公开(公告)号：US20230098144A1

公开(公告)日：2023-03-30

申请号：US17950148

申请日：2022-09-22

Applicant: Nidec Corporation

Inventor： Toshiya OKAMOTO ,  Takashi HATTORI ,  Shuji IWASAKI

IPC: H02K3/50 ,  H02K11/00 ,  H02K5/22 ,  H02K5/173 ,  H02K11/33

Abstract: A motor includes a rotor, a stator, a bearing, a motor housing, a bearing holder, a bus bar assembly, and a circuit board. The bearing holder includes a holder protrusion and a bus bar cover. The bus bar cover is located on a lower surface of the holder protrusion and covers a terminal through hole penetrating the holder protrusion in an axial direction. The bus bar cover includes a cover portion. The cover portion covers lower end portions of a bus bar terminal and a circuit terminal, is tubular, and includes an open upper surface. The cover portion is closer to the motor housing than a tangent line that connects a protruding direction outer end of a lower end of the holder protrusion and a lower end of the motor housing.

公开(公告)号：US20200220435A1

公开(公告)日：2020-07-09

申请号：US16637778

申请日：2018-06-28

Applicant: Nidec Corporation

Inventor： Takashi HATTORI ,  Toshiya OKAMOTO

IPC: H02K11/33 ,  H02K5/22 ,  H02K9/22 ,  B62D5/04

Abstract: A motor includes a rotor including an axially extending shaft, a stator surrounding a radially outer side of the rotor, a housing accommodating the rotor and the stator therein, a holder disposed axially above the stator, a board fixed axially above the holder, a choke coil electrically connected to the board, and a connector radially outside the housing, and the connector the choke coil, and the board overlap in this order when viewed from axially below.

公开(公告)号：US20210143708A1

公开(公告)日：2021-05-13

申请号：US16611996

申请日：2017-12-07

Applicant: Nidec Corporation

Inventor： Takashi HATTORI ,  Takahiro KIZU ,  Toshiya OKAMOTO ,  Yuichi NISHIKAWA ,  Yoshiaki YAMASHITA

IPC: H02K9/22 ,  H02K3/52 ,  H02K5/22 ,  H02K7/08 ,  H02K11/33 ,  H02K11/40

Abstract: A motor includes a heat sink including a first portion and a second portion located on a circumference identical to the first portion and extending along a circumferential direction. An axial thickness of the first portion is larger than an axial thickness of the second portion. A lower surface of the second portion is located axially above a lower surface of the first portion. A busbar is located axially below the second portion.

公开(公告)号：US20180351428A1

公开(公告)日：2018-12-06

申请号：US16058324

申请日：2018-08-08

Applicant: NIDEC CORPORATION

Inventor： Toshiya OKAMOTO ,  Shota KAWASHIMA ,  Masato AONO ,  Takayuki MIGITA

IPC: H02K3/52 ,  H02K1/14 ,  H02K1/27 ,  H02K3/18 ,  H02K3/32 ,  H02K3/30 ,  H02K5/22 ,  H02K7/14

Abstract: A stator includes a plurality of lead wires extending upward from a coil and a guide member supporting the lead wire above the coil. The guide member is an insulating body. The guide member includes a lower plate, an inner wall, and an upper plate. The lower plate spreads annularly around a central axis. The inner wall extends upward from an inner circumference of the lower plate. The upper plate extends from the inner wall to a radial outside. A single lead wire accommodation space exists on an upper side of the lower plate, a lower side of the upper plate, and a radial outside of the inner wall. The plurality of lead wires are circumferentially disposed along the inner wall in the lead wire accommodation space.

公开(公告)号：US20200062295A1

公开(公告)日：2020-02-27

申请号：US16346880

申请日：2017-03-30

Applicant: Nidec Corporation

Inventor： Takashi HATTORI ,  Takahiro KIZU ,  Toshiya OKAMOTO ,  Yuichi NISHIKAWA ,  Yoshiaki YAMASHITA

IPC: B62D5/04 ,  H02K5/26 ,  H02K11/33 ,  H02K15/14

Abstract: A motor includes a rotor, a stator that surrounds the radial outer side of the rotor, a housing that contains the rotor and the stator, a holder axially above the stator, a substrate fixed to the axial upper side of the holder, and a connector radially outward of the housing and electrically connected to the substrate. The holder includes a holder body, and a holder protrusion that connects to the holder body and extends radially outward from the housing. The connector contacts the underside of the holder protrusion.

