| 摘要 |
PURPOSE: Provided is a nozzle for controlling direction of air blowing, a wind direction part mounted therein is automatically rotated down at over the fixed temperature to move hot air down, thereby heating is effective at a place having a high ceiling. CONSTITUTION: The nozzle comprises: the wind direction part(200) mounted in an air nozzle body(100), which can be moved up and down and has horizontal air guides(230), a connecting equipment(220) having a long hole(221) located at the back-middle part of the wind direction part(200); a driving part(300) mounted to the back of the wind direction part(200), which comprises a center shaft(360), an operating spring(320), an operating shaft(350) of which one end is connected with the long hole(221) movably to up and down and the other end is connected with an operating plate(340), a return spring(330) to return the operating plate(340), wherein the operating spring(320) comprises shape-memory alloy material having a fixed expansion length according to temperatures.
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