Stator with core including divided cores, and electric motor
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United States of America Patent
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Mar 5, 2019
Grant Date -
Dec 17, 2015
app pub date -
Jun 3, 2015
filing date -
Jun 12, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Provided is a stator that can easily attach a coil to a tooth and that can reduce concentration of stress generated in the core during operation. The stator includes a plurality of divided cores aligned in a circumferential direction. Each divided core includes a tooth, and a divided back yoke extending from an end on a radially outside of the tooth to a first circumferential side. A radial width of the divided back yoke is smaller than or equal to a circumferential width of the tooth. A connecting surface is arranged at an end on a second circumferential side of the divided yoke, the connecting surface being a plane or a convex surface extending from a side surface on the second circumferential side of the tooth to an outer circumferential surface of the divided back yoke.
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