Barrier Unit Structure for Plasma-Safe Appliance Electronics
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Solution Overview
Problem
Household appliances, particularly cooking devices, face challenges in ensuring safety due to the risk of electrical faults leading to overcurrent or overvoltage, which can cause plasma emission and spark gaps, potentially resulting in damage or fires.
Innovation Solution
The implementation of a barrier unit with spatial structuring elements and a protective module that includes a conductor track assembly and overcurrent protection devices, designed to separate electronic components and absorb ions/plasma, and provide enhanced attachment areas to prevent spark gaps and ensure safety by disconnecting power lines in case of faults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electronic components are densely arranged in the electronic unit, then the device becomes more compact and efficient, but the risk of electrical faults, plasma emission, and spark gaps increases
Solution Approach 1:
The electronic unit is divided into multiple independently enclosed assemblies, each surrounded by its own barrier unit. This segmentation isolates potential plasma sources, preventing widespread damage while allowing dense component arrangement within each compartment.
Solution Approach 2:
Barrier units serve as intermediary structures between electronic components and the surrounding environment. These barriers absorb and neutralize plasma before it can cause harm, enabling closer component placement while maintaining safety.
2Reliability
If barrier units are added to separate electronic assemblies, then safety is improved by absorbing plasma and preventing spark gaps, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The barrier units serve multiple functions simultaneously: they provide mechanical enclosure, absorb plasma, prevent spark gaps, and offer attachment surfaces for structural reinforcement. This multi-functionality reduces the need for additional separate safety components.
Solution Approach 2:
The barrier units are implemented as thin-walled enclosures that provide effective plasma absorption and spark prevention without adding significant bulk or complexity to the overall device structure.
3Reliability
If spatial structuring elements are added to the barrier unit to increase attachment surfaces, then the absorption capacity for ions and plasma is improved, but the manufacturing precision and production difficulty increase
Solution Approach 1:
The spatial structuring elements feature curved surfaces that naturally increase attachment area while being amenable to standard manufacturing processes. The curved geometry provides structural strength and adequate attachment surfaces without requiring complex precision machining.
4Reliability
If protective assemblies with overcurrent protection devices are implemented, then the disconnection of power lines during faults is ensured, but the device complexity and cost increase
Solution Approach 1:
Overcurrent protection devices are integrated directly into the barrier unit structure, combining safety functions with the existing enclosure. This merging approach provides comprehensive protection without adding separate, standalone protection systems.
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 significantly enhances safety by effectively absorbing and dissipating ions and plasma, preventing spark gaps and ensuring the disconnection of power lines during faults, thus reducing the risk of damage or fires and improving overall security.
Implementation Method 1
The barrier unit is designed to absorb ions and/or plasma emitted by the electronic assembly, especially in the event of a defect
Implementation Method 2
The deposition surface is designed to adsorb ions and/or plasma emitted by the electronic assembly
Implementation Method 3
the space structuring element is designed to provide additional attachment surfaces. In particular, the space structuring element is configured as a rib projecting from a wall of the barrier unit. This allows for increased safety, as the total area of the attachment surfaces is increased, thus improving the adsorption of ions and/or plasma
Data Source
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AI summary
The device has an electronic unit (20) and barrier units (50, 150), where an electronic component i.e. over current protection component, of the electronic unit delimits against another electronic component. The barrier units comprise space patterning elements, where one of the barrier units comprises space to be structured. The space patterning element is formed such that electronic elements of the electronic components are differentiated from each other in a mounted state. The barrier unit and the housing unit receive the electronic unit, and are separated from each other.