Direct current motor
    41.
    发明授权
    Direct current motor 失效
    直流电机

    公开(公告)号:US4447751A

    公开(公告)日:1984-05-08

    申请号:US320534

    申请日:1981-11-12

    IPC分类号: H02K23/26 H02K29/08 H02K21/26

    CPC分类号: H02K23/26 H02K29/08

    摘要: A direct current motor comprises a field magnet having 2 mn magnetic poles magnetized with the same angular intervals as those of the magnetic poles N and S, where m is an integer of 1 or more, and n is an integer of 4 or more, a magnetic member for closing the magnetic circuit of the magnetic poles of the field magnet, an armature in which m(2n.+-.n) armature coils are arranged each magnetically with a phase angle of 360/(2n.+-.2) degrees, the armature being directed towards the magnetic poles in the magnetic circuit, electric power supply control means for performing the switching of an armature current mn(2n.+-.2) times per revolution of the armature with respect to the field magnet, and a rotating shaft for rotatably supporting the armature or the field magnet, the rotating shaft being supported by a bearing disposed in an outer casing of the direct current motor. In arrangement in which the armature coils correspond to the magnetic poles, the terminal of an armature coil which has a closest relationship to its corresponding magnetic pole with respect to a relationship of any desired armature coil to its corresponding magnetic pole, and the terminal of that desired armature coil are connected together to the electric power supply control means so that the armature coils are wound in the same direction.

    摘要翻译: 直流电动机包括具有以与磁极N和S相同的角度间隔磁化的2mn磁极的场磁体,其中m为1以上的整数,n为4以上的整数, 用于关闭场磁体的磁极的磁路的磁性构件,其中m(2n + n)个电枢线圈以360°/(2n +/- 2)度的相位角磁性地布置的电枢,所述电枢 被引导到磁路中的磁极;电力供给控制装置,用于相对于磁场磁体执行电枢每转一圈的电枢电流mn(2n +/- 2)次的切换;以及旋转轴, 支撑电枢或场磁体,旋转轴由设置在直流电动机的外壳中的轴承支撑。 在电枢线圈对应于磁极的布置中,电枢线圈的端子相对于任何所需的电枢线圈与其对应磁极的关系与其对应的磁极具有最接近的关系,并且该端子 所需的电枢线圈一起连接到电力供给控制装置,使得电枢线圈沿同一方向缠绕。

    Direct current motor
    42.
    发明授权
    Direct current motor 失效
    直流电机

    公开(公告)号:US4437029A

    公开(公告)日:1984-03-13

    申请号:US312089

    申请日:1981-10-16

    IPC分类号: H02K23/26 H02K23/54

    CPC分类号: H02K23/54 H02K23/26

    摘要: A direct current motor comprising a field magnet provided with 2 mn magnetic poles which are magnetized with the same angular intervals as those of the magnetic poles N and S, where m is an integer of 1 or more, and n is an integer of 3 or more; a magnetic member for closing the magnetic circuit of the magnetic poles of the field magnet; an armature in which m(2n.+-.1) armature coils are arranged with an equal pitch, the armature being directed towards the magnetic poles in the magnetic circuit; electric power supply control device capable of performing the switching of armature current 2 mn (2n.+-.1) times per revolution of the armature; and a rotating shaft for rotatably supporting the armature and one of the magnetic poles, the rotating shaft supported by a bearing disposed in an outer casing of the direct current motor.

    摘要翻译: 一种直流电动机,其包括具有2mn磁极的磁场磁体,磁场与磁极N和S的角度间隔相同,其中m为1或更大的整数,n为3或3的整数, 更多; 用于封闭场磁体的磁极的磁路的磁性构件; 电枢,其中m(2n + 1)个电枢线圈以相等的间距排列,电枢朝向磁路中的磁极; 电力供给控制装置,其能够进行电枢电流每转的电枢电流2mn(2n +/- 1)倍的切换; 以及用于可旋转地支撑电枢和一个磁极的旋转轴,旋转轴由设置在直流电动机的外壳中的轴承支撑。

    Direct current motor with double layer armature windings
    43.
    发明授权
    Direct current motor with double layer armature windings 失效
    直流电机带双层电枢绕组

