Connection, battery pack assembly and vehicle

Abstract

The utility model discloses a connecting piece, battery pack assembly and vehicle, one end of connecting piece is suitable for connecting with battery pack, and the other end of connecting piece is suitable for connecting with external mechanism, wherein, connecting piece is detachably connected with battery pack, and / or, connecting piece is detachably connected with external mechanism. Including the body and the carrier that connect each other, through connecting piece and battery pack and external mechanism are connected respectively, and and at least one is the mode of, compared with prior art, not only realize the connecting function between battery pack and external mechanism, and realize the detachable between battery pack and external mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of power battery technology, specifically relating to a connector, a battery pack assembly, and a vehicle. Background Technology

[0002] With the development of the new energy vehicle industry, the power battery pack is an essential component of new energy vehicles, as its electrical power primarily relies on the battery pack assembly. Current technology typically uses welding to connect the power battery pack assembly to the vehicle frame. However, welding can lead to problems such as deformation of the battery pack assembly or vehicle frame in the welded area and the battery pack not being detachable from the vehicle frame. Utility Model Content

[0003] This utility model provides a connector, a battery pack assembly, and a vehicle, aiming to at least solve one of the technical problems existing in the prior art.

[0004] To achieve the above objectives, a first aspect of this application provides a connector, wherein the connector is detachably connected to at least one of the battery pack or the external mechanism for mounting a battery pack assembly to the external mechanism, characterized in that the battery pack assembly includes a carrier, and the mounting mechanism includes:

[0005] The main body is connected to the carrier.

[0006] A first connecting part, one end of which is connected to the main body, and the other end of which is adapted to be connected to the external mechanism.

[0007] According to the embodiments of this application, the connector includes a body and a carrier that are interconnected. By connecting the connector to the battery pack and an external mechanism respectively, and in a manner in which at least one of them is [missing information], compared with the prior art, not only is the connection function between the battery pack and the external mechanism realized, but the detachability between the battery pack and the external mechanism is also realized.

[0008] In addition, the connector according to this utility model may also have the following additional technical features:

[0009] In some embodiments, the connector includes: a body adapted to connect to the battery pack; and,

[0010] A first connecting part, one end of which is connected to the main body, and the other end of which is adapted to be connected to the external mechanism.

[0011] In some embodiments, the body is adapted to be connected to the carrier of the battery pack.

[0012] In some embodiments, one end of the first connecting portion is connected to the end of the body that is away from the carrier.

[0013] In some embodiments, the body is located between the carrier and the cover of the battery pack, and the other end of the first connecting portion is adapted to pass through the cover and connect to the external mechanism.

[0014] In some embodiments, the body includes a body mounting portion adapted to be connected to the carrier.

[0015] In some embodiments, the body includes a body mounting portion adapted to be connected to the carrier via a first fastener.

[0016] In some embodiments, the body mounting portion includes a first body mounting portion and a second body mounting portion, and the body is fixedly connected to the carrier through the first body mounting portion and the second body mounting portion.

[0017] In some embodiments, the body and the cover are adapted to be clamped together by a second fastener.

[0018] In some embodiments, the first connecting portion is adapted to be fixedly connected to the second fastener so as to press the body and the cover together by the second fastener.

[0019] In some embodiments, a first cavity is formed between the first connecting portion, the body, the second fastener and the cover, and a first sealing element is disposed in the first cavity.

[0020] In some embodiments, the first connecting portion is adapted to be connected to the external mechanism via a third fastener.

[0021] In some embodiments, the first connecting portion is provided with a second mounting hole, the second mounting hole being adapted to connect with the third fastener passing through a second through hole of the external mechanism, so as to connect the first connecting portion to the external mechanism.

[0022] In some embodiments, a second seal is provided between the body and the cover.

[0023] In some embodiments, the body is provided with a first slot for accommodating the second sealing element.

[0024] In some embodiments, a first insulating element is provided between the body and the carrier.

[0025] In some embodiments, the body is provided with a second slot for accommodating the first insulating member.

[0026] In some embodiments, the body further includes a body positioning part, which is adapted to cooperate with a groove provided on the carrier to achieve positioning between the body and the carrier.

[0027] According to a second aspect of this application, embodiments of this application also provide a battery pack assembly, including: a connector.

