JP6005342B2 - refrigerator - Google Patents

Description

  Embodiments of the present invention relate to 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. The inner box is composed of an integrally molded product formed entirely by injection molding or vacuum molding.

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

  In the above-described refrigerator, the inner box does not have a protruding portion such as a support portion that supports a shelf board installed in the cabinet or a guide rail attachment portion that supports a pull-out container. Since such a protrusion is indispensable in a refrigerator, it must be provided in the inner box. However, in the above-described refrigerator, when the protrusion is to be provided, there is a problem that the protrusion has to be configured as a separate part from the inner box, and this separate part must be attached, resulting in a large number of manufacturing steps.

  Accordingly, a refrigerator capable of reducing the number of manufacturing steps is provided.

The refrigerator according to the embodiment includes an outer box, an inner box provided with a shelf support part, a guide rail mounting part, or a partition wall support part, and a vacuum heat insulation panel arranged between the outer box and the inner box. It is a refrigerator provided with a heat insulating box, wherein the inner box is provided with a protruding portion protruding into a warehouse, the inner box is composed of a plurality of divided inner plate portions, the inner plate portion, The projecting portion is composed of an integrally formed product and a flat sheet member that is not an integrally molded product , and the outer box is composed of a plurality of divided outer plate portions, Similarly to the outer box, the box is composed of a plurality of divided inner plate portions, and at least one of the plurality of inner plate portions is composed of an integrally formed product in which the protruding portions are integrally formed, and the vacuum The heat insulation panel is similarly composed of a plurality of unit panels divided, The divided unit panels are arranged between the divided outer plate portion and the inner plate portion to constitute a plurality of unit heat insulating walls, and the heat insulating box body includes the plurality of unit heat insulating walls. The inner plate portion made of an integrally molded product in which the protruding portion is integrally formed and the inner plate portion made of the flat sheet member are adjacent to the one unit panel. A plurality of the projecting portions are arranged in the height direction of the inner box, and at least one of the shelf board support portion, the guide rail mounting portion, or the partition wall support portion is the inner box. The inner plate portion made of an integrally molded product formed integrally with the protruding portion is connected to a unit heat insulating wall having the flat sheet member. It is characterized by having .

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 back inner plate The perspective view which shows the attachment state of the fixing tool with respect to a back inner board part. Same vertical side view Longitudinal side view of the fixture with the connecting plate for sheet member attached Transverse plan view of the connecting part between the cross beam member and the left heat insulating wall Vertical side view showing the mounting state of the shelf support FIG. 16 is a longitudinal side view showing a mounting state of the shelf support member in a cross section different from FIG. Exploded side view of shelf board support, left inner plate and screw Vertical side view of partition wall support Same perspective view 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 Longitudinal side view with the guide rail mounting part disassembled Longitudinal side view of the guide rail mounting part A vertical side view of the guide rail mounting part showing the third embodiment Longitudinal side view with the guide rail mounting part disassembled Longitudinal front view showing the fourth embodiment and showing a part of the heat insulation box Longitudinal front view of a part of an insulated box Longitudinal front view with part of the heat insulation box disassembled

<First Embodiment>
First, the refrigerator 1 by 1st Embodiment is demonstrated with reference to FIGS. 1-20. 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. The left and right revolving doors 3 and 4 are rotated by a pair of upper and lower hinges 3a and 3b attached to the heat insulating box 2, as well as a pair of upper and lower 4a and 4b, as shown in FIGS. 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 different storage chambers is attached to the rear side of the cross beam member 51, and a second partition wall 56 for further partitioning different storage chambers is attached to the rear side of the cross beam member 52. ing.

