JPS645736Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a cold storage container in which a cold storage agent is filled and sealed between the inner and outer metal containers.

As shown in FIG. 1, a conventional cold storage container of this type includes a deep-drawn inner container 1 made of, for example, an aluminum alloy.
and outer container 2 are joined or tightened by flanges 4, 4 at the respective openings with an interval of 3 on the bottom and circumferential surfaces to form a sealed double container, and cool storage is carried out in the sealed space 3. It has a structure in which the agent 5 is filled and sealed. In this case, the cold storage agent 5 may contain, for example, alcohol based on water or carbonated water.
Organic or inorganic compounds such as glycol, ethylene glycol, and sodium chloride, as well as organic thickeners added in necessary amounts to achieve the desired viscosity, are used, and the melting temperature is within the range of -7°C to -17°C. It has been adjusted.

When using the conventional cold storage container configured as described above, when the cold storage agent 5 freezes, due to the temperature difference between the upper and lower sides, as shown in FIGS. The last part freezes. Moreover, the freeze expansion in this case is about 9% expansion, so as shown by the imaginary line in Figure 4, there is a disadvantage that the bottom part is deformed due to the concentrated force of freeze expansion. There was an inconvenience that it took a long time.

This idea was made with the intention of solving the above problem, and its purpose is to reduce the concentration of freezing and expansion at the bottom by making the heat distribution uniform above and below the cool storage agent. This system prevents expansion and deformation of the bottom part and allows the cold storage agent to be frozen in a short time.The main points are as follows:
While the inner and outer containers face each other, a fin is loaded, at least a part of which touches the outer wall of the inner container, and the upper edge openings of these inner and outer containers are joined or rolled to form a double container. It is an object of the present invention to provide a cold storage container in which a sealed space is filled with a cold storage agent.

Examples of this invention are shown below in Figures 5 to 20.
This will be explained based on the diagram.

FIG. 5 is a sectional view of the main parts of the first embodiment of the cold storage container of this invention, and the structure of the main parts of the cold storage container, that is, the inner container 1, the outer container 2, the cold storage material 5, etc., is the same as the conventional one. Therefore, the same parts are denoted by the same reference numerals, and the explanation thereof will be omitted here. In this case, by loading, for example, aluminum fins 6 with high thermal conductivity between the opposing side walls 1a and 2a of the inner container 1 and outer container 2, it is possible to uniformly distribute the heat above and below the cool storage agent 5. It is set as. In this case, the fins 6 are not necessarily attached to the side walls 1 of the inner and outer containers 1 and 2.
a, 2a, as shown in FIG. 6, as long as the structure is such that it contacts at least the outer wall of the inner container 1, the temperature of the cool storage agent 5 when frozen can be applied to the inner container 1. can be communicated to.

The fin 6 is formed by forming a continuous triangular corrugated plate 6a in a cylindrical shape as shown in FIGS. 8 and 9, and is loaded between the inner and outer containers 1 and 2 facing each other (see FIG. 7). Alternatively, continuous arc-shaped corrugated plates 6b as shown in FIGS. 10 and 11 are similarly formed into a cylindrical shape and loaded between the inner and outer containers 1 and 2 facing each other. Furthermore, the fins 6 do not necessarily have to be continuous corrugated plates 6a and 6b. For example, triangular or arcuate piece-like fins 6c and 6d as shown in FIG. It may come into contact with the wall. In this case, as shown in FIG.
c, 6d or by using an aluminum brazing sheet 8 clad with a brazing filler metal 7 in advance on the inner container 1, and by brazing with a brazing filler metal containing KF and AlF ₃ -based flux, a cylindrical inner container 1 can be formed. The outer wall of the fins 6c and 6d can be easily joined without cleaning the joint portions of the fins 6c and 6d, and corrosion of the joint portions can be avoided.

