High-sealing compact type automobile air conditioner pipeline assembly for new energy automobile
By adopting O-rings, composite sealing gaskets and limit support structures in the air-conditioning pipeline system of new energy vehicles, the problems of poor sealing and large volume are solved, and high sealing and compact design are achieved, reducing energy consumption and manufacturing costs.
Patent Information
- Application Number
- CN202422442371.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-10
AI Technical Summary
The existing air-conditioning pipeline systems of new energy vehicles have problems such as poor sealing, large volume and heavy weight, which affects the refrigeration/heating efficiency and increases the energy consumption and manufacturing costs of the whole vehicle.
A structure including a new energy vehicle lining plate, a first air conditioning assembly tube and a second air conditioning assembly tube is designed, and components such as O-rings, composite sealing gaskets, internal thread mounting rings and sealing springs are adopted. Through a multi-layer sealing and limiting support structure, a high sealing and compact design is achieved.
It realizes the high sealing effect of air conditioning pipelines, reduces space occupation and facilitates maintenance, and reduces the energy consumption and manufacturing costs of the whole vehicle.
Smart Images
Figure CN223131756U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy vehicles, in particular to a high-sealing and compact automobile air-conditioning pipeline assembly for new energy vehicles. Background Technique
[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as power sources (or use conventional vehicle fuels and adopt new in-vehicle power devices), integrating advanced technologies in vehicle power control and drive, and forming vehicles with advanced technical principles, new technologies, and new structures. The main characteristics and functions of such vehicles include:
[0003] Environmental protection and energy conservation: The greatest advantage of new energy vehicles lies in their environmental protection and energy conservation. Compared with traditional fuel vehicles, new energy vehicles can significantly reduce exhaust emissions, especially the emissions of harmful substances such as carbon dioxide, carbon monoxide, and nitrogen oxides, which has a positive effect on improving air quality and alleviating the greenhouse effect. Economic benefits: Although the purchase cost of new energy vehicles may be higher than that of traditional fuel vehicles of the same level, in the long run, their operating costs are lower. Promote technological progress: The development of new energy vehicles has promoted breakthroughs in key fields such as battery technology, motor technology, and electronic control technology, driving the technological progress and industrial upgrading of the entire automobile industry. Alleviate energy pressure: With the development of the global economy and the growth of the population, the dependence of traditional fuel vehicles on petroleum resources is increasing day by day, and the issue of energy security is becoming increasingly prominent.
[0004] However, in actual use of the existing technology, with the rapid development of the new energy vehicle industry, the requirements for the integration, high efficiency, and lightweight of various systems inside the vehicle are increasing day by day. The traditional automobile air-conditioning pipeline system has problems such as poor sealing, large volume, and heavy weight, which not only affect the refrigeration / heating efficiency of the air-conditioning system, but also increase the energy consumption and manufacturing cost of the whole vehicle. Content of the Utility Model
[0005] The purpose of the utility model is to provide a high-sealing and compact automobile air-conditioning pipeline assembly for new energy vehicles, so as to solve the problems raised in the above background technique that with the rapid development of the new energy vehicle industry, the requirements for the integration, high efficiency, and lightweight of various systems inside the vehicle are increasing day by day, and the traditional automobile air-conditioning pipeline system has problems such as poor sealing, large volume, and heavy weight, which not only affect the refrigeration / heating efficiency of the air-conditioning system, but also increase the energy consumption and manufacturing cost of the whole vehicle.
[0006] To achieve the above purpose, the utility model provides the following technical solutions: including the inner lining plate of a new energy vehicle, the first air-conditioning assembly pipe, and the second air-conditioning assembly pipe;
[0007] An arc-shaped hidden groove for accommodating and hiding the first air-conditioning assembly pipe and the second air-conditioning assembly pipe is provided on the inner side of the inner lining plate of the new energy vehicle. A lower opening groove is provided on the inner wall of the arc-shaped hidden groove. A first support spring is fixedly installed at the bottom of the lower opening groove. An arc-shaped support plate is fixedly installed at the upper end of the first support spring. Limiting rings are fixedly installed on the outer curved surfaces of the first air-conditioning assembly pipe and the second air-conditioning assembly pipe. Long limiting straight chutes and short limiting straight chutes are respectively provided on both sides of the upper inner wall of the arc-shaped hidden groove. A blocking strip for blocking and limiting the upper ends of the first air-conditioning assembly pipe and the second air-conditioning assembly pipe is fitted and movably connected to the inner wall of the long limiting straight chute. A second support spring is fixedly installed at the inner side end of the blocking strip. A straight opening groove is penetratingly provided at the upper end of the long limiting straight chute. A pushing block is fitted and movably connected to the inner wall of the straight opening groove.
