Motor having stator assembly with integrated mounting and heat sink features
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United States of America Patent
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-
Oct 31, 2017
Grant Date -
Feb 18, 2016
app pub date -
Aug 14, 2015
filing date -
Aug 15, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A step motor integrates its mounting face and heat sink into the stator design. In particular, mounting holes (typically, four in number) are provided through the stator stack in outer perimeter areas. The stator stack itself becomes the mounting surface, allowing the heat generated from the stator to conduct directly to the mounting plate. The front end cap for holding the rotor in alignment is situated inside of the stator's mounting surface and takes no part in mounting the motor to the mounting surface. The end caps only hold the rotor in proper relation within the stator and contain the bearing assembly for the rotor's axial drive shaft. The perimeter of the stator assembly between the mounting screw holes may have saw-tooth cutouts that define heat-dissipation fins.
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