DE102009034197B4 - electrolytic capacitor - Google Patents

electrolytic capacitor Download PDF

Info

Publication number
DE102009034197B4
DE102009034197B4 DE200910034197 DE102009034197A DE102009034197B4 DE 102009034197 B4 DE102009034197 B4 DE 102009034197B4 DE 200910034197 DE200910034197 DE 200910034197 DE 102009034197 A DE102009034197 A DE 102009034197A DE 102009034197 B4 DE102009034197 B4 DE 102009034197B4
Authority
DE
Germany
Prior art keywords
housing
cup
electrolytic capacitor
volume
capacitor
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
DE200910034197
Other languages
German (de)
Other versions
DE102009034197A1 (en
Inventor
Peter Fischer
Thomas 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
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 Fischer & Tausche Holding & Co KG GmbH filed Critical Fischer & Tausche Holding & Co KG GmbH
Priority to DE200910034197 priority Critical patent/DE102009034197B4/en
Publication of DE102009034197A1 publication Critical patent/DE102009034197A1/en
Application granted granted Critical
Publication of DE102009034197B4 publication Critical patent/DE102009034197B4/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
    • H01G2/10—Housing; Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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 OR LIGHT-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
    • H01G9/08—Housing; Encapsulation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
    • H01G9/08—Housing; Encapsulation
    • H01G9/12—Vents or other means allowing expansion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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

Abstract

Elektrolyt-Kondensator mit einem ersten becherförmigen Gehäuse (18) und einem das erste Gehäuse (18) aufnehmenden, druckdicht ausgebildeten zweiten becherförmigen Gehäuse (20), dessen Volumen mindestens das Doppelte des Volumens des ersten Gehäuses (18) beträgt, wobei in dem sich zwischen dem ersten und dem zweiten Gehäuse (18, 20) ausbildenden Raum ein bei einem Platzen des ersten Gehäuses (18) austretendes Gas bindendes Material (22) angeordnet ist, dadurch gekennzeichnet, dass das Material (22) ein offenporiger Titanschaum ist.Electrolytic capacitor with a first cup-shaped housing (18) and a second cup-shaped housing (20) which accommodates the first housing (18) and is pressure-tight, the volume of which is at least twice the volume of the first housing (18), in which between a gas-binding material (22) emerging when the first housing (18) bursts is arranged in the space forming the first and the second housing (18, 20), characterized in that the material (22) is an open-pore titanium foam.

Description

Die Erfindung betrifft einen Elektrolytkondensator.The invention relates to an electrolytic capacitor.

Elektrolytkondensatoren sind seit langem bekannt. Insbesondere bei Verwendung in explosionsgeschützten Räumen, ist es von Bedeutung, dass das bei einem Platzen eines Kondensators austretenden Gase nicht in die Umgebung gelangen. Dies gilt insbesondere für Wasserstoff.Electrolytic capacitors have long been known. Especially when used in explosion-proof rooms, it is important that the gases escaping when a capacitor bursts does not enter the environment. This is especially true for hydrogen.

Aus der JP 1-175 713 A ist es bekannt, den Kondensator mit einem ersten bescherartigen Gehäuse und einem diesen aufnehmenden zweiten becherartigen Gehäuse zu versehen, aus der JP 5-13 289 A ist es weiter bekannt, in dem zweiten Gehäuse ein etwa aus dem ersten Gehäuse austretendes Gas bindendes Material anzuordnen.From the JP 1-175 713 A It is known to provide the capacitor with a first scherartigen housing and a receiving this second cup-like housing, from the JP 5-13289A it is also known to arrange in the second housing an approximately emerging from the first housing gas binding material.

Der Erfindung liegt die Aufgabe zugrunde, einen Elektrolytkondensator zu schaffen, bei dem sichergestellt ist, dass bei einem Platzen des Kondensators ein Austritt von Gasen zuverlässig vermieden wird.The invention has for its object to provide an electrolytic capacitor in which it is ensured that when a burst of the capacitor leakage of gases is reliably prevented.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, dass das Material ein offenporiger Titanschaum ist, was den Vorteil der großen Oberfläche und damit einer großen Bindungsfähigkeit hat.According to the invention, this object is achieved in that the material is an open-pored titanium foam, which has the advantage of large surface area and thus a high binding capacity.

Die Erfindung wird anhand einer Zeichnung erläutert. Dabei zeigt die einzige Figur eine Querschnittsansicht durch einen derartigen Kondensator.The invention will be explained with reference to a drawing. The single figure shows a cross-sectional view through such a capacitor.

Der Kondensator ist in üblicher Weise durch zwei durch ein Dielektrikum voneinander getrennte flächige Leiter gebildet, die jeweils mit wenigstens einem nach außen geführten Anschlussfähnchen 14, 16 versehen sind. Anode, Kathode und Dielektrikum werden von einem ersten becherförmigen Gehäuse 18 aufgenommen.The capacitor is formed in the usual way by two separate from each other by a dielectric sheet conductors, each with at least one outwardly led Anschlußfähnchen 14 . 16 are provided. Anode, cathode and dielectric are from a first cup-shaped housing 18 added.

Die Zeichnung verdeutlicht weiter, dass das erste becherförmige Gehäuse 18 von einem zweiten, druckdicht ausgebildeten zweiten becherförmigen Gehäuse 20 aufgenommen wird, dessen Volumen mindestens das Doppelte des Volumens des ersten Gehäuses 18 beträgt.The drawing further clarifies that the first cup-shaped housing 18 from a second, pressure-tight second cup-shaped housing 20 is taken, whose volume is at least twice the volume of the first housing 18 is.

Bei einem Platzen des ersten Bechers (ein solches Platzen kann durch Überhitzung verursacht werden) wird aus dem ersten Gehäuse ein Gas austreten. Dieses Gas wird von dem in dem zweiten Becher verbleibenden Volumen aufgenommen und kann (insbesondere auch im Hinblick auf die druckdichte Ausbildung des zweiten Gehäuses) nicht nach außen gelangen.If the first cup bursts (such bursting may be caused by overheating), a gas will leak from the first case. This gas is taken up by the volume remaining in the second cup and can not escape to the outside (in particular also with regard to the pressure-tight formation of the second housing).

In dem zwischen den beiden Gehäusen 18, 20 ausgebildeten Raum ist ein offenporiger Titanschaum 22 angeordnet, der das bei einem Platzen des ersten Gehäuses 18 austretende Gas, insbesondere Wasserstoff, bindet.In the between the two housings 18 . 20 trained space is an open-pored titanium foam 22 arranged, which at a burst of the first housing 18 escaping gas, especially hydrogen, binds.

Die erfindungsgemäße Ausbildung mit einem solchen Wasserstoff bindenden Material hat zur Folge, dass der Wasserstoff gebunden wird, also keinen Druck auf den zweiten Becher ausüben kann, so dass selbst bei einer mechanischen Belastung des zweiten Bechers der Wasserstoff nicht in die Umgebung gelangen kann.The inventive construction with such a hydrogen-bonding material has the consequence that the hydrogen is bound, so can not exert pressure on the second cup, so that even with a mechanical load on the second cup of hydrogen can not get into the environment.

Claims (1)

Elektrolyt-Kondensator mit einem ersten becherförmigen Gehäuse (18) und einem das erste Gehäuse (18) aufnehmenden, druckdicht ausgebildeten zweiten becherförmigen Gehäuse (20), dessen Volumen mindestens das Doppelte des Volumens des ersten Gehäuses (18) beträgt, wobei in dem sich zwischen dem ersten und dem zweiten Gehäuse (18, 20) ausbildenden Raum ein bei einem Platzen des ersten Gehäuses (18) austretendes Gas bindendes Material (22) angeordnet ist, dadurch gekennzeichnet, dass das Material (22) ein offenporiger Titanschaum ist.Electrolytic capacitor with a first cup-shaped housing ( 18 ) and one the first housing ( 18 ) receiving, pressure-tight second cup-shaped housing ( 20 ) whose volume is at least twice the volume of the first housing ( 18 ), in which between the first and the second housing ( 18 . 20 ) forming a room at a burst of the first housing ( 18 ) escaping gas binding material ( 22 ), characterized in that the material ( 22 ) is an open-pored titanium foam.
DE200910034197 2009-07-22 2009-07-22 electrolytic capacitor Expired - Fee Related DE102009034197B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE200910034197 DE102009034197B4 (en) 2009-07-22 2009-07-22 electrolytic capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910034197 DE102009034197B4 (en) 2009-07-22 2009-07-22 electrolytic capacitor

Publications (2)

Publication Number Publication Date
DE102009034197A1 DE102009034197A1 (en) 2011-01-27
DE102009034197B4 true DE102009034197B4 (en) 2014-08-14

