A lead wire socket, a compressor and a vehicle

Abstract

This utility model provides a lead-out socket, a compressor, and a vehicle. The lead-out socket includes a housing and a cover plate. The cover plate includes a first partition and a second partition protruding towards the housing. The housing includes a third partition and a fourth partition protruding towards the cover plate. The cover plate and the housing can be fastened together. After fastening, the third partition and the first partition form a first partition structure, and the fourth partition and the second partition form a second partition structure. A first cavity for accommodating a first terminal is formed between the first partition structure and the inner wall of the housing. A second cavity for accommodating a second terminal is formed between the first partition structure and the second partition structure. A third cavity for accommodating a third terminal is formed between the second partition structure and the inner wall of the housing. According to this utility model, a double-layer sealing structure can be formed, which lengthens the discharge distance at the unsealed gaps inside the socket, improves the insulation performance of the terminal, reduces leakage current, and prevents leakage.

Description

Technical Field

[0001] This utility model relates to the field of compressor technology, specifically to a lead wire socket, a compressor, and a vehicle. Background Technology

[0002] Currently, most automotive air conditioning compressors used in new energy vehicles are modified versions of traditional household air conditioning compressors. However, significant differences in application scenarios lead to systemic safety hazards: automotive compressors require a horizontal mounting structure and are subjected to high-frequency three-dimensional vibrations and instantaneous impact loads generated during vehicle operation. They also face harsh operating conditions such as wide temperature ranges and immersion in a mixture of refrigerant and refrigeration oil. Existing improved solutions have significant shortcomings in reliability design and adaptability to operating conditions, resulting in multiple safety incidents such as excessive leakage current and short circuits in connectors.

[0003] Existing technological defects and safety hazards:

[0004] 1. Risk of insulation failure due to liquid refrigerant wetting

[0005] Due to the limitations of the horizontal installation structure, the terminal block is constantly immersed in a mixture of liquid refrigerant and refrigeration oil. Under the high-frequency operation of the compressor, the electrolyte film that forms on the surface of the terminal block causes the leakage current to exceed the standard limit, posing a risk of electric shock and ECU false triggering.

[0006] 2. Failure Mechanism of Sealing and Protection Scheme

[0007] Existing epoxy resin potting solutions suffer from thermal expansion coefficient mismatch, which can lead to microcracks under thermal shock, causing refrigerant penetration and sealing failure.

[0008] Because the wiring terminals of the existing air conditioner lead wire socket have low insulation performance and other technical problems, this utility model studies and designs a lead wire socket, a compressor and a vehicle. Utility Model Content

[0009] Therefore, the technical problem to be solved by this utility model is to overcome the defect of low insulation performance of the wiring terminals of the compressor lead wire socket in the prior art, thereby providing a lead wire socket, compressor and vehicle.

[0010] To solve the above problems, this utility model provides a lead wire socket, which includes:

[0011] The housing and the cover plate, the cover plate including a first partition and a second partition protruding toward the housing, the first partition and the second partition being spaced apart; the housing including a third partition and a fourth partition protruding toward the cover plate, the third partition and the fourth partition being spaced apart; the cover plate and the housing can be fastened together, after fastening, the third partition and the first partition form a first partition structure, the fourth partition and the second partition form a second partition structure, a first cavity for accommodating a first terminal is formed between the first partition structure and the inner wall of the housing, a second cavity for accommodating a second terminal is formed between the first partition structure and the second partition structure, and a third cavity for accommodating a third terminal is formed between the second partition structure and the inner wall of the housing.

[0012] In some implementations...

[0013] After the cover plate is fastened to the housing, the third partition plate is attached to the first partition plate to form a first partition structure, and the fourth partition plate is attached to the second partition plate to form a second partition structure. The first partition plate on the cover plate is closer to the third partition plate and faces the second cavity, the third partition plate is closer to the first partition plate and faces the first cavity, the second partition plate on the cover plate is closer to the fourth partition plate and faces the second cavity, and the fourth partition plate is closer to the second partition plate and faces the third cavity.

[0014] In some implementations...

[0015] The cover plate further includes a first base plate, one end of the first partition plate is connected to the first base plate and the other end extends toward the housing, and one end of the second partition plate is connected to the first base plate and the other end extends toward the housing.

[0016] The housing also includes a second bottom plate, one end of the third partition is connected to the second bottom plate and the other end extends toward the cover plate, and one end of the fourth partition is connected to the second bottom plate and the other end extends toward the cover plate.

[0017] In some implementations...

[0018] The first partition and the free ends of the second partition are connected to form a connecting end; a first snap-fit ​​structure is provided on the third partition and / or the fourth partition extending in the horizontal direction, the first snap-fit ​​structure is located between the third partition and the fourth partition, and the first snap-fit ​​structure can fit and snap-fit ​​the first partition, the second partition and the connecting end.

[0019] In some implementations...

