CN101676994B - 具有在整体导电嵌套件内的磁盘驱动器和桥式控制器pcb的信息存储装置 - Google Patents

具有在整体导电嵌套件内的磁盘驱动器和桥式控制器pcb的信息存储装置 Download PDF

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CN101676994B
CN101676994B CN200910173134.2A CN200910173134A CN101676994B CN 101676994 B CN101676994 B CN 101676994B CN 200910173134 A CN200910173134 A CN 200910173134A CN 101676994 B CN101676994 B CN 101676994B
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W·斯泽尔摩特
B·S·尼黑
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Western Digital Technologies Inc
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    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/12—Disposition of constructional parts in the apparatus, e.g. of power supply, of modules
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    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
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Abstract

一种信息存储装置包括磁盘驱动器和具有磁盘驱动器接口连接器的磁盘驱动器控制器印制电路板(PCB)。桥式控制器PCB连接到磁盘驱动器接口连接器，并且包括主接口连接器。整体构造的导电嵌套体接收磁盘驱动器外壳和桥式控制器PCB。导电嵌套体包括封闭部分，该封闭部分封闭具有接触主接口连接器的导电接地突起的桥式控制器PCB。封闭部分包括第一组多个导电指状物，每个导电指状物接触磁盘驱动器外壳。导电嵌套体还包括延伸屏蔽部分，该延伸屏蔽部分与磁盘驱动器基座的第二侧面相邻并覆盖磁盘驱动器控制器PCB。延伸屏蔽部分包括第二组多个导电指状物，每个导电指状物接触磁盘驱动器外壳。

Description

具有在整体导电嵌套件内的磁盘驱动器和桥式控制器PCB的信息存储装置
技术领域
本发明一般地涉及信息存储装置领域，并且更特别地涉及用于信息存储装置的安装系统和外壳。
背景技术
信息存储装置用于获取和/或存储计算机系统和其他消费类电子产品的数据。磁性硬盘驱动器是信息存储装置的一个示例。包括磁性硬盘驱动器的许多信息存储装置对其外部环境很敏感，包括机械震动、外部施加的力和电磁场、污染、温度和/或湿度的改变等。因此，信息存储装置的外壳和安装系统可能影响其性能、可靠性和寿命。
许多信息存储装置被收纳在用其获取和/或存储数据的系统内。例如，所谓的“内部”磁盘驱动器被收纳在用其存储数据的主机系统内，并且因此内部磁盘驱动器可以利用主机系统的电源、电磁屏蔽、对流降温和/或传导冷却、振动衰减、对外部机械震动的一定程度的隔离等。
其他信息存储装置不被收纳到用其获取和/或存储数据的系统内。例如，所谓的“外部”硬盘驱动器包括其自身的外壳，该外壳可以提供电磁屏蔽、振动衰减、对外部机械震动的一定程度的隔离以及有源或无源冷却。
用于现代信息存储装置的安装系统和外壳必定经常遇到挑战性的空间和成本要求。因此，本领域目前需要用于信息存储装置的改进的安装系统和外壳。
发明内容
