| 摘要 |
PURPOSE:To high-efficiently diffuse a quantity of heat generated by an electronic part and to prevent overheating of the electronic part by embedding a heat pipe in a heat sink mounted on the base member of an artificial satellite and securely adhering a circuit substrate, on which an electronic part is mounted, to the heat sink. CONSTITUTION:When a heat control mechanism for an electronic device mounted on an artificial satellite and a spacecraft is applied to a power amplifier mounted on a communication satellite, a base member 4 is composed by a relay panel, and heat generated by an electronic part 1 is emitted in a space through the base member 4. The electronic part 1 is mounted on an electronic circuit substrate 6 through a heat carrier 5 formed of a heat good conductor, and the substrate 6 is securely adhered to the bottom of a casing 7 through a trapezoidal heat sink 3 having an extremely high volume of heat. A heat pipe 2 is embedded in the vicinity of the electronic circuit substrate 6 in the heat sink 3, heat generated by the electronic part 1 is transmitted to a heat pipe 2 through a heat carrier 5 and the electronic circuit substrate 6. The heat is diffused in an axial direction (vertically to a diagram paper) through isoentropic operation of a heat pipe. |
