Slip ring brush assembly and method
    2.
    发明授权
    Slip ring brush assembly and method 失效
    滑环刷总成及方法

    公开(公告)号:US06861779B2

    公开(公告)日:2005-03-01

    申请号:US09870567

    申请日:2001-06-01

    摘要: An assembly for transferring current comprises at least one electrically conductive slip ring; at least one electrically conductive brush for supplying current to the at least one slip ring; and an electric or pressure actuator driven vibration source for changing the position of the brush with respect to the slip ring. If desired, brush current can shared by using inductance variations or by selective coupling of rotor windings to the slip rings.

    摘要翻译: 用于传送电流的组件包括至少一个导电滑环; 至少一个用于向所述至少一个滑环提供电流的导电刷; 以及用于改变刷子相对于滑环的位置的电动或压力致动器驱动的振动源。 如果需要,可以通过使用电感变化或通过将转子绕组选择性地耦合到滑环来共享刷电流。

    Direct current machine monitoring system and method
    3.
    发明授权
    Direct current machine monitoring system and method 有权
    直流机监控系统及方法

    公开(公告)号:US06507797B1

    公开(公告)日:2003-01-14

    申请号:US09579488

    申请日:2000-05-30

    IPC分类号: G01R2318

    CPC分类号: G01R31/343

    摘要: A direct current machine monitoring system includes a current sensor for monitoring load current of the machine; and a computer for obtaining a power spectrum in a range including a machine trait-passing frequency, determining a magnitude of a maximum peak in the power spectrum in a range including the trait-passing frequency plus or minus an uncertainty frequency, and evaluating the magnitude of the maximum peak to assess a condition of the machine. The computer may additionally or alternatively be used for obtaining a low frequency power spectrum of the load current, obtaining at least one magnitude of a component of the power spectrum at a respective predicted frequency, and evaluating the at least one magnitude of the component to assess the condition of the machine.

    摘要翻译: 直流电机监控系统包括用于监测机器负载电流的电流传感器; 以及计算机,用于在包括机器特性通过频率的范围内获得功率谱,确定功率谱中包括特征通过频率加或减不定频率的范围内的最大峰值的幅度,并且评估幅度 的最大峰值来评估机器的状况。 计算机可以另外地或替代地用于获得负载电流的低频功率谱,以相应的预测频率获得功率谱的分量的至少一个幅度,以及评估该组件的至少一个量级以评估 机器的状况。

    Staggered cooling holes for enhanced heat transfer in air-cooled motors
    4.
    发明授权
    Staggered cooling holes for enhanced heat transfer in air-cooled motors 失效
    交错冷却孔,用于增强风冷电机的传热

    公开(公告)号:US5859483A

    公开(公告)日:1999-01-12

    申请号:US959295

    申请日:1997-10-24

    IPC分类号: H02K1/20 H02K1/32 H02K15/02

    CPC分类号: H02K1/32 H02K1/20 H02K15/02

    摘要: A method for fabricating a stack of motor laminations comprises forming cooling holes in each of the motor laminations and stacking the motor laminations with respective ones of the cooling holes in the laminations at least partially coincident to form a staggered cooling passage by having at least some of the cooling holes extending further into the cooling passage than others of the cooling holes. In one embodiment, the cooling holes can be perturbed cooling holes which are radially displaced from another cooling hole, azimuthally displaced from a hole axis, having an asymmetrical shape, being a different size from another cooling hole, or being shaped so that the rotation and stacking of a subsequently applied lamination results in a situation wherein adjacent cooling holes are not precisely aligned.

    摘要翻译: 一种用于制造电动机叠片的堆叠的方法包括在每个电动机叠片中形成冷却孔,并且将电动机叠片与层叠体中的各个冷却孔堆叠起来至少部分重合,以形成交错的冷却通道, 冷却孔比其他冷却孔进一步延伸到冷却通道中。 在一个实施例中,冷却孔可以是扰动的冷却孔,其从另一个冷却孔径向移位,从孔轴方位角偏移,具有不对称形状,与另一个冷却孔的尺寸不同,或者成形为使得旋转和 随后施加的层压体的堆叠导致相邻冷却孔不精确对准的情况。

    Cleaning/cooling of high-power rotary current collector system
    5.
    发明授权
    Cleaning/cooling of high-power rotary current collector system 失效
    大功率旋转集电器系统的清洗/冷却

