Refrigerator

Abstract

The present invention relates to a refrigerator. In an aspect of the present invention, the refrigerator comprises: a storage chamber storing food; a door opening / closing the storage chamber; an ice-making chamber provided on the door or in the storage chamber; a cooler for supplying cold air to the storage chamber; cells which are provided in the ice-making chamber and are spaces where a phase of a material changes from a liquid phase to a solid phase; a first tray providing a first wall forming at least some parts of the cells; and a second tray providing a second wall forming another parts of the cells. The degree of adhesion between the material that is phase-changed into the solid phase and the first tray may be less than the degree of adhesion between the material that is phase-changed to the solid phase and the second tray.

Description

refrigerator

[0001] The present specification relates to an ice maker and / or a refrigerator equipped with an ice maker.

[0002] In general, a refrigerator is a home appliance that can store food at a low temperature in an internal storage space that is sealed by a door. By using cold to cool the inside of the storage space, the stored food can be kept in a refrigerated or frozen state.

[0003] Refrigerators typically come equipped with an ice maker to produce ice. This ice maker draws water from a water source or water tank into a tray, cools the water, and creates ice. Furthermore, the ice maker can remove the ice from the tray using a heating or twisting method. This type of ice maker, which automatically supplies water and removes ice, is designed to open upward to scoop up the formed ice.

[0004] Ice produced by an ice maker of this type has at least one flat surface, such as a crescent or cubic shape. Meanwhile, spherical ice can be more convenient to use and offer a unique user experience. Furthermore, by minimizing the contact area between ice cubes during storage, clumping of ice cubes can be minimized.

[0005] Additionally, recent attempts have been made to produce transparent ice.

[0006] An embodiment of the present invention aims to provide an ice maker and / or a refrigerator equipped with an ice maker, including an ice maker having improved structures of a first tray and a second tray so as to be able to produce ice of a desired shape.

[0007] An embodiment of the present invention aims to provide a tray assembly including a first tray and a second tray having an ice-making space larger than an ice-making space of the first tray so that the ice adhesion force of the first tray can be smaller than the ice adhesion force of the second tray.

[0008] An embodiment of the present invention aims to provide a tray assembly in which a contact area between a first tray and ice is formed smaller than a contact area between a second tray and ice so as to reduce ice adhesion on the first tray.

[0009] An embodiment of the present invention aims to provide a tray assembly in which the height of the first tray is formed to be smaller than the height of the second tray based on the ice-freezing direction so as to reduce ice adhesion in the first tray.

[0010] An embodiment of the present invention provides an ice maker and / or a refrigerator equipped with an ice maker, wherein a tray is provided with an opening smaller than the size of ice, and the tray is made of a material that is deformable so that the opening expands during the ice-making process.

[0011] An embodiment of the present invention provides an ice maker and / or a refrigerator equipped with an ice maker, wherein ice can be easily separated from a tray assembly during the freezing process.

[0012] An embodiment of the present invention aims to provide a tray assembly in which water can be supplied to an ice-making space through a first tray or a second tray so that water supply can be easily achieved.

[0013] An embodiment of the present invention aims to provide an ice maker and / or a refrigerator equipped with an ice maker that can prevent an air pocket phenomenon at an ice-making position of a tray by providing a tray having a through hole (vent hole) that can discharge air within the cell.

[0014] An embodiment of the present invention aims to provide an ice maker and / or a refrigerator equipped with an ice maker, including a tray having a drain connected to a through hole to reduce the phenomenon of water flowing in through the through hole freezing.

[0015] Embodiments of the present invention may include a first tray forming a portion of a cell and a second tray forming another portion of the cell.

[0016] The degree of adhesion between the first tray and the ice may be less than the degree of adhesion between the second tray and the ice.

[0017] The first tray may be made of a material capable of reducing ice adhesion. For example, the first tray may be made of silicone.

[0018] The size of the first tray may be smaller than the size of the second tray so that the area of ​​some of the cells may be smaller than the area of ​​other parts of the cells.

[0019] Based on the freezing direction of the ice produced in the above cell, the height of the first tray may be smaller than the height of the second tray.

[0020] The ice-making space of the second tray may be larger than the ice-making space of the first tray.

[0021] The contact area between the first tray and the ice may be formed to be smaller than the contact area between the second tray and the ice.

[0022] A coating portion capable of reducing the adhesion of ice may be provided on the surface of the first tray to which the ice is attached.

[0023] The first tray may be arranged to cover the opening of the second tray.

[0024] The diameter of the opening of the second tray may be formed smaller than the diameter of the frozen ice.

[0025] The second tray may be made of a deformable material so that the opening expands during the ice-making process.

[0026] The above cells are provided in multiple numbers, and the diameter of the first tray may be formed differently for each cell so that the ice-breaking force in each cell can vary over time during the ice-breaking process. Accordingly, the torque of the motor can be distributed during the ice-breaking process.

[0027] The above cells are provided in multiple numbers, and the diameter of the opening of the second tray may be formed differently for each cell so that the ice-breaking force in each cell can vary over time during the ice-breaking process. Accordingly, the torque of the motor can be distributed during the ice-breaking process.

[0028] The above cells are provided in multiple numbers, and the diameter of the ice (cell) can be formed differently for each cell so that the ice-breaking force in each cell can vary over time during the ice-breaking process. Accordingly, the motor torque can be distributed during the ice-breaking process.

[0029] For each cell, the contact area between the ice and the second tray can be formed differently. In this case, the smaller the contact area between the ice and the second tray, the easier ice separation occurs and the more the motor torque can be distributed.

[0030] A pusher is included that comes into contact with the second tray during the icing process, and the pusher may include a plurality of pushers corresponding to a plurality of cells.

[0031] The above-described plurality of pushers may each have different lengths, and a pusher with a longer length may first contact one cell to initiate the movement, and then a pusher with a shorter length may contact another cell to initiate the movement. Accordingly, the motor torque during the movement process may be distributed.

[0032] The above cell may have a spherical or oval shape.

[0033] For example, to facilitate ice breaking, the cells may have an elliptical shape so that the diameter in the direction perpendicular to the direction of ice breaking forms a minor diameter.

[0034] It includes a water supply unit for supplying fluid, and water discharged from the water supply unit can be supplied to the ice making space through the first tray or the second tray.

[0035] The fluid discharged from the above water supply unit can flow into the internal space of the cell through the guide surface of the first tray.

[0036] The fluid discharged from the above-mentioned water supply unit can flow into the internal space of the cell through the extension wall of the second tray.

[0037] With this configuration, there is no need to form water supply penetration holes in the first or second tray to perform cell water supply. Therefore, the problem of difficulty in realizing a desired ice shape due to material expansion through the water supply penetration holes during ice making can be solved.

[0038] In the water supply process through the water supply unit, the second tray may be moved or in a moved position relative to the first tray so that the cell is opened to the outside.

[0039] The first tray above forms a through hole that can discharge air within the cell, thereby preventing air pockets from forming during the ice making process.

[0040] To reduce the phenomenon of water flowing in through the above-mentioned through hole freezing, the first tray may have a drain connected to the through hole.

[0041] When the first tray and the second tray are in the ice-making position, a portion of the first tray and a portion of the second tray may come into contact.

[0042] The first tray may include a first portion forming an ice-making shell and a second portion extending outwardly from the first portion.

[0043] The second tray may include a first portion forming another portion of the ice-making shell and a second portion extending outwardly of the first portion.

[0044] The first portion of the first tray and the first portion of the second tray can be smoothly extended to form an outer surface of the ice.

[0045] The first tray includes a first contact end that contacts the second tray, and the first contact end can be formed at a boundary between the first portion and the second portion of the first tray.

[0046] The second portion of the first tray can extend outward from the first contact end.

[0047] The second tray includes a second contact end that contacts the first contact end of the first tray, and the second contact end can be formed at a boundary between the first portion and the second portion of the second tray.

[0048] The second portion of the second tray can extend outward from the second contact end.

[0049] The radius of curvature of the second portion of the first tray and the radius of movement (or rotation) of the second portion of the second tray can be formed at different positions. Accordingly, the sealing between the first and second trays at the ice-making position is improved, and the second tray can be prevented from interfering with the first tray when moving from the ice-making position to the ice-making position.

[0050] In one aspect of the present invention, a refrigerator may include a storage room in which food is stored, a door for opening and closing the storage room, an ice making room provided in the door or the storage room, a cooler for supplying cold to the storage room, a cell provided in the ice making room and being a space in which a substance changes phase from a liquid to a solid state, a first tray providing a first wall forming at least a portion of the cell, and a second tray providing a second wall forming another portion of the cell.

[0051] The adhesion between the material changed into the solid phase and the first tray can be formed to be smaller than the adhesion between the material changed into the solid phase and the second tray.

[0052] The contact area between the first tray and the material that has been phase-changed into the solid phase may be formed to be smaller than the contact area between the second tray and the material that has been phase-changed into the solid phase.

[0053] The first tray forms a first opening that contacts the second tray, and the second tray forms a second opening that contacts the first tray, and the size of the first opening can be formed to be smaller than the size of the second opening.

[0054] Based on the center (C1) of the cell, the diameter (D1) of the cell may be formed to be larger than the diameter (D2) of the portion where the first cell surface constituting the inner surface of the first wall and the second cell surface constituting the inner surface of the second wall come into contact.

[0055] Based on the center (C1) of the above cell, the central angle formed by the first cell surface can be formed smaller than the central angle formed by the second cell surface.

[0056] The first wall and the second wall contact each other to form the cell, and the circumferential length of the first wall may be formed to be smaller than the circumferential length of the second wall.

[0057] The first tray and the second tray are in contact in a first direction (e.g., up-down direction), and the height of the first tray in the first direction (up-down direction) can be formed to be smaller than the height of the second tray in the first direction (up-down direction).

[0058] The material of the first tray may be composed of a material having lower adhesion than the material of the second tray.

[0059] The first tray may include a protrusion that comes into contact with the solid-phase material so that the attachment area of ​​the first tray may be smaller than the attachment area of ​​the second tray.

[0060] The first tray may include a coating portion provided at a portion that comes into contact with the solid-phase-changed material so that the attachment area of ​​the first tray may be smaller than the attachment area of ​​the second tray.

[0061] The above cell can be formed so that the diameter (D3) in the direction corresponding to the moving direction is larger than the diameter (D1) in the direction perpendicular to the moving direction so that an elliptical shape is implemented.

[0062] It includes a bracket that combines the first tray and forms a suction hole through which the cold is supplied, and the second tray can move relative to the first tray.

[0063] The cell includes a water supply unit for supplying the material, and the water supply unit can be arranged to overlap the first tray or the second tray so as to drop the material onto the surface of the first tray or the surface of the second tray.

[0064] The first wall includes a first cell surface forming a part of the inner surface of the cell and an outer surface forming an outer wall of the first cell surface, and the outer surface can form a guide surface overlapping the water supply unit so that a material discharged from the water supply unit comes into contact with it.

[0065] The second tray may include an extension wall surrounding at least a portion of the first tray, and the extension wall may include a portion that overlaps the water supply portion so that a material discharged from the water supply portion comes into contact with the extension wall.

[0066] The first tray may include a through hole formed in the first wall to remove air from the cell; and a drain hole connected to the through hole to discharge the material.

[0067] The first tray may include a guide wall extending from the first wall and including a fastening portion coupled to the ice making chamber, and the drainage hole may be formed in the guide wall.

[0068] The first tray may include a through hole formed in the first wall to remove air from the cell; and a portion extending to surround at least a portion of the through hole, and may include a drainage guide to guide discharge of the material.

[0069] The first wall of the first tray may include a first cell wall defining at least a portion of the cell and an extension wall extending from the first cell wall and coupled to the ice making chamber.

[0070] A heater receiving portion for placing a heater can be formed in the space defined by the first cell wall and the extension wall.

[0071] From another perspective, a refrigerator may include a storage room in which food is stored, a door for opening and closing the storage room, an ice making room provided in the door or the storage room, a cooler for supplying cold to the storage room, a cell provided in the ice making room as a space in which a substance changes from a liquid to a solid state, a water supply unit for supplying a substance to the cell, a first tray providing a first wall forming at least a portion of the cell, and a second tray providing a second wall forming another portion of the cell.

[0072] The first wall may include a guide surface overlapping the water supply unit so that the material discharged from the water supply unit contacts the material before it flows into the cell.

[0073] According to an embodiment of the present invention, the structures of the first tray and the second tray can be improved to easily produce ice of a desired shape.

[0074] According to an embodiment of the present invention, the ice-making apparatus includes a first tray and a second tray having an ice-making space larger than the ice-making space of the first tray, so that the ice adhesion of the first tray may be less than the ice adhesion of the second tray.

[0075] According to an embodiment of the present invention, the contact area between the first tray and the ice is formed to be smaller than the contact area between the second tray and the ice, so that the ice adhesion force on the first tray can be reduced.

[0076] According to an embodiment of the present invention, the height of the first tray is formed to be smaller than the height of the second tray based on the ice-moving direction, so that the ice adhesion force on the first tray can be reduced.

[0077] According to an embodiment of the present invention, a tray having an opening smaller than the size of ice is provided, and the tray is made of a material that can be deformed so that the opening expands during the ice-breaking process, so that ice-breaking can be facilitated.

[0078] According to an embodiment of the present invention, water can be easily supplied to the ice making space through the first tray or the second tray.

[0079] According to an embodiment of the present invention, by providing a tray having a through hole that can discharge air within the cell, an air pocket phenomenon can be prevented at the ice-making position of the tray, and ice of a desired shape can be produced.

[0080] According to an embodiment of the present invention, the tray has a drain connected to the through hole, thereby reducing the phenomenon of water flowing in through the through hole freezing and producing ice of a desired shape.

[0081] FIG. 1 is a drawing illustrating a refrigerator according to an embodiment of the present invention.

[0082] Figure 2 is a perspective view showing an ice maker according to a first embodiment of the present invention.

[0083] Figure 3 is a front view of the ice maker of Figure 2.

[0084] Figure 4 is a plan view of the ice maker of Figure 2.

[0085] Figure 5 is a bottom view of the ice maker of Figure 2.

[0086] Figure 6 is an exploded perspective view of an ice maker according to a first embodiment of the present invention.

[0087] Figure 7 is a cross-sectional view taken along line 7-7 of Figure 4.

[0088] Figure 8 is a bottom perspective view of an ice maker with the tray assembly removed according to the first embodiment of the present invention.

[0089] Figure 9 is a bottom perspective view showing the configuration of a bracket according to the first embodiment of the present invention.

[0090] Fig. 10 is a perspective view showing the configuration of a tray assembly according to a first embodiment of the present invention.

[0091] Figure 11 is a cross-sectional view taken along line 11-11 of Figure 10.

[0092] Fig. 12 is a perspective view showing the configuration of a first tray according to a first embodiment of the present invention.

[0093] Fig. 13 is a perspective view showing the arrangement of a water supply unit and a first tray according to a first embodiment of the present invention.

[0094] Figure 14 is a plan view of Figure 13.

[0095] FIG. 15 is a perspective view of the arrangement of a water supply unit and a tray assembly when water is supplied through a tray assembly according to the first embodiment of the present invention.

[0096] Figure 16 is a cross-sectional view taken along line 16-16 of Figure 15.

[0097] FIG. 17 is a plan view of the arrangement of a water supply unit and a tray assembly when water is supplied through a tray assembly according to the first embodiment of the present invention.

[0098] Figures 18 to 21 are drawings showing ice making, ice removal, and water supply in an ice maker according to a first embodiment of the present invention.

[0099] Figure 22 is an exploded perspective view of an ice maker according to a second embodiment of the present invention.

[0100] Figure 23 is a bottom perspective view showing the configuration of a bracket according to a second embodiment of the present invention.

[0101] Fig. 24 is a perspective view showing the configuration of a first tray according to a second embodiment of the present invention.

[0102] Fig. 25 is a bottom view showing the configuration of a first tray according to a second embodiment of the present invention.

[0103] Fig. 26 is a cross-sectional view taken along line 26-26 of Fig. 24.

[0104] Fig. 27 is a cross-sectional view showing the configuration of an ice maker according to a second embodiment of the present invention.

[0105] FIG. 28 and FIG. 29 are drawings showing modified examples of the configuration of the first tray and the ice heater in the ice maker according to the second embodiment of the present invention.

[0106] Figure 30 is an exploded perspective view of an ice maker according to a third embodiment of the present invention.

[0107] Fig. 31 is a perspective view showing the configuration of a first tray according to a third embodiment of the present invention.

[0108] Fig. 32 is a bottom view showing the configuration of a first tray according to a third embodiment of the present invention.

[0109] Figure 33 is a cross-sectional view taken along line 33-33 of Figure 31.

[0110] Figure 34 is a cross-sectional view showing the configuration of an ice maker according to a third embodiment of the present invention.

[0111] FIG. 35 is a cross-sectional view showing the operation of the ice guide when the ice-making operation is performed in the ice maker according to the third embodiment of the present invention.

[0112] Figure 36 is an exploded perspective view of an ice maker according to a fourth embodiment of the present invention.

