refrigerator

Abstract

To provide a refrigerator which can efficiently discharge gas from a space between an inner box and an outer box, and can properly charge a foaming heat insulation material.SOLUTION: A refrigerator 1 comprises: an outer box 2b; an inner box 2a; a foaming heat insulation material 8 charged in a space between the outer box 2b and the inner box 2a; and a bottom wall part 22 attached to the foamable heat insulation material 8 side of the inner box 2a, and functioning as a lid member for closing an opening part 15 which is formed at the inner box 2a. The refrigerator also has: the bottom wall part 22 as a partitioning part for partitioning the space into which the foaming heat insulation material 8 is charged and a space at a storage chamber side on a side closer to the outer box 2b than the inner box 2a; and a sidewall part 21 as a wall part for connecting the partitioning part and the inner box 2a side, and one of more penetration holes 25 penetrating the wall part in a form of connecting the space of the foaming heat insulation material 8 side and the space on the storage chamber side are formed at the wall part of the lid member 16.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] An embodiment of the present invention relates to a refrigerator. [Background technology]

[0002] Conventionally, refrigerators are known that have an operating unit provided in a storage compartment. Although such an operating unit requires storage space for electrical components, circuit boards, etc., the space between the inner box and the outer box is used as the storage space in order to prevent a decrease in the capacity of the storage compartment and to avoid impeding the insertion and removal of ingredients (for example, see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-56500 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the space between the inner box and the outer box is used as a storage space, a portion protruding from the inner box toward the outer box is formed between the inner box and the outer box. If a portion protruding toward the outer box is formed, the flow of gas such as foaming gas generated when filling the space between the inner box and the outer box with foam insulation material and air present between the inner box and the outer box may be obstructed, or gas may be trapped in the protruding portion, resulting in portions not being filled with foam insulation material.

[0005] Therefore, a refrigerator is provided that can efficiently exhaust gas from the space between the inner box and the outer box and can be appropriately filled with foam insulation material. [Means for solving the problem]

[0006] The refrigerator of one embodiment comprises an outer box, an inner box arranged at a predetermined distance inside the outer box, foam insulation material filled in the space between the outer box and the inner box, and a lid member attached to the foam insulation side of the inner box and closing an opening formed in the inner box, the lid member having a partition portion that separates the space filled with the foam insulation material from the space on the storage compartment side on the outer box side relative to the inner box, and a wall portion that connects between the partition portion and the inner box side, and the wall portion of the lid member has one or more through holes formed therein that penetrate the wall portion in a manner that connects the space on the foam insulation side and the space on the storage compartment side. [Brief description of the drawings]

[0007] [Figure 1] FIG. 1 is a diagram illustrating a configuration example of a refrigerator according to an embodiment. [Diagram 2] FIG. 2 is a schematic diagram showing an example of the configuration of a storage chamber; [Diagram 3] A schematic diagram showing an example of the inner box configuration. [Figure 4] FIG. 2 is a diagram showing a schematic configuration example of a lid member; [Diagram 5] FIG. 13 is a schematic diagram showing an example of a state in which a lid member is attached; [Figure 6] FIG. 4 is a diagram showing an example of the internal structure of a lid member; [Figure 7] Diagram 1 showing a schematic example of the filling mode of foam insulation [Figure 8] Diagram 2 showing a schematic example of the filling mode of foam insulation [Figure 9] FIG. 1 is a schematic diagram showing an example of a state in which foam insulation material is filled. [Figure 10] FIG. 13 is a diagram showing another example of the configuration of the lid member; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0008] Hereinafter, an embodiment will be described with reference to the drawings. As shown in Fig. 1, refrigerator 1 has a main body 2 and a plurality of storage compartments, such as a refrigerator compartment 3, a vegetable compartment 4, an ice making compartment 5 and a small freezer compartment 6 arranged side by side, and a large freezer compartment 7. Hereinafter, the top-bottom direction when refrigerator 1 is installed will be referred to as the up-down direction, the left-right direction when viewed from the front will be referred to as the left-right direction, and the direction perpendicular to the up-down direction and the left-right direction will be referred to as the front-rear direction.

