4 thoughts on “What is a brushless motor, what is the difference between brushlessness and brush?”
Marlene
There is a difference between a brush motor and a brushless motor: 1. There is a brush motor . It uses a carbon brush as two contacts for the motor power supply. Small and surpass clutches to reach anomalotic speed adjustment of 0-20 km/h. At present, this kind of high -speed motor has high gold content, high strength of motor deceleration gears, good wear resistance, and reasonable design, so the repairs rate is low; and the cost of repairs to replace gears and motors is less, which effectively reduces electric bicycles to effectively reduce electric bicycles Maintenance costs; and brush motors can be easily ride through the clutch and flywheel. There is a brush motor to use the brush mechanical direction! 2, brushless motor This speed control system's cost ratio is high, the speed control system of high -speed motor is high, and the controller is prone to failure during use. Electric bicycles equipped with a brushless motor must be driving for more than 35 km/h before they can use their best work efficiency, but we know that electric bicycles must be managed as non -motorized vehicles. The speed must be less than 20 km/h, so The selection of electric bicycles by electric bicycles has reduced work efficiency, and its desirableness is not strong. The main point it is now using is less noise. The brushless machine is to use the electronic line to change the direction! There are detection elements to detect polarity!
The difference is the difference between brush motors and brushless motors from several aspects: 1. Application range: , Brewing industry, meat processing industry, soybean product processing industry, beverage processing industry, pastry processing industry, pharmaceutical industry, electronic precision plant, etc. ) Dry handiches, more used to the factory. Carbon brush motor: Only all kinds of toilets and other areas that are not too high in the toilets, but cannot be used like dust -free workshops and explosion -proof workshops! 2, service life: Bei-free motor: It can work for about 20,000 hours in a row, and the conventional service life is 7-10 years. Carbon brush motor: It can work continuously for about 5,000 hours, and the conventional service life is 2-3 years. 3, use effect: Bei-free motor: run at high speed at 90-95m/s at high speed, the actual effect can reach 5-7s dry hands. Carbon brush motor: operating speed and drying time are much lower than the brushless motor. 4, energy saving: Relative to, the power consumption of the brushless motor is only 1/3 of the carbon brush. 5. In terms of maintenance in the future After the carbon brush motor is worn, not only the carbon brush is replaced, but also the attachments around the motor such as the tooth, the cost is much higher. The main thing is that the overall function will be affected. 6, noise and service life The noise from carbon brush motors is much higher than that of brushless motors, and with future carbon brushing wear Brushless motors will not be affected.
: A brushless motor refers to a brushless DC motor consisting of a motor. Its main body and drive are a typical electromechanical product. On the brushless DC motor is running in a self -control type, it will not be launched on the rotor to the rotor like the transition speed adjustment. step. The permanent magnet of the brushless DC motor of small and medium-sized capacity is now mostly used with high magnetic energy accumulated rare earth 钕 iron boron (ND-Fe-B) material. Therefore, the volume of the rare earth permanent magnetic brush -free motor is compared to the same capacity three -phase asynchronous motor to reduce a seat number.
What is the difference between brushlessness and brush?
: The difference between a brush motor and a brushless motor is whether there is a commonly used brush-changeabler. The replacement of the DC motor has been realized through the contact with the ring switching of the rotor installed on the rotor by graphite brush.
The brushless motor will feedback the rotor position back to the control circuit through the Hall sensor, so that it can know the accurate time for the phase of the motor to change direction. Most of the motors produced by brushless motor manufacturers have three Hall effect positioning sensors. Because the brushless motor does not have a brush, there is no relevant interface, so it is cleaner and the noise is smaller. In fact, there is no need to maintain it, and the life span is longer.
The only difference is that the magnetic field burning set of the generator to communicate with the generator rotates with the generator rotor; the magnetic field winding of the brushless AC generator is static, that is, not rotating with the rotor. Therefore, the two leads of the magnetic field winding can be directly led from the back end, eliminating the work that often maintains and maintain the carbon brush and slide rings. Because the magnetic field winding is the same as the systemic winding, it is fixed on the back end of the generator, so the claw -shaped magnetic poles installed on the rotor assembly at work are rotated in the gap between the electronomic winding and the class section winding. The advantages of brushless AC generators are: there is no spark at work, the interference with radio equipment is small, and it overcomes poor contact, non -power generation or abrasion caused by brush generators due to the friction and wear between carbon brush and slide ring. Common faults such as power generation. Its shortcomings are: Due to the addition of two additional gaps in the magnetic circuit, the charging performance during low -speed operation is slightly lower than the brushing motor.
