CN218569108U

CN218569108U - Lithium battery module with high-temperature protection function

Info

Publication number: CN218569108U
Application number: CN202222817471.4U
Authority: CN
Inventors: 陈海同
Original assignee: Jiangsu Journey Electronic Technology Co ltd
Current assignee: Taizhou Tianke Power System Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-03-03
Anticipated expiration: 2032-10-26

Abstract

The utility model relates to a lithium battery module technical field especially relates to a lithium battery module with high temperature safeguard function, the power distribution box comprises a box body, bottom in the box is fixed with the negative plate, and the top one end of negative plate is fixed with the connecting rod, the lithium cell that the equidistance distributes is placed to the top other end of negative plate, and the outside of lithium cell is provided with the mount, the both ends of box are all pegged graft and are fixed with fixed pipe, and install radiator fan in one of them fixed pipe. The utility model places the lithium batteries in the fixing frame, limits the placing positions of the plurality of lithium batteries laterally, and limits the top and bottom positions of the plurality of lithium batteries by the negative plate and the positive plate, so that the lithium batteries can not be dislocated and toppled over; blow to the box through radiator fan, make the inside air of box accelerate with the speed of outside air replacement, blow out the air in the box from the fixed pipe of the other end, improve the radiating efficiency in the box.

Description

Lithium battery module with high-temperature protection function

Technical Field

The utility model relates to a lithium battery module technical field especially relates to a lithium battery module with high temperature safeguard function.

Background

Lithium batteries are batteries using lithium metal or lithium alloy as a negative electrode material and using a non-aqueous electrolyte solution, and when the lithium batteries are used for providing electric energy for high-power application, a plurality of batteries are often required to be connected in series and in parallel to form a battery pack so as to meet the electric energy supply requirement.

Current lithium battery module lacks even effectual temperature regulating device, and its inside produced a large amount of heats can not get the bulk that dispels and can cause the module to heat up rapidly when using for a long time, and the mode that is in under the high temperature for a long time can lead to the circuit ageing, and the short circuit burns out the emergence of phenomenon such as even, has seriously influenced the life of battery module.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the lithium battery module who provides has high temperature safeguard function.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a lithium battery module with high temperature safeguard function, includes the box, bottom in the box is fixed with the negative plate, and the top one end of negative plate is fixed with the connecting rod, the lithium cell that the equidistance distributes is placed to the top other end of negative plate, and the outside of lithium cell is provided with the mount, the both ends of box are all pegged graft and are fixed with fixed pipe, and install radiator fan in one of them fixed pipe, the top of box is provided with the top cap, and the top both ends of top cap are all pegged graft and are fixed with the electricity spliced pole, the bottom of top cap is provided with the positive plate.

Preferably, the inner walls of the two sides of the fixing frame are provided with grooves distributed equidistantly, the grooves are matched with the lithium batteries, and the fixing frame is fixed on the inner wall of the box body.

Preferably, the dustproof net is fixed at one end of the annular inner wall of the fixed pipe, which is far away from the box body.

Preferably, the top of the outer wall of each of the two ends of the box body is fixed with a first connecting block, the outer wall of each of the two ends of the top cover is fixed with a second connecting block, and the first connecting blocks and the second connecting blocks are fixedly connected through bolts and nuts.

Preferably, the top of the connecting rod abuts against an electrical post near one end of the heat dissipation fan.

Preferably, the bottom of the positive plate is abutted against the top of the lithium battery, and the top of the positive plate is fixedly connected with the bottom of the electric connection post at one end far away from the heat dissipation fan.

The utility model has the advantages that:

1. the lithium batteries are placed in the fixing frame, the placing positions of the lithium batteries are limited on the side faces, and the top and bottom positions of the lithium batteries are limited by the negative plates and the positive plates, so that the lithium batteries cannot be misplaced or toppled;

2. blow to the box through radiator fan, make the inside air of box accelerate with the speed of outside air replacement, blow out the air in the box from the fixed pipe of the other end, improve the radiating efficiency in the box.

Drawings

Fig. 1 is a schematic view of an overall structure of a lithium battery module with a high temperature protection function according to the present invention;

fig. 2 is a schematic diagram of an internal structure of a box body of a lithium battery module with a high temperature protection function according to the present invention;

fig. 3 is a schematic view of a fixing frame structure of a lithium battery module with a high temperature protection function according to the present invention;

fig. 4 is the utility model provides a top cap bottom structure sketch map of lithium battery module with high temperature protect function.

