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1. The basic concept of brushless DC motor
The brushless DC motor is a new type of mechatronic motor that has emerged with the development of semiconductor electronic technology. It is a combination of modern electronic technology (including electronic power and microelectronic technology), control theory and motor technology.
Unlike ordinary brushed DC motors that use armature windings to rotate for commutation, brushless motors are motors that use electronic commutation and magnet rotation. Ordinary DC motors use carbon brushes for commutation. Carbon brush commutation has great disadvantages, including 1. The sparks generated by mechanical commutation cause friction between the commutator and the brush, electromagnetic interference, high noise, and short life. . 2. Complex structure, poor reliability, many failures, and frequent maintenance. 3. The existence of the commutator limits the further decrease of the rotor inertia and affects the dynamic performance.
The naming of the brushless DC motor shows the characteristics of the motor: the performance of the motor is similar to that of the DC motor, and the motor has no carbon brushes. The brushless motor achieves the purpose of continuous motor operation through electronic commutation.
The commutation mode of the brushless motor is divided into square wave and sine wave drive. As far as its position sensor and control circuit are concerned, the square wave drive is relatively simple, inexpensive and widely used. At present, most brushless motors are driven by square waves, and all model motors on the market are driven by square waves.
2. Technical advantages and disadvantages of brushless motors
Technical advantages of brushless motors:
1. Good controllability and wide speed range.
2. High reliability, long working life, no need for frequent maintenance.
3. High power factor, high working efficiency and high power density.
Similarly, brushless DC motors also have certain technical disadvantages
1. An electronic controller is required to work, which increases technical complexity and cost, and reduces reliability.
2. The rotor permanent magnet material restricts the use environment of the motor and is not suitable for high temperature environments.
3. There is obvious torque fluctuation, which limits the application of the motor in high-performance servo systems and low-speed ripple systems.
3. Basic parameters of brushless motor
Naming: The naming principles of external rotor motors vary from manufacturer to manufacturer. Some are named after the diameter and height of the motor's stator, and others are named after the diameter and height of the motor. Our motors are named after the diameter and height of the motor's stator. For example, a 2212 motor refers to the stator of the motor with a diameter of 22MM and a height of 12MM.
Stator diameter: the diameter of the silicon steel sheet stator
Stator height (thickness): the height of the silicon steel sheet stator
Number of core poles (number of slots): the number of slots of the stator silicon steel sheet
Number of magnet poles (number of poles): the number of magnets on the rotor
Number of turns (T): The number of turns of the enameled wire wound on the stator slot of the motor. Note that the regular number of turns refers to the sum of the number of coils wound in two adjacent slots, that is, one slot is wound with 8 turns, and the other is also 8 turns. It is 16T.
KV value: the operating speed of the motor, the greater the motor speed, the greater the motor speed. Motor speed = KV value * working voltage.
No-load current: the working current of the motor without any load under the specified voltage
Phase resistance: After the motor is connected, the resistance value between the two contacts
Maximum continuous current: the maximum safe current for the motor to run
Maximum continuous power: the maximum safe power of the motor running Power = voltage * current
Motor weight: the weight of the motor
Shaft diameter: the diameter of the shaft
Basic introduction of brushless DC hub motor
1. The basic concept of brushless DC motor
The brushless DC motor is a new type of mechatronic motor that has emerged with the development of semiconductor electronic technology. It is a combination of modern electronic technology (including electronic power and microelectronic technology), control theory and motor technology.
Unlike ordinary brushed DC motors that use armature windings to rotate for commutation, brushless motors are motors that use electronic commutation and magnet rotation. Ordinary DC motors use carbon brushes for commutation. Carbon brush commutation has great disadvantages, including 1. The sparks generated by mechanical commutation cause friction between the commutator and the brush, electromagnetic interference, high noise, and short life. . 2. Complex structure, poor reliability, many failures, and frequent maintenance. 3. The existence of the commutator limits the further decrease of the rotor inertia and affects the dynamic performance.
The naming of the brushless DC motor shows the characteristics of the motor: the performance of the motor is similar to that of the DC motor, and the motor has no carbon brushes. The brushless motor achieves the purpose of continuous motor operation through electronic commutation.
