Rotating electrical machine and manufacturing method thereof
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United States of America Patent
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-
Jul 7, 2009
Grant Date -
Jul 13, 2006
app pub date -
Dec 12, 2005
filing date -
Oct 29, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A stator coil is configured of a first group of six turns of conductive wire, and a second group also of six turns, with the first group of six turns being wound on a spool, leaving a gap the same as the diameter of the conductive wire between winds. Upon completion of winding the first group, the winding is turned back, and the second group of six turns is wound in the gap, so as to be adjacent to the turns of the first group. The article is then inserted into a slot in a stator core of a stator, thereby configuring a stator coil. This provides for a rotating electrical machine and manufacturing method thereof with improved insulation resistivity regarding inverter surge voltage, and moreover high output can be obtained with a machine of comparable external dimensions with conventional machines.
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