Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 23, 2019
Patent Application Number
15728717
Date Filed
October 10, 2017
Patent Citations Received
...
Patent Primary Examiner
Patent abstract
A battery pack includes first and second main relays connected between respective terminals of the battery and a load, a temperature variable resistor connected in parallel to the second main relay, a heating coil adjacent to the temperature variable resistor, and first and second switches respectively connected between a power source and coils of the first and second main relays. A third switch is connected between the power source and the heating coil. A controller to control on/off states of the first, second, and third switches.
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