Refrigerator

Abstract

To provide a refrigerator including a door with good appearance.SOLUTION: In a refrigerator 1, a door 40 includes: a door body 50 provided on a refrigerator outer side; and a door rear plate 80 that forms a heat insulation space S with the door body 50. The door body 50 includes: a rectangular door front surface part 52 that forms a front surface; and a frame-shaped door frame part 53 formed by four peripheral surface parts 53a, 53b, 53c, 53d extending rearward from a peripheral edge part of the door front surface part 52. The door front surface part 52 and the door frame part 53 are integrally formed by a resin material. At least one peripheral surface part 53a, 53b out of the four peripheral surface parts 53a, 53b, 53c, 53d includes a plurality of reinforcement walls 57, 60 projecting in a direction along the adjacent peripheral surface parts 53c, 53d. The plurality of reinforcement walls 57, 60 are provided at a position separated from corner parts 53ac, 53ad, 53bc, 53bd of the door frame part 53 by at least a predetermined distance, leaving an interval from each other.SELECTED DRAWING: Figure 7

Description

[Technical Field]

[0001] An embodiment of the present invention relates to a refrigerator. [Background technology]

[0002] Conventionally, refrigerators have been provided with a refrigerator door at an opening through which stored goods are taken in and out of the refrigerator. Some refrigerator doors include a front door panel provided on the outside of the refrigerator, a rear door panel provided behind the front door panel, a frame-shaped support frame connecting the peripheral edges of the front door panel and the rear door panel, and a heat insulating material provided in an insulated space defined between the front door panel and the rear door panel.

[0003] In such refrigerator doors, the door front panel and the support frame are provided separately, and the joints between the parts are visible from the outside, which can affect the appearance. Therefore, refrigerator doors have been proposed in which the door front part and the door frame body part are integrally molded from a resin material (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-132647 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when the door front portion and the door frame portion are integrally molded from a resin material, deformation occurs easily due to thermal shrinkage after molding or due to a decrease in the rigidity of the refrigerator door. Because the refrigerator door is a highly visible part of the refrigerator and has a significant impact on the overall design of the refrigerator, further improvement in the appearance of the refrigerator door is desired.

[0006] Therefore, an object of the present invention is to provide a refrigerator having a door with a good appearance. [Means for solving the problem]

[0007] A refrigerator according to an embodiment of the present invention is a refrigerator including a refrigerator main body having a storage compartment therein and a door provided on the refrigerator main body, wherein the door includes a door main body provided on the exterior of the refrigerator, a door rear panel that forms an insulated space between the door main body and the door rear panel, and a heat insulating material provided in the insulated space, the door main body includes a rectangular door front portion that forms the front surface, and a frame-shaped door frame portion formed by four peripheral surface portions extending rearward from a peripheral edge of the door front portion, the door front portion and the door frame portion being integrally molded from a resin material, and at least one of the four peripheral surface portions includes a plurality of reinforcing walls that protrude in a direction along the adjacent peripheral surface portion, and the plurality of reinforcing walls are provided at positions at least a predetermined distance from corners of the door frame portion and spaced apart from one another.

[0008] A refrigerator according to another embodiment of the present invention is a refrigerator including a refrigerator main body having a storage compartment therein and a door provided on the refrigerator main body, wherein the door includes a door main body provided on the exterior of the refrigerator, a door rear panel forming an insulated space between the door main body and the door rear panel, and a heat insulating material provided in the insulated space, the door main body including a rectangular door front portion forming a front surface and a frame-shaped door frame portion formed by four peripheral surface portions extending rearward from a peripheral edge of the door front portion, and a door sub-portion forming one of the peripheral surface portions of the door frame portion is attached to a door main portion formed by integrally molding the door front portion and the three peripheral surface portions of the door frame portion with a resin material, at least one of the peripheral surface portions of the three peripheral surface portions provided on the door main portion includes a plurality of reinforcing walls protruding in a direction along the adjacent peripheral surface portions, and the reinforcing walls are provided at positions spaced apart from each other at a predetermined distance from corners of the door frame portion. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a longitudinal sectional view of a refrigerator according to a first embodiment; [Figure 2] Front view of the refrigerator in Figure 1 [Figure 3] Cross-sectional view of the refrigerator compartment door of the refrigerator in Figure 1 [Figure 4] FIG. 2 is a perspective view showing the door body of the refrigerator of FIG. 1 from diagonally above the front. [Figure 5] Horizontal cross section of the refrigerator door body in Figure 1 [Figure 6] Enlarged view of the main part of Figure 6 [Figure 7] Cross section AA of Figure 5 [Figure 8] Cross-sectional view of a door of a refrigerator according to a second embodiment. [Figure 9] Cross-sectional view of a door body in a second embodiment DETAILED DESCRIPTION OF THE INVENTION

