TWI515402B - Refrigerator - Google Patents

Description

refrigerator

Embodiments of the invention relate to a refrigerator.

In the refrigerator, there is a case in which a heat insulating box body is provided, and the heat insulating box body is provided with a vacuum heat insulating panel in a space between the inner box and the outer box. The inner box includes an integrally molded product of synthetic resin, and the integrally molded product of the synthetic resin is integrally formed by injection molding or vacuum forming.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open No. Hei 4-260780

Patent Document 2: Japanese Patent Laid-Open No. Hei 6-147744

In the above-described refrigerator, a protruding portion such as a support portion or a guide rail mounting portion that supports a shelf or the like provided in the refrigerator, which supports the draw-out container, is not formed in the inner case . Such protrusions are an integral part of the refrigerator and must therefore be placed in the inner box.

However, if the protruding portion is to be provided in the above-described refrigerator, it is necessary to form the protruding portion from the parts independent of the inner box and to mount the independent part, which causes problems such as a large number of manufacturing man-hours.

Accordingly, the present invention provides a refrigerator capable of achieving a reduction in manufacturing man-hours.

A refrigerator according to an embodiment, comprising a heat insulating box, the heat insulating box The utility model comprises: an outer box, an inner box and a vacuum heat insulation panel, wherein the vacuum heat insulation panel is disposed in a space between the outer box and the inner box, wherein the refrigerator is characterized in that the inner box is protruded into the refrigerator The protruding portion includes an inner plate portion divided into a plurality of, and at least one of the plurality of inner plate portions includes an integrally molded product in which the protruding portion is integrally formed.

Thereby, it is possible to provide a refrigerator capable of achieving a reduction in manufacturing man-hours.

<First Embodiment>

First, the refrigerator 1 of the first embodiment will be described with reference to Figs. 1 to 20 . The refrigerator 1 shown in FIG. 3 is mainly constituted by a heat insulating box 2 in which an opening is formed on the front surface. On the front surface side of the heat insulating box 2, a left-hand type revolving door 3 of a French type (French type), a revolving door 4 on the right side, and a plurality of drawing-out doors 5 to 8 are attached.

Each of the doors 3 to 8 includes an insulated door having a heat insulating material (not shown) inside. As shown in FIGS. 1 and 2, the revolving door 3 on the left side and the revolving door 4 on the right side are connected to the upper and lower pair of hinge portions 3a and 3b attached to the heat insulating box 2, and the same pair of upper and lower hinge portions 4a. 4b, and it is supported by rotation freely.

The heat insulating box 2 is configured by connecting a left heat insulating wall 9 as a unit heat insulating wall, a right heat insulating wall 10, an upper heat insulating wall 11, a lower heat insulating wall 12, and a rear heat insulating wall 13. These insulating walls 9 to 13 will be described later.

Beam members 51, 52, and 53 are laterally stretched between the left and right edge portions of the opening of the heat insulating box 2, and longitudinal members 54 are longitudinally supported on the beam members 52 and 53 at the intermediate portion in the left-right direction. .

Further, a first partition wall 55 that partitions the storage compartment is attached to the rear side of the beam member 51, and a second partition wall 56 that partitions the different storage compartments is attached to the rear side of the beam member 52.

In the heat insulating box 2, the first partition wall 55 forms a refrigerator compartment 57 as a storage compartment above the first partition wall 55, and the second partition wall 56 forms a vegetable compartment as a storage compartment between the first partition wall 55 and the first partition wall 55. 58.

Further, as seen from the front, in the space region between the beam member 52 and the same beam member 53, a small freezer compartment 59 as a storage compartment is formed on the right side of the stringer member 54, and an ice making compartment 60 as a storage compartment is formed on the left side. .

Further, as viewed from the front, the lower space region of the beam member 53 forms a freezer compartment 61 as a storage compartment.

The refrigerating compartment 57 is opened and closed by the revolving door 3 and the revolving door 4 on the right side. Further, the front surface opening of the vegetable compartment 58 is opened and closed by the drawer door 5, and a vegetable container (not shown) is integrally attached to the back side of the drawer door 5.

The front surface opening of the small freezer compartment 59 is opened and closed by the drawer door 6, and a frozen product storage container (not shown) is integrally attached to the back side of the drawer door 6.

Further, the front surface opening of the ice making chamber 60 is opened and closed by the drawer door 7, and an ice receiving container (not shown) is integrally attached to the back side of the drawer door 7.

The front surface opening of the freezer compartment 61 is opened and closed by the drawer door 8, and a frozen product storage container (not shown) is integrally attached to the back side of the drawer door 8.

The second partition wall 56 has a foamed styrene or a foamed amino group. A heat insulating material such as urethane is used to thermally insulate the vegetable compartment 58, the small freezer compartment 59, and the ice making compartment 60 having a large difference in storage temperature, and, for example, the first partition wall 55 includes a synthetic resin sheet material that separates the refrigerating chamber 57 having a storage temperature difference from the vegetable compartment 58.

Next, the heat insulating box 2 and the heat insulating walls 9 to 13 constituting the heat insulating box 2 will be described in detail. First, in FIGS. 1 to 4, the outer casing 14 constituting the overall outer shape of the heat insulating box 2 is divided, and has a left outer plate portion 14A to constitute a left outer surface, and a right outer plate portion 14B to constitute a right. The outer surface; the upper outer plate portion 14C constitutes the upper outer surface; the lower outer plate portion 14D constitutes the lower outer surface; and the rear outer plate portion 14E constitutes the rear outer surface.

Each of the outer plate portions includes a steel plate, and the left outer plate portion 14A and the right outer plate portion 14B have a bilaterally symmetrical shape.

The inner box 15 constituting the inner surface of the heat insulating box 2 is divided into a left inner panel portion 15A to constitute a left inner surface, a right inner panel portion 15B to constitute a right inner surface, and an upper inner panel portion 15C. The inner surface; the lower inner plate portion 15D constitutes a lower inner surface; and the rear inner plate portion 15E constitutes a rear inner surface.

Since the left inner plate portion 15A and the right inner plate portion 15B have a bilaterally symmetrical shape, the left inner plate portion 15A will be described. The left inner panel portion 15A that is a part of the inner box 15 includes shelf holding portions 40a, 40b, and 40c, rail mounting portions 41a and 41b, and partition wall supporting portions 42a and 42b, which will be described later, as protruding portions.

