THERMAL INSULATING CONTAINER FOR TRANSPORT

Description

[0001] The invention relates to heat insulation containers for transport according to the independent claim.

[0002] Thermal insulation containers are known that are formed from a molded foam part. In this process, the foam part is shaped by injecting foam material into a mold. Such thermal insulation containers often have the shape of a transport box to ensure temperature-controlled transport of sensitive goods, such as food or pharmaceuticals.

[0003] Thermal insulation containers for transport are known from US 2015 / 197389 A1, DE 101 07 478 A1 and DE 203 11 166 U1.

[0004] A manufacturing process for molded foam parts is known, in particular from PCT / EP2014 / 065465, which is formed by filling and subsequently foaming the foaming material into a packaging sleeve that is inserted into the molding tool. The foaming material fills a cavity enclosed by the packaging sleeve and defined by the molding tool. When used as a thermal insulation container, the molded foam part thus forms the outer wall of a transport box open on one side.

[0005] Since such foam molded parts in the prior art for transporting temperature-sensitive goods do not include an insulating lid, or do not include a suitably designed one, the insulating effect is only inadequately ensured. The object of the invention is to provide a thermally insulated container for transport that overcomes the disadvantages of the prior art by providing a thermally insulated container for transport that includes an insulating lid.

[0006] The problem is solved by the thermal insulation container for transport according to the independent claim. Advantageous embodiments are the subject of the respective dependent claims.

[0007] The invention comprises a thermally insulated container for transport, comprising a foam molded part which forms a container space with a container opening. The thermally insulated container further comprises an outer shell which completely surrounds the outer surface of the foam molded part. The thermally insulated container also comprises an inner shell which completely surrounds the inner surface of the foam molded part. The outer shell and the inner shell are connected along an outer contour in such a way as to provide thermal insulation, preventing the formation of a thermal bridge between the outer and inner shells.

[0008] Furthermore, the thermal insulation container includes an insulating lid, which can be positioned at the container opening.

[0009] Furthermore, the insulation cover includes a vacuum insulation panel. When the insulation cover is positioned over the container opening, the vacuum insulation panel can cover the entire opening to ensure good insulation of the container interior. A vacuum insulation panel has a thermal conductivity of less than 8 mW / mK, and in particular less than 4 mW / mK.

[0010] Furthermore, the foam molded part comprises at least one vacuum insulation panel. This at least one vacuum insulation panel is completely embedded within the foam molded part. Each vacuum insulation panel has a thermal conductivity of less than 8 mW / mK, in particular less than 4 mW / mK.

[0011] A thermal insulation container is also preferred, wherein the outer shell comprises a diffusion barrier film. The diffusion barrier film completely surrounds the outer surface of the foam molding and thereby forms a diffusion barrier for the gases enclosed by the foam molding.

[0012] An advantageous feature is a thermally insulated container in which the inner lining comprises a diffusion barrier film. This diffusion barrier film completely surrounds the inner surface of the foam molding, thus forming a diffusion barrier for the gases trapped within the foam molding.

[0013] It is particularly advantageous if the outer casing includes a packaging layer that surrounds the diffusion barrier film. This packaging layer protects the insulation layer from damage during transport.

[0014] It is advantageous if the diffusion barrier film comprises a metal-coated plastic film, aluminum foil, aluminum composite film, oxide-coated plastic film, or a combination or layering of these films. The metal-coated plastic film may comprise an aluminum-vapor-deposited biaxially oriented polyester film (BOPET), an aluminum-vapor-deposited ethylene-vinyl alcohol copolymer film (EVOH), or a combination of these films. The aluminum composite film may comprise rolled aluminum foil. The oxide-coated plastic film may comprise aluminum oxide (AlO₂X) and / or silicon oxide (SiO₂X). The metal-coated plastic film, the aluminum foil, the aluminum composite film, and the oxide-coated plastic film may be used individually or in any combination and layering to form the diffusion barrier film.

[0015] One advantage is that the packaging layer consists of cardboard. The packaging layer can be made entirely of cardboard to ensure a low weight for the thermal insulation container during transport.

[0016] A process for manufacturing a heat-insulated container includes the following steps: A) Providing an outer shell and a first mold for the outer shell; B) Positioning the outer shell on the first mold; C) Providing an inner shell and a second mold for the inner shell; D) Positioning the inner shell on the second mold; E) Positioning the inner shell inside the outer shell; F) Pouring a foaming agent into a space formed between the inner and outer shells; G) Forming the foam molded part by completely filling the space with foam; H) Removing the foam molded part with the inner shell and the outer shell.

[0017] Preferably, the process for manufacturing a heat insulation container comprises the following step: J) Providing the insulation cover; and K) Providing a vacuum insulation panel and arranging the vacuum insulation panel within the space formed between the inner shell and the outer shell.

[0018] The invention will now be explained in more detail with reference to the examples shown in the accompanying drawings. Identical reference numerals refer to the same features in all figures.

