Light-Emitting Fan Assembly With Multi-Angle Light Guides

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Solution Overview

Problem

Existing LED cooling fans face challenges in providing multiple light radiation angles and aesthetics without increasing footprint, and assembly and disassembly are inconvenient due to the need for tools and multiple steps.

Innovation Solution

A light emitting fan design featuring a first and second light guide with multiple emitting surfaces, a chassis, blades, and a fastening assemblage that allows easy assembly and disassembly without tools, using snap-fit joints and quick release mechanisms.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If traditional fastening methods are used to assemble cooling fans, then structural stability is ensured, but assembly and disassembly become complex requiring tools and multiple steps

Engineering Contradiction:
Improveassembly convenienceVSAvoidassembly steps
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The fan assembly is divided into separate modular components (housing, light guide, LED module, fan blade) that can be independently assembled and disassembled. Each component has dedicated attachment features that enable tool-free assembly while maintaining structural integrity during operation.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fan components incorporate self-aligning and self-securing features such as snap-fit joints, magnetic attachments, and interlocking geometries that enable users to assemble and disassemble the fan without requiring external tools or complex procedures. The structure serves its own assembly needs through built-in mechanical features.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If multiple light radiation angles are implemented, then aesthetic versatility is improved, but device footprint increases

Engineering Contradiction:
Improvelight radiation anglesVSAvoidfan footprint
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

Multiple light guide elements with different emission angles are nested within the existing fan housing structure. The light guides are positioned concentrically or adjacently to the fan blade axis, allowing multiple radiation angles to be achieved without increasing the overall fan footprint. The nested arrangement enables compact multi-angle lighting while maintaining the original fan size.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

Instead of increasing the fan's two-dimensional footprint to accommodate multiple light angles, the design utilizes the third dimension (radial depth and axial positioning) to arrange light guides at different angles. Light sources are positioned at various radial distances and angles relative to the fan axis, creating multiple radiation directions within the existing footprint envelope.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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

Enables easy assembly and disassembly of LED cooling fans, providing diverse light radiation angles and aesthetics while minimizing the need for tools and steps, enhancing light intensity and reducing assembly time.

Implementation Method 1

A light emitting fan includes a first light guide, light source component, chassis, second light guide

Methodology Applied
Scientific EffectLight guidance: Waveguide (optics)

Implementation Method 2

LED-colored cooling fans are a type of cooling fan used in electronic systems such as personal computers. LED stands for light-emitting diode

Methodology Applied
Scientific EffectLight emission: Light Emitting Diode

Data Source

PatentUS12467475B2Light emitting fan
Publication Date: 2025.11.11 PURPLE CLOUD DEV PTE LTD
  • US12467475B2 patent drawing
  • US12467475B2 patent drawing
  • US12467475B2 patent drawing

AI summary

A light emitting fan including a first light guide, light source component, chassis, second light guide, plurality of blades rotatably mounted to the chassis, cover, and at least one fastening assemblage is provided. The first light guide has a plurality of different first light emitting surfaces. The second light guide has a plurality of different second light emitting surfaces. The at least one fastening assemblage comprises a first cavity structure, a second cavity structure, and a pair of arms. The first cavity structure is integrated with the cover, the second cavity structure is integrated with the chassis, and the pair of arms is integrated with the first light guide. The at least one fastening assemblage removably interlocks the cover and light source component with the first light guide and removably interlocks the chassis and second light guide with the first light guide.