EP0183690A1 - Improvements to thermal complexes - Google Patents

Improvements to thermal complexes

Info

Publication number
EP0183690A1
EP0183690A1 EP84902347A EP84902347A EP0183690A1 EP 0183690 A1 EP0183690 A1 EP 0183690A1 EP 84902347 A EP84902347 A EP 84902347A EP 84902347 A EP84902347 A EP 84902347A EP 0183690 A1 EP0183690 A1 EP 0183690A1
Authority
EP
European Patent Office
Prior art keywords
thermal
sheet
complexes according
sheets
complexes
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Withdrawn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
EP84902347A
Other languages
German (de)
French (fr)
Inventor
Paul Blanié
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0183690A1 publication Critical patent/EP0183690A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02Compresses or poultices for effecting heating or cooling
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02Materials undergoing a change of physical state when used
    • C09K5/06Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F2007/0095Heating or cooling appliances for medical or therapeutic treatment of the human body with a temperature indicator
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02Compresses or poultices for effecting heating or cooling
    • A61F2007/0244Compresses or poultices for effecting heating or cooling with layers
    • A61F2007/0249Compresses or poultices for effecting heating or cooling with layers with a layer having low heat transfer capability
    • A61F2007/0255Compresses or poultices for effecting heating or cooling with layers with a layer having low heat transfer capability with a reflective layer
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02Compresses or poultices for effecting heating or cooling
    • A61F2007/0268Compresses or poultices for effecting heating or cooling having a plurality of compartments being filled with a heat carrier
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0004Particular heat storage apparatus
    • F28D2020/0008Particular heat storage apparatus the heat storage material being enclosed in plate-like or laminated elements, e.g. in plates having internal compartments
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Definitions

  • the present invention relates to improvements to thermal complexes, and more particularly to thermal complexes that can be read with their packaging.
  • thermal complexes are called products, and in particular mixtures, exhibiting a solidification plateau or a small temperature variation during the entire solidification period, which allows in particular their use as heat transmitters, at their temperature. solidification (or melting), or the narrow range of temperatures corresponding to this solidification.
  • solidification level which corresponds to the constant temperature during the melting or solidification of a pure body
  • thermal complexes can be used either to store heat which they then transmit (wraps, for example), or to ensure a maintenance of temperature during the transmission of heat from an external source (bain-marie, for example).
  • paraffinic complexes since these are, among the thermal complexes, those whose uses are the oldest and most varied. It is known in particular that the melting point of paraffins is in direct relation with their molecular mass, which offers a very wide range of solidification stages, made even more varied by means of the mixtures.
  • the present invention therefore relates to prepackaged complexes which are used directly as such in their packaging.
  • this packaging is designed to provide temperature control during use, limit unnecessary heat loss, and allow it to be reused.
  • thermo complexes characterized in that they consist of at least one elementary volume and packaged in at least one sheet resistant to the temperature of use of said complexes.
  • the latter relates to thermal complexes characterized in that they consist of at least one elementary volume and packaged in at least one sheet resistant to the temperature of use of said complexes and reflecting the infrared rays on one side and / or on the other side of the complex.
  • cylinders of thermal complexes s 1 are inserted between two sheets s 2 and 3, the sheet s being welded to the peripheral part around the entire periphery of the set of s cylinder. s arranged parallel to each other, and between the cylinders, at 4.
  • the sheets enveloping the cylinders can be made of any thermoplastic material that is resistant to temperature. Excellent results have been obtained with polyvinyl chloride sheets.
  • the welds between the two sheets can be made thermally or by high frequency, for example.
  • s holes 5 are provided, which makes it possible, using a cord, to attach assemblies s, such as those represented in FIG. 1, side a. side or end to end. It is, of course, possible to use all the means of attachment: pressures, staples, sliding closures and the like.
  • the user takes a plate, such as that shown in Figure 1; he can dip it directly in hot water to reach the desired temperature, and, when it s ort, he can apply it directly to the place of use, for example on a part of the body, in the case therapeutic use.
  • the intermediate weld between two cylinders, indicated at 4 in FIGS. 1 and 2, may not be continuous from end to end until the peripheral weld, which allows certain communications between the chambers containing each of the cylinders; this can make it possible, in particular, to facilitate the elimination of bubbles, if the sheets have been welded under vacuum.
  • prisms are used, of general trian ⁇ gular, hemispherical, semi-elliptical or trapezoidal section, which corresponds more precisely for the desired use, notably improving the contact between the subject and the thermal unit. It may also be advantageous, as shown in Figure 3, to add one or more layers 6 of insulating material; this can avoid heat losses, or at least limit them.
  • prisms of thermal complexes 10 are inserted between two sheets 12 and 13, the sheets being welded to the peripheral part around the entire periphery of the set of prisms arranged parallel to each other, and between the prisms, at 14.
