EP3250871A1 - Thermal battery with encapsulated phase-change material and associated production method - Google Patents

Thermal battery with encapsulated phase-change material and associated production method

Info

Publication number
EP3250871A1
EP3250871A1 EP16701760.7A EP16701760A EP3250871A1 EP 3250871 A1 EP3250871 A1 EP 3250871A1 EP 16701760 A EP16701760 A EP 16701760A EP 3250871 A1 EP3250871 A1 EP 3250871A1
Authority
EP
European Patent Office
Prior art keywords
tubes
thermal battery
enclosure
foam
placing
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Withdrawn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
EP16701760.7A
Other languages
German (de)
French (fr)
Inventor
Samuel BRY
Patrick Boisselle
Kamel Azzouz
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.)
Valeo Systemes Thermiques SAS
Original Assignee
Valeo Systemes Thermiques SAS
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 Valeo Systemes Thermiques SAS filed Critical Valeo Systemes Thermiques SAS
Publication of EP3250871A1 publication Critical patent/EP3250871A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/023—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/007—Auxiliary supports for elements
    • F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
    • F28F9/0135—Auxiliary supports for elements for tubes or tube-assemblies formed by grids having only one tube per closed grid opening
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0004—Particular heat storage apparatus
    • F28D2020/0017—Particular heat storage apparatus the heat storage material being enclosed in porous or cellular or fibrous structures
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • Encapsulated phase change material thermal battery and method of manufacturing the same are Encapsulated phase change material thermal battery and method of manufacturing the same.
  • the present invention relates to the field of thermal batteries and more specifically the thermal batteries comprising a phase change material.
  • Thermal batteries are generally used for heating the passenger compartment, in particular in electric and hybrid vehicles or for preheating a heat transfer fluid in a thermal management circuit. Thermal batteries can also be used for preheating engine oil or automatic gearbox oil of internal combustion engine vehicles.
  • a thermal battery with phase-change materials generally comprises an enclosure forming a tank inside which is placed the phase-change material generally in encapsulated form.
  • the performance of the thermal battery is thus dependent on the amount of phase change material that it can contain coupled with the requirement of a circulation of fluid within the tank with the lowest possible pressure drops.
  • An object of the present invention is therefore to at least partially overcome the disadvantages of the prior art and to provide an improved thermal battery.
  • the present invention therefore relates to a thermal battery comprising an enclosure comprising an inlet and a fluid outlet and comprising within it tubes of material with a change of encapsulated phase, said tubes being arranged parallel to the flow of fluid flow, said thermal battery further comprising a device for holding and spacing the tubes of encapsulated phase change material, said holding and spacer device being disposed between the tubes themselves and between the tubes and the enclosure, said holding and spacer device being porous.
  • the holding device and spacing is porous and is disposed between the tubes themselves and between the tubes and the enclosure allows optimum retention of said tubes within the enclosure and also allows circulation fluid in the thermal battery with limited pressure losses.
  • the holding device and spacer comprises at least one rigid grid, the tubes passing through the mesh of said grid.
  • the holding and spacer device comprises at least two grids and that said grids are kept at a distance from each other by means of fixing or locking said grids against the enclosure.
  • the holding device and spacing comprises at least two grids and said grids are kept at a distance from one another by means of spacers.
  • the holding device and spacer comprises a foam placed within the enclosure and surrounding the tubes.
  • the foam has a porosity of between 50 to 95%.
  • the present invention also relates to a method of manufacturing a thermal battery comprising encapsulated phase change material tubes, said method comprising a step of placing the encapsulated phase change material tubes within a device. maintaining and spacing porous.
  • the step of placing the tubes consists of inserting said tubes in the meshes of at least one rigid grid.
  • the step of inserting the tubes in the meshes of at least one rigid grid is preceded by a step of placing the at least one rigid grid within the enclosure of the thermal battery.
  • the step of inserting the tubes in the meshes of at least one rigid grid is carried out outside the enclosure and that the method comprises an additional step of setting up the together formed by said tubes and the at least one rigid grid within the enclosure of the thermal battery.
