EP3090961A1 - Cooling box and method for transporting perishables or heat-sensitive products in a transport vehicle and/or for distributing products to final customers - Google Patents
Cooling box and method for transporting perishables or heat-sensitive products in a transport vehicle and/or for distributing products to final customers Download PDFInfo
- Publication number
- EP3090961A1 EP3090961A1 EP15166810.0A EP15166810A EP3090961A1 EP 3090961 A1 EP3090961 A1 EP 3090961A1 EP 15166810 A EP15166810 A EP 15166810A EP 3090961 A1 EP3090961 A1 EP 3090961A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling box
- cooling
- cool pack
- boxes
- cool
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 146
- 238000000034 method Methods 0.000 title claims abstract description 24
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 59
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 29
- 239000001569 carbon dioxide Substances 0.000 claims description 29
- 235000013361 beverage Nutrition 0.000 claims description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 22
- 239000012809 cooling fluid Substances 0.000 claims description 17
- 230000008878 coupling Effects 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 16
- 238000005859 coupling reaction Methods 0.000 claims description 16
- 230000005496 eutectics Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000008188 pellet Substances 0.000 claims description 4
- 230000008016 vaporization Effects 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 claims 1
- 235000013305 food Nutrition 0.000 description 11
- 235000013611 frozen food Nutrition 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/02—Devices using other cold materials; Devices using cold-storage bodies using ice, e.g. ice-boxes
- F25D3/06—Movable containers
- F25D3/08—Movable containers portable, i.e. adapted to be carried personally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
- B65D81/3813—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation rigid container being in the form of a box, tray or like container
-
- 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
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/10—Refrigerator top-coolers
Definitions
- the present invention relates to a cooling box for transporting cooled products in a transport vehicle and/or for distributing cooled heat-sensitive products or perishables to final customers.
- the invention also relates to a method for transporting heat-sensitive products together with other transport containers from a supply center to final customers.
- Usual cooling boxes use exchangeable cool packs for keeping goods cool in the box for a certain period of time. It is also known to use carbon dioxide snow instead of cool packs. An example for such a system is described in WO 2011/086265 A1 .
- the device for transporting and distributing heat-sensitive products as described in this document allows commissioning of the box with heat-sensitive products through an upper commissioning opening, and the temperature in the box in maintained by a bag filled with a required amount of carbon dioxide snow.
- a cooling box as solution for the above object is defined in independent claim 1.
- the corresponding method for transporting and distributing heat-sensitive products is defined in independent claim 14.
- a cooling box for transporting heat-sensitive products in a transport vehicle and/or for distributing heat-sensitive products to final customers comprises:
- a main aspect of the present invention relates to the interior of a cooling box.
- the box according to the present invention has a thermally insulating cuboid housing with a commissioning opening on an upper side.
- the housing contains a first and a second storage chamber, which can be designed for one or two different temperatures, both together surrounded on five sides by the housing and open on the upper side.
- a cover is used to open and close the commissioning opening of the housing, wherein the cover contains an integrated cool pack to be filled, cooled down and/or exchanged in a supply center, in particular by use of service tools only. This means that the cool pack is not a separate part and the cooling medium is not directly accessible to persons using the box for transport of goods in the intended way.
- the volume of the first and second chambers may be variable as well as their areas of contact to the cool pack and their thermal insulations.
- cooling box the special situation in a transport vehicle was taken into account in a preferred embodiment.
- Usual orders of customers require transporting boxes of beverages, cooling boxes and other transport containers in the same vehicle.
- To do this in a safe and handy manner it is necessary to place the heavy loads on the ground and to form stacks with the light weight containers on top.
- the most appropriate way is to place beverage boxes on the ground of the cargo compartment of the transport vehicle and to place cooling boxes on top of them completing the stack by other transport containers on top of the cooling boxes.
- cooling boxes according to the present invention need a profiled outer bottom plate to cooperate in a form locking manner with a certain underlying raster, in particular the upper side of beverage boxes.
- a profiled outer cover plate enables the cooling box to safely carry other transport containers.
- outer bottom plate and the outer cover plate of cooling boxes can cooperate with each other, but to form higher stacks of several beverage and cooling boxes and other transport containers it is advantageous to use profiles, which can cooperate with each kind of transported boxes or containers.
- the ground of the cargo compartment in the transport vehicle can also be profiled to allow cooperation with any kind of boxes and containers and it is also possible to add frames having a similar profile in the cargo compartment to allow a flexible loading with different amounts and kinds of containers even if one layer is not completely filled.
- a first outer surface of the cool pack is in contact with the first storage chamber and a second outer surface of the cool pack is in contact with the second storage chamber, wherein the first and the second outer surfaces have different areas and/or profiles and/or thermal surface insulations.
- This feature allows keeping the first and the second storage chamber at different temperatures during the transport.
- the parameters area, profile, and/or thermal insulation of the cool pack allow adapting the heat transfer from the cool pack into both storage chambers to most desired requirements. For this reason, the dimensions of the surfaces and/or their thermal insulation can be designed as variable or exchangeable.
- a cooling box according to the invention can be either unpacked with the customer and directly be returned by the transport vehicle or they can be left with the customer until it is returned by the customer to a supply center.
- the cool pack is integrated in the cover and cannot be removed or manipulated and cannot jeopardize any person handling the cooling box. This is for example not always the case with containers cooled by separate bags of carbon dioxide snow or by separate, not integrated exchangeable cool packs.
- the integration of the cool pack into the cover makes it desirable that the cool pack can be cooled down or exchanged by using special service tools in a short period of time, in particular 1 to 15 minutes, preferable 5 to 10 minutes, in a supply center.
- the cool pack is designed to receive solid carbon dioxide as snow, pellets and/or an shape of blocks.
- Different methods to produce carbon dioxide snow by expanding liquid carbon dioxide are well known and can be used to fill an integrated container as cool pack in the cover of the box with carbon dioxide snow. It is also possible to fill carbon dioxide pellets or block or bags with solid carbond dioxide in an integrated container by using special tools in a service center.
