The use of motor carbon brush springs can effectively improve the life of the motor and reduce the space, giving full play to its advantages in a limited space. Many traditional brushed motors still use torsion springs or compression springs. Traditional springs can no longer meet the performance improvement requirements of brushed motors. Therefore, more and more motor manufacturers have begun to develop carbon brush springs and put them into use.
The types of carbon brush motor springs can be divided into two categories, one is formed by steel sheet, and the other is formed by steel wire. The steel sheets are mainly made of stainless steel 301, and the steel wires are made of carbon steel, stainless steel, piano steel, phosphor bronze and other materials. With the development, products have higher and higher requirements for carbon brush motors, and their life and performance are also facing severe test. The use of steel sheet type springs can effectively prolong the life and improve performance. Relatively speaking, steel sheet type coil springs are the best choice among carbon brush motor springs.
The advantage of the motor is to ensure the stability of the carbon brush inside the motor, reduce noise, and secondly reduce the degree of wear, allowing the carbon brush to rub against the last section of carbon brush that cannot be touched by the compression spring (generally, the last section of the compression spring matching is often wasteful, and the life of the motor ends here), the constant force spring is compared with the compression spring,the traditional compression spring or torsion spring waits until the carbon brush is used for a certain period of time, the carbon gradually decreases, and finally there is still one third of the carbon remaining because of the spring For the sake of not being able to touch the friction. The constant force spring uses another method to increase the contact time of the carbon brush, so that the previously wasted carbon can continue to be used, thus greatly increasing the life of the motor. In short, although it is some small details, it is determined The length of life of a carbon brush motor.