Fan Structure with Standoffs and Hooks for Easy Assembly

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Solution Overview

Problem

Conventional fan structures for electronic devices are difficult to assemble and disassemble without screws, and occupy too much space due to their design, making it challenging to accommodate more electronic components in compact devices.

Innovation Solution

A fan structure that uses installation standoffs with positioning slots and a fixing frame with positioning hooks, along with fastening components and shock-absorbing components, to securely attach and detach the fan from the substrate without screws, allowing for easy assembly and disassembly, and optimizing space usage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional screw-based fan structures are used, then the fan is securely fixed on the motherboard, but it becomes difficult for users to detach the fan structure from the electronic device

Engineering Contradiction:
ImproveEase of assembly and disassemblyVSAvoidSecure fixation
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The fan structure is divided into separate components: a fan assembly and a mounting assembly. The mounting assembly includes a mounting plate with multiple mounting holes and separate mounting pieces that can be independently attached to the motherboard and engaged with the fan assembly, enabling easy detachment while maintaining secure fixation during operation

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Mounting pieces serve as intermediary elements between the motherboard and the fan assembly. These mounting pieces have first mounting portions that attach to the motherboard and second mounting portions that engage with the fan assembly, providing a reliable connection that is easier to detach than direct screw fixation

Inventive Principle:
Principle #24Intermediary (Mediator)

2Volume of moving object

If the electronic device casing is made smaller to achieve slim and light design, then the device becomes more compact, but less mechanical space is reserved for disposing the fan structure

Engineering Contradiction:
ImproveDevice compactnessVSAvoidAvailable space for fan structure
Core Design Contradiction:
Volume of moving objectVSArea of stationary object

Solution Approach 1:

The mounting plate is designed with a flexible configuration where mounting holes can be positioned at different locations and orientations. This dimensional flexibility allows the fan structure to be adapted to various spatial constraints within compact device casings, enabling installation in available spaces regardless of the device's overall size

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

3Quantity of substance

If more electronic components are disposed in the smaller casing, then the device functionality is enhanced, but the mechanical space for the fan structure is further reduced

Engineering Contradiction:
ImproveNumber of electronic componentsVSAvoidMechanical space for fan structure
Core Design Contradiction:
Quantity of substanceVSArea of stationary object

Solution Approach 1:

By separating the fan assembly from the mounting structure, the design allows the mounting plate and pieces to be independently positioned and configured. This segmentation enables optimization of the fan's position to fit into available spaces between other electronic components, maximizing component density while maintaining proper fan installation

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 stable fixation and efficient heat dissipation of electronic devices by allowing easy installation and removal of the fan, while minimizing space usage, thus accommodating more components in compact devices.

Implementation Method 1

the fixing frame further comprises at least one resilient portion connected to the at least one positioning hook, and the at least one resilient portion drives the at least one positioning hook to separate from the at least one positioning slot as being pressed to move inwardly

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9394918B2Fan structure with easy assembly
Publication Date: 2016.07.19 WISTRON CORP
  • US9394918B2 patent drawing
  • US9394918B2 patent drawing
  • US9394918B2 patent drawing

AI summary

A fan structure includes at least one installation standoff, a fan and a fixing frame. An end of the at least one installation standoff is installed on a substrate, and a positioning slot is formed on the other end of the at least one installation standoff. The fixing frame is installed on the fan and includes at least one positioning hook for engaging with the positioning slot of the at least one installation standoff, so as to fix the fixing frame on the substrate. A guiding slot is formed on at least one side of the fixing frame for guiding the at least one installation standoff to move on the fixing frame. The fixing frame further includes at least one resilient portion connected to the at least one positioning hook for driving the at least one positioning hook to separate from the at least one positioning slot.