EP2778578B1 - Vacuum insulated door structure and method for the creation thereof - Google Patents
Vacuum insulated door structure and method for the creation thereof Download PDFInfo
- Publication number
- EP2778578B1 EP2778578B1 EP14158611.5A EP14158611A EP2778578B1 EP 2778578 B1 EP2778578 B1 EP 2778578B1 EP 14158611 A EP14158611 A EP 14158611A EP 2778578 B1 EP2778578 B1 EP 2778578B1
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- European Patent Office
- Prior art keywords
- wall
- offset
- conduit
- wall member
- facing surface
- 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.)
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Classifications
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- 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
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- 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
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
- F25D23/126—Water cooler
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- 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
- F25D2201/00—Insulation
- F25D2201/10—Insulation with respect to heat
- F25D2201/14—Insulation with respect to heat using subatmospheric pressure
Definitions
- the invention is in the field of vacuum insulated door panels and methods for creating vacuum insulated door panels for use in refrigerators.
- US 2011/0146325 A1 discloses a refrigerator that includes a door comprising an outer case and a door liner.
- a vacuum insulation panel is disposed between the outer case and an ice bin, provided at the refrigerator door, to insulate a storage compartment, defined by a cabinet included in the refrigerator, from an outside.
- a vacuum insulated door structure and a method for creating an integral vacuum insulated door structure as defined in the independent claims.
- the terms "upper,” “lower,” “right,” “left,” “rear,” “front,” “vertical,” “horizontal,” and derivatives thereof shall relate to the device as oriented in FIG. 1 .
- the device may assume various alternative orientations and step sequences, except where expressly specified to the contrary.
- the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.
- a refrigerator 10 is generally shown.
- the refrigerator 10 can have at least one door 12 operable between open and closed positions, and an interior 14 wherein the door 12 selectively provides access to the interior 14 of the refrigerator 10 when the door 12 is in the open position.
- the refrigerator 10 can also include a cooling loop having an evaporator, a condenser, and/or coolant fluid that can be configured to provide cooling to at least a portion of the door 12.
- a first aspect includes a vacuum insulated door structure 30 that can be disposed within the at least one door 12 of the refrigerator 10.
- the vacuum insulated door structure 30 includes a first wall member 32 having a first perimetrical edge 34 and at least four outer side walls 36 that extend substantially perpendicular from the first perimetrical edge 34 to a perimetrical lip 38.
- the first wall member 32 also includes a first inner facing surface 40 and a first outer facing surface 42.
- the vacuum insulated door structure 30 also includes a second wall member 50 having a second inner facing surface 52 and a second outer facing surface 54, and a second perimetrical edge 56.
- the second perimetrical edge 56 is coupled to the first wall member 32 proximate the perimetrical lip 38.
- At least four inner sidewalls 58 are included in the second wall member 50 and define a second wall opening 60 configured to be distal from at least a portion of the second perimetrical edge 56.
- the at least four inner sidewalls 58 extend from the second wall opening 60 toward the first wall member 32 to a back wall 62.
- the at least four inner sidewalls 58 and the back wall 62 define a second wall offset 64.
- the vacuum insulated door structure 30 can include at least one tubular member 80 that includes first and second conduit ends 82, 84, an inner conduit surface 86 and an outer conduit surface 88.
- the first conduit end 82 is coupled to a first wall conduit opening 90 defined by the first wall member 32 and the second conduit end 84 is coupled to a second wall conduit opening 92 defined by the second wall offset 64.
- the inner conduit surface 86 provides a fluid communication between the first outer facing surface 42 and the second outer facing surface 54.
- the first and second wall members 32, 50 and the at least one tubular member 80 form the vacuum insulated door structure 30 that includes an outside surface 100 and an inside surface 102, wherein the inside surface 102 defines a cavity volume 104 that is hermetically sealed.
- a barrier layer 106 comprising a hermetic barrier film and a heat sealing layer are disposed on at least a portion of the first and second wall members 32, 50 and the tubular member 80.
- a cavity insulation material 108 is also disposed within the cavity volume 104 and the cavity volume 104 is configured to maintain at least partial vacuum within the cavity volume 65.
- the first and second wall members 32, 50 and the at least one tubular member 80 can be made of materials that include, but are not limited to, high impact polystyrene or acrylonitrile butadiene styrene that has been thermally formed into the shape described above. While not preferred, it is understood that the first and second wall members 32, 50 and the at least one tubular member 80 can also be formed by attaching various members together to form the vacuum insulated door structure 30, as described above.
- the first wall member 32 can include at least four offset sidewalls 120 that define a first wall opening 122 configured to be distal from at least a portion of the first perimetrical edge 34, and wherein the at least four offset sidewalls 120 extend substantially orthogonally from the first wall opening 122 to an offset back wall 124, such that the offset inner sidewalls 120 and the offset back wall 124 includes a first wall offset 126.
- the offset back wall 124 of the first offset is disposed proximate the back wall 62 of the second wall offset 64.
- the at least one tubular member 80 is coupled to the first wall member 32 proximate the first wall conduit opening 90 defined by the first wall offset 126, and extends to the second conduit end 84 which is coupled to the second wall member 50 proximate the second wall conduit opening 92, defined by the second wall offset 64.
- the barrier layer 106 disposed on the first and second wall members 32, 50 and the at least one tubular member 80 can include at least one layer of polymeric barrier films and at least one heat sealing layer.
- the one or more polymeric barrier films can include, but are not limited to, ethylene vinyl alcohol co-polymer, or polyvinylidene chloride films.
- the barrier layer 106 can be disposed upon the first and second wall members 32, 50 and the at least one tubular member 80 by thermally forming the barrier layer 106 onto the first and second wall members 32, 50 and the at least one tubular member 80 by methods that include, but are not limited to, laminating, coextruding, or coating the barrier layer 106 onto the first and second wall members 32, 50 and the at least one tubular member 80. Alternatively, these and other methods can be used to dispose the barrier layer 106 onto panels that will be formed into the first and second wall members 32, 50 and the at least one tubular member 80.
- the barrier layer 106 provides a hermetic surface to the first and second wall members 32, 50 and the at least one tubular member 80 to increase the ability of the vacuum insulated door structure 30 to retain a vacuum within the cavity volume 104.
- the barrier layer 106 can be disposed on the first inner facing surface 40 of the first wall member 32, the second inner facing surface 52 of the second wall member 50, and the outer conduit surface 88 of the at least one tubular member 80, whereby the barrier layer 106 is disposed proximate the cavity volume 104 and substantially seals the cavity volume 104. In this manner, the barrier layer 106, being within the cavity volume 104, is substantially protected from damage that can be caused by handling and installation of the vacuum insulated door structure 30 within the refrigerator 10.
