EP1155429B1 - Chambre d'interruption sous vide dotee d'un isolateur annulaire - Google Patents
Chambre d'interruption sous vide dotee d'un isolateur annulaire Download PDFInfo
- Publication number
- EP1155429B1 EP1155429B1 EP00912399A EP00912399A EP1155429B1 EP 1155429 B1 EP1155429 B1 EP 1155429B1 EP 00912399 A EP00912399 A EP 00912399A EP 00912399 A EP00912399 A EP 00912399A EP 1155429 B1 EP1155429 B1 EP 1155429B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact piece
- membrane
- power current
- vacuum interrupter
- switching
- 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
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/6606—Terminal arrangements
- H01H2033/6613—Cooling arrangements directly associated with the terminal arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
- H01H33/66238—Specific bellows details
Definitions
- the invention is in the field of electrical components and is in the design of vacuum interrupters apply whose housing two cap-like metal parts and has an annular insulator and for Switching purposes in the lower AC voltage range (up to 1000 V) are provided.
- This switching tube has no special shielding to protect the inner formed by the annular insulator Isolation distance on, because a relatively wide end face of the annular insulator facing away from the contact area is.
- the power connections of this well-known vacuum interrupter are - as usual - designed as bolts that passed axially through the respective cap-like metal part are.
- the two contact pieces are otherwise as Pot contacts executed; but other well-known ones also come Contact forms into consideration (DE 44 22 316 A1).
- Another Known contact form offer, for example, so-called spiral contacts (English: spiral petal contacts) with especially flat, plate-like contact electrodes with from the outside Inward circumferential slots are provided. This Slots can each consist of a straight-line section and of a hole breaking through the contact surface (EP 0 532 513 B1).
- Vacuum interrupters are known in which the bellows one Forms part of the outer surface of the housing and thereby on the one hand with the power connection of the movable contact bolt and on the other side with a short tubular Insulator is soldered vacuum-tight (DE 37 09 585 C2).
- the Bellows can be used with the isolator as well the power connection of the movable contact pin by a Cutting edge soldering must be connected (DE 195 10 850 C1).
- Vacuum switches are also known which operate at a switching voltage from about 4 volts to a current of about 4,000 A. have switch and where cylindrical contacts in planar conductive end plates are recessed to an electrical Connection of the switch with electrical connection rails enable. Every contact is via a corrugated, disc-shaped membrane with a concentric to the switching distance arranged insulating ring soldered vacuum-tight.
- Solder connection between the membranes and the insulating ring is in the one case a holder for a short tube piece of trained shielding included (US 4,216,360 A, DE 29 44 286 A).
- the housing is also known for vacuum switching devices an arc quenching chamber to form one or more hermetic closed and evacuable cavities multi-walled, preferably double-walled.
- an arc quenching chamber to form one or more hermetic closed and evacuable cavities multi-walled, preferably double-walled.
- the vacuum interrupter enclosing the contacts first wall of the housing and the other for education a field-free cavity - the air and / or another Contains gas of much lower pressure than air pressure and for the accommodation of potential and drive controlling Elements suitable - one with the outside of the first Wall connected second wall of the housing provided, wherein the first wall by a resilient metal cylinder and a first section of an insulating outer wall and the second wall by a resilient metallic membrane and a pot-like second section of the insulating outer wall are formed (DE 181 33 89).
- the invention has for its object the design of the known Reduce vacuum interrupter chamber while doing so to increase the switching capacity.
- the invention provides that the power connection of the fixed contact piece as Plate is formed that that surrounding the two contact pieces Metal part tubular and frontal is connected to the plate and that the resilient metallic Barrier made of one with concentric corrugations provided, disc-shaped membrane, the one hand with the power connection of the movable Contact piece and on the other hand via an axially extending Ring flange is soldered to the annular insulator.
- the membrane has a number Z of full corrugations with a wall thickness between 0.1 and 0.2 mm and a corrugation depth of about half the switching stroke, which is greater than 1 + integer of the third root from the outside Diaphragm diameter D A minus power connection bolt diameter D B multiplied by the wall thickness s of the membrane, but at least 3, whereby the individual dimensions are to be used in mm.
- the above-mentioned boundary condition is as a mathematically formulated relationship:
- the corrugation be chosen so that the radius of curvature is about that Switching stroke and the single shaft belly with an arc corresponds to a circumferential angle of approximately 90 °.
- the curl can but also sinusoidal with straight flanks his.
- a disc-shaped vapor barrier to arrange, for example, from a chrome-nickel steel exists and that with vacuum interrupters with small Switching capacity for mechanical amplification if necessary of the movable spiral contact reduced in thickness can be used.