[0009] As is well known, each storage compartment has an opening at the front, and the opening is opened and closed by a pivoting or drawer door. For example, the refrigerator compartment 3 is opened and closed by a left door 3a and a right door 3b arranged side by side. The vegetable compartment 4 is opened and closed by a drawer door 4a, the ice making compartment 5 is opened and closed by a drawer door 5a, the small freezer compartment 6 is opened and closed by a drawer door 6a, and the large freezer compartment 7 is opened and closed by a drawer door 7a.

[0010] The main body 2 is formed by an inner box 2a and an outer box 2b. The inner box 2a is formed in a box shape with an open front, and forms the wall surface of the storage chamber and a partition between the storage chambers. The outer box 2b is arranged outside the inner box 2a, is formed in a box shape with an open front, and is arranged with a predetermined distance between it and the inner box 2a. The space between the inner box 2a and the outer box 2b is filled with a foam insulation material 8 described later, and a vacuum insulation material 9 described later is arranged at a predetermined position, such as the side of the storage chamber. Hereinafter, the surface of the inner box 2a facing the outer box 2b is also referred to as the surface, and the surface of the inner box 2a facing the storage chamber is also referred to as the inner surface.

[0011] As shown in Fig. 2, the refrigerator 1 has, for example, shelves 11, a storage container 12, a water supply device 13, and the like arranged inside the refrigerator compartment 3. In relation to this embodiment, an operation unit 14 is provided on the wall of the refrigerator compartment 3. This operation unit 14 controls the operation of the refrigerator 1 and performs various settings, and although not shown, includes, for example, a display unit using a light source such as an LED, and an input unit such as a capacitive switch or a membrane switch. This operation unit 14 is installed by being attached from the storage compartment side. Note that, in Fig. 2, a door is not shown to simplify the explanation.

[0012] The operation unit 14 has a storage space (S) therein for storing electric components, circuit boards, etc. The operation unit 14 is arranged between the inner box 2a and the outer box 2b filled with the foam insulation material 8 so as to prevent the capacity of the storage chamber from decreasing and to avoid impeding the insertion and removal of ingredients. More specifically, the operation unit 14 is arranged in a state where the surface on the operating side is roughly flush with the wall surface of the storage chamber, or in a state where it protrudes slightly toward the storage chamber, with most of the storage space being located between the inner box 2a and the outer box 2b.

[0013] At this time, because it is difficult in manufacturing to provide a recess in the inner box 2a to accommodate the operating unit 14, in this embodiment, an opening 15 that leads to the storage chamber side is formed in the inner box 2a as shown in the open state in Fig. 3. Then, by providing a cover member 16 in a manner that closes the opening 15 as shown in the closed state, the space between the inner box 2a and the outer box 2b, which is filled with the foam insulation material 8, can be used as a storage space that opens to the storage chamber side. The position and size of the opening 15 can be appropriately set based on the size of the operating unit 14 and according to the position where the operating unit 14 is installed.

[0014] Lid member 16 is formed in a generally rectangular shape with chamfered corners as shown in Fig. 4. Note that the front view in Fig. 4 shows the state when lid member 16 is attached to inner box 2a and seen from the left side of refrigerator 1, the side view shows the state when lid member 16 is attached to inner box 2a and seen from the rear of refrigerator 1, and the top view shows the state when lid member 16 is attached to inner box 2a and seen from above refrigerator 1.

[0015] More specifically, the lid member 16 has a generally flat frame-shaped flange 20 formed larger than the opening 15 and attached to the surface of the inner box 2a at the outer periphery of the opening 15, a side wall 21 formed extending from the inner edge side of the flange 20, i.e., the opening 15 side to the outer box 2b side, surrounding the outer periphery of the opening 15, and a bottom wall 22 closing the end of the side wall 21 on the outer box 2b side and forming the bottom surface of the storage space (S). At this time, since the side wall 21 of the lid member 16 is arranged in a generally rectangular shape, the inside thereof is formed hollow.

[0016] That is, the lid member 16 is disposed in such a manner as to close the opening 15, thereby separating the space between the inner box 2a and the outer box 2b in which the foamed insulation material 8 is filled, from the space on the storage chamber side which is connected by the opening 15. The flange 20 of the lid member 16 corresponds to a base for attaching the lid member 16 to the inner box 2a. The bottom wall 22 of the lid member 16 is provided at a position spaced from the inner box 2a toward the outer box 2b, and corresponds to a partition that separates the space in which the foamed insulation material 8 is filled from the space on the storage chamber side. The side wall 21 of the lid member 16 corresponds to a wall that connects the partition and the inner box 2a side.