[0020] The cover plate also includes a fifth partition plate, one end of which is connected to the connecting end, and the other end extends away from the first partition plate and / or the second partition plate to form a free end. The fifth partition plate is inserted into the cavity between the third partition plate and the fourth partition plate. A second snap-fit ​​structure is provided on the fifth partition plate extending horizontally. The second snap-fit ​​structure is fitted and snapped against the side of the first snap-fit ​​structure opposite to the connecting end.

[0021] In some implementations...

[0022] The housing includes an internal cavity, in which the third and fourth partitions are located. After the cover plate is fastened to the housing, the first and second partitions are also located in the internal cavity. The first bottom plate is fastened to the side plate of the housing to form a sealed cavity in the internal cavity; and / or, the cover plate is fastened to the housing and then integrally injection molded.

[0023] In some implementations...

[0024] The first, second, third, and fourth partitions all extend in the same direction. The second base plate also has a first lead hole, a second lead hole, and a third lead hole. The axes of the first, second, and third lead holes are all the same and perpendicular to the extension direction of the first partition. The first lead hole allows an external first terminal to be introduced into the first cavity for connection to the first terminal. The second lead hole allows an external second terminal to be introduced into the second cavity for connection to the second terminal. The third lead hole allows an external third terminal to be introduced into the third cavity for connection to the third terminal.

[0025] The housing is also provided with a fourth lead hole, a fifth lead hole, and a sixth lead hole. The axial directions of the fourth lead hole, the fifth lead hole, and the sixth lead hole are all the same and are consistent with the extension direction of the first partition. The fourth lead hole can introduce an external first lead into the first cavity to connect with the first terminal. The fifth lead hole can introduce an external second lead into the second cavity to connect with the second terminal. The sixth lead hole can introduce an external third lead into the third cavity to connect with the third terminal.

[0026] In some implementations...

[0027] It also includes an outer sealing shell, which is fastened to and wrapped around the outer periphery of at least a portion of the structure of the housing. After the outer sealing shell is fastened to the outer periphery of the housing, the outer sealing shell, the housing, and the cover plate are integrally injection molded a second time.

[0028] In some implementations...

[0029] When including the first lead hole, second lead hole, third lead hole, fourth lead hole, fifth lead hole, and sixth lead hole:

[0030] The outer sealing shell is provided with a first annular post, a second annular post, and a third annular post. The first annular post is in communication with the first lead hole, the second annular post is in communication with the second lead hole, and the third annular post is in communication with the third lead hole.

[0031] The outer sealing shell is provided with a seventh lead hole, an eighth lead hole and a ninth lead hole. The seventh lead hole penetrates the outer sealing shell and is in communication with the fourth lead hole. The eighth lead hole penetrates the outer sealing shell and is in communication with the fifth lead hole. The ninth lead hole penetrates the outer sealing shell and is in communication with the sixth lead hole.

[0032] In some implementations...

[0033] The first cavity matches the shape of the first terminal, the second cavity matches the shape of the second terminal, and the third cavity matches the shape of the third terminal. The depths of the first cavity, the second cavity, and the third cavity are equal, all being L+L1. ​​The heights of the first terminal, the second terminal, and the third terminal are equal, all being L, where L1≥2mm.

[0034] In some implementations...

[0035] The heights of the first partition, the second partition, the third partition, and the fourth partition are all equal, and each has a height of L2, with L2 ≥ 12 mm.

[0036] In some implementations...

[0037] The outer periphery of at least a portion of the structure of the first terminal is further fitted with a first terminal sleeve, the outer periphery of at least a portion of the structure of the second terminal is further fitted with a second terminal sleeve, the outer periphery of at least a portion of the structure of the third terminal is further fitted with a third terminal sleeve, the outer periphery of at least a portion of the structure of the first terminal sleeve is further fitted with a first terminal ceramic ring, the outer periphery of at least a portion of the structure of the second terminal sleeve is further fitted with a second terminal ceramic ring, and the outer periphery of at least a portion of the structure of the third terminal sleeve is further fitted with a third terminal ceramic ring;

[0038] The inner diameters of the first, second, and third annular posts are all equal, ΦD1. The heights of the first, second, and third annular posts are all equal, H1. The outer diameters of the first, second, and third terminal ceramic rings are all equal, ΦD2. The heights of the first, second, and third terminal sheaths are all equal, H2. Furthermore, 0.05mm ≤ ΦD1 - ΦD2 ≤ 0.2mm, and H2 - H1 ≤ 2mm.

[0039] This utility model also provides a compressor, which includes the aforementioned lead wire socket.

[0040] This utility model also provides a vehicle that includes the aforementioned compressor.

