Anodic Oxidation Electrode Structure with Elastic Contact and Sealed Cover
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Solution Overview
Problem
During anodization, insufficient contact between the electrode and the aluminum base can lead to non-uniform anodization, and the entry of electrolytic solution into the connecting portion between the electrode and the lead wire can cause the lead wire to dissolve.
Innovation Solution
An electrode structure with a fixing member, an elastic member, and a cover member that includes a lead wire penetration opening, preventing electrolytic solution entry and ensuring consistent contact through a secure attachment mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the electrode is directly connected to the lead wire without a cover member, then the device complexity is reduced, but the lead wire dissolves due to electrolytic solution entry
Solution Approach 1:
A cover member is introduced as an intermediary component between the electrode and the external environment. This cover member includes a through hole that allows the lead wire to pass through while preventing electrolytic solution from reaching the lead wire connection portion, thus protecting the lead wire from dissolution without adding excessive complexity
Solution Approach 2:
The cover member acts as a protective shell structure that covers the connection portion of the electrode and lead wire. This shell provides physical isolation from the electrolytic solution while maintaining electrical connectivity through the through hole, solving the contradiction between simplicity and durability
2Ease of operation
If the electrode contact with aluminum base is loose, then the ease of operation is improved, but the anodization uniformity deteriorates
Solution Approach 1:
The electrode structure incorporates a movable or adjustable contact mechanism that allows the electrode to maintain consistent contact pressure with the aluminum base during operation. This dynamic adjustment ensures uniform anodization while keeping the installation process simple and easy to operate
3Device complexity
If the lead wire connection is exposed to electrolytic solution, then the device complexity is reduced, but the electrical connection reliability deteriorates
Solution Approach 1:
The cover member serves as a protective intermediary that isolates the lead wire connection portion from the electrolytic solution. The through hole in the cover member allows electrical connectivity while the covered portion prevents chemical degradation, maintaining reliable electrical connection without excessive structural complexity
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
Prevents contact failure and electrolytic solution ingress, ensuring uniform anodization and extending the lifespan of the lead wire by maintaining a secure electrical connection.
Implementation Method 1
An aluminum base is immersed in an acidic electrolytic solution of sulfuric acid, oxalic acid, phosphoric acid, or the like, or an alkaline electrolytic solution, and this is used as an anode in application of a voltage, which causes oxidation and dissolution
Implementation Method 2
The oxidation and the dissolution concurrently advance over a surface of the aluminum base to form an oxide film which has micropores over its surface
Data Source
AI summary
An electrode structure of the present invention includes: an aluminum electrode which is to be in contact with a surface of an aluminum base; a fixing member for fixing the aluminum electrode on the surface of the aluminum base; an elastic member provided between the fixing member and the aluminum base; a lead wire which is electrically connected to the aluminum electrode at least under a certain condition; and a cover member which is tightly closed with the lead wire penetrating through an opening.