HEAT EXCHANGER AND ENERGY STORAGE APPARATUS

This application provides a heat exchanger and an energy storage device. The heat exchanger includes a refrigerant substrate, a plurality of condenser plate heat exchangers, and a plurality of evaporator plate heat exchangers. Each condenser plate heat exchanger and each evaporator plate heat exchanger are arranged on a same side of the refrigerant substrate in a first direction. A side surface that is of each condenser plate heat exchanger and that faces the refrigerant substrate includes a refrigerant inlet and a refrigerant outlet. A side surface that is of each evaporator plate heat exchanger and that faces the refrigerant substrate includes a refrigerant inlet and a refrigerant outlet. The refrigerant substrate includes two condensation refrigerant flow channels and two evaporation refrigerant flow channels. One of the two condensation refrigerant flow channels is configured to communicate with a refrigerant inlet of each condenser plate heat exchanger, and the other condensation refrigerant flow channel is configured to communicate with a refrigerant outlet of each condenser plate heat exchanger. One of the two evaporation refrigerant flow channels is configured to communicate with the other condensation refrigerant flow channel and a refrigerant inlet of each evaporator plate heat exchanger, and the other evaporation refrigerant flow channel is configured to communicate with a refrigerant outlet of each evaporator plate heat exchanger. Therefore, a cooling capability of the heat exchanger can be improved.