Sealing connector for three-phase integrally-formed automobile air conditioner compressor

Abstract

The utility model discloses a sealing connector for a three-phase integrally-formed automobile air conditioner compressor, which relates to the technical field of sealing elements and comprises a chassis, three groups of sealing elements are arranged on the chassis, mounting holes penetrating through the chassis and the sealing elements are formed in the middles of the sealing elements, and the mounting holes comprise a large hole far away from one end of the chassis and a small hole close to one end of the chassis. A framework is embedded and bonded in the large hole of the sealing piece, the axis of the framework coincides with the axis of the mounting hole, the diameter of the framework is larger than that of the small hole, and the joint of the large hole and the small hole is flush with the inner wall of the bottom end of the framework. A three-phase plug is inserted into the framework, a three-phase cable is wrapped by the small holes, the three groups of mounting holes are respectively arranged on the chassis, and the three groups of sealing elements are independently sealed, so that accumulative errors caused by assembly are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of seals, and particularly relates to a sealed connector for a three-phase integrally formed automotive air-conditioning compressor. Background Art

[0002] As an efficient sealed safety component, the three-phase integrally formed connector for the air-conditioning compressor of new energy vehicles has the characteristics of good sealing performance, good insulation, convenient installation and safety. It is increasingly used in high-end new energy vehicles and is an important component to improve the comfort of passenger cars. Since the working conditions of vehicles are complex during use, they often experience various extreme and harsh environments such as wind, frost, rain, snow and sand, which will directly affect the comfort. Therefore, for multi-functional and high-precision devices such as three-phase integrally formed connectors, long-term stable sealing is generally required, which requires a structure with insulation, multi-site sealing, convenient installation and stable performance.

[0003] Previously, the structure of the air-conditioning compressor of new energy vehicles was complex and the environmental temperature was high, making it difficult to integrally form a three-phase connector with multiple materials inside the housing of the air-conditioning compressor; the existing connectors were generally made of plastic. One end was installed at the end of the air-conditioning compressor, and the other end was connected to the three-phase connector to play the role of connecting the current. Due to the general structure, after long-term operation, affected by the external environment, dust pollutants would enter the plastic sealing end, and there would be a certain degree of leakage. After long-term operation and the temperature rising, the plastic three-phase connector would deform, seriously affecting the service life of the air-conditioning compressor and the comfort of the vehicle. Considering the above working environment and usage requirements, generally, the plastic connector is used to fix the three-phase joint of the air-conditioning compressor, and there is no good seal design at the connection, which not only affects the use effect, but also the safety performance is worrying, and all aspects of the functions of the air-conditioning compressor cannot be guaranteed. Summary of the Utility Model

[0004] Aiming at the problems mentioned in the background art, the purpose of the utility model is to provide a sealed connector for a three-phase integrally formed automotive air-conditioning compressor to solve the problems mentioned in the above background art.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions:

[0006] A sealed connector for a three-phase integrally formed automotive air-conditioning compressor includes a chassis. Three sets of seals are arranged on the chassis. An installation hole penetrating through the chassis and the seals is opened in the middle of the seals. The installation hole includes a large hole at the end far from the chassis and a small hole at the end close to the chassis. A skeleton is embedded and bonded in the large hole of the seal. The axis of the skeleton coincides with the axis of the installation hole. The diameter of the skeleton is larger than the diameter of the small hole. The connection between the large hole and the small hole is flush with the inner wall of the bottom end of the skeleton.

[0007] As a preferred technical solution, both the chassis and the seal are made of rubber, the skeleton is made of high-strength plastic material, and the seal, the chassis and the skeleton are integrated into an integral structure through a vulcanization process.

[0008] As a preferred technical solution, three groups of seals are arranged in a straight line and an anti-misalignment groove is provided on one side in the length direction of the chassis.

