Sealing ring, connector and heating and ventilation system

Abstract

The embodiment of the utility model discloses a sealing ring, a connector and a heating and ventilation system, the sealing ring is used in the connector, the sealing ring is provided with a material reducing port, and the material reducing port is arranged around the circumferential direction of the sealing ring. According to the embodiment of the utility model, the material reducing opening is formed in the sealing ring, so that the mass of the sealing ring can be reduced, and the compression amount of the sealing ring is reduced, and therefore, when the sealing ring is used in the connector and is used for sealing the connector and a compressor, compared with a complete sealing ring in the related technology, the sealing ring provided by the embodiment of the invention has the advantages that the sealing performance is improved; the resilience force generated when the connector is extruded is reduced, so that even if only one side of the connector is connected with the compressor, the sealing ring on the opposite side is not easy to warp, and the sealing performance of the sealing ring between the connector and the compressor can be ensured; the problem that in the prior art, only one side of the connector is connected with the compressor, and consequently the side, opposite to the side fixed to the compressor, of the connector is warped is solved.

Description

Technical Field

[0001] The present application relates to the technical field of compressor equipment, and in particular to a sealing ring, a connector and a HVAC system. Background Art

[0002] When the compressor is powered on for operation testing or installed in an air conditioner, a connector is required to connect an external wire to a terminal on the compressor, thereby supplying power to the compressor. Specifically, a terminal of the connector needs to be connected to a terminal on the compressor.

[0003] 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 up on the side opposite to the compressor. Utility Model Content

[0004] 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.

[0005] 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.

[0006] In some embodiments, the material reduction port is arranged around the entire circumference of the sealing ring.

[0007] In some embodiments, the material reduction port includes a plurality of sub-material reduction ports spaced apart around the circumference of the sealing ring.

[0008] In some embodiments, the sealing ring has a first end face and a second end face that are axially opposite to each other, and at least one of the first end face and the second end face is provided with the material reduction port.

[0009] In some embodiments, the sealing ring has two inclined surfaces participating 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.

[0010] In some embodiments, the sealing ring further has 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 is arranged at an angle to the two inclined surfaces.

[0011] In some embodiments, 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, and at least one of the inner side surface and the outer side surface is provided with the material reduction port.

[0012] In a second aspect, an embodiment of the present application provides a connector, comprising the above-mentioned sealing ring and a housing, wherein at least a portion of the sealing ring protrudes from the housing.

[0013] In some embodiments, the housing is formed with a first port, the first port is used for 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.

[0014] In some embodiments, the housing is provided with an annular groove on one side where the first port is located, and when observed along the first port, the annular groove is arranged around the first port, and 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, and the first part is connected to the second part.

[0015] In some embodiments, along the axial direction of the sealing ring, the 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%;

[0016] And / or, the first part is provided with the material reduction opening, and the first part and the inner wall of the annular groove form a material reduction gap at the material reduction opening.

[0017] In a third aspect, an embodiment of the present application provides a HVAC system, comprising the above-mentioned connector and a compressor, wherein the connector is electrically connected to the compressor.

[0018] In some embodiments, the connector includes a first connecting member, 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;

[0019] The compressor further comprises a locking member, which is located at a side of the first connecting member away from the compressor and connected to the second connecting member, so as to enable the connector to press against the compressor.

[0020] The sealing ring, connector and HVAC system of the embodiments of the present application can reduce the mass of the sealing ring by setting 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

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. 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 paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of the sealing ring in the first embodiment of the present application;

[0023] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the sealing ring is shown;

[0024] Figure 3 is a partial cross-sectional enlarged schematic diagram of the sealing ring in the second embodiment of the present application;

[0025] Figure 4 is a partial cross-sectional enlarged schematic diagram of a sealing ring in the third embodiment of the present application;

[0026] Figure 5 yes Figure 1 A cross-sectional schematic diagram of the assembly of the sealing ring and the connector is shown;

[0027] Figure 6 yes Figure 5 The exploded structural diagram of the connector is shown;

[0028] Figure 7 yes Figure 5 The schematic diagram of the assembly of the sealing ring, the connector and the compressor is shown;

[0029] Figure 8 yes Figure 7 Schematic diagram of the cross section along the AA direction.

