Thermal management system, vehicle, and thermal management method

A thermal management system, comprising:

• a tank assembly, a pump assembly, and a valve unit, the tank assembly comprises a shell body and a cover plate, the shell body covers the cover plate and forms an accommodation chamber together with the cover plate, and the pump assembly and the valve unit are each installed on the shell body;
• a plurality of pipelines for liquid circulation is disposed in the accommodation chamber, and the shell body has a plurality of connection ports communicating with the accommodation chamber, a first end of one pipeline of the plurality of pipelines communicates with one connection port of the plurality of connection ports in one-to-one correspondence, and a second end of the one pipeline of the plurality of pipelines and a portion of the pipeline are located outside the accommodation chamber;
• the valve unit has a plurality of valve ports, and the valve ports communicate with the connection ports in one-to-one correspondence, and the valve unit is configured for controlling a disconnection or connection between each connection port and its corresponding valve port, so as to control a disconnection or connection between the pipelines;
• wherein a side of the shell body facing away from the cover plate has a first installation region and a second installation region, and the plurality of connection ports comprises a plurality of first connection ports and a plurality of second connection ports, the first connection ports are located in the first installation region, and the second connection ports are located in the second installation region;
• the valve unit comprises a first multi-way valve and a second multi-way valve, and a plurality of valve ports comprises a plurality of first-valve-ports and a plurality of second-valve-ports, the first-valve-ports are located at the first multi-way valve, and the second-valve-ports are located at the second multi-way valve;
• the first multi-way valve is connected in the first installation region, and the first connection ports communicate with the first-valve-ports in one-to-one correspondence, the second multi-way valve is connected in the second installation region, and the second connection ports communicate with the second-valve-ports in a one-to-one correspondence.