  • the step of placing the tubes consists of placing said tubes in a foam.
  • the step of placing the tubes in a foam comprises a first stage of installation of the foam within the enclosure of the thermal battery and a second stage of insertion of the tubes within said foam.
  • the step of placing the tubes in a foam comprises a first stage of installation of the tubes in the enclosure of the thermal battery and a second stage of installation of the foam at within the enclosure so as to surround said tubes.
  • FIG. 1 shows a schematic representation in perspective of a section of a thermal battery according to a first embodiment
  • FIG. 2 shows a schematic representation in perspective of the internal elements of a thermal battery according to a second embodiment.
  • FIG. 1 shows a diagrammatic representation in section of a thermal battery 1 comprising an enclosure 3 comprising an inlet and a fluid outlet (not shown).
  • the chamber 3 comprises within it tubes 5 of encapsulated phase change material.
  • the tubes 5 are preferably arranged parallel to the flow flow of the fluid (represented by arrows).
  • the thermal battery 1 further comprises a device for holding and spacing the tubes 7 of encapsulated phase change material.
  • the holding and spacer device 7 is disposed between the tubes 5 themselves and between the tubes 5 and the enclosure 3. In order to allow the circulation of the fluid through the thermal battery 1, the holding device and the Spacer 7 is porous.
  • the holding and spacer device 7 comprises a foam placed inside the enclosure and surrounding the tubes 5. It is an expanded foam of the polyurethane type, Low density polyethylene or metal with open cells to allow fluid flow. In order to have a circulation of the fluid through the thermal battery with the least possible loss of charge, the porosity of the foam is preferably between 50 and 95%.
  • the foam preferably completely fills the enclosure 3 in order to obtain a good hold of the tubes 5.
  • the holding device and spacing 7 comprises at least one rigid grid, the tubes 5 then pass through the mesh of said rigid grid to be maintained.
  • the holding and spacer device 7 comprises at least two grids each placed at one end of said tubes 5. These grids are kept at a distance from each other by means of fixing or locking said grids against the enclosure 3. These means are for example a bonding, soldering or the presence of stops on the inner wall of the enclosure 3 so that the grids are not displaced during the circulation of the fluid within the thermal battery.
  • the grids can also be kept at a distance from one another by means of spacers placed between them.
  • the present invention also relates to the method of manufacturing the thermal battery 1 comprising tubes 5 of encapsulated phase change material. This method then comprises a step of placing the tubes 5 of encapsulated phase change material in a porous holding and spacer device 7.
  • this step of placing the tubes 5 within the porous holding and spacer device 7 consists of placing said tubes 5 in a foam.
  • the step of placing the tubes 5 in the foam may comprise a first step of installing the foam within the chamber 3 of the thermal battery 1 and a second step of insertion of the tubes (5) within of said foam.
  • the step of placing the tubes 5 in the foam comprises a first step of installing the tubes 5 in the enclosure of the thermal battery and a second stage of installation of the foam within the enclosure 3 so as to surround said tubes 5.
  • the installation of the foam within the chamber 3 can be carried out by injecting and expanding said foam directly into the chamber 3 or by introducing a preformed foam into the chamber 3 .
  • the step of placing the tubes 5 inside the porous holding and spacer device 7 consists of inserting said tubes 5 into the meshes of at least one rigid grid .
  • This step of insertion of the tubes 5 into the meshes of at least one rigid grid may be preceded by a step of placing the at least one rigid grid within the enclosure 3 of the thermal battery 1. tubes 5 are then inserted into the meshes of at least one grid inside the chamber 3.
  • the step of insertion of the tubes 5 in the meshes of at least one rigid grid is performed outside the chamber 3.
  • the method then comprises an additional step of setting up the assembly formed by said tubes 5 and the at least one rigid grid within the enclosure 3 of the thermal battery 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Secondary Cells (AREA)
  • Hybrid Cells (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The invention relates to a thermal battery (1) comprising a chamber (3) having an inlet and an outlet for fluid and containing tubes (5) made from encapsulated phase-change material. The thermal battery (1) also comprises a device (7) for maintaining the tubes (5) of encapsulated phase-change material in position at a distance from one another, said device (7) being disposed between the tubes (5) and between the tubes (5) and the chamber (3), and said device (7) being porous.

