JPS6349665Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is suitable for use in places without refrigeration equipment.
The present invention relates to cold storage cans (including heat storage cans) that are loaded into cold storage cabinets and the like for cooling foods, etc., or for keeping medicines, etc. cold.

In general, cold storage bodies used for cooling foods, medicines, etc., or cold storage, and generally easy-to-manufacture cold storage cans, are in a liquid or gas state at room temperature.
It is made by sealing a cold storage agent, which loses its heat and becomes solid or liquid when cooled, in a molded plastic container or an aluminum can, and is used by freezing it in an electric freezer, etc. be. However, because conventional cold storage cans are relatively small (250 c.c. cans), their cold storage heat capacity is small, and if a large amount of heat is required for business purposes, many cold storage cans must be used. It was a hassle. In addition, in order to obtain a predetermined amount of heat as an effective cold storage material, it is necessary to use a case that stores a large number of cold storage cans, or to bind a large number of cold storage cans with holding devices such as nets or belts. However, there were also drawbacks such as the can body being damaged or crushed during handling, and the strength of the can body being weak.

The present invention was made in view of the above-mentioned circumstances, and it is possible to manufacture a large-capacity cold storage body by making the body of the cold storage can large (approximately 1 to 3 cm), and to provide reinforcement that prevents deformation during molding of the can body. The present invention provides a cold storage can in which ribs, protrusions, or depressions are formed on the peripheral wall, etc., and the inside is filled with a cold storage agent and fiber-shaped heat transfer spacers to improve heat exchange efficiency and strength.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figures 1 and 2 are partially sectional front views of a cold storage can 1 showing the basic structure of the present invention. Fiber-shaped aluminum scraps with elasticity that swell to occupy a space larger than the internal volume of the can, steel wool,
A spacer 4 made of randomly mixed wire scraps and the like is compressed and filled together with a cold storage agent 3, and a lid 5 is wrapped around the top of the can body 2 to seal it.

The peripheral wall surface of the can container main body 2 is hard to deform,
First along the cylindrical peripheral wall to improve strength
As shown in the figure, an annular reinforcing rib 2a or a second
As shown in the figure, longitudinal reinforcing ribs 2b are integrally formed along the wall surface of the can main body 2 at predetermined intervals.

Further, the can container main body 2 is not limited to a cylindrical shape, but can have a shape of 3
As shown in the figure, the reinforcing ribs 2a or 2b may be manufactured in a rectangular shape, and the selection of the reinforcing ribs 2a or 2b is appropriately set according to the shape of the can main body 2.

Furthermore, as shown in FIG. 4, the bottom of the can container main body 2 and the lid 5 may be formed with reinforcing uneven parts 2c and 5a as needed, which not only increases the strength but also improves heat transfer. The spacer is always in contact with the inner surface of the can container body 2 without shifting or separating, increasing the heat exchange area and improving the heat exchange efficiency.

In addition to the reinforcing ribs 2a and 2b, protrusions or depressions that form partial unevenness may be formed.

Next, a method for manufacturing the cold storage can 1 of the present invention will be described in detail in accordance with the process order shown in FIG.

First, in step a, a plate material such as aluminum or stainless steel corresponding to the can container body 2 is punched out.
In step b, the first drawing process is performed. Next, in step c, the can is deep drawn to a predetermined depth by a second drawing process, and in step d, reinforcing ribs 2a or 2b at appropriate intervals are formed on the peripheral wall surface by predetermined beading or embossing. Container body 2
is formed.

Inside the can/container body 2 is a cool storage agent that is based on water or carbonated water and contains additives such as alcohol, glycol, ethylene glycol, polyethylene glycol, organic or inorganic salts such as sodium chloride, etc., depending on the melting point temperature. Along with 3, an appropriate amount of heat transfer spacer 4 such as aluminum scrap, steel wool, wire scrap, etc., which is larger than the volume inside the can and made into elastic fibers, is filled so as to be slightly compressed, and the lid is closed in step e. The cold storage body 1 is manufactured by attaching the body 5 by seaming or the like.

When sealing the can body 2 by tightening the lid 5, it is possible to prevent deformation and paneling of the can body 2 by filling a predetermined inert gas so that the internal pressure is higher than the external pressure. It also has the effect of preventing internal corrosion of the can container body 2 and lid body 5.

In addition, in the manufacturing process of the regenerator 1, the reinforcing ribs 2a or 2b formed on the peripheral wall surface of the can/container body 2 are formed so as to protrude from the inner surface of the can/container body 2, as shown in FIG. It can be designed as appropriate depending on various uses. Also, cold storage agent 3
In addition, it is also possible to fill a heat storage agent (organic fatty acids such as stearic acid, lard, margarine, etc.) with a melting point above room temperature, heat and melt it in advance, and use the latent heat of solidification to store heat. can.

As explained in detail above, according to the cold storage can according to the present invention, the can container main body is made large, predetermined reinforcing ribs are formed on the peripheral wall surface, and the inside includes a cold storage agent that is closely attached to the inner peripheral wall surface of the can. Since the structure is filled with fiber-shaped heat transfer spacers, it is possible to easily manufacture a large-sized cold storage can with a large capacity that does not reduce heat exchange efficiency, deform, or collapse.

In addition, the contact area between the can container body and the heat transfer spacer filled inside is large, and cooling and freezing operations before use are easy.

Furthermore, since it is large, the complexity of handling a large number of small-capacity cold storage cans depending on the location of use is eliminated, and it has practical effects such as high efficiency and greatly improved handling properties.

[Brief explanation of the drawing]

Figures 1 and 2 are partially sectional front views of the cold storage can showing the basic structure of the present invention, Figure 3 is a perspective view of the cold storage can showing other shapes according to the present invention, and Figure 4 is the main structure of the cold storage can. FIG. 5 is an explanatory view showing the manufacturing process of the cold storage can according to the invention, and FIG. 6 is a sectional view of the cold storage can showing another embodiment of the invention. 1...Cold storage can, 2...Can container body, 2a, 2b
... Reinforcement rib, 3 ... Cold storage agent, 4 ... Heat transfer spacer, 5 ... Lid body.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A can container body is formed by drawing a prescribed plate material, forming reinforcing ribs, projections, or depressions at appropriate intervals on the peripheral wall surface, and a prescribed cold storage area is formed in the can container body. A cold storage can characterized by being filled with a heat transfer agent and a fiber-shaped heat transfer spacer that tightly adheres to the inner circumferential wall of the can, and sealed by tightening the lid. (2) The fiber-shaped heat transfer spacer is an elastic body that swells to occupy a space larger than the internal volume of the can in a free state before being filled into the can, the scope of the utility model registration claim (1) cold storage can.