Elastic connection device for battery cells

Abstract

The invention discloses an elastic connection device for battery cells and is mainly applied to elastic connection in series of the battery cells. The elastic connection device comprises a conductive elastic piece used for being connected with another battery cell and an insulating clamping seat for fixing a battery cell. The another battery cell inserted into the left side of the conductive elastic piece is fixed by elastic claws in the elastic connection device for the battery cells, the conductive elastic piece is not required to be inserted into the another battery cell for welding connection, and the problem of an open circuit of the battery cells due to welding spot falling caused by vibration is solved. Lugs are arranged on two sides of an inwards bending position of each elastic claw in the elastic connection device for the battery cells, so that the contact area between the conductive elastic piece and the inserted another battery cell is increased, and pressure drop and energy loss caused by connection with the another battery cell are reduced; the conductive elastic piece produces elastic support for the another battery cell inserted into the conductive elastic piece through secondary deformation, and the elastic connection device is convenient to mount and firm in fixing.

Description

technical field [0001] The invention relates to the technical field of power batteries. More specifically, it relates to a battery elastic connection device. Background technique [0002] The power battery is a storage battery that provides power for electric vehicles, electric trains, electric bicycles, etc. It has a wide range of uses. Generally, it uses multiple single batteries for series and parallel combinations according to the requirements of the voltage and capacity required by the load. Increase the voltage and increase the capacity of the battery pack through parallel connection. [0003] In view of the above situation, the Chinese patent with the authorized announcement number CN201270266Y and the authorized announcement date of 2009.07.08 discloses a battery connection device, wherein the connection device includes a connection block and a series-parallel structure, which can make each single battery like a building block The same modular series-parallel conne...

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Problems solved by technology

[0003] In view of the above situation, the Chinese patent with the authorized announcement number CN201270266Y and the authorized announcement date of 2009.07.08 discloses a battery connection device, wherein the connection device includes a connection block and a series-parallel structure, which can make each single battery like a building block The same modular series-parallel connection, but the contact area between the conductive sheet and the battery is small, which increases the voltage drop and energy loss of the battery connection, and when the connection slot is too small, the battery should not be installed. When the slot is too large, the battery will not be fixed firmly enough

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