| 摘要 |
<p>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. Solution A refrigerant circuit 1 is provided with a cold storage internal heat exchanger 10 having a high-pressure refrigerant storage unit 11 through which the high-pressure refrigerant on the downstream side of a condenser 3 flows, a low-pressure refrigerant storage unit 12 through which the low-pressure refrigerant on the downstream side of an evaporator 5 flows, and a heat storage material housing unit 13 which houses a heat storage material therein. The cold storage internal heat exchanger 10 exchanges the heat between the high-pressure refrigerant in the high-pressure refrigerant storage unit 11 and the low-pressure refrigerant in the low-pressure refrigerant storage unit 12, cools the cold storage material stored in the cold storage material housing unit 13 by means of the low-pressure refrigerant in the low-pressure refrigerant storage unit 12 when a compressor 2 is activated, cools the high-pressure refrigerant in the high-pressure refrigerant storage unit 11 by means of the cold storage material housed in the cold storage material housing unit 13 after the heat exchange with the low-pressure refrigerant of the low-pressure refrigerant storage unit 12, and cools the low-pressure refrigerant in the low-pressure refrigerant storage unit 12 by means of the cold storage material housed in the cold storage material housing unit 13 when the compressor 2 is stopped.</p> |
