WO2021213348A1

WO2021213348A1 - Refrigerator

Info

Publication number: WO2021213348A1
Application number: PCT/CN2021/088249
Authority: WO
Inventors: 千田勇介; 望月修; 渡边拓也
Original assignee: 海尔智家股份有限公司; 青岛海尔电冰箱有限公司; Aqua 株式会社
Priority date: 2020-04-22
Filing date: 2021-04-20
Publication date: 2021-10-28
Also published as: JP2021173448A; CN114867978A

Abstract

Provided by the present invention is a refrigerator that makes it possible to suppress deformation and displacement, or the like of a heat-insulating partition wall in processes of foaming and filling heat insulation materials. The refrigerator 10 comprises: an insulating box 11, provided with an outer box 111 and an inner liner 112; a storage compartment, formed inside the insulating box 11; and a heat-insulating partition wall 28, dividing the storage compartment. In addition, protrusions 22, protruding toward the rear side, are formed on the rear side surface of the heat-insulating partition wall 28 and the protrusions 22 are inserted into insertion openings 23 formed in the inner liner 112 until same reaches a place in the vicinity of the outer box 111.

Description

refrigerator

Technical field

The present invention relates to a refrigerator that cools and preserves food and the like in a storage compartment, and more particularly relates to a refrigerator with a heat-insulating partition wall separating the storage compartment.

Background technique

A general refrigerator has a plurality of storage compartments with different internal temperatures, and a heat-insulating partition wall filled with a heat-insulating material is arranged between the storage compartments.

With reference to FIG. 8, the structure for partitioning each storage compartment described in Patent Document 1 as a background art will be described. FIG. 8 shows a perspective exploded view of a refrigerator 1100 related to the background art. The refrigerator 1100 has a heat preservation box body 1101, and a storage compartment is formed inside the heat preservation box body 1101.

The heat preservation box body 1101 has: an outer box 1102; an inner liner 1103 located inside the outer box 1102; and an insulating material 1104 foamed and filled between the outer box 1102 and the inner liner 1103. The storage compartment formed inside the thermal insulation box 1101 has a refrigerating compartment 1105, a freezing compartment 1106, and a fresh-keeping compartment 1107 from above.

The refrigerating compartment 1105 and the freezing compartment 1106 are separated by a heat-insulating partition wall 1108 having a heat-insulating structure. In addition, the freezer compartment 1106 and the fresh-keeping compartment 1107 are partitioned by a heat-insulating partition wall 1109 having a heat-insulating structure.

In the manufacturing process of the refrigerator 1100, after the inner liner 1103 is arranged inside the outer box 1102, the heat-insulating partition wall 1108 and the heat-insulating partition wall 1109 prepared as separate parts are assembled into the inner liner 1103. In addition, a heat insulating material 1104 is foamed and filled between the outer box 1102 and the inner liner 1103. Thereby, the refrigerating compartment 1105 and the freezing compartment 1106 are insulated and partitioned by the insulating partition wall 1108, and the freezing compartment 1106 and the fresh-keeping compartment 1107 are insulated and partitioned by the insulating partition wall 1109.

[Patent Document 1] Japanese Patent Application Laid-Open No. 2018-179407.

However, in the aforementioned refrigerator 1100, there is a problem that the heat-insulating partition wall 1108 and the heat-insulating partition wall 1109 may be deformed or moved during the manufacturing process.

Specifically, when the thermal insulation material 1104 is foamed and filled between the outer box 1102 and the inner liner 1103, in order to suppress the deformation of the thermal insulation box 1101, the thermal insulation box 1101 is coupled to a foaming mold. Here, there is a problem that when the thermal insulation box 1101 is coupled to the foaming mold, the thermal insulation partition wall 1108 and the thermal insulation partition wall 1109 may be deformed.

In addition, there is also the following problem: the connection strength between the thermal insulation partition wall 1108 and the thermal insulation partition wall 1109 and the thermal insulation box 1101 is not necessarily sufficient.

Summary of the invention

The present invention has been made in view of the foregoing circumstances, and an object of the present invention is to provide a refrigerator capable of suppressing the deformation of the thermal insulation partition wall in the process of foaming the thermal insulation material.

