WO2014118821A1

WO2014118821A1 - Thermal insulation box

Info

Publication number: WO2014118821A1
Application number: PCT/JP2013/000539
Authority: WO
Inventors: 安人日下; 笠原　敬介
Original assignee: Kusaka Yasuto; Kasahara Keisuke
Priority date: 2013-01-31
Filing date: 2013-01-31
Publication date: 2014-08-07

Abstract

[Problem] To provide a thermal insulation box capable of keeping an item housed therein cold/hot, at a constant temperature and over a long period, by using: a structure wherein a vacuum thermal insulation plate is mounted between inside and outside thermal insulation plates; and a structure whereby a thin aluminum material is vapor deposited on the surface of the inside and outside thermal insulation plates. [Solution] A thermal insulation box comprising: a housing section for a substantially square body and having an opening; and a lid having the surface sealing the opening, being freely openable and closable, and being insulated. An inside thermal insulation plate is closely bonded to the outside surface of each inside wall of the housing section, the vacuum thermal insulation plate is closely bonded to the inside thermal insulation plates, and an outside thermal insulation plate is closely bonded to the outside surface of the vacuum thermal insulation plate. The housing section has a configuration comprising: a heat/cold retention agent housing section; a housing section for the object to be kept hot/cold; and an insulated partition plate that partitions the heat/cold retention agent housing section and the housing section for the object to be kept hot/cold, and blocks airflow therebetween.

Description

Heat insulation box

The present invention relates to a heat insulating box used as a walk-through box having a heat-insulating effect, and in particular, a vacuum box in which the return box is composed of two upper and lower chambers by partition plates, and the side wall, bottom, and lid of the box are vapor-deposited with a thin aluminum material. The present invention relates to a heat insulating box made of a heat insulating material that can be kept cool and warm for a desired period.

Conventionally, various technologies related to returnable boxes that can keep warm and cool have been developed, and many returnable boxes are used. As a use of a returnable box capable of keeping warm and cold, for example, long-time transportation of living organisms and the like can be considered. For example, when transporting fresh foods, it is necessary to keep warm and cool for a long time, especially when a long distance is required or when it is necessary to store for a long time, Indispensable for maintaining the quality of fresh foods for a long time.

A variety of technologies have been developed as technology related to returnable boxes that can keep warm and cool. For example, according to the technique disclosed in Japanese Patent Application Laid-Open No. 2007-126188, a heat insulating container including a container, a heat insulating bag made of a main body and a lid for containing the container, each wall portion of the bag main body In addition, a technique related to a heat insulating container that houses a vacuum heat insulating material in the bottom wall portion and the top wall portion of the lid body is disclosed, which suggests that it is possible to provide a heat insulating container with greatly improved heat insulating performance. ing.

The vacuum heat insulating material is a member that can obtain a high heat insulating effect, and is a member that can be used in a heat insulating container. However, in the above prior art, the vacuum heat insulating material is only attached to the outer cover portion. In other words, since the so-called heat reflection effect is not sufficiently utilized, it cannot be said that it is sufficient from the viewpoint of obtaining a high heat insulation effect. In the prior art, a chamber for storing a cold insulation material is provided. However, the chamber and the chamber for storing the cold object to be cooled are emphasized that air is circulated without being sealed. In these structures, not only overcooling and overheating are caused, but also the cold insulation temperature time (period) is limited, and it cannot be said that the container can achieve a sufficient cold insulation temperature effect for a desired period.

The applicant of the present invention is also the applicant of the invention according to Japanese Patent Application Laid-Open No. 2010-120673. In this case, the inside of the case body of the heat insulating material is divided into an upper chamber and a lower chamber by a partition plate of the heat insulating material, and the upper chamber stores the cold insulating agent or the heat insulating agent, A technology is disclosed in which a cold-retained body or a heat-retained body is housed in the chamber so that the cold-retained body or the like can be kept cold or warm for a long time. Has been disclosed for a long time and can be transported as it is from a production site to a remote location.

However, although it is possible to realize the cold insulation temperature for a certain long time according to this technique, there is a problem that it is difficult to satisfy the demand for the cold insulation temperature for a longer period of time. For example, in the medical industry that requires long-term cold preservation such as organs, it is necessary to further extend the cold preservation time and keep it at a constant temperature without being overcooled. Met.

