WO2020177771A1 - Refrigerator and method for manufacturing same - Google Patents

Abstract

In the refrigerator (10) of the present invention, in the heat insulation spaces (50) of the heat insulation box (11) in the left-right direction, vacuum heat insulation materials (17B) are pressed against inner liner side panels (16B) by means of heat insulation correction members (40) and spacers (30), so as to form foam heat insulation materials (17A) in the heat insulation spaces (50) in the state where the vacuum heat insulation materials (17B) and the inner liner side panels (16B) are in close contact with each other to prevent the presence of unfilled areas of the foam heat insulation materials (17A) between the vacuum heat insulation materials (17B) and outer box side panels (15B), and to prevent a poor appearance caused by the unfilled areas.

Description

Refrigerator and manufacturing method thereof Technical field

The present invention relates to a refrigerator and a manufacturing method thereof, in particular to the use of a vacuum heat insulation material as a heat insulation material, and the vacuum heat insulation material is fixed on the inner tank through a heat insulation correcting member, thereby preventing the occurrence of unfilled foam heat insulation materials Regional refrigerator and its manufacturing method.

Background technique

In an ordinary refrigerator, a storage room is formed inside a heat insulation box, and the front opening of the storage room is closed by a heat insulation door, so that the storage room can be opened and closed. The heat-insulating box body includes: an outer box made of steel plate; an inner liner made of a synthetic resin board arranged inside the outer box; and a heat insulating material filled between the outer box and the inner liner.

Polyurethane foam is generally used as a heat insulating material filled in the heat insulating box of a refrigerator. However, in order to cope with further energy saving of refrigerators, it is preferable to use heat insulating materials with higher heat insulating properties than foamed polyurethane.

Therefore, a vacuum heat insulating material is sometimes used as the heat insulating material built in the heat insulating box. Vacuum heat insulation material is obtained by vacuum packaging fibrous inorganic materials such as glass wool, and its heat insulation effect is more than ten times that of foamed polyurethane. With such a configuration, the storage compartment can be well insulated from the outside by the vacuum heat insulating material, and the energy required for the cooling operation of the refrigerator can be reduced.

12, the structure of the conventional refrigerator 100 using the vacuum insulation material is demonstrated. FIG. 12 is a cross-sectional view showing a conventional refrigerator 100.

As shown in FIG. 12, the refrigerator 100 includes an outer box 101 and an inner liner 102, and a storage compartment 107 is formed inside the inner liner 102. In addition, between the outer box 101 and the inner tank 102, a foam heat insulating material 103 and a vacuum heat insulating material 104 are arranged as heat insulating materials. The vacuum insulation material 104 is adhered to the inner surface of the outer box 101. In addition, on the inner surface of the outer box 101, a pipe 106 for circulating refrigerant is arranged. Thereby, a groove 105 is formed along the pipe 106 on the outer surface of the vacuum heat insulating material 104.

Patent Document 1: JP Patent No. 4111096

[The problem to be solved by the invention]

However, the refrigerator 100 shown in FIG. 12 has room for improvement from the viewpoint of the heat insulation of the refrigerator 100 and the manufacturing method of the refrigerator 100.

In the refrigerator 100, the vacuum heat insulating material 104 is arranged on the outer box 101 side. In addition, at the four corners of the outer box 101, there is an area where the vacuum heat insulating material 104 is not arranged, and there is a problem that heat enters the storage room 107 from this area, and it is difficult to fully exert the heat insulating effect.

In addition, in the manufacturing process of the refrigerator 100, it is necessary to use an adhesive to adhere the vacuum heat insulating material 104 to the inner surface of the outer box 101, but performing the bonding process causes a problem that the manufacturing cost of the refrigerator 100 increases.

In addition, since the pipe 106 for circulating the refrigerant is arranged on the inner surface of the outer box 101, it is necessary to form a groove 105 for arranging the pipe 106 in the vacuum heat insulating material 104 to improve the heat dissipation of the pipe 106. Therefore, the groove 105 needs to be formed on the vacuum heat insulating material 104 according to the piping path of the pipe 106, and there is a problem that the manufacturing cost of the refrigerator 100 increases.

In order to solve the above-mentioned problem, a structure in which the vacuum heat insulating material 104 is arranged along the inner container 102 is considered. If the bonding step is omitted from the viewpoint of the above-mentioned manufacturing cost, there will be gaps between the vacuum heat insulating material 104 and the inner container 102 in the bending regions of the both ends of the vacuum heat insulating material 104 in the longitudinal direction. In addition, the foamed heat insulating material 103 may penetrate into the above-mentioned gap and rise between the vacuum heat insulating material 104 and the inner tank 102, so that the foamed heat insulating material appears between the vacuum heat insulating material 104 and the outer box 101. The unfilled area 103 causes the appearance of the outer box 101 to be poor due to the unfilled area, resulting in a decrease in yield.

Summary of the invention

The present invention was developed in view of the above situation, and it provides a refrigerator and a manufacturing method thereof, which uses a vacuum heat insulation material as a heat insulation material, and fixes the vacuum heat insulation material to the inner container through a heat insulation correcting member to prevent hair from occurring. The unfilled area of foam insulation.

[Solution to solve the problem]

The refrigerator of the present invention includes: a heat-insulating box in which a storage room is formed; a refrigeration cycle for cooling the air blown into the storage room; and a refrigerant pipe for circulating the refrigerant of the refrigeration cycle; The heat insulation box includes: an outer box, which forms the outer surface of the heat insulation box; an inner tank, which is arranged inside the outer box; and a heat insulation material, which is arranged between the outer box and the In the insulation space between the inner tanks; the insulation material is arranged at least in the insulation space on both sides of the horizontal width direction of the insulation box, and includes a vacuum insulation material and a foam insulation A thermal material, the longitudinal direction of the vacuum heat insulating material is along the height direction of the heat insulating box, and the foam heat insulating material is in the heat insulating space including the arrangement area of the vacuum heat insulating material Foam filling; On one end of the vacuum insulation material located on the front side of the depth direction of the insulation box, a plurality of spacers are installed, at least a part of which is arranged in the outer box and the vacuum insulation Between the thermal materials, on the other end side of the vacuum heat insulating material located on the rear side in the depth direction of the heat insulating box, a plurality of heat insulating correcting members are arranged, and the heat insulating correcting members are arranged at The length direction between the outer box and the vacuum insulation material is along the depth direction of the insulation box.

In addition, in the refrigerator of the present invention, the refrigerant pipe is arranged at least in the heat insulation space on both sides of the lateral width direction of the heat insulation box, and the refrigerant pipe is fixed to the outer box, The heat-insulating correction member is formed of an elastic member and has a chamfered notch at its longitudinal end, and the heat-insulating correction member has at least two or more in the longitudinal direction. The refrigerant pipe is fixed in the heat insulation space in a state in which the refrigerant pipe is inserted, and the cutout portion is located on the refrigerant pipe side.

In addition, in the refrigerator of the present invention, the vacuum heat insulating material is arranged near the top surface of the inner liner in the height direction of the heat insulating box, and the heat insulating correcting member is used to connect the inner liner The vacuum heat-insulating material near the top surface is fixed in the heat-insulating space in a state in which it is pressed toward the liner side.

