JP7083586B1 - Ice pack case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regain cooling capacity with ice or the like, which can be easily obtained even when going out, can be used for a long cooling time while sufficiently cooling the space to be cooled, and can be used for eating and drinking. Provide a cool ice pack case. SOLUTION: The cooling agent case includes a case main body 10A for accommodating the cooling means, and a plurality of through pipe portions 14, 14, ... Which have thermal conductivity and penetrate the upper part and the lower part of the case main body. Then, a plurality of through-pipe portions are cooled by the cooling means, and the cold air in the through-pipe portions is circulated by convection in the space to be kept cold while floating from the bottom of the space. [Selection diagram] Fig. 1

Description

The present invention relates to an ice pack case that houses ice and a pack of a cold pack (cooling agent) and keeps the contents of a cold container such as a cooler box, a cold bag, or a cold container cold.

It is desirable that the ice pack for keeping the beverages and foods in this type of cold storage cold for a long time, and it is difficult to refreeze the ice pack when going out, so it is easy to keep the ice pack cold. It is preferable to be able to procure a cooling means that can restore the effect.

Therefore, for example, in Patent Document 1, a cooling agent that suppresses heat absorption by reducing the surface of the heat absorbing portion of the enclosed exterior vinyl material without changing the content of the cooling agent and maintains the cooling effect for a long time. Is described.

Utility Model Registration No. 3198536 Gazette

However, even if the surface of the heat absorbing portion is reduced as in Patent Document 1, the cooling source is directly exposed to the outside air when the food or beverage in the cold storage container is taken out. Further, even if the cold insulation effect can be maintained for a long time, there is a limit, and there is a problem that it is difficult to obtain the cold insulation effect again when going out.

Therefore, the present invention has been made in view of the above circumstances, and the purpose of the present invention is to extend the cold insulation time, and when the cold insulation capacity is lost, obtain it on the go. The purpose is to provide an ice pack case that can cool the cold storage container again by procuring easy-to-use ice or cold water and storing it in the case.

The cooling agent case according to the present invention is formed of a lid and a storage box for accommodating cooling means, and has a case body that shields the cooling means from the outside air and prevents direct contact with the contents of the cooling container . It has thermal conductivity and is provided with a plurality of penetrating pipe portions penetrating the upper part and the lower part of the case body, and the plurality of penetrating pipe portions are cooled by the cooling means, and the cold air in the penetrating pipe portion is kept cold. The above-mentioned problem was solved by convection and circulation in the space of the above space while floating from the bottom of the space.

Further, the through pipe portion has a double structure, and the cooling means is filled between the inner through pipe and the outer through pipe to solve the above-mentioned problems.

Further, the outside of the through pipe portion is covered with a film, and the cooling means is filled between the through pipe portion and the film, thereby solving the above-mentioned problems.

In addition, the case body has a vacuum double structure, a hollow double structure, or a heat insulating structure made of a heat insulating material, thereby solving the above-mentioned problems.

Further, by further providing a heat insulating material provided on at least a part of the outside or the inside of the case body, the above-mentioned problems are also solved.

Further, the above-mentioned problems are also solved by further providing a device for suspending from the legs provided in the case body or the upper part in the space to be kept cold.

Furthermore, the cooling means also solved the above-mentioned problems by including any one of cold water, ice, dry ice, frozen beverages, and frozen ice packs.

Further, the cooling means is a cooling agent pack filled with a cooling agent, and the cooling agent pack has through holes arranged at positions corresponding to the plurality of through pipe portions, and the through holes are formed into the through holes. By penetrating a plurality of penetrating pipe portions, the above-mentioned problems were also solved.

In addition, the above-mentioned problem is also solved by further providing a dew condensation receiving portion provided at the lower portion in the case main body and receiving dew condensation on the inner walls of the plurality of through pipe portions.

Further, the case body has a double structure, and the cooling means is filled between the inner side wall portion and the outer wall portion, thereby solving the above-mentioned problems.

Further, the inner wall of the case body is covered with a film, and the cooling means is filled between the inner wall of the case body and the film, thereby solving the above-mentioned problems.