[0017] For the sake of explanation, the side wall portion 21 on the left side in FIG. 4 will be referred to as the first side wall portion 21A, the side wall portion 21 on the upper side in the figure will be referred to as the second side wall portion 21B, the side wall portion 21 on the right side in the figure will be referred to as the third side wall portion 21C, and the side wall portion 21 on the lower side in the figure will be referred to as the fourth side wall portion 21D. Furthermore, when providing an explanation common to each side wall portion 21, the letters A to D will not be added and they will simply be referred to as side wall portion 21.

[0018] As shown in Fig. 5, which is a cross-sectional view taken along line AA in Fig. 4, flange 20 of lid member 16 is airtightly attached to the surface of inner box 2a by a double-sided adhesive or the like. Side wall 21 is formed in a shape that is slightly inclined toward opening 15 as it moves toward outer box 2b. Note that Fig. 5 shows the cross section of lid member 16 in a filled-in state to make the drawing easier to see. In addition, inner box 2a is formed to be wider toward the front of refrigerator 1, so the right side in the drawing, which is the front of refrigerator 1, is drawn in a state of being inclined slightly downward.

[0019] In addition, the first side wall portion 21A, the second side wall portion 21B, and the third side wall portion 21C are formed with groove portions 23 as recessed structures recessed inward from the wall surfaces along the side wall portion 21. At the end of each groove portion 23 on the outer box 2b side, a return portion 24 as a protruding structure protruding outward from the groove portion 23 in a state roughly parallel to the flange portion 20 is formed along the side wall portion 21. At this time, the return portion 24 is formed in a state where it is connected to the surface of the groove portion 23 by a smooth curved surface. In addition, the return portion 24 provided in the groove portion 23 of the first side wall portion 21A is formed to be shorter than the length of the groove portion 23.

[0020] In this embodiment, the first side wall portion 21A is provided with three through holes 25 penetrating from the surface on the foamed insulation material 8 side to the hollow portion as shown in the side view of Fig. 4. The through holes 25 are formed in a wedge shape with a diameter gradually decreasing from the surface side to the back side as shown in Fig. 6, which is a cross-sectional view of the VI region in Fig. 4 taken along the line BB. The bottom through hole 25 in Fig. 6 is connected to an area surrounded by a reinforcing wall 26 for reinforcing the cover member 16, but the area surrounded by the reinforcing wall 26 is open on the rear side in the figure.

[0021] Therefore, gas between the inner box 2a and the outer box 2b can move through the through holes 25 and via the opening 15 of the inner box 2a to the storage chamber side. In this embodiment, the through holes 25 are concentrated on one end side of the first side wall portion 21A in consideration of ease of molding the lid member 16, but the number and arrangement of the through holes 25 are only an example. In other words, the through holes 25 are not limited to the configurations shown in Figures 4 and 6, and four or more through holes may be provided, and they may be distributed in the longitudinal direction of the first side wall portion 21A, for example.

[0022] 4, each side wall 21 of the cover member 16 has a curved surface at a portion connected to the bottom wall 22. However, the portion connected to the bottom wall 22 may be formed in a flat shape, or may be formed in a shape that combines flat and curved portions.

[0023] The bottom wall 22 is formed in a curved shape that is convex toward the outer box 2b side, i.e., toward the foamed insulation material 8 side, and has a circular recess 27 formed as a recess structure recessed inward from the front surface. However, although this recess 27 is recessed from the front surface, it is not connected to the back surface that is the storage chamber side.

[0024] In addition, in the present embodiment, the cover member 16 has an inlet 28 at the fourth side wall 21D for passing signal lines connecting with electric components. On both sides of the inlet 28, protective walls 29 are provided for reducing the pressure on the signal lines from the foaming pressure of the foamed insulation material 8. The inlet 28 is sealed with a sealant after the signal lines have been passed through. In addition, a vacuum insulation material 9 is attached to the outer box 2b, and a gap of about several millimeters is formed between the bottom wall 22 and the vacuum insulation material 9.

