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EP1233243B1 - Isothermal container - Google Patents

Isothermal container Download PDF

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Publication number
EP1233243B1
EP1233243B1 EP02290354A EP02290354A EP1233243B1 EP 1233243 B1 EP1233243 B1 EP 1233243B1 EP 02290354 A EP02290354 A EP 02290354A EP 02290354 A EP02290354 A EP 02290354A EP 1233243 B1 EP1233243 B1 EP 1233243B1
Authority
EP
European Patent Office
Prior art keywords
container according
cover
diffuser cover
polypropylene
container
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.)
Expired - Lifetime
Application number
EP02290354A
Other languages
German (de)
French (fr)
Other versions
EP1233243A1 (en
Inventor
Jean Patrice Cabinet Ballot Quenedey
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.)
BCF
COLD PACK SYSTEM
Original Assignee
BCF Holding
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Filing date
Publication date
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Publication of EP1233243A1 publication Critical patent/EP1233243A1/en
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Publication of EP1233243B1 publication Critical patent/EP1233243B1/en
Anticipated expiration legal-status Critical
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Classifications

    • 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
    • B65D81/18—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 providing specific environment for contents, e.g. temperature above or below ambient
    • 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
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
    • F25D3/125—Movable containers
    • 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
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/804—Boxes

Definitions

  • the subject of the present invention relates to a on-board cooling device to maintain fresh food from storage to the delivery to the end consumer.
  • Foodstuffs concerned are essentially fresh products processed or unprocessed animal origin and vegetable.
  • the device according to the invention must be able to ensure the conservation of fresh produce at a positive temperature of the order of 0 to +4 degrees Celsius (° C).
  • Maintaining the storage temperature must be strictly respected because the transition to higher temperature may develop flora microbial and therefore make dangerous the consumption of products for the consumer.
  • the goal proposed by The present invention is to overcome the disadvantages mentioned above by providing a small insulated container expensive, simple to perform, ensuring preservation perfect fresh food and can be transported easily on a light vehicle motorized with two or three wheels or by any other means transport equipment not equipped with refrigeration equipment to the place of delivery.
  • a container isotherm for the storage and transportation of products fresh food for maintaining these products at their storage temperature from preferably between 0 and 4 ° C comprising a tray provided on all of its inner faces of a covering in insulating material, said container being characterized in what it includes in addition a diffuser cover provided with a self-contained refrigerant source connected to a thermal bridge through a nacelle of support for maintaining said temperature of storage inside the tank for a period determined, and an insulating cover that caps said diffuser cover for thermally insulating all.
  • Figure 1 shows an exploded view of a isothermal container.
  • the isothermal container includes everything first a tray 2, of parallelepipedic shape, preferably made of polypropylene which can be used for food
  • the tray 2 is intended to be nestable and stackable and includes external dimensions standards.
  • the covering 3 of material insulation is made in one piece and marries perfectly the inner forms of the tray 2 in polypropylene.
  • a diffuser cover 4 with integrated cooling means is planned to be arranged on the top of the tray 2 and allows to maintain the inside of the bin 2 equipped with its material cladding insulation 3 at a temperature preferably included between 0 and 4 ° C.
  • the diffuser cover 4 will be seen more in detail in Figures 2 and 3.
  • an insulating cover 5 caps the diffuser cover 4 and thermally isolates the assembly which then forms an isothermal enclosure.
  • the insulating cover 5 is preferably made of polystyrene for food use and may advantageously be provided with two small openings 5 1 and 5 2 respectively on two opposite edges of the cover so that the cover can be easily removed manually.
  • the lid 6 secured to the tray 2 can then be with unrepresented closing means which allow to seal the tray when the lid 6 is close it over to make sure that the chain cold was not broken during transport.
  • FIG. 2 shows a detailed view of the lid diffuser 4 and in particular cooling means integrated according to section AA of FIG.
  • the cooling means integrated into lid 4 include a coolant source autonomous 7 arranged on a support pod 8 forming an interface between the refrigerant source autonomous 7 and a thermal bridge 9.
  • the autonomous refrigerant source 7 is constituted preferably carbon dioxide in solid form still called dry ice and is at a temperature about -70 ° C.
  • FIG. 3 shows a top view of the lid diffuser 4 with integrated cooling means 7, 8 and 9 where appears the structure of the thermal bridge 9.
  • the thermal bridge 9 is thus implemented by through a set of aluminum bars, attached to the diffuser cover by gluing or by any other suitable fastening means.
  • the set of bars of aluminum composing the thermal bridge according to the invention advantageously has a structure double "H" which extends over the entire length of the diffuser cover 4.
  • the support pod 8 is then placed above, so as to cover both vertical bars 10 and 11 forming the double "H”.
  • the two vertical bars 10 and 11 of the thermal bridge allow this way to support the nacelle.
  • Other types of structure than the double "H" previously described can of course be considered without departing from the scope of this invention.
  • the thermal bridge 9 actually functions essential to evenly distribute the temperature supplied by the autonomous refrigerant source 7 above polypropylene tray where products are stored fresh. The good thermal distribution of the temperature provided by the refrigerant source in the bin is therefore ensured thanks to the thermal bridge 9 having in particular the particular properties mentioned above.
  • the temperature of the source autonomous refrigerant 7 implementation is too low for the intended use of the isothermal container according to the present invention.
  • This feature of the support nacelle 8 of the cooling source is obtained thanks to the good insulating properties of the polypropylene of which it is incorporated.
  • the diffuser cover 4 is in thermal insulating material and constitutes a second interface acting as thermal insulator between the thermal bridge 9 and the inside of the tank where are stored the fresh products.
  • the diffuser cover consists of a plate in plexiglass.
  • the plexiglass plate forming the lid 4 allows then to raise again the temperature provided by the refrigerant source 7 to then broadcast it to the inside of the tank so as to obtain the temperature desired storage preferably between 0 ° C. and 4 ° C inside the tank.
  • the insulating lid 5 made of polystyrene comprises a obviously 10 in the center of its lower surface in which is housed the dry ice 7, when putting in place of the insulating cover 5.
  • the integrated cooling means at the diffuser cover are refillable and the amount of dry ice put in place within the diffuser cover allows the user to optimize and to modulate the maintenance of the duration of the chain of cold according to his needs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Packages (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Table Devices Or Equipment (AREA)

