JPH06293367A - Structure of vacuum heat-insulating container - Google Patents

Abstract

PURPOSE:To reduce entire volume of a container in housing articles in the plural number therein, and to reduce the cost for producing such a container. CONSTITUTION:A plurality of inner containers 13 are arranged in an outer container 12, and thereby a container main body 11 with housing spaces 14, 15 in the plural number is formed and at the same time, curved parts 20, 21 for absorption of thermal deformation of the inner containers 13 are formed to the inner containers 13 on positions being offset each other from adjoining inner containers 13.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a vacuum heat insulation container for accommodating a plurality of objects while individually controlling the temperature.

[0002]

2. Description of the Related Art Conventionally, a heat insulating container for keeping heat and cold, such as a vacuum heat insulating container, comprises a container body having an inner and outer double structure made of a metal material, and an insulating lid is provided at an opening of the container body. . The interior of the container body has a double structure as a heat insulating space, and this heat insulating space is filled with a heat insulating material such as fibrous or powdery so as to keep the internal temperature of the heat insulating container constant.

As shown in FIG. 4, such a heat insulating container generally has a lateral opening 1 and a lid (not shown) provided therein, and the heat insulating container 2 of this type is efficient. In order to accommodate them, they are required to be stacked directly as shown in the figure or to be placed side by side in contact with each other. However, when a plurality of heat insulating containers 2 are combined and arranged, for example, the heat insulating wall temperature of the portion 3 where the containers 2 contact each other as shown in the figure becomes a value close to the internal temperature of the container. That is, when the inside of the container has a high temperature, the entire heat insulating wall of the contact portion 3 has a high temperature. As a result, the outer surface material of the container 2 at the contact portion 3 may buckle.

Therefore, in order to prevent buckling of the outer surface material,
As shown in FIG. 5, a member such as a pedestal 4 is separately provided, and as shown in the drawing, a gap 5 through which air can flow is provided around the container 2 to prevent the temperature of the heat insulating wall from rising.
However, for this reason, members such as the gantry 4 are costly, and the installation area is increased by the amount of the gantry 4.

Therefore, in order to eliminate such drawbacks, a heat insulating container having the structure shown in FIGS. 6 and 7 has been proposed. FIG. 6 is a cross-sectional view of the heat-insulating containers arranged in the upper and lower rows, and FIG. 7 is a perspective view of the heat-insulating containers arranged in the lower side of FIG. That is, two heat-insulating containers arranged side by side are formed with a concave portion 7 on the outer surface of one adjacent container body 6 and a convex portion 9 fitted on the concave portion 7 is formed on the outer surface of the other container body 8. There is. Then, by combining the concave portion 7 and the convex portion 9, the two containers are stably arranged, and the thermal deformation of the face material due to the temperature change of the portions where the containers are in contact is caused by the concave portion 7 or the convex portion 9.
To prevent buckling of the outer surface material.

[0006]

However, in the heat insulating container having the above-mentioned structure, when a plurality of heat insulating containers are arranged, two heat insulating walls overlap each other at the joint of the containers, and the heat insulating thickness is more than necessary. Not only that, but the exterior material is functionally unnecessary. Therefore, there is a problem that the volume of the arranged heat insulating container becomes large and the manufacturing cost of the heat insulating container becomes high.

The present invention is intended to solve the above-mentioned problems, and an object thereof is to reduce the volume of the entire heat insulating container when accommodating a plurality of objects and to reduce the cost when manufacturing the heat insulating container. Is.

[0008]

In order to solve the above-mentioned problems, the structure of the vacuum heat insulating container of the present invention is such that a plurality of inner containers are arranged inside an outer container, and the inner peripheral edges of the inner containers are adjacent to each other and the inner containers. By connecting the opening side peripheral edges of the outer container and the outer container, by forming a vacuum heat insulating layer between the inner container and the outer container,
It is characterized in that a container body having a plurality of storage spaces is formed, and a curved portion is formed in the inner container to shift the position of each adjacent inner container to absorb thermal deformation of the inner container.

