JPH037335Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention is a hot/cold container used to keep tableware etc. hot or cold for a relatively short period of time, especially in a car, an airplane, etc. The present invention relates to a simple heat-insulating/cold-insulating container used to keep food and drinks uniformly heated or cooled using a cold material as a heat source or cold source.

BACKGROUND TECHNOLOGY As shown in FIG. 6, this kind of heat-insulating/cold-insulating container known in the art is made by bending a metal plate with excellent thermal conductivity, such as an aluminum plate, into a U-shape or a U-shape to form a surrounding box. 11, and a shelf board 12 was appropriately arranged inside, and the object to be heated and the object to be cooled were placed thereon together with the heat storage material B or the storage material for cooling.

Problems to be Solved by the Invention However, in the conventional heat-insulating/cold-insulating container as described above, heat storage material B is transferred to the heated object A or the cooled object by heat transfer through the box body 11 and natural convection of internal air.
Or, because it only transmits heat from the cold storage material, the heat does not transfer well, especially when many items are stored inside. They had to be used individually and distributed internally. Moreover, even if this is done, there is still a problem in that it is difficult to exert a uniform heat-insulating/cooling effect on objects to be heated.

This invention aims to solve the above-mentioned problems by utilizing the heat pipe principle, and to provide a heat-insulating/cold-insulating container with even more uniform heating and cooling efficiency.

Means to Solve the Problem This idea consists of configuring the enclosing box itself as a flat heat pipe, so that the internal parts can be uniformly heated by radiant heat that is efficiently radiated from the wall surface of the enclosing box itself. It is designed to realize reinforcement and uniform cooling.

That is, this invention consists of an enclosing box body 1 having two opposing vertical side walls 2, 2 and a continuous horizontal end wall 3 between at least one end thereof,
The enclosing box body 1 has at least a heat pipe section 4a continuous from one vertical side wall 2 to a substantially central part of the horizontal end wall 3, and a heat pipe section 4a continuous from the other vertical side wall 2 to a substantially central part of the horizontal end wall 3. The gist of the present invention is a heat-insulating/cold-insulating container characterized in that it is constituted by a flat metal heat pipe having one or more pairs of heat pipe parts 4 each independent of a pipe part 4b.

Embodiment This invention will be explained in detail based on the embodiment shown in FIGS. 1 to 5.

The heat-insulating/cold-insulating container of this embodiment has two opposing vertical side walls 2, 2 by bending one flat heat pipe into a substantially U-shape or U-shape.
It consists of a three-sided wall type enclosing box body 1 having one horizontal end wall 3 continuous between one end thereof.

This enclosing box body 1 is divided into two parts at approximately the center of a horizontal end wall 3, each having vertical side walls 2 and 2.
A roll bond panel made of aluminum having a mesh-like or lattice-like hollow part 8 continuous from the horizontal end wall 3 to approximately the center part is used, and a working fluid such as water is injected into the hollow part 8 under reduced pressure. A pair of heat pipe parts 4a and 4b are formed by enclosing the heat pipe parts 4a and 4b.

Horizontal end wall 3 of both heat pipe parts 4a, 4b
As shown in FIG. 2, the end portions are formed into corrugated shapes corresponding to each other, and these are combined with each other.

Further, on the inner surfaces of both side walls 2, 2, shelf support frames 7, 7 each having an L-shaped cross section and for mounting and supporting the shelf board 6 in a manner that it can be taken in and out freely are fixed in a plurality of upper and lower stages in a facing manner.

When using the above-mentioned heat-insulating/cold-insulating container, for example, when it is used for heat-insulating purposes, the enclosing box body 1 is placed upright with the end wall 3 facing downward, as shown in FIG. With the lid plate 9 placed on the
put Then, a non-heated object A such as food is placed on each side plate 6 and housed in the box body 1.

Then, the heat from the heat storage material B heats the left and right heat pipe sections 4a, 4b at the lower end wall 3, causing evaporation of the internal working fluid. The generated steam is then directed upward to the side walls 2, 2 through the heat pipe portions 4a and 2, respectively.
4b, and in the process releases latent heat of vaporization, condenses, and heats the side walls 2,2.
Therefore, the non-heated objects A on the shelf boards 6 are heated uniformly and efficiently by the radiant heat from the side walls 2, 2.

