WO2013134808A1 - Battery and battery pack for supplying electrical power - Google Patents

Battery and battery pack for supplying electrical power Download PDF

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Publication number
WO2013134808A1
WO2013134808A1 PCT/AT2013/050067 AT2013050067W WO2013134808A1 WO 2013134808 A1 WO2013134808 A1 WO 2013134808A1 AT 2013050067 W AT2013050067 W AT 2013050067W WO 2013134808 A1 WO2013134808 A1 WO 2013134808A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery pack
battery
round cells
bottom plate
cells
Prior art date
Application number
PCT/AT2013/050067
Other languages
German (de)
French (fr)
Inventor
Johann Hammerschmid
Georg HOCHREITER
Original Assignee
Hammerschmid Maschinenbau Gmbh
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 Hammerschmid Maschinenbau Gmbh filed Critical Hammerschmid Maschinenbau Gmbh
Priority to DE201321000082 priority Critical patent/DE212013000082U1/en
Publication of WO2013134808A1 publication Critical patent/WO2013134808A1/en

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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
    • H01M10/60—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
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/583—Devices or arrangements for the interruption of current in response to current, e.g. fuses
    • 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
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical 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
    • H01M10/60—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
    • H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
    • 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
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • 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
    • 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
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
    • H01M50/276—Inorganic material
    • 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
    • H01M50/514—Methods for interconnecting adjacent batteries or cells
    • H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
    • 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 invention relates to a battery pack for the electrical power supply with a plurality of round cells in mutually offset rows, wherein the round cells have electrical poles, and with a projecting at least partially over the poles of the round cells cover and bottom plate, which are connected to the round cells for a mechanical cohesion and have openings for air cooling of the round cells, wherein the electrically conductive cover and bottom plate are connected to the poles of the round cells both electrically and cohesively.
  • a battery pack with a plate-shaped electrical insulator which serves as a cover and bottom plate provided for holding the round cells of the battery pack.
  • the round cells are inserted with their poles between these two insulators in recesses and are connected by sheet-shaped electrical line contacts, which protrude through openings of the top and bottom plate to the poles of the round cells.
  • openings for air cooling are possible in the insulator, among other things.
  • This embodiment of a battery pack is comparatively complicated to manufacture, also the packing density of the round cells is relatively low and the space requirement of the battery pack thus high.
  • a generic battery pack is known from US201 1 / 0091749A1.
  • This battery pack has a plurality of rows arranged with several round cells offset from one another, wherein these round cells having electrical poles are arranged in two polarity groups next to one another. Next are over provided the poles of the round cell protruding top and bottom plate having openings for air cooling of the round cells. Cover and bottom plate are further connected to the round cells for a mechanical cohesion by the electrically conductive cover or base plate are connected to the poles of the round cells both electrically and cohesively.
  • the round cells are also used on a pole in an insulating base and are covered by a solid housing as an outer sheath, in order to relieve the round cells and their contacts mechanically. With the help of such devices, a battery pack with compact construction ratios can not be guaranteed.
  • the invention is therefore based on the above-described prior art the task of providing a battery pack with a relatively high packing density of round cells available, which is resistant to mechanical influences and can also ensure versatility - especially with regard to a possible Forming a modular composite of several of these battery packs.
  • the invention achieves the stated object in that between the round cells and between the top and bottom plate at least one, in particular electrically insulating, spacer is provided, which mechanically connects the top and bottom plate in addition to the round cells.
  • the stability of the battery pack can be improved particularly well. This can be expressed not only in terms of torsional rigidity of the battery pack against mechanical loads, in contrast to the prior art, the battery pack according to the invention can also stand out that the cohesive connection of the round cells with cover and bottom plate is mechanically relieved. Furthermore, the advantage according to the invention can be used if several layers of battery packs are stacked. Due to a spacer in this case further increased mechanical stress on the round cells, the connections between round cells and cover or bottom plate, etc. is reduced.
  • the spacer which acts mechanically parallel to the round cells can therefore contribute substantially to increasing the functional reliability and variable possible use of a battery pack.
  • the spacer can also allow its compact design.
  • spacers can also help to avoid adverse temperature increases in the battery pack or at least limit.
  • spacers are to be preferred, which have the same shape as the batteries of the battery pack, and a longitudinally continuous bore for the purpose of air circulation.
  • advantages for the battery pack according to the invention may result with respect to the nature of its surface. Namely, it is possible to provide a substantially planar surface of an electrically conductive top and / or bottom plate, with any depressions in those areas of the top and / or bottom plate in which they are connected to poles of batteries.
  • battery packs can be connected to one another in a simplified manner to form a battery by being arranged one above the other, for example, for a parallel and / or series connection.
  • the cover plate and / or base plate common to all round cells can provide for improved thermal cooling of the round cells or for equalization of the circular cell temperature.
  • An extremely stable, reliable battery pack can and comparatively easy to manufacture battery pack can be created.
  • the spacer can be surrounded by round cells in order to provide it between the round cells. This can be used for a considerable mechanical relief of the surrounding round cells.
  • the round cell can be understood as any cell having a cylindrical shape.
  • the assembly of a battery pack can be simplified, among other things.
  • a possibility can be used to improve or facilitate the battery pack to be positioned and / or fastened - for example on a housing, which is to receive one or more battery packs.
  • An increased homogeneity in the construction of the battery pack may result if the diameter of the spacers corresponds to the diameter of at least one round cell. le corresponds. In addition, this can contribute to a compact design of the battery pack.
  • a plate-shaped electrical insulator is provided between the cover plate and the round cells and / or between the base plate and the round cells, at least partially covering the areas between their contact points, it is possible in a simple manner to electrically insulate or shield the poles of a round cell in order to connect them to facilitate with a deck or floor plate.
  • those parts or regions of poles of a round cell with the aid of recesses, in particular round holes can also be determined in a targeted manner and kept accessible for connection, in particular welding, with a cover plate or base plate which is required or desired.
  • a battery pack with particularly high density of batteries can be provided, since the so improved connecting poles of a battery with a top or bottom plate much easier and more accurate can be done and thus any damage to batteries in the course of Connecting, in particular welding, can be reduced or prevented.
  • functional impairments of a battery pack can be avoided, for example, due to short circuits improved.
  • insulation in the manner of a carrier for a top and / or bottom plate act and be ensured so that bottom and cover plate can be simplified and also connected in largely arbitrary shape with the poles of the batteries.
  • the top and bottom plates can be designed to a much smaller thickness, since an insulating layer can already provide them with a certain degree of stability.
  • insulation and deck or floor plates are formed as separate parts or as at least partially two- or multi-layer unit in the manner of a circuit board and are connected to the battery pack or the battery cells.
  • insulation and deck or floor plates are formed as separate parts or as at least partially two- or multi-layer unit in the manner of a circuit board and are connected to the battery pack or the battery cells.
  • the round cells abut one another and the openings for air cooling of the round cells are arranged above the gaps lying between the round cells, a particularly high packing density of battery cells can be achieved without neglecting the cooling of a battery pack.
  • the gap between each three adjacent battery cells are used to ensure air flow through the battery pack for the purpose of temperature regulation.
  • adverse effects of elevated temperatures of a battery pack on its stability, performance and / or other properties can be reduced.
  • such a temperature control course of advantage for those battery cells which are arranged in the region of the center of a battery pack and thus surrounded by a plurality of battery cells.
  • gaps between round cells are used for temperature regulation, in that if these gaps are covered by an insulator, by a cover plate or base plate, openings corresponding to the gaps are provided.
  • insulator if these gaps are covered by an insulator, by a cover plate or base plate, openings corresponding to the gaps are provided.
  • other arrangements of battery cells within the scope of the invention such as those in which the battery cells are not arranged adjacent to each other directly touching each other.
  • top and / or bottom plate each form at least one protruding contact surface which at least partially bounds the battery pack on the shell side, a particularly advantageous modular usability of a battery pack can be ensured.
  • a plurality of battery packs according to the invention can then be positioned electrically next to one another and simply interconnected via contact surfaces, without having to provide complex or additional constructions for this purpose - in the case of a plurality of protruding contactors. surfaces shading about about forehead and / or long sides of battery packs are possible. It is conceivable and within the scope of the invention, also depending on the design of the round cells used for a battery pack to form the insulation accordingly, so that this insulation is also at least partially below a formed of cover and / or bottom plate shell.
  • a serial connection of a plurality of battery packs can be carried out in a simple manner.
  • Such trained battery packs for example, relatively easily arranged next to each other are connected in series by these are strung together so that the contact surface of the cover plate of a battery pack with the contact surface of the bottom plates of the subsequent battery pack are electrically connected - the bottom and cover plate of the battery pack course different are poled.
  • the design effort on the battery pack can be further reduced if the round cells are arranged polarity equal between the top and bottom plate. An inexpensive to produce battery pack can thus be created.
  • a battery can be formed from a plurality of electrically interconnected battery packs by the juxtaposed battery packs are electrically connected to each other via their respective contact surfaces.
  • Such a battery can be characterized as particularly compact, powerful and stable. NEN.
  • the production of a battery with a desired power and / or capacity can be carried out by the respectively required number of battery packs is connected to each other. Since a connection of the battery pack according to the invention can allow any parallel and / or series circuits, it is also possible to make this battery spatially comparatively variable and adapt to the particular circumstances and requirements.
  • such a battery can also be produced comparatively inexpensively and, owing to its modular structure, whereby a battery pack can be regarded as a single module, is also particularly cost-effective in its maintenance, in particular with regard to any required replacement of individual modules.
  • top and bottom plates of battery packs arranged next to one another are covered by electrically insulating carrier plates, which carrier plates are fixedly connected to spacers of at least one battery pack by means of connecting means, a layer of battery packs can be easily produced which make possible a connection to a multi-layered battery can.
  • the invention further comprises a battery comprising a plurality of layers of battery packs arranged side by side and connected in series, an electrically insulating carrier plate being provided between the layers and the layers of the battery packs being electrically connected to one another via flexible connection lines.
