Abstract: A push button switch cover capable of enhancing positional accuracy between a cover sheet and dish-shaped metal springs, thereby highly improving keying characteristics and reducing manufacturing cost. The cover sheet is provided on a front surface thereof with key tops and on a rear surface thereof with pressing projections in correspondence to the key tops. The dish-shaped metal springs are each bonded to a respective one of the pressing projections by an elastic adhesive section while keeping an apex of the dish-shaped metal spring abutted against a central portion of the pressing projection.

Abstract: A compact switchgear system employing a number of modular components that plug into their mating interface and are maintained in electrical isolation employing solid insulation in a manner that substantially shields the electrical conducting portions of the assembly from contact with lower voltage portions of the system. The assembly is primarily made up of five modules.

Abstract: A multi-pole breaker assembly (1) and a method for operating distribution systems (51) for primary stations that include said assemblies (1) allow to arrange metallic bays (2) for said assemblies (1) with reduced transversal dimensions, thus realising modular and compact distribution system (51), suitable for transportable solutions, said multi-pole breaker assembly (1) comprising breakers (4a, 4b, 4c) having a respective insulating feedthrough (29) developing along the median axis (A, B, C) thereof, wherein said breakers (4a, 4b, 4c) are arranged thereby the external terminals (30, 31) thereof being arranged onto a rectilinear pathway substantially parallel to the median axis (A, B, C) of said breakers (4a, 4b, 4c), and comprising means for translating (44) said breakers (4a, 4b, 4c) according to a direction having a main component substantially parallel to said median axes (A, B, C) to carry out and remove said line disconnection.

Abstract: A planar magnetic device including a planar conductive winding and planar cooling element is disclosed. The planar cooling element includes a number of cooling layers some of which may have apertures therein to create a passage that accommodates fluid flow. In operation, coolant is pumped through the passage of the planar cooling element to remove heat from the planar magnetic device.

Abstract: To simplify coil production, in particular coils used for high-voltage transformers, a conductor is wound on to a winding form. The conductor comprises a plurality of conductor portions. The conductor portions overlap one another partially and are insulated from one another. A conductor and a winding arrangement can be produce with this method.

Abstract: The electromechanical connector proposed has a switch and an actuator. The switch can be connected by means of contacts to a power supply and has switching magnets with encoded magnetic elements mounted on a carriage. It is fitted in a housing as an enclosed unit. The actuator has actuation magnets with encoded magnetic elements and can be connected to a consumer. The switch can be connected to the actuator, connecting these two devices causing the switching magnets to move, against a restraining force, from an inoperative position to an operating position. The electrical connection between the switch and the actuator is thus established by means of contacts. The ends of the switch and actuator facing each other are fitted with alignment devices designed so that electrical contact between the switch and the actuator can only be made when the contacts are in a particular position with respect to each other.

Abstract: A coil device includes a coil body with a wiring coil wound therearound. The coil body is composed of an insulative core cover with a core received therein. An insulative base is provided with terminals, which the coil body is to be mounted thereon. The core cover includes a planar support portion to be attached to the base, and one of the support portion and the base has, at areas in the vicinity of opposite end portions thereof, engagement grooves, and the other has, at areas in the vicinity of opposite ends thereof, ridges engageable with the engagement grooves. Thus, the support portion can be engaged with the base through a combination of the engagement grooves and the ridges.

Abstract: A surface-mountable magnetic device comprising: (1) a multi-layer circuit containing a plurality of windings disposed in layers thereof, the multi-layer circuit having first and second lateral recesses associated therewith, the first and second lateral recesses intersecting the layers of the multi-layer circuit, (2) a conductive substance disposed within the first and second lateral recesses and electrically coupling selected ones of the plurality of windings and (3) a magnetic core mounted proximate the plurality of windings, the magnetic core adapted to impart a desired magnetic property to the plurality of windings, the device locatable proximate a substantially planar substrate to allow the first and second lateral recesses to act as conductors between the plurality of windings and electrical conductors on the substantially planar substrate, the plurality of windings and the magnetic core substantially free of a surrounding molding material to allow the magnetic device to assume a smaller overall device v

Abstract: The sheet with movable contacts comprises a first sheet formed by an insulating film, the first sheet having a plurality of receptacle holes and with adhesives applied respectively to both sides of the first sheet; a plurality of domed, metallic, movable contacts respectively received in the receptacle holes and having central small holes; and a second sheet formed by an insulating film and affixed onto the first sheet so as to cover upper surfaces of the plural movable contacts, wherein the first sheet has connecting slots formed therein for connecting adjacent such receptacle holes with each other, and each of the receptacle holes is larger than each of the small holes formed in the movable contacts and smaller than an external form of each of the movable contacts.

Abstract: Disclosed is a keybutton-equipped device which has: a board at a predetermined position on which a predetermined number of sensitive element (e.g., a sensor and switch) at a predetermined position is provided; a case in which the board is mounted and a predetermined number of hole is formed at a position corresponding to the sensitive element on the board; and a keypad which is of stretchy material (e.g., rubber and plastic) and is formed like a tubular body to cover and tighten the case. The keypad has a predetermined number of keybutton that is formed on the outer surface of the tubular body and at a position corresponding to the sensitive element on the board and gives an impulse (e.g., a physical impulse such as pressure, voltage, current, static electricity and magnetic force) to the sensitive element on the board through the hole in the case when it is pressed down.

