Bobbin apparatus for reducing gap losses in magnetic components
US9183974B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2013 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Jul 29, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F27/306
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bobbin apparatus and associated magnetic component is configured to reduce gap losses associated with a core air gap in a bobbin-wound magnetic component such as an inductor or transformer. The bobbin includes a step structure protruding from the winding surface between bobbin ends. The step is operable to provide spacing between the conductive windings disposed on the bobbin and the core air gap inside the bobbin axial passage. The spacing reduces stray flux interactions with the conductive winding, thereby reducing gap losses and preventing undesirable heating of the winding and core. Additional winding configurations and methods for use with the bobbin apparatus are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.