CN1089915C - 屏蔽式存储卡盒 - Google Patents

屏蔽式存储卡盒 Download PDF

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CN1089915C
CN1089915C CN94103107A CN94103107A CN1089915C CN 1089915 C CN1089915 C CN 1089915C CN 94103107 A CN94103107 A CN 94103107A CN 94103107 A CN94103107 A CN 94103107A CN 1089915 C CN1089915 C CN 1089915C
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CN1103969A (zh
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R·G·西蒙斯
R·K·巴克
R·D·蔡斯莫尔
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Whitaker LLC
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0256—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms
    • H05K5/026—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms having standardized interfaces
    • H05K5/0265—Details of interchangeable modules or receptacles therefor, e.g. cartridge mechanisms having standardized interfaces of PCMCIA type
    • H05K5/0269—Card housings therefor, e.g. covers, frames, PCB
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0007—Casings

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  • Microelectronics & Electronic Packaging (AREA)
  • Credit Cards Or The Like (AREA)
  • Casings For Electric Apparatus (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

一种全屏蔽式印式印刷电路(PC)卡盒，至少卡的一端适宜在电气上与I/O式接插件相连接。盒有一个底盖构件和四个角隅支撑件，各所述支撑件有一个下凸缘部分，所述底盖构件从该下凸缘部分露出来。此外，还配德有一个通常呈矩形的上盖构件，上盖构件的周边有一个向下延伸的凸缘适宜使下凸缘部分与底盖构件在其周边相当大的一部分电接触。在装配好的情况下，盒对PC卡与I/O式接插件之间的数据信号起保护作用使其不致失真。(图1)

