Low-temperature packaging box providing a dual-wall Seokbinggo effect

Low-temperature packaging box with a Seokbinggo (ice storage) effect created by an air gap between inner and outer boxes

This technology is a low-temperature packaging box that provides a dual-wall Seokbinggo effect, consisting of an inner box that forms an air gap with an outer box via pillar walls, along with internal intake and exhaust vents.

When packaging and distributing refrigerated or frozen goods, the interior is prone to warming due to external temperatures, making it difficult to maintain low temperatures without additional refrigerants.

By utilizing an air gap between the inner and outer boxes and a cold air convection structure that ensures only cold air remains inside, this technology can be applied to low-temperature packaging to maintain temperatures through a Seokbinggo effect without the need for extra refrigerants.

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Key Features:

• An inner box with a sealed top and bottom, featuring pillar walls exposed at the corners of the inner side walls to form an air gap with the outer box and ventilation holes.
• An outer box folded to the height of the inner box's pillar walls, wrapping around the inner box to create an air gap with its side walls.
• An intake vent formed on one of the inner box's side walls to allow cold air from a refrigerator to flow into the interior.
• An exhaust vent formed on the top panel of the inner box that creates a Seokbinggo effect by discharging warm air while retaining only cold air.

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