公开(公告)号：US6061206A

公开(公告)日：2000-05-09

申请号：US60868

申请日：1998-04-15

申请人： Gregory G. Foisy ,  Nils Eric Larson ,  Sudha Narayan ,  Ajit Fathailal Sancheti ,  John Edwards

发明人： Gregory G. Foisy ,  Nils Eric Larson ,  Sudha Narayan ,  Ajit Fathailal Sancheti ,  John Edwards

IPC分类号： G11B5/48 ,  G11B21/18 ,  G11B5/55 ,  G11B21/12

CPC分类号： G11B21/18 ,  G11B5/4806

摘要： A head stack assembly for mounting to a pivot bearing cartridge in a disk drive includes a coil having opposite electrical ends and a unitary molded plastic E-block fabricated from a first thermoplastic material containing electrically conductive filler material such that the E-block is electrically conductive. The E-block defines a generally cylindrically shaped body portion and a plurality of elongated arms, the body portion having a pivot bore for receiving the pivot bearing cartridge, a plurality of spaced-apart arm-support regions, and a surface defining a mounting site. Each arm is cantilevered from a respective one of the arm-support regions to project radially away from the pivot bore. The head stack assembly further includes an overmolded coil frame securing the coil to the body portion such that the coil is cantilevered to project radially away from the pivot bore. The overmolded coil frame is fabricated from a second thermoplastic material and is electrically non-conductive. The head stack assembly further includes a flex circuit cable having a portion secured at the mounting site, the flex circuit cable including a plurality of conductors, an electrical path from a first one of the conductors to provide ground potential to the E-block, and a pair of electrical paths from a second and a third of the conductors to the opposite electrical ends of the coil.

摘要翻译： 用于安装到盘驱动器中的枢转轴承筒的头部堆叠组件包括具有相对电端的线圈和由包含导电填充材料的第一热塑性材料制成的整体模制塑料E形块，使得E形块是导电的 。 E形块限定了大致圆柱形的本体部分和多个细长臂，主体部分具有用于接收枢转轴承筒的枢轴孔，多个间隔开的臂支撑区域，以及限定安装位置的表面 。 每个臂从相应的一个臂支撑区域悬臂以径向远离枢轴孔径突出。 头部堆叠组件还包括将线圈固定到主体部分的包覆成型的线圈框架，使得线圈被悬臂以径向远离枢转孔径突出。 包覆成型的线圈框架由第二热塑性材料制成并且是非导电的。 头部堆叠组件还包括柔性电路电缆，其具有固定在安装位置处的部分，柔性电路电缆包括多个导体，来自第一导体的电路以向E块提供接地电位，以及 从导体的第二和第三导体到线圈的相对电端的一对电路径。

公开(公告)号：US5781373A

公开(公告)日：1998-07-14

申请号：US816099

申请日：1997-03-14

申请人： Nils Eric Larson ,  Ajit Fathailal Sancheti

发明人： Nils Eric Larson ,  Ajit Fathailal Sancheti

IPC分类号： G11B33/08

CPC分类号： G11B33/08

摘要： A noise suppression system for use in a disk drive. The system isolates the interface between the disk drive cover and the moving parts of the disk drive to attenuate acoustic energy introduced by the moving parts and also dissipates some of the unwanted acoustic energy in viscoelastic damping layers. An outer plate made of a rigid layer covered with a viscoelastic damping layer is disposed over an inner cover in which is provided an open region surrounding the pivot axis of the head-stack assembly (HSA) or, alternatively, surrounding both the pivot axis and the spindle axis of the disk assembly. A rigid interface member is fixed to the pivot journal or, alternatively, to both the pivot journal and the spindle journal within the open region. The outer plate is fitted to the periphery of the inner cover so that the viscoelastic damping layer abuts a flexible sealing member fitted over the interface member and inner cover around the open region. The sealing member includes a soft metal substrate for sealing the head-disk assembly (HDA) chamber of the disk drive. The viscoelastic damping and adhesive layers are constrained between the outer plate and the sealing member to isolate the interface member from the outer plate within the open region of the inner cover. Any acoustic energy introduced into the interface member is at least partially dissipated by shear wave losses within the constrained viscoelastic layer.

摘要翻译： 用于磁盘驱动器的噪声抑制系统。 该系统隔离磁盘驱动器盖和磁盘驱动器的运动部分之间的接口，以衰减由运动部件引入的声能，并且在粘弹性阻尼层中消散一些不需要的声能。 由覆盖有粘弹性阻尼层的刚性层制成的外板设置在内盖上，内盖设置有围绕磁头 - 堆叠组件（HSA）的枢转轴线的开放区域，或者替代地围绕枢转轴线和 磁盘组件的主轴。 刚性接口构件固定到枢转轴颈，或者可选地，在开放区域内固定到枢轴轴颈和主轴轴颈。 外板安装在内盖的周边，使得粘弹性阻尼层与柔性密封件邻接，该柔性密封件安装在界面构件和围绕开口区域的内盖上。 密封构件包括用于密封盘驱动器的头盘组件（HDA）室的软金属衬底。 粘弹性阻尼和粘合剂层被限制在外板和密封件之间，以将界面构件与内盖的敞开区域内的外板隔开。 引入到界面构件中的任何声能至少部分地被约束的粘弹性层内的剪切波损耗消散。

公开(公告)号：US5862019A

公开(公告)日：1999-01-19

申请号：US672146

申请日：1996-07-27

申请人： Nils Eric Larson

发明人： Nils Eric Larson

IPC分类号： G11B5/52 ,  G11B5/50 ,  G11B21/26 ,  H02K41/00

CPC分类号： G11B5/52

摘要： A disk drive actuator assembly adapted for assembly in one of several configurations from a single line of modular components without a manually-supervised aligning step. The actuator improves manufacturability and inertia by introducing a common set of self-aligning modular piece parts. Each of several self-aligning modular components can be used to assemble any of several different actuator assembly designs. That is, a head-stack assembly (HSA) providing from one to six heads can be assembled using elements selected from single set of standardized modular components. The assembly process relies entirely on the self-aligning features of the standardized modular components, thereby eliminating the elaborate and error-prone manual assembly and alignment procedures known in the art.

摘要翻译： 一种磁盘驱动器致动器组件，其适于以单一模块化部件线组合成多种配置中的一种，而无需手动监控的对准步骤。 执行器通过引入一组通用的自对准模块件来提高可制造性和惯性。 几个自对准模块化部件中的每一个可以用于组装几个不同的致动器组件设计中的任何一个。 也就是说，可以使用从单组标准化模块组件中选择的元件来组装从一到六个头部提供的头部堆叠组件（HSA）。 组装过程完全依赖于标准化模块化组件的自对准特征，从而消除了本领域已知的精心设计和容易出错的手动组装和校准过程。