The present invention provides a refrigerator, which includes a heat preservation box having an outer box and an inner liner, a storage compartment formed inside the heat preservation box, and a heat insulation partition wall for separating the storage compartment It is characterized in that the heat-insulating partition wall has a partition body and a protrusion protruding rearward from the partition body, an insertion port is formed at a position corresponding to the protrusion of the liner, and the The protrusion is configured to be inserted into the insertion port until it reaches the vicinity of the outer box. According to the refrigerator of the present invention, in the process of inserting the heat-insulating partition wall into the mold so that the heat-insulating material is foamed inside the heat-insulating box, it is possible to suppress the movement or deformation of the heat-insulating partition wall. Specifically, in the process of inserting the heat-insulating partition wall into the mold, the end of the protruding part of the heat-insulating partition wall is located near the outer box, so when an external force is applied, the protruding part is supported so that the outer box abuts The partition body of the heat-insulating partition wall can suppress the deformation of the heat-insulating partition wall and the like. In addition, the bonding strength between the thermal insulation partition wall and the thermal insulation box can be improved.

In addition, the refrigerator of the present invention further includes a protection part for protecting the protrusion, and the protection part is formed from the connection part of the protrusion and the partition body until it reaches the middle of the protrusion. According to the refrigerator of the present invention, the rigidity of the protrusion can be ensured by protecting the protrusion from the connection part to the middle part of the protrusion, and therefore the damage of the protrusion during transportation or assembling of the heat insulating partition wall can be prevented.

In addition, in the refrigerator of the present invention, the heat-insulating partition wall is composed of the following structures: a partition heat-insulating material made of a heat-insulating material, an upper cover portion covering the partition heat-insulating material from above, and from below Cover the lower cover part of the partition and heat insulation material; the protection part is composed of the following structures: a protective upper part formed on the rear side surface of the upper cover part, and formed on the rear side surface of the lower cover part The upper part of the protection lower part. According to the refrigerator of the present invention, the protection part is formed of the upper cover part and the lower cover part, and therefore the protection part can be formed without an additional member.

In addition, in the refrigerator of the present invention, it is characterized in that the protection part terminates between the inner liner and the outer box. According to the refrigerator of the present invention, the protective part made of synthetic resin with high thermal conductivity is terminated in front of the outer box. Therefore, heat is not conducted to the outer box via the protective part, and it is possible to suppress the occurrence of knots at the part where the outer box abuts the protrusion. dew.

The present invention provides a refrigerator, which includes a heat preservation box having an outer box and an inner liner, a storage compartment formed inside the heat preservation box, and a heat insulation partition wall for separating the storage compartment The heat-insulating partition wall has a partition body and a protrusion protruding rearward from the partition body, an insertion port is formed at a position corresponding to the protrusion of the liner, and the protrusion is It is configured to be inserted into the insertion port until it abuts against the outer box. According to the refrigerator of the present invention, in the process of inserting the heat-insulating partition wall into the mold so that the heat-insulating material is foamed inside the heat-insulating box, it is possible to suppress the movement or deformation of the heat-insulating partition wall. Specifically, in the process of inserting the heat-insulating partition wall into the mold, the end of the protruding part of the heat-insulating partition wall abuts against the outer box, so when an external force acts, the protrusion is supported so that the outer box abuts The partition body of the heat-insulating partition wall can suppress the deformation of the heat-insulating partition wall and the like. In addition, the bonding strength between the thermal insulation partition wall and the thermal insulation box can be improved.

In addition, in the refrigerator of the present invention, a partition heat insulation material is installed inside the partition body, and the partition heat insulation material has a partition heat insulation body and a partition protruding rearward from the rear surface of the partition heat insulation body. Thermal protrusion; the protrusion has the heat-insulating protrusion, and its end is composed of the heat-insulating protrusion, and the heat-insulating protrusion is in contact with the outer box. According to the refrigerator of the present invention, the end of the protrusion is constituted by the heat-insulating protrusion, and the outer box of the part abutting with the protrusion is prevented from being extremely cooled due to heat conduction, thereby suppressing the heat in the outer box. Condensation has occurred on the outer surface of the device.

