公开(公告)号：US20140312730A1

公开(公告)日：2014-10-23

申请号：US14249640

申请日：2014-04-10

Applicant: JTEKT CORPORATION

Inventor： Yoshiyuki SHIBATA ,  Yutaka MORI

IPC: H02K21/02

CPC classification number: H02K21/029 ,  H02K1/276 ,  H02K16/02 ,  H02K21/16

Abstract: A rotary electric machine includes: a stator;a rotor; a control device that causes the stator to generate a rotating magnetic field; and a magnetic flux supply element supported by a rotary shaft so as to be rotatable relative to the rotary shaft, disposed radially inward of the rotor across a gap, and having auxiliary magnets. Each auxiliary magnet is formed such that opposite end portions thereof in the circumferential direction are radially opposed to holding magnets when the relative rotation angle of the magnetic flux supply element is a strengthening angle. The control device executes field weakening control or field strengthening control, thereby changing the relative rotation angle of the magnetic flux supply element.

Abstract translation: 旋转电机包括：定子; 转子 使所述定子产生旋转磁场的控制装置; 以及由旋转轴支撑成能够相对于旋转轴旋转的磁通量供给元件，其设置在转子的径向内侧跨越间隙，并具有辅助磁体。 每个辅助磁体形成为使得当磁通量供给元件的相对旋转角度为强化角时，圆周方向的相对端部与保持磁体径向相对。 控制装置执行弱磁控制或场强控制，从而改变磁通量供给元件的相对旋转角度。

公开(公告)号：US20140021818A1

公开(公告)日：2014-01-23

申请号：US13940529

申请日：2013-07-12

Applicant: JTEKT CORPORATION

Inventor： Yoshiyuki SHIBATA

IPC: H02K1/27

CPC classification number: H02K1/2713 ,  H02K1/2766 ,  H02K1/2773 ,  H02K21/046 ,  H02K21/14

Abstract: An electric motor has a supplementary field magnet including a magnetization coil, a yoke serving as a magnetic path for magnetic flux produced by the magnetization coil, and a variable magnet. The supplementary field magnet is arranged on one axial end side of the rotor with a gap. A rotor core is provided with first projections projecting toward one axial end side of the electric motor from first magnetic pole portions, and second projections projecting toward the one axial end side from second magnetic pole portions and arranged radially inward of the first projections. The yoke includes an outer magnetic pole portion axially opposed to the first projections, and an inner magnetic pole portion axially opposed to the second projections such that an annular gap is formed between the inner magnetic pole portion and the outer magnetic pole portion.

Abstract translation: 电动机具有包括磁化线圈，用作由磁化线圈产生的磁通的磁路的磁轭和可变磁铁的辅助磁场磁体。 辅助磁场磁体布置在转子的一个轴向端侧上，具有间隙。 转子芯具有从第一磁极部向电动机的一个轴向端侧突出的第一突起，从第二磁极部向一个轴向端侧突出的第二突起，并且配置在第一突起的径向内侧。 轭包括与第一突起轴向相对的外磁极部分和与第二突起轴向相对的内磁极部分，使得在内磁极部分和外磁极部分之间形成环形间隙。

公开(公告)号：US20140021817A1

公开(公告)日：2014-01-23

申请号：US13940518

申请日：2013-07-12

Applicant: JTEKT CORPORATION

Inventor： Yoshiyuki SHIBATA

IPC: H02K1/27

CPC classification number: H02K1/2713 ,  H02K1/2766 ,  H02K1/2773 ,  H02K21/046 ,  H02K21/14

Abstract: An electric motor has a supplementary field magnet including a supplementary magnet, a yoke serving as a magnetic path for magnetic flux produced by the supplementary magnet. The supplementary field magnet is arranged on one axial end side of the rotor with a gap. A rotor core is provided with first projections projecting toward one axial end side of the electric motor from first magnetic pole portions having a first polarity, and second projections projecting toward the one axial end side from second magnetic pole portions having a second polarity, and arranged radially inward of the first projections. The yoke includes a magnetic pole portion axially opposed to the first projections and having the first polarity, and another magnetic pole portion axially opposed to the second projections and having the second polarity such that a gap is formed between the magnetic pole portions.

Abstract translation: 电动机具有辅助磁铁，其包括辅助磁体，用作由辅助磁体产生的磁通磁路的磁轭。 辅助磁场磁体布置在转子的一个轴向端侧上，具有间隙。 转子芯具有从具有第一极性的第一磁极部向电动机的一个轴向端侧突出的第一突起，从具有第二极性的第二磁极部向一个轴向端侧突出的第二突起， 第一突起的径向内侧。 磁轭包括与第一突起轴向相对并且具有第一极性的磁极部分，以及与第二突起轴向相对并具有第二极性的另一磁极部分，使得在磁极部分之间形成间隙。

公开(公告)号：US20240341270A1

公开(公告)日：2024-10-17

申请号：US18291989

申请日：2021-08-20

Applicant: JTEKT CORPORATION ,  TOKUSHIMA UNIVERSITY

Inventor： Masayuki TAKESHIMA ,  Yoshiyuki SHIBATA ,  Toshimasa SOKU ,  Kazuya NUMAZAKI ,  Fumiki MORIMATSU ,  Kentaroh TAKAGAKI ,  Maki HIRATA

IPC: A01K1/03 ,  A01K1/02 ,  A01K29/00

CPC classification number: A01K1/031 ,  A01K1/0272 ,  A01K29/005

Abstract: A management system for an experimental animal is provided. This management system includes an information identifying unit configured to identify experimental information on the experimental animal to be transported to an experiment site, and a stress value calculating unit configured to calculate a stress value indicating stress to be suffered by the experimental animal during transportation based on the experimental information. The experimental information includes at least a part of a transportation distance for the transportation of the experimental animal, a transportation period for the transportation of the experimental animal, the number of the experimental animals to be transported at a time, an age of the experimental animal, and information on pretreatment given to the experimental animal prior to the transportation.

公开(公告)号：US20230259328A1

公开(公告)日：2023-08-17

申请号：US18169458

申请日：2023-02-15

Applicant: JTEKT CORPORATION ,  connectome.design Inc.

Inventor： Hiroki UMEZAWA ,  Yoshiyuki SHIBATA ,  Takashi MATSUMOTO ,  Akira SATO

IPC: G06F3/16 ,  G06F3/01

CPC classification number: G06F3/167 ,  G06F3/013 ,  G06F3/012

Abstract: An information provision system includes a processor and a memory storing instructions that, when executed by the processor, cause the information provision system to perform operations. The operations include: acquiring position information of a user and line-of-sight direction information of the user; estimating a target visually recognized by the user based on the position information, the line-of-sight direction information, and target position information for targets visually recognizable by the user; outputting, by sound, description information about the target in accordance with a setting; detecting a motion of a head of the user; estimating an intention of the user based on the motion during output of the description information; selecting the setting in accordance with the intention; and outputting, in response to change of the setting, the description information in accordance with the setting after the change.

公开(公告)号：US20200237600A1

公开(公告)日：2020-07-30

申请号：US16748861

申请日：2020-01-22

Applicant: JTEKT CORPORATION

Inventor： Tomoki ARAI ,  Yoshiyuki SHIBATA

IPC: A61H3/00 ,  A61H1/02

Abstract: An assist device includes a body mounting fixture, an actuator, an operation state detector, and a controller. The controller is configured to control drive of the actuator. The controller is configured to acquire an estimated posture of the wearer, which is estimated based on operation detection information detected by the operation state detector, when the actuator generates the assist torque. The controller is configured to determine whether or not the estimated posture is an unreasonable posture in which an excessive force is applied to a lower back portion.

