WO2022255611A1 - Réfrigérateur - Google Patents

Réfrigérateur Download PDF

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Publication number
WO2022255611A1
WO2022255611A1 PCT/KR2022/004426 KR2022004426W WO2022255611A1 WO 2022255611 A1 WO2022255611 A1 WO 2022255611A1 KR 2022004426 W KR2022004426 W KR 2022004426W WO 2022255611 A1 WO2022255611 A1 WO 2022255611A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner casing
cold air
duct
refrigerator
ice
Prior art date
Application number
PCT/KR2022/004426
Other languages
English (en)
Inventor
Nam Gi Lee
Namgyo Lee
Original Assignee
Lg Electronics Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020210070679A external-priority patent/KR20220162339A/ko
Priority claimed from KR1020210072070A external-priority patent/KR20220163653A/ko
Application filed by Lg Electronics Inc. filed Critical Lg Electronics Inc.
Publication of WO2022255611A1 publication Critical patent/WO2022255611A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts

Definitions

  • the present disclosure relates to a refrigerator whose internal volume can be increased.
  • a refrigerator is a home appliance that is provided to store various foods for a long time with cold air generated by using the circulation of a refrigerant according to a refrigeration cycle.
  • the storage compartment may be a storage compartment opened and closed by a swinging door, or a storage compartment configured to be removed or stored in a drawer type.
  • the storage compartment described above may include a freezer compartment for freezing an object to be stored or a refrigerating compartment for refrigerating an object to be stored, or may include at least two freezer compartments or at least two refrigerating compartments.
  • Korean Patent Application Publication No. 10-2006-0129664 Korean Patent Application Publication No. 10-2009-0101525, Korean Patent No. 10-1659622, and Korean Patent No. 10-0918445.
  • the refrigerator having the ice making compartment provided in the refrigerating compartment door is configured such that an ice-making compartment cold air duct is used to supply cold air from a grille assembly in which a blower fan is located to the ice making compartment.
  • Such an ice-making compartment cold air duct is located on a side wall between the inner casing and an outer casing and is configured to connect the refrigerating compartment door with space in which the evaporator is located.
  • a refrigerator is installed to be inserted in a custom designed space, and thus it is practically difficult to increase the external size of the refrigerator, and accordingly, it is also difficult to increase a storage space in the refrigerator.
  • the ice-making compartment cold air duct of the refrigerator is configured such that low-temperature cold air flowing along the ice-making compartment cold air duct passes through the storage compartment maintained at a relatively high temperature, so the cold air flowing along the ice-making compartment cold air duct has a large effect on the temperature change of the storage compartment.
  • a foam material is filled between the outer casing constituting the exterior of the refrigerator and the inner casing. That is, the outer casing and the inner casing may be integrated with each other by the foam material, and heat of the outer casing may be prevented from being conducted to the inner casing.
  • the ice-making compartment cold air duct for supplying cold air generated while passing through the evaporator located in the inner casing providing the freezer compartment to the ice making compartment is located on any one side wall surface between the outer casing and the inner casing.
  • a vacuum insulation panel is provided in a portion between the outer casing and the inner casing in which the structure is provided. This is disclosed in Korean Patent Application Publication No. 10-2011-0015325, Korean Patent Application Publication No. 10-2013-0018919, and Korean Patent Application Publication No. 10-2021-0006701.
  • a gap having a sufficient size is required to be secured between the vacuum insulation panel and the inner casing such that a foam material is filled therebetween. That is, when the foam material is not present between the vacuum insulation panel and the inner casing, the inner casing may hit the vacuum insulation panel due to external impact or shaking such as vibration, and thus the vacuum insulation panel may be damaged.
  • the internal volume of the storage compartment may be further increased.
  • power lines or various fluid pipes are provided between the rear wall surface of the inner casing and the rear wall surface (a back plate) of the outer casing, so the installation space of the associated power lines or the associated fluid pipes is required to be secured.
  • circuit parts such as a controller are installed on the upper surface of a refrigerator, and many wires are connected from the circuit parts to a door, a blower fan, or a machine room so as to supply power thereto.
  • a fluid pipe which supplies drinking water extends along space between the rear wall surface of the inner casing and the rear wall surface of the outer casing.
  • the present disclosure is devised to solve various problems in the prior arts described above.
  • the present disclosure is intended to propose a refrigerator in which through the structural improvement of an ice-making compartment cold air duct, the internal volume of the inner casing is increased.
  • the present disclosure is intended to propose a refrigerator in which through the improvement of the installation structure of the ice-making compartment cold air duct, heat loss of cold air flowing in the ice-making compartment cold air duct is prevented.
  • the present disclosure is intended to propose a refrigerator in which through the improvement of the installation structure of the ice-making compartment cold air duct, the temperature change of an storage space in the inner casing due to cold air recovered from the ice-making compartment cold air duct is minimized.
  • the present disclosure is intended to propose a refrigerator in which a distance between a multi duct and a back plate (a rear wall surface of an outer casing) is decreased.
  • the present disclosure is intended to propose a refrigerator in which dew formation on the back plate which may be caused during the decrease of a distance between the multi duct and the back plate is prevented.
  • an ice-making compartment cold air duct may be provided between an inner surface of any one side wall of an outer casing and an outer wall surface of the inner casing opposing thereto.
  • the ice-making compartment cold air duct may be configured such that cold air flowing from the installation space of the inner casing is supplied to an ice making compartment of a door.
  • the opposing surfaces of the ice-making compartment cold air duct and the outer casing to each other may be in surface contact with each other by a contact member to be adhered to each other. Accordingly, a gap between the ice-making compartment cold air duct and the outer casing may be minimized, and the storage space of a second inner casing may be increased accordingly.
  • the contact member may be formed of a cushioning material to absorb impact.
  • the contact member may be formed of an insulation material to prevent heat conduction.
  • the inner casing and the outer casing may be configured such that a foam material is filled therebetween.
  • a foam material may be prevented from being provided between the opposing surfaces of the ice-making compartment cold air duct and the outer casing to each other.
  • the opposing surfaces of the inner casing and the ice-making compartment cold air duct to each other may be formed to be located to be spaced apart from each other such that the foam material is filled therebetween.
  • the inner casing may include a first inner casing whose storage space is opened and closed by at least one first door.
  • the inner casing may include the second inner casing maintained at a temperature higher than the temperature of the storage space of the first inner casing, the storage space of the second inner casing being opened and closed by at least one second door.
  • the ice making compartment may be located in the second door.
  • the ice-making compartment cold air duct may be connected to the installation space of the first inner casing so as to receive cold air therefrom.
  • the ice-making compartment cold air duct may include a supply duct configured to guide the flow of cold air supplied to the ice making compartment from the installation space.
  • the ice-making compartment cold air duct may include a recovery duct configured to guide the flow of cold air recovered from the ice making compartment to the storage space of the first inner casing.
  • the contact member may be located between the opposing surfaces of the supply duct and the outer casing to each other.
  • the contact member may be located between the opposing surfaces of the recovery duct and the outer casing to each other.
  • the supply duct of the ice-making compartment cold air duct may be configured to pass by a larger portion of the first inner casing than the second inner casing.
  • the recovery duct of the ice-making compartment cold air duct may be configured to pass by a larger portion of the first inner casing than the second inner casing.
  • the ice-making compartment cold air duct may be configured to pass by a larger portion of the first inner casing than the second inner casing.
  • an end of the ice-making compartment cold air duct may be connected to a portion of one side wall surface of the second inner casing which is located at the front of the storage space.
  • the supply duct of the ice-making compartment cold air duct may be connected to the installation space of one side wall surface of the first inner casing.
  • the recovery duct of the ice-making compartment cold air duct may be connected to the storage space of the first inner casing.
  • a portion of the ice-making compartment cold air duct may be formed vertically on the front portion of one side wall surface of the second inner casing.
