EP0155290A1 - Transport container - Google Patents

Transport container

Info

Publication number
EP0155290A1
EP0155290A1 EP19840903301 EP84903301A EP0155290A1 EP 0155290 A1 EP0155290 A1 EP 0155290A1 EP 19840903301 EP19840903301 EP 19840903301 EP 84903301 A EP84903301 A EP 84903301A EP 0155290 A1 EP0155290 A1 EP 0155290A1
Authority
EP
European Patent Office
Prior art keywords
unit
transport container
container
transport
sandwich construction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP19840903301
Other languages
German (de)
French (fr)
Inventor
Thomas BJÖRK
Michael Fant
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
REFRIGERATED AIRCONTAINERS RA AB
Original Assignee
REFRIGERATED AIRCONTAINERS RA AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by REFRIGERATED AIRCONTAINERS RA AB filed Critical REFRIGERATED AIRCONTAINERS RA AB
Publication of EP0155290A1 publication Critical patent/EP0155290A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/003Transport containers

Definitions

  • This invention relates to a transport container especially but not exclusively intended for air freight and comprising a closed unit provided with one or more doors or the like and an internal cooling space.
  • a transport container especially but not exclusively intended for air freight and comprising a closed unit provided with one or more doors or the like and an internal cooling space.
  • closed units provided with an outer casing of preferably glassfibre with so-called self- -circulation, cooling of the intended goods being obtained by using dry ice developing gases which are passed through the very container.
  • the gases preferably carbonic acid
  • the gases are a security risk both for the very goods in the containers and for the passengers in the aircraft. For this reason it is normally not permitted to transport more than two containers per aircraft.
  • the carbonic acid gas has always a certain tendency to influence living products, e.g.
  • Cooling containers based on cooling by the aid of dry ice which, in addition, requires much space, have also always a limited cooling ability which is an essential disadvantage and may per se also involve great operational problems.
  • only a limited amount of dry ice can of course be brought alon and obviously unintentinal transport pauses in the form of stops on airports or the like may considerably prolong the transport time calculated from the beginning, so that the whole store of dry ice is consumed and the contents of the container run the risk of being destroyed.
  • the transport container defined in the introductory section consists of a unit built of a insulating sandwich construction with a cooler unit mounted therein, which is arranged with current supply by one or more associated rechargeable batteries. It must be possible to supply current not only from said batteries but also directly from an arbitrary outer current source.
  • the goods to be transported can e.g. be loaded into the container when this is accomodated in some form of cooling space, after which the container is closed and stowed onto a truck.
  • the cooler unit of the transport container is fed with current from the separate current supply source of the car or, as an alternative from the built-in batteries.
  • On the air terminal current is supplied by the electric mains there, e.g. a conventional one of 220 or 100 V.
  • Fig. 1 is a top plan view from one short side of a trans- port container embodied according to the principles of the invention.
  • Fig. 2 is a front plan view of the transport container illustrated in Fig. 1.
  • Fig. 5 is a top plan view of the new transport container, the roof portion of the container being removed to illustrate
  • Fig. 4 schematically shows the main portions included in the cooler unit of the new transport container.
  • the transport container illustrated in Figs. 1-3 consists of a closed unit 12 provided with an internal cooling space 10, said unit being built for an insulating sandwich construction in the form of a core 14 consisting of a DIVINYCELL material, which is surrounded on both sides by a protective covering layer 16 and 18, respectively.
  • the DIVINYCELL material consists of light cellular plastic i.e. expanded plastic with closed cells, and has a very low density.
  • the expanded plastic material is based on polyvinyl having properties which are especially suited for use for the intended purpose such as load-carrying core material in a sandwich construction. The material has a low water absorption ability and a good ability of standing heavy loads.
  • the protective covering layers 16, 18 applied upon the core material 14 are bonded to the core material by means of an adhesive especially intended for the purpose.
  • the covering layers 16, 18 advantageously consists of light aluminum plates. This gives a transport container of a very low total weight .
  • the walls 20, the roof 22, the bottom 24 and the door 26 of the cooling space are internally corrugated which contributes to increasing spreading of cooling air passing through the cooling space 10.
  • the in- and outsides of the construction are smooth which makes it easy to clean the container, as already mentioned by way of introduction.
  • One long side of the transport container on the whole consists of the light double door 26 adjustable in conventional manner by means of rail 28 and control handle 30 and resting on hinges 52 of a construction also known per se. Between the two halves of the door 52 as well as at its outer edges against the short sides of the container there are sealing jointings 34 ensuring a good insulation when the door is closed.
  • the cooler unit 56 associated with the new transport container can be embodied and placed in many different ways.
  • said unit 36 is arranged for current supply via one or more associated re ⁇ chargeable batteries 38.
  • a battery charger as well as battery eliminator not shown on the drawing belong to the unit which can also be fed with current from an outer current soruce, e.g. the conventional mains at 220 or 110 V.
  • cooler aggregate 56 projects into the transport container at one of its upper corners, the unit being accessible via a cover plate made as a door 10.
  • Figs. 1-5 the transport container is shown in resting position on a pallet bottom 42.
  • the cooler unit belonging to the transport container comprises an internal voltage source, preferably with the voltage 24 V, in the form of four battery units 38, which are connectible, as desired, in parallel or in series, to drive the electric devices of the cooler unit.
  • the cooler unit is of compressor type and, thus, comprises a compressor 44 as well as a condenser 46 connected thereto.
  • a first fan device 4S is associated with the condenser 46 and a second fan device 50 is associated with the evaporator 52 in the very cooling space 10.
  • a throttle valve 54 and a filter 56 are arranged in the line 58 between the evaporator 52 and the condenser 46 in conventional manner.
  • a thermostat 60 for control of the temperature within the desired temperature range.
  • the transport container in particular, may vary within w-ide limits for adaption to the form of various storage spaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)
  • Packages (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

