NL2012113C2 - A galley container and a cooling element to cool the interior of the galley container. - Google Patents

A galley container and a cooling element to cool the interior of the galley container. Download PDF

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Publication number
NL2012113C2
NL2012113C2 NL2012113A NL2012113A NL2012113C2 NL 2012113 C2 NL2012113 C2 NL 2012113C2 NL 2012113 A NL2012113 A NL 2012113A NL 2012113 A NL2012113 A NL 2012113A NL 2012113 C2 NL2012113 C2 NL 2012113C2
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NL
Netherlands
Prior art keywords
shell
cooling element
kitchen container
board kitchen
container
Prior art date
Application number
NL2012113A
Other languages
Dutch (nl)
Inventor
Marco Gerardus Bernardus Kramer
Adrien Eric Martin Bernard Girard
Ronald Verweij
Original Assignee
Driessen Aircraft Interior Systems Europ B V
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 Driessen Aircraft Interior Systems Europ B V filed Critical Driessen Aircraft Interior Systems Europ B V
Priority to NL2012113A priority Critical patent/NL2012113C2/en
Priority to CN201580005197.0A priority patent/CN105939931A/en
Priority to SG11201605871UA priority patent/SG11201605871UA/en
Priority to PCT/NL2015/050035 priority patent/WO2015108422A1/en
Priority to EP15702596.6A priority patent/EP3097015B1/en
Application granted granted Critical
Publication of NL2012113C2 publication Critical patent/NL2012113C2/en

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B31/00—Service or tea tables, trolleys, or wagons
    • A47B31/02—Service or tea tables, trolleys, or wagons with heating, cooling or ventilating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
    • B64D11/0007—Devices specially adapted for food or beverage distribution services
    • 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
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
    • F25D3/125—Movable containers
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B31/00—Service or tea tables, trolleys, or wagons
    • A47B2031/002—Catering trolleys

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Description

A GALLEY CONTAINER AND A COOLING ELEMENT TO COOL THE INTERIOR OF THE GALLEY CONTAINER
Field of the invention
The invention relates to a galley container, in particular a galley container for an aircraft. Additionally, the invention relates to a cooling element to cool the interior of the galley container. Furthermore, the invention relates to an assembly of such a galley container and such a cooling element.
Background of the invention
During short or long journeys in a vehicle, in particular an aircraft, passengers are usually provided with at least a beverage or a snack. For this purpose, food products are carried on board of the vehicle, for example an airplane, in galley containers that can be stored in the onboard galleys. The galley container can be a galley trolley provided with wheels for transportation. To be servable, food products should be kept at a temperature less than 8°C, preferably below 5°C, until they are served, to prevent spoilage. In case the temperature of the food is at a temperature above 8°C, the food will have to be distributed within a very short time period to be able to keep up with health regulations.
Keeping food at a temperature at 8°C, preferably below 5°C, is particularly problematic on long haul flights of 5-7 hours or longer. Even if the galley containers and their content are cool upon loading of the galley containers onboard of the aircraft, the interior of the galley containers and their contents will usually have reached a temperature above 8°C after a few hours or even less time. Food products that are still within the galley container will have to be disposed of, due to spoilage.
Galley containers have therefore been provided with all sorts of equipment to be able to cool their interior and content for longer periods of time. Active cooling using an active cooling element within the galley container requires electrical power, such as an electrical connection to the aircraft electronic system or a built-in electrical storage, e.g. a battery. Active cooling from outside, for instance by an active cooling element in the galley itself during storage of the galley container, will require a cooling system connected to the electronic system of the aircraft.
The above-mentioned active cooling methods have the disadvantage that electricity is needed for the cooling element to cool the galley container and its contents. In situations where electricity is not available, for instance if the aircraft’s electrical system is shut down, or is defect, or if the battery is empty, cooling will not be possible and the temperature of the food product will rise, causing spoilage of the food products.
Another method of cooling a galley container is the use of passive cooling, i.e. cooling without the need of electricity. The passive refrigeration and preservation at serving temperature of food products and beverages transported in in-flight galley containers generally takes place by means of carbon dioxide ice, or dry ice, in a sheet or pellet form. As a refrigerant, carbon dioxide ice is very effective, but is often an uneven substance that rapidly chills products and rapidly evaporates.
International patent document W02012/056086 describes a refrigerator unit for an aircraft comprising a casing manufactured from aluminium and foamed polypropylene to which an aluminium L-shaped plate acting as a thermal conductor is attached. The casing insulates dry ice and is covered by one leg of the L-shaped plate. As the casing and the L-shaped plate are slid into a galley container, the second leg of the L-shaped plate acts as a refrigerating part to the rear and the lower parts of the galley container. A disadvantage of the above-described refrigerator unit is that the refrigerating part of the L-shaped plate forms an extra separation within the interior of the galley container. Usually a galley container can be accessed in its full length from both the rear and the front side such that the galley container does not have to be fully turned in the limited space available in planes to be able to reach all of the interior. By inserting a refrigerator unit according to the prior art, either the front or rear side access openings are blocked by the refrigerating part of the L-shaped part. Furthermore, if the refrigerating part is located halfway the length of the galley container, the passage of trays from front to back or vice versa is blocked.
