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    • 2. 发明申请
    • FAN BLADE ASSEMLBY
    • 风扇叶片ASSEMLBY
    • US20120107127A1
    • 2012-05-03
    • US12916537
    • 2010-10-30
    • Wan-Ju CHANG
    • Wan-Ju CHANG
    • F04D29/38
    • F04D29/388F04D29/668
    • A fan blade assembly comprises: a motor-mounting seat and a plurality of spaced-apart fan blades extending from a periphery of the motor-mounting seat. The fan blades each are provided with a vibration-blocking unit in the form of a concave structure, which makes the fan blades become a non-flat structure. The vibration-blocking unit reduces the vibration and noise of the fan blade assembly, it further increases the structural strength while relatively reducing the thickness of the fan blades, so that the material cost of the fan blades is reduced.
    • 风扇叶片组件包括:电动机安装座和从电动机安装座的周边延伸的多个间隔开的风扇叶片。 风扇叶片各自设置有凹形结构的振动阻挡单元,这使得风扇叶片变成非平坦结构。 防振单元减少风扇叶片组件的振动和噪音,进一步增加了结构强度,同时相对减小了风扇叶片的厚度,从而降低了风扇叶片的材料成本。
    • 4. 发明申请
    • Switch and Motor-Cooling Device for an Electric Fan
    • 电风扇开关和电机冷却装置
    • US20110052434A1
    • 2011-03-03
    • US12553085
    • 2009-09-02
    • Wan-Ju CHANG
    • Wan-Ju CHANG
    • F04D25/08F04D29/52
    • F04D25/082
    • A switch and a motor-cooling device for an electric fan comprise a motor, a housing, a controller and a knob. The housing is defined with a concave portion in an end thereof, and on the bottom of the concave portion are provided plural assembling portions. The concave portion is formed with an outward-enlarged arc-shaped guiding surface around a periphery thereof and interiorly defined with plural inlet holes. The controller and the knob are assembled to the assembling portions. The knob is exteriorly provided with a tapered arc-shaped guiding surface. With the guiding surface of the housing and the guiding surface of the knob, the air within the angular scope of the concave portion and behind the knob can be completely sucked into the concave portion, thus increasing the amount of the air sucked into the housing and obtaining the optimal heat dissipation efficiency.
    • 用于电动风扇的开关和电动机冷却装置包括电动机,壳体,控制器和旋钮。 壳体的端部设有凹部,在凹部的底部设置有多个组装部。 凹部形成有在其周边的外侧扩大的圆弧状的引导面,内部形成有多个入口孔。 控制器和旋钮组装到组装部分。 旋钮外部设有一个锥形的弧形引导面。 利用壳体的引导表面和旋钮的引导表面,凹部的角度范围内的旋钮之后的空气可以被完全吸入凹部,从而增加吸入壳体的空气量, 获得最佳的散热效率。