EP0856860B1 - Contact électrique de type tulipe pour appareil de commutation à haute tension et agencement de contact - Google Patents

Contact électrique de type tulipe pour appareil de commutation à haute tension et agencement de contact Download PDF

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Publication number
EP0856860B1
EP0856860B1 EP97120237A EP97120237A EP0856860B1 EP 0856860 B1 EP0856860 B1 EP 0856860B1 EP 97120237 A EP97120237 A EP 97120237A EP 97120237 A EP97120237 A EP 97120237A EP 0856860 B1 EP0856860 B1 EP 0856860B1
Authority
EP
European Patent Office
Prior art keywords
ring
contact
section
cylinder
contact piece
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
Application number
EP97120237A
Other languages
German (de)
English (en)
Other versions
EP0856860A2 (fr
EP0856860A3 (fr
Inventor
Mohammad Ali Dipl.-Ing. Naseri
Martin Dr.-Ing. Schumacher
Herbert Meinecke
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.)
ABB Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP0856860A2 publication Critical patent/EP0856860A2/fr
Publication of EP0856860A3 publication Critical patent/EP0856860A3/fr
Application granted granted Critical
Publication of EP0856860B1 publication Critical patent/EP0856860B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/38—Auxiliary contacts on to which the arc is transferred from the main contacts

Definitions

  • the invention relates to a tulip contact piece for a high-voltage switching device according to the preamble of claim 1, and a contact arrangement according to the preamble of claim 2.
  • Such a tulip contact piece is a mating contact piece or a fixed contact piece for the contact pin of an earthing switch; accordingly there is a possibility that when switching off or when switching on between the tulip contact piece and an arc is drawn on the mating contact piece.
  • the tulip contact piece and the counter contact piece must have a coating be made of erosion-resistant material.
  • contact fingers in tulip shape for such a switch are essentially intended for nominal current cutoffs.
  • Another solution is there in providing a finger contact basket that mates with the mating contact piece in Connection is established and, and around it, a finger basket to arrange the power transmission to effect.
  • the contact arrangement thus has two contact points; the one is used for nominal current transmission, and the other is an arc underneath broken. Wherever an arc occurs, erosion-resistant material must be provided and accordingly, the front ends of the fingers wear erosion-resistant material.
  • a tulip contact piece of the aforementioned type is known from US 4,841,108 become.
  • This contact piece belongs to a high-voltage circuit breaker; contact fingers are connected to a movable contact designed as a tube, which are delimited on both sides by axial slots; the free end of the contact fingers has an annular, inwardly projecting thickening that is rounded is, the transition between the contact fingers and the rounding is conical is formed with an acute angle. In comparison to the contact fingers is the radial one Thickness of the actual contact point is small.
  • the object of the invention is to provide a tulip contact piece of the type mentioned create that it can also be used with simplified production, if blowing with extinguishing gas is not required.
  • the invention accordingly consists in that an axially with slots the cylinder provided, which slots form the contact fingers between them, that adapted at the opposite end of the cylinder of the annulus slotted ring is formed, its cross-sectional shape together with the cylinder has the shape of a golf club that the free axial end of the ring has a radial
  • Has annular surface on which a section of erosion-resistant material is attached is that the inner diameter of the tulip contact piece corresponding to the counter contact piece is smaller than the inner diameter of the section made of erosion-resistant Material that the inner surface of the ring facing the annulus Area with a cylindrical inner surface and an adjoining to Free end opening conical region, the axial end of the ring facing partial area limited by the section made of erosion-resistant material is that the surface area of the ring facing the circular ring is a conical surface forms, the cone angle is an obtuse angle and is open to the annulus and that the wall thickness of the cylinder between about 1/4 to 1/6 of the radial extent of the ring
  • the mating contact piece then leaves the inner surface of the ring and finally separates from the section made of erosion-resistant material, so that the Arc on the tulip contact piece on the section attached to the front made of burn-resistant material with a base.
  • the counter contact piece is accordingly also at the end facing the tulip contact piece with a section made of fire-resistant material. This also burns the other base on the mating contact piece on this erosion-resistant material.
  • a contact arrangement is formed, which is a pin-shaped Has counter contact piece, which is formed according to subclaims 2 and 3 is.
  • the counter-contact piece arrangement 20, 21 is formed from a contact piece carrier 22, to which the actual mating contact piece 23 is attached, which is enlarged in FIG. 4 is shown.
  • the tulip contact piece 13 has a circular ring 24 which has an internal thread 25 with which the tulip contact piece is fixed on the projection 15 is.
  • a cylinder 26 adjoins the circular ring 24, the cylinder 26 having radial Slots 27, 28 is provided so that there are between two slots 27 and 28th a resilient cylinder section 29 is located, a total of eight such resilient Cylinder sections are provided.
  • the individual cylinder sections 29 then form the entire cylinder 26.
  • On the cylinder 26 there is an adapted slot provided ring 30, which together with the cylinder 26 in cross section, that is in Cross-section in the axial direction, giving a golf club shape.
  • FIG. 5 shows part of the ring 30 in an enlarged view.
  • the outer contour 36 of the ring 30 is an arc of a circle.
  • the circular ring 24 with the cylinder 13 and the ring 30 is made of copper, whereas the erosion-resistant material is a sintered alloy made of copper and tungsten.
  • the switch shown in Fig. 6 serves as an earthing switch.

