• 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 invention relates to a method for equipping a housing (11) of a battery module (20) with a cell stack (12) on compressed battery cells (13). In order to reduce the installation effort and the load of the battery cells (13), it is provided that the cell stack (12) on battery cells (13) in a manipulation device (1) between at least two slide rails (3, 4) or groups of slide rails (3, 4), wherein at least one slide rail (3, 4) or a group of slide rails (3, 4) of the manipulation device (1) acts on the outermost battery cells (13) and keeps the battery cells (13) under a defined compression, the cell stack (12) on battery cells (13) is pushed into the housing (11) by the manipulation device (1) normal to the stacking direction (14) of the cell stack (12) and applied in the housing (11), the battery cells (13) of the slide rails (3, 4) are released and the slide rails (3, 4) are pulled out of the housing (11) again
    公开号:AT519968A4
    申请号:T50479/2017
    申请日:2017-06-08
    公开日:2018-12-15
    发明作者:Volck Theo；Fritz Wolfgang；Hennige Volker
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a method for equipping a housing of a battery module with a cell stack on compressed battery cells. The invention further relates to a manipulation device for performing this method.
    Many of today's lithium-ion cells show a certain increase in volume during charging / discharging as well as aging effects over the service life. In order to achieve a uniform pre-tension taking into account the
    To ensure volume change, it is usually not enough that
    Install battery cells in a housing without any further measures. For this purpose, compensation elements - usually so-called compression pads -, in particular elastic elements, are usually installed at the end or between the stacked battery cells in a module. When designed accordingly, these elements ensure compliance with the bias voltage on the battery cells within the specified range, even with a
    Volume change of the battery cells. Another function of the compensating elements is the mechanical fixation of the stacked battery cells. In order to be able to guarantee the function over the entire service life, the compensating elements often require a volume, which has a negative impact on the achievable energy density of the battery module, because less usable space is available for the installation of battery cells.
    Since these compensating elements increase the external dimensions of the battery cell stack in the unloaded state, this usually does not fit unloaded in the housing in battery module concepts that require the cells to be preloaded. The packing density of the cell stack must therefore be reduced in order to accommodate the cell stack in the housing.
    It is known to build a preload in the cell stack of the battery cells during assembly and to insert the cell stack into a housing by means of sliding plates, which housing has a closed profile when viewed in the direction of insertion. Furthermore, it is known to use a split housing, the pretension being achieved by pulling the two housing parts together. The housing parts are pulled together and held together by means of tensioning or pulling straps, screws or non-detachable joining processes such as
    Welding.
    These measures usually mean additional effort and / or additional
    Load on the battery cells, which can lead to damage or premature aging of the battery cells.
    The object of the invention is to avoid these disadvantages, to reduce the assembly effort and the load on the battery cells with maximized packing density.
    According to the invention, this object is achieved in that a cell stack on battery cells is introduced into a manipulation device between at least two slide rails or groups of slide rails, wherein at least one slide rail or a group of slide rails of the manipulation device acts on the outermost battery cells and the battery cells under a defined one Compression holds that the cell stack on battery cells is inserted into the housing and applied in the housing by the manipulation device normal to the stacking direction, the battery cells are released from the slide rails and the slide rails are pulled out of the housing again. Released means the elimination of a defined compression, which enables the slide rails to be pulled out of the housing essentially without the application of force on the cell stack.
    An advantageous embodiment of the invention provides that the battery cells
    Introducing into the manipulation device can be compressed by the slide rails.
    The cell stack with the elastic compensating elements is thus by means of
    Manipulation device gripped and compressed to a defined level. The compressed cell stack now has an external dimension which fits into the housing of the battery module and essentially without the application of force
    Cell stack can be introduced by a conveyor. When the cell stack is completely inserted, it is moved by a slight counter movement
    The slide rails relax and are supported on the inside of the housing.
    It when the inner walls of the housing and / or the
    Have corresponding clearances, for example longitudinal grooves, on the outer surfaces of the compensating elements, as a result of which the slide rails of the manipulation device can be pulled off essentially without exerting any force on the cell stack.
    In order to enable automatic loading, it is provided within the scope of the invention that the manipulation device for moving the support frame has a conveying device in the second direction, preferably the conveying device acting on at least one slide rail
    Has role set.
