CN219498049U

CN219498049U - Battery box for battery module

Info

Publication number: CN219498049U
Application number: CN202320790459.0U
Authority: CN
Inventors: 刘晓辉; 吕四红; 邵洋洋; 刘晓军
Original assignee: Shandong Lvneng Huanyu Low Carbon Technology Co ltd
Current assignee: Shandong Lvneng Huanyu Low Carbon Technology Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-08-08
Anticipated expiration: 2033-04-11

Abstract

The application provides a battery box for battery module, including box (1) and case lid (2), opening (11) of box (1) are offered in the top, opening (11) one side is provided with division board (3) in box (1), division board (3) are on a parallel with the bottom surface of box (1), be connected with the lateral wall of box (1), and leave the distance between opening (11), upward protruding stretching has first limiting plate (31) on division board (3), protruding stretching has second limiting plate (32) downwards below of division board (3), the upper end of first limiting plate (31) and the medial surface butt of case lid (2), the lower extreme height of second limiting plate (32) and battery module (5) high size fit. The battery box for the battery module can prevent the battery protection plate from being damaged due to the influence of temperature change of the battery module and extrusion of the box cover, and further improves the safety and service life of the battery.

Description

Battery box for battery module

Technical Field

The utility model relates to the technical field of battery safety protection, in particular to a battery box for a battery module.

Background

At present, a battery module is almost formed by combining a plurality of small battery units in a production mode, and a battery protection plate is usually connected to the battery module to protect the battery module and avoid overcharge, overdischarge, overcurrent or short circuit of the battery module. At present, battery manufacturers directly place battery protection boards on battery modules for connection and assembly, so that the components of the battery protection boards are easy to malfunction or damage due to high temperature generated during use of the battery modules, and further the battery is caused to be overcharged or overdischarged unintentionally, thereby causing potential safety hazards or reducing the service life of the battery modules. The applicant has thus developed a battery case for a battery module for isolating the battery module from a battery protection plate, which are separately fixed, at the time of production and assembly of the battery module, to avoid the above-mentioned problems.

Disclosure of Invention

In order to solve the technical problems in the prior art, the utility model provides a battery box for a battery module.

The technical scheme of the utility model is as follows:

the utility model provides a battery box for battery module, includes box and case lid, and the opening of box is offered in the top, and opening one side is provided with the division board in the box, and the division board is on a parallel with the bottom surface of box, is connected with the lateral wall of box, and leaves the distance between with the opening, and the upper surface of division board upwards protrudes to stretch has first limiting plate, and the lower face of division board downwards protrudes to stretch has the second limiting plate, and the upper end of first limiting plate and the medial surface butt of case lid, the lower extreme height of second limiting plate and the high size cooperation of battery module. The battery protection board is arranged on the isolation board, and a distance is kept between the battery protection board and the battery module and the case cover, so that the battery protection board is prevented from being damaged due to the influence of temperature change of the battery module and the extrusion of the case cover.

Further, the division board is the strip shaped plate, and the first connecting portion of downwardly extending is respectively perpendicularly extended at the both ends of division board, has seted up first connecting hole on the first connecting portion, and the second connecting hole has been seted up to the position that the box lateral wall corresponds first connecting hole, and the division board passes through screw connection first connecting hole and second connecting hole and fixes in the box.

Alternatively, the spacer may be a cross-shaped plate with a larger bearing surface. The four ends of the isolation plate respectively extend downwards to form second connecting parts vertically, third connecting holes are formed in the second connecting parts, fourth connecting holes are formed in positions, corresponding to the third connecting holes, of the side walls of the box body, and the isolation plate is fixed in the box body through the fact that the third connecting holes and the fourth connecting holes are connected through screws.

Further, a fixing structure for fixing the battery protection plate is arranged on the isolation plate.

Preferably, the fixing structure is a buckle structure and is clamped with the edge of the battery protection board, so that the battery protection board is convenient to mount and dismount.

Further, the bottom fixedly connected with in the box bears the weight of the seat of battery module, bears the top surface of seat and has seted up a plurality of fixed orifices of fixing battery module.

Further, a wire outlet hole is formed in the side wall of one side of the box body, and a bus of the battery module penetrates out of the wire outlet hole.

