EP0995244B1 - Überspannungsableiter mit äusserer kurzschlusseinrichtung - Google Patents
Überspannungsableiter mit äusserer kurzschlusseinrichtung Download PDFInfo
- Publication number
- EP0995244B1 EP0995244B1 EP98945012A EP98945012A EP0995244B1 EP 0995244 B1 EP0995244 B1 EP 0995244B1 EP 98945012 A EP98945012 A EP 98945012A EP 98945012 A EP98945012 A EP 98945012A EP 0995244 B1 EP0995244 B1 EP 0995244B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrode
- surge arrester
- short
- electrodes
- area
- 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 - Lifetime
Links
- 230000001012 protector Effects 0.000 title 1
- 125000006850 spacer group Chemical group 0.000 claims description 23
- 239000012212 insulator Substances 0.000 claims description 9
- 238000009413 insulation Methods 0.000 claims 1
- 210000002105 tongue Anatomy 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/14—Means structurally associated with spark gap for protecting it against overload or for disconnecting it in case of failure
Definitions
- the invention is in the field of electrical components and is in the design of a surge arrester apply with an external short-circuit device is provided.
- Such short-circuit devices are with both two-electrode and three-electrode surge arresters in use.
- Such arresters usually have a cylindrical shape, the electrodes being arranged insulated from one another.
- the short-circuit devices serve to protect the surge arrester with long-term loads; a short-circuit device usually contains one at higher temperatures fusible construction element, with the help of which the two Electrodes or the center electrode and one or both End electrodes are short-circuited.
- each Arm of the spring clip is designed as a contact tab, that protrudes diagonally over the spacing plastic body and in the event of a short circuit, the end face of the respective End electrode contacted in the edge area (US 4,984,125 A, Fig. 1a and 1b).
- Short-circuit devices known for Surge arrester with two electrodes as well as with three electrodes can be used. These short circuit devices also consist of a resilient bracket with two free ends that axially abut the end electrodes. At Surge arrester with two electrodes is between the a free end of the resilient shorting bar and the associated Electrode arranged a fusible insulating film, which in the event of a short circuit from the contact area of the free end of the Shorting bracket is pierced.
- This contact area can consist of two flat contact tabs like a fork, provided the surge arrester with axially soldered connection wires is provided (FR 2 621 184 A).
- the shorting bar contacts with three electrodes the center electrode and lies with its free Ends at the end faces of the two end electrodes axially below Interposition of an off-center in the edge area of the each electrode arranged insulating film (US 5,029,302 A, WO 90/13904).
- a specially shaped injection molded part is provided, that is saddle-like on the arrester and on both ends with a stirrup-like approach, the foot area of each stirrup being the actual one Spacer for the springy contact tabs of the spring clip forms.
- Each contact tab has two tongues, the two contact tongues having a common base area have, through a narrow slot from each other are separated, arranged on the eccentric to the respective end electrode Apply spacers and the spacer radially tower (US 5, 187,634 A).
- the invention is based on the object a robust short-circuit device that is as simple as possible to create that also for surge arresters is suitable with axially welded connecting wires and a high AC load capacity (max. 30 Amp / 15 min per discharge path) having.
- the invention provides that the contact tabs between them the middle area of the First electrode release that the spacer between the common base area of the contact tabs and the End face of the first electrode is arranged and that the common base area of the contact tabs with is provided in a slot in which the insulating spacer is fixed with a retaining attachment.
- the holding approach can be designed as a short cylindrical nozzle or also be formed by an annular recess, which, for example, in the lateral surface of a cylindrical Body is incorporated.
- Such a configuration of the short-circuit device enables - regardless of whether and how (radially or axially protruding) the connecting wires to the front electrodes are connected - a large-scale contact to the front electrodes by forming two contact tabs, those in the edge area of the electrodes without impairment contact through molten insulating material.
- the one located relatively far from the contact points Spacers can be very small, especially be formed as a cylindrical body, whereby the local Fixing the spacer or spacers is structurally easier is.
- the short-circuit device designed according to the invention is used for surge arresters with two electrodes, one of which the second electrode the other end of the surge arrester forms and from the first electrode a tubular insulator is kept at a distance, useful applied in such a way that the shorting bar in Axial direction of the surge arrester is symmetrical and is fixed on the insulator by means of a clip.
- the other end of the shorting bar can also by means of a spacer at a distance from the second electrode being held; the other end of the shorting bar can but also lie directly on the second electrode.
