ROTARY ELECTRIC MACHINE STATOR, ROTARY ELECTRIC MACHINE, AND MANUFACTURING METHOD OF ROTARY ELECTRIC MACHINE STATOR

• Main Authors: ONIHASHI TAKAYUKI, HAMAZAKI MITSUMASA, NOMIYAMA YUTAKA
• Format: Patent
• Language: English; Japanese
• Published: 08.08.2019
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

To provide a rotary electric machine stator capable of improving space factor of coils, and of improving characteristics of a rotary electric machine; and to provide a rotary electric machine, and a manufacturing method of the rotary electric machine stator.SOLUTION: Winding wires are wound around each tooth 72, and there are provided coils 11, 12 stored in a slot part 73 surrounded by a tooth 72 and a back yoke 70. The coil 12 from the beginning to the last, whose winding wire is wound around the tooth 72, that is stored in the slot part 73 classifies an inner layer group 25, an intermediate layer group 26, and an outer layer group 27. Each winding part pitch L1 in a radial direction X for each winding order of the winding wire in the inner layer group 25 is formed to be shorter than each winding part pitch L2 in the intermediate layer group 26. Each winding part pitch L3 in the outer layer group 27 is formed to be shorter than each winding part pitch L2 in the intermediate layer group 26.SELECTED DRAWING: Figure 3 【課題】コイルの占積率を向上させ、回転電機の特性を向上できる回転電機のステータ、回転電機、および、回転電機のステータの製造方法を提供する。【解決手段】各ティース７２に巻線を巻回されるとともにティース７２およびバックヨーク７０にて囲まれたスロット部７３に収納されたコイル１１、１２とを備え、コイル１２は、ティース７２に対して巻線が巻回されスロット部７３に収納される最初から最後までを、巻回の順番の最初から、内層群２５と、中間層群２６と、外層群２７とに分類し、内層群２５の巻線の巻回の順番毎の径方向Ｘの各巻部ピッチＬ１が、中間層群２６の各巻部ピッチＬ２より短く形成され、外層群２７の各巻部ピッチＬ３が、中間層群２６の各巻部ピッチＬ２より短く形成される。【選択図】図３