公开(公告)号：US06864605B2

公开(公告)日：2005-03-08

申请号：US10420586

申请日：2003-04-21

Applicant: Yasuo Shimizu ,  Atsuhiko Yoneda ,  Hitoshi Shiobara ,  Takashi Kuribayashi

Inventor： Yasuo Shimizu ,  Atsuhiko Yoneda ,  Hitoshi Shiobara ,  Takashi Kuribayashi

IPC: B62D5/04 ,  H02K1/14 ,  H02K1/18 ,  H02K1/27 ,  H02K7/116 ,  H02K21/14 ,  H02K29/00 ,  H02K29/03 ,  H20K7/00

CPC classification number: H02K1/278 ,  B62D5/0403 ,  H02K1/148 ,  H02K7/1166 ,  H02K29/03 ,  H02K2201/06

Abstract: Brushless motor is provided which includes an outer stator and an inner rotor having a plurality of permanent magnets. One or inner surface of the outer stator, opposed to the inner rotor, is covered with a cover formed of a magnetic material and in the shape of a cylinder of a small wall thickness. The magnetic cover has a plurality of slits inclined with respect to the rotational axis of the inner rotor. Magnetic portions formed or left between the slits of the cover are also inclined with respect to the rotational axis of the inner rotor. With such magnetic portions, boundaries between magnetic poles are virtually inclined with respect to the rotational axis of the inner rotor, so that undesired cogging torque of the motor can be minimized.

Abstract translation: 提供了包括外定子和具有多个永磁体的内转子的无刷电动机。 与内转子相对的外定子的一个或内表面被由磁性材料形成的盖子覆盖，并且形成为小壁厚的圆筒形。 磁性盖具有相对于内转子的旋转轴线倾斜的多个狭缝。 在盖的狭缝之间形成或留下的磁性部分也相对于内转子的旋转轴线倾斜。 利用这种磁性部分，磁极之间的边界实质上相对于内转子的旋转轴线倾斜，使得电动机的不希望的齿槽转矩可以最小化。

公开(公告)号：US20050012475A1

公开(公告)日：2005-01-20

申请号：US10861236

申请日：2004-06-03

Applicant: Kesatoshi Takeuchi

Inventor： Kesatoshi Takeuchi

IPC: H02K29/00 ,  H02K16/02 ,  H02K16/04 ,  H02K21/24 ,  H02K29/08 ,  H02K29/10 ,  H02K51/00 ,  H02K53/00 ,  H02P5/00 ,  H02P6/04 ,  H02P7/68

CPC classification number: H02K53/00 ,  H02K51/00 ,  H02P6/04

Abstract: Provided is a drive system of a motor structured from a combined arrangement of a plurality of motors capable of reducing losses resulting from mechanical loss during the process of the driving force behind the motor being transmitted. This system has a plurality of motors mutually arranged adjacently, and a drive control unit of this motor, wherein the drive control unit drives the magnetic rotor by sending an excitation signal to at least one motor, and the magnetic rotors of the other motors are synchronously driven by the magnetic coupling with the magnetic field generated from the excitation driven magnetic rotor.

Abstract translation: 提供了一种由多个电动机的组合布置构成的电动机的驱动系统，其能够减少由于正被传递的电动机之后的驱动力的过程中的机械损失而造成的损失。 该系统具有相互相互配置的多个马达和该马达的驱动控制单元，其中驱动控制单元通过向至少一个马达发送激励信号来驱动磁转子，并且其它马达的磁转子同步 由与励磁驱动磁转子产生的磁场的磁耦合驱动。

公开(公告)号：US20050012407A1

公开(公告)日：2005-01-20

申请号：US10878370

申请日：2004-06-29

Applicant: Takenobu Kawakami ,  Kazunobu Kanno

Inventor： Takenobu Kawakami ,  Kazunobu Kanno

IPC: H02K1/22 ,  H02K1/27 ,  H02K7/00 ,  H02K29/00 ,  H02K1/04 ,  H02K5/10

CPC classification number: H02K7/003

Abstract: A rotor of a motor includes a cylindrical rotor shaft that is formed through plastic working. The shaft includes a positioning portion that is formed in an inner peripheral surface of the cylindrical shaft by the plastic working of the shaft. The positioning portion is detachably engageable with a securing member, which is insertable into the shaft in an axial direction of the shaft to position the shaft in a circumferential direction. When the positioning portion is engaged with the securing member, relative rotation between the shaft and the securing member is limited.