[0010] The following embodiments will be described with reference to the drawings. The following embodiments are merely examples, and the scope of the invention is not limited thereto. The following embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. The following embodiments and their modifications are within the scope of the invention as set forth in the claims and their equivalents. 1. First embodiment (1) Configuration of Refrigerator 1 The configuration of refrigerator 1 will be described with reference to the drawings. As shown in Figs. 1 and 2, refrigerator 1 includes refrigerator main body 2 that opens at the front. Refrigerator main body 2 includes an outer box 3 made of steel plate and an inner box 4 made of synthetic resin, and an insulating space 5 that stores insulating material such as foam insulating material or a vacuum insulating panel is formed between outer box 3 and inner box 4. Refrigerator main body 2 includes multiple storage compartments inside inner box 4. Specifically, as shown in Fig. 1, from the top, a refrigerator compartment 6 and a vegetable compartment 7 are provided, and a freezer compartment 10 is provided below them.

[0011] The refrigerator compartment 6 and the vegetable compartment 7 are storage compartments that are cooled to a refrigeration temperature range (for example, 1 to 4°C) based on the temperature detected by a refrigerator compartment temperature sensor 36 provided on the rear surface thereof. The refrigerator compartment 6 and the vegetable compartment 7 are separated into upper and lower compartments by a partition plate 11 made of synthetic resin, and air from the refrigerator compartment 6 flows into the vegetable compartment 7 through a communication hole 17 provided on the rear end of the partition plate 11.

[0012] The front opening of the refrigerator compartment 6 is opened and closed by a refrigerator compartment door 40. The refrigerator compartment door 40 has an upper portion on either the left or right side of the refrigerator body 2 rotatably supported by the refrigerator body 2 by an upper door support member 18 fixed by screws or the like to the front end portion of the top surface of the refrigerator body 2, and a lower portion on the same side rotatably supported by the refrigerator body 2 by a lower door support member 19 fixed by screws or the like to the front end portion 11a of a partition plate 11 between the refrigerator compartment 6 and the vegetable compartment 7.

[0013] The rear surface of the refrigerating compartment 6 is defined by a rear wall member 32 provided in front of the inner box rear surface 4a at a distance. The rear wall member 32 forms a refrigerating compartment flow path 24a between the rear wall member 32 and the inner box rear surface 4a, through which cold air supplied to the refrigerating compartment 6 flows.

[0014] A plurality of shelves 12 are provided at intervals above and below in the interior space of the refrigerator compartment 6. A water tank, a water supply device, and a pull-out container 14 are housed in the space partitioned above and below by the partition plate 11 and the lowest shelf 12.

[0015] A drawer-type vegetable compartment door 42 is provided at the front opening of the vegetable compartment 7. A storage container 15, which constitutes a storage container, is connected to the back of this vegetable compartment door 42, and is configured so that the storage container 15 is pulled out to the outside when the door is opened. The rear of the vegetable compartment 7 is defined by a rear wall member 33 that is provided in front of the inner box back surface 4a with a gap between them. The rear wall member 33 forms, between itself and the inner box back surface 4a, a vegetable compartment flow path 24b through which cool air flows to be supplied to the refrigerator compartment 6. The upper end of the vegetable compartment flow path 24b is connected to the lower end of the refrigerator compartment flow path 24a, and the refrigerator compartment flow path 24a and the vegetable compartment flow path 24b form the refrigerator-side duct 24.

[0016] Freezer compartment 10 is a storage compartment that is cooled to a freezing temperature range (for example, -10 to -20°C) based on the temperature detected by freezer compartment temperature sensor 37 provided on the rear surface. Vegetable compartment 7 and freezer compartment 10 are separated into upper and lower compartments by a heat-insulating partition wall 16 with heat insulating material provided inside. A drawer-type freezer compartment door 44 is provided at the front opening of freezer compartment 10.

[0017] Freezer compartment 10 has three storage containers arranged vertically, consisting of lower container 100, middle container 101, and upper container 102. A container support 120 that supports lower container 100 is connected to the back of insulated door 10a, so that when the door is opened, lower container 100 and middle container 101, which is supported on the upper surface of lower container 100, are pulled out of the freezer.

