Connector assembly and vehicle

Abstract

The application discloses a connector assembly and a vehicle. The connector assembly comprises a connector and a busbar. The connector comprises a housing, a terminal, a first sealing member and a fixing assembly. The housing has a cavity, the terminal is at least partially accommodated in the cavity, and the fixing assembly is connected with the housing and used for limiting the position of the terminal and / or the first sealing member. The busbar is in a flat structure, is at least partially accommodated in the cavity and is electrically connected with the terminal, and the first sealing member is used for sealing the gap between the busbar and the housing. The connector assembly of the application not only reduces the space occupied by the busbar, meets the requirement of higher and higher compactness and integration of the whole vehicle, but also enables the flat busbar to more closely and accurately match various wiring angles, is better arranged along the structure of the vehicle, reduces the bending and twisting in the wiring process and improves the neatness and rationality of the wiring.

Description

Technical Field

[0001] This application relates to the field of connector technology, and more specifically to a connector assembly and a vehicle. Background Technology

[0002] In a vehicle's electrical system, connector assemblies are core components connecting critical parts such as batteries, motors, and inverters, and their performance directly impacts the vehicle's safety and energy efficiency. In existing technologies, connectors are used with round wires. However, as vehicles become increasingly integrated and energy-density, their drive power and current increase accordingly, necessitating larger wire diameters. This increase in wire diameter leads to a larger space occupied by the wires within the vehicle. Given the limited interior space, this results in confined assembly space, making wire placement difficult and failing to meet the increasingly compact design requirements of vehicles. Utility Model Content

[0003] This application provides a connector assembly and a vehicle that not only reduces the space occupied by the busbar, meeting the increasingly compact and integrated requirements of the vehicle, but also allows the flat busbar to fit more closely and precisely at various wiring angles, enabling better arrangement along the vehicle structure, reducing bending and twisting during the wiring process, and improving the neatness and rationality of the wiring.

[0004] This application provides a connector assembly, including:

[0005] A connector, comprising a housing, terminals, a first seal, and a retaining assembly, the housing having a cavity, the terminals being at least partially received in the cavity, and the retaining assembly being connected to the housing and used to restrict the position of the terminals and / or the first seal;

[0006] The busbar has a flat structure and is at least partially housed in the cavity and electrically connected to the terminals. The first seal is used to seal the gap between the busbar and the housing.

[0007] This application also provides a vehicle including a connector assembly as described in any one of the above claims, the connector assembly being used to connect the vehicle's electric drive system and power distribution unit.

[0008] Beneficial Effects: Compared with the prior art, the connector assembly and vehicle provided in this application include a connector and a busbar. Compared with circular wires, the busbar in this application has a flat structure. This not only reduces the space occupied by the busbar, meeting the increasingly compact and integrated requirements of the vehicle, but also allows the flat busbar to fit more closely and precisely at various wiring angles, enabling better arrangement along the vehicle structure, reducing bending and twisting during wiring, and improving the neatness and rationality of the wiring. Simultaneously, the use of a first sealing element effectively improves the sealing performance of the connector assembly, ensuring the reliability of the electrical connection. The fixing component enhances the connection stability between the terminals and the busbar and the housing, reducing connection loosening problems caused by vibration and other factors. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is an exploded view of one embodiment of the connector assembly of this application;

[0011] Figure 2 This is an exploded view of another embodiment of the connector assembly of this application;

[0012] Figure 3 This is a three-dimensional structural schematic diagram of one embodiment of the connector assembly of this application;

[0013] Figure 4 This is a three-dimensional structural schematic diagram of another embodiment of the connector assembly of this application;

[0014] Figure 5 This is a planar structural schematic diagram of one embodiment of the connector assembly of this application;

[0015] Figure 6 It is along Figure 5 Schematic diagram of the cross section of line AA in the middle;

[0016] Figure 7 yes Figure 6 A magnified view of a portion of point A in the middle;

[0017] Figure 8 This is a schematic planar structure diagram of another embodiment of the connector assembly of this application;

[0018] Figure 9 It is along Figure 8Schematic diagram of the cross section of the middle BB line;

[0019] Figure 10 yes Figure 9 A magnified view of a portion of point B in the middle.

