Seamless Speaker Enclosure with Resilient Damping Layer
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Solution Overview
Problem
Conventional speaker enclosures are heavy and difficult to transport due to their weight and bulk, and they often suffer from vibrations at seams and joints, which affect sound quality by causing distortion and unwanted frequency magnification, while existing solutions either improve weight and sound performance at the cost of high manufacturing complexity or fail to address vibration issues effectively.
Innovation Solution
A speaker enclosure design featuring a seamless construction with a resilient material laminated on the interior layer, a honeycomb or corrugated middle layer, and metal or carbon fiber outer layers, with slit joints and grooves for folding, which reduces vibrations and manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional wood material speaker enclosures are used, then sound performance is achieved, but weight and bulk increase making transportation difficult
Solution Approach 1:
The patent employs a composite panel structure consisting of an outer skin layer, middle sound absorbing layer, and inner layer bonded together. This composite construction achieves both lightweight properties and structural strength, resolving the contradiction between weight reduction and operational ease.
Solution Approach 2:
The outer skin is formed from flexible materials that can be molded into seamless enclosures. This allows the creation of lightweight yet durable speaker enclosures that are easy to transport while maintaining structural integrity.
2Ease of manufacture
If seams and joints are used in speaker enclosure construction, then manufacturing is simplified, but vibrations are induced at joints reducing sound performance
Solution Approach 1:
The patent merges multiple layers (outer skin, middle sound absorbing layer, inner layer) into a single integrated panel structure that is substantially seamless. This eliminates joints and seams that would otherwise cause vibrations and degrade sound quality, while the layered composite structure remains manufacturable.
Solution Approach 2:
The bonded layered composite structure provides both ease of manufacture through modular layering and high reliability by eliminating seams. Each layer serves a specific function while collectively forming a seamless vibration-free enclosure.
3Reliability
If seamless rigid outer skin with multiple layers is used, then vibrations are reduced and sound quality improves, but manufacturing complexity and cost increase
Solution Approach 1:
The patent segments the enclosure into distinct functional layers (outer skin, middle sound absorbing layer, inner layer) that can be manufactured separately and then bonded together. This segmentation simplifies the manufacturing process while maintaining the seamless vibration-free structure required for high sound quality.
Solution Approach 2:
The middle sound absorbing layer uses porous or honeycomb materials that provide vibration damping and sound absorption. These materials are relatively easy to manufacture and bond to other layers, reducing overall manufacturing complexity while improving sound quality.
4Reliability
If internal standing sound waves are prevented using panels, then sound distortion is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent combines the functions of multiple panels into a single integrated seamless enclosure structure. This prevents internal standing sound waves and reduces sound distortion while eliminating the complexity of assembling multiple separate panels.
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 design results in a durable, lightweight enclosure that minimizes sound distortion and enhances sound quality by reducing high-frequency pain and emphasizing mid-frequencies, while being easier and less expensive to manufacture.
Implementation Method 1
a resilient material is laminated on the first layer which faces the interior volume of the enclosure
Implementation Method 2
resilient material is laminated on the first layer which faces the interior volume of the enclosure
Implementation Method 3
a honeycomb or corrugated middle layer
Implementation Method 4
the plurality of side walls are formed from a single panel for folding to form the main body of the enclosure
Implementation Method 5
A speaker enclosure design featuring a seamless construction with a resilient material laminated on the interior layer
Data Source
Figure 1
Figure 2a~2c
Figure 3a~3d
AI summary
A loud speaker enclosure and a method of forming the loudspeaker enclosure comprising the following steps: combining a first layer of a sheet material, a middle layer of a cored configuration and a second layer of the sheet material by using adhesive to form a panel; laminating a sheet of resilient material on the panel; forming a plurality of grooves extending partially through the depth of the panel, each of the grooves extending transverse to the panel such that the panel can be folded at the groove to form an enclosed main body; bending the panel at the location of the grooves to form the enclosed main body; capping the enclosed main body with a top wall and a bottom wall with separate panels wherein the main body, the top wall and the bottom wall defines the interior volume of the enclosure.