  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 revolving door 3 and the right revolving door 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 foamed polystyrene or foamed urethane to partition the vegetable room 58 having a large storage temperature difference, the small freezing room 59 and the ice making room 60 in an adiabatic manner, In addition, the first partition wall 55 is made of, for example, a synthetic resin plate material in order to partition the refrigerator compartment 57 and the vegetable compartment 58, which do not have a large 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. 1 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 constituting 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.
Since the left inner plate portion 15A and the right inner plate portion 15B are symmetric, the left inner plate portion 15A will be described. As will be described later, the left inner plate portion 15A which is a part of the inner box 15 is a shelf support portion 40a, 40b, 40c, a guide rail mounting portion 41a, 41b, and a partition wall support portion 42a, 42b. And an integrally formed product Ia (in the right inner plate portion 15B) in which the shelf plate support portions 40a, 40b, 40c, the guide rail mounting portions 41a, 41b, and the partition wall support portions 42a, 42b are integrally formed. It is composed of a symmetric integral molded product Ib).

As shown in FIG. 6, the upper inner plate portion 15 </ b> C is made of a synthetic resin (for example, olefin resin) integrally molded product Ic 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 made of a synthetic resin integrally formed product Id integrally including a drainage receiving portion 18 as a bent portion. These integrally molded products Ia, Ib, Ic, Id are formed by, for example, injection molding. Vacuum forming may be used.

Further, the back inner plate portion 15E is made of a flat sheet member Sa made of synthetic resin. The sheet member Sa can be manufactured by extrusion molding, rolling molding, or the like 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 evacuation. 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.

And the front end part in the outer box 14 and the inner box 15, for example, the left outer plate part 14A front end part and the left inner plate part 15A front end part of the left heat insulating wall 9, is a heat insulating material as shown in FIG. They are connected by a front end connecting member 21 made of synthetic resin. In this case, 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, respectively, and are further bent inward. This bent portion 16Aa is configured not to enter the inside (storage chamber side) of the heat insulating box 2, and prevents heat (outside air heat) of the outer box 14 (left outer plate portion 14A) from being transmitted to the storage chamber. doing.
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 part 15C and the upper outer plate part 14C, and the upper inner plate part 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 a synthetic resin integral molded product Ic integrally having an L-shaped portion 17 that bulges into the warehouse as a bent portion. As shown in FIG. 2, the outer plate portion 14C similarly has an L-shaped portion 17a. Therefore, the upper heat insulating wall 11 has a form in which the rear portion protrudes downward as a whole, in other words, a concave shape in the rear portion. The part 11a 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.

The machine room 11b is closed by a machine room cover 11c shown in FIG.
Further, as shown in FIG. 10, the upper outer plate portion 14C is separated from the upper surface of the upper unit panel 16C and is connected to the left outer plate portion 14A and the right outer plate portion 14B of the left heat insulating wall 9. Further, the upper inner plate portion 15C has a connecting portion 15C1 (also in FIG. 6) for connecting to the left inner plate portion 15A and the right inner plate portion 15B which are inner side walls on both side edges. The distal end portion of the connecting portion 15C1 is connected to the left inner plate portion 15A by a connecting tool (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 addition, the adhesion surface with the unit panel in the integrally molded products Ia, Ib, Ic, Id (the left inner plate portion 15A, the right inner plate portion 15B, the upper inner plate portion 15C, the lower inner plate portion 15D) made of the olefin resin is as follows. The surface is processed so as to be a rough surface, thereby improving the adhesion with the unit panel. Further, the sheet member Sa (back inner plate portion 15E) made of ABS resin has good adhesion to the unit panel.

A connection configuration between the left heat insulating wall 9 and the back heat insulating wall 13 will be described with reference to FIGS. 9 and 11 to 14. In addition, since the connection structure of the right side heat insulation wall 10 and the back side heat insulation wall 13 is right-and-left symmetrical with the connection structure of the left side heat insulation wall 9 and the back side heat insulation wall 13, description is abbreviate | omitted.
A sheet as a connecting member for a sheet member for connecting the inner wall 15 </ b> E (sheet member Sa) of the inner heat insulating wall 13 to the inner edge 15 </ b> A of the inner left wall 15 </ b> A of the left heat insulating wall 9. The member connecting portion 25 is integrally formed. The sheet member connecting portion 25 is attached to the back heat insulating wall 13 by a fixture 26 as a protruding portion which is a separate part from the sheet member described below.

