Refrigerator

Abstract

To provide a refrigerator in which a dew-proofing pipe is installed beforehand in an inner box, and dew condensation on an opening part is therefore suppressed, in particular a variation in the dew condensation suppression performance of a partition part is reduced.SOLUTION: The refrigerator comprises a heat insulation box body in the front face of which an opening part is provided and inside which a storage chamber is provided. The heat insulation box body includes the inner box as the storage chamber, an outer box, heat insulation material, the partition part partitioning the storage chamber into a plurality of rooms, a front face plate forming the front face of the partition part, and a dew-proofing pipe suppressing dew condensation on the opening part. In the state that the front face plate is fixed beforehand to the dew-proofing pipe, the dew-proofing pipe is arranged in the inner box and the partition part.SELECTED DRAWING: Figure 10

Description

[Technical Field]

[0001] The present invention relates to a refrigerator. [Background technology]

[0002] Patent Document 1 discloses a refrigerator equipped with a door switch (reed switch) on the refrigerator's partition wall that detects whether the door is open or closed. A molded insulation material is placed behind the door switch of this refrigerator, and the molded insulation material is configured to cover the entire width of the refrigerator so that the urethane foamed in place in the partition wall does not infiltrate the area where the door switch is located. Therefore, the front of the partition wall is not filled with urethane. A dew prevention pipe is also provided that presses against the partition wall to prevent condensation on the partition wall, and hinges that hold the door are fixed to the partition wall with tools such as screws. As a result, the hinge is fixed to the partition wall, and the dew prevention pipe is pressed and formed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-101804 Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a refrigerator that suppresses condensation at openings by installing anti-condensation pipes in advance in an inner box, and in particular reduces variation in the condensation suppression performance of anti-condensation pipes in partitions. [Means for solving the problem]

[0005] The refrigerator of the present disclosure comprises an insulated box body having an opening on the front and a storage compartment inside, the insulated box body comprising an inner box which serves as the storage compartment, an outer box, insulating material, a partition section which divides the storage compartment into multiple compartments, a front panel which forms the front of the partition section, and a dew-proof pipe which suppresses condensation at the opening, with the front panel fixed to the dew-proof pipe in advance, and the dew-proof pipe being placed on the inner box and the partition section. [Effects of the Invention]

[0006] The refrigerator according to the present disclosure can reduce variations in the placement of the anti-condensation pipes installed on the front panel of the partition, thereby suppressing condensation. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view of a refrigerator according to an embodiment of the present disclosure; [Figure 2] Exploded perspective view of a refrigerator [Figure 3] A perspective view showing the partition portion [Figure 4] A perspective view of the main part showing the partition part [Figure 5] Plan view of the partition before installing the base switch [Figure 6] Plan view of the partition after installing the base switch [Figure 7] Exploded view of the partition door switch [Figure 8] Vertical cross section of the door switch in the partition [Figure 9] A vertical cross-sectional view showing a partition filled with heat insulating material. [Figure 10] Perspective view of the front panel fixed to the dew prevention pipe [Figure 11] A perspective view of the inner box with the anti-condensation pipe installed [Figure 12] Cross-sectional view of the main part of Figure 10 DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, embodiments will be described in detail with reference to the drawings. However, unnecessary detailed description may be omitted. For example, detailed description of well-known matters or redundant description of substantially the same configuration may be omitted. This is to avoid unnecessary redundancy in the following description and to facilitate understanding by those skilled in the art.

[0009] The accompanying drawings and the following description are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0010] (Embodiment) Hereinafter, an embodiment will be described with reference to Figures 1 to 9. In each figure, the symbol X indicates the front of the refrigerator 1 and the insulated box 10 in the installed state, the symbol Z indicates the top of the refrigerator 1, and the symbol Y indicates the left of the refrigerator 1 and the insulated box 10. In the following description, each direction is along the direction of the refrigerator 1.

[0011] [1-1.Configuration] [1-1-1. Refrigerator configuration] FIG. 1 is a perspective view of a refrigerator 1 in an installed state according to an embodiment of the present disclosure.

