• 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:
    Battery module (4) having chambers (16) of a first type, a chamber (20) of a second type and a chamber (22) of a third type. The chambers (16) of the first type house a battery unit and the chamber (20) of the second type houses a switching electronics (18). The chamber (22) of the third located between a chamber (16) of the first type and the chamber (20) of the second type, is decomposed into a first and a second sub-chamber (21, 23), at least one of which comprises a cooling installation. The invention also relates to a direct battery converter and a direct battery inverter with such a battery module.
    公开号:FR3018000A1
    申请号:FR1551190
    申请日:2015-02-13
    公开日:2015-08-28
    发明作者:Stefan Baumann；Johannes Federle；Lisa Lorenz；Manfred Jaeger
    申请人:Robert Bosch GmbH；
    IPC主号:
    专利说明:

    [0001] Field of the Invention The present invention relates to a battery module comprising chambers of a first type, a chamber of a second type and a chamber of a third type, at least one of the chambers of the first type housing a battery unit and the second type chamber housing a switching electronics, the chamber of the third type being located between a chamber of the first type and the second type of chamber. The invention also relates to a direct battery converter and a direct battery inverter equipped with such battery modules. State of the art DE 10 2010 023 049 A1 shows a battery system in the form of a toy building system comprising at least two battery units each having a switching unit and a clamping diagnostic unit. , made as building toy modules on the side of the drum units. The switching and diagnostic units are connected to a main battery control unit for the purpose of enabling a respective battery unit to be cut for diagnosis or maintenance intervention. DE 20 2011 003 345 Ul, shows an energy accumulator unit for supplying electrical energy to a user of electrical energy; this unit has a coupling range and a power transmission range. The coupling range enables the energy storage unit to be connected to a second, substantially identical, identical energy storage unit; the energy transmission range allows the passage of energy essentially from one of the first energy storage units to the user.
    [0002] DE 10 2010 019 298 A 1 shows a lithium-ion battery for electrically powered vehicles with a power supply unit and an energy store for maximum loads. The power unit allows the electric motor to operate in a basic load range while the maximum load energy accumulator allows the electric motor to operate within a maximum load range. DESCRIPTION AND ADVANTAGES OF THE INVENTION The subject of the present invention is a battery module comprising chambers of a first type, a chamber of a second type and a chamber of a third type, at least one of the chambers of the first type housing a battery unit and the second type chamber housing a switching electronics, the chamber of the third type being located between a chamber of the first type and the chamber of the second type, this module being characterized in that the chamber of the third type type is decomposed into a first and a second sub-chamber and the first and / or second sub-chamber comprises a cooling installation. Advantageously, the decomposable chamber of the third type is between the chambers of the first type receiving the battery units and the chamber of the second type receiving the switching electronics. Thanks to the possibility of decomposing the chamber of the third type, it is possible, in case of repair, to exchange only the battery units with a sub-chamber or only the switching electronics with a sub-chamber. Preferably, the housing of the battery module is composed of two parts, a first part with the chambers of the first type receiving the battery cells and a second part with the chambers of the second type receiving the electronics. The interface of the two parts comprises two sub-chambers assembled to form the chamber of the third type. This makes it possible to manufacture the two housing parts in different production plants, which is advantageous for separate manufacture and assembly of the battery units and the switching electronics. In case of fault of the battery unit or the switching electronics, it is advantageous to replace only the corresponding half of the housing. According to the invention, at least one sub-chamber comprises a cooling installation. The cooling installation or refrigeration plant of the first sub-chamber advantageously allows the battery unit housed in the chamber of the first type to be cooled. The design of the cooling system depends on the thermal needs of the battery and the pressure drop to be respected.
    [0003] The cooling system or refrigeration plant of the first sub-chamber is designed to operate the battery units in a certain temperature window, to have optimum power, minimum aging and safe operation, especially during the months of summer and winter months. It allows to evacuate the heat generated by the operation of the battery units. Advantageously, no additional component is required to adjust the temperature of the battery cells, for example in the form of an aluminum cooling plate, welded because this function is provided by the first sub-chamber.