Description

Batterie thermique à matériau à changement de phase encapsulé et procédé de fabrication associé.  Encapsulated phase change material thermal battery and method of manufacturing the same.

La présente invention concerne le domaine de batteries thermiques et plus précisément les batteries thermiques comportant un matériau à changement de phase. The present invention relates to the field of thermal batteries and more specifically the thermal batteries comprising a phase change material.

Les batteries thermiques sont généralement utilisées pour le chauffage de l'habitacle, notamment dans des véhicules électriques et hybrides ou alors pour le préchauffage d'un fluide caloporteur dans un circuit de gestion thermique. Les batteries thermiques peuvent également être utilisées pour le préchauffage de l'huile moteur ou de l'huile de boite de transmission automatique de véhicules à moteur à combustion interne. Thermal batteries are generally used for heating the passenger compartment, in particular in electric and hybrid vehicles or for preheating a heat transfer fluid in a thermal management circuit. Thermal batteries can also be used for preheating engine oil or automatic gearbox oil of internal combustion engine vehicles.

Une batterie thermique à matériaux à changement de phase comporte généralement une enceinte formant un réservoir à l'intérieur duquel est placé le matériau à changement de phase généralement sous forme encapsulée. Les performances de la batterie thermique sont ainsi dépendantes de la quantité de matériau à changement de phase qu'elle peut contenir couplé avec l'obligation d'une circulation du fluide au sein du réservoir avec des pertes de charges les plus faibles possibles. A thermal battery with phase-change materials generally comprises an enclosure forming a tank inside which is placed the phase-change material generally in encapsulated form. The performance of the thermal battery is thus dependent on the amount of phase change material that it can contain coupled with the requirement of a circulation of fluid within the tank with the lowest possible pressure drops.

Un des buts de la présente invention est donc de remédier au moins partiellement aux inconvénients de l'art antérieur et de proposer une batterie thermique améliorée. An object of the present invention is therefore to at least partially overcome the disadvantages of the prior art and to provide an improved thermal battery.

La présente invention concerne donc une batterie thermique comportant une enceinte comprenant une entrée et une sortie de fluide et comprenant en son sein des tubes de matériau à changement de phase encapsulé, lesdits tubes étant disposés parallèlement au flux de circulation du fluide, ladite batterie thermique comportant en outre un dispositif de maintien et d'écartement des tubes de matériau à changement de phase encapsulé, ledit dispositif de maintien et d'écartement étant disposé entre les tubes eux même et entre les tubes et l'enceinte, ledit dispositif de maintien et d'écartement étant poreux. The present invention therefore relates to a thermal battery comprising an enclosure comprising an inlet and a fluid outlet and comprising within it tubes of material with a change of encapsulated phase, said tubes being arranged parallel to the flow of fluid flow, said thermal battery further comprising a device for holding and spacing the tubes of encapsulated phase change material, said holding and spacer device being disposed between the tubes themselves and between the tubes and the enclosure, said holding and spacer device being porous.

Le fait que le dispositif de maintien et d'écartement soit poreux et qu'il soit disposé entre les tubes eux-mêmes et entre les tubes et l'enceinte permet un maintien optimal desdits tubes au sein de l'enceinte et permet également une circulation du fluide dans la batterie thermique avec des pertes de charges limitées.  The fact that the holding device and spacing is porous and is disposed between the tubes themselves and between the tubes and the enclosure allows optimum retention of said tubes within the enclosure and also allows circulation fluid in the thermal battery with limited pressure losses.

Selon un aspect de l'invention, le dispositif de maintien et d'écartement comporte au moins une grille rigide, les tubes passant au travers des mailles de ladite grille. According to one aspect of the invention, the holding device and spacer comprises at least one rigid grid, the tubes passing through the mesh of said grid.

Selon un autre aspect de l'invention, le dispositif de maintien et d'écartement comporte au moins deux grilles et que lesdites grilles sont maintenues à distance l'une de l'autre au moyen fixation ou blocage desdites grilles contre l'enceinte. According to another aspect of the invention, the holding and spacer device comprises at least two grids and that said grids are kept at a distance from each other by means of fixing or locking said grids against the enclosure.

Selon un autre aspect de l'invention, le dispositif de maintien et d'écartement comporte au moins deux grilles et que lesdites grilles sont maintenues à distance l'une de l'autre au moyen d'entretoises. According to another aspect of the invention, the holding device and spacing comprises at least two grids and said grids are kept at a distance from one another by means of spacers.

