WO2000028558A1 - Capacitor housing - Google Patents

Capacitor housing Download PDF

Info

Publication number
WO2000028558A1
WO2000028558A1 PCT/DE1999/003577 DE9903577W WO0028558A1 WO 2000028558 A1 WO2000028558 A1 WO 2000028558A1 DE 9903577 W DE9903577 W DE 9903577W WO 0028558 A1 WO0028558 A1 WO 0028558A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
cover
sealing element
tube
base
Prior art date
Application number
PCT/DE1999/003577
Other languages
German (de)
French (fr)
Inventor
Hubertus Goesmann
Reiner Majer
Joachim Nassal
Original Assignee
Epcos Ag
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 Epcos Ag filed Critical Epcos Ag
Priority to JP2000581660A priority Critical patent/JP2002529930A/en
Priority to EP99960881A priority patent/EP1141980A1/en
Publication of WO2000028558A1 publication Critical patent/WO2000028558A1/en

Links

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
    • H01G2/103—Sealings, e.g. for lead-in wires; Covers

Definitions

  • the present invention relates to a capacitor housing made of a cylindrical tube or housing, which is closed at at least one of its two ends by a cover or a base and in which at least one winding is accommodated.
  • Capacitor housings of this type have hitherto been sealed by housing edges clawed in a sealing element, by casting the tube at its ends or by folding and soldering.
  • the cylindrical tube or housing has a folded edge at least at one end, which extends in the direction of the central axis of the cylindrical tube or housing,
  • a coupling ring braced the folded edge against the lid or bottom and thereby pressed the sealing element.
  • the bracing against the lid or bottom can be done by clamping or screwing or by means of a bayonet lock.
  • the sealing element By bending the pipe edge on the cover and / or base and the union ring subsequently provided over the pipe edge, the sealing element is thus firmly against the cover or clamped the bottom of the capacitor housing. It is essential to the present invention that, on the one hand, the folded edge of the tube already fixes the sealing element introduced into, for example, a groove in the cover, and that, on the other hand, by tightening the coupling ring over the respective end of the tube or housing, the folded edge of the latter against the sealing element clamps or presses the cover or base so that there is a highly reliable seal in the cover or base area of the capacitor housing.
  • the capacitor housing according to the invention can have such a collar ring which braces the sealing element together with a folded edge of the tube or housing at one end thereof, for example on the cover or on the bottom, or also on both ends of this, that is on the base and on the cover, exhibit.
  • the coupling ring Since the coupling ring is clamped to the pipe, it can also firmly connect the cover or the bottom to the pipe by tightening the coupling ring.
  • Fig. 1 is a sectional view of a capacitor with the capacitor housing and the invention
  • FIG. 2 shows a detail X from FIG. 1.
  • a capacitor housing made of a metal, for example aluminum, tube 1, a bottom 2 and a cover 3, three coils 4 of a capacitor are accommodated.
  • the coils 4 are mounted on an inner tube 5, through which if a threaded rod 6 extends.
  • This threaded rod 6 is provided at its ends with heads 7, 8, which together with the bottom 2 or the lid 3 close the interior of the aluminum tube 1 at both ends.
  • Seals 9, 10 are located between the heads 7, 8 and the base 2 or the cover 3. Seals 11, 12 are likewise inserted into corresponding grooves in the base 2 or the cover 3. The seals 11, 12 are fixed, fixed and sealed in the grooves in the base 2 or the cover 3 by a folded edge 13 of the tube 1.
  • insulation 16 is also provided within the aluminum tube 1, which prevents the windings 4 from making electrical contact with the aluminum tube 1.

Abstract

The invention relates to a capacitor housing consisting of a cylindrical pipe (1) or housing which on at least one of its ends is closed by a lid (3) or base (2) and which houses at least one winding (4). The cylindrical pipe (1) or housing has a hemmed edge (13) which extends towards the central axis of the cylindrical pipe (1) and fixes a sealing element in the lid (3) or base (2). A union ring (14, 15) clamps the hemmed edge (13) and sealing element (11, 12) against the lid (3) or base (2).

