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US 8,508,096 B2Granted
Stator core and spindle motor having the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsDae Lyun Kang, Dong Yeon Shin
Life of this patent
Estimating the term…
Abstract
There is provided a stator core including a core back having an opening such that the core back is fixed to a stationary member by being pressed and fitted thereto; and a plurality of teeth portions being protruded from the core back in a radial direction, each teeth portion including a winding recess around which a coil is wound, wherein the core back and the teeth portions are formed by a sintering process. Since the coil is wound around the winding recess, the height of the wound coil can be reduced.
Claims8
A stator core comprising:
- a core back having an opening such that the core back is fixed to a stationary member by being pressed and fitted thereto;
- and
- a plurality of teeth portions being protruded from the core back in a radial direction, each teeth portion including a winding recess around which a coil is wound,
- the core back and the teeth portions formed by a sintering process,
- the core back having a receiving recess allowing a pulling magnet mounted therein to be disposed around the opening, the pulling magnet preventing lifting of a rotor, and
- the coil wound around the winding recess having a height lower than that of the pulling magnet mounted in the receiving recess.
3 more elements
A spindle motor comprising:
- a base plate;
- a stationary member fixed to the base plate;
- and
- a stator core comprising
- a core back having an opening such that the core back is fixed to the stationary member by being pressed and fitted thereto, and
- a plurality of teeth portions being protruded from the core back in a radial direction, each teeth portion including a winding recess around which a coil is wound,
- the core back and the teeth portions formed by a sintering process,
- the core back having a receiving recess allowing a pulling magnet mounted therein to be disposed around the opening, the pulling magnet preventing lifting of a rotor, and
- the coil wound around the winding recess having a height lower than that of the pulling magnet mounted in the receiving recess.
6 more elements
Dependencies are inferred from the claim text.