Novel direct-current brushless motor

Abstract

The invention provides a novel direct-current brushless motor which comprises a stator, a rotor, a front shaft sleeve and a rear shaft sleeve, wherein the rotor is fixedly arranged in a stator inner hole of a winding with a coil through clamping grooves of the front shaft sleeve and the rear shaft sleeve; the rotor comprises a rotor core, a rotating shaft and a magnetic shoe, the rotor core is connected with the rotating shaft, the magnetic shoe is arranged on the outer surface of the rotor core, the rotor core comprises rotor false teeth and a rotor groove, and the stator comprises a stator groove and teeth. According to the novel direct-current brushless motor disclosed by the invention, a traditional method for externally providing a brake device is avoided, the tooth groove width is increased based on an existing direct-current brushless motor, the polar groove proportion is improved, a tooth groove effect is utilized to achieve self brake, and magnetic resistance is reduced; in addition, the stator is prepared by punching a silicon steel sheet, so that an eddy current effect and magnetic hysteresis loss are reduced, the service life is prolonged, later maintenance cost is reduced, and the equipment use efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of solar thermal power generation, in particular to a novel DC brushless motor. Background technique [0002] With the adjustment of the energy structure, traditional energy sources have shown disadvantages such as weak supply, high cost of use, and serious pollution. As we all know, solar energy is not only a clean and pollution-free green energy, but also a renewable energy. Concentrating Solar Power (CSP: Concentrating Solar Power) is an energy conversion method that effectively utilizes solar energy. In recent years, it has set off a new boom in research and development and construction around the world. [0003] The CSP system uses heliostats to reflect sunlight, gather it into the energy receiving device and exchange heat with the medium in it, and then use the energy absorbed by the medium to generate electricity by heating water vapor. This power generation method is clean and pollution-free, and th...

AI Technical Summary

Problems solved by technology

This leads to the frequent start and stop of the motor used to drive the heliostat. The electromagnetic brake used on the traditional motor is difficult to use for a long time due to the wear and tear of the mechanical brake. Since the number of heliostats is as many as 10,000 surface, resulting in huge maintenance costs

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