EP0885448B1 - Elektromagnetisches schaltgerät mit zwangsführung - Google Patents
Elektromagnetisches schaltgerät mit zwangsführung Download PDFInfo
- Publication number
- EP0885448B1 EP0885448B1 EP97906135A EP97906135A EP0885448B1 EP 0885448 B1 EP0885448 B1 EP 0885448B1 EP 97906135 A EP97906135 A EP 97906135A EP 97906135 A EP97906135 A EP 97906135A EP 0885448 B1 EP0885448 B1 EP 0885448B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- switching device
- electromagnetic switching
- contact support
- transmission lever
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
- H01H50/645—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection
- H01H50/646—Driving arrangements between movable part of magnetic circuit and contact intermediate part making a resilient or flexible connection intermediate part being a blade spring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/001—Means for preventing or breaking contact-welding
Definitions
- the invention relates to an electromagnetic switching device Forced operation, in which the normally open contacts at a fixed Do not touch the break contact.
- Such an electromagnetic known from DE 35 40 460 A1 Switching device contains an armature comprising Magnet system, a movable contact carrier in which with Movable contacts forming fixed contacts NC and NO contacts Contact parts are held and one by spring force effected rest position, and an additional elastic Connection between anchor and contact carrier in the form of a against the contact carrier and via a bracket against the anchor supporting spring, which ensures that when welded NC contact a further movement of the armature without actuation the NO contacts are possible (forced operation).
- a Electromagnetic switching device according to EP 358 050 B1 is such further developed that the welded NC contact additionally elastic against the switchgear housing supporting yoke of the magnet system until the closing of the Magnet system can accommodate.
- the disadvantage of the stand The technique is that to achieve positive control additional elastic parts are required.
- the state of the Technology is not to be found, like the positive guidance in electromagnetic switching devices to be realized at which anchor and contact carrier are arranged in parallel planes and their directions of movement are not one after the other, but run parallel or anti-parallel, as in Small shooters are often the case, see for example DE 31 46 780 C2.
- the object of the invention is therefore, the positive control without additional components and in the case of parallel arrangement of anchor and contact carrier.
- the support of the Transfer lever against the switchgear housing cheap the transmission ratio of the forces to be transmitted, especially when the transmission lever with a free End coupled with the anchor, free with the other End against the housing part receiving the contact carrier supports and between the two ends with the contact carrier is coupled.
- the electromagnetic switching device 2 is shown in FIGS. 1 and 2 surrounded by a switchgear housing 4.
- a magnet system is arranged as a contact drive, that of a fixed magnetic part 6 and one movable anchor 8 is made.
- linear movement of the armature 8 in the direction on the fixed magnetic part 6 is from a transmission lever 10 on a contact bridge movable parallel to the armature 8 12 transferred.
- On the contact carrier 12 are not shown movable contact parts held with also not shown, attached to the switchgear housing 4 Form fixed contacts normally closed or normally open contacts. In 1, the break contacts are closed and the normally open contacts opened, with the armature 8 and / or the contact carrier 12, not shown in detail, act returning spring forces.
- the transmission lever 10 is with his a free end 14 coupled to the armature 8. It supports itself with its other free end 16 against a support point 18th from that on the housing part of the switchgear housing 4 is located, in which the contact carrier 12 is mounted. Between its two ends 14 and 16 is the transmission lever coupled to the contact carrier 12 so that when de-energized or excitation of the magnet system with the movement of the armature 8 a favorable power transmission ratio in the corresponding Parallel movement of the contact carrier in the off position (Fig. 1) or in the on position (Fig. 2).
- Fig. 3 the case is shown that at least one break contact is welded or the contact carrier 12 by a mechanical lock, not shown, is blocked.
- a counterforce acts when the magnet system is excited F on the contact carrier 12.
- the transmission lever 10 is advantageously more resilient Lever (snap lever) trained when exceeded gives way to a critical load by leaps and bounds.
- the magnet system is replaced by magnetic ones Contact of the armature 8 with the fixed magnetic part 6 closed and on the other hand the counterforce F on the contact carrier 12 limited. This will both overload the Magnetic circuit as well as the closing of the normally open contacts effectively prevents, i.e. the forced control of the electromagnetic Switching device 2 is guaranteed in any case.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Electromagnets (AREA)
- Braking Arrangements (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Road Signs Or Road Markings (AREA)
- Burglar Alarm Systems (AREA)
Description
- Figur 1:
- ein erfindungsgemäßes elektromagnetisches Schaltgerät in schematischer Darstellung in der Aus-Stellung;
- Figur 2:
- desgleichen in der Ein-Stellung und
- Figur 3:
- desgleichen bei blockierter Ein-Stellung.
Claims (5)
- Elektromagnetisches Schaltgerät mit Zwangsführung, enthaltend ein einen Anker (8) umfassendes Magnetsystem, einen beweglichen Kontaktträger (12), in dem mit Festkontakten Öffner- und Schließerkontakte bildende bewegliche Kontaktteile gehalten sind und der eine durch Federkraft bewirkte Ruhelage einnimmt, und eine elastische Verbindung zwischen Anker (8) und Kontaktträger (12), wodurch erreicht wird, daß bei verschweißtem Öffnerkontakt eine Weiterbewegung des Ankers (8) ohne Betätigung der Schließerkontakte möglich ist, dadurch gekennzeichnet, daß die Bewegung von Anker (8) und Kontaktträger (12) parallel beabstandet verlaufen und daß ein elastisch nachgiebiger Übertragungshebel (10) vorgesehen ist, der die Wirkverbindung zwischen Anker (8) und Kontaktträger (12) herstellt.