The commutation mode of the brushless motor is divided into square wave and sine wave drive. As far as its position sensor and control circuit are concerned, the square wave drive is relatively simple, inexpensive and widely used. At present, most brushless motors are driven by square waves, and all model motors on the market are driven by square waves.
2. Technical advantages and disadvantages of brushless motors
Technical advantages of brushless motors:
1. Good controllability and wide speed range.
2. High reliability, long working life, no need for frequent maintenance.
3. High power factor, high working efficiency and high power density.
Similarly, brushless DC motors also have certain technical disadvantages
1. An electronic controller is required to work, which increases technical complexity and cost, and reduces reliability.
2. The rotor permanent magnet material restricts the use environment of the motor and is not suitable for high temperature environments.
3. There is obvious torque fluctuation, which limits the application of the motor in high-performance servo systems and low-speed ripple systems.
3. Basic parameters of brushless motor
Naming: The naming principles of external rotor motors vary from manufacturer to manufacturer. Some are named after the diameter and height of the motor's stator, and others are named after the diameter and height of the motor. Our motors are named after the diameter and height of the motor's stator. For example, a 2212 motor refers to the stator of the motor with a diameter of 22MM and a height of 12MM.
Stator diameter: the diameter of the silicon steel sheet stator
Stator height (thickness): the height of the silicon steel sheet stator
Number of core poles (number of slots): the number of slots of the stator silicon steel sheet
Number of magnet poles (number of poles): the number of magnets on the rotor
Number of turns (T): The number of turns of the enameled wire wound on the stator slot of the motor. Note that the regular number of turns refers to the sum of the number of coils wound in two adjacent slots, that is, one slot is wound with 8 turns, and the other is also 8 turns. It is 16T.
KV value: the operating speed of the motor, the greater the motor speed, the greater the motor speed. Motor speed = KV value * working voltage.
No-load current: the working current of the motor without any load under the specified voltage
Phase resistance: After the motor is connected, the resistance value between the two contacts
Maximum continuous current: the maximum safe current for the motor to run
Maximum continuous power: the maximum safe power of the motor running Power = voltage * current
Motor weight: the weight of the motor
Shaft diameter: the diameter of the shaft
Related Products : 14 inch three leaf aluminum alloy
The brushless DC motor is a new type of mechatronic motor that has emerged with the development of semiconductor electronic technology. It is a combination of modern electronic technology (including electronic power and microelectronic technology), control theory and motor technology.
Unlike ordinary brushed DC motors that use armature windings to rotate for commutation, brushless motors are motors that use electronic commutation and magnet rotation. Ordinary DC motors use carbon brushes for commutation. Carbon brush commutation has great disadvantages, including 1. The sparks generated by mechanical commutation cause friction between the commutator and the brush, electromagnetic interference, high noise, and short life. . 2. Complex structure, poor reliability, many failures, and frequent maintenance. 3. The existence of the commutator limits the further decrease of the rotor inertia and affects the dynamic performance.
The naming of the brushless DC motor shows the characteristics of the motor: the performance of the motor is similar to that of the DC motor, and the motor has no carbon brushes. The brushless motor achieves the purpose of continuous motor operation through electronic commutation.
The commutation mode of the brushless motor is divided into square wave and sine wave drive. As far as its position sensor and control circuit are concerned, the square wave drive is relatively simple, inexpensive and widely used. At present, most brushless motors are driven by square waves, and all model motors on the market are driven by square waves.
2. Technical advantages and disadvantages of brushless motors
Technical advantages of brushless motors:
1. Good controllability and wide speed range.
2. High reliability, long working life, no need for frequent maintenance.
3. High power factor, high working efficiency and high power density.
Similarly, brushless DC motors also have certain technical disadvantages
1. An electronic controller is required to work, which increases technical complexity and cost, and reduces reliability.
2. The rotor permanent magnet material restricts the use environment of the motor and is not suitable for high temperature environments.
3. There is obvious torque fluctuation, which limits the application of the motor in high-performance servo systems and low-speed ripple systems.
3. Basic parameters of brushless motor
Naming: The naming principles of external rotor motors vary from manufacturer to manufacturer. Some are named after the diameter and height of the motor's stator, and others are named after the diameter and height of the motor. Our motors are named after the diameter and height of the motor's stator. For example, a 2212 motor refers to the stator of the motor with a diameter of 22MM and a height of 12MM.
