SE544335C2

SE544335C2 - Freight container comprising a climate arrangement and method for controlling the climate arrangememt

Info

Publication number: SE544335C2
Application number: SE2051162A
Authority: SE
Inventors: Anders Herolf; Lars Edvinsson
Original assignee: Envirotainer Eng Ab
Priority date: 2020-10-02
Filing date: 2020-10-02
Publication date: 2022-04-12
Also published as: EP4222080A1; WO2022071857A1; SE2051162A1; US20230348178A1

Abstract

A freight container (10) and a method for controlling a climate-conditioned air-flow in a freight container. The freight container comprises: a cargo compartment being defined by a floor (16), a ceiling (14) and walls (18a-d) wherein the ceiling comprises an inner portion (40) and an outer portion (24) defining a first space (26). The freight container further comprises a climate arrangement (50), configured for providing a climate-conditioned air-flow (100) into said cargo compartment of said freight container. At least one of said walls comprises an inner wall portion (17a, 42) and an outer wall portion (17b, 32) defining a second space (19a, 19b), wherein said first space is fluidically connected to said second space, and said inner wall portion comprises at least one aperture (110) between said second space and said cargo compartment. The climate arrangement is configured to provide said climate-conditioned air-flow into said cargo compartment of said freight container via said first space, said second space and said at least one aperture.

Description

The present invention generally relates to the field of freightcontainers. More specifically, the present invention relates to climate arrangements in freight containers.

BACKGROUND OF THE INVENTION A substantial part of goods that is transported around the World todayrequires or benefits from having a climate-controlled environment around thegoods Within the freight containers. In particular, many pharmaceuticalcompanies are today using air transportation to ship temperature-sensitivemedicals. The shipments are often governed under regulatory demands andstipulate control of the temperature during the entire shipment. A commondemand is to keep the shipment temperature Within intervals, such as e.g. 2-8°C or 15-25°C. Goods like vaccines and insulin are two common medicalsthat require a strict temperature of 2-8°C during the Whole shipment to itsdestination. Hence, the demands on temperature control are rigorous, astemperature sensitive goods may be destroyed or deteriorated if they areexposed to too high and/ or too low temperatures during transportation.

In combination With the demands of temperature control of the freightcontainers as described above, there is also a need to inhibit a displacement ofthe goods during transportation in order to provide a safe and reliabletransportation of the goods. Furthermore, it is desirable to optimize the cargocompartment of the freight containers. More specifically, it should be notedthat cargo compartments in the prior art often cannot provide an optimumloading, transportation and/ or de-loading of the goods.

Hence, there is a need to provide a freight container Which can provide a reliable temperature regulation of the freight container Whilst at the same time lO inhibiting a displacement of the goods during transportation and providing an improved cargo compartment for handling and/ or transportation of goods.

SUMMARY OF THE INVENTION It is an object of the present invention to mitigate one or more of theabove problems and to provide a freight container Which can provide a reliabletemperature regulation of the freight container Whilst at the same timeinhibiting a displacement of the goods during transportation and providing animproved cargo compartment for handling and/ or transportation of goods.

This and other objects are achieved by providing a freight containerand a method having the features in the independent claims. Preferredembodiments are defined in the dependent claims.

Hence, according to a first aspect of the present invention, there isprovided a freight container comprising a cargo compartment being definedby a ﬂoor, a ceiling and Walls. The ceiling of the cargo compartmentcomprises an inner portion and an outer portion defining a first space. Thefreight container further comprises a climate arrangement, configured forproviding a climate-conditioned air-ﬂoW into the cargo compartment of thefreight container. The climate-conditioned air-ﬂoW is provided in vicinity ofthe ceiling of the cargo compartment. At least one of the Walls comprises aninner Wall portion and an outer Wall portion defining a second space. Thefirst space is ﬂuidically connected to the second space, and the inner Wallportion comprises at least one aperture between the second space and thecargo compartment. The climate arrangement is configured to provide theclimate-conditioned air-ﬂoW into the cargo compartment of the freightcontainer via the first space, the second space and the at least one aperture.