[0020] Explanation of reference numerals in the attached drawings: 1. Connector; 11. Housing; 111. Cavity; 112. First step; 113. First fixing part; 114. Mounting panel; 1141. Mounting hole; 115. Sealing groove; 12. Terminal; 121. Fixing hole; 122. First limiting part; 13. First seal; 14. Fixing assembly; 141. Insulating housing; 1411. First insulating housing; 1412. Second insulating housing; 1413. Opening; 141 4. Second limiting part; 1415. First protrusion; 1416. Second protrusion; 14161. Guide groove; 1417. Second step; 1418. First snap-fit ​​structure; 142. Tail clip; 1421. First tail clip; 1422. Second tail clip; 1423. Second fixing part; 1424. Second snap-fit ​​structure; 15. Second sealing element; 2. Busbar; 21. Conductor part; 22. Insulation layer; 23. First busbar; 24. Second busbar. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. In this application, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to up, down, left, and right in the actual use or working state of the device, specifically the drawing directions in the accompanying drawings.

[0022] In this application, unless otherwise expressly specified and limited, the terms "connected," "linked," "stacked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] This application provides a connector assembly and a vehicle, which are described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application. Furthermore, in the following embodiments, the descriptions of each embodiment have their own emphasis; parts not described in detail in a certain embodiment can be referred to in the relevant descriptions of other embodiments.

[0024] Reference Figure 1 and Figure 2 One embodiment of this application provides a connector assembly, including a connector 1 and a busbar 2. The connector 1 is electrically connected to the busbar 2 and can be disposed at an end of the busbar 2. The busbar 2 may include a first busbar 23 and a second busbar 24 stacked on top of each other, with connector 1 connected to both ends of the first busbar 23 and the second busbar 24, respectively. In each connector 1, the end of the first busbar 23 and the end of the second busbar 24 are accommodated in the same cavity 111 and electrically connected to a corresponding terminal 12. In this embodiment, the connector assembly may include two busbars 2 and two connectors 1, with one end of each busbar 2 electrically connected to one connector 1 and the other end of each busbar 2 electrically connected to the other connector 1.

[0025] Please refer to the details as well. Figure 3 and Figure 4 The connector 1 includes a housing 11, terminals 12, a first seal 13, and a fixing assembly 14. The housing 11 has a cavity 111 extending through both ends of the housing 11. The housing 11 can be made of metal to ensure sufficient structural strength, thereby extending its service life. The terminals 12 are made of metal and are at least partially housed within the cavity 111. In this application, a connector 1 has two terminals 12 spaced apart from each other. One end of each terminal 12 is connected to a busbar 2, and the other end protrudes from the cavity 111 of the housing 11 for connection to other devices (not shown), such as electric drive systems, power distribution units, etc. The fixing assembly 14 is connected to the housing 11 and restricts the position of the terminals 12 and / or the first seal 13, thereby ensuring the stability of the terminal 12 position and the sealing effect of the first seal 13. The fixing assembly 14 enhances the connection stability between the terminals 12 and the busbar 2 and the housing 11, reducing connection loosening problems caused by vibration and other factors.

[0026] The first sealing element 13 is generally annular and is fitted around the outer periphery of the busbar 2. Preferably, the first sealing element 13 fits tightly against the outer periphery of the busbar 2. The first sealing element 13 seals the gap between the busbar 2 and the housing 11. The first sealing element 13 improves the sealing performance of the connector assembly, thereby enhancing its waterproof performance and ensuring the reliability of the electrical connection. The first sealing element 13 can be made of an elastic material, such as silicone, to improve its sealing effect.

