Spindle motor
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsNam Ki Park, Sang Jin Park
Life of this patent
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Abstract
Disclosed herein is a spindle motor including: a rotor including a shaft, a hub, and a magnet; a stator including a sleeve rotatably supporting the shaft, a base having the sleeve coupled thereto, and an armature facing the magnet, fixedly coupled to the base, and including a core and a coil; and a fluid dynamic bearing part formed between the rotor and the stator by being filled with oil, wherein the stator further includes a pulling plate disposed to face the magnet in an axial direction of a shaft, coupled to the base, and protruded upwardly toward the core in a axial direction of a shaft.
Claims5
A spindle motor comprising:
- a rotor including a shaft, a hub, and a magnet;
- a stator including a sleeve rotatably supporting the shaft, a base having the sleeve coupled thereto, and an armature facing the magnet, fixedly coupled to the base, and including a core and a coil;
- and
- a fluid dynamic bearing part formed between the rotor and the stator by being filled with oil,
- wherein the stator further includes a pulling plate disposed to face the magnet in an axial direction of a shaft, coupled to the base, and protruded upwardly toward the core in a axial direction of a shaft.
Dependencies are inferred from the claim text.