DK143427B - CONTACT DEVICE FOR AN ELECTRIC SWITCH - Google Patents

CONTACT DEVICE FOR AN ELECTRIC SWITCH Download PDF

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Publication number
DK143427B
DK143427B DK143674AA DK143674A DK143427B DK 143427 B DK143427 B DK 143427B DK 143674A A DK143674A A DK 143674AA DK 143674 A DK143674 A DK 143674A DK 143427 B DK143427 B DK 143427B
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DK
Denmark
Prior art keywords
arc
contact
contact device
electric switch
switching device
Prior art date
Application number
DK143674AA
Other languages
Danish (da)
Other versions
DK143427C (en
Inventor
H Kohler
Original Assignee
Siemens 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.)
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Publication date
Application filed by Siemens Ag filed Critical Siemens Ag
Publication of DK143427B publication Critical patent/DK143427B/en
Application granted granted Critical
Publication of DK143427C publication Critical patent/DK143427C/en

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/46Means for extinguishing or preventing arc between current-carrying parts using arcing horns

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  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Contacts (AREA)

Description

(19) DANMARK C™) |j| (12) FREMLÆGGELSESSKRIFT mi U3U27 Β(19) DENMARK C ™) | j | (12) SUBMISSION WRITING in U3U27 Β

DIREKTORATET FOR PATENT- OG VAREMÆRKEVÆSENETDIRECTORATE OF THE PATENT AND TRADEMARKET SYSTEM

(21) Ansøgning nr. 1436/74 (51) |nt.CI.* H 01 H 9/30 (22) Indleveringsdag 15· tnar. 1974 (24) Løbedag 15· nar. 1974 (41) Aim. tilgængelig 27· sep. 197^· (44) Fremlagt 17· aug. 1981 (86) International ansøgning nr. " (86) International indleveringsdag -(85) Videreførelsesdag “ (62) Stamansøgning nr. “(21) Application No. 1436/74 (51) | nt.CI. * H 01 H 9/30 (22) Filing day 15 · tnar. 1974 (24) Race day 15 · fool. 1974 (41) Aim. available 27 Sep 197 ^ · (44) Posted 17 Aug. 1981 (86) International Application No. "(86) International Filing Day - (85) Continuation Day" (62) Stock Application No. "

(30) Prioritet 26. mar. 1973* 7311345 U, DE(30) Priority Mar 26 1973 * 7311345 U, DE

(71) Ansøger SIEMENS AKTIENGESELLSCHAFT, Berlin und Muenchen, 8 Muenc= hen 2, DE.(71) Applicant SIEMENS AKTIENGESELLSCHAFT, Berlin and Munich, 8 Muenc = hen 2, DE.

(72) Opfinder Helmut Kohier, DE.(72) Inventor Helmut Kohier, DE.

(74) Fuldmægtig Ingeniørfirmaet Giersing & Stellinger.(74) Associate Engineer Giersing & Stellinger.

—————— ' I ) . ......I . 1 I I I I . I I»—! !"*" I I I n 111 (54) Kontakt anordning for et elektrisk afbryderapparat.—————— 'I). ...... I. 1 I I I I. I I »-! ! "*" I I I n 111 (54) Contact device for an electrical circuit breaker.

Opfindelsen angår en kontaktanordning for et elektrisk afbryderapparat med en et lysbueforløb førende strømsløjfe og en forbindelsesleder i modsat retning af sløjfetilledningen.BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a switching device for an electrical circuit breaker having a current loop conducting loop and a connecting conductor in the opposite direction of the loop supply.

En sådan anordning er kendt fra DE-patentskrift 885 109. For at man ved denne kendte anordning skal kunne udnytte fordelen ved strømsløjfen, har man måttet give afbryderapparatet forholdsvis store dimensioner.Such a device is known from DE-patent specification 885 109. In order for this known device to be able to take advantage of the power loop, the switching device has had to have relatively large dimensions.

