One aspect of the present disclosure is directed to a connector. The connector includes a top cover, a connecting plate, and a base. The top cover includes a top cover body and a first arc member. A first end of the first arc member is arranged on a side surface of the top cover body. A removable thin plate is arranged inside the first arc member. The connecting plate includes a connection section and a protruding section. The top cover body and the base are engaged and connected to form a cavity. The connection section is arranged inside the cavity. The connection section is connected to the base. A first end of the protruding section is connected to the connection section and a second end of the protruding section protrudes from the base.

A terminal attaching/detaching device includes a housing, an engaging member, and a movable member. The engaging member is configured to move in a first direction toward a terminal inserted in the housing to engage with the terminal, and is configured to move from the terminal inserted in the housing in a second direction to disengage from the terminal. The movable member is configured to move in concert with the engaging member in the moving process thereof in the first direction, and is configured to move the engaging member from the terminal inserted in the housing in the second direction, so that the engaging member is disengaged from the terminal.

A device for connecting a conductor to a terminal, including a screw slidable inside the terminal of an apparatus, the screw having a first head portion to be actuated and screwed into a head nut and a second body portion to be screwed into a body nut mounted in a casing of the apparatus, the screw being mobile between an open position in which the screw is screwed only into the head nut so as to allow the introduction of a tag into the terminal between the screw body and a pad and a closed position in which the screw is screwed into both the body nut and the head nut so as to clamp the tag between this screw body and the pad. This device includes a device for synchronizing the threads respectively associated with the screw body and the screw head, this device ensuring automatic returning of the screw body towards the screw head when the screw body is brought into contact with the body nut during screwing until synchronization of the two threads.

A wire lug captivation system includes a bolt having a head, a shank adjacent the head and a threaded portion, the shank having a diameter that is smaller than a diameter of the threaded portion. The system also includes a captivation device including an upper portion, a lower portion and a connecting member that joins the upper and lower portions, the captivation device configured to receive a wire lug between the upper portion and the lower portion and including a threaded hole in the upper portion having diameter that is greater than the diameter of the shank.

A power relay for a vehicle, in particular a utility vehicle, is disclosed. The power relay contains a housing formed by a connecting base and a housing pot that is placed on the connecting base. Accordingly, two connecting bolts for establishing contact with an on-load circuit are formed by standard screws.

An electrical connector includes a split bolt, a fastener component, and a pressure bar. The split bolt includes a base, a first upright member, a second upright member, and a conductor receiving channel defined between the first and second upright members. The fastener component has a top surface, a bottom surface, and an opening receiving the first and second upright members. The pressure bar has a bottom section, a first leg, and a second leg. The pressure bar is movably received in the conductor receiving channel.

The present invention provides a connection unit capable of accommodating nuts and showing sealing ability in a state installed on a housing. A connection unit S includes: a terminal block 100 having holes h3 at one side of for accommodating nuts n; a terminal-connecting portions 200 at least partially exposed when viewed from the other side and fixed to the terminal block 100 with the circumferences of the terminal-connecting portions 200 in tight contact with the terminal block 100; and a nut cover 300 for covering the nuts accommodated in the holes h3 for preventing the nuts n from coming off. The connection unit S further includes: guide grooves and guide ribs for restricting movement of the nut cover 300 relative to the terminal block 100; and locking hooks 116 and locking holes h5 for restricting movement of the nut cover 300 relative to the terminal block 100.

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.