发明申请
US20050094311A1 Damped disc drive assembly, and method for damping disc drive assembly
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阻尼盘驱动组件及阻尼盘驱动组件的方法
- 专利标题: Damped disc drive assembly, and method for damping disc drive assembly
- 专利标题(中): 阻尼盘驱动组件及阻尼盘驱动组件的方法
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申请号: US10698937申请日: 2003-11-03
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公开(公告)号: US20050094311A1公开(公告)日: 2005-05-05
- 发明人: Daniel Boss , Richard Williams
- 申请人: Daniel Boss , Richard Williams
- 主分类号: G11B17/00
- IPC分类号: G11B17/00 ; G11B25/04 ; G11B33/08
摘要:
A disc drive assembly is provided including a head disc assembly, a housing having a base and a cover cooperating with one another to form a chamber in which the head disc assembly is housed, and a damper structure in operative association with the housing for dampening noise and/or vibration emanated from the head disc assembly. The damper structure includes a viscoelastic damper layer and a continuous, polymeric constraining layer intimately contacting and encasing the viscoelastic damper layer. The constraining layer has a greater stiffness and higher modulus of dynamic shearing elasticity than the viscoelastic damper layer, and is molded from a high density filler and a moldable compound that is immiscible with the viscoelastic damper layer to provide a discrete interface between the constraining layer and the viscoelastic damper layer.