Torque sensor with mathematically smooth claws

US10551259B2 · kind B2 · utility

Assignee

• Bourns, Inc. · US

Inventors

• Sebastian Berner · Munich, DE
• Benno Pichler · Aying, DE
• Andreas Sommer · Abtsgmünd, DE

Key dates

• Filing date: May 23, 2018
• Grant date: Feb 4, 2020
• Expiry date: May 23, 2038

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D5/0481
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A stator to guide a location-dependent magnetic field in a circumferential direction around a rotation axis. In one example, the stator includes a first stator ring revolving around the rotation axis, and a second stator ring revolving around the rotation axis and arranged concentrically with the first stator ring. The first and second stator rings include claws which are arranged so as to revolve around the rotation axis and at a distance from one another in the circumferential direction and engage with one another at least on a toothing axial plane. The claws are separated from one another by an air gap so that, when the magnetic field is arranged in the toothing axial plane, the magnetic field is guided towards the stator rings via the claws according to a relative angular position. Each claw has the contour of a mathematically smooth curve when viewed across the circumferential direction.