[0012] As shown in Figure 1, refrigerator 1 has an insulated box body 10 with an opening 20 on the front and multiple doors attached to insulated box body 10, including, from top to bottom, refrigerator compartment door 11, ice maker compartment door 12, switchable compartment door 13, vegetable compartment door 14, and freezer compartment door 15, and a freezer that forms a refrigeration cycle.

[0013] The insulated box body 10 is a box-shaped member that has thermal insulation properties and forms the main body of the refrigerator 1. The insulated box body 10 includes an outer box 16 that opens at the front, an inner box 17 that is housed inside the outer box 16 and also opens at the front, and a heat insulating material 18 that is provided in a space S1 between the outer box 16 and the inner box 17.

[0014] The outer box 16 is formed from, for example, a metal plate such as iron or a hard resin such as ABS.

[0015] In the refrigerator 1 of this embodiment, the outer box 16 is formed by connecting the sides, top, bottom, and back of the outer box 16 together, each of which is made of separate steel plates.

[0016] A hinge member 19 is provided on the top surface of the outer box 16 at the upper end side of the refrigerator compartment door 11 to pivotally support the refrigerator compartment door 11.

[0017] Furthermore, an injection hole (not shown) for injecting the heat insulating material 18 is provided on the rear surface of the outer box 16.

[0018] Fig. 2 is an exploded perspective view of the refrigerator 1. In Fig. 2, the doors 11 to 15 are omitted.

[0019] The inner box 17 is made of a hard resin such as ABS.

[0020] In the insulated box 10, an opening provided in the inner box 17 functions as an opening 20 of the insulated box 10. The space inside the inner box 17 is cooled by a refrigeration cycle and functions as a storage chamber 21 in which predetermined items can be stored at a predetermined temperature.

[0021] This storage compartment 21 is divided into a plurality of spaces in the vertical direction by partitions 22, 23, and 24. In refrigerator 1, the spaces divided by partitions 22, 23, and 24 function as, from top to bottom, refrigeration compartment 25, ice-making compartment 26, switchable compartment 27, vegetable compartment 28, and freezer compartment 29, in that order.

[0022] Refrigerator compartment 25 is set to a refrigerating temperature range where stored items will not freeze for refrigerated storage. Ice-making compartment 26 produces ice and is set to a temperature suitable for storing the produced ice. Switchable compartment 27 is set to a temperature switchable from a slightly freezing temperature of, for example, -3°C to a freezing temperature of approximately -18°C, and vegetable compartment 28 is set to a temperature range slightly higher than that of refrigerator compartment 25 as a temperature suitable for storing vegetables. Freezer compartment 29 is set to a freezing temperature range for frozen storage.

[0023] As described above, the opening 20 of the heat-insulating box 10 is closed by the doors 11 to 15 provided on the front of each storage compartment. These doors 11 to 15 are all heat-insulating doors that have heat-insulating members inside.

[0024] In the refrigerator 1, the opening of the inner box 17 located in the refrigerator compartment 25 is closed by a refrigerator compartment door 11. The refrigerator compartment door 11 is a hinged door that can be opened and closed by rotating on upper and lower hinges 19.

[0025] In refrigerator 1, the openings of inner box 17 located in ice making compartment 26, switchable compartment 27, vegetable compartment 28, and freezer compartment 29 are closed by drawer doors 12, 13, 14, and 15, respectively.

[0026] A filler, namely, a heat insulating material 18, is provided between the outer box 16 and the inner box 17. In this embodiment, a rigid urethane foam is used as the heat insulating material 18. The rigid urethane foam can be easily foamed, is self-adhesive to various materials, and has high heat insulating properties.

[0027] In the refrigerator 1, a space S1 between the outer box 16 and the inner box 17 is filled with a rigid urethane foam as a heat insulating material 18, and the rigid urethane foam is self-adhesive to the outer box 16 and the inner box 17.

[0028] However, the refrigerator 1 is not limited to this, and any insulating material may be used as long as it is a heat insulating fillable material.

[0029] A machine chamber 30 is provided at a corner formed by the top and back surfaces of the insulating box body 10 by protruding and recessing it toward the storage chamber 15. The machine chamber 30 is a space that houses a refrigerator that forms a refrigeration cycle.

