公开(公告)号：US12025149B2

公开(公告)日：2024-07-02

申请号：US17634256

申请日：2020-08-19

Applicant: Nidec Corporation

Inventor： Daisuke Ogasawara ,  Yusuke Makino

IPC: F04D25/06 ,  F04D19/00 ,  F04D29/32 ,  F04D29/40 ,  F04D29/58

CPC classification number: F04D29/403 ,  F04D19/002 ,  F04D25/0613 ,  F04D29/326 ,  F04D29/5806

Abstract: A ducted fan that includes a housing with a cylindrical shape, a ring motor in the housing, and fan blades extending radially inward from an inner circumferential surface of the ring motor. The housing includes a first housing that covers a first side in an axial direction of the ring motor and a second housing that covers a second side in the axial direction of the ring motor. The second housing includes through holes penetrating the second housing at a portion on the second side in the axial direction with respect to the ring motor. The housing includes an outer circumferential wall including first and second wall portions located in outer circumferential portions of the first and second housings. The outer circumferential wall includes opening portions defined by a gap between the first and second wall portions.

公开(公告)号：US11781643B2

公开(公告)日：2023-10-10

申请号：US17696875

申请日：2022-03-17

Applicant: NIDEC CORPORATION

Inventor： Shohei Fujimoto ,  Ayumi Nakagawa ,  Shuhei Nakamatsu ,  Yusuke Makino

IPC: F16H57/04 ,  F16H57/021 ,  F16H57/031 ,  B60K1/00 ,  F16H57/02

CPC classification number: F16H57/0476 ,  F16H57/021 ,  F16H57/031 ,  F16H57/045 ,  F16H57/0415 ,  F16H57/0423 ,  F16H57/0424 ,  F16H57/0441 ,  F16H57/0471 ,  B60K2001/001 ,  F16H2057/02034 ,  F16H2057/02052

Abstract: In a drive device, a first flow path of a fluid connects a gear accommodation portion and an inlet of a pump. A second flow path connects an outlet of the pump and one end of a third flow path via a cooler. The third flow path is inside a partition wall of a housing and intersects a rotation axis of a first shaft. A fourth flow path connects another end of the third flow path and one end of a fifth flow path. The fifth flow path is inside a gear side lid of the housing. Another end of the fifth flow path is connected to one end of a second shaft in an axial direction. One end of a sixth flow path is connected to another end of the third flow path. Another end of the sixth flow path is inside a housing tubular portion.

公开(公告)号：US11050324B2

公开(公告)日：2021-06-29

申请号：US16053846

申请日：2018-08-03

Applicant: Nidec Corporation

Inventor： Yusuke Makino ,  Satoshi Kajikawa

IPC: H02K9/06 ,  H02K5/10 ,  H02K5/173 ,  H02K7/08 ,  H02K5/20 ,  H02K15/14 ,  H02K15/16 ,  H02K1/27 ,  H02K1/28 ,  H02K5/16 ,  H02K5/22 ,  H01R25/16

Abstract: A motor includes a shaft with a central axis along an up and down direction as a center, a bearing mechanism rotatably supporting the shaft; a cylindrical rotor main body fixed to the shaft; a rotor fan fixed to the shaft at an upper side of the rotor main body; an armature facing the rotor main body in a radial direction; and a housing accommodating the rotor main body, the rotor fan, and the armature therein. The bearing mechanism includes a first bearing above the rotor fan in the housing and facing the rotor fan in the up and down direction and a second bearing positioned below the rotor main body. The housing includes a first opening, a second opening, and a bearing holding portion.

公开(公告)号：US10965193B2

公开(公告)日：2021-03-30

申请号：US16321514

申请日：2017-08-04

Applicant: Nidec Corporation

Inventor： Satoshi Kajikawa ,  Yusuke Makino

IPC: H02K9/06 ,  B64D1/00 ,  H02K1/27 ,  H02K1/28 ,  H02K11/33 ,  H02K5/173 ,  H02K11/215 ,  H02K5/20 ,  H02K5/22 ,  H02K7/00 ,  H02K7/08 ,  H02K21/22

Abstract: A motor includes a shaft centered on a center axis oriented in a vertical direction, a bearing rotatably supporting the shaft, an armature disposed radially outward of the bearing, a bracket to which the bearing and the armature are fixed, and a covered cylindrical rotor connected to the shaft. The rotor includes a disk-shaped rotor lid portion connected to the shaft, and a rotor side wall portion extending downward from an outer edge of the rotor lid portion. The shaft is made of metal. The rotor lid portion and the rotor side wall portion are made of resin. The rotor lid portion and the shaft are an integrally molded article.

公开(公告)号：US10411543B2

公开(公告)日：2019-09-10

申请号：US15527420

申请日：2015-11-12

Applicant: Nidec Corporation ,  NIDEC TAIWAN CORPORATION

Inventor： Yusuke Makino ,  Yoshiki Kawai ,  Keisuke Morita ,  Guo Jhih Yan ,  Hsiu Ying Lin

IPC: H02K3/50 ,  H02K21/24 ,  H02K16/02 ,  H02K1/27 ,  H02K1/14 ,  H02K3/52

Abstract: Provided is a motor including a shaft; two rotors attached to the shaft and spaced from each other in an axial direction by a predetermined distance; a stator arranged between the two rotors; a busbar unit arranged on one axial side of at least one of the two rotors, and arranged to hold a busbar; and a housing arranged to hold the stator and house the two rotors therein. The stator includes a plurality of cores arranged in a circumferential direction, and coils wound around the cores. A lead wire drawn out from the coils is arranged to extend, radially outside of the one of the rotors, from the corresponding core to a position on the one axial side of the one of the rotors, and is connected to the busbar at the position. The busbar unit is housed in the housing.

