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1. 发明申请

US20030127317A1 High intensity radial field magnetic array and actuator 失效
标题翻译：高强度径向磁场阵列和执行器
公开(公告)号：US20030127317A1
公开(公告)日：2003-07-10
申请号：US10255984
申请日：2002-09-26
申请人： ENGINEERING MATTERS, INC.
发明人： David B. Cope , Andrew M. Wright
IPC分类号： B01J019/08
CPC分类号： H01F7/20 , H01F7/066
摘要： A miniature actuator, e.g., for use in a Micro Air Vehicle, comprises at least one nested array of magnets, with an outer annular magnet with a magnetization pointing in an axial direction, a middle annular magnet with a radial magnetization, and an inner cylindrical magnet with a magnetization directed anti-parallel to the magnetization of the outer annular magnet. In one embodiment, a permanent magnet actuator comprises such an array, and a conductive coil having a current distributed over the volume of the conductive coil, wherein the magnetic field of the array is perpendicular to the current located in the coil. The coil may be located above or below the first magnetic array. In another embodiment, a conductive coil is disposed between two magnetic arrays. The coil may have a winding that is pancake-shaped, solenoidal, or toroidal and may comprise more than one winding. The magnetic arrays may be canted to permit the toroidal winding to expand, affording control over the spread of the magnetic field in the gap.
摘要翻译：微型致动器，例如用于微型飞行器的微型致动器包括至少一个嵌套的磁体阵列，具有指向轴向的磁化的外部环形磁体，具有径向磁化的中间环形磁体和内部圆柱形具有与外部环形磁体的磁化反平行的磁化的磁体。在一个实施例中，永磁体致动器包括这种阵列，以及具有分布在导电线圈的体积上的电流的导电线圈，其中阵列的磁场垂直于位于线圈中的电流。线圈可以位于第一磁性阵列的上方或下方。在另一个实施例中，导电线圈设置在两个磁阵列之间。线圈可以具有扁平形状，螺线管或环形的绕组，并且可以包括多于一个绕组。可以将磁阵列倾斜以允许环形绕组膨胀，从而提供对间隙中的磁场扩展的控制。

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