Description

Beschreibung description
KondensatorgehäuseCapacitor housing
Die vorliegende Erfindung betrifft ein Kondensatorgehäuse aus einem zylindrischen Rohr oder Gehäuse, das an mindestens einem seiner beiden Enden durch einen Deckel bzw. einen Boden abgeschlossen ist und in das wenigstens ein Wickel aufgenom- men ist.The present invention relates to a capacitor housing made of a cylindrical tube or housing, which is closed at at least one of its two ends by a cover or a base and in which at least one winding is accommodated.
Kondensatorgehäuse dieser Art werden bisher durch in einem Dichtungselement verkrallte Gehäuseränder, durch Vergießen des Rohres an seinen Enden oder durch Falzen und Löten abge- dichtet.Capacitor housings of this type have hitherto been sealed by housing edges clawed in a sealing element, by casting the tube at its ends or by folding and soldering.
Es ist Aufgabe der vorliegenden Erfindung, ein Kondensatorgehäuse zu schaffen, das eine zuverlässige Abdichtung seines Innenraumes ermöglicht.It is an object of the present invention to provide a capacitor housing which enables a reliable sealing of its interior.
Diese Aufgabe wird bei einem Kondensatorgehäuse der eingangs genannten Art erfindungsgemäß dadurch gelöst, daßThis object is achieved in a capacitor housing of the type mentioned in the present invention in that
- das zylindrische Rohr bzw. Gehäuse an wenigstens einem Ende einen umgelegten Rand aufweist, der sich in Richtung auf die Mittenachse des zylindrischen Rohres bzw. Gehäuses erstreckt,the cylindrical tube or housing has a folded edge at least at one end, which extends in the direction of the central axis of the cylindrical tube or housing,
- der umgelegte Rand dabei ein Dichtungselement fixiert und- The folded edge fixes a sealing element and
- ein Überwurfring den umgelegten Rand gegen den Deckel bzw. Boden verspannt und dabei das Dichtungselement verpreßt.- A coupling ring braced the folded edge against the lid or bottom and thereby pressed the sealing element.
Das Verspannen gegen den Deckel bzw. Boden kann dabei durch Klemmen oder Schrauben oder aber auch mittels eines Bajonettverschlusses erfolgen.The bracing against the lid or bottom can be done by clamping or screwing or by means of a bayonet lock.
Durch das Umbiegen des Rohrrandes am Deckel und/oder Boden und den anschließend über dem Rohrrand vorgesehenen Überwurfring wird so das Dichtungselement fest gegen den Deckel bzw. den Boden des Kondensatorgehäuses verspannt. Wesentlich an der vorliegenden Erfindung ist dabei, daß einerseits bereits der umgelegte Rand des Rohres das in beispielsweise eine Rille des Deckels eingebrachte Dichtungselement dort fixiert und daß andererseits durch Verspannen des Überwurfrings über dem jeweiligen Ende des Rohres oder Gehäuses der umgelegte Rand von diesem das Dichtungselement gegen den Deckel bzw. Boden verspannt bzw. preßt, so daß eine in hohem Maße zuverlässige Abdichtung im Deckelbereich bzw. Bodenbereich des Kondensa- torgehäuses gegeben ist.By bending the pipe edge on the cover and / or base and the union ring subsequently provided over the pipe edge, the sealing element is thus firmly against the cover or clamped the bottom of the capacitor housing. It is essential to the present invention that, on the one hand, the folded edge of the tube already fixes the sealing element introduced into, for example, a groove in the cover, and that, on the other hand, by tightening the coupling ring over the respective end of the tube or housing, the folded edge of the latter against the sealing element clamps or presses the cover or base so that there is a highly reliable seal in the cover or base area of the capacitor housing.
