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    • 1. 发明专利
    • Manufacturing method of divided stator core
    • 分体定子芯的制造方法
    • JP2009225504A
    • 2009-10-01
    • JP2008064596
    • 2008-03-13
    • Toyota Motor Corpトヨタ自動車株式会社
    • HIRAOKA MOTOKIKANEDA TAKASUKETAKAHASHI TOSHIMITSU
    • H02K15/02H02K1/18
    • PROBLEM TO BE SOLVED: To provide a manufacturing method of a divided stator core which is suppressed in the deterioration of its magnetic characteristic caused by a pressing force acting at shrink-fit processing without causing an increase of manufacturing cost.
      SOLUTION: The manufacturing method of the divided stator core is composed of: a first process for thermally expanding a cylindrical body 20 by preparing an annular sidewall 21 having an internal hollow diameter having a magnitude larger than a diameter of a core body 100 composed of divided cores 10 and having an internal hollow height lower than the height of the core body 100, flanges 22 protruding toward the inside of the radial direction at both ends of the annular sidewall 21, and the cylindrical body 20; a second process for forming the circular ring-shaped core body 100 in the cylindrical body 20 while being thermally expanded; and a third process for fastening the core body 100 by imparting a pressing force in the height direction to the core body 100 by using the flanges 22 by shrinking the cylindrical body 20.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种分割定子铁心的制造方法,其抑制由于在缩缩配合加工中的作用力引起的磁特性的劣化,而不会导致制造成本的增加。 解决方案:分割的定子铁心的制造方法由以下部分组成:用于通过制备具有大于芯体100的直径的内径中空直径的环形侧壁21来热膨胀圆柱形主体20的第一工艺 由分割铁芯10组成,具有比芯体100的高度低的内部空心高度;在环状侧壁21的两端向径向内侧突出的凸缘22和圆筒体20; 用于在圆筒体20中热膨胀的同时形成圆环形芯体100的第二工序; 以及通过使圆柱体20收缩而通过使用凸缘22向芯体100施加高度方向的压力来紧固芯体100的第三工序。(C)2010,JPO&INPIT
    • 3. 发明专利
    • Stator and motor
    • 定子和电机
    • JP2011147312A
    • 2011-07-28
    • JP2010008219
    • 2010-01-18
    • Toyota Motor Corpトヨタ自動車株式会社
    • KANEDA TAKASUKETAKAHASHI TOSHIMITSU
    • H02K3/04
    • Y02T10/641
    • PROBLEM TO BE SOLVED: To provide a stator for a motor which can increase a space factor of a coil, can suppress an eddy loss which may be generated at a conductor facing a slot opening, and is improved in torque performance, and to provide the motor equipped with the stator. SOLUTION: In a stator core 10 composed of a yoke 12 which is formed into a substantially annular or arc shape in a plane view, and teeth 11 which protrude radially inward from the yoke 12, the stator 100 is formed with the coil which is formed by winding the conductor 20 around the external periphery of each of the teeth 11, the coil is composed of a single conductor in which two or more kinds of divided conductors different in dimensions of cross sections are connected to each other, the divided conductors (round cross-section conductors 22) which are relatively small in the dimensions of the cross sections are arranged at radial tip sides of the teeth 11, and the divided conductors (rectangular wires 21) which are relatively large in the dimensions of the cross sections are arranged at the yoke side. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:为了提供一种可以增加线圈的空间因数的电动机的定子,可以抑制在面向槽口的导体处可能产生的涡流损耗,并且扭矩性能得到改善,以及 为配备有定子的电机提供。 解决方案:在由平面图形成为大致环形或弧形的磁轭12构成的定子铁心10和从磁轭12径向向内突出的齿11中,定子100形成有线圈 通过将导体20绕在每个齿11的外周面而形成,线圈由单个导体构成,其中横截面尺寸不同的两种或更多种分割导体彼此连接,分割 横截面尺寸相对较小的导体(圆形横截面导体22)布置在齿11的径向尖端侧,并且横列尺寸相对较大的分隔导体(矩形导线21) 部分布置在轭侧。 版权所有(C)2011,JPO&INPIT
