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<p>Working power classification</p><p>According to the different working power of the motor, it can be divided into DC motor and AC motor. Among them, AC <a href="https://www.pm-motor.com/" target="_blank">motors</a> are divided into single-phase motors and three-phase motors.</p><p><br></p><p>Structure and working principle</p><p>According to the different structure and working principle of the motor, it can be divided into DC motor, asynchronous motor and synchronous motor.</p><p><br></p><p><a href="https://www.pm-motor.com/" rel="noopener noreferrer" target="_blank"><strong>Synchronous motors</strong></a> can be divided into permanent magnet <a href="https://www.pm-motor.com/" target="_blank">synchronous motors</a>, reluctance synchronous motors and hysteresis synchronous motors.</p><p><br></p><p>Asynchronous motors can be divided into induction motors and AC commutator motors. Induction motors are divided into three-phase asynchronous motors, single-phase asynchronous motors and shaded pole asynchronous motors. AC commutator motors are divided into single-phase series-excited motors, AC-DC dual-use motors and repulsion motors.</p><p><br></p><p>According to the structure and working principle, DC motors can be divided into brushless DC motors and brushless DC motors. Brush DC motors can be divided into permanent magnet DC motors and electromagnetic DC motors. Electromagnetic DC motors are divided into series excited DC motors, parallel excited DC motors, other excited DC motors and compound excited DC motors. Permanent magnet DC motors are divided into rare earth permanent magnet DC motors, ferrite permanent magnet DC motors and aluminum nickel cobalt permanent magnet DC motors.</p><p><br></p><p> </p><p><br></p><p>Start and run mode</p><p><br></p><p>According to the different starting and running modes of the motor, it can be divided into capacitor starting single-phase asynchronous motor, capacitor running single-phase asynchronous motor, capacitor starting single-phase asynchronous motor and split-phase single-phase asynchronous motor.</p><p><br></p><p> </p><p><br></p><p>According to the purpose, it can be divided into drive motor and control motor.</p><p><br></p><p>The driving motor is divided into electric tools (including drilling, polishing, polishing, slotting, cutting, reaming, etc.), motors for household appliances (including washing machines, electric fans, refrigerators, air conditioners, recorders, video recorders, VCD, vacuum cleaners, Cameras, hair dryers, etc.), electric shavers, etc.) and other general small mechanical equipment (including various small mechanical equipment, machine tool motors, small machinery, medical equipment, electronic instruments, etc.)</p><p>The control motor is divided into stepping motor and servo motor.</p><p><br></p><p> </p><p><br></p><p>Rotor structure classification</p><p>According to the different rotor structure, the motor can be divided into cage asynchronous motor (the old standard is called squirrel cage asynchronous motor) and winding asynchronous motor (the old standard is called winding asynchronous motor).</p><p><br></p><p> </p><p><br></p><p>Classification according to running speed</p><p><br></p><p>According to the different operating speed of the motor, it can be divided into high-speed motor, low-speed motor, fixed-speed motor and speed-regulated motor.</p><p><br></p><p>Low-speed motors are divided into gear motors, electromagnetic motors, torque motors and claw pole <a href="https://www.pm-motor.com/" rel="noopener noreferrer" target="_blank">synchronous motors</a>.</p><p><br></p><p>The speed regulating motor can be divided into three parts: stepping constant speed motor, stepless constant speed motor, stepping variable speed motor and stepless variable speed motor. It can be divided into electromagnetic speed regulating motor, DC speed regulating motor, PWM frequency conversion speed regulating motor and switch reluctance speed regulating motor.</p><p><br></p><p>The rotor speed of an asynchronous motor is always slightly lower than the synchronous speed of the rotating magnetic field.</p><p><br></p><p>The rotor speed of the <a href="https://www.pm-motor.com/" rel="noopener noreferrer" target="_blank">synchronous motor</a> has nothing to do with the load, but it always maintains the synchronous speed.</p>
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