公开(公告)号：US20190262217A1

公开(公告)日：2019-08-29

申请号：US16285303

申请日：2019-02-26

Applicant: JTEKT CORPORATION

Inventor： Manabu KANAYA ,  Yoshiyuki SHIBATA ,  Shinji TAKEUCHI ,  Genki MURATA

IPC: A61H3/04 ,  B62B5/06

Abstract: A walking assist device has a frame, a plurality of wheels, drive units, a battery, and a drive control unit that controls the drive units. The walking assist device also has: a pair of right and left movable handles that are grasped by a user and movable back and forth with respect to the frame in accordance with arm swing performed during walk of the user; handle guide units provided on the frame to guide the movable handles in a movable range that matches the arm swing performed during walk of the user; and a grasp portion state detection unit that detects the state of the movable handles. The drive control unit controls the travel speed of the walking assist device by controlling the drive units on the basis of the state of the movable handles which is detected using the grasp portion state detection unit.

公开(公告)号：US20170070129A1

公开(公告)日：2017-03-09

申请号：US15247558

申请日：2016-08-25

Applicant: JTEKT CORPORATION

Inventor： Yoshiyuki SHIBATA

IPC: H02K15/03 ,  H02K1/27

CPC classification number: H02K15/03 ,  H01F13/003 ,  H01F41/0266 ,  H02K1/2706

Abstract: In manufacturing permanent magnets by filling insertion holes of a core with a magnet material, the density of the magnetic flux entering the magnet material can be restrained from being limited by the saturation magnetic flux density of the core. A guide member is placed so as to face a core in an axial direction. An orienting/magnetizing device faces the core and the guide member in the radial direction and applies a magnetic field to the guide member and the core in the radial direction. Insertion holes of the core are filled with the magnet material through guide holes of the guide member. The magnetic field is therefore applied from the orienting/magnetizing device to the magnet material passing through the guide holes.

Abstract translation: 在通过用磁体材料填充芯的插入孔来制造永磁体时，可以抑制进入磁体材料的磁通密度受到芯的饱和磁通密度的限制。 引导构件被放置成在轴向方向上面对芯。 定向/磁化装置在径向方向面对芯部和引导部件，并且在径向方向上对引导部件和芯部施加磁场。 芯的插入孔通过引导构件的引导孔填充有磁体材料。 因此，磁场从定向/磁化装置施加到穿过引导孔的磁体材料。

公开(公告)号：US20140001910A1

公开(公告)日：2014-01-02

申请号：US13919392

申请日：2013-06-17

Applicant: JTEKT CORPORATION

Inventor： Yoshiyuki SHIBATA

IPC: H02K1/27 ,  H02K15/03

CPC classification number: H02K1/2773 ,  H02K15/03 ,  H02K2201/06 ,  Y10T29/49012

Abstract: A plurality of lamination steel sheets that form a rotor core are stacked so that the lamination steel sheets are angularly shifted from each other, and a plurality of cavities are formed. Permanent magnets are molded and disposed in the cavities by injection molding. Each permanent magnet has a uniform plate thickness, and is bent with respect to an axial direction so as to have a triangular wave shape or an S shape. The permanent magnets are magnetized after being disposed in the cavities. The paired magnet pieces have poles of the same polarity, which face each other in the circumferential direction of a rotor, and each of the magnet pieces is magnetized in directions of normals to a surface of the magnet piece, the surface having a linear sectional shape.

Abstract translation: 形成转子铁心的多个层叠钢板被层叠，使得层压钢板彼此成角度地移动，形成多个空腔。 永磁体通过注塑成型并设置在空腔中。 每个永磁体具有均匀的板厚度，并且相对于轴向弯曲成具有三角波形或S形。 在设置在空腔中之后，永磁体被磁化。 成对的磁体具有在转子的圆周方向上彼此相同的极性的磁极，并且每个磁体片在与磁体片的表面的法线方向上磁化，该表面具有线性截面形状 。