CN106871538A - Refrigerator - Google Patents

Abstract

Provided is a refrigerator that is excellent in heat insulation performance and can sufficiently secure a space in the box. The refrigerator is provided with an insulating box (12) and electric wires (52) or piping (53). The heat insulating box (12) is formed in a box shape, and has a storage space inside the box shape. The heat insulating wall constituting the heat insulating box (12) is constituted by sandwiching a first heat insulating member (15) with a shape between the outer plate (13) and the inner plate (14), or between the outer plate and the inner plate It is constructed by sandwiching the first thermal insulation member and filling the second thermal insulation member (151) which can be filled. The electric wire (52) or the pipe (53) is installed in the storage space.

Description

refrigerator

This patent application is a divisional application of the patent application with the application number 201280037089.8, the application date being May 11, 2012, and the invention name being "refrigerator".

technical field

Embodiments of the present invention relate to refrigerators.

Background technique

In recent years, in refrigerators, in order to increase the capacity of the space inside the refrigerator, it is required to reduce the thickness of the heat-insulating wall of the heat-insulating box. Therefore, it is conceivable to use a vacuum insulation panel as the insulation member of the insulation wall. The vacuum insulation panel is superior to conventionally used urethane foam in terms of heat insulation performance, so the insulation wall can be thinned, and as a result, the space inside the box can be increased.

Here, in the conventional configuration using polyurethane foam as the heat insulating member, for example, pipes constituting the refrigeration cycle and/or wires connected to electrical components inside the box are located inside the heat insulating wall and embedded in the polyurethane foam.

However, when a vacuum insulation panel is used as a heat insulating member, since the vacuum insulation panel has formability, it is necessary to reduce the thickness of the vacuum insulation panel or increase Thick insulated walled self. In this case, the former leads to a decrease in thermal insulation performance, and the latter leads to a reduction in the space inside the box.

prior art literature

patent documents

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

Contents of the invention

The problem to be solved by the invention

Therefore, there is provided a refrigerator that is excellent in thermal insulation performance and can sufficiently secure an interior space.

Technical solutions for solving problems

The refrigerator according to the embodiment includes a heat insulating box and electric wires or piping. The heat insulating box is formed in a box shape, and has a storage space inside the box shape. The heat insulating wall constituting the heat insulating box is constituted by sandwiching a first heat insulating member having a shape between an outer plate and an inner plate, or by sandwiching the first heat insulating member between the outer plate and the inner plate. An insulating member is filled with a second insulating member capable of being filled. The electric wire or the pipe is provided in the accommodation space.

Description of drawings

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

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

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

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

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

Fig. 6 is a cross-sectional plan view schematically showing the refrigerator compartment 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 the right portion of the front side of the heat insulating box.

Fig. 9 is a cross-sectional plan view schematically showing the left back corner of the heat insulating box.

Fig. 10 is a perspective view showing an attached state of a fixing tool provided at the left inner corner of the heat insulating box.

Fig. 11 is a perspective view showing a state before a fixing tool is attached to the left back corner of the heat insulating box.

Fig. 12 is a perspective view of a fixture provided at a left inner corner of the heat insulating box.

Fig. 13 is a front view of a fixture provided at a left inner corner of the heat insulating box.

Fig. 14 is an exploded perspective view of a fixing tool provided at a left inner corner of the heat insulating box.

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

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

Fig. 17 is a sectional view 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 (Part 1) showing the mounting state of the fixture provided at the left back corner of the heat insulating box.

Fig. 21 is a cross-sectional plan view (Part 2) showing the state of attachment of the fixture provided at the left back corner of the heat insulating box.

Fig. 22 is a cross-sectional plan view schematically showing the right back corner of the heat insulating box.

Fig. 23 is a perspective view showing a mounted state of a fixing tool provided at the right back corner of the heat insulating box.

Fig. 24 is a perspective view showing a state before a fixing tool is attached to the right back corner of the heat insulating box.

Fig. 25 is a perspective view of a fixing tool provided at the right back corner of the heat insulating box.

Fig. 26 is a front view of a fixing tool provided at a right back corner of the heat insulating box.

Fig. 27 is an exploded perspective view of a fixing tool provided at the right back corner of the heat insulating box.

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 cross-sectional view along line I-I of Fig. 26 .

Fig. 32 is a longitudinal front view showing the vicinity of the right end portion 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 of the second embodiment.

Fig. 35 is a diagram corresponding to Fig. 22 showing a heat insulating member according to a third embodiment.

detailed description

Hereinafter, refrigerators according to several embodiments will be described with reference to the drawings. In addition, in each embodiment, the same code|symbol is attached|subjected to the structural part which is substantially the same, and description is abbreviate|omitted.

(first embodiment)

Next, a first embodiment will be described with reference to FIGS. 1 to 33 .

Refrigerator 11 includes heat insulating box 12 shown in FIG. 2 and a refrigeration cycle (not shown) for cooling in heat insulating box 12 . As shown in FIGS. 3 to 6 , the heat insulating box 12 is formed in a box shape with one surface opened. In addition, in this specification, let the opening side of the heat insulation box 12 be the front side of the refrigerator 11, and let the left-right direction of the paper surface of FIG. 2 be the left-right direction of the refrigerator 11.

The heat insulating box 12 is configured as a box including an outer case 13 , an inner case 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 case 13 and the inner case 14 as shown in FIG. 5 . The first heat insulating member 15 is a plate-shaped heat insulating member and has shapeability. That is, the first heat insulating member 15 is configured so that it cannot be deformed unless some kind of processing is applied.

Inside the inner box 14, for example, a storage space such as a storage room and/or a space for installing ducts as necessary are formed. The outer case 13 is made of, for example, stainless steel, and is configured in a box shape with an open front. The outer case 13 constitutes the outer surface of the heat insulating box 12 . The outer case 13 is configured by combining a plurality of divided outer panels, as shown in FIGS. 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 the upper outer surface of the heat insulating box 12 . The upper outer panel 16 is formed in a stepped shape in which the rear is located lower than the front. The bottom outer panel 17 constitutes the bottom outer surface of the heat insulating 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 left and right outer surfaces of the heat insulating box 12 . The right outer panel 18 and the left outer panel 19 are formed bilaterally symmetrically. The back outer panel 20 is formed in a substantially flat shape, and is provided on the back of the heat insulating box 12 . The back outer panel 20 constitutes the back outer surface of the heat insulating box 12 .

A machine room 21 is formed on the rear upper side of the upper outer panel 16 as shown in FIGS. 3 to 5 . In the machine room 21, a compressor and the like constituting a refrigeration cycle not shown are provided. At a position corresponding to the bottom surface of the machine room 21 , as shown in FIG. 5 , an upper side separating portion 211 is formed. The upper side separation portion 211 is an opening formed by providing a gap between adjacent first heat insulating members 15 . In the present embodiment, the upper side separating portion 211 is formed by separately disposing the first heat insulating member 15 located on the upper side of the heat insulating box 12 and the first heat insulating member 15 located on the back side.

The second heat insulating member 151 is provided inside the upper separation portion 211 . The second heat insulating member 151 is, for example, a foam heat insulating material other than a vacuum heat insulating panel such as polyurethane foam. The second heat insulating member 151 has fluidity when the heat insulating wall 31 is manufactured, and can be filled into the heat insulating wall 31 . Furthermore, if the second heat insulating member 151 is filled inside the heat insulating wall 31, it will exhibit heat insulating performance after being foamed and hardened. The upper side separating portion 211 has a communication hole 211 a extending in the vertical direction. The communication hole 211a is formed through the second heat insulating member 151 and the upper inner panel 22 in the vertical direction. In addition, the communicating hole 211a may be a slit.

A component storage chamber 212 is formed on the lower rear side of the heat insulating box 12 . In the component storage chamber 212, for example, a condenser of a refrigeration cycle and/or components used for controlling refrigeration and freezing are stored. A lower side separating portion 213 is formed at a position corresponding to the component storage chamber 212 . The lower side separating portion 213 is formed by separately arranging the first heat insulating member 15 located on the bottom side of the heat insulating box 12 and the first heat insulating member 15 located on the back side. The second heat insulating member 151 that can be filled is also provided in the lower side separation portion 213 . The lower side separating portion 213 has a communication hole extending in the up-down direction, although not shown in detail. The communication hole is formed through the second heat insulating member 151 and the bottom inner panel 23 in the vertical direction. In addition, the communication hole can also be a slit

The inner box 14 is made of resin, and is formed in a box shape with an open front. The inner case 14 is provided inside the outer case 13 and constitutes an inner surface of the heat insulating box 12 . The inner box 14 is constructed by combining a plurality of divided inner panels, as shown in FIGS. 1 and 3 to 6 . 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 the upper inner surface of the heat insulating box 12 . Like the upper outer panel 16 , the upper inner panel 22 is formed in a stepped shape in which the rear is located lower than the front. The bottom inner panel 23 constitutes the bottom inner surface of the heat insulating 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 left and right inner surfaces of the heat insulating box 12 . In this case, the right inner panel 24 and the left inner panel 25 are formed bilaterally symmetrically. The back inner panel 26 is formed in a substantially flat shape, and is provided on the back of the heat insulating box 12 . The back inner panel 26 constitutes the back inner surface of the heat insulating box 12 .

On the right inner panel 24 , the left inner panel 25 , and the back inner panel 26 , as shown in FIGS. 1 , 11 , and 24 , a plurality of support members 27 are respectively provided. The plurality of support members 27 are located on the right inner panel 24, the left inner panel 25, and the back inner panel 26, and are arranged side by side in the vertical direction. The supporting member 27 is made of resin, for example, and is mainly composed of a rectangular parallelepiped block as shown in FIGS. 20 and 21 . The support member 27 has a screw hole 271 and a flange portion 272 .

