Integrated Bulkhead Fitting in Fiber Optic Cable Closure
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Solution Overview
Problem
Current fiber optic closures have complex bulkhead assemblies with multiple components, leading to increased assembly time, potential for incorrect assembly, and higher inventory and manufacturing issues, as well as a higher risk of water ingress.
Innovation Solution
The integration of the bulkhead assembly body into the housing cover through molding, reducing the number of components and eliminating separate seals and threaded nuts, while maintaining sealing and interface functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional multi-component bulkhead assembly is used, then the sealing and interface functionality are maintained, but the number of components increases, assembly time increases, and the risk of water ingress increases
Solution Approach 1:
The bulkhead assembly body is integrally molded to the housing cover, merging what were previously separate components (bulkhead body, cover, seals, threaded nuts) into a single integrated structure. This eliminates the need for separate sealing components and fasteners, reducing the total component count by at least three while maintaining the sealing functionality through the integral design.
2Reliability
If a traditional multi-component bulkhead assembly is used, then the sealing functionality is maintained, but assembly time increases and quality control becomes more difficult
Solution Approach 1:
The integral molding of the bulkhead body to the housing cover eliminates multiple assembly steps including sealing component installation and fastener attachment. The single-piece construction reduces assembly time significantly while improving quality control by eliminating potential errors associated with manual assembly of multiple components.
3Reliability
If a traditional multi-component bulkhead assembly is used, then the interface functionality is maintained, but the risk of water ingress increases
Solution Approach 1:
The integral molding eliminates the interfaces between separate components (bulkhead body and cover junction, seal interfaces, threaded connections) that traditionally served as potential water ingress pathways. The monolithic structure removes these vulnerability points while preserving the bulkhead's interface functionality for fiber optic connections.
Data Source
AI summary
A fiber optic cable closure and method of forming the fiber optic cable closure are disclosed. The closure includes a housing having a base and a cover. The cover includes multiple ports each dimensioned to receive an associated drop cable. A bulkhead assembly joins associated connectors to associated optical fibers, and the bulkhead assembly includes a body formed as part of the housing cover. Preferably, an outer perimeter of the body is molded to the housing cover to form an integrated component that eliminates components such as separate seal members between the body and cover.