In addition, the ice of the present invention further includes a protective part for protecting the heat-insulating protrusion, and the protecting part is formed from the base of the heat-insulating protrusion until it reaches the middle of the heat-insulating protrusion. According to the refrigerator of the present invention, the rigidity of the protrusion can be ensured by protecting the protrusion from the connection part to the middle part of the protrusion, and therefore, the damage of the protrusion during transportation or assembling of the thermal insulation partition wall can be prevented; and, the protection part It terminates in front of the outer box and does not contact the outer box. Therefore, heat is not conducted to the outer box via the protective part, and it is possible to prevent condensation from occurring at the part where the outer box abuts the protruding part.

In addition, in the refrigerator of the present invention, a stepped portion is continuously formed around the heat-insulating protrusion in the middle portion of the heat-insulating protrusion, and the rear end of the protection portion abuts the step portion. With this structure, even if a forward pushing force acts on the protruding portion, the stepped portion and the rear end of the protective portion are in contact with each other to support the heat-insulating protruding portion, so deformation of the protruding portion can be suppressed.

In addition, in the refrigerator of the present invention, the heat insulation partition wall is composed of the partition heat insulation material, an upper cover portion, and a lower cover portion; A protective upper part whose side surface protrudes rearward, the upper cover main body covers the upper surface and the upper side surface of the partition heat-insulating main body of the partition heat-insulating material, and the protective upper part covers the base part of the heat-insulating protrusion The upper surface and the upper side surface of the base part; the lower cover part has a lower cover main body and a protective lower part protruding rearward on the rear side surface of the lower cover main body, the lower cover main body covers all of the partition heat insulating material Said separating the lower surface and the lower side surface of the heat-insulating main body, the protective lower part covers the lower surface of the base of the heat-insulating protrusion and the lower part of the side surface of the base; constitute. According to the refrigerator of the present invention, the protection part is formed of the upper cover part and the lower cover part, and therefore the protection part can be formed without an additional member.

In addition, in the refrigerator of the present invention, a groove is formed on the inner surface of the liner, and the insertion port is formed in the groove; the heat-insulating partition wall is fitted into the groove, and the The protrusion is inserted into the insertion port. According to the refrigerator of the present invention, the installation and positioning of the inner liner and the heat insulation partition wall are convenient.

Description of the drawings

Fig. 1 is a perspective view showing a refrigerator according to an embodiment of the present invention;

Fig. 2 is a side sectional view showing a refrigerator according to an embodiment of the present invention;

3 is a diagram showing a refrigerator according to an embodiment of the present invention, which separately shows a perspective view of a heat preservation box and a heat insulation partition wall;

Fig. 4A is a perspective view showing a heat insulating partition wall of a refrigerator according to an embodiment of the present invention;

4B is a side cross-sectional view showing the heat insulation partition wall of the refrigerator according to the embodiment of the present invention;

Fig. 4C is a schematic diagram showing a heat-insulating partition wall of a refrigerator according to an embodiment of the present invention, in which a side cross-sectional enlarged view of the heat-insulating protrusion and its peripheral portion is shown;

Fig. 5 is an exploded perspective view showing a heat insulating partition wall of a refrigerator according to an embodiment of the present invention;

6A is a side cross-sectional view showing a method of manufacturing a refrigerator according to an embodiment of the present invention, showing a process of foaming a heat insulating material;

Fig. 6B is a sectional view showing the B-B section in Fig. 6A;

Fig. 7A is a side sectional view showing a method of manufacturing a refrigerator of a comparative example, showing a process of foaming a heat insulating material;

Fig. 7B is a cross-sectional view showing the C-C cross section in Fig. 7A;

Fig. 8 is an exploded perspective view showing the structure of a background art refrigerator.

Description of reference signs:

10. Refrigerator; 11. Heat preservation box; 111. Outer box; 112. Liner; 113. Heat insulation material; 115. Cooling room; 117. Defrosting heating unit; 118. Air supply duct; 12. Cold storage room; , Freezer compartment; 14, mechanical room; 16, refrigeration cycle; 161, compressor; 162, evaporator; 17, partition; 18, heat insulation door; 19, heat insulation door; 20, heat insulation door; 21, heat insulation door; 22 23. Insertion port; 24. Groove; 25. Separate main body; 26. Separate heat insulation material; 27. Blower; 28. Heat insulation partition wall; 29. Heat insulation protrusion; 30. Protect the upper part; 32. Step part; 33. Upper cover part; 34. Lower cover part; 35. Foaming mold; 36. Partition wall housing part; 37. Protection part; 38. Upper cover body; 39. Partition and heat insulation Main body; 40, lower cover main body; 1100, refrigerator; 1101, heat preservation box; 1102, outer box; 1103, inner tank; 1104, heat insulation material; 1105, cold storage room; 1106, freezer compartment; 1107, fresh-keeping room; 1108 , Thermal insulation partition wall; 1109, Thermal insulation partition wall.

