Patent AU-2021201079-B2 (AU)
Title: Refrigerator
Inventor: PARK SUNGDEUK
IPC: F25D11/02
Filed: 2021-01-27
Granted: 2022-09-22
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) 
(19) World Intellectual Property 
(1) Organization11111111111111111111111I1111111111111ii111liiili 
International Bureau (10) International Publication Number 
(43) International Publication Date W O 2021/112658 Al 
10 June 2021 (10.06.2021) W IPO I PCT 
(51) International Patent Classification: (72) Inventors: PARK, Sungdeuk; 129, Samsung-ro, Yeong
F25D 23/02 (2006.01) F25D 11/02 (2006.01) tong-gu, Suwon-si, Gyeonggi-do 16677 (KR). KWON, 
E06B3/70(2006.01) Youngmin; 129, Samsung-ro, Yeongtong-gu, Suwon-si, 
(21) International Application Number: Gyeonggi-do 16677 (KR). NAM, Jeongman; 129, Sam
PCT/KR2021/001068 sung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 
16677 
(KR). KIM, Seongwoo; 129, Samsung-ro, Yeongtong-gu, 
(22) International Filing Date: Suwon-si, Gyeonggi-do 16677 (KR). YOON, Seungho; 
27 January 2021 (27.01.2021) 129, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 
(25) Filing Language: English 16677 (KR). JEONG, Hojun; 
129, Samsung-ro, Yeong
tong-gu, Suwon-si, Gyeonggi-do 16677 (KR).  
(26) Publication Language: English (74) Agent: SELIM INTELLECTUAL PROPERTY LAW 
(30) Priority Data: FIRM; 10F and I1F, Taewoo Bldg., 285, Gangnam-daero, 
10-2020-0043017 08 April 2020 (08.04.2020) KR Seocho-gu, Seoul 06729 (KR).  
10-2020-0152722 08 April 2020 (08.04.2020) KR (81) Designated States (unless otherwise indicated, for every 
(71) Applicant: SAMSUNG ELECTRONICS CO., LTD. kind ofnational protection available): AE, AG, AL, AM, 
[KR/KR]; 129, Samsung-ro, Yeongtong-gu, Suwon-si, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, 
Gyeonggi-do 16677 (KR). CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, 
DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, 
HR, HU, ID, IL, IN, IR, IS, IT, JO, JP, KE, KG, KH, KN, 
(54) Title: REFRIGERATOR 
70 
123 1 60 71 122 72 
120-40 
90 
110 
(57) Abstract: Provided is a refrigerator including a main body including a storeroom, a door body arranged to open or close the 
CA storeroom, a decoration panel coupled to a front side of the door body, and a holder mounted on the front side of the door body to be 
1 coupled to the decoration panel. The door body includes a rear case defining a rear side of the door body, and a main case defining 
front and sides of the door body. The main case includes a front part defining the front side of the door body and having an installation 
groove in which to install the holder, side parts defining sides of the door body, and a rear coupler coupled to the rear case. The main 
case is formed by bending a single metal board.
W O 2021/112658 A21/1126||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| 
KP, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, 
MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, 
OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, 
SC, SD, SE, SG, SK, SL, ST, SV, SY, TH, TJ, TM, TN, TR, 
TT, TZ, UA, UG, US, UZ, VC, VN, WS, ZA, ZM, ZW.  
(84) Designated States (unless otherwise indicated, for every 
kind of regional protection available): ARIPO (BW, GH, 
GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, 
UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, 
TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, 
EE, ES, Fl, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, 
MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, 
TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, 
KM, ML, MR, NE, SN, TD, TG).  
Published: 
- with international search report (Art. 21(3)) 
- before the expiration of the time limit for amending the 
claims and to be republished in the event of receipt of 
amendments (Rule 48.2(h)) 
- upon request of the applicant, before the expiration of the 
time limit referred to in Article 2](2)(a)
WO 2021/112658 PCT/KR2021/001068 
Description 
Title of Invention: REFRIGERATOR 
Technical Field 
[1] The disclosure relates to a refrigerator, and more particularly, to a refrigerator having 
a door with a decoration panel attached to the front.  
Background Art 
[2] Refrigerators are home appliances having a main body with storerooms and a cold air 
supply provided for supplying cold air into the storerooms, to keep food and groceries 
fresh. The storerooms include a fridge maintained at temperatures of about 0 to 5 
degrees Celsius for keeping groceries cool, and a freezer maintained at temperatures of 
about 0 to -30 degrees Celsius for keeping groceries frozen. The storeroom commonly 
has an open front through which to take out or put in food, and the open front is 
opened or closed by a door.  
[3] The door may include a door body with insulation, and a decoration panel coupled to 
the front side of the door body. As the decoration panel may be readily attachable to 
and/or detachable from the front side of the door body, the user may easily replace the 
decoration panel with another decoration panel having different texture, color, or 
design to his/her liking.  
Disclosure of Invention 
Technical Problem 
[4] The disclosure provides a refrigerator with a door equipped with a decoration panel 
having a reduced number of parts and simple structure, thereby increasing pro
ductivity, lowering defect rates, and saving costs.  
[5] The disclosure also provides a refrigerator with a door equipped with a decoration 
panel giving an enhanced aesthetic sense and having firmness, and durability.  
Solution to Problem 
[6] According to an aspect of the disclosure, a refrigerator includes a main body 
including a storeroom; a door body arranged to open or close the storeroom; a 
decoration panel coupled to a front side of the door body; and a holder mounted on the 
front side of the door body to be coupled to the decoration panel, wherein the door 
body includes a rear case defining a rear side of the door body; and a main case 
including a front part defining the front side of the door body and having an in
stallation groove in which to install the holder, side parts defining sides of the door 
body, and a rear coupler coupled to the rear case, and wherein the main case is formed 
by bending a single metal board.  
[7] The front part may include a base formed to be flat, and a bending portion formed on
WO 2021/112658 PCT/KR2021/001068 
both left and right sides of the base, and the bending portion may include an inner 
bending portion defining an inner side of the installation groove, a middle bending 
portion defining a rear side of the installation groove, and an outer bending portion 
defining an outer side of the installation groove.  