- the coolpack contains eutectic material and has at least one coupling for coupling a supply line for a cooling fluid, which allows cooling down the cool pack via heat exchange surfaces.
- These heat exchange surfaces can preferably be in the interior of the cool pack, but also outer heat exchange surfaces may be used.
- the cool pack with eutectic material is integrated into the cover and can be cooled by allowing a cooling fluid to flow along heat exchange surfaces. This differs from most other concepts with exchangeable cool packs or a vaporizing cooling medium like dry ice. Depending on the eutectic material used for filling the cool pack and on the working temperature range of this material the parameters of the surfaces to keep the two chambers of the box at different temperatures can be adapted.
- the heat exchange surfaces of the cool pack are preferably designed and dimensioned to cool the cool pack by vaporizing liquid nitrogen into the cool pack through the coupling.
- liquid nitrogen seems to be the most appropriate means for cooling down cool packs containing eutectic material in an economic way and without complicated couplings and exhaust systems.
- a material should be used which is solid after cooling down and remains a gel when warmed up.
- a non-poisonous material should be used. Such materials are already available and used in exchangeable cool packs.
- the eutectic material is according to another embodiment of the invention contained in a metallic housing and/or has metallic heat exchange surfaces, preferably the metallic housing forms at least a part of the heat exchange surfaces.
- This embodiment can be realized for example by heat exchange pipes in the interior of the eutectic material for guiding a cooling fluid or by metallic plates, preferably ripped or otherwise profiled, along which the cooling fluid flows.
- Internal heat exchange surfaces in the cool pack compared to outer heat exchange surfaces have the advantage that they cannot be damaged during handling and better distribute the cold in the eutectic material.
- the described concept makes it necessary that the cooling box according to the invention can be transported by a single person like for example beverage boxes. This restricts the outer dimensions to similar dimensions or even equal dimensions as those of beverage boxes. Under certain conditions a size up to twice the size of beverage boxes may be possible. This means that the outer dimensions length, width and height of the cooling box are 500 x 300 x 55 mm +/- 20 % for each dimension separately, preferably 10 %.
- the cool pack has a T-shaped cross section forming an inner part of the cover and perpendicular to this inner part a separating wall between the first and the second storage chamber.
- the heat exchange surfaces between the cool pack and the storage chambers can be made larger and the lower part of the cooling box needs not to contain a structural wall.
- stable nets on both sided may be provided to allow after commissioning to introduce the separating wall between the nets.
- the cool pack in a first version has such a shape that it forms at least a part of a separating wall between the first and the second storage chamber.
- This feature allows to establish the two storage chambers in the cooling box by inserting the cover with the cool pack and to cool down both storage chambers for a certain period of transport time.
- the separating wall is mounted (possibly in variable positions) in the cooling box and can be brought into heat conducting contact with the cool pack, when the cover is closed.
- the cooling box according to the invention is designed to being handled by a single person, having preferably a weight of less than 10 kg when empty and being designed to carry up to 15 kg as transportable load.
- Handholds or the like should be located at outer side walls of the cooling box in such a way that they do not disturb the loading side by side.
- the shape and dimensions of the cooling box are adapted to the shape of other transport containers, in particular usual beverage boxes, to be transported together with the cooling box in a transport vehicle.
- the inner and/or the outer walls of the cooling box are preferably profiled to allow convection along the walls, preferably by means of vertical grooves. At the inner side this provides a smooth temperature profile by convection. At the outer side grooves make sure that each box in a transport vehicle finds almost the same ambient conditions not depending on the position in the transport vehicle.
- the present invention also relates to a method for transporting cooled heat-sensitive products together with other transport containers from a supply center to final customers according to claim 13. This method comprises:
- the method according to the invention allows a high throughput in a supply center as the cooling down of the cool pack, which is integrated in the cover of the cooling box can be done separately to the cleaning of the two storage chambers and the commissioning of the cooling box.
- cleaning and commissioning may take a few minutes only the cool pack is designed to be cooled down also in a few minutes.
- it is preferably coupled to a supply line supplying a cooling fluid for a predetermined time interval. The time interval may depend on the required amount of cooling fluid and can be controlled by usual control means. If the control means show that cooling down is completed, the coupling is disconnected and the cover can be used to close an already commissioned cooling box.
- solid carbon dioxide as snow, pellets or blocks shall be used for cooling the cool pack, this can be done according to known methods for producing the solid carbon dioxide.
- the carbon dioxide is stored in an integrated container in the cover of the box, preferably not accessible without service tools to avoid theft of cool packs, misuse or dangerous situations in the supply chain.
- the filling openings should be designed such that it is not possible to manually (even for children) reach the interior of the container and to come into contact with carbon dioxide snow. It is also possible to make at least one segment in the cool pack variable concerning its dimensions to adapt it to different required amounts of carbon dioxide snow or to different cooling requirements.
- the outer shape of the cooling box allows a safe transport in a transport vehicle similar to the known transport of beverage boxes and the like, which can form stacks, when placed on top of each other.
- the shape of the cooling box makes it also possible to transport several of them or a mixture of beverage boxes, cooling boxes and other transport containers on a handcar or the like for distributing them to final customers.
- the empty cooling box is then returned to the supply center either with the transport vehicle or later by the customer, where it can be cleaned to start the whole process again.
- the cooling fluid is liquid nitrogen, which is widely and economically available and can be released into the environment or into a nitrogen network after use for cooling down the cooling packs.
- the safest way to transport different goods in a transport vehicle is to place the heavier pieces in a lower level and to form stacks with the light weight containers on top.
- Fig. 1 and 2 show a schematic perspective view on a cooling box 1 according to the invention with a somewhat lifted cover 12 and a longitudinal section through such a cooling box, respectively.
- the cooling box 1 has a thermally insulating housing 7 of cuboid shape and with similar dimensions as a usual beverage box. This means in particular that the length L and the width W allow placing the cooling box 1 with a profiled outer bottom plate 20 on one or two usual beverage boxes.
