公开(公告)号：US20120113590A1

公开(公告)日：2012-05-10

申请号：US13293946

申请日：2011-11-10

申请人： Matthew Schwiebert ,  Ron Goldman ,  Kenneth Honer ,  Guilian Gao ,  Yan Zhang ,  Nels Jewell-Larsen

发明人： Matthew Schwiebert ,  Ron Goldman ,  Kenneth Honer ,  Guilian Gao ,  Yan Zhang ,  Nels Jewell-Larsen

IPC分类号： H05K7/20 ,  F28F13/00

CPC分类号： H05K7/20163 ,  H05K7/20172

摘要： An electronic system including an enclosure and an internal air plenum within the enclosure. At least one component of the electronic system within the enclosure evolves heat and has a surface exposed to the internal air plenum. The enclosure has inlet and outlet ventilation boundaries together with an EHD air mover disposed therein to motivate airflow along a flow path between the inlet and outlet ventilation boundaries, wherein the flow path is substantially excluded from the internal air plenum by a barrier.

摘要翻译： 包括外壳内的电子系统和内部空气增压室。 外壳内的电子系统的至少一个部件散发热量并具有暴露于内部空气增压室的表面。 外壳具有入口和出口通风边界以及设置在其中的EHD空气移动器，以沿着入口和出口通风边界之间的流动路径激发气流，其中流动路径基本上被隔离物从内部空气增压室排除。

公开(公告)号：US20110149252A1

公开(公告)日：2011-06-23

申请号：US12643649

申请日：2009-12-21

申请人： Matthew Keith Schwiebert ,  Nels Jewell-Larsen ,  Hongyu Ran ,  Kenneth A. Honer ,  Piyush Savalia ,  Yan Zhang ,  Ron Goldman

发明人： Matthew Keith Schwiebert ,  Nels Jewell-Larsen ,  Hongyu Ran ,  Kenneth A. Honer ,  Piyush Savalia ,  Yan Zhang ,  Ron Goldman

IPC分类号： H01T23/00 ,  G03B21/16

CPC分类号： G06F1/20 ,  H05K7/20136

摘要： Structures for reducing the effect of charged surfaces near the electrodes on the performance efficiency of an electrohydrodynamic (EHD) device are disclosed. The potential levels on surfaces of an electronic device near the EHD electrodes are varied with respect to a function of the combination of distance from the emitter and the distance from the collector. The potential levels may be constant, may vary in discrete steps, may be continuously variable along the length between the EHD electrodes and beyond the electrodes, and may vary with respect to time.

摘要翻译： 公开了用于降低电极附近的带电表面对电动力学（EHD）器件的性能效率的影响的结构。 EHD电极附近的电子设备的表面上的电位相对于距离发射器的距离和与集电极的距离的组合的函数而变化。 电位电平可以是恒定的，可以在离散步骤中变化，可以沿着EHD电极之间的长度和电极之间的长度连续地变化，并且可以相对于时间而变化。

公开(公告)号：US20100116464A1

公开(公告)日：2010-05-13

申请号：US12615909

申请日：2009-11-10

申请人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

发明人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

IPC分类号： F28F13/00 ,  H01J27/00 ,  F28F13/16

CPC分类号： H02N11/006 ,  F04B19/006 ,  F28F2250/08 ,  G06F1/203

摘要： Reversible flow may be provided in certain EHD device configurations that selectively energize corona discharge electrodes arranged to motivate flows in generally opposing directions. In some embodiments, a first set of one or more corona discharge electrodes is positioned, relative to a first array of collector electrode surfaces, to when energized, motivate flow in a first direction, while second set of one or more corona discharge electrodes is positioned, relative to a second array of collector electrode surfaces, to when energized, motivate flow in a second direction that opposes the first. In some embodiments, the first and second arrays of collector electrode surfaces are opposing surfaces of individual collector electrodes. In some embodiments, the first and second arrays of collector electrode surfaces are opposing surfaces of respective collector electrodes.

