refrigerator

Abstract

The present invention provides a refrigerator that can suppress deformation and displacement of an insulating partition wall during a process of foaming and filling an insulating material. The refrigerator 10 includes: an insulating box body 11 having an outer box 111 and an inner liner 112; a storage compartment formed inside the insulating box body 11; and an insulating partition wall 28 that divides the storage compartment. In addition, a protrusion 22 is formed on the rear side surface of the insulating partition wall 28 to protrude rearward, and the protrusion 22 is inserted into an insertion port 23 formed on the inner liner 112 until it reaches the vicinity of the outer box 111.

Description

Technical Field

[0001] The present invention relates to a refrigerator for cooling and preserving food and the like in a storage compartment, and in particular to a refrigerator having a heat-insulating partition wall for separating the storage compartments. Background Art

[0002] A general refrigerator has a plurality of storage compartments having different internal temperatures, and heat insulating partition walls filled with heat insulating materials are arranged between the storage compartments.

[0003] Reference Figure 8 , to describe the structure for separating each storage compartment recorded in Patent Document 1 as background technology. Figure 8 The refrigerator 1100 according to the background art is shown in a perspective exploded view. The refrigerator 1100 includes a heat preservation box 1101, and a storage compartment is formed inside the heat preservation box 1101.

[0004] The heat preservation box 1101 comprises: an outer box 1102; an inner liner 1103 located inside the outer box 1102; and a heat insulation material 1104 foamed and filled between the outer box 1102 and the inner liner 1103. The storage compartment formed inside the heat preservation box 1101 comprises a refrigerator compartment 1105, a freezer compartment 1106 and a fresh-keeping compartment 1107 from top to bottom.

[0005] The refrigerating chamber 1105 and the freezing chamber 1106 are separated by a heat-insulating partition wall 1108 having a heat-insulating structure. In addition, the freezing chamber 1106 and the fresh-keeping chamber 1107 are separated by a heat-insulating partition wall 1109 having a heat-insulating structure.

[0006] During 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 inside the inner liner 1103. In addition, the outer box 1102 and the inner liner 1103 are foamed and filled with the heat-insulating material 1104. Thereby, the refrigerating chamber 1105 and the freezing chamber 1106 are insulated and divided by the heat-insulating partition wall 1108, and the freezing chamber 1106 and the fresh-keeping chamber 1107 are insulated and divided by the heat-insulating partition wall 1109.

[0007] [Patent Document 1] Japanese Patent Application Publication No. 2018-179407.

[0008] However, in the aforementioned refrigerator 1100, there is a problem in that the heat insulating partition wall 1108 and the heat insulating partition wall 1109 may be deformed or moved during the manufacturing process.

[0009] Specifically, when the 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 insulation box 1101, the insulation box 1101 is combined with the foaming mold. Here, there is the following problem: when the insulation box 1101 is combined with the foaming mold, the insulation partition wall 1108 and the insulation partition wall 1109 will be deformed.

[0010] In addition, there is also the following problem: the connection strength between the heat-insulating partition wall 1108 and the heat-insulating partition wall 1109 and the heat-insulating box body 1101 may not be sufficient. Summary of the invention

[0011] 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 deformation of a heat insulating partition wall in a process of foaming a heat insulating material.

[0012] The present invention provides a refrigerator, comprising: an insulation box having an outer box and an inner liner, a storage compartment formed inside the insulation box, and an insulation partition wall for partitioning the storage compartment; characterized in that the insulation partition wall has a partition body and a protrusion protruding backward from the partition body, an insertion port is formed at a position of the inner liner corresponding to the protrusion, and the protrusion is arranged 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 insulation partition wall into a mold so that the insulation material foams inside the insulation box, the movement or deformation of the insulation partition wall can be suppressed. Specifically, in the process of inserting the insulation partition wall into the mold, the end of the protrusion of the insulation partition wall is located near the outer box, so that when an external force is applied, the insulation partition wall is supported in a manner that the protrusion abuts against the outer box, thereby suppressing the deformation of the insulation partition wall. In addition, the bonding strength between the insulation partition wall and the insulation box can be improved.

[0013] In addition, the refrigerator of the present invention further includes a protection part for protecting the protrusion, wherein the protection part is formed from the connection part between the protrusion and the partition body until reaching the middle part of the protrusion. According to the refrigerator of the present invention, the rigidity of the protrusion can be ensured by protecting the connection part to the middle part of the protrusion with the protection part, thereby preventing the protrusion from being damaged during transportation or assembly of the heat-insulating partition wall.