[0028] In some embodiments, a battery pack is also included, which is connected to the connector, the connector being adapted to connect to an external mechanism.

[0029] According to a second aspect of this application, embodiments of this application also provide a vehicle, including: an external mechanism; and the battery pack assembly described above. Attached Figure Description

[0030] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0031] Figure 1 This is a partial cross-sectional view of the mounting position of the connector according to an embodiment of this application. Figure 1 ;

[0032] Figure 2 This is a partial cross-sectional view of the mounting position of the connector according to an embodiment of this application. Figure 2 ;

[0033] Figure 3 This is a schematic diagram of a connector structure according to an embodiment of this application;

[0034] Figure 4 yes Figure 3 A sectional view of the connector along the AA direction;

[0035] Figure 5 This is a schematic diagram showing the installation positions of the connector and the first insulating member according to one embodiment of this application;

[0036] Figure 6 This is a schematic diagram of the installation position of the connector according to one embodiment of this application;

[0037] Figure 7 This is a schematic diagram of the structure of a battery pack assembly according to an embodiment of this application.

[0038] Figure label:

[0039] 1. Connectors;

[0040] 11. Main body; 111. Main body mounting part; 1111. First main body mounting part; 1112. Second main body mounting part; 112. First slot; 113. Second slot; 114. Main body positioning part;

[0041] 12. First connecting part; 121. Second mounting hole;

[0042] 15. Central axis;

[0043] 2. Battery pack; 21. Carrier; 211. Second recess; 22. Cover; 23. Battery cell;

[0044] 3. First fastener; 4. Second fastener; 5. First cavity; 6. First seal; 7. Second through hole; 9. Third fastener; 10. Second seal; 13. First insulating component;

[0045] 10. Battery pack assembly;

[0046] 100. Vehicles; 1001. External agencies. Detailed Implementation

[0047] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0048] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," 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 mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0051] The following is for reference. Figures 1-7 This invention describes a connector, a battery pack assembly, and a vehicle according to embodiments of the present invention.

[0052] like Figure 1 or Figure 2 As shown, where Figure 1 for Figure 6 A partial sectional view along the Y direction, passing through the central axis 15 of connector 1. Figure 2 for Figure 6 A partial sectional view along the X direction, passing through the central axis of connector 1. It should be noted that: to more intuitively illustrate the solution of this application, Figure 6 The external mechanism 1001 and the third fastener 9 are not shown in the text, but combined with Figure 1 or Figure 2 The technical features can be clearly defined through textual descriptions.

[0053] According to the embodiment of the present utility model, one end of the connector 1 is adapted to be connected to the battery pack 2, and the other end of the connector 1 is adapted to be connected to the external mechanism 1001; wherein, at least one of the connector 1 and the battery pack 2 or the connector 1 and the external mechanism 1001 is detachably connected.

[0054] In some embodiments, one end of the connector 1 can be connected to the battery pack 2 by means of threaded connection, riveting connection, etc., and the other end of the connector 1 can be connected to the external mechanism 1001 by means of threaded connection, riveting connection, etc. However, at least one of the connector 1 and the battery pack 2, or the connector 1 and the external mechanism 1001, must be detachably connected. This design can realize the detachability between the battery pack 2 and the external mechanism 1001, which is convenient for maintenance or disassembly.

[0055] In some embodiments, the connector 1 includes: a body 11 adapted to connect to the battery pack 2; and,

[0056] The first connecting part 12 has one end connected to the main body 11 and the other end adapted to be connected to the external mechanism 1001.

[0057] In some embodiments, the connector 1 includes a body 11 and a first connecting portion 12. The first connecting portion 12 and the body 11 can be fixedly connected together by conventional mechanical connection methods such as threaded connection or welding, or they can be integrally formed by processes such as die casting. The end of the first connecting portion 12 away from the body 11 can be fixedly connected to the external mechanism 1001 by means of threaded connection, riveting connection, etc. Among these, threaded connection is preferred because of its reliable structure and ease of disassembly.

[0058] In some embodiments, the body 11 is adapted to be connected to the carrier 21 of the battery pack 2.