According to the ice pack case according to the present invention, the cooling means is sealed in the case body, the plurality of penetrating pipe portions penetrating the upper and lower parts of the case are cooled, and the cold air in the penetrating pipe portions is convected in the space to be cooled. By circulating the ice for a long time, the inside of the cold insulation container can be effectively cooled, and when the cold insulation capacity has deteriorated, if ice or the like is procured and stored in the case even when going out, the cold insulation effect can be obtained again.

Further, if the through pipe portion has a double structure, a cooling means is filled between the inner through pipe and the outer through pipe, and the cooling means in the cold insulation container is brought into contact with the cooling means, the cooling has a higher thermal conductivity than the air. By distributing the means to the entire through pipe portion, the air flowing inside the through pipe portion can be efficiently cooled.

Further, even if the outside of the through pipe portion is covered with a film and a cooling means is filled between the through pipe portion and the film, the same action and effect as the double structure can be obtained.

Furthermore, by making the case body a vacuum double structure, a hollow double structure, or a heat insulating structure formed of a heat insulating material, the cooling means suppresses the absorption of ambient heat and the cooling time is extended. can.

In addition, by providing a heat insulating material on at least a part of the outside or the inside of the case body, it is possible to suppress the cooling means from absorbing the ambient heat and prolong the cooling time.

Further, by providing a leg or a hanging device so that the case body can be deployed at an efficient position in the space to be kept cold, the space to be kept cold can be efficiently cooled.

Further, as the cooling means, cold water, ice, dry ice, frozen beverages, and frozen ice packs can be used. When ice or frozen beverages are used as cooling means, they can be eaten at the destination, and can be widely used especially in the outdoors.

In addition, if the through holes are arranged at positions corresponding to the plurality of through pipes, the ice pack can be used as the cooling means to efficiently cool the pipes.

Moreover, by providing a dew condensation receiving portion for receiving the dew condensation water droplets in the plurality of through pipes, it is possible to prevent the cold insulation target from getting wet due to the dew condensation water droplets.

Further, the cooling means filled between the inner side wall portion and the outer wall portion can cool the entire outer wall surface of the case body and cool the air in the space to be kept cold.

Further, the cooling means filled between the inner wall of the case body and the film can cool the entire outer wall surface of the case body and cool the air in the space to be kept cold.

Therefore, according to the present invention, it is possible to provide a cooling agent case that can be widely used, such as sufficiently cooling the space to be cooled, prolonging the cooling time, and easily recovering the cooling effect even when going out.

It is a perspective view which shows the structure of the ice pack case which concerns on 1st Embodiment of this invention. It is an exploded perspective view of the case where the exclusive ice pack is used as a cooling means in the ice pack case of FIG. 1 is a perspective view of the ice pack case of FIG. 1 as viewed from above, and a perspective view of the ice pack case as viewed from below. FIG. 3 is a cross-sectional view taken along the line XX'of FIG. It is a perspective view which shows the structure of the ice pack case which concerns on 2nd Embodiment of this invention. It is an exploded perspective view when the exclusive ice pack is used as a cooling means in the ice pack case of FIG. It is sectional drawing along the YY'line of FIG. It is external perspective view of the cold insulation container accommodating the cold insulation agent case. An example of use of the ice pack case is shown, and it is a perspective view which shows the state which the lid of the ice pack shown in FIG. 8 is opened. An example of another use of the ice pack case is shown, and it is a perspective view which shows the state which the lid of the ice pack shown in FIG. 8 is opened. It is an external perspective view of the cold insulation container of another structure which accommodates a cold insulation agent case, and is the perspective view which shows the state which opened the lid of the cold insulation container, and cut out the front. It is a perspective view for demonstrating the ice pack case which concerns on 3rd Embodiment of this invention. It is sectional drawing along the ZZ'line of FIG. It is a perspective view for demonstrating the modification of the ice pack case which concerns on 1st and 2nd Embodiment of this invention. It is a perspective view for demonstrating the ice pack case which concerns on 4th Embodiment of this invention. It is a perspective view for demonstrating the 1st application example of this invention. It is a perspective view for demonstrating the 2nd application example of this invention.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

1 to 4 each show an ice pack case according to the first embodiment of the present invention. FIG. 1 is a perspective view with the ice pack case open, FIG. 2 is an exploded perspective view when a cold pack is used as a cooling means, and FIG. 3 is a perspective view of the ice pack case viewed from above and a perspective view seen from below. FIG. 4 is a cross-sectional view taken along the line XX'of FIG.