[0014] In addition, in the refrigerator of the present invention, the heat-insulating partition wall is composed of the following structures: a partition insulation material made of a heat-insulating material, an upper cover covering the partition insulation material from above, and a lower cover covering the partition insulation 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, and a protection lower part formed on the rear side surface of the lower cover. According to the refrigerator of the present invention, the protection part is formed by the upper cover and the lower cover, so the protection part can be formed without the need for additional components.

[0015] In addition, in the refrigerator of the present invention, it is characterized in that the protection portion ends between the inner tank and the outer box. According to the refrigerator of the present invention, the protection portion made of synthetic resin with high thermal conductivity ends in front of the outer box, so that heat is not conducted to the outer box via the protection portion, and condensation can be suppressed at the portion where the outer box abuts against the protrusion.

[0016] The present invention provides a refrigerator, comprising: an insulation box having an outer box and an inner liner, a storage compartment formed inside the insulation box, and an insulating partition wall for partitioning the storage compartment; the insulating partition wall has a partition body and a protrusion protruding backward from the partition body, an insertion port is formed at a position of the inner liner corresponding to the protrusion, and the protrusion is configured to be inserted into the insertion port until it abuts the outer box. According to the refrigerator of the present invention, in the process of inserting the insulating partition wall into a mold so that the insulating material foams inside the insulation box, the movement or deformation of the insulating partition wall can be suppressed. Specifically, in the process of inserting the insulating partition wall into the mold, the end of the protrusion of the insulating partition wall abuts the outer box, so that when an external force is applied, the partition body of the insulating partition wall is supported in a manner that the protrusion abuts the outer box, thereby suppressing the deformation of the insulating partition wall. In addition, the bonding strength between the insulating partition wall and the insulation box can be improved.

[0017] In addition, in the refrigerator of the present invention, a partition insulation material is installed inside the partition body, and the partition insulation material has a partition insulation body and a heat insulation protrusion protruding backward on the rear side surface of the partition insulation body; the protrusion has the heat insulation protrusion, and its end is constituted by the heat insulation protrusion, and the heat insulation 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 insulation protrusion, so that the outer box of the part abutting against the protrusion is prevented from being extremely cooled due to heat conduction, thereby suppressing condensation on the outer surface of the outer box.

[0018] In addition, the ice of the present invention further includes a protection part for protecting the heat insulating protrusion, and the protection part is formed from the base of the heat insulating protrusion to 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 connecting part to the middle of the protrusion with the protection part, thereby preventing the protrusion from being damaged during the transportation or assembly of the heat insulating partition wall; and the protection part ends in front of the outer box without contacting the outer box, so that heat is not conducted to the outer box through the protection part, and condensation can be suppressed at the part where the outer box and the protrusion abut against each other.

[0019] In addition, in the refrigerator of the present invention, a step portion is formed in the middle of the heat insulating protrusion continuously around the heat insulating protrusion, and the rear end of the protection portion abuts against the step portion. With this structure, even if a force pushing forward acts on the protrusion, the step portion and the rear end of the protection portion contact each other to support the heat insulating protrusion, thereby suppressing deformation of the protrusion.

[0020] In addition, in the refrigerator of the present invention, the heat-insulating partition wall is composed of the partition insulation material, an upper cover and a lower cover; the upper cover has an upper cover body and a protective upper part protruding backward on the rear side surface of the upper cover body, the upper cover body covers the upper surface and the upper side surface of the partition insulation body of the partition insulation material, and the protective upper part covers the upper surface of the base of the insulation protrusion and the upper side surface of the base; the lower cover has a lower cover body and a protective lower part protruding backward on the rear side surface of the lower cover body, the lower cover body covers the lower surface and the lower side surface of the partition insulation body of the partition insulation material, and the protective lower part covers the lower surface of the base of the insulation protrusion and the lower side surface of the base; the protective part is composed of the protective upper part and the protective lower part. According to the refrigerator of the present invention, the protective part is formed by the upper cover and the lower cover, so the protective part can be formed without the need for additional components.

