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第 4 章 电动机与发电机 PowerPoint PPT Presentation


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第 4 章 电动机与发电机. 4.1 直流电动机. 4.2 汽车交流发电机. 4.3 伺服电动机. 4.4 步进电动机. 第 4 章 电动机与发电机. 理解并掌握各种电机的结构和工作原理; 了解直流电动机的分类、机械特性和反转、调速的方法; 了解汽车交流发电机的励磁方式; 掌握汽车交流发电机的型号命名方法; 了解永磁电动机、步进电动机在汽车上的典型应用。. 本章要求 :. 4.1 直流电动机. 4.1.1 直流电动机的结构. 主要由磁极、电枢和换向器部分构成。. 1. 磁极. 用来在电机中产生磁场。. 分成铁心和励磁绕组。. 励磁式:

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第 4 章 电动机与发电机

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