GROUNDING AND SCREENING DEVICE

摘要

The present invention relates to a device for earth-connecting a printed circuit board and an associated board front so as to achieve an EMC-shielding effect, and for earth-connecting the board front with an adjacent board front in a magazine that contains a plurality of printed circuit boards side-by-side such as to achieve an EMC-shielding effect, wherein the board front is comprised of a generally U-shaped profile and is mounted on the printed circuit board with its legs parallel with and directed towards the board. According to the invention the device includes a board spring (1) which is mounted on the board (2) and which extends from the edge of said board in a generally U-shape into resilient abutment with the board front (3), and a shielding spring (4) which embraces a leg (31) on the board-front profile and extends along the whole of the board front (3), such as to abut the free edge of the leg, wherein the shielding spring is bent away from the outer side of the leg at a small angle such as to abut an adjacent board front (3) and then back into abutment with the leg. When fitting the board front (3) to the printed circuit board (2), the board front will press against the board spring (1) and therewith make an earth connection between the printed circuit board (2) and the board front (3), and when inserting the printed circuit board (2) into the magazine an adjacent board front (3) will press against the shielding spring (4) on the outside of the leg and therewith make an earth connection between the board fronts (3).