US 11,751,362 B2
Thermally activated retractable EMC protection
John S. Werner, Fishkill, NY (US); Noah Singer, White Plains, NY (US); and Samuel R. Connor, Apex, NC (US)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by INTERNATIONAL BUSINESS MACHINES CORPORATION, Armonk, NY (US)
Filed on Oct. 22, 2021, as Appl. No. 17/451,833.
Prior Publication US 2023/0129547 A1, Apr. 27, 2023
Int. Cl. H05K 9/00 (2006.01); H05K 7/20 (2006.01); H05K 5/00 (2006.01)
CPC H05K 7/20836 (2013.01) [H05K 5/00 (2013.01); H05K 7/20009 (2013.01); H05K 9/0009 (2013.01); H05K 9/0015 (2013.01); H05K 2201/0308 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A retractable electromagnetic compatibility (EMC) protection apparatus for a removable component comprising:
an EMC shape memory alloy (SMA) bracket attached to a surface of the removable component;
a heating pad wherein a first side of the heating pad is attached to the EMC SMA bracket;
a shape memory alloy (SMA) attached to a second side of the heating pad, the shape memory alloy having a first shape at a temperature below an activation temperature and a second shape at a temperature above the activation temperature;
an EMC protection bracket connected to the shape memory alloy; and
an EMC protection component coupled to the EMC protection bracket, wherein the EMC protection device is configured to be inserted in and out of an enclosure opening of the removable component in response to heat being applied to the shape memory alloy to form an EMC seal.