[0008] An interface pipe is fixedly installed at the inner side end of the first air-conditioning assembly pipe. An O-shaped sealing ring is inlaid and fixedly installed on the outer curved surface of the interface pipe and the inner wall of the second air-conditioning assembly pipe. An externally threaded installation pipe is fixedly installed on the outer curved surface of the inner side of the first air-conditioning assembly pipe. An internally threaded installation ring is threadedly connected to the outer curved surface of the externally threaded installation pipe. A docking ring is rotatably connected to the side end of the internally threaded installation ring through a rotating shaft. A docking groove is fixedly installed on the outer curved surface of the inner side of the second air-conditioning assembly pipe. An installation hole is provided on the inner wall of the docking groove. A sealing spring is fixedly installed on the inner wall of the installation hole. A pushing ring is fixedly installed at the outer end of the sealing spring. A first composite sealing washer is fixedly installed on the outer side of the pushing ring. A second composite sealing washer is fixedly installed on the outer side of the docking ring.
[0009] Preferably, the inner lining plate of the new energy vehicle is fixedly installed inside the new energy vehicle. The first air-conditioning assembly pipe and the second air-conditioning assembly pipe are respectively adapted to an evaporator, a condenser, a compressor and an expansion valve for the air conditioner of the new energy vehicle.
[0010] Preferably, the first support springs are symmetrically distributed on both sides of the bottom of the lower opening groove, and the limiting rings are fitted and movably connected to the outer side of the arc-shaped support plate.
[0011] Preferably, the side end of the blocking strip away from the long limiting straight chute is fitted and movably connected to the inner wall of the short limiting straight chute. The second support spring is fixedly installed on the inner side wall of the long limiting straight chute. The pushing block is fixedly installed at the upper end of the blocking strip.
[0012] Preferably, the side end of the interface pipe away from the first air-conditioning assembly pipe is fitted and movably connected to the inner wall of the second air-conditioning assembly pipe. The number of the O-shaped sealing rings is several, and they are symmetrically distributed on the outer curved surface of the interface pipe and the inner wall of the second air-conditioning assembly pipe respectively.
[0013] Preferably, the docking ring is fitted and movably connected to the inner wall of the docking groove, and there are several mounting holes, which are symmetrically distributed in sequence along the inner side wall of the docking groove.
[0014] Preferably, the sealing spring is in a compressed state, and the first composite sealing washer and the second composite sealing washer are hermetically fitted to each other.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] 1. The present utility model performs a primary seal on the connection between the first air-conditioning assembly pipe and the second air-conditioning assembly pipe through an O-ring seal, and performs a secondary seal on the connection between the docking groove and the docking ring through the first composite sealing washer and the second composite sealing washer. Through the threaded connection between the inner-thread mounting ring and the outer curved surface of the outer-thread mounting pipe, the docking ring is kept locked and limited. At the same time, since the sealing spring is in a compressed state, the elastic potential energy generated by the compressed state of the sealing spring will always exert an outward thrust on the first composite sealing washer through the push ring, so that the first composite sealing washer always maintains a high-seal fit with the second composite sealing washer. The first air-conditioning assembly pipe and the second air-conditioning assembly pipe are hidden through the arc-shaped hidden groove to reduce the occupied space of the first air-conditioning assembly pipe and the second air-conditioning assembly pipe inside the new energy vehicle. Thus, while achieving a high-seal effect for the first air-conditioning assembly pipe and the second air-conditioning assembly pipe, the occupied space of the first air-conditioning assembly pipe and the second air-conditioning assembly pipe is reduced;
[0017] 2. When the first air-conditioning assembly pipe and the second air-conditioning assembly pipe are pressed inward, the present utility model will also push the arc-shaped support plate to move inward. When the arc-shaped support plate moves inward, it will push and compress the first support spring, and at the same time, make the first air-conditioning assembly pipe and the second air-conditioning assembly pipe move inward along with the arc-shaped support plate. When the first air-conditioning assembly pipe and the second air-conditioning assembly pipe move inward, the push block is used to push the blocking strip outward. When the blocking strip is pushed outward, it will move linearly outward along the inner wall of the long limiting straight chute. When the blocking strip moves linearly outward, it will move out of the inner wall of the short limiting straight chute. When the blocking strip moves out of the inner wall of the short limiting straight chute, the blocking and limiting of the first air-conditioning assembly pipe and the second air-conditioning assembly pipe will be released. When the blocking and limiting of the first air-conditioning assembly pipe and the second air-conditioning assembly pipe are released, the first air-conditioning assembly pipe and the second air-conditioning assembly pipe can be removed from the inside of the arc-shaped hidden groove for maintenance. Thus, while reducing the occupied space of the first air-conditioning assembly pipe and the second air-conditioning assembly pipe through the arc-shaped hidden groove, it is convenient to remove the first air-conditioning assembly pipe and the second air-conditioning assembly pipe from the inside of the arc-shaped hidden groove for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of a high-seal and compact automotive air-conditioning pipeline assembly for a new energy vehicle of the present utility model;
[0019] Figure 2 Schematic cross - section of the overall structure of a highly sealed and compact automotive air - conditioning pipeline assembly for a new - energy vehicle of the present utility model Figure 1 ;
[0020] Figure 3 Schematic cross - section of the overall structure of a highly sealed and compact automotive air - conditioning pipeline assembly for a new - energy vehicle of the present utility model Figure 2 ;
[0021] Figure 4 Schematic diagram of the partial structure of a highly sealed and compact automotive air - conditioning pipeline assembly for a new - energy vehicle of the present utility model.