[0021] In addition, in the refrigerator of the present invention, a groove is formed on the inner surface of the inner container, the insertion opening is formed in the groove, the heat insulating partition wall is embedded in the groove, and the protrusion is inserted into the insertion opening. According to the refrigerator of the present invention, the installation and positioning of the inner container and the heat insulating partition wall are convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view showing a refrigerator according to an embodiment of the present invention;

[0023] Figure 2 is a side cross-sectional view showing a refrigerator according to an embodiment of the present invention;

[0024] Figure 3is a diagram showing a refrigerator according to an embodiment of the present invention, which shows a perspective view of a heat-insulating box body and a heat-insulating partition wall separately;

[0025] Figure 4A is a perspective view showing a heat insulating partition wall of a refrigerator according to an embodiment of the present invention;

[0026] Figure 4B is a side cross-sectional view showing a heat insulating partition wall of a refrigerator according to an embodiment of the present invention;

[0027] Figure 4C is a schematic diagram showing a heat-insulating partition wall of a refrigerator according to an embodiment of the present invention, wherein an enlarged side cross-sectional view of a heat-insulating protrusion and its surrounding portion is shown;

[0028] Figure 5 is an exploded perspective view showing a heat-insulating partition wall of a refrigerator according to an embodiment of the present invention;

[0029] Fig. 6A is a side cross-sectional view showing a method for manufacturing a refrigerator according to an embodiment of the present invention, showing a step of foaming a heat insulating material;

[0030] Figure 6B It is shown Fig. 6A Cross-sectional view in section BB;

[0031] Fig. 7A is a side cross-sectional view showing a method for manufacturing a refrigerator according to a comparative example, showing a process of foaming a heat insulating material;

[0032] Figure 7B It is shown Fig. 7A Cross-sectional view in section CC;

[0033] Figure 8 It is a perspective exploded view showing the structure of a refrigerator according to the background art.

[0034] Description of reference numerals:

[0035] 10. Refrigerator; 11. Insulated box; 111. Outer box; 112. Inner liner; 113. Insulation material; 115. Cooling chamber; 117. Defrost heating unit; 118. Air duct; 12. Refrigerating chamber; 13. Freezing chamber; 14. Mechanical chamber; 16. Refrigeration cycle; 161. Compressor; 162. Evaporator; 17. Partition; 18. Insulation door; 19. Insulation door; 20. Insulation door; 21. Insulation door; 22. Protrusion; 23. Insertion port; 24. Groove; 25. Partition body; 26. Partition insulation material; 27. Air blower; 28. Insulation Partition wall; 29. ​​Insulation protrusion; 30. Protective upper part; 31. Protective lower part; 32. Step part; 33. Upper cover part; 34. Lower cover part; 35. Foaming mold; 36. Partition wall accommodating part; 37. Protective part; 38. Upper cover body; 39. Partition insulation body; 40. Lower cover body; 1100. Refrigerator; 1101. Insulation box body; 1102. Outer box; 1103. Inner liner; 1104. Insulation material; 1105. Refrigerating chamber; 1106. Freezer; 1107. Fresh-keeping chamber; 1108. Insulation partition wall; 1109. Insulation partition wall. DETAILED DESCRIPTION

[0036] Next, the refrigerator 10 according to the embodiment of the present invention will be described in detail based on the accompanying drawings. In the following description, in principle, the same components are represented by the same figure marks, and repeated descriptions are omitted. In addition, in the following description, each direction of up, down, front, back, left and right is used appropriately, and left and right indicate the left and right when the refrigerator 10 is viewed from the front. In addition, in the present embodiment, the refrigerator 10 is illustrated as a refrigerator having a freezer compartment and a refrigerator compartment, but as the refrigerator 10, a refrigerator having only a freezer compartment or a refrigerator having only a refrigerator compartment may be used.

[0037] Figure 1 Refrigerator 10 is a perspective view of a refrigerator 10 according to an embodiment of the present invention as viewed from the left front. Refrigerator 10 has a heat-insulating box body 11 and a storage compartment formed inside heat-insulating box body 11. As storage compartments, refrigerator 12 and freezer 13 are provided from the upper side. The front opening of refrigerator 12 is closed by heat-insulating door 18 at its upper section, and by heat-insulating door 19 at its lower section. The front opening of freezer 13 is closed by heat-insulating door 20 at its upper section, and by heat-insulating door 21 at its lower section. Heat-insulating door 18 is a revolving door, and heat-insulating door 19, heat-insulating door 20, and heat-insulating door 21 are drawer-type doors.

