JP2001082854A - Cold storage chamber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To permit the increase in heat transfer capacity of air and a heat transfer case to improve cooling performance by a method wherein a cold storage device is arranged in a heat insulating box body and cold storage members in contact with a cooling pipe constituting the cold storage device, are received in a heat transfer case while the heat transfer case is provided with cut-and-raised parts. SOLUTION: A cold heat storage device 4 is provided on the bottom part of a heat insulating box body 1 and is arranged so as to be contacted with cold storage members 6 formed of a cold storage agent, received in a cooling pipe 5, while the cold storage members are received in a heat transfer case 7. In this case, the box body of the heat transfer case 7 is formed of heat transfer plates 7a, 7b, constituted of a material having heat transferring property, such as aluminum or the like, while the heat transfer plates 7a, 7b are provided with cut-and-raised parts on the side surfaces of the same. According to this method, the surface area of respective heat transfer cases 7 is increased and the flow of air around the case becomes turbulent flow thereby improving heat transfer capacity of air and the heat transfer case 7 as well as the cooling performance of the cold storage chamber.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cool box for storing frozen or chilled foods and the like, and relates to a portable cool box mounted on a truck or the like.

[0002]

2. Description of the Related Art Conventionally, as a cool box used for transporting frozen or refrigerated foods, a cool storage unit is mounted on a movable heat-insulated cool box, and the inside of the cool box is kept at a low temperature for a long time. Is known. As this cool box, for example, as shown in Japanese Patent Application Laid-Open No. 9-273844, a cool storage agent stored in a bag is brought into contact with a cooling pipe connected to a refrigerator, and the cool storage agent is stored by the cooling pipe. Cool and store. When this regenerator is mounted in a cool box, the regenerators that are brought into contact with each other via a cooling pipe are housed in a heat transfer case made of aluminum or the like, and are installed at a predetermined interval from each other at the bottom of the refrigerator. . Then, the air in the refrigerator is circulated to each heat transfer case by a blower provided in the refrigerator, and the heat stored in the cool storage agent is cooled by cooling the air in the refrigerator through the heat transfer case. I have.

[0003]

However, in the above-mentioned conventional configuration, the heat transfer case is only large enough to store the regenerator, so that the heat transfer case cannot be made sufficiently large, and In addition, there is a problem that heat transfer of the heat transfer case is insufficient, resulting in insufficient cooling.

[0004]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention provides an insulating box forming a storage room, an insulating door capable of freely opening and closing a front opening of the insulating box, and a heat insulating box. The heat storage case accommodates a regenerator disposed inside and a regenerative member that is in contact with a cooling pipe constituting the regenerator, and has a structure in which cut-and-raised portions are provided.

[0005] With this arrangement, a cut-and-raised portion is provided to increase the surface area of the heat transfer case, and the wind flow becomes turbulent, so that the heat transfer capability between the air and the heat transfer case increases, thereby improving the cooling performance.

Further, the heat transfer case has a structure in which a concave portion is provided.

[0007] With this arrangement, a concave portion is provided to increase the surface area of the heat transfer case, the turbulence of the wind flow increases the heat transfer capability between the air and the heat transfer case, and improves the cooling performance.

Further, the heat transfer case has a structure in which a convex portion is provided.

[0009] Thus, by providing a convex portion, "the heat transfer case has a large surface area, and the flow of the wind becomes turbulent, so that the heat transfer capability of the air and the heat transfer case is increased, and the cooling performance is improved.

In addition, the structure is such that a fillet-shaped member is attached to the heat transfer case.

Thus, the fillet-shaped member is provided to increase the surface area of the heat transfer case, and the turbulent flow of the wind to increase the heat transfer capability between the air and the heat transfer case, thereby improving the cooling performance.

The heat transfer case is provided with a cut-and-raised portion, and the cut-and-raised portion of the adjacent heat transfer case is arranged alternately.

As a result, it is difficult to make contact with the cut-and-raised portion of the attached heat transfer case, and the cut-and-raised portion can be enlarged.
As the surface area of the heat transfer case increases, the flow of the wind becomes turbulent, and the heat transfer capacity of the air and the heat transfer case increases, thereby improving the cooling performance.