Selon un autre aspect de l'invention, le dispositif de maintien et d'écartement comporte une mousse placée au sein de l'enceinte et entourant les tubes. Selon un autre aspect de l'invention, la mousse a une porosité comprise entre 50 à 95%. According to another aspect of the invention, the holding device and spacer comprises a foam placed within the enclosure and surrounding the tubes. According to another aspect of the invention, the foam has a porosity of between 50 to 95%.

La présente invention concerne également un procédé de fabrication d'une batterie thermique comportant des tubes de matériau à changement de phase encapsulé, ledit procédé comprenant une étape de mise en place des tubes de matériau à changement de phase encapsulé au sein d'un dispositif de maintien et d'écartement poreux. Selon un aspect du procédé selon l'invention, l'étape de mise en place des tubes consiste en une insertion desdits tubes dans les mailles d'au moins une grille rigide. The present invention also relates to a method of manufacturing a thermal battery comprising encapsulated phase change material tubes, said method comprising a step of placing the encapsulated phase change material tubes within a device. maintaining and spacing porous. According to one aspect of the method according to the invention, the step of placing the tubes consists of inserting said tubes in the meshes of at least one rigid grid.

Selon un autre aspect du procédé selon l'invention, l'étape d'insertion des tubes dans les mailles d'au moins une grille rigide est précédé d'une étape de mise en place de la au moins une grille rigide au sein de l'enceinte de la batterie thermique. According to another aspect of the method according to the invention, the step of inserting the tubes in the meshes of at least one rigid grid is preceded by a step of placing the at least one rigid grid within the enclosure of the thermal battery.

Selon un aspect du procédé selon l'invention, l'étape d'insertion des tubes dans les mailles d'au moins une grille rigide est réalisée en dehors de l'enceinte et que le procédé comporte une étape supplémentaire de mise en place de l'ensemble formé par lesdits tubes et l'au moins une grille rigide au sein de l'enceinte de la batterie thermique. According to one aspect of the method according to the invention, the step of inserting the tubes in the meshes of at least one rigid grid is carried out outside the enclosure and that the method comprises an additional step of setting up the together formed by said tubes and the at least one rigid grid within the enclosure of the thermal battery.

Selon un aspect du procédé selon l'invention, l'étape de mise en place des tubes consiste en une mise en place desdits tubes dans une mousse. Selon un aspect du procédé selon l'invention, l'étape de mise en place des tubes dans une mousse comporte une première étape d'installation de la mousse au sein de l'enceinte de la batterie thermique et une seconde étape d'insertion des tubes au sein de ladite mousse. According to one aspect of the method according to the invention, the step of placing the tubes consists of placing said tubes in a foam. According to one aspect of the process according to the invention, the step of placing the tubes in a foam comprises a first stage of installation of the foam within the enclosure of the thermal battery and a second stage of insertion of the tubes within said foam.

Selon un aspect du procédé selon l'invention, l'étape de mise en place des tubes dans une mousse comporte une première étape d'installation des tubes dans l'enceinte de la batterie thermique et une seconde étape d'installation de la mousse au sein de l'enceinte de sorte à entourer lesdits tubes. According to one aspect of the process according to the invention, the step of placing the tubes in a foam comprises a first stage of installation of the tubes in the enclosure of the thermal battery and a second stage of installation of the foam at within the enclosure so as to surround said tubes.

D'autres caractéristiques et avantages de l'invention apparaîtront plus clairement à la lecture de la description suivante, donnée à titre d'exemple illustratif et non limitatif, et des dessins annexés parmi lesquels : Other features and advantages of the invention will emerge more clearly on reading the following description, given by way of illustrative and nonlimiting example, and the appended drawings among which:

la figure 1 montre une représentation schématique en perspective d'une coupe d'une batterie thermique selon un premier mode de réalisation,  FIG. 1 shows a schematic representation in perspective of a section of a thermal battery according to a first embodiment,

la figure 2 montre une représentation schématique en perspective des éléments intérieurs d'une batterie thermique selon un second mode de réalisation.  FIG. 2 shows a schematic representation in perspective of the internal elements of a thermal battery according to a second embodiment.

Sur les différentes figures, les éléments identiques portent les mêmes numéros de référence. In the different figures, the identical elements bear the same reference numbers.