[0022] In the figure: 1. Inner lining board of new - energy vehicle; 2. First air - conditioning assembly pipe; 3. Second air - conditioning assembly pipe; 4. Arc - shaped hidden groove; 5. Lower opening groove; 6. First support spring; 7. Arc - shaped support plate; 8. Limit ring; 9. Long limit straight sliding groove; 10. Short limit straight sliding groove; 11. Stop bar; 12. Second support spring; 13. Straight opening groove; 14. Push block; 15. Interface pipe; 16. O - ring seal; 17. External - thread installation pipe; 18. Internal - thread installation ring; 19. Docking ring; 20. Docking groove; 21. Installation hole; 22. Sealing spring; 23. Push ring; 24. First composite sealing washer; 25. Second composite sealing washer. Detailed implementation manners
[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution for a highly sealed and compact automotive air - conditioning pipeline assembly for a new - energy vehicle: including an inner lining board 1 of a new - energy vehicle, a first air - conditioning assembly pipe 2 and a second air - conditioning assembly pipe 3, and the inner lining board 1 of the new - energy vehicle is fixedly installed inside the new - energy vehicle, and the first air - conditioning assembly pipe 2 and the second air - conditioning assembly pipe 3 are respectively adapted to evaporators, condensers, compressors and expansion valves for the automotive air - conditioning of the new - energy vehicle;
[0025] On the inner side of the inner lining plate 1 of the new energy vehicle, an arc-shaped hidden groove 4 is provided for accommodating and hiding the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3. An opening groove 5 is provided on the inner wall of the arc-shaped hidden groove 4. A first support spring 6 is fixedly installed at the bottom of the opening groove 5, and the first support springs 6 are symmetrically distributed on both sides of the bottom of the opening groove 5. An arc-shaped support plate 7 is fixedly installed at the upper end of the first support spring 6. A limiting ring 8 is fixedly installed on the outer surface of the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3, and the limiting ring 8 is in fitting and movable connection with the outer side of the arc-shaped support plate 7, so that the arc-shaped support plate 7 cooperates with the limiting ring 8 to limit and support the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 respectively. On both sides of the upper inner wall of the arc-shaped hidden groove 4, a long limiting straight chute 9 and a short limiting straight chute 10 are respectively provided. A blocking strip 11 for blocking and limiting the upper ends of the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 is in fitting and movable connection with the inner wall of the long limiting straight chute 9, and one side end of the blocking strip 11 away from the long limiting straight chute 9 is in fitting and movable connection with the inner wall of the short limiting straight chute 10. A second support spring 12 is fixedly installed at the inner side end of the blocking strip 11, and the second support spring 12 is fixedly installed on the inner side wall of the long limiting straight chute 9, so that the second support spring 12 elastically supports the blocking strip 11. A straight opening groove 13 is provided through the upper end of the long limiting straight chute 9. A pushing block 14 is in fitting and movable connection with the inner wall of the straight opening groove 13, and the pushing block 14 is fixedly installed at the upper end of the blocking strip 11;
[0026] An interface pipe 15 is fixedly installed at the inner side end of the first air-conditioning assembly pipe 2, and one side end of the interface pipe 15 away from the first air-conditioning assembly pipe 2 is in fitting and movable connection with the inner wall of the second air-conditioning assembly pipe 3. An O-shaped sealing ring 16 is fixedly installed by inlaying on the outer surface of the interface pipe 15 and the inner wall of the second air-conditioning assembly pipe 3, and the number of the O-shaped sealing rings 16 is several, which are symmetrically distributed on the outer surface of the interface pipe 15 and the inner wall of the second air-conditioning assembly pipe 3 respectively, so that the O-shaped sealing ring 16 seals the joint between the outer surface of the interface pipe 15 and the inner wall of the second air-conditioning assembly pipe 3. An externally threaded installation pipe 17 is fixedly installed on the outer surface of the inner side of the first air-conditioning assembly pipe 2. An internally threaded installation ring 18 is threadedly connected to the outer surface of the externally threaded installation pipe 17. One side end of the