CN217768512U

CN217768512U - Lithium power battery module with long cycle life for new energy automobile

Info

Publication number: CN217768512U
Application number: CN202221566154.3U
Authority: CN
Inventors: 李四横; 舒东; 祝庭林
Original assignee: Shenzhen Jinli New Energy Technology Co ltd
Current assignee: Shenzhen Jinli New Energy Technology Co ltd
Priority date: 2022-06-21
Filing date: 2022-06-21
Publication date: 2022-11-08
Anticipated expiration: 2032-06-21

Abstract

The utility model belongs to the technical field of new energy automobile, a new energy automobile high cycle life lithium power battery module, including the battery module shell, its characterized in that: the utility model discloses a battery module, including battery module shell, graphite alkene, battery module protection structure, battery module shell, battery module protection structure, the utility model discloses avoid avoiding the battery module because the heat dissipation is slow, lead to the inside heat accumulation of battery module shell, reduce the life of battery module, graphite alkene has extremely strong thermal diffusivity, coordinates the great promotion radiating efficiency of a plurality of fin, avoids in the car driving process, if the battery module shell is punctured by hard thing, leads to the battery module to leak electricity very easily, and then can't continue to use, this device provides battery module shell and anticollision protection shield duplicate protection for the battery module, improves the security of battery module greatly.

Description

Lithium power battery module with long cycle life for new energy automobile

Technical Field

The utility model belongs to the technical field of new energy automobile, concretely relates to new energy automobile high cycle life lithium power battery module.

Background

The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, has advanced technical principle, new technology and new structure and is generally mainly an electric automobile;

the lithium power battery module with the high cycle life of the existing new energy automobile on the market at present naturally dissipates heat, the heat dissipation is very slow, the heat accumulation inside the shell of the battery module is easily caused, the service life of the battery module is shortened, the lithium power battery module with the high cycle life of the existing new energy automobile on the market at present does not lack a protection device, and in the driving process of the automobile, if the shell of the battery module is punctured by a hard object, the battery module is easily subjected to electric leakage, and further the lithium power battery module cannot be continuously used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a new energy automobile high cycle life lithium power battery module, all be the natural heat dissipation with the current new energy automobile high cycle life lithium power battery module on the market that proposes in solving above-mentioned background, such heat dissipation is very slow, and lead to the inside long-pending heat of battery module shell easily, reduce the life of battery module, the current new energy automobile high cycle life lithium power battery module on the market does not lack protection device at present, at the car in-process of traveling, if the battery module shell is punctured by hard thing, lead to battery module electric leakage very easily, and then can't continue the problem of using.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a new energy automobile high cycle life lithium power battery module, includes the battery module shell, battery module structure is installed to the inside lower wall face of battery module shell, battery module structure includes two lower wall insulation boards, two a plurality of ternary lithium cells are installed respectively to the last wall of lower wall insulation board, and is a plurality of last wall insulation board is installed to ternary lithium cell's last wall, the circuit board is installed to the inside lower wall face of battery module shell, high-pressure detecting system is installed to the last wall of circuit board, battery management host system is installed to the last wall of circuit board, and from accuse module is installed to the last wall of circuit board, battery heat radiation structure is installed to the last wall of battery module shell, shell protection architecture is installed to the lower wall face of battery module shell.

Preferably, the battery heat radiation structure comprises a graphene heat radiation sleeve, a heat conduction copper sheet is installed on the upper wall surface of the graphene heat radiation sleeve, a heat conduction copper cover is installed on the upper wall surface of the heat conduction copper sheet, and a plurality of heat radiation fins are installed on the upper wall surface of the heat conduction copper cover.

Preferably, the shell protection structure comprises four guide posts, the lower end faces of the four guide posts are respectively sleeved with a limiting block, the outer wall faces of the four guide posts are respectively sleeved with a return spring, and the outer wall faces of the four guide posts are sleeved with an anti-collision protection plate.

Preferably, the anti-vibration sponge is installed on the lower wall surface of the battery module shell.

Preferably, the outer wall surface of the battery module shell is coated with a graphene heat dissipation coating.

