Speaker Grill Diffusion Plate with Slit Support for Sound Quality
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Solution Overview
Problem
Existing speaker grills with irregular outer surfaces and cloth coverings face challenges in maintaining desired design aesthetics while preventing sound quality deterioration due to support structures blocking sound-emitting holes.
Innovation Solution
A speaker grill design featuring a diffusion plate with a concave shape, a base, and support portions with slits that form a virtual surface to support the cloth body, allowing sound transmission while maintaining the designed shape and preventing sinking of the cloth body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a support portion is provided on the speaker grill to support the cloth body, then the desired design shape is achieved, but the sound emitting hole is blocked and sound quality deteriorates
Solution Approach 1:
The support portion is designed with multiple slits that allow sound to pass through while providing structural support for the cloth body. This porous structure enables the support portion to simultaneously maintain the desired design shape and prevent sound quality deterioration by allowing sound transmission.
Solution Approach 2:
The support portion is strategically positioned and designed with slits only in specific regions where cloth body support is needed, while maintaining sound transmission paths. The local quality of the support structure is optimized to provide cloth support where necessary while preserving acoustic properties in sound-critical areas.
2Adaptability or versatility
If the speaker grill has irregularities on the outer surface, then design versatility is enhanced, but the cloth body surface becomes irregular and design requirements are not met
Solution Approach 1:
The diffusion plate is designed with a concave shape that specifically addresses the irregularities on the speaker grill surface. This localized geometric modification creates a smooth reference surface for the cloth body while preserving the overall irregular design characteristics of the speaker grill, thus maintaining design versatility while ensuring cloth body surface regularity.
Solution Approach 2:
The diffusion plate employs a concave curved surface that conforms to the irregularities of the speaker grill. This curvature allows the cloth body to rest on a smooth, continuous surface rather than directly on irregularities, achieving desired surface regularity while maintaining the underlying design versatility.
Data Source
AI summary
A speaker grill includes a diffusion plate, a base, and a support portion. The diffusion plate forms an opening facing a speaker and is arranged on an outer side of the opening so as to form a concave shape in a sound-emitting direction of the speaker. The base supports the diffusion plate at an outer circumference thereof. The support portion is provided at a front surface of the diffusion plate in the sound-emitting direction, having a support surface that covers at least a portion of the front surface of the diffusion plate, and having a plurality of partition walls forming slits in the sound-emitting direction. The support surface forms a virtual surface that covers an outer surface of the base.