  • the sheets surrounding the prisms can be made of any thermoplastic material resistant to the temperatures of use. Excellent results have been obtained with polyvinyl chloride sheets.
  • a metal sheet 16 is fixed, for example, by bonding to the sheet 12.
  • this sheet 16 is preferably health reflected, for example on the side of the sheet 12.
  • this reflective sheet 16 serves then envelope, and simultaneously it re ⁇ reflects the infrared which is emitted by the complex.
  • the sheet 16 can be made reflective on the side opposite to the sheet 12, or even on both sides of this sheet.
  • s holes 15 are also provided, making it possible to attach assemblies s such as those shown in FIG. 4, either side by side or end to end.
  • assemblies s such as those shown in FIG. 4, either side by side or end to end.
  • the implementation of this variant of the invention is carried out in the manner described above, with reference to Figures 1 to 3.
  • an additional reflective sheet 19 placed on the side of use. It will be noted, in this regard, that one and / or the other of these health reflective sheets 16 or 19 can be placed outside or inside with respect to sheets 12 and 1.3. It is also possible to provide at least one additional insulating sheet, which is placed on the outside with respect to use (side 12, 16).
  • the reflection effect can be obtained by any suitable means, and in particular by metallization of s sheets such as 12 and 13 or of insulating sheets.
  • s sheets such as 12 and 13 or of insulating sheets.
  • the advantage of such a reflection of infrared radiation is multiple:
  • the temperature gradient is flattened, which causes a delay in the solidification of the surface of the complex, and which, in the case of a double reflection ( Figure 5), delays the hardening or crystallization of the thermal complex, on the side of the body to warm up,
  • the system then behaving like a mirror which reflects the calories
  • the external heat radiation is considerably reduced, which makes it possible to concentrate the transmission of heat on the only conduction, thus making it possible to eliminate in part, and even entirely, the use of conductors such as, for example, metallic charges or metal oxides within the complexes.
  • thermometric device for example with liquid crystals, placed in any zone of the assembly and on the outside, during use, making it possible to control the temperature of the thermal complex.
  • This characteristic can also be useful when heating the thermal complex, to avoid going beyond the melting stage and reaching dangerous temperatures for the intended use, or even not to risk damaging the materials constituting the complex.
  • temperature control is also desirable during use on the subject, in order to avoid holding complexes that have been over-cooled for too long.
  • thermal complexes are not arranged in parallel, but according to a curve, a broken or polygonal line, or even according to isolated shelves s one of s s others using a weld bead giving the 'together an aspect of the type "chocolate bar" or similar product.
  • the thermal complexes according to the present invention can also be used for wraps in areas where the plates are difficult to use, even by giving them significant curvature. It is then possible to use s tubes which may or may not be linked together.
  • the thermal complexes can be extruded in a casing, according to a technique well known in the food industry.
  • the strand thus obtained can be continuous or separated with the aid of strings, or it can be cut into closed sections at both ends, for example by a ligature or by a weld. It is thus possible to use the complexes on surfaces which are very uneven or of relatively difficult access, for plates such as those shown in the drawings.
  • thermo ⁇ plastic sheets with an optional insulator. It is obvious that these sheets can be complex and have several layers. For example, one can glue one on the other several plastic or metallic layers to form the sheet. Flexibility and the ability to weld thermoplastic materials are thus associated with the mechanical resistance and the thermal properties of the metal.
  • sheet 6 ( Figure 3) or 16 ( Figures 4 and 5), which is glued on the planar side to sheet 2 or 12, respectively, allows the application of the opposite face 3 or 13, respectively, on an uneven surface.
  • the short side of the trapezoids 8 makes it possible to obtain a curvature of the en ⁇ seems to conform to the shape to be covered, the external face having the sheet 6 or 16 which, in section, follows in a substantially parallel fashion the contour of the surface receiving the application of the complex. It is understood that, depending on the uses, it is possible to have recourse to such and such a sectional configuration, allowing, on the one hand, an optimal thermal transmission, and, on the other hand, a minimum thermal transmission.
  • thermotherapy for example the transmission of calories or frigories to the human body, by contact, in particular for thermotherapy or cr otherapy treatments, the complexes according to the invention constituting elements - me ts thermo-diffused.
  • the thermal complexes can be divided into elementary volumes and packaged in one or more sheets resistant to the use temperature, preferably arranged so as to present the largest surface on the side of the transmission. thermal, and. on the other side, the best insulation, as much as possible.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Radiation-Therapy Devices (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Packages (AREA)

Abstract

Complexes thermiques constitués par un volume élémentaire (8), emballés dans deux feuilles (12), (13) qui résistent à la température d'emploi desdits complexes. L'emballage peut comprendre une ou plusieurs feuilles (16), (19) d'un matériau réfléchissant le rayonnement infra-rouge, tel que l'aluminium.Thermal complexes constituted by an elementary volume (8), packed in two sheets (12), (13) which resist the temperature of use of said complexes. The packaging may comprise one or more sheets (16), (19) of a material reflecting infrared radiation, such as aluminum.

