HYDRODYNAMIC BEARING STRUCTURE FOR BEARING COOLING FAN AND METHOD FOR ASSEMBLING THE SAME

摘要

Disclosed are a hydrodynamic bearing structure(10) for bearing a cooling fan(3) and a method of assembling the same. The hydrodynamic bearing structure(10) comprises a housing(20), a hydrodynamic bearing(30), a rotation shaft(40), a thrust member(50) and a bottom plate(24). The hydrodynamic bearing(30) is mounted in an accommodating space(21) within the housing(20) The rotation shaft(40) is disposed through a rotation shaft hole(31) of the hydrodynamic bearing(30). The thrust member(50) is disposed on an end portion of the rotation shaft(40) and accommodated between a bottom surface of the hydrodynamic bearing(30) and a top surface of the bottom plate(24). A plurality of guiding grooves(51) are disposed in a surface of the thrust member(50), so that an oil layer applied with pressure is formed on the surface of the thrust member(50) to maintain stable rotation of the rotation shaft(40) and reduce the deflection and vibration of the fan(3) during rotation.