18] The outer bending portion and the side part may be formed to contact each other by a 
hemming process.  
19] The outer bending portion and the side part may be formed to be parallel to each 
other by a hemming process.  
[10] The outer bending portion and the side part may protrude farther forward than the 
base.  
[11] The middle bending portion may be formed to be perpendicular to the outer bending 
portion.  
[12] The inner bending portion may be formed to be tilted to base.  
[13] The main case may be formed of an iron plate material.  
[14] The installation groove may have an open front.  
[15] The refrigerator may further include a fastening member fastened to the holder and 
the installation groove to fix the holder to the installation groove.  
[16] The holder may include a case supporter supported on the bending portion, and the 
case supporter may include an inner supporter supported on the inner bending portion; 
a middle supporter supported on the middle bending portion; and an outer supporter 
supported on the outer bending portion.  
[17] The refrigerator may further include side trims attached to both left and right edges 
of a rear side of the decoration panel and coupled to the holder.  
[18] The holder may include a holder groove to which a side trim projection of the side 
trim is inserted, and a holder projection protruding from the case supporter to catch the 
side trim projection.  
[19] The decoration panel is formed of an iron plate material, and the holder may include 
a panel supporter supporting a left end or right end of the panel body.  
[20] According to another aspect of the disclosure, a refrigerator includes a main body 
including a first storeroom and a second storeroom formed under the first storeroom; a 
first door including a first door body arranged to open or close the first storeroom, a 
first decoration panel coupled to a front side of the first door body, and a first fixer 
fixing the first door body and the first decoration panel; and a second door including a 
second door body arranged to open or close the second storeroom, a second decoration 
panel coupled to a front side of the second door body, and a second fixer fixing the 
second door body and the second decoration panel, wherein the first fixer is coupled to 
a top end of the first door body and the second fixer is coupled to a bottom end of the 
second door body.
WO 2021/112658 PCT/KR2021/001068 
[21] A handle may be formed on each of a bottom side of the first door body and a top 
side of the second door body.  
[22] The first decoration panel may include a first panel body, a first upper trim arranged 
at top edges of a rear side of the first panel body, and a first lower trim arranged at 
bottom edges of the rear side of the first panel body, and the first fixer may be coupled 
to the first upper trim.  
[23] The second decoration panel may include a second panel body, a second upper trim 
arranged at top edges of a rear side of the second panel body, and a second lower trim 
arranged at bottom edges of the rear side of the second panel body, and the second 
fixer may be coupled to the second lower trim.  
[24] The first door body may include an upper cap and a lower cap, the first fixer may be 
coupled to the upper cap of the first door body, and the first door body may have a 
handle formed at the lower cap.  
[25] The second door body may include an upper cap and a lower cap, the second door 
body may have a handle formed at the upper cap, wherein the second fixer may be 
coupled to the lower cap of the second door body.  
Advantageous Effects of Invention 
[26] According to embodiments of the disclosure, a decoration panel on a door of a re
frigerator is readily attached to or separated from a door body, making it easy to 
change a design of the door in a way of replacing the decoration panel.  
[27] According to embodiments of the disclosure, a front part defining the front side of 
the door body and side parts forming the sides of the door body may be integrally 
formed, thereby increasing productivity, lowering defect rates, and saving costs.  
[28] According to embodiments of the disclosure, the refrigerator may have the door that 
gives an enhanced aesthetic sense and has firmness and durability.  
Brief Description of Drawings 
[29] FIG. 1 illustrates a front view of a refrigerator, according to an embodiment of the 
disclosure; 
[30] FIG. 2 illustrates a perspective view of the refrigerator of FIG. 1; 
[31] FIG. 3 illustrates a fridge door of the refrigerator of FIG. 1 broken down to a door 
body and a decoration panel; 
[32] FIG. 4 illustrates an exploded view of a door body of a fridge door of the refrigerator 
of FIG. 1; 
[33] FIG. 5 illustrates a cross-sectional view of a fridge door of the refrigerator of FIG. 1; 
[34] FIG. 6 illustrates an enlarged view of portion A of FIG. 5; 
[35] FIG. 7 illustrates an operation of coupling a decoration panel of a fridge door of the 
refrigerator of FIG. 1 to a door body;
WO 2021/112658 PCT/KR2021/001068 
[36] FIG. 8 illustrates a bottom coupling structure of a fridge door of the refrigerator of 
FIG. 1; 
[37] FIG. 9 illustrates a top coupling structure of a fridge door of the refrigerator of FIG.  
1; 
[38] FIG. 10 illustrates a first process of manufacturing a main case of a fridge door of the 
refrigerator of FIG. 1; 
[39] FIG. 11 illustrates a second process of manufacturing a main case of a fridge door of 
the refrigerator of FIG. 1; 
[40] FIG. 12 illustrates a third process of manufacturing a main case of a fridge door of 
the refrigerator of FIG. 1; 
[41] FIG. 13 illustrates a fourth process of manufacturing a main case of a fridge door of 
the refrigerator of FIG. 1; 
[42] FIG. 14 illustrates a fifth process of manufacturing a main case of a fridge door of the 
refrigerator of FIG. 1; 
[43] FIG. 15 illustrates a freezer door of the refrigerator of FIG. 1 broken down to a 
decoration panel and a door body; 
[44] FIG. 16 illustrates an operation of coupling a decoration panel of the freezer door of 
the refrigerator of FIG. 1 to a door body; 
[45] FIG. 17 illustrates a top coupling structure of the freezer door of the refrigerator of 
FIG. 1; 
[46] FIG. 18 illustrates a bottom coupling structure of the freezer door of the refrigerator 
of FIG. 1; 
[47] FIG. 19 illustrates a door of a refrigerator, according to another embodiment of the 
disclosure; and 
[48] FIG. 20 illustrates a cross-sectional view of the door of the refrigerator of FIG. 19.  
Mode for the Invention 
[49] Embodiments of the disclosure are only the most preferred examples and provided to 
assist in a comprehensive understanding of the disclosure as defined by the claims and 
their equivalents. Accordingly, those of ordinary skilled in the art will recognize that 
various changes and modifications of the embodiments described herein can be made 
without departing from the scope and spirit of the disclosure.  
