EP2762813A2 - Système de refroidissement compact dans la porte pour réfrigérateurs domestiques - Google Patents

Système de refroidissement compact dans la porte pour réfrigérateurs domestiques Download PDF

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Publication number
EP2762813A2
EP2762813A2 EP14151997.5A EP14151997A EP2762813A2 EP 2762813 A2 EP2762813 A2 EP 2762813A2 EP 14151997 A EP14151997 A EP 14151997A EP 2762813 A2 EP2762813 A2 EP 2762813A2
Authority
EP
European Patent Office
Prior art keywords
refrigerator
door
compartment
cooling system
cabinet
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP14151997.5A
Other languages
German (de)
English (en)
Inventor
Douglas D. Leclear
Andrew D. Litch
Guolian Wu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whirlpool Corp
Original Assignee
Whirlpool Corp
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
Application filed by Whirlpool Corp filed Critical Whirlpool Corp
Publication of EP2762813A2 publication Critical patent/EP2762813A2/fr
Withdrawn legal-status Critical Current

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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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/06—Several compression cycles arranged in parallel
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/002—Details for cooling refrigerating machinery
    • F25D2323/0027—Details for cooling refrigerating machinery characterised by the out-flowing air
    • F25D2323/00274—Details for cooling refrigerating machinery characterised by the out-flowing air from the front bottom
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/14—Refrigerator multi units
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/16—Convertible refrigerators

