Cable Assembly Housing with Internal Ferrule Strain Relief
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Solution Overview
Problem
Existing cable assemblies face challenges such as increased manufacturing costs due to different transceiver designs for various cable sizes, rigid cable strain relief that extends beyond the housing, and difficulties in cable management, leading to a larger footprint and longer cable length.
Innovation Solution
A cable assembly design featuring a housing with a mounting block and ferrule system that captures the cable braid within the housing, using a retainer with tabs and slots for secure retention, allowing for multiple cable diameters to be accommodated in a common housing with reduced length and footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable strain relief extends well beyond the housing to surround the cable braid termination, then the cable braid is securely retained, but the overall length of the assembly increases and cable management becomes difficult
Solution Approach 1:
The patent extracts the cable strain relief from the external housing structure and integrates it within the housing interior. The strain relief is positioned inside the housing to surround the cable braid termination, eliminating the need for it to extend beyond the housing. This extraction resolves the contradiction by maintaining secure cable retention while reducing the overall assembly length and improving cable management.
Solution Approach 2:
The patent implements nesting by placing the cable strain relief within the housing interior, creating a nested configuration where the strain relief is contained within the housing boundaries. This nested arrangement allows the strain relief to perform its function of securing the cable braid without increasing the external dimensions of the assembly, thus resolving the length issue while maintaining retention security.
2Adaptability or versatility
If different transceiver designs are used for various cable sizes, then each cable size is properly accommodated, but manufacturing costs increase due to requiring different molds
Solution Approach 1:
The patent applies universality by designing a single common housing that can accommodate multiple cable sizes. The housing includes a cable opening with adjustable or configurable features that allow it to work with different cable diameters. This universal design eliminates the need for separate molds for each cable size, reducing manufacturing costs while maintaining the ability to properly accommodate various cable sizes.
Solution Approach 2:
The patent utilizes parameter changes by modifying the cable opening characteristics within the common housing to accommodate different cable sizes. By changing parameters such as opening diameter, positioning, or associated retention features, the same housing can adapt to different cable dimensions. This approach maintains cable size accommodation capability while using a single housing design, thereby reducing manufacturing costs.
3Stability of the object's composition
If the cable strain relief is made rigid to provide structural support, then cable positioning is stable, but the cable straight line distance from the front of the transceiver increases
Solution Approach 1:
The patent extracts the cable strain relief from the external region and relocates it within the housing interior. By positioning the rigid strain relief inside the housing to surround the cable termination, the cable is stabilized at the termination point without requiring the strain relief to extend forward. This extraction reduces the cable's straight line distance from the front of the transceiver while maintaining positioning stability through the internal strain relief structure.
Data Source
AI summary
A cable assembly includes a housing having a mating end and a cable end and receives a cable through the cable end. The housing has a mounting block proximate to the cable end. A ferrule is configured to be terminated to the cable. The ferrule has an inner bushing and an outer bushing, with the inner and outer bushings cooperating to capture a cable braid of the cable therebetween. The ferrule is retained within the mounting block such that the ferrule is housed interior of the housing.