[0041] The lead wire socket, compressor, and vehicle provided by this utility model have the following beneficial effects:

[0042] 1. This utility model sets the lead wire socket in a structure that includes both a housing and a cover plate. The cover plate has first and second partitions protruding towards the housing, and the housing has third and fourth partitions protruding towards the cover plate. The first and third partitions combine to form a first partition structure, and the second and fourth partitions combine to form a second partition structure. This creates a first cavity between the first partition structure and the inner wall of the housing to accommodate a first terminal, a second cavity between the first and second partitions to accommodate a second terminal, and a third cavity between the second partition structure and the inner wall of the housing to accommodate a third terminal. This creates a double-layered sealing structure with double partitions between the first and second terminals, and also between the second and third terminals. This extends the discharge distance at unsealed gaps inside the socket, improving the insulation and sealing performance of the terminals, especially significantly improving the insulation and sealing performance of the compressor when immersed in liquid refrigerant, reducing leakage current, and preventing leakage. This effectively solves the problem of low insulation performance of the terminals in existing compressor lead wire sockets.

[0043] 2. This utility model further enhances the insulation performance of the socket housing, socket cover, terminals, and leads by integrally molding the cover plate and housing together, thereby sealing the socket housing, socket cover, terminals, and leads and filling the gaps in the socket. Furthermore, after the outer sealing shell is attached to the outer periphery of the housing, the outer sealing shell, housing, and cover plate are integrally molded a second time, further sealing the outer sealing shell, socket housing, socket cover, terminals, and leads, further improving the insulation performance of the terminals. Finally, this utility model further enhances the insulation capability under conditions of metal dust adhesion by forming three annular structures on the socket that cooperate with the terminals, achieving component integration and reducing the risk of component disintegration and detachment under strong vibration conditions. Attached Figure Description

[0044] Figure 1 This is an overall structural diagram of the lead wire socket of this utility model;

[0045] Figure 2 This is an overall structural diagram of the lead wire socket of this utility model excluding the terminal block;

[0046] Figure 3 This is a schematic diagram of the terminal block portion of this utility model;

[0047] Figure 4 yes Figure 2 Exploded structure diagram;

[0048] Figure 5 yes Figure 4 A diagram of the structure viewed from below;

[0049] Figure 5a yes Figure 5 Enlarged structural diagram of the first snap-fit ​​structure;

[0050] Figure 6 yes Figure 4 Three-dimensional and front sectional views of the housing and lead-out wires;

[0051] Figure 7 yes Figure 4 Top and side views of the cover plate;

[0052] Figure 8 yes Figure 4 Top and bottom views of the shell structure;

[0053] Figure 9 yes Figure 4 Top view and three-dimensional structural diagram of the lead wire assembly and terminal block.

[0054] The reference numerals in the attached figures are as follows:

[0055] 1. Housing; 2. Cover plate; 3. First partition; 4. Second partition; 5. Third partition; 6. Fourth partition; 7. First cavity; 8. Second cavity; 9. Third cavity; 10. First base plate; 11. Second base plate; 12. First snap-fit ​​structure; 13. Fifth partition; 14. Second snap-fit ​​structure; 15. First lead hole; 16. Second lead hole; 17. Third lead hole; 18. First terminal; 19. Second terminal; 20. Third terminal; 21. First lead; 22. Second lead 1. Wire; 23. Third lead wire; 24. First ring post; 25. Second ring post; 26. Third ring post; 27. Seventh lead hole; 28. Eighth lead hole; 29. ​​Ninth lead hole; 30. First terminal sheath; 31. Second terminal sheath; 32. Third terminal sheath; 33. First terminal ceramic ring; 34. Second terminal ceramic ring; 35. Third terminal ceramic ring; 36. Outer sealing shell; 37. First terminal; 38. Second terminal; 39. Third terminal. Detailed Implementation

[0056] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0057] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0059] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0060] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0061] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0062] like Figure 1-9 As shown, this utility model provides a lead wire socket, which includes:

[0063] The housing 1 and the cover plate 2 are provided. The cover plate 2 includes a first partition 3 and a second partition 4 protruding toward the housing 1, with the first partition 3 and the second partition 4 spaced apart. The housing 1 includes a third partition 5 and a fourth partition 6 protruding toward the cover plate 2, with the third partition 5 and the fourth partition 6 spaced apart. The cover plate 2 and the housing 1 can be fastened together. After fastening, the third partition 5 and the first partition 3 form a first partition structure, and the fourth partition 6 and the second partition 4 form a second partition structure. A first cavity 7 for accommodating a first terminal 37 is formed between the first partition structure and the inner wall of the housing 1. A second cavity 8 for accommodating a second terminal 38 is formed between the first partition structure and the second partition structure. A third cavity 9 for accommodating a third terminal 39 is formed between the second partition structure and the inner wall of the housing 1.

[0064] This invention addresses the issue of a lead-out socket comprising both a housing and a cover. The cover has first and second partitions protruding towards the housing, while the housing has third and fourth partitions protruding towards the cover. The first and third partitions combine to form a first partition structure, and the second and fourth partitions combine to form a second partition structure. This creates a first cavity between the first partition structure and the inner wall of the housing to accommodate a first terminal, a second cavity between the first and second partitions to accommodate a second terminal, and a third cavity between the second partition structure and the inner wall of the housing to accommodate a third terminal. This creates a double-layered sealing structure with double partitions between the first and second terminals, and also between the second and third terminals. This extends the discharge distance at unsealed gaps inside the socket, improving the insulation and sealing performance of the terminals, particularly significantly enhancing the insulation and sealing performance of the compressor when immersed in liquid refrigerant, reducing leakage current, and preventing leakage. This effectively solves the problem of low insulation performance of the terminals in existing compressor lead-out sockets.

