Computer controller in drinking water device capable of testing conductivity of water

A water dispenser and controller technology, applied in computer control, electrical program control, program control in sequence/logic controllers, etc., can solve the problems of no water, inability to judge the quality of water quality, and no water conductivity detection, etc. To achieve the effect of preventing the increase of water conductivity
CN1540463AInactive Publication Date: 2004-10-27GUANGZHOU QINGTIAN INDAL
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
GUANGZHOU QINGTIAN INDAL
Publication Date
2004-10-27
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The computer controller includes singlechip, temperature detection circuit, key entry circuit, sound hint circuit etc. The said each functional circuit is connected to relevant interface of the singlechip. The computer controller also includes circuit for testing conductivity of water composed of two exploring electrodes for water resistance, divider resistance and operational amplifier. One exploring electrode is connected to instant pulsing signal generated by singlechip. One route of another exploring electrode through divider resistance is connected ground, and another route is connected to common mode input end of operational amplifier. Output end of operational amplifier is connected to signal sampling pin of singlechip. The drinking water device ensures water quality by testing conductivity of water.
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Description

technical field

[0001] The invention relates to a water dispenser controller, in particular to a water dispenser computer controller with water conductivity detection. Background technique

[0002] Ordinary water purifiers simply add a few filter elements to ensure the purity of the water. However, the purity of water cannot be guaranteed in the following two cases: (1), when granular activated carbon is used as the final filter element, when the filter element is new, the water quality will deteriorate due to the action of dust; (2), The filter element of any material has a service life. After the service life is over, the purified water cannot guarantee the purity.

[0003] The following disadvantages exist in all these similar products at present:

[0004] 1. There is no conductivity test for the purified water, so it is impossible to judge whether the water quality is good or bad, so it is impossible to remind the user to overhaul the corresponding components in time; ...

Claims

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