• 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 heat exchange plate (1) for thermal management of battery packs (100), comprising first (3a) and second (3b) plates, at least one of the first (3a) and second (3b) plate comprising at least one channel (30), the first (3a) and second (3b) plates being contiguous so that said channel (30) partially delimits at least one conduit (31) of a circulation circuit of a fluid coolant, said heat exchange plate (1) further comprising at least one composite phase change material (9).
    公开号:FR3024770A1
    申请号:FR1457755
    申请日:2014-08-11
    公开日:2016-02-12
    发明作者:Kamel Azzouz；Francois Fernand；Issaka Traore；Julien Tissot；Xavier Marchadier
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    [0001] 1 Heat exchange plate for battery pack thermal management Description. The present invention relates to the thermal regulation of the battery and more particularly the heat exchange plates for the thermal management of battery packs, particularly in the automotive field.
    [0002] The thermal regulation of batteries and battery packs, particularly in the automotive field and even more particularly electric and hybrid vehicles, is an important point because if the batteries are subjected to temperatures that are too cold, their autonomy can decrease sharply and if they are subject to at too high temperatures, there is a risk of thermal runaway up to the destruction of the battery. In order to regulate the temperature of the batteries, it is known to add a device for regulating the temperature of the battery module. These devices generally use circulating heat transfer fluids, for example by means of a pump, in a duct circuit, said duct circuit passing in particular under or inside a heat exchange plate in direct contact with the batteries. . The heat transfer fluids can thus absorb heat emitted by the battery or batteries to cool them and evacuate this heat at one or more heat exchangers such as a radiator or a refrigerant. The heat transfer fluids may also, if necessary, provide heat to heat said batteries, for example if they are connected to an electrical resistance or heating by Positive Temperature Coefficient (PTC).
    [0003] 3024770 2 The heat transfer fluids generally used are ambient air or liquids such as water. Liquids are better heat conductors than gases, it is a solution that is preferred because more effective.
    [0004] In general, the heat exchange plates in direct contact with the cells are placed under the batteries, said batteries thus resting on said heat exchange plates. The heat exchange plates are generally made of metal and are composed of two metal plates stamped and brazed against each other so as to form one or more circuits of heat transfer fluid circulation conduits between an inlet and an outlet of fluid. However, between the inlet and the fluid outlet a temperature differential is created which makes the said temperature at the battery level inhomogeneous, which can hinder the management of the temperature of the battery and its maintenance at an optimum operating temperature. . One of the aims of the invention is to propose a heat exchange plate at least partially overcoming the drawbacks of the prior art and to propose a heat exchange plate with increased temperature homogeneity. The present invention therefore relates to a thermal exchange plate for battery pack thermal management, comprising first and second plates, at least one of the first and second plates having at least one channel, the first and second plates being contiguous so that said channel partially delimits at least one conduit of a circulation circuit of a coolant, said heat exchange plate further comprising at least one composite phase change material.
    [0005] This composite phase-change material makes it possible to increase the thermal inertia of the heat exchange plate and also makes it possible to improve the thermal homogeneity between the inlet and the fluid outlet.
    [0006] According to one aspect of the invention, at least one composite phase change material is partially located in at least one housing in at least one of the first and second plates. According to another aspect of the invention, the composite phase change material is placed on at least one outer face of said heat exchange plate. According to another aspect of the invention, the composite phase change material is substantially complementary in shape to a dedicated housing and formed by stamping said heat exchange plate so that once the composite phase change material housed in said dedicated housing, the outer surface of the plate is approximately flat. The fact of having a flat surface increases the contact surface and facilitates heat exchange.
    [0007] According to another aspect of the invention, the heat exchange plate further comprises an additional heating device of the battery pack. This additional heating device is particularly useful for heating the battery pack so that it maintains itself or reaches its optimum operating temperature more quickly. According to another aspect of the invention, the additional heating device of the battery pack is a screen-printed electrical resistance device.
    [0008] According to another aspect of the invention, the composite phase-change material is placed between one of the first or second plates and the additional heater of the battery pack.
    [0009] According to another aspect of the invention, one of the first and second plates is intended to come into contact with the battery pack and the other of the first and second plates has on its outer surface a coating. insulating. This insulating coating makes it possible to improve heat exchange between the heat exchange plate and the battery pack by limiting heat exchange on the opposite face. According to another aspect of the invention, the insulating coating is a plate of insulating material contiguous to the outer face of the plate not being in contact with the battery pack. According to another aspect of the invention, the insulating coating is an insulating surface treatment applied to the outer face of the plate not being in contact with the battery pack.