[0065] Compared to the single-layer partition in the existing technology, which has insufficient interphase creepage distance and can lead to interphase arcing, the improved technical solution of this utility model adopts a double-layer partition with the cover partition snapping into the shell partition. When discharging under high voltage, the high voltage creepage distance will be forcibly pulled to the height of the shell cavity, ensuring that the minimum distance between charged bodies under vacuum conditions is greater than the discharge distance. This greatly improves the interphase insulation level and sealing performance of the component, reduces leakage current, and prevents leakage.

[0066] In some implementations...

[0067] After the cover plate 2 is fastened to the housing 1, the third partition plate 5 is attached to the first partition plate 3 to form a first partition structure, and the fourth partition plate 6 is attached to the second partition plate 4 to form a second partition structure. The first partition plate 3 on the cover plate 2 is closer to the third partition plate 5 and faces the second cavity 8, the third partition plate 5 is closer to the first partition plate 3 and faces the first cavity 7, the second partition plate 4 on the cover plate 2 is closer to the fourth partition plate 6 and faces the second cavity 8, and the fourth partition plate 6 is closer to the second partition plate 4 and faces the third cavity 9.

[0068] This is a preferred structural form of the first and third partitions of this utility model. By bonding them together, the sealing area between them can be further increased, and relatively sealed first and second cavities can be further formed, improving the sealing effect on the first and second terminals and improving the insulation performance of the terminals. Similarly, the second and fourth partitions can also be bonded together to further increase the sealing area between them, further forming relatively sealed second and third cavities, improving the sealing effect on the second and third terminals and improving the insulation performance of the terminals.

[0069] This utility model provides a reinforced insulation type fully sealed socket solution for use in the compressor cavity. This solution achieves a labyrinth structure by setting an insulating layer on the surface of the live parts and setting an insulating partition inside the socket housing and a reverse-locking protective plate on the socket cover. This seals the originally exposed live metal connectors inside the compressor, lengthens the discharge distance at the gaps inside the socket that cannot be sealed, and greatly improves the insulation and sealing performance of the compressor when immersed in liquid refrigerant.

[0070] In some implementations...

[0071] The cover plate 2 further includes a first base plate 10, one end of the first partition plate 3 is connected to the first base plate 10 and the other end extends toward the housing 1, and one end of the second partition plate 4 is connected to the first base plate 10 and the other end extends toward the housing 1.

[0072] The housing 1 also includes a second base plate 11, one end of the third partition 5 is connected to the second base plate 11 and the other end extends toward the cover plate 2, and one end of the fourth partition 6 is connected to the second base plate 11 and the other end extends toward the cover plate 2.

[0073] This is a further preferred structural form of the lead-out socket of this utility model, namely, preferred structural forms of the cover plate and the housing respectively. The cover plate, through the setting of the first base plate, can be used to set the first and second partitions on it respectively, and protrudes towards the housing. The housing, through the setting of the second base plate, can be used to set the third and fourth partitions on it respectively, and protrudes towards the cover plate, thereby forming an effective combination and connection, forming three relatively independent and sealed first, second and third cavities, which are used to set the first, second and third wiring terminals respectively, realizing the sealing of the wiring terminals and improving the insulation performance of the wiring terminals.

[0074] In some implementations...

[0075] The free ends of the first partition 3 and the second partition 4 are connected to form a connecting end; a first snap-fit ​​structure 12 is provided on the third partition 5 and / or the fourth partition 6 extending in the horizontal direction. The first snap-fit ​​structure 12 is located between the third partition 5 and the fourth partition 6, and the first snap-fit ​​structure 12 can fit and snap-fit ​​the first partition 3, the second partition 4 and the connecting end.

[0076] This invention further enhances the sealing effect of the first and second partitions by connecting the free ends of the first and second partitions to form a connecting end, and forming a first snap-fit ​​structure on the third and / or fourth partitions. The first and second partitions are fitted and snapped together by the snap-fit ​​structure.

[0077] In some implementations...

[0078] The cover plate 2 also includes a fifth partition plate 13. One end of the fifth partition plate 13 is connected to the connecting end, and the other end extends away from the first partition plate 3 and / or the second partition plate 4 to form a free end. The fifth partition plate 13 is inserted into the cavity between the third partition plate 5 and the fourth partition plate 6. A second snap-fit ​​structure 14 is provided on the fifth partition plate 13 extending in the horizontal direction. The second snap-fit ​​structure 14 is fitted and snapped against the side of the first snap-fit ​​structure 12 away from the connecting end.

