JP5984022B2 - refrigerator - Google Patents

refrigerator Download PDF

Info

Publication number
JP5984022B2
JP5984022B2 JP2014166640A JP2014166640A JP5984022B2 JP 5984022 B2 JP5984022 B2 JP 5984022B2 JP 2014166640 A JP2014166640 A JP 2014166640A JP 2014166640 A JP2014166640 A JP 2014166640A JP 5984022 B2 JP5984022 B2 JP 5984022B2
Authority
JP
Japan
Prior art keywords
heat insulation
vacuum heat
box
panels
vacuum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2014166640A
Other languages
Japanese (ja)
Other versions
JP2014211303A (en
Inventor
松村 茂樹
茂樹 松村
佐伯 友康
友康 佐伯
隆明 吉田
隆明 吉田
Original Assignee
東芝ライフスタイル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 東芝ライフスタイル株式会社 filed Critical 東芝ライフスタイル株式会社
Priority to JP2014166640A priority Critical patent/JP5984022B2/en
Publication of JP2014211303A publication Critical patent/JP2014211303A/en
Application granted granted Critical
Publication of JP5984022B2 publication Critical patent/JP5984022B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

  Embodiments of the present invention relate to a refrigerator.
  Conventionally, for example, in a refrigerator for home use, a vacuum heat insulating panel having excellent heat insulating performance is used as a heat insulating material between an outer box and an inner box (see, for example, Patent Document 1). This vacuum insulation panel is made by, for example, storing a core material obtained by compressing and curing a laminated material of inorganic fibers such as glass wool in a wrapping bag of a synthetic resin film such as polyethylene having gas barrier performance, and then evacuating the inside to reduce the pressure. It is configured to be sealed.
JP-A-4-260780
Such a vacuum heat insulation panel is excellent in heat insulation performance compared with the urethane foam conventionally used as a heat insulating material. However, if the envelope of the vacuum heat insulation panel is damaged and the internal vacuum decompression state cannot be maintained, the heat insulation performance of the vacuum heat insulation panel is lost, and as a result, the heat insulation performance of the entire refrigerator is significantly lowered.
Then, even if it is a case where a vacuum heat insulation panel is damaged, the refrigerator which can prevent that the heat insulation performance of the whole refrigerator falls remarkably is provided.
The refrigerator of this embodiment is provided with the heat insulation box which has an inner box inside an outer box. In the heat insulation box, at least two vacuum heat insulation panels are arranged in the wall thickness direction between the outer box and the inner box. Among the vacuum heat insulation panels, a spacer is provided between two vacuum heat insulation panels in which the folded portions are arranged to face each other .
The perspective view which shows 1st Embodiment and shows schematic structure of the refrigerator main body except a door Transverse plan view of heat insulation box Sectional drawing which expands and shows a part around the folding part of a vacuum insulation panel FIG. 2 equivalent view showing the second embodiment
  Hereinafter, refrigerators according to a plurality of embodiments will be described with reference to the drawings. In addition, in each embodiment, the same code | symbol is attached | subjected to the substantially same component, and description is abbreviate | omitted.
(First embodiment)
First, a first embodiment will be described with reference to FIGS. As shown in FIG. 1, the refrigerator main body 1 is configured by incorporating a refrigeration cycle (not shown) or the like into a heat insulating box 2 having a vertically long rectangular box shape with an open front. Although detailed description is omitted, the inside of the heat insulation box 2 is partitioned vertically (and partially left and right), and a plurality of storage rooms 3 such as a refrigerator room, a vegetable room, and a freezer room are provided. Although illustration is omitted, a hinged heat-insulating door or a drawer-type heat insulating door is provided on the front surface of each storage chamber 3. The heat insulation box 2 is configured in such a manner that an inner box 5 made of synthetic resin is accommodated in an outer box 4 made of steel plate.
  As shown in FIG. 2, the heat insulating box 2 is arranged between the outer box 4 and the inner box 5 so as to be overlapped in the wall thickness direction for each surrounding wall part (rear wall part and left and right wall parts). Each has two vacuum insulation panels 6-11. Although details will be described later, a vacuum heat insulation panel 6 on the outer side of the rear wall and a vacuum heat insulation panel 7 on the inner side of the rear wall are provided between the outer box 4 and the inner box 5 so as to overlap each other. It has been. In addition, a vacuum heat insulation panel 8 on the outside of the left wall and a vacuum heat insulation panel 9 on the inside of the left wall are provided to overlap with each other at the left wall portion. Similarly, the vacuum heat insulation panel 10 on the outer side of the right wall and the vacuum heat insulation panel 11 on the inner side of the right wall are provided so as to overlap each other at the right wall portion. Although not shown in detail, a vacuum heat insulation panel is similarly provided on the ceiling wall of the heat insulation box.