Definitions

  • the present invention generally relates to a compact cooling system for a refrigerator, and more specifically, to an in-the-door compact cooling system for domestic refrigerators.
  • a refrigerator in one aspect of the present invention, includes a cabinet defining a refrigerator compartment and a freezer compartment.
  • a refrigerator door is operably coupled with the cabinet proximate the refrigerator compartment.
  • a freezer door is operably coupled with the cabinet proximate the refrigerator compartment.
  • a first cooling system is disposed in the refrigerator door. The first cooling system maintains a temperature of the refrigerator compartment at a first temperature.
  • a second cooling system is disposed in the freezer door. The second cooling system maintains the freezer compartment at a second temperature that is different than the first temperature.
  • a refrigerator in another aspect of the present invention, includes a cabinet defining a refrigerator compartment and a freezer compartment.
  • a door is pivotally coupled with the cabinet.
  • a first cooling system is disposed in the door and is in fluid communication with the refrigerator compartment.
  • a second cooling system is disposed in the door and is in fluid communication with the freezer compartment.
  • a refrigerator in yet another aspect of the present invention, includes a cabinet defining a refrigerator compartment and a freezer compartment.
  • a door assembly is coupled with the cabinet.
  • a cooling system is disposed in the door assembly and is in fluid communication with the refrigerator compartment and the freezer compartment.
  • An ice maker is disposed in the door proximate the cooling system.
  • reference numeral 10 generally designates a refrigerator having a cabinet 12 defining a refrigerator compartment 14 and a freezer compartment 16.
  • a door 18 is coupled with the cabinet 12.
  • a cooling system 20 is disposed in the door 18 and is in fluid communication with the refrigerator compartment 14 and the freezer compartment 16.
  • a dividing wall 22 is removably coupled with the cabinet 12 and extends between the refrigerator compartment 14 and the freezer compartment 16. The dividing wall 22 is relocatable within the cabinet 12 to change a relative volume of the refrigerator compartment 14 and the freezer compartment 16.
  • the in-the-door cooling system 20 is generally designed for use in side-by-side refrigeration models ( FIG. 1A ), top freezer models ( FIG. 1B ), and French-door models with bottom freezers ( FIG. 1C ).
  • FIG. 1A side-by-side refrigeration models
  • FIG. 1B top freezer models
  • FIG. 1C French-door models with bottom freezers
  • the in-the-door cooling systems 20 for use with these refrigeration models are configured to cool the refrigerator compartment 14 and freezer compartment 16 of the refrigerator 10, regardless of the size and shape of the door 18.
  • various ventilation and cooling pathways may be utilized inside the cabinet 12 to properly cool fresh foods and frozen foods located inside the refrigerator compartment 14 and the freezer compartment 16, respectively.
  • the door 18 of the refrigerator 10 may be pivotally coupled to the refrigerator 10, positioned on drawer slides, etc.
  • the door 18 and cabinet 12 each include an exterior or outer wrapper 40 configured to engage an interior or inner liner 42.
  • the in-the-door cooling system 20 is disposed between the exterior wrapper 40 and the interior liner 42.
  • the exterior wrapper 40 protects the exterior portion of the door 18, as well as the cabinet 12, and may be constructed of a painted metal, stainless steel, etc.
  • the door 18 includes a frame 41 that supports the exterior wrapper 40 and the interior liner 42.
  • the exterior wrapper 40 and the interior liner 42 define a cavity or a utility space 43 configured to house the cooling system 20.
  • the cooling system 20 may be disposed in a fairly shallow chamber or an enlarged chamber proximate a bottom wall of the door 18.
  • the enlarged chamber may be at least partially defined by an enlarged protrusion on the inner liner 42.
  • the utility space 43 may include an ice dispenser 45 that receives ice from an ice maker through an ice chute.
  • a gasket 49 is positioned around the door 18 between the exterior wrapper 40 and the interior liner 42.
  • the cooling system 20 includes a compressor 44, an evaporator 46, a condenser 48, and a capillary tube.
  • the evaporator 46 is partially exposed to at least one of the refrigerator compartment 14 and the freezer compartment 16 to chill fresh foods or frozen foods, respectively.
  • the evaporator 46 is in communication with a discharge vent 47 that discharges cool air from around the evaporator 46 to the refrigerator compartment 14, the freezer compartment 16, or both.
  • a fan 52 may be positioned proximate the evaporator 46 near the discharge vent 47 to blow cool air across the evaporator 46 into one or both of the refrigerator compartment 14 and the freezer compartment 16.
  • the cooling system 20 is disposed in the door 18, the overall thickness of the door 18 is increased.
  • sufficient insulation and sound dampening materials may be disposed inside the door 18 to minimize operating noises coming from the compressor 44, the condenser 48, etc. when the in-the-door cooling system 20 is activated, and also to minimize any heat gain that could be passed from the in-the-door cooling system 20 to the refrigerator compartment 14 or the freezer compartment 16.
  • the cooling system 20 is generally designed to be disposed solely in the door 18 of the refrigerator 10.
  • the cooling system 20 is configured to be in fluid communication with the refrigerator compartment 14 and the freezer compartment 16. Further, the cooling system 20 is designed to maintain the temperature of the refrigerator compartment 14 at a different temperature than the freezer compartment 16, as discussed in detail herein.
  • a vacuum insulation panel 60 is disposed between the evaporator 46 and the condenser 48.
  • the vacuum insulation panel 60 provides increased insulation preventing any thermal exchange between the evaporator 46 and the condenser 48 when the in-the-door cooling system 20 is operating.
  • a warm air discharge is disposed below a bottom portion of the door 18 to allow heat to escape from the in-the-door cooling system 20.
  • air is generally drawn into a top portion of the door 18 past the condenser 48.
  • the air is drawn past the condenser 48 to cool the condenser 48.