Abstract

An insulated container for the storage and transport of fresh food items to keep them at a desired temperature, preferably between 0 and 4° C., includes a case provided with an insulating material lining on all its inside faces. The container also includes a diffuser cover provided with an independent refrigeration source connected to a thermal bridge by a support receptacle. The refrigeration source keeps the desired temperature inside the case for a determined period. An insulating cover fits over the diffuser cover to provide thermal insulation for the assembly.

Description

L'objet de la présente invention se rapporte à un dispositif de froid embarqué permettant de maintenir au frais des denrées alimentaires du stockage à la livraison chez le consommateur final. Les denrées concernées sont essentiellement des produits frais transformés ou non transformés d'origine animale et végétale. Le dispositif selon l'invention doit pouvoir assurer la conservation des produits frais à une température positive de l'ordre de 0 à +4 degrés Celsius (°C).The subject of the present invention relates to a on-board cooling device to maintain fresh food from storage to the delivery to the end consumer. Foodstuffs concerned are essentially fresh products processed or unprocessed animal origin and vegetable. The device according to the invention must be able to ensure the conservation of fresh produce at a positive temperature of the order of 0 to +4 degrees Celsius (° C).

Il est connu que la conservation des produits alimentaires frais nécessite le maintien de ces produits à une température comprise entre 0 et 4°C. Cette température doit être assurée lors du transport de ces produits du lieu d'achat ou de stockage jusqu'au consommateur final. Les documents EP 1 074 483 & US 2 289 060 montrent un conteneur isotherme.It is known that the conservation of products fresh food necessitates the maintenance of these products at a temperature between 0 and 4 ° C. This temperature must be ensured during transport of these products from the place of purchase or storage until final consumer. EP 1 074 483 & US 2 289 060 show an isothermal container.

