• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a thermal battery (1) comprising a chamber comprising an inlet and a fluid outlet and comprising within it a phase-change material encapsulated in the form of at least one tube (3), at least one tube ( 3) being wound spirally within the enclosure.
    公开号:FR3032028A1
    申请号:FR1550579
    申请日:2015-01-26
    公开日:2016-07-29
    发明作者:Samuel Bry；Patrick Boisselle；Kamel Azzouz
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    [0001] 1 Thermal battery with encapsulated phase change material. 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 a chamber forming a tank inside which the phase-change material is placed, generally in encapsulated form. The performance of the thermal battery is thus dependent on the quantity of phase-change material that it can contain coupled with the requirement of circulation of the fluid within the tank with the lowest possible pressure drops. It is therefore an object of the present invention 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 a phase-change material 3032028 2 encapsulated in the form of at least one tube, at least one tube being wound in a spiral within the enclosure. Spirally winding at least one tube of phase-change material within the enclosure makes it possible to maximize the quantity of phase-change material within the thermal battery, thus improving its efficiency since the latter has a higher heat capacity.
    [0002] According to one aspect of the invention, the spiral winding of the tube is formed around a winding axis parallel to the flow of fluid flow within said thermal battery. In another aspect of the invention, the spiral winding of the tube has an empty central portion along the winding axis. According to another aspect of the invention, the thermal battery comprises longitudinal tubes of encapsulated phase change material, said longitudinal tubes being placed in the central part of the spiral winding of the tube. The longitudinal tubes thus fill the central part of the spiral winding and thus further increase the amount of phase change material contained within the thermal battery. According to another aspect of the invention, the thermal battery comprises spacers between the tubes so as to provide a fluid circulation space. According to another aspect of the invention, the spiral winding of the tube is made from a single tube. According to another aspect of the invention, the walls of the tube are made of plastics material. Other characteristics and advantages of the invention will appear more clearly on reading the following description, given by way of illustrative and nonlimiting example, and the appended drawings in which: FIG. 1 shows a diagrammatic representation in FIG. perspective of the arrangement of encapsulated phase change material tubes within a thermal battery according to a first embodiment, - Figure 2 shows a schematic perspective view of the arrangement of encapsulated phase change material tubes. in a thermal battery according to a second embodiment. In the different figures, the identical elements bear the same reference numbers. A thermal battery 1 generally comprises an enclosure (not shown), preferably thermally insulated, comprising an inlet and a fluid outlet. Inside the enclosure is placed a phase-change material encapsulated in the form of at least one tube 3. As shown in FIGS. 1 and 2, at least one of the tubes 3 is wound in a spiral and arranged within the enclosure. Spirally winding at least one tube 3 of phase-change material within the enclosure makes it possible to maximize the quantity of phase-change material within the thermal battery 1 and thus to improve its temperature. efficiency since the latter has a higher heat capacity. The spiral winding of this tube 3 is formed around a winding axis A which is parallel to the flow flow of fluid 5 (represented by arrows in FIGS. 1 and 2) within the thermal battery 3 of FIG. so that the fluid can flow perpendicularly to the spiral winding. The spiral winding inside the thermal battery 1 is preferably made from a single tube 3. This allows the number of extremities to be limited. Indeed, at each of its ends a tube 3 containing a phase change material comprises a weld or plug to encapsulate said phase change material. Limiting the number of tubes 3 and therefore the number of these ends reduces the risk of leakage of the phase change material. However, it is entirely possible to imagine, within the scope of the invention, a spiral winding composed of several tubes, or a stack of several spiral winding within the enclosure.
    [0003] The tube 3 within which the phase change material is encapsulated is preferably made of plastic material to enable this spiral winding.
    [0004] Because of the limited bending radius of the tube 3, the spiral winding comprises a central part 5 empty along the winding axis A. This central part can remain empty in order to ensure good circulation of the fluid as illustrated. In FIG. 1, for example, for a plastic tube 3 such as polycarbonate, a minimum bending radius is of the order of 25 mm, without said tube 3 bending. The empty central portion 5 will then have a diameter of the order of 50 mm. In contrast, and as shown in FIG. 2, this central portion 5 can be filled by longitudinal tubes 7 of encapsulated phase change material. These longitudinal tubes 7 are then placed parallel to the winding axis A. These longitudinal tubes 7 thus fill the central portion 5 of the spiral winding and thus further increase the amount of phase change material contained within the 10 thermal battery. So that the fluid can circulate between the turns of the spiral winding of the tube 3 and between the longitudinal tubes 7 with limited pressure losses, the tubes 3 and 7 may comprise spacers so as to provide a circulation space of fluids. Thus, it can clearly be seen that the thermal battery 1 is optimized because of the particular spiral arrangement of at least one tube 3 of phase change material which makes it possible to maximize the quantity of phase change material.