  Here, the structure of the vacuum heat insulation panels 6-11 is demonstrated with reference also to FIG. The vacuum heat insulation panels 6-11 accommodate the rectangular plate-shaped core material 12 shape | molded according to the shape of each wall in the outer bag body 13, and are sealed, keeping the inside of the outer bag body 13 in a vacuum pressure reduction state. (See FIG. 3). Specifically, as shown in FIG. 3, the core material 12 includes a highly heat-insulating material, for example, a laminated material 12 a of inorganic fibers such as glass wool in an inner bag body 14 made of a synthetic resin film such as polyethylene. After storage, it is formed by compression hardening in a rectangular plate shape. The core material 12 is decompressed by evacuating the inside of the outer bag body 13 while being accommodated in the outer bag body 13 having gas barrier performance. While maintaining the reduced pressure, the opening of the outer bag body 13 is sealed by heat welding, and the outer bag body 13 is sealed.
  This outer bag 13 is formed by laminating (laminating) two laminated films at the peripheral portion, and is composed of an aluminum vapor deposition film 15 which is a metal vapor deposition surface provided on one surface. The material of the aluminum foil film 16 provided on the other surface is different. That is, as shown in FIG. 3, the aluminum vapor deposition film 15 has a surface protective layer 15a, an aluminum vapor deposition layer 15b serving as a gas barrier layer, and a heat welding layer 15c in this order from the outside toward the core 12 side. It is a layered structure. On the other hand, the aluminum foil film 16 has a three-layer structure having a surface protective layer 16a, an aluminum foil layer 16b serving as a gas barrier layer, and a heat welding layer 16c in this order from the outside toward the core 12 side. Yes. That is, the aluminum vapor deposition film 15 and the aluminum foil film 16 differ in that the material of the gas barrier layer is the aluminum vapor deposition layer 15b or the aluminum foil layer 16b.
  In the aluminum vapor deposition film 15 and the aluminum foil film 16, the surface protective layers 15a and 16a are made of a relatively heat-resistant synthetic resin such as polyethylene terephthalate. Further, the heat welding layers 15c and 16c are made of a synthetic resin having a heat welding property such as high density polyethylene. By pressing and heating the peripheral portion in a state where the surface of the heat-welded layer 15c of the aluminum vapor-deposited film 15 and the surface of the heat-welded layer 16c of the aluminum foil film 16 are overlapped, the aluminum-deposited film 15 and the aluminum foil are heated. The film 16 is thermally welded to form a sealed bag-like outer bag body 13.
  In this case, as shown in FIG. 2 and FIG. 3, the vacuum heat insulating panels 6 to 11 are folded back at the outer peripheral edge portion so that the portion protruding around the core material 12 is folded back to the aluminum foil film 16 side. It has the parts 6a-11a. The folded portions 6 a to 11 a are provided for the purpose of ensuring a sufficiently large heat-welded area in order to obtain a sufficient sealing property between the aluminum deposited film 15 and the aluminum foil film 16. The folded portions 6 a to 11 a are fixed along the surface of the aluminum foil film 16 with an adhesive or a tape.
  Here, about the aluminum vapor deposition film 15 and the aluminum foil film 16, the reason for having set the structure of the metal layer used as these gas barrier layers to the aluminum vapor deposition layer 15b or the aluminum foil layer 16b is demonstrated easily.
  Usually, the vacuum heat insulation panel is configured by housing a core material in an outer bag body excellent in gas barrier performance and sealing under reduced pressure in order to maintain an internal vacuum reduced pressure state. A film having a metal layer such as aluminum may be used to make the outer bag body exhibit gas barrier performance. In this case, it is common to use an aluminum vapor deposition layer or an aluminum foil layer for the metal layer. This aluminum vapor deposition layer is formed by heating and evaporating aluminum in a high vacuum state, and depositing and depositing the evaporated aluminum on a film as a base material. As the film thickness of the aluminum vapor deposition layer, for example, a film having a thickness of 0.1 μm or less is generally used. Such an aluminum vapor deposition layer has the advantage of being formed thinly and uniformly. For this reason, the heat conductivity of the vacuum heat insulation panel surface (gas barrier layer) which influences the performance of a vacuum heat insulation panel can be made low in an aluminum vapor deposition layer. On the other hand, the aluminum vapor deposition layer has a situation that it is difficult to increase the film thickness. Therefore, since the aluminum vapor deposition layer is composed of a thin layer, there is a disadvantage that cracks are likely to occur due to a large deformation of the base material film, and scratches are easily caused by scratching. Furthermore, since a high vacuum state is required in the manufacturing process, expensive equipment is required, and the cost tends to increase.