  • a compact and powerful battery can be provided, which can also be maintained improved, since there is a modular structure of a battery and, for example, if necessary, replaced layers with defective round cells and can be easily replaced.
  • the flexible connecting lines can be designed as a fuse in order to electrically protect overloads of the individual battery packs with each other.
  • the electrical short circuit safety of the battery can be increased by the support plate consists of an electrically insulating material.
  • FIG. 1 is a perspective view of a battery pack according to the invention
  • Fig. 2 is a plan view of the embodiment of FIG. 1,
  • FIG. 3 is a sectional view according to III-III of Fig. 2,
  • FIG. 4 is a perspective view of a battery, comprising a plurality of battery packs,
  • Fig. 5 is a partial sectional view of a battery of Fig. 4 to V-V and
  • Fig. 6 shows a battery according to Fig. 4 in the unfolded state without support plates.
  • Figure 1 shows, for example, a battery pack 1 for electrical power supply with a plurality of round cells 2, which are arranged in mutually offset rows.
  • the round cells 2 have electrical poles 3, 3 'and are connected to a via the poles 3, 3' of the round cells projecting cover plate 5 and bottom plate 6, as can be seen in particular of Figures 3.
  • the ceiling 5 and base plate 6 protrude completely over the poles 3, 3 'of the round cells, which is not absolutely necessary.
  • Ceiling 5 and bottom plate 6 contribute to a mechanical cohesion of the round cells 2 and thus of the battery pack 1 and also have openings 1 1, which are mainly used for air cooling of the round cells 2.
  • the round cells 2 are 6 polarity arranged between deck 5 and bottom plate.
  • Ceiling 5 and bottom plate 6 have an electrically conductive material and are connected to the poles 3, 3 'of the round cells 2 both electrically, and by welding dated cohesively connected.
  • Such recesses 12 can be introduced, for example by deep drawing in the ceiling 5 and bottom plate 6.
  • Ceiling 5 and / or bottom plate 6 are preferably made of a nickel sheet, which can be distinguished by its advantages for a cohesive connection, in particular welding, with the poles of a battery of the battery pack. Namely, such a connection proves to be easy to manufacture and secure, so that a stable and powerful battery pack 1 can be provided.
  • a plate-shaped electrical insulator 10 is provided between the cover plate 5 and the round cells 2.
  • the insulator 10 serves to stabilize the battery pack 1 by largely fixing the arrangement and position of the round batteries in the battery pack 1.
  • the insulator 10 covers the areas of the desired or required connection points on the battery poles 3, 3 'at least partially, whereby a secure and targeted connection of cover 5 and bottom plate 6 with the poles 3, 3' of a round cell 2 can be ensured.
  • the round cells 2 of the battery pack 1 abut each other, whereby a particularly high packing density of the batteries 2 and thus a compact configuration of the battery pack 1 can be achieved.
  • openings 1 1 are provided on the lying between the circular cells 2 gaps, which protrude through the plate-shaped insulator 10 and the electrically conductive cover 5 and bottom plate 6. These openings 1 1 are positioned and formed so that air can flow largely unhindered through those gaps resulting from the positioning of round batteries in parallel staggered rows.
  • active air cooling which is not shown in detail in the figures, that even tightly packed battery packs 1 are sufficiently cooled, whereby a constant, consistent performance or extended life of the battery pack 1 is ensured.
  • the spacers 7 essentially correspond in their shape to those of a round cell 2 and, moreover, are designed to be electrically insulating in order to stop electrical short circuits between the cover plate 5 and the bottom plate 6 at the rear.
  • the diameter of the spacers 7 is selected to correspond to the diameter of the round cells 2.
  • cover 5 and bottom plate 6 are mechanically connected to each other, which significantly increases the mechanical integrity of the battery pack 1.
  • the battery pack 1 according to the invention is therefore particularly stable or therefore particularly suitable for mobile use with the impact loads occurring.
  • the fixed mechanical connection between deck 5 and bottom plate 6 is increased by the spacer 7 is present at cover 5 and bottom plate 6, for which the insulator 10 has recesses.
  • cover 5 and bottom plate 6 in the region of the spacer 7 openings 8, via which openings 8 the spacers 7 associated holding means 16 approximately for additional fixation of bottom 5 or cover plate 6 to a round cell 2 or to another mounting, mounting and the like of the battery pack 1 are accessible.
  • a cylindrically shaped piece of wood or plastic part could, for example, also be suitable as spacers 7, into which for receiving holding means 16 one, the Longitudinal axis at least partially penetrating bore 9 is introduced.
  • such holding means are preferably helical, as can be seen in FIG. 5, and protrude into the spacers 7.
  • the spacers 7 can be used, for example, to support the assembly or assembly of a battery pack or for the temperature control of the battery pack 1, so they are preferably arranged in the region of the center of the battery pack 1, since there is usually a particularly high demand for dissipation of heat consists.
  • cover 5 and / or bottom plate 6 each have a contact surface 5 ', 6' protrudes, which at least partially forms a jacket of the battery pack.
  • a particularly stable battery pack 1 is due to an edge protection formed thereby or a partial sheathing possible.
  • a modular use of the battery pack 1 according to the invention can also be ensured since a plurality of these battery packs 1 can subsequently be positioned against one another and can simply be connected to one another in series via contact surfaces.
  • the insulation 10 also has a correspondingly shaped region 10 ', so that this insulation is also located under a jacket formed by cover and / or base plate.
  • the battery pack 1 on opposite sides of the shell each have a contact surface 6 ', 10' in order to facilitate a serial connection of several of these battery packs 1.
  • a contact surface 6 ', 10' in order to facilitate a serial connection of several of these battery packs 1.
  • Figure 3 shows a sectional view according to III-III of Fig. 2 - here, in particular, the connection points 4, ie those areas of the cover plate 5, which are connected to the poles of a round battery, and the corresponding recesses 12 recognizable.
  • FIG. 3 illustrates a spacer 7 with a bore 9.
  • FIG. 4 shows a battery 12, comprising a plurality of battery packs 1, wherein the battery packs 1 arranged next to one another are electrically connected to one another via their contact surfaces 5 ', 6'. Furthermore, it can be seen that the cover 5 and bottom plates 6 juxtaposed battery packs 1 are covered by electrically insulating support plates 13, said support plates having, among other openings 14, above the holes 9 of the spacers 7, and the associated openings 8 of the deck -5 and / or bottom plate 6 lie. The same applies to openings 15 of the support plate 13, which are arranged above the openings 1 1 of deck 5 and bottom plate 6 and insulator 10 and thus associated with the gaps between adjacent round cells 2.
  • a particularly advantageous air cooling of superimposed battery packs 1 of a battery 12 can be ensured, since the openings 11 and 15 are superimposed in such a way that advantageously a largely unobstructed air stream running vertically through the battery can be made possible - regardless of whether how base 5 and cover plates 6 stacked battery packs are aligned with each other as long as the battery packs are vertically aligned with each other.
  • An electrical short circuit separation of the battery pack 1 is achieved by the support plate 13 is made of an electrically insulating material.
  • FIG. 5 it can be seen that the support plates 13 are fixedly connected via connecting means 16 'with spacers 7 of a battery pack 1, these compounds are designed in particular as a screw connection.
  • retaining means 16 are provided with a spacer for the additional frictional connection of base 5 and cover plates 6 7 and thus can be used for improved mechanical stability of a battery pack.
  • FIG. 5 shows that the layers 17 of battery packs 1 arranged side by side and connected in series are electrically connected to one another via flexible connecting lines 18, these connecting lines 18 being firmly bonded to the respective contact surfaces 5 'and 6' of the corresponding superimposed battery packs of a battery 12. in particular by welding, are connected together.
  • An electrical overloads can easily prevent the battery 12, in which the flexible connecting lines 18 are designed as a fuse.
  • FIG. 6 the exemplary embodiment of a battery according to FIG. 4 is shown in the unfolded state without carrier plates 13, whereby the serial electrical circuit of the layers 17 of the battery and the advantages of the flexible connecting lines 18 can be seen in an improved manner.
  • the support plates 13 are mounted in this embodiment only on the two end-side layers 17 and that on both sides.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Mounting, Suspending (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Secondary Cells (AREA)

Abstract

The invention proposes a battery and a battery pack for supplying electrical power, having a plurality of round cells (2) in rows which are arranged offset in relation to one another, wherein the round cells (2) have electrical poles (3, 3'), and having a cover plate (5) and base plate (6) which project at least partially over the poles (3, 3') of the round cells (2) and which are connected to the round cells (2) for mechanical retention and have openings (11) for cooling the round cells (2) with air, wherein the electrically conductive cover plate (5) and base plate (6) are both electrically connected and materially bonded to the poles of the round cells (2). In order to ensure a particularly compact, easy-to-service and stable battery pack, the invention proposes providing at least one, in particular electrically insulating, spacer (7) between the round cells (2) and between the cover plate (5) and base plate (6), said spacer additionally mechanically connecting the cover plate (5) and base plate (6) to the round cells (2).

Description

Batterie und Batteriepack zur elektrischen Energieversorgung  Battery and battery pack for electrical power supply
Die Erfindung betrifft ein Batteriepack zur elektrischen Energieversorgung mit mehreren Rundzellen in zueinander versetzt angeordneten Reihen, wobei die Rundzellen elektrische Pole aufweisen, und mit einer zumindest teilweise über die Pole der Rundzellen ragenden Deck- und Bodenplatte, die mit den Rundzellen für einen mechanischen Zusammenhalt verbunden sind und Öffnungen zur Luftkühlung der Rundzellen aufweisen, wobei die elektrisch leitenden Deck- und Bodenplatte mit den Polen der Rundzellen sowohl elektrisch, als auch stoffschlüssig verbunden sind. The invention relates to a battery pack for the electrical power supply with a plurality of round cells in mutually offset rows, wherein the round cells have electrical poles, and with a projecting at least partially over the poles of the round cells cover and bottom plate, which are connected to the round cells for a mechanical cohesion and have openings for air cooling of the round cells, wherein the electrically conductive cover and bottom plate are connected to the poles of the round cells both electrically and cohesively.
