Shielding structure
First Claim
1. A structure for the shielding of electronic components (38) arranged on a printed circuit board from outside electromagnetic fields, comprisinga shielding housing means (10), which defines a first chamber (24) exposed to electromagnetic fields and a shielded second chamber (28),electric conductor means (36) extending to said electronic components (38) in said first chamber, anda multi-layer printed circuit board (22) provided with outer surfaces and an internal, grounded conductive coating (42),said conductor means including through-contacts (54) passing through said multi-layer printed circuit board,wherein(a) said printed circuit board (22) has a first region (26) which is provided with said internal, grounded conductive coating (42), and a second region (30) which carries said electronic components (38) to be shielded,(b) said housing (10) forms a shielding partition (16) which extends to said printed circuit board (22) and has an end face (20) engaging said printed circuit board (22) between said first and second regions (26 and 30, respectively), said first chamber being limited by said first range (26) of said printed circuit board (22),(c) shielding means (44) for blocking electromagnetic fields are provided in said printed circuit board (22) adjacent said partition (16), said shielding means (44) extending transversely to said surfaces of said printed circuit board,(d) said through-contacts (54) of said conductor means (36) extending insulatedly through said internal, grounded conductive coating (42), and(e) said conductor means (36) furthermore extending along said printed circuit board (22) on the side of the grounded conductive coating (42) remote from said first chamber (24) and insulatedly through said transversely-extending shielding means (44) to said electronic components (38).
1 Assignment
0 Petitions
Accused Products
Abstract
A structure for the shielding of electronic components from outside electromagnetic fields is to be designed in such a way tha a single printed circuit board serves both to separate a "polluted" space from a "clean" space and to accommodate the components of the device to be shielded itself. To this end, the printed circuit board has a first region which is provided with an internal, grounded conductive coating, and a second region which carries the electronic components to be shielded. A housing forms a shielding partition which extends to the printed circuit board and has an end face engaging the printed circuit board between the first and second regions. The first chamber is limited by the first region of the printed circuit board. Shielding for blocking electromagnetic fields are provided in the printed circuit board adjacent partition. These shielding extend transversely to the surfaces of the printed circuit board. Through-contacts of connecting lines extending to the electronic components in the first chamber extend insulatedly through the internal, grounded conductive coating. The connecting lines furthermore extend along the printed circuit board on the side of the grounded conductive coating remote from the first chamber and insulatedly through said transversely-extending shielding to the electronic components.
49 Citations
13 Claims
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1. A structure for the shielding of electronic components (38) arranged on a printed circuit board from outside electromagnetic fields, comprising
a shielding housing means (10), which defines a first chamber (24) exposed to electromagnetic fields and a shielded second chamber (28), electric conductor means (36) extending to said electronic components (38) in said first chamber, and a multi-layer printed circuit board (22) provided with outer surfaces and an internal, grounded conductive coating (42), said conductor means including through-contacts (54) passing through said multi-layer printed circuit board, wherein (a) said printed circuit board (22) has a first region (26) which is provided with said internal, grounded conductive coating (42), and a second region (30) which carries said electronic components (38) to be shielded, (b) said housing (10) forms a shielding partition (16) which extends to said printed circuit board (22) and has an end face (20) engaging said printed circuit board (22) between said first and second regions (26 and 30, respectively), said first chamber being limited by said first range (26) of said printed circuit board (22), (c) shielding means (44) for blocking electromagnetic fields are provided in said printed circuit board (22) adjacent said partition (16), said shielding means (44) extending transversely to said surfaces of said printed circuit board, (d) said through-contacts (54) of said conductor means (36) extending insulatedly through said internal, grounded conductive coating (42), and (e) said conductor means (36) furthermore extending along said printed circuit board (22) on the side of the grounded conductive coating (42) remote from said first chamber (24) and insulatedly through said transversely-extending shielding means (44) to said electronic components (38).
Specification