WO2018066101A1

WO2018066101A1 - Refrigerator

Info

Publication number: WO2018066101A1
Application number: PCT/JP2016/079745
Authority: WO
Inventors: 俊介齋藤
Original assignee: 三菱電機株式会社
Priority date: 2016-10-06
Filing date: 2016-10-06
Publication date: 2018-04-12
Also published as: CN208541806U; JP6664508B2; JPWO2018066101A1

Abstract

This refrigerator is configured such that the inside thereof surrounded by an inner box and an outer box is filled with a heat insulating material, and the refrigerator is provided with: a refrigerator body, the front surface side of which is open; partition walls for dividing the inside of the refrigerator body to form a plurality of storage compartments; a water supply pump disposed in one of the plurality of storage compartments; an ice maker disposed in a storage compartment different from that in which the water supply tank is disposed; and a water supply pipe extending through a partition wall adjacent to the ice maker and providing communication between the water supply tank and the ice maker. The partition wall adjacent to the ice maker is formed by filling a heat insulating material into the inside of a frame body formed by an upper partition plate and a lower partition plate. The upper partition plate has formed therein a recess having formed in the bottom thereof an opening through which the water supply pipe is extended, and the lower surface of the recess is provided with an annular insertion section protruding toward the lower partition plate and in communication with the opening. The lower partition plate has formed thereon a protrusion having an opening into which the insertion section is fitted. The lower surface of the recess having the insertion section fitted therein is in contact with the upper surface of the protrusion.

Description

refrigerator

The present invention relates to a refrigerator provided with a water supply pipe that communicates a water supply tank and an ice making machine.

Generally, a refrigerator includes a refrigerator body having a storage room such as a refrigeration room, a vegetable room, and a freezing room that is partitioned by a plurality of partition walls. A refrigerator is known in which a water supply tank for storing water is installed in a refrigerator compartment, and an ice making machine for making ice is installed in a freezer compartment. The ice making machine is communicated with the water supply tank by a water supply pipe penetrating a partition wall filled with foam heat insulating material such as urethane foam, and supplied with water from the water supply tank through the water supply pipe.

For example, Patent Document 1 discloses a refrigerator in which openings are formed at the top and bottom of a heat insulating layer, which is a partition wall, and a water supply pipe is passed through the opening. The water supply pipe is fixed to the bottom portion of the heat retaining layer via the first fixing member, and is fixed to the top portion of the warming room via the second fixing member. The first fixing member includes a support column extending from the top to the bottom of the heat insulating layer, a fixed end provided at one end of the support column and fixing the water supply pipe to the bottom of the heat insulating layer and closing the gap of the opening. A support end provided at the other end of the column and supported by the top of the heat insulating layer. The second fixing member supports the water supply pipe from the back side of the refrigerator. The water supply pipe has a convex base in which a portion located inside the heat insulating layer is enlarged in diameter, and the convex base is brought into contact with the top of the heat insulating layer to block the gap of the opening on the top side.

Special table 2013-512212 gazette

Since the refrigerator of patent document 1 is the structure which passed the water supply pipe directly to the opening part formed in the heat insulation layer, a water supply pipe, a 1st fixing member, and a 2nd fixing member shift in position with the foaming pressure of the inject | poured heat insulation material. There is a risk of deformation or deformation, and a gap is formed between the water supply pipe and the opening of the heat insulation layer, and the foamed heat insulating material may leak out of the heat insulation layer. Therefore, this refrigerator is indispensable to have a sealing material that completely closes the gap between the water supply pipe and the opening of the heat retaining layer, and further uses a first fixing member and a second fixing member to increase the number of members and make the structure complicated. There is a problem that costs are high.

The present invention has been made in order to solve the above-described problems, and has a simple and inexpensive structure that can reliably prevent a situation where foam insulation such as urethane foam filled inside a partition wall leaks to the outside. It aims at providing the refrigerator which can be implemented to.