  On the other hand, an aluminum foil layer is comprised from the aluminum foil which rolled the aluminum plate used as material with a rolling roller. A film having an aluminum foil layer is formed by laminating both sides of this aluminum foil with a synthetic resin. Since this aluminum foil layer can be produced in large quantities at a lower cost than the aluminum vapor deposition layer, it is advantageous in terms of cost. As the film thickness of the aluminum foil layer, for example, about 5 to 20 μm is generally used. In this case, since the aluminum foil layer is thicker than the aluminum vapor deposition layer, there is an advantage that it is strong against deformation of the film and relatively strong against scratches. On the other hand, the heat conductivity of the vacuum heat insulation panel surface (gas barrier layer) has a disadvantage that the aluminum foil layer is higher than the aluminum vapor deposition layer.
  For the above reason, in the present embodiment, in the outer bag body 13 of the vacuum heat insulating panels 6 to 11, one surface includes the aluminum vapor deposition layer 15b and the other surface includes the aluminum foil layer 16b. With this configuration, good gas barrier performance is maintained, thermal conductivity is reduced, and the overall cost is reduced.
  Next, the specific structure of the vacuum heat insulation panels 6-11 in the heat insulation box 2 is demonstrated. As shown in FIG. 2, the rear wall portion of the heat insulation box 2 includes a vacuum heat insulation panel 6 on the outer side of the rear wall and a vacuum heat insulation panel 7 on the inner side of the rear wall between the outer box 4 and the inner box 5. Are arranged adjacent to each other in the wall thickness direction. The vacuum heat insulation panel 6 located on the outside is attached to the outer box 4 with an adhesive or the like with the surface on the side of the aluminum foil film 16 having the folded portion 6a in contact. Similarly, the vacuum heat insulation panel 7 located on the inner side is attached to the inner box 5 with an adhesive or the like with the surface on the side of the aluminum foil film 16 having the folded portion 7a in contact. Accordingly, the vacuum heat insulating panels 6 and 7 are arranged with the surfaces of the aluminum vapor deposition films 15 facing each other, and the folded portion 6a of the vacuum heat insulating panel 6 and the folded portion 7a of the vacuum heat insulating panel 7 are opposed to each other. It is arranged so as not to touch (do not touch). Further, the surfaces of the vacuum heat insulating panels 6 and 7 on the side of the aluminum vapor deposition film 15 are in contact with each other and bonded by an adhesive or the like.
  In this case, the vacuum heat insulation panel 6 is attached by pressing the surface (the surface on the aluminum foil film 16 side) having the folded portion 6 a against the outer box 4. Therefore, the surface of the vacuum heat insulating panel 6 on the side of the aluminum foil film 16 swells to the outer box 4 side so as to fill a gap corresponding to the thickness of the folded portion 6 a generated between the vacuum heat insulating panel 6 and the outer box 4. It is transformed in this way. Similarly, the vacuum heat insulation panel 7 is also attached by pressing the surface having the folded portion 7a (the surface on the aluminum foil film 16 side) against the inner box 5. Therefore, the surface of the vacuum heat insulating panel 7 on the side of the aluminum foil film 16 also swells toward the inner box 5 so as to fill a gap corresponding to the thickness of the folded portion 7 a generated between the vacuum heat insulating panel 7 and the inner box 5. It is transformed in this way.
  In this structure, the folding | returning part 6a (or folding | returning part 7a) is provided in the aluminum foil film 16 side of the vacuum heat insulation panel 6 (or vacuum heat insulation panel 7). For this reason, the surface which is pressed against the outer box 4 (or the inner box 5) and deforms is a surface on the side of the aluminum foil film 16 which is relatively resistant to deformation. Accordingly, when the vacuum heat insulation panel 6 (or the vacuum heat insulation panel 7) is attached, the vacuum heat insulation panel 6 (or the vacuum heat insulation panel 7) is deformed to form a gas barrier layer (metal layer) of the outer bag 13. It is possible to prevent cracks from occurring as much as possible.