  • an inner wall surface of a side of the outer casing on which the ice-making compartment cold air duct is located may be provided with a first insulation member.
  • the outer surface of the ice-making compartment cold air duct may be located to face the inner surface of the first insulation member.
  • the contact member may be configured such that the opposing surfaces of the ice-making compartment cold air duct and the first insulation member are adhered to each other to be in surface contact with each other.
  • At least one forming part may be formed on the side wall surface of the inner casing by protruding therefrom.
  • the ice-making compartment cold air duct may be formed by extending along the periphery of the forming part.
  • the ice-making compartment cold air duct may be provided between the inner surface of any one side wall of the outer casing and the outer wall surface of the inner casing opposing thereto.
  • the ice-making compartment cold air duct may guide cold air flowing from the installation space of the inner casing such that the cold air is supplied to the ice making compartment of the door.
  • the opposing surfaces of the ice-making compartment cold air duct and the outer casing to each other may be in surface contact with each other by the contact member to be adhered to each other. Accordingly, a gap between the ice-making compartment cold air duct and the outer casing may be minimized, and the storage space of the first inner casing may be increased accordingly.
  • the contact member may be formed of a cushioning material to absorb impact.
  • the contact member may be formed of an insulation material to prevent heat conduction.
  • a foam material may be filled between the inner casing and the outer casing.
  • a foam material may be prevented from being provided between the opposing surfaces of the ice-making compartment cold air duct and the outer casing to each other.
  • the opposing surfaces of the inner casing and the ice-making compartment cold air duct to each other may be formed to be located to be spaced apart from each other such that a foam material is filled therebetween.
  • the inner casing may include the second inner casing whose storage space is opened and closed by at least one second door.
  • the inner casing may include the second inner casing maintained at a temperature higher than the temperature of the storage space of the first inner casing, the storage space of the second inner casing being opened and closed by at least one second door.
  • the ice making compartment may be located in the second door.
  • the ice-making compartment cold air duct may be connected to the installation space of the first inner casing so as to receive cold air.
  • the ice-making compartment cold air duct may include the supply duct configured to guide the flow of cold air supplied to the ice making compartment from the installation space.
  • the ice-making compartment cold air duct may include the recovery duct configured to guide the flow of cold air recovered to the storage space of the first inner casing from the ice making compartment.
  • the contact member may be located between the opposing surfaces of the supply duct and the outer casing to each other.
  • the contact member may be located between the opposing surfaces of the recovery duct and the outer casing to each other.
  • the supply duct of the ice-making compartment cold air duct may be configured to pass by a larger portion of the first inner casing than the second inner casing.
  • the recovery duct of the ice-making compartment cold air duct may be configured to pass by a larger portion of the first inner casing than the second inner casing.
  • the ice-making compartment cold air duct may be configured to pass by a larger portion of the first inner casing than the second inner casing.
  • an end of the ice-making compartment cold air duct may be connected to a portion of one side wall surface of the first inner casing which is located at the front of the storage space.
  • the supply duct of the ice-making compartment cold air duct may be connected to the installation space of one side wall surface of the first inner casing.
  • the recovery duct of the ice-making compartment cold air duct may be connected to the storage space inside one side wall surface of the second inner casing.
  • a portion of the ice-making compartment cold air duct may be formed vertically on the front portion of one side wall surface of the first inner casing.
  • the inner wall surface of a side of the outer casing on which the ice-making compartment cold air duct is located may be provided with the first insulation member.
  • the outer surface of the ice-making compartment cold air duct may be located to face the inner surface of the first insulation member.
  • the contact member may be configured such that the opposing surfaces of the ice-making compartment cold air duct and the first insulation member are adhered to each other to be in surface contact with each other.
  • At least one forming part may be formed on the side wall of the inner casing by protruding therefrom.
  • the ice-making compartment cold air duct may be formed by extending along the periphery of the forming part.
  • At least one of a wire and a fluid pipe may be installed in a main forming part formed on the inner casing by being recessed therefrom.
  • the main forming part may be formed on the rear wall of the inner casing.
  • the main forming part may be formed on any one side part of the rear wall of the inner casing on which a multi duct of a multi-duct assembly is located.
  • the main forming part may be configured to face a side surface of the multi duct constituting the multi-duct assembly in the rear wall of the inner casing.
  • At least a portion of the front surface of the main forming part may be configured to be in contact with or adjacent to the rear surface of a duct plate constituting the multi-duct assembly.
  • the main forming part may be configured to have width ranging from the rear wall of the inner casing to any one side wall thereof.
  • the rear wall of the outer casing may be configured to be separated from opposite side walls of the outer casing.
  • an insulation member may be provided on any one surface of the opposing surfaces of the rear wall of the outer casing and the rear wall of the inner casing to each other.
  • the insulation member may be configured to cover at least a portion of the multi duct constituting the multi-duct assembly.
  • the insulation member may be adhered to the inner surface of the rear wall of the outer casing.
  • the insulation member and the rear wall of the inner casing may be configured to be spaced apart from each other.
  • foam materials may be filled respectively between the outer casing and the inner casing, and between the insulation member and the rear wall of the inner casing.
  • the insulation member may be configured to be located by avoiding a portion in which the main forming part is formed.
  • the main forming part may be formed from a portion of the rear wall of the inner casing connected to an upper wall thereof to a predetermined height.
  • the main forming part formed on the rear wall of the inner casing may be configured to have vertical height greater than height ranging from the lower end of the main forming part to the lower wall of the inner casing.
  • the ice making compartment which is located in the storage space of the inner casing may be provided in at least any one door.
  • the main forming part may be formed at a side at which the door having the ice making compartment is located.
  • the refrigerator of the present disclosure described above may have the following effects.
  • the temperature change of cold air flowing along the ice-making compartment cold air duct may be decreased, thereby reducing heat loss of the cold air and power consumption.
  • the first insulation member may be located between the ice-making compartment cold air duct and the outer casing, thereby preventing condensate from being formed on the outer casing due to cold air flowing along the ice-making compartment cold air duct.
  • the ice-making compartment cold air duct and the first insulation member may be maintained to be in surface contact with each other by the contact member to be adhered to each other, thereby preventing the first insulation member from being damaged by collision between the ice-making compartment cold air duct and the first insulation member due to the operation or movement of the refrigerator.
  • the ice-making compartment cold air duct may be in surface contact with the inner wall surface of the outer casing (or the first insulation member) by the contact member, thereby minimizing a distance therebetween, and increasing the storage space of the second inner casing accordingly.
  • the ice-making compartment cold air duct may be configured to avoid the forming part of the second inner casing, thereby further increasing the internal volume of the second inner casing.
  • the wire or the fluid pipe may be installed in the main forming part formed on the rear wall of the first inner casing, and thus the rear wall of the first inner casing may be configured to be more adjacent to the rear wall of the outer casing, thereby increasing the internal volume of the first inner casing.
  • the main forming part may be configured on a side part of the multi duct on the rear wall of the first inner casing and may function to guide the mounting of the multi duct, thereby facilitating the mounting of the multi duct of the multi-duct assembly to a precise position.
  • the front surface of the main forming part may be configured to be in contact with or adjacent to the rear surface of the duct plate, thereby facilitating the work of installing the duct plate of the multi-duct assembly on a precise position.
  • the rear corner portion of the first inner casing may be configured to be spaced apart as much as possible from the corner portion of the outer casing, thereby securing an insulation distance between the associated corner portions.
  • the main forming part may be configured up to a portion from which the wire or the fluid pipe is branched, thereby increasing the storage space, as much as possible, of the inside of the first inner casing located under the main forming part.
  • the main forming part may be configured at a side at which the door having the ice making compartment is located, and thus the fluid pipe installed along the main forming part may be located to be adjacent to the ice making compartment as much as possible, thereby decreasing the length of the fluid pipe and minimizing the bent portion of the fluid pipe such that the risk of damage thereto is decreased.
