EP2789946B1 - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
EP2789946B1
EP2789946B1 EP12854811.2A EP12854811A EP2789946B1 EP 2789946 B1 EP2789946 B1 EP 2789946B1 EP 12854811 A EP12854811 A EP 12854811A EP 2789946 B1 EP2789946 B1 EP 2789946B1
Authority
EP
European Patent Office
Prior art keywords
reinforcing member
mounting portions
insulation panel
insulated cabinet
portions
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.)
Not-in-force
Application number
EP12854811.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2789946A4 (en
EP2789946A1 (en
Inventor
Ikuo Ishibashi
Tomoyasu Saeki
Masanori Abe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Lifestyle Products and Services Corp
Original Assignee
Toshiba Lifestyle Products and Services Corp
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 Toshiba Lifestyle Products and Services Corp filed Critical Toshiba Lifestyle Products and Services Corp
Publication of EP2789946A1 publication Critical patent/EP2789946A1/en
Publication of EP2789946A4 publication Critical patent/EP2789946A4/en
Application granted granted Critical
Publication of EP2789946B1 publication Critical patent/EP2789946B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/062—Walls defining a cabinet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2500/00—Problems to be solved
    • F25D2500/02—Geometry problems

Definitions

  • Embodiments of the present invention relate to a refrigerator.
  • An insulated cabinet serving as a body of a refrigerator includes an outer box, an inner box and an insulating material provided between the outer and inner boxes and is constructed into a general box shape as a whole.
  • the outer box constitutes an outer surface which is an outside of the insulated cabinet.
  • the inner box constitutes an inner surface which is an inside of the insulated cabinet.
  • FIGS. 27 and 28 illustrate a manner of curvature.
  • the insulated cabinet 111 curves outward as shown by the two-dot chain line in FIGS. 27 and 28 . Note that the degree of curvature is shown as larger than actual for the sake of easy understanding.
  • JP-U-S61-124887 discloses a floor-standing refrigerator including a heat insulating box having an upper surface formed with an access opening and a bottom on which a cooling device is mounted, a plurality of divided doors juxtaposed to open and close the access opening, hinges mounted on an upper side edge of the heat insulating box to rotatably support the doors, a gasket receiving frame airtightly pressed against an annular gasket, and an interior partition plate abutting against gaskets with the doors being closed, thereby preventing outside air from entering through gaps between the doors and cold air from leaking.
  • JP-A-2000-234854 discloses a warming/refrigerating apparatus including a body comprised of a heat insulating box, a partition wall formed by stacking a plurality of unit partition walls and partitioning an interior of a warming compartment and a refrigerating compartment, and a pair of support arms horizontally protruding from right and left sides of each unit partition wall.
  • Each support arm has a protruding end mounted on a wall surface opposed to the partition wall of the warming compartment and the refrigerating compartment.
  • a reinforcing member extends between right and left sides in each unit partition wall.
  • Each support arm has a proximal end is clamped together with the reinforcing member thereby to be mounted to a side of each unit partition wall.
  • An object is to provide a refrigerator which can reduce outward swell of the walls of the insulated cabinet.
  • the present invention provides a refrigerator including an insulated cabinet constructed into a box shape and having an insulating material between outer plates constituting an outer surface and inner plates constituting an inner surface, a pair of reinforcing member mounting portions provided on a pair of the inner plates opposed to each other in an interior, and a bridge-shaped reinforcing member having one of two ends connected to one of the paired reinforcing member mounting portions and the other end connected to the other of the paired reinforcing member mounting portions.
  • the bridge-shaped reinforcing member is fixed to at least middle portions of the inner plates in a front-back direction.
  • the insulating material of the insulated cabinet includes a vacuum insulation panel.
  • the paired reinforcing member mounting portions are provided on the inner plates opposed to each other in a right-left direction.
  • the bridge-shaped reinforcing member is connected to the paired reinforcing member mounting portions so that connecting positions thereof in the right-left direction is adjustable.
  • a refrigerator 1 is mainly constructed of an insulated cabinet 2 as shown in FIG. 1 .
  • the insulated cabinet 2 has in an interior thereof a refrigerating compartment 3, a vegetable compartment 4, an ice-making compartment 5, a small freezing compartment 6 and a main freezing compartment 7.
  • the refrigerating compartment 3 is provided at an uppermost interior.
  • the vegetable compartment 4 is provided below the refrigerating compartment 3.
  • the ice-making compartment 5 and the small freezing compartment 6 are provided below the vegetable compartment 4 in juxtaposition.
  • the main freezing compartment 7 is provided below the ice-making compartment 5 and the small freezing compartment 6 or at a lowermost interior.
  • a storage compartment is constituted by the refrigerating compartment 3, the vegetable compartment 4, the ice-making compartment 5, the small freezing compartment 6 and the main freezing compartment 7.
  • the refrigerating compartment 3 and the vegetable compartment 4 are storage compartments of a refrigeration temperature zone and an interior temperature of each compartment is controlled to be ranged from 0°C to 10°C, for example. Accordingly, some degree of heat insulation is required to be ensured between the refrigerating compartment 3 and the vegetable compartment 4.
  • a refrigerating compartment bottom plate 8 which is a plate member and is made of a synthetic resin is provided for separating the refrigerating compartment 3 and the vegetable compartment 4 from each other.
  • the ice-making compartment 5, the small freezing compartment 6 and the main freezing compartment 7 are storage compartments of a freezing temperature zone and an interior temperature of each compartment is controlled to be at or below -18°C, for example. Accordingly, an insulation partition wall 9 made of a high-performance heat insulating material is provided for separating the vegetable compartment 4 of the refrigeration temperature zone from the ice-making compartment 5 and the small freezing compartment 6 of the freezing temperature zone. The insulation partition wall 9 reduces heat leak between the vegetable compartment 4 and the ice-making compartment 5 and the small freezing compartment 6.
  • the bottom plate 8 constitutes a bottom plate of the refrigerating compartment 3, so that stored articles are placed on the bottom plate 8.
  • Front partition members 10, 11, 12 and 13 are provided on the front of the insulated cabinet 2 as shown in FIGS. 2 and 3 .
  • the partition member 10 is located in front of the bottom plate 8, extending in the right-left direction or the lateral direction.
  • the partition member 11 is located in front of the partition wall 9, extending in the right-left direction or the lateral direction.
  • the partition member 12 is located between the ice-making compartment 5 and the small freezing compartment 6, extending in the up-down direction.
  • the partition member 13 is located between the ice-making compartment 5 and the small freezing compartment 6, and the main freezing compartment 7, extending in the right-left direction or the lateral direction.
  • the refrigerating compartment 3 has two, right and left pivoted doors 16 and 15 as shown in FIG. 1 .
  • the pivoted doors 15 and 16 open and close a front of the refrigerating compartment 3.
  • the insulated cabinet 2 has hinge members 17a, 17b, 18a and 18b mounted on upper and middle portions of right and left ends as shown in FIGS. 2 and 3 .