Container de transport, conçu spécialement pour frêt aérien et comportant une unité fermée (12) avec un espace interne de refroidissement (11). L'unité est dotée d'une ou de plusieurs portes (26) et est fabriquée selon une construction sandwich isolante comportant un noyau (14) à base de matériau DIVINYCELL et recouvert des deux côtés par des couches de protection (16, 18), de préférence en aluminium. L'unité (12) renferme une unité de refroidissement (36) conçue pour être alimentée en électricité soit par une ou plusieurs piles rechargeables associées (38), soit par une source d'alimentation extérieure pouvant être les secteurs conventionnels de 220 ou de 110 V.Transport container, specially designed for air freight and comprising a closed unit (12) with an internal cooling space (11). The unit has one or more doors (26) and is produced in an insulating sandwich construction comprising a core (14) based on DIVINYCELL material and covered on both sides by protective layers (16, 18), preferably aluminum. The unit (12) contains a cooling unit (36) designed to be supplied with electricity either by one or more associated rechargeable batteries (38), or by an external power source which may be the conventional sectors of 220 or 110 V.

Description

Transport container
This invention relates to a transport container especially but not exclusively intended for air freight and comprising a closed unit provided with one or more doors or the like and an internal cooling space. In connection with air freight of transport containers it is previously known to use closed units provided with an outer casing of preferably glassfibre with so-called self- -circulation, cooling of the intended goods being obtained by using dry ice developing gases which are passed through the very container. However, the gases, preferably carbonic acid, are a security risk both for the very goods in the containers and for the passengers in the aircraft. For this reason it is normally not permitted to transport more than two containers per aircraft. However, the carbonic acid gas has always a certain tendency to influence living products, e.g. vegetable foodstuffs in the form of green plants or animal foodstuffs in the form of e.g. crabs, in a negative direction. This means that said food products can be subjected to non-desired colour changes . Cooling containers based on cooling by the aid of dry ice, which, in addition, requires much space, have also always a limited cooling ability which is an essential disadvantage and may per se also involve great operational problems. Thus, only a limited amount of dry ice can of course be brought alon and obviously unintentinal transport pauses in the form of stops on airports or the like may considerably prolong the transport time calculated from the beginning, so that the whole store of dry ice is consumed and the contents of the container run the risk of being destroyed. It is the object of the invention to eliminate the dis¬ advantages mentioned above in connection with known transport containers intended for air freight. The construction of the new container must be light, simultaneously as the container must be well *insulated and essentially have no cold bridges. Thus, there must be no direct contact between the in- and out¬ side of the new unit. Moreover, the insulation of the container should be very little moisture-absorbing simultaneously as its outer covering layer should have a smooth surface easy to
ftAD ORlGfNAl V % clean. Of course there should be a possibility of a simple cleaning of the inside of the container, and its interior surfaces should therefore also be smooth although they may possibly be corrugated. The intended purpose of the invention is achieved in that the transport container defined in the introductory section consists of a unit built of a insulating sandwich construction with a cooler unit mounted therein, which is arranged with current supply by one or more associated rechargeable batteries. It must be possible to supply current not only from said batteries but also directly from an arbitrary outer current source. By designing and arranging the transport container in this way it will be possible to carry through "from-door-to-door" transports without breaking or risking to break the continuous cooling line of the transported goods.
Thus, the goods to be transported can e.g. be loaded into the container when this is accomodated in some form of cooling space, after which the container is closed and stowed onto a truck. During truck transport to e.g. an airport the cooler unit of the transport container is fed with current from the separate current supply source of the car or, as an alternative from the built-in batteries. On the air terminal current is supplied by the electric mains there, e.g. a conventional one of 220 or 100 V. After stowing the container into the cargo space of the aircraft the charged batteries - preferably
