JP2014142159A - Heat insulation wall of heat insulation box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease the number of joints of an outer plate portion.SOLUTION: Using a flat plate member including outer plate portion-equivalent regions of one heat insulation wall and two other heat insulation walls continuous to both sides of the former heat insulation wall, respectively, a vacuum heat insulation panel of each of two different heat insulation walls is located in a region away from each boundary portion with one outer plate portion-equivalent region at a predetermined distance in an inner surface of the outer plate portion-equivalent region of each of the two heat insulation walls in the plate member, to adhesively bond one surface of the vacuum heat insulation panel to the inner surface of the outer plate portion-equivalent region of each of the two heat insulation walls, two bending jigs are arranged on the inner surface of the one outer plate portion-equivalent region with an end of each bending jig aligned to the boundary portion, the two outer plate portion-equivalent regions are bent inward via the bending jigs for the one outer plate portion-equivalent region, and one surface of the vacuum heat insulation panel is adhesively bonded to the inner surface of the one outer plate portion-equivalent region after removing the bending jigs.

Description

  Embodiments of the present invention relate to a method for manufacturing a heat insulating box of a refrigerator.

  Some refrigerators include a heat insulating box having a configuration in which a vacuum heat insulating panel is disposed between an inner box and an outer box.

JP-A-4-260780 JP-A-6-147744

  In the above-described refrigerator, the outer box and the inner box are large in size, and the production and assembly of the heat insulating box are large, resulting in poor productivity. Therefore, it is considered that the heat insulation box is divided into a plurality of heat insulation walls, that is, a left heat insulation wall, a right heat insulation wall, an upper heat insulation wall, a lower heat insulation wall, and a back heat insulation wall. The five heat insulating walls are combined to form a rectangular box-shaped heat insulating box whose front surface is open. In addition, in the heat insulation box using this vacuum heat insulation panel, there exists an advantage which can reduce foaming urethane as much as possible.

  In the above-mentioned heat insulation box, since it comprises the outer plate part in which the outer box is divided in each heat insulating wall, a gap is likely to occur at the joint of the outer plate part. In this case, as described above, this type of heat insulation box has an advantage that the urethane foam can be reduced, but on the other hand, if there is no or a small amount of urethane foam, there is a risk of moisture absorption from the gap.

  Then, the manufacturing method of the heat insulation box of a refrigerator which can reduce the joint of an outer-plate part is provided.

  The manufacturing method of the heat insulating box of the refrigerator of the embodiment has a left heat insulating wall, a right heat insulating wall, an upper heat insulating wall, a lower heat insulating wall, a rear heat insulating wall, and has a rectangular box shape with an open front surface. About manufacturing the heat insulation box of the refrigerator in which the heat insulation wall is provided with the vacuum heat insulation panel between the outer plate portion and the inner plate portion, one heat insulation wall among the heat insulation walls and another continuous on both sides thereof The main heat insulating wall composed of the two heat insulating walls is manufactured by the following steps (a) to (e), and then the two heat insulating walls remaining on the heat insulating wall main body are attached.

(A) Step: Using a single plate member having a corresponding area of each outer plate of the one heat insulating wall and the other two heat insulating walls, each outside of the two heat insulating walls in the plate member Each vacuum heat insulation panel of each of the two other heat insulation walls is positioned at a part of the inner surface of the plate part equivalent region at a predetermined distance from each boundary part with the one outer plate part equivalent region. Bonding one surface to the inner surface of each outer plate portion corresponding region of the two heat insulating walls,
(A) Step: Before or after the execution of the step (A), the step of adhering the inner plate portion to the surface opposite to the one surface of the vacuum heat insulating panels to be bonded in the step (A),
(C) Step: After the execution of the step (a) and the step (a), two folding jigs are respectively bent on the inner surface of the one outer plate portion corresponding region of the plate member at the respective boundary portions. A step of aligning the ends of the jig and folding the two outer plate portion equivalent regions inwardly with respect to the one outer plate portion equivalent region via the bending jig;
(D) Step: After removing the bending jig, the step of bonding one surface of the vacuum heat insulation panel to the inner surface of the one outer plate equivalent region,
(E) Step: A step of bonding an inner plate portion to a surface opposite to the one surface of the vacuum heat insulating panel to be bonded in the step (d) before or after the execution of the step (d).

The perspective view which looked at the heat insulation box of the refrigerator by a 1st embodiment from the lower part The perspective view which looked at the heat insulation box from the upper part Perspective view of the refrigerator as seen from above Transverse plan view of heat insulation box Exploded perspective view of left heat insulation wall A perspective view of the upper inner plate viewed from below The perspective view which looked at the lower inner plate part from the upper part Enlarged view of part K in FIG. Cross-sectional plan view of the corner between the left and right heat insulation walls Longitudinal front view of the corner between the left heat insulating wall and the upper heat insulating wall Exploded perspective view of fixture and left inner plate The perspective view which shows the attachment state of the fixing tool with respect to a left inner board part Same vertical side view Longitudinal side view with connecting plate attached to fixture Transverse plan view of the connecting portion between the cross beam member and the left heat insulating wall A perspective view of the shelf support from the back Exploded side view of shelf board support, left inner plate and screw Vertical side view showing the mounting state of the shelf support The perspective view which looked at the heat insulation box of the refrigerator by 2nd Embodiment from the downward direction The perspective view which looked at the heat insulation box from the upper part Exploded perspective view of left heat insulation wall Cross-sectional plan view of the corner between the left and right heat insulation walls Vertical side view of the shelf support section A vertical side view of the shelf support portion at a position different from FIG. The exploded perspective view which looked at the shelf board support part and the reinforcement board from the back side Vertical side view of partition wall support Perspective view of partition wall support part The perspective view which looked at the heat insulation box of the refrigerator by 3rd Embodiment from upper direction Exploded perspective view of left heat insulation wall A vertical side view of the shelf support part showing the fourth embodiment Longitudinal side view with the shelf support part disassembled Sectional drawing of the principal part which shows other embodiment (the 1) in 1st Embodiment, and shows the folding structure of the ear | edge part of a vacuum heat insulation panel in order. The perspective view of the principal part which shows the folding structure of the ear | edge part of a vacuum heat insulation panel in order. The perspective view of the heat insulation box which comprises the refrigerator which shows 5th Embodiment, and a fixing tool Perspective view of refrigerator Perspective view of the inside of the refrigerator viewed from the right The perspective view which looked at the inside of a refrigerator from the left direction Vertical side view of heat insulation box Cross-sectional plan view schematically showing the refrigerator compartment inside the heat insulation box Exploded perspective view of split insulation wall Transverse plan view schematically showing the right part of the front side of the heat insulation box Cross-sectional plan view schematically showing the left corner of the heat insulation box The perspective view which shows the attachment state of the fixing tool provided in the corner part of the left back side of a heat insulation box. The perspective view which shows the state before a fixing tool is attached to the corner part of the left back side of a heat insulation box. The perspective view of the fixing tool provided in the corner part of the left back side of a heat insulation box Front view of the fixture provided at the corner on the left back side of the heat insulation box Exploded perspective view of a fixture provided at the corner on the left back side of the heat insulation box Sectional drawing which follows the AA line of FIG. Sectional drawing which follows the BB line of FIG. Sectional drawing which follows the CC line of FIG. Sectional drawing which follows the DD line of FIG. Sectional drawing which follows the EE line of FIG. Transverse plan view showing the mounting state of the fixture provided at the corner on the left back side of the heat insulation box (part 1) Transverse plan view (part 2) showing the mounting state of the fixture provided at the left back corner of the heat insulation box Cross-sectional plan view schematically showing the corner on the right back side of the heat insulation box The perspective view which shows the attachment state of the fixing tool provided in the corner part of the right back side of a heat insulation box. The perspective view which shows the state before a fixture is attached to the corner part of the right back side of a heat insulation box. The perspective view of the fixing tool provided in the corner part of the right back side of a heat insulation box Front view of the fixture provided at the corner on the right back side of the heat insulation box Exploded perspective view of a fixture provided at the corner on the right back side of the heat insulation box 59 is a sectional view taken along line FF in FIG. 59 is a sectional view taken along line GG in FIG. 59 is a sectional view taken along line HH in FIG. 59 is a sectional view taken along line II in FIG. Longitudinal front view showing the vicinity of the right end of the second partition member The perspective view which shows the state which attached the fixing tool to the division | segmentation heat insulation wall for left surfaces A vertical front view of the heat insulation box showing the sixth embodiment A cross-sectional plan view taken along section line RR in FIG. Longitudinal side view of an integrated body of the right outer plate and the right unit panel in the manufacturing process Diagram for explaining roll coat adhesive application Diagram showing manufacturing process (1) Diagram showing manufacturing process (2) Diagram showing the manufacturing process (Part 3) Diagram showing the manufacturing process (4) Diagram showing the manufacturing process (5) FIG. 67 equivalent view showing the sixth embodiment. 71 equivalent diagram 72 equivalent diagram 73 equivalent diagram 74 equivalent diagram A figure showing the reaction formula of hot melt, showing a reference example Similarly, a cross-sectional view of the vacuum insulation panel, outer plate, inner plate, hot melt decomposition state showing a reference example Similarly, showing a reference example, a cross-sectional view of the state of adhesion of the vacuum insulation panel, the outer plate, Cross-sectional view for explaining a carbon dioxide gas reservoir, also showing a reference example The exploded perspective view of the vacuum heat insulation panel regarding the other embodiment in the 1st embodiment (the 2), an outer plate part, and an inner plate part Longitudinal plan view after bonding The perspective view of the vacuum heat insulation panel which shows other embodiment (the 3) in 1st Embodiment The perspective view of the vacuum heat insulation panel which shows other embodiment (the 4) in 1st Embodiment. Side view of roll coater showing another embodiment (No. 5) in the first embodiment Perspective view of scraping member Side view of roll coater showing another embodiment (No. 6) in the first embodiment Top view of transfer roll

<First Embodiment>
First, the refrigerator 1 by 1st Embodiment is demonstrated with reference to FIGS. 1-18. The refrigerator 1 shown in FIG. 3 is mainly composed of a heat insulating box 2 having an opening formed on the front surface. On the front side of the heat insulating box 2, a kannon-type left-side rotary door 3, a right-side rotary door 4, and a plurality of drawer-type doors 5 to 8 are attached. Each of these doors 3-8 is comprised from the heat insulation door provided with the heat insulating material (not shown) inside. As shown in FIGS. 1 and 2, the left-side rotary door 3 and the right-side rotary door 4 are rotated by a pair of upper and lower hinge portions 3 a and 3 b attached to the heat insulating box 2, and a pair of upper and lower sides 4 a and 4 b. It is supported freely.

The heat insulating box 2 is configured by connecting a left heat insulating wall 9, a right heat insulating wall 10, an upper heat insulating wall 11, a lower heat insulating wall 12, and a back heat insulating wall 13 which are unit heat insulating walls. These heat insulating walls 9 to 13 will be described later.
Horizontal beam members 51, 52, and 53 are installed in the horizontal direction at the left and right edges of the opening of the heat insulation box 2. Further, the horizontal beam members 52 and 53 are provided with a vertical beam member 54 in the middle in the horizontal direction. Is installed vertically. A first partition wall 55 for partitioning the storage chamber is attached to the rear side of the cross beam member 51, and a second partition wall 56 for partitioning the storage chamber is attached to the rear side of the cross beam member 52. Yes.

  The first partition wall 55 forms a refrigerating chamber 57 as a storage chamber above the first partition wall 55 in the heat insulating box 2, and the second partition wall 56 is between the first partition wall 55 and the first partition wall 55. A vegetable room 58 is formed as a storage room. Further, as viewed from the front, in the space region between the horizontal beam member 53 and the horizontal beam member 53, the right side of the vertical beam member 54 is a small freezing room 59 as a storage room, and the left side is an ice making room 60 as a storage room. . And the space area below the cross beam member 53 when viewed from the front is a freezing room 61 as a storage room.

The refrigerator compartment 57 is opened and closed by the rotary doors 3 and 4. Further, the front opening of the vegetable compartment 58 is opened and closed by the pull-out door 5, and a vegetable container (not shown) is integrally attached to the rear face side of the pull-out door 5.
The small freezing chamber 59 has a front opening opened and closed by the pull-out door 6, and a frozen product storage container (not shown) is integrally attached to the back side of the pull-out door 6.
Further, the ice making chamber 60 has its front opening opened and closed by the pull-out door 7, and an ice receiving container (not shown) is integrally attached to the back side of the pull-out door 7.

Furthermore, the freezing chamber 61 has a front opening opened and closed by the pull-out door 8, and a to-be-frozen product storage container (not shown) is integrally attached to the back side of the pull-out door 8.
The second partition wall 56 is configured to have a heat insulating material such as polystyrene foam or urethane foam in order to adiabatically partition the vegetable room 58, the small freezer room 59, and the ice making room 60 having a large storage temperature difference. The first partition wall 55 is made of, for example, a synthetic resin plate material in order to partition the refrigeration room 57 and the vegetable room 58 that have a very small storage temperature difference.

  Now, the heat insulation box 2 and the heat insulation walls 9 to 13 will be described in detail. First, in FIGS. 2 to 4, the outer box 14 constituting the overall outline of the heat insulating box 2 includes a left outer plate part 14 </ b> A, a right outer plate part 14 </ b> B, and an upper outer plate part 14 </ b> C that constitute the left outer surface. And a lower outer plate portion 14D and a rear outer plate portion 14E. Each of these outer plate portions is made of a steel plate, and the left outer plate portion 14A and the right outer plate portion 14B are symmetrical.

  The inner box 15 constituting the inner surface of the heat insulating box 2 includes a left inner plate portion 15A constituting the left inner surface, a right inner plate portion 15B constituting the right inner surface, and an upper inner plate portion 15C constituting the upper inner surface. The lower inner plate portion 15D constituting the lower inner surface and the inner inner plate portion 15E constituting the inner inner surface are divided. That is, in this case, it has five inner plate portions.

  The left inner plate portion 15A and the right inner plate portion 15B have a bilaterally symmetric shape, and each includes a flat sheet member Sa made of, for example, synthetic resin (for example, ABS resin). In FIG. 5, the sheet member Sa is shown in a form in which a fixture 26, a shelf support 30, guide rail attachments 33 and 34, and partition wall supports 35 and 36, which will be described later, are attached in advance.

As shown in FIG. 6, the upper inner plate portion 15 </ b> C is made of a synthetic resin (for example, olefin resin) integrally formed product Ia integrally including an L-shaped portion 17 that bulges into the cabinet as a bent portion.
Further, as shown in FIG. 7, the lower inner plate portion 15D is formed of a synthetic resin integrally formed product Ib integrally including a drainage receiving portion 18 as a bent portion. These integrally molded products Ia and Ib are formed by injection molding or vacuum molding.

  Further, the back inner plate portion 15E is made of a flat sheet member Sb made of synthetic resin. The sheet member Sa and the sheet member Sb can be manufactured by extrusion molding or rolling molding without using a specially shaped molding die. Further, a commercially available flat sheet member may be used.

  Further, as shown in FIG. 4, a vacuum heat insulation panel 16 is provided between the outer box 14 and the inner box 15, and the vacuum heat insulation panel 16 is a left unit panel 16A which is a unit panel. A right unit panel 16B, an upper unit panel 16C (shown in FIG. 10), a lower unit panel (not shown), and a back unit panel 16E. Since each unit panel has the same basic configuration, for example, the left unit panel 16A will be described.

As shown in FIGS. 8 and 9, the left unit panel 16 </ b> A is configured by accommodating a base material 19 in a package 20 and sealing the inside thereof under reduced pressure by vacuum exhaust. The base material 19 is formed by compressing and curing a laminated material of inorganic fibers such as glass wool and forming into a plate shape. In order to obtain gas barrier performance, the envelope 20 includes a metal layer such as an aluminum vapor deposition layer or an aluminum foil layer. Each unit panel is also generally called a vacuum heat insulation panel.
As shown in FIG. 5, the left heat insulating wall 9 is provided with a left unit panel 16A disposed between the left outer plate portion 14A and the left inner plate portion 15A, and these three members are bonded together with an adhesive to provide unit heat insulation. It is configured as a wall.

  The front end portions of the outer box 14 and the inner box 15, that is, the front end portions of the left heat insulating wall 9 and the right heat insulating wall 10 are, as shown in FIG. 8, a synthetic resin front end connecting member 21 made of a synthetic resin. It is connected by. In this case, since the front end portion of the left heat insulating wall 9 and the front end portion of the right heat insulating wall 10 are bilaterally symmetric, the configuration of the front end portion of the left heat insulating wall 9 will be described.

  In the left heat insulating wall 9, the left outer plate portion 14A front end portion and the left inner plate portion 15A front end portion protrude forward from the left unit panel 16A, and are bent further inwardly to the left outer plate portion 14A. This bent portion 14Aa extends to the middle of the front end, and is configured not to enter the inside (storage chamber side) of the heat insulating box 2, and heat (outside air heat) of the outer box 14 (left outer plate portion 14A) is generated. Prevents transmission to the storage room.

  A heat insulating material such as a soft tape 22 is inserted and disposed in the internal space formed by the front end of the left unit panel 16A, the inner surface of the front end portion of the left outer plate portion 14A, and the inner surface of the front end connecting member 21. Instead of the soft tape 22, a polystyrene foam may be used.

The right heat insulating wall 10 is also configured in the same manner as the left heat insulating wall 9 (symmetrical shape).
Further, as shown in FIGS. 2 and 10, the upper heat insulating wall 11 has an upper unit panel 16C disposed between the upper inner plate portion 15C and the upper outer plate portion 14C, and the upper inner plate portion 15C and the upper unit. The panel 16C is bonded with an adhesive, and the urethane foam 24 is filled and solidified between the upper unit panel 16C and the upper outer plate portion 14C. In this case, as described above, the upper inner plate portion 15C is made of the synthetic resin integral molded product Ia integrally including the L-shaped portion 17 that bulges into the warehouse as the bent portion, and the upper As shown in FIG. 2, the outer plate portion 14 </ b> C similarly has an L-shaped portion 17 a, and the upper heat insulating wall 11 has a form in which the rear portion protrudes downward as a whole, in other words, a concave portion 11 a at the rear portion. Is formed. And the machine room 11b is comprised by the said recessed part 11a back space part of this upper side heat insulation wall 11, The compressor, the condenser, etc. of the refrigerating cycle are arrange | positioned at this machine room 11b.

  In FIG. 10, the interval between the upper unit panel 16C and the upper outer plate portion 14C (the portion filled with the urethane foam 24) is smaller than the thickness of the upper unit panel 16C, and the refrigeration cycle It is smaller than the outer diameter of the piping (suction pipe). As a result, the amount of urethane foam 24 used is reduced. In FIG. 10, when the piping of the refrigeration cycle is routed, the piping may be passed in the front-rear direction through the left end surface of the upper unit panel 16C, the upper end surface of the right unit panel 16A, and the outer plate portion 14C. good.

The machine room 11b is closed by a machine room cover 11c shown in FIG.
Further, as can be seen from FIG. 10 showing only the left end side, the left and right end portions of the upper outer plate portion 14C are spaced apart from the upper surface of the upper unit panel 16C and the left outer plate portion 14A and the right outer plate portion of the left heat insulating wall 9. 14B. Further, the upper inner plate portion 15C has a connecting portion 15C1 (see also FIG. 6) for connecting to the left inner plate portion 15A, which is the inner box side wall, on both side edges, and the distal end portion of the connecting portion 15C1. Is connected to the left inner plate portion 15A by a connector (not shown).

  In this case, the left connecting portion 15C1 will be described, but the right connecting portion has the same configuration (symmetrical shape). As shown in FIG. 10, a rib 15C2 that protrudes upward is formed on the inner side of the distal end portion of the connecting portion 15C1, and an insulating material leakage preventing member is provided between the rib 15C2 and the left inner plate portion 15A, for example. A soft tape 23 is inserted. Further, a heat insulating material, for example, the foamed urethane 24 is filled and solidified from above the upper unit panel 16 </ b> C to the inner corner, and in this case, the soft tape 23 prevents leakage when the foamed urethane 24 is filled.

  The lower heat insulating wall 12 is configured as a unit heat insulating wall by disposing a lower unit panel (not shown) between the lower outer plate portion 14D and the lower inner plate portion 15D and bonding these three members with an adhesive. . The lower heat insulating wall 12 may be configured by bonding the lower inner plate portion 15D and the lower unit panel and filling and solidifying urethane foam between the lower unit panel and the lower outer plate portion 14D. . In the lower heat insulating wall 12, the lowermost portion of the drainage receiving portion 18 communicates with the outside of the heat insulating box 2.

