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Carbon brush motor is the general name of the carbon brush of the motor and the carbon brush of the generator

2020-04-13 12:00

The carbon brush motor is the general term for the carbon brush of the motor and the carbon brush of the generator. The carbon brush motor is like the rubber strip of a pencil, with leads on the top and large and small in size.

The role of the motor is to change the direction of the current, divided into DC motors and AC motors. DC motors are used to change the conductive coils of the rotor, thereby changing the magnetic poles of the rotor, thereby changing the movement of the motor. A commutator or slip ring like the rubber strip of a pencil is used as a sliding contact for the introduction and introduction of current. It has good electrical conductivity, thermal conductivity and lubrication properties, and has a certain mechanical strength and reversing spark instinct. Almost all brushed motors use carbon brushes, which are an important part of brushed motors.

The carbon brush motor is suitable for all kinds of motors, generators and shaft machinery. Good commutation performance and long service life. The motor carbon brush is used for the commutator or slip ring of the motor as a sliding contact body for introducing and introducing current. It has good electrical conductivity, thermal conductivity and lubricity, and has a certain mechanical strength and reversing spark instinct. Almost all motors use carbon brushes, which are an important component of the motor. It is widely used in various AC/DC generators, synchronous motors, battery DC motors, lifting motor collector rings, various types of welding machines, etc. With the development of science and technology, the types and operating conditions of motors are becoming more and more diversified. Therefore, various grades of brushes are required to meet these requirements, so the types of brushes are also developing more and more with the development of the motor industry.

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The role of carbon brush motor

1. Add external current to the rotating rotor through carbon brushes

2. Introduce the electrostatic charge on the large shaft to the ground (output current) through carbon brushes (grounded carbon brushes)

3. Change the direction of the current (in the commutator motor, the brush also plays the role of commutation)

4. The shaft (grounding) lead to the rotor grounding protection device, and measure the positive and negative voltage of the rotor to the ground

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