It is of course possible to perform temperature control using a heating / cooling device or the like, but manufacturing and operation costs are high, and facilities such as a power source are also required. Furthermore, there is also a problem that the contents are immediately deteriorated at the time of failure. Although temperature control using a cryogen (cooling agent) such as dry ice is also conceivable, there is a problem that there is a limitation that there is a cryogen or a device that cannot be mounted on an aircraft.
Therefore, it can be manufactured as cheaply as possible, and it can maintain a constant temperature for a long time without additional heating / cooling, and the amount or material of the cold insulation agent according to the distance and time. It has been desired to develop a heat insulating box for transportation that can maintain a constant temperature for an arbitrary time by adjusting the temperature.
JP 2007-126188 A JP 2010-120673 A

In order to solve the above-mentioned problem, the present invention is a heat insulation box used as a go-through box with enhanced heat insulation effect, and in particular, a structure in which a vacuum heat insulating plate is mounted between the inner and outer heat insulating plates, and further, an inner side and an outer side. A heat insulating box that can cool and keep the contents at a constant temperature over a long period of time is provided by a structure in which a thin aluminum material is deposited on the surface of the heat insulating plate.

In order to achieve the above object, the heat insulation box according to the present invention comprises a storage box made of a storage box using a heat insulating material, a storage part of a substantially rectangular body having an opening, and a surface that can be opened and closed to seal the opening. A heat-insulated lid body, and tightly bonding an inner heat insulating plate composed of a single layer and / or multiple layers to the outer surface of each inner wall of the storage unit, and tightly bonding a vacuum heat insulating plate to the inner heat insulating plate, Further, the outer heat insulating plate composed of a single layer and / or a plurality of layers is tightly bonded to the outer surface of the vacuum heat insulating plate, and the storage portion includes a cold insulation agent storage portion, a cold insulation material storage portion, and the cold insulation temperature. It is the structure which consists of a heat insulation partition plate which partitions an agent storage part and the said to-be-cooled warm material storage part, and interrupts | blocks mutual air circulation.

Further, the lid body is tightly joined to the outer surface of the vacuum heat insulating plate, the inner heat insulating plate composed of a single layer or a plurality of layers joined to the outer surface of the inner wall, the vacuum heat insulating plate to be tightly joined to the inner heat insulating plate, and the vacuum heat insulating plate. And an outer heat insulating plate composed of a single layer or a plurality of layers.

The inner heat insulating plate and the outer heat insulating plate have a structure in which an aluminum thin material is deposited on a surface of the vacuum heat insulating plate that is in contact with the inner heat insulating plate and / or the outer heat insulating plate.
Moreover, the said heat insulation box is the structure which airtightly covered the whole surface of the storage part and the vacuum heat insulation board of the cover body in the resin material.
Moreover, it is also the structure by which the aluminum thin plate was vapor-deposited on each both surfaces of the said single layer inner side heat insulating board and outer side heat insulating board.

Further, in the cold storage state, the storage portion is provided with the cold insulation and warming agent storage portion at the upper part of the heat insulating partition plate, and the cold insulated material storage portion is disposed at the lower portion of the heat insulation partition plate. The cold-insulating / warming agent storage part is arranged at the lower part of the heat-insulating partition plate, and the cool-warm and warm object storage part is arranged at the upper part of the heat-insulating partition plate.

Since the present invention is configured as described in detail above, the following effects are obtained.
1. A single-layer or multiple-layer inner heat insulating plate is tightly bonded to each wall surface of the storage unit, a vacuum heat-insulating plate is tightly bonded to the inner heat-insulating plate, and the outer surface of the vacuum heat-insulating plate is formed of a single layer or multiple layers. Since the heat insulating plate is tightly bonded, it is possible to keep the internal heat constant and cut off the external heat to reduce the influence of the external heat. In addition, since the inner and outer heat insulating plates are made of multiple layers, it is possible to make it difficult for internal cold and hot heat to be released to the outside due to heat reflection between each heat insulating plate, and at the same time, it is difficult to conduct external heat to the inside. It becomes. Furthermore, since the cold insulation warmth storage part and the cold insulation warmth storage part of the storage part are partitioned by a heat insulating partition plate that blocks mutual air circulation, the cold insulation heat from the cold insulation or the thermal insulation is more than necessary. Since it is not given to the body to be insulated, it is possible to keep the cold insulation temperature for a long time through gentle holding heat.

