BLADE DRIVING DEVICE OF SWING RESISTOR
PROBLEM TO BE SOLVED: To provide a blade driving device of a swing resistor, which can easily and accurately reduce noise due to the driving of a blade, and can realize the minute drive control of the blade with a simple constitution. SOLUTION: A pair of right and left shape-memory alloy (SMA) wires...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a blade driving device of a swing resistor, which can easily and accurately reduce noise due to the driving of a blade, and can realize the minute drive control of the blade with a simple constitution. SOLUTION: A pair of right and left shape-memory alloy (SMA) wires 14L, 14R, which contract with current heating, are connected to an oscillating shaft 11 of vertical blades 10a to 10e in such a manner that the oscillating shaft 11 can be rotated in accordance with the contraction of the shape-memory alloy (SMA) wires 14L, 14R. The vertical blades 10a to 10e are pivoted swingably to a duct outlet of a onboard air-conditioning device, and are swung from side to side by alternately passing electric current through both of the SMA wires 14L, 14R. The resistance values of each of the SMA wires 14L, 14R are detected at this time. The resistance values are obtained as the indication value of the oscillation position of the vertical blades 10a to 10e, and are incorporated in energization control. COPYRIGHT: (C)2007,JPO&INPIT |
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