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Shaded Pole Motor has a very wide range of applications. It is even more used than other motors. It is used in home appliances we use every day. So why do household appliances generally use shaded pole motors? Let's analyze it.
On the one hand, for energy conservation and resource conservation considerations, shaded pole motors are gradually applied to various household appliances. Shaded pole motors have the advantages of simple structure, reliable operation, low price, low noise and immunity from radio interference. They are widely used in household appliances to drag loads of fans, such as electric fans, hair dryers and electric appliances. . It belongs to a large category of fractional horsepower motors.
A shaded pole motor is an AC single-phase induction motor. The auxiliary winding is composed of a copper ring, called a shaded pole coil. The current in the coil delays the phase of the magnetic flux at the pole to provide a rotating magnetic field. The direction of rotation is from the non-shaded pole. To the shaded pole ring.
The design of the shaded pole coil (ring) makes the axis of the magnetic pole deviate from the axis of the main pole magnetic pole, and the magnetic field coil and the additional shaded pole coil generate a weak rotating magnetic field. When the stator is energized, the magnetic flux of the magnetic pole body generates a voltage in the shaded pole coil. The shaded pole coil acts as the secondary winding of the transformer. The current in the secondary winding of the transformer is not synchronized with the current in the primary winding, and the magnetic flux of the shaded pole is not synchronized with the magnetic flux of the main pole.
In a shaded pole motor, the rotor is placed in a simple c-shaped core, and half of each magnetic pole is covered by a shaded pole coil. When an alternating current passes through the power supply coil, a pulsating magnetic flux is generated. When the magnetic flux passing through the shading coil changes, voltage and current are induced in the shaded pole coil, which correspond to the change of the magnetic flux from the power coil. Therefore, the magnetic flux under the shaded-pole coil lags behind the magnetic flux of the rest of the coil. The rotor generates a small rotation in the magnetic flux, so that the rotor rotates.
Hangzhou Jinjiu Electric Co., Ltd. is a Shaded Pole Motor Manufacturer, welcome to visit our official website.