Slip ring brush and brush holder there is a gap between

The role of the generator slip ring carbon brushes generally used in the DC motor is used and implemented in conjunction commutation commutation, the DC becomes "AC", the drive DC motor rotation. Brushless DC motor is now more widely, it uses thyristor commutation circuit instead of brushes to achieve, you can achieve high-speed, large-capacity, low noise. Some also use the AC motor carbon brushes and conductive ring, for example, has its rotor windings, how to provide for rotation of the rotor current? Carbon brush with conductive ring can be achieved. The role of the commutator and the switching current on the current direction of the motor is the role of the brush (except the outer squirrel-cage motor) conduction current slidable contact body. Separate Slip Ring in DC, it also bears on the armature winding alternating electromotive force induced in for commutation (rectifier) ​​task. Unlike other high-current slip ring products, so choose your own slip ring products are important: the appropriate range, the proper accuracy, appropriate installation method, suitable output, etc., can affect the product's performance. As the brush and slip ring there is a gap between the brush holder and brush holder as a fixing member (such as the stems, etc.) under the stress of slight deformation of the brush section are slightly larger than the radius of curvature of the commutator or collector ring radius of curvature, which in the motor is running, the commutator or collector ring of the contact cross-sectional area of ​​the brush is not all, but only part of the area. Therefore, we must be cambered brush slip ring grinding, and make the commutator or collector ring basic agreement. Practical operation, the brush arc facing the commutator or collector ring contact area of ​​not less than 75% of a single brush section.

JINPAT Electronics is a leading manufacturer in industrial slip rings. We commit ourselves to the development, designing and manufacturing of different types of high quality slip rings for a vast variety of applications. We provide standard products as well as customized products according to your needs. We have also collaborated with Consortium of Industry including Military Industry and Universities in China.

Brush can be used in dc motor or ac motor commutator

brush slip ring can be used in dc motor or ac motor commutator, such as general electric tools, such as hand electric drill and Angle of grinding machine, use it. He is used to and cooperate to achieve motor current commutation commutator,
Brush (except squirrel-cage motor) is the motor conduction current sliding contact. In dc motor, it also shoulders the induction in the armature winding alternating emf, the reversing (rectifier) task. The practice proved: the reliability of the motor running, to a large extent depends on the performance of the brush.
According to the transmission medium to distinguish, slip ring was divided into smooth electrical slip ring, fluid slip ring, ring, can also be popular are collectively referred to as "rotating connected" or "spin". Slip rings are usually installed in the device's center of rotation, is mainly composed of rotating and stationary of two parts. Rotating part of the rotation of the connection structure and then rotating movement, known as the "rotor", still partially connected devices fixed structure of energy, called "stator".
collector rings, also commonly referred to as the convergence of carbon brush and slip ring, collecting ring, ring, spin, rotation electric joint mechanical equipment 360 ° of continuous rotation at the same time, also need multiple motion on the body of revolution. Is exercise, you need energy, such as electric energy, fluid pressure energy. Sometimes, also need to control signal source, such as optical signal and high frequency signal. Any relatively continuous rotation between 360 ° electrical components need transfer function power, weak current signal, optical signal, different energy medium such as air pressure, hydraulic pressure, oil pressure, to ensure that the electrical appliances in the rotary motion as well as free movement of the mechanical and electrical equipment, must use rotating connected device.