EP4005011A1 - Monitoring device - Google Patents

Monitoring device

Info

Publication number
EP4005011A1
EP4005011A1 EP20754647.4A EP20754647A EP4005011A1 EP 4005011 A1 EP4005011 A1 EP 4005011A1 EP 20754647 A EP20754647 A EP 20754647A EP 4005011 A1 EP4005011 A1 EP 4005011A1
Authority
EP
European Patent Office
Prior art keywords
control device
housing
closed
closed housing
section
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20754647.4A
Other languages
German (de)
French (fr)
Inventor
Jochen Hantschel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ElringKlinger AG
Original Assignee
ElringKlinger AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ElringKlinger AG filed Critical ElringKlinger AG
Publication of EP4005011A1 publication Critical patent/EP4005011A1/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/202—Air circulating in closed loop within enclosure wherein heat is removed through heat-exchangers
    • 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
    • H01M10/42—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
    • 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
    • H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
    • 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
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M10/6554—Rods or plates
    • 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
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6561—Gases
    • H01M10/6563—Gases with forced flow, e.g. by blowers
    • 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
    • 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
    • H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
    • 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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • 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
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2200/00—Safety devices for primary or secondary batteries
    • H01M2200/10—Temperature sensitive devices
    • H01M2200/103—Fuse
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

Definitions

  • the present invention relates to a control device for a battery storage device.
  • This Bat terie appointment contain as closed units in addition to battery cells or battery modules and elements for the electrical interconnection of these modules also a control device, which is usually arranged in a separate housing section or completely separate housing within the battery storage.
  • a control device is equipped with electronic components, for example battery management system, current measuring shunt, and electromechanical components, for example in the form of contactors, fuses, busbars, connectors, etc.
  • electronic components for example battery management system, current measuring shunt, and electromechanical components, for example in the form of contactors, fuses, busbars, connectors, etc.
  • such a control device is housed in a separate housing section or even an additional closed Ge housing separately from the cells of the battery store for safety reasons.
  • redundant units can be provided in the control device.
  • excessive heating of an electrical fuse requires so-called "derating", i.e. a design for a higher tripping current.
  • the electrical components used must therefore be deliberately oversized in order to take account of the higher temperatures in the event of high loads Alternatively, a higher probability of failure can be accepted.
  • the above-mentioned constructive solution approaches generate a higher space requirement and result in higher costs, provided that the generally tight spatial conditions in a module housing can be implemented at all. A shortened service life also leads to increased costs and reduced reliability and therefore cannot be seriously considered as a solution.
  • the object of the present invention is therefore to create a control device in which a predetermined service life can be reliably achieved without overdimensioning components.
  • a closed housing is formed to form free and / or forced convection through which temperature differences within the housing and also across the control device can be compensated.
  • the invention is therefore essentially based on the knowledge that the formation of heat nests is beneficial in that natural or free convection can hardly develop within the closed housing of the control device.
  • a corresponding design of the closed housing by means of which the formation of free and / or forced convection is made possible, strongly counteracts the formation of pronounced heat pockets. This means that at least temperature differences within the housing are compensated, so that the components can work in normal thermal operation.
  • a support part is formed as the basis of the control device within the closed housing so that this support part along a longitudinal extent or in the longitudinal direction of the housing from a bottom of the closed housing is lifted off as part of a module housing forms a free flow cross-section.
  • an inlet of the free flow cross section forms a direct receptacle for a device fan, which is in particular actively driven and, if necessary, also electrically controlled.
  • an opening is provided between a lower part formed by the support part and an upper part of the closed housing of the control device, which opening is arranged at an end of the support part opposite the device fan. This results in a maximum length of a free flow cross-section available for convection within the closed housing of the control device. This flow path runs almost closed around the support part.
  • a drive from the heat absorbed by convection of the control device is provided through a heat exchanger.
  • the aim is not only to evenly distribute heat loss via the control device, but convectively absorbed heat is also specifically dissipated from the closed housing of the control device.
  • an underside of the free flow cross section is designed directly as a heat exchanger or for passing over a cooling plate of the battery modules of the battery storage unit concerned.
  • the support part is preferably designed as a plastic support in such a way that its support geometry does not only well accommodate, support and support the components mentioned above by way of example can fix, but at the same time also forms a bulkhead between an upper and a lower volume of the closed Ge housing, with the plastic carrier on the side opposite the upper side carrying the due components, openings for air to flow from the lower half of the housing into the upper half Has housing half.
  • these openings are also arranged directly under particularly lossy components, in particular fuses or shunts, for targeted cooling by convection.
  • a directed flow is generated within the entire ge closed housing section. Heat nest formation is effectively avoided.
  • the extended battery module cooling plate By passing over the extended battery module cooling plate, there is a direct heat exchange between the circulated air and the cooling system. Components that are particularly lossy can also be cooled more intensively by means of dedicated discharge openings provided directly under these components. It is even possible to use a plastic housing that is closed all around the control device.
  • a support part in the form of a plastic carrier is created as the basis of the control device and thus as an essential part within the closed housing, the support part
  • a. is designed as an electrically insulating plastic component, preferably as an injection-molded part;
  • d. has a receptacle for a case fan
  • f. has a flow cross-section that is open on an underside to a cooling plate, and extends in the longitudinal direction from one end of the volume to the other end in order to transport an air flow and to enable heat exchange to the cooling plate below .
  • the closed housing of the control device forms with a support part of the type mentioned a system with advantageously minimal housing volume, comprising a lower plastic carrier and air guide plate, an upper plastic plate, electrical components to be cooled, a housing fan mounted on or on the support part and liquid-filled cooling plates, which are provided spread out under the lower plastic support.
  • the support part thus has a be fitted top and an unpopulated bottom, wherein the bottom is designed to be arranged opposite a heat exchanger in an installation position.