  • a refrigerant is passed from the condenser 48 from a pump through an expansion device.
  • the refrigerant cools and is passed through the evaporator 46.
  • the cool air defined by arrows 66 proximate the evaporator 46 flows into or is blown into the refrigerator cabinet 12. Consequently, the refrigerator cabinet 12 is cooled.
  • the air defined by arrows 68 that is drawn into the door 18 past the condenser 48 is heated by the condenser 48 and blown out by a fan 69 through a warm air discharge 70 at a bottom portion 72 of the door 18. This cycle repeats until a satisfactory temperature inside the refrigerator cabinet 12 has been met.
  • cool air passes from the evaporator 46 through a channel 80 into the freezer compartment 16.
  • a regulating air vent 82 allows cool air from the freezer compartment 16 to enter into the refrigerator compartment 14.
  • warm air defined by arrows 83 is drawn through a lower regulating air vent 84 in the bottom portion of the refrigerator compartment 14. The warm air is drawn back into the in-the-door cooling system 20 past the evaporator 46 and cooled again. The same air is ultimately discharged again through the channel 80 into the freezer compartment 16.
  • the regulating air vents 82, 84 are operably coupled with a thermostat or thermistor that measures the temperature in the freezer compartment 16 and the refrigerator compartment 14.
  • the door 18 includes a warm air discharge fan 90 coupled with the compressor 44 and disposed in the bottom portion of the door 18.
  • the condenser 48 is positioned above the compressor 44 and the evaporator 46 is disposed above the condenser 48.
  • the in-the-door cooling system 20 and the refrigerator cabinet 12 are generally designed to discharge air from the refrigerator compartment 14 into the door 18 past the evaporator 46.
  • the air to be cooled is drawn through an inlet 91 past the evaporator 46 in an upper direction to three cool air discharge sites or outlets 92, 94, 96 at various heights in the interior liner 42 of the freezer compartment 16.
  • the freezer compartment 16 As the cool air is discharged into the freezer compartment 16, the freezer compartment 16 is cooled. It is contemplated that a ventilation system, as generally set forth in FIGS. 5 and 6 , may be utilized to convey cooled air from the freezer compartment 16 to the refrigerator compartment 14 to cool the contents in the refrigerator compartment 14. As the contents of the refrigerator 10 warm the cool air in the refrigerator compartment 14, the warm air is discharged again past the evaporator 46 and the process repeats.
  • a ventilation system as generally set forth in FIGS. 5 and 6 , may be utilized to convey cooled air from the freezer compartment 16 to the refrigerator compartment 14 to cool the contents in the refrigerator compartment 14. As the contents of the refrigerator 10 warm the cool air in the refrigerator compartment 14, the warm air is discharged again past the evaporator 46 and the process repeats.
  • the door 18 also includes an ice maker 100 and an ice bin 102.
  • the ice maker 100 is disposed above the in-the-door cooling system 20.
  • the ice bin 102 is also disposed above the in-the-door cooling system 20, but is also disposed below the ice maker 100. Accordingly, ice can be made in the ice maker 100 and discharged into the ice bin 102 before delivery to an ice and water dispenser 104 and to a user.
  • the compressor 44, the condenser 48, and the evaporator 46 of the in-the-door cooling system 20 are arranged as set forth in FIGS. 7-9 , but convey cool air past the ice and water dispenser 104 to one or more of the discharge sites 92, 94, 96 that extend through the interior liner 42 of the refrigerator door 18.
  • power may be routed into the refrigerator 10, through a hinge assembly that connects the refrigerator 10 to the door 18 where the power supply is used to power the in-the-door cooling system 20.
  • the door 18 may include a separate power supply that feeds from the door 18 directly to a power source.
  • the power source does not have to be obtained from the refrigerator 10 directly, but instead from a different power source, such as a home outlet.
  • the in-the-door cooling system 20 is used in conjunction with a moveable divider 120 that allows a user to customize the total available volume in the refrigerator compartment 14 and the freezer compartment 16.
  • a dividing wall 122 is generally designed to abut a rear wall 124 of the refrigerator cabinet 12, as well as a forward door abutment member 126.
  • the forward door abutment member 126 is stationary inside the cabinet 12 and does not move with the dividing wall 122.
  • the dividing wall 122 can be positioned in a substantially central location, providing relatively equal volume between the refrigerator compartment 14 and the freezer compartment 16. Alternatively, as depicted in FIG.
  • the dividing wall 122 can be moved to a second alternate location that decreases the volume in the freezer compartment 16 and increases the volume in the refrigerator compartment 14.
  • the dividing wall 122 can be moved to yet another position that increases the volume of the freezer compartment 16 while minimizing the volume of the refrigerator compartment 14.
  • the dividing wall 122 allows the user to customize a desired volume of space provided in the freezer compartment 16 and the refrigerating compartment 14.
  • a moveable divider 130 includes both a dividing wall 131 and a forward door abutment member 132, which are moveable to allow customization of the volume of space in the refrigerator compartment 14 and the freezer compartment 16.
  • the dividing wall 131 seals the refrigerator compartment 14 and the freezer compartment 16 by abutting a rear wall 134 of the cabinet 12 and the forward door abutment member 132 in any of a variety of positions.
  • sealing gaskets 49 are disposed on the door 18 and that the forward door abutment member 132 has a substantially planar surface that allows for abutment of the gaskets 49 against the forward door abutment member 132 to seal the refrigerator compartment 14 and the freezer compartment 16.
  • the forward door abutment member 132 may be moveable independent of the dividing wall 131. Accordingly, the forward door abutment member 132 may be moved to a position to minimize the space in the freezer compartment 16, and at the same time, the dividing wall 131 may be moved further into the freezer compartment 16 ( FIG. 14B ) to minimize the overall volume of the freezer compartment 16 to an even greater extent than is available in the embodiment discussed above with regard to FIGS. 13 and 13A .