    公开(公告)号:US4227107A

    公开(公告)日:1980-10-07

    申请号:US929565

    申请日:1978-07-31

    CPC分类号: H02K23/30 H02K23/20 H02K3/04

    摘要: A direct current motor, having armature windings superposed on each other in double layers, is provided with a fixed field magnet having 2 mn poles (m being a positive integer of 1 or more, n a positive integer of 2 or more) magnetized alternately to N and S polarities in equal angular spaces, a magnetic material member for closing the magnetic path of the field magnet, rotating shaft supported by bearings provided in the housing of the motor, and an armature secured to the shaft for rotation in the magnetic path facing to the field magnet poles. A first series of m(2n-1) armature windings mounted on the armature are juxtaposed side by side at equal pitches, the angular spacing between the conductor portions of the windings, which contribute to generate torque, being equal to the angular width of the field magnet pole. A second series of m(2n-1) armature windings mounted on the armature are juxtaposed side by side at equal pitches, the angular spacing between the conductor portions of the windings of the second series, which contribute to generate torque, being equal to the angular width of the field magnet pole. The first series of armature windings and the second series of armature windings are superposed on each other and are disposed, with respect to each other, out of phase by 1/(2n-1) of the angular width of the field magnet pole.

    摘要翻译: 具有以双层重叠的电枢绕组的直流电动机设置有具有2mn极(m为1以上的正整数,n为2以上的正整数2以上)的磁场的固定磁场磁体, 和S极性,用于闭合磁场磁体的磁路的磁性材料构件,由设置在电动机的壳体中的轴承支撑的旋转轴,以及固定到轴的电枢,用于在面向 磁场磁极。 安装在电枢上的第一系列m(2n-1)个电枢绕组以相同的间距并排并置,绕组的导体部分之间的角度间隔有助于产生转矩,等于 磁场磁极。 安装在电枢上的第二系列m(2n-1)个电枢绕组以相等的间距并排并置,第二系列的绕组的导体部分之间的角度间隔有助于产生转矩,等于 场磁极的角宽度。 第一系列电枢绕组和第二系列电枢绕组彼此叠置并且彼此相对地设置为场磁极的角宽度的1 /(2n-1)。

    System for driving a direct-current motor in synchronism with an
external signal
    44.
    发明授权
    System for driving a direct-current motor in synchronism with an external signal 失效
    用于与外部信号同步驱动直流电动机的系统

    公开(公告)号:US3931556A

    公开(公告)日:1976-01-06

    申请号:US406374

    申请日:1973-10-15

    CPC分类号: H02P6/14 H02P23/22 H02P7/291

    摘要: For driving a direct-current motor in tune with the frequency of an external synchronizing signal regardless of any abrupt change in the load or in the synchronizing signal frequency, a rotor position signal is produced in the form of a succession of pulses in phased relationship to the rotation of the motor. A first control circuit is provided to initiate the supply of electrical energy from a DC power supply to the motor in response to each pulse of the synchronizing signal and to suspend the supply of electrical energy in response to each pulse of the rotor position signal. This first control circuit is combined with second and third control circuits adapted to modify the operation of the first control circuit in event the motor has fallen out of synchronism. Thus, when the actual speed of the motor becomes higher than the required synchronous speed, the second control circuit operates to permit the motor to be fed continuously from the DC power supply, and when the actual motor speed becomes lower than the synchronous speed, the third control circuit operates to prevent the motor from being fed from the DC power supply, until the motor is pulled back into synchronous operation. Several other embodiments are disclosed.

    摘要翻译: 为了驱动与外部同步信号的频率一致的直流电动机,无论负载的突然变化或同步信号频率如何,转子位置信号以一系列脉冲的形式产生,分阶段相关 电机的旋转。 提供第一控制电路以响应于同步信号的每个脉冲启动从DC电源向电动机的电能供应,并且响应于转子位置信号的每个脉冲暂停供应电能。 该第一控制电路与第二和第三控制电路组合,适于在电动机已经失去同步的情况下修改第一控制电路的操作。 因此,当电动机的实际速度高于所需的同步速度时,第二控制电路运行以允许电动机从直流电源连续供电,并且当实际的电动机转速低于同步转速时, 第三控制电路用于防止电动机从直流电源馈送,直到电动机被拉回到同步操作。 公开了几个其它实施例。

