Energy storage device for movable freezer

The invention provides an energy storage device for a movable freezer. The energy storage device comprises a freezer body, a case, a compressor, a condenser and a battery module. A bearing frame is arranged in the case, the condenser is fixed on the bearing frame, and the battery module is located below the bearing frame; the battery module comprises a battery pack, a protection box and a pressure release valve. The condenser and the battery module are separated through the bearing frame to serve as a first layer of protection, heat generated in the charging and discharging process of the battery module is prevented from being directly transmitted to the condenser, and normal operation of the condenser is prevented from being interfered. In the battery module, the battery pack is separated from other instruments in the freezer through the protection box to provide a second layer of protection, so that the influence on other instruments in the freezer when the battery module fails is further reduced; a pressur