CN-224217754-U - Plug assembly and lithium ion battery

CN224217754UCN 224217754 UCN224217754 UCN 224217754UCN-224217754-U

Abstract

The utility model relates to the field of lithium ion battery preparation and discloses a plug assembly and a lithium ion battery, wherein the plug assembly comprises a plug, a communication circuit module, a positive copper plate, a negative copper plate, a plug shell and a communication wire harness which is used for externally connecting the plug, the communication circuit module, the positive copper plate and the negative 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 flat plate structure is assembled on the plug shell, each conductor plug at the first end of the plug is respectively opposite to the back surface of the flat plate structure, each conductor plug is respectively tightly inserted into each conductor jack on the positive copper plate, the communication circuit module and the negative copper plate, and the externally connecting part is electrically connected with each conductor plug and is positioned at the second end of the plug. The plug assembly is applied to the lithium ion battery, so that the universality of the battery product is improved.

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: 20260508
Application Date: 20250521

Claims (10)

1. A plug assembly is characterized by comprising a plug for external connection, a communication circuit module, a positive copper plate, a negative copper plate, a plug shell 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 which is assembled on the plug shell, The conductor plug pieces at the first end part of the plug are respectively opposite to the back surface of the flat plate structure, the conductor plug pieces are respectively tightly inserted into the conductor jack holes 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.
2. A plug assembly according to claim 1, wherein, The plug shell comprises 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 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.
3. A plug assembly according to claim 2, wherein, The plug shell is provided with a plurality of positioning holes penetrating up and down so as to be positioned and installed on the shell.
4. A plug assembly according to claim 2, wherein, The top plate of the overhead layer covers the upper part of the plugging structure between the flat plate structure and the plug.
5. A plug assembly according to claim 2, wherein, The external plug-in part extends out of the port of the space surrounded by the protective wall.
6. A plug assembly according to claim 2, wherein, The flat plate structure is injection-molded with the plug housing.
7. The plug assembly of claim 6, wherein the plug is, The plug is injection molded with the plug housing.
8. A plug assembly according to claim 2, wherein, And conductor fixing holes are respectively arranged on the positive copper plate and the negative copper plate.
9. 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 according to any one of claims 1 to 8, wherein 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 installed in the cavity, the front sides of the positive copper plate and the negative copper plate of the plug assembly are respectively tightly attached to the back sides 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.
10. The lithium-ion battery of claim 9, 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.

Description

Plug assembly and lithium ion battery Technical Field The utility model relates to the field of battery manufacturing, in particular to a plug assembly and 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 An objective of the embodiments of the present utility model is to provide a plug assembly and a lithium ion battery, wherein the application of the plug assembly to the lithium ion battery is beneficial to improving the versatility of the battery product. In a first aspect, the present embodiment provides a plug assembly, including the plug for external connection, a communication circuit module, the positive copper plate, the negative copper plate, a plug housing, a communication harness electrically connected to 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 which is assembled on the plug shell, The conductor plug pieces at the first end part of the plug are respectively opposite to the back surface of the flat plate structure, the conductor plug pieces are respectively tightly inserted into the conductor jack holes 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 housing comprises 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 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. Optionally, the plug housing is provided with a plurality of positioning holes penetrating up and down for positioning and installing on the shell. Optionally, the top plate of the overhead layer covers over the plugging structure between the flat plate structure and the plug. Optionally, the external plug-in part extends out of the port of the space surrounded by the protection wall. Optionally, the plate structure is injection molded with the plug housing. Optionally, the plug is injection molded with the plug housing. Optionally, conductor fixing holes are respectively arranged on the positive electrode copper plate and the negative electrode copper plate. In a second aspect, the embodiment of the utility model 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 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 p