According to a second aspect of the present invention, there isprovided a method for controlling a climate-conditioned air-ﬂoW in a freightcontainer. The method comprises the step of providing, by a climatearrangement, a climate-conditioned air-ﬂoW into a cargo compartment of thefreight container, Wherein the cargo compartment is defined by a ﬂoor, aceiling and Walls, Wherein the ceiling comprises an inner portion and an outer portion defining a first space, and Wherein the climate-conditioned air- lO ﬂoW is provided in vicinity of the ceiling of the cargo compartment. Themethod further comprises the step of providing the climate-conditioned air-ﬂoW into the cargo compartment of the freight container via the first spaceand a second space defined by an inner Wall portion and an outer Wallportion of at least one of the Walls, Wherein the first space is ﬂuidicallyconnected to the second space and Wherein and the inner Wall portioncomprises at least one aperture between the second space and the cargocompartment.

Thus, the freight container according to the invention is based on theidea of providing a climate arrangement Which is able to distribute a climate-conditioned air-ﬂoW into the cargo compartment of the freight container froma passage at the ceiling, via one or more passages in one or more Walls, andinto the cargo compartment via one or more apertures of the one or moreWalls. By this arrangement, the freight container provides a reliabletemperature regulation Whilst at the same time providing an improved cargocompartment for a secure fastening of the goods Which consequently inhibits adisplacement of the goods transported therein. Furthermore, the freightcontainer provides a facilitated handling of the goods into and out of the cargocompartment.

As the innovative climate arrangement of the present invention maydistribute a climate-conditioned air-ﬂoW into the cargo compartment via thefirst and second passages of the of the ceiling and Wall(s), respectively, andfurthermore via the aperture(s) of the Wall(s), the present invention isadvantageous in that the cargo compartment of the freight container may beoptimized for inhibiting a displacement of the goods during transportationand for an improved and facilitated handling of the goods. More specifically,compared to a distribution of an air-ﬂoW into a cargo compartment viaequipment such as elements, components, units, ducts, piping, etc., arrangedinside the cargo compartment, the present invention provides a freightcontainer Wherein the climate arrangement is provided separately from thecargo compartment. In other Words, the freight container of the presentinvention provides a reliable temperature regulation Whilst at the same time avoiding an obstruction of the space of the cargo compartment. lO The present invention is advantageous in that the cargo compartmentof the freight container, Wherein the cargo compartment is defined by the ﬂoor,ceiling and/ or Walls, may be optimized for a secure fastening of the goods byvirtue of its innovative climate arrangement. Notably, the parts of the ﬂoor,ceiling and/ or Walls facing the cargo compartment may, for example, bedesigned to be (completely) ﬂat. This is highly advantageous in that goodsmay be arranged such that they are in direct contact With the Wall(s), andthat the goods hereby may be securely fastened. Hence, the cargocompartment of the freight container inhibits an undesirable displacement ofthe goods during transportation. It Will be appreciated that the innovativeconcept of the present invention furthermore results in an increased loadingcapacity of the cargo compartment.

The present invention is further advantageous in that a facilitatedhandling of the goods related to loading and/ or de-loading of the goods into(out of) the cargo compartment may be provided. Notably, as the cargocompartment may be provided Without equipment of the climate arrangementsuch as elements, components, units, ducts, piping, etc., the present inventionmitigates any interference With equipment of this kind e. g. during a loadingand/ or de-loading operation of goods.

The present embodiment is further advantageous in that the climatearrangement mitigates, or even completely avoids, any inﬂicted damage onthe goods and/ or any equipment for handling the goods, during loading,transportation and/ or de-loading of the goods. Compared to climatearrangements comprising obstructive and/ or projecting equipment Withinthe cargo compartment, Which may damage the goods upon contact, theinnovative concept of the present invention may lead to a safer handlingand/ or transportation of goods.