[0009]

With the above structure, a plurality of inner containers are arranged inside the outer container to form a container body having a plurality of storage spaces, so that a plurality of objects can be separately provided in one vacuum heat insulating container. Since it can be stored while controlling the temperature, the installation space of the container can be reduced.

Further, since the inner container is provided with a curved portion for shifting the position of each adjacent inner container to absorb the thermal deformation of the inner container, the curved portion can absorb the thermal deformation of the inner container. Since it is possible to prevent the curved portions of one heat insulating wall from approaching each other and the thickness of the heat insulating wall at that portion becoming extremely thin, the heat insulating effect is not lost.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a vacuum heat insulating container according to an embodiment of the present invention, in which (a) is a horizontal sectional view and (b) is a vertical sectional view. The container body 11 of the vacuum insulation container 10 is an outer container made of a metal material.
By disposing two inner containers 13 inside 12 and connecting the opening-side peripheral edges of the inner container 13 and the opening-side peripheral edges of the inner container 13 and the outer container 12, two storage spaces 14, 15 Is configured. A vacuum heat insulating layer 16 is provided between the outer container 12 and the inner container 13 and between the inner containers 13, and the vacuum heat insulating empty layer 16 is filled with a heat insulating material 17. And
A heat insulating lid 19 with a flange is provided in each of the openings 18 of the storage spaces 14 and 15. In the container body 11, 2
The individual inner containers 13 are arranged in parallel, and the inner containers 13 are formed with curved portions 20 and 21 for absorbing thermal deformation of the inner containers 13, respectively. The bending portion 20 and the bending portion 21 are provided so that their positions are different for each inner container 13.

As described above, by arranging the two inner containers 13 inside the outer container 12 to form the vacuum heat insulating container 10 having the two storage spaces 14 and 15, one vacuum heat insulating member is obtained. container
Two objects in 10 can be stored separately while controlling the temperature.
As a result, the installation space of the container can be reduced as compared with the case where two containers having one storage space are arranged side by side. Further, since the heat insulating lid 19 is provided separately, it is possible to individually take in and put out objects. Further, since the inner container 13 is formed with the curved portions 20 and 21 that absorb the thermal deformation, the curved portions 20 and 21 can absorb the thermal deformation of the inner container 13. Furthermore, by providing the curved portions 20 and 21 at different positions,
Since the curved portion 20 and the curved portion 21 are prevented from approaching each other and the thickness of the heat insulating wall at that portion is prevented from being extremely thin, the heat insulating effect is not lost.

2A and 2B show a vacuum heat insulating container according to another embodiment of the present invention, wherein FIG. 2A is a horizontal sectional view and FIG. 2B is a vertical sectional view. Since the vacuum heat insulating container 22 of this embodiment has substantially the same structure as the vacuum heat insulating container of the embodiment shown in FIG. 1, the description of the members having the same structure and the same action will be omitted. The vacuum heat insulating container 22 of this embodiment is different from the vacuum heat insulating container of the embodiment shown in FIG. 1 in that three storage spaces 23, 24, 25 are provided above and below.

Also in the heat insulating container of this embodiment, like the heat insulating container of the embodiment shown in FIG. 1, three objects can be accommodated in and taken out from one vacuum heat insulating container while controlling the temperature separately. The installation place of can be reduced. Further, since the inner container is provided with the curved portions 20 and 21, and the positions of the curved portions 20 and 21 are shifted for each inner container, the curved portions 20 and 21 absorb thermal deformation of the inner container 13, and the curved portions 20 and 21 can be prevented from approaching.

As described above, width 400 mm, height 400 m
When installing three vacuum-insulated containers with m and depth of 800 mm and a heat insulation thickness of 50 mm and a heat insulation lid thickness of 150 mm, install one inner container of the same size and heat insulation of the same size. The installation volume can be reduced by about 7% as compared with the case where three vacuum heat insulation containers formed to have a thickness and a heat insulation lid thickness are closely attached to each other.

