Sealing ring, connector, and heating, ventilation and air-conditioning system

Abstract

Disclosed are a sealing ring, a connector, and a heating, ventilation and air-conditioning system. The sealing ring (17) is used in the connector (10), a material relief groove (173) is formed in the sealing ring, and the material relief groove is formed in the circumferential direction of the sealing ring. By forming the material relief groove in the sealing ring, the mass of the sealing ring can be reduced, thereby reducing the compression amount of the sealing ring, ensuring the sealing performance of the sealing ring between the connector and a compressor, and mitigating the problem in the related art that when only one side of the connector is connected to the compressor, the connector lifts on the side opposite to the side fixed to the compressor.

Description

Seals, connectors and HVAC systems

[0001] Related applications:

[0002] This application claims priority to the Chinese patent applications filed with the Patent Office of China on February 7, 2024, with application number 2024202895424, titled “Sealing ring, connector and HVAC system”; application number 2024202895551, titled “Connector and HVAC system”; application number 2024202895091, titled “Fixed structure and HVAC system”; application number 2024202895157, titled “Connector and HVAC system”; and application number 2024202895195, titled “Connector and HVAC system”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the technical field of compressor equipment, and in particular to a sealing ring, a connector and a heating and ventilation system. Background Art

[0004] When the compressor is powered on for testing or installed in an air conditioner, a connector is required to connect external wires to the terminals on the compressor to supply power to the compressor. Specifically, the terminals of the connector need to be connected to the terminals on the compressor.

[0005] In the related art, after the terminals of the connector are connected to the terminals on the compressor, in order to fix the compressor and the connector, the compressor and the connector are usually fixed on one side of the connector through a connecting piece. However, this fixing method easily causes the connector to warp on the side opposite to the compressor. Summary of the Invention

[0006] The embodiments of the present application provide a sealing ring, a connector and a HVAC system, which are used to improve the problem in the related art that the compressor and the connector are fixed by a connecting piece on one side of the connector, which easily causes the connector to warp on the opposite side where it is fixed to the compressor.

[0007] In a first aspect, an embodiment of the present application provides a sealing ring, which is used in a connector. The sealing ring is provided with a material reduction opening, and the material reduction opening is arranged around the circumference of the sealing ring.

[0008] In a second aspect, an embodiment of the present application provides a connector, which includes a sealing ring and a shell. The sealing ring is provided with a material reduction port, which is arranged around the circumference of the sealing ring, and at least part of the sealing ring protrudes from the shell.

[0009] In a third aspect, an embodiment of the present application provides a HVAC system, which includes a connector and a compressor, wherein the connector is electrically connected to the compressor, and the connector includes an outer shell and a sealing ring, wherein the sealing ring is arranged on the outer shell, and the sealing ring is provided with a material reduction port, wherein the material reduction port is arranged around the circumference of the sealing ring, and at least part of the sealing ring protrudes from the outer shell.

[0010] The sealing ring, connector and HVAC system of the embodiments of the present application can reduce the mass of the sealing ring by providing a material reduction port on the sealing ring, thereby reducing the compression amount of the sealing ring. In this way, when the sealing ring is used in the connector and used to seal the connector and the compressor, the sealing ring of the embodiment of the present application will have a smaller rebound force when squeezed than the complete sealing ring in the related art, so that even if the connector is only connected to the compressor on one side, it is not easy to cause the sealing ring on the opposite side to be easily warped, which can ensure the sealing performance of the sealing ring between the connector and the compressor, and improve the problem of the connector being connected to the compressor on only one side in the related art, which causes the connector to be warped on the opposite side where it is fixed to the compressor. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0012] FIG1 is a schematic structural diagram of a first sealing ring provided in Example 1 of the present application;

[0013] FIG2 is a schematic cross-sectional view of the sealing ring shown in FIG1 ;

[0014] FIG3 is an enlarged partial cross-sectional view of the second sealing ring provided in Example 1 of the present application;

[0015] FIG4 is an enlarged partial cross-sectional view of a third sealing ring provided in Example 1 of the present application;

[0016] FIG5 is a cross-sectional schematic diagram of the assembly of the sealing ring and the connector shown in FIG1 ;

[0017] FIG6 is a schematic diagram of the exploded structure of the connector shown in FIG5 ;

[0018] FIG7 is a schematic diagram of the assembly of the sealing ring, connector and compressor shown in FIG5 ;

[0019] FIG8 is a schematic cross-sectional view taken along the AA direction in FIG7 ;

[0020] FIG9 is a schematic diagram of a partial structure of a HVAC system provided in Example 2 of the present application;

[0021] FIG10 is a schematic cross-sectional view of the HVAC system shown in FIG1 ;

[0022] FIG11 is a schematic structural diagram of a compressor provided in Example 2 of the present application;

[0023] FIG12 is a schematic cross-sectional view of the structure along the BB direction in FIG11;

[0024] FIG13 is a schematic diagram of a partial structure of a compressor provided in Example 2 of the present application;

[0025] FIG14 is a schematic cross-sectional view of the HVAC system provided in Example 2 of the present application;

[0026] FIG15 is a schematic top view of the connector provided in Example 3 of the present application;

[0027] FIG16 is a schematic cross-sectional view taken along the CC direction in FIG15 ;

[0028] FIG17 is an exploded schematic diagram of FIG16;

[0029] FIG18 is a schematic front view of a connector provided in Example 3 of the present application;

[0030] FIG19 is a schematic cross-sectional view taken along the DD direction in FIG18 ;

[0031] FIG20 is a bottom view of FIG18;

[0032] FIG21 is a schematic diagram of the exploded structure of the connector provided in Example 3 of the present application;

[0033] FIG22 is a schematic diagram of a partial structure of a HVAC system provided in Example 3 of the present application;

[0034] FIG23 is a schematic cross-sectional view taken along the EE direction in FIG22 ;

[0035] FIG24 is a schematic diagram of a partial structure of a compressor in the HVAC system shown in FIG22 ;

[0036] FIG25 is a bottom view of the connector provided in Example 4 of the present application;

[0037] FIG26 is a partial enlarged schematic diagram of area A in FIG25 ;

[0038] FIG27 is a schematic cross-sectional view of the connector shown in FIG25;

[0039] FIG28 is a partial enlarged schematic diagram of area B in FIG27;

[0040] FIG29 is a schematic diagram of the exploded structure of the connector shown in FIG25;

[0041] FIG30 is a schematic diagram of the assembly of the connector and the compressor shown in FIG25;

[0042] FIG31 is a cross-sectional schematic diagram taken along the FF direction in FIG30 ;

[0043] FIG32 is a schematic diagram of a partial cross-sectional structure of a HVAC system provided in Example 5 of the present application;

[0044] FIG33 is a schematic cross-sectional view of a fixed structure in the HVAC system shown in FIG32 ;

[0045] FIG34 is a schematic diagram of a partial cross-sectional structure of another HVAC system provided in Example 5 of the present application;

[0046] FIG35 is a schematic cross-sectional view of the fixed structure in the HVAC system shown in FIG34 ;

[0047] FIG36 is a partial schematic diagram of a top view of a connector in a HVAC system provided in another embodiment of the present application;

[0048] Figure 37 is a schematic diagram of the partial structure of a connector and a compressor in another HVAC system provided in Example 5 of the present application.

[0049] DESCRIPTION OF NUMERALS AND SIGNS: 10. Connector; 11. Housing; 111. First Housing Portion; 1111. First Port; 1112. Slot; 1113. Annular Groove; 11131. Inner Wall; 11132. Outer Wall; 11133. Notch; 1114. Second Port; 1115. Notch; 1116. Limiting Groove; 1117. First Chamber; 1118. Second Chamber; 1119. Bottom Wall; 112. Second Housing Portion; 1121. Hook; 113. First End Surface; 1131. Middle Area; 114. Second End Surface; 116. Through Hole; 117. Wire Passing Hole; 118. Second Accommodating Interval; 12. Connector Terminal; 13. Connecting Sleeve; 131. Connecting Surface; 14. Cover Plate; 141. Limiting Protrusion; 142. Appearance Surface; 143. Pressing Portion; 15. Connecting line; 161. First sealing member; 162. Second sealing member; 17. Sealing ring; 171. First portion; 172. Second portion; 173. Material reduction port; 1731. Inclined surface; 1732. Connecting surface; 174. First side surface; 175. Second side surface; 176. Inner side surface; 177. Outer side surface; 178. Sealing surface; 18. Third sealing member; 19. Raised rib; 191. Guide surface; 20. Compressor; 21. Compressor terminal; 22. Connecting member; 23. Terminal seat; 24. Second connecting member; 25. Casing; 30. Fixing structure; 31. First connecting member; 311. Connecting hole; 312. First surface; 32. Pressing plate; 321. Pressing surface; 322. Back surface; 33. Protrusion; 34. First accommodating interval; 35. Connecting plate; 40. Locking member; x, first direction. DETAILED DESCRIPTION

[0050] In order to make the objectives, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

[0051] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0052] Example 1:

[0053] First, referring to Figures 1 to 4 , an embodiment of the present application provides a sealing ring 17 for use in a connector 10. The sealing ring 17 is provided with a material reduction opening 173 disposed around the circumference of the sealing ring 17. By providing the material reduction opening 173 on the sealing ring 17, the embodiment of the present application can reduce the mass of the sealing ring 17 and minimize the amount of compression of the sealing ring 17. Thus, when the sealing ring 17 is used in the connector 10 and used to seal the connector 10 with the compressor 20, the sealing ring 17 of the embodiment of the present application generates less rebound force when squeezed than a complete sealing ring in the related art. This makes it less likely that the sealing ring 17 on the opposite side will warp even if only one side of the connector 10 is connected to the compressor 20. This ensures the sealing performance of the sealing ring 17 between the connector 10 and the compressor 20, and improves the problem of warping of the connector 10 on the opposite side to the compressor 20 caused by only one side of the connector 10 being connected to the compressor 20 in the related art.

[0054] In the embodiment of the present application, the material reduction opening 173 on the sealing ring 17 is arranged around the circumference of the sealing ring 17. In this way, when the connector 10 and the compressor 20 are sealed, the material reduction opening 173 on the sealing ring 17 can provide deformation space for the sealing ring 17, so that after the sealing ring 17 is squeezed by the connector 10 and the compressor 20, the portion around the material reduction opening 173 can also be compressed. Compared with the case where the material reduction opening 173 is arranged around the axial direction of the sealing ring 17, the sealing performance of the sealing ring 17 can be effectively improved. It can be understood that the axial direction of the sealing ring 17 is roughly consistent with the direction in which the sealing ring 17 is squeezed, and the circumferential direction of the sealing ring 17 is roughly perpendicular to the direction in which the sealing ring 17 is squeezed. Therefore, when the sealing ring 17 is squeezed, the material reduction opening 173 perpendicular to the squeezing direction can be compressed, thereby improving the sealing performance of the sealing ring 17.

[0055] In one embodiment, the material reduction port 173 is arranged around the entire circumference of the sealing ring 17. In this way, when the sealing ring 17 is squeezed, it can generate a uniform rebound force while reducing its own compression, which is beneficial to improving the flatness of the sealing ring 17 sealing the connector 10 and the compressor 20.

[0056] In another embodiment, the material reduction opening 173 may include multiple sub-material reduction openings spaced apart around the circumference of the sealing ring 17. By providing multiple sub-material reduction openings on the sealing ring 17, when the sealing ring 17 is squeezed, the multiple sub-material reduction openings can, on the one hand, provide sufficient deformation space for the sealing ring 17, thereby improving the sealing performance of the sealing ring 17; on the other hand, the multiple sub-material reduction openings can further reduce the mass of the sealing ring 17, thereby reducing the resilience of the sealing ring 17 and preventing it from warping when sealing the connector 10 and the compressor 20. Arranging the multiple sub-material reduction openings at intervals is more conducive to maintaining the stability of the sealing ring 17 itself, thereby ensuring the stability of the sealing ring 17 in sealing the connector 10 and the compressor 20, compared to concentrating the multiple sub-material reduction openings in a single location on the sealing ring 17.

[0057] In the embodiment of the present application, the sealing ring 17 has a first side surface 174 and a second side surface 175 that are axially opposed to each other, and at least one of the first side surface 174 and the second side surface 175 is provided with a material reduction opening 173. Thus, when the sealing ring 17 is used in the connector 10, if the second side surface 175 is used to contact the housing 11 of the connector 10 and the material reduction opening 173 is provided on the second side surface 175, the material reduction opening 173 on the second side surface 175 will form a gap between the second side surface 175 and the housing 11 of the connector 10 at the material reduction opening 173. This gap can provide deformation space for the sealing ring 17 when the connector 10 is connected to the compressor 20, so that the second side surface 175 can also be compressed after the sealing ring 17 is squeezed by the connector 10 and the compressor 20, thereby improving the sealing performance of the sealing ring 17.

[0058] When the sealing ring 17 is used in the connector 10, if the first side 174 faces away from the housing 11 of the connector 10 and is used to contact the compressor 20 to achieve sealing between the connector 10 and the compressor 20, the first side 174 is provided with a material reduction port 173, which can achieve that when the connector 10 and the compressor 20 are connected, a gap is generated between the sealing ring 17 and the surface of the compressor 20. The gap can provide deformation space for the first side 174 of the sealing ring 17, so that after the sealing ring 17 is squeezed by the connector 10 and the compressor 20, the first side 174 can also be compressed, thereby improving the sealing performance of the sealing ring 17.

[0059] At least one of the first side surface 174 and the second side surface 175 is provided with a material reduction port 173. The first side surface 174 may be provided with the material reduction port 173; the second side surface 175 may be provided with the material reduction port 173; or both the first side surface 174 and the second side surface 175 may be provided with the material reduction port 173. The design can be flexible according to actual conditions and is not limited to this.

[0060] With reference to Figures 2 to 4 , the sealing ring 17 has two inclined surfaces 1731 that form the material reduction opening 173. Both inclined surfaces 1731 are inclined relative to the axial direction of the sealing ring 17, and the distance between the two inclined surfaces 1731 gradually decreases along the direction from the opening of the material reduction opening 173 to the bottom wall. By providing two inclined surfaces 1731 inclined relative to the axial direction of the sealing ring 17, when the sealing ring 17 is squeezed, the inclination generated by the inclined surfaces 1731 can cause the sealing ring 17 to deform as much as possible toward the material reduction opening 173, thereby increasing the deformation of the sealing ring 17.

[0061] The distance between the two inclined surfaces 1731 gradually decreases from the opening of the material reduction opening 173 to the bottom wall. The larger distance at the opening of the material reduction opening 173 can accommodate more deformation of the sealing ring 17, while the smaller distance at the bottom wall can restrain the deformation of the sealing ring 17. Furthermore, the deformation of the sealing ring 17 at the two inclined surfaces 1731 is roughly the same, which can improve the smoothness of the sealing ring 17 during sealing.

[0062] The sealing ring 17 also has a connecting surface 1732 that participates in forming the material reduction opening 173. The connecting surface 1732 is connected between the two inclined surfaces 1731 and is arranged at an angle to both inclined surfaces 1731. By providing the connecting surface 1732, the distance between the two inclined surfaces 1731 at the bottom wall of the material reduction opening 173 can be increased by using the connecting surface 1732, thereby increasing the space to accommodate the deformation of the sealing ring 17. In this case, the material reduction opening 173 has a larger space, and the mass of the sealing ring 17 is reduced, so that the sealing ring 17 has a smaller rebound force after being squeezed between the connector 10 and the compressor 20. Therefore, when the connector 10 is connected to the compressor 20 on only one side, the sealing ring 17 is less likely to warp on the side opposite to where the connector 10 and the compressor 20 are fixed.

[0063] It should be noted that the material reduction port 173 can be the one described above including two inclined surfaces 1731, such as a roughly V-shaped material reduction port; it can also be the one described above including two inclined surfaces 1731 and a connecting surface 1732, such as a roughly U-shaped material reduction port, etc. In addition, the material reduction port 173 can also adopt other shapes, which is not limited to this.

[0064] 4 , the sealing ring 17 has a circumferentially arranged inner side surface 176 and outer side surface 177. The inner side surface 176 is located within the outer side surface 177, and at least one of the inner side surface 176 and the outer side surface 177 is provided with a material reduction opening 173. The provision of the material reduction opening 173 on the inner side surface 176 and the outer side surface 177 of the sealing ring 17 allows the inner side surface 176 and the outer side surface 177 of the sealing ring 17 to deform when the sealing ring 17 is squeezed, thereby further reducing the rebound force generated by the squeezed sealing ring 17.

[0065] For example, in combination with Figure 4, the outer side surface 177 and the inner side surface 176 of the sealing ring 17 can be provided with a material reduction port 173. In this way, when the sealing ring 17 is squeezed, the inner side surface 176 and the outer side surface 177 will be deformed. On the one hand, it is beneficial to reduce the rebound force of the sealing ring 17; on the other hand, it is beneficial to improve the uniformity and stability of the deformation of the sealing ring 17, thereby improving the flatness of the sealing ring 17 when sealing the connector 10 and the compressor 20.