Preferably, heat dissipation silicone grease is coated between the graphene heat dissipation sleeve and the heat conduction copper sheet.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses avoid avoiding the battery module because the heat dissipation is slow, lead to the inside accumulated heat of battery module shell, reduce the life of battery module, graphite alkene has extremely strong thermal diffusivity, the great promotion radiating efficiency of a plurality of fin of cooperation, avoid in the automobile driving process, if the battery module shell is punctured by hard thing, lead to the battery module electric leakage very easily, and then can't continue to use, this device provides battery module shell and anticollision protection shield duplicate protection for the battery module, improve the security of battery module greatly.

1. The utility model discloses a be provided with battery heat radiation structure, when ternary lithium cell generates heat, graphite alkene heat dissipation cover guides the heat to the heat conduction copper sheet on, through heat conduction copper lid and a plurality of fin with heat discharge, avoid the battery module because the heat dissipation is slow, lead to the inside long-pending heat of battery module shell, reduce the life of battery module, graphite alkene has extremely strong thermal diffusivity, cooperates the great promotion radiating efficiency of a plurality of fins.

2. The utility model discloses a be provided with shell protection architecture, when the anticollision protection shield receives the striking, the anticollision protection shield drives reset spring and follows four guide posts shrink, reduce the impact, when the striking is ended, reset spring drives the anticollision protection shield and resets along four guide posts, thereby utilize the antidetonation sponge to prevent that anticollision protection shield and battery module shell from producing the rigid contact and leading to battery module shell to receive violent impact, avoid in the automobile driving process, if the battery module shell is punctured by hard thing, lead to battery module electric leakage very easily, and then can't continue to use, this device provides battery module shell and anticollision protection shield duplicate protection for the battery module, improve the security of battery module greatly.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is the schematic diagram of the structure of the battery module casing of the present invention

Fig. 3 is a schematic view of the battery module of the present invention;

fig. 4 is a schematic view of a battery heat dissipation structure of the present invention;

fig. 5 is a schematic view of the protective structure of the housing of the present invention.

In the figure: 1. a battery module housing; 2. a lower wall insulating panel; 3. a ternary lithium battery; 4. an upper wall insulating plate; 5. a circuit board; 6. a main control module; 7. a slave control module; 8. a graphene heat dissipation sleeve; 9. a thermally conductive copper sheet; 10. a heat conductive copper cap; 11. a heat sink; 12. a guide post; 13. a limiting block; 14. a return spring; 15. an anti-collision protection plate; 16. an anti-seismic sponge; 17. high voltage detection system.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

the utility model provides a new energy automobile high cycle life lithium power battery module, including battery module shell 1, battery module structure is installed to the lower wall face of battery module shell 1 inside, battery module structure includes two lower wall insulation boards 2, a plurality of ternary lithium cell 3 are installed respectively to the last wall of two lower wall insulation boards 2, upper wall insulation board 4 is installed to the last wall of a plurality of ternary lithium cell 3, circuit board 5 is installed to the lower wall face of battery module shell 1 inside, high-pressure detecting system 17 is installed to the last wall of circuit board 5, battery management host module 6 is installed to the last wall of circuit board 5, from accuse module 7 is installed to the last wall of circuit board 5, battery heat radiation structure is installed to the last wall of battery module shell 1, shell protection architecture is installed to the lower wall of battery module shell 1.

In order to improve the heat dissipation performance of the ternary lithium batteries 3, in this embodiment, preferably, the battery heat dissipation structure includes a graphene heat dissipation sleeve 8, a heat conduction copper sheet 9 is installed on an upper wall surface of the graphene heat dissipation sleeve 8, a heat conduction copper cover 10 is installed on an upper wall surface of the heat conduction copper sheet 9, and a plurality of heat dissipation fins 11 are installed on an upper wall surface of the heat conduction copper cover 10, when the ternary lithium batteries 3 generate heat, the graphene heat dissipation sleeve 8 guides the heat to the heat conduction copper sheet 9, and the heat is discharged through the heat conduction copper cover 10 and the heat dissipation fins 11.

In order to prevent that a plurality of ternary lithium batteries 3 from receiving the collision, in this embodiment, preferably, shell protection structure includes four guide posts 12, the lower terminal surface of four guide posts 12 is equipped with stopper 13 respectively in the cover, the outer wall of four guide posts 12 is equipped with reset spring 14 respectively in the cover, the outer wall of four guide posts 12 is equipped with anticollision protection board 15 in the cover, when anticollision protection board 15 receives the striking, anticollision protection board 15 drives reset spring 14 along four guide posts 12 shrinkages, reduce the impact, when the striking is ended, reset spring 14 drives anticollision protection board 15 and resets along four guide posts 12, stopper 13 restriction anticollision protection board 15 removes.