Das erfindungsgemäße Kondensatorgehäuse kann dabei einen derartigen, das Dichtungselement verspannenden Überwurfring zusammen mit einem umgelegten Rand des Rohres oder Gehäuses an einem Ende von diesem, also beispielsweise am Deckel oder am Boden, oder auch an beiden Enden von diesem, also am Boden und am Deckel, aufweisen.The capacitor housing according to the invention can have such a collar ring which braces the sealing element together with a folded edge of the tube or housing at one end thereof, for example on the cover or on the bottom, or also on both ends of this, that is on the base and on the cover, exhibit.
Da der Überwurfring mit dem Rohr verspannt ist, kann er zudem auch den Deckel bzw. den Boden fest mit dem Rohr verbinden, indem der Überwurfring fest angezogen wird.Since the coupling ring is clamped to the pipe, it can also firmly connect the cover or the bottom to the pipe by tightening the coupling ring.
Nachfolgend wird die Erfindung anhand der Zeichnungen näher erläutert. Es zeigen:The invention is explained in more detail below with reference to the drawings. Show it:
Fig. 1 eine Schnittdarstellung eines Kondensators mit dem erfindungsgemäßen Kondensatorgehäuse undFig. 1 is a sectional view of a capacitor with the capacitor housing and the invention
Fig. 2 eine Einzelheit X von Fig. 1.FIG. 2 shows a detail X from FIG. 1.
In einem Kondensatorgehäuse aus einem aus Metall, beispielsweise Aluminium, bestehenden Rohr 1, einem Boden 2 und einem Deckel 3 sind drei Wickel 4 eines Kondensators untergebracht. Selbstverständlich können in dem Kondensatorgehäuse auch weniger oder mehr Wickel 4 vorgesehen werden. Die Wickel 4 sind auf einem Innenrohr 5 angebracht, durch das sich gegebenen- falls eine Gewindestange 6 erstreckt. Diese Gewindestange 6 ist an ihren Enden mit Köpfen 7, 8 versehen, die zusammen mit dem Boden 2 bzw. dem Deckel 3 den Innenraum des Aluminium- Rohres 1 an seinen beiden Enden abschließen.In a capacitor housing made of a metal, for example aluminum, tube 1, a bottom 2 and a cover 3, three coils 4 of a capacitor are accommodated. Of course, fewer or more coils 4 can also be provided in the capacitor housing. The coils 4 are mounted on an inner tube 5, through which if a threaded rod 6 extends. This threaded rod 6 is provided at its ends with heads 7, 8, which together with the bottom 2 or the lid 3 close the interior of the aluminum tube 1 at both ends.
Zwischen den Köpfen 7, 8 und dem Boden 2 bzw. dem Deckel 3 befinden sich Dichtungen 9, 10. Ebenso sind Dichtungen 11, 12 in entsprechende Rillen des Bodens 2 bzw. des Deckels 3 eingelegt. Die Dichtungen 11, 12 werden in den Rillen des Bodens 2 bzw. des Deckels 3 durch einen umgelegten Rand 13 des Rohres 1 festgelegt, fixiert und abgedichtet.Seals 9, 10 are located between the heads 7, 8 and the base 2 or the cover 3. Seals 11, 12 are likewise inserted into corresponding grooves in the base 2 or the cover 3. The seals 11, 12 are fixed, fixed and sealed in the grooves in the base 2 or the cover 3 by a folded edge 13 of the tube 1.
Auf dem Boden 2 und/oder dem Deckel 3 sind Überwurfringe 14, 15 verspannt, die den umgelegten Rand 13 des Rohres 1 gegen das Dichtelement 11 bzw. 12 (vgl. hierzu die Einzelheit X) pressen. Dadurch ist eine zuverlässige Abdichtung im Bereich des Bodens 2 bzw. des Deckels 3 an beiden Enden des Rohres 1 gewährleistet .On the base 2 and / or the cover 3, coupling rings 14, 15 are clamped, which press the folded edge 13 of the tube 1 against the sealing element 11 or 12 (cf. detail X). This ensures a reliable seal in the area of the bottom 2 or the cover 3 at both ends of the tube 1.
Zur elektrischen Isolierung ist innerhalb des Aluminium-Rohres 1 noch eine Isolierung 16 vorgesehen, die die Wickel 4 an einem elektrischen Kontakt mit dem Aluminium-Rohr 1 hindert. For electrical insulation, insulation 16 is also provided within the aluminum tube 1, which prevents the windings 4 from making electrical contact with the aluminum tube 1.

