Electrical Connector Cap with Integrated Wire Cutting and Shielding
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Solution Overview
Problem
Terminating cables with multiple small-diameter wires, particularly in telecommunication applications, is difficult due to the complexity of managing and cutting individual wires effectively in existing connector systems.
Innovation Solution
A cap for electrical connectors featuring a housing with cutting members that automatically cut wires when mated with a termination assembly, along with electromagnetic shielding and a locking mechanism to prevent short-circuits and accidental disconnection, allowing for efficient termination of cables with multiple wires.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual wire cutting and termination is performed for each wire individually, then precision and control over each wire is improved, but the complexity and time required for termination increases significantly
Solution Approach 1:
The termination assembly is segmented into multiple independent wire guiding structures, each handling a specific wire individually. This allows precise control over each wire while maintaining an organized, systematic approach to multi-wire termination. The segmentation of functions (guiding, cutting, stripping, contacting) into distinct modular components resolves the contradiction by providing both individual precision and systematic efficiency.
Solution Approach 2:
The wire guiding structures perform preliminary actions by pre-positioning and aligning each wire before the actual termination process. The cutting members are pre-configured to automatically cut wires at the correct position, and insulation displacement contacts are pre-positioned to receive wires. This preliminary preparation reduces the complexity of the main termination operation while maintaining precision.
2Productivity
If automatic wire cutting is implemented, then the termination process is simplified and productivity is improved, but the risk of wire short-circuiting through the cutting member increases
Solution Approach 1:
The harmful conductive material of the cutting member is extracted from the wire path area. Openings are provided in the cutting member structure to remove conductive material that could cause short-circuits. The cutting function is separated from the supporting structure, allowing the cutting member to be positioned such that it cuts wires without creating a conductive path between them.
Solution Approach 2:
The cutting member has non-uniform conductivity distribution - it is conductive where needed for structural support and cutting edge functionality, but has openings or insulating sections where it intersects with wire paths. This local differentiation of conductivity ensures automatic cutting while preventing short-circuits between adjacent wires.
3Productivity
If multiple wires are guided and terminated simultaneously, then productivity is improved, but the space required in the connector housing increases
Solution Approach 1:
The wire guiding structures, cutting members, and insulation displacement contacts are nested within each other in a compact arrangement. The cutting members are positioned within the housing such that they intersect wire paths without requiring additional external space. The insulation displacement contacts are received within recesses in the housing, nesting the termination function within the existing housing volume rather than requiring separate termination components.
Solution Approach 2:
Multiple wires are guided and terminated by utilizing three-dimensional space efficiently. Wire guiding structures extend in different spatial dimensions, and cutting members are positioned at different depths and angles to intersect multiple wire paths. This dimensional arrangement allows simultaneous multi-wire termination without proportionally increasing the connector's external volume.
4Reliability
If electromagnetic shielding is added to protect against EMI, then reliability is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The electromagnetic shielding function is merged with the existing housing structure. The housing is formed from conductive material that provides shielding, combining the structural support function with the EMI protection function. This eliminates the need for separate shielding components while maintaining reliability against electromagnetic interference.
Solution Approach 2:
The conductive housing serves multiple functions simultaneously: it provides mechanical support and protection, defines the connector geometry, and acts as an electromagnetic shield. This multi-functionality reduces overall device complexity by eliminating dedicated shielding components while maintaining EMI 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
Simplifies the termination process by automatically cutting wires and providing effective electromagnetic shielding and secure locking, enhancing the reliability and efficiency of cable connections in electrical connectors.
Implementation Method 1
The first cutting member is provided for cutting the first wire
Implementation Method 2
the housing of the cap includes an electromagnetic shielding component for electrically contacting a shield of the cable
Data Source
AI summary
A cap for an electrical connector comprises a housing and a first cutting member with a first cutting blade. The housing includes an aperture for receiving a cable therethrough. The housing comprises at least a first wire guiding for guiding a first wire of the cable between the aperture and a first recess in a first outside wall of the housing. The first cutting member is arranged in a first slot of the housing and crosses the first wire guiding between the aperture and the first recess. The first cutting member is provided for cutting the first wire.