    公开(公告)号:US06465926B2

    公开(公告)日:2002-10-15

    申请号:US09731875

    申请日:2000-12-08

    IPC分类号: H02K1300

    CPC分类号: H01F38/18 H01R39/14 H02K9/28

    摘要: An electrical current collector system (20) comprises an electrically conductive slip ring (27) mounted to a rotatable shaft (28), as well as a fixed conducting ring assembly (44) having slip ring-contacting members (240, 404) mounted thereon. The slip ring (27) and fixed conducting ring assembly (44) are mounted to have an annular gap (48) formed therebetween. A slip ring support assembly (42) comprising plural post insulators (102) spaced radially about the rotatable shaft attaches the conductive slip ring to the rotatable shaft. The slip ring and fixed conducting ring assembly are at least partially enclosed in a compartment (57), to which a source (302) applies a cooling/cleaning fluid. In accordance with the structure and method of the invention, the source directs the fluid over at least some of the post insulators for cleaning of the post insulators. Then the fluid travels through the gap to perform at least one of cooling and cleaning of an interface of the slip ring and the slip ring-contacting members. The conductive ring channel then directs the fluid in at least a partially semicircular path to an exhaust duct (350).

    摘要翻译: 集电器系统(20)包括安装到可旋转轴(28)的导电滑环(27)以及安装在其上的具有滑环接触构件(240,404)的固定导电环组件(44) 。 滑环(27)和固定导电环组件(44)安装成在其间形成有环形间隙(48)。 包括围绕可旋转轴径向隔开的多个柱绝缘体(102)的滑环支撑组件(42)将导电滑环附接到可旋转轴。 滑环和固定导电环组件至少部分地封闭在隔室(57)中,源(302)施加冷却/清洁流体。 根据本发明的结构和方法,源将流体引导至至少一些后绝缘体以清洁柱绝缘体。 然后,流体通过间隙行进以执行滑环和滑环接触构件的界面的冷却和清洁中的至少一个。 导电环通道然后将至少部分半圆形路径中的流体引导到排气管道(350)。

    Envelope for slip-ring contacting members in high-power rotary current collector system
    6.
    发明授权
    Envelope for slip-ring contacting members in high-power rotary current collector system 失效
    大功率旋转集电器系统中滑环接触构件的信封

    公开(公告)号:US06472791B1

    公开(公告)日:2002-10-29

    申请号:US09731879

    申请日:2000-12-08

    IPC分类号: H02K1300

    摘要: An electrical current collector system (20) comprises a rotatable shaft (28) having at least one and preferably plural electrically conductive slip rings (27) mounted thereon. For each phase, a slip ring is paired with a fixed conducting ring assembly (44). The fixed conducting ring assembly forms an envelope within which slip ring-contacting members are situated. The slip ring-contacting members can take many forms, including brushes (240) or rollers (404). The fixed conducting ring assembly comprises a first conducting plate (200T) and a second conducting plate (200B) positioned parallel to one another to form a conductive ring channel (220) therebetween. The slip ring-contacting members (240, 404) are mounted in the conductive ring channel. An at least partially transparent wall (200W) extends between the first conductive plate and the second conductive plate of the fixed conducting ring assembly to further define the conductive ring channel and permit visual inspection of the slip ring-contacting members. An air flow gap (48) exists is preferably provided between the slip ring and the fixed conducting ring assembly. The envelope acts as an electrostatic shield or Faraday cage. The envelope is a high voltage envelope which puts the slip ring-contacting members and other components within the envelope at a same high voltage as the fixed conducting ring assembly. Each pair of fixed conducting ring assembly and slip ring is substantially enclosed in its own grounded compartment (57) for providing electromagnetic shielding.

    摘要翻译: 集电器系统(20)包括具有安装在其上的至少一个且优选多个导电滑环(27)的可旋转轴(28)。 对于每个相,滑环与固定的导电环组件(44)配对。 固定导电环组件形成一个封套,滑环接触构件位于该封套内。 滑环接触构件可以具有许多形式,包括刷子(240)或辊子(404)。 固定导电环组件包括彼此平行定位以在其间形成导电环通道(220)的第一导电板(200T)和第二导电板(200B)。 滑环接触构件(240,404)安装在导电环形通道中。 至少部分透明的壁(200W)在固定导电环组件的第一导电板和第二导电板之间延伸,以进一步限定导电环通道,并允许目视检查滑环接触构件。 优选地,在滑环和固定导电环组件之间设置有气流间隙(48)。 信封充当静电屏蔽或法拉第笼。 外壳是一个高电压外壳,它将滑环接触部件和其他部件放置在外壳内与固定导电环组件相同的高电压。 每对固定导电环组件和滑环基本封闭在其自身的接地隔间(57)中,用于提供电磁屏蔽。