EP0381843A2 - Contact interrupteur - Google Patents

Contact interrupteur Download PDF

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Publication number
EP0381843A2
EP0381843A2 EP89123257A EP89123257A EP0381843A2 EP 0381843 A2 EP0381843 A2 EP 0381843A2 EP 89123257 A EP89123257 A EP 89123257A EP 89123257 A EP89123257 A EP 89123257A EP 0381843 A2 EP0381843 A2 EP 0381843A2
Authority
EP
European Patent Office
Prior art keywords
contact
switching
switching contact
slots
base
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.)
Withdrawn
Application number
EP89123257A
Other languages
German (de)
English (en)
Other versions
EP0381843A3 (fr
Inventor
Rainer Behrend
Wilhelm Dipl.-Ing. Schels
Manfred Dipl.-Ing. Niegl
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.)
Schneider Electric Sachsenwerk GmbH
Original Assignee
Sachsenwerk Licht und Kraft AG
Sachsenwerk AG
AEG Sachsenwerk 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 Sachsenwerk Licht und Kraft AG, Sachsenwerk AG, AEG Sachsenwerk GmbH filed Critical Sachsenwerk Licht und Kraft AG
Publication of EP0381843A2 publication Critical patent/EP0381843A2/fr
Publication of EP0381843A3 publication Critical patent/EP0381843A3/fr
Withdrawn legal-status Critical Current

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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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6642—Contacts; Arc-extinguishing means, e.g. arcing rings having cup-shaped contacts, the cylindrical wall of which being provided with inclined slits to form a coil
    • 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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H2033/6648—Contacts containing flexible parts, e.g. to improve contact pressure