Furthermore, in the refrigerator of the present invention, the heat insulating correcting member is formed of a foamed resin material.

The manufacturing method of the refrigerator of the present invention includes the following steps: preparing an outer box constituting a heat-insulating box, an inner liner arranged inside the outer box, and a heat-insulating space arranged between the outer box and the inner liner The vacuum heat-insulating material inside, the spacer and the heat-insulating correcting member for fixing the vacuum heat-insulating material in the space for heat insulation, and the longitudinal direction of the vacuum heat-insulating material is along the heat-insulating The height direction of the box; the inner container is arranged inside the outer box, and the spacer is installed on the vacuum insulation material on the front side of the depth direction of the heat insulation box, at least to the The vacuum heat insulation material is inserted into the heat insulation space on both sides of the lateral width direction of the heat insulation box; the vacuum heat insulation material is arranged in the heat insulation space The thermal correction member is inserted in such a manner that its longitudinal direction is along the depth direction of the heat insulation box, and the vacuum heat insulation material is pressed into at least the heat insulation box from the rear side in the depth direction of the heat insulation box. The center of the inner box; inject a liquid foaming material into the heat insulation space and foam it, thereby forming a foam heat insulation in the heat insulation space including the area where the vacuum heat insulation material is arranged material.

[Effects of the invention]

In the refrigerator of the present invention, the heat-insulating box includes: an outer box, which forms the outer surface of the heat-insulating box; an inner box, which is arranged inside the outer box; and an insulating material, which is arranged in the partition between the outer box and the inner box. In the hot space. The heat-insulating material is arranged at least in the heat-insulating space on both sides of the widthwise direction of the heat-insulating box, and includes a vacuum heat-insulating material and a foam heat-insulating material, and the length of the vacuum heat-insulating material is along the heat-insulating box In the height direction of the body, the foamed heat insulating material is foamed and filled in the heat insulating space including the arrangement area of the vacuum heat insulating material. In addition, in the depth direction of the heat insulation box, a spacer is installed on the front side of the vacuum heat insulation material, and at least a part of the spacer is arranged between the outer box and the vacuum heat insulation material, behind the vacuum heat insulation material. On the other side, a heat-insulating correction member is arranged, the heat-insulating correction member is arranged between the outer box and the vacuum heat insulating material, and the longitudinal direction thereof is along the depth direction of the heat insulating box. With this structure, in the above-mentioned heat-insulating space, the vacuum heat-insulating material is pressed to the inner liner side by the heat-insulating corrective member and the spacer to be firmly fixed, so that there is no appearance between the vacuum heat-insulating material and the outer box. Unfilled areas of foam insulation. As a result, it is possible to prevent the refrigerator from being discarded due to poor appearance caused by the unfilled area.

In addition, in the refrigerator of the present invention, refrigerant pipes fixed to the outer box are arranged in the space for heat insulation on both sides in the lateral width direction of the heat insulation box. The heat-insulating correction member is formed of an elastic member, and has a chamfered notch at its longitudinal end. In addition, the heat-insulating correcting member is fixed to the heat-insulating space in a state where at least two refrigerant pipes are inserted in the longitudinal direction, and the cut-out portion is located on the refrigerant pipe side. With this structure, the vacuum heat insulating material is pressed toward the liner side by the heat insulating correcting member, and is in a state of being in close contact with the liner. Furthermore, the heat-insulating correction member is inserted into the heat-insulating space using the cut surface, so that workability is greatly improved.

In addition, in the refrigerator of the present invention, the vacuum heat insulating material is arranged near the top surface of the inner container in the height direction of the heat insulating box, and the heat insulating correcting member is used to press the vacuum heat insulating material near the top surface of the inner container. It is fixed in the space for heat insulation while facing the liner side. With this structure, although the longitudinal ends of the vacuum heat insulating material may have curved shapes, the heat insulating correcting member corrects the curved shape of the vacuum heat insulating material and arranges it in the heat insulating space. , Which can prevent the appearance of unfilled areas of foam insulation.

In addition, in the refrigerator of the present invention, the heat insulating correcting member is formed of a foamed resin material. With this structure, even if the heat-insulating correction member is arranged in a narrow area such as a heat-insulating space, the workability can be improved, and the vacuum heat-insulating material can be firmly fixed to the inner liner side.

The manufacturing method of the refrigerator of the present invention includes the following steps: preparing an outer box constituting a heat-insulating box, an inner liner arranged inside the outer box, a vacuum heat insulating material, and a partition for fixing the vacuum heat insulating material in the heat insulating space The vacuum insulation material is arranged in the space for heat insulation between the outer box and the inner liner, and the length direction of the vacuum insulation material is along the height direction of the insulated box body; the inner liner is arranged inside the outer box, After installing spacers on the vacuum insulation material on the front side in the depth direction of the insulation box, insert the vacuum insulation material into the insulation space at least on both sides of the width direction of the insulation box; In the heat insulation space of the vacuum heat insulation material, insert the heat insulation correcting member so that its length direction is along the depth direction of the heat insulation box, and from the back side of the depth direction of the heat insulation box, the vacuum The heat-insulating material is pressed into at least the center of the inner box; the liquid foaming material is injected into the heat-insulating space and foamed, thereby forming foamed heat-insulating in the heat-insulating space including the area where the vacuum heat-insulating material is arranged material. According to this manufacturing method, in the space for heat insulation, a foamed heat insulation material can be formed in a state where the heat insulation correction member and the spacer press the vacuum heat insulation material to the liner side and are firmly fixed. In addition, it prevents the formation of foam insulation between the vacuum insulation material and the inner tank, and prevents the unfilled area of the foam insulation material between the vacuum insulation material and the outer box, thereby preventing the appearance of the above unfilled area The refrigerator was discarded due to defects.

Description of the drawings

Fig. 1 is a schematic diagram of a refrigerator according to an embodiment of the present invention, Fig. 1A is a perspective view of the refrigerator viewed from the front, and Fig. 1B is a cross-sectional view of the refrigerator;

2 is a schematic diagram of a refrigerator according to an embodiment of the present invention, FIG. 2A is a perspective view of the outer box viewed from the front, and FIG. 2B is a perspective view of the inner container viewed from the front;

Fig. 3 is a perspective view for explaining the heat insulating corrective member according to the embodiment of the present invention;

4 is a diagram showing a spacer according to an embodiment of the present invention, FIG. 4A is a perspective view showing the spacer, FIG. 4B is a cross-sectional view showing the structure of assembling the spacer to the vacuum insulation material, and FIG. 4C is a A perspective view of the structure of the spacer assembled on the vacuum insulation material;

Fig. 5 is a schematic diagram of a refrigerator according to an embodiment of the present invention, Fig. 5A is a rear view of the heat insulating correcting member viewed from the rear, and Fig. 5B is a cross-sectional view of the refrigerator;

6 is a schematic diagram of a refrigerator according to an embodiment of the present invention, FIG. 6A is a cross-sectional view of the refrigerator, and FIG. 6B is a cross-sectional view of the refrigerator;

7 is a schematic diagram of a refrigerator according to an embodiment of the present invention, FIG. 7A is a cross-sectional view of the refrigerator, and FIG. 7B is a cross-sectional view of the refrigerator;

Fig. 8 is a perspective view for explaining a method of manufacturing a refrigerator according to an embodiment of the present invention;

9 is a schematic diagram of a method of manufacturing a refrigerator according to an embodiment of the present invention, and FIGS. 9A to 9C are cross-sectional views of the refrigerator;

10 is a cross-sectional view for explaining the method of manufacturing the refrigerator according to the embodiment of the present invention;

11 is a diagram of a method of manufacturing a refrigerator according to an embodiment of the present invention, and FIGS. 11A to 11C are cross-sectional views of the refrigerator;

Fig. 12 is a cross-sectional view for explaining a conventional refrigerator.

