JP2019020095A - Vacuum insulation casing and refrigerator - Google Patents

Abstract

To provide a vacuum insulation housing suppressing generation of due condensation while reducing deterioration of esthetic appearance due to a grip part.SOLUTION: A vacuum insulation housing 10 includes: a case 20 having a first main surface 21, a second main surface 22 located on a side opposite to the first main surface and a side surface 23 connecting the first main surface and the second main surface; and a vacuum insulation material 50 housed in an inside space of the case. The case includes: an attachment part for a gasket extending over the whole periphery along its outer peripheral edge 21a of the first main surface; a recessed part 33 recessed on the side of the inside space from at least either one surface of the first main surface, the second main surface and the side surface; and a grip part 33a fitted to a wall surface defining the recessed part. The recessed part is disposed on the outer peripheral edge side nearer than the center of the attachment part in a direction orthogonal to a direction where the attachment part extends and also parallel to the first main surface.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vacuum heat insulating casing and a refrigerator.

  Conventionally, the refrigerator shown in patent document 1 is known as an example using a vacuum heat insulation case. The door of the refrigerator includes an outer box, an inner box, and a vacuum heat insulating material accommodated in the outer box, and a U-shaped handle is attached to the outer box.

JP 2014-52111 A

  In the refrigerator of the above-mentioned patent document 1, since the handle protrudes from the outer box, the beauty is impaired. On the other hand, it is also possible to form a handle by recessing the outer box. However, by denting the outer box, the thickness of the vacuum heat insulating material accommodated therein becomes thin and the heat insulating performance is lowered, so that the door may be condensed.

  This invention is made | formed in view of the said subject, and it aims at providing the vacuum heat insulation housing | casing which can suppress generation | occurrence | production of dew condensation, reducing the fall of the beauty | look by a handle part.

  The vacuum heat insulation housing according to the first aspect of the present invention includes a first main surface, a second main surface opposite to the first main surface, and the first main surface and the second main surface. A gasket having a side surface to be joined, and a vacuum heat insulating material accommodated in the internal space of the case, wherein the case extends on the entire circumference along the outer peripheral edge of the first main surface. And a recess recessed from at least one of the first main surface, the second main surface, and the side surface toward the internal space, and a handle portion provided on the wall surface defining the recess. And the said recessed part is a direction orthogonal to the direction where the said attachment part is extended, and is arrange | positioned in the said outer peripheral side rather than the center of the said attachment part in the direction parallel to the said 1st main surface.

  According to this structure, since a handle part does not protrude from the 2nd main surface, the fall of the aesthetics by a handle part is reduced. Further, since the temperature drop of the first main surface on the outer peripheral edge side of the mounting portion is reduced by the gasket attached by the mounting portion, even if the thickness of the vacuum heat insulating material is reduced by the concave portion, the vacuum heat insulating casing due to the temperature difference The occurrence of condensation can be suppressed.

  The vacuum heat insulating housing according to a second aspect of the present invention is the vacuum heat insulating casing according to the first aspect, further comprising a throat portion protruding on the first main surface on the side opposite to the inner space side, the attachment portion, the handle portion, and The throat portion may be integrally formed. According to this structure, the attaching part, the handle part, and the throat part are separately formed, and the work of attaching them is not necessary.

  The vacuum heat insulation casing according to a third aspect of the present invention is the vacuum insulation casing according to the first aspect, further comprising a throat portion protruding on the first main surface opposite to the inner space side, the attachment portion and the throat portion; May be formed integrally, and the handle portion may be formed of a separate member from the attachment portion and the throat portion. According to this structure, a handle part can be formed with a material etc. different from an attaching part and a throat part, and the choice of a handle part increases.

  The vacuum heat insulating housing according to a fourth aspect of the present invention is the vacuum heat insulating casing according to any one of the first to third aspects, wherein the concave portion is disposed without overlapping the attachment portion when viewed from a direction orthogonal to the first main surface. May be. According to this structure, generation | occurrence | production of the dew condensation of the vacuum heat insulation housing | casing by a temperature difference can be suppressed further reliably.

  The vacuum heat insulating casing according to a fifth aspect of the present invention is the vacuum heat insulating casing according to any one of the first to third aspects, wherein the concave portion is disposed so as to overlap the mounting portion when viewed from a direction orthogonal to the first main surface. May be.

