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DC/DC Junction Box: Notes

The DC/DC junction box integrates a DC/DC converter to supply electric power to the 12 V power system and charge the 12V battery in addition to distributing high voltage power from the Li-ion battery to systems.

The DC/DC junction box has a normal charge relay and a quick charge relay so that the circuits are changed over according to the charge mode.

The DC/DC junction box has an internal cooling fin used to cool the DC/DC converter by water cooling.

Fig 1: Identifying DC/DC Junction Box
G08138174Courtesy of NISSAN NORTH AMERICA, INC.