KR20140109628A - A refrigeraotr and a manufacturing method the same - Google Patents

Abstract

The present invention relates to a refrigerator. The refrigerator according to an embodiment of the present invention comprises a cabinet having a storage room; a first door arranged in front of the storage room, and having an opening; and a second door coupled to the opening, able to rotate, and closing the opening, wherein the first door includes a front member made of metal, and having the opening defined therein; side members coupled to both sides of the front member; a rear member coupled to the rear sides of the side members, having a sealing mounting groove, and made of synthetic resin; a sealing member coupled to the sealing mounting groove; and a foaming insulation material filling an inner space defined by the front member, the side members, and the rear member.

Description

[0001] A refrigerator and a manufacturing method thereof [0002]

An embodiment of the present invention relates to a refrigerator and a manufacturing method thereof.

Generally, a refrigerator is a device capable of cooling a storage room, that is, a freezing room or a refrigerating room while repeating a refrigeration cycle, so that food can be kept fresh for a predetermined period of time.

The refrigerator includes a main body defining a storage chamber and a door selectively shielding the opened front face of the main body. The storage room is filled with a stored product, and the user can open the door to take out the stored product.

Meanwhile, the refrigerator may be equipped with a home bar device. The home-bar apparatus includes an opening formed by cutting at least a portion of the refrigerator, a basket for storing food frequently provided at the rear of the opening, and a home-bar door for shielding the opening.

The present applicant has previously filed a patent application (Application No. 10-2005-0016708) with respect to a home bar device provided in a refrigerator.

According to such a conventional refrigerator, the opening of the home bar device is small, which limits the amount of food that can be stored in the basket.

In addition, there is a problem that the frame constituting the opening is made of plastic and is easily contaminated by food and is not easily cleaned.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a refrigerator having a storage room in a door and a method of manufacturing the same.

According to an aspect of the present invention, there is provided a refrigerator comprising: a cabinet having a storage compartment; A first door disposed in front of the storage chamber and having an opening; And a second door rotatably coupled to the opening and closing the opening, wherein the first door is made of a metal material and includes a front member that defines the opening inside; A side member coupled to both sides of the front portion; A rear member coupled to the rear side of the side member and made of a synthetic resin material to form a sealing seat; A sealing member coupled to the sealing seating groove; And a foamed insulating material filled in the inner space defined by the front surface member, the side surface member, and the rear surface member.

In another embodiment, the refrigerator includes a cabinet having a storage compartment; A first door disposed at a front side of the storage compartment and configured by combining a plurality of door frame assemblies; And a second door pivotally coupled to the opening to close the opening. The door frame assembly includes a front member having a front surface and a side surface that is bent to both sides of the front surface, the front surface being formed of a metal material. A rear member coupled to a rear side of the front member and made of a synthetic resin material to form a sealing seat; A sealing member coupled to the sealing seating groove; And a foam insulating material filled in an inner space defined by the front and rear members.

According to another aspect of the present invention, there is provided a method of manufacturing a refrigerator including: preparing a side member of a door using a rectangular frame; Fabricating a front member having an opening by machining a metal plate; Combining the side member and the front member; Injecting a foaming agent into the inner space formed by the side member and the front member; And a step of covering the rear member with the side member, wherein the rear member is coupled to the side member by the foaming agent.

According to an embodiment of the present invention, there is provided a refrigerator including a first door forming an opening and a storage chamber at a rear side of the opening, and a second door provided in front of the first door to shield the opening, There is an advantage that the storage space of the storage can be increased.

In addition, the front portion of the first door is made of a metal plate, and has an advantage of being beautiful in appearance, being less likely to be contaminated by food, and being easy to clean.

In addition, since the front portion of the first door forms the same plane, and the second door is provided with the sealing member coupled to the front portion of the first door, the leakage of cold air through the joining portion of the first door and the second door Can be prevented.

Also, since the first door can be formed by forming a front surface by machining a metal plate, combining the side portions of the metal material and then joining the rear portion made of synthetic resin, the manufacturing method of the refrigerator can be simplified and facilitated.

