• 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 battery (1), in particular for an electric vehicle, having at least one stack (2) of battery cells (3) arranged next to one another or above one another, which are pressed against one another via at least one tensioning element (7, 8) Stack (2) each have an end plate (5, 6) is arranged. In order to ensure a reliable connection of the battery cells in a stack with little installation effort and low weight and space, it is provided that at least one clamping element (7, 8) with at least one end (7a, 7b, 8a, 8b) over at least one Positive connection (9, 10) with at least one end plate (5, 6) is detachably connected.
    公开号:AT510793A1
    申请号:T1899/2010
    申请日:2010-11-17
    公开日:2012-06-15
    发明作者:
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    56102
    The invention relates to a battery, in particular for an electric vehicle, with at least one stack of juxtaposed or superimposed battery cells, which are pressed against each other via at least one clamping element, wherein at each end of the stack in each case an end plate is arranged.
    US 4,317,497 A discloses a battery cell pack for a vehicle wherein the cells are bonded together between two end plates by steel bands comprising the cells. A similar solution is known from US 4,020,244 A, wherein the ends of the steel strips comprising the cells are made overlapping and spot-welded.
    The US 7,125,628 B describes a battery pack with a plurality of parallelepiped-shaped batteries, wherein the batteries are arranged side by side in the thickness direction and clamped together by means of a pressure plates via lag screws. A similar solution for a battery module is known from EP 732 759 A1. By the battery cells clamped with constant pressure, the heat capacity can be increased and the number of charge / discharge cycles can be increased.
    The disadvantage is that the known solutions for clamping battery cells require relatively much installation effort and assembly time. Although solutions with lag screws are very robust, but require a relatively large amount of space and affect adversely on the overall weight. Tension bands, which are welded together at the ends, although have the advantage of low weight, however, it may come in the course of the life of the battery damage due to temperature fluctuations and mechanical alternating loads.
    It is the object of the invention to avoid these disadvantages and to enable in the simplest but most durable manner a summarization of battery cells in a battery, wherein the total weight should be kept as small as possible.
    According to the invention this is achieved in that at least one clamping element with at least one end via at least one positive connection with at least one end plate is releasably connected, preferably at least one clamping element is releasably connected with at least one first end with a first end plate.
    In this case, the clamping element can be releasably connected to a second end with an end plate. - 2 -
    In a first embodiment with low material use is provided that the clamping element is positively connected both with its first end, and with its second end to the first end plate, wherein the clamping element, starting from the first end plate to a first end face of the stack, the second end plate and a second end face is guided to the first end plate, and wherein the clamping element is connected at opposite end faces with the first end plate. The battery can be wrapped by the clamping element U-shaped. The length of the tensioning element essentially corresponds to the sum of the double height of the battery measured in the stacking direction of the battery cells and the length of a battery cell. In this case, a minimum number of parts can be achieved if only one clamping element is used per stack.
    In a second variant of the invention, it is provided that at least one clamping element is connected with a first end to the first end plate and with a second end to the second end plate. It is particularly advantageous if at least a first clamping element is connected at its first end to the first end plate and at a second end to the second end plate in the region of a first side of the stack, and that at least one second clamping element with a first end with the first end plate and having a second end connected to the second end plate in the region of a second side of the stack. In order to achieve a uniform holding forces, it is advantageous if the first and the second clamping element are arranged on opposite sides, preferably on opposite end faces, of the stack. The length of the clamping element corresponds in this case essentially the height of the battery measured in the stacking direction of the battery cells. Per stack thus the battery cells are pressed together by two clamping elements.
    The positive connection may have at least one first positive locking element on the clamping element and a second positive locking element on the end plate, wherein preferably the two positive locking elements may have mutually reciprocal shapes.
    A particularly permanent attachment can be achieved if the first or second form-fitting element is formed by a preferably protruding from the clamping element key area and the second or first form-locking element by a preferably recessed in the end plate lock area, wherein preferably the key area by a particularly preferably spherical projection or pin, and the lock area is formed by a groove or depression. - 3 -
    In an embodiment of the invention suitable for transmitting large holding forces, it is provided that the clamping element has at at least one end two first form-locking elements arranged on opposite longitudinal edges of the clamping element, which interact with corresponding second form-locking elements of an end plate.
    A quick and permanent assembly can be achieved if the clamping element has at least one, preferably two, first form-fitting elements at each end.