Detailed ways

Next, the refrigerator 10 according to the embodiment of the present invention will be described in detail based on the drawings. In the following description, the same members are denoted by the same reference numerals in principle, and repeated descriptions are omitted. In addition, in the following description, the respective directions of up, down, front, back, left, and right are appropriately used, and left and right indicate left and right when the refrigerator 10 is viewed from the front. In addition, in the present embodiment, the refrigerator 10 is exemplified as a refrigerator having a freezer compartment and a refrigerating compartment, but as the refrigerator 10, a refrigerator having only a freezer compartment or a refrigerator having only a refrigerating compartment may be employed.

Fig. 1 is a perspective view of a refrigerator 10 according to an embodiment of the present invention viewed from the front left. The refrigerator 10 has a heat preservation box 11 and a storage compartment formed inside the heat preservation box 11. As a storage compartment, a refrigerating compartment 12 and a freezing compartment 13 are provided from the upper side. The front opening of the refrigerating compartment 12 is closed by the heat-insulating door 18 in the upper part thereof, and is closed by the heat-insulating door 19 in the lower part thereof. The front opening of the freezer compartment 13 is closed by the heat-insulating door 20 at the upper part thereof, and is closed by the heat-insulating door 21 at the lower part thereof. The insulated door 18 is a revolving door, and the insulated door 19, the insulated door 20, and the insulated door 21 are drawer-type doors.

FIG. 2 is a side sectional view showing the refrigerator 10 as a whole. The heat preservation box 11 is composed of: an outer box 111 made of steel plate bent into a predetermined shape; an inner container 112 made of a synthetic resin plate, which is arranged inside the outer box 111; and filled in the outer box 111 and the inner The insulation material 113 between the gallbladder 112. In addition, the refrigerating compartment 12 and the freezing compartment 13 are insulated and partitioned by a heat-insulating partition wall 28. The structure and the like of the heat insulating partition wall 28 will be described later with reference to FIG. 4 and the like.

A cooling compartment 115 is formed behind the freezing compartment 13, and the freezing compartment 13 and the cooling compartment 115 are separated by a partition 17. The evaporator 162 as a cooler is arranged inside the cooling chamber 115. In addition, a machine room 14 is divided and formed on the lower end side and the rear of the refrigerator 10, and the compressor 161 is arranged in the machine room 14. The evaporator 162 and the compressor 161 form a refrigerant compression refrigeration cycle 16. Specifically, the refrigeration cycle 16 includes a compressor 161, a condenser not shown, an expansion device not shown, and an evaporator 162. By operating the refrigeration cycle 16, the evaporator 162 is used to cool the cold air inside the cooling chamber 115, and the cold air is blown to each storage compartment by the blower 27, and the temperature in each storage compartment becomes the specified cooling temperature Scope. The components constituting the refrigeration cycle 16 are connected to each other by a refrigerant pipe, and the refrigerant pipe 23 is made of a metal pipe such as a copper pipe.

Inside the cooling chamber 115, a blower 27 is arranged above the evaporator 162. The blower 27 is an axial blower or a centrifugal blower, and blows cold air inside the cooling compartment 115 cooled by the evaporator 162 to the refrigerating compartment 12 and the freezing compartment 13.

Inside the cooling chamber 115, a defrost heating unit 117 is arranged below the evaporator 162. The defrost heating unit 117 is a heater that generates heat when energized.

An air duct 118 is formed upward from the cooling chamber 115. The air duct 118 is formed with an opening for blowing out cold air to the refrigerating compartment 12. The cold air that has cooled the refrigerating compartment 12 returns to the cooling compartment 115 via the return air duct (not shown here), thereby cooling the refrigerating compartment 12 to a preset refrigerating temperature range.

A part of the blown cold air is blown to the freezer compartment 13 through the opening formed in the upper part of the partition plate 17, and the cold air which has cooled the freezer compartment 13 returns to the cooling chamber 115 from the opening formed in the lower part of the partition plate 17. Thereby, the freezing compartment 13 is cooled to the preset freezing temperature range.