There is provided a freight container comprising: a cargocompartment being defined by a ﬂoor, a ceiling and Walls. Hence, the ﬂoor,ceiling and Walls define the cargo compartment, Which may be formed as acube or a rectangular cuboid (parallelepiped). The ceiling of the cargocompartment comprises an inner portion and an outer portion defining a first space. Hence, the ceiling defines a first space, Which furthermore may lO be denoted as a passage, a duct, or the like. The freight container comprisesa climate arrangement, configured for providing a climate-conditioned air-ﬂoW into the cargo compartment of the freight container. By "climatearrangement", it is here meant substantially any arrangement, device or unitWhich is able to provide a climate-conditioned air-ﬂoW. The climate-conditioned air-ﬂoW is provided in vicinity of the ceiling of the cargocompartment. At least one of the Walls of the cargo compartment comprisesan inner Wall portion and an outer Wall portion defining a second space.Hence, one or more of the Walls define(s) a second space, Which furthermoremay be denoted as a passage, a duct, or the like. The first space is ﬂuidicallyconnected to the second space. Hence, the first and second spaces areconnected or coupled ﬂuidically such that an air ﬂoW may pass from the firstspace to the second space. The inner Wall portion(s) of the Wall(s) of the cargocompartment comprise(s) at least one aperture between the second spaceand the cargo compartment. The climate arrangement is configured toprovide the climate-conditioned air-ﬂoW into the cargo compartment of thefreight container via the first space and the second space. Hence, the climatearrangement is configured to pass an air ﬂoW from the first space, via thesecond space, and into the cargo compartment via the aperture(s).

According to an embodiment of the present invention, the at least oneaperture may be provided in vicinity of the ﬂoor.

According to an embodiment of the present invention, at least one ofthe Walls comprises an inner Wall portion and an outer Wall portion defininga third space, Wherein the cargo compartment of the freight container isﬂuidically connected to the third space and Wherein the climate arrangementis configured to return a residual air-ﬂoW of the climate-conditioned air-ﬂoWfrom the cargo compartment of the freight container via the third space. Thepresent embodiment is advantageous in that the construction of the freightcontainer provides an efficient circulation of the climate-conditioned air-ﬂoWin the freight container.

According to an embodiment of the present invention, the third spacecomprises an auXiliary passage arranged in vicinity of the inner portion of the ceiling, Wherein an inlet of the auXiliary passage is arranged between a lO top part of the inner Wall portion and the inner portion of the ceiling. Itshould be noted that upper parts of the cargo arranged in the cargocompartment, and in particular if arranged against one or more Walls of thecargo compartment, may be subjected to a too cold (or Warm) air-ﬂoW fromthe climate arrangement. The present embodiment is hereby advantageousin that the inlet of the auxiliary passage is configured to lead a portion of theclimate-conditioned air-ﬂoW from a top part of the cargo compartment of thefreight container to the climate arrangement.

According to an embodiment of the present invention, the Walls maycomprise two oppositely arranged side Walls, a door and a back Wallarranged oppositely the door, Wherein the side Walls define the second space,and the back Wall defines the third space.

According to an embodiment of the present invention, the innerportion may comprise an opening between the first space and the cargocompartment in vicinity of the door. Hence, the inner portion of the ceiling ofthe cargo compartment comprises an opening, and the climate arrangementis configured to provide a portion of the climate-conditioned air-ﬂoW into thecargo compartment of the freight container via the opening. The presentembodiment is advantageous in that the provision of the climate-conditionedair-ﬂoW in vicinity of the door may reduce the amount of external gas beingable to enter into the cargo compartment When the freight container door(s)is (are) opened.

According to an embodiment of the present invention, the climatearrangement may be configured to control a ratio between the climate-controlled air-ﬂoW to be provided into the cargo compartment via the at leastone aperture and the portion of the climate-controlled air-ﬂoW to be providedinto the cargo compartment via the at least one opening. The presentembodiment is advantageous in that the climate arrangement is configuredto efficiently determine the amount of climate-controlled air-ﬂoW to bedistributed via the aperture(s) With respect to the amount of climate-controlled air-ﬂoW to be distributed via the opening.

