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公开(公告)号：US09853580B2
公开(公告)日：2017-12-26
申请号：US14205135
申请日：2014-03-11
Applicant: Apple Inc.
Inventor： Brad Lee Patton , Anthony Joseph Aiello , Jesse T. Dybenko
CPC classification number: H02P6/20 , F04D25/0613 , H02P27/085
Abstract: A method to reduce acoustic noise in a cooling fan motor is disclosed. The method includes reducing the slew rate of a PWM (pulse width modulation) voltage waveform applied to energize a coil of the fan motor. This slew rate reduction results in lower mechanical vibrations and acoustic noise in the fan motor. In one embodiment, the slew rate reduction is performed during startup of the fan motor, when the motor is spinning slowly and there is little air flow noise. In another embodiment, the slew rate reduction is not performed during high speed operation of the fan motor, when the fan motor is spinning very fast and air flow noise masks the motor noise. In one embodiment, there is variable slew rate control depending on the speed of the fan motor.
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32.发明授权Fan performance by increasing effective blade height in a tolerance neutral manner 有权通过以公差中性的方式提高有效的刀片高度来实现风扇性能公开(公告)号：US09334867B2
公开(公告)日：2016-05-10
申请号：US13887184
申请日：2013-05-03
Applicant: Apple Inc.
Inventor： Anthony Joseph Aiello , Jesse T. Dybenko , Richard A. Herms
CPC classification number: F04D17/16 , F04D25/062 , F04D29/4226 , F04D29/441
Abstract: The described embodiments relate generally to improving performance characteristics of a low profile fan. More specifically configurations having sloped fan blade edges are disclosed. By applying a gradual slope to each of the fan blades, performance of the fan can be increased without risking contact or rubbing between the fan blades and a fan housing. In some embodiments, the sloped fan blades can be configured to prevent contact when bearings of the fan include a certain amount of tilt play.
Abstract translation: 所描述的实施例一般涉及改进低调风扇的性能特性。 更具体地，公开了具有倾斜风扇叶片边缘的构造。 通过对每个风扇叶片施加逐渐的斜坡，可以增加风扇的性能，而不会在风扇叶片和风扇壳体之间接触或摩擦的风险。 在一些实施例中，倾斜的风扇叶片可构造成防止风扇的轴承包含一定量的倾斜运动时的接触。
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Patent Agency Ranking
33.发明申请METHOD TO REDUCE ENTRANCE LOSSES TO INCREASE FAN INLET FLOW AND REDUCE ACOUSTIC NOISE 审中-公开减少入口损失以增加风扇入口流量并减少声音噪声的方法公开(公告)号：US20150260198A1
公开(公告)日：2015-09-17
申请号：US14581882
申请日：2014-12-23
Applicant: Apple Inc.
Inventor： Anthony Joseph Aiello , Jesse T. Dybenko , Richard A. Herms
Abstract: A cooling system for optimizing fan air flow performance without compromising acoustic performance is disclosed. At least three fan feature embodiments are disclosed: (1) sloped fan blades, (2) sloped impeller hubs, and (3) inlet flow guidance features. For the first embodiment, fan blades attached to an impeller disc and having leading edges that progressively curve toward a center of the impeller disc. For the second embodiment, the impeller disc is attached to and centered on an impeller hub that has a sloped hub surface that progressively curves toward the fan blades. For the third embodiment, an inlet flow guidance feature is positioned within a region surrounding a fan's inlet promoting smooth passage of air into the fan. In some embodiments, all three fan features are combined.
Abstract translation: 公开了一种用于在不影响声学性能的情况下优化风扇空气流动性能的冷却系统。 公开了至少三个风扇特征实施例：（1）倾斜的风扇叶片，（2）倾斜的叶轮毂，和（3）入口流动引导特征。 对于第一实施例，附接到叶轮盘并具有朝向叶轮盘的中心逐渐弯曲的前缘的风扇叶片。 对于第二实施例，叶轮盘被附接到叶轮毂上并且具有朝向风扇叶片逐渐弯曲的倾斜毂表面的叶轮毂。 对于第三实施例，入口流动引导特征位于围绕风扇入口的区域内，促进空气进入风扇的平滑通道。 在一些实施例中，组合所有三个风扇特征。
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公开(公告)号：US20150152883A1
公开(公告)日：2015-06-04
申请号：US14559672
申请日：2014-12-03
Applicant: Apple Inc.
Inventor： Jesse T. Dybenko , Anthony Joseph Aiello , Nicholas D. Mancini , Jay S. Nigen , Arash Naghib Lahouti
CPC classification number: F04D25/0613 , F04D29/162 , F04D29/4226
Abstract: The described embodiments relate to improving efficiency of a low-profile cooling fan. In one embodiment, an impeller of the cooling fan includes a shroud which covers a central portion of the impeller, thereby allowing a central inlet portion of the blades to have an increased fan blade height when compared to a cooling fan constrained by minimum part tolerances between the fan blades and a portion of the fan housing. In some embodiments, the impeller includes splitter blades that can improve performance of the low-profile cooling fan.
Abstract translation: 所描述的实施例涉及提高低轮廓冷却风扇的效率。 在一个实施例中，冷却风扇的叶轮包括覆盖叶轮的中心部分的护罩，从而允许叶片的中心入口部分与风扇叶片高度相比具有增加的风扇叶片高度， 风扇叶片和风扇壳体的一部分。 在一些实施例中，叶轮包括可提高低轮廓冷却风扇性能的分流叶片。
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公开(公告)号：US20140362523A1
公开(公告)日：2014-12-11
申请号：US14297582
申请日：2014-06-05
Applicant: Apple Inc.