Description

Perfectionnements aux complexes thermiques Improvements to thermal complexes
La présente invention a trait à des perfectionnements aux complexes thermique s, et plus particulièrement à de s complexes thermiques uti¬ lisable s avec leur emballage.The present invention relates to improvements to thermal complexes, and more particularly to thermal complexes that can be read with their packaging.
Dans ce qui suit, on appelle complexes thermiques des produits, et en particulier des mélanges, présentant un palier de solidification ou une variation de température faible pendant toute la durée de solidification, ce qui permet notamment leur utilisation comme transmetteurs de chaleur, à leur température de solidification (ou de fusion), ou à l' étroite gamme de températures correspondant à cette solidification.In what follows, thermal complexes are called products, and in particular mixtures, exhibiting a solidification plateau or a small temperature variation during the entire solidification period, which allows in particular their use as heat transmitters, at their temperature. solidification (or melting), or the narrow range of temperatures corresponding to this solidification.
Dans ce qui suit, on se référera, pour simplifier, au terme palier de solidification, qui correspond à la constance de température pendant la fusion ou la solidification d' un corps pur, et l' on étendra ce terme pour désigner également le palier légèrement en pente que présentent certains mélanges que l'on choisit clas siquement pour la quasi cons ¬ tance de leur température (moins de 5 ° C, par exemple) pendant leur fusion ou leur solidification.In what follows, we will refer, for simplicity, to the term solidification level, which corresponds to the constant temperature during the melting or solidification of a pure body, and we will extend this term to also designate the level slightly on the slope that certain mixes have which are classically chosen for the almost constant temperature (less than 5 ° C., for example) during their melting or solidification.
Ces complexes thermiques peuvent être utilisés soit pour emmagasiner une chaleur qu'ils transmettent ensuite (enveloppements, par exemple), soit pour assurer un maintien de température pendant la transmission de chaleur d' une source extérieure (bain-marie, par exemple). A titre d'illustration non limitative, on se réf rera, dans ce qui suit, à des complexes paraff inique s, car ce sont, parmi les complexes ther¬ miques, ceux dont le s emplois sont les plus anciens et les plus variés. On sait notamment que la température de fusion des paraffines est en relation directe avec leur masse moléculaire, ce qui offre une gamme de paliers de solidifications très étendue, rendue encore plus variée grâce aux mélanges. Qui plus est, il est connu d'incorporer dans ces complexe s des charge s diverses, et en particulier des métaux, leurs oxydes ou leurs sels, ce qui permet à l'homme de l'art de jouer sur la réserve thermique volumique et sur le coefficient de transmis sion calorifique. Mais, si des usages tels qu'un bain-marie sont simple s, le s utilisations de tels complexes, par exemple pour des enveloppe ¬ ments ou autre s chemisages, néce s sitent des manipulations, des pré¬ cautions et du temps.These thermal complexes can be used either to store heat which they then transmit (wraps, for example), or to ensure a maintenance of temperature during the transmission of heat from an external source (bain-marie, for example). By way of nonlimiting illustration, reference will be made, in what follows, to paraffinic complexes, since these are, among the thermal complexes, those whose uses are the oldest and most varied. It is known in particular that the melting point of paraffins is in direct relation with their molecular mass, which offers a very wide range of solidification stages, made even more varied by means of the mixtures. What is more, it is known to incorporate in these complexes various charges, and in particular metals, their oxides or their salts, which allows those skilled in the art to play on the volume thermal reserve and on the heat transfer coefficient. However, if uses such as a bain-marie are simple, the uses of such complexes, for example for envelopes or other linings, arise from handling, precautions and time.
La présente invention a donc pour objet des complexes pré-emballés que l'on emploie directement tels quels dans leur emballage. De plus, ce s emballages sont conçus pour as surer un contrôle de la tempéra¬ ture en cours d' utilisation, limiter les pertes thermique s inutile s, et permettre leur réemploi.The present invention therefore relates to prepackaged complexes which are used directly as such in their packaging. In addition, this packaging is designed to provide temperature control during use, limit unnecessary heat loss, and allow it to be reused.
Selon un premier aspect de cette invention, celle -ci vise des com¬ plexe s thermiques caractérisés en ce qu'ils sont constitués par au moins un volume élémentaire et emballés dans au moins une feuille résistant à la température d' emploi desdits complexes.According to a first aspect of this invention, it is aimed at thermal complexes characterized in that they consist of at least one elementary volume and packaged in at least one sheet resistant to the temperature of use of said complexes.
