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公开(公告)号：US20210051823A1
公开(公告)日：2021-02-18
申请号：US16791834
申请日：2020-02-14
Applicant: Apple Inc.
Inventor： Arash NAGHIB LAHOUTI , Jesse T. DYBENKO , Anthony Joseph AIELLO
Abstract: An electronic device includes a fan assembly that draws air (including heated air) away from components and forces the air out of the electronic device. The fan assembly includes a guide vane located in the fan housing. Subsequent to air entering the fan assembly via the fan inlets, the guide vane is designed to direct the air to a fan outlet. Further, the guide vane is designed and positioned in the fan assembly to limit or prevent flow separation that may cause the heated air to recirculate and may also cause increased turbulence leading to elevated acoustic noise. Furthermore, the guide vane may include a tapered region to allow the heated air to readily flow over the guide vane to limit or prevent a vortex from occurring within the fan assembly. Using the guide vane, the fan assembly drives more air at the same fan speed and lowers noise generation.
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公开(公告)号：US20170067470A1
公开(公告)日：2017-03-09
申请号：US15183664
申请日：2016-06-15
Applicant: Apple Inc.
Inventor： Brad L. PATTON , Anthony J. AIELLO , Jesse T. DYBENKO
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.
Abstract translation: 电子设备具有外围驱动离心风扇，其具有较小的毂和增加的空气流量以管理电子设备内的热量。 外围驱动离心风扇包括风扇壳体，包括多个叶片的叶轮和围绕叶轮径向设置的多个堆叠的电感器组。 一些叶片具有磁性活性部分。 每个堆叠的电感器组包括第一和第二线圈，其被配置为向叶片的磁性活动部分施加可变的磁力，以沿着旋转方向驱动叶轮。 第一和第二线圈可以彼此独立地选择性地通电，以提供更大的叶轮控制。
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公开(公告)号：US20170002836A1
公开(公告)日：2017-01-05
申请号：US15201278
申请日：2016-07-01
Applicant: Apple Inc.
Inventor： Philippe P. HERROU , Richard A. HERMS , Jesse T. DYBENKO
Abstract: A fan includes an impeller having blades of varying chord lengths. The fan includes a fan housing surrounding the impeller. The fan housing includes a protruding region, or throat, separated from each passing blade by a clearance, or throat gap, that varies according to the chord length. During rotation of the impeller, the impeller blades rotate about a rotational axis, passing the protruding region defining a minimum radial gap to the protruding region. Due to their different chord lengths, the impeller blades pass the throat region at different throat gaps. Shorter blades are likely to have lower amplitude static pressures and lower air velocities resulting at the blade tip, and are hence likely to generate a lower amplitude acoustic pulse at the protruding region. The variety of chord lengths modulate the amplitude of the pressure to spread acoustic sound across multiple frequencies thereby reducing peak amplitude of the acoustic sound.
Abstract translation: 风扇包括具有不同弦长的叶片的叶轮。 风扇包括围绕叶轮的风扇壳体。 风扇壳体包括突出区域或喉部，其与每个通过的叶片分开，间隙或喉部间隙根据弦长度而变化。 在叶轮旋转期间，叶轮叶片围绕旋转轴线旋转，使突出区域限定出最小径向间隙到突出区域。 由于它们的弦长不同，叶轮叶片通过不同喉部间隙处的喉部区域。 更短的叶片可能具有较低的振幅静压力和较低的空气速度，导致叶片尖端，因此可能在突出区域处产生较低幅度的声脉冲。 弦长度的变化调制压力的幅度，以便在多个频率上扩展声音，从而减少声音的峰值振幅。
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公开(公告)号：US20230363123A1
公开(公告)日：2023-11-09
申请号：US18225036
申请日：2023-07-21
Applicant: Apple Inc.
Inventor： Ivan S. MARIC , Aidan N. ZIMMERMAN , Phil M. HOBSON , Jonathan C. ATLER , Arash NAGHIB LAHOUTI , Jesse T. DYBENKO
IPC: H05K7/20 , G10K11/175 , H04N5/655 , H04N23/54 , H04N23/90
CPC classification number: H05K7/20972 , G10K11/175 , H04N5/655 , H04N23/54 , H04N23/90 , G02B27/0176
Abstract: A head-mounted device can effectively manage heat while also managing noise output in a manner that reduces the user's perception thereof. For example, a support member extending across a flow channel can provide multiple sections with different profiles and/or cross-sectional dimensions within the flow channel. Each of the profiles and/or cross-sectional dimensions can generate tonal noises at different frequencies, so that the tonal noises generated are distributed across multiple frequencies to mask such tonal noises among broadband noises that are generated by the head-mounted device. Such a support member can be moveably positioned within the flow channel and rigidly coupled to other components of the head-mounted device. Such a support member can also be used to draw heat away from other components of the head-mounted device to be dissipated by the flow of air within the flow channel.