  • FIG. 1 a perspective view of part of a battery storage unit with a control unit and a plurality of electrical storage cells
  • Figure 2 a side view of the battery storage of Fi gur 1 and
  • Figure 3 a view of a longitudinal side of Figure 1 in one
  • FIG. 1 shows a perspective view of a part of a battery storage device 1 with a control device 2 and a plurality of electrical storage cells 3.
  • the control unit 2 is physically separated from the storage cells 3 by a module housing 4 in its own housing 5 that is closed with respect to the other battery storage device 1.
  • the closed housing 5 not only components of the electronics, eg an electronic battery management system BM with power semiconductors and current measuring shunts, but also components of the electromechanics eg in the form of contactors, fuses Si, busbars S and connectors.
  • the closed housing 5 is designed to form free and / or forced convection. As a result of the convection, temperature differences within the housing 5 can be compensated for to the extent that all construction parts are operated in normal temperature ranges and can therefore achieve their specified service life. In addition to increased costs, this also effectively saves installation space, which is always very rare.
  • FIG. 2 shows a side view of the battery storage 1 of Figure 1, indicated by arrows of a convection curve within the closed housing 5 of the control device 2.
  • a support part 6 which is a base for the Control device 2 within the closed housing 5 forms, as a mechanical carrier of all components and fixation within the closed housing 5.
  • the support part 6 is designed in the form of a plastic component so that it is along a longitudinal axis or in the longitudinal direction of the housing 5 from a Lifted bottom B of the module housing 4 forms a free flow cross section 7.
  • the support part 6 has formed supports or legs, which are hardly recognizable in the drawing due to the dense assembly of the support part 6 with numerous components of the control device 2 in an installation position, and separates egg NEN upper part oT from one like a bulkhead lower part uT of the volume of the closed housing 5 for the control device 2.
  • the lower part uT now closes a circuit of convection as a free flow cross section 7.
  • a receptacle is at a passage of the free flow cross section 7 provided, on which an electrically actively driven, regulated device fan 8 is arranged.
  • an opening 9 is provided between the lower housing part uT and the upper part oT of the closed housing 5 of the control device 2, which opening is arranged on an end of the support part 6 opposite the device fan 8.
  • a flow can thus develop essentially over an entire longitudinal extension of the closed housing 5.
  • an underside of the free flow cross section 7 is designed directly as a heat exchanger 10 by passing over a cooling plate 11 of the battery modules or electrical storage cells 3.
  • Figure 3 shows a view of a longitudinal side of Figure 1 in a sectional view and underlines the obviously optimized use of the usually.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The present invention relates to a monitoring device (2) for a battery bank (1), which monitoring device is equipped with electronics components, e.g. a battery management system (BM), current-measuring shunt, and electromechanical components, e.g. in the form of contactors, fuses (Si), busbars (S), plug connectors, and is accommodated in a closed housing (4). In order to produce a monitoring device in which a predefined service life can be reliably achieved without oversizing components, according to the invention the closed housing (5) is designed to provide free and/or forced convection, wherein the convection can equalise temperature differences inside the housing (5) and across the monitoring device (2).

Description

Kontrolleinrichtung Control device
Die vorliegende Erfindung betrifft eine Kontrolleinrichtung für einen Batteriespeicher. The present invention relates to a control device for a battery storage device.
Neben stationären Anwendungen als Notstromversorgung und Puf fer für Leistungsspitzen werden große Batteriespeicher heute regelmäßig auch in Elektrofahrzeugen als Ersatz für einen An trieb durch Verbrennungskraftmaschinen eingesetzt. Diese Bat teriespeicher enthalten als geschlossene Einheiten neben Bat teriezellen bzw. Batteriemodulen und Elementen zur elektri schen Verschaltung dieser Module auch eine Kontrolleinrich tung, die meist in einem separaten Gehäuseabschnitt oder davon gänzlich getrennten Gehäuse innerhalb des Batteriespeichers angeordnet ist. Eine derartige Kontrolleinrichtung ist mit Komponenten der Elektronik, z.B. Batteriemanagementsystem, Strommessshunt sowie Komponenten der Elektromechanik, z.B. in Form von Schützen, Sicherungen, Stromschienen, Steckverbindern etc. bestückt. Nach dem Stand der Technik ist eine derartige Kontrolleinrichtung aus Sicherheitsgründen in einem eigenen Gehäuseabschnitt oder gar einem zusätzlichen geschlossenen Ge häuse getrennt von den Zellen des Batteriespeichers unterge bracht. Dabei sind alle vorstehend exemplarisch genannten Kom ponenten darin auf einer Grundplatte bzw. einem Schaltungs- Tragteil aus Kunststoff montiert. Aus Gründen der Hochvoltsi cherheit ist ein solcher Gehäuseabschnitt mit einem eigenen passenden Kunststoffteil berührgeschützt ausgeführt und durch Bildung des zusätzlichen geschlossenen Gehäuses innerhalb ei nes Modulgehäuses und auch gegenüber einer unmittelbaren äuße ren Umgebung abgeschlossen. Dabei sind Batteriespeichersysteme der genannten Art für Elektrofahrzeuge zum Abtransport von Verlustwärme in der Regel wassergekühlt und weisen meist im Bereich des Bodens eines Modulgehäuses eine flüssigkeitsdurch- strömte Kühlkanalstruktur auf. In addition to stationary applications as an emergency power supply and buffers for power peaks, large battery storage systems are now also regularly used in electric vehicles as a replacement for an internal combustion engine drive. This Bat teriespeicher contain as closed units in addition to battery cells or battery modules and elements for the electrical interconnection of these modules also a control device, which is usually arranged in a separate housing section or completely separate housing within the battery storage. Such a control device is equipped with electronic components, for example battery management system, current measuring shunt, and electromechanical components, for example in the form of contactors, fuses, busbars, connectors, etc. According to the prior art, such a control device is housed in a separate housing section or even an additional closed Ge housing separately from the cells of the battery store for safety reasons. All of the components mentioned above by way of example are mounted therein on a base plate or a circuit support part made of plastic. For reasons of Hochvoltsi security, such a housing section is designed to be protected against accidental contact with its own matching plastic part and completed by forming the additional closed housing within a module housing and also from an immediate external environment. In this case, battery storage systems of the type mentioned for electric vehicles are usually water-cooled for the removal of heat loss and usually have in In the area of the bottom of a module housing, a cooling channel structure through which liquid flows.