公开和要求保护一种新颖的信息存储装置。所述信息存储装置包括磁盘驱动器，该磁盘驱动器包括主轴、附连到主轴的磁盘以及磁盘驱动器外壳。磁盘驱动器外壳包括具有第一侧面和相对的第二侧面的磁盘驱动器基座。主轴被附连到磁盘驱动器基座，并且磁盘驱动器盖被附连到磁盘驱动器基座的第一侧面以封闭主轴和磁盘。磁盘驱动器控制器印制电路板(PCB)被附连到磁盘驱动器基座并且被置于邻近磁盘驱动器基座的第二侧面。磁盘驱动器PCB包括磁盘驱动器接口连接器。桥式控制器PCB连接到磁盘驱动器接口连接器并且包括主接口连接器。导电嵌套体适于接收磁盘驱动器外壳和桥式控制器PCB。导电嵌套体包括封闭桥式控制器PCB的封闭部分，并且包括接触主接口连接器的导电接地突起(tab)。封闭部分还包括第一组多个导电指状物，每个导电指状物接触磁盘驱动器外壳。导电嵌套体还包括与磁盘驱动器基座的第二侧面相邻并且覆盖磁盘驱动器控制器PCB的延伸屏蔽部分。延伸屏蔽部分包括第二组多个导电指状物，每个导电指状物接触磁盘驱动器外壳。导电嵌套体由单个弯曲整体且连续的金属板组成，而非由子组件的组装件组成。
附图说明
图1是现代硬盘驱动器的顶视图，其外壳的顶盖被移除以便可以看见各种内部组件。
图2是根据本发明的示例性实施例的信息存储装置的磁盘驱动器和桥式控制器印制电路板的透视图。
图3A是根据本发明示例性实施例的导电嵌套体的顶部透视图。
图3B是图3A中的导电嵌套体的底部透视图。
图4A是根据本发明示例性实施例的导电嵌套体内的磁盘驱动器和桥式控制器印制电路板的顶部透视图。
图4B是图4A中的信息存储装置组件的顶视图。
图4C是相对于图4A和4B中的导电嵌套体机械地偏置磁盘驱动器的夹持物的侧横截面图。
图5是根据本发明的示例性实施例的信息存储装置的底部透视图。
图6A是根据本发明的实施例的信息存储装置的顶部透视图，其中外盖被去除。
图6B描述了图6A中的信息存储装置，其具有在适当位置的外盖。
具体实施方式
图1是现代硬盘驱动器100的顶视图，其外壳的顶盖被移除以便可以看见各种内部组件，并且当描述本发明的特定方面时可以在本文中便于参考。例如，磁盘驱动器100包括主轴104和附连到主轴104的磁盘102。磁盘驱动器100还包括磁头万向架组件(HGA)108，该磁头万向架组件通过致动器106定位在磁盘102上方。致动器106绕枢轴承112旋转以响应由线圈114产生的变化磁场。斜坡116可以用于控制HGA 108转换到磁盘102上方的工作位置。经由弯曲电缆110，磁盘驱动器控制器印制电路板(PCB)便利了致动器106的控制和达到/来自HGA 108的通信。磁盘驱动器控制器PCB位于磁盘驱动器100的外壳的基板下，并且因此在这个视图上不可见。现代磁盘驱动器100可以具有多种尺寸或“形状因数(form factors)”。例如，磁盘驱动器100可以是所谓的3.5英寸形状因数的磁盘驱动器、2.5英寸形状因数的磁盘驱动器或1.8英寸形状因数的磁盘驱动器等。
图2是根据本发明的示例性实施例的信息存储装置的磁盘驱动器200和桥式控制器PCB 280的透视图。磁盘驱动器200包括附连到磁盘驱动器基座202的磁盘驱动器控制器PCB，但是磁盘驱动器控制器PCB在图2中不可见，因为其被放置在邻近磁盘驱动器基座202的下侧(即与磁盘驱动器盖204相对的一侧)，如本视图中显示的。因此，面对和接触磁盘驱动器盖204的磁盘驱动器基座202的侧面可被称为磁盘驱动器基座202的“第一侧面”，并且如图2所示的磁盘驱动器基座202的下侧可以被称为磁盘驱动器基座202的“第二侧面”。注意，在图2的实施例中，磁盘驱动器盖204包括可选的常规约束的层挡板(damper)205。
磁盘驱动器控制器PCB可以包括磁盘驱动器控制器电路，用以控制主轴电机在磁盘驱动器200内的旋转和致动器在磁盘驱动器200内的运动。如图2所示，磁盘驱动器控制器PCB包括磁盘驱动器接口连接器206，并且桥式控制器PCB 280连接到磁盘驱动器接口连接器206。在图2的实施例中，桥式控制器PCB 280可选地仅由其与磁盘驱动器接口连接器206的连接来支撑，从而简化了机械设计(以便增强可制造性并降低成本)。例如，磁盘驱动器接口连接器206可以是串行高级技术附件(SATA)适应性连接器或并行高级技术附件(PATA)适应性连接器。
例如，桥式控制器PCB 280可以使能信息存储装置传输到/来自分离的计算机系统的数据。桥式控制器PCB 280包括主接口连接器282，该主接口连接器可以是如图2的实施例中所示的IEEE 1394适应性连接器、增强的串行高级技术附件(SATA)适应性连接器或通用串行总线(USB)适应性连接器。桥式控制器PCB 280可以是例如SATA适应性控制器PCB，其包括用于控制SATA适应性接口的电路。
