• 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 rechargeable battery having at least one battery module (1, 101) with at least one stack (1a, 101a) of preferably adjacent battery cells (2, 102), with a liquid cooling system having at least one cooling channel (5, 105) at least one battery cell (2, 102) is in thermal contact. In order to enable a reliable manner of reliable cooling of the battery module, it is provided that a cooling channel carrier (4, 104) with at least one cooling channel (5, 105) is arranged at least between two adjacent battery cells (2, 102).
    公开号:AT511887A1
    申请号:T1308/2011
    申请日:2011-09-12
    公开日:2013-03-15
    发明作者:Harald Dipl Ing Fh Stuetz；Edward P Yankoski；Mauro Aiolfi；Michael Koeroesi
    申请人:Avl List Gmbh；
    IPC主号:
    专利说明:

    1 56240
    The invention relates to a rechargeable battery having at least one battery module with at least one stack of preferably juxtaposed battery cells, having a at least one cooling channel having liquid cooling system, which is in thermal contact with at least one battery cell.
    DE 10 2008 061 755 A1 describes a holding and cooling device for at least one energy storage unit, wherein the holding and cooling device has a plurality of materially secured thereto cooling plates. The cohesive connection is made by soldering or welding the cooling base plate to the cooling plates, so that a metallic connection between the cooling base plate and the cooling plates is formed. To cool the cooling base plate soldered or internal cooling tubes are provided. The problem is the reliable thermal connection of Wärmeableitbleche to the cooling plate.
    The object of the invention is to avoid these disadvantages and to enable the best possible thermal conditioning of the battery cells.
    According to the invention this is achieved in that at least between two adjacent battery cells, a cooling channel carrier is arranged with at least one cooling channel, wherein preferably the cooling channel is formed in a meandering manner in the cooling channel carrier between an inlet and an outlet. The inlet and outlet of each cooling channel carrier is fluidly connected to an inlet collection channel and an outlet collection channel, respectively, which extends transversely to the plane of the cooling channel carrier over the entire length of the battery module. The cooling channels of at least two cooling channel carriers are fluidly connected to each other through the inlet collecting channel and the outlet collecting channel.
    A particularly effective cooling is achieved if the cooling channel of at least one cooling channel carrier has a plurality of trains arranged substantially parallel to each other, wherein the distance between at least two adjacent trains in the region of an upper half of the cooling channel carrier is less than in the region of a lower half of the cooling channel carrier. 2
    To allow easy production; each of the cooling channel supports consists of at least two parts fixedly connected to one another, the cooling channel being formed in at least a first part. The cooling channel can also be formed in both parts.
    At least one cooling channel carrier can be formed by a cooling plate arranged between two battery cells. The cooling channel carrier can be made of metal, for example stamped aluminum sheet, wherein preferably at least part of the cooling channel carrier may consist of sheet metal, and wherein in at least a portion of the cooling channel carrier, preferably in both parts, a cooling channel may be formed by a Blechumformvorgang.
    Alternatively, it is also possible that at least a part of the cooling channel carrier made of plastic, preferably of plastic injection, consists, wherein preferably the cooling channel is molded in the plastic. It is particularly advantageous if a first part of the cooling channel carrier is formed by a molded part, in which the cooling channel is formed, and that a second part of the cooling channel carrier is formed by a film. A thin, electrically insulating film can be applied to the cell carriers by laser welding, for example, which separates the cooling medium from the cell housing. As a result, further sealing devices, such as sealing lips, can be dispensed with.
    The two parts of the cooling channel carrier can be tightly connected by gluing, soldering or welding, preferably laser welding.
    In a further embodiment of the invention it can be provided that the inlet collecting channel and / or the outlet collecting channel is formed by at least two pipe parts which can be plugged into one another, wherein preferably each tube part is preferably fixedly connected to a cooling channel carrier.
    It is preferably provided that the battery cells and the cooling channel carrier are inserted into a cell carrier housing, wherein preferably the cell carrier housing consists of an upper part and a lower part.
    A quick and effective assembly can be achieved if the upper and lower cell carrier housing and the cooling channel carrier form-locking and 3 frictionally connected with each other * *::::0 * * * * * two cooling channel carriers * * ··· »« · · · At least one, preferably two battery cells are arranged.
    The cell carrier, which serves as a structural element for the battery module, thus also includes parts of the cooling system. The cooling channels are formed by depressions in the cooling channel carrier and are arranged directly on the side walls of the battery cells.
