Extractor unit for a kitchen appliance

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Food processors often emit greasy and smelly vapors during cooking, which can pollute the surrounding area and create an unpleasant environment.

Innovation Solution

An extraction unit is integrated into the food processor, featuring a detachable design with a fan and filter system that captures vapors directly from the container, allowing for efficient odor and grease reduction through a mechanical interface and data communication with the processor for optimized operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If an extraction unit is integrated into the food processor, then vapor extraction efficiency is improved, but device complexity increases

Engineering Contradiction:
Improvevapor extraction efficiencyVSAvoiddevice complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The extraction unit is integrated with the food processor base, combining vapor extraction functionality with the existing food processing device. The housing of the extraction unit forms part of the base structure, and the fan is integrated into the base, creating a unified device that reduces the need for separate ventilation equipment while improving vapor extraction efficiency

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The base of the food processor serves multiple functions: it supports the container, houses the motor for processing, and now also integrates the extraction unit with fan and filter system. This multi-functionality allows the single device to handle both food processing and vapor extraction, improving productivity without requiring additional separate devices

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If the extraction unit is designed as a detachable attachment, then adaptability is improved, but reliability decreases

Engineering Contradiction:
ImproveadaptabilityVSAvoidreliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The extraction unit is designed as a detachable attachment that can be separated from the food processor base. This segmentation allows the extraction unit to be removed for cleaning, maintenance, or storage, and enables the food processor to function independently if needed. The detachable design provides adaptability while maintaining reliable connections through properly designed attachment interfaces

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The attachment between the extraction unit and base is designed to be dynamically changeable - securely connected during operation for reliable vapor extraction, and easily detachable when needed for adaptability. The mechanical interface allows the system to transition between connected and separated states based on operational requirements

Inventive Principle:
Principle #15Dynamics

3Productivity

If the inlet opening is positioned on the lid above the container, then vapor capture efficiency is improved, but ease of operation decreases

Engineering Contradiction:
Improvevapor capture efficiencyVSAvoidease of operation
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The inlet opening is positioned on the lid in the vertical dimension directly above the container, allowing the extraction unit to capture vapors rising vertically from the cooking food. This vertical positioning optimizes vapor capture efficiency by intercepting vapors at their source before they disperse horizontally throughout the kitchen environment

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

Solution Approach 2:

The lid with the inlet opening is designed to be placed on the container before cooking begins. This preliminary action ensures that the vapor extraction system is already in position to capture vapors from the moment cooking starts, maximizing capture efficiency without requiring intervention during the cooking process that would compromise ease of operation

Inventive Principle:
Principle #10Preliminary action

4Object-affected harmful factors

If the extraction unit includes integrated filter and fan systems, then vapor filtration effectiveness is improved, but use of energy increases

Engineering Contradiction:
Improvevapor filtration effectivenessVSAvoiduse of energy
Core Design Contradiction:
Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

The extraction unit captures and filters the harmful vapors produced during cooking rather than allowing them to disperse. The fan and filter system, which consume energy, convert the harmful effect of vapor emission into a beneficial outcome by actively removing and filtering these vapors, delivering them to the filter where grease and odors are captured, thus transforming a harmful byproduct into a controlled and treated exhaust stream

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

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

The solution effectively reduces the odor and grease load in the vicinity of the food processor, enhancing cooking quality and convenience by providing a flexible and energy-efficient vapor extraction system.

Implementation Method 1

the exhaust unit can be designed to create an intake airflow, drawing vapors from the container through the inlet opening into the exhaust unit

Methodology Applied
Scientific EffectForced Convection: Forced Convection

Implementation Method 2

The vapors can then be filtered (e.g., within the exhaust unit) to reduce odors and/or grease

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP4129131A1Extractor unit for a kitchen appliance
Publication Date: 2023.02.08 BSH HAUSGERATE GMBH
  • EP4129131A1 patent drawingFigure 1a~1b
  • EP4129131A1 patent drawingFigure 2a~3a
  • EP4129131A1 patent drawingFigure 3b~4

AI summary

A fume extraction unit (200) for a food processor (100) is described, comprising a container (104) for processing food. The fume extraction unit (200) is designed to be mounted on the food processor (100). Furthermore, the fume extraction unit (200) includes an inlet opening (201) and is designed to create an intake airflow by which vapors (221) from the container (104) are drawn through the inlet opening (201) into the fume extraction unit (200).