When the refrigerating compartment 12 and the freezing compartment 13 are continuously cooled by the refrigeration cycle 16, a lot of frost is generated at the evaporator 162 and hinders the heat transfer and air flow of the evaporator 162. Therefore, the defrosting operation of the evaporator 162 is performed regularly . In the defrosting operation, the cooling of the refrigerating compartment 12 and the freezing compartment 13 by the refrigeration cycle 16 is stopped, the blowing by the blower 27 is stopped, and the air inside the cooling chamber 115 is heated by the defrosting heating unit 117 to remove the evaporator 162. Frost. After the defrosting operation ends, the cooling operation of the refrigerating compartment 12 and the freezing compartment 13 described above is restarted.

Fig. 3 is a perspective view showing the thermal insulation box 11 with the thermal insulation box 11 and the thermal insulation partition wall 28 in a separated state.

As described above, the storage compartment formed inside the heat preservation box 11 is divided into the refrigerating compartment 12 and the freezing compartment 13 by the heat insulating partition wall 28. The thermal insulation partition wall 28 is assembled with the thermal insulation box 11 so as to fit in the groove 24 formed on the inner surface of the inner liner 112. The groove 24 is a concave area in which the inner surface of the left side, the inner surface of the rear side, and the inner surface of the right side of the inner liner 112 are recessed outward. In addition, the rear surface of the inner liner 112 is partially opened with a rectangular opening, thereby forming an insertion opening 23. In this embodiment, two insertion ports 23 are formed in the groove 24.

The protruding portion 22 is a portion formed by protruding rearward from the rear surface of the heat insulating partition wall 28. In this embodiment, two protrusions 22 are formed on the rear side surface of the thermal insulation partition wall 28. When the thermal insulation partition wall 28 is assembled to the thermal insulation box 11, the protrusion 22 is inserted into the insertion opening 23 of the inner liner 112. In this way, as described later with reference to FIG. 6B, it is possible to prevent the heat-insulating partition wall 28 from being deformed in the foaming process when the refrigerator 10 is manufactured. In addition, the thermal insulation partition wall 28 can also be assembled to the thermal insulation box 11 more firmly.

4A is a perspective view showing the heat insulation partition wall 28, FIG. 4B is a cross-sectional view of the A-A section of FIG. 4A, and FIG. 4C is a partially enlarged cross-sectional view showing the heat insulation protrusion 29 and its peripheral portion enlarged.

Referring to FIG. 4A, the heat-insulating partition wall 28 has a partition body 25 and a protrusion 22. The partition main body 25 has a flat rectangular parallelepiped shape conforming to the inner shape of the aforementioned outer box 111, and the protrusion 22 protrudes rearward from the rear side surface of the partition main body 25.

Referring to FIG. 4B, the partition body 25 is equipped with a partition heat insulation material 26 inside. The partition heat insulating material 26 is made of foamed resin such as urethane resin. The protrusion 22 has a heat insulation protrusion 29 in which a part of the partition and heat insulation material 26 protrudes rearward. The tip of the protrusion 22 is constituted by the heat-insulating protrusion 29. In addition, the base of the protruding portion 22 is covered by a protective portion 37 made of a synthetic resin plate. By protecting the base of the heat-insulating protrusion 29 with the protective part 37, the heat-insulating protrusion 29 can be reinforced, and therefore the protrusion 22 can be prevented from being damaged during the transportation process, the assembly process, or the like of the heat-insulating partition wall 28.

In FIG. 4C, the heat-insulating protrusion 29 and its peripheral part are shown at the same time, the inner tank 112 is shown by a dotted line, and the outer box 111 is shown by a dotted horizontal line. The protruding portion 22 is inserted into the space between the outer box 111 and the inner container 112 from the insertion port 23 formed in the inner container 112. The tip portion of the protrusion 22 constituted by the heat insulating protrusion 29 is arranged near the outer box 111. Since the heat-insulating protrusion 29 made of foamed resin is arranged near the outer box 111 made of steel plate, the heat exchange via the protrusion 22 is suppressed, and the heat-insulating protrusion 29 can be suppressed from being damaged. Condensation occurs on the outer surface of the outer box 111.

In this embodiment, the heat-insulating protrusion 29 is arranged near the outer box 111, but it is not necessarily limited to this, and the heat-insulating protrusion 29 may abut against the outer box 111.

