CN102105844A - 泄漏电流耗散设备 - Google Patents

泄漏电流耗散设备 Download PDF

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CN102105844A
CN102105844A CN200880130503.3A CN200880130503A CN102105844A CN 102105844 A CN102105844 A CN 102105844A CN 200880130503 A CN200880130503 A CN 200880130503A CN 102105844 A CN102105844 A CN 102105844A
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leakage current
computing equipment
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current dissipation
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CN102105844B (zh
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J·A·列夫
E·W·穆尔
M·S·特雷西
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Hewlett Packard Development Co LP
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
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    • G06F1/1613Constructional details or arrangements for portable computers
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
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    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
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    • G06COMPUTING; CALCULATING OR COUNTING
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    • G06F1/1613Constructional details or arrangements for portable computers
    • G06F1/1633Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • G06F1/166Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories related to integrated arrangements for adjusting the position of the main body with respect to the supporting surface, e.g. legs for adjusting the tilt angle
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
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Abstract

在某些实施例中,计算设备包括具有下表面的外壳、和被安装到所述下表面的泄漏电流耗散设备,所述泄漏电流耗散设备被配置为将由计算设备产生的泄漏电流耗散到计算设备被支撑于其上的表面中。

Description

泄漏电流耗散设备
背景技术
如今,许多笔记本计算机具有金属外壳。由于此类外壳的导电性,由计算机的电源系统产生的泄漏电流可能到达外壳并向计算机用户放电,特别是正在用连接到壁式电源插座的未接地电源电缆对计算机供电时。在这种情况下,用户充当泄漏电流被排出到其中的计算机的接地路径。虽然此类放电对于用户而言既不危险也不痛苦,但其是能被觉察的且会使人不安。
附图说明
参考附图能够更好地理解所公开的泄漏电流耗散设备。图中的部件不一定是按比例的。
图1是具有集成泄漏电流耗散设备的计算设备的实施例的底部透视图。
图2是图1的计算设备的侧视图。
图3是图1的计算设备的底座的局部横截面侧视图,其示出泄漏电流耗散设备与计算设备的接地平面之间的电连接。
图4是图1所示的泄漏电流耗散设备的局部平面图。
图5是图1的计算设备的侧视图,其中,所述计算设备被示为停靠在支撑表面上并向所述支撑表面中耗散泄漏电流。
具体实施方式
如上所述,来自笔记本计算机的电源系统的泄漏电流可以通过计算机的外壳被排出到计算机用户身上,特别是当该外壳由诸如金属的导电材料构成时。然而,如下文所述,可以通过为计算机提供将泄漏电流耗散到另一对象中的集成泄漏电流耗散设备来减少或避免这样的放电,所述另一对象诸如计算机停靠在其上面的支撑表面。在某些实施例中,泄漏电流耗散设备被安装到笔记本计算机的底座的下表面并包括弹性部件,该弹性部件具有被耦合到计算设备的接地平面的导电外表面。
现在更详细地参考附图,在附图中相同的标号在图中自始至终指示相应的部分,图1和2示出笔记本或“膝上型”计算机形式的计算设备100。虽然已经明确地示出并标识了笔记本计算机,但应注意的是,笔记本计算机仅被作为示例引用。因此,本公开的讲授内容同样地适用于产生可以被排出到计算机用户身上的泄漏电流的其它计算设备。
如图1和2所示,计算设备100包括被相互连接的底座102和显示器104。举例来说,底座102和显示器104用铰链(未示出)枢轴地相互连接。底座102包括包围计算设备100的各种内部部件的外壳106,所述内部部件诸如处理器、存储器、硬盘驱动等。显示器102包括其自己的外壳108,该外壳108支撑显示设备(图1中不可见)。在某些实施例中,至少底座外壳106至少部分地由诸如金属的导电材料构成。举例来说,底座外壳106包括铝。
如图1和2所描绘的,底座102包括下表面110,泄漏电流耗散设备112被安装到所述下表面110。在所示的实施例中,泄漏电流耗散设备112被配置成在从底座102的较后的一侧朝向另一侧的横向上沿着下表面110延伸的修长构件(参见图1)。然而,该配置并不是必需的,并且可以有可替换的布置。
接下来参考图3,泄漏电流耗散设备112可以包括至少部分地被导电外层202包围的弹性内部构件200。在某些实施例中,内部构件200包括具有基本上平的内表面204和弯曲的外表面206的泡沫、橡胶或凝胶部件。在某些实施例中,外层202包括缠绕在内部构件200周围的柔性金属垫圈。如图4的局部视图所示,外层202可以由诸如铍铜织物的编织垫圈材料构成。
返回参考图3,泄漏电流耗散设备112还可以包括便于泄漏电流耗散设备112到底座102的安装和到诸如金属线的导电体210的安全连接的导电衬垫208,所述导电体210延伸到由外壳106限定的内部空间212中。如图3所示,导体210从泄漏电流耗散设备112(或从衬垫208)延伸到在所示的实施例中被提供在印刷电路板216上的计算设备100的接地平面214。
图5示出停靠在诸如桌面的支撑表面500上的计算设备100。如在图5中显而易见的,泄漏电流耗散设备112在计算设备100的重量下压缩,从而产生与支撑表面500接触的大的表面面积。当计算设备100正在工作时,特别是当计算设备正使用由未接地的电源电缆供应的功率工作时,产生可以到达外壳106且可以被排出到计算设备的用户身上的泄漏电流。然而,由于泄漏电流耗散设备112的存在,该电流改为通过泄漏电流耗散设备被耗散到支撑表面500中。虽然当支撑表面500高度导电时此类耗散会更快且更容易地发生,但当支撑表面相对不导电时,在泄漏电流耗散设备112与支撑表面之间的相对大的接触面积的情况下,仍发生耗散。如果需要,可以通过在泄漏电流耗散设备112下面的支撑表面500上提供导电板或衬垫来增大此类耗散的速率。
在前述公开中,泄漏电流耗散设备已被描述为包括至少部分地被导电外层包围的弹性内部构件。应注意的是,可以有替换实施例。在一个此类实施例中,泄漏电流耗散设备可以包括从计算设备的底座延伸的导电弹簧夹。

