Grille Acoustic Device Varying Hole Depth Light Reflection
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Solution Overview
Problem
The boundary between through holes and non-through holes in acoustic device grilles is visually noticeable due to differences in brightness, and reducing through hole diameter to minimize this affects acoustic efficiency.
Innovation Solution
The grille design features through holes and non-through holes with varying depths, where non-through holes adjacent to through holes are deeper, reducing reflected light intensity and blurring the brightness difference, while maintaining acoustic efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the diameter of through holes is made smaller to reduce the visual boundary between through hole region and non-through hole region, then the exterior design is improved, but the acoustic efficiency and characteristics of the speaker are degraded
Solution Approach 1:
The invention applies different hole depths in different regions: non-through holes adjacent to the through hole region are made deeper than those in other areas. This local variation in depth creates a gradient that blends the boundary visually while preserving the through hole diameter needed for acoustic performance.
Solution Approach 2:
Instead of modifying the horizontal dimension (hole diameter) to solve the visual boundary problem, the invention transitions to modifying the vertical dimension (hole depth). By varying depth in the third dimension, the solution addresses the aesthetic issue without compromising the acoustic function that depends on horizontal dimensions.
2Shape
If non-through holes are formed with the same diameter as through holes to maintain exterior design, then the appearance is improved, but the boundary between regions becomes visually noticeable due to brightness difference
Solution Approach 1:
The invention changes the depth parameter of non-through holes strategically: deeper near the through hole region and shallower farther away. This parameter variation controls light reflection intensity, creating a gradient that reduces the visual contrast at the boundary while maintaining diameter consistency for appearance continuity.
3Shape
If non-through holes are made deeper to reduce reflected light and blur the boundary, then the exterior design is improved, but the manufacturing complexity increases
Solution Approach 1:
The non-through hole region is segmented into different zones with different depths: a first region adjacent to the through hole region with deeper holes, and a second region farther away with shallower holes. This segmentation allows controlled light reflection variation without requiring excessively complex manufacturing, as each zone can be formed with a uniform depth.
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 the exterior appearance by blurring the boundary between through and non-through hole regions, maintaining acoustic performance and strength without impairing the grille's functionality.
Implementation Method 1
the non-through holes reflect external light at the bottom
Data Source
AI summary
A grille and an acoustic device having a superior exterior design without impairment of acoustic efficiency are provided. The grille includes: a through hole-provided region having a plurality of through holes; and a non-through hole-provided region having a plurality of non-through holes each with a bottom, and provided adjacent to the through hole-provided region. The through holes and the non-through holes entirely provide a plurality of openings on an exterior surface of the grille. In the non-through hole-provided region, a depth of the non-through holes on a side close to the through hole-provided region is greater than a depth of the non-through holes on a side distant from the through hole-provided region.