Refrigerator

Abstract

A refrigerator according to an embodiment includes: an ice-making chamber providing a space in which ice is generated; a cooler that supplies cold flow to the ice-making chamber or operates in order to supply cold flow; the ice maker is used for generating ice by using the cold flow; the ice maker includes: a first tray assembly having a first tray forming a part of an ice making unit, the ice making unit being a space in which water is phase-changed into ice using the cold flow; and a second tray assembly having a second tray forming another part of the ice making unit and a second tray housing provided on one side of the second tray.

Description

Technical Field

[0001] This specification relates to a refrigerator. Background Art

[0002] Generally, a refrigerator is a household appliance that can store food at a low temperature in an internal storage space shielded by a door. The refrigerator utilizes cold air to cool the inside of the storage space, thereby being able to preserve the stored food in a refrigerated or frozen state.

[0003] Typically, a refrigerator's freezer compartment includes an ice maker for making ice. The ice maker collects water from a water supply or tank into a tray and then cools the water to produce ice. The ice produced by the ice maker is stored in an ice bucket. A user can open the freezer door to access the ice bucket and remove the ice.

[0004] Korean Patent Publication No. 2021-0005783 (hereinafter referred to as “Conventional Document 1”) as a prior art document discloses a refrigerator.

[0005] The refrigerator of the prior art document 1 includes: a storage chamber that stores food; a first tray assembly that is provided in the storage chamber and forms a part of an ice-making unit as a space where water is transformed into ice by the cold phase; and a second tray assembly that forms another part of the ice-making unit.

[0006] In the case of the existing document 1, spherical ice can be formed using the first tray assembly and the second tray assembly, but there is a disadvantage in that the user must open the door in order to use the ice.

[0007] In the case of Conventional Document 1, a small amount of ice can be made at one time, so there is a disadvantage that a long waiting time is required when a large amount of ice is to be used.

[0008] In Chinese Patent Gazette No. 114174740A (hereinafter referred to as "Conventional Document 2"), which is a prior art document, an ice maker and an ice storage device provided on a refrigerator compartment door are disclosed.

[0009] The ice stored in the ice storage can be removed from the outside via a dispenser assembly. The ice maker includes: an elastic mold forming a cavity, formed of an elastic material; a heat exchanger connected to the elastic mold for freezing the water in the cavity; a lifting mechanism for easily discharging the ice from the cavity; and a drive mechanism for driving the lifting mechanism. The drive mechanism includes a motor and a rotating cam.

[0010] Conventional Document 2 suffers from the disadvantage of not being able to produce spherical ice. Because the lifting mechanism applies pressure to the elastic mold from below, the ice is difficult to separate from the elastic mold and falls downward. To completely separate the ice from the elastic mold, the lifting mechanism's vertical movement width must be increased. This, in turn, requires a larger rotary cam, which increases the overall size of the ice maker. Summary of the Invention

[0011] Problems to be solved by the invention

[0012] In one embodiment, a refrigerator is provided that can increase the amount of ice generated in one ice making operation.

[0013] Alternatively or additionally, in one embodiment, a refrigerator capable of smoothly separating ice from each of a plurality of ice-making units is provided.

[0014] Alternatively or additionally, in one embodiment, a refrigerator is provided in which the shape of the tray can maintain the original shape after ice removal is completed.

[0015] Alternatively or additionally, in one embodiment, a refrigerator capable of generating spherical ice on a door is provided.

[0016] Alternatively or additionally, in one embodiment, a refrigerator is provided that can easily draw out produced ice from a dispenser in a door.

[0017] Technical solutions to the problem

[0018] In one aspect, a refrigerator may include an ice-making chamber providing a space for generating ice. The refrigerator may also include a cooler. The cooler may supply cold air to the ice-making chamber or operate to supply cold air. The ice-making chamber may be provided in the housing and / or the door.

[0019] The refrigerator may further include an ice maker. The ice maker may be located in the ice making compartment. The ice maker may include a first tray assembly. The first tray assembly may form part of an ice making unit, which is a space where water transforms into ice using the cold flow. The ice maker may further include a second tray assembly. The second tray assembly may form another part of the ice making unit.

[0020] The first tray assembly may include a first tray. The second tray assembly may include a second tray.

[0021] The second tray may include a first surface having a surface facing the ice-making unit or forming the ice-making unit. The second tray may further include a second surface having a surface forming a thickness together with the first surface.

[0022] The second side of the second tray may include a first portion having a portion corresponding to the shape of the ice-making unit. The second side may further include a second portion extending from the first portion.

[0023] The second portion may include a first portion, a second portion spaced apart from the second portion, and a plate connecting the first portion and the second portion.

[0024] The second tray housing may include a first region having a surface facing or in contact with the first portion of the second tray. The second tray housing may also include a second region having a surface facing or in contact with the second portion of the second tray.

[0025] The second region of the second tray housing may further include: a first section; a second section spaced apart from the first section; and a plate connecting the first section and the second section.

[0026] The second portion of the second tray or the second region of the second tray housing may include a surface extending in a direction transverse to the surface where the first tray component and the second tray component contact each other. As an example, the surface may form a groove, a protrusion, or a boss.

[0027] The second tray housing may include a first surface having a surface facing the second tray or in contact with the second tray. The second tray housing may also include a second surface having a surface forming a thickness together with the first surface.

[0028] The second side of the second tray housing may include a first portion and a second portion extending from the first portion.

[0029] The second portion of the second tray housing may include a first portion, a second portion spaced apart from the first portion, and a plate connecting the first portion and the second portion.

[0030] The second tray housing may be provided with a reinforcement portion having a surface facing the second portion or in contact with the second portion. The reinforcement portion may include: a portion A; a portion B spaced apart from the portion A; and a plate connecting the portion A and the portion B.

[0031] The reinforcing portion may be formed of a material different from a material of the second surface of the second tray housing.

[0032] The ice making units may be arranged along the first column and the second column. In one embodiment, the reinforcing portion or the second part of the second tray housing may be arranged between the first column and the second column.

[0033] The reinforcement or second portion of the second tray housing may include a surface extending in a direction transverse to the surface where the first and second tray assemblies contact each other.

[0034] From another aspect, the second tray may include a support surface. The support surface may provide a second portion of the second tray. The second tray housing may include a support area facing or in contact with the support surface.

[0035] The supporting area of ​​the second tray housing may include: a third portion; a fourth portion spaced apart from the third portion; and a plate connecting the third portion and the fourth portion.

[0036] The supporting surface of the second tray may include: a first surface; a second surface spaced apart from the first surface; and a connecting surface connecting the first surface and the second surface.

[0037] The support surface of the second tray or the support area of ​​the second tray housing may be arranged between the first column and the second column.

[0038] From another perspective, the second tray housing may include a support portion. The second tray housing may be provided with a reinforcement portion, wherein the reinforcement portion includes a surface facing the support portion or in contact with the support portion.

[0039] The reinforcing portion may be made of a material different from that of the supporting portion of the second tray housing. The reinforcing portion may include: a portion A; a portion B spaced apart from the portion A; and a plate connecting the portion A and the portion B.

[0040] The supporting portion of the second tray housing may include: a first portion; a second portion spaced apart from the first portion; and a plate connecting the first portion and the second portion.

[0041] The reinforcing portion of the second tray housing or the supporting portion of the second tray housing may be disposed between the first column and the second column.

[0042] From another perspective, the second tray may include a support surface, and the second tray housing may include a support area facing the support surface of the second tray or in contact with the support surface of the second tray. The second tray housing may include: a support portion; a reinforcement portion including a surface facing the support portion of the second tray housing or in contact with the support portion of the second tray housing; and a plate connecting the support area of ​​the second tray housing and the reinforcement portion of the second tray housing.

[0043] In another aspect, a refrigerator may include a housing having a storage compartment. The refrigerator may also include a door for opening and closing the storage compartment. The refrigerator may also include an ice-making chamber disposed on the door. The refrigerator may also include an ice-making machine disposed in the ice-making chamber and producing ice. The refrigerator may also include an ice bucket for storing ice produced by the ice-making machine. The refrigerator may also include a dispenser disposed on the door for discharging ice stored in the ice bucket.

[0044] The ice maker may include a first tray. The ice maker may include the second tray and the second tray housing.

[0045] In another aspect, the ice maker may include: a first tray forming part of an ice-making unit, the ice-making unit being a space where water is transformed into ice by the cold flow; a second tray forming another part of the ice-making unit; a second tray support member contacting the second tray, a part of the second tray penetrating the second tray support member; and a base portion connected to the second tray support member and the second tray penetrating the second tray support member.

[0046] The second tray may include a cell wall forming the ice-making unit and a rod extending from the cell wall.

[0047] The second tray support may include a support opening through which the cell wall passes, and an extension opening extending from the support opening and through which the rod passes.

[0048] The base portion may include a first extension coupled to the rod. The base portion may also include a second extension coupled to the second tray support.

[0049] The ice-making units may be arranged along a first column and a second column. The first extension may be arranged between the first column and the second column. Alternatively, the first extension may be arranged between two adjacent ice-making units in the second column. The first extension and the second extension may be spaced apart in a direction parallel to the arrangement direction of the first column and the second column. The base portion may further include a third extension coupled to the second tray support. The third extension may be arranged between two adjacent ice-making units in the first column. The third extension may be closer to the first column than the second column. The second extension may be closer to the second column than the first column.

[0050] The base portion may include a plate connecting the first extension portion and the second extension portion. The base portion may also include a plate connecting the first extension portion and the third extension portion. Alternatively, the third extension portion may be formed on the plate connecting the first extension portion and the second extension portion.

[0051] Effects of the Invention

[0052] According to one embodiment, there is an advantage in that the amount of ice generated in one ice making operation can be increased.

[0053] According to one embodiment, there is an advantage in that ice can be smoothly separated from each of the plurality of ice making units.

[0054] According to one embodiment, there is an advantage that the shape of the tray deformed during the ice removal process can be restored to the original shape and maintain the original shape after the ice removal is completed.

[0055] According to one embodiment, there is an advantage in that spherical ice can be generated in a refrigerator door.

[0056] According to one embodiment, the generated ice can be easily led out from the dispenser of the door. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 (A) is a front view of the refrigerator of the first embodiment, Figure 1 (B) is a diagram showing a state in which one door of the refrigerator is separated.

[0058] Figure 2 (A) is a perspective view of the first embodiment as viewed from the front of the first refrigerating chamber door. Figure 2 (B) is a perspective view of the first embodiment as viewed from the back side of the first refrigerating chamber door.

[0059] Figure 3 (A) is a diagram showing a state where the basket and the filter are separated from the refrigerator door. Figure 3 (B) is a diagram showing a state in which the ice making compartment door and the cover member are separated from the first refrigerating compartment door.

[0060] Figure 4 It is along Figure 2 (A) is a cross-sectional view taken along line 4-4.

[0061] Figure 5 (A) is a diagram showing a state in which the cold air duct is connected to the door lining according to the first embodiment. Figure 5 (B) is a diagram of the ice making chamber wall of the door liner of the first embodiment.

[0062] Figure 6 This is a diagram showing a state in which the ice maker according to the first embodiment is installed on a supporting member.

[0063] Figure 7 1 is a diagram showing the arrangement relationship between the ice maker and the cold air duct according to the first embodiment.

[0064] Figure 8 (A) is a perspective view of the ice maker according to the first embodiment as viewed from the upper side. Figure 8(B) is a perspective view of the ice maker according to the first embodiment viewed from the other upper side.

[0065] Figure 9 (A) is a front view of the ice making machine of the first embodiment, Figure 9 (B) is a perspective view of the ice maker according to the first embodiment as viewed from the bottom.

[0066] Figure 10 It is an exploded perspective view of the ice making machine according to the first embodiment.

[0067] Figure 11 It is an exploded front view of the ice maker according to the first embodiment.

[0068] Figure 12 (A) is a perspective view of the first tray of the first embodiment viewed from above. Figure 12 (B) is a perspective view of the first tray according to the first embodiment as viewed from the bottom.

[0069] Figure 13 (A) is a perspective view of the first tray cover of the first embodiment viewed from above, Figure 13 (B) is a perspective view of the first tray cover according to the first embodiment as viewed from the bottom.

[0070] Figure 14 (A) is a perspective view of the second tray assembly of the first embodiment viewed from above. Figure 14 (B) is a perspective view of the second tray assembly of the first embodiment viewed from the bottom.

[0071] Figure 15 (A) is a perspective view of the second tray cover according to the first embodiment as viewed from above. Figure 15 (B) is a perspective view of the second tray cover according to the first embodiment as viewed from the bottom.

[0072] Figure 16 (A) is a perspective view of the second tray of the first embodiment viewed from one side. Figure 16 (B) is a perspective view of the second tray according to the first embodiment as viewed from the other side.

[0073] Figure 17 This is a perspective view of the second tray of the first embodiment as viewed from the bottom.

[0074] Figure 18 (A) is a perspective view of the second tray support member of the first embodiment viewed from the upper side. Figure 18 (B) is a perspective view of the second tray support member of the first embodiment viewed from the bottom.