Definitions

  • the invention relates to a switch contact for vacuum switches according to the preamble of the first claim.
  • Switch contacts according to the preamble of the first claim are known from DE 32 27 482 A1, in which a contact arrangement with two of the known switch contacts for generating a magnetic field directed parallel to the longitudinal axis is specified.
  • Each contact consists of a contact base connected to a contact pin, to which a cylindrical coil body is connected.
  • the coil body is slotted at an angle to the longitudinal axis at an angle to form helical, parallel conductors which form the excitation coil.
  • the slitting continues into the contact base, where it serves an advantageous radially symmetrical power supply to the coil former.
  • the known switch contact is terminated by a disk-shaped, preferably radially slotted contact plate, via which the contact with the second switch contact takes place or on which the base points of the arc are accommodated.
  • the change in direction mentioned also results in a reduction in the azimuthal current component in the cylindrical part and thus a reduction in the magnetic field density.
  • the invention has for its object to form a switch contact with obliquely slotted bobbins so that there is a uniform current density in its winding cross-sections with a resulting current direction largely coinciding with the slot tendency.
  • Its sections can be formed in the radial direction from cross sections of different thicknesses, they can also be divided into sub-sections with different widths, for example, by holes or openings.
  • each of the switching contacts 1, 2 is connected to a contact pin 3 for carrying current.
  • Each switch contact consists of the coil body 4, which is in current-conducting connection with the contact base 5 with a contact pin 3.
  • the coil body 4 is integrally connected to the contact plate 7 on the end face.
  • Each coil former 4 is divided into a series of helical conductors 9 by oblique slots 8, which are inclined at an angle ⁇ relative to the contact axis.
  • FIG. 2a shows such a current profile in the settlement. You can see the large streamline density with relatively steep upward streamlines SL ', from which the resulting portion i ′ n with the small angle ⁇ 'with respect to the contact axis. These streamlines form a short connection between the contact bolts 3 and the end face of the helical conductor 9.
  • the resulting current component i n is at an angle to the contact axis ⁇ inclined, which deviates only slightly from the angle of inclination ⁇ of the slots 8.
  • the current components i1, i2, i3 are shown, which are inclined approximately at the angle ⁇ with respect to the contact axis and with which an effective magnetic field is generated. Their current direction can be set by one of the designs of the contact base 5 according to the invention.
  • Figures 3, 4 and 5 show examples of effective control of the current components.
  • the contact base 5 is divided by a preferably radial slot 10 into a number of sector-shaped portions 12 corresponding to the number of conductors in the coil former 4.
  • four sections 12 are provided in FIGS. 1, 3 and 4.
  • Each section 12 is divided by a special shape into subsections 18 which have different resistances in the direction of current flow, that is to say between the contact pin 3 and the coil former 4. According to FIG. 3, this can be done for the switching contact 2 by openings 13a and 13b extending in the radial direction.
  • the division of the contact base sections 12 of the switching contact 2 into subsections 18 with different widths and increasing resistances can also be carried out by making holes 14 with staggered diameters D arranged analogously to the openings 13a, 13b.
  • FIG. 5 A further possibility is indicated in FIG. 5, according to which the intended current distribution in the helical conductors 9 can be produced in a particularly simple manner.
  • the contact base 5 with different thickness is formed in each section 12 between the transition region and the contact pin 3.
  • the full thickness d is provided on the side of the section 12 at which the slot 10 in the contact base 5 passes under the complementary angle 90- ⁇ into the coil former 4 as slot 8. From there, the thickness of the contact base 5 tapers to the next slot 10 to a fraction of its full value.
  • the slots, openings and holes in the contact base 5 can also be designed as depressions or blind holes.
  • a recess 26 is shown on the left-hand side and a sequence of two blind holes 27 with an increasing diameter is shown on the right-hand side of the contact.
  • the standing floor surfaces 28 additionally stiffen the contact floor 5.
  • a contact plate 7 divided into subsections 18 can make a substantial contribution to the uniform current distribution in the helical conductor 9. This applies in particular when the individual subsections 18 are brought into contact with the respective subsections of the counter-contact in the operating position of the switch by a support body.
  • FIG. 7 shows the section through such a switch contact.
  • the contact base 5 and the coil body 4 are designed as indicated in the previous part of the description.
  • a contact plate is provided on the end face of the coil former, which is subdivided into sections 17 by a slot 11 according to FIG. This division coincides with that in the contact base, so that a helical conductor 9 of the coil body 4 opens into each section 17.
  • the sections 17 are divided into the largest possible number of subsections 18 by means of corresponding slits 11.
  • a support body 21 is provided according to FIG. This is achieved particularly effectively by a slit 24 on the upper end face 22b of the support body 21.
  • This slit which incidentally coincides with the slits 11 in the contact plate, makes the intended elastic effect on each individual subsection 18 exercised.
  • the support body 21 has its abutment in the end face 22 a, which is expediently attached to the inside of the contact base 5.
  • the further subdivision of the contact plate 7 into subsections 18 ensures that the individual current threads SL1 to SL6 according to FIG. 2b do not converge slightly at the upper end of the bobbin, but continue to run parallel to the subsections 18 of the contact plate mentioned.
  • the resulting current component i n is then aligned parallel to the slots 8 in the coil former.
  • a further improvement in the current distribution in the helical conductors 9 can be achieved in that the contact plate is not fixed directly on the end face of the coil former 4, but on an intermediate conductor 6 connected between them.
  • this guide body is provided with the same slots 11 as the contact plate itself, so that the structure of the subsections can already be seen in it.
  • the outer diameter of the contact plate 71) can be made smaller than the outer diameter of the coil body. In this way it is prevented that individual arcs are on the outer edge of the contact plate 7 for a long time.
  • a further advantageous embodiment of the contact plate 7 is achieved 1) according to FIG. 7 that one carries out a concentric contact region 19 on the outer part thereof, which projects somewhat from the arc region 20 enclosed therein. This subdivision brings about a uniform contact of the contact area with that of the second switching contact. In this way, a precisely defined contact resistance is created in each subsection 18.
  • a defined contact force N according to FIG. 10 can also be achieved by arranging an elastic support ring 25 around the helical conductor 9. This is above all according to Figure 10 for contacts with very flat slots 8 in the coil. body favorable, ie when the angle of inclination ⁇ of the slots relative to the contact axis is relatively large. In such cases, the torque generated under the action of the contact force N on the cross section 29 will cause a large twist of the helical conductors 9. In order not to let the twisting angle ⁇ become too large, a counter torque is applied to the cross section of the conductor 9 by the elastic support ring 25 when twisting begins.
  • the support ring 25 can additionally be embedded in a recess in the coil body 4 in order to support the contact plate 7 against the contact base 5. Then, even in the event of a switch-on, it prevents compression of the switching contact while at the same time eliminating the spacing of the slots 8. The helical conductors 9 would then touch and the current flow would take place in the axial direction.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP19890123257 1989-01-12 1989-12-15 Contact interrupteur Withdrawn EP0381843A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3900684 1989-01-12
DE19893900684 DE3900684A1 (de) 1989-01-12 1989-01-12 Schaltkontakt fuer vakuumschalter