    • 4. 发明专利
    • Stator core and motor
    • 定子芯和电机
    • JP2008271713A
    • 2008-11-06
    • JP2007112075
    • 2007-04-20
    • Toyota Motor Corpトヨタ自動車株式会社
    • KANEDA TAKASUKETANIGAWA MASAHIRO
    • H02K1/16
    • Y02T10/641
    • PROBLEM TO BE SOLVED: To provide a stator core capable of effectively inhibiting the rotating magnetic field generated thereon, the cause of causing core loss, and a motor capable of improving the motor efficiency by having the stator core. SOLUTION: Electromagnetic steel sheets 1, 1, 1 are laminated to integrally form the stator core 10. The end portions of teeth 11 facing a rotor 20 are formed with recessed grooves 11A, 11A extending toward the height direction of the teeth. A rod 2A composed of a dust core can be embedded in the recessed groove 11A. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够有效地抑制其上产生的旋转磁场,引起铁芯损耗的原因的定子铁心和能够通过使定子铁芯提高电动机效率的电动机。 解决方案:电磁钢板1,1,1层压成一体地形成定子铁芯10.与转子20相对的齿11的端部形成有朝向齿的高度方向延伸的凹槽11A,11A。 由防尘芯构成的杆2A可嵌入在凹槽11A中。 版权所有(C)2009,JPO&INPIT
    • 5. 发明专利
    • Driver
    • DRIVER
    • JP2006115567A
    • 2006-04-27
    • JP2004297968
    • 2004-10-12
    • Toyota Motor Corpトヨタ自動車株式会社
    • KANEDA TAKASUKE
    • H02K41/06
    • PROBLEM TO BE SOLVED: To provide a driver producing a large torque efficiently while minimizing the pulsation of torque.
      SOLUTION: At least one planetary gear 3 meshing a gear train 21a formed at the distal end of the magnetic pole 21 of a cylindrical stator 2 is revolved along the inner circumferential surface of the stator 2, and the driver 1 rotates the central shaft member 4 of the stator 2 meshing the planetary gear 3 through revolution of the planetary gear 3. Magnetic attraction is generated between the magnetic pole 21 and the planetary gear 3 by forming magnetic paths around respective magnetic poles 21, 21, .... When the planetary gear 3 is attracted to the magnetic pole 21, the planetary gear 3 revolves along the inner circumferential surface of the stator 2 while meshing the gear trains 21a, 21a, ... at the distal end of the magnetic pole 21.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供在有效地产生大扭矩的驱动器的同时最小化扭矩的脉动。 解决方案:将形成在圆柱形定子2的磁极21的远端处的齿轮系21a啮合的至少一个行星齿轮3沿着定子2的内周面旋转,并且驾驶员1旋转中心 定子2的轴构件4通过行星齿轮3的旋转而啮合行星齿轮3.通过在各个磁极21,21 ...周围形成磁路,在磁极21与行星齿轮3之间产生磁吸引。 当行星齿轮3被吸引到磁极21时,行星齿轮3沿着定子2的内周面旋转,同时啮合磁极21的远端处的齿轮系21a,21a,...。 P>版权所有(C)2006,JPO&NCIPI
    • 6. 发明专利
    • Switched reluctance motor
    • 开关式电动机
    • JP2005160203A
    • 2005-06-16
    • JP2003395122
    • 2003-11-26
    • Toyota Motor Corpトヨタ自動車株式会社
    • KANEDA TAKASUKETAKAHASHI TOSHIMITSUSAIDA HISAMITSU
    • H02K1/14H02K1/24H02K19/10
    • PROBLEM TO BE SOLVED: To provide a switched reluctance motor in which a torque can be easily improved without increasing a size.
