Inductive Cookware Positioning for Cable-Free Heating Alignment

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Solution Overview

Problem

Existing cooking systems with induction heating units face challenges in providing efficient and cost-effective positioning support for cookware, often requiring external energy sources and resulting in increased energy costs, material costs, and complex setups.

Innovation Solution

A cooking system with a base unit and positioning unit that incorporates inductive elements, allowing for self-sufficient positioning of the cookware relative to the induction heating unit, reducing energy costs and improving flexibility and comfort, while integrating positioning elements within the base unit to save space and materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If external energy sources and cable-supported connections are used for positioning support, then positioning accuracy can be improved, but energy costs increase and device complexity increases

Engineering Contradiction:
Improvepositioning accuracyVSAvoidenergy costs
Core Design Contradiction:
Measurement precisionVSUse of energy by moving object

Solution Approach 1:

The positioning element is designed to operate autonomously using inductive coupling with the induction heating unit. The base unit generates positioning signals inductively without requiring external power sources or cable connections, enabling self-sufficient positioning support while reducing energy costs and device complexity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces mechanical cable-supported connections with inductive coupling for power and signal transmission. This substitution eliminates physical cables while maintaining positioning accuracy, reducing device complexity and improving ease of operation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If external energy sources and cable-supported connections are used for positioning support, then positioning functionality can be ensured, but device complexity increases

Engineering Contradiction:
Improvepositioning functionalityVSAvoidcable-supported connection
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The positioning element operates autonomously through inductive coupling, eliminating the need for external power sources and cable connections. This self-sufficient design maintains positioning functionality while significantly reducing device complexity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The induction heating unit serves dual purposes: providing heating functionality and enabling positioning support through inductive coupling. This multi-functionality eliminates the need for separate positioning systems, reducing overall device complexity while ensuring positioning reliability

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

3Ease of manufacture

If positioning elements are integrated in the base unit, then material costs and production costs can be reduced, but positioning precision may be compromised

Engineering Contradiction:
Improveproduction costsVSAvoidpositioning precision
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The positioning element is integrated directly into the base unit, merging the positioning function with the heating support structure. This integration reduces material costs and production costs while maintaining positioning precision through optimized inductive coupling design

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent optimizes parameters such as coil geometry, winding density, and magnetic material properties to ensure that the integrated positioning element achieves sufficient precision despite the simplified construction and reduced material usage

Inventive Principle:
Principle #35Parameter changes

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 system enables efficient, energy-independent positioning of cookware, reducing energy and material costs, enhancing application flexibility, and improving user convenience and maintenance efficiency.

Implementation Method 1

at least one positioning element, which is assigned to the base unit (12) and is designed as an inductive element (24), in particular as a coil, which is provided for inductive coupling to support the positioning

Methodology Applied
Scientific EffectInductive coupling: Electromagnetic Induction

Implementation Method 2

an induction heating unit (18), which is provided for heating the cookware element (14)

Methodology Applied
Scientific EffectInduction heating: Induction Heating

Data Source

PatentEP3383134A1Cooking system and method for positioning a cookware element
Publication Date: 2018.10.03 BSH HAUSGERATE GMBH
  • EP3383134A1 patent drawingFigure 1~2
  • EP3383134A1 patent drawingFigure 3
  • EP3383134A1 patent drawing

AI summary

The invention is based on a cooking system (10) with at least one base unit (12), which is provided in at least one heating operating state for an arrangement between a cookware element (14) to be heated and a cover plate (16), with an induction heating unit (18), which is provided for heating the cooking utensil element (14), and with a positioning unit (20) which is provided for supporting positioning of the base unit (12) relative to the induction heating unit (18). In order to provide a generic device with improved properties in terms of positioning, it is proposed that the positioning unit (20) has at least one positioning element (22) assigned to the base unit (12), which is designed as an inductive element (24) and is intended for this purpose, at least to contribute in part to assisting in the positioning of the washer unit (12) relative to the induction heating unit (18).