As shown in FIG. 1, a case body 10A is formed by a plate-shaped lid portion 11A and a storage box 12A for accommodating cooling means. Then, the ice packs 13-1 and 13-2 (see FIG. 2) as cooling means housed in the case body 10A are shielded from the outside air, and the foods and beverages housed in the cold storage container are in direct contact with each other. It is preventing. As the cooling means, cold water, ice, dry ice, a frozen beverage, a frozen ice pack, or the like may be used.

A plurality of through pipes 14, 14, ... Penetrating the case main body 10A are erected in the storage box 12A. Through holes 14a, 14a, ... In the lid portion 11A at positions corresponding to these through pipes 14, 14, ..., Through holes 14b, 14b, ..., 14c, 14c in the cooling agent packs 13-1, 13-2. ... And through holes 14d, 14d, ... Are formed at the bottom of the storage box 12A, respectively, and through pipes 14, 14, ... Penetrate the lid portion 11A, the ice packs 13-1, 13-2, and the storage box 12A. is doing.

These through pipes 14, 14, ... Are not only materials with high thermal conductivity, for example, metals such as copper and aluminum (thermal conductivity 250 to 400 W / m · K), but also plastic materials such as acrylic and propolypyrene (heat). The conductivity may be about 0.2 W / m · K).

The through pipes 14, 14, ... Are to circulate the cold air in the through pipes 14, 14, ... cooled by the cooling agent packs 13-1, 13-2 by convection in the space to be cooled. .. In this example, the through pipes 14, 14, ... Are used having a length of about 10 cm, a pipe diameter of 5 mm to 25 mm, and a wall thickness of about 0.5 mm to 1 mm.

As shown in FIGS. 3A and 3B, the case body 10A has a rectangular parallelepiped shape (or a plate shape), and the appearance is such that the inner walls of the through pipes 14, 14, ... Can be seen from two facing surfaces of the case body 10A. Have. As a result, as shown in FIG. 4, a passage (indicated by arrow AA) for convection of the cold air in the through pipes 14, 14, ... In the space to be kept cold is formed.

According to such a configuration, since the ice packs 13-1 and 13-2 do not come into direct contact with the inner wall of the ice pack 20, foodstuffs, beverages, etc., it is possible to suppress the absorption of heat. As a result, the cold insulation time can be extended, and if the cold insulation capacity is exhausted, if ice or cold water that is easily available on the go is procured and stored in the case body 10A, the inside of the cold insulation container can be refilled. Can be cooled. Further, if the cooling means is ice or a frozen beverage, they may be eaten at the destination. This will also reduce the weight of the luggage on the way back.

In the experiment by the present inventor, a rectangular parallelepiped ice pack case with a vinyl chloride panel of 250 mm × 200 mm × 100 mm and a thickness of about 3 mm provided with 80 pipes having an inner diameter of 10 mm was used as a cooling means, and the temperature was 25 ° C. The ice did not melt so much even after 8 hours had passed in the cold storage container at room temperature, and it could be widely used, such as using the ice to cool the beverage at the destination.

5 to 7 show the ice pack case according to the second embodiment of the present invention, respectively. 5 is a perspective view with the ice pack case open, FIG. 6 is an exploded perspective view when a cold pack is used as the cooling means, and FIG. 7 is a cross-sectional view taken along the line YY'in FIG.

As shown in FIG. 5, the case body 10B is formed by the lid portion 11B and the storage box 12B for accommodating the cooling means. Insulating materials 11a, 11b, 11c, 11d, 11e made of styrofoam or the like are provided on the upper portion and the side surface of the lid portion 11B, and the heat insulating material 12a also made of styrofoam or the like is provided on the bottom of the storage box 12B. These heat insulating materials 11a, 11b, 11c, 11d, 11e, 12a insulate the ice packs 13-1, 13-2 (see FIG. 6) as cooling means housed in the case body 10B from the outside air. As the cooling means, cold water, ice, dry ice, a frozen beverage, a frozen ice pack, or the like may be used.