[0025] Next, the operation of the above-mentioned configuration will be described. As described above, by utilizing the space between the inner box 2a and the outer box 2b as storage space for the operating unit 14, it is believed that the risk of the capacity being reduced or the ability to insert and remove ingredients being hindered due to the operating unit 14 protruding into the storage compartment can be reduced.

[0026] However, there are some drawbacks to using the space between the inner box 2a and the outer box 2b as a storage space. Specifically, the foam insulation material 8 is filled between the inner box 2a and the outer box 2b by filling the concentrate from a filling port 31 formed on the back side of the inner box 2a with the front side facing down, as shown in Fig. 7 as a filling mode. Note that in Fig. 7, the filling tool and device are omitted for the sake of simplicity. Also, the front sides of the inner box 2a and the outer box 2b are closed by a front end flange 2a1 formed on the front end of the inner box 2a.

[0027] Now, since foaming gas is generated when the foam insulation material 8 foams, it is necessary to exhaust the foaming gas from the space between the inner box 2a and the outer box 2b in order to properly fill the foam insulation material 8. Also, since air is originally present between the inner box 2a and the outer box 2b, this air must also be exhausted. Hereinafter, the foaming gas and air that need to be exhausted when filling the foam insulation material 8 are collectively referred to as gas.

[0028] In this case, as shown in the side view in direction C in Figure 7, if there is a protruding part such as a lid member 16 between the inner box 2a and the outer box 2b, the flow of gas may be obstructed when filling with the foam insulation material 8, or gas may become trapped in the protruding part, resulting in some places where the foam insulation material 8 is not filled properly.

[0029] Therefore, in this embodiment, the lid member 16, which is disposed in a state protruding from the inner box 2a, has a through hole 25 formed in its side wall 21, which functions as a so-called gas vent hole. As is clear from Fig. 7, the lid member 16 has a very small gap between the bottom wall 22 and the vacuum insulation material 9, but the side wall 21 is generally open to the space between the inner box 2a and the outer box 2b. In other words, the side wall 21 of the lid member 16 is disposed in a direction that easily receives the flow of gas indicated by the arrow F.

[0030] In this embodiment, among the side walls 21 arranged to surround the opening 15, the through hole 25 is formed in the first side wall 21A which is upstream in the flow direction of the foamed insulation material 8 during filling. As shown in FIG. 8 as filling state 1 to filling state 4 in time series, the first side wall 21A is the side wall 21 which is not filled with the foamed insulation material 8 to the end when the lid member 16 is gradually covered with the foamed insulation material 8 during filling with the foamed insulation material 8. In other words, the through hole 25 is formed in the side wall 21 which can continue to be filled with the foamed insulation material 8 until it is covered with the foamed insulation material 8 in the lid member 16, in other words, the side wall 21 which can function as a gas vent hole to the end.

[0031] This allows gas to be efficiently and appropriately discharged from the space between the inner box 2a and the outer box 2b through the through-holes 25 when the foam insulation material 8 is filled. In addition to the through-holes 25, the inner box 2a is provided with a plurality of holes 32 connected to the storage chamber side. A sealing member (not shown) that only allows gas to pass through is attached to the surface of the storage chamber side of these holes 32 when filling, so that they function as gas vent holes. Therefore, even if the cover member 16 is covered with the foam insulation material 8 as shown in carpet state 4, gas can still be discharged.

[0032] In addition, since the side wall portion 21 is formed at an incline toward the opening side, when the foam insulation material 8 is filled from below the cover member 16, the foam insulation material 8 and gas can flow upward along the incline, reducing the risk of gas stagnation.

[0033] As shown in Fig. 9, the cover member 16 has a groove 23 formed in a side wall 21. In Fig. 9, for the sake of simplicity, the vacuum insulation material 9 and the like are omitted, and only the essential parts are shown.

[0034] In this case, as shown in the filled state, when the entire cover member 16 is covered with the foamed insulation material 8, the movement of the cover member 16 in the left-right and up-down directions in the figure is restricted by the foamed insulation material 8 filled in the groove portion 23. In other words, the groove portion 23 functions as a determining portion that determines the position of the cover member 16.

