Is it better to choose a electric scooter brushless motor or brush motor?
With the increasing public awareness of electric scooters, the market competition is obviously fierce. In addition to making a fuss about the price and appearance of the products, many companies and businesses have promoted brushes and brushless motors. The promotion of brush motors is one of the highlights. When you see this term, you can’t help thinking that since there are brushless, there must be brushed, so what is the difference between electric scooter brushless motor or brush motor? Let me introduce them in detail.
First of all, let’s understand the meaning of brush motor and brushless motor:
A brushed motor is a rotating electric machine that converts electrical energy into mechanical energy (motor) or converts mechanical energy into electrical energy (generator) with a built-in brush device. The brush motor is the basis of all motors. It has the characteristics of fast starting, timely braking, smooth speed regulation in a large range, and relatively simple control circuit.
The brushless motor is composed of a motor body and a driver, and is a typical mechatronic product. Since the brushless DC motor runs in a self-control mode, it will not add a start winding to the rotor like a synchronous motor that is started under heavy load under variable frequency speed regulation, and it will not oscillate and lose step when the load changes suddenly.
The difference between a brush motor and a brushless motor for electric scooters:
1. Scope of application
Brushless motor: usually used in equipment with relatively high control requirements and high speed, such as aircraft models, precision instruments, etc., which have strict control of motor speed and high speed.
Brushed motors: usually brushed motors are used in power equipment, such as hair dryers, factory motors, household range hoods, self-balancing electric scooters or electric bicycles, and so on.
2. Use effect
Brushless motor: usually digital frequency conversion control, strong controllability, from a few revolutions per minute to tens of thousands of revolutions per minute can be easily achieved. Brushed motors: The old carbon brush motors generally work at a constant speed after starting, and it is not easy to adjust the speed. The series motor can also reach 20,000 rpm, but the service life will be relatively short.
3. The brush motor is a traditional product with relatively stable performance.
The brushless motor is an upgraded product, and its life performance is better than that of the brush motor. However, its control circuit is more complicated, and the requirements for aging and screening of components are stricter. Although the motor has a long life, the control circuit is prone to malfunctions. Therefore, the selection of brushless motors must undergo rigorous reliability tests to ensure that the quality of electric vehicles is better than brushes. You can select the brushed motor by most domestic self-balancing instrument electric scooter manufacturers. It uses carbon brushes as the two contacts of the motor power supply.
It is controlled by the speed control handle and the controller, and the secondary gear reduction and overrunning clutch are used To achieve the steeples speed regulation of electric bicycles 0-20 km/h. The brushed high-speed motor used has high gold content, strong motor reduction gear strength, good wear resistance, and reasonable design, so the repair rate is low; and the cost of repairing and replacing gears and motors is less, which effectively reduces the self-balancing electric. The maintenance cost of the electric scooter or bicycle; and the brush motor can pass the overrunning clutch.
4. Flywheel realizes easy human riding. Brushed motors use brushes for mechanical commutation!
You should adopt to brushless gearless motors that are generally by self-balancing electric scooter manufacturers. The cost of its speed control system is higher than that of a brushed high-speed motor, and the controller is prone to failure during use. Self-balancing electric scooter equipped with brushless motors must run at a speed of more than 35 km/h to give full play to their best work efficiency, but we know that manage to self-balancing electric scooter are as non-motor scooter, and the speed must be 20 Below km/h.
The brushless motor is selected by the self-balancing electric scooter, which reduces the work efficiency, and the desirability is not strong. The main point of its adoption is low noise. The brushless motor uses electronic circuit to commutate! There is a detection element to detect the polarity!
At present, self-balancing electric scooter on the market generally have brush motors. After all, their speed should be controlled below 20KM/h. The desirability of brush motors is better! Also in the actual production process, because the brushed and toothed DC motors are high-speed. Motors and gears have very small teeth and are easy to wear, but they have great strength and strong climbing ability.
The brushless DC motor saves two or three years of the trouble of changing the carbon brushes during use. However, due to the process of controlling the brushless motor, you will require to extremely high precision. Moreover, the price of brushless motor controllers is also higher. In contrast, a DC motor with brushes and gearless, although it is necessary to replace the carbon brushes, it is very easy to replace the carbon brushes, and the control of the motor is relatively simple, the motor runs smoothly, and the safety factor is high.
The work of the electric scooter motor is very simple. The electric scooter battery powers the controller, and the controller determines the amount of power sent to the motor.
After the electric scooter motor gets the right amount of power, it will energize the magnet to rotate the shaft of the electric scooter, turn the gears and move the electric scooter and rider forward.
Unless you plan to hardly use electric scooters, you must avoid friction motors at all costs.
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