Defensive Publication——Adjustable compression ratio for hex crimp

摘要

With the electrification of vehicles, the engineers are more and more challenged to develop solutions for power applications. The interconnection between the terminal and the cable is key on connection systems performances. With the increase of cable size & strand number, the challenge appears to ensure a good conductivity between each single strands. To ensure this cross conductivity, core compression is the key parameter. Nevertheless optimal core compression depends on so many parameters (material properties, wall thickness, cable quality, serrations...) that makes impossible the definition of a global rule regarding cable compression. The crimping die comprises two protrusions (3,4) arranged protruding towards each other. The two protrusions imprint two embossment (13, 14) in the terminal. The two embossment (13,14) allows to increase local pressure to enhance strand to strand and strand to barrel conductivity. Consequently, definition of cable compression is done experimentally. A given crimp die corresponds to a given cable compression meaning that if it is required to modify the cable compression, it is required to change the entire crimping die (1,2).