Ceramic Hob Temperature Control for Different Cooking Containers

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Solution Overview

Problem

Existing hobs struggle to ensure satisfactory cooking processes with non-system-related cooking containers due to differences in heat conduction properties and shapes, which deviate from the system cooking containers used for determining temperature setpoints.

Innovation Solution

A hob with a control device that allows for individual temperature control across heated areas, enabling operators to select and adjust temperature setpoints for specific cooking levels based on the type and properties of cooking containers, using multiple preset temperature values and adjustable control elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If temperature setpoints are determined using system cooking containers, then cooking control is optimized for those specific containers, but cooking satisfaction deteriorates when using non-system-related cooking containers with different heat conduction properties and shapes

Engineering Contradiction:
Improvetemperature control precisionVSAvoidcompatibility with different cooking containers
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The patent implements dynamic adaptability by allowing the control device to adjust temperature setpoints based on detected cooking container properties. The system transitions from static pre-determined setpoints to dynamic adjustment based on actual container characteristics, enabling optimal cooking control across different container types while maintaining precision for each specific container.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the temperature setpoint parameter based on the detected cooking container type and properties. By modifying the temperature parameter dynamically according to container-specific characteristics such as heat conduction properties and shape, the system achieves both precision for the specific container and versatility across different container types.

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If multiple control elements with preset temperature setpoints are provided, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improvetemperature setting convenienceVSAvoidcontrol device structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent implements self-service by enabling the control device to automatically detect cooking container properties and adjust temperature setpoints without requiring manual selection by the user. The system serves itself by using sensors to identify container characteristics and autonomously selecting appropriate temperature parameters, thereby maintaining ease of operation while reducing the need for complex manual control interfaces.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent employs feedback mechanisms where the control device continuously monitors cooking container properties through temperature sensors and other detectors, then uses this feedback information to automatically adjust temperature setpoints. This closed-loop control maintains operational simplicity while achieving adaptability, as the system self-regulates based on real-time feedback rather than requiring complex pre-programmed controls for every container type.

Inventive Principle:
Principle #23Feedback

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 flexible and individualized temperature control, allowing for optimal cooking results regardless of the cooking container type, accommodating various cooking needs and material properties.

Implementation Method 1

a temperature sensor (6) for detecting the respective actual temperature value of the cooking product container

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP1926940B1Ceramic hob
Publication Date: 2013.12.11 BSH HAUSGERATE GMBH
  • EP1926940B1 patent drawingFigure 1
  • EP1926940B1 patent drawingFigure 2

AI summary

The invention relates to a ceramic hob (1) for a cooking appliance provided with a controll device (7) for controlling and/or adjusting a real temperature value on at least one part of a cooking plate (2) arranged in a container (4) for cooking by means of an associated heating device (5). The inventive ceramic hob comprises at least one temperature sensor (6) for determining the real temperature value of a heatable part (3) and at least one control element (8, 9, 10) used for setting said temperature to a desired value, wherein a desired temperature value of the heatable part (3) is assigned thereto. According to said invention several desired values can be assigned to one control element (8, 9, 10).