Starting method for brushless DC motor and device for the same
    1.
    发明授权
    Starting method for brushless DC motor and device for the same 失效
    无刷直流电动机起动方法及装置

    公开(公告)号:US06204618B1

    公开(公告)日:2001-03-20

    申请号:US09348386

    申请日:1999-07-07

    IPC分类号: H02P622

    CPC分类号: H02P6/22

    摘要: The present invention is a starting method for brushless DC motor and a device for the same, especially adapted to provide the starting method for a single-phase DC brushless motor in an open circuit and the device for the same. According to the art as disclosed in the present invention, there are two successive steps in starting a motor. An oscillator signal is transmitted to the driver at first, which causes the motor to oscillate in both clockwise and counter-clockwise direction. An operating signal is then sent to cause the motor to rotate normally in one direction once the motor is out of the dead initiating position. By that the rotor can be triggered out of the dead initiating position when the motor is going to start and the motor can be smoothly operated under the low cogging torque.

    摘要翻译: 本发明是一种用于无刷直流电动机的起动方法及其装置,特别适于提供开路中的单相直流无刷电动机的起动方法及其装置。 根据本发明所公开的技术,起动电动机有两个连续的步骤。 首先将振荡器信号发送到驱动器,这使得电动机沿顺时针和逆时针方向振荡。 然后,一旦马达离开起始位置,就发送一个操作信号,使电动机在一个方向上正常旋转。 由此,当电动机启动时,转子可以被触发到死点起始位置,并且电动机可以在低齿槽转矩下平稳地操作。

    Method for determining whether a rotor is good in magnetic induction by measuring the EMF of a motor
    2.
    发明授权
    Method for determining whether a rotor is good in magnetic induction by measuring the EMF of a motor 失效
    用于通过测量电动机的EMF来确定转子是否良好的磁感应的方法

    公开(公告)号:US06686761B2

    公开(公告)日:2004-02-03

    申请号:US10062786

    申请日:2002-01-29

    IPC分类号: G01R3134

    CPC分类号: G01R31/343

    摘要: The invention pertains to a method for determining whether a rotor is good in magnetic induction by measuring the electromotive force (emf) of a motor. A standard stator of the motor is prepared as the standard of measurement. A set of induction coil is wound upon the standard stator so that when the rotor is combined with the standard stator and is subject to running by a driver, the induction coil can detect the back-emf signal generated by the rotor, by which the rotor quality can be determined. Since the measuring method disclosed in the invention is performed within the closed system composed of the rotor and the stator, the result is not only close to a real motor in rotation, the detection is simple and free from the problem of axis alignment. Thus, this method can increase the production efficiency of the product line.

    摘要翻译: 本发明涉及通过测量电动机的电动势(emf)来确定转子是否良好的磁感应的方法。 准备电机的标准定子作为测量标准。 一组感应线圈被卷绕在标准定子上,使得当转子与标准定子组合并且被驱动器运行时,感应线圈可以检测由转子产生的反电动势信号,转子 质量可以确定。 由于本发明公开的测量方法是在由转子和定子构成的封闭系统内执行的,结果不仅靠近实际的电动机旋转,所以检测简单,没有轴对准的问题。 因此,该方法可以提高生产线的生产效率。

    Optical devices
    3.
    发明申请
    Optical devices 审中-公开
    光学器件

    公开(公告)号:US20070097531A1

    公开(公告)日:2007-05-03

    申请号:US11338337

    申请日:2006-01-23

    IPC分类号: G02B7/02

    CPC分类号: G02B7/08 H02K41/0352

    摘要: An optical device. A guide bar is connected to a base, with a first central axis in an optical axis direction of the optical device. A coil slides on the guide bar and has a second central axis in the optical axis direction and a first central elevation axis. The second central axis is perpendicular to the first central elevation axis. A fixed magnetic member is disposed in the coil and has a central magnetizing axis and a second central elevation axis. The central magnetizing axis is perpendicular to the second central elevation axis and aligned with the second central axis of the coil. The second central elevation axis is separated from the first central elevation axis. A lens housing is connected to the coil. When the coil is energized by application of a current, a magnetic force is generated, moving the coil and lens housing along the guide bar.