Next, the left and right wall portions of the heat insulating box 2 will be described. Note that the vacuum insulation panels 8 and 9 (and spacers 18) on the left wall part and the vacuum insulation panels 10 and 11 (and spacers 19) on the right wall part have basically the same configuration, and therefore the vacuum on the left wall part. The heat insulating panels 8 and 9 will be described as a representative.
In the left wall portion of the heat insulation box 2, a vacuum heat insulation panel 8 outside the left wall and a vacuum heat insulation panel 9 inside the left wall overlap in the wall thickness direction between the outer box 4 and the inner box 5. Has been placed. A spacer 18 is provided between the two vacuum heat insulating panels 8 and 9.
  Specifically, the vacuum heat insulating panel 8 is attached to the outer box 4 with an adhesive or the like with the surface on the aluminum vapor deposition film 15 side in contact. Similarly, the vacuum heat insulation panel 9 is attached to the inner box 5 with an adhesive or the like with the surface on the aluminum vapor deposition film 15 side in contact. In this case, the folded-back portion 8a of the vacuum heat-insulating panel 8 and the folded-back portion 9a of the vacuum heat-insulating panel 9 are arranged so as to face each other (contact). A thin plate spacer 18 made of synthetic resin or the like is provided between the vacuum heat insulating panels 8 and 9. The spacer 18 and the vacuum heat insulating panels 8 and 9 are bonded with an adhesive or the like. Thereby, the vacuum heat insulating panels 8 and 9 are fixed to each other via the spacer 18 and a gap generated between the vacuum heat insulating panels 8 and 9 is filled.
  In this case, the vacuum heat insulating panel 8 is attached to the outer box 4 with a flat surface (surface on the aluminum vapor deposition film 15 side) that does not have the folded portion 8a. Similarly, the vacuum heat insulation panel 9 is also attached to the inner box 5 with a flat surface (surface on the aluminum vapor deposition film 15 side) that does not have the folded portion 9a. Further, a gap generated by the overlap between the folded portion 8 a and the folded portion 9 a between the vacuum heat insulating panels 8 and 9 is filled with the spacer 18. Thereby, the clearance gap around the vacuum heat insulation panels 8 and 9 can be reduced as much as possible. For this reason, when attaching the vacuum heat insulation panels 8 and 9, there is little possibility that the vacuum heat insulation panels 8 and 9 pushed in between the outer box 4 and the inner box 5 will deform | transform according to the surrounding clearance gap shape. Therefore, the aluminum vapor-deposited film 15 (aluminum vapor-deposited layer 15b) of the vacuum heat insulating panels 8 and 9 is deformed, and breakage such as cracks caused by the deformation can be prevented.
According to the first embodiment described above, the following operational effects can be obtained.
According to the configuration of the present embodiment, between the outer box 4 and the inner box 5 of the heat insulating box 2, two pieces of vacuum heat insulation are provided for each surrounding wall part (rear wall part and left and right wall parts). The panels are arranged so as to overlap in the wall thickness direction. That is, a vacuum heat insulation panel 6 on the outside of the rear wall and a vacuum heat insulation panel 7 on the inside of the rear wall are overlapped on the rear wall portion, and a vacuum heat insulation panel 8 on the left wall outer side and a vacuum heat insulation panel 8 on the left wall inside The vacuum heat insulation panel 9 is overlapped and the right wall portion is provided with the vacuum heat insulation panel 10 outside the right wall and the vacuum heat insulation panel 11 inside the right wall. According to this configuration, for example, one of the two vacuum heat insulation panels 6 provided on the wall around the heat insulation box 2 (for example, the vacuum heat insulation panels 6 and 7 on the rear wall), Even if it is damaged for some reason and loses its heat insulating performance, the other vacuum heat insulating panel 7 is less likely to be directly affected by the damage of the vacuum heat insulating panel 6. That is, the heat insulation performance of the other vacuum heat insulation panel 7 can be maintained. Therefore, even if one of the two vacuum insulation panels breaks and loses its insulation performance, the insulation performance of the other vacuum insulation panel can be maintained, so that the insulation box It can prevent that the heat insulation performance of the whole body 2 falls remarkably.
