TWI796871B

The invention provides an electric heating type battery electric quantity balancing module which comprises a battery unit, a plurality of electric heating pieces, a balancing control switch unit, a plurality of heating control switches and a controller, the battery unit comprises a plurality of battery strings, and the electric heating pieces are arranged among the battery strings at intervals. The balance control switch unit is electrically connected with the battery strings and is provided with a common connecting end, the common connecting end is electrically connected with the electric heating pieces, each heating control switch is connected with each electric heating piece in series, and when the controller judges that the voltage of any battery string is different from the voltage of other battery strings, the balance control switch unit is electrically connected with the electric heating pieces. And controlling the on-off states of the balance control switch unit and the heating control switches, and f