2. In addition, an inner heat insulating plate made of a single layer or a plurality of layers, a vacuum heat insulating plate tightly bonded to the inner heat insulating plate, and an outer heat insulating plate made of a single layer or a plurality of layers tightly bonded to the outer surface of the vacuum heat insulating plate. Because it is configured to prevent the release of internal heat via the lid and heat conduction from the outside, it is possible to keep the internal heat constant and at the same time reduce the influence of heat from the outside .

3. In addition, the inner and outer heat insulation plates have a thin aluminum material deposited on the surface in contact with the vacuum heat insulation plate, so that a higher heat insulation effect can be obtained, and heat reflection occurs to block cold heat from inside and outside. The effect can be enhanced.
4). Moreover, durability and a higher heat insulation effect can be obtained by hermetically sealing the entire surface of the housing and the vacuum heat insulating plate of the lid with a resin material.

5. Moreover, since both sides of the single-layer inner heat insulating plate and the outer heat insulating plate are vapor-deposited aluminum plates, a higher heat insulating effect can be obtained, and heat reflection occurs to block cold heat from inside and outside. It becomes possible.
6). The storage part is arranged in the cold state with the cold insulation material storage part at the upper part of the heat insulation partition plate, and the cold insulation material storage part at the lower part of the heat insulation partition plate, and in the heat insulation state, on the contrary. Since the arrangement is adopted, it is possible to keep the cold temperature for a long time effectively in both cases of cold and warm.

Hereinafter, the heat insulation box concerning the present invention is explained in detail based on the example shown in a drawing. FIG. 1 is a perspective view of the heat insulation box of the present invention, and FIG. 2a is a side sectional view of the heat insulation box. 2b is an enlarged cross-sectional view of the side wall of the heat insulating box, and FIG. 3 is a cross-sectional view of the vacuum heat insulating plate. 4A is a cross-sectional view of an inner heat insulating plate and an outer heat insulating plate on which an aluminum thin material is vapor-deposited, and FIG. 4B is a cross-sectional view of an inner heat insulating plate and an outer heat insulating plate in which an aluminum thin material is vapor-deposited on both surfaces. FIG. 5 is a cross-sectional view of a state in which a vacuum heat insulating plate is sandwiched between an inner heat insulating plate and an outer heat insulating plate, and FIG. 6A is a side cross-sectional view illustrating a use state during cold storage. FIG. 6B is a side cross-sectional view showing a use state during heat insulation, and FIG. 7 is an exploded perspective view showing an embodiment of the heat insulating box.
The heat insulation box 10 of the present invention is composed of the storage unit 20 having the heat insulating partition plate 24 and the lid 30, and mainly has improved cold insulation temperature and heat insulation properties that can keep the cold insulation temperature of the stored items for a long time. It is an insulated box.

As shown in FIG. 1, the heat insulating box 10 is formed of a hexahedron that is a substantially rectangular parallelepiped having each surface formed in a square shape, and has a configuration in which a lid 30 is openably and closably installed on a storage unit 20 having an open top. ing. The surface of the lid 30 is heat-insulated. In the embodiment of the present invention, the lid 30 is configured to be crimped and fixed to the storage portion 20 by a clasp 32 to keep a sealed state.

As shown in FIG. 2a, FIG. 6a, and FIG. 6b, the storage unit 20 is a box member that has a hollow interior for storing the cold insulation agent 221, the thermal insulation agent 222, the cold object 231, and the thermal insulation object 232. The opening 21 is provided in the upper and lower portions so that the cold insulating material 221, the heat insulating agent 222, the cold object 231 and the warm object 232 can be stored.

As shown in FIG. 2 a, the storage unit 20 has an inner surface covered with an inner wall 25 and an outer surface covered with an outer wall 26. The material used for the inner wall 25 and the outer wall 26 is arbitrary, but it is desirable that the material has impact resistance and heat insulation. In this embodiment, a synthetic resin such as acrylic is used, but the present invention is not limited to this.

As shown in FIGS. 2a and 2b, an inner heat insulating plate 40a is tightly bonded to each of the outer surface and the bottom surface of the inner wall 25 of the storage unit 20 substantially parallel to the inner wall 25 toward the outer wall 26 side. The inner heat insulating plate 40 a is a plate-like member having heat insulating properties, and is joined along the outer side surface of the inner wall 25. In the present embodiment, foamed polystyrene such as Styrofoam or Styrofoam (registered trademark) is used as the material of the inner heat insulating plate 40a, and is mainly configured with a thickness of about 3 mm. However, the present invention is not limited to this. As the material, for example, polyurethane resin, highly foamed polyethylene, foamed glass, and the like can be selected, and the material can be formed with an arbitrary thickness.