A plurality of through pipes 14, 14, ... Penetrating the case main body 10B are erected in the storage box 12B. Through holes 14a, 14a, ... In the lid portion 11B at positions corresponding to these through pipes 14, 14, ..., Through holes 14b, 14b, ..., 14c, 14c in the cooling agent packs 13-1, 13-2. Through holes 14d, 14d, ... Are formed in the storage box 12B, respectively, and the through pipes 14, 14, ... Are the lid portion 11B, the heat insulating material 11a on the upper surface thereof, and the cooling agent packs 13-1, 13-2. , And the insulation box 12B and the heat insulating material 12a on the bottom surface thereof.

These through pipes 14, 14, ... Are, of course, a material having a high thermal conductivity, for example, a metal such as copper or aluminum (thermal conductivity 250 to 400 W / m · K), as in the first embodiment described above. , Acrylic, propolypyrene, and other plastic materials (thermal conductivity of about 0.2 W / m · K) may be used.

The through pipes 14, 14, ... Allow the cold air in the through pipes 14, 14, ... Cooled by the cooling agent packs 13-1, 13-2 to be convected and circulated in the space to be cooled. In this example, the through pipes 14, 14, ... Are used having a length of about 10 cm, a pipe diameter of 5 mm to 25 mm, and a wall thickness of about 0.5 mm to 1 mm.

Also in this second embodiment, the case main body 10B has a rectangular parallelepiped shape (or a plate shape), and has an appearance in which the inner walls of the penetrating pipes 14, 14, ... Can be seen from two facing surfaces of the case main body 10B. As a result, as shown in FIG. 7, a passage (indicated by arrow AB) for convection of the cold air in the through pipes 14, 14, ... In the space to be kept cold is formed.

In the second embodiment, by covering the case body 10B with the heat insulating materials 11a, 11b, 11c, 11d, 11e, 12a, the ice packs 13-1, 13- as cooling means housed in the case body 10B. 2 can be more effectively insulated from the outside air, and the cold insulation time can be lengthened.

In the second embodiment, the entire surface of the case body is covered with a heat insulating material, but a part thereof may be covered.

Further, the case body may have a vacuum double structure, a hollow double structure, or a heat insulating structure formed of a heat insulating material. Even with such a configuration, it is possible to suppress the absorption of ambient heat by the cooling means and prolong the cooling time.

Alternatively, the case body may have a double structure and a cooling means may be filled between the inner side wall portion and the outer wall portion. The inner wall of the case body may be covered with a film, and a cooling means may be filled between the inner wall of the case body and the film. In these configurations, a liquid such as water or a cooling agent can be used as the cooling means to be filled.

The temperature of the filled water or ice pack is lowered from the inner wall side by contact with the ice pack or ice (cooling means) stored in the case body, and it is spread throughout the case body to cover the outer wall of the case body. Cool and cool the air in the space to be kept cold. It should be noted that the panels that make up the case body can be expected to bend, and even if the water between the panels freezes, it is unlikely to be damaged, and if air enters between the water and the panels, the efficiency of heat transfer will drop. Liquids such as water and ice packs should be fully filled.

Furthermore, if the through pipe portion is configured in a double structure and a cooling means is filled between the inner through pipe and the outer through pipe, the cooling means having a higher thermal conductivity than air can be distributed throughout the pipe portion. , The air circulating inside the pipe can be cooled efficiently.

Furthermore, even if the outside of the through pipe portion is covered with a film and a cooling means is filled between the through pipe portion and the film, the same effect as that of the double structure can be obtained.

Taking the case where the cooling means is block ice as an example, the penetrating pipe portion is cooled by direct contact with the ice, air cooled by the ice, or cold water when the ice melts over time. If ice or cold water comes into contact with the pipe, it has a stronger thermal conductivity than the air flowing inside the pipe, so it cools the inner wall of the penetrating pipe firmly, but the cooling power is weak at the part where they do not come into contact. The efficiency of the inner wall of the pipe is reduced.

Therefore, by forming the through pipe portion into a double structure and filling the space between the inner through pipe and the outer through pipe with water, the internal space of the inner through pipe can be cooled not only by heat conduction but also by convection.

The present inventor conducted the following experiments to confirm the cooling effect. Put an aluminum pipe or stainless steel pipe with an outer diameter of 12 mm and a wall thickness of 1 mm in a copper pipe with an outer diameter of 26 mm and a wall thickness of 1 mm (there is no need to make a large difference in the diameters of the inner and outer pipes). However, the diameter was different to observe whether it could be cooled even with a certain amount of water.) Several double pipes were made and filled with water between the pipes.

