Vehicle air conditioner

A vehicle air conditioner comprising:

• a thermoelectric conversion module including a thermoelectric conversion element, wherein flowing direction of electric current applied to the thermoelectric conversion element can be controllably reversed, the thermoelectric conversion module further including a first surface and a second surface,
• a first heat exchanger provided on the first surface side;
• a second heat exchanger provided on the second surface side;
• a first air-conditioning heat exchanger;
• a second air-conditioning heat exchanger;
• a radiator;
• a first circuit connecting the first heat exchanger and the first air-conditioning heat exchanger;
• and
• a second circuit connecting the second heat exchanger, the second air-conditioning heat exchanger and the radiator, wherein the first circuit including:
• a first passage extending from the first heat exchanger to the first air-conditioning heat exchanger;
• and
• a second passage extending from the first air-conditioning heat exchanger to the first heat exchanger, wherein heat exchange medium flows through the second circuit, wherein the second circuit includes:
• a third passage extending from the second heat exchanger to the second air-conditioning heat exchanger;
• a fourth passage extending from the second air-conditioning heat exchanger to the radiator;
• a fifth passage extending from the radiator to the second heat exchanger;
• a bypass passage connecting the third passage and the fourth passage;
• and
• a first switching device switching selectively between a first position where the heat exchange medium flows through the bypass passage that bypasses the second air-conditioning heat exchanger and a second position where the heat exchange medium flows through the second air-conditioning heat exchanger.