公开(公告)号：US20080278911A1

公开(公告)日：2008-11-13

申请号：US11798193

申请日：2007-05-11

申请人： Wen-Pin Chen ,  Sheng-Pin Su ,  Zhen-Yu Lee ,  Meng-Jia Tsai ,  Mei-Lin Lai

发明人： Wen-Pin Chen ,  Sheng-Pin Su ,  Zhen-Yu Lee ,  Meng-Jia Tsai ,  Mei-Lin Lai

IPC分类号： B23P17/00

CPC分类号： F04D29/057 ,  F04D25/062 ,  F04D25/0626 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107

摘要： A cooling fan and dynamic pressure bearing structure is disclosed. The cooling fan includes a base portion, a bearing portion, a dynamic pressure bearing, a coil assembly, and an impeller assembly. The dynamic pressure bearing is received in the bearing portion. A plurality of pressure collecting grooves is arranged in an inner surface of a shaft hole of the dynamic pressure bearing at intervals for receiving lubricating oil. Each pressure collecting groove has two slanted grooves extending slantways which connect with each other at one end to form a connecting point. A transverse groove extends from the connecting point backward the direction of the two slanted grooves. Based on the special design of the pressure collecting groove, the present invention increases the area that creates pressure to increase the intensity of the pressure and decrease the number of pressure collecting grooves to reduce processing loads and production costs.

摘要翻译： 公开了一种冷却风扇和动压轴承结构。 冷却风扇包括基座部分，轴承部分，动压轴承，线圈组件和叶轮组件。 动压轴承容纳在轴承部分。 多个压力收集槽设置在动压轴承的轴孔的内表面中，以间隔接收润滑油。 每个压力收集槽具有两个倾斜槽，该倾斜槽在一端彼此连接以形成连接点。 横向槽从连接点向后延伸到两个倾斜槽的方向。 基于压力收集槽的特殊设计，本发明增加了产生压力以增加压力强度并减少压力收集槽的数量以减少加工负载和生产成本的面积。