En tilsvarende stor udformning af afbryderen findes også ved afbryderapparatet ifølge GB-patentskrift 994 363, hvor der også findes yderligere ® dele, nemlig en C-formet blæsesko, som skal forhindre, at lysbuen løber mod væggene. Desuden er sløjfevirkningen til fremdrivning af. lysbuen ved denne ί kendte anordning ikke tilstrækkeligt udpræget.A similarly large design of the circuit breaker is also found in the circuit breaker according to GB patent specification 994 363, where there are also additional parts, namely a C-shaped blower shoe, which is intended to prevent the arc from running against the walls. In addition, the loop effect for propulsion of. the arc of this known device is not sufficiently pronounced.

OISLAND

-j. Opfindelsen har derfor til opgave at tilvejebringe en enkelt — fremstillelig kontaktanordning, som sikrer et godt lysbueforløb, og som har ^ ringe pladsbehov, uden at der hertil kræves yderligere dele. Dette opnås 3 ifølge opfindelsen på enkelt måde ved, at sløjfetilledningen som flad lysbueledende del af ferromagnetisk materiale er forlænget ud over et kontaktanlæg, og at den lysbueledende del er sammensvejst med den flade 2 143427 forbindelsesleder uden for kontaktanlæggets område til dannelse af strømsløjfen på den fra kontaktanlægget bortvendende side. Ved denne udformning af den lysbueledende del tjener denne som afskærmning for forbindelseslederens, dvs. strømtilledningens magnetfelt, så at lysbueløbeegenskaberne i hvert fald er lige så gode som ved en afbryder med store dimensioner, hvorhos der dog på grund af udformningen af den lysbueledende del af ferromagnetisk materiale tilvejebringes bedre forhold for lysbuen. En yderligere forenkling af kontaktanordningen ifølge opfindelsen kan opnås ved, at den lysbueledende del er forsynet med holdemidler i afbryderapparatets hus.j. It is therefore the object of the invention to provide a single-fabricated contact device which ensures a good arc operation and which has little space requirement, without requiring additional parts. This is achieved 3 in accordance with the invention in a simple way in that the loop supply as a flat arc conducting part of ferromagnetic material is extended beyond a contact plant, and that the arc conductor part is welded to the flat contact conductor outside the area of the contact plant to form the current loop on the the contact side of the contact system. In this embodiment of the arc conductive part, it serves as a shield for the connection conductor, ie. the magnetic field of the power supply, so that the arc-running properties are at least as good as a switch with large dimensions, although, due to the design of the arc-conducting part of ferromagnetic material, better conditions are provided for the arc. A further simplification of the contact device according to the invention can be achieved by providing the arc conductive part with retaining means in the housing of the switching device.

Det er ganske vist kendt fra DE-patentskrift 317 407 til en elektrisk afbryder at benytte en egnet bærer af mindre godt ledende metal, på hvilket der pa de steder, hvor der sker strømoverførsel og strømafbrydelse, er pålagt et ledende lag, fortrinsvis kobber eller messing. Disse kobber eller messingsteder påføres her i tilstrækkelig tykkelse for på disse steder at gøre den elektriske modstand ringe og gøre modstanden imod mekanisk slid stor samt på disse steder at gøre beskyttelsen tilstrækkelig høj imod ødelæggelser fremkaldt af afbrydningslysbuen. Bæreren er her således ikke udformet som lysbueledende skinne.It is admittedly known from DE patent specification 317 407 for an electrical switch to use a suitable carrier of less well-conductive metal, in which a conductive layer, preferably copper or brass, is applied in the places where there is a current transfer and a power cut. . These copper or brass sites are applied in sufficient thickness here to make the electrical resistance low and to increase the resistance to mechanical wear in these places and to make the protection sufficiently high against the damage caused by the interrupt arc. The carrier is thus not designed as an arc conductive rail.