[0113] Fig. 37 is a perspective view showing the configuration of a first tray according to a fourth embodiment of the present invention.

[0114] Figure 38 is a plan view showing the configuration of a first tray according to a fourth embodiment of the present invention.

[0115] Fig. 39 is a bottom view showing the configuration of a first tray according to a fourth embodiment of the present invention.

[0116] Figure 40 is an exploded perspective view of an ice maker according to a fifth embodiment of the present invention.

[0117] Figure 41 is a bottom perspective view showing the configuration of a bracket according to a fifth embodiment of the present invention.

[0118] Fig. 42 is a perspective view showing the configuration of a first tray according to a fifth embodiment of the present invention.

[0119] Figure 43 is a plan view showing the configuration of a first tray according to a fifth embodiment of the present invention.

[0120] Figure 44 is a cross-sectional view taken along line 44-44 of Figure 42.

[0121] Figure 45 is a cross-sectional view taken along line 45-45 of Figure 42.

[0122] Figure 46 is a cross-sectional view showing the configuration of an ice maker according to a fifth embodiment of the present invention.

[0123] Figure 47 is a cross-sectional view showing the configuration of a plurality of cells according to the fifth embodiment of the present invention.

[0124] Figure 48 is a cross-sectional view showing an additional embodiment regarding the configuration of the above multiple cells.

[0125] Figure 49 is a cross-sectional view showing another additional embodiment regarding the configuration of the above multiple cells.

[0126] Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. When designating components in each drawing, it should be noted that, where possible, identical components will be given the same reference numerals, even if they appear in different drawings. Furthermore, when describing embodiments of the present invention, detailed descriptions of related known structures or functions will be omitted if they are deemed to hinder understanding of the embodiments of the present invention.

[0127] In describing components of embodiments of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only intended to distinguish the components from other components, and the nature, order, or sequence of the components are not limited by the terms. When it is described that a component is "connected," "coupled," "supported," or "connected" to another component, it should be understood that the component may be directly "connected," "coupled," "supported," or "connected" to the other component, but that another component may also be "connected," "coupled," "supported," or "connected" between each component.

[0128] Meanwhile, in describing the components of an embodiment of the present invention, the description "at least one of components A and B" can be understood to include three embodiments: (1) A alone, (2) B alone, and (3) both A and B.

[0129] Additionally, in describing components of an embodiment of the invention, the meaning of the description "at least one of components A or B" can be understood to include three embodiments meaning (1) A alone, (2) B alone, and (3) both A and B. In other words, the meaning of the description "at least one of components A or B" can be the same as the meaning of the description "at least one of components A and B."

[0130] The refrigerator according to an embodiment of the present invention may include a storage compartment in which items (e.g., food, medicine, etc.) are stored. The refrigerator may include a door for opening and closing the storage compartment. The refrigerator may store the items in a refrigerated or frozen state. The refrigerator may include an ice-making compartment in which at least a portion of an ice maker, which will be described later, is disposed. The ice-making compartment may be provided in the storage compartment and / or the door.

[0131] An ice maker according to an embodiment of the present invention may include a cell, which is a space in which the product (e.g., water) changes phase into ice. The ice maker may include a tray assembly. The tray assembly may include a tray, a tray case, or the tray and the tray case. The tray may include a wall forming at least a portion of the cell. The tray case may include a wall connected to the tray, coupled to the tray, supported by the tray, or surrounding at least a portion of the tray. The tray case may include at least one of a tray cover and a tray supporter. The tray assembly may include a first tray assembly and a second tray assembly. The first tray assembly may include a first tray, a first tray case, or the first tray and the first tray case. The first tray may include a wall forming a first portion of the cell. The first tray case may include a wall connected to the first tray, coupled to the first tray, supported by the first tray, or surrounding at least a portion of the first tray. The first tray case may include at least one of a first tray cover and a first tray supporter. The second tray assembly may include a second tray, a second tray case, or the second tray and a second tray case. The second tray may include a wall forming a second portion of the cell. The second tray case may include a wall connected to the second tray, coupled to the second tray, supported by the second tray, or surrounding at least a portion of the second tray. The second tray case may include at least one of a second tray cover and a second tray supporter. The ice maker may include a bracket.The bracket may cover at least a portion of the tray assembly or may accommodate at least a portion of the tray assembly.

[0132] The ice maker and / or the refrigerator may include a pusher. The pusher may be provided to press the ice and / or the tray assembly so as to separate the ice from the tray assembly. The pusher may include a first edge formed with a surface that presses the ice and / or the tray assembly. The pusher may include a bar extending from the first edge. The pusher may include a second edge positioned at an end of the bar.

[0133] A pressurizing portion that pressurizes the pusher may be formed on the tray assembly, and the pusher may be configured to apply pressure to one surface of the tray assembly. The pusher may be defined as a non-penetrating pusher.

[0134] A first edge of the pusher may be movable along a surface of a tray defining at least a portion of the cell at a first point outside the cell. The pusher may be defined as a movable pusher. The pusher may be connected to a drive unit, a rotational axis of the drive unit, or a drive connected to a movable tray assembly.

[0135] The above pusher can further pressurize the pressurized portion after contacting the pressurized portion at a first point outside the cell. The pusher can be coupled to a fixed end. The pusher can be defined as a fixed pusher.

[0136] The ice maker and / or the refrigerator may include a heater. The heater (e.g., a wire heater, a cord heater, a radiant heater, etc.) may supply heat to the cell and / or the storage compartment. The heater may directly supply heat by contacting the tray assembly and / or the cell. The heater may indirectly supply heat (e.g., hot or warm air) without being connected to the tray assembly and / or the cell.

[0137] The ice maker and / or the refrigerator may include a cooler (e.g., an evaporator, a refrigerant pipe, a refrigerant valve, a fan, a damper, a thermoelectric module, etc.). The cooler may directly supply cold by contacting the tray assembly and / or the cell. The cooler may indirectly supply heat (e.g., cold or cold air) without being connected to the tray assembly and / or the cell.

[0138] The ice maker and / or the refrigerator may include a temperature sensor. The temperature sensor may be provided to detect the temperature of an item (e.g., water) or ice in the cell.

[0139] The ice maker and / or the refrigerator may include a driving device. The driving device may be connected to the tray assembly and / or the pusher.

[0140] The refrigerator of the present invention may include a tray assembly forming a portion of a cell, which is a space where water changes into ice, a cooler for supplying cold to the cell, a water supply unit for supplying water to the cell, and a controller. The refrigerator may further include a driving unit capable of moving the tray assembly. The refrigerator may further include a storage compartment in which food is stored in addition to the cell. The refrigerator may further include a cooler for supplying cold to the storage compartment. The refrigerator may further include a temperature sensor for detecting a temperature within the storage compartment. The controller may control at least one of the water supply unit and the cooler. The controller may control at least one of the heater and the driving unit.

[0141] The controller may control the cooler to supply cold to the cell after moving the tray assembly to the ice-making position. The controller may control the tray assembly to move forward to the ice-removing position to remove ice from the cell after ice production in the cell is completed. The controller may control the tray assembly to move in the reverse direction to the water supply position after ice-removing is completed and then start supplying water, and may control the tray assembly to move to the ice-making position after the water supply is completed.

[0142] In the present invention, a cell is defined as a space located within the storage chamber where water undergoes a phase change into ice. The circumference of the cell refers to the outer surface of the cell, regardless of the shape of the cell. In another aspect, the outer surface of the cell may refer to the inner surface of the wall forming the cell.

[0143] In the present invention, the tray may be defined as a wall that partitions the cell and the interior of the storage chamber. The tray may be defined as a wall that forms at least a portion of the cell.

[0144] In the present invention, the refrigerator may include at least one tray assembly configured to be movable and connected to a driving unit. The driving unit is configured to move the tray assembly in at least one axial direction among the X, Y, and Z axes or to rotate the tray assembly around at least one axis among the X, Y, and Z axes.

[0145] In the present invention, the refrigerator may include at least one tray assembly in which the heater is disposed. The heater may be disposed near the tray assembly so as to heat a cell formed by the tray assembly in which the heater is disposed. The heater may include a heater (hereinafter, "transparent ice heater") that is controlled to be turned on at least in a portion of the period during which the cooler supplies cold so that bubbles dissolved in water inside the cell move from a portion where ice is generated toward liquid water, thereby generating transparent ice. The heater may include a heater (hereinafter, "separating ice heater") that is controlled to be turned on at least in a portion of the period after ice-making is completed so that ice can be easily separated from the tray assembly.

[0146] In the present invention, the cell may be cooled by the cooler that cools the storage compartment. For example, the storage compartment where the cell is located may be a freezer that can be controlled to a temperature lower than 0 degrees, and the cell may be cooled by the cooler that cools the freezer.

[0147] In the present invention, the cell may be cooled by a cooler other than the cooler that cools the storage compartment. For example, the storage compartment where the cell is located may be a refrigerator that can be controlled to a temperature higher than 0 degrees Celsius, and the cell may be cooled by a cooler other than the cooler that cools the refrigerator compartment.

[0148] In the present invention, the degree of adhesion refers to the degree to which ice and the container are attached during the process of water in the container turning into ice, and is defined as a value determined by the shape including the thickness of the container, the material of the container, the time elapsed after the water in the container turns into ice, etc.

[0149] This relates to transparent ice. Water contains dissolved air bubbles, and ice solidified with these bubbles can have low transparency due to these bubbles. Therefore, by encouraging the air bubbles to migrate from the first frozen portion of the cell to the unfrozen portion during the freezing process, the transparency of the ice can be improved.

[0150] During the ice-making process, the transparency of the resulting ice can be enhanced by inducing air bubbles to migrate or be trapped from a region in the cell where water first solidifies to another region in the liquid state. The direction in which the air bubbles migrate or are trapped may be similar to the direction in which the ice is made. This region may be a region in the cell where water is desired to solidify later.

[0151] Hereinafter, a specific embodiment of the refrigerator of the present invention will be described with reference to the drawings.

[0152] FIG. 1 is a drawing illustrating a refrigerator according to an embodiment of the present invention.

[0153] Referring to FIG. 1, a refrigerator according to an embodiment of the present invention may include a cabinet (14) including a storage compartment and a door for opening and closing the storage compartment. The storage compartment may include a refrigerator compartment (18) and a freezer compartment (32). The refrigerator compartment (14) is arranged at the upper side, and the freezer compartment (32) is arranged at the lower side, so that each storage compartment can be individually opened and closed by its own door. As another example, the freezer compartment may be arranged at the upper side, and the refrigerator compartment may be arranged at the lower side. Alternatively, the freezer compartment may be arranged at one of the left and right sides, and the refrigerator compartment may be arranged at the other side.

[0154] The above freezer (32) can be divided into first and second spaces (e.g., lower space and upper space), and the first space can be equipped with a drawer (40) that can be pulled out and inserted from the first space.

[0155] The above door may include a plurality of doors (10, 20, 30) that open and close the refrigerator compartment (18) and the freezer compartment (32). The plurality of doors (10, 20, 30) may include some or all of the doors (10, 20) that open and close the storage compartment and the doors (30) that open and close the storage compartment in a sliding manner. Even if the freezer compartment (32) can be opened and closed by a single door (30), it may be provided so as to be separated into two spaces.

[0156] In this embodiment, the freezer (32) may be referred to as a first storage room, and the refrigerator (18) may be referred to as a second storage room. The freezer (32) may be equipped with an ice maker (200) capable of producing ice. The ice maker (200) may be located, for example, in a portion of the freezer (32) (e.g., an upper space).

[0157] An ice bin (60) into which ice produced by the ice maker (200) is dropped and stored may be placed on one side (e.g., the lower side) of the ice maker (200). A user may take the ice bin (60) out of the freezer (32) and use the ice stored in the ice bin (60). The ice bin (60) may be coupled to one side (e.g., the upper side) of a wall dividing a first space (e.g., the upper space) and a second space (e.g., the lower space) of the freezer (32).

[0158] Although not shown, the cabinet (14) is provided with a duct (not shown) for supplying cold to the ice maker (200). The duct guides the cold that has exchanged heat with the refrigerant flowing through the evaporator toward the ice maker (200). For example, the duct may be arranged at one side (e.g., the rear) of the cabinet (14) and discharge the cold toward the other side (e.g., the front) of the cabinet (14). The ice maker (200) may be positioned at one side (e.g., the front) of the duct. Although not limited, the discharge port of the duct may be provided at one or more of the first side wall (e.g., the rear wall) and the second side wall (e.g., the upper wall) of the freezer (32).

[0159] Although the ice maker (200) is described above as being installed in the freezer (32), the space in which the ice maker (200) can be located is not limited to the freezer (32), and the ice maker (200) can be located in various spaces as long as it can be supplied with cold. Therefore, the following description will be given as the ice maker (200) being located in the storage room.

[0160] FIG. 2 is a perspective view showing an ice maker according to a first embodiment of the present invention, FIG. 3 is a front view of the ice maker of FIG. 2, FIG. 4 is a plan view of the ice maker of FIG. 2, FIG. 5 is a bottom view of the ice maker of FIG. 2, and FIG. 6 is an exploded perspective view of the ice maker according to the first embodiment of the present invention.

[0161] Referring to FIGS. 2 to 6, an ice maker (200) according to a first embodiment of the present invention may include a bracket (220) that supports a tray assembly. Each component of the ice maker (200) may be provided inside or outside the bracket (220), so that the ice maker (200) may form a single assembly. The bracket (220) may be coupled to at least one surface of the storage compartment.

[0162] The bracket (220) may include a first wall (221) having a through hole (226) formed therein. At least a portion of the first wall (221) may extend in a first direction (e.g., horizontally) and be coupled to one surface of the storage compartment. A fastening hole (228) through which a fastening member passes may be formed at a corner of the first wall (221). The bracket (220) may be coupled to the storage compartment through a fastening member coupled to the fastening hole (228).

[0163] The first wall (221) may include a guide protrusion (228a) for guiding an electric wire connected to an ice maker. A plurality of the guide protrusions (228a) may be provided, and may be provided in various shapes depending on the extension direction of the electric wire.

[0164] The above bracket (220) may include two second walls (222) extending in one direction (e.g., downward) from both sides of the first wall (221). The space between the two second walls (222) may form a space in which the tray assembly and the driving unit (510) are arranged.

[0165] One of the two second walls (222) may cover the driving unit (510). The other of the two second walls (222) may function as a preventive plate to prevent ice from falling into the ice bin (60) or ice stored in the ice bin (60) from falling, and may form a wall penetration hole (222a) with at least a portion thereof penetrated to prevent frost formation.

[0166] The bracket (220) may include a third wall (223) protruding from the first wall (221). The third wall (223) may protrude from the first wall (221) in a direction toward the storage compartment. The third wall (223) may include a first part (223a) extending in a direction corresponding to one direction (e.g., front-back direction) of the storage compartment, and a second part (223b) extending from one end (e.g., front end) of the first part (223a) in the other direction (e.g., left-right direction). The third wall (223) may include a hook (223c) coupled to one surface (e.g., upper surface) of the storage compartment. For example, the hook (223c) may be provided on the second part (223b).

[0167] A water supply unit (240) can be coupled to the second part (223b). The water supply unit (240) includes a hook (248), and the hook (248) can be hooked to one end (e.g., the upper end) of the second part (223b).

[0168] The bracket (220) may be formed with a suction hole (224a) through which cold air from the storage chamber flows toward the tray assembly. The suction hole (224a) may be formed in a side wall of the bracket (220). For example, the suction hole (224a) may be formed in a space between the second wall (222) and the third wall (223). From another perspective, the suction hole (224a) may be formed by penetrating at least a portion of the second wall (222).

[0169] Cold can be sucked from the side of the bracket (220) through the suction hole (224a) toward the tray assembly side and act as cold for ice making.

[0170] The through hole (226) of the first wall (221) may function as an outlet through which cold air passing through the tray assembly is discharged. The through hole (226) may be provided in multiple numbers and formed in a first direction (e.g., horizontal direction) of the first wall (221).

[0171] At least a portion of a water supply unit (240) may be arranged in a first through-hole (226a) among the plurality of through-holes (226). The water supply unit (240) may extend toward the tray assembly by passing through the first through-hole (226a) while being supported by the third wall (223). The discharge unit (243, see FIG. 7) of the water supply unit (240) may be located on one side (e.g., the lower side) of the first through-hole (226a).

[0172] The above-described plurality of through holes (226) may include a second through hole (226b) and a third through hole (226c) formed on both sides of the first through hole (226a). Through the second through hole (226b) and the third through hole (226c), one end (e.g., the upper end) of the tray assembly may be exposed to one side (e.g., the upper side) of the bracket (220).

[0173] The above bracket (220) may include a guide wall (225) that guides cold sucked through the suction hole (224a) toward the tray assembly. The guide wall (225) may extend from the third wall (223) toward the central portion of the bracket (220).

[0174] For example, the guide wall (225) may include a portion extending roundly from the third wall (223) toward the cell (360). The cell (360) may be positioned closer to one end (e.g., a front end) than to the other end (e.g., a rear end).