  The vacuum heat insulating casing according to a sixth aspect of the present invention is the member according to any one of the first to fifth aspects, wherein the vacuum heat insulating material is formed by a laminated portion of a resin layer made of a thermoplastic resin and a gas barrier layer. The housing member may contain a core material, and may have a shape along the surface of the case on the inner space side. According to this structure, the thickness of a vacuum heat insulation housing | casing can be made thin, maintaining the heat insulation performance of a vacuum heat insulation housing | casing.

  The refrigerator which concerns on the 7th aspect of this invention is equipped with the vacuum heat insulation housing | casing in any one of the 1st-6th. According to this structure, generation | occurrence | production of dew condensation of a vacuum heat insulation housing | casing can be suppressed, reducing the fall of the aesthetics by a handle part.

  According to the vacuum heat insulating casing of the present invention, it is possible to suppress the occurrence of condensation while reducing the decrease in aesthetic appearance due to the handle portion.

FIG. 1 is a cross-sectional view schematically showing a refrigerator provided with a vacuum heat insulating housing according to an embodiment of the present invention as a drawer door. FIG. 2 is a perspective view of the drawer door of FIG. 1 viewed from the front side. FIG. 3 is a perspective view of the drawer door of FIG. 1 viewed from the back side. FIG. 4 is a cross-sectional view showing the vacuum heat insulating housing of FIG. FIG. 5 is a cross-sectional view showing a part of the vacuum heat insulating housing of FIG. FIG. 6 is a cross-sectional view showing a part of a vacuum heat insulating casing according to another embodiment of the present invention. 7 (a) to 7 (d) are cross-sectional views showing a part of a vacuum heat insulating casing according to still another embodiment of the present invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In all the drawings, the same or corresponding parts are denoted by the same reference numerals, and redundant description may be omitted. Moreover, in all drawings, the component for demonstrating this invention is extracted and shown in figure, and illustration may be abbreviate | omitted about another component. Furthermore, the present invention is not limited to the following embodiments. Moreover, in each drawing, although each direction of up, down, left, right, front, and back is shown, the direction of a vacuum heat insulation housing | casing is not limited to this.

(Embodiment 1)
Hereinafter, an example of the vacuum heat insulating casing 10 according to the first embodiment will be described with reference to FIGS. Hereinafter, the case where the vacuum heat insulation housing | casing 10 is applied to the drawer door 12 of the refrigerator 11 is demonstrated. However, the vacuum heat insulating housing 10 is not limited to this, and can be applied to doors such as a revolving door of the refrigerator 11 and doors other than the refrigerator 11.

  As shown in FIG. 1, the refrigerator 11 includes a main body 13 and a drawer door 12. The main body 13 is open at the front and has an internal space (inside the cabinet). The interior of the cabinet is divided into a plurality of sections by partitions 14 and the like.

  The drawer door 12 is attached to the main body 13 so that the front opening of the section of the main body 13 can be opened and closed, and has a vacuum heat insulating casing 10 and a gasket 15. The front surface of the vacuum heat insulating casing 10 always appears outside from the front opening of the main body 13 of the refrigerator 11. The rear surface of the vacuum heat insulating housing 10 faces the front side of the main body 13 of the refrigerator 11. Since the gasket 15 is arranged between the rear surface of the vacuum heat insulating housing 10 and the front surface of the main body 13 so as to surround the front opening of the section of the main body 13, airtightness between them is ensured. .

  As shown in FIGS. 2 and 3, the vacuum heat insulating housing 10 includes a case 20. The case 20 has a substantially rectangular parallelepiped shape with a small thickness, and the first main surface 21, the second main surface 22 on the opposite side of the first main surface 21, and the first main surface 21 and the second main surface 22. The side surface 23 is connected. The first main surface 21 constitutes the rear surface of the vacuum heat insulating housing 10, the second main surface 22 forms the front surface of the vacuum heat insulating housing 10, and the side surface 23 forms the side surface of the vacuum heat insulating housing 10. .

  The case 20 includes an inner box part 30 and an outer box part 40. The outer box portion 40 has a rectangular flat plate shape and is formed of a glass plate or the like. The outer surface of the outer box portion 40 constitutes the second main surface 22 of the case 20.