Claims

Patentansprüche claims
1. Kondensatorgehäuse aus einem zylindrischen Rohr (1) oder Gehäuse, das an mindestens einem seiner beiden Enden durch einen Deckel (3) bzw. einen Boden (2) abgeschlossen ist und in das wenigstens ein Wickel (4) aufgenommen ist, dadurch gekennzeichnet, daß1. capacitor housing made of a cylindrical tube (1) or housing, which is closed at at least one of its two ends by a cover (3) or a bottom (2) and in which at least one winding (4) is received, characterized in that that
- das zylindrische Rohr (1) bzw. Gehäuse an wenigstens einem Ende einen umgelegten Rand (13) aufweist, der sich in Richtung auf die Mittenachse des zylindrischen Rohres bzw. Gehäuses erstreckt,- The cylindrical tube (1) or housing has at least one end a folded edge (13) which extends in the direction of the central axis of the cylindrical tube or housing,
- der umgelegte Rand (13) dabei ein Dichtungselement (11, 12) fixiert und - ein Überwurfring (14, 15) den umgelegten Rand (13) gegen den Deckel (3) bzw. Boden (2) verspannt und dabei das Dichtungselement (11, 12) verpreßt.- The folded edge (13) fixes a sealing element (11, 12) and - A collar (14, 15) braces the folded edge (13) against the cover (3) or bottom (2) and thereby the sealing element (11 , 12) pressed.
2. Kondensatorgehäuse nach Anspruch 1, dadurch gekennzeichnet, daß daß das zylindrische Rohr (1) oder Gehäuse aus Metall besteht.2. Capacitor housing according to claim 1, characterized in that the cylindrical tube (1) or housing consists of metal.
3. Kondensatorgehäuse nach Anspruch 1 oder 2 , dadurch gekennzeichnet, daß in den Innenraum des Rohres (1) oder Gehäuses ein oder mehrere Wickel (4) aufgenommen sind. 3. capacitor housing according to claim 1 or 2, characterized in that in the interior of the tube (1) or housing one or more coils (4) are added.
PCT/DE1999/003577 1998-11-10 1999-11-10 Capacitor housing WO2000028558A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000581660A JP2002529930A (en) 1998-11-10 1999-11-10 Capacitor casing
EP99960881A EP1141980A1 (en) 1998-11-10 1999-11-10 Capacitor housing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19851870.6 1998-11-10
DE1998151870 DE19851870A1 (en) 1998-11-10 1998-11-10 Capacitor housing

Publications (1)

Publication Number Publication Date
WO2000028558A1 true WO2000028558A1 (en) 2000-05-18

Family

ID=7887339

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/003577 WO2000028558A1 (en) 1998-11-10 1999-11-10 Capacitor housing

Country Status (4)

Country Link
EP (1) EP1141980A1 (en)
JP (1) JP2002529930A (en)
DE (1) DE19851870A1 (en)
WO (1) WO2000028558A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7576972B2 (en) 2003-11-28 2009-08-18 Maxwell Technologies, Inc. Sealed electro-technical device comprising two sealing joints and methods therefor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4837730B2 (en) * 2006-04-27 2011-12-14 株式会社小松製作所 Capacitor module

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB804794A (en) * 1954-03-30 1958-11-26 Hunt Capacitors Ltd A Improvements in or relating to the sealing of capacitors and other electrical components
GB816639A (en) * 1956-04-30 1959-07-15 Enrico Giannini Mochi Method of and means for sealed housing of electrical apparatus
DE3642069A1 (en) * 1986-12-09 1988-06-16 Rudolf Klaschka Capacitor having a closure cap

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1098612B (en) * 1956-04-30 1961-02-02 Enrico Giannini Mochi Method for sealing an electrical component or device in a container
DE7533929U (en) * 1975-10-25 1977-04-14 Standard Elektrik Lorenz Ag, 7000 Stuttgart REST-RESISTANT CAPACITOR
DE19642462C2 (en) * 1996-10-15 1999-11-18 F & T Kondensatoren Gmbh Form of cup electrolytic capacitors that improve heat dissipation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB804794A (en) * 1954-03-30 1958-11-26 Hunt Capacitors Ltd A Improvements in or relating to the sealing of capacitors and other electrical components
GB816639A (en) * 1956-04-30 1959-07-15 Enrico Giannini Mochi Method of and means for sealed housing of electrical apparatus
DE3642069A1 (en) * 1986-12-09 1988-06-16 Rudolf Klaschka Capacitor having a closure cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7576972B2 (en) 2003-11-28 2009-08-18 Maxwell Technologies, Inc. Sealed electro-technical device comprising two sealing joints and methods therefor

Also Published As

Publication number Publication date
EP1141980A1 (en) 2001-10-10
JP2002529930A (en) 2002-09-10
DE19851870A1 (en) 2000-05-11

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