Publications (2)

Publication Number Publication Date
EP0381843A2 true EP0381843A2 (fr) 1990-08-16
EP0381843A3 EP0381843A3 (fr) 1990-11-07

Family

ID=6371911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890123257 Withdrawn EP0381843A3 (fr) 1989-01-12 1989-12-15 Contact interrupteur

Country Status (3)

Country Link
EP (1) EP0381843A3 (fr)
JP (1) JPH02227923A (fr)
DE (1) DE3900684A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240660A (en) * 1990-02-01 1991-08-07 Sachsenwerk Licht & Kraft Ag Vacuum switch
DE4112113A1 (de) * 1991-04-10 1991-11-07 Slamecka Ernst Kontaktanordnung fuer vakuumschalter
DE4121685A1 (de) * 1991-06-29 1993-01-07 Licentia Gmbh Vakuumschaltkammer
EP0747917A2 (fr) * 1995-06-07 1996-12-11 Eaton Corporation Interrupteur à vide avec un seul ensemble interne pour générer un champ magnétique axial
WO1998026441A1 (fr) * 1996-12-12 1998-06-18 Siemens Aktiengesellschaft Commutateur a decharge gazeuse basse pression
WO1998026442A1 (fr) * 1996-12-12 1998-06-18 Siemens Aktiengesellschaft Commutateur a decharge gazeuse basse pression
DE19809828C1 (de) * 1998-02-27 1999-07-08 Eckehard Dr Ing Gebauer Vakuumleistungsschalter für Niederspannung
WO2006003114A2 (fr) * 2004-06-30 2006-01-12 Siemens Aktiengesellschaft Contact de commutation pour tubes commutateurs a vide
EP2549503A1 (fr) * 2011-07-19 2013-01-23 ABB Technology AG Interrupteur sous vide avec commande simple et intervalle double intégré

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4341714A1 (de) * 1993-12-05 1994-04-28 Slamecka Ernst Vakuumschalter-Kontaktanordnung
DE10064832B4 (de) * 2000-12-22 2006-07-27 Abb Patent Gmbh Vakuumkammer
JP3840934B2 (ja) * 2001-09-12 2006-11-01 株式会社明電舎 真空インタラプタ用接触子及び真空インタラプタ
DE60223975T2 (de) * 2001-09-12 2008-11-27 Kabushiki Kaisha Meidensha Vakuumschalterkontakt und Vakuumschalter mit einem solchen Kontakt
DE10201097A1 (de) * 2002-01-09 2003-07-24 Siemens Ag Kontaktträger zum Halten einer Kontaktscheibe einer Kontaktanordnung für Vakuumschalter
DE10305464B4 (de) * 2003-02-04 2009-02-19 Siemens Ag Schaltanlage mit Abschirmelementen zum Abschirmen parasitärer Magnetfelder
DE112010005162B4 (de) 2010-01-20 2019-10-10 Mitsubishi Electric Corporation Vakuum-leistungsschalter
JP5550626B2 (ja) * 2011-12-20 2014-07-16 株式会社日立製作所 真空遮断器用電極及び真空遮断器
JP2015082412A (ja) * 2013-10-23 2015-04-27 三菱電機株式会社 真空バルブ
CN110085475B (zh) * 2019-05-14 2021-04-09 上海电力学院 机械式高压直流断路器中真空灭弧室双线圈式触头结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1424277A (fr) * 1964-02-11 1966-01-07 Ass Elect Ind Perfectionnements aux montages de contacts des interrupteurs sous vide
DE3227482A1 (de) * 1982-07-20 1983-02-03 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung mit vorrichtung zur erzeugung eines achsialen magnetfeldes
DE3323445A1 (de) * 1983-06-29 1985-01-10 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter
EP0203367A1 (fr) * 1985-05-06 1986-12-03 Siemens Aktiengesellschaft Dispositif de contact pour interrupteur sous vide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL299341A (fr) * 1964-03-11
DE3415743A1 (de) * 1984-04-26 1985-10-31 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer einen vakuumschalter
DE3510981A1 (de) * 1985-03-22 1985-10-31 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter - erregerkontaktanordnung
DE3808248A1 (de) * 1988-03-10 1988-07-14 Slamecka Ernst Kontaktanordnung fuer vakuumschalter zur erzeugung eines axialen magnetfelds