  The inner box portion 30 is box-shaped and has a wall portion 31 and a frame portion 32. The wall portion 31 has a rectangular flat plate shape, and the frame portion 32 rises from the end of the wall portion 31. The outer surface of the wall portion 31 constitutes the first main surface 21 of the case 20, and the outer surface of the frame portion 32 constitutes the side surface 23 of the case 20. A concave portion 33 is provided on the side surface 23, and a groove portion 34 and a throat portion 35 are provided on the first main surface 21.

  The groove portion 34 is an attachment portion of the gasket 15 provided in an annular shape on the first main surface 21, and extends over the entire circumference along the outer peripheral edge 21 a of the first main surface 21. The groove 34 is formed to be recessed toward the internal space of the case 20. The gasket 15 is a frame formed of a material having heat insulating properties and flexibility such as rubber, and is attached to the inner box portion 30 by being fitted in the groove portion 34.

  The recess 33 is recessed from the frame portion 32 (side surface 23 of the case 20) toward the internal space of the case 20. For example, a recess 33 is provided on the upper side surface 23a of the side surfaces 23 of the four cases 20, and the recess 33 extends in the extending direction of the upper side surface 23a. The concave portion 33 is surrounded by the end portion 31 a of the wall portion 31 of the inner box portion 30, the plate portion 37 and the pair of side portions 38, 38 of the frame portion 32 of the inner box portion 30. The pair of side portions 38, 38 define a recess 33 in the left-right direction. However, the pair of side portions 38, 38 may not be provided, and the recess 33 may extend the entire length of the upper side surface 23 a of the inner box portion 30 in the left-right direction.

  The throat portion 35 protrudes from the first main surface 21 of the case 20 to the side opposite to the inner space side, and protrudes rearward from the wall portion 31 of the inner box portion 30 in this embodiment. The throat portion 35 is disposed closer to the center side of the wall portion 31 than the groove portion 34 (on the side opposite to the outer peripheral edge 21a side of the first main surface 21), and extends annularly along the groove portion 34 over the entire circumference. Yes. The throat portion 35 protrudes inward from the gap between the first main surface 21 and the main body 13 when the vacuum heat insulating casing 10 closes the main body 13 of the refrigerator 11 (FIG. 1). This prevents the cold air from leaking through the gap.

  In addition to the vacuum heat insulating housing 10 and the gasket 15, the drawer door 12 further includes a frame 16. The frame 16 is fixed to the first main surface 21 of the case 20 by a fixing tool such as a screw 17. The vacuum heat insulating casing 10 is provided by the frame 16 so as to be drawn out from the main body 13 of the refrigerator 11 (FIG. 1).

  As shown in FIG. 4, in the vacuum heat insulating housing 10, the inner box part 30 has an opening (first opening), and the outer box part 40 is attached to the inner box part 30 so as to close the first opening. It has been. Thereby, the internal space of the case 20 constituted by the inner box part 30 and the outer box part 40 is closed. This internal space is surrounded by the first main surface 21, the second main surface 22 and the side surface 23 of the case 20, and the vacuum heat insulating material 50 is accommodated in the internal space.

  The vacuum heat insulating material 50 has a first surface 51, a second surface 52, and a third surface 53. The first surface 51 is in contact with the inner surface of the wall portion 31 of the inner box portion 30 and has a shape along the irregularities of the wall portion 31 such as the groove portion 34 and the throat portion 35. The second surface 52 is a surface on the side opposite to the first surface 51, is formed flat, and is in contact with the inner surface of the outer box portion 40. The third surface 53 is a surface that connects the first surface 51 and the second surface 52, is in contact with the inner surface of the frame portion 32 of the inner box portion 30, and is along the depression of the frame portion 32 such as the recess 33. It has a shape. Thereby, the internal space of the case 20 constituted by the inner box part 30 and the outer box part 40 is filled with the vacuum heat insulating material 50.

  The vacuum heat insulating material 50 includes a core material 54 and a covering material that covers the core material 54, and the inside is sealed under reduced pressure. For example, the covering material includes, for example, an accommodation member 55 and a sealing member 56, and a core material 54 and an adsorbent 57 are disposed in this internal space.

