| 摘要 |
PURPOSE:To make it possible to take articles in and out without degrading the cooling performance of a storage box in a low temperature storage box of 'indirect cooling system'. CONSTITUTION:An insulated box 6 has an opening on the front side and the rear side. A door is installed so that it may close freely the opening on the front and rear sides of the insulated box 6 respectively. There are also installed good conductor boxes 21 and 22, which are provided with an opening on the front side and the rear side, and which are laid out at a spacing inside the insulated box 6, and which are used as storage chambers 31 and 32 inside. A cold air passage 39 is formed between the good conductor boxes 21 and 22 in their every direction and the insulated box 6. A vaporizer 33 of a cooling device and a fan 34 are laid out in the cooling passage 39. The cold air cooled with the vaporizer 33 is forcibly circulated in the cooling passage 39 by means of the fan 34, thereby cooling the storage chambers 31 and 32 indirectly. |
