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    • 93. 发明专利
    • Axial motor and its rotor
    • 轴向电动机及其转子
    • JP2007089270A
    • 2007-04-05
    • JP2005272530
    • 2005-09-20
    • Toyota Central Res & Dev Lab Inc株式会社豊田中央研究所
    • NAKAI HIDEOYOKOI YUTAKAKASHIWABARA KANSHIN
    • H02K21/24H02K1/22H02K1/27
    • PROBLEM TO BE SOLVED: To improve the rigidity of the rotor of an axial motor, and suppress an eddy current generated in the rotor. SOLUTION: For the rotor 14, a plurality of permanent magnets 20 are arrayed apart in the peripheral direction of the rotor, and a pair of poles are constituted of a pair of adjacent permanent magnets 20. To get reluctance torque, the section of a magnetic substance 24 is arranged between each permanent magnet 20 and the next. Since beam-shaped members 30 are arranged among the pairs of poles in the rotational direction of the rotor, the quantity of magnetic flux passing between the beam-shaped members 30 does not change, so it can suppress the eddy current flowing in the beam-shaped member 30. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提高轴向马达的转子的刚性,并且抑制在转子中产生的涡流。 解决方案:对于转子14,多个永磁体20在转子的圆周方向上分开排列,并且一对磁极由一对相邻的永磁体20构成。为了获得磁阻转矩, 磁性物质24配置在各永磁体20和下一个之间。 由于梁状构件30沿转子的旋转方向配置在极对中,所以在梁状构件30之间通过的磁通量不变化,因此能够抑制在波束形状构件30中流动的涡流, 版权所有(C)2007,JPO&INPIT
    • 95. 发明专利
    • Electric motor
    • 电动马达
    • JP2006280052A
    • 2006-10-12
    • JP2005092338
    • 2005-03-28
    • Toyota Central Res & Dev Lab Inc株式会社豊田中央研究所
    • INAGUMA YUKIONAKAI HIDEOARAKAWA TOSHIFUMIHIRAMOTO KENJI
    • H02K1/18
    • PROBLEM TO BE SOLVED: To improve the efficiency of an electric motor having a split core.
      SOLUTION: A core 20 split with a foundation portion 32 split and an erect portion 34 are fastened with bolts 36. This brings a joint surface 46 of the foundation portion 32 to the erect portion 34 into close contact with each other, thus reducing magnetic resistance and improving efficiency. The bolt 36, made of non-magnetic material, reduces the number of magnetic fluxes passing through the bolt, thus reducing an eddy current developed in the bolt. Moreover, a ratio (H/D) of a distance H between a teeth front end face 48 and a bolt head top face 50 to a diameter D of a bolt hole is set at ≤0.3.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提高具有分离铁心的电动机的效率。 解决方案:用螺栓36固定用基础部分32分开的芯部20和直立部分34。这使得基础部分32的接合表面46与直立部分34彼此紧密接触,因此 降低磁阻并提高效率。 由非磁性材料制成的螺栓36减少了通过螺栓的磁通量,从而减少了螺栓中产生的涡流。 此外,齿前端面48和螺栓头顶面50之间的距离H与螺栓孔的直径D的比(H / D)设定为≤0.3。 版权所有(C)2007,JPO&INPIT
    • 96. 发明专利
    • Axial motor
    • 轴向电机
    • JP2006014466A
    • 2006-01-12
    • JP2004187037
    • 2004-06-24
    • Toyota Central Res & Dev Lab Inc株式会社豊田中央研究所
    • NAKAI HIDEOHIRAMOTO KENJIINAGUMA YUKIOKASHIWABARA KANSHINTAKEDA HIROTSUGUMORIMOTO SHIGEOSANADA MASAYUKI
    • H02K21/24H02K16/00
    • PROBLEM TO BE SOLVED: To lower the supporting rigidity of a rotor in the rotational direction there, in an axial motor where the gap between the rotor and two stators is varied.