In addition, the back side heat insulation wall 13 also arrange | positions the back unit panel 16E between the back outer board part 14E and the back inner board part 15E, and adhere | attaches these three with an adhesive agent. In this case, a configuration in which urethane foam is filled and solidified as appropriate may be added.
In the integrally molded products Ia and Ib (the upper inner plate portion 15C and the lower inner plate portion 15D) made of the olefin resin, the bonding surface with the unit panel is surface-treated so as to be a rough surface, thereby bonding with the unit panel. Improving sex. Further, the sheet members Sa and Sb (the left inner plate portion 15A, the right inner plate portion 15B, and the inner depth plate portion 15E) made of ABS resin have good adhesion to the unit panel.

  Here, the connection structure of the left side heat insulation wall 9 and the back side heat insulation wall 13 is demonstrated with reference to FIG. 9, FIG. The left heat insulating wall 9 and the back heat insulating wall 13 are connected to each other by using a sheet member connecting plate 25 as a sheet member connecting member, a fixing member 26 as a protruding portion of a separate part from the sheet member, and the like. Further, the connection structure between the right heat insulation wall 10 and the back heat insulation wall 13 is the same as the connection structure between the left heat insulation wall 9 and the back heat insulation wall 13 (symmetrical). A connection structure with the side heat insulating wall 13 will be described.

  First, the fixture 26 will be described. The fixture 26 is made of synthetic resin, for example, ABS resin, and is attached to the left heat insulating wall 9 and the back heat insulating wall 13. Since the structure of the fixture 26 itself and the mounting structure thereof are the same in the left heat insulating wall 9 and the back heat insulating wall 13, the fixing tool 26 of the left heat insulating wall 9 will be described. The fixture 26 is made of a synthetic resin, has a slightly vertically long rectangular shape, and has hook-shaped portions 26a and 26a protruding in the vertical direction on one end side. Further, the fixing tool 26 is formed with a screw hole portion 26c from the other end surface toward one end portion.

  The fixture 26 is bonded directly to the left unit panel 16A with, for example, an adhesive before the left heat insulating wall 9 is assembled. And this fixing tool 26 is inserted and arranged from the back side to the front side in a slightly vertically long rectangular hole portion 15u formed in the left inner plate portion 15A (sheet member Sa) in advance. The back surface of the plate portion 15A (including the end surface on the left unit panel 16A side of the fixture 26) is bonded with an adhesive. In this case, the bowl-shaped portions 26a and 26a are sandwiched between the left inner plate portion 15A that is a sheet member and the left unit panel 16A that is a vacuum heat insulating panel. Thus, the fixture 26 is attached to the left heat insulating wall 9 and protrudes into the inner box 15. The fixtures 26 are provided at a plurality of positions on the left and right heat insulating walls 9 and the rear heat insulating wall 13 at adjacent positions.

  The sheet member connecting plate 25 has substantially the same length (height) as the left inner plate portion 15A, and the fixing members 26 are disposed at both lateral ends of the sheet member connecting plate 25. L-shaped concave portions 25a and 25a are formed corresponding to the above, and screw insertion holes 25b and 25b are formed in the concave portions 25a and 25a. Then, by screwing the screw 27 passed through the screw insertion hole portion 25b into the screw hole portion 26c of the fixture 26, the left inner plate portion 15A of the left heat insulating wall 9 and the inner plate of the rear heat insulating wall 13 are connected. The portion 15E is connected by the connecting member 25 for sheet member. The connecting plate for sheet member 25 is located at corners on both sides of the refrigerator compartment 57, the vegetable compartment 58, the small freezer compartment 59, the ice making room 60, and the freezer compartment 61.

In addition, a polystyrene foam 28 and a soft tape 29, which are heat insulating materials, are inserted and disposed in the space on the back side of the connecting plate 25 for the sheet member.
Further, the piping of the refrigeration cycle may be passed vertically through the expanded polystyrene 28 portion in FIG.

  Further, as shown in FIGS. 1 and 5, a synthetic resin shelf board support 30 is attached to the left heat insulating wall 9 and the right heat insulating wall 10 as a protruding portion that is a separate part from the sheet member. It has been. Since the mounting structure of the shelf support member 30 is the same in the left heat insulating wall 9 and the right heat insulating wall 10, the structure and mounting structure of the shelf support member 30 of the left heat insulating wall 9 are also referred to with reference to FIGS. explain.

  This shelf board support 30 has a configuration in which a shelf board support portion 30b is integrally projected at three positions on a plate-shaped main body portion 30a. A screw hole portion 30c as a fastening member engaging portion is formed at a position corresponding to the support portion 30b, and a countersunk counterbore 30d is formed at the opening peripheral portion of the screw hole portion 30c.

  Then, screw insertion hole portions 31 (only one is shown in FIG. 17) as fastening member insertion hole portions are formed at the upper and lower three portions of the left inner plate portion 15A of the left heat insulating wall 9 corresponding to the refrigerator compartment 57. ing. Before assembling the left heat insulating wall 9, a countersunk screw 32 as a fastening member is passed through the screw insertion hole 31 from the back side of the left inner plate 15 </ b> A and screwed into the screw hole 30 c of the shelf support 30. Thus, the shelf support member 30 is fixed to the inner surface of the left inner plate portion 15 </ b> A, and the shelf support member 30 is projected from the inner surface of the inner box 15 in the refrigerator compartment 57. In this case, in the process in which the countersunk screw 32 is screwed (screwed in), the countersunk screw head 32a of the countersunk screw 32 is a sheet member, so that the left inner plate part 15A can be slightly deformed. The peripheral edge of the screw insertion hole 31 is deformed into a dish shape (inflated to the inner side) until it hits the counterbore 30d. As a result, in the assembled state of the left heat insulating wall 9 shown in FIG. 18, the peripheral edge 31a of the screw insertion hole 31 is separated from the left unit panel 16A, and the flat head screw 32 is from the back surface of the left inner plate 15A. It becomes the form which does not protrude in the said left unit panel 16A direction.

  Furthermore, the inner surface 15 (both side surfaces) of the inner box 15 in the vegetable compartment 58 is provided with a guide rail fixture 33 (only the left one is shown) made of synthetic resin as a projecting portion that is a separate part from the sheet member. ing. In addition, the inner surface (both side surfaces) of the inner box 15 in the freezer compartment 61 is also provided with a guide rail fixture 34 (only the left one is shown) made of synthetic resin as a projecting portion that is a separate part from the seat member. ing.

  These guide rail attachments 33 and 34 are also attached to the left inner plate portion 15 </ b> A of the left heat insulating wall 9 and the right inner plate portion 15 </ b> B of the right heat insulating wall 10 by the same attachment structure as the shelf support 30. In addition, this guide rail attachment 33 is for attaching the guide rail which supports the said vegetable container integrated with the drawer-type door 5 so that pull-out is possible, and the guide rail attachment 34 is a drawer-type door 8 is for attaching a guide rail that supports the refrigerated product storage container integrated with 8 so as to be drawable.

  Further, on the inner surface (both side surfaces) of the inner box 15, there is a partition wall support 35 made of synthetic resin as a protruding portion configured as a separate part from the sheet member for supporting the first partition wall 55. In addition, a partition wall support 36 made of synthetic resin is provided as a projecting portion configured as a separate part from the sheet member for supporting the second partition wall 56. These partition wall supports 35 and 36 are attached by the same attachment structure as the fixture 26.

  Further, on the inner surface of the inner box 15 (the inner inner plate portion 15E made of the sheet member Sb) in the inner heat insulating wall 13, a synthetic resin rear surface as a protruding portion that is configured as a separate part from the sheet member at an appropriate place. A cover fixture 37 is provided. The back cover attachment 37 is for attaching a back cover for hiding a duct or the like disposed in the front portion of the back heat insulating wall 13 and is attached by the same attachment structure as the fixture 26.

The heat insulating walls 9 to 13 are not filled with urethane foam between the inner plate portions and the unit panels.
Further, an evaporator 64 of a refrigeration cycle is disposed at the back of the freezer compartment 61, and the drainage receiving portion 18 is located below the evaporator 64 to remove the adhering frost on the evaporator 64. Defrosted water or the like when frosted is received by the drain receiving part 18 and led out from the drain receiving part 18 to the outside lower part of the rear heat insulating wall 13.

  In addition, the structure of the connection part of the said cross beam member 52, the said left heat insulation wall 9, and the right heat insulation wall 10 is demonstrated with reference to FIG. In FIG. 15, a connecting portion between the cross beam member 52 and the left heat insulating wall 9 is shown, but the structure of the connecting portion at the right heat insulating wall 10 is basically the same in a left-right symmetric shape. The cross beam member 52 has a front partition plate 52a, a reinforcing plate 52b, a back partition cover 52c, and a heat insulating material 52d constituting the front surface portion. On the other hand, the left outer plate portion 14A of the left heat insulating wall 9 has a front surface portion 14A1, and the front end portion thereof is folded back.

  The front partition plate 52a is sandwiched between the reinforcing plate 52b and the folded portion 14A2 of the left outer plate portion 14A. That is, the end portion of the front partition plate 52a is directed to the back side of the folded portion 14A2, and the end portion of the reinforcing plate 52b is inserted to the back side of the front portion 14A1 of the left outer plate portion 14A. The front partition plate 52a is sandwiched as described above by screwing the screw 62 passed through the folded portion 14A2 into the screw hole of the reinforcing plate 52b. The front partition plate 52a and the reinforcing plate 52b are integrated in advance by screws 63. A rear partition cover 52c accommodating the heat insulating material 52d is attached to the rear side of the front partition plate 52a. By connecting the left and right edges of the front opening in the heat insulation box 2 with the front partition plate 52a described above, the left heat insulation wall 9 and the right heat insulation wall 10 are fixed, and the front opening in the heat insulation box 2 is opened or shrunk. Can be prevented, and the storage room can be kept in a rectangular parallelepiped.

When the strength of the front partition plate 52a is high, the reinforcing plate 52b may be omitted.
The back partition cover 52c has a mounting portion that protrudes downward (not shown), and this mounting portion is screwed by a fixing tool similar to the fixing tool 26.

  According to the first embodiment described above, the left inner plate portion 15A and the right inner plate portion 15B of the inner box 15 are configured by the flat sheet member Sa, and the back inner plate portion 15E is configured by the flat sheet member Sb. Therefore, the left inner plate portion 15A, the right inner plate portion 15B, and the back inner plate portion 15E do not require a molding die, are extremely easy to manufacture, and can contribute to a reduction in manufacturing cost. The upper inner plate portion 15C and the lower inner plate portion 15D, which are the other parts of the inner box 15, are formed as an integrally molded product using a mold, but compared to a case where the entire inner box 15 is formed as an integrally molded product using a large mold. Manufacturing is easy and the manufacturing cost can be reduced. In general, the cost of the refrigerator 1 can be reduced.

In this case, at least a part of the left inner plate portion 15A, the right inner plate portion 15B, the upper inner plate portion 15C, the lower inner plate portion 15D, and the back inner plate portion 15E may be formed of a sheet member.
In this embodiment, the inner box 15 has a left inner plate portion 15A, a right inner plate portion 15B, an upper inner plate portion 15C, a lower inner plate portion 15D, and a back inner plate portion 15E. The two inner plate portions, the left inner plate portion 15A, the back inner plate portion 15E, and the right inner plate portion 15B, are divided by separate sheet members, and between the adjacent inner plate portions. Between a certain left inner plate portion 15A and the back inner plate portion 15E, and between the right inner plate portion 15B and the deep inner plate portion 15E, as connecting members for sheet members that connect adjacent inner plate portions, respectively. The sheet member connecting plates 25 and 25 are provided.

  According to this, even if it is inner plate part 15A and 15E which consist of sheet members, and it is also inner plate part 15B and 15E which consists of a sheet member, it is the connection plate 25, 25 for sheet members of another part. Can be easily connected, and the assembly can be simplified.

  In the first embodiment, the outer box 14 is divided into a plurality of divided outer plate portions, in this case, the left outer plate portion 14A, the right outer plate portion 14B, the upper outer plate portion 14C, the lower outer plate portion 14D, and the rear outer plate. The inner box 15 is composed of a plurality of divided inner plate parts as in the outer box 14, in this case, the left inner plate part 15A, the right inner plate part 15B, the upper inner plate part 15C, and the lower inner plate part. 15D and back inner plate portion 15E, and among these inner plate portions, left inner plate portion 15A, right inner plate portion 15B and back inner plate portion 15E are formed from sheet members Sa and Sb, and a vacuum heat insulating panel 16 also includes a plurality of unit panels divided in this manner, in this case, a left unit panel 16A, a right unit panel 16B, an upper unit panel 16C, a lower unit panel (not shown), and a back unit panel 16E. The divided unit panels are arranged between the outer plate portion and the inner plate portion. The left heat insulating wall 9, the right heat insulating wall 10, the upper heat insulating wall 11, the lower heat insulating wall 12, and the back heat insulating wall 13 as a plurality of unit heat insulating walls are configured, and the heat insulating box 2 is made of these heat insulating walls. 9 to 13 were connected.

  According to this, the heat insulation box 2 can be comprised by assembling the heat insulation walls 9-13 provided with the unit panel which is a vacuum heat insulation panel, respectively, and an assembly is easy. Conventionally, since the heat insulation box was configured by assembling the outer box and the inner box which are not divided, the assembly work was large and the assembly work was large. Is also easy.

  Further, according to the first embodiment, the front end portion of the portion formed by the sheet member in the inner box 15 and the front end portion of the outer box 14 are connected by the connecting member 21 for the front end. Even if it is a part comprised by this, it can be easily assembled (joined) by the connecting member 21 for front ends which is a separate component from the outer case 14.

  In the first embodiment, the inner box 15 is provided with an L-shaped portion 17 which is a bent portion and a drainage receiving portion 18, and the upper inner plate portion 15 C which is a portion including the L-shaped portion 17 is The part 17 is composed of an integrally molded product, and the lower inner plate part 15D, which is a part provided with the drainage receiving part 18, is composed of an integrally molded product in which the drainage receiving part 18 is integrally formed.

According to this, the inner plate part having complicated shapes such as the L-shaped part 17 and the drainage receiving part 18 can be formed as an integrally molded product by a mold, thereby forming a complicated shaped part.
Further, in the first embodiment, the inner box 15 is provided with a fixture 26 that is a protruding part that is configured as a separate part from the sheet members Sa and Sb and protrudes into the cabinet, and the left heat insulating wall 9 is assembled. In the previous stage, the fixture 26 is bonded directly to the left unit panel 16A with, for example, an adhesive, and a hole 15u is formed in the sheet members Sa and Sb, and the fixture 15 is formed in the hole 15u. 26 is inserted and arranged.

  According to this, the fixing tool 26 can be positioned in the inner box 15 (sheet member) by inserting the fixing tool 26 into the hole 15u. Note that the partition wall supports 35 and 36 and the back cover attachment 37, which are projecting portions that are configured separately from the sheet members Sa and Sb and project into the storage, have the same mounting structure as the fixture 26. The partition wall supports 35 and 36 and the back cover attachment 37 can be positioned in the same manner.

  The fixing member 26 may be inserted and bonded to the hole 15u of the sheet member from the back side before the left heat insulating wall 9 is assembled. In this way, the fixing member 26 and the sheet member are bonded. Can be handled in an integrated state, and when the unit heat insulation wall is assembled, the unit panel and the integrated product can be bonded together, and the assembly workability is improved.

Further, as shown in FIG. 13, since the fixing surface of the fixing member 26 in the unit panel 16A is recessed, the fixing member 26 can be attached without bending the sheet member Sa.
Even if the unit panel 16A swells, the inner plate portion 15A is composed of the sheet member Sa, and therefore, the inner plate portion 15A may be slightly deformed without cracking.
In addition, the above-described fixture 26, shelf support 30, guide rail fixtures 33, 34, and partition wall supports 35, 36 attached to the sheet members Sa, Sb are common to the heat insulation boxes of different types of refrigerators. Can be used for

  According to the first embodiment, the fixture 26 is directly bonded to the left unit panel 16A, the right unit panel 16B, and the back unit panel 16E, which are vacuum heat insulating panels, and fixed to the unit panels 16A, 16B, and 16E. When the fixture 26 is inserted into the hole portion 15u of the inner left plate portion 15A made of the sheet member Sa, the right inner plate portion 15B, and the inner inner plate portion 15E made of the sheet member Sb, the fixture 26, the inner plate portions 15A, 15B, 15E and the unit panels 16A, 16B, 16E can be naturally aligned. In this case, since the fixing tool 26 to be bonded is made of ABS resin having good adhesiveness, the bonding strength between the fixing tool 26 and each unit panel can be increased.

  Further, since the partition wall supports 35 and 36 and the back cover mounting tool 37 have the same mounting structure as the fixing tool 26, the partition wall supports 35 and 36 and the back cover mounting tool 37 are also connected to the inner plate portions. It can contribute to alignment with each unit panel.

The fixture 26 may be bonded to the left unit panel 16A, the right unit panel 16B, and the back unit panel 16E via separate members.
In the first embodiment, the fixture 26 is configured to have flanges 26a and 26a larger than the hole 15u, and the flanges 26a and 26a are respectively formed on the sheet member Sa (left). The inner plate portion 15A, the right inner plate portion 15B), Sb (back inner plate portion 15E), and the unit panel corresponding thereto are sandwiched.

  According to this, the hook-like portions 26a and 26a can prevent the fixture 26 from coming off from the hole 15u. Further, the hook-shaped portions 26a and 26a can be bonded to the corresponding inner plate portion, which can contribute to the improvement of the strength of the corresponding inner plate portion. Also, since the flanges 26a, 26a are thin, they can be bent and inserted into the hole 15u from the inner surface of the inner plate portion, and inserted between the inner plate portion and the unit panel. It becomes.

Moreover, in this 1st Embodiment, the shelf board support tool 30 is provided as a protrusion part comprised by separate components from the sheet | seat member Sa, and protrudes in a store | warehouse | chamber, and this sheet member Sa (left inner plate part 15A, right inner plate | board | A screw insertion hole 31 is formed in the plate 15B), and the shelf support 30 is attached to the surface of the sheet member Sa by a countersunk screw 32 (fastening member) inserted through the screw insertion hole 31 from the back side of the sheet member Sa. It was set as the structure fixed to the side.
According to this, the shelf board support tool 30 which is a separate component can be attached to the sheet member Sa with the countersunk screws 32 which are fastening members. In this case, the fastening member may be a rivet for fastening the sheet member Sa and the shelf board support 30 together.

  In the first embodiment, the peripheral edge 31a of the screw insertion hole 31 is separated from the left unit panel 16A and the right unit panel 16B, which are vacuum heat insulation panels, and the screw head 32a of the countersunk screw 32 is the screw. It was set as the structure which does not protrude from the peripheral part 31a of the insertion hole part 31 to the left unit panel 16A side and the right unit panel 16B side, respectively.

  According to this, since the screw head portion 32a does not protrude from the back surfaces of the inner plate portions 15A and 15B, the screw head portion 32a does not contact the unit panels 16A and 16B. , 16B can be prevented from being broken. Further, the adhesion between the left unit panel 16A and the left inner plate portion 15A and the adhesion between the right unit panel 16B and the right inner plate portion 15B are not inhibited. Furthermore, in this case, the peripheral edge portion 31a of the screw insertion hole portion 31 in the sheet member Sa is formed of the counterbore screw 32 by forming the opening peripheral edge countersunk counterbore 30d of the screw hole portion 30c of the shelf support 30. When tightened, the peripheral edge 31a is naturally separated from the left unit panel 16A and the right unit panel 16B by being deformed in the direction of the counterbore 30d, and the sheet member Sa has a recess for accommodating the screw head 32a. There is no need to form.

  Since the guide rail attachments 33 and 34 have the same attachment structure as that of the shelf board support 30, the guide rail attachments 33 and 34 have the same effects. Further, the same effect can be obtained with respect to the shelf support 30 and the guide rail attachments 33 and 34 (not shown) provided on the right heat insulating wall 10.

Moreover, the said vacuum heat insulation panel 16 may be comprised as follows as another example.
Here, the configuration of the vacuum heat insulation panel of another example will be briefly described with reference to FIG. 32 and FIG. As shown in FIG. 32, the vacuum heat insulation panel 16 is configured by accommodating a mat-shaped core material 109 in a bag body 110 and sealing the interior of the bag body 110 while keeping the inside of the bag 110 in a vacuum reduced pressure state. is there. The core material 109 is formed by solidifying a material having high heat insulation performance, for example, glass wool, which is a cotton-like product of fine glass fibers, into a mat shape (rectangular plate shape). The bag body 110 is a peripheral portion excluding one short side, for example, by laminating two films having a high gas barrier property obtained by laminating an aluminum foil and a synthetic resin film (or made of an aluminum vapor deposition film) into a rectangular shape. The three sides are heat-sealed in a U shape to form a bag shape in which the core material 109 is accommodated almost densely.