The inner heat insulating plate 40a can be bonded to each surface of the inner wall 25 of the storage unit 20 as a single layer, or can be configured by stacking a plurality of layers and bonding them in layers. Depending on the shape of the inner wall 25, a single layer and a plurality of layers can be arbitrarily selected. The inner heat insulating plate 40a is preferably a plurality of layers as shown in FIGS. 2a and 2b, rather than a single layer, from the viewpoint of cold insulation temperature and heat insulation.

In addition, although it is possible to obtain a cold insulation / heat insulation effect by increasing the thickness of the inner heat insulating plate 40a itself, a higher cold insulation / heat insulation effect can be obtained by configuring the inner heat insulation plate 40a with a plurality of layers. Therefore, it is desirable to have a plurality of layers. As shown in FIG. 5, the multi-layer structure makes it easy for heat reflection to occur between the inner heat insulating plates 40 a, and the outer conduction of the cold heat from the inside of the storage unit 20 is blocked between the inner heat insulating plates 40 a. It will be a thing. This is considered to be one of the reasons why it is desirable to have a plurality of layers.

As shown in FIGS. 2a and 2b, a vacuum heat insulating plate 50a is further tightly bonded to the inner heat insulating plate 40a on the outer wall 26 side. The vacuum heat insulating plate 50a is a heat insulating plate in which a heat insulating core material such as glass fiber is hermetically sealed and the inside is evacuated, and is joined along the inner heat insulating plate 40a. According to the prior art, the vacuum heat insulating plate is configured to keep a vacuum state by hermetically covering with a thin aluminum material, but in this embodiment, as shown in FIG. 3, the core material of the vacuum heat insulating plate 50a is made of resin. It is the structure which covers with the material 52a and maintains a vacuum state. A vacuum heat insulating plate covered with a thin aluminum material may be further covered with a resin material 52a. Moreover, although the thickness of the vacuum heat insulating board 50a is about 10 mm, it is not limited to this thickness, and the vacuum of arbitrary thickness is used according to the size, application, etc. of the heat insulating box to constitute. It is possible to use a heat insulating plate 50a.

By using the vacuum heat insulating plate 50a, it is possible to obtain an effect of blocking heat conduction by gas, and it is possible to obtain a higher cold insulation / heat insulation effect. In addition, it is considered that heat reflection occurs between the inner heat insulating plate 40a and the vacuum heat insulating plate 50a as shown in FIG. 5, and conduction of cool / warm heat discharged from the inside to the outside is considered. It is considered that the heat shielding effect has occurred.

As shown in FIGS. 2a and 2b, an outer heat insulating plate 60a is further tightly bonded to the vacuum heat insulating plate 50a on the outer wall 26 side. The outer heat insulating plate 60a is a plate-like member having heat insulating properties, and is joined along the vacuum heat insulating plate 50a. In the present embodiment, similarly to the inner heat insulating plate 40a, the outer heat insulating plate 60a is made of expanded polystyrene such as Styrofoam or Styrofoam (registered trademark) and is mainly configured with a thickness of about 3 mm. The material is not limited to this. For example, polyurethane resin, highly foamed polyethylene, foamed glass, or the like can be selected as the material, and the material can be formed with an arbitrary thickness.

As shown in FIGS. 2a and 2b, the outer heat insulating plate 60a can be joined in a single layer in parallel to the vacuum heat insulating plate 50a, or a plurality of layers can be stacked and joined together as a layer. Is possible. In addition, a single layer and a plurality of layers can be arbitrarily selected for each side surface and bottom surface. In addition, it is desirable that the outer heat insulating plate 60a has a plurality of layers rather than a single layer from the viewpoint of cold insulation and heat insulation, similarly to the inner heat insulating plate 40a.

Although it is possible to obtain a cold insulation / heat insulation effect by increasing the thickness of the outer heat insulating plate 60a itself, as with the inner heat insulating plate 40a, the outer heat insulating plate 60a is made up of a plurality of layers, which is higher. Since it has been found that it is possible to obtain a cold insulation temperature / heat insulation effect, it is desirable to have a plurality of layers. With this configuration, it is possible to block the conduction of cold / hot heat entering from the outside into the interior, and to obtain a high cold insulation / heat insulation effect.

