Abstract: A system for pulling wire behind a wall is provided. One embodiment comprises a cylindrical weight defined by an outside diameter and a first length, and a tubular body with a hollow cavity defined by an inside diameter that is greater than the outside diameter of the cylindrical weight and a second length that is greater than the first length. A distal end of the tubular body includes a tip configured to penetrate a material that is behind the wall, wherein when oriented in a vertical position behind the wall, and wherein in response to drawing the cylindrical weight upward through the tubular body and then releasing the cylindrical weight, the cylindrical weight travels downward towards the distal end of the tubular body and impacts the tip such that momentum of the downward travelling cylindrical weight is transferred to the tip, thereby driving the tubular body downward through the material.

Abstract: An avionics unit assembly for an aircraft can include an avionics unit (e.g., an underwater locator device, “ULD”), and a battery to power the avionics unit. The avionics unit assembly can further include a housing that encases the avionics unit and the battery. The housing includes a vent port for exhausting an emission from the housing during a failure of the avionics unit. The avionics unit assembly can further include one or more of a suppressor that filters the emission, a shield element that is resistant to chemical and/or thermal effects of the emission, and a bracket for mounting the avionics unit to a surface. A method integrating the avionics unit assembly onto a forward aircraft bulkhead at a mount location under an aircraft radome and for manufacturing the avionics unit, and an aircraft including the avionics unit are also described.

Abstract: A ribbon cable is described, including a first insulative layer extending along a length and a width of the cable, and a plurality of spaced apart substantially parallel conductors extending along the length of the cable. The insulative layer has opposing top and bottom major surfaces and defines a plurality of spaced apart cavities extending between the top and bottom major surfaces of the first insulative layer. The top major surface of the first insulative layer is deformed in a plurality of spaced apart substantially parallel regions extending along the length, and arranged along the width, of the cable. Each deformed region has a shape of a groove and includes a deformed portion of at least one cavity in the plurality of cavities. Each conductor is disposed within a corresponding deformed region of the insulative layer.

Abstract: A power distribution box assembly includes a lower cover and a connector assembly. The connector assembly includes a connector housing and a dress cover. A wire bundle is routed from the connector housing through an opening of the lower cover. A retention feature is provided to prevent a cantilevered force generated by a bend in the wire bundle from dislodging the connector assembly out of position with respect to the lower cover.

Abstract: The present application provides a circuit material and a circuit board containing the same. The circuit material comprises a conductive metal layer and a dielectric substrate layer, and an adhesive layer arranged therebetween, wherein the adhesive layer is made of a material which comprises an adhesive composition comprising a resin component and a non-resin component, wherein the resin component is composed of unsaturated polyphenylene ether resin, SBS resin and maleimide resin; and the non-resin component comprises an initiator; and the adhesive layer is obtained by applying the adhesive composition dissolved in a solvent onto the surface of the conductive metal layer or the dielectric substrate layer in the form of a solution, or by applying to a release material and removing the release material after partially curing or completely curing.

Abstract: A fluororesin material including a melt-fabricable fluororesin, the fluororesin material having a dielectric constant of 2.1 or less and a dielectric loss tangent of 0.00030 or less at 12 GHz. Also disclosed is a fluororesin material for high-frequency transmission including the fluororesin material and a coated electric wire for high-frequency transmission including a solid insulating coating layer made of the fluororesin material.

Abstract: An insulator for electrically insulating an electrical conductor. The insulator includes a roll defining a central longitudinal through hole along a longitudinal axis of the insulator. The through hole is arranged for allowing an electrical conductor to pass there through. The insulator also includes at least one shed arranged on an outer surface of the roll. The shed includes a shed tip having an outer non-flat curvature defined by a plurality of different radii of curvature and including a most distal point of the shed. An end radius of curvature at the most distal point of the curvature is larger than a first radius of curvature at one side of the most distal point and a second radius of curvature at the other side of the most distal point.

