Range hood purification control method and device and range hood

By acquiring the operating status of the range hood and predicting future trends in air pollutant concentration, and combining this with human detection sensors to identify kitchen activity scenarios, the system dynamically controls auxiliary air purification devices. This solves the problem of existing range hood purification functions being disconnected from cooking needs, achieving intelligent air purification effects and energy optimization.

CN122149004APending Publication Date: 2026-06-05GUANGDONG CHENGYI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGDONG CHENGYI TECH CO LTD
Filing Date
2026-03-20
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The negative ion purification function of existing range hoods requires users to manually turn it on or only starts automatically after the machine is turned off. It cannot respond to the state of air pollution in the kitchen in real time, resulting in the purification function being out of touch with actual needs and affecting the air purification effect.

Method used

By acquiring the operating status of the range hood and the concentration of air pollutants, the system can predict future trends in pollutant concentration, dynamically control the operation mode of the auxiliary air purification device, and combine this with human detection sensors to identify kitchen activity scenarios, thereby achieving intelligent purification control.

Benefits of technology

It improves the air purification effect in the kitchen, reduces the disconnect between purification functions and actual needs, optimizes energy utilization, and enhances the matching degree between purification strategies and cooking behavior.

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Abstract

The application discloses a range hood purification control method and device and a range hood, and belongs to the technical field of kitchen appliances. The method comprises the following steps: acquiring the working state of the range hood; in the case that the working state is a start-up state, acquiring the air pollutant concentration at the current time and predicting the change trend of the air pollutant concentration at a future target time; and controlling the operation mode of the auxiliary air purification device according to the air pollutant concentration at the current time and the change trend. The application further acquires the air pollutant concentration at the current time and predicts the change trend of the pollutant concentration at the future target time in the start-up state, realizes dynamic perception and prediction of the kitchen air quality, makes the purification function no longer dependent on manual operation or fixed timing of the user, but matches the generation rule and diffusion trend of pollutants in the actual cooking process, thereby reducing the technical problem that the purification function is disconnected from the real demand, and improving the air purification effect of the kitchen environment.
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