公开(公告)号：JP2001054244A

公开(公告)日：2001-02-23

申请号：JP2000221036

申请日：2000-07-21

Applicant: ABB RESEARCH LTD

Inventor： SHEN JINXING ,  DECKART ULRICH ,  PORTEOUS TOM ,  JENSEN NIELS M

IPC: H02K1/18 ,  H02K1/12 ,  H02K15/02

Abstract: PROBLEM TO BE SOLVED: To mechanically and permanently connect an external stator ring and an internal stator ring, without the use of a bonding agent by mechanically bonding these rings by winding them with a strip. SOLUTION: Any of the external stator ring 4 and internal stator ring 5 is manufactured from a strip of the particular shape. A strip used to wind an external stator ring 4 is provided with wedge-type notches 4K at a constant interval. Each notch 4K in the layer is covered completely with a closed part when the strip is wound, which does not, result in formation of gap. Meanwhile, the internal stator ring 5 is manufactured with a strip providing tooth-shape using a similar method. The internal stator ring 5 is cooled, an external stator ring 4 is heated, and the internal stator ring 5 is pushed into the external stator ring 4. As a result, two stator rings 4 and 5 are connected permanently rigidly, when these are returned to the room temperature.