CN106871538B

CN106871538B - Refrigerator with a door

Info

Publication number: CN106871538B
Application number: CN201710073244.6A
Authority: CN
Inventors: 及川诚; 佐伯友康
Original assignee: Toshiba Lifestyle Products and Services Corp
Current assignee: Toshiba Lifestyle Products and Services Corp
Priority date: 2011-06-14
Filing date: 2012-05-11
Publication date: 2020-07-21
Anticipated expiration: 2032-05-11
Also published as: EP2722624A1; JP2013002679A; CN106871538A; TW201319495A; CN103733007B; EP2722624A4; EP2722624B1; CN103733007A; WO2012172896A1; JP5755040B2; TWI477728B

Abstract

Provided is a refrigerator which has excellent heat insulation performance and can fully ensure the space in the refrigerator. The refrigerator is provided with a heat insulation box body (12) and an electric wire (52) or a pipe (53). The heat insulation box body (12) is formed into a box shape, and has a housing space on the inner side of the box shape. The heat insulating wall constituting the heat insulating box body (12) is configured by sandwiching a first heat insulating member (15) having a shape-fixing property between an outer plate (13) and an inner plate (14), or by sandwiching the first heat insulating member between the outer plate and the inner plate and filling a fillable second heat insulating member (151). The electric wire (52) or the piping (53) is provided in the housing space.

Description

Refrigerator with a door

The patent application is a divisional application of patent application with application number 201280037089.8, application date 2012, 5-month and 11-day, and invention name "refrigerator".

Technical Field

Embodiments of the present invention relate to a refrigerator.

Background

In recent years, in order to increase the capacity of the space inside the refrigerator, it is required to thin the heat insulating wall of the heat insulating box body. Therefore, as the heat insulating member of the heat insulating wall, a vacuum heat insulating panel is considered. The vacuum heat insulation panel is superior to a conventional urethane foam in heat insulation performance, and therefore, the heat insulation wall can be made thin, and as a result, the space in the box can be increased in volume.

In the conventional structure using the urethane foam as the heat insulating member, for example, a pipe constituting the refrigeration cycle and/or an electric wire connected to an electric component in the box are located inside the heat insulating wall and embedded in the urethane foam.

However, when a vacuum insulation panel is used as the insulation member, since the vacuum insulation panel has a shape-fixing property, if pipes and/or wires are to be arranged in the insulation wall so as to avoid the vacuum insulation panel, the insulation wall itself needs to be thickened. In this case, a reduction in the space in the tank results.

Documents of the prior art

Patent document

Patent document 1 Japanese patent application laid-open No. 4-260780

Disclosure of Invention

Problems to be solved by the invention

Therefore, a refrigerator having excellent heat insulation performance and capable of sufficiently securing an in-box space is provided.

Means for solving the problems

The refrigerator of the embodiment is provided with a heat insulation box body and electric wires or pipes. The heat insulation box body is formed into a box shape, and an accommodating space is arranged on the inner side of the box shape. The heat insulating wall constituting the heat insulating box body is configured by sandwiching a first heat insulating member having a shape-fixing property between an outer panel and an inner panel, or is configured by sandwiching the first heat insulating member between the outer panel and the inner panel and filling a second heat insulating member capable of filling. The electric wire or the pipe is provided in the housing space.

Drawings

Fig. 1 is a perspective view showing a heat insulation box body and a fixture of a refrigerator according to a first embodiment.

Fig. 2 is a perspective view showing an external appearance of the refrigerator.

Fig. 3 is a perspective view showing the inside of the refrigerator as viewed from the front right.

Fig. 4 is a perspective view showing the inside of the refrigerator as viewed from the front left.

FIG. 5 is a longitudinal sectional side view of the heat insulating box body.

Fig. 6 is a cross-sectional plan view schematically showing the refrigerating chamber inside the heat insulating box.

Fig. 7 is an exploded perspective view of the heat insulating wall.

Fig. 8 is a cross-sectional plan view schematically showing a right portion of the heat insulation box on the front surface side.

Fig. 9 is a cross-sectional plan view schematically showing corner portions on the left and rear sides of the heat insulation box body.

Fig. 10 is a perspective view showing an installation state of the fixing tool provided at a corner portion on the left and rear sides of the heat insulation box body.

FIG. 11 is a perspective view showing a state before the fixing tool is attached to the corner portion on the left and rear sides of the heat insulating box body.

FIG. 12 is a perspective view of a fixture provided at a corner portion on the left and rear sides of the heat insulation box body.

FIG. 13 is a front view of the fixture installed at the corner portion on the left and rear sides of the heat insulating box body.

Fig. 14 is an exploded perspective view of a fixture provided at a corner portion on the left and rear sides of the heat insulation box body.

Fig. 15 is a sectional view taken along line a-a of fig. 13.

Fig. 16 is a sectional view taken along line B-B of fig. 13.

Fig. 17 is a sectional view taken along line C-C of fig. 13.

Fig. 18 is a sectional view taken along line D-D of fig. 13.

Fig. 19 is a sectional view taken along line E-E of fig. 13.

Fig. 20 is a cross-sectional plan view (1) showing a mounted state of the fixing tool provided at the corner portion on the left and rear sides of the heat insulating box body.

Fig. 21 is a cross-sectional plan view (2) showing a mounted state of the fixing tool provided at the corner portion on the left and rear sides of the heat insulating box body.

Fig. 22 is a cross-sectional plan view schematically showing a corner portion on the right inner side of the heat insulation box body.

Fig. 23 is a perspective view showing an installation state of a fixture provided at a corner portion on the right rear side of the heat insulation box body.

FIG. 24 is a perspective view showing a state before the fixing tool is attached to the corner portion on the right rear side of the heat insulating box body.

Fig. 25 is a perspective view of a fixture provided at a corner portion on the right rear side of the heat insulation box body.

FIG. 26 is a front view of the fixture provided at a corner portion on the right inner side of the heat insulating box body.

Fig. 27 is an exploded perspective view of a fixture provided at a corner portion on the right rear side of the heat insulation box body.

Fig. 28 is a sectional view taken along line F-F of fig. 26.

Fig. 29 is a sectional view taken along line G-G of fig. 26.

Fig. 30 is a sectional view taken along line H-H of fig. 26.

Fig. 31 is a sectional view taken along line I-I of fig. 26.

Fig. 32 is a vertical front view showing the vicinity of the right end of the second partition member.

Fig. 33 is a perspective view showing a state in which a fixture is attached to the left heat insulating wall.

Fig. 34 is a view corresponding to fig. 9 showing a fixture according to a second embodiment.

Fig. 35 corresponds to fig. 22 and shows a heat insulating member according to a third embodiment.

Detailed Description

The following describes a refrigerator according to various embodiments with reference to the drawings. In addition, substantially the same constituent portions are given the same reference numerals in the respective embodiments, and the description thereof will be omitted.

(first embodiment)

The first embodiment will be described below with reference to fig. 1 to 33.

The refrigerator 11 includes a heat insulation box 12 shown in fig. 2 and a refrigeration cycle, not shown, for cooling the inside of the heat insulation box 12. The heat insulating box 12 is formed in a box shape with one surface opened as shown in fig. 3 to 6. In the present specification, the opening side of the heat insulating box 12 is defined as the front side of the refrigerator 11, and the left-right direction on the paper of fig. 2 is defined as the left-right direction of the refrigerator 11.

The heat insulating box 12 is configured as a box having an outer box 13, an inner box 14, and a first heat insulating member 15 by combining a plurality of divided heat insulating walls 31. The first heat insulating member 15 is provided between the outer box 13 and the inner box 14 as shown in fig. 5. The first heat insulating member 15 is a plate-shaped heat insulating member and has a shape-fixing property. That is, the first heat insulating member 15 is configured to be not deformable unless subjected to some kind of processing

A storage space such as a storage room and/or a space where a duct is installed as necessary, for example, are formed inside the inner box 14. The outer box 13 is made of, for example, stainless steel, and is formed in a box shape with an open front. The outer box 13 constitutes an outer surface of the heat insulation box 12. The outer box 13 is configured by combining a plurality of divided outer plates as shown in fig. 1 and 3 to 6. Specifically, the outer box 13 includes an upper outer panel 16, a bottom outer panel 17, a right outer panel 18, a left outer panel 19, and a back outer panel 20.

The upper outer panel 16 constitutes an upper outer side surface of the heat insulation box 12. The upper outer panel 16 is formed in a stepped shape with the rear portion located lower than the front portion. The bottom outer panel 17 constitutes a bottom outer surface of the heat insulation box 12, and is formed in a substantially flat plate shape parallel to the upper outer panel 16. The right outer panel 18 and the left outer panel 19 are formed in a substantially flat plate shape and constitute right and left outer side surfaces of the heat insulation box 12. The right outer plate 18 and the left outer plate 19 are formed in bilateral symmetry. The back outer panel 20 is formed in a substantially flat plate shape and is provided on the back of the heat insulation box 12. The back outer panel 20 constitutes a back outer side surface of the heat insulation box 12.

As shown in fig. 3 to 5, a machine room 21 is formed on the upper side of the rear portion of the upper outer panel 16. The machine chamber 21 is provided with a compressor and the like constituting a refrigeration cycle, not shown. As shown in fig. 5, an upper separation portion 211 is formed at a position corresponding to the bottom surface of the machine chamber 21. The upper separation portion 211 is an opening formed by providing a gap between the adjacent first heat insulating members 15. In the present embodiment, the upper separation portion 211 is formed by disposing the first heat insulating member 15 located above the heat insulating box body 12 and the first heat insulating member 15 located on the rear side so as to be separated from each other.

A second heat insulating member 151 is provided in the upper separating portion 211. The second heat insulating member 151 is a foam heat insulating material other than a vacuum heat insulating panel such as urethane foam. The second heat insulating member 151 has fluidity at the time of manufacturing the heat insulating wall 31, and can be filled in the heat insulating wall 31. The second heat insulating member 151, when filled into the heat insulating wall 31, exhibits heat insulating performance after foaming and curing. The upper separation portion 211 has a communication hole 211a extending in the up-down direction. The communication hole 211a is formed to penetrate the second heat insulating member 151 and the upper inner panel 22 in the vertical direction. In addition, the communication hole 211a may be a slit.

A component housing chamber 212 is formed at the lower rear side of the heat insulating box body 12. The component storage chamber 212 stores therein, for example, a condenser of a refrigeration cycle and/or components used for controlling refrigeration and freezing. A lower separation portion 213 is formed at a position corresponding to the component storage chamber 212. The lower separation portion 213 is formed by disposing the first heat insulating member 15 located on the bottom side of the heat insulating box 12 separately from the first heat insulating member 15 located on the rear side. A second heat insulating member 151 that can be filled is also provided in the lower separating portion 213. The lower separator 213 has a communication hole extending in the vertical direction, although not shown in detail. The communication hole is formed to penetrate the second heat insulating member 151 and the bottom inner plate 23 in the vertical direction. In addition, the communication hole may be a slit

The inner case 14 is made of resin and is formed in a box shape with an open front side. The inner box 14 is provided inside the outer box 13 and constitutes an inner surface of the heat insulation box 12. As shown in fig. 1 and 3 to 6, the inner box 14 is formed by combining a plurality of divided inner plates. Specifically, the inner box 14 includes an upper inner panel 22, a bottom inner panel 23, a right inner panel 24, a left inner panel 25, and a back inner panel 26. The upper inner panel 22 constitutes an upper inner side surface of the heat insulation box body 12. The upper inner panel 22 is formed in a stepped shape such that the rear portion is located lower than the front portion, similarly to the upper outer panel 16. The bottom inner panel 23 constitutes the bottom inner surface of the heat insulation box 12, and is formed in a substantially flat plate shape parallel to the upper inner panel 22. The right inner panel 24 and the left inner panel 25 are formed in a substantially flat plate shape, and constitute right and left inner surfaces of the heat insulation box 12. In this case, the right inner panel 24 and the left inner panel 25 are formed to be bilaterally symmetrical. The back inner panel 26 is formed in a substantially flat plate shape and is provided on the back of the heat insulation box 12. The rear inner panel 26 constitutes the rear inner side of the heat insulation box 12.