The support member 27 passes through the opening 28 formed in the inner panels 24 , 25 , and 26 and protrudes toward the storage compartment. The screw holes 271 are formed from the storage compartment side toward the inner panels 24 , 25 , and 26 sides. A female thread is formed inside the threaded hole 271 . The flange part 272 is formed in the plate shape larger than the main body of the support member 27, and is provided in the side opposite to a storage room with respect to the inner board 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 panels 24 , 25 , and 26 . In this case, the flange part 272 functions as a fall-off prevention member which suppresses the support member 27 from coming off from the opening part 28 toward the storage compartment. In addition, the support member 27 may be integrally formed with the inner panels 24 , 25 , and 26 . In addition, the support member 27 may have a configuration in which 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 Fig. 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 face each other via the first heat insulating member 15 . That is, between the outer case 13 and the inner case 14, the 1st heat insulating member 15 is provided corresponding to each wall surface.

The first heat insulating member 15 includes a member having lower heat conductivity than a foam heat insulating material such as polyurethane and/or a soft tape and having excellent heat insulating performance, for example, a flat vacuum heat insulating panel. The first heat insulating member 15 is not shown in detail, but has a core material and an outer bag for accommodating the core material. The core material is formed by storing a laminate of highly heat-insulating materials such as inorganic fibers such as glass wool in a synthetic resin film inner bag such as polyethylene, and then compressing and hardening it into a rectangular plate shape. In addition, the core material can also be formed by, for example, a papermaking method, a heating compression method, or the like.

The outer bag body is formed into a bag shape from, for example, a polytetrafluoroethylene film, a high-density polyethylene film, an aluminum vapor-deposited film, or a laminated film of an appropriate combination of aluminum foil sheets. The outer bag body is airtight. The first heat insulating member 15 is constituted by decompressing the inside of the outer bag with the core material housed in the outer bag, and sealing the opening of the outer bag by heat sealing or the like while maintaining the reduced pressure. .

One surface of the first heat insulating member 15 is bonded to the outer surface of the inner case 14 , which is the outer panel, and the other surface is bonded to the inner surface of the outer case 13 , which is the inner panel. In this way, the first heat insulating member 15 provided inside the wall constituting the heat insulating box 12 abuts against the outer plates 16 to 20 and the inner plates 22 to 26 , respectively. As shown in FIG. 7 , at the left side portion of the heat insulating box 12 , the first heat insulating member 15 is sandwiched between a left outer panel 19 and a left inner panel 25 opposed to the left outer panel 19 . The first heat insulating member 15 is bonded to the left outer panel 19 with an adhesive 29 . In addition, the first heat insulating member 15 is bonded to the left inner panel 25 with an adhesive 30 . The adhesives 29 and 30 are, for example, liquid adhesives, double-sided tapes, or the like. In addition, the support member 27 is bonded to the first heat insulating member 15 with an adhesive 30 .

In this way, the plurality of heat insulating walls 31 include the outer plates 16 to 20, the inner plates 22 to 26 facing the outer plates 16 to 20, and the first heat insulating members 15 corresponding to these outer plates 16 to 20 and the inner plates 22 to 26. And the heat insulation box 12 is comprised by combining these several heat insulation walls 31. As shown in FIG. In addition, the heat insulating wall 31 may also be called a divided heat insulating panel. The heat insulating wall 31 includes five heat insulating walls 31 , an upper heat insulating wall 311 , a bottom 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 forms the upper wall of the heat insulating box 12, the bottom side heat insulating wall 312 forms the bottom wall of the heat insulating box 12, the right heat insulating wall 313 forms the right wall of the heat insulating box 12, and the left side The heat insulating wall 314 constitutes the left side wall of the heat insulating box 12 , and the back side heat insulating wall 315 constitutes the back side wall of the heat insulating box 12 . In this case, the right heat insulating wall 313 and the left heat insulating wall 314 have bilaterally symmetrical shapes and are arranged facing each other.

Here, the front ends of the right heat insulating wall 313 and the left heat insulating wall 314 forming the left and right walls of the heat insulating box 12 will be described with reference to FIGS. 3 , 4 and 8 . In addition, the right heat insulating wall 313 and the left heat insulating wall 314 are formed bilaterally symmetrically. Therefore, the description of the left heat insulating wall 314 will be omitted through the description of the right heat insulating wall 313 . The right heat insulating wall 313 has, as shown in FIGS. 3 and 4 , bent portions 32 at two locations near the center and the lower portion in the vertical direction at the front end. In addition, since the two bent portions 32 have the same configuration, the bent portion 32 provided at the center portion in the vertical direction of the front end portion of the right heat insulating wall 313 will be described.

The bending portion 32 is formed into the following shape as shown in FIG. Fold back right outside. That is, the bent portion 32 has two flat portions 321 extending in the left-right direction and a curved portion 322 connecting the two flat portions 321 . The two flat portions 321 substantially face each other and are 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 open to the right outer side of the outer case 13 when viewed from above. In addition, the bent portion 322 is provided at a position in front of the right inner panel 24 and substantially overlapping the right inner panel 24 in the left-right direction. In this case, the top end of the flat portion 321 is bent so as not to be located outside the heat insulating box 12 .

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

The heat insulating box 12 has a first partition member 37 and a second partition member 38 inside the inner box 14 as shown in FIGS. 3 and 4 . The first partition member 37 is provided inside the inner box 14 at a central portion in the vertical direction. The second partition member 38 is provided below the first partition member 37 . The first partition member 37 and the second partition member 38 partition the inside of the inner box 14 in the vertical direction. Thus, the storage room formed inside the inner box 14 is divided into a plurality to form a plurality of compartments.

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

Refrigerator 11 includes refrigerator compartment door 391 , vegetable compartment door 401 , ice compartment door 411 , first freezer compartment door 421 , and second freezer compartment door 431 as shown in FIG. 2 . Refrigerator compartment door 391 is pivotable and is provided at the front opening of refrigerator compartment 39 . The vegetable compartment door 401 is a drawer type and is provided at the front opening of the vegetable compartment 40 . Similarly, the ice-making compartment door 411, the first freezing compartment door 421, and the second freezing compartment door 431 are drawer-type and are respectively arranged on the front openings of the ice-making compartment 41, the first freezing compartment 42, and the second freezing compartment 43. .

Next, the first partition member 37 and the second partition member 38 will be described. In addition, since the first partition member 37 and the second partition member 38 have substantially the same configuration in appearance, the first partition member 37 will be described as a representative with reference to FIG. 8 . In addition, since the 1st partition member 37 has a bilaterally symmetrical shape, the structure of the right side is demonstrated.

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

The partition reinforcing plate 442 is a metal plate and 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 . In addition, the left-right dimension of the partition reinforcement plate 442 is set to be longer than the left-right dimension of the partition plate 441 . Furthermore, the thickness of the partition reinforcing plate 442 is set to be equal to or equal to that of the partition plate 441 . Both left and right end portions of the partition reinforcement plate 442 are bent toward the rear side, and are provided so as to be in contact with the rear surface of the partition plate 441 , that is, the back surface. The partition reinforcing plate 442 is provided when the tensile strength of the partition plate 441 is small. The right end portion of the partition plate 441 is sandwiched between the right end portion of the partition reinforcement plate 442 and the bent portion 32 of the right outer panel 18 when the end portion of the right heat insulating wall 313 is inserted into the chamber 34 . The same applies to the left end portion of the partition plate 441 . In addition, the front surface of the partition plate 441 is configured so that the front surface of the bent portion 32 is located on the same plane.

The right end portion of the partition reinforcement plate 442 is bent to have an L-shaped 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 toward the rear side along the shape of the corner of the right front portion of the right outer panel 18 . The same applies to the left end portion of the partition plate 441 . The partition reinforcement plate 442 has three screw holes 446 at the right end. A female screw is formed inside the screw hole 446 . The three screw holes 446 respectively correspond to the through holes 445 formed in the partition plate 441 . A screw 46 is provided in the rightmost threaded hole 446 among the three places. The screw 46 passes through the through hole 35 of the right outer panel 18 and the through hole 445 of the partition plate 441 . Screws 47 are provided in the remaining two screw holes 446 of the partition reinforcement plate 442 . The screws 47 pass through the through holes 445 of the partition plate 441 . Thus, the right end portion of the partition plate 441 and the right end portion of the partition reinforcement plate 442 are connected and fixed to the bent portion 32 of the right outer panel 18 .

In addition, although the detail is not shown in figure, the left end part of the partition board 441 and the left end part of the partition reinforcement board 442 are also comprised similarly to the above-mentioned right end part. That is, the left end portion of the partition plate 441 and the left end portion of the partition reinforcement plate 442 are connected and fixed to a not-shown bent portion of the left outer panel 19 which is the left heat insulating wall 314 . In this case, the partition plate 441 functions as a connection member that connects and fixes the right heat insulating wall 313 and the left heat insulating wall 314 at the opening side of the front surface of the heat insulating box 12 . In addition, the bent portion 32 functions as a connected member.

The partition cover 443 is made of metal and formed in a horizontally long box shape with an open front side. The partition cover 443 constitutes the outer peripheral wall of the cuboid of the front partition 44 together with the partition plate 441 . The partition cover 443 is supported by the supporting member 27 . In this case, the partition cover 443 has an unillustrated attachment portion on its lower portion, and the attachment portion is fixed to the support member 27 with an unillustrated screw. In the cuboid 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 heat insulating members such as foamed styrene and/or polyurethane, and is formed in a rectangular parallelepiped shape.

