Unitary die-cast assembly for electronic circuits

Details Unitary die-cast assembly for electronic circuits Unitary die-cast assembly for electronic circuits

1980-06-04

1982-01-26

Reynolds, B. A.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

165135, 188 1B, 220 22, 220305, H05K 504

Patent

active

043130259

ABSTRACT:
A unitary die-cast for housing electronic circuits includes one or more compartments or cavities adapted to receive a circuit boards therein. A compartment with a cavity includes a post centrally located in the bottom and extending upwardly in the middle of the cavity. A fastening device, such as a screw, is used to forcibly affix a rigid but flexible cover onto the housing at the center post. The cast and the cover are made of electrically conductive but acoustically dampening material. When the cover is forcibly affixed to cover the cavity, the cover and the chassis provide an acoustically and microphonically dampened housing for the circuit placed therein. The cast includes a wall separating the compartments, and the wall has a cavity along the length thereof and substantially co-extensive therewith for providing a thermal separation between the compartments whereby the wall acts as a thermal insulator.

REFERENCES:
patent: 266677 (1882-10-01), Corbett
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patent: 4066837 (1978-01-01), Miura
patent: 4091232 (1978-05-01), Lenk

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