[0018] At the back of freezer compartment 10, there is provided cooler compartment 23 which houses cooler 21 that generates cold air to cool refrigerator compartment 6, vegetable compartment 7, and freezer compartment 10, and cooler fan 22 that blows the generated cold air. Cooler compartment 23 is connected to refrigerator-side duct 24 equipped with refrigerator damper 25, freezer-side duct 26 equipped with a freezer damper (not shown), a return duct (not shown) that returns air that has flowed through vegetable compartment 7 to cooler compartment 23, and return duct 20 that returns air that has flowed through freezer compartment 10 to cooler compartment 23.

[0019] The cooler 21 provided in the cooler chamber 23 constitutes a refrigeration cycle together with the compressor 29, condenser 31, etc. provided in the machine chamber 28. The cooler 21 is cooled by the refrigerant discharged from the compressor 29, and cools the air in the cooler chamber 23. The air in the cooler chamber 23 cooled by the cooler 21 is selectively supplied to the refrigerator chamber 6 and the freezer chamber 10 by controlling the opening and closing of the refrigerator damper 25 and the freezer damper while driving the cooler fan 22.

[0020] The air supplied to the refrigerator compartment 6 flows through the refrigerator compartment 6 and the vegetable compartment 7 while cooling them, then passes through the return duct to return to the cooler compartment 23 and is cooled by the cooler 21. The air supplied to the freezer compartment 10 flows through the freezer compartment 10 while cooling them, then passes through the return duct 20 to return to the cooler compartment 23 and is cooled by the cooler 21.

[0021] (2) Structure of refrigerator compartment door 40 Next, the structure of the refrigerator compartment door 40 (hereinafter, sometimes simply referred to as "door 40") of this embodiment will be described.

[0022] In the following description, left and right, front and rear, and top and bottom are expressions when viewing the refrigerator 1 from the front. The center side of the door 40 in the left and right direction is referred to as the "inner side in the width direction." The end sides of the door 40 in the left and right direction are referred to as the "outer side in the width direction." The center side of the door 40 in the up and down direction is referred to as the "inner side in the up and down direction of the door." The end sides of the door 40 in the up and down direction are referred to as the "outer side in the up and down direction of the door."

[0023] As shown in Fig. 3, the door 40 comprises a door body 50 provided on the front outside of the storage compartment, and a door rear panel 80 provided on the rear side of the door body 50. The door body 50 has an opening 51 that opens to the rear. The door rear panel 80 closes the opening 51 to form a heat insulating space S between the door body 50 and the door rear panel 80. The heat insulating space S is provided with a heat insulating material 90 such as a foam heat insulating material or a vacuum heat insulating material, and a reinforcing plate 65.

[0024] (3) Door body 50 3 to 6, the door main body 50 includes a door front portion 52 that forms the front surface of the door 40, a door frame portion 53 that extends rearward from the peripheral edge of the door front portion 52, a door back portion 54 that protrudes from the rear end of the door frame portion 53 toward the inside of the opening 51, and a decorative layer 55 that covers the front surface of the door front portion 52. The door main body 50 has the door front portion 52, door frame portion 53, and door back portion 54 integrally molded from a resin material such as ABS resin, and the decorative layer 55 attached to the door front portion 52.

[0025] The door front surface 52 has upper, lower, left and right edges, and is rectangular in shape, being longer in the vertical direction than in the horizontal direction, to match the shape of the front surface of the refrigerator compartment 6. A thick portion 52a is provided at the peripheral edge of the rear surface of the door front surface 52, which is thicker in the vertical direction than the central portion.

[0026] 5 and 6, protrusions 52b that protrude outward in the width direction beyond the thick portions 52a are provided on the left and right edges of the door front surface 52. The protrusions 52b are provided along the left and right edges of the door front surface 52 over the entire length of the door front surface 52 in the up-down direction.

[0027] The front surface of the protrusion 52b forms the same plane as the front surface of the door front portion 52, with no steps. The front surface of the protrusion 52b is provided with a front arc portion 52b1 having an arc-shaped cross section that curves rearward as it approaches the outer end in the width direction. A side end portion 52b2 extending rearward is provided at the rear end of the front arc portion 52b1, and a rear arc portion 52b3 having an arc-shaped cross section that curves inward in the width direction is provided at the rear end of the side end portion 52b2, and a folded portion 52b4 extending inward in the width direction is provided at the rear end of the rear arc portion 52b3.

