| 摘要 |
PURPOSE:To automatically exhaust hot air in an automotive compartment during parking, by providing an inside air outlet in the compartment, and opening a damper of the inside air outlet when temperature of inside air is detected to be higher than a set value. CONSTITUTION:When temperature in a compartment 2 is detected to be higher than a set value, e.g., 40 deg.C by a temperature sensor, a drive cylinder 10 is operated to extend a rod 9 and open a damper 5, thereby automatically rapidly exhausting hot air in the compartment 2 from an inside air outlet 4. When the temperature in the compartment 2 is decreased to a value lower than the set value, the damper 5 is closed. As a damper operating device 6, a shape memory alloy may be provided between the damper 5 and a bracket 8 so that the damper 5 may be opened by extension of the alloy at temperatures higher than the set value. Thus, the hot air in the compartment may be automatically exhausted during parking, thereby obviating a ventilating operation upon getting on a car. |
