What is the specific explanation of brushless toothless motors

Upstairs explained that the brushed toothed motor is very right, the brushless motor is not very specific, the brushless motor uses the Hall switch as the operation sensor of the motor, the signal output of the sensor is given to the CPU controller of the motor, the CPU compares the speed signal according to the speed data you input and the Hall sensor, if the motor is affected by voltage fluctuations and electronic circuits, the speed and setting are different, the output corrected voltage to control the high-power electronic switch, so the brushless motor circuit is complex, but his speed accuracy is high, Brushless has a long life and low operating noise! But the cost is higher.

At present, many manufacturers choose a brush toothed motor, it is a high-speed motor, the so-called "toothed" is through the gear reducer mechanism, the speed of the electricity to be lowered (because the national standard stipulates that the speed of electric vehicles shall not exceed 20 kilometers per hour, so the motor speed should be about 170 rpm). Since the high-speed motor is decelerated by the gears, it is characterized by the fact that the rider feels strong when starting and has a strong climbing ability. However, the electric hub is closed, only the lubricant (oil) is added before leaving the factory, it is difficult for the user to carry out daily maintenance, and the gear itself also has mechanical wear, due to insufficient lubrication for about a year, the gear wear is aggravated, the noise increases, and the current also increases when used, which affects the motor and battery life.

Another kind of brushed toothless motor, it is a low-speed motor, no gear reducer mechanism, its power performance and climbing ability are relatively weak, but the operation safety (small impact force), less brush wear (its low-speed characteristics determine that the brush wear is only about 1 16 of the brushed toothed motor), less noise (due to the gearless reducer) is its significant advantage.

Since there are no brushes, the biggest advantage of brushless motors is that they fundamentally eliminate brush wear, do not need to replace brushes when due, and have very little noise. However, at present, the manufacturing cost of brushless motors is high, and some manufacturers are unwilling to use them.

It is better for electric vehicles to have toothed motors. High efficiency. A brush motor is a rotating machine that contains a brush device that converts electrical energy into mechanical energy (electric motor) or mechanical energy into electrical energy (generator).

The brush motor is the foundation of all motors, which has the characteristics of fast starting, timely braking, smooth speed regulation in a wide range, and relatively simple control circuit.

Working principle: When the motor is working, the coil and commutator rotate, the magnet and the carbon brush do not rotate, and the alternating change of the current direction of the coil is completed with the commutator and brush rotating by the motor. In the electric vehicle industry, brushed motors are divided into high-speed brushed motors and low-speed brushed motors. There are many differences between brushed motors and brushless motors, and it can be seen from the name that brushed motors have carbon brushes, and brushless motors do not have carbon brushes.

Advantages: In terms of motor efficiency and climbing performance, brushless toothless is better than brushless toothless, and the volume is smaller.

Disadvantages: brushless toothless and brushless toothless ratio is more expensive, riding noise is large, lubrication gears need to be maintained, and brushless toothless motors are maintenance-free.

Maintenance is as simple as turning on the motor and adding grease to the gears. The performance of brushless toothed motor is much better than that of brushless toothless motor, which obtains greater torque with minimum power in power, improves climbability, and reduces the burden on the battery. Brand electric vehicles mostly choose brushless toothed motors.

You'll now choose a brushless toothed motor!

The gears of brushless geared motors are "mostly made of nylon materials", and there are also metal gears, but they have to be disassembled, installed, and replaced from a new purchase, and nylon gears are not durable! The life span is not as long as that of metal gears!

The efficiency is definitely high for brushless and toothless motors, but the torque of brushless toothed motors is large, which is more powerful. If you use an AC motor, the circuit is complicated, and you need to invert and controller, and this is a lot more. I'm not professional either, just talk about it, don't take it to heart if you say it!

Brush toothless motor and brushless toothed motor.

The brushless motor consists of a motor body and a driver, which is a typical mechatronics product.

