| 摘要 |
A vehicular air conditioner in which a plurality of parts comprising a refrigerant circuit are integrally provided to reduce an occupying space and reduce the number of the parts and the number of assembling steps. A refrigerant circuit is provided with a cold storage internal heat exchanger having a high-pressure refrigerant storage unit through which the high-pressure refrigerant on the downstream side of a condenser flows, a low-pressure refrigerant storage unit through which the low-pressure refrigerant on the downstream side of an evaporator flows, and a cold storage material housing unit which houses a cold storage material therein. The cold storage internal heat exchanger exchanges the heat between the high-pressure refrigerant in the high-pressure refrigerant storage unit and the low-pressure refrigerant in the low-pressure refrigerant storage unit, cools the cold storage material stored in the cold storage material housing unit by means of the low-pressure refrigerant in the low-pressure refrigerant storage unit when a compressor is activated, cools the high-pressure refrigerant in the high-pressure refrigerant storage unit by means of the cold storage material housed in the cold storage material housing unit after the heat exchange with the low-pressure refrigerant of the low-pressure refrigerant storage unit, and cools the low-pressure refrigerant in the low-pressure refrigerant storage unit by means of the cold storage material housed in the cold storage material housing unit when the compressor is stopped. |
