JP2554720Y2 - Insulated transport container - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated transport container for cooling and transporting fresh food products while maintaining freshness.

[0002]

2. Description of the Related Art Conventionally, fresh foods such as fresh fish have generally been transported together with a cooling agent such as ice in a heat insulating container.

In order to maintain the freshness of fresh food products, it is known that it is most preferable to maintain them at a temperature of usually about -1 to -3 ° C.

[0004]

In the above-mentioned insulated container, when ice is used together with fresh food, the temperature of the ice is 0 ° C., so that the temperature of the ice is higher than the holding temperature of the fresh food. Since the cooling effect is small, freshness cannot be sufficiently maintained.

[0005] Also, the use of cryogenic coolants such as dry ice causes the perishables to be excessively cooled and frozen, resulting in reduced freshness.

[0006] It is possible to maintain the proper temperature by using an appropriate cold storage material according to the holding temperature of the fresh food, but the cold storage material is expensive and maintains the cooling effect for a sufficiently long time. It is difficult.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an insulated transport container capable of maintaining perishable foods or the like at an appropriate temperature for a long time without excessive cooling. It is assumed that.

[0008]

According to the present invention, an inner insulating container having a larger heat transfer amount than the outer insulating container is accommodated in the outer insulating container. And a gap for accommodating the coolant is formed.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

[0010] Figure 1, there is shown an embodiment of the present invention, 1 is the outer heat-insulating container, 2 is <br/> inside heat-insulating container. The outer heat-insulating container 1 and the inner heat-insulating container 2 each include a main body 3, 4 and a lid 5, 6, and the inner heat-insulating container 2 is accommodated in the outer heat-insulating container 1 via a spacer 10. .

The outer heat-insulating container 1 and the inner heat-insulating container 2 are both made of a material having heat insulating properties. As the heat insulating material, a foam of polyurethane or polystyrene, or a metal vacuum double bottle structure is used.

In the embodiment of FIG. 1, the outer heat-insulating container 1 has a foamed polyurethane 8 inside a plastic jacket 7.
The inside heat-insulating container 2 is made of expanded polystyrene.

The outer heat-insulating container 1 has higher heat insulation than the inner heat-insulating container 2. That is, the amount of heat transferred through the wall of the inner heat-insulating container 2 is larger than that of the outer heat-insulating container 1.

As means for varying the amount of heat transfer between the outer heat insulating container 1 and the inner heat insulating container 2, the material of the outer heat insulating container 1 and the material of the inner heat insulating container 2 can be changed. Also, the heat transfer amount can be adjusted by changing the thickness of both. Further, the amount of heat transfer can be adjusted by using a metal vacuum double bottle as the outer heat insulating container 1 or by forming a small hole for increasing the amount of heat transfer on the inner wall of the inner heat insulating container 2. can do.

A gap 9 for accommodating a coolant is formed between the outer heat insulating container 1 and the inner heat insulating container 2 in the upper, lower, and outer peripheral portions. Further, as shown in the embodiment of FIG. 1, a gap 11 may be formed on the lower surface of the lid 5 of the outer heat-insulating container 1, and a coolant may be stored therein.

[0016]

According to the present invention, an object to be transported such as fresh food is accommodated in the inner insulating container 2 and the inner insulating container 2 is provided.
Is accommodated in the outer heat-insulating container 1, and a gap 9 between the outer heat-insulating container 1 and the inner heat-insulating container 2 is filled with a coolant such as dry ice. Further, the coolant may be filled in the gap 11 formed in the lid 5 of the outer heat insulating container 1.

In this state, when the heat-insulating transport container of the present invention is transported, the cool air generated from the coolant during that time is filled between the outer heat-insulating container 1 and the inner heat-insulating container 2.

Then, the cool air enters the inner heat insulating container 2 through the inner wall of the inner heat insulating container 2 and cools the contents.

However, since the inner heat-insulating container 2 has heat insulating properties, the infiltration of cold air is slow, the contents are gradually cooled, the contents are cooled excessively, and the contents are not frozen and kept at a suitable temperature. Is done.

On the other hand, the outer heat-insulating container 1 retains the cool air inside due to its heat insulating property, but the heat insulating property is not 100%, the cool air gradually leaks to the outside, and the internal coolant is consumed.

As a whole, since the inner heat-insulating container 2 has a lower heat-insulating property than the outer heat-insulating container 1, the cooling air first enters the inner heat-insulating container 2 at a high speed , and cools the transported object. The rate of leakage from the heat insulating container 1 to the outside is low,
It can be kept cool for a sufficiently long time.

Even after the coolant has been exhausted, the transported object is covered with the double heat insulating container of the inner heat insulating container 2 and the outer heat insulating container 1, so that the temperature rapidly rises. Does not rise and is kept cool for a considerable period of time.

[0023]

According to the present invention, therefore, in transporting perishable foods and the like, the goods to be transported are kept at an appropriate temperature for a long time without being excessively cooled and maintained in a fresh state. Can be transported while maintaining.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view of the insulated transport container of the present invention.

[Explanation of symbols]

 1 outer heat insulating container 2 inner heat insulating container 9,11 gap

Claims (1)

(57) [Scope of request for utility model registration] 1. An outer heat-insulating container (1) containing an inner heat-insulating container (2) having a larger heat transfer amount than the outer heat-insulating container (1). A gap (9, 11) for containing a coolant is formed between the heat-insulating container (2) and the heat-insulating container (2).