According to an embodiment of the present invention, the climate arrangement may be configured to provide the climate-conditioned air-ﬂoW lO into the cargo compartment via the at least one aperture as a function of theposition of the at least one aperture in the inner wall portion. The presentembodiment is advantageous in that the climate arrangement may, to aneven further extent, customize the distribution of the climate-controlled airﬂow into the cargo compartment of the freight container.

According to an embodiment of the present invention, aconcentration of the at least one aperture increases in a direction of thecargo compartment from the back wall towards the door. In other words, thedistribution (or number) of apertures in the inner wall portion, between thesecond space and the cargo compartment, increases in a direction of thecargo compartment from the back wall towards the door. Considering thatthe climate-conditioned air-ﬂow may be heated in its way from the climatearrangement behind the back wall towards the door in the ceiling, there maybe a need of a larger ﬂow in an area of the cargo compartment in vicinity ofthe door compared to an area of the cargo compartment in vicinity of theback wall.

According to an embodiment of the present invention, the freightcontainer further comprises at least one spacer arranged on at least one ofthe door and the back wall.

According to an embodiment of the second aspect of the presentinvention, the step of providing the climate-conditioned air-ﬂow into the cargocompartment via the at least one aperture is performed as a function of theposition of the at least one aperture in the inner wall portion.

According to an embodiment of the second aspect of the presentinvention, the walls comprise two oppositely arranged side walls, a door anda back wall arranged oppositely the door, wherein the inner portion comprisesan opening between the first space and the cargo compartment in vicinity ofthe door. The step of providing the climate-conditioned air-ﬂow into the cargocompartment comprises controlling a ratio between the climate-controlled air-ﬂow to be provided into the cargo compartment via the at least one apertureand the climate-controlled air-ﬂow to be provided into the cargo compartment via the at least one opening.

Further objectives of, features of, and advantages with, the presentinvention will become apparent when studying the following detaileddisclosure, the drawings and the appended claims. Those skilled in the artwill realize that different features of the present invention can be combined to create embodiments other than those described in the following.

BRIEF DESCRIPTION OF THE DRAWINGS This and other aspects of the present invention will now be describedin more detail, with reference to the appended drawings showingembodiment(s) of the invention.

Figs. 1A and 1B schematically show a freight container according toan exemplifying embodiment of the present invention.

Fig. 2 schematically shows a freight container according to an exemplifying embodiment of the present invention.

DETAILED DESCRIPTIONFig. 1A schematically shows a freight container 10 according to an eXemplifying embodiment of the present invention. It will be appreciated thatthe freight container 10 may be substantially any container for the purposeof goods transportation. Preferably, the freight container 10 is an airfreightcontainer, arranged for transportation in aircraft. The freight container 10 isdefined by an outer shell 12. Within the outer shell 12, the freight container10 comprises a cargo compartment 20 being defined by a ﬂoor 16, a ceiling14 and walls 18a-c. The ceiling 14 of the cargo compartment 20 comprisesan inner portion 40 and an outer portion 24 def1ning a first space 26. Thefreight container 10 further comprises a climate arrangement 50, conﬁguredfor providing a climate-conditioned air-ﬂow 100 into the cargo compartment20 of the freight container 10. The climate-conditioned air-ﬂow 100 isprovided in vicinity of the ceiling 14 of the cargo compartment 20. Morespecifically, and according to the example of Fig. 1A, the climate controlsystem 50 is situated in a control compartment 30 that is separated from thecargo compartment 20 by an outer wall portion 32. Upon operation, the climate control system 50 provides an air-ﬂow 102 going out from the climate control system 50 through an output pipe 36. The inner portion 40of the ceiling 14 does not cover all the distance to the walls and leaves anopening for a climate-conditioned air-ﬂow to ﬂow into the main cargocompartment 20. For example, the inner portion 40 of the ceiling 14comprises an opening 21, wherein the climate arrangement 50 is configuredto provide the climate-conditioned air-ﬂow 100 into the cargo compartmentof the freight container via the opening 21. Furthermore, the freightcontainer 10 comprises an inner wall portion 43 in form of a plate which isarranged parallel to, and in vicinity of, the wall 18b. A portion 111 of theclimate-conditioned air ﬂow 100 is arranged to pass between the inner wallportion 43 and the wall 18b and into the cargo compartment 20 at thebottom of the inner wall portion 43 in vicinity of the ﬂoor 16.

