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Fluid dynamic bearing assembly and motor having the same

一种流体动压轴承、流体动压的技术，应用在轴承元件、电动组件、滑动接触轴承等方向，能够解决加工工艺复杂、制造成本增加、加工制造时间长等问题

Inactive Publication Date: 2012-03-21
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there are problems in that the machining process is complicated, the machining manufacturing time is long and the manufacturing cost is increased

Method used

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  • Fluid dynamic bearing assembly and motor having the same
  • Fluid dynamic bearing assembly and motor having the same
  • Fluid dynamic bearing assembly and motor having the same

Examples

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Embodiment Construction

[0031] Now, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, it should be noted that the spirit of the present invention is not limited to the embodiments set forth herein, and those skilled in the art understand that by adding, modifying or removing components within the same spirit, the present invention can be easily implemented including the spirit of the present invention. existing inventions or other embodiments within, and these should be construed as being included within the spirit and scope of the present invention.

[0032] Also, throughout the drawings, the same or similar reference numerals will be used to designate the same or similar components having the same function within the scope of similar ideas.

[0033] figure 1 is a sectional view of a motor according to a first exemplary embodiment of the present invention, figure 2 yes figure 1 Partial enlarged cross-sectional view of...

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Abstract

There are provided a fluid dynamic bearing assembly and a motor having the same. The fluid dynamic bearing assembling according to the present invention may include: a sleeve formed to have a hollow into which a shaft is inserted; a sleeve housing formed to insert the sleeve therein; a bypass passage formed to axially communicate the upper portion and the lower portion of the sleeve between the sleeve and the sleeve housing dispersing pressure of a lubricating fluid in the hollow; and an oil sealing cap having an oil passage communicated with the bypass passage and taper-sealing the lubricating fluid within the oil passage.

Description

[0001] This application claims priority from Korean Patent Application No. 10-2010-0082669 filed with the Korean Intellectual Property Office on Aug. 25, 2010, the disclosure of which is incorporated herein by reference. technical field [0002] The present invention relates to a fluid dynamic bearing assembly (fluid dynamic bearing assembly) and a motor having the fluid dynamic bearing assembly, and more particularly, relates to a fluid dynamic bearing assembly capable of controlling the axial direction of the fluid dynamic bearing assembly when it is assembled. The axial play also saves the manufacturing cost of the hydrodynamic bearing assembly by simplifying the sleeve structure of the hydrodynamic bearing assembly and manufacturing the motor assembly in a mold. Background technique [0003] Generally, a small spindle motor used in a recording disk drive apparatus uses a hydrodynamic bearing assembly in which the hydrodynamic bearing assembly is closed by filling the bear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C17/10F16C33/04H02K5/16
CPCF16C17/10F16C32/0629H02K7/08F16C33/1085H02K5/1675F16C17/107F16C2370/12F16C33/745
Inventor 李他璟金永泰河昇佑
Owner SAMSUNG ELECTRO MECHANICS CO LTD
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