High-voltage connection assembly, battery pack and vehicle

Abstract

The utility model belongs to the technical field of batteries, and particularly relates to a high-voltage connecting assembly, a battery pack and a vehicle. The high-voltage connection assembly comprises a copper bar assembly, a protection box and a high-voltage connector provided with a terminal group, the protection box comprises a cover body and a seat body, the cover body and the seat body are combined to form an accommodating space, the terminal group is mounted in the accommodating space, and one end of the copper bar assembly extends into the accommodating space and is electrically connected with the terminal group; the base body is further provided with heat dissipation holes communicated with the containing space. According to the utility model, when the cover body covers the seat body, the connecting part of the copper bar assembly and the wiring terminal group is hidden in the accommodating space, so that the connecting part of the wiring terminal group and the copper bar assembly of the high-voltage connector is prevented from being exposed in the external environment, and the safety of the high-voltage connecting assembly is improved. In addition, the seat body is further provided with the heat dissipation holes communicated with the accommodating space, heat generated when the copper bar assembly conducts electricity can be dissipated to the external environment through the heat dissipation holes, and the heat dissipation effect of the high-voltage connection assembly is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of batteries, and in particular relates to a high-voltage connection component, a battery pack and a vehicle. Background Art

[0002] At present, the connection between the battery pack and the external wiring harness needs to be achieved through a high-voltage connector. In the related technology, the high-voltage connector and the copper busbar are directly fixed with bolts. The high-voltage connector and the copper busbar are usually exposed to the environment. After the relay fails, the operator's fingers are likely to come into contact with the exposed conductive part of the high-voltage connector, causing the risk of electric shock. Utility Model Content

[0003] The utility model aims at the technical problems such as the risk of electric shock at the connection part between the high-voltage connector and the copper busbar in the prior art, and proposes a high-voltage connection component, a battery pack and a vehicle.

[0004] In order to solve the above problems, the first embodiment of the utility model provides a high-voltage connection assembly, including a copper busbar assembly, a protective box and a high-voltage connector provided with a terminal group, the protective box includes a cover body and a base body, the cover body and the base body cover are combined to form a accommodating space, the terminal group is installed in the accommodating space, one end of the copper busbar assembly extends into the accommodating space and is electrically connected to the terminal group; the base body is also provided with a heat dissipation hole connected to the accommodating space.

[0005] Optionally, the cover body is provided with a first clamping portion, and the base body is provided with a second clamping portion, and the cover body is covered on the base body by the first clamping portion and the second clamping portion being clamped to each other.

[0006] Optionally, the first clamping portion is a locking tongue, the second clamping portion is a locking hole, and the locking tongue is inserted into the locking hole and clamped with the locking hole.

[0007] Optionally, the protective box further comprises a rotatable connecting member, and the cover body is rotatably connected to the base body via the rotatable connecting member.

[0008] Optionally, at least one convex rib is provided on the seat body, and the convex rib is located on the inner wall of the accommodating space and protrudes toward the terminal group; when the copper busbar assembly extends into the accommodating space and is electrically connected to the terminal group, the convex rib abuts against the copper busbar assembly.

[0009] Optionally, at least one protrusion is provided on the cover body, and the protrusion is protrudingly arranged on the inner wall of the cover body facing the accommodating space; when the copper busbar assembly extends into the accommodating space and is electrically connected to the terminal group, the protrusion abuts against the terminal group and / or the copper busbar assembly.

[0010] Optionally, the copper busbar assembly is coated with an insulating layer.

[0011] Optionally, the high-voltage connection assembly further includes a fixing member, and the copper busbar assembly is fixedly connected to the terminal group via the fixing member.

[0012] Optionally, the protective box further comprises a partition installed in the accommodating space, wherein the partition divides the accommodating space into a first space and a second space;

[0013] The terminal group includes a first terminal inserted into the first space and a second terminal inserted into the second space;

[0014] The copper bar assembly includes a first copper bar and a second copper bar, one end of the first copper bar extends into the first space and is electrically connected to the first terminal, and one end of the second copper bar extends into the second space and is electrically connected to the second terminal.

