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Gimbal Suspended Cooling Piston

IP.com Disclosure Number: IPCOM000052238D
Original Publication Date: 1981-May-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Otte, WC: AUTHOR [+2]

Abstract

A cooling piston 1 abuts an electronic module 2 and, through conducting the heat therefrom, is used to cool the module. Piston 1 is inserted in a cylinder 3 of a cooling plate or head 4. In general, the shape of piston 1 is a cylindrical body having a flat face abutting the module. A problem might occur in such a configuration if the module is tilted slightly, in which case the flat surface would not conform or have a full contact therewith. Shown in the drawing is a configuration that prevents this by allowing the face of piston 1 to abut module 2 even though there might be some slight degree of tilt. To accomplish this, the upper side wall of piston 1 has a curved or spherical configuration, allowing a slight degree of tilt.

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Gimbal Suspended Cooling Piston

A cooling piston 1 abuts an electronic module 2 and, through conducting the heat therefrom, is used to cool the module. Piston 1 is inserted in a cylinder 3 of a cooling plate or head 4.

In general, the shape of piston 1 is a cylindrical body having a flat face abutting the module. A problem might occur in such a configuration if the module is tilted slightly, in which case the flat surface would not conform or have a full contact therewith. Shown in the drawing is a configuration that prevents this by allowing the face of piston 1 to abut module 2 even though there might be some slight degree of tilt. To accomplish this, the upper side wall of piston 1 has a curved or spherical configuration, allowing a slight degree of tilt. The upper part of piston 1 is connected to a Gimbal spring 5 which in turn is connected to a cylindrical slug 6 disposed in the upper part of cylinder 3. A compression spring 7 forces slug 6 downwardly, and a pivot 8 connected to slug 6 bears against piston 1 in an axial recess therein. Thus, piston 1 is forced into contact with module 2. The Gimbal spring is connected in such a fashion as to allow piston 1 to tilt about the end of pivot 8 and thereby conform to any tilt in module 2.

As an alternative (not shown), the piston could be formed with straight side walls and having a diameter slightly less than that of the cylinder so as to allow for some degree of tilt. Such piston could also be connected to a Gim...