[0035] As shown in the cross section along line DD, the foam insulation material 8 is also filled in the recess 27 formed in the bottom wall 22 of the cover member 16. Therefore, this recess 27 also functions as a determining portion that determines the position of the cover member 16. As a result, the movement of the cover member 16 from the position that covers the opening 15 in the direction along the inner box 2a is restricted, and the cover member 16 is appropriately positioned at the position that covers the opening 15.

[0036] Also, as shown in the cross section taken along line EE, a return portion 24 is formed in groove portion 23. At this time, although lid member 16 is attached to inner box 2a at flange portion 20 with double-sided adhesive 30, there is a risk of lid member 16 moving away from inner box 2a when filling pressure or foaming pressure of foamed insulation material 8 is applied to flange portion 20. Therefore, even if a force is applied to the left in the figure, that is, in a direction away from inner box 2a, movement to the left in the figure is restricted by return portion 24. In other words, return portion 24 also functions as a determining portion that determines the position of lid member 16.

[0037] As a result, with the return portion 24 inserted into the foam insulation material 8, the movement of the lid member 16 in a direction away from the inner box 2a is restricted, and the lid member 16 is positioned in a state in which it properly blocks the opening 15. Note that the lid member 16 also has the groove portion 23 and the return portion 24 in the third side wall portion 21C that is on the lower side when filling, but because the side wall portion 21 is inclined and the return portion 24 is formed to have a smooth curved surface that connects to the surface of the groove portion 23, the foam insulation material 8 is filled in such a way that the air is pushed out along the inclination, reducing the risk of air stagnation below the lid member 16.

[0038] According to the refrigerator 1 described above, the following effects can be obtained. The refrigerator 1 of the embodiment comprises an outer box 2b, an inner box 2a, a foam insulation material 8 filled in the space between the outer box 2b and the inner box 2a, and a bottom wall portion 22 attached to the foam insulation material 8 side of the inner box 2a and serving as a lid member for closing an opening 15 formed in the inner box 2a. The lid member 16 has the bottom wall portion 22 serving as a partition separating the space filled with the foam insulation material 8 from the space on the storage compartment side on the outer box 2b side relative to the inner box 2a, and a side wall portion 21 serving as a wall connecting the partition portion and the inner box 2a side. One or more through holes 25 are formed in the wall portion of the lid member 16, penetrating the wall portion in a manner connecting the space on the foam insulation material 8 side and the space on the storage compartment side.

[0039] In this way, by providing a through hole 25 in the side wall portion 21 which is open to the space between the inner box 2a and the outer box 2b and which is easily adapted to receive gas flow, gas can be efficiently discharged from the space between the inner box 2a and the outer box 2b, and the foam insulation material 8 can be properly filled.

[0040] Furthermore, the through hole 25 is formed in the first side wall 21A, which is the side wall 21 that is upstream in the flow direction of the foamed insulation material 8 during filling, among the side wall 21 provided in a manner surrounding the opening 15. At this time, the side wall 21 that is upstream in the flow direction is considered to be the side wall 21 that is last to be covered by the foamed insulation material 8 when filling the foamed insulation material 8. Then, by providing the through hole 25 in the side wall 21, it is possible to continue discharging air through the lid member 16 until the lid member 16 is covered with the foamed insulation material 8.

[0041] In addition, the bottom wall portion 22 is formed in a curved shape that is convex toward the outer box 2b side. This makes it possible to realize a strong structure that can withstand the filling pressure and foaming pressure of the foam insulation material 8.

[0042] Furthermore, the cover member 16 has at least one of a protruding structure protruding toward the foamed insulation material 8 or a recessed structure recessed inward from the surface formed on the surface that contacts the foamed insulation material 8. In this embodiment, both are formed. As a result, the foamed insulation material 8 is filled into the groove portion 23, and the return portion 24 is inserted into the foamed insulation material 8, so that movement from the position that blocks the opening 15 in a direction along the surface of the inner box 2a or movement away from the inner box 2a is restricted, and the cover member 16 can be positioned in a state where the opening 15 is appropriately blocked.

