| 摘要 |
The box comprises an insulating outer box (2) with an inner box (4) arranged with side walls and a bottom at a distance from the inside of the outer box walls and bottom. A heat source (10) is arranged in the space (8) formed between the outer and inner boxes. The inner box walls and bottom are whole and at least two opposing side walls diverge upwards from each other to form a narrowing wedge-shaped gap with the corresponding opposing walls of the outer box in order to produce an improved air flow and heat emission. |
