Patents Assigned to Toshiba Industrial Products and Systems Corporation
  • Publication number: 20230327509
    Abstract: An insulator includes a teeth cover portion and a crossover-wire guide portion. The crossover-wire guide portion guides a crossover-wire portion of a coil and an introduction crossover-wire portion of an introduction coil into a terminal connection portion. The crossover-wire guide portion has a guide groove that guides the crossover-wire portion and the introduction crossover-wire portion substantially in a core circumferential direction that is a circumferential direction of the stator core. In a state in which the plurality of the split cores are assembled in a ring shape, the guide groove is formed in a shape that does not coincide with a circular arc of a circle having a center corresponding to a ring center of the assembled split cores.
    Type: Application
    Filed: April 28, 2021
    Publication date: October 12, 2023
    Applicant: Toshiba Industrial Products and Systems Corporation
    Inventors: Takashi ARAKI, Motoyasu MOCHIZUKI, Masaaki MATSUMOTO
  • Publication number: 20230291271
    Abstract: A rotating electric machine cooling frame according to an embodiment includes: a cylindrical frame main body; one cooling-medium inlet provided on the frame main body; one cooling-medium outlet provided on the frame main body; and a plurality of flow-passage lines provided in the frame main body, including a cooling-medium flow passage in communication with the cooling-medium inlet and the cooling-medium outlet.
    Type: Application
    Filed: June 14, 2021
    Publication date: September 14, 2023
    Applicants: Toshiba Industrial Products and Systems Corporation, KAWAMATA SEIKI CO., LTD.
    Inventors: Takashi ARAKI, Toshiaki HIRATE, Motoyasu MOCHIZUKI, Masaaki MATSUMOTO, Ryou TAMURA, Hiroyasu FUKUHARA
  • Publication number: 20230238864
    Abstract: A coil-connecting method according to an embodiment includes: preparing a metal sleeve having a circular shape when viewed from an axial direction; processing the metal sleeve such that the metal sleeve has a non-circular shape when viewed from the axial direction, thereby obtaining a deformed sleeve; inserting a plurality of coils into the deformed sleeve, aligning the plurality of the coils by the deformed sleeve; and swaging the deformed sleeve after the plurality of the coils are inserted into the deformed sleeve, thereby connecting the deformed sleeve and the plurality of the coils together.
    Type: Application
    Filed: May 26, 2021
    Publication date: July 27, 2023
    Applicant: Toshiba Industrial Products and Systems Corporation
    Inventors: Takashi ARAKI, Motoyasu MOCHIZUKI, Masaaki MATSUMOTO
  • Publication number: 20230238848
    Abstract: An insulator according to an embodiment is attached to teeth extending from one side surface in a radial direction of a ring-shaped stator core in the radial direction. The insulator ensures insulation between the teeth and a rectangular wire wound around the teeth with a number of windings. The insulator includes an end-surface cover portion, two side-surface cover portions, a first wall portion, a second wall portion, a protruding-stripe portion, and a recess. The end-surface cover portion covers an end surface of the teeth in an axial direction. The two side-surface cover portions cover both side surfaces of the teeth in a circumferential direction. At one side-surface cover portion of the two side-surface cover portions, a first winding of the rectangular wire is disposed, the rectangular wire is wound around the teeth with a number of windings, and the protruding-stripe portion and the recess are formed.
    Type: Application
    Filed: April 28, 2021
    Publication date: July 27, 2023
    Applicant: Toshiba Industrial Products and Systems Corporation
    Inventors: Takashi ARAKI, Motoyasu MOCHIZUKI, Masaaki MATSUMOTO
  • Publication number: 20230170754
    Abstract: An insulator according to an embodiment includes a teeth cover portion and a crossover-wire guide portion. The crossover-wire guide portion includes a plurality of guide walls, a drawing groove, a drawing path, and a crossover-wire support portion. The plurality of the guide walls separate the crossover-wire portions of the coils and are capable of guiding the crossover-wire portions in the core circumferential direction. The drawing groove penetrates through all of the plurality of the guide walls in the core radial direction. The drawing path is disposed at a position away from the drawing groove in the core circumferential direction. The crossover-wire support portion changes a direction of the crossover-wire portion of the coil drawn out from the drawing groove, to be directed to the drawing path, and supports the crossover-wire portion.
