Microwave Oven Door Wave Choke Layout for Larger Viewing Area
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Solution Overview
Problem
The existing microwave appliance doors have a small window due to the dimensions of the wave choke system and door frame, limiting the view into the inner space.
Innovation Solution
A door design featuring an outer glass panel covering the complete outer side, an inner glass panel covering the central inner side, a door frame enclosing the circumferential sides, and a wave choke system arranged inside the casing, with a G-shaped profile and lamellae structure, allowing a larger inner glass panel and improved visibility while maintaining microwave leakage below 1 mW/cm2.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wave choke system is arranged in the outer portions inside the door, then microwave leakage is minimized, but the view into the inner space is limited
Solution Approach 1:
The door is divided into multiple glass panels (outer glass panel, intermediate glass panel, inner glass panel) and a door frame, with the wave choke system positioned in the outer portion between the outer and intermediate glass panels. This segmentation allows the viewing area on the inner side to be maximized while maintaining microwave leakage prevention in the outer portions where the wave choke system is located.
2Area of stationary object
If the inner glass panel is made large to improve view, then visibility is improved, but the door structure becomes more complex
Solution Approach 1:
The door assembly is segmented into multiple functional components: outer glass panel, intermediate glass panel, inner glass panel, door frame, and wave choke system. This segmentation allows the inner glass panel to be made large for improved viewing while the complex microwave shielding functions are handled by the dedicated wave choke system and other components, distributing the complexity across modular elements.
Solution Approach 2:
The door structure employs a nested arrangement where the wave choke system is positioned between the outer and intermediate glass panels, the intermediate glass panel is positioned between the outer and inner glass panels, and the heating element is positioned between the intermediate and inner glass panels. This nesting allows multiple functional layers to be integrated without significantly increasing the overall door thickness or complexity.
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 design provides an improved view into the microwave appliance with a compact, smooth surface door that minimizes leakage, allowing easy cleaning and maintaining safety standards.
Implementation Method 1
a wave choke system is arranged in the outer portions inside the door
Data Source
AI summary
A door for a microwave appliance. The door includes an outer glass panel ranging over a complete outer side of the door and an inner glass panel ranging over at least a central portion of an inner side of the door. The door includes a door frame covering at least the circumferential sides of the oven door and a wave choke system. The outer glass panel, the inner glass panel and the door frame form a casing of the door, wherein the wave choke system is arranged inside the casing of the door. The wave choke system is arranged in an outer portion of the interior of the door and circumferentially enclosed by the door frame. The wave choke system is arranged adjacent to an outer side of the inner glass panel.