A water conductivity detection drinking machine comprises a single chip computer controller, temperature detection circuit, keyboard input circuit, voice alarm circuit, display circuit, output control circuit and power supply circuit of the rectifier filter circuit and microcontroller, each function corresponding to the interface connection; it also includes water conductivity detection circuit. The water conductivity detection circuit is composed of two water resistance detecting electrode, voltage dividing resistors R29 and IC8A operational amplifier, one detection electrode access instant pulse signal generated by the microcontroller, a detecting electrode through a resistor R29 grounding, in-phase input end of a road connecting the IC8A operational amplifier; output operation IC8A terminal signal amplifier connected with the singlechip sampling; when the influent, generated by the single-chip microcomputer a The instantaneous pulse signal of water power, two detection electrodes between the equivalent resistance of the water, the water resistance and form a loop grounding resistor R29, obtain the conductivity of the water sampling signal, the signal amplified by the operational amplifier IC8A input single-chip processing and make the corresponding control, if the conductivity of the water inlet of the qualified. It is heated, water dispenser refrigeration control water temperature control; if the conductivity of the water inlet is not qualified, the control of drinking machine discharge through waste water; if in a period of time are not qualified, will display the alarm.
【技术实现步骤摘要】
本专利技术涉及一种饮水机的控制器,尤其是涉及一种带水电导率检测的饮水机电脑控制器。
技术介绍
一般的净水的饮水机只是单纯的加装几段滤芯,以此来保证水的纯净度。但是,以下两种情况下就不能够保证水的纯净度(1)、使用颗粒活性炭作为最后级滤芯时候,在该滤芯新的时候,由于粉尘的作用使的水质下将;(2)、任何材质的滤芯都是有使用寿命的,在寿命结束后,经过其净化的水也不能够保证纯净度。目前所有这些同类产品中都存在以下缺点1、没有对净化后的水进行电导率检测,无法判断水质的好坏,所以也不能够及时提醒用户对相应的部件进行检修;2、没有对水进行控制,不管水质的好坏都进入用户的饮水桶内;3、如果长期的水质不合格都不会发出警告显示,和切断进入饮水桶的水路,排放废水功能。
技术实现思路
本专利技术的目的在于提供一种带水电导率检测的饮水机电脑控制器,通过检测判断水的电导率来控制饮水机,确保饮水机中水质的质量。本专利技术的目的可通过以下的技术措施来实现包括单片机、温度检测电路、按键输入电路、声音提示电路、显示电路、负载输出控制电路及整流滤波电源电路,上述各功能电路与单片机上相应的功能接口连接;其特征在于还包括水电导率检测电路,电导率检测电路由两个水电阻探测电极、分压电阻R29和运算放大器IC8A组成,其中一个探测电极接入由单片机产生的瞬间脉冲信号,另一个探测电极一路经分压电阻R29接地,一路连接运算放大器IC8A的同相输入端;运算放大器IC8A的输出端连接单片机的信号采样脚;当进水时,由单片机产生一个瞬间脉冲信号给水通电,两探测电极之间为等效的水电阻,该水电阻与接地的分压电阻R29形成 ...
【技术保护点】
【技术特征摘要】
【专利技术属性】
技术研发人员:李宇,陈惠标,刘秀红,刘春兰,
申请(专利权)人:广州威纳电子科技有限公司,
类型:发明
国别省市:
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