Modularized solid electric heat storage device

The invention relates to the technical field of energy storage devices, in particular to a modular solid electric heat storage device which comprises a plurality of heat exchange units arranged in a stacked mode. Each heat exchange unit comprises two heat exchange plates, each heat exchange plate is provided with a heat storage surface and a heat exchange surface, the heat storage surfaces of the two heat exchange plates are oppositely arranged and form a heat storage cavity, and corrugated sections are arranged on the heat exchange surfaces; the heat storage block and the electric heating element are both arranged in the heat storage cavity; the groove body is arranged along the outer edge of the heat exchange surface, a sealing ring is arranged in the groove body, and an area enclosed by the sealing ring is a heat exchange area; and the connecting pipe penetrates through the heat exchange plate and is connected with the multiple heat exchange units, and cold media circulate in the connecting pipe and the he