The shelf supporting portions 40a, 40b, 40c, the rail mounting portions 41a and 41b, and the partition wall supporting portions 42a and 42b include integrally formed integrally molded articles. Ia (in the right inner plate portion 15B, an integrally molded product Ib including a bilaterally symmetrical shape) is included.

As shown in Fig. 6, the upper inner plate portion 15C includes an integrally molded product Ic of a synthetic resin (for example, an olefin resin) integrally having an L-shaped portion 17 protruding into the refrigerator as a bent portion. .

As shown in FIG. 7, the lower inner plate portion 15D includes an integrally molded product Id of synthetic resin, and the integrally molded product Id integrally has a drainage receiving portion 18 as a bent portion.

These integrally molded products Ia, Ib, Ic, and Id are formed, for example, by injection molding. Alternatively, vacuum forming can also be employed.

The rear inner panel portion 15E includes a flat sheet member Sa made of synthetic resin. Further, the sheet member Sa can be produced by extrusion molding, calender molding, or the like without using a molding die having a special shape. Further, a flat sheet member which is a commercially available product can also be used.

As shown in FIG. 4, a vacuum heat insulating panel 16 is provided between the outer box 14 and the inner box 15, and the vacuum heat insulating panel 16 is divided, and has a left unit panel 16A and a right unit panel 16B as unit panels, respectively. The upper unit panel 16C (shown in FIG. 10), the lower unit panel (not shown), and the rear unit panel 16E.

Since the basic structure of each unit panel is the same, for example, the left unit panel 16A will be described.

As shown in FIGS. 8 and 9, the left unit panel 16A is configured such that the base material 19 is housed in the package 20, and the inside of the package 20 is sealed under reduced pressure by vacuum evacuation. A laminate of inorganic fibers such as glass wool is compression-hardened to form a plate.

The package body 20 is composed of a metal layer such as an aluminum vapor-deposited layer or an aluminum foil layer in order to obtain gas barrier properties. Each unit panel is also commonly referred to as a vacuum insulated panel.

As shown in FIG. 5, the left heat insulating wall 9 is a unit heat insulating wall in which the left unit panel 16A is disposed between the left outer plate portion 14A and the left inner plate portion 15A, and is adhered to by the adhesive.

Further, the front end portion of the outer box 14 and the inner box 15, for example, the front end portion of the left outer panel portion 14A of the left heat insulating wall 9 and the front end portion of the left inner panel portion 15A, as shown in Fig. 8, are made of a heat insulating material. The front end connecting member 21 made of synthetic resin is connected.

At this time, the front end portion of the left outer panel portion 14A and the front end portion of the left inner panel portion 15A protrude forward from the left unit panel 16A, and the front end portion of the left outer panel portion 14A is bent toward the inner side at a substantially right angle, and the bent front end portion The bent portion 14Aa is configured to prevent the heat of the outer casing 14 (the left outer plate portion 14A) from being transmitted to the storage chamber by the structure that does not enter the inside of the heat insulating box 2 (the storage chamber side).

The front end portion of the left inner plate portion 15A is fitted to the fitting portion 15Aa provided on one end side of the distal end connecting member 21, and the other end side of the distal end connecting member 21 is engaged with the bent portion 14Aa of the left outer plate portion 14A.

Further, a heat insulating material such as a soft tape 22 is inserted into the inner space portion formed by the front end of the left unit panel 16A, the inner surface of the front end portion of the left outer panel portion 14A, and the inner surface of the distal end connecting member 21. Alternatively, foamed styrene may be used instead of the flexible tape 22.

The right heat insulating wall 10 is also the same as the left heat insulating wall 9 (left and right symmetrical shape) Shaped).

Further, as shown in FIGS. 2 and 10, the upper heat insulating wall 11 is provided with the upper unit panel 16C between the upper inner plate portion 15C and the upper outer plate portion 14C, and the upper inner plate portion 15C and the upper portion are adhered by an adhesive. The unit panel 16C is configured by filling a cured foamed urethane 24 between the upper unit panel 16C and the upper outer panel portion 14C.

As described above, the upper inner plate portion 15C includes an integrally molded product Ic of synthetic resin integrally provided with an L-shaped portion 17 that protrudes into the refrigerator as a bent portion.

On the other hand, the upper outer plate portion 14C also has the L-shaped portion 17a as shown by the broken line in Fig. 2, and therefore the upper heat insulating wall 11 has a shape in which the rear portion protrudes downward as a whole, in other words, the rear portion is formed. There is a form of the concave portion 11a.

Further, the machine room 11b is constituted by the rear space portion of the concave portion 11a of the upper heat insulating wall 11, and a compressor or a condenser of a refrigeration cycle is disposed in the machine room 11b.

The machine room 11b is blocked by the machine room cover 11c of Fig. 3 .

Further, as shown in FIG. 10, the upper outer panel portion 14C is connected to the upper outer panel portion 14A and the right outer panel portion 14B of the left heat insulating wall 9 away from the upper surface of the upper unit panel 16C.

Further, the upper inner plate portion 15C has a connecting portion 15C1 (see also FIG. 6) on both side edges thereof, and the connecting portion 15C1 is used for the left inner plate portion 15A and the right inner plate portion which are the inner casing side walls. 15B is connected, and the front end portion of the connecting portion 15C1 is coupled to the left inner panel portion 15A by a connecting member (not shown).

The connection portion 15C1 on the left side will be described, but the connection portion on the right side has the same configuration (left-right symmetrical shape). As shown in FIG. 10, a rib 15C2 that protrudes upward is formed inside the front end portion of the connecting portion 15C1, and a soft band 23 is inserted between the rib 15C2 and the left inner plate portion 15A, for example. As a heat insulating material leakage preventing member.

Further, from the upper portion of the upper unit panel 16C to the inner corner portion, a heat insulating material such as foamed urethane 24 is filled and solidified, and the soft tape 23 prevents leakage when the foamed urethane 24 is filled.

Further, the lower heat insulating wall 12 is provided with a lower unit panel (not shown) between the lower outer plate portion 14D and the lower inner plate portion 15D, and is connected to the three by an adhesive to constitute a unit heat insulating wall. The lower heat insulating wall 12 may be configured by following the lower inner plate portion 15D and the lower unit panel, and filling the lower unit panel and the lower outer plate portion 14D with the cured foamed urethane. In the lower heat insulating wall 12, the lowermost portion of the drain receiving portion 18 communicates with the outside of the heat insulating box 2.