在图2中的实施例中，三个夹持物270、272、274被显示为临时处于磁盘驱动器200的拐角附近。然而，这种描述仅是显示夹持物在之后装配完整信息存储装置时将被放置在何处和/或显示夹持物在装配信息存储装置的中间步骤中如何被磁盘驱动器200承载。例如，如果夹持物由弹性体材料制造，则将夹持物270、272、274临时定位在磁盘驱动器200的拐角附近可以在信息存储装置的装配期间提供增强的机械震动鲁棒性。类似于夹持物270、272、274的夹持物的使用和定位在之后的图4A-C和图5中描述，并且参考这些附图进行说明。
图3A是根据本发明示例性实施例的导电嵌套体300的顶部透视图。图3B是导电嵌套体300的底部透视图。注意，在图3A和3B的实施例中，导电嵌套体300由单个弯曲整体且连续的金属板组成，而不是由子组件的组装件组成，这可以增强屏蔽性能并且还可以在制造期间降低成本和零件数。例如，导电嵌套体300可以由服从成本考虑的冷轧钢制造，或者可替换地由服从一定性能考虑(例如腐蚀度)的不锈钢制造。用于信息存储装置的板状金属的厚度优选但不是必须在0.1mm至0.5mm的范围内，所述信息存储装置包括2.5英寸形状因数的磁盘驱动器。在特定实施例中，板状金属可以例如以锡、镍和/或锌制板。
图3A和3B的导电嵌套体300适于接收例如图2所示的磁盘驱动器200和桥式控制器PCB 280。具体地，导电嵌套体300包括适于封闭桥式控制器PCB 280的封闭部分310。导电嵌套体300还包括导电接地突起312，该突起适于接触主接口连接器如图2中的主接口连接器282。封闭部分310还包括第一组多个导电指状物340、342、344、346，每个指状物适于接触磁盘驱动器外壳(例如磁盘驱动器200的外壳的顶盖204)。第一组多个导电指状物340、342、344、346中的每个指状物均包括接触磁盘驱动器外壳的位置，该位置优选为距第一组多个导电指状物中相邻的一个指状物不超过10mm。这种间隔限制可以增强封闭部分310的性能从而屏蔽高频电磁噪声，例如高达1.5GHz的电磁噪声。
在图3A和3B的实施例中，导电嵌套体300还包括延伸屏蔽部分320，该延伸屏蔽部分适于设置为邻近磁盘驱动器基座(例如邻近图2中的磁盘驱动器基座202的下侧)并且适于至少部分覆盖磁盘驱动器控制器PCB。优选地，延伸屏蔽部分320适于覆盖磁盘驱动器控制器PCB从而基本屏蔽磁盘驱动器控制器PCB放射的过量电磁噪声。在这种情况下，覆盖不要求或不暗示关于重力方向的相对位置。相反，延伸屏蔽部分320适于覆盖磁盘驱动器控制器PCB仅意味着至少磁盘驱动器控制器PCB的一部分被置于延伸屏蔽部分320和磁盘驱动器基座(例如图2的磁盘驱动器基座202的下侧)之间。
在图3A和3B的实施例中，延伸屏蔽部分320包括第二组多个导电指状物(例如330、332、334、336、338和/或350、352、354、356、358)，每个指状物适于接触磁盘驱动器外壳(例如磁盘驱动器200的外壳的磁盘驱动器基座202)。第二组多个导电指状物330、332、334、336、338和/或350、352、354、356、358中的每个指状物均包括接触磁盘驱动器外壳的位置，该位置优选为距第二组多个导电指状物中相邻的一个指状物不超过10mm。这种间隔限制可以增强延伸屏蔽部分320的性能从而屏蔽高频电磁噪声，例如高达1.5GHz的电磁噪声。
同样如图3A和3B所示，延伸屏蔽部分320可选但优选地还包括多个导电基座接触区域360、362、364、366，每个导电基座接触区域适于接触磁盘驱动器基座(例如图2中的磁盘驱动器基座202)。如图3A和3B所示，导电基座接触区域360、362、364、366可以包括矩形区域，其优选地自延伸屏蔽部分320略向内凸出。然而，尽管考虑到制造容差，这种凸出可以有利于与磁盘驱动器基座的稳定电耦合，但这种区域不是必须为矩形形状并且不是必须自延伸的屏蔽部分320凸出。