[0075] Figure 19 FIG. 1 is a cross-sectional view of the ice maker showing the water supply position of the second tray assembly of the first embodiment.

[0076] Figure 20 FIG. 1 is a cross-sectional view of the ice maker showing the second tray assembly of the first embodiment at an ice making position.

[0077] Figure 21 2 is a cross-sectional view of the ice maker showing a state in which the second tray assembly moves to an ice full sensing position during an ice removal process.

[0078] Figure 22 (A) is a cross-sectional view of the ice maker showing a state in which the first rod of the second push rod is in contact with the second tray, Figure 22 (B) is a cross-sectional view of the ice maker showing a state in which the second rod of the second push rod is in contact with the second tray.

[0079] Figure 23 (A) is a diagram showing a state in which the first rod of the second push rod presses the second tray at the ice moving position. Figure 23 (B) is a diagram showing a state in which the second rod of the second push rod presses the second tray at the ice moving position.

[0080] Figure 24 It is a control block diagram of the refrigerator of the first embodiment.

[0081] Figure 25 (A) is a perspective view of the second tray assembly of the second embodiment viewed from the upper side. Figure 25 (B) is a bottom view of the second tray assembly of the second embodiment.

[0082] Figure 26 It is an exploded perspective view of the second tray assembly of the second embodiment.

[0083] Figure 27 (A) is a perspective view of the second tray cover of the second embodiment viewed from above, Figure 27 (B) is a perspective view of the second tray cover according to the second embodiment as viewed from the bottom.

[0084] Figure 28 (A) is a perspective view of the second tray of the second embodiment viewed from above. Figure 28 (B) is a perspective view of the second tray according to the second embodiment as viewed from the bottom.

[0085] Figure 29 (A) is a top view of the second tray of the second embodiment, Figure 29 (B) is a side view of the second tray of the second embodiment.

[0086] Figure 30 (A) is a perspective view of the second tray support member of the second embodiment viewed from the upper side. Figure 30 (B) is a bottom view of the second tray support member of the second embodiment.

[0087] Figure 31 (A) is a perspective view showing the lower structure of the second tray support member of the second embodiment, Figure 31 (B) is a top view of the second tray support member of the second embodiment.

[0088] Figure 32 (A) is a perspective view of the base portion of the second embodiment, Figure 32 (B) is a top view of the base portion of the second embodiment.

[0089] Figure 33 (A) is a front view of the base portion of the second embodiment, Figure 33 (B) is a side view of the base portion of the second embodiment.

[0090] Figure 34 (A) is a diagram showing a second tray and a second tray support member combined in accordance with the second embodiment. Figure 34 (B) is shown in Figure 34 (A) is a diagram showing the configuration of the combined base portion.

[0091] Figure 35 (A) is along Figure 34 (B) is a cross-sectional view taken along line 35A-35A, Figure 35 (B) is along Figure 34 (B) is a cross-sectional view taken along line 35B-35B.

[0092] Figure 36 (A) is along Figure 34 (B) is a cross-sectional view taken along line 36A-36A, Figure 36 (B) is along Figure 34 (B) is a cross-sectional view taken along line 36B-36B. DETAILED DESCRIPTION

[0093] In this specification, at least one of component A and component B may be interpreted as including component A or component B, or component A + B. In addition, at least one of component A or component B may be interpreted as including component A or component B, or component A + B.

[0094] Figure 1 (A) is a front view of the refrigerator of the first embodiment, Figure 1 (B) is a diagram showing a state in which one door of the refrigerator is separated.

[0095] Figure 2 (A) is a perspective view of the first embodiment as viewed from the front of the first refrigerating chamber door. Figure 2 (B) is a perspective view of the first embodiment as viewed from the back side of the first refrigerating chamber door. Figure 3 (A) is a diagram showing a state where the basket and the filter are separated from the refrigerator door. Figure 3 (B) is a diagram showing a state in which the ice making compartment door and the cover member are separated from the first refrigerating compartment door.

[0096] Reference Figures 1 to 3 The refrigerator 1 of this embodiment may include a housing 2. The housing 2 may have a storage compartment. The refrigerator 1 may further include a door for opening and closing the storage compartment. The door may be movably connected to the housing 2.

[0097] The storage room may include a refrigerating room 18. The storage room may optionally or additionally include a freezing room 19. As an example, Figure 1 (B) shows that the storage compartment includes a refrigerating compartment 18 and a freezing compartment 19 .

[0098] The door may include a refrigerator door 5 for opening and closing the refrigerator compartment 18. The refrigerator compartment 18 may be opened and closed by one or more refrigerator doors 5. The door may also include a freezer door 30 for opening and closing the freezer compartment 19. The freezer compartment 19 may be opened and closed by one or more freezer doors 30.

[0099] Hereinafter, the case where the refrigerating compartment 18 is opened and closed by the first refrigerating compartment door 10 and the second refrigerating compartment door 20 will be described as an example.

[0100] At least one of the first refrigerating compartment door 10 and the second refrigerating compartment door 20 may include a dispenser 11 for discharging water and / or ice. Of course, the freezer compartment door 30 may also have the dispenser 11 depending on the type of refrigerator.

[0101] At least one of the first refrigerating compartment door 10 and the second refrigerating compartment door 20 may include at least one ice maker 200 .

[0102] If a refrigerator includes multiple ice makers, the types of ice produced by the multiple ice makers may be the same or different. The sizes (or volumes) of ice produced by the multiple ice makers may be the same or different. The transparency of ice produced by the multiple ice makers may be the same or different. The structures used to produce ice and the methods of separating the produced ice may be the same or different in the multiple ice makers.

[0103] The following description uses the case where the ice maker 200 is installed in the first refrigerator compartment door 10 as an example. Of course, the ice maker can also be installed in the second refrigerator compartment door 20 or the freezer compartment door 30 as needed. In this case, the dispenser 11 and the ice maker can be installed in the same door. Alternatively, a separate ice maker can be installed in the refrigerator compartment 18 or the freezer compartment 19.

[0104] Figure 1(B) exemplarily shows that the refrigerator 1 is a bottom freezer type refrigerator. However, the concept of the present invention can also be applied to a side-by-side type refrigerator or a top-mount type refrigerator. In the case of a side-by-side type refrigerator or a top-mount type refrigerator, the freezer door can include an ice maker and dispenser, or the refrigerator door can include an ice maker and dispenser.

[0105] The dispenser 11 may be located on the front of the first refrigerating chamber door 10. A portion of the dispenser 11 may be recessed rearward to provide a space for placing a container.

[0106] The dispenser 11 may discharge ice generated in the ice maker 200. At least a portion of the ice maker 200 may be located higher than the dispenser 11.

[0107] The first refrigerator compartment door 10 may include an outer shell 101. The outer shell 101 may form the front appearance of the first refrigerator compartment door 10. The first refrigerator compartment door 10 may also include a door lining 102. The door lining 102 may be directly or indirectly connected to the outer shell 101. The door lining 102 may open and close the refrigerator compartment 18.

[0108] When the outer shell 101 and the door lining 102 are connected, an insulating space can be formed between them. A thermal insulation member can be provided in the insulating space. The insulating member can be formed by curing a foamed liquid injected from the outside. Alternatively, a vacuum insulator can be provided in the insulating space. The insulating member and the vacuum insulator can also be provided together in the insulating space.

[0109] The refrigerator 1 may include an ice-making chamber 122 that provides a space for producing ice. For example, the ice-making chamber 122 may be provided in the first refrigerator compartment door 10. The ice-making machine 200 may be provided in the ice-making chamber 122. For example, the door lining 102 may form the ice-making chamber 122. The ice-making chamber 122 may be formed by recessing one side of the door lining 102 toward the outer housing 101.

[0110] The first refrigerator door 10 may further include an ice bucket 600 for storing ice produced by the ice maker 200. The ice stored in the ice bucket 600 may be discharged to the dispenser 11. The ice bucket 600 may be housed in the ice making chamber 122 together with the ice maker 200. The ice bucket 600 may be located below the ice maker 200.

[0111] The cold air generated in the cooler may be supplied to the ice making chamber 122. That is, the cooler may be configured to supply the cold air to the ice making chamber 122. Alternatively, the cooler may be configured to operate in order to supply the cold air to the ice making chamber 122.

[0112] The cooler may include at least one of a refrigerant cycle and a thermoelectric element to cool the ice-making chamber 122. For example, cold air for cooling the freezing chamber 19 may be supplied to the ice-making chamber 122.

[0113] The refrigerator 1 may further include a supply flow path 2a that guides cold air from the freezer compartment 19 or the space where an evaporator generating cold air for cooling the freezer compartment 19 is located, to the first refrigerating compartment door 10. The refrigerator 1 may also include a discharge flow path 2b that guides cold air discharged from the first refrigerating compartment door 10 to the freezer compartment 19 or the space where the evaporator is located. The supply flow path 2a and the discharge flow path 2b may be provided in the cabinet 2.

[0114] The first refrigerating chamber door 10 may include a cold air inlet 123a. If the first refrigerating chamber door 10 is closed, the cold air inlet 123a may be in communication with the supply flow path 2a. The first refrigerating chamber door 10 may further include a cold air outlet 123b. If the first refrigerating chamber door 10 is closed, the cold air outlet 123b may be in communication with the exhaust flow path 2b. The cold air inlet 123a may be formed on a side surface of the door lining 102. Although not restrictive, a side surface of the door lining 102 is a surface facing the wall in which the supply flow path 2a is provided in the refrigerating chamber 18 when the first refrigerating chamber door 10 is closed. The cold air outlet 123b may be formed on a side surface of the door lining 102. Although not restrictive, a side surface of the door lining 102 is a surface facing the wall in which the exhaust flow path 2b is provided in the refrigerating chamber 18 when the first refrigerating chamber door 10 is closed.

[0115] The ice maker 200 can generate spherical ice. The "spherical" mentioned in this specification not only refers to a geometric sphere, but also refers to a shape similar to a sphere.

[0116] The side surface of the door lining 102 may include a first side surface portion 102a and a second side surface portion 102b having different widths in the front-to-back direction. The width of the second side surface portion 102b may be greater than the width of the first side surface portion 102a. At least one of the cold air inlet 123a and the cold air outlet 123b may be formed on the second side surface portion 102b of the door lining 102. The second side surface portion 102b may protrude further toward the refrigeration compartment 18 than the first side surface portion 102a.

[0117] The first refrigerating chamber door 10 may further include an ice making chamber door 130 for opening and closing the ice making chamber 122. The ice making chamber door 130 may be an insulated door with an insulating member disposed therein. The ice making chamber door 130 may be rotatably connected to the first refrigerating chamber door 10 by a hinge.

[0118] On the other hand, a basket 136 (first basket) for storing food can be connected to the ice making chamber door 130. Of course, a basket 137 (second basket) can also be set on the first refrigerator chamber door 10. As an example, the second basket 137 can be set below the first basket 136.

[0119] A component space 123 for accommodating components may be formed in the first refrigerator compartment door 10. The component space 123 may accommodate at least one of a valve 750 for regulating the flow of water, a filter (not shown) for purifying water, and a water tank 700 for storing water. The component space 123 may be formed by the door lining 102. The first refrigerator compartment door 10 may further include a cover member 132 covering the component space 123. A retainer 125 for coupling the filter may be provided in the component space 123.

[0120] The cover member 132 may include an opening 133. The filter may be coupled to the holder 125 through the opening 133. The second basket 137 may cover the opening 133. If the second basket 137 is separated, the opening 133 may be exposed. The holder 125 may be exposed toward the opening 133.

[0121] Figure 4 It is along Figure 2 (A) is a cross-sectional view taken along line 4-4.

[0122] Reference Figure 3 and Figure 4 The dispenser 11 may include a dispenser cover 11a. The dispenser cover 11a may define a space 11b. A container such as a cup may be placed in the space 11b. Water or ice may be discharged into the space 11b. At least a portion of the ice making chamber 122 may overlap with the component space 123 in the vertical direction.

[0123] The ice maker 200 may overlap the dispenser cover 11a in the vertical direction. The ice bucket 600 may overlap the dispenser cover 11a in the vertical direction. As will be described later, the ice maker 200 may include a second push rod 530. The second push rod 530 may overlap the ice bucket 600 in the vertical direction. The second push rod 530 may overlap the dispenser cover 11a in the vertical direction.

[0124] The ice bucket 600 may include an ice discharge unit 630 that operates to discharge stored ice. For example, the ice discharge unit 630 may include a rotating member that rotates.

[0125] An ice chute 800 may be disposed below the ice-making chamber 122. The ice chute 800 may be opened and closed by a cover duct 820. An ice guide 840 may be disposed below the ice chute 800. The ice chute 800 may provide a passage for ice movement. The ice chute 800 may guide ice discharged from the ice bucket 600 toward the ice guide 840. The ice guide 840 may provide a passage for ice movement. The ice guide 840 may guide the ice into the space 11b. The ice chute 800 may vertically overlap at least a portion of the ice-making chamber 122. At least a portion of the ice chute 800 may vertically overlap the ice-making machine 200.

[0126] The second push rod 530 may vertically overlap the ice chute 800, the cover duct 820, and the ice guide 840.

