AC motor is a communication motor, while DC motor is a DC motor.
1. The energy of transformation is different.
Communication motor realizes the conversion between mechanical energy and communication electric energy, while DC motor realizes the conversion between mechanical energy and DC electric energy.
2. Different structures
The structure of communication motor is simpler than that of DC motor. It does not need commutator, but DC motor needs commutator. DC motor is composed of armature, rotor, armature core, armature winding, commutator and fan.
3. Different Uses
Communication motor has a wider scope of application, because the structure of communication motor is simpler, less pollution and noise. DC motors are mainly used in power machinery or other wide speed control equipment, such as gantry planer, rolling mill and electric crawler traction. Communication motors are mainly used in power machinery or other equipment with small speed range, such as ordinary fans, pumps, machine tools, field cranes, etc.
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