Movable Door Damping Device for Microwave Sealing
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Solution Overview
Problem
Existing microwave ovens face challenges in maintaining a leak-free and user-friendly design due to high-frequency damping devices that interrupt visible surfaces, making cleaning difficult and allowing potential leaks from thermal expansion or wear-related deviations.
Innovation Solution
The high-frequency damping device is integrated into the inner structural unit of the appliance door and can be moved and clamped by elastic pressure means relative to the peripheral structural unit, ensuring seamless integration and compensation for positional changes between the door and container edge, preventing leaks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If high-frequency damping devices are attached as separate elements to the oven flange or door, then effective shielding of electromagnetic radiation is achieved, but the visible surfaces are interrupted and cleaning becomes difficult
Solution Approach 1:
The high-frequency damping device is merged with the inner structural unit of the appliance door to form an integrated assembly. This combining eliminates the need for separate damping elements attached to the door or flange, thereby maintaining continuous visible surfaces that are easy to clean while preserving effective electromagnetic radiation shielding through the integrated damping structure.
2Reliability
If the appliance door and container edge maintain precise alignment, then leak-free shielding is achieved, but thermal expansion and wear tolerances cause deviations and potential leaks
Solution Approach 1:
The inner structural unit of the appliance door is designed to be movable relative to the peripheral structural unit, allowing dynamic adjustment to compensate for thermal expansion and wear tolerances. This dynamic capability enables the damping device to maintain optimal positioning and sealing effectiveness despite dimensional changes, preventing leaks while adapting to varying operational conditions.
3Reliability
If elastic pressure means are used to compensate for position deviations, then leak-free operation is maintained, but the door structure becomes more complex
Solution Approach 1:
The elastic pressure means are integrated into the movable connection between the inner and peripheral structural units of the door, merging the sealing function with the positioning mechanism. This integration achieves leak-free operation through tolerance compensation while minimizing additional complexity by combining multiple functions into a unified structural arrangement.
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
This solution provides optimal high-frequency shielding and prevents the escape of damp and dirty vapors while maintaining a cleanable appliance design, even with deviations from nominal dimensions, and allows for a more compact and simplified door structure.
Implementation Method 1
elastic pressure means which can move and brace the high-frequency damping device in relation to one another
Data Source
Figure 1~2
AI summary
The high-frequency cooking appliance has a cooking container (1) that can be closed by a door (6), wherein a high-frequency damping device (11) is arranged between an inner assembly (11/10) of the door (6) facing the loading opening (2) of the cooking container and a container rim (3) that surrounds or forms the loading opening (2). To adapt the high-frequency damping device (11), which prevents microwave emission, to faulty tolerance deviations in the position of the door (6) and the cooking container (1), the invention provides that the high-frequency damping device (11) is a component of the inner assembly (11/10) of the door (6) and is movable and tensionable relative to a peripheral assembly (7) of the door (6) by elastic pressure means (12).