Views: 3 Author: Site Editor Publish Time: 2023-06-01 Origin: Site
The parameters of brushless DC Motor (BLDC motor for short) usually include the following aspects:
1. Rated voltage: The rated voltage of the brushless motor usually refers to the maximum voltage required for the operation of the motor, also known as the rated voltage of the motor. When selecting a brushless motor, it is necessary to select a suitable motor according to the voltage required by the actual application scenario.
2. Rated speed: The rated speed of a brushless motor usually refers to the maximum speed when the motor is running at rated voltage. When selecting a brushless motor, it is necessary to select a suitable motor according to the speed required by the actual application scenario.
3. Rated power: The rated power of a brushless motor usually refers to the maximum output power of the motor at rated voltage and rated speed. When selecting a brushless motor, it is necessary to select a suitable motor according to the power required by the actual application scenario.
4. Rated current: The rated current of a brushless motor usually refers to the maximum current required by the motor at rated voltage and rated speed. When selecting a brushless motor, it is necessary to select a suitable motor according to the current required by the actual application scenario.
5. Torque constant: The torque constant refers to the maximum torque generated by the brushless motor at rated current, usually expressed in Nm/A or oz-in/A. The larger the torque constant, the stronger the torque output capability of the motor.
6. No-load speed: The no-load speed refers to the maximum speed of the brushless motor when it is not loaded. The higher the no-load speed, the better the speed stability and speed regulation performance of the motor under actual load.
7. Internal resistance: Internal resistance refers to the resistance generated by the brushless motor during operation, usually expressed in ohms (Ω). The smaller the internal resistance, the higher the efficiency and output power of the motor.
8. Thermal conductivity: The thermal conductivity of a brushless motor refers to whether the heat generated by the motor can be effectively dissipated or transferred during operation, usually expressed in terms of thermal resistance (°C/W). The better the thermal conductivity, the stronger the heat dissipation capability of the motor, which can improve the power output and life of the motor.
9. Number of magnetic poles: The number of magnetic poles refers to the number of permanent magnets or magnetic poles installed on the brushless motor rotor, usually expressed in numbers. The more the number of magnetic poles, the lower the speed of the motor, but the stronger the torque output capability.
10. Control mode: The control mode of brushless motor usually includes open-loop control and closed-loop control. Open-loop control usually refers to controlling the voltage and current of the motor through a PWM (pulse width modulation) controller, while closed-loop control is based on the open-loop control and adjusts the speed and torque of the motor through a feedback mechanism. Closed-loop control generally improves the accuracy and stability of the motor.
Brushless DC Motor (BLDC motor for short) has many advantages over traditional brushed DC Motor (Brushed DC Motor), some of which are as follows:
1. Efficient performance: Since the rotor of the brushless motor is composed of permanent magnets, compared with the brushed motor, the friction loss between the rotor and the stator of the brushless motor is smaller, the overall efficiency is higher, and higher power can be achieved output and longer life.
2. High power density: The rotor of the brushless motor adopts a permanent magnet structure. Compared with the brush and collector ring structure of the brushed motor, it is smaller in size and lighter in weight, and can achieve higher power density. It is suitable for applications with limited volume. used in occasions.
3. Low noise and low vibration: Since the rotor of the brushless motor does not need to use brushes and slip rings to connect to the power supply, the frictional noise and vibration generated by the brushless motor during operation are smaller, which can reduce the noise and vibration of the machine.
4. High reliability and durability: Traditional brushed motors require regular replacement and maintenance due to the wear of brushes and slip rings, while brushless motors do not require such maintenance. In addition, the rotor of the brushless motor has a simple structure, a longer life, can work in harsh environments, and has higher reliability and durability.
5. Programmability: The brushless motor can precisely adjust the speed and torque of the motor through the controller, and can realize various complex control algorithms, such as vector control, induction motor control, etc., so that the brushless motor can be used in different applications More flexible and programmable.
6. Wide adaptability: Brushless motors have a wide range of application scenarios and can be used in home appliances, automobiles, robots, aerospace, medical equipment and other fields. In the field of home appliances, brushless motors are often used in household appliances such as vacuum cleaners, washing machines, and electric fans. In the automotive field, brushless motors are widely used in electric vehicles, hybrid vehicles, engine start-stop systems, electric power steering systems, etc. In the field of robotics, brushless motors can be used to drive and move robot joints, improving the flexibility and motion performance of robots. In the field of aerospace, brushless motors can be used for attitude control, propulsion systems and electric power transmission systems of aircraft. In the field of medical equipment, brushless motors can be used in medical equipment such as electronic injectors, surgical instruments, and medical robots.
In short, brushless motors have the advantages of high efficiency performance, high power density, low noise and low vibration, high reliability and durability, programmability and wide adaptability, making it have broad application prospects in many application fields.
Compared with brushed motors and stepper motors, the advantages of brushless motors are more prominent. First, brushless motors are more efficient because they do not use traditional brushes and slip rings, which avoid energy loss and frictional wear. Second, brushless motors last longer because there is no friction between their rotor and stator, reducing the risk of wear and failure. Additionally, brushless motors offer greater precision and control because they use an electronic commutator to control rotor position, allowing for more accurate control. Also, brushless motors have a higher speed and torque density because their rotors consist of permanent magnets, which allow for higher power. Finally, brushless motors are quieter because they don't use traditional brushes and slip rings, which avoid noise from friction.
Overall, brushless motors offer significant advantages in terms of efficiency, life, precision, control performance, power output, and noise, making them the motor type of choice for many applications.
According to the above introduction, I believe you also have a certain understanding of brushless motors. The following figure shows the types of our brushless motors. If you have any questions, you can consult us at any time!
Our brushless DC motors have the following types, and there are models with different parameters under each type. If you need to know more, you can click to view the detailed link, or you can consult us directly. We can provide you with a very detailed explanation, and our products can also Accept customization! !
