公开(公告)号：US20170201151A1

公开(公告)日：2017-07-13

申请号：US15472324

申请日：2017-03-29

Applicant: Nidec Corporation

Inventor： Hidehiro HAGA ,  Ryusuke SATO ,  Yosuke YAMADA ,  Yasuaki NAKAHARA

IPC: H02K5/22 ,  H02K3/28 ,  H02K3/50

CPC classification number: H02K5/225 ,  H02K1/146 ,  H02K3/28 ,  H02K3/50 ,  H02K3/522 ,  H02K7/083 ,  H02K11/30 ,  H02K29/08

Abstract: A motor includes a bus bar assembly including a bus bar, a wiring member, and a bus bar holder. The bus bar holder includes a main body portion, a bottom portion, and a first circuit board support portion. The wiring member includes a circuit board connection terminal electrically connected to the circuit board. The circuit board connection terminal includes a contact portion connected to the circuit board, and applies force to the circuit board through the contact portion. The first circuit board support portion is disposed at a region of the bottom portion to define a side at which the circuit board connection terminal is located when viewed from one direction. The first circuit board support portion and the contact portion are located at different positions when viewed from the one direction.

公开(公告)号：US20160352199A1

公开(公告)日：2016-12-01

申请号：US15158699

申请日：2016-05-19

Applicant: Nidec Corporation

Inventor： Takeshi HONDA ,  Yosuke YAMADA ,  Yasuaki NAKAHARA ,  Hisashi FUJIHARA ,  Takayuki MIGITA ,  Tsuyoshi NAKAMURA

IPC: H02K15/12 ,  H02K15/03 ,  H02K11/215 ,  H02K1/27 ,  H02K1/28

Abstract: A manufacturing method comprising: a process S1 of forming a plate member which has a substantially annular scrap portion having a center hole through an axial direction and a core plate portion defining a portion of the core pieces arranged continuously with the scrap portion on a radially inner side of the scrap portion; a process S2 of forming a laminated body, which has the core pieces, by laminating the plate member; a process S3 of providing the laminated body and the shaft in a mold; a process S4 of forming a molding body by inserting a molten resin or a nonmagnetic material in the mold and forming the filling portion of which at least a portion is located between the core pieces; and a process S5 of separating the scrap portion and the core plate portion.

Abstract translation: 一种制造方法，包括：形成板状构件的工序S1，所述板构件具有沿着轴向具有中心孔的大致环形的废料部，以及芯板部，其将与所述废料部连续排列的所述芯片的一部分配置在径向内侧 废料部分的侧面; 通过层叠板构件形成具有芯片的层叠体的工序S2; 在模具中设置层叠体和轴的工序S3; 通过将熔融树脂或非磁性材料插入模具中并形成至少一部分位于芯片之间的填充部分来形成成型体的工艺S4; 以及分离废料部和芯板部的工序S5。

公开(公告)号：US20190214889A1

公开(公告)日：2019-07-11

申请号：US16325435

申请日：2017-09-29

Applicant: Nidec Corporation

Inventor： Takayuki MIGITA ,  Takeshi HONDA ,  Hirofumi MUTO ,  Osamu FUJIMOTO ,  Hiroshi KITAGAKI ,  Yasuaki NAKAHARA

IPC: H02K15/00 ,  H02K1/27

CPC classification number: H02K15/0043 ,  H02K1/22 ,  H02K1/27 ,  H02K1/2773 ,  H02K15/0068 ,  H02K15/02

Abstract: A rotor core includes laminate steel plates extending in a radial direction with respect to a central axis. The laminate steel plates each include a base portion on a radially outer side of the central axis, and pieces separately disposed on a radially outer side of the base portion with penetrating portions therebetween, and arranged side by side at predetermined intervals in a circumferential direction. The laminate steel plates are laminated in an axial direction. The laminated steel plate at an upper end in the axial direction includes at least one of an outward projection extending radially outward from an outer edge portion of the base portion and an inward projection extending radially inward from an inner edge portion of the piece, and the laminated steel plate at a lower end in the axial direction includes an intervening portion between the base portion and the piece portion.

公开(公告)号：US20190214866A1

公开(公告)日：2019-07-11

申请号：US16325437

申请日：2017-09-29

Applicant: Nidec Corporation

Inventor： Takayuki MIGITA ,  Takeshi HONDA ,  Hirofumi MUTO ,  Osamu FUJIMOTO ,  Hiroshi KITAGAKI ,  Yasuaki NAKAHARA

IPC: H02K1/27 ,  H02K1/28 ,  H02K21/14 ,  H02K15/03

Abstract: A rotor includes a rotor core in which laminate steel plates extending in a radial direction with respect to a central axis are laminated in an axial direction, and magnets are inserted into the rotor core. Each of the laminate steel plates includes a base portion positioned on a radially outer side of the central axis, and pieces separately disposed on a radially outer side of the base portion with penetrating portions therebetween, and arranged side by side at predetermined intervals in a circumferential direction. The magnets are inserted into the penetrating portions and arranged side by side at predetermined intervals in the circumferential direction. Space portions are provided between the magnets adjacent to each other in the circumferential direction. A circumferential length of the pieces is shorter than a circumferential length of the magnets.