  • the first insulation member may be provided between the multi duct and the rear wall of the outer casing, thereby preventing heat conduction therebetween.
  • cooling efficiency of the refrigerator may be prevented from lowering, and it is possible to prevent dew formation on the rear wall generated by temperature difference between external heat and the multi duct due to the decrease of a distance between the multi duct and the rear wall of the outer casing.
  • FIG. 1 is a perspective view illustrating the external structure of a refrigerator according to the first embodiment of the present disclosure
  • FIG. 2 is an exploded perspective view illustrating the internal structure of the refrigerator according to the first embodiment of the present disclosure
  • FIG. 3 is a perspective view roughly illustrating the relation of a first inner casing to an ice-making compartment cold air duct in the refrigerator according to the first embodiment of the present disclosure
  • FIG. 4 is a front view of a state of the refrigerator in which a door is omitted for explaining the internal structure of the refrigerator according to the first embodiment of the present disclosure
  • FIG. 5 is a side sectional view roughly illustrating the refrigerator for explaining the internal structure of the refrigerator according to the first embodiment of the present disclosure
  • FIG. 6 is a top plan view illustrating by simplifying the states of the insides of the installation space and storage space of the first inner casing in the refrigerator according to the first embodiment of the present disclosure
  • FIG. 7 is a front view illustrating the state of a grille assembly installed in the first inner casing of the refrigerator according to the first embodiment of the present disclosure
  • FIG. 8 is a view roughly illustrating a structure for supplying cold air to an ice making compartment in the refrigerator according to the first embodiment of the present disclosure
  • FIG. 9 is a side view illustrating a state in which the ice-making compartment cold air duct of the refrigerator according to the first embodiment of the present disclosure is connected to each inner casing;
  • FIGS. 10(A), 10(B), and 10(C) are views illustrating each example in which a contact member is installed on the ice-making compartment cold air duct of the refrigerator according to the first embodiment of the present disclosure
  • FIG. 11 is a cross sectional view illustrated by a top plan view illustrating a state in which the ice-making compartment cold air duct and an outer casing are installed to be in surface contact with each other by the contact member in the refrigerator according to the first embodiment of the present disclosure;
  • FIG. 12 is a view illustrating a state in which cold air is circulated to the storage space of the first inner casing of the refrigerator according to the first embodiment of the present disclosure
  • FIG. 13 is a view illustrating a state in which cold air is circulated to the storage space of a second inner casing of the refrigerator according to the first embodiment of the present disclosure
  • FIG. 14 is an exploded perspective view of a structure in which a first insulation member is provided in the refrigerator according to the first embodiment of the present disclosure
  • FIG. 15 is a cross sectional view illustrated by a top plan view illustrating a state in which the ice-making compartment cold air duct and the first insulation member are installed to be in surface contact with each other by the contact member in the refrigerator according to the first embodiment of the present disclosure;
  • FIG. 16 is a rear view of a refrigerator according to a second embodiment of the present disclosure.
  • FIG. 17 is a rear perspective view of each inner casing of the refrigerator according to the second embodiment of the present disclosure.
  • FIG. 18 is a front view of each inner casing of the refrigerator according to the second embodiment of the present disclosure.
  • FIG. 19 is a vertical sectional perspective view illustrating the relation of a main forming part formed in the first inner casing of the refrigerator to the rear wall of the outer casing according to the second embodiment of the present disclosure
  • FIG. 20 is a cross-sectional perspective view illustrating the relation of the main forming part formed in the first inner casing of the refrigerator to the rear wall of the outer casing according to the second embodiment of the present disclosure.
  • FIG. 21 is a cross-sectional view for explaining the internal structure of the refrigerator according to the second embodiment of the present disclosure.
  • FIGS. 1 to 21 a refrigerator according to the exemplary embodiments of the present disclosure will be described with reference to FIGS. 1 to 21.
  • FIG. 1 is a perspective view illustrating the external structure of a refrigerator according to the first embodiment of the present disclosure
  • FIG. 2 is an exploded perspective view illustrating the internal structure of the refrigerator according to the first embodiment of the present disclosure
  • FIG. 3 is a perspective view roughly illustrating the relation of a first inner casing to an ice-making compartment cold air duct in the refrigerator according to the first embodiment of the present disclosure.
  • FIG. 4 is a front view of a state of the refrigerator in which a door is omitted for explaining the internal structure of the refrigerator according to the first embodiment of the present disclosure
  • FIG. 5 is a side sectional view roughly illustrating the refrigerator for explaining the internal structure of the refrigerator according to the first embodiment of the present disclosure
  • the opposing portions of the ice-making compartment cold air duct 400 which supplies cold air to an ice making compartment 321 and an outer casing 100 may be in contact with each other by the contact member 500 to be adhered to each other.
  • the ice-making compartment cold air duct 400 and the inner wall surface of the outer casing 100 opposing thereto may be in surface contact with each other to be adhered to each other, and thus a gap for filling a foam material (not shown) therebetween may not be required to be defined, so a storage space 222 of the inner casing 220 may be increased by the gap.
  • the refrigerator according to the first embodiment of the present disclosure may include the outer casing 100.
  • the outer casing 100 may constitute the exterior of the refrigerator.
  • the outer casing 100 may be configured to have an upper wall 110 and opposite side walls 120.
  • the upper wall 110 and the opposite side walls 120 may be configured to be integrated with each other, or may be assembled with each other to form an integral body after at least one thereof is formed separately.
  • the front and rear surfaces of the outer casing 100 may be formed to be open.
  • the open rear surface of the outer casing 100 may be closed by the rear wall 130.
  • a machine room 101 may be provided in the rear of the inner lower end of the outer casing 100.
  • a refrigeration system may be disposed inside the machine room 101.
  • a compressor 21 constituting a refrigeration cycle may be located as illustrated in FIG. 5.
  • the refrigerator according to the first embodiment of the present disclosure may include the inner casing 210 or 220.
  • the inner casing 210 or 220 may be configured to provide an installation space 211 or 221, or the storage space 212 or 222.
  • the installation space 211 or 221 may be provided as space in which an evaporator 23 or a blower fan 710 is installed, or may be provided as an empty space.
  • the installation space 211 or 221 may be provided on the inner rear side of the storage space 212 or 222. This is illustrated in FIGS. 5 and 6.
  • the storage space 212 or 222 may be space provided to store an item to be stored and may be a remaining portion except for the installation space 211 or 221 in the inner casing 210 or 220.
  • the storage space 212 or 222 may be configured to be open forward.
  • the inner casing 210 or 220 may include at least two inner casings.
  • a plurality inner casings 210 and 220 may be disposed vertically or horizontally to include a plurality of storage spaces 212 and 222, respectively.
  • one inner casing may be configured to provide at least two storage spaces.
  • the inner casing 210 or 220 may include one or at least two inner casings.
  • the inner casing 210 or 220 may include the first inner casing 210 and the second inner casing 220.
  • the first inner casing 210 and the second inner casing 220 may be disposed vertically, horizontally, or diagonally.
  • the second inner casing 220 may be located above the first inner casing 210, and a partitioning wall 230 (see FIGS. 4 to 6) may be provided therebetween.
  • the partitioning wall 230 may be configured as an empty barrel body to be filled with a foam material (now shown) or as a frame connecting the two inner casings 210 and 220 to each other.
  • the second inner casing 220 may have an upper wall 220a, opposite side walls 220b, a rear wall 220c, and a lower wall 220d, and may have the second installation space 221 and the second storage space 222 defined therein.
  • the second inner casing 220 may be configured to have a box shape open in a front surface thereof.
  • the storage spaces 212 and 222 provided by the two inner casings 210 and 220 may be maintained at different storage temperatures.
  • the first storage space 212 of the first inner casing 210 located at a lower side may be maintained at a temperature lower than the temperature of the second storage space 222 of the second inner casing 220 located at a upper side.