  • the pivoted doors 15 and 16 constitute a clamshell door caused to pivot about the hinge members 17a, 17b, 18a and 18b.
  • the vegetable compartment 4 has a front opened and closed by a pullout door 19.
  • a vegetable container (not shown) is mounted on the back side or inside of the door 19.
  • the ice-making compartment 5 has a front opened and closed by a pullout door 20.
  • An ice-making device (not shown) is provided in the ice-making compartment 5.
  • An ice storage container (not shown) is mounted on the back side or inside of the door 20.
  • the small freezing compartment 6 has a front opened and closed by a pullout door 21.
  • a storage container (not shown) is mounted on the back side or inside of the door 21.
  • the main freezing compartment 7 has a front opened and closed by a pullout door 22.
  • a storage container (not shown) is mounted on the back side or inside of the door 22.
  • the insulated cabinet as the insulation box is formed into the shape of a vertically long rectangular box with a front opening, by combining a plurality of insulated walls, namely, a rear wall insulation panel 25, a left sidewall insulation panel 26, a right sidewall insulation panel 27, a ceiling wall insulation panel 28 and a bottom wall insulation panel 29, as shown in FIG. 4 .
  • the rear wall insulation panel 25 constitutes a rear wall of the insulated cabinet 2.
  • the left sidewall insulation panel 26 constitutes a left sidewall of the insulated cabinet 2.
  • the right sidewall insulation panel 27 forms a right sidewall of the insulated cabinet 2.
  • the ceiling wall insulation panel 28 forms a ceiling wall of the insulated cabinet 2.
  • the bottom wall insulation panel 29 constitutes a bottom wall of the insulated cabinet 2.
  • the left sidewall insulation panel 26 includes an outer plate 30B, an inner plate 31B and a vacuum insulation panel 32.
  • the vacuum insulation panel 32 is constructed into a plate shape and provided between the outer and inner plates 30B and 31B thereby to function as an insulating material. More specifically, the left sidewall insulation panel 26 has a construction that the vacuum insulation panel 32 is interposed between the outer and inner plates 30B and 31B.
  • the outer plate 30B is a metal plate and constitutes an outer box of the insulated cabinet 2.
  • the inner plate 31B is a sheet-shaped member made of synthetic resin, for example and constitutes an inner box of the insulated cabinet 2.
  • a surface of the inner plate 31B will refer to an interior side face of the refrigerator, and a rear surface of the inner plate 31B will refer to a face opposed to the interior side of the refrigerator, namely, a face at the vacuum insulation panel 32 side.
  • the inner plate 31B of the insulation panel 26 To the inner plate 31B of the insulation panel 26 are mounted shelf supports 40, a refrigerating compartment bottom plate mounting member 41, first rail mounting members 42, a partition wall mounting member 43, second rail mounting members 44 and a support 65, as shown in FIG. 5 .
  • the inner plate 31B is bonded to the vacuum insulation panel 32 while mounted with the members 40 to 44 and the support 65.
  • the vacuum insulation panel 32 has two sides, one of which is bonded to the rear surface of the inner plate 31B by an adhesive agent (not shown), as shown in FIGS. 7 , 16 and 18 .
  • the other side of the vacuum insulation panel 32 is opposed to the one side thereof and bonded to an inner surface of the outer plate 30B by an adhesive agent (not shown) .
  • the vacuum insulation panel 32 is fixed in position while being interposed between the inner and outer plates 31B and 30B.
  • the vacuum insulation panel 32 is made up of a core material 35 such as glass wool and a packaging material 38 having gas barrier properties.
  • the core material 35 is put into the packaging material 38, which is then evacuated, whereby the vacuum insulation panel 32 is formed into a plate shape.
  • the right sidewall insulation panel 27 also has an inner plate 31C which is located opposite the inner plate 31B of the left sidewall insulation panel 26 and provided with shelf supports 40, a refrigerating compartment bottom plate mounting member 41, first rail mounting members 42, a partition wall mounting member 43, second rail mounting members 44 and a support 65.
  • the shelf supports 40 of the insulation panel 27 are opposed to the shelf supports 40 of the insulation pane 26.
  • the mounting member 41 of the insulation panel 27 is opposed to the mounting member 41 of the insulation panel 26.
  • the mounting members 42 of the insulation panel 27 are opposed to the mounting members 42 of the insulation panel 26.
  • the mounting member 43 of the insulation panel 27 is opposed to the mounting member 43 of the insulation panel 26.
  • the mounting members 44 of the insulation panel 27 are opposed to the mounting members 44 of the insulation panel 26.
  • the support 65 of the insulation panel 27 is opposed to the support 65 of the insulation panel 26.
  • the insulation panel 25 also has a vacuum insulation panel 32 between an outer plate 30A and an inner plate 31A in the same manner as the insulation panel 26,
  • the ceiling wall insulation panel 28 has an outer plate 30D, an inner plate 31D, a vacuum insulation panel 32 and urethane foam 33 serving as an insulating material.
  • the outer plate 30D is formed of a metal plate.
  • the inner plate 31D is formed of a synthetic-resin integral molded product.
  • the vacuum insulation panel 32 is fixed to a back side of the inner plate 31D by an adhesive or the like.
  • the urethane foam 33 fills a gap between the vacuum insulation panel 32 and the outer plate 30D.
  • the vacuum insulation panel 32 has a lower heat conductivity and a higher insulation performance than the urethane foam 33.
  • the insulation panel 28 has an equipment compartment 28k which is defined at a rear upper interior so as to be recessed into an L-shape. A compressor 36 of a refrigeration cycle is housed in the equipment compartment 28k.
  • the bottom wall insulation panel 29 also has a vacuum insulation panel and urethane foam between the outer plate 30E and the inner plate 31E in the same manner as the insulation panel 28 although the insulation panel 29 has a shape differing from that of the insulation panel 28.
  • the outer plates 30A to 30E constitute an outer surface of the insulated cabinet 2, namely, a cabinet outer surface.
  • the inner plates 31A and 31B constitute an inner surface of the interior.
  • the rear wall insulation panel 25 and the left sidewall insulation panel 26 are connected to each other by a fixture 23A and screws (not shown) and the like at the left rear corner as shown in FIG. 6 .
  • the insulation panel 25 and the insulation panel 27 are also connected to each other by a fixture 23B similar to the fixture 23A and screws and the like at the right rear corner.
  • Each of these corners is provided with insulating materials 34a to 34c such as urethane foam, soft tape or sponge rubber foam tape.
  • the insulation panel 28 and the insulation panel 29 are also connected to the insulation panels 25 and 27 appropriately. Further, fronts of the insulation panels 26 and 27 are connected to each other by front partition members 10 to 13.
  • the insulated cabinet 2 has a front opening edge including right and left front edges, namely, front edges of the insulation panels 26 and 27, as shown in FIGS. 8 and 9 .
  • the front edges of the insulation panels 26 and 27 are reinforced by longitudinal reinforcing members 51.
