Offshore wind power energy storage device

The utility model belongs to the technical field of power generation and energy storage devices, and particularly relates to an offshore wind power energy storage device. The solar water heater comprises a machine body, a storage battery with a heat dissipation mechanism is arranged in an inner cavity of the machine body, the heat dissipation mechanism comprises a heat dissipation box, a water inlet, a flushing pipe, a plurality of water guide plates, a water through groove and a water outlet, the heat dissipation box is fixedly arranged in the machine body, each water guide plate is vertically arranged, and the water through groove is communicated with the water outlet. The water guide plates divide an inner cavity of the heat dissipation box into a plurality of independent battery containing cavities, the storage batteries are arranged in the battery containing cavities, the outer sides of the storage batteries make contact with the inner cavities of the battery containing cavities, a water through groove i