Further, the heat transfer case is provided with a concave portion, and the concave portions of the heat transfer case are alternately arranged, so that the gap between the heat transfer case and the heat transfer case is constant, so that the heat transfer case is fixed. Frost is evenly applied to the case, and the time required for clogging by the frost increases. In addition, the surface area of the heat transfer case increases, and the flow of the wind becomes turbulent, so that the heat transfer capacity of the air and the heat transfer case increases, thereby improving the cooling performance.

Further, the heat transfer case is provided with a convex portion, and the heat transfer case has a structure in which the convex portions of the heat transfer case are alternately arranged, so that a gap between the heat transfer case and the heat transfer case is fixed. The size of the heat transfer case can be evenly increased, and the time required for the frost to close the gap increases. In addition, the surface area of the heat transfer case increases, and the flow of the wind becomes turbulent, so that the heat transfer capacity of the air and the heat transfer case increases, thereby improving the cooling performance.

[0016] The fillet-shaped parts of the heat transfer case are attached to the heat transfer case, and the fillet-shaped parts of the heat transfer case are provided alternately. And the size of the fillet-shaped parts can be increased, the surface area of the heat transfer case increases, and the turbulence of the air flow increases the heat transfer capacity of the air and the heat transfer case, improving the cooling performance. .

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION
A heat insulating box forming a storage room, a heat insulating door for opening and closing a front opening of the heat insulating box, a cooler disposed inside the box, and a cold storage agent in contact with the cooler The heat transfer case for holding the regenerator has cut-and-raised portions, so that the heat transfer between the heat transfer case and the circulating air is improved and the cooling performance is improved.

According to a second aspect of the present invention, a concave portion is provided in the heat transfer case, which has an effect of improving heat transfer between the heat transfer case and the circulating air and improving cooling performance.

According to a third aspect of the present invention, the heat transfer case is provided with a convex portion, and has an effect of improving heat transfer between the heat transfer case and the circulating air and improving cooling performance. .

According to a fourth aspect of the present invention, the heat transfer case is provided with a fillet-shaped member, and the heat transfer between the heat transfer case and the circulating air is improved, and the cooling performance is improved. Have.

According to a fifth aspect of the present invention, a cut-and-raised portion is provided in the heat transfer case, and the cut-and-raised portion of the heat transfer case to be provided is arranged alternately. The heat transfer case and the circulating air have good heat transfer, which has the effect of improving the cooling performance.

According to a sixth aspect of the present invention, a concave portion is provided in the heat transfer case, and the concave portions of the adjacent heat transfer case are arranged alternately. The frost is evenly distributed on the heat transfer case, the time required for the frost to close the gap increases, the surface area of the heat transfer case increases, and the wind flow becomes turbulent. The heat transfer between the heat transfer case and the circulating air is improved by the frost, which has the effect of improving the cooling performance.

According to a seventh aspect of the present invention, the heat transfer case is provided with a convex portion, and the convex portions of the heat transfer case provided side by side are arranged alternately. Is constant, the protrusions can be enlarged, and the heat transfer case is evenly frosted, and the time for which the gaps are clogged by frost becomes long. Further, the surface area of the heat transfer case is increased, and the flow of the wind becomes turbulent, so that the heat transfer capability of the air and the heat transfer case is increased, and the cooling performance is improved.

According to an eighth aspect of the present invention, a fillet-shaped member is provided in a heat transfer case, and the fillet-shaped members of the heat transfer case are provided alternately. It is difficult to contact the fillet-shaped parts of the case, the fillet-shaped parts can be enlarged, the surface area of the heat transfer case becomes large, and the wind flow becomes turbulent, and the heat transfer capacity of the air and the heat transfer case increases. It has the effect of improving the cooling performance.

An embodiment of the cool box according to the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a side sectional view of a cool box according to Embodiment 1 of the present invention. FIG. 2 is a perspective view of a main part of the embodiment. FIG. 3 is a sectional view of a main part of the embodiment.

1, 2 and 3, reference numeral 1 denotes a storage room 2.
The heat-insulating box has a heat-insulating door 3 in which an opening on the front surface is openably and closably closed. A regenerator 4 is provided at the bottom of the heat insulating box 1.
Is provided. The regenerator 4 is arranged so that a regenerative member 6 containing a regenerator is brought into contact with a cooling pipe 5, and
Cool storage member 6 is housed in a heat transfer case. A plurality of these components are arranged at predetermined intervals. Above the regenerator 4, a heat insulating member 8 for partitioning the storage room 2 and the storage part of the regenerator 4 is arranged.

