Permanent magnet type synchronous motor
    1.
    发明授权
    Permanent magnet type synchronous motor 失效
    永磁同步电机

    公开(公告)号:US5990591A

    公开(公告)日:1999-11-23

    申请号:US027223

    申请日:1998-02-20

    摘要: A permanent magnet type synchronous motor includes an iron core rotor having a plurality of holes which are circumferentially spaced, permanent magnets mounted in the holes, an iron core stator and coils arranged in the stator iron core. The permanent magnets are defined by a flat surface extending tangentially of the rotor, tapered surfaces formed at both ends of the flat surface and extending obliquely outward in a direction approaching each other, and an arcuate surface joining the two tapered surfaces. Each permanent magnet is supported by tapered surfaces formed at opposing ends of the holes and extending obliquely and radially outward in a direction approaching each other. When the rotor is rotated, the centrifugal force is received at the tapered surfaces of the holes, rather than at their arcuate portion.

    摘要翻译: 永磁式同步电动机包括铁心转子,铁芯转子具有周向间隔开的多个孔,安装在孔中的永磁体,铁芯定子和布置在定子铁心中的线圈。 永久磁铁由转子切向平坦的平面限定,在平坦表面的两端形成锥形表面,并且在彼此靠近的方向上倾斜向外延伸,并且连接两个锥形表面的弓形表面。 每个永磁体由形成在孔的相对端处的锥形表面支撑,并且在彼此接近的方向上倾斜并径向向外延伸。 当转子旋转时,离心力被接收在孔的锥形表面处,而不是在其弓形部分处。

    Drive apparatus for electric vehicle
    2.
    发明授权
    Drive apparatus for electric vehicle 失效
    电动车驱动装置

    公开(公告)号:US5821653A

    公开(公告)日:1998-10-13

    申请号:US849667

    申请日:1997-10-02

    摘要: A drive apparatus for an electric vehicle comprises a motor (1), a gear section (9) for transmitting rotation of a rotor shaft (2) of the motor to a wheel, and a case (10, 90) for accommodating the motor and the gear section. The case has a partition (12) that separates a motor chamber (m) for accommodating the motor and a gear chamber (g) for accommodating the gear section, and the partition has an orifice (53) that connects a lower portion of the motor chamber and the gear chamber. Supplying means (5) is provided for supplying oil from the gear chamber into the motor chamber in accordance with rotation of the gear section. Through the operation of the orifice, oil gathers in a lower portion of the motor chamber and, thus, the motor chamber serves as a reservoir. Thus, while employing a light-weight and compact-size construction that does not comprise an oil reservoir, the drive apparatus secures a sufficient amount of lubricating oil during stop of the vehicle, and reduces the stirring loss of the gear section and cools the motor with oil during the running of the vehicle.

    摘要翻译: PCT No.PCT / JP96 / 03752 Sec。 371 1997年10月9日第 102(e)日期1997年10月9日PCT 1996年12月24日PCT公布。 公开号WO97 / 23362 日本1997年7月3日电动车辆的驱动装置包括电动机(1),用于将电动机的转子轴(2)的旋转传递到车轮的齿轮部(9)和壳体(10,90) 用于容纳马达和齿轮部分。 壳体具有分隔用于容纳马达的马达室(m)和用于容纳齿轮部的齿轮室(g)的隔板(12),隔板具有连接马达的下部的孔口(53) 室和齿轮室。 提供装置(5)用于根据齿轮部分的旋转将油从齿轮室供给到马达室中。 通过孔的操作,油会聚集在马达室的下部,因此,马达室用作储存器。 因此,在采用不具有储油器的重量轻且结构紧凑的结构的同时,驱动装置在车辆停止期间固定足够量的润滑油,并且减少齿轮部分的搅拌损失并冷却马达 在车辆运行期间用油。

    Drive mechanism for electric car
    3.
    发明授权
    Drive mechanism for electric car 失效
    电动车驱动机构

    公开(公告)号:US5396968A

    公开(公告)日:1995-03-14

    申请号:US33791

    申请日:1993-03-17

    IPC分类号: B60K1/02 B60K17/16 B60K41/26

    摘要: A drive mechanism for an electric car which has a plurality of motors arranged in a drive mechanism case which, in turn rotatably supports a shaft at two points. This shaft transmits the rotation generated by the motors to drive shafts for rotation of the wheels to run the car. The motors are composed of stators having armature cores and coils, and rotors. The stators are fixed in the drive mechanism case and the rotors are supported by the shaft. Since this shaft is rotatably supported at two points by the drive mechanism case, accurate centering of the rotor is maintained.

    摘要翻译: 一种用于电动汽车的驱动机构,其具有布置在驱动机构壳体中的多个电动机,所述驱动机构壳体在两点上可旋转地支撑轴。 该轴将由马达产生的旋转传递到驱动轴以使车轮旋转以使轿厢运行。 电动机由具有电枢铁芯和线圈的定子和转子组成。 定子固定在驱动机构壳体中,转子由轴支撑。 由于该轴由驱动机构壳体可旋转地支撑在两个点处,因此保持了转子的精确对中。

    Motor
    7.
    发明授权
    Motor 失效
    发动机

    公开(公告)号:US5760520A

    公开(公告)日:1998-06-02

    申请号:US778711

    申请日:1996-12-27

    CPC分类号: H02K1/278 H02K2201/06

    摘要: A motor has a stator and a rotor that is formed of two rotor parts fitted on a rotor shaft in a fashion preventing the rotor from rotating relative to the rotor shaft. The rotor parts carry permanent magnets arranged with a fixed pitch angle over their outer peripheral faces. The rotor shaft has a single key for engaging with both an engagement groove of the first rotor and an engagement groove of the second rotor. The engagement groove of each steel plate forming the rotor parts is formed in a position shifted 1/2 of the skew angle from the pole center of a given one of the permanent magnets. The steel plates of the first rotor part and the steel plates of the second rotor part face in opposite directions when fitted to the key of the rotor shaft, thereby providing the predetermined skew angle between the two rotor parts.

