The present invention provides a refrigerator with improved refrigerator box strength and high heat insulating performance, which is configured such that external deformation due to entry of air into a vacuum heat insulating material, the entry of air being caused by aging degradation, is prevented.
The present invention provides a refrigerator with improved refrigerator box strength and high heat insulating performance, which is configured such that external deformation due to entry of air into a vacuum heat insulating material, the entry of air being caused by aging degradation, is prevented. The present invention includes: a heat-insulated box including an inner casing and an outer casing, in which space between the inner casing and the outer casing is filled with a foamed heat insulating material; and a vacuum heat insulating material disposed in at least a side wall of the heat-insulated box together with the foamed heat insulating material, the vacuum heat insulating material including an outer skin material, the outer skin material including at least a core material and being decompression-sealed. The vacuum heat insulating material includes a gas adsorbent. Since the vacuum heat insulating material including the gas adsorbent is included in the side wall, which tends to be greatly distorted among the heat insulating walls of the refrigerator, the rigidity of the side wall is improved and aging degradation of the vacuum heat insulating material is suppressed. As a result, the rigidity of the heat-insulated box can be maintained for a long term, and external deformation of the outer casing of the body can be prevented.
대표청구항▼
1. A refrigerator comprising: a heat-insulated box including an inner casing and an outer casing, in which space between the inner casing and the outer casing is filled with a foamed heat insulating material; anda vacuum heat insulating material disposed in the heat-insulated box together with the f
1. A refrigerator comprising: a heat-insulated box including an inner casing and an outer casing, in which space between the inner casing and the outer casing is filled with a foamed heat insulating material; anda vacuum heat insulating material disposed in the heat-insulated box together with the foamed heat insulating material, the vacuum heat insulating material including an outer skin material, the outer skin material including at least a core material and being decompression-sealed,wherein the vacuum heat insulating material includes a gas adsorbent, and the vacuum heat insulating material is included in at least a side wall of the heat-insulated box,the vacuum heat insulating material has a rectangular plate shape and includes a core-less portion in at least one of four corners of the vacuum heat insulating material, the core-less portion not including the core material,the core-less portion is folded back along a folding line that is a straight line crossing two sides of the vacuum heat insulating material, the two sides forming the at least one corner, such that the at least one of four corners includes a multi-layered portion, andthe gas adsorbent is disposed at a position away from the multi-layered portion. 2. The refrigerator according to claim 1, wherein the vacuum heat insulating material including the gas adsorbent is disposed in both left and right side walls of the heat-insulated box, anda main surface of the vacuum heat insulating material disposed in the left side wall has an area equal to that of a main surface of the vacuum heat insulating material disposed in the right side wall. 3. The refrigerator according to claim 1, wherein the vacuum heat insulating material including the gas adsorbent is disposed in a back wall of the heat-insulated box. 4. The refrigerator according to claim 1, wherein the heat-insulated box is provided with a heat generating portion, andthe gas adsorbent included in the vacuum heat insulating material is positioned not to be adjacent to the heat generating portion of the heat-insulated box. 5. The refrigerator according to claim 1, wherein the heat-insulated box is provided with a heat generating portion, andthe gas adsorbent included in the vacuum heat insulating material is positioned not to overlap the heat generating portion of the heat-insulated box in a thickness direction of the vacuum heat insulating material. 6. The refrigerator according to claim 4, wherein the heat-insulated box is provided with a refrigeration cycle, the refrigeration cycle including a compressor, heat radiation piping included in a condenser, a capillary tube, and a cooling device, andthe heat generating portion is the heat radiation piping. 7. The refrigerator according to claim 6, wherein the heat radiation piping is disposed on a surface of the vacuum heat insulating material, andthe gas adsorbent is disposed between at least two heat radiation pipes of the heat radiation piping. 8. The refrigerator according to claim 7, wherein the gas adsorbent is disposed on a surface of the vacuum heat insulating material, the surface being positioned at an opposite side to the surface on which the heat radiation piping is disposed. 9. A vacuum heat insulating material for use in a refrigerator, which is included in the refrigerator according to claim 1. 10. A refrigerator comprising: a heat-insulated box including an inner casing and an outer casing, in which space between the inner casing and the outer casing is filled with a foamed heat insulating material; anda vacuum heat insulating material disposed in the heat-insulated box together with the foamed heat insulating material, the vacuum heat insulating material including an outer skin material, the outer skin material including at least a core material and being decompression-sealed,wherein the vacuum heat insulating material includes a gas adsorbent, and the vacuum heat insulating material is included in at least a side wall of the heat-insulated box,the heat-insulated box includes a plurality of vacuum heat insulating materials having different respective degrees of vacuum,a top surface and a back surface of the heat-insulated box are demarcated by a first top surface portion and a first back surface portion, respectively, and a recess is formed in a top portion of the heat-insulated box at the back surface side,the recess is provided at the back surface side of the first top surface portion and positioned lower than the first top surface portion, the recess including a second top surface portion and a second back surface portion, the second top surface portion being connected to a top of the first back surface portion, the second back surface portion connecting the first top surface portion and the second top surface portion,a compressor is disposed on the second top surface portion of the recess, andthe vacuum heat insulating material including the gas adsorbent is disposed in the second back surface portion and/or the second top surface portion. 11. The refrigerator according to claim 10, wherein the vacuum heat insulating material including the gas adsorbent is disposed in one of heat insulating walls forming the second back surface portion and the second top surface portion, the one heat insulating wall having a less thickness than the other one of the heat insulating walls. 12. The refrigerator according to claim 10, wherein the vacuum heat insulating material including the gas adsorbent is disposed in one of heat insulating walls forming the second back surface portion and the second top surface portion, the one heat insulating wall having a larger area of projection onto an interior of the refrigerator than the other one of the heat insulating walls when each heat insulating wall is seen in a thickness direction thereof. 13. The refrigerator according to claim 10, wherein the vacuum heat insulating material including the gas adsorbent is disposed in one of heat insulating walls forming the second back surface portion and the second top surface portion, the one heat insulating wall being closer in distance to the compressor than the other one of the heat insulating walls.
Fujimori, Yosuke; Nakano, Hideaki; Yamamoto, Nobuo; Abiko, Syohei; Hanaki, Takayuki, Vacuum thermal insulating material and method of manufacturing the same, and thermal insulating box having the vacuum thermal insulating material.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.