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直流电机的基本工作原理与结构 PowerPoint PPT Presentation


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直流电机的基本工作原理与结构. 1.1 直流电机的基本工作原理与结构 1.1.1 直流电机的基本工作原理 直流电机分为直流电动机和直流发电机两大类,其工作原理可通过直流电机的简化模型进行说明。. 1. 直流发电机的工作原理. 图 1.1 为直流发电机的简化模型。图中 N, S 为固定不动的定子磁极, abcd 是固定在可旋转导磁圆柱体上的转子线圈,线圈的首端 a ,末端 d 连接到两个相互绝缘并可随线圈一同转动的导电换向片上。转子线圈与外电路的连接是通过放置在换向片上固定不动的电刷实现的。在定子与转子间有间隙存在,称其为气隙。.

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直流电机的基本工作原理与结构

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