Then, when a few block ice pieces were brought into contact with the outer wall of the pipe part, the temperature of the water filled between the pipes could be lowered to about 1.5 ° C. .. Since both the upper side and the lower side of the pipe part could be lowered to almost the same temperature, it is considered that the fluid water was cooled not only by heat conduction but also by convection as a whole.

Looking at the reboil of the bath, the upper part becomes hot and the lower part becomes cold. Since water is said to have the highest density of about 4 ° C, colder water will go up at temperatures below that, but no difference in temperature was observed in this experiment.

In addition, the water temperature in the double pipe could be lowered to 2 ° C or less due to the partial contact of ice.

However, if the cooling means is dry ice or a sub-freezing type cold insulation pack, it may freeze, so the liquid such as water or ice pack filled between the inner through pipe and the outer through pipe should be used. It is advisable to take into consideration the increase of about 10% of the volume when frozen to prevent damage to the through pipe portion.

For the outer through pipe, not only materials with good thermal conductivity such as copper and aluminum, but also thin pipes or films such as plastics with slightly low thermal conductivity can lower the water temperature of the filled liquid. can.

In this way, water (about 0.58 W / m · K) and ice (2.2 W / m · K), which have a thermal conductivity several tens of times that of air, can be passed through the entire space between the inner through pipe and the outer through pipe. It is possible to efficiently cool the air flowing inside the through pipe portion by distributing the air to the inside of the through pipe portion.

FIG. 8 is an external perspective view of a cold insulation container 20 that houses a cold insulation case 11B (or a cold insulation case 11A, in the following description, the cold insulation case 11B is taken as an example, but the same applies to the cold insulation case 11A). .. FIG. 9 shows an application example of the ice pack case shown in the first and second embodiments, and shows a state in which the lid 21 of the ice pack 20 shown in FIG. 8 is opened. The ice pack case 11A (the case body containing the ice packs 13-1 and 13-2) is housed in a vertical cold box 20, and the PET bottle drink 22 and the canned drink 23 to be kept cold are housed in the lower part. Has been done.

In this state, the insides of the plurality of through pipes 14, 14, ... Are cooled, and the heavier cold air moves downward, so that convection is generated in the cold insulation container 20 as shown by the broken line arrow AC, and the PET bottle is used. The beverage 22 and the canned beverage 23 can be effectively kept cold.

Moreover, since the ice packs 13-1 and 13-2 are insulated from the outside air by the heat insulating materials 11a, 11b, 11c, 11d, 11e, 12a, the heat insulation of the surroundings is suppressed and the cooling time is shortened. You can make it longer. Further, since the ice packs 13-1 and 13-2 do not come into direct contact with the inner wall of the ice pack 20, foodstuffs, beverages, etc., it is possible to suppress the absorption of ambient heat from this point as well.

FIG. 10 shows another application example of the ice pack case, and is a perspective view showing a state in which the lid 21 of the ice pack 20 shown in FIG. 8 is opened. In this example, the leg portion 24 is provided in the ice pack case 10B, and the canned beverage 23 to be cooled is housed in the lower portion thereof. The leg portion 24 is for convection and circulating the cold air in the pipe portion in the space to be kept cold while floating from the bottom portion in the space. Even with such a configuration, the same effect as in the case shown in FIG. 9 can be obtained.

Instead of the legs 24, a device suspended from the upper part of the space to be cooled may be provided in the cold insulation container 20 or the ice pack case 10B.

FIG. 11 is an external perspective view of a cold storage container having another configuration for accommodating a cold storage agent case, and is a perspective view showing a state in which the lid of the cold storage container is opened and the front surface is cut out. In this example, the lid 26 is detachably provided above the horizontal cold insulation container 25. The ice pack case 10B is placed on the leg portion 24, and the canned beverage 23 to be cooled is stored in the lower portion thereof. Even with such a configuration, the same effects as those shown in FIGS. 9 and 10 can be obtained.

Further, instead of the leg portion 24, a device for suspending from the upper part in the space to be cooled may be provided on the lid 26.

12 and 13 are for explaining the ice pack case according to the third embodiment of the present invention, respectively, FIG. 12 is an exploded perspective view thereof, and FIG. 13 is along the ZZ'line of FIG. It is a cross-sectional view. Here, in order to make the internal structure easier to see, the upper surface of the lid portion 11B and the heat insulating material 11a, and the bottom surface of the storage box 12B and the heat insulating material 12a are removed.