As shown in FIGS. 3 and 4 as well, the surface partition portion 45 is formed of a resin member in a rectangular plate shape as a whole. The surface partition part 45 of the second partition member 38 among the first partition member 37 and the second partition member 38 has a heat insulating member such as a vacuum heat insulating panel inside. Thereby, the surface partition part 45 of the 2nd partition member 38 has heat insulation. The surface partition 45 is placed on the support member 27 and held. In addition, the surface partition 45 is provided such that the front end thereof contacts the back surface of the front partition 44 , and the left and right end portions contact 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 45 and the back inner panel 26 . Thereby, refrigerator compartment 39 communicates with vegetable compartment 40 . On the other hand, the second partition member 38 is provided such that the rear end portion of the surface partition 45 is in contact with the back inner panel 26 . Thereby, refrigerator compartment 39 and vegetable compartment 40 are thermally insulated from ice-making compartment 41 , first freezer compartment 42 , and second freezer compartment 43 .

As shown in FIG. 1 and FIGS. 3 to 6 , the heat insulating wall 31 is connected and fixed to other adjacent heat insulating walls 31 via fixing tools 51 . In this case, the fixtures 51 are provided at the following corners of the inner box 14: the corner formed by the upper inner panel 22 and the right inner panel 24; the corner formed by the upper inner panel 22 and the left inner panel 25. the corner formed by the upper inner panel 22 and the back inner panel 26; the corner formed by the bottom inner panel 23 and the right inner panel 24; the corner formed by the bottom inner panel 23 and the left inner panel 25; The corner portion formed by the panel 23 and the back inner panel 26 . In other words, the fixing tool 51 is fixed at a position facing the adjacent and separated two first heat insulating members 15 .

In one corner of the rear of the inner box 14 , for example, the left back corner formed by the left inner panel 25 and the back inner panel 26 , as shown in FIGS. 6 and 9 , an electric wire 52 is arranged. The electric wire 52 extends along this corner. The electric wire 52 is an electric power supply wire and a signal wire for connecting the blower fan and/or various sensors to the control device, although not shown in detail. The electric wire 52 is arranged by bundling a plurality of electric wires. In addition, the electric wire 52 in the state which bundled many electric wires so that a cross section may be circular is shown in drawing.

The other corner of the rear of the inner box 14, that is, the corner different from the corner where the electric wire 52 is provided, is the right inner corner formed by the left inner panel 25 and the back inner panel 26, as shown in FIG. 6 and FIG. 22, piping 53 is arranged. The pipe 53 extends along this corner. The piping 53 is a suction pipe etc. which connect the refrigerating and freezing evaporators which are not shown in figure, and a compressor. In this case, two pipes 53 are provided in parallel, and one pipe 53 flows the refrigerant for refrigeration, and the other pipe 53 flows the refrigerant for freezing.

Here, the piping 53 is connected to coolers for refrigeration and freezing. Moreover, the electric wire 52 is connected to the ventilation fan which is not shown in figure. The blower fan supplies and circulates cold air generated by the evaporator into the storage compartment. The blower fan is preferably arranged between the fixtures 51 on the left and right sides in the storage room. In this case, a pipe for circulating cool air is provided between the fixtures 51 on the left and right sides, though not shown in detail. The tube is preferably equal to or thinner than the fixture 51 in the front-rear direction.

The fixtures 51 provided at the corners of the inner box 14 are very similar in structure, so the fixtures 511 provided at the corners formed by the left inner panel 25 and the back inner panel 26 and the ones formed by the right inner panel 24 are facing below. The fixture 512 provided at the corner formed with the back inner panel 26 will be described. In addition, in the description of the fixing tool 512, the description about the same part as the fixing tool 511 will be omitted.

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

The fixture 511, as shown in FIGS. 1 , 9 and 10 , has a columnar shape that is vertically long as a whole, and has a right-angled triangle cross-section in the horizontal direction, that is, in the width direction. The fixture 511 extends in the vertical direction along the corner formed by the left inner panel 25 and the back inner panel 26 as shown in FIG. 10 . The fixture 511 includes a fixture cover 54 , a reinforcing member 55 , and a heat insulating member 56 for corners, as shown in FIGS. 12 to 14 . The fixing tool 511 is formed into a cylindrical shape with a right triangle in cross section by the fixing cover 54 and the reinforcing member 55 . The corner heat insulating member 56 is arranged inside the cylindrical shape formed by the fixed cover 54 and the reinforcing member 55 .

Specifically, the fixed cover 54 is formed of a resin member into a substantially rectangular plate shape elongated in the vertical direction. The fixing cover 54 constitutes an inclined surface among three surfaces constituting the right triangle cross section of the fixing tool 511 . The fixed cover 54 has a plurality of through holes 58 and openings 59 and 60 as shown in FIGS. 14 to 21 . 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 FIGS. 16 and 19 , through-holes 58 at both ends are formed by penetrating the fixed cover 54 toward the left heat insulating wall 314 or the rear heat insulating wall 315 side.

The through hole 58 is disposed as far as possible from the through hole 58 at the other end. That is, the through-holes 58 are arranged in a shifted manner such that the positions of the through-holes 58 located at the other end are different from each other in the vertical direction. 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 . Screws 57 are passed through the through holes 58 . 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 . The insertion direction of the screw 27 into the through hole 58 on the side of the back heat insulating wall 315 is perpendicular to the inner surface of the back heat insulating wall 315 , that is, the surface of the back inner panel 26 as shown in FIG. 16 .

As shown in FIG. 13 , the opening 59 is provided near the upper portion in the longitudinal direction of the fixed cover 54 , that is, in the vertical direction. The opening 60 is provided near the lower part of the fixed cover 54 in the vertical direction. The openings 59 and 60 communicate with the cylindrical inner side of the fixture 511 .

The reinforcing member 55 is made of resin. As shown in FIG. 14 , the reinforcement member 55 is formed in a shape in which two vertically long rectangular plates are butted against each other at right angles to each other in a longitudinal direction, a so-called L-shaped cross section. The reinforcement member 55 constitutes two surfaces other than the inclined surfaces among the three surfaces constituting the right triangle cross section of the fixture 511 . The reinforcing member 55 reinforces the fixing cover 54 and improves the strength of the fixing tool 511 . The length of the reinforcing member 55 in the longitudinal direction is set to be substantially the same size as the length of the fixed cover 54 in the longitudinal direction.

The reinforcing member 55 is arranged such that one surface faces the left inner panel 25 , that is, the left heat insulating wall 314 , and the other surface faces the rear inner panel 26 , that is, the rear heat insulating wall 315 . Thus, the reinforcing member 55 is disposed so as to straddle 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 rear heat insulating wall 315 . That is, since the first heat insulating member 15 is not provided at the corner portion where the adjacent heat insulating walls 31 are butted, the heat insulating performance thereof is lower than that of other portions of the heat insulating walls 31 . The fixture 511 is arranged at such a portion of the heat insulating wall 31 where the heat insulating performance is low.

As shown in FIGS. 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 reinforcement 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 corresponding to the through holes 58 of the fixing cover 54 .

The threaded hole 61 is configured to have a female thread on the inner side of a cylinder that is located on the reinforcement member 55 and protrudes toward the fixed cover 54 side. The axial direction of the threaded hole 61 coincides with the axial direction of the through hole 58 of the fixed cover 54 when the fixed cover 54 is attached to the reinforcing member 55 . The threaded hole 61 is used for setting the screw 57 .

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

As shown in FIG. 9 , the heat insulating member 56 for a corner is arranged so as 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 foamed styrene formed in a vertically long substantially triangular prism. The corner heat insulating member 56 has a plurality of cutouts 64 , two openings 65 and 66 , and a storage portion 67 .

The notch portion 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 cutouts 64 are arranged in a so-called zigzag shape along the longitudinal direction of the corner insulating member 56 so as not to interfere with the through holes 58 of the fixing cover 54 , the screw holes 61 of the reinforcement member 55 , and the screws 57 of the through holes 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 accommodating portion 67 is formed in a groove shape extending in the longitudinal direction at a right-angled portion on a cross section perpendicular to the longitudinal direction of the corner heat insulating member 56 , that is, a portion near a corner of the inner case 14 .

The electric wire 52 is housed inside the housing portion 67 . That is, the fixing tool 511 accommodates the electric wire 52 inside the cylindrical shape. The electric wire 52 is held so as not to deviate from a predetermined position by the inner surface of the housing portion 67 serving as a holding portion. In addition, the electric wire 52 is also held by the hook etc. which are not shown in figure. In this case, the part of the electric wire 52 provided inside the cylindrical shape of the fixture 511 cannot be seen from the opening side of the refrigerator 11 .

The fixing tool 511 is formed by connecting two parts at the height position of the second partition member 38 in the longitudinal direction, that is, the vertical direction, in this case, the upper fixing tool 511 and the lower fixing tool 511. of. Therefore, as shown in FIG. 1 , FIG. 12 , FIG. 13 and FIG. 14 , the fixed cover 54 includes two parts divided in the longitudinal direction of the fixed cover 54 , in this case, an upper fixed cover 541 and a lower fixed cover 542 . . With this configuration, handling of the fixed cover 54 becomes easy, and deformation such as twisting hardly occurs. In this case, the opening 59 is provided in the upper fixed cover 541 , and the opening 60 is provided in the lower fixed cover 542 .

Similarly, the reinforcing member 55 includes two 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 . Furthermore, the corner heat insulating member 56 also includes two parts 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 . Furthermore, 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 the upper fixing tool 511 . In addition, the lower fixing cover 542 , the lower reinforcement member 552 , and the lower corner heat insulating member 562 constitute the lower fixing tool 511 . On the left corner of the inner box 14 , the upper fixture 511 is placed on the refrigerator compartment 39 and vegetable compartment 40 sides, and the lower fixture 512 is placed on the ice maker 41 and first freezer compartment 42 sides.

Two screw holes 48 are provided at the lower end of the upper reinforcing member 551 . Furthermore, two through-holes 49 are provided at positions corresponding to the screw holes 48 at the upper end portion of the lower reinforcing member 552 . The upper reinforcement member 551 and the lower reinforcement member 552 are fixed by screwing the screw 50 passing through the through hole 49 into the threaded hole 48 .