- the height H of the cooling box 1 including the cover 12 is about 500 mm +/- 20 %.
- the cover 12 has a profiled outer cover plate 21 to safely carry further transport containers (not shown in fig. 1 ).
- the cover 12 comprises a cool pack 13 containing a eutectic material 14 to keep the interior of the cooling box 1 cool.
- the cool pack 13 has a T-shape forming an inner part 27 of the cover 12 and perpendicular to this a separating wall 22 between a first 9 and a second 10 storage chamber.
- a heat exchange surface 19 is provided, in the present case formed by at least one metallic pipe for guiding a cooling fluid 17 through the interior of the whole cool pack 13.
- the cooling fluid 17, preferably liquid nitrogen LIN enters the cool pack 13 through a coupling 15 to which a not shown supply line can be connected.
- the cooling fluid 17 leaves the cool pack through an outlet 38 either also coupled to an exhaust line or simply open to the environment 6.
- the size, shape and profile of the heat exchange surface 19 is designed to cool down the cool pack within 1 to 15 minutes by supplying liquid nitrogen LIN, which is released as gaseous nitrogen at the outlet 38.
- the cool pack 13 has at least partly a metallic housing 26. When the cover 12 is closed, the cool pack 13 has a first outer surface 23 forming two sides of the first storage chamber 9 and a second outer surface 24 forming two sides of the second storage chamber 10. To maintain different temperatures in the first 9 and the second 10 storage chambers the first outer surface 24 is at least partly covered by a surface insulation 25, while the second outer surface 24 is the metallic housing 26 itself. This results in a lower temperature in the second storage chamber 10, which can be used for example for transporting deep frozen food.
- a holder 39 for receiving an end of the separating wall 22 is mounted on the ground of the cooling box 1.
- Handholds 36 allow a single person to transport the whole cooling box 1 and a profiled outer cover plate 21 allows to safely place further transport containers (not shown) on top of at least one cooling box 1.
- Fig. 3 shows a similar cooling box 1 like in figures 1 and 2 in a schematic perspective view, but in this embodiment the separating wall 22 is not part of the cover 12, but belongs to the thermally insulated housing 7 or is at least inserted therein, possibly at variable positions.
- This embodiment is preferred for cool packs filled with carbon dioxide snow as the low temperature of this cooling medium does not require large surface areas for keeping cool the storage chambers 9, 10 of the cooling box 1.
- Fig. 4 gives an overview over the whole transport cycle when using transport boxes 1 according to the present invention.
- a supply center 32 the first 9 and the second 10 storage chamber of a cooling box 1 are cleaned before the commissioning with products ordered by a final customer takes place.
- fresh food in placed in the first storage chamber 9 while deep frozen food can be placed in the second storage chamber 10.
- its cover 12 is cooled down by connecting the coupling 15 to a supply line 16, which supplies liquid nitrogen LIN as cooling fluid 17 from a tank 18 to flow through eutectic material 14 in the cool pack 13 before it is released as gaseous nitrogen through an outlet 38 into the environment 6 or an exhaust line 37.
- the supply is maintained for a predetermined filling time T or until a certain temperature of the cool pack 13 is reached.
- the filling may be controlled by a control circuit (not shown).
- the cover 12 After commissioning and releasing the cover 12 from the supply line 16 the cover 12 is used to close the cooling box 1 and to establish a separating wall 22 between the first 9 and the second 10 storage chamber.
- the closed cooling box 1 together with other such boxes is loaded into a transport vehicle 3, which receives for example a lower layer 28 of (standard) beverage boxes 29, on which the cooling boxes 1 are packed.
- transport containers 31 for light weight goods may be packed on top of the cooling boxes 1.
- the bottom 4 of the transport vehicle 3 should have a raster 5 with a profile to safely transport in a form locking manner beverage boxes 29 or cooling boxes 1.
- the compartment of the transport vehicle 3 contains at least one frame 33, which can safely carry on an upper surface 34 cooling boxes 1, even if a lower layer 28 is not completely filled with beverage boxes 29.
- the transport vehicle 3 can now deliver beverages, food and/or other articles as ordered to final customers.
- empty cooling boxes 1 are returned (as well as empty beverage boxes 29 and transport containers 31) to the supply center 32, where the whole cycle can be started again.
- the design of the cool pack has to be adapted for this use as can be schematically seen in Fig. 5 .
- the cool pack 13 contains a hollow interior 41, 42, possibly divided into two or more separate (and possibly variable) sectors 41, 42.
- At least one nozzle 40, preferable one nozzle 40 in each sector 41, 42 allows to spray liquid carbon dioxide from a tank 18 via a supply line 16 into the interior 41, 42 and to thus produce carbon dioxide snow to fill the cool pack 13.
- This is preferably done in an automated process line 43, which allows to stop each cover 12 at a filling position, to fill it by introducing at least one filling device into a filling opening and to transport the cover 12 after filling to its next destination in the supply center 32.
- one or more sectors 41, 42 can be filled and/or the size of the sectors 41, 42 can be varied, for example by a moving the wall between the sectors 41, 42. It should be noted that in case of using carbon dioxide snow the surfaces of the cool pack 13, as far as they can be touched by a person, have to be protected by a coating or other means to avoid injuries.
- the present invention allows a safe and economic transport of different goods, including fresh food and deep frozen food to final customers. Especially the handling of heat-sensitive food is improved and the risks during transport and possible handling of cooling boxes by final customers are minimized.
- the cooling boxes can either be used to unload them directly with the customer or to leave them with the customer for keeping the transported food cool for another few hours and to let the customer return the cooling box. In any case the transport cycle does not require large cooling chambers for exchangeable cool packs nor takes a long time to clean, refill and cool down the returned cooling boxes.
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Abstract
Description
- The present invention relates to a cooling box for transporting cooled products in a transport vehicle and/or for distributing cooled heat-sensitive products or perishables to final customers. The invention also relates to a method for transporting heat-sensitive products together with other transport containers from a supply center to final customers.