Likewise, there is in this particular embodiment also an inner wallportion 42, placed with a small distance to the wall separating the cargocompartment 20 from the control compartment 30. Gas leaving the cargocompartment 20 ﬂows beneath the edge of the inner wall portion 42 andupwards along the wall into the input pipe 38.

At least one of the walls 18a-c comprises an inner wall portion andan outer wall portion def1ning a second space (indicated in Fig. 1B). The firstspace 26 is ﬂuidically connected to the second space, and the climate-conditioned air-ﬂow 100 is hereby arranged to ﬂow 108 into the cargocompartment 20 via the first space and the second space. It will beappreciated that the ﬂow 108 is indicated by dashed arrows on the inside ofwall 18a, as the ﬂow 108 is arranged to pass through the second space beingdefined by the inner and outer wall portions of the wall 18a.

The inner wall portion comprises at least one aperture 110 betweenthe second space and the cargo compartment 20. It should be noted that thefreight container 10 may be provided with any number of apertures 110, andthat the number of apertures 110 in Fig. 1A is shown as an example.Furthermore, in Fig. 1A, the apertures 110 are exemplified as being providedin vicinity of the ﬂoor 16, but the apertures 110 may alternatively beprovided at other positions of the inner wall portion. The climate arrangement 50 may be conf1gured to provide the climate-conditioned air- ﬂow 100 into the cargo compartment 20 via the apertures 110 as a functionof the position of the apertures 110 in the inner Wall portion. It will beappreciated that the inner wall portion 43 may comprise apertures at thebottom part of the inner wall portion 43 in vicinity of the ﬂoor 16 forproviding the portion 111 of the climate-conditioned air-ﬂow 100 into thecargo compartment 20.

According to the eXemplifying embodiment of the freight container inFig. 1A, the apertures 110 are evenly distributed between in the wall 18a.However, the apertures 110 may alternatively have a higher concentration ina vicinity of one of the walls 18a-c and/ or that the concentration of theapertures increases in a direction of the cargo compartment, e. g. from wall18c towards wall 18b.

The inner wall portion 42 is placed with a small distance to the outerwall portion 32. The inner wall portion 42 and the outer wall portion 32define a third space 34. The cargo compartment 20 of the freight container10 is ﬂuidically connected to the third space 34, and the climatearrangement 50 is configured to return a residual (return) air-ﬂow 104 of theclimate-conditioned air-ﬂow 100 from the cargo compartment 20 via thethird space 34. Here, the climate control system 50 receives the residual(return) air-ﬂow 104 through an input pipe 38.

In the example of Fig. 1A, the walls 18a-c of the freight container 10comprise two oppositely arranged side walls, namely wall 18a and the walloppositely arranged wall 18a (not indicated). The walls 18a-c furthercomprise a door 18b and a back wall 18c arranged oppositely the door 18b.According to the above, the wall 18a and the wall arranged oppositely wall18a define a part of the second space, through which the ﬂow 108 isarranged to pass. The back wall 18c def1nes the third space through whichthe residual (return) air-ﬂow 104 is arranged to pass.

Fig. 1B schematically shows a freight container 10 according to aneXemplifying embodiment of the present invention. It will be appreciated thatFig. 1B shows the freight container 10 as exemplified in Fig. 1A in analternative view "through" the wall/ door 18b and towards the back wall 18c.

