Vacuum insulation member, refrigerator having vacuum insulation member, and method for fabricating vacuum insulation member
Disclosed are a vacuum insulation member, a refrigerator having a vacuum insulation member, and a method for fabricating a vacuum insulation member. The vacuum insulation member includes: an envelope having gas impermeability and having a certain decompressed space therein; and a core having a certain shape, having an empty space formed therein, and disposed at an inner side of the envelope to support the envelope. The use of a glass fiber core can be avoided, and thus, employing equipment for preprocessing the glass fiber core and time required therefor can be restrained and fabrication can be facilitated.
1. A vacuum insulation member comprising:
an envelope having gas impermeability and having a certain decompressed space therein; and
a core having a certain shape, having an empty space formed therein, and disposed at an inner side of the envelope to support the envelope,
wherein the core comprises a body having at least one open side and a cover covering the open side of the body, and wherein the body has a box shape.
2. The vacuum insulation member of claim 1 , wherein ribs are disposed in a thicknesswise direction at an inner side of the body.
3. The vacuum insulation member of claim 2 , wherein the ribs are disposed to be perpendicular to each other.
4. The vacuum insulation member of claim 2 , wherein the ribs are disposed to cross each other.
5. The vacuum insulation member of claim 1 , wherein the core comprises a plurality of bodies and a plurality of covers.
6. The vacuum insulation member of claim 1 , further comprising: a getter disposed at the inner side of the envelope and absorbing a gas.
7. The vacuum insulation member of claim 1 , wherein a through portion is formed on the core to restrain a heat transmission.
8. The vacuum insulation member of claim 7 , wherein the through portion comprises a slit having a length longer than its width.
9. The vacuum insulation member of claim 7 , wherein the through portion is formed such that certain regions overlap with each other with respect to a thicknesswise direction.
10. The vacuum insulation member of claim 7 , wherein an internal vacuum degree of the envelope ranges from 10 −5 Torr to 10 −2 Torr.
11. The vacuum insulation member of claim 10 , wherein the envelope comprises a film main body and a metal laminated film including a laminated layer formed by laminating metal on an outer surface of the film main body.
12. A refrigerator comprising the vacuum insulation member of claim 1 .