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DE102009034195A1 - Capacitor i.e. electrolytic capacitor, has terminal lugs that are guided to anode and/or cathode respectively and provided with area of reduced cross-section, where area forms overcurrent fuse - Google Patents

Capacitor i.e. electrolytic capacitor, has terminal lugs that are guided to anode and/or cathode respectively and provided with area of reduced cross-section, where area forms overcurrent fuse Download PDF

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Publication number
DE102009034195A1
DE102009034195A1 DE102009034195A DE102009034195A DE102009034195A1 DE 102009034195 A1 DE102009034195 A1 DE 102009034195A1 DE 102009034195 A DE102009034195 A DE 102009034195A DE 102009034195 A DE102009034195 A DE 102009034195A DE 102009034195 A1 DE102009034195 A1 DE 102009034195A1
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DE
Germany
Prior art keywords
area
capacitor
anode
section
reduced cross
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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Withdrawn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
DE102009034195A
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German (de)
Inventor
Peter Fischer
Thomas Dr. Ebel
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.)
Fischer & Tausche Holding & Co KG GmbH
Original Assignee
Fischer & Tausche Holding & Co KG GmbH
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Priority to DE102009034195A priority Critical patent/DE102009034195A1/en
Publication of DE102009034195A1 publication Critical patent/DE102009034195A1/en
Withdrawn legal-status Critical Current

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    • 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
    • H01G2/16—Protection against electric or thermal overload with fusing elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/228—Terminals
    • H01G4/232—Terminals electrically connecting two or more layers of a stacked or rolled capacitor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/008—Terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/145—Liquid electrolytic capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

The capacitor has two laminar conductors that are separated from each other by a dielectric and form an anode (10) and a cathode (12). A terminal lug (14) is connected with the conductor forming the anode and another terminal lug (16) is connected with the conductor forming the cathode. The terminal lugs are guided to the anode and/or the cathode respectively. The terminal lugs are provided with an area of reduced cross-section, where the area forms an overcurrent fuse. The area is formed by stamping.

Description

Die Erfindung betrifft einen Kondensator mit zwei die Anode und die Kathode bildenden, durch ein Dielektrikum voneinander getrennten flächigen Leitern und wenigstens einem mit dem die Anode bildenden Leiter verbundenen Anschlussfähnchen und wenigstens einem mit dem die Kathode bildenden Leiter verbundenen Anschlussfähnchen.The The invention relates to a capacitor with two the anode and the Cathode forming, separated by a dielectric planar conductors and at least one with the anode forming conductor connected terminal latches and at least a connection tag connected to the conductor forming the cathode.

Derartige Kondensatoren sind in unterschiedlicher Ausgestaltung, insbesondere auch als Elektrolyt-Kondensator, bei dem die Kathode durch einen kontaktierten Elektrolyten, der sich beispielsweise in einem saugfähigen Papier befindet, bekannt.such Capacitors are in different configurations, in particular Also as an electrolytic capacitor, in which the cathode by a contacted electrolyte, for example, in an absorbent Paper is known.

Insbesondere dann, wenn eine Mehrzahl derartiger Kondensatoren parallel geschaltet sind, ist es von erwünscht, die Kondensatoren mit einer Überstromsicherung zu versehen, da bei Bildung eines Kurzschlusses in einem der Kondensatoren dieser die Funktionsunfähigkeit aller Kondensatoren zur Folge hat.Especially when a plurality of such capacitors are connected in parallel are, it is desirable, the capacitors with an overcurrent protection to be provided because when forming a short circuit in one of the capacitors this results in the inoperability of all capacitors Has.

Aus der DE 26 50 468 ist bereits ein Kondensator bekannt, der mit einer Überstromsicherung versehen ist. Diese Überstromsicherung ist jedoch in der Herstellung aufwendig.From the DE 26 50 468 already a capacitor is known, which is provided with an overcurrent protection. However, this overcurrent protection is expensive to manufacture.

Der Erfindung liegt damit die Aufgabe zugrunde, einen mit einer Überstromsicherung versehenen Kondensator zu schaffen, bei dem die Überstromsicherung einfach bewirkt werden kann.Of the Invention is therefore based on the object, one with an overcurrent protection provided capacitor, in which the overcurrent protection can be easily effected.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass das bzw. die zur Anode und/oder das bzw. die zur Kathode führenden Anschlussfähnchen mit einem eine Überstromschmelzsicherung bildenden Bereich mit verringertem Querschnitt versehen ist bzw. sind.According to the invention solves this problem in that the or to the anode and / or the leading to the cathode Anschlußfähnchen with an area forming an overcurrent fuse is provided with reduced cross-section or are.