  • an upper front edge and right and left front edges are reinforced by an upper reinforcing member 52. Note that the members 40 to 44 and 65 are eliminated in FIGS. 8 and 9 for the sake of avoiding drawing complications.
  • the longitudinal reinforcing member 51 has a vertical dimension that is set to be substantially equal to a vertical dimension of the left sidewall insulation panel 26.
  • the longitudinal reinforcing member 51 includes an outer plate 51a, a middle plate 51b and an inner plate 51c and has an open rear thereby to be formed into the shape of a groove, as shown in FIG. 11 .
  • the longitudinal reinforcing member 51 has portions, that is, connections to the front partition members 10, 11 and 13.
  • the inner plates 51c are cut off at the connections, whereby these portions are formed into an L-shape, as shown in FIGS. 13 and 14 .
  • the longitudinal reinforcing member 51 is inserted into the front edge of the left sidewall insulation panel 26 from above or from below as shown in FIG. 10 .
  • a front 30b of the outer plate 30B departs from a front end of the vacuum insulation panel 32 at the front end of the insulation panel 26, coming around to front.
  • the front 30b of the outer plate 30B includes an outer protuberance 30b1, a middle portion 30b2 and an inner extending portion 30b3.
  • the outer protuberance 30b1 protrudes slightly outward relative to front 30b thereby to be spaced from the vacuum insulation panel 32.
  • the middle portion 30b2 is bent inward at the front end of the outer protuberance 30b1.
  • the inner extending portion 30b3 is formed into an L-shape that is bent rearward relative to the inner end of the middle portion 30b2.
  • the front 30b of the outer plate 30B is constructed into a groove shape with an open rear.
  • the longitudinal reinforcing member 51 is inserted so as to be fitted with a groove-shaped inside of the front 30b, being connected to the outer plate 30B by adhesive agent or screwing. Further, the longitudinal reinforcing member 51 is spaced from the inner plate 31B. More specifically, the longitudinal reinforcing member 51 is unconnected with the inner plate 51B.
  • a radiation pipe 53 of the refrigeration cycle is provided between the vacuum insulation panel 32 and the outer protuberance 30b1 in FIG. 10 .
  • a synthetic resin sealing member 54 is provided between the inner plate 31B and the front 30b of the outer plate 30B to seal a gap therebetween.
  • the sealing member 54 has a pipe holder 54a which fixes a dew-proofing pipe 55 preventing dew condensation on the front of the insulated cabinet 2.
  • the dew-proofing pipe 55 is constituted by a part of the radiation pipe of the refrigeration cycle.
  • Other radiation pipes 53 are also provided in the rears of the right and left sidewall insulation panels 27 and 26 respectively, as shown in FIG. 6 .
  • Insulating materials 37 comprising soft tape are provided in the front 30a of the outer plate 30B.
  • the upper reinforcing member 52 includes a middle plate 52a, a left plate 52b and a right plate 52c as shown in FIGS. 8 and 9 .
  • the right and left plates 52c and 52b are constructed to droop perpendicular to both ends of the middle plate 52a respectively.
  • the right and left plates 52c and 52b are inserted into the fronts of the right and left sidewall insulation panels 27 and 26 from above respectively.
  • the right and left plates 52c and 52b are fixed to the front edge of the insulation panel 28 while being in contact with an inner surface of the longitudinal reinforcing member 51, as shown in FIG. 11 .
  • the middle plate 52a is thus fixed to the front edge of the insulation panel 28.
  • the compressor 36 which relatively has a larger weight, is provided in the rear of the insulated cabinet 2.
  • the longitudinal reinforcing member 51 and the upper reinforcing member 52 are provided near the front of the insulated cabinet 2, that is, in front of the compressor 36. Accordingly, the longitudinal reinforcing member 51 and the upper reinforcing member 52 contribute to equalization of weight in the front-back direction in the insulated cabinet 2.
  • the hinge member 17b is provided on a connection between the left sidewall insulation panel 26 of the insulated cabinet 2 and the front partition member 10, as shown in FIGS. 12 and 13 .
  • the hinge member 18b is provided on a connection between the insulation panel 27 and the front partition member 10 as shown in FIG. 2 . Since the hinge members 17b and 18b are mounted in the relationship of bilateral symmetry, only the hinge member 17b will be described.
  • the inner plate 51c of the longitudinal reinforcing member 51 is cut in the connection to the front partition member 10 thereby to be formed into an L-shape as shown in FIG. 10 .
  • the inner extending portion 30b3 as shown in FIG. 10 is also cut in the same manner.
  • a reinforcement connecting member 56 is provided so as to extend over a rear of the left longitudinal reinforcing member 51 and a rear of the front partition member 10 as shown in FIG. 13 .
  • the hinge member 17b extends over a front of the left sidewall insulation panel 26 and a front of the front partition member 10. More specifically, the hinge member 17b is formed with, for example, three screw passing holes 17b1, 17b2 and 17b3. Further, the middle portion 30b2 of the outer plate 30B is formed with a screw passing hole 30m. The middle plate 51b of the longitudinal reinforcing member 51 is formed with a screw passing hole 51b1.
  • the reinforcement connecting member 56 is formed with three screwing holes 56a, 56b and 56c, which include respective female threads and respective tapping holes.
  • the reinforcement connecting member 56 is further formed with a generally dish-shaped recess 56d having a bottom through which a screw passing hole 56e is formed.
  • the front partition member 10 is formed with screw passing holes 10a and 10b.
  • the reinforcement connecting member 56 is placed on the back of the longitudinal reinforcing member 51 and the front partition member 10.
  • the hinge member 17b is then disposed on the front of the middle portion 30b2 of the outer plate 30b and the front of the front partition member 10.
  • a screw 57a is passed through the screw passing holes 17b1, 30m and 51b1 of the hinge member 17b, the outer plate 30B and the longitudinal reinforcing member 51.
  • the screw 57a is further screwed into the screw hole 56a of the reinforcement connecting member 56.
  • the screw 57b is passed through the screw passing holes 17b and 10a of the hinge member 17b2 and the front partition member 10.
  • the screw 57b is further screwed into the screw hole 56b of the reinforcement connecting member 56.
  • the screw 57c is passed through the screw passing holes 17b3 and 10b of the hinge member 17b and the front partition member 10.
  • the screw 57c is then screwed into the screw hole 56c of the reinforcement connecting member 56.
  • the hinge member 17b is thus fixed to the connection between the front partition member 10 and the left sidewall insulation panel 26.
  • a part of the hinge member 17b is fixed to the longitudinal reinforcing member 51.
  • the part of the hinge member 17b is connected via a reinforcement connecting member 56 to the longitudinal reinforcing member 51.
  • the upper hinge members 17a and 18a are fixed by screws to right and left corners of the upper reinforcing member 52, that is, the vicinity of the connection between the middle plate 52a and the right and left plates 52c and 52b at the upper surface side of the ceiling wall insulation panel 28.
  • a partition rear cover 58 made of a synthetic resin is provided on the back of the front partition member 10.
