Research on the Principle of High Temperature Demagnetization of Variable Frequency Compressor
Variable frequency compressor motor permanent magnet material generally uses NdFeB,high temperature permanent magnet will produce demagnetization phenomenon,demagnetization will lead to motor overheating,winding burn,refrigeration oil deterioration,crankshaft wear and a series of problems.This paper mainly explores the mechanism of high temperature demagnetization of variable frequency air conditioning compressor,and studies the method of anti-high temperature demagnetization by key control factors to improve the reliability of compressor.