    A manipulation device is suitable for carrying out the method, which has at least one first slide rail and at least one second slide rail, the longitudinal axes of the first and second slide rails being arranged essentially parallel to one another and spaced apart from one another in a direction normal to the longitudinal axes, the distance between the first and second
    The slide rail essentially corresponds to the height of the cell stack on battery cells, and that the manipulation device can be moved in a second direction parallel to a longitudinal axis of the slide rails.
    To after the application of the cell stack in the housing, the slide rails in
    To be able to pull off the cell stack essentially without the action of force, it is advantageous if the first and / or second slide rail can be displaced in a first direction normal to the longitudinal axis of the slide rails and normally to the second direction.
    A particularly simple handling of the cell stack on battery cells is possible if at least two first and / or second slide rails are arranged in a fork-like manner in the normal direction in the first direction, preferably parallel to one another. The slide rails can thus - similar to the lifting forks of a fork lift truck - be pulled out in a direction parallel to the longitudinal axis of the slide rails after application of the cell stack in the housing between the compensating element and the housing.
    Another advantage that the method according to the invention offers is that the
    Packing density of the cell stack can be used to the maximum, and it is thus possible to equip, for example, a so-called monoframe housing with a very high packing density of cell stack. A monoframe housing can be produced very easily and inexpensively and also has the advantage that the monoframe housing is extremely stable and very well suited for battery cells.
    The invention is explained in more detail below with reference to the non-restrictive exemplary embodiments shown in the figures.
    It shows schematically:
    1 to 4 a manipulation device according to the invention in a first embodiment variant in oblique views during different phases of equipping a battery module with battery cells,
    5 to 7 a manipulation device according to the invention in a second embodiment during different phases of equipping a battery module with battery cells and
    Fig. 8 shows the battery module and the manipulation device in a section along the line VIII - VIII.
    Functionally identical parts are the same in the design variants
    Provide reference numerals.
    The manipulation devices 1 shown in the figures serve to equip a housing 11 of a battery module 20 with a cell stack 12 on battery cells 13 which are lined up, the stacking direction being indicated by the arrow 14. A compensating element 15 is arranged at each end 12a, 12b of the cell stack 12.
    1 to 4 show a first embodiment variant of a manipulation device 1, which has a support frame 2, on which first slide rails 3 and second slide rails 4, in the present case groups of three first slide rails 3 and three second slide rails 4, are arranged. The first slide rails 3 and the second slide rails 4 are arranged parallel to one another at a distance a which is measured in a first direction 5 which is formed normal to the longitudinal axes 3a, 4a of the slide rails 3, 4. The distance a essentially corresponds to the height h of the cell stack 12 of the battery cells 13 of the battery module 20. The support frame 2 and the first slide rails 3 and second slide rails 4 which project normally therefrom point — viewed from the side transversely to the second direction 6 and the stack direction 14 - The shape of a "C" or "U".
    The support frame 2 of the manipulation device 1 shown in FIGS. 1 to 4, together with the slide rails 3, 4 connected to the support frame 2, can be moved in a second direction 6 parallel to the longitudinal axes 3a, 4a of the first slide rails 3 and second slide rails 4. The support frame 2 and the slide rails 3, 4 are driven in the second direction 5 by a conveyor device 9 having a first roller set 7 and a second roller set 8, the first roller set 7 on the outside 3b of the first slide rails 3 and the second roller set 8 attacks on the outside 4b of the second slide rails 4.
    1, the cell stack 12 is fed to battery cells 13 by a gripping device 17 of the manipulation device 1 - transversely to the second direction 6 and transversely to the stacking direction 14. For easier threading between the first 3 and second slide rails 4, the cell stack 12 can be slightly compressed in the stacking direction 14 by the gripping device 17.
    FIG. 2 shows a first phase of the assembly, in which the cell stack 12 on battery cells 13 is arranged completely between the slide rails 3, 4 and is received by them.
    3 shows a second phase of the assembly process, in which the support frame 2 and the slide rails 3 and 4 together with the cell stack 12 on battery cells 13 are displaced in the second direction 6 towards the housing 11 of the battery module 20 by the conveyor device 9. If the slide rails 3, 4 are designed to be elastic, they can possibly be slightly bent towards one another during the displacement process in order to facilitate threading and insertion of the cell stack 12 into the housing 11.
