First, the basic structure of DC motor
The DC motor consists of two parts, a stator and a rotor, with a certain air gap.
The stator of the DC motor is composed of a base, a main magnetic pole, a commutating magnetic pole, front and rear end covers, and a brush holder. The main magnetic pole is the main component that generates the air gap magnetic field of the DC motor, and is composed of a permanent magnet or a laminated core with a DC excitation winding.
The rotor of a DC motor is composed of an armature, a commutator (also called a commutator), and a rotating shaft. The armature is composed of two parts: an armature core and an armature winding. The armature core is formed by stacking silicon steel sheets with evenly distributed coggings at its outer circumference, and the armature windings are embedded in these slots.
The commutator is a mechanical rectifying component. After the commutator segments are stacked into a cylindrical shape, they are integrally formed by metal clips or plastics. The commutator segments are insulated from each other. Commutator quality has a great impact on operational reliability.
If you want to buy a medical device motor, please pay attention to Optical Encoder Motors.
