永磁无刷直流电机在打草机设计中的应用研究

Study on Application of Permanent Magnet Brushless DC Motor in Grass Trimmer Design

结合永磁无刷直流电机设计和应用,以Φ300 mm、DC36 V打草机为例,从电池包空载放电时间、切割效率、单电池包工作时间、抗过载性及结构优化设计等五个方面分析永磁无刷直流电机与永磁有刷直流电机的区别,得出永磁无刷直流电机性能占优的结论。

Take the Φ300 mm DC36 V grass trimmer for example,combined with the design and application of permanent magnet brushless DC motor,the author analyzes the difference between permanent magnet brushless DC motor and permanent magnet brush DC motor from five aspects such as battery pack discharge time,cutting efficiency,single battery pack working time,antioverload resistance and structural optimization design,and comes to the conclusion that permanent magnet brushless DC motor superiors.