Nun ergibt sich eine besondere Herausforderung daraus, dass die enthaltenen elektrotechnischen Komponenten als Summe aus reiner Elektronik, Stromschienen, Sicherungen, Schütze etc. zum Teil Verlustwärme in nicht unerheblichem Maße produzieren. Dies gilt insbesondere dann, wenn das Batteriesystem mit hohen Strömen beaufschlagt wird. Die eingesetzten und die Elektro- komponenten umhüllenden Träger und -Deckel der Kontrollein richtung erschweren jedoch durch ihre geringe Wärmeleitfähig keit eine Entwärmung der exemplarisch genannten Elektrokompo- nenten zusätzlich, indem sie eine flächige Wärmeabgabe an um gebende metallische Gehäusebauteile schon aus Gründen eines Berührungsschutzes drastisch einschränken. Eine Ausbildung von sog. Wärme-Nestern ist die Folge dieser Situation, was insbe sondere an Elektronikkomponenten aufgrund eines mit der Tempe ratur einhergehenden rapiden Anstiegs einer Ausfallwahrschein lichkeit, als auch an Schmelzsicherungen aufgrund einer nega tiven Beeinflussung einer Auslösecharakteristik für einen zu verlässigen Dauerbetrieb sehr nachteilhaft oder gar kontrapro duktiv ist. A special challenge now arises from the fact that the electrical components contained, as the sum of pure electronics, busbars, fuses, contactors, etc. sometimes produce a not inconsiderable amount of heat loss. This is especially true when the battery system is subjected to high currents. The carrier and cover of the control device used and enclosing the electrical components make it more difficult, however, due to their low thermal conductivity, to cool the electrical components mentioned as an example by drastically restricting the heat transfer to surrounding metallic housing components for reasons of protection against accidental contact. The formation of so-called heat nests is the result of this situation, which is particularly disadvantageous for electronic components due to a rapid increase in the probability of failure associated with the temperature, as well as for fuses due to a negative influence on a triggering characteristic for reliable continuous operation or even counterproductive.
Gegen einen verfrühten Ausfall elektronischer Komponenten kön nen in der Kontrolleinrichtung redundante Einheiten vorgesehen sein. Alternativ macht eine starke Erwärmung einer elektri schen Sicherung ein sog. „Derating" erforderlich, also eine Auslegung auf einen höheren Auslösestrom. Nach dem Stand der Technik müssen die eingesetzten Elektrokomponenten also ge zielt überdimensioniert werden, um den höheren Temperaturen im Fall hoher Belastung Rechnung zu tragen. Alternativ kann eine höhere Ausfallwahrscheinlichkeit in Kauf genommen werden. Die genannten konstruktiven Lösungsansätze erzeugen jedoch einen höheren Platzbedarf und führen höhere Kosten mit sich, sofern es bei den i.d.R. gegebenen engen räumlichen Bedingungen in einem Modulgehäuse überhaupt realisierbar ist. Eine verkürzte Lebensdauer führt ebenfalls zu erhöhten Kosten sowie verrin gerter Zuverlässigkeit und kann daher nicht ernsthaft als Lö sung in Betracht gezogen werden. To prevent premature failure of electronic components, redundant units can be provided in the control device. Alternatively, excessive heating of an electrical fuse requires so-called "derating", i.e. a design for a higher tripping current. According to the state of the art, the electrical components used must therefore be deliberately oversized in order to take account of the higher temperatures in the event of high loads Alternatively, a higher probability of failure can be accepted. However, the above-mentioned constructive solution approaches generate a higher space requirement and result in higher costs, provided that the generally tight spatial conditions in a module housing can be implemented at all. A shortened service life also leads to increased costs and reduced reliability and therefore cannot be seriously considered as a solution.
Es besteht daher für die vorliegende Erfindung die Aufgabe, eine Kontrolleinrichtung zu schaffen, bei der auch ohne Über dimensionierung von Bauteilen eine vorgegebene Lebensdauer zu verlässig erreichbar ist. The object of the present invention is therefore to create a control device in which a predetermined service life can be reliably achieved without overdimensioning components.
Diese Aufgabe wird erfindungsgemäß durch die Merkmale von An spruch 1 dadurch gelöst, dass ein geschlossenes Gehäuse zur Ausbildung einer freien und/oder erzwungenen Konvektion ausge bildet ist, durch die Temperaturunterschiede innerhalb des Ge häuses und auch über die Kontrolleinrichtung hinweg ausgleich bar sind. According to the invention, this object is achieved by the features of claim 1 in that a closed housing is formed to form free and / or forced convection through which temperature differences within the housing and also across the control device can be compensated.