Le maintien de la température de conservation doit être strictement respecté, car le passage à une température supérieure risque de développer la flore microbienne et donc de rendre dangereuse la consommation des produits pour le consommateur.Maintaining the storage temperature must be strictly respected because the transition to higher temperature may develop flora microbial and therefore make dangerous the consumption of products for the consumer.

Ainsi, dans les services de vente et de livraison à domicile de produits frais qui connaissent un essor important, le respect de la chaíne du froid est primordial.Thus, in sales and delivery services at home fresh products that are booming important, respect for the cold chain is paramount.

Traditionnellement, les produits frais sont maintenus à la température adéquate dans des chambres froides pendant leur stockage et des véhicules réfrigérés, le plus souvent des camions dotés de chambres froides, sont utilisés pour transporter les produits frais de leur lieu de stockage au domicile du client. Les produits peuvent également être transportés par camion dans des conteneurs isothermes. Dans ce cas, il s'agit de dispositifs hermétiquement clos et sous pression.Traditionally, fresh products are kept at the proper temperature in rooms cold during storage and vehicles refrigerated vehicles, most often trucks with cold rooms, are used to transport the fresh products from their place of storage at the home of the customer. Products can also be transported by truck in insulated containers. In that case, these are hermetically sealed devices and under pressure.

La logistique mise en place dans ce mode de livraison de produits frais est donc très lourde et très coûteuse en matériels et en hommes. En effet, il est nécessaire de prévoir des chauffeurs munis de permis automobile, voire poids lourd.The logistics set up in this mode of delivery of fresh produce is therefore very heavy and very expensive in materials and men. Indeed, he It is necessary to provide drivers with automobile license, even heavy weight.

De plus, ce mode de livraison n'est pas adapté aux zones urbaines puisque les camions réfrigérés, de par leur taille, sont dépendants des conditions de circulation et donc, tributaires des embouteillages. Il leur est donc difficile de livrer les produits dans le temps imparti.In addition, this delivery method is not suitable in urban areas since refrigerated trucks, by their size, are dependent on the conditions of traffic and therefore, dependent on traffic jams. he it is therefore difficult for them to deliver the products in allotted time.

Enfin, un inconvénient majeur de ces dispositifs, à savoir des camions munis de chambres froides ou de conteneurs hermétiquement clos et sous pression, est qu'ils ne permettent pas à l'utilisateur d'optimiser la chaíne du froid en tenant compte de la durée de stockage et de transport de la quantité de denrées tenues au frais.Finally, a major disadvantage of these devices, namely trucks with cold rooms or hermetically sealed containers and under pressure, is that they do not allow the user to optimize the cold chain taking into account the duration of storage and transportation of the quantity of food kept cool.

Ainsi, ces dispositifs ne permettent pas d'optimiser et de moduler le maintien de la durée de la chaíne du froid par l'utilisateur selon ses besoins.Thus, these devices do not allow optimize and modulate the maintenance of the duration of the chain of cold by the user according to his needs.

Ainsi, le but que se propose d'atteindre la présente invention est de remédier aux inconvénients précités en fournissant un conteneur isotherme peu onéreux, simple à réaliser, assurant une préservation parfaite des produits alimentaires frais et pouvant être transporté facilement sur un véhicule léger motorisé à deux ou trois roues ou par tout autre moyen de transport non doté d'équipement de réfrigération jusqu'au lieu de livraison. Thus, the goal proposed by The present invention is to overcome the disadvantages mentioned above by providing a small insulated container expensive, simple to perform, ensuring preservation perfect fresh food and can be transported easily on a light vehicle motorized with two or three wheels or by any other means transport equipment not equipped with refrigeration equipment to the place of delivery.