[0030] Description of reference numerals:

[0031] 10. Sealing ring;

[0032] 11. material reduction opening; 111. inclined surface; 112. connecting surface;

[0033] 12. a first end surface;

[0034] 13. Second end surface;

[0035] 14. Medial side;

[0036] 15. Outer side;

[0037] 16. Part 1;

[0038] 17. Part 2;

[0039] 20. Connector; 201. Housing; 2011. First port; 2012. Annular groove; 202. First connector; 2021. Connecting hole; 203. First housing portion; 2031. Slot; 2032. Stop groove; 204. Second housing portion; 2041. Hook; 205. First chamber; 206. Second chamber; 207. Second port; 208. Cover plate; 2081. Stop convex; 209. Connector terminal; 210. Connecting wire;

[0040] 30. compressor; 301. second connecting member; 302. compressor terminal; 303. terminal seat;

[0041] 40. Locking piece. DETAILED DESCRIPTION

[0042] In order to make the objectives, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0043] When the following description refers to the 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 only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0044] First, see Figures 1 to 4The embodiment of the present application provides a sealing ring 10, which is used in a connector 20. The sealing ring 10 is provided with a material reduction port 11, which is arranged around the circumference of the sealing ring 10. The embodiment of the present application can reduce the mass of the sealing ring 10 by providing the material reduction port 11 on the sealing ring 10, so that the compression amount of the sealing ring 10 becomes smaller. In this way, when the sealing ring 10 is used in the connector 20 and used to seal the connector 20 and the compressor 30, the sealing ring 10 of the embodiment of the present application will have a smaller rebound force when being squeezed than the complete sealing ring in the related art, so that even if the connector 20 is only connected to the compressor 30 on one side, it is not easy to cause the sealing ring 10 on the opposite side to be warped, which can ensure the sealing performance of the sealing ring 10 between the connector 20 and the compressor 30, and improve the problem of the connector 20 being warped on the opposite side fixed to the compressor 30 caused by the connector 20 being only connected to the compressor 30 on one side in the related art.

[0045] In the embodiment of the present application, the material reduction opening 11 on the sealing ring 10 is arranged around the circumference of the sealing ring 10. In this way, when the connector 20 and the compressor 30 are sealed, the material reduction opening 11 on the sealing ring 10 can provide deformation space for the sealing ring 10, so that after the sealing ring 10 is squeezed by the connector 20 and the compressor 30, the part around the material reduction opening 11 can also be compressed. Compared with the axial arrangement of the material reduction opening 11 around the sealing ring 10, the sealing performance of the sealing ring 10 can be effectively improved. It can be understood that the axial direction of the sealing ring 10 is roughly consistent with the direction in which the sealing ring 10 is squeezed, and the circumferential direction of the sealing ring 10 is roughly perpendicular to the direction in which the sealing ring 10 is squeezed. Therefore, when the sealing ring 10 is squeezed, the material reduction opening 11 perpendicular to the squeezing direction can be compressed, thereby improving the sealing performance of the sealing ring 10.

[0046] In one embodiment, the material reduction port 11 is arranged around the entire circumference of the sealing ring 10. In this way, when the sealing ring 10 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 10 sealing the connector 20 and the compressor 30.

[0047] In another embodiment, the material reduction opening 11 may include a plurality of sub-material reduction openings arranged at intervals around the circumference of the sealing ring 10. By arranging a plurality of sub-material reduction openings on the sealing ring 10, when the sealing ring 10 is squeezed, on the one hand, the plurality of sub-material reduction openings can be used to provide sufficient deformation space for the sealing ring 10, thereby improving the sealing performance of the sealing ring 10; on the other hand, the plurality of sub-material reduction openings can also be used to further reduce the mass of the sealing ring 10, thereby reducing the resilience of the sealing ring 10, and making it less likely to warp when the sealing ring 10 seals the connector 20 and the compressor 30. Arranging the plurality of sub-material reduction openings at intervals is more conducive to maintaining the stability of the sealing ring 10 itself, thereby ensuring the stability of the sealing ring 10 sealing the connector 20 and the compressor 30, compared with arranging the plurality of sub-material reduction openings at a certain position of the sealing ring 10.