Aus dem Stand der Technik (EP2154740A2) ist ein Batteriepack mit einem platten- förmigen elektrischen Isolator bekannt, der als Deck- und Bodenplatte vorgesehen zur Halterung der Rundzellen des Batteriepacks dient. Die Rundzellen werden mit Ihren Polen zwischen diesen beiden Isolatoren in Ausnehmungen eingesetzt und sind über blechförmige elektrische Leitungskontakte, die durch Öffnungen der Deck- und Bodenplatte zu den Polen der Rundzellen vorragen, miteinander verbunden. Um eine Temperaturregelung der Rundzellen des Batteriepacks zu erreichen, sind im Isolator unter anderem Öffnungen zur Luftkühlung möglich. Auch diese Ausführung eines Batteriepacks gestaltet sich vergleichsweise aufwendig in ihrer Herstellung, zudem ist die Packungsdichte der Rundzellen relativ gering und der Platzbedarf des Batteriepacks somit hoch. From the prior art (EP2154740A2) a battery pack with a plate-shaped electrical insulator is known, which serves as a cover and bottom plate provided for holding the round cells of the battery pack. The round cells are inserted with their poles between these two insulators in recesses and are connected by sheet-shaped electrical line contacts, which protrude through openings of the top and bottom plate to the poles of the round cells. In order to achieve a temperature control of the round cells of the battery pack, openings for air cooling are possible in the insulator, among other things. This embodiment of a battery pack is comparatively complicated to manufacture, also the packing density of the round cells is relatively low and the space requirement of the battery pack thus high.
Ein gattungsgemäßes Batteriepack ist aus der US201 1/0091749A1 bekannt. Dieses Batteriepack weist mehrere mit mehreren Rundzellen in zueinander versetzt angeordneten Reihen auf, wobei diese elektrische Pole aufweisenden Rundzellen in zwei Polaritätsgruppen eingeteilt nebeneinander angeordnet werden. Weiter sind über die Pole der Rundzellen ragende Deck- und Bodenplatte vorgesehen, die Öffnungen zur Luftkühlung der Rundzellen aufweisen. Deck- und Bodenplatte sind weiter mit den Rundzellen für einen mechanischen Zusammenhalt verbunden, indem die elektrisch leitende Deck- bzw. Bodenplatte mit den Polen der Rundzellen sowohl elektrisch, als auch stoffschlüssig verbunden sind. Die Rundzellen sind zudem an einem Pol in einem isolierenden Sockel eingesetzt und werden von einem massiven Gehäuse als Außenmantel umfasst, um damit die Rundzellen sowie deren Kontakte mechanisch entlasten zu können. Mithilfe derartiger Vorrichtungen kann ein Batteriepack mit kompakten Bauverhältnissen somit nicht gewährleistet werden. A generic battery pack is known from US201 1 / 0091749A1. This battery pack has a plurality of rows arranged with several round cells offset from one another, wherein these round cells having electrical poles are arranged in two polarity groups next to one another. Next are over provided the poles of the round cell protruding top and bottom plate having openings for air cooling of the round cells. Cover and bottom plate are further connected to the round cells for a mechanical cohesion by the electrically conductive cover or base plate are connected to the poles of the round cells both electrically and cohesively. The round cells are also used on a pole in an insulating base and are covered by a solid housing as an outer sheath, in order to relieve the round cells and their contacts mechanically. With the help of such devices, a battery pack with compact construction ratios can not be guaranteed.
Die Erfindung hat sich daher ausgehend von eingangs geschilderten Stand der Technik die Aufgabe gestellt, ein Batteriepack mit einer vergleichsweise hohen Packungsdichte an Rundzellen zur Verfügung zu stellen, das gegenüber mechanischen Einflüssen widerstandsfähig ist und auch eine vielseitige Verwendbarkeit gewährleisten kann - insbesondere in Hinblick auf eine mögliche Ausbildung eines modulartigen Verbunds mehrerer dieser Batteriepacks. The invention is therefore based on the above-described prior art the task of providing a battery pack with a relatively high packing density of round cells available, which is resistant to mechanical influences and can also ensure versatility - especially with regard to a possible Forming a modular composite of several of these battery packs.
Die Erfindung löst die gestellte Aufgabe dadurch, dass zwischen den Rundzellen und zwischen der Deck- und Bodenplatte mindestens ein, insbesondere elektrisch isolierender, Abstandshalter vorgesehen ist, der die Deck- und Bodenplatte zusätzlich zu den Rundzellen mechanisch verbindet. The invention achieves the stated object in that between the round cells and between the top and bottom plate at least one, in particular electrically insulating, spacer is provided, which mechanically connects the top and bottom plate in addition to the round cells.
Ist zwischen den Rundzellen und zwischen der Deck- und Bodenplatte mindestens ein, insbesondere elektrisch isolierender, Abstandshalter vorgesehen, der die Deck- und Bodenplatte zusätzlich zu den Rundzellen mechanisch verbindet, kann die Stabilität des Batteriepacks besonders gut verbessert werden. Dies kann sich nicht nur hinsichtlich der Verwindungssteifigkeit des Batteriepacks gegenüber mechanischen Belastungen äußern, zum Unterschied vom Stand der Technik kann das erfindungsgemäße Batteriepack auch dadurch abheben, dass die stoffschlüssige Verbindung der Rundzellen mit Deck- und Bodenplatte mechanisch entlastet wird. Des Weiteren kann der erfindungsgemäße Vorteil genutzt werden, wenn mehrere Lagen von Batteriepacks übereinander angeordnet werden. Aufgrund eines Abstandshalters ist die in diesem Fall weiter erhöhte mechanische Belastung der Rundzellen, der Verbindungen zwischen Rundzellen und Deck- bzw. Bodenplatte etc. verringert. Der mechanisch parallel zu den Rundzellen wirkende Abstandshalter kann also wesentlich zur Erhöhung der Funktionssicherheit und variablen Einsatzmöglichkeit eines Batteriepacks beitragen. Neben dem vergleichsweise festen Zusammenhalt der Bestandteile eines Batteriepacks, kann der Abstandshalter auch dessen kompakte Ausbildung ermöglichen. Insbesondere, wenn die Rundzellen aneinander anschließend und in zueinander versetzten Reihen angeordnet sind. Zudem kann sich auch von Vorteil erweisen, insbesondere bei vergleichsweise großen Batteriepacks, Abstandshalter zu nutzen, um Batterien, Isolator und/oder Deck- und Bodenplatte - etwa kraftschlüssig und/oder formschlüssig - vorzuverbinden, um in weiterer Folge ein sicheres und einfaches stoffschlüssiges Verbinden von Polen mit Deck- und Bodenplatte zu gewährleisten. Insbesondere bei hoher Packungsdichte von Batterien in einem Batteriepack, wie diese etwa bei zueinander versetzt angeordneten Reihen von Rundzellen erreicht werden kann, können Abstandshalter auch dazu beitragen, nachteilige Temperaturerhöhungen im Batteriepack zu vermeiden oder zumindest zu beschränken. Um hierfür den Konstruktionsaufwand gering zu halten, sind Abstandshalter zu bevorzugen, welche dieselbe Form wie die Batterien des Akkupacks, sowie eine in Längsrichtung durchgehende Bohrung zum Zwecke einer Luftzirkulation aufweisen. Zudem können sich für das erfindungsgemäße Batteriepack Vorteile hinsichtlich der Beschaffenheit seiner Oberfläche ergeben. Es ist nämlich möglich, eine weitgehend plane Oberfläche einer elektrisch leitenden Deck- und/oder Bodenplatte zu schaffen, mit eventuellen Vertiefungen in jenen Bereichen der Deck- und/oder Bodenplatte, in denen diese mit Polen von Batterien verbunden sind. Durch diese Ausgestaltung können Batteriepacks vereinfacht miteinander zu einer Batterie verbunden werden, indem diese beispielsweise für eine Parallel- und/oder Serienschaltung übereinander angeordnet werden. Außerdem kann die, allen Rundzellen gemeinsame Deck- und/oder Bodenplatte für eine verbesserte thermische Kühlung der Rundzellen bzw. für eine Vergleichmäßigung der Rundzellentemperatur sorgen. Ein äußerst standfestes, betriebssicheres Batteriepack kann und vergleichsweise einfach herzustellendes Batteriepack kann dadurch geschaffen werden. Im Allgemeinen wird erwähnt, dass der Abstandshalter von Rundzellen umgeben sein kann, um diesen zwischen den Rundzellen vorzusehen. Dies kann für eine erhebliche mechanische Entlastung der umliegenden Rundzellen genützt werden. If at least one, in particular electrically insulating, spacer is provided between the round cells and between the top and bottom plates, which mechanically connects the top and bottom plates in addition to the round cells, the stability of the battery pack can be improved particularly well. This can be expressed not only in terms of torsional rigidity of the battery pack against mechanical loads, in contrast to the prior art, the battery pack according to the invention can also stand out that the cohesive connection of the round cells with cover and bottom plate is mechanically relieved. Furthermore, the advantage according to the invention can be used if several layers of battery packs are stacked. Due to a spacer in this case further increased mechanical stress on the round cells, the connections between round cells and cover or bottom plate, etc. is reduced. The spacer which acts mechanically parallel to the round cells can therefore contribute substantially to increasing the functional reliability and variable possible use of a battery pack. In addition to the relatively firm cohesion of the components of a battery pack, the spacer can also allow its compact design. In particular, when the round cells are arranged adjacent to each other and in staggered rows. In addition, it may also be advantageous, especially for comparatively large battery packs, to use spacers to preassemble batteries, insulator and / or cover and base plate, for example in a frictionally engaged and / or positive manner, in order subsequently to provide a secure and simple cohesive connection Poland with top and bottom plate to ensure. In particular, at high packing density of batteries in a battery pack, as this can be achieved for example with mutually offset rows of round cells, spacers can also help to avoid adverse temperature increases in the battery pack or at least limit. In order to keep the design effort low, spacers are to be preferred, which have the same shape as the batteries of the battery pack, and a longitudinally continuous bore for the purpose of air circulation. In addition, advantages for the battery pack according to the invention may result with respect to the nature of its surface. Namely, it is possible to provide a substantially planar surface of an electrically conductive top and / or bottom plate, with any depressions in those areas of the top and / or bottom plate in which they are connected to poles of batteries. As a result of this configuration, battery packs can be connected to one another in a simplified manner to form a battery by being arranged one above the other, for example, for a parallel and / or series connection. In addition, the cover plate and / or base plate common to all round cells can provide for improved thermal cooling of the round cells or for equalization of the circular cell temperature. An extremely stable, reliable battery pack can and comparatively easy to manufacture battery pack can be created. In general, it is mentioned that the spacer can be surrounded by round cells in order to provide it between the round cells. This can be used for a considerable mechanical relief of the surrounding round cells.
