CN210805907U

CN210805907U - Battery pack output pole assembly and battery pack

Info

Publication number: CN210805907U
Application number: CN201921949584.1U
Authority: CN
Inventors: 邱潇阁; 何聪; 李斌; 王越; 王佳贤; 张国烽
Original assignee: Microvast Power Systems Huzhou Co Ltd
Current assignee: Microvast Power Systems Huzhou Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-06-19
Anticipated expiration: 2029-11-12

Abstract

The utility model provides a group battery output utmost point subassembly and group battery, including module busbar and utmost point ear busbar, still include the connecting piece, the connecting piece includes that horizontal part and vertical portion and horizontal part and vertical portion constitute L shape structure jointly, and utmost point ear busbar is connected with vertical portion or horizontal part electricity, and the module busbar is connected with horizontal part or vertical portion electricity. The utility model provides a utmost point ear busbar and module busbar are difficult to the problem of reliable electricity connection in finite space, provide a group battery output utmost point subassembly and group battery.

Description

Battery pack output pole assembly and battery pack

Technical Field

The utility model relates to a group battery output pole subassembly and group battery.

Background

With the rapid development of new energy vehicles, the safety of the battery pack as an important component of the electric vehicle is more and more emphasized, wherein the reliability of the electrical connection of the battery pack is important for the safety of the battery pack. In the battery pack system, the electrical connection of the tabs of each cell is realized through a tab bus bar, and the electrical connection between the modules is realized through a module bus bar. How to realize reliable electric connection between the tab bus and the module bus in a limited space becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a battery pack output electrode assembly, including module busbar and utmost point ear busbar, still include the connecting piece, the connecting piece includes horizontal part and vertical portion and horizontal part and vertical portion constitute L shape structure jointly, and utmost point ear busbar is connected with vertical portion electricity, and module busbar is connected with the horizontal part electricity; or the lug bus bar is electrically connected with the horizontal part, and the module bus bar is electrically connected with the vertical part.

The module busbar and the lug busbar are both of a sheet structure, and in a battery pack system, the module busbar and the lug busbar are not on the same plane, so that the module busbar and the lug busbar are difficult to be electrically connected in a limited space; the embodiment of the utility model provides a module busbar and utmost point ear busbar are connected respectively to the horizontal part and the vertical portion through L shape connecting piece, have realized the electricity connection of group's busbar and utmost point ear busbar in limited space.

The electrode lug bus bar is electrically connected with the vertical part through the first fixing piece, the module bus bar is electrically connected with the horizontal part through the second fixing piece, or the electrode lug bus bar is electrically connected with the horizontal part through the first fixing piece, and the module bus bar second fixing piece is electrically connected with the vertical part.

The battery pack output electrode assembly also comprises an insulation assembly, the insulation assembly comprises an insulation seat and an insulation cover, the insulation cover at least comprises a main body part and two bending parts, the main body part and the two bending parts jointly form a U-shaped structure, and the two bending parts are respectively connected with two ends of the insulation seat to form a cavity for accommodating the connecting piece; the connecting piece is arranged in a cavity formed by the insulating seat and the insulating cover, and the horizontal part or the vertical part is connected with the insulating seat; at least one first avoiding part for dismounting the first fixing piece is arranged at the position of the main body part corresponding to the first fixing piece.

The first fixing member may typically be a threaded connection, such as: screws or bolts. The main part sets up the first mounting of dodging a convenient to detach and installation of portion, is favorable to improving installation and maintenance efficiency.

The first avoidance portion comprises a first through hole.

The first avoiding portion may be a first through hole capable of allowing the first fixing member and a tool (e.g., a screwdriver) to pass therethrough, so as to facilitate the mounting and dismounting of the first fixing member.

The first portion of dodging still includes insulating elastic component A, and insulating elastic component A is sheet structure, and insulating elastic component A's stiff end is connected with the main part, and insulating elastic component A's free end suspension is in first through-hole.

When the first fixing part is disassembled and assembled, the first fixing part or the disassembling tool presses the free end of the insulating elastic part A, and the free end of the insulating elastic part A is bent, so that the first fixing part or the disassembling tool can be disassembled and assembled through the first through hole. After the disassembly and assembly are completed, particularly after the installation is completed, the free end of the insulating elastic part A is restored to the original state, and the insulating property of the insulating assembly is enhanced.

A first avoidance part at least comprises two insulating elastic pieces A, and the insulating elastic pieces A are fan-shaped.

The fixed ends of the insulating elastic pieces A of the first avoidance part are distributed along the circumference of the first through hole; the free end of each insulating elastic member a extends toward the first through hole axis.

The insulating seat and the insulating cover are integrally formed.

And at least one second avoiding part for dismounting the second fixing piece is arranged at the position, corresponding to the second fixing piece, of one of the bending parts.