internally threaded installation ring 18 is rotationally connected to a docking ring 19 through a rotating shaft. A docking groove 20 is fixedly installed on the outer surface of the inner side of the second air-conditioning assembly pipe 3, and the docking ring 19 is in fitting and movable connection with the inner wall of the docking groove 20. A mounting hole 21 is provided on the inner side wall of the docking groove 20, and the number of the mounting holes 21 is several, which are symmetrically distributed in sequence on the inner side wall of the docking groove 20. A sealing spring 22 is fixedly installed on the inner side wall of the mounting hole 21, and the sealing spring 22 is in a compressed state. A pushing ring 23 is fixedly installed at the outer end of the sealing spring 22. A first composite sealing gasket 24 is fixedly installed on the outer side of the pushing ring 23. A second composite sealing gasket 25 is fixedly installed on the outer side of the docking ring 19, and the first composite sealing gasket 24 and the second composite sealing gasket 25 are hermetically fitted to each other.
[0027] Working principle: During use, the utility model conducts a primary seal on the connection between the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 through the O-ring seal 16, conducts a secondary seal on the connection between the docking groove 20 and the docking ring 19 through the first composite sealing washer 24 and the second composite sealing washer 25, and through the threaded connection between the internal thread mounting ring 18 and the outer curved surface of the external thread mounting pipe 17, the docking ring 19 is kept locked and limited. At the same time, since the sealing spring 22 remains in a compressed state, the elastic potential energy generated by the compressed state of the sealing spring 22 will always exert an outward thrust on the first composite sealing washer 24 through the push ring 23, so that the first composite sealing washer 24 always maintains a high-sealing fit with the second composite sealing washer 25. The first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 are hidden through the arc-shaped hidden groove 4 to reduce the occupied space of the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 inside the new energy vehicle. Thus, while achieving a high-sealing effect for the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3, the occupied space of the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 is reduced;
[0028] Meanwhile, the arc-shaped support plate 7 and the limit ring 8 are respectively used to limit and support the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3. When the arc-shaped support plate 7 and the limit ring 8 respectively limit and support the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3, the upper ends of the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 are blocked and limited by the blocking strip 11, so that the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 are kept stable inside the arc-shaped hidden groove 4. When it is necessary to move the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 out of the arc-shaped hidden groove 4 for maintenance, the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 are pressed inward. When the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 are pressed inward, it will push the arc-shaped support plate 7 to move inward. When the arc-shaped support plate 7 moves inward, it will push and compress the first support spring 6 while making the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 move inward following the arc-shaped support plate 7. When the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 move inward, the push block 14 is used to push the blocking strip 11 outward. When the blocking strip 11 is pushed outward, it will move linearly outward along the inner wall of the long limit straight chute 9. When the blocking strip 11 moves linearly outward, it will move out of the inner wall of the short limit straight chute 10. When the blocking strip 11 moves out of the inner wall of the short limit straight chute 10, the blocking and limiting of the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 will be released. When the blocking and limiting of the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 are released, the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 can be moved out of the arc-shaped hidden groove 4 for maintenance. Thus, while reducing the space occupied by the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 through the arc-shaped hidden groove 4, it is convenient to move the first air-conditioning assembly pipe 2 and the second air-conditioning assembly pipe 3 out of the arc-shaped hidden groove 4 for maintenance.
