Mitsui High-Tec Incorporated

Other

Toyota Jidosha Kabushiki Kaisha

Kabushiki Kaisha Yaskawa Denki

Iwao Myojin

Akira Nagai

Masafumi Sakuma

Yusuke Hasuo

Tomokazu Hayashi

Akinori Hoshino

Hiroyuki Yamamoto

Yusuke Eto

Haruji Suzuki

Hayato Nakayama

Yasuyuki Asai

Manabu Takahashi

Hiroo Yoshikawa

Chisato Kato

Hirotoshi Mabu

Satoshi Matsubayashi

Mikio Wada

Hiroshi Tsumagari

Tsutomu Ochi

Hisatomo Ishimatsu

Yukio Matsunaga

Yoshiaki Yamamoto

Koichiro Kawakami

A stator core comprises a stack and a resin portion. The stack comprises an annular yoke portion, a plurality of tooth portions, and a plurality of slots. The resin portion covers an inner wall surface of a slot of the plurality of slots. The resin portion protrudes outward relative to an end surface of the stack in a height direction of the stack. The resin portion is formed on at least a part of an end surface of the tooth portion so as to extend from the inner wall surface of the slot around the end surface of the tooth portion. A resin end portion of the resin portion is disposed on the end surface of the stack and a corner of the resin end portion is formed as an inclined surface including a planar surface or curved surface.

Stacked stator core

A method of manufacturing a stacked stator core comprises forming a stack that comprises an annular yoke portion, a plurality of tooth portions, and a plurality of slots. The method further comprises inserting a mold core member of the plurality of mold core members into a slot of the plurality of slots, the mold core member comprising a body portion and a closing portion connected to the body portion, the body portion extending along a longitudinal direction of the slot and spaced apart from an inner wall surface of the slot, the closing portion being positioned on a slot opening side of the slot and closing an open end portion of the slot on the slot opening side. Additionally, the method comprises forming a resin portion by charging a melted resin into a filling space between the slot and the mold core member.

Method of manufacturing stacked stator core

In a case where a permanent magnet is inserted into each of a plurality of magnet-insert holes of a laminated iron core and then a resin is injected into the plurality of magnet-insert holes from a resin pool pot formed in one of an upper die and a lower die with the laminated iron core pinched and the resin is cured inside the plurality of magnet-insert holes to fix the permanent magnets to the laminated iron core, a dummy plate which abuts on the laminated iron core and includes a gate hole for allowing passage of the resin delivered from the resin pool pot and guiding the resin to the plurality of magnet-insert holes. The gate hole partially overlaps with at least two of the plurality of magnet-insert holes in a plan view of the dummy plate and the laminated iron core.

Dummy plate and method for manufacturing armature

A method for manufacturing a laminated rotor core comprises a first step of positioning and mounting a laminated core bodyon a mounting tableof a carrying tray, a second step of positioning and arranging the laminated core bodymounted on a mounting tableon a lower die, the laminated core bodyhaving permanent magnetsinserted into respective magnet insertion holesand, and clamping the laminated core bodymounted on the mounting tableby an upper dieand a lower die, and a third step of pushing resin out of resin reservoir potsprovided in the lower dieand filling the respective corresponding magnet insertion holesandof the laminated core bodywith the resin through resin passagesformed in the mounting table

Method for manufacturing laminated rotor core

A production method for the laminated iron core includes a first process that segment iron core pieces which respectively have circular arc angles obtained by dividing 360&#xb0; as an angle of circumference into m are separated from a belt shaped iron core material and mounted on a mount base, the segment iron core pieces are carried to a laminating position of a rotary laminating mechanism by a pusher and the rotary laminating mechanism including the carried segment iron core piece therein is rotated by 360&#xb0;/m and a second process that the first process is repeated to form an annularly connected iron core piece in which the segment iron core pieces are annularly arranged. The second process is repeated to form a caulked and laminated iron core having a prescribed thickness. During the second process, the segment iron core pieces are caulked and laminated in the rotary laminating mechanism.

Production method for laminated iron core

There is provided a manufacturing method of a laminated iron core which is formed of a strip-shaped iron core piece. The strip-shaped iron core piece includes segment iron core pieces connected through a joint positioned in a radial outside, and each of the segment iron core pieces has an artuate shape. The joint by which adjacent segment iron core pieces are connected is folded and lateral ends of the adjacent segment iron core pieces are aligned. The strip-shaped iron core piece is spirally wound while circumferentially shifting mutual joints formed on vertical adjacent layers. Crush processing is performed for flattening a bulged portion in a thickness direction of the segment iron core pieces formed at a time of folding the joint, and the crush processing is performed simultaneously with a time when or after mutual segment iron core pieces arranged vertically are crimped and laminated.

