DE19810746B4 - Circuit board with a circuit for monitoring a multi-cell accumulator battery - Google Patents

Circuit board with a circuit for monitoring a multi-cell accumulator battery Download PDF

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Publication number
DE19810746B4
DE19810746B4 DE1998110746 DE19810746A DE19810746B4 DE 19810746 B4 DE19810746 B4 DE 19810746B4 DE 1998110746 DE1998110746 DE 1998110746 DE 19810746 A DE19810746 A DE 19810746A DE 19810746 B4 DE19810746 B4 DE 19810746B4
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Prior art keywords
board
cells
cell
segments
circuit
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Expired - Fee Related
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DE1998110746
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German (de)
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DE19810746A1 (en
Inventor
Thomas Dr. Brohm
Georg Enkirch
Edgar Schachler
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Clarios Technology and Recycling GmbH
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VARTA Automotive Systems GmbH
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M10/4257—Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/519—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising printed circuit boards [PCB]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/66—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells
    • H01M10/667—Heat-exchange relationships between the cells and other systems, e.g. central heating systems or fuel cells the system being an electronic component, e.g. a CPU, an inverter or a capacitor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/42—Grouping of primary cells into batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
    • H02J7/0014—Circuits for equalisation of charge between batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

Platine mit einer Schaltung zur Überwachung einer mehrzelligen Akkumulatorenbatterie, deren Zellen und Polanschlüsse sich in einer Ebene befinden, dadurch gekennzeichnet, dass die Platine (1) durch Einschnitte (2) in Segmente unterteilt ist und durch Abtrennung von Segmenten (3) an das Batteriemodul anpassbar ist, die einzelnen Zellen (8) zugeordnet und an Polanschlusskontakten (4) mit deren Polanschlüssen (10) verbunden sind, wobei auf den Segmenten (3) ein Abgriff für die Temperatur und die Spannung der Zellen vorhanden ist und mindestens ein Segment (3) Datenleitungen zu gemeinsamen Ein- und Ausgängen (5) eines Datenbusses besitzt.circuit board with a circuit for monitoring a multi-cell battery, their cells and Polanschlüsse themselves located in a plane, characterized in that the board (1) is divided into segments by cuts (2) and by separation of segments (3) to the battery module is customizable, the individual Assigned cells (8) and at Polanschlusskontakten (4) with their pole terminals (10), wherein on the segments (3) a tap for the temperature and the voltage of the cells is present and at least one segment (3) Data lines to common inputs and outputs (5) of a data bus has.

Figure 00000001
Figure 00000001

Description

Die Erfindung betrifft eine Platine mit einer Schaltung zur Überwachung einer mehrzelligen Akkumulatorenbatterie, deren Zellen und Polanschlüsse sich in einer Ebene befinden.The The invention relates to a circuit board with a circuit for monitoring a multi-cell battery, their cells and Polanschlüsse themselves to be in one plane.

Durch Zellenverbinder sind die Zellenpole der einzelnen Zellen in der Weise miteinander elektrisch verbunden, daß die Zellen eine Batterie mit gemeinsamen Endpolen bilden. Üblicherweise werden die Einzelzellen in Serie geschaltet, d. h., daß der positive Pol einer Zelle mit dem negativen Pol der nächsten Zelle verbunden wird.By Cell connectors are the cell poles of the individual cells in the cell Manner electrically connected to each other, that the cells are a battery form with common end poles. Usually, the single cells connected in series, d. h., That the positive pole of a cell with the negative pole of the next cell is connected.

