Electric compressor

An electric compressor comprising:

• a housing;
• a drive shaft that is disposed in the housing and rotatable around an axis of the drive shaft;
• a motor disposed in the housing and configured to rotate the drive shaft;
• a fixed scroll fixed to and disposed in the housing;
• a movable scroll disposed in the housing and connected to the drive shaft, the movable scroll being revolved by rotation of the drive shaft, wherein a compression chamber that compresses refrigerant is formed between the movable scroll and the fixed scroll;
• and
• a fixed block fixed to the housing and disposed between the motor and the movable scroll, the fixed block supporting the drive shaft such that the drive shaft is rotatable, the fixed block defining a motor chamber in the housing to accommodate the motor, wherein
• the housing has an inlet through which refrigerant is drawn into the motor chamber,
• the motor includes a stator fixed in the motor chamber and a rotor fixed to the drive shaft, disposed in the stator, and rotatable together with the drive shaft,
• the rotor has an introduction passage that is formed through the rotor in an axial direction of the drive shaft, wherein refrigerant flows through the introduction passage,
• the drive shaft includes a balance weight that is disposed between the fixed block and the motor,
• the balance weight extends to a position where the balance weight covers at least a part of the introduction passage in a radial direction of the drive shaft in a view in the axial direction of the drive shaft, and
• the introduction passage includes a first passage that is located outward of the balance weight in a circumferential direction of the rotor and the drive shaft, and a second passage that faces the balance weight in the axial direction of the drive shaft.