| 摘要 |
<p>A louvre panel unit (20) has vertically hung louvres (30) which are arranged to pivot about their vertical axes. A motor (28) is used to turn the louvres, and operation of the motor is initiated by a temperature sensor (22) inside a space which is at least partially bounded by the panel unit. When the temperature in the space is too hot, the sensor causes the motor to operate to open the louvres and to admit cool air, and vice versa.</p> |