- Nowadays, it has become more and more common to transport and distribute goods, including food, in particular heat-sensitive products, from a distribution center to final customers. Groceries receive orders from customers, for example online via internet platforms, and organize the transport of food and other products of the daily life to the customers. So far the most difficult part of such a business model is the transport of deep-frozen food and/or fresh food, especially meat, which both require different temperatures, mostly below the environment temperature. The transport system has to make sure that the required temperature ranges are not exceeded during the whole transport duration. Moreover, to organize an economic system, it is necessary to jointly transport many different goods for many customers in a transport vehicle to deliver at the same time for example beverages, cooled products and other food and/or products for the daily life.
- Of course, many kinds of cooling boxes are known in the prior art and many kinds of transport containers for different purposes are already used in supply chains.
- Usual cooling boxes use exchangeable cool packs for keeping goods cool in the box for a certain period of time. It is also known to use carbon dioxide snow instead of cool packs. An example for such a system is described in
WO 2011/086265 A1 . The device for transporting and distributing heat-sensitive products as described in this document allows commissioning of the box with heat-sensitive products through an upper commissioning opening, and the temperature in the box in maintained by a bag filled with a required amount of carbon dioxide snow. - It is an object of the present invention to create a cooling box, which is designed to be transported together with other cooling boxes and/or together with other kinds of containers in a transport vehicle. Another object of the present invention is to provide a cooling box in which different kinds of heat-sensitive products and/or perishables requiring different transport temperature ranges can be transported, in particular deep frozen food and fresh food like milk products or meat. Yet another object of the present invention is to avoid any dangerous handling or misuse of cool packs or cooling material by customers or personal of a supply service. An additional object of the present invention is to create a method in the sense of a complete supply system for transporting and distributing heat sensitive products from a distribution center to final customers via transport vehicles.
- A cooling box as solution for the above object is defined in
independent claim 1. The corresponding method for transporting and distributing heat-sensitive products is defined inindependent claim 14. Advantageous features according to the invention, which can be separately or jointly applied as technically feasible are described in the respective dependent claims. - A cooling box for transporting heat-sensitive products in a transport vehicle and/or for distributing heat-sensitive products to final customers according to the present invention comprises:
- a thermally insulating cuboid housing with a commissioning opening on an upper side,
- a first and a second storage chamber both together surrounded on five sides by the housing and open on the upper side,
- a cover to open and close the commissioning opening of the housing, the cover containing an integrated cool pack to be filled, cooled down and/or exchanged in a supply center.
- In a preferred embodiment the cooling box has the following additional features:
- a profiled outer bottom plate to cooperate in a form locking manner with a certain underlying raster,
- a profiled outer cover plate to carry other transport containers.
- A main aspect of the present invention relates to the interior of a cooling box. As most known cooling boxes also the box according to the present invention has a thermally insulating cuboid housing with a commissioning opening on an upper side. However, according to the present invention the housing contains a first and a second storage chamber, which can be designed for one or two different temperatures, both together surrounded on five sides by the housing and open on the upper side. A cover is used to open and close the commissioning opening of the housing, wherein the cover contains an integrated cool pack to be filled, cooled down and/or exchanged in a supply center, in particular by use of service tools only. This means that the cool pack is not a separate part and the cooling medium is not directly accessible to persons using the box for transport of goods in the intended way. Customers and personal of a supply service cannot take out, manipulate and/or use in any dangerous way the cool pack and the cooling material without using tools, preferably tools adapted to the specific cool pack, or without damaging the box. Any couplings or supply and exhaust openings can be designed to prevent unauthorized personal or children from coming into contact with cooling material or to contact surfaces, which could cause injuries. This means that all metallic parts, which can be at a temperature below 0° C during use of the cooling box, should have insulating coatings or be covered by safety grids or the like. All openings which could allow access to the interior of the cool pack should be narrow and or deeply inside the cover, such that even children's fingers cannot reach areas or surfaces with dangerous temperature.
- If a cooling box is intended for different transport tasks, the volume of the first and second chambers may be variable as well as their areas of contact to the cool pack and their thermal insulations.
- Concerning the outer shape of the cooling box the special situation in a transport vehicle was taken into account in a preferred embodiment. Usual orders of customers require transporting boxes of beverages, cooling boxes and other transport containers in the same vehicle. To do this in a safe and handy manner, it is necessary to place the heavy loads on the ground and to form stacks with the light weight containers on top. The most appropriate way is to place beverage boxes on the ground of the cargo compartment of the transport vehicle and to place cooling boxes on top of them completing the stack by other transport containers on top of the cooling boxes. This means that cooling boxes according to the present invention need a profiled outer bottom plate to cooperate in a form locking manner with a certain underlying raster, in particular the upper side of beverage boxes. A profiled outer cover plate enables the cooling box to safely carry other transport containers. It is not absolutely necessary that the outer bottom plate and the outer cover plate of cooling boxes can cooperate with each other, but to form higher stacks of several beverage and cooling boxes and other transport containers it is advantageous to use profiles, which can cooperate with each kind of transported boxes or containers. The ground of the cargo compartment in the transport vehicle can also be profiled to allow cooperation with any kind of boxes and containers and it is also possible to add frames having a similar profile in the cargo compartment to allow a flexible loading with different amounts and kinds of containers even if one layer is not completely filled.
- In another preferred embodiment a first outer surface of the cool pack is in contact with the first storage chamber and a second outer surface of the cool pack is in contact with the second storage chamber, wherein the first and the second outer surfaces have different areas and/or profiles and/or thermal surface insulations. This feature allows keeping the first and the second storage chamber at different temperatures during the transport. As the heat transfer from the environment into the cooling box depends on the temperature difference between the environment and the interior of the storage chambers and on the size of the walls of the storage chamber, the parameters area, profile, and/or thermal insulation of the cool pack allow adapting the heat transfer from the cool pack into both storage chambers to most desired requirements. For this reason, the dimensions of the surfaces and/or their thermal insulation can be designed as variable or exchangeable.
