In order to create a module connector for electrically conductively connecting at least two battery modules, comprising a connecting conductor, which has a contact region that is arrangeable on a contact element of a battery module, in which module connector a sufficient contact protection for a fastening element is ensured in a simple and reliable manner, it is proposed that the module connector comprises a contact protection element, which at least partially covers the contact region of the connecting conductor, and a fastening element for fixing the contact region of the connecting conductor to the contact element, wherein the fastening element in a rest position is held on the contact protection element and is transferable from the rest position into an assembly position in which a contact protection is provided for at least a protected part of the fastening element by the contact protection element.

Aspects of the present disclosure relate to a terminal fastener for electrically connecting a battery terminal associated with at least part of a traction battery to an electrical circuit of a vehicle, the terminal fastener comprising: a terminal engaging portion configured to engage with the battery terminal; a tool receiving portion configured to receive a tool to fasten the terminal engaging portion to the battery terminal; and insulation configured to cover at least part of the terminal fastener.

A battery terminal includes a terminal main body and a protector to be mounted to the terminal main body, wherein the terminal main body includes an operating section for clamping and tightening the battery post, and the protector includes a movable section provided with a contact section to be brought into contact with the upper surface of the battery main body, and a displacement section to be freely displaced between a covering position for covering the operating section and a retracted position with an external force applied on the contact section, wherein in the retracted position, the displacement section is retracted from the covering position, and wherein the displacement section is displaced to the retracted position by pressing the contact section against the upper surface of the battery main body so that the access to the operating section is allowed.

A coupling system establishes an electric connection between two electric components. The first component is positioned in a housing and includes at least one busbar, and the second component is disposed outside the housing and includes at least one current connection. An electrically conductive connection can be established between the busbar and the current connection by the coupling system. The coupling system includes a plug insert which can be plugged into the housing. The plug insert includes an insulator part, in which a sleeve and a washer nut are fixed. The insulator part has a recess which is formed in such a way that the busbar can be moved between the sleeve and the disc nut through the recess. A plug insert for a coupling system is also provided.

An installation switching device has a housing and screw connecting clamp with an essentially frame-shaped clamping part having longitudinal faces, narrow faces and broad faces, a head-clamp screw received in a clamping part threaded aperture, and a current rail arranged fixed in the device extending through the frame-shaped clamping part interior, wherein a current rail broad face is oriented, as assembled, parallel to a clamping part broad face facing the head clamping screw, the screw supporting itself, screwed in, on the current rail, wherein consequently, the clamping part is displaceable in its longitudinal direction, parallel to the narrow face, relative to the current rail by further screwing in the head clamping screw so a connecting conductor can be fixedly clamped between the current rail face remote from the screw and the clamping part broad face remote from the screw, the housing having a screw receiving region guiding the screw head.

An electrical connection jumper is of the screw type for terminal blocks of switchboards. The jumper includes conducting body including at least two sub-bodies, each with a shape substantially in the form of an overturned “U”, insulating body including at least two sub-bodies with a substantially parallelepiped shape made of suitable insulating material, connected together longitudinally by a vertical membrane with a reduced thickness in the transverse direction. Insulating body has a plane for coupling with the conducting body. The coupling plane includes, between each sub-body and adjacent sub-body, a pair of arched lugs arranged opposite each other in the transverse direction and extending in the longitudinal direction so that the respective vertical arms are respectively connected to each one of the adjacent sub-bodies. Each arched lug has a tooth extending in the transverse direction towards the inside of the insulating body in empty space between the two sub-bodies.

A fastener includes a head and a shaft extending from a first end to a second end. The first end is attached to the head. The shaft includes an external thread proximal the second end and a nut having an internal thread and an internal diameter. The second end of the shaft has a first condition and a second condition. In the first condition, an external diameter of the second end corresponds to the internal diameter of the nut such that the internal thread of the nut mates with the external thread of the shaft to attach the nut to the shaft. In the second condition, the external diameter of the second end is greater than the internal diameter of the nut such that the internal thread of the nut does not mate with the external thread of the shaft and the nut, once attached to the shaft, does not detach from the shaft.

A connection device for connecting electrical conductors includes a sheath clamp comprising a bottom part and a top part, a contact carrier to which the bottom portion of the sheath clamp is attached, and a detachable insulating cap configured for rotabably receiving the top part of the sheath clamp, wherein the detachable insulating cap is permanently connected to the contact carrier.

A module-terminal block connection structure includes: a printed wiring board; a terminal block which is disposed on one surface of the printed wiring board and is formed into a three-dimensional shape by a conductive material, the terminal block being fixed to the printed wiring board; a power module which is disposed on the other surface (rear surface) of the printed wiring board and includes an electric circuit and a press-fit type lead pin used as a circuit terminal; and a conductive portion which is electrically connected to the terminal block, includes a hole (through-hole) for press-inserting the lead pin thereinto, and is electrically connected to the power module while the lead pin is press-inserted into the hole.

A bus bar that includes a main body having a plate shape for arranging a terminal to be electrically connected to the bus bar; and an upright provided at a side in a widthwise direction of the main body, wherein: the main body has an open hole into which a shaft of a bolt is to be inserted, and the upright has an inner surface with which a head of the bolt can come into contact in a rotational direction.