[0027] As an example, refer to Figures 5 to 7 The first seal 13 is at least partially housed within the cavity 111, positioning it between the busbar 2 and the housing 11. The thickness of the first seal 13 is preferably greater than the gap between the sealing busbar 2 and the housing 11, allowing for an interference fit between the first seal 13 and both the sealing busbar 2 and the housing 11, thereby further improving the sealing effect of the first seal 13. A first step 112 is provided within the cavity 111 of the housing 11. The first step 112 may be annular or a portion of annular. The outer diameter of the first seal 13 is larger than the inner diameter of the first step 112, and one end of the first seal 13 abuts against the first step 112 to ensure the stability of the position of the first seal 13. In some embodiments, the first seal 13 may also be located outside the cavity 111 of the housing 11, with one end of the first seal 13 in close contact with one end of the housing 11, similarly sealing the gap between the busbar 2 and the housing 11 to achieve the waterproof function of the connector assembly.

[0028] Reference Figure 1 and Figure 2 The outer casing 11 may be provided with mounting holes 1141 for fixing the outer casing 11 to other devices. In this embodiment, the outer casing 11 may be provided with a mounting panel 114, which may be integrally formed with the outer casing 11. The mounting holes 1141 may be provided on the mounting panel 114, allowing the connector 1 to be installed on other devices through the mounting holes 1141, for example, by screwing the connector 1 onto other devices through the mounting holes 1141. The number of mounting holes 1141 may be one or more. When there are multiple mounting holes 1141, they are evenly distributed on the mounting panel 114. For example, when there are two mounting holes 1141, they are arranged diagonally.

[0029] Reference Figure 1 and Figure 3A second seal 15 is provided at the end of the housing 11 facing away from the busbar 2. The second seal 15 can be located on the side of the mounting panel 114 facing other devices. When the connector 1 is installed on other devices, the second seal 15 is located between the housing 11 and other devices. The second seal 15 ensures a sealed connection between the connector 1 and other devices. A sealing groove 115 is provided at the end of the housing 11 facing away from the busbar 2. The second seal 15 can be located in the sealing groove 115. The sealing groove 115 can restrict the second seal 15 to ensure the stability of the position of the second seal 15. The second seal 15 can be made of an elastic material, such as silicone, to improve the sealing effect of the second seal 15.

[0030] Reference Figure 1 and Figure 2 The busbar 2 has a flat structure and is at least partially housed within the cavity 111 and electrically connected to the terminal 12. The busbar 2 may include a conductor portion 21 and an insulating layer 22, with the insulating layer 22 covering the outside of the conductor portion 21. The conductor portion 21 of the busbar 2 is electrically connected to the terminal 12. The conductor portion 21 of the busbar 2 and the terminal 12 can be connected by welding, for example, by ultrasonic welding or resistance welding. The end of the terminal 12 connected to the busbar 2 has a flat structure, which not only facilitates welding, improving welding efficiency and quality, but also enhances the stability of the connection between the busbar 2 and the terminal 12, thereby ensuring the stability of the connector assembly performance.

[0031] Compared to round conductors, the flat busbar 2 experiences greater stress, which is transmitted to the terminal 12. If a plug-in connection is used, excessive stress can affect the contact performance of the terminal 12 with other devices. A fixing hole 121 is provided at the end of the terminal 12 furthest from the busbar 2. When the connector assembly is connected to other devices, the fixing hole 121 is used to secure the terminal 12 to the other devices, for example, by using bolts to fix the terminal 12 to the other devices, ensuring the stability and reliability of the electrical connection between the terminal 12 and other devices.

