• 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:

    公开号:AT510117A1
    申请号:T0112910
    申请日:2010-07-02
    公开日:2012-01-15
    发明作者:Peter Dipl Ing Gollob；Werner Dipl Ing Roessler；Andreas Dipl Ing Pechlaner
    申请人:Oesterreichisches Forschungs Und Pruefzentrum Arsenal Ges M B H；Infineon Technologies Ag；
    IPC主号:
    专利说明:

    1
    The invention relates to a battery module according to the preamble of claim 1. Battery modules according to the invention are used and manufactured in particular in the field of non-network power supply.
    According to the prior art arrangements of battery modules are known, wherein the battery modules each comprise an energy store. The battery modules are connected in series and are supplied by a charging device with a predetermined current. In the course of the charging process, there is the problem that the individual energy storage are charged differently due to the different aging properties and, until the required charging voltage of the overall arrangement is reached, unwanted overloads of individual energy storage can occur.
    For this purpose, an arrangement with a number of energy stores is proposed in the prior art, wherein the output voltage of each of the
    Energy storage is guided to a control unit for controlling a converter. If a predetermined maximum voltage, maximum charge or maximum temperature for an energy store is exceeded, the control unit activates a converter whose primary side is connected in parallel to the energy store. One of the two terminals of the secondary side of the converter is connected to the system ground. The respective other terminal of the secondary side of the converter is connected via a diode to the respective other terminal of the charging device and the other pole of the energy store.
    A disadvantage of the prior art is that in order to dissipate energy from the individual energy stores, two lines each to one of the two ends of the series-connected battery modules are required. There is a large number of cables and labor required to connect them. Especially in the automotive sector, the management of cable harnesses is complicated and expensive. In addition, the cables have a high mechanical stability and high voltage resistance. In mass production, the use of a variety of cables is costly.
    Starting from the prior art, the objective task of creating an easy to be wired battery module, which manages with low external wiring and allows a return of excess energy from the already charged battery modules.
    The invention relates to a battery module comprising an energy store with a positive and a negative terminal. The battery module has a first and a second terminal, a first and a second balancing port, a boost converter having a first and a second converter output and a
    Uncoupling switch on. The energy store is connected with its positive terminal to the first terminal and with its negative terminal to the second terminal. The first converter output is connected to the first balancing port and the second converter output is connected to the second balancing port, wherein the converter is configured to extract energy from the energy storage and provide it in the form of power at its converter outputs. The decoupling switch has its first connection connected to the first compensation connection and its second connection connected to the second compensation connection.
    Through this advantageous circuit, two adjacent battery modules can be connected directly to each other, so that only one cable guide from the first and last of the battery modules in the row is required for charging voltage source. As a result, a considerable amount of required cable is saved over the prior art and the wiring significantly easier. Furthermore, there is the advantage that the total weight or the total mass of the arrangement can be significantly reduced and the costs can be drastically reduced due to the reduced material requirement.
    Advantageous embodiments can be found in the subclaims.
    Advantageously, it can be provided that the converter is designed as a flyback converter. This allows a particularly efficient energy transfer and a simple control and controllability of the converter.
    Another aspect of the invention provides that the converter is connected to the energy storage. This simplifies the removal of energy from the energy storage to the other battery modules.
    Furthermore, it can be provided that the converter has two converter inputs, one of which is connected to the positive terminal, the other to the negative terminal of the energy storage. This allows a particularly simple transmission of energy stored in the energy storage to the other battery modules.
    In addition, it can be provided that the converter has an output switch which is connected with one of its terminals to one of the outputs of the converter. This allows a design of a blocking effect, such that
    Energy transfer only from the energy storage to the outputs of the converter is possible, but not in the opposite direction,
    It can be provided that the output switch is formed by a controlled electronic switch, which is synchronized with the converter. This embodiment enables a switchable energy transfer from the energy store to the outputs of the converter.