  Among the vacuum heat insulation panels 6 to 11 provided on the wall around the heat insulation box 2, the vacuum heat insulation panels 6, 8, 10 located outside are attached to the outer box 4, and the vacuum heat insulation panel located inside. 7, 9, and 11 are attached to the inner box 5. For this reason, it is not necessary to fill and fix the periphery of the vacuum heat insulation panel with urethane foam, and the vacuum heat insulation panels 6 to 11 can be reliably fixed.
  The vacuum heat insulation panels 6 to 11 in the present embodiment have an aluminum vapor deposition film 15 on one surface and an aluminum foil film 16 on the other surface. And in the rear wall part of the heat insulation box 2, the vacuum heat insulation panels 6 and 7 are arrange | positioned so that the surface at the side of each aluminum vapor deposition film 15 may be adhered and opposed. According to this, the surface at the side of the aluminum vapor deposition film 15 which is comparatively easily damaged can be protected.
  The vacuum heat insulation panel 6 on the outside of the rear wall is attached to the outer box 4 with an adhesive or the like with the surface on the side of the aluminum foil film 16 having the folded portion 6a in contact. Similarly, the vacuum heat insulation panel 7 on the inner side of the rear wall is attached to the inner box 5 with an adhesive or the like with the surface on the side of the aluminum foil film 16 having the folded portion 7a in contact. In this way, the two vacuum heat insulating panels 6 and 7 arranged adjacent to each other in the wall thickness direction are arranged so that the folded portions 6a and 7a do not face each other (do not contact). According to this configuration, it is possible to eliminate a gap caused by the overlapping of the folded portions 6a and 7a between the vacuum heat insulation panel 6 on the outer side of the rear wall and the vacuum heat insulation panel 7 on the inner side of the rear wall. Thereby, the adhesiveness of the vacuum heat insulation panels 6 and 7 can be improved.
  By the way, when multiple vacuum insulation panels are installed in the wall thickness direction, if there is a gap between these vacuum insulation panels, the air in the gap will transmit heat, and heat insulation as a whole insulation box There is a risk of performance degradation. Therefore, it is desirable that these vacuum heat insulation panels are in close contact with each other so as to eliminate gaps (air layers) as much as possible. Here, when the two vacuum insulation panels are arranged so that the respective folded portions face each other and come into contact with each other, the folded portions overlap each other, so that the thickness of the folded portion is approximately between the two vacuum insulated panels. A gap will be created. In this case, these vacuum heat insulation panels are bonded in a state of being crushed and deformed so as to fill the gap. However, since each of the vacuum heat insulation panels has a restoring force in a direction in which the adhesive surface is peeled off, the two vacuum heat insulation panels are easily peeled off.
  Therefore, in the present embodiment, in the left wall portion of the heat insulating box 2, the folded portion 8a of the vacuum heat insulating panel 8 on the outside of the left wall and the folded portion 9a of the vacuum heat insulating panel 9 on the inside of the left wall are opposed to each other. Are arranged. A spacer 18 is provided between the vacuum heat insulation panels 8 and 9. According to this, it is possible to fill the gap formed by the folded portions 8 a and 9 a between the vacuum heat insulating panels 8 and 9 with the spacer 18. For this reason, the adhesiveness of the vacuum heat insulation panels 8 and 9 can be improved. In addition, it is the structure similar to the left wall part also about the vacuum heat insulation panels 10 and 11 in a right wall part.
(Second Embodiment)
In this 2nd Embodiment, the structure of the vacuum heat insulation panel arrange | positioned at each wall part (rear wall part and right-and-left wall part) around the heat insulation box 2 differs from 1st Embodiment.
That is, as shown in FIG. 4, three vacuum heat insulation panels 20 to 22 are provided on the rear wall portion of the heat insulation box 2, and a spacer 29 is provided between the vacuum heat insulation panels 20 and 21. Is provided. In addition, three vacuum heat insulation panels 23 to 25 are provided on the left wall portion, and a spacer 30 is provided between the vacuum heat insulation panels 23 and 24. Similarly, three vacuum heat insulation panels 26 to 28 are provided also on the right wall portion, and a spacer 31 is provided between the vacuum heat insulation panels 26 and 27.
