Patent ID: 9748614
Date: 2017-08-29
CPC Classifications: H01M,H02J,Y02E

Claim:
1. A battery temperature regulating device adapted for a battery pack that is configured by parallely connecting a plurality of battery groups, each of which is a series connection of a plurality of battery cells capable of charge and discharge, the device configured to regulate temperatures of the plurality of battery groups, the battery temperature regulating device comprising a heat transfer means for transferring heat from a first part of the plurality of battery groups to a second part of the plurality of battery groups, the second part of the plurality of battery groups having a larger amount of stored electricity than the first part of the plurality of battery groups; wherein the first part of the plurality of battery groups includes a currently-used one of the plurality of battery groups; the second part of the plurality of battery groups includes one of the plurality of battery groups having a larger amount of stored electricity than the currently-used one of the plurality of battery groups; and the heat transfer means begins transferring the heat of the first part of the plurality of battery groups to the second part of the plurality of battery groups when an amount of electricity stored in the first part of the plurality of battery groups becomes smaller than a predetermined reference amount, and the first part of the plurality of battery groups discharges electricity during the transferring of the heat from the first part of the plurality of battery groups to the second part of the plurality of battery groups.