3D-Printed Enclosed Vent Filter With Integrated Vent Media
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Solution Overview
Problem
The injection molding process has limited utility for generating a vent component and a vent media in the same process, and it struggles with manufacturing fine feature details with high aspect ratio structures due to lack of flexibility in size and shape placement.
Innovation Solution
The 3D printing process is used to simultaneously print vent housing structures and vent media, allowing for the deposition of vent media on vent housing components during the same manufacturing method, which provides flexibility in printing complex geometries and features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If injection molding process is used to manufacture vent components, then component parts can be produced, but the process cannot generate vent component and vent media in the same process
Solution Approach 1:
The patent combines the vent component housing and vent media into a single integrated structure manufactured by 3D printing. The vent media is embedded directly within the housing during the printing process, eliminating the need for separate manufacturing and assembly steps required by injection molding. This merging of components resolves the contradiction by enabling both vent housing and vent media to be produced in one process while actually reducing overall manufacturing complexity.
Solution Approach 2:
The 3D printing process serves multiple functions simultaneously: it manufactures the vent housing structure, embeds the vent media, and creates the integrated assembly in a single operation. This multi-functionality of the manufacturing process addresses the limitation of injection molding which requires separate processes for different components, thereby improving process integration capability without increasing complexity.
2Manufacturing precision
If injection molding process is used, then mass production is possible, but fine feature details with high aspect ratio structures cannot be manufactured due to lack of flexibility
Solution Approach 1:
The patent utilizes 3D printing technology which allows for precise control of geometric parameters and material deposition during manufacturing. This enables the creation of fine feature details and high aspect ratio structures that are impossible with injection molding, while simultaneously providing the flexibility to modify designs without changing tooling. The parameter control capability of 3D printing directly resolves this contradiction.
Solution Approach 2:
The 3D printing process allows for dynamic adjustment of manufacturing parameters and geometric features during the printing process itself. Unlike injection molding which requires fixed molds, the 3D printing system can adapt and modify fine features and high aspect ratio structures on the fly, providing both manufacturing precision and geometric flexibility simultaneously.
3Productivity
If injection molding is used followed by additional processing, then vent components can be manufactured, but multiple processing steps including adhesives and sealants are required
Solution Approach 1:
The patent merges the manufacturing of vent housing and vent media into a single 3D printing process, eliminating the need for separate processing steps such as applying adhesives, sealants, and assembling multiple components. This consolidation directly improves productivity by reducing the number of steps while simultaneously reducing manufacturing complexity by removing intermediate processes.
Solution Approach 2:
The 3D printing process inherently integrates the vent media embedding function within the housing manufacturing process itself. The system performs multiple functions (housing creation, media embedding, structural formation) in one self-contained operation, eliminating the need for additional external processing steps and assembly operations required by traditional injection molding methods.
Data Source
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AI summary
A vent assembly having a housing (106) defining a cavity (202), a first end (102) and a second end (104), where the second end includes a coupling structure (108). The first end defines a window (110) in fluid communication with the cavity, wherein the window has a window perimeter. The vent assembly includes a vent media (206) spanning the cavity of the housing, where the vent media is breathable and forms a watertight seal to the housing at a perimeter of the vent media. The first end includes a screen structure (300) within the window perimeter of the window that can include repeating structures defining open areas.