EP0471893A2 - Jeu de ressorts de contact pour des courants électriques forts - Google Patents

Jeu de ressorts de contact pour des courants électriques forts Download PDF

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Publication number
EP0471893A2
EP0471893A2 EP90124632A EP90124632A EP0471893A2 EP 0471893 A2 EP0471893 A2 EP 0471893A2 EP 90124632 A EP90124632 A EP 90124632A EP 90124632 A EP90124632 A EP 90124632A EP 0471893 A2 EP0471893 A2 EP 0471893A2
Authority
EP
European Patent Office
Prior art keywords
contact
contact spring
contact member
spring set
bow
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Withdrawn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
EP90124632A
Other languages
German (de)
English (en)
Other versions
EP0471893A3 (en
Inventor
Richard Siepmann
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
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP0471893A2 publication Critical patent/EP0471893A2/fr
Publication of EP0471893A3 publication Critical patent/EP0471893A3/de
Withdrawn legal-status Critical Current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
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force

Definitions

  • the invention relates to a contact spring set for high electrical currents with two elongated contact members arranged approximately parallel with their respective main parts, each of which is fastened at one end and can be moved relative to one another with its opposite free ends for the purpose of making contact.
  • Such a contact spring set of conventional type is shown with its basic structure in FIG. 3.
  • a fixed contact spring 21 and a movable contact spring 22 are each clamped on one side in a carrier 23. In the vicinity of their free ends, they carry contact pieces 24 and 25 which touch one another in a switching position and thus make contact.
  • the movable contact spring 22 is pressed by an actuator 26 against the fixed contact spring 21 (in the direction of arrow 27), whereby the contact force is generated.
  • the contact force could also be generated by appropriate pretensioning of the movable contact spring 22, which would then result in a break contact. To open the contact, an actuator would then have to act against arrow 27.
  • the contact forces required to carry high impulse currents can no longer be generated with the volume-reduced magnet system.
  • the parallel contact springs are pushed apart by the electrodynamic forces, so that a contact opening occurs during the current pulse. This results in a powerful arc that can lead to welding of the contacts.
  • Such pulse currents can e.g. B. short-circuit currents of 1000 A, while the relay itself is only designed for a continuous current of 6 A, for example.
  • the object of the invention is to provide a contact spring set of the type mentioned at the outset, which solves the above-mentioned problem, in which no contact opening is possible due to the electrodynamic forces even when very high currents occur.
  • this object is achieved in that the contacting section of the first contact member is provided on a section bent in a bow shape from the main part and encompassing the second contact member, such that the contacting section of the second contact member lies between the main part and the contacting section of the first contact member.
  • the contact point between the two contact members is therefore of the parallel contact members by a corresponding bow-shaped design of a contact-making section so to speak turned outwards so that it no longer lies between the main parts of the two contact members or contact springs, but on the outside of the one contact member.
  • the switching movement and the direction of the contact force are thus reversed, so that the electrodynamic forces between the main parts of the two contact members no longer counteract the contact force, but even amplify it.
  • the contact spring set described in FIG. 1 has a fixed contact spring 1 and a movable contact spring 2, both of which are anchored at one end in a carrier 3.
  • the free end 2a of the movable contact spring is bent in a U-shape around the free end 1a of the fixed contact spring, so that the contacting section 2b with its contact piece 5 faces the outside of the fixed contact spring with its contact piece 4.
  • the closed state of the contact shown in Figure 1 is generated by an actuator 6 which is moved in the direction of arrow 7 and thus generates the contact force. If a very high pulse current i is now sent through the closed contact, electrodynamic forces 8 act which try to push the main parts of the contact springs 1 and 2 apart. However, since the contact between the outside of the fixed contact spring 1 and the bent section 2b, the electrodynamic forces act in the direction of the contact force and amplify it.
  • the principle of reversing the direction of contact force shown in FIG. 1 can also be used analogously for modified contact spring sets, also for break contacts.
  • FIG. 1 A further example of an NC contact is shown in FIG.
  • a fixed contact spring 11 with a movable contact spring 12 is arranged in such a way that a bow-shaped section 11a carries a contact-making section 11b on the outside of the movable contact spring 12.
  • the contact pieces 14 and 15 are in contact with each other in the example shown, since it is an NC contact, that is, a bias in the direction of arrow 17 keeps the contact closed in the idle state.
  • this contact can be opened when actuated. In this case too, a current pulse acts with the resulting electrodynamic forces in the sense of closing the contact, so that a bouncing or an arc is also avoided in this case.

