DC motors are widely used in automatic doors for their high efficiency, low maintenance, and easy speed control. However, there are two types of DC motors: brushless and brushed. They have different characteristics and advantages that suit different applications.
Brushless DC motors use permanent magnets as rotors and electronic circuits as commutators. They have no brushes or commutators that wear out from friction. Therefore, they have longer life span, lower noise level, higher speed range, better torque control, and higher power density than brushed DC motor. They also have lower electromagnetic interference and can operate safely in harsh environments.
Brushed DC motors use metal or carbon brushes and mechanical commutators to switch the current direction. They have simpler structure, lower cost, easier installation, and wider availability than brushless DC motors. They also have better low-speed torque performance and can start instantly without a controller.
The advantages of brushless DC motors make them suitable for automatic doors that require high speed, high precision, low noise, long life span, and energy efficiency. For example, they can be used in sliding doors that need to open and close quickly and smoothly. The advantages of brushed DC motors make them suitable for automatic doors that require low cost, easy installation, simple control, and high starting torque. For example, they can be used in swing doors that need to overcome inertia and friction.
Post time: Mar-22-2023