Vorrangiges Anwendungsgebiet von Batterien der vorgenannten Art ist die Elektrotraktion. Die Zellen der Batterie sind bei ihrer Verwendung in einem Elektrostraßenfahrzeug einer starken Zyklenbelastung ausgesetzt, wobei schon geringe Fertigungs- oder Temperaturabweichungen der Zellen untereinander deren Lade- und Entladeverhalten beeinflussen. Um ein Auseinanderlaufen der Leistungsfähigkeit der Einzelzellen und eine damit verbundene Minderung der Leistungsfähigkeit der gesamten Batterie zu verhindern, schlägt das Dokument EP 524 377 einen Zellenverbinder vor, der zur Überwachung des Betriebszustandes der Batterie mit einer Platine versehen ist, auf der sich eine Meß- und Auswerteschaltung befindet. Die bekannte Überwachungsvorrichtung soll vorzugsweise so an einer Batterie angeordnet werden, daß sich links und rechts von ihr gleichviele Zellen befinden, so daß die gesamte Batterie überwacht und ihre Ladung gesteuert werden kann.Priority application of batteries of the aforementioned type is the electric traction. When used in an electric road vehicle, the cells of the battery are exposed to a high cycle load, with even slight manufacturing or temperature deviations of the cells influencing their charging and discharging behavior. In order to prevent divergence of the efficiency of the individual cells and a concomitant reduction in the performance of the entire battery, the document fails EP 524,377 a cell connector, which is provided for monitoring the operating state of the battery with a circuit board on which a measuring and evaluation circuit is located. The known monitoring device should preferably be arranged on a battery that there are the same number of cells to the left and right of her, so that the entire battery can be monitored and their charge can be controlled.

Weiterhin sind aus den Dokumenten DE 4132229 und DE 19504629 Verfahren und Vorrichtungen bekannt, die die Feststellung von Ladungsunterschieden zwischen den einzelnen Zellen und deren Ausgleich gestatten. Dazu werden Zellengruppen oder alle Einzelzellen mit Leitungen für die Spannungsmessung, Stromleitungen für den Ladungsausgleich sowie Temperatursensoren versehen und mit einer zentralen Batterieüberwachungseinheit verknüpft. Insgesamt ergibt sich daraus eine extreme Komplexität der Verkabelung und eine sehr hohe Anzahl notwendiger Kontaktstellen, die zu einer Störanfälligkeit der Batterieüberwachung führen. Insbesondere bei Lithium-Ionen-Akkumulatoren, die durch Überladung oder Tiefentladungen irreversibel geschädigt werden können, ist eine sichere Überwachung des Ladezustandes der Einzelzellen notwendig.Furthermore, from the documents DE 4132229 and DE 19504629 Methods and devices are known which allow the detection of differences in charge between the individual cells and their compensation. For this cell groups or all single cells are provided with lines for voltage measurement, power lines for charge equalization and temperature sensors and linked to a central battery monitoring unit. Overall, this results in an extreme complexity of the wiring and a very high number of necessary contact points, which lead to a susceptibility of the battery monitoring. Especially with lithium-ion batteries that can be irreversibly damaged by overcharging or deep discharges, a reliable monitoring of the state of charge of the individual cells is necessary.

In der DE 195 45 883 A1 ist eine Batterie mit mehreren hintereinander geschalteten Einzelzellen offenbart, bei der Einzelzellenmodule mit einer Schaltungsanordnung zur Batterieüberwachung und Ladungssteuerung vorgesehen sind. Die Bauteile der Einzelzellenmodule sind auf einer Leiterplatte pro Batterie-Einzelzelle angeordnet. Die Kommunikation der Einzelzellenmodule mit einer Zentraleinheit erfolgt über die als modulierter Feldbus ausgestaltete Stromleitung.In the DE 195 45 883 A1 discloses a battery with a plurality of individual cells connected in series, are provided in the single cell modules with a circuit arrangement for battery monitoring and charge control. The components of the single cell modules are arranged on a printed circuit board per battery single cell. The communication of the single cell modules with a central unit via the designed as a modulated field bus power line.

In der EP 0 413 045 A1 ist eine elektrische Leiterplatte offenbart, die streifenförmig ausgebildet ist und Solltrennzonen hat. Die Ansteuerung der Einzelschaltungen pro Segment erfolgt über Anschlusskontakte, so dass die einzelnen Segmente der Leiterplatte nachteilig aufwendig verlötet werden müssen.In the EP 0 413 045 A1 is disclosed an electrical circuit board which is strip-shaped and has predetermined separation zones. The control of the individual circuits per segment via terminal contacts, so that the individual segments of the circuit board must be disadvantageously expensive soldered.

