Sound-proofing structure and sound-proofing system
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Solution Overview
Problem
Conventional soundproof materials face challenges in effectively absorbing low-frequency sounds, requiring large sizes and heavy weights, and struggle to adjust soundproofing frequencies easily due to fixed parameters like film thickness and hole diameters, which limits their applicability in varying noise environments.
Innovation Solution
A soundproof structure comprising two or more units with sound absorbing members, such as films or plates, arranged close to each other with a controlled distance to shift resonance frequencies to the low-frequency side, allowing for adjustable soundproofing by adjusting the distance between the units, and a system that measures noise frequencies to automatically adjust the unit positions for optimal sound insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sound absorbing materials are used for low frequency soundproofing, then sound absorption effectiveness is improved, but the size and weight of the soundproof structure increase significantly
Solution Approach 1:
The soundproof structure is divided into multiple soundproof units, each containing a frame with an opening portion and a sound absorbing member. By segmenting the structure into discrete units that can be arranged in arrays, the patent achieves effective low-frequency sound absorption without requiring a single large, heavy mass of conventional soundproofing material.
Solution Approach 2:
The sound absorbing members are designed as thin films or plates that can vibrate in response to sound waves. These flexible thin structures replace traditional thick, heavy soundproofing materials, achieving low-frequency sound absorption through controlled vibration and resonance at minimal weight and thickness.
2Ease of manufacture
If conventional soundproof materials with fixed parameters are used, then manufacturing simplicity is improved, but adaptability to different noise environments deteriorates
Solution Approach 1:
The sound absorbing members are designed as movable or adjustable components within the soundproof units. The distance between adjacent sound absorbing members can be modified to change the resonance frequency and sound absorption characteristics, allowing the same structure to adapt to different noise environments without requiring complete redesign or manufacturing of new components.
Solution Approach 2:
The patent enables adjustment of key parameters such as the distance between sound absorbing members, which directly affects the resonance frequency and sound absorption profile. By allowing parameter changes in the existing structure, the system can be tuned to match different noise frequencies and environmental requirements while maintaining manufacturing simplicity.
3Reliability
If sound absorbing members are arranged close to each other for low frequency soundproofing, then soundproofing effectiveness at low frequencies is improved, but the complexity of the structure increases
Solution Approach 1:
The soundproof units are designed as standardized, modular components that can be arranged in various configurations to address different soundproofing requirements. Each unit serves multiple functions: providing structural support, housing the sound absorbing member, and enabling adjustable spacing. This universality reduces overall system complexity compared to custom-designed non-modular structures.
Solution Approach 2:
The sound absorbing members are positioned within frames that are part of the soundproof unit structure. The nested arrangement of components (sound absorbing member within frame, frames arranged in arrays) creates a compact, organized structure that minimizes spatial requirements and simplifies installation while maintaining the close spacing necessary for low-frequency soundproofing.
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
Enables efficient sound insulation on the low-frequency side with a compact and lightweight design, allowing for easy frequency adjustments to match changing noise environments, thereby improving soundproofing effectiveness and adaptability.
Implementation Method 1
a sound absorbing member 16 attached to the opening portion 13a of the frame 14a... the sound absorbing members 16a and 16b are spaced apart from each other by a predetermined distance
Implementation Method 2
the resonance frequency is shifted to the low frequency side by arranging the surfaces of the sound absorbing members 16a and 16b close to each other
Data Source
Figure 1~2
Figure 3~4
Figure 5~5A
AI summary
There is provided a soundproof structure having two or more soundproof units. Each soundproof unit has a frame having an opening portion and a sound absorbing member attached to the opening portion of the frame. Two adjacent soundproof units are disposed such that at least parts of the sound absorbing members face each other. The sound absorbing members at least parts of which face each other are spaced apart from each other. An average distance between the sound absorbing members at least parts of which face each other is less than 20 mm. Therefore, it is possible to provide a soundproof structure and a soundproof system that can soundproof low frequency side sound with a simple configuration, is small and lightweight, and can easily change its frequency characteristics.