Further, the rear heat insulating wall 13 is also provided with a rear unit panel 16E between the rear outer panel portion 14E and the rear inner panel portion 15E, and is configured by the adhesive. In this case, a structure in which the foamed urethane is cured and filled may be appropriately added.

The end surface of the unit panel in the integrally molded article Ia, Ib, Ic, Id (the left inner plate portion 15A, the right inner plate portion 15B, the upper inner plate portion 15C, and the lower inner plate portion 15D) containing an olefin resin Yes: the surface is processed to become a rough surface, whereby the adhesion to the unit panel becomes good. Moreover, it contains Acrylonitrile Butadiene Styrene (Acrylonitrile Butadiene Styrene, The sheet member Sa (the rear inner panel portion 15E) of the ABS) resin has good adhesion to the unit panel.

The connection structure of the left heat insulating wall 9 and the rear heat insulating wall 13 will be described with reference to FIGS. 9 and 11 to 14 . Further, the connection structure between the right heat insulating wall 10 and the rear heat insulating wall 13 is such that the connection structure between the left heat insulating wall 9 and the rear heat insulating wall 13 is bilaterally symmetrical, and thus the description thereof is omitted.

The sheet member connecting portion 25 is integrally formed at the rear end portion of the left inner panel portion 15A of the left heat insulating wall 9, and the sheet member connecting portion 25 constitutes a sheet member connecting member, the sheet The material member connecting member is for connecting the left inner panel portion 15A of the left side heat insulating wall 9 and the rear inner panel portion 15E (sheet member Sa) of the rear side heat insulating wall 13.

The sheet member connecting portion 25 is attached to the rear side heat insulating wall 13 by a fixing member 26 as a protruding portion, and the fixing member 26 is composed of independent parts independent of the sheet member.

The fixing member 26 includes a synthetic resin such as an ABS resin, and has a rectangular shape slightly elongated as shown in FIGS. 11 to 14 and has flange-like portions 26a and 26a that protrude in the vertical direction. Further, a screw hole portion 26c is formed in the fixing member 26, and the screw hole portion 26c extends from one end surface to an intermediate portion in the direction toward the other end surface.

At the stage before assembling the rear side heat insulating wall 13, the fixing member 26 passes the other end surface of the fixing member 26 including the flange portions 26a, 26b, for example, directly through the adhesive, and then to the rear unit panel 16E.

Then, the fixing member 26 is formed in the slightly elongated rectangular hole portion 15u formed in the rear inner plate portion 15E (sheet member Sa) from the back side thereof The arrangement is inserted into the front side, and the rear unit panel 16E and the rear surface of the rear inner panel portion 15E (including the other end surface on the rear unit panel 16E side of the fixing member 26) are then passed through the adhesive.

The flange-like portions 26a and 26a are sandwiched by a rear inner panel portion 15E as a sheet member and a rear unit panel 16E as a vacuum heat insulating panel. Thereby, the fixing member 26 is attached to the rear side heat insulating wall 13 and protrudes into the inner box 15.

A portion where the fixing member 26 is disposed on the connecting portion 25 of the sheet member is formed with a boss fitting portion 25a along the shape of the fixing member 26.

The sheet member connecting portion 25 and the fixing member 26 are joined by a screw 26d in the boss portion fitting portion 25a.

The fixing member 26 is provided at the upper and lower end portions of the rear side heat insulating wall 13 (the left and right end portions of the rear inner panel portion 15E) at a plurality of upper and lower portions.

Further, in the back side space portion of the sheet member connecting portion 25, foamed styrene 28 and a soft tape 29 as a heat insulating material are inserted and disposed.

Further, the inner surface of the inner casing 15 (including the rear inner plate portion 15E of the sheet member Sa) in the rear heat insulating wall 13 is provided with a synthetic resin back cover attachment 37 as a protruding portion at an appropriate portion. The back cover mount 37 is composed of separate parts that are independent of the sheet members shown in FIGS. 1 and 2.

The back cover mount 37 is for mounting the back cover, and is mounted by the same mounting structure as the fixing member 26 for covering a duct disposed in the front portion of the rear side heat insulating wall 13.

Further, an evaporator 64 of a refrigerating cycle is disposed at a rear portion of the freezing chamber 61, and a drain receiving portion 18 is located below the evaporator 64 to evaporate The defrosting water or the like at the time of defrosting by the attachment frost of the device 64 is led out from the drain receiving portion 18 to the outside of the rear heat insulating wall 13.

Next, the configuration of the connecting portion between the beam member 52 and the left heat insulating wall 9 and the right heat insulating wall 10 will be described with reference to FIG. 15 . In Fig. 15, the connecting portion between the beam member 52 and the left heat insulating wall 9 is shown, but the structure of the connecting portion on the right heat insulating wall 10 is also bilaterally symmetrical and substantially identical.

The beam member 52 has a front surface partitioning plate 52a constituting a front surface portion, a reinforcing plate 52b, a back partitioning cover 52c, and a heat insulating material 52d. On the other hand, the left outer plate portion 14A of the left heat insulating wall 9 has a front surface portion 14A1, and its front end portion is folded back to form a folded portion 14A2.

The front surface partitioning plate 52a is sandwiched by the reinforcing plate 52b and the folded-back portion 14A2 of the left outer plate portion 14A. That is, the end portion of the front surface partitioning plate 52a abuts against the back side of the folded-back portion 14A2, and the end portion of the reinforcing plate 52b is inserted into the back side of the front surface portion 14A1 of the left outer plate portion 14A, passing through the front surface partitioning plate 52a. The screw 62 behind the end portion and the folded-back portion 14A2 is screwed into the screw hole of the reinforcing plate 52b, thereby sandwiching the front surface partitioning plate 52a.

Further, the front surface partitioning plate 52a and the reinforcing plate 52b are integrated by screws 63 in advance. A back partition cover 52c that houses the heat insulating material 52d is attached to the rear side of the front surface partitioning plate 52a. The left and right edge portions of the opening of the front surface of the heat insulating box 2 are joined by the front surface partitioning plate 52a, so that the left heat insulating wall 9 and the right heat insulating wall 10 are fixed, and the front of the heat insulating box 2 can be prevented. The opening of the surface is opened or reduced to maintain the storage compartment in a rectangular parallelepiped.

Further, if the strength of the front surface partitioning plate 52a is high, the reinforcing plate 52b may be omitted.

