Connector (1) comprising at least one female part (2) and at least one male part (3) engaging in the female part, and locking means (4) preventing any extraction of the male part from the female part, characterized in that the locking means comprise at least one removable locking part (4) arranged as an interface between the male part (3) and the female part (2), and the male and female parts comprise means of retention (24, 35) by mutual cooperation, the mutual disengaging of the retention means being rendered possible only after the withdrawal of the locking part.

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.

Shown is an assembly or securing a printed circuit board to a plug body, having a contact element with a holding face facing against a plugging direction of the contact element, and a securing member, that can be transferred into a securing position, in which the printed circuit board is secured by the securing member in a positive fit manner against the plug direction at the holding face. Further shown is a method of securing a printed circuit board at the plug body, wherein a holding face of a contact element facing against a plug direction is inserted through an opening in the printed circuit board and subsequently a securing member is transferred to a securing position, in which the printed circuit board is secured by the securing member in a positive fit manner against the plug direction at the holding face.

The invention relates to an electric device, especially to an output of a transformer, said output comprises a connecting portion, said connecting portion comprises a connecting rod, which partly inserts into said connecting portion and has an interference fit with said connecting portion, said connecting rod comprises a conductive first column portion that has an interference fit with a busbar, said first column portion axially arranges a conductive second column portion which has an interference fit with said first column portion, said second column portion is located inside of said first column portion, a thermal expansion coefficient of said second column portion is greater than that of said first column portion. Said transformer has such advantageous effects, 1. the same overlapping length increases more conductive surface for reducing a current density to achieve low temperature rising of connecting part; 2. amount of material is reduced and save the social source; 3. the electric clearance or safety distance is increased, an electric safety of device is also increased; 4. a width of a connecting part is reduced, an occupation space of transformer is also reduced.

A conductive pin configured for a quick connection system. The conductive pin has a non-conductive head and a conducting shaft with a conductive shaft bottom contact point. Beneath the head are a plurality of conducting contact arms in a X-configuration, each arm at a right angle to the next and separate to an adjacent conducting contact arm. The conducting shaft has a partial non-conductive sheath below the head. Rotating the conducting contact arms to contact points by rotating the conductive pin completes the circuit in the quick connection system.

A system and method for replaceable machine-mounted male input power connections includes a power connection unit that is at least partially arranged within a housing and configured to transfer power received from a power source to drive a welding process. The power connection unit includes an input configured to receive power from the power source, an output configured to deliver the power received at the input to drive the welding process, and a bus system, configured to connect the input and the output. The power connection unit also includes a male connector having a conductive post extending to a threaded cylindrical shaft. The male conductor forms at least a portion of the input or the output and extends from the housing through a coupling assembly. The coupling assembly includes a correspondingly threaded portion configured to engage the threaded cylindrical shaft of the male connector to the bus system.

A device has a wiring terminal for connecting a busbar, the wiring terminal has a connecting rod, which partly inserts into the wiring terminal and has an interference fit with the wiring terminal, the connecting rod has a conductive first column portion that has an interference fit with the busbar, the first column portion axially arranges a conductive second column portion that has an interference fit with the first column portion, the second column portion is located inside of the first column portion, a thermal expansion coefficient of the second column portion is greater than that of the first column portion, a resistivity of the second column portion is greater than that of the first column portion, a material of the second column portion is an aluminum or an aluminum alloy, and a material of the first column portion is a copper or a copper alloy.

A device includes a body portion and a moveable fastener extension coupled to the body portion. The moveable fastener extension is configured to be inserted in an opening of an electrical ground lug and an opening of an object to be grounded. The device further includes a handle coupled to the moveable fastener extension and configured to be operated by hand to manipulate the moveable fastener extension to secure the electrical ground lug to the object via the device.

A female welding lead connector including a safety cover hingedly connected to a main body of the female welding lead connector. The safety cover preferably includes a fastener for fastening the cover to a closed position, shielding a female welding lead receptacle inside the main body of the female welding lead connector.

The present disclosure relates to a magnetic assembly structure which utilizes a magnetic attraction or repulsion effect generated by two magnetic components to make two buckle structures automatically engaged to each other. The magnetic assembly structure of the present disclosure has a first main body and a second main body, and via the hardware design of disposing magnetic components and buckle structures respectively on the first main body and the second main body, the first and second main bodies rotate in respect to each other due to the magnetic attraction or repulsion effect, so as to efficiently engage the two buckle structures each other. Thus, it actually eases the installation and uninstallation of the appliance to which the magnetic assembly structure is applied, and the costs of installation and consuming time are reduced.