Die Erfindung hat sich die Aufgabe gestellt, eine Platine mit einer Schaltung zur Überwachung einer mehrzelligen Akkumulatorenbatterie anzugeben, die den Aufwand für die elektrische Verbindung zwischen der Überwachungselektronik und den Zellen sowie zwischen der Überwachungselektronik und einer zentralen Steuereinheit auf ein Minimum reduziert und damit die Störanfälligkeit vermindert.The Invention has set itself the task of a circuit board with a Circuit for monitoring indicate a multi-cell accumulator battery, the effort for the electrical connection between the monitoring electronics and the Cells and between the monitoring electronics and a central control unit to a minimum and thus the susceptibility to interference reduced.

Erfindungsgemäß wird die Aufgabe durch eine Platine gelöst, die gattungsgemäß im Anspruch 1 angegeben ist und die die dort angegebenen Merkmale besitzt. Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen 2 bis 9 dargelegt.According to the invention Task solved by a board, the generic in claim 1 is specified and has the features specified therein. Further advantageous embodiments of the invention are in the dependent claims 2 to 9 set forth.

Die Erfindung wird durch eine Platine realisiert, die eine Anzahl von Kontaktstellen enthält, welche durch Aufstecken und Fixieren der Platine ohne zusätzliche Kabel direkt mit den Polanschlüssen der zu überwachenden Zellen verbunden wird. Zur Temperaturmessung an den Zellen sind auf der Platine Wärmeleitstrecken vorgesehen, welche die Temperatur der Zellenoberfläche oder eines der Zellenpole zu einem auf der Platine angebrachten Temperatursensor leiten. Damit entfallen alle Kabelverbindungen zwischen den zu überwachenden Zellen und der Überwachungselektronik, welche ebenfalls auf der Platine angeordnet ist. Auf einzelnen Segmenten kann die Meß- und Steuerelektronik für mehrere Zellen angeordnet sein. Vorzugsweise erfolgt dieses auf den mittleren Segmenten, so daß eine Platine für ein fünfzelliges Batteriemodul durch Abtrennung eines oder beider Randsegmente auch für ein vierzelliges oder dreizelliges Batteriemodul verwendet werden kann.The The invention is realized by a board comprising a number of Contains contact points, which by attaching and fixing the board without additional Cable directly to the pole terminals the one to be monitored Cells is connected. For temperature measurement on the cells are on the board heat transfer lines provided the temperature of the cell surface or one of the cell poles to a mounted on the board temperature sensor conduct. This eliminates all cable connections between the monitored Cells and the monitoring electronics, which is also arranged on the board. On individual segments can the measuring and control electronics for several cells can be arranged. Preferably, this is done on the middle segments, so that one Board for a five-celled one Battery module by separating one or both edge segments also for a four-cell or three-cell battery module can be used.

Die Platine besitzt vorzugsweise weitere Durchbrüche für Berstmembranöffnungen und/oder Befüllstutzen der Zellen. Sie ist vorzugsweise aus einem flexiblen Material gefertigt, welches Verschiebungen der einzelnen Zellen eines Batteriemoduls untereinander im mm-Bereich gestattet. In einer weiteren Ausgestaltung der Erfindung wird die Platine durch flexible Zellenverbinder an den Polanschlüssen der Zellen befestigt, wobei die Zellenverbinder vorzugsweise auch in die Platine integriert sind. In einer bevorzugten Ausgestaltung der Erfindung stellt die Platine gleichzeitig den Deckel der Akkumulatorenbatterie dar.The board preferably has further openings for burst membrane openings and / or filling nozzles of the cells. It is preferably made of a flexible material which allows displacements of the individual cells of a battery module with each other in the mm range. In a further embodiment of the invention, the board is attached by flexible cell connectors to the pole terminals of the cells, wherein the cell connectors are preferably also integrated into the board. In a preferred embodiment of the invention provides the board at the same time is the lid of the accumulator battery.

