Motor with sheet-like coil

Details Motor with sheet-like coil Motor with sheet-like coil

2009-06-09

2011-10-11

Nguyen, Tran (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

Reexamination Certificate

active

08035267

ABSTRACT:
A spindle motor includes: a stator yoke having a circular cylinder shape; a rotor magnet disposed opposite to the stator yoke with an air gap therebetween; a sheet-like coil disposed at a surface of the stator yoke opposing the rotor magnet; and a bearing structure, wherein the sheet-like coil includes a plurality of individual coils having a spiral-shape and arrayed in a circumferential direction, and a pattern made of a same material as the individual coils and disposed between two adjacent individual coils.

REFERENCES:
patent: 3858308 (1975-01-01), Peterson
patent: 4340833 (1982-07-01), Sudo et al.
patent: 5541898 (1996-07-01), Kasuga et al.
patent: 6215219 (2001-04-01), Hwang
patent: 6545378 (2003-04-01), Chen et al.
patent: 08-222425 (1996-08-01), None
patent: 2002-027720 (2002-01-01), None

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