[0127] As will be described later, the ice maker 200 may further include a first push rod 510. The second push rod 530 may be closer to the outer shell 101 than the first push rod 510. The horizontal distance between the second push rod 530 and the front surface of the outer shell 101 may be shorter than the horizontal distance between the channel in which the ice chute 800 is formed and the front surface of the outer shell 101.

[0128] The first push rod 510 may vertically overlap the ice discharge portion 630 , the ice chute 800 , and the ice guide 840 .

[0129] The ice maker 200 may overlap with the water tank 700 in a vertical direction.

[0130] Figure 5 (A) is a diagram showing a state in which the cold air duct is connected to the door lining according to the first embodiment. Figure 5 (B) is a diagram of the ice making chamber wall of the door lining of the first embodiment, Figure 6 This is a diagram showing a state in which the ice maker according to the first embodiment is installed on a supporting member. Figure 7 1 is a diagram showing the arrangement relationship between the ice maker and the cold air duct according to the first embodiment.

[0131] Reference Figures 5 to 7The door liner 102 may include an ice making chamber wall 140 forming the ice making chamber 122. The door liner 102 may further include a peripheral wall 102c. The peripheral wall 102c may be spaced apart from the ice making chamber wall 140 on the outside of the ice making chamber wall 140.

[0132] The first refrigerating chamber door 10 may further include a cold air duct 900. The cold air duct 900 may guide the cold air flowing in through the cold air inlet 123a to the ice-making chamber 122. The cold air duct 900 may guide the cold air in the ice-making chamber 122 to the cold air outlet 123b.

[0133] The cold air duct 900 may include a first duct 910 forming a first flow path. The first flow path may connect the cold air inlet 123a and the ice making chamber 122. The cold air duct 900 may also include a second duct 920. The second duct 920 may form the first flow path together with the first duct 910.

[0134] A portion of the first duct 910 may be aligned with the cold air inlet 123a. A portion of the second duct 920 may contact the ice-making chamber wall 140. A first through hole 140a may be formed in the ice-making chamber wall 140. The first through hole 140a is a supply hole for supplying cold air to the ice-making chamber 122. A portion of the second duct 920 may be aligned with the first through hole 140a. One surface of the second duct 920 may form the first flow path.

[0135] The cold air duct 900 may further include a third duct 930. The third duct 930 may form a second flow path. The second flow path may connect the cold air outlet 123a and the ice-making chamber 122. The third duct 930 may form the second flow path together with the second duct 920. As an example, the second flow path may be formed on the other side of the second duct 920. A second through hole 140b may be formed in the ice-making chamber wall 140. The second through hole 140b is an exhaust hole for exhausting cold air from the ice-making chamber 122. The second through hole 140b may be located below the first through hole 140a. Another portion of the second duct 920 may be aligned with the cold air outlet 123b. A portion of the third duct 930 may be aligned with the second through hole.

[0136] In the case where the ice maker 200 is provided on the freezing chamber door 30 , the cold air duct 900 may be omitted.

[0137] The ice-making chamber wall 140 may include a front wall 141. The front wall 141 may be a wall facing the outer shell 101. The ice-making chamber wall 140 may also include a first side wall 143. The ice-making chamber wall 140 may also include a second side wall 144 disposed opposite the first side wall 143. The cold air duct 900 may be disposed between the second side wall 144 and the peripheral wall 102c. The first through hole 140a and the second through hole 140b may be formed in the second side wall 144. The ice-making chamber wall 140 may also include an upper side wall 142. The ice-making chamber wall 140 may also include a lower side wall 148.

[0138] The first refrigerator compartment door 10 may further include a support member 150 for mounting the ice maker 200. The support member 150 may be mounted on the ice making compartment wall 140. As another example, a portion or all of the support member 150 may be integrally formed with the ice making compartment wall 140. Alternatively, the support member 150 may be omitted and the ice maker 200 may be mounted on the ice making compartment wall 140. In either case, the description will be based on the case where the ice maker 200 is supported by the ice making compartment wall 140.

[0139] The support member 150 may include a first member 152. The first member 152 may extend in the vertical direction. The ice maker 200 may be installed in the first member 152. The first member 152 may include a mounting member 155. The mounting member 155 may be located on the upper side of the first member 152. For example, the first member 152 may include a groove 154 through which a portion of the ice maker 200 passes. The motor assembly for driving the ice discharge portion 630 of the ice bucket 600 may be mounted in the first member 152.

[0140] The support member 150 may further include a second member 153. The second member 153 may extend horizontally from the first member 152. The ice bucket 600 may be mounted on the second member 153. The second member 153 may have an ice through hole 153a formed therein for ice to pass through.

[0141] The ice maker 200 may further include a bracket 220 supported by the support member 150 or the ice making chamber wall 140 . In the case where the ice maker 200 is directly supported by the ice making chamber wall 140 , the ice maker 200 may be supported by the front wall 141 .

[0142] Figure 8 (A) is a perspective view of the ice maker according to the first embodiment as viewed from the upper side. Figure 8 (B) is a perspective view of the ice maker according to the first embodiment viewed from the other side of the upper portion. Figure 9 (A) is a front view of the ice making machine of the first embodiment, Figure 9 (B) is a perspective view of the ice maker according to the first embodiment as viewed from the bottom. Figure 10 is an exploded perspective view of the ice maker of the first embodiment. Figure 11 It is an exploded front view of the ice maker according to the first embodiment.

[0143] Reference Figures 4 to 11 The ice maker 200 may include a first tray assembly 201. The first tray assembly 201 may form a portion of an ice making unit 203. The ice maker 200 may also include a second tray assembly 202. The second tray assembly 202 may form another portion of the ice making unit 203. The ice making unit 203 is a space where water undergoes a phase change using cold flow.

[0144] A driving unit 480 may be mounted on one side of the bracket 220. The driving unit 480 may provide driving force to the second tray assembly 202. The first tray assembly 201 may be mounted on the bracket 220. The second tray assembly 202 may move relative to the first tray assembly 201. For example, the second tray assembly 202 may move linearly, curvilinearly, or rotationally.

[0145] The drive unit 480 may include a motor housing 481. The drive unit 480 may also include a motor and a power transmission unit housed in the motor housing 481. A fastening portion 482 may be formed on the upper side of the motor housing 481. The fastening portion 482 may be fastened to the bracket 220 by a fastening member. The drive unit 480 may be arranged adjacent to the first side wall 143. In other words, the drive unit 480 may be located on the opposite side of the first through hole (inflow through hole) 140a through which cool air flows.

[0146] The ice maker 200 may further include a full ice sensing lever 550 for sensing whether the ice bucket 600 is full of ice. One end of the full ice sensing lever 550 may be connected to the driving unit 480 , and the other end of the full ice sensing lever 550 may be connected to the bracket 220 .

[0147] The ice making chamber wall 140 may be provided with a recessed portion formed at a position corresponding to the driving unit 480. The recessed portion may include a first recessed portion 145a formed on the first side wall 143. The recessed portion may also include a second recessed portion 145b formed on the front wall 141.

[0148] The ice making compartment wall 140 may further include a third recessed portion 145c in which a portion of the support member 150 is disposed. The third recessed portion 145c may be formed in the front wall 141. The third recessed portion 145c may be connected to the second recessed portion 145b.

[0149] The ice maker 200 may further include a cold flow guide. The cold flow guide may provide a channel for supplying a cold flow to the ice making unit 203. The cold flow guide may be provided outside the ice making unit 203. Below, the case where the cold flow is cold air is described as an example. As an example, the cold flow guide may include a cold air guide 270. Therefore, all the components described in the cold air guide may be understood as the components of the cold flow guide. In this specification, the channel for supplying a cold flow to the ice making unit 203 may be formed by the cold air guide, the first tray, and the first tray cover. Therefore, at least a portion of each of the cold air guide, the first tray, and the first tray cover may function as the cold flow guide.

[0150] The cool air guide 270 may be adjacent to or in contact with the second side wall 144. The cool air guide 270 may be a separate structure from the first tray housing described later or a part of the first tray housing.

[0151] The driving unit 480 may be located on the opposite side of the second side wall 144 or the cold air guide 270 relative to the ice maker 200. The ice making chamber wall 140 may have grooves 146 and 147 formed therein for passing at least one of a water pipe for water flow and a connector (or wire) for connecting to the ice maker 200. The grooves 146 and 147 may be formed in the front wall 141.

[0152] A portion of the water may be converted into ice while being contained in a portion of the ice-making unit 203 formed by the first tray assembly 201. Another portion of the water may be converted into ice while being contained in another portion of the ice-making unit 203 formed by the second tray assembly 202. When ice making is complete, a portion of the ice may be in contact with the first tray assembly 201. When ice making is complete, another portion of the ice may be in contact with the second tray assembly 202.

[0153] The first tray assembly 201 may include a first tray 320. The first tray 320 may form a portion of each of the plurality of ice-making units 203.

[0154] At least a portion of the first tray 320 may be formed of a metal material to facilitate smooth transfer of cool air. The first tray assembly 201 may include a first tray housing. The first tray housing may include a portion that contacts or supports the first tray 320.

[0155] The first tray housing may further include a first tray cover 300. The first tray cover 300 may be combined with the first tray 320. The first tray cover 300 may be located on one side of the first tray 320.

[0156] The first tray 320 may be coupled to the bracket 220. For example, the first tray cover 300 may be coupled to one side of the first tray 320. Alternatively, if the bracket 220 is omitted, the first tray 320 may be coupled to the support member 150 or the ice making compartment wall 140.

[0157] The ice maker 200 may further include a heater 330 for providing heat to the ice making unit 203. As an example, the first tray assembly 201 may include the heater 330.

[0158] The heater 330 may be operated at least during the ice removal process after ice making is completed, thereby providing heat to the first tray 320. The heater 330 may function as an ice removal heater. The heater 330 may be in contact with the first tray 320.

[0159] The first tray assembly 201 may include a heater housing 340 (or heater cover).

[0160] The heater housing 340 may include a portion that contacts or is supported by the heater 330. The heater housing 340 may cover the heater 330. The heater housing 340 may be a separate body from the first tray cover 300 or may be integrally formed with the first tray cover 300.

[0161] The heater housing 340 can pressurize the heater 330 toward the first tray 320. The heater housing 340 can be located between the first tray 320 and the first tray cover 300. As an example, the heater housing 340 can be located above a portion of the first tray 320 and below a portion of the first tray cover 300.

[0162] The second tray assembly 202 may include a second tray 360. The second tray 360 may form another portion of each of the plurality of ice-making units 203.

[0163] At least a portion of the second tray 360 may be formed of a deformable material to facilitate ice separation.

[0164] The second tray assembly 202 may further include a second tray housing. The second tray housing may include a portion that contacts or supports the second tray 360.

[0165] The second tray housing may include a second tray cover 350. A portion of the second tray cover 350 may be located closer to the first tray 320 than a portion of the second tray 360. The second tray housing may also include a second tray support 380. A portion of the second tray support 380 may be located farther from the first tray 320 than a portion of the second tray 360.

[0166] The ice maker 200 may further include a water supply unit 240 for supplying water to the ice making units. The water supply unit 240 may supply water to a portion of the plurality of ice making units. The water supply unit 240 may be mounted on the bracket 220. The water supply unit 240 may include a groove 242 through which a water supply pipe passes. The water supply unit 240 may include a through hole 241 for draining water.

[0167] For example, the cold air guide 270 may be provided on the bracket 220, the first tray 320, or the first tray cover 300. The cold air guide 270 may guide cold air to the ice-making unit 203. The cold air guide 270 may be in contact with the first tray assembly 201. The cold air guide 270 may be in contact with at least one of the first tray 320 and the first tray cover 300.

[0168] A portion of the cool air guide 270 may be located on the opposite side of the drive unit 480 relative to the first tray assembly 201. Cool air guided by the cool air guide 270 may flow toward the drive unit 480. The configuration of the drive unit 480 can prevent the drive unit 480 from acting as a flow resistance for cool air.

[0169] The ice maker 200 may further include a temperature sensor 710 for sensing the temperature of water or ice in the ice making unit. For example, the temperature sensor 710 may sense the temperature of the first tray 320. The temperature sensor 710 may be mounted on the first tray 320. The temperature sensor 710 may be covered by a heat insulating member 720. The heat insulating member 720 may prevent cold air from directly contacting the temperature sensor 710.

[0170] The ice maker 200 may further include transmission components 420 and 421 for transmitting power from the driving component 480. For example, the power from the driving component 480 may be transmitted to the second tray assembly 202 via the plurality of transmission components 420 and 421. A first transmission component 420 of the plurality of transmission components 420 and 421 may be connected to the driving component 480. The first transmission component 420 may be coupled to one side of the second tray support 380. The second transmission component 421 of the plurality of transmission components 420 and 421 may be coupled to the other side of the second tray support 380.

[0171] The ice maker 200 may further include a shaft 410 coupled to the plurality of transmission parts 420 and 421. The first transmission part 420 may be movably supported on one side of the first tray 320. The second transmission part 421 may be movably supported on the other side of the first tray 320.