- A cooling box according to the invention can be either unpacked with the customer and directly be returned by the transport vehicle or they can be left with the customer until it is returned by the customer to a supply center. For both purposes it is important that the cool pack is integrated in the cover and cannot be removed or manipulated and cannot jeopardize any person handling the cooling box. This is for example not always the case with containers cooled by separate bags of carbon dioxide snow or by separate, not integrated exchangeable cool packs. However, the integration of the cool pack into the cover makes it desirable that the cool pack can be cooled down or exchanged by using special service tools in a short period of time, in particular 1 to 15 minutes, preferable 5 to 10 minutes, in a supply center. Thus, it is not required to bring a high number of covers with cooling packs into a cooling chamber to cool them down for hours, but cooling can be done within a few minutes while the other part of the cooling box is separated from the cover, cleaned and commissioned with new heat-sensitive products.
- In a preferred embodiment of the invention the cool pack is designed to receive solid carbon dioxide as snow, pellets and/or an shape of blocks. Different methods to produce carbon dioxide snow by expanding liquid carbon dioxide are well known and can be used to fill an integrated container as cool pack in the cover of the box with carbon dioxide snow. It is also possible to fill carbon dioxide pellets or block or bags with solid carbond dioxide in an integrated container by using special tools in a service center.
- In another preferred embodiment of the invention the coolpack contains eutectic material and has at least one coupling for coupling a supply line for a cooling fluid, which allows cooling down the cool pack via heat exchange surfaces. These heat exchange surfaces can preferably be in the interior of the cool pack, but also outer heat exchange surfaces may be used. As will be described in detail below, the cool pack with eutectic material is integrated into the cover and can be cooled by allowing a cooling fluid to flow along heat exchange surfaces. This differs from most other concepts with exchangeable cool packs or a vaporizing cooling medium like dry ice. Depending on the eutectic material used for filling the cool pack and on the working temperature range of this material the parameters of the surfaces to keep the two chambers of the box at different temperatures can be adapted.
- Also the heat exchange surfaces of the cool pack are preferably designed and dimensioned to cool the cool pack by vaporizing liquid nitrogen into the cool pack through the coupling. Although other cooling mediums like liquid carbon dioxide can be used, liquid nitrogen seems to be the most appropriate means for cooling down cool packs containing eutectic material in an economic way and without complicated couplings and exhaust systems.
- To make sure that the eutectic material in the cool pack cannot spoil the transported goods or jeopardize customers even in case of a leakage, a material should be used which is solid after cooling down and remains a gel when warmed up. Of course, a non-poisonous material should be used. Such materials are already available and used in exchangeable cool packs.
- To form a safe enclosure and/or to improve the heat exchange the eutectic material is according to another embodiment of the invention contained in a metallic housing and/or has metallic heat exchange surfaces, preferably the metallic housing forms at least a part of the heat exchange surfaces. This embodiment can be realized for example by heat exchange pipes in the interior of the eutectic material for guiding a cooling fluid or by metallic plates, preferably ripped or otherwise profiled, along which the cooling fluid flows. Internal heat exchange surfaces in the cool pack compared to outer heat exchange surfaces have the advantage that they cannot be damaged during handling and better distribute the cold in the eutectic material.
- It should be noted that the described concept makes it necessary that the cooling box according to the invention can be transported by a single person like for example beverage boxes. This restricts the outer dimensions to similar dimensions or even equal dimensions as those of beverage boxes. Under certain conditions a size up to twice the size of beverage boxes may be possible. This means that the outer dimensions length, width and height of the cooling box are 500 x 300 x 55 mm +/- 20 % for each dimension separately, preferably 10 %.
- In another embodiment of the invention the cool pack has a T-shaped cross section forming an inner part of the cover and perpendicular to this inner part a separating wall between the first and the second storage chamber. In this case the heat exchange surfaces between the cool pack and the storage chambers can be made larger and the lower part of the cooling box needs not to contain a structural wall. However, to avoid that during commissioning products are placed in the area of the separating wall stable nets on both sided may be provided to allow after commissioning to introduce the separating wall between the nets. The cool pack in a first version has such a shape that it forms at least a part of a separating wall between the first and the second storage chamber. This feature allows to establish the two storage chambers in the cooling box by inserting the cover with the cool pack and to cool down both storage chambers for a certain period of transport time. In a second version the separating wall is mounted (possibly in variable positions) in the cooling box and can be brought into heat conducting contact with the cool pack, when the cover is closed.
- As mentioned above the cooling box according to the invention is designed to being handled by a single person, having preferably a weight of less than 10 kg when empty and being designed to carry up to 15 kg as transportable load. Handholds or the like should be located at outer side walls of the cooling box in such a way that they do not disturb the loading side by side.
- In any case the shape and dimensions of the cooling box are adapted to the shape of other transport containers, in particular usual beverage boxes, to be transported together with the cooling box in a transport vehicle.
- The inner and/or the outer walls of the cooling box are preferably profiled to allow convection along the walls, preferably by means of vertical grooves. At the inner side this provides a smooth temperature profile by convection. At the outer side grooves make sure that each box in a transport vehicle finds almost the same ambient conditions not depending on the position in the transport vehicle.
- The present invention also relates to a method for transporting cooled heat-sensitive products together with other transport containers from a supply center to final customers according to
claim 13. This method comprises: - commissioning at least one cooling box as described above with cooled heat-sensitive products in the supply center,
- cooling down, filling or exchanging the cool pack of the cooling box before or during commissioning, preferably by connecting a coupling of a cool pack to a supply line supplying cooling fluid, preferably for a predetermined time interval, and then disconnecting the coupling,
- closing the cover of the cooling box,
- placing the cooling box in a transport vehicle, preferably having a bottom with a raster corresponding to a profiled bottom plate of the cooling box or already containing other transport containers or frames having an upper surface with a raster corresponding to the profiled bottom plate of the cooling box,
- placing other containers or frames, preferably having a shape corresponding to a profiled outer cover plate of the cooling box, on top of the cooling box or several similar cooling boxes,
- transporting and distributing the cooled products to final customers,
- returning the cooling box to the supply center, and
- cleaning the storage chambers of the cooling box and starting the process as described again.
