EP0140173B1 - Schaltstück für elektrische Schaltgeräte - Google Patents

Schaltstück für elektrische Schaltgeräte Download PDF

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Publication number
EP0140173B1
EP0140173B1 EP84111562A EP84111562A EP0140173B1 EP 0140173 B1 EP0140173 B1 EP 0140173B1 EP 84111562 A EP84111562 A EP 84111562A EP 84111562 A EP84111562 A EP 84111562A EP 0140173 B1 EP0140173 B1 EP 0140173B1
Authority
EP
European Patent Office
Prior art keywords
contact
switching device
supply line
arc
facing
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
Application number
EP84111562A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0140173A1 (de
Inventor
Manfred Dipl.-Ing. Müller
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.)
Siemens AG
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.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT84111562T priority Critical patent/ATE31841T1/de
Publication of EP0140173A1 publication Critical patent/EP0140173A1/de
Application granted granted Critical
Publication of EP0140173B1 publication Critical patent/EP0140173B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/446—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using magnetisable elements associated with the contacts
    • 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
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns

Definitions

  • the invention relates to a contact piece for electrical switching devices, in particular contactors, with a stepped power supply line and an arc guide plate which is guided at a distance from the contact pad and which has a U-shaped contact pad and whose U-web extends approximately in the plane of the contact pad and its U-leg are offset in parallel away from the contact point.
  • the contact pad is practically in the same plane with the entire arc guide plate, so that particularly precise guidance is required for the movable contact piece so that the contact contact of the movable contact piece does not rest on the arc guide plate.
  • the supply line is also U-shaped, so that the contact piece can only be used for devices with low current carrying capacity; because the U-shaped supply line causes the switching bridge to be lifted at high currents (DE-OS 2803249).
  • the invention has for its object to improve a contact piece of the type mentioned above with regard to the extinguishing behavior even at low short-circuit currents, which is simple to manufacture, assemble and for operation with contact pieces which can be produced without particularly close tolerances for the guidance of the contact piece, suitable is.
  • This is achieved in a simple manner in that the power supply line is stepped away from the contact point and the web of the arc baffle forms one leg of another U, the other leg of which on the side of the free end of the stepped power supply line offset from the fastening screw facing the contact point pervaded.
  • the setting of the required air gap between the contact pad and the power supply line and the arc baffle can be achieved in a simple manner if slugs are formed on the arc baffle facing the power supply line.
  • slugs are also present in the switching device according to US Pat. No. 3,118,036; however, they are used for power transmission here.
  • an open slot is provided as a fastening hole on the fastening leg of the arc guide plate
  • the arc guide plate can be inserted in a simple manner after the fastening screw has been inserted through the fastening hole of the power supply line.
  • the slugs are pressed against the power supply line, so that the power supply line and arc guide plate together with the fastening screw form a complete unit.
  • the contact piece consists of the step-shaped curved power supply line 1 with the contact pad 2, which cooperates with the contact pad 3 of the switching bridge 4, as well as the U-shaped arc guide plate 5 and the fastening screw 6.
  • the arc guide plate is provided with a knockout 7, into which a part protrudes the power supply line 1, namely between the power supply line 1 and the edge parts 8 of the arc baffle around the contact pad 2, an air gap 9, so that the arc baffle is initially only electrically connected to the power supply line 1 via the fastening screw 6.
  • the step-shaped power supply line 1 has the advantage that the current carrying capacity of the contact arrangement is not adversely affected by a U-shaped supply line.
  • the U-shaped configuration is present for the arc running, i.e. this results in a switchable current loop for the arcing.
  • the slugs 11 bridging the air gap slightly change the function practically nothing. However, they are used for pre-assembly of the contact.
  • the fastening screw 6 is inserted into the fastening hole in the power supply line 1.
  • the arc baffle is inserted through the open slot 12 between the fastening screw and the power supply line.
  • the slugs are then pressed against the power supply line 1 by pressing the edge parts 8 in the direction of the arrows 13, so that the preassembled unit results.
  • the free end 14 of the arc guide plate 5 lies approximately in the plane of the contact pad 2.
  • the part 15 of the leg (17) is offset parallel to it, pointing away from the contact point.
  • the contact bridge 4 can also be placed at an angle without coming into contact with the edge parts 8 of the arc guide plate (5).
  • the opening of the U is so large that sufficient arcing is ensured without the current carrying capacity of the switching element being adversely affected.
  • the fastening screw 6 is captive after pressing, since the screw head is larger than the opening 16 for the screwdriver.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Contacts (AREA)
  • Adornments (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Keying Circuit Devices (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Relay Circuits (AREA)
  • Brushes (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
EP84111562A 1983-10-14 1984-09-27 Schaltstück für elektrische Schaltgeräte Expired EP0140173B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84111562T ATE31841T1 (de) 1983-10-14 1984-09-27 Schaltstueck fuer elektrische schaltgeraete.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833337515 DE3337515A1 (de) 1983-10-14 1983-10-14 Schaltstueck fuer elektrische schaltgeraete
DE3337515 1983-10-14

Publications (2)