[0043] In addition, the portion where the side wall portion 21 and the bottom wall portion 22 are connected is curved or flat. This reduces the risk that the side wall portion 21 will obstruct the filling of the foam insulation material 8 or the flow of gas, and reduces the risk that gas will stagnate or be insufficiently filled.

[0044] In addition, the side wall portion 21 is formed with the tip side inclined toward the opening 15. This makes it possible to encourage the filling of the foam insulation material 8 and the flow of gas along the inclination, reducing the risk of gas stagnation or the occurrence of insufficient filling.

[0045] In the embodiment, the first side wall portion 21A is provided with the through hole 25, but as shown in Fig. 10, the second side wall portion 21B, the third side wall portion 21C, or the fourth side wall portion 21D may be provided with the through hole 25A. In this case, the second side wall portion 21B, the third side wall portion 21C, or the fourth side wall portion 21D may be provided with the through hole 25A in one of them, or in two or more of them, or in all of them. This allows gas to be efficiently discharged from the space between the inner box 2a and the outer box 2b, and allows the foam insulation material 8 to be appropriately filled.

[0046] At this time, the through hole 25A can be formed in the side wall 21 provided in a manner surrounding the opening 15 at a position on the upstream side in the flow direction of the foamed insulation material 8 during filling. For example, in the second side wall 21B and the third side wall 21C shown in FIG. 10, the through hole 25A is formed on the upstream side during filling, that is, on the upper end side which is the upper side in the figure. This makes it possible to extend the period during which the through hole 25A formed in the second side wall 21B or the third side wall 21C functions as a gas vent hole when the foamed insulation material 8 is filled from the bottom in the figure. This can promote the discharge of gas from the space between the inner box 2a and the outer box 2b.

[0047] In other words, refrigerator 1 comprises an outer box 2b, an inner box 2a, foamed insulation material 8 filled in the space between outer box 2b and inner box 2a, and a bottom wall portion 22 attached to the foamed insulation material 8 side of inner box 2a and serving as a lid member for closing opening 15 formed in inner box 2a, and lid member 16 has bottom wall portion 22 serving as a partition separating the space filled with the foamed insulation material 8 from the space on the storage chamber side on the outer box 2b side relative to inner box 2a, and side wall portion 21 serving as a wall connecting the partition portion and the inner box 2a side, and one or more through holes 25 are formed in lid member 16 at a portion upstream in the flow direction of foamed insulation material 8 during filling, penetrating lid member 16 in a manner connecting the space on the foamed insulation material 8 side and the space on the storage chamber side.

[0048] In this case, one or more through holes 25 may be provided in an upstream portion of bottom wall 22, for example, in a range upstream of the center of bottom wall 22, in a range of about 1 / 3 of bottom wall 22 from the upstream side, or in a portion on the bottom wall 22 side of a portion where bottom wall 22 and side wall 21 are connected. Even with such a configuration, it is possible to obtain various effects similar to those of refrigerator 1 described above, such as efficient exhaust of gas from the space between inner box 2a and outer box 2b when filling with foamed insulation material 8. Also, cover member 16 may have a shape in which the outer edge side of the partition extends gently to the inner box 2a side, that is, the partition and the wall are integrated.

[0049] Although the embodiment shows an example of a configuration in which both the groove portion 23 and the return portion 24 are provided, a configuration in which either one of them is provided may be used. Also, a configuration in which the groove portion 23 is provided in one of the side wall portions 21 and the return portion 24 is provided in the other side wall portion 21 may be used.

[0050] In the embodiment, the side wall portion 21 is shaped to be inclined toward the opening 15, but the side wall portion 21 can be formed, for example, in a shape curved outward. For example, by making the side wall portion 21 located at the bottom when filling the foam insulation material 8 into a curved shape, the gas flows outward along the curved side wall portion 21, reducing the risk of the gas flow being obstructed or stagnated. In addition, it is possible to make the structure strong enough to withstand the pressure during foaming. Of course, the side wall portion 21 can also be formed into a curved shape while being inclined.

[0051] In the embodiment, a lid member that forms a storage space to accommodate the operating unit 14 is exemplified, but the configuration may be such that the lid member 16 is provided when forming a storage space to accommodate other parts, etc., instead of the operating unit 14.