公开(公告)号：US20190190360A1

公开(公告)日：2019-06-20

申请号：US16318785

申请日：2016-09-30

Applicant: Nidec Corporation

Inventor： Yasuaki NAKAHARA ,  Keisuke SAITO ,  Takeshi HONDA ,  Hirofumi MUTO ,  Osamu FUJIMOTO

IPC: H02K15/12 ,  H02K1/28 ,  H02K7/08 ,  H02K11/215 ,  H02K1/27 ,  H02K15/03

CPC classification number: H02K15/12 ,  H02K1/27 ,  H02K1/276 ,  H02K1/28 ,  H02K7/083 ,  H02K11/215 ,  H02K15/03

Abstract: A method of manufacturing a rotor includes forming plates each including a scrap portion that has a center hole and core plate portions that are disposed continuously with the scrap portion on an inner side of the center hole and that each defines a portion of a corresponding one of the outer cores forming a multilayer body including the outer cores by stacking the plates, setting at least a portion of the multilayer body and a portion of the inner core in a mold with a gap therebetween in the radial direction, forming a molded body by pouring a molten filling material into a gap in the mold and forming the filling section, at least a portion of the filling section being positioned between the outer cores, and separating the scrap portion and the core plate portions from each other.

公开(公告)号：US20190190326A1

公开(公告)日：2019-06-20

申请号：US16282473

申请日：2019-02-22

Applicant: Nidec Corporation

Inventor： Yasuaki NAKAHARA ,  Takayuki MIGITA ,  Hiroshi KITAGAKI ,  Takeshi HONDA ,  Hisashi FUJIHARA

IPC: H02K1/14 ,  H02K15/02

CPC classification number: H02K1/148 ,  H02K1/18 ,  H02K15/02 ,  H02K15/022

Abstract: A stator includes a core with an annular shape including a center that is a vertically extending central axis. The core includes core pieces in which first and second laminate members are laminated. The first laminate member includes a first tooth portion extending in a radial direction and a first core back portion extending in a circumferential direction. The first core back portion includes a first protrusion on one side thereof in the circumferential direction and a first recess on the other side thereof in the circumferential direction. The second laminate member includes a second tooth portion extending in a radial direction and a second core back portion extending in a circumferential direction. The second core back portion includes a second recess on one side thereof in the circumferential direction and a second protrusion on the other side thereof in the circumferential direction. In the first protrusion, the one side in the circumferential direction is thicker in a lamination direction than the other side in the circumferential direction, and in the second protrusion, the other side in the circumferential direction is thicker in the lamination direction than the one side in the circumferential direction.

公开(公告)号：US20190149014A1

公开(公告)日：2019-05-16

申请号：US16245482

申请日：2019-01-11

Applicant: Nidec Corporation

Inventor： Hidehiro HAGA ,  Ryusuke SATO ,  Yosuke YAMADA ,  Yasuaki NAKAHARA

IPC: H02K5/22 ,  H02K3/28 ,  H02K3/52 ,  H02K29/08 ,  H02K11/30 ,  H02K3/50

Abstract: A motor includes a bus bar assembly including a bus bar, a wiring member, and a bus bar holder. The bus bar holder includes a main body portion, a bottom portion, and a first circuit board support portion. The wiring member includes a circuit board connection terminal electrically connected to the circuit board. The circuit board connection terminal includes a contact portion connected to the circuit board, and applies force to the circuit board through the contact portion. The first circuit board support portion is disposed at a region of the bottom portion to define a side at which the circuit board connection terminal is located when viewed from one direction. The first circuit board support portion and the contact portion are located at different positions when viewed from the one direction.

公开(公告)号：US20190068009A1

公开(公告)日：2019-02-28

申请号：US16170170

申请日：2018-10-25

Applicant: Nidec Corporation

Inventor： Yasuaki NAKAHARA ,  Takayuki MIGITA ,  Hiroshi KITAGAKI ,  Takeshi HONDA ,  Hisashi FUJIHARA

IPC: H02K1/14 ,  H02K15/02

Abstract: A stator includes an annular core including a central axis. The core includes core pieces including first and second laminate members. The first laminate member includes a first tooth portion extending in a radial direction, and a first core back portion connected to the first tooth portion and extending in a circumferential direction. The second laminate member includes a second tooth portion extending in a radial direction, and a second core back portion connected to the second tooth portion and extending in a circumferential direction. Positions of circumferential ends of the first core back portion are different from positions of circumferential ends of the second core back. The first core back portion includes a first protrusion on one side thereof in the first circumferential direction. The first protrusion is in contact with one of the core pieces adjacent thereto at one point.