The invention has the advantages that: 1. the Curie temperature of the magnet is over 450 DEG C, which is enough to meet the requirement for operation temperature rise of the elevator tractor;
本发明的优点体现在：1。磁体的居里温度大于450 摄氏度，足以抵抗电梯曳引机的工作温升要求；
Quantitative Determinding the distribution of magnetic field of permanent magnet brushless d. c. motor, is very important to analyze its properties.
永磁无刷直流电动机磁场分布的定量确定对电机性能的预测极为重要。
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