    Preferably, it may be provided that the output switch is formed by an output diode, wherein the cathode of the output diode is connected to the first equalizing terminal or the anode of the output diode is connected to the second equalizing terminal. This allows a very simple and durable barrier effect such that energy can only be transferred from the energy store to the outputs of the converter.
    Particularly advantageously, it can be provided that the decoupling switch is formed by a diode whose cathode is preferably connected to the first equalizing connection. As a result of this particularly simple embodiment of the circuit according to the invention, it is possible to regenerate the energy taken from an overcharged energy store simply and without the need for any activation effort.
    Alternatively or in combination it can be provided that the decoupling switch is formed by an electrically controllable switch which is synchronized with the converter. By this measure, the energy recovery can be controlled easily.
    In addition, it can be provided that the converter is controlled by a control unit which monitors the operating state of the battery. This allows the implementation of different charging and Entiadeverfahren.
    It can further be provided that the control unit has a detector for detecting the voltage applied to the energy storage, the present charge or the temperature of the energy store and a Schweilenwertschalter for activating the converter when exceeding a predetermined threshold voltage, threshold charge or Schweilenwerttemperatur.
    These measures enable effective control or regulation of the charging or discharging process.
    Furthermore, the invention relates to an arrangement comprising a plurality of series-connected battery modules according to the invention. It is provided that the first terminal of the battery modules is connected to the second terminal of the respective subsequent battery module and the first equalizing terminal of the battery modules is connected to the second equalizing terminal of each subsequent battery module, wherein the first and second terminals and equalizing terminals at the end of the series circuit lying battery modules make connections of the arrangement.
    It is particularly advantageous that the cable guide is extremely simple and the battery modules are connected by simple cable connections to each other. Two adjacent battery modules only need two connection cables whose length corresponds to the decency between the battery module. Alternatively, the battery modules can also be plugged into each other or clamped together. This results in the advantage that due to the small number of cables used harnesses can be omitted and the total weight or the total mass of the arrangement significantly reduced and the costs can be drastically reduced due to the reduced material requirements.
    Particularly advantageously, it is provided that the first terminal located at the end of the series connection and the first compensating terminal located at the end of the series circuit are connected to one another, optionally via an electrically conductive first connecting element, and the second terminal located at the end of the series circuit and that at the end of the series circuit lying second compensating connection with each other, optionally via an electrically conductive second connecting element, are connected. This allows a particularly effective return of the energy emitted by the energy storage devices to the entirety of the battery modules connected in series.
    Another preferred aspect of the invention provides that the control units of the battery modules are connected to each other, optionally via a bus. As a result, the individual control units can exchange their charge state and, if necessary, transmit to an external charge control unit. There is the possibility of connecting a charge level indicator to the bus, which indicates the charge level of the individual batteries during a charging or discharging process.
    Finally, the invention preferably provides that the control units are connected to a charge control unit, wherein the charge control unit comprises:
    Means for communication with the individual control units, in particular via a bus
    Means for detecting and evaluating the temperature, voltage and charge values determined with the individual control units
    Means for controlling the individual control units and for controlling the converter and
    Means for performing a charge equalization method, wherein based on the determined temperature, voltage and charge values, the transducers are activated and optionally activated.
    By this preferred arrangement, different charging or discharging methods, such as e.g. in the balancing process, be carried out in a simple manner.
    Particularly advantageously, the invention can be used as a starter battery or energy storage in an automobile.
    An embodiment of the invention is illustrated by the following figures not limiting:
    1 shows a circuit according to the invention with a charging unit.
    Fig. 2 shows a circuit according to the prior art.
    FIG. 3 shows the external wiring of the circuit of FIG. 1. FIG.
