Door Frame Profile with Metal Insulating Webs and Reflector Plates
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Solution Overview
Problem
Existing profiles for doors, walls, and windows are not suitable for fire protection due to the failure of plastic insulating bars in fires, and solid metal composite profiles are undesirable for weight, energy, and cost reasons.
Innovation Solution
A profile comprising an upper and lower part connected by metal bars with reflector plates for improved thermal insulation and fire resistance, allowing for flexible design and adaptation to specific needs, using metals with good corrosion resistance and thermal insulation properties, and optionally incorporating additional materials for bulletproofing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If plastic insulating bars are used to connect upper and lower parts for thermal insulation, then thermal insulation is improved, but fire resistance deteriorates due to failure in fire events
Solution Approach 1:
The patent changes the material parameter from plastic to metal for the insulating bars, specifically using metal bars with low thermal conductivity (lambda value) to maintain thermal insulation performance while achieving fire resistance. This parameter change resolves the contradiction by selecting a material that satisfies both thermal insulation and fire safety requirements.
Solution Approach 2:
The patent employs composite construction by combining metal bars with specific geometric configurations (webs running obliquely) to create a structure that achieves both thermal insulation and fire resistance. The composite design allows the metal bars to provide structural strength and fire resistance while their geometric arrangement maintains thermal insulation properties.
2Reliability
If solid composite profiles made of metal are used to improve fire resistance, then fire resistance is improved, but weight, energy consumption, and cost increase
Solution Approach 1:
The patent segments the connection structure between upper and lower parts by using discrete metal bars with webs rather than a continuous solid metal profile. This segmentation reduces the amount of metal material required, thereby reducing weight while maintaining fire resistance through the strategic placement of the segmented metal bars.
Solution Approach 2:
The patent applies local quality by placing metal bars only at specific locations where structural connection is needed, rather than making the entire profile solid. The webs are positioned obliquely to provide localized reinforcement for fire resistance while minimizing overall material usage and weight.
3Stability of the object's composition
If continuous walls are used to connect upper and lower parts for structural stability, then structural stability is improved, but heat conduction increases (thermal insulation deteriorates)
Solution Approach 1:
The patent segments the continuous wall connection into discrete metal bars with webs. This segmentation creates thermal breaks in the heat conduction path while maintaining structural stability through the geometric arrangement of the webs, which run obliquely to provide both connection and thermal insulation.
Solution Approach 2:
The patent applies local quality by creating web structures at specific locations on the metal bars rather than using continuous walls. The oblique web arrangement provides localized structural reinforcement for stability while simultaneously reducing heat conduction by creating thermal resistance paths.
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 provides enhanced thermal insulation, fire resistance, and bulletproofing while maintaining a lightweight and cost-effective design, suitable for various applications.
Implementation Method 1
at least one reflector plate is arranged between the upper part and the lower part
Implementation Method 2
for improved thermal insulation
Implementation Method 3
the upper part and lower part are connected to one another by metal bars. The webs can be designed in such a way that removal from the upper part or lower part is possible at any time
Data Source
Figure 1
Figure 2a~3e
Figure 4a~5b
AI summary
Profile for frames of doors, wall elements or windows comprising an upper part (1) and a lower part (2), each with an outer wall (3, 4), and connecting webs (5) made of metal. According to the invention, at least one reflector plate (8) is arranged between the upper part (1) and the lower part (2).