Für die Verbindung der Platine mit anderen Geräten, beispielsweise mit der Überwachungselektronik weiterer Batterien, die insgesamt ein Batteriemodul bilden bzw. mit einem für ein Batteriemodul zuständiges zentrales Batteriemanagementsystem ist die Platine mit einem Ein- und Ausgang für einen Datenbus ausgerüstet. Vorzugsweise wird die Platine in Form einer gedruckten Schaltung realisiert.For the connection the board with other devices, for example, with the monitoring electronics further batteries, which together form a battery module or with a for a battery module in charge central battery management system is the board with a and exit for equipped with a data bus. Preferably, the board is in the form of a printed circuit realized.

Die Erfindung ist anhand von 4 Figuren dargestellt.The The invention is illustrated by 4 figures.

Es zeigen: 1 – eine Platine für eine Batterie bestehend aus fünf prismatischen Zellen,Show it: 1 A circuit board for a battery consisting of five prismatic cells,

2 – die Explosionsdarstellung eines fünfzelligen Batteriemoduls mit prismatischen Zellen, 2 The exploded view of a five-cell battery module with prismatic cells,

3 – eine Batterie, bei der zwei erfindungsgemäße Platinen für jeweils fünf prismatischen Zellen verwendet werden und 3 - A battery in which two boards according to the invention are used for every five prismatic cells and

4 – eine Platine für eine Batterie bestehend aus sechs Rundzellen. 4 - A board for a battery consisting of six round cells.

Beispiel 1example 1

Die in 1 dargestellte Platine 1 besitzt eine Schaltung zur Überwachung von fünf prismatischen Zellen. Die auf die Platine 1 gedruckte Schaltung enthält für jede der zu überwachenden Zellen durch Einschnitte 2 getrennte Segmente 3, die durch Auflegen und Fixieren der Platine 1 an den Polanschlußkontakten 4 mit den jeweiligen Polanschlüssen der Zellen verbunden werden. Die Platine 1 enthält weiterhin Ein- und Ausgänge 5 für einen Datenbus, der die Verbindung zu anderen Batterien oder zu einer zentralen Auswerteelektronik herstellt. Die Platine 1 weist weiterhin Durchbrüche 6, 7 für Berstöffnungen und Befüllstutzen der Zellen auf.In the 1 illustrated board 1 has a circuit for monitoring five prismatic cells. The on the board 1 printed circuit contains for each of the cells to be monitored by incisions 2 separate segments 3 by laying and fixing the board 1 at the pole terminal contacts 4 be connected to the respective pole terminals of the cells. The board 1 also contains inputs and outputs 5 for a data bus that connects to other batteries or to a central transmitter. The board 1 continues to show breakthroughs 6 . 7 for bursting openings and filling nozzles of the cells.

2 zeigt die Explosionsdarstellung einer aus fünf prismatischen Zellen bestehenden Batterie. Die Zellen 8 sind in einem Trog 9 angeordnet. Die Platine 1 erstreckt sich oberhalb der Zellen 8 und wird an den Polanschlußkontakten 4 auf die Polanschlüsse 10 aufgesteckt sowie mit den Zellenverbindern 11 durch die Verschraubungen 12 befestigt. Die Platine wird von einem Deckel 13 abgedeckt, der Durchgänge für die Batterieanschlüsse 14 und den Datenbus 15 besitzt. 2 shows the exploded view of a battery consisting of five prismatic cells. The cells 8th are in a trough 9 arranged. The board 1 extends above the cells 8th and will be at the Polanschlußkontakten 4 on the pole terminals 10 attached and with the cell connectors 11 through the glands 12 attached. The board comes from a lid 13 Covered, the passages for the battery connections 14 and the data bus 15 has.