Im Allgemeinen wird erwähnt, dass unter Rundzelle jegliche Zelle verstanden werden kann, die zylindrische Form aufweist. In general, it is mentioned that the round cell can be understood as any cell having a cylindrical shape.
Weisen die Deck- und Bodenplatte im Bereich eines Abstandshalters Öffnungen auf, und sind dem Abstandshalter über diese Öffnungen zugängliche Haltemittel zur Befestigung des Batteriepacks zugeordnet, kann unter anderem der Zusammenbau eines Akkupacks vereinfacht erfolgen. Zudem kann dadurch erfindungsgemäß eine Möglichkeit genutzt werden, das Batteriepack verbessert bzw. erleichtert zu positionieren und/oder zu befestigen - etwa an einem Gehäuse-, das ein oder auch mehrere Batteriepacks aufnehmen soll. Vorstellbar ist auch, derartige Haltemittel zu nutzen, um mehrere Batteriepacks zum Zwecke einer Schaltung miteinander zu verbinden. Es liegt also im Rahmen der Erfindung, derartige Haltemittel zu nutzen, um Batteriepacks parallel oder in Serie zu schalten und/oder anderwärtig zu nutzten, um mehrere Batteriepacks zu einer Batterie zu verbinden und/oder zu schalten. If the cover plate and baseplate have openings in the region of a spacer, and if holding means accessible to the spacer via these openings are attached for fastening the battery pack, the assembly of a battery pack can be simplified, among other things. In addition, according to the invention a possibility can be used to improve or facilitate the battery pack to be positioned and / or fastened - for example on a housing, which is to receive one or more battery packs. It is also conceivable to use such holding means to connect several battery packs for the purpose of a circuit with each other. It is therefore within the scope of the invention to use such holding means to switch battery packs in parallel or in series and / or otherwise used to connect multiple battery packs to a battery and / or switch.
Konstruktive Einfachheit kann erreicht werden, wenn der Abstandshalter an Deck- und Bodenplatte ansteht. Zudem kann damit eine besonders steife Anbindung zwischen der Deck- und Bodenplatte sichergestellt werden, was die mechanische Belastbarkeit des Batteriepacks noch weiter erhöhen kann - was sich vor allem auch dann von Vorteil erweisen kann, wenn mehrere Batteriepacks übereinander angeordnet sind. Constructive simplicity can be achieved when the spacer abuts the top and bottom plates. In addition, thus a particularly rigid connection between the top and bottom plate can be ensured, which can increase the mechanical strength of the battery pack even further - which may prove especially advantageous if several battery packs are arranged one above the other.
Eine erhöhte Homogenität im Aufbau des Batteriepacks kann sich ergeben, wenn der Durchmesser der Abstandshalter dem Durchmesser mindestens einer Rundzel- le entspricht. Zudem kann dies zu einer kompakten Bauform des Batteriepacks beitragen. An increased homogeneity in the construction of the battery pack may result if the diameter of the spacers corresponds to the diameter of at least one round cell. le corresponds. In addition, this can contribute to a compact design of the battery pack.
Ist zwischen Deckplatte und Rundzellen und/oder zwischen Bodenplatte und Rundzellen je ein plattenförmiger elektrischer Isolator vorgesehen, der die Bereiche zwischen deren Kontaktstellen wenigstens teilweise abdeckt, kann auf einfache Weise ermöglicht werden, Pole einer Rundzelle verbessert elektrisch zu isolieren bzw. abzuschirmen, um deren Verbindung mit einer Deck- oder Bodenplatte zu erleichtern. Somit können in weiterer Folge auch gezielt jene Teile oder Bereiche von Polen einer Rundzellen mithilfe von Aussparungen, insbesondere runden Löchern, festgelegt und für ein Verbinden, insbesondere Verschweißen, mit einer Deck- oder Bodenplatte zugänglich gehalten werden, die erforderlich oder gewünscht sind. Auf diese Weise kann auch ein Batteriepack mit besonders hoher Packungsdichte von Batterien zur Verfügung gestellt werden, da das so verbesserte Verbinden von Polen einer Batterie mit einer Deck- oder Bodenplatte wesentlich einfacher und auch exakter erfolgen kann und somit auch eventuelle Beschädigungen von Batterien im Zuge eines Verbindens, insbesondere Verschweißens, reduziert bzw. verhindert werden können. Somit können Funktionsbeeinträchtigungen eines Batteriepacks beispielsweise aufgrund von Kurzschlüssen verbessert vermieden werden. Außerdem kann einer derartigen Isolierung in der Art eines Trägers für eine Deck- und/oder Bodenplatte fungieren und so sichergestellt werden, dass Boden- und Deckplatte vereinfacht und auch in weitgehend frei wählbarer Ausformung mit den Polen der Batterien verbunden werden können. Insbesondere von Vorteil zeigte sich, dass Deck- und Bodenplatte in wesentlich geringerer Dicke ausgebildet sein können, da eine Isolierschicht diesen bereits eine gewisse Stabilität verleihen kann. Eine aufgrund des verringerten Materialaufwands kostengünstige und trotzdem standfeste und variabel auszugestaltende Vorrichtung kann somit geschaffen werden. Vorstellbar ist, dass Isolierung sowie Deck- bzw. Bodenplatten als separate Teile oder auch als zumindest teilweise zwei- oder mehrschichtige Einheit in der Art einer Platine ausgebildet sind und mit dem Batteriepack bzw. den Batteriezellen verbunden werden. Im Gegensatz zum Stand der Technik kann somit auf verein- fachte Weise ein zuverlässiges Batteriepack zur Verfügung gestellt werden, das aufgrund seiner hohen Packungsdichte bei hoher Leistungsfähigkeit auch vergleichsweise wenig Platz beansprucht. If a plate-shaped electrical insulator is provided between the cover plate and the round cells and / or between the base plate and the round cells, at least partially covering the areas between their contact points, it is possible in a simple manner to electrically insulate or shield the poles of a round cell in order to connect them to facilitate with a deck or floor plate. As a result, those parts or regions of poles of a round cell with the aid of recesses, in particular round holes, can also be determined in a targeted manner and kept accessible for connection, in particular welding, with a cover plate or base plate which is required or desired. In this way, a battery pack with particularly high density of batteries can be provided, since the so improved connecting poles of a battery with a top or bottom plate much easier and more accurate can be done and thus any damage to batteries in the course of Connecting, in particular welding, can be reduced or prevented. Thus, functional impairments of a battery pack can be avoided, for example, due to short circuits improved. In addition, such insulation in the manner of a carrier for a top and / or bottom plate act and be ensured so that bottom and cover plate can be simplified and also connected in largely arbitrary shape with the poles of the batteries. In particular, it has been found to be advantageous that the top and bottom plates can be designed to a much smaller thickness, since an insulating layer can already provide them with a certain degree of stability. A cost-effective due to the reduced cost of materials and yet stable and variable to design device can thus be created. It is conceivable that insulation and deck or floor plates are formed as separate parts or as at least partially two- or multi-layer unit in the manner of a circuit board and are connected to the battery pack or the battery cells. In contrast to the prior art, it is thus possible to way a reliable battery pack is made available, which also takes up comparatively little space due to its high packing density with high performance.
Liegen die Rundzellen aneinander an und sind die Öffnungen zur Luftkühlung der Rundzellen über den, zwischen den Rundzellen liegenden Lücken angeordnet, kann eine besonders hohe Packungsdichte an Batteriezellen erreicht werden, ohne die Kühlung eines Batteriepacks zu vernachlässigen. Erfindungsgemäß kann nämlich, wenn Batteriezellen als Rundzellen ausgebildet sind und in zueinander versetzten Reihen aneinander anliegend angeordnet werden, die Lücke zwischen jeweils drei aneinander anliegenden Batteriezellen genutzt werden, um eine Luftströmung durch das Batteriepack zum Zwecke einer Temperaturregulierung sicherzustellen. Somit können nachteilige Auswirkungen erhöhter Temperaturen eines Batteriepacks auf dessen Standfestigkeit, Leistung und/oder andere Eigenschaften reduziert werden. Insbesondere ist eine derartige Temperaturregulierung natürlich für jene Batteriezellen von Vorteil, die im Bereich des Zentrums eines Batteriepacks angeordnet sind und somit von mehreren Batteriezellen umgeben sind. Erfindungsgemäß werden also derartige Lücken zwischen Rundzellen zur Temperaturregulierung genutzt, indem, sollten diese Lücken von einem Isolator, von einer Deck- oder Bodenplatte abgedeckt sein, über den Lücken entsprechende Öffnungen vorgesehen sind. Es liegen aber selbstverständlich auch andere Anordnungen von Batteriezellen im Rahmen der Erfindung, etwa solche, bei denen die Batteriezellen einander nicht direkt berührend aneinander anschließend angeordnet sind. If the round cells abut one another and the openings for air cooling of the round cells are arranged above the gaps lying between the round cells, a particularly high packing density of battery cells can be achieved without neglecting the cooling of a battery pack. According to the invention, namely, when battery cells are formed as round cells and arranged in mutually offset rows adjacent to each other, the gap between each three adjacent battery cells are used to ensure air flow through the battery pack for the purpose of temperature regulation. Thus, adverse effects of elevated temperatures of a battery pack on its stability, performance and / or other properties can be reduced. In particular, such a temperature control course of advantage for those battery cells, which are arranged in the region of the center of a battery pack and thus surrounded by a plurality of battery cells. Thus, according to the invention, such gaps between round cells are used for temperature regulation, in that if these gaps are covered by an insulator, by a cover plate or base plate, openings corresponding to the gaps are provided. However, it is of course also other arrangements of battery cells within the scope of the invention, such as those in which the battery cells are not arranged adjacent to each other directly touching each other.
