LED Oven Light Holding Plate for Sealed Retrofit Mounting

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Solution Overview

Problem

Existing cooking appliances with conventional lighting technology face challenges in adapting to LED lighting due to temperature sensitivity and different installation requirements, leading to economic and sustainability issues with tool adaptation and redesign.

Innovation Solution

A holding plate with a fastening base and elastic sealing element is used to anchor the LED light source in the cooking chamber wall, allowing seamless transition from traditional to LED technology without modifying the muffle or light sources, using existing production tools and components.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If conventional lighting technology is used in cooking appliances with existing production tools, then manufacturing cost is reduced and production efficiency is maintained, but energy efficiency is poor and temperature control is insufficient for modern lighting requirements

Engineering Contradiction:
Improvemanufacturing costVSAvoidenergy efficiency
Core Design Contradiction:
Ease of manufactureVSUse of energy by moving object

Solution Approach 1:

A holding plate is introduced as an intermediary component between the existing opening in the cooking chamber wall and the LED light source. The holding plate adapts the conventional opening to accommodate the LED module with different installation requirements, enabling LED technology integration without modifying existing production tools or muffle components.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Use of energy by moving object

If LED light sources are installed directly in existing openings, then energy efficiency is improved, but the temperature sensitivity of LED requires greater distance from cooking chamber which conflicts with existing opening positions

Engineering Contradiction:
Improveenergy efficiencyVSAvoidinstallation adaptability
Core Design Contradiction:
Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The holding plate serves as a mediator that bridges the gap between the fixed opening position in the cooking chamber wall and the LED light source that requires greater distance due to temperature sensitivity. It enables proper spacing while maintaining integration with existing appliance structure.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The lighting system is segmented into separate functional components: the holding plate mounted in the existing opening, the LED light source positioned at appropriate distance, and light guides that transmit illumination into the cooking chamber. This segmentation allows each component to be optimized independently.

Inventive Principle:
Principle #1Segmentation

3Reliability

If production tools are adapted or replaced for LED lighting, then lighting technology is updated, but manufacturing cost increases and production time is extended

Engineering Contradiction:
Improvelighting technologyVSAvoidproduction efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The holding plate is designed as a universal adapter that can be integrated into existing production lines without requiring new specialized tools. It maintains compatibility with conventional manufacturing processes while enabling LED light source installation, thus preserving production efficiency during technology transition.

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

4Loss of energy

If the opening size in cooking chamber wall is reduced for LED light sources, then sealing is improved and heat loss is reduced, but installation flexibility is reduced and existing openings cannot be used

Engineering Contradiction:
Improveheat lossVSAvoidinstallation flexibility
Core Design Contradiction:
Loss of energyVSAdaptability or versatility

Solution Approach 1:

The holding plate creates a localized sealing structure at the opening position, concentrating the sealing function in a specific area rather than requiring the entire opening to be minimized. This allows the opening to maintain its original size for installation flexibility while achieving effective sealing through the plate's design.

Inventive Principle:
Principle #3Local quality

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 the use of LED lighting in cooking appliances with existing tools and components, ensuring proper alignment and sealing, reducing economic and environmental impacts of tool adaptation and redesign.

Implementation Method 1

an elastic element being arranged between the fastening base and the holding plate, which has a sealing effect

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP4033156B1Cooking appliance with holding plate for a cooking appliance light
Publication Date: 2023.06.07 BJB GMBH & CO KG
  • EP4033156B1 patent drawingFigure 1
  • EP4033156B1 patent drawingFigure 2
  • EP4033156B1 patent drawingFigure 3

AI summary

A cooking appliance is described and illustrated, comprising: - a cooking chamber surrounded by a cooking chamber wall, - an opening in the cooking chamber wall for receiving a cooking appliance light, - a cooking appliance light seated in the opening and serving to illuminate the cooking chamber, wherein: - a mounting plate is present, - the mounting plate has a receiving opening for the cooking appliance light, - the cooking appliance light is seated in the receiving opening, - the mounting plate anchors the cooking appliance light in the opening, - the mounting plate with the installed cooking appliance light closes the opening in the cooking chamber wall, - the cooking appliance light has an LED element as a light source and is provided with a light guide rod, wherein: - the light guide rod is seated in the opening in the cooking chamber wall.