Brake assembly for an electric motor

US11674557B2 · kind B2 · utility

Assignee

• SEW-EURODRIVE GMBH & CO. KG · DE

Inventors

• Gerolf FICHTNER-PFLAUM · Weierbach-Siedlung, DE
• Florian Rieger · Karlsruhe, DE

Key dates

• Filing date: Apr 25, 2019
• Grant date: Jun 13, 2023
• Expiry date: Mar 9, 2040

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16D2125/08
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A brake assembly for an electric motor includes: a magnetic body, a winding, a bolt, a housing part with a brake surface, an armature disk, a brake pad plate, a shaft, a spring part, and a first bushing. The housing part is connected to the magnetic body by the bolt, with a positive fit in at least the circumferential direction. The first bushing is accommodated in a second bushing. The spring part supported on the housing part presses the first bushing and/or the second bushing toward the magnetic body. The radial clearance range covered by the armature disk includes the radial clearance range covered by the second bushing, and the axial region covered by the armature disk includes the axial region covered by the second bushing.