- the application of the shorting bar designed according to the invention for surge arresters with three electrodes, of which the second electrode is the other end of the surge arrester and the third electrode arranged between the first and the second electrode and of these electrodes by means of a first and a second hollow cylindrical insulator is isolated, is convenient in such a way that the shorting bar also in the axial direction is symmetrical and by means of a bracket sits on the third electrode.
- the surge arrester 1 has a first end electrode 11, a second end electrode 12 and a third electrode 13, which is designed as a central electrode and of the two end electrodes 11 and 12 by means of the tubular insulators 14 and 15 are arranged insulated. All electrodes are made of copper and are similar to that in the configuration shown in U.S. Patent 4,433,354.
- the two end electrodes 11 and 12 are axially welded on Provide connecting wires 16, in particular according to Figure 1 of U.S. Patent 4,362,962.
- the center electrode 13 is with a tangentially welded and radial connecting wire Mistake.
- the surge arrester 1 is with a short-circuit device 2 equipped, which essentially consist of a two-armed, resilient shorting bar 21 and two insulating spacers 31 exists.
- the shorting bar 21 has two in parallel Arms running to the longitudinal axis of the surge arrester 22 and 23 on the area of the two end electrodes are angled perpendicular to the longitudinal axis A and then approximately parallel to the end faces of the two end electrodes 11 and 12 run.
- the ends of the arms 22 and 23 form contact areas 24 and 25, which according to FIG. 2 each have two contact tabs 26 and 27 exist.
- the contact tabs give that Center area 11 A of the respective end electrode free, wherein the actual contact area the edge region 11 B of the respective Electrode is opposite.
- the contact tabs 26 and 27 have a common base 28, which is provided with a slot 29. In this slot 29 is a retaining lug 32 of the insulating spacer 31 used.
- the insulating spacer is therefore located between the common base 28 and the edge region 11B the respective end electrode and is dimensioned so that between the contact tabs 26, 27 and the edge region 11 B of the end electrodes an air gap Ls is maintained.
- the shorting bar 21 is also provided with a bracket 30, the isolators 14 and 15 on more than half of theirs Includes the scope and with the help of the shorting bar sits on the center electrode 13.
- the surge arrester according to FIG. 3 is concerned around a two-electrode arrester with the two end electrodes 11 and 12, which are insulated from one another by means of the insulator 33 are.
- the short-circuit device is according to the short-circuit device constructed and exists according to Figures 1 and 2 from a spring clip 34 and the two insulating spacers 31, the bracket 35 directly on the insulator 33 is placed without electrical contacting there to effect.
- the surge arrester according to FIG 3 one insulating spacer 31 can also be omitted, so that the contact area of the resilient arm 23 always rests directly on the front edge area of the end electrode 11.
- FIG. 5 shows the insulating spacer 31 with the holding attachment 32.
- the insulating spacer can consist of a cylindrical part 36 which with a annular recess 37 is provided with which the spacer inserted into the slot 29 of the contact areas 24 and 25 can be.
- the spacer can also tolerably consist of a disc 38, which then between the common base 28 of the tabs 26 and 27 and the edge region 11 B of the respective electrode is inserted and there is held by the spring tension of the arms 22, 23.
Landscapes
- Fuses (AREA)
- Thermistors And Varistors (AREA)
Description
- Figuren 1 und 2
- einen Drei-Elektroden-Überspannungsableiter in zwei Ansichten,
- Figur 3
- einen Zwei-Elektroden-Ableiter in Seitenansicht,
- Figur 4
- eine Variante zum Überspannungsableiter gemäß Figur 3 und
- Figuren 5 bis 7
- drei Ausführungsformen eines isolierenden Abstandhalters.
