Controlled adjustable manufacturing method for variable laminations used in electro-magnetic induction devices
US5640752A · kind A · utility
Inventor
Key dates
| Filing date | Jan 12, 1995 |
| Grant date | Jun 24, 1997 |
| Priority date | — |
| Expiry date | Jan 12, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/178
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A controlled adjustable method for forming and stacking laminations that are used in an electro-magnetic device such as a motor or transformer is disclosed. The method steps provide the incremental forming of a predetermined number of laminations from magnetically conductive material with each lamination having at least one coil winding segment of predetermined incrementally varying width. Each coil winding segment is formed by the movement of variable electrically adjustable mechanical forming elements such as punching or stamping dies or laser devices relative to magnetically conductive material. Following formation of the laminations with the aforementioned coil winding segments of predetermined incrementally varying width, the laminations, with the formed coil winding segments, are stacked to provide a combined generally circular outer winding area about which a predetermined length of conductive wire can be positioned, either directly around the winding area by the placement of a bobbin wound with the electrically conductive wire, or the wire can be wound about a split bobbin that is first assembled over the winding area for subsequent winding with the electrically conductive …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.