The cold storage member 6 is formed by storing a sol or gel cold storage agent in a bag made of vinyl or the like. Each heat transfer case 7 forms a box with a pair of heat transfer plates 7a and 7b, and is formed of a material having heat conductivity such as aluminum. The heat transfer plates 7a and 7b are provided with cut and raised sides. ing. Further, each heat transfer case 7 is sandwiched at its lower end side by a support plate 10 fixed to the substrate 9, and extends continuously in a meandering shape so as to be inserted through each heat transfer case 7. I have. The storage room 2 has an in-compartment fan 11, which communicates with the regenerator 4 through an in-compartment duct 12.

With respect to the cool box constructed as described above,
The operation will be described below.

When the refrigerant compressed by the refrigerator passes through the cooling pipe 5, the cold storage members 6 in each heat transfer case 7 are cooled, and the cold storage agent of the cold storage members 6 is frozen and stored. The storage 2 is cooled by circulating the air in the storage 2 and the regenerator 4 by the fan 11 in the storage.

As described above, the heat transfer plate 7 of each heat transfer case 7
By providing the cut-and-raised portions 14 in a and 7b, the surface area of each heat transfer case 7 increases, and the flow of the wind becomes turbulent, so that the heat transfer capability of the air and the heat transfer case 7 improves, thereby improving the cooling performance. I do.

(Embodiment 2) FIG. 4 is a sectional view of a main part of a cool box according to Embodiment 2 of the present invention.

In FIG. 4, each heat transfer case 7 forms a box with a pair of heat transfer plates 7c and 7d, and is formed of a material having heat conductivity such as aluminum.
The operation in which a plurality of concave portions are provided on the side surface of d is the same as that of the first embodiment.

As described above, the heat transfer plate 7 of each heat transfer case 7
By providing concave portions in c and 7d, the surface area of each heat transfer case 7 is increased, and the flow of wind becomes turbulent, so that the heat transfer capability of air and heat transfer case 7 is improved, and the cooling performance is improved.

(Embodiment 3) FIG. 5 is a sectional view of a main part of a cool box according to Embodiment 3 of the present invention.

In FIG. 3, each heat transfer case 7 forms a box by a pair of heat transfer plates 7e and 7f, and is formed of a material having heat conductivity such as aluminum.
The operation in which a plurality of convex portions are provided on the side surface of f is the same as that of the first embodiment.

As described above, the heat transfer plate 7 of each heat transfer case 7
By providing the projections at e and 7f, the surface area of each heat transfer case 7 is increased, and the flow of wind becomes turbulent, so that the heat transfer capability of air and heat transfer case 7 is improved, and the cooling performance is improved. .

(Embodiment 4) FIG. 6 is a sectional view of a main part of a cool box according to Embodiment 4 of the present invention.

In FIG. 6, each heat transfer case 7 forms a box with a pair of heat transfer plates 7g and 7h, and is formed of a material having heat conductivity such as aluminum.
h, a plurality of fillet-shaped members 13 formed of a material having heat conductivity such as aluminum are attached by welding, screwing, or the like, and the heat of the heat transfer plates 7 g and 7 h is reduced by the fillet-shaped members 13. It is designed to conduct heat efficiently.

The operation is the same as in the first embodiment.

As described above, the heat transfer plate 7 of each heat transfer case 7
By providing the fillet-shaped members 13 in g and 7h, the surface area of each heat transfer case 7 is increased, and the flow of wind becomes turbulent, so that the heat transfer capability of the air and the heat transfer case 7 is improved, and the cooling performance is improved. (Embodiment 5) FIG. 7 is a cross-sectional view of a main part of a cool box according to Embodiment 5 of the present invention. .

In FIG. 7, each heat transfer case 7 forms a box by a pair of heat transfer plates 7i and 7j, and is made of a material having heat conductivity such as aluminum.
Are provided with cut-and-raised portions 14, and the cut-and-raised portions 14 of the heat transfer plates 7i and 7j of the heat transfer case 7 are alternately arranged so as not to contact each other.

With respect to the cool box constructed as described above,
The operation will be described below.