Der Erfindung liegt also im Wesentlichen die Erkenntnis zu grunde, dass eine Ausbildung von Wärme-Nestern dadurch begüns tig wird, dass sich innerhalb des geschlossenen Gehäuses der Kontrolleinrichtung kaum natürliche oder freie Konvektion aus bilden kann. Eine entsprechende Ausbildung des geschlossenen Gehäuses, durch die eine Ausbildung einer freien und/oder er zwungenen Konvektion ermöglicht ist, wirkt einer Ausbildung ausgeprägter Wärme-Nester stark entgegen. Damit werden zumin dest Temperaturunterschiede innerhalb des Gehäuses ausgegli chen, wodurch die Bauteile in normalen thermischen Betriebs punkten arbeiten können. The invention is therefore essentially based on the knowledge that the formation of heat nests is beneficial in that natural or free convection can hardly develop within the closed housing of the control device. A corresponding design of the closed housing, by means of which the formation of free and / or forced convection is made possible, strongly counteracts the formation of pronounced heat pockets. This means that at least temperature differences within the housing are compensated, so that the components can work in normal thermal operation.
Vorteilhafte Weiterbildungen sind Gegenstand der jeweiligen Unteransprüche. Demnach ist ein Tragteil als Basis der Kon trolleinrichtung innerhalb des geschlossenen Gehäuses so aus gebildet, dass dieser Tragteil entlang einer Längserstreckung bzw. in Längsrichtung des Gehäuses von einem Boden des geschlossenen Gehäuses als Teil eines Modulgehäuses abgehoben ist einen freien Strömungsquerschnitt bildet. Advantageous further developments are the subject of the respective subclaims. Accordingly, a support part is formed as the basis of the control device within the closed housing so that this support part along a longitudinal extent or in the longitudinal direction of the housing from a bottom of the closed housing is lifted off as part of a module housing forms a free flow cross-section.
In einer bevorzugten Ausführungsform der Erfindung bildet ein Eingang des freien Strömungsquerschnitts eine unmittelbare Aufnahme für einen Gerätelüfter, der insbesondere aktiv ange trieben und ggf. auch elektrisch geregelt ist. In a preferred embodiment of the invention, an inlet of the free flow cross section forms a direct receptacle for a device fan, which is in particular actively driven and, if necessary, also electrically controlled.
Weiterhin ist bevorzugt, dass eine Öffnung zwischen einem durch das Tragteil gebildeten unteren Teil und einem oberen Teil des geschlossenen Gehäuses der Kontrolleinrichtung vorge sehen ist, die an einem dem Gerätelüfter gegenüberliegenden Ende des Tragteils angeordnet ist. Damit ergibt sich eine ma ximale Länge eines für die Konvektion zur Verfügung stehenden freien Strömungsquerschnitts innerhalb des geschlossenen Ge häuses der Kontrolleinrichtung. Diese Strömungsweg verläuft quasi um das Tragteil geschlossen herum. It is also preferred that an opening is provided between a lower part formed by the support part and an upper part of the closed housing of the control device, which opening is arranged at an end of the support part opposite the device fan. This results in a maximum length of a free flow cross-section available for convection within the closed housing of the control device. This flow path runs almost closed around the support part.
Vorteilhafterweise ist in dem geschlossenen Gehäuse eine Ab fuhr der durch Konvektion aufgenommenen Wärme der Kontrollein richtung durch einen Wärmetauscher vorgesehen. Es ist in die ser Ausführungsform der Erfindung also nicht nur eine Gleich verteilung von Verlustwärme über die Kontrolleinrichtung hin weg angestrebt, eine konvektiv aufgenommene Wärme wird auch gezielt aus dem geschlossenen Gehäuse der Kontrolleinrichtung abgeführt . Advantageously, in the closed housing, a drive from the heat absorbed by convection of the control device is provided through a heat exchanger. In this embodiment of the invention, the aim is not only to evenly distribute heat loss via the control device, but convectively absorbed heat is also specifically dissipated from the closed housing of the control device.
In einer bevorzugten Ausführungsform der Erfindung ist eine Unterseite des freien Strömungsquerschnitts unmittelbar als Wärmetauscher bzw. zum Überstreichen einer Kühlplatte der Bat- teriemodule des betreffenden Batteriespeichers ausgebildet. In a preferred embodiment of the invention, an underside of the free flow cross section is designed directly as a heat exchanger or for passing over a cooling plate of the battery modules of the battery storage unit concerned.
Das Tragteil ist als Kunststoffträger vorzugsweise so ausge bildet, dass seine Traggeometrie nicht nur die vorstehend exemplarisch genannten Komponenten gut aufnehmen, tragen und fixieren kann, sondern gleichzeitig auch eine Schottwand zwi schen einem oberem und unterem Volumen des geschlossenen Ge häuses bildet, wobei der Kunststoffträger auf der Seite, die der due Komponenten tragenden oberen Seite gegenüberliegt, Öffnungen zur Ausströmung von Luft von der unteren Gehäuse hälfte in die obere Gehäusehälfte aufweist. Diese Öffnungen sind in einer Ausführungsform der Erfindung auch direkt unter besonders verlustträchtigen Komponenten angeordnet, insbeson dere Schmelzsicherungen oder Shunts, zur gezielten Entwärmung durch Konvektion. The support part is preferably designed as a plastic support in such a way that its support geometry does not only well accommodate, support and support the components mentioned above by way of example can fix, but at the same time also forms a bulkhead between an upper and a lower volume of the closed Ge housing, with the plastic carrier on the side opposite the upper side carrying the due components, openings for air to flow from the lower half of the housing into the upper half Has housing half. In one embodiment of the invention, these openings are also arranged directly under particularly lossy components, in particular fuses or shunts, for targeted cooling by convection.
