High performance ironless linear motor with supported windings
US6239516A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A linear motor utilizing a flat, ironless, printed circuit type winding where the winding can be stamped, etched, or deposited and adhered to a rigid substrate. The winding provides coils that are relatively movable between straight, parallel rows of stationary magnets, or between one row of magnets and a parallel flux return member. In most applications the preferred structure is a moving winding and stationary permanent magnets. The advantage over the existing art is the significantly lower cost to manufacture and the almost limitless ability to create complex windings for improved performance without complicated tooling or winding machines. Also, higher performance is achieved due to a smaller air gap. The structure also provides higher winding stiffness, yet lower mass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.