  • the partition rear cover 58 is mounted to the reinforcement connecting member 56 before the front partition member 10 is mounted to the reinforcement connecting member 56.
  • the reinforcement connecting member 56 is formed with the screw passing hole 56e, through which a countersunk screw 59 is passed.
  • the countersunk screw 59 passed through the screw passing hole 56e is screwed into the partition rear cover 58 disposed on the back of the reinforcement connecting member 56.
  • the front partition member 10 is subsequently mounted to the reinforcement connecting member 56.
  • the partition rear cover 58 is fixed via the reinforcement connecting member 56 to the front partition member 10.
  • connection between the front partition member 11 and the left sidewall insulation panel 26 will be described with reference to FIGS. 14 and 15 .
  • the connections between the front partition member 11 and the right and left sidewall insulation panels 27 and 26 are bilaterally symmetric.
  • the longitudinal reinforcing member 51 is formed in a connection thereof with the front partition member 11 into an L-shape by cutting a part of the inner plate 51c as shown in FIG. 10 .
  • the outer plate 30B has a connection thereof with the front partition member 11.
  • the inner extending portion 30b3 in the connection is also cut as shown in FIG. 10 .
  • a reinforcement backing member 61 is provided so as to extend over the rears of the longitudinal reinforcing member 51 and the front partition member 11.
  • the front partition member 11 is connected via the reinforcement backing member 61 to the longitudinal reinforcing member 51.
  • the middle portion 30b2 of the outer plate 30B is formed with a screw passing hole 30n.
  • the middle plate 51b of the longitudinal reinforcing member 51 is formed with a screw passing hole 51b2.
  • the reinforcement backing member 61 is further formed with three screw holes 61a, 61b and 61c and a generally dish-shaped recess 61d, which has a bottom through which a screw passing hole 61e is formed.
  • the front partition member 11 is formed with screw passing holes 11a and 11b.
  • the reinforcement backing member 61 is firstly disposed behind the longitudinal reinforcing member 51 and the front partition member 11.
  • a screw 62a is passed through the screw passing holes 30n and 51b2 of the outer plate 30B and the longitudinal reinforcing member 51 in turn.
  • the screw 62a is then screwed into the screw hole 61a of the reinforcement backing member 61.
  • a screw 62b is passed through the screw passing hole 11a of the front partition member 11, and a screw 62c is passed through the screw passing hole 11b of the front partition member 11, in the same manner.
  • the screw 62b is then screwed into the screw hole 61b of the reinforcement backing member 61, and the screw 62c is then screwed into the screw hole 61c of the reinforcement backing member 61.
  • the front partition member 11 and the longitudinal reinforcing member 51 are fixed to each other by the reinforcement backing member 61.
  • a partition rear cover 63 made of a synthetic resin is provided behind the front partition member 11.
  • the partition rear cover 63 is disposed on the reinforcement backing member 61 before the front partition member 11 is mounted to the left sidewall insulation panel 26.
  • the reinforcement backing member 61 is formed with the screw passing hole 61e through which a countersunk screw 64 is passed.
  • the countersunk screw 64 passed through the screw passing hole 61e is screwed into the partition rear cover 63 disposed behind the reinforcement backing member 61.
  • the front partition member 11 is mounted to the reinforcement backing member 61.
  • the partition rear cover 63 is fixed via the reinforcement backing member 61 to the front partition member 11.
  • the partition rear cover 63 is supported by a support 65 provided on the left sidewall insulation panel 26.
  • the support 65 is formed of a synthetic resin, for example and has a protruding portion 65a and extending portions 65b and 65c integrally formed therewith, as shown in FIG. 15 .
  • the protruding portion 65a is formed into a rectangular block shape and has a screw passing hole 65d and a counterbore 65e.
  • the screw passing hole 65d is formed so as to vertically extend through the protruding portion 65a into a circular shape.
  • the screw passing hole 65d is formed into the shape of an elongated hole which is long in the right-left direction.
  • the counterbore 65e has an inner diameter larger than an inner diameter of the screw passing hole 65d and is formed so as to be recessed upwardly from the underside of the protruding portion 65a to a middle part of the thickness of the protruding portion 65a.
  • the extending portions 65b and 65c are each formed into the shape of a rectangular plate extending vertically from a horizontal end of the protruding portion 65a, in this case, the end at the inner plate 31B side.
  • Each one of the extending portions 65b and 65c has a horizontal thickness that is smaller than a vertical thickness of the protruding portion 65a.
  • the inner plate 31B is formed with a hole 31k, which is formed so as to extend through the inner plate 31B into a rectangular shape slightly larger than the protruding portion 65a and smaller than outlines of the extending portions 65b and 65c.
  • the support 65 is provided on the inner plate 31B when the left sidewall insulation panel 26 is assembled.
  • the protruding portion 65a of the support 65 is passed through the hole 31k of the inner plate 31B outward from inside the left sidewall insulation panel 26, that is, to the interior side from the vacuum insulation panel 32 side.
  • Adhesive is provided between the extending portions 65b and 65c and the inner plate 31B and between the extending portions 65b and 65c and the vacuum insulation panel 26.
  • the support 65 is bonded to the vacuum insulation panel 32 thereby to be fixed while the extending portions 65b and 65c are held between the inner plate 31B and the vacuum insulation panel 32.
  • the partition rear cover 63 has a supported portion 63a.
  • the supported portion 63a is formed by recessing a lower part of the cover 63 corresponding to the support 65 upwardly from below.
  • the supported portion 63a has a screw hole 63b formed to extend upward from the lower side.
  • the protruding portion 65a of the support 65 is inserted into the supported portion 63a.
  • the screw 66 having passed through the screw passing hole 65d is screwed into the screw hole 63b.
  • the partition rear cover 63 is fixed to the support 65 by the screw 66 while the supported portion 63a provided on the lower part thereof is supported by the support 65.
  • the partition rear cover 63 has right and left side dimensions which are set so that a gap G is defined between the right and left insulation panels 27 and 26. More specifically, the right and left insulation panels 27 and 26 are assembled with reference to an outer width Hs of the insulated cabinet 2 shown in FIG. 6 . In this case, variations in the thicknesses of the right and left sidewall insulation panels 27 and 26 are absorbed by changing an inner width Hu of the insulated cabinet 2. As a result, the variations in the thicknesses of the panels 27 and 26 caused during the manufacturing process are tolerated to some degree.
  • the inner width Hu of the insulated cabinet 2 becomes minimum when the thicknesses of the right and left sidewall insulation panels 27 and 26 are increased to respective maximum values in tolerable ranges.
  • the right and left side dimensions of the partition rear cover 63 are set so that the gap G is defined even when the inner width Hu of the insulated cabinet 2 is minimum.
  • the gap G is small.
  • the gap G may be filled with an insulating material such as soft tape.
  • shelf supports 40 provided on the left sidewall insulation panel 26, a mounting member 41 for a refrigerating compartment bottom plate, first rail mounting members 42, partition wall mounting members 43 and second rail mounting members 44.