    The straps can be made of aluminum or steel sheet or plastic. In order to keep the number of items as small as possible, it is advantageous if the first positive locking element is formed integrally with the clamping element. In principle, it is possible to assemble the clamping elements by individual members arranged in the pulling direction one behind the other. A simpler manufacturing and assembly can be achieved, however, if each clamping element between the positive-locking elements consists of only one piece.
    In order to save weight, size and cost is preferably provided that the clamping element is formed by a, preferably flexible and / or elastic, strap.
    A particularly simple assembly can be achieved if at least one elastically deformable intermediate layer, preferably a mat, of an electrically insulating, heat-conducting material is arranged between at least two stacked battery cells and / or between at least one battery cell and / or an end plate. Such electrically insulating heat-conducting mats are known, for example, under the trade name Sil-Pad®. In this case, the battery cells are pressed together by external pressure application to the end plates, wherein the intermediate layers are elastically compressed. In this state, the clamping elements are suspended on the end plates via the form-locking connections. After releasing the external compressive force of the stack undergoes an increase in height by the elastic deformation of the intermediate layer, which is limited by finally claimed to train clamping elements. Thus, the battery cells are permanently held together by the clamping elements with defined pressure.
    The invention will be explained in more detail below with reference to FIG.
    1 shows a battery according to the invention in an oblique view, FIG. 2 shows a stack of battery cells of a battery according to the invention in a front view in a first embodiment and FIG. 3 shows a stack of battery cells of a battery according to the invention in a front view in a first embodiment second embodiment.
    The battery 1 according to the invention has a plurality of stacks 2 of battery cells 3 arranged one above the other.
    Each stack 2 of battery cells 3 is compressed via a tensioning device 4, with 2 ', 2 " of the stack 2 each have an end plate 5, 6 is arranged.
    1 and 2 show an embodiment in which the battery cells 3 are pressed against each other by a single clamping element 7 formed by a tension band, the tensioning element 7 each comprising a stack 2 in a U-shape. The clamping element 7 is - starting from the first end plate 5 - to a first end face 2a of the stack 2, the second end plate 6 and a second end 2b is guided to the first end plate 5, wherein the clamping element 7 at opposite end faces 2a, 2b with the first end plate 5 is connected via form-locking connections 9, 10. The length of the clamping element 7 corresponds to the sum of twice the height H of the battery 1 and the length L of the battery cell. 3
    In contrast, in the embodiment shown in FIG. 3, the clamping device 4 per stack 2 has a first clamping element 7 formed by a clamping band and a second clamping element 8 formed by a clamping band, each end 7a, 7b having a first or second form-locking connection 9, 10 is releasably connected to opposite first and second end plates 5, 6, respectively. The length of each clamping element corresponds substantially to the height H of the battery. 1
    Each positive connection 9, 10 consists of a first positive locking element 9a, 10a on the clamping element 7, 8 and a second positive locking element 9b, 10b on the end plate 5. The first positive locking element 9a, 10a is characterized by a key-like area, such as a projection, pin or Hook, the clamping element 7 is formed, the second positive locking element 9b is formed by a correspondingly shaped castle-like area, such as a groove, an eye or a recess in or on the respective end plate 5, 6. The groove of the second positive locking element 9b, 10b is designed so that the first positive locking element 9a, 10a can engage. As can be seen from the Fig., A positive connection 9 is provided in the region of each longitudinal edge or a each corner E of the clamping element 7, so that the clamping element 7 can be mounted on both sides in the end plate 5.
    The second positive connection 10 is formed analogously to the first positive connection 9.
    The straps 7, 8 are made of aluminum, steel, plastic or other strip material. The first positive locking elements 9a can be formed integrally with the clamping element 7, 8. For example, spherical or cuboidal first shape key elements 9a may be welded to the clamping element 7, 8.
    As can be seen, two clamping bands 7, 8 can be provided per stack. The tension bands 7, 8 have a predefined length in order to provide sufficient clamping force for holding the cells 3 in all operating ranges and also after a longer service life of the battery.
    The straps 7, 8 are releasably, but still captively connected to the end plates 5, 6 and have the advantage that with very small size and very low weight of the assembly work and thus the cost can be kept very low.