    Fig. 4 shows a third phase of the assembly process. The cell stack 12 on battery cells 13 is now applied in the housing 11, the support frame 2 with the slide rails 3, 4 can now be pulled out of the housing 10 in the second direction 6.
    5 to 7 show a second embodiment of an inventive
    Manipulation device 1, which differs from the first variant shown in FIGS. 1 to 4 in that a compression device 10 on the support frame 2 for displacing the slide rails 3, 4 in the first direction 5 and / or for applying a compression force to the battery cells 13 is provided during the assembly process. The first direction 5 is parallel to the stacking direction 14 and normal to the longitudinal axes 3a, 4a, the slide rails 3, 4 and normal to the second direction 6.
    5 shows the battery module 20 and the manipulation device 1 during a first phase of fitting the battery cells 13, the cell stack 12 being arranged on the battery cells 13 between the slide rails 3, 4 and being received by them. The slide rails 3, 4 are pressed by the compression device 10 against the compensating elements 15 at the two ends 12a, 12b of the cell stack 12, as a result of which the battery cells 13 are compressed. Then the support frame 2 together with the cell stack 12 held and compressed by the slide rails 3, 4 is pushed in the second direction 6 into the housing 11 of the battery module 20.
    FIG. 6 shows a phase of the assembly process in which the stack 12 of battery cells 13 is positioned completely inside the housing 11 of the battery module 20. The compression device 10 is deactivated, as a result of which the slide rails 3, 4 become force-free and move somewhat away from the cell stack 12 in the first direction 5 or the stacking direction 14, or lift off from the latter. Due to the elasticity of the compensating elements 15 and the battery cells 13, the cell stack 12 expands to its working volume in the stacking direction 14 and is supported on the inner wall 11a of the housing 11 via the compensating elements 15, as shown in FIG. 8. It is advantageous if the compensating elements 15 and / or the inner wall 11a of the housing 11 are provided with, for example, groove-shaped clearances 18 in which the slide rails 3, 4 are guided. The cross sections of the exemptions 18 are designed to be somewhat larger than the corresponding cross sections of the slide rails 3, 4 in order to enable the slide rails 3, 4 to be pulled out between the housing 11 and the cell stack 12 with little friction. FIG. 7 shows the manipulation device 1 in its initial position, the slide rails 3, 4 being completely pulled out of the housing 11 of the battery module 20 in the second direction 6.
    权利要求:
    Claims (8)
    [1]
    P A T E N T A N S P R Ü C H E
    1. A method for equipping a housing (11) of a battery module (20) with a cell stack (12) on compressed battery cells (13), characterized in that the cell stack (12) on battery cells (13) in a manipulation device (1) between at least two slide rails (3, 4) or groups of slide rails (3, 4) are introduced, at least one slide rail (3, 4) or a group of slide rails (3, 4) of the manipulation device (1 ) and holds the battery cells (13) under a defined compression, that the cell stack (12) on battery cells (13) is inserted into the housing (11) by the manipulation device (1) normal to the stacking direction (14) of the cell stack (12) and is applied in the housing (11), the battery cells (13) are released from the slide rails (3, 4) and the slide rails (3, 4) are pulled out of the housing (11) again.
    [2]
    2. The method according to claim 1, characterized in that the battery cells (13) after introduction into the manipulation device (1) between the slide rails (3, 4) are compressed by the manipulation device (1).
    [3]
    3. manipulation device (1) for performing the method according to claim 1 or 2, characterized in that the manipulation device (1) has a support frame (2) with at least a first slide rail (3) and at least a second slide rail (4), the Longitudinal axes (3a) of the first (3) and second slide rails (4) are arranged essentially parallel to one another and in a first direction (5) normal to the longitudinal axes (3a, 4a) of the slide rails (3, 4) spaced apart on the support frame ( 2) are arranged, the distance (a) of the first slide rail (3) and second slide rail (4) essentially corresponding to the height (h) of the cell stack (12) on battery cells (13), and that the support frame (2) together the slide rails (3, 4) can be moved in a second direction (6) parallel to a longitudinal axis (3a, 4a) of the slide rails (3, 4).