Bilden Deck- und/oder Bodenplatte je mindestens eine abstehende Kontaktfläche aus, die wenigstens teilweise das Batteriepack mantelseitig begrenzen, kann eine besonders vorteilhafte modulare Verwendbarkeit eines Batteriepacks sichergestellt werden. Auf diese Weise können nämlich mehrere erfindungsgemäße Batteriepacks aneinander elektrisch anschließend positioniert und über Kontaktflächen einfach miteinander verschaltet werden, ohne hierfür aufwendige oder zusätzliche Konstruktionen vorsehen zu müssen - dabei würde im Falle mehrerer abstehender Kontakt- flächen eine Verschattung etwa auch von Stirn- und/oder Längsseiten von Batteriepacks ermöglicht werden. Vorstellbar und im Rahmen der Erfindung ist, auch in Abhängigkeit der Bauart der für einen Batteriepack verwendeten Rundzellen, die Isolierung entsprechend auszuformen, sodass sich diese Isolierung auch zumindest teilweise unterhalb eines von Deck- und/oder Bodenplatte ausgebildeten Mantels befindet. Somit kann zusätzlich und ohne größeren Aufwand etwa auch ein verbesserter Kantenschutz für einen Batteriepack ausgebildet werden. Zudem kann auf diese Weise auch der Zusammenhalt und die Stabilität eines Batteriepacks verbesset werden, was in Hinblick auf dessen Einsatz unter Belastungen wie Vibrationen etc. von wesentlicher Bedeutung sein kann. Somit kann erfindungsgemäß ein kostengünstiges und platzsparendes Batteriepack mit hoher Standfestigkeit gewährleistet werden. If the top and / or bottom plate each form at least one protruding contact surface which at least partially bounds the battery pack on the shell side, a particularly advantageous modular usability of a battery pack can be ensured. In this way, a plurality of battery packs according to the invention can then be positioned electrically next to one another and simply interconnected via contact surfaces, without having to provide complex or additional constructions for this purpose - in the case of a plurality of protruding contactors. surfaces shading about about forehead and / or long sides of battery packs are possible. It is conceivable and within the scope of the invention, also depending on the design of the round cells used for a battery pack to form the insulation accordingly, so that this insulation is also at least partially below a formed of cover and / or bottom plate shell. Thus, in addition and without much effort about an improved edge protection for a battery pack can be formed. In addition, in this way, the cohesion and the stability of a battery pack can be improved, which in terms of its use under loads such as vibrations, etc. may be essential. Thus, according to the invention, a cost-effective and space-saving battery pack with high stability can be ensured.
Weist ein Batteriepack an gegenüberliegenden Mantelseiten je eine Kontaktfläche auf, kann auf einfache Weise eine serielle Schaltung mehrerer Batteriepacks erfolgen. So können derartig ausgebildete Batteriepacks beispielsweise vergleichsweise einfach nebeneinander angeordnet in Serie geschalten werden, indem diese derart aneinandergereiht werden, dass die Kontaktfläche der Deckplatte eines Batteriepacks mit der Kontaktfläche der Bodenplatten des anschließenden Batteriepacks elektrisch verbunden werden - wobei Boden- und Deckplatte der Batteriepacks natürlich jeweils unterschiedlich gepolt sind. Somit ist es auch vereinfacht möglich, Batteriepacks derselben Bauart miteinander seriell zu verschalten. If a battery pack has a contact surface on opposite sides of the jacket, a serial connection of a plurality of battery packs can be carried out in a simple manner. Thus, such trained battery packs, for example, relatively easily arranged next to each other are connected in series by these are strung together so that the contact surface of the cover plate of a battery pack with the contact surface of the bottom plates of the subsequent battery pack are electrically connected - the bottom and cover plate of the battery pack course different are poled. Thus, it is also possible in a simplified manner to interconnect battery packs of the same type with each other serially.
Der konstruktive Aufwand am Batteriepack kann weiter reduziert werden, wenn die Rundzellen zwischen Deck- und Bodenplatte polaritätsgleich angeordnet sind. Ein kostengünstig herzustellendes Batteriepack kann damit geschaffen werden. The design effort on the battery pack can be further reduced if the round cells are arranged polarity equal between the top and bottom plate. An inexpensive to produce battery pack can thus be created.
Eine Batterie kann aus mehreren elektrisch zusammengeschalteten Batteriepacks ausgebildet werden, indem die nebeneinander angeordneten Batteriepacks über ihre jeweiligen Kontaktflächen elektrisch miteinander verbunden sind. Eine derartige Batterie kann sich als besonders kompakt, leistungsfähig und standfest auszeich- nen. Zudem kann auf vergleichsweise einfache Weise die Herstellung eine Batterie mit einer gewünschten Leistung und/oder Kapazität erfolgen, indem die jeweils erforderliche Anzahl von Batteriepacks miteinander verbunden wird. Da eine Verbindung der erfindungsgemäßen Batteriepacks beliebige Parallel- und/oder Serienschaltungen zulassen kann, ist es auch möglich, diese Batterie räumlichen vergleichsweise variabel zu gestalten und an die jeweiligen Gegebenheiten und Erfordernisse anzupassen. Des Weiteren ist eine derartige Batterie auch vergleichsweise kostengünstig herstellbar und kann sich aufgrund ihres modulartigen Aufbaus, wobei ein Batteriepack als einzelnes Modul angesehen werden kann, auch in ihrer Wartung - insbesondere hinsichtlich eines eventuell erforderlichen Austausche einzelner Module - als besonders kostengünstig auszeichnen. A battery can be formed from a plurality of electrically interconnected battery packs by the juxtaposed battery packs are electrically connected to each other via their respective contact surfaces. Such a battery can be characterized as particularly compact, powerful and stable. NEN. In addition, in a comparatively simple manner, the production of a battery with a desired power and / or capacity can be carried out by the respectively required number of battery packs is connected to each other. Since a connection of the battery pack according to the invention can allow any parallel and / or series circuits, it is also possible to make this battery spatially comparatively variable and adapt to the particular circumstances and requirements. Furthermore, such a battery can also be produced comparatively inexpensively and, owing to its modular structure, whereby a battery pack can be regarded as a single module, is also particularly cost-effective in its maintenance, in particular with regard to any required replacement of individual modules.
Sind die Deck- und Bodenplatten nebeneinander angeordneter Batteriepacks durch elektrisch isolierende Trägerplatten abgedeckt, welche Trägerplatten über Verbindungsmittel mit Abstandshaltern wenigstens eines Batteriepacks fest verbunden sind, kann auf einfache Weise eine Lage von Batteriepacks hergestellt werden, die etwa einen Verbund zu einer mehrere Lagen aufweisenden Batterie ermöglichen kann. If the top and bottom plates of battery packs arranged next to one another are covered by electrically insulating carrier plates, which carrier plates are fixedly connected to spacers of at least one battery pack by means of connecting means, a layer of battery packs can be easily produced which make possible a connection to a multi-layered battery can.
Die Erfindung umfasst des Weiteren eine Batterie, aufweisend mehrere Lagen nebeneinander angeordneter und in Serie geschalteter Batteriepacks, wobei zwischen den Lagen je eine elektrisch isolierende Trägerplatte vorgesehen ist und die Lagen der Batteriepacks über biegsame Verbindungsleitungen elektrisch miteinander verbunden sind. Somit kann eine kompakte und leistungsstarke Batterie zur Verfügung gestellt werden, wobei die zudem auch verbessert gewartet werden kann, da sich ein modularer Aufbau einer Batterie ergibt und beispielsweise im Bedarfsfall Lagen mit defekten Rundzellen ausgetauscht und auf einfache Weise ersetzt werden können. Vorteilhaft können die biegsamen Verbindungsleitungen als Schmelzsicherung ausgeführt sein, um damit Überlastungen der einzelnen Batteriepacks untereinander elektrisch abzusichern. The invention further comprises a battery comprising a plurality of layers of battery packs arranged side by side and connected in series, an electrically insulating carrier plate being provided between the layers and the layers of the battery packs being electrically connected to one another via flexible connection lines. Thus, a compact and powerful battery can be provided, which can also be maintained improved, since there is a modular structure of a battery and, for example, if necessary, replaced layers with defective round cells and can be easily replaced. Advantageously, the flexible connecting lines can be designed as a fuse in order to electrically protect overloads of the individual battery packs with each other.
Die elektrische Kurzschlusssicherheit der Batterie kann erhöht werden, indem die Trägerplatte aus einem elektrisch isolierenden Material besteht. The electrical short circuit safety of the battery can be increased by the support plate consists of an electrically insulating material.
In den Figuren ist beispielsweise der Erfindungsgegenstand anhand eines Ausführungsbeispiels näher dargestellt. Es zeigen In the figures, for example, the subject invention is illustrated in more detail using an exemplary embodiment. Show it
Fig. 1 eine perspektivische Darstellung eines erfindungsgemäßen Batteriepacks, Fig. 2 eine Draufsicht auf das Ausführungsbeispiel nach Fig. 1 ,  1 is a perspective view of a battery pack according to the invention, Fig. 2 is a plan view of the embodiment of FIG. 1,
Fig. 3 eine Schnittansicht nach III-III der Fig. 2, 3 is a sectional view according to III-III of Fig. 2,
Fig. 4 eine perspektivische Darstellung einer Batterie, aufweisend mehrere Batteriepacks,  4 is a perspective view of a battery, comprising a plurality of battery packs,
Fig. 5 eine teilweise Schnittansicht einer Batterie der Fig. 4 nach V-V und  Fig. 5 is a partial sectional view of a battery of Fig. 4 to V-V and
Fig. 6 eine Batterie nach Fig. 4 in aufgeklapptem Zustand ohne Trägerplatten. Fig. 6 shows a battery according to Fig. 4 in the unfolded state without support plates.