    Fig. 4 shows the external wiring of the circuit of Fig. 2. In Fig. 1 an embodiment of the invention is shown. The circuit comprises two battery modules 2a, 2b, which are connected to a charging voltage source 1. Each of the battery modules 2a, 2b comprises an energy store 3, for example in the form of a rechargeable battery, a battery or a capacitor, etc. Each of the battery modules 2a, 2b has a first terminal A and a second terminal B. Furthermore, each of the battery modules 2 a, 2 b has a first compensation connection C and a second compensation connection D. The energy store 3 is connected with its positive terminal 31 to the first terminal A and connected to its negative terminal 32 to the second terminal B. Each of the ends of the series connection of
    Energy storage 3 is connected to each one of the poles of the charging voltage source 1 or to a respective terminal of a consumer. In this case, the charging voltage source 1 sets the voltage and polarity required for charging the battery modules 2a, 2b, or impresses a predetermined charging current. When connecting a consumer, a discharge current sets. The energy storage 3 are dargesteilt in the following embodiment as a bipolar energy storage 3.
    Each battery module 2a, 2b further comprises an up-converter 4, which may be designed, for example, as a flyback converter. On the secondary side of the converter 4, a first converter output 4a and a second converter output 4b are provided. The first converter output 4 a is connected to the first compensation circuit C, the second converter output 4 b is connected to the second compensation connection D. In the present case, the converter 4 is designed to take energy from the energy store 3 and to provide it in the form of current at its converter outputs 4a, 4b. The converter 4 is connected to an energy store 3, wherein the converter 4 has two converter inputs 4x, 4y, one of which is connected to the positive terminal 31 of the energy store 3, the other to its negative terminal 32. The converter 4 further has a control input via which the transmission behavior of the converter 4 can be set. In the illustrated preferred embodiment of the invention, the converter 4 comprises a control switch 6 connected to the control input, which causes an interruption of the primary side of the converter 4. If the control switch, for example cyclically controlled, energy is transferred from the energy storage 3 to the outputs of the converter.
    Each battery module 2a, 2b also has a decoupling switch 8. The decoupling switch 8 is connected with its first terminal to the first compensation terminal C and connected with its second terminal to the second compensation terminal D. The decoupling switch 8 is advantageously formed by a diode whose cathode is preferably connected to the first compensation terminal C. Alternatively, however, it can also be provided that the decoupling switch 8 is formed by an electrically controllable switch, which is synchronized with the transducer 4.
    In particular, it is provided in the present exemplary embodiment that the converter 4 has an output switch 7. This is connected with one of its connections to one of the outputs 4a of the converter 4. The output switch 7 is formed by an output diode whose cathode is connected to the first equalization terminal C. Alternatively, it can also be provided that the anode of the
    Balancing diode is connected to the second output terminal D. The output switch 7 may also be formed by an electronic switch which is synchronized with the converter. The respective other terminal of the output switch 7 is electrically conductively connected either to the first compensation terminal C or to the second compensation terminal D.
    Furthermore, each battery module 2a, 2b has a control unit 5, which has two measuring lines, not shown, which are each connected to one of the electrodes of the energy storage device 3 of the respective battery module 2a, 2b. The control unit may be connected or connected to a temperature sensor arranged on the energy store of the respective battery module 2 a, 2 b or to a current measuring device connected in series with the energy store 3. The voltage applied between the two electrodes of the energy accumulator 3 is picked up by the control unit 5 via these inputs and can be used to control the charging process. The control unit 5 is connected via a control output 53 to the control input of the converter 4 and thus controls the switching behavior of the control switch 6 and thus the energy transfer between the energy storage 3 and the converter. 4
    The battery modules 2a, 2b are connected in series. The first terminal A of the battery modules is connected to the second terminal B of each subsequent battery module. The first equalization terminal C of the battery modules is connected to the second equalization terminal D of the respective subsequent battery module. The first and second terminals A, B and equalizing terminals C, D of the battery modules located at the end of the series connection each form the terminals of the arrangement. The first terminal A located at the end of the series connection and the first compensating terminal C located at the end of the series connection are connected to one another via an electrically conductive connecting element. The second terminal B lying at the end of the series connection and the second compensating terminal D lying at the end of the series connection are connected to one another via a further conductive second connecting element. All control units 5 of the battery modules 2a, 2b communicate with one another and with an external charge control unit 20 via a data line 21, in particular a bus, in data connection.