Selon un second aspect de cette invention, celle -ci vise des complexe s thermique s caractérisés en ce qu'ils sont constitués par au moins un volume élémentaire et emballés dans au moins une feuille résistant à la température d' emploi de sdits complexes et réfléchissant le s rayons infrarouges d'un côté et/ou de l'autre côté du complexe. D'autres caractéristiques et avantages de cette invention re ssortiront de la description faite ci-après en référence aux des sins annexés, qui en illustrent divers exemples de réalisation dépourvus de tout carac ¬ tère limitatif. Les Figure s des des sins illustrent les complexe s se - Ion l'invention, vus en coupe.According to a second aspect of this invention, the latter relates to thermal complexes characterized in that they consist of at least one elementary volume and packaged in at least one sheet resistant to the temperature of use of said complexes and reflecting the infrared rays on one side and / or on the other side of the complex. Other characteristics and advantages of this invention will emerge from the description given below with reference to the appended drawings, which illustrate various embodiments thereof devoid of any limiting character. The figures of the sins illustrate the complexes s - Ion the invention, seen in section.
Dans le mode de réalisation illustré par la Figure 1 , des cylindre s de complexes thermique s 1 sont insérés entre deux feuille s 2 et 3, le s feuille s étant soudées à la partie périphérique sur tout le pourtour de l'ensemble de s cylindre s disposés parallèlement entre eux, et entre les cylindres, en 4. Les feuilles enveloppant les cylindres peuvent être en tous matériaux thermoplastique s résistant aux tempé ¬ rature s d' emploi. On a obtenu d'excellents résultats avec de s feuille s de polychlorure de vinyle. Les soudures entre les deux feuilles peuvent être faites par voie thermique ou par haute fréquence, par exemple.In the embodiment illustrated in FIG. 1, cylinders of thermal complexes s 1 are inserted between two sheets s 2 and 3, the sheet s being welded to the peripheral part around the entire periphery of the set of s cylinder. s arranged parallel to each other, and between the cylinders, at 4. The sheets enveloping the cylinders can be made of any thermoplastic material that is resistant to temperature. Excellent results have been obtained with polyvinyl chloride sheets. The welds between the two sheets can be made thermally or by high frequency, for example.
Il peut être également intéressant d'effectuer ce s opérations sous vide, ce qui évite, bien entendu, la présence de bulle s d'air au moment de la soudure, bulles qui risquent de gonfler e.t de déformer les feuille s lors de l'emploi.It may also be advantageous to carry out these operations under vacuum, which of course avoids the presence of air bubbles at the time of welding, bubbles which are liable to swell and deform the sheets during employment.
Il e st souhaitable que, sur la périphérie de l'ensemble, de s trous 5 soient prévus, ce qui permet, à l'aide d'un cordonnet, d'attacher des ensemble s, tels que ceux représentés à la Figure 1 , côte a. côte ou bout a bout. On peut, bien entendu, recourir à tous le s moyens d'at¬ tache : pressions, agrafes, fermetures coulis santes et autres.It is desirable that, on the periphery of the assembly, s holes 5 are provided, which makes it possible, using a cord, to attach assemblies s, such as those represented in FIG. 1, side a. side or end to end. It is, of course, possible to use all the means of attachment: pressures, staples, sliding closures and the like.
L' utilisateur prend une plaque, telle que celle représentée à la Figure 1 ; il peut la tremper directement dans l'eau chaude pour atteindre la température voulue, et, lorsqu'il la s ort, il peut l'appliquer directe ¬ ment au lieu d' utilisation, par exemple sur une partie du corps, dans le cas d'emploi thérapeutique. Les cylindres s' étant ramollis à laThe user takes a plate, such as that shown in Figure 1; he can dip it directly in hot water to reach the desired temperature, and, when it s ort, he can apply it directly to the place of use, for example on a part of the body, in the case therapeutic use. The cylinders having softened at the
OMPI chaleur, ils vont avoir tendance à s'écraser du côté en contact avec le sujet, ce qui va augmenter la surface de contact, comme repré¬ senté schématiquement à la Figure 2.WIPO heat, they will tend to crush on the side in contact with the subject, which will increase the contact surface, as shown schematically in Figure 2.
Le réemploi est extrêmement aisé, puisqu'il suffit, en fin d'usage, de retirer l'ensemble, et, lors de l'utilisation suivante, de le ré¬ chauffer comme il vient d'être dit ci-dessus.The reuse is extremely easy, since it suffices, at the end of use, to remove the assembly, and, during the next use, to reheat it as has just been said above.
La soudure intermédiaire entre deux cylindres, indiqués en 4 sur les Figures 1 et 2, peut ne pas être continue de bout en bout jusqu'à la soudure périphérique, ce qui permet certaines communications entre les chambres contenant chacun des cylindres ; ceci peut permettre, notamment, de faciliter l'élimination de bulles, si l'on a soudé les feuilles sous vide.The intermediate weld between two cylinders, indicated at 4 in FIGS. 1 and 2, may not be continuous from end to end until the peripheral weld, which allows certain communications between the chambers containing each of the cylinders; this can make it possible, in particular, to facilitate the elimination of bubbles, if the sheets have been welded under vacuum.
