Mitsubishi Electric Corporation

Canon Kabushiki Kaisha

Mitsubishi Denki Kabushiki Kaisha

Nec Corporation

Dipsol Chemicals Co., Ltd.

Other

Mitsubishi Heavy Industries Limited

Ricoh Company, Ltd.

Nippon Steel Corporation

The University of Tokyo

Tokyo Ohka Kogyo Co., Ltd.

Mitsubishi Heavy Industries, Co., Ltd.

Akira Hashimoto

Hironori Tsuiki

Hiroyuki Akita

Atsushi Sakaue

Yuji Nakahara

Manabu Ohno

Masaya Inoue

Tsutomu Kukimoto

Tsuyoshi Takiguchi

Tatsuhiko Chiba

Tatsuro Hino

Yasukazu Ayaki

Michihisa Magome

Hirohide Tanikawa

Satoshi Yoshida

Tatsuya Nakamura

Masashi Nakamura

Wakashi Iida

Nozomu Komatsu

Yojiro Hotta

Yasuyuki Nakanishi

Tetsuya Ida

Yasuhiro Ichikawa

Manabu Inoue

Shinji Nishimura

Akihiro Yamamura

Hiroyuki Fujikawa

Kenji Okado

Yoshinori Kobayashi

Shogo Okamoto

Masanori Ito

Masao Morita

Kazuyuki Yamamoto

Shinji Matsumoto

Kazuto Kobayashi

Toshinori Tanaka

Satoru Akutsu

Kazuya Oda

Junichi Nakagawa

Hiroyuki Yasuda

Yoshinobu Baba

Takeshi Sugiyama

Takayuki Itakura

Koh Ishigami

Takuya Hara

Keiji Komoto

Satoshi Handa

Nobuaki Miyake

Takashi Umeda

Junji Kawada

Yasuki Kimura

Sachiko Kawasaki

Kazuhiko Hayami

Koji Kawamura

Shozo Kaneko

Takeshi Kaburagi

Masao Sato

Ryuichi Takiguchi

Takatoshi Masuda

Shoichiro Nishitani

Kohei Egashira

Eriko Yanase

Yutaka Hirota

Shinkichi Sawa

Naohiro Motoishi

Moriyuki Hazeyama

Takakuni Kobori

Nobuyoshi Sugahara

Wakaki Miyaji

Muneo Nakayama

Masafumi Okazaki

Yasushi Mori

Shinichiro Yoshida

Atsushi Kutami

Susumu Sato

Yoshinori Tsuji

Masami Miura

Toshihiro Nishimura

Kentaro Hayashi

Toshiyuki Ugai

Hidekazu Fumita

Shinichi Okada

Kimishiro Tokuda

Makoto Ohta

Yasuhiro Shinohara

Toshihiko Setoguchi

Takanori Ichikawa

Satoru Hasegawa

Hiroki Shiota

Shuichi Tamura

Manabu Kobayashi

Yuichi Fujioka

Katsuya Tanitsu

Kazuhiro Shono

Hitoshi Sakurai

Koji Tamura

Yutaka Ikura

Manabu Yoshinori

Provided is a segment-core coupled body, including a plurality of segment cores each including a core back and a tooth; and a plurality of coupling portions configured to couple the core backs to one another, wherein the plurality of segment cores and the plurality of coupling portions are each a laminated body of magnetic sheets, wherein the plurality of coupling portions each include: a posture holding portion adjacent to a gap defined between adjacent core backs; a first thin portion configured to couple one corner portion of the adjacent core backs and the posture holding portion; and a second thin portion configured to couple another corner portion of the adjacent core backs and the posture holding portion, and wherein, the posture holding portion projects toward a radially outer side with respect to the adjacent core backs.

Segment-core coupled body and method of manufacturing armature

A stator core of a rotary electric machine includes: an outer core that is an annular back yoke portion; and an inner core in which a plurality of teeth are radially arranged and inner side end portions of the teeth adjacent to each other in a circumferential direction are connected to each other in the circumferential direction by connection portions and which is fitted to an inner side of the outer core, each connection portion has a hole penetrating in an axial direction, each connection portion is split into a plurality of sections by the hole, a width in a radial direction of the one connection portion at a portion of the connection portion that has a smallest width in the radial direction is equal to or greater than &#xbc; and less than &#xbd; of a sheet thickness of each of sheets.

