Adapter card electromagnetic compatibility shielding
First Claim
1. An electromagnetic shield comprising:
- an electrically conductive frame for establishing electrical contact between a chassis wall and an expansion card mounting bracket, wherein the frame has a plurality of spring fingers interconnected about a perimeter of a central opening in the frame, wherein each spring finger defines a central axis that extends outwardly away from the central opening, wherein the plurality of spring fingers incline along the central axis to extend out of a plane defined by a substantially planar portion of the frame, and wherein each spring finger includes opposing tabs extending laterally relative to the central axis and inclined toward the plane.
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Accused Products
Abstract
An electromagnetic shield comprising an electrically conductive frame for establishing electrical contact between a chassis wall and an expansion card mounting bracket. The frame has a plurality of spring fingers interconnected about a perimeter of a central opening in the frame, wherein each spring finger defines a central axis that extends outwardly away from the central opening. The frame may include a substantially planar portion adjacent the central opening in the frame, wherein the plurality of spring fingers incline along the central axis to extend out of the plane defined by the substantially planar portion. The incline of the spring fingers allows a mounting bracket to slide laterally without jamming against the side of a spring finger during installation, removal or side-to-side shifting of the mounting plate.
12 Citations
20 Claims
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1. An electromagnetic shield comprising:
an electrically conductive frame for establishing electrical contact between a chassis wall and an expansion card mounting bracket, wherein the frame has a plurality of spring fingers interconnected about a perimeter of a central opening in the frame, wherein each spring finger defines a central axis that extends outwardly away from the central opening, wherein the plurality of spring fingers incline along the central axis to extend out of a plane defined by a substantially planar portion of the frame, and wherein each spring finger includes opposing tabs extending laterally relative to the central axis and inclined toward the plane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An electromagnetic shield, comprising:
an electrically conductive frame for establishing electrical contact between a chassis wall and an expansion card mounting bracket, wherein the frame has a plurality of wave plates interconnected about a perimeter of a central opening in the frame, and wherein each wave plate defines a central axis that extends outwardly away from the central opening, and wherein each wave plate includes a first portion that inclines along the central axis in a first direction out of a plane defined by the frame and second and third portions that incline toward the plane of the frame on opposing sides of the central axis.
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20. An electromagnetic shielding system, comprising:
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a substantially planar chassis wall having an opening through the wall; an expansion card mounting bracket for securing to the chassis wall over the opening; and an electromagnetic shield including an electrically conductive frame disposed between the chassis wall and the mounting bracket to establish electrical contact between a chassis wall and an mounting bracket, wherein the frame has a central opening aligned with the chassis wall opening, wherein the frame has a plurality of spring fingers interconnected about a perimeter of the central opening in the frame, wherein each spring finger defines a central axis that extends outwardly away from the central opening, wherein the plurality of spring fingers incline along the central axis to extend out of a plane defined by a substantially planar portion of the frame, and wherein each spring finger includes opposing tabs extending laterally relative to the central axis and inclined toward the plane.
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Specification