    [4]
    4. manipulation device (1) according to claim 3, characterized in that the first (3) and / or second slide rail (4) in the first direction (5) normal to the longitudinal axes (3a, 4a) of the slide rails (3, 4) and can be moved normally to the second direction (6) and / or can be subjected to a force.
    [5]
    5. manipulation device (1) according to claim 4, characterized in that at least two first slide rails (3) in a normal plane to the first direction (5) are arranged fork-like, preferably parallel to each other.
    [6]
    6. manipulation device (1) according to claim 4 of 5, characterized in that at least two second slide rails (4) in a normal plane to the first direction (5) are arranged fork-like, preferably parallel to each other.
    [7]
    7. manipulation device (1) according to one of claims 4 to 6, characterized in that the manipulation device (1) for moving the support frame (2) in the second direction (6) has a conveyor (9), preferably the conveyor (9 ) has at least one roller set (7, 8) acting on at least one slide rail (3, 4).
    [8]
    8. manipulation device (1) according to one of claims 4 to 7, characterized in that the inner walls (11a) of the housing (11) and / or the outer surfaces (12a) of the compensating elements (12) corresponding exemptions (18), for example longitudinal grooves, exhibit.
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    同族专利:
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    EP3635799A1|2020-04-15|
    CN110710021A|2020-01-17|
    AT519968B1|2018-12-15|
    WO2018223166A1|2018-12-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE202009011262U1|2009-08-20|2009-12-24|Sasit-Industrietechnik Gmbh Zwickau|Apparatus for equipping and equipping motor vehicle battery cases|
    WO2012016675A1|2010-08-04|2012-02-09|Vb Autobatterie Gmbh & Co. Kgaa|Equipping motor vehicle battery housings with sets of electrode plates|
    CN206076399U|2016-08-08|2017-04-05|深圳市海目星激光科技有限公司|A kind of automatic production line assembled with shell for battery battery core|DE102019109715A1|2019-04-12|2020-10-15|Dr. Ing. H.C. F. Porsche Aktiengesellschaft|Battery module for a motor vehicle and method for its production|DE102012107161B4|2012-08-03|2017-10-26|Thyssenkrupp System Engineering Gmbh|Apparatus and method for producing an energy storage cell|
    US8895173B2|2012-12-21|2014-11-25|GM Global Technology Operations LLC|Battery module for an electric vehicle, and method of assembly thereof|
    DE102013201486A1|2013-01-30|2014-08-14|Robert Bosch Gmbh|Method for manufacturing lithium ion battery cell for battery for electrically driven motor vehicle e.g. ship, involves monitoring pressing force, and stopping pressing operation if pressing force reaches predetermined value|
    US9368827B2|2013-08-21|2016-06-14|GM Global Technology Operations LLC|Horizontal high speed stacking for batteries with prismatic cans|KR102364293B1|2019-02-26|2022-02-16|주식회사 엘지에너지솔루션|Device for Manufacturing Battery Pack and Method of Manufacturing Battery Pack|
    CN110867616B|2019-11-21|2022-03-08|深圳市众迈科技有限公司|Full-automatic assembly line for lithium ion batteries|
    DE102020106045A1|2020-03-05|2021-09-09|Aumann Limbach-Oberfrohna Gmbh|Method and device for stacking sheet-like components|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50479/2017A|AT519968B1|2017-06-08|2017-06-08|FITTING PROCESS FOR BATTERY CELLS AND MANIPULATION DEVICE FOR THIS|ATA50479/2017A| AT519968B1|2017-06-08|2017-06-08|FITTING PROCESS FOR BATTERY CELLS AND MANIPULATION DEVICE FOR THIS|
    EP18729554.8A| EP3635799A1|2017-06-08|2018-05-22|Fitting method for battery cells and manipulation device therefor|
    PCT/AT2018/060101| WO2018223166A1|2017-06-08|2018-05-22|Fitting method for battery cells and manipulation device therefor|
    CN201880037729.2A| CN110710021A|2017-06-08|2018-05-22|Method for assembling battery unit and operating device thereof|
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