[50] It is to be understood that the singular forms "a," "an," and "the" include plural 
references unless the context clearly dictates otherwise. It will be further understood 
that the terms "comprises" and/or "comprising," when used in this specification, 
specify the presence of stated features, integers, steps, operations, elements, and/or 
components, but do not preclude the presence or addition of one or more other 
features, integers, steps, operations, elements, components, and/or groups thereof.
WO 2021/112658 PCT/KR2021/001068 
[51] The terms including ordinal numbers like "first" and "second" may be used to explain 
various components, but the components are not limited by the terms. The terms are 
only for the purpose of distinguishing a component from another.  
[52] Reference will now be made in detail to embodiments, examples of which are il
lustrated in the accompanying drawings, wherein like reference numerals refer to the 
like elements throughout.  
[53] FIG. 1 illustrates a front view of a refrigerator, according to an embodiment of the 
disclosure. FIG. 2 illustrates a perspective view of the refrigerator of FIG. 1.  
[54] Referring to FIGS.1 and 2, a refrigerator 1 may include a main body 10, storerooms 
21, 22, and 23 formed inside the main body 10, doors 31, 32, 33, and 34 to open or 
close the storerooms 21, 22, and 23, and a cold air supply (not shown) for supplying 
cold air to the storerooms 21, 22, and 23.  
[55] The main body 10 may include an inner case 11 that defines the storerooms 21, 22, 
and 23, an outer case 12 coupled onto the outer side of the inner case 11 to define the 
exterior, and insulation (not shown) provided between the inner case 11 and the outer 
case 12 for insulating the storerooms 21, 22, and 23.  
[56] There may be a horizontal partition wall 24 and a vertical partition wall 25 to 
separate the plurality of storerooms 21, 22, and 23. The storerooms 21, 22, and 23 may 
be separated by the horizontal partition wall 24 into an upper storeroom 21 and the 
lower storerooms 22 and 23, and by the vertical partition wall 25 into the lower left 
storeroom 22 and the lower right storeroom 23.  
[57] The upper storeroom 21 may be used as a fridge, and the lower storerooms 22 and 23 
may be used as freezers. How the storerooms 21, 22, and 23 are separated and used is 
not, however, limited thereto.  
[58] There may be shelves 26 on which to put groceries, and storage containers 27 for 
keeping groceries provided in the storerooms 21, 22, and 23.  
[59] The cold air supply may produce cold air using a cooling cycle for compressing, 
condensing, and evaporating refrigerants, and supply the cold air to the storerooms 21, 
22, and 23.  
[60] The storeroom 21 may be opened or closed by a pair of upper doors 31 and 32. The 
upper doors 31 and 32 may be rotatably coupled to the main body 10. The storeroom 
22 may be opened or closed by a door 33, which may be rotatably coupled to the main 
body 10. The storeroom 23 may be opened or closed by a lower right door 34, which 
may be rotatably coupled to the main body 10. The main body 10 may include hinges 
35, 36, and 37 to couple the doors 31, 32, 33, and 34 to the main body 10.  
[61] Door guards 38 for storing foods, and door gaskets 39 may be tight on the front side 
of the main body 10 to seal the storerooms 21, 22, and 23 may be provided on the rear 
side of the doors 31, 32, 33, and 34.
WO 2021/112658 PCT/KR2021/001068 
[62] FIG. 3 illustrates a door of the refrigerator of FIG. 1 broken down to a door body and 
a decoration panel. FIG. 4 illustrates an exploded view of a door body of a fridge door 
of the refrigerator of FIG. 1. FIG. 5 illustrates a cross-sectional view of a fridge door of 
the refrigerator of FIG. 1. FIG. 6 illustrates an enlarged view of portion A of FIG. 5.  
FIG. 7 illustrates an operation of coupling a decoration panel of a fridge door of the re
frigerator of FIG. 1 to a door body. FIG. 8 illustrates a bottom coupling structure of a 
fridge door of the refrigerator of FIG. 1. FIG. 9 illustrates a top coupling structure of a 
fridge door of the refrigerator of FIG. 1.  
[63] Referring to FIGS. 3 to 9, a structure of the upper doors 31 and 32 to open or close 
the upper storeroom 21 will be described. The following description will be focused on 
a structure of the upper right door 32, which may be equally applied to the upper left 
door 31, so the description of the upper left door 31 will not be repeated.  
[64] The door 32 may include a door body 40, and a decoration panel 110 coupled to the 
front side of the door body 40.  
[65] The decoration panel 110 may include a panel body 111, and trims 120, 130, and 140 
attached to the rear side of the panel body 111 to be coupled with the door body 40.  
The panel body 111 may have a size corresponding to the door body 40. Accordingly, 
the front side of the door body 40 may be hidden by the panel body 111 and not be 
exposed.  
[66] The panel body 111 may have any of various textures, colors and designs. The 
decoration panel 110 may be formed to be readily attachable to and detachable from 
the front side of the door body 40. Accordingly, the door 32 may easily change the 
front texture, color, and design by replacing the decoration panel 110.  
[67] The panel body 111 may be formed of glass or a resin. The decoration panel 110 may 
include a buffering member 115 attached onto the rear side of the panel body 111 to 
soften the impact when the decoration panel 110 is coupled to the door body 40.  
[68] The trims 120, 130, and 140 may include an upper trim 120 attached to top edges of 
the rear side of the panel body 111, side trims 130 attached to left and right edges of 
the rear side of the panel body 111, and a lower trim 140 attached to bottom edges of 
the rear side of the panel body 111. The upper trim 120 and the lower trim 140 may be 
formed to be long in the horizontal direction, and the side trims 130 may be formed to 
be long in the vertical direction.  
[69] The upper trim 120, side trims 130, and lower trim 140 may each be attached to the 
rear side of the panel body 111 through an adhesive 150.  
[70] The lower trim 140 may include a lower trim body 141, a lower trim projection 142, 
and a lower trim groove 143. The lower trim projection 142 may protrude from the 
lower trim body 141. The lower trim projection 142 may have a shape that extends 
backwards by a certain distance from the lower trim body 141 and then extends
WO 2021/112658 PCT/KR2021/001068 
vertically, to define the lower trim groove 143. The lower trim groove 143 may be 
formed between the lower trim body 141 and the lower trim projection 142.  
