Rotor of high-efficiency and ultrahigh-efficiency three-phase asynchronous motor

Abstract

The invention relates to a rotor of a high-efficiency and ultrahigh-efficiency three-phase asynchronous motor, which comprises a rotor iron core, two cast-aluminum end rings and a plurality of fan blades, wherein the two cast-aluminum end rings are positioned at the end part of the rotor iron core, and the fan blades are positioned on the outer end surfaces of the two cast-aluminum end rings; and the rotor has the characteristics that the fan blades are uniformly distributed on the outer end surfaces at both ends of the two cast-aluminum end rings, and each fan blade is respectively in the shape of a spiral arc. After the technical scheme is adopted, the wind power and the wind quantity generated by the fan blades when the rotor rotates are improved compared with those of traditional motor fan blades, and the flow direction of cooling wind becomes more reasonable; and under the condition of no increase of the volume and the cost, the quantity of the wind flowing in the axial direction and the radial direction of the rotor is increased, and the cooling effect of the three-phase asynchronous motor is effectively improved, so that the temperature rise of the high-efficiency and ultrahigh-efficiency three-phase asynchronous motor can be decreased by more than 3 percent, the electric performance of the high-efficiency and ultrahigh-efficiency three-phase asynchronous motor is improved, and the service life of the motor is prolonged.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a rotor of a high-efficiency and ultra-high-efficiency three-phase asynchronous motor. Background technique [0002] The use of electric motors is quite common in people's daily life. At the same time, people are constantly improving and improving the performance of electric motors and the manufacturing process of electric motors according to different use occasions. [0003] In the original traditional three-phase asynchronous motor rotor manufacturing process, radial fan blades are arranged on both ends of the rotor cast aluminum end ring. The radial fan blades are generally linear, and the motor rotor rotates to generate Radial wind to achieve the effect of cooling the motor. [0004] Due to the small air volume generated by the radial fan blades, the cooling air flow direction is not very reasonable, the cooling effect on the motor is low, the output power of the motor is aff...

AI Technical Summary

Problems solved by technology

[0004] Due to the small air volume generated by the radial fan blades, the cooling air flow direction is not very reasonable, the cooling effect on the motor is low, the output power of the motor is affected, and the insulation material in the motor is unfavorable, thereby shortening the service life of the motor

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