[0079] This invention further enhances the sealing area of ​​the third and fourth partitions by providing a fifth partition on the cover plate, which is inserted into the third and fourth partitions, thereby improving the sealing and insulation effect on the terminals. Furthermore, the second snap-fit ​​structure allows for a close snap-fit ​​connection between the other end of the first snap-fit ​​structure, effectively limiting the first and second partitions while further improving the sealing effect between the first and second partitions and the third and fourth partitions, thus further enhancing the sealing and insulation effect on the terminals.

[0080] In some implementations...

[0081] The housing 1 includes an internal cavity, in which the third partition 5 and the fourth partition 6 are located. After the cover plate 2 is fastened to the housing 1, the first partition 3 and the second partition 4 are also located in the internal cavity. The first bottom plate 10 is fastened to the side plate of the housing 1 to form a sealed cavity in the internal cavity; and / or, the cover plate 2 is fastened to the housing 1 and then integrally injection molded.

[0082] The housing of this utility model preferably has an internal cavity for accommodating the third and fourth partitions, and can also be used to accommodate the first and second partitions, thus effectively forming three relatively sealed first, second and third cavities, allowing all three terminals to be sealed and improving the sealing effect of the terminals. Furthermore, this utility model further seals the socket housing, socket cover, terminals and leads by integral injection molding after the cover plate is snapped into the housing, filling the gaps in the socket and further improving the insulation performance of the terminals.

[0083] In some implementations...

[0084] The first partition 3, the second partition 4, the third partition 5, and the fourth partition 6 all extend in the same direction. The second base plate 11 is also provided with a first lead hole 15, a second lead hole 16, and a third lead hole 17. The axial directions of the first lead hole 15, the second lead hole 16, and the third lead hole 17 are all the same and perpendicular to the extension direction of the first partition 3. The first lead hole 15 allows an external first terminal 18 to be introduced into the first cavity 7 to connect with the first terminal 37. The second lead hole 16 allows an external second terminal 19 to be introduced into the second cavity 8 to connect with the second terminal 38. The third lead hole 17 allows an external third terminal 20 to be introduced into the third cavity 9 to connect with the third terminal 39.

[0085] The housing 1 is also provided with a fourth lead hole, a fifth lead hole and a sixth lead hole. The axial directions of the fourth lead hole, the fifth lead hole and the sixth lead hole are all the same and are consistent with the extension direction of the first partition 3. The fourth lead hole can introduce the external first lead 21 into the first cavity 7 to connect with the first terminal 37. The fifth lead hole can introduce the external second lead 22 into the second cavity 8 to connect with the second terminal 38. The sixth lead hole can introduce the external third lead 23 into the third cavity 9 to connect with the third terminal 39.

[0086] This utility model also has first, second and third lead holes, which can respectively accommodate the insertion of the first, second and third terminals to form electrical connections with the first, second and third terminals. The fourth, fifth and sixth lead holes on the housing can respectively introduce the first, second and third leads to be inserted and form electrical connections with the first, second and third terminals. This effectively connects the terminals, leads and wires into one unit, and also effectively ensures that there is no leakage between the terminals, leads and wires, thus improving the insulation performance.

[0087] In some implementations...

[0088] It also includes an outer sealing shell 36, which is fastened to and wrapped around the outer periphery of at least a portion of the structure of the housing 1. After the outer sealing shell 36 is fastened to the outer periphery of the housing 1, the outer sealing shell 36 is integrally injection molded with the housing 1 and the cover plate 2 for a second time.

[0089] This invention further improves the insulation performance of the terminals by performing a second integral injection molding on the outer sealing shell, the socket housing, the socket cover, the wiring terminals, and the lead wires after the outer sealing shell is fastened to the outer periphery of the housing.

[0090] In some implementations...

[0091] When including the first lead hole 15, the second lead hole 16, the third lead hole 17, the fourth lead hole, the fifth lead hole, and the sixth lead hole:

[0092] The outer sealing shell 36 is provided with a first annular post 24, a second annular post 25, and a third annular post 26. The first annular post 24 is in communication with the first lead hole 15, the second annular post 25 is in communication with the second lead hole 16, and the third annular post 26 is in communication with the third lead hole 17.

[0093] The outer sealing shell 36 is provided with a seventh lead hole 27, an eighth lead hole 28 and a ninth lead hole 29. The seventh lead hole 27 penetrates the outer sealing shell 36 and is in communication with the fourth lead hole. The eighth lead hole 28 penetrates the outer sealing shell 36 and is in communication with the fifth lead hole. The ninth lead hole 29 penetrates the outer sealing shell 36 and is in communication with the sixth lead hole.

[0094] This invention further enhances insulation under conditions of metal dust adhesion by forming three annular structures on the outer sealing shell of the socket to cooperate with the terminal post, and achieves component integration, reducing the risk of component disintegration and detachment under strong vibration conditions.

[0095] This invention utilizes a ring-shaped structure formed by injection molding on the top of the outer sealing shell to further enhance the insulation effect of the component to ground, ensuring good insulation even in extreme cases where metal dust accumulates.

[0096] In some implementations...