[0038] Figure 21 is a side cross-sectional view showing the refrigerator 10 as a whole. The heat-insulating box body 11 is composed of the following parts: an outer box 111 made of a steel plate bent into a predetermined shape; an inner liner 112 made of a synthetic resin plate, which is arranged inside the outer box 111; and a heat-insulating material 113 filled between the outer box 111 and the inner liner 112. In addition, the refrigerating chamber 12 and the freezing chamber 13 are insulated and divided by an insulating partition wall 28. The structure of the insulating partition wall 28 is described later with reference to FIG. 4 and the like.

[0039] A cooling chamber 115 is formed at the rear of the freezing chamber 13, and the freezing chamber 13 and the cooling chamber 115 are separated by a partition 17. An evaporator 162 as a cooler is arranged inside the cooling chamber 115. In addition, a machine room 14 is divided and formed at the lower end side and rear of the refrigerator 10, and a compressor 161 is arranged in the machine room 14. The evaporator 162 and the compressor 161 form a refrigerant compression type 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 cold air inside the cooling chamber 115 is cooled by the evaporator 162, and the cold air is blown to each storage room by the blower 27, and the temperature inside each storage room is changed to a specified cooling temperature range. The components constituting the refrigeration cycle 16 are connected to each other through a refrigerant pipe, and the refrigerant pipe 23 is made of a metal pipe such as a copper pipe.

[0040] Inside the cooling chamber 115, a blower 27 is arranged above the evaporator 162. The blower 27 is an axial flow blower or a centrifugal blower, and blows the cold air inside the cooling chamber 115 cooled by the evaporator 162 to the refrigerating chamber 12 and the freezing chamber 13.

[0041] 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 powered on.

[0042] An air supply duct 118 is formed upward from the cooling chamber 115. The air supply duct 118 has an opening for blowing cold air into the refrigerating chamber 12. The cold air that has cooled the refrigerating chamber 12 returns to the cooling chamber 115 via a return air duct (not shown here), thereby cooling the refrigerating chamber 12 to a preset refrigerating temperature range.

[0043] A portion of the blown cold air is blown to the freezing chamber 13 through the opening formed in the upper portion of the partition 17, and the cold air that has cooled the freezing chamber 13 returns to the cooling chamber 115 from the opening formed in the lower portion of the partition 17. The freezing chamber 13 is thereby cooled to a preset freezing temperature range.

[0044] When the refrigerator compartment 12 and the freezer 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, so the defrosting operation of the evaporator 162 is regularly performed. In the defrosting operation, the cooling of the refrigerator compartment 12 and the freezer 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 defrost the evaporator 162. After the defrosting operation is completed, the cooling operation of the refrigerator compartment 12 and the freezer compartment 13 described above is restarted.

[0045] Figure 3 1 is a perspective view showing the heat-insulating box body 11 and the heat-insulating partition wall 28 in a separated state.

[0046] As described above, the storage compartment formed inside the heat-insulating box body 11 is divided into the refrigerator compartment 12 and the freezer compartment 13 by the heat-insulating partition wall 28. The heat-insulating partition wall 28 is assembled with the heat-insulating box body 11 so as to fit into the groove 24 formed on the inner surface of the inner liner 112. The groove 24 is a concave area where the left inner surface, the rear inner surface, and the right inner surface 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 to form an insertion port 23. In the present embodiment, two insertion ports 23 are formed in the groove 24.

[0047] The protrusion 22 is a portion formed by protruding backward from the rear side surface of the heat insulating partition wall 28. In this embodiment, two protrusions 22 are formed on the rear side surface of the heat insulating partition wall 28. When the heat insulating partition wall 28 is assembled to the heat preservation box body 11, the protrusion 22 is inserted into the insertion port 23 of the inner liner 112. In this way, as will be described later, Figure 6B As described above, it is possible to prevent the heat insulating partition wall 28 from being deformed during the foaming process when manufacturing the refrigerator 10. In addition, the heat insulating partition wall 28 can also be assembled to the heat-insulating box body 11 more firmly.

[0048] Figure 4A is a perspective view showing the heat insulating partition wall 28, Figure 4B yes Figure 4A A cross-sectional view of section AA of FIG. Figure 4C It is a partially enlarged cross-sectional view showing the heat insulating protrusion 29 and its surrounding portion in an enlarged manner.

