Introduction of high-speed spiral door motor

The development of motors has been nearly 200 years, and the research in all aspects has been very mature, but there are still many research institutions devoted to the research of motor bodies, and the high-speed motor is one of the key research directions. Our most common motor is usually hundreds of thousands of watts and hundreds of thousands of revolutions. Now, the traditional motor speed is increasing and the power is increasing. High-speed door motor is a research direction based on the traditional motor, which continuously raises the speed and power.

Here is the content list:

• Definition of high-speed motor

• Heat dissipation mode of the high-speed spiral door motor

Definition of high-speed motor

1. Speed: In some literature, a motor with a speed of more than 10000 rpm is called a high-speed motor. In fact, this definition is extremely inappropriate. Small power motors with tens of thousands of revolutions or even hundreds of thousands of revolutions have no technical difficulties in terms of electromagnetism or mechanics. The torque of the high-speed and the low-power motor is particularly small, so the current is not large, and the copper consumption is naturally not high.

2. Difficulty value: the so-called difficulty value is the product of the speed and the square root of the power. A motor with a difficulty value more of than 10 to the fifth power is considered a high-speed motor. According to this concept, a motor with 10000 revolutions can only be considered a high-speed motor if its power reaches 100KW.

3. Linear speed: It is also relatively accurate to define a high-speed motor based on the linear speed of the motor rotor surface. The linear speed is proportional to the product of the speed and the rotor radius, and the rotor radius is also positively related to the motor power. Therefore, the linear speed is actually similar to the meaning expressed by the difficulty value.

4. Bearing DN value: It is also more reasonable to define a high-speed motor by the product of bearing diameter and rotating speed. Like the previous two, a high-power motor has a large load, so it is necessary to select a bearing with larger stiffness, the corresponding bearing diameter is large, and the bearing speed is the motor speed.

Heat dissipation mode of high-speed spiral door motor

The cooling methods of the motor mainly include water cooling and air cooling. When selecting the cooling method, air cooling is preferred. When air cooling cannot meet the demand, water cooling is considered. After all, the air-cooling scheme has a simple structure and low cost.

Air cooling is divided into internal air cooling and external air cooling. The best scheme for internal air cooling is to install a cooling impeller on the rotor shaft, and the impeller blows to the internal stator and rotor of the motor to take away heat through the flowing wind.

External air cooling is hanging a small fan at the end of the motor. The fan blows air to the motor casing, mainly taking away the internal heat through the casing. This way can only heat the stator of the motor, but the heat of the rotor cannot be taken away.

If you want to know more information about the high-speed door motor, welcome to consult us. Our website is :www.everbrightdoor.com. Looking forward to our cooperation.