In addition, when using it for cold storage, install it with the horizontal end wall 3 side up as shown in Figure 5.
The cold storage material B' is placed on the end wall 3 and used.
In this case, the heat pipes 4a and 4b move the cold heat in the opposite direction to the above case, and the object to be cooled A' inside the box body 1 is uniformly cooled by cooling radiation from the side wall 2. do.

In addition, in the above embodiment, the enclosing box 1 is U-shaped or U-shaped, having the horizontal end wall 3 only between one end of the vertical walls 2, 2.
A horizontal end wall may also be provided between the other ends of the vertical walls 2, 2. In this case, it is preferable that each heat pipe section 4a, 4b is configured to be continuous from the vertical walls 2, 2 to both end walls. Further, in the above embodiment, the flat heat pipe constituting the surrounding box 1 is connected to the pair of heat pipe parts 4a, 4.
Although the heat pipe section shown in FIG. In addition, the shelf board 6,
If it is composed of a flat heat pipe, it can be used as a device with even more excellent heat retention and cold retention efficiency.

Furthermore, the surrounding box 1 is most advantageous in terms of manufacturing and external design if it is constructed of a heat pipe using a roll bond panel as in the above embodiment, but it is not limited to this. For example, it may be constructed using a pipe-on-sheet, or it may be constructed using a flat hollow extruded member.

Effects of the invention As described above, this invention is a heat pipe in which the enclosing box body 1 having two opposing vertical side walls 2, 2 and a continuous horizontal end wall 3 between at least one end of the enclosing box body 1 covers almost the entire surface thereof. Since it is composed of a flat heat pipe having a section 4,
With a single heating source or cooling source placed at a suitable location, objects to be heated or cooled stored in the box 1 can be uniformly and efficiently heated or cooled by radiant heat from the inner surface of the box. Cooling and heating of contained articles simply rely on heat transfer and natural convection,
Compared to conventional products that perform cooling, it can achieve far superior uniform heating and cooling effects.

Furthermore, the heat pipe section 4 includes a heat pipe section 4a that is continuous from at least one vertical side wall 2 to a substantially central portion of the horizontal end wall 3, and a heat pipe section 4a that is continuous from at least one vertical side wall 2 to a substantially central portion of the horizontal end wall 3. Since the heat pipe portion 4b is divided into two parts and each is made independent, compared to a continuous heat pipe, the hollow part of each heat pipe portion 4a, 4b may Even if variations or differences occur in the cross-sectional area of the horizontal end wall 3, or if the horizontal end wall 3 is tilted due to a poor mounting angle during use or an inclination of the place of use, etc. Also, the working fluid does not repeatedly evaporate and condense in one of the heat pipe parts 4a or 4b, and the left and right heat pipe parts 4a, 4
b always operates evenly and maintains good heating and cooling effects, so reliability can be improved. Therefore, the tolerance range during manufacturing is increased, making manufacturing easier, and there is no need to particularly strictly compensate for the slope of the usage location during use, and the stored items can be heated and cooled uniformly at all times. And it can be done efficiently.

[Brief explanation of drawings]

Figures 1 to 5 show an embodiment of this invention. Figure 1 is a perspective view showing the state when used for heat insulation, Figure 2 is a bottom view of the same, and Figure 3 is a side view of the same. 4 is a sectional view taken along the line of FIG. 3, and FIG. 5 is a perspective view showing the state when used for cold storage purposes. FIG. 6 is a front view of a conventional product. DESCRIPTION OF SYMBOLS 1... Surrounding box body, 2... Vertical side wall, 3... Horizontal end wall, 4, 4a, 4b... Heat pipe part, A
...Object to be heated, A'...Object to be cooled, B...Refrigerated material,
B'...Animal cooling material.

Claims (1)

[Scope of utility model registration request] It consists of an enclosing box 1 having two opposing vertical side walls 2, 2 and a horizontal end wall 3 continuous between at least one end thereof, and the enclosing box 1 has at least one vertical side wall 2 extending from the horizontal end. The heat pipe section 4 includes one or more independent pairs of heat pipe sections 4, a heat pipe section 4a continuous to the substantially central part of the face wall 3, and a heat pipe section 4b continuous from the other vertical side wall 2 to the substantially central part of the horizontal end wall 3. A heat-insulating/cold-insulating container characterized by being constituted by a flat metal heat pipe.