[71] A lower cap 80 of the door body 40 may include a lower cap body 81, a lower cap 
projection 82, a lower cap rib 84, and a lower cap installation space 85. The lower cap 
projection 82 may protrude upwards from the lower cap body 81. The lower cap 
projection 82 may be formed to be put into the lower trim groove 143 of the lower trim 
140.  
[72] The lower cap rib 84 may protrude upwards from the lower cap body 81. The lower 
cap rib 84 may be formed at a certain distance from the lower cap projection 82. The 
lower cap rib 84 may be provided to guide the lower trim 140 of the decoration panel 
110 into an installation position when the decoration panel 110 is installed on the door 
body 40.  
[73] The lower cap installation space 85 may be formed between the lower cap projection 
82 and the lower cap rib 84. When the lower cap projection 82 is entering the lower 
trim groove 143, the lower cap projection 82 may be fully inserted to the lower trim 
groove 143 while the lower trim projection 142 is rotating in the lower cap installation 
space 85.  
[74] The lower cap 80 may include a handle 83 (see FIG. 4) to be held by the hand to 
open or close the door 32. The handle 83 may be formed to be sunken from the bottom 
side of the lower cap 80.  
[75] The side trim 130 may include a side trim body 131 and a side trim projection 132.  
The side trim projection 132 may protrude from the side trim body 131, and may be 
elastically deformable.  
[76] A holder 100 mounted on the door body 40 may include a holder groove 105 and a 
holder projection 106. The holder groove 105 may be formed for the side trim 
projection 132 of the side trim 130 to be inserted thereto. The side trim projection 132 
may be elastically deformable to be caught by the holder projection 106 when inserted 
more than a certain depth to the holder groove 105.  
[77] The upper trim 120 may include an upper trim body 121, an upper trim projection 
122, and an upper trim hole 123. The upper trim projection 122 may protrude from the 
upper trim body 121. The upper trim hole 123 may be formed at the upper trim 
projection 122.  
[78] An upper cap 70 of the door body 40 may include an upper cap body 71, an insertion 
groove 72, an upper cap hole 73. The insertion groove 72 may be formed for the upper 
trim projection 122 of the upper trim 120 to be inserted thereto. When the upper trim 
projection 122 is inserted to the insertion groove 72, a first fixer 160 may be coupled 
down to the upper cap hole 73 of the upper cap 70 and the upper trim hole 123 of the 
upper trim projection 122, enabling the decoration panel 110 to be coupled to the door
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body 40.  
[79] With this structure, a procedure of coupling the decoration panel 110 to the door 
body 40 will now be described below.  
[80] First, the decoration panel 110 is tilted for the lower cap projection 82 to be put into 
the lower trim groove 163. Next, the decoration panel 110 may be turned to a standing 
position of the decoration panel 110, the upper trim projection 122 may be inserted to 
the insertion groove 72 of the upper cap 70 while the lower cap projection 82 is fully 
inserted to the lower trim groove 163. The first fixer 160 may then be coupled down to 
the upper cap hole 73 of the upper cap 70 and the upper trim hole 123 of the upper trim 
projection 122.  
[81] With this structure, the decoration panel 110 may be easily coupled to the door body 
40, and easily separated from the door body 40 in the reverse order.  
[82] The door body 40 may be rotatably coupled to the main body 10. The door body 40 
may include a rear case 60 defining the rear surface of the door body 40, a main case 
41 defining the front and side surfaces of the door body 40, the upper cap 70 coupled 
to the top ends of the main case 41 and the rear case 60, and the lower cap 80 coupled 
to the bottom ends of the main case 41 and the rear case 60.  
[83] An internal space may be formed between the main case 41, the rear case 60, the 
upper cap 70, and the lower cap 80, and insulation 90 may be filled in the internal 
space.  
[84] The main case 41 may include a front part 42 defining the front surface of the door 
body 40, side parts 50 defining the side surfaces of the door body 40, and a rear 
coupler 51 coupled to the rear case 60.  
[85] An installation groove 48 in which to install the holder 100 may be formed at the 
front part 42. The installation groove 48 may be formed to have an open front. The in
stallation groove 48 may be formed to be long in the vertical direction at the left and 
right edges of the front part 42.  
[86] The front part 42 may include a base 43 formed to be flat, and a bending portion 44 
formed on the left and right sides of the base 43 to form the installation groove 48.  
[87] The bending portion 44 may include an inner bending portion 45 forming an inner 
side of the installation groove 48, a middle bending portion 46 forming a rear side of 
the installation groove 48, and an outer bending portion 47 forming an outer side of the 
installation groove 48.  
[88] This main case 41 may be formed by a press bending process of a single metal board 
500 (see FIG. 10). The single metal board 500 may be formed of an iron plate material.  
In this way, the main case 41 is integrally formed, making the door body 40 have a 
simple structure and easily assembled, thereby increasing productivity, lowering defect 
rates, and saving costs. Furthermore, the door body 40 has less assembled parts,
WO 2021/112658 PCT/KR2021/001068 
thereby improving resistance to distortion and firmness.  
[89] During the press bending of the main case 41, the outer bending portion 47 and the 
side parts 50 may substantially come into contact with each other through hemming 
processing. This may prevent a foam fluid from permeating between the outer bending 
portion 47 and the side parts 50. From a different perspective, the outer bending 
portion 47 and the side parts 50 may be substantially parallel to each other.  
[90] In this way, the outer bending portion 47 and the side parts 50 are formed to be sub
stantially in contact with and parallel to each other, so the installation groove 48 in 
which to install the holder 100 may be formed as closely as possible to the side edges 
of the decoration panel 110 and the outer bending portion 47 and the side parts 50 may 
support each other, thereby securing firmness and giving an enhanced aesthetic sense.  
[91] The outer bending portion 47 and the side parts 50 may protrude farther forward than 
the base 43. Accordingly, when the door 32 is viewed from the side, no gap between 
the decoration panel 110 and the door body 40 is seen, thereby giving an enhanced 
aesthetic sense.  