  • a moveable divider 150 includes a vertically adjustable dividing wall 151 that is adapted for adjustment between a rear wall 156 of the cabinet 12 of the refrigerator 10 and a forward door abutment member 154.
  • the forward door abutment member 154 remains stationary and extends across the refrigerator 10 from a first side wall to a second side wall of the refrigerator cabinet 12 and to the rear wall 156.
  • the dividing wall 151 is vertically moveable between a variety of upper and lower positions to increase or decrease the relative volume of the refrigerator compartment 14 and the freezer compartment 16. For example, as illustrated in FIG. 15A , the dividing wall 151 may be moved to a lower position to minimize the overall volume in the freezer compartment 16 while maximizing the overall volume in the refrigerator compartment 14.
  • a moveable divider 160 includes a forward door abutment member 162 and a dividing wall 164 for use in a refrigerator 10 that has a bottom mount freezer.
  • the dividing wall 164 abuts and seals against the forward door abutment member 162 and a rear wall 166 of the cabinet 12.
  • the moveable divider 160 is adjustable such that the relative volume of the refrigerator compartment 14 and the freezer compartment 16 may be adjusted. For example, as illustrated in FIG. 16A , the forward door abutment member 162 and the dividing wall 164 may be moved together to a lower position to minimize the volume in the freezer compartment 16 and to maximize the volume in the refrigerator compartment 14. Alternatively, as shown in FIG.
  • the forward door abutment member 162 may be lowered to the lowermost position available to the forward door abutment member 162, and at the same time, the dividing wall 164 may be moved to a lower position on the forward door abutment member 162 to minimize the volume of the freezer compartment 16 to a greater extent. Accordingly, the overall volume of the refrigerator compartment 14 is increased significantly.
  • a first cooling system is provided in the refrigerator door.
  • the first cooling system maintains a temperature of the refrigerator compartment 14 at a first temperature.
  • a second cooling system is disposed in the freezer door.
  • the second cooling system maintains the freezer compartment 16 at a second temperature that is different than the first temperature of the refrigerator compartment 14. It is likely that the temperature in the freezer compartment 16 will be maintained at a temperature lower than that of the refrigerator compartment 14.
  • This assembly will most likely be used with a French door refrigerator construction having a lower freezer cabinet that is pivotally or slidably connected with the refrigerator 10. Alternatively, this configuration may be used with a side-by-side refrigerator construction.
  • the components disposed in the freezer door and the refrigerator door may be similar or identical components that operate at different temperatures.
  • the components disposed in the refrigerator door and the freezer door may be different. The remaining features and components discussed herein may be applied in both the first and second cooling systems, as will be appreciated by one having ordinary skill in the art.
  • first and second cooling systems disposed in the refrigerator door 18 and the freezer door, respectively can include at least one common component.
  • the common component could be any of the compressor 44, the evaporator 46, condenser 48, capillary tube, etc.
  • the evaporator 46 is shared by the first and second cooling systems and is at least partially exposed in the refrigerator cabinet 12. Alternatively, the evaporator 46 may be exposed in the freezer compartment 16.
  • this system may take on a variety of different constructions.
  • the examples set forth herein are provided as illustrative embodiments only. Other manners of conveying the warm air from the refrigerator compartment back to the in-the-door cooling system may also be employed.
  • the term "coupled” in all of its forms, couple, coupling, coupled, etc. generally means the joining of two components (electrical or mechanical) directly or indirectly to one another. Such joining may be stationary in nature or movable in nature. Such joining may be achieved with the two components (electrical or mechanical) and any additional intermediate members being integrally formed as a single unitary body with one another or with the two components. Such joining may be permanent in nature or may be removable or releasable in nature unless otherwise stated.
  • elements shown as integrally formed may be constructed of multiple parts or elements shown as multiple parts may be integrally formed, the operation of the interfaces may be reversed or otherwise varied, the length or width of the structures and/or members or connector or other elements of the system may be varied, the nature or number of adjustment positions provided between the elements may be varied.
  • the elements and/or assemblies of the system may be constructed from any of a wide variety of materials that provide sufficient strength or durability, in any of a wide variety of colors, textures, and combinations. Accordingly, all such modifications are intended to be included within the scope of the present innovations. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the desired and other exemplary embodiments without departing from the spirit of the present innovations.

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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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Refrigerator Housings (AREA)
EP14151997.5A 2013-02-04 2014-01-21 Système de refroidissement compact dans la porte pour réfrigérateurs domestiques Withdrawn EP2762813A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/758,247 US20140216095A1 (en) 2013-02-04 2013-02-04 In-the-door compact cooling system for domestic refrigerators

Publications (1)

Publication Number Publication Date
EP2762813A2 true EP2762813A2 (fr) 2014-08-06

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EP14151997.5A Withdrawn EP2762813A2 (fr) 2013-02-04 2014-01-21 Système de refroidissement compact dans la porte pour réfrigérateurs domestiques

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* Cited by examiner, † Cited by third party
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