Pour résoudre les problèmes ci-dessus, on propose conformément à la présente invention un conteneur isotherme pour le stockage et le transport de produits alimentaires frais permettant le maintien de ces produits à leur température de conservation comprise de préférence entre 0 et 4°C, comprenant un bac muni sur l'ensemble de ses faces intérieures d'un habillage en matériau isolant, ledit conteneur étant caractérisé en ce qu'il comprend en plus un couvercle diffuseur pourvu d'une source réfrigérante autonome reliée à un pont thermique par l'intermédiaire d'une nacelle de support permettant de maintenir ladite température de conservation à l'intérieur du bac pendant une durée déterminée, et un couvercle isolant qui vient coiffer ledit couvercle diffuseur pour isoler thermiquement l'ensemble.To solve the above problems, we propose according to the present invention a container isotherm for the storage and transportation of products fresh food for maintaining these products at their storage temperature from preferably between 0 and 4 ° C, comprising a tray provided on all of its inner faces of a covering in insulating material, said container being characterized in what it includes in addition a diffuser cover provided with a self-contained refrigerant source connected to a thermal bridge through a nacelle of support for maintaining said temperature of storage inside the tank for a period determined, and an insulating cover that caps said diffuser cover for thermally insulating all.

D'autres caractéristiques et avantages de la présente invention apparaítront plus clairement à la lecture de la description suivante d'un exemple de réalisation en référence aux figures dans lesquelles :

  • la figure 1 est une vue en perspective éclatée montrant les différentes composantes du conteneur isotherme;
  • la figure 2 est une vue de profil détaillée du couvercle diffuseur selon la coupe AA ;
  • la figure 3 est une vue de dessus du couvercle diffuseur ;
  • la figure 4 est une vue de profil selon la coupe BB du couvercle isolant.
Other characteristics and advantages of the present invention will appear more clearly on reading the following description of an embodiment with reference to the figures in which:
  • Figure 1 is an exploded perspective view showing the various components of the isothermal container;
  • Figure 2 is a detailed profile view of the diffuser cover according to section AA;
  • Figure 3 is a top view of the diffuser cover;
  • Figure 4 is a side view in section BB of the insulating cover.

La figure 1 montre donc une vue éclatée d'un conteneur isotherme.Figure 1 shows an exploded view of a isothermal container.

Ainsi, le conteneur isotherme comprend tout d'abord un bac 2, de forme parallélépipédique, de préférence en polypropylène utilisable à des fins alimentairesThus, the isothermal container includes everything first a tray 2, of parallelepipedic shape, preferably made of polypropylene which can be used for food

Le bac 2 est prévu pour être emboítable et gerbable et comprend des dimensions extérieures standards.The tray 2 is intended to be nestable and stackable and includes external dimensions standards.

Un habillage 3 en matériau isolant, de préférence en polystyrène à usage alimentaire, vient recouvrir l'intérieur du bac 2 sur ses quatre faces latérales ainsi que le fond du bac 2. L'habillage 3 en matériau isolant est fabriqué d'une seule pièce et épouse parfaitement les formes intérieures du bac 2 en polypropylène.A covering 3 made of insulating material, preferably polystyrene for food use, comes to cover the inside of the tray 2 on its four lateral faces as well as the bottom of the tray 2. The covering 3 of material insulation is made in one piece and marries perfectly the inner forms of the tray 2 in polypropylene.

A près que des produits frais sont placés à l'intérieur du bac 2, un couvercle diffuseur 4 avec des moyens de refroidissement intégrés est prévu pour être disposé sur le dessus du bac 2 et permet de maintenir l'intérieur du bac 2 muni de son habillage en matériau isolant 3 à une température comprise de préférence entre 0 et 4°C. Le couvercle diffuseur 4 sera vu plus en détail aux figures 2 et 3.Near that fresh products are placed at inside the tray 2, a diffuser cover 4 with integrated cooling means is planned to be arranged on the top of the tray 2 and allows to maintain the inside of the bin 2 equipped with its material cladding insulation 3 at a temperature preferably included between 0 and 4 ° C. The diffuser cover 4 will be seen more in detail in Figures 2 and 3.