  Here, the configuration of each wall portion around the heat insulating box 2 will be described by using the rear wall portion as a representative. On the rear wall portion of the heat insulation box 2, between the outer box 4 and the inner box 5, a vacuum heat insulation panel 20 outside the rear wall, a vacuum heat insulation panel 21 in the middle of the rear wall, and a vacuum heat insulation panel inside the rear wall 22 are arranged so as to overlap in the wall thickness direction. Specifically, the vacuum heat insulation panel 20 on the outer side of the rear wall is attached to the outer box 4 with the surface on the aluminum vapor deposition film 15 side being brought into contact therewith. The vacuum heat insulation panel 21 in the middle of the rear wall is arranged so that the folded portion 21a of the vacuum heat insulating panel 21 and the folded portion 20a of the vacuum heat insulating panel 20 face each other (contact). In this case, a spacer 29 is bonded between the vacuum heat insulating panels 20 and 21. Thereby, the vacuum heat insulation panel 21 in the middle of the rear wall is attached to the vacuum heat insulation panel 20 outside the rear wall via the spacer 29.
  A vacuum heat insulation panel 22 inside the rear wall is provided adjacent to the vacuum heat insulation panel 21 in the middle of the rear wall. In this case, the surface on the aluminum vapor deposition film 15 side of the vacuum heat insulation panel 21 in the middle of the rear wall and the surface on the aluminum vapor deposition film 15 side of the vacuum heat insulation panel 22 on the inner side of the rear wall are arranged to face each other (contact). Are bonded to each other. The vacuum heat insulation panel 22 on the inner side of the rear wall is attached to the inner box 5 with the surface having the folded portion 22a (the surface on the aluminum foil film 16 side) in contact with the inner box 5. Also in this case, the vacuum heat insulation panel 22 is deformed so as to be recessed by the thickness of the folded portion 22a.
  In such 2nd Embodiment, in addition to the effect similar to 1st Embodiment, the following effects can be obtained. That is, three vacuum heat insulation panels are provided on each wall portion around the heat insulation box 2. For this reason, for example, even if one of these three vacuum insulation panels is damaged and loses its insulation performance, the insulation performance of the insulation box 2 is maintained by the remaining two vacuum insulation panels. The Thereby, the ratio of the fall of the heat insulation performance per sheet | seat in the failure | damage of a vacuum heat insulation panel can be decreased more. For this reason, even if some vacuum heat insulation panels are damaged, it can prevent more effectively that the heat insulation performance of the heat insulation box 2 whole falls remarkably.
In addition, in each said embodiment, it was set as the structure which has arrange | positioned two or three vacuum heat insulation panels in the wall thickness direction, respectively, about each wall part around the heat insulation box 2, respectively. However, the present invention is not limited to this, and a configuration in which four or more vacuum heat insulation panels are stacked in the wall thickness direction may be employed. In this case, the structure of the vacuum heat insulation panel may be arbitrarily combined with the structure of the vacuum heat insulation panel on each wall of each of the above embodiments.
Further, a heat insulating material such as urethane foam may be filled between the outer box 4, the inner box 5, and each vacuum heat insulating panel. According to this, since the clearance gap in the heat insulation box 2, ie, an air layer, can further be reduced, heat insulation performance is improved more.
Furthermore, in each said embodiment, although the gas barrier layer of the vacuum heat insulation panel is made into the aluminum vapor deposition layer 15b or the aluminum foil layer 16b, as a material which comprises a gas barrier layer, it is not restricted to aluminum.
  As described above, according to the refrigerator of the present embodiment, the heat insulating box is arranged such that at least two vacuum heat insulating panels are stacked in the wall thickness direction between the outer box and the inner box. And among these vacuum heat insulation panels, the vacuum heat insulation panel located outside is attached to the outer box, and the vacuum heat insulation panel located inside is attached to the inner box. According to this configuration, even if one vacuum heat insulation panel is damaged and loses its heat insulation performance, the overall heat insulation performance is somewhat improved by the remaining vacuum heat insulation panels arranged in a stacked manner. Can be maintained. Thereby, even if it is a case where some vacuum heat insulation panels are damaged, it can prevent that the heat insulation performance of the whole refrigerator falls remarkably.
  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
  In the drawings, 1 is a refrigerator body, 2 is a heat insulating box, 4 is an outer box, 5 is an inner box, 6 to 11 are vacuum heat insulating panels, 6a to 11a are folded portions, 15 is an aluminum vapor deposition film (metal vapor deposition surface), 18 and 19 are spacers, 20 to 28 are vacuum heat insulation panels, 20a to 28a are turned portions, and 29 to 31 are spacers.