[0059] like Figure 6 The diagram shows an assembly schematic of a connector 1 and a carrier 21. The carrier 21 is part of the battery pack 2, and because its purpose is to provide support for the battery cells 23 of the battery pack 2, it is often made of materials with high strength and rigidity. Directly connecting the body 11 of the connector 1 to the carrier 21 of the battery pack 2 makes the connection between the body 11 and the battery pack 2 more stable. In some embodiments, the number of connectors 1 installed on the carrier 21 can be flexibly arranged according to actual usage requirements; theoretically, the more connectors 1 installed, the more stable the connection between the connector 1 and the carrier 21.

[0060] In some embodiments, the carrier 21 can be assembled from profiles or manufactured using a one-piece molding process.

[0061] In some embodiments, the body 11 of the connector 1 and the carrier 21 of the battery pack 2 can be fixedly connected by means of threaded connection, riveting connection, etc. During the design process, the choice can be made flexibly according to the usage requirements, which will not be elaborated here.

[0062] In some embodiments, one end of the first connecting portion 12 is connected to the end of the body 11 that is away from the support 21.

[0063] In some embodiments, the first connecting portion 12 is a columnar structure, one end face of the first connecting portion 12 is connected to the end face of the body 11 away from the support 21, and the area of ​​one end face of the first connecting portion 12 is smaller than the area of ​​the end face of the body 11 away from the support 21.

[0064] In some embodiments, the body 11 is located between the carrier 21 and the cover 22 of the battery pack 2, and the other end of the first connecting portion 12 is adapted to pass through the cover 22 and connect to the external mechanism 1001.

[0065] In some embodiments, after the body 11 is fixedly connected to the carrier 21, the body 11 will be located between the carrier 21 and the cover 22 of the battery pack 2. The cover 22 of the battery pack 2 is the outermost structure of the battery pack 2, and its function is to seal the battery pack 2 and protect it. That is, after the body 11 and the carrier 21 are assembled, it is located inside the battery pack 2. The cover 22 has a through hole for the first connecting part 12 to pass through and connect with the external mechanism 1001, thereby realizing the fixed connection between the battery pack 2 and the external mechanism 1001.

[0066] In some embodiments, the external mechanism 1001 may be a vehicle body beam or a vehicle body floor, etc.

[0067] In some embodiments, the body 11 includes a body mounting portion 111, which is adapted to be connected to the carrier 21.

[0068] In some embodiments, the body mounting portion 111 serves as the part directly connected to the body 11 and the support 21. Considering that it will directly bear the impact force, the body mounting portion 111 will be reinforced accordingly. For example, a certain number of reinforcing ribs can be provided.

[0069] In some embodiments, the mounting part 111 and the carrier 21 can be fixedly connected by means of threaded connection, riveting connection or other methods. During the design process, the choice can be made flexibly according to the usage requirements, which will not be elaborated here.

[0070] In some embodiments, the body 11 includes a body mounting portion 111, which is adapted to be connected to the carrier 21 via a first fastener 3.

[0071] In some embodiments, the main body mounting portion 111 has a first through hole, and the carrier 21 has a first mounting hole corresponding to the first through hole. The first fastener 3 can pass through the first through hole on the main body mounting portion 111 and cooperate with the first mounting hole on the carrier 21 to fix the main body 11 of the connector 1 to the carrier 21.

[0072] In some embodiments, the first fastener 3 is a bolt or screw. In this case, a threaded steel sleeve can be pre-embedded at the first mounting hole opened on the carrier 21. By the combination of the bolt and the threaded steel sleeve, it can withstand a large lateral impact force.

[0073] In some embodiments, the first fastener 3 may be a bolt or screw, and the first mounting hole on the corresponding carrier 21 is an internal threaded hole corresponding to the selected bolt or screw specification.

[0074] In some embodiments, the body mounting portion 111 includes a first body mounting portion 1111 and a second body mounting portion 1112, and the body 11 is fixedly connected to the carrier 21 through the first body mounting portion 1111 and the second body mounting portion 1112.

[0075] In order to improve the reliability of the connection between the main body 11 and the battery pack 2, in some embodiments, the number of main body mounting parts 111 can be multiple, so that the reliability of the fixed connection between the main body 11 and the battery pack 2 can be improved by increasing the number of fastening points.

[0076] In some embodiments, there are two body mounting portions 111, namely a first body mounting portion 1111 and a second body mounting portion 1112, and the two body mounting portions 111 are arranged opposite to each other.