Further, the top of four lateral walls of box is buckled and is had first buckling parts, and the protruding second buckling parts that stretch of the same direction on the perpendicular case lid surface in four sides of case lid, and the surface laminating butt joint of first buckling part and the internal surface of second buckling part, case lid lock are on the box.

According to the battery box for the battery module, the isolation plate is arranged in the battery box, a distance is kept between the isolation plate and the battery module and between the isolation plate and the battery box cover, and when the battery protection plate is installed on the isolation plate, the battery protection plate is not in direct contact with the battery module and the battery box cover, so that damage caused by the influence of temperature change of the battery module and extrusion of the battery box cover is avoided, and further safety and service life of a battery are improved.

Drawings

In the drawings:

fig. 1 is an exploded view of a battery box according to a first embodiment of the present utility model;

fig. 2 is a schematic sectional view of a battery box according to a first embodiment of the present utility model;

fig. 3 is an exploded view of a battery box according to a second embodiment of the present utility model.

The components represented by the reference numerals in the figures are:

1. a case; 11. an opening; 12. a second connection hole; 13. a first buckling part; 14. a fourth connection hole; 2. a case cover; 21. a second buckling part; 3. a partition plate; 31. a first limiting plate; 32. a second limiting plate; 33. a first connection portion; 34. a first connection hole; 35. a fixed structure; 36. a second connecting portion; 37. a third connection hole; 4. a bearing seat; 41. a fixing hole; 5. a battery module; 6. a battery protection plate; 7. and a wire outlet hole.

Detailed Description

Embodiment one:

referring to fig. 1 and 2, a first embodiment of the present utility model provides a battery box for a battery module, which includes a box body 1 and a box cover 2, wherein an opening 11 of the box body 1 is formed at the top, a partition plate 3 is disposed at one side of the opening 11 in the box body 1, the partition plate 3 is parallel to the bottom surface of the box body 1, and is connected with the side wall of the box body 1, a distance is left between the partition plate and the opening 11, a first limiting plate 31 protrudes upward from the upper surface of the partition plate 3, a second limiting plate 32 protrudes downward from the lower surface of the partition plate 3, the upper end of the first limiting plate 31 is abutted to the inner side surface of the box cover 2, and the lower end of the second limiting plate 32 is matched with the height of the battery module 5 in size, i.e. after the battery is assembled, the lower end of the second limiting plate 32 is abutted to the battery module 5. The battery protection plate 6 is arranged on the isolation plate 3, the first limiting plate 31 of the isolation plate 3 is abutted against the case cover 2, and a space is supported, so that a sufficient distance is reserved between the battery protection plate 6 and the case cover 2, and the battery protection plate 6 is prevented from being damaged due to the extrusion of the case cover 2; the second limiting plate 32 of the isolation plate 3 abuts against the battery module 5, so that the battery protection plate 6 is not in direct contact with the battery module 5, and damage or service life reduction caused by the influence of the temperature of the battery module 5 is avoided.

Preferably, the first limiting plate 31 and the second limiting plate 32 are respectively two and are arranged at two sides of the battery protection plate 6. In addition, the first and second limiting plates 31 and 32 are preferably perpendicular to the upper and lower surfaces of the partition plate 3, respectively.

Further, in this embodiment, the isolation board 3 is a strip-shaped board, two ends of the isolation board 3 respectively extend downwards perpendicularly to form a first connecting portion 33, a first connecting hole 34 is formed in the first connecting portion 33, a second connecting hole 12 is formed in a position, corresponding to the first connecting hole 34, of the side wall of the box body 1, and the isolation board 3 is fixed in the box body 1 by connecting the first connecting hole 34 and the second connecting hole 12 through screws (not shown in the figure).

Further, a fixing structure 35 for fixing the battery protection plate 6 is provided on the separator 3. Preferably, the fixing structure 35 is a buckle structure, and is clamped with two side edges of the battery protection board 6, so that the battery protection board 6 can be conveniently and fixedly installed and dismounted. Preferably, the number of the fixing structures 35 is two.

Further, a bearing seat 4 for bearing the battery module 5 is arranged at the bottom in the box body 1 and is fixedly connected with the bottom surface of the box body 1, and a plurality of fixing holes 41 for fixing the battery module 5 are formed in the top surface of the bearing seat 4.

Further, a wire outlet hole 7 is formed in a side wall of one side of the case 1, and a bus of the battery module 5 penetrates out of the wire outlet hole 7.