Furthermore, as some references and/ or functions of the freight container 11 are omitted in Fig. 1B compared to Fig. 1A, it is referred to Fig. 1A for anincreased understanding.

In Fig. 1B, the cargo compartment 20 of the freight container 10 isdefined by a ﬂoor 16, a ceiling 14 and walls 18 (of which only oppositelyarranged walls 18a and 18d are indicated). The ceiling 14 of the cargocompartment 20 comprises an inner portion 40 and an outer portion 24defining a first space 26. Upon operation, the climate control system (notshown) provides a climate-conditioned air-ﬂow 100 to ﬂow 108 into the maincargo compartment.

The walls 18a, 18d comprise an inner wall portion 17a and an outerwall portion 17b, respectively, defining a second space 19a, 19b. The firstspace 26 is ﬂuidically connected to the second space 19a, 19b, and theclimate-conditioned air-ﬂow 100 is hereby arranged to ﬂow 108 into thecargo compartment 20 via the first space 26 and the second space 19a, 19b.

The inner wall portion 17a comprises apertures 110 between thesecond space 19a, 19b and the cargo compartment 20. In Fig. 1B, theapertures 110 are eXemplified as being provided in vicinity of the ﬂoor 16,but the apertures 110 may alternatively be provided at other positions of theinner wall portion 17a.

The climate arrangement is configured to return a residual (return)air-ﬂow 104 of the climate-conditioned air-ﬂow 100 from the cargocompartment 20 via a third space (shown in Fig. 1A).

Fig. 2 schematically shows a portion of a freight container accordingto an eXemplifying embodiment of the present invention. For reasons ofsimplicity, Fig. 2 indicates the upper leftmost portion of the freight container10 as exemplified in Fig. 1A and the associated text. However, Fig. 2 showsan alternative configuration of this part of the freight container. Morespecifically, the freight container comprises an auXiliary passage 106 invicinity of the inner portion 40 of the ceiling. The inlet 108 of the auXiliarypassage 106 is a slit which is provided between a top part of the inner wallportion 42 and the inner portion 40 of the ceiling, wherein the slit elongatesalong the length of the inner wall portion 42. The auXiliary passage 106 is provided between the inner wall portion 42 and an isolating element 107. 12 The isolating element 107 is in turn arranged adjacent the climatearrangement 50.

The person skilled in the art realizes that the present invention by nomeans is limited to the preferred embodiments described above. On thecontrary, many modifications and Variations are possible Within the scope ofthe appended claims. For example, one or more of the cargo compartment20, the climate arrangement 50 and/ or the apertures 110, etc., may have different shapes, dimensions and/ or sizes than those depicted / described.

Claims

1. 1. A freight container (10), comprising: - a cargo compartment (20) being defined by a ﬂoor (16), a ceiling (14)and Walls (18a-d) Wherein the ceiling comprises an inner portion (40) and anouter portion (24) def1ning a first space (26) ; - a climate arrangement (50), configured for providing a climate- .~\\ conditioned air-ﬂoW o: into said cargo compartment of said freightcontainer; Wherein said climate-conditioned air-ﬂoW is provided in vicinity ofsaid ceiling of said cargo compartment;characterized in that - at least one of said Walls comprises an inner Wall portion (17a, 42)and an outer Wall portion (17b, 32) def1ning a second space (19a, 19b); - said first space is ﬂuidically connected to said second space, andsaid inner Wall portion comprises at least one aperture (110) between saidsecond space and said cargo compartment; Wherein said climate arrangement is configured to provide saidclimate-conditioned air-ﬂoW into said cargo compartment of said freightcontainer via said first space, said second space and said at least one aperture.

2. The freight container according to claim 1, characterized in that said at least one aperture is provided in vicinity of said ﬂoor.