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1424277A (fr) * 1964-02-11 1966-01-07 Ass Elect Ind Perfectionnements aux montages de contacts des interrupteurs sous vide
DE3227482A1 (de) * 1982-07-20 1983-02-03 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung mit vorrichtung zur erzeugung eines achsialen magnetfeldes
DE3323445A1 (de) * 1983-06-29 1985-01-10 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter
EP0203367A1 (fr) * 1985-05-06 1986-12-03 Siemens Aktiengesellschaft Dispositif de contact pour interrupteur sous vide

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240660B (en) * 1990-02-01 1994-07-27 Sachsenwerk Licht & Kraft Ag Vacuum switch chamber assembly
US5099093A (en) * 1990-02-01 1992-03-24 Sachsenwerk Aktiengesellschaft Vacuum switching chamber
GB2240660A (en) * 1990-02-01 1991-08-07 Sachsenwerk Licht & Kraft Ag Vacuum switch
DE4112113A1 (de) * 1991-04-10 1991-11-07 Slamecka Ernst Kontaktanordnung fuer vakuumschalter
DE4121685C2 (de) * 1991-06-29 2002-10-31 Alstom Vakuumschalttechnik Gmb Vakuumschaltkammer
DE4121685A1 (de) * 1991-06-29 1993-01-07 Licentia Gmbh Vakuumschaltkammer
EP0747917A2 (fr) * 1995-06-07 1996-12-11 Eaton Corporation Interrupteur à vide avec un seul ensemble interne pour générer un champ magnétique axial
EP0747917A3 (fr) * 1995-06-07 1998-07-22 Eaton Corporation Interrupteur à vide avec un seul ensemble interne pour générer un champ magnétique axial
WO1998026441A1 (fr) * 1996-12-12 1998-06-18 Siemens Aktiengesellschaft Commutateur a decharge gazeuse basse pression
WO1998026442A1 (fr) * 1996-12-12 1998-06-18 Siemens Aktiengesellschaft Commutateur a decharge gazeuse basse pression
US6307308B1 (en) 1996-12-12 2001-10-23 Siemens Aktiengesellschaft Low pressure gas discharge switch with particular electrode structure
US6417604B1 (en) 1996-12-12 2002-07-09 Siemens Aktiengesellshaft Low pressure gas discharge switch
DE19809828C1 (de) * 1998-02-27 1999-07-08 Eckehard Dr Ing Gebauer Vakuumleistungsschalter für Niederspannung
WO2006003114A2 (fr) * 2004-06-30 2006-01-12 Siemens Aktiengesellschaft Contact de commutation pour tubes commutateurs a vide
WO2006003114A3 (fr) * 2004-06-30 2006-07-06 Siemens Ag Contact de commutation pour tubes commutateurs a vide
CN1969353B (zh) * 2004-06-30 2010-11-03 西门子公司 用于真空开关管的带有环形支承体的开关触头
EP2549503A1 (fr) * 2011-07-19 2013-01-23 ABB Technology AG Interrupteur sous vide avec commande simple et intervalle double intégré

Also Published As

Publication number Publication date
DE3900684A1 (de) 1990-07-26
DE3900684C2 (fr) 1990-10-25
EP0381843A3 (fr) 1990-11-07
JPH02227923A (ja) 1990-09-11

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