Inventor： Brett W. Degner , Eric R. Prather , David H. Narajowski , Frank F. Liang , Jay S. Nigen , Jesse T. Dybenko , Connor R. Duke , Eugene A. Whang , Christopher J. Stringer , Joshua D. Banko , Caitlin Elizabeth Kalinowski , Jonathan L. Berk , Matthew P. Casebolt , Kevin S. Fetterman , Eric J. Weirshauser
IPC: G06F1/20
CPC classification number: G06F1/181 , G02B6/0001 , G02B6/0008 , G02B6/001 , G06F1/182 , G06F1/183 , G06F1/185 , G06F1/188 , G06F1/20 , G06F1/206 , G06F3/00 , G08B5/36 , G08B21/18 , H01L23/4093 , H05K1/0203 , H05K5/03 , H05K7/20009 , H05K7/20145 , H05K7/20154 , H05K7/20163 , H05K7/20172 , H05K7/20209 , H05K7/2039 , H05K7/2049
Abstract: The present application describes various embodiments regarding systems and methods for providing efficient heat rejection for a lightweight and durable compact computing system having a small form factor. The compact computing system can take the form of a desktop computer. The desktop computer can include a monolithic top case having an integrated support system formed therein, the integrated support system providing structural support that distributes applied loads through the top case preventing warping and bowing. A mixed flow fan is utilized to efficiently pull cooling air through the compact computing system.
Abstract translation: 本申请描述了关于用于为具有小外形尺寸的轻便且耐用的小型计算系统提供有效散热的系统和方法的各种实施例。 紧凑型计算系统可以采用台式计算机的形式。 台式计算机可以包括具有形成在其中的集成支撑系统的整体式顶壳，该集成支撑系统提供结构支撑，其通过顶壳分布施加的载荷，从而防止翘曲和弯曲。 利用混流风扇有效地将冷却空气拉过小型计算系统。
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36.发明申请FAN PERFORMANCE BY INCREASING EFFECTIVE BLADE HEIGHT IN A TOLERANCE NEUTRAL MANNER 有权通过在耐力性中性粒子中增加有效的叶片高度来获得风扇性能公开(公告)号：US20140301828A1
公开(公告)日：2014-10-09
申请号：US13887184
申请日：2013-05-03
Applicant: APPLE INC.
Inventor： Anthony Joseph Aiello , Jesse T. Dybenko , Richard A. Herms
CPC classification number: F04D17/16 , F04D25/062 , F04D29/4226 , F04D29/441
Abstract: The described embodiments relate generally to improving performance characteristics of a low profile fan. More specifically configurations having sloped fan blade edges are disclosed. By applying a gradual slope to each of the fan blades, performance of the fan can be increased without risking contact or rubbing between the fan blades and a fan housing. In some embodiments, the sloped fan blades can be configured to prevent contact when bearings of the fan include a certain amount of tilt play.
Abstract translation: 所描述的实施例一般涉及改进低调风扇的性能特性。 更具体地，公开了具有倾斜风扇叶片边缘的构造。 通过对每个风扇叶片施加逐渐的斜坡，可以增加风扇的性能，而不会在风扇叶片和风扇壳体之间接触或摩擦的风险。 在一些实施例中，倾斜的风扇叶片可构造成防止风扇的轴承包含一定量的倾斜运动时的接触。
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37.发明申请METHOD OF CONTROLLING START-UP NOISE IN BLDC (BRUSHLESS DIRECT CURRENT) FAN MOTORS 有权控制BLDC启动噪音的方法（无刷直流电流）风扇电机公开(公告)号：US20140265963A1
公开(公告)日：2014-09-18
申请号：US14205135
申请日：2014-03-11
Applicant: Apple Inc.
Inventor： Brad Lee Patton , Anthony Joseph Aiello , Jesse T. Dybenko
CPC classification number: H02P6/20 , F04D25/0613 , H02P27/085
Abstract: A method to reduce acoustic noise in a cooling fan motor is disclosed. The method includes reducing the slew rate of a PWM (pulse width modulation) voltage waveform applied to energize a coil of the fan motor. This slew rate reduction results in lower mechanical vibrations and acoustic noise in the fan motor. In one embodiment, the slew rate reduction is performed during startup of the fan motor, when the motor is spinning slowly and there is little air flow noise. In another embodiment, the slew rate reduction is not performed during high speed operation of the fan motor, when the fan motor is spinning very fast and air flow noise masks the motor noise. In one embodiment, there is variable slew rate control depending on the speed of the fan motor.
Abstract translation: 公开了一种降低冷却风扇电机中的声音噪声的方法。 该方法包括降低施加于风扇马达的线圈通电的PWM（脉冲宽度调制）电压波形的转换速率。 该压摆率降低导致风扇电机中的机械振动和声音噪声较低。 在一个实施例中，当电动机缓慢旋转并且几乎没有气流噪声时，在风扇电动机启动期间执行转换速率降低。 在另一个实施例中，当风扇马达的高速运转期间，当风扇马达转速非常快并且空气流动噪声掩盖电机噪声时，不进行压摆率降低。 在一个实施例中，根据风扇电动机的速度存在可变的转换速率控制。
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