- The method according to the invention allows a high throughput in a supply center as the cooling down of the cool pack, which is integrated in the cover of the cooling box can be done separately to the cleaning of the two storage chambers and the commissioning of the cooling box. As cleaning and commissioning may take a few minutes only the cool pack is designed to be cooled down also in a few minutes. For this purpose it is preferably coupled to a supply line supplying a cooling fluid for a predetermined time interval. The time interval may depend on the required amount of cooling fluid and can be controlled by usual control means. If the control means show that cooling down is completed, the coupling is disconnected and the cover can be used to close an already commissioned cooling box.
- If solid carbon dioxide as snow, pellets or blocks shall be used for cooling the cool pack, this can be done according to known methods for producing the solid carbon dioxide. However, in this case the carbon dioxide is stored in an integrated container in the cover of the box, preferably not accessible without service tools to avoid theft of cool packs, misuse or dangerous situations in the supply chain.
- Systems to fill a special container with carbon dioxide snow by spraying liquid carbon dioxide through a nozzle into the container are well known, for example from
EP 0 631 096 B1 or fromDE 10 2010 013 056 A1 - The outer shape of the cooling box allows a safe transport in a transport vehicle similar to the known transport of beverage boxes and the like, which can form stacks, when placed on top of each other. The shape of the cooling box makes it also possible to transport several of them or a mixture of beverage boxes, cooling boxes and other transport containers on a handcar or the like for distributing them to final customers. The empty cooling box is then returned to the supply center either with the transport vehicle or later by the customer, where it can be cleaned to start the whole process again.
- In a preferred embodiment the cooling fluid is liquid nitrogen, which is widely and economically available and can be released into the environment or into a nitrogen network after use for cooling down the cooling packs.
- The safest way to transport different goods in a transport vehicle is to place the heavier pieces in a lower level and to form stacks with the light weight containers on top. In relation to the present invention this means that (standard) beverage boxes form a lower layer, cooling boxes are used for one or more intermediate layers and other transport containers are placed on top of them.
- An example and details of the present invention are explained in connection with the drawing. However, the present invention is not restricted to the details of the drawing and all shown features can be used separately or in combination with each other.
- Fig. 1:
- shows a schematic perspective view of a cooling box according to the invention with a somewhat lifted up cover,
- Fig. 2:
- shows a longitudinal section through a cooling box according to
fig. 1 , - Fig. 3:
- shows an alternative embodiment of the cooling box in a schematic perspective view,
- Fig. 4:
- shows in a schematic view an overview over a transport cycle according to the invention, and
- Fig. 5:
- shows a schematic view on an automated process line for the case that coolpacks are filled with carbon dioxide snow in a supply center.
-
Fig. 1 and2 show a schematic perspective view on acooling box 1 according to the invention with a somewhat liftedcover 12 and a longitudinal section through such a cooling box, respectively. Thecooling box 1 has a thermally insulatinghousing 7 of cuboid shape and with similar dimensions as a usual beverage box. This means in particular that the length L and the width W allow placing thecooling box 1 with a profiledouter bottom plate 20 on one or two usual beverage boxes. The height H of thecooling box 1 including thecover 12 is about 500 mm +/- 20 %. Thecover 12 has a profiledouter cover plate 21 to safely carry further transport containers (not shown infig. 1 ). Thecover 12 comprises acool pack 13 containing aeutectic material 14 to keep the interior of thecooling box 1 cool. In the shown embodiment thecool pack 13 has a T-shape forming aninner part 27 of thecover 12 and perpendicular to this a separatingwall 22 between a first 9 and a second 10 storage chamber. In the interior of theeutectic material 14 or at least in contact with it aheat exchange surface 19 is provided, in the present case formed by at least one metallic pipe for guiding a coolingfluid 17 through the interior of the wholecool pack 13. The coolingfluid 17, preferably liquid nitrogen LIN, enters thecool pack 13 through acoupling 15 to which a not shown supply line can be connected. The coolingfluid 17 leaves the cool pack through anoutlet 38 either also coupled to an exhaust line or simply open to theenvironment 6. The size, shape and profile of theheat exchange surface 19 is designed to cool down the cool pack within 1 to 15 minutes by supplying liquid nitrogen LIN, which is released as gaseous nitrogen at theoutlet 38. Thecool pack 13 has at least partly ametallic housing 26. When thecover 12 is closed, thecool pack 13 has a firstouter surface 23 forming two sides of thefirst storage chamber 9 and a secondouter surface 24 forming two sides of thesecond storage chamber 10. To maintain different temperatures in the first 9 and the second 10 storage chambers the firstouter surface 24 is at least partly covered by asurface insulation 25, while the secondouter surface 24 is themetallic housing 26 itself. This results in a lower temperature in thesecond storage chamber 10, which can be used for example for transporting deep frozen food. - To keep an empty space for the separating
wall 22 while commissioning thecooling box 1 with products 2 twonets 35 can be provided. To hold the separatingwall 22 in a stable position aholder 39 for receiving an end of the separatingwall 22 is mounted on the ground of thecooling box 1.Handholds 36 allow a single person to transport thewhole cooling box 1 and a profiledouter cover plate 21 allows to safely place further transport containers (not shown) on top of at least onecooling box 1. -
Fig. 3 shows asimilar cooling box 1 like infigures 1 and2 in a schematic perspective view, but in this embodiment the separatingwall 22 is not part of thecover 12, but belongs to the thermally insulatedhousing 7 or is at least inserted therein, possibly at variable positions. This embodiment is preferred for cool packs filled with carbon dioxide snow as the low temperature of this cooling medium does not require large surface areas for keeping cool thestorage chambers cooling box 1. -
