Fan Vibration Absorbing Structure Using Intermediary Damping Element
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Solution Overview
Problem
Cooling fans produce vibrations during operation, which can adversely affect precision electronic units and are not acceptable in certain environments like servers, necessitating a solution to minimize these vibrations.
Innovation Solution
A fan vibration absorbing structure comprising a bearing cup with connected sections and a vibration absorbing element, which reduces vibrations by being fitted between these sections, and is integrated with a rotor, stator, and fan frame to minimize operational vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling fan operates to dissipate heat, then heat dissipation efficiency is improved, but vibration is generated that adversely affects precision electronic units
Solution Approach 1:
The patent introduces a vibration absorbing element as an intermediary component between the bearing cup and the fan frame. This element acts as a mediator that absorbs and dampens vibrations generated during fan operation, preventing them from transmitting to precision electronic units while allowing the fan to continue operating for heat dissipation.
Solution Approach 2:
The vibration absorbing element is pre-installed within the bearing cup structure before the fan operates. This beforehand cushioning approach ensures that vibration absorption capability is already in place before harmful vibrations are generated, protecting precision electronic units from the outset.
2Object-affected harmful factors
If the bearing cup is designed with multiple sections to accommodate vibration absorbing elements, then vibration absorption capability is improved, but device complexity increases
Solution Approach 1:
The bearing cup is divided into multiple sections or regions, with specific sections dedicated to housing vibration absorbing elements. This segmentation allows the bearing cup to simultaneously maintain its structural function and incorporate vibration absorption capabilities without requiring complete redesign of the entire structure.
Solution Approach 2:
The bearing cup is designed to serve multiple functions: supporting the bearing, housing vibration absorbing elements, and maintaining structural integrity. By making the bearing cup multi-functional, the patent reduces the need for additional separate components, thereby limiting the increase in 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
The structure effectively reduces fan vibrations during operation, protecting other components from potential damage caused by vibrations and ensuring smoother operation in sensitive environments.
Implementation Method 1
The vibration absorbing element is fitted between the first and the second section
Data Source
AI summary
A fan vibration absorbing structure includes a bearing cup and a vibration absorbing element. The bearing cup includes a first section, a second section and a bearing holding hole. The first and the second section are connected end-to-end to enclose a receiving space therein, which communicates with the bearing holding hole. The vibration absorbing element is fitted between the first and the second section. With the fan vibration absorbing structure included in a fan, it is able to largely reduce the vibration occurred during fan operation.