The utility model discloses an automatic speed regulating fan, which belongs to an electric appliance for daily life. Including the fan power supply fan load Ro, Vi, and the fan load and variable resistor between R fan power supply, also includes a control device, the slider connected to the control device comprises an iron core coil and the variable resistor R, kerosene thermometer and control the power of V, the coal oil medium in the upper floating thermometer with metal connection film, kerosene thermometer resistor are respectively arranged on both sides of the inner side of the metal rod, the metal connecting piece are respectively connected with the resistor and the metal rod sliding electric power; the top pole is connected with the metal rod, the upper part of the other pole through the coil and resistor connected to the variable resistor R and a reset spring is connected to the sliding piece the opposite side of the iron core. The automatic speed regulating fan of the utility model can adjust the fan speed according to the room temperature.
【技术实现步骤摘要】
【技术保护点】
一种自动调速风扇，包括风扇负载Ｒｏ，风扇供电电源Ｖｉ，以及风扇负载与风扇供电电源间的可变电阻器Ｒ，其特征在于：还包括控制装置，该控制装置包括铁芯（６）与所述可变电阻器Ｒ的滑动片相连的线圈（５），煤油温度计（４）和控制电源Ｖ，其中煤油温度计内介质上部飘浮有金属连接片（１），煤油温度计内侧相对两边分别设有电阻片（３）和金属杆（２），上述金属连接片分别与电阻片和金属杆滑动电连接；电源一极连接上述金属杆的顶部，另一极通过上述线圈与电阻片的上部连接；所述可变电阻器Ｒ滑动片在铁芯相对侧连接有复位弹簧（７）。
【技术特征摘要】
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