SPINDLE MOTOR
First Claim
1. A spindle motor, comprising:
- a rotating shaft having a thrust plate inserted perpendicularly into an upper portion of the rotating shaft;
a sleeve accommodating the rotating shaft and rotatably supporting the rotating shaft;
a plate provided such that the sleeve is secured to the plate;
an inner cap secured to the sleeve in such a way as to face an upper surface of the thrust plate, with a first fluid sealing part defined between the thrust plate and the inner cap; and
an outer cap secured to an upper portion of the inner cap, with a second fluid sealing part defined between the inner cap and the outer cap.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein is a spindle motor including a journal bearing and a thrust bearing, thus preventing the lack of fluid occurring as a result of the evaporation or scattering of fluid, and making it easy to control the injected amount of fluid. The spindle motor includes a rotating shaft having a thrust plate inserted perpendicularly into the upper portion thereof. A sleeve accommodates and rotatably supports the rotating shaft. A plate is provided such that the sleeve is secured to the plate. An inner cap is secured to the sleeve in such a way as to face the upper surface of the thrust plate, and a first fluid sealing part is defined between the thrust plate and the inner cap. An outer cap is secured to the upper portion of the inner cap, and a second fluid sealing part is defined between the inner and outer caps.
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Citations
16 Claims
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1. A spindle motor, comprising:
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a rotating shaft having a thrust plate inserted perpendicularly into an upper portion of the rotating shaft; a sleeve accommodating the rotating shaft and rotatably supporting the rotating shaft; a plate provided such that the sleeve is secured to the plate; an inner cap secured to the sleeve in such a way as to face an upper surface of the thrust plate, with a first fluid sealing part defined between the thrust plate and the inner cap; and an outer cap secured to an upper portion of the inner cap, with a second fluid sealing part defined between the inner cap and the outer cap. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification