US Patent 7619343 Rotor for an electrical motor

Patent 7619343 was granted and assigned to Danfoss Compressors GmbH on November, 2009 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

Danfoss Commercial Compressors

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7619343

Date of Patent

November 17, 2009

Patent Application Number

11312983

Date Filed

December 19, 2005

Patent Primary Examiner

‌

Quyen Leung

Patent abstract

The invention provides a rotor for an electrical motor. The rotor comprises both a squirrel cage and a number of magnets and can be inserted e.g. in a line-start motor. To secure the magnets in cavities in a core of the rotor, an end plate is attached to one axial end face by rivet means, and to simplify manufacturing of the rotor, the rivet means forms part of at least one of the short circuit rings of the squirrel cage.