Dans la variante de l'invention illustrée par la Figure 3, au lieu de partir de cylindres, on utilise des prismes, de section générale trian¬ gulaire, hémisphérique, se mi -elliptique ou trapézoïdale, ce qui cor¬ respond de façon plus précise à l'usage désiré, en améliorant notam- ment le contact entre le sujet et l'ensemble thermique. Il peut être également intéressant, comme représenté à la Figure 3, d'ajouter une ou plusieurs couches 6 en matière isolante ; cela peut éviter notam¬ ment les déperditions calorifiques, ou tout au moins les limiter.In the variant of the invention illustrated in FIG. 3, instead of starting from cylinders, prisms are used, of general trian¬ gular, hemispherical, semi-elliptical or trapezoidal section, which corresponds more precisely for the desired use, notably improving the contact between the subject and the thermal unit. It may also be advantageous, as shown in Figure 3, to add one or more layers 6 of insulating material; this can avoid heat losses, or at least limit them.
Dans la variante illustrée par la Figure 4, des prismes de complexes thermiques 10 sont insérés entre deux feuilles 12 et 13, les feuilles étant soudées à la partie périphérique sur tout le pourtour de l'en¬ semble des prismes disposés parallèlement entre eux, et entre les prismes, en 14. Comme dans l'ensemble précédent, les feuilles enve- loppant les prismes peuvent être en tous matériaux thermoplastiques résistant aux températures d'emploi. On a obtenu d'excellents résul¬ tats avec des feuilles de polychlorure de vinyle. Une feuille métallique 16 est fixée, par exemple, par collage sur la feuille 12. Selon l'in-In the variant illustrated in FIG. 4, prisms of thermal complexes 10 are inserted between two sheets 12 and 13, the sheets being welded to the peripheral part around the entire periphery of the set of prisms arranged parallel to each other, and between the prisms, at 14. As in the previous assembly, the sheets surrounding the prisms can be made of any thermoplastic material resistant to the temperatures of use. Excellent results have been obtained with polyvinyl chloride sheets. A metal sheet 16 is fixed, for example, by bonding to the sheet 12. According to the invention
OMPI vention, cette feuille 16 est, de préférence, réfléchis sante, par exemple du côté de la feuille 12. Ainsi, lorsque l'ensemble e st ap¬ pliqué du côté de la feuille 13 sur le corps à réchauffer, cette feuille réfléchissante 16 sert alors d'enveloppe, et, simultanément, elle ré ¬ fléchit les infrarouges qui sont émis par le complexe. Bien entendu, la feuille 16 peut être rendue réfléchissante du côté opposé à la feuille 12, ou même sur les deux côtés de cette feuille.WIPO vention, this sheet 16 is preferably health reflected, for example on the side of the sheet 12. Thus, when the assembly is applied on the side of the sheet 13 on the body to be heated, this reflective sheet 16 serves then envelope, and simultaneously it re ¬ reflects the infrared which is emitted by the complex. Of course, the sheet 16 can be made reflective on the side opposite to the sheet 12, or even on both sides of this sheet.
Dans cet exemple de réalisation, on prévoit également de s trous 15, permettant d'attacher des ensemble s tels que ceux représentés à la Figure 4, soit côte à côte, soit bout à bout. La mise en oeuvre de cette variante de l'invention s 'effectue de la façon décrite ci-de s sus, en référence aux Figures 1 à 3.In this exemplary embodiment, s holes 15 are also provided, making it possible to attach assemblies s such as those shown in FIG. 4, either side by side or end to end. The implementation of this variant of the invention is carried out in the manner described above, with reference to Figures 1 to 3.
II peut être intéres sant, comme représenté sur la Figure 5, de pré¬ voir une feuille réfléchissante supplémentaire 19, placée du côté de l' utilisation. On notera, à cet égard, que l'une et/ou l'autre de ces feuille s réfléchis sante s 16 ou 19 peuvent être placée s à l'extérieur ou à l'intérieur par rapport aux feuilles 12 et 1.3. On peut également pré- voir au moins une feuille isolante supplémentaire, qui est placée du côté extérieur par rapport a l' utilisation (côté 12, 16).It may be of interest, as shown in FIG. 5, to provide an additional reflective sheet 19, placed on the side of use. It will be noted, in this regard, that one and / or the other of these health reflective sheets 16 or 19 can be placed outside or inside with respect to sheets 12 and 1.3. It is also possible to provide at least one additional insulating sheet, which is placed on the outside with respect to use (side 12, 16).
