Silicon controlled energy-saving stepless speed regulating fan

Abstract

The invention discloses a thyristor energy-saving stepless speed regulation fan, which comprises a potentiometer, a first resistor, a capacitor, a trigger diode, a thyristor and a fan motor, wherein one end of the trigger diode is connected to the control end of the thyristor connected, the other end of which is connected to the series connection point of the first resistor and the capacitor, and the silicon controlled rectifier is connected in parallel with the series circuit formed by the potentiometer, the first resistor and the capacitor through its output end, and then connected in series with the fan motor, The fan motor includes a stator and a rotor, wherein the stator includes a stator core and a stator coil wound on the stator core, sixteen slots are arranged on the stator core, and the stator coil composed of the main and auxiliary windings is installed in the trunking. The invention can realize smooth and precise stepless speed regulation of the fan, is not limited by the gear position, occupies a small volume, has a wider application range, and improves the speed regulation range.

Description

technical field [0001] The invention relates to a speed-regulating fan, in particular to a thyristor energy-saving stepless speed-regulating fan. Background technique [0002] Generally speaking, the speed regulation of the fan is realized by voltage regulation. The widely used method is the motor tap speed regulation method, which leads 3 taps from the motor to adjust the speed. The disadvantage is that the motor manufacturing is too complicated; Step-down speed regulation, which needs to use several sets of capacitors to realize speed regulation, takes up a lot of space; resistor voltage regulation, although it can also achieve the purpose, but the insufficient heat generation reduces its application rate, and the above methods are useless. All of them can only achieve three-speed speed regulation, and the speed regulation process is not smooth. It is very inappropriate for fans that require precise speed regulation and limited space, not to mention its cost and energy con...

AI Technical Summary

Problems solved by technology

[0002] Generally speaking, the speed regulation of the fan is realized by voltage regulation. The widely used method is the motor tap speed regulation method, which leads 3 taps from the motor to adjust the speed. The disadvantage is that the motor manufacturing is too complicated; Step-down speed regulation, which needs to use several sets of capacitors to realize speed regulation, takes up a lot of space; resistor voltage regulation, although it can also achieve the purpose, but the insufficient heat generation reduces its application rate, and the above methods are useless. All of them can only achieve three-speed speed regulation, and the speed regulation process is not smooth. It is very inappropriate for fans that require precise speed regulation and limited space, not to mention its cost and energy consumption.

[0003] In addition, most of the existing fan motors adopt a four-pole and sixteen-slot design. The maximum speed of this type of motor is relatively small, generally not exceeding 1350rpm. A lot of cost is added, and the range of speed regulation is therefore limited

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