Introduction of brush motor and non brush motor in micro brushless motor suppliers
Brush motor
It is selected by most domestic electric bicycle manufacturers. It uses carbon brush as the two contacts of the motor power supply, uses the speed regulating handle and controller to control, and achieves the stepless speed regulation of 0-20km / h of electric bicycle through the secondary gear deceleration and overrunning clutch. The brush high-speed motor adopted has high gold content, strong strength of motor reduction gear, good wear resistance, reasonable design, so the repair rate is low; moreover, the cost of repair and replacement of gear and motor is less, effectively reducing the maintenance cost of electric bicycle; and the brush motor can be easily driven by manpower by surpassing the clutch and flywheel. Brush motor is to use brush mechanical reversing!
Brushless motor
The electric bicycle manufacturers are generally using the brush less toothless motor. The cost of its speed control system is higher than that of the speed control system of the brush high-speed motor, and the controller is prone to failure in use. The best working efficiency of the electric bicycle equipped with the brush free motor can only be achieved when its running speed is more than 35 km / h, but we know that the electric bicycle is managed as a non motor vehicle, and its speed must be less than 20 km / h, so the selection of the brush free motor by the electric bicycle reduces the working efficiency, which is not very desirable. The main point it is used for is low noise. BLDCM is the use of electronic circuit commutation! There are detection elements to detect polarity!
