Gas Hob Ignition Shield With Air Chambers for Heat Protection
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Solution Overview
Problem
Existing gas cooking range designs fail to adequately protect ignition devices from thermal and electromagnetic radiation, leading to potential damage and requiring complex assembly processes with additional fasteners.
Innovation Solution
A non-detachable protective device with insulating air chambers and a connection to the ignition device, made from heat-resistant materials like polyetheretherketone, is integrated into the gas hob, providing effective shielding and simplifying assembly by eliminating the need for extra fasteners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective device is provided between the gas burner and ignition device, then the ignition device is protected from heat radiation, but the device complexity increases
Solution Approach 1:
The ignition device is integrated into the protective device as a single unit. The protective device serves dual functions: it shields the ignition device from heat radiation while simultaneously housing the ignition device and providing mounting functionality. This merging eliminates the need for separate protective plates and reduces the number of components.
Solution Approach 2:
The protective device is designed to perform multiple functions: thermal shielding, electromagnetic radiation protection, structural housing, and mounting support. By making the protective device multi-functional, the patent reduces overall device complexity while maintaining comprehensive protection for the ignition device.
2Strength
If additional fasteners are used to secure the ignition device, then the connection is more secure, but the ease of manufacture decreases
Solution Approach 1:
The ignition device is integrally formed with the protective device through injection molding, creating a unified structure where the ignition device is embedded within the protective device housing. This integral construction provides secure mechanical attachment without requiring separate fasteners, screws, or clips.
Solution Approach 2:
The patent replaces traditional mechanical fastening systems (screws, clips, snap-fits) with an injection molding process that creates integral bonds between the ignition device and protective device. This substitution simplifies manufacturing by eliminating multiple assembly steps and fastener components.
3Reliability
If the protective device is made of heat-resistant plastic material, then the protection effectiveness is improved, but the manufacturing cost increases
Solution Approach 1:
The protective device is made from heat-resistant plastic materials such as polyetheretherketone (PEEK) or other high-temperature resistant polymers. These composite materials provide excellent thermal and electromagnetic radiation protection while maintaining manufacturability through injection molding processes, offering a cost-effective alternative to metal materials.
4Ease of operation
If the ignition device is integrated into the protective device, then the ease of operation is improved, but the ease of repair decreases
Solution Approach 1:
While the ignition device is integrated into the protective device housing, the electrical connection components (plug-in elements) are designed as separable interfaces. This allows the ignition device assembly to be removed and replaced as a unit from the gas cooktop, maintaining serviceability while preserving the integrated protective structure.
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 effectively shields the ignition device from thermal and electromagnetic radiation, ensuring durability and ease of installation by integrating the ignition device within the protective device, which is made from heat-resistant materials and features insulating air chambers for improved heat management.
Implementation Method 1
To prevent damage to the ignition device from heat radiation emitted by the gas burner, a protective device may be provided between the gas burner and the ignition device
Implementation Method 2
The protective device has several insulating air chambers, the air chambers being connected to the surroundings of the gas cooktop, and the air chambers being distributed around the ignition device
Implementation Method 3
The ignition device may also have a reflective coating. For example, a metal foil may be attached to the ignition device
Implementation Method 4
the ignition device is overmolded with material from the protective device using an injection molding process
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a gas hob (2) with a gas burner (3), an ignition device (4) for igniting the gas burner (3) and a protective device (7) arranged between the gas burner (3) and the ignition device (4), the ignition device (4) is connected to the protective device (7) in such a way that a connection (8) between the ignition device (4) and the protective device (7) cannot be detached, in particular cannot be detached without being destroyed.