Additionally, the above described passive refrigerator unit, but also any active cooling element, will take up valuable space within the galley container, leaving less space for food products or any other contents of the galley container. A refrigerator unit that combines a relatively small volume with passive cooling of the interior of the galley container would be desired.
It would therefore be desirable to provide an alternative cooling element to passively control cooling of food product and/or the interior of a galley container that alleviates at least some of the perceived inconveniences of the prior art.
Summary of the invention
According to the invention there is provided a galley container for an aircraft, comprising a first shell having a circumferential rim defining an opening for access to an interior of the galley container, a second shell within the first shell, the second shell having a further circumferential rim, wherein each shell comprises a roof element, a floor element and at least two sidewalls. The galley container further comprises a thermally insulating layer, thermally insulating the second shell from an exterior of the galley container, a receiving portion for receiving a cooling element, which receiving portion is provided within the first shell, and at least one door provided at the opening to close the galley container in a closed position of the door, wherein the second shell and the receiving portion are provided with a thermal connection such that heat is transferrable between the receiving portion and the interior of the galley via the second shell.
The first shell is an outer shell, but not necessary an outermost shell. The second shell is an inner shell, but not necessary an innermost shell. The thermally insulating layer can be provided between the first and second shell. Alternatively, the first shell and the thermally insulating layer can be integral, i.e. form a single layer with the first shell being an exterior surface of the thermally insulating layer. The first shell can be manufactured from any lightweight material, preferably with good strength to weight ratios, such as aluminium or a composite material.
The thermally insulating layer can be used to thermally separate, i.e. thermally insulate, the first and second shells from each other. In other words, the second shell can additionally be thermally insulated from the first shell. Preferably, the thermally insulating layer encloses or surrounds the second shell from a first end to a second end, the ends each defined by a circumferential rim, respectively, to establish a thermal separation of the first and second shell. The receiving portion is provided within the first shell, for instance in an inside of the first shell, or between the first and second shell, or within the second shell that is in its turn within the first shell. Preferably, the receiving portion is enclosed or surrounded by the thermally insulating layer. The thermal connection may be arranged to transfer an amount of heat at least equal to the heat transferred from the exterior of the galley container to the interior of the galley container through the first and second shells. In case of equal amount of transferred heat, the temperature within the galley container and thus of the food products will stay constant. In case the heat transferred via the thermal connection is larger than the heat transferred from the exterior to the interior of the galley container, the temperature of the interior of the galley container, and thus the food products, will decrease. When only passive control of the temperature in the interior of the galley container is desired, the amounts of heat transferred can be kept equal. The galley container according to the invention may thus operate without active cooling or without any form of electrical cooling power.
According to an embodiment, the receiving portion is provided between the first shell and the second shell. The receiving portion for the cooling element can be placed at several alternative locations within the galley container. The receiving portion can be located within the second shell, i.e. in the interior of the galley container, and accessible when the door of the galley container is opened. Another location is between the first shell and the second shell, preferably between a first roof element of the first shell and a second roof element of the second shell. A further location is that the receiving portion is provided within the ceiling portion of the first shell, for instance when the roof element of the first shell comprises a hollow panel.
According to a further embodiment, the at least one door comprises a first panel facing outwards, a second panel facing the interior of the galley container, and a thermally insulating layer between the first panel and the second panel to thermally separate the first and second panel and limit heat transfer between the interior of the galley container and an exterior of the galley container when the door is in a closed position.
In the case that the at least one door is provided only at the front side of the galley container, at a rear side of the galley container a thermally insulated panel is provided to thermally insulate the interior of the galley container from the exterior of the galley container. This thermally insulating rear panel can have a similar arrangement as the door. The galley container may have a door provided at both the front and the rear side to be able to access the interior of the galley container from both sides. Furthermore, the galley container may have several doors at at least the front side, for instance to allow access to different partitions of the galley container. The different partitions within the container can be formed by the receiving portion being placed within the second shell. Alternatively, the galley container can be provided with two or more second shells within the first shell to form separate partitions of the interior of the galley container that can be accessed from the exterior of the galley container by a door.
According to the above embodiment, the second panel of the door may comprise a thermally insulating element along at least a circumferential rim of the second panel to prevent thermal bridges between the interior of the galley container and the exterior of the galley container through abutment of the second panel with the circumferential rim of the second shell when the door is in the closed position. It is preferred that a thermally insulating material is provided between the circumferential rim of the second panel and a further circumferential rim of the first panel to prevent thermal bridges between the first and second panels. Additionally, at least the second panel of the door can be provided with a sealant along the circumferential rim to prevent outside air entering the interior of the galley container when the door is in the closed position. Additionally, the further circumferential rim of the first panel can be provided with a thermally insulating element and/or a sealant.