    [0004] The cooling system in the second sub-chamber preferably cools the switching electronics housed in the chamber of the second type. The cooling installation or the cooling installations (or refrigerating installations) thus ensure the thermal insulation of the switching electronics with respect to the battery units, which makes it possible to keep the battery units at the optimum temperature for their operation. According to another characteristic, at least one of the sub-chambers is free. A free sub-chamber, in addition to the advantage of compact modular design, provides the thermal insulation function of the switching electronics with respect to the battery units. The empty sub-chamber prevents the direct dissipation of heat from the switching electronics to the battery cells. In a particularly preferred manner, both the first and second chambers comprise a cooling installation so that the chamber of the third type, once assembled, allows active cooling of the battery units and the switching electronics. . Alternatively, the first and second sub-chambers may each comprise half a cooling plate which are assembled to thereby form the cooling plate with preferably a seal.
    [0005] The housing has a multiple functionality namely it ensures the mechanical stability, the protection vis-à-vis the environment, the evacuation of the heat released by the battery units and the thermal insulation of the switching electronics by compared to the battery units. This housing has the advantage of not making additional thermal bridge to the existing interfaces between the external radiator and the housing, which optimizes the evacuation of the heat released by the battery units or the switching electronics to the external radiator. the refrigerating agent. The large thermal mass of the housing advantageously serves as a radiator. This makes it possible to compensate for non-homogeneous local heat sources, for example by adding additional heat from the electronic components and also to guarantee a homogeneous distribution of the temperature in the cells of the battery module. Suitable cooling plants include, for example, a refrigerant circulating in the sub-chamber and the channels in the form of meandering tubes. The cooling is done for example using a mixture of water and glycol. The refrigerant circulates in the cooling channels advantageously connected by thermal conduction to the battery units and / or the switching electronics. Thus suitably, the sub-chamber has an inlet and an outlet for the inlet and the outlet of the coolant. Suitable cooling plants include, for example, fans that discharge hot air from the battery units and / or the switching electronics and at the same time provide the cooler air supply. It is thus expected that the sub-chamber has walls with perforations, ventilation or ventilation grilles. According to the embodiment, at least one side wall of the chambers of the first and / or second type comprises perforations and / or ventilation holes and / or a ventilation grille and / or ventilation vanes. The side wall of the chamber of the first and / or second type is that which delimits the sub-chamber equipped with the fan. The orifices allow the fan air stream to supply the battery units 35 and / or the switching electronics particularly efficiently.
    [0006] Suitable cooling installations include, for example, heat pipes. A heat pipe is a tube whose ends are closed and which contains a capillary material between the ends. The heat pipe is filled with a liquid that can vaporize for example with water. It reigns in the heat pipe a weak pressure so that the liquid is in a state of equilibrium between a liquid state and a gaseous state and thus in the hottest part of the heat pipe the liquid vaporizes to condense in the segment more cold. This allows a very efficient heat transport. One end of the heat pipe is in contact with a chamber of the first or second type housing the battery units and / or the switching electronics and the other end of the heat sink is in contact with a heat sink for example with a fan that can also be in a sub-chamber. It is thus expected that the sub-chamber has passages for the heat pipe. The heat pipe terminates at a wall of the sub-chamber in contact with the switching electronics and the battery units, this wall itself being in contact with a heat sink. Alternatively, at least one wall of the sub-chamber is also equipped with a temperature equalizing plate. This temperature equalization plate makes it possible to evacuate the heat from a chamber of the first or second type housing the battery units and / or the switching electronics to the sub-chamber which furthermore comprises, for example, a fan and perforated walls for the evacuation of air. Such a temperature balancing plate can also operate according to the principle of the heat pipe, that is to say comprise a capillary material and a heat transport medium so as to be in equilibrium between the liquid state and the gaseous state with a geometric plate shape and not a tube shape. The sub-chambers are preferably connected to the decomposed state by means of a connecting channel so that the refrigerating agent can pass from one sub-chamber to another. To prevent the refrigerant from escaping and in particular to protect the switching electronics, there is provided an appropriate seal for the connecting channel. It is envisaged that the refrigeration system will only be traversed by the refrigerating agent in one direction or that the latter will have one or more deviations from the volume flow rate, which notably contributes to further homogenisation of the temperature of the refrigerant. adjacent battery unit. The first and second sub-chambers are for example connected by a screw connection or an interlocking connection which realizes their removable connection. In case of repair, the link is easily removable which allows to exchange only the sub-chamber with a battery unit or only the sub-chamber