Landscapes

  • Contacts (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Manufacture Of Switches (AREA)
  • Relay Circuits (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (3)

  1. Pièce de contact électrique de type tulipe adaptée et conçue pour recevoir une contre-pièce de contact en forme de broche, avec des doigts de contact élastiques disposés en cercle, dans laquelle un cylindre (13) pourvu de fentes (27, 28) axiales est formé sur une bague circulaire (24), lesquelles fentes (27, 28) définissent entre elles des doigts de contact (29), dans laquelle il est aménagé à l'extrémité du cylindre (26) opposée à la bague circulaire (24) une bague fendue (30) adaptée, dont la forme en section transversale, avec le cylindre (26), est celle d'un club de golf, dans laquelle l'extrémité axiale libre de la bague (30) présente une surface annulaire (32) radiale, à laquelle est liée une partie (33) en un matériau résistant aux brûlures, dans laquelle le diamètre intérieur de la pièce de contact de type tulipe associée à la contre-pièce de contact est inférieur au diamètre intérieur de la partie en matériau résistant aux brûlures, dans laquelle la surface intérieure de la bague (30) comporte une partie tournée vers la bague circulaire avec une surface intérieure (34) cylindrique et une partie conique, consécutive à la première, qui s'évase en direction de l'extrémité libre et dont la zone tournée vers l'extrémité axiale de la bague est limitée par la partie (33) en matériau résistant aux brûlures et dans laquelle la partie de surface (31) de la bague (30) tournée vers la bague circulaire (24) forme une surface conique, caractérisé en ce que l'angle de cône d'une telle surface est un angle obtus et est ouvert en direction de la bague circulaire et en ce que l'épaisseur de paroi du cylindre (26) est comprise entre environ 1/4 et 1/6 de l'étendue radiale de la bague (30), mesurée de la surface intérieure du cylindre (26) jusqu'au tronçon intérieur cylindrique de la bague (30).
  2. Système de contact avec une pièce de contact de type tulipe selon la revendication 1, caractérisé en ce que le diamètre de la surface intérieure cylindrique de la bague (30) est inférieur au diamètre de la contre-pièce de contact (23) en forme de broche, de telle sorte que le cylindre (26) s'ouvre élastiquement lors de l'introduction de la contre-pièce de contact.
  3. Système de contact selon la revendication 2, caractérisé en ce que la contre-pièce de contact (23) en forme de broche comporte également une partie en un matériau résistant à l'usure, laquelle partie (43) présente une surface extérieure effilée qui correspond à la portion conique sur la surface intérieure de la bague (30) de la pièce de contact électrique de type tulipe.
EP97120237A 1997-01-30 1997-11-19 Contact électrique de type tulipe pour appareil de commutation à haute tension et agencement de contact Expired - Lifetime EP0856860B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19703345 1997-01-30
DE19703345A DE19703345A1 (de) 1997-01-30 1997-01-30 Tulpenkontaktstück für ein Hochspannungsschaltgerät und Kontaktanordnung