- the barrier layer 106 can be disposed on the first outer facing surface 42 of the first wall member 32, the second outer facing surface 54 of the second wall member 50, and the inner conduit surface 86 of the at least one tubular member 80.
- the vacuum insulated door structure 30 can be formed by disposing a perimetrical flange having a first lip and a second lip to the first wall member 32 and the second wall member 50, such that the first lip is coupled to the first wall member 32 proximate the first perimetrical edge 34 and the second lip is coupled to the second wall member 50 proximate the second perimetrical edge 56.
- the at least four outer sidewalls 36 make up the perimetrical flange.
- the cavity insulation material 108 disposed within the cavity volume 104 can be a low thermal conductivity material or polyurethane foam that is disposed into the cavity volume 104.
- the cavity insulation material 108 is disposed within the cavity volume 104 after the first wall member 32 is hermetically sealed to the second wall member 50.
- the cavity insulation material 108 can be an injectable or loose material that can be injected into the cavity volume 104 through at least one port 150.
- the cavity insulation material 108 can be a preformed substantially rigid material, where the preformed shape of the cavity insulation material 108 typically and substantially matches the shape of the cavity volume 104.
- the preformed cavity insulation material 108 is configured to be received by the first inner facing surface 40 of the first wall member 32, and is further configured to receive the second inner facing surface 52 of the second wall member 50.
- the preformed cavity insulation material 108 can also be configured to receive the at least one tubular member 80 and the first and second wall offsets 126, 64. In this manner, the preformed cavity insulation material 108 substantially fills the cavity volume 104 without having to inject the cavity insulation material 108.
- the preformed cavity insulation material 108 can allow the manufacturer to inspect the quality of the cavity insulation material 108 before installation to substantially insure that the cavity insulation material 108 is disposed substantially throughout the cavity volume 104.
- the first wall member 32, the second wall member 50, and the at least one tubular member 80 are hermetically sealed together to form the vacuum insulated door structure 30 and the cavity volume 104 defined therein.
- the method for sealing the cavity volume 104 can vary. The methods used in the various embodiments are sufficient to hermetically seal the cavity volume 104 in order to maintain the desired vacuum within the cavity volume 104 of the vacuum insulated door structure 30. These sealing methods can include, but are not limited to, heat sealing or ultrasonic welding.
- the combination of the polymeric barrier films and the at least one heat sealing layer in conjunction with the method of sealing the cavity volume 104 creates an at least partial vacuum within the core cavity volume 104 that can be maintained for extended periods of time, such as, at least five, ten, or fifteen years.
- the at least one port 150 can be disposed to the first outer facing surface 42 of the first wall member 32.
- the at least one port 150 can include an extruded tube 160 that can be attached to a port opening 162 defined by a portion of the first or second wall members 32, 50.
- the port 150 provides a fluid communication between the outside of the vacuum insulated door structure 30 and the cavity volume 104, so that material can be passed from within the cavity volume 104 to the outside of the vacuum insulated door structure 30, or vice versa.
- the port 150 can be used as a vacuum port 164 to draw out gas 166 that may be present in the cavity volume 104 with the cavity insulation material 108.
- the port 150 can be removed, and the port opening 162 in the first or second wall member 32, 50 can be closed and hermetically sealed to maintain the desired vacuum within the cavity volume 104. It should be understood that in various embodiments, more than one port 150 can be used to extract gas 166 from the cavity volume 104.
- the cavity insulation material 108 is disposed within the cavity volume 104 after the first wall member 32 is hermetically sealed to the second wall member 50.
- at least one injection port 168 can be disposed to the outside surface 100 of the vacuum insulated door structure 30 at the one or more port openings 162 defined therein so that there can be a fluid communication between the outside surface 100 of the vacuum insulated door structure 30 and the cavity volume 104.
- the cavity insulation material 108 can then be injected through the at least one injection port 168 into the cavity volume 104.
- the at least one vacuum port 164 can also be disposed on the outside surface 100 of the vacuum insulated door structure 30 as described above to extract the desired amount of gas 166 from the cavity volume 104, and to aid in the injection of the cavity insulation material 108 throughout the cavity volume 104. Once the desired amount of cavity insulation material 108 is injected into the cavity volume 104, and the desired amount of gas 166 is extracted from the cavity volume 104, the injection port 168 and the vacuum port 164 can be removed, and the port openings 162 closed and hermetically sealed to maintain the desired vacuum within the cavity volume 104.
- the vacuum insulated door structure 30 can be configured to include a module receptacle 190 disposed proximate the first wall offset 126 and the first wall conduit opening 90, such that the module receptacle 190 is in communication with the inner conduit surface 86.
- the module receptacle 190 is also in communication with the cooling loop, wherein the module receptacle 190 is configured to receive at least one cooling module 192 that can be coupled with the cooling loop of the refrigerator 10.
- more than one module receptacle 190 can be defined by the vacuum insulated door structure 30 such that more than one cooling module 192 can be disposed on the vacuum insulated door structure 30 and connected to one or more cooling loops of the refrigerator 10.
- the location of the module receptacles 190 on the vacuum insulated door structure 30 can define the location of various specialty cooling modules 192 that can be placed upon and typically removably mounted to one or more module receptacles 190 (by hand and without the use of tools) of the refrigerator 10.
- examples of cooling modules 192 can include at least one of
- cooling modules 192 having at least one product dispensing function can be placed in the module receptacle 190 proximate the first wall offset 126, such that the cooling module 192 is in fluid communication with the inner conduit surface 86, the second outer facing surface 54, and the second wall offset 64.
- cooled products from the cooling modules 192 having at least one product dispensing function can be disposed from the cooling module 192 through the tubular member 80 and into the second wall offset 64, such that a user of the refrigerator 10 can collect the cooled product as desired.
- more than one cooling module 192 can use the same tubular member 80 as a common conduit for dispensing cooled products into the second wall offset 64.
- two or more tubular members 80 can be implemented to serve two or more corresponding cooling modules 192 to dispense cooled products into the second wall offset 64.
- an ice making module 200 is disposed in the cooling module receptacle 190 proximate the first wall offset 126.
- the ice making module 200 includes an ice container 202 for collecting ice that is made within the ice making module 200 and an impeller 204 for directing the ice collected within the ice container 202 into and through the at least one tubular member 80 and to the second wall offset 64.
