STATOR OF ROTATING ELECTRIC MACHINE
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United States of America Patent
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app pub date -
Nov 6, 2015
filing date -
Nov 6, 2014
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Abstract
A stator includes a stator core having slots arranged in a circumferential direction and a stator coil formed by wave-winding continuous coil wires on the stator core. Each of the continuous coil wires has in-slot portions received in the slots and turn portions each of which connects, on the outside of the slots, one pair of the in-slot portions. The stator coil is formed, by spirally rolling a band-shaped coil wire bundle that is formed by bundling the continuous coil wires, into a cylindrical shape. In the coil wire bundle, the continuous coil wires are transposed at a plurality of locations. Moreover, in a range where the continuous coil wires extend in the circumferential direction of the stator core by one complete turn, at least one interval between adjacent transposition locations in the coil wire bundle is greater than or equal to the circumferential length of one turn portion.
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