Abstract: The apparatus for cooling a high power electrical transformer and electrical motors uses thermally conductive material interleaved between the turn layers of a high power transformer and iron core laminates to provide a low resistant thermal path to ambient. The strips direct excess heat from within the interior to protrusions outside of the windings (and core) where forced air or thermally conductive potting compound extracts the heat. This technique provides for a significant reduction of weight and volume along with a substantial increase in the power density while operating at a modest elevated temperature above ambient.

Abstract: A female type terminal for a large current, an assembling method of the female type terminal, and a connector housing for the female type terminal are provided, wherein a female type terminal includes: a male type terminal being in a rod-like shape; a female type terminal having a cylindrical terminal body in which the male type terminal is inserted, the terminal body having a large diameter portion at the end thereof; a cylindrical spring contact to be accommodated in the female type terminal and to be put into elastic-contact with the male type terminal; and a cap member having an introductory opening to introduce the male type terminal into the terminal body and having a stopping wall continuing from the introductory opening, the cap member being molded out of synthetic resin, wherein the stopping wall of the cap member is inserted into the large diameter portion and an end surface of the stopping wall abuts against the spring contact accommodated in the terminal body, whereby the spring contact is held in

Abstract: In a terminal structure of a switch which is arranged in a manner that a terminal conductor 14 with a terminal screw drawn from the inner portion of the casing is disposed at every phase in the terminal portion of a casing formed by the three-divided structure of an upper cover 2, an intermediate cover 3 and a lower cover, and wires inserted into the terminal portion from the outside are respectively fastened by the screws to be coupled to the terminal conductors, the terminal conductors of the respective phases are pressed into the terminal fixing grooves 3b formed at the intermediate cover and fixed to the casing in a manner that the left and right side edges of each of the terminal conductors are pressed into the grooves.

Abstract: A vacuum switch having a fixed stationary and moveable contact that functions very much like a conventional vacuum circuit interrupter. In addition, an annular stationary contact is positioned on the opposite side of the moveable contact from the first mentioned stationary contact with the drive rod of the moveable contact slidable within the annular opening of the additional stationary contact. The moveable contact travels between three positions. The first position is in electrical communication with the first mentioned stationary contact, the second position is an intermediate position that opens the circuit, and the third position places the moveable contact in electrical communication with the annular stationary contact. Preferably, one of the stationary contacts is grounded and the moveable contact is connected to the load, so that the switch either connects the power line to the load, opens the circuit in the intermediate position, or grounds the load to facilitate maintenance.

Abstract: A high-leakage planar magnetic component such as an inductor, having a winding structure in which flat winding turns are oriented transverse to the plane of the winding structure, exhibits significantly lower winding losses than components having a stacked arrangement of flat winding turns parallel to the plane of the winding structure. A dense winding structure having such a transverse orientation can readily be made by forming a flat conductor into a coil using conventional wire winding techniques.

Abstract: A high voltage post terminal is accurately located within a support aperture during manufacturing processes by at least one inwardly directed projection to avoid assembly problems caused by sizing the entire aperture itself to locate the terminal with sufficient accuracy. By thus improving the concentricity of the high voltage coil components it is possible to achieve more reliable insulation between components at even relatively small-sized coils used for individual engine plug holes. An especially advantageous range of critical parameters has been discovered as achievable by using this more reliable manufacturing process.

Abstract: A plug connector 10 includes a central grounding plate 13, which is provided between two lateral rows of signal plug contacts 12a. In these rows, grounding plug contacts 12b are positioned to partition the signal plug contacts 12a and to establish electrical contact with the central grounding plate 13. A receptacle connector 30 includes a pair of lateral grounding plates 33, which are positioned outside two lateral rows of signal receptacle contacts 32a. Grounding receptacle contacts 32b are provided at locations which correspond with the locations of the grounding plug contacts 12b and are in electrical connection to the lateral grounding plates 33. This electrical connector assembly has a relatively small number of parts yet prevents crosstalk and reflection of signals effectively.

Abstract: A metal oxide varistor comprises a hollow ceramic body having an opening, a first electrode within the body and having a portion extending through the opening, and a second electrode disposed on the exterior surface of the body. Voltage applied to the electrodes above the device clamping voltage causes the ceramic body to conduct. The geometry of the body, which is optimally a sphere, greatly increases surface area between the electrodes and the ceramic body, and consequently increases the device's current carrying capacity.

Abstract: A modular plug assembly is provided which includes a modular plug body, and an insulation displacement connector (IDC), having a terminal body and a terminal strip. The assembly is formed to engage a wire, including a multi-conductor wire, and be inserted into a modular jack to form an electrical connection between the wire and the modular jack. Any length of wire can be used, and in the preferred embodiment of the invention, the assembly engages the wire in a toolless manner.

Abstract: A circuit breaker movement structure 10 is provided for use with a circuit breaker 12 to move the circuit breaker 12 to be connected with or be disconnected from a circuit breaker connecting apparatus 14. The circuit breaker connection apparatus 10 has slot structure 78 in a rear surface. The movement structure 10 comprises bracket assembly constructed and arranged to engage with a circuit breaker to move the circuit breaker with respect to the connecting apparatus. The bracket assembly has a pair of draw brackets 68 and 70 disposed in spaced relation. Each draw bracket includes hook structure 74 constructed and arranged to engage with associated slot structure 78 of the connecting apparatus, and a detent 80 constructed and arranged to engage a surface 82 of the connecting apparatus 14 in an interference fit when the hook structure 74 is engaged in the slot structure 78.