JPH0445015Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a cold storage plate used in a cold storage plate type refrigerator, which is a type of vehicle-mounted cooling container. This invention relates to the structure of a cold storage plate that freezes and uses a cold storage agent by sandwiching it.

(Prior Art) A conventional cold storage plate, as shown in FIG.
A pair of grooves 45 are provided in each of the surfaces 44 to form a through hole when the surfaces 44 are brought into contact with each other. The pipe 42 is sandwiched therebetween. Such a conventional example is described in, for example, Japanese Utility Model Application No. 62-34351.
Here, in the cool storage plate type refrigerator, the cool storage plate after freezing is placed inside the refrigerator to perform cooling. That is, the cold storage plate stores cold in advance, for example, by a heat exchange action from an evaporation pipe in a freezing circuit using commercial power at an article delivery base. While transporting the cool storage plate type refrigerator by truck, etc.,
The latent heat of fusion of the cold storage agent in the cold storage plate is used to cool the items inside the warehouse.

(Problems to be Solved by the Invention) However, the conventional cold storage plate described above has a problem in that the container swells when the cold storage agent is sealed in the container or when the volume expands due to freezing of the cold storage agent.

The objective of this invention is to improve the mechanical strength of containers.

(Means for Solving the Problems) The cold storage plate of the present invention consists of a pair of airtight containers, in which a cold storage agent is filled and an evaporation pipe is inserted between the pair of airtight containers to freeze the cold storage agent. In such a cold storage plate, a plurality of curved portions that are parallel to each other and convex toward the inside are provided at intervals in a predetermined area on the surface side of the airtight container, and the space between these curved portions is relatively protruding. It is characterized by being made into a section.

(Example) Embodiments of the present invention will be described with reference to the drawings.

As shown in Figure 1, the cold storage plate consists of a pair of rectangular and thin airtight containers (hereinafter simply referred to as containers) 1, 1.
A groove 20 for inserting the evaporation pipe 2 is provided on the joint surface of the container 1, and the container 1 is surface-bonded so as to be separable.

Grooves 13 are provided on the surface of the container 1 at both upper and lower ends for tightly fixing the containers 1, 1 with a fixing device such as a wire during molding. It is preferable to provide a plurality of grooves 13, as shown in the figure, in order to widen the selection range of fixing tools. An example of the fixture is shown in FIG.
On the other hand, tapers 14 are formed at both ends in the longitudinal direction so as to improve the flow when air is blown by a fan or the like and taper toward the ends. In addition, within a predetermined area of the surface, a plurality of curved portions 6 that are parallel to the longitudinal direction and convex toward the inside are provided at intervals, and as shown in FIG. The protruding portion 7 is formed relatively to. By doing this,
When the cool storage agent filled in the container 1 expands, the curved portion 6 can swell outward to absorb the expansion. Further, the large number of protrusions 7 have a function as a reinforcing portion to prevent the entire surface of the container 1 from bulging outward.

Furthermore, as shown in FIG. 2, in order to prevent the front and back surfaces of the container 1 from bulging due to the expansion effect when the cold storage agent freezes, the same portions 10 on the front and back surfaces are partially protruded into the container in a truncated conical shape. , the joining surfaces 12 when abutted are fixed by gluing, welding, or the like. This is done not only for one location but for multiple locations. Furthermore, in order to improve the adhesion between the containers 1 and 1, holes may be made in the joint surface 12 as shown in FIG. 4, and the containers may be fixed with bolts or the like. Note that since the container 1 is made by blow molding, a conical protrusion can be easily provided.

(Effects of the invention) As explained above, according to the invention, by providing a curved portion and a protruding portion relative to the curved portion on the surface of the container, it is possible to suppress the bulge of the container due to expansion of the cold storage agent, etc. can. Moreover, these irregularities increase the surface area of the container and improve the cooling efficiency.

[Brief explanation of the drawing]

FIG. 1 is a diagram of an embodiment of the present invention, in which FIG. a is a front view, FIG. b is a side view, FIG. The figure is B- in Figure 1.
FIG. 4 is an enlarged sectional view of another example of the reinforcing portion in FIG. 2, FIG.
The figure shows a perspective view of a conventional example in a separated state. DESCRIPTION OF SYMBOLS 1... Airtight container, 2... Evaporation pipe, 6... Curved part, 7... Projection part, 15... Cold storage agent.

Claims (1)

[Scope of utility model registration request] In a cold storage board, which is made up of a pair of airtight containers, filled with a cold storage agent and used by sandwiching an evaporation pipe between the pair of airtight containers to freeze the cold storage agent, a predetermined area on the surface side of the airtight container is used. A structure of a cold storage plate characterized in that a plurality of curved parts parallel to each other and convex toward the inside are provided at intervals in the region, and the spaces between these curved parts form relatively protruding parts. .