What is a shaded pole engine?

The term "shaded pole engine" usually applies to one of the simplest alternate current single -phase induction motors used today. Typical configurations basically consist of a rotor and stator pole assembly. As an induction engine, this engine relies on electromagnetic forces and creates torque. The simplicity of this engine is beneficial and limiting, which is effective for limited application range. There are many variations of the pole engine, although many principles used in their design provide the basis for other comparable engines. The shaded winding consists of copper wires that usually produce a weak magnetic field as soon as the rotor begins to rotate. This magnetic field is often used to create an increased torque that can be changed to maintain and adjust the speed of the rotor. A shaded-pole engine is a unique induction engine because the winding of copper shade does not receive direct electricRicky charge. Instead, it is a magnetic flow created by the interactions of the pole winding with a movable rotor, which further increases torque.

There are several advantages of using a shadow pole engine and several limitations of what they can achieve. Configuration of these engines is often considered simple, making them harsh and cheaper than many comparable designs. However, this simplicity means that the force that can be produced is weak compared to other engines. The low initial torque of these engines also means that it is best suited for small electronic devices.

For the use of a shadow pole engine, the device must have an easily lowered load due to low torque and performance production. Common applications include household fans that usually require low torque and adjustable rotor speeds. Other applications may include many low -performance devices,such as hair dryers, humidifiers and some electronic toys. In many cases, this type of engine will be the most unpleasant and least expensive part of the household device.

In general, the shaded pole engine is defined by its size, a horse's power and a primary function. Variants usually stem from increasing or reducing the quantity of shaded and non -wall windings in the pole. For example, large box fans are likely to have a more complex shaded pole engine than small personal fans with much smaller fan blades.