Description

屏蔽式存储卡盒
本发明涉及存储卡，更具体地说涉及存储卡的一种屏蔽用具。
随着复杂的计算机电传机、打印机和其它与计算机有关的电子设备的出现，计算机及其有关的设备使用的外印刷电路(PC)接口的需求量不断增加。为满足这种需求，迄今业已设计出了应用于计算机处理中装有外部存储器和数据的存储卡。目前，按个人计算机存储卡国际协会(PCMCI A，这是负责制定68脚存储卡标准的标准制定机构)的规定，存储卡有下列三种不同的类型：
a.I类存储卡，其宽度和长度与普通的信用卡一样，即54毫米×85.6毫米，但比信用卡厚，即厚度为3.3毫米(0.130英寸)。
b.II类存储卡，这是那些使用高度大得不能装入I类卡中的存储元件的公司使用的存储卡。II类存储卡的总高度和宽度也与信用卡相同，但卡基片区的卡体截面隆起，从而使整个厚度达5毫米(.195英寸)。这种卡隆起的基片区宽48毫米。
c.III类存储卡，它是由近来小形状因数(SFF)委员会发起的可在应用小型手提式计算机时使1.8英寸小形状因数磁盘机可插入存储卡接插件。III类存储卡的长度与I类II类卡都相同。但III类卡基片区的厚度为10.5毫米。此外，三类卡还要求头部接插件的导向口要有51毫米的宽度以适应其略为隆起的基片区。
存储卡通常有一个印刷电路板、一个绝缘材料制成的装印制电路板外套和起码一个接插件，一般叫做I/O接插件。该接插件设在外套的一端，用以将存储卡，特别是装在外套中的印刷电路板，与存储卡所配合的计算机设备连接起来。接插件用来提取存储在印刷电路板上的存储器内容并通过总线将数据传送到外部环境且从外部环境引入数据，外部环境通常也有一个计算机或其它电子设备。这样，数据在卡与外部环境之间的接口来回传送，从而使存储卡所配合的计算机能将这些数据有效地传输和应用。
存储卡通常是可以互换的，且可与许多不同的设备及电子元件配用。正因为存储卡是通用的，所以当运送到使用存储卡的各种计算机和电子设备且与这些计算机和电子设备连接和配用时往往会大量被滥用。鉴于按惯例存储卡是由许多叠层和/或元件胶合或粘合在一起的，因而存储卡受到挠曲应力(这一般是在卡插入电子或其它电子机类设备中或从这些设备抽出时发生的)时，个别叠层往往会松开并/或彼此分离。因此，即使使用的频度不高，迄今一般存储卡的结构也经常会松弛，从而使卡的内部构件经常对不准。这样会使存储卡出故障并降低使用存储卡的电子设备的性能。这些不希望有的后果通常还会使用存储卡的计算机系统的性能变差。
另一个不希望有的会计算机系统的性能变差的后果是由于对存储卡及与其电连接的接插件的不适当屏蔽引起的。现有技术中，存储卡的各种元件附近通常都配备有分立的屏蔽件。这种间断式的屏蔽破坏和限制了存储卡的效能，尤其是在配置有许多电子器件的环境中更是如此。尽管如此，美国专利5,005,106还是提供了一种对基片进行连续屏蔽的系统。具体地说，该专利教导了采用柔质导电外套的作法，将基片插入外套中，再把外套放入绝缘外壳中。
本发明提供一种易于装配、能连续起屏蔽作用的装置，从而避开了上述不希望有的效果或复杂的作法。从下面的说明，特别是结合附图阅读这些说明时，可以清楚了解这种装置的独特性。
本发明旨在提供一种屏蔽式存储卡盒，特别是I类和II类存储卡的卡盒，这种卡盒是将与卡框模制成一个整体的底盖与扣接到所述底盖/框的盖构件结合在一起，从而给存储卡提供了连续的屏蔽作用。卡盒有一个通常呈矩形由导电材料制成的底盖和一些与底盖在底盖的各角隅模制成一个整体的角隅支撑件，各支撑件有一个下凸缘部分作用到底盖上。与底盖搭配的是一个通常呈矩形的上盖，上盖的周边有一个向下延伸的凸缘适宜与在其周边相当大的部分与底盖电接触的下凸缘部分接合，从而提供连续屏蔽作用，使PC卡与I/O式接插件之间的数据信号不致失真。
里面用以容纳存储卡的屏蔽式存储卡盒由将存储卡覆盖住的上下屏蔽构件组成，两屏蔽构件的相互接合部分使屏蔽构件保持在一起将存储框覆盖住，从而使两屏蔽构件能彼此分离。
现在参看附图举例说明本发明的一个实施例，附图中：
图1是本发明装配好的全屏蔽式的存储卡盒的透视图；
图2是图1存储卡盒的部件分解透视图，盒中装有PC卡；
图3是沿图2的3-3线截取的剖视图；
图4是图2PC卡盒经放大了的部分纵向剖视图；
图5是图4装配好处于屏蔽位置的存储卡盒放大了的部分剖视图；
图6是通过形成上盖构件的一部分的整体接地夹截取的经放大的部分剖视图；
图7是图6装配好处于屏蔽位置的存储卡盒沿图1的7-7线截取的经放大的部分剖视图；
图8是沿图1的8-8线截取的经放大的部分剖视图；
图9是与图8类似的视图，示出了拆卸本发明的卡盒可能的一种方式。
现在参看体现出本发明最佳实施例的一些附图。图1和图2分别示出了存储卡盒10装配好的视图和部件分解图。卡盒10有一个底盖构件12和一个上盖构件16，构件12由诸如金属之类的导电材料制成，与绝缘座14模制成一个整体，构件16由诸如金属材料之类的导电材料冲压制成的，两盖构件12、16都适宜在两者之间容纳卡10，并对卡10起屏蔽作用。
如本技术领域所周知的那样，典型的存储卡可以由一个印刷电路板(PCB)或其它类型适宜存储、接收和/或传送数据的平面电路元件组成。此外，卡20可配备有起码一个本技术领域周知的接插件，配置在卡的接收腔22中，使接插件可在机械和电气上与卡20连接。
卡20最好有一个第二接插件(图中未示出)，例如沿卡的另一边28配置，供卡与应用卡的存储器和/或对存储在卡中和/或从外部环境通过腔22中的接插件收到的数据进行计算机处理操作的计算机或其它装置(图中示未出)联接之用。通常，计算机或第二接插件由两部分构成，有一个带接线柱的冰部供与象计算机之类的主设备连接，和一个卡20用的插座组件，这是本技术领域所周知的。
现在回头来看看盒10，具体地说，模制成一个整体的底盖12和框14。盒10的框有一对边轨30，轨30纵向露出的表面部分32供接收和支撑装在盒中的卡20。此外，框14还可以至少有一个横向构件34，使框在结构上形成一个整体，并对存储卡起支撑作用。
从图3-5的剖视图可以看得最清楚，底盖构件12实质上是配置在框14外的平面构件，构件的边36除外。底盖构件12制造得使其边36上形成周边台台肩部分38和向上翘的边40，边缘40与框14模制成一个整体，从而使底盖构件12与框14的相对位置固定下来。
沿边轨30设有多个彼此间隔一段距离的凹口42。稍后结合图8和9即将说明，这些凹口便于接收更换卡20时可轻易卸除盖构件6的适当工具。此外，沿其中一个所述边轨30上还有一个单独的凹口44供容纳向内拐的接地片46。接地片46的设计和作用在图6和7中显示得最清楚。
现在再回过头来看上盖构件16。盖构件16是要扣合到框14上与底盖12电接触的，其主边或纵边50的持点在于其实质上连续而内折的凸缘52。横边54是不连续的，因而一般可沿其中点装设与PC卡20接合用的接插件。但至少在横边的两端56，这些端部56还有一些向内取向的凸缘58供与框14接合之用。
存储卡20沿PC卡盒10的表面部分32放入卡盒10中之后，为便于装配卡盒10起见，应该指出的是，边轨30的表面60是斜削的(见图4-7)，因而上盖凸缘52与斜削表面60接触时，凸缘52向外拐折一直到它们达到最下边62为止，然后恢复原位与露出的台肩部分38接触(图8)。图5最清楚地显示了盒件有锁定装置，从图中可以看到，上盖的凸缘52与斜削或反翘表面60间隔一段距离，且始终处于略拐折的状态，从而确保各盖构件之间的夹紧力和电接合恒定。
上面说过，上盖构件，上盖构件16是用金属板毛坯冲压制成的，构件上配备有接地片或接地条46与凹口44对齐。接地片46的端部70有一个扁平部分，如本技术领域所周知的那样，适宜与PC卡20表面72上的接地迹线接合(图7)。
图8和9示出了如何轻易地任意将盖构件12、16分离开来。框14的边轨30设有许多凹口42。需要拆开盒10时，可将适当的刃状工具(图8和9中示出了其刃部80)在盖构件12与16之间的接触边缘62插入凹口42中。这一下使凸缘52往外挠曲，并使最外边缘62脱开，于是就不难进行拆卸了。进行这种装配时较理想的工具(在一些图中并未示出)可以是一个平面构件，在尺寸上能与底盖构件16共同扩张，具有多个伸出的柳叶刀片，从而使上述撬开的动作能施遍盒的整个周边。这样，有了这种结构，盒10就不难装配或拆卸，同时在使用过程中起有效的屏蔽作用。
本发明的好处在于，屏蔽式存储卡盒的屏蔽构件固定在一起覆盖住安置在其间的存储卡，因而这些屏蔽构件易于装配拆卸。本发明的另一个好处在于，其中一个固定到绝缘框上的屏蔽构件有一些表面部分支撑着存储卡，并在结构上形成一个整体。

