Card-receiving electronic device having grounding spring
First Claim
1. A card-receiving electronic device that includes a circuit board having an upper surface, a plurality of conductive traces and a ground plane, said electronic device also including a card-receiving mechanism mounted over said circuit board upper surface with said mechanism including a pair of primarily horizontally-extending guide tracks that guide a card in longitudinal movement into and out of said mechanism, characterized by:
- a grounding spring having an elongated upper portion forming a card-contacting part positioned along one of said guide tracks, and having a downwardly-extending leg with a lower leg end electrically connected to said circuit board ground plane.
1 Assignment
0 Petitions
Accused Products
Abstract
A grounding spring is provided for discharging static electricity on a card as the card is inserted into an electronic device and for thereafter grounding the card, which minimizes electromagnetic radiation during electrostatic discharge in a simple and easily mounted construction. The grounding spring (60, FIG. 3) is formed of sheet metal and has a card-engaging part 64 lying within a recess of a card-guiding track (72). The grounding spring has a downwardly extending leg (90) that extends down into a hole (92) of a circuit board lying under the card-receiving mechanism, and has a substantially 180° loop (112) connecting the card-engaging part to the downward leg.
57 Citations
6 Claims
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1. A card-receiving electronic device that includes a circuit board having an upper surface, a plurality of conductive traces and a ground plane, said electronic device also including a card-receiving mechanism mounted over said circuit board upper surface with said mechanism including a pair of primarily horizontally-extending guide tracks that guide a card in longitudinal movement into and out of said mechanism, characterized by:
a grounding spring having an elongated upper portion forming a card-contacting part positioned along one of said guide tracks, and having a downwardly-extending leg with a lower leg end electrically connected to said circuit board ground plane. - View Dependent Claims (2, 3, 4)
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5. A combination of a card that contains electronic circuitry and an electronic device that has a slot for receiving said card, comprising:
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a card receiving mechanism mounted on said electronic device, which includes a frame having a card-receiving slot and a pair of laterally spaced card-guiding tracks aligned with said card-receiving slot which guides said card in forward movement into said card-receiving slot, said card having a front end forming a connector and said card-receiving slot having a front end with a frame connector that includes multiple contacts, with said frame connector positioned to mate with said card connector when said card is fully inserted into said frame; a circuit board lying under said card-receiving mechanism, said board having a plurality of conductive traces connected to said contacts of said frame connector, and said board having a ground plane; said card having opposite edges that each have upper and lower corners and said card having at least one card ground contact connected to said electronic circuit, with said card ground contact lying at a first of said card edges; a first of said tracks has upper and lower edge guides forming a recess with corners, that guides top and bottom corners of a first edge of said card; a grounding spring having a card-contacting part lying in said recess and bearing against said card ground contact, said spring having a downwardly extending leg extending to said circuit board and electrically connected to said circuit board ground plane. - View Dependent Claims (6)
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Specification