Induction generator

US9013084B2 · kind B2 · utility

Assignee

• ZF FRIEDRICHSHAFEN AG · DE

Inventor

• Eduard Ruff · Zwingenberg, DE

Key dates

• Filing date: Feb 14, 2011
• Grant date: Apr 21, 2015
• Expiry date: Jun 30, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K35/02
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An induction generator for a radio switch having a magnet element as well as an induction coil with a coil core wherein the coil core is U-shaped, wherein a first rest position and a second rest position are in each case defined for the magnet element, in contact with the limbs of the coil core, and a flux direction reversal takes place in the coil core, whenever a change takes place between these positions, wherein a movement path for the magnet element is predetermined for a movement between the rest positions, wherein the induction generator has a first mechanical energy storage device which is operatively connected to the magnet element and first of all stores energy in the course of forcing a movement from a rest position and, after reaching an intermediate position, which is defined along the movement path and corresponding to which the magnetic forces on the coil core suddenly decrease, emits this energy to the magnet element in order to mechanically accelerate the movement of the magnet element to the respective other rest position after leaving the intermediate position.