  In manufacturing the vacuum heat insulation panel 16, first, the core material 109 is inserted and accommodated from the opening (one short side) of the bag 110, and then the opening of the bag 110 is connected to a vacuum pump. Then, the inside is evacuated and decompressed. And the opening part of the bag body 110 is sealed with a heat seal, maintaining pressure reduction. However, in this state, as shown in FIGS. 32A and 33A, the four sides of the bag body 110 are provided with wide ear portions 110a as heat sealing margins that protrude from the core material 109 to the periphery. ing.

Therefore, as shown in FIG. 33 (b), the long-side ear portion 110a is folded back to the upper surface side, and then, as shown in FIGS. 32 (b) and 33 (c), the short-side ear portion. 110a is folded back to the upper surface side. The vacuum insulation panel 16 is obtained by stopping these folded portions F with an adhesive tape.
When the vacuum heat insulating panel 16 is disposed in the heat insulating walls 9 and 13 shown in FIG. 9, the folded portion F of the ear portion 110a is insulated in the sheet member connecting plate 25 or the space portion on the back side thereof. It is good to arrange | position in the position which is covered with the polystyrene foam 28 which is material, and is hidden.

This is because the folded portion F is thicker than the other portions, so that only that portion swells, and when it is bonded to the inner plate portions 15A and 15B, the portion of the inner plate portion corresponding to the folded portion F also swells and looks good. However, the bulge can be hidden by covering with a covering means such as the connecting plate 25 for the sheet member.
Further, the covering means such as the sheet member connecting plate 25 and the polystyrene foam 28 are separate parts from the heat insulating walls 9 and 13 and are detachable parts. Therefore, the corresponding portions of the inner plate portions 15A and 15B swollen by the folded portion F are provided. Even if the inner plate portions 15A and 15B are swollen by adjusting the way of attaching these covering means, they can be attached with a good appearance.
Moreover, these vacuum heat insulation panels 16 may make the bag body 110 double.
Specifically, the vacuum heat insulation panel 16 is further housed in a bag body made of the same material as the bag body 110, and the vacuum pressure reduction state is applied. Similarly, the ear portions 110a of the second bag body are welded and sealed.
Then, when the ear portion 110a of the second bag body is further bent, the folded portion F is formed to be thicker, so that there is a problem that the corresponding portion of the inner plate portions 15A and 15B swells. Can be effectively eliminated.

In addition, when the vacuum heat insulation panel 16 in which the bags are doubled is used, another good effect is obtained.
As shown in FIG. 9, at the place R where the heat insulating walls 9 and 13 are connected, the connecting portion R between the left outer plate portion 14A and the right outer plate portion 14E of the adjacent outer plate portions that are not continuously formed is minimized. There are cases where a phenomenon such as inflow of cold air easily occurs.

And when a vacuum leaks from the bag body 110 of the said vacuum heat insulation panel 16, there exists a subject that heat insulation cannot be ensured simultaneously with the phenomenon that this cold air flows.
However, if the vacuum heat insulation panel 16 having a double bag body is used, the problem that the heat insulation cannot be maintained when one bag body breaks or cracks and a vacuum leak occurs is caused by the other bag body. Since a vacuum can be maintained, heat insulation can be maintained and the problem can be solved.

Especially for a heat insulating wall not using urethane foam, there is a problem that there is no alternative heat insulating means other than the vacuum heat insulating panel 16 when a vacuum leak occurs. Is more effective.
In this case, it is more important to maintain the heat insulation of the room having a high temperature difference from the outside air. Therefore, it is preferable to arrange the vacuum heat insulation panel 16 having at least double bags on the surrounding heat insulation wall of the freezing room 61.
For example, even when a plurality of vacuum heat insulation panels are arranged on one heat insulation wall, the vacuum heat insulation panel 16 in which the bags are doubled may be used as the vacuum heat insulation panel arranged on the peripheral wall of the freezer compartment 61.

And when both sides use a metal vapor-deposited film (for example, an aluminum vapor-deposited film), the bag is easy to leak because the film is thin, but it prevents the vacuum leak by using a double bag. can do.
And when such a vacuum heat insulation panel 16 is adhere | attached with an inner-plate part or an outer-plate part with an adhesive agent, gas, such as a carbon dioxide, may be generated by the component of an adhesive agent. When this gas is generated, bubbles accumulate, and there are problems such as poor adhesion accuracy.

In that case, it is preferable to provide a path through which gas escapes from the heat insulation wall without coating the entire surface of the vacuum heat insulation panel 16 and the inner and outer plate portions with the adhesive.
For example, as shown in FIG. 9, by forming holes such as the holes 15 u in the inner plate portion 15 </ b> A, the gas can be extracted from the locations, and the vacuum heat insulating panel 16 is provided with a groove or a spacer. By extending the groove to the end or the hole formed in the inner plate portion, a path through which the gas escapes can be configured, and in addition, a thin linear path not coated with an adhesive is provided, and the end of the vacuum heat insulating panel 16 Or a path through which gas escapes can be formed by connecting to the hole formed in the inner plate portion.

These gases (especially carbon dioxide) are generated particularly when reactive hot melt is used as an adhesive. The reactive hot melt adhesive is applied in a heated and melted state, and a material to be adhered is pressed. Allow to cool and solidify. And as reactive groups react with moisture in the air over time to cause a crosslinking reaction, high adhesive strength and heat resistance can be obtained, but gas (especially carbon dioxide) may be generated at the same time. Yes.
Specific examples of the reactive hot-melt adhesive include a polyurethane-based adhesive having carbon, a polyolefin-based adhesive, and a polyurethane-based hot-melt adhesive.

  Among them, the polyurethane-based hot-melt adhesive is mainly composed of a urethane prepolymer having an isocyanate group, and when it is melt-coated like a normal hot-melt adhesive, it is cooled and cured while leaving the isocyanate group. Thereafter, the isocyanate group reacts with moisture contained in the air or the adherend to cause a chain extension reaction and a cross-linking reaction, resulting in adhesion and heat resistance.

  The case where the said vacuum heat insulation panel 16 and an inner-plate part and an outer-plate part are adhere | attached with a hot-melt-adhesive is demonstrated still more concretely. In a reactive hot melt that reacts with polyurethane hot melt, so-called water (humidity), and exhibits adhesive strength, the NCO group reacts with moisture (humidity) as shown in FIG. 81 shown as a reference example of the first embodiment. Carbon dioxide gas (carbon dioxide) is generated in the process. Thereafter, the OCN (isocyanate group) group undergoes a chain extension reaction or a bridge reaction, revealing a urea bond, an allohanate bond, or a biuret bond, and becomes a strong adhesive.

  As shown in FIG. 82, the hot melt M is applied to one surface of the vacuum heat insulating panel 16, and the outer plate portion 14 (14A to 14E is collectively referred to as 14) is pressed against the hot melt M to bond them together. Further, hot melt M is applied to the other surface of the vacuum heat insulation panel 16, and the inner plate portion 15 (14A to 15E is collectively referred to as 15) is pressed against the hot melt M to bond them together (see FIG. 83). . In this way, a heat insulating wall is formed. After the adhesion, the carbon dioxide gas described above is generated from the hot melt M over time, and there is no escape for the carbon dioxide gas. As shown in FIG. 84, the vacuum heat insulating panel 16 and the outer plate portion 14 During this time, a gas reservoir Bh of carbon dioxide gas is generated between the vacuum heat insulation panel 16 and the inner plate portion 15. For this reason, these vacuum heat insulation panels 16, the outer plate part 14, and the inner plate part 15 will bulge and deform.

  In order to deal with such a problem, as described above, a path through which gas (carbon dioxide gas) escapes from the heat insulating wall is provided. That is, as shown in FIGS. 85 to 86, the concave groove 301 is formed on one surface or the other surface of the vacuum heat insulating panel 16. The concave groove 301 is continuous to both ends of the vacuum heat insulating panel 16.

Further, gas venting portions 302 (holes in this case) are formed in the inner plate portion 15 at appropriate intervals.
In this vacuum heat insulating panel 16, one surface where the concave groove 301 exists and the outer plate part 14 are bonded by hot melt M. Further, the other surface of the vacuum heat insulating panel 16 and the inner plate portion 15 are bonded by hot melt M, so that a heat insulating wall is formed. A cross section of the heat insulation wall is shown in FIG.

  Carbon dioxide gas is generated after the bonding of the hot melt M. According to this embodiment, since the concave groove 301 is formed in the vacuum heat insulating panel 16 on one surface which is the bonding surface with the outer plate portion 14, The carbon dioxide gas generated in the hot melt M applied on one surface escapes from the heat insulating wall through the concave groove 301, and the above-mentioned carbon dioxide gas pool can be prevented. In this case, the groove 301 may be formed on the surface of the vacuum heat insulating panel 16 that is bonded to the inner plate portion 15.

  As described above, the vacuum heat insulating panel 16 and the plate portion (the outer plate portion 14 and / or the inner plate portion 15) are bonded by the reactive hot melt M to form the heat insulating wall of the heat insulating box. The concave groove 301 is formed on the surface on the adhesion side with the plate portion. Thereby, generation | occurrence | production of a carbon dioxide gas pool can be prevented.

  Further, according to this embodiment, the gas venting portion 302 is formed in the inner plate portion 15. According to this, the carbon dioxide gas generated from the hot melt M between the inner plate portion 15 and the vacuum heat insulation panel 16 can escape from the gas vent portion 302 to the outside of the heat insulation wall, and the carbon dioxide gas described above. Generation of accumulation can be prevented. In this case, since the degassing portion 302 is configured from a hole, the manufacture is easy.

  In particular, if the inner plate portion 15 is an inner plate portion for a door, a bulging portion for a pocket projecting to the inner surface side is provided. You can also. Note that the gas vent portion 302 may be formed in the outer plate portion 14.

  As described above, the vacuum heat insulating panel 16 and the plate portion (the outer plate portion 14 and / or the inner plate portion 15) are bonded by the reactive hot melt M to form the heat insulating wall of the heat insulating box body. By forming the extraction portion 302, it is possible to prevent the occurrence of a carbon dioxide gas pool.

  Also, as shown in FIG. 87, an embodiment in which a gas distribution member 303 capable of flowing carbon dioxide gas may be provided on the adhesion-side surface (both sides or one side) of the vacuum heat insulation panel 16 may be used. In this case, the gas flow member 303 is made of soft urethane that is thin and capable of gas flow, open-cell sponge, paper aggregate, cardboard, and the like. In this case, the gas flow member may be provided on the adhesion side surface of the outer plate portion 14 or the inner plate portion 15.

As described above, the vacuum heat insulating panel 16 and the plate portion (the outer plate portion 14 and / or the inner plate portion 15) are bonded by the reactive hot melt M to form the heat insulating wall of the heat insulating box. By providing a thin gas flow member 303 on at least one of the bonding side surface and the bonding side surface of the plate portion, the generation of carbon dioxide gas pool can be prevented.
Further, as shown in FIG. 88, a configuration may be employed in which hot melt M is applied in a stripe pattern on the surface of the vacuum heat insulation panel 16 on the hot melt application side of the vacuum heat insulation panel 16 (which may be both surfaces or one surface).

  As described above, the vacuum heat insulating panel 16 and the plate portion (the outer plate portion 14 and / or the inner plate portion 15) are bonded by the reactive hot melt M to form the heat insulating wall of the heat insulating box. The hot melt M is applied in a striped manner, and the vacuum heat insulation panel 16 and the mating plate portions 14 and 15 are adhered to each other, thereby covering the space between the vacuum heat insulation panel 16 and the mating plate portions 14 and 15. An adhesion portion (a minute gap) is formed, carbon dioxide gas can be released, and generation of carbon dioxide gas pool can be prevented.

  In this case, as a method for applying the striped hot melt M (part 1), a masking tape is applied in advance to the surface of the vacuum heat insulation panel 16 where the hot melt M is applied, and then the hot insulation on the vacuum heat insulation panel 16 is hot. There is a method of applying the melt M and then removing the masking tape.

  As another stripe hot melt M coating method (part 2), the method shown in FIGS. 89 and 90 may be used. This method is a coating method using a roll coater 304 (also referred to as a roll coat). That is, the roll coater 304 includes an under roll 305, a main roll 306, and a touch roll 307, and a comb that scrapes the hot melt M from the main roll 306 intermittently below the main roll 306 and the touch roll 307. A scraping member 308 having a tooth shape is provided. The hot melt M is supplied between the main roll 306 and the touch roll 307. Each roll 305-307 is rotated as shown in FIG. The hot melt M adheres to the surface of the main roll 306, but is intermittently scraped off by the comb teeth 308 a of the scraping member 308. Applied. Thereby, the hot melt M is applied to the vacuum heat insulating panel 16 in a stripe shape.

  As another stripe hot melt M coating method (part 3), a method using a roll coater 309 according to FIGS. 91 and 92 may be used. The roll coater 309 includes the under roll 305, the main roll 306, and the touch roll 307, but the main roll 306 is separated from one surface (application surface) of the supplied vacuum heat insulation panel 16. A transfer roll 310 is provided in contact with the main roll 306 and in contact with one surface of the vacuum heat insulation panel 16.

  The transfer roll 310 has a configuration in which large-diameter portions 310a having small diameters and small-diameter portions 310b having small diameters are alternately arranged in the axial direction, and the large-diameter portions 310a are connected to the main roll 306 and the vacuum heat insulating panel 16. Contact. The scraping member 308 is not provided. Each roll 305-307, 310 is rotated as shown in FIG.

According to this configuration, after the hot melt M adheres to the surface of the main roll 306, it is transferred to the large diameter portion 310a of the transfer roll 310, and the hot melt M transferred to the large diameter portion 310a is vacuum insulated panel. 16 on one side. As a result, the hot melt M is applied to the vacuum heat insulating panel 16 in a stripe shape.
In addition, the ratio of the width of the hot melt M to the width of the non-hot melt portion in the striped hot melt M can be set as appropriate.

The storage room layout is refrigerated room 57, vegetable room 58, small freezer room 59, ice making room 60, and freezer room 61 in order from the top, but freezer room 61 that is a freezing temperature zone is a refrigerating room that is a freezer temperature zone. It is good to place between the vegetable rooms.
The stepped heat walls 9 to 13 are connected to form the heat insulating box 2, and the outer plate portion is screwed to each wall to form a gap.
Then, if there is a difference between the temperature outside the heat insulating box 2 and the temperature in the storage room, an air flow is generated in which warm outside air moves from the gap to the storage room side.

When the outer box is divided and configured by a plurality of outer plate parts, there is a problem that the wind flows from the connecting seam to the corner part between the outer box and the inner box and dew is attached, In particular, the temperature difference between the freezer compartment and the outside air is the highest, and the amount of air entering increases.
However, by installing the freezing room between the refrigerating room and the freezing room at a position that does not contact the upper heat insulating wall 11 and the lower heat insulating wall 12, the left and right sides of the bottom side and the left and right sides of the bottom surface are in contact with the corner. Since only the left and right corners of the back side are positioned in the freezer compartment, not the five sides of the back and the back, the contact area with the joint can be reduced, and the inflow amount of cold air can be reduced. be able to.

In particular, a heat insulating wall having a wall structure such as the L-shaped portion 17 that is a bent portion that forms a machine room for storing a compressor or the like has many joints. Therefore, it is desirable to dispose the freezer room at a location that does not contact the machine room. .
Further, in this case, when the upper heat insulating wall 11 and the lower heat insulating wall 12 are not filled with the foamed urethane 24, the problem of dew is particularly noticeable, and the freezer compartment is arranged in the center of the upper and lower sides. By doing so, dew can be prevented more effectively.
In this case, if a heat insulating material of a molded product is disposed in the corner portion between the outer box and the inner box instead of the urethane foam 24, heat insulation can be achieved.

Here, a modified example of the covering means such as the sheet member connecting plate 25 and the polystyrene foam 28 will be described.
These covering means do not need to be a separate body, but may be a single body. Then, there is a problem that it is difficult to assemble if it is a separate body, but there is an effect that it is easy to assemble if it is a single body. For example, what is necessary is just to arrange | position the fixing tool 51V of 5th Embodiment mentioned later instead.

Second Embodiment
FIGS. 19 to 27 show a second embodiment. In the second embodiment, the structures of the left heat insulating wall 9 ′ and the right heat insulating wall 10 ′ are different from those of the first embodiment. Hereinafter, different points will be described. Since the left heat insulating wall 9 'and the right heat insulating wall 10' are symmetrical, the left heat insulating wall 9 'will be described. In this left heat insulating wall 9 ′, the left inner plate portion 15A ′, which is a part of the inner box 15, has shelf plate support portions 40a, 40b, 40c, guide rail mounting portions 41a, 41b, partition wall support portions as protruding portions. 42a and 42b. The left inner plate portion 15A ′ including these shelf plate support portions 40a, 40b, and 40c, guide rail mounting portions 41a and 41b, and partition wall support portions 42a and 42b includes these shelf plate support portions 40a, 40b, and 40c. The guide rail mounting portions 41a and 41b and the partition wall support portions 42a and 42b are integrally formed from an integrally molded product Ic. The integrally molded product Ic is formed by molding using a mold, for example, injection molding or vacuum molding.

  Further, a sheet member as a connecting member for a sheet member for connecting the left inner plate portion 15A ′ to the inner plate portion 15E (sheet member Sb) of the inner heat insulating wall 13 at the inner end portion of the left inner plate portion 15A ′. The connecting portion 25 ′ is integrally formed. The sheet member connecting portion 25 ′ is connected to the back heat insulating wall 13 by the fixture 26 attached to the above-described back inner plate portion 15 E.

The shelf board support portions 40a, 40b, 40c and the guide rail attachment portions 41a, 41b have different lengths in the front-rear direction (the guide rail attachment portions 41a, 41b are long) but have the same cross-sectional shape. Since the reinforcing structure described in the above is the same, the shelf support portion 40a will be described.
As shown in FIGS. 22 to 25, the shelf board support portion 40 a protrudes from the left inner plate portion 15 </ b> A ′, which is an integrally molded product Ic, so as to bulge in the direction of the interior, and a part of the inner surface portion. A screw boss portion 43 is formed on the surface. The screw boss portion 43 is formed with a screw hole portion 43a.

  A reinforcing plate 44 made of, for example, a metal plate, as a reinforcing member, is attached to the inner surface portion of the shelf plate support portion 40a in the left inner plate portion 15A ′. That is, the reinforcing plate 44 is formed in a shape along the inner surface of the shelf board support portion 40a, has a boss portion fitting portion 44a, and a screw insertion hole portion 44b is formed in the boss portion fitting portion 44a. ing. The reinforcing plate 44 is attached to the inner surface of the shelf board support portion 40a by applying the reinforcing plate 44 to the inner surface portion of the shelf board support portion 40a and screwing the screw 45 passed through the screw insertion hole portion 44b into the screw hole portion 43a. Therefore, the shelf board support portion 40a is reinforced.

  The partition wall support portions 42a and 42b correspond to the partition wall support members 35 and 36 of the first embodiment, and as shown in FIGS. 26 and 27, the inner surfaces of the partition wall support portions 42a and 42b. A reinforcing plate 46 made of, for example, a metal plate as a reinforcing member is attached by screws 47V. Accordingly, the partition wall support portions 42 a and 42 b are reinforced by the reinforcing plate 46.

  The above-described reinforcing plates 44 and 46 may be screwed as necessary, and instead may be fixed by adhesion. In short, the reinforcing plates 44 and 46 are connected to the left unit panel 16A and the left inner plate portion 15A. ′ (Integral molded product), and the reinforcing plates 44 and 46, respectively, are shelf plate support portions 40a, 40b and 40c, guide rail mounting portions 41a and 41b, partition wall support portions 42a, What is necessary is just to reinforce 42b.

  In this second embodiment, the inner box 15 is provided with shelf board support parts 40a, 40b, 40c, guide rail mounting parts 41a, 41b, partition wall support parts 42a, 42b, which are protruding parts protruding into the cabinet, The left inner plate portion 15A ′, which is a portion including the shelf plate support portions 40a, 40b, and 40c, the guide rail mounting portions 41a and 41b, and the partition wall support portions 42a and 42b, is connected to the shelf plate support portions 40a, 40b, and 40c. The guide rail mounting portions 41a and 41b and the partition wall support portions 42a and 42b are integrally formed from an integrally molded product Ic, and the shelf support portions 40a, 40b and 40c of the integrally molded product Ic and the guide rail mounting portion 41a. 41b and the partition wall support portions 42a and 42b are reinforcing plates that are reinforcing members provided between the unit panel 16A that is a vacuum heat insulating panel and the integrally molded product Ic. It has been reinforced by 4,46.

