Apparatus for levitating objects and apparatus for transporting objects
    1.
    发明授权
    Apparatus for levitating objects and apparatus for transporting objects 失效
    用于悬浮物体的设备和运送物体的设备

    公开(公告)号:US06779650B2

    公开(公告)日:2004-08-24

    申请号:US10205820

    申请日:2002-07-26

    IPC分类号: B65G3500

    摘要: An apparatus for levitating objects has an elongated diaphragm and a transducer. The diaphragm has a first end portion and a second end portion. The first end portion is fixed to a horn and the second end portion is fixed to a supporting member. The transducer is connected to only the horn. The transducer vibrates the diaphragm and an object is levitated above a surface of the diaphragm by radiation pressure of a sound wave generated from the diaphragm. Therefore, the elongated diaphragm can be vibrated by one transducer in a stable condition with a simple structure.

    摘要翻译: 用于悬浮物体的装置具有细长的隔膜和换能器。 隔膜具有第一端部和第二端部。 第一端部固定到喇叭,第二端部固定在支撑部件上。 传感器只连接到喇叭。 传感器振动隔膜,并且通过从隔膜产生的声波的辐射压力使物体悬浮在隔膜的表面上方。 因此,在结构简单的条件下,细长的隔膜可以用一个换能器振动。

    Rotating electrical machine
    2.
    发明授权
    Rotating electrical machine 有权
    旋转电机

    公开(公告)号:US08294322B2

    公开(公告)日:2012-10-23

    申请号:US12934962

    申请日:2009-03-12

    CPC分类号: H02K16/04 H02K17/02 H02K21/24

    摘要: In a rotating electrical machine, when a stator winding is wound in concentrated winding, an improvement in performance is achieved by reducing a magnetomotive force harmonic without reducing a fundamental wave magnetic flux generated by a stator. A rotating electrical machine (10) includes a rotor (18), and two stators (14, 16) opposed with the rotor (18) being interposed therebetween either on both sides of the rotor (18) in the axial direction or on both sides of the rotor (18) in the radial direction. Stator windings (22) provided in a plurality of portions in the circumferential direction of each stator (14, 16) are wound in concentrated winding. The directions of magnetic fluxes generated by stator windings (22) having the same phase in the stators (14, 16) are in mutually opposite directions with respect to either the axial direction or the radial direction. The stator windings (22) having the same phase in the stators (14, 16) are arranged to be shifted from each other by 180 degrees in electrical angle in the circumferential direction.

    摘要翻译: 在旋转电机中,当定子绕组卷绕在集中绕组中时,通过在不降低由定子产生的基波磁通的情况下减小磁动势谐波来实现性能的提高。 旋转电机(10)包括转子(18),与转子(18)相对的两个定子(14,16)插入转子(18)的轴向两侧或两侧 的转子(18)。 在每个定子(14,16)的圆周方向上设置的多个部分中的定子绕组(22)被卷绕在集中绕组中。 在定子(14,16)中具有相同相位的定子绕组(22)产生的磁通方向相对于轴向方向或径向相互相反的方向。 在定子(14,16)中具有相同相位的定子绕组(22)被布置成沿圆周方向以电角度相互偏移180度。

    ROTATING ELECTRICAL MACHINE
    3.
    发明申请
    ROTATING ELECTRICAL MACHINE 有权
    旋转电机

    公开(公告)号:US20110025158A1

    公开(公告)日:2011-02-03

    申请号:US12934962

    申请日:2009-03-12

    IPC分类号: H02K21/12 H02K17/00

    CPC分类号: H02K16/04 H02K17/02 H02K21/24

    摘要: In a rotating electrical machine, when a stator winding is wound in concentrated winding, an improvement in performance is achieved by reducing a magnetomotive force harmonic without reducing a fundamental wave magnetic flux generated by a stator. A rotating electrical machine (10) includes a rotor (18), and two stators (14, 16) opposed with the rotor (18) being interposed therebetween either on both sides of the rotor (18) in the axial direction or on both sides of the rotor (18) in the radial direction. Stator windings (22) provided in a plurality of portions in the circumferential direction of each stator (14, 16) are wound in concentrated winding. The directions of magnetic fluxes generated by stator windings (22) having the same phase in the stators (14, 16) are in mutually opposite directions with respect to either the axial direction or the radial direction. The stator windings (22) having the same phase in the stators (14, 16) are arranged to be shifted from each other by 180 degrees in electrical angle in the circumferential direction.

    摘要翻译: 在旋转电机中,当定子绕组卷绕在集中绕组中时,通过在不降低由定子产生的基波磁通的情况下减小磁动势谐波来实现性能的提高。 旋转电机(10)包括转子(18),与转子(18)相对的两个定子(14,16)插入转子(18)的轴向两侧或两侧 的转子(18)。 在每个定子(14,16)的圆周方向上设置的多个部分中的定子绕组(22)被卷绕在集中绕组中。 在定子(14,16)中具有相同相位的定子绕组(22)产生的磁通方向相对于轴向方向或径向相互相反的方向。 在定子(14,16)中具有相同相位的定子绕组(22)被布置成沿圆周方向以电角度彼此偏移180度。

    Synchronous motors and control circuits therefor
    4.
    发明授权
    Synchronous motors and control circuits therefor 失效
    同步电动机及其控制电路

    公开(公告)号:US06433503B1

    公开(公告)日:2002-08-13

    申请号:US09533755

    申请日:2000-03-23

    IPC分类号: H02P736

    CPC分类号: H02K29/08 H02P6/15 H02P6/30

    摘要: Hall ICs 23u, 23v and 23w are provided to detect the magnetic fields of magnetic regions 8 of a rotor 9 and are offset in position by an electrical angle of 30° from central positions of a U-phase stator pole 1, V-phase stator pole 6 and W-phase stator pole 2. A driving circuit 21 controls the timing of rotor driving signals that are supplied to respective stator coils for respective phases based upon rotor position signals outputted from the Hall ICs 23u through 23w. For example, in order to rotate the rotor in a forward direction, the driving circuit 21 controls the timing of the rotor driving signals according to a first logic. Similarly, in order to rotate the rotor in a reverse direction, the driving circuit 21 controls the timing of the rotor driving signals according to a second logic. A delay circuit 17 may delay the rotor position signals outputted from a position detector 23 by delay time according to the rotating speed of the reluctance motor so as to supply delayed signals to the driving circuit 21.