[0048] In the embodiment of the present application, the sealing ring 10 has a first end face 12 and a second end face 13 which are arranged opposite to each other in the axial direction, and at least one of the first end face 12 and the second end face 13 is provided with a material reduction port 11. Thus, when the sealing ring 10 is used in the connector 20, if the second end face 13 is used to contact with the housing 201 of the connector 10 and the material reduction port 11 is provided on the second end face 13, the material reduction port 11 at the second end face 13 will form a gap between the second end face 13 and the housing 201 of the connector 10 at the material reduction port 11, and the gap can provide a deformation space for the sealing ring 10 when the connector 20 is connected to the compressor 30, so that the second end face 13 can also be compressed after the sealing ring 10 is squeezed by the connector 20 and the compressor 30, thereby improving the sealing performance of the sealing ring 10.

[0049] When the sealing ring 10 is used for the connector 20, if the first end face 12 is away from the outer shell 201 of the connector 20 and is used to contact the compressor 30 to achieve sealing between the connector 20 and the compressor 30, the first end face 12 is provided with a material reduction port 11, so that when the connector 20 and the compressor 30 are connected, a gap is generated between the surface of the sealing ring 10 and the compressor 30, and the gap can provide a deformation space for the first end face 12 of the sealing ring 10, so that the first end face 12 of the sealing ring 10 can also be compressed after being squeezed by the connector 20 and the compressor 30, thereby improving the sealing performance of the sealing ring 10.

[0050] At least one of the first end face 12 and the second end face 13 is provided with a material reduction port 11. It can be that the first end face 12 is provided with the material reduction port 11; it can also be that the second end face 13 is provided with the material reduction port 11; it can also be that the first end face 12 and the second end face 13 are provided with the material reduction port 11 at the same time. It can be flexibly designed according to actual conditions and is not limited to this.

[0051] Combination Figures 2 to 4The sealing ring 10 has two inclined surfaces 111 that participate in forming the material reduction port 11. Both inclined surfaces 111 are inclined relative to the axial direction of the sealing ring 10, and the distance between the two inclined surfaces 111 gradually decreases along the direction from the opening of the material reduction port 11 to the bottom wall. By providing two inclined surfaces 111 that are inclined relative to the axial direction of the sealing ring 10, when the sealing ring 10 is squeezed, the inclination generated by the inclined surfaces 111 can be used to make the sealing ring 10 deform as much as possible toward the material reduction port 11, thereby increasing the deformation amount of the sealing ring 10.

[0052] Along the direction from the opening of the material reduction port 11 to the bottom wall, the distance between the two inclined surfaces 111 gradually decreases. At this time, the larger distance at the opening of the material reduction port 11 can accommodate more deformation of the sealing ring 10, while the smaller distance at the bottom wall can constrain the deformed part of the sealing ring 10. In addition, the deformation of the sealing ring 10 at the two inclined surfaces 111 is roughly the same, which can improve the flatness of the sealing ring 10 when sealing.

[0053] The sealing ring 10 also has a connecting surface 112 that participates in forming the material reduction port 11. The connecting surface 112 is connected between the two inclined surfaces 111, and the connecting surface 112 is set at an angle with the two inclined surfaces 111. By setting the connecting surface 112, the connecting surface 112 can be used to increase the distance between the two inclined surfaces 111 at the bottom wall of the material reduction port 11, thereby increasing the space for accommodating the deformation of the sealing ring 10. At this time, the space of the material reduction port 11 is larger, and the mass of the sealing ring 10 is smaller, so that the sealing ring 10 has a smaller rebound force after being squeezed between the connector 20 and the compressor 30, so that when the connector 20 is only connected to the compressor 30 on one side, the sealing ring 10 is located on the opposite side where the connector 20 and the compressor 30 are fixed, and it is less likely to warp.

