configured as an assembly groove, which is recessed into the valve mounting portion 30. This application uses the assembly structure 33 as an example of an assembly hole for explanation. During the assembly and disassembly of the valve mounting portion 30, a mating part is inserted into the assembly hole, which drives the valve mounting portion 30 to rotate, thereby realizing the assembly and disassembly of the valve mounting portion 30. Furthermore, configuring the assembly structure 33 as an assembly hole or an assembly groove helps reduce the weight of the valve mounting portion 30, thus facilitating the lightweight design of the refrigerant flow path device 100.

[0078] In some embodiments of this utility model, such as Figure 9 As shown, the valve body 23 has a first valve cavity 233 and a second valve cavity 234. A valve port 235 is provided between the first valve cavity 233 and the second valve cavity 234. The valve flow channel includes the first valve cavity 233, the second valve cavity 234 and the valve port 235. The valve body 23 is provided with a first valve port 236 communicating with the first valve cavity 233 and a second valve port 237 communicating with the second valve cavity 234. One end of the valve body 23 is located in the first mounting hole 11. The refrigerant flow path device 100 also includes a first sealing ring 238. The first sealing ring 238 is sleeved on the outside of the valve body 23 and seals against the inner wall of the first mounting hole 11 to separate the first valve port 236 and the second valve port 237. At least one of the first valve port 236 and the second valve port 237 is connected to the corresponding refrigerant flow channel 13.

[0079] It is understood that the specific type of valve structure 20 is not limited. For example, for a single valve structure 20, the valve structure 20 can be a throttle valve, a check valve, a reversing valve, a flow regulating valve, a pressure regulating valve, or a switching valve. There can be one or more valve structures 20 on the valve island 10. When there are multiple valve structures 20, the types of the multiple valve structures 20 can be the same or different. Only the valve structure 20 of this application can be installed on the valve island 10, or the valve island 10 can not only install the valve structure 20 of this application, but also other structures, such as economizers, filters, etc.

[0080] The valve port 235 is located between the first valve chamber 233 and the second valve chamber 234. That is, the refrigerant in the first valve chamber 233 needs to flow to the second valve chamber 234 through the valve port 235, or the refrigerant in the second valve chamber 234 needs to flow to the first valve chamber 233 through the valve port 235. When the valve structure 20 of this application is a throttle valve, the valve port 235 can throttle the refrigerant flowing through it. Or when the valve structure 20 of this application is a switch valve, the valve port 235 can cooperate with the valve core of the valve structure 20 to control the opening and closing between the first valve chamber 233 and the second valve chamber 234.

[0081] As can be seen, a first mounting hole 11 is formed on the valve island 10, and the valve body 23 is disposed in the corresponding first mounting hole 11, so that at least a portion of the valve body 23 is located in the first mounting hole 11; the first mounting hole 11 is connected to at least one refrigerant flow channel 13, and at least one of the first valve port 236 and the second valve port 237 is connected to the corresponding refrigerant flow channel 13. For example, the first mounting hole 11 is connected to two refrigerant flow channels 13 respectively, the first valve port 236 is connected to one refrigerant flow channel 13, and the second valve port 237 is connected to the other refrigerant flow channel 13. Or, for example, the first mounting hole 11 is connected to one refrigerant flow channel 13, one of the first valve port 236 and the second valve port 237 is connected to the refrigerant flow channel 13, and the other of the first valve port 236 and the second valve port 237 is connected to other components.

[0082] Therefore, the refrigerant flow channel 13, which communicates with the valve structure 20, can be integrated with the valve structure 20, realizing the integrated arrangement of the valve structure 20 and the valve island 10. This makes the refrigerant flow path device 100 more compact and facilitates the miniaturization and centralized arrangement of components. Simultaneously, the valve port of the valve structure 20 can be directly connected to the refrigerant flow channel 13 within the valve island 10. The valve structure 20 does not need to be connected to the refrigerant flow channel 13 within the valve island 10 via external piping, reducing the use of traditional piping and facilitating further improvement in the integration of the refrigerant flow path device 100, making its structure more compact. To reduce interference with other structures within the air conditioning system, this design helps to miniaturize the overall structure of the air conditioning system, facilitating its installation in limited spaces. It also reduces material and labor costs associated with traditional piping schemes. Furthermore, by reducing the use of traditional piping, the overall length of the flow channels within the air conditioning system can be reduced, improving the refrigerant charge and flow resistance, thus enhancing the system's performance. The integrated design also increases production efficiency, reduces time and resource consumption during production, and further lowers manufacturing costs.