  The fixture 26 is made of synthetic resin, for example, ABS resin. As shown in FIGS. 11 to 14, the fixture 26 has a slightly vertically long rectangular shape, and has hook-like portions 26 a and 26 a that protrude in the vertical direction on one end side. Have. 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 back unit panel 16E with, for example, an adhesive directly before the back heat insulating wall 13 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 back inner plate portion 15E (sheet member Sa) in advance. The back surface of the plate portion 15E (including the end surface on the back unit panel 16E side of the fixture 26) is bonded with an adhesive. In this case, the hook-shaped portions 26a and 26a are sandwiched between the back inner plate portion 15E that is a sheet member and the back unit panel 16E that is a vacuum heat insulating panel. As a result, the fixture 26 is attached to the inner heat insulating wall 13 and protrudes into the inner box 15. The fixtures 26 are provided at a plurality of positions on the left and right side ends of the back side heat insulating wall 13 (left and right end portions of the back inner plate portion 15E).

A foamed polystyrene 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 portion 25 for the sheet member.
In addition, on the inner surface of the inner box 15 (the inner inner plate portion 15E made of the sheet member Sa) in the inner heat insulating wall 13, a synthetic resin back cover fitting as a protruding portion that is a separate part from the sheet member is appropriately provided. 37 (see FIGS. 1 and 2). The back cover attaching tool 37 is for attaching a back cover for hiding a duct disposed in the front portion of the back heat insulating wall 13 and is attached by the same attachment structure as the fixing tool 26.

  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, the 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 also symmetrical and basically the same. . 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.

  Here, the said shelf board support parts 40a, 40b, and 40c support the shelf board which is not shown in figure by which the left and right side surfaces (the left inner board part 15A and the right inner board part 15B) form a pair. The guide rail mounting portion 41a is for mounting a guide rail that supports the vegetable container integrated with the pull-out door 5 so that it can be pulled out, and the guide rail mounting portion 41a is a pull-out door. 8 is for attaching a guide rail that supports the refrigerated product storage container integrated with 8 so as to be drawable. Furthermore, the partition wall support portions 42a and 42b are for supporting the first partition wall 55 and the second partition wall 56, respectively.

The structure and reinforcement structure of these shelf board support parts 40a, 40b, 40c, guide rail attachment parts 41a, 41b, and partition wall support parts 42a, 42b will be described.
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. 16 to 18, the shelf board support portion 40 a protrudes from the left inner plate portion 15 </ b> A, which is an integrally molded product Ia, so as to bulge in the inward direction, and is part of the inner surface portion. A screw boss portion 43 is formed. 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.

  Further, since the partition wall support portions 42a and 42b have the same configuration, the upper partition wall support portion 42a will be described. As shown in FIGS. 19 and 20, the partition wall support portion 42a protrudes from the left inner plate portion 15A, which is an integrally molded product Ia, so as to bulge in the inward direction, and has a screw hole portion on the inner surface portion. 42u is formed. A reinforcing plate 46 made of, for example, a metal plate as a reinforcing member is attached to the inner surface of the partition wall support portion 42 a by screws 47. Thereby, 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) provided with the reinforcing plates 44 and 46, the shelf support portions 40a, 40b and 40c, the guide rail mounting portions 41a and 41b, and the partition wall support portions 42a and 42b, which are protruding portions, respectively. It is sufficient to reinforce.

  In the above-described first embodiment, the shelf support parts 40a, 40b, 40c, the guide rail mounting parts 41a, 41b, and the partition wall support part as the protruding parts from which the inner box 15 of the heat insulation box 2 protrudes into the cabinet. 42a and 42b. The left inner plate portion 15A and the right inner plate portion 15B of the inner box 15 are constituted by an integrally molded product Ia in which these protruding portions are integrally formed.

