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Jack Nut for Attaching Voltage Regulator Heat Sink to Inside Surface of Cover of Enclosure for Improved Heat Transfer

IP.com Disclosure Number: IPCOM000049766D
Original Publication Date: 1982-Jul-01
Included in the Prior Art Database: 2005-Feb-09
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Corcoran, PM: AUTHOR [+4]

Abstract

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.

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Jack Nut for Attaching Voltage Regulator Heat Sink to Inside Surface of Cover of Enclosure for Improved Heat Transfer

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.

The drawing shows a conventional three-terminal voltage regulator having a dielectric case 2, three terminals 3, and a heat sink 4. A hole 5 and notches 6 are conventionally provided in the heat sink. The jack-nut 7 is shown spaced away from the heat sink. It has a threaded opening 8 for receiving a screw. It has staking elements 9 that fit into the notches 6 and an anti-rotation ledge 10.

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