- a receptacle insulation material 206 can be disposed within the module receptacle 190 and around the ice making module 200 to insulate the ice making module 200, such that the use of cooling within the cooling module 192 can be substantially maximized.
- the receptacle insulation material 206 can include, but is not limited to, polyurethane foam, rigid insulation, or other insulation material.
- the door 12 of a refrigerator 10 can include a metal clad covering 220 having a finished outer surface 222 and an interior surface 224.
- the metal clad covering 220 also includes a door opening 230 defined by the metal clad covering 220 through which the second wall offset 64 can be accessed.
- the interior surface 224 of the metal clad covering 220 is configured to be disposed on at least a portion of the outside surface 100 of the vacuum insulated door structure 30.
- the finished outer surface 222 of the metal clad covering 220 can have varying finishes that can include, but are not limited to, painted metal, stainless steel, magnetic stainless steel-type finishes, or other metallic finish.
- the interior surface 224 of the metal clad covering 220 defines a door structure receptacle 226 for receiving the outside surface 100 of the vacuum insulated door structure 30.
- the outer surface of the vacuum insulated door structure 30 can include a finished outer surface 222 of the door of the refrigerator 10.
- various indicia, patterns, or colors can be disposed on the outside surface 100 of the vacuum insulated door structure 30.
- the outside surface 100 of the vacuum insulated door structure 30 can include one or more integrated shelves or one or more integrated shelf receptacles for receiving one or more selectively removable shelves for holding items that can be cooled within the interior 14 of the refrigerator 10.
- the cooling loop of the refrigerator 10 can be routed through a hinged portion 228 of the refrigerator 10. In this manner, the main loop can be configured to run through the hinged portion and into the door 12 to the cooling module receptacle 190 of the vacuum insulated door structure 30.
- a conduit for running the cooling loop through the vacuum insulated door structure 30 can be provided through the vacuum insulated door structure 30 or in a space provided between the metal clad covering 220 and the vacuum insulated door structure 30, or both.
- FIG. 14 Another aspect of the refrigerator 10 as illustrated in FIG. 14 includes a method 250 for creating a vacuum insulated door structure 30 for a refrigerator 10.
- a first step 252 in this method 250 includes providing first and second wall members 32, 50 and at least one tubular member 80 as described above.
- This step 252 of the method 250 also includes disposing a barrier layer 106 comprising a hermetic barrier film and a heat simulator onto at least a portion of the first and second wall members 32, 50 and the tubular member 80.
- the next step 254 in the method 250 includes hermetically sealing the first and second wall members 32, 50 and the at least one tubular member 80 together to create and define the cavity volume 104.
- the method 250 also includes the step 256 of disposing a cavity insulation material 108 within the cavity volume 104 defined by the first wall inner facing surface 40, the second wall inner facing surface 52, and the outer conduit surface 88 of the at least one tubular member 80.
- a next step 258 in the method 250 includes extracting gas 166 from the cavity volume 104 through the at least one port 150 disposed on the vacuum insulated door structure 30, wherein the cavity volume 104 is configured to maintain at least partial vacuum within the cavity volume 104.
- the cavity insulation material 108 is disposed within the cavity volume 104 after the first wall member 32 is hermetically sealed to the second wall member 50.
- the method 250 can include the step 256 of injecting the cavity insulation material 108 into the cavity volume 104 through the at least one injection port 168 and into the cavity volume 104.
- the at least one vacuum port 164 is also used to extract gas 166 from the cavity volume 104 to create the desired vacuum within the cavity volume 104.
- the method 250 can also include the step 260 of providing a cooling module 192 and disposing the cooling module 192 within the module receptacle 190 defined by the first wall member 32 proximate the first wall offset 126 and in communication with the inner conduit surface 86 and the second wall offset 64.
- the cooling loop is in fluid communication with the cooling module 192 wherein the cooling loop includes the evaporator, condenser and cooling fluid.
- This step 260 of the method 250 can also include disposing the receptacle insulation material 206 within at least a portion of the module receptacle 190 to surround and insulate the cooling module 192.
- the cooling module 192 can include an ice maker and dispenser and a water dispenser, wherein the ice and water dispensers are in fluid communication with the inner conduit surface 86 and the second wall offset 64, such that a user of the refrigerator 10 can collect cooled products disposed by the ice and water dispensers.
- the method 250 can also include the step 262 of providing a metal clad covering 220 disposing the vacuum insulated door structure 30 within the door structure receptacle 226 of the metal clad covering 220, such that the interior surface 224 of the metal clad covering 220 is proximate the outside surface 100 of the vacuum insulated door structure 30.
- 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 scope of the claims.
Description
- The invention is in the field of vacuum insulated door panels and methods for creating vacuum insulated door panels for use in refrigerators.
-
US 2011/0146325 A1 discloses a refrigerator that includes a door comprising an outer case and a door liner. A vacuum insulation panel is disposed between the outer case and an ice bin, provided at the refrigerator door, to insulate a storage compartment, defined by a cabinet included in the refrigerator, from an outside. - According to the present invention there are provided a vacuum insulated door structure and a method for creating an integral vacuum insulated door structure as defined in the independent claims.
- These and other features, advantages, and aims of the present device will be further understood and appreciated by those skilled in the art upon studying the following specification, claims, and appended drawings.