[0172] The transfer parts 420, 421 and the first tray 320 can be made of different materials. For example, the transfer parts 420, 421 can be plastic injection molded. The intermediate member 416 can be coupled to one of the transfer parts 420, 421 and the first tray 320 to prevent direct friction between the two components of different materials. For example, the intermediate member 416 can be coupled to the first tray 320. The transfer parts 420, 421 can penetrate the intermediate member 416 and contact the intermediate member 416.

[0173] The ice maker 200 may further include a first push rod 510 for applying pressure to the ice or the first tray assembly 201 during ice removal. The first push rod 510 may push the ice, thereby separating the ice from the first tray 320. For example, the first push rod 510 may extend through the first tray cover 300 to push the ice. The first push rod 510 may extend through the first tray 320 to push the ice.

[0174] The first push rod 510 can receive power from the driving unit 480 . For example, the first push rod 510 can receive power from the driving unit 480 and transmit it to the second tray assembly 202 .

[0175] The ice maker 200 may further include a push rod link 440. For example, a plurality of push rod links 440 may be connected to the first push rod 510. One side of the push rod link 440 may be connected to the first push rod 510, and the other side may be connected to the second tray assembly 202. For example, the other side of the push rod link 440 may be connected to the second tray support 380.

[0176] The ice maker 200 may further include an elastic member 460. One end of the elastic member 460 may be connected to the transfer parts 420, 421, and the other end may be connected to the second tray assembly 202. When the elastic member 460 is stretched, the transfer parts 420, 421 may move to their initial positions due to the restoring force. In the ice making position, the elastic member 460 may increase the contact force between the first tray assembly 201 and the second tray assembly 202. The other end of the elastic member 460 may be coupled to the second tray support 380.

[0177] The ice maker 200 may further include a second push rod 530 for applying pressure to the ice or the second tray assembly 202 during ice removal. For example, the second push rod 530 may be disposed on the bracket 220. If the bracket 220 is omitted, the second push rod 530 may be disposed on the support member 150 or the ice making chamber wall 140.

[0178] The ice maker 200 may further include a full ice sensing lever 550. The full ice sensing lever 550 may include a lever body 552 extending in one direction. The full ice sensing lever 550 may further include a first extension 553 extending from one end of the lever body 552. The full ice sensing lever 550 may further include a second extension 554 extending from the other end of the lever body 552. The first extension 553 may be connected to the driving unit 480. The second extension 554 may be connected to the bracket 220.

[0179] The driving portion 480 may include an extension rib 484 for being inserted into or passing through the bracket 220. For example, the plurality of extension ribs 484 may be arranged spaced apart in the horizontal direction or the vertical direction. For example, the extension ribs 484 may protrude from the motor cover 481.

[0180] Figure 12 (A) is a perspective view of the first tray of the first embodiment viewed from above. Figure 12 (B) is a perspective view of the first tray according to the first embodiment as viewed from the bottom.

[0181] Reference Figure 12 The first tray 320 may define a first cell 321 as a part of the ice making unit 203. The first tray 320 may include a first cell wall 322 forming the first cell 321. As an example, the first cell 321 may be formed in a hemispherical shape or a shape similar to a hemisphere.

[0182] The first tray 320 may include a first contact surface 322 a that contacts the second tray 360 . The first contact surface 322 a may be a surface of the first cell wall 322 .

[0183] As an example, the first tray 320 may be formed into a plurality of first units 321. The plurality of first units 321 may be arranged along a plurality of rows to reduce the size of the generated ice and increase its quantity. The plurality of first units 321 may include a first unit portion 321a arranged in a first row and a second unit portion 321b arranged in a second row.

[0184] The first unit portion 321a may form a portion of a first ice-making unit in a first row, and the second unit portion 321b may form a portion of a second ice-making unit in a second row. The first and second rows may be arranged along the Y-axis in the figure. As an example, the Y-axis may be the front-to-back direction of the refrigerator or the front-to-back direction of a door.

[0185] The first column may include a plurality of first unit portions 321 a , and the second column may include a plurality of second unit portions 321 b .

[0186] The first column may be located closer to the front wall 141, the outer shell 101, the front of the door, or the cool air guide 270 than the second column. The second column may be located closer to the ice making chamber door 130 than the first column.

[0187] The number of the plurality of first unit portions 321a may be the same as or different from the number of the plurality of second unit portions 321b. For example, the number of the plurality of first unit portions 321a may be less than the number of the plurality of second unit portions 321b.

[0188] One first unit portion 321a may be arranged to correspond to the area between two adjacent second unit portions 321b. Alternatively, one first unit portion 321a may be arranged to face the area between two adjacent second unit portions 321b. In other words, the first unit portion 321a and the second unit portion 321b may be arranged in a zigzag shape.

[0189] The first tray 320 may further include through holes 323 a and 323 b for providing a passage for water or cool air. The number of the through holes 323 a and 323 b may be the same as the number of the first units 321 .

[0190] The first tray 320 may further include an auxiliary storage chamber 323d. Water or cold air may pass through the auxiliary storage chamber 323d. The auxiliary storage chamber 323d may be located above the through-holes 323a and 323b. The first tray 320 may further include an extension wall 323c. The extension wall 323c may extend upward from the periphery of the through-holes 323a and 323b to form the auxiliary storage chamber 323d. The extension wall 323c may extend from the first cell wall 322.

[0191] The auxiliary storage chamber 323d may be a space for generating ice. Alternatively, the auxiliary storage chamber 323d may be part of the ice-making unit 203. When ice is completely formed, the upper end of the ice may be located at or adjacent to the through holes 323a, 323b. Thus, the finished ice may be spherical or have a shape that is substantially similar to a sphere.

[0192] The auxiliary storage chamber 323d may store water excessively supplied to the ice making unit 203. The auxiliary storage chamber 323d may store ice expanded during a phase change of the supplied water.

[0193] The first tray 320 may further include an extension portion 324. The extension portion 324 may include a portion extending from the first cell wall 322. The extension portion 324 may contact a portion of the cool air guide 270 or support the cool air guide 270.

[0194] The extension portion 324 may include a portion spaced apart from the cool air guide 270. Cool air may flow in a space between the extension portion 324 and the cool air guide 270.

[0195] The extension portion 324 may include a first extension wall 324e and a second extension wall 324d. The second extension wall 324d may extend in a direction intersecting the first extension wall 324e.

[0196] The first tray 320 may further include one or more fastening portions for fastening to the bracket 220. For example, the first tray 320 may include a first fastening portion 324a. The first tray 320 may also include a second fastening portion 324b. If the bracket 220 is omitted, the first fastening portion 324a and the second fastening portion 324b may contact or be supported by the ice making compartment wall 140.

[0197] The extension portion 324 may further include a first fastening portion 324a and a second fastening portion 324b. For example, the first fastening portion 324a and the second fastening portion 324b may extend from one end of the first extension wall 324e in a direction away from the second tray 360. For example, the first fastening portion 324a and the second fastening portion 324b may be spaced apart along the X-axis (a direction intersecting the Y-axis, for example, a horizontal direction). The first fastening portion 324a and the second fastening portion 324b may include fastening holes 324c.

[0198] The first tray 320 may further include a support member 325 for supporting a component for moving the second tray assembly 202. For example, a plurality of support members 325 may be spaced apart along the X-axis. The support members 325 may extend from the extension portion 324 in one direction.

[0199] The support member 325 may include a hole 325a. As an example, the transmission parts 420 and 421 may be movably coupled to the support member 325. As an example, the transmission parts 420 and 421 may be coupled to the support member 325 so as to be rotatable relative to each other. The intermediate member 416 is coupled to the hole 325a of the support member 325. The support member 325 may be provided with a groove 325b into which a portion of the intermediate member 416 is inserted to prevent the intermediate member 416 from rotating relative to the support member 325. The groove 325b may extend outward from the hole 325a.

[0200] The intermediate member 416 may be formed of a material different from that of the first tray 320. The entire first tray 320 may be formed of the same material or at least a portion thereof may be formed of a metal material.

[0201] The first tray 320 may further include a bracket coupling portion 325c for coupling with the bracket 220. The bracket coupling portion 325c may protrude from the extension portion 324. The bracket coupling portion 325c may be located between the plurality of support members 325.

[0202] The first tray 320 may further include a cover coupling portion 327 for coupling with the first tray cover 300. For example, the cover coupling portions 327 may be spaced apart in the left-right direction or the front-back direction. For example, the cover coupling portions 327 may protrude from the extension portion 324.

[0203] The first tray 320 may further include a sensor mounting portion 326 for mounting the temperature sensor 710. The sensor mounting portion 326 may be formed in a recessed shape toward the second tray 360. The temperature sensor 710 may be accommodated in the sensor mounting portion 326.

[0204] The first tray 320 may further include a receiving portion 326 a for receiving the heat insulating member 720 mounted on the temperature sensor 710 .

[0205] The first tray 320 may further include a plurality of fastening bosses 328a, 328b, and 328c. The plurality of fastening bosses 328a, 328b, and 328c may include a first fastening boss 328a. The heater housing 340 may be mounted on the first fastening boss 328a. The first fastening boss 328a may be coupled to a fastening member extending through the first tray cover 300 and the heater housing 340.

[0206] The plurality of fastening bosses 328a, 328b, and 328c may further include a second fastening boss 328b. The first tray cover 300 may be seated on the second fastening boss 328b. The second fastening boss 328b may be coupled to a fastening member fastened to the first tray cover 300.

[0207] The plurality of fastening bosses 328 a , 328 b , and 328 c may further include a third fastening boss 328 c . The third fastening boss 328 c may be coupled to a fastening member penetrating the first tray cover 300 .

[0208] The first tray 320 may further include a heater seating portion 329 for seating the heater 330. For example, a portion of the first tray 320 may be recessed toward the second tray 360 to form the heater seating portion 329.

[0209] The first tray 320 may further include a guide groove 329 a guiding a portion of the heater 330 located outside the heater seating portion 329 .

[0210] The first tray 320 may further include a recessed portion 329c recessed from the extension portion 324 or the first cell wall 322 toward the second tray 360. The heater seating portion 329 may be recessed from the recessed portion 329c. Of course, the recessed portion 329c may be omitted.

[0211] Figure 13 (A) is a perspective view of the first tray cover of the first embodiment viewed from above, Figure 13 (B) is a perspective view of the first tray cover according to the first embodiment as viewed from the bottom.

[0212] Reference Figure 13 The first tray cover 300 may include a first portion 301. At least a portion of the first portion 301 may be separated from the first tray 320. As an example, at least a portion of the first portion 301 may be located above the first tray 320. Cool air may flow between the first portion 301 and the first tray 320.

[0213] The first tray cover 300 may further include a second portion 302 extending from one side of the first portion 301. The second portion 302 may extend from the first portion 301 in a direction intersecting the first portion 301. For example, the second portion 302 may extend from the first portion 301 in a direction away from the first tray 320.

[0214] The second portion 302 can cover the first push rod 510 in the ice making position. The second portion 302 can minimize the amount of the second portion exposed to the first push rod 510. The second portion 302 can be located between the first push rod 510 and the ice making chamber door 130. A hole 302a can be formed in the second portion 302. A fastening member can pass through the hole 302a.

[0215] The first tray cover 300 may further include a guide member 303. The guide member 303 may extend from the first portion 301 and provide a movement path for the first push rod 510. The guide member 303 may extend from the first portion 301 in a direction intersecting the first portion 301. The guide member 303 may include a guide groove 303a.

[0216] The first tray cover 300 may further include a water supply hole 301 a. The water supply hole 301 a may be aligned with the through hole 241 of the water supply portion 240.

[0217] The first tray cover 300 may further include a communication hole 301b aligned with the auxiliary storage chamber 323d (or the through holes 323a, 323b) of the first tray 320. As an example, a plurality of communication holes 301b may be formed in the first portion 301.

[0218] The first tray cover 300 may further include a first fastening hole 301d aligned with the first fastening boss 328a. A fastening member may penetrate the first fastening hole 301d and the heater housing 340 and be fastened to the first fastening boss 328a.

[0219] The first tray cover 300 may further include a fastening portion 301e aligned with the second fastening boss 328b. The fastening portion 301e may protrude from the first portion 301. A fastening member may penetrate the fastening portion 301e and be fastened to the second fastening boss 328b.

[0220] The first tray cover 300 may further include a second fastening hole 301f aligned with the third fastening boss 328c. A fastening member may be fastened to the third fastening boss 328c through the second fastening hole 301f.

[0221] The first portion 301 may further include a receiving groove 301g for receiving the extension wall 323c of the first tray 320. A rib 301c may be formed at a portion of the receiving groove 301g corresponding to the communication hole 301b.

[0222] The first tray cover 300 may further include a guide cover 304 that contacts a portion of the cool air guide 270. The guide cover 304 may cover a portion of the cool air guide 270. The guide cover 304 may be bent from the first portion 301.

[0223] The first tray cover 300 may further include a guide contact portion 304a that contacts the cool air guide 270. The guide contact portion 304a may extend upward from the first portion 301.

