Kabushiki Kaisha Yaskawa Denki

Takeshi Inoue

Takeo Suzuki

Akihiko Maemura

Yuto Fukuma

Yosuke Kawazoe

Yasuhiro Miyamoto

Toshio Nagao

Yuuto Fukuma

Tetsuya Itou

This disclosure discloses a motor comprising: a motor main body; and a winding switching unit configured to switch windings of the motor main body; the motor main body including: a motor housing that a first coolant channel is formed inside; and a stator having the windings and fixed to an inner surface of the motor housing, the winding switching unit including: a winding switching housing that a second coolant channel is formed inside and being disposed on an outer surface of the motor housing, and heat-generating components disposed at an outer surface of the winding switching housing and used to switch the windings.

Motor and vehicle

A permanent magnet synchronous rotating electric machine includes a rotor and a stator. The rotor includes a first hole, a second hole, a first magnet, and a second magnet. The second hole is provided on an opposite side with respect to a center line extending along a radial direction of the rotor. The first magnet is provided in the first hole and extends along a first longitudinal axis inclined at a first acute angle with respect to the center line. The second magnet is provided in the second hole and extends along a second longitudinal axis inclined at a second acute angle with respect to the center line. The second acute angle is smaller than the first acute angle.

Permanent magnet synchronous rotating electric machine and rotor core

A rotor includes a rotor core, a first magnet, a second magnet, a first pole partition line, and a second pole partition line. The first and second magnets are provided inside the rotor core and between the first and second pole partition line. The first magnet is closer to the first pole partition line than to the second pole partition line, and the second magnet is closer to the second pole partition line than to the first pole partition line. A distance between the first and second magnets at a position is wider as the position is closer to a circumference portion of the rotor core. The first magnet and the first pole partition line have a first minimum distance therebetween, the second magnet and the second pole partition line have a second minimum distance therebetween, and the first minimum distance is smaller than the second minimum distance.

Rotor, rotating electric machine, vehicle, elevator, fluid machine, and processing machine

An electromagnetic steel plate forming member provides the two magnet holes for inserting therein the two permanent magnets per pole along the V-shape, which are provided in the region of the radial pole pitch lines OP provided in the rotor core at the predetermined pole pitch angle &#x3b8;, one magnet hole is displaced in a direction apart from the center line OC of the pole pitch lines OP, and the other magnet hole is displaced in a direction approaching to the center line OC of the pole pitch lines OP.

Electromagnetic steel plate forming member, electromagnetic steel plate laminator, permanent magnet type synchronous rotating electric machine rotor provided with the same, permanent magnet type synchronous rotating electric machine, and vehicle, elevator, fluid machine, and processing machine using the rotating electric machine

Connectors (), (), (), (), (), and () for electrically connecting lead wires of armature windings () coiled around armature blocks (), (), and () are provided at respective ends of a plurality of the armature blocks (), (), and () such that connections of the armature windings () in the respective armature blocks become parallel connections. The connector pair including the connectors (), () and the connector pair including the connectors (), (), which are provided between the armature blocks, are embodied as in-phase connections. On condition that the number of phases of the armature winding is taken as three and a magnetic pole pitch of a magnetic field is taken as &#x3c4;p, the armature blocks are spaced apart from each other at intervals of &#x2154; &#x3c4;p. As a result, there can be obtained an armature of a linear motor and a linear motor, which can facilitate processing of lead wires of the armature windings and make the operation for assembling the armature blocks efficient and which enable an attempt to increase the thrust of the motor in accordance with an increase in the stroke of the movable element.

Growing community of inventors

Kitakyushu, Japan

Takeshi Inoue