[0049] Reference Figure 4A The heat-insulating partition wall 28 has a partition body 25 and a protrusion 22. The partition body 25 is in a flat rectangular parallelepiped shape that conforms to the inner shape of the outer box 111, and the protrusion 22 protrudes rearward from the rear side surface of the partition body 25.

[0050] Reference Figure 4B, a partition insulation material 26 is installed inside the partition body 25. The partition insulation material 26 is made of a foamed resin such as a polyurethane resin. The protrusion 22 has an insulation protrusion 29, in which a part of the partition insulation material 26 protrudes rearward. The end of the protrusion 22 is composed of the insulation protrusion 29. In addition, the base of the protrusion 22 is covered by a protective portion 37 made of a synthetic resin plate. By protecting the base of the insulation protrusion 29 with the protective portion 37, the insulation protrusion 29 can be strengthened, so that the protrusion 22 can be prevented from being damaged during the transportation process or assembly process of the insulation partition wall 28.

[0051] exist Figure 4C , the heat insulating protrusion 29 and its surrounding parts are shown at the same time, the inner liner 112 is shown by the dotted line, and the outer box 111 is shown by the dotted horizontal line. The protrusion 22 is inserted into the space between the outer box 111 and the inner liner 112 from the insertion port 23 formed in the inner liner 112. The end 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, heat exchange via the protrusion 22 is suppressed, and condensation on the outer surface of the outer box 111 in the portion in contact with the heat insulating protrusion 29 can be suppressed.

[0052] In the present embodiment, the heat insulating protrusion 29 is disposed near the outer box 111 , but the present invention is not limited thereto, and the heat insulating protrusion 29 may be in contact with the outer box 111 .

[0053] A step portion 32 is formed in the middle of the heat insulating protrusion 29 continuously around the heat insulating protrusion 29. The rear end of the protection portion 37 abuts against the step portion 32. With this structure, even if a force pushing forward (as shown by the arrow) acts on the protrusion 22, the rear end of the step portion 32 and the protection portion 37 contact each other to support the heat insulating protrusion 29, so that deformation of the protrusion 22 can be suppressed.

[0054] The protection portion 37 does not reach the outer box 111, but ends between the inner liner 112 and the outer box 111, for example, ends at a substantially central portion of the two. Since the protection portion 37 made of a synthetic resin plate with a relatively high thermal conductivity ends in front of the outer box 111, heat conduction through the protection portion 37 can be suppressed, and the outer box 111 in the portion abutting against the protrusion 22 will not be extremely cooled due to heat conduction with the protection portion 37, thereby suppressing condensation on the outer surface of the outer box 111.

[0055] Figure 5 1 is an exploded perspective view showing the heat insulating partition wall 28 of the refrigerator 10 .

[0056] The heat insulating partition wall 28 has an upper cover portion 33 , a partition insulating material 26 , and a lower cover portion 34 from the upper side.

[0057] The partition heat insulating material 26 is formed by molding a foamed resin into a predetermined shape, and has a partition heat insulating body 39 having a substantially flat rectangular parallelepiped shape and a heat insulating protrusion 29 protruding rearward on the rear side surface of the partition heat insulating body 39 .

[0058] The upper cover portion 33 is made of a synthetic resin plate molded into a predetermined shape, and has an upper cover body 38 and a protective upper portion 30 protruding rearward on the rear side surface of the upper cover body 38. The upper cover body 38 covers the upper surface and the upper side surface of the partition insulation body 39 of the partition insulation material 26. In addition, the protective upper portion 30 covers the upper surface of the base of the insulation protrusion 29 and the upper side surface of the base.

[0059] The lower cover portion 34 is made of a synthetic resin plate molded into a predetermined shape, and has a lower cover body 40 and a protective lower portion 31 protruding rearward on the rear side surface of the lower cover body 40. The lower cover portion 34 covers the lower surface and the lower side surface of the partition insulation body 39 of the partition insulation material 26. In addition, the protective lower portion 31 covers the lower surface of the base of the insulation protrusion 29 and the lower side surface of the base.

[0060] Fig. 6A and Figure 6B 1 is a diagram showing a method for manufacturing the refrigerator 10, showing a process of foaming the heat insulating material 113. Fig. 6A is a side cross-sectional view, and Figure 6B yes Fig. 6A In addition, in the following description of the manufacturing method, reference is also made to the aforementioned Figures 1 to 5 .