Landscapes

  • Contacts (AREA)
  • Push-Button Switches (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP19900124632 1990-08-21 1990-12-18 Contact spring set for high electrical currents Withdrawn EP0471893A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4026425 1990-08-21
DE19904026425 DE4026425C1 (fr) 1990-08-21 1990-08-21

Publications (2)

Publication Number Publication Date
EP0471893A2 true EP0471893A2 (fr) 1992-02-26
EP0471893A3 EP0471893A3 (en) 1992-08-05

Family

ID=6412627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900124632 Withdrawn EP0471893A3 (en) 1990-08-21 1990-12-18 Contact spring set for high electrical currents

Country Status (5)

Country Link
EP (1) EP0471893A3 (fr)
JP (1) JPH04233112A (fr)
CA (1) CA2049462A1 (fr)
DE (1) DE4026425C1 (fr)
PT (1) PT98728A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023863A1 (fr) * 1992-05-15 1993-11-25 Siemens Aktiengesellschaft Agencement de lames de contact de relais de transmission et de commutation de courants eleves
WO1995005671A1 (fr) * 1993-08-19 1995-02-23 Blp Components Limited Dispositifs de commutation
EP1858038A3 (fr) * 2006-05-15 2009-06-10 Gruner AG Relais doté d'un renforcement de la force de contact
CN102903576A (zh) * 2012-10-27 2013-01-30 东莞市三友联众电器有限公司 磁保持继电器的簧片开关组件
CN105097307A (zh) * 2014-05-15 2015-11-25 沈阳工业大学 新型控制与保护开关触头系统
US20160071677A1 (en) * 2013-05-24 2016-03-10 Tyco Electronics Austria Gmbh Electric Switching Device with Enhanced Lorentz Force Bias
DE102019101074A1 (de) * 2019-01-16 2020-07-16 Phoenix Contact Gmbh & Co. Kg Relais und Anordnung zum Bestimmen einer Ankerstellung eines Relais

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409108C2 (de) * 1994-03-17 1996-03-28 Kostal Leopold Gmbh & Co Kg Elektrischer Vierwegeschalter
DE19532762A1 (de) * 1995-09-05 1997-03-06 Siemens Ag Elektromagnetisches Laststromrelais und Anordnung eines derartigen Relais auf einer Leiterplatte
JP5838920B2 (ja) * 2011-07-18 2016-01-06 アンデン株式会社 継電器
JP7066996B2 (ja) 2017-08-10 2022-05-16 オムロン株式会社 電磁継電器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB575823A (en) * 1943-04-16 1946-03-06 British Thomson Houston Co Ltd Improvements in and relating to electric switches with electrodynamically-reinforcedcontact
BE534764A (fr) * 1954-02-04 Merlin Gerin
DE1665958A1 (de) * 1967-06-12 1971-04-08 Siemens Ag Hochbelastbare Kontaktanordnung
DE1915991A1 (de) * 1969-03-28 1970-10-08 Gross Hans Spielzeugbaukasten
GB1251902A (fr) * 1969-05-23 1971-11-03
IT1038809B (it) * 1974-06-21 1979-11-30 Siemens Ag Apparecchio elettrico di manovra

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023863A1 (fr) * 1992-05-15 1993-11-25 Siemens Aktiengesellschaft Agencement de lames de contact de relais de transmission et de commutation de courants eleves
US5583471A (en) * 1992-05-15 1996-12-10 Siemens Aktiengesellschaft Contact spring arrangement for a relay for conducting and switching high currents
WO1995005671A1 (fr) * 1993-08-19 1995-02-23 Blp Components Limited Dispositifs de commutation
GB2295726A (en) * 1993-08-19 1996-06-05 Blp Components Ltd Switching devices
GB2295726B (en) * 1993-08-19 1997-08-06 Blp Components Ltd Switching devices
AU681175B2 (en) * 1993-08-19 1997-08-21 Blp Components Limited Switching devices
EP1858038A3 (fr) * 2006-05-15 2009-06-10 Gruner AG Relais doté d'un renforcement de la force de contact
CN102903576A (zh) * 2012-10-27 2013-01-30 东莞市三友联众电器有限公司 磁保持继电器的簧片开关组件
CN102903576B (zh) * 2012-10-27 2015-06-03 东莞市三友联众电器有限公司 磁保持继电器的簧片开关组件
US20160071677A1 (en) * 2013-05-24 2016-03-10 Tyco Electronics Austria Gmbh Electric Switching Device with Enhanced Lorentz Force Bias
US9691562B2 (en) * 2013-05-24 2017-06-27 Tyco Electronics Austria Gmbh Electric switching device with enhanced Lorentz force bias
CN105097307A (zh) * 2014-05-15 2015-11-25 沈阳工业大学 新型控制与保护开关触头系统
DE102019101074A1 (de) * 2019-01-16 2020-07-16 Phoenix Contact Gmbh & Co. Kg Relais und Anordnung zum Bestimmen einer Ankerstellung eines Relais
DE102019101074B4 (de) 2019-01-16 2021-08-12 Phoenix Contact Gmbh & Co. Kg Relais, Anordnung und Verfahren zum Bestimmen einer Ankerstellung eines Relais

Also Published As

Publication number Publication date
JPH04233112A (ja) 1992-08-21
EP0471893A3 (en) 1992-08-05
DE4026425C1 (fr) 1992-02-27
PT98728A (pt) 1993-09-30
CA2049462A1 (fr) 1992-02-22

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