Bei dem Kondensator handelt es sich vorzugsweise um einen Elektrolyt-Kondensator.at the capacitor is preferably an electrolytic capacitor.

Der Bereich mit verringertem Querschnitt kann durch einen Einschnitt oder eine Einkerbung in das bzw. die streifenförmig ausgebildete (n) Anschlussfähnchen gebildet sein. Alternativ kommt aber auch eine den Querschnitt des Anschlussfähnchens definiert verringernde Einprägung in dem Anschlussfähnchen in Betracht.Of the Area of reduced cross-section can be through an incision or a notch in the or the strip-shaped (n) Anschlussfähnchen be formed. Alternatively, but comes also defines the cross-section of the connecting lug diminishing imprint in the Anschlussfähnchen into consideration.

Da bei einem Schmelzen des Anschlussfähnchens in dem derart ausgebildeten Bereich sicherzustellen ist, das einander benachbarte Anschlussfähnchen sich nicht berühren, sind nebeneinander verlaufende Anschlussfähnchen vorzugsweise wenigstens in dem Bereich mit verringertem Querschnitt voneinander durch eine Isolierfolie voneinander getrennt.There at a melting of the Anschlußfähnchens in the so ensure that the trained area is adjacent to each other Terminal flags do not touch each other, are next to each other extending connecting lugs preferably at least in the area of reduced cross section from one another Insulating foil separated from each other.

Die Erfindung wird im Folgenden anhand einer Zeichnung erläutert, deren einzige Figur einen derartigen Kondensator schematisch darstellt.The Invention is explained below with reference to a drawing, the single figure of which schematically illustrates such a capacitor.

Der Kondensator besteht aus zwei voneinander getrennten flächigen Leitern, von denen der eine die Anode 10 und der andere die Kathode 12 bildet. Jeder der Leiter ist mit einem Anschlussfähnchen 14, 16 verbunden.The capacitor consists of two separate planar conductors, one of which is the anode 10 and the other the cathode 12 forms. Each of the ladder is with a connecting flag 14 . 16 connected.

Dabei ist (wenigstens) eines der Anschlussfähnchen (14) mit einer – in der Zeichnung sichelförmig ausgebildeten – Ausnehmung versehen, so dass das Anschlussfähnchen in dem Bereich 18 einen verringerten Querschnitt hat. Der Querschnitt ist dabei in dem Bereich 18 derart gewählt, dass das Material des Anschlussfähnchens (regelmäßig Aluminium) bei Erreichen eines maximal zulässigen Stroms schmilzt, so dass kein weiterer Strom durch das Anschlussfähnchen hindurchgeleitet wird.In this case (at least) one of the connecting lugs ( 14 ) provided with a - sickle-shaped in the drawing - recess, so that the Anschlussdähnchen in the area 18 has a reduced cross-section. The cross section is in the area 18 chosen such that the material of the Anschlußfähnchens (regular aluminum) melts upon reaching a maximum allowable current, so that no further current is passed through the Anschlussdähnchen.

Da die mechanische Festigkeit des Anschlussfähnchens 14 bei einem Schmelzen im Bereich 18 nicht mehr sichergestellt ist, sind benachbarte Anschlussfähnchen bevorzugt wenigstens in dem Bereich 18 voneinander durch eine Isolierfolie 20 getrennt.Because the mechanical strength of the Anschlussfähnchens 14 when melting in the area 18 is no longer ensured, adjacent Anschlussfähnchen are preferred at least in the area 18 from each other through an insulating film 20 separated.

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte PatentliteraturCited patent literature

  • - DE 2650468 [0004] - DE 2650468 [0004]

Claims (5)