[92] The middle bending portion 46 may be formed to be substantially perpendicular to 
the outer bending portion 47, and the inner bending portion 45 may be formed to be 
tilted to the middle bending portion 46 and the base 43.  
[93] The door 32 includes the holder 100 to be mounted in the installation groove 48 
formed at the main case 41 to be coupled to the side trim 130 of the decoration panel 
110. The holder 100 may be inserted to the installation groove 48 and fixed to the in
stallation groove 48 by an extra fastening member such as a rivet, a screw, a pin, etc.  
[94] The holder 100 may include a case supporter 101 supported on the bending portion 
44 that forms the installation groove 48. The case supporter 101 may include an inner 
supporter 102 supported on the inner bending portion 45, a middle supporter 103 
supported on the middle bending portion 46, and an outer supporter 104 supported on 
the outer bending portion 47.  
[95] The holder 100 may include a holder groove 105, to which the side trim projection 
132 of the side trim 130 is inserted. The holder 100 may include a holder projection 
106 formed to be caught by the side trim projection 132 to prevent the side trim 
projection 132 from being deviated when inserted to the holder groove 105. The holder 
projection 106 may protrude from the case supporter 101.  
[96] FIG. 10 illustrates a first process of manufacturing a main case of a fridge door of the 
refrigerator of FIG. 1. FIG. 11 illustrates a second process of manufacturing a main 
case of a fridge door of the refrigerator of FIG. 1. FIG. 12 illustrates a third process of 
manufacturing a main case of a fridge door of the refrigerator of FIG. 1. FIG. 13 il
lustrates a fourth process of manufacturing a main case of a fridge door of the re
frigerator of FIG. 1. FIG. 14 illustrates a fifth process of manufacturing a main case of
WO 2021/112658 PCT/KR2021/001068 
a fridge door of the refrigerator of FIG. 1.  
[97] Referring to FIGS. 10 to 14, a method of manufacturing the main case 41 according 
to the disclosure will be briefly described.  
[98] The main case 41 may be formed by press-bending the single metal board 500.  
[99] A process of manufacturing the main case 41 may include cutting the single metal 
board 500 along cutting lines 501 and 502 (see FIG. 10).  
[100] The process of manufacturing the main case 41 may include a complex U bending 
process (see FIG. 11). The complex U bending process performs Z bending and L 
bending to bend the single metal board 500 along bending lines 503, 504, 505, and 
506. The side part 50 and the outer bending portion 47 may bend to form about 90 
degrees.  
[101] The process of manufacturing the main case 41 may include a 50 degree bending 
process (see FIG. 12). In the 50 degree bending process, the side part 50 and the outer 
bending portion 47 may bend to form about 50 degrees.  
[102] The process of manufacturing the main case 41 may include a hemming process 
(hemming, swing punches)(see FIG. 13). In the hemming process, the side part 50 and 
the outer bending portion 47 may bend to be in substantially contact with and parallel 
to each other.  
[103] The process of manufacturing the main case 41 may include a restriking process 
(restriking, cam bend) (see FIG. 14). In the restriking process, the side part 50 may 
bend along a bending line 507 to form the rear coupler 51.  
[104] FIG. 15 illustrates a freezer door of the refrigerator of FIG. 1 broken down to a 
decoration panel and a door body. FIG. 16 illustrates an operation of coupling a 
decoration panel of the freezer door of the refrigerator of FIG. 1 to a door body. FIG.  
17 illustrates a top coupling structure of the freezer door of the refrigerator of FIG. 1.  
FIG. 18 illustrates a bottom coupling structure of the freezer door of the refrigerator of 
FIG. 1.  
[105] Referring to FIGS. 15 to 18, a structure of the lower doors 33 and 34 to open or close 
the lower storerooms 22 and 23 will be described. The following description will be 
focused on a structure of the lower right door 34, which may be equally applied to the 
lower left door 33, so the description of the lower left door 33 will not be repeated.  
[106] The lower door 34 has an upper cap 270, a lower cap 280, an upper trim 320, a lower 
trim 340, and a second fixer 360, each of which has a different structure as compared 
to the upper door 32 as described above. Hence, a method of coupling a decoration 
panel 310 to a door body 240 is also different than the coupling method for the upper 
right door 32.  
[107] The same structures as in the aforementioned upper right door 32 will not be 
described again.
WO 2021/112658 PCT/KR2021/001068 
[108] The lower right door 34 may include a door body 240, and a decoration panel 310 
coupled to the front side of the door body 240.  
[109] The decoration panel 310 may include a panel body 311, and trims 320, 330, and 340 
attached to the rear side of the panel body 311 to be coupled with the door body 240.  
The decoration panel 310 may include a buffering member 315 attached onto the rear 
side of the panel body 311 to soften the impact when the decoration panel 310 is 
coupled to the door body 240.  
[110] The trims 320, 330, and 340 may include an upper trim 320 attached to top edges of 
the rear side of the panel body 311, side trims 330 attached to left and right edges of 
the rear side of the panel body 311, and a lower trim 340 attached to bottom edges of 
the rear side of the panel body 311. The upper trim 320 and the lower trim 340 may be 
formed to be long in the horizontal direction, and the side trims 330 may be formed to 
be long in the vertical direction.  
[111] The upper trim 320, side trims 330, and lower trim 340 may each be attached to the 
rear side of the panel body 311 through an adhesive 350.  
[112] The upper trim 320 may include a upper trim body 321, a upper trim projection 322, 
and a upper trim groove 323.  
[113] The upper trim projection 322 may protrude from the upper trim body 321. The 
upper trim projection 322 may have a shape that extends backwards by a certain 
distance from the upper trim body 321 and then extends almost vertically, to define the 
upper trim groove 323. The upper trim groove 323 may be formed between the upper 
trim body 321 and the upper trim projection 322.  
[114] The upper cap 270 of the door body 240 may include an upper cap body 271, an 
upper cap projection 272, an upper cap rib 274, and an upper cap installation space 
275. The upper cap projection 272 may protrude downwards from the upper cap 
projection 272. The upper cap projection 272 may be formed to be put into the upper 
trim groove 323 of the upper trim 320.  
