DE19910430C1 - Electrolytic capacitor has aluminum strips arranged in regions where anode and cathode foils protrude beyond paper strips respectively - Google Patents

Electrolytic capacitor has aluminum strips arranged in regions where anode and cathode foils protrude beyond paper strips respectively

Info

Publication number
DE19910430C1
DE19910430C1 DE1999110430 DE19910430A DE19910430C1 DE 19910430 C1 DE19910430 C1 DE 19910430C1 DE 1999110430 DE1999110430 DE 1999110430 DE 19910430 A DE19910430 A DE 19910430A DE 19910430 C1 DE19910430 C1 DE 19910430C1
Authority
DE
Germany
Prior art keywords
anode
winding
electrolytic capacitor
foil
cathode
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.)
Expired - Fee Related
Application number
DE1999110430
Other languages
German (de)
Inventor
Peter Fischer
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.)
F & T Kondensatoren GmbH
Original Assignee
F & T Kondensatoren 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 F & T Kondensatoren GmbH filed Critical F & T Kondensatoren GmbH
Priority to DE1999110430 priority Critical patent/DE19910430C1/en
Application granted granted Critical
Publication of DE19910430C1 publication Critical patent/DE19910430C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004Details
    • H01G9/04Electrodes or formation of dielectric layers thereon

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

Capacitor is made by winding a strip made of a shaped, roughened anode foil (10), cathode foil (12) and two paper strips (14) between the electrodes. Anode foil protrudes beyond the paper strip on one side of the winding, and cathode foil protrudes on the other side. Aluminum strips (18,20), whose thickness corresponds to that of a winding strip, are arranged in the regions where the anode and cathode foils protrude respectively.

Description

Die Erfindung betrifft einen Elektrolyt-Kondensator mit einem durch eine formierte, aufgerauhte Anodenfolie, eine Kathodenfolie und wenigstens einer zwischen der Anodenfo­ lie und der Kathodenfolie angeordneten Papierbahn gebil­ deten Wickel.The invention relates to an electrolytic capacitor one through a formed, roughened anode foil, one Cathode foil and at least one between the anode fo lie and the cathode foil arranged paper web gebil the wrap.

Bei derartigen Elektrolyt-Kondensatoren kommt der elek­ trischen und thermischen Kontaktierung der Anode und der Kathode eine besondere Bedeutung zu. With such electrolytic capacitors, the elec trical and thermal contacting of the anode and Cathode has a special meaning.  

Aus der JP 09017695A, in: Patent Abstracts of Japan, 1997, ist ein Aufbau eines Elektrolyt-Kondensators bekannt, der zur Optimierung der Kontaktierung der Anschlüsse mit zwei gegeneinander versetzten Komponenten versehen ist.From JP 09017695A, in: Patent Abstracts of Japan, 1997, a structure of an electrolytic capacitor is known which to optimize the contacting of the connections with two staggered components is provided.

Der Erfindung liegt die Aufgabe zugrunde, einen Elektrolyt-Kondensator im Hinblick auf die elektri­ sche und die thermische Kontaktierung zu verbessern.The invention has for its object a Electrolytic capacitor with regard to the electri cal and improve the thermal contact.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruchs 1 gelöst.According to the invention, this object is achieved through the features of Claim 1 solved.

Ein bevorzugtes Ausführungsbeispiel bildet den Gegenstand von Anspruch 2.A preferred embodiment forms the subject of claim 2.

Bei dem erfindungsgemäß ausgebildeten Elektrolyt-Konden­ sator bildet die eine Stirnseite des Wickels eine geschlossene, metallische Anodenfläche und die andere Stirnseite eine geschlossene, metallische Kathodenfläche. Diese Flächen können in idealer Weise zum elektrischen Anschluß verwendet werden, sie dienen zugleich als Wärme­ ableitflächen.In the electrolyte condensers designed according to the invention sator forms one end of the winding one closed, metallic anode surface and the other A closed, metallic cathode surface at the front. These surfaces can be ideal for electrical Connection are used, they also serve as heat discharge surfaces.

Die Erfindung wird im folgenden anhand einer Zeichnung erläutert. Dabei zeigt die einzige Figur einen solchen Elektrolyt-Kondensator in einer schematischen Darstel­ lung.The invention is described below with reference to a drawing explained. The only figure shows one Electrolytic capacitor in a schematic representation lung.

Der Elektrolyt-Kondensator ist durch Aufwickeln einer durch eine formierte, aufgerauhte Anodenfolie 10, eine Kathodenfolie 12 und zwischen der Anodenfolie 10 und der Kathodenfolie 12 angeordneten Papierbahnen 14 gebildeten Wickelbahn zu einem Wickel 16 geformt. Die Anodenfolie 10 ragt auf der einen Seite des Wickels 16 über die Papier­ bahn 14 hinaus, die Kathodenfolie 12 ragt auf der anderen Seite des Wickels 16 über die Papierbahn 14 hinaus.The electrolytic capacitor is formed into a winding 16 by winding a winding path formed by a formed, roughened anode foil 10 , a cathode foil 12 and paper webs 14 arranged between the anode foil 10 and the cathode foil 12 . The anode foil 10 extends on one side of the reel 16 on the web of paper 14 addition, the cathode foil 12 extends on the other side of the coil 16 through the paper web 14 addition.

