Thermochromic Fan Structure for Visual Temperature Indication

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Solution Overview

Problem

Conventional air-cooling systems in electronic equipment lack temperature detection capabilities, making it difficult to infer the current temperature of the equipment directly.

Innovation Solution

Incorporation of thermochromic portions in fan structures that change color according to temperature, providing real-time visual temperature indication through color changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If conventional air-cooling systems are used without additional temperature detection components, then the device complexity is reduced and manufacturing cost is lowered, but the ability to detect and indicate temperature is lost

Engineering Contradiction:
Improvetemperature informationVSAvoidsystem complexity
Core Design Contradiction:
Loss of informationVSDevice complexity

Solution Approach 1:

The patent combines the cooling function and temperature indication function into a single integrated fan structure. The thermochromic portions are incorporated directly into the fan blades or housing, merging the temperature detection capability with the existing cooling component, thereby eliminating the need for separate temperature sensors and display systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent utilizes thermochromic materials that change color in response to temperature variations. These color-changing portions are integrated into the fan structure, providing visual temperature indication through color transitions without requiring additional electronic sensors, displays, or power consumption for illumination.

Inventive Principle:
Principle #32Color changes

2Measurement precision

If multiple thermochromic portions with different color change temperatures are used, then temperature measurement precision is improved, but the device complexity increases

Engineering Contradiction:
Improvetemperature indication precisionVSAvoidfan structure complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent divides the temperature indication function into multiple segments by using different thermochromic portions with different color change temperatures. Each thermochromic portion is responsible for indicating a specific temperature range, and their collective response provides comprehensive temperature information across different ranges.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the fan structure are assigned different thermochromic properties. Specific areas contain thermochromic materials with different color change temperatures, allowing each local region to respond to different temperature thresholds and provide differentiated temperature information.

Inventive Principle:
Principle #3Local quality

3Reliability

If thermochromic portions are added to the fan structure, then temperature detection capability is improved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improvetemperature indication reliabilityVSAvoidthermochromic portion integration precision
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The patent integrates thermochromic materials into the fan structure by incorporating them as composite materials during the manufacturing process. The thermochromic particles or layers are mixed into or applied onto the fan blade material, creating a composite structure that maintains the mechanical properties of the fan while adding temperature-sensitive color-changing functionality.

Inventive Principle:
Principle #40Composite materials

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 users to intuitively perceive the approximate temperature of the fan structure by observing color variations, enhancing user reassurance and temperature perception.

Implementation Method 1

a fan structure includes a thermochromic portion, i.e., one or more portions that change color according to temperature

Methodology Applied
Scientific EffectThermochromism: Thermochromism

Data Source

PatentUS20260092604A1Fan structure
Publication Date: 2026.04.02 COOLER MASTER CO LTD
  • US20260092604A1 patent drawing
  • US20260092604A1 patent drawing

AI summary

According to some aspects of the present disclosure, a fan structure includes a support, a fan mounted on the support, and a thermochromic material disposed on or in the support or the fan, and including multiple portions, each portion having a respective color-transition temperature at which the respective portion changes between a respective first color state and a respective second color state, the color-transition temperatures of the multiple portions being different from each other.