Shelf unit for electronic communication devices

Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor

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361415, 165DIG5, 62418, H05K 720

Patent

active

044478569

ABSTRACT:
Electronic communication device shelf units for packing therein printed circuit boards wherein the shelf units are to be put one upon another in a cabinet, wherein each said shelf unit comprises hollow side plates provided with air inlet openings on their outer faces, and a top plate which is connected to the side plates and having a V-shaped heat diffusion plate defining thereon an air introduction space; the side plates are provided, on their inner faces, with openings communicating with the air introduction space, such that hot air diffusion for each shelf unit is independent of the other shelf units.

REFERENCES:
patent: 3019620 (1962-02-01), Constantini
patent: 3298195 (1967-01-01), Rashodoff
patent: 3299664 (1967-01-01), Booth
patent: 3730264 (1973-05-01), Krylow
patent: 4158875 (1979-06-01), Tajima
patent: 4293891 (1981-10-01), Matsui
The Cited Ericsson Review #2, 1976, "New Packaging Structure for Electronic Switching Equipm.
Also Ericsson Tel. Sw. Sys. AXE 10, 1976, pp. 48-57.
Japan Publication #(Unexamined Patent) 53-136901, 11/29/78.

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