Abstract translation: 电动机的转子包括通过塑性加工形成的圆柱形转子轴。 轴包括通过轴的塑性加工形成在圆柱形轴的内周表面中的定位部分。 所述定位部可以与固定部件脱离接合，所述固定部件能够沿所述轴的轴向插入所述轴，以使所述轴在圆周方向上定位。 当定位部分与固定构件接合时，轴和固定构件之间的相对旋转受到限制。

公开(公告)号：US20050007043A1

公开(公告)日：2005-01-13

申请号：US10497061

申请日：2002-11-28

Applicant: Sang Kim

Inventor： Sang Kim

IPC: H02K3/28 ,  H02K29/00 ,  H02P5/06

CPC classification number: H02K3/28

Abstract: Disclosed is a multiphase brushless DC motor of a concentrated winding type having shunt connection, and a control circuit. The brushless DC motor includes a rotor made up of a permanent magnet with M number of poles, and a stator operating in K number of phases by means of windings wound on N number of teeth, wherein the plurality of windings having the same excitation phases wound on the teeth, are each maintained in shunt connection so as to improve driving torque and a rotational speed. A brushless DC motor includes a switching section having a plurality of upper switching devices and a plurality of lower switching devices connected with each other in series. Each of the windings is connected between a common joint between the upper and lower switching devices, and a common joint between a lower power supply voltage and a plurality of upper power supply voltages.

Abstract translation: 公开了具有并联连接的集中绕组型的多相无刷直流电动机和控制电路。 无刷直流电动机包括：由具有M个极数的永磁体构成的转子和通过缠绕在N个齿上的绕组以K个相位工作的定子，其中具有相同激励相缠绕的多个绕组 在齿上分别保持分流连接，以便改善驱动扭矩和转速。 无刷直流电动机包括具有多个上部开关装置和多个下部开关装置的开关部分，其彼此串联连接。 每个绕组连接在上开关装置和下开关装置之间的公共接头之间，以及在较低电源电压和多个上电源电压之间的公共接头。

公开(公告)号：US20050001502A1

公开(公告)日：2005-01-06

申请号：US10868792

申请日：2004-06-17

Applicant: Hiroyuki Yamazaki ,  Takao Ono

Inventor： Hiroyuki Yamazaki ,  Takao Ono

IPC: H02K1/22 ,  H02K1/27 ,  H02K15/03 ,  H02K29/00 ,  H02K29/03 ,  H02K21/12

CPC classification number: H02K29/03

Abstract: The DC brushless motor is capable of increasing an output power and reducing vibrations and noise. The DC brushless motor comprises: a magnet rotor, in which magnetic poles are polar-anisotropically oriented, wherein the magnetic poles are skewed with respect to an axial line of the magnet rotor.

Abstract translation: 直流无刷电机能够增加输出功率，减少振动和噪音。 DC无刷电动机包括：磁极，其中磁极是极各向异性取向的，其中磁极相对于磁体转子的轴线倾斜。

公开(公告)号：US6139487A

公开(公告)日：2000-10-31

申请号：US194725

申请日：1998-12-01

Applicant: Thorsten Siess

Inventor： Thorsten Siess

IPC: A61M1/12 ,  A61M1/10 ,  F04B49/06 ,  H02K5/08 ,  H02K5/124 ,  H02K5/128 ,  H02K5/132 ,  H02K7/14 ,  H02K11/00 ,  H02K15/02 ,  H02K15/12 ,  H02K15/14 ,  H02K21/14 ,  H02K29/00 ,  H02K49/10

CPC classification number: H02K49/104 ,  A61M1/101 ,  A61M1/1036 ,  A61M1/125 ,  H02K15/14 ,  H02K5/08 ,  H02K5/124 ,  H02K5/1285 ,  H02K5/132 ,  A61M2205/18 ,  A61M2205/33 ,  H02K11/00 ,  H02K15/02 ,  H02K21/14 ,  H02K7/145 ,  Y10S415/90 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49696

Abstract: The pump device comprises a first pump (10a) that may have its intake side inserted into the left ventricle (42) of the heart, while the delivery side is located in the aorta (40), and a second pump (10b) having its intake side arranged in the right atrium (43), whereas its delivery side is in the pulmonary artery (47). A common control unit drives both pumps in mutual dependance, the first pump (10a) taking the lead function, whereas the second pump (10b) pumps only about 90% of the volume flow of the first pump (10a). Pressure sensors at the pumps serve to determine the differential pressure between the intake side and the delivery side of a pump and to determine the volume flow. Both pumps are inserted into the heart without having to open the ventricles.