    A particularly good conditioning of the battery cells is obtained when the cooling channel carrier has cooling channels on both sides of a main plane of the cooling channel carrier, wherein at least one connecting opening for the flow connection of the two cooling channels is preferably arranged in the carrier wall.
    The invention will be explained in more detail below with reference to FIG.
    1 shows a battery module according to the invention in a first embodiment in an oblique view, Fig. 2 shows the battery module in a section along the line II-II in Fig. 1, Fig. 3 a cooling channel carrier of this battery module in an oblique view, Fig. 4 the 5 shows the cooling channel carrier in a front view, FIG. 6 shows the cooling channel carrier in a section along the line VI - VI in FIG. 5, FIG. 7 shows a battery module according to the invention in a second embodiment in an oblique view, FIG. 8 shows this battery module in a section according to the line VIII-VIII in FIG. 7, FIG. 9 shows a cooling channel carrier of this battery module in an oblique view, FIG. 10 shows the battery module in a section along the line XX in FIG. 8, FIG. 11 shows the battery module in a section analogous to FIG. 8 with removed cooling channel carrier, FIG. 12 shows a fastening device for two adjacent battery modules in a Schn itt in the battery cell level and Fig. 13, this fastening device in an oblique view.
    1 to 6 show a battery module 1 of a rechargeable battery for an electrically operated vehicle, wherein the battery module 1 has a stack la of juxtaposed battery cells 2, which are arranged in a housing 3. Between each two adjacent battery cells 2, a cooling channel carrier 4 with molded cooling channels 5 is arranged, with each cooling channel 5 between an inlet 6 and an outlet 7 in the 4 cooling channel carrier 4 meandering in accordance with the invention 5a trains. The • i ·· * * * * * * * *
    Distance of the trains 5a is greater in a lower region 4 'of the cooling channel carrier 4 than in an upper region 4 ". If appropriate, the battery module 1 can also have a plurality of juxtaposed batches la of battery cells 2.
    The battery cells 2 are arranged in a frame-shaped cell carrier 8 for receiving one or two battery cells 2, wherein the existing plastic, for example, designed as a plastic injection molded cell carrier 8 in this example, the cooling channel carrier 4 is formed. The cooling channel carrier 4 consists of a first part 4a with molded cooling channels 5 on both sides of a arranged in a main plane ε support wall 16, and a second part 4b, which is formed by a film 9. The cooling channels 5 formed openly into the first part 4a are covered by the electrically insulating film 9, the film 9 being firmly and sealingly connected to the first part 4a of the cooling channel carrier 4, for example by laser welding. The film 9 separates the cooling medium from the battery cells 2. This can be dispensed with further sealing means. The welding areas are designated by reference numeral 10. In the cooling channel carrier 4 connecting openings 11 are provided on each side to allow a coolant transfer. The cooling channels 5 are formed on both sides of the cooling channel carrier 4 and covered on both sides by a respective film 9.
    The stack la on cell carriers 8 with battery cells 2 is held together by a clamping band 15 together.
    The inlet 6 of each cooling channel 5 communicates with an inlet collecting channel 12, the outlet 7 with an outlet collecting channel 13 in connection. Entry and exit collection channels 12, 13 are formed in the cell carrier 8 transversely to the main plane ε of the cooling channel carrier 4. In the case of a plurality of juxtaposed stacks 1a, the inlet and outlet collecting channels 12, 13 can be arranged in the region of a median plane between the two stacks la of the battery module 1 and interconnect the cooling channels 5 of all the cooling channel carriers 4.
    The thin film 9 has the advantage that virtually no additional space requirement is required and that nevertheless the battery cell case 3 is separated from the coolant (especially electrically). With the arrangement described can be found with a minimum number of components Auslangen. The number of 5 5 * * *
    Battery cells 2 within a BattEriemopuls l * kpnji in a simple manner to the
    M · »* ·« «# I» I be adapted to the respective requirements.
    Since the cell case 3 does not need to be electrically de-energized, a standard vehicle coolant (for example, glycol / water) may be used due to electrical isolation. The laser-welded blockages 10 a, 10 b, 10 c of the welding regions 10 prevent bypass flows of the coolant within the flow volume of a cooling channel carrier 4.
    The film 9 may consist of a thermally conductive, but electrically insulating plastic. As an alternative to laser welding, the film 9 can also be applied by means of heating element welding or radiation welding.
    The weld also has the advantage that the tolerances of the cell sidewalls can be more inaccurate without causing coolant leakage.
    Additional safety against leaks can be achieved if the outermost weld is doubled.
