Multi-Glass Lid Window for Cooler High-Speed Cooking
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Solution Overview
Problem
In heating cooking apparatuses, the high-speed hot air heating function causes the temperature of the outer surface of the lid portion to rise excessively, posing a challenge in maintaining user safety and efficiency.
Innovation Solution
The incorporation of a see-through window portion in the lid portion, comprising at least three glass plates including a heat-ray reflecting glass, a first glass plate, and a second glass plate, arranged side by side with intervals, to reduce heat transfer and absorption, thereby minimizing the temperature rise on the outer surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-speed hot air heating function is used, then heating performance is improved, but temperature of outer surface of lid portion rises excessively
Solution Approach 1:
The see-through window portion is divided into multiple glass plates (first glass plate, heat-ray reflecting glass, second glass plate) arranged in sequence. This segmentation allows each layer to perform a specific function: the first glass plate provides basic transparency, the heat-ray reflecting glass reflects heat rays back into the accommodation space, and the second glass plate provides additional insulation. Together, they reduce heat transfer to the outer surface while maintaining heating performance.
Solution Approach 2:
The see-through window portion uses a composite structure combining different types of glass plates with distinct properties. The heat-ray reflecting glass has special coating or composition that reflects infrared radiation, while the other glass plates provide structural support and transparency. This composite approach enables the window to simultaneously maintain visibility and reduce heat transmission to the lid's outer surface.
2Temperature
If see-through window portion with multiple glass plates is added, then heat transfer to lid surface is reduced, but device complexity increases
Solution Approach 1:
The see-through window portion serves multiple functions simultaneously: it provides visual observation of the cooking process, maintains structural integrity of the lid, and acts as a thermal barrier through the heat-ray reflecting glass. By integrating these functions into a single component assembly, the design reduces the need for additional separate parts, thereby limiting the increase in overall device complexity despite the multi-layer construction.
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 configuration effectively reduces the temperature rise on the outer surface of the lid portion, enhancing user safety and operational efficiency while maintaining the heating performance of the apparatus.
Implementation Method 1
The heat-ray reflecting glass reflects heat rays
Data Source
AI summary
A heating cooking apparatus (1) includes a heating cooking chamber (10), a lid portion (20), and heat supply units (31), (32), and (34). The heating cooking chamber (10) includes an accommodation space 1A and an opening 11A. The opening 11A communicates with the accommodation space 1A. The lid portion (20) is configured to close the opening 11A. The lid portion (20) includes a see-through window portion (21). The see-through window portion (21) makes the accommodation space 1A visible. The see-through window portion (21) includes at least three glass plates (210). The at least three glass plates (210) include a heat-ray reflecting glass (212) that reflects heat rays, a first glass plate (213) located proximate to the accommodation space 1A, and a second glass plate (211) located opposite to the accommodation space 1A. The heat-ray reflecting glass (212) is located between a first glass plate (213) and a second glass plate (211). The first glass plate (213), the heat-ray reflecting glass (212), and the second glass plate (211) are arranged side by side in a line at intervals.