Label description:

10. Refrigerator; 11. Heat insulation box; 12. Refrigerator room; 13. Freezer room; 15. Outer box; 15A. Back panel of outer box; 15B. Side panel of outer box; 15C. Top panel of outer box; 16. Inside Liner; 16A, the back panel of the liner; 16B, the side panel of the liner; 16C, the top panel of the liner; 16D, the bottom panel of the liner; 17, heat insulation material; 17A, foam heat insulation material; 17B, vacuum heat insulation material 18, refrigerant pipe; 30, spacer; 40, heat-insulating corrective member; 41, 42, end face; 43, cut surface; 50, space for heat insulation; 61, 62, injection hole; 63, 64, liquid foaming material

detailed description

Hereinafter, the refrigerator 10 of this embodiment is demonstrated in detail based on drawing. In addition, in the following description, the up-down direction indicates the height direction of the refrigerator 10, the left-right direction indicates the lateral width direction of the refrigerator 10 viewed from the front, and the front-rear direction indicates the depth direction of the refrigerator 10. In addition, when describing the present embodiment, in principle, the same symbols are used for the same components, and repeated descriptions are omitted.

With reference to Fig. 1, the schematic configuration of the refrigerator 10 of the present embodiment will be described. Fig. 1A is a perspective view of the refrigerator 10 of the present embodiment viewed from the front. FIG. 1B is a side cross-sectional view of the refrigerator 10 of this embodiment. In addition, in FIG. 1B, the flow of cold air is indicated by arrows.

As shown in FIG. 1A and FIG. 1B, in the refrigerator 10, a refrigerating compartment 12 and a freezing compartment 13 which are storage compartments are formed inside the heat insulation box 11. The front opening of the refrigerating compartment 12 is closed by an insulating door 34 so as to be able to be opened and closed, and the front opening of the freezing compartment 13 is closed by an insulating door 35 so as to be able to be opened and closed. The heat-insulating doors 34 and 35 are revolving doors, and the right-side end portions thereof are pivotally supported by the heat-insulating box 11 to be rotatable. In addition, the heat-insulating doors 34 and 35 may also be sliding doors.

As shown in FIG. 1B, behind the freezing chamber 13, a cooling chamber 27 is partitioned and formed, and an evaporator 26 is arranged in the cooling chamber 27. In addition, behind the lowermost part of the heat-insulating box 11, a machine room 14 is partitioned and formed, and a compressor 29 is arranged in the machine room 14. The evaporator 26 and the compressor 29 are connected to the expansion mechanism and the condenser via the refrigerant pipe 18 (refer to FIG. 2A), thereby forming a vapor compression refrigeration cycle. In addition, below the evaporator 26, a defrost heater 20 is provided for melting the frost adhered to the evaporator 26.

A blower 28 is arranged on the upper part of the cooling chamber 27, and the cold air in the cooling chamber 27 cooled by the evaporator 26 is blown to the refrigerating chamber 12 and the freezing chamber 13 via the blower 28. A damper 19 is inserted in the air supply air passage of the refrigerating compartment 12. Here, the control device detects the indoor temperature of the refrigerating compartment 12 with a sensor, and controls the opening and closing of the damper 19. Then, the flow rate of the cold air in the refrigerating compartment 12 is adjusted to keep the indoor temperature of the refrigerating compartment 12 constant.

Through the above control of the control device, the refrigerating compartment 12 is cooled to the refrigerating temperature zone, and the freezing compartment 13 is cooled to the freezing temperature zone. In addition, the cold air that has cooled the refrigerating compartment 12 and the freezing compartment 13 is returned to the cooling compartment 27 via the return air passage.

As shown in the figure, the heat-insulating box body 11 mainly includes: an outer box 15 made of steel plate to form the appearance of the refrigerator 10; an inner box 16 made of a synthetic resin plate in a box shape and formed on the inner side of the outer box 15; And the heat insulating material 17 is arranged in the heat insulating space 50 between the outer box 15 and the inner liner 16.

As the heat insulating material 17, a foam heat insulating material 17A and a vacuum heat insulating material 17B are used. For the foamed heat insulating material 17A, foamed polyurethane is used, for example. As the vacuum heat insulating material 17B, for example, a material obtained by putting a fiber assembly such as glass in a bag and evacuating the inside of the bag is used.

With reference to FIG. 2, the structure of the outer box 15 and the inner liner 16 of this embodiment is demonstrated. FIG. 2A is a perspective view of the outer box 15 of the present embodiment viewed from the lower front side. FIG. 2B is a perspective view of the inner liner 16 of the present embodiment viewed from the lower front side. In addition, when describing the outer box 15, FIG. 6A will be appropriately referred to.

As shown in FIG. 2A, the outer box 15 is formed by bending a thin steel plate having a thickness of about 0.5 mm. And, the outer box 15 mainly includes: the outer box back panel 15A (refer to FIG. 6A); the outer box side panel 15B, which is formed forward from the left and right ends of the outer box back panel 15A; and the outer box top panel 15C, from the outer box The upper end of the back panel 15A is formed forward.

The outer box side panel 15B and the outer box top panel 15C are integrally formed by bending a steel plate into a "U" shape. In addition, on the inner surfaces of the outer box side panel 15B and the outer box top panel 15C, a refrigerant pipe 18 is adhered through an aluminum tape 32, and the refrigerant pipe 18 is used to circulate refrigerant used in a vapor compression refrigeration cycle.

As shown in FIG. 2B, the inner container 16 is a molded body made of synthetic resin vacuum-molded into a predetermined shape. The liner 16 mainly includes: the liner back panel 16A; the liner side panel 16B, which is formed forward from the left and right ends of the liner back panel 16A; the liner top panel 16C, which extends from the upper end of the liner back panel 16A Formed in the front; and the inner tank bottom panel 16D, formed forward from the lower end of the inner tank back panel 16A. In addition, a heat-insulating partition wall 33 is formed in the middle part of the inner liner back panel 16A in the up-and-down direction, and the heat-insulating partition wall 33 separates the refrigerating compartment 12 and the freezing compartment 13.

The thickness of the resin constituting the liner 16 is preferably 0.5 mm or more and 2.0 mm or less, and more preferably 0.7 mm or more and 1.5 mm or less. By setting the thickness of the liner 16 within the above range, the strength of the liner 16 can be sufficiently ensured, and the deformation of the liner 16 can be prevented in the process of filling the foamed heat insulating material 17A (refer to FIG. 1B) during the manufacturing process.