La figure 1 montre une représentation schématique en coupe d'une batterie thermique 1 comportant une enceinte 3 comprenant une entrée et une sortie de fluide (non représentés). L'enceinte 3 comprend en son sein des tubes 5 de matériau à changement de phase encapsulé. Les tubes 5 sont préférentiellement disposés parallèlement au flux de circulation du fluide (représenté par des flèches). FIG. 1 shows a diagrammatic representation in section of a thermal battery 1 comprising an enclosure 3 comprising an inlet and a fluid outlet (not shown). The chamber 3 comprises within it tubes 5 of encapsulated phase change material. The tubes 5 are preferably arranged parallel to the flow flow of the fluid (represented by arrows).

La batterie thermique 1 comporte en outre un dispositif de maintien et d'écartement 7 des tubes 5 de matériau à changement de phase encapsulé. Le dispositif de maintien et d'écartement 7 est disposé entre les tubes 5 eux-mêmes et entre les tubes 5 et l'enceinte 3. Afin de permettre la circulation du fluide au travers de la batterie thermique 1, le dispositif de maintien et d'écartement 7 est poreux.  The thermal battery 1 further comprises a device for holding and spacing the tubes 7 of encapsulated phase change material. The holding and spacer device 7 is disposed between the tubes 5 themselves and between the tubes 5 and the enclosure 3. In order to allow the circulation of the fluid through the thermal battery 1, the holding device and the Spacer 7 is porous.

Le fait que le dispositif de maintien et d'écartement 7 soit poreux et qu'il soit disposé entre les tubes 5 eux-mêmes et entre les tubes 5 et l'enceinte 3 permet un maintien optimal desdits tubes 5 au sein de l'enceinte 3 et permet également une circulation du fluide dans la batterie thermique 1 avec des pertes de charges limitées. Selon un premier mode de réalisation présenté à la figure 1, le dispositif de maintien et d'écartement 7 comporte une mousse placée au sein de l'enceinte et entourant les tubes 5. Il s'agit d'une mousse expansée de type polyuréthane, polyéthylène ou métallique de basse densité avec des cellules ouvertes afin de permettre la circulation du fluide. Afin d'avoir une circulation du fluide au travers de la batterie thermique avec le moins de pertes de charges possible, la porosité de la mousse est de préférence comprise entre 50 et 95%.  The fact that the holding device and spacer 7 is porous and that it is disposed between the tubes 5 themselves and between the tubes 5 and the enclosure 3 allows optimum retention of said tubes 5 within the enclosure 3 and also allows a circulation of the fluid in the thermal battery 1 with limited pressure losses. According to a first embodiment shown in FIG. 1, the holding and spacer device 7 comprises a foam placed inside the enclosure and surrounding the tubes 5. It is an expanded foam of the polyurethane type, Low density polyethylene or metal with open cells to allow fluid flow. In order to have a circulation of the fluid through the thermal battery with the least possible loss of charge, the porosity of the foam is preferably between 50 and 95%.

La mousse remplie de préférence complètement l'enceinte 3 afin d'obtenir un bon maintien des tubes 5.  The foam preferably completely fills the enclosure 3 in order to obtain a good hold of the tubes 5.

Selon un second mode de réalisation illustré à la figure 2, le dispositif de maintien et d'écartement 7 comporte au moins une grille rigide, les tubes 5 passent alors au travers des mailles de ladite grille rigide afin d'être maintenus. Afin de maintenir les tubes 5, le dispositif de maintien et d'écartement 7 comporte au moins deux grilles chacune placées à une extrémité desdits tubes 5. Ces grilles sont maintenues à distance l'une de l'autre au moyen de fixation ou blocage desdites grilles contre l'enceinte 3. Ces moyens sont par exemple un collage, un brasage ou alors la présence de butées sur la paroi interne de l'enceinte 3 de sorte que les grilles ne soient pas déplacées lors de la circulation du fluide au sein de la batterie thermique. According to a second embodiment illustrated in Figure 2, the holding device and spacing 7 comprises at least one rigid grid, the tubes 5 then pass through the mesh of said rigid grid to be maintained. In order to maintain the tubes 5, the holding and spacer device 7 comprises at least two grids each placed at one end of said tubes 5. These grids are kept at a distance from each other by means of fixing or locking said grids against the enclosure 3. These means are for example a bonding, soldering or the presence of stops on the inner wall of the enclosure 3 so that the grids are not displaced during the circulation of the fluid within the thermal battery.