In another embodiment, a plurality of frame assemblies may be formed by combining a front surface of a metal material and a rear surface of a synthetic resin material, and then a plurality of frame assemblies may be combined to form a first door. And it is advantageous that it can be facilitated.

1 is a perspective view of a refrigerator according to an embodiment of the present invention.
2 is a view showing a part of a refrigerator in a state in which a second door is opened according to an embodiment of the present invention.
3 is a plan view of a refrigerator according to an embodiment of the present invention.
4 is a cross-sectional view taken along line I-I 'of FIG.
5 is an exploded perspective view showing a configuration of a first door according to a first embodiment of the present invention.
6 is a sectional view showing a state in which the first door is closed according to the first embodiment of the present invention.
7 is a flow chart showing a method of manufacturing a first door of a refrigerator according to a first embodiment of the present invention.
8 is an exploded perspective view showing a configuration of a first door according to a second embodiment of the present invention.
9 is a flow chart showing a method of manufacturing a first door of a refrigerator according to a second embodiment of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. It is to be understood, however, that the spirit of the invention is not limited to the embodiments shown and that those skilled in the art, upon reading and understanding the spirit of the invention, may easily suggest other embodiments within the scope of the same concept.

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

Referring to FIG. 1, a refrigerator 1 according to an embodiment of the present invention includes a cabinet or main body 10 forming a storage room, and a plurality of doors selectively opening the storage room. The storage chamber includes a refrigerating chamber formed in the upper portion of the main body 10 and a freezing chamber formed in the lower portion of the main body 10.

The doors include refrigerating chamber doors (21, 100) for blocking the refrigerating chamber and freezing chamber doors (31, 35) for blocking the freezing chamber.

The refrigerator compartment doors 21 and 100 are provided with a first refrigerator compartment door 21 rotatably provided at one side of the main body 10 and a second refrigerator compartment door 100 rotatably provided at the other side of the main body 10, . The first refrigerator compartment door (21) and the second refrigerator compartment door (100) may be arranged laterally.

One side of the first refrigerator compartment door 21 and one side of the second refrigerator compartment door 100 are disposed to be in contact with each other when the first refrigerator compartment door 21 and the second refrigerator compartment door 100 are closed, The refrigerating chamber may be shielded from the outside.

The first refrigerator compartment door (21) is provided with a first handle (23) capable of holding the user. The second door (100) is provided with a second handle (25). The user can open the first refrigerator compartment door 21 or the second refrigerator compartment door 100 by operating the first handle 23 or the second handle 25. [

The second refrigerator compartment door 100 is provided with a pressing part 26 provided on the second handle 25 and capable of being pressed and a pressing part 26 provided on the rear side of the pressing part 26 and coupled to the second refrigerator compartment door 100 A latch assembly 28 is provided.

The second refrigerator compartment door 100 includes a first door 110 and a second door 150. The first and second doors 110 and 150 may be opened together or only the second door 150 may be opened depending on whether the pushing portion 26 is operated or not.

In detail, the latch assembly 28 includes a latch member (not shown) for selectively coupling the first door 110 and the second door 150.

When the second handle 25 is pulled in a state where the pressing portion 26 is depressed, the engaging action of the engaging member is released and only the second door 150 is opened. On the other hand, when the second handle 25 is pulled in a state in which the pressing portion 26 is not operated, the engaging action of the engaging member is performed so that the first door 110 and the second door 150 together Can be opened.

A main illuminator 15 for illuminating a storage room inside the main body 10 when the first refrigerator compartment door 21 or the second refrigerator compartment door 100 is opened is provided in the main body 10 . When the main illuminating device 15 is operated, the storage room is kept bright, so that the stored or retrieved storage can be easily performed.

The freezer compartment doors 31 and 35 are provided with an upper freezer compartment door 31 which is provided so as to cover the upper portion of the freezer compartment and can be pulled forward and a lower freezer compartment door 35 which is provided to be able to draw out the lower portion of the free compartment, ).

On the rear side of the freezer compartment doors 31 and 35, a basket (not shown) in which the stored contents can be stored can be provided.

