Magnetic subassembly of an electrical breaker apparatus
US6956454B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2005 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Mar 29, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/2454
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Magnetic subassembly for electrical breaker apparatus, comprising a magnetic yoke (10), a fixed core (39) and a moveable core (30) sliding along an axis (X) inside an insulating sheath (20) under the action of an induction coil (25) arranged around the sheath (20). The moveable coil (30) possesses a radial annulus (33) separating a first part (31) and a second part (32) of different radial section, the magnetic yoke (10) comprises a radial face (11) perpendicular to the axis (X) with an opening (19) centred on the axis (X) and traversed by the first part (31) of the moveable core (30). The opening (19) comprises a fluted perimeter composed of a plurality (N) of teeth (17) directed towards the axis (X), hollow zones (15) situated between each tooth (17) accommodating an end of the insulating sheath (20).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.