[0061] In the manufacturing method of the refrigerator 10 of the present embodiment, first, referring to Figure 3 , the outer box 111 and the inner liner 112 are assembled to each other to form the heat-insulating box body 11. In addition, the heat-insulating partition wall 28 is assembled to the heat-insulating box body 11. At this time, the protrusion 22 of the heat-insulating partition wall 28 is inserted into the insertion port 23 formed on the rear inner surface of the heat-insulating box body 11.

[0062] Next, if Fig. 6A As shown, the heat preservation box 11 is fitted into the foaming mold 35 to fill the foaming resin in the space inside the heat preservation box 11, that is, between the outer box 111 and the inner liner 112. The reason for fitting the heat preservation box 11 into the foaming mold 35 is to prevent the inner liner 112 from being deformed due to the foaming pressure. Thus, the foaming mold 35 has a shape that matches the internal shape of the inner liner 112, and the foaming mold 35 is further formed with a partition wall accommodating portion 36 that matches the shape of the heat insulation partition wall 28.

[0063] When the heat-insulating box body 11 is fitted into the foaming mold 35, the heat-insulating partition wall 28 is accommodated in the partition wall accommodating portion 36. At this time, a force acts to press the heat-insulating partition wall 28 upward. 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. As a result, since the side of the partition wall accommodating portion 36 contacts the side 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 becomes large.

[0064] Reference Figure 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 liner 112 until it reaches the outer box 111. Then, the rear end of the protrusion 22 contacts the outer box 111 to obtain a reaction force.

[0065] Specifically, as mentioned above Figure 3 As described above, the protrusion 22 protruding backward from the partition body 25 of the heat-insulating partition wall 28 is inserted from the insertion port 23 of the inner liner 112 into the space formed between the inner liner 112 and the outer box 111. In addition, the rear end of the protrusion 22 is arranged near the outer box 111. In the case where the heat-insulating partition wall 28 is pressed toward the outer box 111 in this process, the rear end of the protrusion 22 abuts against the front surface of the outer box 111, thereby being able to obtain a reaction force that suppresses the displacement and deformation of the heat-insulating partition wall 28. In addition, since the protrusion 22 is strengthened by abutting the rear end of the protective portion 37 against the step portion 32 of the heat-insulating protrusion 29, a greater reaction force is generated, and the displacement and deformation of the heat-insulating partition wall 28 can be more effectively suppressed.

[0066] Thus, when the heat-insulating box 11 is assembled to the foaming mold 35 , the heat-insulating partition wall 28 is not displaced inside the heat-insulating box 11 , and deformation of the heat-insulating partition wall 28 can be prevented.

[0067] After the heat-insulating box 11 is assembled to the foaming mold 35, a foaming resin such as a polyurethane resin is filled inside the heat-insulating box 11. After the foaming process is completed, the heat-insulating box 11 is removed from the foaming mold 35. Figure 2 As shown, the refrigerator 10 is manufactured by mounting other constituent devices such as the heat-insulating door 18 and the refrigerating cycle 16 to the heat-insulating box body 11 .

[0068] Fig. 7A and Figure 7B 1 is a diagram showing a method for manufacturing a refrigerator 10 according to a comparative example, showing a process of foaming a heat insulating material 113. Fig. 7A is a side cross-sectional view, and Figure 7B yes Fig. 7A In the comparative example shown in this figure, no heat insulation partition wall 28 is formed. Fig. 6AThe protrusion 22 shown in the figure.

[0069] like Fig. 7A As shown, when the heat-insulating box 11 is coupled to the foaming mold 35 without the protrusion 22 , when the heat-insulating partition wall 28 is inserted into the partition wall receiving portion 36 , a force that presses the heat-insulating partition wall 28 upward is generated.

[0070] Results, refer to Figure 7B , the front surface of the heat insulating partition wall 28 is bent upward. Figure 2 When the heat-insulating door 19 shown is installed on the front surface of the heat-insulating box 11, a gap is formed between the front surface of the heat-insulating partition wall 28 and the heat-insulating door 19. As a result, the refrigerating chamber 12 cannot be closed by the heat-insulating door 19, and there is a problem that the cooling efficiency of the refrigerating chamber 12 is reduced.

[0071] According to this embodiment, the following main effects can be obtained.

