Energy-saving electric fan with functions of intelligent gear shifting and automatic natural wind control

Abstract

The invention relates to an energy-saving electric fan with functions of intelligent gear shifting and automatic natural wind control, aiming to effectively solve the problems that motors are easy to heat after long-time use of fans and users are dizzy due to large wind power. The technical scheme includes that the energy-saving electric fan comprises a fan cover, a support, a base, a motor and fan blades; the support is mounted on the base; the fan cover is mounted on the base through a motor casing; the motor is mounted in the motor casing; the fan blades mounted on a motor rotating rod are arranged in the fan cover; an telescopic guide rod is mounted on the motor casing; three pyroelectric infrared sensors are respectively mounted at the upper end of the telescopic guide rod; a natural wind indicator, a top grade indicator, middle grade indicator and a lower grade indicator are mounted on the support side by side; a upper-limit-temperature detecting sensor, a lower-limit-temperature detecting senor and a photoconductive resistor are mounted on the lower portion of the support side by side; a power supply switch, a natural wind forcing switch and a reset button are sequentially mounted on the base; and a control circuit is mounted in the base through a circuit board. Position of a user can be automatically detected; rotating speed of the electric fan can be changed, and controlled in real time; and accordingly, the energy-saving electric fan is good in effect.

Description

technical field [0001] The invention relates to household appliances, in particular to an intelligent shifting automatic natural wind energy-saving electric fan. Background technique [0002] Currently known ordinary electric fans require the user to shift gears when shifting gears, and cannot control the speed of the electric fans well in real time. The electric fans are generally divided into three gears: high, medium, and low. The relationship is: 99.9%, 66.9%, and 33.3%. Generally, you will directly choose to run at full power at the high-end position. After a long time, the motor tends to heat up, which will accelerate the aging of the motor and consume more electricity. In addition, the high-end position is close to the personnel , When the electric fan rotates at high speed, the user is too close to the electric fan, the wind is too strong, it is easy to make people feel uncomfortable, and it is easy to cause symptoms such as dizziness. Most people's operating habits...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide an intelligent shifting automatic natural wind energy-saving electric fan, which

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