The role of carbon brush in hand drill?
There is only carbon brush in the motor with only the commutator or slip ring, and the common AC asynchronous motor is a squirrel cage structure without carbon brush. The motor is the abbreviation of the motor, that is, the motor. The motor can be divided into DC motor and AC motor, DC motor due to the rotation of the rotor, and the need to constantly switch according to current coil position changes in the magnetic field in the direction of the coil, so the need for a DC motor commutator.The motor (motor) in the hand drill is a AC series motor.In addition to induction type AC asynchronous motors, there is no outside. Other motors are provided, as long as the rotor has a reversing ring.
In order for the rotor to produce a magnetic field, the magnetic current must be input into the coil of the rotor. The carbon brush is used to send the heavy magnetic current into the rotor coil by the magneto generator.
After cutting a wire through a magnetic field, an electric current is generated in the wire. The generator cuts the wires by rotating the magnetic field. A rotating magnetic field is a rotor, and the wire to be cut is a stator.
To understand the role of carbon brushes, you first need to understand the basic principles of electric energy and kinetic energy conversion, that is, to understand the principles of the motor. Principles of power generation.