Further, although not shown, the back partition cover 52c has a mounting portion that protrudes downward, and the mounting portion is screwed by a fixing member similar to the fixing member 26.

The shelf supporting portions 40a, 40b, 40c are paired on the right and left side faces (the left inner plate portion 15A and the right inner plate portion 15B) of the inner box 15 to support a shelf (not shown).

The rail mounting portion 41a is for mounting a guide rail that can support the vegetable container integrated with the drawer door 5, and the rail mounting portion 41b is for mounting a guide rail that can be retractably supported and withdrawn from the door 8 The integrated frozen product storage container.

Further, the partition wall support portions 42a and 42b are for supporting the first partition wall 55 and the second partition wall 56, respectively.

The structure and reinforcing structure of the shelf supporting portions 40a, 40b, 40c, the rail mounting portions 41a and 41b, and the partition wall supporting portions 42a and 42b will be described.

The shelf supporting portions 40a, 40b, and 40c are different in length from the rail mounting portions 41a and 41b in the front-rear direction (the rail mounting portions 41a and 41b are longer), but the cross-sectional shape is the same, and the reinforcing structure is also the same. Therefore, the shelf supporting portion 40a is performed. Description.

As shown in FIG. 16 to FIG. 18, the shelf supporting portion 40a protrudes toward the inside of the refrigerator in the left inner panel portion 15A of the integrally molded product Ia, and a screw boss portion is formed on a part of the inner surface portion. 43. A screw hole portion 43a is formed in the screw boss portion 43.

And, in the inner surface portion of the shelf supporting portion 40a in the left inner panel portion 15A, A reinforcing plate 44 made of, for example, a metal plate as a reinforcing member is attached. That is, the reinforcing plate 44 is formed in a shape along the inner surface of the shelf supporting portion 40a, and has a boss fitting portion 44a, and a screw insertion hole portion 44b is formed in the boss fitting portion 44a.

The reinforcing plate 44 is abutted to the inner surface portion of the shelf supporting portion 40a, and the screw 45 that has passed through the screw insertion hole portion 44b is screwed into the screw hole portion 43a, thereby attaching the reinforcing plate 44 to the shelf supporting portion 40a. The surface is reinforced to the shelf support portion 40a.

Since the partition wall support portions 42a and 42b have the same configuration, the upper partition wall support portion 42a will be described. As shown in FIG. 19 and FIG. 20, the partition wall support portion 42a protrudes toward the inside of the refrigerator in the left inner panel portion 15A as the integrally molded product Ia, and a screw hole portion 42u is formed in the inner surface portion.

On the inner surface of the partition wall support portion 42a, a reinforcing plate 46 made of, for example, a metal plate is attached as a reinforcing member by screws 47, and the partition wall supporting portions 42a and 42b are reinforced by the reinforcing plate 46.

Further, the screwing of the reinforcing plates 44 and 46 may be performed as needed, or may be replaced by the subsequent fixing. In short, if the reinforcing plates 44 and 46 are provided between the left unit panel 16A and the left inner panel portion 15A (integral molded article), the shelf supporting portions 40a and 40b which are the protruding portions, respectively, are used by the reinforcing plates 44 and 46, 40c, the rail mounting portions 41a and 41b and the partition wall supporting portions 42a and 42b may be reinforced.

In the first embodiment, the inner box 15 of the heat insulating box 2 includes the shelf supporting portions 40a, 40b, and 40c, the rail mounting portions 41a and 41b, and the partition. The wall support portions 42a, 42b serve as projections that protrude into the refrigerator.

Further, the left inner plate portion 15A and the right inner plate portion 15B of the inner box 15 include an integrally molded product 1a in which these protruding portions are integrally formed.

According to this, since the protruding portion that protrudes into the refrigerator is integrally formed with the inner box 15, it is not necessary to manufacture the protruding portion as an independent component, and the number of man-hours is not required, and the number of man-hours can be reduced.

The inner case 15 is not limited to the case where the inner plate portions divided into a plurality of pieces described in the first embodiment are combined to form an inner case, and the inner case 15 may include one integrally molded product in which the protruding portions are integrally formed.

Further, according to the first embodiment, since the inner case 15 includes the inner plate portions 15A to 15E divided into a plurality of pieces, the inner case 15 includes the inner plate portion corresponding to the position of the protruding portion integrally including the outer case 15 The integral molded article may be used, and the size of the integrally molded article may be small, which contributes to a reduction in manufacturing cost.

Since the sheet member can be used for the inner panel portion which is not an integrally molded product, it is also possible to contribute to a reduction in manufacturing cost. At this time, the number of divisions of the inner panel portion can also be changed.

The outer casing 14 includes a plurality of divided outer plate portions, and in this case, includes a left outer plate portion 14A, a right outer plate portion 14B, an upper outer plate portion 14C, a lower outer plate portion 14D, and a rear outer plate portion 14E; the inner box 15 Similarly to the outer case 14, a plurality of divided inner plate portions are included. In this case, the left inner plate portion 15A, the right inner plate portion 15B, the upper inner plate portion 15C, the lower inner plate portion 15D, and the rear inner plate portion 15E are included. .

Among the plurality of inner plate portions, the left inner plate portion 15A, the right inner plate portion 15B, the upper inner plate portion 15C, and the lower inner plate portion 15D include integrally molded products Ia, Ib, and Ic. Id, in addition, the vacuum heat insulating panel 16 also includes a plurality of divided unit panels, and includes a left unit panel 16A, a right unit panel 16B, an upper unit panel 16C, a lower unit panel (not shown), and a rear unit panel. 16E.

The divided unit panels are disposed between the divided outer plate portions and the inner plate portion, and a plurality of left heat insulating walls 9 as a unit heat insulating wall, a right heat insulating wall 10, and an upper heat insulating layer are disposed. The wall 11, the lower heat insulating wall 12, and the rear heat insulating wall 13 are formed by connecting the heat insulating walls 9 to 13.

According to this, by assembling the heat insulating walls 9 to 13 including the unit panels each of which is a vacuum heat insulating panel, the heat insulating box 2 can be configured, and assembly is simple.

Conventionally, since the heat insulating box is configured by assembling the undivided outer box and the inner box, the size of the assembly is large and the assembly work is also large. However, in this embodiment, the assembly work is also easy.

In the first embodiment, the divided inner plate portion of the inner box 15 includes inner plate portions 15A and 15B including integrally molded products Ia and Ib, and the integrally molded products 1a and 1b are integrally formed with protruding portions. And an inner plate portion 15E including a flat sheet member Sa having a protruding portion of an independent component.