The refrigerator according to the present invention is formed by filling a heat insulating material in an interior surrounded by an inner box and an outer box, and a plurality of storage chambers are formed by partitioning the inside of the refrigerator body with the refrigerator body having an open front side. A partition wall, a water supply tank installed in one of the plurality of storage rooms, an ice maker installed in a storage room different from the water supply tank, and a partition wall adjacent to the ice maker And a water supply pipe that communicates the water supply tank and the ice making machine, and a partition wall adjacent to the ice making machine is thermally insulated inside a frame formed by an upper partition plate and a lower partition plate. The upper partition plate is formed with a recess having an opening for passing the water supply pipe at the bottom, and protrudes toward the lower partition plate on the lower surface of the recess. An annular insertion part that communicates is provided. The lower partition plate has a convex portion having an opening into which the insertion portion is fitted, and the lower surface of the concave portion into which the insertion portion is fitted is brought into contact with the upper surface of the convex portion. It is what.

According to the refrigerator according to the present invention, the partition wall through which the water supply pipe passes is provided with the insertion portion on the lower surface of the concave portion formed in the upper partition plate, and the convex portion is formed on the upper surface of the lower partition plate. It is a simple structure in which an opening for fitting the insertion portion is formed in the lower surface of the concave portion where the insertion portion is fitted in the opening portion is in contact with the upper surface of the convex portion, so that no sealing material is used. It is possible to block the flow of the foam heat insulating material injected into the inside of the frame. Therefore, the refrigerator which concerns on this invention can implement the structure which can prevent reliably the situation where the foaming heat insulating material with which the partition wall was filled leaks from the partition wall.

It is the refrigerator which concerns on Embodiment 1 of this invention, Comprising: It is the perspective view which abbreviate | omitted and showed the door which covers the front opening of a refrigerator main body. It is the refrigerator which concerns on Embodiment 1 of this invention, Comprising: It is the front view which abbreviate | omitted and showed the door which covers the front opening of a refrigerator main body. It is the expanded sectional view which looked at A section indicated in Drawing 2 from the front direction. It is the principal part expanded sectional view which decomposed | disassembled and showed the lower partition wall of the refrigerator which concerns on Embodiment 1 of this invention. It is a refrigerator which concerns on Embodiment 1 of this invention, Comprising: It is the principal part expanded sectional view seen from the side surface direction. It is the B section expanded sectional view instruct | indicated in FIG. It is the refrigerator which concerns on Embodiment 2 of this invention, Comprising: It is the expanded sectional view which looked at the A section designated in FIG. 2 from the front direction.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof is omitted or simplified as appropriate. Moreover, about the structure as described in each figure, the shape, a magnitude | size, arrangement | positioning, etc. can be suitably changed within the scope of the present invention.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing the refrigerator according to Embodiment 1 of the present invention, omitting a door that covers the front opening of the refrigerator main body. FIG. 2 is a front view showing the refrigerator according to the embodiment of the present invention with the door covering the front opening of the refrigerator main body omitted. FIG. 3 is an enlarged cross-sectional view of the portion A indicated in FIG. 2 as viewed from the front. FIG. 4 is an enlarged cross-sectional view of a main part showing the lower partition wall of the refrigerator according to Embodiment 1 of the present invention in an exploded manner. FIG. 5 is a refrigerator according to Embodiment 1 of the present invention, and is an enlarged cross-sectional view of a main part viewed from the side surface direction.

The refrigerator 100 according to Embodiment 1 includes a refrigerator main body 1 having an opening on the front surface and partitioned inside by an upper partition wall 5 and a lower partition wall 6 and provided with a plurality of storage rooms. The refrigerator body 1 includes a sealed space composed of a resin inner box 10 that is the inside of the refrigerator 100 and a steel plate outer box 11 that is the outside of the refrigerator 100. A vacuum heat insulating material (not shown) is installed in the inside sealed by the inner box 10 and the outer box 11 and filled with a foam heat insulating material 16 such as urethane foam. The storage room is composed of a refrigerator compartment 2, a vegetable compartment 3, and a freezer compartment 4 in order from the top. Each storage room is distinguished by a settable temperature zone (set temperature zone). For example, the refrigerator compartment 2 is about 0 ° C. to 4 ° C., the vegetable compartment 3 is about 3 ° C. to 10 ° C., and the freezer compartment 4 is about Each can be set between -16 ° C and -22 ° C. Although illustration in detail is omitted, each storage room is provided with a refrigeration room door, a vegetable room door, and a freezing room door that cover the front opening of the refrigerator body 1 so as to be freely opened and closed. Each door is provided with a gasket for preventing the indoor cold air from flowing out along the inner periphery. In addition, the set temperature of each storage room is not limited to this, and the setting can be appropriately changed according to the installation location and contents.

