Abstract: The present invention relates to gas-insulated electrical apparatuses, in particular gas-insulated transformers or reactors, comprising a housing enclosing an interior space, in which an electrical component comprising a winding is arranged, at least a portion of the interior space defining an insulation space which is filled with an insulation fluid electrically insulating at least a part of the electrical component from the housing. According to the invention, the electrical apparatus further comprises a cooling element comprising a condenser, an evaporator and a cooling fluid to be circulated between the condenser and the evaporator. The evaporator is designed such that at least a part of the electric component is immersed in the cooling fluid in its liquid state, thus being in direct contact with the cooling fluid.

Abstract: A winding-type coil component includes a first wire and a second wire having a twisted wire portion where the first wire and the second wire are twisted together. Switching positions of the first wire and the second wire in the twisted wire portion are shifted in a circumferential direction of a winding core portion every turn.

Abstract: In case of using multi-contacts or flat braided wires for constituting a current carrying structure of a movable part in a vacuum relay, problems tend to appear, which are enlargement of a control mechanism, complication, increased operation force and the like. The vacuum relay 1 includes an insulating cylinder 2, a first relay connecting portion 4 that is connected to one open end of the insulating cylinder 2 and has on its inner surface a first contact 3, a second relay connecting portion 5 that is arranged in the insulating cylinder 2 to face the first relay connecting portion 4, a movable member 7 that is movably arranged between the first and second relay connecting portions 4 and 5 and has a second contact that is brought into contact with the first contact when the movable member is moved toward the first relay connecting portion, and a control mechanism 8 that moves the movable member 7 in both directions to establish and break the contact between the two contacts.

Abstract: A coil electronic component includes a magnetic body that includes a substrate and a coil part. The coil part includes patterned insulating films disposed on a surface of the substrate and a plating layer formed between the patterned insulating films by plating and having a thickness greater than or equal to its width measured parallel to the surface of the substrate. The plating layer may be formed in a single plating operation, and may have a thickness of 200 ?m or more.

Abstract: An electromagnetic actuator in which magnetic force from a permanent magnet causes a stator core and a first plunger to attract each other, and electromagnetic force generated by energizing an electromagnetic coil causes a mover to resist against the magnetic force from the permanent magnet to move in an axial direction separating from a front end portion of the stator core, wherein a ring member provided on the mover is inserted in the axial direction into a hole portion provided in a bottom wall member of a yoke, and an overlap size between the ring member and the bottom wall member is increased when the mover moves relative to the stator core in a separating direction, so that a magnetism transmission quantity from the permanent magnet passing through an overlap portion between the ring member and the bottom wall member is inhibited from being reduced.

Abstract: A switching assembly is for an electrical switching apparatus of a switching system. The electrical switching apparatus includes a base. The switching system has a communication device. The switching assembly includes a number of contact assemblies coupled to the base, each of the contact assemblies having a stationary contact and a movable contact structured to move between a CLOSED position corresponding to engagement with the stationary contact, and an OPEN position corresponding to disengagement with the stationary contact; and a transfer assembly including an element and only one single actuator coupled to the element, the element being structured to be coupled to the base, the single actuator comprising a controller for receiving a signal from the communication device. The single actuator is structured to move the movable contact of each of the number of contact assemblies between the CLOSED position and the OPEN position.

Abstract: There is provided an insulation paper to be disposed between a slot formed in a stator core and a coil inserted into the slot. A crease is provided in advance at a folding position where the insulation paper is to be folded when disposed in the slot. The crease is provided in an area of the insulation paper excluding both end portions thereof.

Abstract: A DC motor is provided for use in a starter that starts an ermine. The DC motor includes a commutator and a brush. The commutator is formed of copper or a copper alloy whose copper percentage content is higher than or equal to 99 mass %. The brush is arranged in sliding contact with a surface of the commutator. Moreover, the brush is formed of a sintered compact that contains graphite, copper and at least one metal sulfide solid lubricant. The percentage content of copper in the sintered compact is 30-70 mass %. The at least one metal sulfide solid lubricant includes tungsten disulfide. The percentage content of tungsten disulfide in the sintered compact is higher than or equal to 6.5 mass %.

Abstract: A stator of the present invention includes: a stator core; a front housing which is arranged on a front end portion side of the stator core; and a back housing which is arranged on a back end portion side of the stator core, where the stator further includes: a first sealant which is individually provided between the stator core and the front housing and between the stator core and the back housing; and a second sealant which is provided so as to coat the outer side of the stator core in a radial direction with the first sealant, and the first sealant and the second sealant are formed of the same curable resin integrally with each other. A motor of the present invention includes the stator and a rotor which is supported on the inner side of the stator such that the stator can be rotated with respect to the stator.