    权利要求:
    Claims (22)
    [1]
    , 1 56102vlp:: *: * *; ** ";:: ** "File: 4BA 1899/2010 j * # * · Class: H 01 M« * «** ···» · * s ( new) PATENT CLAIMS 1. Battery (1), in particular for an electric vehicle, with at least one stack (2) of juxtaposed or stacked battery cells (3) which are pressed against each other via at least one clamping element (7, 8), wherein at each end in each case one end plate (5, 6) is arranged in the stack (2), wherein at least one tension element (7, 8) has at at least one end (7a, 7b, 8a, 8b) a positive-locking element (9a, 10a) of a form-locking connection (9, 10), characterized in that at least one clamping element (7, 8) with at least one end (7a, 7b; 8a, 8b) via at least one positive connection (9, 10) with at least one end plate (5, 6) is detachably connected , 2. Battery (1) according to claim 1, characterized in that at least one clamping element (7, 8) with a first end (7a, 8a) with a first end plate (5) is detachably connected. 3. Battery (1) according to claim 1 or 2, characterized in that the clamping element (7, 8) with a second end (7b, 8b) with an end plate (5, 6) is detachably connected. 4. Battery (1) according to one of claims 1 to 3, characterized in that the clamping element (7) with both the first end (7a) and with the second end (7b) with the first end plate (5) is positively connected wherein the tensioning element (7) is guided from the first end plate (5) to a first end face (2a) of the stack (2), the second end plate (6) and a second end face (2b) to the first end plate (5) , and wherein the clamping element (7) is connected at opposite end faces (2a, 2b) to the first end plate (5). 5. Battery (1) according to claim 4, characterized in that the clamping element (7), the stack (2) wraps around in a substantially U-shaped. 6. Battery (1) according to claim 4 or 5, characterized in that the length of the tensioning element (7) substantially the sum of the in POSSIBILITY I * * * * * * * · * * stacking direction of the battery ^ lleia • * * It is equal to twice the height (H) of the battery (1) and the length (L) of a battery cell (3). 7. Battery (1) according to any one of claims 4 to 6, characterized in that the battery cells (3) of each stack (2) in each case by a single clamping element (7) are pressed together. 8. battery (1) according to one of claims 1 to 3, characterized in that at least one clamping element (7, 8) having a first end (7a, 8a) with the first end plate (5) and with a second end (7b, 8b) is connected to the second end plate (6). 9. Battery (1) according to claim 8, characterized in that at least one first clamping element (7) with its first end (7a) with the first end plate (5) and with a second end 7 (b) with the second end plate (6 ) is connected in the region of a first side of the stack (2), and that at least one second clamping element (8) with a first end (8a) with the first end plate (5) and with a second end (8b) with the second end plate (8) 6) is connected in the region of a second side of the stack (2). 10. Battery (1) according to claim 9, characterized in that the first and the second clamping element (7, 8) on opposite sides, preferably on opposite end faces (2a, 2b), of the stack (2) are arranged. 11. Battery (1) according to one of claims 8 to 10, characterized in that the length of the Spanneiementes (7, 8) substantially in the stacking direction of the battery cells (2) measured height (H) of the battery (1). 12. Battery (1) according to any one of claims 8 to 11, characterized in that the battery cells (3) of each stack (2) in each case by two clamping elements (7, 8) are pressed together. 13. Battery (1) according to one of claims 1 to 12, characterized in that the positive connection (9, 10) at least a first positive locking element (9a, 10a) on the clamping element (7, 8) and a second positive locking element (9b, 10b) on the end plate (5, 6), wherein the first POSSIBLE and the second form-fitting operation are designed to be gripping, and wherein preferably first and second form-fitting elements (9, 10) have mutually reciprocal shapes. 14. Battery (1) according to claim 13, characterized in that the first or second positive locking element (9a, 10a; 9b, 10b) by a preferably from the clamping element (7, 8) projecting key-like region and the second or first positive locking element ( 9b, 10b, 9a, 10a) is formed by a preferably in the end plate (5, 6) formed castle-like area, preferably the key-like area by a particularly preferably spherical projection pin or hook, and the castle-like area through a groove, recess, or eyelet is formed. 15. Battery (1) according to claim 13 or 14, characterized in that the clamping element (7, 8) at least one end of two opposite longitudinal edges of the clamping element (7, 8) arranged first positive locking elements (9a, 10a) which with corresponding second positive locking elements (9b, 10b) of an end plate (5, 6) cooperating. 16. Battery (1) according to one of claims 1 to 15, characterized in that the clamping element (7, 8) at least partially made of metal, preferably made of aluminum or steel sheet. 17. Battery (1) according to one of claims 1 to 16, characterized in that the clamping element (7, 8) consists at least partially of plastic. 18. Battery (1) according to any one of claims 13 to 17, characterized in that the first positive-locking element (9a, 10a) is formed integrally with the clamping element (7, 8). 19. Battery (1) according to any one of claims 13 to 18, characterized in that the clamping element (7, 8) at each end (7a, 7b, 8a, 8b) at least one, preferably two, first positive locking elements (9a, 10a ) having. SUBSEQUENT

    the tensioning element (7, 8) consists of one piece. 21. Battery (1) according to one of claims 1 to 20, characterized in that the clamping element (7, 8) is formed by a, preferably flexible and / or elastic, strap.