As shown in fig. 1, 11, and 24, a plurality of support members 27 are provided on the right inner plate 24, the left inner plate 25, and the back inner plate 26, respectively. The plurality of support members 27 are positioned on the right inner plate 24, the left inner plate 25, and the back inner plate 26, and are arranged in the vertical direction. The support member 27 is made of, for example, resin, and is configured mainly of a rectangular parallelepiped block as shown in fig. 20 and 21. The support member 27 has a threaded hole 271 and a flange portion 272.

The support member 27 protrudes toward the storage compartment side through an opening 28 formed in the

inner plates

24, 25, 26. The screw holes 271 are formed from the storage compartment side toward the

inner panels

24, 25, and 26. A female screw is formed inside the screw hole 271. The flange portion 272 is formed in a plate shape larger than the main body of the support member 27, and is provided on the opposite side of the storage chamber from the

inner plates

24, 25, 26. The flange portion 272 serving as the base end portion of the support member 27 is bonded and fixed to the first heat insulating member 15, and is sandwiched and fixed between the first heat insulating member 15 and the

inner plates

24, 25, and 26. In this case, the flange portion 272 functions as a retaining member that prevents the support member 27 from falling off from the opening portion 28 toward the storage compartment. The support member 27 may be integrated with the

inner plates

24, 25, and 26. The support member 27 may be configured such that the base end portion of the support member 27 is bonded to the first heat insulating member 15 without the flange portion 272.

As shown in fig. 5 and 6, the upper outer panel 16 and the upper inner panel 22, the bottom outer panel 17 and the bottom inner panel 23, the right outer panel 18 and the right inner panel 24, the left outer panel 19 and the left inner panel 25, and the back outer panel 20 and the back inner panel 26 are opposed to each other with the first heat insulating member 15 interposed therebetween. That is, the first heat insulating member 15 is provided between the outer case 13 and the inner case 14 so as to correspond to each wall surface.

The first heat insulating member 15 is a member having a lower thermal conductivity than a foam heat insulating material such as polyurethane and/or a soft tape (soft tape) and excellent heat insulating performance, and is, for example, a flat vacuum heat insulating panel. The first heat insulating member 15 includes a core member and an outer bag body accommodating the core member, although not shown in detail. The core material is formed by placing a laminate of inorganic fibers such as glass fiber (glass wool) or the like, which is a material having high heat insulation properties, in an inner bag of synthetic resin film such as polyethylene, for example, and then compressing and hardening the laminate into a rectangular plate shape. The core material may be formed by, for example, a papermaking method, a heating and compressing method, or the like.

The outer bag body is formed in a bag shape from a film of polytetrafluoroethylene, a film of high-density polyethylene, an aluminum vapor-deposited film, a film obtained by laminating aluminum foil sheets, and the like in an appropriate combination. The outer bag body has air tightness. The first heat insulating member 15 is configured by decompressing the inside of the outer bag in a state where the core member is housed in the outer bag, and sealing the opening of the outer bag by heat sealing or the like while maintaining the decompressed state.

One surface of the first heat insulating member 15 is bonded to the outer surface of the inner box 14, i.e., the outer panel, and the other surface is bonded to the inner surface of the outer box 13, i.e., the inner panel. In this way, the first heat insulating members 15 provided inside the walls constituting the heat insulating box 12 abut against the outer panels 16 to 20 and the inner panels 22 to 26, respectively. As shown in fig. 7, the first insulating member 15 is sandwiched between the left outer panel 19 and a left inner panel 25 opposed to the left outer panel 19 at a left side portion of the insulation box body 12. The first heat insulating member 15 and the left outer panel 19 are bonded by an adhesive 29. The first heat insulating member 15 and the left inner panel 25 are bonded together by an adhesive 30. The

adhesives

29 and 30 are, for example, liquid adhesives or double-sided tapes. In addition, the support member 27 is bonded to the first heat insulating member 15 by an adhesive 30.

Thus, the plurality of heat insulating walls 31 include outer plates 16 to 20, inner plates 22 to 26 facing the outer plates 16 to 20, and first heat insulating members 15 corresponding to the outer plates 16 to 20 and the inner plates 22 to 26. The heat insulating box 12 is formed by combining the plurality of heat insulating walls 31. The heat insulating wall 31 may be referred to as a divided heat insulating panel. The heat insulating walls 31 include 5 heat insulating walls 31, i.e., an upper heat insulating wall 311, a lower heat insulating wall 312, a right heat insulating wall 313, a left heat insulating wall 314, and a rear heat insulating wall 315.

The upper heat-insulating wall 311 constitutes an upper wall of the heat-insulating box 12, the bottom heat-insulating wall 312 constitutes a bottom wall of the heat-insulating box 12, the right heat-insulating wall 313 constitutes a right wall of the heat-insulating box 12, the left heat-insulating wall 314 constitutes a left wall of the heat-insulating box 12, and the back heat-insulating wall 315 constitutes a back wall of the heat-insulating box 12. In this case, the right heat insulating wall 313 and the left heat insulating wall 314 are arranged to be bilaterally symmetrical and face each other.

Here, the front end portions of the right and left heat insulating walls 313 and 314 forming the left and right walls of the heat insulating box body 12 will be described with reference to fig. 3, 4, and 8. The right heat insulating wall 313 and the left heat insulating wall 314 are formed symmetrically. Therefore, the explanation of the left side heat insulating wall 314 will be omitted by the explanation of the right side heat insulating wall 313. As shown in fig. 3 and 4, the right heat insulating wall 313 includes bent portions 32 at 2 locations in the vicinity of the central portion and the lower portion in the vertical direction at the distal end portion. Since the 2-part bent portions 32 have the same configuration, the bent portion 32 provided at the center in the vertical direction of the distal end portion of the right heat insulating wall 313 will be described.

The bent portion 32 is formed in the following shape as shown in fig. 8: the front end portion of the right outer panel 18 is bent leftward, and then folded back rightward and outward of the outer box 13 in front of the right inner panel 24 of the inner box 14. That is, the bent portion 32 has 2 flat portions 321 extending in the left-right direction and a bent portion 322 connecting the 2 flat portions 321. The 2 flat portions 321 are substantially opposed to each other and located in front of the first heat insulating member 15. The bent portion 322 is folded back and bent approximately 180 °, and is formed in a U shape that is open to the right outer side of the outer box 13 when viewed from above. The bent portion 322 is provided in front of the right inner panel 24 and at a position substantially overlapping the right inner panel 24 in the left-right direction. In this case, the distal end of the flat portion 321 is bent so as not to be located outside the heat insulation box 12.

An opening 33 is formed between the bent portion 322 and the front end portion of the right inner panel 24. In addition, an end insertion chamber 34 is formed between the bent portion 32 and the front end portion of the first insulating member 15. The opening 33 is formed by separating the front end portion of the right inner plate 24 from the bent portion 32 of the right outer plate 18, and functions as an inlet of the end insertion chamber 34. The end insertion chamber 34 is a space formed by separating the bent portion 32 of the right outer plate 18 from the first insulating member 15. Further, the 2 flat portions 321 are formed with through holes 35 penetrating in the plate thickness direction.

As shown in fig. 3 and 4, the heat insulating box 12 includes a first partition member 37 and a second partition member 38 inside the inner box 14. The first partition member 37 is provided at a vertically central portion inside the inner box 14. The second partition member 38 is disposed below the first partition member 37. These first partition member 37 and second partition member 38 partition the inside of the inner box 14 in the vertical direction. Thus, the storage compartment formed inside the inner box 14 is divided into a plurality of compartments.

Specifically, refrigerator 11 includes refrigerating compartment 39, vegetable compartment 40, ice making compartment 41, first freezing compartment 42, and second freezing compartment 43 as storage compartments. The refrigerating chamber 39 is provided in a space surrounded by the inner box 14 and the first partition member 37. The vegetable compartment 40 is provided in a space surrounded by the inner box 14, the first partition member 37, and the second partition member 38. The ice making compartment 41, the first freezing compartment 42, and the second freezing compartment 43 are provided in a space of a lower portion of the inner box 14 surrounded by the inner box 14 and the second partition member 38. In this case, the ice making compartment 41 is provided on the lower left side of the second partition member 38, and the second freezing compartment 43 is provided on the right side adjacent to the ice making compartment 41. The first freezer compartment 42 is provided below the ice making compartment 41 and the second freezer compartment 43.

The refrigerator 11 includes a refrigerating compartment door 391, a vegetable compartment door 401, an ice-making compartment door 411, a first freezing compartment door 421, and a second freezing compartment door 431 as shown in fig. 2. The refrigerating chamber door 391 is rotatably provided at a front opening of the refrigerating chamber 39. The vegetable compartment door 401 is drawer-type and is provided at a front opening portion of the vegetable compartment 40. Also, the ice making compartment door 411, the first freezing compartment door 421 and the second freezing compartment door 431 are of a drawer type and are provided at front opening portions of the ice making compartment 41, the first freezing compartment 42 and the second freezing compartment 43, respectively.

Next, the first partition member 37 and the second partition member 38 will be described. Since the first partition member 37 and the second partition member 38 have substantially the same configuration in appearance, the description will be given with reference to fig. 8 with the first partition member 37 as a representative. Since the first partition member 37 has a bilaterally symmetrical shape, the right-hand structure will be described.

The first partition member 37 includes a front partition 44 and a face partition 45. The front partition 44 is provided on the front opening side of the heat insulating box 12, and is configured in a rectangular parallelepiped shape extending in the left-right direction. The front partition 44 includes a partition plate 441, a partition reinforcement plate 442, a partition cover 443, and a partition heat insulating member 444. The partition plate 441 is a metal plate member and constitutes a front wall of the front partition 44. The left and right ends of the partition plate 441 are bent slightly rearward. The left and right ends of the partition plate 441 are inserted into the end insertion chambers 34 through the openings 33 formed at the front ends of the left and right heat insulating walls 313 and 314, respectively. Through holes 445 are formed at 3 locations in the right end portion of the front partition 44.

The partition reinforcement plate 442 is a metal plate and is formed in a plate shape along the rear surface of the partition plate 441. The vertical dimension of the partition reinforcement plate 442 is set to be equal to or shorter than the vertical dimension of the partition plate 441. The dimension of the partition reinforcement plate 442 in the left-right direction is set longer than the dimension of the partition plate 441 in the left-right direction. The partition reinforcing plate 442 has a plate thickness equal to or equal to that of the partition plate 441. The partition reinforcing plate 442 is bent rearward at both right and left ends thereof, and is provided so as to be in contact with the rear surface, which is the rear surface of the partition plate 441. The partition reinforcing plate 442 is provided in the case where the partition plate 441 has a small tensile strength or the like. The right end of the partition plate 441 is inserted into the chamber 34 at the end of the right heat-insulating wall 313, and is sandwiched between the right end of the partition reinforcing plate 442 and the bent portion 32 of the right outer plate 18. The same is true for the left end of the partition plate 441. The front surface of the partition plate 441 is configured such that the front surfaces of the bent portions 32 are located on the same plane.

