| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a frog type heat receiver/dissipator, and its application method, in which heat receiving/dissipating efficiency can be enhanced remarkably. SOLUTION: The frog type heat receiver/dissipator is constructed to provide a convection control air duct having a main convection channel between fin groups and a sub-convection channel proximate thereto. The sub-convection channel has a specified cross-sectional area including zero and such an arranging method as a fresh convection current is introduced constantly into a heat receiver/dissipator from the outside thereof is employed. When the cross-sectional area of the sub-convection channel is zero in the convection control air duct, loss convection of a frog type heat sink group having an appropriate fin density decreases approximately to zero and the efficiency of the heat receiver/dissipator is increased remarkably. In case of a heat receiver/dissipator having an excessively high fin density, fluid resistance of main convection is lowered significantly by selecting the cross-sectional area of the sub-convection channel and the efficiency of the heat receiver/dissipator is increased remarkably. When a plurality of frog type heat receivers/dissipators are applied in the same apparatus, only a fresh convection current is introduced into each heat receiver/dissipator by arranging each heat receiver/dissipator while inclining against the convection current and lowering of heat receiving/dissipating efficiency due to thermal interference is eliminated. |
