Water level control circuit used for heating purified water and heating container

A technology of water level control and pure water, applied in the direction of liquid level control, fluid heater, non-electric variable control, etc. It can solve the problems of water overflow, water level control device failure, high resistance pure water level monitoring and control, etc. problem, to achieve the effect of reducing corrosion, good applicability, and reducing ionization process

Active Publication Date: 2012-06-20
BEIJING HALSSY TECH
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The present invention designs a water level control circuit and a heating container for heating pure water. The technical problem it solves is that when the heating container heats pure water, the existing water level monitoring circuit and detection electrodes cannot detect high resistance pure water. The water level is effectively monitored and controlled, and the water level control device is prone to failure and water overflow and leakage

Method used

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  • Water level control circuit used for heating purified water and heating container
  • Water level control circuit used for heating purified water and heating container
  • Water level control circuit used for heating purified water and heating container

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Embodiment Construction

[0027] Combine below figure 1 and figure 2 , the present invention is further described:

[0028] Such as figure 1 As shown, the base of the triode transistor 95 is connected to the water level electrode, the emitter is grounded, the sensitivity resistor 94 is connected between the emitter and the base, the collector is connected to the microcomputer intelligent controller 91, and the collector is connected to the circuit power supply voltage VCC. A pull-up resistor 92 is also connected, and a current limiting resistor 93 is also connected between the circuit power supply voltage VCC and the electrode common terminal.

[0029] The turn-on voltage of the triode transistor 95 is 0.7V; under the effect of the resistance of pure water itself and the sensitivity resistor 94, when the voltage of the water level electrode reaches 0.7V, the triode transistor 95 is just turned on, and the microcomputer intelligent controller 91 When the voltage of pin 1 changes from 3.3V to 0V, its...

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PUM

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Abstract

The invention relates to a water level control circuit used for heating purified water. The water level control circuit comprises a microcomputer intelligent controller (91), a circuit power supply voltage (VCC), a triode transistor (95), a water level electrode and an electrode common terminal, wherein the water level electrode is connected with the microcomputer intelligent controller (91) through the triode transistor (95) which achieves a switching action; and the circuit power supply voltage (VCC) is applied between the water level electrode and the electrode common terminal. According to the invention, a technical blank of carrying out effective water level control on the purified water by virtue of water boilers or other containers is filled up, so that the application range of the water boilers is enlarged, and the use effect is obviously improved.

Description

technical field [0001] The invention relates to a water level control circuit and a heating container, in particular to a water level control circuit and a heating container for pure water heating. Background technique [0002] Existing container heaters (except the traditional float type) have a set of simple induction devices for controlling water level. The induction device for controlling water level of the electric heating container is divided into upper and lower induction probes and electrodes. The probe and electrode sense the water, so as to achieve the control of the liquid level in the container. [0003] However, the water level sensing device of the existing electric heating container can only be aimed at ordinary water sources. Once the water source is purified by RO pure water machine, the TDS (total dissolved solids) value of pure water will reach below 10ppm, that is, 1 liter of aqueous solution contains less than 1 / 1000 ml of solute. The resistance value...

Claims

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Application Information

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IPC IPC(8): G05D9/12F24H9/20
Inventor 文应刚
Owner BEIJING HALSSY TECH
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