The storage unit 20 is configured by stacking the inner heat insulating plate 40a, the vacuum heat insulating plate 50a, and the outer heat insulating plate 60a as described above, and further covering the outer heat insulating plate 60a with the outer wall 26. By adopting such a configuration, it is possible to prevent the cool / heat energy inside the storage unit 20 from being released to the outside, and to prevent the cool / heat heat from the outside from being conducted to the inside. Furthermore, since the vacuum heat insulating plate 50a is sandwiched between the inner heat insulating plate 40a and the outer heat insulating plate 60a, the impact from the inside and the outside is alleviated by each heat insulating plate. Thereby, it is the structure which avoids that the hole in the vacuum heat insulation board 50a opens and the heat insulation effect obtained from a vacuum state reduces.

As shown in FIG. 2 a, the storage unit 20 is provided with a cold and warm agent storage unit 22 and a cold-warm storage unit 23 that are vertically divided. Hereinafter, the case where the heat insulation box according to the present invention is used for cold insulation will be described. In addition, when using it for heat retention, it is also possible to use it upside down as described later. The cold insulation agent storage unit 22 is a space for storing the cold insulation agent 221 or the insulation agent 222, and is provided on the upper part of the storage unit 20 as shown in FIGS. In addition, the cold-warm-warm storage unit 23 is a space for storing the cold-warm object 231 or the warm-warm object 232, and when used for cold storage, as shown in FIGS. 2a and 6a, the storage unit 20 Is provided at the lower part.

As shown in FIG. 2a, the storage unit 20 is provided with a heat insulating partition plate 24 that divides the cold and warm agent storage unit 22 and the cold-warm storage unit 23 vertically. The heat insulating partition plate 24 is a plate-like heat insulating member that partitions the cold insulation material storage unit 22 and the cold insulation material storage unit 23, and allows air circulation between the cold insulation material storage unit 22 and the cold insulation material storage unit 23. It is the structure which shuts off and seals.

In the prior art, a plurality of holes are formed in the plate that partitions the cold insulation material storage unit 22 and the cold insulation material storage unit 23, and the cold heat generated from the cold insulation material is supplied from the holes to the cold insulation material storage unit. In this way, it is possible to achieve the effective cooling and keeping of the cold-warmed material partially and rapidly by reaching the cold-warm warm material and causing rapid air circulation. However, in the case of this conventional structure, since the cold / heat released from the cold insulation is in contact with or close to the object to be cooled, the cold insulation rapidly increases the cooling / heat more than necessary. This results in a problem that the cold and heat retention effects are reduced in a short period of time and are not suitable for long-term storage. In addition, overcooling and warming may cause overcooling and overheating of the object to be kept warm, and a further sudden temperature change may cause a partial load on the object to be kept warm. In some cases, depending on the object to be kept cold, temperature compensation cannot be performed in a predetermined period, and the product value may be lowered. In addition, the service life of the cold insulation agent is shortened.

On the other hand, in the present invention, since the heat insulating partition plate 24 of the heat insulating box 10 has a sealed structure that blocks air flow, the cold insulation

warm agents

221 and 222 are reserved in the cold insulation warm agent storage portion 22 and the insulation partition plate 24 is installed. Therefore, it is possible to prevent unnecessary cooling / heating heat from being released from the cold-retaining and warming agent, and to maintain a constant temperature through gentle holding heat. It became possible to keep the cool temperature for a long time.

It is desirable that the heat insulating partition plate 24 is a member having a heat insulating property so as to prevent the cold / warm heat from being applied to the cold-warmed object as described above. In the present embodiment, expanded polystyrene such as expanded polystyrene or Styrofoam (registered trademark) is used as the material of the heat insulating partition plate 24, but the material is not limited to this. Examples of the material include polyurethane resin and highly expanded polyethylene. Etc. can be selected. Moreover, although the thickness of the heat insulation partition plate 24 can be made arbitrary, since the cold / hot heat is not transmitted to the object to be kept warm if it is too thick, it is excessively cooled and overheated if it is too thin. It is desirable to select the thickness. In the present embodiment, a thickness of about 3 mm is used as the thickness of the heat insulating partition plate 24, but is not limited to this.

Further, the height position of the heat insulating partition plate 24 can be arbitrarily adjusted according to the size of the object to be cooled and the optimum temperature of the object to be cooled. In the present embodiment, the storage unit 20 is provided horizontally at a substantially central height position, but the shape is not limited thereto.