  • Each shelf support 40 has a plurality of protrusions 40a and 40b and an extending portion 40c as shown in FIGS. 16 and 17 .
  • the extending portion 40c is formed into a vertically long rectangular plate shape.
  • the protrusions 40a and 40b are each formed into a hook shape directed upward and protrude to the interior side from right and left ends of the extending portion 40c.
  • the right and left protrusions 40a are paired, and the right and left protrusions 40b are also paired.
  • the protrusions 40b are located below the protrusions 40a.
  • the shelf supports 40 are formed by punching the protrusions 40a and 40b and the extending portion 40c from a metal plate and thereafter bending the protrusions 40a and 40b.
  • a shelf (not shown) is placed on the hook-shaped protrusions 40a and 40b of the shelf support 40.
  • Holes 31a and 31b are formed through the inner plate 31B so as to be spaced away from each other in the up-down direction.
  • the holes 31a and 31b are formed into a rectangular shape such that the protrusions 40a and 40b are insertable into the holes 31a and 31b respectively.
  • the protrusions 40a and 40b are inserted into the holes 31a and 31b from the rear side of the inner plate 31B, protruding to the front side of the inner plate 31B.
  • the extending portion 40c is bonded to peripheral portions of the holes 31a and 31b in the rear of the inner plate 31B.
  • the inner plate 31B provided with the extending portion 40c has the rear surface bonded to the vacuum insulation panel 32 as shown in FIG. 5 .
  • the shelf support 40 is thus fixed while being held between the inner plate 31B and the vacuum insulation panel 32 as shown in FIG. 16 .
  • the refrigerating compartment bottom plate mounting member 41 also serves as reinforcing member mounting portions and are provided below the refrigerating compartment bottom plate 8 as shown in FIG. 3 .
  • the mounting member 41 is formed into an elongated shape, extending in the front-back direction as a whole.
  • the mounting member 41 has a protrusion 41a, an extending portion 41b and an engagement portion 41c all of which are formed integrally therewith.
  • the protrusion 41a, the extending portion 41b and the engagement portion 41c are formed together by bending a metal plate .
  • the extending portion 41b is formed into the shape of a rectangular plate long in the front-back direction and is parallel to the inner plate 31B, that is, substantially vertical.
  • the protrusion 41a is formed by bending an upper edge of the extending portion 41b to the interior side into a substantially horizontal state.
  • the engagement portion 41c is formed by bending a lower edge of the extending portion 41b to the interior side into a substantially horizontal state and further by bending an interior side end thereof downward into a substantially vertical state .
  • the mounting member 41 includes a part extending from the protrusion 41a to the extending portion 41b, and the part has an L-shaped longitudinal section. More specifically, the protrusion 41a and the extending portion 41b are continuous such that the longitudinal section is L-shaped. Furthermore, the mounting member 41 has a longitudinal section which is groove-shaped with its interior side being open.
  • the protrusion 41a is formed with a plurality of arrangement holes 41d and a plurality of screw passing holes 41e as shown in FIG. 19 .
  • the arrangement holes 41d are slit-like connecting holes extending lengthwise with respect to the protrusion 41a, that is, in the front-back direction.
  • the screw passing holes 41e are connecting holes comprising holes elongated in the right-left direction.
  • the inner plate 31B is formed with holes 31d and 31e as shown in FIG. 18 . Each of the holes 31d and 31e is formed into the shape of a slit.
  • the protrusion 41a is inserted into the hole 31d from the rear of the inner plate 31B.
  • the engagement portion 41c is inserted into the hole 31e from the rear of the inner plate 31B.
  • the extending portion 41b is bonded to the rear surface of the inner plate 31B and the vacuum insulation panel 32 while being held between the rear surface of the inner plate 31B and the vacuum insulation panel 32.
  • the mounting strength of the mounting member 41 to the left sidewall insulation panel 26 is improved by engaging the engagement portion 41c with the hole 31e.
  • the mounting members 41 are provided so as to be opposed to the right and left inner plates 31C and 31B thereby to be paired with the inner plates 31C and 31B respectively.
  • a bridge-shaped reinforcing member 71 has one end and the other end both connected to the mounting members 41 respectively.
  • the reinforcing member 71 is formed by upwardly bending both ends of a rectangular metal plate long in the right-left direction.
  • the ends of the reinforcing member 71 are provided on front-back central portions of the mounting members 41 respectively. Screws 72 are passed, from below, through the screw passing holes 41e in the front-back central portions of the mounting members 41 respectively.
  • the screws 72 are screwed into the reinforcing members 71 respectively, whereby both ends of the reinforcing members 71 are fixed to the right and left mounting members 41.
  • the right and left mounting members 41 are connected to each other by the reinforcing members 71.
  • each screw passing hole 41e is formed into a hole elongated in the right-left direction.
  • connecting positions of the reinforcing members 71 to the mounting members 41 are adjustable. Accordingly, the reinforcing members 71 can be mounted to the mounting members 41 desirably respectively even when thicknesses of the right and left sidewall insulation panels 26 and 27 vary.
  • the right and left sidewall insulation panels 26 and 27 are assembled on the basis of the outer widths Hu of the insulated cabinet 2 shown in FIG. 6 .
  • the variations in the thicknesses of the insulation panels 26 and 27 are absorbed by changing the inner width of the insulated cabinet 2.
  • the screw passing hole 41e responds to the changes in the width Hu of the insulated cabinet 2, the screw passing hole 41e is formed into the shape of a hole larger than a diameter of the screw 72.
  • the mounting position of the reinforcing member 71 relative to the mounting member 41 is adjustable according to the changes in the inner width Hu of the insulated cabinet 2.
  • the reinforcing member 71 is then connected to the mounting members 41 strongly after the mounting positions thereof to the right and left mounting members 41 have been adjusted. This can effectively reduce deformation of the insulation panels 26 and 27 in the curvature direction.
  • the refrigerating compartment bottom plate 8 has engagement protrusions (not shown) protruding downward from the underside.
  • the bottom plate 8 is disposed by fitting the engagement protrusions into the arrangement holes 41d from above the mounting members 41.
  • the compressor 36 which is relatively heavier is provided near the rear of the insulated cabinet 2.
  • the reinforcing member 71 is provided near the front of the insulated cabinet 2. Accordingly, the reinforcing member 71 contributes to equalization in the weight of the insulated cabinet 2 in the front-back direction.
  • Each of the mounting members 42 is made of a metal plate and has a protrusion 42a, an extending portion 42b, an upper engagement portion and a lower engagement portion 42d, all of which are formed integrally with each mounting member 42, for example.
  • the protrusion 42a protrudes to the interior side from the inner plate 31B and is formed into a substantially circular shape with the interior side bottom being closed. In this case, the protrusion 42a is formed into a cylindrical shape approximate to a cup-shape.
  • the extending portion 42b is formed into the shape of a plate extending in the up-down direction from a hem of the protrusion 42a.
