HEAT SINK AND HOUSING

PROBLEM TO BE SOLVED: To improve heat radiation efficiency of a heat sink.SOLUTION: A heat sink is provided with: fins 5 provided on a surface 4 of a flat part 3; a cavity part 1 provided adjacent to the flat part 3; and fins 8 provided in the cavity part 1 to cause airflow in the cavity part 1 by c...

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Bibliographische Detailangaben
1. Verfasser:	KAKIYA TERUO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS SEMICONDUCTOR DEVICES
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Zusammenfassung:	PROBLEM TO BE SOLVED: To improve heat radiation efficiency of a heat sink.SOLUTION: A heat sink is provided with: fins 5 provided on a surface 4 of a flat part 3; a cavity part 1 provided adjacent to the flat part 3; and fins 8 provided in the cavity part 1 to cause airflow in the cavity part 1 by chimney effect. The airflow improves heat radiation efficiency.SELECTED DRAWING: Figure 1 【課題】ヒートシンクの放熱効率を向上させる。【解決手段】平坦部３の表面４に設けられるフィン５と、平坦部３に隣接して設けられる空洞部１と、空洞部１の内部に設けられるフィン８とを設けることにより、煙突効果により空洞部１内に空気の流れが生じ、この空気の流れにより放熱効率が向上する。【選択図】図１