摘要:
A wire bonding method and apparatus implement the flatly thinner plastic deformation for the joint section of a wire, which has a diameter ranging 100-600 &mgr;m, on its feed side, feed out and position the flatly deformed wire joint section to a target joint surface, and join the wire to it by pressing the positioned wire joint section, with vibration being applied, onto the joint surface with a ultrasonic wire bonder. A high-power semiconductor device fabricated based on this scheme has a long life of wire joints.
摘要:
A method for manufacturing an insulated coil for use in an electromotive machine includes an aligning and winding step for forming a coil by aligning and winding a wire coated with insulating material; an insulator forming step for winding or coating an insulator around a slot inserting portion of the coil which is formed in the aligning and winding step and applying an adhesive layer between the insulator and the slot inserting portion; and a shaping step for shaping and fixing the wire and the insulator of the slot inserting portion into a unit through melting by increasing the temperature thereof and thereafter cooling the adhesive layer of the slot inserting portion 12, around which the insulator is wound or coated and applying the adhesive layer therebetween in the insulator forming step, under a restrained condition using a shaping metal mold.
摘要:
A motor having a lap winding structure and a manufacturing method therefor, wherein inserts of two different coils are installed side by side in one slot of a stator in a circumferential direction of the stator. All the coils are inserted in slots in succession. Further, a stator having semi-closed type slots formed by protuberances oriented in different directions, is used to control a reduction in the magnetic flux at the inlet of a slot and also to prevent coils from coming off. In a motor having coils of a plurality of phases for generating a rotating magnetic field at a stator, the contact portion of the coil of the desired phase among the coils of the plurality of phases and a portion rising from a slot toward the axis of a core are aligned and disposed to have a shape which prevents them from interferring with end portions of the coils of other phases.
摘要:
An electric motor, wherein a space factor of a coil in a stator or a rotor is enhanced, and which has a central part core comprising a plurality of laminated electromagnetic steel plates stamped out into a predetermined slot sectional shape and an end part core which is disposed on at least one end part toward a laminating direction of the central part core and a core shape of the end part core is different from the core shape of the central part core.
摘要:
For achieving small-sizing and high efficiency by improving heat radiation of coils, and further for simple-construction to be easily disassembled, thereby being environment-friendly from a view point of recycling, an electric rotating machine comprising: a stator 1a being constructed by inserting coils 10a into slots 11 of a stator core 2a; an outer frame 4 being divided into a plurality thereof, so as to cover periphery of the stator core of said stator; a pair of bearing holder portions 6a and 6b, each having a fitting portion 35a or 35b to be fitted into an inner diameter reference surface 25a at both end portions of said stator and being provided with a bearing 8a or 8b at an axial center portion thereof, and being attached at both sides of said stator core so as to cover coil end portions dropping out at both sides of said stator; a squeezing mechanism (30, 32a, 32b, 6a, 6b) fixing the outer frame at an outer periphery of the stator core, by a wedge function between each of the bearing holder portions and the outer frame due to a squeezing function of attaching the each of said pair of bearing holder portions at both sides of said stator core; and a rotor 3 being formed with an escaping portion for escaping from an outer diameter of a portion opposing to a fitting portion of each of said bearing holder portion, rotatably positioned within said stator core.
摘要:
The present invention is characterized in that a rotary machine attempts to lower the resistance of each coil and realize improvement of efficiency and miniaturization of a motor by shortening the end portion of a coil to be inserted into a stator, and the constitution thereof is that the coil end portion of a stator coil has a shape that a conductor raised and looped back from a slot provided in the core on the rotor side is closer to the end face of the aforementioned core than a conductor raised and looped back in the aforementioned slot on the opposite side of the rotor, and the aforementioned constitution has a stator coil having a loopback shape passing a location other than above the adjacent slot surface.The present invention is also a method for manufacturing a rotary machine characterized in that the coil end portion of a stator coil is held horizontally by a holding member, and the holding member is rotated by finely moving the rotational center from the rotor side to the opposite side of the rotor with the slot insertion portion provided in the core restricted, and the aforementioned coil end portion is formed in the loopback shape.
摘要:
A pick and place unit adapted to hold an article at an article feeding position, elevate the article to a predetermined height, subsequently transport the article in the horizontal direction to a place above an assembling position, let down the article vertically to the assembling position, and release the article, wherein the respective operations of elevation, horizontal movement and let-down can be effected in good order by the output of a single driving device.
摘要:
The rotary machine is composed of the rotor having magnetic poles and the stator having the stator yoke portion constituting the iron core tooth portion wound by the stator winding and the flux flow path of the magnetic poles. The rotor is composed of a metallic material having ferromagnetic parts and non-magnetic parts as a member and has a magnetic barrier area composed of the slit portion for blocking the bypath magnetic path in the periphery of the rotor and the non-magnetic parts. The rotary machine that produced torque can be increased sufficiently and the mechanical strength during high-speed running is improved and an electrical vehicle using it.
摘要:
An amorphous magnetic core is arranged to be obtained by cutting a plurality of amorphous sheets to have a predetermined cut length by a cutter device and supplying the cut sheets to a rectangularly forming device, the sheets being supplied from an uncoiler device including a plurality of reels around which the sheets are wound, by winding the sheets of a predetermined number around a forming mandrel successively to form them into a rectangular shape, thereby forming the magnetic core, and by subjecting the magnetic core to magnetic annealing in an annealing device.
摘要:
An electric wire is wound as coil turns in slots in electric rotating machinery component such as a stator or an armature. The wire as it is supplied from a nozzle or flyer is guided by movable formers into successive layers of coil turns in the slots without forming an unwanted dead space in the slots. The formers are moved in radial increments to provide successive spaces in the slots for allowing the successive coil turn layers to be neatly laid in the spaces.