| 摘要 |
PURPOSE:To make temperature inside a car room uniform as well as to reduce the extent of load at the time of starting an air conditioner, by rotating a fan making a solar cell a power source, when a car is stopped under the blazing sun, while producing a flow of air around a car room ceiling. CONSTITUTION:Each of solar cell panels 14 and 15 is set up in the front and the rear of an automobile, comparing each output voltage of these panels by voltage comparators 161 and 162, and when a difference in these output voltage values comes to positive, switches 171 and 172 or 173 and 174 are turned on. And, when this output voltage shows such a value as being sufficient enough for operating exhaust fans 25 and 26, and detection temperature of a car room inside temperature detector 20 is more than the setting value (discomfortable temperature) and furthermore a battery driven fan operating indicator 21 shows that a battery driven fan is in a stop state, each of switches 175 and 176 is turned on. With this constitution, both new-charge and exhaust fans 25 and 26 are started, blowing off fresh air to the inside of a car room 7, and the air circulated through the inside of the car room 7 is exhausted to the outside. |