Family

ID=43383942

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200910034197 Expired - Fee Related DE102009034197B4 (en) 2009-07-22 2009-07-22 electrolytic capacitor

Country Status (1)

Country Link
DE (1) DE102009034197B4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015008942U1 (en) * 2015-03-03 2016-04-05 Ebm-Papst Mulfingen Gmbh & Co. Kg Multifunction housing for electronic components

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586107A (en) * 1984-06-05 1986-04-29 Gen Electric Dry capacitor circuit interrupter
JPH01175713A (en) * 1987-12-29 1989-07-12 Hitachi Condenser Co Ltd Capacitor with protection device
US4992910A (en) * 1989-11-06 1991-02-12 The Evans Findings Company, Inc. Electrical component package
JPH0513289A (en) * 1991-07-04 1993-01-22 Matsushita Electric Ind Co Ltd Aluminum electrolytic capacitor
JPH05243103A (en) * 1992-02-28 1993-09-21 Elna Co Ltd Manufacture of electrolytic capacitor
DE10105863C1 (en) * 2001-02-08 2002-10-31 Miele & Cie Electrical capacitor with over-pressure protection has connection between capacitor winding and external terminal tags ruptured in response to internal over-pressure
JP2003031447A (en) * 2001-07-18 2003-01-31 Canon Inc Electrolytic capacitor

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4586107A (en) * 1984-06-05 1986-04-29 Gen Electric Dry capacitor circuit interrupter
JPH01175713A (en) * 1987-12-29 1989-07-12 Hitachi Condenser Co Ltd Capacitor with protection device
US4992910A (en) * 1989-11-06 1991-02-12 The Evans Findings Company, Inc. Electrical component package
JPH0513289A (en) * 1991-07-04 1993-01-22 Matsushita Electric Ind Co Ltd Aluminum electrolytic capacitor
JPH05243103A (en) * 1992-02-28 1993-09-21 Elna Co Ltd Manufacture of electrolytic capacitor
DE10105863C1 (en) * 2001-02-08 2002-10-31 Miele & Cie Electrical capacitor with over-pressure protection has connection between capacitor winding and external terminal tags ruptured in response to internal over-pressure
JP2003031447A (en) * 2001-07-18 2003-01-31 Canon Inc Electrolytic capacitor

Also Published As

Publication number Publication date
DE102009034197A1 (en) 2011-01-27

Similar Documents

Publication Publication Date Title
DE102006041939A1 (en) Electrical implementation
DE2837642A1 (en) DOUBLE PRESSURE SENSOR WITH VARIABLE CAPACITY
DE102018005733A1 (en) Glass-metal leadthrough
DE102009034197B4 (en) electrolytic capacitor
DE102008054991A1 (en) Differential
DE102014016601A1 (en) Component with component reinforcement and feedthrough
EP1730752B1 (en) Multi-chamber system serving as a liquid equalizing tank and use thereof
DE19933154A1 (en) Power feedthrough and discharge lamp
DE102005014077A1 (en) Interconnenctor for high-temperature fuel cells
EP1573089A2 (en) Pressure electrolyser and cell frame for said electrolyser
EP2923423B1 (en) Fluid-tight line feedthrough
EP2802766B1 (en) Actuator module having a multi-layer actuator arranged in a housing and a continuously extremely low leakage current at the actuator surface
DE102015118146B4 (en) Coolant connection element and circuit board with cooling channel
EP0090436A2 (en) Flange seal
DE102013203601A1 (en) Sealing component for sealing connection between aperture in housing of cell and link at tubing system of accumulator in e.g. electrical vehicle, has protection diaphragm formed with sealing body and break section in connection area
EP1358692A1 (en) Fuel cells
DE1639402A1 (en) Controllable semiconductor component
EP3100600B1 (en) Electric module comprising a tensioning device
DE3600991A1 (en) HIGH PRESSURE DISCHARGE LAMP AND METHOD FOR THEIR PRODUCTION
DE662244C (en) Vacuum vessel
DE202010005246U1 (en) Gas-insulated medium-voltage disconnector
DE102021210795A1 (en) Switching device with a bellows
DE102023120198A1 (en) Pressure measuring device for use in an explosive environment
DE102013217477A1 (en) Pressure Transmitter
DE102021102444A1 (en) Pressure equalization device and housing enclosing the pressure equalization device

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
R018 Grant decision by examination section/examining division
R020 Patent grant now final
R082 Change of representative

Representative=s name: LOBEMEIER, MARTIN LANDOLF, DR., DE

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee