To provide a stator which improves a core strength of the stator of a permanent magnet type motor, reduces sound and vibration, and ensures excellent quality and high performance.
The permanent magnet type motor provided with a plurality of tooth portions projecting from a yoke portion of the stator to a direction opposing a rotor reduces the sound and the vibration by forming a closed circuit in a notch portion provided at a spot with a low magnetic flux density by a yoke portion positioned inside a stator outer diameter. The stator is configured by inserting a winding wheel wound in advance by a winding mold or the like into a slot by a winding inserting machine so as to cross one of the stator tooth portions. The permanent magnet type motor having excellent quality and high performance is obtained by shortening a projecting length from a stator end face of each of the winding wheels inserted sequentially step by step than that of the winding wheel inserted into the stator slot at first.
SHIMIZU YUKIO
SATO MITSUHIKO
SUZUKI MITSUHIRO
MANO SHOJI
| JPH11341725A | 1999-12-10 | |||
| JP2000262023A | 2000-09-22 |
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