Abstract translation: PCT No.PCT / EP98 / 01868 Sec。 371日期1998年12月2日第 102（e）1998年12月2日日期PCT提交1998年3月31日PCT公布。 出版物WO98 / 43689 日期1998年10月8日该泵装置包括第一泵（10a），其可将吸入侧插入心脏的左心室（42），而输送侧位于主动脉（40）中，第二泵 （10b），其吸入侧布置在右心房（43）中，而其输送侧位于肺动脉（47）中。 共同的控制单元相互依赖地驱动两个泵，第一泵（10a）具有引导功能，而第二泵（10b）仅泵送第一泵（10a）的体积流量的约90％。 泵上的压力传感器用于确定泵的进气侧和输送侧之间的压差并确定体积流量。 两个泵都插入心脏，而不必打开心室。

公开(公告)号：US6104114A

公开(公告)日：2000-08-15

申请号：US114007

申请日：1998-07-10

Applicant: Kazuhiro Takeda ,  Hitoshi Urakami

Inventor： Kazuhiro Takeda ,  Hitoshi Urakami

IPC: G11B19/20 ,  H02K1/18 ,  H02K3/04 ,  H02K3/52 ,  H02K5/173 ,  H02K5/24 ,  H02K7/08 ,  H02K7/14 ,  H02K11/00 ,  H02K21/16 ,  H02K21/22 ,  H02K29/00 ,  H02K5/16 ,  F16C21/00 ,  H02K5/00

CPC classification number: H02K5/24 ,  H02K1/185 ,  H02K1/187 ,  H02K21/16 ,  H02K21/22 ,  H02K3/522 ,  H02K7/088 ,  H02K7/14 ,  H02K11/00

Abstract: The brushless motor according to the present invention is small in overall height without deterioration of the rotational accuracy. One of a pair of bearings is interposed between the base plate and the rotor and located on the radially outside of the other one of the bearings. A plurality of receiving holes is formed on the base plate to correspond to the teeth of the stator core to provide an axially space for respectively accommodating coils wound around the stator core. Thus, in spite of the motor having such a small axial clearance between the base plate and the rotor, sufficient amount of winding of coil is ensured. The receiving holes are closed from the outside of the motor with a sheet member and an adhesive is filled therein for fixedly securing the coil of the stator. The adhesive further acts as a damper to absorb magnetic vibration generated at the stator.

Abstract translation: 根据本发明的无刷电动机的整体高度小，而不会降低旋转精度。 一对轴承中的一个插入在基板和转子之间并且位于另一个轴承的径向外侧。 多个接收孔形成在基板上以对应于定子芯的齿，以提供用于分别容纳卷绕在定子芯上的线圈的轴向空间。 因此，尽管电动机在基板和转子之间具有如此小的轴向间隙，但确保了足够的线圈绕组。 接收孔从马达的外部用片状构件封闭，并且粘合剂被填充在其中以固定固定定子的线圈。 粘合剂还用作阻尼器以吸收在定子产生的磁振动。

公开(公告)号：US6081057A

公开(公告)日：2000-06-27

申请号：US349905

申请日：1999-07-08

Applicant: Katsuhiko Tanaka ,  Ikunori Sakatani ,  Hiromitsu Muraki ,  Shoji Moguchi

Inventor： Katsuhiko Tanaka ,  Ikunori Sakatani ,  Hiromitsu Muraki ,  Shoji Moguchi

IPC: F16C21/00 ,  F16C13/02 ,  G11B19/20 ,  H02K5/167 ,  H02K5/173 ,  H02K29/00 ,  H02K5/16

CPC classification number: F16C21/00 ,  F16C25/086 ,  H02K5/1737 ,  F16C17/026 ,  F16C19/06 ,  F16C2370/12

Abstract: In a spindle motor for a disc drive in which a rotatable body having a disc mounted thereon is rotatively driven by a motor, the rotatable body is rotatably supported on a support member through a ball bearing and a hydrodynamic fluid bearing, and a preload equal to or greater than an axial load of 1N is imparted to the ball bearing.

Abstract translation: 在其中具有安装在其上的盘的旋转主体由电动机旋转驱动的盘驱动器的主轴电机中，可旋转体通过球轴承和流体动力流体轴承可旋转地支撑在支撑构件上，并且预压力等于 或大于1N的轴向载荷。

公开(公告)号：US6058593A

公开(公告)日：2000-05-09

申请号：US194644

申请日：1998-12-01

Applicant: Thorsten Siess

Inventor： Thorsten Siess

IPC: A61M1/12 ,  A61M1/10 ,  F04B49/06 ,  H02K5/08 ,  H02K5/124 ,  H02K5/128 ,  H02K5/132 ,  H02K7/14 ,  H02K11/00 ,  H02K15/02 ,  H02K15/12 ,  H02K15/14 ,  H02K21/14 ,  H02K29/00 ,  H02K49/10 ,  H02K15/00