FIG. 3 shows a heat insulating container according to still another embodiment of the present invention, wherein (a) is a transverse sectional view, (b) is an AA vertical sectional view in (a), and (c). FIG. 4B is a vertical cross-sectional view taken along the line BB in (a). Since the heat insulating container of this embodiment also has substantially the same configuration as the heat insulating container of the embodiment shown in FIG. 1, description of members having the same configuration and the same action will be omitted. The heat insulating container 26 of this embodiment is different from the heat insulating container of the embodiment shown in FIG. 1 in that two storage spaces 27, 28, 29, 30 are provided in each of the upper, lower, left and right sides. is there. Further, R is provided at the corner portion of each inner container and the corner portion of the curved portion.

Also in the heat insulating container of this embodiment, as in the heat insulating container of the embodiment shown in FIG. 1, four objects can be stored and taken in and out separately in one vacuum heat insulating container while controlling the temperature separately. Installation places can be reduced. In addition, by arranging the curved portions 20 and 21 by shifting the position for each inner container,
The curved portions 20 and 21 absorb thermal deformation of the inner container 13,
It is possible to prevent the curved portions 20 and 21 from approaching each other. At this time, the R of the inner container and the curved portion can prevent the curved portions of the storage spaces 27 and 30 and 28 and 29 from approaching each other, so that the heat insulating effect can be maintained.

The curved portion is not limited to the structure shown in the drawing, and the curved portion is provided on the inner container as described in JP-A-4-341694 and JP-A-5-151748, and Inside, a structure provided with a heat insulating material and a deforming member that limits the deformation of this curved portion to a certain range, an inner container and an outer container,
It is also possible to use a configuration in which a member capable of absorbing deformation is connected.

[0019]

As described above, according to the present invention, since a plurality of storage spaces are formed in one vacuum heat insulating container, when a plurality of the same containers are used to obtain the same number of storage spaces. In comparison, the volume of the entire container can be reduced. The manufacturing cost of the heat insulation container is also low. At this time, if an openable and closable heat insulating lid is provided for each storage space, objects can be put in and taken out individually.

The thermal deformation of the inner container can be absorbed by the curved portion formed on the inner container. At this time, by disposing the position of the curved portion for each adjacent inner container,
Since the curved portions are prevented from approaching each other and the thickness of the heat insulating wall is prevented from becoming thin, the heat radiation loss from this portion when a high-temperature object is stored can be reduced.

[Brief description of drawings]

FIG. 1 is a cross-sectional view illustrating the structure of a heat insulating container having two storage spaces according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating the structure of a heat insulating container having three storage spaces according to another embodiment of the present invention.

FIG. 3 is a cross-sectional view illustrating the structure of a heat insulating container having four storage spaces according to still another embodiment of the present invention.

FIG. 4 is a cross-sectional view illustrating an arrangement of a conventional heat insulating container.

5 is a cross-sectional view illustrating a state in which the heat insulating containers of FIG. 4 are arranged using a gantry.

FIG. 6 is a cross-sectional view illustrating an arrangement of another conventional heat insulating container in which the outer surface material is provided with irregularities.

FIG. 7 is a perspective view of the heat insulating container arranged on the lower side in FIG.

[Explanation of symbols]

 10 Vacuum insulation container 11 Container body 12 Outer container 13 Inner container 14 Storage space 15 Storage space 16 Vacuum insulation layer 20 Curved part 21 Curved part

Claims (1)

[Claims] 1. A plurality of inner containers are arranged inside the outer container, and the opening-side peripheral edges of the inner container and the opening-side peripheral edges of the inner container and the outer container are connected to each other to form an inner container and an outer container. By forming a vacuum heat insulating layer in between, to form a container body having a plurality of storage spaces, in the inner container,
A structure of a vacuum heat insulating container, characterized in that a curved portion for absorbing thermal deformation of the inner container is formed by shifting the position of each adjacent inner container.