CN-224204192-U - Cover plate structure, battery pack and electric equipment

Abstract

The application relates to the technical field of batteries and provides a cover plate structure, a battery pack and electric equipment, wherein the cover plate structure comprises a cover plate main body, a first through hole is formed in the cover plate main body; the insulation frame comprises an insulation frame body and a clamping structure, wherein the insulation frame body is arranged on one side of the cover plate body, which is opposite to the connection terminal, in the thickness direction, and the clamping structure is arranged on the insulation frame body and is at least used for clamping and fixing the cover plate body and the insulation frame body. The embodiment of the application can improve the safety performance of the battery.

Inventors

• DUAN PINGAN
• WANG XINYUE
• YUAN WANSONG
• CHEN CHONG
• SUN ZENAN

Assignees

• 比亚迪股份有限公司

Dates

Publication Date

20260505

Application Date

20250321

Claims (14)

1. 1. A cover plate structure, comprising: a cover plate main body, wherein the cover plate main body is provided with a plurality of grooves, the cover plate main body is provided with a first through hole; The connecting terminal is positioned on one side of the cover plate main body, which is opposite to the pole core, and is provided with a second through hole communicated with the first through hole, a supporting platform is formed on one side of the second through hole, and the pole lug of the pole core passes through the first through hole and the second through hole and is connected to one side of the supporting platform, which is opposite to the pole core; an insulating frame, comprising: The insulating frame body is arranged on one side of the cover plate main body, which is opposite to the connecting terminal, in the thickness direction; And the clamping structure is arranged on the insulating frame body and is at least used for clamping and fixing the cover plate main body and the insulating frame body.
2. 2. The cover plate structure according to claim 1, the cover plate structure is characterized by further comprising: The support is arranged on the cover plate main body and connected between the cover plate main body and the connecting terminal, and the clamping structure is used for clamping the cover plate main body and the support on the insulating frame body.
3. 3. The cover plate structure of claim 2, wherein the snap-fit structure comprises: The hanger is connected to the insulating frame body, penetrates through the first through hole and is abutted to one side, back to the cover plate main body, of the support in the thickness direction of the cover plate structure.
4. 4. A cover structure according to claim 3, wherein the hooks comprise: An arc-shaped connecting part; And the arc-shaped connecting part is connected between the insulating frame body and the inverted hook part, and the inverted hook part is abutted with the support along the thickness direction of the cover plate structure.
5. 5. A cover plate structure according to claim 3, wherein a fastening groove is formed between the fastening structure and the insulating frame body, and the cover plate main body is fastened in the fastening groove.
6. 6. The cover plate structure of claim 5, wherein the insulator housing is formed with a void-avoidance groove, and the snap-fit structure is disposed in the void-avoidance groove.
7. 7. The cover structure of claim 6, wherein the snap-fit structure further comprises: The hook column is arranged in the empty avoidance groove, the hook is connected with the hook column, and the hook column penetrates through the first through hole.
8. 8. The cover structure of any one of claims 1 to 7, wherein the snap structure comprises a first snap set and a second snap set spaced apart along a length direction of the insulator housing.
9. 9. The cover structure according to claim 8, wherein the first snap-fit group includes a first snap-fit and a second snap-fit which are disposed at intervals in a width direction of the insulative housing body, And/or, the second buckle group comprises a third buckle and a fourth buckle which are arranged at intervals along the width direction of the insulating frame body.
10. 10. The cover plate structure according to any one of claims 1 to 7, wherein the insulating frame body includes: An insulating plate body, wherein the insulating plate body and the cover plate body are laminated along the thickness direction of the cover plate structure; And the insulating ring is arranged on the insulating plate body, the clamping structure is connected with the insulating ring, and the insulating ring is positioned at the inner side of the first through hole.
11. 11. The decking structure of claim 10, wherein the insulating plate body is formed with a countersink region around the insulating ring.
12. 12. A battery comprising a cover structure according to any one of claims 1-11.
13. 13. A battery pack comprising the battery of claim 12.
14. 14. A powered device comprising the battery of claim 12, or the battery pack of claim 13.

Description

Cover plate structure, battery pack and electric equipment Technical Field The application relates to the technical field of batteries, in particular to a cover plate structure, a battery pack and electric equipment. Background The cover plate structure of the lithium ion battery can form a positive electrode end or a negative electrode end on the cover plate structure after being welded and fixed with the pole core, and the positive electrode end or the negative electrode end can be connected into electric equipment so as to supply power to the electric equipment. Currently, in the related art, a cover structure generally includes a cover body capable of forming a connection with a case of a lithium ion battery, and a contact short circuit is easily generated between the cover body and a pole core, thereby affecting the safety performance of the lithium ion battery. Disclosure of utility model The application provides a cover plate structure, a battery pack and electric equipment, which can improve the safety performance of the battery. A first aspect of the present application provides a cover plate structure, comprising: a cover plate main body, wherein the cover plate main body is provided with a plurality of grooves, the cover plate main body is provided with a first through hole; The connecting terminal is positioned on one side of the cover plate main body, which is opposite to the pole core, and is provided with a second through hole communicated with the first through hole, a supporting platform is formed on one side of the second through hole, and the pole lug of the pole core passes through the first through hole and the second through hole and is connected to one side of the supporting platform, which is opposite to the pole core; an insulating frame, comprising: The insulating frame body is arranged on one side of the cover plate main body, which is opposite to the connecting terminal, in the thickness direction; And the clamping structure is arranged on the insulating frame body and is at least used for clamping and fixing the cover plate main body and the insulating frame body. According to the cover plate structure of the first aspect of the application, through the arrangement of the buckle structure, the connection strength between the cover plate main body and the insulating frame can be improved, the insulating frame is prevented from being separated from the cover plate main body, the structural strength of the cover plate structure can be improved on the premise of ensuring the insulating performance, and the safety performance of a battery can be improved. In one possible implementation manner, the cover plate structure further comprises a support, wherein the support is arranged on the cover plate body and connected between the cover plate body and the connecting terminal, and the buckling structure is used for buckling the cover plate body and the support on the insulating frame body. In one possible implementation manner, the buckle structure comprises a hook connected to the insulating frame body, and the hook penetrates through the first through hole and is abutted against one side, facing away from the cover plate main body, of the support in the thickness direction of the cover plate structure. In one possible implementation, the hook comprises an arc-shaped connecting part and a reverse hook part, wherein the arc-shaped connecting part is connected between the insulating frame body and the reverse hook part, and the reverse hook part is abutted with the support in the thickness direction of the cover plate structure. In one possible implementation manner, a fastening groove is formed between the fastening structure and the insulating frame body, and the cover plate main body is fastened in the fastening groove. In one possible implementation manner, the insulating frame body is formed with a void-avoiding groove, and the fastening structure is disposed in the void-avoiding groove. In one possible implementation manner, the buckle structure further comprises a hook column arranged in the empty avoidance groove, the hook is connected to the hook column, and the hook column penetrates through the first through hole. In one possible implementation, the fastening structure includes a first fastening group and a second fastening group that are disposed at intervals along a length direction of the insulating frame body. In one possible implementation manner, the first buckle group includes a first buckle and a second buckle that are disposed at intervals along a width direction of the insulating frame body, and/or the second buckle group includes a third buckle and a fourth buckle that are disposed at intervals along the width direction of the insulating frame body. In one possible implementation manner, the insulating frame body comprises an insulating plate body and an insulating ring, wherein the insulating plate body and the cover plate body are arranged in a stacked mode along t