    [0010] The present invention also relates to a battery pack comprising at least one heat exchange plate as previously described. The present invention also relates to a set of battery packs 25 comprising at least one heat exchange plate as described above, said at least one heat exchange plate being in contact with a first battery pack on a first face and in contact with a second battery pack on a second side. Here, both sides of the heat exchange plate are used to regulate the battery packs, thus limiting losses.
    [0011] Other features 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 perspective 10 shows an exploded schematic exploded view of a heat exchange plate according to a second embodiment, - Figure 3 shows a representation of a heat exchange plate according to a first embodiment; schematic exploded perspective of a heat exchange plate according to a third embodiment, - Figure 4 shows a schematic perspective exploded view of a heat exchange plate according to a fourth embodiment, - Figure 5 shows a schematic representation in perspective 20 of a battery pack, - Figure 6 shows a schematic representation in pers An exploded view of a heat exchange plate according to a fifth embodiment. FIG. 7 shows a diagrammatic sectional representation of a heat exchange plate according to a sixth embodiment. FIG. schematic perspective of a set of battery packs. The identical elements in the different figures bear the same references.
    [0012] As shown in FIGS. 1 to 4 and FIG. 6, the heat exchange plate 1 for the thermal management of battery packs 100 comprises a first 3a and a second plate 3b. At least one of the first 3a or second 3b plate having channels 30 (shown in Figure 7). The first 3a and second 3b plates may in particular be made of metal, the channels 30 may then be made by stamping. The first 3a and second 3b plates are contiguous so that the channels 30 delimit a conduit 31 of a circulation circuit of a heat transfer fluid. Preferably the conduit is U-shaped and extends between an inlet and a heat transfer fluid outlet respectively formed by connection pipes. This connection can in particular be achieved by brazing when the plates 3a, 3b are metallic. The contact zones then form brazing zones 32 (see FIG. 7). The heat exchange plate 1 may also comprise holding elements 13 (see FIGS. 4 and 2) for fixing said exchange plate to the battery pack or to the battery. The heat exchange plate 1 may further comprise a seal 7 (see Figures 1 and 3) placed between the first 3a and the second plate 3b to ensure sealing between them.
    [0013] By battery pack 100 is meant a set of cells 110 electrically connected to each other and forming said battery pack 100 as illustrated in FIG. 5, or a single large battery. The heat exchange plate 1 further comprises at least one composite phase-change material 9. This composite phase-change material 9 makes it possible to increase the thermal inertia of the heat exchange plate 1 and also makes it possible to to improve the thermal homogeneity between the inlet and the fluid outlet 5. In fact, the temperature difference between the inlet and the outlet of fluid in operation goes from 1.22 ° C. for a heat exchange plate without material With a composite phase change 9 at 0.67 ° C. for a heat exchange plate 1 with a composite phase change material 9, this allows a better thermal management of the battery pack loo. The composite phase change material 9 is more particularly composed of a phase change material integrated in a matrix. The phase-change material may be chosen, for example, from materials with organic phase change, inorganic phase or vegetable origin, having a phase change temperature of between 20 and 40 ° C. The matrix may for its part be a polymer matrix or 10 expanded graphite. At least one composite phase change material 9 may be partially placed in at least one housing 11 located in at least one of the first 3a and second 3b plates as illustrated in FIGS. 1 and 3. The housing 11 may be placed within the channels 3o or so between them. At least one composite phase change material 9 may further be placed on at least one outer face of the heat exchange plate 1, as illustrated in FIGS. 2, 4, 6 and 7. These phase change materials composite 9 can be placed in specific housings on an outer face of the heat exchange plate. As shown in FIG. 7, they may be of substantially complementary shape to a dedicated housing and formed by swaging of said heat exchange plate 1 so that once the composite phase change material 9 is housed in said dedicated housing , the outer surface of the plate is approximately flat which improves the contact area with the battery pack loo.
    [0014] The heat exchange plate 1 can be placed in contact with a single battery pack 100 as shown in FIG. 5. It can, on the other hand, be in contact with a first battery pack 100 on a first of its in the latter case, the two faces of the heat exchange plate 1 are used to regulate the battery packs 100, thus limiting the losses.
