| 摘要 |
<p>PURPOSE: A watermelon packaging box offering a cold storage effect is provided to secure the freshness of watermelon stored inside the packaging box, and to economically install the packaging box. CONSTITUTION: A watermelon packaging box includes insulating walls(30a,30b) facing each other, a cold air exhausting hole(31), a partition wall formed on a cover, and a refrigerant storage case. The insulating walls include an edge unit for forming the storage space(C). The cold air exhausting hole is formed in between the two insulating walls. The partition wall on the cover corresponds to the shape of the cold air exhausting hole.</p> |
