JPH0645816Y2 - Cold storage container - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field of the Invention The present invention keeps foods in a uniform temperature state by using a refrigerating container used for refrigerating foods, etc., for a relatively short time, particularly livestock cooling materials such as dry ice as a cold heat source. For example, the present invention relates to a cold storage container used as a cold roll box pallet for shipping.

2. Description of the Related Art Conventionally, as a cold storage container of this type, for example, JP-A-56-1
The type as shown in Japanese Patent No. 19475 is known.

That is, in this cold storage container, the inside of the container body is partitioned by a partition wall, a cold heat source storage chamber for storing a cold heat source such as dry ice is provided in the upper part, and a cold object such as food is stored in the lower part. A storage chamber is provided, and both chambers are thermally connected by a heat pipe.

On the upper surface of the bottom wall portion of the cold heat source storage chamber, the condensing portion of the heat pipe is arranged, by storing a cold heat source such as dry ice in the cold heat source storage chamber, the cold heat is passed through the heat pipe. It is designed to be efficiently transferred to the storage room.

Problems to be Solved by the Invention Such a cold-storage container is designed in advance so that the temperature inside the storage chamber becomes a predetermined temperature, and naturally the temperature cannot be appropriately adjusted according to the object to be cooled. For this reason, it is uneconomical to use a container according to each of the objects to be kept that have different storage temperatures.

Also, this type of container is designed under the condition that the outside temperature is constant, but in reality, the outside temperature fluctuates greatly throughout the year, and the outside wall temperature of the container causes the outside temperature to fluctuate. The amount of heat that penetrates into the fluctuates. For this reason, for example, if the temperature in the storage room is designed to be kept at 5 ° C under the condition that the outside temperature is 35 ° C in summer, the amount of heat entering from outside will decrease when the outside temperature decreases to 10 ° C in winter. As a result, the temperature in the storage chamber is much lower than the target set temperature of 5 ° C., and a supercooled state occurs, causing freezing of the objects to be kept cold. On the other hand, in the case of the one designed for the winter when the outside temperature is low, there is a disadvantage that the temperature of the storage room becomes too high in the summer when the outside temperature is high and the quality of the objects to be cooled deteriorates.

On the other hand, in order to avoid such an inconvenience, a valve mechanism is provided in the communication circuit between the condensing section and the evaporating section of the heat pipe to adjust the reflux amount of the working fluid, and the temperature in the storage chamber can be arbitrarily controlled by this valve operation. What has been done is proposed. However, not only does the structure become complicated and manufacturing costs increase, but it is difficult to control the temperature by adjusting the valve, and the hydraulic fluid may leak from the valve part, causing the heat pipe to malfunction. At present, it is the one that has and has not been put to practical use.

The present invention has been made in order to solve the above-mentioned problems, and an object thereof is to provide a simple cold-storage container having a structure in which the temperature in the storage chamber can be arbitrarily changed.

Means for Solving the Problems Thus, the present invention proposes that the cold heat from the cold heat source to be conducted to the condensing part of the heat pipe is connected to the cold heat source storage chamber at one end side and to the other end side. The temperature inside the storage chamber is controlled by restricting control through a heat-insulating laying material that can be bent between the two.

That is, the present invention is provided with a heat source storage chamber and a storage chamber, and is equipped with a heat pipe for thermally connecting the two chambers. The heat pipe condensing unit is provided on the upper surface of the bottom wall of the heat source storage chamber. While the storage container is provided with a heat-insulating laying material for restrictively controlling the conduction of cold heat of the cold heat source to the condensing part in the storage chamber, the laying material is once cold on the part side. The cold heat source can be directly placed on the condensing part and the installed state laid on the upper surface of the condensing part by being configured to be connected to the source housing chamber and be bendable between the other end side. As described above, a connecting member that is convertible between the stored state and a detachable connecting member is provided on the inner wall surface of the cold heat source storage chamber to maintain the stored state. The gist is a cold storage container characterized by.

Action A laying state in which a heat insulating laying material (7) for placing a cold heat source is laid on the condensing portion (H2) of the heat pipe (H) and the upper surface of the condensing portion (H2) and the condensing portion (H2). Since the cold heat source (D) can be exchanged between the storage state in which the cold heat source (D) can be directly placed, if the floor covering (7) is in the storage state, it can be used in the same manner as the conventional product. sell.

On the other hand, if the laying material (7) is laid on the condensing part (H2) of the heat pipe (H), the cold heat from the cold heat source (D) to the condensing part (H2) can be compared to the case where it is not laid. Limited conduction. Therefore, the amount of cold heat transferred into the storage chamber (B) through the heat pipe (H) is relatively reduced, and the temperature of the storage chamber (B) is set high. Thus, the temperature in the storage chamber (B) is appropriately set according to the thickness or material of the floor covering (7).