The refrigerator compartment 2 is arranged at the top of the refrigerator body 1. A recess is formed in the upper partition wall 5 constituting the bottom of the refrigerator compartment 2, and a water supply tank 12 for storing water is detachably stored in the recess. Incidentally, in the refrigerator 100 of Embodiment 1, the water supply tank 12 is arrange | positioned in the front side of one side wall (left side wall in FIG. 1 and 2). For example, the upper partition wall 5 has a configuration in which a foam heat insulating material such as urethane foam is injected into a synthetic resin partition plate. The water supply tank 12 is provided with a pump that pumps up the stored water. The water pumped up by the operation of the pump is sent to the ice making machine 14 through the water supply pipe 13.

The vegetable room 3 is located below the refrigerator room 2. The vegetable compartment 3 and the refrigerator compartment 2 are partitioned by an upper partition wall 5. In recent years, refrigerators with a medium capacity or more have a configuration in which a refrigerator compartment 2 and a vegetable compartment 3 are disposed above the freezer compartment 4 in consideration of user convenience.

The freezer compartment 4 is arranged below the vegetable compartment 3. The freezer compartment 4 and the vegetable compartment 3 are partitioned by a lower partition wall 6. In the freezer compartment 4, an automatic ice making machine 14 that freezes the water supplied from the water supply tank 12 and generates ice is installed immediately below the lower partition wall 6. Note that the automatic ice making machine 14 may be installed in an ice making chamber separately provided in the freezer compartment 4.

The automatic ice making machine 14 includes an ice tray, an ice storage case disposed below the ice tray, and a drive device that is connected to an end of the ice tray and rotates the ice tray. The ice storage case is for storing ice generated in an ice tray.

When the automatic ice making machine 14 starts the ice making operation, the water stored in the water supply tank 12 is pumped up by the operation of the pump, is discharged from the discharge port 13b through the water supply pipe 13, and is supplied to the ice tray. Cold air sent from a cooler (not shown) is supplied to the upper surface side of the ice tray, and water in the ice tray becomes ice by receiving the cold air. The automatic ice making machine 14 is provided with a temperature sensor (not shown) for detecting the temperature in the ice tray. When the temperature sensor detects that ice has been generated in the ice tray, the driving device Drive to rotate the ice tray and the ice is transferred to the ice storage case. The automatic ice making machine 14 may be configured such that the user manually deices the ice without providing a driving device that rotates the ice tray. Further, the automatic ice making machine 14 may be installed in an ice making room provided adjacent to the freezing room 4. The set temperature of the ice making chamber is, for example, about −18 ° C.

As shown in FIG. 1 and FIG. 2, the water supply pipe 13 that connects the water supply tank 12 and the automatic ice making machine 14 is connected to a water supply port formed in the water supply tank 12 and an intermediate part is connected to the vegetable compartment 3. It passes through the inside of the adjacent inner box 10 and outer box 11, and the lower part penetrates the lower partition wall 6 and is arranged at a position directly above the ice tray of the automatic ice making machine 14. The inner box 10 is formed with a through hole for passing the water supply pipe 13 to the inside in the vicinity of the water supply tank 12 and the vicinity of the lower partition wall 6. As shown in FIG. 3, the lower portion of the water supply pipe 13 has an inclined portion 13 a that is gently bent toward the left and right width direction center portions of the refrigerator body 1, and the lower end portion is bent substantially vertically downward to discharge. An outlet 13b is provided.

The water supply pipe 13 may be configured as a single pipe by connecting a plurality of pipes, for example, or may be configured as a single continuous pipe. As an example, the water supply pipe 13 is made of a metal material such as aluminum having a high thermal conductivity and excellent heat resistance, or a synthetic resin material.

Although not shown in detail, a cylindrical guide member for passing an intermediate portion of the water supply pipe 13 is installed in the inner box 10 and the outer box 11 adjacent to the vegetable compartment 3. . Both ends of the guide member have shapes corresponding to the through holes of the inner box 10 formed in the vicinity of the water supply tank 12 and in the vicinity of the lower partition wall 6. The guide member also serves to protect the water supply pipe 13 from the foam heat insulating material 16 filled in the inner box 10 and the outer box 11.