The second avoidance part comprises a second through hole.

The second avoiding portion may be a second through hole capable of allowing the second fixing member and a tool (e.g., a screwdriver) to pass therethrough, so as to facilitate the mounting and dismounting of the second fixing member.

The second avoiding portion further comprises an insulating elastic part B, the insulating elastic part B is of a sheet structure, a fixed end of the insulating elastic part B is connected with a bending portion provided with the second avoiding portion, and a free end of the insulating elastic part B is suspended in the second through hole.

When the second fixing part is disassembled and assembled, the second fixing part or the disassembling tool presses the free end of the insulating elastic part B, and the free end of the insulating elastic part B is bent, so that the second fixing part or the disassembling tool can be disassembled and assembled through the second through hole. After the disassembly and assembly are completed, particularly after the installation is completed, the free end of the insulating elastic part B is restored to the original state, and the insulating property of the insulating assembly is enhanced.

One side of the insulating base, which is away from the insulating cover, is provided with a buckle or a clamping groove.

The buckle or the clamping groove of the insulating seat is matched with the clamping groove or the buckle of the end plate or the side plate of the battery pack to realize the installation of the insulating seat and the end plate or the side plate of the battery pack.

A second avoidance part at least comprises two insulating elastic pieces B, and the insulating elastic pieces B are fan-shaped.

The fixed ends of the insulating elastic pieces B of one second avoidance part are distributed along the circumference of the second through hole; the free end of each insulating elastic member B extends toward the second through-hole axis.

An embodiment of the utility model provides a group battery is still provided, include group battery output utmost point subassembly.

The utility model discloses beneficial effect of embodiment:

the embodiment of the utility model has the advantages that the horizontal part and the vertical part of the L-shaped connecting piece are respectively connected with the module busbar and the pole ear busbar, so that the module busbar and the pole ear busbar are electrically connected in a limited space; the embodiment of the utility model provides a dodge the portion through setting up on the insulating boot, compromise insulating assembly's insulation and the dismouting efficiency of group battery output pole subassembly.

Drawings

FIG. 1 is a schematic view of the assembled battery output pole assembly in an installed state;

FIG. 2 is an exploded view of the assembled battery output pole assembly in an installed state;

FIG. 3 is an exploded view of a battery pack output pole assembly;

FIG. 4 is a schematic view of an insulating assembly;

FIG. 5 is a front view of the insulation assembly;

fig. 6 is a schematic top view of an insulation assembly.

Description of reference numerals:

1: insulating base, 2: insulating cover, 21: main body portion, 22: bent portion, 23: first escape portion, 231: first via, 232: insulating elastic member A, 233 fixed end of insulating elastic member A, 234 free end of insulating elastic member A, 24 second relief portion, 241 second through hole, 242 insulating elastic member B,243 fixed end of insulating elastic member B, 244 free end of insulating elastic member B, 3 module bus bar, 4 tab bus bar, 5 connecting member, 51: horizontal portion, 52: vertical portion, 6: first fixing member, 7: second fixing member, 100: an insulating assembly.

Detailed Description

The present invention is described in detail with reference to the following specific examples, but the present invention is not limited to the following examples.

Example (b):

as shown in fig. 1, 2 and 3, a battery pack output electrode assembly includes a module busbar 3, a tab busbar 4 and a connecting member 5, wherein the connecting member 5 includes a horizontal portion 51 and a vertical portion 52, the horizontal portion 51 and the vertical portion 52 jointly form an L-shaped structure, the end of the tab busbar 4 is bent, the end of the tab busbar 4 is electrically connected to the vertical portion 52 through a first fixing member 6, and the module busbar 3 is electrically connected to the horizontal portion 51 through a second fixing member 7.

As shown in fig. 3 and 4, the battery pack output electrode assembly further includes an insulating assembly 100, the insulating assembly 100 includes an insulating base 1 and an insulating cover 2, the insulating cover 2 at least includes a main body portion 21 and two bending portions 22, the main body portion 21 and the two bending portions 22 jointly form a "U" shaped structure, and the two bending portions 22 are respectively connected with two ends of the insulating base 1 to form a cavity for accommodating the connecting member 5; the connecting piece 5 is arranged in a cavity formed by the insulating base 1 and the insulating cover 2, and the horizontal part 51 or the vertical part 52 is connected with the insulating base 1; a first escape portion 23 for attaching and detaching the first fixing member 6 is provided at a position of the main body portion 21 corresponding to the first fixing member 6.

As shown in fig. 5, the first escape portion 23 includes a first through hole 231. The first avoiding portion 23 further includes an insulating elastic member a232, the insulating elastic member a232 is a sheet structure, a fixed end 233 of the insulating elastic member a is connected with the main body portion 21, and a free end 234 of the insulating elastic member a is suspended in the first through hole 231.