Fig. 4 gives an overview over the whole transport cycle when usingtransport boxes 1 according to the present invention. In asupply center 32 the first 9 and the second 10 storage chamber of acooling box 1 are cleaned before the commissioning with products ordered by a final customer takes place. During commissioning fresh food in placed in thefirst storage chamber 9 while deep frozen food can be placed in thesecond storage chamber 10. During cleaning and commissioning of thecooling box 1 itscover 12 is cooled down by connecting thecoupling 15 to asupply line 16, which supplies liquid nitrogen LIN as cooling fluid 17 from atank 18 to flow througheutectic material 14 in thecool pack 13 before it is released as gaseous nitrogen through anoutlet 38 into theenvironment 6 or anexhaust line 37. The supply is maintained for a predetermined filling time T or until a certain temperature of thecool pack 13 is reached. The filling may be controlled by a control circuit (not shown). After commissioning and releasing thecover 12 from thesupply line 16 thecover 12 is used to close thecooling box 1 and to establish a separatingwall 22 between the first 9 and the second 10 storage chamber. Theclosed cooling box 1 together with other such boxes is loaded into atransport vehicle 3, which receives for example alower layer 28 of (standard)beverage boxes 29, on which thecooling boxes 1 are packed. Finally,transport containers 31 for light weight goods may be packed on top of thecooling boxes 1. The bottom 4 of thetransport vehicle 3 should have araster 5 with a profile to safely transport in a form lockingmanner beverage boxes 29 orcooling boxes 1. Optionally, the compartment of thetransport vehicle 3 contains at least oneframe 33, which can safely carry on an upper surface 34cooling boxes 1, even if alower layer 28 is not completely filled withbeverage boxes 29. Thetransport vehicle 3 can now deliver beverages, food and/or other articles as ordered to final customers. At the endempty cooling boxes 1 are returned (as well asempty beverage boxes 29 and transport containers 31) to thesupply center 32, where the whole cycle can be started again. - In case of using carbon dioxide snow in the
cool pack 13 the design of the cool pack has to be adapted for this use as can be schematically seen inFig. 5 . In this case thecool pack 13 contains ahollow interior sectors nozzle 40, preferable onenozzle 40 in eachsector tank 18 via asupply line 16 into the interior 41, 42 and to thus produce carbon dioxide snow to fill thecool pack 13. This is preferably done in anautomated process line 43, which allows to stop each cover 12 at a filling position, to fill it by introducing at least one filling device into a filling opening and to transport thecover 12 after filling to its next destination in thesupply center 32. Depending on the required amount of carbon dioxide snow, one ormore sectors sectors sectors cool pack 13, as far as they can be touched by a person, have to be protected by a coating or other means to avoid injuries. - The present invention allows a safe and economic transport of different goods, including fresh food and deep frozen food to final customers. Especially the handling of heat-sensitive food is improved and the risks during transport and possible handling of cooling boxes by final customers are minimized. The cooling boxes can either be used to unload them directly with the customer or to leave them with the customer for keeping the transported food cool for another few hours and to let the customer return the cooling box. In any case the transport cycle does not require large cooling chambers for exchangeable cool packs nor takes a long time to clean, refill and cool down the returned cooling boxes.
-
- 1
- Cooling box
- 2
- Product
- 3
- Transport vehicle
- 4
- Bottom of the vehicle
- 5
- Raster of the bottom of the vehicle
- 6
- Environment
- 7
- Thermally insulating housing
- 8
- Commissioning opening
- 9
- First storage chamber
- 10
- Second storage chamber
- 11
- Upper side
- 12
- Cover
- 13
- Cool pack
- 14
- Eutectic material
- 15
- Coupling
- 16
- Supply line
- 17
- Cooling fluid
- 18
- Tank
- 19
- Heat exchange surface
- 20
- Profiled outer bottom plate
- 21
- Profiled outer cover plate
- 22
- Separating wall
- 23
- First outer surface
- 24
- Second outer surface
- 25
- Surface insulation
- 26
- Metallic housing
- 27
- Inner part of the cover
- 28
- Lower layer
- 29
- Beverage box
- 30
- Raster formed by the upper sides of beverage boxes
- 31
- Transport container
- 32
- Supply center
- 33
- Frame
- 34
- Upper surface of the frame
- 35
- Net
- 36
- Handhold
- 37
- Exhaust line
- 38
- Outlet
- 39
- Holder
- 40
- Nozzle
- 41
- Interior of the cool pack (sector)
- 42
- Interior of the cool pack (sector)
- 43
- Process line
- 44
- Inner wall
- 45
- Outer wall
- 46
- Grooves
- L
- Length
- W
- Width
- H
- Height
- T
- Filling time interval
Claims (18)
- Cooling box (1) for transporting heat-sensitive products (2) in a transport vehicle (3) and/or for distributing heat-sensitive products (2) to final customers, the cooling box (1) comprising:- a thermally insulating cuboid housing (7) with a commissioning opening (8) on an upper side (11),- a first (9) and a second (10) storage chamber both together surrounded on five sides by the housing (7) and open on the upper side (11),- a cover (12) to open and close the commissioning opening (8) of the housing (7), the cover (12) containing an integrated cool pack (13) to be filled, cooled down and/or exchanged in a supply center (32).
- Cooling box according to claim 1 with the following additional features:- a profiled outer bottom plate (20) to cooperate in a form locking manner with a certain underlying raster (5; 29),- a profiled outer cover plate (21) to carry other transport containers (30).
- Cooling box (1) according to claim 1 or 2, wherein a first outer surface (23) of the cool pack (13) being in contact with the first storage chamber (9) and a second outer surface (24) of the cool pack (13) being in contact with the second storage chamber (10) have a different area and/or profile and/or thermal surface insulation (25), which are preferably variable or exchangeable to adapt the cooling box (1) to different transport tasks.
- Cooling box (1) according to one of the preceding claims, wherein the cool pack (13) contains eutectic material (14) and having at least one coupling (15) for coupling a supply line (16) for a cooling fluid (17) and having heat exchange surfaces (19) to cool the cool pack (13) down by the cooling fluid (17).
