Ion Wind Jet Flow Generation Device Quiet Control
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Solution Overview
Problem
Existing jet flow generation devices struggle to make minor changes to the characteristics of the jet flow while maintaining quietness, as they rely on mechanical mechanisms that generate impact noise and lack control over factors other than rotational speed.
Innovation Solution
A jet flow generation device comprising a discharge electrode, a reference electrode, a power supply circuit, and a controller that switches the output voltage to control corona discharge, allowing for the injection of ion wind as a jet and enabling minor changes to the jet characteristics while ensuring quietness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a mechanical mechanism (cam and rod) is used to instantaneously move the air chamber, then a high-speed jet flow can be generated, but impact noise is produced and control over jet characteristics is limited
Solution Approach 1:
The patent replaces the mechanical cam-rod system with an electromagnetic valve system. The electromagnetic valve can rapidly open and close to control air flow into the air chamber, achieving high-speed jet generation without mechanical impact noise. The solenoid actuator provides contactless actuation, eliminating the noise associated with mechanical components striking each other during rapid movement.
Solution Approach 2:
The patent enables control over multiple parameters including air chamber pressure, injection timing, and jet duration by controlling the electromagnetic valve operation. By adjusting the voltage applied to the solenoid, the opening/closing speed and timing can be precisely controlled, allowing fine-tuning of jet characteristics such as duration, intensity, and waveform without being constrained by fixed mechanical geometry.
2Device complexity
If a mechanical mechanism with fixed geometry is used, then the structure is simple, but minor changes to jet characteristics cannot be made
Solution Approach 1:
The electromagnetic valve system allows dynamic adjustment of operational parameters (voltage, pulse width, frequency) to modify jet characteristics. The same basic hardware configuration can produce different jet patterns, durations, and intensities by changing electrical control parameters, providing versatility without increasing mechanical complexity.
Solution Approach 2:
The system transitions from static mechanical geometry to dynamic electrical control. The electromagnetic valve can respond rapidly to control signals, enabling real-time adjustment of air flow rates and timing. This dynamic control capability allows the system to adapt jet characteristics on demand while maintaining a relatively simple overall structure.
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 allows for precise control over the jet characteristics, enabling minor adjustments while maintaining quiet operation by switching the output voltage to induce or cease corona discharge, thus improving the versatility and noise reduction of the jet flow generation.
Implementation Method 1
a power supply circuit that generates an output voltage to control a potential difference between the discharge electrode and the reference electrode; a controller that switches the output voltage of the power supply circuit between a first voltage that does not induce corona discharge between the discharge electrode and the reference electrode and a second voltage that induces corona discharge between the discharge electrode and the reference electrode
Implementation Method 2
a case housing at least the reference electrode has an injection port that injects an ion wind of ions generated by the corona discharge
Data Source
AI summary
A jet flow generation device includes: a discharge electrode; a reference electrode that is disposed away from the discharge electrode; a power supply circuit that generates an output voltage to control a potential difference between the discharge electrode and the reference electrode; a controller that switches the output voltage of the power supply circuit between a first voltage that does not induce corona discharge between the discharge electrode and the reference electrode and a second voltage that induces corona discharge between the discharge electrode and the reference electrode; and a case housing at least the reference electrode has an injection port that injects an ion wind of ions generated by the corona discharge.