[0015] The second embodiment of the present invention further provides a battery pack, comprising the above-mentioned high-voltage connection assembly.

[0016] The third embodiment of the present utility model further provides a vehicle, comprising the above-mentioned battery pack.

[0017] In the utility model, the protective box includes a cover body and a base body, the cover body and the base body cover are combined to form a storage space, the terminal group of the connector is installed in the storage space, one end of the copper busbar assembly extends into the storage space and is electrically connected to the terminal group; when the cover body is closed on the base body, the connection part between the copper busbar assembly and the terminal group is hidden in the storage space, thereby avoiding the connection part between the terminal group of the high-voltage connector and the copper busbar assembly from being exposed to the external environment, thereby improving the safety of the high-voltage connection assembly. In addition, the base body is also provided with a heat dissipation hole connected to the storage space, and the heat generated by the copper busbar assembly when conducting electricity can be dissipated to the external environment through the heat dissipation hole, thereby improving the heat dissipation effect of the high-voltage connection assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 A schematic diagram of the structure of a high-voltage connection assembly provided in one embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the structure of a high-voltage connection assembly provided in an embodiment of the utility model integrating an open state and a closed state;

[0021] Figure 3 A schematic structural diagram of a protection box of a high-voltage connection assembly provided in one embodiment of the utility model;

[0022] Figure 4 A schematic structural diagram of a protective box of a high-voltage connection assembly provided in one embodiment of the utility model from another perspective.

[0023] The reference numerals in the specification are as follows:

[0024] 1. Copper busbar assembly; 11. Insulation layer; 2. Protection box; 21. Cover body; 211. First clamping part; 212. Protrusion; 22. Base body; 221. Accommodation space; 222. Heat dissipation hole; 223. Second clamping part; 224. Protruding rib; 225. Partition; 23. Rotating connector; 3. High-voltage connector; 31. Terminal group; 4. Fixing part. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0026] It should be understood that the directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", and "middle" are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations of the utility model.

[0027] like Figures 1 to 4 As shown, a high-voltage connection assembly provided by the first embodiment of the utility model includes a copper busbar assembly 1, a protective box 2, and a high-voltage connector 3 provided with a terminal group 31. The protective box 2 includes a cover body 21 and a base body 22. The cover body 21 and the base body 22 are combined to form a receiving space 221. The terminal group 31 is installed in the receiving space 221. One end of the copper busbar assembly 1 extends into the receiving space 221 and is electrically connected to the terminal group 31. It can be understood that the base body 22 is sleeved on the terminal group 31 from bottom to top, so that the terminal group 31 is located in the receiving space 221 of the base body 22. When the cover body 21 is covered on the base body 22, the connection part between the copper busbar assembly 1 and the terminal group 31 is hidden in the receiving space 221. It should be noted that the receiving space 221 can be set on the base body 22 and / or the cover body 21.

[0028] The seat body 22 is also provided with a heat dissipation hole 222 communicating with the accommodation space 221. Preferably, the cover body 21 covers the top of the seat body 22, and the heat dissipation hole 222 is arranged at the bottom of the seat body 22. Further, the heat dissipation hole 222 can also be arranged on the side wall of the seat body 22.

[0029] In the utility model, the protective box 2 includes a cover body 21 and a base body 22. The cover body 21 and the base body 22 are combined to form a storage space 221. The terminal group 31 of the connector is installed in the storage space 221. One end of the copper busbar assembly 1 extends into the storage space 221 and is electrically connected to the terminal group 31. When the cover body 21 is covered on the base body 22, the connection part between the copper busbar assembly 1 and the terminal group 31 is hidden in the storage space 221, thereby avoiding the connection part between the terminal group 31 of the high-voltage connector 3 and the copper busbar assembly 1 from being exposed to the external environment, thereby improving the safety of the high-voltage connection assembly. In addition, the base body 22 is also provided with a heat dissipation hole 222 connected to the storage space 221. The heat generated by the copper busbar assembly 1 when conducting electricity can be dissipated to the external environment through the heat dissipation hole 222, thereby improving the heat dissipation effect of the high-voltage connection assembly.