As shown in FIG. 3, the lower partition wall 6 includes a frame body 9 formed of an upper partition plate 7 and a lower partition plate 8, and a foam heat insulating material 90 such as urethane foam is filled inside the frame body 9. It is a configuration. As shown in FIG. 5, the lower partition wall 6 has an inclined surface 60 that is inclined upward toward the rear side in order to secure a space S for storing electrical connectors such as a compressor on the rear side. ing. In addition, a metal plate 61 that attracts a magnet built in a gasket attached to the door is attached to the front side surface of the lower partition wall 6. However, the structure of the lower partition wall 6 is not restricted to the form shown in FIG.

The left and right side surfaces of the frame 9 shown in FIG. 3 overlap a downward flange portion 75 provided along the edge of the upper partition plate 7 and an upward flange portion 82 provided along the edge of the lower partition plate 8. Configured. The upward flange portion 82 is disposed on the inner side of the frame body 9 with respect to the downward flange portion 75, and a stepped portion 84 that abuts the front end surface of the downward flange portion 75 is formed on the outer surface. That is, the refrigerator 100 has a structure in which the upward flange portion 82 and the downward flange portion 75 are overlapped on the left and right side surfaces of the frame body 9 to increase the strength. 9 deformation can be suppressed. Moreover, since the contact surface of the upward flange part 82 and the downward flange part 75 has fixed height in the refrigerator 100, the injected foam heat insulating material 90 leaks from the left and right side surfaces of the frame body 9. Can be reliably prevented.

Although illustration in detail is omitted, the upward flange portion 82 and the downward flange portion 75 may be reversed. That is, the downward flange portion 75 of the upper partition plate 7 is provided on the inner side of the frame body 9 with respect to the upward flange portion 82 of the lower partition plate 8, and the front end surface of the upward flange portion 82 is disposed on the outer surface of the downward flange portion 75. It is the structure which formed the level | step-difference part to abut.

FIG. 6 is an enlarged cross-sectional view of a portion B indicated in FIG. As shown in FIG. 6, a concave and convex fitting structure 15 that fits each other is provided on the lower surface of the upper partition plate 7 and the upper surface of the lower partition plate 8 on the front surface side of the refrigerator body 1.

The fitting structure 15 includes a downward flange portion 76 provided along the front side edge of the upper partition plate 7, and a downward rib 77 provided at a distance closer to the inner side of the frame body 9 than the downward flange portion 76. A groove portion 78 is formed between them, and an upward flange portion 83 provided along the front edge of the lower partition plate 8 is fitted into the groove portion 78. The downward rib 77 desirably has a length Y that is two-thirds or more of the distance Z between the upper partition plate 7 and the lower partition plate 8. The refrigerator 100 can sufficiently prevent the leakage of the foamed heat insulating material 90 injected into the inside of the frame body 9 by ensuring the length Y of the downward rib 77, and can prevent leakage to the outside. The deformation of the frame body 9 due to the foaming pressure of 90 can be suppressed. However, the downward rib 77 is not limited to the length Y. In addition, the fitting structure 15 is not limited to the configuration shown in FIG.

The fitting structure 15 having the above configuration may be provided on the lower surface of the upper partition plate 7 and the upper surface of the lower partition plate 8 on the rear side of the refrigerator body 1. On the rear side of the lower partition wall 6, there is a space S for housing a connector for relaying electrical parts such as a compressor, and the leakage of the foam insulation 90 injected into the inside of the frame body 9 is surely prevented. Because it is necessary to do.

In the refrigerator 100 of the first embodiment, the downward flange portion 75 and the upward flange portion 82 provided on the left and right side surfaces of the frame body 9 described with reference to FIG. You may apply the structure which consists of. Moreover, the refrigerator 100 may apply the fitting structure 15 provided on the front and rear side surfaces of the frame body 9 described based on FIGS. 5 and 6 to the left and right side surfaces of the frame body 9.

As shown in FIGS. 3 and 4, the upper partition plate 7 has a recess 70 through which the lower portion of the water supply pipe 13 passes. The recess 70 has a shape that narrows downward from the upper surface of the upper partition plate 7, and an opening 71 through which the water supply pipe 13 passes is formed at the bottom. In the concave portion 70 of the first embodiment, one side surface (left side in FIG. 3) is an inclined surface 70a along the shape of the inclined portion 13a of the water supply pipe 13, and the other side surface (right side in FIG. 3) is substantially vertical. It is a surface. An annular insertion portion 72 that protrudes vertically downward toward the lower partition plate 8 and communicates with the opening 71 is provided on the lower surface of the recess 70.

