Vacuum insulation panel and refrigerator including the same

Patent metadata

Field	Value
Publication number	US-9404684-B2
Application number	US-201414471018-A
Country	US
Kind code	B2
Filing date	Aug 28, 2014
Priority date	Dec 10, 2013
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

A vacuum insulation panel includes a core material, a first sheathing material disposed outside the core material, and a second sheathing material having different thermal conductivity from the first sheathing material, the second sheathing material being coupled to the first sheathing material to form a space to receive the core material.

First claim

What is claimed is:

1. A vacuum insulation panel comprising:
a core material;
a first sheathing material disposed outside the core material; and
a second sheathing material having different thermal conductivity from the first sheathing material, the second sheathing material being coupled to the first sheathing material to form a receiving space to receive the core material,
wherein the first sheathing material includes a fusion layer and a plurality of blocking layers stacked outside the fusion layer,
wherein each of the plurality of the blocking layers includes a base layer and a deposition layer provided on the base layer to block gas and moisture introduced into the core material,
a first blocking layer, of the plurality of blocking layers, facing the fusion layer includes a first base layer to surround the fusion layer and a first deposition layer located outside the first base layer, and
a second blocking layer, of the plurality of blocking layers, facing the first blocking layer includes a second deposition layer contacting the first deposition layer and a second base layer located outside the second deposition layer.

2. The vacuum insulation panel according to claim 1 , wherein the first sheathing material and the second sheathing material are coupled to form an extension extending outward from the receiving space.

3. The vacuum insulation panel according to claim 2 , wherein
the first sheathing material has lower thermal conductivity than the second sheathing material, and
the extension is bent such that the second sheathing material is located between the core material and the first sheathing material.

4. The vacuum insulation panel according to claim 1 , wherein
each of the first and second deposition layers includes aluminum, and
the second sheathing material comprises aluminum foil.

5. The vacuum insulation panel according to claim 1 , wherein
the core material comprises glass fibers, and
each of the glass fibers has a diameter of 3 to 6 um and a length of 20 to 70 nm.

6. The vacuum insulation panel according to claim 5 , wherein pores of about 30-80 um are formed between the glass fibers.

7. The vacuum insulation panel according to claim 1 , further comprising:
a getter provided in the core material to adsorb at least one selected from between gas and moisture introduced into the core material, wherein
the getter includes at least one selected from between a gas getter and a moisture getter.

8. The vacuum insulation panel according to claim 7 , wherein the gas getter comprises at least one selected from among Ba, Li, AI, Ti, V, Fe, Co, Zr, Pd, Mg, and Nb.

9. The vacuum insulation panel according to claim 7 , wherein 3 to 10 g of the moisture getter is contained per unit area (0.1 m 3 ) of the first sheathing material.

10. The vacuum insulation panel according to claim 9 , wherein
the moisture getter includes at least one selected from a chemical getter and a physical getter,
the chemical getter includes at least one selected from among CaO, BaO, MgO, and CaCl 2 , and
the physical getter includes at least one selected from among molecular sieve, active carbon, zeolite, active alumina, and MgCO 3 .

11. The vacuum insulation panel according to claim 10 , wherein
the chemical getter has a specific surface area of 10 m 2 /g or more, and
the physical getter has a specific surface area of 50 m 2 /g or more.

12. The vacuum insulation panel according to claim 7 , wherein
the getter includes a catalyst to improve activity of the getter, and
the catalyst includes at least one selected from among CeO 2 , CuO, Co 3 O 4 , PdO, and Se 0 2 .

13. The vacuum insulation panel according to claim 1 , wherein
the plurality of blocking layers further includes a third blocking layer,
wherein the third blocking layer includes:
a third deposition layer disposed outside the second base layer; and
a third base layer disposed outside the third deposition layer.

14. The vacuum insulation panel according to claim 1 , wherein at least one of the deposition layers has a thickness of 10 to 100nm.

15. The vacuum insulation panel according to claim 1 , wherein the second sheathing material comprises:
a sealing layer to surround the core material;
an inner layer provided outside the sealing layer;
a prevention layer located between the sealing layer and the inner layer; and
a protection layer disposed outside the inner layer to absorb external impact.

16. A refrigerator comprising:
an outer liner forming an external appearance of the refrigerator;
an inner liner provided in the outer liner to form a storage compartment; and
a vacuum insulation panel located between the outer liner and the inner liner, wherein the vacuum insulation panel includes:
a core material including glass fibers;
a getter provided in the core material to adsorb at least one selected from between gas and moisture introduced into the core material;
a first sheathing material disposed outside the core material so as to face an inner surface of the outer liner; and
a second sheathing material having higher thermal conductivity than the first sheathing material, the second sheathing material being coupled to the first sheathing material so as to face an outer surface of the inner liner to form a receiving space to receive the core material,
wherein the first sheathing material includes a fusion layer and a plurality of blocking layers stacked outside the fusion layer,
wherein each of the plurality of blocking layers includes a base layer and a deposition layer provided on the base layer to block gas and moisture introduced into the core material,
a first blocking layer, of the plurality of blocking layers, facing the fusion layer includes a first base layer to surround the fusion layer and a first deposition layer located outside the first base layer, and
a second blocking layer, of the plurality of blocking layers, facing the first blocking layer includes a second deposition layer contacting the first deposition layer and a second base layer located outside the second deposition layer.

17. The refrigerator according to claim 16 , wherein
the first sheathing material and the second sheathing material are coupled to form an extension extending outward from the receiving space, and
the extension is bent toward the inner liner such that the second sheathing material is located between the core material and the first sheathing material.

18. The refrigerator according to claim 16 , wherein each of the glass fibers has a diameter of 3 to 6 um and a length of 20 to 70 nm.

19. The refrigerator according to claim 16 , wherein
the getter includes a gas getter and a moisture getter,
the gas getter includes at least one selected from among Ba, Li, Al, Ti, V, Fe, Co, Zr, Pd, Mg, and Nb, and
the moisture getter includes a chemical getter including at least one selected from among CaO, BaO, MgO, and CaCl 2 , and a physical getter including at least one selected from among molecular sieve, active carbon, zeolite, active alumina, and MgCO 3 .

20. The refrigerator according to claim 16 , wherein
the getter includes a catalyst to improve activity of the getter, and
the catalyst includes at least one selected from among CeO 2 , CuO, Co 3 O 4 , PdO, and SeO 2 .

21. The refrigerator according to claim 16 , wherein
the first and second deposition layers include aluminum.

22. The refrigerator according to claim 21 , wherein at least one of the deposition layers has a t

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jang Choong Hyo
• Kim Hyung Sung
• Yook Se Won
• Kal Seung Hoon
• Oh Seung Jin

Classifications

• Y10T428/12611

  Oxide-containing component · CPC title

• B32B15/043

  of metal (B32B15/01 takes precedence) · CPC title

• B32B2509/10

  Refrigerators or refrigerating equipment · CPC title

• Y10T428/12597

  Noncrystalline silica or noncrystalline plural-oxide component [e.g., glass, etc.] · CPC title

• B32B2311/24

  Aluminium · CPC title