Vibrating Plate Airflow Accelerator Resonance Control
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Solution Overview
Problem
The miniaturization of electronic apparatuses leads to airflow accelerating devices resonating with their structures due to vibrating plate frequencies, causing vibrations and inefficient heat dissipation, especially when external air passages increase system resistance.
Innovation Solution
The design incorporates a housing with M division plates dividing it into M sub-chambers, where M vibrating plates with opposite vibrating directions counteract each other's forces, reducing resonance and enhancing airflow directionality through strategically placed air outlets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the size of the airflow accelerating device is reduced for miniaturization, then the device becomes more compact and suitable for portable electronics, but the vibrating plate may resonate with the device structure or surrounding structures, causing unwanted vibrations
Solution Approach 1:
The device is divided into multiple independent vibrating plates (first vibrating plate and second vibrating plate) positioned in separate sub-chambers. Each vibrating plate operates independently, allowing the system to achieve the required airflow acceleration while distributing the vibration sources to reduce resonance effects in the compact structure.
Solution Approach 2:
The first and second vibrating plates are configured to vibrate in opposite directions. When the first vibrating plate moves in one direction, the second vibrating plate moves in the opposite direction, creating counterbalancing forces that cancel out resonance vibrations and reduce unwanted oscillations in the miniaturized device structure.
2Adaptability or versatility
If external air passages are added to change wind direction for vertical heat sources, then heat dissipation coverage is improved, but system resistance increases and wind volume is reduced
Solution Approach 1:
Instead of adding external air passages to change wind direction horizontally, the invention uses vertical arrangement of multiple sub-chambers with air outlets oriented in different vertical directions. This allows the wind to be directed toward heat sources in vertical directions (above or below the device) without requiring complex external channels, thereby maintaining high wind volume while achieving multi-directional heat dissipation coverage.
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
This arrangement reduces vibration-induced resonance and enhances heat dissipation by ensuring a stronger, directed airflow to heat sources, improving the cooling efficiency of electronic apparatuses.
Implementation Method 1
at least one vibrating plate, disposed within the chamber
Implementation Method 2
the vibrating frequency of the vibrating plate of the airflow accelerating device may cause it to resonate with the airflow accelerating device per se or the periphery structure thereof
Implementation Method 3
the film vibration fan generates wind by the vibration of a thin film in a limited space, and the wind is directed to the heat generating element through the air outlet in a horizontal direction
Data Source
AI summary
The present invention discloses an airflow accelerating device and an electronic apparatus. The airflow accelerating device comprises: a housing, having a chamber formed therein; at least one vibrating plate, disposed within the chamber; at least one division plate, fixed in the housing, for dividing the chamber into at least two sub-chambers, each of the at least two sub-chambers having at least one air outlet configured to transmit airflow generated by vibration of the vibrating plate to outside of the chamber.