Vacuum insulation panel, method of manufacturing vacuum insulation panel, and refrigerator including vacuum insulation panel

Patent metadata

Field	Value
Publication number	US-10337787-B2
Application number	US-201615549955-A
Country	US
Kind code	B2
Filing date	Feb 4, 2016
Priority date	Feb 9, 2015
Publication date	Jul 2, 2019
Grant date	Jul 2, 2019

Abstract

Disclosed is a refrigerator including a vacuum insulation panel. The vacuum insulation panel includes a core material, a covering material disposed outside the core material to form an accommodation space in which the core material is accommodated and a first adsorbent disposed in the accommodation space to be activated at a temperature higher than room temperature and to remove at least one of gases and water present in the accommodation space.

First claim

The invention claimed is:

1. A refrigerator comprising a vacuum insulation panel, wherein the vacuum insulation panel comprises:
a core material;
a covering material disposed outside the core material to form an accommodation space in which the core material is accommodated;
a first adsorbent disposed in the accommodation space to be activated at a temperature higher than room temperature and to remove at least one of gases and water present in the accommodation space;
a path on which an electromagnetic wave moves toward the adsorbent; and
a shielding layer disposed in the accommodation space to prevent at least one of gases and water from penetrating the accommodation space, and having a portion discontinuously disposed in a longitudinal direction of the vacuum insulation panel to be positioned outside the path.

2. The refrigerator of claim 1 , wherein the first adsorbent comprises a metal material.

3. The refrigerator of claim 2 , wherein the first adsorbent comprises at least one of zirconium (Zr), titanium (Ti), aluminum (Al), vanadium (V), barium (Ba), nickel (Ni), and ferrite (Fe).

4. The refrigerator of claim 1 , wherein the vacuum insulation panel further comprises a second adsorbent disposed in the accommodation space to remove water present in the accommodation with the first adsorbent.

5. The refrigerator of claim 4 , wherein the second adsorbent comprises at least one of calcium oxide (CaO), magnesium carbonate (MgCO 3 ), barium oxide (BaO), molecular sieve, magnesium oxide (MgO), calcium chloride (CaCl 2 ), activated carbon, silica gel, activated alumina, and zeolite.

6. The refrigerator of claim 1 , wherein the vacuum insulation panel further comprises a porous cover which encloses the first adsorbent to prevent heat generated by the first activated adsorbent from being transferred to the core material.

7. The refrigerator of claim 6 , wherein a material of the cover comprises at least one of organic fiber and inorganic fiber.

8. A vacuum insulation panel comprising:
a core material;
a covering material disposed outside the core material to form an accommodation space in which the core material is accommodated;
an adsorbent disposed in the accommodation space to be activated at a temperature higher than room temperature by an electromagnetic wave generated outside the covering material and to remove at least one of gases and water present in the accommodation space;
a path on which the electromagnetic wave moves toward the adsorbent; and
a shielding layer disposed in the accommodation space to prevent at least one of gases and water from penetrating the accommodation space, and having a first portion discontinuously disposed in a longitudinal direction of the vacuum insulation panel to be positioned outside the path.

9. The vacuum insulation panel of claim 8 , wherein the adsorbent is spaced apart from the covering material.

10. The vacuum insulation panel of claim 8 , wherein the adsorbent comprises a metal material.

11. The vacuum insulation panel of claim 8 , wherein the covering material comprises:
a first covering material that comprises a part through which the electromagnetic wave passes; and
a second covering material coupled with the first covering material to form the accommodation space.

12. The vacuum insulation panel of claim 11 , wherein the first covering material comprises:
a melting layer disposed to face the accommodation space in a thickness direction of the vacuum insulation panel;
an inflow-prevention layer disposed on the melting layer to prevent at least one of gases and water from flowing toward the core material; and
a protection layer disposed to face the melting layer with the inflow-prevention layer therebetween,
wherein the inflow-prevention layer comprises at least one of silicon dioxide (SiO 2 ), alumina (Al 2 O 3 ), ethylene vinyl alcohol (EVOH), polyvinyl alcohol (PVA), and polyketone.

13. The vacuum insulation panel of claim 12 , wherein the shielding layer is disposed in the accommodation space between the core material and the melting layer.

14. The vacuum insulation panel of claim 13 , wherein the shielding layer includes a second portion positioned on the path and is formed of a material that less absorbs the electromagnetic wave than the adsorbent.

15. The vacuum insulation panel of claim 14 , wherein the first portion of the shielding layer positioned outside the path comprises a metal material.

16. A vacuum insulation panel comprising:
a core material;
a covering material disposed outside the core material to form an accommodation space in which the core material is accommodated;
a first adsorbent disposed in the accommodation space, spaced apart from the covering material, and heated at a temperature higher than room temperature to remove at least one of gases and water present in the accommodation space;
a path on which an electromagnetic wave moves toward the adsorbent; and
a shielding layer disposed in the accommodation space to prevent at least one of gases and water from penetrating the accommodation space, and having a portion discontinuously disposed in a longitudinal direction of the vacuum insulation panel to be positioned outside the path.

17. The vacuum insulation panel of claim 16 , wherein the first adsorbent is activated at a temperature higher than room temperature by an electromagnetic wave generated outside the covering material.

18. The vacuum insulation panel of claim 17 , wherein at least one part of the covering material has a lower electromagnetic wave absorption rate than that of the first adsorbent.

19. The vacuum insulation panel of claim 17 , further comprising an electromagnetic wave movement path on which the electromagnetic wave moves toward the first adsorbent to be transferred to the first adsorbent,
wherein the covering material comprises:
a first covering material that comprises a part through which the electromagnetic wave passes; and
a second covering material coupled with the first covering material to form the accommodation space.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kal Seung Hoon
• Yook Se Won
• Park Jin Hyun
• Jung Hae Yong

Classifications

• F25D2201/14

  using subatmospheric pressure · CPC title

• F25D23/06 Primary

  Walls (F25D23/08 takes precedence; containers with thermal insulation B65D81/38) · CPC title

• B32B17/02

  in the form of fibres or filaments · CPC title

• Y10T428/231

  Filled with gas other than air; or under vacuum · CPC title

• B32B17/067

  of fibres or filaments · CPC title