[0097] The first cavity 7 is shaped to match the first terminal 37, the second cavity 8 is shaped to match the second terminal 38, and the third cavity 9 is shaped to match the third terminal 39. The depths of the first cavity 7, the second cavity 8, and the third cavity 9 are equal, all being L+L1. ​​The heights of the first terminal 37, the second terminal 38, and the third terminal 39 are equal, all being L, where L1≥2mm.

[0098] This invention sets the cavity depth to L+L1 (L is the terminal height), and L1≥2mm, which ensures that the distance between the terminal and the end face of the housing is guaranteed, ensuring that the cover can be fastened more securely to the housing when it is snapped in, thus lengthening the discharge distance between the terminals and further improving the insulation performance.

[0099] In some implementations...

[0100] The heights of the first partition 3, the second partition 4, the third partition 5, and the fourth partition 6 are all equal, and all are L2, with L2 ≥ 12mm.

[0101] This invention, by setting the height of all four insulating plates to L2≥12mm, can ensure the creepage distance under vacuum conditions, further improve insulation performance, and prevent leakage.

[0102] In some implementations...

[0103] The outer periphery of at least a portion of the structure of the first terminal 18 is further fitted with a first terminal sleeve 30, the outer periphery of at least a portion of the structure of the second terminal 19 is further fitted with a second terminal sleeve 31, the outer periphery of at least a portion of the structure of the third terminal 20 is further fitted with a third terminal sleeve 32, the outer periphery of at least a portion of the structure of the first terminal sleeve 30 is further fitted with a first terminal ceramic ring 33, the outer periphery of at least a portion of the structure of the second terminal sleeve 31 is further fitted with a second terminal ceramic ring 34, and the outer periphery of at least a portion of the structure of the third terminal sleeve 32 is further fitted with a third terminal ceramic ring 35.

[0104] The inner diameters of the first annular post 24, the second annular post 25, and the third annular post 26 are all equal, all being ΦD1. The heights of the first annular post 24, the second annular post 25, and the third annular post 26 are all equal, all being H1. The outer diameters of the first terminal ceramic ring 33, the second terminal ceramic ring 34, and the third terminal ceramic ring 35 are all equal, all being ΦD2. The heights of the first terminal sheath 30, the second terminal sheath 31, and the third terminal sheath 32 are all equal, all being H2, and all have 0.05mm≤ΦD1-ΦD2≤0.2mm and H2-H1≤2mm.

[0105] By limiting the above-mentioned size range, effective assembly between the ring post, terminal ceramic ring, and terminal sheath can be ensured. This ensures smooth assembly while preventing excessive assembly gaps, further improving insulation performance, reducing leakage current, and preventing leakage.

[0106] The specific processing procedure for this utility model is as follows:

[0107] First, the socket housing 1 and the socket cover plate 2 are produced using injection molding. The housing 1 consists of a base plate, a three-sided enclosed outer wall, and two partitions. The partitions separate the housing into three independent chambers arranged side by side. The shape of the chamber matches the shape of the terminal. The depth of the chamber is L+L1 (L is the height of the terminal, and L1 is the distance between the upper surface of the terminal and the upper surface of the housing), and L1≥2mm. The base plate has three insertion holes, and the hole positions match the positions of the terminal pins. The hole diameter is D2 (i.e., the outer diameter D2 of the ceramic ring of the terminal, which matches the outer diameter d1 of the insulating sleeve on the pin (equal to the inner diameter D1 of the ring post), i.e., 0.01≤ΦD1-ΦD2≤0.05, which ensures smooth assembly while preventing excessive assembly gaps).

[0108] Cover plate 2 consists of a base plate, an extended U-shaped isolation guard plate, and three lead wire sealing heads (e.g., Figure 7 As shown), the height of the U-shaped isolation plate is L2. To ensure the creepage distance requirement of L2>12mm under vacuum conditions, the inner cavity shape formed by the isolation plate is related to the wiring terminal.

[0109] During assembly, first crimp the three curved contact surfaces of the terminal block onto the corresponding three leads (e.g., Figure 9 (as shown), and then the lead wires with terminals are inserted into the three corresponding cavities of the housing (as shown). Figure 6As shown), cover plate 2 is placed on top. At this time, the U-shaped isolation plate on cover plate 2 is inverted into the cavity in the middle of the shell. The U-shaped isolation plate of the cover plate completely covers the middle terminal. The shell partition forms a second layer of protection on both sides. At the same time, the lead wire sealing head presses the lead wire, sealing the socket shell, socket cover plate, lead wire and terminal. At this time, the discharge distance between the middle terminal and the two side terminals is L2+L1, which is greatly improved compared with the discharge distance of 2*L1 between adjacent two ends of the single-layer partition. The experiment proved that the double-layer partition structure of the reverse-clamping structure of this utility model can withstand the extreme test of vacuum degree: -87±3Kpa; voltage: 3000±10V. That is, this utility model passed the above test, while the test result of the prior art is "failed".