[0032] In this application, a flat busbar 2 replaces the traditional round conductor. Compared to round conductors, this not only reduces the space occupied by the busbar 2, meeting the increasingly stringent requirements of vehicle compactness and integration, but also allows the flat busbar 2 to fit more closely and precisely at various wiring angles, enabling better arrangement along the vehicle's structure, reducing bends and twists during wiring, and improving the neatness and rationality of the wiring. The flat busbar 2 has a larger surface area than round conductors, resulting in faster heat dissipation. The flat busbar 2 also facilitates more even heat dissipation, avoiding localized overheating, thereby improving the safety and stability of the busbar 2, reducing insulation aging and performance degradation caused by overheating, and extending the service life of the busbar 2. The flat busbar 2 allows for more uniform current distribution. A more uniform current distribution on its surface reduces the resistance of the busbar 2. In high-frequency current transmission, the skin effect of round conductors is more pronounced; the flat busbar 2 reduces the skin effect, thus improving energy transmission efficiency. Meanwhile, while meeting the same electrical performance requirements, the flat busbar 2 has a smaller cross-sectional area and is relatively lighter in weight, which helps to achieve the lightweight design of the whole vehicle, thereby improving the vehicle's energy efficiency and handling performance.

[0033] In one specific implementation, refer to Figure 1 and Figure 2 The fixing component 14 may include an insulating housing 141, which may be made of plastic. The insulating housing 141 is fitted around the outer periphery of the terminal 12 and has through holes for the terminal 12 to pass through. The number of through holes corresponds to the number of terminals 12. In this embodiment, there are two through holes, which are spaced apart from each other to ensure that the two terminals 12 are electrically isolated. The insulating housing 141 is located at the end of the outer shell 11 facing away from the busbar 2. The insulating housing 141 is at least partially housed in the cavity 111 and connected to the outer shell 11 to improve the stability of the connection between the insulating housing 141 and the outer shell 11.

[0034] Reference Figure 1The insulating housing 141 is provided with an opening 1413. The number of openings 1413 can be one or more. The opening 1413 communicates with the cavity 111 of the outer shell 11. The opening 1413 is used to add filler to the cavity 111. The filler is, for example, sealant. The filler is used to fill the gap between the insulating housing 141 and the outer shell 11 and / or the gap between the insulating housing 141 and the terminal 12. The filler not only has a sealing function, further improving the sealing performance of the connector 1, but also has a fixing function, which can bond the insulating housing 141 and the outer shell 11 together and the insulating housing 141 and the terminal 12 together, further improving the connection strength between the insulating housing 141 and the outer shell 11 and the connection strength between the insulating housing 141 and the terminal 12. In some embodiments, the filler can fill the cavity 111 of the housing 11, that is, the filler can also improve the sealing performance and connection strength between the busbar 2 and the housing 11, which is equivalent to bonding the housing 11, the insulating shell 141, the terminal 12 and the busbar 2 into a whole, thereby improving the overall sealing performance and connection strength of the connection assembly and ensuring the stability of the position of each component. In other embodiments, the opening 1413 can also be provided in the housing 11, as long as it allows the filler to be added to the cavity 111.

[0035] Please refer to the above as well. Figures 8 to 10 Terminal 12 is provided with a first limiting part 122, which is, for example, a groove. The first limiting part 122 can be provided on the side or side of terminal 12 perpendicular to the insertion direction. The insulating housing 141 is provided with a second limiting part 1414 corresponding to the first limiting part 122, which is, for example, a protrusion. When connector 1 is inserted into or removed from other devices, terminal 12 is subjected to a force in the insertion direction. The first limiting part 122 and the second limiting part 1414 cooperate with each other, that is, the protrusion engages with the groove. The insulating housing 141 can apply a force in the opposite direction to terminal 12 to limit the movement of terminal 12 in the insertion direction of connector 1, thereby ensuring the stability of the position of terminal 12 and the stability of the connection between terminal 12 and busbar 2. Each terminal 12 is provided with one or more first limiting parts 122, and the number of second limiting parts 1414 is the same as the number of first limiting parts 122. As an example, each terminal 12 has two first limiting portions 122, which are preferably arranged symmetrically. This makes the terminal 12 more stable under force and can further improve the stability of the terminal 12 position.

[0036] Reference Figure 10The insulating housing 141 may be provided with a first protrusion 1415. The first protrusion 1415 is preferably integrally formed with the insulating housing 141. The first protrusion 1415 is interference-fitted with the cavity 111 of the outer shell 11. The first protrusion 1415 is elastic and is used to abut against the inner wall of the cavity 111 so that the insulating housing 141 and the outer shell 11 are fixedly connected.

