Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2006-10-24
2006-10-24
Nguyen, Tran (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
Reexamination Certificate
active
07126248
ABSTRACT:
A motor includes a stator formed by assembling plural divided-stator-members—each one of the members having a tooth—into an annular shape, and a rotor facing the stator. The divided stator members are formed by laminating plural core sheets and bonding at least parts of end faces along the laminating direction of the core sheets. This structure allows forming a lamination of the core sheets without welding, which avoids damaging electrical insulation between each core sheet. Eddy current thus does not increase at an inner rim of the stator, where magnetic flux intensely changes. The motor efficiency is, therefore, not adversely affected. As a result, a small, efficient and high performance motor in a simple structure is obtainable. A compressor employing the same motor and enjoying the advantages of the motor is also obtainable.
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Relevant portion of International Search Report of parent applicaiton's corresponding PCT Application PCT/JP2002/01834.
Ikkai Yasufumi
Nishiyama Noriyoshi
Okazaki Seiji
Matsushita Electric - Industrial Co., Ltd.
Nguyen Tran
Rossi Kimms & McDowell LLP
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