Hereinafter, the construction of the second refrigerator compartment door 100 will be described in detail. Hereinafter, for convenience, the second refrigerator compartment door 100 is referred to as a " refrigerator compartment door "or a" door assembly ".

3 is a plan view of a refrigerator according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of the refrigerator according to the embodiment of the present invention. Sectional view taken along line I '.

Referring to FIGS. 2 and 3, the refrigerator compartment door 100 according to the embodiment of the present invention includes a first door 110 and a second door 150 that are rotatably provided. The first door 110 is rotatably coupled to the main body 10 and the second door 150 is rotatably coupled to the first door 110.

In detail, a hinge device 160 coupled to the first door 110 and the second door 150 is provided at an upper portion and a substantially central portion of the main body 10.

The hinge device 160 includes a first fixing part 161 provided to the main body 10, a first bracket 162 extending forward from the first fixing part 161, And a first hinge shaft 163 coupled to the first door 110 and providing a pivotal center of the first door 110.

The first door 110 may be rotated forward in a state of being coupled to the first hinge shaft 163 to open the refrigerating chamber.

A first door switch 18 is provided between the rear surface of the first door 110 and the front surface of the main body 10 to apply an electrical signal for operation of the main body lighting apparatus 15. For example, the first door switch 18 may protrude forward from the front surface of the main body 10.

When the first door 110 is closed, the first door switch 18 is pushed down to be turned off, thereby turning off the main lighting device 15. On the other hand, when the first door 110 is opened, the first door switch 18 is turned on, so that the main illuminator 15 can be turned on.

The hinge device 160 is provided with a second fixing part 164 provided to the first door 110 and a second bracket 165 extending forward from the second fixing part 164, And a second hinge shaft 166 coupled to the bracket 165 and providing a pivotal center of the second door 150.

The second door 150 may be rotated forward while being coupled to the second hinge shaft 166 to open or close the opening 112 of the first door 110.

A second door switch 118 is provided between the rear surface of the second door 150 and the front surface of the first door 110 to apply an electrical signal for operation of the lighting device 180 do. For example, the second door switch 118 may protrude forward from the front surface of the first door 110.

When the second door 150 is closed, the second door switch 118 is pushed and turned off, so that the lighting device 180 can be turned off. On the other hand, when the second door 150 is opened, the second door switch 118 is turned on, so that the lighting device 180 can be turned on.

The first door 110 includes a forwardly facing door front portion 110a and a substantially rectangular opening 112 as an inner space of the front portion 110a. The first door 110 may have a substantially square frame shape by the front portion 110a and the opening portion 112. [

Specifically, the first door 110 includes a door side surface portion 112a, a door bottom surface portion 112b, and a door top surface portion 112c that define the opening portion 112. The door side surface portion 112a is provided on both sides of the opening portion 112.

The door side surface portion 112a, the door bottom surface portion 112b and the door top surface portion 112c are portions extending in the direction or the back and forth direction that define the thickness of the first door 110, And constitutes a side surface.

The front surface portion 110a of the first door 110 and the door side surface portion 112a and the bottom surface portion 112b of the door and the top surface portion 112c of the door may be formed of a plurality of members constituting the first door 110, May be formed by the front member 210 (see Fig. 5). The description related to this will be given later with reference to the drawings.

The second door (150) is configured to shield the opening (112).

The second door 150 is formed with an outdoor 151 forming an outer surface of the second door 150 and a rear surface of the second door 150 and having a size corresponding to the opening 112, And a door liner 152 is formed.

The second door 150 includes a heat insulating portion 155 provided in an inner space formed by the outdoor 151 and the door liner 152. The heat insulating portion 155 may be solidified after the liquid insulating material is foamed, and may be made of a styrofoam material.

The outdoor 151 forms front and side outer surfaces of the second refrigerator compartment door 100 in a state in which the second door 150 is closed. That is, the outdoor unit 151 forms the front and side surfaces of the second door 150.

The door liner 152 forms an inner surface of the second door 150 in a state in which the second door 150 is opened. The door liner 152 includes a protrusion 152a protruding by a predetermined length and inserted into the inner surface of the opening 112.

