| 摘要 |
PROBLEM TO BE SOLVED: To provide an active heat absorbing/radiating apparatus by utilizing a material having three properties, i.e., lightweight, flexible, and high thermal conductivity properties. SOLUTION: This active heat absorbing/radiating apparatus is particularly suitable for thermal control of instruments loaded onto spacecrafts such as artificial satellites and aerospace vehicles, has such a structure that a thermal doubler in the loaded instrument is provided integrally with a radiating fin, which faces an aerospace. The surface of the fin is formed of a material which has high emissivity and low sunlight absorption. The backside of the fin is formed of a material which has low emissivity and high sunlight absorption. The radiating fin is opened/closed depending upon the temperature of the instrument to function as a heat radiating or absorbing apparatus. This heat absorbing/radiating apparatus is a single heat controller which functions simultaneously as a development radiator, a thermal louver, and a heater controller and thus can realize small power consumption, small size, and lightweight. Further, the mechanically movable part does not have any controlling electronic equipment and thus can realize electric energy reduction, lightweight, high reliability, and prolonged service life. COPYRIGHT: (C)2004,JPO&NCIPI
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