Connection unit for battery utilized in motor vehicle, has nut comprising tightening zone to connect nut with screw and collar, so that tightening of connection by rotation of screw drives displacement of tightening zone of nut

摘要

The connection unit (10) has a collar (30) comprising a hole (32) through which a screw (20) is directly passed according to an axis parallel to a stud axis. A nut (40) comprises a tightening zone (41) to connect the nut with the screw and the collar, so that tightening of connection by rotation of the screw drives displacement of the tightening zone of the nut with respect to the collar in a direction of a stud. The nut is placed in a released position, where the tightening zone of the nut is located far away from the stud.