In detail, the protrusion 152a is formed in a substantially rectangular shape along the rim of the outer surface of the door liner 152. [ The protrusion 152a may be inserted into the opening 112 of the first door 110. [

The second door 150 is provided on the outer side of the rim 152a of the door liner 152 and is provided with a sealing member for preventing the outflow of cold air between the first door 110 and the second door 150. [ (154). In detail, the sealing member 154 is provided in a substantially rectangular shape adjacent to the outer side of the protrusion 152a. For example, the sealing member 154 may be disposed in contact with the outer surface of the protrusion 152a.

When the second door 150 is closed, the sealing member 154 is positioned on the outer side of the opening 112 of the first door 110 and the edge 152a of the door liner 152 As shown in FIG.

In the opening 112, a plurality of door baskets 120 are mounted. The plurality of door baskets 120 may be spaced apart from each other and arranged in a longitudinal direction. The second door 150 may open or shield the front of the plurality of door baskets 120.

The lowermost door basket 120 of the plurality of door baskets 120 may be seated on the door bottom portion 112b or adjacent to the door bottom portion 112b. The uppermost door basket 120 of the plurality of door baskets 120 may be disposed at a position spaced downward from the door upper surface portion 112c.

The door basket 120 may be arranged to be supported by door side portions 112a on both sides.

An illuminating device 180 is installed at one side of the door upper surface portion 112c to illuminate the door baskets 120 with light.

The front end of the opening 112 includes a reflecting member 115 that blocks the light emitted from the lighting device 180 from being directed forward. The reflective member 115 may extend from one door side portion 112a of the opening 112 to the other side surface portion 112a.

The reflective member 115 is disposed to cover at least a part of the front surface of the door basket 120 and may be coated with a predetermined metal material so as to reflect light. A plurality of the reflective members 115 may be provided in the vertical direction corresponding to the number of the door baskets 120.

FIG. 5 is an exploded perspective view showing a configuration of a first door according to a first embodiment of the present invention, and FIG. 6 is a sectional view showing a state in which a first door is closed according to a first embodiment of the present invention.

5 and 6, the first door 110 according to the first embodiment of the present invention includes a front member 210, a side member 220, and a rear member 230 coupled to each other.

In detail, the front member 210 includes a front portion 211 forming a door front portion 110a of the first door 110, a front opening 215 defined inside the front portion 211, . The front opening 215 can be understood as a portion forming the opening 112. [

The front opening 215 is defined by an inner side surface portion 212 and an inner lower surface portion 213 and an inner upper surface portion 214. The inner side surface portion 212 and the inner side surface portion 213 and the inner upper surface portion 214 can be understood as portions forming the door side surface portion 112a, the door bottom surface portion 112b and the door top surface portion 112c have. The inner side surface portion 212 and the inner side surface portion 213 and the inner upper surface portion 214 may be collectively referred to as an "inner side portion ".

The front member 210 may be made of a metal plate, for example, aluminum or stainless steel. The front member 210 may be formed by bending at least a portion of the metal plate backward after the front opening 215 is formed in the metal plate. The rearward bent portion forms the inner side surface portion 212, the inner bottom surface portion 213, and the inner top surface portion 214. [

The side member 220 has a substantially rectangular frame structure and may be coupled to both sides of the front member 210.

In detail, the side member 220 includes a side coupling part 222 coupled to both sides of the front part 211, a lower coupling part 223 coupled to the lower side of the front part 211, And an upper surface coupling portion 224 coupled to the upper side of the main body 211.

The side member 220 may be formed by extruding a predetermined metal to produce an extrusion member, and then joining a plurality of extrusion members. The predetermined metal may include aluminum or stainless steel.

In detail, the side joint portion 222, the bottom joint portion 223, and the top surface joint portion 224 may be formed by coating a predetermined paint after joining the extrusion members, respectively.