According to an embodiment, the receiving portion is accessible from an exterior of the galley container. In case the receiving portion is provided within the second shell, as described above, the receiving portion may be accessed via the door of the galley container. Preferably, the first shell is provided with an access opening to access the receiving portion, wherein the cooling element is receivable in the receiving portion through the access opening. Opening of the door is then not necessary for access to the receiving portion, preventing unnecessary heating of the interior of the galley container. In the present context, exterior of the galley container denotes that part of the container that can be accessed when the container is sealed, i.e. when the door is closed. Preferably, the access opening is provided with a closing lid to close the access opening, for instance when the access opening is provided in the roof element of the first shell. Alternatively, the access opening may be provided in at least one of a front side and a rear side of the galley container. Furthermore, the access opening may be provided in a side wall of at least the first shell of the galley container.
According to a further embodiment, wherein between a circumferential rim of the access opening and the cooling element a sealing element is provided to prevent leakage to the exterior of the first shell after insertion of the cooling element.
In addition, a thermally insulating connecting element may be provided between the side walls and the roof element and the floor element of the first shell, respectively, to prevent thermal bridges between the interior of the galley container and an exterior of the galley container. To form the first shell, the roof element, floor element and side walls forming the separate panels of the first shell, can be connected to each other. The connection between these panels can lead to thermal bridges through which heat from the exterior may be conducted to the interior of the galley container. To prevent such thermal bridges, a thermally insulating connecting element can be provided between each panel. Alternatively, each of the roof element, floor element and the sidewalls of the first shell can be formed of a hollow panel with an insulating material provided within the hollow panel.
According to an embodiment, a sealing element is provided between the side walls of the first shell and the roof element and the floor element, respectively, to prevent outside air entering the interior of the galley container. Additionally, leakages can occur within the connections between the side walls, the roof element and the floor element of the galley container. Exterior air may then enter the interior of the galley container and influence the cooling properties of the galley container, and the food quality. Preferably, the insulating and sealing functions are combined in one element. Additionally, the second shell can be made of any other material having a thermal conductivity comparable to aluminium. Preferably, the material has a relatively high thermal conductivity, more preferably combined with a good strength to weight ratio like aluminium.
According to another embodiment, an inside of the second shell is provided with a further thermally insulating layer. In order to control the heat transfer from a cooling element receivable within the receiving portion, a further thermally insulating layer may be provided within the inside of the second shell, at least partly covering an inside surface of the second shell.
The invention further relates to a cooling element for a galley container as described above, the cooling element comprising a container for containing a coolant, and a heat transfer element to transfer heat between the container and an outside of the cooling element along at least part of the container and the outside of the cooling element. The coolant may be dry ice, i.e. solid carbon dioxide, having a temperature of about -80°C. However, other coolants with comparable properties as dry ice may be used as well. The heat transfer element can comprise a heat transfer layer, thereby forming a contact surface with the container and the outside of the cooling element along at least part of an outside surface of the cooling element and/or an outside of the container.
According to an embodiment, the cooling element comprises a thermally insulating layer to thermally insulate the container from an exterior of the cooling element. By thermally insulating the container from an exterior of the cooling element, the rate of dissipation of the dry ice can be decreased in a controlled manner, such that the cooling ability of the dry ice can last for the desired length of time, for instance a long-haul flight of an airplane. For a controlled heat transfer, insulation may be necessary, as upon direct contact between the coolant and the second shell, the coolant will dissipate too rapidly due to the heat conductive properties of the second shell.
According to a preferred embodiment, the heat transfer element forms part of the thermally insulating layer. By combining the functions of heat transfer and thermal insulation, the required space for both can be limited.
According to another embodiment, the cooling element comprises a housing, the container being receivable in the housing. The housing could for instance be a cassette that in its turn can be put into the receiving portion of the galley container as described above. Additionally, by using a housing, the cooling element can be stored and/or transported separately from the galley container. Another advantage of using a housing is that further leakage can be prevented of the coolant to the exterior of the cooling element, for instance by providing an additional sealing element between the container and the housing. Preferably, the container is a drawer slideably receivable within a housing enclosing the container.
According to a further embodiment, wherein the heat transfer element comprises a corrugated plate forming part of a circumferential wall of the cooling element, wherein corrugations are alternately tangential to at least part of an outside of the container along respective tangential regions, thereby establishing a thermal bridge between the container and the outside of the cooling element. Preferably, the corrugated plate forms part of the circumferential wall of the housing and establishes a thermal bridge between the base of the housing and the base of the container.