    [0015] As shown in FIGS. 3 and 4, the heat exchange plate 1 may comprise an insulating coating 15 on the face of one of the first 3a or second 3b plates not coming into contact with the battery pack 10o. This insulating coating 15 makes it possible to improve the heat exchange between the heat exchange plate 1 and the battery pack 100 by limiting heat exchange on the opposite face. The insulating coating 15 may be an insulating surface treatment applied to the outer face of the plate not in contact with the battery pack 100, or else a plate of insulating material contiguous to the outside face of the plate not being in contact with the battery pack loo. As shown in FIG. 6, the heat exchange plate 1 may comprise an additional heating device 17 of the battery pack 10o. This additional heater 17 is particularly useful for heating the battery pack loo so that it will maintain itself or reach its optimum operating temperature more quickly. This additional heating device 17 may for example be a screen-printed electrical resistance device. A composite phase change material 9 may be placed between one of the first 3a or second 3b 25 plates and the additional heater 17 of the battery pack 100, as shown in Figure 6. However, it is quite possible to imagine a heat exchange plate 1 where the additional heating device 17 is integrated between the first 3a and the second plate 3b.
    [0016] Thus, it is clear that the presence of composite phase change material 9 within the heat exchange plate allows better management of the temperature of the battery pack. 5
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Heat exchange plate (1) for thermal management of battery packs (100), comprising first (3a) and second (3b) plates, at least one of the first (3a) and second (3b) plates having at least one channel (30), the first (3a) and second (3b) plates being contiguous so that said channel (30) delimits in part at least one duct (31) of a circulation circuit of a coolant, characterized in said heat exchange plate (i) further comprises at least one composite phase change material (9). 10
    [0002]
    2. Heat exchange plate (i) according to claim 1, characterized in that at least one composite phase change material (9) is partly placed in at least one housing (ii) located in at least one one of the first (3a) and second (3b) plates. 15
    [0003]
    3. heat exchange plate (i) according to claim 1, characterized in that the composite phase change material (9) is placed on at least one outer face of said heat exchange plate (i). 20
    [0004]
    4. Heat exchange plate (i) according to the preceding claim, characterized in that the composite phase change material (9) is of substantially complementary shape to a dedicated housing and formed by stamping said heat exchange plate ( i) so that once the composite phase change material (9) accommodated in said dedicated housing, the outer surface of the plate is approximately flat.
    [0005]
    5. heat exchange plate (i) according to one of the preceding claims, characterized in that said heat exchange plate (i) 3024770 11 further comprises an additional heating device (17) battery pack (loo) .
    [0006]
    6. heat exchange plate (i) according to the preceding claim, 5 characterized in that the additional heating device (17) battery pack (ioo) is a screen-printed electrical resistance device.
    [0007]
    7. Heat exchange plate (i) according to one of claims 5 or 6, characterized in that the composite phase change material (9) is placed between one of the first (3a) or second (3b) plates and the additional heating device (17) of the battery pack (ioo).
    [0008]
    8. heat exchange plate (i) according to one of the preceding claims, characterized in that one of between the first (3a) and second 15 (3b) plates is intended to come into contact with the battery pack ( ioo) and that the other of the first (3a) and second (3b) plates has on its outer face an insulating coating (15).
    [0009]
    9. heat exchange plate (i) according to claim 8, characterized in that the insulating coating (15) is a plate of insulating material contiguous to the outer face of the plate not in contact with the battery pack ( ioo).
    [0010]
    10. heat exchange plate (i) according to claim 8, characterized in that the insulating coating (15) is an insulating surface treatment applied to the outer face of the plate not in contact with the battery pack ( ioo). 3024770 12 he. Battery pack (100) characterized in that it comprises at least one heat exchange plate (1) according to one of claims 1 to 10. 12. Set of battery packs (100) comprising at least one heat exchange plate ( 1) according to one of claims 1 to 7, characterized in that said at least one heat exchange plate (1) is in contact with a first battery pack (100) on a first face and in contact with a second battery pack ( 100) on a second side.
