Artificial intelligence range hood

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Solution Overview

Problem

Conventional hood systems inefficiently discharge cooking oil fumes, leading to health risks such as lung cancer due to the wide distance between fume generation and suction, and reduced efficiency in narrow and wide spaces.

Innovation Solution

An artificial intelligence range hood with a movable intake and exhaust duct that adjusts vertically, combined with a control unit to manage suction and discharge based on harmful substance detection, allowing 360° fume collection and filtration.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conventional hood system is installed at a distance above a range, then the hood body structure is simple and easy to install, but the distance between cooking oil fume generation point and suction point is wide, resulting in poor suction efficiency and health hazards

Engineering Contradiction:
Improveinstallation simplicityVSAvoidsuction efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent introduces a movable intake and exhaust duct that can adjust its position dynamically. This duct can move vertically along a guidance hole to change the distance between the suction opening and the cooking surface, allowing the system to adapt to different cooking scenarios and maintain optimal suction efficiency while remaining installable in various configurations.

Inventive Principle:
Principle #15Dynamics

2Ease of manufacture

If suction ducts are formed in a circular hole structure with an open lower portion, then the device complexity is low and manufacturing is easy, but the suction and discharge efficiency is significantly reduced in wide places

Engineering Contradiction:
Improveduct manufacturing simplicityVSAvoidsuction efficiency in wide places
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent segments the suction system into multiple components: a fixed intake and exhaust duct for structural support, a movable intake and exhaust duct for adaptive positioning, and a discharge mode conversion unit with selectable openings. This segmentation allows each component to perform its specific function optimally while maintaining manufacturing feasibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent adds vertical movement capability to the suction system through the movable duct that travels along a guidance hole. This transforms the static circular suction opening into a dynamic three-dimensional suction zone that can adjust its position vertically to effectively capture fumes in both narrow and wide cooking spaces.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Device complexity

If a fixed hood structure is used, then the device complexity is low, but the system cannot adapt to different cooking scenarios or optimize suction in narrow versus wide spaces

Engineering Contradiction:
Improvehood structure complexityVSAvoidadaptability to different cooking scenarios
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent introduces a movable intake and exhaust duct that can adjust its position dynamically. This duct can move vertically along a guidance hole to change the distance between the suction opening and the cooking surface, allowing the system to adapt to different cooking scenarios and maintain optimal suction efficiency while remaining installable in various configurations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent adds vertical movement capability to the suction system through the movable duct that travels along a guidance hole. This transforms the static circular suction opening into a dynamic three-dimensional suction zone that can adjust its position vertically to effectively capture fumes in both narrow and wide cooking spaces.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Device complexity

If cooking oil fumes are discharged only from an upper portion of the hood, then the hood body structure is simple, but the discharge distance is wide and users may breathe in harmful fumes

Engineering Contradiction:
Improvedischarge structure simplicityVSAvoidexposure to cooking oil fumes
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the discharge system into multiple components: a fixed intake and exhaust duct for structural support, a movable intake and exhaust duct for adaptive positioning, and a discharge mode conversion unit with selectable openings. This segmentation allows each component to perform its specific function optimally while maintaining manufacturing feasibility.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Rapid and efficient discharge of cooking oil fumes and indoor pollutants, preventing health hazards and improving indoor air quality by selectively controlling ducts and fan operation.

Implementation Method 1

a hood fan motor (140) for forcibly moving the cooking oil fumes and the indoor polluted air introduced into the fixed discharge intake and exhaust duct (130) toward an outside

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Data Source

PatentEP4711680A1Artificial intelligence range hood
Publication Date: 2026.03.18 DABIN WATEC
  • EP4711680A1 patent drawingFigure 1
  • EP4711680A1 patent drawingFigure 2
  • EP4711680A1 patent drawingFigure 3

AI summary

The present invention relates to an artificial intelligence range hood which may rapidly and easily discharge cooking oil fumes and indoor polluted air by selectively opening or closing a movable intake and exhaust duct or an indoor polluted air intake and exhaust duct, may prevent industrial accidents in advance, such as lung cancer that may be caused by continuously sucking cooking oil fumes including various harmful substances by a reference amount or more, may automatically create a pleasant indoor air quality environment by significantly improving indoor air quality, may rapidly suck and discharge the cooking oil fumes by lowering the movable intake and exhaust duct to a portion where the cooking oil fumes are generated, and may rapidly discharge the cooking oil fumes by allowing the cooking oil fumes to sequentially pass through the movable intake and exhaust duct and a fixed intake and exhaust duct after the cooking oil fumes are collected into a cooking oil fume suction hole in a 360° lateral direction of an oil drip tray, thereby protecting the health of a cook.