  • the first storage space 212 of the first inner casing 210 may be configured as a freezer compartment maintained at a sub-zero temperature
  • the second storage space 222 of the second inner casing 220 may be configured as a refrigerating compartment maintained at a temperature (for example, a temperature above zero) higher than the temperature of the freezer compartment.
  • the installation space 211 or 221 may be provided in any one of the first inner casing 210 and the second inner casing 220, or may be provided in all of the two inner casings 210 and 220.
  • the evaporator 23 may be located in the associated installation space.
  • the evaporator 23 may be located in at least one of the installation spaces 211 and 221.
  • the evaporator 23 may be located inside the first installation space 211 of the first inner casing 210.
  • space between each of the inner casings 210 and 220 and the outer casing 100 may be defined to be filled with a foam material (not shown).
  • the foam material may be filled between the inner casings 210 and 220 in the shape of foam and the outer casing 100 and then may be hardened.
  • a separate filler (or a structure) other than the foam material may be provided between the inner casings 210 and 220 and the outer casing 100, and space between the inner casings 210 and 220 and the outer casing 100 may be defined as an empty space.
  • Each of the installation space 211 or 221 and the storage space 212 or 222 defined inside the inner casing 210 or 220 may be separated from each other by a grille assembly 700 or a multi-duct assembly 800.
  • first installation space 211 and the first storage space 212 defined inside the first inner casing 210 may be separated from each other by the grille assembly 700.
  • the second installation space 221 and the second storage space 222 defined inside the second inner casing 220 may be separated from each other by the multi-duct assembly 800.
  • the blower fan 710 may be installed in the first installation space 211 or the grille assembly 700 provided inside the first inner casing 210. Due to the operation of the blower fan 710, cold air may be supplied to or circulated through the storage space 212 and 222 defined inside the inner casings 210 and 220, respectively.
  • cold air passing through the evaporator 23 may be supplied into the first storage space 212 of the first inner casing 210.
  • the cold air supplied into the first storage space 212 may be circulated back to the evaporator 23.
  • the evaporator 23 located in the first installation space 211 may be installed on the grille assembly 700, on an inner rear surface of the first inner casing 210, or between the grille assembly 700 and the inner rear surface of the first inner casing 210.
  • cold air passing through the evaporator 23 may be supplied into the second storage space 222 of the second inner casing 220.
  • the cold air supplied into the second storage space 222 may be circulated back to the evaporator 23.
  • cold air passing through the evaporator 23 of the grille assembly 700 may be selectively supplied to the multi-duct assembly 800 of the inside of the second inner casing 220 by the operation of an opening/closing member (not shown).
  • the grille assembly 700 and the multi-duct assembly 800 may be connected to each other by a connection flow path 216, and the opening/closing member may be configured to selectively open or close the connection flow path 216.
  • a separate blower fan may be installed even in the multi-duct assembly 800.
  • a separate evaporator may be installed in the second installation space 221 of the second inner casing 220.
  • the grille assembly 700 may be provided with an ice making fan 730. Accordingly, at least a portion of cold air passing through the evaporator 23 may be selectively supplied to the ice making compartment 321 by the ice making fan 730.
  • At least a portion of cold air passing through the evaporator 23 may be selectively supplied into the first storage space 212 of the first inner casing 210 or the second storage space 222 of the second inner casing 220 by the blower fan 710.
  • the refrigerator according to the first embodiment of the present disclosure may include doors 310 and 320 by which the storage spaces 212 and 222 of the inner casings 210 and 220 are respectively opened and closed.
  • the first storage space 212 may be opened and closed by the first door 310
  • the second storage space 222 may be opened and closed by the second door 320.
  • the first door 310 or the second door 320 may be configured as a single door or at least two doors.
  • Each of the doors 310 and 320 may be configured as a door swinging forward and rearward, and each of the doors 310 and 320 may be configured to slide in a vertical or horizontal direction, and may be configured as a drawer-type door.
  • the first door 310 may be configured as a drawer-type door
  • the second door 320 may be configured as a swinging door.
  • At least one door of the doors 310 and 320 may be provided with the ice making compartment 321.
  • the second door 320 of the two doors by which the second inner casing 220 is opened and closed may be provided with the ice making compartment 321.
  • Such an ice making compartment 321 may function to form water or beverages into ice or to store the formed ice by cold air supplied through the ice-making compartment cold air duct 400.
  • the ice making compartment 321 may be provided on the inner wall surface of the second door 320 (a wall surface directed toward the inside of the second inner casing).
  • the ice making compartment 321 may be formed to have a space partitioned from the second storage space 222 of the second inner casing 220.
  • the ice making compartment 321 may be provided in both the second door 320 and the first door 310.
  • the refrigerator according to the first embodiment of the present disclosure may include the ice-making compartment cold air duct 400.
  • the ice-making compartment cold air duct 400 may function to guide the supply of cold air flowing from the first installation space 211 of the first inner casing 210 to the ice making compartment 321 of the second door 320.
  • such an ice-making compartment cold air duct 400 may be located between the inner surface of any one side wall 120 of the outer casing 100 and the side wall of any one of the inner casings 210 and 220 opposing thereto.
  • the ice-making compartment cold air duct 400 may include a supply duct 410.
  • the supply duct 410 may be a duct which guides the supply of cold air generated in the first inner casing 210 to the ice making compartment 321.
  • a first end of such a supply duct 410 may be connected to a portion of one side wall surface of the second inner casing 220 which is located at the front of the second storage space 222.
  • a second end of the supply duct 410 may be connected to a portion of one side wall surface of the first inner casing 210 at which the first installation space 211 is located.
  • the first end of the supply duct 410 may be connected to the front side wall of the second inner casing 220 so as to be open to the inside of the second storage space 222 by passing through the front side wall of the second inner casing 220.
  • the second door 320 may be provided with a supply guide duct 322 which guides the supply of cold air to the ice making compartment 321. When the second door 320 is closed, the supply guide duct 322 may be in contact with the open portion of the supply duct 410 to receive cold air.
  • the ice-making compartment cold air duct 400 may include the recovery duct 420.
  • the recovery duct 420 may be a duct which guides the recovery of cold air circulating in the ice making compartment 321 to the first inner casing 210.
  • the first end of such a recovery duct 420 may be connected to the front portion of one side wall surface of the second inner casing 220.
  • the first end of the recovery duct 420 may be connected to the front side surface of the second inner casing 220 to be open to the inside of the second storage space 222 by passing through the front side surface of the second inner casing 220.
  • the second door 320 may be provided with a recovery guide duct 323 which guides the flow of cold air recovered from the ice making compartment 321, and when the second door 320 is closed, the recovery guide duct 323 may be configured to be in contact with the open portion of the recovery duct 420 so as to transfer cold air thereto.
  • the first end of the recovery duct 420 and the first end of the supply duct 410 may be located to be side by side by being adjacent to each other.
  • the first end of the recovery duct 420 and the first end of the supply duct 410 may be located to be side by side in a vertical direction.
  • the second end of the recovery duct 420 may be connected to the wall surface of a side of the first inner casing 210 so as to be open to the first storage space 212.
  • the second end of the recovery duct 420 may pass through the side surface of the first inner casing 210 to be open to the inside of the first storage space 212.
  • cold air circulating through the ice making compartment 321 may be recovered through the recovery duct 420 to the first storage space 212 of the first inner casing 210, and then may be reintroduced through the introduction duct 720 formed in the grille assembly 700 into the evaporator 23 provided inside the first installation space 211.
  • the ice-making compartment cold air duct 400 may be configured such that heat loss of cold air in the ice-making compartment cold air duct 400 is prevented while the cold air is flowing therein.