    摘要翻译: 光学装置。 引导杆连接到基座,第一中心轴线在光学装置的光轴方向上。 A线圈在导杆上滑动并且在光轴方向上具有第二中心轴线和第一中心仰角轴线。 第二中心轴垂直于第一中心仰角。 固定磁性部件设置在线圈中并具有中心磁化轴线和第二中央仰角轴线。 中心磁化轴线垂直于第二中心仰角轴线并与线圈的第二中心轴线对齐。 第二中央高程轴与第一中央高程轴分离。 透镜壳体连接到线圈。 当通过施加电流使线圈通电时,产生磁力,沿着导杆移动线圈和透镜壳体。

    Optical devices
    4.
    发明申请
    Optical devices 审中-公开
    光学器件

    公开(公告)号:US20070097530A1

    公开(公告)日:2007-05-03

    申请号:US11266832

    申请日:2005-11-03

    IPC分类号: G02B7/02

    CPC分类号: G02B7/08 H02K41/0352

    摘要: An optical device. At least one guide bar is connected to a base. A coil is disposed in the base. A central axis of the coil in an optical axis direction of the optical device is parallel to a central axis of the guide bar in the optical axis direction. A lens housing is slidably fitted on the guide bar. A central axis of the lens housing in the optical axis direction is parallel to that of the guide bar. The lens housing slides along the central axis of the guide bar. A magnetic member is connected to the lens housing opposite the coil, providing a first magnetic field. When the coil is energized to generate a second magnetic field, the lens housing slides on the guide bar by attraction or repulsion of the first and second magnetic fields.

    摘要翻译: 光学装置。 至少一个导杆连接到基座。 线圈设置在基座中。 光学装置的光轴方向的线圈的中心轴在光轴方向上平行于导杆的中心轴线。 透镜壳体可滑动地装配在导杆上。 透镜壳体的光轴方向的中心轴线与导杆的平行。 透镜壳体沿着导杆的中心轴线滑动。 磁性构件连接到与线圈相对的透镜壳体,提供第一磁场。 当线圈通电以产生第二磁场时,透镜壳体通过吸引或排斥第一和第二磁场而在引导杆上滑动。

    Three-phase motor stator
    5.
    发明申请
    Three-phase motor stator 审中-公开
    三相电机定子

    公开(公告)号:US20080143210A1

    公开(公告)日:2008-06-19

    申请号:US11640877

    申请日:2006-12-19

    IPC分类号: H02K1/12 H02K1/16

    CPC分类号: H02K1/165 H02K1/146 H02K29/03

    摘要: The present invention provides a three-phase motor stator. The shape of the three-phase motor stator is defined by an optimum pole-tooth ratio for reducing the cogging torque of the motor and increasing the efficiency of the motor. The three-phase motor stator includes at least one plate board. The plate board has a circular hole. A plurality of pole-teeth protrude from the rim of the circular hole and the pole-teeth are symmetric. An opening slot is individually located between two adjacent pole-teeth. The pole-tooth ratio α defined by the tooth angle of a single pole-tooth divided by the pole pitch of two adjacent pole-teeth is between 0.65 and 0.85.

    摘要翻译: 本发明提供一种三相电动机定子。 三相电动机定子的形状由用于减小电动机齿槽转矩和提高电动机效率的最佳极齿比限定。 三相电动机定子包括至少一个板板。 板板有一个圆形孔。 多个极齿从圆形孔的边缘突出,并且极齿是对称的。 开口槽分别位于两个相邻的极齿之间。 由单极齿的齿角除以两个相邻极齿的极间距定义的极齿比α在0.65和0.85之间。

    Method and apparatus for estimating the position of a moving part of a linear actuator
    6.
    发明授权
    Method and apparatus for estimating the position of a moving part of a linear actuator 有权
    用于估计线性致动器的运动部分的位置的方法和装置

