Spindle motor
AssigneesIucf-Hyu (Industry-University Cooperation Foundation Hanyang University), Samsung Electro-Mechanics Co., Ltd.
InventorsHan Byul KIM, Gun Hee JANG, Kyung Mun JUNG, Ju Ho KIM, Hong Joo LEE
Life of this patent
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Abstract
There is provided a spindle motor, including: a hub rotating together with a shaft; a sleeve supporting rotation of the shaft via oil; and a pumping part formed in at least one of the sleeve and the hub to pump the oil leaked outside of an interface of the oil in a normal state in a direction toward the interface of the oil in the normal state, wherein a portion of the pumping part may contact the oil in the normal state and the remainder of the pumping part does not contact the oil in the normal state.
Claims13
A spindle motor, comprising:
- a hub rotating together with a shaft;
- a sleeve supporting rotation of the shaft via oil;
- and
- a pumping part formed in at least one of the sleeve and the hub to pump the oil leaked outside of an interface of the oil in a normal state in a direction toward the interface of the oil in the normal state,
- wherein a portion of the pumping part contacts the oil in the normal state and the remainder of the pumping part does not contact the oil in the normal state.
A spindle motor, comprising:
- a hub rotating together with a shaft;
- a sleeve supporting rotation of the shaft via oil;
- and
- a pumping part formed in at least one of the sleeve and the hub to pump the oil leaked outside of an interface of the oil in a normal state in a direction toward the interface of the oil in the normal state,
- wherein the pumping part does not contact the oil in the normal state.
Dependencies are inferred from the claim text.