According to this, since the protrusion part which protrudes in a store | warehouse | chamber was integrally formed with the inner box 15, it is not necessary to manufacture a protrusion part as a separate part, and installation man-hours are not required, and a manufacturing man-hour can be reduced generally. .
In order to obtain the above effect, the inner box 15 may be constituted by a single integrally formed product in which the above-described protrusions are integrally formed.

  Moreover, according to this 1st Embodiment, since the inner box 15 was comprised from the inner-plate part 15A-15E divided | segmented into plurality, in the inner box 15, the inner-plate part corresponding to the position of a protrusion part is concerned. What is necessary is just to comprise from the integrally molded product which has a protrusion part integrally, and the magnitude | size of an integrally molded product may be small, and it can contribute to the reduction of manufacturing cost. Moreover, since it is possible to employ a sheet member for the inner plate portion that is not an integrally molded product, this can also contribute to a reduction in manufacturing cost. In this case, the number of divisions of the inner plate portion may be changed.

  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 The inner plate 15 is composed of an outer plate portion 14E, and the inner box 15 is divided into a plurality of inner plate portions in the same manner as the outer box 14. In this case, the left inner plate portion 15A, the right inner plate portion 15B, the upper inner plate portion 15C, and the lower inner plate 15D and back inner plate portion 15E, and among these inner plate portions, left inner plate portion 15A, right inner plate portion 15B, upper inner plate portion 15C, and lower inner plate portion 15D are integrally formed products 1a and Ib. , Ic, Id, and the vacuum insulation panel 16 is also divided into a plurality of unit panels. In this case, the left unit panel 16A, the right unit panel 16B, the upper unit panel 16C, the lower unit panel (not shown), the back Consists of a unit panel 16E, each of the divided outer plate portion and the inner plate portion The divided unit panels are arranged to form 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 rear heat insulating wall 13 as a plurality of unit heat insulating walls, The heat insulation box 2 was configured by connecting these heat insulation walls 9 to 13.

  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, in the first embodiment, the divided inner plate portion of the inner box 15 includes inner plate portions 15A and 15B made of integrally formed products Ia and Ib in which the protruding portions are integrally formed, and protruding portions of separate parts. And an inner plate portion 15E made of a flat sheet member Sa. According to this, when providing the protrusion part of another component, a low-cost sheet | seat member can be used as needed.

  Further, according to the first embodiment, the plurality of inner plate portions 15A to 15E of the inner box 15 are formed of integrally molded products Ic and Id in which bent portions such as an L-shaped portion 17 and a drainage receiving portion 18 are integrally formed. Since the inner plate portions 15C and 15D are included, a bent portion having a complicated shape can be formed at a time by an integrally molded product using a mold.

  In this case, the integrally molded product Ic (upper inner plate portion 15C) including the L-shaped portion 17 that is a bent portion constitutes the ceiling surface of the inner box 15, and the machine room 11b is provided on the back side of the L-shaped portion 17. The machine chamber 11 b can be formed by the L-shaped portion 17.

  Further, the upper inner plate portion 15C made of the integrally molded product Ic having the L-shaped portion 17 is connected to the left inner plate portion 15A and the right inner plate portion 15B which are the inner box side walls at the side edge portions thereof. Since the portion 15C1 is provided, a connecting member as a separate part is unnecessary, and the number of parts and the number of assembly steps can be reduced.

  Furthermore, between the upper inner plate portion 15C made of an integrally molded product Ic having the L-shaped portion 17 and the left inner plate portion 15A which is the inner box side wall, between the upper inner plate portion 15C and the right inner plate portion 15B. In between, the urethane foam 24 as a heat insulating material is filled, and the rib 15C2 for heat insulating material leakage preventing member arrangement is formed in the vicinity of the inner box side wall in the connecting portion 15C1, so the rib 15C2 and the left inner plate The soft tape 23 can be inserted as a heat insulating material leakage prevention member between the portion 15A, between the rib 15C2 and the right inner plate portion 15B (the rib 15C2 on the right inner plate portion 15B side is not shown), Accordingly, leakage at the time of filling the urethane foam 24 can be prevented.