with the switching electronics. According to one development, each chamber of the first type is designed to specifically receive a battery unit. However, preferably, the battery units housed in the chambers of the first type comprise several cells and these cells form a group or several connected groups. Preferably, the switching electronics ensure the selective connection of the battery units housed in the chambers of the first type. For this purpose, the battery system has a compact modular design that is advantageous for its maintenance and that allows the system to be scaled freely, since the switching electronics and the battery module controlled by the switching electronics are housed in a housing. common structure. In particular, in the case of a motor vehicle equipped with an acceleration assistance system or recovery of braking energy (also called BRS acceleration and recovery system) the construction is compact, advantageous to minimize congestion in the vehicle. Preferably, the chambers of the first, second and third types have dimensions optimally using the available volume. In particular, the dimensions of the first and second chambers and / or the third types are identical. Although a switching electronics may be provided which requires much less space than a battery unit, it is placed in a chamber having dimensions identical to those of the chambers receiving battery units. The third chamber that separates the first chambers from the second chamber fits well with the modular design if it has identical dimensions. In conclusion, there will be a parallelepipedic block comprising the battery units and the switching electronics separated therefrom. Several such parallelepiped blocks can be stacked, for example to constitute a direct battery converter. According to another development, the direct battery converter comprises at least one battery module and preferably several battery modules as those described above. According to another development, the direct battery inverter comprises such direct battery converters. Drawings The present invention will be described hereinafter in more detail with the aid of examples of battery modules shown in the accompanying drawings in which the same or like elements bear the same references. Thus: FIG. 1 is a diagram of a direct battery converter, FIG. 2 is a diagram of a direct battery inverter, FIG. 3 is a diagram of a battery module with its switching electronics, in the decomposed state, FIG. 4 is a diagram of a first embodiment of a battery module in the undecomposed state, FIG. 5 is a diagram of a second embodiment of a battery module. battery module in the undecomposed state, and Figure 6 is a perspective view of a chamber of a third type in the decomposed state.
    [0007] DESCRIPTION OF EMBODIMENTS In the present description, the terms "battery" and "battery system" are used for the usual terms "accumulator" or "accumulator system". The system described may be in particular a lithium-ion battery system used for driving electric vehicles and hybrid vehicles. FIG. 1 shows an embodiment of a direct battery converter (BDC Converter Direct Convertor) 10 having a set of battery modules 2. The set of battery modules 2 consists of several battery modules 4; each battery module 4 preferably has the same number of battery cells combined identically. The cells of the lithium-ion battery have, for example, a voltage range of between 2.8 volts and 4.2 volts. The poles 6 of the set of battery modules 2 may additionally constitute charge and cut-off installations 8, for example in the case where safety rules so require. However, such charging and disconnecting installations 8 are not essential because the coupling / decoupling of the battery modules 4 is done by a switching electronics not shown here, associated with the battery modules 4. It is however possible to connect or to cut battery modules 4 with respect to the set of battery modules 2. Fig. 2 shows an embodiment of a direct battery inverter (BDI), 12 which consists of several sets of battery modules 2. Each set of battery modules 2 comprises a plurality of battery modules 4, preferably each set of battery modules 2 has the same number of battery modules 4 and each battery module 4 preferably has the same number of modules. battery cells connected identically. The pole 6 of each set of battery modules 2 is connected to the corresponding pole 6 of the other set of battery modules 2 as indicated in line 5. The poles 6 of the battery module assemblies 2 may comprise charging and shutdown installations 8 for example if the safety rules so require. In operation as a direct battery inverter 12 there will be substantially sinusoidal voltage profiles with a phase shift which allows to supply an electric motor to provide the requested torque. The voltage is preferably such that the alternating current generated enables the electric motor to provide the required torque. FIG. 3 shows a battery module 4 in the decomposed state comprising four juxtaposed chambers 16, corresponding to a first type receiving unrepresented battery units. The arrangement of the chambers 16 of the first type bears the reference 14. The figure also shows a switching electronics 18 for connecting or cutting the battery module 4 with respect to a set of battery modules 2 like that described in FIGS. 2, for example to avoid over-charging the battery module 4. The switching electronics 18 are housed in a chamber 20 corresponding to a second type; this second type of chamber may be identical to that of the chambers 16 of the first type. The battery module 4 further comprises a chamber 22 of a third type located between a chamber 16 of the first type and the chamber 20 of the second type; the chamber 22 of the third type is decomposed into two sub-chambers 21, 23. At least one of the first and / or second sub-chambers 21, 23 comprises a cooling system 38, 44, 46, 48, 50 , 52, 58 (not shown) as will be described in connection with FIGS. 4 to 6.
