公开(公告)号：US20140111884A1

公开(公告)日：2014-04-24

申请号：US14052022

申请日：2013-10-11

Applicant: MINEBEA CO., LTD.

Inventor： Hideaki SHOWA ,  Ryoichi KUROSAWA ,  Hironobu TSUGE

IPC: G11B19/20 ,  H02K1/12

CPC classification number: G11B19/2009 ,  H02K1/146 ,  H02K21/22 ,  H02K2201/09 ,  H02K2213/03

Abstract: A thin spindle motor having a stator core with sufficient swaging strength even using thin magnetic steel sheets is provided, whereby the magnetic loss and the power consumption of the spindle motor are reduced. The stator core is formed by laminating plural stator laminations with a thickness of 0.1 to 0.2 mm and joined by a swaging portion. The swaging portion has an approximately rectangular shape having long sides extending along a radial direction when viewed from an axial direction. The swaging portion has a cross section with a middle portion parallel to the radial direction and a slope portion at the both sides when viewed from a circumferential direction, thereby forming a recess. The recess has a depth that is less than the thickness of the stator lamination whereby the swaging portion does not cut the stator lamination.

Abstract translation: 提供了一种具有即使使用薄的电磁钢板也具有足够的模锻强度的定子芯的细主轴电动机，由此减小了主轴电动机的磁损耗和功率消耗。 定子铁芯通过层压多个0.1〜0.2mm的定子叠片而形成，并通过型锻部分连接。 模锻部具有从轴向观察时具有沿径向延伸的长边的大致矩形形状。 该锻模部具有从圆周方向观察时具有平行于半径方向的中间部分的中间部分和两侧的倾斜部分的横截面，从而形成凹部。 该凹部的深度小于定子层压体的厚度，由此，型锻部不切断定子层叠体。

公开(公告)号：US20140062252A1

公开(公告)日：2014-03-06

申请号：US14013036

申请日：2013-08-29

Applicant: HONDA MOTOR CO., LTD.

Inventor： Kentaro NAGAHIRO ,  Jiro KUROKI

IPC: H02K1/28

CPC classification number: H02K1/28 ,  H02K1/2766 ,  H02K2201/09

Abstract: A rotating electric machine includes a stator and a rotor. The rotor includes a plurality of permanent magnets and a rotor core. The plurality of permanent magnets are to form magnetic poles. The rotor core includes stacked steel sheets, magnet holes, a plurality of cutouts, and fixing elements. The magnet holes are provided in the stacked steel sheets. The plurality of permanent magnets are provided in the magnet holes. The plurality of cutouts are provided between the plurality of permanent magnets located adjacent in a circumferential direction of the rotor core to form different magnetic poles. The fixing elements are to fix the steel sheets to each other. The fixing elements are provided at positions on an outer peripheral side of inner peripheral end portions of the cutouts and between the cutouts and the magnet holes.

Abstract translation: 旋转电机包括定子和转子。 转子包括多个永磁体和转子铁芯。 多个永磁体形成磁极。 转子芯包括堆叠的钢板，磁体孔，多个切口和固定元件。 磁体孔设置在堆叠的钢板中。 多个永磁体设置在磁体孔中。 多个切口设置在位于与转子芯的周向相邻的多个永磁体之间，以形成不同的磁极。 固定元件将钢板彼此固定。 固定元件设置在切口的内周端部的外周侧和切口与磁体孔之间的位置。

公开(公告)号：US20130187514A1

公开(公告)日：2013-07-25

申请号：US13877873

申请日：2011-09-27

Applicant: Kazuo Iwata ,  Yoshinobu Mino

Inventor： Kazuo Iwata ,  Yoshinobu Mino

IPC: H02K1/18

CPC classification number: H02K1/185 ,  H02K1/16 ,  H02K15/024 ,  H02K2201/09

Abstract: A stator core comprises a circumferentially deformable part formed on a radially outer peripheral side of a yoke; circumferentially facing divided parts formed on a radially inner peripheral side of the yoke, each having a dividing line that is oriented in a radial direction and reaches a portion between teeth and divided surfaces that face each other without a gap; and radially facing divided parts formed at the center between the radially inner and outer sides of the yoke along the circumferential direction at the predetermined interval, and each having divided surfaces that face each other in the radial direction, and being continuous at one ends with the respective circumferentially facing divided parts. The circumferentially facing divided parts each have a compressive stress being smaller than a compressive stress acting on the circumferentially deformable part or being zero.