Enfin, un couvercle isolant 5 vient coiffer le couvercle diffuseur 4 et permet d'isoler thermiquement l'ensemble qui forme alors une enceinte isotherme. Le couverle isolant 5 est formé de préférence en polystyrène à usage alimentaire et peut être avantageusement doté de deux petites ouvertures 51 et 52 respectivement sur deux bords opposés du couvercle de façon à pouvoir retirer facilement le couvercle manuellement.Finally, an insulating cover 5 caps the diffuser cover 4 and thermally isolates the assembly which then forms an isothermal enclosure. The insulating cover 5 is preferably made of polystyrene for food use and may advantageously be provided with two small openings 5 1 and 5 2 respectively on two opposite edges of the cover so that the cover can be easily removed manually.

Selon un mode de réalisation particulier, le bac 2 comprend en plus un couvercle solidaire en polypropylène 6.According to a particular embodiment, the tray 2 additionally comprises a solidarity cover in polypropylene 6.

Le couvercle 6 solidaire du bac 2 peut alors être doté de moyens de fermeture non représentés qui permettent de sceller le bac lorsque le couvercle 6 se referme par-dessus de façon à s'assurer que la chaíne du froid n'a pas été rompue au cours du transport.The lid 6 secured to the tray 2 can then be with unrepresented closing means which allow to seal the tray when the lid 6 is close it over to make sure that the chain cold was not broken during transport.

La figure 2 montre une vue détaillée du couvercle diffuseur 4 et notamment des moyens de refroidissement intégrés selon la coupe AA de la figure 1.Figure 2 shows a detailed view of the lid diffuser 4 and in particular cooling means integrated according to section AA of FIG.

Les moyens de refroidissement intégrés au couvercle 4 comprennent une source réfrigérante autonome 7 disposée sur une nacelle de support 8 formant une interface entre la source réfrigérante autonome 7 et un pont thermique 9.The cooling means integrated into lid 4 include a coolant source autonomous 7 arranged on a support pod 8 forming an interface between the refrigerant source autonomous 7 and a thermal bridge 9.

La source réfrigérante autonome 7 est constituée de préférence d'anhydride carbonique sous forme solide encore appelé glace carbonique et est à une température de -70°C environ.The autonomous refrigerant source 7 is constituted preferably carbon dioxide in solid form still called dry ice and is at a temperature about -70 ° C.

De façon avantageuse, le pont thermique 9 est réalisé avec un matériau possédant une chaleur spécifique faible. Par exemple, le pont thermique est réalisé en aluminium.Advantageously, the thermal bridge 9 is made with a material having a heat specific weak. For example, the thermal bridge is made of aluminum.

La figure 3 montre une vue de dessus du couvercle diffuseur 4 muni des moyens de refroidissement intégrés 7, 8 et 9 où apparaít la structure du pont thermique 9. Le pont thermique 9 est ainsi mis en oeuvre par l'intermédiaire d'un ensemble de barres d'aluminium, fixées au couvercle diffuseur par collage ou par tout autre moyen de fixation adapté. L'ensemble des barres d'aluminium composant le pont thermique selon l'invention présente avantageusement une structure en double « H » qui s'étend sur toute la longueur du couvercle diffuseur 4. La nacelle de support 8 est alors placée au-dessus, de façon à recouvrir les deux barres verticales 10 et 11 formant le double « H ». Les deux barres verticales 10 et 11 du pont thermique permettent de cette façon de supporter la nacelle. D'autres types de structure que celle en double « H » précédemment décrite peuvent bien sûr être envisagées sans sortir pour autant du cadre de la présente invention.Figure 3 shows a top view of the lid diffuser 4 with integrated cooling means 7, 8 and 9 where appears the structure of the thermal bridge 9. The thermal bridge 9 is thus implemented by through a set of aluminum bars, attached to the diffuser cover by gluing or by any other suitable fastening means. The set of bars of aluminum composing the thermal bridge according to the invention advantageously has a structure double "H" which extends over the entire length of the diffuser cover 4. The support pod 8 is then placed above, so as to cover both vertical bars 10 and 11 forming the double "H". The two vertical bars 10 and 11 of the thermal bridge allow this way to support the nacelle. Other types of structure than the double "H" previously described can of course be considered without departing from the scope of this invention.

