Vacuum Insulation Body

• US 20160178269A1
• Filed: 07/31/2014
• Published: 06/23/2016
• Est. Priority Date: 07/31/2013
• Status: Active Grant

• Current Assignee: Liebherr Hausgeraete Lienz GmbH (Liebherr-International AG), Liebherr-Hausgerate Ochsenhausen GmbH (Liebherr-International AG)
• Original Assignee: Liebherr Hausgeraete Lienz GmbH (Liebherr-International AG), Liebherr-Hausgerate Ochsenhausen GmbH (Liebherr-International AG)
• Inventors: HIEMEYER, Jochen, FREITAG, Michael, KERSTNER, Martin
• Granted Patent: US 10,295,247 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F16L 59/065 using vacuum F16L59/075 takes precedence
• CPC Class Codes: F25D 2201/14 using subatmospheric pressure
• CPC Class Codes: F25D 23/06 Walls F25D23/08 takes precedence; containers with thermal insulation B65D81/38
• CPC Class Codes: F25D 23/061 with conduit means
• CPC Class Codes: F25D 23/062 defining a cabinet
• CPC Class Codes: F27B 5/04 adapted for treating the charge in vacuum or special atmosphere
• CPC Class Codes: Y10T 428/231 Filled with gas other than air; or under vacuum

Abstract

A vacuum insulation body includes at least one vacuum-tight casing and at least one vacuum region surrounded by the casing. The casing is provided with at least one opening, in particular with at least one evacuation port, for evacuating the vacuum region. At least one adsorbent material is present in the vacuum insulation body. The adsorbent material is partly or completely arranged in the region of the opening.

Claims

1. A vacuum insulation body comprising:

at least one vacuum-tight casing, with at least one vacuum region surrounded by the casing, and

at least one adsorbent material is present in the vacuum insulation body,

wherein the casing is provided with at least one opening forming an evacuation port for evacuating the vacuum region, and

wherein the at least one adsorbent material is partly or completely is arranged in the region of said opening.

5. The vacuum insulation body according to claim 1, wherein the adsorbent material forms a flow distributor.

6. The vacuum insulation body according to claim 1, further comprising at least one heating device provided therewith or connected thereto.

7. The vacuum insulation body according to claim 1, wherein the adsorbent material is arranged such that it surrounds the opening.

8. The vacuum insulation body according to claim 1, wherein the adsorbent material is arranged in a region adjacent to the opening.

9. The vacuum insulation body according to claim 1, wherein the adsorbent material is arranged such that gas passing through the opening passes through the adsorbent material during vacuum generation.

10. The vacuum insulation body according to claim 6, wherein the heating device is arranged such that the entire vacuum insulation body can be heated by the heating device.

11. The vacuum insulation body according to claim 1, wherein the adsorbent material is formed to adsorb at least one of water, nitrogen, and oxygen, and/or from at least one getter and/or zeolite.

12. A refrigerator and/or freezer appliance comprising:

at least one body with at least one cooled interior space surrounded by the body, and

at least one closure element by which the cooled interior space can be closed,

wherein, between the cooled interior space and an outer wall of the appliance, at least one interspace is located, and

wherein at least one vacuum insulation body according to claim 1 is arranged in the interspace.

13. A method for generating a vacuum in a vacuum insulation body according to claim 1, comprising:

evacuating the vacuum region, and

effecting heating of at least a partial region of the vacuum insulation body prior to or while evacuating the vacuum region.

17. The vacuum insulation body according to claim 6, wherein the heating device is located outside the casing.

2. A vacuum insulation body comprising:

at least one vacuum-tight casing, with at least one vacuum region surrounded by the casing, and

at least one flow distributor,

wherein the casing is provided with at least one opening forming an evacuation port for evacuating the vacuum region, and

wherein the at least one flow distributor serves to increase an effective evacuation cross-section.

3. The vacuum insulation body according to claim 2, wherein the flow distributor includes a plurality of individual bodies.

4. The vacuum insulation body according to claim 2, wherein the flow distributor is formed by an adsorbent material.

14. The vacuum insulation body according to claim 3, wherein the individual bodies are individual spheres.

15. The vacuum insulation body according to claim 3, wherein the individual bodies are included in a pebble bed.

16. The vacuum insulation body according to claim 2, wherein the flow distributor is arranged such that it surrounds the opening.

18. The vacuum insulation body according to claim 2, wherein the flow distributor is arranged such that gas passing through the opening passes through the flow distributor during vacuum generation.

19. A refrigerator and/or freezer appliance comprising:

at least one body with at least one cooled interior space surrounded by the body, and

at least one closure element by which the cooled interior space can be closed,

wherein, between the cooled interior space and an outer wall of the appliance, at least one interspace is located, and

wherein at least one vacuum insulation body according to claim 2 is arranged in the interspace.

20. The vacuum insulation body according to claim 2, wherein the flow distributor is adsorbent material arranged in a region adjacent to the opening.