Ultrahigh energy efficiency 250W two-pole three-phase asynchronous motor

Abstract

Provided is an ultrahigh energy efficiency 250W two-pole three-phase asynchronous motor which comprises a stator and a rotor. Design of external diameters, internal diameters, length of iron cores, number of punching sheet grooves and shape and size of the grooves of the stator and the rotor is systematically optimized so that stator winding loss, rotor winding loss and iron core loss are substantially reduced. Compared with existing similar products, total energy loss amount of the ultrahigh energy efficiency 250W two-pole three-phase asynchronous motor is reduced from 114.7W to 64.8W, and reduction is 49.6% so that energy is substantially saved under the premise of the same output power of 250W. Energy conversion efficiency is increased from 68.5% to 79.4%, and increment is 10.9%. Compared with 250W two-pole three-phase asynchronous motor efficiency standard requirement of 77.0% which is specified in the highest grade of IE3 of international motor energy efficiency grade standard, energy conversion efficiency is enhanced for 2.4% so that energy conversion efficiency is substantially enhanced, and the ultrahigh energy efficiency 250W two-pole three-phase asynchronous motor can work in a continuous and stable way under the state of lower input power.

Description

technical field [0001] The invention relates to a motor, in particular to a 250-watt 2-pole three-phase asynchronous motor with ultra-high energy efficiency. Background technique [0002] Energy conservation and emission reduction is an unavoidable topic in today's world, affecting the living environment of human beings and the development of the world economy. As the key industrial field of energy saving and emission reduction. Among them, the energy-saving potential of the motor system is huge, and the electricity consumption accounts for about 60% of the country's electricity consumption, which has attracted the attention of all parties. The motor has a history of nearly 200 years since its inception, and the three-phase asynchronous motor has a history of more than 100 years. At present, it is widely used in various industries such as industry, agriculture, forestry, animal husbandry, and various fields of life. The necessary equipment in industrial production and peop...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a stator, rotor and iron core for a 250-watt 2-pole three-phase asynchronous motor aiming at the problem that the energy efficiency of the existing commonly used motor is low and the energy efficiency of the newly produced ultra-high-efficiency motor is unstable. , Punching slot and its dimension optimized design technical scheme, by comprehensively reducing its operating loss and temperature rise, to achieve the premise of ensuring an output power of 250 watts, reduce the input power to a greater extent and maintain a stable function

Images