Thus, the fixture 511 is comprised so that it can be divided into two in the longitudinal direction which is the direction extended along a corner part as a whole. In this case, as shown in FIGS. 12 and 13 , the lower end portion of the upper corner heat insulating member 561 is in contact with the upper end portion of the lower corner heat insulating member 562 . In addition, the lower end portion of the upper fixed cover 541 is separated from the upper end portion of the lower fixed cover 542 .

The electric wire 52 extends from the machine room 21 through the upper side separating portion 211 toward the refrigerator compartment 39 , and enters the storage portion 67 of the corner heat insulating member 56 from the upper end portion of the fixture 511 . Next, the electric wires 52 branch in two directions in the storage portion 67 . One side of the wire 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 refrigerator compartment 39 side. The other side of the electric wire 52 passes through the opening 66 of the lower corner heat insulating member 562, and extends from the opening 60 of the lower fixing cover 542 toward the first freezing compartment 42 side. In this way, the openings 59 and 60 are used to guide a part of the electric wires 52 housed inside the fixture 511 toward the storage compartment. In addition, 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 side separating portion 213 .

As shown in FIGS. 13 and 14 , the electric wire 52 has a connecting portion 68 at each end. These connection parts 68 are made of resin and are configured in a plug shape. The connecting portion 68 is connected to an electric wire (not shown) outside the fixture 511 , and is connected to electric components such as a control device and/or a blower fan via the electric wire.

As shown in FIG. 14 and FIGS. 16 to 19 , between the fixed cover 54 and the reinforcing member 55 , specifically, between the ends in the width direction of the fixed cover 54 and the ends in the width direction of the reinforcing member 55 , a There is a first sealing member 71 . The first sealing member 71 is a sheet-shaped member extending long along the longitudinal direction of the fixed cover 54 and the reinforcement member 55 , and includes, for example, a soft belt. The first sealing member 71 seals between the fixed cover 54 and the reinforcing member 55 . That is, the first sealing member 71 improves the airtightness between the fixed cover 54 and the reinforcing member 55 .

As shown in FIGS. 14 to 19 , second sealing members 72 are provided between the reinforcing member 55 and the left heat insulating wall 314 and between the reinforcing member 55 and the rear heat insulating wall 315 . The second sealing member 72 is a sheet-shaped member extending long along the longitudinal direction of the fixing cover 54 and the reinforcing member 55 and includes, for example, a soft belt. 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 rear heat insulating wall 315 . That is, the second seal member 72 improves airtightness between the reinforcing member 55 and the left inner panel 25 and between the reinforcing member 55 and the back inner panel 26 .

As shown in FIG. 9 , a third sealing member 73 is provided at an end portion of the heat insulating wall 31 , for example, a portion where the left heat insulating wall 314 and the back side heat insulating wall 315 butt against each other. The third sealing member 73 is a rectangular column-shaped member extending parallel to the longitudinal direction of the fixed cover 54 and the reinforcement member 55 , and includes, for example, a soft belt. The third sealing member 73 assists heat insulation in a space formed by the butted portion of the left heat insulating wall 314 and the back side heat insulating wall 315 , and suppresses entry of moisture-containing air or the like into the space. In addition, in FIGS. 20 and 21 , illustration of the third sealing member is omitted.

In this way, the fixing tool 511 is constituted by the fixing cover 54 and the reinforcement member 55 sandwiching the corner heat insulating member 56 . The corner heat insulating member 56 accommodates the electric wire 52 in the accommodation portion 67 . In the fixed cover 54 , screws 57 pass through the through holes 58 in a state where the ends in the width direction are brought into contact with the ends in the width direction of the reinforcing member 55 . The screw 57 passing through the through hole 58 is screwed into the threaded hole 61 of the reinforcing member 55 . Thus, the fixed cover 54 is fixed to the reinforcing member 55 . Furthermore, the fixing cover 54 is fixed to the reinforcing member 55 , whereby the corner heat insulating member 56 and the electric wire 52 are also fixed to the inside of the fixing tool 511 .

In this case, the fixed cover 54, the reinforcement member 55, the heat insulating member 56 for corners, and the electric wire 52 have an integrated structure. Furthermore, 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 . In this way, the divided portion of the fixture 511 is covered by the left rear end portion of the second partition member 38 .

In addition, the left heat insulating wall 314 and the rear heat insulating wall 315 are opposed to the reinforcement member 55 via the second sealing member 72 . Thereby, the adjacent left heat insulating wall 314 and the back side heat insulating wall 315 are connected and fixed by the fixing tool 511, and the angle formed by the left side heat insulating wall 314 and the back side heat insulating wall 315 is kept at right angles to the reinforcing member 55. part corresponding to 90°. That is, the reinforcing member 55 functions as an angle holding portion that holds the angle between the adjacent left heat insulating wall 314 and the back side heat insulating wall 315 at 90°.

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

As shown in FIG. 22 , FIG. 23 and FIG. 25 , the fixture 512 has a vertically long columnar shape as a whole, and a cross-section in the horizontal direction, that is, in the width direction, is formed as a right triangle. As shown in FIG. 23 , the fixture 512 extends in the vertical direction along the corner formed by the right inner panel 24 and the back inner panel 26 . As shown in FIGS. 25 to 27 , the fixing tool 512 includes a fixing cover 81 , a reinforcement member 82 , and a corner heat insulating member 83 . The fixing tool 512 is formed into a cylindrical shape having a right triangle in cross section by the fixing cover 81 and the reinforcing member 82 . The corner heat insulating member 83 is arranged inside the cylindrical shape formed by the fixed cover 81 and the reinforcing member 82 .

The fixed cover 81 has substantially the same configuration as the fixed cover 54 . Specifically, the fixed cover 81 is formed of a resin member into a substantially rectangular plate shape that is vertically long. The fixing cover 81 constitutes an inclined surface among three surfaces constituting the right triangle cross section of the fixing tool 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 to penetrate the fixed cover 81 toward the right heat insulating wall 313 or the rear heat insulating wall 315 , respectively.

The through-hole 84 is arranged in a shifted position from the through-hole 84 located at the other end in a position different in the vertical direction. 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 . A screw 57 passes through the through hole 84 . As shown in FIG. 29 , the insertion direction of the screw 27 into the through hole 84 on the side of the rear heat insulating wall 315 is perpendicular to the inner surface of the rear heat insulating wall 315 , that is, the surface of the rear inner panel 26 . 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 .

In addition, as shown in FIGS. 26 and 27 , the fixed cover 81 has a first protrusion 85 , an opening 86 , a second protrusion 87 , and an opening 88 . The first protruding portion 85 is located near the upper portion in the longitudinal direction of the fixed cover 81 and protrudes outward. That is, the first protruding portion 85 extends horizontally from the surface of the fixed cover 81 along the back inner panel 26 . The first protruding portion 85 is formed in a rectangular container shape with an opening on the back inner panel 26 side. The opening 86 is provided at the tip 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 part of the fixed cover 81 in the longitudinal direction. Like the first protrusion 85 , the second protrusion 87 also protrudes outward. That is, the second protrusion 87 extends horizontally from the surface of the fixed cover 81 along the back inner panel 26 . The second protruding portion 87 is also formed in a rectangular container shape with an opening on the back inner panel 26 side. The opening 88 is provided at the tip end of the second protrusion 87 and communicates the inside and the outside of the second protrusion 87 .

The reinforcing member 82 has substantially the same configuration as the reinforcing member 55 . That is, the reinforcing member 82 includes a resin-made member. The main body portion of the reinforcement member 82 is formed in a shape in which two vertically long rectangular plates have longitudinal sides butted against each other at right angles, a so-called L-shaped cross-section. The reinforcing member 82 constitutes two surfaces other than the inclined surface among the surfaces constituting the right triangle cross section of the fixture 512 . The reinforcing member 82 reinforces the fixing cover 81 and increases the strength of the fixing tool 512 . The length of the reinforcing member 55 in the longitudinal direction is set to be substantially the same size as the length of the fixed cover 54 in the longitudinal direction.

In addition, the reinforcing member 82 has a first reinforcing protrusion 91 and a second reinforcing protrusion 92 . The first reinforcing protruding portion 91 and the second reinforcing protruding portion 92 are plate-shaped and provided at positions corresponding to the first protruding portion 85 and the second protruding portion 87 of the fixed cover 81 . These first reinforcing protrusions 91 and second reinforcing protrusions 92 are integrally formed with the main body of the reinforcing member 82 . Furthermore, the first protruding portion 85 and the first reinforcing protruding portion 91 , and the second protruding portion 87 and the second reinforcing protruding portion 92 are each formed in a cylindrical shape.

The reinforcing member 82 is arranged such that one surface faces the right inner panel 24 , that is, the right heat insulating wall 313 , and the other surface faces the rear inner panel 26 , that is, the rear heat insulating wall 315 . Thus, the reinforcing member 82 is arranged to straddle between the end portions of the adjacent heat insulating walls 31 , in this case, the end portion of the right heat insulating wall 313 and the end portion of the rear heat insulating wall 315 . Therefore, since the first heat insulating member 15 is not provided at the corner portion where the adjacent heat insulating walls 31 are butted, the heat insulating performance thereof is lower than that of other portions of the heat insulating walls 31 . The fixture 512 is arranged at such a portion of the heat insulating wall 31 where the heat insulating performance is low.

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 reinforcement member 55 . That is, the screw holes 89 and the through holes 90 are provided at both ends in the width direction perpendicular to the longitudinal direction of the reinforcement member 82 . The screw holes 89 and the through holes 90 correspond to the through holes 84 of the fixed cover 81 and are arranged in a so-called zigzag shape along the longitudinal direction of the reinforcement member 82 .