According to this, when the protruding portion of the individual component is provided, the inexpensive sheet member can be used as needed.

The inner plate portions 15C and 15D of the inner plate portions 15A to 15E of the inner casing 15 include integrally formed products Ic and Id, and the integrally molded products Ic and Id are integrally formed with L. Shape 17, drainage receiving part Since the bent portion such as 18 can be formed into a bent portion having a complicated shape at a time by the integrally molded product by the mold.

The integrally molded product Ic (the upper inner plate portion 15C) including the L-shaped portion 17 as the bent portion constitutes the top surface of the inner box 15, and the machine room 11b is provided on the back side of the L-shaped portion 17, so that it can be L The portion 17 forms a machine chamber 11b.

The upper inner plate portion 15C including the integrally molded product Ic including the L-shaped portion 17 has a connecting portion 15C1 at the side edge portion thereof, and the connecting portion 15C1 is used for the left inner plate portion 15A and the right inner plate as the inner casing side walls. Since the portion 15B is coupled, the connection member as an independent component is not required, and the number of parts or the number of assembly man-hours can be reduced.

The upper inner plate portion 15C including the integrally molded product Ic having the L-shaped portion 17 and the left inner plate portion 15A as the inner box side wall, and the upper inner plate portion 15C and the right inner plate portion 15B are filled as In the foamed urethane 24 of the heat insulating material, the rib 15C2 for arranging the heat insulating material leakage preventing member is formed in the vicinity of the inner tank side wall of the joint portion 15C1, so that the rib 15C2 and the left inner panel portion can be provided. Between 15A, between the rib 15C2 and the right inner plate portion 15B (the rib 15C2 on the right inner plate portion 15B side is not shown) is inserted into the flexible tape 23 as a heat insulating material leakage preventing member, thereby preventing the filling of the hair. Leakage when urethane 24 was bubbled.

In the first embodiment, the lower inner plate portion 15D which is an inner plate portion including the integrally molded product constitutes the bottom surface of the inner case 15, and the drain receiving portion 18 is formed as a bent portion at the rear portion of the lower inner plate portion 15D. The water receiving portion 18 having a complicated shape can be formed at one time.

Provided on the integrally molded products Ia and Ib: shelf support as a protruding portion Portions 40a, 40b, and 40c, rail mounting portions 41a and 41b, and partition wall supporting portions 42a and 42b. In the case of the integrally molded product, an olefin resin (polypropylene material or the like) having a slightly lower strength (less than ABS resin) is used in consideration of low material cost, but the strength can be compensated by reinforcing plates 44 and 46. insufficient.

<Second Embodiment>

21 to 25 show a second embodiment. In the second embodiment, the configuration of the left heat insulating wall 9' and the right heat insulating wall 10' is different from that of the first embodiment.

The differences will be described below. Since the left heat insulating wall 9' and the right heat insulating wall 10' have a bilaterally symmetrical shape, the left heat insulating wall 9' will be described.

As shown in FIG. 21 to FIG. 23, in the left heat insulating wall 9', the left inner panel portion 15A' is divided into the upper panel portion 15Aa and the lower panel portion as the inner panel portions, respectively, with respect to one unit panel 16A. 15Ab two parts.

The upper side plate portion 15Aa and the lower side plate portion 15Ab are vertically adjacent to each other. The upper side plate portion 15Aa is configured as an integrally molded product Ie by, for example, injection molding or vacuum forming. In the same manner as in the first embodiment, the upper side plate portion 15Aa integrally includes 40a, 40b, and 40c as protruding portions, and integrally has a sheet member connecting portion 25'.

The sheet member connecting portion 25' is located in the refrigerating chamber 57, but the sheet member connecting plate 25" located in the vegetable chamber 58, the small freezing chamber 59, the ice making chamber 60, and the freezing chamber 61 is independent of the upper side plate portion 15Aa. And separate components of the lower side plate portion 15Ab are provided.

Moreover, the lower side plate portion 15Ab includes a flat sheet member Sb, and The fixing member 26 similar to that of the first embodiment is provided, and the fixing member 26 is a protruding portion that is an independent component independent of the sheet member Sb. Further, on the lower side plate portion 15Ab, the rail attachments 33, 34 and the partition wall supports 35, 36 which are projections of the independent parts are attached.

The upper side plate portion 15Aa is located in the refrigerating chamber 57 to constitute the inner surface of the refrigerating chamber 57, and the lower side plate portion 15Ab is disposed across the vegetable compartment 58, the small freezing compartment 59, the ice making compartment 60, and the freezing compartment 61 to constitute the above-described The inner surface of each room. The first partition wall 55 is disposed at a boundary portion between the upper side plate portion 15Aa and the lower side plate portion 15Ab.

The rail mounting members 33 of the rail mounting members 33, 34 are located on both inner sides of the vegetable compartment 58, and the rail mounting members 34 are located on both inner sides of the freezing compartment 61. The two rail mounting members 33, 34 have the same structure, and therefore the rail mounting member 33 will be described with reference to FIG.

The rail mounting member 33 has a structure in which a rail mounting portion 33b is integrally protruded from a plate-like main body portion 33a, and a screw hole portion 33c as a fastening member engaging portion is formed on a back surface of the rail mounting member 33. A peripheral end portion of the opening of the screw hole portion 33c forms a disk-shaped counterbore 33d.

Further, a screw insertion hole portion 31 as a fastening member insertion hole portion is formed in a portion corresponding to the inner surface of the vegetable chamber 58 and the freezing chamber 61 in the lower side plate portion 15Ab. Further, before assembling the left heat insulating wall 9', the grub screw 32 as a fastening member is inserted into the through hole portion 31 from the back side of the lower side plate portion 15Ab, and screwed into the screw hole portion 33c of the rail mounting members 33, 34. Thereby, the rail mounting members 33, 34 are fixed to the inner surface of the left inner panel portion 15A, and the rail mounting members 33, 34 are protruded from the inner surface of the inner box 15 in the vegetable compartment 58.