- Cooling box (1) according to claim 4, wherein the eutectic material (14) is contained in a metallic housing (26) and/or has metallic heat exchange surfaces (19), preferably the metallic housing (26) forming at least a part of the heat exchange surfaces (19).
- Cooling box (1) according to one of claims 4 or 5, wherein the heat exchange surfaces (19) of the cool pack (13) are designed and dimensioned to cool the cool pack (13) by vaporizing liquid nitrogen (LIN) entering the cool pack (13) through the coupling (15).
- Cooling box (1) according to one of claims 4, 5 or 6, wherein the eutectic material (14) in the cool pack (13) is a solid when cooled down and is a gel at usual environmental (6) temperatures.
- Cooling box (1) according to one of claims 1 to 3, wherein the cool pack (13) is designed to be filled with carbon dioxide snow, pellets and/or blocks.
- Cooling box (1) according to one of the preceding claims, wherein the outer dimensions length (L), width (W), and height (H) of the cooling box (1) are 500 x 300 x 500 mm [Millimeters] plus/minus 20% for each separately, preferably 10%.
- Cooling box (1) according to one of the preceding claims, wherein the cool pack has a T-shaped cross section forming an inner part (27) of the cover (12) and perpendicular to this inner part (27) a separating wall (22) between the first (9) and the second (10) storage chamber.
- Cooling box (1) according to one of the preceding claims, wherein the cooling box (1) is designed to being handled by a single person, having preferably a weight of less than 10 kg [Kilograms] and being designed to carry up to 15 kg as transportable load.
- Cooling box (1) according to one of the preceding claims, wherein the shape and dimensions of the cooling box (1) are adapted to the shape of other transport containers (31), in particular usual beverage boxes (29), to be transported together with the cooling box (1).
- Cooling box (1) according to one of the preceding claims, wherein the inner walls (44) and/or the outer walls (45) of the cooling box (1) are profiled to allow convection along the walls (44, 45), preferably by means of vertical grooves (46).
- Method for transporting heat-sensitive products (2) together with other transport containers (31) from a supply center (32) to final customers, the method comprising:- commissioning at least one cooling box (1) according to one of claims 1 to 12 with cooled heat-sensitive products (2) in the supply center (32),- cooling down, filling or exchanging the cool pack (13) of the cooling box (1) before or during commissioning - closing the cover (12) of the cooling box (1),- placing the cooling box (1) in a transport vehicle (3), preferably having a bottom (4) with a raster (5) corresponding to a profiled bottom plate (20) of the cooling box (1) or already containing other transport containers (31) or frames (33) having an upper surface (34) with a raster corresponding to a profiled bottom plate (20) of the cooling box (1),- placing other containers (31) or frames (33), preferably having a shape corresponding to a profiled outer cover plate (21) of the cooling box (1) on top of the cooling box (1) or several similar cooling boxes (1),- transporting and distributing the cooled products (2) to final customers,- returning the cooling box (1) to the supply center (32), and- cleaning the storage chambers (9, 10) of the housing (7) of the cooling box (1) and starting the process as described again.
- Method according to claim 14, wherein the cooling down of the cool pack (13) in the cover (12) is done by connecting a coupling (15) to a supply line (16) supplying cooling fluid (17), preferably for a predetermined time interval (T), and then disconnecting the coupling (15) before closing the cover (12).
- Method according to claim 15, wherein liquid nitrogen (LIN) or liquid carbon dioxide is used as cooling fluid (17).
- Method according to claim 14 or 15, wherein liquid carbon dioxide is used to produce carbon dioxide snow in the cool pack (13) by spraying it through at least one nozzle (40) into the interior (41, 42) of the cool pack (13), preferably in an automated process in a process line (43), which handles and fills the covers (12) of cooling boxes (1) separately from the cooling boxes (1) during commissioning of the cooling boxes (1).
- Method according to any one of claims 14 to 17, wherein the transport vehicle (3) is provided with at least one lower layer (28) of beverage boxes (29), having an upper side forming a raster (29) corresponding to the profiled outer bottom plate (20) of the cooling box (1) before loading cooling boxes (1), and wherein other transport containers (31), preferably of lighter weight than the cooling boxes (1), are loaded on top of the cooling boxes (1).
Priority Applications (1)
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EP15166810.0A EP3090961B1 (en) | 2015-05-07 | 2015-05-07 | Cooling box and method for transporting perishables or heat-sensitive products in a transport vehicle and/or for distributing products to final customers |
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EP15166810.0A EP3090961B1 (en) | 2015-05-07 | 2015-05-07 | Cooling box and method for transporting perishables or heat-sensitive products in a transport vehicle and/or for distributing products to final customers |
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CN108046296A (en) * | 2018-01-19 | 2018-05-18 | 江西金利达钾业有限责任公司 | A kind of air cooling compressor for being used to produce potassium nitrate |
WO2019230627A1 (en) * | 2018-05-31 | 2019-12-05 | シャープ株式会社 | Packing container, and method for transporting cold-storage articles |
CN108996033A (en) * | 2018-09-21 | 2018-12-14 | 东莞久久蜜蜂智能科技有限公司 | Cold-storage plugging device, incubator and the method for replacing cold storage body |
DE102020122225A1 (en) | 2020-08-25 | 2022-03-03 | intellectual properties trading UG (haftungsbeschränkt) | Cooling containers and cooling methods, in particular for ice cream |
WO2022043394A1 (en) | 2020-08-25 | 2022-03-03 | intellectual properties trading UG (haftungsbeschränkt) | Cooling container and cooling method, in particular for ice cream |
WO2022109688A1 (en) * | 2020-11-24 | 2022-06-02 | De Castro Bozano Giulio | Transport crate for foodstuffs |
CN113788227A (en) * | 2021-07-13 | 2021-12-14 | 赵旭谦 | A thing flow box for cold chain liquid transportation |
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