CN-224232847-U - Lithium ion battery

CN224232847UCN 224232847 UCN224232847 UCN 224232847UCN-224232847-U

Abstract

The utility model relates to the field of lithium ion battery preparation and discloses an ion battery, which comprises a shell, a battery pack body, a battery management system module and a plug assembly, wherein the battery pack body and the battery management system module are packaged in the shell, a cavity with an external opening is formed in the shell, an anode copper sheet and a cathode copper sheet of the battery management system module are positioned on the cavity side, the plug assembly is used for being connected with an external plug to discharge or charge the battery pack body, the plug assembly is detachably arranged in the cavity, the front sides of an anode copper plate and a cathode copper plate of the plug assembly are respectively tightly attached to the back sides of the anode copper sheet and the cathode copper sheet of the battery management system module, and an external connection part of a plug of the plug assembly is positioned at the opening of the cavity for external connection. The technical scheme is beneficial to improving the universality of battery products.

Inventors

LIU BING
GUO BING
ZHAO SHIXIN
LIN LI
LI GANG
LIU SU

Assignees

深圳市格瑞普电池有限公司

Dates

Publication Date: 20260512
Application Date: 20250521

Claims (11)

1. A lithium ion battery is characterized by comprising a shell, a battery pack body, a battery management system module and a plug assembly, The battery pack body and the battery management system module are packaged in the shell, A cavity with an external opening is arranged on the shell, the positive and negative copper sheets of the battery management system module are positioned at the cavity side, The plug assembly is used for being connected with an external plug to discharge outwards or charge the battery pack body, the plug assembly is detachably arranged in the cavity, the front faces of the positive copper plate and the negative copper plate of the plug assembly are respectively and tightly attached to the back faces of the positive copper plate and the negative copper plate of the battery management system module, and the external plug-in part of the plug assembly is positioned at the opening of the cavity for external plug-in.
2. The lithium-ion battery of claim 1, wherein the battery comprises a plurality of lithium-ion batteries, The plug assembly comprises a plug for external connection, a communication circuit module, the positive copper plate, the negative copper plate and a communication wire harness electrically connected with the communication circuit module, The anode copper plate and the cathode copper plate are respectively fixed at the left end and the right end of the communication circuit module and are combined into a flat plate structure, The communication harness is electrically connected with the battery management system module, The conductor plug-ins at the first end part of the plug are respectively opposite to the back surface of the flat plate structure, the conductor plug-ins are respectively tightly inserted into the conductor jacks on the anode copper plate, the communication circuit module and the cathode copper plate, The external plug-in part is electrically connected with each conductor plug-in part and is positioned at the second end part of the plug.
3. The lithium-ion battery of claim 2, wherein the battery comprises a plurality of lithium-ion batteries, The plug assembly also comprises a plug shell, comprising an overhead layer, wherein the top plate of the overhead layer is provided with two avoidance gaps, the flat plate structure formed by combining the anode copper plate, the communication circuit module and the cathode copper plate is limited in the overhead layer, the front sides of the anode copper plate and the cathode copper plate which are respectively exposed from the two avoidance gaps are attached to the back sides of the anode copper plate and the cathode copper plate of the battery management system module, The plug shell is also provided with a wiring hole which is positioned between the two avoidance gaps, the communication wire harness extends out from the wiring hole, The back of the bottom plate of the overhead layer is also provided with a protective wall with the shape matched with the outer wall of the plug, the plug is positioned in a space surrounded by the protective wall, the space surrounded by the protective wall is communicated with the overhead layer, and each conductor plug at the first end of the plug is respectively connected with each conductor jack of the flat plate structure positioned on the overhead layer.
4. The lithium-ion battery of claim 3, wherein the battery comprises a plurality of lithium-ion batteries, The shell comprises a lower shell and a shell top cover, the battery pack body is encapsulated in the lower shell, the shell top cover covers the top of the lower shell, the battery management system module is fixed at the bottom of the shell top cover, A protruding part protruding out of the side wall of the lower shell is arranged on the top cover of the shell, A cavity with an external opening is arranged on the shell, in particular to a cavity is arranged on the protruding part, The positive and negative copper sheets of the battery management system module are positioned at the cavity side and are adhered to the positive copper plate and the negative copper plate of the plug assembly.
5. The lithium-ion battery of claim 4, further comprising, The plug cover comprises a fixed plate and a through hole positioned on the fixed plate, The fixed plate is fixedly connected with the shell top cover positioned outside the cavity, the plug assembly is locked between the fixed plate and the shell top cover, and the plug enclosed in the protecting wall extends out of the through hole.
6. The lithium-ion battery of claim 4, wherein the battery comprises a plurality of lithium-ion batteries, The plug shell is provided with a plurality of positioning holes penetrating up and down, the top cover of the shell is provided with a plurality of positioning columns, the plug shell is fixed on the positioning columns through a plurality of screws, and the screws penetrate through the positioning holes and are screwed with the positioning columns.
7. The lithium-ion battery of claim 3, wherein the battery comprises a plurality of lithium-ion batteries, The top plate of the overhead layer covers the upper part of the plugging structure between the flat plate structure and the plug.
8. The lithium-ion battery of claim 3, wherein the battery comprises a plurality of lithium-ion batteries, The external plug-in part extends out of the port of the space surrounded by the protective wall.
9. The lithium-ion battery of claim 3, wherein the battery comprises a plurality of lithium-ion batteries, The flat plate structure is injection-molded with the plug housing.
10. The lithium-ion battery of claim 9, wherein the battery comprises a plurality of lithium-ion batteries, The plug is injection molded with the plug housing.
11. The lithium-ion battery of claim 3, wherein the battery comprises a plurality of lithium-ion batteries, The positive copper plate of the plug-in component and the positive copper plate of the battery management system module are respectively provided with a conductor fixing hole which is opposite to each other vertically, The plurality of conductor screws are respectively fastened in the conductor fixing holes which are opposite to each other, and are tightly stuck to the positive copper plate and the negative copper plate which are tightly stuck to each other.