    Type: Application
    Filed: April 28, 2021
    Publication date: June 1, 2023
    Applicant: Toshiba Industrial Products and Systems Corporation
    Inventors: Takashi ARAKI, Motoyasu MOCHIZUKI, Masaaki MATSUMOTO
  • Publication number: 20220355337
    Abstract: An adhesive coating device for coating an inner wall surface of a workpiece provided with holes with an adhesive. A control device automatically executes an operation of applying the adhesive, the operation including positioning of the workpiece, relative positioning of a nozzle that applies the adhesive in a non-contact manner with respect to the workpiece, and moving of the nozzle, in which the adhesive is ejected and applied in an oblique direction from the nozzle to the inner wall surface of the hole, and the angle of the oblique direction is such an angle that the adhesive linearly ejected from the nozzle located outside the hole can be applied to the inner wall surface of the hole with a desired depth without interfering with an opening part of the hole.
    Type: Application
    Filed: March 6, 2020
    Publication date: November 10, 2022
    Applicants: TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPORATION, TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION
    Inventors: Yuji ISHIKAWA, Hiroyuki SANO, Yoshihiro IGARASHI
  • Patent number: 11329538
    Abstract: According to one embodiment, in a lateral cross section, a rotor core includes a plurality of layers of barrier regions formed to be arranged in a radial direction with intervals in each magnetic pole. Each barrier region includes a flux barrier extending from near a part of an outer circumferential surface through d axis to near another part thereof. At least a flux barrier of a barrier region provided at an outermost circumferential surface side is filled with a nonmagnetic conductive material. A barrier-side edge on a side of the central axis, which defines the flux barrier of the barrier region provided in an outermost circumferential surface side is located within a range of 0.55<2a/R2 <0.84.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: May 10, 2022
    Assignees: TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION, Toshiba Industrial Products and Systems Corporation
    Inventors: Katsutoku Takeuchi, Makoto Matsushita, Yuji Yamamoto, Masaaki Matsumoto
  • Patent number: 11223313
    Abstract: A device according to an embodiment includes an inverter main circuit; a detector configured to detect a current of an output line of the inverter main circuit; a starting time controller comprising a rotational phase angle estimator configured to calculate, based on a current response value detected by the detector, a value corresponding to a rotational phase angle of a motor connected to the inverter main circuit in a stationary reference frame, and a rotational speed estimator configured to calculate a value corresponding to a rotational speed of the motor by using the value corresponding to the rotational phase angle when the inverter main circuit is started; and a regular time controller configured to calculate, with the value corresponding to the rotational speed as an initial value, an estimated rotational phase angle of the motor in a rotating reference frame.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: January 11, 2022
    Assignees: Toshiba Infrastructure Systems & Solutions Corporation, Toshiba Industrial Products and Systems Corporation
    Inventors: Shun Taniguchi, Kazuya Yasui, Tomoaki Shigeta
  • Patent number: 11050373
    Abstract: A rotary electric system includes a rotary electric device that includes: a stator including a stator winding; and a rotor. The stator winding includes: a first coil group that generates a rotating magnetic field to rotate the rotor; and a second coil group that generates power with induced electromotive force due to rotation of the rotor.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: June 29, 2021
    Assignee: Toshiba Industrial Products and Systems Corporation
    Inventor: Kazuto Sakai
  • Publication number: 20200343798
    Abstract: According to one embodiment, in a lateral cross section, a rotor core includes a plurality of layers of barrier regions formed to be arranged in a radial direction with intervals in each magnetic pole. Each barrier region includes a flux barrier extending from near a part of an outer circumferential surface through d axis to near another part thereof. At least a flux barrier of a barrier region provided at an outermost circumferential surface side is filled with a nonmagnetic conductive material. A barrier-side edge on a side of the central axis, which defines the flux barrier of the barrier region provided in an outermost circumferential surface side is located within a range of 0.55<2a/R2 <0.84.
