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What is the difference between coreless cup motor and brushless DC motor?

1. Structure

(1).Coreless motor: belongs to DC permanent magnet servo, control motor, can also be classified as micro motor. The coreless motor breaks through the rotor structure of the traditional motor in the structure, using no iron core rotor, also called coreless rotor. This novel rotor structure completely eliminates the power loss caused by eddy currents in the core.

(2).Brushless DC motor: brushless DC motor is composed of motor body and driver, is a typical mechanical and electrical integration products.

2. Principle

(1).Coreless motor: coreless motor in the structure of the traditional motor rotor structure, the use of no iron core rotor, also called coreless rotor. This rotor structure completely eliminates the electric energy loss caused by the formation of eddy current in the core, and its weight and moment of inertia are greatly reduced, thus reducing the mechanical energy loss of the rotor itself.

(2).Brushless DC motor: brushless DC motor is composed of motor body and driver, is a typical mechanical and electrical integration products. The stator windings of the motor are made of three – phase symmetrical star connection, which is very similar to the three – phase asynchronous motor. A magnetized permanent magnet is attached to the rotor of the motor. In order to detect the polarity of the rotor of the motor, a position sensor is installed in the motor.

3. Functional application

(1).Coreless motor: the application of coreless motor, from the military, high-tech fields into large industrial and civil fields, more than a decade has been rapid development, especially in the industrial developed countries, has involved most industries and many products.

(2).brushless DC motor: brushless DC motor is widely used, such as automobiles, tools, industrial control, automation and aerospace and so on.


Post time: Mar-08-2023