The insertion portion 72 has an inner diameter that is slightly larger than the outer diameter of the water supply pipe 13, and allows the lower end portion of the water supply pipe 13 to be inserted. An annular rib 73 protruding toward the lower partition plate 8 is provided on the lower surface of the recess 70 and around the insertion portion 72. A plurality of reinforcing ribs 74 projecting downward are provided on the inclined surface 70 a of the recess 70. Note that the shape of the recess 70 is not limited to the illustrated shape, and may be configured such that the inner peripheral surface is a substantially vertical surface, and is formed by appropriately changing the design in consideration of the actual situation.

As shown in FIGS. 3 and 4, the lower partition plate 8 is formed with a convex portion 80 projecting inward of the frame body 9 on the upper surface, and an opening 81 into which the insertion portion 72 is fitted into the convex portion 80. Is formed. Further, a plurality of reinforcing ribs 85 protruding upward are provided on the upper surface of the lower partition plate 8. In the lower partition plate 8, the insertion portion 72 is fitted into the opening 81, the lower surface of the concave portion 70 is in contact with the upper surface of the convex portion 80, and the convex portion 80 is fitted into the annular rib 73. The front end surface of the annular rib 73 abuts against the upper surface of the lower partition plate 8. It is desirable that the annular rib 73 and the convex portion 80 of the lower partition plate 8 have a shape that can be fitted tightly, but a dimensional error with a slight gap is allowed.

The lower partition wall 6 having the above configuration ensures a long distance to the opening 81 in the contact surface between the annular rib 73 of the upper partition plate 7 and the lower surface of the concave portion 70 and the convex portion 80 of the lower partition plate 8. Therefore, while the foam insulation 90 injected into the inside of the frame body 9 passes through the gap between the annular rib 73 and the lower partition plate 8, the foaming reaction is completed and the situation where it leaks outside the frame body 9 is prevented. can do. In addition, the length to the opening part 81 in the contact surface with the annular rib 73 and the recessed part 70, and the convex part 80 is as an example so that the foaming heat insulating material 90 with fluidity may not reach the opening part 81. What is necessary is just about 5 mm or more. Since the foam heat insulating material 90 such as urethane foam has viscosity, if the above length can be secured, it is possible to reliably prevent the leakage to the outside of the frame body 9.

Therefore, according to the refrigerator 100 according to the first embodiment, the lower partition wall 6 through which the water supply pipe 13 passes is provided with the insertion portion 72 on the lower surface of the recess 70 formed in the upper partition plate 7, and the lower partition plate 8 is a simple structure in which a convex portion 80 is formed on the upper surface of 8 and an opening 81 into which the insertion portion 72 is fitted is formed in the convex portion 80, and the lower surface of the concave portion 70 in which the insertion portion 72 is fitted into the opening 81 is Since it is in contact with the upper surface of the convex portion 80, the flow of the foam heat insulating material 90 injected into the inside of the frame body 9 can be blocked without using a sealing material. Therefore, this refrigerator 100 can implement the structure which can prevent reliably the situation where the foam heat insulating material 90 with which the lower partition wall 6 was filled leaked from the lower partition wall 6 is simple and cheap. Moreover, since this refrigerator 100 forms the path | route of the water supply pipe 13 combining the upper side partition plate 7 and the lower side partition plate 8, it is not influenced by arrangement | positioning of the water supply pipe 13, but from the urethane foam with a high energy-saving effect. A foam insulation 90 can be used.

The upper partition plate 7 of the refrigerator 100 according to the first embodiment is provided with an annular rib 73 that protrudes toward the lower partition plate 8 around the insertion portion 72 on the lower surface of the recess 70. The convex portion 80 of the side partition plate 8 is fitted inside the annular rib 73. Therefore, since the refrigerator 100 can ensure sufficient length to the opening part 81 in the contact surface with the lower surface of the recessed part 70, the cyclic | annular rib 73, and the convex part 80, the foam injected into the inside of the frame 9 The foamed heat insulating material 90 can be blocked from flowing so that the heat insulating material 90 does not reach the opening 81. Therefore, the refrigerator 100 can reliably prevent the foam insulation 90 injected into the inside of the frame 9 of the lower partition wall 6 from leaking to the outside of the lower partition wall 6.