  According to this embodiment, since the shelf support parts 40a, 40b, 40c, which are protrusions, the guide rail mounting parts 41a, 41b, and the partition wall support parts 42a, 42b are provided in the integrally molded product Ic, these protrusions It is not necessary to configure with separate parts. In the case of an integrally molded product, an olefin resin (polypropylene material, etc.) having a slightly lower strength (lower than the ABS resin) is used in consideration of the low material cost. 46 can be supplemented.

<Third Embodiment>
28 and 29 show a third embodiment. In the third embodiment, the configurations of the left heat insulating wall 9 ″ and the right heat insulating wall 10 ″ are different from those of the first embodiment and the second embodiment. Hereinafter, different points will be described. In this case, since the left heat insulating wall 9 ″ and the right heat insulating wall 10 ″ are symmetrical, the left heat insulating wall 9 ″ will be described. In the left heat insulating wall 9 ″, the left inner plate portion 15A is divided into an upper plate portion 15Aa and a lower plate portion 15Ab with respect to one unit panel 16A. The upper plate portion 15Aa and the lower plate portion 15Ab are adjacent to each other in the vertical direction. The upper plate portion 15Aa is configured as an integrally molded product Id by, for example, injection molding or vacuum molding, and integrally has projections 40a, 40b, and 40c as in the second embodiment, and is connected to a sheet member. The unit 25 ′ is integrally formed. The sheet member connecting portion 25 ′ is located in the refrigerator compartment 57, but the sheet member connecting plate 25 ″ located in the vegetable compartment 58, the small freezer compartment 59, the ice making chamber 60 and the freezer compartment 61 is composed of the upper plate portion 15 Aa and The lower plate portion 15Ab is provided as a separate component.

Further, the lower plate portion 15Ab is composed of a flat sheet member Sc. Similarly to the first embodiment, the fixture 26, the guide rail mounting tools 33, 34, The partition wall supports 35 and 36 are attached by the same attachment structure as that of the first embodiment.
The above-described upper plate portion 15Aa is located in the refrigerator compartment 57 to constitute the inner surface of the refrigerator compartment 57, and the lower plate portion 15Ab is located over the vegetable compartment 58, the small freezer compartment 59, the ice making room 60, and the freezer compartment 61. The inner surfaces of these chambers are configured. A first partition wall 55 is disposed at a boundary portion between the upper plate portion 15Aa and the lower plate portion 15Ab.

  In this 3rd Embodiment, since the inner surface of the refrigerator compartment 57 provided with the rotary doors 3 and 4 was comprised by the upper side board part 15Aa which consists of integral molded products Id, the appearance of the refrigerator compartment 57 inner surface is good. That is, the inner surface of the refrigerating room 57 is where the user's eyes can reach when the revolving doors 3 and 4 are opened, and often the eyes also reach the shelf support portions 40a, 40b, and 40c that are the protruding portions. However, since the shelf support portions 40a, 40b, and 40c on the inner surface of the refrigerator compartment 57 are integrated with the integrally formed product Id by molding, these shelf support portions 40a, 40b, and 40c are smoothly formed from the upper plate portion 15Aa. , It looks good and the impression on hygiene is also improved.

<Fourth embodiment>
30 and 31 show a fourth embodiment. In this embodiment, the inner side of the inner box 15 (the left inner plate portion in the figure) is provided on the periphery of the main body portion 30a of the shelf board support 30 in the first embodiment. The point which formed the elastically deformable fin part 30e which inclines to the (15A side) differs from 1st Embodiment.
The fin portion 30e is in close contact with the inner surface of the inner box 15 when the shelf board support 30 is attached. The gap between the inner surface of the inner box 15 and the shelf board support 30 can be hidden by the fin portion 30e. That is, when the countersunk screw 32 is screwed into the screw hole 30c of the shelf support 30, the peripheral edge 31a of the screw insertion hole 31 of the left inner plate 15A is deformed. In some cases, wrinkles may occur, which may cause a gap between the left inner plate portion 15A and the shelf support 30. However, according to the fourth embodiment, the gap can be hidden by the fin portion 30e described above.

<Fifth Embodiment>
Hereinafter, the fifth embodiment will be described with reference to FIGS. 34 to 66.
First, the refrigerator 11V shown in FIG. 35 includes the heat insulating box 12V shown in FIGS. 34 to 39 and a refrigeration cycle (not shown) for cooling the heat insulating box 12V.
As shown in FIGS. 38 and 39, the heat insulating box 12V includes an outer box 13V, an inner box 14V, and a heat insulating member 15V provided between the outer box 13V and the inner box 14V. . The heat insulation box 12V is formed in a box shape with an open front, and forms an accommodation space, for example, a storage room, a space in which a duct is provided if necessary, inside the inner box 14V.

  The outer box 13V is made of steel and has a box shape with an open front surface. As shown in FIGS. 34 and 36 to 39, the outer box 13 </ b> V is configured by combining walls made of a plurality of outer plates obtained by dividing the outer box 13 </ b> V into a plurality of parts. Specifically, the outer box 13V includes a plate-like top wall 16V, a plate-like bottom wall 17V, a plate-like right wall 18V, a plate-like left wall 19V, and a plate-like back wall 20V. It is configured. The top wall 16V has a stepped shape in the front-rear direction, the front part has a flat plate shape parallel to the bottom wall 17V, and the rear part is located below the front part and has a flat plate shape parallel to the bottom wall 17V. Yes. The right side wall 18V and the left side wall 19V have a symmetrical shape. A machine room 21V is formed on the rear portion of the upper surface wall 16V, as shown in FIGS. The machine room 21V is provided with a compressor (not shown) that constitutes the refrigeration cycle described above. As shown in FIG. 38, a separation portion 211V is formed on the floor surface of the machine room 21V. The separation part 211V is an opening formed by providing a gap between adjacent heat insulating members 15V. In this embodiment, the heat insulation member 15V located on the upper surface of the heat insulation box 12V and the heat insulation member 15V located on the back surface are arranged apart from each other, thereby forming a separation portion 211V. In addition, a component storage chamber 212V for storing components used for refrigeration, freezing, control, etc., a condenser, and the like is formed in the lower part of the rear portion of the heat insulating box 12V. A separation portion 213V is formed on the upper surface of the component storage chamber 212V. The separation portion 213V is formed by disposing the heat insulation member 15V located on the bottom surface of the heat insulation box 12V and the heat insulation member 15V located on the back surface.

  The inner box 14V is made of resin, has a box shape with an open front, and is provided inside the outer box 13V. As shown in FIGS. 34 and 36 to 39, the inner box 14 </ b> V is configured by combining walls made of a plurality of inner plates obtained by dividing the inner box 14 </ b> V into a plurality. Specifically, the inner box 14V includes a plate-like top wall 22V, a plate-like bottom wall 23V, a plate-like right wall 24V, a plate-like left wall 25V, and a plate-like back wall 26V. It is configured. Similarly to the top wall 16V of the outer box 13V, the top wall 22V of the inner box 14V has a stepped shape in the front-rear direction, the front part forms a flat plate parallel to the bottom wall 23V, and the rear part is lower than the front part. It is located in a flat plate shape parallel to the bottom wall 23V. The right side wall 24V and the left side wall 25V have a symmetrical shape.

  As shown in FIGS. 34 and 44, the left side wall 25V and the back wall 26V of the inner box 14V are respectively provided with support members 27V protruding from the outer side of the inner box 14V toward the inner side of the inner box 14V, that is, the storage chamber side. Are provided. As shown in FIG. 57, a similar support member 27V is also provided on the right side wall 24V of the inner box 14V.

  The support member 27V is, for example, a resin block, and as shown in FIGS. 53 and 54, the base end portion is bonded and fixed to the heat insulating member 15V, and the distal end portion which is the other end portion is the inner box 14V. 53, for example, in FIG. 53 and FIG. 54, it penetrates the opening 28V formed in the left wall 25V and the back wall 26V. Further, the support member 27V provided in the vertical direction on the back wall 26V side of the right side wall 24V of the inner box 14V, and the vertical direction on the right side wall 24V side and the left side wall 25V side of the back wall 26V of the inner box 14V. A screw hole 271 </ b> V is formed on the end portion side of the support member 27 </ b> V provided side by side. Although not shown, a similar screw hole is also formed at the projecting tip of the support member 27V provided in the vertical direction on the back wall 26V side of the right wall 24V of the inner box 14V. . As shown in FIGS. 53 and 54, the support member 27V may have a configuration having a flange portion 272V at the base end, and the flange portion 272V may be sandwiched between the heat insulating member 15V and the outer surface of the inner box 14V. Good. Since the support member 27V has the flange portion 272V, the support member 27V can be prevented from falling from the opening portion 28V to the storage chamber side. Further, the support member 27V is not a member different from the wall of the inner box 14V, and may be formed integrally with the inner box 14V.

  38 and 39, the top wall 16V of the outer box 13V, the top wall 22V of the inner box 14V, the bottom wall 17V of the outer box 13V, the bottom wall 23V of the inner box 14V, and the right side wall 18V of the outer box 13V The right wall 24V of the inner box 14V, the left wall 19V of the outer box 13V and the left wall 25V of the inner box 14V, the rear wall 20V of the outer box 13V and the rear wall 26V of the inner box 14V are opposed to each other via a heat insulating member 15V. Is provided. In FIG. 39, the right side wall 18V of the outer box 13V and the right side wall 24V of the inner box 14V face each other, the left side wall 19V of the outer box 13V faces the left side wall 25V of the inner box 14V, and the outer box 13V A state in which the back wall 20V and the back wall 26V of the inner box 14V face each other is schematically shown.

  The heat insulating member 15V is excellent in heat insulating performance, for example, has a lower thermal conductivity than a foamed heat insulating material such as urethane or soft tape, and is specifically a flat general vacuum heat insulating panel. And a core material and an outer bag body for housing the core material. The core material was formed by compressing and curing a highly heat-insulating material, for example, a laminate of inorganic fibers such as glass wool, into an inner bag (not shown) made of a synthetic resin film such as polyethylene, and then compressing and curing it into a rectangular plate shape. Is. In addition, the core material may be formed by, for example, a papermaking method, a heat compression method, or the like. The outer bag body is a bag having gas barrier properties, for example, a polyethylene terephthalate film, a high-density polyethylene film, an aluminum vapor-deposited film, an aluminum foil sheet, etc., which are appropriately combined and formed into a bag shape. And the heat insulation member 15V is comprised by sealing the opening part of an outer bag body by heat welding etc., decompressing the said outer bag body in the state which accommodated the core material in the outer bag body, and maintaining pressure reduction. Yes.

  One surface of the heat insulating member 15V in the plate thickness direction is bonded to the outer surface of the inner box 14V, and the other surface opposite to the first surface is bonded to the inner surface of the outer box 13V. That is, the inside of the heat insulating box 12V is configured by the heat insulating member 15V being disposed in contact with the outer plate and the inner plate. As an example in FIG. 40, a heat insulating member 15V is provided between a left side wall 19V of the outer box 13V and a left side wall 25V of the inner box 14V provided to face the left side wall 19V of the outer box 13V. The configuration is shown. In this configuration, an adhesive 29V for bonding the heat insulating member 15V and the left wall 19V is provided between the heat insulating member 15V and the inner surface of the outer box 13V, in this case, the left wall 19V. Further, an adhesive 30V for bonding the heat insulating member 15V and the left wall 25V is provided between the heat insulating member 15V and the outer surface of the inner box 14V, in this case, the left wall 25V. As the adhesives 29V and 30V, a liquid adhesive, a double-sided tape, or the like is used. The support member 27V described above is bonded to the heat insulating member 15V with the adhesive 30V. Further, the support member 27V may be configured to be in contact with the outer box 13V and the inner box 14V by engaging with the fixture 51V.

  Thus, the walls 16V to 20V of the outer box 13V, the walls 22V to 26V of the inner box 14V provided to face the outer box 13V, the walls 16V to 20V of the outer box 13V, and the wall 22V of the inner box 14V. Are bonded to each other by an adhesive 29V, 30V, and one wall of the outer box 13V and one wall of the inner box 14V corresponding to the outer box 13V The heat insulating member 15V provided between these walls is integrated. This integrated body is referred to as a heat insulating wall, in this embodiment, a divided heat insulating wall 31V. The heat insulating wall and the divided heat insulating wall 31V may be referred to as a divided heat insulating panel. That is, the heat insulation box 12V is configured in a box shape by combining a plurality of divided heat insulation walls 31V. Specifically, as shown in FIG. 34, the heat insulation box 12V includes an upper surface divided heat insulation wall 311V constituting the upper surface wall of the heat insulation box 12V and a floor surface constituting the floor surface wall of the heat insulation box 12V. Split heat insulating wall 312V, right heat split wall 313V constituting the right side wall of the heat insulating box 12V, left heat split wall 314V constituting the left side wall of the heat insulating box 12V, the heat insulating box The rear divided heat insulating wall 315V constituting the rear wall of the body 12V is combined with five sheets. Moreover, the divided heat insulating wall for right surface 313V and the divided heat insulating wall for left surface 314V have a bilaterally symmetric shape and are arranged to face each other.

  Here, the front end portions of the right side divided heat insulating wall 313V and the left side divided heat insulating wall 314V forming the left and right walls of the heat insulating box 12V will be described with reference to FIGS. 36, 37, and 41. FIG. Note that, as described above, the right-side divided heat insulating wall 313V and the left-side divided heat insulating wall 314V are bilaterally symmetrical, so the front end portion of the right-side divided heat insulating wall 313V will be described.

  As shown in FIGS. 36 and 37, bent portions 32V are formed at the front end of the right side wall 18V of the outer case 13V at two locations near the center and the lower portion of the front end of the right side split heat insulating wall 313V. Has been. Since the two bent portions 32V have the same configuration, the bent portion 32V provided at the center in the vertical direction of the front end portion of the right-side divided heat insulating wall 313V will be described.

  As shown in FIG. 41, the bent portion 32V bends to the left from the front end of the right wall 18V, continues to bend to the rear in front of the right wall 24V of the inner box 14V, and further bends to the heat insulating member 15V side. It is a bent shape. That is, the bent portion 32V includes two flat portions 321V extending in the left-right direction and a curved portion 322V bent at approximately 360 °, and has a U shape when viewed from above. The two flat portions 321V are substantially opposed to each other and are positioned in front of the heat insulating member 15V. Further, the bent portion 322V is positioned in front of the right wall 24V of the inner box 14V, and the end portion of the bent portion 32V is positioned so that the tip surface of the flat portion 321V of the bent portion 32V is not positioned on the outer surface of the heat insulating box 12V. It is bent so as to be on the rear side. Further, an opening 33V is formed between the bent portion 322V of the bent portion 32V and the front end portion of the right surface wall 24V of the inner box 14V, and between the bent portion 32V and the front end portion of the heat insulating member 15V, The end insertion chamber 34V is formed. That is, the opening 33V functions as an inlet of the end insertion chamber 34V, and the front end of the right wall 24V of the inner box 14V and the bent part 32V of the right wall 18V of the outer box 13V are formed apart from each other. Has been. The end insertion chamber 34V is a space, and the bent portion 32V of the right wall 18V and the heat insulating member 15V are formed apart from each other. And the partition plate 441V and the partition reinforcement board 442V are accommodated in the edge part insertion chamber 34V. The two flat portions 321V are formed with through holes 35V penetrating in the plate thickness direction. The opening 33V, the end insertion chamber 34V, and the through hole 35V will be described later.

As shown in FIGS. 36 and 37, the storage chamber inside the inner box 14V of the heat insulating box 12V includes a first partition member 37V and a first partition member 37V provided at the center of the storage chamber. Is partitioned by a second partition member 38 </ b> V provided below. Thereby, the storage chamber is divided | segmented into plurality in the inside of the heat insulation box 12V, and the several chamber is formed. Specifically, a refrigerator compartment 39V is formed by being surrounded by the inner box 14V and the first partition member 37V. Moreover, the vegetable compartment 40V is formed by being surrounded by the inner box 14V, the first partition member 37V, and the second partition member 38V.
Furthermore, a space is formed in the lower portion of the inner box 14V surrounded by the inner box 14V and the second partition member 38V. In this space, an ice making room 41V, a first freezing room 42V, and a second freezing room 43V disposed on the right side of the ice making room 41V are provided. As shown in FIG. 35, a front-opening type refrigerator compartment door 391V is provided at the front opening of the refrigerator compartment 39V, and a drawer-type vegetable compartment door 401V is provided at the front opening of the vegetable compartment 40V. In addition, a drawer type ice making room door 411V is provided at the front opening of the ice making room 41V, and a drawer type first freezing room door 421V is provided at the front opening of the first freezing room 42V. A drawer-type second freezer compartment door 431V is provided at the front opening of the freezer compartment 43V.

Since the first partition member 37V has the same configuration as the second partition member 38V, the first partition member 37V will be described with reference to FIG. Moreover, since the first partition member 37V has a bilaterally symmetric shape, the configuration on the right side will be described.
The first partition member 37V includes a front partition portion 44V and a surface partition portion 45V.
The front partition 44V is provided in the front opening of the storage chamber, and is configured in a rectangular parallelepiped shape extending in the left-right direction of the storage chamber. The front partition portion 44V includes a partition plate 441V, a partition reinforcing plate 442V, a partition cover 443V, and a partition heat insulating member 444V.

  The partition plate 441 </ b> V is made of metal and is a plate member that forms the front wall of the front partition portion 44 </ b> V, and both left and right end portions are bent slightly rearward. The partition plate 441V has a right end portion disposed inside the end insertion chamber 34V through an opening 33V formed at the front end portion of the right-side divided heat insulating wall 313V. Three through holes 445V are formed at the right end of the front partition 44V.

  The partition reinforcing plate 442V is made of metal and provided when the tensile strength of the partition plate 441V is small, and the vertical dimension is adjusted to be the same as or shorter than the vertical dimension of the partition plate 441V. It is a plate member in which the horizontal dimension is adjusted to be longer than the horizontal dimension of the partition plate 441V, and the plate thickness is adjusted to be equal to or greater than that of the partition plate 441V, and the left and right ends are bent slightly rearward. Yes. The partition reinforcing plate 442V is provided in contact with the back surface of the partition plate 441V.

  And the right end part of the partition plate 441V is arrange | positioned inside the end part insertion chamber 34V through the opening part 33V formed in the front-end part of the division | segmentation heat insulation wall 313V for right surfaces. Thus, the right end portion of the partition plate 441V is sandwiched between the right end portion of the partition reinforcing plate 442V and the right side wall 18V of the outer box 13V, that is, the bent portion 32V of the right side split heat insulating wall 313V. Further, the left and right ends of the partition plate 441V and the partition reinforcing plate 442V are bent rearward, and the end portions are inserted into the end insertion chamber 34V. Therefore, the front surface of the bent portion 32V is separated from the partition plate. It can be configured to be flush with the front surface of 441V.

  The right end portion of the partition reinforcing plate 442V is located on the right side of the partition plate 441V and has an L-shaped cross section, and is bent backward corresponding to the corner shape of the right front portion of the right side wall 18V of the outer box 13V. Furthermore, three screw holes 446V corresponding to the three through holes 445V of the partition plate 441V are formed at the right end of the partition reinforcing plate 442V. The screw hole 446V located on the rightmost end side among the three locations has a configuration in which a shaft portion of the screw 46V that is passed through the through hole 35V formed in the bent portion 32V of the right surface wall 18V of the outer box 13V is provided. ing. Further, the remaining two screw holes 446V of the partition reinforcing plate 442V are also provided with a shaft portion of a screw 47V that is passed through the through hole 445V of the partition plate 441V. As a result, the right end portion of the partition plate 441V and the right end portion of the partition reinforcing plate 442V are connected and fixed to the bent portion 32V of the right-side split heat insulating wall 313V. As described above, although not shown, the left end portion of the partition plate 441V and the left end portion of the partition reinforcing plate 442V have the same configuration as that of the right end portion described above, and the left wall 19V of the outer box 13V, that is, the left side partition. It is configured to be connected and fixed to a bent portion (not shown) of the heat insulating wall 314V. That is, the partition plate 441V functions as a connecting member that connects and fixes the right divided heat insulating wall 313V and the left divided heat insulating wall 314V at the front opening of the storage chamber, and the bent portion 32V functions as a connected member. .

