Electricmachinery (commonly known as “motor”) refers to an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction.
The motor is represented by the letter M (formerly D) in the circuit, and its main function is to generate driving torque as a power source for electrical appliances or various machinery. The generator is represented by the letter G in the circuit, and its main function is to convert mechanical energy into electrical energy.
1. According to the type of working power supply, it can be divided into DC motors and AC motors.
1) DC motors can be divided into brushless DC motors and brushless DC motors according to their structure and working principle.
2) Among them, AC motors can also be divided into single-phase motors and three-phase motors.
2. According to structure and working principle, it can be divided into DC motors, asynchronous motors, and synchronous motors.
1) Synchronous motors can be divided into permanent magnet synchronous motors, reluctance synchronous motors, and hysteresis synchronous motors.
2) Asynchronous motors can be divided into induction motors and AC commutator motors.
3. According to the starting and operating modes, it can be divided into: capacitor starting single-phase asynchronous motor, capacitor operating single-phase asynchronous motor, capacitor starting operating single-phase asynchronous motor, and split phase single-phase asynchronous motor.
4. According to usage, it can be divided into driving motors and control motors.
1) Electric motors for driving can be divided into: electric tools (including drilling, polishing, polishing, slotting, cutting, expanding, and other tools); Household appliances (including washing machines, electric fans, refrigerators, air conditioners, tape recorders, video recorders, DVD players, vacuum cleaners, cameras, hair dryers, electric shavers, etc.); Electric motors for other general small mechanical equipment (including various small machine tools, small machinery, medical devices, electronic instruments, etc.).
2) Control motors are further divided into stepper motors and servo motors.
5. According to the structure of the rotor, it can be divided into cage induction motors (formerly known as squirrel cage asynchronous motors) and wound rotor induction motors (formerly known as wound asynchronous motors).
6. According to the operating speed, it can be divided into high-speed motors, low-speed motors, constant speed motors, and variable speed motors. Low speed motors are further divided into gear reduction motors, electromagnetic reduction motors, torque motors, and claw pole synchronous motors.
DC motors are motors that rely on DC operating voltage and are widely used in recorders, video recorders, DVD players, electric shavers, hair dryers, electronic watches, toys, and more.
When the power supply line is not very long, the relationship between power and wire diameter (national standard copper wire)
Post time: Nov-03-2023