[0030] The freezer is composed of, for example, a compressor, an evaporator, a condenser, a capillary tube, heat dissipation, and an anti-condensation pipe 31 for preventing condensation. These devices are connected in a circular fashion by refrigerant piping to form a refrigeration cycle. In refrigerator 1, the refrigerant compressed by the compressor circulates through the refrigeration cycle, thereby cooling storage compartment 21.

[0031] In this embodiment, the machine room 30 accommodates a compressor, refrigerant piping connected to the compressor, and the like.

[0032] As described above, the dew prevention pipe 31 is a tubular member that forms part of the refrigeration cycle. The dew prevention pipe 31 is routed and arranged in the space S1 between the outer box 16 and the inner box 17 so as to be thermally coupled to the inner surface of the outer box 16 and each surface of the inner box 17 that forms the opening 20.

[0033] The refrigerant that has undergone heat exchange mainly in the condenser flows through the dew-proof pipe 31. The dew-proof pipe 31 uses this refrigerant to heat the outer surface of the outer casing 16 and the area around the opening 20, thereby suppressing the occurrence of condensation due to the temperature difference between the storage chamber 21 and the outside air temperature. The refrigerant that has flowed through the dew-proof pipe 31 is introduced into the evaporator.

[0034] The outer box 16 may be an outer box formed by folding a single outer plate to form both sides and a top surface, or an outer box assembled by connecting a plurality of outer plates.

[0035] [1-1-2. Configuration of the partition] The partition 23 is formed in the shape of a flat plate having a predetermined thickness in the vertical direction of the insulating box 10. The partition 23 extends in the left-right direction of the opening of the inner box 17, i.e., along the left-right direction of the opening 20, and both ends are connected to a pair of side walls 32 arranged on both sides of the opening 20. The pair of side walls 32 form the side surfaces of the inner box 17.

[0036] The partition 23 has a predetermined width dimension along the front-rear direction of the insulating box 10. In this embodiment, the partition 23 is formed with a width dimension that allows the insulating box 10 to have a predetermined strength.

[0037] In the storage chamber 21, an insulating plate 33 is placed behind the partition 23 when the insulating material 18 of the insulating box body 10 is foamed. The insulating plate 33 is formed of a box-shaped member made of a hard resin such as ABS, which houses an insulating material such as expanded polystyrene or a vacuum insulating material inside, and when the insulating material 18 is filled into the insulating box body 10, the insulating material 18 is filled around the outer periphery of the insulating plate 33 and fixed.

[0038] Each edge of the heat insulating plate 33 is attached in a state of contact with a rear wall 34 forming the back surface of the inner box 17 , the pair of side walls 32 , and the back surface of the partition portion 23 .

[0039] That is, storage compartment 21 is divided by partition 23 and heat insulating plate 33 into ice making compartment 26 (switchable compartment 27) and vegetable compartment 28.

[0040] Similarly, refrigerator compartment 25 is divided by partition 22 and heat insulating plate 34 into refrigerator compartment 25 and ice making compartment 26 (switchable compartment).

[0041] Thus, by dividing storage compartment 21 using heat insulating plates 33, 34, it is possible to form refrigerator compartment 25, ice making compartment 26 (switchable compartment 27), and vegetable compartment 28 so that their volumes are equal to or greater than a predetermined amount.

[0042] Partition section 23 is formed in a box shape with an internal space S2. Partition section 23 includes an upper plate 35 that forms the upper surface of partition section 23, a lower plate 36 that forms the lower surface of partition section 23, and a front plate 37 that forms the front surface of partition section 23.

[0043] As shown in FIG. 2, a plurality of screw holes 38 for fixing the lower hinge 19 are provided at both ends of the front plate 37.

[0044] In addition, front panel 37 is an approximately U-shaped front panel that integrally forms the front of partition section 22 that separates refrigerator compartment 25, ice-making compartment 26, and switchable compartment 27 vertically and horizontally, and partition section 23 that separates ice-making compartment 26, switchable compartment 27, and vegetable compartment 28, which are arranged horizontally.

[0045] Door switch 40, which detects whether the drawer storage compartment door is open or closed, is located on roughly E-shaped front panel 37. Specifically, door switch 41 for ice-making compartment door 12 and door switch 42 for selector compartment 27 are located on front panel 37. A magnet is held on ice-making compartment door 12 at a position opposite door switch 41, which is made up of a circuit board unitized with a Hall IC built into ice-making compartment door 12.

