Apparatus and method for manufacture of bell-shaped armatures
US4151964A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 1977 |
| Grant date | May 1, 1979 |
| Priority date | — |
| Expiry date | Dec 30, 1997 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for manufacture of bell-shaped, air core armatures for fractional horse power electrical d.c. motors. A metal wire is wound on a slantingly in relation to the armature axis uninterruptedly in such a way as to form triangular equal-sided conductor fields. For winding, the wire is led around the outer edges by two guiding devices of which one is arranged at the upper end, and the other at the lower end of a rotable cylindrical auxiliary device. The windings are staggered with respect to each other by 180.degree. electrically. One turn of the winding is placed next to the other until the armature winding is completed. The apparatus includes a cylindrical auxiliary device with tape-like guiding means clamped on the surface of the device or mandrel, the guiding means extending tangentially in relation to the mandrel cylindrical surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.