The threaded hole 89 is configured to have a female thread on the inner side of a cylinder that is located in the reinforcement member 82 and protrudes toward the fixed cover 81 side. The axial direction of the threaded hole 89 coincides with the axial direction of the through-hole 84 of the fixed cover 81 when the fixed cover 81 is attached to the reinforcing member 82 . The threaded hole 89 is used for setting the screw 57 .

The through hole 90 is formed by penetrating the bulging portion 77 provided on the reinforcing member 82 toward the right inner panel 24 or the back inner panel 26 side. The bulging portion 77 is formed by bulging both widthwise end portions of the reinforcement member 82 toward the fixed cover 81 side. In this case, the bulging portion 77 is also arranged in a so-called zigzag shape along the longitudinal direction of the reinforcement member 82 . The through holes 90 allow the screws 57 to pass therethrough.

The heat insulating member 83 for a corner is configured substantially similarly to the heat insulating member 56 for a corner. That is, the heat insulating member 83 for corners is also arrange|positioned so that the butt part of the adjacent heat insulating wall 31 may be covered. As shown in FIG. 27 , the corner heat insulating member 83 includes a heat insulating member such as styrofoam formed in a vertically long substantially triangular prism. The corner heat insulating member 83 has a plurality of cutouts 93 , a first heat insulating protrusion 94 , an opening 95 , a second heat insulating protrusion 96 , an opening 97 , and a storage portion 98 .

The cutout portion 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 rectangle. The notches 93 are 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 screws 57 provided in the through holes 84 of the fixing cover 81 , the screw holes 89 of the reinforcing member 82 , and the through holes 90 . .

The housing portion 98 is configured similarly to 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 on a cross section perpendicular to the longitudinal direction of the corner heat insulating member 83 , that is, a portion near the corner 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 , that is, at a position corresponding to the first protrusion 85 , and protrudes outward. That is, the first heat insulating protruding portion 94 extends in the horizontal direction from the main body portion of the corner heat insulating member 83 along the back inner panel 26 . The first heat-insulating protruding portion 94 is formed in a quadrangular column shape. The opening portion 95 is provided at the tip end portion of the first heat insulating protrusion portion 94 and communicates with the inside of the housing portion 98 . The first heat-insulating protruding portion 94 is accommodated inside the cylindrical shape including the first protruding portion 85 and the first reinforcing protruding portion 91 .

The second heat insulating protrusion 96 is located near the lower portion of the corner heat insulating member 83 , that is, at a position corresponding to the second protrusion 87 , and protrudes outward. That is, the second heat insulating protrusion 96 extends in the horizontal direction from the main body portion of the corner heat insulating member 83 along the back inner panel 26 . The second heat-insulating protruding portion 96 is also formed in a rectangular column shape. The opening portion 97 is provided at the tip end portion of the second heat insulating protrusion portion 96 and communicates with the inside of the housing portion 98 . The second heat insulating protrusion 96 is accommodated inside the cylindrical shape including the second protrusion 87 and the second reinforcing protrusion 92 .

The pipe 53 is accommodated inside the housing portion 98 . That is, the fixture 512 accommodates the pipe 53 inside the cylindrical shape. The pipe 53 is held so as not to deviate from a predetermined position by the inner surface of the housing portion 98 serving as a holding portion. In addition, the piping 53 is also held by hooks, not shown, or the like. In this case, the part of the piping 53 provided inside the cylindrical shape of the fixture 512 cannot be seen from the opening side of the refrigerator 11 . In addition, a plurality of pipes 53 are housed in the corner portion.

The fixing tool 512 is formed by connecting two parts at the height position of the second partition member 38 in the longitudinal direction, that is, the vertical direction, in this case, the upper fixing tool 512 and the lower fixing tool 512. of. Therefore, as shown in FIG. 27 and the like, the fixed cover 81 includes two 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 fixed cover 81 becomes easy, and deformation such as twisting hardly occurs. In this case, the first protrusion 85 and the opening 86 are provided on the upper fixing cover 811 , and the second protrusion 87 and the opening 88 are provided on the lower fixing cover 812 .

Similarly, the reinforcing member 82 includes two parts divided in the longitudinal direction of the reinforcing member 82 , in this case, an upper reinforcing member 821 and a lower reinforcing member 822 . Furthermore, the corner heat insulating member 83 also includes two parts divided in the longitudinal direction of the corner heat insulating member 83 , in this case, an upper corner heat insulating member 831 and a lower corner heat insulating member 832 . Furthermore, the first heat insulating protrusion 94 and the opening 95 are provided on the upper corner heat insulating member 831 , and the second heat insulating protrusion 96 and the opening 97 are provided on 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 . In addition, the lower fixing cover 812 , the lower reinforcement member 822 , and the lower corner heat insulating member 932 constitute the lower fixing tool 512 . At the right corner of the inner box 14 , the upper fixture 512 is placed on the refrigerator compartment 39 and vegetable compartment 40 sides, and the lower fixture 512 is placed on the second freezer compartment 43 and first freezer compartment 42 sides.

Two threaded holes 74 are provided at the lower end of the upper reinforcement member 821 . Furthermore, two through-holes 75 are provided at positions corresponding to the screw holes 74 at the upper end portion of the lower reinforcement member 822 . The upper reinforcing member 821 and the lower reinforcing member 822 are fixed by screwing the screw 76 passed through the through hole 75 into the threaded hole 74 .

In this way, the fixture 512 is configured as a whole so that it can be divided into two in the longitudinal direction which is the direction extending along the corner portion. In this case, as shown in FIGS. 24 and 26 , the lower end portion of the upper corner heat insulating member 831 is in contact with the upper end portion of the lower corner heat insulating member 832 . In addition, the lower end portion of the upper fixed cover 811 is separated from the upper end portion of the lower fixed cover 812 .

The pipe 53 includes two bent pipes. As shown in FIGS. 5 and 25 to 27 , the two pipes 53 each have a detour 531 . The detour 531 is located near the upper portion of the pipe 53 and is formed by bending a plurality of times in the horizontal direction. The pipe 53 can ensure a long distance through the detour 531 , thereby enabling favorable heat exchange of the refrigerant passing through the pipe 53 .

One end of each pipe 53 is connected to the compressor installed in the machine compartment 21 , and the other end is connected to the cooler. Specifically, each pipe 53 extends from the machine compartment 21 side to the refrigerator compartment 39 side through the communicating hole 211 a of the upper side separating portion 211 . In this case, the communication hole 211 a is preferably formed on the upper surface of the fixture 512 . Then, each of the pipes 53 passes through the detour 531 and enters the housing portion 98 of the corner heat insulating member 83 from the upper end portion of the fixture 512 . In this case, as shown in FIG. 5 , the detour 531 is accommodated in the second heat insulating member 151 of the separation part 211 . One of the two pipes 53 passes through the inside of the first heat insulating projection 94 provided on the upper corner heat insulating member 831 , and extends from the opening 95 and the opening 86 toward the refrigerator compartment 39 . Next, the piping 53 protruding from the openings 95 and 86 is connected to a cooler for refrigeration, but is 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 compartment 42 . The pipes 53 protruding from the openings 97 and 88 are connected to a cooler for freezing, but are not shown in detail. In this case, the openings 86 and 88 are used to guide a part of the piping 53 housed inside the fixture 512 toward the storage compartment. In addition, a part of the piping 53 may be guided from the lower end surface of the fixture 512 to the component storage chamber 212 through a communication hole (not shown) of the lower side separating portion 213 .

As shown in FIGS. 25 and 27 , each pipe 53 has welded portions 99 at both ends thereof. The diameter of the pipe 53 is formed larger than that of other pipes, so that the welded portion 99 can be welded to the welded portion of another pipe. Each pipe 53 is welded and connected to other pipes outside the fixture 512 . In addition, other piping means, for example, piping connected to an evaporator for refrigeration, an evaporator for freezing, and a compressor.

As shown in FIGS. 29 to 31 , between the fixed cover 81 and the reinforcing member 82 , specifically, between the end of the fixed cover 81 in the width direction and the end of the reinforcing member 82 in the width direction, a second A sealing member 101 . The first sealing member 101 has the same configuration as the first sealing member 71 provided on the fixture 511 .

As shown in FIGS. 29 to 31 , the second sealing member 102 is provided between the reinforcing member 82 and the right heat insulating wall 313 and between the reinforcing member 82 and the rear heat insulating wall 315 . The second sealing member 102 has the same configuration as the second sealing member 72 provided on the fixture 511 side.

In addition, as shown in FIG. 22 , a third sealing member 103 is provided at a portion where the right heat insulating wall 313 and the rear heat insulating wall 315 butt against each other. The third sealing member 103 is configured in the same manner as the third sealing member 73 provided at the butting portion of the right heat insulating wall 313 and the rear heat insulating wall 315 .

In this way, the fixing tool 512 is constituted by the fixing cover 81 and the reinforcement member 82 sandwiching the corner heat insulating member 83 . The corner heat insulating member 83 accommodates the pipe 53 in the accommodation portion 98 . The screws 57 are passed through the through-holes 84 in a state where the end portions in the width direction of the fixing cover 81 and the end portions in the width direction of the reinforcing member 82 are brought into abutment. The screw 57 passing through the through hole 84 is screwed into the threaded hole 61 of the reinforcement member 82 . Thus, the fixed cover 81 is fixed to the reinforcing member 82 . Furthermore, the fixing cover 81 is fixed to the reinforcing member 82 , whereby the corner heat insulating member 83 and the piping 53 are also fixed inside the fixing tool 51 .

In this case, the fixed cover 81 , the reinforcing member 82 , the heat insulating member 83 for corners, and the piping 53 have an integrated structure. Furthermore, 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 . In this way, the divided portion of the fixture 512 is covered by the right rear end portion of the second partition member 38 .