[0083] Furthermore, the first sealing ring 238 seals against the wall of the first mounting hole 11 to separate the first valve port 236 and the second valve port 237. This prevents refrigerant at the first valve port 236 from leaking through the gap between the valve body 23 and the wall of the first mounting hole 11 to the second valve port 237, and vice versa. This ensures that refrigerant flowing from the first valve chamber 233 to the second valve chamber 234 must pass through the valve port 235, or refrigerant flowing from the second valve chamber 234 to the first valve chamber 233 must pass through the valve port 235. This improves the problem of refrigerant cross-flow before and after the valve port 235, allowing the valve structure 20 to maintain stable operation and improving the reliability of the refrigerant flow path device 100.

[0084] For example, the first sealing ring 238 can directly contact the wall of the first mounting hole 11 for sealing, or the first sealing ring 238 can indirectly seal with the wall of the first mounting hole 11 through other components.

[0085] In some embodiments of this utility model, such as Figure 9 As shown, the refrigerant flow path device 100 also includes a second sealing ring 239. The second sealing ring 239 is sleeved on the outside of the valve body 23 and seals against the inner wall of the first mounting hole 11. The second sealing ring 239 is located between the valve mounting part 30 and the first valve port 236. The first valve port 236 is located between the first sealing ring 238 and the second sealing ring 239.

[0086] Along the axial direction of the first mounting hole 11, the second sealing ring 239 is located between the valve mounting portion 30 and the first valve port 236 to separate the first valve port 236 from the opening of the first mounting hole 11. The first valve port 236 is located between the first sealing ring 238 and the second sealing ring 239. Exemplarily, the first valve port 236 is disposed axially closer to the valve mounting portion 30 than the second valve port 237.

[0087] As can be seen, by setting the second sealing ring 239, even if there is a certain gap between the valve mounting part 30 and the hole wall of the first mounting hole 11, which may allow refrigerant to leak from the gap between the valve mounting part 30 and the hole wall of the first mounting hole 11 to the outside of the valve island 10, the second sealing ring 239 can block the refrigerant at the first valve port 236 from flowing to the port of the first mounting hole 11, thereby reducing the possibility of refrigerant leakage to the outside of the valve island 10 and making it less likely to affect the normal operation of other components. Therefore, the connection method between the valve mounting part 30 and the hole wall of the first mounting hole 11 is also somewhat selective due to the setting of the second sealing ring 239. In other words, due to the setting of the second sealing ring 239, the sealing requirements that can be achieved by the connection method between the valve mounting part 30 and the hole wall of the first mounting hole 11 can be appropriately reduced. At the same time, in conjunction with the setting of the first sealing ring 238, the refrigerant flow direction in the valve structure 20 is made clearer, which is conducive to improving the working effect of the valve structure 20 and improving the reliability of the refrigerant flow path device 100.

[0088] In some embodiments of this utility model, the valve mounting part 30 is threadedly engaged with the first mounting hole 11; and / or Valve island 10 is made of cast iron; and / or The valve structure 20 and the valve mounting part 30 are made of stainless steel; and / or The valve structure 20 and the valve mounting part 30 are welded together, or the valve structure 20 and the valve mounting part 30 are an integral piece; and / or The sealing ring structure 70 is located above or diagonally above the mating clearance 31 and / or the valve mounting portion 30.

[0089] As an example, the valve mounting part 30 is threadedly engaged with the first mounting hole 11. The outer peripheral wall of the valve mounting part 30 has an external thread, and the first mounting hole 11 has an internal thread. The valve mounting part 30 is assembled into the first mounting hole 11, and the external thread and the internal thread engage, thereby enabling the valve mounting part 30 to be threadedly engaged with the first mounting hole 11. This arrangement enables a detachable connection between the valve mounting part 30 and the valve island 10.

[0090] As another example, valve island 10 is made of cast iron, which is low in cost and has good machinability, thus it can be well processed to handle the machining of the internal flow channels and openings in valve island 10.