[0028] The door frame portion 53 has an upper surface portion 53a extending rearward from the upper edge of the door front portion 52, a lower surface portion 53b extending rearward from the lower edge of the door front portion 52, a left surface portion 53c extending rearward from the left edge of the door front portion 52, and a right surface portion 53d extending rearward from the right edge of the door front portion 52.

[0029] The door frame portion 53 has a corner 53ac formed between the upper surface portion 53a and the left surface portion 53c, a corner 53ad formed between the upper surface portion 53a and the right surface portion 53d, a corner 53bc formed between the lower surface portion 53b and the left surface portion 53c, and a corner 53bd formed between the lower surface portion 53b and the right surface portion 53d, forming a roughly rectangular frame body that is longer in the vertical direction than in the horizontal direction when viewed from the front.

[0030] At both left and right ends of the upper surface portion 53a, there are provided shaft storage recesses 56 recessed inward in the vertical direction of the door. At the bottom portion of the shaft storage recess 56, there is provided a bearing portion 56a into which the upper door support member 18 is inserted.

[0031] A plurality of reinforcing walls 57 are provided between the left and right shaft storage recesses 56 on the top surface portion 53a, protruding toward the heat insulating space S. The plurality of reinforcing walls 57 extend in the front-to-rear direction to connect the upper edge of the door front surface portion 52 and the door back surface portion 54, and protrude in directions along the left surface portion 53c and the right surface portion 53d, which are peripheral surface portions adjacent to the top surface portion 53a.

[0032] 7, the reinforcing walls 57 are provided at positions at least a predetermined distance D away from the corners 53ac and 53ad, and spaced apart at intervals E from one another. The distance D from the corners 53ac and 53ad to the reinforcing walls 57 is greater than the intervals E between the reinforcing walls 57.

[0033] One of the left and right ends of the lower surface portion 53b is provided with a shaft storage recess 58 recessed inward in the vertical direction of the door. A bearing portion 58a into which the lower door support member 19 is inserted is provided on the bottom surface of the shaft storage recess 58. The other left and right end of the lower surface portion 53b is formed with a recess 59 recessed inward in the vertical direction of the door, which functions as a handle for the door 40.

[0034] A plurality of reinforcing walls 60 are provided between the shaft storage recess 58 and the recess 59 on the lower surface portion 53b, protruding toward the heat insulating space S. The plurality of reinforcing walls 60 extend in the front-to-rear direction so as to connect the lower edge of the door front surface portion 52 and the door back surface portion 54, and protrude in directions along the left surface portion 53c and the right surface portion 53d, which are peripheral surface portions adjacent to the lower surface portion 53b.

[0035] Similar to the reinforcing walls 57 provided on the upper surface portion 53a, the multiple reinforcing walls 60 are provided at positions at least a predetermined distance F away from the corners 53bc and 53bd, with intervals G between them. The distances F from the corners 53bc and 53bd to the reinforcing walls 57 are greater than the intervals G between the reinforcing walls 57.

[0036] 5 and 6, a sloping portion 61 is provided at the front end of the left surface portion 53c, which slopes inward in the width direction as it approaches the door front surface portion 52. The front end of the sloping portion 61 is connected to the thick portion 52a of the door front surface portion 52. A recessed groove 62 that is recessed inward in the width direction and is defined by the protrusion 52b of the door front surface portion 52 and the sloping portion 61 of the left surface portion 53c is provided at the connecting portion between the left surface portion 53c and the door front surface portion 52.

[0037] Similarly to the front end of the left surface portion 53c, the front end of the right surface portion 53d is provided with an inclined portion 61 that inclines inward in the width direction as it approaches the door front surface portion 52. The front end of the inclined portion 61 is connected to the thick portion 52a of the door front surface portion 52. The connecting portion between the right surface portion 53d and the door front surface portion 52 is provided with a recessed groove 62 that is defined by the protrusion 52b of the door front surface portion 52 and the inclined portion 61 of the right surface portion 53d and is recessed inward in the width direction.

[0038] 6, the door main body 50 may be provided with a decorative layer 55 on the front surface of the door front portion 52. The decorative layer 55 is made of a thin film such as a resin film decorated by silk screen printing, gravure printing, or the like, and is attached to the front surface of the door front portion 52 with an adhesive.

[0039] The peripheral edge of the decorative layer 55 attached to the door front portion 52 is positioned rearward of the front arc portion 52b1, that is, is positioned at the side end portion 52b2 of the protrusion 52b, the rear arc portion 52b3, the folded portion 52b4, etc., and is located rearward of the front surface of the door front portion 52.