Les grilles peuvent également être maintenues à distance les une des autres au moyen d'entretoises placées entre ces dernières.  The grids can also be kept at a distance from one another by means of spacers placed between them.

La présente invention concerne également le procédé de fabrication de la batterie thermique 1 comportant des tubes 5 de matériau à changement de phase encapsulé. Ce procédé comprend alors une étape de mise en place des tubes 5 de matériau à changement de phase encapsulé au sein d'un dispositif de maintien et d'écartement 7 poreux. The present invention also relates to the method of manufacturing the thermal battery 1 comprising tubes 5 of encapsulated phase change material. This method then comprises a step of placing the tubes 5 of encapsulated phase change material in a porous holding and spacer device 7.

Selon le premier mode de réalisation décrit ci-dessus, cette étape de mise en place des tubes 5 au sein du dispositif de maintien et d'écartement 7 poreux consiste en une mise en place desdits tubes 5 dans une mousse. According to the first embodiment described above, this step of placing the tubes 5 within the porous holding and spacer device 7 consists of placing said tubes 5 in a foam.

L'étape de mise en place des tubes 5 dans la mousse peut comporter une première étape d'installation de la mousse au sein de l'enceinte 3 de la batterie thermique 1 et une seconde étape d'insertion des tubes (5) au sein de ladite mousse.  The step of placing the tubes 5 in the foam may comprise a first step of installing the foam within the chamber 3 of the thermal battery 1 and a second step of insertion of the tubes (5) within of said foam.

A contrario, l'étape de mise en place des tubes 5 dans la mousse comporte une première étape d'installation des tubes 5 dans l'enceinte de la batterie thermique et une seconde étape d'installation de la mousse au sein de l'enceinte 3 de sorte à entourer lesdits tubes 5. Dans les deux cas de figures, l'installation de la mousse au sein de l'enceinte 3 peut être réalisée par injection et expansion de ladite mousse directement dans l'enceinte 3 ou alors par introduction d'une mousse préformée dans l'enceinte 3. In contrast, the step of placing the tubes 5 in the foam comprises a first step of installing the tubes 5 in the enclosure of the thermal battery and a second stage of installation of the foam within the enclosure 3 so as to surround said tubes 5. In both cases, the installation of the foam within the chamber 3 can be carried out by injecting and expanding said foam directly into the chamber 3 or by introducing a preformed foam into the chamber 3 .

Selon le second mode de réalisation décrit ci-dessus, l'étape de mise en place des tubes 5 au sein du dispositif de maintien et d'écartement 7 poreux consiste en une insertion desdits tubes 5 dans les mailles d'au moins une grille rigide. According to the second embodiment described above, the step of placing the tubes 5 inside the porous holding and spacer device 7 consists of inserting said tubes 5 into the meshes of at least one rigid grid .

Cette étape d'insertion des tubes 5 dans les mailles d'au moins une grille rigide peut être précédé d'une étape de mise en place de la au moins une grille rigide au sein de l'enceinte 3 de la batterie thermique 1. Les tubes 5 sont alors insérés dans les mailles d'au moins une grille à l'intérieur de l'enceinte 3.  This step of insertion of the tubes 5 into the meshes of at least one rigid grid may be preceded by a step of placing the at least one rigid grid within the enclosure 3 of the thermal battery 1. tubes 5 are then inserted into the meshes of at least one grid inside the chamber 3.

A contrario, l'étape d'insertion des tubes 5 dans les mailles d'au moins une grille rigide est réalisée en dehors de l'enceinte 3. Le procédé comporte alors une étape supplémentaire de mise en place de l'ensemble formé par lesdits tubes 5 et l'au moins une grille rigide au sein de l'enceinte 3 de la batterie thermique 1.  Conversely, the step of insertion of the tubes 5 in the meshes of at least one rigid grid is performed outside the chamber 3. The method then comprises an additional step of setting up the assembly formed by said tubes 5 and the at least one rigid grid within the enclosure 3 of the thermal battery 1.