Further, the top of four lateral walls of the box body 1 is bent to form a first buckling part 13, four sides of the box cover 2 are protruded and extended to form a second buckling part 21 in the same direction perpendicular to the surface of the box cover 2, the outer surface of the first buckling part 13 is abutted to the inner surface of the second buckling part 21 in a fitting way, and the box cover 2 is buckled on the box body 1.

Embodiment two:

referring to fig. 3, the second embodiment is basically the same as the first embodiment except that the isolation plate 3 is a cross-shaped plate with a larger bearing surface. The four ends of the isolation plate 3 respectively and vertically extend downwards to form second connecting parts 36, third connecting holes 37 are formed in the second connecting parts 36, fourth connecting holes 14 are formed in the side walls of the box body 1 at positions corresponding to the third connecting holes 37, and the isolation plate 3 is connected with the third connecting holes 37 and the fourth connecting holes 14 through screws (not shown in the figure) and fixed in the box body 1.

In addition, the number of the first limiting plates 31 and the second limiting plates 32 is four, respectively.

According to the battery box for the battery module, the isolation plate 3 is arranged in the battery box, a distance is kept between the isolation plate 3 and the battery module 5 and between the isolation plate 3 and the battery box cover 2, and when the battery protection plate 6 is installed on the isolation plate 3, the battery protection plate is not in direct contact with the battery module 5 and the battery box cover 2, so that damage caused by the influence of temperature change of the battery module 3 and the extrusion of the battery box cover 2 is avoided, and further the safety and the service life of a battery are improved.

Claims

1. The utility model provides a battery box for battery module, includes box (1) and case lid (2), its characterized in that, opening (11) of box (1) are seted up in the top, in box (1) opening (11) one side is provided with division board (3), division board (3) are on a parallel with the bottom surface of box (1), with the lateral wall of box (1) is connected, and with leave the distance between opening (11), the upper surface of division board (3) upwards protrudes and stretches there is first limiting plate (31), the lower face of division board (3) downwards protrudes and stretches there is second limiting plate (32), the upper end of first limiting plate (31) with the medial surface butt of case lid (2), the lower extreme height of second limiting plate (32) and battery module (5) high size cooperation.

2. A battery case for a battery module according to claim 1, wherein the separator (3) is a strip-shaped plate.

3. The battery box for the battery module according to claim 2, wherein the two ends of the isolation plate (3) respectively extend downwards and vertically to form a first connecting portion (33), a first connecting hole (34) is formed in the first connecting portion (33), a second connecting hole (12) is formed in a position, corresponding to the first connecting hole (34), of the side wall of the box body (1), and the isolation plate (3) is connected with the first connecting hole (34) and the second connecting hole (12) through screws to be fixed in the box body (1).

4. The battery case for a battery module according to claim 1, wherein the separator (3) is a cross-shaped plate.

5. The battery box for the battery module according to claim 4, wherein the four ends of the isolation plate (3) respectively extend downwards and vertically to form second connecting portions (36), third connecting holes (37) are formed in the second connecting portions (36), fourth connecting holes (14) are formed in positions, corresponding to the third connecting holes (37), of the side walls of the box body (1), and the isolation plate (3) is fixedly arranged in the box body (1) through screw connection of the third connecting holes (37) and the fourth connecting holes (14).

6. A battery case for a battery module according to any one of claims 1 to 5, wherein the separator (3) is provided thereon with a fixing structure (35) for fixing the battery protection plate (6).

7. The battery box for the battery module according to claim 6, wherein the fixing structure (35) is a fastening structure, and is fastened to the edge of the battery protection plate (6).

8. The battery box for the battery module according to claim 1, wherein a bearing seat (4) for bearing the battery module (5) is fixedly connected to the bottom in the box body (1), and a plurality of fixing holes (41) for fixing the battery module (5) are formed in the top surface of the bearing seat (4).

9. The battery box for the battery module according to claim 1, wherein a wire outlet hole (7) is formed in a side wall of the box body (1).

10. The battery box for the battery module according to claim 1, wherein the top parts of the four side walls of the box body (1) are bent to form first buckling parts (13), the four sides of the box cover (2) are provided with second buckling parts (21) protruding in the same direction perpendicular to the surface of the box cover (2), and the outer surfaces of the first buckling parts (13) are in fit and butt joint with the inner surfaces of the second buckling parts (21).