  • the upper engagement portion 42c is provided on a central portion of the extending portion 22b in the front-back direction.
  • the upper engagement portion 42c protrudes upward into an L-shape. More specifically, the upper engagement portion 42c is bent so as to protrude to the interior side from an upper end of the extending portion 42b, and the protruding distal end of the upper engagement portion 42c is bent upward.
  • Two lower engagement portions 42d are provided on a lower part of the extending portion so as to be juxtaposed in the front-back direction. The lower engagement portion 42d is bent so as to protrude to the interior side from a lower end of the extending portion 42b.
  • the protrusion 42a is formed with a screw hole 42e.
  • the inner plate 31B is formed with a circular through hole 31f.
  • the protrusion 42a of the first rail mounting member 42 is inserted into the hole 31f from the rear side of the inner plate 31B, protruding to the interior side from the hole 31f.
  • the inner plate 31B is formed with an upper engagement hole 31g and a lower engagement hole 31h.
  • Each of the upper and lower engagement holes 31g and 31h is formed through the inner plate 31B into the shape of a slit which is long in the front-back direction.
  • a single upper engagement hole 31g is formed above the hole 31f.
  • Two lower engagement holes 31h are formed below the hole 31f so as to be juxtaposed in the front-back direction.
  • the first rail mounting member 42 will be mounted to the inner plate 31B as follows. Firstly, the upper engagement portion 42c of the first rail mounting member 42 is inserted into the upper engagement hole 31g from the rear side of the inner plate 31B. The protrusion 42a is inserted into the hole 31f and the lower engagement portion 42d is inserted into the lower engagement hole 31h while the first rail mounting member 42 is rotated about the upper engagement portion 42c to the inner plate 31B side. In this case, an adhesive agent is applied between the extending portion 42b and the rear surface of the inner plate 31B, so that the extending portion 42b is bonded to the rear surface of the inner plate 31B. Further, the extending portion 42b is also bonded to the vacuum insulation panel 32 by an adhesive agent or the like. The extending portion 42b is thus fixed to the inner plate 31B and the vacuum insulation panel 32 by the adhesive agent while being held between the inner plate 31B and the vacuum insulation panel 32.
  • a rail 45 is mounted to the first rail mounting member 42 as shown in FIG. 21 .
  • the rail 45 extends in the front-rear direction to guide the front-rear movement of a support frame (not shown) which is to be mounted on the rear of the door 19 of the vegetable compartment 4.
  • the rail 45 is fixed by screwing a screw into the screw hole 42e formed in the protrusion 42a of the first rail mounting member 42.
  • the partition wall mounting member 43 also serves as a reinforcing member mounting portion and is provided near the insulation partition wall 9, in this case, under the insulation partition wall 9 so as to extend in the front-back direction.
  • the partition wall mounting member 43 will be described with reference to FIGS. 22 and 23 .
  • the partition wall mounting member 43 is constructed in the same manner as the refrigerating compartment bottom plate mounting member 41. More specifically, the partition wall mounting member 43 is formed of, for example, a metal plate into an elongated shape extending in the front-back direction as a whole.
  • the partition wall mounting member 43 has a protrusion 43a, an extending portion 43b and an engagement portion 43c.
  • the protrusion 43a, the extending portion 43b and the engagement portion 43c are formed integrally with the mounting member 43 by bending the metal plate, for example.
  • the extending portion 43b is formed into the shape of a rectangular plate which is parallel to the inner plate 31B, that is, substantially vertical and is long in the front-back direction.
  • the protrusion 43a is formed by bending an upper edge of the extending portion 43b substantially horizontally to the interior side.
  • the engagement portion 43c is formed by downwardly bending a lower edge of the extending portion 43b substantially horizontally.
  • a part of the mounting member 43 from the protrusion 43a to the extending portion 43b has an L-shaped longitudinal section. More specifically, the protrusion 43a and the extending portion 43b are continuous such that the longitudinal sections are L-shaped. Further, the mounting member 43 has a longitudinal section that is groove-shaped and has an open interior side as a whole.
  • the protrusion 43a is formed with a plurality of arrangement holes 43d.
  • the arrangement holes 43d are slit-like connecting holes extending lengthwise with respect to the protrusion 43a, that is, in the front-back direction.
  • the inner plate 31B is formed with holes 31i and 31j both of which are also formed into a slit-shape.
  • the protrusion 43a is inserted into the hole 31i from the rear side of the inner plate 31B.
  • the engagement portion 43c is inserted into the hole 31j from the rear side of the inner plate 31B.
  • the extending portion 43b of the mounting member 43 is bonded to the rear surface of the inner plate 31B and the vacuum insulation panel 32 while being held therebetween. In this case, the engagement portion 43c of the mounting member 43 is in engagement with the hole 31j. This improves the mounting strength of the mounting member 43 to the insulation panel 26.
  • the partition wall 9 has an insulating material 9b, such as urethane foam, provided in the inside of the outer casing 9a as shown in FIG. 23 .
  • the outer casing 9a has protrusions 9c formed integrally therewith.
  • the protrusions 9c are formed into a columnar shape and protrude downward from the undersides of right and left ends of the outer casing 9a.
  • FIG. 23 shows only the protrusion 9c of the left end.
  • the protrusions 9c are inserted into the arrangement holes 43d of the mounting members 43 mounted on the insulation panels 26 and 27 to be engaged with the arrangement holes 43d, respectively.
  • the partition wall 9 is provided in the insulated cabinet 2 so as to partition the interior thereof vertically.
  • the partition wall 9 also serves as a bridge-shaped reinforcing member.
  • the partition wall 9 has a horizontal dimension which is set so as to cause a gap G in view of the variations in the thickness of the right and left insulation panels 26 and 27, in the same manner as the partition rear cover 63. Also, for the same reason, each arrangement hole 43d has an inner diameter which is set to be slightly larger than an outer diameter of each protrusion 9c of the partition wall 9. As a result, the connecting position of the partition wall 9 to the mounting member 43 is adjustable.
  • Two second rail mounting members 44 are provided on each of right and left walls of the main freezing compartment 7 so as to be disposed in the front-back direction, as shown in FIG. 3 .
  • Each second rail mounting member 44 has the same construction as each first rail mounting member 42 and is mounted on the inner plate 31B in the same manner as each first rail mounting member 42. It is desirable to pack an insulating material such as a soft tape in the gap G.
  • the insulated cabinet 2 has a pair of refrigerating compartment bottom plate mounting members 41 serving as the reinforcing member mounting portions.
  • the mounting members 41 are mounted on the opposed inner surfaces of the inner plates 31B and 31C opposed to each other in the interior of the insulated cabinet 2.
  • the mounting members 41 are connected to each other by the bridge-shaped reinforcing member 71. More specifically, one end of the bridge-shaped reinforcing member 71 is connected to the left mounting member 41 in this case, and the other end of the bridge-shaped reinforcing member 71 is connected to the right mounting member 41.
  • the right and left insulation panels 27 and 26 serving as the insulation walls draw each other by the bridge-shaped reinforcing member 71.