      SOLUTION: The switched reluctance motor 10 includes the salient pole 12a of a stator 12 and the salient pole 14a of a rotor 14 present on a plane including the rotary shaft 18 of the rotor 14, at least parts of the outlines 12b and 14b of which salient poles 12a and 14a become non-parallel with the rotary shaft 18 of the rotor 14. As a result, the length of the outlines opposed on the plane when the salient pole 14a of the rotor 14 approaches the salient pole 12a of the stator 12 is increased as compared with the case that the outlines of the salient poles 12a, 14a are parallel to the rotary shaft 18, and the attraction area when the salient pole 14a of the rotor 14 approaches the salient pole 12a of the stator 12 is increased. As a result, the rotary torque of the rotor 14 is improved. At this time, since only the salient poles 12a, 14a are changed, the switched reluctance motor 10 is not increased in size.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种开关磁阻电动机,其中可以容易地改善扭矩而不增加尺寸。 解决方案:开关磁阻电动机10包括定子12的凸极12a和存在于包括转子14的旋转轴18的平面上的转子14的凸极14a,至少部分轮廓12b和 14b,其中凸极12a和14a与转子14的旋转轴18不平行。结果,当转子14的凸极14a接近转子14的凸极12a时,在平面上相对的轮廓的长度 与凸极12a,14a的轮廓平行于旋转轴18的情况以及转子14的凸极14a接近定子12的凸极12a的情况相比,定子12增加 增加了。 结果,转子14的转矩提高。 此时,由于只有突极12a,14a发生变化,所以开关磁阻电动机10的尺寸不增大。 版权所有(C)2005,JPO&NCIPI
    • 7. 发明专利
    • Switched reluctance motor
    • 开关式电动机
    • JP2004248370A
    • 2004-09-02
    • JP2003033531
    • 2003-02-12
    • Toyota Motor Corpトヨタ自動車株式会社
    • SAIDA HISAMITSUKANEDA TAKASUKE
    • H02K19/10H02K1/27H02K21/24
    • PROBLEM TO BE SOLVED: To provide a switched reluctance motor for driving an automobile, having less pulsation, even when it is rotated at a low speed of about 500 rpm.
      SOLUTION: An SR motor comprises a stator core 22 over which a conductive wire is wound, and a rotor 11 comprising winding cores 13, which are a plurality of salient poles that face the stator cores 22. Permanent magnets 14a, 14b, 14c and 14d are arranged at all intermediate positions of the winding cores 13, and the permanent magnets 14a, 14b, 14c, and 14d, arranged on both sides of the winding cores 13, have different magnetic poles from each other.
      COPYRIGHT: (C)2004,JPO&NCIPI
    • 要解决的问题:即使当以约500rpm的低速旋转时,提供用于驱动汽车的开关磁阻电动机,具有较少的脉动。 解决方案:SR电动机包括定子芯22,导线被缠绕在该定子芯22上,转子11包括作为与定子芯22相对的多个凸极的绕组芯13。永磁体14a,14b, 14c和14d布置在绕组芯13的所有中间位置,并且布置在绕组芯13两侧的永磁体14a,14b,14c和14d具有彼此不同的磁极。 版权所有(C)2004,JPO&NCIPI
    • 9. 发明专利
    • Rare earth magnet and method of producing the same
    • 稀土磁铁及其制造方法
    • JP2012169464A
    • 2012-09-06
    • JP2011029445
    • 2011-02-15
    • Toyota Central R&D Labs IncToyota Motor Corpトヨタ自動車株式会社株式会社豊田中央研究所
    • KANEKO YUJITAKAO HISAFUMITAKADA YUKIOHIRAOKA MOTOKIKANEDA TAKASUKE
    • H01F41/02H01F1/057H01F1/08
    • H01F1/086B22F3/1007B22F3/24B22F2003/241B22F2203/11B22F2207/01C22C1/00C22C1/02C22C38/002C22C38/005C22C38/10C22C38/16C22C2202/02H01F1/0577H01F41/005H01F41/0266H01F41/0293
    • PROBLEM TO BE SOLVED: To provide a method of producing a rare earth magnet in which Dy, or the like, can be diffused to the inside efficiently in a short time.SOLUTION: The method of producing a rare earth magnet comprises: an arrangement step of arranging a magnet material, i.e. a molding or a sintered compact of powder particles composed of a rare earth magnet alloy, and a diffusion material containing a diffusion element for enhancing the coercive-force in close proximity; and a diffusion step of diffusing the diffusion elements into the magnet material by exposing a heated magnet material to vapor of the diffusion material evaporated from a heated diffusion material. The diffusion step is a step of heating the diffusion material to a diffusion material temperature (Td) different from a magnet material temperature (Tm), i.e. the heating temperature of the magnet material, independently therefrom. Since diffusion processing is performed while setting the magnet material temperature (Tm) and the diffusion material temperature (Td) separately, the diffusion elements can be diffused to the inside of the magnet efficiently even by heating of very short time.
