Coating Head Slope Design for Mist Recovery
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Solution Overview
Problem
The mist coating film formation apparatus faces issues with yield and throughput due to accumulation of source material solution in the coating head, leading to increased costs and decreased manufacturing efficiency, as the existing design requires frequent dismantling and cleaning for material changes.
Innovation Solution
The coating head features a main body with a top plate, bottom plate, and sidewall, including a slit for mist spraying and a recovery port, with the bottom plate having a slope that allows easy recovery of cleaning liquid or accumulated source material solution, improving yield and throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the mist coating apparatus straightens the flow of mist inside the coating head, then uniform thin film formation is achieved, but source material solution accumulates inside the coating head causing yield decrease
Solution Approach 1:
The invention extracts the accumulated source material solution from the coating head interior through a dedicated recovery port. The slope structure guides the accumulated liquid toward the recovery port, enabling easy extraction without dismantling the coating head, thus resolving the contradiction between maintaining uniform film formation and preventing material loss.
Solution Approach 2:
The invention implements a recovery system that captures and reuses the source material solution that would otherwise be discarded. The slope and recovery port enable collection of accumulated material, which can then be reused, transforming waste into recoverable resource and improving both yield and cost efficiency.
2Adaptability or versatility
If the coating head is dismantled and cleaned for material changes, then different thin films can be formed, but work man-hours increase and throughput decreases
Solution Approach 1:
The invention provides a dedicated extraction path for source material solution through the recovery port and slope structure. This allows rapid removal of accumulated material without dismantling the coating head, enabling quick material changes and maintaining high manufacturing throughput while preserving adaptability.
Solution Approach 2:
The slope structure is pre-configured to guide accumulated material toward the recovery port, preparing the system for rapid material extraction. This preliminary structural arrangement eliminates the need for time-consuming dismantling operations during material changes.
3Loss of substance
If source material solution accumulates in the coating head, then yield decreases, but frequent cleaning and dismantling increase operational complexity
Solution Approach 1:
The slope structure automatically guides accumulated source material solution toward the recovery port using gravity, enabling self-service material recovery without complex mechanical systems or manual intervention. This simple passive structure reduces operational complexity while improving recovery efficiency.
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 enables easy recovery and re-utilization of the source material solution, reducing the need for frequent cleaning and dismantling, thereby enhancing the yield and throughput of the coating head.
Implementation Method 1
The coating liquid atomization mechanism obtains a coating liquid mist having a liquid droplet form by atomizing a coating liquid including a prescribed source material inside an atomizing container by utilizing an ultrasonic vibrator.
Implementation Method 2
The bottom plate includes a slope having a height becoming lower from an inner perimeter of the sidewall toward the recovery port.
Data Source
AI summary
According to an embodiment of the invention, a coating head of a mist coating film formation apparatus including a main body is provided. The main body includes a top plate in which a supply port capable of supplying one of a cleaning liquid or a mist of a source material solution is provided, a bottom plate provided below the top plate in a vertical direction, and a sidewall provided between the top plate and the bottom plate; and the sidewall includes an upper end and a lower end connected respectively to the top plate and the bottom plate and forms an interior space with the top plate and the bottom plate. The sidewall includes a slit spraying the mist externally from the interior space, and a recovery port capable of recovering the supplied cleaning liquid or a mist coalescing in the interior space. The bottom plate includes a slope having a height becoming lower from an inner perimeter of the sidewall toward the recovery port.