Magnetic levitation actuator

US7142078B2 · kind B2 · utility

Assignees

• COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES · FR
• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• Institut National Polytechnique de Grenoble · FR

Inventors

• Hervé Rostaing · Le Versoud, FR
• Jerome Delamare · Grenoble, FR
• Orphée Cugat · Poisat, FR
• Christel Locatelli · Crolles, FR

Key dates

• Filing date: Jul 30, 2003
• Grant date: Nov 28, 2006
• Expiry date: Jul 30, 2023

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H2037/008
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A magnetic actuator including a mobile magnetic part, a fixed magnetic part, and a mechanism for triggering displacement of the mobile magnetic part relatively to the fixed magnetic part. At least two amagnetic supports, placed in different planes, delimit a gap between them, the fixed magnetic part being integral with at least one of the supports. The supports each have an abutment area for the mobile magnetic part, the abutment area being distinct from the fixed magnetic part. The mobile magnetic part is in levitation in the gap between both supports by magnetic guiding due to the fixed magnetic part when it does not abut against the abutment area of one of the supports. The mobile magnetic part can assume plural stable magnetic positions; in each of these positions, it abuts against a support.