24 V - are connected, or else the current supply, whenever applicable, can take place via the internal current supply source of the aircraft. The cooler unit is then fed with current in the same or similar way from the terminal of delivery to the customer, also, by the associated batteries, the conventional mains or local current supply sources. The invention will now be described in a preferred illustrative example with reference to the enclosed drawing. Fig. 1 is a top plan view from one short side of a trans- port container embodied according to the principles of the invention.
Fig. 2 is a front plan view of the transport container illustrated in Fig. 1.
Fig. 5 is a top plan view of the new transport container, the roof portion of the container being removed to illustrate
*- its interior.
Fig. 4 schematically shows the main portions included in the cooler unit of the new transport container.
The transport container illustrated in Figs. 1-3 consists of a closed unit 12 provided with an internal cooling space 10, said unit being built for an insulating sandwich construction in the form of a core 14 consisting of a DIVINYCELL material, which is surrounded on both sides by a protective covering layer 16 and 18, respectively. The DIVINYCELL material consists of light cellular plastic i.e. expanded plastic with closed cells, and has a very low density. The expanded plastic material is based on polyvinyl having properties which are especially suited for use for the intended purpose such as load-carrying core material in a sandwich construction. The material has a low water absorption ability and a good ability of standing heavy loads. Besides, it is resistent to many chemicals and, moreover, selfquenching which is particularly advantageous when used in aircrafts. The protective covering layers 16, 18 applied upon the core material 14 are bonded to the core material by means of an adhesive especially intended for the purpose. The covering layers 16, 18 advantageously consists of light aluminum plates. This gives a transport container of a very low total weight . In the embodiment shown on the drawing the walls 20, the roof 22, the bottom 24 and the door 26 of the cooling space are internally corrugated which contributes to increasing spreading of cooling air passing through the cooling space 10. Moreover, the in- and outsides of the construction are smooth which makes it easy to clean the container, as already mentioned by way of introduction.
One long side of the transport container on the whole consists of the light double door 26 adjustable in conventional manner by means of rail 28 and control handle 30 and resting on hinges 52 of a construction also known per se. Between the two halves of the door 52 as well as at its outer edges against the short sides of the container there are sealing jointings 34 ensuring a good insulation when the door is closed.
The cooler unit 56 associated with the new transport container can be embodied and placed in many different ways.
_OM
' iy% OfitGtftAl W1P What is essential in this connection is that said unit 36 is arranged for current supply via one or more associated re¬ chargeable batteries 38. Moreover, a battery charger as well as battery eliminator not shown on the drawing belong to the unit which can also be fed with current from an outer current soruce, e.g. the conventional mains at 220 or 110 V.
As is apparent from the drawing the cooler aggregate 56 projects into the transport container at one of its upper corners, the unit being accessible via a cover plate made as a door 10. In Figs. 1-5 the transport container is shown in resting position on a pallet bottom 42.
As appears from Fig. 4 the cooler unit belonging to the transport container comprises an internal voltage source, preferably with the voltage 24 V, in the form of four battery units 38, which are connectible, as desired, in parallel or in series, to drive the electric devices of the cooler unit. The cooler unit is of compressor type and, thus, comprises a compressor 44 as well as a condenser 46 connected thereto. A first fan device 4S is associated with the condenser 46 and a second fan device 50 is associated with the evaporator 52 in the very cooling space 10. A throttle valve 54 and a filter 56 are arranged in the line 58 between the evaporator 52 and the condenser 46 in conventional manner. Moreover, in the cooling space there is a thermostat 60 for control of the temperature within the desired temperature range.
Modifications of the transport container described above can be made within the scope of the invention. The container form, in particular, may vary within w-ide limits for adaption to the form of various storage spaces.