In addition, although the above demonstrated the case where the heat insulation box which concerns on this invention was used as a cold storage use, when using for a heat insulation use, as shown to FIG. 6 b, as shown in FIG. It is also possible to use the position 23 upside down. Details of this point will be described later.

The lid 30 is a member that has a surface heat-insulated by the inner wall 35 and the outer wall 36 and is a lid that is pressure-bonded and fixed to the storage unit 20 to maintain a sealed state. The lid 30 has a structure in which an inner heat insulating plate 40b, a vacuum heat insulating plate 50b, and an outer heat insulating plate 60b are laminated as in the case of the storage unit 20.

As shown in FIGS. 2 a and 2 b, an inner heat insulating plate 40 b is tightly bonded to the inner wall 35 of the lid 30 in parallel with the outer surface of the inner wall 35. The inner heat insulating plate 40 b is a plate-like member having heat insulating properties, and is joined along the inner wall 35. In this embodiment, foamed polystyrene such as Styrofoam or Styrofoam (registered trademark) is used as the material of the inner heat insulating plate 40b, and it is mainly configured with a thickness of about 3 mm. However, the present invention is not limited to this. As the material, for example, polyurethane resin, highly foamed polyethylene, foamed glass, and the like can be selected, and the material can be formed with an arbitrary thickness.

The inner heat insulating plate 40b can be bonded to each surface of the inner wall 35 of the lid body 30 as a single layer, or a plurality of layers can be stacked to form a layer. Although it is possible to obtain a cold insulation / heat insulation effect by increasing the thickness of the inner heat insulation plate 40b itself, it is possible to obtain a higher cold insulation / heat insulation effect by forming the inner heat insulation plate 40b into a plurality of layers. Since it becomes possible, it is desirable to have multiple layers.

As shown in FIGS. 2a and 2b, a vacuum heat insulating plate 50b is tightly bonded to the inner heat insulating plate 40b of the lid 30 on the outer wall 36 side. The vacuum heat insulating plate 50b is a heat insulating plate in which a heat-insulating core material such as glass fiber is hermetically sealed and evacuated, and is joined along the inner heat insulating plate 40b. According to the prior art, the vacuum heat insulating plate was configured to maintain a vacuum state by coating with a thin aluminum material, but in this embodiment, as shown in FIG. The core material of 50b is covered with the resin material 52b to keep the vacuum state. A vacuum heat insulating plate covered with a thin aluminum material may be further covered with a resin material 52b. Moreover, although the thickness of the vacuum heat insulation board 50b is using about 10 mm, it is not limited to this thickness, It is set as arbitrary thickness according to the magnitude | size of a heat insulation box to comprise, a use, etc. It is possible. By using this vacuum heat insulating plate 50b, it is possible to obtain an effect of blocking heat conduction by gas, and it is possible to obtain a higher cold insulation temperature / heat insulation effect.

As shown in FIGS. 2a and 2b, an outer heat insulating plate 60b is further tightly bonded to the vacuum heat insulating plate 50b on the outer wall 36 side. The outer heat insulating plate 60b is a plate-like member having heat insulating properties similarly to the inner heat insulating plate 40b, and is joined along the vacuum heat insulating plate 50b. In this embodiment, foamed polystyrene such as Styrofoam or Styrofoam (registered trademark) is used as the material of the outer heat insulating plate 60b, and it is mainly configured with a thickness of about 3 mm, but is not limited to this. For example, polyurethane resin, highly foamed polyethylene, foamed glass and the like can be selected, and can be configured with an arbitrary thickness.

As shown in FIG. 2a, the outer heat insulating plate 60b can be joined in a single layer in parallel to the vacuum heat insulating plate 50b, and can also be formed into a plurality of layers. As with the inner heat insulating plate 40b, the outer heat insulating plate 60b is preferably a plurality of layers rather than a single layer from the viewpoint of cold insulation and heat insulation.

The lid 30 is configured by stacking the inner heat insulating plate 40b, the vacuum heat insulating plate 50b, and the outer heat insulating plate 60b as described above, and further covering the outer heat insulating plate 60b with the outer wall 36. Accordingly, it is possible to prevent the release of internal heat via the lid body 30 and the heat conduction from the outside, keep the internal heat constant, and reduce the influence of the external heat. Furthermore, since the impact from the inside and the outside is alleviated by the heat insulating plate, damage to the vacuum heat insulating plate 50b can be avoided.

