Stator pole structure for an electrical machine
Patent 7164220 Issued on January 16, 2007. Estimated Expiration Date: 
May 12, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 12, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3235761 3809938 3919348 Electrical machine with a stator lamination of grain-oriented sheets Patent #: 4672252 InventorsAssigneeApplicationNo. 11127104 filed on 05/12/2005US Classes:310/266, Hollow (e.g., double air gap)310/216, Core features310/254, Stator structure310/172, Shifting field (e.g., shading pole)336/219, CORE INSULATION (E.G., BETWEEN CORE PARTS)310/215, Slot liners29/596Dynamoelectric machineExaminersPrimary: Tamai, KarlAssistant: Preston, Erik Attorney, Agent or FirmForeign Patent References
International ClassesH02K 1/22H02K 1/00 AbstractAn electrical machine, such as a transverse flux motor, incorporates a stator core assembly 1. The stator core assembly 1 comprises a stator frame 4 upon which stator cores 2,3 are located with spacer elements 7 therebetween. A number of stator pole members 10,11 are located such that channels 13 in these members 10,11 accommodate limbs 5,6 of the cores 2,3. The stator pole members 10,11 straddle more than two limbs 5,6 in order to provide greater structural stability for the assembly 1 despite magnetic flux cycling and other distortion effects. By such greater structural stability more accurate control of a gap between the stator core assembly 1 and a rotor in the machine can be maintained. | |