Mit einer erfindungsgemäßen Ausbildung einer Kontrolleinrich tung wird eine gerichtete Strömung innerhalb des gesamten ge schlossenen Gehäuseabschnitts erzeugt. Eine Wärmenestbildung wird effektiv vermieden. Durch das Überstreichen des verlän gerten Batteriemodul-Kühlblechs findet ein direkter Wärmeaus tausch der umgewälzten Luft mit dem Kühlsystem statt. Beson ders verlustbehaftete Bauteile können durch dedizierte und di rekt unter diesen Bauteilen vorgesehene Ausströmöffnungen zu sätzlich intensiver gekühlt werden. Sogar ein Einsatz eines um die Kontrolleinrichtung rundherum geschlossenen Kunststoffge- häuses ist so problemlos möglich. With an inventive design of a Kontrollinrich device, a directed flow is generated within the entire ge closed housing section. Heat nest formation is effectively avoided. By passing over the extended battery module cooling plate, there is a direct heat exchange between the circulated air and the cooling system. Components that are particularly lossy can also be cooled more intensively by means of dedicated discharge openings provided directly under these components. It is even possible to use a plastic housing that is closed all around the control device.
Erfindungsgemäß wird ein Tragteil in Form eines Kunststoffträ- gers als Basis der Kontrolleinrichtung und damit als ein we sentlicher Teil innerhalb des geschlossenen Gehäuses geschaf fen, wobei das Tragteil According to the invention, a support part in the form of a plastic carrier is created as the basis of the control device and thus as an essential part within the closed housing, the support part
a. als elektrisch isolierendes Kunststoffbauteil, vorzugsweise als Spritz-Gießteil ausgeführt ist; a. is designed as an electrically insulating plastic component, preferably as an injection-molded part;
b. als tragendes Bauteil in einem unteren Gehäuseabschnitt b. as a supporting component in a lower housing section
dazu ausgebildet ist, dass es elektrotechnische Komponenten aufnimmt und mechanisch fixiert und sich zudem auch selber innerhalb des geschlossenen Gehäuses fixiert, vorzugsweise durch angeformte Abstützungen oder eigene Beine, die in ei ner Einbaulage an ungefähr gegenüberliegenden Bereichen des geschlossenen Gehäuses anliegen; alternativ sind Vorsprünge und/oder Absätze als definierte Auflagen des Tragteils in einer Einbaulage in dem geschlossenen Gehäuse vorgesehen; c. einen Strömungsquerschnitt schafft, der einer Länge nach von einem Ende zum anderen Ende des geschlossenen Gehäuses der Kontrolleinrichtung reicht; is designed so that it receives electrical components and fixes them mechanically and also fixes itself within the closed housing, preferably through molded supports or its own legs, which in an installed position in approximately opposite areas of the closed housing; alternatively, projections and / or shoulders are provided as defined supports of the support part in an installation position in the closed housing; c. creates a flow cross-section extending lengthwise from one end to the other end of the closed housing of the control device;
d. eine Aufnahme für einen Gehäuselüfter aufweist; d. has a receptacle for a case fan;
e. dedizierte und entsprechend ausgerichtete Ausström-Öffnun- gen für Bauteile mit hohen Verlusten aufweist, um diese di rekt zur Entwärmung anzuströmen; e. has dedicated and appropriately aligned outflow openings for components with high losses in order to flow directly to them for cooling;
f. einen Strömungsquerschnitt aufweist, der an einer Unter seite zu einer Kühlplatte hin offen ist, und in Längsrich tung von einem Ende des Volumens zu dem anderen Ende reicht, um einen Luftstrom zu transportieren und den Wär meaustausch zu der darunter liegenden Kühlplatte zu ermög lichen . f. has a flow cross-section that is open on an underside to a cooling plate, and extends in the longitudinal direction from one end of the volume to the other end in order to transport an air flow and to enable heat exchange to the cooling plate below .
Das geschlossene Gehäuses der Kontrolleinrichtung bildet mit einem Tragteil der genannten Art ein System mit vorteilhafter weise minimalem Gehäusevolumen, umfassend eine untere Kunst stoffträger- und Luftleitplatte, eine obere Kunststoffplatte, zu kühlende elektrotechnische Komponenten, einen auf oder an dem Tragteil montierten Gehäuselüfter und flüssigkeitsgefüllte Kühlplatten, die unter dem unteren Kunststoffträger flächig ausgebreitet vorgesehen sind. Das Tragteil weist also eine be stückte Oberseite und eine unbestückte Unterseite auf, wobei die Unterseite dazu ausgebildet ist, in einer Einbaulage einem Wärmetauscher gegenüberliegend angeordnet zu sein. The closed housing of the control device forms with a support part of the type mentioned a system with advantageously minimal housing volume, comprising a lower plastic carrier and air guide plate, an upper plastic plate, electrical components to be cooled, a housing fan mounted on or on the support part and liquid-filled cooling plates, which are provided spread out under the lower plastic support. The support part thus has a be fitted top and an unpopulated bottom, wherein the bottom is designed to be arranged opposite a heat exchanger in an installation position.
Nachfolgend werden weitere Merkmale und Vorteile erfindungsge mäßer Ausführungsformen unter Bezugnahme auf Ausführungsbei spiele anhand der Zeichnung näher erläutert. Darin zeigen in schematischer Darstellung: Figur 1: eine perspektivische Ansicht eines Teils eines Batte riespeichers mit einer Kontrolleinheit und einer Mehrzahl von elektrischen Speicherzellen; Further features and advantages of the embodiments according to the invention are explained in more detail below with reference to exemplary embodiments using the drawings. It shows in a schematic representation: FIG. 1: a perspective view of part of a battery storage unit with a control unit and a plurality of electrical storage cells;
Figur 2: eine seitliche Ansicht des Batteriespeichers von Fi gur 1 und Figure 2: a side view of the battery storage of Fi gur 1 and
Figur 3: eine Ansicht einer Längsseite von Figur 1 in einer Figure 3: a view of a longitudinal side of Figure 1 in one
Schnittdarstellung . Sectional view.
