Patent · US Active

Electromechanical motor especially a piezoelectric microstepper motor

US8674585B2 · kind B2 · utility

1Cited by

5References

15Claims

0Family size

Assignee

CONTINENTAL AUTOMOTIVE GMBH · DE

Inventors

Heinrich-Jochen Blume · Darmstadt, DE
Bernhard Gottlieb · Munich, DE
Andreas Kappel · Höhenkirchen-Siegertsbrunn, DE
Robert Wolfgang Kissel · Egelsbach, DE
Karl-Heinz Mittenbühler · Griesheim, DE
Tim Schwebel · Birkenfeld, DE
Carsten Wallenhauer · Schwarzheide, DE

Key dates

Filing date	Apr 23, 2008
Grant date	Mar 18, 2014
Priority date	—
Expiry date	Dec 3, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH02N2/105
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A microstepper motor which comprises two electromechanical drive elements, especially piezoelectric bending actuators, having effective directions that are perpendicular to each other. These actuators act upon a drive ring to thereby rotate a shaft. The actuators are non-radially hinged to the drive ring via an approximately square shear-flexible and torsion-proof frame structure, the drive ring being arranged inside said frame. The drive according to the invention is compact, the frame and the drive ring being configured as a single injection-molded drive module.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.