[0175] The bracket (220) may include a blocking plate (227a) that prevents cold air sucked through the suction hole (224a) from being discharged from the bracket (220) instead of toward the tray assembly. For example, the blocking plate (227a) may extend in one direction (e.g., upward) from the first wall (221). The blocking plate (227a) may be spaced apart in one direction (e.g., laterally) from the suction hole (224a), and a plurality of cells (360) may be arranged between the suction hole (224a) and the blocking plate (227a).

[0176] That is, the blocking plate (227a) is positioned further from the suction hole (226a) than the cell (360) furthest from the suction hole (226a), thereby preventing the phenomenon in which cold air bypasses multiple cells (360) and is discharged from the bracket (220).

[0177] The bracket (220) may include a stopper (250) that contacts the tray assembly. The stopper (250) may extend in the other direction (e.g., downward) from the first wall (221) and may be positioned to contact at least a portion of the tray assembly. The stopper (250) may have a bar shape.

[0178] One end (e.g., the lower end) of the first wall (221) may include a stopper coupler (227) to which the stopper (250) is coupled. The stopper (250) may extend in one direction (e.g., downward) from the stopper coupler (227) and may contact the second tray (400).

[0179] When the second tray (400) moves forward and is in the ice-making position, the peripheral portion of the second tray (400) can contact the stopper (250). By this configuration, further movement of the second tray (400) can be restricted by the stopper (250).

[0180] In order for the stopper (250) and the second tray (400) to be in close contact with each other, the stopper (250) and the second tray (400) may be made of different materials. For example, the stopper (250) may be made of a metal material or a plastic material, and the second tray (400) may be made of a flexible material. As another example, the stopper (250) may be made of a flexible material, and the second tray (400) may be made of a metal material or a plastic material.

[0181] According to this configuration, the second tray (400) can move slightly further than the point where it starts to contact the stopper (250) by the driving unit (510), and in this process, the adhesion between the first tray (300) and the second tray (400) can be improved. As a result, the complete formation of the cell (360) can be achieved.

[0182] The bracket (220) may include a fourth wall (224) to which a pusher (540) is coupled. The fourth wall (224) may extend in one direction (e.g., downward) from one end (e.g., rear end) of the first wall (221) and may form a wall of one side (e.g., rear) of the bracket (220).

[0183] The ice maker (200) may include a first tray assembly and a second tray assembly. The bracket (220) may define at least a portion of a space that accommodates the first tray assembly and the second tray assembly.

[0184] The bracket (220) may be arranged, for example, on one side wall (e.g., the upper wall) of the freezer (32). A water supply unit (240) may be arranged on the bracket (220). The water supply unit (240) may guide water supplied from one side (e.g., the upper side) to the other side (e.g., the lower side) of the water supply unit (240). A water supply pipe (not shown) for supplying water may be arranged on one side (e.g., the upper side) of the water supply unit (240).

[0185] Since the above water supply unit (240) is positioned lower than the above water supply pipe, water is guided in one direction (e.g., downward) without splashing up to the above water supply unit (240), and even if water is moved in one direction (e.g., downward) due to the lowered height, the amount of splashing can be reduced.

[0186] The above water supply unit (240) may be supported by a bracket (220). The above water supply unit (240) may include a hook (248) that is coupled to the bracket (220). For example, the hook (248) may be hooked to a second part (223b) of the bracket (220).

[0187] The above ice maker (200) may include a cell (see 360 ​​in FIG. 7), which is a space where water changes into ice due to cold.

[0188] The first tray (300) may form at least a portion of the cell (360). The second tray (400) may form another portion of the cell (360). The cell (360) may include a first cell formed by the first tray (300) and a second cell formed by the second tray (400).

[0189] The first tray (300) can be coupled to a bracket (220). The second tray (400) can be positioned to be relatively movable with respect to the first tray (300). The second tray (400) can move linearly or rotate.

[0190] During the ice-making process, the second tray (400) moves relative to the first tray (300), so that the first tray (300) and the second tray (400) can come into contact. When the first tray (300) and the second tray (400) come into contact, the cell (360) can be defined.

[0191] After the ice making is completed, the second tray (400) may move relative to the first tray (300) during the ice removal process, so that the second tray (400) may be separated from the first tray (300).

[0192] In this embodiment, the first tray (300) and the second tray (400) may be arranged in one direction (e.g., up and down) while forming the cell (360). The first tray (300) may be referred to as an upper tray, and the second tray (400) may be referred to as a lower tray.

[0193] A plurality of cells (360) can be defined by the first tray (300) and the second tray (400). For example, the plurality of cells (360) can include three cells (360).

[0194] When water is supplied to the cell (360) and the water is cooled by cold, ice having a shape identical to or similar to that of the cell (360) can be created. For example, the cell (360) can be formed in a spherical shape or a shape similar to a sphere. Of course, the cell (360) can also be formed in a rectangular parallelepiped shape or a polygonal shape.

[0195] The first tray (300) may include a plurality of tray parts (300a, 300b, 300c). The number of the plurality of tray parts (300a, 300b, 300c) may correspond to the number of the plurality of cells (360).

[0196] Each tray part can form at least a portion of one cell. Based on the total surface area of ​​one cell (360), the surface area of ​​a portion of the cell formed by each tray part can be smaller than the surface area of ​​another portion of the cell formed by the second tray (400).

[0197] The second tray case may include, for example, a second tray cover (480) and a second tray supporter (450). The second tray cover (480) and the second tray supporter (450) may be manufactured as separate components and then combined. For example, the second tray (400), the second tray supporter (450), and the second tray cover (480) may be combined by a fastening member (457).

[0198] At least a portion of the second tray cover (480) may be positioned on one side (e.g., the upper side) of the second tray (400). The second tray cover (480) may include a cover wall (481) forming an opening (482). The cover wall (481) may be positioned on one side (e.g., the upper side) of the first extension wall (420, see FIG. 10) of the second tray (400).

[0199] A contact protrusion (428) that comes into contact with the second tray cover (480) may be provided on the first extension wall (420). The contact protrusion (428) may extend in one direction (for example, upward) from the first extension wall (420). An insertion hole (481a) into which the contact protrusion (428) is inserted may be formed on the cover wall (481) of the second tray cover (480). The contact protrusion (428) may come into contact with the stopper (250). In the process of the second tray (400) moving to the ice-making position, the contact protrusion (428) is pressed by the stopper (250), so that the adhesion between the first and second trays (300, 400) may be improved.

[0200] The above opening (482) may be formed so that at least a portion of the second tray cover (480) passes through it so that at least a portion of the second tray (400) passes through it. The opening (482) may be formed to have a predetermined curvature corresponding to the shape of the outer circumferential surface of the cell (360). The opening (482) may be configured to have an area larger than the cross-sectional area of ​​a plurality of second cells of the second tray (400) so that the plurality of second cells may pass through it.

[0201] The second tray cover (480) may include a cover fastening portion (485) protruding in one direction (e.g., downward) from the cover wall (481). A plurality of the cover fastening portions (485) are provided along the perimeter of one side (e.g., the bottom side) of the cover wall (481), and may be coupled to at least one of the fastening hole (425, see FIG. 10) of the second tray (400) and the supporter fastening portion (456) of the second tray supporter (450). In a state where the cover fastening portion (485) is coupled to the fastening hole (425) and the supporter fastening portion (456), the fastening member (457) may be fastened to one side (e.g., the lower side) of the second tray supporter (450).

[0202] At least a portion of the second tray supporter (450) may be positioned on one side (e.g., the lower side) of the second tray (400). The second tray supporter (450) may support the second tray (400) from the lower side of the second tray (400). For example, at least a portion of a wall forming a second cell of the second tray (400) may be supported by the second tray supporter (450).

[0203] The second tray (400) may include a peripheral wall (430, see FIG. 10) that surrounds a portion of the first tray (300) while in contact with the first tray (300).

[0204] The ice maker (200) may include a driving unit (510) that provides driving force. The driving unit (510) may include a driving motor. By receiving the driving force of the driving unit (510), the second tray (400) may move relative to the first tray (300).

[0205] The second tray supporter (450) may include two extension parts (455) in which through holes (455a) are formed. The two extension parts (455) may be provided on both sides of the second tray supporter (450).

[0206] The ice maker (200) may include a shaft (520) that passes through the through hole (455a). The shaft (520) extends between the two extension parts (455) and may rotate by receiving power from the driving part (510).

[0207] The second tray supporter (450) may include two first walls (451) forming two side surfaces. The two extensions (455) may be provided at one end (e.g., the rear end) of the first wall (451), respectively.

[0208] The second tray supporter (450) may include a second wall (452) connecting the other ends (e.g., front ends) of the two first walls (451). The second wall (452) may form one side (e.g., front end) of the second tray supporter (450).

[0209] The second tray supporter (450) may include a third wall (453) forming the other surface (e.g., the upper surface) of the second tray supporter (450). The first extension wall (420, see FIG. 10) of the second tray (400) may be mounted on the third wall (453). A joining portion (459) to which a first edge (422a, see FIG. 11) of the second tray (400) is joined may be formed on the third wall (453). The joining portion (459) may include a through hole into which the first edge (422a) is inserted.

[0210] An insertion portion (458a) may be formed in the third wall (453) to which the second edge (422b, see FIG. 11) of the second tray (400) is coupled. The insertion portion (458a) may include a groove recessed from the third wall (453) to allow the second edge (422b) to be inserted.

[0211] The second tray supporter (450) may include at least one of a fourth wall (454) and a fifth wall (458) extending in one direction (e.g., downward) from the third wall (453). The fourth wall (454) may be one wall (e.g., a rear wall) of the second tray supporter (450), and the fifth wall (458) may be understood as another wall (e.g., an inner wall) spaced forward from the fourth wall (454). The insertion portion (458a) may be a space formed between the fourth wall (454) and the fifth wall (458).

[0212] The second tray supporter (450) may be formed with a receiving space (453a) that is sunken in one direction (e.g., downward) from the third wall (453). At least a portion of the second tray (400) may be positioned in the receiving space (453a). For example, a portion of the second cell of the second tray (400) may be accommodated in the receiving space (453a).

[0213] In the above-mentioned receiving space (453a), a transparent ice heater (490) for applying heat to the second tray (400) during the ice-making process may be placed. The transparent ice heater (490) may be placed adjacent to or in contact with one side (e.g., the lower side) of the second tray (400) so as to supply heat to a portion (e.g., the lower side) of the second tray (400). The transparent ice heater (490) may be, for example, a wire-type heater.

[0214] The second tray supporter (450) may include a fourth wall (454) forming one side (e.g., a rear side) of the second tray supporter (450). The outer surface of the second tray supporter (450) may be defined by the first to fourth walls (451, 452, 453, 454).

[0215] A holder (530) may be provided at both ends of the shaft (440). The holder (530) may include a first holder (531) connecting the shaft (520) and the driving unit (510). The first holder (531) may be coupled to one end of the shaft (520) and may be positioned between the extension (455) and the driving unit (510).

[0216] The first holder (531) is configured to have an open side end portion so that the shaft (520) passes through it, and the shaft (520) can be coupled to the driving unit (510) by passing through the first holder (531).

[0217] The holder (530) may include a second holder (532) coupled to the other end of the shaft (520). The second holder (532) is positioned on the outside of the extension (455), and the shaft (520) may pass through the through hole (455a) and be supported by the second holder (532).

[0218] The above driving unit (510) may include a motor and a plurality of gears. A full ice detection lever (550) may be connected to the driving unit (510). The full ice detection lever (550) is moved by power provided from the driving unit (510), and may detect ice stored in the ice bin (60) during the movement process.

[0219] The above driving unit (510) may include a cam that moves or rotates by receiving power from the motor. The ice maker (200) may include a sensor that detects the movement or rotation of the cam.

[0220] The refrigerator controller can determine the position of the second tray (400) (or second tray assembly) based on the type and pattern of the signal output from the sensor. That is, since the second tray (400) and the cam are moved by the motor, the position of the second tray (400) can be indirectly determined based on the detection signal of the magnet provided on the cam. For example, the water supply position, ice-making position, and ice separation position, which will be described later, can be distinguished and determined based on the signal output from the sensor.

[0221] The above ice maker (200) may further include a pusher (540). The pusher (540) may be placed on the bracket (220), for example.

[0222] The pusher (540) may include a coupling plate (542) coupled to the bracket (220) and at least one pushing bar (544) extending from the coupling plate (542). For example, the pusher (540) may include a number of pushing bars (544) equal to the number of cells (360), but is not limited thereto.

[0223] The pushing bar (544) can push out ice located in the cell (360). For example, the pushing bar (544) can penetrate the second tray supporter (450) and come into contact with the second tray (400) forming the cell (360), and pressurize the second tray (400) that is in contact.

[0224] The second tray (400) may be formed of a non-metallic material. For example, the second tray (400) may be formed of a flexible or malleable material that can change shape when pressed by the pusher (540). Although not limited, the second tray (400) may be formed of a silicone material, for example.

[0225] In the process of pressurizing the second tray (400) by the pusher (540), the second tray (400) is deformed and the pressing force of the pusher (540) is transmitted to the ice, and the ice and the second tray (400) can be separated by the pressing force of the pusher (540).

[0226] When the second tray (400) is formed of a non-metallic material and a flexible or malleable material, the bonding or adhesive force between the ice and the second tray (400) may be reduced, so that the ice may be easily separated from the second tray (400).

[0227] When the second tray (400) is formed of a non-metallic material and a flexible or malleable material, after the second tray (400) is deformed by the pusher (540), when the pressing force of the pusher (540) is removed, the second tray (400) can be easily restored to its original shape.

[0228] For example, the first tray (300) may be formed of a metal material or a plastic material. In this case, the bonding or adhesive force per unit area between the first tray (300) and the ice may be relatively strong. However, since the first cell formed within the first tray (300) has a small surface area (or ice contact area), ice separation can be easily achieved.

[0229] As another example, the first tray (300) may be formed of a non-metallic material. In this case, the bonding or adhesive force per unit area between the first tray (300) and the ice may be relatively weak. Accordingly, ice separation may be facilitated. Although not limited, the first tray (300) may be formed of, for example, a silicone material.

[0230] The first tray (300) and the second tray (400) may be formed of the same material. In this case, the hardness of the first tray (300) and the hardness of the second tray (400) may be different so that sealing performance is maintained at the contact area between the first tray (300) and the second tray (400).

[0231] In the present embodiment, since the second tray (400) is pressed by the pusher (540) and is deformed, the hardness of the second tray (400) may be lower than the hardness of the first tray (300) so that the shape of the second tray (400) can be easily deformed.

[0232] FIG. 7 is a cross-sectional view taken along line 7-7 of FIG. 4, FIG. 8 is a bottom perspective view of an ice maker with a tray assembly removed according to the first embodiment of the present invention, and FIG. 9 is a bottom perspective view showing the configuration of a bracket according to the first embodiment of the present invention.

[0233] Referring to FIGS. 7 to 9, a bracket (220) according to a first embodiment of the present invention may include a first wall (221) forming one surface (e.g., an upper surface) of the bracket (220). The bracket (220) may include two second walls (222) extending in one direction (e.g., downward) from both sides of the first wall (221). The bracket (220) may include a fourth wall (224) connecting one end (e.g., a rear end) of the two second walls (222). An internal space of the bracket (220) defined by the first wall (221), the second wall (222), and the fourth wall (224) may be defined.

[0234] The internal space of the bracket (220) may include a first space (220a) where the driving unit (510) is positioned and a second space (220b) where the tray assembly is positioned. The bracket (220) may include a protrusion (220c) that protrudes in one direction (e.g., forward) from the fourth wall (224) to divide the first space (220a) and the second space (220b). By the protrusion (220c), at least a portion of the first space (220a) may be formed in the other direction (e.g., rear) of the second space (220b).

[0235] A shaft coupler (237) supporting both ends of the shaft (520) may be provided in the internal space of the bracket (220). For example, the shaft coupler (237) may be configured to protrude from one surface (e.g., the bottom surface) of the first wall (221).

[0236] The fourth wall (224) above is coupled with a coupling plate (542) of a pusher (540), and a pushing bar (544) can extend in one direction (e.g., forward) from the coupling plate (542).

[0237] The first tray (300) may be coupled to a bracket (220). The bracket (220) may include a coupling wall (221a) coupled to the first tray (300). The coupling wall (221a) may be formed to be stepped in one direction (e.g., downward) from the first wall (221) forming one surface (e.g., upper surface) of the bracket (220). The distance between the coupling wall (221a) and the first tray (300) may be shorter than the distance between the first wall (221) and the first tray (300).

[0238] The first tray (300) may be fastened to the connecting wall (221a) by a predetermined fastening member. A fastening groove (325) into which the fastening member is fastened may be formed in a portion (e.g., the upper portion) of the first tray (300).

[0239] The bracket (220) may include a support wall (229) for supporting the first tray (300). The support wall (229) may extend in one direction (for example, downward) from the joining wall (221a). The support wall (229) may be configured to support the guide wall (320) of the first tray (300). The support wall (229) may have a bent or rounded shape corresponding to the shape of the guide wall (320).

