Electric rotating machine
US5475276A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1995 |
| Grant date | Dec 12, 1995 |
| Priority date | — |
| Expiry date | Feb 9, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K5/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric rotating machine with a lightweight and low cost yoke which has sufficient durability to be used under high vibration environments. A tubular yoke for electric rotating machine has a pair of lid portions laid on both axial ends of a tubular portion of a yoke. Through bolts for press-fitting the pair of lid portions from both sides tightens and fixes the pair of lid portions to the yoke. Concave portions extending from the outer circumference to the inner circumference are formed axially on the tubular portion. The center where the tightening force of the through bolts is applied is set between the hypothetical extension outer diameter and inner diameter of the tubular portion at the concave portion so that the tubular portion and the lid portions are tightened and fixed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.