  • one end of the bridge-shaped reinforcing member 71 is connected to the left mounting member 41 in this case, and the other end of the bridge-shaped reinforcing member 71 is connected to the right mounting member 41.
  • the right and left insulation panels 27 and 26 serving as the insulation walls draw each other by the bridge-shaped reinforcing member 71.
  • force acts on each of the insulation panels 26 and 27 so as to draw each panel in a direction opposed to deformation causing each panel to deform outward, that is, to the interior side. This reduces outward deformation of each of the insulation panels 26 and 27.
  • the deformation of the insulation panels 26 and 27 in the curvature direction is reduced by the mounting members 41 and the bridge-shaped reinforcing member 71.
  • the deformation reduction is effective particularly in the case where the thicknesses of the insulation panels 26 and 27 are not more than 35 mm.
  • the vacuum insulation panel 32 has a thickness set to 20 mm, and the thicknesses of the outer and inner panels 30B and 31B total 1.5 mm. Accordingly, a total thickness of the insulation panels 26 and 27 is 21.5 mm and is accordingly a further effective value not more than 25 mm.
  • each of the insulation panels 25 to 29 is rendered thinner by the provision of the vacuum insulation panel 32. Since the insulation panels 26 and 27 form the front opening of the insulated cabinet 2, the front edges of the insulation panels 26 and 27 are not connected to another or other members. Hence, when simply rendered thinner, the insulation panels 26 and 27 tend to be easily deformed, for example, curved. In the embodiment, however, the insulation panels 26 and 27 are connected to each other by the bridge-shaped reinforcing member 71. This can effectively reduce the deformation of the insulation panels 26 and 27 in the curvature direction and is accordingly effective for reduction in the thicknesses of the insulation panels 26 and 27.
  • the gap between an outer plate or the outer box and an inner plate or the inner box composing the insulated cabinet may be filled with urethane foam.
  • the aforementioned connection of the insulation panels 26 and 27 by the reinforcing member 71 is greatly effective in the thickness reduction of insulation walls even when the insulated cabinet is thus constructed.
  • the refrigerating compartment bottom plate 8 In the insulated cabinet 2 are provided the refrigerating compartment bottom plate 8, the paired refrigerating compartment bottom plate mounting members 41 serving as the reinforcing member mounting portions, as shown in FIGS. 3 , 18 and 19 .
  • the bottom plate 8 which is independent of the insulated cabinet 2, partitions the interior of the insulated cabinet 2 vertically. Articles to be stored are placed on the bottom plate 8.
  • the refrigerating compartment bottom plate mounting members 41 are provided on the opposed inner surfaces of the inner plates 31B and 31C near the right and left ends of the bottom plate 8 and under the bottom plate 8. Both ends of the reinforcing member 71 are connected to the mounting members 41 respectively. According to this construction, a storage space for articles can be prevented from being compressed by the reinforcing member 71.
  • Deformation of the insulation panels 26 and 27 is reduced.
  • the deformation includes outward curvature in portions of the insulation panels 26 and 27 adjacent to the bottom plate 8. Accordingly, formation of a gap due to curvature of the insulation panels 26 and 27 is reduced between the bottom plate 8 and the insulation panels 26 and 27.
  • the bridge-shaped reinforcing member 71 is formed into the shape of an elongated bar.
  • the reinforcing member 71 is located substantially in the middle in the front-back direction between the opposed inner plates 31B and 31C of the insulation panels 26 and 27. According to this, deformation in the curvature direction is predicted in the middle portions of the inner plates 31B and 31C in the front-back direction.
  • the inner plates 31B and 31C can be fixed in the middle portions in the front-back direction with the result that deformation of the inner plates 31B and 31C in the curvature direction can be reduced more effectively.
  • the insulation panels 26 and 27 include the respective rears connected to each other by the rear wall insulation panel 25 and the respective fronts connected to each other by the front partition member 10, in addition to the connection of middle portions by the reinforcing member 71. This can reduce deformation of the insulation panels 26 and 27 in the curvature direction more effectively.
  • the reinforcing member 71 should not be limited to the elongated bar shape but may be broader in the front-back direction.
  • the insulation partition wall 9 and the paired partition wall mounting members 43 serving as the reinforcing member mounting portions, as shown in FIGS. 3 , 22 and 23 .
  • the partition wall 9 which is independent of the insulated cabinet 2, partitions the interior of the insulated cabinet 2 vertically.
  • the mounting members 43 are provided near the right and left ends of the partition wall 9 on the opposed inner surfaces of the inner plates 31C and 31B respectively. According to this, the partition wall 9 is connected to the paired mounting members 43, the partition wall 9 can be used as the bridge-shaped reinforcing member. Accordingly, the partition wall 9 can also reduce the deformation of the insulation panels 26 and 27 with the result of curvature of the insulation panels 26 and 27.
  • the partition wall 9 reduces the deformation of the insulation panels 26 and 27 such that the insulation panels 26 and 27 are outwardly curved. This reduces formation of the gap between the partition wall 9 and the insulation panels 26 and 27 resulting from curvature of the insulation panels 26 and 27.
  • the insulation panels 26 and 27 are connected to each other by two members, that is, the reinforcing member 71 and the partition wall 9, the deformation in the curvature direction can be reduced further effectively. At least one of the reinforcing member 71 and the partition wall 9 suffices for reduction of deformation of the insulation panels 26 and 27 in the curvature direction.
  • the mounting members 41 and the mounting members 43 both serving as the reinforcing member mounting portions are constructed of members independent of the inner plates 31B and 31C.
  • Each mounting member 41 has the protrusion 41a and the extending portion 41b extending so as to droop from the protrusion 41a, both of which are formed integrally with each mounting member 41.
  • the protrusion 41a and the extending portion 41b are continuous so that the longitudinal section is L-shaped.
  • the inner plates 31B and 31C are formed with the respective holes 31d.
  • the extending portions 41b of the mounting members 41 are bonded to the peripheries of the holes 31d in the back sides of the inner plates 31B and 31C and the vacuum insulation panels 32 respectively. Further, the protrusions 41a protrude to the interior side from the holes 31d respectively. According to this, the mounting members 41 independent of the inner plates 31B and 31C can be rigidly mounted to the insulation panels 26 and 27 respectively.
  • the mounting members 41 include the engagement portions 41c projecting substantially horizontally from the lower ends of the extending portions 41b as well as the protrusions 41a respectively.
  • the engagement portions 41c are also inserted into the holes 31e formed in the inner plates 31B and 31C from the rear side of the inner plates 31B and 31C thereby to be engaged with the holes 31e respectively.
  • the mounting strength of the mounting members 41 against the insulation panels 26 and 27 can be further improved. Since the mounting members 43 have the same construction as the mounting members 41, the mounting members 43 can achieve the same effect as the mounting members 41.
  • the protrusions 43a of the mounting members 43 serving as the reinforcing member mounting portions are formed with the arrangement holes 43d serving as the connecting holes respectively, as shown in FIG. 23 .