[0054] It should be noted that the material reduction port 11 can be the one recorded above including two inclined surfaces 111, such as a roughly V-shaped material reduction port; it can also be the one recorded above including two inclined surfaces 111 and a connecting surface 112, such as a roughly U-shaped material reduction port, etc. In addition, the material reduction port 11 can also adopt other shapes, which is not limited to this.

[0055] See also Figure 4 The sealing ring 10 has an inner side surface 14 and an outer side surface 15 which are arranged around the circumference. The inner side surface 14 is located inside the outer side surface 15. At least one of the inner side surface 14 and the outer side surface 15 is provided with a material reduction opening 11. The material reduction opening 11 is provided on the inner side surface 14 and the outer side surface 15 of the sealing ring 10, so that when the sealing ring 10 is squeezed, the inner side surface 14 and the outer side surface 15 of the sealing ring 10 can also be deformed, thereby further reducing the rebound force generated when the sealing ring 10 is squeezed.

[0056] For example, in combination Figure 4The outer side surface 15 and the inner side surface 14 of the sealing ring 10 can be provided with a material reduction port 11. In this way, when the sealing ring 10 is squeezed, the inner side surface 14 and the outer side surface 15 will be deformed, which is beneficial to reducing the resilience of the sealing ring 10 on the one hand; on the other hand, it is beneficial to improve the uniformity and stability of the deformation of the sealing ring 10, thereby improving the flatness of the sealing ring 10 when sealing the connector 20 and the compressor 30.

[0057] Second, see Figure 5 The embodiment of the present application provides a connector 20, which includes the above-mentioned sealing ring 10 and a housing 201. Among them, at least part of the sealing ring 10 protrudes from the housing 201. The sealing ring 10 is set to partially protrude from the housing 201, so that the part of the sealing ring 10 protruding from the housing 201 can be deformed when the connector 20 is connected to the compressor 30, so as to improve the connection tightness between the connector 20 and the compressor 30.

[0058] The housing 201 is formed with a first port 2011, and the first port 2011 is used for the compressor terminal 302 to extend into the housing 201. The sealing ring 10 is arranged on the side of the housing 201 where the first port 2011 is located, and when viewed along the first port 2011, the sealing ring 10 is arranged around the first port 2011. The sealing ring 10 is arranged on the side of the housing 201 where the first port 2011 is located, so that after the compressor terminal 302 extends into the housing 201 and is plugged into the connector terminal 209, the sealing ring 10 can be used to seal the side where the first port 2011 is located, thereby ensuring the sealing performance between the connector 20 and the compressor 30.

[0059] In the embodiment of the present application, the housing 201 is provided with an annular groove 2012 on one side where the first port 2011 is located. When viewed along the first port 2011, the annular groove 2012 is provided around the first port 2011, and a portion of the sealing ring 10 is located in the annular groove 2012. By providing the annular groove 2012, on the one hand, the installation position of the sealing ring 10 on the housing 201 can be positioned to speed up the assembly speed of the sealing ring 10 on the housing 201, and on the other hand, the sealing ring 10 can be restrained to accommodate the deformation of the sealing ring 10 caused by extrusion and prevent it from moving easily.

[0060] It is understandable that the annular groove 2012 may be connected to the first port 2011 or may not be connected to the first port 2011. In the embodiment of the present application, the annular groove 2012 is not connected to the first port 2011, which can prevent the sealing ring 10 from deforming toward the first port 2011 when it is squeezed and deformed, thereby affecting the installation stability of the sealing ring 10. It should be noted that the sealing ring 10 can be installed in the annular groove 2012 by snapping, or by bonding, etc., and this is not limited.

[0061] Continue reading Figure 5 The sealing ring 10 is partially located in the annular groove 2012 and can be: the sealing ring 10 includes a first portion 16 and a second portion 17 distributed along the axial direction, the first portion 16 is located in the annular groove 2012 and the second portion 17 is located outside the annular groove 2012, the first portion 16 is connected to the second portion 17, wherein the second portion 17 located outside the annular groove 2012 can be deformed when the connector 20 is connected to the compressor 30 to improve the connection tightness between the connector 20 and the compressor 30.