[0077] In some embodiments, the body 11 and the cover 22 are adapted to be clamped together by a second fastener 4.

[0078] After the body 11 of connector 1 is assembled with the carrier 21 of battery pack 2, the body 11 is located between the carrier 21 and the cover 22 of battery pack 2. Considering the high sealing requirements of battery pack 2, the cover 22 needs to be pressed tightly together with the body 11 to prevent external dust and other impurities from entering the interior of battery pack 2 through the connection between the carrier 21 and the cover 22. One feasible implementation is to use a second fastener 4 to press the cover 22 and the body 11 together.

[0079] In some embodiments, the first connecting portion 12 is adapted to be fixedly connected to the second fastener 4 so as to press the body 11 and the cover 22 together by means of the second fastener 4.

[0080] In some embodiments, the first connecting part 12 is a columnar structure with external threads on its outer peripheral surface. In this case, the second fastener 4 can be a nut. After the second fastener 4 engages with the external threads of the first connecting part 12, the end face of the nut presses the cover 22 and the body 11 together.

[0081] In some embodiments, the nut is preferably selected with a larger end face area to provide a larger end face to press against the cover 22.

[0082] In some embodiments, a first cavity 5 is formed between the first connecting portion 12, the body 11, the second fastener 4 and the cover 22, and a first sealing element 6 is disposed in the first cavity 5.

[0083] As described above, after the cover 22 and the body 11 are pressed together by the cooperation of the second fastener 4 and the first connecting part 12, a first cavity 5 is formed between the first connecting part 12, the body 11, the second fastener 4 and the cover 22. The reason for the formation of the first cavity 5 is that the size of the through hole opened on the cover plate for the first connecting part 12 to pass through is larger than the cross-sectional size of the connecting part. When the first connecting part 12 is a cylindrical structure and the through hole opened on the cover plate is a circular hole, the diameter of the through hole opened on the cover plate is larger than the cross-sectional diameter of the first connecting part 12.

[0084] In some embodiments, the first cavity 5 may be filled with sealant as a first sealing layer. This prevents external dust and other impurities from entering the battery pack 2 through the connection between the carrier 21 and the cover 22, or prevents thermal runaway fumes from entering the passenger compartment of the vehicle 100 through the connection between the carrier 21 and the cover 22 after thermal runaway of the battery pack 2, thus preventing safety hazards to the occupants.

[0085] In some embodiments, the first connecting portion 12 is adapted to be connected to the external mechanism 1001 via a third fastener 9.

[0086] In some embodiments, the first connecting portion 12 is provided with a second mounting hole 121, which is adapted to be connected to a third fastener 9 passing through a second through hole 7 of the external mechanism 1001, so that the first connecting portion 12 is connected to the external mechanism 1001.

[0087] In some embodiments, a mounting hole is provided on the side end face of the second connecting part away from the body 11, and a through hole is provided at the opposite position of the external mechanism 1001. The third fastener 9 passes through the through hole of the external mechanism 1001 and cooperates with the mounting hole on the second connecting part, thereby fixing the first connecting part 12 to the external mechanism 1001.

[0088] In some embodiments, the mounting hole on the side of the second connecting part away from the body 11 is a threaded hole, and the third fastener 9 is a bolt or screw. The third fastener 9 passes through the through hole of the external mechanism 1001 and engages with the threaded hole on the second connecting part, thereby fixing the first connecting part 12 to the external mechanism 1001.

[0089] In some embodiments, a second sealing element 10 is provided between the body 11 and the cover 22.

[0090] like Figure 3 or Figure 4 As shown, in some embodiments, the body 11 is provided with a first slot 112 for accommodating the second sealing member 10.

[0091] In some embodiments, a first groove is provided on the body 11, and the first groove surrounds the first connecting portion 12. A second sealing element 10 is installed in the first groove. When the second fastener 4 engages with the first connecting portion 12, it presses the cover 22 and the body 11 together, and at the same time, it also presses the second sealing element 10 provided in the first groove between the cover 22 and the body 11. At this time, the second sealing element 10 can serve as a second sealing layer, working together with the first sealing layer to prevent external dust and other impurities from entering the battery pack 2 through the connection between the carrier 21 and the cover 22, or to prevent thermal runaway fumes from entering the passenger compartment of the vehicle 100 through the connection between the carrier 21 and the cover 22 after the battery pack 2 experiences thermal runaway, thus preventing safety hazards to the occupants.

