| 摘要 |
PURPOSE:To make it possible to set blow-off period of fixed flow as preferred by a method wherein a fluid blow-off device provided with adjustable blow-off period of fixed flow for an air conditioner or the like can convert the air stream to oscillatory flow upon temperature difference between two points in passages of left deflected air flow and right deflected air flow respectively reaching preset level as set optionally. CONSTITUTION:A fluid blow-off device causes cool air A from an air conditioner to blow either deflected left AL or deflected right AR by turning on or off a control coil 7 to cause a control passage to open or shut respectively. A circuit 18 to detect temperature difference which is to output temperature difference signals correscponding to a temperature difference on the basis of signals from a pair of thermo-sensitive devices 19, 20 is provided near air blow outlets of the subject blow-off device. In addition to this, a circuit to determine time period of fixed flow blowing 40 is provided which can function for outputting fixed flow signals as soon as the control switch 10 of the air conditioner is turned on and also for outputting oscillatory flow signals upon the temperature difference signal reaching preset level as set for optional preference. When the oscillatory flow signal is outputted, the control coil 7 is controlled through a switching circuit 17 on the basis of blow-off time ratio of output from a comparator circuit 14. |