Abstract translation: 定子芯包括形成在轭的径向外周侧的周向变形部分; 沿圆周方向形成在磁轭的径向内周侧上的分隔部分，每个分隔部分具有沿径向定向的分隔线，并且到达齿与齿间相互分开的部分; 并且沿着圆周方向以预定间隔形成在磁轭的径向内侧和外侧之间的中心处的径向面对的分隔部分，并且每个具有在径向方向上彼此面对的分开的表面，并且在一端与 各自周向地分开的部分。 周向面对的分开的部分各自具有小于作用在周向可变形部分上的压缩应力或为零的压缩应力。

公开(公告)号：US08485238B2

公开(公告)日：2013-07-16

申请号：US13090341

申请日：2011-04-20

Applicant: Kazuyuki Hirata

Inventor： Kazuyuki Hirata

IPC: B29C65/00 ,  B32B37/00 ,  B32B38/04 ,  B32B38/10

CPC classification number: H02K15/02 ,  H02K2201/09 ,  Y10T156/13 ,  Y10T156/1304

Abstract: Punching structures each include a die, a punch that cooperates with the die to stamp a workpiece, a die supporting member that applies lateral pressure to core pieces stamped out from the workpiece, and a counter pressure applying mechanism that applies counter pressure toward the punch to the core pieces from the side opposite to the punch. The punching structures also include selecting mechanisms, respectively. The punching structures laminate core pieces while applying lateral pressure and counter pressure to the core pieces. The punching structures are arranged along the conveyance direction of the workpiece. The selecting mechanisms select one of the punching structures to be put in a pause state, so that one of the punching structures is put in a pause state during a stamping operation of the punching structures.

Abstract translation: 冲压结构各自包括模具，与模具配合以冲压工件的冲头，对从工件冲压的芯片施加侧向压力的模具支撑构件以及向冲头施加反压力的反压力施加机构， 核心件从与冲头相反的一侧。 冲孔结构还分别包括选择机构。 冲压结构层压芯片，同时向芯片施加横向压力和反压力。 冲孔结构沿工件的输送方向布置。 选择机构选择要处于暂停状态的冲压结构中的一个，使得冲压结构中的一个在冲压结构的冲压操作期间处于暂停状态。

公开(公告)号：US20130134826A1

公开(公告)日：2013-05-30

申请号：US13652916

申请日：2012-10-16

Applicant: TOYOTA BOSHOKU KABUSHIKI KAISHA

Inventor： Kazuyuki HIRATA

IPC: B32B15/01 ,  H02K1/06 ,  B23P11/00

CPC classification number: H02K1/06 ,  H02K2201/09 ,  Y10T29/49908 ,  Y10T428/12347

Abstract: A core is formed by laminating a plurality of core plates. Each of the core plates includes a joint portion for joining the core plates together in the laminated state. Each of the joint portions includes a fixing piece, a passage hole, a receiving portion, and an opening. Each of the fixing pieces is raised in the direction in which the core plates are laminated. Each of the passage holes receives the fixing piece of the corresponding adjacent one of the core plates.The fixing piece in the passage hole is bent to join the receiving portion to the adjacent core plate. Each of the openings receives the corresponding one of the fixing pieces to avoid interference with the fixing piece bent onto the receiving portion of another core plate.