Embodiment Hereinafter, the invention will be described based on illustrated embodiments.

In the cold insulation container of the embodiment shown in FIGS. 1 to 3, the inside of the container body (1) is hermetically partitioned into a cold heat source storage chamber (A) at the upper rear and a storage chamber (B) at the lower part. The two chambers (A) and (B) are thermally connected by a heat pipe (H), and are movable by a caster (12) attached to the lower end of the main body (1).

The container body (1) is composed of a peripheral wall having a heat insulating property in which a heat insulating material (1c) such as foamed polyurethane synthetic resin is filled between an inner wall plate (1a) and an outer wall plate (1b). The front of this container body (1) is open,
A heat-insulating open / close door (3) having the same structure as the main body (1) is attached to the opening surface.

A front opening-shaped enclosing box body (2) that constitutes the cold heat source storage chamber (A) is fixed above the rear part of the container body (1), and an opening / closing door (4) is attached to the opening surface. ing. The bottom wall portion (2a) of the surrounding box body (2) is inclined downward from the front side to the rear side of the container body (1). Then, the inside of the main body (1) is partitioned by the box body (2), a cold heat source storage chamber (A) for storing a cold heat source (D) such as dry ice, and a food or the like under the cold heat source storage chamber (A). The storage room (B) for accommodating the object to be cooled (C) is formed to be hermetically sealed to each other.

And these two chambers (A) and (B) are heat pipes (H)
Are thermally connected by. This heat pipe (H)
As shown in FIG. 1, a vertical wall portion (P1) having a size substantially corresponding to the rear wall surface of the storage chamber (B) and a slightly rising slope which is continuous from the upper end of the wall portion (P1) by bending. The double-sided expansion roll bond panel (P) made of a flat plate made of aluminum and bent in an inverted L-shape in a side view and having excellent heat conductivity, which is composed of the upper wall (P2) set to It is provided. The panel (P) is provided with hollow portions (5) formed in a mesh-like or lattice-like circuit continuous from the vertical wall portion (P1) to the upper wall portion (P2), and the hollow portions (5) The working liquid is sealed under reduced pressure to form a heat pipe (H). The circuit formed on the vertical wall portion (P1) of this panel (P) constitutes the evaporation portion (H1), while the circuit formed on the upper surface wall portion (P1)
The circuit formed in 2) constitutes the condenser (H2).

As shown in FIGS. 1 and 2, the panel (P) has a vertical wall portion (P1) on the inner surface of the rear wall of the storage chamber (B) via a strip-shaped cushioning material (6). It is arranged so that the upper surface wall portion (P2) is fitted into the recessed portion (2b) formed in the upper surface of the bottom wall portion (2a) of the cold heat source storage chamber (A).

On the other hand, three heat insulating flooring materials (7), (7), (7) for mounting a cold heat source are arranged in the surrounding box body (2).

As shown in FIG. 3, the floor coverings (7), (7) and (7) are
Each of the two heat insulating sheet members (8) and (8) is foldably connected, and the attachment base portion (9) is provided at one end thereof.

The sheet member (8) (8) is a flexible foam synthetic resin sheet (8a) on which a reinforcing wire (8b) is arranged, and both sheet members (8) (8) It is foldably connected by a ring-shaped connecting member (10).

Thus, these floor coverings (7), (7) and (7) are arranged such that their respective mounting bases (9), (9) and (9) are overlapped with each other, and the rear wall of the box body (2) is It is fixed to the lower end of the part (2c) with screws. Further, hook-and-loop fasteners (11) are fixed to both the front end surfaces of the floor coverings (7), (7) and (7) and to the bottom wall portion (2a) and the top wall portion (2d) of the box body (2). The laying material (7) can be detachably connected to the adjacent laying material (7) and the box body (2).

Thus, as shown in FIG. 2, these laying materials (7) are laid so as to cover the upper surface of the bottom wall (2a) of the box (2) and the rear wall (2c) of the box (2). ) And the storage state along the inner peripheral surface of the upper wall portion (2d).

In this cold storage container, the heat insulating flooring materials (7), (7) and (7) are used at the rear wall portion (2) of the cold heat source storage chamber (A) during use.
If it is folded and stored along the inner peripheral surface of c) and the upper wall (2d), it can be used in exactly the same manner as a conventional cold storage container. In this state, the cold heat source (D) is in direct contact with the condensing part (H2) of the heat pipe (H), so the cold heat enters the storage chamber (B) through the heat pipe (H). It is rapidly transferred, and the inside of the chamber (B) is rapidly cooled.

