| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydrodynamic bearing structure simplifying the process of working, improving the mounting efficiency and enhancing the production efficiency. <P>SOLUTION: In the hydrodynamic bearing structure including the hydrodynamic bearing, the inner surface of the hydrodynamic bearing is formed with a plurality of dynamic pressure generating grooves along the axial direction, and each of the dynamic pressure generating grooves has a V shape in cross section and includes two hydrodynamic surfaces symmetric to each other. In the hydrodynamic bearing structure including a rotating shaft, the outer surface of the rotating shaft is formed with a plurality of dynamic pressure generating grooves along the axial direction, and each of the dynamic pressure generating grooves has a V shape in cross section and includes two hydrodynamic surfaces symmetric to each other. There is further provided a cooling fan having the structure of the hydrodynamic bearing. <P>COPYRIGHT: (C)2013,JPO&INPIT |