[0066] Secondly, referring to FIG5 , an embodiment of the present application provides a connector 10 comprising the aforementioned sealing ring 17 and a housing 11. The sealing ring 17 is configured to partially protrude from the housing 11 so that the portion of the sealing ring 17 protruding from the housing 11 can deform when the connector 10 is connected to the compressor 20, thereby improving the tightness of the connection between the connector 10 and the compressor 20.

[0067] The housing 11 is formed with a first port 1111 for allowing the compressor terminal 21 to extend into the housing 11. A sealing ring 17 is disposed on the side of the housing 11 where the first port 1111 is located. When viewed along the first port 1111, the sealing ring 17 is disposed around the first port 1111. Positioning the sealing ring 17 on the side of the housing 11 where the first port 1111 is located allows the sealing ring 17 to seal the side of the first port 1111 after the compressor terminal 21 is inserted into the housing 11 and plugged into the connector terminal 12, thereby ensuring a tight seal between the connector 10 and the compressor 20.

[0068] In the embodiment of the present application, an annular groove 1113 is provided on the side of the housing 11 where the first port 1111 is located. When viewed along the first port 1111, the annular groove 1113 is circumferentially extending around the first port 1111, and the sealing ring 17 is partially located within the annular groove 1113. The provision of the annular groove 1113 not only allows for positioning of the sealing ring 17 on the housing 11, thereby accelerating assembly of the sealing ring 17 to the housing 11, but also provides a restraining effect on the sealing ring 17, accommodating deformation of the sealing ring 17 caused by extrusion and preventing it from moving.

[0069] It is understood that the annular groove 1113 may or may not be in communication with the first port 1111. In the embodiment of the present application, the annular groove 1113 is not in communication with the first port 1111 to prevent the sealing ring 17 from deforming toward the inside of the first port 1111 during compression and deformation, thereby affecting the installation stability of the sealing ring 17. It should be noted that the sealing ring 17 can be installed in the annular groove 1113 by snap-fitting or by bonding, etc., without limitation.

[0070] Continuing to refer to Figure 5, the sealing ring 17 is partially located in the annular groove 1113 and can be: the sealing ring 17 includes a first part 171 and a second part 172 distributed along the axial direction, the first part 171 is located in the annular groove 1113 and the second part 172 is located outside the annular groove 1113, the first part 171 is connected to the second part 172, wherein the second part 172 located outside the annular groove 1113 can be deformed when the connector 10 is connected to the compressor 20 to improve the connection tightness between the connector 10 and the compressor 20.

[0071] In one embodiment, the first portion 171 is provided with a material reduction opening 173. A material reduction gap is formed at the material reduction opening 173 between the first portion 171 and the inner wall of the annular groove 1113. The material reduction gap provides deformation space for the sealing ring 17 when the connector 10 is connected to the compressor 20, causing the first portion 171 to be compressed, thereby improving the sealing performance of the sealing ring 17. In addition, the formation of the material reduction gap can reduce the mass of the sealing ring 17, thereby reducing the resilience of the sealing ring 17, making it less likely to warp when the sealing ring 17 is sealed between the connector 10 and the compressor 20.

[0072] Optionally, along the axial direction of the sealing ring 17, the ratio of the height of the second portion 172 to the height of the sealing ring 17 is greater than or equal to 5% and less than or equal to 50%. By reasonably limiting the height ratio of the second portion 172 to the sealing ring 17, it is possible to avoid a situation where too little of the sealing ring 17 is located outside the annular groove 1113 due to an excessively small ratio, thereby potentially creating a gap between the sealing ring 17, the housing 11, and the compressor 20 when the connector 10 is connected to the compressor 20, thereby preventing a complete seal and difficulty ensuring the sealing performance between the connector 10 and the compressor 20. It is also possible to avoid a situation where too much of the sealing ring 17 is located outside the annular groove 1113 due to an excessively large ratio, thereby preventing the housing 11 from being able to press against the sealing ring 17 when the connector 10 is connected to the compressor 20. For example, the ratio of the height of the second portion 172 of the sealing ring 17 located outside the annular groove 1113 to the height of the sealing ring 17 can be 5%, 10%, 20%, 30%, 40%, 50%, etc., without limitation.

[0073] In the embodiment of the present application, referring to Figures 5 to 8, the connector 10 includes a first connecting member 31, the first connecting member 31 is provided with a connecting hole 311, the compressor 20 is provided with a second connecting member 24, and the second connecting member 24 passes through the connecting hole 311; the compressor 20 also includes a locking member 40, the locking member 40 is located on the side of the first connecting member 31 away from the compressor 20 and is connected to the second connecting member 24, so that the connector 10 presses against the compressor 20.

[0074] The second connector 24 and the locking member 40 can be connected via threads. For example, the locking member 40 includes a nut, and the second connector 24 is provided with threads. The second connector 24 passes through the connection hole 311 and is threadedly connected to the nut. By tightening the nut, the distance between the compressor 20 and the connector 10 can be shortened. Furthermore, the first connector 31 and the second connector 24 can also be connected via plug-in connection, snap-fit ​​connection, or other methods, which are not limited to this.

[0075] Next, the connector 10 will be further described.

[0076] Continuing with Figures 6 and 8 , the connector 10 includes a housing 11 and a connector terminal 12. The housing 11 defines a first chamber 1117. The connector terminal 12 is located in the first chamber 1117. The housing 11 defines a first port 1111 communicating with the first chamber 1117. The connector terminal 12 is configured to electrically connect to the compressor terminal 21 extending into the first chamber 1117 via the first port 1111.

[0077] The connector 10 may include at least two connector terminals 12, and the housing 11 may be formed with at least two first cavities 1117, the number of which is equal to the number of the at least two connector terminals 12, with each connector terminal 12 being mounted in a one-to-one correspondence within each first cavity 1117. For example, the connector 10 may include two connector terminals 12 and the housing 11 may be formed with two first cavities 1117; alternatively, the connector 10 may include three connector terminals 12 and the housing 11 may be formed with three first cavities 1117, and so on, without limitation.

[0078] It can be understood that when the connector 10 includes at least two connector terminals 12 , the compressor 20 includes at least two compressor terminals 21 equal in number to the at least two connector terminals 12 , and each compressor terminal 21 is electrically connected to each connector terminal 12 in a one-to-one correspondence.

[0079] In some embodiments, the housing 11 may include a first housing portion 111 and a second housing portion 112. The first housing portion 111 is formed with a first port 1111 and a second port 1114 communicating with the first chamber 1117. The connector terminal 12 is mounted on the first housing portion 111 via the second port 1114. The second housing portion 112 is connected to the first housing portion 111. Disassembling the housing 11 into the first housing portion 111 and the second housing portion 112 facilitates assembly of the connector terminal 12.

[0080] It should be noted that when at least two first chambers 1117 are formed on the shell 11, the first shell portion 111 has first ports 1111 equal in number to the first chambers 1117 and second ports 1114 equal in number to the first chambers 1117. Each first port 1111 is connected to each first chamber 1117, and each second port 1114 is connected to each first chamber 1117.

[0081] The first housing portion 111 has a higher heat resistance than the second housing portion 112. Compared to the second housing portion 112, the first housing portion 111 is less likely to deform under high temperature conditions. Therefore, by disposing the first port 1111 on the first housing portion 111, when the connector 10 is connected to the compressor 20, the first housing portion 111 is close to the compressor 20. The first housing portion 111 has a higher heat resistance, which can prevent the internal connector terminals 12 from being softened by high temperatures, thereby extending the service life of the connector terminals 12.

[0082] The first shell portion 111 can be made of a high heat-resistant material. For example, the first shell portion 111 can include at least one of PBT (poly butylene terephthalate) and GF (glass fiber).

[0083] The first housing portion 111 is made of PBT+30% GF, which is a high-temperature resistant and fireproof insulating material, and can prevent the connector terminals 12 from softening during operation.

[0084] The second housing portion 112 can cover the second port 1114 and the connector terminal 12. The provision of the second port 1114 facilitates installation of the connector terminal 12 within the housing 11. The second housing portion 112 covers the second port 1114 and the connector terminal 12, so that when the connector terminal 12 and the compressor terminal 21 are connected, both are enclosed by the housing 11 of the connector 10, thereby preventing the presence of refrigerant near the two, which could easily cause ignition problems when the connector terminal 12 and the compressor terminal 21 are connected.

[0085] The second housing portion 112 may include an injection-molded housing portion connected to the first housing portion 111, and / or the second housing portion 112 may include a glue-filled housing portion connected to the first housing portion 111. The injection-molded housing portion is formed by an injection molding process, and the injection-molded housing portion is connected to the first housing portion 111, so that the injection-molded housing portion and the first housing portion 111 are at least an integrally-molded structure. Specifically, after the first housing portion 111 is molded, at least the first housing portion 111 is placed in a mold to form a cavity for molding the injection-molded housing portion, and then a molding compound is injected into the cavity to obtain the injection-molded housing portion.

[0086] The glue-potted housing portion is formed by a glue-potting process, and the glue-potted housing portion is connected to the first housing portion 111. Therefore, the glue-potted housing portion and the first housing portion 111 are at least an integrally molded structure formed by glue-potting. Specifically, the first housing portion 111 is formed with a molding groove, and at least the molding groove participates in constructing the glue-potted housing portion. Then, molding material is injected into the molding groove to obtain the glue-potted housing portion.

[0087] In summary, whether the second housing portion 112 includes an injection-molded housing portion or a glue-filled housing portion, the second housing portion 112 and the first housing portion 111 can be integrally formed. Compared to independently molding the second housing portion 112 and the first housing portion 111 and then assembling them, the tightness of the connection between the second housing portion 112 and the first housing portion 111 can be improved, as can the sealing between the second housing portion 112 and the first housing portion 111. The second housing portion 112 and the first housing portion 111 of the connector 10 are sealed, and when the connector 10 is connected to the compressor 20, the first housing portion 111 and the surface of the compressor 20 are sealed due to the presence of the sealing ring 17. In this way, the overall sealing of the connector 10 can be improved.

[0088] The second housing portion 112 can be made of a sealant shell, which provides excellent sealing performance. The second housing portion 112 can be elastic or non-elastic, allowing for flexible design based on actual needs. In the embodiment of the present application, the second housing portion 112 can be made of PVC (Polyvinyl chloride), which has excellent elasticity and sealing properties. The second housing portion 112 can be made of plastic or silicone, without limitation.

[0089] To improve the connection reliability between the second housing portion 112 and the first housing portion 111, one of the second housing portion 112 and the first housing portion 111 can be provided with a hook 1121, and the other can be provided with a slot 1112 that matches the hook 1121, with the hook 1121 located within the slot 1112. The second housing portion 112 and the first housing portion 111 can be hooked together via the hook 1121, making them difficult to separate. It is understood that the second housing portion 112 can be provided with the hook 1121 and the first housing portion 111 can be provided with the slot 1112; alternatively, the second housing portion 112 can be provided with the slot 1112 and the first housing portion 111 can be provided with the hook 1121, without limitation.

[0090] It is understandable that the second housing portion 112 can be integrally formed as an injection-molded housing portion, or the second housing portion 112 can be integrally formed as a glue-potted housing portion, so as to simplify the processing technology of the second housing portion 112 and reduce the manufacturing cost of the connector 10 .

[0091] The connector 10 also includes a cover member that covers the second port 1114, and the second housing portion 112 covers the cover member. The cover member prevents moisture, dust, and other impurities from entering the first housing portion 111 and affecting the performance of the connector terminal 12. Furthermore, when the second housing portion 112 includes an injection-molded housing portion or a potted housing portion, the cover member prevents the molding compound of the second housing portion 112 from passing through the second port 1114 and reaching the connector terminal 12, thereby encasing the connector terminal 12 and ensuring effective electrical connection between the connector terminal 12 and the compressor terminal 21.

[0092] The connector terminal 12 and the cover member may abut or have a gap therebetween. If there is a gap between the connector terminal 12 and the cover member, the connector terminal 12 can be deformed toward the gap when plugged into the compressor terminal 21, thereby preventing the connector terminal 12 and the compressor terminal 21 from being damaged by forced insertion.

[0093] The cover assembly may include a cover plate 14 , the cover plate 14 covers the second port 1114 and the connector terminal 12 , and the second housing portion 112 covers the cover plate 14 .

[0094] One of the cover plate 14 and the first housing portion 111 can be provided with a limiting protrusion 141, and the other can be provided with a limiting groove 1116, with the limiting protrusion 141 located within the limiting groove 1116. The provision of the limiting protrusion 141 and the limiting groove 1116 can facilitate positioning of the cover plate 14 and the first housing portion 111 during assembly, thereby improving assembly efficiency of the cover plate 14 and the first housing portion 111. It is understood that the limiting protrusion 141 can be provided on the cover plate 14 and the limiting groove 1116 can be provided on the first housing portion 111; alternatively, the limiting groove 1116 can be provided on the cover plate 14 and the limiting protrusion 141 can be provided on the first housing portion 111, without limitation. In the embodiment of the present application, a limiting protrusion 141 is provided on the cover plate 14, and a limiting groove 1116 is provided on the first shell portion 111. Since the cover plate 14 is relatively thin, providing the limiting protrusion 141 on the cover plate 14 is more conducive to improving the structural strength of the cover plate 14 than the limiting groove 1116.

[0095] If the housing 11 is formed with a plurality of first chambers 1117 and a plurality of second ports 1114 , the cover 14 covers all the second ports 1114 .

[0096] The housing 11 (e.g., the first housing portion 111) may further include a second chamber 1118 in communication with the first chamber 1117. The second chamber 1118 is closer to the compressor 20 than the first chamber 1117. Along the plugging direction, the cross-sectional profile of the second chamber 1118 is larger than the cross-sectional profiles of all first chambers 1117. Furthermore, along the plugging direction, the cross-sectional profiles of all first chambers 1117 are located within the cross-sectional profile of the second chamber 1118. Thus, when the connector 10 includes at least two connector terminals 12 and the compressor 20 includes at least two compressor terminals 21, when the compressor terminals 21 are connected to the connector terminals 12, all compressor terminals 21 can pass through the second chamber 1118 and then reach the corresponding first chamber 1117, thereby achieving electrical connection with the corresponding connector terminals 12. Furthermore, the compressor 20 may include a terminal seat 23 for fixing the compressor terminal 21 , and the terminal seat 23 protrudes relative to the compressor body. When the compressor terminal 21 is connected to the connector terminal 12 , the terminal seat 23 may be located in the second chamber 1118 .

[0097] It is understandable that the annular groove 1113 may or may not be in communication with the second chamber 1118. In the embodiment of the present application, the annular groove 1113 is not in communication with the second chamber 1118, which can prevent the sealing ring 17 from deforming toward the second chamber 1118 during compression and deformation, thereby affecting the installation stability of the sealing ring 17.

[0098] The connector 10 also includes a connecting wire 15, which is electrically connected to the connector terminal 12 and is used to enable signal interaction between the compressor 20 and the outside world when the connector terminal 12 is connected to the compressor terminal 21. Among them, the end of the connecting wire 15 connected to the connector terminal 12 is wrapped by the second shell portion 112 to improve the connection reliability between the connecting wire 15 and the connector terminal 12 and improve the sealing of the connector 10. Specifically, when the second shell portion 112 includes an injection molding shell portion and / or a glue-filling shell portion, the second shell portion 112 can directly wrap the end of the connecting wire 15 connected to the connector terminal 12 during injection molding and / or glue-filling. If the connector 10 includes multiple connector terminals 12, the connecting wire 15 is electrically connected to the multiple connector terminals 12.

[0099] The connector terminal 12 can be any terminal, and the compressor terminal 21 can be any terminal, as long as the compressor terminal 21 and the connector terminal 12 can be electrically connected.

[0100] For example, one of the connector terminal 12 and the compressor terminal 21 can be a male terminal, and the other can be a female terminal. In the embodiment of the present application, the connector terminal 12 is a female terminal, and the compressor terminal 21 is a male terminal. The connector terminal 12 is formed with a socket, and at least a portion of the compressor terminal 21 is inserted into the socket and electrically connected to the connector terminal 12. In other words, when the connector terminal 12 and the compressor terminal 21 are connected, at least a portion of the compressor terminal 21 is surrounded by the connector terminal 12, which can improve the connection reliability between the connector terminal 12 and the compressor terminal 21.

[0101] Example 2:

[0102] Referring to Figures 9 to 13, an embodiment of the present application provides a connector 10. Connector 10 includes a housing 11. Housing 11 has a first end face 113 and a second end face 114 that are opposite each other along a first direction x. Second end face 114 defines a first port 1111. First port 1111 allows a compressor terminal 21 of a compressor 20 to extend into housing 11, thereby achieving an electrical connection between connector 10 and compressor 20. Housing 11 also defines a through-hole 116 that extends through housing 11 along the first direction x. Through-hole 116 is located within first port 1111. Through-hole 116 allows a connector 22 of compressor 20 to extend through first port 1111, thereby connecting connector 10 to compressor 20.

[0103] In the above-mentioned design, the through hole 116 on the connector 10 for connecting to the connecting piece 22 of the compressor 20 is located inside the first port 1111. Compared with the related art in which the connecting hole on the connector for connecting the connecting piece is located outside the first port, and in terms of the single-side connection of the connector to the compressor through the connecting piece, the through hole 116 can be located roughly in the middle of the connector 10, so that the connecting piece 22 located in the through hole 116 is roughly in the middle of the connector 10, and the connection between the connector 10 and the compressor 20 is realized, thereby improving the problem of the connector warping on the opposite side where the compressor is fixed due to the single-sided fixation of the connector and the compressor.

