Hybrid Shelf Assembly for Motor Vehicle Speaker Mounting
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Solution Overview
Problem
Current rear speaker mounting shelf structures in motor vehicles rely on steel for structural strength but lack effective noise reduction and stiffness, necessitating improved designs that integrate both structural support and noise mitigation.
Innovation Solution
A hybrid shelf assembly featuring a metallic sheet body with polymeric reinforcement members integrated into peripheral flanges, which provide additional stiffness and noise reduction, while allowing for lightweight aluminum or steel construction and adaptable structural performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If steel material is used for speaker mounting shelf structure, then structural strength is improved, but noise reduction capability deteriorates
Solution Approach 1:
The patent applies composite materials by combining steel structural members with polymeric material coatings to create a hybrid shelf assembly. The steel provides structural strength while the polymeric coating provides noise reduction, thereby resolving the contradiction between strength and noise reduction capability.
Solution Approach 2:
The patent changes the physical parameters of the steel structural members by applying polymeric material coatings, which modifies the surface properties to reduce noise while maintaining the underlying steel's structural strength properties.
2Object-affected harmful factors
If polymeric material coating is applied to steel structural members, then noise reduction is improved, but structural strength deteriorates
Solution Approach 1:
The patent uses composite materials where the steel structural members provide the primary structural strength and the polymeric material coating provides noise reduction. The composite structure ensures that each material performs its optimal function without compromising the other.
Solution Approach 2:
The patent applies polymeric material coatings specifically to the surface of steel structural members where noise reduction is needed, while maintaining the steel's inherent strength properties in the bulk material. This local application of different material properties resolves the contradiction between noise reduction and structural strength.
3Strength
If steel material is used for shelf structure, then structural strength is improved, but weight increases
Solution Approach 1:
The patent employs composite materials combining steel and polymeric materials to create a shelf structure that achieves required structural strength with reduced weight compared to solid steel construction. The polymeric material provides structural contribution while being lighter than steel.
Solution Approach 2:
The patent changes the material composition parameters of the shelf structure by incorporating polymeric materials alongside steel, which modifies the overall density and weight of the assembly while maintaining necessary strength through the hybrid construction.
Data Source
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AI summary
A motor vehicle hybrid panel assembly includes a body formed of a metallic sheet having multiple apertures created therein. At least one reinforcement member of a polymeric material is integrally connected to the body proximate to and surrounding at least two of the multiple apertures. At least one connecting member of the polymeric material is integrally connected to each of the at least one reinforcement member, and extends away from the at least two of the multiple apertures on the body. At least one joining member of the polymeric material is integrally connected to the at least one reinforcement member and integrally connected to the body.