[0040] (4) Door rear panel 80 The door rear panel 80 is a molded product made of synthetic resin. As shown in Fig. 3, the door rear panel 80 forms the interior surface of the door 40. The peripheral edge of the door rear panel 80 is provided with bulging portions 81 that bulge rearward along the top and bottom edges and the left and right edges.

[0041] Additionally, an attachment portion 82 is provided on the peripheral edge of door rear panel 80 so as to surround the outside of bulge portion 81. A sealing member (not shown) called a gasket is attached to attachment portion 82. The sealing member is provided at a position facing the peripheral edge of the front opening of refrigerating compartment 6 in the front-rear direction, and the magnetic force of a magnet arranged inside the sealing member causes it to come into close contact with the peripheral edge of the opening of refrigerator body 2, thereby closing the gap between door 40 and the front opening of refrigerating compartment 6.

[0042] (5) Reinforcement plate 65 5 to 7, the reinforcing plate 65 is formed, for example, by bending a metal plate, and is provided on the heat-insulating space S side of the door frame 53 to reinforce the door main body 50. For example, the door main body 50 is fixed to the heat-insulating space S side of the left surface 53c and right surface 53d of the door frame 53 with an adhesive or the like. The reinforcing plate 65 is provided in the vertical direction along the left surface 53c and right surface 53d.

[0043] (6) Effects In this embodiment, the door front portion 52 that forms the front of the door 40 and the door frame portion 53 that forms the upper, lower, left and right peripheral surfaces of the door 40 are integrally molded from a resin material, so there are no parts that are bonded together between the door front portion 52 and the door frame portion 53, resulting in an aesthetically pleasing door.

[0044] A plurality of reinforcing walls 57 are provided at intervals on the upper surface 53a constituting the door frame portion 53, and a plurality of reinforcing walls 60 are provided on the lower surface 53b, so that deformation due to thermal contraction after molding of the door body 50 can be suppressed, and the rigidity of the door body 50 can be increased to suppress deformation of the door 40.

[0045] Furthermore, when the door body 50 of this embodiment is formed using a mold, the slide mold that forms the corners 53ac, 53ad, 53bc, and 53bd of the door frame portion 53 is moved diagonally to remove the mold. However, since the reinforcing wall 57 is provided at a position away from the corners 53ac and 53ad of the door frame portion 53 and the reinforcing wall 60 is provided at a position away from the corners 53bc and 53bd of the door frame portion 53, the slide mold can be removed without interfering with the reinforcing walls 57 and 60.

[0046] In addition, in this embodiment, the peripheral edge of the decorative layer 55 attached to the front surface of the door front portion 52 is located behind the front surface of the door front portion, so the edge of the decorative layer 55 is less noticeable and the appearance is excellent.

[0047] In this embodiment, the door body 50 of the refrigerator compartment door 40 is integrally molded from a resin material, but the vegetable compartment door 42 and the freezer compartment door 44 may also have the door front portion and the frame-shaped door frame portion integrally molded from a resin material, similar to the refrigerator compartment door 40.

[0048] 2. Second embodiment The second embodiment differs from the first embodiment in that one peripheral surface portion 153b of the four peripheral surface portions 153a, 153b, 153c, and 153d that constitute the door frame portion 153 of the door main body 150 is molded separately from the other three peripheral surface portions 153a, 153c, and 153d. In the drawings showing the second embodiment, the same reference numerals are used to designate the same parts as in the first embodiment.

[0049] As shown in FIGS. 8 and 9, in the second embodiment, the refrigerator compartment door 140 includes a door body 150 made up of a main door portion 150a and a sub-door portion 150b assembled to the main door portion.

[0050] The main door portion 150a is made of a resin molded body in which the door front portion 152 and the upper surface portion 153a, left surface portion 153c, and right surface portion 153d that constitute the door frame portion 153 are integrally molded from a resin material. The sub-door portion 150b is made of a resin molded body in which the lower surface portion 153b that constitutes the door frame portion 153 is molded from a resin material, and is molded separately from the main door portion 150a. The sub-door portion 150b is assembled to the main door portion 150a to form the door body 150.

[0051] In this embodiment, one of the peripheral portions constituting the door body 150 is provided separately from the door front portion 152 and the other three peripheral portions, so there are fewer restrictions on the shape of the door body 150 when molding it using a mold, and the degree of freedom in designing the door shape is improved.