Furthermore, the invention relates to an assembly of a galley container as described above and a cooling element as described above, wherein the cooling element is receivable within the receiving portion of the galley container, such that the heat transfer element of the cooling element and the second shell are connected to each other, thereby establishing a thermal connection between the cooling element and the second shell, such that heat is transferrable between the cooling element and an interior of the galley container via the second shell.
The advantage of such an assembly is that the temperature of the interior of the galley container can be kept constant over a longer period of time, such as the time needed for long-haul flight of an airplane.
When only passive control of the temperature in the interior of the galley container is desired, the amounts of heat transferred can be kept equal for at least part of a long-haul flight, such that until the end of the flight, the temperature within the galley container can be kept below 8°C. The galley container according to the invention may thus operate without active cooling or without any form of electrical cooling power. In case the heat transferred via the thermal connection is smaller than the heat transferred from the exterior to the interior of the galley container, the temperature of the interior of the galley container, and thus the food products, will increase. In case of equal amount of transferred heat, the temperature within the galley container and thus of the food products will stay constant. In case the heat transferred via the thermal connection is larger than the heat transferred from the exterior to the interior of the galley container, the temperature of the interior of the galley container, and thus the food products, will decrease. It is preferred that the thermal connection is arranged to transfer an amount of heat at least equal to the heat transferred from the exterior of the galley container to the interior of the galley container through the first and second shells.
The connection between the heat transfer element and the second shell can be an indirect connection, i.e. one or more elements can be placed in between, while still establishing a thermal connection between the cooling element and the second shell, or it can be a direct connection, i.e. the heat transfer element and the second shell are at least partly adjacent to each other. The direct connection then forms the thermal connection between the cooling element and the second shell.
Brief description of the drawings
An embodiment of an assembly of an insulated galley container and a cooling element will by way of non-limiting example be described in detail with reference to the accompanying drawings. In the drawings:
Figure 1 shows a schematic, perspective view of an embodiment of the assembly of a galley container and a cooling element according to the invention.
Figure 2a shows a vertical longitudinal cross-section view of the assembly of Fig. 1 along line II-II.
Figure 2b shows a detail of the top part of the assembly of Fig. 2a.
Figure 3a shows a vertical transversal cross-section view of the assembly of Fig. 1 along line Ill-Ill
Figure 3b shows a detail of the top and bottom part of the assembly of Fig. 3a. Figure 4a shows a horizontal transversal cross-section view of the assembly of Fig. 1 along line IV-IV in Fig. 2a.
Figure 4b shows a detail of Fig. 4a.
Figure 5 shows a schematic perspective view of an embodiment of the cooling element according to the invention.
Detailed description
Figure 1 shows a perspective view of an embodiment of an assembly 1 of a galley container 2 in the form of an aircraft trolley with a support base 3 comprising wheels 4 for transport and a locking mechanism 5 to lock the wheels. The assembly 1 further comprises a cooling element 6 with a front side 7 comprising a locking and release element 50 for receipt in and release from the galley container 2 of the cooling element 6 from the receiving portion 29, see Figure 3b. The galley container 2 further comprises a first shell, here outer shell 20, and a second shell, here inner shell 21 (see Figure 2a), both comprising a roof element 8, 22, side walls 9, 23 and a floor element 10, 24. An interior 11 (shown in Fig. 2a) of the galley container 2 can be accessed through door 12, comprising a closure mechanism 13. The door 12 is hingedly connected to a side wall 9 of the galley container 2. The galley container 2 further comprises two handles 14, one at the front side, coinciding with the front side 7 of the cooling element 6, and one at the rear side, opposite the front side. These handles 14 are used to push, pull and steer the galley container 2 during use.
Figure 2a shows a longitudinal cross-section view of the assembly 1 of figure 1 along line II-II. As can be seen, the galley container 2 has a door 12a at the front side and a door 12b at the rear side of the galley container. The door 12 comprises a first panel 15 facing the front side of the galley container 2 and a second panel 16 facing away from the front side of the galley container 2. In between the first and second panels, 15, 16, a thermally insulating layer 17 is provided. Along a circumferential rim of the door 12 a sealing element 18, see Figure 2c, is provided between the front panel 15 and rear panel 16 of the door 12. The sealing element 18 is combined with a thermally insulating element 19 to prevent thermal bridges between the front panel 15 and the rear panel 16 of the door 12 and between the interior 11 and the exterior of the galley container 2, see Figure 2c.
Within the first shell 20, a second shell 21 is provided. Between the first and second shell, a thermally insulating layer 26 (see Figure 3a) is provided. A connection element 27 between first shell 20 and second shell 21 comprises a thermally insulating material such that thermal bridges between the first and second shells are prevented. The connection element 27 is provided along the circumferential rim 48 of the first shell 20 and the circumferential rim 45 of the second shell 21, see Figs. 2c and 4b.
