Illumination Fan Axial Light Source Placement
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Solution Overview
Problem
Conventional illumination fans with light-emitting diodes and light guiding components occupy excessive space, leading to smaller fan blades and reduced heat dissipation efficiency.
Innovation Solution
The light source is positioned below the light guiding component, which is sandwiched between the housing sidewalls, allowing for a compact design that maintains sufficient fan space for larger blades, enhancing heat dissipation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light-emitting diodes and light guiding component are arranged on the fan frame, then visual effect is achieved, but the overall diameter of the illumination fan increases
Solution Approach 1:
The patent relocates the light source from the radial direction (on the fan frame) to the axial direction (below the light guiding component). This dimensional change allows the light-emitting diodes to be positioned in the accommodation space rather than occupying radial space, thereby reducing the overall diameter while maintaining the illumination function through the light guiding component.
2Length of stationary object
If smaller fan blade is used to reduce diameter, then specification is met, but heat dissipation efficiency deteriorates
Solution Approach 1:
By moving the light source assembly to the axial direction (another dimension), the patent frees up radial space that would otherwise be occupied by the light-emitting diodes and light guiding component. This allows the fan blade to be larger in radius while keeping the overall diameter within specification, thereby improving heat dissipation efficiency without compromising the visual effect.
3Illumination intensity
If light source is disposed on lateral side of light guiding component, then illumination function is achieved, but radial size becomes overly large
Solution Approach 1:
Instead of placing the light source laterally (radially) relative to the light guiding component, the patent inverts the arrangement by positioning the light source axially below the light guiding component. This inversion of the spatial relationship eliminates the need for lateral space, reducing the radial size while maintaining the illumination function through light transmission through the light guiding component.
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 arrangement prevents an overly large radial size, enabling a more compact illumination fan with improved heat dissipation efficiency by accommodating larger fan blades.
Implementation Method 1
A light source is disposed in the accommodation space and located below the light guiding component
Implementation Method 2
A light guiding component, such as an acrylic ring containing light diffusion powders, is disposed on the circumference of the fan frame to guide the light emitted by the light-emitting diodes, thereby achieving multi-directional illumination
Data Source
AI summary
An illumination fan includes a housing, a fan blade, a light guiding component and a light source. The housing defines a fan space and an accommodation space. The fan blade is disposed in the fan space. The light guiding component surrounds the fan blade, and at least part of the light guiding component is disposed in the accommodation space. The light source is disposed in the accommodation space and located below the light guiding component.