  The partition cover 443V is made of metal, has a box shape with an open front, and forms a rectangular parallelepiped outer wall of the front partition portion 44V together with the partition plate 441V. A partition heat insulating member 444V is provided in a rectangular parallelepiped space formed by the partition cover 443V and the partition plate 441V. The partition cover 443V is supported by the support member 27V. That is, the partition cover 443V has a mounting portion (not shown) at the lower portion, and the mounting portion is fixed to the support member 27V with a screw.

The partition heat insulating member 444V is made of a heat insulating member such as polystyrene foam or urethane, and is formed in a rectangular parallelepiped shape.
As shown in FIGS. 36 and 37, the surface partition portion 45V is a resin-made rectangular plate member having heat insulation properties, and a plate made of resin around the plate-like heat insulation member such as a vacuum heat insulation panel. It's covered. The surface partition portion 45V is placed and held on the support member 27V of the inner box 14V, the front end portion is provided in contact with the back surface of the front partition portion 44V, and the left and right end portions are the right side wall of the inner box 14V. 24V and the left wall 25V are provided in contact. The rear end portion of the surface partition portion 45V of the first partition member 37V is provided with a gap with respect to the back wall 26V of the inner box 14V. Thereby, the refrigerator compartment 39V and the vegetable compartment 40V have the structure which connected. On the other hand, the rear end portion of the surface partition portion 45V of the second partition member 38V is provided in contact with the back wall 26V of the inner box 14V. Thus, the vegetable compartment 40V and the ice making chamber 41V are insulated from each other by the second partition member 38V, and the vegetable compartment 40V and the second freezing compartment 43V are both insulated from each other by the second partition member 38V. .

  As shown in FIGS. 34 and 36 to 39, the divided heat insulating wall 31 </ b> V is connected and fixed to another adjacent divided heat insulating wall 31 </ b> V via a fixture 51 </ b> V. That is, in the inner box 14V, in the walls 22V to 26V divided into a plurality, the two walls are connected and fixed via the fixture 51V at the corner portion formed by the other wall adjacent to the one wall. It becomes the composition.

  The fixing tool 51V is in the inner box 14V and is formed by a corner portion formed by the upper surface wall 22V and the right wall 24V, a corner portion formed by the upper surface wall 22V and the left wall 25V, and the upper surface wall 22V and the rear wall 26V. Corner portion formed, corner portion formed by bottom wall 23V and right wall 24V, corner portion formed by bottom wall 23V and left wall 25V, corner portion formed by bottom wall 23V and back wall 26V Is provided. In other words, the fixing tool 51V is fixed at a position facing the two heat insulating members 15V that are adjacently spaced apart.

  Further, as shown in FIGS. 39 and 42, an electric wire 52V is arranged in a rear corner portion of the inner box 14V, for example, a left rear corner portion formed by the left wall 25V and the back wall 26V. . The electric wire 52V is, for example, an electric wire that connects a control device (not shown) and a component such as a blower fan (not shown) that is driven by receiving a signal from the control device, or an electric wire that connects the control device and various sensors. For example, it extends along the corner portion. The electric wire 52V is configured by bundling a plurality of electric wires. In the drawing, an electric wire 52V in which a plurality of electric wires are bundled to have a circular cross section is shown.

  Further, a corner portion that is different from the corner portion where the electric wire 52V is provided at the rear portion of the inner box 14V, for example, the corner portion on the right back side formed by the left wall 25V and the back wall 26V is shown in FIG. As shown in FIG. 55, a pipe 53V is arranged. Specifically, the pipe 53V is a suction pipe that connects a refrigeration evaporator and a compressor (not shown), a suction pipe that connects a refrigeration evaporator and a compressor, and the like, and extends along the corner portion, for example. . Two pipes 53V are provided, for example, one through which a refrigerant used for refrigeration passes and one through which a refrigerant used for freezing passes.

  Since the fixtures 51V provided at each corner of the inner box 14V have a similar configuration, hereinafter, the fixing provided at the corner formed by the left wall 25V and the back wall 26V in the inner box 14V. The fixture 511V and the fixture 512V provided at the corner formed by the right wall 24V and the back wall 26V will be described. In the description of the fixture 512V, the description of the parts common to the fixture 511V is omitted. Moreover, the structure of the above-mentioned electric wire 52V and the piping 53V is also demonstrated.

First, the fixture 511 </ b> V will be described with reference to FIGS. 34 and 42 to 54.
As shown in FIGS. 34, 42, and 43, the fixing member 511V has a columnar shape with a right-angled triangle as a whole, and is vertically moved along the corner portion formed by the left wall 25V and the back wall 26V of the inner box 14V. It has a shape extending in the direction. FIG. 42 schematically shows the vicinity of a corner portion where the electric wire 52V is provided. FIG. 43 shows the corner portion after the fixture 511V is provided at the corner portion. FIG. 44 shows the corner portion before the fixture 511V is provided at the corner portion.
As shown in FIGS. 45 to 47, the fixing device 511 </ b> V includes a fixing cover 54 </ b> V and a reinforcing member 55 </ b> V that form a cylindrical shape with a right-angled triangular section, and a corner heat insulating member 56 </ b> V that forms a cylindrical interior. Yes.

  The fixed cover 54V is made of resin and is a rectangular plate member that is long in the vertical direction, and is arranged so as to cover the front side of the electric wire 52V provided in the corner portion. That is, the fixed cover 54V is arranged so that the electric wire 52V cannot be seen from the user side of the refrigerator 11V. As shown in FIGS. 47 to 54, a through hole 58 </ b> V for allowing the shaft portion of the screw 57 </ b> V to pass through is formed in the front surface of the fixed cover 54 </ b> V. The through holes 58V of the fixed cover 54V are formed at a plurality of locations on both ends in the width direction orthogonal to the longitudinal direction. The through hole 58V is arranged so that the vertical direction is shifted from the through hole 58V located at the other end so that the through hole 58V at the other end is separated as much as possible. That is, the through holes 58V of the fixed cover 54V are arranged in a zigzag shape along the longitudinal direction of the fixed cover 54V, for example, as shown in FIG.

  As shown in FIGS. 48, 50, 52 and 53, the axial direction of the through hole 58V located on the left side of the through hole 58V of the fixed cover 54V is as shown in FIGS. 48, 50, 52 and 53. This is the direction orthogonal to the left wall 25V of the inner box 14V when provided at the corner. The axial direction of the through hole 58V located on the right side of the through hole 58V of the fixed cover 54V is as shown in FIG. 48, FIG. 49, FIG. 51, and FIG. This is a direction orthogonal to the back wall 26V of the inner box 14V when provided at the corner portion of 14V.

  As shown in FIGS. 34, 45 and 46, the fixed cover 54V is composed of parts divided into two parts in the length in the extending direction of the corner portion on which the fixture 511V is provided. With this configuration, the fixed cover 54V can be easily handled, and deformation such as twisting is difficult. Hereinafter, the upper part of the fixed cover 54V is referred to as an upper fixed cover 541V, and the lower part is referred to as a lower fixed cover 542V. The upper fixed cover 541V is arranged at the corner portion of the refrigerator compartment 39V and the vegetable compartment 40V of the inner box 14V, and the lower fixed cover 542V is arranged at the corner portion of the ice making chamber 41V and the first freezer compartment 42V of the inner box 14V. It is. Of the fixed cover 54V, a portion where the upper fixed cover 541V and the lower fixed cover 542V are connected. In other words, the divided portion protrudes to the left corner portion as shown in FIG. 48 and abuts against a reinforcing member 55V described later. Yes. As shown in FIGS. 43 and 45 to 47, an opening 59V having an open end is formed at the center in the longitudinal direction of the upper fixing cover 541V, and at the center in the longitudinal direction of the lower fixing cover 542V. Also, an opening 60V having an open end is formed.

  The reinforcing member 55V reinforces the strength of the fixing cover 54V of the fixing tool 51V, and is made of resin. As shown in FIGS. 42, 45 and 47, the remaining isosceles cross section of the fixing tool 511V. The cover is formed of a plate member having two sides, specifically, a plate member having an L-shaped cross section forming a right angle corner, and the length in the longitudinal direction is adjusted to be the same as the length in the longitudinal direction of the fixed cover 54V. The reinforcing member 55V is arranged such that one of the two sides having an L-shaped cross section faces the left wall 25V of the inner box 14V, that is, the left-side divided heat insulating wall 314V, and the other side is the rear wall 26V of the inner box 14V. In other words, it is disposed so as to be opposed to the divided heat insulating wall 315V for the back.

  The right angle portion of the reinforcing member 55V is arranged corresponding to the corner portion of the inner box 14V. That is, the fixing member 511V is disposed at the corner portion so that the right-angle portion of the L-shaped cross section of the reinforcing member 55V is closest to the corner of the inner box 14V. And the opening part of the open side of the L-shaped cross section of the reinforcing member 55V is covered with the fixed cover 54V. In other words, the reinforcing member 55V is disposed between the end portions of the adjacent divided heat insulating walls 31V, that is, across the spaced apart portions of the adjacent divided heat insulating walls 31V, and in a place where the heat insulating effect between the divided heat insulating walls 31V is small. It is an arranged configuration.

  A plurality of screw holes 61V and a plurality of through holes 62V are formed at both ends in the width direction orthogonal to the longitudinal direction of the reinforcing member 55V. The plurality of screw holes 61V and the plurality of through holes 62V are arranged in a zigzag shape along the longitudinal direction of the reinforcing member 55V corresponding to the through holes 58V of the fixed cover 54V.

  The through hole 62V of the reinforcing member 55V is formed in a bulging portion 63V that bulges toward the fixed cover 54V. That is, the bulging portion 63V is also arranged in a zigzag shape along the longitudinal direction of the reinforcing member 55V. The axial direction of the through hole 62V of the reinforcing member 55V is configured to coincide with the axial direction of the through hole 58V of the fixed cover 54V when the fixed cover 54V is attached to the reinforcing member 55V. The shaft portion of the screw 57V passes through the through hole 62V of the reinforcing member 55V.

  As shown in FIGS. 47, 48, 49, and 52, the screw hole 61V of the reinforcing member 55V has a cylindrical shape that protrudes toward the fixed cover 54V, and has a thread formed inside. When the fixed cover 54V is attached to the reinforcing member 55V, the screw hole 61V of the reinforcing member 55V coincides with the axial direction of the through hole 58V of the fixed cover 54V, and is screwed with the screw 57V.

  As shown in FIG. 47, the reinforcing member 55V is also composed of two parts divided in the length in the extending direction of the corner portion where the fixture 511V is provided. The dividing position of the reinforcing member 55V is the same as the dividing position of the fixed cover 54V. Hereinafter, the upper part of the reinforcing member 55V is referred to as an upper reinforcing member 551V, and the lower part is referred to as a lower reinforcing member 552V. With this configuration, the upper reinforcing member 551V is also disposed at the corner portions of the refrigerator compartment 39V and the vegetable compartment 40V, and the lower reinforcing member 552V is disposed at the corner portions of the ice making chamber 41V and the first freezing chamber 42V of the inner box 14V. It is a configuration.

  For example, as shown in FIG. 42, the corner heat insulating member 56V is disposed at the corner so as to be covered by the fixing cover 54V of the fixing tool 511V. Specifically, as described above, the corner insulating member 56V is surrounded by the fixing tool 511V. It is provided. That is, the corner heat insulating member 56 </ b> V is disposed so as to cover the spaced apart portions between the ends of the adjacent divided heat insulating walls 31 </ b> V. As shown in FIG. 47, the corner heat insulating member 56V is formed by forming a heat insulating member such as polystyrene foam in a triangular prism. A plurality of notches 64V are formed on both end sides in the width direction orthogonal to the longitudinal direction of the corner heat insulating member 56V. The notch 64V is zigzag along the longitudinal direction of the corner heat insulating member 56V so as not to interfere with the through hole 58V of the fixed cover 54V, the screw hole 61V of the reinforcing member 55V, and the screw 57V provided in the through hole 62V. Has been placed. The corner heat insulating member 56V is also composed of two parts divided in the length in the extending direction of the corner portion where the fixture 511V is provided. The dividing position of the corner heat insulating member 56V is the same as the dividing position of the fixed cover 54V. Hereinafter, the upper part of the corner heat insulating member 56V is referred to as an upper corner heat insulating member 561V, and the lower part is referred to as a lower corner heat insulating member 562V. In this case, the upper corner heat insulating member 561V is provided between the upper fixed cover 541V and the upper reinforcing cover 551V. The lower corner heat insulating member 562V is provided between the lower fixed cover 542V and the lower reinforcing cover 552V. With this configuration, the upper corner heat insulating member 561V is also arranged in the corner portions of the refrigerator compartment 39V and the vegetable compartment 40V, and the lower corner heat insulating member 562V is the corner portion of the ice making chamber 41V and the first freezer compartment 42V of the inner box 14V. It is the structure arrange | positioned.

  With the above configuration, the fixture 511V as a whole can be divided into two parts in the direction extending along the corner portion. The upper corner heat insulating member 561V is provided apart from the lower corner heat insulating member 562V. That is, as shown in FIG. 48, in the divided portion of the fixed cover 54V, the front surface of the divided portion of the fixing tool 511V is recessed toward the corner portion side.

  In addition, an opening 65V having an opening on the end side corresponding to the opening 59V of the upper fixing cover 541V is formed at the center in the longitudinal direction of the heat insulating member 561V for the upper corner, and the longitudinal direction of the heat insulating member 562V for the lower corner is formed. An opening 66V having an opening on the end side corresponding to the opening 60V of the upper fixed cover 541V is also formed in the center.

  In addition, a concave accommodating portion 67V extending in the longitudinal direction is formed at a right-angle portion in a cross section orthogonal to the longitudinal direction of the corner heat insulating member 56V, that is, a portion close to the corner of the corner portion of the inner box 14V. The aforementioned electric wire 52V is accommodated in the accommodating portion 67V of the corner heat insulating member 56V. That is, the fixture 511V has a configuration in which the electric wire 52V is accommodated in a cylindrical shape. The electric wire 52V accommodated in the accommodating part 67V is held by the inner peripheral surface of the accommodating part 67V as a holding part so as not to be displaced from a predetermined position by the holding part, and a holding part such as a hook (not shown). And so on. That is, the electric wire 52V and the fixture 511V are integrated. A part of the electric wire 52V passes through the opening 65V of the corner heat insulating member 56V and exits from the opening 59V of the upper fixing cover 541V to the storage chamber side, and the other part of the electric wire 52V opens to the corner heat insulating member 56V. 66V passes through the opening 60V of the lower fixed cover 592V to the storage chamber side, and another part protrudes outward from the upper end surface of the fixture 511V and is guided to the machine room 21V through the separation portion 211V. It is. That is, the openings 59V and 60V of the fixture 511V are for guiding a part of the electric wire 52V accommodated in the fixture 511V to the storage chamber side. Further, a part of the electric wire 52V may be guided from the lower end surface of the fixture 511V to the partial housing chamber 212V through the separation portion 213V.

  As shown in FIG. 46, the electric wire 52V has a connection portion 68V at a portion protruding from the openings 59V and 60V of the fixed cover 54V toward the storage chamber. The electric wire 52V also has a connecting portion 68V at a tip portion extending outward from the upper end surface of the fixture 511V. These connection portions 68V are made of resin and have a plug-like configuration that can be connected to connection portions of other electric wires. The other electric wires are connected to components such as a control device and a blower fan.

  47 and 49 to 52 are shown between the fixed cover 54V and the reinforcing member 55V, specifically, between the widthwise end of the fixed cover 54V and the widthwise end of the reinforcing member 55V. Thus, the first seal member 71V is provided. The first seal member 71V is a member that extends long along the longitudinal direction of the fixed cover 54V and the reinforcing member 55V, and is made of, for example, a soft tape. As a result, the first cover member 71V is sealed between the fixed cover 54V and the reinforcing member 55V.

  The reinforcing member 55V and the wall of the inner box 14V adjacent to the reinforcing member 55V, specifically, between the reinforcing member 55V and the left side wall 25V, that is, the left side divided heat insulating wall 314V, and between the reinforcing member 55V and the rear side wall 26V, ie, the rear side. As shown in FIGS. 47 to 52, a second seal member 72 </ b> V is provided between the divided heat insulation walls 315 </ b> V. The second seal member 72V is a member that extends long along the longitudinal direction of the fixed cover 54V and the reinforcing member 55V, and is made of, for example, a soft tape. Thereby, it becomes the structure by which the space between the reinforcement member 55V and the division | segmentation heat insulation wall 31V adjacent to this reinforcement member 55V was sealed by the 2nd seal member 72V.

  As shown in FIG. 42, a third seal member 73V is provided at an end of the divided heat insulating wall 31V, for example, a portion where the left heat insulating wall 314V and the rear heat insulating wall 315V are abutted. Yes. The third seal member 73V is a member extending in parallel with the longitudinal direction of the fixed cover 54V and the reinforcing member 55V, and is made of, for example, a soft tape. Thereby, it becomes the structure sealed between the division | segmentation heat insulation wall 314V for left surfaces, and the division | segmentation heat insulation wall 315V for back surfaces by the 3rd seal member 73V. 53 and 54, the third seal member is not shown.

  47 to 52, the fixing tool 511V sandwiches the corner heat insulating member 56V between the fixing cover 54V and the reinforcing member 55V, and stores the electric wire 52V in the storage portion 67V of the corner heat insulating member 56V. The end portion in the width direction of 54V and the end portion in the width direction of the reinforcing member 55V are combined. Then, with the fixed cover 54V aligned with the reinforcing member 55V in this way, the shaft portion of the screw 57V is passed through the through hole 58V of the fixed cover 54V and screwed into the screw hole 61V of the reinforcing member 55V. 54V is fixed to the reinforcing member 55V. Further, by fixing the fixed cover 54V to the reinforcing member 55V, the corner heat insulating member 56V is also fixed inside the fixture 511V, and the electric wire 52V is also fixed inside the fixture 511V. Yes. Therefore, the fixed cover 54V, the reinforcing member 55V, the corner heat insulating member 56V, and the electric wire 52V are integrated.

Note that, in the divided portion of the upper fixed cover 541V and the lower fixed cover 542V, as shown in FIG. 48, the fixed cover 54V is fixed to the reinforcing member 55V by a pair of screws 57V and 57V. And the left part of the rear-end part of the 2nd partition member 38V is contact | abutted and arrange | positioned at the division | segmentation part of the fixing tool 511V.
As shown in FIGS. 53 and 54, the screw 57V is threaded through the through hole 58V of the fixed cover 54V and the through hole 62V of the reinforcing member 55V and screwed into the screw hole of the support member 27V of the inner box 14V. The fixing tool 511V is fixed to the corner portion of the inner box 14V.
At this time, the space between the fixed cover 54V and the reinforcing member 55V is sealed by the first seal member 71V, and the space between the fixture 51V and the divided heat insulating wall 31V adjacent to the fixture 51V is sealed by the second seal member 72V. The sealing is performed, and the space between the left heat insulating wall 314V and the rear heat insulating wall 315V is sealed by the third seal member 73V.

  Further, the left split heat insulating wall 314V and the back split heat insulating wall 315V are arranged to face the reinforcing member 55V via the second seal member 72V. Thereby, the adjacent divided heat insulation wall 314V for the left surface and the divided heat insulation wall 315V for the back surface are connected and fixed by the fixture 511V, and the adjacent division formed by the divided heat insulation wall 314V for the left surface and the divided heat insulation wall 315V for the back surface. The angles of the heat insulating walls 314V and 315V are held at 90 ° corresponding to the right angle portion of the reinforcing member 55V. In other words, the reinforcing member 55V is disposed so as to oppose each of the left-side divided heat insulating wall 314V and the rear-side divided heat insulating wall 315V, and functions as an angle holding portion that holds the angle of the adjacent wall, that is, the divided heat insulating wall 31V, at 90 °. doing.

Next, the fixture 512V will be described with reference to FIGS.
As shown in FIGS. 55 and 56, the fixture 512V has a columnar shape with a right-angled triangular section as a whole, and extends vertically along the corner portion formed by the right wall 24V and the back wall 26V of the inner box 14V. It has a different shape. FIG. 55 schematically shows the vicinity of a corner portion where the pipe 53V is provided. FIG. 56 shows a configuration after the fixing tool 512V is provided in the corner portion. FIG. 57 shows a configuration before the fixture 512V is provided at the corner portion.
As shown in FIGS. 58 to 60, the fixture 512V includes a fixed cover 81V and a reinforcing member 82V that form a cylindrical shape with a right-angled triangle cross section, and a corner heat insulating member 83V that forms a cylindrical interior. .