Et udførelseseksempel ifølge opfindelsen beskrives nærmere i det følgende under henvisning til tegningen, hvor fig. 1 viser et snit igennem et afbryderapparat med kontaktanordning ifølge opfindelsen, fig. 2 viser set forfra en lysbueledende del med påsat kontaktanlæg og forbindelsesleder til anvendelse ved afbryderapparatet i fig. 1, og fig. 3 viser det samme som fig. 2, men set fra siden.An embodiment of the invention will now be described in more detail with reference to the accompanying drawings, in which: FIG. 1 shows a section through a switching device with contact device according to the invention; FIG. 2 is a front elevational view of an arc conducting part with attached contact system and connecting conductor for use with the switching device of FIG. 1, and FIG. 3 shows the same as FIG. 2, but viewed from the side.

Det på fig. 1 viste afbryderapparat består af et hus 1, i hvilket der er anbragt en til kontaktanordningen hørende slukkeindretning 2, som i det foreliggende tilfælde består af gennemhullede keramikdele, og faste kontaktdele 3 og 4 såvel som en bimetaludløser 5 samt en kortslutningshurtigudløser 6. En afhængig af udløseren og ved hjælp af et ikke nærmere angivet afbrydnings spærreorgan bevægelig kontaktbrobærer 7 tjener som holder for en kontaktbro 8, som kan bringes i forbindelse med fastkontaktdelene 3 og 4. En kontakttrykfjeder 20 tjener til frembringelse af kontakttryk. Fastkontaktdelene 3 og 4 består af en lysbueledende del 9, henholdsvis 10, på hvilket der under indskydelse af et fx. galvanisk udfældet kobberlag 12 er anbragt et kontaktanlæg 11, og som på den anden side står i elektrisk forbindelse med en forbindelsesledning 13, henholdsvis 14, fx. ved påsvejsning af denne ved 3 143A27 stedet 15, henholdsvis 16, hvilke ledninger pi sin side ender i udløseren 5, henholdsvis 6. Tilslutning til fx. netklenuner sker via tilslutningsskrjjer 17, hvis tilslutningsskinner 18 fører ind i udløseren 5, henholdsvis 6. Forbindelseslederen 13, henholdsvis 14, er s ammens vejst med den lysbueledende del 9, hhv 10, på den side af denne, som vender bort fra kontaktanlægget 11 og det pålagte lag 12, nemlig mere eller mindre i nærheden af kpntaktanlægget 11, si at spændingfaldet over den af jern fremstillede lysbueledende del forbliver ringe, medens strømsløjfevirkningen for lyshuen bibeholdes. Afbryderstykkets forlængelse pi den side, der vender bort fra den svejste forbindelse, tjener til lysbuens forløb og afskærmer det magnetiske felt fra strømføringen. Den lysbueledende del 9, hhv 10, er som vist pi fig. 1 og 3 forsynet med holdemidler 19, i det foreliggende tilfælde opslidsede dele, således at forbindelsesledningen, den lysbueledende del og kontaktanlægget kan forbindes fast med huset. Kobberlaget 12 muliggør en god loddeforhindelse mellem den lysbueledende del og kontsåktanlægget, hvilket navnlig ved sintermaterialer er fordelagtigt.The FIG. 1, a switching device 1 comprises a housing 1 in which a switching device 2 of the contact device is provided, which in the present case consists of pierced ceramic parts, and fixed contact parts 3 and 4, as well as a bimetal trigger 5 and a short-circuit quick release 6. The trigger and by means of a switching member 7 which is not specified, can be used as a support for a contact bridge 8 which can be connected to the fixed contact parts 3 and 4. A contact pressure spring 20 serves to generate contact pressure. The fixed contact portions 3 and 4 consist of an arc conductive portion 9 and 10, respectively, on which, during insertion of a e.g. galvanically precipitated copper layer 12 is provided with a contact plant 11 which, on the other hand, is electrically connected to a connecting line 13 and 14, e.g. by welding it at 3 143A27 the location 15, 16 respectively, which wires on its side end in the trigger 5 and 6. respectively. mains unions are made via connection screws 17, if connection rails 18 lead into the trigger 5 and 6. respectively. The connecting conductor 13 and 14, respectively, is the seam's path with the arc conducting part 9 and 10, respectively, on the side thereof which faces away from the contact system 11 and the applied layer 12, that is, more or less in the vicinity of the roofing system 11, so that the voltage drop across the arc-produced conductive portion remains low while maintaining the current loop effect of the light-hood. The elongation of the switch piece on the side facing away from the welded connection serves the course of the arc and shields the magnetic field from the conductor. The arc conductive portion 9 and 10, respectively, are shown in FIG. 1 and 3 provided with retaining means 19, in the present case slotted parts, so that the connecting line, the arc conducting part and the contact system can be connected firmly to the housing. The copper layer 12 enables a good solder connection between the arc conducting part and the impact sensor, which is particularly advantageous in sintering materials.