  Further, in the first embodiment, the lower inner plate portion 15D, which is an inner plate portion made of an integrally molded product, constitutes the bottom surface of the inner box 15, and the bent portion is formed at the back of the lower inner plate portion 15D. Since the drainage receiving part 18 is formed, the drainage receiving part 18 having a complicated shape can be formed at a time.

  Moreover, according to 1st Embodiment, the shelf board support parts 40a, 40b, 40c which are protrusion parts, the guide rail attachment parts 41a, 41b, and the partition wall support parts 42a, 42b are provided in the integrally molded products Ia, Ib. . In the case of this integrally molded product, an olefin resin (polypropylene material or the like) having a slightly lower strength (lower than the ABS resin) is used in consideration of the low material cost. 46 can compensate.

Second Embodiment
21 to 25 show a second embodiment. In the second embodiment, the configurations of the left heat insulating wall 9 'and the right heat insulating wall 10' are different from those of the first and second embodiments. 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.
As shown in FIGS. 21 to 23, in the left heat insulating wall 9 ′, the left inner plate portion 15 A ′ has an upper plate portion 15 Aa and a lower plate portion 15 Ab which are inner plate portions with respect to one unit panel 16 A. It is divided into and.

  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 Ie by, for example, injection molding or vacuum molding. And this upper side board part 15Aa has integrally 40a, 40b, 40c as a protrusion part, and the connection part 25 'for sheet | seat members integrally like 1st Embodiment. 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 Sb, and includes the same fixture 26 as that of the first embodiment as a protruding portion that is a separate part from the sheet member Sb. Further, guide rail mounting tools 33 and 34 and partition wall support tools 35 and 36 are mounted on the lower plate portion 15Ab as protruding parts of separate parts.

  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.

  Of the guide rail fixtures 33, 34, the guide rail fixture 33 is located on both inner sides of the vegetable compartment 58, and the guide rail fixture 34 is located on both inner sides of the freezer compartment 61. Since both guide rail attachments 33 and 34 have the same configuration, the guide rail attachment 33 will be described. The guide rail mounting tool 33 has a structure in which a guide rail mounting part 33b is integrally protruded from a plate-like main body part 33a, and a screw as a fastening member engaging part is provided on the back surface of the guide rail mounting tool 33. A hole 33c is formed, and a countersunk counterbore 33d is formed at the opening periphery of the screw hole 33c.

  A screw insertion hole 31 (illustrated in FIG. 30) as a fastening member insertion hole is formed in a portion corresponding to the inner surfaces of the vegetable chamber 58 and the freezing chamber 61 in the lower plate portion 15Ab. 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 lower plate portion 15Ab and screwed into the screw hole 33c of the guide rail attachments 33 and 34. As a result, the guide rail mounting tools 33 and 34 are fixed to the inner surface of the left inner plate portion 15 </ b> A, so that the guide rail mounting tools 33 and 34 project from the inner surface of the inner box 15 in the vegetable compartment 58.

  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 portion of the screw insertion hole 31 of the lower plate portion 15Ab is deformed into a dish shape (inflates to the inside of the cabinet) until it hits the counterbore 33d. As a result, in the assembled state of the left heat insulating wall 9 shown in FIG. 30, the peripheral edge portion 31a of the screw insertion hole 31 is separated from the left unit panel 16A, and the flat head screw 32 is below the left inner plate portion 15A ′. It becomes a form which does not protrude toward the left unit panel 16A from the back surface of the side plate portion 15Ab.

  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.

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

  In the second embodiment, an inner plate portion made of an integrally molded product Ie in which the shelf plate support portions 40a, 40b, and 40c, which are protruding portions, are integrally formed with respect to one unit panel 16A. In this case, the upper plate portion. 15Aa and an inner plate portion made of a flat sheet member Sb, in this case, a lower plate portion 15Ab are provided adjacent to each other. The inner plate portion corresponding to another unit panel 16B has the same configuration.