- Elektromagnetisches Schaltgerät nach Anspruch 2, dadurch gekennzeichnet, daß sich der Übertragungshebel (10) gegen das Schaltgerätegehäuse (4) abstützt.
- Elektromagnetisches Schaltgerät nach Anspruch 3, dadurch gekennzeichnet, daß der Übertragungshebel (10) mit einem freien Ende (14) mit dem Anker (8) gekoppelt ist, sich mit dem anderen freien Ende (16) gegen den den Kontaktträger (12) aufnehmenden Gehäuseteil abstützt und zwischen beiden Enden (14, 16) mit dem Kontaktträger (12) gekoppelt ist.
- Elektromagnetisches Schaltgerät nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß bei verschweißtem Öffnerkontakt die Gegenkraft (F) auf den Kontaktträger (12) durch die maximale Übertragungskraft des nachgebenden Übertragungshebel (10) begrenzt ist.
- Elektromagnetisches Schaltgerät nach Anspruch 4, dadurch gekennzeichnet, daß der Übertragungshebel (10) eine Federkennlinie aufweist, die beim Überschreiten einer kritischen Belastung sprunghaft nachgibt.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29604046U DE29604046U1 (de) | 1996-03-05 | 1996-03-05 | Eletromagnetisches Schaltgerät mit Zwangsführung |
| DE29604046U | 1996-03-05 | ||
| PCT/EP1997/000956 WO1997033289A1 (de) | 1996-03-05 | 1997-02-27 | Elektromagnetisches schaltgerät mit zwangsführung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0885448A1 EP0885448A1 (de) | 1998-12-23 |
| EP0885448B1 true EP0885448B1 (de) | 1999-12-01 |
Family
ID=8020546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97906135A Expired - Lifetime EP0885448B1 (de) | 1996-03-05 | 1997-02-27 | Elektromagnetisches schaltgerät mit zwangsführung |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6094117A (de) |
| EP (1) | EP0885448B1 (de) |
| JP (1) | JP3320738B2 (de) |
| CN (1) | CN1078961C (de) |
| AT (1) | ATE187275T1 (de) |
| DE (2) | DE29604046U1 (de) |
| WO (1) | WO1997033289A1 (de) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1437396A (fr) * | 1963-09-28 | 1966-05-06 | Siemens Ag | Appareil de commutation actionné de façon électromagnétique, de préférence un petit contacteur |
| FR1405231A (fr) * | 1963-11-21 | 1965-07-09 | Europe Mfg Trust | Perfectionnement à la commande des appareils du type relais |
| DE3146780C2 (de) * | 1981-11-25 | 1985-10-24 | Siemens AG, 1000 Berlin und 8000 München | Mehrfachkontaktanordnung |
| DE3577159D1 (de) * | 1984-08-17 | 1990-05-17 | Siemens Ag | Wechselstromschuetz. |
| DE3540460A1 (de) * | 1985-11-14 | 1987-05-21 | Siemens Ag | Elektromagnetisches schaltgeraet |
| DE8811206U1 (de) * | 1988-09-05 | 1988-10-27 | Siemens AG, 1000 Berlin und 8000 München | Elektromagnetisches Schaltgerät |
| JPH0758606B2 (ja) * | 1989-03-24 | 1995-06-21 | 三菱電機株式会社 | 電磁接触器 |
| DE3927219C2 (de) * | 1989-08-17 | 2001-07-05 | Schlegel Georg Gmbh & Co | Elektrische Schaltvorrichtung mit einer gewölbten Schnappscheibe |
-
1996
- 1996-03-05 DE DE29604046U patent/DE29604046U1/de not_active Expired - Lifetime
-
1997
- 1997-02-27 EP EP97906135A patent/EP0885448B1/de not_active Expired - Lifetime
- 1997-02-27 AT AT97906135T patent/ATE187275T1/de not_active IP Right Cessation
- 1997-02-27 DE DE59700796T patent/DE59700796D1/de not_active Expired - Fee Related
- 1997-02-27 WO PCT/EP1997/000956 patent/WO1997033289A1/de not_active Ceased
- 1997-02-27 US US09/142,327 patent/US6094117A/en not_active Expired - Fee Related
- 1997-02-27 JP JP53141797A patent/JP3320738B2/ja not_active Expired - Fee Related
- 1997-02-27 CN CN97192816A patent/CN1078961C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1078961C (zh) | 2002-02-06 |
| JP3320738B2 (ja) | 2002-09-03 |
| JPH11505064A (ja) | 1999-05-11 |
| DE29604046U1 (de) | 1996-05-02 |
| ATE187275T1 (de) | 1999-12-15 |
| US6094117A (en) | 2000-07-25 |
| DE59700796D1 (de) | 2000-01-05 |
| CN1212783A (zh) | 1999-03-31 |
| EP0885448A1 (de) | 1998-12-23 |
| WO1997033289A1 (de) | 1997-09-12 |
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