    Lens driving apparatus
    46.
    再颁专利

    公开(公告)号:USRE43644E1

    公开(公告)日:2012-09-11

    申请号:US13012290

    申请日:2011-01-24

    CPC分类号: G02B7/08 H02K41/0356

    摘要: A lens driving apparatus 1 of the present invention includes a substantially cylindrical yoke 3; a base 5 to which the yoke 3 is attached; a carrier 7 having a lens; a coil 10; and a magnet 13, wherein the carrier 7 is moved in a direction of an optical axis of a lens by electromagnetic force generated by passing current through the coil 10, the base 5 is substantially square-shaped as viewed from a plane, the yoke 3 is placed at an inner position of the base 5, the yoke 3 has an outer peripheral wall 3a and an annular inner peripheral wall 3b to be spaced to each other, each magnet is placed between the outer peripheral wall and the inner peripheral wall and at a position corresponding to a base corner portion of the base 5, and a space between the outer peripheral wall 3a and the inner peripheral wall 3b positioned at a base side portion 3e is made narrower than a space between the outer peripheral wall 3a and the inner peripheral wall 3b positioned at the base corner portion.

    LINEAR DRIVING DEVICE
    47.
    发明申请
    LINEAR DRIVING DEVICE 有权
    线性驱动装置

    公开(公告)号:US20110101826A1

    公开(公告)日:2011-05-05

    申请号:US12913121

    申请日:2010-10-27

    IPC分类号: H02N2/04

    摘要: In a linear driving device 7, in which a driving shaft 21 vibrates in an axial direction by a vibration member 17, as a result of which a movable body 3 that is frictionally contact with the driving shaft 21 slides along the axial direction of the driving shaft 21, the vibration member 17 includes a piezoelectric element 23 and a vibrator 19 made of a metal plate having elasticity; the vibrator 19 is fixed to the piezoelectric element 23 by superimposing plate faces thereof; the driving shaft 21 has a trunk 25 along which the movable body 3 slides, and an end portion 26 to be fixed to the vibrator 19; a base surface 24 of the end portion 26 abuts with and is fixed to the vibrator 19; and an area of the base surface 24 is smaller than a cross sectional area of the trunk 25.

    摘要翻译: 在驱动轴21通过振动部件17沿轴向振动的直线驱动装置7中,与驱动轴21摩擦接触的移动体3的结果沿着驱动轴线方向滑动 轴21,振动部件17包括压电元件23和由具有弹性的金属板制成的振动器19; 振动器19通过叠加板面而固定在压电元件23上; 驱动轴21具有可移动体3沿其滑动的躯干25和固定到振动器19的端部26; 端部26的基面24邻接并固定到振动器19; 并且基面24的面积小于主体25的横截面面积。

    Lens drive device
    48.
    发明授权
    Lens drive device 有权
    镜头驱动装置

    公开(公告)号:US07724455B2

    公开(公告)日:2010-05-25

    申请号:US11992316

    申请日:2006-10-31

    IPC分类号: G02B7/02

    CPC分类号: G02B7/102

    摘要: A lens drive device having a simple structure and small sized. The lens drive device (1) has a lens holder (3, 5), a drive shaft (21) into which one end of the lens holder (3, 5) is fitted and placed along the direction of the optical axis of lenses (14, 16), and a piezo element (17) provided at a base end (21a) of the drive shaft (21). The base end (21a) of the drive shaft (21) is fixed to a vibrator (19) of the piezo element (17), and the drive shaft (21) is vibrated in the direction of its axis by vibration of the vibrator (19) produced by conducting a pulse current to the piezo element (17). The lens holder (3, 5) is moved in the optical axis direction by using repetition of inertia force and friction force of the holder relative to the drive shaft (21).