  According to this, even if it is the left heat insulation wall 9 which is one unit heat insulation wall, the inner plate part is comprised of the inner plate part (upper plate part 15Aa) made of the integrally molded product Ie and the inner plate part made of the sheet member Sb. (Lower plate portion 15Ab) can be used as a partially integrated molded product and a sheet member for one unit heat insulation wall, and design variations increase.

  Further, in the second embodiment, the upper plate portion 15Aa, which is an inner plate portion made of an integrally molded product Ie integrally formed with the shelf plate support portions 40a, 40b, 40c, which are protruding portions, is provided on the inner surface of the refrigerator compartment 57. In other words, the lower plate portion 15Ab, which is an inner plate portion made of a flat sheet member Sb, constitutes the inner surface of the vegetable room 58, the small freezing room 59, the ice making room 60, and the freezing room 61. Since the upper plate portion 15Aa and the lower plate portion 15Ab constitute different storage chambers, the inner surface of the storage chamber (refrigeration chamber 57) seen by the user can be constituted by an integrally molded product Ie with a good appearance of the protruding portion. The other interior surface of the storage room, which is not often seen, can be constituted by a sheet member Sb to which a protruding part of another part (a protruding outline may be conspicuous than the protruding part of the integrally molded product) is attached. That is, an inexpensive sheet member can be used in the storage room that is difficult to be visually recognized by the user.

In the second embodiment, the boundary portion between the upper plate portion 15Aa made of the integrally molded product Ie and the lower plate portion 15Ab made of the sheet member Sb is a partition wall portion that partitions different storage chambers. The first partition wall 55 is present. According to this, the boundary portion between the upper plate portion 15Aa and the lower plate portion 15Ab can be hidden by the first partition wall 55.
Further, according to the second embodiment, the lower plate portion 15Ab made of the sheet member Sb serves as the inner surface of the storage room (vegetable room 58, small freezing room 59, ice making room 60, freezing room 61) provided with the drawer container. It is composed.

  That is, the storage room provided with the drawer container is difficult for the user's eyes to reach the inside of the storage room, and the vegetable room 58, the small freezer room 59, and the ice making room 60 as the storage room provided with these drawer containers. The configuration of the inner surface of the freezer compartment 61 with the lower plate portion 15Ab made of the sheet member Sb can effectively use the sheet member at a necessary place.

  In the second embodiment, the inner surface of the refrigerating chamber 57, which is a storage chamber provided with the rotary doors 3 and 4, is constituted by the upper plate portion 15Aa made of the integrally molded product Id. 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 molded product Ie formed by molding, the shelf support portions 40a, 40b, and 40c are smooth from the upper plate portion 15Aa. , It looks good and the impression on hygiene is also improved.

<Third Embodiment>
26 and 27 show a third embodiment. In this embodiment, the inner side of the inner box 15 (the lower plate portion 15Ab in the figure) is formed on the periphery of the main body portion 33a of the guide rail fixture 33 in the second embodiment. The point which formed the elastically deformable fin part 33e which inclines to the side) differs from 1st Embodiment. Although not shown, the guide rail attachment 34 is similarly formed with a fin portion 33e.

  The fin portion 33e is in close contact with the inner surface of the inner box 15 when the guide rail fixture 33 is attached. The gap between the inner surface of the inner box 15 and the guide rail attachment 33 can be hidden by the fin portion 33e. That is, when the countersunk screw 32 is screwed into the screw hole portion 33c of the guide rail attachment 33, the peripheral portion 31a of the screw insertion hole portion 31 of the lower plate portion 15Ab is deformed. May occur, and a gap may be generated between the left inner plate portion 15A and the guide rail attachment 33. However, according to the third embodiment, the gap can be hidden by the fin portion 33e described above.