In the middle of the heat-insulating protrusion 29, a step portion 32 is continuously formed around the heat-insulating protrusion 29 one round. The rear end of the protection portion 37 abuts on the step portion 32. With this structure, even if a forward pushing force is applied to the protrusion 22 (as shown by the arrow), the stepped portion 32 and the rear end of the protection portion 37 are in contact with each other to support the heat insulating protrusion 29, so the protrusion can be suppressed The deformation of 22.

The protective part 37 does not reach the outer box 111, but ends between the inner liner 112 and the outer box 111, for example, at the approximate center of the two. Since the protective part 37 made of a synthetic resin plate with relatively high thermal conductivity is terminated in front of the outer box 111, the heat conduction through the protective part 37 can be suppressed. Therefore, the outer box 111 at the part abutting the protruding part 22 is not affected by the The heat conduction of the protection part 37 is extremely cooled, and thereby the occurrence of dew condensation on the outer surface of the outer box 111 can be suppressed.

FIG. 5 is an exploded perspective view showing the heat insulating partition wall 28 of the refrigerator 10.

The heat-insulating partition wall 28 has an upper cover part 33, a partition heat-insulating material 26, and a lower cover part 34 from the upper side.

The partition heat insulation material 26 is formed by molding foamed resin into a predetermined shape, and has a partition heat insulation body 39 having a substantially flat rectangular parallelepiped shape, and a heat insulation protrusion projecting rearward on the rear surface of the partition heat insulation body 39 29.

The upper cover part 33 is made of a synthetic resin plate molded into a predetermined shape, and has an upper cover main body 38 and a protective upper part 30 protruding rearward from the rear side surface of the upper cover main body 38. The upper cover body 38 covers the upper surface and the upper side surface of the partition heat insulation body 39 of the partition heat insulation material 26. In addition, the protective upper portion 30 covers the upper surface of the base portion of the heat insulating protrusion 29 and the upper side surface of the base portion.

The lower cover portion 34 is made of a synthetic resin plate molded into a predetermined shape, and has a lower cover main body 40 and a protective lower portion 31 protruding rearward from the rear side surface of the lower cover main body 40. The lower cover part 34 covers the lower surface and the lower part of the side surface of the partition heat insulation main body 39 of the partition heat insulation material 26. In addition, the protective lower portion 31 covers the lower surface of the base of the heat insulating protrusion 29 and the lower portion of the side surface of the base.

6A and 6B are diagrams showing the manufacturing method of the refrigerator 10, showing the process of foaming the heat insulating material 113, FIG. 6A is a side sectional view, and FIG. 6B is a cross section in the BB section of FIG. 6A picture. In addition, in the following description of the manufacturing method, reference is also made to the aforementioned FIGS. 1 to 5 as appropriate.

In the manufacturing method of the refrigerator 10 of this embodiment, first, referring to FIG. 3, the outer box 111 and the inner liner 112 are assembled to each other to form the heat-preserving box 11. In addition, the thermal insulation partition wall 28 is assembled to the thermal insulation box 11. At this time, the protrusion 22 of the heat insulation partition wall 28 is inserted into the insertion port 23 formed on the inner surface of the rear side of the heat insulation box 11.

Next, as shown in FIG. 6A, the thermal insulation box 11 is fitted to the foaming mold 35 to fill the foamed resin inside the thermal insulation box 11, that is, the space between the outer box 111 and the inner liner 112. The reason for fitting the heat preservation box 11 to the foaming mold 35 is to prevent the inner container 112 from being deformed due to the foaming pressure. Then, the foaming mold 35 has a shape corresponding to the inner shape of the inner liner 112, and the foaming mold 35 is additionally formed with a partition wall accommodating portion 36 corresponding to the shape of the heat insulating partition wall 28.

When the thermal insulation box 11 is fitted to the foaming mold 35, the thermal insulation partition wall 28 is accommodated in the partition wall accommodating portion 36. At this time, a force that presses the heat-insulating partition wall 28 upward is acting. Here, in order to suppress deformation during foaming, the gap between the heat insulating partition wall 28 and the partition wall accommodating portion 36 is very small. Then, since the side surface of the partition wall accommodating portion 36 is in contact with the side surface of the heat insulating partition wall 28, the resistance when the heat insulating partition wall 28 is inserted into the partition wall accommodating portion 36 increases.

