Carbon brush buckling structure for direct-current motor

Abstract

The invention relates to a carbon brush buckling structure for a direct-current motor, which consists of a carbon brush post (1) and an assembly post (2); the assembly post (2) is arranged at the upper end of the carbon brush post (1); and a connecting part of the assembly post (2) and the carbon brush post (1) is provided with two self-lock buckling grooves (3) which are in central symmetry. The carbon brush buckling structure is not easy to loose or fall off, avoids the problem that a carbon brush and a carbon brush holder are not coordinated properly, eliminates clearance short circuits caused by poor contact in the using process, ensures stable work of a motor, effectively improves periodically electrical noise of the motor, and improves the service life of the motor.

Description

Technical field: [0001] The invention relates to a carbon brush buckle structure of a DC motor. Background technique: [0002] The carbon brush is the part in the brushed motor that is on the surface of the commutator. When the motor rotates, the electric energy is delivered to the coil through the commutator. Because its main component is carbon, it is called carbon brush, which is easy to wear and should be used. Regular maintenance and replacement, and cleaning the carbon brush. Carbon brushes are used to change the conductive coils of the rotor, thereby changing the rotor magnetic poles, thereby changing the motion of the motor. Because the carbon brush is relatively soft, wear-resistant, smooth, not easy to spark, and has good electrical conductivity, it is not easy to oxidize, deteriorate, and deform, so it is generally used for conductive contact surfaces. However, the traditional carbon brush and the carbon brush holder belong to the straight-edge fit, which is eas...

AI Technical Summary

Problems solved by technology

However, the traditional carbon brushes and carbon brush holders are fitted with straight sides, which are easy to fall off and loosen, which can easily cause problems such as poor contact between the carbon brushes and the commutator during the power-on operation of the motor.

Moreover, because the carbon brushes and carbon brush holders are not properly assembled, intermittent short circuits due to poor contact are prone to occur during use, resulting in the motor not working, and causing periodic electrical noise of the motor, reducing the service life of the motor

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