In order to prevent the crash protection plate from making rigid contact with the battery module case, thereby causing the battery module case to be severely impacted, in the present embodiment, it is preferable that the lower wall surface of the battery module case 1 is mounted with an anti-vibration sponge 16.

In order to enhance the heat dissipation of the battery module case 1, in the present embodiment, the outer wall surface of the battery module case 1 is preferably coated with a graphene heat dissipation coating.

In order to make the graphene heat dissipation sleeve 8 fully contact with the heat conducting copper sheet 9, in this embodiment, it is preferable that a heat dissipation silicone grease is coated between the graphene heat dissipation sleeve 8 and the heat conducting copper sheet 9.

The utility model discloses a theory of operation and use flow: the battery module shell 1 is used for fixing a circuit board 5, the circuit board 5 is used for connecting a high-voltage detection system 17, a battery management main control module 6 and a slave control module 7, the high-voltage detection system 17 comprises a circuit breaker, a power control relay, a shunt, a high-voltage fuse and other connecting circuits, the battery management main control module 6 is used for fault diagnosis, safety control, SOC estimation, active equalization, functions such as function safety and the like, the slave control module 7 corresponds to respective corresponding modules, and auxiliary control is performed, the two lower wall insulation boards 2 and the upper wall insulation board 4 play roles of insulation protection and short circuit prevention, when the ternary lithium battery 3 generates heat, the heat is guided to the heat conducting copper sheet 9 by the graphene heat dissipation sleeve 8, the heat is discharged through the heat conducting copper cover 10 and the plurality of radiating fins 11, when the anti-collision protection plate 15 is impacted, the anti-collision protection plate 15 drives the reset spring 14 to shrink along the four guiding columns 12, impact force is reduced, when the impact is finished, the impact, the reset spring 14 drives the anti-collision protection plate 15 to reset along the four guiding columns 12, the limiting block 13 limits the anti-collision protection plate 15 to move, the anti-collision sponge 16 to further buffer force, and the outer wall of the graphene heat dissipation coating of the battery module shell 1 is used for enabling the graphene heat dissipation plate 8 to fully contact with the outer wall of the battery module 1, and the heat dissipation module 1.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lithium power battery module of new energy automobile high cycle life, includes battery module shell, its characterized in that: the battery module structure is installed to the inside lower wall face of battery module shell, battery module structure includes two lower wall insulation boards, two a plurality of ternary lithium cells are installed respectively to the last wall of lower wall insulation board, and is a plurality of upper wall insulation board is installed to the last wall of ternary lithium cell, the circuit board is installed to the inside lower wall face of battery module shell, high-pressure detecting system is installed to the last wall of circuit board, battery management host system is installed to the last wall of circuit board, and from accuse module is installed to the last wall of circuit board, battery heat radiation structure is installed to the last wall of battery module shell, shell protection architecture is installed to the lower wall face of battery module shell.

2. The lithium power battery module with the long cycle life for the new energy automobile according to claim 1, characterized in that: the battery heat radiation structure comprises a graphene heat radiation sleeve, wherein a heat conduction copper sheet is installed on the upper wall surface of the graphene heat radiation sleeve, a heat conduction copper cover is installed on the upper wall surface of the heat conduction copper sheet, and a plurality of heat radiation fins are installed on the upper wall surface of the heat conduction copper cover.

3. The lithium power battery module with the long cycle life for the new energy automobile as claimed in claim 1, wherein: the shell protection structure comprises four guide posts, wherein the lower end faces of the four guide posts are respectively sleeved with a limiting block, the outer wall faces of the four guide posts are respectively sleeved with a reset spring, and the outer wall faces of the four guide posts are sleeved with anti-collision protection plates.

4. The lithium power battery module with the long cycle life for the new energy automobile according to claim 1, characterized in that: and the lower wall surface of the battery module shell is provided with an anti-seismic sponge.

5. The lithium power battery module with the long cycle life for the new energy automobile as claimed in claim 1, wherein: the outer wall surface of battery module shell scribbles graphite alkene heat dissipation coating.

6. The lithium power battery module with the long cycle life for the new energy automobile as claimed in claim 2, wherein: and heat dissipation silicone grease is coated between the graphene heat dissipation sleeve and the heat conduction copper sheet.