- the new design of the vacuum interrupter enables also a direct connection of the fixed contact piece to the associated plate-like power connection, whereby when using a connecting pin with a large diameter optimal heat dissipation for the movable contact piece is guaranteed.
- the overall compact design is superfluous a special guide for the connecting bolt for the movable Contact piece, as was the case with vacuum interrupters for circuit breakers using a plastic socket is common. This results in a higher thermal load Vacuum interrupter possible.
- the new construction of the vacuum interrupter makes it possible furthermore, all parts - except the ring-shaped Isolator - self-centering construction so that all Individual parts in a single operation (seal soldering) with each other without using expensive and complex soldering molds can be soldered. To do this, it is recommended that the fixed Contact piece with a short centering spigot to connect the plate-like power connector while the movable contact piece over the contact pin with the corrugated Membrane is connected centered.
- the shape of the two contact pieces - especially in their Training as flat spiral contacts - surrounding tubular Part depends on the respective switching capacity from. With a small switching capacity of about 40 to 60 kA can this part can be designed as a hollow cylinder. With larger ones Switching capacity, i.e. with larger contact diameters, recommended it is the tubular part on the the annular Insulator facing end with a tapered taper Mistake; this enables the use of an isolator and a corrugated membrane with a significantly smaller diameter than that of the spiral contacts.
- tubular part preferably made of copper it is recommended to place this on the inner wall in the area of the To provide the switching path with an arc-proof lining, for example by using sheet metal parts a chrome-copper composite or by a galvanic Coated with chrome.
- the one between the corrugated membrane and the tubular part the housing arranged insulating ring can in a known manner by designing its cross-sectional contour accordingly be trained that the arrangement of a shield to protect against the deposition of metal vapor particles. If the insulating ring, however, only the insulating function fulfilled, the tubular metal part can serve as a steam screen have a working approach, as is inherent in the older German patent application 198 26 766.5 already proposed is. In this double function of the metal part the transition from the area belonging to the housing to the serving as a steam screen wavy, so that the metal part of the end face of the insulating ring is only linear touched and thus a kind in this area Allows cutting edge soldering.
- the housing is made from an upper metal that acts as a power connection Plate 1 made of copper, a hollow cylindrical butt-soldered to it Wall part 3 made of copper, an annular insulator 4, one arranged coaxially to the annular insulator 4 corrugated membrane 5 and a cylindrical power connection bolt 2.
- the annular insulator is the same as that Insulator according to DE 44 22 316 A1, i.e. approximately square in Cross section and with a bevel and an undercut, educated.
- Inside the case are a fixed flat spiral contact 6 and a movable, flat spiral contact 7 arranged.
- the spiral contact 6 is via a short centering spigot 61, which is in a centering hole engages in the spiral contact, connected to the plate 1.
- the spiral contact 7 sits on a centering one Constriction 21 of the current supply pin causing the flow of current 2 on. This is at its other end in the Area of a centering projection 22 with the corrugated membrane 5 soldered.
- the membrane 5 is in turn over the axially extending Ring flange 51 soldered to the insulator 4. This Ring flange can be formed in one piece with the membrane.
- a vapor barrier 9 in the form of a flat one Washer made of a mechanically strong material such as Chrome-nickel steel arranged. This vapor barrier 9 is used to shade the annular insulator 4 opposite metal particles released during the switching process Spiral contacts 6 and 7.
- the construction of the vacuum interrupter is chosen so that all Individual parts within a single soldering process can be soldered.
- the degassing gaps required for this can with means known from the prior art in the joining area between the annular insulator 4 and the hollow cylindrical wall part 3 can be provided.
- tubular metal part 3 is provided as a wall part, which with its ends on the one hand with the metal plate 1 and on the other with one end face of the annular insulator 4 is soldered; in the right part of the illustration is the wall part 31 integrally formed with a shield 32 and in the transition area from the wall part to the shielding designed wave-like.
- the right part of the Illustration uses an insulating ring 41, the simple, has rectangular cross section.
- - Farther 1 shows two different embodiments for the Connection of the corrugated membrane 5 with the power connection bolt 2.
- FIG. 2 shows a top view of the one that functions as a power connection Plate 1 of the vacuum interrupter according to Figure 1.
- a rectangular or square shape of the planes Plate 1 remains enough space for holes 11 for attachment of the power connection to a corresponding part of a associated switching device.
