Air conditioning apparatus

An air conditioning apparatus comprising:

• an electric compressor that compresses a refrigerant drawn from a refrigerant intake port and discharges the refrigerant from a refrigerant discharge port;
• a drive unit that is integrated with the electric compressor so as to be cooled by the refrigerant drawn from the refrigerant intake port of the electric compressor, the drive unit operating the electric compressor according to a control signal;
• a temperature detection unit that detects a temperature of the drive unit;
• and
• a control unit that outputs the control signal to the drive unit to control the drive unit, wherein
• the control unit is configured to, when the temperature detected by the temperature detection unit is lower than a predetermined reference temperature, perform with respect to the drive unit any one or both of:
• a control for reducing a self-cooling amount of the electric compressor, and
• a control for increasing a self-heat generation amount of the drive unit, and
• the control unit controls the drive unit to gently stop the rotation of the electric compressor when receiving a stop signal for stopping the electric compressor from an external device as the control for reducing the self-cooling amount of the electric compressor.

An air conditioning apparatus comprising:

• an electric compressor that includes an electric motor, the electric compressor being configured to, according to a rotation of the electric motor, compress a refrigerant drawn from a refrigerant intake port and discharge the refrigerant from a refrigerant discharge port;
• a drive unit that is integrated with the electric compressor so as to be cooled by the refrigerant drawn from the refrigerant intake port of the electric compressor, and controls a rotation of the electric motor;
• a control unit that outputs a control signal to the drive unit to control the drive unit;
• and
• a temperature detection unit that detects a temperature of the drive unit, wherein
• the control unit is configured to, when the temperature detected by the temperature detection unit is lower than a predetermined reference temperature, perform with respect to the drive unit any one or both of:
• a control for reducing a self-cooling amount of the electric compressor, and
• a control for increasing a self-heat generation amount of the drive unit, and
• the control unit controls the drive unit to reduce a rotation speed of the electric compressor as the control for reducing the self-cooling amount of the electric compressor.

An air conditioning apparatus comprising:

• an electric compressor that includes an electric motor, the electric compressor being configured to, according to a rotation of the electric motor, compress a refrigerant drawn from a refrigerant intake port and discharge the refrigerant from a refrigerant discharge port;
• a drive unit that is integrated with the electric compressor so as to be cooled by the refrigerant drawn from the refrigerant intake port of the electric compressor, and controls a rotation of the electric motor;
• a control unit that outputs a control signal to the drive unit to control the drive unit;
• and
• a temperature detection unit that detects a temperature of the drive unit, wherein
• the control unit is configured to, when the temperature detected by the temperature detection unit is lower than a predetermined reference temperature, perform with respect to the drive unit any one or both of:
• a control for reducing a self-cooling amount of the electric compressor, and
• a control for increasing a self-heat generation amount of the drive unit, and
• the control unit controls the drive unit to gently stop the rotation of the electric compressor when receiving a stop signal for stopping the electric compressor from an external device as the control for reducing the self-cooling amount of the electric compressor.