[0104] It should be noted that the through hole 116 may be located at the center of the first port 1111 ; the through hole 116 may also be offset from the center of the first port 1111 , which is not limited thereto.

[0105] The connector 10 and the compressor 20 are connected via a connector 22 extending into the through-hole 116. One side of the connector 22 extending through the through-hole 116 can be connected to a locking member 40, thereby securing the connector 10 to the compressor 20. The connector 22 and the locking member 40 can be threadedly connected. For example, the locking member 40 includes a nut, and the connector 22 is threadedly connected to the nut after passing through the through-hole 116. Tightening the nut can shorten the distance between the compressor 20 and the connector 10.

[0106] Of course, the connecting member 22 extending into the through hole 116 may also be connected to the inner wall of the through hole 116 by means of snap-fitting or the like, which is not limited to this.

[0107] 11 , the connector 10 further includes a connector terminal 12 for electrically connecting to the compressor terminal 21. The connector terminal 12 can be any terminal, and the compressor terminal 21 can be any terminal, as long as the compressor terminal 21 and the connector terminal 12 can be electrically connected.

[0108] For example, one of the connector terminal 12 and the compressor terminal 21 can be a male terminal, and the other can be a female terminal. In the embodiment of the present application, the connector terminal 12 is a female terminal, and the compressor terminal 21 is a male terminal. The connector terminal 12 is formed with a socket, and at least a portion of the compressor terminal 21 is inserted into the socket and electrically connected to the connector terminal 12. In other words, when the connector terminal 12 and the compressor terminal 21 are connected, at least a portion of the compressor terminal 21 is surrounded by the connector terminal 12, which can improve the connection reliability between the connector terminal 12 and the compressor terminal 21.

[0109] Among them, the first direction x can be roughly parallel to the plug-in direction of the compressor terminal 21 and the connector terminal 12, so that when the connector 10 and the compressor 20 are fixed by the connecting member 22, the compressor terminal 21 and the connector terminal 12 can move relative to each other along the plug-in direction. Compared with moving in a direction intersecting with the plug-in direction, the risk of breaking the compressor terminal 21 and the connector terminal 12 can be avoided.

[0110] Referring to FIG. 11 , the housing 11 is formed with a first cavity 1117. When viewed along a first port 1111, the first cavity 1117 is located within and communicates with the first port 1111. The connector terminal 12 is located within the first cavity 1117. This allows the compressor terminal 21 to extend into the first cavity 1117 through the first port 1111 and electrically connect to the connector terminal 12. The provision of the first cavity 1117 facilitates positioning the connector terminal 12 within the housing 11.

[0111] The first cavity 1117 can be separated from the through hole 116. In this way, the connector terminal 12 disposed in the first cavity 1117 and the connecting member 22 disposed in the through hole 116 can be separated and insulated from each other.

[0112] The connector 10 may include a plurality of connector terminals 12, and the housing 11 may be formed with a plurality of first cavities 1117, with each connector terminal 12 correspondingly located in each first cavity 1117. For example, the connector 10 may include two connector terminals 12, and the housing 11 may be formed with two first cavities 1117; or the connector 10 may include three connector terminals 12, and the housing 11 may be formed with three first cavities 1117, and so on, without limitation.

[0113] It is understandable that when the connector 10 includes a plurality of connector terminals 12 , the compressor 20 includes a plurality of compressor terminals 21 equal in number to the plurality of connector terminals 12 , and each compressor terminal 21 is electrically connected to each connector terminal 12 in a one-to-one correspondence.

[0114] 11 , when connector 10 includes multiple connector terminals 12 and multiple first chambers 1117, when viewed along first port 1111, through-hole 116 is located between the multiple first chambers 1117. Thus, when connector 10 and compressor 20 are connected via connector 22 disposed within through-hole 116, connector 22 is located between the multiple connector terminals 12. This ensures that the connection forces acting on each connector terminal 12 are substantially similar, thereby ensuring the reliability of the electrical connection between each connector terminal 12 and compressor terminal 21.

[0115] Referring to Figures 10-12, housing 11 defines a second chamber 1118, which extends from second end surface 114 toward first end surface 113. Second chamber 1118 forms a first port 1111 on the side of second end surface 114. When connector 10 is connected to compressor 20, second chamber 1118 is closer to compressor 20 than first chamber 1117. The provision of second chamber 1118 reduces the mating area between connector 10 and compressor 20, lowering the precision design requirements for connector 10's mating surfaces.

[0116] Referring to FIG. 10 , along a first direction x, the cross-sectional profile of second cavity 1118 is larger than the cross-sectional profiles of all first cavities 1117. Furthermore, along the first direction x, the cross-sectional profiles of all first cavities 1117 are located within the cross-sectional profile of second cavity 1118. Thus, when connector 10 includes multiple connector terminals 12 and compressor 20 includes multiple compressor terminals 21, when connecting to connector terminals 12, all compressor terminals 21 can pass through second cavity 1118 and into corresponding first cavity 1117, thereby achieving electrical connection with the corresponding connector terminals 12.

[0117] Referring to FIG. 10 , the compressor 20 may include a terminal block 23 for securing the compressor terminal 21. The terminal block 23 protrudes outward from the compressor body. When the compressor terminal 21 is connected to the connector terminal 12, the terminal block 23 may be located within the second cavity 1118. This improves the sealing performance between the connector 10 and the compressor 20.

[0118] Referring to FIG. 10 , the connector 10 may further include a connecting sleeve 13. The connecting sleeve 13 is located in the second chamber 1118 and is connected to a bottom wall 1119 of the second chamber 1118 away from the second end surface 114. The connecting sleeve 13 surrounds the periphery of the through-hole 116 and is configured to fit around the periphery of the connector 22. The connecting sleeve 13 can encase the portion of the connector 22 located within the second chamber 1118, preventing the connector 22 from being exposed.

[0119] The connecting sleeve 13 can be extended from the bottom wall 1119 of the outer shell 11, that is, the connecting sleeve 13 and the bottom wall 1119 are an integrally formed structure; the connecting sleeve 13 can also be formed independently and then connected to the bottom wall 1119 of the outer shell 11, which is not limited to this.

[0120] 10 , the connector 10 may include a first seal 161. The first seal 161 is configured to fit around the periphery of the connector 22 and abut between the connector sleeve and the compressor 20. Thus, when the connector 10 and the compressor 20 are connected via the connector 22, the first seal 161 can seal the connector 22, preventing dust, water, and the like from entering the connector 10 through the through-hole 116.

[0121] It should be noted that the connector 22 can be either metal or non-metallic. If the connector 22 is metal, the connection sleeve 13 can be provided to enclose the upper portion of the connector 22 within the second chamber 1118, preventing the electrical connection portion of the compressor terminal 21 extending into the first chamber 1117 from directly creeping horizontally to the upper portion of the connector 22. Instead, the electrical current must first creep along the compressor terminal 21 to the bottom of the compressor terminal 21, and then creep horizontally to the lower portion of the connector 22 not enclosed by the connection sleeve 13, thereby increasing the creepage distance and meeting electrical design requirements.

[0122] Furthermore, the arrangement of the connecting sleeve 13 and the first sealing member 161 allows the portion of the connecting member 22 within the second chamber 1118 to be sealed by the connecting sleeve 13 and the first sealing member 161, thereby preventing the compressor terminal 21 from creeping onto the connecting member 22 within the second chamber 1118. Thus, when the connector 10 is connected to the compressor 20, it is only necessary to ensure that the spacing between the compressor terminals 21 of the compressor 20 is sufficient so that the creepage spacing between the compressor terminals 21 meets the required creepage spacing. There is no need to design a sufficiently large spacing between the connecting member 22 and the compressor terminal 21, that is, there is no need to design a sufficiently large spacing between the through-hole 116 and the connector terminal 12, thereby reducing the size of the connector 10.

[0123] It should be noted that it is also possible not to design the connecting sleeve 13 or the first seal 161, but to design the spacing between each compressor terminal 21 and the connector 22 to be large enough so that the creepage distance from the compressor terminal 21 to the connector 22 is sufficient to meet the power design requirements.

[0124] Of course, an insulating layer may also be provided on the surface of the connector 22 to prevent the compressor terminal 21 from creeping onto the connector 22. The insulating layer may be provided on the surface of the connector 22 by spraying an insulating coating or sintering an insulating material, which is not limited thereto.

[0125] Referring to FIG. 14 , connector 10 may further include a second sealing member 162. Second sealing member 162 is located within connector sleeve 13 and / or through-hole 116 and is configured to fit around connector 22. The provision of second sealing member 162 seals connector 10 and connector 22, preventing dust, water, and the like from entering connector 10 through through-hole 116. A sealing groove for receiving second sealing member 162 may be provided within connector sleeve 13 and / or through-hole 116, though this is not intended to be limiting.

[0126] In the embodiment of the present application, the second sealing member 162 is disposed on a side of the through hole 116 close to the first end surface 113. Thus, when the locking member 40 is connected to the connector 22, the second sealing member 162 can be squeezed to improve the sealing performance between the connector 22 and the connector 10.

[0127] Referring to Figures 10 and 12 , connector 10 further includes a sealing ring 17. At least a portion of sealing ring 17 protrudes from second end surface 114. Sealing ring 17 is disposed around the periphery of first port 1111 and is configured to abut compressor 20. Sealing ring 17 provides a seal between connector 10 and compressor 20. The portion of sealing ring 17 protruding from second end surface 114 is compressed when connector 10 and compressor 20 are secured, thereby enhancing the tightness of the connection between the two.

[0128] It is understood that opposite sides of the sealing ring 17 may respectively abut the surface of the compressor 20 and the housing 11 of the connector 10 to achieve a seal between the surface of the compressor 20 and the housing 11. In an exemplary embodiment, the sealing ring 17 may be disposed on the second end surface 114 of the housing 11. In this case, to achieve a reliable connection between the sealing ring 17 and the housing 11, the sealing ring 17 and the housing 11 may be connected by means of an adhesive or the like to prevent the sealing ring 17 from falling off.

[0129] In another exemplary embodiment, the second end face 114 of the outer shell 11 may be provided with an annular groove 1113, and part of the sealing ring 17 may be located in the annular groove 1113. The setting of the annular groove 1113 can, on the one hand, position the installation position of the sealing ring 17 on the outer shell 11, thereby speeding up the assembly speed between the sealing ring 17 and the outer shell 11; on the other hand, it can restrain the sealing ring 17, thereby accommodating the deformation of the sealing ring 17 caused by extrusion and making it difficult to move.

[0130] The portion of the sealing ring 17 located in the annular groove 1113 may include a first portion 171 and a second portion 172 distributed in the depth direction of the annular groove 1113. The first portion 171 may be located within the annular groove 1113, and the second portion 172 may be located outside the annular groove 1113. The second portion 172 located outside the annular groove 1113 may deform when the connector 10 is connected to the compressor 20, thereby improving the tightness of the connection between the connector 10 and the compressor 20.

[0131] The sealing ring 17 can be installed in the annular groove 1113 by snapping, or by bonding or other methods, which is not limited to this.

[0132] It is understandable that the annular groove 1113 may or may not be in communication with the second chamber 1118. In the embodiment of the present application, the annular groove 1113 is not in communication with the second chamber 1118, which can prevent the sealing ring 17 from deforming toward the second chamber 1118 during compression and deformation, thereby affecting the installation stability of the sealing ring 17.

[0133] The sealing ring 17 can be any device with sealing performance, such as a sealing ring, etc. In the embodiment of the present application, the sealing ring 17 is a device with elasticity and high heat resistance. The sealing ring 17 has elasticity, so that when the connector 10 is connected to the compressor 20, the sealing ring 17 can be in a compressed state to improve the tightness of the connection between the connector 10 and the compressor 20; and the sealing ring 17 has high heat resistance, which can prevent the sealing ring 17 from being damaged by the surface heat of the compressor 20, and can improve the service life of the sealing ring 17. Specifically, the sealing ring 17 can be a silicone rubber sealing ring, which has low cost and is elastic and highly heat-resistant.

[0134] Next, the connector 10 will be further described.

[0135] In some embodiments, the housing 11 may include a first housing portion 111 and a second housing portion 112. The first housing portion 111 is formed with a first port 1111, a first chamber 1117, and a second port 1114 communicating with the first chamber 1117. The connector terminal 12 is mounted on the first housing portion 111 via the second port 1114, and the second housing portion 112 is connected to the first housing portion 111. Disassembling the housing 11 into the first housing portion 111 and the second housing portion 112 facilitates assembly of the connector terminal 12. The through hole 116 may penetrate the first housing portion 111 and the second housing portion 112. The first housing portion 111 may be provided with a second chamber 1118.

[0136] It should be noted that when a plurality of first chambers 1117 are formed on the housing 11 , the first housing portion 111 has the same number of second ports 1114 as the number of the first chambers 1117 , and each second port 1114 is correspondingly connected to each first chamber 1117 .

[0137] The first housing portion 111 has a higher heat resistance than the second housing portion 112. Compared to the second housing portion 112, the first housing portion 111 is less likely to deform under high temperature conditions. Therefore, by disposing the first port 1111 on the first housing portion 111, when the connector 10 is connected to the compressor 20, the first housing portion 111 is close to the compressor 20. The first housing portion 111 has a higher heat resistance, which can prevent the internal connector terminals 12 from being softened by high temperatures, thereby extending the service life of the connector terminals 12.

[0138] If the connector 10 includes a sealing ring 17, the sealing ring 17 is connected to the first housing portion 111. The sealing ring 17 is arranged on the first housing portion 111. Even if heat from the surface of the compressor 20 is transferred to the sealing ring 17 and the first housing portion 111, the first housing portion 111 is not easily deformed. This provides a stable support effect for the sealing ring 17, ensuring the sealing performance between the compressor 20 and the connector 10, while also ensuring a stable connection between the compressor 20 and the connector 10.

[0139] The first housing portion 111 can be made of a highly heat-resistant material. For example, the first housing portion 111 can include at least one of PBT (poly butylene terephthalate) and GF (glass fiber). In the embodiment of the present application, the first housing portion 111 is made of PBT + 30% GF, a high-temperature and fire-resistant insulation material that prevents softening of the connector terminals 12 during operation.

[0140] The second housing portion 112 can cover the second port 1114 and the connector terminal 12. The provision of the second port 1114 facilitates installation of the connector terminal 12 within the housing 11. The second housing portion 112 covers the second port 1114 and the connector terminal 12, allowing the connector terminal 12 and the compressor terminal 21 to be enclosed by the housing 11 of the connector 10 when connected. This prevents the presence of refrigerant near the connector terminals, which could easily cause sparks when the connector terminals 12 and the compressor terminals 21 are connected. The first housing portion 111 can have a second end surface 114, and the second housing portion 112 can have a first end surface 113.

[0141] The second housing portion 112 may include an injection-molded housing portion connected to the first housing portion 111, and / or the second housing portion 112 may include a glue-filled housing portion connected to the first housing portion 111. The injection-molded housing portion is formed by an injection molding process, and the injection-molded housing portion is connected to the first housing portion 111, so that the injection-molded housing portion and the first housing portion 111 are at least an integrally-molded structure. Specifically, after the first housing portion 111 is molded, at least the first housing portion 111 is placed in a mold to form a cavity for molding the injection-molded housing portion, and then a molding compound is injected into the cavity to obtain the injection-molded housing portion.

[0142] The glue-potted housing portion is formed by a glue-potting process, and the glue-potted housing portion is connected to the first housing portion 111. Therefore, the glue-potted housing portion and the first housing portion 111 are at least an integrally molded structure formed by glue-potting. Specifically, the first housing portion 111 is formed with a molding groove, and at least the molding groove participates in constructing the glue-potted housing portion. Then, molding material is injected into the molding groove to obtain the glue-potted housing portion.

[0143] In summary, whether the second housing portion 112 includes an injection-molded housing portion or a glue-filled housing portion, the second housing portion 112 and the first housing portion 111 can be integrally formed. Compared to independently molding the second housing portion 112 and the first housing portion 111 and then assembling them, the tightness of the connection between the second housing portion 112 and the first housing portion 111 can be improved, as can the sealing between the second housing portion 112 and the first housing portion 111. The second housing portion 112 and the first housing portion 111 of the connector 10 are sealed, and when the connector 10 is connected to the compressor 20, the first housing portion 111 and the surface of the compressor 20 are sealed due to the presence of the sealing ring 17. In this way, the overall sealing of the connector 10 can be improved.

[0144] When the second housing portion 112 includes an injection-molded housing portion or a glue-filled housing portion, in order to prevent the molding material of the second housing portion 112 from seeping into the through hole 116, a push rod can be provided to participate in forming the molding cavity of the second housing portion 112. After molding is completed, the push rod can be pulled out.

[0145] The second housing portion 112 can be made of a sealant shell, which provides excellent sealing performance. The second housing portion 112 can be elastic or non-elastic, allowing for flexible design based on actual needs. In the embodiment of the present application, the second housing portion 112 can be made of PVC (Polyvinyl chloride), which has excellent elasticity and sealing properties. The second housing portion 112 can be made of plastic or silicone, without limitation.