  • the ice-making compartment cold air duct 400 may be configured to pass by a portion of the second inner casing 220, as least as possible, having a temperature higher than the temperature of the first inner casing 210, so heat loss of cold air caused by heat exchange of the ice-making compartment cold air duct 400 with the second inner casing 220 may be minimized.
  • a structure to prevent or minimize the heat loss of cold air flowing in such an ice-making compartment cold air duct 400 may be configured variously.
  • the supply duct 410 may be configured to pass by a larger portion of the first inner casing 210 than the second inner casing 220.
  • cold air flowing through the supply duct 410 may be required to be supplied to the ice making compartment 321, and thus may have a temperature lower than the temperature of the second storage space 222 of the second inner casing 220. Accordingly, in a case in which cold air flowing through the supply duct 410 passes through a larger portion of the second inner casing 220, heat loss of cold air in the supply duct 410 may be unavoidably generated accordingly.
  • the supply duct 410 may be configured to pass by a larger portion of the first inner casing 210 than the second inner casing 220 so as to decrease heat loss of cold air in the supply duct 410.
  • the static pressure loss of the ice making fan 730 may be minimized, so an ice making air volume may be maximally secured.
  • the recovery duct 420 may be configured to pass by a larger portion of the first inner casing 210 than the second inner casing 220.
  • cold air flowing through the recovery duct 420 may be recovered to the storage space 212 of the first inner casing 210, so as heat loss of cold air generated while the cold air is flowing through the recovery duct 420 increases, the temperature of the storage space 212 of the first inner casing 210 increases unavoidably.
  • the recovery duct 420 may be configured to pass by a larger portion of the first inner casing 210 so as to decrease the heat loss of cold air.
  • all of the supply duct 410 and the recovery duct 420 may be configured to pass by a larger portion of the first inner casing 210 such that the heat loss of cold air flowing in the ice-making compartment cold air duct 400 can be reduced most greatly.
  • only one duct of the supply duct 410 and the recovery duct 420 may be configured to pass by a larger portion of the first inner casing 210.
  • the ice-making compartment cold air duct 400 may be configured such that the storage space 222 of the second inner casing 220 can be secured as much as possible.
  • At least one forming part 225 may be formed on the side wall 220b of the second inner casing 220 by protruding outward therefrom so as to increase the storage space.
  • the ice-making compartment cold air duct 400 may be configured to pass around a portion in which the forming part 225 is formed without passing therethrough. That is, when extending the opposite side surfaces of the second inner casing 220, the ice-making compartment cold air duct 400 may be configured so as not to interfere therewith.
  • the ice-making compartment cold air duct 400 may be formed by bending or extending curvedly along the outside of the periphery of the forming part 225.
  • a portion of the ice-making compartment cold air duct 400 may be formed vertically along the front portion of one side wall surface of the second inner casing 220. That is, the ice-making compartment cold air duct 400 may be located only on the front portion of the second inner casing 220.
  • remaining portions except for the front portion of the second inner casing 220 may be configured to extend simultaneously (the formation of the forming part).
  • the ice-making compartment cold air duct 400 may be located only on the front portion of one side wall surface of the second inner casing 220, so the effect of a temperature on items stored in the storage space 222 of the second inner casing 220 may be minimized. That is, the front portion of one side wall surface of the second inner casing 220 may be provided as a space in which items are not stored such that a basket 324 of the second door 320 can be located on the front portion, so the temperature change of items stored inside the second inner casing 220 may be minimized.
  • the refrigerator according to the first embodiment of the present disclosure may include the contact member 500.
  • the contact member 500 may be a member which allows the opposing surfaces of the ice-making compartment cold air duct 400 and the outer casing 100 to be in surface contact with each other. Due to the provision of such a contact member 500, a gap may not be formed between the opposing surfaces of the ice-making compartment cold air duct 400 and the outer casing 100.
  • the foam material when filling a foam material in a state in which each of the inner casings 210 and 220 is located inside the outer casing 100, the foam material is not required to be filled between the opposing surfaces of the ice-making compartment cold air duct 400 and the side wall 120 of the outer casing 100. That is, the role of the foam material may be performed by the contact member 500, so it is not required to design spacing the outer casing 100 apart from the ice-making compartment cold air duct 400 in consideration of filling a foam material between the outer casing 100 and the ice-making compartment cold air duct 400.
  • a gap between the outer casing 100 and the ice-making compartment cold air duct 400 may be minimized, and thus the second storage space 222 of the inside of the second inner casing 220 may be further increased by the distance of the gap provided for the foam material.
  • the contact member 500 may be formed by using an adhesive such that the opposing surfaces of the ice-making compartment cold air duct 400 and the outer casing 100 to each other are adhered to each other by the contact member to be in surface contact with each other.
  • the contact member 500 may be formed of a cushioning material to absorb impact.
  • the contact member 500 may be formed of a cushioning material and may prevent damage to the ice-making compartment cold air duct 400 or the outer casing 100 even if two components (the ice-making compartment cold air duct and the inner wall surface of the outer casing) hit each other due to vibration or movement according to the operation of the refrigerator.
  • the cushioning material may include materials such as rubber, sponge, and Styrofoam.
  • the contact member 500 may be formed of an insulation material.
  • the contact member 500 may be formed of an insulation material such that heat conduction between the ice-making compartment cold air duct 400 and the outer casing 100 can be prevented.
  • the insulation material may include materials such as rubber, sponge, and Styrofoam.
  • the contact member 500 may be located on the outer surface of the supply duct 410 opposite to the side wall 120 of the outer casing 100, or as illustrated in FIG. 10(B), may be located on the outer surface of the recovery duct 420 opposite to the side wall 120 of the outer casing 100.
  • the contact member 500 may be located on each of all of the opposing surfaces of the ice-making compartment cold air duct 400 and the outer casing 100 to each other. Accordingly, a foam material may be prevented from flowing into space therebetween such that the ice-making compartment cold air duct 400 and the outer casing 100 are integrated with each other. This is illustrated in FIG. 11.
  • the contact member 500 may be provided between the opposing surfaces of the ice-making compartment cold air duct 400 and the inner casing 210 or 220 to each other. That is, the ice-making compartment cold air duct 400 may be configured such that the opposite surfaces thereof are simultaneously adhered to the inner casing 210 or 220 and the outer casing 100.
  • the outer wall surface of the inner casing 210 or 220 may include a plurality of forming portions including the forming part 225. Accordingly, the structure of the ice-making compartment cold air duct 400 or the contact member 500 may be required to be changed according to the shape of the forming portions, so it is difficult to manufacture the ice-making compartment cold air duct 400 or the contact member 500.
  • a foam material may be unintentionally introduced into a gap therebetween.
  • the contact member 500 may be most preferably provided only on the opposing surfaces of the ice-making compartment cold air duct 400 and the outer casing 100 to each other.
  • a cooling operation for the storage space 212 or 222 of each of the inner casings 210 and 220 may be performed by the operation of the blower fan 710 and the compressor 21, or the operation of the opening/closing member (not shown).
  • cold air may be supplied into the storage space 212 or 222 of each of the inner casings 210 and 220 to maintain a preset temperature range thereof.
  • a refrigerant compressed by the compressor 21 may be supplied through a condenser (not shown) and an expander (not shown) to the evaporator 23.
  • cold air may be supplied into the first storage space 212 of the first inner casing 210.
  • a cold air circulation may be repeated in which after cold air supplied into the first storage space 212 of the first inner casing 210 flows through the first storage space 212, the cold air flows through the introduction duct 720 to the air introduction side of the evaporator 23. This is illustrated in FIG. 12.
  • the opening/closing member may operate and may prevent the flow of cold air to the first storage space 212 of the first inner casing 210, and may open the connection flow path 216 connected to the multi-duct assembly 800 provided inside the second inner casing 220.
  • cold air passing through the evaporator 23 may flow to the grille assembly 700 and then may be supplied through the connection flow path 216 to the multi-duct assembly 800 provided inside the second inner casing 220. Continuously, the cold air may be supplied through each discharge hole formed in the multi-duct assembly 800 into the second storage space 222 of the second inner casing 220.