With reference to FIG. 3, the heat insulating correcting member 40 of this embodiment is demonstrated. FIG. 3 is a perspective view showing the adiabatic corrective member 40 of the present embodiment. In addition, when describing the heat-insulating correction member 40, FIG. 6A will be appropriately referred to.

As shown in FIG. 3, the heat insulating correcting member 40 has a substantially rectangular parallelepiped shape. It is preferable that the length L1 of the longitudinal direction of the heat insulating correction member 40 is 250 mm or more and 350 mm or less. In addition, the length of the heat-insulating correction member 40 in the depth direction of the heat-insulating box 11 (refer to FIG. 1B) is preferably at least half of the inner liner 16 (refer to FIG. 2B), and more preferably the length in the above-mentioned depth direction. About two-thirds of the inner liner 16. On the other hand, it is preferable that the length L2 of the short side direction of the heat insulating correction member 40 is about 50 mm. In addition, on both end surfaces 41 and 42 in the longitudinal direction of the adiabatic correcting member 40, a cut surface 43 processed by a C surface is formed, respectively.

In addition, as shown in FIG. 6A, the heat insulating correcting member 40 is arranged in the heat insulating space 50 between the vacuum heat insulating material 17B and the outer box side panel 15B. The heat-insulating correcting member 40 has a thickness T2 of about 25 mm. The vacuum heat-insulating material 17B is fixed while pressing the vacuum heat-insulating material 17B against the liner side panel 16B, and the curved shape of the vacuum heat-insulating material 17B is corrected. In addition, the heat-insulating correction member 40 is an elastic member, and is formed of, for example, a foamed resin material such as foamed polyethylene, polyethylene resin, or polyethylene foam, even if the heat-insulating correction member 40 is arranged in the above-mentioned heat-insulating space 50, The heat insulation efficiency of the refrigerator 10 is not reduced. In addition, the adiabatic correcting member 40 is compressed and deformed along the shape of the refrigerant pipe 18 at a portion in contact with the refrigerant pipe 18. In addition, in the arrangement area of the refrigerant pipe 18, it is possible to prevent irregularities on the design surface of the outer box 15 from causing appearance defects.

In addition, as shown in the figure, when describing the heat-insulating correction member 40, the cut surface 43 is formed on both end surfaces 41 and 42, and the cut surface 43 is formed at a diagonal position in the longitudinal direction, but it is not necessarily limited to this structure. For example, the cut surface 43 may be formed on any one of the end surfaces 41 and 42 of the heat-insulating correction member 40.

With reference to FIG. 4, the spacer 30 of this embodiment is demonstrated. FIG. 4A is a perspective view showing the spacer 30 of this embodiment. 4B is a cross-sectional view showing a state where the spacer 30 is attached to the vacuum heat insulating material 17B of the present embodiment. FIG. 4C is a perspective view showing the overall configuration of a state where the spacer 30 is attached to the vacuum heat insulating material 17B of the present embodiment. In addition, when describing the spacer 30, FIG. 7A will be appropriately referred to.

As shown in FIG. 4A, the spacer 30 has a substantially rectangular parallelepiped shape in which each corner is chamfered. When the spacer 30 is viewed from the front of the drawing of FIG. 4A, the spacer 30 has a cross-sectional shape in which the upper left side of the drawing is partially cut away. The spacer 30 mainly includes: a first adhesive surface 30A, which is a flat surface facing the left side of the drawing; and a second adhesive surface 30B, which is perpendicular to the first adhesive surface 30A and faces the upper side of the drawing Flat surface. In addition, the height L3 of the spacer 30 is preferably 10 mm or more and less than 50 mm.

The spacer 30 is formed of a foamed resin material such as foamed polyethylene. When a foamed resin material is used as the spacer 30, as shown in FIG. 7A, when the spacer 30 is inserted into the heat insulating space 50, the spacer 30 is compressed and deformed appropriately. In addition, the repulsive force generated by the spacer 30 is used to press the vacuum heat insulating material 17B against the liner side panel 16B and firmly fix it at a desired position.

As shown in FIG. 4B, the spacer 30 is installed at the end of the vacuum insulation material 17B on the lower side of the drawing. The first adhesive surface 30A of the spacer 30 is adhered to the side surface near the bottom surface of the vacuum heat insulating material 17B on the right side of the drawing. On the other hand, the second adhesive surface 30B of the spacer 30 is adhered to the bottom surface of the vacuum heat insulating material 17B on the lower side of the drawing. In addition, an adhesive tape or an adhesive is used to adhere the vacuum heat insulating material 17B and the spacer 30.

As shown in FIG. 4C, the vacuum heat insulating material 17B has a substantially rectangular shape that is long in the vertical direction of the drawing, and a plurality of spacers 30 are installed on the side of the front of the drawing. In this embodiment, the two spacers 30 are attached near the center part and the lower end part of the said side of the longitudinal direction of the vacuum heat insulating material 17B. In addition, by mounting a plurality of spacers 30 on the vacuum heat insulating material 17B, the vacuum heat insulating material 17B can be more stably positioned and assembled to the heat insulating box 11.

5, the structure of the space 50 for heat insulation between the outer box 15 and the inner liner 16 of the refrigerator 10 is demonstrated. FIG. 5A is a rear view of the vacuum heat insulating material 17B of this embodiment when viewed from the back side of the refrigerator 10. FIG. 5B is a cross-sectional view of the refrigerator 10 of the present embodiment, and shows a cross section cut along the vertical direction of the refrigerator 10 at a middle portion in the depth direction of the refrigerator 10.

In FIG. 5A, three patterns of the shape of the vacuum heat insulating material 17B are illustrated. When viewed from the lateral side of the refrigerator 10, the length of the vacuum heat insulating material 17B arranged along the vertical direction of the refrigerator 10 is substantially the same as the length of the height direction of the inner container 16. In addition, the thickness T1 of the vacuum heat insulating material 17B is in the range of 15 mm±1 mm. In addition, as shown in the middle of FIG. 5A, the shape of the vacuum heat insulating material 17B is preferably a straight line in the longitudinal direction of the vacuum heat insulating material 17B, but as shown on both sides of FIG. 5A, there is also a length in the market. The two ends of the direction are in the vacuum heat insulating material 17B bent in the left-right direction of the drawing.

As shown in FIG. 5B, a refrigerant pipe 18 is fixed to the inner surface of the outer box 15. In addition, in the heat insulation space 50 on the left and right sides of the refrigerator 10, the vacuum heat insulating material 17B is arranged on the side of the refrigerating compartment 12 so as to be in substantially close contact with the inner container side panel 16B of the inner container 16. On the other hand, on the side of the freezer compartment 13, the vacuum heat insulating material 17B is arranged so as to be in substantially close contact with the rail 49 or its reinforcing plate for guiding the storage container. In addition, in the region where the rail 49 is not formed, the foamed heat insulating material 17A is filled between the inner liner side panel 16B and the vacuum heat insulating material 17B. Similarly, the foamed heat insulating material 17A is also filled in the heat insulating partition wall 33 for separating the refrigerating compartment 12 and the freezing compartment 13.

Here, as shown in FIG. 5A, a vacuum heat insulating material 17B in which both ends in the longitudinal direction are bent in the left-right direction of the drawing is also circulating in the market. In addition, when the step of adhering the vacuum heat insulating material 17B to the liner side panel 16B is included, the curved vacuum heat insulating material 17B can also be used, but the adhesion step including the vacuum heat insulating material 17B increases the manufacturing cost.