Publication Number Publication Date
EP0140173A1 EP0140173A1 (de) 1985-05-08
EP0140173B1 true EP0140173B1 (de) 1988-01-07

Family

ID=6211908

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84111562A Expired EP0140173B1 (de) 1983-10-14 1984-09-27 Schaltstück für elektrische Schaltgeräte

Country Status (10)

Country Link
US (1) US4618748A (ko)
EP (1) EP0140173B1 (ko)
JP (1) JPS60100330A (ko)
AT (1) ATE31841T1 (ko)
BR (1) BR8405100A (ko)
DE (2) DE3337515A1 (ko)
DK (1) DK158424C (ko)
ES (1) ES281940Y (ko)
FI (1) FI80359C (ko)
IN (1) IN161308B (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3447537A1 (de) * 1983-10-14 1986-07-10 Siemens AG, 1000 Berlin und 8000 München Schaltstueck fuer elektrische schaltgeraete

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4766273A (en) * 1985-06-17 1988-08-23 Eaton Corporation High current double-break electrical contactor
JPH0724172B2 (ja) * 1986-06-10 1995-03-15 三菱電機株式会社 接 点
IT208625Z2 (it) * 1986-12-11 1988-05-28 Sace Spa Contatto fisso per interruttori di bassa tensione.
DE8906799U1 (de) * 1989-06-02 1990-09-27 Siemens AG, 1000 Berlin und 8000 München Schaltstück für elektrische Schaltgeräte
CH678989A5 (ko) * 1989-10-04 1991-11-29 Sprecher & Schuh Ag
FR2696273B1 (fr) * 1992-09-25 1994-11-18 Telemecanique Disjoncteur électrique à soufflage magnétique.
FR2713391B1 (fr) * 1993-12-06 1995-12-29 Telemecanique Dispositif de rupture de courant d'appareil interrupteur notamment pour contacteur ou contacteur-disjoncteur.
DE19814410C2 (de) * 1998-03-31 2000-03-23 Moeller Gmbh Anordnung zur Festkontaktbefestigung für elektrische Schaltgeräte
US7716816B2 (en) * 2006-09-22 2010-05-18 Rockwell Automation Technologies, Inc. Method of manufacturing a switch assembly
US7551050B2 (en) * 2006-09-22 2009-06-23 Rockwell Automation Technologies, Inc. Contactor assembly with arc steering system
US7633399B2 (en) 2007-02-27 2009-12-15 Eaton Corporation Configurable arc fault or ground fault circuit interrupter and method
EP2573784B1 (de) * 2011-09-21 2016-08-03 Siemens Aktiengesellschaft Leistungsschalter mit optimierter Gehäusestabilisierung durch klemmend wirkende Festschaltstücke
JP2015109246A (ja) * 2013-12-05 2015-06-11 日本電産サンキョー株式会社 スイッチ部材およびスイッチ装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639354A (en) * 1950-10-07 1953-05-19 Gen Electric Electric circuit breaker
NL194469A (ko) * 1954-02-04 Merlin Gerin
US3118036A (en) * 1962-07-12 1964-01-14 Gen Electric Circuit breaker contact and arc extinguishing means
FR1366120A (fr) * 1963-05-28 1964-07-10 App S Thermoflex Etablissement Dispositif de soufflage magnétique de l'arc de coupure d'un interrupteur électrique
FR1399516A (fr) * 1963-06-28 1965-05-14 Thomson Houston Comp Francaise Perfectionnements à des interrupteurs électriques
FR2378344A1 (fr) * 1977-01-25 1978-08-18 Telemecanique Electrique Piece de soufflage
JPS5814441A (ja) * 1981-07-17 1983-01-27 三菱電機株式会社 回路しや断器
JPS5825031A (ja) * 1981-08-06 1983-02-15 三菱電機株式会社 回路しや断器
EP0079978A1 (de) * 1981-11-21 1983-06-01 Sprecher & Schuh AG Kontaktstück für ein elektrisches Schaltgerät, insbesondere für ein Schütz
KR860002080B1 (ko) * 1982-01-28 1986-11-24 카다야마히도 하지로 전력 개폐장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3447537A1 (de) * 1983-10-14 1986-07-10 Siemens AG, 1000 Berlin und 8000 München Schaltstueck fuer elektrische schaltgeraete

Also Published As

Publication number Publication date
ATE31841T1 (de) 1988-01-15
FI843295A0 (fi) 1984-08-21
JPH0228214B2 (ko) 1990-06-22
JPS60100330A (ja) 1985-06-04
ES281940U (es) 1985-04-01
ES281940Y (es) 1986-09-01
IN161308B (ko) 1987-11-07
DK158424C (da) 1990-10-22
EP0140173A1 (de) 1985-05-08
US4618748A (en) 1986-10-21
FI843295A (fi) 1985-04-15
FI80359B (fi) 1990-01-31
DK488384A (da) 1985-04-15
DK488384D0 (da) 1984-10-12
FI80359C (fi) 1990-05-10
DK158424B (da) 1990-05-14
BR8405100A (pt) 1985-08-27
DE3337515A1 (de) 1985-05-02
DE3468581D1 (en) 1988-02-11

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