公开(公告)号：US5422767A

公开(公告)日：1995-06-06

申请号：US243722

申请日：1994-05-17

申请人： Michael R. Hatchett ,  John S. Heath ,  Hubert C. Lee ,  Eun K. Row ,  Roger D. Spencer ,  Michael L. Workman

发明人： Michael R. Hatchett ,  John S. Heath ,  Hubert C. Lee ,  Eun K. Row ,  Roger D. Spencer ,  Michael L. Workman

IPC分类号： G11B20/18 ,  G11B25/04 ,  G11B33/08 ,  G11B33/12 ,  G11B33/14 ,  G11B17/02

CPC分类号： G11B25/043 ,  G11B20/1803 ,  G11B33/08 ,  G11B33/142

摘要： A multiple disk drive system having two disk-head assemblies (HDA) internally mounted on a rigid frame and accessible via a common industry-standard interface connector is provided. Each HDA is enclosed in a separate housing which is mounted on the disk drive system frame. A vibration damper mounted on the disk drive system frame physically contacts each HDA housing providing a spring force which minimizes the effects of shock and vibration on the operation of the HDAs. The vibration damper is coated with a low-wear, electrically insulating material to provide electrical isolation between the vibration damper and the HDAs housings. The coating material is chosen to also provide a desired coefficient of friction between the vibration damper and the HDA housings. A single electronic controller board is shared by both HDAs and is mounted on the bottom side of the frame underlying the HDAs. The controller board may implement SCSI or IPI interfaces in either differential or single-ended versions. The assembly is fully enclosed with metal top and bottom covers to provide separate enclosures for the HDAs, controller board cooling and EMC and RFI protection.

摘要翻译： 提供了具有内部安装在刚性框架上并且可通过公共工业标准接口连接器访问的两个盘头组件（HDA）的多磁盘驱动器系统。 每个HDA封装在安装在磁盘驱动器系统框架上的单独外壳中。 安装在盘驱动系统框架上的减振器物理地接触每个HDA壳体，提供弹簧力，其使冲击和振动对HDA的操作的影响最小化。 振动阻尼器涂有低磨损的电绝缘材料，以在振动阻尼器和HDA外壳之间提供电气隔离。 选择涂层材料也可以在振动阻尼器和HDA壳体之间提供期望的摩擦系数。 单个电子控制器板由HDA共享，并且安装在HDA底层的底部。 控制器板可以在差分或单端版本中实现SCSI或IPI接口。 该组件完全与金属顶盖和底盖封闭，为HDA，控制器板冷却和EMC和RFI保护提供单独的外壳。