[0110] Finally, the sealing assembly is subjected to secondary injection molding to form the outer sealing shell 36, and three annular sleeves are formed at the three socket positions. The annular sleeves are finally fitted into the ceramic ring of the terminal, forming a relatively sealed space between the terminal pin and the socket. Together with the terminal pin sleeve, they form two protective barriers. Tests have shown that this result can effectively protect against insulation failure caused by grounding due to the accumulation of metal dust.

[0111] This utility model also provides a compressor, which includes the aforementioned lead wire socket.

[0112] This invention provides a reinforced, fully sealed socket solution for use within a compressor cavity. This solution achieves a labyrinth structure by setting an insulating layer on the surface of the live parts, and by incorporating an insulating partition inside the socket housing and a snap-fit ​​protective plate on the socket cover. This seals off the previously exposed live metal connectors inside the compressor, extending the discharge distance at unsealed gaps within the socket and significantly improving the compressor's insulation performance when immersed in liquid refrigerant. Simultaneously, a secondary injection molding process is used to seal the socket housing, socket cover, terminals, and leads, filling the socket gaps and forming three ring structures on the socket that engage with the terminals, further enhancing insulation even with metal dust adhering to them.

[0113] This utility model has the following beneficial effects:

[0114] 1. Reduce overall leakage current and improve safety voltage level;

[0115] 2. Improve the level of phase-to-phase insulation.

[0116] This utility model can solve the following technical problems:

[0117] 1. Solve the problem of insufficient breakdown gap of live parts inside the connector;

[0118] 2. Solved the refrigerant compatibility problem caused by the insulation material manufacturing process;

[0119] 3. Solve the problem that existing processes cannot seal plug openings and process gaps.

[0120] This utility model also provides a vehicle that includes the aforementioned compressor.

[0121] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A lead-out socket, characterized in that: include: The housing (1) and the cover plate (2) are provided. The cover plate (2) includes a first partition (3) and a second partition (4) protruding toward the housing (1) and the first partition (3) and the second partition (4) are spaced apart. The housing (1) includes a third partition (5) and a fourth partition (6) protruding toward the cover plate (2) and the third partition (5) and the fourth partition (6) are spaced apart. The cover plate (2) and the housing (1) can be fastened together. After fastening, the third partition (5) and the first partition (3) form a first partition structure, and the fourth partition (6) and the second partition (4) form a second partition structure. A first cavity (7) for accommodating a first terminal (37) is formed between the first partition structure and the inner wall of the housing (1). A second cavity (8) for accommodating a second terminal (38) is formed between the first partition structure and the second partition structure. A third cavity (9) for accommodating a third terminal (39) is formed between the second partition structure and the inner wall of the housing (1).

2. The lead-out socket according to claim 1, characterized in that: After the cover plate (2) is fastened to the housing (1), the third partition plate (5) is attached to the first partition plate (3) to form a first partition structure, and the fourth partition plate (6) is attached to the second partition plate (4) to form a second partition structure. The first partition plate (3) on the cover plate (2) is closer to the third partition plate (5) and faces the second cavity (8), the third partition plate (5) is closer to the first partition plate (3) and faces the first cavity (7), the second partition plate (4) on the cover plate (2) is closer to the fourth partition plate (6) and faces the second cavity (8), and the fourth partition plate (6) is closer to the second partition plate (4) and faces the third cavity (9).

3. The lead-out socket according to claim 1, characterized in that: The cover plate (2) further includes a first base plate (10), one end of the first partition plate (3) is connected to the first base plate (10) and the other end extends toward the housing (1), and one end of the second partition plate (4) is connected to the first base plate (10) and the other end extends toward the housing (1). The housing (1) further includes a second bottom plate (11), one end of the third partition (5) is connected to the second bottom plate (11) and the other end extends toward the cover plate (2), and one end of the fourth partition (6) is connected to the second bottom plate (11) and the other end extends toward the cover plate (2).

4. The lead-out socket according to claim 1, characterized in that: The first partition (3) is connected to the free end of the second partition (4) to form a connecting end; a first snap-fit ​​structure (12) is provided on the third partition (5) and / or the fourth partition (6) extending in the horizontal direction. The first snap-fit ​​structure (12) is located between the third partition (5) and the fourth partition (6). The first snap-fit ​​structure (12) can fit and snap-fit ​​the first partition (3), the second partition (4) and the connecting end.

5. The lead-out socket according to claim 4, characterized in that: The cover plate (2) further includes a fifth partition plate (13), one end of which is connected to the connecting end, and the other end extends away from the first partition plate (3) and / or the second partition plate (4) to form a free end. The fifth partition plate (13) is inserted into the cavity between the third partition plate (5) and the fourth partition plate (6). A second snap-fit ​​structure (14) is provided on the fifth partition plate (13) extending in the horizontal direction. The second snap-fit ​​structure (14) is fitted and snapped against the side of the first snap-fit ​​structure (12) away from the connecting end.

6. The lead-out socket according to claim 3, characterized in that: The housing (1) includes an internal cavity, in which the third partition (5) and the fourth partition (6) are located. After the cover plate (2) is fastened to the housing (1) as a whole, the first partition plate (3) and the second partition plate (4) are also located in the internal cavity. The first bottom plate (10) is connected to the side plate of the housing (1) to form a sealed cavity in the internal cavity; and / or, the cover plate (2) is fastened to the housing (1) as a whole and then integrally injection molded.

