CN213366730U

CN213366730U - Lithium battery shell

Info

Publication number: CN213366730U
Application number: CN202022738428.XU
Authority: CN
Inventors: 张剑; 陈建龙; 邹蔡畅; 陈睿凡; 彭嘉豪; 杜刚
Original assignee: Huzhou Skyrich Power Co ltd
Current assignee: Huzhou Skyrich Power Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-06-04
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to a lithium battery packaging technical field, the current lithium battery shell is troublesome to disassemble and assemble and inconvenient to maintain, the utility model provides a lithium battery shell, which comprises a shell body and a cover body and is used for installing a lithium battery; the lithium battery comprises a battery pack core and a battery management system, and is characterized in that the shell is provided with a battery pack core accommodating cavity, the cover body is provided with an overhaul stand for installing the battery management system, and the overhaul stand protrudes outwards from the surface of the cover body and is integrally formed with the cover body. Through setting up the maintenance platform on the lid, settle battery management system in the maintenance platform and be located the top of battery, when overhauing, directly open the maintenance platform can, need not open whole lid, its structure is reliable, simple to operate, change and maintain.

Description

Lithium battery shell

Technical Field

The utility model relates to a lithium cell packing technical field, concretely relates to lithium battery shell.

Background

Among the lithium battery case structure in the existing market, generally adorn it inside the box in order to protect BMS (battery management system), nevertheless meet when needing maintenance or change, need unpack apart the case lid, the case lid is usually big and heavy, causes to unpack apart with high costs the degree of difficulty big, causes inconvenience for later maintenance.

Therefore, a lithium battery case having a reliable structure, easy installation and maintenance is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome the inconvenient defect of above-mentioned current lithium battery shell dismouting, provide a lithium battery shell that the structure is reliable, simple to operate, easy maintenance.

In order to achieve the above object, the utility model discloses a following technical scheme can realize: a lithium battery shell comprises a shell body and a cover body, wherein the shell body is used for installing a lithium battery; the lithium battery comprises a battery pack core and a battery management system, and is characterized in that the shell is provided with a battery pack core accommodating cavity, the cover body is provided with an overhaul stand for installing the battery management system, and the overhaul stand protrudes outwards from the surface of the cover body and is integrally formed with the cover body.

The utility model discloses further preferred scheme does: the opening of the shell or the cover body is provided with a first flanging, and the cover body is connected with the shell at the first flanging.

The utility model discloses further preferred scheme does: the shell and the cover body are both provided with first outward flanges; when the cover body is covered with the shell, the first flanging of the cover body is attached to the first flanging of the shell and is fastened through bolts.

The utility model discloses further preferred scheme does: the maintenance platform comprises a side wall protruding out of the surface of the cover body and an upper cover arranged on the side wall; the lower extreme of lateral wall with lid integrated into one piece, the upper end of lateral wall with the connection can be dismantled to the upper cover.

The utility model discloses further preferred scheme does: and second flanging edges are arranged at the upper end of the side wall and at the outer edge of the upper cover, and the cover body is tightly connected with the second flanging edges of the shell through bolts.

The utility model discloses further preferred scheme does: the casing is the cuboid be equipped with the splint in the casing, the splint with the inner wall clearance of casing sets up for form the intermediate layer between the inner wall of battery pack core and casing.

The utility model discloses further preferred scheme does: the splint include first splint and second splint, first splint are followed the length direction of casing extends, the second splint are followed the width direction of casing extends.

The utility model discloses further preferred scheme does: the shell is also internally provided with a pressing plate used for fixing the battery pack core in the shell, and the pressing plate is arranged above the battery pack core and is parallel to the bottom of the shell; and two ends of the pressing plate are respectively fastened with the second clamping plate.

The utility model discloses further preferred scheme does: and in the second clamping plates, the gap distance between one second clamping plate and the inner wall of the shell is greater than that between the other second clamping plate and the inner wall of the shell, so that a large gap forms a channel for arranging the battery pack core wires.

The utility model discloses further preferred scheme does: the circuit board of the battery management system is fixed on the pressing plate.

The utility model discloses further preferred scheme does: and a buffer pad is arranged between the pressing plate and the battery pack core.

To sum up, the utility model discloses following beneficial effect has: through setting up the maintenance platform on the lid, settle battery management system in the maintenance platform and be located the top of battery, when overhauing, directly open the maintenance platform can, need not open whole lid, its structure is reliable, simple to operate, change and maintain.

Drawings

Fig. 1 is an exploded view of a lithium battery case described in example 1.

Fig. 2 and 3 are schematic structural views of the housing described in embodiment 1.

Wherein:

100. a housing; 110. a first splint; 120. a second splint; 130. pressing a plate; 140. a cushion pad; 200. a cover body; 210. a side wall; 220. an upper cover; 310. a battery cell; 320. a battery management system; 410. a first outward flange; 420. and a second flanging.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Example 1:

as shown in fig. 1-2, the present embodiment provides a lithium battery case, which includes a case 100 and a cover 200, wherein the case 100 and the cover 200 are fastened to mount a lithium battery, and the lithium battery includes a battery module 310 and a battery management system 320. The case 100 has a battery module 310 accommodating cavity, in this embodiment, the case 100 is rectangular, the inside of the case is hollow to form the battery module 310 accommodating cavity, the case 100 has an opening, and the cover 200 is disposed at the opening.