- The present invention will be further described by way of example with reference to the accompanying drawings in which:-
-
FIG. 1 is a top perspective of a refrigerator containing one embodiment of the vacuum insulated door structure with the door in the open position; -
FIG. 2 is a top perspective view of the refrigerator ofFIG. 1 with the door in the closed position; -
FIG. 3 is a bottom exploded perspective view of one embodiment of the vacuum insulated door structure; -
FIG. 4 is a top perspective of the vacuum insulated door structure ofFIG. 3 ; -
FIG. 5 is a cross-sectional view of the vacuum insulated door structure ofFIG. 4 taken at line V-V; -
FIG. 6 is a front elevational view of the vacuum insulated door structure ofFIG. 3 ; -
FIG. 7 is a rear elevational view of the vacuum insulated door structure ofFIG. 3 ; -
FIG. 8 is a side elevational view of the vacuum insulated door structure ofFIG. 3 ; -
FIG. 9 is a top plan view of the vacuum insulated door structure ofFIG. 3 ; -
FIG. 10 is a bottom plan view of the vacuum insulated door structure ofFIG. 3 ; -
FIG. 11 is an exploded cross-sectional view of the vacuum insulated door structure ofFIG. 5 ; -
FIG. 12 is a cross-sectional view of one embodiment of the vacuum insulated door structure; -
FIG. 13 is a partially exploded top perspective view of the refrigerator ofFIG. 1 ; and -
FIG. 14 is a schematic flow diagram showing a method for creating the vacuum insulated door structure ofFIG. 1 . - For purposes of description herein the terms "upper," "lower," "right," "left," "rear," "front," "vertical," "horizontal," and derivatives thereof shall relate to the device as oriented in
FIG. 1 . However, it is to be understood that the device may assume various alternative orientations and step sequences, except where expressly specified to the contrary. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise. - With respect to
FIG. 1 , arefrigerator 10 is generally shown. In each of these embodiments, therefrigerator 10 can have at least onedoor 12 operable between open and closed positions, and aninterior 14 wherein thedoor 12 selectively provides access to theinterior 14 of therefrigerator 10 when thedoor 12 is in the open position. As will be more fully described below, therefrigerator 10 can also include a cooling loop having an evaporator, a condenser, and/or coolant fluid that can be configured to provide cooling to at least a portion of thedoor 12. - A first aspect, as illustrated in
FIGS. 1-5 , includes a vacuum insulateddoor structure 30 that can be disposed within the at least onedoor 12 of therefrigerator 10. The vacuum insulateddoor structure 30 includes afirst wall member 32 having a firstperimetrical edge 34 and at least fourouter side walls 36 that extend substantially perpendicular from the firstperimetrical edge 34 to aperimetrical lip 38. Thefirst wall member 32 also includes a first inner facingsurface 40 and a first outer facingsurface 42. - As shown in
FIG. 3 , the vacuum insulateddoor structure 30 also includes asecond wall member 50 having a second inner facingsurface 52 and a second outer facingsurface 54, and a secondperimetrical edge 56. The secondperimetrical edge 56 is coupled to thefirst wall member 32 proximate theperimetrical lip 38. At least fourinner sidewalls 58 are included in thesecond wall member 50 and define a second wall opening 60 configured to be distal from at least a portion of the secondperimetrical edge 56. The at least fourinner sidewalls 58 extend from the second wall opening 60 toward thefirst wall member 32 to aback wall 62. The at least fourinner sidewalls 58 and theback wall 62 define asecond wall offset 64. - As shown in
FIGS. 3-5 , the vacuum insulateddoor structure 30 can include at least onetubular member 80 that includes first andsecond conduit ends inner conduit surface 86 and anouter conduit surface 88. Thefirst conduit end 82 is coupled to a first wall conduit opening 90 defined by thefirst wall member 32 and thesecond conduit end 84 is coupled to a second wall conduit opening 92 defined by thesecond wall offset 64. In this manner, theinner conduit surface 86 provides a fluid communication between the first outer facingsurface 42 and the second outer facingsurface 54. - The first and
second wall members tubular member 80 form the vacuum insulateddoor structure 30 that includes anoutside surface 100 and aninside surface 102, wherein theinside surface 102 defines acavity volume 104 that is hermetically sealed. Abarrier layer 106 comprising a hermetic barrier film and a heat sealing layer are disposed on at least a portion of the first andsecond wall members tubular member 80. Acavity insulation material 108 is also disposed within thecavity volume 104 and thecavity volume 104 is configured to maintain at least partial vacuum within the cavity volume 65. - According to one embodiment, the first and
second wall members tubular member 80 can be made of materials that include, but are not limited to, high impact polystyrene or acrylonitrile butadiene styrene that has been thermally formed into the shape described above. While not preferred, it is understood that the first andsecond wall members tubular member 80 can also be formed by attaching various members together to form the vacuum insulateddoor structure 30, as described above. - Referring to the illustrated embodiment, as illustrated in
FIGS. 3 and5 , thefirst wall member 32 can include at least fouroffset sidewalls 120 that define afirst wall opening 122 configured to be distal from at least a portion of the firstperimetrical edge 34, and wherein the at least fouroffset sidewalls 120 extend substantially orthogonally from the first wall opening 122 to anoffset back wall 124, such that the offsetinner sidewalls 120 and theoffset back wall 124 includes afirst wall offset 126. In this embodiment, theoffset back wall 124 of the first offset is disposed proximate theback wall 62 of thesecond wall offset 64. In addition, the at least onetubular member 80 is coupled to thefirst wall member 32 proximate the first wall conduit opening 90 defined by thefirst wall offset 126, and extends to thesecond conduit end 84 which is coupled to thesecond wall member 50 proximate the second wall conduit opening 92, defined by thesecond wall offset 64. - Referring now to
FIGS. 3-5 of the illustrated embodiment, thebarrier layer 106 disposed on the first andsecond wall members tubular member 80 can include at least one layer of polymeric barrier films and at least one heat sealing layer. The one or more polymeric barrier films can include, but are not limited to, ethylene vinyl alcohol co-polymer, or polyvinylidene chloride films. Thebarrier layer 106 can be disposed upon the first andsecond wall members tubular member 80 by thermally forming thebarrier layer 106 onto the first andsecond wall members tubular member 80 by methods that include, but are not limited to, laminating, coextruding, or coating thebarrier layer 106 onto the first andsecond wall members tubular member 80. Alternatively, these and other methods can be used to dispose thebarrier layer 106 onto panels that will be formed into the first andsecond wall members tubular member 80. - In various embodiments, the
barrier layer 106 provides a hermetic surface to the first andsecond wall members tubular member 80 to increase the ability of the vacuum insulateddoor structure 30 to retain a vacuum within thecavity volume 104. Thebarrier layer 106 can be disposed on the first inner facingsurface 40 of thefirst wall member 32, the second inner facingsurface 52 of thesecond wall member 50, and theouter conduit surface 88 of the at least onetubular member 80, whereby thebarrier layer 106 is disposed proximate thecavity volume 104 and substantially seals thecavity volume 104. In this manner, thebarrier layer 106, being within thecavity volume 104, is substantially protected from damage that can be caused by handling and installation of the vacuum insulateddoor structure 30 within therefrigerator 10. In less preferred embodiments, thebarrier layer 106 can be disposed on the first outer facingsurface 42 of thefirst wall member 32, the second outer facingsurface 54 of thesecond wall member 50, and theinner conduit surface 86 of the at least onetubular member 80. - In other alternate embodiments, the vacuum insulated