Abstract: A stator of a rotary electric machine comprises: a stator core including multiple slots; multiple coils formed using a winding wound in a distributed fashion so as to pass through the slots; and multiple power lines connected to the coils. The coils have a coil end projecting from an end surface of the stator core. The coils are adjacent to each other in the peripheral direction. A connection between each of the coils and a corresponding one of the power lines is arranged adjacent to a base portion of the coil end on the outer periphery. Each of the power lines starts from the connection to extend along the outer periphery of the coil end to be adjacent to the base portion of the coil end on the outer periphery while extending outwardly in the axis direction from between the coils adjacent to each other in the peripheral direction.

Abstract: An axial flux motor having a stator and a rotor disposed about a rotational axis adjacent the stator defining an air gap therebetween. The rotor includes a disk having an interior face oriented toward the stator and an opposite exterior face; a plurality of magnets affixed in a predetermined arrangement on the interior face of the disk; a back plate abutting the exterior face of the disk, and a segmented cage fitted onto the interior face. The back plate includes a circumferential edge surface defining a plurality of notches. The segmented cage includes a plurality of retainer ribs configured to retain the magnets in the predetermined arrangement on the interior face of the disk. The segmented cage cooperates with the back plate to structurally support the disk therebetween, thereby inhibiting the disk from flexing in an axial direction.

Abstract: The invention relates to a rotary electrical machine (100) with an integral magnetic sensor (101) of the angular position of the rotor (150). The sensor includes a rotary part (108) with magnet (102) fixed to the end (160b) of the rotation shaft (160) at the rear of the machine, facing a fixed part (103) including Hall effect sensors and mounted on a fixed support (106) connected to the frame of the machine. The machine includes a bearing (104) centered on the axis (X), separating the rotary and fixed parts of the sensor. This bearing, fixed to the shaft and to the metal support of the fixed part of the sensor, and preferably in contact with the rotary part, constitutes a new mechanical reference close to the sensor. The invention provides accurate and robust position information independently of mechanical and magnetic disturbances to which the shaft may be subjected.

Abstract: A solenoid is provided having an improved connection arrangement. The solenoid includes external wires that are coupled to internal solenoid components via terminals. Further, a sealed solenoid is provided having a housing overmolded onto a solenoid subassembly. External wires can be coupled to the solenoid after overmolding. The solenoid may also include a cavity for receiving at least one of electrical component. The solenoid may also include a powdered metal core.

Abstract: A ceramic core, which is made of a ferrite material including Ni and Zn, includes an axial core extending in a length direction and a pair of flange portions disposed at both ends of the axial core in the length direction. The dimension L of the ceramic core in the length direction satisfies 0 mm<L?1.1 mm. The surface roughness of a ridge portion of the axial core is less than or equal to 2.5 ?m.

Abstract: An inductor includes a body having a first magnetic portion above and below a coil, and a second magnetic portion above and below the first magnetic portion. The magnetic flux density of the magnetic substance in the first magnetic portion is higher than that of the magnetic substance in the second magnetic portion.

Abstract: A solenoid for a motor vehicle starter includes at least one coil wound on at least one spool, the at least one coil defines a toroidal space encircling the at least one coil. A stop member is positioned adjacent to the at least one spool. A diode holder is positioned in the toroidal space defined by the at least one coil, and a diode is positioned in the diode holder. The diode includes a cylindrical body, a first lead extending from a first end of the cylindrical body, and a second lead extending from a second end of the cylindrical body. The cylindrical body of the diode is retained by the diode holder within the toroidal space, and the first lead of the diode extends out of the toroidal space and is electrically connected to the stop member.

Abstract: A motor includes a rotor having a shaft, a stator provided so as to surround the rotor, a first bearing and a second bearing rotatably supporting the shaft and disposed at a distance from each other in an axial direction of the shaft, a molded resin part covering the stator and having a bearing support part supporting the first bearing, a bracket attached to the molded resin part, supporting the second bearing, and having conductivity, and a conductive member provided in contact with both of the bearing support and the bracket.

Abstract: A coil electrode component includes a body including magnetic metal material, a coil disposed in the body and having first and second lead parts respectively outwardly exposed through first and second surfaces of the body. A first plating electrode is formed on the first surface of the body and a further surface of the body connected to and extended from the first surface of the body, and connected to the first lead part. A second plating electrode is formed on the second surface of the body and a further surface of the body connected to and extended from the second surface of the body, and connected to the second lead part.

Abstract: A structure comprises a first portion of a winding having a first almost enclosed shape, a second portion of the winding having a second almost enclosed shape and a connection element between the first portion and the second portion, wherein the first portion and the second portion are arranged in a symmetrical manner and the first portion, the second portion and the connection element form a first air core inductor.

Abstract: The present invention discloses a stiffness-adjustable electromagnetic spring. The spring includes a central shaft, an intermediate electromagnetic force control component, and two end electromagnetic force control components, where the two end electromagnetic force control components are located on both sides of the intermediate electromagnetic force control component, the two end electromagnetic force control components and the intermediate electromagnetic force control component are both sleeved on the central shaft, and the intermediate electromagnetic force control component is coaxial with the two end electromagnetic force control components. The stiffness of the electromagnetic spring can be controlled online and the nonlinearity can be adjusted.