The right end portion of the partition reinforcing plate 442 is bent in the form of L in cross section at a position on the right side of the partition plate 441, that is, the right end portion of the partition plate 441 is bent rearward along the shape of the corner of the right front portion of the right outer plate 18, as is the case with the left end portion of the partition plate 441, the partition reinforcing plate 442 has a 3-position screw hole 446 at the right end portion, a female screw is formed inside the screw hole 446, the 3-position screw hole 446 corresponds to each through hole 445 formed in the partition plate 441, a screw 46 is provided in the screw hole 446 located on the rightmost side among the 3 positions, the screw 46 is inserted through the through hole 35 of the right outer plate 18 and the through hole 445 of the partition plate 441, a screw 47 is provided in the remaining 2-position screw hole 446 of the partition reinforcing plate 442, the screw 47 is inserted through the through hole 445 of the partition plate 441, and the right end portion of the partition reinforcing plate 442 is thereby fastened and fixed.

Although not shown in detail, the left end of the partition plate 441 and the left end of the partition reinforcing plate 442 are also configured in the same manner as the right end described above. That is, the left end of the partition plate 441 and the left end of the partition reinforcement plate 442 are connected and fixed to the left heat insulating wall 314, that is, a bent portion, not shown, of the left outer panel 19. In this case, the partition plate 441 functions as a coupling member that couples and fixes the right heat-insulating wall 313 and the left heat-insulating wall 314 to the front opening side of the heat-insulating box body 12. The bent portion 32 functions as a member to be connected.

The partition cover 443 is made of metal and formed in a horizontally long box shape with a front side open. The partition cover 443 constitutes the rectangular parallelepiped outer peripheral wall of the front partition 44 together with the partition plate 441. The partition shield 443 is supported by the support member 27. In this case, the partition cover 443 has a mounting portion, not shown, at a lower portion thereof, and the mounting portion is fixed to the support member 27 by a screw, not shown. In a rectangular parallelepiped space formed by the partition cover 443 and the partition plate 441, a partition heat insulating member 444 is provided. The partition heat insulating member 444 includes a heat insulating member such as styrofoam and/or urethane, and is formed in a rectangular parallelepiped shape.

As shown in fig. 3 and 4, the surface partition portion 45 is formed of a resin member into a rectangular plate shape as a whole. The surface partition portion 45 of the second partition member 38 of the first partition member 37 and the second partition member 38 has a heat insulating member such as a vacuum heat insulating panel therein. Thereby, the surface partition portion 45 of the second partition member 38 has heat insulation properties. The surface partition 45 is placed on and held by the support member 27. The front end portion of the front partition portion 44 is in contact with the rear surface of the front partition portion 45, and the right and left end portions are in contact with the right inner panel 24 and the left inner panel 25.

As shown in fig. 4, the first partition member 37 is provided with a gap between the rear end portion of the face partition portion 45 and the back inner panel 26. Thereby, the refrigerating chamber 39 communicates with the vegetable chamber 40. On the other hand, the second partition member 38 is provided so that the rear end portion of the face partition portion 45 contacts the back inner panel 26. Thus, the refrigerating compartment 39 and the vegetable compartment 40 are insulated from the ice making compartment 41, the first freezing compartment 42, and the second freezing compartment 43.

As shown in fig. 1 and 3 to 6, the heat insulating wall 31 is connected and fixed to another adjacent heat insulating wall 31 via a fixture 51. In this case, the fixtures 51 are provided at the following corner portions of the inner box 14: a corner portion formed by the upper inner plate 22 and the right inner plate 24; a corner portion formed by the upper inner plate 22 and the left inner plate 25; a corner portion formed by the upper inner panel 22 and the back inner panel 26; a corner portion formed by the bottom inner plate 23 and the right inner plate 24; a corner portion formed by the bottom inner plate 23 and the left inner plate 25; and a corner portion formed by the bottom inner panel 23 and the back inner panel 26. In other words, the fixture 51 is fixed in a position opposed to the adjacent and separated 2 first heat insulating members 15.

As shown in fig. 6 and 9, the electric wires 52 are disposed at one corner portion of the rear portion of the inner box 14, for example, at a corner portion on the left inner side formed by the left inner panel 25 and the rear inner panel 26. The electric wire 52 extends along the corner portion. The electric wire 52 is not shown in detail, but is an electric wire for supplying electric power and signals for connecting the blower fan and/or various sensors to the control device. The electric wire 52 is arranged by bundling a plurality of electric wires. In the drawing, a plurality of electric wires 52 are bundled to have a circular cross section.

In the other corner portion of the rear portion of the inner box 14, that is, a corner portion different from the corner portion where the electric wire 52 is provided, that is, a corner portion on the right rear side formed by the left inner plate 25 and the rear inner plate 26, as shown in fig. 6 and 22, a pipe 53 is disposed. The pipe 53 extends along the corner. The pipe 53 is a suction pipe or the like connecting an evaporator for refrigeration and freezing, not shown, to the compressor. In this case, 2 pipes 53 are provided in parallel, and one pipe 53 is used for the flow of the refrigerant for refrigeration and the other pipe 53 is used for the flow of the refrigerant for freezing.

Here, the pipe 53 is connected to a cooler for refrigeration and freezing. The electric wire 52 is connected to an unillustrated blower fan. The air supply fan supplies and circulates the cold air generated by the evaporator to the storage chamber. The blower fan is preferably disposed between the left and right fixtures 51 in the storage compartment. In this case, although not shown in detail, a pipe for circulating cold air is provided between the left and right fixtures 51. The tube is preferably as thin as the thickness of the anchor 51 in the front-rear direction or thinner than the anchor 51.

Since the fixtures 51 provided at the respective corners of the inner box 14 have a similar configuration, the fixtures 511 provided at the corners formed by the left inner plate 25 and the back inner plate 26 and the fixtures 512 provided at the corners formed by the right inner plate 24 and the back inner plate 26 will be described below. In the description of the fixture 512, the same parts as those of the fixture 511 will be omitted.

First, the fixture 511 will be described with reference to fig. 1 and 9 to 21.

As shown in fig. 1, 9, and 10, the fixture 511 is a column shape that is long in the vertical direction as a whole, and has a right-angled triangular shape in a cross section in the horizontal direction, i.e., in the width direction. As shown in fig. 10, the fixture 511 extends in the vertical direction along a corner portion formed by the left inner panel 25 and the back inner panel 26. As shown in fig. 12 to 14, the fixture 511 includes a fixing cover 54, a reinforcing member 55, and a corner heat insulating member 56. The fixture 511 is formed in a tubular shape having a right-angled triangular cross section by the fixing cover 54 and the reinforcing member 55. The corner heat insulating member 56 is disposed inside the cylindrical shape formed by the fixed cover 54 and the reinforcing member 55.

Specifically, the fixing cover 54 is formed of a resin member into a rectangular substantially plate shape that is long in the vertical direction. The fixing cover 54 constitutes an inclined surface out of 3 surfaces of the cross section of the right triangle constituting the fixture 511. As shown in fig. 14 to 21, the fixing cover 54 has a plurality of through holes 58 and

openings

59 and 60. The through holes 58 are provided at both ends in the width direction perpendicular to the longitudinal direction of the fixed cover 54. As shown in fig. 16 and 19, the fixing cover 54 is inserted into the left side heat insulating wall 314 or the back side heat insulating wall 315 to form through holes 58 at both ends.

The through-hole 58 is disposed as far as possible from the other end portion of the through-hole 58. That is, the through-holes 58 are arranged in a staggered manner so as to be vertically different from the through-holes 58 located at the other end. In this case, the through-holes 58 are arranged in a so-called zigzag shape along the longitudinal direction of the fixed cover 54 as shown in fig. 13. The through hole 58 is penetrated by a screw 57. The insertion direction of the screw 57 into the through hole 58 on the left heat insulating wall 314 side is perpendicular to the inner surface of the left heat insulating wall 314, that is, the surface of the left inner panel 25, as shown in fig. 19. As shown in fig. 16, the insertion direction of the screw 27 into the through hole 58 on the back-side heat-insulating wall 315 side is perpendicular to the inner surface of the back-side heat-insulating wall 315, that is, the surface of the back inner panel 26.

As shown in fig. 13, the opening 59 is provided near the upper portion of the fixed cover 54 in the longitudinal direction, i.e., the vertical direction. The opening 60 is provided near a lower portion of the fixed cover 54 in the vertical direction. The

openings

59 and 60 communicate with the cylindrical inner side of the fixture 511.

As shown in fig. 14, the reinforcing member 55 is formed in a shape in which the longitudinal sides of 2 plates of a vertically long rectangle are joined at right angles to each other, i.e., a shape having a cross section in the shape of L, the reinforcing member 55 forms 2 faces other than the inclined face out of 3 faces constituting the cross section of a right triangle of the fixture 511, the reinforcing member 55 reinforces the fixture cover 54 to increase the strength of the fixture 511, and the length of the reinforcing member 55 in the longitudinal direction is set to a dimension substantially equal to the length of the fixture cover 54 in the longitudinal direction.

The reinforcing member 55 is disposed such that one surface faces the left side heat-insulating wall 314, which is the left inner panel 25, and the other surface faces the back side heat-insulating wall 315, which is the back inner panel 26. Thus, the reinforcing member 55 is disposed so as to span between the ends of the adjacent heat insulating walls 31, in this case, the end of the left heat insulating wall 314 and the end of the back heat insulating wall 315. That is, the first thermal insulation member 15 is not provided at the corner portion where the adjacent thermal insulation walls 31 are butted, and therefore, the thermal insulation performance is lower than that of the other portions of the thermal insulation walls 31. The fixture 511 is disposed in a portion of the heat insulating wall 31 having low heat insulating performance.

As shown in fig. 14, 16, and 17, the reinforcing member 55 has a plurality of screw holes 61 and a plurality of through holes 62. The screw holes 61 and the through holes 62 are provided at both ends in the width direction perpendicular to the longitudinal direction of the reinforcing member 55. The screw holes 61 and the through holes 62 are arranged in a so-called zigzag shape along the longitudinal direction of the reinforcing member 55 so as to correspond to the through holes 58 of the fixed cover 54.

The screw hole 61 is configured to have a female screw inside a cylinder located on the reinforcing member 55 and protruding toward the fixed cover 54 side. The axial direction of the screw hole 61 coincides with the axial direction of the through hole 58 of the fixed cover 54 in a state where the fixed cover 54 is attached to the reinforcing member 55. The screw hole 61 is provided for the set screw 57.

The through hole 62 is formed by penetrating a bulging portion 63 provided in the reinforcement member 55 toward the left inner panel 25 or the back inner panel 26. The bulging portion 63 is formed by bulging both ends in the width direction of the reinforcing member 55 toward the fixed cover 54. In this case, the bulging portion 63 is also arranged in a so-called zigzag shape along the longitudinal direction of the reinforcing member 55. The through hole 62 allows the screw 57 to pass therethrough.