    The charge control unit 20 advantageously comprises the following components:
    Means for communication with the individual control units, in particular via a bus. These may be different drivers and protocol devices for using different bus protocols.
    Means for detecting and evaluating the determined with the individual control units 5 temperature, voltage and charge values. These are receiver units that use the signals transmitted via the bus to determine and make available the respective temperature, voltage and charge values of the individual battery modules. - Means for controlling the individual control units and for controlling the converter. These are, in particular, transmission units which output control signals to the bus, which are received by the control units 5. The control units 5 accordingly control their transducers 4.
    Means for performing a charge equalization method, wherein based on the determined temperature, voltage and charge values, the transducers are activated and optionally activated. Such charging methods are state of the art and are familiar to the person skilled in the art, for example from Dynamic Equalization Techniques for Series Battery Stacks - Telecommunications Energy Conference, INTELEC Conf. Proceedings, pp. 514-521, 1996.
    If appropriate, this charging control unit 20 can also be dispensed with and the charge control can take place decentrally via the individual control units 5.
    The circuit according to the prior art shown in Fig. 2 will be described with reference to the differences from the embodiment of the invention shown in Fig. 1. The circuit comprises a charging voltage source 1 and a number of battery modules 2a ', 2b', whose energy storage devices 3 are connected in series.
    Significant difference between the two circuits is the wiring of the secondary side of the converter 4. It is only a single diode 7 'is provided, which is connected with its anode to an output of the secondary side of the converter 4. The cathodes of the diodes 7 'of the individual battery modules 2 a, 2 b are each connected to the positive pole of the charging voltage source 1. The respective other outputs of the secondary sides 4b of the transducers 4 are connected to the negative pole of the charging voltage source 1. Thus, a bus line is required that must be routed to each of the battery modules. • * t · «♦ Q · * * v« ·
    FIG. 4 shows a modular circuit analogous to FIG. 3. You can see that the cabling of the individual modules is much more complex and significantly more cables are needed.
    权利要求:
    Claims (16)
    [1]
    Claims 1. A battery module comprising - an energy store (3) having a positive and a negative terminal (31, 32), - a first and a second terminal (A, B), - a first and a a second equalizing terminal (C, D), an up-converter (4) having a first and a second converter output (4a, 4b), and a decoupling switch (8), the energy store (3) having its positive terminal (31) connected to the first terminal (A) and its negative terminal connected to the second terminal (B), - wherein the first converter output (4a) is connected to the first compensation terminal (C) and the second converter output (4b) to the second compensation terminal (D ), - wherein the transducer (4) is adapted to take energy from the energy storage (3) and in the form of electricity at its transducer outputs (4a, 4b) provide, and wherein the decoupling switch (8) with its first terminal with the first Balancing port (C) is connected and connected with its second port to the second compensation port (D).
    [2]
    2. Battery module according to claim 1, characterized in that the converter (4) is designed as a flyback converter.
    [3]
    3. Battery module according to claim 1 or 2, characterized in that the converter (4) is connected to the energy store (3).
    [4]
    4. Battery module according to one of claims 1 to 3, characterized in that the transducer (4) has two converter inputs (4x, 4y), one of which to the positive terminal (31), the other to the negative terminal (32) of the Energy storage (3) is connected.
    [5]
    5. Battery module according to one of claims 1 to 4, characterized in that the transducer (4) has an output switch (7) which is connected with one of its terminals to one of the outputs (4a) of the converter (4).
    [6]
    6. Battery module according to claim 5, characterized in that the output switch (7) is formed by a controlled electronic switch, which is synchronized with the transducer (4).
    [7]
    7. Battery module according to claim 5, characterized in that the output switch (7) is formed by an output diode, wherein the cathode of the output diode to the first compensation terminal (C) is connected or the anode of the output diode to the second compensation terminal (D) is connected ,
    [8]
    8. Battery module according to one of claims 1 to 7, characterized in that the decoupling switch (8) is formed by a diode whose cathode is preferably connected to the first equalizing terminal (C) and the anode of the balancing diode is connected to the second compensating terminal (D).
    [9]
    9. Battery mode! according to one of claims 1 to 8, characterized in that the decoupling switch (8) is formed by an electrically controllable switch which is synchronized with the transducer (4).
    [10]
    10. Battery module according to one of claims 1 to 9, characterized in that the converter (4) by a control unit (5) is controlled, which monitors the operating condition of the battery.
    [11]
    11. Battery module according to claim 10, characterized in that the control unit (5) has a detector for detecting the energy store (3) voltage applied, the present charge or the temperature of the energy store (3) and a threshold switch for activating the converter (4). when exceeding a predetermined threshold voltage, threshold charge or threshold temperature.
    [12]
    12. Arrangement comprising a plurality of series-connected battery modules (2a, 2b) according to one of claims 1 to 11, characterized in that the first terminal (A) of the battery modules is connected to the second terminal (B) of the respective subsequent battery module and the first equalizing terminal (C) of the battery modules is connected to the second equalizing terminal (D) of the respective subsequent battery module, the first and second terminals and equalizing terminals (A, B, C, D) of the battery modules terminating in the series circuit forming terminals of the array , 12
    [13]
    13. Arrangement according to claim 12, characterized in that the first terminal (A) located at the end of the series connection and the first compensating terminal (C) located at the end of the series connection are connected to one another, optionally via an electrically conductive first connecting element, and the one at the end the series connection lying second terminal (B) and lying at the end of the series circuit second equalization terminal (D) with each other, optionally via an electrically further conductive second connecting element, are connected,
    [14]
    14. Arrangement according to one of claims 12 or 13, characterized in that the control units (5) of the battery module are connected to each other, optionally via a bus (19),
    [15]
    15. Arrangement according to one of claims 12 to 14, characterized in that the control units (5) are connected to a charge control unit (20), wherein the charge control unit (20) comprises: means for communication with the individual control units (5), in particular via a bus means for detecting and evaluating the temperature, voltage and charge values determined with the individual control units (5), means for controlling the individual control units (5) and for controlling the transducers (4) and means for carrying out a charge equalization method, wherein on basis the determined temperature, voltage and charge values, the converter can be controlled and optionally activated.
    [16]
    16. Use of an arrangement according to one of claims 12 to 15 as a starter battery or energy storage in an automobile. Vienna, July 2, 2010
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    同族专利:
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    引用文献:
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    KR101124800B1|2007-02-09|2012-03-23|한국과학기술원|Charge Equalization Apparatus|FR2973964B1|2011-04-11|2013-05-10|Renault Sa|DEVICE AND METHOD FOR BALANCING CELLS OF A BATTERY|
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    法律状态:
    2015-09-15| PC| Change of the owner|Owner name: AIT AUSTRIAN INSTITUTE OF TECHNOLOGY GMBH, AT Effective date: 20150721 Owner name: INFINEON TECHNOLOGIES AUSTRIA AG, AT Effective date: 20150721 |
    2019-03-15| MM01| Lapse because of not paying annual fees|Effective date: 20180702 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA1129/2010A|AT510117B1|2010-07-02|2010-07-02|BATTERY MODULE|ATA1129/2010A| AT510117B1|2010-07-02|2010-07-02|BATTERY MODULE|
    CN201180033024.1A| CN103081277B|2010-07-02|2011-06-30|Battery module|
    PCT/AT2011/000287| WO2012000007A2|2010-07-02|2011-06-30|Battery module|
    DE201111102237| DE112011102237A5|2010-07-02|2011-06-30|battery module|
    US13/730,253| US9142987B2|2010-07-02|2012-12-28|Battery module with converter and decoupling switch|
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