公开(公告)号：US10103606B2

公开(公告)日：2018-10-16

申请号：US15146258

申请日：2016-05-04

Applicant: NIDEC CORPORATION

Inventor： Yosuke Yamada ,  Ryusuke Sato ,  Yasuaki Nakahara ,  Yusuke Makino ,  Hisashi Fujihara

IPC: H02K11/00 ,  H02K11/215 ,  H02K5/04 ,  H02K5/22 ,  H02K11/33

Abstract: A case includes a cylindrical housing arranged to hold a stator, and having an opening portion at a top thereof; and a motor cover fitted to an upper side of the housing, and arranged to cover an upper side of the stator. A busbar unit includes a sensor busbar electrically connected to a rotation sensor, and a busbar holder arranged at the opening portion to hold the sensor busbar. The case includes a case through hole arranged to open into a space outside of the case. The busbar holder includes a cylindrical holder body portion having at least a portion thereof arranged radially inside of the opening portion; and a protruding portion arranged to protrude out of the case, and having at least a portion thereof arranged in the case through hole. A gap is defined circumferentially between the protruding portion and an edge of the case through hole.

公开(公告)号：US11289969B2

公开(公告)日：2022-03-29

申请号：US16321517

申请日：2017-08-04

Applicant: Nidec Corporation

Inventor： Yusuke Makino

IPC: H02K5/00 ,  H02K5/22 ,  H02K5/173

Abstract: A motor includes a shaft, a bearing supporting the shaft, an armature disposed radially outward of the bearing, a bracket to which the bearing and the armature are fixed, and a rotor connected to the shaft. The bracket includes a bracket bottom portion covering a lower side of the armature, and a terminal holding portion extending radially outward from an outer peripheral portion of the bracket bottom portion. The terminal holding portion includes a plate-shaped holding portion main body connected to the outer peripheral portion of the bracket bottom portion, a terminal disposed on an upper surface of the holding portion main body, and a protrusion portion projecting downward from a lower surface of the holding portion main body at a same position in a radial direction as that of the terminal, or radially outward of the terminal.

公开(公告)号：US11286956B2

公开(公告)日：2022-03-29

申请号：US16321511

申请日：2017-08-04

Applicant: Nidec Corporation

Inventor： Satoshi Kajikawa ,  Tomoya Ueda ,  Yusuke Makino

IPC: H02K9/00 ,  F04D29/58 ,  H02K9/06 ,  H02K5/20 ,  H02K11/33 ,  H02K21/14 ,  F04D25/06 ,  F04D25/08 ,  H02K11/215 ,  F04D29/70 ,  H02K5/22 ,  H02K7/08 ,  H02K7/14 ,  H02K21/22

Abstract: A motor includes a shaft centered on a center axis oriented in a vertical direction, a bearing supporting the shaft, an armature disposed radially outward of the bearing, a bracket to which the bearing and the armature are fixed, and a covered cylindrical rotor connected to the shaft. The rotor includes a rotor lid portion connected to the shaft, a rotor side wall portion extending downward from an outer edge of the rotor lid portion, a blower plate portion connected to a lower surface of the rotor lid portion and extending radially outward from a center portion of the rotor lid portion, an inlet disposed radially outward of the cylindrical portion and penetrating the bracket, and an outlet disposed radially outward of the blower plate portion and radially penetrating the rotor.

公开(公告)号：US10666114B2

公开(公告)日：2020-05-26

申请号：US16059083

申请日：2018-08-09

Applicant: Nidec Corporation

Inventor： Yusuke Makino ,  Satoshi Kajikawa

IPC: H02K9/06 ,  H02K5/10 ,  H02K5/173 ,  H02K7/08 ,  H02K5/20 ,  H02K15/14 ,  H02K15/16 ,  H02K1/27 ,  H02K1/28 ,  H02K5/16 ,  H02K5/22 ,  H01R25/16

Abstract: A motor includes a shaft, a bearing mechanism rotatably supporting the shaft, a cylindrical rotor main body fixed to the shaft, a rotor fan fixed to the shaft, an armature, and a housing. The bearing mechanism includes a first bearing above the rotor fan in the housing and facing the rotor fan in an up and down direction. The housing includes a first opening, a second opening, and a bearing holding portion. A cylindrical wind tunnel portion is outward of the rotor fan in a radial direction. An inner surface of the wind tunnel portion and the rotor fan face each other in the radial direction. An upper end portion of the inner surface of the wind tunnel portion and an outer surface of the bearing holding portion face each other in the radial direction.

公开(公告)号：US09893588B2

公开(公告)日：2018-02-13

申请号：US14258271

申请日：2014-04-22

Applicant: NIDEC CORPORATION

Inventor： Yusuke Makino ,  Yoshiki Kawai

IPC: H02K5/20 ,  H02K5/15 ,  H02K5/12 ,  H02K9/19 ,  H02K9/00 ,  H02K5/16 ,  H02K1/18 ,  H02K15/12 ,  H02K9/22

CPC classification number: H02K5/20 ,  H02K1/185 ,  H02K5/12 ,  H02K5/15 ,  H02K5/16 ,  H02K9/00 ,  H02K9/19 ,  H02K9/22 ,  H02K15/12

Abstract: A motor includes a housing, a stator holder, a stator, and a flow path for a cooling fluid. The cooling flow path is provided between the housing and the stator holder. A coil of the stator is covered by a resin portion. The stator holder may include a holder cylindrical portion and a holder flat plate portion.