High-efficiency energy-saving motor

Abstract

The invention provides a high-efficiency energy-saving motor. The high-efficiency energy-saving motor comprises a case, a stator, a rotor, a base, a hanging ring, a radiating rib and a waterproof wire outlet device electrically connected with a coil, wherein the rotor comprises a rotor mandrel and a hollow rotor body; the hollow rotor body is fixed to the rotor mandrel; the rotor mandrel is provided with a concentric shaft hole; the wall of the shaft hole is provided with a spiral groove; holes and slots are uniformly formed in the rotor body; a geometric permanent magnet material is embedded on the periphery of the rotor body; the outer surface of the permanent magnet material is not lower than the surface of the rotor body; a magnetic conduction yoke made of a magnetic conduction material is attached and fixed to the outer surface of the permanent magnet material; the magnetic conduction yoke can cover the permanent magnet material; the magnetic conduction yoke is made of one of a silicon steel sheet, industrial soft iron and nodular cast iron; and the width of an air gap between the rotor and the stator is 4 to 8 mm. By using the motor, the loss is reduced and the efficiency is improved; the power can be improved by 1.5 to 2 levels; power factors are all above 90 percent; moreover, materials can be saved when the motor is manufactured.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a high-efficiency and energy-saving motor. Background technique [0002] Due to the global energy crisis, many advanced countries in the world are looking for their own energy-saving and high-efficiency outlets. The rare earth permanent magnet materials that appeared in the 1980s gave people a new development idea. The emergence of rare earth magnets is far more than Ferrite permanent magnets are several times or more than ten times higher than the temperature. People began to use it to develop motors and generators, especially various special motors. The motors manufactured by it fully reflect high efficiency and energy saving. And at the beginning of this century, all countries are focusing on the development of rare earth permanent magnet technology, and more than 5,000 kinds of rare earth motors have been developed for the U.S. military. The unparalleled performance of the ra...

AI Technical Summary

Problems solved by technology

However, one of the two major propositions of the world's electric motors, the subject of "big horse-drawn and small carts" has not been reported. It means that 5.5KW water pumps need to buy 7.5KW motors, 7.5KW water pumps need to buy 11KW motors, and 22KW water pumps require To buy a 30KW motor, the phenomenon of large horse-drawn carts is very common and wastes a lot

The main reason for the "big horse-drawn trolley" is that the magnetic field of the motor is high on both sides and the middle magnetic field is weak, the magnetic effect of the motor is not good, the magnetic field line closes prematurely or lags behind, and the magnetic energy cannot be used reasonably

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