Linear motor
    4.
    发明授权

    公开(公告)号:US07042119B2

    公开(公告)日:2006-05-09

    申请号:US11059416

    申请日:2005-02-17

    IPC分类号: H02K41/00

    CPC分类号: H02K41/03

    摘要: A linear motor includes a row of permanent magnets fixed at a position above a stator, and a plurality of magnetic pole members fixed at a position below a movable member. The row of permanent magnets is formed from N poles and S poles alternately arranged at given intervals. The plurality of magnetic pole members extend toward the row of permanent magnets and in a vertical direction and have the same height. The extremities of the magnetic pole members oppose the row of permanent magnets via an air gap. The magnetic pole members are coated with insulators, and a former-wound coil is fitted around the insulator. The part of the magnetic pole member coated with the insulator, except for the extremity thereof, is made thin by the amount corresponding to the thickness of the insulator.

    Sealed actuator
    5.
    发明授权
    Sealed actuator 失效
    密封执行器

    公开(公告)号:US5914548A

    公开(公告)日:1999-06-22

    申请号:US773180

    申请日:1996-12-27

    摘要: A sealed actuator includes a motor stator having rotation-drive magnetic poles; a motor rotor arranged so as to confront magnetic pole surfaces of the motor stator while interposing a small distance therebetween and rotatably supported through roller bearings; and displacement detecting means for measuring displacement of the motor rotor. A partition wall made of a nonmagnetic metal is disposed in a clearance between the motor stator and the motor rotor, so that the inner space where the motor stator is disposed is hermetically covered. The bearings are disposed at both sides of the partition wall in the axial direction so that the load applied to the bearings are directly received by a housing. At least a part of the partition wall is reinforced by reinforcing members and a mold agent is charged into the space on the motor stator side.

    摘要翻译: 密封致动器包括具有旋转驱动磁极的电动机定子; 电动机转子,其布置成面对电动机定子的磁极表面,同时在其间插入小间距并通过滚子轴承可旋转地支撑; 以及用于测量电动机转子的位移的位移检测装置。 由非磁性金属构成的隔壁设置在电动机定子与电动机转子之间的间隙中,使得电动机定子的内部空间被气密地覆盖。 轴承沿轴向设置在分隔壁的两侧,使得施加到轴承的负载被壳体直接接收。 分隔壁的至少一部分由加强构件加强,并且将模具剂装入电动机定子侧的空间中。

    Control unit for electric power steering apparatus
    6.
    发明授权
    Control unit for electric power steering apparatus 有权
    电动助力转向装置控制单元

    公开(公告)号:US07382295B2

    公开(公告)日:2008-06-03

    申请号:US10578267

    申请日:2004-11-01

    IPC分类号: H03M1/48

    摘要: Since an abnormality is judged by executing a square calculating process with respect to sin θ and cos θ for detecting an abnormality in an angular resolver, a processing time is elongated, and a burden to a CPU is great. Since the invention prepares a map which can judge whether the combination of sin θ and cos θ is normal or abnormal, and judges by mapping the combination of the detected sin θ and cos θ, a process can be easily executed, a processing speed is high, and a burden to the CPU can be reduced. Further, an assist can be maintained by controlling a motor by a rectangular wave current by detecting a rotation angle signal at low resolution level, such as Hall sensors arranged around the motor.

    摘要翻译: 由于通过执行关于sinθ和cosθ的平方计算处理来检测角解算器中的异常来判断异常,所以处理时间变长,并且对CPU的负担很大。 由于本发明准备一个可以判断sinθ和cosθ的组合是正常还是异常的映射,并且通过映射检测到的sinθ和cosθ的组合来判断,可以容易地执行处理,处理速度高 可以减轻对CPU的负担。 此外,通过以低分辨率水平检测旋转角度信号,例如布置在电动机周围的霍尔传感器,通过矩形波电流控制电动机可以保持辅助。

    Sealed actuator
    7.
    再颁专利
    Sealed actuator 有权
    密封执行器

    公开(公告)号:USRE39748E1

    公开(公告)日:2007-07-31

    申请号:US09885942

    申请日:2001-06-22

    IPC分类号: H02K5/10 H02K11/00 H02K7/20

    摘要: A sealed actuator includes a motor stator having rotation-drive magnetic poles; a motor rotor arranged so as to confront magnetic pole surfaces of the motor stator while interposing a small distance therebetween and rotatably supported through roller bearings; and displacement detecting means for measuring displacement of the motor rotor. A partition wall made of a nonmagnetic metal is disposed in a clearance between the motor stator and the motor rotor, so that the inner space where the motor stator is disposed is hermetically covered. The bearings are disposed at both sides of the partition wall in the axial direction so that the load applied to the bearings are directly received by a housing. At least a part of the partition wall is reinforced by reinforcing members and a mold agent is charged into the space on the motor stator side.

