Casing Plate Dovetail Grooves for Uniform Inorganic Coating
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Solution Overview
Problem
Conventional casing manufacturing methods result in uneven protective film growth due to clamping, leading to aesthetic issues and potential rust, while additional protection measures like plastic or rubber blocks compromise weight and thickness.
Innovation Solution
A casing plate design featuring dovetail grooves on a rigid board allows for complete coverage by an inorganic protective layer during manufacturing, eliminating the need for clamping and subsequent cutting, thereby ensuring even film growth and preventing rust.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If clamping is used to hold the casing during protective film formation, then the casing can be processed in batches, but the protective film growth becomes uneven and edges are cut
Solution Approach 1:
The casing is divided into multiple hanging parts, each suspended from hooks through holes in the casing body. This segmentation allows the casing to be held in an inverted position during batch processing, enabling complete immersion in the chemical tank without clamping, thus achieving uniform protective film growth across the entire surface.
2Shape
If edges are cut to remove uneven film areas, then the appearance is improved, but rust and stress concentration occur in the cut areas
Solution Approach 1:
The harmful clamping process is extracted and replaced by using holes in the casing body as hanging points. This allows the casing to be suspended inverted during processing, eliminating the need for clamping and subsequent edge cutting, thereby preventing rust and stress concentration while maintaining appearance quality.
3Reliability
If plastic or rubber protection blocks are added for protection, then corrosion protection is improved, but weight and thickness increase
Solution Approach 1:
The casing body itself serves the protective function by being suspended inverted during processing, allowing the protective film to form uniformly on all surfaces including edges. This eliminates the need for additional plastic or rubber protection blocks, reducing weight while maintaining corrosion protection.
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 design achieves a smooth, continuous protective layer without cutting, enhancing aesthetics and enabling a lighter, thinner casing structure.
Implementation Method 1
a protective film layer is generally formed on a surface of the casing in a manner of electroplating, anodizing, chemical formation, or the like
Implementation Method 2
a protective film layer is generally formed on a surface of the casing in a manner of electroplating, anodizing, chemical formation, or the like
Implementation Method 3
a protective film layer is generally formed on a surface of the casing in a manner of electroplating, anodizing, chemical formation, or the like
Data Source
AI summary
A casing plate includes a rigid board and an inorganic protective layer. The rigid board includes a first surface, a second surface, and a circumferential wall. A distance between the first surface and the second surface ranges from 0.6 mm to 1.8 mm. At least two dovetail grooves are formed on the second surface, and a depth of each dovetail groove ranges from 0.3 mm to 1.2 mm. The inorganic protective layer covers the first surface, the second surface, the circumferential wall, and a bottom surface and wall surfaces of each dovetail groove. Through the design of the dovetail grooves, the dovetail grooves may be used as hooking points when the inorganic protective layer is manufactured on the surface of the rigid board, so that the inorganic protective layer can completely cover the rigid board without subsequent cutting, thereby improving aesthetics and avoiding rust.