When the refrigerant compressed by the refrigerator passes through the cooling pipe 5, the cold storage member 6 in each heat transfer case 7 is cooled, and the cold storage agent of the cold storage member 6 is frozen and stored. The storage 2 is cooled by circulating the air in the storage 2 and the regenerator 4 by the fan 11 in the storage.

As described above, the heat transfer plates 7 of each heat transfer case 7
By arranging the cut-and-raised portions of i and 7j alternately, the cut-and-raised portion 14 can be made larger, the surface area of each heat transfer case 7 becomes large, and the flow of wind becomes turbulent, and air and heat transfer (Embodiment 6) FIG. 8 is a cross-sectional view of a main part of a cool box according to Embodiment 6 of the present invention.

In FIG. 8, each heat transfer case 7 forms a box with a pair of heat transfer plates 7l and 7m, and is made of a material having heat conductivity such as aluminum.
A concave portion is provided on the side surface of the heat transfer case 7.
Of the heat transfer plates 7l and 7m are alternately arranged.

The operation is the same as in the fifth embodiment.

As described above, the heat transfer plates 7 of each heat transfer case 7
The gap between the heat transfer case and the heat transfer case can be made constant by alternately arranging the recesses of l and 7 m, and the heat transfer case 7 is uniformly frosted, and the time for which the gap is clogged with the frost is long. Become. Further, as the surface area of the heat transfer case 7 increases, the flow of the wind becomes turbulent, and the heat transfer capability of the air and the heat transfer case 7 improves, thereby improving the cooling performance. (Embodiment 7) FIG. It is principal part sectional drawing of the cool box in Embodiment 7 of invention.

In FIG. 9, each heat transfer case 7 forms a box with a pair of heat transfer plates 7n and 7o, and is formed of a material having heat conductivity such as aluminum.
A convex portion is provided on the side surface of
Of the heat transfer plates 7n and 7o are alternately arranged so as not to contact each other.

The operation is the same as that of the fifth embodiment.

As described above, the heat transfer plate 7 of each heat transfer case 7
By alternately arranging the cut and raised portions of n and 7o, the gap between the heat transfer case and the adjacent heat transfer case is constant, and the convex portion can be enlarged, and the heat transfer case 7 is uniformly frosted. The clogging time is longer. As the surface area of the heat transfer case 7 increases, the flow of the wind becomes turbulent, and the heat transfer capability of the air and the heat transfer case 7 increases, thereby improving the cooling performance.

(Eighth Embodiment) FIG. 10 is a sectional view of a main part of a cool box according to an eighth embodiment of the present invention.

In FIG. 10, each heat transfer case 7 forms a box by a pair of heat transfer plates 7p and 7q, and is formed of a material having heat conductivity such as aluminum.
A plurality of fillet-like members 13 formed of a material having heat conductivity such as aluminum are attached to the side surface of 7q by a method such as welding or screwing.
Is efficiently conducted to the fillet-shaped member 13, and the heat transfer plates 7p and 7q of the heat transfer case 7 attached therewith are provided.
Are arranged alternately so as not to contact each other.

The operation is the same as in the fifth embodiment.

As described above, the heat transfer plate 7 of each heat transfer case 7
By alternately arranging the fillet-shaped members 13 of p and 7q, it becomes difficult to make contact with the fillet-shaped components of the heat transfer case 7 provided side by side, the fillet-shaped components 13 can be made larger, and the surface area of the heat transfer case 7 becomes large. At the same time, the flow of the wind becomes turbulent, and the heat transfer capacity of the air and the heat transfer case 7 increases, thereby improving the cooling performance.

[0056]

As described above, according to the present invention, by providing the heat-transfer case with cut-and-raised portions, the surface area of each heat-transfer case becomes large, and the flow of wind becomes turbulent, and air and heat transfer The heat transfer capacity of the case is improved, and the cooling performance is improved.

Further, by providing the heat transfer case with a concave portion, the surface area of each heat transfer case is increased, and the flow of wind becomes turbulent, so that the heat transfer capability between the air and the heat transfer case is improved, and the cooling performance is improved. improves.

Further, by providing the heat transfer case with the convex portion, the surface area of each heat transfer case is increased, and the flow of the wind becomes turbulent, so that the heat transfer capability of the air and the heat transfer case is improved, and the cooling performance is improved. Is improved.