[115] The upper cap rib 274 may protrude downwards from the upper cap body 271. The 
upper cap rib 274 may be formed at a certain distance from the upper cap projection 
272. The upper cap rib 274 may be provided to guide the upper trim 320 of the 
decoration panel 310 into an installation position when the decoration panel 310 is 
installed on the door body 240.  
[116] The upper cap 270 may include a handle 273 (see FIG. 15) to be held by the hand to 
open or close the lower right door 34. The handle 273 may be formed to be sunken 
from the top side of the upper cap 270.  
[117] The upper cap installation space 275 may be formed between the upper cap 
projection 272 and the upper cap rib 274. When the upper cap projection 272 is 
entering the upper trim groove 323, the upper cap projection 272 may be fully inserted
WO 2021/112658 PCT/KR2021/001068 
to the upper trim groove 323 while the upper trim projection 322 is rotating in the 
upper cap installation space 275.  
[118] The lower trim 340 may include a lower trim body 341, lower trim projection 342, 
and a lower trim hole 343. The lower trim projection 342 may protrude from the lower 
trim body 341. The lower trim hole 343 may be formed at the lower trim projection 
342.  
[119] The lower cap 280 of the door body 240 may include a lower cap body 281, an 
insertion groove 282, a lower cap hole 283. The insertion groove 282 may be formed 
for the lower trim projection 342 of the lower trim 340 to be inserted thereto. When the 
lower trim projection 342 is inserted to the insertion groove 282, a second fixer 360 
may be coupled up to the lower cap hole 283 of the lower cap 280 and the lower trim 
hole 343 of the lower trim projection 342, enabling the decoration panel 310 coupled 
to the door body 240.  
[120] With this structure, a procedure of coupling the decoration panel 310 to the door 
body 240 will now be described below.  
[121] First, the decoration panel 310 may be tilted for the upper cap projection 272 to be 
put into the upper trim groove 323. Next, when the decoration panel 310 is turned to a 
standing position of the decoration panel 310, the lower trim projection 342 may be 
inserted to the insertion groove 282 of the lower cap 280 while the upper cap 
projection 272 is fully inserted to the upper trim groove 323. The second fixer 360 may 
then be coupled up to the lower cap hole 283 of the lower cap 280 and the lower trim 
hole 343 of the lower trim projection 342.  
[122] In this way, while the upper doors 31 and 32 have the handle 83 formed at the bottom 
ends as shown in FIG. 4, the lower doors 33 and 34 may have a handle 273 formed at 
the top ends.  
[123] Furthermore, while the first fixer 160 for fixing the door body 40 to the decoration 
panel 110 is coupled to the top ends of the upper doors 31 and 32 as shown in FIG. 3, 
the second fixer 360 for fixing the door body 240 to the decoration panel 310 may be 
coupled to the bottom ends of the lower doors 33 and 34 as shown in FIG. 15. Hence, 
the first fixer 160 and the second fixer 360 may be prevented from being exposed to 
the user, thereby giving an enhanced aesthetic sense.  
[124] FIG. 19 illustrates a door of a refrigerator, according to another embodiment of the 
disclosure. FIG. 20 illustrates a cross-sectional view of the door of the refrigerator of 
FIG. 19.  
[125] Referring to FIGS. 19 and 20, a refrigerator in accordance with another embodiment 
of the disclosure will now be described. The same features as in the aforementioned 
embodiment are denoted by the same reference numerals, and the overlapping de
scription will not be repeated. Although FIGS. 19 and 20 shows an upper door to open
WO 2021/112658 PCT/KR2021/001068 
or close an upper storeroom, the disclosure is not limited thereto and the structure of 
the upper door may be equally applied to a lower door to open or close a lower 
storeroom.  
[126] In contrast to the decoration panel including a glass or resin panel body in the 
previous embodiment of the disclosure, a panel body 411 of a decoration panel 410 
may be formed of an iron plate material in this embodiment of the disclosure.  
[127] The door 400 may include the door body 40, and the decoration panel 410 coupled to 
the front side of the door body 40.  
[128] The decoration panel 410 may include a panel body 411, trims 420 and 440 attached 
to the rear side of the panel body 411 and a magnet 430 to be coupled with the door 
body 40.  
[129] The panel body 411 may be formed of an iron plate material. Left and right ends 412 
of the panel body 411 may be rounded to bend inwards.  
[130] The magnet 430 may be provided instead of the side trims 130 or 330 in the previous 
embodiment of the disclosure, to magnetically attract the main case 41 of the door 
body 40 when the decoration panel 410 is coupled to the door body 40 to prevent them 
from being separated. The main case 41 may be formed of an iron plate material to be 
drawn to the magnet 430.  
[131] The holder 100 may include a panel supporter 107 formed to support the left and 
right ends 412 of the panel body 411. As the holder 100 supports the left and right ends 
412 of the panel body 411 and the main case 41 tightly contacts the decoration panel 
410 according to magnetic force of the magnet 430, the decoration panel 410 and the 
door body 40 may be coupled stably.  
[132] In this case that the panel body 411 of the decoration panel 410 is formed of a 
material such as an iron plate that is thin and easily deformable, e.g., swollen, the 
magnet 430 is applied instead of the side trim 130 or 330 to prevent deformation of the 
panel body 411.  
[133] The disclosure is not exclusively applied to the aforementioned refrigerator and the 
door, but may also be applied to any electronic device having a main body with a 
cavity and a door to open or close the cavity and the door. For example, the disclosure 
may also be applied to a cooking apparatus having a cooking chamber, a dish washer 
having a washing chamber, a garment processing machine having a garment 
processing chamber, a wine cellar having a chamber, an air conditioner, etc.  
[134] Several embodiments of the disclosure have been described above, but a person of 
ordinary skill in the art will understand and appreciate that various modifications can 
be made without departing the scope of the disclosure. Thus, it will be apparent to 
those ordinary skilled in the art that the true scope of technical protection is only 
defined by the following claims.