L'effet de réflexion peut être obtenu par tout moyen approprié, et notamment par une métallisation de s feuille s telle s que 12 et 13 ou de s feuille s isolante s. L'avantage d' une telle réflexion du rayonnement infrarouge e st multiple :The reflection effect can be obtained by any suitable means, and in particular by metallization of s sheets such as 12 and 13 or of insulating sheets. The advantage of such a reflection of infrared radiation is multiple:
on évite les pertes calorifiques ver s l'extérieur ;calorific losses to the outside are avoided;
on aplatit le gradient de températures, ce qui entraîne un retard dans la solidification de la surface du complexe, et qui, dans le cas d'une réflexion double (Figure 5), retarde le durcissement ou la cristallisation du complexe thermique, du côté du corps à réchauffer,the temperature gradient is flattened, which causes a delay in the solidification of the surface of the complex, and which, in the case of a double reflection (Figure 5), delays the hardening or crystallization of the thermal complex, on the side of the body to warm up,
le système se comportant alors comme un miroir qui réfléchi t le s calories ; the system then behaving like a mirror which reflects the calories;
on réduit considérablement le rayonnement calorifique extérieur, ce qui permet de concentrer la transmission de la chaleur sur la seule conduction, permettant ainsi d' éliminer en partie, et même en totalité, l'usage de conducteurs tels que, par exemple, des charges métalliques ou des oxydes métalliques au sein des com¬ plexes.the external heat radiation is considerably reduced, which makes it possible to concentrate the transmission of heat on the only conduction, thus making it possible to eliminate in part, and even entirely, the use of conductors such as, for example, metallic charges or metal oxides within the complexes.
On peut également prévoir, selon la présente invention, un dispositif thermométrique, par exemple à cristaux liquides, placé en une zone quelconque de l' ensemble et du côté extérieur, lors de l'utilisation, permettant de contrôler la température du complexe thermique. Cette caractéristique peut être également utile lors du chauffage du complexe thermique, pour éviter de dépasser le palier de fusion et d'atteindre des température s dangereuses pour l'utilisation prévue, ou même pour ne pas risquer d'endommager les matériaux constituant le complexe. Un tel contrôle de température est également souhaitable lors de l'uti- lisation sur le sujet, pour éviter de maintenir trop longtemps en place des complexes ayant trop refroidi.One can also provide, according to the present invention, a thermometric device, for example with liquid crystals, placed in any zone of the assembly and on the outside, during use, making it possible to control the temperature of the thermal complex. This characteristic can also be useful when heating the thermal complex, to avoid going beyond the melting stage and reaching dangerous temperatures for the intended use, or even not to risk damaging the materials constituting the complex. Such temperature control is also desirable during use on the subject, in order to avoid holding complexes that have been over-cooled for too long.
Bien entendu, on peut envisager des dispositifs dans lesquels les élé¬ ments cylindriques ou. prismatiques de s complexes thermique s ne sont pas disposés en parallèle, mais selon une courbe, une ligne brisée ou polygonale, ou même selon des tablettes isolée s les une s de s autres à l'aide d'un cordon de soudure conférant à l' ensemble un aspect du type "tablette de chocolat" ou produit similaire. Les complexes ther ¬ miques selon la présente inve ntion peuvent être également utilisés pour des enveloppements en des zones où les plaques sont difficilement utilisables, même en leur conférant de s courbure s importantes. On peut alors recourir à de s boudins pouvant être ou non liés entre eux.Of course, it is possible to envisage devices in which the cylindrical elements or. prismatic s thermal complexes s are not arranged in parallel, but according to a curve, a broken or polygonal line, or even according to isolated shelves s one of s s others using a weld bead giving the 'together an aspect of the type "chocolate bar" or similar product. The thermal complexes according to the present invention can also be used for wraps in areas where the plates are difficult to use, even by giving them significant curvature. It is then possible to use s tubes which may or may not be linked together.
A cet effet, les complexes thermiques peuvent être extrudés dans un boyau, selon une technique bien connue dans l'industrie alimentaire. Le boudin ainsi obtenu peut être continu ou séparé à l'aide d'étrangle¬ ments, ou il peut être débité en sections fermées aux deux extrémités, par exemple par une ligature ou par une soudure. On peut ainsi uti¬ liser les complexes sur des surfaces très accidentées ou d'accès re¬ lativement difficile, pour des plaques telles que celles représentées sur les dessins. To this end, the thermal complexes can be extruded in a casing, according to a technique well known in the food industry. The strand thus obtained can be continuous or separated with the aid of strings, or it can be cut into closed sections at both ends, for example by a ligature or by a weld. It is thus possible to use the complexes on surfaces which are very uneven or of relatively difficult access, for plates such as those shown in the drawings.
On a mentionné ci-dessus des ensembles clos par deux feuilles thermo¬ plastiques avec un isolant éventuel. Il est bien évident que ces feuilles peuvent être complexes et comporter plusieurs couches. Par exemple, on peut coller l'une sur l'autre plusieurs couches plastiques ou métal¬ liques pour former la feuille. On associe ainsi la souplesse etl'apti- tude à la soudure des matières thermoplastiques à la résistance mé¬ canique et aux propriétés thermiques du métal.We mentioned above assemblies closed by two thermo¬ plastic sheets with an optional insulator. It is obvious that these sheets can be complex and have several layers. For example, one can glue one on the other several plastic or metallic layers to form the sheet. Flexibility and the ability to weld thermoplastic materials are thus associated with the mechanical resistance and the thermal properties of the metal.
