Thermal management system

A control method of a thermal management system, the thermal management system comprising a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a first throttling device, a first flow direction switching device and a controller;

• the first flow direction switching device comprising a first port, a second port and a third port;
• the first flow direction switching device having a first working state;
• in the first working state, the first port communicating with at least one of the second port and the third port;
• the controller being configured to execute the control method of the thermal management system, so as to control a working state of the thermal management system;
• the control method of the thermal management system comprising:
• controlling the thermal management system to enter a heating mode by the controller;
• in the heating mode, the first throttling device being in a throttling state;
• the first flow direction switching device being in the first working state;
• an outlet of the compressor communicating with an inlet of the first heat exchanger;
• an outlet of the first heat exchanger communicating with a second end port of the first throttling device;
• a first end port of the first throttling device communicating with the first port;
• the first port communicating with the second port;
• the second port communicating with a first end port of the second heat exchanger;
• a second end port of the second heat exchanger communicating with an inlet of the compressor;
• or, the first port communicating with the third port;
• the third port communicating with the first end port of the third heat exchanger;
• the second end port of the third heat exchanger communicating with the inlet of the compressor.

A thermal management system, comprising:

• a refrigerant system and a coolant system;
• the refrigerant system including a compressor, a first heat exchanger, a second heat exchanger and a first throttling device;
• the first throttling device having a throttling state and a cut-off state;
• the coolant system including a first pump and a battery heat exchange device;
• wherein the thermal management system further includes a third heat exchanger and a damper;
• the third heat exchanger includes a first heat exchange portion and a second heat exchange portion which are capable of exchanging heat with each other;
• the first heat exchange portion and the second heat exchange portion are not in communication;
• the first heat exchange portion is connected to the refrigerant system;
• the second heat exchange portion is connected to the coolant system;
• the damper is located on a windward side of the first heat exchanger;
• the damper is configured to control an air volume flowing through the first heat exchanger;
• the thermal management system includes a battery single heating mode and a hybrid heating mode;
• in the battery single heating mode and the hybrid heating mode, the first throttling device is in the throttling state;
• the compressor, the first heat exchanger, the first heat exchange portion, the first throttling device, the second heat exchanger are communicated to form a refrigerant circuit;
• the first throttling device is disposed between an outlet of the first heat exchange portion and an inlet of the second heat exchanger;
• the first pump, the second heat exchange portion and the battery heat exchange device are communicated to form a coolant circuit;
• in the battery single heating mode, the damper is controlled so that wind does not flow through the first heat exchanger;
• in the hybrid heating mode, the damper is controlled to allow the wind to flow through the first heat exchanger.