Manufacturing method of laminated iron core

A laminated coreincluding a plurality of segment core sheetsspirally wound and laminated in layers while connecting portionsconnecting the adjacent segment core sheetsare bent, ends of the segment core sheetsare aligned with each other and the connecting portionsin the adjacent layers are circumferentially displaced relative to each other, the connecting portionslocated in outer peripheral areasof the segment core sheets, the laminated corecomprising:

Laminated core and method for manufacturing the same

Permanent-magnet holding projections provided at end portions of adjacent segment core pieces that face each other have connecting portions at the centers of the permanent-magnet holding projections. Permanent-magnet holding projections included in the segment core pieces that are on either side of the permanent-magnet holding projections having the connecting portions in a thickness direction are provided with receiving portions for receiving bulging portions that bulge in the thickness direction when the connecting portions are bent.

Rotating electrical machine

A laminated core () and a method for manufacturing the same formed with multiple continuous segment core pieces () wound in a spiral form by bending connecting portions () mutually connecting the segment core pieces (), the connecting portions () being formed in an outer peripheral area (), while the connecting portions () of vertically adjacent layers being displaced in a circumferential direction with inner edges or outer edges of the segment core pieces () fitted, the laminated core comprising: a concave cutout () provided in a radial exterior of each connecting portion () to dispose a radially expanded portion () within an outer circle of the laminated core (), the radially expanded portion () being formed with each connecting portion () expanding radially outward at the time of bending each connecting portion (); an interior cutout () provided in a radial interior of each connecting portion () to define a bending position of each connecting portion (); and a receptacle () provided in a radial exterior of each segment core piece () to receive an expanded part () formed in the thickness direction at the time of bending each connecting portion ().

A stamping step of forming a plurality of band-shaped core sheets (), () having arc-shaped segment core sheets (), (), the adjacent segment core sheets (), () connected together by narrow-width connecting portions (), () provided therebetween, the segment core sheets (), () having a plurality of pole sections (), (), (), () protruding radially outward; and an annular shape forming step of winding the plurality of band-shaped core sheets (), () in a spiral form while bending the band-shaped core sheets (), () at the connecting portions (), () and superimposing the pole sections (), (), (), () vertically one on another, thereby laminating the band-shaped core sheets (), (); wherein in the stamping step, notches (), () to be positioned in correspondence with the connecting portions (), () bent in the annular shape forming step are formed at radially outward sides of joining portions (), (), the joining portions joining the adjacent pole sections (), (), (), () in the segment core sheets (), () and positioned above and below the bent connecting portions (), ().

Laminated rotor core and method for manufacturing the same

A laminated core () and a method for manufacturing the same, the laminated core () formed with a plurality of continuous segment core sheets () wound and laminated in a spiral form while connecting portions () mutually connecting the adjacent segment core sheets () are bent and side edges of the adjacent segment core sheets () are fitted with each other, the connecting portions () being located in an outer peripheral portion () of the laminated core (), the laminated core () comprising: a concave cutout () provided at a radially outward side of the connecting portion (), the concave cutout () allowing a radial bulge () to be accommodated within an outer circle of the laminated core (), the radial bulge () formed at a radially outward side of the connecting portion () by bending the connecting portion (); and an inward cutout () provided at a radially inward side of the connecting portion (), the inward cutout () defining a bending position of the connecting portion (), wherein the connecting portion () has a narrow radial width and, before being bent, has a radial width in the range of 0.5 to 5 times a thickness of the segment core sheet (). The laminated core () and the method for manufacturing the same are capable of producing a highly-efficient and high-quality product that is free from effects of the swell in the thickness direction of the connecting portion ().

A fuel cell module, wherein slopes of a same angle &#x3b8; relative to a bottom face are formed on both side faces to form a recessed groove in a tapered shape. Since the angle &#x3b8; is provided to the side faces of the recessed groove, the exhaustion of gases from the accumulation of gasses to the outside can be assisted by the side faces with the angle &#x3b8; more than in a case where the side faces of the recessed groove are formed in right angled shapes even if the accumulation of gases is produced between an adhesive agent and the inner surfaces of the recessed groove when first and second separators are joined to each other for modularization by covering the first separator on the second separator. Thus, the accumulation of the gases can be prevented from occurring.

Fuel cell module

A seal structure of a fuel cell includes an interrupted back-up disposed at least one of a connecting gas passage and a connecting coolant passage. The back-up located on one side of a separator and a portion of a seal line located on the other side of the separator are disposed such that the back-up and the portion of the seal line are overlapped with each other in a fuel cell stacking direction. The interrupted back-up may be formed in the seal or in the separator.

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Kitakyushu, Japan

Iwao Myojin