Carbon brushes are electrical contact components between the stator (field coil) and the motor armature) of the electric motor, which is the type of component consumed during use, depending on the surface condition of the Composite or A power slide that wears fast or slow wear, in addition there are cases of wear and tear between the poles or brushes. Therefore, users must monitor frequently to detect abrasion and replace accordingly. The manufacturer recommends using a genuine brush to avoid the risk of the engine and the protection of the commutator and the skip relay.
Brush Operation Principle:
Carbon coil or spring rolls for continuous contact and sliding on the commutator or junction surface, maintaining the power to the rotor. Brushes from the brushes edge to the surface brushes are designed so that the clearance is from 0.8 to 1.0mm so brushes can move easily when the spring is pushed. If the excess is too high, the brush will shake, shake to make contact unstable, wear out irregularly and be easily ignited. In contrast, if the distance between the brush and the brush holder is too small, during use will cause the temperature to rise causing the brush to expand due to heat, leading to brush strokes and the holder will damage the brush and the brush. brush holder
Choosing the right Coal Brush:
In order to choose the most suitable brush for electric motors, the user should provide the following information:
- Selection of brush material: The user should provide the specifications of the brush motor such as speed, current, voltage and power.
- Choose mechanical shape: User should provide information and brush size:
Thick x Width x Long, in addition to need more information about the core, wire length and wire diameter