Manual service disconnects for battery systems

摘要

A manual service disconnect for a battery system includes a disconnect header having a housing defining a receptacle, a high current terminal connector within the receptacle, a high voltage interlock (HVIL) connector within the receptacle and a control device terminal connector within the receptacle. A disconnect plug is removably coupled to the disconnect header. The disconnect plug has a high current fuse electrically connected to the high current terminal connector and a HVIL shunt terminal electrically connected to the HVIL connector. A current power control device is received in the receptacle and is electrically connected to the control device terminal connector. The current power control device is exposed for servicing when the disconnect plug is removed from the disconnect header and the current power control device is inaccessible when the disconnect plug is coupled to the disconnect header.

主权项

1. A manual service disconnect for opening and closing a high current fused electrical path of a battery distribution unit used to switch and control operation of components of a battery system, the manual service disconnect comprising:
a disconnect header discrete from and configured to be mounted proximate to a battery distribution unit of a battery pack of the battery system, the disconnect header comprising a housing defining a receptacle isolated from an interior of the battery distribution unit, a high current terminal connector within the receptacle, a high voltage interlock (HVIL) connector within the receptacle and a low current control device terminal connector within the receptacle, the low current control device terminal connector operating at a lower current than the high current terminal connector, the high current terminal connector, the HVIL connector and the low current control device terminal connector are electrically connected to the battery distribution unit; a disconnect plug removably coupled to the disconnect header by a lever rotatable between closed and open positions for a manual connection and disconnection process for servicing the battery system, the disconnect plug having a high current fuse electrically connected to the high current terminal connector and a HVIL shunt terminal electrically connected to the HVIL connector, respectively, the disconnect plug being removed to disconnect the high current fuse and the HVIL shunt terminal from the high current terminal connector and the HVIL connector, respectively; and a low current power control device received in the receptacle, the low current power control device being electrically connected to the low current control device terminal connector, the low current power control device being exposed within the receptacle of the disconnect header of the manual service disconnect for servicing when the disconnect plug of the manual service disconnect is removed from the disconnect header without directly accessing the battery distribution unit, the low current power control device being inaccessible when the disconnect plug is coupled to the disconnect header.