[0062] In one embodiment, the first portion 16 is provided with a material reduction opening 11, and the first portion 16 and the inner wall of the annular groove 2012 form a material reduction gap at the material reduction opening 11. The material reduction gap can provide a deformation space for the sealing ring 10 when the connector 20 is connected to the compressor 30, so that the first portion 16 is compressed, thereby improving the sealing performance of the sealing ring 10. In addition, the formation of the material reduction gap can reduce the mass of the sealing ring 10, thereby reducing the resilience of the sealing ring 10, so that the sealing ring 10 is not easy to warp when sealing the connector 20 and the compressor 30.

[0063] Optionally, along the axial direction of the sealing ring 10, the ratio of the height of the second portion 17 to the height of the sealing ring 10 is greater than or equal to 5% and less than or equal to 50%. By reasonably limiting the height ratio of the second portion 17 to the sealing ring 10, it is possible to avoid that the portion of the sealing ring 10 outside the annular groove 2012 is too small due to the ratio being too small, and then when the connector 20 is connected to the compressor 30, there may be a gap between the sealing ring 10 and the housing 201 and the compressor 30, and then it is impossible to completely seal, and it is difficult to ensure the sealing performance between the connector 20 and the compressor 30; it is also possible to avoid that the portion of the sealing ring 10 outside the annular groove 2012 is too large due to the ratio being too large, and then when the connector 20 is connected to the compressor 30, the housing 201 cannot press the sealing ring 10. Exemplarily, the ratio of the height of the second portion 17 of the sealing ring 10 outside the annular groove 2012 to the height of the sealing ring 10 can be 5%, 10%, 20%, 30%, 40%, 50%, etc., and this is not limited.

[0064] In the present application, see Figures 5 to 8 The connector 20 includes a first connector 202, which is provided with a connecting hole 2021, and the compressor 30 is provided with a second connector 301, which passes through the connecting hole 2021; the compressor 30 also includes a locking member 40, which is located on the side of the first connector 202 away from the compressor 30 and is connected to the second connector 301, so that the connector 20 presses against the compressor 30.

[0065] The second connector 301 and the locking member 40 may be connected via threads. For example, the locking member 40 includes a nut, and the second connector 301 is provided with threads. The second connector 301 passes through the connection hole 2021 and is threadedly connected and fixed with the nut. By tightening the nut, the distance between the compressor 30 and the connector 20 can be shortened. In addition, the first connector 202 and the second connector 301 may also be connected by plugging, snapping, etc., which is not limited thereto.

[0066] Next, the connector 20 will be further described.

[0067] Continue reading Figure 6 and Figure 8 The connector 20 includes a housing 201 and a connector terminal 209. The housing 201 is formed with a first chamber 205. The connector terminal 209 is located in the first chamber 205. The housing 201 is formed with a first port 2011 communicating with the first chamber 205. The connector terminal 209 is used to be electrically connected to the compressor terminal 302 extending into the first chamber 205 via the first port 2011.

[0068] The connector 20 may include at least two connector terminals 209, and the housing 201 is formed with at least two first chambers 205 equal in number to the at least two connector terminals 209, and each connector terminal 209 is mounted in a one-to-one correspondence in each first chamber 205. For example, the connector 20 includes two connector terminals 209, and the housing 201 is formed with two first chambers 205; or, the connector 20 includes three connector terminals 209, and the housing 201 is formed with three first chambers 205, and so on, which is not limited.

[0069] It is understandable that when the connector 20 includes at least two connector terminals 209 , the compressor 30 includes at least two compressor terminals 302 which is equal to the number of the at least two connector terminals 209 , and each compressor terminal 302 is electrically connected to each connector terminal 209 in a one-to-one correspondence.