Therefore, in the present embodiment, in the heat insulation space 50 on the left and right sides of the refrigerator 10 in the lateral width direction, two heat insulating correcting members 40 and two spacers 30 are arranged together with the vacuum heat insulating material 17B. . In addition, omitting the process of attaching the vacuum heat insulating material 17B can reduce the manufacturing cost, and by correcting the curved shape of the vacuum heat insulating material 17B, the vacuum heat insulating material 17B and the inner liner side panel 16B are in close contact.

Specifically, the heat insulating correcting member 40 is respectively arranged from the back side of the refrigerator 10 at a position slightly below the inner container top panel 16C of the inner container 16. In addition, the heat-insulating correction member 40 is also arranged in the upper position of the freezer compartment 13 from the back side of the refrigerator 10, respectively. On the other hand, the spacers 30 are respectively arranged from the front side of the refrigerator 10 at a position slightly above the inner container bottom panel 16D of the inner container 16. In addition, the spacer 30 is also arranged in the middle position of the refrigerator compartment 12 from the front side of the refrigerator 10, respectively. That is, in the up-down direction of the refrigerator 10, the heat insulating correction member 40 and the spacer 30 are alternately arrange|positioned at a desired interval, and the vacuum heat insulating material 17B and the inner liner side panel 16B are in close contact.

6, the cross-sectional structure of the refrigerator 10 of this embodiment will be described. 6A is a cross-sectional view of the refrigerator 10 according to the present embodiment, and shows a cross section cut along the depth direction of the refrigerator 10 in the arrangement area of the heat insulating correcting member 40. FIG. 6B is an enlarged cross-sectional view of the area of the circle 51 shown in FIG. 6A.

As shown in FIG. 6A, first, on the left and right sides of the refrigerator 10, the heat insulating correcting member 40 and the vacuum heat insulating material 17B are arranged in the heat insulating space 50 between the liner side panel 16B and the outer box side panel 15B. Then, in the depth direction of the refrigerator 10, the vacuum heat insulating material 17B continues from the vicinity of the front end of the liner side panel 16B to the vicinity of the rear end of the liner side panel 16B, and is substantially in close contact with the liner side panel 16B .

On the other hand, the heat-insulating correcting member 40 is inserted into the heat-insulating space 50 from the back side of the refrigerator 10, and is arranged so as to be in contact with the refrigerant pipe 18 and the vacuum heat-insulating material 17B. Then, in the depth direction of the refrigerator 10, the heat insulating correction member 40 is arrange|positioned at least to the center area|region from the vicinity of the rear end part of the liner side panel 16B. As shown in the figure, the heat insulating correcting member 40 is in contact with two refrigerant pipes 18.

Specifically, the width W1 of the space 50 for heat insulation is 40 mm. As described above, the thickness T1 of the vacuum heat insulating material 17B is 15 mm, the thickness T2 of the heat insulating correcting member 40 is 25 mm, and the thickness T3 of the refrigerant pipe 18 is 4 mm. With this structure, in the arrangement area of the refrigerant pipe 18, the total thickness of the above-mentioned members is 44 mm, which is larger than the width W1 of the space 50 for heat insulation.

As shown in FIG. 6B, the adiabatic correcting member 40 is formed of a foamed resin material such as foamed polyethylene, and is compressed and deformed by approximately 4 mm inward along the shape of the refrigerant pipe 18 at the contact portion with the refrigerant pipe 18. With this structure, the compressed heat insulating correcting member 40 generates a repulsive force toward the inner liner side panel 16B, and the heat insulating correcting member 40 presses the vacuum heat insulating material 17B to the inner liner side panel 16B side. In addition, by improving the close contact between the vacuum heat insulating material 17B and the inner liner side panel 16B, when the foam heat insulating material 17A is formed in the manufacturing process, the vacuum heat insulating material 17B can be prevented from accidentally moving.

As shown in the figure, in the depth direction of the refrigerator 10, three rows of refrigerant pipes 18 are arranged substantially in parallel, and the refrigerant pipe 18 located in the middle is substantially at the center of the inner container side panel 16B. In addition, the two rows of refrigerant pipes 18 support the heat-insulating correcting member 40 from the rear side of the inner tank 16 in a balanced manner, so that the heat-insulating correcting member 40 is arranged to be the same as the inner tank side panel 16B and the outer box side panel 15B. May be parallel. With this structure, the heat-insulating correction member 40 pushes the contact area with the vacuum heat-insulating material 17B with a uniform force, so that even on the front side of the vacuum heat-insulating material 17B that is not in contact with the heat-insulating correction member 40 The close contact between the vacuum heat insulating material 17B and the inner liner side panel 16B can be improved.

Furthermore, the cut surface 43 formed in the end surface 41 of the front side of the heat insulating correction member 40 is arrange|positioned on the outer box side panel 15B side. As described above, the heat-insulating correction member 40 is compressed and deformed by being pressed inward by the refrigerant pipe 18, and is inserted into a narrow area such as the heat-insulating space 50. At this time, the heat-insulating correction member 40 can be inserted into a narrow area such as the heat-insulating space 50 by using the cut surface 43 on the front side thereof to go over the refrigerant pipe 18, thereby greatly improving workability.

Next, in the insulation space 50 between the inner tank back panel 16A and the outer box back panel 15A, the vacuum heat insulating material 17B is adhered to the inner surface of the outer box back panel 15A and separated from the inner tank back panel 16A. open. Between the vacuum heat insulating material 17B and the inner liner back panel 16A, a foam heat insulating material 17A is formed. In addition, both end faces 52 of the vacuum heat insulating material 17B are arranged outside the end faces 53 of the vacuum heat insulating material 17B that are substantially in close contact with the liner side panel 16B. With this structure, the gap between the vacuum insulation materials 17B becomes smaller, and heat leakage can be reduced, thereby improving the cooling efficiency of the refrigerator 10.

With reference to Fig. 7, the cross-sectional structure of the refrigerator 10 of this embodiment will be described. FIG. 7A is a cross-sectional view of the refrigerator 10 of this embodiment, and shows a cross section cut along the depth direction of the refrigerator 10 in the arrangement area of the spacer 30. FIG. 7B is an enlarged cross-sectional view of the area of the circle 54 shown in FIG. 7A.

As shown in FIG. 7A, on the left and right sides of the refrigerator 10, a vacuum heat insulating material 17B and a spacer 30 are arranged in the heat insulating space 50 between the inner container side panel 16B and the outer box side panel 15B. In addition, in the depth direction of the refrigerator 10, the vacuum insulation material 17B continues from the vicinity of the front end of the liner side panel 16B to the vicinity of the rear end of the liner side panel 16B, and is substantially in close contact with the liner side panel 16B .

In addition, in the insulation space 50 between the inner tank back panel 16A and the outer box back panel 15A, the vacuum heat insulating material 17B is adhered to the inner surface of the outer box back panel 15A and separated from the inner tank back panel 16A . Between the vacuum heat insulating material 17B and the inner liner back panel 16A, a foam heat insulating material 17A is filled. In addition, both end faces 52 of the vacuum heat insulating material 17B are arranged outside the end faces 53 of the vacuum heat insulating material 17B that are substantially in close contact with the liner side panel 16B. With this structure, the gap between the vacuum insulation materials 17B becomes smaller, heat leakage can be reduced, and the cooling efficiency of the refrigerator 10 is improved.