CPC classification number: H02K49/104 ,  A61M1/101 ,  A61M1/1036 ,  A61M1/125 ,  H02K15/14 ,  H02K5/08 ,  H02K5/124 ,  H02K5/1285 ,  H02K5/132 ,  A61M2205/18 ,  A61M2205/33 ,  H02K11/00 ,  H02K15/02 ,  H02K21/14 ,  H02K7/145 ,  Y10S415/90 ,  Y10T29/49009 ,  Y10T29/49012 ,  Y10T29/49696

Abstract: A micro motor is manufactured by slipping the parts (24a, 24b) of a stator (24) on the mandrel (60) which is placed into an injection mold (50). The motor housing is made by injecting polymer material (63), the stator parts (24a, 24b) being encapsulated in the housing. During injection, a bearing (27) is contained in the injection mold (50). Subsequently, the mandrel (60) is drawn from the stator and a prepared rotor is inserted. Thus, a cost effective and high-precision manufacture of an electric motor with very small dimensions is made possible.

Abstract translation: PCT No.PCT / EP98 / 01867 Sec。 371 1998年12月1日第 102（e）1998年12月1日日期PCT提交1998年3月31日PCT公布。 第WO98 / 44619号公报 日期1998年10月8日微型电动机通过将放置在注射模具（50）中的心轴（60）上的定子（24）的部件（24a，24b）滑动来制造。 电动机壳体通过注射聚合物材料（63）制成，定子部件（24a，24b）被封装在壳体中。 在注射期间，注射模具（50）中包含轴承（27）。 随后，心轴（60）从定子拉出并准备好转子。 因此，可以实现具有非常小尺寸的电动机的成本有效和高精度的制造。

公开(公告)号：US6040648A

公开(公告)日：2000-03-21

申请号：US235671

申请日：1999-01-22

Applicant: Naoki Kawawada ,  Hiroaki Namiki ,  Isamu Takehara ,  Tadao Iwaki ,  Takashi Ishida ,  Shinichi Hayashizaki ,  Hirotada Shimaguchi ,  Katsushige Konno

Inventor： Naoki Kawawada ,  Hiroaki Namiki ,  Isamu Takehara ,  Tadao Iwaki ,  Takashi Ishida ,  Shinichi Hayashizaki ,  Hirotada Shimaguchi ,  Katsushige Konno

IPC: F16C17/10 ,  F16C33/10 ,  H02K7/08 ,  H02K21/22 ,  H02K29/00 ,  H02K5/16 ,  F16C32/06

CPC classification number: F16C33/107 ,  F16C17/107 ,  H02K7/085

Abstract: A spindle motor having a simplified construction with reduced axial and radial deflection while avoiding the half whirl phenomenon includes a motor frame, a rotating shaft supporting a rotor, a stator and stator coil, a permanent magnet opposing the stator, and a liquid dynamic pressure bearing. Magnetic centers of the permanent magnet and stator coil, in the axial direction of the rotating shaft, are substantially matched. The liquid dynamic pressure bearing comprises opposing surfaces of the rotating shaft and the housing. The rotating shaft has a disk-shaped thrust bearing portion disposed in a first portion of a cylindrical hole of the housing, and a radial bearing portion disposed in a second portion of the cylindrical hole. Lubricating oil fills a space between the cylindrical hole and the thrust bearing portion and radial bearing portion, and a presser ring is pressed and fixed into a third portion of the cylindrical hole to seal the bearing. A boss portion of the rotor is fixed to a rotor supporting portion of the rotating shaft so that an inner peripheral surface of the boss portion mates with an outer peripheral surface of the rotor supporting portion. The rotating shaft has three axially-spaced portions, with the disk-shaped thrust bearing portion formed between and having a larger diameter than the other portions. A stage is provided between the thrust bearing portion and the rotor supporting portion to serve as a seat for installation of the boss portion.

Abstract translation: 具有减小的轴向和径向偏转同时避免半旋转现象的简化结构的主轴电机包括马达框架，支撑转子的旋转轴，定子和定子线圈，与定子相对的永磁体以及液体动压轴承 。 永久磁铁和定子线圈在旋转轴的轴向方向上的磁心基本匹配。 液体动压轴承包括旋转轴和壳体的相对表面。 旋转轴具有设置在壳体的圆筒孔的第一部分中的盘形推力轴承部分和设置在圆柱形孔的第二部分中的径向支承部分。 润滑油填充圆柱形孔与推力轴承部分和径向支承部分之间的空间，并且压紧环被压紧并固定到圆柱形孔的第三部分中以密封轴承。 转子的凸台部固定在转轴的转子支承部上，使凸台部的内周面与转子支承部的外周面配合。 旋转轴具有三个轴向间隔开的部分，其中盘形止推轴承部分形成在直径大于其它部分的直径之间。 在推力轴承部分和转子支撑部分之间设置有用作安装凸起部分的座的台架。