Publications (3)

Publication Number Publication Date
EP0856860A2 EP0856860A2 (fr) 1998-08-05
EP0856860A3 EP0856860A3 (fr) 1998-12-30
EP0856860B1 true EP0856860B1 (fr) 2002-01-23

Family

ID=7818759

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97120237A Expired - Lifetime EP0856860B1 (fr) 1997-01-30 1997-11-19 Contact électrique de type tulipe pour appareil de commutation à haute tension et agencement de contact

Country Status (6)

Country Link
EP (1) EP0856860B1 (fr)
JP (1) JP4064511B2 (fr)
KR (1) KR100457219B1 (fr)
CN (1) CN1085394C (fr)
AT (1) ATE212470T1 (fr)
DE (2) DE19703345A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2864688B1 (fr) * 2003-12-29 2006-02-24 Alstom Organe de contact electrique pour appareillage electrique en moyenne ou haute tension, procede et appareillage correspondants.
EP2410553B1 (fr) * 2010-07-19 2012-10-03 ABB Technology AG Commutateur à haute tension isolé du gaz
CN102231335A (zh) * 2011-06-03 2011-11-02 闫淼江 隔离开关的阳触头及断口组件
EP2920802B1 (fr) 2012-11-13 2017-01-04 ABB Schweiz AG Système de contact
CN103065834A (zh) * 2012-12-18 2013-04-24 天津市百利电气有限公司 具有分断能力强的弧触头的隔离开关
MX2013013363A (es) 2013-11-15 2015-05-15 Mikhail Sotnikov Contactos electricos con una seccion reducida de aluminio.
CN104882302B (zh) * 2014-02-27 2017-06-09 西门子公司 切换装置的接触组件及其切换装置
CN105448549B (zh) * 2015-11-25 2018-10-02 河南平芝高压开关有限公司 接触组件及使用该组件的接地开关、金属封闭开关装置
CN105632794B (zh) * 2016-03-02 2019-08-13 平高集团有限公司 电连接装置及其触指座
CN106057507B (zh) * 2016-06-30 2018-11-27 平高集团有限公司 触指片、触指片加工方法及触指、触指组件、断路器

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH324323A (de) * 1953-10-15 1957-09-15 Sprecher & Schuh Ag Kontaktvorrichtung, insbesondere für Hochleistungsschalter
US4841108A (en) * 1987-11-06 1989-06-20 Cooper Industries, Inc. Recloser plenum puffer interrupter
DE4212740C2 (de) * 1992-04-16 1997-02-27 Asea Brown Boveri Hochspannungsschalter
JP2562348Y2 (ja) * 1993-04-26 1998-02-10 ホシデン株式会社 スイッチ

Also Published As

Publication number Publication date
EP0856860A2 (fr) 1998-08-05
JP4064511B2 (ja) 2008-03-19
EP0856860A3 (fr) 1998-12-30
JPH10308131A (ja) 1998-11-17
ATE212470T1 (de) 2002-02-15
CN1085394C (zh) 2002-05-22
CN1190786A (zh) 1998-08-19
KR100457219B1 (ko) 2005-02-23
DE59706176D1 (de) 2002-03-14
DE19703345A1 (de) 1998-08-06
KR19980070231A (ko) 1998-10-26

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