    公开(公告)号:US07319303B2

    公开(公告)日:2008-01-15

    申请号:US11532103

    申请日:2006-09-15

    IPC分类号: H02K41/02 G05B11/00

    摘要: A method and an apparatus for estimating the position of a moving part of a linear actuator are provided. The method comprises the following steps. Move the moving part towards a target position. Receive magnetic signals generated by the magneto-resistive sensor of the linear actuator, which include a sine signal and a cosine signal. Then, generate a first square wave, a second square wave, and a regional square wave based on the sine signal and the cosine signal. Generate a saw-tooth wave based on the sine signal, the cosine signal, the second square wave, and the regional square wave. Next, calculate the number of regions which the moving part is across from the origin point based on the first square wave, the second square wave, and the regional square wave. Finally, estimate the current position of the moving part based on the saw-tooth wave and the number of regions.

    摘要翻译: 提供了用于估计线性致动器的运动部分的位置的方法和装置。 该方法包括以下步骤。 将移动的部分移动到目标位置。 接收由线性致动器的磁阻传感器产生的磁信号,其包括正弦信号和余弦信号。 然后,基于正弦信号和余弦信号产生第一方波,第二方波和区域方波。 基于正弦信号,余弦信号,第二方波和区域方波产生锯齿波。 接下来,基于第一方波,第二方波和区域方波来计算运动部分与原点相对的区域的数量。 最后,基于锯齿波和区域数量来估计运动部件的当前位置。

    Optical devices
    7.
    发明申请
    Optical devices 审中-公开
    光学器件

    公开(公告)号:US20070097532A1

    公开(公告)日:2007-05-03

    申请号:US11494871

    申请日:2006-07-28

    IPC分类号: G02B7/02

    摘要: An optical device. At least one guide bar is connected to a base. A coil is disposed in the base. A central axis of the coil in an optical axis direction of the optical device is parallel to a central axis of the guide bar in the optical axis direction. A lens housing slidably fits on the guide bar. A central axis of the lens housing in the optical axis direction is parallel to that of the guide bar. The lens housing slides along the central axis of the guide bar. A magnetic member is connected to the lens housing opposite the coil, providing a first magnetic field. When the coil is energized to generate a second magnetic field, the lens housing slides on the guide bar by attraction or repulsion of the first and second magnetic fields.

    摘要翻译: 光学装置。 至少一个导杆连接到基座。 线圈设置在基座中。 光学装置的光轴方向的线圈的中心轴在光轴方向上平行于导杆的中心轴线。 透镜壳体可滑动地装配在导杆上。 透镜壳体的光轴方向的中心轴线与导杆的平行。 透镜壳体沿着导杆的中心轴线滑动。 磁性构件连接到与线圈相对的透镜壳体,提供第一磁场。 当线圈通电以产生第二磁场时,透镜壳体通过吸引或排斥第一和第二磁场而在引导杆上滑动。

    Braking method for a single-phase motor
    8.
    发明授权
    Braking method for a single-phase motor 有权
    单相电机的制动方法

    公开(公告)号:US06274992B1

    公开(公告)日:2001-08-14

    申请号:US09642547

    申请日:2000-08-17

    IPC分类号: H02P300

    CPC分类号: H02P6/24 H02P6/006

    摘要: The specification discloses a braking method for a single-phase motor, which is applied to a single-phase DC brushless motor driven by a three-phase motor driving IC. The invention uses a control unit to compute the rotational speed of the single-phase motor according to a rotation number signal generated by the motor rotational axis. When the rotational speed is below a threshold, the motor driving IC is controlled to stop rotating the single-phase motor. Through the single-phase motor braking method disclosed herein, the problem of unable to determine the rotational direction of a single-phase motor within a three-phase motor driving IC existing in the prior art can be solved by merely modifying the program in the control unit without adding system elements. Since currently the single-phase DC brushless motor and the three-phase motor driving IC have competitive superiority in prices, if the three-phase motor driving IC can directly drive the single-phase DC brushless motor without requiring additional system elements the whole system cost can be lower. On the other hand, this method can avoid the delay problem due to fewer single-phase motor driving IC manufacturers on the market.

