Hob trough with protection unit

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Solution Overview

Problem

Existing cooktops, particularly gas cooktops, face issues with electromagnetic and thermal radiation interfering with electrical components, leading to potential failure and damage due to induced currents and excessive heating, and existing protective solutions are either ineffective or cumbersome to assemble and disassemble.

Innovation Solution

A cooktop pan with a protective unit that can be easily assembled and disassembled by plugging into a holding device, providing effective shielding against thermal and electromagnetic radiation without the need for screws or rivets, featuring an angled design with adapters for secure attachment and air cushion for enhanced insulation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a protective unit is attached to the hob using traditional fastening methods (screws, rivets), then the reliability and stability of the protective unit is improved, but the ease of assembly and disassembly deteriorates

Engineering Contradiction:

Improvestability of protective unit attachmentVSAvoidease of assembly and disassembly

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The protective unit is divided into multiple segments with individual adapters that can be independently attached to different locations on the hob, allowing for modular assembly and disassembly while maintaining overall stability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The adapter design features nested components where the protective unit adapter fits into the holding device adapter, creating a nested attachment system that provides secure fixation while allowing easy insertion and removal

Inventive Principle:

Principle #7Nested doll (Nesting)

2Ease of operation

If a protective unit is designed for easy assembly and disassembly without fastening parts, then the ease of operation is improved, but the reliability and stability deteriorates

Engineering Contradiction:

Improveease of assembly and disassemblyVSAvoidstability of protective unit attachment

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The adapter components feature curved and angled surfaces that provide mechanical interlocking through geometric shapes, ensuring stable attachment without requiring additional fastening parts

Inventive Principle:

Principle #14Spheroidality (Curvature)

Solution Approach 2:

The protective unit and holding device are merged through the adapter interface, combining the shielding function with the attachment function in a single integrated solution that is both easy to assemble and reliably stable

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If traditional fastening parts (screws, rivets) are used to attach the protective unit, then the reliability of attachment is improved, but the device complexity and manufacturing cost increase

Engineering Contradiction:

Improveattachment reliabilityVSAvoidcomplexity of assembly components

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

Traditional fastening parts (screws, rivets, clips) are extracted from the design, replacing them with an integrated adapter system that provides reliable attachment through geometric interlocking rather than separate fastening components

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The adapter serves multiple functions simultaneously: it provides mechanical attachment, ensures proper positioning, and maintains structural stability, eliminating the need for multiple specialized fastening components

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 provides reliable protection against radiation, improved stability during use and transport, and cost savings through simplified assembly and material efficiency, while ensuring effective shielding of electrical components.

Implementation Method 1

electromagnetic radiation and in particular heat radiation are produced during operation. This radiation impairs, for example, the operation of sensor devices or other electrical parts of the hob

Methodology Applied

Scientific EffectThermal radiation: Thermal Radiation

Implementation Method 2

electromagnetic radiation and in particular heat radiation are produced during operation. This radiation impairs, for example, the operation of sensor devices or other electrical parts of the hob and, in the worst case, even leads to failure of the electrical parts due to induced currents

Methodology Applied

Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 3

there is a risk of damage or even failure of the electrical parts if the gas flows generated by the hob contribute to the excessive heating of electrical parts, in particular by convection

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentEP2594851B1Hob trough with protection unit

Publication Date: 2021.03.17 BSH HAUSGERATE GMBH

Figure 1~2
Figure 3~4

AI summary

The trough (1) has a protective unit (40) for protecting a part of the trough against thermal radiation and/or electromagnetic radiation. The holder unit (30) holds the protective unit at the trough, where the protective unit is insertable into the holder unit and clamped in the holder unit in an inserted condition. Protective unit adapters (41, 42) i.e. projections, of the protective unit are insertable into a holder unit adapter i.e. recess, of the holder unit. The protective unit comprises two legs that are connected in a bent form.