Subassembly case including a flat sheet metal shield fastened wi

Details Subassembly case including a flat sheet metal shield fastened wi Subassembly case including a flat sheet metal shield fastened wi

1988-10-11

1989-11-07

Askin, Laramie E.

Electricity: conductors and insulators

Anti-inductive structures

Conductor transposition

361383, 361424, H05K 718, H05K 900

Patent

active

048794341

ABSTRACT:
A subassembly case (2) including a sheet metal shield (10) consisting of electrically conductive material, having venting holes (12), and being supported by recessed shoulders (18,20) on front and rear members (6, 8) of the subassembly case (2) to which it is detachably connected. The sheet metal shield (10) is flat and provided with holes of rectangular shape which are arranged in two rows (28, 30) and with their short sides (32) next to each other along a bearing area (14, 16) of the sheet metal shield (10). The sheet metal shield (10) is connected to the shoulders (18, 20) of the members (6, 8) by means of V-shaped fastening spring clips (34) each consisting of electrically conductive material and provided with lateral projections (36). In the snapped-in position of the fastening spring clips (34), the leg (40) of each fastening spring clip (34), designed as a detent hook (42), grips behind the respective shoulder (18, 20) of the front and rear members (6, 8). A sheet metal shield (10) is thus obtained whose storage or transport volume is substantially reduced and which can be detachably joined to the members (6,8) of the subassembly case (2) without additional holes in subassembly case parts.

REFERENCES:
patent: 3340587 (1967-09-01), Beyer
patent: 3502784 (1970-03-01), Kunkel
patent: 4114848 (1978-09-01), Bernard
patent: 4716493 (1987-12-01), Zelkowitz
"Einbausystem ES 902C 19-Zoll-Bauweise", Katalog ET 1.1, Ausgabe 1987, Siemens Aktiengesellschaft.

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