Rotor structure and materials of shaded pole motor

Shaded pole motors are a type of single-phase induction motor. Unlike other types of single-phase induction motors, shaded pole motors don't use a start capacitor or a start winding to kickstart rotation. Instead, they rely on a simple design that creates a rotating magnetic field.

The rotor of a shaded pole motor is made of a solid metal cylinder or a stack of metal laminations. The rotor typically has a unique design where a portion of it is surrounded by a copper or aluminum shading coil. This coil is responsible for creating the shaded pole effect, which induces a phase shift in the magnetic field and creates the starting torque needed for the motor to begin rotating.

The materials used in the rotor of a shaded pole motor are typically low-cost metals like aluminum or steel. These materials provide the necessary magnetic properties and mechanical strength required for the motor to operate efficiently. The rotor may also be coated or treated to prevent corrosion and improve its longevity.

Overall, the rotor structure and materials of a shaded pole motor are designed to be simple, cost-effective, and reliable for applications where low starting torque and continuous operation are required, such as in small fans, appliances, and some HVAC systems.

Established in 1992,  Keli motor has become one of the largest micro motor R&D, manufacturers, and exporters in China, its No. 1 sales and production of shaded pole motors. In addition to shaded pole motors, we also produce and sell stepper motor, universal motor, BLDC motor, etc.