毕业论文《汽车空调制冷系统故障分析及检修》

成都纺织高等专科学校

毕业论文（设计）

题目：汽车空调制冷系统故障分析及检修系部：机械工程学院

姓名：

学号：

专业：汽车检测与维修技术

年级班级： 2010级汽车检测与维修技术101班

指导教师：

二0一三年六月

成都纺织高等专科学校机械工程学院

毕业设计（论文）任务书

题目名称：汽车空调制冷系统故障分析及检修

题目性质：□真实题目□虚拟题目

√

学生学号：指导教师：

学生姓名：学生专业：汽修101

成都纺织高等专科学校机械工程学院

2013年 5月 5 日

毕业

任务

书

导教师

签名：

013 年

5 月

5 日

摘要

现

在轿车

都基本

上都装

有空调

在不同

季节都

能给驾

驶员提

供一个

车内舒适的环境。但当空调在长时间的工作之后也会出现各种各样的故障汽车空调系统常见的故障有高压管被油污继电器电阻值过大空调压缩机不工作温控开关失效尤其是不制冷的这种现象也较为多见。汽车空调产生不制冷的故障现象大多是制冷系统所引起的我们在维

修过程中除了要求维修工要有一个好的诊断思维和方法以外对故障进行全面的分析分析储

故障可能的原因先从外围找故障然后有里及外的进行检查在维修时要做到认真细致方可彻底完全地排除故障。

汽车空调系统中出现的故障不能片面的下结论故障的原因本文通过收集大量的资料和参考书通过平常实习中的实例进行总结最后得出结论。

关键词制冷原理，不制冷检修，制冷不足的检修，维修注意事项。

ABSTRACT

Now cars are basically are equipped with air conditioning can give the driver to provide comfortable environment of a vehicle in different seasons. But when the fault is common fault ofautomobile air conditioning system will also appear various after long time working with high-pressure pipe oil relay resistance value is too large air-conditioning compressor not working temperature control switch failure, especially the phenomenon of no refrigeration is also more see. Automotive air conditioning failure phenomenon is mostly caused by no refrigeration refrigeration system we require repair work must have a good thinking and method of fault diagnosis other than to conduct a comprehensive analysis of causes of failure may be the first storage from the periphery to find fault check and then in and outside in the repair must be carefully before completely troubleshooting except in the repair process. In this paper, the fault reason of automobile air conditioning system fault early can not only through the collection of a large amount of data and reference books through the usual case practice summarized conclusion.

Keywords：Refrigeration principle, no refrigeration maintenance, maintenance of

refrigeration is insufficient, repair the matters needing attention.

目录

第1章汽车空调技术简介

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1.1 汽车空调技术的发展

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1.2 汽车空调的组成与原理------------------------

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第2章汽车空调的检修

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2.1空调不制冷

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2.2空调的制冷不足

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