Spring-Mounted Gas Range Ignition Electrode Against Impact Damage

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Solution Overview

Problem

Conventional gas stoves face issues with ignition electrode durability due to external impact, leading to potential detachment of the insulating ceramic layer and misfiring, as the electrodes protrude when the burner is removed for cleaning and are made of hard, heavy materials.

Innovation Solution

A gas stove design featuring a cover plate with a first ignition electrode opening, a connection base with a receiving part for the electrode, and a spring device between the electrode connecting part and the base, which reduces the risk of damage to the ceramic layer by absorbing external impact forces, using a compression spring for stability and ease of production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the burner is removed for cleaning, then the area around the burner can be cleaned, but the ignition electrodes protrude unprotected and can be damaged by external impact

Engineering Contradiction:
Improvecleaning accessibilityVSAvoidignition electrode durability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

A spring device is installed between the connection base and the ignition electrode to provide beforehand cushioning. When external impact occurs on the protruding ignition electrode during burner removal or cleaning, the spring device absorbs the impact force through elastic deformation, preventing damage to the ceramic insulating layer and electrode structure.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The spring device acts as an intermediary element between the rigid connection base and the fragile ignition electrode. This intermediary component provides mechanical cushioning and protects the electrode from direct transmission of impact forces, while still maintaining electrical connection functionality.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If heavy metal burners are used to ensure durability under high temperatures, then thermal stability is improved, but the weight increases and may cause damage to the insulating ceramic layer

Engineering Contradiction:
Improvethermal stabilityVSAvoidimpact force on ceramic layer
Core Design Contradiction:
TemperatureVSForce

Solution Approach 1:

The spring device provides beforehand cushioning against the heavy weight of metal burners. When the burner is installed, the spring device is compressed and stores elastic potential energy, creating a cushioning effect that absorbs impact forces when the burner is placed or moved, preventing damage to the ceramic insulating layer from the heavy metal components.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Strength

If the ignition electrode is made with hard materials for durability, then strength is improved, but the risk of ceramic layer detachment under external impact increases

Engineering Contradiction:
Improveelectrode strengthVSAvoidimpact damage risk
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The spring device provides beforehand cushioning that compensates for the brittleness of hard ceramic materials. While the ceramic layer maintains its strength for normal operation, the spring device absorbs external impact forces before they can cause catastrophic failure or detachment of the ceramic insulating layer.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 spring device significantly reduces the risk of damage to the insulating ceramic jacket of the ignition electrode, ensuring reliable ignition and preventing misfiring by absorbing external impacts, while also simplifying assembly and reducing production costs.

Implementation Method 1

a spring device (24) between the receiving part (10) and the electrode connecting part (8) is provided. In the gas stove according to the invention, this spring device provided between the ignition electrode connection base and the ignition electrode considerably reduces the risk of damage or destruction of the insulating ceramic jacket of the ignition electrode by external impact forces

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2267371B1Gas range
Publication Date: 2015.01.21 BSH HAUSGERATE GMBH
  • EP2267371B1 patent drawingFigure 1~3
  • EP2267371B1 patent drawingFigure 2
  • EP2267371B1 patent drawingFigure 5~7

AI summary

The present invention relates to a gas stove (30) which comprises the following components: a cover plate (5) with a first ignition electrode opening (9), a connection base (6) which is located below the cover plate and with at least one receiving part (10) for receiving an ignition electrode and an ignition electrode (4) which has an insulating ceramic jacket (3) and at least one electrode connection part (8) and is connected to the connection base by connecting the receiving part and the electrode connection part. Such a gas range is characterized by a spring device between the accommodating part and the electrode connecting part. In the gas stove according to the invention, this spring device (24) provided between the ignition electrode connection base and the ignition electrode considerably reduces the risk of damage or destruction of the insulating ceramic casing of the ignition electrode by impact forces acting from outside.