WO 2021/112658 PCT/KR2021/001068 
Claims 
[Claim 1] 1. A refrigerator comprising: 
a main body; 
a first door arranged to open or close an upper front side of the main 
body;and 
a second door arranged to open or close a lower front side of the main 
body, 
wherein the first door comprises 
a first door body including a first upper cap and a first lower cap, a first 
panel coupled to a front side of the first door body, and a first fixer 
coupled downward to the first upper cap and a first upper trim at an 
upper portion of the first panel while a lower portion of the first panel 
is coupled to the first lower cap, and 
wherein the second door comprises 
a second door body including a second upper cap and a second lower 
cap, a second panel coupled to a front side of the second door body, 
and a second fixer coupled upward to the second lower cap and a first 
lower trim of a lower portion of the second panel while an upper 
portion of the second panel is coupled to the second upper cap.  
[Claim 2] The refrigerator of claim 1, wherein the first lower cap and the second 
upper cap have a recess handle, respectively.  
[Claim 3] The refrigerator of claim 1, wherein the first panel comprises 
a first panel body; 
a first upper trim attached to the upper portion of a rear side of the first 
panelbody;and 
a first lower trim attached to the lower portion of the rear side of the 
first panel body, and 
wherein the second panel comprises 
a second panel body; 
a second upper trim attached to the upper portion of a rear side of the 
second panel body; and 
a second lower trim attached to the lower portion of the rear side of the 
second panel body.  
[Claim 4] The refrigerator of claim 3, wherein the first lower trim is coupled to 
the first lower cap.  
[Claim 5] The refrigerator of claim 3, wherein the first upper trim is fixed to the 
first upper cap through the first fixer.
WO 2021/112658 PCT/KR2021/001068 
[Claim 6] The refrigerator of claim 3, wherein the second upper trim is coupled to 
the second upper cap.  
[Claim 7] The refrigerator of claim 3, wherein the second lower trim is fixed to 
the second lower cap by the second fixer.  
[Claim 8] The refrigerator of claim 3, wherein the second lower trim is fixed to 
the second lower cap by the second fixer.  
[Claim 9] The refrigerator of claim 1, wherein the first panel covers a sub
stantially entire area of the front side of the first door body, and 
wherein the second panel covers a substantially entire area of the front 
side of the second door body.  
[Claim 10] The refrigerator of claim 1, wherein the first panel covers a sub
stantially entire area of the front side of the first door body, and 
wherein the second panel covers a substantially entire area of the front 
side of the second door body.  
[Claim 11] The refrigerator of claim 10, wherein the second upper trim comprises 
an upper trim groove, to which the upper cap projection is inserted.  
[Claim 12] The refrigerator of claim 3, wherein the second lower cap comprises a 
lower cap hole, to which the second fixer is inserted.  
[Claim 13] The refrigerator of claim 12, wherein the second lower trim comprises 
a lower trim hole, to which the second fixer is inserted.  
[Claim 14] The refrigerator of claim 13, wherein the lower cap hole and the lower 
trim hole are vertically aligned to each other and 
the second fixer comprises a first portion to be inserted to the lower cap 
hole and the lower trim hole, and a second portion exposed below the 
second lower cap and supported on an outer surface of the second 
lower cap.  
[Claim 15] The refrigerator of claim 3, wherein the second panel further comprises 
a buffering member attached onto the rear side of the second panel 
body between the second upper trim and the second lower trim, and 
magnetic bodies attached onto both left and right end portions of the 
rear side of the second panel body.
WO 2021/112658 PCT/KR2021/001068 
[Fig. 1] 
32 
31 
33s - 34
WO 2021/112658 PCT/KR2021/001068 
[Fig. 2] 
121 
12 10 
35 i 
31 
26 2 
36,3 
33- -27 
38 
22 -- 24 
39 
37 25 
23 
N-34
WO 2021/112658 PCT/KR2021/001068 
[Fig. 3] 
160 
32 
71 
120 70 7 
111'~ --- 7064 
00 
1303 
1151 
42 150 
140 
80
WO 2021/112658 PCT/KR2021/001068 
[Fig. 4] 
73 71 70 
40 
424 
48 38 
too-I 
100
[Fig. 5] 
32 
51 
40 'A 5 
90 60 ½A-1 4 
110 1142 AT
WO 2021/112658 PCT/KJR2021/001068 
[Fig. 6] 
90 
44 46 
101 
109 
4 
45 50 
--132 
42 0 
100 
43, 
102 130 106 150105 
111 131
WO 2021/112658 PCT/KR2021/001068 
[Fig. 7] 
130 
4 
1440 
85 
82 
115 /3 KY 
848
WO 2021/112658 PCT/KR2021/001068 
[Fig. 8] 
40 
41 90 
110 
140 
150
84 
85 
143 82 142 80 
81
WO 2021/112658 PCT/KR2021/001068 
[Fig. 9] 
70 
123 73 160 71 122 72 
120l 40 
90 
150 -
110 
[Fig. 10] 
500 
501 502 
[Fig. 11] 
506 
. 5 -
503 
50 
505 504
WO 2021/112658 PCT/KR2021/001068 
[Fig. 12] 
506 
451 
50 jY443 
47 46 
[Fig. 13] 
501-I 
4 45 43 
[Fig. 14] 
507 
46 45 43 
507 5
WO 2021/112658 PCT/KR2021/001068 
[Fig. 15] 
34 273 271 
270 240 
310 320 
300 
311 330 
-300 
-- 241 
330
-242 
342 
343 
340 280 
360
WO 2021/112658 PCT/KR2021/001068 
[Fig. 16] 
270 
273 
271 
272- 240 
290 
311 
320 
330 
x ,
WO 2021/112658 PCT/KR2021/001068 
[Fig. 17] 
272 271 270 
275 
323 -274 
322 
321- 273 
320 
310 
35024 
290 
241 
uA
WO 2021/112658 PCT/KR2021/001068 
[Fig. 18] 
241 240 
31O0-,_A 
290 
A50AA 
31182 
A40-, 
A 
28 
/4 A8 4 4
WO 2021/112658 PCT/KR2021/001068 
[Fig. 19] 
160 
400 
71 
70 
410 420 48 6 73 
411 40 
100
430 4 
430' -- 415 
38 
100 
41 
440 42,50 
80
WO 2021/112658 PCT/KR2021/001068 
[Fig. 20] 
90 44 46 
103 
101 
109 
41 
50 
42 104 
43 
-1071 
--47 
430 102 412 
110
INTERNATIONAL SEARCH REPORT International application No.  
