Heat sink attachment assembly

Details Heat sink attachment assembly Heat sink attachment assembly

1994-09-29

1995-07-04

Echols, P. W.

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29515, B21D 3900, B23P 1526

Patent

active

054288975

ABSTRACT:
A mounting spring clamp for securing a heat sink to a device package is secured to the heat sink by positioning the central body portion of the spring clamp in an attachment clip. The clip is compressed and positioned in a groove of the heat sink. The clip comprises a semi-circular shaped seat with ears extending from both sides of the seat and is made from a flexible material. Compression of the ears reduces the seat diameter, thereby trapping the spring's central body, and also creates spring force in the ears, thereby trapping the clip between the fins of the heat sink. The mounting spring has an elongated body with ends extending from the axis of its central body. The ends may be trapped or hooked in appropriate receivers on a frame or socket holding an electronic device package to secure the heat sink adjacent the device package.

REFERENCES:
patent: 3522646 (1970-04-01), Sibthorp
patent: 4095328 (1978-06-01), Cawthorne
patent: 4509839 (1985-04-01), Lavochkin
patent: 5251101 (1993-10-01), Liu
patent: 5307239 (1994-04-01), McCarty et al.
Almquist, F. A. and Parsapour, H. B. "Spring-Clip Mounted Extruded Aluminum Heat Sink," IBM Tech. Disclosure Bull., vol. 23, No. 12, May 1981, P. 5303.

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