On notera que la feuille 6 (Figure 3) ou 16 (Figures 4 et 5), qui est collée du côté plan à la feuille 2 ou 12, respectivement, permet l'ap- plication de la face opposée 3 ou 13, respectivement, sur une surface non plane. Dans le cas, par exemple, de l'application sur un cylindre, le petit côté des trapèzes 8 permet d'obtenir une courbure de l'en¬ semble épousant la forme à recouvrir, la face externe présentant la feuille 6 ou 16 qui, en coupe, suit de façon sensiblement parallèle le contour de la surface recevant l'application du complexe. On comprend que, selon les utilisations, on peut recourir à telle ou telle configura¬ tion de section, permettant, d'un côté, une transmission thermique op¬ timale, et, de l'autre côté, une transmission thermique minimale.Note that sheet 6 (Figure 3) or 16 (Figures 4 and 5), which is glued on the planar side to sheet 2 or 12, respectively, allows the application of the opposite face 3 or 13, respectively, on an uneven surface. In the case, for example, of application on a cylinder, the short side of the trapezoids 8 makes it possible to obtain a curvature of the en¬ seems to conform to the shape to be covered, the external face having the sheet 6 or 16 which, in section, follows in a substantially parallel fashion the contour of the surface receiving the application of the complex. It is understood that, depending on the uses, it is possible to have recourse to such and such a sectional configuration, allowing, on the one hand, an optimal thermal transmission, and, on the other hand, a minimum thermal transmission.
On peut également armer les feuilles à l'aide de fils ou de tissus en¬ robés dans une masse plastique ou collés entre deux feuilles thermo¬ plastiques. 8It is also possible to arm the sheets using wires or fabrics coated in a plastic mass or glued between two thermo-plastic sheets. 8
Parmi les applications de la présente invention, on peut citer par exemple la transmission de calories ou de frigories au corps humain, par contact, notamment pour des traitements de thermothérapie ou de cr othérapie, les complexes selon l'invention constituant des élé - me ts thermo-diffusi s.Among the applications of the present invention, there may be mentioned for example the transmission of calories or frigories to the human body, by contact, in particular for thermotherapy or cr otherapy treatments, the complexes according to the invention constituting elements - me ts thermo-diffused.
Il demeure bien entendu que la présente invention n'est pas limitée aux divers exemples de réalisation ou d'application mentionnés ci- dessus, mais qu'elle en englobe toutes les variantes. En particulier, on peut diviser les complexes thermiques en volumes élémentaires et le s emballer dans une ou plusieurs feuille s résistant à la tempéra¬ ture d'emploi, en les disposant de préférence de manière à présenter la plus large surface du côté de la transmission thermique, et. de l'autre côté, la meilleure isolation, dans la mesure du possible.It remains to be understood that the present invention is not limited to the various embodiments or applications mentioned above, but that it encompasses all variants thereof. In particular, the thermal complexes can be divided into elementary volumes and packaged in one or more sheets resistant to the use temperature, preferably arranged so as to present the largest surface on the side of the transmission. thermal, and. on the other side, the best insulation, as much as possible.
On peut également envisager une variante particulièrement simple et économique à réaliser, qui, comme on peut le voir sur la Figure 6, se présente sous la forme d' une poche 20, délimitant un volume élé¬ mentaire contenant le complexe thermique, cette poche étant constituée à partir d'une feuille qui résiste à la température d'emploi du com¬ plexe, cette feuille étant réalisée selon un complexe- comprenant une feuille extérieure 22 et une feuille intérieure 24 qui réfléchit le rayon¬ nement infrarouge, la face réfléchissante 24a étant orientée, de pré¬ férence, vers le complexe. Grâce à cette variante, la cristallisation du complexe est retardée du côté du corps à réchauffer et à la s urface du contact avec ce corps, ce qui as sure une plus longue durée de la plasticité de l'ensemble au contact du corps de l'utilisateur du com¬ plexe. It is also possible to envisage a particularly simple and economical variant to produce, which, as can be seen in FIG. 6, is in the form of a pocket 20, delimiting an elementary volume containing the thermal complex, this pocket being formed from a sheet which resists the temperature of use of the complex, this sheet being produced according to a complex comprising an outer sheet 22 and an inner sheet 24 which reflects the infrared ray, the reflecting face 24a being oriented, preferably, towards the complex. Thanks to this variant, the crystallization of the complex is delayed on the side of the body to be heated and at the surface of the contact with this body, which has a longer duration of the plasticity of the whole in contact with the body of the user of the complex.