Le pont thermique 9 a en fait pour fonction essentielle de répartir uniformément la température fournie par la source réfrigérante autonome 7 au-dessus du bac en polypropylène où sont stockés les produits frais. La bonne répartition thermique de la température fournie par la source réfrigérante dans le bac est donc assurée grâce au pont thermique 9 possédant notamment les propriétés particulières mentionnées ci-dessus.The thermal bridge 9 actually functions essential to evenly distribute the temperature supplied by the autonomous refrigerant source 7 above polypropylene tray where products are stored fresh. The good thermal distribution of the temperature provided by the refrigerant source in the bin is therefore ensured thanks to the thermal bridge 9 having in particular the particular properties mentioned above.

Cependant, la température de la source réfrigérante autonome 7 mise en oeuvre est trop basse pour l'usage prévu du conteneur isotherme selon la présente invention.However, the temperature of the source autonomous refrigerant 7 implementation is too low for the intended use of the isothermal container according to the present invention.

Ainsi, la nacelle de support 8 est avantageusement réalisée en matériau isolant thermique. On utilise par exemple du polypropylène.Thus, the support nacelle 8 is advantageously made of thermal insulating material. For example, polypropylene is used.

La nacelle de support 8 de la source réfrigérante constitue donc une première interface jouant le rôle d'isolant thermique entre la source réfrigérante autonome 7 et le pont thermique 9 pour remonter la température fournie par la source réfrigérante et ainsi obtenir une diffusion plus douce.The nacelle support 8 of the refrigerant source is therefore a first interface playing the role of thermal insulation between the cooling source autonomous 7 and the thermal bridge 9 to go up the temperature supplied by the refrigerant source and so get a softer diffusion.

Cette caractéristique de la nacelle de support 8 de la source réfrigérante est obtenue grâce aux bonnes propriétés isolantes du polypropylène dont elle est constituée.This feature of the support nacelle 8 of the cooling source is obtained thanks to the good insulating properties of the polypropylene of which it is incorporated.

De la même façon, le couvercle diffuseur 4 est en matériau isolant thermique et constitue une deuxième interface jouant le rôle d'isolant thermique entre le pont thermique 9 et l'intérieur du bac où sont stockés les produits frais.In the same way, the diffuser cover 4 is in thermal insulating material and constitutes a second interface acting as thermal insulator between the thermal bridge 9 and the inside of the tank where are stored the fresh products.

Selon un mode de réalisation préféré, le couvercle diffuseur est constitué d'une plaque en plexiglas. According to a preferred embodiment, the diffuser cover consists of a plate in plexiglass.

La plaque de plexiglas formant le couvercle 4 permet alors de remonter encore la température fournie par la source réfrigérante 7 pour la diffuser ensuite à l'intérieur du bac de manière à obtenir la température de conservation voulue comprise de préférence entre 0°C et 4°C à l'intérieur du bac.The plexiglass plate forming the lid 4 allows then to raise again the temperature provided by the refrigerant source 7 to then broadcast it to the inside of the tank so as to obtain the temperature desired storage preferably between 0 ° C. and 4 ° C inside the tank.

De plus, la plaque de plexiglas formant le couvercle diffuseur 4 permet d'isoler les produits stockés à l'intérieur du bac du gaz carbonique dégagé par la source réfrigérante autonome 7 qui pourrait altérer certains d'entre eux. En effet, à la pression atmosphérique, la glace carbonique se sublime et dégage du gaz carbonique.In addition, the plexiglass plate forming the diffuser cover 4 isolates the products stored inside the carbon dioxide tank by the autonomous refrigerant source 7 that could alter some of them. Indeed, at the pressure atmospheric, the dry ice sublimates and releases carbon dioxide.