Abstract translation: 通过层压多个芯板形成芯。 每个芯板包括用于在层压状态下将芯板连接在一起的接合部分。 每个接合部分包括固定片，通孔，接收部分和开口。 每个固定片沿堆叠芯板的方向升高。 每个通孔接收相应的相邻一个芯板的固定片。 弯曲通道孔中的固定件将接纳部分接合到相邻的芯板。 每个开口都接收相应的一个固定件，以避免与弯曲在另一个芯板的接收部分上的固定件干涉。

公开(公告)号：US08141233B2

公开(公告)日：2012-03-27

申请号：US11746552

申请日：2007-05-09

Applicant: Alberto Malvestiti ,  Claudio Malvestiti ,  Sergio Confalonieri

Inventor： Alberto Malvestiti ,  Claudio Malvestiti ,  Sergio Confalonieri

IPC: H02K15/02 ,  H02K15/10

CPC classification number: H02K15/024 ,  H02K1/26 ,  H02K2201/06 ,  H02K2201/09 ,  Y10T29/49002 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49078

Abstract: A method for manufacturing a lamination for electro motor rotors that have skew or helical slots by forming at least one boss on a face of the lamination and reducing a thickness of a first portion of the boss. The reduction in thickness may be by carrying out a localized narrowing of the thickness of the first portion and the boss may be manufactured by pressing the lamination. The localized narrowing may be carried out by misalignment of a die relative to a punch within a mould.

Abstract translation: 一种用于制造电动机转子的层压方法，其通过在所述层压体的表面上形成至少一个凸台并且减小所述凸台的第一部分的厚度而具有歪斜或螺旋槽。 厚度的减小可以是通过执行第一部分的厚度的局部变窄，并且可以通过压制层压来制造凸台。 局部变窄可以通过模具相对于模具内的冲头的未对准来进行。

公开(公告)号：US20120048471A1

公开(公告)日：2012-03-01

申请号：US13186972

申请日：2011-07-20

Applicant: Kazuyuki HIRATA ,  Shirou FUJIMURA ,  Hajime BANNO

Inventor： Kazuyuki HIRATA ,  Shirou FUJIMURA ,  Hajime BANNO

IPC: B29C65/80

CPC classification number: B32B38/04 ,  B21D28/22 ,  B29C66/45 ,  B29C66/8322 ,  B32B37/0046 ,  H02K15/02 ,  H02K2201/09 ,  Y10T29/49012 ,  Y10T29/53143 ,  Y10T156/1304 ,  Y10T156/1322 ,  Y10T156/1761

Abstract: A rotary lamination apparatus has a die assembly rotatable about an axis and a mounting table received in an axial hole extending through the die assembly. Through rotation of the die assembly, punched core pieces are mounted on the mounting table while being rotatively offset. A drive mechanism is employed to rotate the mounting table integrally with the die assembly about the axis of the die assembly.

Abstract translation: 旋转层压装置具有可围绕轴线旋转的模具组件和容纳在延伸穿过模具组件的轴向孔中的安装台。 通过模具组件的旋转，冲压的芯片被安装在安装台上同时被旋转地偏移。 使用驱动机构来使安装台与模具组件一体地围绕模具组件的轴线旋转。

公开(公告)号：US20110277939A1

公开(公告)日：2011-11-17

申请号：US13090341

申请日：2011-04-20

Applicant: Kazuyuki HIRATA

Inventor： Kazuyuki HIRATA

IPC: B32B38/10

CPC classification number: H02K15/02 ,  H02K2201/09 ,  Y10T156/13 ,  Y10T156/1304

Abstract: Punching structures each include a die, a punch that cooperates with the die to stamp a workpiece, a die supporting member that applies lateral pressure to core pieces stamped out from the workpiece, and a counter pressure applying mechanism that applies counter pressure toward the punch to the core pieces from the side opposite to the punch. The punching structures also include selecting mechanisms, respectively. The punching structures laminate core pieces while applying lateral pressure and counter pressure to the core pieces. The punching structures are arranged along the conveyance direction of the workpiece. The selecting mechanisms select one of the punching structures to be put in a pause state, so that one of the punching structures is put in a pause state during a stamping operation of the punching structures.