On the other hand, when the cold heat source (D) is stored on the laying material (7) while the laying material (7) is laid on the bottom wall portion (2a) of the cold heat source storage chamber (A), the laying material ( 7) limits the conduction of cold heat from the cold heat source (D) to the condensing part (H2) of the heat pipe (H). Therefore, by increasing or decreasing the number of the laying materials (7) laid, the conduction of the cold heat is controlled, so that the temperature in the storage chamber (B) can be appropriately set and changed in four steps. There is.

The invention of the present application is not limited to the above-mentioned embodiment, and in short, as the laying material (7), one end side is connected to the cold heat source storage chamber (A) and can be bent between the other end side. By being configured, between a laid state in which it is laid on the upper surface of the condensing part (H2) and a stored state in which the cold heat source (D) is directly mounted on the condensing part (H2). Other than the above, as long as the connecting member (11) is detachably connected to the inner wall surface of the cold heat source storage chamber (A) so as to maintain the stored state. It is also possible to allow the design change of.

As the heat pipe (H), it is the most advantageous in terms of manufacturing and appearance design that the heat pipe (H) is made into a heat pipe panel as in the above-mentioned embodiment, but it is not limited to this and other For example, a pipe-on-sheet may be used, or a rod-shaped heat pipe may be used.

Effect of the Invention As described above, the cold storage container according to the present invention includes the cold heat source storage chamber and the storage chamber, and is equipped with a heat pipe that thermally connects these chambers, and the bottom of the cold heat source storage chamber is provided. Since the condenser portion of the heat pipe is arranged on the upper surface of the wall portion, the cold heat from the cold heat source stored in the cold heat source storage chamber is:
It is rapidly transferred into the storage chamber through the heat pipe to efficiently cool the chamber.

Moreover, a heat insulating laying material that restrictively controls the conduction of cold heat of the cold heat source to the condensing portion is provided in the cold heat source storage chamber, and the laying material has one end side connected to the cold heat source storage chamber and the other end. By being configured to be bendable between the condenser side and the side of the condenser, between the laid state in which it is laid on the upper surface of the condenser and the stored state in which the cold heat source can be directly placed on the condenser. It can be used in the same manner as the conventional product by putting the laying material in the stored state, and when it is laid down, it can be cooled and cooled compared to the case where it is not laid. The conduction of cold heat from the source to the condenser is limited. Therefore, the amount of cold heat transferred to the storage chamber via the heat pipe is also reduced, and the temperature of the storage chamber is set relatively high. Depending on the above, the temperature inside the storage chamber can be set to an arbitrary value by appropriately changing the laying material between the laid state and the stored state, so that the storage chamber can be set to a desired temperature under a constant outside temperature condition. In addition, it may be possible to maintain the temperature in the storage chamber at a constant value even under conditions of different outside temperatures. Therefore, each time an object to be cooled having a different suitable storage temperature is transported or stored, or when the outside air temperature is different, it is possible to deal with only one container without the need for a container suitable for each case as in the conventional case. So economical.

Further, as described above, the temperature control is performed by the heat-insulating laying material laid on the condensing part of the heat pipe, so that the structure is simple and the manufacturing cost is not increased, and there is a possibility of failure. Absent. Furthermore, since the heat insulating lining material is configured such that one end side is connected to the cold heat source storage chamber and is bendable between the other end side and the temperature control operation, the laying material is simply laid. It can be carried out extremely easily and surely by simply switching to the stored state. Moreover, the stored state can be easily held by a connecting member that is detachably connected to the inner wall surface of the cold heat source storage chamber.

[Brief description of drawings]

FIGS. 1 to 3 show an embodiment of the present invention. FIG. 1 is a partially cutaway perspective view showing a state in which an opening / closing door is opened, and FIG. 2 is a line II-II in FIG. FIG. 3 is an overall perspective view of the heat insulating flooring. (A) ... Cold heat source storage room, (B) ... Storage room, (H) ...
… Heat pipe, (H2) …… Condensing part, (2a) …… Bottom wall part, (7) …… Insulating laying material.

Claims (1)

[Scope of utility model registration request] 1. A cold heat source storage chamber (A) and a storage chamber (B), and a heat pipe (H) for thermally connecting these chambers (A) and (B) together. The condensing part (H2) of the heat pipe (H) is disposed on the upper surface of the bottom wall part (2a) of the accommodating chamber (A), while the cooling heat to the condensing part (H2) is provided in the accommodating chamber (A). A cold insulation container equipped with a heat-insulating laying material (7) for restrictively controlling the conduction of cold heat of the source (D), wherein the laying material (7) has one end in the cold heat source storage chamber (A). By being configured to be connected and to be bendable between the other end side, a laid state laid on the upper surface of the condensing section (H2) and a cold heat source (D) on the condensing section (H2). The inner wall surface of the cold heat source storage chamber (A) can be freely converted to and from a stored state in which it can be directly placed, and to maintain the stored state. Refrigerated container, characterized in that detachably stitched to the stitching member (11) is made is provided.