Thermally Insulating Coupling Device for Sectional Door Frame
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Solution Overview
Problem
Existing sectional doors fail to achieve satisfactory thermal separation between the interior and exterior spaces due to thermal bridges formed by the holding devices in their frame arrangements.
Innovation Solution
The use of a thermally insulating coupling device made of plastic, which connects the holding device to both inner and outer profiles of the frame arrangement without direct contact, preventing heat transfer and ensuring stable coupling and locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a holding device made of metallic material is used to secure the filling to the frame arrangement, then structural stability and secure locking are improved, but thermal separation between interior and exterior deteriorates due to thermal bridges
Solution Approach 1:
A plastic coupling device is introduced as an intermediary between the metallic holding device and the frame profiles. This coupling device thermally insulates the holding device from the profiles, preventing thermal bridges while maintaining the structural stability provided by the metallic holding mechanism.
Solution Approach 2:
The frame arrangement uses a composite construction combining metallic profiles for structural strength, plastic connecting elements for thermal insulation, and metallic holding devices for secure locking. This multi-material approach resolves the contradiction between structural stability and thermal separation by assigning different materials to different functional requirements.
2Loss of energy
If thermally insulating connecting elements made of plastic are used to connect frame profiles, then thermal separation is improved, but structural stability may deteriorate
Solution Approach 1:
The frame arrangement combines metallic profiles that provide structural strength with plastic connecting elements that provide thermal insulation. The metallic profiles maintain the load-bearing capacity while the plastic connectors prevent thermal bridges, achieving both structural stability and thermal separation simultaneously.
3Reliability
If the holding device directly contacts both inner and outer profiles, then secure locking of the filling is improved, but thermal bridges are created reducing thermal separation
Solution Approach 1:
The plastic coupling device serves as a thermal intermediary that allows the metallic holding device to maintain direct contact with the filling for secure locking, while preventing direct thermal contact between the holding device and the aluminum profiles through its thermally insulating properties.
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 solution effectively enhances thermal separation between the interior and exterior while maintaining structural stability and preventing deformation, without excessive material usage.
Implementation Method 1
the holding device can be coupled to the connecting device made of thermally insulating material via the coupling device while avoiding simultaneous contact with both profiles of the frame arrangement
Data Source
Figure 1
Figure 2
Figure 3a~3d
AI summary
The frame assembly (10) has frame outer profile (20) and frame inner profile (40) of thermally insulating material that are connected in a perpendicular direction to the outside and inside, and are apart from each other. The connecting elements (80,100) are interconnected with the filling (50) facing the boundary surface (102) so that the positive connection of the filling and coupling portion (120) of the holding unit (60) is obtained.