    摘要翻译: 本说明书公开了一种用于单相电动机的制动方法,其应用于由三相电动机驱动IC驱动的单相直流无刷电动机。 本发明使用控制单元根据由马达旋转轴产生的转数信号来计算单相马达的转速。 当转速低于阈值时,控制电动机驱动IC停止旋转单相电动机。 通过这里公开的单相电动机制动方法,可以通过仅仅修改控制中的程序来解决不能确定现有技术中存在的三相电动机驱动IC内的单相电动机的旋转方向的问题 单位不添加系统元素。 由于目前单相直流无刷电机和三相电动机驱动IC在价格上具有竞争优势,如果三相电机驱动IC可以直接驱动单相直流无刷电机,而无需额外的系统元件,整个系统成本 可以较低。 另一方面,这种方法可以避免延迟问题,因为市场上较少的单相电机驱动IC制造商。

    Lens activating device
    9.
    发明授权
    Lens activating device 有权
    镜头启动装置

    公开(公告)号:US07952822B2

    公开(公告)日:2011-05-31

    申请号:US12555739

    申请日:2009-09-08

    IPC分类号: G02B7/02

    CPC分类号: G02B7/08 H02K41/0356

    摘要: A lens activating device includes at least one elastic piece, at least one stationary piece and a movable piece. At least one elastic piece has at least four sheet portions and four sets of elastic portions. Each set of the elastic portions are serpentine and connected between two sheet portions in order to make the at least one elastic piece form a closed ring. The stationary piece is connected to two sheet portions, and the movable portion is connected to the other two sheet portions. The elastic force generated by the four sets of elastic portions exerts a restoring force on the movable piece. Via this arrangement, the slight rotation of the movable piece within the lens activating device can be reduced. Further, the problem that the elastic piece may scrape the neighboring elements can be prevented.

    摘要翻译: 透镜激活装置包括至少一个弹性件,至少一个固定件和可移动件。 至少一个弹性件具有至少四个片部分和四组弹性部分。 每组弹性部分是蛇形的并连接在两片片之间,以使至少一个弹性片形成闭环。 固定件连接到两个片部分,并且可动部分连接到另外两个片部分。 由四组弹性部分产生的弹力对可动片施加恢复力。 通过这种布置,可以减少可动件在透镜启动装置内的轻微旋转。 此外,可以防止弹性件可能刮擦相邻元件的问题。

    Lens displacement device
    10.
    发明申请
    Lens displacement device 失效
    镜头位移装置

    公开(公告)号:US20080310037A1

    公开(公告)日:2008-12-18

    申请号:US12081333

    申请日:2008-04-15

    IPC分类号: G02B7/04

    摘要: The present invention provides a lens displacement device, applicable for moving micro image-capturing module lens, wherein the lens displacement device comprises: a lens slide base, a first hollow magnet, a hollow magnetic conducting plate, a second hollow magnet and a hollow coil. A first magnetic pole side of the hollow magnetic conducting plate is magnetically connected to the first hollow magnet, and a second magnetic pole side of the hollow magnetic conducting plate is magnetically connected to the second hollow magnet, which combined to form a magnetically connected assembly. The hollow coil is placed at the outer or inner perimeter of the magnetically connected assembly, and the hollow coil surrounds the magnetically connected assembly and they have a gap in-between them to allow for sliding. Herein the lens slide base rigidly connects the first hollow magnet of the magnetically connected assembly or the hollow coil.

    摘要翻译: 本发明提供一种可应用于移动微型摄像模块透镜的透镜移位装置,其中透镜移位装置包括:透镜滑动基座,第一中空磁体,中空导磁板,第二中空磁体和中空线圈 。 中空导磁板的第一磁极侧与第一中空磁体磁连接,中空导磁板的第二磁极侧与第二中空磁体磁连接,并组合形成磁性连接组件。 空心线圈放置在磁性连接组件的外周或内周,中空线圈包围磁连接组件,并且它们之间具有间隙以允许滑动。 这里,透镜滑动基座刚性连接磁连接组件的第一中空磁体或中空线圈。