L-Shaped Ceiling Speaker with Spring-Clamped Diffuser Mount
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Solution Overview
Problem
Existing speaker systems that support loudspeakers directly on ceiling tiles often cause deformation and failure of the tiles due to their weight, necessitating a lightweight solution that can be mounted without damaging the tiles.
Innovation Solution
A lightweight L-shaped tubular plastic housing for a ceiling speaker that is compatible with sound diffusers and directors, featuring a releasable design with coil springs for secure attachment to ceiling tiles without excessive weight or deformation, allowing for easy installation and minimal headroom.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional speaker system is mounted directly on ceiling tiles, then the speaker can be installed, but the ceiling tiles deform and fail due to the weight
Solution Approach 1:
The speaker system is divided into separate components: a grid-mounted support structure and a lightweight speaker enclosure. The support structure segments the load-bearing function from the speaker housing, allowing the grid to support the weight while the speaker enclosure remains lightweight and non-deforming to the tiles.
Solution Approach 2:
The speaker enclosure parameters are changed to reduce weight - using thin-walled tubular construction with specific dimensional parameters (e.g., 1.5-2.0 inch outer diameter, 0.035-0.065 inch wall thickness) that maintain structural integrity while minimizing mass to prevent tile deformation.
2Object-affected harmful factors
If a lightweight speaker enclosure is used, then ceiling tile deformation is prevented, but the speaker may not be securely mounted
Solution Approach 1:
The mounting system is segmented into a grid-supported framework and a lightweight speaker enclosure. The support structure provides secure mounting to the grid while the lightweight enclosure prevents tile damage, with each segment optimized for its specific function.
Solution Approach 2:
The grid-mounted support structure acts as an intermediary between the ceiling grid and the lightweight speaker enclosure. This intermediary provides the secure mounting capability that the lightweight enclosure alone cannot provide, while the enclosure itself remains lightweight enough to prevent tile deformation.
3Length of moving object
If a compact L-shaped housing is used, then headroom requirements are minimized, but manufacturing and assembly complexity increases
Solution Approach 1:
The L-shaped housing uses curved tubular sections instead of sharp angles, allowing the encoder shaft to follow a smooth curved path from the potentiometer to the wiper. This curvature simplifies the internal routing complexity while maintaining the compact form factor that minimizes headroom requirements.
Solution Approach 2:
The encoder shaft is routed through a third dimension by curving it along the tubular housing walls rather than using planar routing. This dimensional approach to routing reduces the footprint and headroom requirements while managing the complexity of connecting components in a compact L-shaped structure.
Data Source
AI summary
A small, lightweight ceiling speaker assembly in a lightweight plastic tubular L-shaped housing with an inclined rear end closed by an electronics connection panel. The tubular L-shaped housing is assembled from right and left L-shaped halves and encloses a speaker, a multi-tap transformer, and control electronics. Selection of the transformer tap, zone selection, and configuration controls is accomplished manually on the electronics connection panel. Analog ANALOG IN and ANALOG OUT jacks are also located on the electronics connection panel. Spring-biased feet engage the top surface of a ceiling tile or panel to clamp the L-shaped strategically hidden speaker system against an annular flange of a releasably attachable sound diffuser or director.