When the side member 220 is coupled to the front member 210, the front member 210 and the side member 220 define a predetermined internal space. In the inner space, a heat insulating portion 227 is provided. The heat insulating portion 227 may be solidified after the liquid insulating material is foamed, and may be made of a styrofoam material. The heat insulating portion 227 may be referred to as "foam insulation."

Meanwhile, the lighting device 180 may be coupled to the upper surface coupling portion 224. The illumination device 180 may irradiate light toward the opening 112 in a state where the illumination device 180 is installed in the illumination mounting part 226. An opening (not shown) for transmitting light of the lighting device 180 downward may be formed on at least a portion of the inner upper surface portion 214.

At the rear portion of the first door 110, a rear member 230 is provided. The rear member 230 may be made of synthetic resin or plastic material.

In detail, after the heat insulating portion 227 is disposed in a state where the front member 210 and the side member 220 are coupled to each other, the rear member 230 covers the heat insulating portion 227, And may be coupled to the rear side of the side member 210 and the side member 220.

The rear member 230 includes a protrusion 231 adapted to fit inside the main body 10. The protrusions 231 are provided on both sides of the rear member 230 and protrude rearward from one side of the rear member 230.

The protrusions 231 on both sides may be arranged to be fitted on the inner surface of the main body 10 in a state in which the first door 110 is closed.

On the rear side of the rear member 230, a sealing member 240 is provided. The sealing member 240 is disposed so as to surround the outside of the portion where the protrusion 231 and the main body 10 are coupled to prevent cold leakage. The sealing member 240 is called a "first sealing member" and the sealing member 154 provided for the second door 150 is called a "second sealing member".

A sealing seat 233 to which the sealing member 240 is coupled is formed on the rear member 230. The sealing seating part 233 may be formed in a shape of a "groove " by being recessed in a size corresponding to the sealing member 154. [

The first door 110 includes one or more door baskets 120. The door basket 120 is supported by the opening 112 and extends rearward and may be coupled to the inside of the rear member 230.

7 is a flow chart showing a method of manufacturing a first door of a refrigerator according to a first embodiment of the present invention. A method of manufacturing the first door 110 according to the present embodiment will be described with reference to FIG.

First, the side member 220 is manufactured using a rectangular frame.

The rectangular frame is formed by combining a plurality of extrusion members by manufacturing a plurality of extrusion members by extruding a predetermined metal member. For example, as shown in FIG. 5, the side member 220 can be manufactured by joining four extrusion members in a rectangular shape.

Other embodiments are suggested. The rectangular frame may be formed by integrally molding a synthetic resin (S11).

Then, the front member 210 is manufactured.

In detail, a predetermined metal plate is processed or perforated to form a front opening 215, and at least a part of the metal plate is bent along the rim of the front opening 215 to form inner side portions 212, 213 and 214. That is, it can be understood that the inner side portions 212, 213 and 214 form the rim of the opening 112.

For example, as shown in Fig. 5, the inner side surface portion 212 is bent rearward in four directions of the front opening portion 215 to form the inner side surface portion 213 and the inner side surface portion 214 do. The inner side portions 212, 213, and 214 may be referred to as edge portions of the front opening 215 (S12).

Thereby joining the manufactured side member 220 and the front member 210 together. At this time, the rectangular side member 220 may be coupled to the rim of the front portion 211 of the front member 210.

When the side member 220 and the front member 210 are coupled to each other, the side member 220 and the front member 210 form a predetermined internal space, and a liquid foaming agent is injected or filled into the internal space (S13, S14).

The rear member 230 is coupled to the rear side of the front member 210 and the side member 220. In detail, the rear member 230 is disposed to cover the front member 210 and the side member 220 in a state where the liquid foam agent is filled. In the process of solidifying the liquid foam agent, 210 and the rear side of the side member 220. When the liquid foaming agent solidifies, the foaming agent forms a heat insulating portion 227 (S15).

According to this manufacturing method, the first door 110 having the front surface portion 110a made of a metal and the opening portion 112 defined inside the front surface portion 110a can be easily manufactured.