  The housing member 55 is a molded product produced by vacuum molding, injection molding, compressed air molding, press molding or the like in accordance with the inner surface shape of the inner box portion 30. The housing member 55 is formed by a laminated portion of a resin layer made of a thermoplastic resin and a gas barrier layer. For example, the housing member 55 is ethylene? A plurality of soft material layers such as vinyl alcohol copolymer resin are formed of a material softer than the material of the inner box portion 30 such as a laminated multilayer sheet. Thereby, the accommodating member 55 can be attached to the inner surface of the inner box part 30 when being accommodated in the inner box part 30.

  The accommodating member 55 has a concave shape having an opening (second opening), accommodates the core material 54 in the internal space, and has a flange 58. The flange 58 protrudes outward along the opening surface of the second opening at the edge of the second opening. The flange 58 is joined to the peripheral edge of the sealing member 56 by heat welding or the like, and the second opening is sealed by the sealing member 56. Since the sealing member 56 can be pressed into a planar shape by the flange 58, a strong seal can be achieved between the sealing member 56 and the housing member 55.

  The sealing member 56 is a rectangular film and is configured to seal the second opening of the housing member 55. For example, the sealing member 56 may be a laminate film such as a thermoplastic resin, and the laminate film may have a metal layer such as aluminum or stainless steel.

  The core material 54 is composed of open-cell urethane foam, glass fiber, rock wool, alumina fiber, polyethylene terephthalate fiber, or the like. The open-cell urethane foam may have, for example, the characteristics disclosed in Japanese Patent No. 5310928. Examples of the adsorbent 57 include a moisture adsorbent that adsorbs and removes moisture and a gas adsorbent that adsorbs a gas such as atmospheric gas. The adsorbent 57 is fitted into a hole provided in the core material 54. In a state where the adsorbent 57 is fitted in the hole of the core member 54, they are formed in the same shape as the inner surface (internal space) of the housing member 55.

  The inner box part 30 accommodates the vacuum heat insulating material 50 in an internal space surrounded by the wall part 31 and the frame part 32. On the inner surface side of the leading edge portion of the frame portion 32, there is a housing portion 36 in which the peripheral portion of the outer box portion 40 and the joint portion between the flange 58 of the vacuum heat insulating material 50 and the peripheral portion of the sealing member 56 are accommodated. Is provided. Thereby, a junction part is covered with the frame part 32, and the heat insulation performance of the vacuum heat insulating material 50 is maintained by preventing damage and peeling of a junction part.

  As shown in FIG. 5, the recessed portion 33 is sandwiched between the plate portion 37 of the frame portion 32 of the inner box portion 30 and the end portion 31 a of the wall portion 31 in the front-rear direction. The lower portion of the plate portion 37 and the end portion 31 a are connected by the bottom portion 39, and rises upward from the bottom portion 39. The rear surface of the plate portion 37 defines the front side surface of the concave portion 33, the front surface of the end portion 31 a defines the rear side surface of the concave portion 33, and the upper surface of the bottom portion 39 defines the bottom surface of the concave portion 33.

  The rear surface of the plate portion 37 and the front surface of the end portion 31 a are parallel to each other, and this interval is set so that the user can insert a finger into the recess 33. For this reason, when the user inserts a finger into the recess 33 from the front of the vacuum heat insulating housing 10 and places the finger on the rear surface of the plate portion 37, the rear surface of the plate portion 37 functions as the handle portion 33 a of the drawer door 12. be able to. As described above, the handle portion 33 a is provided on the second main surface 22 side of the case 20 with respect to the recessed portion 33, but does not protrude from the second main surface 22. For this reason, the fall of the beauty | look by the handle part 33a can be reduced.

  Further, the bottom 39 of the recess 33 is disposed in front of the groove 34 provided in the wall portion 31. The recess 33 is disposed on the outer peripheral edge 21a side with respect to the center L of the groove 34 in a direction (for example, the vertical direction) that is orthogonal to the direction in which the groove 34 extends and is parallel to the first main surface 21. The depth of the groove portion 34 is deepest at the center L of the groove portion 34, and the thickness of the vacuum heat insulating material 50 facing the depth is the thinnest.