<Fourth embodiment>
FIG. 28 to FIG. 29 show a fourth embodiment, which is different from the first embodiment in the following points. That is, in the first embodiment, the left outer plate portion 14A, the lower outer plate portion 14D, and the right outer plate portion 14B are divided. However, the left outer plate portion 14A, the lower outer plate portion 14D, and the right outer plate portion 14B. And the continuous outer plate portion 14Z. Reference numeral 16D denotes a unit panel disposed between the inner surface of the lower outer plate portion 14D and the lower inner plate portion 15D.

As shown in the fourth embodiment, the outer box 14 does not have to be divided entirely in each plate portion.
In the third embodiment described above (FIGS. 26 and 27), the guide rail attachment 33 is provided with a fin 33e, and the gap between the inner surface of the inner box 15 and the guide rail attachment 33 is set to the fin 33e. However, the gap may be made inconspicuous by making the guide rail attachment 33 itself transparent.

In addition, what is necessary is just to set it as the structure which comprises an inner box from the inner-plate part divided | segmented into several, and comprised at least one of this inner-plate part by the integrally molded product which formed the said protrusion part integrally.
Moreover, the unit heat insulation wall should just be at least two. For example, the left heat insulating wall 9 is independent, and the other heat insulating walls 10 to 13 are integrated (the outer plate portion is continuous and integrated, the inner plate portion is continuous and integrated, and the unit panel is integrated and integrated). It may be configured as.

  In addition, as the unit heat insulation wall, a unit panel is disposed between the inner plate portion and the outer plate portion, the inner plate portion and one surface of the unit panel are bonded, and the other surface of the unit panel and the outer plate portion are bonded. Alternatively, the inner plate portion and one surface of the unit panel may be bonded to each other, and a heat insulating material such as urethane foam may be interposed between the other surface of the unit panel and the outer plate portion.

Further, the outer box and the vacuum heat insulation panel may be divided into a plurality of inner plate portions and connected without dividing the outer box and the vacuum heat insulating panel.
As described above, the refrigerator of the present embodiment is a refrigerator including an outer box, an inner box, and a heat insulating box composed of a vacuum heat insulating panel disposed between the outer box and the inner box, The inner box is provided with a protruding portion that protrudes into the cabinet, the inner box is constituted by an inner plate portion divided into a plurality of pieces, and at least one of the inner plate portions is integrally formed with the protruding portion. Consists of molded products. According to this, the number of manufacturing steps can be reduced.

  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 various omissions, replacements, and changes can be made without departing from the scope of the invention. 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 insulation box, 3 and 4 are revolving doors, 5 to 8 are drawer-type doors, 9 is a left heat insulation wall (unit heat insulation wall), 10 is a right heat insulation wall (unit heat insulation wall), 11 is an upper heat insulating wall (unit heat insulating wall), 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, and 14A is a left outer plate. Part, 14B is a right outer plate part, 14C is an upper outer plate part, 14D is a lower outer plate part, 14E is a rear outer plate part, 15 is an inner box, 15A is a left inner plate part, 15B is a right inner plate part, 15C Is an upper inner plate portion, 15D is a lower inner plate portion, 15C1 is a connecting portion, 15C2 is a rib, 15E is a rear inner plate portion, Sa, Sb, Sc are sheet members, Ia, Ib, Ic, Id are integrally molded products, 16 is a vacuum insulation panel, 16A is a left unit panel, 16B is a right unit panel, 16C is an upper unit panel, 16D is a lower unit panel, and 16E is Unit panel, 17 is an L-shaped portion (bent portion), 18 is a drainage receiving portion (bent portion), 21 is a front end connecting member, 25 is a sheet member connecting portion, 26 is a fixture (a separate protruding portion), 32 is a countersunk screw (fastening member), 33 and 34 are guide rail fixtures (projecting parts of separate parts), 35 and 36 are partition wall supports (projecting parts of separate parts), and 37 is a back cover mounting tool (separate parts). ), 40a to 40c are shelf plate support portions (projection portions), 41a and 41b are guide rail mounting portions (projection portions), 42a and 42b are partition wall support portions (projection portions), and 15A 'is a left inner plate. , 25 ′ is a connecting member for sheet members, 25 ″ is a connecting plate for sheet members, 44 and 46 are reinforcing plates (reinforcing members), 55 is a first partition wall, 56 is a second partition wall, and 57 is Refrigerated room (storage room), 58 is vegetable room (storage room), 59 is small freezer room (storage) Room), 60 is an ice making room (storage room), and 61 is a freezing room (storage room).