In the figure: 1. a box body; 2. a negative plate; 3. a connecting rod; 4. a lithium battery; 5. a fixed mount; 6. a groove; 7. a fixed tube; 8. a heat radiation fan; 9. a first connection block; 10. a top cover; 11. an electrical connector; 12. a positive plate; 13. and a second connecting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example (b):

referring to fig. 1-4, a lithium battery module with a high temperature protection function comprises a box body 1, wherein a negative plate 2 is fixed at the bottom in the box body 1, a connecting rod 3 is fixed at one end of the top of the negative plate 2, and the negative electrodes at the bottom of a lithium battery 4 are connected in parallel in the box body 1 through the negative plate 2;

lithium batteries 4 distributed equidistantly are placed at the other end of the top of the negative plate 2, fixing frames 5 are arranged outside the lithium batteries 4, grooves 6 distributed equidistantly are formed in the inner walls of the two sides of each fixing frame 5, the grooves 6 are matched with the lithium batteries 4, the fixing frames 5 are fixed on the inner wall of the box body 1, and the lithium batteries 4 are limited by the fixing frames 5;

fixing pipes 7 are fixedly inserted at two ends of the box body 1, dust screens are fixed at one ends, far away from the box body 1, of the annular inner walls of the fixing pipes 7, a heat dissipation fan 8 is installed in one fixing pipe 7, the heat dissipation fan 8 is used for blowing air into the box body 1 for heat dissipation, and the dust in the air is filtered by the dust screens;

a top cover 10 is arranged at the top of the box body 1, electric connection posts 11 are fixedly inserted at two ends of the top cover 10, the top of the connecting rod 3 is abutted to the electric connection posts 11 at one end close to the cooling fan 8, and the negative plate 2 is connected with the electric connection posts 11 through the connecting rod 3 so as to be conveniently connected with an external lead;

the bottom of the top cover 10 is provided with a positive plate 12, the bottom of the positive plate 12 is abutted against the top of the lithium battery 4, the top of the positive plate 12 is fixedly connected with the bottom of an electric connecting column 11 at one end far away from the cooling fan 8, the positive plate 12 is connected with the positive electrode at the top of the lithium battery 4, and the positive plate 12 is connected with an external lead through the electric connecting column 11;

the top of the outer wall of each of two ends of the box body 1 is fixed with a first connecting block 9, the outer wall of each of two ends of the top cover 10 is fixed with a second connecting block 13, and the first connecting blocks 9 and the second connecting blocks 13 are fixedly connected through bolts and nuts.

The working principle is as follows:

during assembly, the lithium batteries 4 are placed in the fixing frame 5, the placing positions of the plurality of lithium batteries 4 on the fixing frame 5 are limited laterally, then the top cover 10 is covered on the top of the box body 1, the positive plate 12 is abutted to the top of the lithium batteries 4, the positions of the tops and the bottoms of the plurality of lithium batteries 4 are limited by the negative plate 2 and the positive plate 12, and the first connecting block 9 and the second connecting block 13 are fixedly connected through bolts and nuts;

during operation, the heat radiation fan 8 blows air into the box body 1, hot air in the box body 1 is blown out from a gap between the lithium battery 4 and the other end fixing pipe 7 by wind power, and the hot air in the box body 1 can be rapidly discharged.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a lithium battery module with high temperature safeguard function, includes box (1), its characterized in that, bottom in box (1) is fixed with negative plate (2), and the top one end of negative plate (2) is fixed with connecting rod (3), lithium cell (4) that the equidistance distributes are placed to the top other end of negative plate (2), and the outside of lithium cell (4) is provided with mount (5), the both ends of box (1) are all pegged graft and are fixed with fixed pipe (7), and install radiator fan (8) in one of them fixed pipe (7), the top of box (1) is provided with top cap (10), and the top both ends of top cap (10) all peg graft and are fixed with electricity and connect post (11), the bottom of top cap (10) is provided with positive plate (12).

2. The lithium battery module with the high-temperature protection function according to claim 1, wherein the inner walls of the two sides of the fixing frame (5) are provided with grooves (6) distributed at equal intervals, the grooves (6) are matched with the lithium batteries (4), and the fixing frame (5) is fixed on the inner wall of the box body (1).

3. The lithium battery module with the high-temperature protection function as claimed in claim 1, wherein a dust screen is fixed on one end of the annular inner wall of the fixing tube (7) away from the box body (1).

4. The lithium battery module with the high-temperature protection function as claimed in claim 1, wherein the first connecting block (9) is fixed on the top of the outer wall of each of the two ends of the box body (1), the second connecting block (13) is fixed on the outer wall of each of the two ends of the top cover (10), and the first connecting block (9) and the second connecting block (13) are connected and fixed through bolts and nuts.

5. The lithium battery module with high temperature protection function as claimed in claim 1, wherein the top of the connecting rod (3) abuts against an electrical post (11) near one end of the heat dissipation fan (8).

6. The lithium battery module with the high-temperature protection function as claimed in claim 1, wherein the bottom of the positive plate (12) abuts against the top of the lithium battery (4), and the top of the positive plate (12) is fixedly connected with the bottom of the electric post (11) at the end far away from the heat dissipation fan (8).