Stator for rotating electric machine, and rotating electric machine

A unit coil includes: first, second, third, and fourth turn portions extending in a bent manner from first, second, third, and fourth slot accommodation portions and each connecting the slot accommodation portions to each other; and first, second, third, and fourth leg portions. Recesses are formed in surfaces opposed to each other at bent parts of the turn portions or bent parts of the turn portion and the leg portion, that extend in a bent manner toward the same side in the circumferential direction from the slot accommodation portions adjacent to each other in the radial direction.

Rotating electric machine and rotating electric machine manufacturing method

An annular conductor retaining device has a retention guide portion formed by blades arranged in a cylindrical shape with gaps therebetween. An annular conductor is inserted into two of the gaps across a plurality of the blades. The next annular conductor is inserted into the gaps to partially overlap the previously arranged annular conductor. This step is repeated so that the annular conductors are arranged in a spiral shape in the retention guide portion. The retention guide portion and the inner circumferential part of the core are fitted to each other, and the gaps and the slots of the core are made to coincide with each other. A pusher is inserted into the inner circumferential part of the retention guide portion so that the annular conductors are caught on the pusher, to move them in the axial direction into the slots of the core, and thus become the coils.

Method for manufacturing armature

A stator is assembled by stacking, in the axial direction, a plurality of magnetic steel sheets having tooth portions. The steel sheets include connected tooth steel sheets in which the inner-circumferential-side end portions of the tooth portions are connected via connection portions in an annular shape along the circumferential direction, and non-connected tooth steel sheets which are separated from each other with the tooth portions not connected to each other. The connected tooth steel sheets and the non-connected tooth steel sheets are joined to each other in the axial direction via swage portions provided in the tooth portions. The thickness of each connection portion is smaller than the thickness of the other part of each steel sheet.

Rotary electric machine including an inner core formed of steel sheets with connected and non-connected tooth portions and manufacturing method therefor

This invention, is concerning a rotary electrical machine, wherein, where Q is the number of a plurality of slots, P is the number of a plurality of magnets, gcd(Q, P) is the greatest common divisor of Q and P, m is the number of phases, and one position group is defined as a set of m positions spaced from each other along the circumferential direction of the armature core by a pitch of an angle of [360/{gcd(Q, p)&#xd7;m}]&#xb0;, an armature core is: formed by connection of a plurality of core pieces at connection positions that are set to positions included in one or more respective position groups from among gcd(Q, P) position groups formed at equal pitch along the circumferential direction of the armature core.

Rotary electrical machine including an armature core

A manufacturing method for a stator winding coil includes: a bulging portion forming step that forms a bulging portion on a conductor wire; a crank portion forming step that forms a crank portion on the central portion of the bulging portion; an oblique portion forming step that forms oblique portions on the conductor wire at two ends of the bulging portion; a rectilinear portion forming step that forms rectilinear portions on the conductor wire at opposite ends of the oblique portions from the bulging portion; and a circular arc forming step that forms the oblique portions into a circular arc shape after forming the rectilinear portions.

Manufacturing method for stator winding coil

Provided is a copper-nickel alloy electroplating apparatus which is capable of stably forming a copper-nickel plated coating on a workpiece with a uniform composition and which enables a plating bath to be used for a long period. The present invention provides a copper-nickel alloy electroplating apparatus (), comprising: a cathode chamber () in which a workpiece () is to be placed; an anode chamber (); an anode () placed in the anode chamber; an electrically conductive diaphragm () placed to separate the cathode chamber and the anode chamber from each other; a cathode chamber oxidation-reduction potential adjusting tank () for adjusting the oxidation-reduction potential of a plating liquid in the cathode chamber; an anode chamber oxidation-reduction potential adjusting tank () for adjusting the oxidation-reduction potential of a plating liquid in the anode chamber; and a power supply unit () that provides an electric current to flow between the workpiece and the anode.

Copper-nickel alloy electroplating device

A stator in which stator coils are formed by a plurality of unit coils arranged so as to be shifted from each other in the circumferential direction and each having: a first slot-accommodated portion; a second slot-accommodated portion; a first terminal wire extending from the first slot-accommodated portion; a second terminal wire extending from the second slot-accommodated portion and shifted from the first terminal wire by one line of a conductive wire; a terminal-side coil end portion; and first and second anti-terminal-side coil end portions, wherein the first terminal wire and the second terminal wire of the respective different unit coils are joined with each other.

