Jack Nut for Attaching Voltage Regulator Heat Sink to Inside Surface of Cover of Enclosure for Improved Heat Transfer
Original Publication Date: 1982-Jul-01
Included in the Prior Art Database: 2005-Feb-09
A three-terminal voltage regulator is mounted on a circuit card inside a metal enclosure that has a removable metal cover. The terminals of the regulator are bent at 90 degrees so that the heat sink is flexibly positioned parallel to the card and to the removable cover. A jack-nut is fitted to the side of the heat sink that faces the card, with the threads of the jack-nut lined up with the usual screw-receiving opening in the heat sink. A screw-receiving opening is also formed in the cover of the enclosure. When the cover has been put into place, an external screw is threaded through the jack-nut to pull the heat sink into contact with the cover of the enclosure. The metal cover provides improved cooling for the regulator.