BATTERY HEATING CIRCUIT

摘要

A battery heating circuit, comprising a switch unit, a switching control module, a damping element R1, an energy storage circuit, and an energy superposition and transfer unit, wherein, the energy storage circuit is connected with the battery, and comprises a current storage element L1 and a charge storage element C1 ; the damping element R1, switch unit, current storage element L1, and charge storage element C1 are connected in series; the switching control module is connected with the switch unit, and is configured to control ON/OFF of the switch unit, so as to control the energy flowing between the battery and the energy storage circuit; the energy superposition and transfer unit is connected with the energy storage circuit, and is configured to transfer the energy in the energy storage circuit to an energy storage element after the switch unit switches on and then switches off, and then superpose the remaining energy in the energy storage circuit with the energy in the battery. The heating circuit provided in the present invention can improve the charge/discharge performance of a battery, enhance the safety of battery heating, and improve the working efficiency of the heating circuit, and energy recycling can be achieved.