Increase the heat dissipation area of ​​the conductor
● Forced cooling is adopted, and measures such as air cooling and water cooling can be used.
● Arrange the conductors reasonably, and the wiring harness with larger current should be arranged in a space that is easy to dissipate heat, which is conducive to natural heat dissipation.
Compression ratio/compression ratio calculation method
Acrimp is the conductor cross-sectional area included in the crimp; Aconductor is the nominal conductor cross-sectional area.
T is the area reserved when the crimping blade is closed; At is the cross-sectional area of ​​the nominal terminal; Ac is the cross-sectional area of ​​the nominal conductor.
The difference between conductor compression ratio and terminal compression ratio
According to the VW 60330-2013 standard, the calculation of the compression ratio only includes the conductor without terminal compression, which can more intuitively reflect whether there is a gap in the conductor. When the compression ratio is ≤ 00%, there should be no gap. We may call this the wire compression ratio.
According to the SAE/USCAR21-2014 standard, the calculation of the compression ratio includes the compression of the conductor and the terminal. Although it cannot intuitively reflect whether there is a gap in the conductor, it can more intuitively reflect the real cross-sectional area of ​​the crimp. In order to facilitate data comparison, this paper defines the terminal compression ratio=100T/(At+Ac).
Both calculation methods have their own advantages.