LED Lens Tweeter Horn Integration for Ceiling Lighting Speaker
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing combined lighting and speaker devices face challenges in integrating LEDs efficiently, leading to excessive heating, reduced sound quality, and compatibility issues with tweeters, particularly when flush-mounted in ceiling installations.
Innovation Solution
A novel design featuring a tweeter horn integrated with an LED assembly, where the LED lens forms part of the tweeter horn, and a reflector system directs light efficiently, combined with a heat management system using a carrier to dissipate heat, allowing for high-quality sound and lighting in a compact form.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If High output LEDs are used to increase lumen output, then illumination intensity is improved, but heat generation increases and LED lifespan decreases
Solution Approach 1:
The patent combines the LED mounting surface with the tweeter horn structure into a single integrated component. The LED carrier forms part of the tweeter horn assembly, allowing heat dissipation through the horn structure while maintaining acoustic performance. This merging eliminates the need for separate heat sinking components and enables efficient thermal management alongside acoustic function.
Solution Approach 2:
The LED carrier serves multiple functions simultaneously: it mounts the high-output LEDs, dissipates heat through its thermally conductive structure, and forms part of the tweeter horn acoustic guide. This multi-functional design allows the same component to address illumination, thermal management, and acoustic directionality without requiring additional parts.
2Reliability
If a separate tweeter is added to improve sound quality, then acoustic performance is improved, but device complexity and integration difficulty increase
Solution Approach 1:
The LED assembly and tweeter horn are merged into a single integrated carrier structure. The LED carrier forms the tweeter horn, combining what would traditionally be separate components into one unified assembly. This reduces integration complexity while maintaining separate acoustic paths for the tweeter and main speaker.
Solution Approach 2:
The carrier structure performs multiple functions: it serves as the tweeter horn acoustic guide, provides mounting for high-output LEDs, and acts as a heat dissipation path. This multi-functionality reduces the total component count and simplifies the overall device architecture while improving sound quality through the addition of the tweeter.
3Illumination intensity
If LEDs are positioned to surround the tweeter, then lighting coverage is improved, but voice coil movement causes light flicker
Solution Approach 1:
Instead of positioning LEDs symmetrically around the tweeter voice coil, the patent positions the LED carrier radially outwardly of the tweeter, away from the voice coil movement path. This asymmetric positioning eliminates the flicker issue caused by voice coil motion while still providing effective lighting coverage through the lens system.
Solution Approach 2:
The tweeter horn structure acts as an intermediary between the LEDs and the surrounding environment. The LEDs are mounted on the horn carrier, and the horn structure itself serves as the mounting surface, positioning the LEDs at a safe distance from the voice coil while still allowing light to be directed effectively into the room.
4Reliability
If the device size is increased to accommodate better speaker and lighting components, then sound quality and illumination are improved, but compatibility with standard ceiling fittings decreases
Solution Approach 1:
The patent employs a nested arrangement where the tweeter is positioned within the LED assembly structure, and the LED carrier forms part of the tweeter horn. This nesting allows multiple functional components to occupy overlapping or concentric spaces, maximizing component density within a compact overall device volume that remains compatible with standard ceiling fittings.
Solution Approach 2:
The patent utilizes radial positioning of the LED assembly around the central tweeter axis, rather than only axial stacking. By arranging components in a radial configuration and using the lens to direct light forward, the design achieves efficient use of three-dimensional space, providing high-quality audio and lighting functions within a compact cylindrical form factor suitable for standard ceiling installations.
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 solution provides improved sound quality by separating LF and HF sound components and efficient lighting with reduced glare and flicker, while effectively managing heat to extend LED lifespan and maintain acoustic performance.
Implementation Method 1
At least part of the tweeter horn is provided by the forward surface of the lens
Implementation Method 2
a reflector system directs light efficiently
Implementation Method 3
a heat management system using a carrier to dissipate heat
Data Source
Figure 1
Figure 2
Figure 3a~3b
AI summary
A combined lighting and speaker device having a central longitudinal axis defining a forward and a rearward direction and a radially outward and a radially inward direction is provided. The device comprises a tweeter; a tweeter horn positioned radially outwardly of the tweeter; a speaker positioned rearward of the tweeter horn; and a light emitting diode, LED, assembly positioned radially outwardly of the tweeter. The LED assembly comprises one or more light emitting diodes, LEDs, and a lens having a forward surface. The tweeter horn has an inner edge in communication with an outer edge of the tweeter, so that the tweeter horn forms a guide to direct sound produced by the tweeter away from the speaker when in use. At least part of the tweeter horn is provided by the forward surface of the lens.