Abstract: A shielded electrical ribbon cable includes adjacent first and second longitudinal conductor sets where each conductor set includes two or more insulated conductors. The first conductor set also includes a ground conductor that generally lies in the plane of the insulated conductors of the first conductor set. At least 90% of the periphery of each conductor set is encompassed by a shielding film. First and second non-conductive polymeric films are disposed on opposite sides of the cable and form cover portions substantially surrounding each conductor set, and pinched portions on each side of each conductor set. When the cable is laid flat, the distance between the center of the ground conductor of the first conductor set and the center of the nearest insulated conductor of the second conductor set is ?1, the center-to-center spacing of the insulated conductors of the second conductor set is ?2, and ?1/?2 is greater than 0.7.

Abstract: The disclosure relates to capacitive heatsink devices and systems. In one embodiment, the heat sink capacitor includes a positive (P) bus plate; a negative (N) bus plate; a first dielectric material; a second dielectric material; and a heat sink comprising a first side and a second side, the first side of the heat sink attached to the first dielectric material and the second dielectric material, wherein the first dielectric material and the second dielectric material are separated by a portion of the heat sink, wherein the first dielectric material electrically insulates the P bus plate from the first side of the heat sink to form a first capacitor, and wherein the second dielectric material electrically insulates the N bus plate from the first side of the heat sink to form a second capacitor.

Abstract: The invention relates to a cable sealing device comprising: a first plate having a group of first holes and configured to be mounted to a first side of a housing wall; a second plate having a group of second holes and configured to be mounted to a second side of a housing wall; and a soft elastic sealing element configured to be mounted between one of the first and second plates and the housing wall. The group of first holes and the group of second holes and the sealing element are configured to receive a group of cables, and the first and the second plate can be biased toward each other, so that the sealing element can be pressed and elastically deformed. The sealing element can seal and fix the group of cables in the housing wall in a pressed and elastically deformed status. The invention also relates to a cable sealing system comprising a housing wall and the cable sealing device. The cable sealing device is simple in structure and easy to assemble, and can ensure good sealing and fixing of the cables.

Abstract: A power electronic assembly includes a board having metal layers laminated onto or between electrically insulating layers, and a laminate inlay embedded in the board. A first metal layer provides electrical contacts at a first side of the board. A second metal layer provides a thermal contact at a second side of the board. A third metal layer is positioned between the first metal layer and the laminate inlay and configured to distribute a load current switched by the laminate inlay. A fourth metal layer is positioned between the second metal layer and the laminate inlay and configured as a primary thermal conduction path for heat generated by the laminate inlay during switching of the load current. A first electrically insulating layer separates the fourth metal layer from the second metal layer so that the fourth metal layer is electrically isolated from but thermally connected to the second metal layer.

Abstract: The present disclosure describes an assembly adapted for mitigating dry band arcing on power distribution line insulators. The assembly includes a polymeric insulator for power distribution line having a core, two end fittings affixed to opposing ends of the core, and a housing circumferentially surrounding the core. The housing including an upper end section and a lower end section each overlapping a respective end fitting, and a series of axially spaced apart annular sheds projecting radially outwardly from an outer surface of the housing. The device further includes a cover having a main body including a sidewall and a top wall, the sidewall and the top wall together define a cavity. A lower edge of the sidewall defines a lower opening and the top wall includes an upper opening, both the lower and upper openings being in communication with the cavity.

Abstract: A conductor shielding termination assembly can include a housing tube defining an inner diameter housing channel therethrough and having housing threads on an outer diameter thereof. The housing tube can be made of conductive material. The assembly can include a shoulder bushing configured to insert within the inner diameter housing channel of the housing tube. The shoulder bushing can define an inner diameter bushing channel sized to receive an unshielded portion of a conductor. The assembly can include a jam nut comprising a nut inner diameter channel sized to receive a shielded portion of the conductor and nut threads on an inner diameter thereof configured to mesh with the housing threads. The jam nut and housing tube can be configured to trap a shielding termination within the meshed housing threads and jam nut threads.

