Annular LED Heat Sink Structure for Uniform Halo Brightness
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Solution Overview
Problem
Existing light-emitting heat-dissipating devices require a large number of light-emitting elements to achieve a visually appealing halo, increasing manufacturing costs and often result in uneven brightness due to inefficient light guiding.
Innovation Solution
A light-emitting heat-dissipating device with a slender light guiding portion and directly disposed light-emitting units, such as LEDs, operating between a cover and a base, allowing for efficient light distribution and minimizing the number of elements needed while maintaining structural simplicity and avoiding external forces that could damage the light-emitting annular set.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a plurality of light-emitting elements are arranged annularly on the heat-dissipating device to provide visual effect, then the halo effect is achieved, but the manufacturing cost increases due to the large number of light-emitting elements required
Solution Approach 1:
The patent introduces a light guiding frame as an intermediary component between the light-emitting elements and the external environment. This frame guides and distributes light from a reduced number of light-emitting elements arranged at its endpoints, enabling efficient light distribution around the heat-dissipating device without requiring numerous individual light-emitting elements positioned around the entire perimeter.
2Quantity of substance
If a small number of light-emitting elements operate with an annular light guiding frame, then manufacturing cost is reduced, but the brightness of the halo is unevenly distributed due to low efficiency of the light guiding process
Solution Approach 1:
The light guiding frame is designed with a substantially annular (curved) shape that matches the cylindrical geometry of the heat-dissipating device. This curved configuration enables efficient light propagation and distribution around the device, ensuring uniform halo brightness even when using only a small number of light-emitting elements positioned at the endpoints of the frame.
3Illumination intensity
If light-emitting elements are mounted on the heat-dissipating device for visual effect, then aesthetic appearance is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the light guiding frame with the heat-dissipating device structure itself, where the frame is formed as an integrated component of the device housing. This integration eliminates the need for separate mounting structures and complex assembly processes, reducing overall device complexity while maintaining the visual halo effect through strategic placement of minimal light-emitting elements.
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 enables uniform brightness distribution and reduced manufacturing costs by enhancing light guiding efficiency, allowing a few light-emitting elements to produce a sufficiently bright and even halo, while protecting the light-emitting annular set from external damage.
Implementation Method 1
The light-emitting units are light-emitting diodes
Implementation Method 2
The light guiding portion is slender. The at least a light-emitting unit is disposed on the light guiding portion
Data Source
AI summary
A light-emitting heat-dissipating device includes a base, a light-emitting annular set, a fan and a cover. The base has an annular frame and a pivotal connection portion. The light-emitting annular set is annularly disposed at the annular frame of the base. The fan is pivotally disposed at a pivotal connection portion of the base. The cover is disposed on the annular frame of the base. The light-emitting annular set is annularly disposed between the cover and the base such that the light-emitting annular ring is not subjected to any external force or weight and thereby not predisposed to damage. The light-emitting annular set enables a halo with uniformly-distributed brightness to be formed above the light-emitting heat-dissipating device.