电热水器的原理与检修
    点此下载全文
引用本文:郭占苗.电热水器的原理与检修[J].计算技术与自动化,2011,(1):67-70
摘要点击次数: 1511
全文下载次数: 203
作者单位
郭占苗 (西安航空职业技术学院 电子工程系陕西 西安710089) 
中文摘要:详细分析储水式电热水器的电路原理,以鲁斌牌QZD-1型热水器为例介绍电热水器的电源电路,水位显示电路,防止干烧电路和防止漏电电路。重点介绍水位显示电路和防止干烧电路,水位显示电路主要以IC1(MC4069)反相器为核心,可以检测注水到某一位置;防止干烧电路主要以IC2(LM339)比较器为核心,实现当水箱水位低于2/6位置时断电。最后,就该电热水器可能出现的故障,给出针对故障进行检修的方法,为初学电热水器设计与检修者提供参考。
中文关键词:储水式电热水器  反相器  比较器  原理  检修
 
Principle and Maintenance About the Electric Water Heater
Abstract:In this article,the author mainly analyzed circuit of storage type electric water heater . Furthermore, detailed analysis about the water heater named Lu Bin QZD-1 were introduced , including power circuit, level display circuit, prevention of dry circuit and preventing leakage circuit. Especially,the last two parts of the circuit were very important. IC1(MC4069) comparator is core component of level display circuit,which can detect the position of water in the liner;simultaneously, IC2(LM339) is considered as a key device of prevention of dry circuit ,which could cut off the power if the water level is lower than 2/6 location in the water tank. Finally, the author proposed appropriate methods of examination and repairs for possible faults of the storage-type electric water heater,which can provide reference to beginners who learn design and maintenance.
keywords:electrical storage water heater  inverter  comparator  principle  examination and repairs
查看全文   查看/发表评论   下载pdf阅读器