Claims (11)

A heat insulation box composed of an outer box, an inner box provided with a shelf board support part, a guide rail mounting part or a partition wall support part, and a vacuum heat insulation panel arranged between these outer box and the inner box. A refrigerator equipped with,
The inner box includes a protruding portion that protrudes into the cabinet,
The inner box is composed of an inner plate portion divided into a plurality of parts,
The inner plate portion is constituted by a flat sheet member that does not form an integrally molded product and an integrally molded product in which the protruding portion is integrally formed ,
The outer box is constituted by a plurality of divided outer plate portions, and the inner box is also constituted by a plurality of divided inner plate portions in the same manner as the outer box, and at least of the plurality of inner plate portions. One is composed of an integrally molded product in which the protrusions are integrally formed, and the vacuum insulation panel is also composed of a plurality of unit panels divided in the same manner,
Arranging the divided unit panel between the divided outer plate portion and the inner plate portion to constitute a plurality of unit heat insulation walls,
The heat insulation box is configured by connecting these unit heat insulation walls,
For the one unit panel, an inner plate portion made of an integrally molded product in which the protruding portions are integrally formed, and an inner plate portion made of the flat sheet member are provided adjacent to each other,
A plurality of the protrusions are arranged in the height direction of the inner box,
At least one of the shelf board support part, the guide rail mounting part, or the partition wall support part is configured by the projecting part projecting into the warehouse of the inner box,
The refrigerator is characterized in that an inner plate portion made of an integrally molded product in which the protruding portions are integrally formed has a connecting portion connected to a unit heat insulating wall having the flat sheet member . The divided inner plate portion of the inner box includes an inner plate portion made of an integrally molded product in which the protruding portions are integrally formed, and an inner plate portion made of a flat sheet member provided with a protruding portion of another part. The refrigerator according to claim 1 , wherein An inner plate portion made of integrally molded article formed with the projecting portion integrally, and the inner plate portion made of a flat sheet member, according to claim 2, characterized in that it constitutes an inner surface of a different storage compartment refrigerator. There is a partition wall portion that separates the different storage chambers at a boundary portion between the inner plate portion made of an integrally molded product formed integrally with the protruding portion and the inner plate portion made of a flat sheet member. The refrigerator according to claim 3 . 5. The refrigerator according to claim 2, wherein the inner plate portion made of the flat sheet member constitutes an inner surface of a storage chamber provided with a drawer container. The refrigerator according to any one of claims 2 to 5 , wherein the inner plate portion made of the integrally molded product constitutes an inner surface of a storage chamber provided with a rotary door. The refrigerator according to claim 1 , wherein the plurality of inner plate portions of the inner box include an inner plate portion made of an integrally molded product in which a bent portion is integrally formed. The refrigerator according to claim 7 , wherein an inner plate portion made of an integrally molded product having the bent portion constitutes a ceiling surface of the inner box, and a machine room is provided on the back side of the bent portion. . The refrigerator according to claim 8 , wherein the inner plate portion formed of an integrally molded product having the bent portion has a connecting portion for connecting to the side wall of the inner box side wall. A heat insulating material is filled between the inner plate part made of an integrally molded product having the bent part and the inner box side wall, and a heat insulating material leakage preventing member is arranged in the vicinity of the inner box side wall in the connecting part. The refrigerator according to claim 9 , wherein a rib is formed. The inner plate portion made of an integrally molded product having the bent portion constitutes the bottom surface of the inner box, and a drainage receiving portion is formed as the bent portion at the back of the inner plate portion. The refrigerator according to claim 7 .

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