[0009] As a preferred technical solution, the outer edge of the top end of the seal is the top seal, the outer wall is the outer seal, a middle seal rib protruding towards the large hole is provided in the middle of the seal flush with the inner wall of the bottom end of the skeleton, and multiple groups of inner convex edges protruding towards the axis of the installation hole are provided on the inner wall of the skeleton. The inner convex edges, the top seal, the outer seal and the middle seal rib are all in contact connection with the three-phase plug.

[0010] As a preferred technical solution, multiple groups of anti-detachment rib grooves are provided on the outer wall of the skeleton, and multiple groups of anti-detachment ribs are provided on the inner wall of the upper half of the seal to match the anti-detachment rib grooves. The anti-detachment ribs are embedded into the anti-detachment rib grooves and bonded thereto.

[0011] As a preferred technical solution, the outer wall of the top end of the skeleton is an anti-detachment step, the cross section of the anti-detachment step is a right angle, the right angle opening faces the outside of the seal, and the inner wall of the top end of the seal is adhesively bonded to match the anti-detachment step.

[0012] As a preferred technical solution, the bottom end of the skeleton is provided with an anti-detachment block protruding towards the axis of the small hole, the anti-detachment block is adhesively bonded to match the seal, and the anti-detachment block is located below the middle seal rib.

[0013] As a preferred technical solution, two groups of bottom seal ribs are provided on the inner wall of the bottom end of the seal, both groups of bottom seal ribs protrude towards the axis of the small hole, the corner seal is between the two groups of bottom seal ribs, the corner seal is a smooth curved surface protruding towards the axis of the small hole, and the bottom seal ribs and the corner seal are both in contact with the outer wall of the three-phase cable.

[0014] As a preferred technical solution, the innermost wall of the bottom end of the seal is the bottom inner seal for sealing between the compressor and the housing.

[0015] As a preferred technical solution, the outside of the chassis is the bottom outer seal for sealing between the compressor and the compressor housing, and the cross section of the bottom outer seal is circular.

[0016] Additional aspects and advantages of the present utility model will be given in part in the following description, will become apparent in part from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structure diagram of a sealed connector for a three-phase integrally formed automotive air-conditioning compressor proposed by the present utility model;

[0018] Figure 2Top view of a sealed connector for a three-phase integrated automotive air-conditioning compressor proposed by the present utility model;

[0019] Figure 3 For the present utility model Figure 2 Cross-sectional view in the direction of A-A.

[0020] Reference numerals: 1, seal; 11, top seal; 12, external seal; 13, middle sealing rib; 14, anti-disengagement rib; 15, corner seal; 16, bottom sealing rib; 17, inner bottom seal; 2, chassis; 21, outer bottom seal; 22, anti-misalignment groove; 3, skeleton; 31, inner convex edge; 32, anti-disengagement rib groove; 33, anti-disengagement block; 34, anti-disengagement step. Detailed implementation manner

[0021] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar symbols represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation to the present utility model.

[0022] Embodiment 1

[0023] Referring to Figures 1 to 3 A sealed connector for a three-phase integrated automotive air-conditioning compressor according to this embodiment includes a chassis 2. Three groups of seals 1 are arranged on the chassis 2. The chassis 2 and the seals 1 are made of the same material. An installation hole penetrating through the chassis 2 and the seal 1 is provided in the middle of the seal 1. The installation hole includes a large hole at the end far from the chassis 2 and a small hole at the end close to the chassis 2. A skeleton 3 is embedded and bonded in the large hole of the seal 1. The axis of the skeleton 3 coincides with the axis of the installation hole. The diameter of the skeleton 3 is larger than the diameter of the small hole. The connection between the large hole and the small hole is flush with the inner wall of the bottom end of the skeleton 3.

[0024] The skeleton 3 is used to insert a three-phase plug, and the small hole wraps the three-phase cable. The three groups of installation holes are respectively arranged on the chassis 2, and the three groups of seals 1 are independently sealed, reducing the cumulative error caused by assembly.

[0025] Both the chassis 2 and the seal 1 are made of rubber, and the skeleton 3 is made of high-strength plastic. The seal 1, the chassis 2 and the skeleton 3 are integrally formed by a vulcanization process.

