Water purifier and control method

By introducing a post-filter and a multi-stage water circuit control mechanism into the water purifier, the problem of poor water quality in the first cup after the water purifier has been solved, achieving efficient water quality improvement and resource utilization, extending the filter life, and improving the intelligent control and water production rate of the water purifier.

CN115991517BActive Publication Date: 2026-07-24FOSHAN VIOMI ELECTRICAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FOSHAN VIOMI ELECTRICAL TECH
Filing Date
2021-10-19
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

After the water purifier has been left to stand for a period of time, ions from the wastewater side of the reverse osmosis pressure filter will permeate into the pure water side, causing the TDS of the pure water to rise. The TDS value of the first cup of water will be too high and will not meet the drinking standards.

Method used

It adopts a post-filter to buffer pure water and uses a multi-stage water circuit control mechanism that combines pure water and wastewater circulation, including pure water return branch and wastewater return branch, to carry out multi-stage flushing and water production operations, thereby improving the intelligent control level of the water purifier.

Benefits of technology

It significantly improves the intelligent control level of water purifiers, enhances the quality of the first cup of water, avoids water waste, extends the service life of filter cartridges, and improves the water production rate and drinking water quality of water purifiers.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN115991517B_ABST
    Figure CN115991517B_ABST
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Abstract

The application discloses a water purifier and a control method, wherein the water purifier comprises a water production branch, a post device, a pure water return branch and a waste water return branch, and a booster device; the water production branch comprises a filter inlet, a filter, a pure water outlet and a waste water outlet; when the filter satisfies a washing condition, the filter is washed in a first stage and / or a second stage; after the washing operation is completed, when a water taking instruction is received, according to a preset water making mode, the water production branch is controlled to perform a water making operation, and pure water discharged from the pure water outlet is buffered to the post device to be taken in a first stage and / or a second stage. It can be seen that the application can provide a way of buffering pure water by using the post device to solve the problem of poor water quality of the first cup of water, and a multi-stage water path control mechanism combining pure water and waste water circulation is used to make water and wash the water purifier, so that the intelligent control level of the water purifier is significantly improved.
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