Household appliance input unit, especially for a hob

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Solution Overview

Problem

Existing domestic appliance input units lack flexibility and convenience in setting operating parameters, particularly for hobs, requiring complex sequences and not allowing for quick and precise selection of power levels.

Innovation Solution

A domestic appliance input unit with operating element power units featuring multiple stages and intermediate stages, arranged alternately for easy selection, combined with a touch-sensitive sensor unit and computing unit for intuitive operation and text information processing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a complex sequence of operating sensors and actuating sensors is used to set operating states, then the control can be precise, but the operating time and convenience deteriorate

Engineering Contradiction:
Improveprecision of parameter selectionVSAvoidoperating time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The control element power unit is segmented into multiple operating areas (first, second, third, fourth) with each area containing main stages and intermediate stages. This segmentation allows users to directly access different power levels without following a complex sequential operation, thereby reducing operating time while maintaining precise control over the parameter selection.

Inventive Principle:
Principle #1Segmentation

2Measurement precision

If multiple operating sensors must be operated in a predetermined sequence, then the control can be accurate, but the ease of operation deteriorates

Engineering Contradiction:
Improveaccuracy of parameter settingVSAvoidconvenience of operation
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The control interface is divided into multiple operating areas with main stages and intermediate stages, allowing users to directly select desired power levels without complex sequencing. This segmentation maintains accurate parameter setting while significantly improving ease of operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control system allows users to directly activate desired operating states by simply operating the corresponding operating area, eliminating the need to follow predetermined sequences of multiple sensors. The system serves itself by directly translating user input into the desired operating state without requiring complex user actions.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If a simple operating element power unit is used, then the ease of operation is good, but the adaptability and flexibility deteriorate

Engineering Contradiction:
Improveconvenience of useVSAvoidflexibility of parameter selection
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The control element power unit is divided into multiple operating areas (first, second, third, fourth) with each containing main stages and intermediate stages. This segmentation provides a simple, intuitive interface for users while simultaneously offering extensive adaptability and flexibility through the multiple power levels and intermediate options available across different operating areas.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The control interface incorporates intermediate stages between main stages, adding an additional dimension to the power level selection. This allows users to access both coarse power levels (main stages) and fine-tuned power levels (intermediate stages) within a simple operating framework, thereby enhancing flexibility without complicating the user interface.

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

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

Enables quick and precise selection of power levels, enhancing user convenience and flexibility by allowing direct selection of intermediate stages and preventing erroneous parameter changes through intuitive touch-sensitive operation.

Implementation Method 1

The sensor unit (36a) is formed by a touch-sensitive input unit (38a) with touch-sensitive input areas (40a)

Methodology Applied
Scientific EffectCapacitive sensing: Capacitance

Data Source

PatentEP2181289B1Household appliance input unit, especially for a hob
Publication Date: 2020.06.24 BSH HAUSGERATE GMBH
  • EP2181289B1 patent drawingFigure 1
  • EP2181289B1 patent drawingFigure 2
  • EP2181289B1 patent drawingFigure 3

AI summary

The invention relates to a household appliance input unit, especially for a hob (10a, 10b), comprising at least one operating element unit (12a, 12b) designed as a power unit (14a, 14b) for the operating elements. The aim of the invention is to provide a household appliance input unit with improved operating characteristics in terms of a suitable operating time and/or high flexibility. To this end, the operating element power unit (14a, 14b) has a plurality of operating regions (16a, 16b) with which at least two main stages (18a, 18b) and at least one intermediate stage (20a, 20b) can be associated.