Hereinafter, the structure of the first door and the manufacturing method thereof according to the second embodiment of the present invention will be described. The present embodiment differs from the first embodiment in the construction of the finished product of the first door, but differs in its detailed configuration and manufacturing method, and focuses on differences, and the same parts as those of the first embodiment are described in the first embodiment And reference numerals.

FIG. 8 is an exploded perspective view showing a configuration of a first door according to a second embodiment of the present invention, and FIG. 9 is a flowchart illustrating a method of manufacturing a first door of a refrigerator according to a second embodiment of the present invention.

Referring to FIG. 8, four door frame assemblies 300 are coupled to the first door 110 according to the second embodiment of the present invention. The four door frame assemblies 300 may be vertically coupled to each other to form a rectangular first door having an opening.

When the four door frame assemblies 300 are coupled to each other, the first door 110 having the door front part 110a and the opening 112 defined inside the door front part 110a, May be provided.

Since the four door frame assemblies 300 have the same configuration, one door frame assembly 300 will be described herein and the remaining three door frame assemblies 300 will be described.

The door frame assembly 300 includes a front member 310 and a rear member 330. The front member 310 forms a front surface and an inner surface of the first door 110, And a heat insulating portion 327 provided in the inner space formed by the front member 310 and the rear member 330.

The front member 310 may be made of a metal material such as stainless steel or aluminum.

The front member 310 includes a front portion 311 disposed to form a front surface of the first door 110 and side portions 312 and 313 extending from left and right sides of the front portion 311, 311 extending from the upper and lower ends thereof.

An inner side portion 312 extending rearward from one side end of the front portion 311 and disposed to form an inner side surface of the first door 110 and a second side portion 312 of the front portion 311, And an outer side portion 313 extending rearward from the end portion and arranged to form an outer side surface of the first door 110. [

The top and bottom portions 314 are provided on both sides of the front portion 311 to cover the top and bottom surfaces of the door frame assembly 300.

The front face portion 311, the inner side face portion 312 and the outer side face portion 313 may have a cross section of the front face portion 310 as a whole.

The rear member 330 is made of synthetic resin or plastic material and is configured to be coupled to the inner side surface portion 312 and the outer side surface portion 313. In detail, the rear member 330 is formed with a seating groove or a recessed groove so that the protrusion 331 protruding rearward from one surface of the rear member 330 and the sealing member 240 (see FIG. 5) And a sealing seat portion 333 is provided.

The protrusion 331 may be arranged to be fitted to the inner surface of the main body 10 in a state where the first door 110 is closed.

The heat insulating portion 327 may be formed by solidifying after filling the liquid foam agent.

For example, after the liquid foaming agent is filled in the inner space of the front member 310, the rear member 330 may be coupled to the front member 310. Further, in the process of solidifying the liquid foaming agent, the rear member 330 may be bonded to the front member 310 by the foaming agent.

As another example, the liquid foaming agent may be filled in the inner space formed by the front member 310 and the rear member 330 after the front member 310 and the rear member 330 are coupled. When the foaming agent solidifies, the heat insulating portion 327 may be formed.

A plurality of door frame assemblies 300 manufactured in this manner are provided, and as shown in FIG. 8, four door frame assemblies 300 may be combined to form a rectangular door.

A method of manufacturing the first door 110 according to the present embodiment will be described with reference to FIG.

First, the manufacturing process of the front member 310 is performed.

In detail, the metal plate is processed so that the front member 310 includes the front portion 311, the inner side portions 312 and 313, and the upper and bottom portions 314. That is, after the metal plate is cut to correspond to the length of the front part 311, both sides of the metal plate are bent to form the inner side parts 312 and 313. The upper and lower portions 314 may be formed by cutting and bending the upper and lower metal plates of the portion corresponding to the front portion 311 (S21).

Then, the manufacturing process of the rear member 330 is performed. In detail, the synthetic resin material is processed to form the projecting portion 331 and the seal seating portion 333 (S22).

The rear member 330 is coupled to the rear side of the front member 310 and the heat insulating portion 327 is formed in the inner space formed by the front member 310 and the rear member 330, ).

As described above, in order to form the heat insulating portion 327, the liquid foaming agent may be filled before the front member 310 and the rear member 330 are coupled, And may be solidified (S23, S24).

