CN213988985U

CN213988985U - Lithium battery protection board

Info

Publication number: CN213988985U
Application number: CN202023090264.0U
Authority: CN
Inventors: 吴林青
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-17
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a lithium battery protection board, which comprises a housin, lid fits access cover and radiator on the casing, the casing includes the bottom plate and locates four curb plates on the bottom plate, the bottom plate forms a holding tank that is used for holding the lithium cell with four curb plates, the bottom plate is equipped with the first recess with radiator matched with towards holding tank one end, the bottom plate is equipped with the second recess corresponding with first recess from keeping away from holding tank one end, the bottom plate still is equipped with a plurality of through-holes that are located between first recess and the second recess, the radiator is equipped with a plurality of corresponding fin with a plurality of through-holes towards second recess one end. The utility model discloses a lithium cell bottom and radiator butt contact for the heat conduction that the lithium cell gived off gives the radiator, and dispels the heat through the fin of radiator, and the fin part is arranged in the second recess of the bottom plate of casing, and the second recess communicates with each other with the outside, makes the radiating effect better, has increased the radiating efficiency of lithium cell, improves the life of lithium cell.

Description

Lithium battery protection board

Technical Field

The utility model belongs to the technical field of the lithium cell, in particular to lithium cell protection shield.

Background

The lithium battery is a primary battery which takes lithium metal or lithium alloy as a negative electrode material and uses a non-aqueous electrolyte solution, is different from a rechargeable battery, namely a lithium ion battery and a lithium ion polymer battery, and is used as an energy battery with high reaction efficiency, strong safety and small volume, the application is more and more extensive, the rapid development of power lithium batteries in recent years has considerable breakthrough in both production process and material technology improvement or price advantage, and therefore, the lithium battery also lays a solid foundation for multiple series. The era of replacing lead-acid batteries is more and more recent. The market occupation rate of electric bicycles and backup power supplies is naturally also beginning to be greatly expanded, which is a non-repudiatable fact. For the safety and life of the battery, the lithium battery is naturally not protected effectively, and the lithium battery protection board is one of the most important components in the battery pack.

Present lithium battery protection board puts into the back at the lithium cell because do not have heat radiation structure etc. for lithium cell radiating efficiency is low, can influence lithium cell life, takes place danger even.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a can solve the lithium cell protection shield of above-mentioned problem.

The utility model provides a lithium battery protection board, includes the casing, covers and fits access cover and radiator on the casing, the casing includes the bottom plate and locates four curb plates on the bottom plate, the bottom plate is with four the curb plate forms a holding tank that is used for holding the lithium cell, the bottom plate orientation holding tank one end be equipped with radiator matched with first recess, the bottom plate is from keeping away from holding tank one end be equipped with the corresponding second recess of first recess, the bottom plate still is equipped with and is located first recess with a plurality of through-holes between the second recess, the radiator orientation second recess one end is equipped with a plurality ofly and a plurality of the corresponding fin of through-hole, it is a plurality of the fin passes to correspond the through-hole in the second recess.

Further, a condensing system surrounding the lithium battery is arranged in the accommodating groove.

Furthermore, the two ends of the access cover are respectively provided with a clamping strip, and the two corresponding side plates are respectively provided with a buckle corresponding to the clamping strip.

Furthermore, the surface of one end, facing the accommodating groove, of the radiator is provided with a heat conducting film.

Further, the heat conduction membrane is a graphene heat conduction membrane.

Compared with the prior art, the utility model provides a lithium battery protection board passes through lithium cell bottom and radiator butt contact for the heat conduction that the lithium cell gived off gives the radiator, and dispels the heat through the fin of radiator, and the fin part is arranged in the second recess of the bottom plate of casing, and the second recess communicates with each other with the outside, makes the radiating effect better, has increased the radiating efficiency of lithium cell, improves the life of lithium cell, and reduces the emergence of dangerous accident.

Drawings

Fig. 1 is the utility model provides a structural schematic diagram of lithium battery protection shield.