[0070] In some embodiments, the housing 201 may include a first housing portion 203 and a second housing portion 204, the first housing portion 203 is formed with a first port 2011 and a second port 207 communicating with the first chamber 205, the connector terminal 209 is installed on the first housing portion 203 via the second port 207, and the second housing portion 204 is connected to the first housing portion 203. Disassembling the housing 201 into the first housing portion 203 and the second housing portion 204 is conducive to the assembly of the connector terminal 209.

[0071] It should be noted that when at least two first chambers 205 are formed on the shell 201, the first shell portion 203 has first ports 2011 equal in number to the first chambers 205 and second ports 207 equal in number to the first chambers 205, each first port 2011 is connected to each first chamber 205, and each second port 207 is connected to each first chamber 205.

[0072] The heat resistance of the first housing portion 203 is higher than that of the second housing portion 204. Compared with the second housing portion 204, the first housing portion 203 is less likely to deform under high temperature conditions. Thus, the first port 2011 is disposed on the first housing portion 203. When the connector 20 is connected to the compressor 30, the first housing portion 203 is close to the compressor 30. The first housing portion 203 has a higher heat resistance, which can prevent the internal connector terminal 209 from being softened by high temperature, thereby extending the service life of the connector terminal 209.

[0073] The first housing portion 203 may be made of a high heat-resistant material, for example, the first housing portion 203 may include at least one of PBT (poly butylene terephthalate) and GF (glass fiber). In the embodiment of the present application, the first housing portion 203 is made of PBT+30% GF, which is a high temperature resistant and fireproof material, and can prevent the connector terminal 209 from softening during operation.

[0074] The second housing portion 204 can cover the second port 207 and the connector terminal 209. The second port 207 is provided to facilitate the installation of the connector terminal 209 in the housing 201, and the second housing portion 204 covers the second port 207 and the connector terminal 209, so that when the connector terminal 209 and the compressor terminal 302 are connected, both are wrapped by the housing 201 of the connector 20, so as to avoid the existence of refrigerant near the two and the ignition problem when the connector terminal 209 and the compressor terminal 302 are connected.

[0075] The second housing portion 204 may include an injection-molded housing portion connected to the first housing portion 203, and / or the second housing portion 204 may include a glue-filled housing portion connected to the first housing portion 203. 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 203, and the injection-molded housing portion is at least an integrally-molded structure with the first housing portion 203. Specifically, after the first housing portion 203 is molded, at least the first housing portion 203 is placed in a mold to participate in constructing a cavity for molding the injection-molded housing portion, and then a molding material is injected into the cavity to obtain the injection-molded housing portion.

[0076] The glue-filled housing portion is formed by a glue-filling process, and the glue-filled housing portion is connected to the first housing portion 203, so the glue-filled housing portion is at least an integrally molded structure with the first housing portion 203. Specifically, the first housing portion 203 is formed with a molding groove, and at least the molding groove participates in constructing a glue-filling groove for molding the glue-filled housing portion, and then the molding material is injected into the glue-filling groove to obtain the glue-filled housing portion.

[0077] In summary, whether the second housing portion 204 includes an injection-molded housing portion or a glue-filled housing portion, the second housing portion 204 and the first housing portion 203 can be formed as an integral structure, which can improve the tightness of the connection between the second housing portion 204 and the first housing portion 203 and the sealing between the second housing portion 204 and the first housing portion 203, compared with the second housing portion 204 and the first housing portion 203 being formed independently and then assembled. The second housing portion 204 of the connector 20 is sealed with the first housing portion 203, and when the connector 20 is connected to the compressor 30, the first housing portion 203 and the surface of the compressor 30 are sealed due to the presence of the sealing ring 10, so that the overall sealing of the connector 20 can be improved.

[0078] The second shell part 204 can be made of a sealing rubber shell with high sealing performance. The second shell part 204 can be elastic or inelastic, and can be flexibly designed according to actual needs. In the embodiment of the present application, the second shell part 204 can be made of PVC (Polyvinyl chloride), which has excellent elasticity and sealing performance. The second shell part 204 can be made of plastic or silicone, which is not limited.

