EP1920448A2 - Dispositif comportant au moins un condensateur a deux couches - Google Patents

Dispositif comportant au moins un condensateur a deux couches

Info

Publication number
EP1920448A2
EP1920448A2 EP06778389A EP06778389A EP1920448A2 EP 1920448 A2 EP1920448 A2 EP 1920448A2 EP 06778389 A EP06778389 A EP 06778389A EP 06778389 A EP06778389 A EP 06778389A EP 1920448 A2 EP1920448 A2 EP 1920448A2
Authority
EP
European Patent Office
Prior art keywords
double
module
capacitor
layer capacitor
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP06778389A
Other languages
German (de)
English (en)
Inventor
Andreas Fuchs
Markus Matthias Gaudenz
Alexander Hahn
Karsten Rechenberg
Manfred Waidhas
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP1920448A2 publication Critical patent/EP1920448A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/14—Protection against electric or thermal overload
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/04—Hybrid capacitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/14—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors
    • H01G11/16—Arrangements or processes for adjusting or protecting hybrid or EDL capacitors against electric overloads, e.g. including fuses
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/02—Details
    • H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
    • H02H3/023—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order by short-circuiting
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/16—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for capacitors
    • 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
    • Y02E60/13—Energy storage using capacitors

Definitions

  • the invention relates to a device having at least one double-layer capacitor according to the preamble of claim 1. Specifically, it is about the appropriate training of a protective device for a double-layer capacitor or a module of several Doppel harshkonden- sators.
  • Intrinsic protection devices of double-layer capacitors and modules constructed therefrom are not known.
  • the only safety feature to date has been a bursting valve integrated in the housing wall, which opens at high pressure and allows the electrolyte to escape, including gaseous decomposition products.
  • the invention is a self-or intrinsically safe
  • Protective device for double-layer capacitors or modules designed for this purpose is understood to mean, in particular, that the protective independent of external initiation, by directly exploiting effects that could lead to a claim. Such effects can be, for example, overpressure, temperature, chemical reaction, overvoltage or the like, and according to the invention are used to bring the capacitor or the module into the safe state. Accepted and also specifically exploited is that the double-layer capacitor becomes inoperative, ie, if necessary, it is also irreversibly destroyed. The new protection device thus works as a one-time fuse.
  • Double-layer capacitors can not be compared with the electrostatic capacitors as electrochemical energy stores and, above all, must not be equated with them in terms of safety. Due to their high energy density and the specific, anhydrous and combustible electrolytes, the failure of double-layer capacitors (DSC) always creates the risk of fire, possibly resulting in greater secondary damage. For this reason in particular, the practical use of double-layer condensers (DSC) for industrial applications, in particular in passenger transport vehicle technology, has hitherto been limited.
  • the invention is therefore based on the finding that such damage can only be ruled out by the guarantee of intrinsic safety of the double-layer capacitors (DSC) or the modules constructed therewith, and thus their industrial use becomes possible.
  • FIG. 2 shows the plan view of a double-layer capacitor according to FIG. 1 from above
  • FIG. 3 shows the principle of a fuse element for a group of double-layer capacitors
  • FIG. 4 shows the installation of the fuse element according to FIG. 3 in a circuit with modules of double-layer capacitors
  • FIG. 6 shows a perspective view of a double-layer capacitor with a security element according to FIG. 5,
  • Figure 7 shows another principle of a fuse element
  • FIGS. 8 to 10 show different applications of the principle from FIG. 7,
  • FIG. 11 shows a further alternative for a security element which is suitable for double-layer capacitors
  • FIGS 15 to 17 electrical circuits that are suitable for modules with double-layer capacitors (DSC).
  • DSC double-layer capacitors
  • capacitor is always understood as a double-layer capacitor.
  • 1 denotes a cup for accommodating a double-layer capacitor, which is terminated at the upper edge by a lid 2.
  • the lid 2 is over a Insulation 3 electrically separated from the cup 1, wherein an electrical connection 4 is provided centrally in the lid 2.
  • the cup 1 is connected in an insulating manner with the lid 2 via a scraped edge.
  • an element 5 made of a low melting alloy.
  • a gap 6 is formed. If the melting point of the element 5 is reached by an unexpected increase in temperature, the alloy of the element 5 liquefies and flows into the gap 6. Thus, an electrical contact between + PoI and -Pol of the capacitor is produced, which leads to U- berbrucken the capacitor module ,
  • FIG. 3 shows a security element made up of two partial elements 10 and 20, which likewise exploits temperature effects.
  • one subelement 10 has a terminal 11 which is connected to the positive pole of the capacitor circuit and has three fingers 12, 13 and 14 opposite one another.