[0026] Preferably, the three groups of seals 1 are arranged in a straight line, and an anti-misalignment groove 22 is provided on one side in the length direction of the chassis 2. The anti-misalignment groove 22 serves to prevent misplacement during installation and fixation.

[0027] The outer edge of the top end of the seal 1 is the top seal 11, the outer wall is the outer seal 12. In the middle of the seal 1 flush with the inner wall of the bottom end of the skeleton 3, there is a middle seal rib 13 protruding towards the large hole. The top seal 11, the outer seal 12 and the middle seal rib 13 are all in contact connection with the three-phase plug.

[0028] On the inner wall of the skeleton 3, there are multiple groups of inner convex edges 31 protruding towards the axis of the installation hole. The inner convex edges 31 are in contact connection with the three-phase plug.

[0029] After the three-phase plug is inserted, the top seal rib 11 and the outer seal 12 completely seal the outside of the plug in all directions. The middle seal rib 13 makes the space between the plug and the inner wall of the bottom end of the skeleton 3 completely sealed. The inner convex edges 31 are squeezed and also have a certain sealing effect to prevent impurities from entering between the plug and the installation hole.

[0030] On the outer wall of the skeleton 3, there are multiple groups of anti - detachment rib grooves 32. On the inner wall of the upper half of the seal 1, there are multiple groups of anti - detachment ribs 14 matching the anti - detachment rib grooves 32. The anti - detachment ribs 14 are embedded inside the anti - detachment rib grooves 32 and bonded to them.

[0031] Preferably, both the anti - detachment ribs 14 and the anti - detachment rib grooves 32 are four groups.

[0032] The outer wall of the top end of the skeleton 3 is an anti - detachment step 34. The cross - section of the anti - detachment step 34 is a right - angle, and the right - angle opening faces the top seal 11. The inner wall of the top end of the seal 1 is adhesively bonded to match the anti - detachment step 34.

[0033] The bottom end of the skeleton 3 is provided with an anti - detachment block 33 protruding towards the axis of the small hole. The anti - detachment block 33 is adhesively bonded to match the seal 1, and the anti - detachment block 33 is located below the middle seal rib 13.

[0034] Preferably, the cross - section of the anti - detachment block 33 is square.

[0035] The cooperation of the anti - detachment ribs 14 and the anti - detachment rib grooves 32, the cooperation of the inner wall of the top end of the seal 1 and the anti - detachment step 34, and the cooperation of the anti - detachment block 33 and the inner wall of the middle part of the seal 1 ensure the long - term stable operation of this connector.

[0036] On the inner wall of the bottom end of the seal 1, there are two groups of bottom seal ribs 16. Both groups of bottom seal ribs 16 protrude towards the axis of the small hole. Between the two groups of bottom seal ribs 16 is a corner seal 15. The corner seal 15 is a smooth curved surface protruding towards the axis of the small hole. The bottom seal ribs 16 and the corner seal 15 are both in contact with the outer wall of the three - phase cable. The bottom seal ribs 16 and the corner seal 15 seal the position between the compressor assembly end vitreous body and the three - phase cable, ensuring that dust and other pollutants cannot enter the compressor interior.

[0037] The innermost wall of the bottom end of the seal 1 is a bottom inner seal 17 for sealing between the compressor body and the compressor housing.

[0038] On the outer side of the chassis 2 is a bottom outer seal 21 for sealing between the compressor and the compressor housing. The cross-section of the bottom outer seal 21 is circular.

[0039] The bottom inner seal 17 and the bottom outer seal 21 form an external seal between the compressor and the compressor housing, ensuring that pollutants such as dust cannot enter the interior of the compressor.

