Hengli Motor Classroom | Mechanical Core Power
Motors are widely used in various occasions, and Hengli Motors' products are also exported to all over the world. Today, Hengli Motors' editor will take you to have a deeper understanding of motors Motor (English: Electricmachinery， Commonly known as "motor", it 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 known as 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 brushed DC motors according to their structure and working principle.
2) AC motors can also be divided into single-phase motors and three-phase motors.
2. According to their structure and working principle, they 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) Hengli 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 running single-phase asynchronous motor, capacitor starting single-phase asynchronous motor, and phase separated single-phase asynchronous motor.
4. Hengli motors can be divided into drive motors and control motors according to their purposes.
1) Electric motors for driving can be divided into: electric motors for power tools (including drilling, polishing, grinding, slotting, cutting, hole enlargement, etc.), electric motors for household appliances (including washing machines, electric fans, refrigerators, air conditioners, tape recorders, video recorders, DVD players, vacuum cleaners, cameras, hair dryers, electric shavers, etc.)
Use electric motors and other general small mechanical equipment (including various small machine tools, small machinery, medical devices, electronic instruments, etc.) with electric motors.
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 type induction motors (formerly known as squirrel cage asynchronous motors) and wound rotor induction motors (formerly known as wound type asynchronous motors).
6. According to the operating speed, it can be divided into high-speed motors, low-speed motors, constant speed motors, and speed regulating motors. Low speed motors are divided into gear reduction motors, electromagnetic reduction motors, torque motors, and claw pole synchronous motors.
The working principle of a DC generator is to convert the alternating electromotive force induced in the armature coil into a DC electromotive force when it is led out from the brush end by the commutator in conjunction with the commutation effect of the electric brush.
The direction of induced electromotive force is determined according to the right-hand rule (the magnetic induction line points towards the palm of the hand, the thumb points towards the direction of the conductor's movement, and the other four fingers point towards the direction of induced electromotive force in the conductor).
The direction of force acting on a conductor is determined by the left-hand rule. This pair of electromagnetic forces forms a torque acting on the armature, which is called electromagnetic torque in a rotating motor. The direction of the torque is counterclockwise, attempting to make the armature rotate counterclockwise. If this electromagnetic torque can overcome the resistance torque on the armature (such as the resistance torque caused by friction and other load torques), the armature can rotate counterclockwise.
DC motor is an electric motor that operates on DC working voltage and is widely used in recorders, video recorders, DVD players, electric shavers, hair dryers, electronic watches, toys, etc.