    Type: Application
    Filed: April 22, 2020
    Publication date: October 29, 2020
    Applicants: TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION, Toshiba Industrial Products and Systems Corporation
    Inventors: Katsutoku Takeuchi, Makoto Matsushita, Yuji Yamamoto, Masaaki Matsumoto
  • Patent number: 10778052
    Abstract: A synchronous reluctance type rotary electric machine of an embodiment includes a shaft and a rotor core. The shaft rotates around a rotation axis. The rotor core is fixed to the shaft and includes multi-layered hollow parts having a convex shape toward a radially inward side formed for each pole in cross section. Then, when a center in a circumferential direction of one pole is a pole center, a hollow part closest to the shaft among the plurality of hollow parts is a first hollow part, a hollow part positioned next to the first hollow part is a second hollow part, and a hollow part positioned on a side opposite to the first hollow part with respect to the second hollow part is a third hollow part, a width W1 between the first hollow part and the second hollow part on the pole center and a width W2 between the second hollow part and the third hollow part on the pole center are set to satisfy W1?W2.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: September 15, 2020
    Assignees: Toshiba Industrial Products and Systems Corporation, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Masaaki Matsumoto, Takashi Araki, Makoto Matsushita, Katsutoku Takeuchi, Toshio Hasebe
  • Patent number: 10742151
    Abstract: A device according to an embodiment includes an circuit; a detector for detecting a current response output from the circuit; a vector converter for converting the current response into a d-axis current and a q-axis current by using a rotational phase angle of a motor connected to the circuit; a calculator for calculating, based on a torque command and a current phase angle command, a current amplitude command of the current response output from the circuit; a dq-axes converter for calculating a d-axis current command and a q-axis current command from the current amplitude command and the current phase angle command; and a controller for calculating a voltage command so that the d-axis current command and the q-axis current command are equal to the d-axis current and the q-axis current.
    Type: Grant
    Filed: March 5, 2019
    Date of Patent: August 11, 2020
    Assignees: Toshiba Infrastructure Systems & Solutions Corporation, Toshiba Industrial Products and Systems Corporation
    Inventors: Shun Taniguchi, Kazuya Yasui, Tomoaki Shigeta
  • Patent number: 10720818
    Abstract: A synchronous reluctance type rotary electric machine of an embodiment includes a shaft, a rotor core, rotor core pressers, a plurality of conductor bars, and short-circuit rings. The shaft rotates around a rotation axis. The rotor core is fixed to the shaft and includes multi-layered hollow parts having a convex shape toward a radially inward side formed for each pole in cross section. The rotor core pressers hold the rotor core by pressing the rotor core from both sides in a rotation axis direction. The plurality of conductor bars are disposed in the hollow parts to extend along the rotation axis and have both ends protruding through the rotor core pressers. The short-circuit rings are provided at both ends of each of the plurality of conductor bars and connect the plurality of conductor bars together. Thus, the conductor bars are fixed to the rotor core pressers.
    Type: Grant
    Filed: April 11, 2019
    Date of Patent: July 21, 2020
    Assignees: Toshiba Industrial Products and Systems Corporation, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Masaaki Matsumoto, Takashi Araki, Makoto Matsushita, Katsutoku Takeuchi, Toshio Hasebe
  • Patent number: 10637310
    Abstract: A synchronous reluctance type rotary electric machine of an embodiment has a rotor core. The rotor core includes a plurality of poles, multi-layered hollow parts having a convex shape toward a side radially inward formed for each pole in cross section, and a bridge formed between each of the hollow parts and an outer circumferential surface thereof. When a boundary between two adjacent poles is a pole boundary, a groove is formed on at least one of both sides sandwiching the pole boundary at positions other than on the pole boundary on the outer circumferential surface of the rotor core.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: April 28, 2020
    Assignees: Toshiba Industrial Products and Systems Corporation, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Masaaki Matsumoto, Takashi Araki, Yuji Yamamoto, Katsutoku Takeuchi, Makoto Matsushita, Toshio Hasebe
  • Patent number: 10622853
    Abstract: A synchronous reluctance type rotary electric machine of an embodiment includes, a rotor core, a plurality of conductor bars, short-circuit rings, a stator core, and multiphase armature windings. The rotor core includes multi-layered hollow parts having a convex shape toward a side radially inward formed for each pole in cross section, and a bridge formed between each of the hollow parts and an outer circumferential surface thereof. The plurality of conductor bars are disposed in the respective hollow parts. The short-circuit rings connect the plurality of conductor bars together. Then, in all of the hollow parts of a second layer and subsequent layers other than the hollow part of a first layer which is at a position farthest from the rotation axis of the rotor core, the conductor bars are disposed at both end portions thereof close to the bridge at a predetermined distance from the bridge.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: April 14, 2020