PCT/KR2021/001068 
A. CLASSIFICATION OF SUBJECT MATTER 
F25D 23/02(2006.01)i; E06B 3/70(2006.01)i; F25D 11/02(2006.01)i 
According to International Patent Classification (IPC) or to both national classification and IPC 
B. FIELDS SEARCHED 
Minimum documentation searched (classification system followed by classification symbols) 
F25D 23/02(2006.01); B21D 28/02(2006.01); B32B 3/10(2006.01); F25D 23/00(2006.01); F25D 23/10(2006.01) 
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched 
Korean utility models and applications for utility models 
Japanese utility models and applications for utility models 
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used) 
eKOMPASS(KIPO internal) & Keywords: refrigerator, door, upper, lower, cap, trim, fixer, decoration, panel, hole, buffer, magnet 
C. DOCUMENTS CONSIDERED TO BE RELEVANT 
Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.  
KR 10-2017-0093994 A (LG ELECTRONICS INC.) 16 August 2017 (2017-08-16) 
y paragraphs [0104], [0107], [0210]-[0214], [0224], [0260] and figures 1-3, 13-15 1-15 
KR 10-2003-0084071 A (LG ELECTRONICS INC.) 01 November 2003 (2003-11-01) 
y page 3, lines 33-46 and figures 2-3 1-15 
KR 10-2010-0057246 A (LG ELECTRONICS INC.) 31 May 2010 (2010-05-31) 
y paragraph [0041] and figure 2 11 
KR 10-2007-0068933 A (SAMSUNG ELECTRONICS CO., LTD.) 02 July 2007 (2007-07-02) 
Y claim 5 and figure 3 15 
KR 10-0751015 B I(LG ELECTRONICS INC.) 22 August 2007 (2007-08-22) 
y claim 4 and figure 5 15 
US 2010-0295425 Al (KIM, UNG-SU) 25 November 2010 (2010-11-25) 
A paragraphs [0032]-[0045] and figures 3-7 1-15 
Further documents are listed in the continuation of Box C. / See patent family annex.  
* Special categories of cited documents: "T" later document published after the international filing date or priority 
"A" document defining the general state of the art which is not considered date and not in conflict with the application but cited to understand the 
to be of particular relevance principle or theory underlying the invention 
"'D" document cited by the applicant in the international application " document of particular relevance; the claimed invention cannot be 
"E" earlier application or patent but published on or after the international considered novel or cannot be considered to involve an inventive step 
filing date when the document is taken alone 
"L" document which may throw doubts on priority claim(s) or which is "y" document of particular relevance; the claimed invention cannot be 
cited to establish the publication date of another citation or other considered to involve an inventive step when the document is 
special reason (as specified) combined with one or more other such documents, such combination 
" document referring to an oral disclosure, use, exhibition or other being obvious to a person skilled in the art 
means "'&" document member of the same patent family 
"p" document published prior to the international filing date but later than 
the priority date claimed 
Date of the actual completion of the international search Date of mailing of the international search report 
28 April 2021 28 April 2021 
Name and mailing address of the ISA/KR Authorized officer 
Korean Intellectual Property Office 
189 Cheongsa-ro, Seo-gu, Daejeon LEE, Eon Su 
35208, Republic of Korea 
Facsimile No. +82-42-481-8578 Telephone No. +82-42-481-8539 
Form PCT/ISA/210 (second sheet) (July 2019)
INTERNATIONAL SEARCH REPORT International application No.  
Information on patent family members PCT/KR2021/001068 
Patent document Publication date Publication date 
cited in search report (day/month/year) Patentfamilymember(s) (day/month/year) 
KR 10-2017-0093994 A 16 August 2017 CN 106796077 A 31 May 2017 
CN 106796077 B 14 January 2020 
CN 107076509 A 18 August 2017 
CN 107076509 B 01 September 2020 
CN 111306877 A 19 June 2020 
EP 3146281 Al 29 March 2017 
EP 3146281 B1 17 April 2019 
EP 3169958 Al 24 May 2017 
EP 3169958 B1 31 July 2019 
EP 3521737 Al 07 August 2019 
EP 3617624 Al 04 March 2020 
KR 10-2017-0095393 A 22 August 2017 
KR 10-2020-0015846 A 12 February 2020 
KR 10-2020-0015847 A 12 February 2020 
KR 10-2076190 B1 11 February 2020 
US 10578349 B2 03 March 2020 
US 10677510 B2 09June2020 
US 10677511 B2 09June2020 
US 10684064 B2 16 June 2020 
US 10690393 B2 23 June2020 
US 10746457 B2 18 August 2020 
US 10767918 B2 08 September 2020 
US 2018-0038626 Al 08 February 2018 
US 2018-0038627 Al 08 February 2018 
US 2018-0038634 Al 08 February 2018 
US 2018-0038635 Al 08 February 2018 
US 2018-0038636 Al 08 February 2018 
US 2018-0038637 Al 08 February 2018 
US 2019-0086141 Al 21 March 2019 
US 2020-0158420 Al 21 May 2020 
US 2020-0355423 Al 12 November 2020 
WO 2016-175562 Al 03 November 2016 
WO 2016-175563 Al 03 November 2016 
KR 10-2003-0084071 A 01 November 2003 None 
KR 10-2010-0057246 A 31 May 2010 KR 10-1520691 B1 15 May 2015 
KR 10-2007-0068933 A 02 July 2007 None 
KR 10-0751015 B1 22 August 2007 KR 10-2005-0104119 A 02 November 2005 
US 2010-0295425 Al 25 November 2010 CN 101890869 A 24 November 2010 
CN 101890869 B 04 September 2013 
KR 10-1602223 B1 10 March 2016 
KR 10-2010-0126093 A 01 December 2010 
US 8382220 B2 26 February 2013 
Form PCT/ISA/210 (patent family annex) (July 2019)