Claims (19)

1. 一种计算设备,包括: 
具有下表面的外壳;以及 
被安装到所述下表面的泄漏电流耗散设备,所述泄漏电流耗散设备被配置为将由计算设备产生的泄漏电流耗散到所述计算设备被支撑在其上的表面中。
2. 权利要求1的计算设备,其中,所述计算设备包括笔记本计算机且所述下表面是笔记本计算机的底座的下表面。
3. 权利要求1的计算设备,其中,所述外壳包括导电材料。
4. 权利要求3的计算设备,其中,所述导电材料是金属。
5. 权利要求4的计算设备,其中,所述金属是铝。
6. 权利要求1的计算设备,其中,所述泄漏电流耗散设备包括弹性内部构件。
7. 权利要求6的计算设备,其中,所述泄漏电流耗散设备还包括包围所述内部构件的导电外层。
8. 权利要求6的计算设备,其中,所述内部构件包括泡沫构件。
9. 权利要求7的计算设备,其中,所述外层包括柔性金属垫圈。
10. 权利要求9的计算设备,其中,所述柔性金属垫圈由编织材料组成。
11. 权利要求10的计算设备,其中,所述柔性金属垫圈包括铍铜织物。
12. 权利要求1的计算设备,还包括位于泄漏电流耗散设备与所述下表面之间的导电衬垫。
13. 权利要求12的计算设备,还包括将导电衬垫电耦合到计算设备的接地平面的导体。
14. 一种笔记本计算机,包括:
显示器;
连接到所述显示器的底座,所述底座包括外壳,该外壳包括导电材料,该外壳限定内部空间和下表面,接地平面被包含在内部空间;以及
被安装到所述底座外壳的下表面的泄漏电流耗散设备,所述泄漏电流耗散设备包括被导电外层包围的弹性内部构件,所述外层被电耦合到所述接地平面以使得由笔记本计算机产生的泄漏电流流到泄漏电流耗散设备以便排出到笔记本计算机被支撑于其上的表面中。
15. 权利要求14的笔记本计算机,其中,所述内部构件包括泡沫构件。
16. 权利要求15的笔记本计算机,其中,所述外层包括柔性金属垫圈。
17. 一种供笔记本计算机使用的泄漏电流耗散设备,所述泄漏电流耗散设备包括:
弹性内部构件;以及
围绕所述内部构件的柔性金属垫圈。
18. 权利要求17的耗散设备,其中,所述内部构件包括泡沫构件。
19. 权利要求18的耗散设备,其中,所述柔性金属垫圈包括编织金属垫圈。
CN200880130503.3A 2008-07-25 2008-07-25 泄漏电流耗散设备 Expired - Fee Related CN102105844B (zh)

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JP5101736B2 (ja) 2012-12-19
DE112008003928T5 (de) 2011-06-01
DE112008003928B4 (de) 2012-03-01
TW201010230A (en) 2010-03-01
GB2474144A (en) 2011-04-06
WO2010011228A1 (en) 2010-01-28
US8958204B2 (en) 2015-02-17
TWI483505B (zh) 2015-05-01
CN102105844B (zh) 2015-08-26
US20110122562A1 (en) 2011-05-26
JP2011528149A (ja) 2011-11-10
DE112008003928B8 (de) 2012-11-22
GB201020150D0 (en) 2011-01-12
BRPI0822541A2 (pt) 2015-06-23

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