Claims

Revendications de brevet Patent claims
1. Complexes thermiques caractérisés en ce qu'ils sont constitués par au moins un volume élémentaire et emballés dans au moins une feuille qui résiste à la température d' emploi desdits complexes.1. Thermal complexes characterized in that they consist of at least one elementary volume and packaged in at least one sheet which resists the temperature of use of said complexes.
2. Complexes thermiques selon la revendication 1, caractérisés en ce que ladite feuille résistant à la température d' emploi desdits complexes réfléchit le rayonnement infrarouge sur l'un de ses côtés au moins.2. Thermal complexes according to claim 1, characterized in that said sheet resistant to the temperature of use of said complexes reflects infrared radiation on at least one of its sides.
3. Complexes thermiques selon la revendication 2, caractérisés en ce que ladite feuille réfléchit le rayonnement infrarouge du côté du complexe.3. Thermal complexes according to claim 2, characterized in that said sheet reflects infrared radiation on the side of the complex.
4. Complexes thermiques selon l'une quelconque des revendications 1 à 3, caractérisés en ce que l'une au moins des feuilles est thermo¬ plastique et fixée sur une autre feuille.4. Thermal complexes according to any one of claims 1 to 3, characterized in that at least one of the sheets is thermo¬ plastic and fixed on another sheet.
5. Complexes thermiques selon l'une quelconque des revendications5. Thermal complexes according to any one of claims
1 à 4, caractérisés en ce que l'une des feuilles au moins est composite.1 to 4, characterized in that at least one of the sheets is composite.
6. Complexes thermiques selon l'une quelconque des revendications 1 à 5, caractérisés en ce que les volumes élémentaires constituent des boudins.6. Thermal complexes according to any one of claims 1 to 5, characterized in that the elementary volumes constitute tubes.
7. Complexes thermiques selon l'une quelconque des revendications 1 à 5, caractérisés en ce que les volumes élémentaires constituent des tablettes.7. Thermal complexes according to any one of claims 1 to 5, characterized in that the elementary volumes constitute tablets.
8. Complexes thermiques selon l'une quelconque des revendications 1 à 7, caractérisés en ce que l'une des feuilles au moins est armée. .08. Thermal complexes according to any one of claims 1 to 7, characterized in that at least one of the sheets is reinforced. .0
9. Complexes thermique s selon l'une quelconque des revendications 1 à 8, caractérisés en ce que l'une au moins de s feuilles déborde sur le pourtour de l'emballage, et elle est munie de dispositifs permettant sa fixation à d'autres éléments analogues.9. Thermal complexes according to any one of claims 1 to 8, characterized in that at least one of the sheets extends beyond the periphery of the packaging, and it is provided with devices allowing its attachment to other analogous elements.
10. Complexes thermique s selon l'une quelconque de s revendications 1 à 9, caractérisés en ce qu'ils sont emballés sous vide.10. Thermal complexes according to any one of Claims 1 to 9, characterized in that they are vacuum-packed.
11. Complexes thermique s selon l'une quelconque des revendications l 10, caractérisés en ce qu'ils comportent un ou plusieurs disposi¬ tifs thermométrique s de contrôle.11. Thermal complexes according to any one of claims l 10, characterized in that they comprise one or more thermometric control devices.
12. Complexes thermiques selon l'une quelconque des revendications 1 à 11 , caractérisés en ce que l'une des feuilles est associée à une feuille métallique réfléchissante.12. Thermal complexes according to any one of claims 1 to 11, characterized in that one of the sheets is associated with a reflecting metallic sheet.
13. Complexes thermiques selon l'une quelconque de s revendications précédentes, caractérisés en ce que le volume élémentaire est em¬ ballé dans une poche qui est réalisée à partir d'une feuille constituée d'un complexe comprenant une feuille extérieure et une feuille inté¬ rieure qui réfléchit le rayonnement infrarouge, de préférence vers le complexe. 13. Thermal complexes according to any one of the preceding claims, characterized in that the elementary volume is wrapped in a pocket which is produced from a sheet consisting of a complex comprising an outer sheet and an inner sheet ¬ higher which reflects infrared radiation, preferably towards the complex.
EP84902347A 1983-04-01 1984-06-18 Improvements to thermal complexes Withdrawn EP0183690A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR838305430A FR2543670B1 (en) 1983-04-01 1983-04-01 IMPROVEMENTS ON PREPACKED THERMAL COMPLEXES
FR8305429A FR2543669B1 (en) 1983-04-01 1983-04-01 IMPROVEMENTS ON THERMAL COMPLEXES
PCT/FR1984/000152 WO1986000219A1 (en) 1983-04-01 1984-06-18 Improvements to thermal complexes

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EP0183690A1 true EP0183690A1 (en) 1986-06-11

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Publication number Publication date
FR2543670B1 (en) 1989-02-03
FR2543670A1 (en) 1984-10-05
FR2543669B1 (en) 1989-01-20
FR2543669A1 (en) 1984-10-05
WO1986000219A1 (en) 1986-01-16

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