Stator diameter: the diameter of the silicon steel sheet stator
Stator height (thickness): the height of the silicon steel sheet stator
Number of core poles (number of slots): the number of slots of the stator silicon steel sheet
Number of magnet poles (number of poles): the number of magnets on the rotor
Number of turns (T): The number of turns of the enameled wire wound on the stator slot of the motor. Note that the regular number of turns refers to the sum of the number of coils wound in two adjacent slots, that is, one slot is wound with 8 turns, and the other is also 8 turns. It is 16T.
KV value: the operating speed of the motor, the greater the motor speed, the greater the motor speed. Motor speed = KV value * working voltage.
No-load current: the working current of the motor without any load under the specified voltage
Phase resistance: After the motor is connected, the resistance value between the two contacts
Maximum continuous current: the maximum safe current for the motor to run
Maximum continuous power: the maximum safe power of the motor running Power = voltage * current
Motor weight: the weight of the motor
Shaft diameter: the diameter of the shaft
Basic introduction of brushless DC hub motor
1. The basic concept of brushless DC motor
The brushless DC motor is a new type of mechatronic motor that has emerged with the development of semiconductor electronic technology. It is a combination of modern electronic technology (including electronic power and microelectronic technology), control theory and motor technology.
Unlike ordinary brushed DC motors that use armature windings to rotate for commutation, brushless motors are motors that use electronic commutation and magnet rotation. Ordinary DC motors use carbon brushes for commutation. Carbon brush commutation has great disadvantages, including 1. The sparks generated by mechanical commutation cause friction between the commutator and the brush, electromagnetic interference, high noise, and short life. . 2. Complex structure, poor reliability, many failures, and frequent maintenance. 3. The existence of the commutator limits the further decrease of the rotor inertia and affects the dynamic performance.
The naming of the brushless DC motor shows the characteristics of the motor: the performance of the motor is similar to that of the DC motor, and the motor has no carbon brushes. The brushless motor achieves the purpose of continuous motor operation through electronic commutation.
The commutation mode of the brushless motor is divided into square wave and sine wave drive. As far as its position sensor and control circuit are concerned, the square wave drive is relatively simple, inexpensive and widely used. At present, most brushless motors are driven by square waves, and all model motors on the market are driven by square waves.
2. Technical advantages and disadvantages of brushless motors
Technical advantages of brushless motors:
1. Good controllability and wide speed range.
2. High reliability, long working life, no need for frequent maintenance.
3. High power factor, high working efficiency and high power density.
Similarly, brushless DC motors also have certain technical disadvantages
1. An electronic controller is required to work, which increases technical complexity and cost, and reduces reliability.
2. The rotor permanent magnet material restricts the use environment of the motor and is not suitable for high temperature environments.
3. There is obvious torque fluctuation, which limits the application of the motor in high-performance servo systems and low-speed ripple systems.
3. Basic parameters of brushless motor
Naming: The naming principles of external rotor motors vary from manufacturer to manufacturer. Some are named after the diameter and height of the motor's stator, and others are named after the diameter and height of the motor. Our motors are named after the diameter and height of the motor's stator. For example, a 2212 motor refers to the stator of the motor with a diameter of 22MM and a height of 12MM.
Stator diameter: the diameter of the silicon steel sheet stator
Stator height (thickness): the height of the silicon steel sheet stator
Number of core poles (number of slots): the number of slots of the stator silicon steel sheet
Number of magnet poles (number of poles): the number of magnets on the rotor
Number of turns (T): The number of turns of the enameled wire wound on the stator slot of the motor. Note that the regular number of turns refers to the sum of the number of coils wound in two adjacent slots, that is, one slot is wound with 8 turns, and the other is also 8 turns. It is 16T.
KV value: the operating speed of the motor, the greater the motor speed, the greater the motor speed. Motor speed = KV value * working voltage.
No-load current: the working current of the motor without any load under the specified voltage
Phase resistance: After the motor is connected, the resistance value between the two contacts
Maximum continuous current: the maximum safe current for the motor to run
Maximum continuous power: the maximum safe power of the motor running Power = voltage * current
Motor weight: the weight of the motor
Shaft diameter: the diameter of the shaft
Related Products : 14 inch three leaf aluminum alloy
