US 6,714,423 B1Granted

Protecting device against electromagnetic radiation comprising EMI-gaskets

AssigneeNokia Corporation

InventorReijo Nurmi

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Abstract

The object of the invention is a device and an elongated EMI gasket (20) made for an electroconductive wire, used for its EMI shiekding (electromagnetic interference). The EMI gasket (20) comprises, on a first plane, a bending portion (23a, 23b) that forms a first flat part (23) for attaching the EMI gasket (20) to a device to be EMI shielded so that the EMI gasket touches the device to be EMI shielded with its surface, which is according to said first plane. Typically, the attachment is carried out by pushing the EMI gasket (20) into a groove (26) adapted in connection with the joint to be EMI sealed. EMI tightness is achieved by pressing together parts (21, 22) of the device to be EMI shielded, whereupon the EMI gasket (20) attached in between them forms an electric contact at short distances between said parts.

Claims15

Dependent claims

A device that comprises a first part and a second part and positioned between them an EMI (electromagnetic interference) gasket made from an electrically conductive wire bent into an elongated shape to form an elongated element, which EMI gasket comprises:

in a first plane, a bending portion which is repeated in the EMI gasket and which extends in said first plane in at least two non-parallel directions so that the bending, portion forms a first flat part in said first plane, the EMI gasket being configured for attachment by said bending portion to said first part of the device and to make electrical contact with said first part;
and in a second plane different than the first plane, another portion which is repeated in the EMI gasket and which is configured to make electrical contact with the second part when said first and second parts of the device are joined, in order to provide electromagnetic interference shielding for said device, wherein the EMI gasket is attached to said first part of the device by solder.

Dependencies are inferred from the claim text.