Ion Generation Apparatus with Segmented Induction Electrodes
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Solution Overview
Problem
Conventional ion generation apparatuses experience unstable ion generation due to thermal expansion differences between the substrate and induction electrode, leading to warpage and misalignment of needle electrodes, which affects corona discharge and ion production consistency.
Innovation Solution
The ion generation apparatus features independently formed and mounted first and second induction electrodes for positive and negative ion generation, respectively, with a power supply circuit that applies regular pulse voltages to maintain electrode alignment and stability across temperature changes, including a boost transformer and diode thyristor for efficient high-voltage pulse generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single induction electrode is used on the substrate, then the structure is simple, but thermal expansion differences cause warpage and misalignment
Solution Approach 1:
The induction electrode is divided into multiple independent induction electrodes (first induction electrode and second induction electrode), each mounted separately on the substrate. This segmentation allows each electrode to expand independently with temperature changes, preventing warpage and maintaining alignment precision while achieving both structural simplicity and manufacturing precision.
2Stability of the object's composition
If the substrate and induction electrode are rigidly connected, then structural stability is achieved, but thermal expansion causes warpage
Solution Approach 1:
The rigid connection between substrate and induction electrode is replaced by mounting multiple independent induction electrodes on the substrate. This allows each electrode to accommodate thermal expansion independently while maintaining overall structural stability, resolving the contradiction between rigid connection and thermal expansion.
3Productivity
If needle electrodes are positioned at hole centers, then ion generation is optimized, but thermal warpage causes misalignment
Solution Approach 1:
The single induction electrode structure is segmented into multiple independent induction electrodes, each with its own needle electrode positioned at the hole center. This segmentation ensures that each electrode-needle-hole assembly maintains proper alignment independently, preserving ion generation efficiency while ensuring alignment consistency despite thermal changes.
4Device complexity
If a single induction electrode is used, then the device is simple, but ion generation becomes unstable due to warpage
Solution Approach 1:
The single induction electrode is segmented into multiple independent induction electrodes mounted on the substrate. This configuration maintains relative simplicity while ensuring that each electrode operates independently without warpage-induced misalignment, thereby guaranteeing stable ion generation.
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 design ensures stable generation of positive and negative ions by maintaining electrode alignment despite temperature changes, resulting in consistent ion production and improved ion concentration ratios.
Implementation Method 1
corona discharge occurs at tip end portions of needle electrodes 58 and 59, and positive ions and negative ions are generated at the tip end portions of needle electrodes 58 and 59
Data Source
AI summary
In an ion generation apparatus, an induction electrode for generating positive ions and an induction electrode for generating negative ions are each formed as an independent part and separately mounted on a substrate. Therefore, even if the substrate is warped with changes in temperature, tip end portions of needle electrodes can be positioned at the centers of through holes in the induction electrodes, respectively, and positive ions and negative ions can be stably generated.