The galley container 2 further has a receiving portion 29 situated between the roof element 22 of the inner second shell 21 and the roof element 8 of the outer first shell 20, shown in more detail in Fig. 2b. Within the receiving portion 29 the cooling element 6 is received. Between the roof elements, the thermally insulating layer 26 is present. The cooling element 6 is surrounded by this thermally insulating layer 26 present between the inner and outer shell to thermally separate the two shells. In addition, the thermally insulating layer 26 between the roof elements thermally insulates the cooling element 6 from the exterior heat. The thermal insulating layer 26 comprises a thermally insulating layer portion 30 provided against an interior side of the ceiling part 8 of the outer shell 20. The thermally insulating layer 26 can comprise any material with a lower thermal conductivity than metal, such as a polymer material.
Examples of thermally insulating material are expanded polystyrene (EPS), expanded polypropylene (EPP), an aerogel or a vacuum insulated panel (VIP).
Within the cooling element 6, a container 31 for containing the coolant 32, for instance blocks of dry ice, is provided. The container 31 further holds thermally insulating element 33 that surrounds the coolant 32 at four sides. The thermally insulating element 33 insulates the coolant from the surroundings of the cooling element 6 and thereby adds to the control of the dry ice dissipation rate. Additionally, the insulating material defines the space available for the coolant 32. In case a larger volume of coolant 32 is required, the amount of insulating material 33 can be reduced or even omitted if necessary.
Figure 3a shows a vertical transversal cross-section view of the assembly of figure 1 along line III-III and Figure 3b shows a detail of the top and bottom part of the assembly of Fig. 3a. The cooling element 6 is received within the receiving portion 29 between the parts of the thermally insulating layer 26 between the roof elements 8, 22 of the first and second shells 20, 21, respectively. The receiving portion 29 can be accessed through an access opening 28 between the roof elements 8, 22 of the first and second shells 20, 21, respectively, the access opening 28 having a circumferential rim 47. The circumferential rim 47 of the access opening 28 can be provided with a sealant (not shown) to seal the access opening 28 when the cooling element 6 is situated within the receiving portion 29. The cooling element 6 comprises a container 31 for containing the coolant 32, and a heat transfer element 35 to transfer heat between the container 31 and an outside of the cooling element along at least part of the container 31 and the outside of the cooling element 6. The container 31 is received within a housing 34 as a drawer sliding within the housing 34 enclosing the container 31, see Figure 5. To prevent leakage of exterior air to the coolant, a sealant 49 is provided between a circumferential rim 43 of the housing 34 and the front side 7 of the container 31. The heat transfer element 35 is formed by a corrugated plate forming the base of the housing, wherein corrugations 38 are alternately tangential to an outside of the container 31 or to an outside of the second shell 21, thereby establishing a thermal bridge between the base of the housing 34, the base of the container 31 and the second shell 21. In addition, a thermal insulating material can be provided within at least some of the respective corrugations to adjust the heat transfer rate between the cooling element 6 and the second shell 21.
During use as a galley trolley or container on board of an airplane, trays (not shown) will be stored within the interior 11 of the galley container 2. The trays are then supported on tray supports 25 that are provided at or on an inside of the second shell 21. Figure 3a shows tray supports 25 that protrude outwardly from the inside of the second shell 21. However, tray supports that protrude inwardly from the inside of the second shell 21, i.e. protrude inside the thermally insulating layer 26, would be possible as well. An advantage of this arrangement is that the thickness of the thermally insulating layer 26 between the side walls 9, 23 of the first and second shells 20, 21, respectively, can be increased, obtaining an increased insulation of the galley container.
Fig. 3b shows that the second shell 21 comprises two layers of material, preferably being aluminium. Any other materials with good heat conductivity, preferably combined with a good strength to weight ratio, could be used as well. Additionally, the inner and outer layer could be of distinct materials. Furthermore, two or more material could be combined within at least one of the layers as well. The two layers increase the strength of the second shell 21, necessary to be able to support the trays during use. The inner layer 40 of the inner shell 21 is provided with the outwardly protruding tray supports 25, whereas the outer layer 41 of the inner shell 21 provides additional strength to the inner shell 21, see Figure 4b. However, it is possible to manufacture the inner shell of only one layer or more than two layers as well.
Figure 4a shows a horizontal transversal cross-section view of the assembly 1 of figure 1 along line IY-IY in Fig. 2a. Inner shell 21 can be manufactured as an integral unit, but it is also possible to manufacture inner shell parts 39 and then assemble these parts 39 to form the inner shell 21. The inner shell parts 39 are connected along connection line 42.