优选但不必要地，导电嵌套体300包括介电材料层(例如聚脂薄膜)，该介电材料层适于被设置在磁盘驱动器控制器PCB(例如图2中所示的桥式控制器PCB 280)和延伸屏蔽部分320之间。该介电材料层不能在图3A中分辨出，因为它是延伸屏蔽部分320上的均匀层(除了不存在于导电基座接触区域360、362、364、366的区域中以外)。介电材料层不能在图3B中分辨出，因为其位于延伸屏蔽部分320的相对侧上。如果延伸屏蔽部分320包括多个导电基座接触区域(例如导电基座接触区域360、362、364、366)，则介电材料层优选为不存在于导电基座接触区域的位置，从而使在多个导电基座接触区域中的每个区域(例如导电基座接触区域360、362、364、366)和磁盘驱动器基座(例如磁盘驱动器200的外壳的磁盘驱动器基座202)之间不存在介电材料层。这种介电材料层设计可以有助于磁盘驱动器控制器PCB的暴露的电组件的电绝缘，同时允许延伸屏蔽部分320和磁盘驱动器基座之间的足够的电传导。
图4A是根据本发明示例性实施例的导电嵌套体内的磁盘驱动器400和桥式控制器印制电路板的顶部透视图。图4B是图4A中的信息存储装置组件的顶视图。图4C是相对于图4A和4B中的导电嵌套体机械地偏置磁盘驱动器400的夹持物476的侧横截面图。在图4A、4B和4C的实施例中，导电嵌套体由单个弯曲整体且连续的金属板而非子组件的组装件组成。这可以增强屏蔽性能并且还可以在制造期间降低成本和零件数。
图4A、4B和4C的导电嵌套体的封闭部分410已接收桥式控制器印制电路板，该桥式控制器印制电路板连接到磁盘驱动器400的磁盘驱动器控制器PCB的磁盘驱动器接口连接器。封闭部分410包括接触被封闭的桥式控制器印制电路板的主接口连接器482的导电接地突起412。封闭部分410还包括第一组多个导电指状物440、442、444，每个导电指状物接触磁盘驱动器400的外壳的顶盖404。注意，在图4A、4B和4C的实施例中，磁盘驱动器盖404包括可选的常规约束的层挡板405。第一组多个导电指状物440、442、444中的每个导电指状物包括接触磁盘驱动器外壳的位置，该位置优选为距第一组多个导电指状物中相邻的一个指状物不超过10mm。这种间隔限制可以增强封闭部分410的性能从而屏蔽高频电磁噪声，例如高达1.5GHz的电磁噪声。
在图4A、4B和4C的实施例中，延伸屏蔽部分420邻近磁盘驱动器400的外壳的基座402，并且覆盖磁盘驱动器控制器PCB。延伸屏蔽部分420包括第二组多个导电指状物430、432、434，每个导电指状物接触磁盘驱动器400的外壳的基座402。第二组多个导电指状物430、432、434中的每个导电指状物包括接触磁盘驱动器外壳的位置，该位置优选为距第二组多个导电指状物中相邻的一个指状物不超过10mm。这种间隔限制可以增强延伸的屏蔽部分420的性能从而屏蔽高频电磁噪声，例如高达1.5GHz的电磁噪声。
在图4A、4B和4C的实施例中，多个夹持物472、474和476向着导电嵌套体的延伸屏蔽部分420机械地偏置磁盘驱动器400，反之亦然。例如，夹持物472、474和476可以机械地偏置延伸屏蔽部分420的多个导电基座接触区域以使其接触磁盘驱动器400的基座402的下侧。每个夹持物472、474和476均接触磁盘驱动器顶盖404和导电嵌套体的延伸屏蔽部分420。如果夹持物包括弹性体材料，则其可以用于三重目的：(1)提供对外部施加的机械震动的一些隔离、衰减和/或减幅，以及(2)在装配期间容纳部件之间的空间变化，以及(3)前述的机械偏置。为了装配期间可靠和可重复的定位，并且在弹性夹持物的情况下增强上述性能，多个夹持物472、474和476中的每个夹持物均可以包括凸出物(例如夹持物476的凸出物477)，该凸出物延伸进入图4C所示的磁盘驱动器基座402中的孔。
图5是根据本发明的示例性实施例的信息存储装置500的底部透视图，该信息存储装置500包括导电嵌套体内的磁盘驱动器和桥式控制器印制电路板。图5中的导电嵌套体包括封闭部分510和延伸屏蔽部分520。在图5中的实施例中，多个夹持物570、572、574和576向着封闭磁盘驱动器的基座机械地偏置导电嵌套体的延伸屏蔽部分420。如果夹持物包括弹性体材料，则其可以用于三重目的：(1)提供对外部施加的机械震动的一些隔离、衰减和/或减幅，以及(2)在装配期间容纳部件之间的空间变化，以及(3)前述的机械偏置。