door structure 30 can be formed by disposing a perimetrical flange having a first lip and a second lip to thefirst wall member 32 and thesecond wall member 50, such that the first lip is coupled to thefirst wall member 32 proximate the firstperimetrical edge 34 and the second lip is coupled to thesecond wall member 50 proximate the secondperimetrical edge 56. In this embodiment, the at least fourouter sidewalls 36 make up the perimetrical flange. - As illustrated in
FIG. 5 , thecavity insulation material 108 disposed within thecavity volume 104 can be a low thermal conductivity material or polyurethane foam that is disposed into thecavity volume 104. According to the present invention, thecavity insulation material 108 is disposed within thecavity volume 104 after thefirst wall member 32 is hermetically sealed to thesecond wall member 50. In addition, thecavity insulation material 108 can be an injectable or loose material that can be injected into thecavity volume 104 through at least oneport 150. In alternate embodiments, thecavity insulation material 108 can be a preformed substantially rigid material, where the preformed shape of thecavity insulation material 108 typically and substantially matches the shape of thecavity volume 104. In such an embodiment, the preformedcavity insulation material 108 is configured to be received by the first inner facingsurface 40 of thefirst wall member 32, and is further configured to receive the second inner facingsurface 52 of thesecond wall member 50. The preformedcavity insulation material 108 can also be configured to receive the at least onetubular member 80 and the first andsecond wall offsets cavity insulation material 108 substantially fills thecavity volume 104 without having to inject thecavity insulation material 108. In addition, the preformedcavity insulation material 108 can allow the manufacturer to inspect the quality of thecavity insulation material 108 before installation to substantially insure that thecavity insulation material 108 is disposed substantially throughout thecavity volume 104. - Referring again to the embodiment illustrated in
FIGS. 3-10 , and as discussed above, thefirst wall member 32, thesecond wall member 50, and the at least onetubular member 80 are hermetically sealed together to form the vacuum insulateddoor structure 30 and thecavity volume 104 defined therein. It should be understood that the method for sealing thecavity volume 104 can vary. The methods used in the various embodiments are sufficient to hermetically seal thecavity volume 104 in order to maintain the desired vacuum within thecavity volume 104 of the vacuum insulateddoor structure 30. These sealing methods can include, but are not limited to, heat sealing or ultrasonic welding. The combination of the polymeric barrier films and the at least one heat sealing layer in conjunction with the method of sealing thecavity volume 104 creates an at least partial vacuum within thecore cavity volume 104 that can be maintained for extended periods of time, such as, at least five, ten, or fifteen years. - Referring now to the illustrated embodiment as illustrated in
FIGS. 4-11 , the at least oneport 150 can be disposed to the first outer facingsurface 42 of thefirst wall member 32. The at least oneport 150 can include anextruded tube 160 that can be attached to aport opening 162 defined by a portion of the first orsecond wall members port 150 provides a fluid communication between the outside of the vacuum insulateddoor structure 30 and thecavity volume 104, so that material can be passed from within thecavity volume 104 to the outside of the vacuum insulateddoor structure 30, or vice versa. - As illustrated in
FIG. 5 , after thecavity volume 104 is sealed together, theport 150 can be used as avacuum port 164 to draw out gas 166 that may be present in thecavity volume 104 with thecavity insulation material 108. Once the desired amount of gas 166 is extracted from thecavity volume 104, theport 150 can be removed, and theport opening 162 in the first orsecond wall member cavity volume 104. It should be understood that in various embodiments, more than oneport 150 can be used to extract gas 166 from thecavity volume 104. - Referring again to the illustrated embodiment as shown in
FIGS. 3 ,5 and11 , thecavity insulation material 108 is disposed within thecavity volume 104 after thefirst wall member 32 is hermetically sealed to thesecond wall member 50. As thecavity insulation material 108 is disposed within thecavity volume 104 after thecavity volume 104 is hermetically sealed, at least oneinjection port 168 can be disposed to theoutside surface 100 of the vacuum insulateddoor structure 30 at the one ormore port openings 162 defined therein so that there can be a fluid communication between theoutside surface 100 of the vacuum insulateddoor structure 30 and thecavity volume 104. Thecavity insulation material 108 can then be injected through the at least oneinjection port 168 into thecavity volume 104. The at least onevacuum port 164 can also be disposed on theoutside surface 100 of the vacuum insulateddoor structure 30 as described above to extract the desired amount of gas 166 from thecavity volume 104, and to aid in the injection of thecavity insulation material 108 throughout thecavity volume 104. Once the desired amount ofcavity insulation material 108 is injected into thecavity volume 104, and the desired amount of gas 166 is extracted from thecavity volume 104, theinjection port 168 and thevacuum port 164 can be removed, and theport openings 162 closed and hermetically sealed to maintain the desired vacuum within thecavity volume 104. - It should be appreciated that a perfect vacuum is not necessary within the hermetically sealed
cavity volume 104. Various levels of gas 166 can remain within thecavity volume 104 without degrading the efficiency or effectiveness of the vacuum insulateddoor structure 30. - Referring now to the embodiment illustrated in
FIG. 12 , the vacuum insulateddoor structure 30 can be configured to include amodule receptacle 190 disposed proximate the first wall offset 126 and the first wall conduit opening 90, such that themodule receptacle 190 is in communication with theinner conduit surface 86. Themodule receptacle 190 is also in communication with the cooling loop, wherein themodule receptacle 190 is configured to receive at least onecooling module 192 that can be coupled with the cooling loop of therefrigerator 10. - In various embodiments, more than one
module receptacle 190 can be defined by the vacuum insulateddoor structure 30 such that more than onecooling module 192 can be disposed on the vacuum insulateddoor structure 30 and connected to one or more cooling loops of therefrigerator 10. The location of themodule receptacles 190 on the vacuum insulateddoor structure 30 can define the location of variousspecialty cooling modules 192 that can be placed upon and typically removably mounted to one or more module receptacles 190 (by hand and without the use of tools) of therefrigerator 10. By way of explanation, and not limitation, examples of coolingmodules 192 can include at least one of - a turbo chill module;
- a fast freeze module;
- a shock freeze module;
- a temperature controlled crisper compartment module;
- a fresh food compartment module;
- an ice making module;
- a heat exchanger module for dispensing cold or chilled water;
- a heat exchanger module for creating cold or chilled water to facilitate its carbonation and dispense a carbonated beverage; and
- an airless cooling module.