  Thus, the recessed part 33 is arrange | positioned rather than the center L of the groove part 34 rather than the wall part 31 of the case 20 at the outer periphery 21a side. In this portion, the cool air from the main body 13 of the refrigerator 11 (FIG. 1) is blocked by the gasket 15 fitted in the groove 34. For this reason, the difference of the temperature of the edge part 31a of the wall part 31 of the inner box part 30 by the side of the main body 13 of the refrigerator 11 and the temperature of the outer box part 40 of the opposite side is smaller than another part. Therefore, even if the thickness of the vacuum heat insulating material 50 is reduced by the recess 33, it is possible to suppress the occurrence of condensation due to the temperature difference of the vacuum heat insulating casing 10 in the front-rear direction.

  In this embodiment, the concave portion 33 is disposed above the groove portion 34 and is disposed so as not to overlap the groove portion 34 in a direction orthogonal to the first main surface 21 (for example, the front-rear direction). . Thereby, the temperature difference of the vacuum heat insulation housing | casing 10 is further reduced, and generation | occurrence | production of dew condensation can be suppressed.

  Furthermore, an end 31 a of the wall portion 31 that defines the rear of the recess 33 extends upward from the groove 34. The gasket 15 has an insertion portion 15 a that fits into the groove portion 34, and the insertion portion 15 a fits into the groove portion 34, thereby covering the end portion 31 a of the wall portion 31 and overlapping the recess portion 33 in the front-rear direction. For this reason, the cold air is blocked by the gasket 15 at the end portion 31a of the wall portion 31 behind the recess 33, and the temperature drop of the end portion 31a is reduced. Therefore, even if the thickness of the vacuum heat insulating material 50 is reduced by the recess 33, it is possible to suppress the occurrence of condensation due to the temperature difference of the vacuum heat insulating casing 10 in the front-rear direction.

  The throat portion 35 is formed by projecting backward from the groove portion 34 on the center side of the wall portion 31 of the inner box portion 30. The throat portion 35 has a triangular cross section in a direction orthogonal to the extending direction, and has an upper slope 35a and a lower slope 35b. The angle of the upper inclined surface 35 a (the angle inclined downward toward the rear) is provided perpendicular or substantially perpendicular to the first main surface 21. Thereby, the lower end surface of the gasket 15 fitted in the groove portion 34 is in close contact with the upper inclined surface 35 a of the throat portion 35, and the cool air in the refrigerator 11 (FIG. 1) enters between the first main surface 21 and the gasket 15. To prevent that. Therefore, the temperature drop of the first main surface 21 due to the cold air can be suppressed, and the occurrence of condensation due to the temperature difference of the vacuum heat insulating casing 10 can be suppressed.

  As described above, the groove portion 34 and the throat portion 35 are provided in the wall portion 31 of the inner box portion 30, and the handle portion 33 a is provided in the frame portion 32 of the inner box portion 30. The inner box part 30 is made of resin, and the wall part 31 and the frame part 32 are integrally formed by injection molding or the like, whereby the groove part 34, the throat part 35 and the handle part 33a are integrally formed. Can be formed. Therefore, it is not necessary to form these separately and attach them to the inner box portion 30.

(Other embodiments)
In the above embodiment, the groove portion 34, the throat portion 35, and the handle portion 33a are integrally formed. However, the groove part 34 and the throat part 35 may be formed integrally, and the handle part 33a may be formed by a member separate from the groove part 34 and the throat part 35.

  In this case, for example, as shown in FIG. 6, the frame portion 132 of the inner box portion 30 is formed separately from the wall portion 31, and these are joined and integrated by a joining member 133 such as an adhesive. Also good. Thereby, the color etc. of the wall part 31 and the frame part 132 can be changed, and the beauty | look of the vacuum heat insulation housing | casing 10 can be improved. Moreover, the selection range of the material of the wall part 31 and the frame part 132 can be expanded. In addition, the wall part 31 and the frame part 132 of the inner box part 30 may be connected not via the joining member 133 by welding or the like.

  In the embodiment described above, the recess 33 is disposed without overlapping the groove 34 in a direction (for example, the front-rear direction) orthogonal to the first main surface 21. However, the positional relationship between the recess 33 and the groove 34 is not limited to this. For example, the concave portion 33 may be disposed so as to overlap the groove portion 34 when viewed from the direction orthogonal to the first main surface 21. Even in this case, the concave portion 33 is arranged closer to the outer peripheral edge 21a than the center L of the groove portion 34. Therefore, generation | occurrence | production of the dew condensation of the vacuum heat insulation housing | casing 10 can be suppressed.

