Refrigerator Upper-Wall Lighting Layout to Prevent Eye Dazzle
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Solution Overview
Problem
Illumination elements in home appliances, such as refrigerators and freezers, directly dazzle users when activated, reducing usage comfort due to direct light exposure.
Innovation Solution
Positioning an illumination element on the upper wall of the housing, higher than the lower region closer to the front, with a rear edge or folded edge design to prevent direct exposure, and optionally concealing it on a rear face or inside the housing to avoid occupying space and facilitate maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the illumination element is positioned to illuminate the housing interior, then the illumination effectiveness is improved, but the user's eyes are dazzled by direct light exposure
Solution Approach 1:
The illumination element is positioned in the upper wall at a height above the lower region, utilizing the vertical dimension to create spatial separation. This dimensional change allows the light to illuminate the housing interior effectively while the upper positioning prevents direct line-of-sight exposure to the user's eyes, thereby resolving the contradiction between illumination effectiveness and eye dazzling.
2Object-affected harmful factors
If the illumination element is positioned higher on the upper wall, then direct light exposure to user is reduced, but the illumination coverage may be reduced
Solution Approach 1:
The illumination element is positioned at a specific local region in the upper wall (above the lower region but still within the housing interior space). This localized positioning strategy ensures that the light directs its coverage toward the housing interior while the elevated position naturally limits direct exposure to the user. The local quality of positioning achieves both reduced direct exposure and maintained illumination coverage.
3Object-affected harmful factors
If the illumination element is concealed on the rear face, then user comfort is improved, but the assembly complexity increases
Solution Approach 1:
The upper wall is segmented into different regions (lower region and illumination region), with the illumination element positioned in the illumination region that is elevated above the lower region. This segmentation allows the illumination element to be concealed in the rear face area while maintaining a structured and organized assembly process. The segmented design simplifies the overall assembly by providing clear spatial zones rather than requiring complex integration.
Data Source
AI summary
A home appliance, particularly a cooling device with a housing, has an illumination element positioned on the upper wall of the housing for illuminating the housing and the upper wall of the housing. The upper wall includes an illumination region which incorporates the illumination element and where the illumination element is positioned at a higher position than a lower region of the upper wall. The lower region is closer to the front side of the home appliance than the illumination element.