Abstract: A heat exchanger includes a heating fluid flow path through which a heating fluid flows, a heated fluid flow path through which a heated fluid flows, a heat radiation unit that stacks a plurality of heat radiation plates in a thickness direction to thereby form a heat radiation flow path communicating with the heating fluid flow path between a plurality of heat radiation plates, a heat receiving unit provided stacked in the thickness direction of the heat radiation plates forming the heat radiation unit, that stacks a plurality of heat receiving plates in the thickness direction to form a heat receiving flow path communicating with a heated fluid flow path between the plurality of heat receiving plates, a heat storage unit formed of a space between the heat radiation unit and the heat receiving unit and a heat storage material filled inside the heat storage unit.

Abstract: A heat management system includes an outdoor heat exchanger that exchanges heat between a heat medium and outdoor air, a compressor that compresses the heat medium heat-exchanged by the outdoor heat exchanger, an indoor heat exchanger that exchanges heat between the heat medium compressed by the compressor and the indoor air, and an external device heat exchanger provided between the outdoor heat exchanger and the compressor, that exchanges heat between the heat generated by an external device and the heat medium.