In another embodiment according to the present invention, the inner heat insulating plate 40a and the outer heat insulating plate 60a of the storage unit 20 are further provided with a vacuum heat insulating plate 50a, an inner heat insulating plate 40a and / or an outer heat insulating plate 60a as shown in FIG. 4a. The aluminum thin material 70a is vapor-deposited on the surface in contact with. Similarly, as shown in FIG. 4a, the inner heat insulating plate 40b and the outer heat insulating plate 60b of the lid 30 are made of an aluminum thin material 70b on the surface in contact with the vacuum heat insulating plate 50b and the inner heat insulating plate 40b and / or the outer heat insulating plate 60b. It is the structure which vapor-deposited.

Thus, as shown in FIG. 5, by adopting a configuration in which the

thin aluminum materials

70a and 70b are vapor-deposited on the surfaces of the inner

heat insulating plates

40a and 40b and the outer

heat insulating plates

60a and 60b that are in contact with the vacuum

heat insulating plates

50a and 50b, It is considered that a heat reflection occurs between the inner heat insulating plate / outer heat insulating plate and the vacuum heat insulating plate. Accordingly, it is possible to effectively prevent the cold / hot heat inside the storage unit 20 from being released to the outside through the side wall / bottom part of the storage unit 20 and the lid body 30 and to efficiently transmit the cold / hot heat from the outside to the inside. Therefore, it is possible to form the heat insulating box 10 capable of maintaining a constant cold temperature for a longer time in any external environment.

The vacuum

heat insulating plates

50a and 50b of the storage unit 20 and the lid 30 are configured to hermetically cover the entire surface with

resin materials

52a and 52b, as shown in FIG. By adopting this configuration, the vacuum state can be effectively maintained, so that it can be maintained for a long time, and further, damage to the vacuum

heat insulating plates

50a, 50b due to internal and external impacts is prevented, and the

resin materials

52a, 52b themselves An efficient heat insulating effect can be obtained. A synthetic resin such as acrylic or epoxy can be selected as the material of the

resin materials

52a and 52b.

As shown in FIG. 4b, the inner heat insulating plate 40a and the outer heat insulating plate 60a of the storage unit 20 are configured by depositing aluminum thin plates 70a on both surfaces of the inner heat insulating plate 40a and the outer heat insulating plate 60a. Similarly, as shown in FIG. 4b, the inner heat insulating plate 40b and the outer heat insulating plate 60b of the lid body 30 can be configured such that an aluminum thin plate 70b is vapor-deposited on both surfaces of the inner heat insulating plate 40b and the outer heat insulating plate 60b. It is.

As shown in FIG. 5, this configuration has a structure in which heat reflection is more likely to occur between the laminated inner heat insulating plates and between the outer heat insulating plates, and between the inner heat insulating plate / outer heat insulating plate and the vacuum heat insulating plate. Conceivable. With this structure, it is possible to prevent the cool / heat heat inside the storage unit 20 from being discharged to the outside through the side wall / bottom part of the storage unit 20 and the lid 30, and to prevent the cool / heat heat from the outside from being conducted to the inside. It has become possible to maintain a constant cold temperature for a long time in the environment.

Next, an embodiment of the heat insulation box 10 of the present invention will be described. The heat insulation box 10 can be used for both cold and heat insulation. At this time, in the cold insulation application, as shown in FIG. 6 a, the storage unit 20 arranges the cold insulation warm agent storage unit 22 on the upper part of the heat insulation partition plate 24, and places the cold insulation warm material storage unit 23 on the heat insulation partition plate 24. The configuration is arranged at the bottom. In other words, the cold insulating agent 221 is arranged in the upper part partitioned by the heat insulating partition plate 24, and the cold object 231 is arranged in the lower part partitioned by the heat insulating partition plate 24. By arranging in this way, the cool air having a large specific gravity is lowered, so that it is possible to cool the object to be cooled 231 more effectively. At this time, it is considered that the cold insulating agent 221 itself also plays a role as a heat insulating material, and it is considered that excessive cooling heat inside the storage unit 20 is suppressed from being released to the outside.

