Superhigh-energy-efficiency 4-kW four-pole three-phase asynchronous motor

Abstract

A superhigh-energy-efficiency 4-kW four-pole three-phase asynchronous motor comprises a stator and a rotor. Due to the fact that the outer diameters and the inner diameters of the stator and the rotor, the length of an iron core, and the number, the groove shape and the size of punching grooves are optimized systematically, the loss of a stator winding, the loss of a rotor winding and the loss of the iron core are largely lowered; on the premise that the output power is 4kW, compared with same-class products, the total energy loss amount of the superhigh-energy-efficiency 4-kW four-pole three-phase asynchronous motor is decreased to 481.2W from 599.2W and is decreased by 19.7%, the needed input power is decreased to 4.481kW from original 4.599kW, and the energy conversion efficiency is improved to 89.2% from 87.0% and is improved by 2.2%; compared with the latest national standard 'GB18613-2012' of 88.6% enforced in September, 2016, the energy conversion exceeds by 0.6% and is largely improved. The superhigh-energy-efficiency 4-kW four-pole three-phase asynchronous motor will provide powerful support for the work of energy conservation and emission reduction in China when being applied and popularized.

Description

technical field [0001] The invention relates to a motor, in particular to a super high-efficiency and energy-saving 4kW 4-pole three-phase asynchronous motor. 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 peo...

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a solution to the stator and rotor of a 4kW 4-pole three-phase asynchronous motor and its iron core, impulse, etc. The technical scheme of optimizing the design of the chip slot and its size, through comprehensively reducing its operating loss and temperature rise, can reduce the input power to the greatest extent and maintain a stable function under the premise of ensuring the output power is 4kW.

Images