- the membrane shown in FIG. 1 can have the following dimensions, for example: Outside diameter D A 77 mm Inner diameter (Diameter of Power connection bolt) D B 25 mm Wall thickness s 0.2 mm Corrugation depth (distance between Wellenberg and Trough): t 2 mm Number Z of corrugations ⁇ 3
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Contacts (AREA)
Abstract
Claims (3)
- Chambre d'interruption sous vide pour interrompre des courants de court-circuit dans le domaine de la basse tension,
constituée d'une pièce (6) fixe de contact et d'une pièce (7) de contact mobile axialement par rapport à celle-ci et ayant respectivement une borne associée de courant
et d'un boítier enfermant les contacts,
la borne de courant de la pièce (7) mobile de contact étant constituée en axe (2) cylindrique et
le boítier ayant des parties métalliques rigides, un isolateur annulaire et une paroi métallique de blocage qui a l'élasticité d'un ressort, qui est étanche au gaz et qui est constituée d'une membrane (5) en forme de disque munie d'ondulations concentriques
et ces parties de boítier sont reliées d'une manière étanche au gaz suivant une association déterminée les unes aux autres et aux bornes de courant des pièces de contact
et l'une des parties rigides métalliques entoure tant la pièce (6) fixe que la pièce (7) mobile de contact et est de forme tubulaire,
caractérisée en ce que la borne de courant de la pièce (6) fixe de contact est constituée sous la forme d'une plaque (1),
en ce que la partie (3) métallique entourant les deux pièces (6, 7) de contact est reliée du côté frontal à la plaque (1),
et en ce que la membrane est brasée, d'une part, à la borne de courant constituée en axe (2) de la pièce (7) mobile de contact et, d'autre part, à l'isolateur (4) annulaire par une bride (51) annulaire s'étendant axialement. - Chambre d'interruption sous vide suivant la revendication 1, caractérisée en ce que la membrane (5) a pour une course d'interruption de 3 à 5 mmune épaisseur s de la paroi comprise entre 0,1 et 0,2 mm,une profondeur t des ondulations représentant environ la moitié de la course d'interruption etDA = diamètre extérieur de la membrane [ mm ]DB = diamètre de l'axe de la borne de courant de la pièce mobile de contact [ mm ] ets = épaisseur de la membrane [ mm ].
- Chambre d'interruption sous vide suivant la revendication 1 ou 2, caractérisée en ce que les pièces de contact sont constituées sous la forme de contacts (6, 7) plats en spirale.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19910148 | 1999-02-26 | ||
DE19910148A DE19910148C2 (de) | 1999-02-26 | 1999-02-26 | Vakuumschaltkammer mit ringförmigem Isolator |
PCT/DE2000/000576 WO2000052719A1 (fr) | 1999-02-26 | 2000-02-25 | Chambre d'interruption sous vide dotee d'un isolateur annulaire |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1155429A1 EP1155429A1 (fr) | 2001-11-21 |
EP1155429B1 true EP1155429B1 (fr) | 2003-01-08 |
Family
ID=7900120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00912399A Expired - Lifetime EP1155429B1 (fr) | 1999-02-26 | 2000-02-25 | Chambre d'interruption sous vide dotee d'un isolateur annulaire |
Country Status (7)
Country | Link |
---|---|
US (1) | US6864456B1 (fr) |
EP (1) | EP1155429B1 (fr) |
JP (1) | JP2002538592A (fr) |
CN (1) | CN1178254C (fr) |
DE (2) | DE19910148C2 (fr) |
HK (1) | HK1042773B (fr) |
WO (1) | WO2000052719A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102931009A (zh) * | 2011-08-09 | 2013-02-13 | 安徽宇腾真空电气有限责任公司 | 真空开关的加工方法 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10065091A1 (de) * | 2000-12-21 | 2002-06-27 | Siemens Ag | Kontaktanordnung für eine Vakuumschaltröhre |
NL1020347C2 (nl) * | 2002-04-09 | 2003-10-13 | Holec Holland Nv | Keramische buis voor vacuümonderbreker. Keramische buis voor vacuümonderbreker. |
US7397012B2 (en) * | 2005-05-31 | 2008-07-08 | Thomas & Betts International, Inc. | High current switch and method of operation |
DE102008024419B3 (de) * | 2008-05-16 | 2009-12-31 | Siemens Aktiengesellschaft | Schaltkammer |