  • Cold air circulation may be repeated in which cold air supplied to the second storage space 222 of the second inner casing 220 flows through the second storage space 222 and then is recovered to the recovery duct 830 of the multi-duct assembly 800, and continuously, flows through a guide flow path 840 to the air introduction side of the evaporator 23. This is illustrated in FIG. 13.
  • the cooling operation of the ice making compartment 321 may also be performed periodically, when a condition is satisfied, or when required by a user.
  • the ice making fan 730 may be controlled to operate such that a refrigerant compressed by the compressor 21 is supplied through the condenser and the expander to the evaporator 23.
  • Cold air exchanging heat while passing through the evaporator 23 due to the operation of the ice making fan 730 may flow along the supply duct 410 constituting the ice-making compartment cold air duct 400 and may be transferred to the supply guide duct 322 provided in the second door 320, and then may be supplied to the ice making compartment 321 such that the cold air is used to make ice or to store the ice.
  • Cold air flowing in the ice making compartment 321 may flow along the recovery guide duct 323 provided in the second door 320, and may be supplied to the recovery duct 420 constituting the ice-making compartment cold air duct 400, and continuously, may be recovered through the recovery duct 420 into the storage space 212 of the first inner casing 210. This is illustrated in FIG. 5.
  • cold air circulation may be repeated in which cold air recovered to the first storage space 212 of the first inner casing 210 and some of cold air present in the associated first storage space 212 flow through the introduction duct 720 and flow to the air introduction side of the evaporator 23.
  • the cold air may be influenced by each of the inner casings 210 and 220 and the outer casing 100.
  • the ice-making compartment cold air duct 400 may be configured to simultaneously pass by the first inner casing 210 and the second inner casing 220, so cold air flowing through the ice-making compartment cold air duct 400 may be influenced by heat conducted from the first inner casing 210 and the second inner casing 220.
  • the storage space 222 inside the second inner casing 220 may be maintained at a temperature higher than the temperature of cold air flowing along the first inner casing 210 or the ice-making compartment cold air duct 400, so cold air flowing along the ice-making compartment cold air duct 400 may have a temperature increased slightly while passing through a portion in which the second inner casing 220 is located.
  • the ice-making compartment cold air duct 400 may be configured to pass by a larger portion of the first inner casing 210 than the second inner casing 220, so the temperature change of cold air flowing along the associated ice-making compartment cold air duct 400 may be decreased.
  • the refrigerator of the present disclosure may be configured to have various structures other than the first embodiment described above.
  • a first insulation member 610 may be provided on one side inner wall surface of the opposite side walls 120 of the outer casing 100 at which the ice-making compartment cold air duct 400 is located.
  • dew formation may be generated on a side wall 120 of the outer casing 100 due to cold air flowing through the ice-making compartment cold air duct 400.
  • the temperature of the outer casing 100 may increase and heat thereof may be supplied to the ice-making compartment cold air duct 400, so the temperature of cold air supplied to the ice making compartment 321 may be increased.
  • the first insulation member 610 may be provided in a portion in which the ice-making compartment cold air duct 400 is located so as to prevent a temperature effect which each of the ice-making compartment cold air duct 400 and the outer casing 100 has on each other.
  • the first insulation member 610 may be formed of a vacuum insulation panel having a vacuum space therein.
  • the first insulation member 610 may be configured to cover all of the inner surfaces of the side walls 120 of the outer casing 100, may be configured to cover only a portion in which the ice-making compartment cold air duct 400 is located, or may be configured to cover only a portion including the portion in which the ice-making compartment cold air duct 400 is located.
  • the ice-making compartment cold air duct 400 may be in surface contact with the first insulation member 610 by the contact member 500 to be adhered to each other.
  • the ice-making compartment cold air duct 400 and the first insulation member 610 may be in surface contact with each other by being adhered to each other such that the first insulation member 610 is prevented from being damaged due to impact caused by collision against each other.
  • the inner surface of the side wall 120 of the outer casing 100 may be configured such that the first insulation member 610 is received in the inner surface.
  • the ice-making compartment cold air duct 400 may be installed to be in surface contact with the inner surface of the outer casing 100 to be adhered to each other.
  • the temperature change of cold air flowing through the ice-making compartment cold air duct 400 may be decreased to decrease heat loss of the cold air, thereby reducing power consumption.
  • the ice-making compartment cold air duct 400 may be maintained to be in surface contact with the inner surface of the side wall 120 of the outer casing 100 by the contact member 500 so as to be adhered to each other, so the ice-making compartment cold air duct 400 or the side wall 120 of the outer casing 100 may be prevented from being damaged due to collision between the associated components caused by the operation or movement of the refrigerator.
  • the ice-making compartment cold air duct 400 may be in surface contact with the inner wall surface of the outer casing 100 by the contact member 500 to minimize a distance therebetween, and thus the storage space 222 of the second inner casing 220 may be increased accordingly.
  • the contact member 500 may be formed of a cushioning material, so damage to the ice-making compartment cold air duct 400 or the outer casing 100 may be further decreased.
  • the contact member 500 maybe formed of an insulation material, so heat transfer between the ice-making compartment cold air duct 400 and the outer casing 100 may be prevented.
  • the ice-making compartment cold air duct 400 may be configured to avoid the forming part 225 of the second inner casing 220, so the internal volume of the second inner casing 220 may be further increased.
  • the difficulty of the extension of the second inner casing 220 due to interference of the second inner casing 220 with the ice-making compartment cold air duct 400 may be released.
  • the first insulation member 610 may be located between the ice-making compartment cold air duct 400 and the outer casing 100, so condensate may be prevented from being formed on the outer casing due to cold air flowing along the ice-making compartment cold air duct 400.
  • the ice-making compartment cold air duct 400 and the first insulation member 610 may be maintained to be in surface contact with each other by the contact member 500 to be adhered to each other, so the first insulation member 610 may be prevented from being damaged by collision between the ice-making compartment cold air duct 400 and the first insulation member 610 due to the operation or movement of the refrigerator.
  • the refrigerator of the present disclosure may have internal volume increased even by a structure other than the structure of the first embodiment described above.
  • FIG. 16 is a view illustrating the state of the exterior of the rear of a refrigerator according to a second embodiment of the present disclosure
  • FIG. 17 is a view illustrating the state of the exterior of the rear of each inner casing of the refrigerator according to the second embodiment of the present disclosure
  • FIG. 18 is the front view of the internal structure of the refrigerator according to the second embodiment of the present disclosure.
  • FIGS. 19 to 21 illustrate structures related to a main forming part of the refrigerator according to the second embodiment of the present disclosure.
  • wires 103 or a fluid pipe 104 extending along the rear wall 220c of the second inner casing 220 may be spaced apart as much as possible from the rear wall 130 of the outer casing 100. Accordingly, the internal volume of the second storage space 222 of the second inner casing 220 may be increased.
  • the refrigerator according to the second embodiment of the present disclosure may include a controller 102.
  • a controller 102 may control the operation of various electronic devices.
  • a power source a compressor or a motor, etc.
  • a drive source a blower fan, etc.
  • a heat source a heater, etc.
  • a sensor a display device
  • a display device may be operated by the controller 102.
  • the controller 102 may be configured to supply power to each electronic device or transmit/receive a signal through each of the wires 103.
  • a separate power supply other than the controller 102 may be provided and may be configured to supply power to each electronic device.
  • the controller 102 may be installed on the outer surface (for example, an upper surface) of the outer casing 100, may be installed between the outer casing 100 and any one of the inner casings 210 and 220, or may be installed in the machine room 101.
  • a through hole 131 (see FIG. 16) through which the wire 103 passes may be formed in the rear wall 130 constituting the outer casing 100.
