Rib-Guided Insulation Element for Irregular Vehicle Cavities
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Solution Overview
Problem
Existing insulation and reinforcement elements for motor vehicle structural components require individually tailored solutions for each cavity shape, leading to high development and manufacturing costs, especially for small vehicle series, and struggle with efficiently sealing and stabilizing irregularly shaped or narrow cavities.
Innovation Solution
A standardized insulating element with a sandwich-like design and ribs that guide the expansion of expandable material in a desired direction, allowing for efficient foam filling of cavities regardless of shape or size, and can be produced in large quantities to reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If custom-fit sealing and reinforcement elements are manufactured for each body shape and cavity, then sealing effectiveness and cavity reinforcement are improved, but development and manufacturing costs increase significantly
Solution Approach 1:
The patent applies universality by designing a standardized insulating element with expandable material that can be used across multiple body shapes and cavity types. Instead of manufacturing custom-fit elements for each specific application, the same standardized element with universal dimensions and expandable properties can adapt to various cavity geometries, thereby reducing development and manufacturing costs while maintaining sealing effectiveness.
2Ease of manufacture
If standardized insulating elements are used for multiple cavity types, then manufacturing costs and development costs are reduced, but the ability to properly seal irregularly shaped or narrow cavities deteriorates
Solution Approach 1:
The patent applies parameter changes by utilizing the expandable material's ability to change its physical parameters (volume, shape, density) after insertion. The standardized element is inserted in a compressed state and then expands in-situ to adapt to the specific cavity geometry, thereby achieving precise sealing in irregularly shaped or narrow cavities while maintaining the benefits of standardized manufacturing.
3Reliability
If expandable material is used to fill cavities, then sealing and insulation performance are improved, but uncontrolled expansion in undesired directions may occur
Solution Approach 1:
The patent applies preliminary action by pre-forming the insulating element with a specific geometry and orientation before insertion. The element is prepared in advance with the expandable material positioned and oriented correctly, so that upon insertion and activation, the expansion occurs in the desired direction to fill the cavity effectively without deviating to undesired areas.
Solution Approach 2:
The patent applies local quality by creating heterogeneous structures within the insulating element, such as varying the density, composition, or geometric features at different locations. This ensures that the expandable material expands preferentially in certain directions or regions, providing controlled expansion behavior that adapts to the specific cavity geometry while maintaining overall stability.
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 enables effective sealing, reinforcement, and noise reduction for a wide range of cavity shapes and sizes, reducing development and production costs while maintaining lightweight construction, and is applicable to both large and small gaps between structural elements and supports.
Implementation Method 1
expandable material is already directed in a desired direction during expansion. Ribs arranged between the walls further improve this directional effect.
Data Source
Figure 1
Figure 2~3
Figure 4a~4c
AI summary
An insulating element for insulating a structural element in a vehicle comprises a carrier which has a first wall and a second wall. A first rib and a second rib are arranged between the walls. The insulating element also comprises an expandable material which is arranged between the walls and on both sides of each rib. The insulating element also comprises a fastening element for fastening the insulating element in the structural element.