As shown in FIG. 7B, the spacer 30 is adhesively fixed to the end surface 55 on the front side of the vacuum insulation material 17B, and the spacer 30 is compressed between the vacuum insulation material 17B and the outer box side panel 15B. With this structure, the compressed spacer 30 generates a repulsive force toward the liner side panel 16B, and the spacer 30 presses the periphery of the end surface 55 of the vacuum heat insulating material 17B against the liner side panel 16B. In addition, when the foamed heat insulating material 17A is formed in the manufacturing process, accidental movement of the vacuum heat insulating material 17B can be prevented.

In addition, the outer box joint 44 is formed by bending the front end of the outer box side panel 15B, and the liner joint 45 is formed by bending the front end of the liner side panel 16B. Furthermore, by fitting the liner joint part 45 to the outer box joint part 44, the front end part of the outer box side panel 15B and the front end part of the liner side panel 16B are joined.

As shown in the figure, an end portion 46 extending backward is formed at the end of the outer box joint portion 44 so as to be fitted with the inner liner joint portion 45. Since the end 46 is the end surface of the steel plate, when the end 46 is pressed against the vacuum heat insulating material 17B, the outer skin of the vacuum heat insulating material 17B may be broken.

Therefore, in the present embodiment, by disposing the spacer 30 on the end surface 55 of the vacuum heat insulating material 17B, a structure in which the spacer 30 contacts the end 46 is obtained, and the end 46 does not contact the vacuum heat insulating material 17B. With this structure, it is possible to prevent the vacuum heat insulating material 17B from being damaged by the end 46.

Furthermore, since the spacer 30 contacts the end 46, a space 47 is formed in front of the vacuum heat insulating material 17B. With this structure, in the process of manufacturing the refrigerator 10, when the heat insulating space 50 is foamed and filled with the foam heat insulating material 17A, the space 47 can be used to make the liquid foam materials 63, 64 described later (see FIG. 10) Flow well.

As shown in Figures 6 and 7, in the heat-insulating space 50 in the left-right direction of the refrigerator 10, the vacuum heat-insulating material 17B is arranged on the side of the inner tank side panel 16B, and the foamed heat-insulating material 17A is arranged on the outer box side panel. 15B side. In addition, the thermal expansion coefficients of the vacuum insulation material 17B and the foam insulation material 17A are different. When the vacuum insulation material 17B is attached to the outer box side panel 15B, the boundary between the vacuum insulation material 17B and the foam insulation material 17A may be different. It appears on the outer surface of the outer box side panel 15B like a step. However, in this embodiment, the boundary between the vacuum insulation material 17B and the foam insulation material 17A is separated from the outer box side panel 15B, so the above-mentioned boundary does not appear on the outer box side panel 15B, thereby preventing the refrigerator 10 from being damaged. The side appearance design becomes worse.

If the vacuum heat insulating material 17B is arranged in close contact with the outer box side panel 15B, measures must be taken to prevent air from staying in the vicinity of the refrigerant pipe 18. For example, it is necessary to take measures to form a recess corresponding to the refrigerant pipe 18 on the side surface of the vacuum heat insulating material 17B. However, in this embodiment, the refrigerant pipe 18 is embedded in the foamed heat insulating material 17A or enters into the heat insulating correcting member 40, so there is no need to process the above-mentioned recesses, thereby simplifying the structure of the refrigerator 10 and reducing manufacturing costs. .

In addition, according to the present embodiment, referring to FIG. 5A, the vacuum heat insulating material 17B is separated from the refrigerant pipe 18 and arranged, so that the side surface of the vacuum heat insulating material 17B does not need to form a groove to avoid the refrigerant pipe 18. Furthermore, the heat insulating correcting member 40 in contact with the refrigerant pipe 18 is compressed and deformed along the shape of the refrigerant pipe 18. With this structure, the side surface of the vacuum heat insulating material 17B can be in a simple flat plate state, so that the manufacturing cost can be reduced. In addition, the configuration of the refrigerant pipe 18 is relatively free, and the manufacturing cost can also be reduced.

Next, referring to FIGS. 8 to 11, a method of manufacturing the refrigerator 10 will be described. FIG. 8 is a perspective view for explaining the process of assembling the inner container 16 into the outer box 15 of the refrigerator 10 of this embodiment. 9A, 9B, and 9C are cross-sectional views for explaining the process of assembling the vacuum heat insulating material 17B of the refrigerator 10 of the present embodiment to the space 50 for heat insulation. FIG. 10 is a side cross-sectional view for explaining a process of foaming and filling the foamed heat insulating material 17A of the refrigerator 10 of the present embodiment in the heat insulating space 50. 11A, 11B, and 11C are cross-sectional views for explaining the process of foaming and filling the foamed heat insulating material 17A of the refrigerator 10 of the present embodiment into the heat insulating space 50. Figs.

In addition, in the following description, FIG. 1 to FIG. 7 and the description thereof will be appropriately referred to, and the same components as those of the refrigerator 10 described using FIG. 1 to FIG. 7 are assigned the same reference numerals, and repeated descriptions are omitted. In addition, the cross-sectional views shown in FIGS. 11A to 11C are cross-sectional views obtained by cutting the arrangement area of the heat insulating correcting member 40 arranged near the inner liner top panel 16C and viewing the lower side from the cut position.

First, as shown in FIG. 8, an outer box 15 formed by forming a steel plate in a predetermined shape, and a synthetic resin inner container 16 formed by vacuum forming in a predetermined shape are prepared. Then, as shown in FIG. 2A, the refrigerant pipe 18 is adhered to the inner surface of the outer box side panel 15B and the outer box top panel 15C through the aluminum tape 32, and the refrigerant pipe 18 is used for the circulating vapor compression refrigeration cycle The refrigerant used in. After that, the inner container 16 is assembled into the outer box 15. In addition, in the assembly process, the outer box back panel 15A shown in FIG. 6A is not attached.

Next, as shown in FIG. 9A, a vacuum insulation material 17B is prepared, and the vacuum insulation material 17B is inserted into the insulation space 50 between the inner container side panel 16B and the outer box side panel 15B on the left and right sides of the refrigerator 10 . In addition, the heat insulation space 50 has a tapered shape in the left-right direction of the refrigerator 10, and the width W1 thereof is narrowed toward the front of the refrigerator 10 in the depth direction.

At this time, as shown in FIG. 4C, the vacuum heat insulating material 17B has a substantially rectangular shape long in the vertical direction of the drawing, and the sides of the vacuum heat insulating material 17B on the front side of the refrigerator 10 in the depth direction are respectively near the center and Two spacers 30 are installed near the lower end.

Next, the vacuum heat insulating material 17B is inserted into the space 50 for heat insulation with the side edge provided with the spacer 30 facing downward. Then, when the lower end side of the vacuum heat insulating material 17B is inserted into the lower end of the heat insulating space 50, the spacer 30 is compressed between the vacuum heat insulating material 17B and the outer box side panel 15B. As a result, as described above, using the repulsive force generated by the spacer 30, the vacuum heat insulating material 17B is pressed against the liner side panel 16B, thereby positioning and assembling the vacuum heat insulating material 17B to the heat insulating box 11 more stably.

