Six-degree-of-freedom linear motor
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United States of America Patent
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May 12, 2020
Grant Date -
Dec 28, 2017
app pub date -
Dec 29, 2015
filing date -
Dec 30, 2014
priority date (Note) -
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Abstract
A six-degree-of-freedom linear motor is disclosed, including a magnet array and a coil group disposed above the magnet array, the magnet array includes a first Halbach magnet array and a second Halbach magnet array, the first Halbach magnet array has a parallelogrammic cross section in a plane defined by X- and Y-axes, the first Halbach magnet array has a first side parallel to the Y-axis and a second side forming an angle of θ with the Y-axis, the second Halbach magnet array is in mirror symmetry with the first Halbach magnet array with respect to the Y-axis, and the coil group includes a first, second, third and fourth coil group, each having an axis inclined at an angle of θ with respect to the Y-axis, the first and second coil groups are in mirror symmetry with the third and fourth coil groups with respect to the Y-axis, respectively.
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