[0224] The first tray cover 300 may further include a tray receiving portion 305 for receiving the first tray 320. For example, the plurality of tray receiving portions 305 may be spaced apart from the first portion 301. The tray receiving portions 305 may extend downward from both ends of the first portion 301. Due to the tray receiving portions 305, the first portion 301 may be spaced apart from a portion of the first tray 320.

[0225] The first tray cover 300 may further include a tray coupling portion 306 for coupling with the first tray 320. The tray coupling portion 306 may be coupled to the cover coupling portion 327. For example, the cover coupling portion 327 may be inserted into the tray coupling portion 306.

[0226] The first tray cover 300 may further include a housing contact portion 307. The housing contact portion 307 may protrude from the first portion 301. The housing contact portion 307 may contact the heater housing 340. The housing contact portion 307 may apply pressure to the heater housing 340. As an example, a plurality of housing contact portions 307 may be spaced apart in the front-to-back direction and the left-to-right direction.

[0227] The first tray cover 300 may further include a pressurizing protrusion 308. The pressurizing protrusion 308 may apply pressure to the thermal insulation member 720. For example, a plurality of pressurizing protrusions 308 may protrude from the first portion 301.

[0228] The first tray cover 300 may further include a heater guide 309. The heater guide 309 may be disposed adjacent to one of the plurality of tray seating portions 305. The heater guide 309 may protrude from the first portion 301. A portion of the heater 330 may be disposed between the heater guide 309 and the tray seating portion 305.

[0229] Figure 14 (A) is a perspective view of the second tray assembly of the first embodiment viewed from above. Figure 14 (B) is a perspective view of the second tray assembly of the first embodiment viewed from the bottom.

[0230] Reference Figure 14 The second tray 360 may define a second cell 361 as another part of the ice making unit. The second tray 360 may include a second cell wall 362 forming the second cell 361. As an example, the second tray 360 may form a plurality of second cells 361. The plurality of second cells 361 may be arranged in a plurality of rows to reduce the size of generated ice and increase the amount thereof.

[0231] The plurality of second units 361 may include a first unit portion 361a arranged in a first row and a second unit portion 361b arranged in a second row. The first unit portion 361a may form another portion of the first ice-making unit in the first row, and the second unit portion 361b may form another portion of the second ice-making unit in the second row.

[0232] The first and second columns can be arranged along the Y-axis in the figure. As an example, the Y-axis can be the front-to-back direction of the refrigerator or the front-to-back direction of the door. The first column can include a plurality of first unit portions 361a. The second column can include a plurality of second unit portions 361b.

[0233] The first column may be located closer to the front wall 141, the outer shell 101, the front of the door, or the cold air guide 270 than the second column. The second column may be located closer to the ice making compartment door 130 than the first column. The second unit 361 of the second tray 360 may be configured to correspond to the first unit 321 of the first tray 320, and thus the detailed configuration of the second unit 361 is omitted.

[0234] The second tray 360 may be placed on the second tray support 380 . If the second tray 360 is placed on the second tray support 380 , a portion of the second tray 360 may pass through the second tray support 380 .

[0235] In a state where the second tray 360 is seated on the second tray support 380 , the second tray cover 350 may be seated on the second tray 360 . A portion of the second tray 360 may penetrate the second tray cover 350 .

[0236] The second tray support 380 , the second tray 360 , and the second tray cover 350 may be fastened together at once by a fastening member S4 . For example, the fastening member S4 may be fastened from the side of the second tray support 380 .

[0237] The second tray assembly 202 may further include a fixing member 390 (or a connecting member).

[0238] Although not restrictive, when the second tray assembly 202 is divided into three regions along the X-axis direction (left-right direction), the fixing member 390 may be provided in the central region.

[0239] During ice removal, the second push rod 530 applies pressure to the second tray 360 having a plurality of second units. The fixing member 390 can prevent the second tray 360 having a plurality of second units arranged in a row from being unable to return to its original shape after ice removal is completed.

[0240] The fixing member 390 may be installed on the second tray 360 . When the fixing member 390 is installed on the second tray 360 , a portion of the fixing member 390 may pass through the second tray 360 .

[0241] The fixing member 390 passing through the second tray 360 may be in contact with the second tray support 380 or pass through the second tray support 380 .

[0242] The second tray support 380 , the second tray 360 , and the fixing member 390 may be fastened together at once by a fastening member S5 . For example, the fastening member S5 may be fastened from the underside of the second tray support 380 .

[0243] When the second tray cover 350 is placed on the second tray 360, one end (for example, the upper end) of the second tray 360 may be located farther from the second tray support 380 than one end (for example, the upper end) of the second tray cover 350. For example, the upper end of the second tray 360 may be located higher than the upper end of the second tray cover 350.

[0244] Figure 15 (A) is a perspective view of the second tray cover according to the first embodiment as viewed from above. Figure 15 (B) is a perspective view of the second tray cover according to the first embodiment as viewed from the bottom.

[0245] Reference Figure 14 and Figure 15 The second tray cover 350 may include a cover body 351. The cover body 351 may be formed in a closed loop shape. That is, the cover body 351 may form an opening 352 for the second tray 360 to pass through.

[0246] The cover body 351 may include a curved surface 351 a. The curved surface 351 a may be formed to correspond to a curved wall 365 a of the second tray 360 described later. The curved surface 351 a may contact the curved wall 365 a of the second tray 360.

[0247] The cover body 351 may further include a plurality of fastening protrusions 353 and 353 a. The plurality of fastening protrusions 353 and 353 a may penetrate the second tray 360 and be coupled to the second tray support 380.

[0248] The plurality of fastening protrusions 353, 353a may include a first fastening protrusion 353. The first fastening protrusion 353 may protrude from the cover body 351. The plurality of fastening protrusions 353, 353a may further include a second fastening protrusion 353a. The cover body 351 may be provided with an extension 351b extending toward the opening 352. The second fastening protrusion 353a may extend from the extension 351b.

[0249] The cover body 351 may include a first groove 355. When a first protrusion 368a of the second tray 360, described later, is received in the first groove 355, the first protrusion 368a may be exposed to the outside. Conversely, the first protrusion may be formed on the cover body 351, and the first groove (or first hole) may be formed on the second tray 360.

[0250] The second tray cover 350 may further include a recessed portion 356. The recessed portion 356 may be provided on the cover body 351. The recessed portion 356 may be provided at a position in the cover body 351 corresponding to the first fastening protrusion 353. The recessed portion 356 may be recessed from the cover body 351 toward the first fastening protrusion 353.

[0251] Figure 16 (A) is a perspective view of the second tray of the first embodiment viewed from the upper side. Figure 16 (B) is a perspective view of the second tray of the first embodiment viewed from the other upper side. Figure 17 This is a perspective view of the second tray of the first embodiment as viewed from the bottom.

[0252] Reference Figures 15 to 17 The second tray 360 may define a second unit 361 as another part of the ice making unit. The second tray 360 may include a second unit wall 362 forming the second unit 361. As an example, the second unit 361 may be formed in a hemispherical shape or a shape similar to a hemisphere.

[0253] The first unit portion 361a may be disposed at a position corresponding to or facing a region between two adjacent second unit portions 361b. That is, the first unit portion 361a and the second unit portion 361b may be arranged in a zigzag shape.

[0254] The second tray 360 may further include a push rod contact portion 362a that contacts the second push rod 530 during ice removal. The push rod contact portion 362a may be formed on the second cell wall 362. The thickness of the second cell wall 362 along the circumference may be different from the thickness of the push rod contact portion 362a. The thickness of the push rod contact portion 362a may be greater than the thickness of the second cell wall 362. The push rod contact portion 362a may include a flat surface.

[0255] The second tray 360 may further include a peripheral wall 365. The peripheral wall 365 may extend from the second cell wall 362 toward the first tray 320. The peripheral wall 365 may surround the first cell wall 322.

[0256] The peripheral wall 365 may include a curved wall 365a. The curved wall 365a may be disposed adjacent to the first unit portion 361a. The peripheral wall 365 may also include a straight wall 365b. As an example, the straight wall 365b may be parallel to the Z axis. The straight wall 365b may be disposed adjacent to the second unit portion 361b.

[0257] The peripheral wall 365 may further include a connecting wall 365c connecting the straight wall 365b and the curved wall 365a. The connecting wall 365c may be arc-shaped along the Z-axis. The curvature of the curved wall 365b may be different from that of the connecting wall 365c. The curvature of the curved wall 365b may be greater than that of the connecting wall 365c. The cover body 351 may surround the outer circumference of the peripheral wall 365.

[0258] The second tray 360 may further include an extension portion 367. The extension portion 367 may extend from the second cell wall 362 or the peripheral wall 365. Alternatively, the extension portion 367 may extend from a boundary between the second cell wall 362 and the peripheral wall 365. The extension portion 367 may extend in a direction intersecting the peripheral wall 365.

[0259] The second tray cover 350 may be mounted on one side of the extension portion 367 , and the second tray support 380 may be mounted on the other side of the extension portion 367 .

[0260] The first protrusion 368 a may be formed on one side of the extension portion 367 , and the second protrusion 368 may be formed on the other side of the extension portion 367 .

[0261] The first protrusion 368a may be bent horizontally more than once. For example, the first protrusion 368a may include a first portion and a second portion inclined relative to the first portion. For example, the first protrusion 368a may be formed in a V-shaped shape.

[0262] The second protrusion 368 may be bent horizontally more than once. As an example, the second protrusion 368 may include a first portion and a second portion inclined relative to the first portion. As an example, the second protrusion 368 may be formed in a V-shaped shape.

[0263] A third protrusion 369 for coupling with the second tray support 380 may be provided on the other side of the extension portion 367. As an example, the third protrusion 369 may overlap with the curved wall 365a in the Z-axis direction.

[0264] The second protrusion 368 may be closer to the straight wall 365b than the curved wall 365a. The first protrusion 368a may be disposed adjacent to the second unit portion 361b. The second protrusion 368 may be disposed adjacent to the second unit portion 361b. The third protrusion 369 may be disposed adjacent to the first unit portion 361a.

[0265] The extension portion 367 may be formed with a plurality of holes 367a through which the fastening protrusions 353, 353a pass. The portion of the extension portion 367 where the fastening protrusions 353, 353a are formed (referred to as a "fixed end") is fixed to the second tray cover 350 and the second tray support 380. When the second push rod 530 applies pressure to the second tray 360, ice can only be easily separated from the second cells 361 if the walls forming each of the second cells 361 are independently deformed.

[0266] However, because each of the plurality of second units 361 is located at a different distance from the fixed end, the portion farther from the fixed end may not deform independently, but may simply move along with the ice while maintaining its original shape or exhibiting minimal deformation. In this case, the ice may not separate from the second units 361. For example, if the second tray 360 is divided into three areas in the left-right direction, ice removal performance may be reduced in the central area.

[0267] In the present invention, the fixing member 390 fixes the central area of ​​the second tray 320 to improve ice removal performance. The fixing member 390 functions as the fixing end, so a portion of the second unit is disposed adjacent to the fixing member 390. Therefore, the portion adjacent to the fixing member can independently deform during ice removal from the second unit's wall, thereby improving ice removal performance.

[0268] The second tray 360 may further include a fixing groove 364 for receiving the fixing member 390. A portion of the fixing groove 364 may be located between two adjacent first unit portions 361a, and another portion of the fixing groove 364 may be located between two adjacent second unit portions 361b.

[0269] The second tray 360 may further include a protruding wall 364a extending from a portion corresponding to the fixing groove 364. The fixing member 390 may penetrate the fixing groove 364 and be located within the protruding wall 364a.

[0270] The fixing member 390 may couple the second cell wall 362 and the second tray support 380 within a space formed by the peripheral wall 365 .

[0271] Figure 18 (A) is a perspective view of the second tray support member of the first embodiment viewed from the upper side. Figure 18 (B) is a perspective view of the second tray support member of the first embodiment viewed from the bottom.

[0272] Reference Figures 15 to 18The second tray support 380 may include a support body 381 that supports the second tray 360. The support body 381 may include a receiving portion 381a that receives a portion of the second tray 360. The receiving portion 381a may receive each of the plurality of second cells 361 of the second tray 360. The second cell wall 362 may be received in the receiving portion 381a.

[0273] The second tray support 380 may further include a support opening 382 for the second tray 360 to pass through. The support opening 382 may also be arranged along the first column and the second column.

[0274] The support member body 381 may include a first support surface 383 a and a second support surface 383 b that is stepped from the first support surface 383 a. The first support surface 383 a may support the second cell wall 362 or the peripheral wall 365. The second support surface 383 b may support the extension portion 367.

[0275] The second tray support 380 may include a plurality of through holes 384 , 384 a through which the fastening protrusions 353 , 353 a pass.

[0276] The plurality of through holes 384, 384a may include a first through hole 384 through which the first fastening protrusion 353 passes. The plurality of through holes 384, 384a may include a first through hole 384a through which the second fastening protrusion 353a passes.

[0277] The second tray support 380 may include a first protrusion groove 385 for receiving the second protrusion 368. When the second protrusion 368 is received in the first protrusion groove 385, the second protrusion 368 may be exposed to the outside.

[0278] The second tray support 380 may further include a second protrusion groove 385a for receiving the third protrusion 369. When the third protrusion 369 is received in the second protrusion groove 385a, the third protrusion 369 may be exposed to the outside.