[0146] To enhance the connection reliability between the second housing portion 112 and the first housing portion 111, one of the second housing portion 112 and the first housing portion 111 can be provided with a hook, and the other can be provided with a slot that matches the hook, with the hook located within the slot. The second housing portion 112 and the first housing portion 111 can be locked together by the hook, making them difficult to separate. It is understood that the second housing portion 112 can be provided with a hook and the first housing portion 111 can be provided with a slot; alternatively, the second housing portion 112 can be provided with a slot and the first housing portion 111 can be provided with a hook, without limitation.

[0147] It is understandable that the second housing portion 112 can be integrally formed as an injection-molded housing portion, or the second housing portion 112 can be integrally formed as a glue-potted housing portion, so as to simplify the processing technology of the second housing portion 112 and reduce the manufacturing cost of the connector 10 .

[0148] The connector 10 also includes a cover member that covers the second port 1114, and the second housing portion 112 covers the cover member. The cover member prevents moisture, dust, and other impurities from entering the first housing portion 111 and affecting the performance of the connector terminal 12. Furthermore, when the second housing portion 112 includes an injection-molded housing portion or a potted housing portion, the cover member prevents the molding compound of the second housing portion 112 from passing through the second port 1114 and reaching the connector terminal 12, thereby encasing the connector terminal 12 and ensuring effective electrical connection between the connector terminal 12 and the compressor terminal 21.

[0149] The connector terminal 12 and the cover member may abut or have a gap therebetween. If there is a gap between the connector terminal 12 and the cover member, the connector terminal 12 can be deformed toward the gap when plugged into the compressor terminal 21, thereby preventing the connector terminal 12 and the compressor terminal 21 from being damaged by forced insertion.

[0150] The cover assembly may include a cover plate 14, which covers the second port 1114 and the connector terminal 12, and the second housing portion 112 covers the cover plate 14. The through hole 116 may pass through the cover plate 14 or may be arranged away from the cover plate 14. The design may be flexible based on actual needs and is not limited thereto.

[0151] One of the cover plate 14 and the first housing portion 111 can be provided with a limiting protrusion 141, and the other can be provided with a limiting groove 1116, with the limiting protrusion 141 located within the limiting groove 1116. The provision of the limiting protrusion 141 and the limiting groove 1116 can facilitate positioning of the cover plate 14 and the first housing portion 111 during assembly, thereby improving assembly efficiency of the cover plate 14 and the first housing portion 111. It is understood that the limiting protrusion 141 can be provided on the cover plate 14 and the limiting groove 1116 can be provided on the first housing portion 111; alternatively, the limiting groove 1116 can be provided on the cover plate 14 and the limiting protrusion 141 can be provided on the first housing portion 111, without limitation. In the embodiment of the present application, a limiting protrusion 141 is provided on the cover plate 14, and a limiting groove 1116 is provided on the first shell portion 111. Since the cover plate 14 is relatively thin, providing the limiting protrusion 141 on the cover plate 14 is more conducive to improving the structural strength of the cover plate 14 than the limiting groove 1116.

[0152] If the housing 11 is formed with a plurality of second ports 1114 , the cover 14 covers all the second ports 1114 .

[0153] The connector 10 also includes a connecting wire 15, which is electrically connected to the connector terminal 12 and is used to enable signal interaction between the compressor 20 and the outside world when the connector terminal 12 is connected to the compressor terminal 21. Among them, the end of the connecting wire 15 connected to the connector terminal 12 is wrapped by the second shell portion 112 to improve the connection reliability between the connecting wire 15 and the connector terminal 12 and improve the sealing of the connector 10. Specifically, when the second shell portion 112 includes an injection molding shell portion and / or a glue-filling shell portion, the second shell portion 112 can directly wrap the end of the connecting wire 15 connected to the connector terminal 12 during injection molding and / or glue-filling. If the connector 10 includes multiple connector terminals 12, the connecting wire 15 is electrically connected to the multiple connector terminals 12.

[0154] In some other embodiments, referring to FIG. 14 , a connection surface 131 of the connecting sleeve 13, which is away from the bottom wall 1119, is used to abut the compressor 20. In this way, the connecting sleeve 13 can completely enclose the portion of the connector 22 within the second chamber 1118, thereby preventing the compressor terminal 21 from creeping onto the connector 22 within the second chamber 1118.

[0155] Furthermore, connector 10 includes a second sealing member 162, which is located within connecting sleeve 13 and / or through-hole 116. Second sealing member 162 is configured to fit around the periphery of connecting member 22. The provision of second sealing member 162 provides a seal between connector 10 and connecting member 22, preventing dust, water, and the like from entering connector 10 through through-hole 116. A sealing groove for accommodating second sealing member 162 may be provided within connecting sleeve 13 and / or through-hole 116, though this is not a limitation.

[0156] In the embodiment of the present application, the second sealing member 162 is disposed on a side of the through hole 116 close to the first end surface 113. Thus, when the locking member 40 is connected to the connector 22, the second sealing member 162 can be squeezed to improve the sealing performance between the connector 22 and the connector 10.

[0157] Example 3:

[0158] Referring to Figures 15 to 17, Figure 15 is a top view schematic diagram of the connector 10 provided in some embodiments of the present application, Figure 16 is a cross-sectional schematic diagram in the CC direction of Figure 15, and Figure 17 is an exploded schematic diagram of Figure 16. The connector 10 includes a housing 11 and connector terminals 12.

[0159] The housing 11 includes a first housing portion 111 and a cover plate 14. The first housing portion 111 is formed with a first port 1111 and a second port 1114. The connector terminal 12 is located within the first housing portion 111 via the second port 1114. The connector terminal 12 is used to electrically connect to the compressor terminal 21 extending into the first housing portion 111 via the first port 1111. The cover plate 14 is located on the side of the first housing portion 111 where the second port 1114 is located and covers the second port 1114. The cover plate 14 is sealed to the first housing portion 111 and has a visible exterior surface 142. The exterior surface 142 is the surface visible to the user.

[0160] The housing 11 is designed to include a first housing portion 111 and a cover plate 14. The cover plate 14 is located on one side of the first housing portion 111 and has a visible exterior surface 142. Compared to designs in which a covering cap is used to enclose the housing and the cover plate, the size of the housing 11 can be reduced, thereby miniaturizing the connector 10. The cover plate 14 is sealed to the first housing portion 111, preventing impurities such as moisture and dust from entering the housing 11 through the second port 1114 and affecting the performance of the connector terminal 12. Furthermore, when the compressor 20 uses R290 refrigerant, flammable and explosive refrigerant, or combustible refrigerant, the refrigerant can be prevented from entering the connector terminal 12 and the compressor terminal 21, thereby preventing sparks from igniting when the connector terminal 12 and the compressor terminal 21 are connected.

[0161] The sealed connection between the cover plate 14 and the first housing portion 111 can be a sealed connection between the cover plate 14 and the first housing portion 111 at the periphery of the second port 1114. Furthermore, the cover plate 14 and the first housing portion 111 can be welded at the periphery of the second port 1114 to achieve close contact between the cover plate 14 and the first housing portion 111 by melting the material to achieve a sealing effect. The welding can be ultrasonic welding, etc. Furthermore, the cover plate 14 and the first housing portion 111 are welded at the outer edge of the junction between the two to facilitate the welding operation and improve the connection efficiency between the cover plate 14 and the first housing portion 111.

[0162] The cover plate 14 and the first housing portion 111 are sealed at the periphery of the second port 1114. Alternatively, a first seal may be provided between the cover plate 14 and the first housing portion 111, and the first seal may be located at the periphery of the second port 1114, so that a seal between the two is achieved by adding the first seal between the cover plate 14 and the first housing portion 111. The first seal may be located entirely or partially between the cover plate 14 and the first housing portion 111. If the first seal is partially located between the cover plate 14 and the first housing portion 111, the remaining portion of the first seal may extend into the cover plate 14 and / or the first housing portion 111 to facilitate positioning of the first seal between the cover plate 14 and the first housing portion 111.

[0163] It should be noted that if the cover plate 14 and the first housing portion 111 are sealed by the above-mentioned first sealing member, in order to achieve the fixation of the relative position between the cover plate 14 and the first housing portion 111 and to stabilize the shape of the connector 10, the cover plate 14 and the first housing portion 111 will also be connected. For example, the cover plate 14 and the first housing portion 111 are snap-connected, welded, or connected by screws and nuts. The welding connection can be a partial point welding connection at the junction of the cover plate 14 and the first housing portion 111, or the above-mentioned outer edge welding connection at the junction of the cover plate 14 and the first housing portion 111, etc. When the cover plate 14 is connected to the first housing portion 111, the first sealing member can be squeezed so that the first sealing member can be in closer contact with the cover plate 14 and the first housing portion 111 to achieve a sealing effect.

[0164] One of the cover plate 14 and the first housing portion 111 is provided with a limiting protrusion 141, and the other is provided with a limiting groove 1116 that matches the limiting protrusion 141. The limiting protrusion 141 is located within the limiting groove 1116. The provision of the limiting protrusion 141 and the limiting groove 1116 can position the assembly of the cover plate 14 and the first housing portion 111, which helps improve the assembly efficiency of the cover plate 14 and the first housing portion 111. It is understood that the limiting protrusion 141 can be provided on the cover plate 14 and the limiting groove 1116 can be provided on the first housing portion 111; alternatively, the limiting groove can be provided on the cover plate 14 and the limiting protrusion can be provided on the first housing portion 111. In the embodiment of the present application, a limiting protrusion 141 is provided on the cover plate 14, and a limiting groove 1116 is provided on the first shell portion 111. Since the cover plate 14 is relatively thin, providing the limiting protrusion 141 on the cover plate 14 is more conducive to improving the structural strength of the cover plate 14 than the limiting groove 1116.

[0165] The first housing portion 111 is formed with a first cavity 1117 for accommodating the connector terminal 12 . The first cavity 1117 forms a second port 1114 . The connector terminal 12 is located in the first cavity 1117 via the second port 1114 .

[0166] In some embodiments, the first chamber 1117 can form a first port 1111. In other embodiments, the first housing portion 111 further defines a second chamber 1118, which communicates with the first chamber 1117. The second chamber 1118 is located farther from the cover plate 14 than the first chamber 1117. The side of the second chamber 1118 facing away from the first chamber 1117 forms the first port 1111. When viewed along the first port 1111, the cross-sectional profile of the first chamber 1117 lies within the cross-sectional profile of the second chamber 1118. Thus, when the connector 10 is connected to the compressor 20, the second chamber 1118 is closer to the compressor 20 than the first chamber 1117. The provision of the second chamber 1118 can reduce the docking area between the connector 10 and the compressor 20, thereby lowering the precision design requirements for the docking surface of the connector 10.

[0167] Referring to Figures 18 and 19, Figure 18 is a front view of a connector 10 provided in other embodiments of the present application, Figure 19 is a cross-sectional view taken along the DD direction in Figure 18, and Figure 20 is a bottom view of Figure 18. The connector 10 includes at least two connector terminals 12, and a first housing portion 111 is formed with first cavities 1117 equal in number to the number of connector terminals 12. Each first cavity 1117 has a second port 1114, and each connector terminal 12 is positioned within each first cavity 1117 via each second port 1114. For example, the connector 10 includes two connector terminals 12, and the first housing portion 111 is formed with two first cavities 1117 and two second ports 1114; alternatively, the connector 10 includes three connector terminals 12, and the first housing portion 111 is formed with three first cavities 1117 and three second ports 1114.

[0168] If the first housing portion 111 is formed with at least two second ports 1114, the cover 14 covers all of the second ports 1114 and the cover 14 and the first housing portion 111 are sealed around the periphery of all of the second ports 1114. This prevents moisture, dust, and other impurities from entering the housing 11 through the second ports 1114 and affecting the performance of the connector terminals 12.

[0169] If the cover plate 14 and the first housing portion 111 are welded, the cover plate 14 and the first housing portion 111 can be welded together at the outer edges of the junction between the cover plate 14 and the first housing portion 111 to achieve a sealed connection between the cover plate 14 and the first housing portion 111 around the periphery of all second ports 1114. If the cover plate 14 and the first housing portion 111 are sealed by the aforementioned first sealing member, the first sealing member can be positioned around the periphery of all second ports 1114, or the number of first sealing members can be equal to the number of second ports 1114, with each first sealing member positioned around the periphery of each second port 1114.

[0170] Referring to Figures 16 and 17 , connector 10 also includes a connecting wire 15. Housing 11 defines a wire hole 117 that communicates with first chamber 1117. One end of connecting wire 15 is located within housing 11 and electrically connected to connector terminal 12. The other end of connecting wire 15 passes through wire hole 117 and is located outside housing 11. Connecting wire 15 is used to enable signal exchange between compressor 20 and the outside world when connector terminal 12 is connected to compressor terminal 21.

[0171] The housing 11 is formed with a wire hole 117. The wire hole 117 can be formed on the first housing portion 111, on the cover plate 14, or between the first housing portion 111 and the cover plate 14. Please refer to Figures 16 and 17. If the wire hole 117 is formed on the first housing portion 111 or the cover plate 14, the connecting wire 15 needs to be passed through the wire hole 117 before the first housing portion 111 and the cover plate 14 are connected. If the wire hole 117 is formed between the first housing portion 111 and the cover plate 14, the connecting wire 15 can be passed through the wire hole 117 before or when the first housing portion 111 and the cover plate 14 are connected. The wire hole 117 is open before the first housing portion 111 and the cover plate 14 are connected, which facilitates the placement of the connecting wire 15 in the wire hole 117.

[0172] If a wire-passing hole 117 is formed in the housing 11 between the first housing portion 111 and the cover plate 14, a notch 1115 may be formed in the first housing portion 111 on the side where the second port 1114 is located, and the inner wall of the notch 1115 and the cover plate 14 are combined to form the wire-passing hole 117; or a notch 1115 may be formed in the side of the cover plate 14 close to the first housing portion 111, and the inner wall of the notch 1115 and the first housing portion 111 are combined to form the wire-passing hole 117; or notches 1115 may be formed in both the first housing portion 111 on the side where the second port 1114 is located and on the side of the cover plate 14 close to the first housing portion 111, and the notches 1115 on both sides are combined to form the wire-passing hole 117.

[0173] Optionally, the first housing portion 111 has a notch 1115 formed on the side where the second port 1114 is located, while the cover plate 14 has no notch 1115. Since the cover plate 14 is relatively thin, not having the notch 1115 on the cover plate 14 can ensure the structural strength of the cover plate 14.

[0174] In the embodiment of the present application, referring to Figures 16 and 17, a notch 1115 is formed on the side of the first housing portion 111 where the second port 1114 is located. The notch 1115 is in communication with the first chamber 1117. The cover plate 14 is formed with a pressing portion 143 that extends into the notch 1115. The pressing portion 143 and the inner wall of the notch 1115 form a wire hole 117. The notch 1115 facilitates positioning the connecting wire 15 between the first housing portion 111 and the cover plate 14. The pressing portion 143 facilitates more firmly pressing the connecting wire 15 within the wire hole 117 to prevent the connecting wire 15 from moving.

[0175] The connecting wire 15 is sealedly connected to the housing 11 at the wire hole 117 to prevent dust, impurities, etc. from entering the housing 11 through the wire hole 117 .

[0176] In an exemplary embodiment, the diameter of the wire hole 117 is smaller than the diameter of the connecting wire 15, and the connecting wire 15 is elastic. In this way, the wall of the wire hole 117 squeezes the connecting wire 15, making the connection between the inner wall of the wire hole 117 and the connecting wire 15 tighter, thereby achieving a sealing effect.

[0177] In another exemplary embodiment, the connector 10 further includes a third seal 18, which is located in the wire hole 117 and sleeved over the connecting wire 15. The third seal 18 can achieve a seal between the connecting wire 15 and the housing 11 at the wire hole 117. The diameter of the wire hole 117 can be larger than the diameter of the connecting wire 15 but smaller than the outer diameter of the third seal 18, so that the third seal 18 can be squeezed by the inner wall of the wire hole 117 and in close contact with the inner wall of the wire hole 117 and the connecting wire 15, achieving a sealing effect.

[0178] If the cover 14 and the first housing portion 111 are sealed together via a first seal located around the second port 1114, the first seal and the third seal 18 may be integral or separate. In this embodiment, the first seal and the third seal 18 are integral to simplify assembly and enhance the sealing performance of the connector 10.

[0179] If the connector 10 includes at least two connector terminals 12 , the number of the connecting wires 15 may be equal to the number of the connector terminals 12 , and each connecting wire 15 is electrically connected to each connector terminal 12 in a one-to-one correspondence.

[0180] 19 , if the connector 10 includes at least two connecting wires 15 , the housing 11 may be formed with wire holes 117 , the number of which is equal to the number of the connecting wires 15 , and each connecting wire 15 passes through a corresponding wire hole 117 .

[0181] Refer to Figure 21, which is a schematic diagram of the exploded structure of the connector 10 provided in some embodiments of the present application. If the connector 10 includes at least two connecting wires 15, all the connecting wires 15 can be connected as one and pass through a wire hole 117 on the housing 11 together.