In addition, the right heat insulating wall 313 and the back side heat insulating wall 315 are opposed to the reinforcement member 82 via the second sealing member 102 . As a result, the adjacent right heat insulating wall 313 and back side heat insulating wall 315 are connected and fixed by the fixing tool 512, and the angle formed by the right side heat insulating wall 313 and the back side heat insulating wall 315 is kept at right angles to the reinforcing member 82. part corresponding to 90°. That is, the reinforcing member 82 functions as an angle holding portion that holds the angle between the adjacent right heat insulating wall 313 and the rear heat insulating wall 315 at 90°.

As shown in FIG. 32 , the pipe 53 may pass between the right end edge portion of the second partition member 38 and the right inner panel 24 . In this case, inside the inner box 14 , a heat insulating member 105 for a partition is provided between the surface partition 45 of the second partition member 38 and the right inner panel 24 of the inner box 14 . The heat insulating member 105 for a partition includes, for example, foamed styrene or the like, and functions as a heat insulating member. The heat insulating member 105 for a partition is formed in the shape of a rectangular column long in the front-rear direction along the right end edge portion of the second partition member 38 . The heat insulating member 105 for a partition has a recessed part 106 . The recessed portion 106 is formed in a concave shape that is opened on the right inner panel 24 side of the partition heat insulating member 105 . A part of the piping 53 is provided inside the recessed portion 106 of the partition heat insulating member 105 . In this case, the details are not shown, but the piping 53 may be arranged as described below.

For example, the two pipes 53 extend downward from the upper end of the fixture 512 into the housing portion 98 of the upper corner heat insulating member 831 . Then, the pipes 53 protrude outwardly and forwardly from the accommodating portion 98 from the connecting portion between the upper corner heat insulating member 831 and the lower corner heat insulating member 832 . Further, the pipes 53 pass through the inside of the recessed portion 106 of the partition heat insulating member 105 , and extend forward along the right end edge of the second partition member 38 . Then, the pipes 53 are folded back 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 pipes 53 enter from the connecting portions of the upper corner heat insulating member 831 and the lower corner heat insulating member 832 into the housing portions 98 of the lower corner heat insulating members 832 . Then, the pipes 53 protrude from the openings 86 and 88 and are respectively connected to the cooler for refrigeration and the cooler for freezing.

In addition, although not shown in the figure, a heat insulating member 105 having the same configuration as the partition part may be provided inside the inner box 14 between the surface partition part 45 of the second partition member 38 and the left inner panel 25 of the inner box 14. The member is the same as the above-mentioned piping 53 , and the electric wire 52 is arranged along the left end edge of the second partition member 38 .

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

First, the heat insulating wall 31 and the fixing tool 51 as shown in FIG. 1 are produced respectively. Next, as shown in FIG. 33 , a fixing tool 511 is attached to one of the two adjacent heat insulating walls 31 , for example, the left heat insulating wall 314 , with screws 57 . Next, the back side heat insulating wall 315 is attached to the member which integrated the left heat insulating wall 314 and the fixture 511 . As a result, 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 form a right back corner of the inner box 14 . In this case, the angle of the adjacent wall formed by the left heat insulating wall 314 and the rear heat insulating wall 315 is maintained at 90° corresponding to the right-angle portion of the reinforcing member 55 . The other corners of the inner box 14 are also formed by connecting and fixing the heat insulating wall 31 and the fixture 51 . As a result, the inner box 14 is formed in which the angle of the adjacent heat insulating walls 31 is 90°, and the rectangular parallelepiped heat insulating box 12 is formed.

In this way, the fixture 51 regulates the angle of the adjacent heat insulating walls 31 to a predetermined value, for example, 90°. In addition, not only the angle of the adjacent heat-insulating walls 31 is set to 90°, but in this case, the angle of the adjacent heat-insulating walls 31 can also be adjusted to approximately 90°, as long as each corner of the heat-insulating box 12 becomes Just about 90°. That is, the angle specified for the fixture 51 does not need to be too strict, and it is allowed to fall 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 predetermined positions with respect to the heat insulating box 12 thus assembled. As a result, refrigerator compartment 39 , vegetable compartment 40 , ice maker compartment 41 , first freezer compartment 42 , and second freezer compartment 43 are formed inside heat insulating box 12 . Further, the front ends of 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 .

According to the above configuration, the following effects can be achieved.

According to the above configuration, the electric wires 52 and the piping 53 are installed in the accommodation space of the heat insulating box 12 . That is, the electric wires 52 and the pipes 53 are not provided inside the heat insulating wall 31 . Therefore, there is no need to consider securing a space for accommodating the electric wires 52 and the piping 53 inside the heat insulating wall 31 . Accordingly, the heat insulating wall 31 can make the thickness of the first heat insulating member 15 which is superior in heat insulating performance to that of the second heat insulating member 151 as thick as possible. As a result, the refrigerator has excellent thermal insulation performance and can sufficiently secure the inner space of the refrigerator.

The electric wires 52 and the pipes 53 are provided at the rear of the inner box 14 , in this case, at the rear back corner of the heat insulating box 12 . Therefore, the electric wires 52 and the piping 53 are less likely to become obstacles when food is accommodated in the box.

An upper side separating part 211 connected to the machine room 21 is provided directly on the fixture 51 . In addition, a lower side separating portion 213 connected to the component storage chamber 212 is provided directly under the fixture 51 . Therefore, the electric wire 52 and the pipe 53 passing through the fixture 51 can be easily guided to the machine room 21 and the component storage room 212 by passing through the upper and lower separation parts 211 and 213 . Accordingly, the electric wires 52 and the pipes 53 can be easily connected to other electric wires and pipes in the machine room 21 and the component storage chamber 212 .

In addition, a communication hole 211 a passing through the second heat insulating member 151 of the separation part 211 to communicate with the machine room 21 is provided above the fixture 51 . Therefore, the electric wires 52 and the pipes 53 can extend in the vertical direction. As a result, the arrangement of the electric wires 52 and the piping 53 becomes easy.

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

The electric wires 52 and pipes 53 provided at the corners of the inner box 14 are covered by the fixing covers 54 and 81 of the fixing tool 51 . Therefore, it is possible to prevent the food in the storage room from contacting the electric wire 52 and/or the piping 53 as much as possible. Furthermore, since the electric wire 52 and the piping 53 cannot be seen by a user, the design property of the inside of a storage room can be improved.

The heat insulation box 12 of the refrigerator 11 is comprised by combining the heat insulation walls 31 divided into multiple pieces, and connecting and fixing two adjacent heat insulation walls 31 by the fixing tool 51. As shown in FIG. Thereby, the assembly work of the refrigerator 11 becomes easy compared with the conventional structure which provided the heat insulating member to the three-dimensional inner box beforehand.

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 12 can be thinned, and as a result, the space inside the box can be increased.

The reinforcing members 55 and 82 of the fixture 51 function as angle holding portions that hold the angle of the adjacent heat insulating walls 31 at 90°. Accordingly, the inner box 14 can be formed into a rectangular parallelepiped. In addition, since the heat insulating box 12 is configured to hold the corners of the inner box 14 at 90°, the combination of the heat insulating walls 31 becomes easy.

The fixture 51 is fixed at a position facing the two adjacent and separated first heat insulating members 15 . Therefore, the first heat insulating member 15 can be fixed with reference to the fixing tool 51 . As a result, it is easy to keep the angle of the adjacent heat insulating walls 31 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 in the vicinity of the center in the vertical direction. 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. Accordingly, it is possible to suppress the opening of the front opening of the inner box 14 in the left-right direction. Furthermore, twisting of the inner case 14 can be suppressed, and the inner case 14 and the heat insulating box 12 can be held as a rectangular parallelepiped.

Electric wires 52 and pipes 53 provided at corners of the inner box 14 are covered with fixtures 51 . Therefore, it is possible to prevent the food in the storage room from contacting the electric wire 52 and/or the piping 53 as much as possible. Furthermore, since the electric wire 52 and the piping 53 cannot be seen by a user, the interior design property of a storage room can be improved.

Corner heat insulating members 56 and 83 are provided at corners of the inner box 14 . Thereby, the heat insulation effect of a corner part can be improved. In addition, since the heat insulating members 56 and 83 for corners are covered with the fixture 51, the interior design of the storage room can be improved in the same manner as above.

The heat insulating members 56 and 83 for corners are arranged so as to cover the abutting portions of the adjacent heat insulating walls 31 . That is, the heat insulating performance is supplemented by the heat insulating members 56 and 83 for corners at the butt-joint portion of the two heat insulating walls 31 where the heat insulating performance tends to be relatively low. Thereby, the improvement of the heat insulation performance of the heat insulation box 12 whole is aimed at.

The fixture 51 is formed in a cylindrical shape, and an electric wire 52 or a pipe 53 and heat insulating members 56 and 83 for corners are accommodated inside the cylindrical shape. Thereby, since the electric wire 52, the piping 53, and the heat insulating members 56 and 83 for corners are not seen by a user, the interior design property of a storage room can be improved.

The fixing tool 51 has reinforcing members 55 and 82 having an L-shaped cross section. As a result, the fastening tool 51 achieves increased strength against deformation such as twisting and/or bending. In addition, since the fixing tool 51 has a structure in which the fixing covers 54 and 81 are provided on the reinforcement members 55 and 82 having an L-shaped cross section, it can be easily formed into a cylindrical shape.

Since the electric wires 52 and the pipes 53 are held by the housing portions 67 and 98 of the corner heat insulating members 56 and 83 , deviation of the electric wires 52 and the pipes 53 from predetermined positions can be suppressed.

