The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 20, 1988
Filed:
Aug. 25, 1986
Bernhard Buselmeier, Munich, DE;
Herbert Prussas, Reichertshausen/Ilm, DE;
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Abstract
A heat dissipating housing (W/Gl/G) for a circuit component (IC) consists of at least one bottom tub (G) and a cover (W) having a planar cover face. A frame-shaped portion of this cover face serves as a bearing surface (TF) for meeting a planar bearing surface (TF) of the sidewalls (G1) of the bottom tub (G). Both bearing surfaces (TF) are finally fastened together. At least parts of the cover's outside surface (W) are cooled in operation by a cooling medium (KL), dissipated heat being conveyed from the circuit component (IC) via a stiff heat conducting body (SC1, SC2) and a good heat conductor element consisting of elastic material (FE/WS/WL) to the cover (W). In each instance, at least one good heat conductor spring structure (WL/WS) with feather tongues (WL) is inserted in lateral gaps between the heat conducting body (SC1, SC2) and at least two of the sidewalls (G1) of the bottom tub (G) in an expanding manner by means of its feather tongues (WL) so that these spring structures (WL/WS) adhere through friction forces. The element (FE) and the spring structures (WS/WL) are formed as a cohering spring unit (Fe/WL/WS) from a single piece of spring plate with a center part (FE) and side parts (WS). The good heat conductor cover (W) is connected with the center part (FE) firmly and heat conductingly. Centering retention of cover (w) by the spring unit inhibits displacement of cover (w) relative to the sidewalls.