초록 ▼

A refrigeration appliance includes a thermally insulating housing and a thermally insulating door. At least one of the housing and the door define an evacuated interspace and have an evacuated thermal insulation filling the interspace, a shaped, thermoplastic, substantially gas and water vapor imper

A refrigeration appliance includes a thermally insulating housing and a thermally insulating door. At least one of the housing and the door define an evacuated interspace and have an evacuated thermal insulation filling the interspace, a shaped, thermoplastic, substantially gas and water vapor impermeable outer cladding, and a shaped, thermoplastic, substantially gas and water vapor impermeable inner cladding. The inner cladding and the outer cladding substantially surround the interspace in a vacuum-tight manner. The cladding can be formed from polyolefins, polyvinylidene chloride, perfluoroalkoxy polymers. For reducing gas permeability, the cladding can be formed from ethylene/vinyl alcohol copolymer, polyacrylonitrile, and polyamide. The claddings can have co-extruded and/or laminated layers. The cladding can include a sputtered metal layer and/or a plastic/metal composite foil. The cladding can be formed from a thermoformed or blow-molded plastic. The insulation can have pressed silica or aerogel plates with a density of between 100 and 150 kg/m3.

대표청구항 ▼

We claim: 1. A door for a refrigeration appliance comprising: a rigid, shaped, thermoplastic, substantially gas and water impermeable outer cladding making up a part of a wall of a door; a rigid, shaped, thermoplastic, substantially gas and water impermeable inner cladding making up a part of a wal

We claim: 1. A door for a refrigeration appliance comprising: a rigid, shaped, thermoplastic, substantially gas and water impermeable outer cladding making up a part of a wall of a door; a rigid, shaped, thermoplastic, substantially gas and water impermeable inner cladding making up a part of a wall of a door; said outer cladding and inner cladding joined together in a substantial vacuum tight manner to form said door with an interspace defined between said joined outer cladding and inner cladding and being evacuated; and evacuable thermal insulation material filling said interspace. 2. The door according to claim 1, further comprising a layer adhered on a side of the outer cladding and the inner cladding facing said interspace and resisting water vapor permeability and gas permeability through the door. 3. The door according to claim 2, wherein said layer is formed from at least one of the group consisting of polyolefins, polyvinylidene chloride, perfluoroalkoxy polymers, ethylene/vinyl alcohol copolymer, polyacrylonitrile and polyamide. 4. The door according to claim 2, wherein said layer is formed from a plastic/metal composite foil. 5. The door according to claim 1, wherein said inner cladding and said outer cladding have a thickness of about 0.5 mm to about 2.5 mm. 6. A refrigeration appliance, comprising: a housing having five walls defining a refrigeration space, and an opening into the refrigeration space; a door fitted on said housing at the opening into the refrigeration space for closing off the refrigeration space; said walls of said housing and said door each comprising a rigid, shaped, thermoplastic, substantially gas and water impermeable outer cladding, a rigid, shaped, thermoplastic, substantially water impermeable inner cladding, said inner cladding and outer cladding for each wall and for the door joined together in a substantial vacuum tight manner to form each one of the walls and the door, with an interspace defined between said inner cladding and said outer cladding and being evacuated for each one of said walls and said door, and evacuable thermal insulation materials filling the respective interspaces. 7. The refrigeration appliance according to claim 6, further comprising a layer adhered on a side of the outer cladding and the inner cladding facing said interspace and resisting water vapor permeability and gas permeability through the walls and door. 8. The refrigeration appliance according to claim 7, wherein said layer is formed from at least one of the group consisting of polyolefins, polyvinylidene chloride, perfluoroalkoxy polymers, ethylene/vinyl alcohol copolymer, polyacrylonitrile and polyamide. 9. The refrigeration appliance according to claim 7, wherein said layer is formed from a plastic/metal composite foil. 10. The refrigeration appliance according to claim 6, wherein said inner cladding and said outer cladding have a thickness of about 0.5 mm to about 2.5 mm. 11. A refrigeration appliance, comprising: a housing having multiple walls defining an internal useful space, and an opening into the useful space; a door fitted on said housing at the opening into the useful space for closing off the useful space; said walls of said housing and said door each comprising: a rigid outer cladding having an outer cladding internal surface facing inwardly toward the useful space and an outer cladding external surface facing outwardly away from the useful space and at least partially forming an external outer shell of the housing exposed to ambient air; a rigid inner cladding having an inner cladding internal surface facing outwardly away from the useful space and an inner cladding external surface facing inwardly toward the useful space and being exposed to the useful space; a first layer being substantially water impermeable and covering the outer cladding internal surface and the inner cladding internal surface; a second layer being substantially gas impermeable and covering the outer cladding internal surface and the inner cladding internal surface; an interspace defined between the inner and outer claddings and being evacuated to provide a vacuum insulated region; and a thermal insulation material disposed within the interspace. 12. The refrigeration appliance according to claim 11, wherein the inner and outer claddings are formed from a thermoplastic material. 13. The refrigeration appliance according to claim 11, wherein the inner and outer claddings are formed from a metal material. 14. The refrigeration appliance according to claim 11, wherein the first layer is formed from a material including at least one polyolefins, high-density polyethylene, polypropylene, polyvinylidene chloride, and perfluoroalkoxy polymers. 15. The refrigeration appliance according to claim 11, wherein the second layer is formed from a material including at least one of ethylene/vinyl alcohol copolymer, polyacrylonitrile, and polyamide. 16. The refrigeration appliance according to claim 11, wherein each first layer is disposed between the respective second layer and corresponding one of the outer and inner claddings. 17. The refrigeration appliance according to claim 11, wherein the first layers are bonded to the inner and outer claddings and the second layers are bonded over the first layer.