Abstract: A cable includes a first metal conductor, a first insulator, a second metal conductor and a second insulator. The first insulator is at least partially wrapped on the first metal conductor. The second insulator is at least partially wrapped on the second metal conductor. The first metal conductor is adapted to transmit a first signal. The second metal conductor is adapted to transmit a second signal. The cable also includes an intermediate layer material at least partially wound on the first insulator and the second insulator. A dielectric constant of the intermediate layer material is lower than that of the first insulator, and the dielectric constant of the intermediate layer material is lower than that of the second insulator. With this arrangement, the cable of the present disclosure is capable of realizing low mode conversion and improving the high frequency characteristics.

Abstract: An electrical conductor assembly for use in a power distribution assembly includes an electrical conductor. A casing covers at least a portion of the electrical conductor. The casing insulates the at least a portion of the electrical conductor.

Abstract: An inductor component includes a component body having a mounting surface and a top surface and provided therein with a spiral inductor wiring line advancing in the extending direction of a winding center axis. The inductor wiring line is connected to a first external electrode at a first end, and connected to a second external electrode at a second end. The component body includes: a first inclined surface connected to a first end of the mounting surface on a first side in a length direction and inclined toward the top surface as separating from the first end; and a second inclined surface connected to a second end of the mounting surface on a second side in the length direction and inclined toward the top surface as separating from the second end. The winding center axis extends in a direction parallel to the mounting surface and perpendicular to the length direction.

Abstract: A heat exchange assembly includes a plate stack having fin plates and spacer plates interleaved with the fin plates in the plate stack. Each fin plate has fin sides extending between a fin lower edge and a fin upper edge. Each spacer plate has spacer sides extending between a spacer lower edge and a spacer upper edge. The fin upper edges of the fin plates are located above the spacer upper edges. Air flow channels are formed in gaps between the fin plates above the spacer plates. The fin lower edges and the spacer lower edges define a lower thermal interface configured to be in thermal communication with an electrical component to dissipate heat from the electrical component. The fin plates are independently movable relative to the spacer plates in the plate stack to independently articulate the fin lower edges and the spacer lower edges at the lower thermal interface. The heat exchange assembly includes a plate stabilizer structure positioning the fin upper edges relative to each other.

Abstract: A coil component according to one or more embodiments includes a base body having first to sixth surfaces, and a coil conductor including a winding portion that extends around a coil axis intersecting the first and second surfaces. The winding portion includes first, second, third, and fourth portions facing the third, fourth, fifth, and sixth surfaces, respectively when viewed from a direction of the coil axis. The radii of curvature of the first and second portions are both smaller than the radii of curvature of the third and fourth portions. When viewed from the direction of the coil axis, a distance between the first portion and the third surface is larger than a distance between the third portion and the fifth surface.

Abstract: An electrical feed-through apparatus is prevents or substantially reduces partial corona discharges in penetrators for high voltage supply for underwater facilities. A flange of a first thickness has an opening providing a passage between first and second oppositely located sides of the flange. An elongated tube of a solid, electrically insulating material has a first length greater than the first thickness, and is positioned in the passage, with first and second parts of the tube protruding from the first and second sides of the flange, respectively. First and second attachment sleeves are positioned on the tube and are attached to the first and second parts of the tube, respectively, at a distance from respective first and second ends of the tube. The sleeves are attached to the respective first and second oppositely located sides of the flange.

Abstract: Provided herein are semiconductor packages with improved electrical contacts (e.g. pins). In some embodiments, an assembly may include a substrate and an electrical contact coupled to the substrate, the electrical contact consisting of a first component defined by a complex 3D designed receiving pin. The electrical contact may further include a second component defined by another complex 3D designed penetrating pin, wherein the first component engages the second component to deform mechanically and to weld when the first component and the second component are coupled together.