Showa Aluminum Corporation

Suzushi Hashimoto

Tomio Ito

Kaoru Hasegawa

Shozo Uto

A heat sink device for use in desktop electronic devices comprises a heat sink which can be firmly attached to a CPU assembly with extremely great strength. The holes to be formed in the CPU circuit board of the CPU assembly or the heat sink can be made as small as possible to ensure a great advantage in design. Fastening members, connecting pins or like fasteners used are unlikely to project beyond the outer surface of the CPU assembly to ensure compactness. Furthermore, the heat sink device achieves a high radiation efficiency and is less costly to manufacture.

Heat sink devices for use in electronic devices

A plate fin heat exchanger having a first flow channel and a second flow channel which are formed by at least three flat plates arranged in parallel with one another at a predetermined spacing and opposed side walls provided between the adjacent flat plates. A platelike wall interconnecting the side walls is provided within at least one of the first and second flow channels and has a multiplicity of projections arched when seen from one side and formed by cutting the interconnecting wall and being projected upward and downward. Each of the arched projections is opposed to a fluid passage.

Growing community of inventors

Kawachi-gun, Japan

Suzushi Hashimoto