- In addition, the cooling
modules 192 having at least one product dispensing function can be placed in themodule receptacle 190 proximate the first wall offset 126, such that thecooling module 192 is in fluid communication with theinner conduit surface 86, the second outer facingsurface 54, and the second wall offset 64. In this manner, cooled products from the coolingmodules 192 having at least one product dispensing function can be disposed from thecooling module 192 through thetubular member 80 and into the second wall offset 64, such that a user of therefrigerator 10 can collect the cooled product as desired. In addition, more than onecooling module 192 can use thesame tubular member 80 as a common conduit for dispensing cooled products into the second wall offset 64. Alternatively, two or moretubular members 80 can be implemented to serve two or morecorresponding cooling modules 192 to dispense cooled products into the second wall offset 64. - As illustrated in the embodiment of
FIG. 12 , anice making module 200 is disposed in thecooling module receptacle 190 proximate the first wall offset 126. Theice making module 200 includes anice container 202 for collecting ice that is made within theice making module 200 and animpeller 204 for directing the ice collected within theice container 202 into and through the at least onetubular member 80 and to the second wall offset 64. Areceptacle insulation material 206 can be disposed within themodule receptacle 190 and around theice making module 200 to insulate theice making module 200, such that the use of cooling within thecooling module 192 can be substantially maximized. Thereceptacle insulation material 206 can include, but is not limited to, polyurethane foam, rigid insulation, or other insulation material. - Referring now to the embodiments of
FIGS. 1 ,2 and13 , thedoor 12 of arefrigerator 10 can include a metal clad covering 220 having a finishedouter surface 222 and aninterior surface 224. The metal clad covering 220 also includes a door opening 230 defined by the metal clad covering 220 through which the second wall offset 64 can be accessed. Theinterior surface 224 of the metal clad covering 220 is configured to be disposed on at least a portion of theoutside surface 100 of the vacuum insulateddoor structure 30. The finishedouter surface 222 of the metal clad covering 220 can have varying finishes that can include, but are not limited to, painted metal, stainless steel, magnetic stainless steel-type finishes, or other metallic finish. Theinterior surface 224 of the metal clad covering 220 defines adoor structure receptacle 226 for receiving theoutside surface 100 of the vacuum insulateddoor structure 30. In various other alternate embodiments, the outer surface of the vacuum insulateddoor structure 30 can include a finishedouter surface 222 of the door of therefrigerator 10. In such an embodiment, various indicia, patterns, or colors, can be disposed on theoutside surface 100 of the vacuum insulateddoor structure 30. - In other various embodiments, the
outside surface 100 of the vacuum insulateddoor structure 30 can include one or more integrated shelves or one or more integrated shelf receptacles for receiving one or more selectively removable shelves for holding items that can be cooled within theinterior 14 of therefrigerator 10. In various other embodiments of therefrigerator 10, the cooling loop of therefrigerator 10 can be routed through a hingedportion 228 of therefrigerator 10. In this manner, the main loop can be configured to run through the hinged portion and into thedoor 12 to thecooling module receptacle 190 of the vacuum insulateddoor structure 30. In still other various embodiments, a conduit for running the cooling loop through the vacuum insulateddoor structure 30 can be provided through the vacuum insulateddoor structure 30 or in a space provided between the metal clad covering 220 and the vacuum insulateddoor structure 30, or both. - Another aspect of the
refrigerator 10 as illustrated inFIG. 14 includes amethod 250 for creating a vacuum insulateddoor structure 30 for arefrigerator 10. Afirst step 252 in thismethod 250 includes providing first andsecond wall members tubular member 80 as described above. Thisstep 252 of themethod 250 also includes disposing abarrier layer 106 comprising a hermetic barrier film and a heat simulator onto at least a portion of the first andsecond wall members tubular member 80. Thenext step 254 in themethod 250 includes hermetically sealing the first andsecond wall members tubular member 80 together to create and define thecavity volume 104. - As illustrated in the embodiment of
FIG. 14 , themethod 250 also includes thestep 256 of disposing acavity insulation material 108 within thecavity volume 104 defined by the first wallinner facing surface 40, the second wallinner facing surface 52, and the outer conduit surface 88 of the at least onetubular member 80. - After the
cavity insulation material 108 is disposed within thecavity volume 104, and thecavity volume 104 is hermetically sealed, anext step 258 in themethod 250 includes extracting gas 166 from thecavity volume 104 through the at least oneport 150 disposed on the vacuum insulateddoor structure 30, wherein thecavity volume 104 is configured to maintain at least partial vacuum within thecavity volume 104. - According to the present invention, the
cavity insulation material 108 is disposed within thecavity volume 104 after thefirst wall member 32 is hermetically sealed to thesecond wall member 50. In addition, and as described above, as thecavity insulation material 108 is disposed within thecavity volume 104 after thecavity volume 104 is hermetically sealed, themethod 250 can include thestep 256 of injecting thecavity insulation material 108 into thecavity volume 104 through the at least oneinjection port 168 and into thecavity volume 104. The at least onevacuum port 164 is also used to extract gas 166 from thecavity volume 104 to create the desired vacuum within thecavity volume 104. - As illustrated in
FIG. 14 , themethod 250 can also include thestep 260 of providing acooling module 192 and disposing thecooling module 192 within themodule receptacle 190 defined by thefirst wall member 32 proximate the first wall offset 126 and in communication with theinner conduit surface 86 and the second wall offset 64. As discussed above, when thecooling module 192 is disposed within themodule receptacle 190, the cooling loop is in fluid communication with thecooling module 192 wherein the cooling loop includes the evaporator, condenser and cooling fluid. Thisstep 260 of themethod 250 can also include disposing thereceptacle insulation material 206 within at least a portion of themodule receptacle 190 to surround and insulate thecooling module 192. As illustrated in the embodiment ofFIG. 12 , thecooling module 192 can include an ice maker and dispenser and a water dispenser, wherein the ice and water dispensers are in fluid communication with theinner conduit surface 86 and the second wall offset 64, such that a user of therefrigerator 10 can collect cooled products disposed by the ice and water dispensers. - As illustrated in
FIG. 14 , themethod 250 can also include thestep 262 of providing a metal clad covering 220 disposing the vacuum insulateddoor structure 30 within thedoor structure receptacle 226 of the metal clad covering 220, such that theinterior surface 224 of the metal clad covering 220 is proximate theoutside surface 100 of the vacuum insulateddoor structure 30. - It will be understood by one having ordinary skill in the art that construction of the described device and other components is not limited to any specific material. Other exemplary embodiments of the device disclosed herein may be formed from a wide variety of materials, unless described otherwise herein.
- For purposes of this disclosure, 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.
- It is also important to note that the construction and arrangement of the elements of the device as shown in the exemplary embodiments is illustrative only. Although only a few embodiments of the present innovations have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited. For example, 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. It should be noted that 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 scope of the claims.