The fixing cover 54 of the fixing tool 511 has openings 59 and 60 . The electric wire 52 passed through the fixture 511 passes through the openings 59 and 60 and is guided toward the storage compartment. Thereby, the electric wire 52 can protrude from the opening part 59,60 to the storage room side, and can be connected with the electric wire located in the outer side of the fixing tool 511, ie, the storage room side. In particular, the electric wire 52 has a connecting portion 68 for connecting to another electric wire at the end protruding from the openings 59 and 60 of the fixture 511 . Accordingly, the electric wire 52 can be easily connected to other electric wires on the outside of the fixture 511 .

The fixing cover 81 of the fixing tool 512 has openings 86 and 88 . The pipe 53 passed through the fixture 512 is passed through the openings 86 and 88 and guided toward the storage compartment. Thereby, the piping 53 can protrude from the opening part 86,88 to the storage room side, and can be connected to the piping located in the storage room side. In particular, the pipe 53 has a welding portion 99 for welding to another pipe at the end protruding from the openings 86 and 88 of the fixture 512 . As a result, the pipe 53 can be easily welded and connected to other pipes on the outside of the fixture 512 .

In addition, the electric wire 52 is integrated with the fixture 511 , and the pipe 53 is integrated with the fixture 512 . In this case, the electric wires 52 and the pipes 53 are also installed at predetermined corners of the heat insulating wall 31 when the heat insulating wall 31 is connected and fixed by the fixture 51 . Thereby, the assembly work of the electric wire 52 and the piping 53 can be simplified.

The electric wire 52 is provided at the left inner corner of the inner box 14 and is covered by a fixture 511 . The pipe 53 is provided at the right back corner of the inner box 14 and is covered by a fixture 512 . Thereby, it is possible to reduce the cooling of the electric wires 52 by the piping 53 .

In addition, when a part of the pipe 53 is arranged along the right edge portion of the second partition member 38 , the pipe 53 can be extended without enlarging the fixture 51 . Thereby, when the piping 53 is a suction pipe, the storage space of a store room can be fully ensured, and the length of the piping 53 can be ensured, and the efficiency of heat exchange can be improved.

First seal members 71 , 101 are provided between the fixed covers 54 , 81 and the reinforcement members 55 , 82 , respectively. The first sealing members 71 , 101 suppress cold air from flowing into the fixtures 511 , 512 . Accordingly, it is possible to suppress dew condensation from being formed on internal components of the fixture 51 such as the electric wires 52 .

The second sealing members 72 and 102 are provided between the heat insulating wall 31 and the fixture 51 . The second sealing members 72 , 102 seal between the reinforcement members 55 , 82 and the heat insulating wall 31 , respectively. That is, the second sealing members 72, 102 improve the airtightness between the reinforcement members 55, 82 and the heat insulating wall 31, respectively. Thereby, the ingress and egress of air to the inside of the heat insulating box 12 , that is, the store room, is suppressed through the butted portion of two adjacent heat insulating walls 31 . Therefore, leakage of cold air in the storage room to the outside of heat insulating box 12 can be reduced, and inflow of warm air outside of heat insulating box 12 into the storage room can be reduced.

Third sealing members 73 and 103 are provided at the butt joints between two adjacent heat insulating walls 31 , for example, between the right heat insulating wall 313 and the rear heat insulating wall 315 and between the left heat insulating wall 314 and the rear heat insulating wall 315 . . Accordingly, the inside and outside of the heat insulating box 12 can be sufficiently insulated from heat, and as a result, the inside of the heat insulating box 12 can be efficiently cooled.

The fixture 51 is divided into a plurality, in this case two, in the direction extending along the corner. Therefore, handling of the fixture 51 becomes easy. In addition, the second partition member 38 is arranged at the divided portion of the fixture 51 . Thereby, cold air in the storage room can be prevented from entering the inside 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 insulation member 15 includes a thin vacuum insulation panel excellent in insulation performance. Therefore, the heat insulating wall 31 can obtain high heat insulating performance by the vacuum heat insulating panel, and can reduce its thickness. Therefore, the internal volume of the heat insulating box 12 can be increased as long as the external dimensions are the same as those using heat insulating materials such as polyurethane.

The separation part 211 is filled with the second heat insulating member 151 . Therefore, the strength of the heat insulating wall 31 can be improved.

Furthermore, in the conventional configuration in which the heat insulating box is not divided, for example, after assembling the inner box or the outer box into a box shape, they are combined separately, and the assembly becomes large and large-scale. In the configuration of the present application, since the heat insulating box 12 is constituted by combining a plurality of divided heat insulating walls 31 , the assembly can be reduced in size.

(second embodiment)

Next, a second embodiment will be described with reference to FIG. 34 . In addition, the configuration of the left back corner of the inner box 14 described in the second embodiment can also be applied to other corners.

The fixture 111 of the second embodiment does not have a reinforcing member. The fixing tool 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 the corner of the inner box 14 . In this embodiment, the two adjacent heat insulating walls 31 are, in this case, the left heat insulating wall 314 and the back side heat insulating wall 315 , and are fixed to the fixture 111 with screws not shown. That is, two adjacent heat insulating walls 31 are connected and fixed by the fixing tool 111 .

The fixture 111 has two extensions 112 , 113 . The extension parts 112 and 113 are respectively provided at both ends of the fixture 111 in the shorter direction, that is, in the width direction. The extension parts 112 and 113 are formed so as to extend opposite to the adjacent inner panels 22 to 26 , in this case, the left inner panel 25 of the left heat insulating wall 314 and the back inner panel 26 of the rear heat insulating wall 315 . That is, the extension portion 112 extends toward the front side of the heat insulating box 12 along the left inner panel 25 . The extension portion 113 extends to the right side of the heat insulating box 12 along the back inner panel 26 .

In this case, the surface of the extension part 112 on the left inner panel 25 side facing the rear heat insulating wall 315 is extended relative to the extending part 113 on the back inner panel 26 side facing the left heat insulating wall 314 side. The resulting face is vertical. Therefore, when the adjacent left heat-insulating wall 314 and the back-side heat-insulating wall 315 are connected and fixed by the fixture 111, the angle between the adjacent walls formed by the left-side heat-insulating wall 314 and the back-side heat-insulating wall 315 is defined as 90°. . In this case, the extension parts 112 and 113 of the fixture 111 function as an angle holding part.

Between the extensions 112 , 113 and the adjacent inner panels 25 , 26 of the inner case 14 , a fourth sealing member 114 is provided. The fourth sealing member 114 is configured in the same manner as the second sealing members 72 and 112 .

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

The second corner heat insulating member 115 has an accommodation portion 116 . The storage portion 116 is formed by denting the second corner heat insulating member 115 in a concave shape with respect to the left inner panel 25 side. The storage portion 116 extends along the longitudinal direction of the second corner heat insulating member 115 . The electric wire 52 is provided inside the storage part 116 and is held by the storage part 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 fixing tool 111 having no reinforcement member, the adjacent two heat insulating walls 31 can be connected and fixed.

The fixture 111 has extensions 112 , 113 whose extension surfaces are perpendicular to each other. Therefore, the angle of adjacent inner panels of the inner box 14 is maintained at 90°. Accordingly, the inner box 14 , that is, the heat insulating box 12 can be formed into a rectangular parallelepiped.

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

The electric wire 52 is accommodated in the accommodation part 116 of the 2nd corner heat insulating member 115. As shown in FIG. Therefore, deviation of the electric wire 52 from a predetermined position can be prevented as much as possible.

(third embodiment)

Next, a third embodiment will be described with reference to FIG. 35 . In addition, the configuration of the right back corner of the inner box 14 described in the third embodiment can also be applied to other corners.

In the third embodiment, as shown in FIG. 35 , a heat insulating member 120 includes a first heat insulating member 121 and a second heat insulating member 122 . The first insulation member 121 includes a vacuum insulation panel. The first heat insulating member 121 is disposed so as to be bonded to the outer surfaces of the inner panels 22 to 26 of the inner box 14 . The second heat insulating member 122 includes a member having higher thermal conductivity than the first heat insulating member 121 , in other words, a member having lower heat 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 where the first heat insulating member 121 is disposed, among the spaces for accommodating the heat insulating member 120 . That is, the second heat insulating member 122 is also provided at a corner portion of the heat insulating box 12 , that is, 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 of the total volume of the space in which the heat insulating member 120 is accommodated, and more preferably occupies 80% or more.

That is, the volume of the second heat insulating member 122 is set to be smaller than the volume of the first heat insulating member 121 . In addition, as shown in FIG. 35 , when the plate thickness of the first heat insulating member 121 is T ₁ , the plate thickness of the second heat insulating member 122 is T ₂ , and the outer diameter of the piping 53 is T ₃ , the T ₁ >T ₃ >T ₂ . The plate thickness referred to here is the thickness in the cross-sectional direction of the outer case 13 and the inner case 14 on the cross-section in the horizontal direction of the heat insulating wall 31 . That is, the plate 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 case 13 facing the first heat insulating member 121 , for example, the right outer panel 18 in FIG. 35 . Also, in foam insulation, it is the thickness after curing.

According to the said structure, the refrigerator which used both the heat insulating members of the 1st heat insulating member 121 and the 2nd heat insulating member 122 can be obtained. In this case, the electric wires 52 and the pipes 53 are also provided at the back corners of the storage space of the heat insulating box 12 . Also, the volume of the first heat insulating member 121 having a heat insulating effect superior to that of the second heat insulating member 122 is increased. Thereby, while the wall of the heat insulation box 12 can be thinned, high heat insulation performance can be obtained, and as a result, a sufficient storage space can be ensured.

