[Guide] Give everyone the basic knowledge of hollow cup motors
The structure of the hollow cup motor is divided into: back cover, terminal block, brush end cover, brush, commutator, cup winding (rotor), shaft, gasket, plain bearing, housing, magnet (stator), flange, Locating ring.
The stator consists of a permanent magnet, a housing, and a flange. The housing provides a constant magnetic field, making the motor iron-free. No soft magnetic teeth. The generated torque is uniform, which enables smooth operation even at low speeds. At higher speeds, the motor can reduce vibration and noise. Rotor with windings and commutator. The windings are connected to the shaft via a so-called commutating plate. The coil moves in an air gap between the magnet and the housing. The commutation system uses a pair of precious metal brushes to reduce brush sparks. Reduced brush sparks produce less electromagnetic emissions.
The specific structure is shown in the following figure：
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