# US 10,119,748 B2 · Vacuum insulation body

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- Number: US 10,119,748 B2
- Document ID: US10119748B2
- Status: Granted
- Kind: B2
- Application number: 14/908,921
- Filed: 2014-07-31
- Published: 2016-06-23
- Granted: 2018-11-06
- Earliest claimed: 2013-07-31
- Assignees: Liebherr-Hausgeraete Lienz GmbH; Liebherr-Hausgeraete Ochsenhausen GmbH
- Applicants: Liebherr-Hausgeraete Lienz GmbH; Liebherr-Hausgeraete Ochsenhausen GmbH
- Inventors: Thomas Gruidl; Jochen Hiemeyer; Martin Kerstner; Michael Freitag; Manfred Gradl
- Web page: https://patentgrep.com/patent/US10119748B2

## CPC

- F25D 23/065: {Details}
- F16L 59/06: Arrangements using an air layer or vacuum
- F25D 23/06: Walls (F25D23/08 takes precedence; containers with thermal insulation B65D81/38)
- F25D 23/062: {defining a cabinet}
- F25D 2201/14: using subatmospheric pressure
- F25D: REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR (refrigerated showcases A47F3/04; thermally-insulated vessels for domestic use A47J41/00; refrigerated vehicles, see the appropriate subclasses of classes B60 - B64; containers with thermal insulation in general B65D81/38; heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants, or materials for the production of heat or cold by chemical reactions other than by combustion C09K5/00; thermally-insulated vessels for liquefied or solidified gases F17C; air-conditioning or air-humidification F24F; refrigeration machines, plants, or systems F25B; cooling of instruments or comparable apparatus without refrigeration G12B)
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL

## Abstract

The present invention relates to a vacuum insulation body with at least one vacuum-tight film which surrounds a vacuum region with at least one supporting material arranged therein. At least one protective cover for protection of the film is provided, and a material leveling out film irregularities is included as well.

## Claims

### Claim 1

A refrigerator and/or freezer comprising:
at least one inner wall defining a cooled interior space,
at least one outer wall spaced from the at least one inner wall, and
at least one vacuum insulation body located in the space between the inner and outer walls, the vacuum insulation body comprising:
at least one vacuum-tight film which surrounds a vacuum region, and
at least one supporting material arranged in the vacuum region,
wherein a protective cover for protection of said film is formed by the outer wall,
wherein a layer of a plastic material is located between the film and the outer wall to level out irregularities between the film and the outer wall, whereby the plastic material between the film and the outer wall is applied in fluid form and curing of the plastic material is effected at the insulation body, and
wherein the refrigerator and/or freezer does not comprise any foam insulation between the outer and inner walls.

### Claim 2 (depends on 1)

The refrigerator and/or freezer according to claim 1, wherein the plastic material is a cast resin.

### Claim 3 (depends on 1)

The refrigerator and/or freezer according to claim 1, wherein the plastic material includes an epoxy resin or polyurethane.

### Claim 4 (depends on 1)

The refrigerator and/or freezer according to claim 1, wherein the layer thickness of the plastic material is below 5 mm.

### Claim 5 (depends on 1)

The refrigerator and/or freezer according to claim 1, wherein the layer of the plastic material has a thickness of less than 1 cm.

### Claim 6

A method of producing a refrigerator and/or freezer having at least one inner wall defining a cooled interior space, at least one outer wall spaced from the at least one inner wall, and at least one vacuum insulation body located in the space between the inner and outer walls, the vacuum insulation body comprising at least one vacuum-tight film which surrounds a vacuum region and which is protected by a protective cover formed by the outer wall, and at least one supporting material arranged in the vacuum region, the method comprising:
applying a plastic material in fluid form between the film and the outer wall to provide a plastic material layer located between the film and the outer wall to level out irregularities between the film and the outer wall, and
effecting curing of the plastic material applied in fluid form at the insulation body to produce the refrigerator and/or freezer without any foam insulation between the outer and inner walls.