[0092] In some embodiments, the cross-section of the first groove can be rectangular, circular, etc., and the corresponding cross-sectional shape of the second sealing member 10 can be rectangular or circular, which are consistent with the cross-sectional shape of the first groove, or other shapes that are inconsistent with the cross-sectional shape of the first groove, as long as the second sealing member 10 can be assembled in the first groove to achieve the sealing function.

[0093] In some embodiments, the material of the second seal 10 may be rubber or the like.

[0094] In some embodiments, a first insulating member 13 is provided between the main body 11 and the battery cells 23 of the battery pack 2. As a power supply device, the battery pack 2 typically has a large number of battery cells 23 to achieve a longer driving range, thus resulting in a relatively large weight. The connector 1 connects the battery pack 2 to the external mechanism 1001, requiring high strength; therefore, it is usually made of a strong metal. However, metal is generally conductive. During use, the electric arc generated by the battery cells 23 can be transmitted to the metal connector 1, and then through the connector 1 to the vehicle body, posing a safety hazard to the occupants. Therefore, it is necessary to provide a first insulating member 13 between the connector 1 and the battery cells 23 to prevent the electric arc generated by the battery cells 23 from being transmitted to the connector 1.

[0095] In some embodiments, when the connector 1 is made of a non-conductive material, the first insulating member 13 can be omitted from the solution of this application, which is also within the scope of protection of this application.

[0096] In some embodiments, the first insulating element 13 may be a ceramic gasket. The battery cell 23 may be a battery cell.

[0097] In some embodiments, the body 11 is provided with a second slot 113, which is used to accommodate the first insulating member 13 to achieve insulation between the battery unit 23 and the connector 1.

[0098] like Figure 5 As shown, in some embodiments, after the first insulating member 13 is assembled with the body 11, the first insulating member 13 at least partially wraps around the body 11, and the first insulating member 13 surrounds the body 11. While serving to separate the battery cell 23 from the connector 11, it does not occupy more internal space of the battery pack 2.

[0099] In some embodiments, the body 11 further includes a body positioning part 114, which is adapted to cooperate with a second groove 211 provided on the support body 21 to achieve positioning between the body 11 and the support body 21.

[0100] In some embodiments, the purpose of providing a body positioning part 114 on the body 11 is to position the body 11 and the carrier 21 before the body 11 is fixedly connected to the carrier 21 by the first fastener 3, so as to facilitate the connection between the first fastener 3 and the through hole opened on the carrier 21.

[0101] like Figure 7 As shown, this utility model also proposes a battery pack assembly 10 having the above-described embodiments.

[0102] In some embodiments, the battery pack assembly 10 includes a battery pack 2 and a connector 1. The battery pack 2 is fixed to one end of the connector 1 by a threaded connection, and the other end of the connector 1 is fixed to an external mechanism 1001 by a threaded connection, thereby fixing the battery pack 2 and the external mechanism 1001 together through the connector 1. When it is necessary to replace or repair the battery pack 2, and there is a need to remove the battery pack 2 from the external mechanism 1001, the battery pack 2 can be separated from the external mechanism 1001 by removing the third fastener 9. At this time, the connector 1 and the battery pack 2 continue to maintain a connection relationship.

[0103] In some embodiments, the battery pack assembly 10 further includes an electrical unit that is electrically connected to the battery pack and can perform functions such as voltage conversion, discharging, and charging.

[0104] This utility model also proposes a vehicle 100 having the above-described embodiments.

[0105] In some embodiments, the vehicle 100 includes: an external mechanism 1001 and a battery pack assembly 10.

[0106] In some embodiments, the external mechanism 1001 may be a vehicle body beam or a vehicle body floor, which is detachably connected to the battery pack assembly 10.

[0107] The vehicle 100 according to the embodiments of this application includes a body and a carrier connected to each other. By connecting the connector 1 to the battery pack and the external mechanism 1001 respectively, and at least one of 1 and 1001 is in a certain manner, compared with the prior art, not only is the connection function between the battery pack 2 and the external mechanism 1001 realized, but the detachable connection between the battery pack 2 and the external mechanism 1001 is also realized.