ATE497246T1 (de) * | 2008-09-01 | 2011-02-15 | Abb Technology Ag | Niederspannungs-, mittelspannungs- oder hochspannungsanordnung |
US8408925B2 (en) * | 2010-02-03 | 2013-04-02 | Thomas & Betts International, Inc. | Visible open for switchgear assembly |
JP5573250B2 (ja) * | 2010-03-09 | 2014-08-20 | オムロン株式会社 | 封止接点装置 |
US8388381B2 (en) | 2010-07-21 | 2013-03-05 | Thomas & Betts International, Inc. | Visible open for switchgear assembly |
JP5567952B2 (ja) * | 2010-09-10 | 2014-08-06 | パナソニック株式会社 | 接点装置 |
DE102011004212B3 (de) | 2011-02-16 | 2012-04-26 | Siemens Aktiengesellschaft | Kontaktscheibe für eine Vakuumschaltröhre |
KR20180073179A (ko) * | 2016-12-22 | 2018-07-02 | 엘에스산전 주식회사 | 진공 인터럽터 |
US10541094B1 (en) | 2018-07-27 | 2020-01-21 | Eaton Intelligent Power Limited | Vacuum interrupter with radial bellows |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1813389A1 (de) | 1968-04-29 | 1970-09-17 | Inst Prueffeld Fuer Elek Sche | Bogenloeschkammer fuer Vakuumschaltgeraete |
DD125892A1 (fr) * | 1976-04-12 | 1977-06-01 | ||
DE2725092A1 (de) | 1977-06-03 | 1978-12-14 | Bbc Brown Boveri & Cie | Vakuumschalter |
US4216360A (en) * | 1978-07-27 | 1980-08-05 | Westinghouse Electric Corp. | Low voltage vacuum switch with internal arcing shield |
US4216361A (en) * | 1978-11-17 | 1980-08-05 | Westinghouse Electric Corp. | Low voltage vacuum switch with plural conic shields about the contacts |
DE3343918A1 (de) * | 1983-12-05 | 1985-06-13 | Siemens AG, 1000 Berlin und 8000 München | Vakuumschalter fuer den niederspannungsbereich, insbesondere niederspannungsschuetz |
DE3501603A1 (de) | 1984-02-02 | 1985-08-01 | Westinghouse Electric Corp., Pittsburgh, Pa. | Niederspannung-hochfrequenz-vakuumschalter |
US4667071A (en) * | 1985-08-30 | 1987-05-19 | General Electric Company | Low voltage vacuum circuit interrupter |
US4672156A (en) * | 1986-04-04 | 1987-06-09 | Westinghouse Electric Corp. | Vacuum interrupter with bellows shield |
DE3825407A1 (de) * | 1988-07-27 | 1990-02-01 | Sachsenwerk Ag | Schaltkammer eines vakuumschalters |
EP0532513B1 (fr) * | 1990-06-07 | 1995-02-08 | Siemens Aktiengesellschaft | Contact pour un tube commutateur a vide |
DE9401655U1 (de) * | 1993-06-18 | 1994-11-03 | Siemens AG, 80333 München | Vakuumschaltröhre mit ringförigem Isolator |
DE19510850C1 (de) * | 1995-03-17 | 1996-07-25 | Siemens Ag | Vakuumschaltröhre |
EP0740321A3 (fr) * | 1995-04-26 | 1998-04-22 | Hitachi, Ltd. | Electrode pour disjoncteur sous vide |
DE19802893A1 (de) * | 1998-01-21 | 1999-07-22 | Siemens Ag | Vakuumschaltkammer mit ringförmigem Isolator |
DE19826766C1 (de) * | 1998-06-12 | 2000-03-30 | Siemens Ag | Vakuumschaltröhre mit einem dem Isolator zugeordneten Dampfschirm |
US6162543A (en) | 1998-12-11 | 2000-12-19 | Saint-Gobain Industrial Ceramics, Inc. | High purity siliconized silicon carbide having high thermal shock resistance |
-
1999
- 1999-02-26 DE DE19910148A patent/DE19910148C2/de not_active Expired - Fee Related
-
2000
- 2000-02-25 WO PCT/DE2000/000576 patent/WO2000052719A1/fr active IP Right Grant
- 2000-02-25 JP JP2000603058A patent/JP2002538592A/ja active Pending
- 2000-02-25 DE DE50001042T patent/DE50001042D1/de not_active Expired - Lifetime
- 2000-02-25 CN CNB008043450A patent/CN1178254C/zh not_active Expired - Fee Related
- 2000-02-25 EP EP00912399A patent/EP1155429B1/fr not_active Expired - Lifetime
- 2000-02-25 US US09/914,193 patent/US6864456B1/en not_active Expired - Fee Related
-
2002
- 2002-06-18 HK HK02104505.8A patent/HK1042773B/zh not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102931009A (zh) * | 2011-08-09 | 2013-02-13 | 安徽宇腾真空电气有限责任公司 | 真空开关的加工方法 |
Also Published As
Publication number | Publication date |
---|---|
CN1341267A (zh) | 2002-03-20 |
DE19910148A1 (de) | 2000-09-14 |
WO2000052719A1 (fr) | 2000-09-08 |
US6864456B1 (en) | 2005-03-08 |
DE50001042D1 (de) | 2003-02-13 |
EP1155429A1 (fr) | 2001-11-21 |
HK1042773A1 (en) | 2002-08-23 |
CN1178254C (zh) | 2004-12-01 |
DE19910148C2 (de) | 2001-03-22 |
HK1042773B (zh) | 2005-05-06 |
JP2002538592A (ja) | 2002-11-12 |
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