公开(公告)号：US10375853B2

公开(公告)日：2019-08-06

申请号：US15682291

申请日：2017-08-21

Applicant: Apple Inc.

Inventor： Anthony J. Aiello ,  Jonathan L. Berk ,  Karen Cheng ,  Jesse T. Dybenko ,  Trevor Edmonds ,  Kwonil D. Fleischman ,  Richard A. Herms ,  Eric A. Knopf ,  Arash Naghib Lahouti ,  Brad L. Patton

IPC: H05K7/20 ,  G06F1/20 ,  G06F1/16 ,  H01L23/467 ,  H01L23/40 ,  F04D17/16 ,  F04D25/06 ,  F04D29/44

Abstract: In an exemplary electronic device with a cooling fan, a fan assembly is attached to a keyboard assembly of the electronic device. The fan assembly includes an impeller at least partially inside a fan enclosure. The fan enclosure has, on a surface, an inlet opening and an external protrusion. The electronic device further includes a bottom case. The fan assembly is positioned between the keyboard assembly and the bottom case and oriented such that the inlet opening and the external protrusion face the bottom case. The external protrusion maintains a passage between the fan enclosure and the bottom case that allows air to enter the inlet opening and also resists interference between the rotating impeller and the stationary bottom case.

公开(公告)号：US10718339B2

公开(公告)日：2020-07-21

申请号：US15183664

申请日：2016-06-15

Applicant: Apple Inc.

Inventor： Brad L. Patton ,  Anthony J. Aiello ,  Jesse T. Dybenko

IPC: F04D25/06 ,  F04D17/10 ,  G06F1/20

Abstract: Electronic devices have peripheral drive centrifugal fans having smaller hubs and increased air flows to manage heat levels within the electronic device. A peripheral drive centrifugal fan includes a fan housing, an impeller including a plurality of blades, and a plurality of stacked inductor groups radially disposed about the impeller. Some of the blades have magnetically active portions. Each stacked inductor group includes first and second coils configured to impart a variable magnetic force to the magnetically active portion of a blade to drive the impeller along a rotational direction. The first and second coils can be selectively energizable independently from each other to provide greater control of the impeller.

公开(公告)号：US11339793B2

公开(公告)日：2022-05-24

申请号：US16452074

申请日：2019-06-25

Applicant: Apple Inc.

Inventor： Anthony J. Aiello ,  Cheng P. Tan ,  Jesse T. Dybenko ,  Arash Naghib Lahouti ,  Eric R. Prather ,  Philippe P. Herrou ,  Ashkan Rasouli ,  Brett W. Degner ,  Michael E. LeClerc

IPC: F04D27/02 ,  F04D29/40 ,  F04D1/10 ,  F04D29/32

Abstract: Systems and methods are provided for mitigating recirculation of backflow fluid through a fan. The fan includes a housing having a channel that extends from an inlet to an outlet of the housing. A rotor assembly is positioned within the channel and is configured to direct a fluid flow from the inlet to the outlet. The rotor assembly includes a hub, a plurality of fan blades, and a shroud disposed about a circumference of the fan blades, where a radial gap extends between the shroud and the housing. The radial gap is configured to receive a portion of the fluid flow from the outlet as backflow fluid. The rotor assembly also includes an inlet flange that is configured receive the backflow fluid from the radial gap and to direct the backflow fluid in a direction away from the inlet prior to discharge of the backflow fluid from the radial gap.