As shown in fig. 9, the corner heat insulating member 56 is arranged to cover the abutting portion of the adjacent heat insulating walls 31. As shown in fig. 14, the corner heat insulating member 56 includes a heat insulating member such as polystyrene foam formed into a substantially triangular prism long in the vertical direction. The corner heat insulating member 56 has a plurality of cutout portions 64, 2 opening

portions

65 and 66, and a receiving portion 67.

The cutout 64 is formed by cutting both end portions in the width direction perpendicular to the longitudinal direction of the corner heat insulating member 56 into a rectangular shape. The cutout portion 64 is arranged in a so-called zigzag shape along the longitudinal direction of the corner heat insulating member 56 so as not to interfere with the screw 57 provided in the through hole 58 of the fixed cover 54, the screw hole 61 of the reinforcing member 55, and the through hole 62.

The

openings

65 and 66 are formed by cutting both ends in the width direction perpendicular to the longitudinal direction of the corner heat insulating member 56 into rectangles. The opening 65 corresponds to the opening 59 of the fixed cover 54, and the opening 66 corresponds to the opening 60 of the fixed cover 54.

The receiving portion 67 is formed in a groove shape extending in the longitudinal direction at a right-angled portion in a cross section perpendicular to the longitudinal direction of the corner heat insulating member 56, that is, a portion close to a corner of the corner portion of the inner box 14.

The electric wire 52 is housed inside the housing portion 67. That is, the fixture 511 houses the electric wire 52 in the cylindrical interior. The electric wire 52 is held so as not to be displaced from a predetermined position by the inner surface of the accommodating portion 67 serving as a holding portion. The electric wire 52 is also held by a hook or the like, not shown. In this case, the portion of the electric wire 52 provided inside the cylindrical shape of the fixture 511 is not visible from the opening side of the refrigerator 11.

The fixture 511 is formed by dividing the height position of the second partition member 38 into two parts in the longitudinal direction, i.e., the vertical direction, and in this case, the upper fixture 511 and the lower fixture 511 are connected to each other. Therefore, as shown in fig. 1, 12, 13, and 14, the fixed cover 54 includes 2 parts, in this case, an upper fixed cover 541 and a lower fixed cover 542, which are divided in the longitudinal direction of the fixed cover 54. With this configuration, handling of the fixing cover 54 becomes easy, and deformation such as twisting is less likely to occur. In this case, the opening 59 is provided in the upper fixing cover 541, and the opening 60 is provided in the lower fixing cover 542.

Also, the reinforcing member 55 includes 2 parts divided in the longitudinal direction of the reinforcing member 55, in this case, an upper reinforcing member 551 and a lower reinforcing member 552. The corner heat insulating member 56 also includes 2 members divided in the longitudinal direction of the corner heat insulating member 56, in this case, an upper corner heat insulating member 561 and a lower corner heat insulating member 562. The opening 65 is provided in the upper corner heat insulating member 561, and the opening 66 is provided in the lower corner heat insulating member 562.

In this configuration, the upper fixing cover 541, the upper reinforcing member 551, and the upper corner heat insulating member 561 constitute an upper fixing tool 511. The lower fixing cover 542, the lower reinforcing member 552, and the lower corner heat insulating member 562 constitute the lower fixture 511. In the left corner of inner box 14, upper fixture 511 is disposed on refrigerating room 39 and vegetable room 40, and lower fixture 512 is disposed on ice making room 41 and first freezing room 42.

The lower end of the upper reinforcing member 551 is provided with 2 screw holes 48. Further, 2 through holes 49 are provided at positions corresponding to the screw holes 48 in the upper end portion of the lower reinforcing member 552. The upper reinforcing member 551 and the lower reinforcing member 552 are fixed to each other by screwing the screw 50 passing through the through hole 49 into the screw hole 48.

In this way, the fixture 511 as a whole can be divided into two parts in the longitudinal direction, which is the direction extending along the corner portion. In this case, as shown in fig. 12 and 13, the lower end of the upper corner heat insulating member 561 contacts the upper end of the lower corner heat insulating member 562. The lower end of the upper fixing cover 541 is separated from the upper end of the lower fixing cover 542.

The electric wire 52 extends from the machine room 21 to the refrigerating room 39 side through the upper separation part 211, and enters the housing part 67 of the corner heat insulating member 56 from the upper end of the fixture 511. Next, the electric wire 52 is branched in two directions in the housing portion 67. One of the electric wires 52 passes through the opening 65 of the upper corner heat insulating member 561 and extends from the opening 59 of the upper fixing cover 541 toward the refrigerating chamber 39. The other side of electric wire 52 passes through opening 66 of lower corner heat insulating member 562 and extends from opening 60 of lower fixing cover 542 toward first freezing chamber 42. Thus, the

openings

59 and 60 serve to guide a part of the electric wire 52 housed in the fixture 511 to the storage compartment side. Further, a part of the electric wire 52 may be guided from the lower end surface of the fixture 511 to the component storage chamber 212 through the lower separation portion 213.

As shown in fig. 13 and 14, the electric wire 52 has a connection portion 68 at each end. These connecting portions 68 are made of resin and are formed in a plug shape. The connection portion 68 is connected to an electric wire, not shown, outside the fixture 511, and is connected to an electric component such as a control device and a blower fan, for example, via the electric wire.

As shown in fig. 14 and 16 to 19, a first seal member 71 is provided between the fixed cover 54 and the reinforcing member 55, specifically, between an end portion of the fixed cover 54 in the width direction and an end portion of the reinforcing member 55 in the width direction. The first seal member 71 is a sheet-like member extending long in the longitudinal direction of the fixed cover 54 and the reinforcing member 55, and includes, for example, a soft tape. The first seal member 71 seals between the fixed cover 54 and the reinforcing member 55. That is, the first sealing member 71 improves airtightness between the fixed cover 54 and the reinforcing member 55.

As shown in fig. 14 to 19, the second sealing member 72 is provided between the reinforcing member 55 and the left heat-insulating wall 314 and between the reinforcing member 55 and the back heat-insulating wall 315. The second seal member 72 is a sheet-like member extending long in the longitudinal direction of the fixed cover 54 and the reinforcing member 55, and includes, for example, a soft tape. The second sealing member 72 seals between the reinforcing member 55 and the left heat-insulating wall 314 and between the reinforcing member 55 and the back-side heat-insulating wall 315. That is, the second seal member 72 improves the airtightness between the reinforcement member 55 and the left inner panel 25 and between the reinforcement member 55 and the back inner panel 26.

As shown in fig. 9, a third sealing member 73 is provided at an end of the heat insulating wall 31, for example, at a portion where the left heat insulating wall 314 and the back heat insulating wall 315 are butted against each other. The third sealing member 73 is a quadrangular prism-shaped member extending in parallel with the longitudinal direction of the fixed cover 54 and the reinforcing member 55, and includes, for example, a soft tape. The third seal member 73 assists heat insulation in a space formed at the abutting portion of the left side heat-insulating wall 314 and the back side heat-insulating wall 315, and inhibits moisture-containing air or the like from entering the space. In fig. 20 and 21, the third seal member is not shown.

In this way, the fixture 511 is configured such that the corner heat insulating member 56 is sandwiched between the fixing cover 54 and the reinforcing member 55. The corner heat insulating member 56 houses the electric wire 52 in the housing portion 67. The fixing cover 54 has a through hole 58 through which a screw 57 is inserted in a state where an end in the width direction is abutted against an end in the width direction of the reinforcing member 55. The screw 57 inserted into the through hole 58 is screwed into the screw hole 61 of the reinforcing member 55. Thereby, the fixed cover 54 is fixed to the reinforcing member 55. Further, the fixing cover 54 is fixed to the reinforcing member 55, and thereby the corner heat insulating member 56 and the electric wire 52 are also fixed to the inside of the fixture 511.

In this case, the fixing cover 54, the reinforcing member 55, the corner heat insulating member 56, and the electric wire 52 are integrated. Further, the left rear end portion of the second partition member 38 enters between the upper fixing cover 541 and the lower fixing cover 542, and contacts the connecting portion of the upper corner heat insulating member 561 and the lower corner heat insulating member 562. Thus, the divided portion of the fixture 511 is covered by the left rear end portion of the second partition member 38.

The left heat-insulating wall 314 and the back heat-insulating wall 315 face the reinforcing member 55 via the second sealing member 72. Thereby, the adjacent left heat-insulating wall 314 and back heat-insulating wall 315 are coupled and fixed by the fixture 511, and the angle formed by the left heat-insulating wall 314 and the back heat-insulating wall 315 is maintained at 90 ° corresponding to the right-angled portion of the reinforcing member 55. That is, the reinforcing member 55 functions as an angle holding portion that holds the angle between the adjacent left side heat insulating wall 314 and the back side heat insulating wall 315 at 90 °.

Next, the fixture 512 will be described with reference to fig. 22 to 31.

As shown in fig. 22, 23, and 25, the fixture 512 is a column-shaped fixture that is long in the vertical direction as a whole, and has a right-angled triangle cross section in the horizontal direction. As shown in fig. 23, the fixture 512 extends in the vertical direction along a corner portion formed by the right inner panel 24 and the back inner panel 26. As shown in fig. 25 to 27, the fixture 512 includes a fixing cover 81, a reinforcing member 82, and a corner heat insulating member 83. The fixture 512 is formed in a tubular shape having a right-angled triangular cross section by the fixing cover 81 and the reinforcing member 82. The corner heat insulating member 83 is disposed inside the cylindrical shape formed by the fixed cover 81 and the reinforcing member 82.

The fixed cover 81 is configured substantially similarly to the fixed cover 54. Specifically, the fixing cover 81 is formed in a substantially rectangular plate shape that is long in the vertical direction by a resin member. The fixing cover 81 constitutes an inclined surface out of 3 surfaces of the cross section of the right triangle constituting the fixture 512. As shown in fig. 27, the fixed cover 81 has a plurality of through holes 84. The through hole 84 is configured similarly to the through hole 58 of the fixed cover 54. That is, the through holes 84 are provided at both ends in the width direction perpendicular to the longitudinal direction of the fixed cover 81. The through holes 84 at both ends are formed by penetrating the fixing covers 81 toward the right side heat insulating wall 313 or the back side heat insulating wall 315.

The through-holes 84 are arranged at different positions in the vertical direction from the through-holes 84 located at the other end. In this case, for example, as shown in fig. 27, the through-holes 84 are arranged in a so-called zigzag shape along the longitudinal direction of the fixed cover 81. The through hole 84 is penetrated by a screw 57. As shown in fig. 29, the insertion direction of the screw 27 into the through hole 84 on the back-side heat-insulating wall 315 side is perpendicular to the inner surface of the back inner panel 26, which is the inner surface of the back-side heat-insulating wall 315. As shown in fig. 31, the insertion direction of the screw 27 into the through hole 84 on the right heat insulating wall 313 side is perpendicular to the inner surface of the right heat insulating wall 313, that is, the surface of the right inner panel 24.

As shown in fig. 26 and 27, the fixing cover 81 includes a first projecting portion 85, an opening portion 86, a second projecting portion 87, and an opening portion 88. The first projecting portion 85 is located near an upper portion in the longitudinal direction of the fixed cover 81 and projects outward. That is, the first projecting portion 85 extends horizontally from the surface of the fixing cover 81 along the back inner panel 26. The first projecting portion 85 is formed in a rectangular container shape with the back inner panel 26 side open. The opening 86 is provided at the distal end of the first protruding portion 85, and communicates the inside and the outside of the first protruding portion 85.