图6A是根据本发明的实施例的信息存储装置600的顶部透视图，其中外盖被去除。磁盘驱动器、桥式控制器PCB和导电嵌套体的组装件690进一步封闭在外部外壳692中。外部外壳692优选但不必须由塑料制造，并且优选具有开口，通过该开口，主接口连接器682可以方便进出。图6B描述了图6A中的信息存储装置600，其具有在适当位置的外盖694。外盖694优选为由与外部外壳692相同的塑料材料制造。
在前述说明书中，本发明参考具体示例性实施例加以说明，但本领域技术人员将意识到本发明不限于这些。可以预期的是本发明的各种特征和方面可以独立地或相结合并可行地使用在不同的环境或应用中。因此，说明书和附图被视为说明性和示例性的而非限制性的。“包括”、“包含”和“具有”意为开放性术语。

Claims (14)

1.一种信息存储装置，包括：
磁盘驱动器，该磁盘驱动器包括：
主轴；
附连到所述主轴的磁盘；
磁盘驱动器外壳，该磁盘驱动器外壳包括具有第一侧面和相对的第二侧面的磁盘驱动器基座，所述主轴被附连到所述磁盘驱动器基座，并且磁盘驱动器盖被附连到所述磁盘驱动器基座的所述第一侧面以封闭所述主轴和所述磁盘；以及
磁盘驱动器控制器印制电路板，其附连到所述磁盘驱动器基座并且被设置为邻近所述磁盘驱动器基座的所述第二侧面，所述磁盘驱动器印制电路板包括磁盘驱动器接口连接器；
桥式控制器印制电路板，其连接到所述磁盘驱动器接口连接器，所述桥式控制器印制电路板包括主接口连接器；以及
导电嵌套体，其适于接收所述磁盘驱动器外壳和所述桥式控制器印制电路板，所述导电嵌套体包括：
封闭部分，其封闭所述桥式控制器印制电路板，并且包括接触所述主接口连接器的导电接地突起，所述封闭部分还包括第一组多个导电指状物，每个所述第一组多个导电指状物接触所述磁盘驱动器外壳；以及
延伸屏蔽部分，其与所述磁盘驱动器基座的所述第二侧面相邻并且覆盖所述磁盘驱动器控制器印制电路板，所述延伸屏蔽部分包括第二组多个导电指状物，每个所述第二组多个导电指状物接触所述磁盘驱动器外壳；
其中所述导电嵌套体由单个弯曲整体且连续的金属板而非子组件的组装件组成。
2.根据权利要求1所述的信息存储装置，其中所述延伸屏蔽部分进一步包括多个导电基座接触区域，每个所述导电基座接触区域接触所述磁盘驱动器基座的所述第二侧面。
3.根据权利要求2所述的信息存储装置，该信息存储装置进一步包括多个夹持物，每个所述夹持物接触所述磁盘驱动器盖和所述导电嵌套体的所述延伸屏蔽部分，从而机械地偏置所述磁盘驱动器基座的所述第二侧面以使得该第二侧面接触所述导电基座接触区域。
4.根据权利要求3所述的信息存储装置，其中所述夹持物包括弹性体材料。
5.根据权利要求3所述的信息存储装置，其中所述多个夹持物中的每个夹持物包括延伸进入所述磁盘驱动器基座中的孔中的凸出物。
6.根据权利要求2所述的信息存储装置，该信息存储装置进一步包括设置在所述磁盘驱动器控制器印制电路板和所述延伸屏蔽部分之间的介电材料层，并且其中所述介电材料层不存在于每个所述多个导电基座接触区域和所述磁盘驱动器基座的所述第二侧面之间。
7.根据权利要求6所述的信息存储装置，其中所述介电材料层包括聚脂薄膜。
8.根据权利要求1所述的信息存储装置，其中所述第一组多个导电指状物中的每个导电指状物包括接触所述磁盘驱动器外壳的位置，该位置与所述第一组多个导电指状物中相邻的一个导电指状物相距不大于10mm。
9.根据权利要求1所述的信息存储装置，其中所述第二组多个导电指状物中的每个导电指状物包括接触所述磁盘驱动器外壳的位置，该位置与所述第二组多个导电指状物中相邻的一个导电指状物相距不大于10mm。
10.根据权利要求1所述的信息存储装置，其中所述磁盘驱动器接口连接器是串行高级技术附件即SATA适应性连接器。
11.根据权利要求1所述的信息存储装置，其中所述主接口连接器是通用串行总线即USB适应性连接器。
12.根据权利要求1所述的信息存储装置，其中所述主接口连接器是IEEE 1394适应性连接器。
13.根据权利要求1所述的信息存储装置，其中所述磁盘驱动器是2.5英寸形状因数的磁盘驱动器，并且其中所述金属板具有在0.1mm-0.5mm范围内的厚度。
14.根据权利要求1所述的信息存储装置，其中所述金属板以从包括锡、镍和锌的组中选择的金属制板。
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