Ud over de lysbueledende dele ved fastafbryderstykkerne kpn der også findes sådanne lysbueledende dele ved kontaktbrpep 8, således at kontaktbroerne selv består af ferromagnetisk materiale, fortrinsvis jern, og de pålagte kobberlag findes pi den side, der vender imod fastafbryderstykkerne. Herved opnås der en hurtigere fjernelse af lysbuen fra det sted, hvor den opstår.In addition to the arc conducting portions of the fixed circuit breakers, there are also such arc conducting portions at contact bridge 8, such that the contact bridges themselves consist of ferromagnetic material, preferably iron, and the applied copper layers are located on the side facing the fixed circuit breakers. This results in a faster removal of the arc from the point where it arises.

DK143674A 1973-03-26 1974-03-15 CONTACT DEVICE FOR AN ELECTRIC SWITCH DK143427C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7311345U DE7311345U (en) 1973-03-26 1973-03-26 Contact arrangement for an electrical switching device
DE7311345 1973-03-26

Publications (2)

Publication Number Publication Date
DK143427B true DK143427B (en) 1981-08-17
DK143427C DK143427C (en) 1981-12-21

Family

ID=6637638

Family Applications (1)

Application Number Title Priority Date Filing Date
DK143674A DK143427C (en) 1973-03-26 1974-03-15 CONTACT DEVICE FOR AN ELECTRIC SWITCH

Country Status (14)

Country Link
AT (1) AT329664B (en)
BR (1) BR7402316D0 (en)
CA (1) CA1033789A (en)
CH (1) CH561954A5 (en)
DE (1) DE7311345U (en)
DK (1) DK143427C (en)
ES (1) ES201703Y (en)
FI (1) FI59891C (en)
FR (1) FR2225069A7 (en)
GB (1) GB1462087A (en)
IN (1) IN139846B (en)
SE (1) SE391063B (en)
TR (1) TR18683A (en)
ZA (1) ZA741450B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5665425A (en) * 1979-11-01 1981-06-03 Fuji Electric Co Ltd Circuit breaker
DE3603929A1 (en) * 1986-02-07 1987-08-13 Siemens Ag Electrical apparatus having at least one U-shaped contact element
AT387108B (en) * 1986-12-18 1988-12-12 Elektrovac Fabrikation Elektro METHOD FOR PRODUCING A SWITCH COMPONENT HAVING AN INSULATION BODY
FR2706072B1 (en) * 1993-06-02 1995-07-13 Telemecanique Electromechanical device arc switching switch.
DE4441211C2 (en) * 1994-11-19 2001-10-11 Marquardt Gmbh Electric device

Also Published As

Publication number Publication date
ZA741450B (en) 1975-02-26
BR7402316D0 (en) 1974-11-19
CA1033789A (en) 1978-06-27
SE391063B (en) 1977-01-31
AT329664B (en) 1976-05-25
IN139846B (en) 1976-08-07
TR18683A (en) 1977-06-23
FI59891C (en) 1981-10-12
FI59891B (en) 1981-06-30
CH561954A5 (en) 1975-05-15
FR2225069A7 (en) 1974-10-31
DE7311345U (en) 1974-09-05
ES201703U (en) 1975-10-01
GB1462087A (en) 1977-01-19
ATA244374A (en) 1975-08-15
ES201703Y (en) 1976-02-01
DK143427C (en) 1981-12-21

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