High efficiency bolt-on thermal insulating panel and thermally insulated shipping container employing such a thermal insulating panel
View Patent ↗A bolt-on thermal insulation panel assembly, shipping container constructed from such thermal insulation panel assemblies, method of assembling and method of using to transport thermally labile goods. The thermal insulation panel assembly includes a solid vacuum insulation panel with a superimposed layer of rigid foam insulation having a plurality of mechanical fasteners secured to the layer of rigid foam insulation.
1. A bolt-on thermal insulation panel assembly having a thickness that extends in a transverse direction, comprising:
(a) an integrated assembly including at least:
(i) a hermetically sealed, solid, vacuum insulation panel having first and second major surfaces spaced in the transverse direction, wherein the first major surface defines a perimeter, and
(ii) a layer of rigid foam insulation superimposed upon the first major surface of the vacuum insulation panel, and
(b) a plurality of mechanical fasteners transversely positioned over the vacuum insulated panel and secured to the layer of rigid foam insulation, wherein each mechanical fastener is aligned within a bore in the layer of rigid foam insulation that extends in the transverse direction.
2. The bolt-on thermal insulation panel assembly of claim 1 wherein the panel further comprises at least a casing configured and arranged for uniting the vacuum insulation panel and layer of rigid foam.
3. The bolt-on thermal insulation panel assembly of claim 1 wherein the thermal insulation panel has a thickness of between 2 and 10 cm.
4. The bolt-on thermal insulation panel assembly of claim 1 wherein the thermal insulation panel has a length of between 20 and 200 cm and a width of between 20 and 200 cm.
5. The bolt-on thermal insulation panel assembly of claim 1 wherein (i) the layer of rigid foam insulation has inward and outward facing major surfaces spaced in the transverse direction, (ii) the inward facing major surface defines a perimeter, and (iii) the perimeter of the rigid foam insulation is coterminous with the perimeter of the vacuum insulation panel.
6. A thermally insulated shipping container, comprising:
(a) a shell with inner surfaces defining a retention chamber and having a plurality of apertures therethrough, and
(b) at least two abutting bolt-on thermal insulation panel assemblies according to claim 5 bolted onto an inner surface of the shell via the plurality of mechanical fasteners on the bolt-on thermal insulation panel assembly.
7. The bolt-on thermal insulation panel assembly of claim 1 comprising at least three mechanical fasteners secured to the layer of rigid foam insulation.
8. The bolt-on thermal insulation panel assembly of claim 1 comprising at least four uniformly dispersed mechanical fasteners secured to the layer of rigid foam insulation.
9. The bolt-on thermal insulation panel assembly of claim 8 wherein the mechanical fasteners are closed end t-nuts.
10. The bolt-on thermal insulation panel assembly of claim 1 comprising at least six mechanical fasteners secured to the layer of rigid foam insulation.
11. The bolt-on thermal insulation panel assembly of claim 1 wherein the mechanical fasteners are t-nuts.
12. The bolt-on thermal insulation panel assembly of claim 11 wherein the t-nuts are secured to the layer of rigid foam insulation so as to resist rotation during threaded mating with a bolt.
13. A thermally insulated shipping container, comprising:
(a) a shell with inner surfaces defining a retention chamber and having a plurality of apertures therethrough, and
(b) at least four bolt-on thermal insulation panel assemblies according to claim 12 bolted onto an inner surface of the shell via bolts extending through the apertures in the shell and into threaded engagement with the t-nuts on the bolt-on thermal insulation panel assembly.
14. The bolt-on thermal insulation panel assembly of claim 1 wherein (i) the layer of rigid foam insulation has inward and outward facing major surfaces spaced in the transverse direction, and (ii) the mechanical fasteners are bolts that project outward from the outward facing major surface.
15. The bolt-on thermal insulation panel assembly of claim 14 wherein the bolts are flat head bolts.
16. The bolt-on thermal insulation panel assembly of claim 14 wherein the bolts are secured to the layer of rigid foam insulation so as to resist rotation during threaded mating with a nut.
17. The bolt-on thermal insulation panel assembly of claim 1 wherein (i) the layer of rigid foam insulation has inward and outward facing major surfaces spaced in the transverse direction, (ii) the bores in the layer of rigid foam insulation are through-holes, and (iii) the mechanical fasteners extend into the through-holes from the inner facing major surface.
18. The bolt-on thermal insulation panel assembly of claim 1 wherein the mechanical fasteners are embedded within the layer of rigid foam insulation whereby the mechanical fasteners are spaced from the first major surface of the vacuum insulated panel in the transverse direction.
19. A thermally insulated shipping container, comprising:
(a) a shell with inner surfaces defining a retention chamber and having a plurality of apertures therethrough, and
(b) at least one bolt-on thermal insulation panel assembly according to claim 1 bolted onto an inner surface of the shell via the plurality of mechanical fasteners on the bolt-on thermal insulation panel.
20. A method of shipping thermally labile goods, comprising the steps of:
(a) obtaining a thermally insulated shipping container according to claim 19 ,
(b) placing a payload of thermally conditioned thermally labile goods into the retention chamber of the thermally insulated shipping container to form a loaded shipping container,
(c) sealing the retention chamber of the loaded shipping container to form a sealed shipping container, and
(d) arranging for transport of the sealed shipping container to a different location.
21. A method of assembling a thermally insulated shipping container, comprising the steps of:
(a) obtaining a shell with inner surfaces defining a retention chamber and having a plurality of apertures therethrough,
(b) obtaining at least one bolt-on thermal insulation panel assembly according to claim 1 ,
(c) placing the at least one bolt-on thermal insulation panel assembly against an inner surface of the shell with the exposed major surface of the layer of rigid foam insulation facing the inner surface of the shell and at least two of the transverse bores in the layer of rigid foam insulation aligned with a corresponding aperture through the shell, and
(d) bolting the bolt-on thermal insulation panel assembly to the shell by rotating mated mechanical fasteners, each in threaded engagement with a mechanical fastener on the bolt-on thermal insulation panel assembly, from outside the retention chamber.