Temperature control system for electric vehicle

A temperature control system for an electric vehicle that includes an air-conditioning unit for performing air conditioning, a drive motor, and a battery that accommodates a cell inside a battery case, the temperature control system comprising:

• a compressor that compresses a refrigerant containing CO2;
• a heat exchanger that cools the refrigerant compressed by the compressor;
• a first expansion valve that expands the refrigerant cooled by the heat exchanger;
• an air-conditioning cooling path, through which the refrigerant expanded by the first expansion valve is supplied to the air-conditioning unit when the air-conditioning unit is cooled;
• a motor cooling path, through which the refrigerant expanded by the first expansion valve is supplied to the motor when the motor is cooled;
• a second expansion valve that expands the refrigerant and injects it into the battery case;
• a battery cooling path, through which the refrigerant that has cooled the motor is supplied to the second expansion valve when the motor is cooled and the battery is cooled;
• and
• a collection path, through which the refrigerant that has flowed through the air-conditioning unit, the refrigerant that has flowed through the motor, and the refrigerant that has flowed through the battery are supplied to the compressor.