Vehicle air conditioning device

Abstract

A vehicle air conditioning device such that heat load of the air conditioning device can be reduced, and power consumption can be reduced. In this vehicle air conditioning device, a first flow path and a second flow path are formed. Air in the first flow path flows sequentially through an outside air intake opening (112), a blower fan (102), an evaporator (103), a condenser (104), and the inside of the passenger compartment, and air in the second flow path flows sequentially through an inside air intake opening (116), a sensible heat exchanger (101), and the outside of the passenger compartment. The sensible heat exchanger (101) performs heat exchange between outside air introduced from the outside air intake opening (112) by the suction force of the blower fan (102), and inside air passing through the first flow path and the passenger compartment interior and introduced in the second flow path by the blowing force of the blower fan (102). Additionally, the sensible heat exchanger (101) uses a drain hose (201), which discharges drain water created when the outside air is cooled by the evaporator (103) to the outside of the passenger compartment, to discharge the inside air for which heat exchange was performed to the outside of the passenger compartment.

Description

technical field [0001] The present invention relates to a vehicle-mounted air conditioner installed in vehicles such as electric vehicles, for example. Background technique [0002] Conventionally, there is known a vehicle-mounted air conditioner that performs heat exchange between outside air taken in from the outside of the vehicle and inside air inside the vehicle to bring the outside air into a state close to the temperature and humidity of the inside of the vehicle. And enter the duct, thereby reducing the heat load consumed in the temperature adjustment of the vehicle interior (for example, Patent Document 1). [0003] Specifically, in the vehicle-mounted air conditioner of Patent Document 1, the air inside the vehicle is driven into the duct from the inside air inlet by the fan drive, and the air outside the vehicle passes through the inside and outside air heat exchanger from the outside air inlet. into the pipeline. A part of the mixed air of outside air and inter...

AI Technical Summary

Problems solved by technology

[0005] However, in Patent Document 1, the mixed air of the interior air taken in from the interior air inlet and the outside air taken in from the outside air inlet is heat-exchanged with the outside air. heat transfer problem

Also, as the amount of outside air taken in increases, the amount of outside air contained in the mixed air increases, so the heat exchange amount further decreases. When air conditioning is performed using only the taken in outside air, the following occurs Problem: Not only is the amount of heat exchange reduced, but it cannot function as an air conditioner

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