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영어

In this paper, concepts for high-efficiency induction motor with sharing core 37kw and below are established and a prototype is constructed. The need for developing high-efficiency induction motor die can be analyzed in terms of electromagnetic design and analyzing technique, mechanical design technology, material technology, and production technique. In order to produce prototypes, motor design, property analysis, and comparison of material cost and efficiency are needed. Methods for such include basic motor design, experiment design, equivalent circuit method, and finite element method. Among these, experiment design can be assessed according to optimal design, main factors, optimal regions, and others. For producing die for constructing prototype, inspection of die development process during die design, understanding of details stage by stage, and optimization of strip layout are essential. When constructing dies, improvement on causes of wear of punch, improvement of equipment and surrounding devices, adjustment of post structure for improvement of die durability, and shear load distribution analysis are necessary. Based on these factors, high-efficiency induction motor prototypes for 5.5kw, 7.5kw, 11kw, 4 polar, and 6 polar sharing cores are constructed.