In the third embodiment, dew condensation receiving portions 27, 27, ... For receiving water droplets dew on the inner wall of the penetrating pipe portion are provided on the outside of the penetrating pipe portion in the case main body 10B. The penetrating pipe portion is divided into two parts, an upper penetrating pipe 14-1, 14-1, ... And a lower penetrating pipe 14-2, 14-2, .... The lower part of the upper penetrating pipes 14-1, 14-1, ... Spreads like a trumpet, and the lowermost part of each upper penetrating pipe 14-1, 14-1, ... I'm touching above.

Then, the water droplets 28, 28, ... Condensed on the inner wall of the upper penetrating pipes 14-1, 14-1, ... are passed through the expanded portion of the upper penetrating pipes 14-1, 14-1, ... It is guided to the dew condensation receiving portions 27, 27, ... Between 14-2, 14-2, ..., Dropped and stored.

In this way, by providing the dew condensation receiving portions 27, 27, ... To receive the dew condensation water droplets on the inner wall of the through pipe portion, it is possible to prevent the contents in the cold insulation container from getting wet due to the dew condensation water droplets.

FIG. 14 is a perspective view for explaining a modified example of the ice pack case according to the first and second embodiments of the present invention. When ice, dry ice, water, beverages, ice packs, etc. are used as cooling means, the through pipes 14, 14, ... Are arranged around the storage box 12B (case body 10B) as shown in FIG. This makes it easier to store ice, frozen beverages, dry ice, and the like.

FIG. 15 is a perspective view for explaining the ice pack case according to the fourth embodiment of the present invention. In this example, the ice pack case is shaped like a PET bottle. Penetration pipes 14, 14, ... Are provided in the PET bottle-shaped case body 10C, and water, tea, juice, etc. are put in the case body 10C to freeze and use as a cooling means.

According to such a configuration, the case body 10C may be directly placed in the freezer and frozen, which improves usability. Further, the contained material can be used not only as a cooling means but also as a beverage.

In addition, a heat insulating material (not shown) that insulates the contained matter from the outside air may be provided on at least a part of the outside of the case body 10C. Further, although the case where the case body has a rectangular parallelepiped shape (or plate shape) and a pet boltle shape has been described, it may be a cube, a cylinder, a spherical shape, or another shape.

Further, although a cylindrical through pipe is used, it may be polygonal, elliptical, or rectangular.

The present invention is not limited to the first to fourth embodiments and modifications described above, and can be variously modified and implemented without departing from the gist.

For example, in each of the above-described embodiments, a case where the contents of a cold storage container such as a cooler box, a cold storage bag, or a cold storage container are kept cold has been described as an example, but as shown in FIGS. 16 and 17, a cold storage target has been described. As a space for, for example, it can be used for cooling the inside 30 of an automobile.

FIG. 16 shows a flat ice pack case 31, and FIG. 17 shows a vertical ice pack case 32. By installing the ice pack near the ceiling of the inside of the vehicle 30, cold air can be discharged downward. At this time, by leaving a little space from the ceiling, warm air can be replenished in the through pipe, and the cooling effect is enhanced.

As a result, it is possible to suppress the temperature rise in the vehicle interior 30 when the air conditioner cannot be used when the engine is stopped or when the engine is idling.

10A, 10B, 10C ... Case body 11A, 11B ... Covers 12A, 12B Storage boxes 11a, 11b, 11c, 11d, 11e, 12a ... Insulation materials 13-1, 13-2 ... Cooling agent pack 14 ... Through pipe 14a, 14b, 14c, 14d ... Through hole 14-1 ... Upper through pipe 14-2 ... Lower through pipe 20 ... Cold insulation container 21 ... Lid 22 ... Pet bottle beverage 23 ... Can beverage 24 ... Leg 25 ... Cold insulation container 26 ... Lid 27 ... Dew condensation receiving part 30 ... Inside the car 31 ... Flat ice pack case 32 ... Vertical ice pack case

Claims (11)