Über die verschiedenen Abbildungen hinweg werden für gleiche Elemente stets die gleichen Bezugszeichen verwendet. Ohne eine Beschränkung des Einsatzfeldes wird nachfolgend nur auf einen Einsatz einer erfindungsgemäßen Vorrichtung in einem Fahrzeug eingegangen. Dem Fachmann ist aber ohne weiteres ersichtlich, dass erfindungsgemäße Vorrichtungen aufgrund hoher Ströme und entsprechenden Anforderungen an einen Berührschutz auch sehr vorteilhaft bei stationären Energiespeichern Verwendung finden können, insbesondere in Verbindung von Windkraft- und/oder Photovoltaik-Anlagen . The same reference symbols are always used for the same elements across the various figures. Without restricting the field of application, only the use of a device according to the invention in a vehicle will be discussed below. However, it is readily apparent to a person skilled in the art that devices according to the invention can also be used very advantageously in stationary energy storage systems due to high currents and corresponding requirements for contact protection, in particular in connection with wind power and / or photovoltaic systems.
Die Skizze von Figur 1 zeigt eine perspektivische Ansicht ei nes Teils eines Batteriespeichers 1 mit einer Kontrolleinrich tung 2 und einer Mehrzahl von elektrischen Speicherzellen 3.The sketch of FIG. 1 shows a perspective view of a part of a battery storage device 1 with a control device 2 and a plurality of electrical storage cells 3.
Die Kontrolleinheit 2 ist dabei von den Speicherzellen 3 phy sikalisch getrennt von einem Modulgehäuse 4 in einem eigenen und gegenüber dem sonstigen Batteriespeicher 1 geschlossenen Gehäuse 5 angeordnet. The control unit 2 is physically separated from the storage cells 3 by a module housing 4 in its own housing 5 that is closed with respect to the other battery storage device 1.
In dem geschlossenen Gehäuse 5 sind neben Komponenten der Elektronik, z.B. ein elektronisches Batteriemanagementsystem BM mit Leistungshalbleitern und Strommessshunts auch Komponen ten der Elektromechanik z.B. in Form von Schützen, Sicherungen Si, Stromschienen S und Steckverbindern untergebracht. Um eine Kontrolleinrichtung 2 ohne eine Überdimensionierung zumindest einiger seiner vorstehend nur exemplarisch genannten Bauteile zum zuverlässigen Erreichen einer vorgegebenen Lebensdauer dieser Bauteile zu schaffen, ist das geschlossene Gehäuse 5 zur Ausbildung einer freien und/oder erzwungenen Konvektion ausgebildet. Durch die Konvektion sind Temperaturunterschiede innerhalb des Gehäuses 5 soweit ausgleichbar, dass alle Bau teile in normalen Temperaturbereichen betrieben werden und da mit ihre vorgegebene Lebensdauer erreichen können. Neben er höhten Kosten wird damit auch effektiv ein stets nur sehr rar vorhandener Bauraum eingespart. In the closed housing 5 not only components of the electronics, eg an electronic battery management system BM with power semiconductors and current measuring shunts, but also components of the electromechanics eg in the form of contactors, fuses Si, busbars S and connectors. To a To create the control device 2 without overdimensioning at least some of its components mentioned above only as examples to reliably achieve a predetermined service life of these components, the closed housing 5 is designed to form free and / or forced convection. As a result of the convection, temperature differences within the housing 5 can be compensated for to the extent that all construction parts are operated in normal temperature ranges and can therefore achieve their specified service life. In addition to increased costs, this also effectively saves installation space, which is always very rare.
Die Abbildung von Figur 2 zeigt mit einer seitlichen Ansicht des Batteriespeichers 1 von Figur 1 einen durch Pfeile ange deuteten Verlauf einer Konvektion innerhalb des geschlossenen Gehäuses 5 der Kontrolleinrichtung 2. Zu der gezielten Ausbil dung der Konvektion ist ein Tragteil 6, das eine Basis für die Kontrolleinrichtung 2 innerhalb des geschlossenen Gehäuses 5 bildet, als mechanischer Träger aller Komponenten und Fixie rung innerhalb des geschlossenen Gehäuses 5. Das Tragteil 6 ist in Form eines Kunststoff-Bauteils so ausgeführt, dass es entlang einer Längsachse bzw. in Längsrichtung des Gehäuses 5 von einem Boden B des Modulgehäuses 4 abgehoben einen freien Strömungsquerschnitt 7 bildet. Dazu weist das Tragteil 6 ange formte Abstützungen oder Beine auf, die in der Zeichnung auf grund der dichten Bestückung des Tragteils 6 mit zahlreichen Bauelementen der Kontrolleinrichtung 2 in einer Einbaulage kaum erkennbar sind, und trennt nach Art einer Schottwand ei nen oberen Teil oT von einem unteren Teil uT des Volumens des geschlossenen Gehäuses 5 für die Kontrolleinrichtung 2. Der unteren Teil uT schließt nun als freier Strömungsquerschnitt 7 einen Kreislauf der Konvektion. The illustration of Figure 2 shows a side view of the battery storage 1 of Figure 1, indicated by arrows of a convection curve within the closed housing 5 of the control device 2. To the targeted training of the convection is a support part 6, which is a base for the Control device 2 within the closed housing 5 forms, as a mechanical carrier of all components and fixation within the closed housing 5. The support part 6 is designed in the form of a plastic component so that it is along a longitudinal axis or in the longitudinal direction of the housing 5 from a Lifted bottom B of the module housing 4 forms a free flow cross section 7. For this purpose, the support part 6 has formed supports or legs, which are hardly recognizable in the drawing due to the dense assembly of the support part 6 with numerous components of the control device 2 in an installation position, and separates egg NEN upper part oT from one like a bulkhead lower part uT of the volume of the closed housing 5 for the control device 2. The lower part uT now closes a circuit of convection as a free flow cross section 7.