  • the other sub-element 20 has a terminal 21 which is connected to the negative pole of the capacitor circuit and opposite two fingers 22 and 23 has.
  • the fingers 12 to 14 and 22 and 23 of the elements 10 and 20 are also made of a material or alloy which melt low. Normally, the fingers engage each other, whereby no electrical contact is achieved. As soon as the material of the fuse melts due to an increase in temperature, an electrical contact is established and the system is switched off.
  • FIG. 5 shows a capacitor cup 50 with an associated lid 51.
  • an elastically deflected sub-element 52 On the base of the condenser cup 50 is an elastically deflected sub-element 52, which normally points inwards.
  • the cup 50 is introduced into a metallic arrangement 53 whose base extends at a distance from the cup bottom and is connected to the positive potential. If, for example, by a temperature effect, the elastic element expands - or by internal pressure increase - and jumps from the inwardly curved state in the outwardly arched state, creates an electrical contact and the capacitor assembly can be turned off.
  • a predetermined breaking point 56 is located here on the circumference of the cup 50, with a metallic part 57 extending at a distance therefrom. As soon as the predetermined breaking point responds and the bursting valve opens, a short-circuit occurs which causes the module to switch off.
  • FIG. 7 Another principle of the electrical see contact is shown.
  • the cup 70 of the capacitor module with associated lid 71 which are both electrically insulated from each other.
  • an element 72 with a recess 73 is covered by an insulation layer 74.
  • a counter element 75 which is designed as a mandrel, can move as a result of an external influence and penetrates with its tip the insulation layer 74. For example, this can be done by increasing the pressure.
  • FIGS. 8 to 10 Different realizations are shown in FIGS. 8 to 10, wherein the element 75 is in each case located in a cavity 76. Specifically in FIG.
  • a liquid boiling at low temperature is arranged in the cavity 76, which liquid expands as the temperature increases, thereby activating the element 75.
  • a coil spring 78 is located in the cavity 76, a coil spring 78.
  • Below the element 75 is either the insulating polymer layer or a melting at low temperature metal, the soil either melts or softens at least when the temperature increases and thus activates the element 75. When the cup bottom is touched, thus forming a short circuit.
  • FIG. 11 An alternative is given in FIG.
  • the structure largely corresponds to that of Figure 8, and has a cup 100 and a lid 101, which are electrically insulated from each other by an insulating layer 102.
  • the insulating layer 102 consists of an insulator material which melts at low temperature, so that the layer melts due to temperature increases and a direct electrical contact is produced.
  • a groove / wedge connection is present, so that a response of this fuse causes the slightest temperature increases
  • FIGS. 12 to 14 show that individual double-layer capacitors can be connected in different ways. For example, a parallel circuit according to Figure 12 and 13 or a series connection corresponding to Figure 14 is possible. In all cases, the cups 100, 100 'of the double-layer capacitors are arranged between metallic rails 120 and 130.
  • At least one element 142 consists of bimetal and deforms when the temperature rises.
  • a temperature-sensitive current conductor 145 is here so arranged between the two potential-leading rails 120 and 130 or 130 ', that upon reaching a predetermined temperature, a short circuit occurs.
  • FIGS. 15 to 17 in each case two limiting elements 161, 172 or 182 are connected in parallel in order to be able to execute redundant monitoring operations. In principle, however, for this function - with less redundancy requirements - only one element in each case is required.
  • the required monitoring function is achieved by push-pull connection of at least one blocking diode 151 to a thyristor 152.
  • the diode limited in the blocking voltage ignites the thyristor 152.
  • at least one varistor 161 is provided in addition to the thyristor 152, which ignites the thyristor 152 in the event of overvoltage.
  • FIG. 17 in which, instead of the two varistors 161 from FIG. 16, at least one zener diode 171 is connected in parallel to the thyristor 152.
  • the ignition of the thyristor 152 may also, as shown in Fig. 17, be controlled by other sensors, e.g. to respond to temperature or pressure, done.
  • individual modules of the entire energy storage can be monitored by means of a voltage and temperature detection hardware and out of the energy storage are distanced in case of error.
  • such sensors are implemented as a switch 155 which opens in the event of an error and is followed by a fuse 156, with a further switch 158.
  • light-emitting diodes 181 with upstream resistors 182 are present, via which a visual display can take place.
  • one opening switch 155 per DSK module 150 is advantageously present.
  • the components 151, 161, 171 of FIGS. 15 to 17 may also be connected in parallel in the event of an error.
  • a fuse response may occur without a separate electrical power supply, i. This is also true for the circuits according to FIGS. 15 to 17, since no comparators or other comparator circuits are required here, but instead switch through the components used on account of their specific characteristics. If necessary, this can also be achieved without thyristors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)
  • Secondary Cells (AREA)
  • Protection Of Static Devices (AREA)