A case body formed of a lid and a storage box for accommodating cooling means, which shields the cooling means from the outside air and prevents direct contact with the contents of the cold storage container, and the case having thermal conductivity. A plurality of through pipe portions penetrating the upper part and the lower part of the main body are provided, and the plurality of through pipe portions are cooled by the cooling means, and the cold air in the through pipe portion is kept in the space to be cooled in the space. A cooling agent case characterized by convection and circulation from the bottom in a floating state. It is provided with a case body for accommodating cooling means and a plurality of through pipe portions having thermal conductivity and penetrating the upper and lower portions of the case main body. The through pipe portion has a double structure and is an inner through pipe. The cooling means is filled between the pipe and the outer through pipe, and the plurality of through pipe portions are cooled by the cooling means, and the cold air in the through pipe portion is floated from the bottom of the space in the space to be cooled. A cooling agent case characterized by being circulated by convection in a closed state . A case main body for accommodating the cooling means and a plurality of through-pipe portions having thermal conductivity and penetrating the upper and lower portions of the case main body are provided, and the outside of the through-pipe portion is covered with a film to penetrate the case. The cooling means is filled between the pipe portion and the film, and the plurality of through pipe portions are cooled by the cooling means, and the cold air in the through pipe portions is kept in the space to be cooled from the bottom portion in the space. Is a cooling agent case characterized by convection and circulation in a floating state . It is provided with a case body for accommodating cooling means and a plurality of through pipe portions having thermal conductivity and penetrating the upper and lower portions of the case body, and the case body has a vacuum double structure and a hollow double structure. Alternatively, it is a heat insulating structure formed of a heat insulating material, and the plurality of through pipe portions are cooled by the cooling means, and the cold air in the through pipe portions is floated from the bottom of the space in the space to be kept cold. A cold insulation case characterized by convection and circulation in a state of being convected . A case body that houses the cooling means, a plurality of through pipe portions that have thermal conductivity and penetrate the upper and lower parts of the case body, and a heat insulating material provided at least a part of the outside or the inside of the case body. The plurality of through-pipe portions are cooled by the cooling means, and the cold air in the through-pipe portions is circulated by convection in the space to be kept cold while floating from the bottom of the space. A cold insulation case featuring . The cooling agent case according to any one of claims 1 to 5 , further comprising a leg portion provided on the case body or a device for suspending from an upper portion in a space to be cooled. .. The ice pack case according to any one of claims 1 to 5 , wherein the cooling means includes any one of cold water, ice, dry ice, a frozen beverage, and a frozen ice pack. .. The cooling means includes a case body for accommodating the cooling means and a plurality of through pipe portions having thermal conductivity and penetrating the upper part and the lower part of the case body, and the cooling means is a cooling agent pack filled with a cooling agent. The ice pack has through holes arranged at positions corresponding to the plurality of through holes, and the plurality of through holes penetrate the through holes, and the plurality of through holes are penetrated by the cooling means. A cooling agent case characterized in that the through-pipe portion of the ice pack is cooled and the cold air in the through-pipe portion is circulated by convection in a space to be cooled while floating from the bottom of the space . A case body for accommodating cooling means, a plurality of through-pipe portions having thermal conductivity and penetrating the upper and lower portions of the case body, and a plurality of through-pipe portions provided in the lower portion in the case body. The inner wall is provided with a dew condensation receiving portion that receives water droplets dewed, and the plurality of through pipe portions are cooled by the cooling means, and the cold air in the through pipe portion is kept in the space to be cooled from the bottom of the space. A cooling agent case characterized by convection and circulation in a floating state . It is provided with a case body for accommodating cooling means and a plurality of through pipe portions having thermal conductivity and penetrating the upper part and the lower part of the case body. The case body has a double structure and has an inner side wall portion. The cooling means is filled between the outer side wall portion, and the plurality of through pipe portions are cooled by the cooling means, and the cold air in the through pipe portions is floated from the bottom portion in the space in the space to be cooled. A cooling agent case characterized by convection and circulation in a state of being convected . A case main body for accommodating cooling means and a plurality of through pipe portions having thermal conductivity and penetrating the upper and lower portions of the case main body are provided, and the inner wall of the case main body is covered with a film, and the case main body is covered with a film. A cooling means is filled between the inner wall of the pipe and the film, and the cooling means cools the plurality of through pipe portions, and the cold air in the through pipe portions is kept in the space to be cooled from the bottom of the space. A cooling agent case characterized by convection and circulation in a floating state .

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