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Patent Agency Ranking
公开(公告)号：US20210095692A1
公开(公告)日：2021-04-01
申请号：US16792034
申请日：2020-02-14
Applicant: Apple Inc.
Inventor： Halil BERBEROGLU , Cheng Ping TAN , Arash NAGHIB LAHOUTI , Richard A. HERMS , Jesse T. DYBENKO , Ashkan RASOULI
Abstract: An electronic device with a fan assembly is disclosed. The fan assembly includes an impeller and an insert separated from the impeller by a gap. The fan assembly increases airflow by rotationally driving the impeller. For a sufficient rotational speed of the impeller, the airflow reaches a level that provides a force that displaces the insert. The displacement may include movement and/or compression of the insert. As a result of the displacement, the gap between the impeller and the insert increases. The increased gap reduces the pressure and associated noise that is otherwise caused by the airflow. When the rotational speed of the impeller reduces or ceases, the insert returns to its initial position. In this manner, the fan assembly includes a self-adjusting gap that changes based on the airflow.
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公开(公告)号：US20180070472A1
公开(公告)日：2018-03-08
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
CPC classification number: H05K7/20145 , F04D17/16 , F04D25/0613 , F04D29/441 , G06F1/1658 , G06F1/1662 , G06F1/20 , G06F1/203 , H01L23/4006 , H01L23/467
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.
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公开(公告)号：US20240068484A1
公开(公告)日：2024-02-29
申请号：US18225043
申请日：2023-07-21
Applicant: Apple Inc.
Inventor： Jesse T. DYBENKO , Arash NAGHIB LAHOUTI , Jason C. SAUERS , Jeffrey R. KAPPER , Sivesh SELVAKUMAR , David J. DUNSMOOR
CPC classification number: F04D29/281 , F04D29/4226 , F04D29/626 , F04D29/703
Abstract: A head-mountable device can include a fan that effectively manages heat while also mitigating the intrusion of particles and other debris. Fans can include a protrusion that creates a tortuous pathway to direct incoming particles away from sensitive regions. Fans can include openings to allow particles to exit the fan enclosure and avoid interaction with the impeller. Fans can include a variable spacing between the impeller and the base plate to avoid collection of particles. Fans can include an adhesive pad that collects and retains particles at a location that does not interfere with rotation of the impeller.
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公开(公告)号：US20220287202A1
公开(公告)日：2022-09-08
申请号：US17448700
申请日：2021-09-23
Applicant: Apple Inc.
Inventor： Anthony Joseph AIELLO , Brett W. DEGNER , Jesse T. DYBENKO , Arash NAGHIB LAHOUTI , Eric R. PRATHER
Abstract: Fan assemblies are disclosed. Fan assemblies include an impeller with asymmetric design. For example, an impeller may include a first set of blades with one geometry and second set of fan blades with another geometry. This enables a dual-inlet centrifugal fan to generate different air flow performance characteristics for the air entering one fan inlet compared to the air entering the other fan inlet. The impeller, with different fan blade configurations, can better handle air flow entering the fan assembly through different inlets, particularly when the air flow conditions differ through the inlets due to impeding structures (e.g., motor, struts, etc.). As a result, air flow distribution from air leaving the impeller, including the locations associated with the different fan blade configurations, is relatively uniform. Beneficially, when air flow distribution uniformity increases, the fan assembly operates more efficiently, as air flow pressure losses due to flow separation are mitigated.
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公开(公告)号：US20180352676A1
公开(公告)日：2018-12-06
申请号：US15994753
申请日：2018-05-31
Applicant: Apple Inc.
Inventor： Brett W. DEGNER , Eric R. PRATHER , William K. SMITH , Anthony Joseph AIELLO , Jesse T. DYBENKO , Arash NAGHIB LAHOUTI , Kristopher P. LAURENT
Abstract: A thermal management system that includes a fan assembly, a heat exchanger, and an insulating box is described. The fan assembly can have two impellers and a housing that includes two scroll portions. An internal portion of the scroll wall can be truncated. A motor housing can be connected to the fan housing via multiple struts. The struts can be oriented angularly with a tangential component and can slope inward to increase the effective inlet area. The heat exchanger can be formed of a fin stack that has a curved body that defines an airflow path that turns radially from the inlet to the exhaust. The heat exchanger can have an inlet that is smaller than the exhaust. The heat exchanger can be connected to one or more heat pipes. The insulating box can have a grid that directs air to certain specific directions.
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