Ground springs for connector receptacles. The ground springs may protect circuitry in an electronic device from stray voltages when a connector insert is inserted into a connector receptacle housed in the electronic device. One example may have a contacting portion located such that when a connector insert is mated with the connector receptacle, the contacting portion of the ground spring electrically connects to a shield of the connector insert before a ground contact of the connector insert electrically connects to a signal contact on a tongue of the connector receptacle.

A mechanical grounding clamp including a body, having an upper plate defining a threaded hole therethrough and having an outer surface, a lower plate spaced apart from the upper plate and having an inner surface, and a connecting plate connecting the upper plate to the lower plate, a fastener mateable with the threaded hole in the upper plate and having a proximal end and a distal end, the distal end extendable through the threaded hole of the upper plate and toward the inner surface of the lower plate. There may be a nut on the fastener for driving toward the upper plate to secure a grounding conductor to the body.

A mechanical grounding clamp including a body, having an upper plate defining a threaded hole therethrough and having an outer surface, a lower plate spaced apart from the upper plate and having an inner surface, and a connecting plate connecting the upper plate to the lower plate, a fastener mateable with the threaded hole in the upper plate and having a proximal end and a distal end, the distal end extendable through the threaded hole of the upper plate and toward the inner surface of the lower plate. There may be a nut on the fastener for driving toward the upper plate to secure a grounding conductor to the body.

The invention relates to a ground terminal and to a method for discharging electric currents from a rotor part of a vehicle (such as a rail vehicle or the like, that has an axle) to a stationary stator part of the vehicle. The ground terminal includes a retaining device and a terminal element. The retaining device is connected to the stationary stator part of the vehicle in electrically-conductive manner, the terminal element is disposed on and connected to the retaining in electrically-conductive manner. The terminal element is made mostly of graphite and subjected to a contact force by means of a spring device of the retaining device to realize an electrically-conductive sliding contact between a sliding contact surface of the terminal element provided for realizing the sliding contact and a terminal surface of the rotor part. The terminal element has an arc-shaped cross-section at least in portions thereof, an outer surface of the cross-section forming the sliding contact surface at least in sections. The sliding contact surface abuts radially against the terminal surface of the rotor part.

A ground wire connection structure for a motor includes: a frame that has electrical conductivity; a flange that is integrated with the frame on one axial end surface of the frame and has electrical conductivity; a protrusion that is protruded outward from a flange surface of the flange and has a through hole; and a conductive pin that has a press-fit portion press-fitted and fixed into the through hole, a diameter-increased head portion, and a solder cup protruded from the head portion to allow an exposed tip end of a ground wire to be inserted and joined into the inside.

A ground wire connection structure for a motor includes: a frame that has electrical conductivity; a flange that is integrated with the frame on one axial end surface of the frame and has electrical conductivity; a protrusion that is protruded outward from a flange surface of the flange and has a through hole; and a conductive pin that has a press-fit portion press-fitted and fixed into the through hole, a diameter-increased head portion, and a solder cup protruded from the head portion to allow an exposed tip end of a ground wire to be inserted and joined into the inside.

Solar panel grounding lug assemblies and systems are disclosed. The grounding lugs may include a top member having a grounding wire channel and an aperture, a bottom member having an aperture, and a fastener inserted through the apertures. The fastener may couple the top member to the bottom member and secure a grounding wire within the grounding wire channel.

System for electrically grounding a reusable load-supporting surface includes at least two mats and a plurality of substantially planar, removable, electrically-conductive covers. Each cover extends at least partially across the top face of one of the mats without extending over any of the edges thereof and is flexibly coupled to the mat sufficient to allow the mat to flex, expand and contract relative to the cover due to environmental factors and the movement of personnel, vehicles and/or equipment across the load-supporting surface during normal, typical or expected use conditions.

A ground connection structure includes a ground terminal fitting (20) with a bolt hole (28). Resilient locking pieces (29) are formed on an inner peripheral edge of the bolt hole (28) and are locked to an externally threaded portion (13) of a stud bolt (12). A rotation stopping portion (31) is formed on the ground terminal fitting (20) and is locked to a rotation stopping hole (14) of a plate-like ground member (10). A resilient retaining piece (32) is formed on the rotation stopping portion (31) and is configured to restrict separation of the rotation stopping portion (31) from the rotation stopping hole (14) by locking to an edge part of the rotation stopping hole (14).

A ground connection structure includes a ground terminal fitting (20) with a bolt hole (28). Resilient locking pieces (29) are formed on an inner peripheral edge of the bolt hole (28) and are locked to an externally threaded portion (13) of a stud bolt (12). A rotation stopping portion (31) is formed on the ground terminal fitting (20) and is locked to a rotation stopping hole (14) of a plate-like ground member (10). A resilient retaining piece (32) is formed on the rotation stopping portion (31) and is configured to restrict separation of the rotation stopping portion (31) from the rotation stopping hole (14) by locking to an edge part of the rotation stopping hole (14).