LIST OF PARTS 1. Assembly 32. Coolant 2. Galley container 33. Thermally insulating element 3. Support base 34. Housing 4. Wheels 35. Heat transfer element 5. Locking mechanism 36. — 6. Cooling element 37. — 7. Front side of cooling element 38. Corrugation 8. Roof element of first shell 39. Second shell part 9. Side wall of first shell 40. Inner layer of second shell 10. Floor element of first shell 41. Outer layer of second shell 11. Interior of galley container 42. Connection line of second shell 12a + b. Door 43. Circumferential rim of housing 13. Closure mechanism 44. Circumferential rim of second panel 14. Handle 45. Circumferential rim of second shell 15. First panel of door 46. Circumferential rim of first panel 16. Second panel of door 47. Circumferential rim of access opening 17. Thermally insulating layer 48. Circumferential rim of first shell 18. Sealing element 49. Sealant 19. Thermally insulating element 50. Locking and release element. 20. First / outer shell 21. Second / inner shell 22. Roof element of second shell 23. Side wall of second shell 24. Floor element of second shell 25. Tray support element 26. Thermally insulating layer 27. Connection element 28. Access opening 29. Receiving portion 30. Thermally insulating layer portion 31. Container

Claims (22)

1. Boordkeukencontainer (2) voor gebruik in een luchtvaartuig, omvattende - een eerste schil (20) met een omtreksrand (48) welke een opening voor toegang tot een binnenzijde (11) van de boordkeukencontainer bepaalt; - een tweede schil (21) binnen de eerste schil, welke tweede schil een verdere omtreksrand (45) heeft; waarbij elke schil een dakelement (8, 22), een vloerelement (10, 24) en ten minste twee zijwanden (9, 23) omvat, waarbij de boordkeukencontainer verder omvat: - een thermisch isolerende laag (26), welke de tweede schil thermisch isoleert van een buitenzijde van de boordkeukencontainer; - een opnamedeel (29) voor het opnemen van een koelelement (6), welk opnamedeel is voorzien binnen de eerste schil, en - ten minste een deur (12) voorzien aan de opening om de boordkeukencontainer te sluiten in een gesloten positie van de deur, waarbij de tweede schil en het opnamedeel zijn voorzien van een thermische verbinding zodat warmte overdraagbaar is tussen het opnamedeel en de binnenzijde van de boordkeukencontainer via de tweede schil.An on-board kitchen container (2) for use in an aircraft, comprising - a first shell (20) with a peripheral edge (48) defining an opening for access to an inside (11) of the on-board kitchen container; - a second shell (21) within the first shell, which second shell has a further peripheral edge (45); each shell comprising a roof element (8, 22), a floor element (10, 24) and at least two side walls (9, 23), the on-board kitchen container further comprising: - a thermally insulating layer (26), which thermally insulates the second shell isolates from the outside of the on-board kitchen container; - a receiving part (29) for receiving a cooling element (6), which receiving part is provided within the first shell, and - at least one door (12) provided at the opening for closing the kitchen container in a closed position of the door wherein the second shell and the receiving part are provided with a thermal connection so that heat is transferable between the receiving part and the inside of the kitchen container via the second shell. 2. Boordkeukencontainer volgens conclusie 1, waarbij het opnamedeel is voorzien in een binnenzijde van de eerste schil.The on-board kitchen container according to claim 1, wherein the receiving part is provided in an inner side of the first shell. 3. Boordkeukencontainer volgens conclusie 1 of 2, waarbij het opnamedeel is voorzien tussen de eerste schil en de tweede schil.The on-board kitchen container according to claim 1 or 2, wherein the receiving part is provided between the first shell and the second shell. 4. Boordkeukencontainer volgens conclusie 3, waarbij het opnamedeel is voorzien tussen een eerste dakelement (8) van de eerste schil en een tweede dakelement (22) van de tweede schil.The on-board kitchen container according to claim 3, wherein the receiving part is provided between a first roof element (8) of the first shell and a second roof element (22) of the second shell. 5. Boordkeukencontainer volgens een der voorgaande conclusies, waarbij de ten minste ene deur (12, 12’) omvat - een naar buiten gekeerd eerste paneel (15); - een naar de binnenzijde van de boordkeukencontainer gekeerd tweede paneel (16); en - een thermisch isolerende laag (17) tussen het eerste paneel en het tweede paneel om het eerste en tweede paneel thermisch te scheiden en de warmteoverdracht tussen de binnenzijde van de boordkeukencontainer en de buitenzijde van de boordkeukencontainer te limiteren wanneer de deur zich in de gesloten positie bevindt.The on-board kitchen container according to any of the preceding claims, wherein the at least one door (12, 12 ') comprises - an outwardly-facing first panel (15); - a second panel (16) facing the inside of the on-board kitchen container; and - a thermally insulating layer (17) between the first panel and the second panel to thermally separate the first and second panels and to limit the heat transfer between the inside of the on-board kitchen container and the outside of the on-board kitchen container when the door is in the closed position. 