    Assignees: Toshiba Industrial Products and Systems Corporation, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Kazuhiro Toda, Takashi Araki, Masaaki Matsumoto, Katsutoku Takeuchi, Makoto Matsushita, Toshio Hasebe
  • Patent number: 10554081
    Abstract: A synchronous reluctance rotary electric machine of an embodiment includes a shaft and a rotor core. The shaft rotates around a rotation axis. The rotor core is fixed to the shaft, includes four layers of hollow parts having a convex shape toward a radially inner side formed for each pole in cross section, and includes bridges between the respective hollow parts and an outer circumferential surface thereof. Then, in each pole, when a center in a circumferential direction is a pole center, both ends in the circumferential direction are pole ends, and the plurality of bridges are a first layer bridge, a second layer bridge, a third layer bridge, and a fourth layer bridge in order from the pole center toward each of the pole ends, a circumferential width between the second layer bridge and the third layer bridge is set to be greater than a circumferential width between the first layer bridge and the second layer bridge and a circumferential width between the third layer bridge and the fourth layer bridge.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: February 4, 2020
    Assignees: Toshiba Industrial Products and Systems Corporation, Toshiba Infrastructure Systems & Solutions Corporation
    Inventors: Katsutoku Takeuchi, Makoto Matsushita, Toshio Hasebe, Masaaki Matsumoto
  • Patent number: 10536059
    Abstract: The apparatus for manufacturing an iron core for a dynamo-electric machine according to an embodiment of the present invention is provided with a rotary layering part for layering while rotating an iron core material punched from an electromagnetic steel sheet, a drive source for generating a drive force for rotating the rotary layering part, and a drive force transmission part for transmitting the drive force generated by the drive source to the rotary layering part. The drive force transmission part is configured from a plurality of gears arranged between the drive source and the rotary layering part. The rotary layering part is provided with a rotation position establishing means for establishing the rotation position of the rotary layering part.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: January 14, 2020
    Assignee: TOSHIBA INDUSTRIAL PRODUCTS & SYSTEMS CORPORATION
    Inventors: Takayuki Akatsuka, Toyonobu Yamada, Naoya Fujita, Masanori Ihori
  • Publication number: 20190379312
    Abstract: A rotary electric system includes a rotary electric device that includes: a stator including a stator winding; and a rotor. The stator winding includes: a first coil group that generates a rotating magnetic field to rotate the rotor; and a second coil group that generates power with induced electromotive force due to rotation of the rotor.
    Type: Application
    Filed: March 1, 2018
    Publication date: December 12, 2019
    Applicant: Toshiba Industrial Products and Systems Corporation
    Inventor: Kazuto SAKAI
  • Patent number: 10505406
    Abstract: According to one embodiment, an electrical machine includes a rotor and an armature. The armature includes first to third stator cores, and an armature coil. The first and second stator cores are arranged along a direction of a rotation axis of the rotor. The third stator core is arranged opposite to the first and second stator cores. The armature coil is provided between the first and second stator cores. The first and second stator cores have a same shape and each include magnetic poles and a first positioning part. The third stator core includes a second positioning part. A relative phase angle of the first stator core and a relative phase angle of the second stator core in the rotation direction are set by using the first positioning part and the second positioning part.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: December 10, 2019
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Industrial Products and Systems Corporation
    Inventors: Hiroshi Takahashi, Yasuhito Ueda, Takahiro Kokubo, Toyonobu Yamada, Yoshiro Shinoda, Hisaaki Shimozu, Yuji Yamamoto
  • Patent number: 10444273
    Abstract: A partial discharge measurement device includes: an impulse voltage application unit; a measurement control unit; and first and second partial discharge detection unit. The measurement control unit includes: a first and a second detector level partial discharge counting unit; and a partial discharge resistance evaluation unit. Each of the first and the second detector level partial discharge counting units outputs a first or second detection signal when the first or second detection signal exceeds a predetermined specified value. The partial discharge resistance evaluation unit counts the number of occurrences of partial discharge based on an output from the first and second detector level partial discharge counting unit, and regards the impulse voltage value at which the count value has reached a predetermined value as a partial discharge inception voltage under the repeated impulse voltage application.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: October 15, 2019
    Assignees: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, KABUSHIKI KAISHA TOSHIBA, TOSHIBA INDUSTRIAL PRODUCTS AND SYSTEMS CORPORATION
    Inventors: Tomomi Ikegami, Tetsuo Yoshimitsu, Takayuki Sakurai, Tatsuya Hirose, Satoshi Hiroshima, Yuji Yamamoto