Description

Lithium ion battery Technical Field The utility model relates to the field of battery manufacturing, in particular to a lithium ion battery. Background With the development of new energy, lithium ion batteries are increasingly used in various electronic products. For example, power plugs for mechanical devices and drones are mostly custom plugs, and electronic product providers often configure chargers for products without the need for battery providers to provide them. For this reason, in the battery manufacturing process of the prior art, a battery manufacturer customizes a battery according to an electronic product to which a current lot of batteries are adapted. Every adapted electronic product changes, the battery needs to be customized again, the design cost of the battery is high, and the mass production of the battery is not facilitated. Disclosure of Invention One of the purposes of the embodiments of the present utility model is to provide a lithium ion battery, and the application of the technical scheme is beneficial to improving the universality of the battery product. In a first aspect, the embodiment provides a lithium ion battery, which comprises a shell, a battery pack body, a battery management system module and a plug assembly, The battery pack body and the battery management system module are packaged in the shell, A cavity with an external opening is arranged on the shell, the positive and negative copper sheets of the battery management system module are positioned at the cavity side, The plug assembly is used for being connected with an external plug to discharge outwards or charge the battery pack body, the plug assembly is detachably arranged in the cavity, the front faces of the positive copper plate and the negative copper plate of the plug assembly are respectively and tightly attached to the back faces of the positive copper plate and the negative copper plate of the battery management system module, and the external plug-in part of the plug assembly is positioned at the opening of the cavity for external plug-in. Optionally, the plug assembly comprises the plug for external connection, a communication circuit module, the positive copper plate, the negative copper plate and a communication wire harness electrically connected with the communication circuit module, The anode copper plate and the cathode copper plate are respectively fixed at the left end and the right end of the communication circuit module and are combined into a flat plate structure, The communication harness is electrically connected with the battery management system module, The conductor plug-ins at the first end part of the plug are respectively opposite to the back surface of the flat plate structure, the conductor plug-ins are respectively tightly inserted into the conductor jacks on the anode copper plate, the communication circuit module and the cathode copper plate, The external plug-in part is electrically connected with each conductor plug-in part and is positioned at the second end part of the plug. Optionally, the plug assembly further comprises a plug housing, including an overhead layer, two avoidance gaps are arranged on a top plate of the overhead layer, the flat plate structure formed by combining the anode copper plate, the communication circuit module and the cathode copper plate is limited in the overhead layer, the front surfaces of the anode copper plate and the cathode copper plate exposed from the two avoidance gaps are respectively attached to the back surfaces of the anode copper plate and the cathode copper plate of the battery management system module, The plug shell is also provided with a wiring hole which is positioned between the two avoidance gaps, the communication wire harness extends out from the wiring hole, The back of the bottom plate of the overhead layer is also provided with a protective wall with the shape matched with the outer wall of the plug, the plug is positioned in a space surrounded by the protective wall, the space surrounded by the protective wall is communicated with the overhead layer, and each conductor plug at the first end of the plug is respectively connected with each conductor jack of the flat plate structure positioned on the overhead layer. Optionally, the housing comprises a lower housing and a housing top cover, the battery pack body is encapsulated in the lower housing, the housing top cover covers the top of the lower housing, the battery management system module is fixed at the bottom of the housing top cover, A protruding part protruding out of the side wall of the lower shell is arranged on the top cover of the shell, A cavity with an external opening is arranged on the shell, in particular to a cavity is arranged on the protruding part, The positive and negative copper sheets of the battery management system module are positioned at the cavity side and are adhered to the positive copper plate and the negative copper plate of the plug assembl