摘要翻译： 可以在某些EHD器件配置中提供可逆流动，其选择性地激励布置成在大致相反的方向上激励流动的电晕放电电极。 在一些实施例中，相对于集电极表面的第一阵列，第一组一个或多个电晕放电电极被定位成当被激励时，在第一方向上激励流动，同时定位第二组一个或多个电晕放电电极 相对于集电极表面的第二阵列，当被激励时，在与第一方向相反的第二方向上激励流动。 在一些实施例中，集电极表面的第一和第二阵列是各个集电极的相对表面。 在一些实施例中，集电极表面的第一和第二阵列是各个集电极的相对表面。

公开(公告)号：US08411407B2

公开(公告)日：2013-04-02

申请号：US12615909

申请日：2009-11-10

申请人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

发明人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

IPC分类号： H01J27/00

CPC分类号： H02N11/006 ,  F04B19/006 ,  F28F2250/08 ,  G06F1/203

摘要： Reversible flow may be provided in certain EHD device configurations that selectively energize corona discharge electrodes arranged to motivate flows in generally opposing directions. In some embodiments, a first set of one or more corona discharge electrodes is positioned, relative to a first array of collector electrode surfaces, to when energized, motivate flow in a first direction, while second set of one or more corona discharge electrodes is positioned, relative to a second array of collector electrode surfaces, to when energized, motivate flow in a second direction that opposes the first. In some embodiments, the first and second arrays of collector electrode surfaces are opposing surfaces of individual collector electrodes. In some embodiments, the first and second arrays of collector electrode surfaces are opposing surfaces of respective collector electrodes.

摘要翻译： 可以在某些EHD器件配置中提供可逆流动，其选择性地激励布置成在大致相反的方向上激励流动的电晕放电电极。 在一些实施例中，相对于集电极表面的第一阵列，第一组一个或多个电晕放电电极被定位成当被激励时，在第一方向上激励流动，同时定位第二组一个或多个电晕放电电极 相对于集电极表面的第二阵列，当被激励时，在与第一方向相反的第二方向上激励流动。 在一些实施例中，集电极表面的第一和第二阵列是各个集电极的相对表面。 在一些实施例中，集电极表面的第一和第二阵列是各个集电极的相对表面。

公开(公告)号：US20100155025A1

公开(公告)日：2010-06-24

申请号：US12642561

申请日：2009-12-18

申请人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

发明人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

IPC分类号： F28F13/16

CPC分类号： F28F13/16 ,  F04B19/006 ,  F28F2250/08 ,  H01L23/467 ,  H01L2924/0002 ,  H01L2924/00

摘要： Embodiments of electrohydrodynamic (EHD) fluid accelerator devices utilize collector electrode structures that promote efficient fluid flow and reduce the probability of arcing by managing the strength of the electric field produced at the forward edges of the collector electrodes. In one application, the EHD devices dissipate heat generated by a thermal source in a thermal management system.

摘要翻译： 电动力学（EHD）流体加速器装置的实施例利用集电极结构，其通过管理在集电极的前沿产生的电场的强度来促进有效的流体流动并降低电弧的可能性。 在一个应用中，EHD设备耗散热管理系统中由热源产生的热量。

公开(公告)号：US08466624B2

公开(公告)日：2013-06-18

申请号：US12553688

申请日：2009-09-03

申请人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

发明人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

IPC分类号： H05B31/26

CPC分类号： F28F13/16 ,  F28D15/02 ,  F28F2250/08 ,  H02N11/006

摘要： Performance of an electrohydrodynamic fluid accelerator device may be improved and adverse events such as sparking or arcing may be reduced based, amongst other things, on electrode geometries and/or positional interrelationships of the electrodes. For example, in a class of EHD devices that employ a longitudinally elongated corona discharge electrode (often, but not necessarily, a wire), a plurality of generally planar, collector electrodes may be positioned so as to present respective leading surfaces toward the corona discharge electrode. The generally planar collector electrodes may be oriented so that their major surfaces are generally orthogonal to the longitudinal extent of the corona discharge electrode. In such EHD devices, a high intensity electric field can be established in the “gap” between the corona discharge electrode and leading surfaces of the collector electrodes.