    • 要解决的问题:提供一种可以在短时间内有效地将Dy等稀释到内部的稀土类磁体的制造方法。 解决方案:制造稀土磁体的方法包括:布置磁体材料的布置步骤,即由稀土磁体合金构成的粉末颗粒的模制件或烧结体,以及包含扩散元件的扩散材料 用于增强邻近的矫顽力; 以及扩散步骤,通过将加热的磁体材料暴露于从加热的扩散材料蒸发的扩散材料的蒸气,将扩散元件扩散到磁体材料中。 扩散步骤是将扩散材料加热到与磁体材料温度(Tm)不同的扩散材料温度(Td),即与磁体材料的加热温度独立地加热的步骤。 由于在分别设定磁体材料温度(Tm)和扩散材料温度(Td)的同时进行扩散处理,因此即使通过非常短的时间的加热,扩散元件也能够有效地扩散到磁体的内部。 版权所有(C)2012,JPO&INPIT
    • 10. 发明专利
    • Rotor of rotary electric machine and its manufacturing method
    • 旋转电机转子及其制造方法
    • JP2008283823A
    • 2008-11-20
    • JP2007127044
    • 2007-05-11
    • Toyota Motor Corpトヨタ自動車株式会社
    • KOGURE TOMOYAKANEDA TAKASUKEHIRAGA MASAAKI
    • H02K1/27H02K1/22H02K15/02H02K15/03
    • H02K1/2766Y10T29/49012
    • PROBLEM TO BE SOLVED: To provide a rotor of a rotary electric machine enhanced in demagnetization resistance while suppressing cost increase. SOLUTION: The rotor 104 includes a rotor core 105 and permanent magnets 111, 112, 121, 122 embedded in the rotor core. The permanent magnet 111 includes a first surface which is mainly a plane surface toward a stator side and a second surface which is a reverse surface of the first surface wherein the second surface has a shape so that both ends in the direction orthogonal with the magnetization direction of the permanent magnet are thickened in the magnetization direction from the center part at both ends, in cross section orthogonal with the rotary shaft 106, that is a cross section shown in Fig.1. The cross section orthogonal with the rotary shaft of the permanent magnet is substantially rectangular and a recessed part is provided to the center part of the side included in the second surface of rectangular four sides. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种在抑制成本增加的同时提高消磁阻力的旋转电机的转子。 解决方案:转子104包括转子芯105和嵌入转子芯中的永磁体111,112,121,122。 永磁体111包括主要是朝向定子侧的平面的第一表面和作为第一表面的反面的第二表面,其中第二表面具有使得在与磁化方向正交的方向上的两端 的永磁体在与旋转轴106正交的剖面的两端的中心部分的磁化方向上增厚,即图1所示的横截面。 与永磁体的旋转轴正交的截面基本上是矩形的,并且在包括在矩形四边的第二表面中的一侧的中心部分设置有凹部。 版权所有(C)2009,JPO&INPIT