    [2]
    2. Battery (1) according to claim 1, characterized in that at least one clamping element (7, 8) with a first end (7a, 8a) with a first end plate (5) is detachably connected.
    [3]
    3. Battery (1) according to claim 1 or 2, characterized in that the clamping element (7, 8) with a second end (7b, 8b) with an end plate (5, 6) is detachably connected.
    [4]
    4. Battery (1) according to one of claims 1 to 3, characterized in that the clamping element (7) with both the first end (7a) and with the second end (7b) with the first end plate (5) is positively connected wherein the tensioning element (7) is guided from the first end plate (5) to a first end face (2a) of the stack (2), the second end plate (6) and a second end face (2b) to the first end plate (5) , and wherein the clamping element (7) is connected at opposite end faces (2a, 2b) to the first end plate (5).
    [5]
    5. Battery (1) according to claim 4, characterized in that the clamping element (7), the stack (2) wraps around in a substantially U-shaped.
    [6]
    6. Battery (1) according to claim 4 or 5, characterized in that the length of the clamping element (7) substantially the sum of the stacked in the battery cells (3) measured twice the height (H) of the battery (1) and the length (L) corresponds to a battery cell (3).
    1. Battery (1), in particular for an electric vehicle, with at least one stack (2) of battery cells (3) arranged side by side or one above the other, which are connected via at least one tensioning element (3). 7, 8) are pressed against each other, wherein an end plate (5, 6) is arranged at each end of the stack (2), characterized in that at least one clamping element (7, 8) with at least one end (7a, 7b, 8a , 8b) is releasably connected to at least one end plate (5, 6) via at least one form-locking connection (9, 10).
    [7]
    7. Battery (1) according to any one of claims 4 to 6, characterized in that the battery cells (3) of each stack (2) in each case by a single clamping element (7) are pressed together.
    [8]
    8. Battery (1) according to any one of claims 1 to 3, characterized in that at least one clamping element (7, 8) having a first end (7a, 8a) «• 4 _ y _ * · · * with the first end plate (5) and a second end (7b, 8b) is connected to the second end plate (6).
    [9]
    9. Battery (1) according to claim 8, characterized in that at least one first clamping element (7) with its first end (7a) with the first end plate (5) and with a second end 7 (b) with the second end plate (6 ) is connected in the region of a first side of the stack (2), and that at least one second clamping element (8) with a first end (8a) with the first end plate (5) and with a second end (8b) with the second end plate (8) 6) is connected in the region of a second side of the stack (2).
    [10]
    10. Battery (1) according to claim 9, characterized in that the first and the second clamping element (7, 8) on opposite sides, preferably on opposite end faces (2a, 2b), of the stack (2) are arranged.
    [11]
    11. Battery (1) according to any one of claims 8 to 10, characterized in that the length of the clamping element (7, 8) substantially in the stacking direction of the battery cells (2) measured height (H) of the battery (1).
    [12]
    12. Battery (1) according to any one of claims 8 to 11, characterized in that the battery cells (3) of each stack (2) in each case by two clamping elements (7, 8) are pressed together.
    [13]
    13. Battery (1) according to one of claims 1 to 12, characterized in that the positive connection (9, 10) at least a first positive locking element (9a, 10a)) on the clamping element (7, 8) and a second positive locking element (9b, 10b ) on the end plate (5, 6), wherein first and second positive locking elements (9, 10) are formed interlocking, and preferably wherein first and second positive locking elements (9, 10) have mutually reciprocal shapes.
    [14]
    14. Battery (1) according to claim 13, characterized in that the first or second positive locking element (9a, 10a; 9b, 10b) by a preferably from the clamping element (7, 8) projecting key-like region and the second or first positive locking element ( 9b, 10b, 9a, 10a) is formed by a preferably in the end plate (5, 6) formed castle-like area, preferably the key-like area by a particularly preferably spherical projection pin or hook, and the castle-like area through a groove, recess, or eyelet is formed. - 8th -
    [15]
    15. Battery (1) according to claim 13 or 14, characterized in that the clamping element (7, 8) at least one end of two opposite longitudinal edges of the clamping element (7, 8) arranged first positive locking elements (9a, 10a) which with corresponding second positive locking elements (9b, 10b) of an end plate (5, 6) cooperating.