摘要翻译： 电子流体动力学流体加速器装置的性能可以被改善，并且可以基于电极的电极几何形状和/或位置相互关系来减少不利的事件，例如火花或电弧。 例如，在采用纵向长度电晕放电电极（通常但不一定是导线）的一类EHD装置中，可以将多个大体上平面的集电极定位成使得各自的前表面朝向电晕放电 电极。 大致平面的集电极可以被定向成使得它们的主表面大致垂直于电晕放电电极的纵向延伸。 在这样的EHD装置中，可以在电晕放电电极和集电极的前表面之间的“间隙”中建立高强度电场。

公开(公告)号：US20100116460A1

公开(公告)日：2010-05-13

申请号：US12615905

申请日：2009-11-10

申请人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

发明人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

IPC分类号： F24H9/02 ,  H02K44/02 ,  F28D15/00

CPC分类号： H02N11/006 ,  F04B19/006 ,  F28F2250/08 ,  G06F1/203

摘要： In thermal management systems that employ EHD devices to motivate flow of air through an enclosure, spatial distribution of a ventilation boundary may facilitate reductions in flow resistance by reducing average transit distance for cooling air from an inlet portion of the ventilation boundary to an outlet portion. Some thermal management systems described herein distribute a ventilation boundary over opposing surfaces, adjacent surfaces or even a single surface of an enclosure while providing a short, “U” shaped, “L” shaped or generally straight through flow path. In some cases, spatial distributions of the ventilation boundary facilitate or enable enclosure geometries for which conventional fan or blower ventilation would be impractical. In some cases, provision of multiple portions of the ventilation boundary may allow the thermal management system to tolerate blockage or occlusion of a subset of the inlet and/or outlet portions and, when at least some of such portions are non-contiguous spatially-distributed, tolerance to a single cause of blockage or occlusion is enhanced.

摘要翻译： 在采用EHD装置来激励空气流过外壳的热管理系统中，通风边界的空间分布可以通过减少从通风边界的入口部分到出口部分的冷却空气的平均运输距离来促进流动阻力的降低。 本文所述的一些热管理系统在相对表面，相邻表面或甚至单个外壳的表面上分配通气边界，同时提供短的“U”形“L”形或大致直的流动路径。 在某些情况下，通风边界的空间分布有助于或实现常规风扇或鼓风机通风不切实际的外壳几何形状。 在一些情况下，提供通风边界的多个部分可以允许热管理系统容忍入口和/或出口部分的子集的阻塞或闭塞，并且当这些部分中的至少一些是不连续的空间分布 对单一阻塞或闭塞原因的耐受性得到提高。

公开(公告)号：US08624503B2

公开(公告)日：2014-01-07

申请号：US12772008

申请日：2010-04-30

申请人： Nels Jewell-Larsen ,  Yan Zhang ,  Matt Schwiebert ,  Ken Honer

发明人： Nels Jewell-Larsen ,  Yan Zhang ,  Matt Schwiebert ,  Ken Honer

IPC分类号： H01J7/24

CPC分类号： F28F13/16 ,  F28D2021/0029 ,  F28F2250/08

摘要： An electrohydrodynamic fluid accelerator includes an emitter electrode and leading surfaces of a collector electrode that are substantially exposed to ion bombardment. Heat transfer surfaces downstream of the emitter electrode along a fluid flow path include a first portion not substantially exposed to the ion bombardment that is conditioned with a first ozone reducing material. The leading surfaces of the collector electrode are not conditioned with the first ozone reducing material, but may include a different surface conditioning. The downstream heat transfer surfaces and the leading surfaces can be separately formed and joined to form the unitary structure or can be integrally formed. The electrohydrodynamic fluid accelerator can be used in a thermal management assembly of an electronic device with a heat dissipating device thermally coupled to the conditioned heat transfer surfaces.