L'utilisation d'un tel dispositif de maintien et d'écartement 7 poreux permet une grande adaptabilité du procédé de fabrication. En effet, il est aisé de modifier le nombre de tube 5 ou leur espacement au sein de la batterie thermique 1 sans pour autant modifier les étapes du procédé. Pour modifier le nombre de tube 5 ou leur espacement il suffit alors d'augmenter ou de diminuer la taille des mailes des grilles ou alors modifier la préformation de la mousse lorsque cette dernier est préformée. Dans le cas ou elle est directement injectée autour des tubes 5, la modification du nombre de tubes 5 ou de leur espacement n'a même aucune incidence. Ainsi, on voit bien que la batterie thermique 1 selon l'invention et son procédé de fabrication permette un bon maintien des tubes 5 de matériau à changement de phase ainsi qu'une grande adaptabilité dans le procédé de fabrication. The use of such a holding device and spacer 7 porous allows great adaptability of the manufacturing process. Indeed, it is easy to change the number of tubes 5 or their spacing within the thermal battery 1 without changing the process steps. To modify the number of tubes 5 or their spacing then it is sufficient to increase or decrease the size of mailes grids or modify the preformation of the foam when the latter is preformed. In the case where it is directly injected around the tubes 5, changing the number of tubes 5 or their spacing does not even affect. Thus, it is clear that the thermal battery 1 according to the invention and its manufacturing method allows a good maintenance of the tubes 5 of phase change material and a great adaptability in the manufacturing process.

