• 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 module (200) having at least one battery cell (210), preferably a plurality of battery cells (210), wherein a support structure (100) is provided, and the support structure (100) is electrically conductive and at least two power connection elements (130 ) having.
    公开号:AT515129A4
    申请号:T50052/2014
    申请日:2014-01-28
    公开日:2015-06-15
    发明作者:Markus Ing Kores；Martin Dipl Ing Fh Michelitsch；Harald Dipl Ing Fh Stütz；Oliver Dipl Ing Fh Urem
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a battery module having at least one battery cell, preferably a plurality of battery cells, wherein a support structure for receiving the battery cell and / or the battery module is provided.
    The rechargeable batteries used in particular in the automotive industry usually consist of a multiplicity of battery cells, which are combined in cell stacks and connected to one another. These cell stacks are usually housed in a component or housing, which serves for the mechanical protection and recording of the cell stack, and thus form a battery module, wherein a plurality of power terminals for contacting the individual cell poles of the battery cells are required. For space reasons, it is often necessary, locally not immediately adjacent components within the battery, which consists of at least one battery module, or components in the vehicle, such as battery,
    Inverter, or electric motor via long cable lines to electrically connect with each other. This wiring is often expensive and also brings extra weight.
    In order to further improve the mechanical stability of the housing of the battery, reinforcing elements have been known in the prior art, which are arranged in particular in the housing wall. These stiffening elements are made for example of the same material as the housing, and formed for example as stiffening ribs. Likewise, additional stiffening elements may be made of a different material in the component wall itself or on the component. However, this represents an additional material and thus cost in the production of the battery case.
    It is therefore an object of the invention to provide an improved battery module with a support structure for receiving at least one battery cell available, which is inexpensive to produce in a simple manner.
    This object is achieved in that the support structure is electrically conductive. Thus, the support structure not only serves to mechanically stabilize the battery module, but is also suitable for conducting electrical power and has at least two power connection elements. Thus, the battery module according to the invention in the production or handling of the prior art is superior, because structurally supporting functions as well as current-carrying properties are combined in one element by the support structure according to the invention.
    In this case, it is particularly preferably provided that the support structure has a plurality of stiffening elements, which are formed substantially strand-shaped, and are preferably arranged substantially parallel or at right angles to each other. This arrangement provides a particularly improved stability of the battery module, at the same time the contact of the individual electrically conductive stiffening elements is simplified with power connector elements. Thus, the support structure of the invention can be performed in a simple manner, for example as an extruded profile with preferably substantially I, T, L or U-shaped cross-section or as a tubular profile with a substantially circular, elliptical or polygonal cross section or as a casting. This arrangement of stiffening elements to a support structure can be produced in a cost effective manner in large quantities.
    In a particularly preferred embodiment of the invention, the support structure is made of aluminum or an aluminum alloy. This material has the advantage that it has a sufficient for the operation of the battery conductivity, but at the same time only a low weight. In particular, weight savings are often an issue in rechargeable batteries to be used in vehicle drive systems.
    Since in vehicles in particular there is often the need to keep the space required for electrical / electronic components as low as possible, but which must be supplied with electric current, it is provided in a particularly preferred variant of the invention that at least one of the two with the support structure connected power connector elements from outside the battery module (200) is accessible. This allows easy connection of the battery module to its environment, for example to electrical components of a vehicle.
    Thus, for example, at least one stiffening element can be available as an electrical line for electrical or electronic components outside the component without, as usual, one or more cables around the
    Battery must be led around. This also simplifies the wiring in the battery, for example in a vehicle.
    To avoid electrical flashovers by the electrically conductive support structure or between the individual stiffening elements of the support structure, this is carried out in a further embodiment of the invention with respect to their environment isolated.
    This insulation can, for example, by means of encapsulation, lathering,
    Coating, shrinking, gluing, pouring, wrapping, folding or varnish be applied. As insulation material, all known in this context, plastics and other non-conductive materials are suitable. For safety reasons, a continuous electrical insulation should be sought, which is broken only at the power connections.
    In a further embodiment, the support structure is formed as an integral part of a housing of the battery module. The support structure gives the structure in this way additional stability. Here, the housing is preferably made of an insulating material, so that an additional insulation of the support structure is not necessary in this embodiment.
    The need for insulation of the electrically conductive support structure is eliminated even if the support structure is arranged in a foam structure. The foam structure here is either part of the battery module, for example in the case of foamed battery cells or directly forms the housing of the battery module, so that no additional housing made of a rigid material such as plastic for the battery module is needed.
    The invention further relates to a housing for receiving at least one battery cell or a battery module having at least two, preferably a plurality of battery cells, wherein the housing has an electrically conductive support structure as stated above. Here, the support structure can be releasably or permanently attached to the surface, in particular on the inside of the housing.