There is a difference between a brush motor and a brushless motor:
1. There is a brush motor
. It uses a carbon brush as two contacts for the motor power supply. Small and surpass clutches to reach anomalotic speed adjustment of 0-20 km/h. At present, this kind of high -speed motor has high gold content, high strength of motor deceleration gears, good wear resistance, and reasonable design, so the repairs rate is low; and the cost of repairs to replace gears and motors is less, which effectively reduces electric bicycles to effectively reduce electric bicycles Maintenance costs; and brush motors can be easily ride through the clutch and flywheel. There is a brush motor to use the brush mechanical direction!
2, brushless motor
This speed control system's cost ratio is high, the speed control system of high -speed motor is high, and the controller is prone to failure during use. Electric bicycles equipped with a brushless motor must be driving for more than 35 km/h before they can use their best work efficiency, but we know that electric bicycles must be managed as non -motorized vehicles. The speed must be less than 20 km/h, so The selection of electric bicycles by electric bicycles has reduced work efficiency, and its desirableness is not strong. The main point it is now using is less noise. The brushless machine is to use the electronic line to change the direction! There are detection elements to detect polarity!
The difference is the difference between brush motors and brushless motors from several aspects:
1. Application range:
, Brewing industry, meat processing industry, soybean product processing industry, beverage processing industry, pastry processing industry, pharmaceutical industry, electronic precision plant, etc. ) Dry handiches, more used to the factory.
Carbon brush motor: Only all kinds of toilets and other areas that are not too high in the toilets, but cannot be used like dust -free workshops and explosion -proof workshops!
2, service life:
Bei-free motor: It can work for about 20,000 hours in a row, and the conventional service life is 7-10 years.
Carbon brush motor: It can work continuously for about 5,000 hours, and the conventional service life is 2-3 years.
3, use effect:
Bei-free motor: run at high speed at 90-95m/s at high speed, the actual effect can reach 5-7s dry hands.
Carbon brush motor: operating speed and drying time are much lower than the brushless motor.
4, energy saving:
Relative to, the power consumption of the brushless motor is only 1/3 of the carbon brush.
5. In terms of maintenance in the future
After the carbon brush motor is worn, not only the carbon brush is replaced, but also the attachments around the motor such as the tooth, the cost is much higher. The main thing is that the overall function will be affected.
6, noise and service life
The noise from carbon brush motors is much higher than that of brushless motors, and with future carbon brushing wear Brushless motors will not be affected.
What is a brushless motor?
: A brushless motor refers to a brushless DC motor consisting of a motor. Its main body and drive are a typical electromechanical product.
On the brushless DC motor is running in a self -control type, it will not be launched on the rotor to the rotor like the transition speed adjustment. step. The permanent magnet of the brushless DC motor of small and medium-sized capacity is now mostly used with high magnetic energy accumulated rare earth 钕 iron boron (ND-Fe-B) material. Therefore, the volume of the rare earth permanent magnetic brush -free motor is compared to the same capacity three -phase asynchronous motor to reduce a seat number.
What is the difference between brushlessness and brush?
: The difference between a brush motor and a brushless motor is whether there is a commonly used brush-changeabler. The replacement of the DC motor has been realized through the contact with the ring switching of the rotor installed on the rotor by graphite brush.
The brushless motor will feedback the rotor position back to the control circuit through the Hall sensor, so that it can know the accurate time for the phase of the motor to change direction. Most of the motors produced by brushless motor manufacturers have three Hall effect positioning sensors. Because the brushless motor does not have a brush, there is no relevant interface, so it is cleaner and the noise is smaller. In fact, there is no need to maintain it, and the life span is longer.
The only difference is that the magnetic field burning set of the generator to communicate with the generator rotates with the generator rotor; the magnetic field winding of the brushless AC generator is static, that is, not rotating with the rotor. Therefore, the two leads of the magnetic field winding can be directly led from the back end, eliminating the work that often maintains and maintain the carbon brush and slide rings. Because the magnetic field winding is the same as the systemic winding, it is fixed on the back end of the generator, so the claw -shaped magnetic poles installed on the rotor assembly at work are rotated in the gap between the electronomic winding and the class section winding.
The advantages of brushless AC generators are: there is no spark at work, the interference with radio equipment is small, and it overcomes poor contact, non -power generation or abrasion caused by brush generators due to the friction and wear between carbon brush and slide ring. Common faults such as power generation. Its shortcomings are: Due to the addition of two additional gaps in the magnetic circuit, the charging performance during low -speed operation is slightly lower than the brushing motor.
There are brushes as DC motors or step motors, and brushless is the AC motor. The working principle defines the driving method.