Insulating Glass Element Adapter Profile Mechanical Securing
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Solution Overview
Problem
Existing insulating glass elements for glass facades face safety risks due to loose adhesive bonds under thermal stress and lack of pressure equalization, leading to potential glass pane falling and increased load from heated air.
Innovation Solution
A mechanically secured insulating glass element design featuring an adapter profile strip between the outer glass pane and the frame, with securing clips and channel-shaped indentations for air circulation, ensuring both mechanical attachment and ventilation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive bonding alone is used to attach the outer glass pane to the frame, then the structure is simple, but the reliability deteriorates due to loose adhesive bonds under thermal stress
Solution Approach 1:
The attachment system is segmented into multiple functional components: adapter profile strip for mechanical support, securing clips for clamping force, and adhesive bonding for sealing. This segmentation allows each component to perform its specific function optimally, resolving the contradiction between reliability and complexity by distributing the attachment function across multiple specialized elements rather than relying on a single adhesive bond.
Solution Approach 2:
The attachment system combines different materials and bonding mechanisms (mechanical fastening via securing clips, chemical bonding via adhesive, and structural support via adapter profile) to create a composite attachment system. This composite approach ensures reliable attachment under thermal stress while maintaining reasonable structural complexity.
2Reliability
If the rebate space is sealed, then the insulation performance is improved, but the temperature rises causing thermal expansion and increased load on the glass pane
Solution Approach 1:
The rebate space is designed with dynamic characteristics through the adapter profile strip that allows controlled movement and pressure equalization. The adapter profile can expand and contract with thermal changes, and the securing clips allow for slight movements, transforming the static sealed space into a dynamic system that can accommodate thermal expansion while maintaining insulation performance.
Solution Approach 2:
The rebate space is segmented into multiple zones: the insulated cavity between glass panes, and the adapter profile strip region that acts as a thermal break and pressure equalization zone. This segmentation allows the main insulation cavity to remain sealed for thermal performance while the adapter region provides a pathway for pressure equalization, resolving the contradiction between insulation and thermal expansion load.
3Ease of manufacture
If the outer glass pane is only glued to the adapter profile strip, then the manufacturing process is simple, but the safety deteriorates due to potential adhesive bond failure
Solution Approach 1:
Different attachment methods are applied to different parts of the glass pane: the adapter profile strip provides mechanical support and structural attachment to the frame, while adhesive bonding provides sealing and local reinforcement. This local differentiation of attachment quality ensures safety against falling while maintaining manufacturing simplicity, as the critical load-bearing function is handled by the mechanically attached adapter profile.
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 solution enhances safety by preventing glass pane falling and reduces loads on the insulating glass element through mechanical securing and ventilation, allowing air to escape and colder air to enter, thereby alleviating thermal expansion issues.
Implementation Method 1
continuous channel-shaped indentations which enable air circulation from the rebate space or cavity of the aluminum frame to the outside and vice versa. This allows the heated air to escape and colder ambient air to enter the rebate area to ventilate it.
Implementation Method 2
the air between the frame rebate and the glazing heats up considerably when exposed to solar radiation etc. and thereby expands, as a result of which an additional load acts on the insulating glass element.
Data Source
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AI summary
The invention relates to an insulating glass unit (1) for a glass facade, comprising at least: a stepped glazing (2) with at least two glass panes (2a, 2i), at least one adapter profile strip (4) formed at least partially around the insulating glass unit (1), which is arranged between an outer glass pane (2a) of the stepped glazing (2) and a frame (10) of the glass facade, and at least one locking clip (3), wherein the outer glass pane (2a) and the at least one adapter profile strip (4) each have at least one groove (5) in their side edges into which the at least one locking clip (3) engages. The invention further relates to a glass facade, comprising at least one frame (10) and a plurality of insulating glass units (1), wherein at least one of the insulating glass units is designed according to the invention.