Figur 1 zeigt beispielsweise ein Batteriepack 1 zur elektrischen Energieversorgung mit mehreren Rundzellen 2, die in zueinander versetzten Reihen angeordnet sind. Die Rundzellen 2 weisen elektrische Pole 3, 3' auf und sind mit einer über die Pole 3, 3' der Rundzellen ragenden Deckplatte 5 sowie Bodenplatte 6 verbunden, wie dies insbesondere der Figuren 3 entnommen werden kann. Im Ausführungsbeispiel ragen Decken- 5 und Bodenplatte 6 zur Gänze über die Pole 3, 3' der Rundzellen, was jedoch nicht zwingend erforderlich ist. Decken- 5 und Bodenplatte 6 tragen zu einem mechanischen Zusammenhalt der Rundzellen 2 und somit des Batteriepacks 1 bei und weisen zudem Öffnungen 1 1 auf, die vor allem der Luftkühlung der Rundzellen 2 dienen. Die Rundzellen 2 sind zwischen Deck- 5 und Bodenplatte 6 polaritätsgleich angeordnet. Figure 1 shows, for example, a battery pack 1 for electrical power supply with a plurality of round cells 2, which are arranged in mutually offset rows. The round cells 2 have electrical poles 3, 3 'and are connected to a via the poles 3, 3' of the round cells projecting cover plate 5 and bottom plate 6, as can be seen in particular of Figures 3. In the exemplary embodiment, the ceiling 5 and base plate 6 protrude completely over the poles 3, 3 'of the round cells, which is not absolutely necessary. Ceiling 5 and bottom plate 6 contribute to a mechanical cohesion of the round cells 2 and thus of the battery pack 1 and also have openings 1 1, which are mainly used for air cooling of the round cells 2. The round cells 2 are 6 polarity arranged between deck 5 and bottom plate.
Decken- 5 und Bodenplatte 6 weisen ein elektrisch leitendes Material auf und sind mit den Polen 3, 3' der Rundzellen 2 sowohl elektrisch, als auch durch Verschwei- ßen stoffschlüssig verbunden. Die Verbindungsstellen 4, also jene Bereich der Deckplatte 5, die mit den Polen einer Rundbatterie verbunden sind, bilden im Ausführungsbeispiel Vertiefungen 12 aus, was den oben beschriebenen Vorteil mit sich bringt, dass Decken- 5 und Bodenplatte 6 im Wesentlichen plane Außenseiten des Batteriepacks 1 ausbilden. Derartige Vertiefungen 12 können beispielsweise durch ein Tiefziehen in die Decken- 5 und Bodenplatte 6 eingebracht werden. Vorzugsweise bestehen Decken- 5 und/oder Bodenplatte 6 aus einem Nickelblech, das sich durch seine Vorzüge für eine stoffschlüssige Verbindung, insbesondere Verschweißung, mit den Polen einer Batterie des Batteriepacks auszeichnen kann. Die derartige Verbindung erweist sich nämlich als einfach herzustellen und sicher, sodass ein stabiles und leistungsfähiges Batteriepack 1 zur Verfügung gestellt werden kann. Ceiling 5 and bottom plate 6 have an electrically conductive material and are connected to the poles 3, 3 'of the round cells 2 both electrically, and by welding ßen cohesively connected. The connection points 4, that is to say those region of the cover plate 5 which are connected to the poles of a round battery, form depressions 12 in the exemplary embodiment, which brings about the advantage described above that ceiling 5 and bottom plate 6 have substantially planar outer sides of the battery pack 1 form. Such recesses 12 can be introduced, for example by deep drawing in the ceiling 5 and bottom plate 6. Ceiling 5 and / or bottom plate 6 are preferably made of a nickel sheet, which can be distinguished by its advantages for a cohesive connection, in particular welding, with the poles of a battery of the battery pack. Namely, such a connection proves to be easy to manufacture and secure, so that a stable and powerful battery pack 1 can be provided.
Wie in Figur 1 ersichtlich, ist zwischen der Deckplatte 5 und den Rundzellen 2 ein plattenförmiger elektrischer Isolator 10 vorgesehen. Gleiches wäre auch für die Bodenplatte 6 und Rundzellen 2 vorstellbar. Der Isolator 10 dient unter anderem der Stabilität des Batteriepacks 1 , indem dieser die Anordnung und Lage der Rundbatterien im Batteriepack 1 weitgehend fixiert. Zudem deckt der Isolator 10 die Bereiche der gewünschten oder erforderlichen Verbindungsstellen an den Batteriepolen 3, 3' wenigstens teilweise ab, wodurch ein sicheres und gezieltes Verbinden von Deck- 5 und Bodenplatte 6 mit den Polen 3, 3' einer Rundzelle 2 sichergestellt werden kann. As can be seen in FIG. 1, a plate-shaped electrical insulator 10 is provided between the cover plate 5 and the round cells 2. The same would be conceivable for the bottom plate 6 and 2 round cells. Among other things, the insulator 10 serves to stabilize the battery pack 1 by largely fixing the arrangement and position of the round batteries in the battery pack 1. In addition, the insulator 10 covers the areas of the desired or required connection points on the battery poles 3, 3 'at least partially, whereby a secure and targeted connection of cover 5 and bottom plate 6 with the poles 3, 3' of a round cell 2 can be ensured.
Die Rundzellen 2 des Batteriepack 1 liegen aneinander an, wodurch eine besonders hohe Packungsdichte der Batterien 2 und somit eine kompakte Ausgestaltung des Batteriepacks 1 erreicht werden. Zum Zwecke der Luftkühlung der Rundzellen sind über den, zwischen den Rundzellen 2 liegenden Lücken Öffnungen 1 1 vorgesehen, die durch den plattenförmigen Isolator 10 sowie die elektrisch leitenden Deck- 5 und Bodenplatte 6 ragen. Diese Öffnungen 1 1 sind derart positioniert und ausgebildet, dass Luft weitgehend ungehindert durch jene Zwischenräume strömen kann, die sich durch das Positionieren von Rundbatterien in parallel verlaufenden, zueinander versetzten Reihen ergeben. So kann selbst bei aneinander anschließend positio- nierten Rundzellen ein durch den Zwischenraum der Rundzellen und durch die, unter bzw. über den Zwischenräumen gegenüberliegende Öffnungen von Boden- und Deckplatte und Lücken ein im Wesentlichen durchgehender Luftstrom zu Kühlung erreicht werden. Somit kann, beispielsweise auch durch aktive Luftkühlung, die in den Figuren nicht näher dargestellt ist, erreicht werden, dass selbst dicht gepackte Batteriepacks 1 ausreichend gekühlt werden, wodurch eine konstante, gleichbleibende Leistung bzw. auch eine verlängerte Lebensdauer des Batteriepacks 1 sichergestellt wird. The round cells 2 of the battery pack 1 abut each other, whereby a particularly high packing density of the batteries 2 and thus a compact configuration of the battery pack 1 can be achieved. For the purpose of air cooling of the round cells openings 1 1 are provided on the lying between the circular cells 2 gaps, which protrude through the plate-shaped insulator 10 and the electrically conductive cover 5 and bottom plate 6. These openings 1 1 are positioned and formed so that air can flow largely unhindered through those gaps resulting from the positioning of round batteries in parallel staggered rows. Thus, even with consecutive posi- nierten round cells through the space between the round cells and through, opposite or above the interstices openings of the bottom and top plate and gaps a substantially continuous air flow to cooling can be achieved. Thus, it can be achieved, for example, by active air cooling, which is not shown in detail in the figures, that even tightly packed battery packs 1 are sufficiently cooled, whereby a constant, consistent performance or extended life of the battery pack 1 is ensured.
Zwischen den Rundzellen 2 und zwischen der Deck- 5 und Bodenplatte 6 sind mehrere Abstandhalter 7 vorgesehen. Die Abstandshalter 7 entsprechen in ihrer Form im Wesentlichen jener einer Rundzelle 2 und sind zudem elektrisch isolierend ausgeführt, um elektrische Kurzschlüsse zwischen Deck- 5 und Bodenplatte 6 hinten anzuhalten. Hierfür ist der Durchmesser der Abstandshalter 7 dem Durchmesser der Rundzellen 2 entsprechend gewählt. Between the circular cells 2 and between the cover 5 and bottom plate 6 a plurality of spacers 7 are provided. The spacers 7 essentially correspond in their shape to those of a round cell 2 and, moreover, are designed to be electrically insulating in order to stop electrical short circuits between the cover plate 5 and the bottom plate 6 at the rear. For this purpose, the diameter of the spacers 7 is selected to correspond to the diameter of the round cells 2.
Über den Abstandhalter 7 sind Deck- 5 und Bodenplatte 6 mechanisch miteinander verbunden, was den mechanischen Zusammenhalt des Batteriepacks 1 deutlich erhöht. Das erfindungsgemäße Batteriepack 1 ist daher besonders standfest bzw. damit für einen mobile Verwendung mit den dabei auftretenden Stoßbelastungen besonders geeignet. Die feste mechanische Verbindung zwischen Deck- 5 und Bodenplatte 6 wird erhöht, indem der Abstandshalter 7 an Deck- 5 und Bodenplatte 6 ansteht, wofür der Isolator 10 Ausnehmungen aufweist. Over the spacer 7 cover 5 and bottom plate 6 are mechanically connected to each other, which significantly increases the mechanical integrity of the battery pack 1. The battery pack 1 according to the invention is therefore particularly stable or therefore particularly suitable for mobile use with the impact loads occurring. The fixed mechanical connection between deck 5 and bottom plate 6 is increased by the spacer 7 is present at cover 5 and bottom plate 6, for which the insulator 10 has recesses.