    In a particularly preferred embodiment of the invention, however, the support structure is formed as an integral part of the housing. In this case, for example, during the production of the housing, which can have any conceivable shape which is suitable for receiving a battery cell or a battery cell assembly or stack, namely a battery module, introduced into the material of the housing, in particular injected or molded. In this variant, therefore, the support structure or the at least one stiffening element is integrated directly in the housing and isolated by the material of the housing itself. At the points of electrical contact the support structure is free. Such a composite is produced, for example, by laminating the support structure or its stiffening elements in an electrically insulating fiber composite material or by injecting / pouring the support structure into a plastic. The support structure may in this case be completely received within the housing or partially protrude from this. The protruding areas can in turn serve as a support structure and / or the power supply of other components.
    In a particularly preferred embodiment of the housing, a first housing part and at least a second housing part are provided, wherein the electrically conductive support structure is arranged in the first housing part and / or in the second housing part, and the two housing parts are releasably or permanently connected to one another.
    In the following, the invention will be explained in more detail with reference to non-limiting embodiments. Show in it
    1 is a perspective view of a housing part according to the invention with stiffening elements of the support structure,
    Figs. 2 and 3 detailed views of the stiffening elements of FIG. 1,
    Fig. 4 is a sectional view through a battery module, of a
    Carrying structure is worn with four stiffening elements,
    Figs. 5 and 6 show a schematic side view of a battery arrangement on a carrying structure,
    Fig. 7 is a schematic sectional view through a foamed
    Battery module,
    Fig. 8 is a schematic side view of the battery module of Fig. 7, and
    9 is a schematic plan view of the battery module of FIG. 7.
    1 shows a housing part 10 in which a support structure 100 with a plurality of stiffening elements 110 is arranged. These stiffening elements 110 are substantially parallel and bundled at right angles to each other and are fixed in position within the housing part 10 via fastening elements 120, which are designed in the present embodiment of the invention in a clamp-like manner.
    Each stiffening element 110 is assigned at least one power connection element 130, 131, wherein the stiffening elements 110 in this embodiment of the invention are arranged entirely within the housing part 10. Some of the stiffening elements 110 have power connection elements 130 which are arranged inside the housing part 10, while a further group of power connection elements 131 are arranged on the outside of the housing part 10 and penetrate the latter in order to make a conductive connection with the associated stiffening elements 110. The power connection elements 130, 131 may in this case be designed as a directly corresponding plug connection, for example as stromabnehmende socket on the stiffening element 110 with corresponding current-carrying bolt as a counterpart to the battery module or attached to additional connecting elements, such as on a cable with cable lug or on a busbar with screw ,
    FIG. 2 shows a detail view of a stiffening element 110 from FIG. 1. It consists of a hollow profile 111 made of aluminum, which has a substantially rectangular cross-section. On this hollow section 111, an insulation 112 is applied, for example, a plastic sheath which prevents electrical flashovers to adjacent stiffening elements 110 or other components made of electrically conductive materials.
    As shown in FIG. 3, in this variant, each stiffening element 110 has an electrically conductive connecting element 113 which is inserted into the hollow profile 111 and is thus in contact therewith. With a defined geometry on the connection element 113, the power connection elements 130, 131 are connected. Cover caps 114 of an electrically insulating material such as plastic cover the terminal 113 and the end of the stiffener 110 to provide protection against inadvertent contact with the electrically conductive parts. Free from isolation remains only those
    Geometry of the connection element 113, which corresponds to the power connection element 130, 131.
    In FIG. 4, a further embodiment of the invention is shown in greatly simplified form, in which a battery module 200 is arranged on a support structure 100 consisting of four stiffening elements 110.
    5 shows a schematic side view of the arrangement of a battery 300 with three battery modules 200, which are arranged in a battery housing 301. In this case, the support structure 100 according to the invention penetrates the battery housing 301, wherein the weight of the battery modules 200 is received by the support structure 100, while at the same time the electrical energy delivered by the battery modules 200 or supplied to the battery modules 200 in the charging cycle is discharged via the support structure 100 ,
    Furthermore, external components such as an electric motor 400 or an inverter 401 are arranged on the support structure 100 and are in an electrically conductive connection with it. The need for cable connections can be significantly reduced in this way. Of course, special attention must be paid to the insulation of the support structure 100 in order to prevent short circuits.
    A similar arrangement, a so-called range extender concept, can be seen in FIG. Here, the support structure according to the invention 100 connects a range extender unit 410 consisting of a range extender generator 411 and the range extender 412 and an inverter 401, electrically conductive with an electric drive unit consisting of the battery 300, the electric motor 400 and the inverter 401.
    FIG. 7 shows a schematic cross section through a foamed battery module 200. All components are assembled here and then foamed together in a foaming mold. A separate module housing is not required here. The battery cells 210, which are usually in the form of a cell stack, are accommodated in one or more cell frames 211.
