Booth Airflow Passage with Variable Openings for Sound Insulation
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Solution Overview
Problem
Existing booths lack effective sound insulation and absorption mechanisms, particularly for human voices, and do not efficiently manage airflow and temperature regulation, leading to potential noise leakage and discomfort.
Innovation Solution
A booth design featuring wall plates with integrated sound-absorbing and insulating properties, combined with a communication portion that includes area changing portions with varying cross-sectional areas and reflection surfaces to attenuate sound and facilitate airflow, maintaining a quiet environment without the need for additional air conditioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a booth has a simple box-shaped structure without additional components, then the device complexity is low and ease of manufacture is high, but sound insulation and sound absorption performance are insufficient
Solution Approach 1:
The communication portion is divided into multiple area portions (first, second, third portions) with different cross-sectional areas arranged along the airflow direction. This segmentation creates varying acoustic impedance that attenuates sound transmission while maintaining a relatively simple overall booth structure.
Solution Approach 2:
The area changing portion is integrated within the communication portion, which itself is connected to the booth body. This nested arrangement embeds the sound attenuation functionality within the existing communication structure, improving noise insulation without significantly increasing overall device complexity.
2Object-affected harmful factors
If the communication portion has a uniform cross-sectional area, then the structure is simple and ease of manufacture is high, but sound attenuation performance is insufficient
Solution Approach 1:
Different sections of the communication portion have different cross-sectional areas tailored to their specific acoustic functions. The first area portion has a smaller area for initial sound attenuation, the second has a larger area for airflow, and the third has a reduced area for further sound insulation. This local differentiation optimizes sound attenuation while keeping each individual section manufacturable.
Solution Approach 2:
The cross-sectional area parameter of the communication portion is varied along the airflow direction to create acoustic impedance changes. This parameter modification enables effective sound attenuation without requiring complex materials or structures, balancing manufacturing ease with acoustic performance.
3Object-affected harmful factors
If additional sound insulation components are added to the booth, then sound insulation performance is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The sound attenuation functionality is merged with the communication portion that already exists for airflow and temperature regulation. By combining acoustic insulation with the communication function, the patent avoids adding separate sound insulation components, thereby improving noise insulation while maintaining simple manufacturing and assembly processes.
Solution Approach 2:
The communication portion serves multiple functions: it enables airflow for temperature regulation and simultaneously provides sound attenuation through its area changing structure. This multi-functionality eliminates the need for separate dedicated sound insulation components, reducing overall device complexity while improving acoustic performance.
4Object-affected harmful factors
If the communication portion restricts airflow to improve sound insulation, then noise transmission is reduced, but temperature regulation and comfort are compromised
Solution Approach 1:
The communication portion allows dynamic airflow through its open structure while the area changing portions create acoustic impedance. The airflow path remains unobstructed for thermal comfort, but the varying cross-sectional areas dynamically attenuate different frequency components of sound, simultaneously achieving both temperature regulation and noise insulation.
Solution Approach 2:
The area changing portions act as acoustic intermediaries that allow airflow to pass through while attenuating sound transmission. These intermediate structures with varying cross-sectional areas provide a pathway for thermal exchange while creating acoustic impedance barriers, mediating between the conflicting requirements of airflow and sound insulation.
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 booth effectively reduces noise transmission in and out, maintains a comfortable temperature, and prevents sound leakage during conversations, creating a quiet and comfortable space for work or relaxation.
Implementation Method 1
a communication portion connected to either the ceiling plate or an upper part of one of the wall plates and through which air flows between the internal space and an outside of the booth. The communication portion includes a plurality of area portions arranged along an air flow direction and each having an opening through which the air flows. The area portions include at least first, second, and third portions in this order from the outside of the booth towards the internal space. A first area of the opening of the first portion along a surface perpendicular to the air flow direction is smaller than a second area of the opening of the second portion along the surface. A third area of the opening of the third portion along the surface is smaller than the second area.
Implementation Method 2
one or more wall plates surrounding an internal space
Data Source
AI summary
A booth includes one or more wall plates surrounding an internal space, a ceiling plate connected to the plates and above the space, and a communication portion connected to either the ceiling plate or an upper part of a wall plate and through which air flows. The communication portion includes area portions arranged along an air flow direction and each having an opening through which the air flows, the area portions including first, second, and third portions in this order from the outside of the booth towards the internal space, and a first area of the opening of the first portion along a surface perpendicular to the air flow direction is smaller than a second area of the opening of the second portion along the surface, and a third area of the opening of the third portion along the surface is smaller than the second area.