| 摘要 |
PURPOSE:To reduce heat loss due to convection and provide the heater outputting radiation energy having a high radiating efficiency by a method wherein the heater is constituted by a plurality of thin plate-like protuberances, arranged horizontally near a heat source and having different heights, and air, whose flowing is precluded by the thin plate-like protuberances. CONSTITUTION:A heat insulating material 5 of polyurethane or the like is adhered to one surface of the uprightly standing heat source body 4. The thin plate-like protuberances 6 of polyester resin, having the thickness of 0.05- 1.0mm. and the heights of 12=5-50mm. which are increasing from the upper part to the lower part of the heat source body 4, are arranged horizontally on the other surface of the heat source body 4 with the distances of 11=2.5-50mm.. In said constitution, the air 7 between the thin plate-like protuberances 6, heated by the heat source body 4, stays its position due to the existance of the protuberances 6 above and below the air. As a result, the movement in the vertical direction of the high-temperature air is precluded and heat dissipation due to the convection may be reduced. |