6. Boordkeukencontainer volgens conclusie 5, waarbij het tweede paneel een thermische isolerend element (9) langs ten minste een omtreksrand (44) van het tweede paneel omvat voor het voorkomen van thermische bruggen tussen de binnenzijde van de boordkeukencontainer en de buitenzijde van de boordkeukencontainer door aanraking van het tweede paneel met de omtreksrand van de tweede schil wanneer de deur zich in de gesloten positie bevindt.The on-board kitchen container according to claim 5, wherein the second panel comprises a thermal insulating element (9) along at least one peripheral edge (44) of the second panel for preventing thermal bridges between the inside of the on-board kitchen container and the outside of the on-board kitchen container contact of the second panel with the peripheral edge of the second shell when the door is in the closed position. 7. Boordkeukencontainer volgens conclusie 5 of 6, waarbij een verder thermisch isolerend element (43) is voorzien tussen de omtreksrand van het tweede paneel en een verdere omtreksrand (46) van het eerste paneel om thermische bruggen tussen de eerste en tweede panelen te voorkomen.The on-board kitchen container according to claim 5 or 6, wherein a further thermally insulating element (43) is provided between the peripheral edge of the second panel and a further peripheral edge (46) of the first panel to prevent thermal bridges between the first and second panels. 8. Boordkeukencontainer volgens een der conclusies 5-7, waarbij ten minste het tweede paneel van de deur is voorzien van een afdichting (18) langs de omtreksrand om te voorkomen dat buitenlucht de binnenzijde van de boordkeukencontainer binnentreedt wanneer de deur zich in de gesloten positie bevindt.The on-board kitchen container according to any of claims 5-7, wherein at least the second panel of the door is provided with a seal (18) along the peripheral edge to prevent outside air from entering the inside of the on-board kitchen container when the door is in the closed position is located. 9. Boordkeukencontainer volgens een der voorgaande conclusies, waarbij het opnamedeel toegankelijk is vanuit een buitenzijde van de boordkeukencontainer.9. On-board kitchen container according to one of the preceding claims, wherein the receiving part is accessible from an outside of the on-board kitchen container. 10. Boordkeukencontainer volgens een der voorgaande conclusies, waarbij de eerste schaal is voorzien van een toegangsopening (28) voor toegang tot het opnamedeel, waarbij het koelelement opneembaar is in het opnamedeel door de toegangsopening.The on-board kitchen container according to any one of the preceding claims, wherein the first tray is provided with an access opening (28) for access to the receiving part, wherein the cooling element can be received in the receiving part through the access opening. 11. Boordkeukencontainer volgens conclusie 10, waarbij de toegangsopening is voorzien van een sluitdeksel om de toegangsopening te sluiten.The on-board kitchen container according to claim 10, wherein the access opening is provided with a closing lid to close the access opening. 12. Boordkeukencontainer volgens conclusie 10 of 11, waarbij de toegangsopening is voorzien in het dakelement van de eerste schil.12. On-board kitchen container according to claim 10 or 11, wherein the access opening is provided in the roof element of the first shell. 13. Boordkeukencontainer volgens conclusie 10 of 11, waarbij de toegangsopening is voorzien in ten minste een van een voorzijde en een achterzijde van de b oordkeukencontainer.13. On-board kitchen container as claimed in claim 10 or 11, wherein the access opening is provided in at least one of a front and a rear side of the on-board kitchen container. 14. Boordkeukencontainer volgens een der conclusies 10-13, waarbij tussen een omtreksrand (47) van de toegangsopening en het koelelement een afdichtelement (49) is voorzien om lekkage van de buitenzijde van de eerste schil na het inzetten van het koelelement te voorkomen.14. On-board kitchen container according to one of claims 10-13, wherein a sealing element (49) is provided between a peripheral edge (47) of the access opening and the cooling element to prevent leakage of the outside of the first shell after the cooling element has been inserted. 15. Boordkeukencontainer volgens een der voorgaande conclusies, waarbij een binnenzijde van de tweede schil is voorzien van een verdere thermisch isolerende laag.15. On-board kitchen container as claimed in any of the foregoing claims, wherein an inside of the second shell is provided with a further thermally insulating layer. 16. Koelelement (6) voor een boordkeukencontainer (2) volgens een der voorgaande conclusies, waarbij het koelelement omvat - een houder (31) voor het vasthouden van een koelmiddel (32), en - een warmteoverdrachtelement (35) voor het overdragen van warmte tussen de houder en een buitenkant van het koelelement langs ten minste een deel van de houder en de buitenzijde van het koelelement.A cooling element (6) for an on-board kitchen container (2) according to any one of the preceding claims, wherein the cooling element comprises - a holder (31) for holding a coolant (32), and - a heat transfer element (35) for transferring heat between the holder and an outside of the cooling element along at least a part of the holder and the outside of the cooling element. 17. Koelelement volgens conclusie 16, omvattende een thermisch isolerende laag om de houder thermisch te isoleren van een buitenzijde van het koelelement.A cooling element according to claim 16, comprising a thermally insulating layer for thermally insulating the container from an outside of the cooling element. 