[0182] The connector 10 further includes a first connector 31 connected to one side of the housing 11. The first connector 31 can be used to securely connect the connector 10 to the compressor 20. Furthermore, the first connector 31 has a connecting hole 311 formed therein, and the connector 10 and the compressor 20 can be securely connected via a second connector 24 extending into the connecting hole 311.

[0183] Connector 10 also includes a sealing ring 17. At least a portion of sealing ring 17 is located on the side of first housing portion 111 where first port 1111 is located and is located outside first port 1111. Sealing ring 17 is capable of providing a seal between connector 10 and compressor 20 when connector 10 is connected to compressor 20. The portion of sealing ring 17 located on the side of first housing portion 111 where first port 1111 is located can be compressed when connector 10 and compressor 20 are secured, thereby improving the tightness of the connection between connector 10 and compressor 20.

[0184] Referring to FIG. 17 , the sealing ring 17 has a sealing surface 178 facing away from the housing 11. Sealing surface 178 is provided with a material reduction opening 173, which is arranged around the first port 1111. The provision of material reduction opening 173 reduces the mass of the sealing ring 17, minimizing the amount of compression of the sealing ring 17. This reduces the rebound force generated by the compression of the sealing ring 17 when the connector 10 is connected to the compressor 20, making the side of the sealing ring 17 away from the first connector 31 less likely to rebound and warp. This alleviates the problem of the connector 10 warping on the side opposite to the compressor 20 when the connector 10 and the compressor 20 are fixed on one side, thereby ensuring the sealing performance of the sealing ring 17 between the connector 10 and the compressor 20.

[0185] Furthermore, the sealing ring 17 has two inclined surfaces 1731 that form the material reduction opening 173. Both inclined surfaces 1731 are inclined relative to the insertion direction of the connector 10 and the compressor 20, and the distance between the two inclined surfaces 1731 gradually decreases along the direction from the opening of the material reduction opening 173 to the bottom wall. In this way, when the sealing ring 17 is squeezed, the inclination of the inclined surfaces 1731 can be used to cause the sealing ring 17 to deform as much as possible toward the material reduction opening 173, thereby increasing the deformation of the sealing ring 17 and enhancing the sealing performance between the connector 10 and the compressor 20.

[0186] The distance between the two inclined surfaces 1731 gradually decreases from the opening of the material reduction opening 173 to the bottom wall. The larger distance at the opening of the material reduction opening 173 can accommodate more deformation of the sealing ring 17, while the smaller distance at the bottom wall can restrain the deformation of the sealing ring 17. Furthermore, the deformation of the sealing ring 17 at the two inclined surfaces 1731 is roughly the same, which can improve the smoothness of the sealing ring 17 during sealing.

[0187] The sealing ring 17 also has a connecting surface 1732 that participates in forming the material reduction opening 173. The connecting surface 1732 is connected between the two inclined surfaces 1731 and is arranged at an angle to both inclined surfaces 1731. By providing the connecting surface 1732, the distance between the two inclined surfaces 1731 at the bottom wall of the material reduction opening 173 can be increased by using the connecting surface 1732, thereby increasing the space to accommodate the deformation of the sealing ring 17. In this case, the material reduction opening 173 has a larger space, and the mass of the sealing ring 17 is reduced, so that the sealing ring 17 has a smaller rebound force after being squeezed between the connector 10 and the compressor 20. Therefore, when the connector 10 is connected to the compressor 20 on only one side, the sealing ring 17 is less likely to warp on the side opposite to where the connector 10 and the compressor 20 are fixed.

[0188] It should be noted that the material reduction port 173 can be the one described above including two inclined surfaces 1731, such as a roughly V-shaped material reduction port; it can also be the one described above including two inclined surfaces 1731 and a connecting surface 1732, such as a roughly U-shaped material reduction port, etc. In addition, the material reduction port 173 can also adopt other shapes, which is not limited to this.

[0189] It is understood that opposite sides of the sealing ring 17 may respectively abut the surface of the compressor 20 and the housing 11 of the connector 10 to achieve a seal between the surface of the compressor 20 and the housing 11. In an exemplary embodiment, the sealing ring 17 may be provided on the port surface of the housing 11 where the first port 1111 is provided. In this case, to achieve a reliable connection between the sealing ring 17 and the housing 11, the sealing ring 17 and the housing 11 may be connected by means of an adhesive or the like to prevent the sealing ring 17 from falling off.

[0190] In another exemplary embodiment, the port surface of the first port 1111 of the shell 11 may be provided with an annular groove 1113, and the annular groove 1113 is arranged around the first port 1111. Part of the sealing ring 17 may be located in the annular groove 1113. The setting of the annular groove 1113 can, on the one hand, position the installation position of the sealing ring 17 on the shell 11, thereby speeding up the assembly speed between the sealing ring 17 and the shell 11; on the other hand, it can restrain the sealing ring 17, thereby accommodating the deformation of the sealing ring 17 caused by extrusion and making it difficult to move.

[0191] The portion of the sealing ring 17 located in the annular groove 1113 may include a first portion 171 and a second portion 172 distributed in the depth direction of the annular groove 1113. The first portion 171 may be located within the annular groove 1113, and the second portion 172 may be located outside the annular groove 1113. The second portion 172 located outside the annular groove 1113 may deform when the connector 10 is connected to the compressor 20, thereby improving the tightness of the connection between the connector 10 and the compressor 20.

[0192] It is understood that the annular groove 1113 may or may not be in communication with the first port 1111. In the embodiment of the present application, the annular groove 1113 is not in communication with the first port 1111 to prevent the sealing ring 17 from deforming toward the inside of the first port 1111 during compression and deformation, thereby affecting the installation stability of the sealing ring 17. It should be noted that the sealing ring 17 can be installed in the annular groove 1113 by snap-fitting or by bonding, etc., without limitation.

[0193] The sealing ring 17 can be any device with sealing performance, such as a sealing ring, etc. In the embodiment of the present application, the sealing ring 17 is a device with elasticity and high heat resistance. The sealing ring 17 has elasticity, so that when the connector 10 is connected to the compressor 20, the sealing ring 17 can be in a compressed state to improve the tightness of the connection between the connector 10 and the compressor 20; and the sealing ring 17 has high heat resistance, which can prevent the sealing ring 17 from being damaged by the surface heat of the compressor 20, and can improve the service life of the sealing ring 17. Specifically, the sealing ring 17 can be made of silicone rubber seals, which are low in cost and have elasticity and high heat resistance.

[0194] The sealing ring 17 may not belong to the connector 10 , and when the connector 10 and the compressor 20 are connected, the sealing ring 17 may be directly provided between the connector 10 and the compressor 20 . This is not limited to this.

[0195] Referring to Figures 22 to 24, Figure 22 is a partial structural diagram of a HVAC system provided in Example 3 of the present application, Figure 23 is a cross-sectional diagram along the EE direction in Figure 22, and Figure 24 is a partial structural diagram of a compressor in the HVAC system shown in Figure 22. The HVAC system includes the aforementioned connector 10 and a compressor 20 connected to the connector 10. The HVAC system may include systems for heating or cooling, such as air conditioners, multi-split units, and heat pumps, which are not limited in this embodiment of the present application.

[0196] The HVAC system includes a connector 10, and the specific structure of the connector 10 refers to the above embodiment. Since the HVAC system adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0197] 22 to 24 , compressor 20 includes compressor terminals 21, which extend into first housing portion 111 via first port 1111 to electrically connect to connector terminals 12. Connector terminals 12 and compressor terminals 21 can be any terminals, as long as they are electrically connectable.

[0198] For example, one of the connector terminal 12 and the compressor terminal 21 can be a male terminal, and the other can be a female terminal. In the embodiment of the present application, the connector terminal 12 is a female terminal, and the compressor terminal 21 is a male terminal. The connector terminal 12 is formed with a socket, and at least a portion of the compressor terminal 21 is inserted into the socket and electrically connected to the connector terminal 12. In other words, when the connector terminal 12 and the compressor terminal 21 are connected, at least a portion of the compressor terminal 21 is surrounded by the connector terminal 12, which can improve the connection reliability between the connector terminal 12 and the compressor terminal 21.

[0199] If the connector 10 includes at least two connector terminals 12 , the compressor 20 includes compressor terminals 21 equal in number to the connector terminals 12 , and each compressor terminal 21 is electrically connected to each connector terminal 12 in a one-to-one correspondence.

[0200] The compressor 20 also includes a second connector 24, which extends into the connection hole 311 of the first connector 31. The connector 10 and the compressor 20 are connected and fixed via the second connector 24 extending into the connection hole 311. The connector 10 and the compressor 20 are connected and fixed via the second connector 24 extending into the connection hole 311. The second connector 24 can pass through one side of the connection hole 311 and connect with the locking member 40, thereby achieving a fixed connection between the connector 10 and the compressor 20. The second connector 24 and the locking member 40 can be connected by a thread. For example, the locking member 40 includes a nut, and the second connector 24 is provided with threads. After the second connector 24 passes through the connection hole 311, it is threadedly connected to the nut. By tightening the nut, the distance between the compressor 20 and the connector 10 can be shortened. Of course, the second connector 24 extending into the connection hole 311 can also be connected to the inner wall of the connection hole 311 by a snap-fit ​​method, etc., and this is not limited to this.

[0201] Referring to Figures 22 to 24, the compressor 20 may also include a terminal seat 23 for fixing the compressor terminal 21. The terminal seat 23 protrudes relative to the casing 25 of the compressor 20. When the compressor terminal 21 is connected to the connector terminal 12, the terminal seat 23 can be located in the second chamber 1118, thereby improving the connection stability between the connector 10 and the compressor 20.

[0202] Example 4:

[0203] Referring to Figures 25 to 29 , an embodiment of the present application provides a connector 10, comprising a housing 11 and a sealing ring 17. The housing 11 is formed with a first port 1111. An annular groove 1113 is provided on one side of the housing 11 where the first port 1111 is located. The annular groove 1113 surrounds the first port 1111 and includes an inner sidewall 11131 and an outer sidewall 11132 surrounding the first port 1111. The inner sidewall 11131 is located inward of the outer sidewall 11132. The sealing ring 17 includes a first portion 171 located within the annular groove 1113. The first portion 171 includes an inner side surface 176 and an outer side surface 177 surrounding the first port 1111. The inner side surface 176 is located inward of the outer side surface 177. At least one of the inner wall 11131 , the outer wall 11132 , the inner side surface 176 and the outer side surface 177 is provided with a rib 19 , so that the first portion 171 is squeezed at the rib 19 .

[0204] The embodiment of the present application provides a rib 19 on the inner wall 11131 and the outer wall 11132 of the annular groove 1113, and at least one of the inner side surface 176 and the outer side surface 177 of the sealing ring 17, so that the first part 171 of the sealing ring 17 located in the annular groove 1113 can be squeezed at the rib 19, thereby increasing the compression amount of the first part 171 in the annular groove 1113. At this time, the rebound force of the first part 171 becomes larger. Under the mutual resistance force between the rebound force and the rib 19, the connection tightness of the first part 171 in the annular groove 1113 can be improved, so that during the transportation of the connector 10, the sealing ring 17 is not easy to fall out of the annular groove 1113, thereby improving the problem in the related art that the flexible sleeve used to seal the connector 10 and the compressor 20 is easy to fall during the transportation of the connector 10.

[0205] It should be noted that at least one of the above-mentioned inner wall 11131, outer wall 11132, inner side surface 176 and outer side surface 177 is provided with a convex rib 19. It can be that any one of the inner wall 11131, outer wall 11132, inner side surface 176 and outer side surface 177 is provided with a convex rib 19; or any two of the inner wall 11131, outer wall 11132, inner side surface 176 and outer side surface 177 are provided with a convex rib 19; or any three of the inner wall 11131, outer wall 11132, inner side surface 176 and outer side surface 177 are provided with a convex rib 19, or the inner wall 11131, outer wall 11132, inner side surface 176 and outer side surface 177 are all provided with a convex rib 19, and so on. The design can be flexibly made in combination with actual conditions and is not limited to this.

[0206] Among them, the shell 11 is provided with an annular groove 1113 on the side where the first port 1111 is located. By providing the annular groove 1113, on the one hand, the installation position of the sealing ring 17 on the shell 11 can be positioned, thereby accelerating the assembly speed between the sealing ring 17 and the shell 11; on the other hand, it can have a restraining effect on the sealing ring 17, thereby accommodating the deformation of the sealing ring 17 caused by extrusion and making it difficult to move.

[0207] It is understood that the annular groove 1113 may or may not be in communication with the first port 1111. In the embodiment of the present application, the annular groove 1113 is not in communication with the first port 1111 to prevent the sealing ring 17 from deforming toward the inside of the first port 1111 during compression and deformation, thereby affecting the installation stability of the sealing ring 17. It should be noted that the sealing ring 17 can be installed in the annular groove 1113 by snap-fitting or by bonding, etc., without limitation.

[0208] The first portion 171 of the sealing ring 17 located within the annular groove 1113 may abut against the surface of the compressor 20 and the housing 11 of the connector 10 on opposite sides thereof, respectively, to achieve a seal between the surface of the compressor 20 and the housing 11. In an exemplary embodiment, to achieve a reliable connection between the sealing ring 17 and the housing 11, the sealing ring 17 and the housing 11 may be connected by means of an adhesive or the like to prevent the sealing ring 17 from falling off.

[0209] The sealing ring 17 also includes a second portion 172 located outside the annular groove 1113 . The second portion 172 is connected to the first portion 171 . The second portion 172 can be deformed when the connector 10 is connected to the compressor 20 to improve the connection tightness between the connector 10 and the compressor 20 .

[0210] The rib 19 can extend along the depth direction of the annular groove 1113. Thus, when the sealing ring 17 is placed in the annular groove 1113, the first portion 171 of the sealing ring 17 located in the annular groove 1113 can be evenly squeezed by the rib 19 in the depth direction of the annular groove 1113, thereby improving the stability of the sealing ring 17 in the annular groove 1113.

[0211] In one embodiment, referring to Figures 27 and 28, if at least one of the inner wall 11131 and the outer wall 11132 is provided with a rib 19, the rib 19 is provided with a guide surface 191 at one end of the notch 11133 near the annular groove 1113. In this way, the guide surface 191 can be used to improve the convenience of assembling the sealing ring 17 in the annular groove 1113.

[0212] The guide surface 191 can be an inclined surface inclined relative to the depth direction of the annular groove 1113, or a curved surface, etc., which is not limited to this. Along the direction from the notch 11133 of the annular groove 1113 to the groove bottom, the inner diameter of the annular groove 1113 at the guide surface 191 gradually decreases. In this way, the diameter of the notch 11133 of the annular groove 1113 can be made larger, which facilitates the assembly of the sealing ring 17 in the annular groove 1113, improves the installation convenience of the sealing ring 17, and improves the installation efficiency of the sealing ring 17; and as the depth of the sealing ring 17 inserted into the annular groove 1113 increases, the sealing ring 17 will be constrained by the rib 19 in the annular groove 1113, so that the extrusion force on the first part 171 of the sealing ring 17 gradually increases, so that the first part 171 is more firmly assembled in the annular groove 1113.

[0213] It should be noted that after passing over the guide surface 191 , the inner diameter of the annular groove 1113 at the rib 19 can remain unchanged, so as to facilitate smooth assembly of the sealing ring 17 .

[0214] Among them, if the inner wall 11131 and / or the outer wall 11132 are provided with a rib 19, the rib 19 may extend to the notch 11133 of the annular groove 1113, or may not extend to the notch 11133, and there is no limitation on this.

[0215] In another embodiment, if at least one of the inner side surface 176 or the outer side surface 177 is provided with a rib 19, and the first portion 171 has an end distal from the second portion 172, the rib 19 is provided with a guide surface 191 at one end proximal to the end. This adjustment further improves the structure of the sealing ring 17, making manufacturing more convenient. In this case, the outer diameter of the first portion 171 at the guide surface 191 gradually increases from the end of the first portion 171 to the second portion 172, facilitating the assembly of the sealing ring 17 into the annular groove 1113 via the end portion. Furthermore, as the sealing ring 17 increases in depth within the annular groove 1113, the extrusion force exerted by the rib 19 on the sealing ring 17 also increases, thereby preventing the sealing ring 17 from falling out of the annular groove 1113.

[0216] It should be noted that after passing over the guide surface 191 , the outer diameter of the first portion 171 at the rib 19 can remain unchanged, so as to facilitate smooth assembly of the sealing ring 17 .

[0217] Among them, if the inner side surface 176 and / or the outer side surface 177 is provided with a rib 19, the rib 19 extends to the end of the first portion 171 away from the second portion 172, or may not extend to the end of the first portion 171 away from the second portion 172, and there is no limitation on this.

[0218] Referring again to Figures 25 and 26 , there are multiple ribs 19, each spaced apart along the circumference of the first port 1111. By providing multiple ribs 19, when the sealing ring 17 is assembled within the annular groove 1113, the ribs 19 can squeeze the first portion 171 of the sealing ring 17 at multiple locations, thereby increasing the tightness of the connection between the first portion 171 and the annular groove 1113 and preventing the sealing ring 17 from falling out of the annular groove 1113. Arranging multiple ribs 19 at intervals along the circumference of the first port 1111 improves the uniformity of the squeezing of the first portion 171 by the ribs 19, compared to concentrating the ribs 19 in a single area.