[0046] A door switch 42 for the selectable compartment door 13, which is configured in the same manner as above, is housed in the front panel 37. A door switch 43 for the freezer compartment door 15 is housed in the front panel 50 of the partition 24 located below the front panel 37.

[0047] 3 is a perspective view showing the partition section 23. In FIG. 3, the front panel 42 is omitted.

[0048] As shown in FIG. 3, both ends of the partition 23 in the left-right direction of the heat-insulating box 10 are open.

[0049] As described above, both ends of the partition 23 are connected to a pair of side walls 32 of the inner box 17. A side wall opening 39 is provided in each side wall 32 at the location where both ends of the partition 23 are connected. Each side wall opening 39 is a through-hole in the inner box 17 and communicates with space S1. In other words, each side wall opening 39 communicates between space S1 and space S2.

[0050] 4 is a perspective view showing the partition section 23. In FIG. 4, the front panel 42 is omitted.

[0051] The upper plate 35 and the lower plate 36 are arranged at a predetermined distance from each other along the vertical direction of the insulating box 10, and both ends of each are connected to the pair of side walls 32.

[0052] As shown in Figure 4, a base switch 44 that houses a door switch 41 that detects the opening and closing of ice making compartment door 12 and a base switch 45 that houses a door switch 42 that detects the opening and closing of switching compartment door 13 are fixed inside partition section 23.

[0053] 4 to 6 disclose the configuration of the base switch 44. A support portion 46 is formed in the partition portion 23, and engaging portions 44a are formed on both ends of the rear wall of the base switch 44, which are fixed by engaging with the support portion 46. An insertion hole 44b is formed in one side wall of the base switch 44, into which electrical wiring is inserted.

[0054] Figure 7 shows the configuration before the door switch 41 is attached to the partition 23. The base switch 44 is fixed to a predetermined position on the partition 23 as shown in Figures 4 to 6, and the front panel 37 is fitted into the partition 23. The front panel 37 has an opening 37a, and when the front panel 37 is fitted into the partition 23 from the front, the opening 37a overlaps the position of the base switch 44 and is fixed.

[0055] The dew-proof pipe 31 that constitutes the refrigeration cycle is fixed to the front panel 37 in advance, and when the front panel 37 is fixed to the partition, the dew-proof pipe 31 is supported by a pipe support part 44c that is integrally formed with the base switch 44. A flexible foam 47 is interposed between the dew-proof pipe 31 and the pipe support part 44c, and the dew-proof pipe 31 is held while being pressed against the front panel 37 by the pipe support part 44c, thereby reducing uneven contact of the dew-proof pipe 31 with the front panel 37 and suppressing condensation on the front panel 37. The flexible foam 47 also prevents damage to the dew-proof pipe 31 and prevents urethane from entering the storage part 44d of the base switch 44.

[0056] Door switch 41 is inserted and fixed in storage portion 44d of base switch 44, thereby forming door switch 41 that detects whether ice-making compartment door 12 is open or closed.

[0057] The filled heat insulating material also fills the space S2, preventing the heat insulating material 18 from entering the inside of the base switch 44, and also filling the space S2 up to the outer periphery of the base switch 44 and the rear surface of the pipe support portion 44c.

[0058] In the partition section 23 where the base switch 44 is not arranged, the back surface of the front panel 37 and the outer periphery of the dew prevention pipe 31 are filled with the heat insulating material 18.

[0059] In addition, the upper panel 35 and lower panel 36 of the partition section 23 are connected by a plurality of connecting parts 48, and the part where the base switch 44 is not placed has a notched shape that holds the dew prevention pipe 31 in the connecting part 48, thereby backing up the dew prevention pipe 31.

[0060] Figure 10 is a perspective view of front panels 37, 50 fixed to dew prevention pipe 31 in advance. In particular, front panel 37 is made of metal and is integrally formed in a roughly V-shape, forming the edge of the front opening of ice-making compartment 26 and switch compartment 27. Figure 12 is a cross-sectional view of a main part of front panel 37, which has a roughly U-shaped cross section. Dew prevention pipe 31 is located at upper corner 37b, which forms the front and top surfaces of front panel 37, and at lower corner 37c, which forms the front and bottom surfaces, and is fixed to front panel 37 with aluminum tape 49 attached from the top to the front and bottom surfaces of front panel 37.