In addition, the refrigerator 100 according to the first embodiment is provided with an uneven fitting structure 15 that fits on the lower surface of the upper partition plate 7 and the upper surface of the lower partition plate 8 on the front side of the refrigerator body 1. Yes. Therefore, since this refrigerator 100 can block the flow of the foam heat insulating material 90 injected into the inside of the frame body 9 by the fitting structure 15, the foam heat insulating material 90 leaks to the outside from the front side surface of the refrigerator body 1. While being able to prevent a situation reliably, the deformation | transformation of the frame 9 by the foaming pressure of the foam heat insulating material 90 can be suppressed.

Embodiment 2. FIG.
Next, the refrigerator which concerns on Embodiment 2 of this invention is demonstrated based on FIG. FIG. 7 is a refrigerator according to Embodiment 2 of the present invention, and is an enlarged cross-sectional view of portion A indicated in FIG. 2 as viewed from the front. In addition, about the structure same as the refrigerator 100 demonstrated in Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

The refrigerator of the second embodiment has a configuration in which the annular rib 73 constituting the refrigerator 100 of the first embodiment is omitted. That is, the refrigerator of the second embodiment closes the gap between the lower surface of the concave portion 70 and the upper surface of the convex portion 80 by bringing the lower surface of the concave portion 70 and the upper surface of the convex portion 80 into contact with each other. The leakage of the foam heat insulating material 90 injected into the inside is prevented. In addition, the length to the opening part 81 in the contact surface of the lower surface of the recessed part 70 and the upper surface of the convex part 80 shall be about 5 mm or more so that the foamable heat insulating material 90 with fluidity may not reach the opening part 81. Is desirable.

Although the present invention has been described above based on the embodiment, the present invention is not limited to the configuration of the embodiment described above. For example, the storage room may be configured to have another storage room in addition to the refrigerator compartment 2, the vegetable compartment 3, and the freezer compartment 4. Moreover, the water supply tank 12 is not limited to being provided in the refrigerator compartment 2, and may be provided in the vegetable compartment 3, for example. In short, it should be noted that the scope of the present invention also includes the scope of various changes, applications, and uses made by those skilled in the art as needed.

1 refrigerator body, 2 refrigerator compartment, 3 vegetable room, 4 freezer room, 5 upper partition wall, 6 lower partition wall, 7 upper partition plate, 8 lower partition plate, 9 frame body, 10 inner box, 11 outer box, 12 Water supply tank, 13 water supply pipe, 13a inclined part, 13b discharge port, 14 automatic ice maker, 15 mating structure, 16 foam insulation, 60 inclined surface, 61 metal plate, 70 recess, 70a inclined surface, 71 opening, 72 Insertion part, 73 annular rib, 74 reinforcing rib, 75, 76 downward flange part, 77 downward rib part, 78 groove part, 80 convex part, 81 opening part, 82, 83 upward flange part, 84 step part, 85 reinforcing rib, 90 foam Insulation, 100 refrigerator.

Claims

A refrigerator body whose inside is surrounded by an inner box and an outer box is filled with a heat insulating material, and whose front side is open,
A partition wall that partitions the interior of the refrigerator body to form a plurality of storage rooms;
A water supply tank installed in one of the plurality of storage rooms;
An ice making machine installed in a storage room different from the water tank;
A water supply pipe that passes through the partition wall adjacent to the ice making machine and communicates the water supply tank and the ice making machine,
The partition wall adjacent to the ice making machine is formed by filling a heat insulating material inside a frame formed by an upper partition plate and a lower partition plate,
The upper partition plate is formed with a concave portion having an opening for passing the water supply pipe at the bottom, and an annular insertion portion protruding toward the lower partition plate on the lower surface of the concave portion and communicating with the opening. Provided,
The lower partition plate is formed with a convex portion having an opening into which the insertion portion is fitted,
The refrigerator, wherein a lower surface of the concave portion into which the insertion portion is fitted is in contact with an upper surface of the convex portion.
The upper partition plate is provided with an annular rib that protrudes toward the lower partition plate on the lower surface of the recess and around the insertion portion.
The refrigerator according to claim 1, wherein a convex portion of the lower partition plate is fitted into the annular rib.
The refrigerator according to claim 1 or 2, wherein a concave-convex fitting structure is provided on the lower surface of the upper partition plate and the upper surface of the lower partition plate on the front side of the refrigerator body.