The second protruding portion 87 is provided near the lower portion of the fixed cover 81 in the longitudinal direction. The second projecting portion 87 projects outward in the same manner as the first projecting portion 85. That is, the second protruding portion 87 extends horizontally from the face of the fixing cover 81 along the back inner panel 26. The second protruding portion 87 is also formed in a rectangular container shape with the back inner panel 26 side open. The opening 88 is provided at the distal end of the second protruding portion 87, and communicates the inside and outside of the second protruding portion 87.

The reinforcing member 82 is formed substantially similarly to the reinforcing member 55, that is, the reinforcing member 82 is formed of a resin member, the main body portion of the reinforcing member 82 is formed in a shape in which the longitudinal sides of 2 plates of a vertically long rectangle are joined at right angles to each other, that is, in a shape having a so-called L-shaped cross section, the reinforcing member 82 is formed in 2 faces other than the inclined faces among the faces constituting the cross section of the right triangle of the fixture 512, the reinforcing member 82 reinforces the fixture cover 81 to increase the strength of the fixture 512, and the length of the reinforcing member 55 in the longitudinal direction is set to a dimension substantially equal to the length of the fixture cover 54 in the longitudinal direction.

The reinforcing member 82 has a first reinforcing protrusion 91 and a second reinforcing protrusion 92. The first reinforcing protrusion 91 and the second reinforcing protrusion 92 are plate-shaped and provided at positions corresponding to the first protrusion 85 and the second protrusion 87 of the fixed cover 81, respectively. These first reinforcing protrusion 91 and second reinforcing protrusion 92 are formed integrally with the main body portion of the reinforcing member 82. The first projecting portion 85 and the first reinforcing projecting portion 91, and the second projecting portion 87 and the second reinforcing projecting portion 92 are formed in a tubular shape.

The reinforcing member 82 is disposed such that one surface faces the right side heat-insulating wall 313, which is the right inner panel 24, and the other surface faces the back side heat-insulating wall 315, which is the back inner panel 26. Thus, the reinforcing member 82 is disposed so as to straddle between the ends of the adjacent heat insulating walls 31, in this case, the end of the right heat insulating wall 313 and the end of the back heat insulating wall 315. Therefore, the first thermal insulation member 15 is not provided at the corner portion where the adjacent thermal insulation walls 31 are butted, and therefore the thermal insulation performance is lower than that of the other portions of the thermal insulation walls 31. The fixture 512 is disposed in a portion of the heat insulating wall 31 having low heat insulating performance.

As shown in fig. 27, the reinforcing member 82 has a plurality of screw holes 89 and a plurality of through holes 90. The screw hole 89 and the through hole 90 are configured similarly to the screw hole 61 and the through hole 62 of the reinforcing member 55. That is, the screw hole 89 and the through hole 90 are provided at both ends in the width direction perpendicular to the longitudinal direction of the reinforcing member 82. The screw holes 89 and the through holes 90 correspond to the through holes 84 of the fixing cover 81, and are arranged in a so-called zigzag shape along the longitudinal direction of the reinforcing member 82.

The screw hole 89 is configured to have a female screw inside a cylinder located on the reinforcing member 82 and protruding toward the fixed cover 81 side. The axial direction of the screw hole 89 coincides with the axial direction of the through hole 84 of the fixing cover 81 in a state where the fixing cover 81 is attached to the reinforcing member 82. The threaded hole 89 is provided for the set screw 57.

The through hole 90 is formed by penetrating the bulge portion 77 provided in the reinforcement member 82 to the right inner panel 24 or the back inner panel 26 side. The bulging portion 77 is formed by bulging both ends in the width direction of the reinforcing member 82 toward the fixed cover 81. In this case, the bulging portion 77 is also arranged in a so-called zigzag shape along the longitudinal direction of the reinforcing member 82. The through hole 90 is for the screw 57 to pass through.

The corner heat insulating member 83 is substantially the same as the corner heat insulating member 56. That is, the corner heat insulating member 83 is also disposed so as to cover the abutting portion of the adjacent heat insulating walls 31. As shown in fig. 27, the corner heat insulating member 83 includes a heat insulating member such as polystyrene foam formed into a substantially triangular prism long in the vertical direction. The corner heat insulating member 83 has a plurality of cutout portions 93, a first heat insulating protrusion 94, an opening portion 95, a second heat insulating protrusion 96, an opening portion 97, and a receiving portion 98.

The cutout 93 is formed by cutting both ends in the width direction perpendicular to the longitudinal direction of the corner heat insulating member 83 into a rectangular shape. The cutout portion 93 is arranged in a so-called zigzag shape along the longitudinal direction of the corner heat insulating member 83 so as not to interfere with the screw 57 provided in the through hole 84 of the fixed cover 81, the screw hole 89 of the reinforcing member 82, and the through hole 90.

The housing portion 98 is configured in the same manner as the housing portion 67 of the corner heat insulating member 56. That is, the housing portion 98 is formed in a groove shape extending in the longitudinal direction at a right-angled portion in a cross section perpendicular to the longitudinal direction of the corner heat insulating member 83, that is, a portion close to a corner of the corner portion of the inner box 14.

As shown in fig. 27, the first heat insulating protrusion 94 is located near the upper portion of the corner heat insulating member 83, i.e., at a position corresponding to the first protrusion 85, and protrudes outward. That is, the first heat insulating protrusion 94 extends horizontally from the main body portion of the corner heat insulating member 83 along the back inner panel 26. The first heat insulating protrusion 94 is formed in a quadrangular prism shape. The opening 95 is provided at the tip end of the first heat insulating protrusion 94 and communicates with the inside of the accommodating portion 98. The first heat insulating protrusion 94 is housed inside a cylindrical shape including the first protrusion 85 and the first reinforcing protrusion 91.

The second heat insulating protrusion 96 is located near the lower portion of the corner heat insulating member 83, i.e., at a position corresponding to the second protrusion 87, and protrudes outward. That is, the second heat insulating protrusion 96 extends horizontally from the main body portion of the corner heat insulating member 83 along the back inner panel 26. The second heat insulating protrusion 96 is also formed in a quadrangular prism shape. The opening 97 is provided at the distal end of the second heat insulating protrusion 96 and communicates with the inside of the housing 98. The second heat insulating protrusion 96 is housed inside a cylindrical shape including the second protrusion 87 and the second reinforcing protrusion 92.

The pipe 53 is housed inside the housing portion 98. That is, the fixture 512 accommodates the pipe 53 in the cylindrical interior. The pipe 53 is held so as not to be displaced from a predetermined position by the inner surface of the housing portion 98 serving as a holding portion. The pipe 53 is also held by a hook or the like, not shown. In this case, the pipe 53 is not visible from the opening side of the refrigerator 11 at the portion provided inside the cylindrical shape of the fixture 512. In addition, a plurality of pipes 53 are housed at the positions utilizing the corner portions.

The fixture 512 is formed by dividing the height position of the second partition member 38 into two parts in the longitudinal direction, i.e., the vertical direction, and in this case, the upper fixture 512 and the lower fixture 512 are connected to each other. Therefore, as shown in fig. 27 and the like, the fixed cover 81 includes 2 parts divided in the longitudinal direction of the fixed cover 81, in this case, an upper fixed cover 811 and a lower fixed cover 812. With this configuration, handling of the fixing cover 81 becomes easy, and deformation such as twisting is less likely to occur. In this case, the first projecting portion 85 and the opening portion 86 are provided in the upper fixing cover 811, and the second projecting portion 87 and the opening portion 88 are provided in the lower fixing cover 812.

Likewise, the reinforcing member 82 includes 2 parts, in this case, an upper reinforcing member 821 and a lower reinforcing member 822, which are divided in the longitudinal direction of the reinforcing member 82. The corner heat insulating member 83 also includes 2 pieces divided in the longitudinal direction of the corner heat insulating member 83, in this case, the upper corner heat insulating member 831 and the lower corner heat insulating member 832. The first heat insulating protrusion 94 and the opening 95 are provided in the upper corner heat insulating member 831, and the second heat insulating protrusion 96 and the opening 97 are provided in the lower corner heat insulating member 832.

In this configuration, the upper fixing cover 811, the upper reinforcing member 821, and the upper corner heat insulating member 931 constitute the upper fixing tool 512. The lower fixing cover 812, the lower reinforcing member 822, and the lower corner heat insulating member 932 constitute the lower fixture 512. In the right corner of inner box 14, upper fixture 512 is disposed on the side of refrigerating room 39 and vegetable room 40, and lower fixture 512 is disposed on the side of second freezing room 43 and first freezing room 42.

The lower end of the upper reinforcing member 821 is provided with 2 screw holes 74. Further, 2 through holes 75 are provided at positions corresponding to the screw holes 74 in the upper end portion of the lower reinforcing member 822. The upper reinforcement member 821 and the lower reinforcement member 822 are fixed by screwing the screw 76 inserted through the through hole 75 into the screw hole 74.

In this way, the entire fixture 512 is configured to be separable into two parts in the longitudinal direction, which is the direction extending along the corner portion. In this case, as shown in fig. 24 and 26, the lower end of the upper corner heat insulating member 831 contacts the upper end of the lower corner heat insulating member 832. Further, the lower end portion of the upper fixing cover 811 is separated from the upper end portion of the lower fixing cover 812.

The piping 53 includes 2 bent pipes. As shown in fig. 5 and 25 to 27, each of the 2 pipes 53 has a bypass 531. The bypass 531 is located near the upper portion of the pipe 53 and is formed by being bent a plurality of times in the horizontal direction. The piping 53 can secure a long distance by the bypass 531, and thus heat exchange of the refrigerant passing through the piping 53 can be improved.

One end of each pipe 53 is connected to a compressor provided in the machine chamber 21, and the other end is connected to a cooler. Specifically, each pipe 53 extends from the machine chamber 21 side to the refrigerating chamber 39 side through the communication hole 211a of the upper separating portion 211. In this case, the communication hole 211a is preferably formed on the upper surface of the fixture 512. Then, each pipe 53 passes through the bypass 531, and enters the accommodating portion 98 of the corner heat insulating member 83 from the upper end of the fixture 512. In this case, as shown in fig. 5, the bypass 531 is housed in the second heat insulating member 151 of the separation portion 211. One of the 2 pipes 53 passes through the first heat insulating protrusion 94 provided in the upper corner heat insulating member 831, and extends from the opening 95 and the opening 86 toward the refrigerating room 39. Next, the pipes 53 extending from the

openings

95 and 86 are connected to a cooler for cold storage, but not shown in detail.

The other pipe 53 passes through the inside of the second heat-insulating protrusion 96 provided on the lower corner heat-insulating member 832, and extends from the opening 97 and the opening 88 toward the first freezing chamber 42. The pipes 53 extending from the

openings

97 and 88 are connected to a cooler for refrigeration, but are not shown in detail. In this case, the

openings

86 and 88 serve to guide a part of the pipe 53 housed inside the fixture 512 to the storage compartment side. Further, a part of the pipe 53 may be guided from the lower end surface of the fixture 512 to the component accommodation chamber 212 through a communication hole, not shown, of the lower separation portion 213.

