Ruggedized host module
First Claim
1. A host module assembly for protecting a hosted device from shock and vibration, including a case that is suitably configured to receive a hosted device therein and a hosted device located within the case, wherein said hosted device includes a housing having at least two opposite sidewalls, a top wall and a bottom wall;
- and the host module includes a mechanical energy dissipative element formed of an elastic envelope containing a body of open cell material having orifices communicating at least some of the cells with each other, a viscous liquid filling at least some of the cells, and an air space containing a compressible gas, wherein the host module assembly further comprises;
at least one longitudinally elongated rail attached to at least one of said sidewalls, wherein said rail is configured to have at least one exposed major wall surface of suitable size and smooth surface characteristic to serve as a reaction surface for interaction with said mechanical energy dissipative element; and
wherein the mechanical energy dissipative element is positioned against said reaction surface of the rail.
0 Assignments
0 Petitions
Accused Products
Abstract
An energy dissipative element (24) protects hard disk drives (22, 72, 92) from shocks and vibrations. A closed elastic envelope (48) houses a body of open cell foam (54), a volume of viscous liquid (56), and a compressible gas (64). Under compression or expansion of the foam (54), viscous liquid (56) flows through cell orifices and thereby dissipates energy resulting from external force applied against the elastic wall (48). The energy dissipative elements (24) are applied between a disk drive housing (22) and an outer case (26) to create a ruggedized portable disk drive module (20).
-
Citations
17 Claims
-
1. A host module assembly for protecting a hosted device from shock and vibration, including a case that is suitably configured to receive a hosted device therein and a hosted device located within the case, wherein said hosted device includes a housing having at least two opposite sidewalls, a top wall and a bottom wall;
- and the host module includes a mechanical energy dissipative element formed of an elastic envelope containing a body of open cell material having orifices communicating at least some of the cells with each other, a viscous liquid filling at least some of the cells, and an air space containing a compressible gas, wherein the host module assembly further comprises;
at least one longitudinally elongated rail attached to at least one of said sidewalls, wherein said rail is configured to have at least one exposed major wall surface of suitable size and smooth surface characteristic to serve as a reaction surface for interaction with said mechanical energy dissipative element; and wherein the mechanical energy dissipative element is positioned against said reaction surface of the rail. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- and the host module includes a mechanical energy dissipative element formed of an elastic envelope containing a body of open cell material having orifices communicating at least some of the cells with each other, a viscous liquid filling at least some of the cells, and an air space containing a compressible gas, wherein the host module assembly further comprises;
-
16. A method of protecting a hosted device carried in a host module assembly from deleterious mechanical shocks and vibrations, comprising:
-
isolating the hosted device from direct reception of shock by attaching longitudinally elongated side rails to opposite edges of said hosted device; applying a plurality of elastic dampers between major faces of said side rails and said host module in sufficient number and position to suspend said hosted device within the host module without substantial shock-transmitting contact with the host module other than through said side rails and dampers. - View Dependent Claims (17)
-
Specification