电加热系统用12v电瓶做电源,固态继电器。温控开关。加热棒。电热偶。中间继电器。分别怎么连接呢?

2024-12-03 02:05:15
推荐回答(1个)
回答1:

其实没有那么复杂,简单的说吧,热电偶是接在温控开关上,热电偶有三根线,温控开关上有接线图,接上就可以了,在温控开关上设定所需要的温度值。温控开关一般有干接点输出和集电极开路输出。只是不知道你的加热功率多大,一般温控开关的输出接点容量不大,所以不能直接将加热棒串联在温控开关的接点上进行通断控制。因此需要一个中间转接,以增大接点容量,可以用固态继电器或者中间继电器或者直流接触器任选一种进行控制。如果选用固态继电器的话,可以直接用12V电源串接温控开关的常闭触点进行控制其通断,因为固态继电器的控制电压多为3-32V。当温度低于设定时12V通过温控开关常闭接通固态继电器,其主触头接通加热棒就可以了。如果将固态继电器换为接触器或者继电器,一样的用法。

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