Vehicle air-conditioning device

A vehicle air-conditioning device which conditions air of a vehicle interior, comprising:

• a compressor to compress a refrigerant;
• an air flow passage through which the air to be supplied to the vehicle interior flows;
• a radiator to let the refrigerant radiate heat, thereby heating the air to be supplied from the air flow passage to the vehicle interior;
• an outdoor heat exchanger provided outside the vehicle interior to let the refrigerant absorb heat;
• and
• a control device,
• wherein the vehicle air-conditioning device includes a first heat medium circulating device to let a first heat medium circulate in a heating device for heating the first heat medium, and
• a second heat medium circulating device to let a second heat medium circulate in a heat generating device mounted on a vehicle,
• wherein the first heat medium circulating device has a first heat medium heat exchanging unit to let heat exchange between the refrigerant and the first heat medium, and
• wherein the second heat medium circulating device has a second heat medium heat exchanging unit to let heat exchange between the first heat medium and the second heat medium.