Sliding Profile Insulating Web for Thermal Stress Compensation

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Solution Overview

Problem

Components such as doors and windows experience stress due to differential thermal expansion of inner and outer shell parts, leading to deformation and sealing issues, which existing solutions often fail to adequately address effectively.

Innovation Solution

Incorporating a sliding profile and insulating web with receiving chambers for fittings, where the insulating web is firmly connected to the inner shell part and the sliding profile is on the outer shell part, allowing for thermal expansion compensation without stress, and featuring a guide profile with profile projections for sealing and displacement compensation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the inner and outer shell parts are rigidly connected, then structural stability is improved, but thermal stress-induced deformation increases

Engineering Contradiction:
Improvestructural stabilityVSAvoidthermal stress-induced deformation
Core Design Contradiction:
Stability of the object's compositionVSShape

Solution Approach 1:

The patent applies the dynamics principle by introducing a sliding profile mechanism that allows the outer shell part to move relative to the inner shell part. This dynamic connection enables the structure to adapt to thermal expansion and contraction, preventing rigid stress accumulation while maintaining overall structural stability. The sliding profile transforms the rigid connection into a controlled movable joint that accommodates dimensional changes.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent employs parameter changes by modifying the connection state between shell parts from fixed to movable. The sliding profile changes the mechanical parameters of the connection, allowing relative displacement while maintaining structural integrity. This parameter transformation enables the structure to handle thermal stress without deformation.

Inventive Principle:
Principle #35Parameter changes

2Strength

If the outer shell part is firmly fixed to the inner shell part, then structural rigidity is improved, but sealing performance deteriorates

Engineering Contradiction:
Improvestructural rigidityVSAvoidsealing performance
Core Design Contradiction:
StrengthVSReliability

Solution Approach 1:

The sliding profile creates a dynamic connection that maintains structural rigidity while allowing controlled movement for sealing. The guide profile with groove pockets provides guided movement that preserves the sealing relationship between the outer shell part and the insulating web, preventing leakage while accommodating thermal expansion.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The insulating web acts as an intermediary element between the inner and outer shell parts. It provides both thermal insulation and a sealing function, while the sliding profile mechanism mediates the connection, allowing relative movement without compromising the sealing integrity. The guide profile and groove pockets work together as an intermediary mechanism to maintain sealing during movement.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Shape

If complex measures are taken to eliminate thermal stresses, then deformation is reduced, but device complexity increases

Engineering Contradiction:
Improvedeformation reductionVSAvoiddevice complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent applies segmentation by dividing the connection system into distinct functional elements: the sliding profile for movement, the guide profile for guidance, and the groove pockets for positioning. This segmentation allows each element to perform its specific function efficiently, reducing overall complexity while effectively eliminating thermal stress-induced deformation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent uses parameter changes by transforming the connection from rigid to movable through the sliding profile mechanism. This single parameter change (from fixed to sliding connection) achieves deformation reduction without requiring multiple complex measures, thereby maintaining simplicity in the overall device design.

Inventive Principle:
Principle #35Parameter changes

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

This configuration effectively eliminates thermal stress-induced deformation, ensures proper sealing, and provides a cost-effective and simple construction method by allowing for easy accommodation of fittings and adequate thermal insulation.

Implementation Method 1

occur due to the different degrees of thermal expansion of the inner and outer shell part stresses within the component

Methodology Applied
Scientific EffectThermal expansion: Thermal Expansion

Implementation Method 2

both are connected to one another by means of a frame construction via an insulating web

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP2990578B1Component for use in construction technology and building technology
Publication Date: 2020.04.22 SAPA BUILDING SYST
  • EP2990578B1 patent drawingFigure 1
  • EP2990578B1 patent drawingFigure 2
  • EP2990578B1 patent drawingFigure 3

AI summary

The component is intended for use in building technology and construction in the form of a door, window, panel, facade element, or the like. It is provided with an inner and an outer shell part (1, 2), the outer shell part (2) being floating and substantially parallel to the inner shell part (1), and both being connected to each other via an insulating web (3) and filled with a core (4) between them. The insulating web (3) is fixedly connected to only one of the two shell parts (1, 2) and held in place on the other shell part (1, 2) by a sliding profile (6). The insulating web (3) is formed in one piece and is provided with one or more receiving chambers (7) for hardware components (8), in particular the lock, corner brackets, T-connectors, and the like.