High-power energy-saving motor

Abstract

The invention relates to a high-power energy-saving motor comprising a motor and a control circuit thereof. The motor comprises a base, a machine shell and a top cover which are connected in sequence, and also comprises a stator and a rotor which are mounted in the machine shell, wherein a rotating shaft is arranged at the center of the rotor, the rotor comprises an iron core, a plurality of permanent magnet mounting holes uniformly surrounding outside the rotating shaft are arranged in the iron core, and each permanent magnet mounting hole is internally provided with a permanent magnet. The upper end and the lower end of each permanent magnet are respectively provided with an aluminum lantern ring on which tooth sheets are arranged. The base is provided with a horn-shaped exhaust opening protruding towards the iron core, and the back of the top cover is connected with a horn-shaped air suction nozzle through an encirclement body on which a ventilation opening is arranged. By using the high-power energy-saving motor, the cross ventilation inside the motor is enhanced, the air cooling effect is improved, the permanent magnets cannot go bad after long-term operation, the reliability for the operation of the motor is ensured, and the service life of the motor is prolonged. A heavy transformer for the control circuit is omitted, therefore, heat sources are reduced, the power source efficiency is increased, and the aims of electricity saving and energy saving are achieved.

Description

technical field [0001] The invention relates to a motor, in particular to a high-power energy-saving motor with good heat dissipation, low noise, high reliability, long service life, and energy saving. Background technique [0002] At present, the motor is the main driving force in industrial production. Its energy-saving index, speed regulation performance, output-input power ratio, noise, and operating life have always been the performance indicators that everyone pays attention to. The motor generally includes a stator and a rotor composed of an iron core. Usually, only one fan is installed at one end of the rotating shaft to dissipate heat from the stator and the rotor. If the insulation layer is damaged, if the temperature exceeds the working limit of the permanent magnet, it will also cause irreversible demagnetization of the permanent magnet, which will increase the motor speed, reduce efficiency, reduce power, and torque, and will generate more heat, which will even...

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Problems solved by technology

[0005] The invention also solves the technical problems that the original motor control circuit usually uses a transformer, and the transformer will generate a lot of heat energy during operation, which will affect the reliability of other circuits, the power supply efficiency is not high, and the energy-saving effect is not good; it provides a high-power Energy-saving motor, its control circuit saves the bulky transformer, thereby reducing the heat source, improving reliability and power efficiency, and achieving the purpose of saving electricity and energy

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