Series Fan Structure With Damping Element For Vibration Absorption
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Solution Overview
Problem
Conventional series fan structures suffer from poor vibration absorption, increased noise due to resonance, and limited air volume due to axial connection of fans, which restricts airflow and system stability.
Innovation Solution
The series fan structure incorporates a combining part with holes that connects two fans, allowing for improved vibration absorption and increased air volume by enabling airflow between the fans and reducing resonance-induced noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If two fans are axially connected in series with conventional fastening elements, then the device complexity is reduced and manufacturing is simplified, but the vibration absorption effect is poor and noise increases
Solution Approach 1:
A damping element is introduced as an intermediary component between the two fan assemblies. This damping element serves as a mediator that absorbs vibration and reduces noise while still allowing the two fans to be connected in series. The damping element is positioned within the air passage, connecting the first and second fan assemblies, and effectively isolates the vibration generated by motor torque without complicating the overall assembly process.
2Device complexity
If two fans are serially connected with the same size fan frames, then the device structure is simplified, but the air volume is limited due to restricted airflow
Solution Approach 1:
The air passage is segmented into multiple regions by introducing a damping element that creates distinct flow paths. The damping element divides the air passage into a first air passage and a second air passage, allowing air to flow through both segments simultaneously. This segmentation enables the first fan to blow air into the first passage while the second fan draws air from the second passage, effectively increasing the total air volume without requiring different sized fan frames.
3Ease of operation
If conventional fastening elements are used to connect series fans, then the ease of operation is maintained, but the system stability is reduced due to poor vibration absorption
Solution Approach 1:
The damping element acts as an intermediary that improves system stability while maintaining ease of assembly. It is integrated into the fan assembly structure, where it connects to both the first and second fan assemblies through its supporting portions. The damping element absorbs vibration generated during operation, reducing the impact on system stability, while still allowing for straightforward assembly using conventional fastening methods.
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 solution effectively reduces noise and enhances air volume while improving vibration absorption, addressing the limitations of conventional series fan designs.
Implementation Method 1
a damping element, which has a first end, a second end, a plurality of first supporting portions, and a plurality of second supporting portions; the first end is connected to the first fan assembly; the second end is connected to the second fan assembly
Implementation Method 2
A first connecting space is defined among the first supporting portions and communicated with the first passage... a plurality of first holes communicated with the first and the second passage
Data Source
AI summary
A series fan structure includes at least one first combining part and a series fan assembly, which has a first fan and a second fan mated with the first fan. The first fan has a first base and a lateral side, which together internally define a first passage. The first base is outwardly extended to form a plurality of a first supporting portions connected to the first lateral side. A first connecting space is defined among the first supporting portions and communicated with the first passage. The second fan has a second base and a lateral side, which together internally define a second passage, which is communicated with the first passage and the first connecting space. The first combining part is located in the first connecting space and connected to the first supporting portions and has a plurality of first holes communicated with the first and the second passage.