Thermally insulated transport container comprising thermal insulation resting against the walls, and wall structure of a container of said type
The invention relates to a thermally insulated transport container with a housing for forming a space for goods, with walls and a thermal insulation abutting the walls as well as a wall structure of such a container. In particular, the invention relates to such a container as an air cargo container. According to the invention, sandwich plastic plates are provided as walls, with a honeycomb core welded on both sides to one covering ply, respectively, the honeycomb core and the covering plies consisting of a thermoplastic material, preferably PP. In this case, the walls are, in particular, a thermoplastic sandwich panel, consisting substantially of a PP (polypropylene) honeycomb core and PP covering layers, in particular glass-fiber reinforced, which are, with regard to the materials, homogenously connected to each other by thermally fused connection. Such plates are offered, for example, by Wihag Composites GmbH & Co. KG under the trademark MonoPan®, which are preferred in this case. The use of thermoplastic material makes it possible for adjacent sandwich plastic plates to be attached to each other by welding, particularly in the region of the edges. In particular, it is thus possible to produce largely frameless and thus lighter transport containers.
1. A thermally insulated transport container with a housing for forming a space for goods, the container comprising
walls and
a thermal insulation including a honeycomb core abutting the walls,
wherein sandwich plastic plates are provided as walls, with the honeycomb core welded on both sides to one covering ply, respectively, the honeycomb core and the covering plies consisting of a thermoplastic material,
wherein the sandwich plastic plates that are connected to each other form a self-supporting housing, wherein no further stiffening elements in addition to the sandwich plastic plates and the thermal insulation and a door reinforcement for a door are provided to form the self-supporting housing of the container.
2. The container according to claim 1 , wherein adjacent sandwich plastic plates, along their joint edges and across a corner, are attached to each other by welding and sealed.
3. The container according to claim 1 , wherein vacuum insulating panels are provided as thermal insulation.
4. The container according to claim 1 , wherein the walls have two plies of the sandwich plastic plates with abutting thermal insulation located therebetween, and wherein a self-supporting outer housing of welded-together sandwich plastic plates and a self-supporting inner housing of welded-together sandwich plastic plates is provided, the inner housing forming the space for goods and being disposed in the outer housing at a distance from the outer housing, the space between the inner and the outer housing being filled with the thermal insulation, the insulation further being fastened in the outer housing in a two-dimensional manner or in portions or in a point-shaped manner, and the inner housing further being inserted into the insulation.
5. The container according to claim 1 , wherein the sandwich plastic plates consist exclusively of thermoplastic material.
6. The container according claim 1 , wherein the one or both covering plies and the honeycomb core are fiber reinforced and wherein the honeycomb core, with regard to the materials, is homogeneously connected to the covering plies by a thermally fused connection.
7. The container according claim 1 , wherein a thermal conductivity of the thermal insulation is 0.002-0.009 W/m K.
8. The container according to claim 1 , wherein communication means for data transmission are provided within an outer housing, which include integrated sensors or are connected or connectable with them, wherein, furthermore, GPS for transmission of position, sensors for temperature monitoring and vacuum detectors for monitoring an air pressure are provided as sensors in the vacuum insulating panels.
9. The container according to claim 1 , wherein the door reinforcing means comprises a profile consisting of a light metal alloy, which is attached to an outer housing and an inner housing and connects them with one another.
10. A wall structure of a thermally insulated transport container, the wall structure comprising
a thermal insulation inserted between two walls,
wherein sandwich plastic plates are provided as walls, with a honeycomb core and a weld between one side of the honeycomb core and one covering ply, and a weld between another side of the honeycomb core and another covering ply, the honeycomb core and the covering plies consisting of a thermoplastic material,
wherein cylindrical recesses are provided in the honeycomb core which extend in a plane of the honeycomb core, over an entire length of the honeycomb core, wherein fastening, pivoting or locking members are rotatably inserted into the recesses.
11. The wall structure according to claim 10 , wherein vacuum insulating panels are provided as thermal insulation.
12. The wall structure according to claim 10 , wherein the sandwich plastic plates consist exclusively of thermoplastic material.
13. The wall structure according to claim 10 , wherein the one or both covering plies and the honeycomb core are glass or carbon fiber reinforced.
14. The wall structure according to claim 10 , wherein the honeycomb core-is materially homogeneously connected to the covering plies by means of thermally fused connection.
15. The wall structure according to claim 10 , wherein the thermal conductivity of the thermal insulation is 0.002-0.009 W/m K.
16. A thermally insulated transport container, with a housing for forming a space for goods, the container comprising
walls and
several vacuum insulating panels abutting the walls as thermal insulation,
wherein the vacuum insulating panels each have a vacuum detector for monitoring an air pressure in the respective vacuum insulating panel,
wherein each vacuum detector has a digital circuit with its own address that can be read out via a data bus; wherein all vacuum detectors are connected to a data bus; and
wherein a read-out unit is connected to the data bus in such a way that the air pressure can be retrieved by all vacuum detectors continuously or upon user request.