[0240] The above support wall (229) may be in contact with the above guide wall (320). The above support wall (229) may extend along the bent or rounded guide wall (320). The above support wall (229) may be arranged to surround at least a portion of the above guide wall (320).

[0241] The first tray (300) includes a plurality of tray parts (300a, 300b, 300c), and the plurality of tray parts can be arranged spaced apart in one direction (e.g., horizontal direction).

[0242] The first tray (300) may form a through hole (323) that allows air to escape to the outside of the cell at the ice-making position. The through hole (323) may be formed so that at least a portion of the first tray (300) passes through the through hole. The through hole (323) may be formed in a portion (e.g., the upper portion) of the first tray (300).

[0243] A water supply unit (240) may be coupled to a portion (e.g., an upper portion) of the above bracket (220). A storage space (241) for storing fluid may be formed inside the water supply unit (240). A first portion of the water supply unit (240) may be located on the outside of the tray assembly and supported by the bracket (220).

[0244] The second part of the above-mentioned water supply unit (240) is located inside the tray assembly to supply fluid to the cell (360). When the fluid is supplied, the tray assembly may be in the water supply position.

[0245] The above water supply unit (240) may be provided with a discharge unit (243) for discharging fluid. The discharge unit (243) may be formed at one end (e.g., the lower end) of the water supply unit (240). The discharge unit (243) may include a discharge hole for discharging fluid.

[0246] The above water supply unit (240) may be supported on the tray assembly. The portion where the water supply unit (240) is supported on the tray assembly may form a boundary portion between the first portion and the second portion of the water supply unit (240).

[0247] At the ice-making position of the tray assembly, the first tray (300) and the second tray (400) can contact each other to form cells (360) corresponding to the desired ice shape.

[0248] The inner surface of the cell (360) may include a first cell surface (310a) formed by the first tray (300) and a second cell surface (410a) formed by the second tray (400). The first cell surface (310a) and the second cell surface (410a) may extend in the circumferential direction to form the cell (360).

[0249] Based on the center (C1) of the cell (360), the diameter (D1) of the cell (360) can be formed to be larger than the diameter (D2) of the portion where the first cell surface (310a) and the second cell surface (410a) contact each other.

[0250] The part where the first cell surface (310a) and the second cell surface (410a) come into contact can be understood as the boundary between the first tray (300) and the second tray (400).

[0251] The above diameter (D2) may form the diameter of the opening (313) of the first tray (300). The opening (313) of the first tray (300) may form an end of the first tray (300). The above diameter (D2) may form the diameter of the opening (413) of the second tray (400). The opening (413) of the second tray (400) may form one end (e.g., an upper end) of the second tray (400).

[0252] From one perspective, the first tray (300) may be understood to function as a cover member covering the opening of the second tray (400).

[0253] With respect to the center (C1) of the cell (360), the circumferential length of the first cell surface (310a) may be formed to be smaller than the circumferential length of the second cell surface (410a). With respect to the center (C1) of the cell (360), the central angle formed by the first cell surface (310a) may be formed to be smaller than the central angle formed by the second cell surface (410a).

[0254] When defining the horizontal (X-axis) diameter (D1) and vertical (Z-axis) diameter (D3) of the above cell (360), the diameter (D1) and the diameter (D3) are formed to be the same so that a spherical cell can be implemented.

[0255] As another example, the diameter (D3) may be formed to be larger than the diameter (D1) to implement an elliptical cell having a major axis in one direction (e.g., up and down). By forming the cell in an elliptical shape, the diameter (D1) perpendicular to the moving direction (Z-axis direction) may be formed to be smaller than the diameter (D3) corresponding to the moving direction, thereby reducing the moving torque.

[0256] FIG. 10 is a perspective view showing the configuration of a tray assembly according to a first embodiment of the present invention, and FIG. 11 is a cross-sectional view taken along line 11-11 of FIG. 10.

[0257] Referring to FIGS. 10 and 11, the tray assembly according to the first embodiment of the present invention may include a first tray (300) and a second tray (400).

[0258] The first tray (300) may define a first cell (310b) that is a part of a cell (360). The first tray (300) may include a first tray wall (310) that forms a part of the cell (360). The first tray wall (310) may define the first cell (310b). The inner surface of the first tray wall (310) forms a first cell surface (310a), and the first cell surface (310a) may be understood to define an outer surface of the first cell (310b).

[0259] The first tray (300) may include a plurality of tray parts (300a, 300b, 300c) each defining a first cell (310b). The plurality of first cells (310b) may be arranged in a row, for example. Referring to FIG. 10, the plurality of first cells (310b) may be arranged in one direction (e.g., in the X-axis direction).

[0260] The first tray (300) may include a first opening (313). The first opening (313) forms an end of the first tray (300) and may be in contact with the second tray (400).

[0261] The first tray (300) may include a guide wall (320) extending from the first tray wall (310). The guide wall (320) may extend in a direction toward the bracket (220). For example, the guide wall (320) may extend in one direction (e.g., upward) from the first tray wall (310).

[0262] The above guide wall (320) can form a through hole (323). The through hole (323) can be formed to penetrate from the inner surface of the first tray wall (310), i.e., the first cell surface (310a), to the outer surface of the guide wall (320).

[0263] The first end of the above-mentioned through hole (323), i.e., the inlet-side end, may be connected to the first cell surface (310a). The second end of the above-mentioned through hole (323), i.e., the outlet-side end, may be connected to the upper end of the above-mentioned guide wall (320). During the ice-making process, air bubbles in the cell (360) are discharged through the through hole (323), thereby preventing an air pocket phenomenon in the cell (360).

[0264] The above guide wall (320) may include a drainage portion (324) that is connected to the through hole (323) and penetrates one side (e.g., the front) of the guide wall (320). The drainage portion (324) may direct the fluid discharged through the through hole (323) to the outside of the first tray (300) to prevent ice from forming in the through hole (323). For example, the drainage portion (324) may include a drainage hole.

[0265] The guide wall (320) may be formed with a fastening portion (325) to which a fastening member is coupled. The fastening portion (325) may include a fastening groove that is recessed from one end (e.g., the upper end) of the guide wall (320). The fastening member may be coupled to the bracket (220) and / or may be coupled to the fastening portion (325) to couple the first tray (300) to the bracket (220).

[0266] The second tray (400) includes a second tray wall (410) forming another part of the cell (360), and the second tray wall (410) can define a second cell (410b). The inner surface of the second tray wall (410) forms a second cell surface (410a), and the second cell surface (410a) can be understood to define an outer surface of the second cell (410b).

[0267] The second tray (400) may define, for example, a plurality of second cells (410b). The plurality of second cells (410b) may be arranged, for example, in the X-axis direction. To define the plurality of second cells (410b), a plurality of second tray walls (410) may be provided, and each second tray wall (410) may be arranged in a uniform manner (for example, in the X-axis direction).

[0268] The second tray (400) may include a second opening (413). The second opening (413) forms one end (e.g., the upper end) of the second tray (300) and may be in contact with the first tray (300).

[0269] The second tray (400) may include a first extension wall (420) extending in a first direction (e.g., horizontally) toward the outside of the second tray wall (410). The first extension wall (420) may be mounted on the third wall (453) of the second tray supporter (450).

[0270] A plurality of second tray walls (410) defining the plurality of second cells (410b) are provided, and the first extension wall (420) may extend outside the plurality of second tray walls (410). For example, the first extension wall (420) may include a square-shaped flat wall.

[0271] The first extension wall (420) may be formed at a location where an extension line in a first direction (e.g., horizontal direction) that bisects the height of the cell (360) in a second direction (e.g., vertical direction) passes. When defining the center (C1) of the cell (360), an extension line in the first direction (e.g., horizontal direction) that passes through the center (C1) may pass through the first extension wall (420).

[0272] A fastening hole (425) may be formed on the edge of the first extension wall (420) to which the cover fastening part (485) of the second tray cover (480) is coupled. A plurality of fastening holes (425) may be formed.

[0273] The second tray wall (410) may include a first part (411) positioned on one side (e.g., the lower side) of the first extension wall (420) based on the first extension wall (420). The first part (411) may form an area of ​​a part (e.g., the lower side) of the cell (360).

[0274] One end (e.g., the lower end) of the first part (411) forms a recessed portion (401), and as water expands during the ice-making process, the recessed portion (401) can be deformed (expanded) into the shape of a desired cell.

[0275] The above first part (411) can be accommodated in the accommodation space (453a) of the second tray supporter (450) and supported by the second tray supporter (450).

[0276] The second tray wall (410) may include a second part (412) positioned on one side (e.g., upper side) of the first extension wall (420) based on the first extension wall (420). The second part (412) may form a part of a portion (e.g., upper portion) of the cell (360).

[0277] One end (e.g., the upper end) of the second part (412) may form the opening (413). The second part (412) may be understood as a portion that is not accommodated in the accommodation space (453a).

[0278] By means of the second part (412), the second tray (400) can extend to a position higher than the center (C1) of the cell (360). With this configuration, the size of the portion where ice is deformed into an undesirable shape due to water leakage between the first tray (300) and the second tray (400) can be reduced. In addition, by reducing the size of the first tray (300), the degree of ice adhesion to the first tray (300) can be reduced.

[0279] The second tray wall (410) may include a plurality of portions having different degrees of internal deformation. The plurality of portions may include a first portion (412a) having a first degree of internal deformation and a second portion (412b) having a second degree of internal deformation. The degree of internal deformation of the first portion (412a) may be greater than the degree of internal deformation of the second portion (412b).

[0280] For example, the first thickness (t1) of the first portion (412a) may be greater than the second thickness (t2) of the second portion (412b). The first portion (412a) may be formed on the second portion (412) of the second tray wall (410). The second portion (412b) may be formed on the second portion (412) of the second tray wall (410).

[0281] Since the first part (411) of the second tray wall (410) is supported by the second tray supporter (450), a desired ice shape can be implemented during the process of fluid expansion during ice making. However, the second part (412) of the second tray wall (410) may protrude to one side (e.g., the upper side) of the second tray supporter (450) and may not be directly supported by the second tray supporter (450). Therefore, it may not be easy to implement a desired ice shape during the process of fluid expansion during ice making.

[0282] To solve this problem, the first part (412a) and the second part (412b) can be configured so that the part of the second part (412) adjacent to the first extension wall (420) undergoes relatively little deformation, and the part far from the first extension wall (420) undergoes relatively much deformation.

[0283] The first portion (412a) forms a portion adjacent to the first extension wall (420) and may have a relatively large first thickness (t1). The portion adjacent to the first extension wall (420) may be understood as a portion adjacent to the center (C1) of the cell (360) forming the diameter (D1) of the ice. In other words, the first portion (412a) may be understood as a portion adjacent to an extension line passing through the center (C1) of the cell (360) in a first direction (e.g., horizontal direction).

[0284] The second portion (412b) forms a portion that is relatively far from the first extension wall (420) and may have a second thickness (t2) that is relatively small. The portion that is relatively far from the first extension wall (420) may be understood as a portion that is far from the center (C1) of the cell (360) that forms the diameter (D1) of the ice.

[0285] The second part (412b) may be understood as a part adjacent to the opening (413) of the second tray (400). In this way, a part of the second part (412) close to the center of the ice among the cells (360) may have a large degree of internal deformation or a large thickness, thereby reducing the amount of deformation during the ice separation process.

[0286] Meanwhile, other parts of the second part (412) farther from the center of the ice among the cells (360) can be made to have a small degree of deformation or a small thickness, thereby increasing the deformation amount during the ice separation process. With this configuration, when the second opening (413) of the second tray (400) expands during the ice separation process and ice is discharged, the deformation amount in the part adjacent to the second opening (413) increases, making ice separation easier.

[0287] The second part (412) may have a second thickness (t2) whose size may increase from the first extension wall (420) toward the second opening (413). For example, a plurality of first parts (412a) having a first thickness (t1) may be provided spaced apart from each other in the circumferential direction, and a second part (412b) may be provided between the plurality of first parts (412a). The area of ​​the second part (412b) may increase in one direction (for example, upward) toward the second opening (413). With this configuration, the expansion rate of the second part (412) may be evenly maintained in the circumferential direction during the ice-making process.

[0288] The second tray (400) may include a peripheral wall (430) extending along the perimeter of one end (e.g., the upper end) of the second tray wall (410). For example, the peripheral wall (430) may be formed integrally with the second tray wall (410) and may extend in one direction (e.g., upward) from one end (e.g., the upper end) of the second tray wall (410).

[0289] As another example, the peripheral wall (430) may be formed separately from the second tray wall (410) and positioned around one end (e.g., the upper end) of the second tray wall (410). In this case, the peripheral wall (430) may be in contact with the second tray wall (410) or may be spaced apart from the second tray wall (410). In either case, the peripheral wall (430) may surround at least a portion of the first tray (300).

[0290] If the second tray (400) includes the peripheral wall (430), the second tray (400) can surround the first tray (300). The space between the peripheral wall (430) and the first tray (300) can form a fluid flow space when water is supplied from the water supply unit (240). The space between the peripheral wall (430) and the first tray (300) can form a storage space for the discharged fluid when the fluid is discharged through the drain unit (324) of the first tray (300).

[0291] The above-mentioned peripheral wall (430) may include a second extension wall (431) extending in one direction (e.g., in the vertical direction) along the perimeter of one end (e.g., the upper end) of the second part (412). The second extension wall (431) may be arranged to surround at least a portion of the first tray (300).

[0292] A portion of the inner surface of the second extension wall (431) may contact the first tray (300). At least a portion of the outer surface of the first tray wall (310) may form a first contact surface (312a) that contacts the second extension wall (431).

[0293] The second extension wall (431) may extend in an inclined or rounded manner in a direction away from the first tray (300). The inclined or rounded portion may form a contact surface (431a) that contacts the first contact surface (312a). The contact surface (431a) may extend upward in an inclined manner by a set angle (θ) with respect to one direction (e.g., the X-axis direction). That is, the contact surface (431a) may form an inclined contact surface.

[0294] The height of the portion where the first contact surface (312a) of the first tray (300) and the second extension wall (431) come into contact with each other based on a point of the first tray (300) or the second extension wall (431) may be formed at a position lower than the height of the drainage portion (324) of the first tray (300). Accordingly, the fluid discharged through the drainage portion (324) can be easily stored in the space between the first tray (300) and the peripheral wall (430).

[0295] The second extension wall (431) can reduce the heat transferred from the transparent ice heater (490) to the second tray (400) from being transferred to the first cell (310b) formed by the first tray (300). That is, the second extension wall (431) serves to move the heat conduction path away from the first cell (310b).

[0296] The second extension wall (431) may extend to a position higher than the drainage portion (324) of the first tray (310). That is, one end (431b) of the second extension wall (431) may be formed at a position higher than the drainage portion (324). With this configuration, water discharged through the drainage portion (324) may be prevented from leaking out of the second tray (400) beyond the second extension wall (431).

[0297] The second tray (400) may include a separation wall (432) provided between the plurality of second extension walls (431). The separation wall (432) may connect one end (e.g., the rear end) of the plurality of second extension walls (431). By the separation wall (432), the plurality of second extension walls (431) may be spaced apart from each other.

[0298] The second tray (400) may include a plurality of tray parts defining a plurality of cells. For example, as illustrated in FIG. 10, the plurality of tray parts may include a first tray part defining a first cell, a second tray part defining a second cell, and a third tray part defining a third cell.

[0299] The above-described separating wall (432) may be provided in multiple numbers. For example, the separating wall (432) may include a first separating wall (432a) provided between the second extension wall (431) of the first tray part and the second extension wall (431) of the second tray part. The separating wall (432) may include a second separating wall (432b) provided between the first extension wall (431) of the second tray part and the second extension wall (431) of the third tray part.

[0300] The second tray (400) may include a third extension wall (433) disposed on a portion (e.g., a rear portion) of the first tray (300). For example, the second extension wall (431) may be disposed on the other portion (e.g., a front portion) of the first tray (300), and the third extension wall (433) may be provided on the opposite side of the second extension wall (431).

[0301] At least a portion of the third extension wall (433) may guide the flow or form a flow path when water is supplied from the water supply unit (240) to the cell (360). The third extension wall (433) may extend in one direction (e.g., upward) from the second tray wall (410).

[0302] The third extension wall (433) may be formed in steps. For example, the third extension wall (433) may include a first part (433a) extending in one direction (e.g., upward) from the opening (413) of the second tray wall (410) forming the opening (413).

[0303] The first part (433a) may form a contact surface that comes into contact with the first tray (300). The first tray (300) may form a second contact surface (312b) that comes into contact with the first part (433a). The second contact surface (312b) may form a contact surface in one direction (e.g., in the up-down direction).

[0304] The third extension wall (433) may include a second part (433b) extending in one direction (e.g., upward) from the first part (433a). The second part (433b) may extend in an inclined direction away from the first tray (300). The third extension wall (433) may include a third part (433c) extending in one direction (e.g., upward) from the second part (433b).