    These cell frames 211 have connecting elements 212, for example tabs, which allow a mechanical connection with the stiffening elements 110 of the support structure 100, wherein the connecting elements 212 are made of an electrically non-conductive material. The connection takes place for example by means of gluing, screwing, clipping or riveting. In addition, depending on the interconnection of the battery cells 210, the cell poles 213 of the first and the last battery cell 210 are electrically connected to the stiffening elements 110. This electrically conductive connection can be effected in particular by means of bus bar 140 or cable connection 150. The entire assembly is surrounded by hardened foam 220.
    As shown in FIGS. 8 and 9, the conductive stiffener 110 of the support structure 100 protrudes from the foamed battery module 200 and is simultaneously used as a load-bearing weight-absorbing member as well as a module electrical outlet 230.
    It is understood that the present invention is not limited to the above-described embodiments. In particular, the support structure according to the invention can be designed differently, in particular number, shape and arrangement of the stiffening elements vary, as well as the position and arrangement of the support structure itself can be adapted to the various requirements. It is essential to the invention that the carrying structure serves not only for weight absorption but also for the electrical line.
    权利要求:
    Claims (13)
    [1]
    PATENT CLAIMS 1. Battery module (200) with at least one battery cell (210), preferably a plurality of battery cells (210), wherein a support structure (100) is provided, characterized in that the support structure (100) is electrically conductive and at least two power connection elements (130, 131).
    [2]
    Second battery module (200) according to claim 1, characterized in that the support structure (100) has a plurality of stiffening elements (110) which are formed substantially strand-shaped, and are preferably arranged substantially parallel or perpendicular to each other.
    [3]
    3. Battery module (200) according to claim 1 or 2, characterized in that the support structure (100) as an extruded profile with preferably substantially I, T, L or U-shaped cross section or as a tubular profile with a substantially circular, elliptical or polygonal cross-section or executed as a casting.
    [4]
    4. Battery module (200) according to one of claims 1 to 3, characterized in that the support structure (100) is made of aluminum or an aluminum alloy.
    [5]
    5. Battery module (200) according to any one of claims 1 to 4, characterized in that at least one of the two with the support structure (100) in communication with the power connection elements (130, 131) from outside the battery module (200) is accessible.
    [6]
    6. battery module (200) according to any one of claims 2 to 5, characterized in that at least one stiffening element (110) of the support structure (100) as a conduit for external electrical and / or electronic components (400, 401, 410, 411, 412) is available.
    [7]
    7. Battery module (200) according to any one of claims 1 to 6, characterized in that the support structure (100) is carried out with respect to their environment isolated.
    [8]
    8. battery module (200) according to claim 7, characterized in that the insulation (112) by means of encapsulation, lathering, coating, shrinking, gluing, pouring, wrapping, folding or coating on the support structure (100) is applied.
    [9]
    9. Battery module (200) according to any one of claims 1 to 8, characterized in that the support structure (100) is formed as an integral part of a housing of the battery module (200).
    [10]
    10. Battery module (200) according to any one of claims 1 to 9, characterized in that the support structure (100) in a foam structure (220) is arranged.
    [11]
    11. Housing for receiving at least one battery cell or a battery module with at least two, preferably a plurality of battery cells, characterized in that the housing has an electrically conductive support structure (110) with at least two power connection elements (130, 131).
    [12]
    12. Housing according to claim 11, characterized in that the support structure (110) is releasably or non-detachably attached to the surface, in particular on the inside of the housing.
    [13]
    13. Housing according to claim 11, characterized in that the support structure (110) is formed as an integral part of the housing. 2014 01 28 Ha
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    同族专利:
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    WO2015113853A1|2015-08-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE102009043635A1|2009-09-29|2011-04-07|Continental Automotive Gmbh|Battery housing for use in energy storage system of e.g. electric vehicle, has conductor frame arranged within inner chamber, where battery module is fixed between two cross beams of frame|
    WO2011061571A1|2009-11-18|2011-05-26|Hydro Aluminium Alunord|Battery tray for vehicle and method for producing the battery tray|
    WO2012028929A1|2010-08-31|2012-03-08|Toyota Jidosha Kabushiki Kaisha|Electricity storage device and vehicle|DE102017001880A1|2017-02-27|2018-08-30|Audi Ag|Lower shell for a battery housing with continuous webs and traction battery for a motor vehicle|US7118827B2|2003-08-06|2006-10-10|Delphi Technologies, Inc.|Battery assembly and method of making same|
    JP5331450B2|2008-11-07|2013-10-30|株式会社日立製作所|Power storage module, power storage device, electric motor drive system, and vehicle|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA50052/2014A|AT515129B1|2014-01-28|2014-01-28|battery module|ATA50052/2014A| AT515129B1|2014-01-28|2014-01-28|battery module|
    PCT/EP2015/050925| WO2015113853A1|2014-01-28|2015-01-20|Battery module|
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