Referring to FIG. 6B, in this embodiment, the protrusion 22 of the heat insulating partition wall 28 is inserted from the insertion port 23 formed in the inner tank 112 until it reaches the outer box 111. Then, a reaction force is obtained because the rear end portion of the protrusion 22 is in contact with the outer box 111.

Specifically, as described above with reference to FIG. 3C, the protrusion 22 protruding rearward from the partition main body 25 of the heat-insulating partition wall 28 is inserted from the insertion port 23 of the inner tank 112 to be formed between the inner tank 112 and the outer case 111 In the space. In addition, the rear end of the protrusion 22 is arranged near the outer box 111. When the heat-insulating partition wall 28 is pressed to the outer box 111 in this process, the rear end of the protruding portion 22 abuts the front surface of the outer box 111, so that the displacement and deformation of the heat-insulating partition wall 28 can be suppressed. The reaction force. In addition, since the protruding portion 22 is reinforced by contacting the rear end of the protective portion 37 with the step portion 32 of the heat-insulating protruding portion 29, a greater reaction force is generated and the heat-insulating partition wall 28 can be suppressed more effectively. Displacement and deformation.

Thereby, when assembling the thermal insulation box 11 to the foaming mold 35, the thermal insulation partition wall 28 will not be displaced inside the thermal insulation box 11, and the thermal insulation partition wall 28 can be prevented from being deformed.

After the thermal insulation box 11 is assembled to the foaming mold 35, the interior of the thermal insulation box 11 is filled with foamed resin such as polyurethane resin. After the foaming process is completed, the thermal insulation box 11 is removed from the foaming mold 35. In addition, as shown in FIG. 2, the refrigerator 10 is manufactured by mounting other constituent devices such as the heat insulation door 18 and the refrigeration cycle 16 to the heat insulation box 11.

7A and 7B are diagrams showing a manufacturing method of a refrigerator 10 of a comparative example, showing a process of foaming the heat insulating material 113, FIG. 7A is a side sectional view, and FIG. 7B is a CC cross section of FIG. 7A Section view in. In the comparative example shown in this figure, the protrusion 22 shown in FIG. 6A etc. is not formed in the heat insulation partition wall 28. As shown in FIG.

As shown in FIG. 7A, when the thermal insulation box 11 is coupled to the foaming mold 35 without the protrusion 22, when the thermal insulation partition wall 28 is inserted into the partition wall accommodating portion 36, a thermal insulation component is generated. The force of pressing the partition wall 28 upwards.

As a result, referring to FIG. 7B, the front surface of the heat insulating partition wall 28 is bent upward. In this case, when the thermal insulation door 19 shown in FIG. 2 is installed on the front surface of the thermal insulation box 11, a gap is formed between the front surface of the thermal insulation partition wall 28 and the thermal insulation door 19. As a result, the refrigerating compartment 12 cannot be closed by the heat insulating door 19, and there is a problem that the cooling efficiency of the refrigerating compartment 12 is reduced.

According to this embodiment, the following main effects can be obtained.

3, since the protruding portion 22 is inserted into the insertion port 23, the bonding strength between the heat insulation partition wall 28 and the heat insulation box 11 can be improved. In addition, as shown in FIG. 6, in the process of inserting the heat-insulating partition wall 28 into the mold to foam the heat-insulating material 113 inside the heat-insulating box 11, the partition body 25 is supported by the protrusion 22, which can suppress The heat-insulating partition wall 28 moves or deforms.

As shown in FIG. 4B, by protecting the connection portion of the protrusion 22 with the protection portion 37, the rigidity of the protrusion 22 can be ensured, and the supporting force of the protrusion 22 can be improved.

As shown in FIG. 5, by forming the protective portion 37 by the protective upper portion 30 and the protective lower portion 31, the protective portion 37 can be formed without requiring additional members.

As shown in FIG. 4C, the protective part 37 made of synthetic resin with high thermal conductivity terminates in front of the outer box 111, so the heat is not conducted through the protective part 37, and can suppress the heat in the part contacting the protruding part 22 Condensation occurred at 111 of the outer box.