That is, in order to secure a space for accommodating the piping 53 inside the heat insulating wall 31, for example, between the first heat insulating member 121 and the outer case 13, it is necessary to reduce the thickness T1 of the first heat insulating member 121 or increase the thickness T1 _of the second heat insulating member 121. The plate thickness T ₂ of the second heat insulating member 122 . The former leads to a reduction in the heat insulation performance of the heat insulating box 12 , and the latter leads to an increase in the thickness of the heat insulating wall 31 , which reduces the storage space. Therefore, in the present embodiment, the piping 53 is housed in the rear of the interior of the storage room, in this case, the right back corner of the inner box 14 . Accordingly, the heat insulating box 12 does not need to reduce the plate thickness T ₁ of the first heat insulating member 121 , so good heat insulating performance can be obtained. Furthermore, since the heat insulating box 12 does not need to increase the plate thickness T ₂ of the second heat insulating member 122 , a sufficient storage space can be secured without increasing the thickness dimension of the heat insulating wall 31 .

That is, as in this embodiment, when the outer diameter T3 of the pipe 53 is larger than the plate thickness T2 _of the _second heat insulating member 122, the pipe 53 cannot be accommodated inside the heat insulating wall 31, especially the first heat insulating wall 31. Between the component 121 and the outer box 13 . In this case, the piping 53 can be housed inside the storage space such as a storage room, and the thickness T1 of the first heat insulating member 121 can be made larger than the thickness T2 _of the _second heat insulating member 122, and the heat insulating box can be made 12 has good thermal insulation performance.

Good heat insulating performance can be obtained by using a vacuum heat insulating panel as the first heat insulating member 121 . In addition, since the heat insulating effect is good even with a thin vacuum heat insulating panel, the wall of the heat insulating box 12 can be thinned, and a sufficient storage space can be ensured.

As the second heat insulating member 122, by using a foam heat insulating material, in this case polyurethane, it is possible to separate the first heat insulating members 121 between each other, between the first heat insulating member 121 and the outer case 13, and between the first heat insulating member 121 and the inner case 14. filled between. Thereby, the heat insulation effect of the heat insulation box 12 whole can be made favorable.

In addition, although the outer diameter of the pipe ₅₃ was described above as T3, the outer diameter of the electric wire 52, that is, a harness of a plurality of electric wires, may be T3 at the left inner corner of the inner box ₁₄ .

(Other implementations)

As the structure in which the electric wires 52 and the piping 53 are provided at the corners of the inner box, it is not limited thereto, and the following configuration is also possible: for example, components other than the electric wires 52 and the piping 53 such as hoses are provided, and are fixed by Use 51 to cover the part.

The fixture 51 is divided into a plurality of pieces in the longitudinal direction. However, when the fixture 51 is installed in, for example, a corner without a partition member and/or a corner with a short length, it does not need to be divided into a plurality in the longitudinal direction.

The fixture 51 of the first embodiment may have the extensions 112 and 113 of the fixture 111 of the second embodiment. In this case, the fourth sealing member 114 may be provided between the fixture 51 and the inner case 14 instead of the second sealing member 72 .

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

The surface partition part 45 can use a vacuum insulation panel and/or polyurethane, foamed styrene, etc. as a heat insulating member. In addition, the surface partition part 45 can be set as the structure which sandwiched the heat insulating member from up and down by the board made of resin or metal.

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

The two adjacent heat insulating walls 31 may be connected and fixed by the fixing tools 51 and 111 in each of the above-mentioned embodiments, and may also be connected and fixed by screws or the like.

The above-mentioned assembly sequence of the heat insulating box 12 is merely an example, and may be changed as follows. For example, the fixtures 51 and 111 are attached to the rear heat insulating wall 315 , and then the right heat insulating wall 313 or the left 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 soft tapes, and silicone sealants or the like may be used.

A second corner heat insulating member 115 may be provided at the right back corner of the inner box 14 , and the piping 53 may be accommodated in the storage portion 116 of the second corner heat insulating member 115 .

Refrigerator 11 may also include a spray unit. The spray unit sprays mist generated by electrostatic atomization into the storage compartment. The diameter of the mist is preferably 1 to 1000 nm. In this case, by providing the fixtures 51 and 111 at the corners formed by the two adjacent heat insulating walls 31 , it is possible to suppress mist from being lost from between the adjacent heat insulating walls 31 to the outside of the refrigerator.

The fixtures 51 and 111 can also be integrally formed with an inner panel of the inner box 14 .

The heat insulating wall 31 may be formed in an L-shape or a U-shape when viewed from the side, the top, or the like. That is, the fixtures 51 and 111 may connect and fix not only the plate-shaped heat insulating walls 31 but also other than plate-shaped divided heat-insulating walls, and plate-shaped divided heat-insulating walls and other plate-shaped divided heat-insulating walls.

The first heat insulating member 15 of the heat insulating wall 31 , that is, the vacuum heat insulating panel does not have to be integrated with the inner panel of the inner box 14 , and may be integrated 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 any one of the inner panel of the inner box 14 and the outer panel of the outer box 13 .

The heat insulating box 12 can also be assembled as follows, for example. First, the box-shaped inner box 14 is formed by connecting and fixing the inner panels 22 to 26 with the fixing tool 51 . Unlike the inner box 14 , the first heat insulating member 15 is attached to the outer box 13 in advance. Then, the heat insulating box 12 is formed by attaching the inner box 14 to a member in which the outer box 13 and the first heat insulating member 15 are integrated. In this case, the inner panel constituting the inner box 14 is not limited to a flat plate shape, and may have an L-shape viewed from above, for example.

The communication hole 211 a is preferably a slit opened on the rear end side of the upper heat insulating wall 311 . Accordingly, the electric wires 52 and the piping 53 can be arranged so as to pass through the opening of the communication hole 211 a from behind the rear end portion of the upper heat insulating wall 311 . Therefore, it is not necessary to pass the ends of the electric wires 52 and the pipes 53 through the communication hole 211a from below the separation part 211, so that the work is easy. In addition, if the communication hole 211 a has the slit shape, it is not necessary to make the inner diameter of the communication hole 211 a larger than that of the connecting portion 68 and the welding portion 99 . Therefore, the inner diameter of the communication hole 211a can be reduced as much as possible.

In this case, after fixing the right insulating wall 313 , the left insulating wall 314 , and the rear insulating wall 315 with the fixture 51 , the upper insulating wall 311 is attached by inserting the electric wire 52 and the pipe 53 into the communicating hole 211 a. In this case, the communication hole 211 a functions as a positioning portion for determining the position of the upper heat insulating wall 311 with respect to the right heat insulating wall 313 , left heat insulating wall 314 , and back side heat insulating wall 315 integrated by the fixture 51 . Thereby, the assembly of the heat insulation box 12 becomes easy. The same applies to the bottom heat insulating wall 312 .

In addition, the communicating hole 211a may not be located directly on the fixture 51, but may be located on the heat insulating member 15 of the rear heat insulating wall 315, for example. Thereby, the slit shape of the communication hole 211a can be shortened, and the leakage of the polyurethane foam from the communication hole 211a can be reduced during filling of the polyurethane foam.

In addition, 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 side heat insulating wall 311 is defined as the separation portion 211, so that The electric wires 52 and the pipes 53 are bent from the fixture 51 toward the rear outer panel 20 side of the rear heat insulating wall 315 to pass through the separation portion 211 . Accordingly, the electric wires 52 and the pipes 53 can be inserted into the communication holes 211 a of the heat insulating member 15 of the rear heat insulating wall 315 .

In addition, the detour 531 of the piping 53 may be accommodated in the machine room 21 .

As described above, in the refrigerator of the above-mentioned embodiment, the electric wires and pipes are installed in the accommodation space of the heat-insulating box, and are not installed inside the heat-insulating wall. Therefore, there is no need to consider securing a space for accommodating electric wires and pipes inside the heat insulating wall. Accordingly, the heat insulating wall can increase the thickness of the first heat insulating member whose heat insulating performance is superior to that of the second heat insulating member as much as possible. As a result, the refrigerator has excellent thermal insulation performance and can secure a sufficient interior space.

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These new embodiments can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the gist 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 (10)

1. a kind of refrigerator, wherein, possess：

Body of thermal insulating box, it is formed as box like and has receiving space in the inner side of its box like；With

Electric wire or pipe arrangement；

The adiabatic wall for constituting the body of thermal insulating box be that the first thermal insulation member with shape stability is clipped between outside plate and inner panel and Constitute, or first thermal insulation member is clipped between the outside plate and the inner panel and second for can filling is filled Thermal insulation member and constitute；

The electric wire or the pipe arrangement are arranged in the receiving space.

2. the refrigerator described in claim 1, wherein：

The electric wire or the pipe arrangement are arranged at the rear portion of the receiving space.

3. the refrigerator described in claim 1 or 2, wherein：

The body of thermal insulating box has：

Machine Room, its outside for being arranged at the receiving space；With

Separation unit, it is located between the receiving space and the Machine Room and is formed between the adjacent thermal insulation member；

The electric wire or the pipe arrangement are guided from the Machine Room through the separation unit to the receiving space.

4. the described refrigerator of any one of claims 1 to 3, wherein：

The electric wire or the pipe arrangement are arranged at the corner portion of the body of thermal insulating box.

5. the described refrigerator of any one of Claims 1-4, wherein：

It is also equipped with the cover for covering the electric wire or the pipe arrangement.

6. the described refrigerator of any one of claim 1 to 5, wherein：

The body of thermal insulating box combines multiple adiabatic walls and constitutes；

It is also equipped with for the adjacent adiabatic wall linking fixed holding appliance.

7. the described refrigerator of any one of claim 1 to 6, wherein：

The volume of the second thermal insulation member is big described in the volume ratio of first thermal insulation member.

8. the described refrigerator of any one of claim 1 to 7, wherein：

The thickness of second thermal insulation member is smaller than the external diameter of the electric wire or the pipe arrangement.

9. the described refrigerator of any one of claim 1 to 8, wherein：

Second thermal insulation member is foam insulation part.

10. the described refrigerator of any one of claim 1 to 9, wherein：

First thermal insulation member is vacuum insulation panel.