Ionized Air Blower with Feedback-Based Ion Balance Control
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Solution Overview
Problem
Conventional ionization devices struggle with balancing positive and negative ion output, leading to inefficiencies in neutralizing static charge on surfaces and maintaining ion balance.
Innovation Solution
An ionized air blower system with a control circuitry that adjusts the ratio of positive and negative ions based on real-time feedback from sensors, allowing for both ion balanced and ion imbalanced modes to achieve static charge neutralization and ion balance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional ionization devices are used, then ion output is generated, but ion balance between positive and negative ions cannot be maintained
Solution Approach 1:
The patent employs an ion balance sensor that continuously monitors the ion balance in the workspace and provides feedback to a control circuit. The control circuit adjusts the high voltage power supplies based on this feedback to maintain balanced ion output. This closed-loop feedback mechanism resolves the contradiction by automatically maintaining ion balance without requiring manual operation or adjustment.
2Measurement precision
If ion balance sensor is placed close to ion emitters, then ion balance can be detected, but sensor may be affected by strong electric field
Solution Approach 1:
The patent introduces a sensor grille as an intermediary structure between the ion emitters and the ion balance sensor. The grille physically separates the sensor from the strong electric field region while still allowing ion detection. This intermediary structure enables precise ion balance measurement without exposing the sensor to harmful electric field interference.
3Reliability
If high voltage power supplies are made switchable, then ion balance control is improved, but system complexity increases
Solution Approach 1:
The patent implements switchable high voltage power supplies that can dynamically adjust between positive and negative ion output based on real-time ion balance conditions. This dynamic switching capability allows the system to maintain ion balance automatically, resolving the contradiction by making the system adaptable rather than static, even though it increases complexity.
4Productivity
If ion emitters are continuously operated, then ion output is maintained, but ion balance may drift over time
Solution Approach 1:
The patent implements periodic switching between positive and negative ion emission modes based on ion balance sensor feedback. Rather than continuous operation in a fixed mode, the system periodically adjusts its operation to maintain ion balance. This periodic action resolves the contradiction by preventing ion balance drift while maintaining overall ion output productivity.
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
Effectively neutralizes static charge on surfaces and maintains ion balance by dynamically adjusting ion ratios, enhancing the efficiency and precision of ionization processes.
Implementation Method 1
an ionizer configured to produce positive ions and negative ions in the airflow
Implementation Method 2
a sensor configured to detect a charge of the airflow generated by the ionized air blower
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
Various aspects of the disclosure provides for an ionized air blower that can be used to neutralize static charge on a target surface or provide a charge on the target surface. The ionized air blower may comprise a fan configured to generate airflow toward a target surface, an ionizer configured to produce positive ions and negative ions in the airflow, and control circuitry. The control circuitry is configured to control one or both of a speed of the airflow from the blower and ionization of the airflow. The ionization is performed by a selected one of ion imbalanced mode or ion balanced mode of the blower.