    摘要翻译: 电动机具有定子和转子,其以防止转子相对于转子轴旋转的方式由安装在转子轴上的两个转子部分形成。 转子部件携带在其外周面上以固定的俯仰角布置的永磁体。 转子轴具有用于与第一转子的接合槽和第二转子的接合槽相接合的单个键。 形成转子部件的每个钢板的接合槽形成为从给定的一个永磁体的磁极中心偏斜的偏斜角+ E,fra 1/2 + EE的位置。 当安装到转子轴的钥匙上时,第一转子部件的钢板和第二转子部件的钢板在相反的方向上面对,从而在两个转子部件之间提供预定的倾斜角度。

    Electric motor with plural rotor portions having pole members of
different widths
    8.
    发明授权
    Electric motor with plural rotor portions having pole members of different widths 失效
    具有多个转子部分的电动机具有不同宽度的杆部件

    公开(公告)号:US5886440A

    公开(公告)日:1999-03-23

    申请号:US857221

    申请日:1997-05-16

    摘要: A motor capable of suppressing the torque ripple includes a rotor, a stator and stator coils. The rotor is provided with a plurality of permanent magnets which are arranged at a constant pitch in the circumferential direction. The stator surrounds the rotor and is formed with a plurality of stator poles and a slot located between every two stator poles. The stator coils are wound on the stator and are supplied with three-phase sinusoidal current. The rotor is composed of a plurality of rotor portions which are arranged in the axial direction of the rotor. The difference between the open angle of each permanent magnet of one rotor portion and the open angle of each permanent magnet of another rotor portion is an integral multiple of 30.degree. in electrical angle. When three-phase sinusoidal current is applied to the stator coils, a torque ripple is generated. However, the phase of a torque ripple generated at one of the rotor portions arranged in the axial direction can be made different from the phase(s) of torque ripple(s) generated at other rotor portion(s).

    摘要翻译: 能够抑制转矩波动的电动机包括转子,定子和定子线圈。 转子设置有沿周向以恒定间距排列的多个永久磁铁。 定子围绕转子并且形成有多个定子极和位于每两个定子极之间的槽。 定子线圈缠绕在定子上,并提供三相正弦电流。 转子由转子的轴向配置的多个转子部构成。 一个转子部分的每个永磁体的开放角度与另一个转子部分的每个永磁体的开放角度之间的差异是电角度为30°的整数倍。 当三相正弦电流施加到定子线圈时,产生转矩脉动。 然而,可以使沿轴向配置的一个转子部分产生的转矩脉动的相位与其他转子部分产生的转矩波动的相位不同。

    Permanent magnet type synchronous motor
    9.
    发明授权
    Permanent magnet type synchronous motor 失效
    永磁同步电机

    公开(公告)号:US5936322A

    公开(公告)日:1999-08-10

    申请号:US774704

    申请日:1996-12-26

    IPC分类号: H02K1/27 H02K21/14 H02K21/12

    CPC分类号: H02K21/14

    摘要: A permanent magnet type synchronous motor has a stator having teeth that are circumferentially aligned, and a rotor disposed radially inward of the stator. The rotor is made up of permanent magnets facing the teeth and mounted on a rotor core having protrusions that protrude radially outward between the permanent magnets. To suppress cogging, the width of the protrusions is determined such that the inter-pole core central angle .theta. is in the range: .theta..sub.MIN

    摘要翻译: 永磁式同步电动机具有定子,该定子具有周向对准的齿,以及设置在定子的径向内侧的转子。 转子由面向齿的永磁体构成,并安装在具有在永磁体之间径向向外突出的凸起的转子芯上。 为了抑制齿槽,突起的宽度被确定为使得极间核心中心角度θ在以下范围内:θMIN是从中心延伸的两条直线之间形成的角度 所述转子轴与所述两个齿侧面之间离所述突起的齿面的齿侧面之间最远的两个齿侧面的中点相对应,并且θMAX是从所述凸起的中心延伸的两条直线之间形成的角度 所述转子轴相对于所述两个齿头端部,所述两个齿头端部相对于所述突出部中的一个的所述齿头端部之间彼此离开。

    Motor cooling circuit
    10.
    发明授权
    Motor cooling circuit 失效
    电机冷却回路

    公开(公告)号:US5889342A

    公开(公告)日:1999-03-30

    申请号:US770630

    申请日:1996-12-19

    CPC分类号: H02K1/32 H02K9/19 H02K1/274

    摘要: A cooling circuit for a motor which includes a rotor having a rotor shaft, and a core fitted on the rotor shaft and carrying a plurality of permanent magnets arranged on its outer circumference. A stator is arranged radially outward of the rotor. The motor cooling circuit includes axially extending oil passages formed in the rotor core radially inward of the permanent magnets.

    摘要翻译: 一种用于电动机的冷却回路,其包括具有转子轴的转子和安装在转子轴上并承载布置在其外圆周上的多个永磁体的铁芯。 定子在转子的径向外侧配置。 电动机冷却回路包括轴向延伸的油通道,其形成在永磁体径向内侧的转子铁芯中。