Ionizer Resin Casing Air Flow Path Design
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Solution Overview
Problem
Conventional ionizers face challenges in creating a pressure-resistant air flow path within a hollow casing without increasing volume or complexity, requiring strong joining of large flow route forming members or reducing air pressure.
Innovation Solution
The ionizer features a hollow casing with a synthetic resin conduit integrated into the inner wall, forming a pressure-resistant air flow path that communicates with an air outlet, allowing for a large cross-sectional area without bulkiness and simplifying assembly by direct connection to a compressed air supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If large flat plate shaped flow route forming members are joined together to form an air flow path, then the air flow path can be formed, but the joining strength must be increased sufficiently to endure high air pressure, requiring the members to be formed large enough or the air pressure to be lowered
Solution Approach 1:
The patent integrates the flow route forming members with the hollow casing into a single unified structure. The casing itself is designed to incorporate the air flow path channels directly within its walls, eliminating the need for separate flow route forming members and their complex joining processes. This merging resolves the contradiction by removing the joining strength requirement entirely while maintaining the air flow path functionality.
Solution Approach 2:
The hollow casing serves multiple functions simultaneously: it provides structural containment for the ionizer components and also forms the air flow path channels within its structure. This multi-functionality eliminates the need for dedicated flow route forming members, thereby resolving the contradiction between joining strength requirements and assembly complexity.
2Ease of operation
If flow route forming members are made separately from the hollow casing, then assembly flexibility is maintained, but complicated assembly work such as connections with tubes is required
Solution Approach 1:
The flow route forming members are merged with the hollow casing into a single integrated component. The casing is designed with internal channels that form the air flow path, eliminating the need for separate flow route members and their associated tube connections. This integration directly resolves the contradiction by simplifying assembly while maintaining operational ease.
3Reliability
If the air flow path is formed by joining upper and lower plate shaped flow route forming members, then the air flow path can be constructed, but the force applied onto the members becomes extremely large due to air pressure
Solution Approach 1:
The flow route forming members are combined with the hollow casing to create a unified pressure-resistant structure. The casing walls themselves form the air flow path channels, distributing the air pressure forces across the entire casing structure rather than concentrating them on separate joined members. This resolves the contradiction by improving pressure resistance without requiring additional member strength.
Solution Approach 2:
The hollow casing acts as a flexible yet pressure-resistant shell that contains and directs the air flow. The integrated design allows the casing to flexibly accommodate pressure variations while maintaining the integrity of the air flow path, resolving the contradiction between pressure resistance and member strength requirements.
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 a pressure-resistant air flow path with an effective cross-sectional area, simplifying the structure and assembly of the ionizer while maintaining efficient ion delivery to charged objects.
Implementation Method 1
high direct current or alternating current voltage from a high voltage generating unit is applied to a needle electrode and corona discharge is generated
Data Source
AI summary
To provide an ionizer wherein an air flow path in a hollow casing is formed so as to be pressure-resistant while ensuring an effective cross sectional area without becoming voluminous, and the flow path is ensured simply and easily. In an ionizer including a hollow casing that contains a high voltage power unit and a control unit inside, along the longitudinal direction of the casing, a plurality of electrode units each including needle electrodes and an air outlet for blowing out an air stream around the needle electrodes are arranged in a line. A part along the longitudinal direction of the hollow casing is formed of a synthetic resin, and a resin casing composed of the synthetic resin is integrally formed with a conduit of an air flow path extending in the longitudinal direction of the casing so that a part of the inner wall of the resin casing serves as a wall of the conduit and that the air flow path communicates with the air outlet.