In the brushless motor, the commutation work is completed by the control circuit in the controller (generally Hall sensor + controller, and the more advanced technology is the magnetic encoder).

The brushless motor adopts electronic commutation, the coil does not move, and the magnetic pole rotates. The brushless motor uses a set of electronic equipment to sense the position of the poles of the permanent magnet through the Hall element, and according to this perception, the electronic circuit is used to switch the direction of the current in the coil in time to ensure that the magnetic force in the correct direction is generated to drive the motor. The disadvantages of brushed motors are eliminated.

These circuits are motor controllers. The controller of the brushless motor can also realize some functions that the brushed motor cannot achieve, such as adjusting the power switching angle, braking the motor, reversing the motor, locking the motor, and using the brake signal to stop supplying power to the motor. Now the electronic alarm lock of the battery car makes full use of these functions.

The brushless DC motor is composed of a motor body and a driver, which is a typical mechatronics product. Since the brushless DC motor is operated in an automatic controlled mode, it will not add a starting winding to the rotor like the synchronous motor that starts under heavy load under frequency conversion speed regulation, and will not produce oscillation and out-of-step when the load is abrupt.

In the process of brushless motor speed regulation, the voltage of the power supply of the motor is unchanged, the control signal of the ESC is changed, and the switching rate of the high-power MOS tube is changed by the microprocessor to realize the change of speed. This process is called frequency conversion speed regulation.

1. The brushless motor uses semiconductor switching devices to achieve electronic commutation, that is, electronic switching devices are used to replace the traditional contact commutators and brushes.

It has the advantages of high reliability, no reversing sparks, low mechanical noise, etc., and is widely used in recording bases, video recorders, electronic instruments and automated office equipment.

2. The brushless motor is composed of a permanent magnet rotor, a multi-pole winding stator, a position sensor, etc. According to the change of the position of the rotor, the position sensing commutates the current of the stator winding along a certain order, that is, detects the position of the rotor magnetic pole relative to the stator winding, and generates a position sensing signal at the determined position, and controls the power talk endurance switching circuit after being processed by the signal conversion circuit, and switches the winding current according to a certain logical relationship containing fiber. The operating voltage of the stator windings is provided by an electronic switching circuit controlled by the position sensor output.

3. The brushless motor using the light vertical comic position sensor is equipped with a photoelectric sensor device at a certain position on the stator assembly, and the rotor is equipped with a light shield, and the light source is a small light-emitting bulb. When the rotor rotates, the light-sensitive components on the stator will intermittently generate pulse signals at a certain frequency due to the action of the light shield.

Shike has the answer for you!

First of all, we must define the definition of ordinary motors, asynchronous motors (induction motors) are generally used in the industrial field, and motors in normal life are generally brushed or brushless motors, so once again the ordinary motor is equivalent to a brushed motor to answer.

Brush motor: (1) large friction and large loss; (2) Large fever and short life; (3) Low efficiency and low output power.

Advantages of brushless motor: (1) no brush, low interference; (2) Low noise and smooth operation; (3) Long life and low maintenance cost.

Other differences: (1) Scope of application, brushless motors are usually used in equipment with relatively high control requirements and high speeds, such as model airplanes, precision instruments and meters, etc., which strictly control the speed of the motor, and the carbon brush motor on the equipment with a high speed is usually used in the power equipment, such as hair dryers, factory motors, household range hoods, etc., in addition, the speed of the series motor can also reach a very high level, but due to the wear and tear of the carbon brush, the service life is not as good as that of the brushless motor. (2) The use effect, the brushless motor is usually digital frequency conversion control, strong controllability, from a few revolutions per minute, to tens of thousands of revolutions per minute can be easily realized, the carbon brush motor generally starts after the working speed is constant, the speed regulation is not very easy, the series motor can also reach 20,000 rpm, but the service life will be relatively short.

