Invention Application
- Patent Title: COMPACT CENTRIFUGAL FAN WITH HYDRODYNAMIC THRUST BEARING
- Patent Title (中): 具有水动力轴承的紧凑型离心风机
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Application No.: PCT/US2012/026197Application Date: 2012-02-22
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Publication No.: WO2012121889A1Publication Date: 2012-09-13
- Inventor: DYBENKO, Jesse, T. , TAN, Cheng, P. , DEGNER, Brett, W. , DUKE, Connor, Raymond , LIANG, Frank, F. , PHAN, Con, D. , WILSON, Thomas, W., Jr. , HENDREN, Keith, J.
- Applicant: APPLE INC. , DYBENKO, Jesse, T. , TAN, Cheng, P. , DEGNER, Brett, W. , DUKE, Connor, Raymond , LIANG, Frank, F. , PHAN, Con, D. , WILSON, Thomas, W., Jr. , HENDREN, Keith, J.
- Applicant Address: 1 Infinite Loop Cupertino, California 95014 US
- Assignee: APPLE INC.,DYBENKO, Jesse, T.,TAN, Cheng, P.,DEGNER, Brett, W.,DUKE, Connor, Raymond,LIANG, Frank, F.,PHAN, Con, D.,WILSON, Thomas, W., Jr.,HENDREN, Keith, J.
- Current Assignee: APPLE INC.,DYBENKO, Jesse, T.,TAN, Cheng, P.,DEGNER, Brett, W.,DUKE, Connor, Raymond,LIANG, Frank, F.,PHAN, Con, D.,WILSON, Thomas, W., Jr.,HENDREN, Keith, J.
- Current Assignee Address: 1 Infinite Loop Cupertino, California 95014 US
- Agency: FERRAZANO, Michael, J. et al.
- Priority: US61/449,510 20110304; US13/238,488 20110921
- Main IPC: F04D29/30
- IPC: F04D29/30 ; F04D29/051 ; F04D25/06 ; H02K5/167 ; F16C17/10 ; G06F1/20
Abstract:
A fan assembly for a computing device is disclosed. The device can include an impeller having a number of blades and a motor for turning the blades. The motor can turn the blades via a magnetic interaction between the impeller and the motor. A thrust bearing can be used to control a position of the impeller relative to the motor. In particular, the impeller can be configured to rotate around an axis and the thrust bearing can be used to control movement of the impeller in a direction aligned with the axis. In one embodiment, the impeller can be configured to generate aerodynamic forces, such as lift, and the parameters associated with the thrust bearing can be selected to counteract the aerodynamic forces so that the impeller remains within a desired positional range relative to the motor.
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