    类似技术:
    公开号 | 公开日 | 专利标题
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    FR2977375A1|2013-01-04|THERMO ELECTRIC MODULE AND DEVICE, ESPECIALLY FOR GENERATING AN ELECTRICAL CURRENT IN A MOTOR VEHICLE
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    FR3030125A1|2016-06-17|BATTERY SUPPORT AND ASSOCIATED VEHICLE ANTENNA
    FR3022075A1|2015-12-11|ELEMENTS, MODULE AND THERMO-ELECTRIC DEVICE, PARTICULARLY FOR GENERATING AN ELECTRICAL CURRENT IN A MOTOR VEHICLE
    同族专利:
    公开号 | 公开日
    FR3024770B1|2016-09-02|
    JP2016040770A|2016-03-24|
    EP2993435B1|2017-08-16|
    EP2993435A1|2016-03-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1271085A2|2001-06-23|2003-01-02|Behr GmbH & Co.|Device for cooling vehicle equipment, more particularly battery or fuel cell|
    WO2012045174A1|2010-10-04|2012-04-12|Dana Canada Corporation|Conformal fluid-cooled heat exchanger for battery|
    WO2013057952A1|2011-10-21|2013-04-25|株式会社ニフコ|Battery heat exchanger|FR3048496A1|2016-03-01|2017-09-08|Valeo Systemes Thermiques|HEAT EXCHANGER WITH FLEXIBLE WALL FOR THE THERMAL MANAGEMENT OF AN ELECTRIC BATTERY|
    CN105825783B|2016-04-29|2019-12-27|Oppo广东移动通信有限公司|Display screen support and terminal|
    FR3052246B1|2016-06-06|2019-05-10|Valeo Systemes Thermiques|THERMAL EXCHANGER HAVING MEANS FOR DAMPING TEMPERATURE VARIATIONS|
    KR102208720B1|2017-01-05|2021-01-28|주식회사 엘지화학|Battery Heat Sink for Cooling by Phase Change Materials and Method thereof|
    FR3061764B1|2017-01-06|2020-01-24|Valeo Systemes Thermiques|HEAT EXCHANGER WITH TWO ROWS OF TUBES FOR THERMAL REGULATION OF A BATTERY OF A MOTOR VEHICLE|
    FR3063137B1|2017-02-23|2021-05-21|Valeo Systemes Thermiques|HEAT EXCHANGER AND THERMAL REGULATION DEVICE WITH AT LEAST ONE ELECTRIC ENERGY STORAGE ELEMENT|
    KR101926341B1|2017-04-13|2019-03-07|유한회사 이원전력|Battery management system for photovoltaic power generating apparatus|
    FR3075471B1|2017-12-14|2019-11-08|Valeo Systemes Thermiques|DEVICE FOR CONTROLLING THE TEMPERATURE OF A BATTERY USING A DIELECTRIC FLUID AND BATTERY PACK COMPRISING SUCH A DEVICE|
    FR3082296B1|2018-06-07|2020-05-15|Valeo Systemes Thermiques|DEVICE FOR THERMAL REGULATION OF ELECTRIC ENERGY STORAGE CELLS OF A LARGE AREA BATTERY PACK|
    FR3092392B1|2019-02-06|2021-01-15|Psa Automobiles Sa|cooler for a battery of a motor vehicle.|
    FR3084525B1|2019-02-14|2020-12-25|Hutchinson|ELECTRIC BATTERY THERMAL MANAGEMENT STRUCTURE|
    CN110350270A|2019-08-13|2019-10-18|深圳市维特欣达科技有限公司|The cooling heat-transfer device of plate type heating and the controllable temperature lithium battery group using the device|
    WO2021189250A1|2020-03-24|2021-09-30|东莞新能安科技有限公司|Heat dissipation module and battery module|
    CN111613851A|2020-05-18|2020-09-01|瑞浦能源有限公司|Battery pack heat exchange device|
    法律状态:
    2015-08-31| PLFP| Fee payment|Year of fee payment: 2 |
    2016-02-12| PLSC| Search report ready|Effective date: 20160212 |
    2016-08-31| PLFP| Fee payment|Year of fee payment: 3 |
    2017-08-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-08-30| PLFP| Fee payment|Year of fee payment: 5 |
    2019-08-30| PLFP| Fee payment|Year of fee payment: 6 |
    2020-08-31| PLFP| Fee payment|Year of fee payment: 7 |
    2021-08-31| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1457755A|FR3024770B1|2014-08-11|2014-08-11|THERMAL EXCHANGE PLATE FOR THERMAL MANAGEMENT OF BATTERY PACK|FR1457755A| FR3024770B1|2014-08-11|2014-08-11|THERMAL EXCHANGE PLATE FOR THERMAL MANAGEMENT OF BATTERY PACK|
    EP15178156.4A| EP2993435B1|2014-08-11|2015-07-23|Heat exchange plate for thermal management of a battery pack|
    JP2015158330A| JP2016040770A|2014-08-11|2015-08-10|Heat exchange plate for temperature management of battery pack|
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