Brushless motor literally understands that there is no carbon brush Ordinary motors have carbon brushes, and all the two types of motors have different commutation methods, ordinary motors are commutated by carbon brushes, and brushless motors are commutated by Hall electronics. At the same time, brushless motors without carbon brushes are more environmentally friendly and safer, and carbon brush wear will produce sparks and dust.

The rotor of a brushless motor is a magnet, the stator is a coil, the brush motor is a stator or a permanent magnet, and the rotor is a coil.

The brushless motor needs a driver to work, and the ordinary motor can work directly by connecting it to direct current. Detailed information You can take a look at this ** There are differences in the size of both motors.

Brushless is a synchronous motor with phase control, which has different differences with different ordinary motors.

A gear motor is a type of motor with a gearbox, which can provide more torque and lower speed, which is suitable for applications that require high torque, such as automobiles, robots, and industrial machines. A brushless motor is a motor without a gearbox that can provide higher rotational speed and lower torque, and is suitable for applications that require higher rotational speeds, such as fans, agitators, and power tools. The steps to solve the problem of gear motors and brushless motors are as follows:

1.First of all, check whether the power supply of the motor is normal, make sure that the power supply voltage is stable, the current is sufficient, and the contact is good. 2.

Secondly, check the control circuit of the motor to ensure that the voltage, current, frequency and other parameters of the control circuit are normal. 3.Then, check the bearing of the motor to make sure that the bearing is not damaged by Nenye, that it is well lubricated, and that the temperature is normal.

4.Finally, check the gearbox of the motor to make sure that the gearbox is not damaged, well-lubricated, and the temperature is normal. Personal Tips:

When inspecting a motor, the power supply, control circuitry, bearings, and gearbox should be carefully inspected to ensure that the motor is working properly.

Hello dear, I have helped you find the results of the bright cherry blossoms; There are several reasons why toothed brushless motors and toothless brushless motors are idling without power: Damaged or worn gears: Toothed brushless motors are usually used with gears and transmit power through gears.

If the gears are damaged or worn, it can cause the motor to lose enough torque to start and run properly. Loose or damaged interfaces: Toothless brushless motors typically use connectors or plugs to connect to a power supply or controller.

If the connector or plug is loose or damaged, it may cause the motor to not connect properly to the power supply or controller, resulting in no driving force at no load. Power supply issues: Toothed brushless motors and toothless brushless motors usually require a stable and sufficient power supply to justify normal operation.

If the power supply voltage fluctuates, the power supply is overloaded, and the wiring is incorrect, it may cause the motor to fail to drive properly. Control Issues: Toothed brushless motors and toothless brushless motors need to receive the correct control signal to function properly.

If the control signal fails or is wrong, it may cause the motor to not start and rotate properly. Tips: If you find the problem of toothed brushless motor or toothless brushless motor with no driving force at no load, you can diagnose and solve it through the following troubleshooting methods:

Inspect the gears or interfaces to make sure they are not damaged or loose. Check the power and control signal cables to make sure they are properly connected and not damaged. Using test instruments, measure the mains voltage and control signals, and make sure they are within the normal range.

Check that the controller, drive, or other control element is working properly.

Hello, I have helped you find the result; There may be the following reasons for the power supply problem: the brushless motor needs a stable DC power supply, when the power supply voltage is unstable or the power supply current is insufficient, it will affect the normal operation of the motor, and even lead to idling. Controller issues:

The controller that is used with the brushless motor is responsible for driving the motor, and if the controller fails or has other problems, the motor may not function properly. Faulty internal motor keys: There are many components inside the brushless motor, such as the rotor, stator and magnet, when these parts fail or are damaged, the motor will fail and cannot operate.

Mechanical problems: If there are problems such as wear and loosening in the motor drive system, the motor will not be able to transmit power or the output power will be reduced. In view of the situation of idling and no power, it is generally necessary to troubleshoot the above problems, and repair or replace the corresponding parts after finding the specific cause.

It should be noted that for damaged parts inside the motor, it is best to hand them over to a professional for repair or replacement.