Automotive Carbon Brush Holders

The automotive carbon brush holder applies appropriate pressure on the carbon brushes through devices such as springs to ensure that the carbon brushes maintain stable contact with the commutator or collector ring of the rotor coil, reducing friction and wear.

Automotive carbon brush holders Proper design of the carbon brush holder also protects the carbon brushes from mechanical damage and overheating, extending the life of the brushes.

Structure and Material

Structure: Automotive carbon brush holders for automobiles usually consist of a brush grip, a brush holder body, a spring and other parts. The brush grip is used to fix the carbon brushes, the brush holder body connects the brush grip with other parts of the generator, and the spring exerts pressure on the carbon brushes.

Materials: Automotive carbon brush holders are usually made of materials that require good electrical conductivity, mechanical strength and corrosion resistance. Common materials include copper, aluminium and certain alloys. Copper is widely used because of its good electrical conductivity and corrosion resistance, while aluminium is used in some high-speed generators because of its lighter weight and higher thermal conductivity.