JPS63131814U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view, including a partial block diagram, showing the overall configuration of an embodiment of a vehicle air conditioner according to the present invention, and FIG. 2 is a normal operation diagram for explaining the operation of the embodiment. 3 is a diagram illustrating an example of the relationship between the air volume and the target blowout temperature at different times; FIG. Similarly, FIG. 4 is a diagram showing an example of the relationship between the voltage applied to the drive motor and the air volume, and FIG. 5 is a flowchart showing an example of a flowchart for determining the air volume. 8...engine, 10...ventilation duct, 12...
...Air intake outside the vehicle, 14...Air intake inside the vehicle, 16...
...Inside and outside air damper, 18...Defroster outlet, 2
1...first switching damper drive actuator,
23...Second switching damper drive actuator, 24...First switching damper, 26...Second switching damper, 28...Drive motor, 29...Fan speed control device, 30...Blower fan, 34 …
... Temperature adjustment mechanism, 40 ... Control circuit, 46 ... Temperature setting device, 48 ... Outside temperature sensor, 50 ... Vehicle interior temperature sensor, 52 ... Solar radiation sensor, 54 ...
Water temperature sensor, 56...Glass surface temperature sensor, 60
...Front window.

Claims (1)

[Claims for Utility Model Registration] A ventilation duct having a plurality of air outlets and an air intake port, including a defroster outlet for blowing air toward the glass surface of a predetermined window, and a ventilation duct for opening and closing the defroster outlet. a damper, a blower fan for flowing air through the ventilation duct, a drive motor for rotationally driving the blower fan, a heating heat exchanger for heating the air flowing through the ventilation duct, and a heating heat exchanger for controlling the outside air temperature. In a vehicle air conditioner, the vehicle air conditioner is provided with an outside air temperature sensor for detecting an outside air temperature sensor, a vehicle interior temperature sensor for detecting a vehicle interior temperature, and a water temperature sensor for detecting an engine cooling water temperature. a glass surface temperature sensor for detecting the temperature of the outside air detected by each of the sensors, when the defroster mode is in which the defroster outlet is opened and the detected engine coolant temperature is below a predetermined value; A target air flow rate that maximizes the rate of increase in the glass surface temperature is calculated according to the indoor temperature, engine cooling water temperature, and glass surface temperature, and the air flow rate is adjusted so that the air flowing through the air duct reaches the calculated target air flow rate. A vehicle air conditioner comprising: a control circuit that controls the rotational speed of a drive motor;