Claims (5)
- Überspannungsableiter in zylindrischer Bauform mit wenigstens einer ein stirnseitiges Ende des Überspannungsableiters bildenden ersten Elektrode und mit einer von der ersten isoliert angeordneten zweiten Elektrode und mit einem federnden Kurzschlußbügel, dessen eines Ende einen Kontaktbereich aufweist, der einem Randbereich der Stirnfläche der ersten Elektrode zugeordnet ist,
wobei der Kontaktbereich des Kurzschlußbügels mittels eines außermittig zur ersten Elektrode angeordneten, isolierenden, im Überlastfall schmelzbaren Abstandhalters axial auf Abstand zur ersten Elektrode gehalten wird und der auf Abstand (Ls) gehaltene Kontaktbereich (24,25) des federnden Kurzschlußbügels (21) von zwei Kontaktlaschen (26,27) gebildet ist, die von einem gemeinsamen Basisbereich ausgehen,
dadurch gekennzeichnet,
daß die Kontaktlaschen (26,27) zwischen sich den Mittenbereich (11 A) der ersten Elektrode (11) freigeben,
daß der isolierende Abstandhalter (31) zwischen dem gemeinsamen Basisbereich (28) der Kontaktlaschen (26,27) und der Stirnfläche der ersten Elektrode (11) angeordnet ist und
daß der gemeinsame Basisbereich (28) der Kontaktlaschen mit einem Schlitz (29) versehen ist, in dem der isolierende Abstandhalter (31) mit einem Halteansatz (32) fixiert ist. - Überspannungsableiter nach Anspruch 1,
dadurch gekennzeichnet,
daß der Halteansatz von einer ringförmigen Ausnehmung (37) gebildet ist. - Überspannungsableiter nach Anspruch 1 oder 2 mit zwei Elektroden, von denen die zweite Elektrode das andere stirnseitige Ende des Überspannungsableiters bildet, und mit einem zwischen den beiden Elektroden angeordneten rohrförmigen Isolator,
dadurch gekennzeichnet,
daß der Kurzschlußbügel in Achsrichtung des Überspannungsableiters symmetrisch ausgebildet und mittels einer Klammer (35) auf dem Isolator (33) fixiert ist. - Überspannungsableiter nach Anspruch 3,
dadurch gekennzeichnet,
daß das andere Ende des Kurzschlußbügels direkt an der zweiten Elektrode (12) anliegt. - Überspannungsableiter nach Anspruch 1 oder 2 mit drei Elektroden, von den die zweite Elektrode das andere stirnseitige Ende des Überspannungsableiters bildet und die dritte Elektrode zwischen der ersten und der zweiten Elektrode angeordnet und von diesen Elektroden mittels eines ersten und eines zweiten hohlzylindrischen Isolators isoliert ist,
dadurch gekennzeichnet,
daß der Kurzschlußbügel (21) in Achsrichtung symmetrisch ausgebildet ist und mittels einer Klammer (30) auf der dritten Elektrode (13) aufsitzt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19731312A DE19731312A1 (de) | 1997-07-15 | 1997-07-15 | Überspannungsableiter mit äußerer Kurzschlußeinrichtung |
DE19731312 | 1997-07-15 | ||
PCT/DE1998/002011 WO1999004468A1 (de) | 1997-07-15 | 1998-07-14 | Überspannungsableiter mit äusserer kurzschlusseinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0995244A1 EP0995244A1 (de) | 2000-04-26 |
EP0995244B1 true EP0995244B1 (de) | 2001-05-30 |
Family
ID=7836429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98945012A Expired - Lifetime EP0995244B1 (de) | 1997-07-15 | 1998-07-14 | Überspannungsableiter mit äusserer kurzschlusseinrichtung |
Country Status (5)
Country | Link |
---|---|
US (1) | US6424514B1 (de) |
EP (1) | EP0995244B1 (de) |
CN (1) | CN1264502A (de) |
DE (2) | DE19731312A1 (de) |
WO (1) | WO1999004468A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW522420B (en) * | 2000-06-20 | 2003-03-01 | Takashi Katoda | Fabrication method of surge protector device and the device fabricated by the method |
DE10162916A1 (de) * | 2001-12-20 | 2003-07-10 | Epcos Ag | Federbügel, Überspannungsableiter mit dem Federbügel und Anordnung eines Überspannungsableiters |
US20060147712A1 (en) * | 2003-07-09 | 2006-07-06 | Maxwell Technologies, Inc. | Dry particle based adhesive electrode and methods of making same |
US7791860B2 (en) | 2003-07-09 | 2010-09-07 | Maxwell Technologies, Inc. | Particle based electrodes and methods of making same |
US7352558B2 (en) | 2003-07-09 | 2008-04-01 | Maxwell Technologies, Inc. | Dry particle based capacitor and methods of making same |
US7342770B2 (en) * | 2003-07-09 | 2008-03-11 | Maxwell Technologies, Inc. | Recyclable dry particle based adhesive electrode and methods of making same |
