FR2622683A1

FR2622683A1 - Chilling mattresses

Info

Publication number: FR2622683A1
Application number: FR8715018A
Authority: FR
Inventors: Maurice Derambure
Original assignee: REMAG SARL
Current assignee: REMAG SARL
Priority date: 1987-10-29
Filing date: 1987-10-29
Publication date: 1989-05-05

Abstract

The invention relates to a device enabling cooling power to be produced without being dependent on a source supplying refrigerant, electricity, gas or replacement energy. It consists of a mattress composed of two polypropylene sheets 1 containing spherical eutectic nodules 2, this blanket being laid in an insulated 4 vessel 3 fitted with a fan supplied by an electrical accumulator (battery) and thermostat. The device is also used in an enclosure (cell) 5 (display case). In this case, it is placed above the foodstuffs. The device also keeps an appearance of ice in grains or cubes 6. The device according to the invention is particularly intended for keeping foodstuffs or products not intended for eating at a temperature between 2 DEG C and 10 DEG C for a period of up to four hours, without connecting up to a power source.

Description

La présente invention concerne un dispositif permettant de maintenir une présentation de denrées alimentaires à une température positive entre 2"c et 10 c, sans énergie extérieure, le dispositif suffisant à lui-même pour maintenir cette température pour un temps légal ou inférieur à quatre heures. The present invention relates to a device making it possible to maintain a presentation of foodstuffs at a positive temperature between 2 "c and 10 c, without external energy, the device sufficient in itself to maintain this temperature for a legal time or less than four hours .

Le maintien à une température positive de denrées alimentaires entre 2"c et 10 c est traditionnellement effectué à l'aide d'un système de production de froid alimenté par l'énergie électrique, gaz ou énergie de remplacement. Maintaining foodstuffs at a positive temperature between 2 "c and 10 c is traditionally carried out using a cold production system powered by electric energy, gas or alternative energy.

Le système est intégré ou indépendant de la présentation des denrées alimentaires, mais obligatoirement relié par des canalisations frigorifiques et électriques, gaz ou énergie de remplacement entre la production de froid et la présentation des denrées alimentaires. The system is integrated or independent of the presentation of foodstuffs, but must be linked by refrigeration and electrical pipes, gas or alternative energy between the production of cold and the presentation of foodstuffs.

Le système ne permet pas le maintien des denrées alimentaires entre 2"c et 10"c dans des lieux ne disposant pas d'énergie alimentant la production de froid, comme par exemple un espace extérieur ou intérieur, sans possibilité de raccordement à une énergie, autre que par une liaison matériel entre la, production de froid et le maintien en température entre 20c et 10 c des denrées alimentaires. The system does not allow the maintenance of foodstuffs between 2 "c and 10" c in places without energy supplying the production of cold, such as for example an outdoor or indoor space, without possibility of connection to an energy, other than by a material link between the production of cold and the maintenance in temperature between 20c and 10c of foodstuffs.

Le dispositif selon l'invention permet de remédier à cet inconvénient. The device according to the invention overcomes this drawback.

I1 dispose d'un matelas de dimensions dites Gastronormes, composé de deux plaques en polypropylène emprisonnant des nodules eutectiques sphériques de la Société Cristopia. It has a mattress of dimensions called Gastronorms, composed of two polypropylene plates trapping spherical eutectic nodules from the Cristopia Company.

Ce matelas étant placé dans une ambiance à -20 c / -25 c, permet aux nodules un changement d'état liquide à l'état solide. Ce changement d'état permet de stocker une grande quantité d'énergie frigorifique. This mattress being placed in an atmosphere at -20 c / -25 c, allows the nodules to change from liquid to solid state. This change of state allows a large amount of cooling energy to be stored.

Le matelas permet la manipulation de 24 nodules à la fois dans une dimension égale ou inférieure à la dimension gastronorme soit 530 x 325, l'épaisseur étant pour le matelas de 80 mm, sachant que la hauteur gastronorme n'est pas définie, mais varie actuellement de 20 à 300 mm. La figure 1 représente le matelas en plan et en coupe selon l'invention. The mattress allows the manipulation of 24 nodules at a time in a dimension equal to or less than the gastronorm dimension, ie 530 x 325, the thickness being for the mattress of 80 mm, knowing that the gastronorm height is not defined, but varies currently from 20 to 300 mm. Figure 1 shows the mattress in plan and in section according to the invention.

Le matelas après le changement d'état de ces nodules, est placcé dans une cuve isolée disposant d'un ventilateur alimenté par un accumulateur d'énergie, assurant une accélération de l'air et une diffusion homogène de froid audessus ou en dessous du matelas. The mattress after the change of state of these nodules, is placed in an insulated tank having a fan powered by an energy accumulator, ensuring an acceleration of the air and a homogeneous diffusion of cold above or below the mattress .

D'autre cas d'utilisation sont prévus, à savoir en partie supérieure d'une enceinte (vitrine) dans ce cas les produits à maintenir en température sont placés en dessous du matelas, ou simplement dans une cuve isolée sans ventilation forcée de l'air pour le maintien de glace en grains ou cubes posée sur le matelas même. Other use cases are provided, namely in the upper part of an enclosure (display case) in which case the products to be maintained at temperature are placed below the mattress, or simply in an insulated tank without forced ventilation of the air to maintain granular or cube ice placed on the mattress itself.

Pour sa manipulation, le matelas dispose d'une poignée escamotable en matière isolante. For its handling, the mattress has a retractable handle in insulating material.

Le matériau employé est de qualité alimentaire, résistant aux produits de nettoyage courants, totalement immersible, permettant une désinfection par un produit autorisé à une température égale ou inférieure à 50"c. The material used is food grade, resistant to common cleaning products, completely immersible, allowing disinfection by an authorized product at a temperature equal to or lower than 50 "c.

Claims

1) Device for maintaining a presentation of foodstuffs at a positive temperature between 2 "c and 10 c for a time equal to or less than four hours characterized in that it comprises a mattress constituted by two polypropylene plates (1) trapping eutectic nodules (2), the whole in a dimension called Gastronorm, that is 530 x 325.

2) Device according to claim 1 characterized in that the polypropylene plates (1) constitute a support allowing the manipulation of the nodules (2) in order to facilitate their installation in an atmosphere of -20 c to -25 c, for the change of state of the nodules (2) and glow placed in the tank (3) or user enclosure (5).

3) Device according to claim 1 or claim 2 characterized in that the openings (7) on the polypropylene plates (1) allow the passage of air between the nodules (2).

4) Device according to claim 1 characterized in that the nodules (2) are arranged so that they are at a sufficient distance to ensure the best exchange of air relative to the surface of the nodule (2).

5) Device according to any one of the preceding claims, characterized in that the two polypropylene plates (1) are held together by spacers (8) of circular shape, themselves made of polypropylene, the assembly held together by screws (9) also made of polypropylene.

6) Device according to any one of the preceding claims, characterized in that its use is combined with an insulated tank (3) (4) provided with ventilation allowing the distribution of the cooled air in contact with the nodules (2).

7) Device according to any one of the preceding claims, characterized in that its use can also be beech combined with an enclosure (5) provided in its upper part with a box (10) allowing the static or mechanical diffusion of the cold on foodstuffs located below.

8) Device according to any one of the preceding claims, characterized in that its use can be simply placed at the bottom of a tank (3) in order to maintain ice in grains or cubes (6) in the solid state for a period varying with the ambient temperature.

9) Device according to any one of the preceding claims, characterized in that its use is suitable for non-food products requiring maintenance between 2 "c and 100c.