Hitachi, Ltd.

Hitachi Automotive Systems, Ltd.

Hitachi Car Engineering Co., Ltd.

Shin Onose

Kenichi Nakayama

Toshiaki Ueda

Tomohiro Fukuda

Hisaya Shimizu

Kazuo Ojima

Mitsuaki Mirumachi

Katsuyoshi Terakado

Takeshi Sakai

Shinji Yamazaki

Masamichi Yagai

Masamichi Kase

Hisanobu Kanamaru

Hiroshi Kanazawa

Koji Obata

Katsuhiro Hoshino

Yoshimi Mori

Kenichi Gunji

Yuichiro Baba

Fuminori Ishikawa

Yoshiaki Honda

Keiji Kawahara

Yasuhiko Kimura

Masahiko Honma

Akira Toba

Masami Takano

Manabu Oshida

Yasunori Odakura

Wasei Horioka

Masaki Okamura

Kenji Ishihara

Takehiko Watanabe

Hayato Koguchi

Hiroshi Matahira

Shinya Nakatani

Kenta Hasegawa

Hiroshi Fujimoto

Makoto Matsutate

Katsuya Oonuki

Takeshi Matsumaru

Mitsuaki Izumi

Eiichi Isono

Kohtaro Ikeda

Dai Nakamura

Takashi Oguri

Provided are a rotary-electric-machine stator coil, a rotary-electric-machine stator having the same, and a rotary electric machine having the same, capable of improving a bonding strength and insulation reliability of a conductor bonding portion. A rotary-electric-machine stator coil includes: a conductorhaving a bonding portionbonded to other conductors; and a bonding memberhaving a melting point lower than a melting point of the conductor, wherein a tip of the bonding portion has an alloy layerformed of an alloy of the conductor and the bonding member, and a root of the bonding portion is electrically connected by the bonding member.

Rotary-electric-machine stator coil, rotary-electric-machine stator having the same, and rotary electric machine having the same

Provided is a stator of a rotary electric machine in which a bonding portion of ends of coil segments is formed at a coil end of the stator without being inflated toward the opposite side to a stator core, and the coil end can be minimized in an axial direction. The stator of the rotary electric machine includes a stator core () having a plurality of slots and a coil segment () which is disposed in the stator core to form a stator winding (). The ends of the coil segments are overlapped in the axial direction, and bonded through the bonding portion. The bonding portion is formed in a shape such that the bonding portion is melted and flows down from the end () of the coil segment on the opposite side to the stator core toward the end () of the coil segment on a side near the stator core.

Stator of rotary electric machine

Provided is a stator for a rotating electric machine equipped with a connection terminal having high manufacturability and vibration resistance; also provided is a rotating electric machine equipped with this stator. The stator, which is for a rotating electric machine equipped with a stator coil, is equipped with a connection terminal. The connection terminal has a crimping part to which stator coil input/output coil conductors are connected, and a fastening part which is mechanically connected to an external mechanism, with a melt material arranged on the fastening part. The input/output coil conductors are configured so as to be connected to the connection terminal, with the melt material provided on the crimping part therebetween.

Stator for rotating electric machine, rotating electric machine equipped with same, and manufacturing methods therefor

A rotating electric machine having downsized coil ends is provided. In a rotating electric machine having a statorincluding a stator coreformed with a plurality of slotsrowed in a circumferential direction and a stator coilinserted into the slots of the stator core, and a rotordisposed rotatably with respect to the stator core with a clearance interposed therebetween. The stator coil is formed by a plurality of segment coilsbeing connected, the segment coilsbeing made of a conductor shaped into a rough U-shape and having a rectangular cross-section. The segment coil has at an end a connection portionconnected to another segment coil, the connection portion having a corner portion

Rotating electric machine including a stator with a connection portion having a corner portion and method for manufacturing same

A plating layeris formed on a surface of a battery cover, and a peripheral edge partof a cover caseis arranged on an upper surface of the plating layer. A welding partis formed at a tip part of the peripheral edge part. The welding partincludes a melted partin which the tip of the peripheral edge partis melted, and an elution partflowing from the tip onto the plating layer, and the melted partand the elution partare welded to the plating layerin the upper surface of the plating layer

Welded structure in battery, forming method of the same, secondary battery cell and secondary battery module

An objection of the present invention is to provide a fuel injection valve with a reduced variation in an injection amount and, in order to achieve this object, a method for adjusting stroke, the method being able to correct change in an amount of stroke caused by welding. In the method for adjusting the amount of stroke of a movable member of a fuel injection valve including a nozzle member having a seat face, a nozzle holder member to which the nozzle member is joined by welding, and the movable member having a valve seat portion for coming in contact with the seat face, the amount of stroke of the movable member is adjusted by plastically deforming a deformable portion provided to the nozzle holder member after joining the nozzle member and the nozzle holder member by welding.