- It will be understood that any described processes or steps within described processes may be combined with other disclosed processes or steps to form structures within the scope of the present device. The exemplary structures and processes disclosed herein are for illustrative purposes and are not to be construed as limiting.
- It is also to be understood that variations and modifications can be made on the aforementioned structures and methods without departing from the concepts of the present device, and further it is to be understood that such concepts are intended to be covered by the following claims unless these claims by their language expressly state otherwise.
- The above description is considered that of the illustrated embodiments only. Modifications of the device will occur to those skilled in the art and to those who make or use the device. Therefore, it is understood that the embodiments shown in the drawings and described above is merely for illustrative purposes and not intended to limit the scope of the device, which is defined by the following claims as interpreted according to the principles of patent law, including the Doctrine of Equivalents.
Claims (14)
- A refrigerator (10) having a vacuum insulated door structure (30) comprising:a first wall member (32) having a first perimetrical edge (34), a first inner facing surface (40) and a first outer facing surface (42);a second wall member (50) having a second inner facing surface (52), a second outer facing surface (54), and a second perimetrical edge (56), wherein the second wall member (50) comprises at least four inner side walls (58) defining a second wall opening (60) distal from at least a portion of the second perimetrical edge (56), and wherein the at least four inner side walls (58) extend from the second wall opening (60) toward the first wall member (32) to a back wall (62), wherein the at least four inner side walls (58) and the back wall (62) define a second wall offset (64);at least one tubular member (80) having first and second conduit ends (82, 84), an inner conduit surface (86) and an outer conduit surface (88), wherein the first conduit end (82) is coupled to a first wall conduit opening (90) defined by the first wall member (32) and the second conduit end (84) is coupled to a second wall conduit opening (92) defined by the second wall offset (64), and wherein the inner conduit surface (86) provides a fluid communication between the first outer facing surface (42) and the second outer facing surface (54), and wherein the first and second wall members (32, 50) and the at least one tubular member (80) form a door structure (30); anda cavity insulation material (108) disposed within a cavity volume (104) defined by an interior volume of the door structure (30), wherein
the first wall member (32) has at least four outer sidewalls (36) that extend substantially perpendicular from the first perimetrical edge (34) and to a perimetrical lip (38), wherein the second perimetrical edge (56) is coupled to the first wall member (32) proximate the perimetrical lip (38);characterised in that:the first wall member (32) has a barrier layer (106) having a hermetic barrier film and a heat sealing layer;the second wall member (50) has a barrier layer (106) having a hermetic barrier film and a heat sealing layer; andthe cavity volume (104) is hermetically sealed, wherein the cavity volume (104) includes an at least partial vacuum, wherein the cavity insulation material (108) is disposed within the cavity volume (104) after the first wall member (32), the second wall member (50) and the at least one tubular member (80) have been sealed together. - The refrigerator (10) of claim 1, wherein the first wall member (32) comprises at least four offset sidewalls (120) defining a first wall opening (122) distal from the first perimetrical edge (34), and wherein the at least four offset sidewalls (120) extend from the first wall opening (122) to an offset back wall (124), wherein the at least four offset sidewalls (120) and the offset back wall (124) include a first wall offset (126).
- A refrigerator (10) having a vacuum insulated door structure (30), the refrigerator (10) comprising:an insulative first wall member (32) having a first perimetrical edge (31), a first inner facing surface (40) and a first outer facing surface (42), wherein the first wall member (32) comprises at least four offset sidewalls (120) defining a first wall opening (122) distal from at least a portion of the first perimetrical edge (34), and wherein the at least four offset sidewalls (120) extend substantially orthogonally from the first wall opening (122) to a first back wall (124), wherein the at least four offset sidewalls (120) and the first backwall (124) include a first wall offset (126);an insulative perimetrical flange having a first lip and a second lip, wherein the first lip is coupled to the first wall member (32) proximate the first perimetrical edge (34);an insulative second wall member (50) having a second inner facing surface (52), a second outer facing surface (54), and a second perimetrical edge (56) coupled to the perimetrical flange proximate the second lip, wherein the insulative second wall member (50) comprises at least four inner sidewalls (58) defining a second wall opening (60) distal from at least a portion of the second perimetrical edge (56), and wherein the at least four inner sidewalls (58) extend from the second wall opening (60) toward the first wall member (32) to a second back wall (62), wherein the at least four inner sidewalls (58) and the second back wall (62) include a second wall offset (64) that is disposed proximate the first wall opening (122);an insulative tubular member (80) having first and second conduit ends, an inner conduit surface, and an outer conduit surface, wherein the first conduit end is coupled to the first wall member (32) proximate a first wall conduit opening (90) that is defined by the first wall offset (122); andthe second conduit end is coupled to the insulative second wall member (50) proximate a second wall conduit opening (92) that is defined by the second wall offset (64); and wherein the inner conduit surface provides a fluid communication between the first wall outer facing surface and the second wall outer facing surface, and whereinthe first and second wall members (32, 50), the perimetrical flange, and the tubular member (80) form a door structure (30);a barrier layer (106) comprising a hermetic barrier film and a heat sealing layer is disposed on at least a portion of the first and second wall members (52, 50), the perimetrical flange, and the tubular member (80); anda cavity insulation material (108) disposed within a cavity volume (104) defined by the first inner facing surface (40) of the first wall member (32), the second inner facing surface (52) of the second wall member (50), the perimetrical flange, and the outer conduit surface (88), wherein the cavity insulation material (108) is disposed within the cavity volume (104) after the first wall member (32), the second wall member (50) and the at least one tubular member (80) have been sealed together, wherein the cavity volume (104) is hermetically sealed and is configured to maintain an at least partial vacuum within the cavity volume (104).
- The refrigerator (10) of claim 1, 2 or 3 further comprising:
a module receptacle defined at least partially by the first wall member (32) or offset (32, 122) and in communication with the inner conduit surface (86), wherein the module receptacle is configured to receive at least one cooling module configured to dispense a cooled materialthrough the at least one tubular member (80) and into the second wall offset (64). - The refrigerator (10) according to any one of the preceding claims further comprising:
a metal clad covering having an interior surface, wherein the interior surface is disposed to at least a portion of an exterior surface of the door structure (30). - The refrigerator (10) of claim 5 wherein the metal clad covering has a finished outer surface.
- The refrigerator (10) according to any one of the preceding claims, wherein the cavity insulation material (108) is polyurethane foam that isdisposed within or injected into the cavity volume (104) via at least one port disposed on the door structure (30).