In the process of gradually screwing into the flat head screw 32, the disk-shaped screw head portion 32a of the grub screw 32 is such that the screw insertion hole of the lower side plate portion 15Ab of the left inner plate portion 15A' which can be slightly deformed because it is a sheet member The peripheral portion of the portion 31 is dish-shaped (projecting toward the inside of the refrigerator) until it reaches the counterbore 33d. As a result, in the assembled state of the left heat insulating wall 9 shown in FIG. 25, the peripheral edge portion 31a of the screw insertion hole portion 31 is isolated from the left unit panel 16A, and the flat head screw 32 is not removed from the left inner panel portion. The back surface of the lower side plate portion 15Ab of 15A' protrudes in the direction of the left unit panel 16A.

In addition, the rail mounting member 33 is used for mounting a guide rail that can support the vegetable container integrated with the drawer door 5, and the rail mounting member 34 is used for mounting the rail, and the rail can be pulled out and supported. The frozen product storage container in which the door 8 is integrated.

The partition wall support 35 is for supporting the first partition wall 55, and the partition wall support 36 is for supporting the second partition wall 56. The partition wall supports 35, 36 are attached by the same mounting structure as the fixture 26 of the first embodiment.

In the second embodiment, the upper side plate portion 15Aa and the lower side plate portion 15Ab are provided adjacent to one unit panel 16A, and the upper side plate portion 15Aa is an inner plate portion including the integrally molded product Ie, and the lower side plate The portion 15Ab is an inner plate portion including a flat sheet member Sb, and the integrally molded product 1e is integrally formed with shelf supporting portions 40a, 40b, and 40c as protruding portions. Further, the same configuration is adopted for the inner panel portion corresponding to the other unit panel 16B.

According to this, even the left insulating wall 9 as a unit heat insulating wall passes through The inner plate portion includes an inner plate portion (upper plate portion 15Aa) including the integrally molded product Ie, and an inner plate portion (lower plate portion 15Ab) including the sheet member Sb, which can be used separately for one unit heat insulating wall. Partially integral molded articles and sheet members, resulting in increased design variations.

In the second embodiment, the upper side plate portion 15Aa constitutes the inner surface of the refrigerating chamber 57, and the lower side plate portion 15Ab constitutes the inner surface of the vegetable compartment 58, the small freezer compartment 59, the ice making compartment 60, and the freezing compartment 61. The upper side plate portion 15Aa is an inner plate portion including an integrally molded product 1e, and the lower side plate portion 15Ab is an inner plate portion including a flat sheet member Sb, and the integrally molded product 1e is integrally formed as a protruding portion. Shelf support portions 40a, 40b, 40c.

In other words, since the upper side plate portion 15Aa and the lower side plate portion 15Ab constitute different storage compartments, the inner surface of the storage compartment (refrigeration chamber 57) seen by the user can be constituted by the integrally molded product Ie having a good appearance of the protruding portion, and substantially no The other storage chamber surface viewed by the user may be constituted by a sheet member Sb in which a protruding portion to which an independent component is attached (the protruding contour may be conspicuous than the protruding portion of the integrally molded product). That is, an inexpensive sheet member can be used in a storage compartment that is difficult to be visually observed by a user.

Further, in the second embodiment, a configuration is adopted in which a boundary portion between the upper side plate portion 15Aa including the integrally molded product Ie and the lower side plate portion 15Ab including the sheet member Sb exists between the different storage compartments. The partition wall portion that is partitioned, that is, the first partition wall 55 is formed. According to this, the boundary portion between the upper side plate portion 15Aa and the lower side plate portion 15Ab can be covered by the first partition wall 55.

Further, the lower side plate portion 15Ab including the sheet member Sb is configured to be provided The inner surface of the storage compartment (vegetable compartment 58, small freezer 59, ice making compartment 60, freezer compartment 61) of the container is taken out. In other words, the storage compartment having the extraction container is such that it is difficult for the user's eyes to reach the storage compartment, and these are the inside of the vegetable compartment 58, the small freezer compartment 59, the ice making compartment 60, and the freezing compartment 61 which are the storage compartments which have the extraction container. The surface is composed of the lower side plate portion 15Ab including the sheet member Sb, and the sheet member can be effectively utilized for the necessary portion.

In the second embodiment, the inner surface of the storage compartment including the revolving doors 3 and 4, that is, the refrigerating compartment 57, is formed by the upper side plate portion 15Aa including the integrally molded product Ie. Therefore, the appearance of the inner surface of the refrigerating chamber 57 is good.

That is, the inner surface of the refrigerating chamber 57 is where the user's gaze arrives when the revolving doors 3, 4 are opened, and the gaze also reaches the shelf supporting portions 40a, 40b, 40c as the protruding portions. At this time, since the shelf supporting portions 40a, 40b, and 40c on the inner surface of the refrigerating chamber 57 are integrally molded products Ie formed by the mold, the shelf supporting portions 40a, 40b, and 40c are smoothly formed from the upper side plate portion 15Aa. The outstanding shape, good appearance, and good health impression.

<Third embodiment>

FIG. 26 and FIG. 27 show a third embodiment in which the elastically deformable fin portion 33e is formed in the peripheral edge portion of the main body portion 33a of the rail attachment 33 in the second embodiment. The fin portion 33e is inclined toward the inner surface side of the inner box 15 (the lower side plate portion 15Ab side in the drawing). Further, although not shown, the same fin portion 33e is formed also in the peripheral portion of the main body portion of the rail attachment 34.

The fin portion 33e is in close contact with the inner surface of the inner box 15 in the mounted state of the rail mounting member 33. By means of the fins 33e, it is possible to cover the inner surface of the inner box 15 and the rail mounting The gap between the pieces 33.

In other words, when the grub screw 32 is screwed into the screw hole portion 33c of the rail attachment 33, the peripheral edge portion 31a of the screw insertion hole portion 31 of the lower side plate portion 15Ab is deformed. Therefore, the screw insertion hole portion 31 may be partially Wrinkles are generated, whereby a gap is sometimes generated between the left inner panel portion 15A and the rail mounting member 33.

According to the third embodiment, the gap can be covered by the fin portion 33e.

<Fourth embodiment>

28 to 30 show a fourth embodiment in which the following aspects are different from the first embodiment. In other words, in the first embodiment, the left outer panel portion 14A, the lower outer panel portion 14D, and the right outer panel portion 14B are divided. However, in the present embodiment, the left outer panel portion 14A and the lower outer panel portion 14D are included. The outer plate portion 14Z continuous with the right outer plate portion 14B. Further, reference numeral 16D is a unit panel disposed between the inner surface of the lower outer plate portion 14D and the lower inner plate portion 15D.

As shown in the fourth embodiment, the outer casing 14 may not divide all the plate portions.