[0061] 11 is a cross-sectional view of the dew prevention pipe 31, to which the front plates 37 and 50 of FIG. 10 have been previously fixed with aluminum tape 49, placed on the front flange of the inner box 17. FIG.

[0062] Therefore, the dew prevention pipe 31 can be reliably fixed to the front panels 37, 50 with the aluminum tape 49, thereby reducing quality variations and suppressing dew condensation.

[0063] In this state, the outer box 16 is placed on the outside of the inner box 17, and the space S1 is filled with a heat insulating material 18, thereby forming the heat insulating box body 10.

[0064] The dew prevention pipe 31 is backed up by the pipe support portion 44c of the base switch 44 and the soft foam 47, and is supported in a direction pressing against the front panels 37, 50.

[0065] Furthermore, the heat insulating material 18 filled in the space S2 extends from the outer periphery of the base switch 44 toward the front panel 37, reaching up to the pipe support portion 44c, so that the dew prevention pipe 31 can be more reliably fixed in close contact with the front panel 37.

[0066] [1-2. Effect] The operation of the refrigerator 1 configured as above will be described below.

[0067] As described above, in refrigerator 1, refrigeration compartment 25, ice-making compartment 26, switchable compartment 27, vegetable compartment 28, and freezer compartment 29 are cooled to their respective predetermined temperature ranges by the refrigeration cycle.

[0068] In this case, there is a risk that condensation will occur on the outer surface of the refrigerator 1 due to the temperature difference between the outside air temperature of the refrigerator 1 and the temperature of the storage compartment 21.

[0069] For this reason, in the refrigerator 1, dew-proof pipes 31 are provided in the space between the outer box 16 and the inner box 17. The dew-proof pipes 31 are thermally coupled to the inner surface of the outer box 16 and the surfaces of the inner box 17 that form the opening 20. Each part of the refrigerator 1 is heated by the refrigerant flowing through the dew-proof pipes 31, thereby suppressing the occurrence of condensation.

[0070] When assembling refrigerator 1, insulating material 18 is injected into refrigerator 1 through an injection hole from the back surface of outer box 16. The injected insulating material 18 foams and fills space S1 between outer box 16 and inner box 17, and self-adheres to outer box 16 and inner box 17. Space S1 also communicates with space S2 via sidewall opening 39. Therefore, the injected insulating material 18 fills space S2.

[0071] Fig. 8 is a vertical cross-sectional view showing the partition 23 filled with the heat insulating material 18. Fig. 8 shows a cross section parallel to the center line of the heat insulating box 10 in the left-right direction and passing through the door switch 40 in a plan view of the heat insulating box 10.

[0072] As shown in FIG. 8, the heat insulating material 18 filled in the space S2 flows between the support portions 44 onto the rear surface side of the front panel 37, and covers the entire side surface of the dew prevention pipe 31.

[0073] The dew-proof pipe 31 is fixed in advance with aluminum tape 49 to a metal front panel 37 that is roughly E-shaped and a metal front panel 50 that is roughly I-shaped, and is then installed in a pipe groove formed in the front opening flange of the inner box 17.The front panels 37 and 50 to which the dew-proof pipe 31 is fixed are positioned so as to block the front openings of the partition sections 22, 23, and 24, and with the outer box 16 assembled, the insulating material 18 is injected into the foaming jig and fills the spaces S2 and S1.

[0074] As a result, urethane is filled in a state in which the dew prevention pipes 31 are fixed evenly in predetermined positions on the front panels 37, 50, reducing individual variations in dew prevention performance, and further, the pipe support parts 44c of the base switch 44 press and hold the dew prevention pipes 31 toward the front panels 37, 50 from behind the front panels 37, 50 via the soft foam 47, thereby preventing movement of the dew prevention pipes 31 when the heat insulating material 18 is filled, and heat emitted from the dew prevention pipes 31 is more efficiently conducted to the front panel 37. Thus, in the refrigerator 1, the front panel 37 is more efficiently heated and dew condensation is suppressed.