[0052] In the embodiment, the flange portion 20 is illustrated as an example of the base portion, but the configuration of the base portion is not limited to this. For example, the side wall portion 21 may be formed thick, and the end surface on the inner box 2a side may be used as the base portion.

[0053] In the embodiment, the side wall 21 as the wall is provided on the outer periphery of the opening 15 so as to surround the opening 15, but the wall configuration is not limited thereto. For example, a part of the periphery of the opening 15 may be formed in a shape different from that of the wall. Also, the side wall 21 may be configured to be positioned inside the edge of the opening 15 shown in the open state of FIG. 3. That is, as long as the cover member 16 has at least a base portion that covers the edge of the opening 15, the position of the side wall 21 and the size of the bottom wall 22 can be set according to the size of the storage space (S).

[0054] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0055] In the drawings, 1 indicates a refrigerator, 2a indicates an inner box, 2b indicates an outer box, 3 indicates a refrigerator compartment (storage compartment), 4 indicates a vegetable compartment (storage compartment), 5 indicates an ice-making compartment (storage compartment), 6 indicates a small freezer compartment (storage compartment), 7 indicates a large freezer compartment (storage compartment), 8 indicates foam insulation material, 9 indicates a vacuum insulation material, 14 indicates an operating section, 15 indicates an opening, 16 indicates a cover member, 21, 21A, 21B, 21C, and 21D indicate side wall portions (wall portions), 22 indicates a bottom wall portion (partition portion), 23 indicates a groove portion (recess structure portion), 24 indicates a return portion (protruding structure portion), 25 and 25A indicate through holes, and 27 indicates a recess (recess structure portion).

Claims

1. Outer box and an inner box disposed inside the outer box at a predetermined interval; A foam insulation material filled in the space between the outer box and the inner box; a cover member attached to the foam insulation side of the inner box and closing an opening formed in the inner box; The cover member has a partition portion that separates the space filled with the foam insulation material from a space on the storage chamber side on the outer box side relative to the inner box, and a wall portion that connects the partition portion and the inner box side, One or more through holes are formed in the wall portion of the cover member, the through holes penetrating the wall portion in a manner connecting the space on the foam insulation material side and the space on the storage chamber side, A refrigerator in which the through hole is formed in the wall portion that is upstream in the flow direction of the foam insulation material during filling.

2. Outer box and an inner box disposed inside the outer box at a predetermined interval; A foam insulation material filled in the space between the outer box and the inner box; a cover member attached to the foam insulation side of the inner box and closing an opening formed in the inner box; The cover member has a partition portion that separates the space filled with the foam insulation material from a space on the storage chamber side on the outer box side relative to the inner box, and a wall portion that connects the partition portion and the inner box side, One or more through holes are formed in the wall portion of the cover member, the through holes penetrating the wall portion in a manner connecting the space on the foam insulation material side and the space on the storage chamber side, A refrigerator in which the through hole is formed in the wall portion at a position that is upstream in the flow direction of the foam insulation material during filling.

3. Outer box and an inner box disposed inside the outer box at a predetermined interval; A foam insulation material filled in the space between the outer box and the inner box; a cover member attached to the foam insulation side of the inner box and closing an opening formed in the inner box; The cover member has a partition portion that separates the space filled with the foam insulation material from a space on the storage chamber side on the outer box side relative to the inner box, and a wall portion that connects the partition portion and the inner box side, One or more through holes are formed in the lid member at a portion upstream in the flow direction of the foam insulation material during filling, the through holes penetrating the lid member in a manner connecting a space on the foam insulation material side and a space on the storage chamber side, A refrigerator in which the through hole is formed in the wall portion at a position that is upstream in the flow direction of the foam insulation material during filling.

4. The refrigerator according to any one of claims 1 to 3, wherein the partition portion is formed in a curved shape that is convex toward the outer box side.

5. 5. A refrigerator as claimed in any one of claims 1 to 4, wherein the cover member has at least one of a protruding structure protruding toward the foam insulation material or a recessed structure recessed inward on the surface that contacts the foam insulation material.

6. The refrigerator according to any one of claims 1 to 5, wherein a portion where the wall portion and the partition portion are connected is curved or flat.

7. The refrigerator according to any one of claims 1 to 6, wherein the wall portion is formed so that a tip side connected to the partition portion is inclined inwardly.

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