JPH0754140Y2 - Insulation container - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] To be used as a heated article, for example, as an aircraft container for storing food that has been heated before being carried on board The present invention relates to a heat insulation container capable of

[Prior Art] Usually, as a container for storing food or the like in a heated state, a container that heats electricity at a proper time to maintain the temperature,
Or the thermos type is often used.

[Problems to be Solved by the Invention] However, when carrying such a container in an aircraft, an object to be energized as described above may cause an accident. Therefore, the food container for aircraft is heated before being brought into the aircraft, and cannot be heated in the aircraft due to the nature of the aircraft. Therefore, it is required to keep the preheated one as long as possible, but in the above-mentioned thermos type, the container becomes too large as compared with the content in (a). (B) If the bottle material is glass, there is a risk of breakage due to changes in atmospheric pressure, impact, etc. (C) It is not practical because there are inconveniences such as that the heat insulating material alone has a short heat insulating time and is not practical.

[Means for solving problems]

In order to solve the above problems, the heat insulation container of the present invention is
It is composed of a container body and a lid, and the container body and the lid are each made of a material such as polypropylene that forms the innermost layer, and has a box shape for storing an object to be kept warm. A body, an alumina ceramic layer attached to the outside of the box-shaped body, a reflecting metal plate attached to the outside of the alumina ceramic layer, and a heat insulating material layer external to the metal plate layer. It was done.

[Operation] Since the present invention is configured as described above, the alumina ceramic layer radiates the heat of the contents housed in the inner box-shaped body to reduce the heat radiation, and the reflection metal plate layer Thus, the radiating action of the alumina ceramic layer can be made constant so as to be directed only to the inside, and the radiation to the outside can be reduced, and further, the heat release from the container can reduce the heat radiation from the container.

[Embodiment] An embodiment of the heat insulating container of the present invention will be described below with reference to the drawings.

FIG. 1 is an overall view of the heat-retaining container 1, which is composed of a container body 2 and a lid 3, which are a cross-sectional view of FIG. 1, a perspective view of the body 2 of FIG. As shown in the cross-sectional perspective view of the peripheral wall of the box-shaped main body 4 forming the innermost housing portion,
It is composed of an alumina ceramic layer 5 provided on the outer side thereof, a reflection metal plate layer 6 provided on the outer side of the layer 5, and a heat insulating material layer 7 exteriorly provided on the outer side of the layer 6.

The box-shaped body 4 is made of, for example, polypropylene (PP), and the alumina ceramic layer 5 may be directly applied to the outside of the box-shaped body 4, or the alumina ceramic may be squeezed into paper to form the box-shaped body 4. It may be attached to the outside of.

Further, aluminum foil or the like is used as the metal plate layer 6 that reflects radiation, and styrofoam or the like is used as the outermost heat retaining material layer 7.

[Effects of the Invention] The heat-retaining container of the present invention is constructed as described above, and since each of its constituent parts acts as described above, it has a high heat-retaining effect and is extremely useful as a safe and compact container. is there.

Next, the effect of the heat insulation container according to the present invention will be described with reference to the experimental results shown in FIG.

Experimental conditions Box-shaped body: Polypropylene (PP), outside air: Room temperature: 18 ° C, Contents: Hot water (initial temperature: about 90 ° C) A: The container was composed of a PP box-shaped body only Case B: Alumina ceramic is attached to the outside of the A container C: Aluminum foil is attached to the outside of the B container D: Styrofoam is attached to the outside of the C container In this experiment, the D container is Corresponding to the heat insulation container of the present invention, hot water of about 90 ℃ stored in each container A, B, C, D
As shown in Fig. 4, the time required for the temperature to decrease to 50 ° C is A
46 minutes, B 55 minutes, C 90 minutes, and D 147 minutes.

That is, in this experiment, the container D based on the present invention is
Compared with the normal container A consisting of only the box-shaped main body, the effective heat retention time of 3 times was achieved, demonstrating its usefulness.

In this way, since the box-shaped body made of a material such as polypropylene that stores the heat-retaining object forms the innermost layer of the heat-retaining container, it diverges from the heat-retaining object stored in the box-shaped body 4. With respect to the generated heat, the heat diffusion to the outside is temporarily blocked by the box-shaped main body 4, but since there is only the heat blocking effect shown by A in FIG. 4, the alumina ceramic layer 5 and the reflection metal plate layer are provided on the outside thereof. 6. The heat insulating material layer 7 and the heat insulating material layer 7 are laminated in this order, and the purpose of the invention is to improve the heat insulating effect of the heat insulating object. As the effect, as shown by D in FIG. The temperature decrease rate of can be slowed.

[Brief description of drawings]

FIG. 1 is a partial sectional front view of an embodiment of the heat insulating container of the present invention, FIG. 2 is a top perspective view of the container main body, FIG. 3 is a sectional perspective view of the peripheral wall of the main body, and FIG. 4 is the present invention. It is a figure which shows the heat retention effect of a container. 1 ... Insulating container, 4 ... Box-shaped body, 5 ... Alumina ceramic layer, 6 ... Metal plate layer, 7 ... Insulating material layer.

Claims (1)

[Scope of utility model registration request] 1. A container main body part and a lid part, wherein the container main body part and the lid part are each made of a material such as polypropylene that forms the innermost layer, and accommodate the objects to be kept warm. A box-shaped main body, an alumina ceramic layer attached to the outer side of the box-shaped main body, a reflection metal plate attached to the outer side of the alumina ceramic layer, and a heat-retaining package exterior to the metal plate layer. A heat-insulating container comprising a material layer.