HEAT EXCHANGE DEVICE, HEAT EXCHANGE APPARATUS, THERMAL MANAGEMENT SYSTEM AND CONTROL METHOD THEREFOR, AND VEHICLE

A heat exchange apparatus, a heat exchange device, a thermal management system, a control method for a thermal management system, and a vehicle are provided, to implement a heat exchange or heat preservation requirement of a to-be-heat-exchanged element, and improve performance and use safety of the to-be-heat-exchanged element. The heat exchange apparatus includes a housing and a spacer plate disposed in the housing. The spacer plate separates the housing into a first cavity and a second cavity. An outer wall on a side that is of the first cavity and that is away from the second cavity is configured to be in thermally conductive contact with a to-be-heat-exchanged element. The first cavity is provided with a first inlet and a first outlet. The second cavity is provided with a second inlet and a second outlet. A first sealing element configured to open or close the second inlet is disposed at the second inlet. A second sealing element configured to open or close the second outlet is disposed at the second outlet.