As shown in fig. 25 and 27, each pipe 53 has a welded portion 99 at each end. The pipe 53 is formed to have a larger diameter than the other pipes, so that the welded portion 99 can be welded to the welded portion of the other pipes. Each pipe 53 is welded and connected to another pipe outside the fixture 512. The other pipes are pipes connected to, for example, an evaporator for refrigeration, an evaporator for freezing, and a compressor.

As shown in fig. 29 to 31, a first seal member 101 is provided between the fixed cover 81 and the reinforcing member 82, specifically, between the end portion of the fixed cover 81 in the width direction and the end portion of the reinforcing member 82 in the width direction. The first sealing member 101 is configured similarly to the first sealing member 71 provided in the fixture 511.

As shown in fig. 29 to 31, the second sealing member 102 is provided between the reinforcing member 82 and the right-side heat-insulating wall 313 and between the reinforcing member 82 and the back-side heat-insulating wall 315. The second seal member 102 is configured similarly to the second seal member 72 provided on the fixture 511 side.

As shown in fig. 22, a third sealing member 103 is provided in a portion where the right heat insulating wall 313 and the back heat insulating wall 315 are butted against each other. The third sealing member 103 is configured in the same manner as the third sealing member 73 provided at the abutting portion between the right-side heat-insulating wall 313 and the back-side heat-insulating wall 315.

In this way, the fixture 512 is configured such that the corner heat insulating member 83 is sandwiched between the fixing cover 81 and the reinforcing member 82. The corner heat insulating member 83 accommodates the pipe 53 in the accommodating portion 98. The screw 57 is inserted through the through hole 84 in a state where the end in the width direction of the fixed cover 81 is abutted against the end in the width direction of the reinforcing member 82. The screw 57 passed through the through hole 84 is screwed into the screw hole 61 of the reinforcing member 82. Thereby, the fixing cover 81 is fixed to the reinforcing member 82. Further, the fixing cover 81 is fixed to the reinforcing member 82, and thereby the corner heat insulating member 83 and the pipe 53 are also fixed to the inside of the fixture 51.

In this case, the fixing cover 81, the reinforcing member 82, the corner heat insulating member 83, and the pipe 53 are integrated. Further, the right rear end portion of the second partition member 38 enters between the upper fixing cover 811 and the lower fixing cover 812, and contacts the connecting portion of the upper corner heat insulating member 831 and the lower corner heat insulating member 832. Thus, the divided portion of the fixture 512 is covered by the right rear end portion of the second partition member 38.

The right-side heat insulating wall 313 and the back-side heat insulating wall 315 face the reinforcing member 82 via the second sealing member 102. Thereby, the adjacent right heat-insulating wall 313 and back heat-insulating wall 315 are coupled and fixed by the fixture 512, and the angle formed by the right heat-insulating wall 313 and back heat-insulating wall 315 is maintained at 90 ° corresponding to the right-angled portion of the reinforcing member 82. That is, the reinforcing member 82 functions as an angle holding portion that holds the angle between the adjacent right-side heat insulating wall 313 and back-side heat insulating wall 315 at 90 °.

As shown in fig. 32, the pipe 53 may pass between the right end edge of the second partition member 38 and the right inner plate 24. In this case, a partition heat insulating member 105 is provided inside the inner box 14 between the face partition 45 of the second partition member 38 and the right inner panel 24 of the inner box 14. The partition heat insulating member 105 is made of, for example, polystyrene foam, and functions as a heat insulating member. The partition heat insulating member 105 is formed in a quadrangular prism shape that is long in the front-rear direction along the right end edge portion of the second partition member 38. The partition heat insulating member 105 has a recess 106. The recess 106 is formed in a concave shape that opens on the right inner panel 24 side of the heat insulating member 105 for partitions. A part of the pipe 53 is provided inside the recess 106 of the heat insulating member 105 for partitions. In this case, although not shown in detail, the pipe 53 may be disposed as described below.

For example, 2 pipes 53 are inserted into the storage portion 98 of the upper corner heat insulating member 831 from the upper end of the fixture 512 and extend downward. Then, the pipes 53 extend from the connection portions between the upper corner heat insulating member 831 and the lower corner heat insulating member 832 to the outside and forward of the housing portion 98. The pipes 53 pass through the inside of the recess 106 of the partition heat insulating member 105 and extend forward along the right edge of the second partition member 38. Then, the pipes 53 are folded back toward the rear at the front end of the second partition member 38, and extend rearward along the right end edge of the second partition member 38 inside the recess 106 again. Next, the pipe 53 enters the inside of the housing portion 98 of the lower corner heat insulating member 832 from the connecting portion between the upper corner heat insulating member 831 and the lower corner heat insulating member 832. Then, the pipe 53 extends from the

openings

86 and 88 and is connected to the refrigerating cooler and the freezing cooler, respectively.

Further, although not shown, a member having the same configuration as the heat insulating member 105 for partitions may be provided between the surface partition 45 of the second partition member 38 and the left inner panel 25 of the inner box 14 inside the inner box 14, and the electric wire 52 may be arranged along the left end edge of the second partition member 38, similarly to the pipe 53 described above.

The procedure of assembling heat insulating box 12 of the refrigerator according to the present embodiment will be described with reference to fig. 1 and 33.

First, the heat insulating wall 31 and the fixture 51 shown in fig. 1 are manufactured. Next, as shown in fig. 33, a fixture 511 is attached to one of the adjacent 2 heat insulating walls 31, for example, the left heat insulating wall 314, by a screw 57. Next, the back-side heat-insulating wall 315 is attached to a member in which the left heat-insulating wall 314 and the fixture 511 are integrated. Thus, the adjacent heat insulating wall 31, in this case, the left heat insulating wall 314 and the rear heat insulating wall 315 are connected and fixed to each other, thereby forming a corner portion on the right rear side of the inner box 14. In this case, the angle of the adjacent wall formed by the left side heat-insulating wall 314 and the back side heat-insulating wall 315 is kept at 90 ° corresponding to the right-angled portion of the reinforcing member 55. The other corner portions of the inner box 14 are also formed by connecting and fixing the heat insulating wall 31 to the fixture 51. Thus, the inner box 14 having the adjacent heat insulating walls 31 at an angle of 90 ° is formed, and the rectangular parallelepiped heat insulating box body 12 is formed.

In this way, the fixing tool 51 defines the angle of the adjacent heat insulating wall 31 to a predetermined value, for example, 90 °. In addition, in this case, the angle of the adjacent heat insulating wall 31 may be adjusted to substantially 90 ° as long as each corner of the heat insulating box 12 is substantially 90 °, instead of setting the angle of the adjacent heat insulating wall 31 to 90 °. That is, the angle defined for the fixture 51 does not need to be too tight, allowing it to be within the range of general errors that occur during the manufacturing process.

The first partition member 37 and the second partition member 38 are attached to the thus assembled heat insulation box 12 at predetermined positions. Thereby, a refrigerating chamber 39, a vegetable chamber 40, an ice making chamber 41, a first freezing chamber 42, and a second freezing chamber 43 are formed inside the heat insulating box 12. The front ends of the right and left heat insulating walls 313, 314 are connected and fixed by the first and

second partition members

37, 38.

According to the above configuration, the following effects are obtained.

According to the above configuration, the electric wire 52 and the pipe 53 are provided in the housing space of the heat insulation box 12. That is, the electric wire 52 and the piping 53 are not provided inside the heat insulating wall 31. Therefore, it is not necessary to consider that a space for accommodating the electric wire 52 and the piping 53 is secured inside the heat insulating wall 31. Thus, the heat insulating wall 31 can make the thickness of the first heat insulating member 15, which has better heat insulating performance than the second heat insulating member 151, as thick as possible. As a result, the refrigerator has excellent heat insulation performance and can sufficiently secure an inner space.

The electric wires 52 and the pipes 53 are provided at the rear portion of the inner box 14, in this case, at the rear and rear corner portions of the heat insulation box body 12. Therefore, the electric wire 52 and the piping 53 are less likely to be obstacles when food is stored in the tank.

An upper separation part 211 connected to the machine chamber 21 is provided directly on the fixture 51. A lower separation portion 213 connected to the component storage chamber 212 is provided directly below the fixture 51. Therefore, the electric wire 52 and the pipe 53 passing through the fixture 51 can be easily guided to the machine chamber 21 and the component storage chamber 212 by passing through the upper and

lower separation portions

211 and 213. Thus, the electric wire 52 and the pipe 53 can be easily connected to other electric wires and pipes in the machine chamber 21 and the component housing chamber 212.

Further, a communication hole 211a that penetrates the second heat insulating member 151 of the separating portion 211 to communicate with the machine chamber 21 is provided above the fixture 51. Therefore, the electric wire 52 and the pipe 53 can extend in the vertical direction. As a result, the arrangement of the electric wires 52 and the pipes 53 is facilitated.

The second heat insulating member 151 is configured to be fillable. Therefore, the communication hole 211a can be easily formed. In addition, the bypass 531 of the pipe 53 can be easily covered by the second heat insulating member 151.

The electric wires 52 and the pipes 53 provided at the corner portions of the inner box 14 are covered with the fixing covers 54 and 81 of the fixing tool 51. Therefore, the food in the storage compartment can be prevented from coming into contact with the electric wire 52 and/or the pipe 53 as much as possible. Further, since the electric wires 52 and the piping 53 are not visible to the user, the design of the inside of the storage room can be improved.

The heat insulating box 12 of the refrigerator 11 is configured by combining a plurality of divided heat insulating walls 31 and fastening and fixing 2 adjacent heat insulating walls 31 by a fastening tool 51. This facilitates the assembly of the refrigerator 11, compared to a conventional structure in which a heat insulating member is provided in advance in the three-dimensional inner box.

The insulation member 15 includes a vacuum insulation panel. Therefore, a high heat insulating effect can be obtained by the vacuum heat insulating panel, and the heat insulating wall 31 constituting the heat insulating box body 12 can be made thin, and as a result, the space in the box can be increased.

The reinforcing

members

55 and 82 of the fixture 51 function as angle holding portions for holding the angle of the adjacent heat insulating wall 31 at 90 °. This enables the inner box 14 to be formed in a rectangular parallelepiped shape. Further, since the heat insulating box body 12 is configured to hold the corner of the inner box 14 at 90 °, the heat insulating wall 31 can be easily assembled.

The fixture 51 is fixed in a position opposite to the adjacent and separated 2 first insulating members 15. Therefore, the first heat insulating member 15 can be fixed with the fixture 51 as a reference. As a result, the angle of the adjacent insulating walls 31 is easily maintained at 90 °.

The right heat insulating wall 313 and the left heat insulating wall 314 are connected and fixed by the first partition member 37 and the second partition member 38 at the vicinity of the vertical center. Therefore, the front end portion of the right heat-insulating wall 313 and the front end portion of the left heat-insulating wall 314 are firmly fixed together. This can suppress the opening of the front opening of the inner box 14 in the left-right direction. Further, the distortion of the inner box 14 can be suppressed, and the inner box 14 and the heat insulating box body 12 can be held in rectangular parallelepiped shapes.

The electric wires 52 and the pipes 53 provided at the corner portions of the inner box 14 are covered with the fixture 51. Therefore, the food in the storage compartment can be prevented from coming into contact with the electric wire 52 and/or the pipe 53 as much as possible. Further, since the electric wires 52 and the piping 53 are not visible to the user, the design of the inside of the storage room can be improved.

Corner

heat insulating members

56 and 83 are provided at the corner portions of the inner box 14. This can improve the heat insulating effect at the corner. Further, since the corner

heat insulating members

56 and 83 are covered with the fixture 51, the design of the inside of the storage room can be improved as described above.