  • the partition wall 9 serving as the bridge-shaped reinforcing member has both ends formed with the respective protrusions 9c. The protrusions 9c are inserted into the arrangement holes 43d thereby to be engaged with the arrangement holes 43d respectively. Accordingly, the partition wall 9 can be connected to the mounting members 43 without use of screws or the like.
  • the compressor 36 is provided in the upper rear interior of the insulated cabinet 2.
  • the reinforcing member 71 is provided in front of the compressor 36. More specifically, the compressor 36 which is relatively heavier is provided in the rear interior of the insulated cabinet 2, whereas the reinforcing member 71 is in the front interior of the insulated cabinet 2. Accordingly, the reinforcing member 71 contributes to equalization in the weight of the insulated cabinet 2 in the front-back direction.
  • the screw passing holes 41e of the mounting members 41 are formed into the holes which are elongated in the right-left direction, as shown in FIG. 18 . According to this, the connecting position of the reinforcing member 71 in the right-left direction is adjustable relative to each mounting member 41. As a result, the reinforcing member 71 can be desirably mounted to the mounting members 41 even when the thicknesses of the insulation panels 26 and 27 vary.
  • Each arrangement hole 43d of the mounting members 43 has an inner diameter which is set to be slightly larger than an outer diameter of each protrusion 9c of the partition wall 9. As a result, the partition wall 9 can be desirably mounted to the mounting members 43 even when the thicknesses of the insulation panels 26 and 27 vary.
  • the reinforcing member is constituted by the partition wall 9 which is independent of the insulated cabinet 2 and partitions the interior of the insulated cabinet 2 vertically. Accordingly, the insulation panels 26 and 27 are connected to each other by the partition wall 9 thereby to be drawn to each other with the result that the deformation of the insulation panels 26 and 27, such as outward curvature, is reduced.
  • the refrigerator 1 according to the second embodiment is provided with a refrigerating compartment bottom plate mounting member 81.
  • the mounting member 81 corresponds to the mounting member 41 in the first embodiment.
  • the mounting member 81 is made of a metal, for example and includes a protrusion 81a and extending portions 81b and 81c, all of which are formed integrally therewith.
  • the protrusion 81a is formed into a rectangular plate shape and extends substantially horizontally and is long in the front-back direction.
  • Each of the extending portions 81b and 81c is formed into a rectangular shape and is long in the front-back direction.
  • the extending portions 81b and 81c extend in the up-down direction continuously from a proximal end of the protrusion 81a perpendicular to the protrusion 81a.
  • the mounting member 81 includes a part from the protrusion 81a to the extending portions 81b and 81c, and the part has a T-shaped longitudinal section.
  • the protrusion 81a is formed with a screw passing hole 81d, which corresponds to the screw passing hole 41e in the first embodiment.
  • the mounting member 81 can improve the mounting strength to the insulation panels 26 and 27 as compared with the construction that the protrusion 81a and the extending portion 81b or the protrusion 81a and the extending portion 81c are formed into the L-shape.
  • the inner plates 31B and 31C have refrigerating compartment bottom plate mounting members 83 which serve as reinforcing member mounting portions and are formed integrally with the inner plates 31B and 31C, respectively.
  • the inner plates 31B and 31C are not sheet members but integrally molded articles by vacuum forming, namely, die-formed articles.
  • the mounting members 83 are formed with screw holes 83a respectively.
  • the bridge-shaped reinforcing members 84 are formed with screw passing holes 84a respectively. Each screw passing hole 84a is formed into a hole elongated in the right-left direction.
  • Screws 72 are passed through the screw passing holes 84a from upper sides of the reinforcing members 84 respectively. The screws 72 are then screwed into the screw holes 83a respectively. As a result, the bridge-shaped reinforcing members 84 are fixed to the mounting members 83 respectively. According to the third embodiment, the number of parts can be reduced.
  • the outer box of the insulated cabinet 2 is constructed by combining a plurality of divided outer plates, in this case, the outer plate 30A of the rear wall insulation panel 25, the outer plate 30B of the left sidewall insulation panel 26, the outer plate 30C of the right sidewall insulation panel 27, the outer plate 30D of the ceiling wall insulation panel 28 and the outer plate 30E of the bottom wall insulation panel 29.
  • the outer box of the insulated cabinet 2 in the fourth embodiment includes a single outer plate 85 which is a part of the outer plate constituting the outer box of the insulated cabinet and corresponds to the outer plates of the left sidewall insulation panel 26, the right sidewall insulation panel 27 and the bottom wall insulation panel 29.
  • the refrigerating compartment bottom plate 8 may be constructed to also serve as the bridge-shaped reinforcing member. According to this, the refrigerating compartment bottom plate 8 can reduce deformation of the left sidewall insulation panel 26 and the right sidewall insulation panel 27 in the direction of curvature.
  • the shelf supports 40 may be constructed to also serve as the reinforcing member mounting portions. In this case, shelf plates supported by the shelf supports 40 may serve as the bridge-shaped reinforcing members.
  • the insulated cabinet 2 is divided into the rear, right and left, and upper and lower walls, namely, the rear wall insulation panel 25, the left sidewall insulation panel 26, the right sidewall insulation panel 27, the ceiling wall insulation panel 28 and the bottom wall insulation panel 29.
  • the rear wall and the upper wall may be combined into a single wall, and the right and left sidewalls may be connected to the single wall.
  • an appropriate dividing manner may be selected.
  • the vacuum insulation panels may be formed into the shapes of flat plates corresponding to the respective walls or may be folded so as to cover a plurality of walls.
  • the vacuum insulation panels, urethane foam or the like may be appropriately disposed between the outer and inner plates of the respective walls of the insulated cabinet. Further, urethane foam may be used as the insulating material of the insulated cabinet, instead of the vacuum insulation panels.
  • the refrigerator of each above-described embodiment includes the insulated cabinet constructed into the box shape and having the insulating material between the outer plates constituting the outer surface and the inner plates constituting the inner surface, a pair of reinforcing member mounting portions provided on a pair of the inner plates opposed to each other in the interior, the bridge-shaped reinforcing member having one end connected to one of the paired reinforcing member mounting portions and the other end connected to the other reinforcing member mounting portion. This can reduce an outward expansion of the walls of the insulated cabinet.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
EP12854811.2A 2011-12-06 2012-10-05 Refrigerator Not-in-force EP2789946B1 (en)

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PCT/JP2012/075983 WO2013084582A1 (ja) 2011-12-06 2012-10-05 冷蔵庫

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CN112902525B (zh) * 2019-12-04 2024-05-31 博西华电器（江苏）有限公司 冰箱
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CN104105933A (zh) 2014-10-15
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WO2013084582A1 (ja) 2013-06-13
TW201323811A (zh) 2013-06-16
EP2789946A1 (en) 2014-10-15
TWI512255B (zh) 2015-12-11
JP2013119963A (ja) 2013-06-17
CN104105933B (zh) 2016-05-04

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