[0219] The above-mentioned multiple ribs 19 arranged at circumferential intervals along the first port 1111 can be that all the ribs 19 are arranged in the annular groove 1113; or all the ribs 19 are arranged in the first part 171 of the sealing ring 17; or some of the ribs 19 are arranged in the annular groove 1113 and the remaining ribs 19 are arranged in the first part 171 of the sealing ring 17. The design can be flexibly combined with actual conditions and is not limited to this.

[0220] It should be noted that, in addition to being designed to extend along the depth direction of the annular groove 1113 as described above, the rib 19 can also be designed to be disposed in a circumferential manner around the first port 1111. Arranging the rib 19 in a circumferential manner around the first port 1111 can improve the uniformity of the compression of the first portion 171 by the rib 19 in the circumferential direction of the first port 1111, thereby making the compression of the first portion 171 in the annular groove 1113 more uniform and thus making the assembly of the sealing ring 17 in the annular groove 1113 more stable.

[0221] To facilitate assembly of the sealing ring 17 within the annular groove 1113, referring to FIG. 26 , the width L1 of the rib 19 along the radial direction of the first port 1111 is less than or equal to half the width L2 of the annular groove 1113. This ensures that the first portion 171 is compressed against the rib 19 while maintaining ease of installation within the annular groove 1113. It will be appreciated that an excessively large width L1 of the rib 19 will cause the rib 19 to occupy excessive space within the annular groove 1113, potentially hindering assembly of the sealing ring 17. For example, along the radial direction of the first port 1111, the width L1 of the rib 19 can be one-half, one-third, one-quarter, one-fifth, one-sixth, or the like of the width L2 of the annular groove 1113, without limitation.

[0222] In order to improve the installation stability of the sealing ring 17 in the annular groove 1113, in one embodiment, the depth of the annular groove 1113 is greater than the radial width of the annular groove 1113 along the first port 1111. In this way, the depth of the first portion 171 of the sealing ring 17 located in the annular groove 1113 will be greater than the radial width of the first portion 171 along the first port 1111. When the width of the first portion 171 remains unchanged, the greater the depth of the first portion 171, the greater the squeezing force exerted on the sealing ring 17 by the rib 19, thereby generating a greater compression amount, that is, a greater rebound force. Under the mutual resistance between the rebound force and the rib 19, the first portion 171 is not easy to fall off from the annular groove 1113.

[0223] It should be noted that the sealing ring 17 can be used at various locations on the connector 10. For example, the sealing ring 17 can be used at the connection between the housing 11 of the connector 10 and the compressor 20. For another example, the sealing ring 17 can be used at the connection between the housing 11 of the connector 10 and the connecting wire 15, etc., without limitation.

[0224] In the embodiment of the present application, referring to Figures 30 and 31 , a sealing ring 17 is used at the connection between the housing 11 of the connector 10 and the compressor 20. Specifically, a first port 1111 is used for inserting the compressor terminal 21 of the compressor 20 into the housing 11. After the compressor terminal 21 extends into the housing 11 through the first port 1111 and is plugged into the connector terminal 12, the sealing ring 17 can be used to seal the side where the first port 1111 is located, thereby ensuring a good seal between the connector 10 and the compressor 20.

[0225] The sealing ring 17 can be any device with sealing performance, such as a sealing ring, etc. In the embodiment of the present application, the sealing ring 17 is a device with elasticity and high heat resistance. The sealing ring 17 has elasticity, so that when the connector 10 is connected to the compressor 20, the sealing ring 17 can be in a compressed state to improve the tightness of the connection between the connector 10 and the compressor 20; and the sealing ring 17 has high heat resistance, which can prevent the sealing ring 17 from being damaged by the surface heat of the compressor 20, and can improve the service life of the sealing ring 17. Specifically, the sealing ring 17 can be made of silicone rubber seals, which are low in cost and have elasticity and high heat resistance.

[0226] Referring to Figures 27 to 30 , the connector 10 further includes a first connector 31 having a connection hole 311. The compressor 20 is provided with a second connector 24, which passes through the connection hole 311. The compressor 20 further includes a locking member 40, which is located on the side of the first connector 31 away from the compressor 20 and is connected to the second connector 24, thereby pressing the connector 10 against the compressor 20. The arrangement of the first connector 31, the second connector 24, and the locking member 40 allows the connector 10 and the compressor 20 to be connected and secured. When the locking member 40 is locked, it compresses the second portion 172 of the sealing ring 17 outside the annular groove 1113, thereby improving the sealing performance of the sealing ring 17.

[0227] The second connector 24 and the locking member 40 can be connected via threads. For example, the locking member 40 includes a nut, and the second connector 24 is provided with threads. The second connector 24 passes through the connection hole 311 and is threadedly connected to the nut. By tightening the nut, the distance between the compressor 20 and the connector 10 can be shortened. Furthermore, the first connector 31 and the second connector 24 can also be connected via plug-in connection, snap-fit ​​connection, or other methods, which are not limited to this.

[0228] Next, the connector 10 will be further described.

[0229] Continuing with Figures 29 to 31 , the connector 10 includes a housing 11 and a connector terminal 12. The housing 11 defines a first chamber 1117. The connector terminal 12 is located in the first chamber 1117. The housing 11 defines a first port 1111 communicating with the first chamber 1117. The connector terminal 12 is configured to electrically connect to the compressor terminal 21 extending into the first chamber 1117 via the first port 1111.

[0230] The connector 10 may include at least two connector terminals 12, and the housing 11 may be formed with at least two first cavities 1117, the number of which is equal to the number of the at least two connector terminals 12, with each connector terminal 12 being mounted in a one-to-one correspondence within each first cavity 1117. For example, the connector 10 may include two connector terminals 12 and the housing 11 may be formed with two first cavities 1117; alternatively, the connector 10 may include three connector terminals 12 and the housing 11 may be formed with three first cavities 1117, and so on, without limitation.

[0231] It can be understood that when the connector 10 includes at least two connector terminals 12 , the compressor 20 includes at least two compressor terminals 21 equal in number to the at least two connector terminals 12 , and each compressor terminal 21 is electrically connected to each connector terminal 12 in a one-to-one correspondence.

[0232] In some embodiments, the housing 11 may include a first housing portion 111 and a second housing portion 112. The first housing portion 111 is formed with a first port 1111 and a second port 1114 communicating with the first chamber 1117. The connector terminal 12 is mounted on the first housing portion 111 via the second port 1114. The second housing portion 112 is connected to the first housing portion 111. Disassembling the housing 11 into the first housing portion 111 and the second housing portion 112 facilitates assembly of the connector terminal 12.

[0233] It should be noted that when at least two first chambers 1117 are formed on the shell 11, the first shell portion 111 has first ports 1111 equal in number to the first chambers 1117 and second ports 1114 equal in number to the first chambers 1117. Each first port 1111 is connected to each first chamber 1117, and each second port 1114 is connected to each first chamber 1117.

[0234] The first housing portion 111 has a higher heat resistance than the second housing portion 112. Compared to the second housing portion 112, the first housing portion 111 is less likely to deform under high temperature conditions. Therefore, by disposing the first port 1111 on the first housing portion 111, when the connector 10 is connected to the compressor 20, the first housing portion 111 is close to the compressor 20. The first housing portion 111 has a higher heat resistance, which can prevent the internal connector terminals 12 from being softened by high temperatures, thereby extending the service life of the connector terminals 12.

[0235] The first shell portion 111 can be made of a high heat-resistant material. For example, the first shell portion 111 can include at least one of PBT (poly butylene terephthalate) and GF (glass fiber).

[0236] The first housing portion 111 is made of PBT+30% GF, which is a high-temperature resistant and fireproof insulating material, and can prevent the connector terminals 12 from softening during operation.

[0237] The second housing portion 112 can cover the second port 1114 and the connector terminal 12. The provision of the second port 1114 facilitates installation of the connector terminal 12 within the housing 11. The second housing portion 112 covers the second port 1114 and the connector terminal 12, so that when the connector terminal 12 and the compressor terminal 21 are connected, both are enclosed by the housing 11 of the connector 10, thereby preventing the presence of refrigerant near the two, which could easily cause ignition problems when the connector terminal 12 and the compressor terminal 21 are connected.

[0238] The second housing portion 112 may include an injection-molded housing portion connected to the first housing portion 111, and / or the second housing portion 112 may include a glue-filled housing portion connected to the first housing portion 111. The injection-molded housing portion is formed by an injection molding process, and the injection-molded housing portion is connected to the first housing portion 111, so that the injection-molded housing portion and the first housing portion 111 are at least an integrally-molded structure. Specifically, after the first housing portion 111 is molded, at least the first housing portion 111 is placed in a mold to form a cavity for molding the injection-molded housing portion, and then a molding compound is injected into the cavity to obtain the injection-molded housing portion.

[0239] The glue-potted housing portion is formed by a glue-potting process, and the glue-potted housing portion is connected to the first housing portion 111. Therefore, the glue-potted housing portion and the first housing portion 111 are at least an integrally molded structure formed by glue-potting. Specifically, the first housing portion 111 is formed with a molding groove, and at least the molding groove participates in constructing the glue-potted housing portion. Then, molding material is injected into the molding groove to obtain the glue-potted housing portion.

[0240] In summary, whether the second housing portion 112 includes an injection-molded housing portion or a glue-filled housing portion, the second housing portion 112 and the first housing portion 111 can be integrally formed. Compared to independently molding the second housing portion 112 and the first housing portion 111 and then assembling them, the tightness of the connection between the second housing portion 112 and the first housing portion 111 can be improved, as can the sealing between the second housing portion 112 and the first housing portion 111. The second housing portion 112 and the first housing portion 111 of the connector 10 are sealed, and when the connector 10 is connected to the compressor 20, the first housing portion 111 and the surface of the compressor 20 are sealed due to the presence of the sealing ring 17. In this way, the overall sealing of the connector 10 can be improved.

[0241] The second housing portion 112 can be made of a sealant shell, which provides excellent sealing performance. The second housing portion 112 can be elastic or non-elastic, allowing for flexible design based on actual needs. In the embodiment of the present application, the second housing portion 112 can be made of PVC (Polyvinyl chloride), which has excellent elasticity and sealing properties. The second housing portion 112 can be made of plastic or silicone, without limitation.

[0242] To improve the connection reliability between the second housing portion 112 and the first housing portion 111, one of the second housing portion 112 and the first housing portion 111 can be provided with a hook 1121, and the other can be provided with a slot 1112 that matches the hook 1121, with the hook 1121 located within the slot 1112. The second housing portion 112 and the first housing portion 111 can be hooked together via the hook 1121, making them difficult to separate. It is understood that the second housing portion 112 can be provided with the hook 1121 and the first housing portion 111 can be provided with the slot 1112; alternatively, the second housing portion 112 can be provided with the slot 1112 and the first housing portion 111 can be provided with the hook 1121, without limitation.

[0243] It is understandable that the second housing portion 112 can be integrally formed as an injection-molded housing portion, or the second housing portion 112 can be integrally formed as a glue-potted housing portion, so as to simplify the processing technology of the second housing portion 112 and reduce the manufacturing cost of the connector 10 .

[0244] The connector 10 also includes a cover member that covers the second port 1114, and the second housing portion 112 covers the cover member. The cover member prevents moisture, dust, and other impurities from entering the first housing portion 111 and affecting the performance of the connector terminal 12. Furthermore, when the second housing portion 112 includes an injection-molded housing portion or a potted housing portion, the cover member prevents the molding compound of the second housing portion 112 from passing through the second port 1114 and reaching the connector terminal 12, thereby encasing the connector terminal 12 and ensuring effective electrical connection between the connector terminal 12 and the compressor terminal 21.

[0245] The connector terminal 12 and the cover member may abut or have a gap therebetween. If there is a gap between the connector terminal 12 and the cover member, the connector terminal 12 can be deformed toward the gap when plugged into the compressor terminal 21, thereby preventing the connector terminal 12 and the compressor terminal 21 from being damaged by forced insertion.

[0246] The cover assembly may include a cover plate 14 , the cover plate 14 covers the second port 1114 and the connector terminal 12 , and the second housing portion 112 covers the cover plate 14 .

[0247] One of the cover plate 14 and the first housing portion 111 can be provided with a limiting protrusion 141, and the other can be provided with a limiting groove 1116, with the limiting protrusion 141 located within the limiting groove 1116. The provision of the limiting protrusion 141 and the limiting groove 1116 can facilitate positioning of the cover plate 14 and the first housing portion 111 during assembly, thereby improving assembly efficiency of the cover plate 14 and the first housing portion 111. It is understood that the limiting protrusion 141 can be provided on the cover plate 14 and the limiting groove 1116 can be provided on the first housing portion 111; alternatively, the limiting groove 1116 can be provided on the cover plate 14 and the limiting protrusion 141 can be provided on the first housing portion 111, without limitation. In the embodiment of the present application, a limiting protrusion 141 is provided on the cover plate 14, and a limiting groove 1116 is provided on the first shell portion 111. Since the cover plate 14 is relatively thin, providing the limiting protrusion 141 on the cover plate 14 is more conducive to improving the structural strength of the cover plate 14 than the limiting groove 1116.

[0248] If the housing 11 is formed with a plurality of first chambers 1117 and a plurality of second ports 1114 , the cover 14 covers all the second ports 1114 .

[0249] The housing 11 (e.g., the first housing portion 111) may further include a second chamber 1118 in communication with the first chamber 1117. The second chamber 1118 is closer to the compressor 20 than the first chamber 1117. Along the plugging direction, the cross-sectional profile of the second chamber 1118 is larger than the cross-sectional profiles of all first chambers 1117. Furthermore, along the plugging direction, the cross-sectional profiles of all first chambers 1117 are located within the cross-sectional profile of the second chamber 1118. Thus, when the connector 10 includes at least two connector terminals 12 and the compressor 20 includes at least two compressor terminals 21, when the compressor terminals 21 are connected to the connector terminals 12, all compressor terminals 21 can pass through the second chamber 1118 and then reach the corresponding first chamber 1117, thereby achieving electrical connection with the corresponding connector terminals 12. Furthermore, the compressor 20 may include a terminal seat 23 for fixing the compressor terminal 21 , and the terminal seat 23 protrudes relative to the compressor body. When the compressor terminal 21 is connected to the connector terminal 12 , the terminal seat 23 may be located in the second chamber 1118 .

[0250] It is understandable that the annular groove 1113 may or may not be in communication with the second chamber 1118. In the embodiment of the present application, the annular groove 1113 is not in communication with the second chamber 1118, which can prevent the sealing ring 17 from deforming toward the second chamber 1118 during compression and deformation, thereby affecting the installation stability of the sealing ring 17.

[0251] The connector 10 also includes a connecting wire 15, which is electrically connected to the connector terminal 12 and is used to enable signal interaction between the compressor 20 and the outside world when the connector terminal 12 is connected to the compressor terminal 21. Among them, the end of the connecting wire 15 connected to the connector terminal 12 is wrapped by the second shell portion 112 to improve the connection reliability between the connecting wire 15 and the connector terminal 12 and improve the sealing of the connector 10. Specifically, when the second shell portion 112 includes an injection molding shell portion and / or a glue-filling shell portion, the second shell portion 112 can directly wrap the end of the connecting wire 15 connected to the connector terminal 12 during injection molding and / or glue-filling. If the connector 10 includes multiple connector terminals 12, the connecting wire 15 is electrically connected to the multiple connector terminals 12.

[0252] The connector terminal 12 can be any terminal, and the compressor terminal 21 can be any terminal, as long as the compressor terminal 21 and the connector terminal 12 can be electrically connected.

[0253] For example, one of the connector terminal 12 and the compressor terminal 21 can be a male terminal, and the other can be a female terminal. In the embodiment of the present application, the connector terminal 12 is a female terminal, and the compressor terminal 21 is a male terminal. The connector terminal 12 is formed with a socket, and at least a portion of the compressor terminal 21 is inserted into the socket and electrically connected to the connector terminal 12. In other words, when the connector terminal 12 and the compressor terminal 21 are connected, at least a portion of the compressor terminal 21 is surrounded by the connector terminal 12, which can improve the connection reliability between the connector terminal 12 and the compressor terminal 21.

[0254] Embodiment 5:

[0255] The embodiment of the present application provides a HVAC system, which includes the connector 10 and the compressor 20, wherein the connector 10 is electrically connected to the compressor 20. The HVAC system may include an air conditioner, a multi-split unit, a heat pump, or other heating or cooling system, which is not limited in the embodiment of the present application.

[0256] The HVAC system includes a sealing ring 17 and a connector 10. The specific structures of the sealing ring 17 and the connector 10 refer to the above embodiments. Since the HVAC system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here.

[0257] Referring to Figure 32 , the HVAC system includes a connector 10, a compressor 20, and a fixing structure 30. Connector 10 and compressor 20 are plugged into each other, establishing an electrical connection between connector terminals 12 of connector 10 and compressor terminals 21 of compressor 20 (see Figure 37 ). Fixing structure 30 is used to secure the electrically connected connector 10 and compressor 20.

[0258] That is, when the fixing structure 30 is used, the connector 10 and the compressor 20 are first plugged and electrically connected, and then the electrically connected connector 10 and the compressor 20 are fixed by the fixing structure 30 .