[0108] In some embodiments, this application provides an assembly process scheme between the connector 1, the battery pack 2, and the external mechanism 1001. First, the first insulating member 13 is pre-fitted onto the body 11 through the body positioning part 114; then, the connector 1 and the first insulating member 13 are mounted on the carrier 21 using the body positioning part 114, and the first through hole on the body mounting part 111 is aligned with the first mounting hole on the carrier 21. Two first fasteners 3 are respectively passed through the first through holes and the first mounting holes on the first body mounting part 1111 and the second body mounting part 1112 to lock and fix them in place.

[0109] Install the second seal 10 in the first slot 112 of the body 11; then cover the second seal 10 with the cover 22, and then install the first seal 6 in the sealing glue area (the sealing glue area is the state in which the second fastener 4 is removed from the composition of the first cavity 5) (when the first seal 6 is sealant, this step is to apply sealant); assemble and tighten the second fastener 4 with the external thread of the first connecting part 12, thereby pressing the cover 22 and compressing the second seal 10 through the cover 22; align the through hole of the external mechanism 1001 with the first connecting part 12 of the connector 1, and assemble and tighten the third fastener 9 with the external thread of the first connecting part 12 to lock the external mechanism 1001.

[0110] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0111] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A connector, characterized in that, One end of the connector is adapted to be connected to the battery pack, and the other end of the connector is adapted to be connected to an external mechanism; wherein, at least one of the connector and the battery pack or the connector and the external mechanism is detachably connected.

2. The connector according to claim 1, characterized in that, The connector includes: Body, the body being adapted to connect to the battery pack; and, A first connecting part, one end of which is connected to the main body, and the other end of which is adapted to be connected to the external mechanism.

3. The connector according to claim 2, characterized in that, The body is adapted to be connected to the carrier of the battery pack.

4. The connector according to claim 3, characterized in that, One end of the first connecting portion is connected to the end of the body that is away from the support.

5. The connector according to claim 3, characterized in that, The main body is located between the carrier and the cover of the battery pack, and the other end of the first connecting part is adapted to pass through the cover and connect to the external mechanism.

6. The connector according to claim 3, characterized in that, The body includes a body mounting part, which is adapted to be connected to the carrier.

7. The connector according to claim 3, characterized in that, The body includes a body mounting portion, which is adapted to be connected to the carrier via a first fastener.

8. The connector according to claim 6, characterized in that, The main body mounting part includes a first main body mounting part and a second main body mounting part, and the main body is fixedly connected to the carrier through the first main body mounting part and the second main body mounting part.

9. The connector according to claim 5, characterized in that, The body and the cover are adapted to be clamped together by a second fastener.

10. The connector according to claim 9, characterized in that, The first connecting portion is adapted to be fixedly connected to the second fastener so as to press the body and the cover together by the second fastener.

11. The connector according to claim 9, characterized in that, A first cavity is formed between the first connecting part, the body, the second fastener and the cover, and a first sealing element is disposed in the first cavity.

12. The connector according to claim 2, characterized in that, The first connecting part is adapted to be connected to the external mechanism by a third fastener.

13. The connector according to claim 12, characterized in that, The first connecting part is provided with a second mounting hole, which is adapted to connect with the third fastener passing through the second through hole of the external mechanism, so that the first connecting part is connected to the external mechanism.

14. The connector according to claim 5, characterized in that, A second sealing element is provided between the body and the cover.

15. The connector according to claim 14, characterized in that, The main body is provided with a first slot, which is used to accommodate the second sealing element.

16. The connector according to claim 12, characterized in that, A first insulating element is provided between the main body and the battery cells of the battery pack.

17. The connector according to claim 16, characterized in that, The main body is provided with a second slot, which is used to accommodate the first insulating component.

18. The connector according to claim 3, characterized in that, The main body also includes a main body positioning part, which is adapted to cooperate with a second groove provided on the carrier to realize the positioning between the main body and the carrier.

19. A battery pack assembly, characterized in that, Includes the connector as described in any one of claims 1 to 18.

20. The battery pack assembly according to claim 19, characterized in that, It also includes a battery pack connected to the connector, the connector being adapted to connect to an external mechanism.

21. A vehicle, characterized in that, The vehicle includes: an external mechanism; and a battery pack assembly as described in any one of claims 19-20.

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