- The refrigerator (10) of claim 4 or any claim dependent thereon further comprising:
at least one cooling module coupled with the module receptacle and configured to be in fluid communication with the inner conduit surface (86), wherein each at least one cooling module is in fluid communication with a cooling loop having an evaporator, a condenser, and a coolant fluid. - The refrigerator (10) of claim 8 wherein polyurethane foam is disposed within at least a portion of the module receptacle about the cooling module.
- The refrigerator (10) of claim 9, wherein the at least one cooling module includes an ice maker and dispenser and a water dispenser, wherein the ice and water dispensers are in fluid communication with the inner conduit surface (86) and the second wall offset (64).
- A method for creating an integral vacuum insulated door structure (30) comprising the steps of:providing a first wall member (32) having a first perimetrical edge (34), at least four outer sidewalls (36) that extend substantially perpendicular from the first perimetrical edge (34) to a perimetrical lip (38), a barrier layer (106) having a hermetic barrier film and a heat sealing layer, a first inner facing surface (40), and a first outer facing surface (42), wherein the first wall member (32) comprises at least four offset sidewalls (120) defining a first wall opening (122) distal from at least a portion of the first perimetrical edge (34), and wherein the at least four offset sidewalls (120) extend substantially orthogonally from the first wall opening (122) to a first back wall (124), wherein the at least four offset sidewalls (120) and the first back wall (124) include a first wall offset (126);providing a second wall member (50) having a second inner facing surface (52), a second outer facing surface (54), and a second perimetrical edge (56) disposed proximate the perimetrical lip (38), wherein the second wall member (50) comprises at least four inner sidewalls (58) defining a second wall opening (60) distal from at least a portion of the second perimetrical edge (56), a barrier layer (106) having a hermetic barrier film and a heat sealing layer, and wherein the at least four inner sidewalls (58) extend from the second wall opening (60) toward the first wall member (32) to a back wall (62), wherein the at least four sidewalls (58) and the back wall (62) define a second wall offset (64);providing a tubular member (80) having first and second conduit ends (82, 84), an inner conduit surface (86) and an outer conduit surface (88), wherein the first conduit end (82) is disposed to a first wall conduit opening (90) defined by the first wall member (32) and the second conduit end (84) is disposed to a second wall conduit opening (92) defined by the second wall offset (64), and wherein the inner conduit surface (86) provides a fluid communication between the first outer facing surface (42) and the second outer facing surface (54);disposing a cavity insulation material (108) within a cavity volume (104) defined by the first inner facing surface (40) of the first wall member (32), the second inner facing surface (52) of the second wall member (50), and the outer conduit surface (88) by injecting polyurethane foam into the cavity volume (104) via the at least one port after the first and second wall members (32, 50) and the tubular member (80) have been hermetically sealed together, wherein the at least one port includes at least one injection port through which the polyurethane foam is injected, and wherein the at least one port includes one vacuum port through which the gas is extracted from the cavity volume (104); andextracting gas from the cavity volume (104) via at least one port disposed on the first wall (32) member proximate a port opening defined by the first wall member (32), wherein the cavity volume (104) is configured to maintain an at least partial vacuum within the cavity volume (104).
- The method of claim 11, wherein the door structure (30) includes a module receptacle at least partially defined by the first wall offset (126) and in communication with the innerconduit surface (86), wherein the module receptacle is configured to receive a cooling module.
- The method of claim 11 or 12 further comprising the steps of:providing a metal clad covering having an interior surface; anddisposing the metal clad covering to at least a portion of an exterior of the vacuum insulated door structure (30) such that the interior surface of the metal clad covering is proximate the vacuum insulated door structure (30).
- The method of claim 12 or any claim dependent thereon further comprising the step of:providing a cooling module;disposing the cooling module within the module receptacle, wherein the cooling module is configured to be in fluid communication with the inner conduit surface (86),providing a cooling loop in fluid communication with the cooling module, wherein the cooling loop includes an evaporator, a condenser, and a coolant fluid; anddisposing polyurethane foam within at least a portion of the module receptacle about the cooling module, optionally wherein the at least one cooling module includes an ice maker and dispenser and a water dispenser, wherein the ice and water dispensers are in fluid communication with the inner conduit surface (86) and the second wall offset (64).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/833,696 US9038403B2 (en) | 2012-04-02 | 2013-03-15 | Vacuum insulated door structure and method for the creation thereof |
Publications (3)
Publication Number | Publication Date |
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EP2778578A2 EP2778578A2 (en) | 2014-09-17 |
EP2778578A3 EP2778578A3 (en) | 2014-10-29 |
EP2778578B1 true EP2778578B1 (en) | 2019-11-27 |
Family
ID=50241173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP14158611.5A Active EP2778578B1 (en) | 2013-03-15 | 2014-03-10 | Vacuum insulated door structure and method for the creation thereof |
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EP (1) | EP2778578B1 (en) |
BR (1) | BR102014005921B1 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5950395A (en) * | 1995-06-20 | 1999-09-14 | Sanyo Electric Co., Ltd. | Heat insulating structure and production process thereof |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4745015A (en) * | 1981-09-30 | 1988-05-17 | The Dow Chemical Company | Thermal insulating panel |
CA2152833A1 (en) * | 1994-07-06 | 1996-01-07 | Timothy A. Neeser | Vacuum insulation panel and method for manufacturing |
US5918478A (en) * | 1996-08-30 | 1999-07-06 | Vesture Corporation | Insulated chest and method |
KR100860645B1 (en) * | 2007-05-04 | 2008-09-26 | 엘지전자 주식회사 | Refrigerator and steel plate of door for refrigerator and manufacturing method thereof |
EP3995768A1 (en) * | 2009-12-22 | 2022-05-11 | LG Electronics, Inc. | Refrigerator |
US8986483B2 (en) * | 2012-04-02 | 2015-03-24 | Whirlpool Corporation | Method of making a folded vacuum insulated structure |
-
2014
- 2014-03-10 EP EP14158611.5A patent/EP2778578B1/en active Active
- 2014-03-13 BR BR102014005921-0A patent/BR102014005921B1/en not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5950395A (en) * | 1995-06-20 | 1999-09-14 | Sanyo Electric Co., Ltd. | Heat insulating structure and production process thereof |
Also Published As
Publication number | Publication date |
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BR102014005921A2 (en) | 2015-06-23 |
EP2778578A2 (en) | 2014-09-17 |
EP2778578A3 (en) | 2014-10-29 |
BR102014005921B1 (en) | 2022-02-01 |
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