Zur Herstellung einer erzwungenen Konvektion ist an einem Ein gang des freien Strömungsquerschnitts 7 eine Aufnahme vorgesehen, an der ein elektrisch aktiv angetriebener, gere gelter Gerätelüfter 8 angeordnet ist. Zudem ist eine Öffnung 9 zwischen dem unteren Gehäuseteil uT und dem oberen Teil oT des geschlossenen Gehäuses 5 der Kontrolleinrichtung 2 vorgesehen, die an einem dem Gerätelüfter 8 gegenüberliegenden Ende des Tragteils 6 angeordnet ist. Damit kann sich eine Strömung im Wesentlichen über eine gesamte Längserstreckung des geschlos senen Gehäuses 5 ausbilden. Ferner ist eine Unterseite des freien Strömungsquerschnitts 7 unmittelbar als Wärmetauscher 10 durch Überstreichen einer Kühlplatte 11 der Batteriemodule bzw. elektrischen Speicherzellen 3 ausgebildet. To produce a forced convection, a receptacle is at a passage of the free flow cross section 7 provided, on which an electrically actively driven, regulated device fan 8 is arranged. In addition, an opening 9 is provided between the lower housing part uT and the upper part oT of the closed housing 5 of the control device 2, which opening is arranged on an end of the support part 6 opposite the device fan 8. A flow can thus develop essentially over an entire longitudinal extension of the closed housing 5. Furthermore, an underside of the free flow cross section 7 is designed directly as a heat exchanger 10 by passing over a cooling plate 11 of the battery modules or electrical storage cells 3.
Nicht weiter dargestellt sind in den Abbildungen der Zeichnung spezielle Öffnungen, die von dem unteren Gehäuseteil uT durch das eine Schottwand bildende Tragteil 6 zwischen dem oberen und dem unteren Volumen des geschlossenen Gehäuses 4 hindurch gezielt an oder unter Komponenten mit besonders hohen elektri schen Verlustleistungen vorgesehen sind oder aber auf diese besonders ausgerichtet sind. Hierdurch ist zusätzlich eine ge zielte Entwärmung mit quasi punktueller Abfuhr der elektri schen Wärmeverluste innerhalb des geschlossenen Gehäuses 5 re alisierbar . Not shown in the figures of the drawing are special openings that are provided by the lower housing part uT through the support part 6 forming a bulkhead between the upper and lower volume of the closed housing 4 through targeted on or under components with particularly high electrical power losses or are specifically geared towards them. As a result, ge targeted heat dissipation with quasi-selective dissipation of the electrical heat losses within the closed housing 5 can also be realized.
Die Abbildung von Figur 3 stellt eine Ansicht einer Längsseite von Figur 1 in einer Schnittdarstellung dar und unterstreicht durch die offensichtlich optimierte Ausnutzung des i.d.R. The illustration of Figure 3 shows a view of a longitudinal side of Figure 1 in a sectional view and underlines the obviously optimized use of the usually.
knapp bemessenen Bauraums, dass durch eine vorstehend be schriebene Ausgestaltung eines Tragteils 6 die Vorteile eines raumsparenden, kompakten Designs der Kontrolleinrichtung 2 er halten bleiben. Zudem ermöglicht eine solche Anordnung die Bildung eines thermischen Ausgleichs mit deutlicher Minderung der Ausbildung thermischer Nester mit weitgehender Eliminie rung der Möglichkeit lokaler oder regionaler Überhitzungen während des Betriebs der Kontrolleinrichtung 2. Aber es er folgt nicht nur ein thermischer Ausgleich innerhalb des geschlossenen Gehäuses 5 der Kontrolleinrichtung 2, vielmehr wird ohne zusätzlichen Aufwand eine für die Kühlung der Batte- riemodule bzw. elektrischen Speicherzellen 3 vorgesehene Kühl platte 10 zum Wärmeabtransport aus dem geschlossenen Gehäuse 5 als Teil des Modulgehäuses 4 in vorteilhafter Weise mit ge nutzt . tightly dimensioned installation space that the advantages of a space-saving, compact design of the control device 2 are retained by an above-described configuration of a support part 6. In addition, such an arrangement enables the formation of thermal compensation with a significant reduction in the formation of thermal nests with extensive elimination of the possibility of local or regional overheating during operation of the control device 2. But it does not only follow a thermal compensation within the closed housing 5 of the control device 2, rather a cooling plate 10 provided for cooling the battery modules or electrical storage cells 3 is advantageously used as part of the module housing 4 to remove heat from the closed housing 5 as part of the module housing 4.
Bezugszeichenliste List of reference symbols
Batteriespeieher Battery storage
Kontrolleinrichtung Control device
elektrische Speicherzelle electrical storage cell
Modulgehäuse Module housing
geschlossenes Gehäuse closed housing
Tragteil /Schott Support part / bulkhead
freier Strömungsquerschnitt free flow cross-section
Gerätelüfter Device fan
Öffnung opening
0 Fluid-Wärmetauscher im Modulgehäuse 4 1 Kühlplatte 0 fluid heat exchanger in the module housing 4 1 cooling plate
B Boden B floor
BM Batteriemanagementsystem BM battery management system
S Stromschiene S power rail
Si Sicherung Si fuse
oT oberer Teil des geschlossenen Gehäuses 5 uT unterer Teil des geschlossenen Gehäuses 5 oT upper part of the closed housing 5 uT lower part of the closed housing 5

Claims

Ansprüche Expectations
1. Kontrolleinrichtung (2) für einen Batteriespeicher (1), die mit Komponenten der Elektronik, z.B. Batteriemanagementsys tem (BM) , Strommessshunt sowie Komponenten der Elektrome chanik, z.B. in Form von Schützen, Sicherungen (Si), Strom schienen (S), Steckverbindern bestückt ist, und die Kon trolleinrichtung (2) als Einheit in einem geschlossenen Ge häuse (5) untergebracht ist, 1.Control device (2) for a battery storage unit (1), which is connected to electronic components, e.g. battery management system (BM), current measuring shunt and electronic components, e.g. in the form of contactors, fuses (Si), power rails (S), Connectors is fitted, and the control device (2) is housed as a unit in a closed housing (5),
dadurch gekennzeichnet, dass characterized in that
das geschlossene Gehäuse (5) zur Ausbildung einer freien und/oder erzwungenen Konvektion ausgebildet ist, wobei durch die Konvektion Temperaturunterschiede innerhalb des Gehäuses (5) und über die Kontrolleinrichtung (2) hinweg ausgleichbar sind. the closed housing (5) is designed to form free and / or forced convection, with the convection being able to compensate for temperature differences within the housing (5) and across the control device (2).