  • the wire 103 may be installed to pass through the through hole 131 and may connect the controller 102 of the outer surface of the outer casing 100 to each operation device provided inside the outer casing 100 such that a signal can be transferred therebetween.
  • the multi-duct assembly 800 may include a duct plate 810 and a multi duct 820.
  • the duct plate 810 may constitute the front surface of the multi-duct assembly 800. That is, the duct plate 810 may be located to be exposed to the inside of the second storage space 222.
  • the multi duct 820 may be configured to guide the flow of cold air.
  • at least one cold air flow path 821 may be formed in the multi duct 820 so as to guide the flow of cold air.
  • At least one cold air discharge hole 811 may be formed in the duct plate 810 such that cold air flowing through the cold air flow path 821 of the multi duct 820 can be supplied into the second storage space 222.
  • at least a part of the cold air discharge holes 811 may be configured to communicate with the cold air flow path 821.
  • the cold air discharge holes 811 formed in the duct plate 810 or the cold air flow paths 821 formed in the multi duct 820 may be configured to discharge different amounts of cold air to portions of the second storage space 222 of opposite sides relative to the center of the duct plate 810.
  • the cold air discharge holes 811 or the cold air flow paths 821 may be configured such that a less amount of cold air is discharged to the second side.
  • cold air may be configured to be supplied to a side of the inside of the second storage space 222 at which the ice making compartment 321 is located only in a less amount than to other portions.
  • the duct plate 810 may be configured to have the same horizontal width and the same vertical height as space inside the second inner casing 220 (for example, an installation space, a storage space, or a space between the installation space and the storage space).
  • the multi duct 820 may be configured to have a horizontal width smaller than the horizontal width of the duct plate 810.
  • the multi duct 820 may be formed on the rear surface of the duct plate 810 by protruding therefrom.
  • the front surface of the multi duct 820 may be configured to be integrated with the rear surface of the duct plate 810 by being in contact therewith.
  • the front surface of the multi duct 820 may be adhered to the rear surface of the duct plate 810 by an adhesive.
  • the main forming part 226 may be formed on the rear wall 220c of the second inner casing 220.
  • Such a main forming part 226 may be formed on the second inner casing 220 by being recessed inward therefrom as illustrated in FIGS. 8 to 14.
  • any one of the wire 103 and the fluid pipe 104 may be installed in the main forming part 226 described above. Accordingly, since the wire 103 or the fluid pipe 104 may be received in the main forming part 226, a distance between the rear wall 220c of the second inner casing 220 and the rear wall 130 of the outer casing 100 may be further decreased by the thickness of the wire 103 or the fluid pipe 104.
  • the main forming part 226 may be formed at various positions and may be configured to have various shapes.
  • the main forming part 226 may be formed in any one side part of the multi duct 820 constituting the multi-duct assembly 800 on the rear wall 220c of the second inner casing 220. That is, the multi duct 820 may be formed by protruding from the duct plate 810 so as to have a thickness for the efficient guide of the flow of cold air and heat insulation, and accordingly, the main forming part 226 may be formed on any one side part of the multi duct 820 by being recessed by the protruding thickness of the multi duct 820 therefrom.
  • any one side surface of the main forming part 226 may be configured to face a side surface of the multi duct 820. That is, the two side surfaces described above may be configured to be engaged with each other while facing each other, so the multi duct 820 of the multi-duct assembly 800 may be easily mounted to a precise position inside the second inner casing 220.
  • At least a portion of the front surface of the main forming part 226 may be configured to be in contact with or adjacent to the rear surface of the duct plate 810. That is, the front surface of the main forming part 226 may constitute the mounting surface of the duct plate 810. Accordingly, the work of installing the duct plate 810 of the multi-duct assembly 800 on a precise position may be easily performed.
  • the main forming part 226 may be configured to have width ranging from the rear wall 220c of the second inner casing 220 to any one side wall 220b thereof. That is, the rear corner portion of the second inner casing 220 may be configured to be spaced apart as much as possible from the corner portion of the outer casing 100 such that an insulation distance between the associated corner portions can be secured.
  • the main forming part 226 may be formed from a portion of the rear wall 220c of the second inner casing 220 connected to the upper wall 220a thereof to a predetermined height. That is, the main forming part 226 may be formed up to a portion from which the wires 103 or the fluid pipes 104 are branched such that the second storage space 222 of the inside of the second inner casing 220 located under the main forming part 226 is secured.
  • the main forming part 226 formed on the rear wall 220c of the second inner casing 220 may be configured to have vertical height H1 greater than height H2 ranging from the lower end of the main forming part 226 to the lower wall 220d of the second inner casing 220. That is, the branching point P (see FIG. 17) of the wire 103 or the fluid pipe 104 may be located at as a low portion as possible of the second inner casing 220. Accordingly, the wire 103 or the fluid pipe 104 may have a sufficient length thereof received in the main forming part 226 such that a stable installed state thereof can be maintained.
  • the second storage space 222 effective in the second inner casing 220 may decrease.
  • a first auxiliary forming part 227 may be formed on at least any one side wall 220b of the second inner casing 220.
  • the first auxiliary forming part 227 may be formed from the upper end of the associated side wall 220b to height to which the main forming part 226 is formed.
  • a separate auxiliary forming part 228 may be formed on the side wall 220b of the second inner casing 220.
  • the main forming part 226 may be formed on a side at which the first door 310 having the ice making compartment 321 is located. That is, when the ice making compartment 321 is provided in the first door 310, the fluid pipe 104 may be installed in the main forming part 226. In consideration of this, the fluid pipe 104 installed along the main forming part 226 may be located to be adjacent to the ice making compartment 321 as much as possible. Accordingly, the length of the fluid pipe 104 may be reduced, and the bent portions of the fluid pipe 104 may be minimized such that the risk of damage thereto can be reduced.
  • the wire 103 or the fluid pipe 104 may not be located between the opposing surfaces of the rear wall 130 of the outer casing 100 and the rear wall 220c of the second inner casing 220 to each other, so a distance between the opposing surfaces of the rear wall 130 and the rear wall 220c may be reduced by the thickness of the wire 103 or the fluid pipe 104.
  • cold air flowing in the multi duct 820 may be influenced by heat transferred from the rear wall 130 of the outer casing 100, and due to a temperature difference between the rear wall 130 and the rear wall 220c, dew may be formed on the rear wall 130 of the outer casing 100.
  • a second insulation member 620 may be provided on any one surface of the opposing surfaces of the rear wall 130 of the outer casing 100 and the rear wall 220c of the second inner casing 220 to each other.
  • the second insulation member 620 may prevent cold air in the multi duct 820 from being influenced by external air, and may prevent dew from being formed on the rear wall 130 of the outer casing 100. Accordingly, the rear wall 220c of the second inner casing 220 may be configured to be adjacent to the rear wall 130 of the outer casing 100 as much as possible such that the second storage space 222 of the second inner casing 220 can be increased.
  • Such a second insulation member 620 may be formed or provided in various sizes and shapes.
  • the second insulation member 620 may be formed of a vacuum insulation panel having a vacuum space defined therein. That is, by forming the second insulation member 620 of the vacuum insulation panel, the thickness of the second insulation member 620 may be minimized and the insulation performance thereof may be improved.
  • the second insulation member 620 may be configured to cover at least a portion of the multi duct 820 constituting the multi-duct assembly 800.
  • the second insulation member 620 may be configured to cover the cold air flow path 821 formed in the multi duct 820, and may be configured to cover the entirety of the multi duct 820.
  • the second insulation member 620 is preferable configured to cover the cold air flow path 821.
  • the second insulation member 620 may be configured to avoid a portion in which the main forming part 226 is formed. That is, when the wire 103 or the fluid pipe 104 located in the main forming part 226 applies an impact to the second insulation member 620 due to vibration generated during the operation of the refrigerator or shaking caused by movement of the refrigerator, the second insulation member 620 may be damaged.
