Universal Fan Securing Device with Adjustable Locking Arms

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Solution Overview

Problem

Conventional fan securing devices are unable to accommodate cooling fans of different dimensions, requiring auxiliary securing devices and limiting their installation on electronic device boards where airflow is parallel to the board surface.

Innovation Solution

A fan securing device comprising a first holder and a second holder with adjustable locking units and shock absorbing members, allowing for secure clamping of cooling fans between the holders without bolts, accommodating various thicknesses and facilitating easy assembly and connection of multiple fan assemblies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a conventional fan securing device is used, then the cooling fan can be secured to a support, but the device cannot accommodate cooling fans of different dimensions

Engineering Contradiction:
Improveadaptability to different fan dimensionsVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The holder is designed with a universal structure that can accommodate cooling fans of different dimensions. The holding frame includes adjustable locking units and connecting arms with multiple locking positions, allowing the same holder to securely hold fans with various thicknesses and sizes, eliminating the need for multiple specialized securing devices

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The locking units are designed to be adjustable and movable rather than fixed. The connecting arms can extend and retract, and the locking units can be positioned at different locations along the holding frame, enabling dynamic adaptation to different fan dimensions while maintaining a relatively simple overall device structure

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If positioning holes are used for securing the cooling fan, then the fan can be secured to a support, but the airflow direction must be parallel to the positioning holes which limits installation on board surfaces

Engineering Contradiction:
Improveinstallation flexibility on board surfacesVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The holder introduces a new dimensional layer between the cooling fan and the board surface. Instead of directly securing the fan to the board through positioning holes, the holder provides an intermediate mounting platform that can be attached to the board, allowing the fan to be positioned at various orientations and distances from the board surface, thereby enabling installation in configurations where airflow is not parallel to the board

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

3Adaptability or versatility

If multiple cooling fans with different thicknesses are secured, then various fan specifications can be accommodated, but conventional securing devices require multiple different devices

Engineering Contradiction:
Improvecompatibility with various fan specificationsVSAvoidnumber of securing devices
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

A single holder design with adjustable locking units can accommodate multiple fan specifications including different thicknesses (15mm, 20mm, 24mm, 28mm) and sizes. The connecting arms can be adjusted to match different fan dimensions, eliminating the need to stock and use multiple different securing devices for different fan types

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The holder is segmented into adjustable components including locking units that can be independently positioned and connecting arms that can be extended or retracted. This segmentation allows the same holder structure to be configured for different fan specifications without requiring entirely different devices

Inventive Principle:
Principle #1Segmentation

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 secure and efficient installation of cooling fans on electronic device boards with different thicknesses, reduces resonance effects from vibrations, simplifies manufacturing, and allows for easy assembly and connection of multiple fan assemblies.

Implementation Method 1

reduces resonance effects from vibrations

Methodology Applied
Scientific EffectResonance: Resonance

Implementation Method 2

reduces resonance effects from vibrations

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS9565785B2Fan securing device and fan assembly having the same
Publication Date: 2017.02.07 WISTRON CORP
  • US9565785B2 patent drawing
  • US9565785B2 patent drawing
  • US9565785B2 patent drawing

AI summary

A fan securing device includes first and second holders. The first holder includes a first holding frame that has two holding slots located in opposite sides of the first holding frame, and two first locking units respectively formed adjacent to the holding slots. The second holder includes a second holding frame that has two connecting arms located on opposite sides of the second holding frame and extending respectively into the holding slots. Each connecting arm has a plurality of second locking units. Each first locking unit engages a selected one of the second locking units of a respective one of the connecting arms so as to clamp at least one cooling fan between the first and second surfaces.