Stator formed by winding stator coils, rotary electric machine using said stator, method for manufacturing stator formed by winding stator coils, and method for manufacturing rotary electric machine

A rotating electric machine includes: a stator having an armature core having slots formed between magnetic pole teeth, and a plurality of coils each of which is wound so as to straddle a plurality of the magnetic pole teeth; and a rotor including a plurality of permanent magnets disposed at certain intervals on an outer peripheral surface of the magnetic yoke, and the coils include an armature coil for driving the rotating electric machine and a non-armature coil for magnetizing or demagnetizing the permanent magnets of the rotor.

Rotating electric machine, elevator hoist, and method for magnetizing and demagnetizing permanent magnet of rotating electric machine

A contour line on the outer circumferential side of each magnet hole in the first layer is formed to be an arc passing through a total of three intersections, i.e., an intersection of a d axis and a reference magnetic flux line which is a magnetic flux line as a reference positioned inward by a predetermined number of magnetic flux lines from the outer circumferential edge of a rotor core, and intersections of: the reference magnetic flux line; and sides at the circumferential ends of the magnet hole which are positioned inward by a bridge dimension from the outer circumferential edge of the rotor core. Thus, a rotary electric machine that enables maximum utilization of reluctance torque and magnet torque and suppression of torque ripple can be obtained with simple processing and low cost.

Rotary electric machine

An iron core member has: first divided yoke portions; second divided yoke portions alternately arranged with the first divided yoke portions; a first tooth portion extending from one circumferential end of each first divided yoke portion, a second tooth portion extending from the other circumferential end; a third tooth portion extending from one circumferential end of the second divided yoke portion on the second tooth portion side, and a fourth tooth portion extending from the other circumferential end. A tooth end portion of the first tooth portion and a tooth end portion of the adjacent fourth tooth portion are integrally joined at a first tooth end joint portion, and a tooth end portion of the second tooth portion and a tooth end portion of the adjacent third tooth portion are integrally joined at a second tooth end joint portion, thereby providing one continuous sheet of the core member.

Iron core member with divided yoke and tooth portions with V-shaped end joint portions

The purpose of the present invention is to provide an electrical Al plating bath that poses little danger of exploding or igniting as a result of contacting air or water, and contains no benzene, toluene, xylene, naphthalene, or 1,3,5-trimethylbenzene, which have detrimental effects to humans. The present invention provides an electrical aluminum or aluminum alloy fused salt plating bath that is obtained by heat treatment of an electrical aluminum or aluminum alloy fused salt plating bath containing (A) a halogenated aluminum as the primary component and (B) at least one other type of halide after adding (C) one, two or more reducible compounds selected from the group consisting of hydrides of elements in Group 1 Periods 2 through 6 of the Periodic Table of Elements and/or hydrides of Group 13 Periods 2 through 6 of the Periodic Table of Elements and amine borane compounds.

Aluminum or aluminum alloy molten salt electroplating bath having good throwing power, electroplating method using the bath, and pretreatment method of the bath

Winding bodies are configured such that radially inner terminals of a conductor wire extend outward at a first axial end of an armature core from a radially innermost position inside slots, and radially outer terminals of the conductor wire extend outward at the first axial end of the armature core from a radially outermost position inside the slots, and respective phase windings of an armature winding are configured by directly joining together the radially inner terminals and by directly joining together the radially outer terminals of the winding bodies that constitute identical phases.

The armature winding is configured by mounting into slot pairs n types of winding bodies that are each configured by winding a conductor wire for m turns into a helical shape, where m is a natural number that is greater than or equal to two, the n types of winding bodies have different spacings between rectilinear portions that are linked by coil ends, are housed in n adjacent pairs of slot pairs, and are configured so as to be concentric, the coil ends include a top portion at an approximately central portion, and the radial displacement at the top portion is approximately a&#xd7;d, where a is a natural number that is greater than or equal to 1 and less than or equal to (m&#x2212;1), and d is a radial thickness of the rectilinear portions that are housed inside the slots.

Growing community of inventors

Tokyo, Japan

Akira Hashimoto