[0030] In one embodiment, if Figure 1 and Figure 3 As shown, the cover body 21 is provided with a first clamping portion 211, and the base body 22 is provided with a second clamping portion 223, and the cover body 21 is covered on the base body 22 by the first clamping portion 211 and the second clamping portion 223 that are mutually clamped. It can be understood that the first clamping portion 211 and the second clamping portion 223 can be mutually adapted lock buckles, etc.; the cover body 21 is covered on the base body 22 by the first clamping portion 211 and the second clamping portion 223 that are mutually locked, so that it is convenient for the user to open or close the accommodating space 221.

[0031] In one embodiment, if Figure 3 As shown, the first engaging portion 211 is a locking tongue, and the second engaging portion 223 is a locking hole, and the locking tongue is inserted into the locking hole and engaged with the locking hole. It can be understood that the locking tongue is arranged on the outer wall of one side of the cover body 21, and the lock buckle is also arranged on the outer wall of one side of the base body 22. When the cover body 21 is covered on the base body 22, the locking tongue is inserted into the locking hole.

[0032] In one embodiment, if Figure 3 As shown, the protective box 2 further includes a rotating connection member 23, and the cover body 21 is rotatably connected to the base body 22 through the rotating connection member 23. It can be understood that the rotating connection member 23 includes but is not limited to a hinge, a flexible belt, etc.; the rotating connection member 23 is connected between the cover body 21 and the base body 22, and the cover body 21 can be rotatably connected to the base body 22 through the rotating connection member 23, and the cover body 21 can cover the base body 22.

[0033] In one embodiment, if Figure 1 and Figure 3As shown, at least one convex rib 224 is provided on the seat body 22, and the convex rib 224 is located on the inner wall of the accommodating space 221 and protrudes toward the terminal group 31; when the copper bar assembly 1 extends into the accommodating space 221 and is electrically connected to the terminal group 31, the convex rib 224 abuts against the copper bar assembly 1. Preferably, the convex rib 224 is provided on all inner walls of the accommodating space 221, that is, the convex rib 224 is provided on the inner walls of both sides of the accommodating space 221, and the convex rib 224 is also provided on the bottom wall of the accommodating space 221. Specifically, when the cover body 21 is covered on the seat body 22, the convex rib 224 is pressed against the surrounding of the copper bar assembly 1, so that the convex rib 224 can limit the copper bar assembly 1 in the accommodating space 221, thereby ensuring the stability of the copper bar assembly 1 when plugged into the accommodating space 221. In addition, the convex rib 224 can also play a role in enhancing the strength of the seat body 22.

[0034] In one embodiment, if Figure 1 and Figure 3 As shown, at least one convex portion 212 is provided on the cover 21, and the convex portion 212 is protrudingly arranged on the inner wall of the cover 21 facing the accommodation space 221; when the copper busbar assembly 1 extends into the accommodation space 221 and is electrically connected to the terminal group 31, the convex portion 212 abuts against the terminal group 31 and / or the copper busbar assembly 1. It can be understood that the convex portion 212 is arranged on the bottom wall of the cover 21; when the cover 21 is covered on the base 22, the convex portion 212 can press the terminal group 31 and / or the copper busbar assembly 1 in the accommodation space 221 from above, thereby ensuring the stability of the connection between the copper busbar assembly 1 and the terminal group 31.

[0035] In one embodiment, if Figure 1 As shown, the copper busbar assembly 1 is coated with an insulating layer 11. It can be understood that the insulating layer 11 ensures the insulation of the copper busbar assembly 1 and further ensures the safety of the high-voltage connection assembly.

[0036] In one embodiment, if Figure 1 As shown, the high-voltage connection assembly further includes a fixing member 4, and the copper busbar assembly 1 is fixedly connected to the terminal group 31 through the fixing member 4. It can be understood that the fixing member 4 includes but is not limited to bolts, screws, etc.; specifically, the copper busbar assembly 1 is provided with a first connection hole, and the terminal group 31 is provided with a second connection hole, and the copper busbar assembly 1 is connected to the terminal group 31 by inserting the fixing member 4 in the first connection hole and the second connection hole.