[0259] After the connector and the compressor are electrically connected, in the related art, the connector and the compressor are usually fixed only by the first connector located on one side of the connector. This will cause the side of the connector away from the first connector to be tilted relative to the compressor. Based on this, referring to Figures 32 and 33, the fixing structure 30 of the embodiment of the present application is designed to include a first connector 31 and a pressure plate 32. The pressure plate 32 has a pressing surface 321 and a back surface 322 that are opposite to each other along the first direction x. The pressure plate 32 is located at the end of the connector 10 away from the compressor 20, and the pressing surface 321 faces the connector 10. The first connector 31 is connected to the pressure plate 32. The first connector 31 is located on one side of the connector 10. The first connector 31 is connected to the compressor 20 so that the pressing surface 321 presses against the connector 10.

[0260] Specifically, the fixing structure 30 of the embodiment of the present application is connected to the compressor 20 through the first connecting member 31 on the side of the connector 10, and is pressed by the pressure plate 32 at the end of the connector 10 away from the compressor 20. In this way, the connecting force between the first connecting member 31 on the side and the compressor 20 can be transmitted to the pressure plate 32, and the connector 10 is pressed by the pressure plate 32, thereby improving the problem in the related art that the connector is only connected to the compressor on one side, causing the other side to be tilted.

[0261] Among them, the first direction x can be roughly parallel to the plug-in direction of the compressor terminal 21 and the connector terminal 12, so that when the fixing structure 30 fixes the connector 10 and the compressor 20, the compressor terminal 21 and the connector terminal 12 can move relative to each other along the plug-in direction. Compared with moving in a direction intersecting with the plug-in direction, the risk of breaking the compressor terminal 21 and the connector terminal 12 can be avoided.

[0262] The pressing plate 32 may cover at least a portion of the first end surface 113 of the connector 10 away from the compressor 20. In this way, the pressing surface 321 may at least press the portion of the first end surface 113 that it covers.

[0263] For example, in some embodiments, referring to Figures 32 and 33 , the pressure plate 32 covers the entire first end surface 113. In this case, the pressure applied by the pressure plate 32 to various portions of the first end surface 113 of the connector 10 can be relatively evenly distributed, thereby better preventing the connector 10 from warping relative to the compressor 20 on the side away from the first connector 31.

[0264] For example, in other embodiments, referring to Figures 34 and 35 , the pressure plate 32 covers a portion of the first end surface 113. In this case, the size of the fixing structure 30 can be reduced. For example, the pressure plate 32 covers a portion of the edge of the first end surface 113 close to the first connector 31, a portion of the edge of the first end surface 113 away from the first connector 31, a middle region 1131 of the first end surface 113, and so on, without limitation.

[0265] It should be noted that if the area of ​​the first end surface 113 covered by the pressing plate 32 is not close to the first connector 31, referring to Figures 34 and 35, the fixing structure 30 may further include a connecting plate 35 connecting the pressing plate 32 and the first connector 31. The connecting plate 35 is configured to be spaced apart from the first end surface 113 of the connector 10. In other words, the connecting plate 35 serves to connect the pressing plate 32 and the first connector 31 and does not press against the first end surface 113.

[0266] In the embodiment of the present application, referring to Figures 34 and 35 , the portion of the area covered by the pressure plate 32 on the first end surface 113 is the middle area 1131 of the first end surface 113, and the pressure plate 32 is connected to the first connector 31 via the connecting plate 35. This allows the pressure plate 32 to press against the middle area 1131 of the first end surface 113, thereby better alleviating the problem of warping on the side of the connector 10 away from the first connector 31.

[0267] It should be noted that, in addition to the middle region 1131, the first end surface 113 may also include an edge region disposed around the middle region. The middle region 1131 may include the center point of the first end surface 113 or may be offset from the center point of the first end surface 113 to reduce the placement accuracy of the pressure plate 32 and lower assembly costs, without limitation.

[0268] 32 and 33 , the fixing structure 30 may further include a protrusion 33 located on one side of the pressing surface 321 of the pressure plate 32 and projecting outward from the pressing surface 321. A first accommodating region 34 for accommodating at least a portion of the connector 10 is defined between the protrusion 33 and the pressing surface 321. The first accommodating region 34 facilitates rapid alignment of the fixing structure 30 and the connector 10 and enhances the mutual restraint between the fixing structure 30 and the connector 10, thereby better enabling the pressing of the pressure plate 32 against the connector 10.

[0269] For example, in some embodiments, the protrusion 33 and the first connector 31 are located on opposite sides of the pressure plate 32, and a first accommodation region 34 is formed between the protrusion 33, the first connector 31, and the pressing surface 321. In this manner, the protrusion 33 and the first connector 31 can constrain the two opposing sides of the connector 10 within the first accommodation region 34. This reduces the difficulty of assembling and aligning the fixing structure 30 with the connector 10, compared to constraining the entire circumference of the connector 10. In this case, the protrusion 33 can engage the pressure plate 32.

[0270] For example, in some other embodiments, the protrusions 33 are arranged in a circle around the first direction x. Thus, when at least a portion of the connector 10 is placed within the first accommodation region 34, the protrusions 33 can be arranged around the periphery of the connector 10, thereby constraining the entire circumference of the connector 10 and providing a better alignment and restraint effect on the connector 10. In this case, the protrusions 33 can connect to the pressure plate 32 and / or the first connector 31.

[0271] The first connector 31 and the pressure plate 32 in the fixed structure 30 can be integrally formed. This can reduce the manufacturing cost of the fixed structure 30 and improve the connection strength between the first connector 31 and the pressure plate 32. For example, the first connector 31 and the pressure plate 32 can be integrally formed using a process such as injection molding, without limitation. Of course, the first connector 31 and the pressure plate 32 can also be formed separately and then connected to each other. For example, the first connector 31 and the pressure plate 32 can be connected using welding, clamping, screwing, etc., without limitation.

[0272] Optionally, the entire fixing structure 30 may be an integrally formed structure to enhance the structural strength of the fixing structure 30. For example, when the fixing structure 30 includes a first connecting member 31, a pressing plate 32, a protrusion 33, and a connecting plate 35, the first connecting member 31, the pressing plate 32, the protrusion 33, and the connecting plate 35 may be integrally formed, without limitation.

[0273] The fixing structure 30 of the embodiment of the present application can be made of high-strength materials. For example, the fixing structure 30 can be a metal part and / or a plastic part, etc., which is not limited to this.

[0274] The first connector 31 is connected to the compressor 20 along the first direction x. The first connector 31 is provided with a connection hole 311, which is used to fit the second connector 24 of the compressor 20. Furthermore, the side of the second connector 24 that passes through the connection hole 311 can be connected to the locking member 40, thereby pressing the connector 10 against the compressor 20.

[0275] The second connector 24 and the locking member 40 may be threadedly connected. For example, the locking member 40 may include a nut, and the second connector 24 may be threaded. The second connector 24 may pass through the connection hole 311 and be threadedly connected to the nut. Tightening the nut may shorten the distance between the compressor 20 and the connector 10.

[0276] In some embodiments, as shown in Figure 36 , a second accommodating region 118 is provided on the side of the connector 10, with at least a portion of the first connector 31 located within the second accommodating region 118. This improves the stability of the connection between the connector 10 and the fixed structure 30. As shown in Figure 36 , the second accommodating region 118 is located on one side of the first connector 31 of the fixed structure 30, thereby reducing the size of the connector 10. Of course, the second accommodating region 118 can also be disposed around the periphery of the first connector 31 of the fixed structure 30, without limitation.

[0277] Furthermore, the second accommodation area 118 may be provided with either a guide block or a guide groove extending along the first direction x. The first connecting member 31 of the fixed structure 30 may also be provided with the other of the guide block and the guide groove. The guide block may be slidably disposed within the guide groove. This further enhances the connection stability between the connector 10 and the fixed structure 30.

[0278] Referring to Figures 32 to 35 , along the first direction x, the distance between the pressing surface 321 of the pressure plate 32 and the first surface 312 of the first connector 31 facing the compressor 20 is H1. Along the first direction x, the distance between the first end surface 113 of the connector 10 and the second end surface 114 of the connector 10 facing the compressor 20 is H2, with H1 ≤ H2. This ensures that the connector 10 and the compressor 20 are firmly pressed against each other when the first connector 31 is connected.

[0279] If H1 < H2, then after the fixing structure 30 presses and secures the connector 10 and the compressor 20, the first connector 31 is approximately spaced apart from the compressor 20, ensuring that the first connector 31 has sufficient downward travel to achieve a tight contact between the connector 10 and the compressor 20. If H1 = H2, then while the fixing structure 30 presses and secures the connector 10 and the compressor 20, the first surface 312 of the first connector 31 is approximately in contact with the compressor 20, providing good support for the pressure plate 32.

[0280] Referring to FIG. 37 , connector 10 may further include a sealing ring 17, at least a portion of which protrudes from second end surface 114. The provision of sealing ring 17 can seal the interface between connector 10 and compressor 20. The portion of sealing ring 17 protruding from second end surface 114 can be compressed when securing connector 10 and compressor 20 by securing structure 30, thereby enhancing the tightness of the connection between connector 10 and compressor 20.

[0281] It is understood that opposite sides of the sealing ring 17 may respectively abut the surface of the compressor 20 and the housing 11 of the connector 10 to achieve a seal between the surface of the compressor 20 and the housing 11. In an exemplary embodiment, the sealing ring 17 may be disposed on the second end surface 114 of the housing 11. In this case, to achieve a reliable connection between the sealing ring 17 and the housing 11, the sealing ring 17 and the housing 11 may be connected by means of an adhesive or the like to prevent the sealing ring 17 from falling off.

[0282] In another exemplary embodiment, the second end face 114 of the outer shell 11 may be provided with an annular groove 1113, and part of the sealing ring 17 may be located in the annular groove 1113. The setting of the annular groove 1113 can, on the one hand, position the installation position of the sealing ring 17 on the outer shell 11, thereby speeding up the assembly speed between the sealing ring 17 and the outer shell 11; on the other hand, it can restrain the sealing ring 17, thereby accommodating the deformation of the sealing ring 17 caused by extrusion and making it difficult to move.

[0283] The portion of the sealing ring 17 located in the annular groove 1113 may include: the sealing ring 17 includes a first portion 171 and a second portion 172 distributed in the depth direction of the annular groove 1113, the first portion 171 may be located within the annular groove 1113, and the second portion 172 may be located outside the annular groove 1113. The second portion 172 located outside the annular groove 1113 may deform when the fixing structure 30 fixes the connector 10 and the compressor 20, thereby improving the tightness of the connection between the connector 10 and the compressor 20.

[0284] The sealing ring 17 can be installed in the annular groove 1113 by snapping, or by bonding or other methods, which is not limited to this.

[0285] The sealing ring 17 can be any device with sealing performance, such as a sealing ring, etc. In the embodiment of the present application, the sealing ring 17 is a device with elasticity and high heat resistance. The sealing ring 17 has elasticity, so that when the connector 10 is connected to the compressor 20, the sealing ring 17 can be in a compressed state to improve the tightness of the connection between the connector 10 and the compressor 20; and the sealing ring 17 has high heat resistance, which can prevent the sealing ring 17 from being damaged by the surface heat of the compressor 20, and can improve the service life of the sealing ring 17. Specifically, the sealing ring 17 can be made of silicone rubber seals, which are low in cost and have elasticity and high heat resistance.

[0286] Next, the connector 10 will be further described.

[0287] 37 , connector 10 includes a housing 11 and connector terminals 12. Housing 11 defines a first cavity 1117. Connector terminals 12 are located within first cavity 1117. Housing 11 defines a first port 1111 communicating with first cavity 1117. Connector terminals 12 are configured to electrically connect to compressor terminals 21 extending into first cavity 1117 via first port 1111.

[0288] The connector 10 may include at least two connector terminals 12, and the housing 11 may be formed with at least two first cavities 1117, the number of which is equal to the number of the at least two connector terminals 12, with each connector terminal 12 being mounted in a one-to-one correspondence within each first cavity 1117. For example, the connector 10 may include two connector terminals 12 and the housing 11 may be formed with two first cavities 1117; alternatively, the connector 10 may include three connector terminals 12 and the housing 11 may be formed with three first cavities 1117, and so on, without limitation.

[0289] It can be understood that when the connector 10 includes at least two connector terminals 12 , the compressor 20 includes at least two compressor terminals 21 equal in number to the at least two connector terminals 12 , and each compressor terminal 21 is electrically connected to each connector terminal 12 in a one-to-one correspondence.

[0290] In some embodiments, the housing 11 may include a first housing portion 111 and a second housing portion 112. The first housing portion 111 is formed with a first port 1111 and a second port 1114 communicating with the first chamber 1117. The connector terminal 12 is mounted on the first housing portion 111 via the second port 1114. The second housing portion 112 is connected to the first housing portion 111. Disassembling the housing 11 into the first housing portion 111 and the second housing portion 112 facilitates assembly of the connector terminal 12.

[0291] It should be noted that when at least two first chambers 1117 are formed on the housing 11 , the first housing portion 111 has the same number of second ports 1114 as the number of the first chambers 1117 , and each second port 1114 is correspondingly connected to each first chamber 1117 .

[0292] The first housing portion 111 has a higher heat resistance than the second housing portion 112. Compared to the second housing portion 112, the first housing portion 111 is less likely to deform under high temperature conditions. Therefore, by disposing the first port 1111 on the first housing portion 111, when the connector 10 is connected to the compressor 20, the first housing portion 111 is close to the compressor 20. The first housing portion 111 has a higher heat resistance, which can prevent the internal connector terminals 12 from being softened by high temperatures, thereby extending the service life of the connector terminals 12.

[0293] If the connector 10 includes a sealing ring 17, the sealing ring 17 is connected to the first housing portion 111. The sealing ring 17 is arranged on the first housing portion 111. Even if heat from the surface of the compressor 20 is transferred to the sealing ring 17 and the first housing portion 111, the first housing portion 111 is not easily deformed. This provides a stable support effect for the sealing ring 17, ensuring the sealing performance between the compressor 20 and the connector 10, while also ensuring a stable connection between the compressor 20 and the connector 10.

[0294] The first housing portion 111 can be made of a highly heat-resistant material. For example, the first housing portion 111 can include at least one of PBT (poly butylene terephthalate) and GF (glass fiber). In the embodiment of the present application, the first housing portion 111 is made of PBT + 30% GF, a high-temperature and fire-resistant insulation material that prevents softening of the connector terminals 12 during operation.

[0295] The second housing portion 112 can cover the second port 1114 and the connector terminal 12. The provision of the second port 1114 facilitates installation of the connector terminal 12 within the housing 11. The second housing portion 112 covers the second port 1114 and the connector terminal 12, allowing the connector terminal 12 and the compressor terminal 21 to be enclosed by the housing 11 of the connector 10 when connected. This prevents the presence of refrigerant near the connector terminals, which could easily cause sparks when the connector terminals 12 and the compressor terminals 21 are connected. The first housing portion 111 can have a second end surface 114, and the second housing portion 112 can have a first end surface 113.

[0296] The second housing portion 112 may include an injection-molded housing portion connected to the first housing portion 111, and / or the second housing portion 112 may include a glue-filled housing portion connected to the first housing portion 111. The injection-molded housing portion is formed by an injection molding process, and the injection-molded housing portion is connected to the first housing portion 111, so that the injection-molded housing portion and the first housing portion 111 are at least an integrally-molded structure. Specifically, after the first housing portion 111 is molded, at least the first housing portion 111 is placed in a mold to form a cavity for molding the injection-molded housing portion, and then a molding compound is injected into the cavity to obtain the injection-molded housing portion.

[0297] The glue-potted housing portion is formed by a glue-potting process, and the glue-potted housing portion is connected to the first housing portion 111. Therefore, the glue-potted housing portion and the first housing portion 111 are at least an integrally molded structure formed by glue-potting. Specifically, the first housing portion 111 is formed with a molding groove, and at least the molding groove participates in constructing the glue-potted housing portion. Then, molding material is injected into the molding groove to obtain the glue-potted housing portion.

[0298] In summary, whether the second housing portion 112 includes an injection-molded housing portion or a glue-filled housing portion, the second housing portion 112 and the first housing portion 111 can be integrally formed. Compared to independently molding the second housing portion 112 and the first housing portion 111 and then assembling them, the tightness of the connection between the second housing portion 112 and the first housing portion 111 can be improved, as can the sealing between the second housing portion 112 and the first housing portion 111. The second housing portion 112 and the first housing portion 111 of the connector 10 are sealed, and when the connector 10 is connected to the compressor 20, the first housing portion 111 and the surface of the compressor 20 are sealed due to the presence of the sealing ring 17. In this way, the overall sealing of the connector 10 can be improved.

[0299] The second housing portion 112 can be made of a sealant shell, which provides excellent sealing performance. The second housing portion 112 can be elastic or non-elastic, allowing for flexible design based on actual needs. In the embodiment of the present application, the second housing portion 112 can be made of PVC (Polyvinyl chloride), which has excellent elasticity and sealing properties. The second housing portion 112 can be made of plastic or silicone, without limitation.