[0305] The first tray (300) may include a guide surface (311, see FIG. 12) that comes into contact with the fluid during the water supply process. The fluid discharged from the water supply unit (240) may fall onto the guide surface (311).

[0306] The first tray (300) may include a water supply guide (327) provided on at least one side of the guide surface (311). The water supply guide (327) protrudes from the first tray wall (310) of the first tray (300) and may prevent fluid from leaking out of the guide surface (311). For example, the water supply guide (327) may include a protruding rib.

[0307] The above water supply guide (327) may protrude from at least one side of the guide surface (311). The guide surface (311) may be understood as a surface defined between the water supply guides (327) on both sides of the outer surface of the first tray wall (310). The water supply guide (327) may extend from the guide wall (320) in a direction toward the third extension wall (433). A space in which a fluid is stored or a space in which a fluid flows may be formed between the third extension wall (433) and the water supply guide (327).

[0308] The second tray (400) may include a connecting wall (434) connecting the second extension wall (431) and the third extension wall (433). The connecting wall (434) may extend in a rounded or inclined manner in one direction (e.g., rearward) from the second extension wall (431) toward the third extension wall (433). The connecting wall (434) may be provided on both sides of the second tray (400).

[0309] The above second extension wall (431), separation wall (432), connection wall (434), and third extension wall (433) can define a space where the first tray (300) is located. The space can form a space where fluid flows or is stored during the water supply process.

[0310] The second tray (400) may include a reinforcing rib (436) to reinforce the strength of the second tray (400). The reinforcing rib (436) may be provided on the second tray wall (410) or the peripheral wall (430).

[0311] The second tray (400) may be made of a flexible material. The reinforcing rib (436) may prevent undesirable deformation when water is supplied to the second tray (400) or when the second tray (400) is moved to the ice-making position (or ice-making position).

[0312] For example, the reinforcing rib (436) may be provided on at least one of the second extension wall (431) and the separation wall (432). The reinforcing rib (436) may be arranged on the surface of the at least one wall so as to extend in one direction (e.g., in the vertical direction). The reinforcing rib (436) may be provided at a relatively weak position in the second tray (400) to prevent undesired expansion or deformation from occurring during the ice-making process. For example, at least a portion of the reinforcing rib (436) may be arranged on the second tray wall (410), particularly, the second portion (412b) having the second thickness (t2) among the second part (412).

[0313] FIG. 12 is a perspective view showing the configuration of a first tray according to a first embodiment of the present invention, FIG. 13 is a perspective view showing the arrangement of a water supply unit and a first tray according to a first embodiment of the present invention, FIG. 14 is a plan view of FIG. 13, FIG. 15 is a perspective view showing the arrangement of a water supply unit and a tray assembly when water is supplied through a tray assembly according to the first embodiment of the present invention, FIG. 16 is a cross-sectional view taken along line 16-16 of FIG. 15, and FIG. 17 is a plan view showing the arrangement of a water supply unit and a tray assembly when water is supplied through a tray assembly according to the first embodiment of the present invention.

[0314] Referring to FIGS. 12 to 17, the first tray (300) according to the first embodiment of the present invention may include a plurality of tray parts (300a, 300b, 300c). The plurality of tray parts (300a, 300b, 300c) may be composed of separate parts.

[0315] For example, the plurality of tray parts (300a, 300b, 300c) may include a first tray part (300a) provided in the central portion and second and third tray parts (300b, 300c) provided on both sides of the first tray part (300a).

[0316] The second and third tray parts (300b, 300c) may have the same shape. The first tray part (300a) may have a different shape from the second and third tray parts (300b, 300c).

[0317] The first tray (300) may include a first tray wall (310) forming a first cell (310b). The inner circumferential surface of the first tray wall (310) may form a first cell surface (310a). For example, the first cell surface (310a) may include a rounded surface to form a portion (e.g., an upper portion) of a cell (360).

[0318] The first tray (300) may include a guide wall (320) extending or protruding from the first tray wall (300). The guide wall (320) may extend in one direction (e.g., upward) from the first tray wall (310) and be fastened to the bracket (220).

[0319] The above guide wall (320) may include a through hole (323) through which air of the cell (360) is discharged during the ice-making process. The through hole (323) may be formed to penetrate from one end (e.g., the lower end) of the guide wall (320) to the other end (e.g., the upper end). The through hole (323) and the fastening groove (325) may be arranged in one direction (e.g., the X-axis direction).

[0320] The above guide wall (320) may include a drainage portion (324) that is fluidly connected to the through hole (323) and allows the fluid discharged through the through hole (323) to be drained to the outside of the guide wall (320). The drainage portion (324) may be formed to penetrate from the through hole (323) to one surface (e.g., the front) of the guide wall (320).

[0321] Define the direction. The forward direction of the guide wall (320) can be understood as the direction in which the water supply unit (240) is located based on the guide wall (320). From the perspective of the overall structure of the tray assembly, the forward direction can be understood as the direction in which the water supply unit (240) is located based on the center (C1) of the cell (360), and the rear direction can be understood as the direction in which the shaft (520) is located.

[0322] The first tray (300) may include a guide surface (311) that guides the fluid so that the surface discharged from the drainage portion (324) can flow down the first tray wall (310). The guide surface (311) forms a portion of the outer circumference of the first tray wall (310) and may extend in one direction (for example, forward) from the drainage portion (324). The drainage portion (324) may be formed in each of the first to third tray parts (300a, 300b, 300c).

[0323] The first tray (300) may include a water supply guide (327) that prevents fluid from splashing out of the guide surface (311). The water supply guide (327) may protrude in one direction (e.g., upward) from the first tray wall (310).

[0324] The above water supply guide (327) is provided in multiple numbers, and the multiple water supply guides (327) may be provided on both sides of the drainage unit (324). The multiple water supply guides (327) may include a first water supply guide (327a) provided on one side of the drainage unit (324) and a second water supply guide (327b) provided on the other side of the drainage unit (324). The guide surface (311) may be formed between the first and second water supply guides (327a, 327b).

[0325] The first and second water supply guides (327a, 327b) are provided in the first tray part (300a), and may not be provided in the second and third tray parts (300b, 300c). This may be due to the structural feature that the water supply unit (324) is arranged on one side (e.g., the upper side) of the first tray part (300a).

[0326] The fluid discharged from the above-described water supply unit (324) may fall from one side (e.g., the upper side) of the first tray part (300a) to the guide surface (311) and flow into a plurality of cells (360). Specifically, the fluid may flow in one direction (e.g., downward) from the guide surface (311) and flow into the cell (360), i.e., the central cell, defined by the first tray part (300a). In this process, the first and second water supply guides (327a, 327b) may guide the fluid flowing (e.g., falling) to the guide surface (311) to flow into the central cell defined by the first tray part (300a).

[0327] After the fluid flows into the central cell, the additional fluid can flow in one direction (e.g., left and right) through the third extension wall (433) and flow into the first lateral cell (e.g., left cell) and the second lateral cell (e.g., right cell). The first lateral cell may be a cell (360) defined by the second tray part (300b), and the second lateral cell may be a cell (360) defined by the third tray part (300c).

[0328] The above water supply unit (240) may include a water supply wall (242) forming a storage space (241). The water supply wall (242) includes a wall that is closed in the circumferential direction so as to store fluid, and the wall may include a plurality of walls that extend and are bent in the circumferential direction so as to have a cup shape.

[0329] The above wall may be provided with a hook (248) for connecting the water supply unit (240) to the bracket (220). For example, the hook (248) may be provided on a wall of the water supply unit (240) provided on one side (e.g., the front side) of the water supply unit.

[0330] The above water supply unit (240) may include a discharge unit (243) extending to one side (e.g., downward) of the water supply wall (242). The length of one end (e.g., front end) of the discharge unit (243) may be formed to be longer than the length of the other end (e.g., rear end). That is, the discharge unit (243) may extend downwardly from the other end (rear end) toward one end (front end).

[0331] The first tray wall (310) may extend downward from the center of one end (e.g., the upper end) to the outer circumference of the other end (e.g., the lower end). In response to the shape of the first tray wall (310), the lengths of one end (front end) and the other end (rear end) of the discharge portion (243) may be configured differently, thereby implementing a constant distance between the discharge portion (243) and the first tray wall (310). Accordingly, the phenomenon of water splashing during the water supply process can be prevented.

[0332] For example, the discharge portion (243) may include a first discharge wall (243a) forming a wall of a portion (e.g., a front end) of the discharge portion (243). The discharge portion (243) may include two second discharge walls (243b) forming side walls of the discharge portion (243). The discharge portion (243) may include a third discharge wall (243c) forming a wall of another portion (e.g., a rear end) of the discharge portion (243). The length of the first discharge wall (243a) may be formed to be longer than the length of the third discharge wall (243c).

[0333] The discharge end (243d) of the discharge portion (243) may be formed to be inclined between the first discharge wall (243a) and the third discharge wall (243c).

[0334] The discharge portion (243) may overlap with the guide surface (311) of the first tray (300) in one direction (e.g., in the vertical direction). Accordingly, the fluid discharged from the discharge portion (243) may fall onto the guide surface (311) and flow down along the guide surface (311) to one side (e.g., downward) of the first tray (300).

[0335] At the water supply position of the tray assembly, the second tray (400) may be moved in a direction where the contact with the first tray (300) is partially released and the distance from the first tray (300) increases. For example, the second tray (400) may be moved in a direction where the contact is released while the third extension wall (433) is in contact with the second contact surface (312b).

[0336] The second tray (400) can move (rotate) in the positive direction by a set angle (θ) based on the shaft (520). As the second tray (400) moves, the fluid falling along the guide surface (311) can flow into the central cell among the plurality of cells (360) through the space between the third extension wall (433) and the second contact surface (312b) of the first tray (300).

[0337] The supplied fluid may be first supplied to the central cell, and after filling the interior of the central cell, the fluid may flow into the first and second lateral cells on both sides. After filling the interior of the second tray (400) defining the central cell, the additionally supplied fluid may be supplied (water spread) by branching to the first and second lateral cells along the water supply path (435).

[0338] The above water supply path (435) may be formed on one side (e.g., the upper side) of the second tray wall (410). The above water supply path (435) may be formed between the second extension wall (431) and the third extension wall (433). The above water supply path (435) may be formed in the inner space of the third extension wall (433).

[0339] The above water supply path (435) may be formed in at least a portion of the first to third parts (433a, 433b, 433c) of the third extension wall (433). The above water supply path (435) may include a first water supply path extending from the central cell to the first lateral cell and a second water supply path extending from the central cell to the second lateral cell.

[0340] Figures 18 to 21 are drawings showing ice making, ice removal, and water supply in an ice maker according to a first embodiment of the present invention.

[0341] Fig. 18 is a drawing showing how ice is made in an ice maker according to a first embodiment of the present invention. When ice making is completed at the ice making positions of the first and second tray assemblies, ice (I) is created, and the second tray assembly can be moved to the ice removal position as shown in Fig. 19.

[0342] The direction in which the second tray assembly moves from the ice-making position of Fig. 18 to the ice-breaking position of Fig. 19 may be referred to as forward movement (or forward rotation). On the other hand, the direction in which the second tray assembly moves from the ice-making position of Fig. 19 to the ice-breaking position of Fig. 18 may be referred to as reverse movement (or reverse rotation).

[0343] Fig. 19 shows the position where the ice-breaking begins. When the driving unit (510) is driven forward by a set angle, the contact between the ice and the first tray (300) is separated, and the ice (I) can move to a position on the second tray (400). Since the adhesion force (or contact area) between the ice and the second tray (400) is formed to be large, the adhesion force (or contact area) between the ice and the first tray (300) can be easily separated during the ice-breaking process.

[0344] Additional embodiments may be proposed to facilitate separation of the ice and the first tray (300). For example, in order to reduce the contact area between the ice and the first tray (300), small protrusions may be added to the inner first cell surface (310a) of the first tray (300) to reduce the adhesion area between the ice and the first tray (300). As another example, the material of the first tray (300) may be configured with a flexible or ductile material to reduce ice adhesion. As yet another example, a coating capable of reducing ice adhesion may be provided on the first cell surface (310a). As yet another example, a heat source (heater) may be added to the first tray wall (310) of the first tray (300) to melt the ice surface and reduce ice adhesion.

[0345] Meanwhile, in order to facilitate moving at the location of Fig. 18, the transparent ice heater (490) can be operated and waited for a set time.

[0346] FIG. 20 shows a state in which the second tray assembly in FIG. 19 moves more forward, and the second tray (400) is pressed by the pusher (540) and moves to the maximum pressing position of the pusher (540). As the pusher (540) presses one end (e.g., the lower end) of the second tray (400), ice may begin to separate from the second tray (400).

[0347] In the process of separating the ice from the second tray (400), the second tray (400) may be deformed in a direction in which the diameter of the opening (413) expands. For this purpose, the second tray (400) may be made of, for example, a flexible or malleable material. In this process, the ice may be completely separated from the second tray (400) and stored in the ice bin (60). In order to increase the reliability of the separating operation, the separating operation of FIGS. 19 and 20 may be performed repeatedly a set number of times or more.

[0348] Once the ice-making operation is completed, the second tray assembly can move in the reverse direction and return to the ice-making position as shown in FIG. 18. When the water supply operation starts at the ice-making position, the second tray assembly can move in the forward direction toward the water supply position as shown in FIG. 21. At the water supply position, the material (M) is supplied through the water supply unit (240), and the fluid can be supplied to a plurality of cells (360) (see FIGS. 16 and 17).

[0349] Once the water supply is complete, the second tray assembly can move backward to the ice-making position and perform an ice-making operation. During the ice-making process, cold is supplied to the ice maker and the transparent ice heater (490) operates to produce transparent ice. During ice-making, the transparent heater (490) can be turned off for a set period of time and then left on standby so that ice can be frozen at the bottom of the cell (360).

[0350] Hereinafter, other embodiments of the present invention will be described. Since these other embodiments differ in some configurations from the first embodiment, the description will focus on the differences, and for parts that are identical to those of the first embodiment, the description and drawing references of the first embodiment will be used.

[0351] Figure 22 is an exploded perspective view of an ice maker according to a second embodiment of the present invention.

[0352] Referring to FIG. 22, an ice maker (200a) according to a second embodiment of the present invention may include a first tray (600) forming at least a portion of a cell (360). The ice maker (200a) may include a second tray (400a) forming another portion of the cell (360).

[0353] A plurality of cells (360) can be defined by the first tray (600) and the second tray (400a). For example, the plurality of cells (360) can include three cells (360).

[0354] The first tray (600) may include a plurality of tray parts (600a, 600b, 600c). The number of the plurality of tray parts (600a, 600b, 600c) may correspond to the number of the plurality of cells (360).

[0355] The above ice maker (200a) may include a second tray cover (480a) and a second tray supporter (450a). A second tray (400a) may be placed between the second tray cover (480a) and the second tray supporter (450a).

[0356] At least a portion of the second tray cover (480a) may be positioned on one side (e.g., the upper side) of the second tray (400). The second tray cover (480a) may include a cover wall (481) forming an opening (482). The cover wall (481) may be positioned on one side (e.g., the upper side) of the first extension wall (420) of the second tray (400a). The first extension wall (420) may include a tray protrusion (429) that contacts the second tray cover (480a).

[0357] The second tray cover (480a) may include a projection receiving portion (486) that protrudes in one direction (e.g., upward) from the cover wall (481) to receive the tray projection (429). The tray projection (429) may penetrate the cover wall (481) and be inserted into the projection receiving portion (486).

[0358] The lower surface of the first extension wall (420) may be contacted by a protrusion (562) of a lift (560). When the lift (560) moves further, the protrusion (562) presses the first extension wall (420), and in this process, the tray protrusion (429) or the first extension wall (420) may be deformed.

[0359] For example, the protrusion (562) may be pushed into the interior of the tray protrusion (429) while deforming a portion of the tray protrusion (429) or the first extension wall (420). The lift (560) may be understood as a contact mechanism that moves based on the center of the shaft (520) so that the second tray assembly can be contacted with the first tray (600).

[0360] The second tray cover (480a) may be provided on the cover wall (481) and may include a moving guide (487) that helps move ice during the moving process. The moving guide (487) may be provided on a portion (e.g., a rear portion) of the cover wall (481) and may have a groove (487a) that surrounds at least a portion of the shaft (520).

[0361] The above-mentioned moving guide (487) may be provided in multiple numbers corresponding to the number of cells (360). During the moving process, the moving guide (487) may pressurize the ice remaining on the first tray (600) or the ice remaining in the contact area between the first tray (600) and the second tray (400a) to separate them from the first tray (600).

[0362] At least a portion of the second tray supporter (450a) may be positioned on one side (e.g., the lower side) of the second tray (400a). The second tray supporter (450a) may support the second tray (400a) on one side (e.g., the lower side) of the second tray (400a).

[0363] The above ice maker (200a) may include a heater (490, 495).

