Slotted wound stator for an electrical rotating machine, a method for manufacturing such a stator and a machine comprising such stator
US5698925A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 7, 1996 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Mar 7, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P80/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Each stator lamination (2) is angularly offset with respect to the following adjacent lamination, about an axis (4) of the stator (1, 3), by a constant angle (.alpha.) equal to a multiple of the angle corresponding to the slot pitch, and has a square shape, each corner (5) being truncated to a circular outline (6). At least one of the two truncated corners (5) of each lamination (2) is linked to the corner (5) corresponding to each of the two adjacent laminations (2) by at least one welding point (11) located in a region where the two outlines (6) extend or are superimposed. The welding points (11) are located in predetermined respective angular positions cyclically reproducible in relation to the stator axis (4) and are uniformly distributed about the axis (4) so that the welding points (11) are aligned according to lines (15a, 15b) of welding points (11) substantially parallel to the stator axis (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.