[0279] The second tray support 380 may further include coupling portions 386 and 386b extending from the support body 381. For example, the plurality of coupling portions 386 and 386b may be spaced apart in the horizontal direction (X-axis direction).

[0280] The plurality of coupling portions 386, 386a may include a first coupling portion 386a for coupling with the first transfer portion 420. The plurality of coupling portions 386, 386a may also include a second coupling portion 386 for coupling with the second transfer portion 421. Each of the plurality of coupling portions 386, 386a may include a coupling hole 386b. The rotation center of the second tray assembly 202 may be located at the coupling hole 386b.

[0281] The second tray support 380 may further include a connecting rod coupling portion 387 for coupling with the push rod coupling 440. For example, the connecting rod coupling portion 387 may be cylindrical. The connecting rod coupling portion 387 may protrude horizontally from the support body 381. The connecting rod coupling portion 387 may be located closer to the lower end of the support body 381 than the rotation center.

[0282] The second tray support 380 may further include an elastic member coupling portion 388 for coupling with the elastic member 460. The distance between the elastic member coupling portion 388 and the link coupling portion 387 in the Z-axis direction may be smaller than the distance between the link coupling portion 387 and the rotation center.

[0283] The second tray support 380 may further include a hole 389 through which the fixing member 290 passes. The protruding wall 364a may be received in the hole 389.

[0284] Hereinafter, the operation of the ice maker 200 will be described.

[0285] Figure 19 is a cross-sectional view of the ice maker showing the water supply position of the second tray assembly of the first embodiment, Figure 20 FIG. 1 is a cross-sectional view of the ice maker showing the second tray assembly of the first embodiment at an ice making position. Figure 21 2 is a cross-sectional view of the ice maker showing a state in which the second tray assembly moves to an ice full sensing position during an ice removal process.

[0286] Figure 22 (A) is a cross-sectional view of the ice maker showing a state in which the first rod of the second push rod is in contact with the second tray, Figure 22 (B) is a cross-sectional view of the ice maker showing a state in which the second rod of the second push rod is in contact with the second tray.

[0287] Figure 23 (A) is a diagram showing a state in which the first rod of the second push rod presses the second tray at the ice moving position. Figure 23 (B) is a diagram showing a state in which the second rod of the second push rod presses the second tray at the ice moving position. Figure 24 It is a control block diagram of the refrigerator of the first embodiment.

[0288] Reference Figures 19 to 24 The refrigerator may further include a control unit 100. The control unit 100 may be provided in the object for control or separated therefrom. The control unit 100 may be located inside the object for control or outside thereof.

[0289] The driving unit 480 may be controlled by the control unit 100. The control unit 100 may control the driving unit 480 so that the second tray assembly 202 moves to the water supply position, the ice making position, the full ice sensing position, and the ice moving position.

[0290] Figure 19 The position of the second tray assembly 202 is the water supply position. Figure 20 The position of the second tray assembly 202 is the ice making position. Figure 21 The position of the second tray assembly 202 is the full ice sensing position. Figure 23 The position of the second tray assembly 202 is the ice moving position.

[0291] The second tray assembly 202 can be moved from the water supply position to the ice making position in a first direction. The first direction is clockwise in the figure. The second tray assembly 202 can be moved from the ice making position to the water supply position in a second direction opposite to the first direction. The second direction is counterclockwise in the figure.

[0292] The second tray assembly 202 can be moved along the second direction from the water supply position to the full ice sensing position. The second tray assembly 202 can be moved along the second direction from the full ice sensing position to the ice removal position. The second tray assembly 202 can be moved along the first direction from the ice removal position to the water supply position.

[0293] Reference Figure 19 At the water supply position of the second tray assembly 202 , a water supply process may be performed. Water may be supplied to the ice making unit 203 through the water supply portion 240 .

[0294] In the water supply position of the second tray assembly 202, at least a portion of the second tray 360 may be separated from the first tray 320. As an example, the first unit 321 and the second unit 361 may be separated.

[0295] The first column may be located closer to the rotation center C1 of the second tray assembly 202 than the second column. A distance between the second unit portion 321 b of the first tray 320 and the second unit portion 361 b of the second tray 360 in the second column may be greater than a distance between the first unit portion 321 a of the first tray 320 and the first unit portion 361 a of the second tray 360 in the first column.

[0296] The first rod 513 of the first push rod 510 can separate ice from the first row of ice-making units 203. The first rod 513 can push the ice in the first row of ice-making units 203. The second rod 514 can separate ice from the second row of ice-making units 203. The second body 514 can push the ice in the second row of ice-making units 203.

[0297] Each of the first and second rods 513 and 514 may include a first edge 513b, 514b for applying pressure to ice and a second edge 513c, 514c located opposite to the first edge 513b, 514b. The first edge 513b, 514b may be located closer to the ice-making unit 203 than the second edge 513c, 514c.

[0298] In the water supply position and / or the ice making position, the second portion 302 of the first tray cover 300 may overlap with the push rod body 511 in a horizontal direction.

[0299] Once water supply is complete, the second tray assembly 202 can be moved to the ice-making position. When the second tray assembly 202 is moved to the ice-making position, the first tray 320 and the second tray 360 can come into contact with each other. In this state, the first unit 321 and the second unit 322 form a complete ice-making unit 203. A portion of the water contained in the second tray 360 can be dispensed into the first unit 321 of the first tray 320.

[0300] In the ice-making position, a portion of the full ice sensing lever 550 may be located below the second push rod 530. For example, the lever body 552 may be located below the second push rod 530. At least a portion of the first extension portion 553 connected to the driving portion 480 may extend toward the second push rod 530.

[0301] In the ice-making position, the ice-making process can be performed. Cold air can flow through the cold air guide 270 . The cold air flowing through the cold air guide 270 can flow between the first tray cover 300 and the first tray 320 . In this embodiment, cold air can also be supplied to the ice-making chamber 122 during the water supply process. Alternatively, cold air can be supplied to the ice-making chamber 122 only during the ice-making process. Cold air can also be supplied to the ice-making chamber 122 during the ice removal process.

[0302] During the ice making process, whether ice making is completed may be determined based on at least one of the temperature sensed by the temperature sensor 710 and the time for supplying cold air.

[0303] If ice making is complete, an ice removal process may be performed. The ice removal process may include a heating process in which the heater 330 operates. If the heater 330 is turned on, heat from the heater 330 may be transferred to the ice making unit 203. The heat from the heater 330 may separate the ice from the first tray 320. Whether to turn off the heater 330 may be determined based on at least one of the operating time of the heater 330 and the temperature sensed by the temperature sensor 710.

[0304] The ice removal process may further include a movement process of the second tray assembly 202. The movement process may be performed after the heater 330 is turned off or while the heater 330 is running, in which case the heater 330 may be turned off.

[0305] During the ice removal process, the second tray assembly 202 may move along the second direction (direction of arrow A) from the ice making position toward the ice removing position.

[0306] During the ice removal process, the second tray assembly 202 can receive power from the driving unit 480 while moving in the second direction, thereby allowing the full ice sensing lever 550 to move. The full ice sensing lever 550 can remain stationary until the second tray assembly 202 rotates from the ice making position in the second direction to a predetermined angle. If the second tray assembly 202 rotates beyond the predetermined angle, the full ice sensing lever 550 can rotate. At this time, the full ice sensing lever 550 can rotate in a first direction (direction indicated by arrow B), which is opposite to the rotational direction of the second tray assembly 202.

[0307] When the second tray assembly 202 moves to the full ice sensing position, the full ice sensing lever 550 may also move to the full ice sensing position. At this time, the lever body 552 may be separated from the second tray assembly 202.

[0308] If full ice is not sensed when the second tray assembly 202 moves to the ice full sensing position, the second tray assembly 202 may be further moved toward the ice moving position along the second direction.

[0309] When the second tray assembly 202 further moves while the full ice sensing lever 550 is moved to the full ice sensing position, the full ice sensing lever 550 may also move in the second direction and return to the initial position, thereby preventing interference between the full ice sensing lever 550 and the second tray assembly 202.

[0310] On the other hand, when the second tray assembly 202 moves from the ice making position to the ice moving position, the rods 513 and 514 of the first push rod 510 can pass through the through holes 323a and 323b of the first tray 320 and be inserted into the first unit 321. When the rods 513 and 514 of the first push rod 510 are inserted into the first unit 321, the rods 513 and 514 of the first push rod 510 can apply pressure to the ice.

[0311] The second push rod 530 may include a first rod 532. The second push rod 530 may further include a second rod 533. The first rod 532 may separate ice from the ice-making units 203 in the first row. The second rod 533 may separate ice from the ice-making units 203 in the second row.

[0312] During the process of the second tray assembly 202 moving to the ice moving position, Figure 28 As shown in FIG. 5A , the first rod 532 of the second push rod 530 may first contact the second tray 360 . The first rod 532 may be located closer to a vertical line V1 passing through the rotation center C1 than the second rod 533 .

[0313] The distance between the first column of the second tray 360 and the rotation center C1 is different from the distance between the second column of the second tray 360 and the rotation center C1. Therefore, with reference to a vertical line V1 passing through the rotation center C1, the positions of the first rod 532 and the second rod 533 must be different. The horizontal distance between the first rod 532 and the vertical line V1 can be shorter than the horizontal distance between the second rod 533 and the vertical line V1.

[0314] The first rod 532 may include a first pressing surface 532b. The first pressing surface 532b may apply pressure to a portion corresponding to the first column of the second tray 360. The second rod 533 may include a second pressing surface 533b. The second pressing surface 533b may apply pressure to a portion corresponding to the second column of the second tray 360.

[0315] The first pressurizing surface 532b may be inclined relative to the vertical line V1. The second pressurizing surface 533b may be inclined relative to the vertical line V1. The inclination angle of the first pressurizing surface 532b may be different from the inclination angle of the second pressurizing surface 533b. As an example, the inclination angle of the first pressurizing surface 532b relative to the vertical line may be smaller than the inclination angle of the second pressurizing surface 533b relative to the vertical line.

[0316] In the state where the first rod 532 is in contact with the second tray 360, the second rod 533 can be spaced apart from the second tray 360. In this state, if the second tray assembly 202 is further moved along the second direction, Figure 22 As shown in FIG. 5B , the second rod 533 may contact the second tray 360 . The first rod 532 may press the first column of the second tray 360 , thereby deforming a portion of the second cell wall 362 forming the first column.

[0317] Reference Figure 23 If the second tray assembly 202 moves to the ice removal position, a portion of the second cell walls 362 forming the first row can be deformed by the first rod 532, thereby separating the ice in the first row from the second tray 360. Furthermore, another portion of the second cell walls 362 forming the second row can be deformed by the second rod 533, thereby separating the ice in the second row from the second tray 360.

[0318] In the ice-moving position, the first edges 513b and 514b of the first rod 513 and the second rod 514 of the first push rod 510 can extend through the first unit 321 and be located outside the first unit 321. For example, the first edges 513b and 514b can be located lower than the first tray 320, as shown in the figure. According to this embodiment, ice can be fully pressed by the first edges 513b and 514b, thereby improving ice-moving performance.

[0319] The ice separated from the second tray assembly 202 may fall downward and thus be stored in the ice bucket 600 .

[0320] After moving to the ice removing position, the second tray assembly 202 may move toward the water supply position along the first direction.

[0321] Figure 25 (A) is a perspective view of the second tray assembly according to the second embodiment as viewed from above. Figure 25 (B) is a bottom view of the second tray assembly of the second embodiment. Figure 26 It is an exploded perspective view of the second tray assembly of the second embodiment.

[0322] In this embodiment, all other components are identical to those of the first embodiment, with the exception of the second tray assembly. Therefore, the following describes the characteristic features of this embodiment. In describing the second tray assembly, the same reference numerals are used for components identical to those of the first embodiment.

[0323] Reference Figure 25 and Figure 26 In this embodiment, the second tray assembly 202A may include a second tray 1360 defining a second unit 361 as another portion of the ice-making unit. The second tray assembly 202A may further include a second tray housing located on one side of the second tray 1360. The second tray housing may include a portion that contacts or supports the second tray 1360.

[0324] The second tray housing may include a second tray cover 1350. A portion of the second tray cover 1350 may be located closer to the first tray 320 than a portion of the second tray 1360. The second tray housing may also include a second tray support 1380. A portion of the second tray support 1380 may be located farther from the first tray 320 than a portion of the second tray 1360.

[0325] The second tray housing may further include a base portion 1390. The base portion 1390 may contact the second tray 1360. The base portion 1390 may contact the second tray support 1380. A portion of the base portion 1390 may be located further away from the first tray 320 than a portion of the second tray cover 1350.

[0326] A portion of the second tray support 1380 may be located between a portion of the second tray 1360 and the base portion 1390 . A portion of the second tray 1360 may be located between the second tray cover 1350 and the base portion 1390 .

[0327] Figure 27 (A) is a perspective view of the second tray cover according to the second embodiment as viewed from above. Figure 27 (B) is a perspective view of the second tray cover according to the second embodiment as viewed from the bottom.

