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US 8,804,279 B2Granted
Spindle motor and hard disk drive including the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorViatcheslav Smirnov
Life of this patent
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Abstract
There is provided a spindle motor including a sleeve rotatably supporting a shaft, a rotor coupled to an upper end of the shaft and rotating together with the shaft, a stopper part coupled to a main wall part protruding from one surface of the rotor and facing an outer peripheral surface of the sleeve, a cover plate coupled to the sleeve while maintaining a clearance between the cover plate and lower portions of the shaft and the sleeve, a base member coupled to the cover plate, and a stator holder fixedly disposed on the base member.
Claims8
A spindle motor comprising:
- a sleeve rotatably supporting a shaft;
- a rotor coupled to an upper end of the shaft and rotating together with the shaft;
- a stopper part coupled to a main wall part protruding from one surface of the rotor and facing an outer peripheral surface of the sleeve;
- a cover plate coupled to the sleeve while maintaining a clearance between the cover plate and lower portions of the shaft and the sleeve;
- a base member coupled to the cover plate;
- and
- a stator holder fixedly disposed on the base member,
- wherein the cover plate includes a closing part disposed below the shaft and the sleeve, a fixing part extended from the closing part in an axial direction and coupled to an outer peripheral surface of the sleeve, and a bent part extended from the fixing part so as to be coupled to the stator holder.
5 more elements
Dependencies are inferred from the claim text.