[0037] In one embodiment, if Figure 3 As shown, the protective box 2 further includes a partition 225 installed in the accommodating space 221, and the partition 225 divides the accommodating space 221 into a first space and a second space; it can be understood that the first space and the second space are arranged at intervals on the left and right.

[0038] The terminal group 31 includes a first terminal inserted into the first space and a second terminal inserted into the second space; it can be understood that the first terminal and the second terminal can be a positive terminal and a negative terminal respectively.

[0039] The copper bar assembly 1 comprises a first copper bar and a second copper bar, wherein one end of the first copper bar extends into the first space and is electrically connected to the first terminal, and one end of the second copper bar extends into the second space and is electrically connected to the second terminal.

[0040] In this embodiment, the connection part between the first copper busbar and the first terminal is located in the first space, and the connection part between the second copper busbar and the second terminal is located in the second space; the first space and the second space are separated by the partition 225, so that the partition 225 can separate the first terminal and the second terminal of the high-voltage connector 3 to prevent fingers from touching the first terminal and the second terminal, and increase the distance between the first terminal and the second terminal, so that the high-voltage connection assembly can meet higher voltage resistance requirements and meet IPXXB grade requirements.

[0041] The second embodiment of the present invention further provides a battery pack, comprising the above-mentioned high-voltage connection assembly.

[0042] The third embodiment of the present utility model further provides a vehicle, comprising the above-mentioned battery pack.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high voltage connection assembly, characterized in that: It includes a copper busbar assembly, a protective box and a high-voltage connector with a terminal group. The protective box includes a cover body and a base body. The cover body and the base body are combined to form a storage space. The terminal group is installed in the storage space. One end of the copper busbar assembly extends into the storage space and is electrically connected to the terminal group. The base body is also provided with a heat dissipation hole connected to the storage space.

2. The high voltage connection assembly according to claim 1, characterized in that: The cover body is provided with a first clamping portion, and the base body is provided with a second clamping portion. The cover body is covered on the base body by the first clamping portion and the second clamping portion being clamped to each other.

3. The high voltage connection assembly according to claim 2, characterized in that: The first clamping portion is a locking tongue, the second clamping portion is a locking hole, and the locking tongue is inserted into the locking hole and clamped with the locking hole.

4. The high voltage connection assembly according to claim 1, characterized in that: The protection box further comprises a rotating connection piece, and the cover body is rotatably connected to the base body via the rotating connection piece.

5. The high voltage connection assembly according to claim 1, characterized in that: The seat body is provided with at least one convex rib, which is located on the inner wall of the accommodating space and protrudes toward the terminal group; when the copper busbar assembly extends into the accommodating space and is electrically connected to the terminal group, the convex rib abuts against the copper busbar assembly.

6. The high voltage connection assembly according to claim 1, characterized in that: The cover body is provided with at least one protrusion, which is protrudingly arranged on the inner wall of the cover body facing the accommodating space; when the copper busbar assembly extends into the accommodating space and is electrically connected to the terminal group, the protrusion abuts against the terminal group and / or the copper busbar assembly.

7. The high voltage connection assembly according to claim 1, characterized in that: The copper busbar assembly is coated with an insulating layer; and / or The high-voltage connection assembly also includes a fixing member, and the copper busbar assembly is fixedly connected to the terminal group via the fixing member.

8. The high voltage connection assembly according to claim 1, characterized in that: The protective box further comprises a partition installed in the accommodation space, wherein the partition divides the accommodation space into a first space and a second space; The terminal group includes a first terminal inserted into the first space and a second terminal inserted into the second space; The copper bar assembly includes a first copper bar and a second copper bar, one end of the first copper bar extends into the first space and is electrically connected to the first terminal, and one end of the second copper bar extends into the second space and is electrically connected to the second terminal.

9. A battery pack, characterized in that: Comprising the high voltage connection assembly according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the battery pack as claimed in claim 9.

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