[0037] Reference Figure 10 The insulating housing 141 may also be provided with a second protrusion 1416, which is preferably integrally formed with the insulating housing 141. The second protrusion 1416 protrudes from the cavity 111 of the outer shell 11 and abuts against the end face of the outer shell 11 to limit the position of the insulating housing 141 inserted into the cavity 111 of the outer shell 11. A second seal 15 is disposed between the mounting panel 114 and the second protrusion 1416. The outer diameter of the second protrusion 1416 is larger than the inner diameter of the second seal 15. The second seal 15 is confined between the mounting panel 114 and the second protrusion 1416 to prevent the second seal 15 from falling off the outer shell 11.

[0038] Reference Figure 10 The second protrusion 1416 may be provided with a guide groove 14161 on the side facing the outer shell 11. The end face of the outer shell 11 may be engaged with the guide groove 14161. This not only facilitates the installation of the insulating shell 141 onto the outer shell 11, but also improves the coaxiality between the insulating shell 141 and the outer shell 11.

[0039] Reference Figure 1 and Figure 2The insulating housing 141 may include a first insulating housing 1411 and a second insulating housing 1412. The first insulating housing 1411 and the second insulating housing 1412 are separate structures. Preferably, the first insulating housing 1411 and the second insulating housing 1412 adopt a two-lobed symmetrical design. The first insulating housing 1411 and the second insulating housing 1412 are connected by a first snap-fit ​​structure 1418. As an example, the first snap-fit ​​structure 1418 may include a snap and a claw. The first insulating housing 1411 may be provided with a snap and / or a claw, and the second insulating housing 1412 may be correspondingly provided with a snap and / or a claw. Both the first insulating housing 1411 and the second insulating housing 1412 may be provided with a second limiting part 1414. When the first insulating housing 1411 and the second insulating housing 1412 are engaged with each other, the first insulating housing 1411 and the second insulating housing 1412 can apply compressive force to the terminal 12 from at least two directions, ensuring that the first limiting part 122 and the second limiting part 1414 can fit tightly, eliminating the assembly gap between the insulating housing 141 and the terminal 12, and preventing the terminal 12 from shaking. At the same time, when the first insulating housing 1411 and the second insulating housing 1412 are engaged with each other, the second protrusion 1416 can also apply radial pressure to the end of the outer shell 11, thereby further improving the stability of the connection between the insulating housing 141 and the outer shell 11.

[0040] Reference Figure 1 and Figure 7 A portion of the side surface of the busbar 2 overlaps with a portion of the side surface of the terminal 12 and is fixedly connected. A second step 1417 is provided inside the insulating housing 141. The second step 1417 can be annular or a portion of an annular shape. One end of the busbar 2 abuts against the second step 1417. Since the conductor portion 21 of the busbar 2 has a certain thickness, the end face of the conductor portion 21 of the busbar 2 abuts against the second step 1417, which can restrict the position of the busbar 2, thereby further ensuring the stability of the positions of the busbar 2 and the terminal 12. In this embodiment, the two terminals 12 are arranged opposite each other, and the two busbars 2 are respectively arranged on the opposite sides of the two terminals 12, that is, the two busbars 2 are respectively arranged on the outside of the two terminals 12.

[0041] The width of the portion where busbar 2 is welded to terminal 12 is the same as or approximately the same as the width of terminal 12. This ensures a more uniform stress distribution, preventing stress concentration due to excessively narrow areas. Furthermore, the uniform width structure ensures a continuous bending moment distribution at the terminal 12 connection during busbar 2 vibration and bending, improving resistance to bending fatigue and reducing the risk of weld breakage or loosening. This guarantees the reliability of the connection between busbar 2 and terminal 12. The uniform cross-sectional area of ​​the current flow path also avoids current density concentration caused by abrupt changes in cross-section, resulting in a more uniform current distribution, reducing localized overheating, lowering resistance, and improving power transmission efficiency. Simultaneously, the uniform weld width facilitates standardized welding processes and parameters, effectively ensuring consistent welding quality, reducing issues such as incomplete welds and detachment caused by fluctuations in welding parameters, lowering the defect rate, and improving production efficiency and product reliability.

