Heat management system and electric vehicle

An electric vehicle, configured with a heat management system, wherein the heat management system comprises:

• a vapor compression circulation subsystem;
• and
• a coolant subsystem, wherein
• a compressor, a condenser, a throttling apparatus, and an evaporator are comprised in the vapor compression circulation subsystem and are sequentially connected to form a closed loop, to provide a coolant at a preset temperature for circulation in the coolant subsystem;
• and
• a battery pack, a power assembly, a heat exchanger, a first water pump, a second water pump, a third water pump, a first water tank, and a second water tank are comprised in the coolant subsystem and are connected by using a multi-path direction control valve assembly, so that the system adjusts opening or closing of each valve port in the multi-path direction control valve assembly to select different circulation manners of the coolant;
• the multi-path direction control valve assembly is configured to implement circulation of the coolant among the condenser, the evaporator, the battery pack, the power assembly, the heat exchanger, the first water pump, the second water pump, the third water pump, the first water tank, and the second water tank;
• and
• the multi-path direction control valve assembly is configured to implement the following process in which the coolant is capable of being output from the condenser, sequentially flows through the first water pump, the battery pack, the first water tank, the evaporator, the third water pump, the power assembly, the heat exchanger, and the second water tank, and then is capable of being input to the condenser.