Screwless Fan Mounting via Latch and Rubber Damping
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Solution Overview
Problem
Conventional fan devices in computer hosts require screws for fixation, making repair and replacement cumbersome and prone to noise due to ineffective vibration reduction.
Innovation Solution
A fan device with a latch mechanism using flexible and hard materials, featuring latch holes, hollow pillars, and rubber positioning jackets that absorb vibration, allowing screwless attachment and reducing noise through vibration absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix the fan on the casing, then the fan can be securely fixed, but the assembly and disassembly process becomes troublesome and time-consuming
Solution Approach 1:
The fixing mechanism is divided into separate components: the fan frame with latch holes, the positioning jackets with hollow pillars, and the latching structure. This segmentation allows the fan to be securely fixed through the interlocking mechanism while enabling easy disassembly by simply releasing the latch, eliminating the need for screw tools and simplifying maintenance operations
Solution Approach 2:
Instead of using screws that require tightening and loosening operations, the invention uses a latch mechanism that works in reverse logic: the default state is locked/secure, and a simple release action disengages the latch. This inversion of the fixing mechanism fundamentally changes the operation from complex screw assembly/disassembly to a simple latch release action
2Object-affected harmful factors
If no vibration reduction device is used, then the structure remains simple, but large noise is generated during fan rotation and fixed screws become easily loosened
Solution Approach 1:
The positioning jackets made of rubber material serve as an intermediary element between the fan frame and the casing. These jackets absorb vibrations generated during fan rotation, preventing noise transmission and reducing the loosening force on the latching mechanism. The rubber material acts as a mediator that converts mechanical vibration energy into heat through internal friction
Solution Approach 2:
The invention uses composite construction combining rigid components (fan frame, positioning inner jackets) with flexible vibration-absorbing materials (rubber positioning outer jackets). This composite approach provides both structural integrity for secure mounting and vibration damping for noise reduction, achieving dual functionality without significantly increasing overall device complexity
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
Facilitates easy assembly and disassembly, significantly reduces noise and vibration by using rubber materials to absorb torsional forces, eliminating the need for screws and enhancing operational quietness.
Implementation Method 1
a plurality of positioning outer jackets (30) which are made by a flexible material... effectively reducing a noise when the fan is rotating
Implementation Method 2
The pin 44 is inserted and tightly fitted into the positioning hole 34
Implementation Method 3
a plurality of positioning outer jackets (30) which are made by a flexible material... can be latched and fixed on a casing
Data Source
AI summary
A fan device for a computer host includes a rectangular container having an emplacement sink, a plurality of fans each of whose front and rear surfaces are provided with a plurality of latch holes, a plurality of positioning outer jackets made by a flexible material, and a plurality of positioning inner jackets made by a hard material and inserted into positioning holes of the positioning outer jackets, wherein an exterior edge of positioning outer jacket can be latched and positioned on an inner sink wall of the emplacement sink, so as to latch and fix the fans onto a casing of computer host without using screws, and to achieve the effects of absorbing vibration and reducing a noise at the same time.