[0328] Reference Figure 27 In this embodiment, the second tray cover 1350 may include a cover body 1351. The cover body 1351 may be formed in a closed loop shape. That is, the cover body 1351 may form an opening 1352 for the second tray 1360 to pass through.

[0329] The cover body 1351 may include a recessed portion 1351a for receiving a portion (a curved wall, described below) of the second tray 1360. For example, a plurality of recessed portions 1351a may be spaced apart. The recessed portion 1351a may include an arcuate surface that contacts a curved wall 1365a of the second tray 1360, described below.

[0330] The cover body 1351 may further include a fastening protrusion 1353. The fastening protrusion 1353 may penetrate the second tray 1360 and be coupled to the second tray support 1380. The fastening protrusion 1353 may protrude from the cover body 1351.

[0331] The cover body 1351 may include a first groove 1355. A first protrusion 1368a of the second tray 1360 described below may be received in the first groove 1355. As an example, a plurality of first grooves 1355 may be spaced apart.

[0332] The cover body 1351 may further include a second groove 1356. The second groove 1356 may be located on the opposite side of the cover body 1351 from the recessed portion 1351a. A plurality of second grooves 1356 may be spaced apart from each other in the cover body 1351.

[0333] The second tray cover 1350 may further include fastening portions 1357 and 1358. The fastening portions 1357 and 1358 may be fastened to the second tray support 1380.

[0334] As an example, the plurality of fastening portions 1357 and 1358 may extend from the cover body 1351. The plurality of fastening portions 1357 and 1358 may be disposed facing each other. The plurality of fastening portions 1357 and 1358 may include protruding holes 1357a and 1357b.

[0335] Figure 28 (A) is a perspective view of the second tray of the second embodiment viewed from above. Figure 28 (B) is a perspective view of the second tray according to the second embodiment as viewed from the bottom. Figure 29 (A) is a top view of the second tray of the second embodiment, Figure 29 (B) is a side view of the second tray of the second embodiment.

[0336] Reference Figure 28 and Figure 29 The second tray 1360 may define a second cell 361 as another part of the ice-making unit. The second tray 1360 may include a second cell wall 362 forming the second cell 361.

[0337] As an example, the second tray 360 may form a plurality of second units 361. The plurality of second units 361 may be arranged along a plurality of rows. The plurality of second units 361 may include a first unit portion 361a arranged in a first row and a second unit portion 361b arranged in a second row. The first unit portion 361a may form another portion of the first ice-making unit in the first row, and the second unit portion 361b may form another portion of the second ice-making unit in the second row.

[0338] The first unit portion 361a may be disposed at a position corresponding to or facing a region between two adjacent second unit portions 361b. That is, the first unit portion 361a and the second unit portion 361b may be arranged in a zigzag shape.

[0339] The second tray 1360 may further include a peripheral wall 365 . The peripheral wall 365 may extend from the second cell wall 362 toward the first tray 320 .

[0340] The peripheral wall 365 may include a curved wall 365a. The curved wall 365a may be disposed adjacent to the first unit portion 361a. The peripheral wall 365 may also include a straight wall 365b. The straight wall 365b may extend in a straight line along the Z-axis. The straight wall 365b may extend in a curved line in a direction intersecting the Z-axis.

[0341] The straight wall 365b may be arranged adjacent to the second unit portion 361b. The peripheral wall 365 may further include a connecting wall 365c connecting the straight wall 365b and the curved wall 365a. The connecting wall 365c may be arc-shaped along the Z-axis. The curvature of the curved wall 365a may be different from that of the connecting wall 365c. The curvature of the curved wall 365a may be greater than that of the connecting wall 365c. The cover body 1351 may surround the outer circumference of the peripheral wall 365. The curved wall 365a may be supported by the recessed portion 1351a of the cover body 1351. The straight wall 365b may include a portion located farther from the extension portion 367 described later than the curved wall 365a. As an example, the upper end portion 365b1 of the straight wall 365b may include a portion higher than the upper end portion 365a1 of the curved wall 365a.

[0342] The linear wall 36b may include a portion having a variable distance from the extension portion 367. As an example, the upper end portion 365b1 of the linear wall 365b may include a portion having a variable height.

[0343] The second tray 1360 may further include an extension portion 367. The extension portion 367 may extend from the second cell wall 362 or the peripheral wall 365. Alternatively, the extension portion 367 may extend from a boundary between the second cell wall 362 and the peripheral wall 365. The extension portion 367 may extend in a direction intersecting the peripheral wall 365.

[0344] The second tray cover 1350 may be mounted on one side of the extension portion 367 , and the second tray support 1380 may be mounted on the other side of the extension portion 367 .

[0345] A first protrusion 1368a may be formed on one side of the extension portion 367. The first protrusion 1368a may be inserted into the first groove 1355 of the first tray cover 1350. As an example, a plurality of first protrusions 1368a may be spaced apart along the X-axis direction. A second protrusion 1368b may be formed on the other side of the extension portion 367. The second protrusion 1368b may be inserted into the first protrusion groove 1385a of the second tray support 1380, which will be described later. As an example, a plurality of second protrusions 1368b may be spaced apart along the X-axis direction. The first protrusion 1368a and the second protrusion 1368b may overlap in the Z-axis direction.

[0346] A third protrusion 1368c may be provided on the other side of the extension portion 367. The third protrusion 1368c may be coupled to the second tray support 1380. For example, the third protrusion 1368c may overlap with the curved wall 365a in the Z-axis direction. The third protrusion 1368c may be located on the opposite side of the second protrusion 1368b. For example, a plurality of third protrusions 1368c may be spaced apart along the X-axis direction.

[0347] The first protrusion 1368a may be closer to the straight wall 365b than the curved wall 365a. The first protrusion 1368a may be disposed adjacent to the second unit portion 361b. The second protrusion 1368b may be disposed adjacent to the second unit portion 361b. The third protrusion 1368c may be disposed adjacent to the first unit portion 361a.

[0348] The second tray 1360 may further include grooves 1369a and 1369b for the fastening portions 1357 and 1358 to pass through. For example, a plurality of grooves 1369a and 1369b may be provided on the extension portion 367. The plurality of grooves 1369a and 1369b may be arranged to face each other.

[0349] The plurality of grooves 1369a, 1369b may include a first groove 1369a. The first groove 1369a may be located between the plurality of first protrusions 1368a or between the plurality of second protrusions 1368b. The plurality of grooves 1369a, 1369b may also include a second groove 1369b. The second groove 1369b may be located between the plurality of third protrusions 1368c.

[0350] The second tray 1360 may further include an extension rod 1366. For example, the extension rod 1366 may extend from the second cell wall 362 or the extension portion 367. The extension rod 1366 may contact the base portion 1390. The extension rod 1366 may include a groove 1366a for engaging with the base portion 1390. The extension rod 1366 may include a first section 1366b and a second section 1366c extending from the first section 1366b. The first section 1366b may extend from the second cell wall 362 or the extension portion 367. The diameter or size of the second section 1366c may be larger than the diameter or size of the first section 1366b.

[0351] The plurality of extension rods 1366 may be spaced apart from the second tray 1360. Although not restrictive, the plurality of extension rods 1366 may be arranged in a direction intersecting the arrangement direction of the first and second columns. The extension rod 1366 may include a portion located between two adjacent second unit portions 361b in the second column.

[0352] Figure 30 (A) is a perspective view of the second tray support member according to the second embodiment as viewed from above. Figure 30 (B) is a bottom view of the second tray support member of the second embodiment. Figure 31 (A) is a perspective view showing the lower structure of the second tray support member of the second embodiment, Figure 31 (B) is a top view of the second tray support member of the second embodiment.

[0353] Reference Figure 30 and Figure 31The second tray support 1380 may include a support body 381 that supports the second tray 1360. The support body 381 may include a receiving portion 381a that receives a portion of the second tray 1360. The receiving portion 381a may receive each of the plurality of second cells 361 of the second tray 1360. The second cell walls 362 may be received in the receiving portion 381a.

[0354] The second tray support 1380 may further include a support opening 1382 for the second tray 360 to pass through. The support openings 1382 may also be arranged along a first column and a second column. For example, the support openings 1382 may include a first opening 1382a in the first column and a second opening 1382b in the second column.

[0355] The second tray support 1380 may include a fastening groove 384 that receives the fastening protrusion 1353 .

[0356] The second tray support 1380 may include a first protrusion groove 1385a for receiving the second protrusion 1368b. When the second protrusion 1368b is received in the first protrusion groove 1385a, the second protrusion 1368b may be exposed to the outside.

[0357] The second tray support 1380 may further include a second protrusion groove 1385b for receiving the third protrusion 1368c. When the third protrusion 1368c is received in the second protrusion groove 1385b, the third protrusion 1368c may be exposed to the outside.

[0358] The second tray support 380 may further include a coupling portion 386 extending from the support body 381. As an example, the plurality of coupling portions 386 may be spaced apart along the horizontal direction (X-axis direction).

[0359] The second tray support 1380 may further include a link coupling portion 387 for coupling with the push rod link 440 . The second tray support 380 may further include an elastic member coupling portion 388 for coupling with the elastic member 460 .

[0360] The second tray support 1380 may further include fastening grooves 1387a and 1387c for fastening the fastening portions 1357 and 1358. Fastening protrusions 1387b and 1387d may be formed in the fastening grooves 1387a and 1387c to be inserted into the protruding holes 1357a and 1357b of the fastening portions 1357 and 1358.

[0361] The fastening portions 1357 and 1358 may be fastened to the fastening protrusions 1387b and 1387d in the fastening grooves 1387a and 1387c after passing through the grooves 1369a and 1369b of the second tray 1360 .

[0362] The second tray support 1380 may further include an extended opening 1383a. The extended opening 1383a may extend from a portion of the plurality of support openings 1382. For example, the extended opening 1383a may extend from the first opening 1382a in the first row. For example, the extended opening 1383a may extend from the first opening 1382a toward the second opening 1382b in the second row. The extended opening 1383a may include a portion located between two adjacent second openings 1382b.

[0363] The second tray support 1380 may include a seating groove 1383 d formed at a position corresponding to an end of the extension opening 1383 a .

[0364] The first section 1366b of the extension rod 1366 can be located in the extension opening 1383a. The second section 1366c can be placed in the placement groove 1383d. The diameter of the second section 1366c can be greater than the width of the extension opening 1383a.

[0365] The second tray support 1380 may further include a first hole 1383b for fastening a portion of the base portion 1390. The second tray support 1380 may further include a second hole 1383c for fastening another portion of the base portion 1390. As an example, the first hole 1383b and the second hole 1383c may be spaced apart along the Y-axis. The second hole 1383c may be closer to the first opening 1382a than the second opening 1382b. The first hole 1383b may be closer to the second opening 1382b than the first opening 1382a.

[0366] Figure 32 (A) is a perspective view of the base portion of the second embodiment, Figure 32 (B) is a top view of the base portion of the second embodiment. Figure 33 (A) is a front view of the base portion of the second embodiment, Figure 33 (B) is a side view of the base portion of the second embodiment.

[0367] Reference Figure 32 and Figure 33, the base portion 1390 may include a first extension portion 1391. The first extension portion 1391 may be in contact with the rod 1366 of the second tray 1360. The first extension portion 1391 may be inserted into the groove 1366a of the rod 1366. The first extension portion 1391 may include a portion whose diameter decreases as it approaches one side. As another example, a groove may be formed in the first extension portion 1391, and a portion of the rod 1366 may be inserted into the groove. As an example, a plurality of first extension portions 1391 may be arranged to be spaced apart along the X-axis direction.

[0368] The base portion 1390 may further include a second extension portion 1392. The second extension portion 1392 may engage with the first hole 1383b. To facilitate engagement of the second extension portion 1392 with the first hole 1383b, the second extension portion 1392 may include a plurality of hooks. The second extension portion 1392 may be spaced apart from the first extension portion 1391 along the Y-axis. The second extension portion 1392 may have a length along the Z-axis greater than that of the first extension portion 1391. As an example, a plurality of second extension portions 1392 may be spaced apart along the X-axis.

[0369] The base portion 1390 may further include a third extension portion 1393. The third extension portion 1393 may engage with the second hole 1383c. To allow the third extension portion 1393 to engage with the second hole 1383c, the third extension portion 1393 may include a plurality of hooks. The third extension portion 1393 may be spaced apart from the first extension portion 1391 and the second extension portion 1392 along the Y-axis. The length of the third extension portion 1393 along the Z-axis may be greater than that of the first extension portion 1391. As an example, a plurality of third extension portions 1393 may be spaced apart along the X-axis.

[0370] The number of the plurality of first extensions 1391 may be the same as or different from the number of the plurality of second extensions 1392. The number of the plurality of second extensions 1392 may be the same as or different from the number of the plurality of third extensions 1393.

[0371] The interval between two adjacent first extensions 1391 may be the same as or different from the interval between two adjacent second extensions 1392. The interval between two adjacent second extensions 1392 may be the same as or different from the interval between two adjacent third extensions 1393. The interval between two adjacent first extensions 1392 may be the same as or different from the interval between two adjacent third extensions 1393.