18. Koelelement volgens conclusie 17, waarbij het warmteoverdrachtelement een onderdeel vormt van de thermisch isolerende laag.A cooling element according to claim 17, wherein the heat transfer element forms a part of the thermally insulating layer. 19. Koelelement volgens een der conclusies 16-18, omvattende een behuizing (34), waarbij de houder opneembaar is in de behuizing.A cooling element according to any one of claims 16-18, comprising a housing (34), wherein the holder can be received in the housing. 20. Koelelement volgens conclusie 19, waarbij de houder een lade is die schuifbaar opneembaar is in de behuizing welke de houder omsluit.A cooling element according to claim 19, wherein the holder is a drawer which can be slidably received in the housing which encloses the holder. 21. Koelelement volgens een der conclusies 16-20, waarbij het warmteoverdrachtelement een geprofdeerde plaat omvat, welke plaat een deel van een omtrekswand van het koelelement omvat, waarbij profielen (38) om en om raken aan ten minste een deel van de buitenzijde van de container langs respectieve tangentiële gebieden, daarbij een thermische brug tussen de houder en de buitenzijde van het koelelement vormend.A cooling element according to any one of claims 16-20, wherein the heat transfer element comprises a profiled plate, which plate comprises a part of a peripheral wall of the cooling element, wherein profiles (38) alternately touch at least a part of the outside of the cooling element. container along respective tangential areas, thereby forming a thermal bridge between the container and the outside of the cooling element. 22. Samenstel (1) van een boordkeuken (2) volgens een der conclusies 1-15 en een koelelement (6) volgens een der conclusies 16-21, waarbij het koelelement opneembaar is in het opnamedeel (29) van de boordkeuken, zodat het warmteoverdrachtelement (35) van het koelelement en de tweede schil (21) verbonden zijn met elkaar, daarbij een thermische verbinding tussen het koelelement en de tweede schil vormend, zodat warmte overdraagbaar is tussen het koelelement en een binnenzijde (11) van de boordkeuken via de tweede schil.An assembly (1) of an on-board kitchen (2) according to one of claims 1-15 and a cooling element (6) according to one of claims 16-21, wherein the cooling element can be received in the receiving part (29) of the on-board kitchen, so that the heat transfer element (35) of the cooling element and the second shell (21) are connected to each other, thereby forming a thermal connection between the cooling element and the second shell, so that heat is transferable between the cooling element and an inside (11) of the on-board kitchen via the second shell.
NL2012113A 2014-01-20 2014-01-20 A galley container and a cooling element to cool the interior of the galley container. NL2012113C2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL2012113A NL2012113C2 (en) 2014-01-20 2014-01-20 A galley container and a cooling element to cool the interior of the galley container.
CN201580005197.0A CN105939931A (en) 2014-01-20 2015-01-20 Galley container and cooling element to cool interior of galley container
SG11201605871UA SG11201605871UA (en) 2014-01-20 2015-01-20 A galley container and a cooling element to cool the interior of the galley container
PCT/NL2015/050035 WO2015108422A1 (en) 2014-01-20 2015-01-20 A galley container and a cooling element to cool the interior of the galley container
EP15702596.6A EP3097015B1 (en) 2014-01-20 2015-01-20 A galley container and a cooling element to cool the interior of the galley container

Applications Claiming Priority (2)

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NL2012113A NL2012113C2 (en) 2014-01-20 2014-01-20 A galley container and a cooling element to cool the interior of the galley container.
NL2012113 2014-01-20

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Publication number Priority date Publication date Assignee Title
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FR2561509A1 (en) * 1984-03-26 1985-09-27 Soceman Trolley for serving meals on an aircraft
WO2006093410A1 (en) * 2005-03-04 2006-09-08 Driessen Aerospace Group N.V. Device for accommodating objects, as well as transport means
EP2336684A1 (en) * 2009-12-21 2011-06-22 Messer France S.A.S. Filling device for filling a coolant container compartment attached to a coolant container with a cryogenic coolant
US20110248458A1 (en) * 2010-04-13 2011-10-13 Martin Belanger Parts securing mechanism and method thereof
WO2013024448A1 (en) * 2011-08-16 2013-02-21 SEARLE, John Peter Delivery container for temperature sensitive goods

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123678A (en) * 1937-05-01 1938-07-12 Refrigerator container
FR2561509A1 (en) * 1984-03-26 1985-09-27 Soceman Trolley for serving meals on an aircraft
WO2006093410A1 (en) * 2005-03-04 2006-09-08 Driessen Aerospace Group N.V. Device for accommodating objects, as well as transport means
EP2336684A1 (en) * 2009-12-21 2011-06-22 Messer France S.A.S. Filling device for filling a coolant container compartment attached to a coolant container with a cryogenic coolant
US20110248458A1 (en) * 2010-04-13 2011-10-13 Martin Belanger Parts securing mechanism and method thereof
WO2013024448A1 (en) * 2011-08-16 2013-02-21 SEARLE, John Peter Delivery container for temperature sensitive goods

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