[0040] It should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0041] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0042] In the present invention, unless otherwise clearly specified and limited, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or capable of communicating with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0044] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. A three-phase integrally molded sealed connector for an automobile air-conditioning compressor, characterized in that: The invention comprises a chassis (2), three groups of sealing members (1) are arranged on the chassis (2), a mounting hole penetrating the chassis (2) and the sealing member (1) is opened in the middle of the sealing member (1), the mounting hole comprises a large hole at one end away from the chassis (2) and a small hole at one end close to the chassis (2), a frame (3) is embedded and bonded in the large hole of the sealing member (1), the axis of the frame (3) coincides with the axis of the mounting hole, the diameter of the frame (3) is larger than the diameter of the small hole, and the junction between the large hole and the small hole is flush with the inner wall of the bottom end of the frame (3).

2. The sealed connector for a three-phase integrally molded automobile air-conditioning compressor according to claim 1, characterized in that: The chassis (2) and the sealing element (1) are both made of rubber, the frame (3) is made of high-strength plastic material, and the sealing element (1), the chassis (2) and the frame (3) are integrated into an integrated structure through a vulcanization integration process.

3. The sealed connector for a three-phase integrally molded automobile air-conditioning compressor according to claim 1, characterized in that: The three groups of sealing members (1) are arranged in a line and an anti-error groove (22) is provided on one side of the chassis (2) in the length direction.

4. The sealed connector for a three-phase integrally molded automobile air-conditioning compressor according to claim 1, characterized in that: The top outer edge of the sealing member (1) is a top seal (11), the outer wall is an outer seal (12), a middle sealing rib (13) protruding toward the large hole is arranged in the middle of the sealing member (1) which is flush with the inner wall of the bottom end of the frame (3), and the inner wall of the frame (3) is provided with a plurality of groups of inner convex edges (31) protruding toward the axial direction of the mounting hole, and the inner convex edges (31), the top seal (11), the outer seal (12) and the middle sealing rib (13) are all in contact with and connected to the three-phase plug.

5. The sealed connector for a three-phase integrally molded automobile air-conditioning compressor according to claim 1, characterized in that: The outer wall of the frame (3) is provided with a plurality of groups of anti-slip grooves (32), and the inner wall of the seal (1) located at the upper half is provided with a plurality of groups of anti-slip ribs (14) matching the anti-slip grooves (32), and the anti-slip ribs (14) are embedded in the anti-slip grooves (32) and bonded thereto.

6. The sealed connector for a three-phase integrally molded automobile air-conditioning compressor according to claim 1, characterized in that: The outer wall at the top of the frame (3) is an anti-slip step (34), the cross section of the anti-slip step (34) is a right angle, the right angle opening faces the outside of the seal (1), and the inner wall at the top of the seal (1) is matched and bonded to the anti-slip step (34).

7. The sealed connector for a three-phase integrally molded automobile air-conditioning compressor according to claim 1, characterized in that: The bottom end of the frame (3) is provided with an anti-slip block (33) protruding toward the axis of the small hole. The anti-slip block (33) is bonded to the sealing member (1) in a corresponding matching manner. The anti-slip block (33) is located below the middle sealing rib (13).

8. The sealed connector for a three-phase integrally molded automobile air-conditioning compressor according to claim 1, characterized in that: Two groups of bottom sealing ribs (16) are arranged on the inner wall of the bottom end of the sealing member (1), and both groups of bottom sealing ribs (16) are protruding toward the axis of the small hole. A corner seal (15) is arranged between the two groups of bottom sealing ribs (16), and the corner seal (15) is a smooth curved surface protruding toward the axis of the small hole. Both the bottom sealing ribs (16) and the corner seal (15) are in contact with the outer wall of the three-phase cable.

9. The sealed connector for a three-phase integrally molded automobile air-conditioning compressor according to claim 1, characterized in that: The bottom inner wall of the sealing member (1) is a bottom inner seal (17) for sealing between the compressor and the compressor housing.

10. The sealed connector for a three-phase integrally molded automobile air-conditioning compressor according to claim 1, characterized in that: The outer side of the bottom plate (2) is a bottom outer seal (21) for sealing between the compressor and the shell, and the cross section of the bottom outer seal (21) is circular.

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