[0300] To improve the connection reliability between the second housing portion 112 and the first housing portion 111, one of the second housing portion 112 and the first housing portion 111 can be provided with a hook 1121, and the other can be provided with a slot 1112 that matches the hook 1121, with the hook 1121 located within the slot 1112. The second housing portion 112 and the first housing portion 111 can be hooked together via the hook 1121, making them difficult to separate. It is understood that the second housing portion 112 can be provided with the hook 1121 and the first housing portion 111 can be provided with the slot 1112; alternatively, the second housing portion 112 can be provided with the slot 1112 and the first housing portion 111 can be provided with the hook 1121, without limitation.

[0301] It is understandable that the second housing portion 112 can be integrally formed as an injection-molded housing portion, or the second housing portion 112 can be integrally formed as a glue-potted housing portion, so as to simplify the processing technology of the second housing portion 112 and reduce the manufacturing cost of the connector 10 .

[0302] The connector 10 also includes a cover member that covers the second port 1114, and the second housing portion 112 covers the cover member. The cover member prevents moisture, dust, and other impurities from entering the first housing portion 111 and affecting the performance of the connector terminal 12. Furthermore, when the second housing portion 112 includes an injection-molded housing portion or a potted housing portion, the cover member prevents the molding compound of the second housing portion 112 from passing through the second port 1114 and reaching the connector terminal 12, thereby encasing the connector terminal 12 and ensuring effective electrical connection between the connector terminal 12 and the compressor terminal 21.

[0303] The connector terminal 12 and the cover member may abut or have a gap therebetween. If there is a gap between the connector terminal 12 and the cover member, the connector terminal 12 can be deformed toward the gap when plugged into the compressor terminal 21, thereby preventing the connector terminal 12 and the compressor terminal 21 from being damaged by forced insertion.

[0304] The cover assembly may include a cover plate 14 , the cover plate 14 covers the second port 1114 and the connector terminal 12 , and the second housing portion 112 covers the cover plate 14 .

[0305] One of the cover plate 14 and the first housing portion 111 can be provided with a limiting protrusion 141, and the other can be provided with a limiting groove 1116, with the limiting protrusion 141 located within the limiting groove 1116. The provision of the limiting protrusion 141 and the limiting groove 1116 can facilitate positioning of the cover plate 14 and the first housing portion 111 during assembly, thereby improving assembly efficiency of the cover plate 14 and the first housing portion 111. It is understood that the limiting protrusion 141 can be provided on the cover plate 14 and the limiting groove 1116 can be provided on the first housing portion 111; alternatively, the limiting groove 1116 can be provided on the cover plate 14 and the limiting protrusion 141 can be provided on the first housing portion 111, without limitation. In the embodiment of the present application, a limiting protrusion 141 is provided on the cover plate 14, and a limiting groove 1116 is provided on the first shell portion 111. Since the cover plate 14 is relatively thin, providing the limiting protrusion 141 on the cover plate 14 is more conducive to improving the structural strength of the cover plate 14 than the limiting groove 1116.

[0306] If the housing 11 is formed with a plurality of first chambers 1117 and a plurality of second ports 1114 , the cover 14 covers all the second ports 1114 .

[0307] The housing 11 (e.g., the first housing portion 111) may further include a second chamber 1118 communicating with the first chamber 1117. A side of the second chamber 1118 facing away from the first chamber 1117 forms a first port 1111. The second chamber 1118 is closer to the compressor 20 than the first chamber 1117. Along the insertion direction, the cross-sectional profile of the second chamber 1118 is larger than the cross-sectional profiles of all first chambers 1117. Furthermore, along the insertion direction, the cross-sectional profiles of all first chambers 1117 lie within the cross-sectional profile of the second chamber 1118. Thus, when the connector 10 includes at least two connector terminals 12 and the compressor 20 includes at least two compressor terminals 21, when the compressor terminals 21 are connected to the connector terminals 12, all compressor terminals 21 can pass through the second chamber 1118 and into the corresponding first chamber 1117, thereby achieving electrical connection with the corresponding connector terminals 12. Furthermore, the compressor 20 may include a terminal seat 23 for fixing the compressor terminal 21 , and the terminal seat 23 protrudes relative to the compressor body. When the compressor terminal 21 is connected to the connector terminal 12 , the terminal seat 23 may be located in the second chamber 1118 .

[0308] It is understandable that the annular groove 1113 may or may not be in communication with the second chamber 1118. In the embodiment of the present application, the annular groove 1113 is not in communication with the second chamber 1118, which can prevent the sealing ring 17 from deforming toward the second chamber 1118 during compression and deformation, thereby affecting the installation stability of the sealing ring 17.

[0309] The connector 10 also includes a connecting wire 15, which is electrically connected to the connector terminal 12 and is used to enable signal interaction between the compressor 20 and the outside world when the connector terminal 12 is connected to the compressor terminal 21. Among them, the end of the connecting wire 15 connected to the connector terminal 12 is wrapped by the second shell portion 112 to improve the connection reliability between the connecting wire 15 and the connector terminal 12 and improve the sealing of the connector 10. Specifically, when the second shell portion 112 includes an injection molding shell portion and / or a glue-filling shell portion, the second shell portion 112 can directly wrap the end of the connecting wire 15 connected to the connector terminal 12 during injection molding and / or glue-filling. If the connector 10 includes multiple connector terminals 12, the connecting wire 15 is electrically connected to the multiple connector terminals 12.

[0310] The connector terminal 12 can be any terminal, and the compressor terminal 21 can be any terminal, as long as the compressor terminal 21 and the connector terminal 12 can be electrically connected.

[0311] For example, one of the connector terminal 12 and the compressor terminal 21 can be a male terminal, and the other can be a female terminal. In the embodiment of the present application, the connector terminal 12 is a female terminal, and the compressor terminal 21 is a male terminal. The connector terminal 12 is formed with a socket, and at least a portion of the compressor terminal 21 is inserted into the socket and electrically connected to the connector terminal 12. In other words, when the connector terminal 12 and the compressor terminal 21 are connected, at least a portion of the compressor terminal 21 is surrounded by the connector terminal 12, which can improve the connection reliability between the connector terminal 12 and the compressor terminal 21.

[0312] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to at least two, for example, two, three, four, etc. "and / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0313] The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Therefore, equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A sealing ring, wherein: The sealing ring is used in a connector. The sealing ring is provided with a material reduction opening, and the material reduction opening is arranged around the circumference of the sealing ring.

2. The sealing ring according to claim 1, wherein: The material reduction port is arranged around the entire circumference of the sealing ring.

3. The sealing ring according to claim 1, wherein: The material reduction port includes a plurality of sub-material reduction ports spaced apart around the circumference of the sealing ring.

4. The sealing ring according to claim 1, wherein: The sealing ring has a first side surface and a second side surface that are opposite to each other in the axial direction, and at least one of the first side surface and the second side surface is provided with the material reduction port.

5. The sealing ring according to claim 4, wherein: The sealing ring has two inclined surfaces that participate in forming the material reduction port. Both inclined surfaces are inclined relative to the axial direction of the sealing ring, and the distance between the two inclined surfaces gradually decreases along the direction from the opening of the material reduction port to the bottom wall.

6. The sealing ring according to claim 5, wherein: The sealing ring further comprises a connecting surface that participates in forming the material reduction port, the connecting surface is connected between the two inclined surfaces, and the connecting surface and the two inclined surfaces are arranged at an angle.

7. The sealing ring according to claim 1, wherein: The sealing ring has an inner side surface and an outer side surface which are circumferentially arranged. The inner side surface is located inside the outer side surface. At least one of the inner side surface and the outer side surface is provided with the material reduction port.

8. A connector, wherein: The connector comprises: A sealing ring, wherein the sealing ring is provided with a material reduction opening, and the material reduction opening is arranged around the circumference of the sealing ring; The housing is provided, and at least a portion of the sealing ring protrudes from the housing.

9. The connector according to claim 8, wherein The housing is formed with a first port for allowing the compressor terminal to extend into the housing. The sealing ring is arranged on the side of the housing where the first port is located, and when observed along the first port, the sealing ring is arranged around the first port.

10. The connector according to claim 9, wherein The housing is provided with an annular groove on the side where the first port is located. When viewed along the first port, the annular groove is arranged around the first port. The sealing ring includes a first part and a second part distributed along the axial direction. The first part is located in the annular groove and the second part is located outside the annular groove. The first part is connected to the second part. The connector according to claim 10 , wherein: Along the axial direction of the sealing ring, a ratio of the height of the second portion to the height of the sealing ring is greater than or equal to 5% and less than or equal to 50%; And / or, the first portion is provided with the material reduction opening, and the first portion and the inner wall of the annular groove form a material reduction gap at the material reduction opening.

12. The connector according to claim 8, wherein: The housing has a first end surface and a second end surface opposite to each other along a first direction, the second end surface is formed with a first port, and the housing further has a through hole penetrating the housing along the first direction, the through hole being located in the first port; The first port is used for the compressor terminal of the compressor to extend into the housing, and the through hole is used for the connector of the compressor to extend through the first port, so that the connector is connected to the compressor.

13. The connector according to claim 12, wherein Also includes: The connector terminal is formed with a first cavity in which the connector terminal is arranged. When viewed along the first port, the first cavity is located within the first port and is connected to the first port. The connector terminal is used to be electrically connected to the compressor terminal, and the first cavity is separated from the through hole.

14. The connector according to claim 13, wherein The connector includes a plurality of connector terminals, the housing is formed with a plurality of first cavities, each of the connector terminals is located in each of the first cavities in a one-to-one correspondence, and when viewed along the first port, the through hole is located between the plurality of first cavities.

15. The connector according to claim 12, wherein The housing is formed with a second chamber, the second chamber extending from the second end surface toward the first end surface, and the second chamber forms the first port on the second end surface side.

16. The connector according to claim 15, wherein Also includes: A connecting sleeve is located in the second chamber and is connected to the bottom wall of the second chamber away from the second end surface. The connecting sleeve is arranged around the periphery of the through hole and is used to be sleeved around the periphery of the connecting piece.

17. The connector according to claim 16, wherein Also includes: A first sealing member is used to be sleeved around the periphery of the connecting member, and the first sealing member is used to abut between the connecting sleeve and the compressor.

18. The connector according to claim 16, wherein The connector further comprises: A second sealing member is located in the connecting sleeve and / or in the through hole, and the second sealing member is used to be sleeved around the periphery of the connecting member.

19. The connector according to claim 18, wherein The second sealing member is located on a side of the through hole close to the first end surface.

20. The connector according to claim 8, wherein: The housing includes a first housing portion and a cover plate, wherein the first housing portion is formed with a first port and a second port; The connector includes a connector terminal, which is located in the first shell part via the second port, and the connector terminal is used to be electrically connected to the compressor terminal extending into the first shell part via the first port; the cover plate is located on the side of the first shell part where the second port is located and covers the second port, the cover plate is sealed to the first shell part, and the cover plate has an external appearance surface.

21. The connector according to claim 20, wherein The cover plate is welded to the first shell portion at the periphery of the second port.

22. The connector according to claim 21, wherein The cover plate and the first shell portion are welded together at outer edges of a junction between the cover plate and the first shell portion.

23. The connector according to claim 20, wherein Also includes: A first sealing member, at least a portion of which is located between the cover plate and the first housing portion, and the first sealing member is located at a periphery of the second port.

24. The connector according to claim 20, wherein The connector includes at least two connector terminals, the first housing portion is formed with first cavities equal in number to the connector terminals, each first cavity has a second port, each connector terminal is located in each first cavity via each second port, the cover plate covers all the second ports, and the cover plate is sealed to the first housing portion at the periphery of all the second ports.

25. The connector according to claim 24, wherein The cover plate and the first shell portion are welded together at the outer edges of the junction between the two; Alternatively, the connector further comprises a first seal, at least a portion of the first seal is located between the cover plate and the first housing portion, and the first seal is located around the periphery of all the second ports; Alternatively, the connector further includes first seals having a number equal to that of the connector terminals, at least a portion of each first seal is located between the cover plate and the first housing portion, and each first seal is located on the periphery of each second port.

26. The connector according to claim 20, wherein Also includes: A connecting wire, wherein the shell is formed with a wire passing hole, one end of the connecting wire is located inside the shell and is electrically connected to the connector terminal, the other end of the connecting wire passes through the wire passing hole and is located outside the shell, and the connecting wire is sealed and connected to the shell at the wire passing hole.

27. The connector according to claim 26, wherein The wire hole is formed between the first shell portion and the cover plate.

28. The connector according to claim 27, wherein The first shell portion is formed with a notch on a side where the second port is located, and the cover plate is formed with a pressing portion extending into the notch, and the pressing portion and the inner wall of the notch are enclosed to form the wire hole.

29. The connector according to claim 26, wherein The diameter of the wire hole is smaller than the diameter of the connecting wire, and the connecting wire is elastic; Alternatively, the connector further includes a third sealing member, which is located on the wire hole and sleeved on the connecting wire.

30. The connector according to claim 20, wherein One of the cover plate and the first housing portion is provided with a limiting protrusion, and the other is provided with a limiting groove adapted to the limiting protrusion, and the limiting protrusion is located in the limiting groove; And / or, the connector further includes a sealing ring, at least a portion of which is located on a side of the first housing portion where the first port is located and on the periphery of the first port.

31. The connector of claim 8, wherein: The housing is formed with a first port, and an annular groove is provided on a side of the housing where the first port is located, the annular groove is arranged around the first port, the annular groove has an inner sidewall and an outer sidewall arranged around the first port, and the inner sidewall is located inside the outer sidewall; The sealing ring includes a first portion located in the annular groove, the first portion having an inner side surface and an outer side surface arranged around the first port, the inner side surface being located inside the outer side surface; Wherein, at least one of the inner side wall, the outer side wall, the inner side surface and the outer side surface is provided with a convex rib, so that the first portion is squeezed at the convex rib.

32. The connector according to claim 31, wherein The rib extends along the depth direction of the annular groove.

33. The connector according to claim 32, wherein At least one of the inner wall and the outer wall is provided with the rib, and the rib is provided with a guide surface at one end close to the notch of the annular groove; And / or, at least one of the inner side surface and the outer side surface is provided with the rib, the first portion has an end portion away from the second portion, and the rib is provided with a guide surface at one end close to the end portion.

34. The connector according to claim 32, wherein There are multiple convex ribs, and the multiple convex ribs are arranged at intervals along the circumference of the first port.

35. The connector according to claim 31, wherein The convex rib is arranged around the first port; And / or, the sealing ring further includes a second portion located outside the annular groove, and the second portion is connected to the first portion.

36. The connector according to claim 31, wherein Along the radial direction of the first port, the width of the rib is less than or equal to half the width of the annular groove.

37. The connector according to claim 31, wherein The depth of the annular groove is greater than the width of the annular groove along the radial direction of the first port.

38. A heating and ventilation system, wherein: The HVAC system includes a connector and a compressor, the connector is electrically connected to the compressor, the connector includes a shell and a sealing ring, the sealing ring is arranged on the shell, the sealing ring is provided with a material reduction port, the material reduction port is arranged around the circumference of the sealing ring, and at least part of the sealing ring protrudes from the shell.

39. The HVAC system according to claim 38, wherein: The HVAC system includes a fixed structure, the fixed structure fixing the electrically connected compressor and the connector, the fixed structure including: a pressure plate, the pressure plate having a pressing surface and a back surface opposite to each other along a first direction, the pressure plate being located at an end of the connector away from the compressor with the pressing surface facing the connector; A first connecting member is connected to the pressure plate, the first connecting member is located on one side of the connector, and the first connecting member is connected to the compressor so that the pressing surface presses the connector.

40. The HVAC system according to claim 39, wherein: The pressing plate covers the entire first end surface of the connector away from the compressor.

41. The HVAC system according to claim 39, wherein: The pressure plate covers the middle area of the first end surface of the connector away from the compressor, The fixing structure further includes a connecting plate, which connects the pressing plate and the first connecting member, and the connecting plate is spaced apart from the first end surface.

42. The HVAC system according to claim 39, wherein: Also includes: A protrusion is located on the side of the pressing surface of the pressure plate and protrudes outward from the pressing surface. A first accommodating interval for accommodating at least a portion of the connector is defined between the protrusion and the pressing surface.

43. The HVAC system according to claim 42, wherein: The protrusion and the first connecting member are located on opposite sides of the pressure plate, and the first accommodation area is defined between the protrusion, the first connecting member and the pressing surface; Alternatively, the protrusions are arranged around the first direction.

44. The HVAC system according to claim 39, wherein: The first connecting member and the pressing plate are an integrally formed structure.

45. The HVAC system according to claim 39, wherein: The first connecting member is provided with a connecting hole extending along the first direction, and the connecting hole is used for sleeve-mounting the second connecting member of the compressor.

46. The HVAC system according to claim 39, wherein: The first connecting member is provided with a connecting hole, the compressor is provided with a second connecting member, and the second connecting member passes through the connecting hole; The compressor further includes a locking member, which is located on a side of the first connecting member away from the compressor and connected to the second connecting member, so that the connector presses against the compressor.

47. The HVAC system according to claim 39, wherein: The connector has a second end surface facing the compressor, at least a portion of the sealing ring protrudes from the second end surface, and the sealing ring is used to fix the connector and the compressor to be compressed in the fixing structure; And / or, the first direction is parallel to the plugging direction of the compressor and the connector.

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