    [0008] Chambers 16 of the first type are identically constructed, i.e. they have a uniform width, a uniform height and a uniform depth. The chamber 20 of the second type has a width 28 which is also identical to the width 24 of the chambers 16 of the first type. The first sub-chamber 21 has a first width 34 and the second sub-chamber 23 has a second width 36; these widths are chosen equal in the embodiment shown. The width 34 and width 36 of the two sub-chambers 21, 23 add up to give a width which is identical to the widths 28, 24 of the chambers 20, 16 of the second and the first type. The chambers 16, 22, 20 also have the same height 30 and the same depth 32 so that overall there is a modular design of homogeneous appearance. The battery module 4 comprising the different chambers 16, 22, 20 thus has the overall structure of a quadrilateral allowing simple stacking to obtain the set of battery modules 2 of the direct battery con- verter 10 or the direct inverter battery 12. Figure 4 shows the battery module 4 in the state decomposed with the chamber 22 of the third type corresponding to the first embodiment. The chamber 22 of the third type comprises a fan 38 for evacuating the heat generated by the switching electronics 18. In the exemplary embodiment shown, a side wall 42 of the chamber 20 of the second type which is adjacent to the chamber 22 of the the third type comprises a ventilation grid 44 to improve the heat exchange between the chambers 20, 22. On the opposite side of the chamber 20 of the second type, such ventilation grilles 44 may be provided to increase the evacuation. of the heat of the switching electronics 18.
    [0009] In one or more of the side walls not adjacent to the chambers 16 of the first type and not adjacent to the chamber 20 of the second type, the chamber 22 of the third type advantageously comprises perforations, ventilation grilles or ventilation holes making it possible to evacuate the air towards the outside by the fan 38 from the chambers 20, 22, 16. Figure 5 shows a battery module 4 with chambers 22 of the third type according to a second embodiment given by way of example. The second sub-chamber 23 has a plurality of pipelines 46 for conducting the heat generated by the switching electronics 18 of the second side wall 42 of the second type chamber 20 adjacent to the third type chamber 22 through the second sub-chamber. -chambre 23 to the first sub-chamber 21. The heat released will be discharged from the first sub-chamber 21 by the tilator 38 and one or more side walls of the chamber 22 of the third type comprise gates of ventilation, perforations or appropriate ventilation holes (not shown). Figure 6 shows the chamber 22 of the third type corresponding to another embodiment. The second sub-chamber 23 of the third type chamber 22 has an inlet 48 and an outlet 50 for the inlet and outlet of the refrigerant in the chamber 22 of the third type. The refrigerating agent is for example an aqueous solution of ethylene glycol or propylene glycol or any other available refrigerating agent. The interior of chamber 22 of the third type may include tubes for the circulation of the refrigerant. The side 54 of the second sub-chamber 23 facing the first sub-chamber 21 comprises connecting channels 52 for the passage of the refrigerant from one of the sub-chambers 21, 23 to the other sub-chamber 21, 23. The side 56 of the first sub-chamber 21 facing the second sub-chamber 23 has appropriate connections 58 for the connecting channels 52. The connections 58 and the connecting channels 52 are connected waterproof. The cooling installations 38, 44, 46, 48, 50, 52, 58 may be distributed in any manner between the sub-chambers 21, 23. 44, 46, NOMENCLATURE OF THE MAIN ELEMENTS 4 52, 58 23 6 8 10 12 14 16 18 20 22 38, 50, 21, 24 28 30 32 34 36 38 40 42 44 46 48 50 52 56 58 48, Battery Module Set Battery Module Power Line Assembly Pole of battery modules Installation of charge and disconnection Direct battery converter Direct battery switch Room arrangement of the first type Switching room Chamber of the second type Chamber of the third type Cooling installations Sub-chamber Width of the first type of chamber Width of the bedroom of the second type Uniform height of the rooms Uniform depth of the chambers Width of the first sub-chamber Width of the second sub-chamber Fan Side of the chamber of the second type Side wall of the chamber of the second type G ventilation tube Heat pipe Cooling agent inlet Refrigerant outlet Refrigerant connection channel Side of the first sub-chamber Connection for a connecting channel 35
    权利要求:
    Claims (10)
    [0001]
    CLAIMS 1 °) Battery module (4) comprising chambers (16) of a first type, a chamber (20) of a second type and a chamber (22) of a third type, - at least one of chambers (16) of the first type housing a battery unit and the chamber (20) of the second type housing a switching electronics (18), - the chamber (22) of the third type being located between a chamber (16) of the first type and the chamber (20) of the second type, characterized in that the chamber (22) of the third type is decomposed into a first and a second sub-chamber (21, 23) and the first and / or second sub-chamber (21, 23) comprise a cooling system (38, 44, 46, 48, 50, 52, 58).