A first flange 410 is provided at the opening of the housing 100 or on the cover 200, and the cover 200 is connected to the housing 100 at the first flange 410. In this embodiment, the housing 100 and the cover 200 are both provided with a first flange 410. When the cover 200 is covered with the housing 100, the first flange 410 of the cover 200 is attached to the first flange 410 of the housing 100 for fastening by bolts.

The cover body 200 is provided with an access platform for installing the battery management system 320, and the access platform protrudes out of the surface of the cover body 200 and is integrally formed with the cover body 200. In this embodiment, the service platform includes a sidewall 210 protruding from the surface of the cover 200 and an upper cover 220 disposed on the sidewall 210. Specifically, the lower end of the sidewall 210 is integrally formed with the cover 200, and the upper end of the sidewall 210 is detachably connected to the upper cover 220.

Second flanges 420 are disposed at the upper end of the side wall 210 and the outer edge of the upper cover 220, and the cover body 200 is fastened to the second flanges 420 of the housing 100 by bolts.

In order to protect the lithium battery, a clamping plate is disposed in the case 100, and the clamping plate is spaced apart from the inner wall of the case 100 to form an interlayer between the battery pack core 310 and the inner wall of the case 100. With the arrangement, even if the shell 100 is deformed by external extrusion, the shell will not immediately act on the lithium battery, and has a certain buffer effect.

Specifically, the clamping plates include a first clamping plate 110 and a second clamping plate 120, the first clamping plate 110 extends along the length direction of the housing 100, and the second clamping plate 120 extends along the width direction of the housing 100.

A pressing plate 130 for fixing the battery pack core 310 in the casing 100 is further arranged in the casing 100, and the pressing plate 130 is arranged above the battery pack core 310 and is parallel to the bottom of the casing 100; both ends of the pressing plate 130 are fastened to the second clamping plate 120 by bolts, respectively.

In the second clamping plates 120, the gap distance between one second clamping plate 120 and the inner wall of the housing 100 is greater than the gap distance between the other second clamping plate 120 and the inner wall of the housing 100, so that a large gap forms a passage for routing the wires of the battery pack core 310.

Specifically, the second clamping plate 120 having a larger gap distance with the inner wall of the housing 100 is provided with a bracket (see fig. 2) for fixing the wires, so that the wires can maintain a gap therebetween, and the winding and the maintenance are facilitated.

In this embodiment, the circuit board of the battery management system 320 is fixed on the pressing plate 130. When the cover 200 is closed with the housing 100, the circuit board of the battery management system 320 is just placed in the access desk, and an interface for connecting a power line is further opened on the sidewall 210 of the access desk.

In order to prevent the pressing plate 130 from pressing the battery to damage the battery, a buffer pad 140 is disposed between the pressing plate 130 and the battery pack core 310. In addition, as shown in fig. 3, in this embodiment, a reinforcing rib is further disposed at the bottom of the casing 100, the reinforcing rib is stamped or bent from a metal strip into a strip shape, and is welded or bonded to the bottom of the casing 100 through side lugs at two sides, so that a gap is formed between the body of the reinforcing rib and the bottom of the casing 100, which not only can enhance the strength of the casing 100, but also can serve as a foot pad, and can be conveniently fixed to a predetermined position (such as an electric vehicle frame) by a bolt.

Claims

1. A lithium battery shell comprises a shell body and a cover body, wherein the shell body is used for installing a lithium battery; the lithium battery comprises a battery pack core and a battery management system, and is characterized in that the shell is provided with a battery pack core accommodating cavity, the cover body is provided with an overhaul stand for installing the battery management system, and the overhaul stand protrudes outwards from the surface of the cover body and is integrally formed with the cover body.

2. The lithium battery cell casing of claim 1, wherein a first flange is provided at the opening of the case or on the cover, and the cover is connected to the case at the first flange.

3. The lithium battery cell casing of claim 2, wherein the case and the lid are each provided with a first flange; when the cover body is covered with the shell, the first flanging of the cover body is attached to the first flanging of the shell and is fastened through bolts.

4. The lithium battery cell casing of claim 1, wherein the service platform includes a sidewall protruding from a surface of the cover body and an upper cover provided on the sidewall; the lower extreme of lateral wall with lid integrated into one piece, the upper end of lateral wall with the connection can be dismantled to the upper cover.

5. The lithium battery cell casing of claim 4, characterized in that, be equipped with second flanging at the upper end of lateral wall and at the outer fringe of upper cover, the lid passes through bolt fastening with the second flanging of casing.

6. The lithium battery casing as claimed in claim 1, wherein the case is a rectangular parallelepiped, and a clamping plate is provided in the case with a gap from an inner wall of the case to form an interlayer between the battery cell and the inner wall of the case.

7. The lithium battery cell casing of claim 6, wherein the clamping plate comprises a first clamping plate and a second clamping plate, the first clamping plate extending along a length direction of the case, the second clamping plate extending along a width direction of the case.

8. The lithium battery cell casing of claim 7, wherein a pressing plate for fixing the battery cell in the casing is further provided in the casing, the pressing plate being provided above the battery cell and parallel to the bottom of the casing; and two ends of the pressing plate are respectively fastened with the second clamping plate.

9. The lithium battery cell casing as claimed in claim 7, wherein, in the second clamping plates, a gap distance between one of the second clamping plates and the inner wall of the case is greater than a gap distance between the other second clamping plate and the inner wall of the case, so that a large gap forms a passage for routing the battery cell lead.

10. The lithium battery cell casing of claim 8, wherein a circuit board of the battery management system is secured to the pressure plate; or

And a buffer pad is arranged between the pressing plate and the battery pack core.