In the heat insulation application, as shown in FIG. 6 b, the storage unit 20 has the cold insulation and warming agent storage unit 22 disposed below the heat insulation partition plate 24, and the cold insulation material storage unit 23 is disposed above the heat insulation partition plate 24. It is the structure to arrange in. In other words, the heat retaining agent 222 is disposed in the lower portion partitioned by the heat insulating partition plate 24, and the heat retaining material 232 is disposed in the upper portion partitioned by the heat insulating partition plate 24. By arranging in this way, the temperature rises, so that it is possible to maintain the temperature of the object to be insulated 232 more effectively.

As a method of partitioning the cold insulation / warm agent storage part 22 and the cold insulation material storage part 23, as shown in FIG. 7, the heat insulation partition plate 24 may be formed in a box shape to form a heat insulation partition box 28. By setting it as this structure, it becomes possible to make the heat insulation partition box 28 into the cold insulation warm agent storage part 22 or the to-be-cooled warm material storage part 23 according to a cold storage use and a heat insulation use. As a result, the contents of the storage unit 20 can be easily taken out, and by exchanging the heat insulating partition box 28 itself, the contents of the heat insulating partition box 28 can be easily taken out and replaced. It can be configured.

The perspective view of the heat insulation box of this invention Side cross-sectional view of insulation box Enlarged sectional view of the side wall of the insulation box Cross section of vacuum insulation board Cross-sectional view of inner and outer insulation plates deposited with thin aluminum material Cross section of inner and outer insulation plates with thin aluminum material deposited on both sides Sectional view of the state where the vacuum heat insulating plate is sandwiched between the inner heat insulating plate and the outer heat insulating plate Side cross-sectional view showing operating condition during cold storage Side sectional view showing the state of use during heat insulation An exploded perspective view showing an embodiment of a heat insulating box

DESCRIPTION OF SYMBOLS 10 Insulation box 20 Storage part 21 Opening 22 Cold insulation warm agent storage part 221 Cold insulation agent 222 Insulation agent 23 Cold insulation object storage part 231 Insulation object 232 Insulation object 24 Thermal

insulation partition plate

25, 35

Inner wall

26, 36 Outer wall 28 Insulation partition Box 30 Lid 32

Clasp

40a, 40b Inner

heat insulating plate

50a, 50b Vacuum

heat insulating plate

52a,

52b Resin material

60a, 60b Outer

heat insulating plate

70a, 70b Thin aluminum material

Claims

A heat insulating box made of a storage box using a heat insulating material is composed of a storage part of a substantially rectangular body having an opening, and a cover body that is heat-insulated with a surface that can be opened and closed to seal the opening,
A single-layer and / or multiple-layer inner heat insulating plate is tightly bonded to the outer surface of each inner wall of the storage portion, a vacuum heat insulating plate is tightly bonded to the inner heat insulating plate, and a single layer is formed on the outer surface of the vacuum heat insulating plate. And / or tightly bonding the outer heat insulating plate composed of a plurality of layers,
The storage unit includes a cold insulation material storage unit, a cold insulation material storage unit, and a heat insulating partition plate that partitions the cold insulation material storage unit and the cold insulation material storage unit and blocks mutual air circulation. A heat insulating box characterized by
The lid includes an inner heat insulating plate composed of a single layer or a plurality of layers bonded to the outer surface of the inner wall, a vacuum heat insulating plate closely bonded to the inner heat insulating plate, and a single member bonded to the outer surface of the vacuum heat insulating plate. The heat insulation box according to claim 1, comprising an outer heat insulating plate composed of a layer or a plurality of layers.
3. The heat insulation according to claim 1, wherein the inner heat insulating plate and the outer heat insulating plate are formed by depositing an aluminum thin material on a surface of the vacuum heat insulating plate in contact with the inner heat insulating plate and / or the outer heat insulating plate. Box.
The heat insulation box according to any one of claims 1 to 3, wherein the heat insulation box is airtightly covered with a resin material on the entire surface of the housing and the vacuum heat insulating plate of the lid.
5. The heat insulating box according to claim 1, wherein an aluminum thin plate is deposited on both surfaces of the single-layer inner heat insulating plate and the outer heat insulating plate.
In the cold storage state, the cold storage / warming agent storage portion is disposed above the heat insulation partition plate, and the cold storage material storage portion is disposed below the heat insulation partition plate. 6. The heat insulating box according to claim 1, wherein a warming agent storage portion is disposed at a lower portion of the heat insulating partition plate, and the cold-warmed warm material storage portion is disposed at an upper portion of the heat insulating partition plate.