    [0002]
    2) battery module (4) according to claim 1, characterized in that the cooling system (38, 44, 46, 48, 50, 52, 58) housed in the first sub-chamber (21) ensures the cooling of the battery unit housed in a chamber (16) of the first type.
    [0003]
    Battery module (4) according to Claim 1, characterized in that a cooling system (38, 44, 46, 48, 50, 52, 58) housed in the second sub-chamber (23) provides the cooling of the switching electronics (18) housed in the chamber (20) of the second type.
    [0004]
    4) battery module (4) according to claim 1, characterized in that the chamber (22) of the third type comprises cooling channels and / or at least one fan (38), a heat pipe (46), a grid ventilation (44), ventilation openings and / or ventilation fins.
    [0005]
    5 °) battery module (4) according to claim 1, characterized in that in the decomposed state, the sub-chambers (21, 23) are connected by at least one connecting channel (52) for the refrigerating agent can pass from one sub-chamber (21, 23) to the other sub-chamber (21, 23).
    [0006]
    Battery module (4) according to claim 1, characterized in that the first and second sub-chambers (21, 23) have a screw connection or a snap connection connecting them removably.
    [0007]
    7 °) battery module (4) according to claim 1, characterized in that the switching electronics (18) allows the selective connection of the battery units housed in the chambers (16) of the first type.
    [0008]
    8 °) battery module (4) according to claim 1, characterized in that the chambers (16, 20, 22) of the first, second and third types have identical dimensions (24, 26, 28, 30, 32 ).
    [0009]
    9 °) direct battery converter (10) comprising a battery module (4) according to any one of claims 1 to 8 comprising chambers (16) of a first type, a chamber (20) of a second type and a chamber (22) of a third type - at least one of the chambers (16) of the first type housing a battery unit and the chamber (20) of the second type housing a switching electronics (18) - the chamber (22) of the third type located between a chamber (16) of the first type and the chamber (20) of the second type, decomposing into a first and a second sub-chamber (21, 23) of which at least one one (21, 23) comprises a cooling system (38, 44, 46, 48, 50, 52, 58).
    [0010]
    10 °) direct battery inverter (12) having at least two direct battery converters according to claim 9.35
    类似技术:
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    同族专利:
    公开号 | 公开日
    KR20150099453A|2015-08-31|
    CN104868072A|2015-08-26|
    FR3018000B1|2021-02-19|
    KR102330410B1|2021-11-25|
    DE102014203130A1|2015-08-27|
    CN104868072B|2021-05-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2019020787A1|2017-07-28|2019-01-31|Blue Solutions|Transportable stationary shelter for storing electrical energy storage modules|JP4687015B2|2004-06-23|2011-05-25|トヨタ自動車株式会社|Power supply|
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    DE102013203192B4|2013-02-27|2016-10-20|Robert Bosch Gmbh|Battery module, battery direct converter with such a battery module and battery direct inverter with at least two direct battery converters|US10777863B2|2016-07-14|2020-09-15|Ge Energy Power Conversion Technology Ltd|Battery storage system with integrated inverter|
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    法律状态:
    2016-02-22| PLFP| Fee payment|Year of fee payment: 2 |
    2017-02-20| PLFP| Fee payment|Year of fee payment: 3 |
    2018-02-23| PLFP| Fee payment|Year of fee payment: 4 |
    2020-02-20| PLFP| Fee payment|Year of fee payment: 6 |
    2021-02-17| PLFP| Fee payment|Year of fee payment: 7 |
    2022-02-21| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102014203130.3A|DE102014203130A1|2014-02-21|2014-02-21|Connectable battery module|
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