[0052] Furthermore, by making the lower surface portion 153b of the four peripheral surface portions 153a, 153b, 153c, 153d the door sub-portion 150b as in this embodiment, the joint between the door main portion 150a and the door sub-portion 150b is less noticeable and is less likely to affect the aesthetic appearance of the refrigerator.

[0053] In this embodiment, the case where the door main body 150 is formed by assembling the door sub-part 150b having one peripheral surface part 153b to the door main part 150a which is formed by integrally molding the door front part 152 and the three peripheral surfaces 153a, 153c, 153d from a resin material has been described, but for the vegetable compartment door 42 and the freezer compartment door 44, as with the refrigerator compartment door 140, the door main body may also be formed by assembling the door sub-part to the door main part.

[0054] Furthermore, among the multiple doors provided on the refrigerator 1, some of the doors may be doors like the first embodiment in which the door body is integrally molded from a resin material, and other doors may be doors like the second embodiment in which the door body is formed by assembling a door sub-part to a door main part.

[0055] In such cases, doors in which the door body is molded as a single unit from a resin material can reduce manufacturing costs by reducing the number of parts and assembly labor, while other doors can be constructed by assembling the sub-door part to the main door part to form the door body, making it easier to mold even doors that are small in at least one of the vertical and horizontal directions using a mold, and allowing them to be manufactured using a manufacturing method suitable for mass production. [Explanation of symbols]

[0056] 1...refrigerator, 2...refrigerator body, 6...refrigerator compartment, 7...vegetable compartment, 10...freezer compartment, 40...refrigerator compartment door, 42...vegetable compartment door, 44...freezer compartment door, 50...door body, 51...opening, 52...door front portion, 52a...thick portion, 52b...projection portion, 52b1...front arc portion, 52b2...side end portion, 52b3...rear arc portion, 52b4...folded portion, 53...door frame portion, 53a...upper surface portion, 53b...lower surface portion, 53c...left surface portion, 53d...right Surface portion, 53ac...corner portion, 53ad...corner portion, 53bc...corner portion, 53bd...corner portion, 54...door back portion, 55...decorative layer, 57...reinforcing wall, 60...reinforcing wall, 61...inclined portion, 62...groove, 65...reinforcing plate, 80...door rear plate, 81...bulge portion, 82...mounting portion, 90...insulating material, 140...refrigerator compartment door, 150...door body, 150a...door main portion, 150b...door sub-portion, 152...door front portion, 153...door frame portion, S...insulating space

Claims

1. A refrigerator comprising a refrigerator body having a storage compartment therein and a door provided on the refrigerator body, The door includes a door body provided on the outside of the cabinet, a door rear plate forming a heat insulating space between the door body and the door rear plate, and a heat insulating material provided in the heat insulating space. The door body includes a rectangular door front portion that forms a front surface, and a frame-shaped door frame portion formed by four peripheral surface portions that extend rearward from the peripheral edge of the door front portion, and the door front portion and the door frame portion are integrally molded from a resin material, At least one of the four peripheral surface portions includes a plurality of reinforcing walls protruding in a direction along the adjacent peripheral surface portion, The plurality of reinforcing walls are provided at intervals from one another at positions at least a predetermined distance away from corners of the door frame portion.

2. The refrigerator according to claim 1 , wherein a distance from a corner of the door frame to the reinforcing wall is greater than a distance between the reinforcing walls.

3. A refrigerator comprising a refrigerator body having a storage compartment therein and a door provided on the refrigerator body, The door includes a door body provided on the outside of the cabinet, a door rear plate forming a heat insulating space between the door body and the door rear plate, and a heat insulating material provided in the heat insulating space. The door body comprises a rectangular door front portion that forms the front surface, and a frame-shaped door frame portion formed by four peripheral surface portions extending rearward from the peripheral edge of the door front portion, and is configured by assembling a door sub-portion that forms one peripheral surface portion of the door frame portion to a door main portion in which the door front portion and the three peripheral surface portions of the door frame portion are integrally molded from a resin material, At least one of the three peripheral surface portions provided on the door main portion has a plurality of reinforcing walls protruding in a direction along the adjacent peripheral surface portion, The plurality of reinforcing walls are provided at intervals from one another at positions spaced a predetermined distance from corners of the door frame portion.

4. A decorative layer is attached to the front surface of the door front portion, The refrigerator according to claim 1 or 3, wherein a peripheral edge of the decorative layer is provided behind a front surface of the door front portion.

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