摘要翻译： 电动力学流体加速器包括基本上暴露于离子轰击的发射电极和集电极的前表面。 沿着流体流动路径的发射电极下游的传热表面包括基本不暴露于用第一臭氧还原材料调节的离子轰击的第一部分。 集电极的前表面不用第一臭氧还原材料调节，但可包括不同的表面调节。 下游传热面和前表面可以分开地形成和接合以形成整体结构或者可以一体形成。 电动液体流体加速器可以用于具有热耦合到调节的传热表面的散热装置的电子装置的热管理组件中。

公开(公告)号：US08411435B2

公开(公告)日：2013-04-02

申请号：US12615900

申请日：2009-11-10

申请人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

发明人： Nels Jewell-Larsen ,  Kenneth A. Honer ,  Matt Schwiebert ,  Hongyu Ran ,  Piyush Savalia ,  Yan Zhang

IPC分类号： F28D15/00 ,  H05K7/20

CPC分类号： H02N11/006 ,  F04B19/006 ,  F28F2250/08 ,  G06F1/203

摘要： In thermal management systems that employ EHD devices to motivate flow of air between ventilated boundary portions of an enclosure, it can be desirable to have some heat transfer surfaces participate in electrohydrodynamic acceleration of fluid flow while providing additional heat transfer surfaces that may not. In some embodiments, both collector electrodes and additional heat transfer surfaces are thermally coupled into a heat transfer path. Collector electrodes then contribute both to flow of cooling air and to heat transfer to the air flow so motivated. The collector electrodes and additional heat transfer surfaces may be parts of a unitary, or thermally coupled, structure that is introduced into a flow path at multiple positions therealong. In some embodiments, the collector electrodes and additional heat transfer surfaces may be proximate each other along the flow path. In some embodiments, the collector electrodes and additional heat transfer surfaces may be separate structures.

摘要翻译： 在使用EHD装置来激励外壳通气边界部分之间的空气流动的热管理系统中，可能希望具有一些传热表面参与流体流动的电流动力学加速，同时提供可能不会的额外的传热表面。 在一些实施例中，收集器电极和附加传热表面都热耦合到传热路径中。 然后，收集器电极对冷却空气的流动进行贡献，并将热量传递给如此积极的气流。 集电极和附加传热表面可以是整体或热耦合的结构的部分，其被引入到沿着多个位置的流动路径中。 在一些实施例中，集电极和附加传热表面可以沿着流动路径彼此靠近。 在一些实施例中，集电极和附加传热表面可以是分离的结构。

公开(公告)号：US20110139408A1

公开(公告)日：2011-06-16

申请号：US12772008

申请日：2010-04-30

申请人： Nels Jewell-Larsen ,  Yan Zhang ,  Matt Schwiebert ,  Ken Honer

发明人： Nels Jewell-Larsen ,  Yan Zhang ,  Matt Schwiebert ,  Ken Honer

IPC分类号： F28F13/00 ,  B32B37/02

CPC分类号： F28F13/16 ,  F28D2021/0029 ,  F28F2250/08

摘要： An electrohydrodynamic fluid accelerator includes an emitter electrode and leading surfaces of a collector electrode that are substantially exposed to ion bombardment. Heat transfer surfaces downstream of the emitter electrode along a fluid flow path include a first portion not substantially exposed to the ion bombardment that is conditioned with a first ozone reducing material. The leading surfaces of the collector electrode are not conditioned with the first ozone reducing material, but may include a different surface conditioning. The downstream heat transfer surfaces and the leading surfaces can be separately formed and joined to form the unitary structure or can be integrally formed. The electrohydrodynamic fluid accelerator can be used in a thermal management assembly of an electronic device with a heat dissipating device thermally coupled to the conditioned heat transfer surfaces.

摘要翻译： 电动力学流体加速器包括基本上暴露于离子轰击的发射电极和集电极的前表面。 沿着流体流动路径的发射电极下游的传热表面包括基本不暴露于用第一臭氧还原材料调节的离子轰击的第一部分。 集电极的前表面不用第一臭氧还原材料调节，但可包括不同的表面调节。 下游传热面和前表面可以分开地形成和接合以形成整体结构或者可以一体形成。 电动液体流体加速器可以用于具有热耦合到调节的传热表面的散热装置的电子装置的热管理组件中。