The corner

heat insulating members

56 and 83 are disposed so as to cover the abutting portions of the adjacent heat insulating walls 31. That is, the abutting portions of the 2 heat insulating walls 31, the heat insulating performance of which tends to be relatively low, are supplemented with the heat insulating performance by the corner

heat insulating members

56, 83. This improves the heat insulating performance of the entire heat insulating box 12.

The fixture 51 is formed in a cylindrical shape, and the electric wire 52 or the pipe 53 and the corner

heat insulating members

56 and 83 are housed inside the cylindrical shape. This prevents the wires 52, the pipes 53, and the corner

heat insulating members

56 and 83 from being seen by the user, thereby improving the design of the interior of the storage room.

The fixture 51 has the reinforcing

members

55, 82 formed in L-shaped cross sections, whereby the fixture 51 achieves an improvement in strength against deformation such as twisting and bending, and the fixture 51 is easily formed in a cylindrical shape because the fixing covers 54, 81 are provided on the reinforcing

members

55, 82 formed in L-shaped cross sections.

Since the electric wire 52 and the pipe 53 are held by the

housing portions

67 and 98 of the corner

heat insulating members

56 and 83, the electric wire 52 and the pipe 53 can be prevented from being displaced from predetermined positions.

The fixing cover 54 of the fixture 511 has

openings

59 and 60. The electric wire 52 passed through the fixture 511 is passed through the

openings

59 and 60 and guided to the storage compartment side. Thus, the electric wire 52 can be extended from the

openings

59 and 60 to the storage compartment side and connected to the electric wire located outside the fixture 511, that is, the storage compartment side. In particular, the wire 52 has a connection portion 68 for connection to another wire at an end portion extending from the

openings

59 and 60 of the fixture 511. This allows the wire 52 to be easily connected to another wire outside the fixture 511.

The fixing cover 81 of the fixture 512 has

openings

86 and 88. The pipe 53 passed through the fixture 512 is guided to the storage compartment side through the

openings

86 and 88. Thus, the pipe 53 can be extended from the

openings

86 and 88 to the storage compartment side and connected to the pipe on the storage compartment side. In particular, the pipe 53 has a welding portion 99 for welding to another pipe at an end portion extending from the opening

portions

86 and 88 of the fixture 512. This allows the pipe 53 to be easily welded to another pipe outside the fixture 512.

The wire 52 is integrated with the fixture 511, and the pipe 53 is integrated with the fixture 512. In this case, when the heat insulating wall 31 is coupled and fixed by the fixture 51, the electric wire 52 and the pipe 53 are also provided at a predetermined corner portion of the heat insulating wall 31. This can simplify the assembly work of the electric wire 52 and the pipe 53.

The electric wire 52 is provided at a corner portion on the left and rear sides of the inner box 14 and covered with a fixture 511. The pipe 53 is provided at a corner portion on the right rear side of the inner box 14 and is covered with the fixture 512. This reduces the cooling of the electric wire 52 by the pipe 53.

Further, when a part of the pipe 53 is arranged along the right edge of the second partition member 38, the pipe 53 can be extended without enlarging the fixture 51. Thus, when the pipe 53 is a suction pipe, the length of the pipe 53 can be secured to sufficiently secure the storage space of the storage chamber, thereby improving the efficiency of heat exchange.

First seal members

71, 101 are provided between the fixed covers 54, 81 and the reinforcing

members

55, 82, respectively. The

first sealing members

71, 101 suppress the inflow of cold air into the inside of the

fixtures

511, 512. This can prevent dew condensation from occurring on the components inside the fixture 51, for example, the electric wire 52.

Second sealing members

72, 102 are provided between the heat insulating wall 31 and the fixture 51. The

second sealing members

72, 102 seal between the reinforcing

members

55, 82 and the heat insulating wall 31, respectively. That is, the

second sealing members

72, 102 improve airtightness between the reinforcing

members

55, 82 and the heat insulating wall 31, respectively. This suppresses entry and exit of air into and from the storage chamber, which is the interior of the heat insulating box 12, through the abutting portions of the adjacent 2 heat insulating walls 31. Therefore, it is possible to reduce the leakage of the cold air in the storage room to the outside of the heat insulating box 12 and the inflow of the warm air outside the heat insulating box 12 into the storage room.

Third sealing

members

73, 103 are provided between abutting portions of the adjacent 2 heat insulating walls 31, for example, between the right heat insulating wall 313 and the back heat insulating wall 315 and between the left heat insulating wall 314 and the back heat insulating wall 315. This makes it possible to sufficiently insulate the inside of the heat insulation box 12 from the outside, and as a result, the inside of the heat insulation box 12 can be efficiently cooled.

The fixture 51 is divided into a plurality of, in this case, 2 pieces in the direction extending along the corner portion. Therefore, handling of the fixture 51 becomes easy. Further, a second partition member 38 is disposed at the divided portion of the fixture 51. This can prevent the cold air in the storage compartment from entering the interior of the fixture 51 from the divided portion of the second partition member 38.

The heat insulating wall 31 is configured by sandwiching the first heat insulating member 15 between the outer plates 16 to 20 and the inner plates 22 to 26. The first heat insulating member 15 includes a vacuum heat insulating panel which is thin and excellent in heat insulating performance. Therefore, the heat insulating wall 31 can obtain high heat insulating performance by the vacuum heat insulating panel and can be thinned. Therefore, the internal volume of the heat insulating box 12 can be increased if the external dimensions are the same as compared with those of the case using a heat insulating material such as polyurethane.

The second heat insulating member 151 is filled in the separated portion 211. Therefore, the strength of the heat insulating wall 31 can be improved.

In the conventional structure in which the heat insulating box body is not divided, for example, the inner box or the outer box is assembled into a box shape and then the box is assembled separately, and the assembly becomes large and large. In the present configuration, the heat insulating box body 12 is configured by combining a plurality of divided heat insulating walls 31, and therefore, the assembly can be made compact.

(second embodiment)

Next, a second embodiment will be described with reference to fig. 34. The configuration of the corner portion on the left-rear side of the inner box 14 described in the second embodiment can be applied to other corner portions.

The fixture 111 of the second embodiment does not have a reinforcing member. The fixture 111 is a plate member having substantially the same shape as the fixing cover 54 of the first embodiment, and is formed to extend along a corner portion of the inner box 14. In this embodiment, the adjacent 2 heat-insulating walls 31 are, in this case, the left heat-insulating wall 314 and the back heat-insulating wall 315, and are fixed to the fixture 111 by screws not shown. That is, the adjacent 2 heat insulating walls 31 are connected and fixed by the fixture 111.

The fixture 111 has 2

extensions

112, 113. The extending

portions

112 and 113 are provided at both ends of the fixture 111 in the width direction, which is the shorter direction. The extending

portions

112, 113 are formed to extend so as to face the left inner panel 25 of the left side heat-insulating wall 314 and the back inner panel 26 of the back side heat-insulating wall 315, which are the adjacent inner panels 22 to 26 in this case. That is, the extending portion 112 extends along the left inner panel 25 toward the front side of the heat insulating box 12. The extension 113 extends along the back inner panel 26 toward the right side of the insulation box 12.

In this case, the surface of the extension portion 112 extending toward the rear-side heat-insulating wall 315 on the left-side inner panel 25 side is perpendicular to the surface of the extension portion 113 extending toward the left-side heat-insulating wall 314 on the rear-side inner panel 26 side. Therefore, when the adjacent left heat-insulating wall 314 and back heat-insulating wall 315 are coupled and fixed by the fixture 111, the angle of the adjacent wall formed by the left heat-insulating wall 314 and the back heat-insulating wall 315 is defined to be 90 °. In this case, the extending

portions

112 and 113 of the fixture 111 function as angle holding portions.

Between the extending

portions

112, 113 and the adjacent

inner plates

25, 26 of the inner box 14, a fourth seal member 114 is provided. The fourth seal member 114 is configured similarly to the

second seal members

72 and 112.

In addition, in the triangular prism-shaped space formed by the corner portion of the inner box 14 and the fixture 111, in this case, the space formed by the left inner panel 25, the back inner panel 26, and the fixture 111 and having a triangular cross section in the horizontal direction, the second corner heat insulating member 115 is provided. In this case, the second corner heat insulating member 115 is covered with the fixture 111. The second corner heat insulating member 115 is formed of a heat insulating member such as styrofoam and is formed in a triangular prism shape.

The second corner heat insulating member 115 has a receiving portion 116. The receiving portion 116 is formed by recessing the second corner heat insulating member 115 in a concave shape with respect to the left inner panel 25 side. The receiving portion 116 extends in the longitudinal direction of the second corner heat insulating member 115. The electric wire 52 is disposed inside the housing portion 116, and is held by the housing portion 116. In this case, the housing portion 116 functions as a holding portion for holding the electric wire 52.

According to the above configuration, even by using the fixture 111 having no reinforcing member, the adjacent 2 heat insulating walls 31 can be connected and fixed.

The fixture 111 has

extensions

112, 113 whose extension planes are perpendicular to each other. Therefore, the angle of the adjacent inner plates of the inner box 14 is maintained at 90 °. This enables the heat insulating box 12 as the inner box 14 to be formed in a rectangular parallelepiped shape.

Between the

extensions

112, 113 and the heat insulating wall 31, a fourth sealing member 114 is provided. Therefore, it is possible to suppress leakage of the cold air in the storage room to the outside of the heat insulating box 12 and inflow of the warm air outside the heat insulating box 12 into the storage room.

The electric wire 52 is housed in the housing portion 116 of the second corner heat insulating member 115. Therefore, the wires 52 can be prevented from being deviated from the predetermined positions as much as possible.

(third embodiment)

Next, a third embodiment will be described with reference to fig. 35. The structure of the corner portion on the right-rear side of the inner box 14 described in the third embodiment can be applied to other corner portions.

In the third embodiment, as shown in fig. 35, the heat insulating member 120 includes a first heat insulating member 121 and a second heat insulating member 122. The first thermal insulation member 121 includes a vacuum thermal insulation panel. The first heat insulating member 121 is disposed to be bonded to the outer surface side of the inner plates 22 to 26 of the inner box 14. The second heat insulating member 122 includes a member having a higher thermal conductivity than the first heat insulating member 121, in other words, a member having a lower thermal insulating performance than the first heat insulating member 121. For example, the second heat insulating member 122 is a foam heat insulating material such as a soft tape or polyurethane.

The second heat insulating member 122 is located between the outer case 13 and the inner case 14 and covers the periphery of the first heat insulating member 121. In this case, the second heat insulating member 122 is disposed in a space other than the space in which the first heat insulating member 121 is disposed, among the spaces in which the heat insulating members 120 are housed. That is, the second heat insulating member 122 is also provided at a corner portion of the heat insulating box body 12, that is, at a portion corresponding to the third sealing member 73 in the first embodiment. In this case, the first heat insulating member 121 occupies 50% or more, more preferably 80% or more, of the total volume of the space in which the heat insulating member 120 is housed.

