Connector and battery pack

Abstract

The application discloses a connector and a battery pack, and relates to the technical field of new energy sources.The connector comprises a main shell and a connecting piece; the main shell comprises a connecting part and an external connecting part which are fixedly connected, and a first mounting hole which penetrates through the connecting part and the external connecting part, the connecting part being used for being sealingly connected with an external connecting hole of a battery pack shell; and the connecting piece and copper bars inside the battery pack are combined to form a conductive core, the conductive core being arranged in the first mounting hole and being connected with the external connecting part to form a connector plug-in end which is located outside the battery pack.In the connector, the conductive core is combined by the copper bars inside the battery pack and the connecting piece and is directly plugged with the main shell of the connector, the internal conductive terminal of the connector and the copper bars inside the battery pack are integrated into one material, the structure that the copper bars of the connector are connected with the copper bars in the battery pack through bolts in the prior art is cancelled, and thus the contact resistance can be reduced, the connection strength can be improved, and the packing space can be reduced.

Claims

1. A connector, characterized in that, Includes the main housing and connectors; The main housing includes a connecting part and an external part that are fixedly connected, and a first mounting hole that penetrates the connecting part and the external part. The connecting part is used for a sealed connection with the external through hole of the battery pack housing. The connector and the copper busbar inside the battery pack combine to form a conductive core. The conductive core passes through the first mounting hole and forms a connector mating end with the external part located outside the battery pack.

2. The connector according to claim 1, characterized in that, The connector includes a hollow inner shell, wherein: The hollow inner shell is inserted into the first mounting hole; One end of the hollow inner shell is provided with a second mounting hole for insertion into the copper busbar, and the second mounting hole is located inside the battery pack; The hollow inner shell has side openings on both sides near the other end for exposing the copper busbar. These side openings are located outside the battery pack and form the conductive area in the connector mating end.

3. The connector according to claim 2, characterized in that, The external portion includes two U-shaped grooves arranged side by side, and each U-shaped groove contains a conductive area.

4. The connector according to claim 2, characterized in that, The copper busbar includes a copper busbar connection end located in the hollow inner shell, and the width of the copper busbar connection end gradually decreases along the insertion direction.

5. The connector according to claim 2, characterized in that, The connector is interference-fitted with the first mounting hole; And / or, the copper busbar is interference-fitted with the second mounting hole.

6. The connector according to claim 1, characterized in that, The connector includes a hollow inner shell, wherein: The hollow inner shell is inserted into the first mounting hole; The hollow inner shell has through holes extending through both ends. The copper busbar passes through the through holes and is fixedly connected to the connector by fasteners, forming the conductive area in the connector's mating end.

7. The connector according to claim 1, characterized in that, The connector includes a connecting body, a screw, a second nut, and a protective end. The connecting body is provided with a third mounting hole; The second nut passes through the third mounting hole and is interference-fitted therewith; one end of the second nut is located inside the battery pack and is connected to the copper busbar by the screw, and the other end of the second nut is located outside the battery pack and is connected to the protective end, forming the conductive area in the connector mating end.

8. The connector according to claim 7, characterized in that, The connecting body includes two cylindrical ports that protrude outward relative to the external part and are arranged side by side, and each cylindrical port is provided with the third mounting hole.

9. The connector according to any one of claims 1 to 8, characterized in that, An insulating layer is provided in the area of ​​the copper busbar located within the battery pack, adjacent to the connector.

10. A battery pack, comprising a battery pack housing and a copper busbar located within the battery pack housing, characterized in that, It also includes the connector as described in any one of claims 1 to 9; The connector is connected to the copper busbar; The main housing of the connector is located outside the battery pack and is sealed to the external through hole of the battery pack housing.

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