  The fixed cover 81V has substantially the same configuration as the fixed cover 54V, is a rectangular plate member that is long in the vertical direction, and is arranged so as to cover the front side of the pipe 53V provided in the corner portion. That is, the fixed cover 81V is arranged so that the pipe 53V cannot be seen from the user side of the refrigerator 11V. The fixed cover 81V is formed with a plurality of through holes 84V similar to the through holes 58V of the fixed cover 54V. Further, as shown in FIG. 60, the fixed cover 81V is also composed of two parts divided in the length in the extending direction of the corner portion where the fixing tool 512V is provided, and the upper part of the fixed cover 81V. The upper fixed cover 811V that constitutes the lower part and the lower fixed cover 812V that constitutes the lower part. A portion where the upper fixed cover 811V and the lower fixed cover 812V are connected, that is, a divided portion is formed to protrude toward the corner portion on the right rear side as shown in FIG. Further, as shown in FIG. 60, the upper fixed cover 811V has a first protrusion 85V that protrudes outward and extends in the center in the longitudinal direction, and an opening 86V is formed in the first protrusion. ing. Further, as shown in FIGS. 56 and 58 to 60, the central portion in the longitudinal direction of the lower fixed cover 812V has a second projecting portion 87V that projects outward and extends, and this second projecting portion 87V. An opening 88V is formed in the opening.

  The reinforcing member 82V has substantially the same configuration as the reinforcing member 55V, and as shown in FIG. 60, is a plate member having an L-shaped cross section that forms the remaining two sides of the isosceles triangle of the fixture 512V. The right angle portion of the reinforcing member 82V is arranged corresponding to the corner portion of the inner box 14V. And the fixed cover 81V is provided so that the opening part of the open side of the L-shaped cross section of the reinforcing member 82V may be covered.

  A plurality of screw holes 89V and a plurality of through holes 90V are formed at both ends in the width direction orthogonal to the longitudinal direction of the reinforcing member 55V. The screw hole 89V and the through hole 90V of the reinforcing member 82V have the same configuration as the screw hole 61V and the through hole 62V of the reinforcing member 55V. The reinforcing member 82V is also composed of parts divided into two parts in the length in the extending direction of the corner portion where the fixing member 512V is provided, and the upper reinforcing member constituting the upper part of the reinforcing member 82V. It is comprised from 821V and the lower reinforcement member 822V which comprises a lower part. The upper reinforcing member 821V has a first reinforcing protrusion 91V that protrudes outward and extends at a position corresponding to the central portion of the upper reinforcing member 821V in the longitudinal direction, that is, the first protrusion 85V. The first reinforcing protrusion 91V forms a cylindrical shape together with the first protrusion 85V. Further, the lower reinforcing member 822V also has a second reinforcing protrusion 92V that protrudes outward and extends at a position corresponding to the longitudinal center of the lower reinforcing member 822V, that is, the second protrusion 87V. The second reinforcing protrusion 92V also forms a cylindrical shape together with the second protrusion 87V.

  The corner heat insulating member 83V has substantially the same configuration as the corner heat insulating member 56V, and is disposed at the corner portion so as to be covered by the fixing cover 81V of the fixing tool 512V. That is, the corner heat insulating member 83V is also disposed so as to cover the spaced apart portions between the ends of the adjacent divided heat insulating walls 31V. As shown in FIG. 60, the corner heat insulating member 83V is formed by forming a heat insulating member such as foamed polystyrene into a triangular prism, and a plurality of notches 93V are formed on both end sides in the width direction. The notch 93V has the same configuration as the notch 64V of the corner heat insulating member 56V. The corner heat insulating member 83V is also composed of two parts divided in the length in the extending direction of the corner portion where the fixture 512V is provided, and constitutes the upper part of the corner heat insulating member 83V. The upper corner heat insulating member 831V and the lower corner heat insulating member 832V constituting the lower part are configured. In this case, the upper corner heat insulating member 831V is provided between the upper fixed cover 811V1 and the upper reinforcing cover 821V. The lower corner heat insulating member 832V is provided between the lower fixed cover 812V and the lower reinforcing cover 822V.

  With the above configuration, the fixture 512V as a whole can be divided into two parts in the direction extending along the corner portion. The upper corner heat insulating member 831V is provided apart from the lower corner heat insulating member 832V. That is, as shown in FIG. 61, in the divided portion of the fixed cover 81V, the corner portion side surface of the fixed cover 81V is in contact with the reinforcing member 82V, and the front surface of the divided portion of the fixture 51V is recessed toward the corner portion side. It has a shape.

  Further, as shown in FIG. 60, the upper corner heat insulating member 831V has a first protrusion extending outwardly at a position corresponding to the central portion in the longitudinal direction of the upper corner heat insulating member 831V, that is, the first protrusion 85V. It has a heat insulating protrusion 94V, and an opening 95V is formed in the first heat insulating protrusion 94V. The first heat-insulating protrusion 94V is configured to be accommodated in a cylindrical portion formed by the first reinforcing protrusion 91V and the first protrusion 85V. Further, the lower-corner heat insulating member 832V also has a second heat-insulating protrusion 96V extending outwardly at a position corresponding to the central portion of the lower-corner heat-insulating member 832V, that is, the second protrusion 87V. An opening 97V is formed in the second heat-insulating protrusion 96V. The second heat insulating protrusion 96V is configured to be accommodated in a cylindrical portion formed by the second reinforcing protrusion 92V and the second protrusion 87V.

  In addition, a concave accommodating portion 98V extending in the longitudinal direction is formed at a right-angle portion in a cross section orthogonal to the longitudinal direction of the corner heat insulating member 83V, that is, a portion close to the corner of the corner portion of the inner box 14V. The piping 53V described above is accommodated in the accommodating portion 98V of the corner heat insulating member 83V. That is, the fixture 512V has a configuration in which the pipe 53V is accommodated in a cylindrical shape. The pipe 53V accommodated in the accommodating portion 98V is held by the holding portion with the inner peripheral surface of the accommodating portion 98V serving as a holding portion, and is also held by a holding portion such as a hook (not shown). That is, the pipe 53V and the fixture 512V are integrated. Note that a plurality of pipes 53V accommodated in the accommodating portion 98V are accommodated depending on the portion of the corner portion.

  A part of the pipe 53V passes through the opening 95V of the corner heat insulating member 83V and exits from the opening 86V of the upper fixing cover 811V to the storage chamber side, and the other part of the pipe 53V has an opening 97V of the corner heat insulating member 83V. Through the opening 88V of the lower fixed cover 812V, and the other part protrudes outward from the upper end surface of the fixture 512V and is guided to the machine room 21V through the separation portion 211V. ing. That is, the openings 86V and 88V of the fixture 512V are for guiding a part of the pipe 53V accommodated in the fixture 512V to the storage chamber side. Further, a part of the pipe 53V may be guided from the lower end surface of the fixture 512V to the partial housing chamber 212V through the separation portion 213V.

  As shown in FIG. 59, the pipe 53V has a welded portion 99V at a portion protruding from the openings 86V and 88V of the fixed cover 81V to the storage chamber side. Further, the pipe 53V also has a welded portion 99V at a tip portion that extends outward from the upper end surface of the fixture 512V. These welded portions 99V are configured to be welded to welded portions of other pipes, for example, the pipe 53V has a larger diameter than the other pipes. The other pipes are connected to an evaporator for refrigeration, an evaporator for freezing, and a compressor.

In this embodiment, a pipe 53V extending from the opening 86V of the upper fixed cover 811V to the storage chamber side is connected to the refrigeration evaporator, and a pipe extending from the opening 88V of the lower fixed cover 812V to the storage chamber side is used for freezing. The welded part 99V of the pipe 53V and the welded part of another pipe are welded so that the pipe connected to the evaporator and extending outward from the upper end surface of the fixture 512V is connected to the compressor provided in the machine room 21V. It becomes the composition which is done.
Between the fixed cover 81V and the reinforcing member 82V, specifically, between the end in the width direction of the fixed cover 81V and the end in the width direction of the reinforcing member 82V, a first seal provided on the fixture 511V. A first seal member 101V similar to the member 71V is provided.

The reinforcing member 82V and the wall of the inner box 14V adjacent to the reinforcing member 82V, specifically, between the reinforcing member 82V and the right side wall 24V, that is, the right side divided heat insulating wall 313V, between the reinforcing member 82V and the rear side wall 26V, that is, the rear side divided. Between the heat insulation wall 315V, as shown in FIGS. 60-64, the 2nd seal member 102V similar to the 2nd seal member 72V is provided.
Further, as shown in FIG. 55, a third seal member 103V similar to the third seal member 72V is provided at a portion where the divided heat insulation wall 313V for the right surface and the divided heat insulation wall 315V for the back surface are abutted. It has been.

  As shown in FIGS. 59 to 64, the fixing tool 512V sandwiches the corner heat insulating member 83V between the fixing cover 81V and the reinforcing member 82V, and accommodates the pipe 53V in the accommodating portion 98V of the corner heat insulating member 83V. The end portion in the width direction of 81V and the end portion in the width direction of the reinforcing member 82V are configured together. Then, with the fixed cover 81V aligned with the reinforcing member 82V in this way, the shaft portion of the screw 57V is passed through the through hole 84V of the fixed cover 81V and screwed into the screw hole 89V of the reinforcing member 82V. 81V is fixed to the reinforcing member 82V.

Further, by fixing the fixed cover 81V to the reinforcing member 82V, the corner heat insulating member 83V is also fixed inside the fixture 51V, and the pipe 53V is also fixed inside the fixture 512V. Yes. The right portion of the rear end portion of the second partition member 38V is also in contact with the divided portion of the upper fixed cover 811V and the lower fixed cover 812V, and the divided portion is covered.
As shown in FIG. 61, the fixed cover 81V is fixed to the reinforcing member 82V by a pair of screws 57V and 57V at the divided portion of the upper fixed cover 811V and the lower fixed cover 812V. And the right part of the rear-end part of the 2nd partition member 38V is contact | abutted and arrange | positioned at the division | segmentation part of the fixing tool 512V.

Further, as shown in FIG. 63, a shaft portion of a screw (not shown) is threaded into a screw hole of a support member (not shown) of the inner box 14V through a through hole 84V of the fixed cover 81V and a through hole 90V of the reinforcing member 82V. By this, it becomes the structure by which the fixing tool 512V was fixed to the corner part of the inner box 14V. Although not shown, the fixture 512V is also fixed to the support member of the back wall 26V with the same configuration.
At this time, the space between the fixed cover 81V and the reinforcing member 82V is sealed by the first seal member 101V, and the space between the fixture 51V and the divided heat insulating wall 31V adjacent to the fixture 51V is sealed by the second seal member 102V. Sealed, and the space between the right-side divided heat insulating wall 313V and the rear-side divided heat insulating wall 315V is sealed by the third seal member 103V.

  In addition, the reinforcing member 82V is disposed so as to oppose each of the right divided heat insulating wall 313V and the rear divided heat insulating wall 315V via the second seal member 102V. Thereby, the adjacent divided heat insulation wall 313V for the right side and the divided heat insulation wall 315V for the back surface are connected and fixed by the fixture 512V, and the adjacent wall formed by the divided heat insulation wall 313V for the right surface and the divided heat insulation wall 315V for the back surface. Is held at 90 ° corresponding to the right angle portion of the reinforcing member 82V. That is, the reinforcing member 82V also functions as an angle holding portion that holds the angle between adjacent walls at 90 °.

  Next, a part of the piping 53V led to the storage chamber side from the opening 88V of the fixing cover 81V of the fixing tool 512V will be described with reference to FIG. As shown in FIG. 65, a partition heat insulating member 105V is provided between the surface partition 45V of the second partition member 38V and the right surface wall 24V of the inner box 14V inside the inner box 14V. The partition heat insulating member 105V is a heat insulating member made of foamed polystyrene or the like, and has a block shape extending in the front-rear direction. The partition heat insulating member 105V is formed with a recess 106V that is open on the inner box 14V side. And inside the recessed part 106V, it has the structure by which a part of piping 53V which went out to the storage chamber side from the opening part 88V of the fixing tool 512V was provided. That is, a part of the pipe 53V extending from the opening 88V of the fixture 512V is configured along the front-rear direction of the edge of the second partition member 38V.

The upper surface, the front surface, and the left surface of the heat insulating member for partition 105V are covered with a member extending from the surface partition portion 45V of the second partition member 38V.
Although not shown in the figure, the above partition heat insulating member is provided between the surface partition portion 45V of the second partition member 38V and the left wall 25V of the inner box 14V inside the inner box 14V. It is good also as a structure by which some electric wires 52V which have come out from the opening part 60V of 512V are provided along the front-back direction of the edge of the 2nd partition member 38V.

The assembly procedure of the heat insulation box 12V of the refrigerator according to the above-described embodiment will be described with reference to FIGS.
First, the divided heat insulating wall 31V and the fixture 51V shown in FIG. 34 are manufactured. Next, as shown in FIG. 66, a fixture 511V is attached to one of the two adjacent divided heat insulation walls 31V, for example, the left heat insulation wall 314V, with screws 57V. Next, the rear divided heat insulating wall 315V is attached to the left side divided heat insulating wall 314V and the fixture 511V integrated. Thereby, the adjacent division | segmentation heat insulation wall 31V is connected and fixed, and the corner part of the right back side of the inner box 14V is formed.

  At this time, the angle between the adjacent walls formed by the left divided heat insulating wall 314V and the rear divided heat insulating wall 315V is maintained at 90 ° corresponding to the right angle portion of the reinforcing member 55V. The other corner portion of the inner box 14V is also formed by connecting and fixing the divided heat insulating wall 31V and the fixture 51V. Thereby, the inner box 14V in which the angle of the adjacent divided heat insulating walls 31V is 90 ° is formed, and the rectangular parallelepiped heat insulating box 12V is formed. In addition, not only the angle of the adjacent divided heat insulating wall 31V is set to 90 °, but in this case, the angle of the adjacent divided heat insulating wall 31V is adjusted to approximately 90 °, and each corner of the heat insulating box 12V is approximately 90 °. It only has to be.

  Further, when the heat insulating box 12V is assembled, the first partition member 37V and the second partition member 38V are provided at predetermined positions so that the refrigerator room 39V, the vegetable room 40V, the ice making room 41V, and the first freezer room 42V. The second freezer compartment 43V is formed, and on the front opening side of the storage compartment, the right split heat insulating wall 313V and the left split heat insulating wall 314V are the first partition member 37V and the second partition member 38V. It is fixed by connecting.

According to the said structure, there exists the following effect.
Two adjacent heat insulation walls 31V are connected and fixed by a fixture 51V, whereby a heat insulation box 12V of the refrigerator 11V is formed. That is, the refrigerator 11V can be assembled by combining the divided heat insulating walls 31V and combining these divided heat insulating walls 31V with the fixture 51V. Therefore, according to this embodiment, the assembling work of the refrigerator 11V becomes easier than the conventional configuration in which the heat insulating member is provided in the three-dimensional inner box in advance.

Since the reinforcing members 55V and 82 of the fixture 51V function as an angle holding portion, the angle of the adjacent divided heat insulating walls 31V is held at 90 °. Thereby, the inner box 14V can be formed in a rectangular parallelepiped. Moreover, the combination of the division | segmentation heat insulation wall 31V becomes easy by the structure by which the corner | angular part of the inner box 14V is hold | maintained at 90 degrees.
Since the fixing tool 51V is fixed at a position facing the two heat insulating members 15V that are adjacently separated from each other, the heat insulating member 15V can be fixed with reference to the fixing tool 51V. Therefore, it is possible to easily maintain the angle between the adjacent divided heat insulating walls 31V at 90 °.

  On the front opening side of the storage room, the right divided heat insulating wall 313V and the left divided heat insulating wall 314V are connected and fixed by the first partition member 37V and the second partition member 38V. The front surface of 313V and the front surface of the left side divided heat insulating wall 314V are securely fixed. Thereby, the front opening of the inner box 14V can be prevented from opening in the left-right direction, and the inner box 14V can be prevented from being twisted, and the inner box 14V and the heat insulating box 12V can be kept in a rectangular parallelepiped.

  Since the electric wire 52V and the pipe 53V provided in the corner portion of the inner box 14V are covered with the fixture 51V, it is possible to prevent food from hitting the electric wire 52V and the pipe 53V, and the electric wire 52V and The piping 53V can be hidden from the user of the refrigerator 11V, and the design of the interior of the storage room can be improved.

Since the corner heat insulating members 56V and 83V are provided at the corner portion of the inner box 14V, the heat insulating effect at the corner portion can be enhanced. In addition, since the corner heat insulating members 56V and 83V are covered with the fixture 51V, the interior design of the storage room can be improved as described above.
Since the corner heat insulating members 56V and 83V are disposed so as to cover the separated portions of the adjacent divided heat insulating walls 31V, the heat insulating effect of the portion having a small heat insulating effect by the divided heat insulating walls 31V can be supplemented. Thereby, the heat insulation effect of the whole heat insulation box 12V can be improved.

  Since the fixture 51V has a cylindrical shape and the electric wire 52V, the pipe 53V and the corner heat insulating members 56V and 83V are housed inside the fixture 51V, the electric wire 52V, the pipe 53V and the corner heat insulating member 56V, 83V can be reliably made difficult to see from the user of the refrigerator 11V, and the design inside the storage room can be further improved.

Since the fixing tool 51V includes the reinforcing members 55V and 82V having an L-shaped cross section, it is possible to prevent the deformation of the fixing tool 51V, in particular, the occurrence of twisting and bending, as much as possible. In addition, since the fixing covers 54V and 81V are provided on the front surface of the reinforcing members 55V and 82V, that is, the opening having an L-shaped cross section, the fixing tool 51V can be formed into a cylindrical shape.
Since the electric wires 52V and the pipes 53V are held by the accommodating portions 67V and 98V of the corner heat insulating members 56V and 83V, the electric wires 52V and the pipes 53V can be prevented from being displaced from predetermined positions.

  Openings 59V and 60V are formed in the fixture 51V, and the electric wire 52V provided at the corner of the inner box 14V is guided to the storage chamber side. Thereby, the electric wire 52V led to the storage chamber side from the openings 59V and 60V can be connected to the electric wire outside the fixture 51V, that is, on the storage chamber side. In particular, since the electric wire 52V has a connecting portion 68V that connects to another electric wire at the portion of the fixture 51V that protrudes from the openings 59V and 60V, the electric wire 52V is connected to the other electric wire outside the fixing device 51V. Can be easily performed.

  Further, openings 86V and 88V are formed in the fixture 51V, and the piping 53V provided at the corner of the inner box 14V is guided to the storage chamber side. Thereby, the piping 53V led to the storage chamber side from the openings 86V and 88V can be connected to the piping on the storage chamber side. In particular, since the pipe 53V has a welded portion 99V that is welded to other pipes at the portions of the fixtures 51V that protrude from the openings 86V and 88V, the pipe 53V is welded to the other pipes outside the fixture 51V. Can be easily performed.

  Since the fixing tool 51V and the electric wire 52V are integrated and the fixing tool 51V and the pipe 53V are integrated, when the divided heat insulating wall 31V is connected and fixed by the fixing tool 51V, the electric wire 52V and the pipe are connected. 53V can also be provided at a predetermined corner portion of the divided heat insulating wall 31V. Thereby, the assembly work of the electric wire 52V and the piping 53V can be simplified.

  An electric wire 52V is provided at a corner portion on the left back side of the inner box 14V, and a pipe 53V is provided at a corner portion on the right rear side of the inner box 14V. The electric wire 52V is covered with a fixture 511V, and the pipe 53V is fixed. Since it was set as the structure covered with the tool 512V, it can prevent that the electric wire 52V is cooled by the piping 53V.

  Since a part of the pipe 53V is disposed along the edge of the second partition member 38V, the pipe 53V can be lengthened without increasing the size of the fixture 51V. Thereby, when piping 53V is a suction pipe, the efficiency of heat exchange of piping 53V can be improved, securing the storage space of a storage room enough.

Since the first seal members 71V and 101V are provided between the fixed cover 54V and the reinforcing member 55V and between the fixed cover 81V and the reinforcing member 82V, cold air flows into the fixing tool 51V. This can be prevented. Thereby, it can prevent that dew condensation arises in the components inside the fixture 51V, for example, the electric wire 52V.
Since the second sealing members 72V and 102V are provided between the divided heat insulating wall 31V and the fixture 51V, it is possible to prevent the cool air in the storage chamber from leaking to the outside of the heat insulating box 12V, and the heat insulating box. It is possible to prevent warm air outside of 12V from entering the storage chamber.

  Since the third seal members 73V and 103V are provided between the divided heat insulating wall 313V for the right surface and the divided heat insulating wall 315V for the back surface, and between the divided heat insulating wall 314V for the left surface and the divided heat insulating wall 315V for the back surface, The inside and outside of the heat insulation box 12V can be sufficiently insulated, and the inside of the heat insulation box 12V can be efficiently cooled.