Fig. 2 is a schematic structural diagram of the heat sink of fig. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to fig. 2, it is a schematic structural diagram of a lithium battery protection plate provided by the present invention. A lithium battery protection board comprises a shell 10, an access cover 20 covering the shell 10 and a heat radiator 30, the housing 10 includes a bottom plate 11 and four side plates 12 disposed on the bottom plate 11, the bottom plate 11 and the four side plates 12 form a receiving groove 13 for receiving the lithium battery 40, the end of the bottom plate 11 facing the accommodating groove 13 is provided with a first groove 111 matched with the heat sink 30, the bottom plate 11 is provided with a second groove 112 corresponding to the first groove 111 from the end far away from the accommodating groove 13, the base plate 11 is further provided with a plurality of through holes 113 between the first groove 111 and the second groove 112, the heat sink 30 has a plurality of heat dissipation fins 31 corresponding to the plurality of through holes 113 at an end facing the second groove 112, and the plurality of heat dissipation fins 31 pass through the corresponding through holes 113 and are disposed in the second groove 112. When lithium cell 40 needs to be placed, open access cover 20, later put into bottom plate 11 with lithium cell 40 in the holding tank 13 that four curb plates 12 formed, lithium cell 40 places after steady, lithium cell 40's bottom is with radiator 30 butt contact, make the heat conduction that lithium cell 40 gived off give radiator 30, and dispel the heat through radiator 30's fin 31, fin 31 part is arranged in casing 10's bottom plate 11's second recess 112, and second recess 112 is communicating with the outside, make the radiating effect better, lithium cell 40's radiating efficiency has been increased, improve lithium cell 40's life, and reduce the emergence of dangerous accident.

The accommodating groove 13 is provided therein with a condensing system 131 surrounding the lithium battery 40. The radiator 30 conducts most of the heat to the bottom of the lithium battery 40, and the heat dissipated by a part of the lithium battery 40 is further dissipated by surrounding the outer side wall of the lithium battery 40 through the condensing system 131, so that the heat dissipation efficiency of the lithium battery 40 is greatly increased, and the service life of the lithium battery 40 is prolonged.

The two ends of the access cover 20 are respectively provided with a clamping strip 21, and the two corresponding side plates 12 are respectively provided with a buckle 121 corresponding to the clamping strip 21. After the access cover 20 covers the four side plates 12 of the housing 10, the corresponding upper clamping strip 21 is fastened by the fastening handle 121 for fixing, so that the access cover 20 is firmly fixed on the four side plates 12 of the housing 10, the falling of the access cover 20 from the four side plates 12 of the housing 10 due to external force is reduced, and the falling of the lithium battery 40 from the accommodating groove 13 of the housing 10 is reduced.

The heat sink 30 has a heat conductive film (not shown) on a surface facing the receiving groove 13. The heat-conducting film (not marked in the figure) is a graphene heat-conducting film. Further, the heat of the lithium battery 40 is conducted to the radiator 30, and the heat dissipation is accelerated through the radiator 30, so that the heat dissipation efficiency of the lithium battery 40 is greatly improved.

Compared with the prior art, the utility model provides a lithium cell 40 protection board passes through lithium cell 40 bottom and radiator 30 butt contact for the heat conduction that lithium cell 40 gived off gives radiator 30, and dispel the heat through radiator 31 of radiator 30, radiator 31 part is arranged in the second recess 112 of the bottom plate 11 of casing 10, and second recess 112 is communicating with the outside, make the radiating effect better, the radiating efficiency of lithium cell 40 has been increased, improve lithium cell 40's life, and reduce the emergence of dangerous accident.

The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.

Claims

1. The utility model provides a lithium battery protection board, a serial communication port, lithium battery protection board includes the casing, covers and fits access cover and radiator on the casing, the casing includes the bottom plate and locates four curb plates on the bottom plate, bottom plate and four the curb plate forms a holding tank that is used for holding the lithium cell, the bottom plate orientation holding tank one end be equipped with radiator matched with first recess, the bottom plate is from keeping away from holding tank one end be equipped with the corresponding second recess of first recess, the bottom plate still is equipped with and is located first recess with a plurality of through-holes between the second recess, the radiator orientation second recess one end is equipped with a plurality ofly and a plurality of the corresponding fin of through-hole, it is a plurality of the fin passes to correspond the through-hole in the second recess.

2. The lithium battery protection plate as claimed in claim 1, wherein: and a condensation system surrounding the lithium battery is arranged in the accommodating tank.

3. The lithium battery protection plate as claimed in claim 1, wherein: the two ends of the access cover are respectively provided with a clamping strip, and the two corresponding side plates are respectively provided with a buckle corresponding to the clamping strips.

4. The lithium battery protection plate as claimed in claim 1, wherein: the radiator is provided with a heat conducting film towards one end surface of the accommodating groove.

5. The lithium battery protection plate as claimed in claim 4, wherein: the heat conduction membrane is a graphene heat conduction membrane.