[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A highly sealed and compact air-conditioning pipeline assembly for new energy vehicles, characterized in that: It includes the inner lining plate (1) of a new energy vehicle, the first air-conditioning assembly pipe (2), and the second air-conditioning assembly pipe (3). An arc-shaped hidden groove (4) for accommodating and hiding the first air-conditioning assembly pipe (2) and the second air-conditioning assembly pipe (3) is provided on the inner side of the inner lining plate (1) of the new energy vehicle. A lower opening groove (5) is provided on the inner wall of the arc-shaped hidden groove (4). A first support spring (6) is fixedly installed at the bottom of the lower opening groove (5). An arc-shaped support plate (7) is fixedly installed at the upper end of the first support spring (6). Limiting rings (8) are fixedly installed on the outer curved surfaces of the first air-conditioning assembly pipe (2) and the second air-conditioning assembly pipe (3). Long limiting straight chutes (9) and short limiting straight chutes (10) are respectively provided on both sides of the upper inner wall of the arc-shaped hidden groove (4). A blocking strip (11) for blocking and limiting the upper ends of the first air-conditioning assembly pipe (2) and the second air-conditioning assembly pipe (3) is fitted and movably connected to the inner wall of the long limiting straight chute (9). A second support spring (12) is fixedly installed at the inner side end of the blocking strip (11). A straight opening groove (13) is penetrated and provided at the upper end of the long limiting straight chute (9). A pushing block (14) is fitted and movably connected to the inner wall of the straight opening groove (13). An interface pipe (15) is fixedly installed at the inner side end of the first air-conditioning assembly pipe (2). An O-shaped sealing ring (16) is fixedly installed by inlaying on the outer curved surface of the interface pipe (15) and the inner wall of the second air-conditioning assembly pipe (3). An externally threaded installation pipe (17) is fixedly installed on the outer curved surface of the inner side of the first air-conditioning assembly pipe (2). An internally threaded installation ring (18) is threadedly connected to the outer curved surface of the externally threaded installation pipe (17). A docking ring (19) is rotatably connected to the side end of the internally threaded installation ring (18) through a rotating shaft. A docking groove (20) is fixedly installed on the outer curved surface of the inner side of the second air-conditioning assembly pipe (3). An installation hole (21) is provided on the inner wall of the docking groove (20). A sealing spring (22) is fixedly installed on the inner wall of the installation hole (21). A pushing ring (23) is fixedly installed at the outer end of the sealing spring (22). A first composite sealing washer (24) is fixedly installed on the outer side of the pushing ring (23). A second composite sealing washer (25) is fixedly installed on the outer side of the docking ring (19).
2. The high-sealing and compact automotive air-conditioning pipeline assembly for a new energy vehicle according to claim 1, characterized in that: The inner lining plate (1) of the new energy vehicle is fixedly installed inside the new energy vehicle. The first air-conditioning assembly pipe (2) and the second air-conditioning assembly pipe (3) are respectively adapted to an evaporator, a condenser, a compressor, and an expansion valve for the air conditioner of the new energy vehicle.
3. The high-sealing and compact air-conditioning pipeline assembly for new energy vehicles according to claim 2, wherein: The first support springs (6) are symmetrically distributed on both sides of the bottom of the lower opening groove (5). The limiting rings (8) are fitted and movably connected to the outer side of the arc-shaped support plate (7).
4. A highly sealed and compact air conditioning pipeline assembly for a new energy vehicle according to claim 3, characterized in that: One side end of the blocking strip (11) away from the long limiting straight chute (9) is fitted and movably connected to the inner wall of the short limiting straight chute (10). The second support spring (12) is fixedly installed on the inner side wall of the long limiting straight chute (9). The pushing block (14) is fixedly installed at the upper end of the blocking strip (11).
5. The high-sealing and compact automotive air-conditioning pipeline assembly for new energy vehicles according to claim 4, characterized in that: One end of the interface pipe (15) away from the first air-conditioning assembly pipe (2) is fitted and movably connected to the inner wall of the second air-conditioning assembly pipe (3). There are several O-ring seals (16), which are symmetrically distributed on the outer curved surface of the interface pipe (15) and the inner wall of the second air-conditioning assembly pipe (3).
6. The high-sealing and compact automotive air-conditioning pipeline assembly for new energy vehicles according to claim 5, wherein: The docking ring (19) is fitted and movably connected to the inner wall of the docking groove (20). There are several mounting holes (21), which are symmetrically distributed in sequence on the inner wall of the docking groove (20).
7. The high-sealing and compact air-conditioning pipeline assembly for new energy vehicles according to claim 6, characterized in that: The sealing spring (22) is in a compressed state, and the first composite sealing washer (24) and the second composite sealing washer (25) are hermetically fitted to each other.