      SOLUTION: Stators 12-1 and 12-2 are coupled, respectively, with racks 44-1 and 44-2 arranged mutually facing and the extending direction of teeth of the racks 44-1 and 44-2 is substantially in parallel with the direction of rotational axis of the rotor. A pinion 46 supported rotatably on the casing 50 mesh the racks 44-1 and 44-2 and the racks 44-1 and 44-2 move to the opposite sides, in the rotational direction of the rotor as the pinion 46 autorotates. Consequently, the gap between the rotor 10 and the stators 12-1 and 12-2 is varied and movement of the stators 12-1 and 12-2 is kept equally in the rotational direction of the rotor.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:在转子和两个定子之间的间隙变化的轴向马达中,降低转子在其旋转方向上的支撑刚度。 解决方案:定子12-1和12-2分别与相互面对的齿条44-1和44-2连接,齿条44-1和44-2的齿的延伸方向基本上平行 与转子的旋转轴线的方向。 可旋转地支撑在壳体50上的小齿轮46啮合齿条44-1和44-2,并且机架44-1和44-2在小齿轮46自转时沿转子的旋转方向移动到相对侧。 因此,转子10和定子12-1和12-2之间的间隙是变化的,并且定子12-1和12-2的运动在转子的旋转方向保持相等。 版权所有(C)2006,JPO&NCIPI
    • 98. 发明专利
    • Rotary electric machine
    • 旋转电机
    • JP2005143268A
    • 2005-06-02
    • JP2003380055
    • 2003-11-10
    • Toyota Central Res & Dev Lab Inc株式会社豊田中央研究所
    • YOKOI YUTAKAMOCHIZUKI MIYOTANIGUCHI YOSUKEKASHIWABARA KANSHININAGUMA YUKIOARAKAWA TOSHIFUMITAJIMA SHINHATTORI TAKESHIMATSUSHIMA SATORUNAKAI HIDEOOTANI HIROKI
    • H02K1/30H02K9/19H02K21/24
    • Y02T10/641
    • PROBLEM TO BE SOLVED: To provide a rotary electric machine in which a size reduction and a high performance are realized by improving a cooling method.
      SOLUTION: In the rotary electric machine, assuring of a magnetic path by the deflection of a magnetic flux line 35 and enlarging of a region 36 which can be cooled, are realized by forming a stator core 33 of a dust core material and adding a collar-like additional region 33a to this stator core 33. The reason why such a constitution is formed is because since a loss heat is generated in response to a magnetic flux in the stator core 33 and simultaneously the heat is added as the current loss of the stator coil 34 itself at the place where the magnetic flux in the stator core 33 is generated around a stator coil 34 from the stator to the magnet of a rotor, it is desired to set a refrigerant channel 36 in the region which surrounds the magnetic flux in the stator core 33. In other words, the stator core 33 is suitable to have the refrigerant channel 36 in the interior or the front surface of the stator core of the region which is not interfered with the dense part the magnetic flux line 35 generated with the stator coil 34, and passing through the interior of the stator core 33.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供通过改进冷却方法来实现尺寸减小和高性能的旋转电机。 解决方案:在旋转电机中,通过磁力线35的偏转和可冷却的区域36的扩大来确保磁路的径向,通过形成防尘芯材料的定子芯33和 向该定子芯33添加轴环状的附加区域33a。形成这种结构的原因在于,由于响应于定子铁心33中的磁通而产生损耗热量,同时加热作为电流 定子线圈34本身在定子铁心33的磁通量从定子绕转子的定子线圈34周围产生的位置处的损失,希望将制冷剂通道36设置在围绕 定子铁芯33中的磁通量。换句话说,定子铁芯33适合于在不干扰密实部分的区域的定子铁芯的内表面或前表面中具有制冷剂通道36,磁通量 升 由定子线圈34产生并穿过定子芯33的内部。(C)2005年,JPO和NCIPI
    • 100. 发明专利
    • Axial-type permanent-magnet motor
    • 轴型永磁电机
    • JP2005130692A
    • 2005-05-19
    • JP2004285536
    • 2004-09-29
    • Toyota Central Res & Dev Lab Inc株式会社豊田中央研究所
    • NAKAI HIDEOINAGUMA YUKIOARAKAWA TOSHIFUMIHATTORI TAKESHITAJIMA SHINMATSUSHIMA SATORUKASHIWABARA KANSHIN
    • H02K21/24H02K1/27
    • PROBLEM TO BE SOLVED: To provide an axial-type permanent-magnet motor capable of easily being set to suppress generation of cogging torque, while preventing decrease in the torque of the motor.
      SOLUTION: In this axial-type permanent-magnet motor, contours 24a, 20a of a coil 24 and a permanent magnet 20 are in such a direction that the direction crosses a rotor rotational direction are set to be approximately a straight-line shape, and the contour 24a of the coil 24 and the contour 20a of the permanent magnet 20 are set so as to contact/separate from each other in a rotor rotating direction in an non-parallel condition, when the rotor rotates. Therefore, when a magnetic pole by the permanent magnet 20 passes through a magnetic pole by the stator coil 24 during the rotation of the rotor, fluctuations in the flux gradually change with the rotational speed of the rotator, so that rapid torque fluctuations are suppressed, and cogging torque is relieved.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种轴向型永磁电动机,其能够容易地设定为抑制齿槽转矩的产生,同时防止电动机的转矩降低。 解决方案:在这种轴向永磁电动机中,线圈24和永磁体20的轮廓24a,20a处于沿着转子旋转方向交叉的方向被设定为大致直线 形状,并且当转子旋转时,线圈24的轮廓24a和永磁体20的轮廓20a被设定为在转子旋转方向上以非平行状态彼此接触/分离。 因此,当永磁体20的磁极在转子旋转期间通过定子线圈24的磁极时,磁通的波动随着转子的旋转速度而逐渐变化,从而抑制快速的转矩波动, 齿槽转矩减轻。 版权所有(C)2005,JPO&NCIPI