FAN-EQUIPPED HEAT SINK

• Main Authors: MURAKAMI MASAAKI, IDE TAKUYA, NUMATA TOMIYUKI
• Format: Patent
• Language: English; Japanese
• Published: 12.03.2020
• Subjects: BASIC ELECTRIC ELEMENTS; BLASTING; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; HEATING; LIGHTING; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PRINTED CIRCUITS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SEMICONDUCTOR DEVICES; WEAPONS

To provide a fan-equipped heat sink that can be made thinner and more compact, has high heat dissipation efficiency, is kept quiet, can be realized at low cost, and can maintain flexibility in housing design.SOLUTION: A heat sink 1 includes a metal heat-receiving substrate 2, a centrifugal fan 3 arranged on the upper surface side of the heat receiving base 2, a metal plate-shaped wall 4 that stands on the upper surface of the heat receiving base 2 at a position around the facing outer peripheral portion having an air discharge port of the centrifugal fan 3 and in which a plurality of through holes 41 are formed so as to be opened on a plate surface 40 facing the centrifugal fan 3, and a lid member 5 fixed to the upper end 42 of the metal plate-shaped wall 4 and closing a space s1 inside the plate-like wall.SELECTED DRAWING: Figure 1 【課題】全体の薄型化およびコンパクト化が可能で、放熱効率が高く、静寂を保ち、また、低コストで実現でき、筐体設計の自由度を維持できる、ファン付きヒートシンクを提供する。【解決手段】ヒートシンク１において、金属製の受熱基体２と、受熱基体２の上面側に配される遠心ファン３と、受熱基体２の上面における遠心ファン３の空気の吐出口を有する外周部に対向する周りの位置に立設され、遠心ファン３に対向する板面４０に開口する複数の貫通孔４１が形成されている金属製の板状壁４と、板状壁４の上端４２に固定され、板状壁内側の空間ｓ１を塞ぐ蓋部材５とを備える。【選択図】図１