Dans un mode de réalisation particulier de l'invention, le couvercle diffuseur 4 et la nacelle de support 8 sont formés à partir d'une seule et même plaque de matériau déformable isolant thermique, de préférence une plaque en polypropylène alvéolé. Une première opération consiste tout d'abord à réaliser le pont thermique 9 sur la plaque de polypropylène alvéolé. Pour ce faire, des bandes d'aluminium encollées sont disposées à la surface de la plaque de sorte à former le motif en double « H » tel que déjà décrit en référence à la figure 3. Le motif en double « H » est cependant prévu pour s'étendre seulement sur la moitié de la surface totale de la plaque. Puis, par la mise en oeuvre d'une suite d'opérations adéquates de découpe et de thermoformage, la première moitié de la plaque en polypropylène alvéolé comprenant le pont thermique est mise en forme de façon à ce que la zone située en regard des bandes verticales 10 et 11 d'aluminium formant le double « H » soit surrélevée, formant ainsi la nacelle de support 8 pour la source réfrigérante autonome 7. In a particular embodiment of the invention, the diffuser cover 4 and the nacelle of support 8 are formed from one and the same plate of heat-insulating deformable material, preferably a honeycomb polypropylene plate. A first operation consists first of all in realizing the thermal bridge 9 on the polypropylene plate Honeycomb. To do this, aluminum strips glue are placed on the surface of the plate so to form the pattern in duplicate "H" as already described with reference to Figure 3. The duplicate pattern "H" is however intended to extend only to half of the total area of the plate. Then by the implementation of a series of appropriate operations of cutting and thermoforming, the first half of the cellular polypropylene plate including the bridge thermal is shaped so that the area located next to vertical stripes 10 and 11 of aluminum forming the double "H" is raised, thus forming the support nacelle 8 for the source autonomous refrigerant 7.

La seconde moitié de la plaque de polypropylène alvéolé non mise en forme est alors repliée sous la première moitié de plaque thermoformée de sorte à venir recouvrir les bandes d'aluminium formant le pont thermique.The second half of the polypropylene plate unformatted honeycomb is then folded under the first half of thermoformed plate so forth cover the aluminum strips forming the bridge thermal.

Le couvercle diffuseur ainsi obtenu doté de son pont thermique et de sa nacelle de support présente avantageusement les mêmes caractéristiques que le couvercle diffuseur obtenu selon le premier mode de réalisation en référence aux figures 2 et 3.The diffuser cover thus obtained with its thermal bridge and its supporting nacelle presents advantageously the same characteristics as the diffuser cover obtained according to the first mode of embodiment with reference to Figures 2 and 3.

Ce mode de réalisation particulier où le couvercle diffuseur 4 et la nacelle de support 8 sont obtenus par pliage à partir d'une unique plaque de polypropylène alvéolé, permet en fait d'abaisser fortement le coût de fabrication de l'ensemble couvercle diffuseur et donc d'envisager son emploi à usage unique.This particular embodiment where the diffuser cover 4 and support pod 8 are obtained by folding from a single plate of honeycombed polypropylene, actually makes it possible to lower strongly the cost of manufacturing the whole diffuser cover and so to consider his job at Disposable.

Enfin, la figure 4 montre un détail une vue de profil du couvercle isolant 5 selon la coupe BB de la figure 1.Finally, Figure 4 shows a detail a view of profile of the insulating cover 5 according to section BB of the figure 1.

Le couvercle isolant 5 en polystyrène comprend un évidemment 10 au centre de sa surface inférieure dans lequel est logée la glace carbonique 7, lors de la mise en place du couvercle isolant 5.The insulating lid 5 made of polystyrene comprises a obviously 10 in the center of its lower surface in which is housed the dry ice 7, when putting in place of the insulating cover 5.

Le conteneur isotherme obtenu grâce à la présente invention est donc simple à réaliser et permet d'assurer un maintien des produits frais stockés à leur température de conservation pendant plusieurs heures.The insulated container obtained thanks to this invention is simple to achieve and allows to ensure the maintenance of the fresh produce stored at their storage temperature for several hours.

