H - Electricity – 05 – K
Patent
H - Electricity
05
K
H05K 9/00 (2006.01) H01R 13/658 (2006.01) H01G 4/42 (1990.01)
Patent
CA 2078460
ABSTRACT The present invention relates to an RFI through-let for screening signals transmitted between different components, for instance circuit boards, of which one component is arranged in a screened space. The through-let includes signal-transmission through-let capacitors which are mounted in a screen plate intended to be positioned in a rectangular opening in the side-wall of the screened space. According to the invention, the screen plate (3) is comprised of a front part (3) which includes a rectangular, generally flat plate having tongues or tabs (7) disposed along the sides thereof and also having a central, rectangular hollow (9), and a holding part (5) which is soldered firmly in the vicinity of the hollow (9) of the front part (3). The holding part (5) includes a flat plate whose long sides are bent to form guide flanges (11) which extend perpendicularly downwards away from the front part (3), along a first line (A) corresponding to the long sides of the opening (6), and along a second line (B) downwardly of the first line are further bent inwardly towards one another. Parts (12) punched-out along the first line (A) cause shoulders (13) to be formed in the second bending operation, these shoulders projecting upwards and outwards towards the front part and are intended to grip-in behind the side-wall (4) of the space when fitting the screen plate (1) and therewith hold the screen plate firmly in the opening.
Hansson Kjell Olov
Ovanfors Erik Lennart
Marks & Clerk
Telefonaktiebolaget Lm Ericsson
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