Claims (1)

  1. Provided with a heat insulation box having an inner box inside the outer box,
    The heat insulation box is arranged such that at least two vacuum heat insulation panels are stacked in the wall thickness direction between the outer box and the inner box,
    The refrigerator in which the spacer is provided between the two vacuum heat insulation panels by which each folding | turning part opposes among the said vacuum heat insulation panels .
JP2014166640A 2014-08-19 2014-08-19 refrigerator Active JP5984022B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014166640A JP5984022B2 (en) 2014-08-19 2014-08-19 refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014166640A JP5984022B2 (en) 2014-08-19 2014-08-19 refrigerator

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2010169193A Division JP5646241B2 (en) 2010-07-28 2010-07-28 Refrigerator

Publications (2)

Publication Number Publication Date
JP2014211303A JP2014211303A (en) 2014-11-13
JP5984022B2 true JP5984022B2 (en) 2016-09-06

Family

ID=51931181

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014166640A Active JP5984022B2 (en) 2014-08-19 2014-08-19 refrigerator

Country Status (1)

Country Link
JP (1) JP5984022B2 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6327192Y2 (en) * 1980-03-08 1988-07-22
JPS6231288U (en) * 1985-08-10 1987-02-25
JP2728318B2 (en) * 1991-02-15 1998-03-18 シャープ株式会社 Manufacturing method of vacuum insulation box
JP2004286252A (en) * 2003-03-19 2004-10-14 Hino Motors Ltd Heat insulation panel
JP2005147591A (en) * 2003-11-18 2005-06-09 Toshiba Consumer Marketing Corp Refrigerator

Also Published As

Publication number Publication date
JP2014211303A (en) 2014-11-13

Similar Documents

Publication Publication Date Title
JP6009663B2 (en) Heat insulation equipment
JP3478780B2 (en) Vacuum insulation material and refrigerator using vacuum insulation material
CN101334125B (en) Vacuum insulation material and refrigerator incorporating the same
KR100950834B1 (en) Vacuum heat insulating material, hot water supply apparatus using vacuum heat insulating material, and electric water heating apparatus
JP6108180B2 (en) Vacuum heat insulating material and heat insulating housing using the same
US8117792B2 (en) Fixing structure of insulation panel of prefabricated refrigerator and prefabricated refrigerator having the same
KR100750302B1 (en) Vacuum heat insulating material, refrigerator using the same and its manufacturing method and manufacturing equipment thereof
WO2013084647A1 (en) Insulated cabinet
KR101404239B1 (en) Multi-layered thin vacuum insulation panel
US10234188B2 (en) Wrinkle free geometric opening in a vacuum insulated panel
EP1945993B1 (en) Vacuum insulation panel and insulation structure of refrigerator applying the same
US20110030892A1 (en) Vacuum heat insulating material, method of producing vacuum heat insulating material, and heat insulating box body using vacuum heat insulating material
US20050235682A1 (en) Refrigerator
EP2462393B1 (en) Vacuum insulation member and refrigerator having a vacuum insulation member
TWI457233B (en) Groove type vacuum heat insulation material
JP5333038B2 (en) Vacuum insulation and manufacturing method thereof
US20060076863A1 (en) Vacuum insulation panel, refrigerator incorporating the same, and method for producing the same
JP2012063029A (en) Vacuum heat insulating material and refrigerator using the same
KR20060042182A (en) Refrigerator and vacuum heat insulation material and method of production thereof
US20180266620A1 (en) Vacuum heat insulator, heat insulation device provided with same, and method for manufacturing vacuum heat insulator
JP2004011705A (en) Vacuum heat insulating material, heat insulator, heat insulation box, heat insulation door, storage warehouse, and refrigerator
WO2012043990A3 (en) Vacuum insulation material and insulation structure for refrigerator cabinet having the same
US20120164365A1 (en) Vacuum insulation panel and method for manufacturing the same
JP2013050267A (en) Refrigerator
US6938968B2 (en) Vacuum insulating material and device using the same

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140819

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20150427

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150512

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20150708

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20151208

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20160126

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20160621

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20160628

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20160720

R150 Certificate of patent (=grant) or registration of utility model

Ref document number: 5984022

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150