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Intelligent control circuit of electro-heat water boiler

A technology of intelligent control and boiling water, which is applied in the direction of program control, computer control, general control system, etc., can solve the problems of no anti-electricity device, inconvenience, no temperature setting, temperature display and control, etc., to prevent dry burning, The effect of safe electricity environment

Inactive Publication Date: 2008-09-03
谭启仁
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electric heating tube of the electric heating water boiler in the prior art does not control the power supply, regardless of whether there is water in the container, the power can be turned on, but in the case of no water in the container, turning on the electric heating tube for heating may easily cause accidents such as dry burning
The electric boiling water boiler in the prior art has no temperature setting, temperature display and control functions, which brings inconvenience to users who need different water temperatures
The electric boiling water kettle in the prior art does not have an anti-electricity device, which brings unsafe factors for users to use electricity

Method used

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  • Intelligent control circuit of electro-heat water boiler

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Embodiment Construction

[0008] refer to figure 1 . The single-chip microcomputer in the figure is an eight-bit single-chip microcomputer of Microchip Company of the United States. Example is PIC16C57.

[0009] The device includes a pressure switch and a single chip microcomputer input and output circuit. The pressure switch is installed at the bottom of the container. One end of the pressure switch is connected to the I / O input terminal of the microcontroller, and the other end is grounded. The pressure switch is adjusted to close when the container has more than 0.5 liters of water. The I / O input terminal of the single-chip microcomputer is connected with a group of touch keys and connected with the positive pole of the power supply through a resistor, and the common end of the touch keys is grounded. The light-touch keys in this embodiment include an on key, an off key, a temperature rise setting key, a temperature drop setting key and a reset key. The I / O input terminal of the single-chip micr...

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Abstract

The invention relates to an intelligent control circuit for an electric water boiler, which is characterized in that a pressure switch is mounted on the bottom of a container and connected with the input end of a single chip microcomputer, and the pressure switch is closed when water amount in the container is adjusted to more 0.5L by the pressure switch. The input ends of the single chip microcomputer are connected with a group of touch keys, a zero line potential difference detecting circuit, a live line and zero line current difference detecting circuit and an A / D temperature control circuit respectively, the output ends of the single chip microcomputer are connected with a liquid crystal display, a luminous diode switch circuit and a dynatron switch circuit respectively, relay contacts connected with the dynatron switch circuit are connected with the in and out ends of the live line, the zero line and the earth line which are connected with an electric heating tube. According to the invention, only when the electric water boiler contains more than 0.5L water can an electric tube power be switched on, thus to effectively prevent boil dry and other accidents. The electric water boiler has temperature set and control functions, which brings convenience for users needing different water temperatures. The electric water boiler is equipped with a shockproof device, thus providing a safe electricity utilizing environment for users.

Description

technical field [0001] The invention relates to a control circuit, in particular to an intelligent control circuit for an electric heating kettle. Background technique [0002] Before the application date of the present invention, the electric heating water boiler had the following defects: the electric heating water boiler required that the electric heating tube must have water in the container when heating, and dry boiling was strictly prohibited. The electric heating tube of the electric heating kettle in the prior art does not control the power supply, and the power can be turned on regardless of whether there is water in the container. However, when the container is dry, the electric heating tube is turned on for heating, which may easily cause accidents such as dry burning. The electric boiling water kettle of the prior art has no temperature setting, temperature display and control functions, which brings inconvenience to users who need different water temperatures. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G05B9/02G01R19/00H02J3/32
Inventor 谭启仁
Owner 谭启仁
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