Claims

Patent Claims
1. A transport container especially but not exclusively intended for air freight and comprising a closed unit (12) provided with one or more doors (26) or the like and an in¬ ternal cooling space (10) , c h a r a c t e r i z e d in that the unit is built of an insulating sandwich construction with a cooler unit (36) mounted therein which is arranged for current supply via one or more associated rechargeable batteries (38) .
2. The transport container as claimed in claim 1, c h a r a c t e r i z e d in that the cooler unit (36) also comprises a battery charger.
3. The transport container as claimed in claim 1 or 2, c h a r a c t e r i z e d in that the sandwich construction comprises a core (16) consisting of DIVINYLCELL material, on both main sides of which protective layers (16,18) , prefer¬ ably in the form of aluminum plate, are attached by means of an adhesive.
4. The transport container as claimed in any one of claims 1-3, c h a r a c t e r i z e d in that the cooler unit (36) together with associated batteries (38) project into the interior of the unit but are accessible from the outside thereof, preferably via a door (40) or the like.
5. The transport container as claimed in any one of claims 1-4, c h a r a c t e r i z e d in that it is arranged to be fed with current either from the rechargeable batteries (38) or from an outer current source, e.g. the conventional mains at 220 or 100 V.
EP19840903301 1983-09-09 1984-09-07 Transport container Withdrawn EP0155290A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8304848 1983-09-09
SE8304848A SE8304848L (en) 1983-09-09 1983-09-09 shipping container

Publications (1)

Publication Number Publication Date
EP0155290A1 true EP0155290A1 (en) 1985-09-25

Family

ID=20352433

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840903301 Withdrawn EP0155290A1 (en) 1983-09-09 1984-09-07 Transport container

Country Status (4)

Country Link
EP (1) EP0155290A1 (en)
AU (1) AU3395384A (en)
SE (1) SE8304848L (en)
WO (1) WO1985001274A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2265701B (en) * 1992-03-31 1995-09-20 Somers Specialised Vehicles Li Thermal insulation of vans
FR2692234B1 (en) * 1992-06-16 1995-02-10 Beaumont Jean Pierre Waterproof unit for the transport and / or storage of fresh products.
FR2726255B1 (en) * 1994-10-26 1996-11-29 Pigeaud Philippe COLD AND SELF-CONTAINED CONTAINER FOR AIR TRANSPORT OF PERISHABLE FOODSTUFFS
AU769407B2 (en) * 1999-07-21 2004-01-29 Christopher Robin Hill Refrigerated air freight container
US6813898B2 (en) * 1999-07-21 2004-11-09 Leslie John Lindsay Refrigerated air freight container
AUPQ174299A0 (en) * 1999-07-21 1999-08-12 Hill, Christopher Robin Refrigerated air freight container
US7765831B2 (en) 2005-09-30 2010-08-03 Thermo King Corporation Temperature control system and method of operating same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1938141A (en) * 1932-05-19 1933-12-05 Goldkind Mordecai Portable electric refrigerator and casing therefor
FR2006351A1 (en) * 1969-04-16 1969-12-26 Siemens Ag Container having one or more pettier elements - for isothermal transport of e.g blood
DE3147303A1 (en) * 1981-11-28 1983-06-01 Franz 7080 Aalen Zander Current generator for refrigerating machines on containers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8501274A1 *

Also Published As

Publication number Publication date
AU3395384A (en) 1985-04-11
SE8304848L (en) 1985-03-10
SE8304848D0 (en) 1983-09-09
WO1985001274A1 (en) 1985-03-28

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI LU NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850813

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FANT, MICHAEL

Inventor name: BJOERK, THOMAS