The four door frame assemblies 300 manufactured in this manner are vertically coupled to each other to manufacture a first door 110 having an opening 112 (S25).

According to this manufacturing method, the method of manufacturing and assembling the door frame assembly 300 can be easily implemented.

1: Refrigerator 10: Body
15: main body lighting device 18: first door switch
21: first refrigerator compartment door 26:
23, 25: handle 28: latch assembly
31: upper freezing chamber door 35: lower freezing chamber door
100: second refrigerator compartment door 110: first door
112: opening 115: reflective member
120: door basket 150: second door
152: door liner 154: sealing member
180: illumination device 210: front member
220: side member 227:
230: rear member 240: sealing member

Claims (15)

A cabinet having a storage compartment;
A first door disposed in front of the storage chamber and having an opening; And
A second door rotatably coupled to the opening and closing the opening,
In the first door,
A front member made of a metal material and defining the opening portion inside;
A side member coupled to both sides of the front portion;
A rear member coupled to the rear side of the side member and made of a synthetic resin material to form a sealing seat;
A sealing member coupled to the sealing seating groove; And
And a foam insulating material filled in an inner space defined by the front surface member, the side surface member, and the rear surface member. The method according to claim 1,
In the front member,
A front part forming a front appearance; And
And an inner side portion extending in one direction from the front portion,
Wherein the opening is defined by the inner side surface portion. The method according to claim 1,
Wherein the side member has a rectangular frame structure. The method of claim 3,
In the side member,
A side coupling portion coupled to both sides of the front portion;
A bottom engaging portion coupled to a lower side of the front portion; And
And an upper surface coupling portion coupled to an upper side of the front surface portion. The method of claim 3,
Wherein the side member is made of one of a metal material of aluminum and stainless steel. 6. The method of claim 5,
The side member
And the metal material is extruded. The method according to claim 1,
In the rear member,
And a protrusion formed on one surface of the rear member so as to protrude in one direction,
Wherein the protrusion is inserted into the inner surface of the cabinet when the first door is closed. The method according to claim 1,
In the second door,
An outdoor forming a front or side exterior;
A door liner coupled to a rear side of the outdoor and having a protrusion protruded to be inserted into the opening; And
And a sealing member disposed on the outer side of the protrusion to prevent the outflow of cool air between the first door and the second door. A cabinet having a storage compartment;
A first door disposed at a front side of the storage compartment and configured by combining a plurality of door frame assemblies; And
A second door rotatably coupled to the opening and closing the opening,
In the door frame assembly,
A front member made of a metal material and having a front portion and side portions bent to both sides of the front portion;
A rear member coupled to a rear side of the front member and made of a synthetic resin material to form a sealing seat;
A sealing member coupled to the sealing seating groove; And
And a foam insulating material filled in an inner space defined by the front surface member and the rear surface member. 10. The method of claim 9,
Four door frame assemblies are provided,
Wherein four door frame assemblies are vertically coupled to form a first door having an opening. 10. The method of claim 9,
In the side surface portion,
An inner side portion extending from one end of the front portion and forming an inner side surface of the first door; And
And an outer side portion extending from the other end of the front portion and forming an outer side surface of the first door. Fabricating a side member of a door using a rectangular frame;
Fabricating a front member having an opening by machining a metal plate;
Combining the side member and the front member;
Injecting a foaming agent into the inner space formed by the side member and the front member; And
And covering the rear member with the side member, wherein the rear member is coupled to the side member by the foaming agent. 13. The method of claim 12,
In the step of fabricating the front member,
And bending at least a part of the metal plate in one direction so as to form a rim of the opening. 13. The method of claim 12,
In the step of fabricating the front member,
A method of manufacturing a refrigerator, comprising the steps of: extruding a metal material to produce an extruded member; and joining a plurality of extruded members to form the rectangular frame. 13. The method of claim 12,
Wherein the front member includes a front portion and a plurality of inner side portions bent in one direction from the front portion and defining the opening,
Wherein the side member is coupled to the rim of the front portion.

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