As shown in FIG. 6A, when the thermal insulation box 11 is joined to the foaming mold 35 in the foaming process, the protrusion 22 of the thermal insulation partition wall 28 abuts against the inside of the thermal insulation box 11, and the thermal insulation can be In the process of inserting the partition wall 28 into the mold 35, the heat-insulating partition wall 28 is prevented from moving or deforming.

4B, the protrusion 22 is made of the heat insulating protrusion 29 as a foamed resin, even when the end of the protrusion 22 is in contact with the outer box 111, the heat exchange through the protrusion 22 is small. It is also possible to prevent condensation from occurring on the outer box 111 at the portion abutting on the protrusion 22.

The present invention is not limited to the foregoing embodiments, and in addition, various modifications and implementations are possible without departing from the scope of the gist of the present invention. In addition, the aforementioned various forms can be combined with each other.

For example, referring to FIG. 2, in the refrigerator 10 of the present embodiment, the heat-insulating partition wall 28 partitions the storage compartment in the vertical direction, but the heat-insulating partition wall 28 may partition the storage compartment in the left-right direction.

Claims

A refrigerator comprising: a heat preservation box with an outer box and an inner liner, a storage compartment formed inside the heat preservation box, and a heat insulation partition wall for separating the storage compartment; and The heat-insulating partition wall has a partition body and a protruding part protruding rearward from the partition body, an insertion port is formed at a position corresponding to the protruding part of the liner, and the protruding part It is configured to be inserted into the insertion port until it reaches the vicinity of the outer box.
The refrigerator according to claim 1, further comprising a protection part for protecting the protruding part, the protection part being formed from the connecting part of the protruding part and the partition body until reaching the protruding part The middle.
The refrigerator according to claim 2, wherein the thermal insulation partition wall is composed of the following structures: a partition thermal insulation material made of a thermal insulation material, covering the upper cover portion of the partition thermal insulation material from above , And the lower cover part covering the partition and heat insulating material from below;

The protection part is composed of the following structures: a protection upper part formed on the rear side surface of the upper cover part, and a protection lower part formed on the rear side surface of the lower cover part.
The refrigerator according to claim 2, wherein the protection part terminates between the inner container and the outer box.
A refrigerator comprising: a heat preservation box with an outer box and an inner liner, a storage compartment formed inside the heat preservation box, and a heat insulation partition wall for separating the storage compartment; and The heat-insulating partition wall has a partition body and a protruding part protruding rearward from the partition body, an insertion port is formed at a position corresponding to the protruding part of the liner, and the protruding part It is configured to be inserted into the insertion port until it abuts against the outer box.
The refrigerator according to claim 5, wherein the partition body is equipped with a partition heat insulation material inside, the partition heat insulation material has a partition heat insulation body, and a rear surface of the partition heat insulation body A heat-insulating protrusion protruding from the rear; the protrusion has the heat-insulating protrusion, and its end is composed of the heat-insulating protrusion, and the heat-insulating protrusion is in contact with the outer box.
The refrigerator according to claim 6, further comprising a protection part for protecting the heat-insulating protrusion, the protection part being formed from the base of the heat-insulating protrusion until it reaches the heat-insulating protrusion The middle.
The refrigerator according to claim 7, wherein the middle portion of the heat-insulating protrusion continuously surrounds the heat-insulating protrusion to form a step part, and the rear end of the protection part is connected to the step part. Abut.
The refrigerator according to claim 7, wherein the heat insulation partition wall is composed of the partition heat insulation material, an upper cover part and a lower cover part;

The upper cover part has an upper cover main body and a protective upper part protruding rearward from the rear surface of the upper cover main body, and the upper cover main body covers the upper surface of the partitioned heat insulating main body of the partitioned heat insulating material and The upper part of the side surface, the protective upper part covers the upper surface of the base of the heat-insulating protrusion and the upper part of the side surface of the base;

The lower cover part has a lower cover main body and a protective lower part protruding rearward from the rear side surface of the lower cover main body, the lower cover main body covers the lower surface of the partitioned heat insulating main body of the partitioned heat insulating material and A lower part of the side surface, the protective lower part covers the lower surface of the base of the heat-insulating protrusion and the lower part of the side surface of the base;

The protection part is composed of the protection upper part and the protection lower part.
The refrigerator according to claim 5, wherein a groove is formed on the inner surface of the inner liner, and the insertion port is formed in the groove; and the thermal insulation partition wall is fitted into the groove In the above, the protrusion is inserted into the insertion port.