De plus, les moyens de refroidissement intégrés au couvercle diffuseur sont rechargeables et la quantité de glace carbonique mise en place au sein du couvercle diffuseur permet à l'utilisateur d'optimiser et de moduler le maintien de la durée de la chaíne du froid selon ses besoins.In addition, the integrated cooling means at the diffuser cover are refillable and the amount of dry ice put in place within the diffuser cover allows the user to optimize and to modulate the maintenance of the duration of the chain of cold according to his needs.

Claims (11)

  1. An isothermal container (1) for the storage and transportation of fresh food products, allowing these products to be maintained at their preservation temperature of preferably between 0 and 4°C, comprising a box (2) provided over all of its internal faces with a lining (3) made of insulating material, the said container being characterized in that it furthermore includes a diffuser cover (4) provided with an autonomous source of refrigeration (7) connected to a thermal bridge (9) via a support pod (8) allowing the said preservation temperature to be maintained inside the box (2) for a specified time, and an insulating cover (5) that fits on top of the said diffuser cover (4) in order to thermally insulate the assembly.
  2. Container according to Claim 1, characterized in that the box (2) is made of food-grade polypropylene.
  3. Container according to Claim 1 or 2, characterized in that the box (2) includes an integral cover (6) made of polypropylene.
  4. Container according to one of the preceding claims, characterized in that the lining (3) of the inside of the box (2) and the insulating cover (5) are made of food-grade polystyrene.
  5. Container according to one of the preceding claims, characterized in that the diffuser cover (4) and the support pod (8) are made of a thermally insulating material.
  6. Container according to Claim 5, characterized in that the diffuser cover (4) and the support pod (8) are made of cellular polypropylene.
  7. Container according to Claim 5, characterized in that the diffuser cover (4) is made of PMMA such as Plexiglas.
  8. Container according to Claim 5, characterized in that the support pod (8) is made of polypropylene.
  9. Container according to one of the preceding claims, characterized in that the thermal bridge (9) is made of a material having a low specific heat.
  10. Container according to one of the preceding claims, characterized in that the thermal bridge is made of aluminium and has a double "H" structure bending over the entire length of the diffuser cover (4) in order for the temperature provided by the autonomous source of refrigeration (7) to be uniformly distributed.
  11. Container according to one of the preceding claims, characterized in that the autonomous source of refrigeration (7) consists of carbon dioxide in solid form, called dry ice.
EP02290354A 2001-02-16 2002-02-13 Isothermal container Expired - Lifetime EP1233243B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0102169A FR2821067B1 (en) 2001-02-16 2001-02-16 INSULATED CONTAINER
FR0102169 2001-02-16

Publications (2)

Publication Number Publication Date
EP1233243A1 EP1233243A1 (en) 2002-08-21
EP1233243B1 true EP1233243B1 (en) 2005-01-12

Family

ID=8860132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02290354A Expired - Lifetime EP1233243B1 (en) 2001-02-16 2002-02-13 Isothermal container

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Country Link
US (1) US6668577B2 (en)
EP (1) EP1233243B1 (en)
JP (1) JP3988119B2 (en)
AT (1) ATE287072T1 (en)
DE (1) DE60202541T2 (en)
DK (1) DK1233243T3 (en)
ES (1) ES2236453T3 (en)
FR (1) FR2821067B1 (en)
HK (1) HK1050238B (en)
PT (1) PT1233243E (en)

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CN102530394B (en) * 2012-01-13 2013-11-20 成都川盛塑胶有限公司 Non-electric freshness and moisture preserving container

Also Published As

Publication number Publication date
JP2002274579A (en) 2002-09-25
DK1233243T3 (en) 2005-05-30
JP3988119B2 (en) 2007-10-10
EP1233243A1 (en) 2002-08-21
HK1050238B (en) 2005-10-14
PT1233243E (en) 2005-05-31
US6668577B2 (en) 2003-12-30
ATE287072T1 (en) 2005-01-15
FR2821067A1 (en) 2002-08-23
DE60202541D1 (en) 2005-02-17
FR2821067B1 (en) 2003-08-15
US20020124588A1 (en) 2002-09-12
DE60202541T2 (en) 2005-12-22
ES2236453T3 (en) 2005-07-16

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