Ein erstes Aluminiumband 18, dessen Dicke derjenigen der Summe der Dicke der Papierbahn 14 und der der Elektroden­ folien 10, 12 entspricht, ist in dem Bereich, in dem die Anodenfolie 10 über die Papierbahn 14 hinausragt, angeordnet, ein zweites Aluminiumband 20, dessen Dicke derjenigen der Summe der Dicke der Papierbahn 14 und der der Kathodenfolie 12 entspricht, ist in dem Bereich, in dem die Kathodenfolie 12 über die Papierbahn 14 hinaus­ ragt, angeordnet.A first aluminum strip 18 , the thickness of which corresponds to the sum of the thickness of the paper web 14 and that of the electrode foils 10 , 12 , is arranged in the region in which the anode foil 10 projects beyond the paper web 14 , a second aluminum strip 20 , the thickness of which that corresponds to the sum of the thickness of the paper web 14 and that of the cathode foil 12 is arranged in the region in which the cathode foil 12 projects beyond the paper web 14 .

Um eine bessere elektrische Kontaktierung zu bewirken, ist die Anodenfolie 10 in ihrem äußeren, mit dem ersten Aluminiumband 18 kontaktierenden Randbereich nicht aufge­ rauht.In order to effect a better electrical contact, the anode foil is not roughened up in its outer, contacting with the first aluminum tape 18 edge region 10 degrees.

Diese Ausgestaltung eines Elektrolyt-Kondensators erlaubt die Schaffung von geschlossenen, metallischen Seitenflä­ chen, die sich sowohl für die Schaffung elektrischer Anschlüsse, als auch für die Wärmeabfuhr ideal darstel­ len.This configuration of an electrolytic capacitor allows the creation of closed, metallic side surfaces chen, which is both for the creation of electrical Connections, as well as ideal for heat dissipation len.

Claims (2)

1. Elektrolyt-Kondensator, der durch Aufwickeln einer Wickelbahn, die aus einer formierten, aufgerauhten Anodenfolie (10), einer Kathodenfolie (12) und zwei zwischen den Elektrodenfolien (10) (12) angeordneten Papierbahnen (14) besteht, gebildet ist, dadurch gekennzeichnet, daß
  • 1. die Anodenfolie (10) auf der einen Seite des Wickels (16) über die Papierbahn (14) hinausragt,
  • 2. die Kathodenfolie (12) auf der anderen Seite des Wickels (16) über die Papierbahn (14) hinausragt,
  • 3. ein erstes Aluminiumband (18), dessen Dicke derje­ nigen einer Wickelbahn entspricht, in dem Bereich, in dem die Anodenfolie (10) über die Papierbahn (14) hin­ ausragt, angeordnet ist, und
  • 4. ein zweites Aluminiumband (20), dessen Dicke derje­ nigen einer Wickelbahn entspricht, in dem Bereich, in dem die Kathodenfolie (12) über die Papierbahn (14) hinausragt, angeordnet ist.
1. electrolytic capacitor, which is formed by winding a wound web, consisting of a brief break, roughened anode foil (10), a cathode foil (12) and two between the electrode foils (10) (12) are arranged webs (14), characterized characterized in that
  • 1. the anode foil ( 10 ) projects on one side of the winding ( 16 ) over the paper web ( 14 ),
  • 2. the cathode foil ( 12 ) projects beyond the paper web ( 14 ) on the other side of the winding ( 16 ),
  • 3. a first aluminum strip ( 18 ), the thickness of which corresponds to that of a winding track, is arranged in the region in which the anode foil ( 10 ) projects beyond the paper track ( 14 ), and
  • 4. a second aluminum strip ( 20 ), the thickness of which corresponds to a winding path, is arranged in the region in which the cathode foil ( 12 ) projects beyond the paper path ( 14 ).
2. Elektrolyt-Kondensator nach Anspruch 1, dadurch gekennzeichnet, daß die Anodenfolie (10) in ihrem äuße­ ren, mit dem ersten Aluminiumband (18) kontaktierenden Randbereich nicht aufgerauht ist.2. Electrolytic capacitor according to claim 1, characterized in that the anode foil ( 10 ) in its outer ren, with the first aluminum strip ( 18 ) contacting edge region is not roughened.
DE1999110430 1999-03-10 1999-03-10 Electrolytic capacitor has aluminum strips arranged in regions where anode and cathode foils protrude beyond paper strips respectively Expired - Fee Related DE19910430C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1999110430 DE19910430C1 (en) 1999-03-10 1999-03-10 Electrolytic capacitor has aluminum strips arranged in regions where anode and cathode foils protrude beyond paper strips respectively

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1999110430 DE19910430C1 (en) 1999-03-10 1999-03-10 Electrolytic capacitor has aluminum strips arranged in regions where anode and cathode foils protrude beyond paper strips respectively

Publications (1)

Publication Number Publication Date
DE19910430C1 true DE19910430C1 (en) 2000-05-31

Family

ID=7900302

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1999110430 Expired - Fee Related DE19910430C1 (en) 1999-03-10 1999-03-10 Electrolytic capacitor has aluminum strips arranged in regions where anode and cathode foils protrude beyond paper strips respectively

Country Status (1)

Country Link
DE (1) DE19910430C1 (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP 09017695 A - in: Patents Abstracts of Japan, 1997 *

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee