Cable Compression Die Assembly for Stranded Wire Pre-Compression
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Crimp connections in wire cables often have air pockets between strands, which reduce the current carrying capacity due to inadequate compression of stranded cables before crimping.
Innovation Solution
A cable compression die assembly within a compression tool is used to pre-compress stranded cables, reducing spaces between strands, and then crimping dies are used to form a superior connection with the cable connector, minimizing air spaces and enhancing current carrying capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If direct crimping is performed without pre-compression, then the process is simpler and faster, but air pockets form between wire strands reducing current carrying capacity
Solution Approach 1:
The compression tool is divided into two separate functional components: cable compression dies for pre-compressing the stranded cable and connector crimping dies for terminating the connector. This segmentation allows each component to be optimized for its specific function while maintaining overall system effectiveness.
Solution Approach 2:
The cable compression dies are used to pre-compress the stranded cable before the crimping operation. This preliminary compression eliminates air pockets between wire strands and compactsthe cable structure, ensuring optimal current carrying capacity before the connector is crimped onto the cable.
2Reliability
If pre-compression is applied to reduce air spaces, then current carrying capacity improves, but the compression process becomes more complex
Solution Approach 1:
The cable compression dies and connector crimping dies are designed to be integrated into a single compression tool system. Both sets of dies can be accommodated within the same tool, allowing the pre-compression and crimping operations to be performed sequentially using the same equipment, thereby simplifying the manufacturing and operational process.
Solution Approach 2:
The compression tool is designed with universal functionality to perform both cable pre-compression and connector crimping operations. The tool can accommodate different die assemblies depending on the required operation, making it a multi-functional device that handles multiple steps of the cable termination process.
3Reliability
If stranded cable is not compressed, then the crimping process is faster, but surface contact between conductors is insufficient
Solution Approach 1:
The cable compression dies perform the pre-compression of the stranded cable before the crimping operation. This preliminary action compactsthe cable strands, increases surface contact area between conductors, and eliminates air pockets, ensuring optimal electrical connection quality before the actual crimping takes place.
Solution Approach 2:
The compression tool is designed to perform both pre-compression and crimping operations in continuous sequence without requiring separate tools or operations. The cable compression dies prepare the cable, and then the connector crimping dies immediately follow to complete the termination, maintaining continuous productive action throughout the process.
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 solution effectively reduces air spaces between wire strands, resulting in a connection that can carry more current by ensuring greater surface contact between conductors, improving the electrical connection's performance.
Implementation Method 1
The dies are compressingly closable about the stranded cable by the compression tool. This will reduce spaces between strands of the stranded cable.
Implementation Method 2
In the case of large gauge wire strand cable, the compression tool is typically operated by mechanical leverage or hydraulic pressure.
Implementation Method 3
In the case of large gauge wire strand cable, the compression tool is typically operated by mechanical leverage or hydraulic pressure.
Data Source
AI summary
A cable compression die assembly is used in connection with a compression tool for compressing a stranded cable prior to crimping. Upper and lower compression dies each have a semicircular groove to compress the cable. A plurality of extending blocks guides each die into sliding engagement. The stranded cable will be compressed between the upper and lower compression dies to a reduced cable radius. Compressing generally reduces or eliminates air spaces between the stranded cable wire strands. A subsequent crimp connection forms a nearly monolithic structure to maximize current flow between two crimp connected compressed stranded cables.