    摘要翻译: 密封致动器包括具有旋转驱动磁极的电动机定子; 电动机转子,其布置成面对电动机定子的磁极表面,同时在其间插入小间距并通过滚子轴承可旋转地支撑; 以及用于测量电动机转子的位移的位移检测装置。 由非磁性金属构成的隔壁设置在电动机定子与电动机转子之间的间隙中,使得电动机定子的内部空间被气密地覆盖。 轴承沿轴向设置在分隔壁的两侧,使得施加到轴承的负载被壳体直接接收。 分隔壁的至少一部分由加强构件加强,并且将模具剂装入电动机定子侧的空间中。

    Control unit for electric power steering apparatus
    8.
    发明申请
    Control unit for electric power steering apparatus 有权
    电动助力转向装置控制单元

    公开(公告)号:US20070146169A1

    公开(公告)日:2007-06-28

    申请号:US10578267

    申请日:2004-11-01

    IPC分类号: H03M1/22

    摘要: Since an abnormality is judged by executing a square calculating process with respect to sin θ and cos θ for detecting an abnormality in an angular resolver, a processing time is elongated, and a burden to a CPU is great. Since the invention prepares a map which can judge whether the combination of sin θ and cos θ is normal or abnormal, and judges by mapping the combination of the detected sin θ and cos θ, a process can be easily executed, a processing speed is high, and a burden to the CPU can be reduced. Further, an assist can be maintained by controlling a motor by a rectangular wave current by detecting a rotation angle signal at low resolution level, such as Hall sensors arranged around the motor.

    摘要翻译: 由于通过执行关于sinθ和cosθ的平方计算处理来检测角解算器中的异常来判断异常,所以处理时间变长,并且对CPU的负担很大。 由于本发明准备一个可以判断sinθ和cosθ的组合是正常还是异常的映射,并且通过映射检测到的sinθ和cosθ的组合来判断,可以容易地执行处理,处理速度高 可以减轻对CPU的负担。 此外,通过以低分辨率水平检测旋转角度信号,例如布置在电动机周围的霍尔传感器,通过矩形波电流控制电动机可以保持辅助。

    Resolver digital converter
    9.
    发明申请
    Resolver digital converter 有权
    分解数字转换器

    公开(公告)号:US20050252272A1

    公开(公告)日:2005-11-17

    申请号:US11110697

    申请日:2005-04-21

    IPC分类号: G01D5/245 G01D5/244 G01W1/18

    CPC分类号: G01D5/24461 G01D5/24457

    摘要: In a resolver digital converter comprising a resolver, a resolver digital conversion part, and an excitation signal generation part, the resolver digital converter for inputting an excitation signal generated in the excitation signal generation part to the resolver and inputting resolver signals outputted from the resolver to the resolver digital conversion part, a locus in which amplitude of a sine component signal among the resolver signals sin(θ), cos(θ) outputted from the resolver is plotted as the ordinate axis and amplitude of a cosine component signal is plotted as the abscissa axis is approximated by a polygon and when the locus matches with sides of the approximated polygon, it is determined that the resolver is in a normal state and when the locus does not match, it is determined that the resolver is in a failure state.

    摘要翻译: 在包括分解器,分解器数字转换部分和激励信号生成部分的解算器数字转换器中,所述分解器数字转换器用于将在激励信号产生部分中产生的激励信号输入到旋转变压器,并将从旋转变压器输出的解算器信号输入到 旋转变压器数字转换部分将将从分解器输出的旋转变压器信号sin(θ),cos(theta)中的正弦分量信号的幅度绘制为纵轴和余弦分量信号的幅度的轨迹被绘制为 横坐标轴由多边形近似,并且当轨迹与近似多边形的边匹配时,确定解析器处于正常状态,并且当轨迹不匹配时,确定旋转变压器处于故障状态。

    Linear motor
    10.
    发明申请

    公开(公告)号:US20050151428A1

    公开(公告)日:2005-07-14

    申请号:US11059416

    申请日:2005-02-17

    IPC分类号: H02K41/02 H02K41/03 H02K41/00

    CPC分类号: H02K41/03

    摘要: A linear motor includes a row of permanent magnets fixed at a position above a stator, and a plurality of magnetic pole members fixed at a position below a movable member. The row of permanent magnets is formed from N poles and S poles alternately arranged at given intervals. The plurality of magnetic pole members extend toward the row of permanent magnets and in a vertical direction and have the same height. The extremities of the magnetic pole members oppose the row of permanent magnets via an air gap. The magnetic pole members are coated with insulators, and a former-wound coil is fitted around the insulator. The part of the magnetic pole member coated with the insulator, except for the extremity thereof, is made thin by the amount corresponding to the thickness of the insulator.