What are the application prospects of coreless motors?

I often hear that a certain product uses a coreless motor, how much cowhide it is, this is its selling point, what is a coreless cup in the end? Is it a hollow cup? Not! It is just a form of motor, with advantages and disadvantages, a wide range of applications, and good prospects.

The most common is drones.

First, the structure is different.

1. Coreless motor: It belongs to the servo and control motor of DC permanent magnet, and it can also be classified as a micro motor. The coreless motor breaks through the rotor structure of the traditional motor in terms of structure, and adopts an ironless rotor, also known as a coreless rotor.

This novel rotor structure completely eliminates the electrical energy loss caused by the formation of eddy currents in the iron blade core.

2. Brushless DC motor: The brushless DC motor is composed of the main body of the motor and the driver, which is a typical mechatronics product.

Second, the principle is different.

1. Coreless motor: The coreless motor breaks through the rotor structure of the traditional motor in terms of structure, and adopts an ironless rotor, also called a coreless rotor. This rotor structure completely eliminates the electrical energy loss caused by the formation of eddy currents in the core, and at the same time its weight and moment of inertia are greatly reduced, thus reducing the mechanical energy loss of the rotor itself.

2. Brushless DC motor: The brushless DC motor is composed of the main body of the motor and the driver, which is a typical mechatronics product. The stator winding of the motor is mostly 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, and a position sensor is installed in the motor to detect the polarity of the motor's rotor.

Third, the function should be different from the base balance.

1. Coreless motor: The application of coreless motor, after entering the large industrial and civilian fields from the military and high-tech fields, has been rapidly developed for more than ten years, especially in industrially developed countries, and 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, etc.

The rotor coil of a coreless motor is like a water cup, so it is called a coreless motor.

Its advantages are: because there is no iron core, there is no iron loss due to the iron core, and the efficiency is high; Because there is no iron core, it is light in weight, small in moment of inertia, and easy to control.