US20050250011A1 (en) * | 2004-04-02 | 2005-11-10 | Maxwell Technologies, Inc. | Particle packaging systems and methods |
US7920371B2 (en) | 2003-09-12 | 2011-04-05 | Maxwell Technologies, Inc. | Electrical energy storage devices with separator between electrodes and methods for fabricating the devices |
US7495349B2 (en) * | 2003-10-20 | 2009-02-24 | Maxwell Technologies, Inc. | Self aligning electrode |
US7016177B1 (en) | 2003-11-07 | 2006-03-21 | Maxwell Technologies, Inc. | Capacitor heat protection |
US7180726B2 (en) * | 2003-11-07 | 2007-02-20 | Maxwell Technologies, Inc. | Self-supporting capacitor structure |
US7027290B1 (en) | 2003-11-07 | 2006-04-11 | Maxwell Technologies, Inc. | Capacitor heat reduction apparatus and method |
US7203056B2 (en) * | 2003-11-07 | 2007-04-10 | Maxwell Technologies, Inc. | Thermal interconnection for capacitor systems |
US7384433B2 (en) | 2004-02-19 | 2008-06-10 | Maxwell Technologies, Inc. | Densification of compressible layers during electrode lamination |
US7090946B2 (en) | 2004-02-19 | 2006-08-15 | Maxwell Technologies, Inc. | Composite electrode and method for fabricating same |
US20050269988A1 (en) * | 2004-06-04 | 2005-12-08 | Maxwell Technologies, Inc. | Voltage balancing circuit for multi-cell modules |
DE502004012168D1 (de) | 2004-08-06 | 2011-03-17 | Hubert & Suhner Ag | Selbsttätig löschende überspannungsableiteranordnung sowie verwendung einer solchen überspannungsableiteranordnung |
US7440258B2 (en) | 2005-03-14 | 2008-10-21 | Maxwell Technologies, Inc. | Thermal interconnects for coupling energy storage devices |
DE102005016848A1 (de) * | 2005-04-12 | 2006-10-19 | Epcos Ag | Überspannungsableiter |
US8518573B2 (en) * | 2006-09-29 | 2013-08-27 | Maxwell Technologies, Inc. | Low-inductive impedance, thermally decoupled, radii-modulated electrode core |
US20080201925A1 (en) | 2007-02-28 | 2008-08-28 | Maxwell Technologies, Inc. | Ultracapacitor electrode with controlled sulfur content |
US7974063B2 (en) * | 2007-11-16 | 2011-07-05 | Corning Cable Systems, Llc | Hybrid surge protector for a network interface device |
JP5248374B2 (ja) * | 2009-03-13 | 2013-07-31 | 新光電気工業株式会社 | 3極避雷管 |
DE102015121438B4 (de) * | 2015-12-09 | 2023-12-28 | Tdk Electronics Ag | Elektrisches Schutzbauelement mit Kurzschlusseinrichtung |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2911110A1 (de) * | 1979-03-21 | 1980-09-25 | Siemens Ag | Gasentladungs-ueberspannungsableiter mit fail-safe-verhalten |
DE3006193C2 (de) * | 1980-02-19 | 1984-04-12 | Siemens AG, 1000 Berlin und 8000 München | Elektrische Anschlußverbindung der Elektroden eines Gasentladungs-Überspannungsableiters |
DE3100924A1 (de) * | 1981-01-14 | 1982-08-05 | Siemens AG, 1000 Berlin und 8000 München | "gasentladungs-ueberspannungsableiter" |
FR2621184B1 (fr) * | 1987-09-29 | 1991-10-18 | Claude Sa | Dispositif de protection contre les surtensions |
JPH0227694U (de) * | 1988-08-10 | 1990-02-22 | ||
GB2230900A (en) * | 1989-04-24 | 1990-10-31 | Semitron Cricklade Ltd | Electrical components |
MX172972B (es) * | 1989-05-01 | 1994-01-26 | Porta Systems Corp | Dispositivo de autoajuste de fallas en el tubo de gas para modulos protectores de telefonos |
US5029302A (en) * | 1990-08-29 | 1991-07-02 | Illinois Tool Works | Fail safe gas tube |
US5187634A (en) * | 1991-08-21 | 1993-02-16 | Adc Telecommunications, Inc. | Fail-safe protector |
-
1997
- 1997-07-15 DE DE19731312A patent/DE19731312A1/de not_active Withdrawn
-
1998
- 1998-07-14 WO PCT/DE1998/002011 patent/WO1999004468A1/de active IP Right Grant
- 1998-07-14 CN CN98807263A patent/CN1264502A/zh active Pending
- 1998-07-14 EP EP98945012A patent/EP0995244B1/de not_active Expired - Lifetime
- 1998-07-14 US US09/462,753 patent/US6424514B1/en not_active Expired - Fee Related
- 1998-07-14 DE DE59800801T patent/DE59800801D1/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US6424514B1 (en) | 2002-07-23 |
EP0995244A1 (de) | 2000-04-26 |
CN1264502A (zh) | 2000-08-23 |
DE59800801D1 (de) | 2001-07-05 |
WO1999004468A1 (de) | 1999-01-28 |
DE19731312A1 (de) | 1999-01-28 |
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