    摘要翻译: 具有结构简单,体积小的透镜驱动装置。 透镜驱动装置(1)具有透镜架(3,5),驱动轴(21),透镜保持架(3,5)的一端沿着透镜的光轴方向嵌合并配置在该驱动轴 14,16)和设置在驱动轴(21)的基端(21a)的压电元件(17)。 驱动轴(21)的基端(21a)固定在压电元件(17)的振动器(19)上,驱动轴(21)通过振动器的振动沿其轴线方向振动( 19)通过向压电元件(17)施加脉冲电流而产生。 通过重复惯性力和保持器相对于驱动轴(21)的摩擦力,透镜架(3,5)沿光轴方向移动。

    Lens driving apparatus
    49.
    发明授权
    Lens driving apparatus 有权
    镜头驱动装置

    公开(公告)号:US07649703B2

    公开(公告)日:2010-01-19

    申请号:US11346233

    申请日:2006-02-03

    CPC分类号: G02B7/08 H02K41/0356

    摘要: A lens driving apparatus 1 of the present invention includes a substantially cylindrical yoke 3; a base 5 to which the yoke 3 is attached; a carrier 7 having a lens; a coil 10; and a magnet 13, wherein the carrier 7 is moved in a direction of an optical axis of a lens by electromagnetic force generated by passing current through the coil 10, the base 5 is substantially square-shaped as viewed from a plane, the yoke 3 is placed at an inner position of the base 5, the yoke 3 has an outer peripheral wall 3a and an annular inner peripheral wall 3b to be spaced to each other, each magnet is placed between the outer peripheral wall and the inner peripheral wall and at a position corresponding to a base corner portion of the base 5, and a space between the outer peripheral wall 3a and the inner peripheral wall 3b positioned at a base side portion 3e is made narrower than a space between the outer peripheral wall 3a and the inner peripheral wall 3b positioned at the base corner portion.

    摘要翻译: 本发明的透镜驱动装置1包括大致圆柱形的轭3; 轭3所附接的基座5; 具有透镜的载体7; 线圈10; 和磁体13,其中载体7通过电流通过线圈10产生的电磁力在透镜的光轴方向上移动,基座5从平面观察时大体上为正方形,轭3 放置在基座5的内部位置时,磁轭3具有彼此间隔开的外周壁3a和环形内周壁3b,每个磁体位于外周壁和内周壁之间,并且在 与基座5的基部角部对应的位置以及位于基部侧部3e的外周壁3a与内周壁3b之间的空间比外周壁3a和内周侧壁3a之间的间隙窄。 位于基角部的周壁3b。

    Lens driving apparatus
    50.
    发明授权
    Lens driving apparatus 有权
    镜头驱动装置

    公开(公告)号:US07394603B2

    公开(公告)日:2008-07-01

    申请号:US10926221

    申请日:2004-08-26

    IPC分类号: G02B7/02 G02B15/14

    CPC分类号: G02B7/102 G02B7/08 G02B7/282

    摘要: A lens driving apparatus includes: a first yoke having an inner peripheral wall and an outer peripheral wall placed to be concentric with each other and forming a rectangular U-shape cross section and a cylindrical shape; a second yoke placed at an outer side of the first yoke to be concentric with the first yoke and forming a rectangular U-shape cross section and a cylindrical shape; a base; a first magnet and a first coil arranged in a rectangular U-shape interior of the first yoke; a second magnet and a second coil arranged in a rectangular U-shape interior of the second yoke; a first lens support member; and a second lens support member. The second lens support member is placed at an inner peripheral side of the second yoke and has the second coil fixed onto an outer periphery thereof. The first lens support member is linearly moved in a direction of an optical axis of a lens by an electromagnetic force caused by passing current through the first coil. The second lens support member is linearly moved in a direction of an optical axis of a lens by an electromagnetic force caused by passing current through the second coil.

    摘要翻译: 透镜驱动装置包括:第一磁轭,具有设置成彼此同心的内周壁和外周壁,并形成矩形的U形横截面和圆柱形; 放置在与第一磁轭同心的第一磁轭的外侧的形成矩形的U形横截面和圆筒形的第二磁轭; 一个基地 布置在所述第一磁轭的矩形U形内部的第一磁体和第一线圈; 布置在所述第二磁轭的矩形U形内部的第二磁体和第二线圈; 第一透镜支撑构件; 和第二透镜支撑构件。 第二透镜支撑构件被放置在第二磁轭的内周侧,并且具有固定在其外周上的第二线圈。 第一透镜支撑构件通过由通过第一线圈的电流引起的电磁力在透镜的光轴的方向上线性移动。 第二透镜支撑构件通过由通过第二线圈的电流引起的电磁力在透镜的光轴的方向上线性移动。