That is, the volume of the second heat insulating member 122 is set smaller than the volume of the first heat insulating member 121. As shown in fig. 35, the thickness of the first heat insulating member 121 is T₁T represents the plate thickness of the second heat insulating member 122₂And the outer diameter of the pipe 53 is set to T₃Then becomes T₁＞T₃＞T₂. Thickness of the plate as referred to hereinThe thickness of the insulating wall 31 in the horizontal cross section is the thickness of the outer casing 13 and the inner casing 14 in the cross section direction. That is, the thickness of the second heat insulating member 122 means the distance from the first heat insulating member 121 to the inner surface of the outer box 13 facing the first heat insulating member 121, for example, the right outer panel 18 in fig. 35. In addition, the thickness of the foam insulation is the thickness after curing.

According to the above configuration, a refrigerator using both the first heat insulating member 121 and the second heat insulating member 122 can be obtained. In this case, the electric wires 52 and the pipes 53 are also provided at the rear corner of the storage space of the heat insulation box 12. Also, the volume of the first heat insulating member 121, which is superior in heat insulating effect to the second heat insulating member 122, is increased. This makes it possible to obtain high heat insulation performance while reducing the wall thickness of the heat insulation box 12, and as a result, a sufficient storage space can be ensured.

That is, if a space for accommodating the pipe 53 is secured inside the heat insulating wall 31, for example, between the first heat insulating member 121 and the outer box 13, the thickness T of the first heat insulating member 121 needs to be reduced₁Or the plate thickness T of the second heat insulating member 122 is increased₂. The former causes a decrease in the heat insulating performance of the heat insulating box body 12, and the latter causes an increase in the thickness dimension of the heat insulating wall 31 to reduce the housing space. Therefore, in the present embodiment, the piping 53 is housed in the rear of the interior of the storage room, in this case, in the corner portion on the right-rear side of the inner box 14. Thus, the heat insulating box body 12 does not need to reduce the plate thickness T of the first heat insulating member 121₁Therefore, excellent heat insulating performance can be obtained. Further, the heat insulating box body 12 does not need to increase the plate thickness T of the second heat insulating member 122₂Therefore, a sufficient storage space can be secured without increasing the thickness of the heat insulating wall 31.

That is, as shown in the present embodiment, the pipe 53 has an outer diameter T₃Is thicker than the plate thickness T of the second heat insulating member 122₂In a large case, the pipe 53 cannot be housed inside the heat insulating wall 31, particularly between the first heat insulating member 121 and the outer box 13. In this case, the pipe 53 can be accommodated in the accommodating space, for example, the inside of the storage room, and the plate thickness T of the first heat insulating member 121 can be set to be larger₁Is thicker than the plate thickness T of the second heat insulating member 122₂The size is large, and the heat insulating performance of the heat insulating box 12 can be improved.

By using a vacuum insulation panel as the first insulation member 121, good insulation performance can be obtained. Further, even in the vacuum insulation panel having a small plate thickness, the heat insulation effect is excellent, so that the wall of the heat insulation box 12 can be made thin and the storage space can be sufficiently secured.

By using a foam heat insulator, polyurethane in this case, as the second heat insulating member 122, the space between the first heat insulating members 121, the space between the first heat insulating member 121 and the outer box 13, and the space between the first heat insulating member 121 and the inner box 14 can be filled. This can improve the heat insulating effect of the entire heat insulating box 12.

In addition, the outer diameter of the pipe 53 is T₃Although the explanation has been given, the outer diameter of the electric wire 52, i.e., the bundle of a plurality of electric wires, may be T at the corner portion on the left and rear sides of the inner box 14₃。

(other embodiments)

The electric wire 52 and the pipe 53 are provided at the corner of the inner box, but the present invention is not limited thereto, and the following configuration may be adopted: a member other than the electric wire 52 and the piping 53 such as a hose is provided, and the member is covered with the fixture 51.

The fixture 51 is divided into a plurality of parts in the longitudinal direction. However, when the fixture 51 is provided at a corner portion having no partition member and/or a corner portion having a short length, for example, it may not be divided into a plurality of parts in the longitudinal direction.

The anchor 51 of the first embodiment may have the extending

portions

112 and 113 of the anchor 111 of the second embodiment. In this case, the fourth seal member 114 may be provided between the fixture 51 and the inner box 14 instead of the second seal member 72.

A part of the electric wires 52 and a part of the piping 53 may be disposed between the second partition member 38 and the back inner panel 26 along the rear end edge portion of the second partition member 38 in the left-right direction. A part of the electric wire 52 and a part of the pipe 53 may be arranged to extend in the front-rear direction or the left-right direction along the edge of the first partition member 37.

The surface partition 45 may be made of vacuum insulation panels, polyurethane, styrofoam, or the like. The surface partition portion 45 may be configured to sandwich the heat insulating member from above and below by a resin or metal plate.

The partition reinforcement plate 442 may be omitted as long as the partition plate 441 has sufficient strength.

The adjacent 2 heat insulating walls 31 may be connected and fixed by screws or the like in addition to the connection and fixation by the

fixtures

51 and 111 in the above embodiments.

The above-described procedure for assembling the heat insulating box 12 is merely an example, and may be changed as described below. For example, the

fixtures

51 and 111 are attached to the back-side heat-insulating wall 315, and then the right-side heat-insulating wall 313 or the left-side heat-insulating wall 314 is attached to the

fixtures

51 and 111.

The sealing

members

71, 72, 73, 101, 102, and 114 are not limited to the soft tape, and silicone sealant (silicone sealant) or the like may be used.

The second corner heat insulating member 115 may be provided at a corner portion on the right-rear side of the inner box 14, and the pipe 53 may be housed inside the housing portion 116 of the second corner heat insulating member 115.

The refrigerator 11 may be provided with a spray unit. The mist spray unit sprays mist generated by electrostatic atomization to the inside of the storage room. The diameter of the mist is preferably 1 to 1000 nm. In this case, by providing the

fixtures

51 and 111 at the corner portions formed by the adjacent 2 heat insulating walls 31, it is possible to suppress the mist from escaping from between the adjacent heat insulating walls 31 to the outside of the refrigerator.

The

fixtures

51, 111 may be formed integrally with one inner plate of the inner box 14.

The heat insulating walls 31 may be formed in the shape of L or U when viewed from the side or top, that is, the

fixture

51, 111 may fix the divided heat insulating walls other than the plate-like walls 31 to each other, or may fix the divided heat insulating walls other than the plate-like walls to each other.

The vacuum insulation panel, which is the first insulation member 15 of the insulation wall 31, does not necessarily have to be provided integrally with the inner panel of the inner box 14, but may be provided integrally with the outer panel of the outer box 13. That is, the first heat insulating member 15 may be provided so as to be in contact with one of the inner panel of the inner box 14 and the outer panel of the outer box 13.

The heat insulating box body 12 may be assembled, for example, as described below, by first forming the box-shaped inner box 14 by fastening and fixing the inner plates 22 to 26 by the fastening tool 51, and by previously attaching the first heat insulating member 15 to the outer box 13 separately from the inner box 14, and then by attaching the inner box 14 to a member in which the outer box 13 and the first heat insulating member 15 are integrated, the heat insulating box body 12 is formed, and in this case, the inner plates constituting the inner box 14 are not limited to a flat plate shape, and may be formed into, for example, an L shape as viewed from the top.

The communication hole 211a is preferably a slit opened on the rear end side of the upper heat insulating wall 311. Thus, the electric wire 52 and the pipe 53 can be arranged to pass through the opening of the communication hole 211a from behind the rear end portion of the upper heat insulating wall 311. Therefore, the electric wire 52 and the pipe 53 do not need to pass through the communication hole 211a from below the separating portion 211, and the work is easy. In addition, if the communication hole 211a has the slit shape, it is not necessary to make the inner diameter of the communication hole 211a larger than the connecting portion 68 and the welded portion 99. Therefore, the inner diameter of the communication hole 211a can be reduced as much as possible.

In this case, after the right and left heat insulating walls 313, 314 and the back heat insulating wall 315 are fixed by the fixture 51, the wires 52 and the pipes 53 are inserted into the communication holes 211a, and the upper heat insulating wall 311 is attached. At this time, the communication hole 211a functions as a positioning portion for positioning the upper heat insulating wall 311 with respect to the right heat insulating wall 313, the left heat insulating wall 314, and the back heat insulating wall 315 integrated by the fixture 51. This facilitates assembly of the heat insulating box 12. The same applies to the bottom-side heat-insulating wall 312.

The communication hole 211a may not be located directly above the fixture 51, and may be located on the heat insulating member 15 of the back-side heat insulating wall 315, for example. This can shorten the slit shape of the communication hole 211a, and reduce leakage of the urethane foam from the communication hole 211a during filling of the urethane foam.

In this case, the upper end portion of the back-side heat-insulating wall 315, specifically, the space between the heat-insulating member 15 of the back-side heat-insulating wall 315 and the upper outer panel 16 of the upper heat-insulating wall 311 is defined as the separation portion 211, and the electric wire 52 and the pipe 53 are bent from the fixture 51 toward the back outer panel 20 of the back-side heat-insulating wall 315 and passed through the separation portion 211. Thus, the electric wire 52 and the pipe 53 can be inserted into the communication hole 211a of the heat insulating member 15 of the back-side heat insulating wall 315.

The bypass 531 of the pipe 53 may be housed in the machine room 21.

As described above, in the refrigerator according to the above embodiment, the electric wires and the pipes are provided in the housing space of the heat insulating box body and are not provided inside the heat insulating wall. Therefore, it is not necessary to consider securing a space for accommodating the electric wire and the piping inside the heat insulating wall. Thus, the thickness of the first heat insulating member having better heat insulating performance than the second heat insulating member can be increased as much as possible. As a result, the refrigerator has excellent heat insulation performance and can sufficiently secure an in-box space.

Several embodiments of the present invention have been described, but these embodiments are presented as examples and are not intended to limit the scope of the invention. These new embodiments may be implemented in other various forms, and various omissions, substitutions, and changes may be made without departing from the spirit of the invention. These embodiments and/or modifications thereof are included in the scope and/or gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

Claims

1. A refrigerator is provided with:

a heat insulation box body formed in a box shape by a heat insulation wall and having an accommodating space on the inner side of the box shape; and

an electric wire or a pipe provided in the housing space,

the inside of the heat insulating wall is configured by arranging a first heat insulating member in contact with the outer panel and the inner panel, or by arranging the first heat insulating member and a second heat insulating member having lower heat insulating performance than the first heat insulating member,

the heat insulation box body has:

a machine chamber provided outside the housing space; and

separation portions formed between the first heat insulating members respectively provided to the adjacent heat insulating walls,

the electric wire or the pipe is guided to the machine chamber through the separation portion.

2. The refrigerator of claim 1, wherein:

the electric wire or the pipe is provided at a rear portion of the housing space.

3. The refrigerator of claim 1, wherein:

the electric wire or the pipe is provided at a corner of the heat insulating box.

4. The refrigerator of claim 1, wherein:

further, the electric wire or the pipe is covered with a cover.

5. The refrigerator of claim 1, wherein:

the heat insulation box body is formed by combining a plurality of heat insulation walls;

and a fixing tool for connecting and fixing the adjacent heat insulation walls.

6. The refrigerator of claim 1, wherein:

the first heat insulating member has a volume larger than that of the second heat insulating member.

7. The refrigerator of claim 1, wherein:

the second heat insulating member has a thickness smaller than an outer diameter of the electric wire or the pipe.

8. The refrigerator of claim 1, wherein:

the second insulation member is foam insulation.

9. The refrigerator according to any one of claims 1 to 8, wherein:

the first thermal insulation member is a vacuum thermal insulation panel.