7. The lead-out socket according to claim 3, characterized in that: The first partition (3), the second partition (4), the third partition (5), and the fourth partition (6) all extend in the same direction. The second bottom plate (11) is also provided with a first lead hole (15), a second lead hole (16), and a third lead hole (17). The axial directions of the first lead hole (15), the second lead hole (16), and the third lead hole (17) are all the same and perpendicular to the extension direction of the first partition (3). The first lead hole (15) can introduce an external first terminal (18) into the first cavity (7) to connect with the first terminal (37). The second lead hole (16) can introduce an external second terminal (19) into the second cavity (8) to connect with the second terminal (38). The third lead hole (17) can introduce an external third terminal (20) into the third cavity (9) to connect with the third terminal (39). The housing (1) is also provided with a fourth lead hole, a fifth lead hole and a sixth lead hole. The axial directions of the fourth lead hole, the fifth lead hole and the sixth lead hole are all the same and are consistent with the extension direction of the first partition (3). The fourth lead hole can introduce the external first lead (21) into the first cavity (7) to connect with the first terminal (37). The fifth lead hole can introduce the external second lead (22) into the second cavity (8) to connect with the second terminal (38). The sixth lead hole can introduce the external third lead (23) into the third cavity (9) to connect with the third terminal (39).

8. The lead-out socket according to claim 1, characterized in that: It also includes an outer sealing shell (36), which is fastened to and wrapped around the outer periphery of at least a portion of the structure of the housing (1). After the outer sealing shell (36) is fastened to the outer periphery of the housing (1), the outer sealing shell (36) is integrally injection molded with the housing (1) and the cover plate (2) for a second time.

9. The lead-out socket according to claim 8, characterized in that: When including the first lead hole (15), the second lead hole (16), the third lead hole (17), the fourth lead hole, the fifth lead hole, and the sixth lead hole: The outer sealing shell (36) is provided with a first annular post (24), a second annular post (25), and a third annular post (26). The first annular post (24) is in communication with the first lead hole (15), the second annular post (25) is in communication with the second lead hole (16), and the third annular post (26) is in communication with the third lead hole (17). The outer sealing shell (36) is provided with a seventh lead hole (27), an eighth lead hole (28) and a ninth lead hole (29). The seventh lead hole (27) penetrates the outer sealing shell (36) and is in relative communication with the fourth lead hole. The eighth lead hole (28) penetrates the outer sealing shell (36) and is in relative communication with the fifth lead hole. The ninth lead hole (29) penetrates the outer sealing shell (36) and is in relative communication with the sixth lead hole.

10. The lead-out socket according to claim 1, characterized in that: The first cavity (7) matches the shape of the first terminal (37), the second cavity (8) matches the shape of the second terminal (38), and the third cavity (9) matches the shape of the third terminal (39). The depths of the first cavity (7), the second cavity (8), and the third cavity (9) are equal, all being L+L1. ​​The heights of the first terminal (37), the second terminal (38), and the third terminal (39) are equal, all being L, where L1≥2mm.

11. The lead-out socket according to claim 1, characterized in that: The heights of the first partition (3), the second partition (4), the third partition (5), and the fourth partition (6) are all equal, and all are L2, with L2 ≥ 12 mm.

12. The lead-out socket according to claim 9, characterized in that: When the first terminal (18), the second terminal (19), and the third terminal (20) are included: The outer periphery of at least a portion of the structure of the first terminal (18) is further fitted with a first terminal sleeve (30), the outer periphery of at least a portion of the structure of the second terminal (19) is further fitted with a second terminal sleeve (31), the outer periphery of at least a portion of the structure of the third terminal (20) is further fitted with a third terminal sleeve (32), the outer periphery of at least a portion of the structure of the first terminal sleeve (30) is further fitted with a first terminal ceramic ring (33), the outer periphery of at least a portion of the structure of the second terminal sleeve (31) is further fitted with a second terminal ceramic ring (34), and the outer periphery of at least a portion of the structure of the third terminal sleeve (32) is further fitted with a third terminal ceramic ring (35). The inner diameters of the first annular post (24), the second annular post (25), and the third annular post (26) are all equal, all being ΦD1. The heights of the first annular post (24), the second annular post (25), and the third annular post (26) are all equal, all being H1. The outer diameters of the first terminal ceramic ring (33), the second terminal ceramic ring (34), and the third terminal ceramic ring (35) are all equal, all being ΦD2. The heights of the first terminal sheath (30), the second terminal sheath (31), and the third terminal sheath (32) are all equal, all being H2, and 0.05mm≤ΦD1-ΦD2≤0.2mm, H2-H1≤2mm.

13. A compressor, characterized in that: The lead-out socket includes any one of claims 1-12.

14. A vehicle, characterized in that: Includes the compressor as described in claim 13.

Images