Patent ID: 8669000
Filing Date: 2014-03-11
Classification: H01M,Y02E,Y02P

Abstract:
1. A battery pack, comprising: a plurality of battery modules, each battery module including a plurality of stacked unit battery cells; a frame supporting the plurality of battery modules; and a plurality of elastic coupling members for elastically connecting at least one battery module to another battery module or for elastically connecting the at least one battery module to the frame; wherein: elastic coupling members connected to the at least one battery module have a different elastic coefficient from elastic coupling members connected to the other battery module, each of the elastic coupling members includes an elastic body for providing elasticity and a retention unit for preventing the elastic body from being moved, the retention unit includes a coupling member, the coupling member being inserted in the elastic body and connecting the battery modules to each other and connecting at least one battery module to the frame, the coupling member includes screw threads on end portions thereof, and the battery modules and the frame include screw recesses for coupling engagement with the coupling member.