[0042] Reference Figure 1 and Figure 2 The fixing component 14 may further include a tail clip 142, which is fitted onto both the outer periphery of the busbar 2 and the outer periphery of the housing 11. The housing 11 is provided with a first fixing part 113, which may be a protrusion. The tail clip 142 is provided with a second fixing part 1423 corresponding to the first fixing part 113, which may be a groove. The first fixing part 113 and the second fixing part 1423 cooperate with each other, i.e., the protrusion engages with the groove, so that the tail clip 142 is fixedly connected to the housing 11. The tail clip 142 may be located on the outside of the first seal 13. The tail clip 142 can ensure the stability of the position of the first seal 13 and prevent the first seal 13 from falling off the housing 11.

[0043] Reference Figure 1 and Figure 2The tail clip 142 may include a first tail clip 1421 and a second tail clip 1422. The first tail clip 1421 and the second tail clip 1422 are separate structures. Preferably, the first tail clip 1421 and the second tail clip 1422 adopt a symmetrical two-part design. The first tail clip 1421 and the second tail clip 1422 are connected by a second snap-fit ​​structure 1424. As an example, the second snap-fit ​​structure 1424 may include a snap and a claw. The first tail clip 1421 may be provided with a snap and / or a claw, and the second tail clip 1422 may be correspondingly provided with a snap and / or a claw. Both the first tail clip 1421 and the second tail clip 1422 can be provided with a second fixing part 1423. When the first tail clip 1421 and the second tail clip 1422 are engaged with each other, the first tail clip 1421 and the second tail clip 1422 can apply compressive force to the outer casing 11 from at least two directions, ensuring that the first fixing part 113 and the second fixing part 1423 can fit tightly together, thus eliminating the assembly gap between the tail clip 142 and the outer casing 11. At the same time, when the first tail clip 1421 and the second tail clip 1422 are engaged with each other, the first tail clip 1421 and the second tail clip 1422 can apply compressive force to the busbar 2 from at least two directions, which can fix the busbar 2, prevent the busbar 2 from shaking or shifting, and further ensure the stability of the connection between the busbar 2 and the terminal 12.

[0044] The number of second snap-fit ​​structures 1424 is at least two. In this embodiment, the number of second snap-fit ​​structures 1424 can be four. Two of the second snap-fit ​​structures 1424 are used to strengthen the squeezing force of the tail clip 142 on the outer shell 11, and the other two second snap-fit ​​structures 1424 are used to strengthen the squeezing force of the tail clip 142 on the busbar 2.

[0045] An embodiment of this application also provides a vehicle including a connector assembly as described above, the connector assembly being used to connect the vehicle's electric drive system (not shown) and power distribution unit (not shown), i.e., one connector 1 is electrically connected to the electric drive system and the other connector 1 is electrically connected to the power distribution unit.

[0046] The connector assembly and vehicle provided in this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A connector assembly, characterized in that, include: A connector (1) comprising a housing (11), a terminal (12), a first seal (13), and a fixing assembly (14), wherein the housing (11) has a cavity (111), the terminal (12) is at least partially accommodated in the cavity (111), and the fixing assembly (14) is connected to the housing (11) and is used to restrict the position of the terminal (12) and / or the first seal (13); Busbar (2), the busbar (2) has a flat structure, the busbar (2) is at least partially housed in the cavity (111) and electrically connected to the terminal (12), and the first seal (13) is used to seal the gap between the busbar (2) and the outer shell (11).

2. The connector assembly according to claim 1, characterized in that, The end of the terminal (12) connected to the busbar (2) is a flat plate structure; The terminal (12) is provided with a fixing hole (121) at one end away from the busbar (2), and the fixing hole (121) is used to fix the terminal (12) to other equipment.