Zudem weist die Deck- 5 und Bodenplatte 6 im Bereich des Abstandshalters 7 Öffnungen 8 auf, über welche Öffnungen 8 dem Abstandshalter 7 zugeordnete Haltemittel 16 etwa zur zusätzlichen Fixierung von Boden- 5 oder Deckplatte 6 an eine Rundzelle 2 oder zu einer anderwärtigen Befestigung, Montage und dergleichen des Batteriepacks 1 zugänglich sind. Bei dem erfindungsgemäßen Batteriepack 1 konnte sich als Abstandshalter 7 beispielsweise auch ein zylindrisch geformtes Stück Holz bzw. Kunststoffteil eignen, in das zur Aufnahme von Haltemittel 16 eine, die Längsachse zumindest teilweise durchdringende Bohrung 9 eingebracht wird. Dementsprechend werden derartige Haltemittel in diesem Ausführungsbeispiel vorzugsweise schraubenförmig ausgeführt, wie dies der Figur 5 entnommen werden kann und ragen in die Abstandshalter 7 ein. Auf diese Weise kann eine einfache und sichere Verbindung eines Batteriepacks 1 , etwa mit einem Gehäuse und/oder mit einem anderen erfindungsgemäßen Batteriepack, hergestellt werden. Die Abstandhalter 7 können beispielsweise der Unterstützung der Montage oder des Zusammenbaus eines Batteriepacks diesen oder auch für die Temperaturregelung des Batteriepacks 1 genutzt werden, daher sind sie bevorzugt im Bereich des Zentrums des Batteriepacks 1 angeordnet, da dort üblicherweise ein besonders hoher Bedarf an Ableitung von Wärme besteht. In addition, the cover 5 and bottom plate 6 in the region of the spacer 7 openings 8, via which openings 8 the spacers 7 associated holding means 16 approximately for additional fixation of bottom 5 or cover plate 6 to a round cell 2 or to another mounting, mounting and the like of the battery pack 1 are accessible. In the case of the battery pack 1 according to the invention, a cylindrically shaped piece of wood or plastic part could, for example, also be suitable as spacers 7, into which for receiving holding means 16 one, the Longitudinal axis at least partially penetrating bore 9 is introduced. Accordingly, in this embodiment, such holding means are preferably helical, as can be seen in FIG. 5, and protrude into the spacers 7. In this way, a simple and secure connection of a battery pack 1, for example with a housing and / or with another battery pack according to the invention, can be produced. The spacers 7 can be used, for example, to support the assembly or assembly of a battery pack or for the temperature control of the battery pack 1, so they are preferably arranged in the region of the center of the battery pack 1, since there is usually a particularly high demand for dissipation of heat consists.
Ersichtlich ist im Ausführungsbeispiel nach Figur 1 zudem, dass Deck- 5 und/oder Bodenplatte 6 je eine Kontaktfläche 5', 6' absteht, die wenigstens teilweise einen Mantel des Batteriepacks ausbildet. Nach Figur 1 wird aufgrund eines dadurch gebildeten Kantenschutzes bzw. einer teilweisen Ummantelung ein besonders standfestes Batteriepack 1 ermöglicht. Auch eine modulare Verwendung des erfindungsgemäßen Batteriepacks 1 kann sichergestellt werden, da mehrere dieser Batteriepacks 1 aneinander anschließend positioniert und über Kontaktflächen einfach miteinander in Serie geschalten werden können. Im Ausführungsbeispiel zeigt zudem auch die Isolierung 10 einen entsprechend ausgeformten Bereich 10', sodass sich diese Isolierung auch unter einem von Deck- und/oder Bodenplatte ausgebildeten Mantel befindet. It is apparent in the embodiment of Figure 1 also that cover 5 and / or bottom plate 6 each have a contact surface 5 ', 6' protrudes, which at least partially forms a jacket of the battery pack. According to Figure 1, a particularly stable battery pack 1 is due to an edge protection formed thereby or a partial sheathing possible. A modular use of the battery pack 1 according to the invention can also be ensured since a plurality of these battery packs 1 can subsequently be positioned against one another and can simply be connected to one another in series via contact surfaces. In addition, in the exemplary embodiment, the insulation 10 also has a correspondingly shaped region 10 ', so that this insulation is also located under a jacket formed by cover and / or base plate.
Fach den Figuren weist das Batteriepack 1 an gegenüberliegenden Mantelseiten je eine Kontaktfläche 6', 10' auf, um eine serielle Schaltung mehrerer dieser Batteriepacks 1 zu erleichtern. Selbstverständlich ist aber auch denkbar und im Sinne der Erfindung, das Batteriepack 1 mit einem anderen, etwa einem quadratischen, Grundriss auszuformen und/oder die Kontaktflächen 6', 10' an Stirnseiten oder an mehr als nur einer Mantelseite eines Batteriepacks 1 vorzusehen. Figur 3 zeigt eine Schnittansicht nach III-III der Fig. 2 - hier sind insbesondere die Verbindungsstellen 4, also jene Bereiche der Deckplatte 5, die mit den Polen einer Rundbatterie verbunden sind, sowie die dazugehörigen Vertiefungen 12 erkennbar. Zudem veranschaulicht Figur 3 einen Abstandshalter 7 mit einer Bohrung 9. Tray the figures, the battery pack 1 on opposite sides of the shell each have a contact surface 6 ', 10' in order to facilitate a serial connection of several of these battery packs 1. Of course, it is also conceivable and within the meaning of the invention to form the battery pack 1 with another, such as a square, floor plan and / or provide the contact surfaces 6 ', 10' on end faces or on more than one shell side of a battery pack 1. Figure 3 shows a sectional view according to III-III of Fig. 2 - here, in particular, the connection points 4, ie those areas of the cover plate 5, which are connected to the poles of a round battery, and the corresponding recesses 12 recognizable. In addition, FIG. 3 illustrates a spacer 7 with a bore 9.
Figur 4 zeigt eine Batterie 12, aufweisend mehrere Batteriepacks 1 , wobei die nebeneinander angeordneten Batteriepacks 1 über ihre Kontaktflächen 5', 6' elektrisch miteinander verbunden sind. Des Weiteren ist erkennbar, dass die Deck- 5 und Bodenplatten 6 nebeneinander angeordneter Batteriepacks 1 durch elektrisch isolierende Trägerplatten 13 abgedeckt sind, wobei diese Trägerplatten unter anderem Öffnungen 14 aufweisen, die oberhalb der Bohrungen 9 der Abstandshalter 7, sowie den zugehörigen Öffnungen 8 der Deck-5 und/oder Bodenplatte 6 liegen. Gleiches gilt für Öffnungen 15 der Trägerplatte 13, die über den Öffnungen 1 1 von Deck-5 und Bodenplatte 6 sowie Isolator 10 angeordnet und somit den Lücken zwischen aneinander anliegender Rundzellen 2 zugeordnet sind. Somit kann erfindungsgemäß eine besonders vorteilhafte Luftkühlung von übereinander angeordneten Batteriepacks 1 einer Batterie 12 gewährleistet werden, da die Öffnungen 1 1 und 15 derart übereinander liegen, dass vorteilhaft ein weitgehend unbehinderter, vertikal durch die Batterie verlaufender Luftstrom ermöglicht werden kann - und zwar unabhängig davon, wie Boden- 5 und Deckplatten 6 übereinander angeordneter Batteriepacks zueinander ausgerichtet sind, solange die Batteriepacks vertikal zueinander in Flucht liegen. Eine elektrische Kurzschlusstrennung der Batteriepacks 1 wird dadurch erreicht, indem die Trägerplatte 13 aus einem elektrisch isolierenden Material besteht. FIG. 4 shows a battery 12, comprising a plurality of battery packs 1, wherein the battery packs 1 arranged next to one another are electrically connected to one another via their contact surfaces 5 ', 6'. Furthermore, it can be seen that the cover 5 and bottom plates 6 juxtaposed battery packs 1 are covered by electrically insulating support plates 13, said support plates having, among other openings 14, above the holes 9 of the spacers 7, and the associated openings 8 of the deck -5 and / or bottom plate 6 lie. The same applies to openings 15 of the support plate 13, which are arranged above the openings 1 1 of deck 5 and bottom plate 6 and insulator 10 and thus associated with the gaps between adjacent round cells 2. Thus, according to the invention, a particularly advantageous air cooling of superimposed battery packs 1 of a battery 12 can be ensured, since the openings 11 and 15 are superimposed in such a way that advantageously a largely unobstructed air stream running vertically through the battery can be made possible - regardless of whether how base 5 and cover plates 6 stacked battery packs are aligned with each other as long as the battery packs are vertically aligned with each other. An electrical short circuit separation of the battery pack 1 is achieved by the support plate 13 is made of an electrically insulating material.
Insbesondere der Figur 5 ist zu entnehmen, dass die Trägerplatten 13 über Verbindungsmittel 16' mit Abstandshaltern 7 eines Batteriepacks 1 fest verbunden sind, wobei diese Verbindungen insbesondere als Schraubverbindung ausgeführt sind. Zudem ist der Figur 5 zu entnehmen, dass Haltemittel 16 zur zusätzlichen kraftschlüssigen Verbindung von Boden- 5 und Deckplatten 6 mit einem Abstandshalter 7 und somit zur verbesserten mechanischen Stabilität eines Batteriepacks genutzt werden können. In particular, Figure 5 it can be seen that the support plates 13 are fixedly connected via connecting means 16 'with spacers 7 of a battery pack 1, these compounds are designed in particular as a screw connection. In addition, it can be seen from FIG. 5 that retaining means 16 are provided with a spacer for the additional frictional connection of base 5 and cover plates 6 7 and thus can be used for improved mechanical stability of a battery pack.
