Sound isolating ventilation panels and methods for manufacturing same
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Solution Overview
Problem
Existing sound isolating ventilation panels face challenges such as complex manufacturability, high cost, limited sound isolation and airflow capacity, weight issues, and poor surface finish opportunities due to thick skins and intricate component assembly requirements.
Innovation Solution
The design incorporates a core assembly with horizontal channels, cartridges with hollow centers and air/sound resonator apertures, and a frame with a top and bottom rail, allowing for Z-shaped air channels and resonators, using fewer components and enabling easier assembly with dust-blocking inserts, and constructed from corrugated fiberboard for improved sound absorption and structural support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional sound isolating ventilation panels use thick skins and intricate component assembly, then sound isolation performance is improved, but manufacturing complexity increases and cost increases
Solution Approach 1:
The panel is divided into modular components including a core assembly with integrated Z-shaped channels, cartridges with resonators, and skin panels. These modules can be manufactured separately and assembled systematically, reducing overall complexity while maintaining sound isolation performance through the integrated design of each module.
Solution Approach 2:
The panel uses composite construction combining rigid skin panels, corrugated core assemblies for structural support, and sound-absorptive materials within the Z-shaped channels and cartridges. This composite approach achieves effective sound isolation across different frequency ranges without requiring uniformly thick skins throughout the entire panel structure.
2Reliability
If traditional panels use thick skins to improve sound isolation, then sound transmission loss increases, but weight increases and surface finish opportunities are reduced
Solution Approach 1:
Different regions of the panel have different thicknesses and material properties optimized for their specific functions. The skin panels can be thinner where structurally sufficient, while the core assembly and cartridges provide localized sound isolation enhancement. This allows weight reduction overall while maintaining effective sound transmission loss through strategic placement of thicker, denser materials only where needed.
Solution Approach 2:
The panel employs composite construction combining lighter skin panels with dense sound-absorptive materials and rigid corrugated core structures. This achieves effective sound isolation without requiring uniformly thick skins throughout, thereby reducing overall panel weight while maintaining sound transmission loss performance.
3Reliability
If traditional panels use intricate component assembly, then sound isolation performance is improved, but manufacturing cost increases and assembly efficiency decreases
Solution Approach 1:
The panel is segmented into standardized modules (core assembly with Z-channels, cartridges with resonators, skin panels) that can be manufactured independently using optimized processes for each component type. This modularity enables parallel manufacturing and simplifies assembly to systematic placement of pre-fabricated modules, improving both quality control and assembly efficiency.
Solution Approach 2:
Multiple functions are merged into integrated components: the Z-shaped channels simultaneously provide airflow pathways and sound absorption, the cartridges combine resonators for sound isolation with structural support, and the core assembly provides both structural rigidity and sound isolation. This functional integration reduces the number of separate components and assembly steps while maintaining effective sound isolation performance.
4Ease of manufacture
If traditional panels use fewer components, then manufacturing is simplified, but sound isolation performance and airflow capacity are reduced
Solution Approach 1:
The panel is segmented into standardized modules that can be manufactured using simple, optimized processes for each component type. This modularity enables efficient manufacturing of individual modules while the overall panel achieves effective sound isolation through the systematic arrangement and integration of these modules, balancing manufacturing simplicity with performance requirements.
Solution Approach 2:
The integrated Z-shaped channels and cartridge assemblies serve multiple functions simultaneously: providing airflow pathways, absorbing sound across different frequency ranges, and offering structural support. This multi-functionality allows the panel to achieve effective sound isolation and airflow capacity with fewer components compared to traditional designs that require separate elements for each function.
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 enhances sound isolation and airflow capacity while simplifying manufacturing, reducing weight, and allowing for better surface finishes, addressing the limitations of previous panels by using fewer components and improving assembly efficiency.
Implementation Method 1
The transmission loss can be further increased by adding a sound-absorptive material between the two panels. This further decouples the two panels by attenuating waves traveling between the panels and reducing standing waves.
Implementation Method 2
The sound resonator side apertures and the hollow sides partially define a plurality of resonators
Data Source
AI summary
A sound isolating ventilation panel is provided. The panel includes: a core assembly having a plurality of horizontal channels; a pair of cartridges having hollow centers and flanking both sides of the core assembly; and a pair of hollow sides flanking the pair of cartridges. Each of the cartridges has a proximally facing side having a plurality of air channel side apertures and a distally facing side comprising a plurality of sound resonator side apertures. A vertically oriented ventilation groove is formed through a front face of a first one of the cartridges and a vertically oriented ventilation groove is formed through a back face of the second one of the cartridges. The ventilation grooves, the hollow centers, the air channel side apertures and the horizontal channels together partially define Z-shaped air channels. The sound resonator side apertures and the hollow sides partially define a plurality of resonators.