3. The connector assembly according to claim 1, characterized in that, The first sealing member (13) is at least partially accommodated in the cavity (111) and sleeved on the busbar (2) so that the first sealing member (13) is disposed between the busbar (2) and the outer shell (11). A first step (112) is provided in the cavity (111), and one end of the first sealing member (13) abuts against the first step (112).

4. The connector assembly according to claim 1, characterized in that, The fixing component (14) includes an insulating housing (141) which is sleeved on the outer periphery of the terminal (12). The insulating housing (141) is disposed at one end of the outer shell (11) facing away from the busbar (2). The insulating housing (141) is at least partially accommodated in the cavity (111) and connected to the outer shell (11).

5. The connector assembly according to claim 4, characterized in that, The insulating housing (141) is provided with an opening (1413) that communicates with the cavity (111). The opening (1413) is used to add filler to the cavity (111). The filler is used to fill the gap between the insulating housing (141) and the outer shell (11) and / or the gap between the insulating housing (141) and the terminal (12).

6. The connector assembly according to claim 4, characterized in that, The terminal (12) is provided with a first limiting part (122), and the insulating housing (141) is provided with a second limiting part (1414) corresponding to the first limiting part (122). The first limiting part (122) and the second limiting part (1414) cooperate with each other to restrict the terminal (12) from moving in the insertion direction of the connector (1).

7. The connector assembly according to claim 4, characterized in that, The insulating housing (141) is provided with a first protrusion (1415), the first protrusion (1415) being elastic, the first protrusion (1415) being used to abut against the inner wall of the cavity (111), so that the insulating housing (141) is fixedly connected to the outer shell (11); and / or, The insulating housing (141) is provided with a second protrusion (1416), which is used to abut against the end face of the outer shell (11).

8. The connector assembly according to claim 4, characterized in that, The insulating housing (141) includes a first insulating housing (1411) and a second insulating housing (1412), and the first insulating housing (1411) and the second insulating housing (1412) are connected by a first snap-fit ​​structure (1418).

9. The connector assembly according to claim 4, characterized in that, A portion of the side of the busbar (2) overlaps with a portion of the side of the terminal (12) and is fixedly connected. A second step (1417) is provided inside the insulating housing (141), and one end of the busbar (2) abuts against the second step (1417).

10. The connector assembly according to claim 1, characterized in that, The fixing component (14) includes a tail clip (142), which is sleeved on the outer periphery of the busbar (2) and the outer periphery of the outer shell (11). The outer shell (11) is provided with a first fixing part (113), and the tail clip (142) is provided with a second fixing part (1423) corresponding to the first fixing part (113). The first fixing part (113) and the second fixing part (1423) cooperate with each other to fix the tail clip (142) to the outer shell (11).

11. The connector assembly according to claim 10, characterized in that, The tail clip (142) includes a first tail clip (1421) and a second tail clip (1422), and the first tail clip (1421) and the second tail clip (1422) are connected by a second snap-fit ​​structure (1424).

12. The connector assembly according to claim 1, characterized in that, The housing (11) is provided with mounting holes (1141) for fixing the housing (11) to other equipment; and / or, A second seal (15) is provided at one end of the housing (11) facing away from the busbar (2). When the connector (1) is installed on other equipment, the second seal (15) is located between the housing (11) and other equipment.

13. The connector assembly according to claim 1, characterized in that, The busbar (2) and the terminal (12) are connected by ultrasonic welding or resistance welding.

14. The connector assembly according to claim 1, characterized in that, The busbar (2) includes a first busbar (23) and a second busbar (24) that are stacked on each other, and the two ends of the first busbar (23) and the second busbar (24) are respectively connected to the connector (1); In each of the connectors (1), the end of the first busbar (23) and the end of the second busbar (24) are housed in the same cavity (111) and electrically connected to the corresponding terminal (12).

15. A vehicle, characterized in that, Includes a connector assembly as described in any one of claims 1-14, the connector assembly being used to connect the electric drive system and the power distribution unit of the vehicle.

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