2. Kontrolleinrichtung (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass ein Tragteil (6) eine Basis der Kontrolleinrichtung (2) innerhalb des geschlossenen Ge häuses (5) bildet und das Tragteil (6) als Kunststoffträger so ausgeführt ist, dass er entlang einer Längsachse bzw. in Längsrichtung des Gehäuses (5) von einem Boden eines Modul gehäuses (4) abgehoben einen freien Strömungsquerschnitt2. Control device (2) according to the preceding claim, characterized in that a support part (6) forms a base of the control device (2) within the closed Ge housing (5) and the support part (6) is designed as a plastic carrier so that it along a longitudinal axis or in the longitudinal direction of the housing (5) from a base of a module housing (4) lifted a free flow cross section
(7) bildet. (7) forms.
3. Kontrolleinrichtung (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass an einem Eingang des freien Strömungsquerschnitts (7) ein elektrisch aktiv angetriebe ner Gerätelüfter (8) vorgesehen ist. 3. Control device (2) according to the preceding claim, characterized in that an electrically actively driven device fan (8) is provided at an inlet of the free flow cross section (7).
4. Kontrolleinrichtung (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass eine Öffnung (9) zwischen ei nem unteren Gehäuseteil (uT) und einem oberen Teil (oT) des geschlossenen Gehäuses (5) der Kontrolleinrichtung (2) vor gesehen ist, die an einem dem Gerätelüfter (8) gegenüberliegenden Ende des Tragteils (6) vorgesehen ist. 4. Control device (2) according to the preceding claim, characterized in that an opening (9) between egg nem lower housing part (uT) and an upper part (oT) of the closed housing (5) of the control device (2) is seen before, on one of the device fan (8) opposite end of the support part (6) is provided.
5. Kontrolleinrichtung (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass an dem geschlossenen Gehäuse (5) eine Abfuhr der durch Konvektion aufgenommenen Wärme durch einen Wärmetauscher (10) vorgesehen ist. 5. Control device (2) according to the preceding claim, characterized in that a dissipation of the heat absorbed by convection by a heat exchanger (10) is provided on the closed housing (5).
6. Kontrolleinrichtung (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass eine Unterseite des freien Strömungsquerschnitts (7) unmittelbar als Wärmetauscher (10) ausgebildet ist, insbesondere als Wärmetauscher (10) des Modulgehäuses (4) . 6. Control device (2) according to the preceding claim, characterized in that an underside of the free flow cross section (7) is designed directly as a heat exchanger (10), in particular as a heat exchanger (10) of the module housing (4).
7. Kontrolleinrichtung (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Unterseite des freien Strömungsquerschnitts (7) zum Überstreichen einer Kühl platte (11) der Batteriemodule oder elektrischer Speicher zellen (3) ausgebildet ist. 7. Control device (2) according to the preceding claim, characterized in that the underside of the free flow cross-section (7) is designed for sweeping over a cooling plate (11) of the battery modules or electrical storage cells (3).
8. Kontrolleinrichtung (2) nach einem der vier vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das untere Gehäuse teil (uT) eine Schottwand zwischen einem oberen und einem unteren Volumen des geschlossenen Gehäuses (5) der Kontrol leinrichtung (2) bildet. 8. Control device (2) according to one of the four preceding claims, characterized in that the lower housing part (uT) forms a bulkhead between an upper and a lower volume of the closed housing (5) of the control device (2).
9. Kontrolleinrichtung (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass diese Schottwand Öffnungen (9) zur Ausströmung von Luft in den oberen, bestückten Gehäuse teil (oT) aufweist. 9. Control device (2) according to the preceding claim, characterized in that this bulkhead has openings (9) for the outflow of air into the upper, equipped housing part (TDC).
10. Kontrolleinrichtung (2) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Öffnungen (9) gezielt und besonders ausgerichtet an oder unter Komponenten mit beson ders hohen elektrischen Verlustleistungen vorgesehen sind. 10. Control device (2) according to the preceding claim, characterized in that the openings (9) are provided specifically and particularly aligned on or below components with particularly high electrical power losses.
EP20754647.4A 2019-07-24 2020-07-24 Monitoring device Pending EP4005011A1 (en)

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DE102019120031.8A DE102019120031A1 (en) 2019-07-24 2019-07-24 Control device
PCT/EP2020/071041 WO2021014016A1 (en) 2019-07-24 2020-07-24 Monitoring device

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DE102022123868A1 (en) 2022-08-22 2024-02-22 Elringklinger Ag Cooling device

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JP4366100B2 (en) * 2003-03-24 2009-11-18 パナソニックＥｖエナジー株式会社 Battery pack
JP4395316B2 (en) * 2003-04-16 2010-01-06 パナソニックＥｖエナジー株式会社 Battery pack
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WO2021014016A1 (en) 2021-01-28
US20220294042A1 (en) 2022-09-15

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