    The cell carriers 8 can be embodied as identical parts, whereby the number of cells within a battery module 1 can be easily scaled.
    Through the connection opening 11 between arranged on different sides of the cooling channel carrier 4 cooling channels 5, the wall thickness can be reduced.
    The outer sides of the frames 8a of the cell carriers 8 form the thermally insulating outer wall of the battery module 1.
    FIGS. 7 to 13 show a second embodiment of a battery module 101 designed according to the invention with a housing 103 in which at least one stack 101a of battery cells 102 are arranged. The battery cells 102 are inserted into a cell carrier housing 108, which cell carrier housing 108 has a lower housing part 103a. The stack 101a is closed at the top by an upper housing part 103b and a housing cover 116. The battery cells 102 may each be arranged in pairs in the stack 101a. Between two battery cells 102 or between adjacent pairs of 6
    Battery cells 102 are each arranged in a cooling channel carrier 104, which is formed by a cooling plate 109 in the present exemplary embodiment. The cooling plate 109 is formed in two parts and has a first part 104a and a second part 104b, wherein the two parts 104a, 104b made of metal, in particular aluminum sheet, in which cooling channels 105 are formed. The cooling channels 105 have a meander-like shape, with the features 105a in the lower region 104 'of the cooling plate 109 spaced further apart from each other than in the upper region 104 " the cooling plate 109. The cooling channels 105 extend within the cooling plate 109 between an inlet 106 and an outlet 107. The cooling channels 105 can be formed by stamping, casting, deep drawing or the like in at least one of the two parts 104a, 104b of the cooling plate 109 and manufactured low become. The two parts 104a, 104b may be welded, glued or soldered together.
    Transverse to the cooling plates 109 extend in the region of the median plane ß inlet and outlet collection channels 112, 113, which are flow-connected to the inlets 106 and the outlets 107 of the cooling channels 105. The inlet and outlet collecting channels 112, 113 are each formed by plug-in tube segments 112a, 113a on both sides of the main plane ε, which are arranged transversely to the cooling plate 109 and fixedly connected thereto. By plugging together the tube segments 112a, 113a of all the cooling plates 109, the battery module 101 thus forms transversely penetrating inlet and outlet collection channels 112, 113.
    Further, cooling plates 109 are respectively disposed between the outer battery cells 102 and the side pressure plates 117. In at least one outer pressure plate 117, inlet ports 112b and outlet ports 113b formed by end-side tube segments 112a, 113a are arranged.
    Between two assembled tube parts 112a, 113a, a sealing element 121 can be arranged in each case.
    The coolant flows from the inlet port 112b coming through the inlet collection channel 112 and passes through inlets 106 of the cooling plates 109 in the cooling channels 105. After flowing through the cooling channels 105 between the battery cells 102, the coolant exits through outlets 107 from the cooling channels 105 and is discharged through outlet collection channels 113 Cooling circuit returned. 7
    The lower housing part 103a and cfear upper Qehaugeteil 103b, as well as the * · «4 M« · * * · cooling plates 109 are held by clamping screws 118 and the lateral stretch ceiling! 117 compressed. The lower housing part 103a and the upper housing part are positively connected to the cooling plates 109 via the clamping screws 118. In addition, optionally at least one tension band can be used analogously to FIG. 1.
    Lower and upper housing parts 103a, 103b, as well as the outer edges 109a of the cooling plates 109 form the lateral outer surface of the battery module 101. As shown in FIGS. 12 and 13, two battery modules 101 can be attached together via fastening screws 119 and hold-down 120 to a substrate be attached.
    The coolant can be used both for cooling and for heating the battery module 1, 101.
    权利要求:
    Claims (17)
    [1]
    8 * * c * * »#» · «· · t t · · · · · · ·» »» # # # # # # # # # # # # A rechargeable battery having at least one battery module (1, 101) with at least one stack (1a, 101a) of preferably adjacent battery lines (2, 102), with a liquid cooling system having at least one cooling channel (5, 105) a battery cell (2, 102) is in thermal contact, characterized in that at least between two adjacent battery cells (2, 102) a cooling channel carrier (4, 104) with at least one cooling channel (5, 105) is arranged,
    [2]
    2. Battery according to claim 1, characterized in that the cooling channel (5) in a meandering manner in the cooling channel carrier (4, 104) between an inlet (6, 106) and an outlet (7, 107) is formed,
    [3]
    3. Battery according to claim 2, characterized in that the inlet (6, 106) with a transversely to the cooling channel carrier (4, 104) arranged inlet collecting channel (12, 112) and the outlet (7, 107) with a transverse to the cooling channel carrier (4 , 104), wherein the cooling channels (5, 105) of at least two cooling channel carriers (4, 104) through the inlet collecting channel (12, 112) and the outlet collecting channel (13, 113) are fluidly connected to each other.