Beispiel 2Example 2

3 zeigt eine Lithium-Ionen-Batterie die aus 10 prismatischen Zellen 8 mit einem Energieinhalt von jeweils etwa 0,25 kWh besteht. Die Zellen 8 sind stehend nebeneinander angeordnet und durch Glasfasermatten 16, Seitenplatten 17 und Honigwabenplatten 18 zu einer Batterie zusammengefaßt. Unter den Zellen 8 ist einen elektrische Isolationsschicht 19 und ein Wärmetauscher 20 angeordnet. Die Zellen 8 sind in Serie miteinander verschaltet und werden einzeln elektronisch überwacht. Dazu werden die einzelnen Zellenspannungen und die Polanschlußtemperaturen gemessen. Die Elektronik zur Spannungs- und Temperaturmessung sowie zuschaltbare parallele Widerstände zur Durchführung eines Ladeausgleichs sind auf zwei Platinen 1 untergebracht. Für die Temperaturmessung gehen von den Polanschlußkontakten 4 der Platine 1 Wärmeleitstrecken ab, die die Polanschlußtemperaturen zu den in die Schaltung integrierten Temperatursensoren leiten. Die Platine 1 wird von oben auf die Polanschlüsse 10 gesteckt. Anschließend werden die (hier nicht dargestellten) Zellenverbinder 11 aufgesetzt und mit den (hier nicht dargestellten) Verschraubungen 12 auf den Polanschlüssen 10 fixiert. Die (hier nicht dargestellten) Ein- und Ausgänge 5 der Platine 1 werden an einen Datenbus angeschlossen, der die Batterie mit weiteren Batterien und einem zentralem Batteriemanagementsystem verbindet. 3 For example, a lithium-ion battery is made up of 10 prismatic cells 8th with an energy content of about 0.25 kWh each. The cells 8th are arranged standing next to each other and through fiberglass mats 16 , Side plates 17 and honeycomb plates 18 combined to a battery. Under the cells 8th is an electrical insulation layer 19 and a heat exchanger 20 arranged. The cells 8th are interconnected in series and are individually monitored electronically. For this purpose, the individual cell voltages and the pole connection temperatures are measured. The electronics for voltage and temperature measurement as well as connectable parallel resistors to carry out a charge balance are on two boards 1 accommodated. For the temperature measurement go from the Polanschlußkontakten 4 the board 1 Thermal conduction from which conduct the Polanschlußtemperaturen to the temperature sensors integrated in the circuit. The board 1 is from the top of the pole terminals 10 plugged. Subsequently, the (not shown here) cell connectors 11 put on and with the (not shown here) glands 12 on the pole terminals 10 fixed. The inputs and outputs (not shown here) 5 the board 1 are connected to a data bus that connects the battery to other batteries and a centralized battery management system.

Beispiel 3Example 3

4 zeigt eine Platine 1 für eine Lithium-Ionen-Batterie bestehend aus 6 Rundzellen mit einem Energieinhalt von jeweils 0,3 kWh. Die Zellen sind in Paaren angeordnet. Die Polanschlußkontakte 4 sind auf durch Einschnitte 2 getrennten Segmenten 3 angeordnet. Die Zellen sind dabei in Serie miteinander verschaltet und werden jeweils von den auf den Segmenten 3 sich befindenden Schaltungen einzeln überwacht. Dazu werden die einzelnen Zellenspannungen und Polanschlußtemperaturen gemessen. Die Platine 1 wird auf die Polanschlüsse der Zellen aufgesteckt und an ihnen fixiert. Die Verbindung der Platine 1 mit dem nicht dargestellten Batteriemanagement erfolgt mit einem Datenbus über die Ein- und Ausgänge 5. Die Platine 1 besitzt weiterhin Durchbrüche 6, 7 für Berstöffnungen und Befüllstutzen der Zellen. 4 shows a board 1 for a lithium-ion battery consisting of 6 round cells with an energy content of 0.3 kWh each. The cells are arranged in pairs. The pole terminal contacts 4 are on through cuts 2 separate segments 3 arranged. The cells are interconnected in series and are each of those on the segments 3 individually monitored circuits. For this, the individual cell voltages and terminal temperatures are measured. The board 1 is attached to the pole terminals of the cells and fixed to them. The connection of the board 1 with the battery management, not shown, takes place with a data bus via the inputs and outputs 5 , The board 1 still has breakthroughs 6 . 7 for bursting openings and filling nozzles of the cells.