Then, as shown in FIG. 9B, the heat insulating correcting member 40 is prepared, and the heat insulating correcting member 40 is inserted into the space 50 for heat insulation in which the vacuum heat insulating material 17B has been inserted. As shown in FIGS. 6A and 6B, the width W1 (refer to FIG. 9A) of the insulation space 50 on the left and right sides of the refrigerator 10 is 40 mm, the thickness T1 of the vacuum insulation material 17B is 15 mm, and the thickness T3 of the refrigerant pipe 18 Is 4mm. In addition, the space 50 for heat insulation has a tapered shape, and its width W1 becomes narrow toward the front of the depth direction of the refrigerator 10.

With this structure, the width W2 of the space 50 for heat insulation after the vacuum heat insulating material 17B is inserted is 25 mm in the area without the refrigerant pipe 18 and 21 mm in the area where the refrigerant pipe 18 is arranged. In addition, the thickness T2 of the heat-insulating corrective member 40 is 25 mm. To insert the heat-insulating corrective member 40 into the heat insulating space 50, it is necessary to pull the outer box side panel 15B outward or crush the vacuum heat insulating material 17B, the operation is time-consuming and laborious.

Therefore, in the present embodiment, the heat-insulating correction member 40 is inserted into the heat-insulating space 50 in a state where the cut surface 43 of the end surface 41 of the heat-insulating correction member 40 is located on the outer box side panel 15B side. In addition, in a particularly narrow area in the heat insulation space 50, that is, the arrangement area of the refrigerant pipe 18, the cut surface 43 easily crosses the refrigerant pipe 18, so that the insertion workability of the heat insulating correcting member 40 can be greatly improved.

Next, as shown in FIG. 9C, in the depth direction of the refrigerator 10, the heat insulating correction member 40 is arrange|positioned at least to the center area|region from the vicinity of the rear end part of the liner side panel 16B. In addition, the heat-insulating correction member 40 is preferably arranged to approximately two-thirds of the area from the vicinity of the rear end of the liner side panel 16B. In addition, in the present embodiment, the adiabatic correcting member 40 contacts the two refrigerant pipes 18 on the side surface. Then, the outer box back panel 15A to which the vacuum heat insulating material 17B is adhered is prepared, and the outer box back panel 15A is assembled to the upper end of the outer box side panel 15B. Through this operation, the space 50 for heat insulation filled with the foamed heat insulating material 17A is formed as a substantially closed space, and the vacuum heat insulating material 17B is firmly fixed to a predetermined position in the space 50 for heat insulation.

Next, as shown in FIG. 10, injection holes 61 and 62 are formed in the outer box back panel 15A. The injection hole 61 is a hole for injecting the liquid foaming material 63, and the injection hole 62 is a hole for injecting the liquid foaming material 64. Here, with the front side of the refrigerator 10 facing down, the liquid foaming materials 63 and 64 are injected into the heat insulating space 50 through the injection holes 61 and 62 with the inner container 16 and the outer box 15 lying horizontally. Inside.

Here, two parts of the vacuum heat insulating material 17B are fixed from the rear side in the depth direction of the refrigerator 10 by the heat insulating correcting member 40, and the vacuum heat insulating material 17B is fixed from the front side in the depth direction of the refrigerator 10 by the spacer 30 Two parts of 17B. As shown in the figure, the heat insulating correction member 40 and the spacer 30 are alternately arranged in the vertical direction of the refrigerator 10.

In particular, the injection hole 61 is formed near the upper end side of the vacuum heat insulating material 17B. As shown in FIG. 5A, there is also a vacuum heat insulating material 17B in a state where both ends in the longitudinal direction are bent in the left-right direction of the drawing, and the product quality is not problematic. In addition, in this embodiment, the horizontal distance L7 between the location of the heat insulating correcting member 40 and the injection hole 61 is, for example, 100 mm.

As a result, as shown in FIG. 11A, the curved shape of the upper end side of the vacuum heat insulating material 17B is corrected by the heat insulating correcting member 40 and is pressed toward the liner side panel 16B side by the heat insulating correcting member 40. As described above, the heat-insulating correction member 40 is pressed into a narrow area such as the heat-insulating space 50, and is arranged in the depth direction of the refrigerator 10 from the vicinity of the rear end of the liner side panel 16B to at least the central area. With this structure, substantially the entire surface of the vacuum heat insulating material 17B is in close contact with the inner container side panel 16B.

Next, as shown in FIG. 10, the liquid foaming material 63 is injected from the injection hole 61, and the liquid foaming material 64 is also injected from the injection hole 62. In addition, the liquid foaming material 63 injected from the injection hole 61 passes through the heat insulation space 50 between the vacuum heat insulating material 17B and the outer box side panel 15B, and reaches the front side of the heat insulation space 50 directly below the injection hole 61. Ends. Then, the liquid foaming material 63 flows toward the spacer 30 arranged in the center of the refrigerator 10 while foaming.

At this time, as shown in FIG. 11B, in the arrangement area of the heat-insulating correction member 40 on the front side of the spacer 30 and its peripheral area, the liquid foaming material 63 flows to the upper side of the drawing while foaming. As described above, the curved shape of the upper end side of the vacuum heat insulating material 17B near the injection hole 61 (refer to FIG. 10) is corrected by the heat insulating correcting member 40, and is in close contact with the liner side panel 16B side. As a result, when the liquid foaming material 63 is foamed and filled, the liquid foaming material 63 can be prevented from penetrating between the vacuum heat insulating material 17B and the liner side panel 16B and foaming while rising, thereby preventing the vacuum heat insulating material 17B A foamed heat insulating material 17A is formed between the inner liner side panel 16B.

In addition, as shown in FIG. 11C, the liquid foaming material 63 rises from the heat insulation space 50 between the vacuum heat insulating material 17B and the outer box side panel 15B, which can prevent the gap between the vacuum heat insulating material 17B and the outer box side panel 15B. An unfilled area appears in the space 50 for heat insulation. In addition, the liquid foaming material 63 is the heat insulation space 50 between the inner tank back panel 16A and the outer box back panel 15A, and between the inner tank back panel 16A and the vacuum heat insulating material 17B adhered to the outer box back panel 15A The heat insulation space 50 is foamed around, so that the foam heat insulation material 17A is also formed on the back side of the inner liner 16.

Then, as indicated by arrows 65, 66, the liquid foaming materials 63, 64 injected from the injection holes 61, 62 foam while flowing in the heat insulation space 50 at the end of the front side of the refrigerator 10, and finally filled The central area 67. As a result, as shown in FIG. 5A and the like, the liquid foaming materials 63, 64 injected from the injection holes 61, 62 are foamed and filled in the insulation space 50 between the outer box 15 and the inner liner 16, thereby forming a foamed partition. Thermal material 17A. In addition, it is possible to prevent appearance defects on the outer box side panel 15B of the refrigerator 10 due to the unfilled area of the foam heat insulating material 17A, and eventually the refrigerator 10 is discarded.