[0364] The above heater (490, 495) is disposed in the sunken receiving space (453a, see FIG. 6) of the second tray supporter (450a) and may include a transparent ice heater (490) for applying heat to the second tray (400a) during the ice-making process. The transparent ice heater (490) may be disposed adjacent to or in contact with one side (e.g., the lower side) of the second tray (400a) so as to supply heat to a portion (e.g., the lower side) of the second tray (400a).

[0365] The above heater (490, 495) may include an ice heater (495) that is controlled to be turned on at least for a portion of the time after ice making is completed so that ice can be easily separated from the tray assembly. The ice heater (495) may be positioned adjacent to the first tray (600). The ice heater (600) may be, for example, a wire-type heater.

[0366] The above-mentioned moving heater (495) may be positioned so as to be in contact with the first tray (600) or may be positioned at a predetermined distance from the first tray (600). In either case, the moving heater (495) may supply heat to the first tray (600), and the heat supplied to the first tray (600) may be transferred to the cell (360).

[0367] The above lift (560) can be coupled to the shaft (520) or the holder (531, 532). Accordingly, the lift (560) can move together with the shaft (520) and the holder (531, 532).

[0368] The above lift (560) may be provided on at least one side of the shaft (520). For example, a plurality of lifts (560) may be provided on both sides of the shaft (520). The plurality of lifts (560) may be located on the outer sides of both side walls of the second tray supporter (450a).

[0369] The above lift (560) may include a support bar (561) that supports a portion (e.g., a lower portion) of the second tray (400a). The support bar (561) may be arranged on the outer side of the side wall of the second tray supporter (450a).

[0370] The above lift (560) may include an extension (563) coupled to the holder (531, 532). The extension (563) may form a through hole (564) into which the holder (531, 532) is inserted.

[0371] The above lift (560) may include a protrusion (562) protruding from the support bar (561) in a direction toward the second tray (400a). The protrusion (562) may press one surface (e.g., the bottom surface) of the tray protrusion (429) of the second tray (400a) to bring the second tray (400) into close contact with the first tray (600).

[0372] At the ice-making position of the tray assembly, the lift (560) can move further in one direction (e.g., upward) based on the axis of the shaft (520) so that the second tray (400a) is pressed against the first tray (600). In this process, the protrusion (562) provides a force toward the first tray (600) to the second tray (400a) through the tray protrusion (429), and the second tray (400a) can transmit a force to press against the second tray cover (480a) in one direction (e.g., upward).

[0373] FIG. 23 is a bottom perspective view showing the configuration of a bracket according to a second embodiment of the present invention, FIG. 24 is a perspective view showing the configuration of a first tray according to a second embodiment of the present invention, FIG. 25 is a bottom view showing the configuration of a first tray according to a second embodiment of the present invention, FIG. 26 is a cross-sectional view taken along line 26-26 of FIG. 24, and FIG. 27 is a cross-sectional view showing the configuration of an ice maker according to a second embodiment of the present invention.

[0374] Referring to FIGS. 23 to 27, a first tray (600) according to a second embodiment of the present invention defines a first cell (610b) which is a part of a cell (360), and may include a plurality of tray parts (600a, 600b, 600c) each defining a first cell (610b). The plurality of tray parts may include a first tray part (600a) defining a central cell, a second tray part (600b) defining a first lateral cell, and a third tray part (600c) defining a second lateral cell.

[0375] The first tray (600) may include a first tray wall (610) forming a part of the cell (360). For example, the first tray wall (610) may define the first cell (610b).

[0376] The first tray wall (610) may include a first cell wall (611) defining a first cell surface (610a). The inner surface of the first cell wall (611) forms the first cell surface (610a), and the first cell surface (610a) may be understood to define the outer surface of the first cell (610b).

[0377] The first tray wall (610) may include a first opening (610c). The first opening (610c) forms an end of the first tray wall (610) and may be in contact with the second tray (400a).

[0378] The first tray wall (610) may include a first extension wall (613) extending in one direction (e.g., upward) from a portion of the perimeter of the first cell wall (611). For example, the first extension wall (613) may constitute at least one wall among a portion of the wall (e.g., a front wall) and another portion of the wall (e.g., a side wall) of the first tray (600).

[0379] The first tray wall (610) may include a second extension wall (614) extending in one direction (e.g., upward) from another portion of the perimeter of the first cell wall (611). For example, the second extension wall (614) may constitute a portion of a wall (e.g., a rear wall) of the first tray (600).

[0380] The second extension wall (613) may be positioned on the inner side of the peripheral wall (430) of the second tray (400a), particularly the second extension wall (431, see FIG. 10). At the ice-making position of the tray assembly, one end (e.g., the upper end) of the second extension wall (613) of the first tray (600) may be positioned higher by a first height (△) than one end (e.g., the upper end) of the second extension wall (431) of the second tray (400a).

[0381] The above first tray (600) can be exposed in a first direction (e.g., horizontal direction), i.e., laterally, without being covered by other parts.

[0382] In the relative positional relationship between the second extension wall (613) of the first tray (600) and the second extension wall (431) of the second tray (400a), the gap between the second extension wall (613) and the second extension wall (431) may increase in one direction (e.g., upward). Accordingly, when the second tray (400a) moves forward from the ice-making position to the ice-separating position or moves backward from the ice-separating position to the ice-making position, the phenomenon of interference with the first tray (600) can be prevented.

[0383] The first tray (600) may include a guide wall (615) extending from the first tray wall (610). The guide wall (615) may extend in a direction toward the bracket (220a). For example, the guide wall (615) may extend in one direction (e.g., upward) from the first tray wall (610).

[0384] The above guide wall (615) can form a through hole (615a). The through hole (615a) can be formed to penetrate from the inner surface of the first tray wall (610), i.e., the first cell surface (610a), to the outer surface of the guide wall (615).

[0385] The first end of the above-mentioned through hole (615a), i.e., the inlet end, may be connected to the first cell surface (610a), and the second end of the above-mentioned through hole (615a), i.e., the outlet end, may be connected to one end (e.g., the upper end) of the above-mentioned guide wall (615). During the ice-making process, air bubbles in the cell (360) may be discharged through the above-mentioned through-hole (615a), thereby preventing an air pocket phenomenon in the cell (360).

[0386] The above guide wall (615) may include a drainage portion (615b) that is connected to the through hole (615a) and penetrates one side (e.g., the front) of the guide wall (615). The drainage portion (615b) may direct the fluid discharged through the through hole (615a) to the outside of the first tray (600), thereby preventing ice from forming in the through hole (615a).

[0387] One side (e.g., bottom side) of the above drainage portion (615b) may include an inclined surface (615c) extending in an inclined direction toward one side (e.g., side) of the through hole (615a).

[0388] One end (614a) of the second extension wall (614) may be formed at a point that is equal to or higher than one surface (e.g., the bottom surface) of the drainage portion (615b). Accordingly, it is possible to prevent the fluid discharged from the drainage portion (615b) from leaking out of the first tray (600) beyond the second extension wall (614).

[0389] The first tray (600) may include a space (618) defined by a first cell wall (611), a first extension wall (613), a second extension wall (614), and a guide wall (615). The space (618) may form a storage space in which fluid discharged through the drain (615b) is stored. The space (618) may form a space on one side (e.g., an upper side) of the first cell wall (611). The space (618) may form a space that is sunken based on one end (e.g., an upper end) of the guide wall (615).

[0390] The above space portion (618) can form a heater receiving portion of the moving heater (495). The bottom surface of the space portion (618) can form a heater mounting portion (618a) on which the moving heater (495) is mounted. The moving heater (495) can be placed on the heater mounting portion (618a).

[0391] The above-mentioned moving heater (495) is arranged along the perimeter of the guide wall (615) and can be covered by a bracket (220a). Accordingly, the fluid discharged through the drain (615b) can be prevented from coming into contact with the moving heater (495).

[0392] The bracket (220a) may include a heater fixing portion (221b) for attaching the moving heater (495). The heater fixing portion (221b) may protrude in one direction (e.g., downward) from one surface (e.g., the bottom surface) of the bracket (220a). For example, the heater fixing portion (221b) may protrude in one direction (e.g., downward) from the attachment wall (221a, see FIG. 7) of the bracket (220a).

[0393] The above heater fixing part (221b) may be located in the space part (618). The heater fixing part (221b) may be arranged to surround at least a portion of the moving heater (495), thereby preventing fluid from flowing to the moving heater (495).

[0394] The above heater fixing member (221b) may include a first wall (221d) that supports at least a portion of the first tray (600). The first wall (221d) may have a shape that surrounds the guide wall (615). For example, the first wall (221d) may have a hollow cylindrical shape. The moving heater (495) may be arranged on the inner peripheral surface of the first wall (221d).

[0395] The above heater fixing member (221b) may include a second wall (221e) provided on the outer side of the first wall (221d). The second wall (221e) may be provided to surround at least a portion of the first wall (221d). For example, the second wall (221e) may have a cylindrical shape with both sides open and an interior that is hollow.

[0396] A heater groove (221c) in which a moving heater (495) is positioned may be formed between the first wall (221d) and the second wall (221e). When the moving heater (495) is coupled to the heater groove (221c), the fluid may be prevented from flowing into the heater groove (221c) by being coupled between the first wall (221d) and the second wall (221e).

[0397] Both sides of the second wall (221e) may include an opening (221f) through which the moving heater (495) passes. The moving heater (495) may extend in one direction (e.g., left and right) to be positioned in a tray part defining a plurality of cells (360) and may pass through the opening (221f).

[0398] The first tray (600) may be formed with fastening grooves (616a, 616b) to which fastening members are coupled. The number of fastening grooves may be provided, and the number of fastening grooves (616a, 616b) includes a first fastening groove (616a) provided in the second extension wall (614) and a second fastening groove (616b) provided in the guide wall (615). The fastening members may be coupled to the bracket (220a) and fastened to the number of fastening grooves (616a, 616b), thereby coupling the first tray (600) to the bracket (220a).

[0399] The first tray (600) may include a coupling protrusion (613b) extending in one direction (e.g., upward) from the first extension wall (613). The coupling protrusion (613b) may be inserted into the bracket (220a) to guide the assembly of the first tray (600) and the bracket (220a).

[0400] The first tray (600) may include a joining groove (613a) that is sunken in one direction (e.g., downward) from one end (e.g., upper end) of the first extension wall (613). The joining groove (613a) may be joined to a bracket (220a) to guide the assembly of the first tray (600) and the bracket (220a).

[0401] A first opening (610c) formed in one end (e.g., the bottom) of the first tray (600) can be in contact with a second opening (413) formed in one end (e.g., the top) of the second tray (400a). A portion of the first tray wall (610) forming the first opening (610c) and a portion of the second tray wall (410) forming the second opening (413) can be in contact.

[0402] The portion where the first tray wall (610) and the second tray wall (410) come into contact may be formed lower than the through hole (615a). Accordingly, air discharge from the cell (360) can be easily achieved through the through hole (615a) located relatively on one side (e.g., the upper side).

[0403] FIG. 28 and FIG. 29 are drawings showing modified examples of the configuration of the first tray and the ice heater in the ice maker according to the second embodiment of the present invention.

[0404] Referring to FIGS. 28 and 29, the first tray (650) has the same configuration as the first tray (600) of the second embodiment, except for the fluid drainage structure. Therefore, the description of the first tray (600) can be used for the same parts.

[0405] The first tray wall (610) of the first tray (650) may include a first extension wall (613) extending in one direction (e.g., upward) from a portion of the periphery of the first cell wall (611). For example, the first extension wall (613) may constitute at least one wall among a portion of the wall (e.g., a front wall) and another portion of the wall (e.g., a side wall) of the first tray (600).

[0406] The first tray (650) may include a guide wall (615) forming a through hole (615a) and a drainage portion (615b). The drainage portion (615b) is connected to the through hole (615a) and may penetrate one side (e.g., the side) of the guide wall (615).

[0407] The first extension wall (613) may form an opening (615d) that is fluidly connected to the drainage portion (615b). The drainage portion (615b) may guide the fluid discharged through the through hole (615a) to the opening (615d), thereby discharging the fluid to the outside of the first tray (650).

[0408] The first extension wall (613) includes a coupling protrusion (613b) coupled to the bracket (200a), and the opening (615d) may be formed on one side (e.g., the lower side) of the coupling protrusion (613b). With this configuration, the fluid discharged from the cell (360) through the through hole (615a) is discharged to the outside of the first tray (650) through the drainage portion (615b) and the opening (615d), thereby preventing the problem of the fluid acting on the moving heater (495).

[0409] Figure 30 is an exploded perspective view of an ice maker according to a third embodiment of the present invention.

[0410] Referring to FIG. 30, an ice maker (200b) according to a third embodiment of the present invention may include a first tray (700) forming at least a portion of a cell (360). The ice maker (200b) may include a second tray (400b) forming another portion of the cell (360).

[0411] A plurality of cells (360) can be defined by the first tray (700) and the second tray (400b).

[0412] The first tray (700) may include a plurality of tray parts (700a, 700b, 700c). The number of the plurality of tray parts (700a, 700b, b00c) may correspond to the number of the plurality of cells (360).

[0413] The above ice maker (200b) may include a second tray cover (480b) and a second tray supporter (450b). The description of the second tray cover (480b) and the second tray supporter (450b) may refer to the contents described in the previous embodiment.

[0414] The ice maker (200b) may include a transparent ice heater (490). The ice maker (200b) may include an ice heater (495). The description of the heaters (490, 495) may refer to the contents described in the previous embodiment.

[0415] FIG. 31 is a perspective view showing the configuration of a first tray according to a third embodiment of the present invention, FIG. 32 is a bottom view showing the configuration of a first tray according to a third embodiment of the present invention, FIG. 33 is a cross-sectional view taken along line 33-33 of FIG. 31, and FIG. 34 is a cross-sectional view showing the configuration of an ice maker according to a third embodiment of the present invention.

[0416] Referring to FIGS. 31 to 34, the first tray (700) according to the third embodiment of the present invention can define a first cell (710b) which is a part of a cell (360).

[0417] The first tray (700) may include a plurality of tray parts (700a, 700b, 700c) each defining a first cell (710b). The plurality of tray parts may include a first tray part (700a) defining a central cell, a second tray part (700b) defining a first lateral cell, and a third tray part (700c) defining a second lateral cell.

[0418] The first tray (700) may include a first tray wall (710) forming a part of the cell (360). The first tray wall (710) may define the first cell (710b).

[0419] The first tray wall (710) may include a first cell wall (711) defining a first cell surface (710a). The inner surface of the first cell wall (711) forms the first cell surface (710a), and the first cell surface (710a) may be understood to define an outer surface of the first cell (710b).

[0420] The first tray wall (710) may include a first opening (710c). The first opening (710c) forms an end of the first tray wall (710) and may be in contact with the second tray (400b).

[0421] The first tray wall (710) may include a first extension wall (713) extending in one direction (e.g., upward) from a portion of the perimeter of the first cell wall (711). The first tray wall (710) may include a second extension wall (714) extending in one direction (e.g., upward) from another portion of the perimeter of the first cell wall (711). The description of the first extension wall (713) and the second extension wall (714) may refer to the contents described in the previous embodiment.

[0422] The first tray (700) may include a guide wall (715) extending from the first tray wall (710). The guide wall (615) may form a through hole (715a). The through hole (715a) may be formed to penetrate from the inner surface of the first tray wall (710), i.e., the first cell surface (710a), to the outer surface of the guide wall (715).

[0423] The above guide wall (715) may include a drainage portion (715b) that is connected to the through hole (715a) and penetrates one side (e.g., the front) of the guide wall (715). The drainage portion (715b) may direct the fluid discharged through the through hole (715a) to the outside of the first tray (700), thereby preventing ice from forming in the through hole (715a).

[0424] One side (e.g., bottom side) of the above drainage portion (715b) may include an inclined surface (715c) extending in an inclined direction toward one side (e.g., side) of the through hole (715a). One end (714a) of the second extension wall (714) may be formed at a point that is equal to or higher than one side (e.g., bottom side) of the above drainage portion (715b).

[0425] The first tray (700) may include a space (718) defined by a first cell wall (711), a first extension wall (713), a second extension wall (714), and a guide wall (715). The space (718) may form a storage space in which fluid discharged through the drain (715b) is stored.

[0426] One side (e.g., the bottom side) of the above space portion (718) may form a heater mounting portion (718a) on which the moving heater (495) is mounted. The bracket (220) may include a heater cover portion (221b) that covers the moving heater (495). As described above, the description of the configuration of the first tray wall (710) and the mounting structure of the moving heater (495) may refer to the description of the second embodiment.

[0427] The first tray (700) may be formed with a fastening groove (716) into which a fastening member is coupled. For example, the fastening member may be coupled to the bracket (220) and fastened to the fastening groove (716), thereby coupling the first tray (700) to the bracket (220).

[0428] The first tray (700) may include a joining groove (713a) that is sunken in one direction (e.g., downward) from one end (e.g., upper end) of the first extension wall (713). The joining groove (713a) may be joined to a bracket (220) to guide assembly of the first tray (700) and the bracket (220).

