Rotor of a permanently excited synchronous machine

US9343935B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Daniel Mader · Bad Neustadt an der Saale, DE
• Rolf Vollmer · Gersfeld, DE

Key dates

• Filing date: Aug 8, 2013
• Grant date: May 17, 2016
• Expiry date: Sep 9, 2034

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K1/2773
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A rotor of a permanently excited synchronous machine includes a shaft capable of rotating about an axis and a laminated core having an axial layering arrangement defined by planes which are aligned perpendicular to the axis. The laminated core has at least two layers of different geometry. A first layer has a plate with a closed outer contour at least at an outer periphery, and a second layer has plural plate segments. The first and second layers of the laminated core are arranged in an axial direction to form axial pockets in interspaces between the plate segments of the second layer and recesses formed radially within the outer contour of the first layer for receiving permanent magnets. An adhesive is provided in radial gaps formed at least in axial sections of the second layer between adjacent plate segments and the permanent magnets.