FIGS. 15 and 16 show another form of the fins in this invention, in which the heat distribution of the cool storage agent 5 is further improved. That is, by forming the fins 6 with continuous porous corrugated plates 6e and 6f having a large number of small holes 9 for the flow of the cool storage agent 5, the heat distribution of the cool storage agent 5 can be improved. Furthermore, flat portions 10, 10, . If it touches the outside wall,
It is possible to further increase the contact area with the inner container 1 and improve the cooling efficiency.

In addition, in the above embodiment, the continuous corrugated plates 6a, 6
b, 6e, and 6f are loaded along the circumferential direction of the inner and outer containers 1 and 2, but it is not necessarily necessary to load them in the circumferential direction. For example, as shown in FIG. The fins 6 may be loaded along the same line.

FIG. 19 shows still another embodiment of this invention, in which bottom walls 1b and 2b of the inner and outer containers 1 and 2 are shown.
Even in between, at least the bottom wall 1b of the inner container 1
This is a case where a fin 6' is loaded, a part of which is in contact with the fin 6'. In this case, the fins 6' are, for example, disc-shaped corrugated plates 6g as shown in FIG.
It is needless to say that the shape is not limited to this, and it may be a piece-like fin or a fin with holes as described above.

As explained above, the cold storage container of this invention is equipped with fins that are at least partially in contact with the outer wall of the inner container between the metal outer container and the inner container, and these fins are installed between the inner and outer containers. The upper edge openings are joined or rolled together to form a double container, and the sealed space is filled with a cold storage agent, so the heat distribution above and below the cold storage agent can be made uniform. As a result, it is possible to alleviate the concentration of freezing and expansion on the bottom and prevent expansion and deformation of the bottom. Moreover, it is possible to freeze the cold storage agent in a short time, and to efficiently control the cooling temperature of the frozen cold storage agent. Its utility value is remarkable because it can provide excellent effects such as being able to transmit the heat well to the inner container and cooling objects to be cooled, such as ice cream ingredients in the inner container.

[Brief explanation of the drawing]

Fig. 1 is a vertical sectional view of a conventional cold storage container, Figs. 2 to 4 are sectional views of main parts showing the frozen state of the cold storage agent in the conventional cold storage container, and Fig. 5 is a first part of the cold storage container of this invention. FIG. 6 is a vertical cross-sectional view of the main parts showing the second embodiment of this invention, and FIG. 7 is a partially cutaway perspective view showing an example of the loading state of the fins in this invention. Figures 8 through 11 are perspective views of the unfolded state and the used state, respectively, showing another form of the fin in this invention, and Figs. 12 and 13 respectively show another form of the piece-like fin in this invention. FIG. 14 is a sectional view showing a brazing sheet used for joining piece-like fins, FIGS. 15 to 17 are perspective views showing still another form of the fin in this invention, and FIG. The figure is a longitudinal sectional view showing a third embodiment of this invention, FIG. 19 is a longitudinal sectional view showing a fourth embodiment of this invention, and FIG. 20 is a perspective view showing an example of the fin in the fourth embodiment. . In the figure, 1...Inner container, 2...Outer container, 3
...Gap, 4...Flange part, 5...Cold storage agent,
6, 6'...fin, 6a, 6b, 6e, 6f,
6g... Corrugated plate, 6c, 6d... Piece-shaped fins,
7...brazing metal, 8...brazing sheet, 9...
...Small hole, 10... Flat part.

Claims (1)

[Claims for Utility Model Registration] 1. Between a metal outer container and an inner container facing each other, a fin is loaded, at least a part of which abuts on the outer wall of the inner container, and the upper edge openings of these inner and outer containers are A cold storage container that is made by joining or wrapping together to form a double container, and filling the sealed space with a cold storage agent. 2. The cold storage container according to claim 1, which is a registered utility model, and comprises a fin, at least a part of which is in contact with the inner container, between the bottom walls of the inner and outer double containers. 3. The cool storage container according to claim 1 or 2, wherein the fins are continuous corrugated plates. 4. The cool storage container according to claim 1 or 2, wherein the fins are continuous corrugated plates having pores. 5 Claims 1 or 2 for utility model registration, in which the inner container or fins are brazing sheets
Cold storage container as described in section.