Box structure of heat accumulation case

The utility model provides a box structure of heat accumulation case, it can add just convenient operation to heat storage materials according to actual heat accumulation demand for the commonality of heat accumulation case is good. The grounding case comprises a case body, the box upper cover is equipped with detachable lid, be provided with the heat preservation in the inner wall of box, the box arrangement has heat import, heat export, heat import, heat export communicate respectively the inner chamber of box, arranged that heat storage materials arranges the district between the position of the inner chamber that heat import, heat export correspond, heat storage materials arranges to pile up in the district has the gitter brick, heat import, heat export are located the both sides region of gitter brick respectively.