[0079] In order to improve the connection reliability between the second housing part 204 and the first housing part 203, one of the second housing part 204 and the first housing part 203 may be provided with a hook 2041, and the other may be provided with a slot 2031 adapted to the hook 2041, and the hook 2041 is located in the slot 2031. The second housing part 204 and the first housing part 203 can be hooked by the hook 2041 and are not easy to be separated. It can be understood that the second housing part 204 may be provided with a hook 2041, and the first housing part 203 may be provided with a slot 2031; or the second housing part 204 may be provided with a slot 2031, and the first housing part 203 may be provided with a hook 2041, and this is not limited.

[0080] It is understandable that the second housing portion 204 can be integrally formed as an injection-molded housing portion, or the second housing portion 204 can be integrally formed as a glue-potted housing portion, so as to simplify the processing technology of the second housing portion 204 and reduce the manufacturing cost of the connector 20 .

[0081] The connector 20 also includes a cover, which covers the second port 207, and the second housing portion 204 covers the cover. Under the cover, impurities such as water vapor and dust can be prevented from entering the first housing portion 203, which would affect the performance of the connector terminal 209. When the second housing portion 204 includes an injection-molded housing portion or a glue-filled housing portion, under the cover, the molding material of the second housing portion 204 will not pass through the second port 207 to reach the connector terminal 209, and the connector terminal 209 will be wrapped, thereby ensuring effective electrical connection between the connector terminal 209 and the compressor terminal 302.

[0082] The connector terminal 209 and the cover member may be in contact or have a gap therebetween. If there is a gap between the connector terminal 209 and the cover member, the connector terminal 209 can be deformed toward the gap when plugged into the compressor terminal 302, so as to avoid damage to the connector terminal 209 and the compressor terminal 302 due to hard plugging.

[0083] The cover assembly may include a cover plate 208 , the cover plate 208 covers the second port 207 and the connector terminal 209 , and the second housing portion 204 covers the cover plate 208 .

[0084] One of the cover plate 208 and the first housing portion 203 may be provided with a limiting protrusion 2081, and the other may be provided with a limiting groove 2032, and the limiting protrusion 2081 is located in the limiting groove 2032. The setting of the limiting protrusion 2081 and the limiting groove 2032 can position the cover plate 208 and the first housing portion 203 when they are assembled, which is conducive to improving the assembly efficiency of the cover plate 208 and the first housing portion 203. It can be understood that the limiting protrusion 2081 can be provided on the cover plate 208, and the limiting groove 2032 can be provided on the first housing portion 203; or, the limiting groove 2032 can be provided on the cover plate 208, and the limiting protrusion 2081 can be provided on the first housing portion 203, and this is not limited. In the embodiment of the present application, a limiting protrusion 2081 is provided on the cover plate 208, and a limiting groove 2032 is provided on the first shell portion 203. Since the cover plate 208 is relatively thin, providing the limiting protrusion 2081 on the cover plate 208 is more beneficial to improving the structural strength of the cover plate 208 than the limiting groove 2032.

[0085] If the housing 201 is formed with a plurality of first chambers 205 and a plurality of second ports 207 , the cover 208 covers all the second ports 207 .

[0086] The housing 201 (e.g., the first housing portion 203) may further include a second chamber 206 in communication with the first chamber 205, the second chamber 206 being closer to the compressor 30 than the first chamber 205, and along the plugging direction, the cross-sectional profile of the second chamber 206 is larger than the cross-sectional profiles of all the first chambers 205, and along the plugging direction, the cross-sectional profiles of all the first chambers 205 are located within the cross-sectional profile of the second chamber 206. In this way, when the connector 20 includes at least two connector terminals 209 and the compressor 30 includes at least two compressor terminals 302, when the compressor terminals 302 are connected to the connector terminals 209, all the compressor terminals 302 can pass through the second chamber 206 and reach the corresponding first chamber 205 to achieve electrical connection with the corresponding connector terminals 209. Furthermore, the compressor 30 may include a terminal seat 303 for fixing the compressor terminal 302 , the terminal seat 303 protrudes relative to the compressor body, and when the compressor terminal 302 is connected to the connector terminal 209 , the terminal seat 303 may be located in the second chamber 206 .