  • the second insulation member 620 is preferably configured to avoid a portion in which the wire 103 or the fluid pipe 104 is located.
  • the second insulation member 620 may be configured to avoid the main forming part 226 such that the risk of damage to the second insulation member 620 by the wire 103 or the fluid pipe 104 can be reduced.
  • the second insulation member 620 may be adhered to the inner surface of the rear wall 130 of the outer casing 100 by an adhesive.
  • the second insulation member 620 may be adhered to the outer surface (a surface opposing to the rear wall of the outer casing) of the rear wall 220c of the second inner casing 220.
  • the rear wall 220c of the second inner casing 220 may have a plurality of corrugated parts and may be connected with a plurality of ducts, it is preferable that the second insulation member 620 is adhered to the rear wall 130 of the outer casing 100.
  • the second insulation member 620 and the rear wall 220c of the second inner casing 220 may be configured to be spaced apart from each other. That is, when the rear wall 220c of the second inner casing 220 is configured to be excessively adjacent to or to be in contact with the second insulation member 620 despite the provision of the second insulation member 620, the rear wall 220c of the second inner casing 220 may apply an impact to the second insulation member 620 due to vibration generated during the operation of the refrigerator or shaking caused by movement of the refrigerator, and thus the second insulation member 620 may be damaged.
  • the second insulation member 620 and the rear wall 220c of the second inner casing 220 may be configured to be spaced apart from each other, and a foam material may be filled the associated portion therebetween such that insulation performance can be improved and the second insulation member 620 can be protected.
  • a foam material may be filled between the second insulation member 620 and the rear wall 220c of the second inner casing 220, and may be filled as a whole between the outer casing 100 and each of the inner casings 210 and 220.
  • the supply process of cold air during the cooling operation of the refrigerator according to the second embodiment of the present disclosure described above may be performed in the same manner as the supply process of cold air in the first embodiment described above.
  • each storage space 212 or 222 may be selectively operated to supply cold air through the grille assembly 700 or the multi-duct assembly 800 into each storage space 212 or 222. Accordingly, each storage space 212 or 222 may maintain a preset temperature range.
  • the opening/closing member may be operated to supply cold air only to any one storage space 212 or 222, or to two storage spaces 212 and 222.
  • a foam material may be filled between the outer casing 100 and the second inner casing 220 so as to prevent the heat conduction.
  • a distance between the rear wall 130 of the outer casing 100 and the rear wall 220c of the second inner casing 220 on which the multi duct 820 is located may be as narrow as possible so as to increase the second storage space 222 of the second inner casing 220, and thus even if a foam material is filled therebetween, indoor heat may be conducted to the rear wall 220c of the second inner casing 220.
  • the second insulation member 620 may be located on a portion of the rear wall 130 of the outer casing 100 opposing to the multi duct 820, so even if a distance therebetween is narrow, external heat may be prevented from being conducted to the multi duct 820.
  • the refrigerator according to the second embodiment of the present disclosure may be provided to have various shapes other than the shape of the structure thereof described above.
  • the second insulation member 620 may be provided even on the inner surface of any one side wall 120 of the outer casing 100.
  • a portion in which the second insulation member 620 is provided may, for example, be a portion in which a cold air duct (not shown) for supplying cold air to the ice making compartment 321 is located. That is, due to the second insulation member 620, cold air flowing through the cold air duct may not be influenced by external temperature.
  • the wire 103 or the fluid pipe 104 may be installed in the main forming part 226 formed on the rear wall 220c of the second inner casing 220. Because of this, the rear wall 220c of the second inner casing 220 may be configured to be further adjacent to the rear wall 130 of the outer casing 100, and accordingly, the internal volume of the second inner casing 220 may be increased.
  • the main forming part 226 may be formed on a side part of the multi duct 820 of the rear wall 220c of the second inner casing 220, and may function to guide the mounting of the multi duct 820. Accordingly, the mounting of the multi duct 820 of the multi-duct assembly 800 to a precise position may be easily performed.
  • the front surface of the main forming part 226 may be configured to be in contact with or adjacent to the rear surface of the duct plate 810. Accordingly, the work of installing the duct plate 810 on a precise position may be easily performed.
  • the rear corner portion of the second inner casing 220 may be configured to be spaced apart as much as possible from the corner portion of the outer casing 100. Accordingly, an insulation distance between the associated corner portions may be secured.
  • the main forming part 226 may be formed up to a portion from which the wires 103 or the fluid pipes 104 are branched. Accordingly, the second storage space 222 of the inside of the second inner casing 220 located under the main forming part 226 may be secured as much as possible.
  • the main forming part 226 may be formed at a side at which the door 310 having the ice making compartment 321 is located. Accordingly, the fluid pipe 104 installed along the main forming part 226 may be located to be adjacent to the ice making compartment 321 as much as possible, so the length of the fluid pipe 104 may be decreased, and the bent portion of the fluid pipe 104 may be minimized such that the risk of damage thereto can be reduced.
  • the second insulation member 620 may be provided between the multi duct 820 and the rear wall 130 of the outer casing 100, so heat conduction therebetween may be prevented.
  • cooling efficiency of the refrigerator may be prevented from lowering, and it is possible to prevent dew formation on the rear wall 130 generated by temperature difference between external heat and the multi duct 820 due to the decrease of a distance between the multi duct 820 and the rear wall 130 of the outer casing 100.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

L'invention concerne un réfrigérateur dans lequel un conduit aéraulique froid de compartiment de fabrication de glace est configuré en contact de surface avec un boîtier externe ou un panneau isolant sous vide de telle sorte qu'un matériau de mousse n'est pas rempli entre ceux-ci. De plus, dans le réfrigérateur, une partie de formation principale est formée sur la paroi arrière d'un boîtier interne en étant en retrait à partir de celle-ci, et au moins l'un d'un fil et d'un tuyau de fluide est installé dans la partie de formation principale. Par conséquent, le volume interne de l'espace de stockage défini dans le boîtier interne peut être augmenté.
PCT/KR2022/004426 2021-06-01 2022-03-29 Réfrigérateur WO2022255611A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2021-0070679 2021-06-01
KR1020210070679A KR20220162339A (ko) 2021-06-01 2021-06-01 냉장고
KR1020210072070A KR20220163653A (ko) 2021-06-03 2021-06-03 냉장고
KR10-2021-0072070 2021-06-03

Publications (1)

Publication Number Publication Date
WO2022255611A1 true WO2022255611A1 (fr) 2022-12-08

Family

ID=84323329

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2022/004426 WO2022255611A1 (fr) 2021-06-01 2022-03-29 Réfrigérateur

Country Status (1)

Country Link
WO (1) WO2022255611A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006162144A (ja) * 2004-12-07 2006-06-22 Sharp Corp 冷蔵庫
KR100614317B1 (ko) * 2005-02-23 2006-08-21 엘지전자 주식회사 냉장고
KR100716254B1 (ko) * 2006-08-18 2007-05-08 삼성전자주식회사 냉장고
KR20100067471A (ko) * 2008-12-11 2010-06-21 엘지전자 주식회사 열전도시트를 구비한 냉장고
US20130174598A1 (en) * 2010-09-20 2013-07-11 Lg Electronics Inc. Refrigerator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006162144A (ja) * 2004-12-07 2006-06-22 Sharp Corp 冷蔵庫
KR100614317B1 (ko) * 2005-02-23 2006-08-21 엘지전자 주식회사 냉장고
KR100716254B1 (ko) * 2006-08-18 2007-05-08 삼성전자주식회사 냉장고
KR20100067471A (ko) * 2008-12-11 2010-06-21 엘지전자 주식회사 열전도시트를 구비한 냉장고
US20130174598A1 (en) * 2010-09-20 2013-07-11 Lg Electronics Inc. Refrigerator

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