Window Rebate Ventilation Grille Insulation for Heat Loss Control
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Solution Overview
Problem
Existing ventilation grilles in window rebates suffer from significant heat losses due to poor thermal insulation and the formation of thermal bridges, with current solutions being expensive and inefficient, particularly when adapting to different rebate widths.
Innovation Solution
A ventilation device featuring an insulating panel that covers the entire surface of the ventilation grille, integrated with built-in profiles, which can be easily adjusted to various widths, and protected by cover plates or films to prevent heat transfer and moisture ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If plastic bridges are provided in the built-in profiles to reduce thermal bridges, then thermal insulation is improved, but production cost and material cost increase significantly
Solution Approach 1:
The patent replaces expensive plastic bridges with a cost-effective alternative: an insulating panel made of inexpensive insulating material (such as foam board) that is attached to the built-in profile. This insulating panel provides adequate thermal insulation without the high material and production costs associated with plastic bridges, while also allowing for easy adaptation to different rebate widths.
2Loss of energy
If plastic bridges are used to prevent thermal bridges, then thermal insulation is improved, but the solution becomes expensive for each new rebate width
Solution Approach 1:
The patent segments the thermal insulation solution into a separate insulating panel that can be independently sized and attached to the built-in profile. This allows the insulating panel to be easily adapted to different rebate widths without requiring new profile designs, as the panel dimensions can be simply adjusted while maintaining the same connection system.
3Productivity
If the ventilation grille surface is left exposed, then ventilation function is maintained, but heat loss occurs across the unused surface area
Solution Approach 1:
The patent applies local quality by placing insulating material specifically in the areas of the built-in profile that are not used for ventilation (the portions between the ventilation duct and the grille surface). This localized insulation prevents heat loss in these specific areas while maintaining the ventilation function in the duct areas, achieving thermal insulation without compromising airflow.
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 cold downdraughts and condensation, reduces heat loss, and is more cost-effective and adaptable than existing solutions, ensuring efficient thermal insulation and aesthetic appeal.
Implementation Method 1
an insulating panel (9), which is provided along the internal space (5) across virtually the entire surface of the ventilation grille (4)... ensure that cold downdraughts and/or condensation at the rebate are prevented... no heat loss occurs across the surface of the ventilation grille next to the ventilation duct
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a ventilation device (1) having a ventilation grille (4), having built-in profiles (7) for installation in a rebate (3), in which a ventilation duct (8) is joined to this ventilation grille (4). This ventilation device (1) is insulated sufficiently well, but can be adapted in a simple and inexpensive manner to be installed in rebates (3) of various widths, since the ventilation device (1) comprises an insulating panel (9) which extends across the surface of the ventilation grille (4) and has an opening (10) for installing the ventilation duct (8) therein, said insulating panel (9) being installed in the rebate (3) together with the built-in profiles (7).