1、This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr oco
2、ntroler and DS18B20 t emperature sensor. 项目三 起动机的拆卸与认知 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. T
3、he core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 复习提问 1.汽车发电机由哪些基本元件组成？ 答：皮带轮、风扇、前后端盖、电刷及电刷架、整流器、电容器、转子、定子 2.发电机转子的作用是什么？ 答：产生旋转的磁场 无锡汽车工程学校 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function
4、 of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 任务引入 无锡汽车工程学校 起动差异：拖拉机用人力起动，汽车用起动系统起动 任务一：了解起动系的组成和作用 任务二：熟悉起动机结构 This
5、paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontrol
6、er and DS18B20 t emperature sensor. 任务一 起动系的组成与功用 无锡汽车工程学校 1.组成： 蓄电池、点火开关、起动机 2.功用： 使发动机从静止状态转变为自行运动状态 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature
7、sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 任务二 起动机的结构认知 汽车起动机包括控制装置、直流电机和传动装置三部分。 无锡汽车工程学校 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the func
8、tion of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 准备工具 无锡汽车工程学校 13mm梅花扳手， 8mm套筒，十字起，电刷钩 This paper mainly int roduces
9、 the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperat
10、ure sensor. 二、起动机的结构认知 1.控制装置 电磁开关 无锡汽车工程学校 (1)接线柱（ 30、 C、 50） (2)接触盘、吸引线圈、保持线圈、回位弹簧、活动铁心 30接线柱 C接线柱 50接线柱 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperat
11、ure sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 二、起动机的结构认知 2.直流电动机 串联励磁部分 （ 1）电刷总成： 电刷（ +、 -），电刷架（ +、 -），电刷弹簧 无锡汽车工程学校 绝缘垫 搭铁电刷架 盘形弹簧 搭铁电刷 绝缘电刷架 This paper mainly int roduces the design of an intelige
12、nt emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 二、起动机的结构认知 2.直
13、流电动机 串联励磁部分 （ 2）磁场部分： 外壳、励磁绕组、磁极（铁心） 无锡汽车工程学校 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core c
14、omponent s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 二、起动机的结构认知 2.直流电动机 串联励磁部分 （ 3）电枢部分： 换向器、电枢线圈、铁芯、电枢轴 无锡汽车工程学校 换向器 电枢线圈 铁芯 电枢轴 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measu
15、rement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 二、起动机的结构认知 3.传动部分 传动部分包括： 拨叉、拨叉槽、单向离合器、驱动齿轮 无锡汽车工程学校 拨叉拨叉拨叉销拨叉销拨叉槽拨叉槽驱动齿轮驱动齿轮单向离合器单向离合器拨叉 单向离合器
16、 驱动齿轮 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 mi
17、cr ocontroler and DS18B20 t emperature sensor. 二、起动机的结构认知 一、操作示范 无锡汽车工程学校 电磁开关 电枢部分 电刷端盖 电刷架总成 磁场部分 单向离合器 拨叉 驱动机构外壳 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al
18、 temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 学生操作练习 教师巡回指导 一、操作注意事项 1.零件按照控制部分 直流电机部分 传动部分“ 一字 ” 排开； 2.每位同学逐个认识实物，说出其作用、名称； 3.防止零件掉地； 4.安全操作、文明认知。 二、任务分配 1.全班分成四个组，在四个工位上同时进行认知； 2.在组长的安排下，
19、按照座位顺时针方向逐个进行。 无锡汽车工程学校 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the syst
20、em ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 课堂检查 课堂评价 1.展示起动机的零部件： 2.检查学生掌握情况，学生互评： 3.老师点评： 无锡汽车工程学校 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus di
21、git al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 课堂小结 一、知识点： 1.起动系的组成： 2.起动系的功用： 3.起动机的结构： 二、技能点： 1.起动机的拆卸方法： 2.同学们的认知能力： 无锡汽车工程学校 This paper mainly int roduces the design of an intelige
22、nt emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor. 布置作业 1起动系的作用是什
23、么，由哪些元件组成？ 2起动机由哪些主要的零部件组成？ 3预习 :起动机的工作原理 无锡汽车工程学校 This paper mainly int roduces the design of an inteligent emperature cont rol system which realizes the function of temper at ur e measurement and cont rol by using single bus digit al temperature sensor DS18B20 and single chip microcom puter. The core component s of the system ar e AT89C51 micr ocontroler and DS18B20 t emperature sensor.