    [16]
    16. Battery (1) according to one of claims 1 to 15, characterized in that the clamping element (7, 8) at least partially made of metal, preferably made of aluminum or steel sheet.
    [17]
    17. Battery (1) according to one of claims 1 to 16, characterized in that the clamping element (7, 8) consists at least partially of plastic.
    [18]
    18. Battery (1) according to one of claims 1 to 17, characterized in that the first positive-locking element (9a, 10a) is formed integrally with the clamping element (7, 8).
    [19]
    19. Battery (1) according to any one of claims 13 to 18, characterized in that the clamping element (7, 8) at each end (7a, 7b, 8a, 8b) at least one, preferably two, first positive locking elements (9a, 10a ) having.
    [20]
    20. Battery (1) according to one of claims 1 to 19, characterized in that the clamping element (7, 8) consists of one piece.
    [21]
    21. Battery (1) according to one of claims 1 to 20, characterized in that the clamping element (7, 8) is formed by a, preferably flexible and / or elastic, strap.
    22. Battery (1) according to one of claims 1 to 21, characterized in that between at least two stacked battery cells (2) and / or between at least one battery cell (2) and / or an end plate (5, 6) at least one elastically deformable Intermediate layer (11), preferably a mat, made of an electrically insulating, heat-conducting material, is arranged.

    i Tel; MS 1) Dt ai-ö {* 4 | ]) m te 333 2010 11 17 Fu / St · * · · · * # * * * * * MM • * * < * * »« »« • t * * i · «f» ·· «* · * 4 ··



    [22]
    22. Battery (1) according to one of claims 1 to 21, characterized in that between at least two stacked battery cells (2) and / or between at least one battery cell (2) and an end plate (5, 6) at least one elastically deformable intermediate layer ( 11), preferably a mat, made of an electrically insulating, heat-conducting material is arranged.

    2011 12 15 F / B SURPLUS
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    同族专利:
    公开号 | 公开日
    AT510793B1|2015-04-15|
    WO2012065890A1|2012-05-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    KR20040043432A|2002-11-18|2004-05-24|현대자동차주식회사|Assembling structure of electrochemical fuel cell stack|
    EP1760806A2|2005-09-05|2007-03-07|Samsung SDI Co., Ltd.|Battery module having an improved unit battery assembly coupling structure|
    DE102008010825A1|2008-02-23|2009-08-27|Daimler Ag|Battery with a heat conducting plate and several single cells|
    US4020244A|1975-02-18|1977-04-26|Motorola, Inc.|Clamping structure for battery cells|
    US4317497A|1980-07-28|1982-03-02|General Motors Corporation|Battery tray for electric vehicle|
    JPH08250151A|1995-03-14|1996-09-27|Matsushita Electric Ind Co Ltd|Unit cell of enclosed alkaline storage battery|
    JP4127985B2|2001-07-23|2008-07-30|松下電器産業株式会社|Battery pack|
    JP4593057B2|2002-05-07|2010-12-08|富士重工業株式会社|Plate battery assembly structure|
    JP2008282582A|2007-05-08|2008-11-20|Sanyo Electric Co Ltd|Battery pack|
    DE102008034874B4|2008-07-26|2011-06-30|Daimler AG, 70327|Battery and use of a battery|
    KR101108190B1|2009-12-23|2012-01-31|에스비리모티브 주식회사|Battery module providing improved fixing structure for end plate and the fixing method thereof|DE102013010472A1|2013-06-24|2014-12-24|Kme Germany Gmbh & Co. Kg|Connector for connecting poles of two batteries or battery cells and method for producing a connector for connecting poles of two batteries or battery cells|
    DE102018210181A1|2018-06-22|2019-12-24|Audi Ag|fuel cell stack|
    DE102018210176A1|2018-06-22|2019-12-24|Audi Ag|fuel cell stack|
    法律状态:
    2019-07-15| MM01| Lapse because of not paying annual fees|Effective date: 20181117 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1899/2010A|AT510793B1|2010-11-17|2010-11-17|BATTERY|ATA1899/2010A| AT510793B1|2010-11-17|2010-11-17|BATTERY|
    PCT/EP2011/069710| WO2012065890A1|2010-11-17|2011-11-09|Battery|
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