[0372] The base portion 1390 may further include a plate 1394. The plate 1394 may include a first plate 1394a connecting the first extension portion 1391 and the second extension portion 1392. For example, a portion of the plurality of first extension portions 1391 may be connected to the second extension portion 1392 using the first plate 1394a. The first plate 1394a may include a straight portion or a curved portion.

[0373] The base portion 1390 may further include a second plate 1394b connecting two adjacent first extension portions 1391. The second plate 1394b may include a curved portion. The length of the second plate 1394b may be longer than the length of the first plate 1394a. The third extension portion 1393 may be provided on the second plate 1394b. As another example, the second plate 1394b may connect the first extension portion 1391 and the third extension portion 1393. As another example, the first extension portion 1391, the second extension portion 1392, and the third extension portion 1393 may extend from a single plate 1394.

[0374] At least one of the first plate 1394a and the second plate 1394b may include a reinforcing rib 1398. The reinforcing rib 1398 may include a straight portion or a curved portion.

[0375] Figure 34 (A) is a diagram showing a second tray and a second tray support member combined in accordance with the second embodiment. Figure 34 (B) is shown in Figure 34 (A) is a diagram showing the configuration of the combined base portion. Figure 35 (A) is along Figure 34 (B) is a cross-sectional view taken along line 35A-35A, Figure 36 (B) is along Figure 34 (B) is a cross-sectional view taken along line 35B-35B. Figure 36 (A) is along Figure 34 (B) is a cross-sectional view taken along line 36A-36A, Figure 36 (B) is along Figure 34 (B) is a cross-sectional view taken along line 36B-36B.

[0376] Reference Figures 34 to 36 After a portion of the second unit wall 362 of the second tray 1360 and the rod 1366 pass through the first opening 1382a, the rod 1366 may move toward the extension opening 1383a.

[0377] The second unit wall 362 of the second tray 1360 can be seated in the receiving portion 381a of the support body 381. If the rod 1366 moves toward the end of the extension opening 1383a, the second section 1366c of the rod 1366 can be seated in the seating groove 1383d of the second tray support 1380.

[0378] After the second tray 1360 is seated on the second tray support 1380 , the base portion 1390 may be combined with the second tray support 1380 and the second tray 1360 .

[0379] On the other hand, the description may be made assuming that the second tray assembly 202A has the following structure when the second tray assembly 202A is assembled.

[0380] The second tray 1360 may include a first surface 1363 having a surface facing the ice-making unit 203 (or the second unit) or forming the ice-making unit 203. As an example, the inner surface of the second tray 1360 may provide the first surface 1363. The second tray 1360 may also include a second surface 1364 having a surface forming a thickness together with the first surface 1363. As an example, the outer surface of the second tray 1360 may provide the second surface 1364.

[0381] The second side 1364 of the second tray 1360 may include a first portion 1364a having a portion corresponding to the shape of the ice-making unit 203. The second side 1364 may also include a second portion 1364b extending from the first portion 1364a. The second portion 1364b may be integrally formed with the first portion 1364a. As an example, the second cell wall 362 may provide the first portion 1364a and the second portion 1364b. The rod 1366 may provide the second portion 1364b.

[0382] Alternatively, at least a portion of the second portion 1364b may be a component separate from the first portion 1364a. Alternatively, the second portion 1364b may include a first portion, a second portion separated from the second portion, and a plate connecting the first portion and the second portion.

[0383] The second tray housing may include a first region 1381a having a surface facing the first portion 1364a of the second tray 1360 or in contact with the first portion 1364a. The second tray housing may also include a second region 1381b having a surface facing the second portion 1364b of the second tray 1360 or in contact with the second portion 1364b of the second tray 1360. The first region 1381a and the second region 1381b may be integrally formed. Alternatively, the first region 1381a and the second region 1381b may be separate components. As an example, the second tray support 1380 may provide the first region 1381a. The base portion 1390 may provide the second region 1381b.

[0384] The second region 1381b of the second tray housing may include a first section 1381c, a second section 1381d spaced apart from the first section 1381c, and a plate 1394 connecting the first and second sections 1381c and 1381d. For example, a plurality of first extensions 1391 may provide the first and second sections 1381c and 1381d.

[0385] The second portion 1364b of the second tray 1360 or the second region 1381b of the second tray housing may include a surface extending in a direction (for example, the Z-axis direction) that crosses the contact surface between the first and second tray assemblies. For example, the surface may include a groove, a protrusion, or a boss.

[0386] The second tray housing may include a first surface 1384a having a surface facing the second tray 1360 or in contact with the second tray 1360. As an example, an inner surface of the second tray support 1380 may provide the first surface 1384a.

[0387] The second tray housing may further include a second surface 1384b having a thickness formed together with the first surface 1384a. As an example, the outer surface of the second tray support 1380 and the outer surface of the base portion 1390 may provide the second surface 1384b.

[0388] The second side 1384b of the second tray housing may include a first portion 1384c and a second portion 1384d extending from the first portion 1384c. The first portion 1384c and the second portion 1384d may be integrally formed or provided by separate components.

[0389] The second portion 1384d of the second tray housing may include a first portion, a second portion spaced apart from the first portion, and a plate connecting the first portion and the second portion.

[0390] The second tray housing may be provided with a reinforcement portion 1384e having a surface facing or in contact with the second portion 1384d. The reinforcement portion 1384e may be integrally formed with the second portion 1384d. Alternatively, the reinforcement portion 1384e may be provided as a component separate from the second portion 1384d. As an example, the base portion 1390 may provide the reinforcement portion 1384e. The reinforcement portion 1384e may include a portion A, a portion B separated from portion A, and a plate connecting portion A and portion B. As an example, a plurality of second extension portions 1392 may provide portion A and portion B.

[0391] The reinforcement portion 1384e can be formed of a material different from that of the second surface 1384b of the second tray housing. For example, the reinforcement portion 1384e can have a greater deformation resistance than the second surface 1384b of the second tray housing. Alternatively, the reinforcement portion 1384e can have a greater resilience than the second surface 1384b of the second tray housing. Alternatively, the reinforcement portion 1384e can have a greater thermal conductivity than the second surface 1384b of the second tray housing.

[0392] The reinforcement portion 1384e or the second portion 1384d of the second tray housing may include a surface extending in a direction transverse to the surface where the first tray assembly and the second tray assembly contact each other. The surface may form a groove or a protrusion or a boss.

[0393] From another perspective, the second tray 1360 can include a support surface. The support surface can provide a second portion 1364b of the second tray 1360. The second tray housing can include a support region facing or in contact with the support surface. The second region 1381b of the second tray housing can provide the support region.

[0394] The supporting area of ​​the second tray housing may include a third portion, a fourth portion spaced apart from the third portion, and a plate connecting the third portion and the fourth portion. The third portion and the fourth portion may provide a plurality of first extensions 1391.

[0395] The supporting surface of the second tray may include a first surface, a second surface spaced apart from the second surface, and a connecting surface connecting the first surface and the second surface.

[0396] The support surface of the second tray or the support area of ​​the second tray housing may be arranged between the first column and the second column.

[0397] From another perspective, the second tray housing may include a support portion. The second portion 1384d of the second tray housing may provide the support portion. The second tray housing may be provided with a reinforcement portion 1384e including a surface facing the support portion or in contact with the support portion.

[0398] The reinforcing portion 1384e can be made of a material different from that of the supporting portion of the second tray housing. The reinforcing portion 1384e can include a portion A, a portion B separated from portion A, and a plate connecting portion A and portion B. As an example, a plurality of second extensions 1392 can provide portion A and portion B.

[0399] The support portion of the second tray housing may include a first portion, a second portion spaced apart from the first portion, and a plate connecting the first portion and the second portion. The reinforcement portion of the second tray housing or the support portion of the second tray housing may be disposed between the first column and the second column.

[0400] From another perspective, the second tray may include a support surface, and the second tray housing may include a support area facing the support surface of the second tray or in contact with the support surface of the second tray. The second tray housing may include a support portion, a reinforcement portion having a surface facing the support portion of the second tray housing or in contact with the support portion of the second tray housing, and a plate connecting the support area of ​​the second tray housing and the reinforcement portion of the second tray housing.

Claims

1. A refrigerator, wherein: include: Ice making room, providing space for generating ice; a cooler, supplying a cold flow to the ice-making chamber or operating to supply a cold flow; as well as an ice maker for generating ice using the cold flow; The ice making machine comprises: a first tray assembly having a first tray, wherein the first tray forms a part of an ice-making unit, wherein the ice-making unit is a space where water is transformed into ice by the cold flow; as well as The second tray assembly includes a second tray forming another portion of the ice-making unit and a second tray housing provided on one side of the second tray.

2. The refrigerator according to claim 1, wherein The second tray comprises: a first surface having a surface facing the ice-making unit or forming the ice-making unit; and a second surface having a surface forming a thickness together with the first surface; The second side of the second tray comprises: a first portion having a portion corresponding to the shape of the ice-making unit; and a second portion extending from the first portion; The second tray housing comprises: a first region having a surface facing the first portion of the second tray or in contact with the first portion; and The second region has a surface facing the second portion of the second tray or in contact with the second portion of the second tray.

3. The refrigerator according to claim 2, wherein: The second portion of the second tray comprises: First part; a second portion, spaced apart from the second portion; and A plate connects the first portion and the second portion.

4. The refrigerator according to claim 2, wherein: The second region of the second tray housing includes: first section; a second section, spaced apart from the first section; and A plate connects the first section and the second section.

5. The refrigerator according to claim 2, wherein The second portion of the second tray or the second region of the second tray housing includes a surface extending in a direction transverse to the surface where the first and second tray assemblies contact each other.

6. The refrigerator according to claim 1, wherein The second tray housing comprises: a first surface having a surface facing or in contact with the second tray; and a second surface having a surface forming a thickness together with the first surface; The second side of the second tray housing includes a first portion and a second portion extending from the first portion; The second tray housing is provided with a reinforcement portion having a surface facing the second portion or in contact with the second portion.

7. The refrigerator according to claim 6, wherein The reinforcement portion includes: Part A; A portion B, separated from the portion A; and A plate connects the A portion and the B portion.

8. The refrigerator according to claim 6, wherein The reinforcing portion is formed of a material different from a material of the second surface of the second tray housing.

9. The refrigerator according to claim 6, wherein The second portion of the second tray housing comprises: First part; a second portion, spaced apart from the first portion; and A plate connects the first portion and the second portion.

10. The refrigerator according to claim 6, wherein The ice making units are arranged along a first row and a second row; The reinforcement portion or second portion of the second tray housing is disposed between the first and second columns.

11. The refrigerator according to claim 6, wherein The reinforcement or second portion of the second tray housing includes a surface extending in a direction transverse to the surface where the first and second tray assemblies contact each other.

12. The refrigerator according to claim 1, wherein The second tray includes a support surface; The second tray housing includes a support area facing the support surface or in contact with the support surface.

13. The refrigerator according to claim 12, wherein: The support area of ​​the second tray housing includes: The third part; a fourth portion, spaced apart from the third portion; and a plate connecting the third portion and the fourth portion; The supporting surface of the second tray includes: First side; a second side, spaced apart from the second side; and A connecting surface connects the first surface and the second surface.

14. The refrigerator according to claim 12, wherein The ice making units are arranged along a first row and a second row; The supporting surface of the second tray or the supporting area of ​​the second tray housing is arranged between the first column and the second column.

15. The refrigerator according to claim 1, wherein The second tray housing includes a support portion; The second tray housing is provided with a reinforcement portion, and the reinforcement portion includes a surface facing the support portion or in contact with the support portion.

16. The refrigerator according to claim 15, wherein The reinforcing portion is provided by a material different from the material of the supporting portion of the second tray shell; or The reinforcement portion includes: Part A; A portion B, separated from the portion A; and A plate connects the A portion and the B portion.

17. The refrigerator according to claim 15, wherein The supporting portion of the second tray housing includes: First part; a second portion, spaced apart from the first portion; and A plate connects the first portion and the second portion.

18. The refrigerator according to claim 15, wherein The ice making units are arranged along a first row and a second row; The reinforcing portion of the second tray shell or the supporting portion of the second tray shell is arranged between the first column and the second column.

19. The refrigerator according to claim 1, wherein The second tray includes a support surface, and the second tray housing includes a support area facing the support surface of the second tray or connected to the support surface of the second tray; The second tray housing further comprises: Support part; a reinforcing portion, comprising a surface facing the supporting portion of the second tray shell or in contact with the supporting portion of the second tray shell; and A plate connects the supporting area of ​​the second tray shell and the reinforcing portion of the second tray shell.

20. A refrigerator, wherein: include: Ice making room, providing space for generating ice; a cooler, supplying a cold flow to the ice-making chamber or operating to supply a cold flow; as well as an ice maker for generating ice using the cold flow; The ice making machine comprises: a first tray forming a portion of an ice-making unit, the ice-making unit being a space where water is transformed into ice by the cold flow; a second tray forming another portion of the ice-making unit; a second tray support member in contact with the second tray, a portion of the second tray extending through the second tray support member; and The base portion is connected to the second tray supporting member and the second tray penetrating the second tray supporting member.

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