    [4]
    4. Battery according to one of claims 1 to 3, characterized in that each cooling channel carrier (4, 104) consists of at least two firmly connected parts (4a, 4b, 104a, 104b), wherein in at least a first part (4a, 104a ) of the cooling channel (5, 105) is formed.
    [5]
    5. Battery according to one of claims 1 to 4, characterized in that the cooling channel (5, 105) is arranged in two parts.
    [6]
    6. Battery according to one of claims 1 to 5, characterized in that the cooling channel (5, 105) at least one cooling channel carrier (4, 104) has a plurality of substantially mutually parallel trains (5a, 105a), wherein the distance of at least two adjacent Trains (5a, 105a) in the region (4 ", 104") of an upper half of the cooling channel carrier (4, 104) 9 are smaller than in the region (41; li) 4M] t of a central half of the ♦ · »» * * * · * # * * · Cooling channel carrier (4, 104).
    [7]
    7. Battery according to one of claims 1 to 6, characterized in that at least one cooling channel carrier (104) by a between two battery cells (102) arranged cooling plate (109) is formed.
    [8]
    8. Battery according to one of claims 1 to 7, characterized in that the cooling channel carrier (104) at least partially made of metal, preferably of aluminum.
    [9]
    9. Battery according to one of claims 1 to 8, characterized in that at least part (104a, 104b) of the cooling channel carrier (104) consists of sheet metal, wherein in at least a part (104a, 104b) of the cooling channel carrier (104), preferably in both parts (104a, 104b), a cooling channel (105) is formed by a Blechumformvorgang.
    [10]
    10. Battery according to one of claims 1 to 9, characterized in that at least one cooling channel carrier (4) by at least one battery cell (2) receiving cell carrier (8) is formed, wherein preferably the cell carrier (8) has a frame (8a) for Receiving the battery cell (2).
    [11]
    11. Battery according to one of claims 1 to 10, characterized in that at least a part (4a) of the cooling channel carrier (4) made of plastic, preferably of plastic injection, consists, wherein preferably the cooling channel (5) is formed in the plastic.
    [12]
    12. Battery according to one of claims 1 to 11, characterized in that a first part (4a) of the cooling channel carrier (4) is formed by a molded part, in which the cooling channel (5) is formed, and that a second part (4b) the cooling channel carrier (4) by a, preferably electrically insulating, film (9) is formed.
    [13]
    13. Battery according to one of claims 1 to 12, characterized in that the two parts (4a, 4b, 104a, 104b) of the cooling channel carrier (4, 104) 10th

    are connected.
    [14]
    14. Battery according to one of claims 1 to 13, characterized in that the inlet collecting channel (12, 112) and / or the outlet collecting channel (13, 113) is formed by a plurality of plug-in each tube segments (112a, 113a), preferably at least one Pipe segment (112a, 113a) with a cooling channel carrier (104) is firmly connected.
    [15]
    15. Battery according to one of claims 1 to 14, characterized in that the battery cells (102) and the cooling channel carrier (104) are inserted into a cell carrier housing (108), wherein preferably the cell carrier housing (108) has a lower housing part (103 a) and a has upper housing part (103b).
    [16]
    16. Battery according to claim 15, characterized in that the upper and the lower housing part (103a, 103b) and the cooling channel carrier (104) are positively and non-positively connected, wherein between two cooling channel carriers (104) each have at least one, preferably two battery cells ( 102) are arranged.
    [17]
    17. Battery according to one of claims 1 to 16, characterized in that the cooling channel carrier (4; 104) on both sides of a main plane (ε) of the cooling channel carrier (4; 104) cooling channels (5; 105), wherein preferably in the support wall (16 ) is arranged at least one connection opening (11) for the flow connection of the two cooling channels (5).

    2011 09 12 Fu / St
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    法律状态:
    优先权:
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    ATA1308/2011A|AT511887B1|2011-09-12|2011-09-12|RECHARGEABLE BATTERY|ATA1308/2011A| AT511887B1|2011-09-12|2011-09-12|RECHARGEABLE BATTERY|
    PCT/EP2012/067684| WO2013037742A1|2011-09-12|2012-09-11|Rechargeable battery|
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