[0429] A first opening (710c) formed in one end (e.g., the bottom) of the first tray (700) can be in contact with a second opening (413) formed in one end (e.g., the top) of the second tray (400b). A portion of the first tray wall (710) forming the first opening (610c) and a portion of the second tray wall (410) forming the second opening (413) can be in contact.

[0430] The portion where the first tray wall (710) and the second tray wall (410) come into contact may be formed lower than the through hole (715a). Accordingly, air discharge from the cell (360) can be easily achieved through the through hole (715a) located relatively on one side (e.g., the upper side).

[0431] One end (e.g., the lower end) defining the first opening (710c) of the first tray (700) may include a first contact end (719) that contacts the second tray (400b). The first contact end (719) may extend in a circumferential direction and form a border of the first opening (710c). For example, the first contact end (719) may have a ring shape.

[0432] The second tray wall (410) of the second tray (400b) may include a first part (411) positioned on one side (e.g., the lower side) of the first extension wall (420) based on the first extension wall (420). The first part (411) may form an area of ​​a part (e.g., the lower side) of the cell (360).

[0433] The second tray wall (410) may include a second part (412) positioned on one side (e.g., upper side) of the first extension wall (420) based on the first extension wall (420). The second part (412) may form a part of an area of ​​another part (e.g., upper) of the cell (360).

[0434] The second part (412) includes a second contact end portion (412c) that comes into contact with the first tray (700). The second contact end portion (412c) can come into contact with the first contact end portion (719) of the first tray (700). The second contact end portion (412c) includes a portion that protrudes radially from the inner circumferential surface of the second part (412) and on which the first contact end portion (719) is seated.

[0435] The second contact end (412c) may be formed in an area where the second part (412) and the third extension wall (433) meet. For example, the second contact end (412c) may have a ring shape. The contact surface where the first contact end (719) and the second contact end (412c) come into contact may include a surface in a first direction (e.g., a horizontal direction).

[0436] The third extension wall (433) of the second tray (400b) can be in contact with the first tray (700). The first extension wall (713) of the first tray (700) includes a first portion extending in one direction (e.g., upward), and the first portion can be in contact with the first part (433a) of the third extension wall (433).

[0437] The first surface (e.g., the vertical surface) of the first part (433a) can be in contact with the second surface (e.g., the vertical surface) provided on the first extension wall (713) of the first tray (700). Therefore, in the area where the third extension wall (433) is provided, the first tray (700) and the second tray (400b) can be in contact with each other through at least one of the two contact surfaces in different directions (e.g., the vertical contact surface and the horizontal contact surface) to maintain the connection. Therefore, stable contact and connection can be achieved between the first tray (700) and the second tray (400b). This contact structure of the first tray (700) and the second tray (400b) can be equally applied to the second embodiment described above.

[0438] Based on the contact surfaces of the first and second contact ends (719, 412c), the second extension wall (714) of the first tray (700) may extend in a unidirectional (e.g., upward) slant. The upper end (714a) of the second extension wall (714) of the first tray (700) may be positioned higher than one end (431b) of the second extension wall (431) of the second tray (400b).

[0439] The second extension wall (714) of the first tray (700) may be extended in a round shape to have a radius of curvature (R1) set based on the center (C2) of the shaft (520). The second extension wall (431) of the second tray (400b) may have a radius of movement (R2) set based on a predetermined center (C3).

[0440] The center (C2) and the center (C3) of the shaft (520) may be formed at different positions. For example, the center (C3) may be formed at a position lower than the center (C2) of the shaft (520). With this configuration, when the second tray (400b) returns from the ice-making position to the ice-making position, the phenomenon of the second tray (400b) being folded and inserted into the area of ​​the first cell (710b) due to interference with the combined first tray (700) can be prevented. In addition, the contact and sealing effect of the first tray (700) and the second tray (400b) can be improved.

[0441] FIG. 35 is a cross-sectional view showing the operation of the ice guide when the ice-making operation is performed in the ice maker according to the third embodiment of the present invention.

[0442] Referring to Fig. 35, when the driving unit (510) is driven forward by a set angle in a state where ice making is complete, the contact between the ice and the first tray (700) is separated, and the ice (I) can move to a state where it is located on the second tray (400b). Since the adhesion force (or contact area) between the ice and the second tray (400b) is formed to be large, the adhesion force (or contact area) between the ice and the first tray (700) can be easily separated during the ice-making process.

[0443] When the second tray (400b) moves forward, the moving guide (487) of the second tray cover (480b) can move forward together with the second tray (400b). The moving guide (487) can move along the outer surface of the second extension wall (714) of the first tray (700). At this time, the end of the moving guide (487) can move in a state adjacent to the second extension wall (714) with or without contacting the second extension wall (714).

[0444] The end of the above-mentioned moving guide (487) can move to the first contact end (719) of the first tray (700) or to a position adjacent to the first contact end (719). In this process, ice debris (Id) that may be present in the first and second contact ends (719, 412c) can be separated from the tray assembly.

[0445] Figure 36 is an exploded perspective view of an ice maker according to a fourth embodiment of the present invention.

[0446] Referring to FIG. 36, an ice maker (200c) according to a fourth embodiment of the present invention may include a first tray (800) forming at least a portion of a cell (360). The ice maker (200c) may include a second tray (400c) forming another portion of the cell (360).

[0447] The above ice maker (200c) may include a second tray cover (480c) and a second tray supporter (450c). The description of the second tray cover (480c) and the second tray supporter (450c) may be based on the description in the previous embodiment.

[0448] The above ice maker (200c) includes a first tray supporter (350), and at least a portion of the first tray supporter (350) can be positioned on one side (e.g., the lower side) of the first tray (800).

[0449] The first tray supporter (350) may include a supporter wall (351) forming an opening (352). The supporter wall (351) may be placed on one side (e.g., the lower side) of the second extension wall (815) of the first tray (800).

[0450] The above opening (352) may be formed so that at least a portion of the first tray supporter (350) may pass through it so that at least a portion of the first tray (800) may pass through it. The opening (352) may have a predetermined curvature corresponding to the shape of the outer circumferential surface of the cell (360), and may be configured to have an area larger than the cross-sectional area of ​​the plurality of first cells of the first tray (800) so that the plurality of first cells may pass through it.

[0451] The first tray supporter (350) may include a tray coupling portion (354) that protrudes in one direction (e.g., upward) from the supporter wall (351). A plurality of the tray coupling portions (354) are provided along the perimeter of one surface (e.g., the upper surface) of the supporter wall (351) and may be inserted into the fastening portion (815a) of the first tray (800).

[0452] The bracket (220) may include a fastening boss (220d) fastened to the first tray (800). The fastening boss (220d) may be provided on a joining wall (221a, see FIG. 7). In a state where the tray joining portion (354) is fastened to the fastening portion (815a), the first tray (800) and the first tray supporter (350) may be placed on one side (e.g., the lower side) of the bracket (220) and fastened to the fastening boss (220d) of the bracket (220) by a fastening member.

[0453] FIG. 37 is a perspective view showing the configuration of a first tray according to a fourth embodiment of the present invention, FIG. 38 is a plan view showing the configuration of a first tray according to a fourth embodiment of the present invention, and FIG. 39 is a bottom view showing the configuration of a first tray according to a fourth embodiment of the present invention.

[0454] Referring to FIGS. 37 to 39, a first tray (800) according to a fourth embodiment of the present invention may define a first cell (810b) that is a part of a cell (360). Considering an ice maker (200c) equipped with a plurality of cells (360), the first tray (800) may include a plurality of first cells (810b).

[0455] The first tray (800) may include a first tray wall (810) forming a part of the cell (360). The first tray wall (810) may include a first cell wall (811) defining a first cell surface (810a). It can be understood that the inner surface of the first cell wall (811) forms the first cell surface (810a), and the first cell surface (810a) defines an outer surface of the first cell (810b).

[0456] The first tray wall (810) may include a first opening (810c). The first opening (810c) forms an end of the first tray wall (810) and may be in contact with the second tray (400c).

[0457] The first tray wall (810) may include a first extension wall (813) extending in one direction (e.g., upward) from a portion of the perimeter of the first cell wall (811). A plurality of the first extension walls (813) may be provided on both sides of the first cell wall (811).

[0458] An opening (813a) is formed between the plurality of first extension walls (813), and the first cell wall (811) can be exposed to the outside of the first tray (800) through the opening (813a).

[0459] The first tray wall (810) may include a second extension wall (815) that is connected to one end (e.g., an upper end) of the first extension wall (813) and extends in a first direction (e.g., a horizontal direction). The second extension wall (815) may extend from one side (e.g., an upper side) of a plurality of first cells (810b). A fastening portion (815a) that is coupled to a first tray supporter (350) may be formed on the second extension wall (815).

[0460] The first tray wall (810) may extend from the second extension wall (815) and include a first connecting wall (816) connecting the spaces between the plurality of first cells (810b).

[0461] The first tray wall (810) may extend recessed from the second extension wall (815) and include a second connecting wall (817) connected to the first cell wall (811). The second connecting wall (817) may be connected to the periphery of the first cell wall (811).

[0462] The second connecting wall (817) includes a first wall (817a) extending in one direction (e.g., left and right) from the center of the first cell wall (811). The second connecting wall (817) includes a second wall (817b) extending in a slanted or rounded manner in one side from the first wall (817a).

[0463] The second connecting wall (817) may include a third wall (817c) that extends slantedly or roundly from the first wall (817a) in the other direction. The second wall (817b) and the third wall (817c) may extend to both sides of the first wall (817a). The second connecting wall (817) and the first cell wall (811) may define a space on one side (e.g., an upper space) of the first cell wall (811).

[0464] The first to third walls (817a, 817b, 817c) may extend in one direction (e.g., downward) from the second extension wall (815) to the outer surface of the first cell wall (811). At this time, the first to third walls (817a, 817b, 817c) may extend in a direction inclined toward one direction (e.g., downward).

[0465] The first tray (800) may include a drain guide (818) extending to one side (e.g., the upper side) of the first cell wall (811). The drain guide (818) may be arranged to surround at least a portion of the through holes (811a, 811b, 811c) so as to guide the fluid discharged through the through holes (811a, 811b, 811c) to one side (e.g., the front) of the first cell wall (811).

[0466] The above through holes (811a, 811b, 811c) can be understood as a part that discharges air during the ice-making process to prevent an air pocket phenomenon in the cell (360). For example, the drainage guide (818) can be configured to cover a first part (e.g., a side part) and a second part (e.g., a rear part) of the through holes (811a, 811b, 811c) and open toward a third part (e.g., a front part).

[0467] A plurality of first cell walls (811) defining the plurality of first cells (810b) are provided, and the through holes (811a, 811b, 811c) can be formed in each of the first cell walls (811).

[0468] Among the plurality of first cell walls (811), a first through hole (811a) may be formed in the first cell wall (811) defining the first cell (810b) on the central side. Among the plurality of first cell walls (811), a second through hole (811b) and a third through hole (811c) may be formed in the first cell walls (811) defining the first cells (810b) on the left and right sides, respectively.

[0469] In the first cell (810b) on the central side, water can be supplied through a water supply unit (240). Water is supplied first to the first cell (810b) on the central side, and the fluid added thereafter can be supplied (water spread) by branching to the first side cell and the second side cell along the water supply path (435, see FIG. 17).

[0470] The discharge portion (243) of the above-described water supply portion (240) may overlap the first cell wall (811) defining the first cell (810b) on the central side. Accordingly, the fluid discharged from the above-described water supply portion (240) may fall onto the first cell wall (811) and flow in one direction (for example, downward) along the first cell wall (811). Accordingly, the first cell wall (811) on the central side may be understood to perform the function of the guide surface (311) described in the first embodiment.

[0471] Figure 40 is an exploded perspective view of an ice maker according to a fifth embodiment of the present invention.

[0472] Referring to FIG. 40, an ice maker (200d) according to a fifth embodiment of the present invention may include a first tray (900) forming at least a portion of a cell (360). The ice maker (200d) may include a second tray (400d) forming another portion of the cell (360).

[0473] The above ice maker (200d) may include a second tray cover (480d) and a second tray supporter (450d). The description of the second tray cover (480d) and the second tray supporter (450d) may be based on the description in the previous embodiment.

[0474] The above ice maker (200d) may include a first tray supporter (350). The description of the first tray supporter (350) refers to the description of the fourth embodiment.

[0475] FIG. 41 is a bottom perspective view showing the configuration of a bracket according to a fifth embodiment of the present invention, FIG. 42 is a perspective view showing the configuration of a first tray according to a fifth embodiment of the present invention, FIG. 43 is a plan view showing the configuration of a first tray according to a fifth embodiment of the present invention, FIG. 44 is a cross-sectional view taken along line 44-44 of FIG. 42, FIG. 45 is a cross-sectional view taken along line 45-45 of FIG. 42, and FIG. 46 is a cross-sectional view showing the configuration of an ice maker according to a fifth embodiment of the present invention.

[0476] Referring to FIGS. 41 to 46, a first tray (900) according to a fifth embodiment of the present invention may define a first cell (910b) that is a part of a cell (360). Considering an ice maker (200d) equipped with a plurality of cells (360), the first tray (900) may include a plurality of first cells (910b).

[0477] The first tray (900) may include a first tray wall (910) forming a part of the cell (360). The first tray wall (910) may include a first cell wall (911) defining a first cell surface (910a). It can be understood that the inner surface of the first cell wall (911) forms the first cell surface (910a), and the first cell surface (910a) defines an outer surface of the first cell (910b).

[0478] The first tray wall (910) may include a first opening (910c). The first opening (910c) forms an end of the first tray wall (910) and may be in contact with the second tray (400d).

[0479] The first tray wall (910) may include a first extension wall (913) extending in one direction (e.g., upward) from a portion of the periphery of the first cell wall (911). A plurality of the first extension walls (913) may be provided on both sides of the first cell wall (911). An opening (913a) is formed between the plurality of first extension walls (913), and the first cell wall (911) may be exposed to the outside of the first tray (900) through the opening (913a).

[0480] The first tray wall (910) may include a second extension wall (915) that is connected to one end (e.g., an upper end) of the first extension wall (913) and extends in a first direction (e.g., a horizontal direction). The second extension wall (915) may extend from one side (e.g., an upper end) of a plurality of first cells (910b). A fastening portion (915a) that is coupled to a first tray supporter (350) may be formed on the second extension wall (915).

[0481] The first tray wall (910) may extend from the second extension wall (915) and include a first connecting wall (916) connecting the spaces between the plurality of first cells (910b).

[0482] The first tray wall (910) may include a second connecting wall (917) extending recessed from the second extension wall (915) and connected to the first cell wall (911). The second connecting wall (917) may be connected to the periphery of the first cell wall (911). The second connecting wall (917) includes a first wall (917a) extending in one direction (e.g., left and right direction) from the rear of the first cell wall (911).

[0483] The second connecting wall (917) may include a second wall (917b) that extends slanted or rounded in one direction from the first wall (917a). The second connecting wall (917) may include a third wall (917c) that extends slanted or rounded in the other direction from the first wall (917a). The second wall (917b) and the third wall (917c) may extend to both sides of the first wall (917a).

[0484] The first to third walls (917a, 917b, 917c) may extend in one direction (e.g., downward) from the second extension wall (915) to the outer surface of the first cell wall (911). At this time, the first to third walls (917a, 917b, 917c) may extend in a direction inclined toward one direction (e.g., downward).

[0485] The first tray (900) may include a drain guide (918) extending to one side (e.g., the upper side) of the first cell wall (911). The drain guide (918) may be arranged to surround at least a portion of the through holes (911a, 911b, 911c), thereby guiding the fluid discharged through the through holes (911a, 911b, 911c) to the outside of the first cell wall (811).

[0486] The above-mentioned through holes (911a, 911b, 911c) can be understood as a part that discharges air during the ice-making process to prevent an air pocket phenomenon in the cell (360).

[0487] The above drainage guide (918) may include a first drainage guide (918a) provided on the outside of the first cell (910b) on the central side among the plurality of central cells (360). The first drainage guide (918a) may be configured to cover a first portion (e.g., a side portion) and a second portion (e.g., a rear portion) of the first through hole (911a) and open toward a third portion (e.g., a front portion).

[0488] The fluid discharged through the first through hole (911a) may not flow to the first part (e.g., the side part) and the second part (e.g., the rear part) of the first cell wall (911) by the first drainage guide (918a) and may be discharged to the third part (e.g., the front part). A space (919a) may be formed between the first drainage guide (918a) and the first wall (917a).

[0489] The first cell wall (911) forming the first cell (910b) on the central side can form a guide surface through which the fluid discharged from the water supply unit (240) flows down. Therefore, even if the fluid discharged through the first through hole (911a) exists as ice on the first cell wall (911), it is washed away by the fluid supplied from the water supply unit (240), so that problems due to the ice may not occur.

[0490] Both ends of the first drainage guide (918a) are connected to the first extension wall (913), and the portion where the first drainage guide (918a) and the first extension wall (913) are connected can define the opening (913a).

