汽车空调制冷系统教学的逻辑起点

The logic starting point of automobile air conditioning refrigeration system teaching

在高职汽车检修类专业汽车空调制冷系统教学中,由于多数教材和教学过程中忽略关键内容,存在教学目的不明确,教学重点和难点不突出,前导教学内容对后续教学内容支持不力的瓶颈,通过补充R134a制冷剂的饱和蒸发压力特性曲线和汽车空调R134a制冷系统工作条件分析的内容,获得较大的教学成效。

This essay introduces that in the teaching of automobile air conditioning and refrigeration system of automobile overhaul specialty in higher vocational education,because most textbooks and teaching process ignore the key content,the existence of the teaching purpose is not clear,the teaching emphases and difficulties are not prominent,the leading teaching content is not good for the follow-up teaching content.By supplementing the saturated evaporation pressure characteristic curve of the R134a refrigerant and the contents of the R134a refrigeration system of automobile air-conditioning,the teaching results are obtained.