Further, in the third embodiment (FIGS. 26 and 27) described above, the fin portion 33e is provided on the rail attachment 33, and the gap between the inner surface of the inner box 15 and the rail mounting member 33 is covered by the fin portion 33e. However, it is also possible to make the gap inconspicuous by making the rail mount 33 itself transparent.

In addition, as long as the inner case includes the inner plate portion divided into a plurality of pieces, at least one of the inner plate portions may include an integrally molded product in which the protruding portion is integrally formed.

Further, the unit heat insulating wall may be at least two. For example, the left heat insulating wall 9 may be a single body, and the other heat insulating walls 10 to 13 may be integrally formed (the outer plate portion is continuously integrated, the inner plate portion is continuously integrated, and the unit panel is continuously integrated). .

As the unit heat insulating wall, a unit panel may be disposed between the inner panel portion and the outer panel portion, and the inner panel portion and one side of the unit panel may be attached, and the other side of the unit panel may be externally The plate portion is followed by a structure in which one side of the inner plate portion and the unit panel are attached, and a heat insulating material such as foamed urethane is interposed on the other surface of the unit panel. Between the outer panels.

It is also possible to adopt a configuration in which the outer box and the vacuum heat insulating panel are not divided, and only the inner box is divided into a plurality of inner panel portions and connected.

As described above, the refrigerator of the present embodiment includes: a heat insulating box including: an outer box, an inner box, and a vacuum heat insulating panel, wherein the vacuum heat insulating panel is disposed in the outer box and the inner box Between the inner case and the protruding portion protruding into the refrigerator, the inner box includes an inner plate portion divided into a plurality, and at least one of the inner plate portions includes an integral body integrally formed with the protruding portion Molded product.

According to this, it is possible to reduce the number of manufacturing man-hours.

The invention has been described in terms of several embodiments, which are intended to be illustrative and not restrictive. The present invention can be implemented in various other forms, and various omissions, substitutions and changes can be made without departing from the scope of the invention. These embodiments or variations thereof are included in the scope or spirit of the invention and are included in the claims. The invention described in the book is within the scope of the invention.

1‧‧‧ refrigerator

2‧‧‧Insulation box

3, 4‧‧‧ revolving door

3a, 3b, 4a, 4b‧‧‧ hinges

5~8‧‧‧Withdrawal door

9‧‧‧Left insulation wall (unit insulation wall)

9'‧‧‧Left insulation wall

10‧‧‧Right insulation wall (unit insulation wall)

10'‧‧‧Right insulation wall

11‧‧‧Upper insulation wall (unit insulation wall)

11a‧‧‧ concave

11b‧‧‧ machine room

11c‧‧‧Machine room cover

12‧‧‧Bottom insulation wall (unit insulation wall)

13‧‧‧Back side insulation wall (unit insulation wall)

14‧‧‧Outer box

14A‧‧‧ Left outer panel

14A1‧‧‧ front surface

14A2‧‧‧Return section

14Aa‧‧‧Bend

14B‧‧‧Right outer panel

14C‧‧‧Upper Board

14D‧‧‧ Lower outer board

14E‧‧‧After the outer board

14Z‧‧‧Outer Board Department

15‧‧‧ inner box

15A'‧‧‧Left inner panel

15A‧‧‧Left inner panel

15Aa‧‧‧Mate

15Ab‧‧‧ lower side plate

15B‧‧‧Right inner panel

15C‧‧‧Upper Board

15C1‧‧‧Connecting Department

15C2‧‧‧ rib

15D‧‧‧Under the inner plate

15E‧‧‧After the inner board

15u‧‧‧孔部

16‧‧‧Vacuum insulation panel

16A‧‧‧Left unit panel

16B‧‧‧Right unit panel

16C‧‧‧Upper unit panel

16D‧‧‧ lower unit panel

16E‧‧‧ rear unit panel

17‧‧‧L-shaped part (bending part)

17a‧‧‧L

18‧‧‧Drainage receiving department (bending part)

19‧‧‧Substrate

20‧‧‧ inclusion body

21‧‧‧ Front end connecting members

22, 23, 29‧ ‧ soft belt

24‧‧‧Foaming urethane

25‧‧‧Connecting parts for sheet members

25'‧‧‧Connected parts for sheet members

25"‧‧‧Links for sheet members

25a, 44a‧‧ ‧ boss fittings

26‧‧‧Fixed parts (protrusions of individual parts)

26a‧‧‧Flange

26c‧‧‧ Screw hole

26d, 45, 47, 62, 63‧‧‧ screws

28‧‧‧Foam styrene

31, 44b‧‧‧ Screw insertion hole

31a‧‧‧The Peripheral Department

32‧‧‧ flat head screws (fastening members)

32a‧‧‧ screw head

33, 34‧‧‧ rail mountings (protrusions of individual parts)

33a‧‧‧ Body Department

33b‧‧‧rail installation department

33c, 42u, 43a‧‧‧ screw holes

33d‧‧‧ countersink

33e‧‧‧Fin

35, 36‧‧‧ partition wall support (protrusion of independent parts)

37‧‧‧Back cover mounts (protrusions for individual parts)

40a~40c‧‧‧Shelf support (protrusion)

41a, 41b‧‧‧ rail mounting parts (protrusions)

42a, 42b‧‧‧ partition wall support (protrusion)

43‧‧‧ screw boss

44, 46‧‧‧ stiffeners (reinforcing members)

51, 52, 53‧ ‧ ‧ beam members

52a‧‧‧ divider

52b‧‧‧ Strengthening board

52c‧‧‧Back partition cover

52d‧‧‧Insulation materials

54‧‧‧longitudinal members

55‧‧‧1st dividing wall

56‧‧‧2nd dividing wall

57‧‧‧Refrigerator (storage room)

58‧‧‧ vegetable room (storage room)

59‧‧‧Small freezer (storage room)

60‧‧‧ ice making room (storage room)

61‧‧‧Freezer (storage room)

Ia, Ib, Ic, Id‧‧‧ integral molded goods

Sa, Sb, Sc‧‧‧ sheet components

Fig. 1 is a perspective view of the heat insulating box of the refrigerator according to the first embodiment as seen from below.

Fig. 2 is a perspective view of the heat insulating box as seen from above.

Fig. 3 is a perspective view of the refrigerator as seen from above.

Figure 4 is a cross-sectional plan view of the heat insulating box.

Fig. 5 is an exploded perspective view of the left heat insulating wall.