  In the above embodiment, the concave portion 33 is recessed from the side surface 23 of the case 20 and the handle portion 33a is provided on the front side surface defining the concave portion 33. However, the positions of the concave portion 33 and the handle portion 33a are not limited thereto. That is, the concave portion 33 is recessed from at least one of the first main surface 21, the second main surface 22, and the side surface 23 toward the internal space of the case 20, and the handle portion 33 a is provided on the wall surface that defines the concave portion 33. That's fine.

  For example, as shown in FIG. 7A, the recess 33 may be recessed from the second main surface 22 of the case 20, and a handle portion 33 a may be provided on the upper side surface defining the recess 33. Further, as shown in FIG. 7B, the recess 33 may be recessed from the second main surface 22 and the side surface 23 of the case 20, and a handle 33 a may be provided on the lower side surface defining the recess 33.

  Further, as shown in FIG. 7C, the recess 33 may be recessed from the first main surface 21 of the case 20, and a handle portion 33 a may be provided on the upper side surface defining the recess 33. Further, as shown in FIG. 7D, the recess 33 may be recessed from the first main surface 21 and the side surface 23 of the case 20, and a handle portion 33 a may be provided on the front side surface that defines the recess 33.

  In the said embodiment, although the groove part 34 of the inner-box part 30 was used as an attaching part of the gasket 15, the attaching part of the gasket 15 is not limited to this. For example, the gasket 15 may be attached to the inner box portion 30 by an attachment portion such as a magnet or an adhesive.

  From the above description, many modifications and other embodiments of the present invention will be apparent to persons skilled in the art. Accordingly, the foregoing description should be construed as illustrative only and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the invention. The details of the structure and / or function may be substantially changed without departing from the scope of the invention. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiments.

  The vacuum heat insulating housing according to the present invention is useful as a vacuum heat insulating housing that can suppress the occurrence of condensation while reducing the decrease in aesthetic appearance due to the handle portion.

DESCRIPTION OF SYMBOLS 10: Vacuum heat insulation housing | casing 11: Refrigerator 15: Gasket 20: Case 21: 1st main surface 21a: Outer periphery 22: 2nd main surface 23: Side 33: Recess 33a: Handle part 34: Groove part (attachment part)
35: Throat part 37: Handle part 50: Vacuum heat insulating material 54: Core material 55: Housing member

Claims (7)

A case having a first main surface, a second main surface opposite to the first main surface, and a side surface connecting the first main surface and the second main surface;
A vacuum heat insulating material housed in the internal space of the case,
The case includes a gasket mounting portion extending over the entire circumference along the outer peripheral edge of the first main surface, and at least one of the first main surface, the second main surface, and the side surface. A concave portion that is recessed toward the inner space side, and a handle portion that is provided on a wall surface that defines the concave portion,
The vacuum heat insulating casing, wherein the recess is a direction orthogonal to a direction in which the attachment portion extends and is disposed on the outer peripheral edge side with respect to a center of the attachment portion in a direction parallel to the first main surface. The first main surface further includes a throat portion protruding to the side opposite to the inner space side,
The vacuum heat insulating casing according to claim 1, wherein the attachment portion, the handle portion, and the throat portion are integrally formed. The first main surface further includes a throat portion protruding to the side opposite to the inner space side,
The attachment portion and the throat portion are integrally formed,
The vacuum handle case according to claim 1, wherein the grip portion is formed of a member different from the attachment portion and the throat portion.   The vacuum heat insulation housing according to any one of claims 1 to 3, wherein the concave portion is disposed without overlapping the attachment portion when viewed from a direction orthogonal to the first main surface.   The vacuum heat insulation housing according to any one of claims 1 to 3, wherein the concave portion is disposed so as to overlap the attachment portion when viewed from a direction orthogonal to the first main surface.   The vacuum heat insulating material is configured by enclosing a core material in a housing member including a member formed by a laminated portion of a resin layer made of a thermoplastic resin and a gas barrier layer, and the surface of the case on the inner space side The vacuum heat insulation housing | casing as described in any one of Claims 1-5 which has the shape along.   The refrigerator provided with the vacuum heat insulation housing | casing in any one of Claims 1-6.

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