[0019] They show: Fig. 1 a schematic sectional view of a thermal insulation container; and Fig. 2 A schematic cross-sectional view of an outer shell.

[0020] Fig. 1 Figure 1 shows a schematic sectional view of a thermal insulation container 1. The thermal insulation container 1 for transport comprises a foam molding 2, which surrounds a container chamber 3 with a container opening 31. Furthermore, the thermal insulation container 1 comprises an outer shell 4, which completely surrounds the outer surface 21 of the foam molding. The thermal insulation container 1 also comprises an inner shell 5, which completely surrounds the inner surface 22 of the foam molding. Finally, the thermal insulation container 1 includes an insulating lid 6, which is arranged at the container opening 31.

[0021] In the example shown, the insulation cover 6 includes a vacuum insulation panel 7. The vacuum insulation panel 7 is arranged on the insulation cover 6 in such a way that, in the position of the insulation cover 6 shown on the container opening 31, it covers the entire container opening 31. This ensures good insulation of the container space 3. The vacuum insulation panel 7 shown has a thermal conductivity of less than 8 mW / mK, in particular less than 4 mW / mK.

[0022] The thermal insulation container 1 shown comprises a foam molding 7, which in turn comprises a vacuum insulation panel 7. The vacuum insulation panel 7 is completely foamed inside the foam molding 2. The vacuum insulation panel 7 has a thermal conductivity of less than 8 mW / mK, in particular less than 4 mW / mK.

[0023] In the example shown, the outer shell 4 comprises a diffusion barrier film 41. The diffusion barrier film 41 completely surrounds the outer surface 21 of the foam molded part and thus forms a diffusion barrier for the gases enclosed by the foam molded part 2.

[0024] In the example shown, the inner shell 5 also includes a diffusion barrier film 41, which completely surrounds the inner surface 22 of the foam molding and forms a diffusion barrier for the gases enclosed by the foam molding 2.

[0025] The outer shell 4 is thermally connected to the inner shell 5 along an outer contour 51 of the inner shell 5. The thermal connection between the outer shell 4 and the inner shell 5 is designed to prevent the formation of a thermal bridge between the outer shell 4 and the inner shell 5. The outer contour 51 can also be located on the inner side.

[0026] Fig. 2Figure 1 shows a schematic sectional view of an exemplary outer shell 4. The outer shell 4 shown comprises a diffusion barrier film 41 and a packaging layer 42. The diffusion barrier film 41 is an aluminum composite film. The packaging layer 42 is made of cardboard to ensure a low weight for the thermal insulation container 1 during transport. The packaging layer 42 protects the diffusion barrier film 41 from damage during transport. According to the invention, embodiments of the diffusion barrier film 41 comprise a metal-coated plastic film, an aluminum foil, an oxide-coated plastic film, or a combination or layering of these films. The metal-coated plastic film can comprise an aluminum-vapor-deposited biaxially oriented polyester film (BOPET), an aluminum-vapor-deposited ethylene-vinyl alcohol copolymer film (EVOH), or a combination of these films.The oxide-coated plastic film can comprise aluminum oxide (AlO₂X) and / or silicon oxide (SiO₂X). The metal-coated plastic film, the aluminum foil, the aluminum composite foil, and the oxide-coated plastic film can be used alone or in any combination and layering to form the diffusion barrier film.

Claims

1. Thermal insulation container (1) for transport, comprising a molded foam part (2), which molded foam part (2) surrounds a container space (3) with a container opening (31), further comprising an outer shell (4), which outer shell (4) completely surrounds an outer surface of the molded foam part (22), and further comprising an inner shell (5), which inner shell (5) completely surrounds an inner surface of the foam molded part (22), wherein the outer shell (4) is connected to the inner shell (5) along an outer contour (51) in a heat-blocking manner such as to prevent the formation of a thermal bridge between the outer shell (4) and the inner shell (5), comprising an insulating lid (6) which can be positioned at the container opening (31), characterized in that the molded foam part (2) comprises at least one vacuum insulation panel (7) fully encapsulated within the molded foam part (2).

2. Thermal insulation container (1) according to claim 1, wherein the insulating lid (6) comprises a vacuum insulation panel (7).

3. Thermal insulation container (1) according to any one of the preceding claims, wherein the outer shell (4) comprises a diffusion barrier film (41).

4. Thermal insulation container (1) according to any one of the preceding claims, wherein the inner shell (5) comprises a diffusion barrier film (41).

5. Thermal insulation container (1) according to claim 3, wherein the outer shell (4) comprises a packaging layer (42), which packaging layer (42) surrounds the diffusion barrier film (41).

6. Thermal insulation container (1) according to any one of the preceding claims 2 to 4, wherein the diffusion barrier film (41) comprises a metal-coated plastic film or aluminum foil or aluminum composite film or oxide-coated plastic film or a combination or lamination of these films.

7. Thermal insulation container (1) according to claim 5, wherein the packaging layer (42) comprises cardboard.