Claims (6)

1.一种屏蔽式存储卡盒，供在其中容纳存储卡(20)之用，卡盒具有上下屏蔽构件(12，16)将卡(20)覆盖住，其特征在于，所述屏蔽构件(12，16)有一些相互接合的部分(14，38，50，52)供保持所述屏蔽构件在一起覆盖住存储卡从而使屏蔽构件可彼此分离开来；
其中所述相互接合的部分有一个框(14)固定到其中一个所述屏蔽构件(12，16)的台肩部分(38)上，另一个所述屏蔽构件具有纵边(50)和凸缘(52)，这些凸缘适宜与所述框接合，并在电气上与所述其中一个屏蔽构件连接。
2.如权利要求1所述的屏蔽式存储卡盒，其特征在于，所述框(14)有边轨(30)，边轨(30)有斜削的表面(60)，所述凸缘(52)即沿该表面(60)移动。
3.如权利要求2所述的屏蔽式存储卡盒，其特征在于，所述轨(30)有凹口(42)供接收拆卸屏蔽构件的拆卸工具用。
4.如权利要求1所述的屏蔽式存储卡盒，其特征在于，所述屏蔽构件(12，16)有一个接地片(46)供在电气上与存储卡上的接地迹线接合。
5.如权利要求1所述的屏蔽式存储卡盒，其特征在于，所述框(14)表面部分(32)供支撑在其中的存储卡。
6.如权利要求1或2所述的屏蔽式存储卡盒，其特征在于，存储卡连接有一个电气接插件(22)在配置屏蔽构件(12，16)之间。
CN94103107A 1993-04-06 1994-03-31 屏蔽式存储卡盒 Expired - Fee Related CN1089915C (zh)

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US08/043,316 US5339222A (en) 1993-04-06 1993-04-06 Shielded printed circuit card holder
US043,316 1993-04-06
US043316 1993-04-06

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CN1089915C true CN1089915C (zh) 2002-08-28

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EP (2) EP0619697B1 (zh)
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EP0619697A1 (en) 1994-10-12
USRE35873E (en) 1998-08-18
CN1103969A (zh) 1995-06-21
US5339222A (en) 1994-08-16
EP0821548B1 (en) 2001-01-03
DE69426537T2 (de) 2001-06-07
EP0619697B1 (en) 1998-06-24
DE69426537D1 (de) 2001-02-08
JPH06309517A (ja) 1994-11-04
DE69411218D1 (de) 1998-07-30
KR100307308B1 (ko) 2001-11-30
EP0821548A1 (en) 1998-01-28
DE69411218T2 (de) 1998-12-10
JP3167244B2 (ja) 2001-05-21

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