3. The freight container according to claim 1 or 2, characterized inthat at least one of said Walls comprises an inner Wall portion (42) and anouter Wall portion (32) def1ning a third space (34), Wherein said cargocompartment of said freight container is ﬂuidically connected to said thirdspace and Wherein said climate arrangement is configured to return aresidual air-ﬂoW (104) of said climate-conditioned air-ﬂoW from said cargo compartment of said freight container via said third space.

4. The freight container according to claim 3, characterized in thatsaid third space comprises an auxiliary passage (106) arranged in vicinity ofsaid inner portion of said ceiling, wherein an inlet (108) of said auxiliarypassage is arranged between a top part of said inner wall portion and said inner portion of said ceiling.

5. The freight container according to claim 3 or 4, characterized inthat said walls comprise two oppositely arranged side walls (18a, 18d), adoor (18b) and a back wall (18c) arranged oppositely said door, wherein saidside walls define said second space, and said back wall defines said third space.

6. The freight container according to claim 5, characterized in thatsaid inner portion comprises an opening (21) between said first space andsaid cargo compartment in vicinity of said door, wherein said climatearrangement is configured to provide a portion (111) of said climate-conditioned air-ﬂow into said cargo compartment of said freight container via said opening.

7. The freight container according to claim 6, characterized in thatsaid climate arrangement is configured to control a ratio between saidclimate-controlled air-ﬂow to be provided into said cargo compartment viasaid at least one aperture and said portion of the climate-controlled air-ﬂow to be provided into said cargo compartment via said at least one opening.

8. The freight container according to any one of claims 1 - 7,characterized in that said climate arrangement is configured to provide theclimate-conditioned air-ﬂow into said cargo compartment via said at leastone aperture as a function of the position of said at least one aperture in said inner wall portion.

9. The freight container according to any one of claims 5 - 7 and claim8, characterized in that a concentration of said at least one aperture, bythe number of said at least one aperture, increases in a direction of the cargo compartment from said back Wall towards said door.

10. The freight container according to any one of claims 5 - 7,characterized in that said freight container further comprises at least one spacer arranged on at least one of said door and said back Wall.

11. A method for controlling a climate-conditioned air-ﬂoW in a freight containermﬁliš §~,_, comprising the steps of: - providing, by a climate arrangement___s§_iff:l_§§=_§_, a climate-conditioned air- ﬂow =_§___into a cargo compartment_ “' ._ of said freight container; said cargo compartment being defined by a ﬂoor___'" "l -\.. .__ ....... .t and Walls___=§_§ Wherein the ceiling comprises an inner portion and an outer portion I defining a first spacems; Wherein said climate-conditioned air-ﬂoW is provided in vicinity ofsaid ceiling of said cargo compartment,characterized by the further steps of: - providing said climate-conditioned air-ﬂoW into said cargo compartment of said freight container via said first space and a second space ' ,_ defined by an inner Wall portion and an outer Wall portion *_ of at least one of said Walls, Wherein said first space is ﬂuidically connected to said second space and Wherein said inner Wall portion comprises at least one aperture ff U'Q»åooÖwå.9-woooÖ9-w'Ü93oo93Ö9- said cargo compartment.

12. The method according to claim 11, characterized in that said step ofproviding said climate-conditioned air-ﬂoW into said cargo compartment viasaid at least one aperture is performed as a function of the position of said at least one aperture in said inner Wall portion.

13. The method according to claim 11 or 12, Wherein said Walls comprisetwo oppositely arranged side Walls (18a, 18d), a door (18b) and a back Wall(18c) arranged oppositely said door, Wherein said inner portion comprises anopening _slj.}š¿_j't_fs___between said ﬁrst space and said cargo compartment in vicinityof said door, characterized in that said step of providing said climate-conditioned air-ﬂoW into said cargo compartment comprises controlling aratio between the climate-controlled air-ﬂoW to be provided into said cargocompartment via said at least one aperture and the climate-controlled air-ﬂow to be provided into said cargo compartment via said at least one opening.