Claims

REVENDICATIONS 1. Batterie thermique (1) comportant une enceinte (3) comprenant une entrée et une sortie de fluide et comprenant en son sein des tubes (5) de matériau à changement de phase encapsulé, caractérisée en ce que ladite batterie thermique (1) comporte en outre un dispositif de maintien et d'écartement (7) des tubes (5) de matériau à changement de phase encapsulé, ledit dispositif de maintien et d'écartement (7) étant disposé entre les tubes (5) eux même et entre les tubes (5) et l'enceinte (3), ledit dispositif de maintien et d'écartement (7) étant poreux. 1. Thermal battery (1) comprising an enclosure (3) comprising an inlet and a fluid outlet and comprising within it tubes (5) of encapsulated phase-change material, characterized in that said thermal battery (1) comprises in addition a device for holding and spacing (7) the tubes (5) of encapsulated phase change material, said holding and spacer device (7) being arranged between the tubes (5) themselves and between the tubes (5) and the enclosure (3), said holding and spacer device (7) being porous. 2. Batterie thermique (1) selon la revendication 1, caractérisée en ce que le dispositif de maintien et d'écartement (7) comporte au moins une grille rigide, les tubes (5) passant au travers des mailles de ladite grille. 2. Thermal battery (1) according to claim 1, characterized in that the holding device and spacer (7) comprises at least one rigid grid, the tubes (5) passing through the mesh of said grid. 3. Batterie thermique (1) selon la revendication précédente, caractérisée en ce que le dispositif de maintien et d'écartement (7) comporte au moins deux grilles et que lesdites grilles sont maintenues à distance l'une de l'autre au moyen de fixation ou blocage desdites grilles contre l'enceinte (3). 3. Thermal battery (1) according to the preceding claim, characterized in that the holding device and spacing (7) comprises at least two grids and said grids are kept at a distance from each other by means of fixing or blocking said grids against the enclosure (3). 4. Batterie thermique (1) selon la revendication 2, caractérisée en ce que le dispositif de maintien et d'écartement (7) comporte au moins deux grilles et que lesdites grilles sont maintenues à distance l'une de l'autre au moyen d'entretoises. 4. Thermal battery (1) according to claim 2, characterized in that the holding device and spacing (7) comprises at least two grids and said grids are kept at a distance from each other by means of spacers. 5. Batterie thermique (1) selon la revendication 1, caractérisée en ce que le dispositif de maintien et d'écartement (7) comporte une mousse placée au sein de l'enceinte et entourant les tubes (5). 1 5. Thermal battery (1) according to claim 1, characterized in that the holding device and spacer (7) comprises a foam placed within the enclosure and surrounding the tubes (5). 1 6. Batterie thermique (1) selon la revendication précédente, caractérisée en ce que la mousse a une porosité comprise entre 50 à 95%.  6. Thermal battery (1) according to the preceding claim, characterized in that the foam has a porosity of between 50 to 95%. 7. Procédé de fabrication d'une batterie thermique (1) comportant une enceinte (3) comprenant une entrée et une sortie de fluide, et des tubes (5) de matériau à changement de phase encapsulé, ledit procédé comprenant une étape de mise en place des tubes (5) de matériau à changement de phase encapsulé au sein d'un dispositif de maintien et d'écartement (7) poreux. 7. A method of manufacturing a thermal battery (1) comprising an enclosure (3) comprising an inlet and a fluid outlet, and tubes (5) encapsulated phase change material, said method comprising a step of setting placing tubes (5) of encapsulated phase change material in a porous holding and spacing device (7). 8. Procédé de fabrication selon la revendication précédente, caractérisé en ce que l'étape de mise en place des tubes (5) consiste en une insertion desdits tubes (5) dans les mailles d'au moins une grille rigide. 8. Manufacturing process according to the preceding claim, characterized in that the step of placing the tubes (5) consists of an insertion of said tubes (5) in the mesh of at least one rigid grid. 9. Procédé de fabrication selon la revendication précédente caractérisé en ce que l'étape d'insertion des tubes (5) dans les mailles d'au moins une grille rigide est précédé d'une étape de mise en place de la au moins une grille rigide au sein de l'enceinte (3) de la batterie thermique (1). 9. Manufacturing method according to the preceding claim characterized in that the step of inserting the tubes (5) in the mesh of at least one rigid grid is preceded by a step of setting up the at least one grid rigid within the enclosure (3) of the thermal battery (1). 10. Procédé de fabrication selon la revendication 8 caractérisé en ce que l'étape d'insertion des tubes (5) dans les mailles d'au moins une grille rigide est réalisée en dehors de l'enceinte (3) et que le procédé comporte une étape supplémentaire de mise en place de l'ensemble formé par lesdits tubes (5) et l'au moins une grille rigide au sein de l'enceinte (3) de la batterie thermique (1). 1 10. The manufacturing method according to claim 8 characterized in that the step of insertion of the tubes (5) in the mesh of at least one rigid grid is performed outside the enclosure (3) and that the method comprises an additional step of placing the assembly formed by said tubes (5) and the at least one rigid grid within the enclosure (3) of the thermal battery (1). 1 11. Procédé de fabrication selon la revendication 7, caractérisé en ce que l'étape de mise en place des tubes (5) consiste en une mise en place desdits tubes (5) dans une mousse.  11. The manufacturing method according to claim 7, characterized in that the step of placing the tubes (5) consists of placing said tubes (5) in a foam. 12. Procédé de fabrication selon la revendication précédente caractérisé en ce que l'étape de mise en place des tubes (5) dans une mousse comporte une première étape d'installation de la mousse au sein de l'enceinte (3) de la batterie thermique (1) et une seconde étape d'insertion des tubes (5) au sein de ladite mousse. 12. Manufacturing method according to the preceding claim characterized in that the step of placing the tubes (5) in a foam comprises a first step of installing the foam within the chamber (3) of the battery thermal (1) and a second step of insertion of the tubes (5) within said foam. 13. Procédé de fabrication selon la revendication 11 caractérisé en ce que l'étape de mise en place des tubes (5) dans une mousse comporte une première étape d'installation des tubes (5) dans l'enceinte de la batterie thermique et une seconde étape d'installation de la mousse au sein de l'enceinte (3) de sorte à entourer lesdits tubes (5). 13. The manufacturing method according to claim 11 characterized in that the step of placing the tubes (5) in a foam comprises a first step of installing the tubes (5) in the enclosure of the thermal battery and a second step of installing the foam within the enclosure (3) so as to surround said tubes (5).
EP16701760.7A 2015-01-26 2016-01-26 Thermal battery with encapsulated phase-change material and associated production method Withdrawn EP3250871A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1550580A FR3032029B1 (en) 2015-01-26 2015-01-26 THERMAL BATTERY WITH ENCAPSULATED PHASE CHANGE MATERIAL AND METHOD OF MANUFACTURING THE SAME.
PCT/EP2016/051595 WO2016120282A1 (en) 2015-01-26 2016-01-26 Thermal battery with encapsulated phase-change material and associated production method

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KR (1) KR20170110101A (en)
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WO (1) WO2016120282A1 (en)

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FR3032029B1 (en) 2017-01-27
CN107223197A (en) 2017-09-29
US20180017339A1 (en) 2018-01-18
KR20170110101A (en) 2017-10-10
FR3032029A1 (en) 2016-07-29
US10436523B2 (en) 2019-10-08

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