  Since the fixture 51V is divided into a plurality in the direction extending along the corner portion, the fixture 51V can be easily handled. Further, since the second partition member 38V is arranged in the divided portion of the fixture 51V, it is possible to prevent the cool air in the storage chamber from entering the interior of the fixture 51V from the divided portion of the second partition member 38V. it can.

  The divided heat insulating wall 31V is composed of a wall 16V to 20V made of an outer plate, a wall 22V to 26V made of an inner plate and a vacuum heat insulating panel forming a heat insulating member 15V, and one surface of the vacuum heat insulating panel is bonded to the outer plate, Since the other surface of the heat insulating panel is bonded to the inner plate, the heat insulating effect by the vacuum heat insulating panel can be obtained, the divided heat insulating wall 31V can be thinned, and the wall of the heat insulating box 12V can be thinned. Moreover, according to the said structure, the electric wire and piping which were conventionally provided between the outer box and the inner box can be provided in the corner part which is hard to become obstructive at the time of storage of foodstuffs.

  An electric wire 52V or a pipe 53V protrudes from the vertical direction of the fixture 51V, a separation portion 211V is disposed immediately above the electric wire 52V or the piping 53V, and a separation portion 213V is disposed immediately below the electric wire 52V or the pipe 53V. A machine room 21V is provided immediately above the separation part 211V, and a component storage room 212V is provided immediately below the separation part 213V. Therefore, the electric wire 52V and the pipe 53V can be easily arranged at predetermined positions, and can be easily connected to other electric wires and pipes.

For the electric wire 52V shown in FIG. 45, an AC electric wire used for a heater, a compressor, or the like and a DC wire used for an LED, various sensors, or the like may be arranged apart from each other.
If the AC and DC wires are arranged together, there is a risk that noise may be generated, but there is an effect that the possibility of noise being generated can be reduced by separating as described above.

For example, a plurality of accommodating portions 67V may be provided, and AC and DC wires may be accommodated in each via a heat insulating material.
Further, if the AC and DC wires are accommodated in the fixtures 511V and 512V, respectively, and placed in different corners of the storage room, noise can be further reduced.
In particular, in this case, when the compressor and the electric control board to which the wiring is connected are arranged in the machine room 21V and the upper surface divided heat insulating wall 311V, there is a problem that noise tends to be applied because the wiring extends in the vertical direction. Noise can be effectively reduced by the above-described configuration of separation.

Moreover, you may provide the cold air duct for circulating cold air in the fixing tool 51V other than an accommodating part.
Moreover, you may provide the drainage hose which drains the defrost water of an evaporator in an accommodating part. In addition, when the vicinity of the housing is condensed or a drainage hose is arranged, the above-mentioned electric wire is arranged in the middle of the U-shape, and the trap serves as a water intrusion prevention means for preventing water from entering the electrical component May be provided.

  In addition, a freezing temperature zone, which is a freezing storage room composed of an ice making room 41V, a first freezing room 42V, and a second freezing room 43V, is arranged in the lower part in the vertical direction. You may arrange | position a vegetable compartment up and down and arrange | position a frozen storage room between them.

  In the embodiment of FIG. 36 described above, an evaporator capable of generating cold air in a freezing temperature zone disposed in the back of the freezer compartment 42V is provided with a freezer compartment farthest from the machine room 21V located at the top. The suction pipe that connects the compressor in the machine room 21V extends in the up-down direction, and there is a problem that the outside air that has entered the inside of the warehouse from the gap created by connecting more heat insulation walls will condense. By placing the freezer in the center and an evaporator that can generate cold air in the freezing temperature zone on the back, the distance between the suction pipe connecting the evaporator and the compressor can be shortened, making it difficult for condensation to occur. There is an effect.

  In that case, it is effective to arrange the suction pipe only in the space between the refrigerated storage zone and the compressor without extending from the evaporator in a direction different from the arrangement position of the compressor. The evaporator does not have to be a plurality of refrigeration evaporators and refrigeration evaporators, and may have a configuration in which the freezer compartment and the refrigerator compartment are cooled by an evaporator capable of generating cold air in the freezing temperature zone.

Further, the machine room 21V accommodating the compressor does not need to be positioned above the heat insulating box and may be disposed below.
In particular, when the refrigerator compartment is located above the freezer compartment and the vegetable compartment below, and the vegetable compartment has a smaller height than the refrigerator compartment, the evaporator placed on the back of the freezer compartment The distance through which the suction pipe from the plant passes through the vegetable compartment in the path to the compressor in the machine room where the rear of the vegetable compartment is recessed is shorter than when the compressor is placed above the refrigerator compartment Therefore, the distance of the suction pipe passing through the refrigeration temperature zone can be shortened, so that condensation can be prevented.

  In addition, although it demonstrated using the structure by which the electric wire and piping were provided in the corner part of the inner box, it is good also as a structure which a part other than those, such as a hose, is provided in the said corner part, and this part is covered with a fixing tool. .

In a corner portion where no partition member is provided, or when the length of the corner portion is short, the fixture may not be divided into a plurality of parts.
In the fixing device of the fifth embodiment, the extending portions of the second embodiment are provided at both ends in the width direction of the fixing cover, and the space between the extending portion and the inner box is replaced with the second sealing member. It is good also as a structure sealed with a 4th sealing member.

A part of the pipe or a part of the electric wire may be arranged along the left-right direction of the edge of the second partition member. Moreover, a part of piping and a part of electric wire may be arrange | positioned along the front-back direction or the left-right direction of the edge part of a 1st partition member.
As the heat insulating member used for the surface partitioning portion, a vacuum heat insulating panel, urethane, polystyrene foam or the like may be used, and these heat insulating members may be sandwiched between resin plates or metal plates from above and below.

The partition reinforcing plate may be omitted when the partition plate has sufficient strength.
Two adjacent heat insulating walls may be coupled and fixed by screws or the like in addition to the coupling and fixing of the above embodiment.
The procedure for assembling the heat insulation box described above is merely an example. For example, a procedure for attaching the divided heat insulation wall for the right surface or the divided heat insulation wall for the left surface to the fixture after attaching the fixture to the divided heat insulation wall for the back surface may be used.
A silicon sealer or the like may be used as the sealing member instead of the soft tape.
It is good also as a structure which provides a 2nd heat insulation member for corners in the corner part of the inner right side of an inner box, and accommodates piping inside the accommodating part of the heat insulation member for 2nd corners.

  Moreover, the refrigerator may have a mist discharge part which ejects mist to the inside of a storage chamber. This mist is generated by electrostatic atomization and preferably has a diameter of 1 to 1000 nm. In this case, it is possible to suppress the mist from being released from the space between the adjacent divided heat insulation walls by providing the fixture at the corner portion formed by the two adjacent heat insulation walls.

The fixture may be integrally formed on one wall of the inner box.
The divided heat insulating wall may be L-shaped or U-shaped when viewed from the side or upper surface. That is, the fixture not only connects and fixes the plate-shaped divided heat insulating walls, but also connects and fixes the divided heat insulating walls other than the plate shape, and the plate-shaped divided heat insulating walls and the divided heat insulating walls other than the plate shape. It is good.
The heat insulating member of the divided heat insulating wall, that is, the vacuum heat insulating panel may not be provided integrally with the wall of the inner box, and may be provided integrally with the wall of the outer box.
The heat insulating member of the divided heat insulating wall may be provided in contact with either one wall of the outer box or one wall of the inner box.

  A wall formed by dividing the inner box into a plurality of parts is connected and fixed by a fixture to form a box-shaped inner box, and the inner box is attached to the outer box and the heat insulating member integrated to attach the heat insulating box body. The structure to form may be sufficient. In this case, the wall formed by dividing the inner box into a plurality of shapes is not limited to a flat plate shape, and may be, for example, an L shape when viewed from the upper surface.

  As described above, the refrigerator according to the present embodiment is configured in a box shape by combining a plurality of heat insulating members with a heat insulating wall, and is provided in a corner portion formed by two adjacent heat insulating walls in a heat insulating box body. A fixture for connecting and fixing the heat insulating walls is provided. Therefore, it is possible to assemble a refrigerator by combining these heat insulating walls with a combination fixing tool, and it is easier to assemble the refrigerator than a conventional structure in which a heat insulating member is provided in a three-dimensional inner box in advance. Become.

<Sixth Embodiment>
The manufacturing method in which the heat insulation box differs from the previous embodiments will be described. The arrangement of the components used inside the heat insulation box has a structure in which the first to fifth embodiments can be used. Specifically, the fixing member 52 and the like of the fifth embodiment can replace the sheet member connecting plate 25 and the polystyrene foam 28 which will be described later.

  67 to 75 show a sixth embodiment. The heat insulation box 2 of the refrigerator shown in this sixth embodiment will be described. As shown in FIGS. 67 and 68, the heat insulation box 2 of the sixth embodiment includes a left heat insulation wall 9, a right heat insulation wall 10, an upper heat insulation wall 11, a lower heat insulation wall 12, which are equivalent to heat insulation walls. It has a rear heat insulating wall 13 and has a rectangular box shape with an open front surface. Furthermore, each heat insulation wall 9-13 is the structure provided with unit panel 16A-16E which is a vacuum heat insulation panel, respectively between outer-plate part 14A-14E and inner-plate part 15A-15E. In this case, one heat insulating wall, for example, the upper heat insulating wall 11, and two other heat insulating walls continuous on both sides thereof, for example, the left heat insulating wall 9 and the right heat insulating wall 10 constitute a heat insulating wall main body 2S in which the outer plate portion is continuous. ing.

  Moreover, in this heat insulation box 2, the upper and lower partition walls which have heat insulation materials, such as foaming urethane, are arrange | positioned in the store | warehouse | chamber, the upper part becomes the refrigerator compartment 80, the intermediate part becomes the freezer compartment 81, and the lower part is the vegetable compartment 82. And

The manufacturing method of the heat insulation box 2 is demonstrated. First, the heat insulating wall main body 2S is manufactured as described below.
FIG. 69 shows an integrated body formed by joining the right unit panel 16B and the right inner plate portion 15B of the right heat insulating wall 10 with an adhesive. As shown in FIG. 70, the adhesive coating method in this case is a coating method using a roll coat method. That is, among the pair of feed rollers 71 and 72, a supply roller 73 for supplying an adhesive to one feed roller 71 is provided so as to be able to contact the feed roller 71, and each of the rollers 71 to 73 is arranged in a direction indicated by an arrow. While rotating, by supplying an adhesive between the supply roller 73 and the feed roller 71 (winding side), while feeding the unit panel 16B in the direction of the arrow, an inner surface 16Bn (an outer surface to be described later) of the right unit panel 16B 16Bg (corresponding to the surface opposite to one surface)) is applied (corresponding to the step (a)).

  Thereafter, as shown in FIG. 69, the right inner plate portion 15B is bonded to the inner surface 16Bn of the right unit panel 16B. One end portion of the right inner plate portion 15B is bent in an opposite direction to the unit panel 16B at an angle of approximately 45 degrees (folded portion 15Bs). For example, a polystyrene foam is formed on the back surface of the bent portion 15Bs. A substantially insulating material 74B having a triangular cross section is provided by bonding. The left inner plate portion 15A of the left heat insulating wall 9 and the left unit panel 16A are also bonded in the same manner as described above, and similarly include a bent portion 15As and a heat insulating material 74A (see FIG. 71).

  Further, the upper inner plate portion 15C is bonded and fixed in advance to the inner surface of the upper unit panel 16C of the upper heat insulating wall 11 as well (corresponding to the step (e)). The upper inner plate portion 15C is provided with bent portions 15Cs1, 15Cs2 and heat insulating materials 74C1, 74C2 at both ends (see FIG. 74).

The upper outer plate portion 14C of the upper heat insulating wall 11, the left outer plate portion 14A of the left heat insulating wall 9, and the right outer plate portion 14B of the right heat insulating wall 10 are composed of a single plate member 75 (see FIG. 71). Has been.
Using this plate member 75 or the like, the heat insulating wall main body 2S is manufactured as described below.

  First, as shown in FIG. 71, the plate member 75 is placed on the work table Ws. The plate member 75 originally has a flat plate shape. In the plate member 75, a region corresponding to the upper outer plate portion 14 </ b> C of the upper heat insulating wall 11 is denoted by reference numeral 14 </ b> C ′ and the left outer plate portion of the left heat insulating wall 9. A region corresponding to 14A is denoted by reference symbol 14A ', and a region corresponding to the right outer plate portion 14B of the right heat insulating wall 10 is denoted by reference symbol 14B'. A boundary portion between the left outer plate portion equivalent region 14A ′ and the upper outer plate portion equivalent region 14C ′ is denoted by reference numeral K1, and a boundary portion between the right outer plate portion equivalent region 14B ′ and the upper outer plate portion equivalent region 14C ′. Is indicated by a symbol K2.

  The outer surface (one surface) 16Bg of the right unit panel 16B is bonded to the inner surface of the right outer plate portion equivalent region 14B ′ by a predetermined distance Sk from the boundary portion K2 with the upper outer plate portion equivalent region 14C ′, and is fixed by an adhesive. . In this case, the predetermined distance Sk is set to a substantially minimum distance that can secure a space occupied by bending jigs 76 and 77 described later. In this case, the adhesive may be applied to one surface of the outer surface 16Bg of the right unit panel 16B and the inner surface of the right outer plate portion equivalent region 14B ′ by, for example, spraying. Further, this coating method may be carried out by a roll coating method. Further, the outer surface (one surface) 16Ag of the left unit panel 16A is separated from the inner surface of the left outer plate portion equivalent region 14A ′ by a predetermined distance Sk similar to the above from the boundary portion K1 with the upper outer plate portion equivalent region 14C ′. Bonding and fixing with an adhesive (corresponding to step (a)).

  Next, as shown in FIG. 72, the end portions of the bending jigs 76 and 77 are respectively aligned with the two boundary portions K1 and K2 on the inner surface of the upper outer plate portion equivalent region 14C ′, and the upper The left outer plate portion equivalent region 14A ′ and the right outer plate portion equivalent region 14B ′ are bent 90 degrees inwardly via the folding jigs 76 and 77 with respect to the outer plate portion equivalent region 14C ′ (in the step (c)). Equivalent to).

At this time, since the unit panels 16A and 16B are separated from the boundary portions K1 and K2 by the predetermined distance Sk, the space occupied by the bending jigs 76 and 77 can be secured, and the unit panels 16A and 16B are secured. It does not hit the bending jigs 76 and 77 and does not hinder the above-described bending.
The state immediately after the bending is shown in FIG. From the state of FIG. 73, the bending jigs 76 and 77 are removed by moving in the direction of the arrow, and then, as shown in FIG. 74, the upper unit panel 16C in the integrated unit of the upper unit panel 16C and the upper inner plate portion 15C. The outer surface 16Cg is bonded and fixed to the inner surface of the upper outer plate portion corresponding region 14C ′ with an adhesive (corresponding to the step (D)).

  At this time, the bent portions 15Cs1, 15Cs2 and the heat insulating materials 74C1, 74C2 at both ends of the upper inner plate portion 15C close the space Sp inside the bent corner portions (the boundary portions K1, K2) of the plate member 75. Furthermore, the heat insulating materials 74C1 and 74C2 insulate the space Sp from the inside of the warehouse.

The heat insulating wall main body 2S is manufactured by the procedure described above.
Thereafter, as shown in FIG. 75, the lower heat insulating wall 12 is attached to the heat insulating wall main body 2S so as to close the openings of the left heat insulating wall 9 and the right heat insulating wall 10 of the heat insulating wall main body 2S. At this time, one end portion of the lower outer plate portion 14D is connected to the open end portion of the left outer plate portion 14A, and the other end portion of the lower outer plate portion 14D is connected to the open end portion of the right outer plate portion 14B. . Further, one end of the lower inner plate portion 15D is in contact with the bent portion 15As and the heat insulating material 74A of the left inner plate portion 15A, and the other end portion of the lower inner plate portion 15D is the bent portion 15Bs of the right inner plate portion 15B and It contacts the heat insulating material 74B. And the space inside the connection part (corner | corner part) of these lower outer board part 14D, left inner board part 15A, and right inner board part 15B is thermally insulated with the inside by the heat insulating materials 74A and 74B.

  Thereafter, as shown in FIG. 68, the rear heat insulating wall 13 is attached to the rear end portion of each heat insulating wall 9, 10, 11, 12. Thereafter, the sheet member connecting plate 25 and the polystyrene foam as the heat insulating material are provided inside the corner between the back heat insulating wall 13 and the left heat insulating wall 9 and inside the corner between the back heat insulating wall 13 and the right heat insulating wall 10, respectively. 28 is installed. A cold air circulation duct 78 communicating with the refrigerator compartment 80 and the vegetable compartment 82 is formed inside the sheet member coupling plate 25, in this case, the polystyrene foam 28.

  Note that the timing of bonding the left inner plate portion 15A to the left unit panel 16A may be after the left unit panel 16A is bonded to the plate member 75 alone. In this case, a spray adhesive application method may be used. The timing of bonding the right inner plate portion 15B to the right unit panel 16B and the timing of bonding the upper inner plate portion 15C to the upper unit panel 16C are the same. Further, among the portions corresponding to the bent portion 14Aa (see FIG. 68) in the plate member 75, the portions corresponding to the boundary portions K1 and K2 are preliminarily V cut to approximately 90 degrees so as not to prevent the plate member 75 from being bent. Has been.

  According to the sixth embodiment, among the outer plate portions 14A to 14E, the outer plate portions 14A, 14B, and 14C are configured by the single plate member 75, so that the space between the outer plate portions 14A, 14B, and 14C is continuous. (There are no joints), and the joints on the outer plate can be reduced. As a result, moisture absorption from the outside of the heat insulating box 2 and cold air leakage to the outside can be reduced while reducing the use of urethane foam.

  In addition, when the outer plate portions 14A, 14C, and 14B are formed by bending a single plate member 75, the inner surfaces of the left outer plate portion equivalent region 14A ′ and the right outer plate portion equivalent region 14B ′ of the plate member 75 are described. And a step of bonding one surface of each of the unit panels 16A and 16B at a predetermined distance Sk from the boundary portions K1 and K2 with the upper outer plate portion equivalent region 14C ', and a left outer portion on the inner surface of the upper outer plate portion corresponding region 14C'. The ends of the bending jigs 76 and 77 at the boundary K1 portion with the plate equivalent region 14A ′ and the boundary K2 portion with the right outer plate equivalent region 14B ′ on the inner surface of the upper outer plate equivalent region 14C ′. And the left outer plate portion equivalent region 14A ′ and the right outer plate portion equivalent region 14B ′ are folded inwardly via the bending jigs 76 and 77, respectively, with respect to the upper outer plate portion equivalent region 14C ′. Since the process is executed, left outside When the portion equivalent region 14A ′ and the right outer plate portion equivalent region 14B ′ are bent, the unit panels 16A and 16B and the inner plate portions 15A and 15B do not hit the bending jigs 76 and 77, and the above-described bending is performed. There will be no hindrance. Since the predetermined distance Sk is set to the minimum necessary space for the folding jigs 76 and 77, the space Sp generated in the bent portion can be minimized.

  Further, according to the sixth embodiment, before the unit panels 16A, 16B, and 16C are bonded to the plate member 75, the inner plate portions 15A, 15B, and 16C are attached to the outer surface 16Ag of the unit panels 16A, 16B, and 16C. , 16Bg, and 16Cg, an adhesive is applied to each outer surface 16Ag, 16Bg, and 16Cg by a roll coating method, and each inner panel portion 15A, 15B, and 15C is attached to each unit panel 16A, 16B by this adhesive. Since it adhere | attaches on 16C outer surface 16Ag, 16Bg, and 16Cg, adhesion | attachment by a uniform adhesive layer is attained.

  In addition, a heat insulating material 74B made of, for example, styrene foam is provided on the back surface of the bent portion 15Bs. The heat insulating material is provided at both ends of the lower heat insulating wall 12 which is shorter than the left and right heat insulating walls. Also good. When the heat insulating material 74 is bonded to the left and right heat insulating walls as in the embodiment, since the heat insulating wall main body is formed by bending, there is a possibility that the positions of the left and right heat insulating materials 74 may be shifted. 12 has a problem that it is difficult to connect, but after the heat insulating material is provided on both ends of the lower heat insulating wall 12 having a short length and the heat insulating wall main body 2S is formed, the lower heat insulating wall 12 is connected. Easy assembly without fear of slipping.

  The heat insulating material 74 may be provided separately from the heat insulating wall. For example, in the upper heat insulating wall 11, the upper inner plate portion 15 </ b> C is configured to be flat without the bent portions 15 </ b> Cs <b> 1 and 15 </ b> Cs <b> 2 at both ends, and does not include the heat insulating materials 74 </ b> C <b> 1 and 74 </ b> C <b> 2.