Kondensator mit zwei die Anode (10) und die Kathode (12) bildenden, durch ein Dielektrikum voneinander getrennten flächigen Leitern und wenigstens einem mit dem die Anode (10) bildenden Leiter verbundenen Anschlussfähnchen (14) und wenigstens einem mit dem die Kathode (12) bildenden Leiter verbundenen Anschlussfähnchen (16), dadurch gekennzeichnet, dass das bzw. die zur Anode (10) und/oder das bzw. die zur Kathode (12) führenden Anschlussfähnchen (14, 16) mit einem eine Überstromschmelzsicherung bildenden Bereich (18) mit verringertem Querschnitt versehen ist bzw. sind.Capacitor with two the anode ( 10 ) and the cathode ( 12 ), separated by a dielectric planar conductors and at least one with which the anode ( 10 ) connecting conductors ( 14 ) and at least one with which the cathode ( 12 ) connecting conductors ( 16 ), characterized in that the anode (s) ( 10 ) and / or the cathode (s) ( 12 ) leading connecting flag ( 14 . 16 ) with an area forming an overcurrent fuse ( 18 ) is provided with reduced cross-section or are. Kondensator nach Anspruch 1, dadurch gekennzeichnet, dass der Kondensator ein Elektrolyt-Kondensator ist.Capacitor according to Claim 1, characterized that the capacitor is an electrolytic capacitor. Kondensator nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Bereich (18) durch einen Einschnitt oder eine Einkerbung in das bzw. die streifenförmig ausgebildeten Anschlussfähnchen gebildet ist.Capacitor according to Claim 1 or 2, characterized in that the region ( 18 ) is formed by an incision or a notch in the or the strip-shaped Anschlußfähnchen. Kondensator nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Bereich (18) durch eine Einprägung gebildet ist.Capacitor according to Claim 1 or 2, characterized in that the region ( 18 ) is formed by an impression. Kondensator nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass nebeneinander verlaufende Anschlussfähnchen wenigstens in dem Bereich (18) mit verringertem Querschnitt voneinander durch eine Isolierfolie (20) voneinander getrennt sind.Capacitor according to one of the preceding claims, characterized in that side by side connecting lugs at least in the area ( 18 ) of reduced cross section from each other through an insulating film ( 20 ) are separated from each other.
DE102009034195A 2009-07-22 2009-07-22 Capacitor i.e. electrolytic capacitor, has terminal lugs that are guided to anode and/or cathode respectively and provided with area of reduced cross-section, where area forms overcurrent fuse Withdrawn DE102009034195A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102009034195A DE102009034195A1 (en) 2009-07-22 2009-07-22 Capacitor i.e. electrolytic capacitor, has terminal lugs that are guided to anode and/or cathode respectively and provided with area of reduced cross-section, where area forms overcurrent fuse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009034195A DE102009034195A1 (en) 2009-07-22 2009-07-22 Capacitor i.e. electrolytic capacitor, has terminal lugs that are guided to anode and/or cathode respectively and provided with area of reduced cross-section, where area forms overcurrent fuse

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DE102009034195A1 true DE102009034195A1 (en) 2011-02-17

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DE102009034195A Withdrawn DE102009034195A1 (en) 2009-07-22 2009-07-22 Capacitor i.e. electrolytic capacitor, has terminal lugs that are guided to anode and/or cathode respectively and provided with area of reduced cross-section, where area forms overcurrent fuse

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2650468A1 (en) 1976-11-04 1978-05-11 Licentia Gmbh Self healing, wound capacitor - with outside metal layers separated by insulating layer and joined to terminals
DE8114739U1 (en) * 1981-05-19 1982-10-28 Robert Bosch Gmbh, 7000 Stuttgart SWITCH-OFF DEVICE FOR AN ELECTRICAL CAPACITOR
US4635163A (en) * 1984-05-08 1987-01-06 Asea Jumet Societe Anonyme Self-regenerating capacitor protected by athermal circuit-breaker and a process for its manufacture
DE3817903A1 (en) * 1988-05-26 1989-11-30 Siemens Ag ELECTRIC CAPACITOR
JP2004273511A (en) * 2003-03-05 2004-09-30 Nichicon Corp Electrolytic capacitor with fuse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2650468A1 (en) 1976-11-04 1978-05-11 Licentia Gmbh Self healing, wound capacitor - with outside metal layers separated by insulating layer and joined to terminals
DE8114739U1 (en) * 1981-05-19 1982-10-28 Robert Bosch Gmbh, 7000 Stuttgart SWITCH-OFF DEVICE FOR AN ELECTRICAL CAPACITOR
US4635163A (en) * 1984-05-08 1987-01-06 Asea Jumet Societe Anonyme Self-regenerating capacitor protected by athermal circuit-breaker and a process for its manufacture
DE3817903A1 (en) * 1988-05-26 1989-11-30 Siemens Ag ELECTRIC CAPACITOR
JP2004273511A (en) * 2003-03-05 2004-09-30 Nichicon Corp Electrolytic capacitor with fuse

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ON Later submitted papers
OP8 Request for examination as to paragraph 44 patent law
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20120201