Skylight Window IGU Support and Insulation Design
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Solution Overview
Problem
Conventional skylight windows face challenges in providing improved insulation and unobstructed views due to their design, which often results in reduced light influx and increased energy consumption for illumination and heating.
Innovation Solution
The skylight window design features an Insulated Glazing Unit (IGU) with an exposed interior major surface positioned below the top of the frame side member, a supporting leg that is positioned farther away from the side surface of the interior pane, and a removable lining panel protrusion that covers the supporting leg, allowing for better light entry and improved insulation by positioning insulation material between the sash and frame members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the IGU is positioned closer to the exterior to maximize light entry, then light influx is improved, but insulation performance deteriorates due to increased thermal bridging through the frame
Solution Approach 1:
The patent positions the IGU at an offset distance from the frame in the lateral dimension, creating a three-dimensional arrangement where the IGU is neither too close nor too far. This spatial optimization allows light to enter effectively while maintaining adequate insulation distance, resolving the contradiction between light influx and thermal performance
Solution Approach 2:
The patent introduces an intermediary space between the IGU and frame that can accommodate insulation material. This intermediary zone acts as a thermal buffer, allowing the IGU to be positioned for optimal light entry while the insulation material compensates for any thermal losses, thus maintaining energy efficiency
2Strength
If supporting legs are positioned closer to the IGU edges for structural support, then structural strength is improved, but view quality deteriorates due to increased obstructions
Solution Approach 1:
The patent applies local quality by positioning supporting legs at specific optimized locations rather than uniformly across the IGU. The legs are placed at distances that provide adequate structural support while minimizing their visual impact, creating different functional zones: support-critical areas have legs, while view-critical areas remain clear
Solution Approach 2:
The patent employs asymmetric positioning of supporting legs, where legs may be positioned at different distances from IGU edges depending on the local structural requirements and viewing angles. This asymmetric arrangement optimizes both structural support and view quality by placing legs where they are least obtrusive
3Stability of the object's composition
If frame side members are extended higher to provide structural support, then structural stability is improved, but light influx deteriorates due to increased obstructions
Solution Approach 1:
The patent segments the frame structure into functional zones: upper portions provide structural support and stability, while lower portions near the IGU are minimized to reduce obstructions. This segmentation allows each part of the frame to serve its primary function without compromising the other
Solution Approach 2:
The patent optimizes the vertical dimension of frame side members by extending them to the minimum necessary height for structural stability. By carefully controlling the vertical extent of frame members, the design achieves adequate support while maximizing the unobstructed glass area for light entry
Data Source
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AI summary
A skylight window for being installed in a roof of a building, the skylight window comprising a window frame having four frame side members, a window sash having four sash side members, and an IGU, a first frame side member comprising a lining panel protrusion located lower than an exposed interior major surface of the IGU in a height direction, wherein the lining panel protrusion protrudes away from the IGU, the lining panel protrusion comprising a first surface for abutting a surface of a reveal panel or lining panel so as to position the reveal panel or lining panel, wherein a first sash side member comprises an IGU supporting leg for supporting the IGU, the supporting leg, in the height direction, extending beneath the IGU and supporting the exposed interior major surface of the IGU, wherein, in the closed position of the skylight window, the first surface of the lining panel protrusion in a lateral direction extending along the exposed interior major surface of the IGU is positioned farther away from the side surface of the interior pane than the supporting leg.