[0091] As another example, the valve structure 20 and the valve mounting part 30 are made of stainless steel, which has good corrosion resistance and high strength, thus improving the corrosion resistance of the valve structure 20 and the valve mounting part 30.

[0092] As another example, the valve structure 20 and the valve mounting part 30 are welded together, which helps to improve the connection reliability of the valve structure 20 and the valve mounting part 30 and reduce the risk of separation of the valve structure 20 and the valve mounting part 30.

[0093] As another example, the valve structure 20 and the valve mounting part 30 are integrated parts, which can also be understood as the valve structure 20 and the valve mounting part 30 being integrally molded parts. This helps to reduce the number of parts that make up the refrigerant flow path device 100 and improves the assembly efficiency of the refrigerant flow path device 100.

[0094] As another example, the sealing ring structure 70 is located in the mating gap 31. As another example, the sealing ring structure 70 is located above or diagonally above the mounting portion 30. As another example, the sealing ring structure 70 is located in the mating gap 31, and the sealing ring structure 70 is located above or diagonally above the mounting portion 30. This arrangement prevents condensate from dripping into the mating gap 31 or the connection or joint between the valve body 23 and the valve mounting hole 32.

[0095] In some embodiments of this utility model, such as Figures 1-3 As shown, the refrigerant flow path device 100 may further include: a heat exchanger 80, a valve island 10 fixed to the heat exchanger 80, and the valve island 10 and the heat exchanger 80 connected, so that the refrigerant flows into the heat exchanger 80 through the valve island 10.

[0096] In some embodiments of this utility model, such as Figures 1-3 As shown, the refrigerant flow path device 100 may further include: a first pipe body 90, which is connected to the valve island 10, so that the refrigerant flows into the valve island 10 through the first pipe body 90.

[0097] In some embodiments of this utility model, such as Figures 1-3As shown, the refrigerant flow path device 100 may further include: a second tube 91 and a third tube 92, the heat exchanger 80 having a heat exchange channel, the second tube 91 being connected to the inlet of the heat exchange channel, and the third tube 92 being connected to the outlet of the heat exchange channel, thereby allowing the heat exchange medium to flow into and out of the heat exchanger 80.

[0098] In some embodiments of this utility model, the valve island 10 is first connected to the heat exchanger 80. The valve island 10 is provided with an anti-corrosion layer (e.g., anti-corrosion paint) on all surfaces. Then, the valve structure 20 is fixed to the tooling (i.e. the mating part in the above embodiment) through the valve mounting part 30. The valve body 23 is installed on the valve island 10 by using the external thread of the valve mounting part 30 to engage with the thread corresponding to the first mounting hole 11.

[0099] The air conditioner according to an embodiment of the present invention includes the refrigerant flow path device 100 described in the above embodiment. This reduces the risk of corrosion of the valve island 10, which helps extend the service life of the valve island 10, thereby extending the service life of the refrigerant flow path device 100, and ultimately improving the reliability of the air conditioner.

[0100] 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.

[0101] 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.

[0102] 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 refrigerant flow path device, characterized in that, include: A valve island, wherein a first mounting hole and a refrigerant flow channel are formed, the refrigerant flow channel and the first mounting hole are connected, and the opening of the first mounting hole is formed on a mounting end face of the valve island; A valve structure and a valve mounting part, wherein the valve structure includes a valve body, the valve mounting part has a valve mounting hole, the valve body passes through the valve mounting hole and is fixedly connected to the valve mounting part, the valve mounting part is assembled in the first mounting hole, a valve flow channel is formed in the valve body, the valve flow channel is connected to the refrigerant flow channel, and a fitting clearance is formed between the outer side wall of the valve mounting part and the inner side wall of the first mounting hole; A sealing ring structure is sleeved on the valve body, and at least a portion of the sealing ring structure is located on the side of the valve mounting portion away from the valve island; The orthographic projection of the sealing ring structure onto the plane containing the mounting end face covers the orthographic projection of the connection point or gap between the valve body and the valve mounting hole onto the plane containing the mounting end face; and / or The orthographic projection of the sealing ring structure onto the plane where the mounting end face is located covers the orthographic projection of the mating clearance onto the plane where the mounting end face is located.

2. The refrigerant flow path device according to claim 1, characterized in that, The sealing ring structure includes: a sealing body, which is annular and sleeved on the valve body, the end of the sealing body facing the valve mounting part contacts the valve mounting part, and the end of the sealing body facing the valve mounting part covers the connection between the valve body and the valve mounting hole or the connection gap.