Method for adjusting stroke of fuel injection valve, and fuel injection valve

A welded construction according to the present invention has a first metallic member, on one surface of which a projecting portion is formed and on the other surface of which a depressed portion corresponding to the projecting portion is formed, and a second metallic member are welded together at a welded portion which includes a summit portion of the projecting portion; wherein, on at least one of the first metallic member and the second metallic member, on its opposite surface to its surface that faces the other one of the metallic members, a recessed portion is formed that is recessed from its peripheral region towards a region which corresponds to the welded portion.

Welded construction and resistance welding method

A small-sized motor for electric power steering, in which coil connection can be easily performed with space saving, and a method for manufacturing the motor. Multi-phase stator coils assembled in a stator coil are connected per phase by connecting rings at coil ends of the stator coils. A bus bar supplied with electric power from the exterior is stacked onto the connecting rings in the axial direction of the motor and is electrically connected to the connecting rings.

Motor for electric power steering and method for manufacturing the same

The power distribution unit for a rotary electric machine includes a connecting ring unit that connects stator coils of the same phase. The connecting ring unit includes at least one linear conductor integrally formed in a ring-like shape, and the connecting ring unit includes a terminal section integrally formed in the linear conductor. The terminal section is constituted by a hole through which a wiring end of the stator coil is inserted and a protrusion formed in a direction of the hole to which the wiring end of the stator coil is connected. Also disclosed are a rotary electric machine includes the power distribution unit and a method for assembling a rotary electric machine.

Power distribution unit for rotary electric machine with linear conductor connecting ring having terminal section with axially extending hole for connecting stator coil, and method for assembling rotary electric machine

A convex portion which inclines in the direction of the short side is created by press work along the direction of the short side of a terminal, which extends longitudinally, from one end to the other end, and another terminal is pressed onto the convex portion with pressure and bonded together by electric resistance welding. At this time, because the convex portion inclines in the direction of the short side, the convex portion is not deformed and crushed; consequently, it is possible to ensure the area of the contact at which terminals are bonded together.

Terminal connection structure having one terminal with opposed convex and concave portions

A rotary machine having a stator composed of a stator iron core having a plurality of slots formed in the direction of the rotation axis and stator windings inserted into the plurality of slots, wherein the stator windings are composed of a plurality of conductors respectively inserted into the plurality of slots in the direction of the rotation axis and the stator has a connection ring having slots into which the plurality of conductors are inserted in the direction of the rotation axis.

Rotary machine

The invention concerns with connection of a lead from an electrical component of an alternator for a vehicle, and provides a terminal shape suitable for TIG welding (arc welding using a gas shielded non-consumable electrode) without being affected by dimensional accuracy of terminals to be connected to each other. Cross-shaped projections having a larger volume than a welded region of the terminal is provided near the welded region, and weld penetration (welding depth) is controlled based on a difference in heat capacity resulting from the volume difference, or melting is suppressed with promotion of heat radiation. Thus, the welding depth is stabilized without being affected by dimensional accuracy of the terminals including relative positions between them, and an alternator for a vehicle can be provided in which a lead from an electrical component has high connection reliability.

Weld joining portion of a vehicle alternator

A connecting structure in which the electric cable having an insulated coating and the electrically conductive member with non-insulated coating are connected through a connecting terminal having a junction support member by applying an electric current, heating and applying a pressure; and the electric cables having an insulated coating and are connected mutually to one another through a connecting terminal having an electrically conductive member with non-insulated coating and a junction support member by applying an electric current, heating and applying a pressure, and a connecting method in which those connections are established by applying an electric current, applying a heat and applying a pressure, and a rotating electric machinery having that connecting structure and an alternating current generator using this machinery.

Connecting structure and its connecting method, and rotating machinery and alternating current

A highly reliable connection structure of a bundle of more than two coil leading-out wires and a wire bundling terminal is provided by contacting and fixing at least a part of a circumferential surface of each of the coil leading-out wires to an inside wall of the wire bundling terminal. Further, a small size motor and an alternator for a vehicle utilize the connection structure.

Connection structure of a wire bundling terminal and coil leading-out

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Naka, Japan

Shin Onose