Furthermore, in this embodiment, the horizontal distance L4 between the injection hole 61 and the spacer 30 located in the center part of the up-down direction of the refrigerator 10 is preferably 200 mm or more. Here, the horizontal distance L4 refers to the distance between the injection hole 61 and the spacer 30 in the horizontal direction when the outer box 15 and the inner liner 16 are lying down. With this structure, the liquid foaming material 63 diffuses and foams in a certain degree of liquid state and reaches the spacer 30, so the liquid foaming material 63 can easily pass the spacer 30 and flow well toward the right side of the drawing. In addition, when the horizontal distance L4 cannot be sufficiently secured, the liquid foaming material 63 is blocked by the spacer 30.

In addition, the height L5 of the spacer 30 is preferably 50 mm or less, and more preferably 40 mm or less. In this way, the liquid foaming material 63 can easily flow to the area 67 over the spacer 30.

On the other hand, the spacer 30 located on the lower end side of the up-down direction of the refrigerator 10 is closer to the lower end side of the refrigerator 10 than the injection hole 62. With this structure, the liquid foaming material 64 injected from the injection hole 62 is blocked by the spacer 30 and flows to the area 67. In addition, the liquid foaming material 64 can be sufficiently diffused to the area 67. In addition, similar to the height L5 of the spacer 30, the height L6 of the spacer 30 is preferably 50 mm or less, and more preferably 40 mm or less.

Then, as shown in FIG. 1A, the refrigerator 10 is completed by mounting the heat insulation door 34, the heat insulation door 35, and each component to the heat insulation box 11.

Claims (12)

A refrigerator, characterized by comprising: a heat-insulating box in which a storage chamber is formed; a refrigeration cycle for cooling the air blown into the storage chamber; and a refrigerant pipe for circulating the refrigeration cycle Refrigerant The heat insulation box includes: an outer box, which forms the outer surface of the heat insulation box; an inner liner, which is arranged inside the outer box; and a heat insulation material, which is arranged between the outer box and the In the insulation space between the inner tanks; The heat insulating material is arranged at least in the heat insulating space on both sides of the lateral width direction of the heat insulating box, and includes a vacuum heat insulating material and a foam heat insulating material. The length of the vacuum heat insulating material The direction is along the height direction of the heat insulation box, and the foam heat insulation material is foamed and filled in the heat insulation space including the arrangement area of the vacuum heat insulation material; A plurality of spacers are installed on one end side of the vacuum heat insulating material located on the front side in the depth direction of the heat insulating box body, at least a part of which is arranged between the outer box and the vacuum heat insulating material , On the other end side of the vacuum heat insulating material located on the rear side of the heat insulating box in the depth direction, a plurality of heat insulating correcting members are arranged, and the heat insulating correcting members are arranged between the outer box and The length direction of the vacuum insulation materials is along the depth direction of the insulation box. The refrigerator according to claim 1, wherein: The refrigerant pipes fixed to the outer box are arranged at least in the insulation space on both sides in the lateral width direction of the insulation box, and The heat-insulating corrective member is formed of an elastic member, and has a chamfered notch at its longitudinal end, The heat-insulating correcting member is fixed in the heat-insulating space in a state where at least two or more refrigerant pipes are embedded in its longitudinal direction, and the cutout is located on one of the refrigerant pipes. side. The refrigerator according to claim 1, wherein: The vacuum heat insulation material is arranged near the top surface of the inner container in the height direction of the heat insulation box, The heat-insulating correction member is fixed in the heat-insulating space in a state where the vacuum heat-insulating material near the top surface of the liner is pressed toward the liner. The refrigerator according to claim 1, wherein: The heat insulating corrective member is formed of a foamed resin material. The refrigerator according to claim 1, wherein: The length of the heat-insulating corrective member in the depth direction of the heat-insulating box is at least half of the liner. The refrigerator according to claim 1, wherein: The spacer is formed of a foamed resin material; The spacer includes: a first adhesive surface that is adhered to a side surface of one end of the vacuum heat insulating material located on the front side in the depth direction of the heat insulation box; and a second adhesive surface It crosses perpendicularly to the 1st adhesive surface and is adhered to the end surface of the one end of the said vacuum heat insulating material located in the depth direction front side of the said heat insulation box. The refrigerator according to claim 1, wherein: In the space for heat insulation on both sides of the widthwise direction of the heat insulation box, two heat insulation corrective members and two spacers are respectively arranged with the vacuum heat insulation material; In addition, in the vertical direction of the heat insulating box, the heat insulating correcting member and the spacer are alternately arranged at intervals. The refrigerator according to claim 1, wherein: The front ends of the outer box side panels on both sides of the lateral width direction of the outer box are bent to form an outer box joint portion, and the outer box joint portion is formed with an end portion extending backward; The front ends of the inner tank side panels on both sides in the lateral width direction of the inner tank are bent to form an inner tank joint, and the inner tank joint is fitted to the outer box joint; The spacer contacts the end. A method for manufacturing a refrigerator, characterized in that it comprises the following steps: Prepare the outer box that constitutes the heat-insulating box, the inner liner arranged inside the outer box, the vacuum heat insulating material arranged in the insulating space between the outer box and the inner liner, and the The spacer and the heat-insulating corrective member in which the vacuum heat insulation material is fixed in the space for heat insulation, and the length direction of the vacuum heat insulation material is along the height direction of the heat insulation box; After arranging the inner tank inside the outer box, and installing the spacer on the vacuum insulation material on the front side of the heat insulation box in the depth direction, at least to the heat insulation box Insert the vacuum heat insulation material into the heat insulation space on both sides of the width direction, respectively; In the heat insulating space where the vacuum heat insulating material is arranged, the heat insulating correcting member is inserted so that its longitudinal direction is along the depth direction of the heat insulating box, and is removed from the partition On the back side of the heat box in the depth direction, press the vacuum insulation material into at least the center of the inner box; A liquid foaming material is injected into the heat insulation space and foamed to form a foam heat insulation material in the heat insulation space including the arrangement area of the vacuum heat insulation material. The method for manufacturing a refrigerator according to claim 9, wherein: The vacuum heat insulation material is arranged near the top surface of the inner container in the height direction of the heat insulation box, The heat-insulating correction member is fixed in the heat-insulating space in a state where the vacuum heat-insulating material near the top surface of the liner is pressed toward the liner. The method for manufacturing a refrigerator according to claim 10, wherein: In the state where the outer box and the inner liner are laid down, the liquid foaming material is injected into the heat insulation space from two injection holes formed in the back panel of the outer box of the outer box. Foaming, thereby forming a foamed heat-insulating material in the space for heat insulation including the area where the vacuum heat-insulating material is arranged; However, the horizontal distance between the heat insulating correcting member and one injection hole formed near the upper end side of the vacuum heat insulating material was 100 mm. The method for manufacturing a refrigerator according to claim 11, wherein: Two spacers are installed at the central part and the lower end part of the longitudinal side of the vacuum insulation material; The horizontal distance between one injection hole formed near the upper end side of the vacuum heat insulating material and the spacer located at the central part is 200 mm or more, and the spacer located at the lower end part is larger than the other injection hole. Close to the lower end side of the refrigerator.

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