Further, by providing the heat transfer case with the fillet-shaped parts, the surface area of each heat transfer case is increased, and the flow of wind becomes turbulent, so that the heat transfer capability of the air and the heat transfer case is improved. Cooling performance is improved.

Further, by providing the cut-and-raised portions in each of the heat transfer cases and alternately arranging the cut-and-raised portions, the cut-and-raised portions can be made larger, the surface area of each of the heat transfer cases increases, and the flow of the wind becomes turbulent. The heat transfer capacity of the air and the heat transfer case is improved, and the cooling performance is improved.

Further, by providing recesses in the heat transfer plates of each heat transfer case and arranging them alternately, the gap between the heat transfer cases can be made constant, and the time for which the gap is clogged by frost can be extended. Become. In addition, the surface area of the heat transfer case is increased, and the flow of the wind becomes turbulent, so that the heat transfer capability of the air and the heat transfer case is improved, and the cooling performance is improved.

Further, by providing the heat transfer plates of each heat transfer case with convex portions and alternately arranging the heat transfer plates, frost is uniformly applied to the heat transfer cases, and the time for closing the gaps by the frost is also prolonged. As the surface area of the heat transfer case becomes larger, the flow of the wind becomes turbulent, and the heat transfer capacity of the air and the heat transfer case increases, thereby improving the cooling performance.

Further, by providing the heat transfer case with the fillet-shaped parts, and by arranging the fillet-shaped parts alternately, the heat transfer case is less likely to come into contact with the fillet-shaped parts of the heat transfer case attached to the heat transfer case. As the surface area of the case increases, the flow of the wind becomes turbulent, and the heat transfer capacity of the air and the heat transfer case increases, thereby improving the cooling performance.

[Brief description of the drawings]

FIG. 1 is a side sectional view of Embodiment 1 of a cool box according to the present invention.

FIG. 2 is a perspective view of a main part of a cool box according to the first embodiment of the present invention.

FIG. 3 is a sectional view of a main part of a cool box according to the first embodiment of the present invention.

FIG. 4 is a sectional view of a main part of a cool box according to a second embodiment of the present invention.

FIG. 5 is a sectional view of a main part of a cool box according to a third embodiment of the present invention.

FIG. 6 is a sectional view of a main part of a cool box according to a fourth embodiment of the present invention.

FIG. 7 is a sectional view of a main part of a cool box according to a fifth embodiment of the present invention.

FIG. 8 is a sectional view of a main part of a cool box according to a sixth embodiment of the present invention.

FIG. 9 is a sectional view of a main part of a cool box according to a seventh embodiment of the present invention.

FIG. 10 is a sectional view of a main part of a cool box according to an eighth embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 heat insulating box 2 storage 3 heat insulating door 4 regenerator 5 cooling pipe 6 cold storage member 7 heat transfer case 8 heat insulating member 9 substrate 10 support plate 11 internal fan 12 internal duct 13 fillet-shaped member 14

Claims (8)

[Claims] An insulating box forming a storage room; an insulating door for opening and closing a front opening of the insulating box; a cooling pipe disposed inside the box; and the cooling pipe. A cold storage, characterized in that a cut-and-raised portion is provided in a heat transfer case for storing a cold storage agent and a cold storage agent that is in contact with the cold storage agent. 2. The cool box according to claim 1, wherein a concave portion is provided in the heat transfer case. 3. The cool box according to claim 1, wherein the heat transfer case is provided with a convex portion. 4. The cool box according to claim 1, wherein a fillet-shaped member is attached to the heat transfer case. 5. The cold storage according to claim 1, wherein cut-and-raised portions are provided in the heat transfer case, and the cut-and-raised portions of the adjacent heat transfer case are arranged alternately. 6. The cold storage according to claim 1, wherein the heat transfer case is provided with a concave portion, and the concave portions of the adjacent heat transfer case are arranged alternately. 7. The refrigerator according to claim 1, wherein the heat transfer case is provided with a convex portion, and the heat transfer case is provided such that the convex portions of the heat transfer case are alternately provided. 8. The cold storage according to claim 1, wherein the heat transfer case is provided with a fillet-shaped member, and the fillet-shaped members of the heat transfer case are arranged alternately.