    摘要翻译: 霍尔集成电路23u,23v和23w被设置为检测转子9的磁区8的磁场,并且位置偏离与U相定子极1,V相定子的中心位置成30°的电角度 极点6和W相定子极2.驱动电路21基于从霍尔IC23u至23w输出的转子位置信号,控制供给相应各定子线圈的转子驱动信号的定时。 例如,为了使转子沿正向旋转,驱动电路21根据第一逻辑控制转子驱动信号的定时。 类似地,为了使转子沿相反方向旋转,驱动电路21根据第二逻辑控制转子驱动信号的定时。 延迟电路17可以根据磁阻电动机的转速来延迟从位置检测器23输出的转子位置信号的延迟时间,以将延迟的信号提供给驱动电路21。

    Resonant power electronic control of switched reluctance motor
    5.
    发明授权
    Resonant power electronic control of switched reluctance motor 失效
    开关磁阻电机谐振电力电子控制

    公开(公告)号:US5689164A

    公开(公告)日:1997-11-18

    申请号:US569460

    申请日:1995-12-08

    IPC分类号: H02J1/00 H02P25/08 H02P7/05

    CPC分类号: H02P25/0925

    摘要: An inductor-capacitor series resonant circuit is connected in series with a thyristor or other unidirectionally conductive semiconductor switch to form a resonant network, one resonant network for each stator phase winding of a switched reluctance motor to be connected in parallel to the stator phase winding. Zero current switching is achieved by selecting the resonant frequency such that the inductor and capacitor resonate in a time period during both turn-on and turn-off of the semiconductor switches. A C-dump circuit is included in one embodiment for increased power transfer efficiency.

    摘要翻译: 电感 - 电容串联谐振电路与晶闸管或其他单向导电半导体开关串联连接,形成谐振网络,一个谐振网络,用于开关磁阻电动机的每个定子相绕组并联连接到定子相绕组。 通过选择谐振频率来实现零电流切换,使得电感器和电容器在半导体开关的导通和关断期间的一段时间内谐振。 在一个实施例中包括C转储电路以提高功率传输效率。

    Driving unit for transducer
    7.
    发明授权
    Driving unit for transducer 失效
    传感器驱动单元

    公开(公告)号:US06994207B2

    公开(公告)日:2006-02-07

    申请号:US10280761

    申请日:2002-10-25

    IPC分类号: B65G27/00

    CPC分类号: H04R17/00 H02N2/065 H02N2/08

    摘要: A vibrating transducer is coupled to one end of an elongated vibrating plate and a receiving transducer is coupled to the other end of the vibrating plate. Langevin transducers are used for the vibrating and receiving transducers. Each transducer includes a pair of annular piezoelectric elements. The vibrating transducer is connected to an oscillator. A controller controls the oscillator. Detection signals of a voltage sensor, which detects the vibrating state of the receiving side of the vibrating plate, are fed back to the controller. The controller controls the oscillator such that the phase difference between the vibration of the vibrating side and the receiving side is within a predetermined range and that the receiving side is vibrated by amplitude greater than or equal to a predetermined amplitude.

    摘要翻译: 振动传感器耦合到细长振动板的一端,并且接收换能器耦合到振动板的另一端。 Langevin传感器用于振动和接收传感器。 每个换能器包括一对环形压电元件。 振动传感器连接到振荡器。 控制器控制振荡器。 检测振动板的接收侧的振动状态的电压传感器的检测信号被反馈到控制器。 控制器控制振荡器,使得振动侧和接收侧的振动之间的相位差在预定范围内,并且接收侧以大于或等于预定振幅的振幅振动。

    Electric power feeding device based on the electromagnetic induction
    8.
    发明授权
    Electric power feeding device based on the electromagnetic induction 失效
    基于电磁感应的馈电装置

    公开(公告)号:US5506560A

    公开(公告)日:1996-04-09

    申请号:US440882

    申请日:1995-05-15

    摘要: A power feeding device of three-leg core type having a primary and secondary cores which appear to be a three-leg core cut into two pieces at the legs and form a magnetic circuit including gaps by being coupled to face the cut surfaces, and a primary and secondary windings wound coaxially around the central leg section, with the primary core and primary winding constituting the power supply part and the secondary core and secondary winding constituting the power receiving part. The power feeding device based on this winding structure achieves a far better power transfer efficiency as compared with the conventional counterpart having the primary and secondary windings wound separately on a pair of E-shape cores.

    摘要翻译: 一种具有三芯芯型的供电装置,其具有主芯和二芯,其看起来是在腿部切成两个部分的三芯芯,并且通过联接以面对切割表面而形成包括间隙的磁路,并且 初级和次级绕组围绕中心支腿部分共轴缠绕,初级线圈和初级绕组构成电源部分,次级线圈和次级绕组构成电力接收部分。 与将一次和二次绕组单独缠绕在一对E形芯上的传统对应物相比,基于该绕组结构的馈电装置实现了更好的功率传递效率。