[0087] It is understandable that the annular groove 2012 may or may not be connected to the second chamber 206. In the embodiment of the present application, the annular groove 2012 is not connected to the second chamber 206, which can prevent the sealing ring 10 from deforming toward the second chamber 206 when it is squeezed and deformed, thereby affecting the installation stability of the sealing ring 10.

[0088] The connector 20 also includes a connecting wire 210, which is electrically connected to the connector terminal 209, and is used to realize signal interaction between the compressor 30 and the outside world when the connector terminal 209 is connected to the compressor terminal 302. Among them, one end of the connecting wire 210 connected to the connector terminal 209 is wrapped by the second shell part 204 to improve the connection reliability between the connecting wire 210 and the connector terminal 209 and improve the sealing of the connector 20. Specifically, when the second shell part 204 includes an injection molding shell part and / or a glue pouring shell part, the second shell part 204 can directly wrap one end of the connecting wire 210 connected to the connector terminal 209 during injection molding and / or glue pouring. If the connector 20 includes multiple connector terminals 209, the connecting wire 210 is electrically connected to the multiple connector terminals 209.

[0089] The connector terminal 209 may be any terminal, and the compressor terminal 302 may be any terminal, as long as the compressor terminal 302 and the connector terminal 209 can be electrically connected.

[0090] For example, one of the connector terminal 209 and the compressor terminal 302 may be a male terminal, and the other may be a female terminal. In the embodiment of the present application, the connector terminal 209 is a female terminal, the compressor terminal 302 is a male terminal, the connector terminal 209 is formed with a plug hole, and at least a portion of the compressor terminal 302 is inserted into the plug hole and electrically connected to the connector terminal 209. That is, when the connector terminal 209 is connected to the compressor terminal 302, at least a portion of the compressor terminal 302 is surrounded by the connector terminal 209, which can improve the connection reliability between the connector terminal 209 and the compressor terminal 302.

[0091] In a third aspect, an embodiment of the present application provides a HVAC system, which includes the above-mentioned connector 20 and compressor 30, and the connector 20 is electrically connected to the compressor 30. 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 the embodiment of the present application.

[0092] The HVAC system includes a sealing ring 10 and a connector 20. The specific structures of the sealing ring 10 and the connector 20 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 described one by one here.

[0093] In the description of the present 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 the present application can be understood according to the specific circumstances. In addition, in the description of the present 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 objects associated before and after are in an "or" relationship.

[0094] The above disclosure is only the preferred embodiment of the present application, which 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, characterized in that: The sealing ring is used in a connector, and 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 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, and at least one of the inner side surface and the outer side surface is provided with the material reduction port.

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

3. The sealing ring according to claim 1, characterized in that: 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, characterized in that: The sealing ring has a first end face and a second end face which are arranged opposite to each other in the axial direction, and at least one of the first end face and the second end face is provided with the material reduction port.

5. The sealing ring according to claim 4, characterized in that: The sealing ring has two inclined surfaces participating in forming the material reduction port, the two inclined surfaces are both 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, characterized in that: The sealing ring also has 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. A connector, characterized in that: include: The sealing ring according to any one of claims 1 to 6; The housing is provided, and at least a portion of the sealing ring protrudes from the housing.

8. The connector according to claim 7, characterized in that: 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.

9. The connector according to claim 8, characterized in that: The housing is provided with an annular groove on one 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.

10. The connector according to claim 9, characterized in that: 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 part is provided with the material reduction opening, and the first part and the inner wall of the annular groove form a material reduction gap at the material reduction opening.

11. A HVAC system, characterized in that: The invention comprises the connector and the compressor according to any one of claims 7 to 10, wherein the connector is electrically connected to the compressor.

12. The HVAC system according to claim 11, characterized in that: The connector includes a first connector, the first connector is provided with a connecting hole, the compressor is provided with a second connector, and the second connector passes through the connecting hole; The compressor further comprises a locking member, which is located at a side of the first connecting member away from the compressor and connected to the second connecting member, so as to enable the connector to press against the compressor.

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