Vehicle Panel Foam Insulation Merging Substrate and Acoustic Layers
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Solution Overview
Problem
Existing vehicle panel designs require additional manufacturing steps to install sound insulation materials, which complicates the production process.
Innovation Solution
A vehicle panel design that integrates a skin layer, a substrate layer, and foam material, where the foam forms a unitary member by being injected between the skin and substrate layers and also overlying the substrate, with retaining members to secure it, allowing for simultaneous formation of both foam layers in a single step.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If sound insulation material is added to vehicle panel, then noise blocking performance is improved, but manufacturing process complexity increases
Solution Approach 1:
The foam material serves dual purposes: it acts as both the structural substrate layer and the sound insulation material. By integrating these two functions into a single component, the manufacturing process is simplified while maintaining effective noise blocking performance.
Solution Approach 2:
The foam material performs multiple functions simultaneously: it provides structural support as the substrate layer and delivers acoustic insulation properties. This multi-functionality eliminates the need for separate sound insulation material installation steps.
2Object-affected harmful factors
If separate sound insulation material is installed, then acoustic barrier performance is improved, but manufacturing time increases
Solution Approach 1:
The substrate layer and sound insulation material are merged into a single foam component, allowing both to be formed simultaneously in one manufacturing operation rather than requiring sequential installation steps.
Solution Approach 2:
The foam material is pre-formed with the required acoustic insulation properties integrated into its structure before installation, eliminating the need for subsequent sound insulation material installation steps.
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 design effectively blocks noise and vibrations from entering the vehicle cabin without adding extra manufacturing steps, enhancing sound insulation performance while simplifying the manufacturing process.
Implementation Method 1
The foam material includes a first foam layer disposed in the space between the skin layer and the substrate layer and a second foam layer overlying the outbound facing side of the substrate layer
Implementation Method 2
The foam material includes a first foam layer disposed in the space between the skin layer and the substrate layer and a second foam layer overlying the outbound facing side of the substrate layer
Data Source
AI summary
A vehicle panel basically includes a skin layer, a substrate layer and a foam material. The skin layer includes an inbound facing side and an outbound facing side. The substrate layer includes an inbound facing side and an outbound facing side, with the inbound facing side of the substrate layer overlying and spaced from the outbound facing side of the skin layer to form a space therebetween. The foam material includes a first foam layer disposed in the space between the skin layer and the substrate layer and a second foam layer overlying the outbound facing side of the substrate layer, with the first and second foam layers being interconnected as a unitary member through at least one opening in the substrate layer.