3. The refrigerant flow path device according to claim 1, characterized in that, The sealing ring structure includes a sealing body and a shielding ring. The sealing body is annular and sleeved on the valve body. The shielding ring surrounds the sealing body and extends radially along the sealing body. The shielding ring is located on one side of the mounting end face. The orthographic projection of the sealing body and / or the shielding ring onto the plane where the mounting end face is located covers the projection of the connection between the valve body and the valve mounting hole or the connection gap onto the plane where the mounting end face is located; and / or The orthographic projection of the shielding ring onto the plane containing the mounting end face covers the orthographic projection of the mating gap onto the plane containing the mounting end face.

4. The refrigerant flow path device according to claim 3, characterized in that, From the direction of the shielding ring to the mounting end face, the shielding ring extends obliquely away from the sealing body.

5. The refrigerant flow path device according to claim 3, characterized in that, The outer end of the shielding ring, which is away from the sealing body, is spaced apart from or in contact with the valve mounting portion.

6. The refrigerant flow path device according to claim 3, characterized in that, The sealing body and the shielding ring are an integral structure.

7. The refrigerant flow path device according to any one of claims 1-6, characterized in that, Also includes: A first sealing structure surrounds the valve mounting portion and is located within the mating gap, the first sealing structure being used to cover at least a portion of the mating gap.

8. The refrigerant flow path device according to claim 7, characterized in that, The fitting gap is annular and extends circumferentially along the first mounting hole, and the first sealing structure is annular and extends circumferentially along the first mounting hole. At least a portion of the first sealing structure protrudes from the mounting end face; and / or The first sealing structure covers the end of the mating clearance facing the outside of the valve island; and / or The orthographic projection of the first sealing structure onto the plane containing the mounting end face covers the orthographic projection of the mating clearance onto the plane containing the mounting end face.

9. The refrigerant flow path device according to claim 7, characterized in that, The first sealing structure includes: a first connecting part, a covering part, and a second connecting part. The covering part is connected between the first connecting part and the second connecting part. The first connecting part is connected to the valve mounting part, and the second connecting part is connected to the valve island. The covering part and the mating gap correspond axially along the first mounting hole to cover the mating gap.

10. The refrigerant flow path device according to any one of claims 1-6, characterized in that, The refrigerant flow path device further includes: a second sealing structure, the valve island also has a second mounting hole, the valve structure includes a coil mounting part, the coil mounting part is fastened through the coil mounting part and mounted in the second mounting hole; The second sealing structure is disposed outside the valve island and is arranged circumferentially around the second mounting hole; or The second sealing structure surrounds the fastener and is located between the fastener and the inner wall of the second mounting hole.

11. The refrigerant flow path device according to any one of claims 1-6, characterized in that, The valve body has a first valve chamber and a second valve chamber, and a valve port is provided between the first valve chamber and the second valve chamber. The valve flow channel includes the first valve chamber, the second valve chamber and the valve port. The valve body is provided with a first valve port communicating with the first valve chamber and a second valve port communicating with the second valve chamber. One end of the valve body is located in the first mounting hole. The refrigerant flow path device also includes a first sealing ring, which is sleeved on the valve body and seals against the inner wall of the first mounting hole to separate the first valve port and the second valve port. At least one of the first valve port and the second valve port communicates with the corresponding refrigerant flow channel.

12. The refrigerant flow path device according to claim 11, characterized in that, The refrigerant flow path device further includes a second sealing ring, which is sleeved on the valve body and seals against the inner wall of the first mounting hole. The second sealing ring is located between the valve mounting part and the first valve port, and the first valve port is located between the first sealing ring and the second sealing ring.

13. The refrigerant flow path device according to any one of claims 1-6, characterized in that, The valve mounting component is threaded into the first mounting hole; and / or The valve island is made of cast iron; and / or The valve structure and the valve mounting part are made of stainless steel; and / or The valve structure and the valve mounting part are welded together, or the valve structure and the valve mounting part are an integral part; and / or The sealing ring structure is located above or diagonally above the mating gap and / or the valve mounting portion.

14. An air conditioner, characterized in that, Includes a refrigerant flow path device according to any one of claims 1-13.

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