Air duct structure of range hood and range hood

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By setting a rotating photoconductive sensor and drive mechanism in the air duct structure of the range hood, the problem of low accuracy of the infrared sensor is solved, the accuracy of oil fume detection is improved and the sensor is protected, which is suitable for intelligent adjustment of the range hood.

CN120274307APending Publication Date: 2025-07-08QINGDAO HAIER WISDOM KITCHEN APPLIANCE CO LTD +1

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Patent Information

Application Number: CN202410020774.4
Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner
Filing Date: 2024-01-05
Publication Date: 2025-07-08

Application Information

Patent Timeline

05 Jan 2024

Application

CN202410020774.4

08 Jul 2025

Publication

CN120274307A

IPC: F24C15/20

CPC: F24C15/2021

Inventors: 陈新睿; 吴勇

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AI Technical Summary

Technical Problem

The infrared sensor of the existing range hood is installed on the shell, causing the smoke to not gather, reducing the accuracy of smoke concentration detection.

Method used

A photoconductive sensor is set in the air duct structure of the range hood and rotated by a driving mechanism to detect oil smoke at different positions of the air inlet. Combined with the design of the protective cover and mounting parts, the oil smoke is prevented from affecting the sensor.

Benefits of technology

The accuracy of oil fume detection is improved, the wind speed can be automatically adjusted when the oil fume concentration changes, the detection area is increased, and the service life of the sensor is extended.

✦ Generated by Eureka AI based on patent content.

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Figure CN120274307A_ABST

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Abstract

The invention belongs to the technical field of kitchen appliances, and particularly relates to an air duct structure of a range hood and the range hood. The air duct structure of the range hood comprises a shell, a detection device and a driving mechanism, the shell is used for being arranged in a shell of the range hood, the shell is provided with an oil fume channel, the oil fume channel is provided with an air inlet and an air outlet, and the detection device is rotationally arranged on the shell and used for detecting oil fume entering the air inlet; the driving mechanism is used for driving the detection device to rotate relative to the air inlet; according to the air duct structure of the range hood and the range hood, the accuracy of oil smoke detection of the range hood is improved.

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