Zudem zeigt Figur 5, dass die Lagen 17 nebeneinander angeordneter und in Serie geschalteter Batteriepacks 1 über biegsame Verbindungsleitungen 18 elektrisch miteinander verbunden sind, wobei diese Verbindungsleitungen 18 mit den jeweiligen Kontaktflächen 5' und 6' der entsprechenden, übereinander angeordneten Batteriepacks einer Batterie 12 stoffschlüssig, insbesondere durch Verschweißen, miteinander verbunden sind. In addition, FIG. 5 shows that the layers 17 of battery packs 1 arranged side by side and connected in series are electrically connected to one another via flexible connecting lines 18, these connecting lines 18 being firmly bonded to the respective contact surfaces 5 'and 6' of the corresponding superimposed battery packs of a battery 12. in particular by welding, are connected together.
Eine elektrische Überlastungen kann die Batterie 12 auf einfache Weise unterbinden, in dem die biegsame Verbindungsleitungen 18 als Schmelzsicherung ausgeführt sind. An electrical overloads can easily prevent the battery 12, in which the flexible connecting lines 18 are designed as a fuse.
In Figur 6 wird das Ausführungsbeispiel einer Batterie nach Fig. 4 in sozusagen aufgeklapptem Zustand ohne Trägerplatten 13 gezeigt, wobei die serielle elektrische Schaltung der Lagen 17 der Batterie, sowie die Vorteile der biegsamen Verbindungsleitungen 18 verbessert erkennbar sind. Vorzugsweise, da vergleichsweise einfach durchzuführen, werden die Trägerplatten 13 in diesem Ausführungsbeispiel lediglich auf den beiden endseitig angeordneten Lagen 17 und zwar auf diesen beidseitig angebracht. So können die zuvor beschriebenen erfindungsgemäßen Vorteile hinsichtlich Kompaktheit, modularer Einsetzbarkeit, Wartungsfreundlichkeit - etwa im Falle eines eventuell erforderlichen Austausche einzelner Batteriepacks 1 bzw. Lagen 17 - einer Batterie 12 besonders deutlich entnommen werden. In FIG. 6, the exemplary embodiment of a battery according to FIG. 4 is shown in the unfolded state without carrier plates 13, whereby the serial electrical circuit of the layers 17 of the battery and the advantages of the flexible connecting lines 18 can be seen in an improved manner. Preferably, since comparatively easy to perform, the support plates 13 are mounted in this embodiment only on the two end-side layers 17 and that on both sides. Thus, the advantages according to the invention described above in terms of compactness, modular applicability, ease of maintenance - such as in the case of a possibly required replacement of individual battery packs 1 or layers 17 - a battery 12 are particularly clearly removed.

Claims

P a t e n t a n s p r ü c h e Patent claims
1 . Batteriepack zur elektrischen Energieversorgung mit mehreren Rundzellen (2) in zueinander versetzt angeordneten Reihen, wobei die Rundzellen (2) elektrische Pole (3, 3') aufweisen, und mit einer zumindest teilweise über die Pole (3, 3') der Rundzellen (2) ragenden Deck- (5) und Bodenplatte (6), die mit den Rundzellen (2) für einen mechanischen Zusammenhalt verbunden sind und Öffnungen (1 1 ) zur Luftkühlung der Rundzellen (2) aufweisen, wobei die elektrisch leitenden Deck- (5) und Bodenplatte (6) mit den Polen der Rundzellen (2) sowohl elektrisch, als auch stoffschlüssig verbunden sind, dadurch gekennzeichnet, dass zwischen den Rundzellen (2) und zwischen der Deck- (5) und Bodenplatte (6) mindestens ein, insbesondere elektrisch isolierender, Abstandshalter (7) vorgesehen ist, der die Deck- (5) und Bodenplatte (6) zusätzlich zu den Rundzellen (2) mechanisch verbindet. 1 . Battery pack for electrical power supply with a plurality of round cells (2) arranged in mutually offset rows, wherein the circular cells (2) have electrical poles (3, 3 '), and with an at least partially via the poles (3, 3') of the round cells (2 ) decking (5) and bottom plate (6), which are connected to the round cells (2) for a mechanical cohesion and openings (1 1) for air cooling of the round cells (2), wherein the electrically conductive cover (5) and bottom plate (6) with the poles of the round cells (2) both electrically and materially connected, characterized in that between the round cells (2) and between the cover (5) and bottom plate (6) at least one, in particular electrically insulating, spacer (7) is provided, which mechanically connects the cover (5) and bottom plate (6) in addition to the round cells (2).
2. Batteriepack nach Anspruch 1 , dadurch gekennzeichnet, dass die Deck- (5) und Bodenplatte (6) im Bereich des Abstandshalters (7) Öffnungen (8) aufweisen, und dass dem Abstandshalter (7) über diese Öffnungen zugängliche Haltemittel (16) zur Befestigung des Batteriepacks (1 ) zugeordnet sind. 2. Battery pack according to claim 1, characterized in that the cover (5) and bottom plate (6) in the region of the spacer (7) openings (8), and in that the spacer (7) via these openings accessible holding means (16) associated with the attachment of the battery pack (1).
3. Batteriepack nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Abstandshalter (7) an Deck- (5) und Bodenplatte (6) ansteht. 3. Battery pack according to claim 1 or 2, characterized in that the spacer (7) on cover (5) and bottom plate (6) is present.
4. Batteriepack nach Anspruch 3, dadurch gekennzeichnet, dass der Durchmesser der Abstandshalter (7) dem Durchmesser mindestens einer Rundzelle (2) entspricht. 4. Battery pack according to claim 3, characterized in that the diameter of the spacers (7) corresponds to the diameter of at least one round cell (2).
5. Batteriepack nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass zwischen Deckplatte (5) und Rundzellen (2) und/oder zwischen Bodenplatte (6) und Rundzellen (2) je ein plattenförmiger elektrischer Isolator (10) vorgesehen ist, der die Bereiche zwischen deren Kontaktstellen wenigstens teilweise abdeckt. 5. Battery pack according to one of claims 1 to 4, characterized in that between the cover plate (5) and round cells (2) and / or between the bottom plate (6) and round cells (2) each have a plate-shaped electrical insulator (10) is provided, which covers the areas between the contact points at least partially.
6. Batteriepack nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Rundzellen (2) aneinander anliegen und die Öffnungen (1 1 ) zur Luftkühlung der Rundzellen (2) über den, zwischen den Rundzellen (2) liegenden Lücken (2) angeordnet sind. 6. Battery pack according to one of claims 1 to 5, characterized in that the circular cells (2) abut each other and the openings (1 1) for air cooling of the round cells (2) over the, between the round cells (2) lying gaps (2) are arranged.
7. Batteriepack nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass Deck- (5) und Bodenplatte (6) je mindestens eine abstehende Kontaktfläche (6' bzw. 10') ausbilden, die wenigstens teilweise das Batteriepack (1 ) mantelseitig begrenzen. 7. Battery pack according to one of claims 1 to 6, characterized in that deck (5) and bottom plate (6) each form at least one projecting contact surface (6 'and 10'), at least partially limit the battery pack (1) on the shell side ,
8. Batteriepack nach Anspruch 7, dadurch gekennzeichnet, dass das Batteriepack (1 ) an gegenüberliegenden Mantelseiten je eine Kontaktfläche (6' bzw. 10') aufweist. 8. Battery pack according to claim 7, characterized in that the battery pack (1) on opposite lateral sides each have a contact surface (6 'or 10').
9. Batteriepack nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Rundzellen (2) zwischen Deck- (5) und Bodenplatte (6) polaritätsgleich angeordnet sind. 9. Battery pack according to one of claims 1 to 8, characterized in that the round cells (2) between the cover (5) and bottom plate (6) are arranged polarity identical.
10. Batterie, aufweisend mehrere Batteriepacks (1 ) nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass nebeneinander angeordnete Batteriepacks (1 ) über ihre jeweiligen Kontaktflächen (6' bzw. 10') miteinander elektrisch verbunden sind. 10. Battery, comprising a plurality of battery packs (1) according to one of claims 1 to 9, characterized in that juxtaposed battery packs (1) via their respective contact surfaces (6 'and 10') are electrically connected to each other.
1 1 . Batterie nach Anspruch 10, dadurch gekennzeichnet, dass die Deck- (5) und Bodenplatten (6) nebeneinander angeordneter Batteriepacks (1 ) durch elektrisch isolierende Trägerplatten (13) abgedeckt sind, welche Trägerplatten (13) über Verbindungsmittel (16') mit Abstandshaltern (7) wenigstens eines Batteriepacks (1 ) fest verbunden sind. 1 1. Battery according to claim 10, characterized in that the cover (5) and bottom plates (6) of juxtaposed battery packs (1) by electrically insulating support plates (13) are covered, which support plates (13) via connecting means (16 ') with spacers ( 7) of at least one battery pack (1) are firmly connected.
12. Batterie nach Anspruch 10 oder 1 1 , dadurch gekennzeichnet, dass die Batterie mehrere Lagen nebeneinander angeordneter und in Serie geschalteter Batteriepacks (1 ) aufweist, wobei zwischen den Lagen je eine elektrisch isolierende Trägerplatte (13) vorgesehen ist und die Lagen der Batteriepacks (1 ) über biegsame Verbindungsleitungen (18) elektrisch miteinander verbunden sind. 12. Battery according to claim 10 or 1 1, characterized in that the battery has a plurality of layers of juxtaposed and series-connected battery packs (1), wherein between the layers depending an electrically insulating support plate (13) is provided and the layers of the battery packs ( 1) via flexible connecting lines (18) are electrically connected together.
13. Batterie nach Anspruch 12, dadurch gekennzeichnet, dass die biegsamen Verbindungsleitungen (18) als Schmelzsicherung ausgeführt sind. 13. Battery according to claim 12, characterized in that the flexible connecting lines (18) are designed as a fuse.
14. Batterie nach Anspruch 1 1 , 12 oder 13, dadurch gekennzeichnet, dass die Trägerplatte (13) aus einem elektrisch isolierenden Material besteht. 14. Battery according to claim 1 1, 12 or 13, characterized in that the carrier plate (13) consists of an electrically insulating material.
PCT/AT2013/050067 2012-03-16 2013-03-18 Battery and battery pack for supplying electrical power WO2013134808A1 (en)

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