Window Frame Locking Element with Vapor Slots
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Solution Overview
Problem
Existing window and door frame technologies face issues with water drainage blockage due to bending barrier elements and condensate collection in rebate areas, and difficulties in accurately metering adhesive due to uncontrolled flow through centering elements.
Innovation Solution
A frame profile with a blocking element integrated into the rebate area, featuring slots that allow water vapor passage while preventing adhesive flow, achieved through co- or post-co-extrusion and precise slot dimensions, ensuring reliable sealing and water vapor diffusion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a barrier element is provided to prevent glass bonding, then glass bonding is prevented, but the barrier element bends away from the pane and blocks water drainage
Solution Approach 1:
The locking element is segmented with slots that divide it into multiple sections, allowing water to pass through while maintaining the overall barrier function against adhesive and glass bonding
Solution Approach 2:
Different regions of the locking element have different properties: the material provides barrier functionality against adhesive, while the slots provide water permeability, creating local quality variations within the same component
2Reliability
If an elastic seal is provided to seal the gap between insulating glass and frame, then sealing is improved, but condensation collects in the fold area and cannot be removed
Solution Approach 1:
The locking element is divided into sections by slots, preventing continuous condensation accumulation by allowing vapor escape paths while maintaining sealing at the ends
Solution Approach 2:
The locking element functions as a porous structure with slots that allow water vapor diffusion while providing mechanical sealing, preventing condensation buildup
3Ease of manufacture
If centering elements with gaps are provided to allow adhesive flow, then adhesive can reach the rebate area, but dosing the required amount of adhesive becomes difficult
Solution Approach 1:
The locking element has slots with specific dimensions that create local quality variations, allowing controlled adhesive flow through the slots while maintaining precise dosing through the defined slot geometry
Solution Approach 2:
The slot width is specifically dimensioned to control adhesive flow parameters, allowing precise dosing by adjusting the slot dimensions to match the required adhesive amount
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 effectively prevents water drainage blockage and condensate accumulation while ensuring precise adhesive placement, enhancing the functionality of the blocking element as both a barrier and a convection barrier for heat transport.
Implementation Method 1
water and, in particular, water vapor can pass through the locking element in a non-sealing manner
Implementation Method 2
The locking element is then bonded to a rebate area or a block profile arrangement of the frame, which is inserted into the rebate area of the frame. This bond is achieved through co- or post-co-extrusion
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
The window or door or facade element (1) has a frame, which has multiple frame profiles made of plastic. A width of a groove is measured such that the diffusion of water vapor through a blocking element (30) is enabled in a non-sealing manner. A locking bolt is formed opposite to an adhesive layer (31) in a rebate area (17) of a blade frame profile (6).