Fig. 6 is a perspective view of the upper inner panel as seen from below.

Fig. 7 is a perspective view of the lower inner plate portion as seen from above.

Fig. 8 is an enlarged view of a portion K of Fig. 4.

Figure 9 is a cross-sectional plan view showing a corner portion of the left heat insulating wall and the rear heat insulating wall.

Fig. 10 is a longitudinal sectional front view showing a corner portion of the left heat insulating wall and the upper heat insulating wall.

Figure 11 is an exploded perspective view of the fixing member and the rear inner panel portion.

Fig. 12 is a perspective view showing a state in which the fixing member is attached to the rear inner panel portion.

Fig. 13 is a longitudinal sectional side view showing a state in which the fixing member is attached to the rear inner panel portion.

FIG. 14 is a vertical cross-sectional side view showing a state in which a web member connecting plate is attached to a fixing member.

Fig. 15 is a cross-sectional plan view showing a connecting portion of the beam member and the left heat insulating wall.

Fig. 16 is a longitudinal sectional side view showing a mounted state of the shelf support.

Fig. 17 is a longitudinal sectional side view showing a mounted state of the shelf support member in a different cross section from Fig. 16;

Figure 18 is an exploded longitudinal sectional side view of the shelf support, the left inner panel, and the screw.

Fig. 19 is a longitudinal sectional side view showing a partition wall support portion.

Figure 20 is a perspective view of a partition wall support portion.

Fig. 21 is a perspective view of the heat insulating box of the refrigerator according to the second embodiment as seen from below.

Fig. 22 is a perspective view of the heat insulating box as seen from above.

Fig. 23 is an exploded perspective view of the left heat insulating wall.

Figure 24 is a longitudinal sectional side view showing the rail mounting portion in an exploded state.

Figure 25 is a longitudinal sectional side view of the rail mounting portion.

Fig. 26 is a longitudinal sectional side view showing a portion of a rail attachment member in a third embodiment;

Figure 27 is a longitudinal sectional side view showing the rail mounting portion in an exploded state.

Fig. 28 is a longitudinal sectional front view showing a part of the heat insulating box, showing a fourth embodiment;

Fig. 29 is a longitudinal sectional front view showing a part of the heat insulating box.

Fig. 30 is a longitudinal sectional front view showing a part of the heat insulating box in an exploded state.

2‧‧‧Insulation box

9‧‧‧Left insulation wall

10‧‧‧Right insulation wall

13‧‧‧Back side insulation wall

14‧‧‧Outer box

14A‧‧‧ Left outer panel

14B‧‧‧Right outer panel

14E‧‧‧After the outer board

15‧‧‧ inner box

15A‧‧‧Left inner panel

15B‧‧‧Right inner panel

15E‧‧‧After the inner board

16‧‧‧Vacuum insulation panel

16A‧‧‧Left unit panel

16B‧‧‧Right unit panel

16E‧‧‧ rear unit panel

21‧‧‧ Front end connecting members

22, 29‧‧‧soft belt

25‧‧‧Connecting parts for sheet members

28‧‧‧Foam styrene

Ia, Ib‧‧‧ integral molded product

K‧‧‧ Section

Sa‧‧‧Sheet components

Claims (10)

A refrigerator includes a heat insulating box, the heat insulating box includes: an outer box, an inner box and a vacuum heat insulating panel, wherein the vacuum heat insulating panel is disposed in a space between the outer box and the inner box, The refrigerator is characterized in that the inner box includes: a protruding portion that protrudes into the refrigerator, the inner box includes: an inner panel portion that is divided into a plurality of, and at least one inner panel portion of the plurality of inner panel portions includes An integrally formed product in which the protruding portion is integrally formed, the outer casing includes a plurality of divided outer plate portions, and further, the vacuum heat insulating panel also includes a plurality of divided unit panels, and the divided portions are The divided unit panels are disposed between the outer plate portion and the inner plate portion to constitute a plurality of unit heat insulating walls, and the heat insulating box body is configured by connecting the plurality of unit heat insulating walls. The divided inner plate portion of the inner box includes: an inner plate portion including an integrally molded product, the integrally molded product integrally formed with a protruding portion; and an inner plate portion including a flat sheet member, the flat plate portion The material member is provided with a protrusion of a separate part, and the heat insulation box is The unit heat insulating wall including the inner plate portion of the integrally molded product in which the protruding portion is integrally formed, and the flat plate including the protruding portion of the independent component are disposed to be grounded The unit heat insulating wall of the inner panel portion of the material member. The refrigerator according to claim 1, wherein the inner plate portion including the integrally molded product and the sheet member including the flat plate member are provided The inner plate portion constitutes an inner surface of a different storage chamber, and the integrally formed product is integrally formed with the protruding portion. The refrigerator according to the second aspect of the invention, wherein the inner plate portion including the integrally molded product and the inner plate portion including the flat plate member are disposed between the different storage chambers. A partition wall portion in which the integrally formed product is integrally formed. The refrigerator according to claim 3, wherein the inner plate portion including the flat sheet member is configured to include an inner surface of a storage chamber in which the container is taken out. The refrigerator according to the third aspect of the invention, wherein the inner plate portion including the integrally molded product constitutes an inner surface of a storage chamber including a revolving door, and the integrally molded product integrally forms the protruding portion. The refrigerator according to the first aspect of the invention, wherein the inner panel portion of the inner box includes an inner panel portion including an integrally molded product, and the integrally molded product is integrally formed with a bent portion. The refrigerator according to claim 6, wherein the inner plate portion including the integrally molded product constitutes a top surface of the inner box, and a machine chamber is formed on a back side of the bent portion, the integrally formed product The bent portion is provided. The refrigerator according to claim 7, wherein the inner plate portion including the integrally molded product is at a side edge portion of the inner plate portion A coupling portion for coupling to the side wall of the inner box is provided, and the integrally molded product includes the bent portion. The refrigerator according to claim 8, wherein a heat insulating material is filled between an inner plate portion including the integrally molded product and a side wall of the inner casing, and a portion of the inner casing side wall in the joint portion A rib for arranging a heat insulating material leakage preventing member is provided, and the integrally molded product includes the bent portion. The refrigerator according to claim 6, wherein an inner plate portion including the integrally molded product constitutes a bottom surface of the inner box, and a drain receiving portion is formed as a bent portion at a rear portion of the inner plate portion. The integrally molded product includes the bent portion.