| 摘要 |
It is an object of the present invention is to provide a vehicle air-conditioning apparatus which can reduce the number of processes of mounting a lamination type of internal heat exchanger, is easily attachable, and is space saving. A vehicle air-conditioning apparatus (100) according to the present invention is provided with a case (1) having a ventilation flow path for blowing air therein and disposed in a vehicle interior (4), a blower unit (21) configured to form the blowing air, an evaporator (14) performing heat exchange with a blowing air (31), an internal heat exchanger (16) performing heat exchange between a condensed high-temperature and high-pressure cooling medium in a refrigeration cycle (10) and an evaporated low-temperature and low-pressure cooling medium, and a cooling medium expansion unit. In the vehicle air-conditioning apparatus, the internal heat exchanger (16) has a laminate structure in which a high-pressure side cooling medium flow path (61) through which the high-temperature and high-pressure cooling medium is flowed and a low-pressure side cooling medium flow path (62) through which the low-temperature and low-pressure cooling medium is flowed are alternately arranged in a line, and the internal heat exchanger is stored in the case (1) and disposed in a region S between the evaporator (14) and a firewall (2). |
