A clamp for a male terminal having features for preventing incorrect clamping, which comprises a main body having a ring and two jaws, that are movable toward each other for the ring to hold the terminal. An engagement element is movable in the vertical direction and to act upon the jaws to move them toward each other. A clamping member, operable to move the engagement element comprises a stem and a nut. The stem is fixed to a base body, which is pivotable relative to the main body between a first position, in which the stem is inclined with respect to the vertical and a second position, in which the stem extends in the vertical direction. In the first position, the engagement element prevents the nut from engaging a threaded portion of the stem. In the second position, the threaded portion is adapted to be engaged by the nut.

An electrical connection system includes a mounting stud having a base configured for mounting to a conductive surface. One or more one ring-shaped lugs, formed of an electrically conductive material, are configured for being positioned on the mounting stud for surrounding the mounting stud. The ring-shaped lug includes one or a plurality of interior channels extending around the inside diameter thereof. A contact spring is seated within a respective interior channel and is electrically conductive and dimensioned to extend radially inwardly from the channel and contact the mounting stud when the ring-shaped lug is positioned thereon. The contact spring is configured to at least partially collapse in the radial direction and to provide a spring bias against the mounting stud for providing an electrical connection between the ring-shaped lug and mounting stud. A locking cap is positioned on the mounting stud over the at least one ring-shaped lug for locking with the mounting stud and securing the ring-shaped lugs on the mounting stud for a secure electrical connection.

A conductive fastening mechanism including a nut connected to an energy load module and electrically connected to a power supply through a power switch S0; an anti-rotating seat located above the nut; a conducting element arranged in the anti-rotating seat and electrically connected to a load; a connecting piece penetrating the anti-rotating seat and the conducting element and selectively connected to the nut, used for on-off between the load and the power supply; a handle rotatably arranged on the connecting piece, where the handle is configured to be selectively clamped in the anti-rotating seat to limit the connecting piece. The handle is rotatably arranged on the connecting piece and can be selectively clamped on the anti-rotating seat, such that the handle plays a role in preventing the connecting piece from rotating, so as to achieve the purpose of anti-vibration and anti-loosening, prevent damage and other safety accidents, and improve safety.

A terminal connection structure for a rotary machine which electrically connects the rotary machine and a terminal block of a power control unit, comprises a terminal including a layered portion connected to a winding of the rotary machine and formed by layering at least a first conductor portion and a second conductor portion; and a fastening member fastening the terminal and the terminal block of the power control unit.

A contact device includes a housing having a housing interior, a screw having a screw head and a shaft connected to the screw head, the shaft extending along a screw axis and having a first thread, a screw locking device connecting the screw head to the housing by a force-based and/or an interlocking engagement, and a first contact element for contacting a second contact element of a further contact device. The first contact element and the screw are arranged in the housing interior.

A battery pack includes two or more submodules, each submodule having a plurality of unit cells, and each unit cell having an electrode assembly and an electrode lead protruding from the electrode assembly. A pack case receives the submodules, a busbar assembly including a busbar configured to electrically connect the electrode leads of the submodules to each other and a busbar frame connected to the busbar, a connection busbar configured to connect the submodules to each other, and a terminal unit constituted by a cluster of electrode leads electrically connected to each other via the busbar. The terminal unit is connected to the connection busbar, and a blocking structure is configured to wrap the terminal unit, the busbar assembly, the upper end and the side surface of the connection busbar at the portion thereof connected to the terminal unit.

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.

Apparatus for opposed terminals of an electrical device includes magnetic material carried by a cover formed of an electrically insulative material and concurrently covering the terminals, and a magnetic attraction between the magnetic material and the terminals magnetically coupling the cover to the terminals. In another embodiment, the apparatus includes covers formed of an electrically insulative material and connected by hinges to the electrical device for movement between open positions away from the terminals and closed positions covering the respective terminals.

A connector includes: a rod-shaped terminal; and a housing having a terminal accommodating chamber configured to accommodate the terminal. The terminal has: a rotation restricting portion configured to engage with an inner wall of the terminal accommodating chamber to restrict rotation of the terminal about an axis of the terminal; a contact configured to be electrically connected to a counterpart terminal; and a hole configured to allow a bolt to be screwed into the hole about the axis. The housing has: a holding portion that holds the terminal inside the terminal accommodating chamber; and an opening configured to expose the hole of the terminal to an outside of the terminal accommodating chamber. The connector is configured to have a gap between the inner wall of the terminal accommodating chamber and the terminal, the gap increasing from the rotation restricting portion of the terminal toward the opening of the housing.

There is provided an electric connection part including: a nut made of a metal, the nut being used for fixing a conductor; and a housing made of a resin, the housing having a press-fit groove into which the nut is press-fitted. The housing includes: a rib that protrudes from an inner side surface of the press-fit groove and extends along a press-fitting direction in which the nut is press-fitted into the press-fit groove, such that the rib presses the nut to be in contact with the nut; and a recess that is disposed on an extension line in which the rib extends, the recess being recessed in the press-fitting direction.