Thermal diffuser and cooling apparatus for cooling heat source using the same

• Main Authors: SAKIMICHI SATOSHI, KOHARA KIMIO, NODA KOJI
• Format: Patent
• Language: English
• Published: 15.12.2011
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEAT EXCHANGE IN GENERAL; HEATING; LIGHTING; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRINTED CIRCUITS; PUNCHING METAL; SEMICONDUCTOR DEVICES; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING; WEAPONS; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

A thermal diffuser includes a plurality of thermally-conductive plates, each of which has a strip-like shape. The plurality of thermally-conductive plates is laminated onto one another in a plate-thickness direction of the strip-like shape to form a laminated body. Each of the plurality of thermally-conductive plates has thermal conductivities in a longitudinal direction and in a width direction of the strip-like shape better than a thermal conductivity in the plate-thickness direction. The thermally-conductive plates has sides, each of which extends in the longitudinal direction. The laminated body is formed such that the sides of the thermally-conductive plates form a plate surface of the laminated body, which surface extends in the plate-thickness direction that serves as a lamination direction, in which the thermally-conductive plates of the laminated body are laminated. A direction perpendicular to the plate surface corresponds to a thickness direction of the laminated body.