Power conversion device and air conditioner

A power conversion device for use in an outdoor unit of an air conditioner, the device comprising:

• an alternating current-direct current conversion section that converts an alternating-current voltage supplied from an alternating-current power source to generate a direct-current voltage to be applied to a compressor drive section that operates a compressor;
• a direct-current-voltage smoothing section that smooths a direct-current voltage output from the alternating current-direct current conversion section;
• a first noise reduction section having inductive reactance and having one end connected to the alternating-current power source and another end connected to the alternating current-direct current conversion section;
• a second noise reduction section having capacitive reactance and disposed between the first noise reduction section and the alternating current-direct current conversion section;
• an inrush-current inhibition circuit that is connected in parallel with the second noise reduction section and the alternating current-direct current conversion section and inhibits an inrush current from flowing through the direct-current-voltage smoothing section;
• a first alternating-current power-source relay that opens and closes an alternating-current power supply path to the inrush-current inhibition circuit;
• and
• a second alternating-current power-source relay that opens and closes an alternating-current power supply path to the second noise reduction section.