Abstract

L'invention concerne un dispositif comportant au moins un condensateur à deux couches ou au moins un module composé d'au moins un condensateur à deux couches, qui présente un dispositif de protection effectuant une déconnexion de protection à blocage automatique. A cet effet, le dispositif de protection utilise comme force indicatrice des grandeurs physiques et/ou chimiques, comme la pression, la température, la réaction chimique, la surtension ou similaire, afin de faire passer le condensateur à deux couches ou le module d'un premier état dangereux à un second état sûr.
EP06778389A 2005-09-01 2006-08-30 Dispositif comportant au moins un condensateur a deux couches Withdrawn EP1920448A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005041604A DE102005041604A1 (de) 2005-09-01 2005-09-01 Vorrichtung mit wenigstens einem Doppelschichtkondensator
PCT/EP2006/065806 WO2007025980A2 (fr) 2005-09-01 2006-08-30 Dispositif comportant au moins un condensateur a deux couches

Publications (1)

Publication Number Publication Date
EP1920448A2 true EP1920448A2 (fr) 2008-05-14

Family

ID=37762885

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06778389A Withdrawn EP1920448A2 (fr) 2005-09-01 2006-08-30 Dispositif comportant au moins un condensateur a deux couches

Country Status (3)

Country Link
EP (1) EP1920448A2 (fr)
DE (1) DE102005041604A1 (fr)
WO (1) WO2007025980A2 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE503257T1 (de) 2006-09-28 2011-04-15 Siemens Ag Energiespeichermodul
DE102007042085B3 (de) 2007-09-05 2009-03-05 Continental Automotive Gmbh Energiespeichersystem
DE102010041601A1 (de) 2010-09-29 2012-03-29 Siemens Aktiengesellschaft Vorrichtung zur Energiespeicherung für ein elektrisches Triebfahrzeug
DE102013204518A1 (de) * 2013-03-15 2014-09-18 Robert Bosch Gmbh Verfahren und Vorrichtung zur Erhöhung der Sicherung beim Gebrauch von Batteriemodulen
DE102013204523A1 (de) * 2013-03-15 2014-09-18 Robert Bosch Gmbh Verfahren und Vorrichtung zur Erhöhung der Sicherung beim Gebrauch von Batteriemodulen
DE212016000300U1 (de) * 2016-12-21 2019-08-07 Siemens Aktiengesellschaft Kondensator mit integriertem Kurzschließer, insbesondere für zweipolige Sub-Module eines Mehrstufenumrichters, sowie einen mehrphasigen Mehrstufenumrichter mit einem solchen Kondensator

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DE1764858A1 (de) * 1968-08-20 1971-08-05 Siemens Ag Abschaltvorrichtung fuer einen in einem Gehaeuse eingebauten elektrischen Kondensator
DE2825377C2 (de) * 1978-06-09 1984-01-12 Siemens AG, 1000 Berlin und 8000 München Elektrischer Wickelkondensator
DE3231864C2 (de) * 1982-08-26 1985-01-10 Ero-Starkstrom Kondensatoren Gmbh, 8300 Landshut Elektrischer Becherkondensator mit Überdruck-Abschaltsicherung
EP0168370B1 (fr) * 1984-05-08 1989-01-25 ABB Jumet, S.A. Condensateur auto-régénérable protégé par coupe-circuit thermique et son procédé de fabrication
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JPS6278730U (fr) * 1985-11-07 1987-05-20
CA1291227C (fr) * 1986-06-04 1991-10-22 Thomas A. Murphy Coupure d'alimentation de circuit a condensateur
JPS6441197A (en) * 1987-08-07 1989-02-13 Tosoh Corp Thin film electroluminescent element
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Also Published As

Publication number Publication date
DE102005041604A1 (de) 2007-03-15
WO2007025980A2 (fr) 2007-03-08
WO2007025980A3 (fr) 2007-06-14

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