[0075] In addition, the soft foam 47 prevents urethane from entering the storage portion 44d of the base switch 44, and further prevents the dew prevention pipe 31 from being damaged.

[0076] [1-3. Effects, etc.] As described above, in this embodiment, the refrigerator comprises an insulated box 10 having an opening 20 on the front and a storage chamber 21 provided inside, the insulated box 10 comprising an inner box 17 which forms the storage chamber 21, an outer box 16, a thermal insulating material 18, partition sections 22, 23, 24 which divide the storage chamber 21 into a plurality of compartments, front panels 37, 50 which form the front faces of the partition sections, and a dew-proof pipe 31 which suppresses condensation at the opening 20, and the front panels 37, 50 are fixed to the dew-proof pipe 31 in advance, and the dew-proof pipe 31 is arranged on the inner box 17 and the partition sections 22, 23, 24.

[0077] This prevents variations in the connection between the dew prevention pipe 31 and the front panels 37, 50 and fixes them, thereby reducing variations in the dew prevention performance.

[0078] The dew prevention pipe 31 is fixed to the front panels 37 and 50 with aluminum tape 49, so that thermal conductivity to the partitions 22, 23 and 24 can be maintained.

[0079] The front panels 37, 50 are formed integrally with an upper surface, front surface, and lower surface that have an approximately C-shaped cross section, and dew-proof pipes 31 are arranged at the upper corner 37b formed by the upper surface and front surface, and at the lower corner 37c formed by the lower surface and front surface, and aluminum tape 49 is fixed as a single piece from the upper surface through the front surface to the lower surface, so that heat from the dew-proof pipes can be efficiently conducted to the front panel.

[0080] The partitions 22, 23, 24 are provided with a base switch 44 for holding the door switch 41, and the dew prevention pipe 31 is held by the base switch 44, which further functions as a backup for the dew prevention pipe 31, thereby improving dew prevention.

[0081] The outer box 16 is configured by connecting a plurality of outer plates, and the plurality of outer plates are assembled so as to face each surface of the inner box 17 with the dew prevention pipe 31 arranged on the flange of the inner box 17, so that interference of the dew prevention pipe 31 with the outer plates is reduced and the refrigerator can be smoothly assembled in the manufacturing process.

[0082] (Other embodiments) As described above, the embodiments have been described as examples of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to these, and can be applied to embodiments in which modifications, combinations, substitutions, additions, omissions, etc. are made. [Industrial Applicability]

[0083] As described above, the refrigerator according to the present invention can be suitably used as a refrigerator that provides a backup function for the dew-proof pipe in the base switch, suppresses the intrusion of urethane into the base switch, and improves assembly efficiency. [Explanation of symbols]

[0084] 1 refrigerator 10 Insulated box 16 outer box 17 Inner box 18. Insulation 22, 23, 23 Partition 31 Dew prevention pipe 37, 50 front plate 41, 42, 43 Door switch 44, 45 Base Switch 44c Pipe support 44d Storage area 47 Soft Foam

Claims

1. The device includes a heat-insulating box having an opening on the front and a storage chamber inside, The heat-insulating box includes an inner box that serves as the storage chamber, an outer box, a heat insulating material, a partition that divides the storage chamber into a plurality of chambers, a front panel that forms the front surface of the partition, and a dew-proof pipe that suppresses dew condensation at the opening, The refrigerator is characterized in that the dew prevention pipe is disposed in the inner box and the partition section with the front panel fixed to the dew prevention pipe in advance.

2. 2. The refrigerator according to claim 1, wherein the dew prevention pipe is fixed to the front panel with aluminum tape.

3. The refrigerator according to claim 2, wherein the front panel is integrally formed with an upper surface portion, a front surface portion, and a lower surface portion so as to have a substantially U-shaped cross section, the dew-proof pipes are arranged at an upper corner portion formed by the upper surface portion and the front surface portion, and a lower corner portion formed by the lower surface portion and the front surface portion, and the aluminum tape is fixed as a single piece from the upper surface portion through the front surface portion to the lower surface portion.

4. 4. The refrigerator according to claim 3, wherein the partition section is provided with a base switch for holding a door switch, and the dew prevention pipe is held by the base switch.

5. 5. The refrigerator according to claim 1, wherein the outer box is formed by connecting a plurality of outer panels.

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