After forming the heat insulating wall main body 2s by bending, separate heat insulating materials 74C1 and 74C2 are arranged at the corners of the upper heat insulating wall 11 and the left and right heat insulating walls.
With such a structure, when closing the space Sp inside the bent corners (the boundary portions K1 and K2) of the plate member 75, the heat insulating materials 74C1 and 74C2 are adjusted while adjusting the position by attaching later. It becomes possible to arrange.

  Furthermore, for example, in the case of a configuration in which electric parts are incorporated in the heat insulating materials 74C1 and C2, if the heat insulating materials 74C1 and C2 are attached to the upper heat insulating wall 11 in advance, the heat comes out of the electric components during assembly. Although there is a problem that the electric wiring becomes an obstacle, if the heat insulating wall main body 2s is bent and then the separate electric parts and the heat insulating material to be mounted are arranged at the corners, the assemblability is improved.

  In addition, as an example of the electrical component, a means for illuminating the interior of the cabinet such as an LED may be used. If it does so, it can arrange | position to the corner part of the upper side heat insulation wall 11, and can illuminate the inside from the upper direction. In particular, since there is no foamed urethane in the upper heat insulating wall 11, the problem that there is no place for electrical components such as LED boards can be solved. Further, when a heat source such as an LED base is disposed near the space Sp, the space Sp is warmed by the heat. As a result, the temperature difference between the space Sp and the outside of the storage space is reduced, so that warm air outside the storage space is less likely to enter the space Sp, so that condensation within the space Sp can be prevented.

In addition, the storage room has a layout of a refrigerator room 80, a freezer room 81, and a vegetable room 82 in order from the top, and the freezer room 81 is arranged in a region not in contact with the lower heat insulating wall 12.
That is, it is different from the region in the side of the side where the corners of the outer boxes of the plurality of adjacent heat insulating walls such as the plate member 75 of the heat insulating wall main body 2S formed by bending are continuously formed (region corresponding to the refrigerator compartment 80). In the position (the refrigerator compartment 80 or 81 freezer compartment 81) which is a position and is separated from the region on the heat insulating wall side (region corresponding to the vegetable compartment 82) where the outer plate is not continuous and is divided to form the outer box The storage temperature zone is lower than the other chambers (for example, the freezer compartment 80 compared to the vegetable compartment 82).

The heat insulation wall that forms the outer box by dividing the outer plate is not continuous, and the outside air flows from the joint of the connecting part of the outer plate part toward the corner between the outer box and the inner box, and moisture is removed. Since the contained air cools, there is a problem that the corner space is dewed. In particular, the temperature difference between the freezer compartment and the outside air is the highest, and the amount of air entering increases.
However, a room with a high storage temperature zone is formed in a region in contact with the heat insulating wall that is divided as described above to form an outer box, and a chamber with a low temperature zone is compared with the chamber in the high temperature zone at a location away from the region. By arranging, outside air can be prevented from entering the corner space.

  In particular, the vegetable compartment 82 in contact with the lower heat insulating wall 12 in FIG. 67 has connecting portions between the outer plate portions 14A and 14B and the outer plate portion 14D on the left and right sides of the lower surface, and on the left and right sides of the rear surface in FIG. While there are many joints between the plate portions 14A, 14B and the outer plate portion 14E, it is a region away from the lower heat insulating wall 12 that provides the outer plate portion 14D, between the refrigerator compartment and the vegetable compartment. The region of the freezer compartment 81 that is located is that the joint is only the connecting portion between the outer plate portions 14A and 14B and the outer plate portion 14E on the left and right of the back surface of FIG. Compared with the case where it arrange | positions to, the amount of intrusion of external air can be decreased.

  In particular, when the L-shaped portion 17 as shown in FIG. 6 of the first embodiment, which is a bent portion forming a machine room for storing a compressor or the like, is provided in the lower heat insulating wall 12, the area of the joint increases, so that the outside air Although there are more issues of entry, in such a case, it is possible to prevent condensation more effectively by disposing the freezer compartment at a location not in contact with the machine room.

  Furthermore, in the present embodiment, the heat insulating wall main body 2S forms the left heat insulating wall 9, the right heat insulating wall 10, and the upper heat insulating wall 11 by bending the plate member 75. However, the freezer compartment 81 has a continuous outer plate. If the heat insulating wall main body 2S formed by bending the plate member 75 is positioned at the center of the upper and lower sides, which is a region separated from the heat insulating wall that is divided to form the outer box, the rear heat insulating wall and the left and right heat insulating walls It is good to comprise.

In the configuration of FIG. 68, there is a problem that the outside air is intruded into the cabinet because there is a connecting portion R at the corner on the back side of the freezer compartment 81. Since the box is constituted by a continuous outer plate, the heat insulating wall surrounding the freezer compartment has no path to be connected to the outside air, so the problem can be solved.
In addition, the cold air circulation duct 78 is provided at the left and right corners of the inner side of the rear heat insulating wall 14E. The circulation duct 78 is disposed across the freezer compartment 81 located at the upper and lower centers, and rotation of a fan (not shown). As a result, a cold air flow from the refrigerator compartment 80 to the vegetable compartment 82 occurs.

As described above, there are connecting portions between the outer plate portions 14A and 14B and the outer plate portion 14E on the left and right sides of the rear surface of FIG. 68, and air flows from a warm place to a cold place. The flow of outside air to the freezer compartment 81 is low, the outside air flows into the space in the area where the soft tape 29 is disposed, and the outside air containing moisture is cooled and condensed due to the low temperature of the freezer compartment 81. Although there is a problem, if the cold air circulation duct 78 is arranged opposite to the space in the area where the soft tape 29 is arranged, the cold air flowing in the cold air circulation duct 78 has a refrigeration temperature range of 0 ° C. or higher. Since it is cool air having a temperature (for example, about 6 ° C.) and higher than the temperature in the freezing temperature zone, the temperature difference from the outside air becomes small, and it has an effect that the cool air hardly enters.
Further, in the vicinity of the cold air circulation duct 78, a water transfer pipe for supplying ice storage water, draining it, and draining defrost water of the evaporator may be provided particularly on the side different from the freezer compartment 78 side.

  Since the water transfer pipe has a problem of freezing of the internal water due to the influence of the freezing temperature zone of 0 ° C. or lower (for example, −18 ° C.) of the freezing room 81, the space X in FIG. However, there is a problem that the grounding volume of the vacuum heat insulation panel is reduced and the heat insulation is poor, and the cold air circulation duct 78 is cold air in a higher temperature range (for example, + 6 ° C.) than the freezing temperature range. Therefore, the water in the water transfer pipe can be prevented from freezing and the water can be moved effectively. Therefore, since a water movement pipe can be arrange | positioned inside a warehouse from an inner box, since a vacuum heat insulation panel can be arrange | positioned more widely, heat insulation can be improved.

Further, in the case where the outer box is configured by being connected to a plurality of outer plate parts such as FIG. 68 as described above, in order to prevent air from flowing into the chamber, the pressure in the chamber is increased and the temperature difference is increased. It is desirable to increase the pressure in the chamber so that a slight amount of cool air can be discharged outside through the extremely small gap of the connecting portion to counteract the inflow of air, thereby balancing the air in / out balance.
For example, a duct is provided on the back surface so that cold air circulates in the freezer compartment 81, a fan for circulating the cold air and an evaporator for cooling the cold air are provided therein, and the flow of the cold air is arranged upstream of the fan. By flowing so as to be positioned, the pressure in the warehouse can be increased.

Moreover, the pressure in a store | warehouse | chamber can be made high by providing a fan in the position close | similar to the cold-air outlet to the store | warehouse | chamber provided in the duct.
In addition, it is desirable that the pressure structure be balanced so that outside air outside the warehouse does not flow in. However, the defrost water of the evaporator is outside the storage chamber and is in contact with the outside air so that the cold air can be discharged from the connecting portion. Assuming a structure of a non-sealed storage room that is connected to the outside air partially by the drain pipe, etc., the air from the drain pipe leading to the machine room etc. is sucked by the fan, cooled by the evaporator's cold air and blown out into the warehouse Good. And the area of the diameter of this drain pipe is very small compared with the length which comprises a connection part.

In addition, it is preferable to provide a sealing means in a connecting portion that is connected to a plurality of outer plate portions as shown in FIG. This makes it difficult for outside air to enter.
The soft tape 29a of FIG. 68 may be used as a sealing means, and as another example, a soft tape or silicon may be provided at a portion where the connecting portion R wraps with the outer plate portion 14E and the outer plate portion 14A to serve as the sealing means.

And it is set as the structure where the path | route Y of the wind which flows into the store | warehouse | chamber from the space X of a corner is formed, for example, the clearance gap is provided between the heat insulating material 28 and the inner box 15. FIG.
This is because there is a problem that the outside air that has entered the corner space X from the connecting portion R is condensed due to the cold temperature in the warehouse, so by providing a part of the gap, the outside air flows into the warehouse. It is possible to prevent condensation in the space X.
Further, it is preferable to provide a sealing means further on the inner side than the sealing means located near the connecting portion R so that the cool air in the warehouse does not flow out from the connecting portion R and moisture does not flow into the warehouse.

In FIG. 68, the connecting portion R-side sealing means is a soft tape 29a, and the inside sealing means is a soft tape 29b. In addition, another soft tape etc. may be arrange | positioned as a warehouse inner side sealing means as a warehouse inner side sealing means between the heat insulating material 28 arrange | positioned at the corner | angular of the inner box 15, and an inner-plate part, for example.
And it is preferable that the inside sealing means (soft tape 29b) with respect to the connecting portion has a lower moisture permeability resistance [unit: m2 hmmHg / g] than the outside sealing means (soft tape 29a). .

  The moisture permeation resistance value is a value that is difficult for moisture to pass through, by increasing the moisture permeation resistance value of the sealing means on the connecting portion side and lowering the moisture permeation resistance value of the sealing means on the inner side, It is possible to prevent the outside air from entering from the connecting portion by the sealing means on the side, and the outside air that has entered from the connecting portion enters the cabinet for the purpose of eliminating the problem of condensation at the corner. In order to facilitate, it is preferable to use a sealing means on the inner side having a low moisture permeability resistance to some extent. In the case of FIG. 68, the soft tape 29a is preferably made of a material having a higher moisture resistance than the soft tape 29b.

  76 to 80 show a seventh embodiment. In this seventh embodiment, the inside of the corner between the left outer plate portion 14A of the left heat insulating wall 9 and the upper outer plate portion 14C of the upper heat insulating wall 11, In addition, flexible heat insulating materials 85 and 85 such as silicon sponge and urethane sponge are arranged inside corners of the right outer plate portion 14B of the right heat insulating wall 10 and the upper outer plate portion 14C of the upper heat insulating wall 11. Different from the seventh embodiment. Further, the lower outer plate portion 14D of the lower heat insulating wall 12 and the left outer plate portion 14A and the inside of the left heat insulating wall 9 of the left heat insulating wall 9, and the lower outer plate portion 14D of the lower heat insulating wall 12 and the right outer plate of the right heat insulating wall 10 are provided. The point that flexible heat insulating materials 86, 86 such as silicon sponge and urethane sponge are also arranged inside the corner portion with the portion 14B is also different from the sixth embodiment.

  As shown in FIG. 77, the heat insulating materials 85 and 85 are bonded to the other end (end on the boundary K1 side) of the left unit panel 16A and the other end (end on the boundary K2 side) of the right unit panel 16B. (Not bonded to the plate member 75). Further, as shown in FIG. 77, the heat insulating materials 86 and 86 are bonded to arbitrary members on the other end sides (the inner surfaces of both end portions of the plate member 75) of the unit panels 16A and 16B.

  Thereafter, as shown in FIG. 78, the heat insulating materials 85 and 85 are slightly lifted and the ends of the bending jigs 76 and 77 are arranged in accordance with the boundary portions K1 and K2. Thereafter, the left outer plate portion equivalent region 14A ′ and the right outer plate portion equivalent region 14B ′ of the plate member 75 are bent (see FIG. 79). In this case, since the heat insulating material 85 is flexible, the above-described bending is not hindered. Thereafter, as shown in FIG. 80, when the integrated unit of the upper unit panel 16C and the upper inner plate portion 15C is attached (adhered) to the inner surface of the upper outer plate portion equivalent region 14C ', the heat insulating materials 85 and 85 are naturally left. The corner portion between the left outer plate portion 14A of the heat insulating wall 9 and the upper outer plate portion 14C of the upper heat insulating wall 11, and the right outer plate portion 14B of the right heat insulating wall 10 and the upper outer plate portion 14C of the upper heat insulating wall 11 are provided. It is placed inside the corner.

The other heat insulating materials 86 and 86 may be appropriately inserted and arranged when the lower heat insulating wall 12 is incorporated into the heat insulating wall main body 2S.
According to the sixth embodiment, the heat insulating materials 85, 85, 86, 86 can prevent cold air leaks inside the corner portions of the outer plate portions 14A to 14D. Moreover, the inside of the corner between the left outer plate portion 14A of the left heat insulating wall 9 and the upper outer plate portion 14C of the upper heat insulating wall 11, and the right outer plate portion 14B of the right heat insulating wall 10 and the upper outer plate portion of the upper heat insulating wall 11 are used. Since the heat insulating materials 85 and 85 disposed inside the corners of 14C are made of a flexible heat insulating material, the heat insulating materials 85 and 85 are bent when the plate member 75 is bent by the bending jigs 76 and 77. There is no hindrance.

  The combination of the three heat insulating walls constituting the main heat insulating wall is not limited to the combination of the left heat insulating wall 9, the upper heat insulating wall 11, and the right heat insulating wall 10, but the left heat insulating wall 9, the lower heat insulating wall 12, and the right heat insulating wall. Various combinations such as combinations of the walls 10, combinations of the left heat insulating wall 9, the back heat insulating wall 13 and the right heat insulating wall 10, and combinations of the upper heat insulating wall 11, the back heat insulating wall 13 and the lower heat insulating wall 12. May be.

  The bent portions 15As, 15Bs, 15Cs1, and 15Cs2 are formed integrally with the inner plate portions 15A, 15B, and 15C. However, the bent portions 15As, 15Bs, 15Cs1, and 15Cs2 are formed as separate flat plates. , 74C1 and 74C2 may be provided, and the flat plate and the heat insulating material may be finally attached to each corner portion as shown in FIG.

  As described above, according to the method for manufacturing the heat insulation box of the refrigerator of the present embodiment, one outer plate portion of one heat insulation wall and two other heat insulation walls continuous on both sides of the heat insulation wall is provided. Therefore, even if there is no or little foamed urethane, moisture absorption from the outside can be effectively prevented.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and common portions of the above-described embodiments can be omitted in various ways without departing from the spirit of the invention. Can be replaced or changed. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  In the drawings, 1 is a refrigerator, 2 is a heat insulating box, 9 is a left heat insulating wall (unit heat insulating wall), 10 is a right heat insulating wall (unit heat insulating wall), 11 is an upper heat insulating wall (unit heat insulating wall), and 11b is a machine room. , 12 is a lower heat insulating wall (unit heat insulating wall), 13 is a rear heat insulating wall (unit heat insulating wall), 14 is an outer box, 14A is a left outer plate portion, 14B is a right outer plate portion, and 14C is an upper outer plate portion. , 14D is a lower outer plate portion, 14E is a rear outer plate portion, 15 is an inner box, 15A is a left inner plate portion, 15B is a right inner plate portion, 15C is an upper inner plate portion, 15D is a lower inner plate portion, 2S is Main body of heat insulating wall, 75 is a plate member, 76 and 77 are bending jigs, 80 is a refrigerator compartment, 81 is a freezer compartment, 82 is a vegetable compartment, 14A ′ is a region corresponding to the left outer plate portion, and 14B ′ is a portion corresponding to the right outer plate portion An area 14C ′ represents an upper and outer plate portion equivalent area.

Embodiments of the present invention relate to a heat insulating wall of a heat insulating box .

In some refrigerators, a heat insulating wall constituting a heat insulating box is formed by bonding a vacuum heat insulating panel and a plate portion with a reactive hot melt.

There exists a subject that a vacuum heat insulation panel and a board part will deform | transform by the gas which generate | occur | produced from the reactive hot melt.

The heat insulating wall of the heat insulating box of the embodiment is a heat insulating wall that is configured by adhering a vacuum heat insulating panel and a plate part by a reactive hot melt that constitutes a heat insulating wall of a refrigerator, and is formed from the reactive hot melt. A path for releasing the generated gas from the heat insulating wall was provided.

In order to deal with such a problem, as described above, a path through which gas (carbon dioxide gas) escapes from the heat insulating wall is provided. That is, as shown in FIGS. 85 to 86, the groove 301 as the path is formed on one surface or the other surface of the vacuum heat insulating panel 16. The concave groove 301 is continuous to both ends of the vacuum heat insulating panel 16.

Further, according to this embodiment, the degassing portion 302 as the path is formed in the inner plate portion 15. According to this, the carbon dioxide gas generated from the hot melt M between the inner plate portion 15 and the vacuum heat insulation panel 16 can escape from the gas vent portion 302 to the outside of the heat insulation wall, and the carbon dioxide gas described above. Generation of accumulation can be prevented. In this case, since the degassing portion 302 is configured from a hole, the manufacture is easy.

In addition, as shown in FIG. 87, an embodiment in which a gas distribution member 303 is provided as a path through which carbon dioxide gas can circulate on the adhesion-side surface (both surfaces or one surface) of the vacuum heat insulation panel 16 may be used. . In this case, the gas flow member 303 is made of soft urethane that is thin and capable of gas flow, open-cell sponge, paper aggregate, cardboard, and the like. In this case, the gas flow member may be provided on the adhesion side surface of the outer plate portion 14 or the inner plate portion 15.

As described above, the vacuum heat insulating panel 16 and the plate portion (the outer plate portion 14 and / or the inner plate portion 15) are bonded by the reactive hot melt M to form the heat insulating wall of the heat insulating box. in applying a hot melt M in stripes, by bonding the plate portions 14 and 15 of the vacuum insulation panel 16 and the counterpart, the between the vacuum insulation panel 16 and the mating plate portions 14 and 15 A part to be bonded (a minute gap) as a path is formed, carbon dioxide gas can be released, and generation of carbon dioxide gas pool can be prevented.

Claims (2)

It has a left heat insulation wall, a right heat insulation wall, an upper heat insulation wall, a lower heat insulation wall, and a back heat insulation wall, and has a rectangular box shape with an open front, and each heat insulation wall is between an outer plate portion and an inner plate portion. About manufacturing a heat insulation box of a refrigerator with a configuration equipped with a vacuum heat insulation panel
The heat insulation wall main body which consists of one heat insulation wall among the said each heat insulation wall and another two heat insulation wall which continues on both sides of this is manufactured from the following (a) process to (e) process, Then, this heat insulation wall main body A method for manufacturing a heat insulation box for a refrigerator in which two heat insulation walls remaining on the wall are attached.
(A) Step: Using a single plate member having a corresponding area of each outer plate of the one heat insulating wall and the other two heat insulating walls, each outside of the two heat insulating walls in the plate member Each vacuum heat insulation panel of each of the two other heat insulation walls is positioned at a part of the inner surface of the plate part equivalent region at a predetermined distance from each boundary part with the one outer plate part equivalent region. Bonding one surface to the inner surface of each outer plate portion corresponding region of the two heat insulating walls,
(A) Step: Before or after the execution of the step (A), the step of adhering the inner plate portion to the surface opposite to the one surface of the vacuum heat insulating panels to be bonded in the step (A),
(C) Step: After the execution of the step (a) and the step (a), two folding jigs are respectively bent on the inner surface of the one outer plate portion corresponding region of the plate member at the respective boundary portions. A step of aligning the ends of the jig and folding the two outer plate portion equivalent regions inwardly with respect to the one outer plate portion equivalent region via the bending jig;
(D) Step: After removing the bending jig, the step of bonding one surface of the vacuum heat insulation panel to the inner surface of the one outer plate equivalent region,
(E) Step: A step of bonding an inner plate portion to a surface opposite to the one surface of the vacuum heat insulating panel to be bonded in the step (d) before or after the execution of the step (d).   Before the execution of the step (A), when an inner plate portion is bonded to the surface opposite to the one surface of the vacuum heat insulation panels to be bonded in the step (A), the inner surface is attached to the opposite surface of the vacuum heat insulation panel. The manufacturing method of the heat insulation box of the refrigerator of Claim 1 which apply | coated the adhesive agent by the roll coat system and adhere | attached the said inner-plate part on the said opposite surface of the said vacuum heat insulation panel with this adhesive agent.

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