[0072] Reference Figure 3 Since the protrusion 22 is inserted into the insertion port 23, the bonding strength between the heat insulating partition wall 28 and the heat insulating box body 11 can be improved. In addition, as shown in FIG6 , in the process of inserting the heat insulating partition wall 28 into the mold so that the heat insulating material 113 is foamed inside the heat insulating box body 11, the partition body 25 is supported by the protrusion 22, so that the heat insulating partition wall 28 can be suppressed from moving or deforming.

[0073] like Figure 4B As shown, 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.

[0074] like Figure 5 As shown, by forming the protecting portion 37 by the protecting upper portion 30 and the protecting lower portion 31 , the protecting portion 37 can be formed without requiring an additional member.

[0075] like Figure 4C As shown, the protection portion 37 made of synthetic resin with high thermal conductivity ends in front of the outer box 111, so that heat is not conducted through the protection portion 37, and condensation can be suppressed in the outer box 111 at the portion abutting against the protrusion 22.

[0076] like Fig. 6A As shown, when the insulation box 11 is combined with the foaming mold 35 in the foaming process, the protrusion 22 of the insulation partition wall 28 abuts against the inner side of the insulation box 11, which can prevent the insulation partition wall 28 from moving or deforming during the process of inserting the insulation partition wall 28 into the mold 35.

[0077] Reference Figure 4BSince the protrusion 22 is made of an insulating protrusion 29 which is a foamed resin, even when the end of the protrusion 22 abuts against the outer box 111, condensation on the portion of the outer box 111 abutting against the protrusion 22 can be suppressed because the heat exchange through the protrusion 22 is small.

[0078] The present invention is not limited to the above-mentioned embodiments, and various modifications are possible without departing from the scope of the gist of the present invention. In addition, the above-mentioned various forms can be combined with each other.

[0079] For example, refer to Figure 2 In the refrigerator 10 of the present embodiment, the heat insulating partition wall 28 divides the storage compartment in the up-down direction, but the heat insulating partition wall 28 may also divide the storage compartment in the left-right direction.

Claims

1. A refrigerator, comprising: A heat-insulating box body having an outer box and an inner liner, a storage compartment formed inside the heat-insulating box body, and a heat-insulating partition wall for partitioning the storage compartment; characterized in that the heat-insulating partition wall has a partition body and a protrusion protruding backward from the partition body, an insertion port is formed at a position of the inner liner corresponding to the protrusion, and the protrusion is configured to be inserted into the insertion port until it abuts against the outer box; The protrusion has a heat-insulating protrusion, and the end of the protrusion is formed by the heat-insulating protrusion; a step portion is formed in the middle of the heat-insulating protrusion and continuously surrounds the heat-insulating protrusion; The refrigerator further includes a protection portion for protecting the heat-insulating protrusion, the protection portion being formed from a base portion of the protrusion until reaching a middle portion of the protrusion; The rear end of the protection portion abuts against the step portion.

2. The refrigerator according to claim 1, characterized in that: A partition heat insulating material is installed inside the partition body. The partition heat insulating material includes a partition heat insulating body and a heat insulating protrusion protruding rearward on a rear side surface of the partition heat insulating body. The heat insulating protrusion contacts the outer box.

3. The refrigerator according to claim 2, characterized in that: The heat-insulating partition wall is composed of the partitioning heat-insulating material, an upper cover and a lower cover; The upper cover portion comprises an upper cover body and a protective upper portion protruding rearward on a rear side surface of the upper cover body, wherein the upper cover body covers the upper surface and upper side surface of the partition insulation body of the partition insulation material, and the protective upper portion covers the upper surface of the base of the insulation protrusion and upper side surface of the base; The lower cover portion comprises a lower cover body and a protective lower portion protruding rearward on a rear side surface of the lower cover body, wherein the lower cover body covers the lower surface and the lower side surface of the partition insulation body of the partition insulation material, and the protective lower portion covers the lower surface of the base of the insulation protrusion and the lower side surface of the base; The protection portion is composed of the protection upper portion and the protection lower portion.

4. The refrigerator according to claim 1, characterized in that: A groove is formed on the inner surface of the inner container, and the insertion port is formed in the groove; the heat-insulating partition wall is embedded in the groove, and the protrusion is inserted into the insertion port.

5. The refrigerator according to claim 1, characterized in that: 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 a lower cover portion covering the partition heat-insulating material from below; The protection portion is composed of the following respective structures: a protection upper portion formed on the rear side surface of the upper cover portion, and a protection lower portion formed on the rear side surface of the lower cover portion.

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