The single first escape portion 23 includes eight insulating elastic members a232, and the insulating elastic members a232 have a fan shape.

The fixed ends 233 of the respective insulating elastic members a of the single first escape portion 23 are distributed along the circumference of the first through hole 231; the free end 234 of each insulating elastic member a of the single first escape portion 23 extends axially toward the first through hole 231.

The insulating base 1 and the insulating cover 2 are integrally formed.

As shown in fig. 3, 4 and 6, a second escape portion 24 for attaching and detaching the second fixing member 7 is provided at a position corresponding to the second fixing member 7 at one of the bent portions 22.

The second escape portion 24 includes a second through hole 241.

The second avoiding portion 24 further includes an insulating elastic member B242, the insulating elastic member B242 is a sheet-shaped structure, a fixed end 243 of the insulating elastic member B is connected to the bending portion 22 provided with the second avoiding portion 24, and a free end 244 of the insulating elastic member B is suspended in the second through hole 241.

The single second escape portion 24 includes at least two insulating elastic members B242, and the insulating elastic members B242 have a fan shape.

The fixed ends 243 of the insulating elastic members B of the single second escape part 24 are distributed along the circumference of the second through hole 241; the free end 244 of each insulating elastic member B of the single second escape portion 24 extends axially toward the second through hole 241.

The above description is only for some specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. The protection scope of the present invention is subject to the protection scope of the claims.

Claims

1. The utility model provides a group battery output utmost point subassembly, includes module busbar (3) and utmost point ear busbar (4), its characterized in that still includes connecting piece (5), connecting piece (5) include horizontal part (51) and vertical portion (52) and horizontal part (51) and vertical portion (52) constitute L shape structure jointly, and utmost point ear busbar (4) are connected with vertical portion (52) electricity, and module busbar (3) are connected with horizontal part (51) electricity, or utmost point busbar (4) are connected with horizontal part (51) electricity, and module busbar (3) are connected with vertical portion (52) electricity.

2. A battery pack output pole assembly according to claim 1, wherein the tab bus bar (4) is electrically connected to the vertical portion (52) through a first fixing member (6), the module bus bar (3) is electrically connected to the horizontal portion (51) through a second fixing member (7), or the tab bus bar (4) is electrically connected to the horizontal portion (51) through the first fixing member (6), and the module bus bar (3) is electrically connected to the vertical portion (52) through the second fixing member (7).

3. The battery pack output pole assembly according to claim 2, further comprising an insulating assembly (100), wherein the insulating assembly (100) comprises an insulating base (1) and an insulating cover (2), the insulating cover (2) at least comprises a main body portion (21) and two bending portions (22), the main body portion (21) and the two bending portions (22) jointly form a "U" -shaped structure, and the two bending portions (22) are respectively connected with two ends of the insulating base (1) to form a cavity for accommodating the connecting member (5); the connecting piece (5) is arranged in a cavity formed by the insulating base (1) and the insulating cover (2), and the horizontal part (51) or the vertical part (52) is connected with the insulating base (1); at least one first escape part (23) for detaching and attaching the first fixing member (6) is provided at a position of the main body part (21) corresponding to the first fixing member (6).

4. A battery pack output pole assembly according to claim 3, wherein the first relief (23) comprises a first through hole (231).

5. A battery pack output pole assembly according to claim 3, wherein the first escape portion (23) further comprises an insulating elastic member a (232), the insulating elastic member a (232) is a sheet-like structure, a fixed end (233) of the insulating elastic member a is connected with the main body portion (21), and a free end (234) of the insulating elastic member a is suspended in the first through hole (231).

6. A battery pack output pole assembly according to claim 5, wherein a first relief portion (23) comprises at least two insulating elastic members A (232), said insulating elastic members A (232) being fan-shaped.

7. A battery pack output pole assembly according to claim 3, wherein the insulator base (1) and the insulator cap (2) are integrally formed.

8. A battery pack output pole assembly according to claim 3, wherein at least one second escape portion (24) for detaching the second fixing member (7) is provided at a position corresponding to one of the bent portions (22) and the second fixing member (7).

9. A battery pack output pole assembly as claimed in claim 8, wherein said second relief (24) comprises a second through hole (241).

10. The battery pack output pole assembly according to claim 9, wherein the second escape portion (24) further comprises an insulating elastic member B (242), the insulating elastic member B (242) has a sheet-like structure, a fixed end (243) of the insulating elastic member B is connected to the bent portion (22) provided with the second escape portion (24), and a free end (244) of the insulating elastic member B is suspended in the second through hole (241).

11. A battery pack output pole assembly as claimed in claim 10, wherein a second relief portion (24) comprises at least two insulating elastic members B (242), said insulating elastic members B (242) being fan-shaped.

12. A battery comprising a battery output pole assembly according to any of claims 1 to 11.