    权利要求:
    Claims (7)
    [0001]
    REVENDICATIONS1. Thermal battery (1) comprising an enclosure comprising an inlet and a fluid outlet and comprising within it a phase-change material encapsulated in the form of at least one tube (3), characterized in that at least one tube ( 3) is wound spirally within the enclosure.
    [0002]
    2. Thermal battery (1) according to the preceding claim, characterized in that the spiral winding of the tube (3) is formed around a winding axis (A) parallel to the flow of fluid flow within said thermal battery (1).
    [0003]
    3. Thermal battery (1) according to the preceding claim, characterized in that the spiral winding of the tube (3) comprises a central portion (5) empty along the winding axis (A).
    [0004]
    4. Thermal battery (1) according to the preceding claim, characterized in that it comprises longitudinal tubes (7) encapsulated phase change material, said longitudinal tubes being placed in the central portion (5) of the winding spiral tube (3).
    [0005]
    5. Thermal battery (1) according to one of the preceding claims, characterized in that it comprises spacers between the tubes (3; 7) so as to provide a fluid circulation space.
    [0006]
    6. Thermal battery (1) according to one of the preceding claims, characterized in that the spiral winding of the tube (3) is made from a single tube (3). 3032028 7
    [0007]
    7. Thermal battery (1) according to one of the preceding claims, characterized in that the walls of the tube (3) are made of plastic.
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    同族专利:
    公开号 | 公开日
    FR3032028B1|2019-05-17|
    CN107407526A|2017-11-28|
    US20170370655A1|2017-12-28|
    WO2016120280A1|2016-08-04|
    EP3250874B1|2020-12-16|
    KR20170107544A|2017-09-25|
    EP3250874A1|2017-12-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0330312A2|1988-01-28|1989-08-30|Baltimore Aircoil Company, Inc.|Thermal storage method and apparatus|
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    DE102013213823A1|2013-07-15|2015-01-15|OPTIMASOL GmbH & Co. KG|Energy storage system with an ice storage|WO2019133461A1|2017-12-29|2019-07-04|E. I. Du Pont De Nemours And Company|Composition and methods for a heat storage capacity device for thermal management of fluids|AT251164B|1963-08-02|1966-12-27|Nikex Nehezipari Kulkere|Regenerative heat exchanger|
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    US8872022B2|2012-07-18|2014-10-28|Elwha Llc|Phase-change cooling of subterranean power lines|
    US20160298910A1|2013-12-05|2016-10-13|Gennady ZISKIND|Thermal energy storage device|FR3074280B1|2017-11-28|2020-05-15|Valeo Systemes Thermiques|THERMAL DEVICE WITH STORAGE CAPACITY FOR VEHICLE|
    CN108878917B|2018-06-28|2020-10-09|贵州梅岭电源有限公司|Slow-release heating device for thermal battery|
    法律状态:
    2016-02-01| PLFP| Fee payment|Year of fee payment: 2 |
    2016-07-29| PLSC| Publication of the preliminary search report|Effective date: 20160729 |
    2017-01-31| PLFP| Fee payment|Year of fee payment: 3 |
    2018-01-31| PLFP| Fee payment|Year of fee payment: 4 |
    2020-01-31| PLFP| Fee payment|Year of fee payment: 6 |
    2021-01-28| PLFP| Fee payment|Year of fee payment: 7 |
    2022-01-31| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1550579|2015-01-26|
    FR1550579A|FR3032028B1|2015-01-26|2015-01-26|THERMAL BATTERY HAVING AN ENCAPSULATED PHASE CHANGE MATERIAL.|FR1550579A| FR3032028B1|2015-01-26|2015-01-26|THERMAL BATTERY HAVING AN ENCAPSULATED PHASE CHANGE MATERIAL.|
    KR1020177023753A| KR20170107544A|2015-01-26|2016-01-26|Thermocouple with encapsulated phase change material|
    US15/546,065| US20170370655A1|2015-01-26|2016-01-26|Thermal battery with encapsulated phase-change material|
    PCT/EP2016/051593| WO2016120280A1|2015-01-26|2016-01-26|Thermal battery with encapsulated phase-change material|
    CN201680007205.XA| CN107407526A|2015-01-26|2016-01-26|The thermal cell of phase-change material with encapsulation|
    EP16701532.0A| EP3250874B1|2015-01-26|2016-01-26|Thermal battery with encapsulated phase-change material|
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