公开(公告)号：US20190319517A1

公开(公告)日：2019-10-17

申请号：US16347823

申请日：2017-03-30

Applicant: Nidec Corporation

Inventor： Takashi HATTORI ,  Yusaku YOSHIDA ,  Toshiya OKAMOTO ,  Takahiro KIZU ,  Yuichi NISHIKAWA

IPC: H02K11/30 ,  H02K3/04 ,  H02K3/50 ,  H02K5/04 ,  H02K9/22

Abstract: A motor includes a rotor, a stator, a housing, a heat sink, a substrate, a connector, and a cover. The connector includes a connector shell with a shell projection shell. The heat sink includes a heat sink body and a heat sink protrusion. The heat sink protrusion includes a heat sink recess or heat sink projection. The shell projection or shell recess, and the heat sink recess or heat sink projection are fitted through a gap.

公开(公告)号：US20190319516A1

公开(公告)日：2019-10-17

申请号：US16343424

申请日：2017-03-30

Applicant: Nidec Corporation

Inventor： Takahiro KIZU ,  Takashi HATTORI ,  Toshiya OKAMOTO ,  Yuichi NISHIKAWA ,  Yoshiaki YAMASHITA

IPC: H02K11/30 ,  H02K3/04 ,  H02K3/50 ,  H02K9/22 ,  H02K5/22

Abstract: A motor includes a rotor with a shaft that extends axially, a stator that surrounds a radial outer side of the rotor, a heat sink that is axially above the stator and provided with cavities that pass conductors therethrough and extend axially, and a substrate that is axially above the heat sink and includes an electronic component mounted thereon, wherein the heat sink includes a contact surface that contacts the substrate or electronic component directly or via a heat dissipating member and an exposed surface that does not come into contact with other members, wherein the exposed surface is located closer to an outer edge than the cavities.

公开(公告)号：US20230208248A1

公开(公告)日：2023-06-29

申请号：US18084654

申请日：2022-12-20

Applicant: Nidec Corporation

Inventor： Takashi HATTORI ,  Toshiya OKAMOTO ,  Yoshinobu ARAO ,  Daiki KATO ,  Kenta SEKI

IPC: H02K5/22 ,  H02K11/33

CPC classification number: H02K5/225 ,  H02K11/33

Abstract: A motor assembly includes a motor, a controller, a housing, and a seal. The housing includes a cover that covers the controller from one side in the axial direction. The cover includes a through-hole penetrating in the axial direction. The controller includes a connector portion extending through the through-hole and protruding to one side in the axial direction of the cover. The seal seals an area between an inner edge of the through-hole and the connector portion. An obverse surface on one side in the axial direction of the cover includes a groove portion recessed to the other side in the axial direction. One end of the groove portion communicates with the through-hole.

公开(公告)号：US20230102080A1

公开(公告)日：2023-03-30

申请号：US17950151

申请日：2022-09-22

Applicant: Nidec Corporation

Inventor： Shuji IWASAKI ,  Toshiya OKAMOTO ,  Takashi HATTORI

IPC: H02K3/50 ,  H02K11/33 ,  H02K11/00 ,  H02K5/22 ,  H02K5/173

Abstract: A motor includes a rotor, a stator, a bearing, a motor housing, a bearing holder, a bus bar assembly, and a circuit board. The bearing holder includes a holder protrusion protruding radially outward of the motor housing. A bus bar cover is attached to the lower surface of the holder protrusion. The bus bar cover covers the terminal through hole axially penetrating the holder protrusion. The bus bar cover includes a cover portion and a flange portion. The cover portion covers the lower end portions of the bus bar terminal and the circuit terminal, and is tubular with an open upper surface. The flange portion extends outward from the upper end peripheral edge portion of the cover portion and is fixed to the lower surface of the holder protrusion. The flange portion includes an annular flange projection protruding upward from the upper surface.

公开(公告)号：US20230101842A1

公开(公告)日：2023-03-30

申请号：US17949262

申请日：2022-09-21

Applicant: Nidec Corporation

Inventor： Toshiya OKAMOTO ,  Takashi HATTORI ,  Shuji IWASAKI

IPC: H02K7/08 ,  H02K7/00

Abstract: A motor includes a rotor, a stator, a bearing, a motor housing, a bearing holder, a bus bar assembly, and a circuit board. The bearing holder holds the bearing to cover the opening of the motor housing, and includes a holder protrusion. The holder protrusion is located radially outside the motor housing and includes an axially penetrating terminal through hole. The bus bar assembly includes a bus bar terminal and a bus bar holder. The bus bar terminal is connected to the bus bar, extends axially downward, passes through the terminal through hole, and protrudes axially downward from the lower surface of the holder protrusion. The circuit board includes a circuit terminal extending axially downward, passing through the terminal through hole, protruding axially downward from the lower surface of the holder protrusion, and connected to the bus bar terminal.