Abstract translation: 冲压结构各自包括模具，与模具配合以冲压工件的冲头，对从工件冲压的芯片施加侧向压力的模具支撑构件以及向冲头施加反压力的反压力施加机构， 核心件从与冲头相反的一侧。 冲孔结构还分别包括选择机构。 冲压结构层压芯片，同时向芯片施加横向压力和反压力。 冲孔结构沿工件的输送方向布置。 选择机构选择要处于暂停状态的冲压结构中的一个，使得冲压结构中的一个在冲压结构的冲压操作期间处于暂停状态。

公开(公告)号：US08048509B2

公开(公告)日：2011-11-01

申请号：US10250848

申请日：2002-05-23

Applicant: Katsufusa Fujita

Inventor： Katsufusa Fujita

IPC: B32B3/24 ,  H01F3/02

CPC classification number: H02K1/06 ,  H02K15/022 ,  H02K2201/09 ,  Y10T29/49009 ,  Y10T29/49078 ,  Y10T428/12347 ,  Y10T428/24273 ,  Y10T428/24289 ,  Y10T428/24298 ,  Y10T428/24322 ,  Y10T428/24479 ,  Y10T428/24612 ,  Y10T428/24628 ,  Y10T428/325

Abstract: Thin sheets of magnetic material are subjected to a pressing process to stamp many sheets of core pieces, and caulking projections defined in the core pieces are caused to go into connecting through holes defined in the core pieces for connecting and laminating to produce a laminated core. In lower layer of the core pieces having the caulking projections arranged in different positions seeing in plan, at least two sheets of core pieces and other core pieces having the connecting through holes are provided. The caulking projections defined in the core pieces have projecting length of at least twice of thickness of the core pieces, and are fitted in the connecting through holes, so that upper and lower laminated core pieces are unified.

Abstract translation: 对薄片的磁性材料进行压制处理以印模许多芯片，并且使芯片中限定的铆接凸起进入用于连接和层压的芯片中限定的连接孔，从而生产层压芯。 在具有布置在平面图中的不同位置的铆接突起的芯片的下层中，提供具有连接通孔的至少两片芯片和其他芯片。 芯片中限定的铆接突起的突出长度为芯片厚度的至少两倍，并且嵌合在连接通孔中，使得上层和下层叠的芯片是一体的。

公开(公告)号：US20110142696A1

公开(公告)日：2011-06-16

申请号：US13057882

申请日：2009-08-07

Applicant: Hiroaki Kojima ,  Kazuo Ida ,  Yoshihiro Kataoka ,  Azusa Ujihara

Inventor： Hiroaki Kojima ,  Kazuo Ida ,  Yoshihiro Kataoka ,  Azusa Ujihara

IPC: F04B35/04 ,  H02K1/18

CPC classification number: H02K29/03 ,  F04C23/008 ,  F04C29/0085 ,  H02K1/146 ,  H02K2201/09 ,  H02K2213/03

Abstract: A stator includes a stator core, which has a plurality of stacked electromagnetic steel sheets, caulking portions configured to fix the plurality of electromagnetic steel sheets to each other, and a plurality of slot portions open toward an inner circumference side and arrayed along a circumferential direction. A number Q (an integer of 1 or greater) of the caulking portions, a number S of the slot portions and a number P of the poles satisfy Q≦S and Q=P×n/2 (where n is an integer of 1 or greater). The stator is preferably part of a motor for a compressor.

Abstract translation: 定子包括：定子铁芯，其具有多个层叠的电磁钢板，铆接部，其被配置为将多个电磁钢板彼此固定;多个槽部朝向内周侧开口，沿周向排列 。 填缝部分的数量Q（1以上的整数），槽部的数量S和极数P满足Q＆nlE; S和Q = P×n / 2（其中n为1的整数 或更大）。 定子优选地是用于压缩机的电动机的一部分。