Claims (9)

Platine mit einer Schaltung zur Überwachung einer mehrzelligen Akkumulatorenbatterie, deren Zellen und Polanschlüsse sich in einer Ebene befinden, dadurch gekennzeichnet, dass die Platine (1) durch Einschnitte (2) in Segmente unterteilt ist und durch Abtrennung von Segmenten (3) an das Batteriemodul anpassbar ist, die einzelnen Zellen (8) zugeordnet und an Polanschlusskontakten (4) mit deren Polanschlüssen (10) verbunden sind, wobei auf den Segmenten (3) ein Abgriff für die Temperatur und die Spannung der Zellen vorhanden ist und mindestens ein Segment (3) Datenleitungen zu gemeinsamen Ein- und Ausgängen (5) eines Datenbusses besitzt.Circuit board with a circuit for monitoring a multi-cell accumulator battery whose cells and pole terminals are located in one plane, characterized in that the board ( 1 ) through cuts ( 2 ) is divided into segments and by separating segments ( 3 ) is adaptable to the battery module, the individual cells ( 8th ) and to Polanschlusskontakten ( 4 ) with their pole terminals ( 10 ), where on the segments ( 3 ) there is a tap for the temperature and the voltage of the cells and at least one segment ( 3 ) Data lines to common men inputs and outputs ( 5 ) of a data bus. Platine nach Anspruch 1, dadurch gekennzeichnet, daß die Platine (1) zur Bestimmung der einzelnen Zellentemperaturen an mindestens einem Polanschluß (4) jeder Zelle (3) eine Wärmeleitstrecke besitzt, auf der sich ein Temperatursensor befindet.Board according to claim 1, characterized in that the board ( 1 ) for determining the individual cell temperatures at at least one pole terminal ( 4 ) of each cell ( 3 ) has a heat conduction path on which a temperature sensor is located. Platine nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß sich auf den jeweils einer Zelle (8) zugeordneten Segmenten (3) eine Bypass-Schaltung befindet, die ein Teilladen oder Teilentladen jeder einzelnen Zelle (8) gestattet.Circuit board according to claim 1 and / or 2, characterized in that on the respective one cell ( 8th ) associated segments ( 3 ) is a bypass circuit which is a partial load or partial discharge of each individual cell ( 8th ). Platine nach einem oder mehreren der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die einer oder mehreren Zellen (8) zugeordneten Segmente (3) die Mess- und Steuerelektronik für weitere Zellen (8) enthalten.Board according to one or more of claims 1 to 3, characterized in that the one or more cells ( 8th ) associated segments ( 3 ) the measuring and control electronics for further cells ( 8th ) contain. Platine nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Platine (1) Durchbrüche für Polanschlußkontakte (4) und Berstöffnungen (6) und/oder Befüllstutzen (7) der Zellen (8) besitzt.Board according to one or more of claims 1 to 4, characterized in that the board ( 1 ) Breakthroughs for pole terminal contacts ( 4 ) and burst openings ( 6 ) and / or filling nozzle ( 7 ) of the cells ( 8th ) owns. Platine nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Platine (1) aus einem flexiblen Material gefertigt ist, das die Verschiebung der Zellen (8) untereinander im mm-Bereich gestattet.Board according to one or more of claims 1 to 5, characterized in that the board ( 1 ) is made of a flexible material, the displacement of the cells ( 8th ) allowed each other in the mm range. Platine nach Anspruch 6, dadurch gekennzeichnet, daß die Platine (1) durch flexible Zellenverbinder (11) an den Polanschlüssen (10) der Zellen (8) befestigt ist.Board according to claim 6, characterized in that the board ( 1 ) by flexible cell connectors ( 11 ) at the pole terminals ( 10 ) of the cells ( 8th ) is attached. Platine nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Zellenverbinder (11) in die Platine (1) integriert sind.Board according to one or more of claims 1 to 7, characterized in that the cell connectors ( 11 ) into the board ( 1 ) are integrated. Platine nach Anspruch 8, dadurch gekennzeichnet, daß die Platine (1) gleichzeitig den Deckel (13) der Akkumulatorenbatterie bildet.Board according to claim 8, characterized in that the board ( 1 ) simultaneously the lid ( 13 ) of the accumulator battery.
DE1998110746 1998-03-12 1998-03-12 Circuit board with a circuit for monitoring a multi-cell accumulator battery Expired - Fee Related DE19810746B4 (en)

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