[0491] The above drainage guide (918) includes a second drainage guide (918b) and a third drainage guide (918c) provided on the outside of the first cell (910b) on the left and right sides among a plurality of central cells (360). The second drainage guide (918b) and the third drainage guide (918c) may have the same configuration.

[0492] The second drainage guide (918b) may be provided outside the first cell (910b) of the first side. The third drainage guide (918c) may be provided outside the first cell (910b) of the second side. The following description will be based on the second drainage guide (918b), and the description thereof may be equally applied to the third drainage guide (918c).

[0493] The above second drainage guide (918b) may be configured to cover the first part (e.g., the side part) and the second part (e.g., the rear part) of the second through hole (911b) and open toward the third part (e.g., the front part).

[0494] The first cell wall (911) defining the first cell (910b) of the first side is not supplied with water through the water supply unit (240), and as described above, the fluid supplied to the central cell can be supplied with water through a water spreading phenomenon. Therefore, when ice forms on the first cell wall (911) of the first side, washing it away by the water supply is limited. To solve this problem, the second drainage guide (918b) can guide the fluid discharged through the second through hole (911b) to flow to one side (e.g., the rear) of the first cell wall (911).

[0495] Both ends of the second drainage guide (918b) can be connected to the first wall (917a) of the second connecting wall (917) (see Fig. 43).

[0496] A drainage opening (917d) may be formed in the second connecting wall (917) defining the first cell (910b) of the first side. The drainage opening (917d) may be formed in one end (e.g., the lower end) of the first wall (917a). By virtue of the drainage opening (917d), one end (e.g., the lower end) of the first wall (917a) and the first cell wall (911) may be spaced apart.

[0497] The fluid guided to one side (e.g., rear) of the first cell wall (911) by the second drainage guide (918b) can flow through the drainage opening (917d). However, the fluid does not flow into the interior of the cell (360), but can flow around the second extension wall (431, see FIG. 11) of the second tray (400d).

[0498] A channel through which fluid flows can be formed in the space between the first tray (900) and the second extension wall (431). To form the channel, the second connecting wall (917) of the first tray (900) and the second extension wall (431) of the second tray (400d) can be spaced apart from each other.

[0499] The above channel may be positioned on one side (e.g., upper side) of the portion where the first tray (900) and the second tray (400d) come into contact to form the cell (360). Fluid or ice remaining in the channel may be removed by the ice guide (487) during the ice removal process.

[0500] The third drainage guide (918c) is provided on the outside of the first cell wall (911) defining the first cell (910b) of the second side, and can be configured to cover the first part (e.g., the side part) and the second part (e.g., the rear part) of the third through hole (911c) and open toward the third part (e.g., the front part).

[0501] The above bracket (220d) may include a joining wall (221a) to which the first tray (900) is joined. The joining wall (221a) may include a joining boss (220d) that is joined to the first tray (800).

[0502] The bracket (220d) may include a support wall (229) for supporting the first tray (900). The support wall (229) may extend in one direction (for example, downward) from the joining wall (221a). The support wall (229) may reduce the deformation of the first tray (900) and thus prevent separation defects due to deformation of the first tray (900) during the separation process. The first tray (900) may be made of a flexible or ductile material.

[0503] The above support wall (229) may include a first support wall (229a) that supports the drainage guide (918) of the first tray (900). The first support wall (229a) may have a bent shape corresponding to the shape of the drainage guide (918).

[0504] The first support wall (229a) may be in contact with the drainage guide (918). The first support wall (229a) may extend along the bent drainage guide (918). The first support wall (229a) may be arranged to surround at least a portion of the drainage guide (918).

[0505] As described above, the first drainage guide (918a) and the second and third drainage guides (918b, 918c) have different shapes, so the shape of the first support wall (229a) provided on each first cell (910b) side may be different.

[0506] The above support wall (229) may include a second support wall (229b) that supports the second connecting wall (917) of the first tray (900). The second support wall (229b) may have a bent shape corresponding to the shape of the second connecting wall (917).

[0507] The second support wall (229b) may be in contact with the second connecting wall (917). The second support wall (229b) may extend along the second connecting wall (917). The second support wall (229b) may be arranged to surround at least a portion of the second connecting wall (917).

[0508] In the first cell (910b) on the central side, water can be supplied through a water supply unit (240). Water is supplied first to the first cell (910b) on the central side, and the fluid added thereafter can be supplied (water spread) by branching to the first side cell and the second side cell along the water supply path (435, see FIG. 17).

[0509] The discharge portion (243) of the water supply portion (240) may overlap the first cell wall (911) defining the first cell (910b) on the central side. Accordingly, the fluid discharged from the water supply portion (240) may flow to the first cell wall (911) and flow in one direction (for example, downward) along the first cell wall (911). Accordingly, the first cell wall (911) on the central side may be understood to perform the function of the guide surface (311) described in the first embodiment.

[0510] Figure 47 is a cross-sectional view showing the configuration of a plurality of cells according to the fifth embodiment of the present invention.

[0511] Referring to FIG. 47, an ice maker (200d) according to a fifth embodiment of the present invention may include a plurality of cells (360). The diameters of the plurality of cells (360) may be formed differently. For example, the plurality of cells (360) may include a first cell (360a) at the center, and second cells (360b) and third cells (360c) at both sides.

[0512] In order to configure the diameters of the above plurality of cells (360) to be different from each other, the sizes of a portion of the first tray (900) and the second tray (400d) constituting the first cell (360a) may be different from the sizes of a portion of the first tray (900) and the second tray (400d) constituting the second cell (360b).

[0513] Likewise, the sizes of a portion of the first tray (900) and the second tray (400d) constituting the second cell (360b) may be different from the sizes of a portion of the first tray (900) and the second tray (400d) constituting the third cell (360c).

[0514] At least two of the diameter (D11) of the first cell (360a), the diameter (D12) of the second cell (360b), and the diameter (D13) of the third cell (360c) may be formed to have different sizes. For example, D11 may be larger than D12, and D13 may be larger than D11. For example, D11 may be formed to be 49 mm, D12 to be 48 mm, and D13 to be 50 mm.

[0515] At least two of the diameter (D21) of the central cell wall (9111) of the first tray (900) defining a portion of the first cell (360a), the diameter (D22) of the first lateral cell wall (9112) of the first tray (900) defining a portion of the second cell (360b), and the diameter (D23) of the second lateral cell wall (9113) of the first tray (900) defining a portion of the third cell (360c) may be formed to have different sizes. For example, D22 may be larger than D21, and D21 may be larger than D23. For example, D21 may be formed to be 47 mm, D22 to be 45 mm, and D23 to be 49 mm.

[0516] The above D21, D22 and D23 correspond to the diameter of the opening of the second tray (400d). In order to implement this configuration, the height (△) of the part where the first lateral cell wall (9112) and a part of the second tray (400d) are in contact with respect to the center of the height in one direction (e.g., in the vertical direction) of the second cell (360b) may be greater than the height (△) of the part where the second lateral cell wall (9113) and a part of the second tray (400d) are in contact with respect to the center of the height in one direction (e.g., in the vertical direction) of the third cell (360c).

[0517] Based on the contact area between the first tray (900) and the ice, the contact area of ​​the second side cell wall (9113) may be larger than the contact area of ​​the central side cell wall (9111). The contact area of ​​the central side cell wall (9111) may be larger than the contact area of ​​the first side cell wall (9112). Therefore, when separating ice made in a plurality of cells (360), the deformation amount of the second tray (400d), that is, the deformation amount according to the difference between the diameter of the ice and the diameter of the opening of the second tray (400d), may vary over time, so there is an advantage in that the separating torque can be reduced.

[0518] Figure 48 is a cross-sectional view showing an additional embodiment regarding the configuration of the above multiple cells.

[0519] Referring to FIG. 48, in order to configure the diameters of a plurality of cells (360) to be different from each other, the sizes of a portion of the first tray (900) and the second tray (400d) constituting the first cell (360a) may be different from the sizes of a portion of the first tray (900) and the second tray (400d) constituting the second cell (360b).

[0520] The sizes of a portion of the first tray (900) and the second tray (400d) constituting the second cell (360b) may be different from the sizes of a portion of the first tray (900) and the second tray (400d) constituting the third cell (360c).

[0521] At least two of the diameter (D11') of the first cell (360a), the diameter (D12') of the second cell (360b), and the diameter (D13') of the third cell (360c) may be formed to have different sizes. For example, D11' may be larger than D12', and D13' may be larger than D11'. For example, D11' may be formed to be 49 mm, D12' to be 48 mm, and D13' to be 50 mm.

[0522] The diameter (D2') of the central cell wall (9111) of the first tray (900) defining a portion of the first cell (360a), the diameter (D2') of the first lateral cell wall (9112) of the first tray (900) defining a portion of the second cell (360b), and the diameter (D2') of the second lateral cell wall (9113) of the first tray (900) defining a portion of the third cell (360c) may be the same or substantially the same. For example, D2' may be formed to be 47 mm.

[0523] The above D2' may correspond to the diameter of the opening of the second tray (400d). In order to implement this configuration, the height (△) of the part where the first side cell wall (9112) and a part of the second tray (400d) are in contact with respect to the center of the one-way (e.g., vertical) height of the second cell (360b) may be smaller than the height (△) of the part where the second side cell wall (9113) and a part of the second tray (400d) are in contact with respect to the center of the one-way (e.g., vertical) height of the third cell (360c).

[0524] Based on the contact area between the first tray (900) and the ice, the contact areas of the central cell wall (9111), the first side cell wall (9112), and the second side cell wall (9113) may be the same or substantially the same. According to this configuration, when the driving unit (510) is driven to separate ice produced in a plurality of cells (360), the deformation amount of the second tray (400d), that is, the deformation amount according to the difference between the diameter of the ice and the diameter of the opening of the second tray (400d), may vary over time, so there is an advantage in that the separation torque can be reduced.

[0525] Figure 49 is a cross-sectional view showing another additional embodiment regarding the configuration of the above multiple cells.

[0526] Referring to FIG. 49, in order to configure the diameters of a plurality of cells (360) to be different from each other, the sizes of a portion of the first tray (900) and the second tray (400d) constituting the first cell (360a) may be different from the sizes of a portion of the first tray (900) and the second tray (400d) constituting the second cell (360b).

[0527] The sizes of a portion of the first tray (900) and the second tray (400d) constituting the second cell (360b) may be different from the sizes of a portion of the first tray (900) and the second tray (400d) constituting the third cell (360c).

[0528] At least two of the diameter (D11'') of the first cell (360a), the diameter (D12'') of the second cell (360b), and the diameter (D13'') of the third cell (360c) may be formed to have different sizes. For example, D11'' may be larger than D12'', and D13'' may be larger than D11''. For example, D11'' may be formed to be 49 mm, D12'' to be 48 mm, and D13'' to be 50 mm.

[0529] At least two of the diameter (D21'') of the central cell wall (9111) defining a portion of the first cell (360a), the diameter (D22'') of the first lateral cell wall (9112) defining a portion of the second cell (360b), and the diameter (D23'') of the second lateral cell wall (9113) of the first tray (900) defining a portion of the third cell (360c) are formed to have different sizes. For example, D21'' may be larger than D22'', and D23'' may be larger than D21''. For example, D21'' may be formed to be 46 mm, D22'' to be 45 mm, and D23'' to be 47 mm.

[0530] For this configuration, the height (△S3) of the part where the first lateral cell wall (9112) and a part of the second tray (400d) are in contact with respect to the center of the one-way (e.g., vertical) height of the second cell (360b) may be the same as or substantially the same as the height (△S3) of the part where the second lateral cell wall (9113) and a part of the second tray (400d) are in contact with respect to the center of the one-way (e.g., vertical) height of the third cell (360c).

[0531] Based on the contact area between the first tray (900) and the ice, the contact area of ​​the second side cell wall (9113) may be larger than the contact area of ​​the central side cell wall (9111). The contact area of ​​the central side cell wall (9111) may be larger than the contact area of ​​the first side cell wall (9112).

[0532] According to this configuration, when the driving unit (510) is driven to separate ice produced in a plurality of cells (360), the deformation amount of the second tray (400d), that is, the deformation amount according to the difference between the diameter of the ice and the diameter of the opening of the second tray (400d), can vary over time, so there is an advantage in that the separation torque can be reduced.

[0533] The present specification relates to an ice maker and / or a refrigerator equipped with an ice maker, wherein the structures of the first tray and the second tray are improved to easily produce ice of a desired shape, and thus the present specification has significant industrial applicability.

Claims

1. A storage room where food is stored; A door for opening and closing the above storage room; An ice making room provided in the above door or the above storage room; A cooler for supplying cold to the above storage room; A cell, which is a space provided in the above ice making room where a substance changes from a liquid to a solid state; a first tray providing a first wall forming at least a portion of the cell; and a second tray providing a second wall forming another portion of the cell; A refrigerator in which the adhesion between the solid phase-changed material and the first tray is formed to be smaller than the adhesion between the solid phase-changed material and the second tray.

2. In paragraph 1, A refrigerator in which the contact area between the first tray and the material that has undergone a phase change into the solid phase is formed smaller than the contact area between the second tray and the material that has undergone a phase change into the solid phase.

3. In paragraph 1, The first tray forms a first opening in contact with the second tray, and the second tray forms a second opening in contact with the first tray. A refrigerator in which the size of the first opening is formed smaller than the size of the second opening.

4. In paragraph 1, A refrigerator in which, based on the center (C1) of the cell, the diameter (D1) of the cell is formed larger than the diameter (D2) of the portion where the first cell surface forming the inner surface of the first wall and the second cell surface forming the inner surface of the second wall come into contact.

5. In paragraph 4, A refrigerator in which the central angle formed by the first cell surface is smaller than the central angle formed by the second cell surface based on the center (C1) of the cell.

6. In paragraph 1, The above first wall and the above second wall are in contact with each other to form the cell, A refrigerator wherein the circumferential length of the first wall is formed to be smaller than the circumferential length of the second wall.

7. In paragraph 1, The first tray and the second tray are in contact in the first direction, A refrigerator in which the first direction height of the first tray is formed smaller than the first direction height of the second tray.

8. In paragraph 1, A refrigerator wherein the material of the first tray is composed of a material having lower adhesion than the material of the second tray.

9. In paragraph 1, A refrigerator wherein the first tray includes a protrusion that comes into contact with the material that has been phase-changed into a solid state so that the attachment area of ​​the first tray can be smaller than the attachment area of ​​the second tray.

10. In paragraph 1, A refrigerator wherein the first tray includes a coating portion provided on a portion that comes into contact with the solid-phase-changed material so that the attachment area of ​​the first tray can be smaller than the attachment area of ​​the second tray.

11. In paragraph 1, A refrigerator in which the above cell is formed such that the diameter (D3) in the direction corresponding to the freezing direction is larger than the diameter (D1) in the direction perpendicular to the freezing direction so that an elliptical shape is implemented.

12. In paragraph 1, A refrigerator comprising a bracket that combines the first tray and forms a suction hole through which the cold is supplied, and the second tray moves relative to the first tray.

13. In paragraph 1, Including a water supply unit for supplying the material to the above cell, A refrigerator in which the water supply unit is arranged to overlap the first tray or the second tray so as to allow the material to flow to the surface of the first tray or the surface of the second tray.

14. In paragraph 13, The first wall includes a first cell surface forming a part of the inner surface of the cell and an outer surface forming an outer wall of the first cell surface, A refrigerator in which the outer surface forms a guide surface that overlaps the water supply unit so that the material discharged from the water supply unit comes into contact with it.

15. In paragraph 13, A refrigerator wherein the second tray includes an extension wall surrounding at least a portion of the first tray, the extension wall including a portion overlapping the water supply portion so that a material discharged from the water supply portion comes into contact with the extension wall.

16. In paragraph 1, The first tray above, a through hole formed in the first wall to remove air from the cell; and A refrigerator including a drain hole connected to the above through hole and discharging the substance.

17. In paragraph 16, A refrigerator wherein the first tray includes a guide wall extending from the first wall and including a fastening portion coupled to the ice making chamber, and the drain hole is formed in the guide wall.

18. In paragraph 1, The first tray above, a through hole formed in the first wall to remove air from the cell; and A refrigerator including a portion extending to surround at least a portion of the above penetration hole and including a drain guide for guiding discharge of the material.

19. In paragraph 1, The first wall of the first tray includes a first cell wall defining at least a portion of the cell and an extension wall extending from the first cell wall and coupled to the ice making chamber, A refrigerator having a heater receiving portion formed in a space defined by the first cell wall and the extension wall for placing a heater.

20. A storage room where food is stored; A door for opening and closing the above storage room; An ice making room provided in the above door or the above storage room; A cooler for supplying cold to the above storage room; A cell, which is a space provided in the above ice making room where a substance changes from a liquid to a solid state; A water supply unit for supplying substances to the above cells; a first tray providing a first wall forming at least a portion of the cell; and a second tray providing a second wall forming another portion of the cell; A refrigerator in which the first wall includes a guide surface overlapping the water supply unit so that the material discharged from the water supply unit comes into contact with the cell before flowing into the cell.

Images