Axial-Flow Fan Frame Vibration Reduction via Integrated Connection Members
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Solution Overview
Problem
Conventional axial-flow fans have complex structures and inefficient assembly processes due to separate fan frames and vibration-reducing members, which increase structural complexity and reduce assembly efficiency.
Innovation Solution
A fan frame design incorporating specially designed connection members with bending portions and notches that absorb vibration energy, eliminating the need for additional vibration-reducing members and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If vibration-reducing members are used as separate elements coupled with the fan frame, then vibration reduction is achieved, but structural complexity increases
Solution Approach 1:
The patent combines the fan frame and vibration-reducing members into an integrated structure where the connection members forming the fan frame inherently possess vibration-absorbing capabilities through their bending portions and notches, eliminating the need for separate vibration-reducing members
Solution Approach 2:
The connection members are designed to serve dual functions: structurally supporting the fan frame while simultaneously absorbing vibrations through their specially designed bending portions and notches, making them multi-functional components
2Object-affected harmful factors
If separate vibration-reducing members are coupled with the fan frame, then vibration reduction is achieved, but assembly efficiency decreases
Solution Approach 1:
The fan frame and vibration-reducing members are merged into a single integrated structure, eliminating the need for separate assembly steps and reducing assembly 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 fan frame effectively reduces vibration transmission from the impeller to the outside, improving vibration-reducing efficiency and simplifying the assembly process by integrating vibration absorption into the connection members.
Implementation Method 1
Each of the plurality of connection members includes a first bending portion and a second bending portion. The first bending portion extends around a first notch, and the second bending portion extends around a second notch... so as to improve the ability of the connection member to absorb the vibration energy
Data Source
AI summary
A fan frame of an axial-flow fan is provided to reduce the vibration generated during the rotation of the impeller that is transmitted to the outside of the axial-flow fan via the fan frame. The fan frame includes a housing, a base and a plurality of connection members. The base includes a shaft-coupling portion. Each of the plurality of connection members includes two ends respectively connected to the housing and the base. Each of the plurality of connection members is defined with an extension line passing through the two ends of the connection member. Each of the plurality of connection members includes a first bending portion and a second bending portion. The first bending portion extends around a first notch, and the second bending portion extends around a second notch. The extension line extends through the first and second notches.