DE102005050980A1 - Contact system for use with a low voltage electrical switch has a contact a carrier arm with leaf spring providing secure location - Google Patents
Contact system for use with a low voltage electrical switch has a contact a carrier arm with leaf spring providing secure location Download PDFInfo
- Publication number
- DE102005050980A1 DE102005050980A1 DE200510050980 DE102005050980A DE102005050980A1 DE 102005050980 A1 DE102005050980 A1 DE 102005050980A1 DE 200510050980 DE200510050980 DE 200510050980 DE 102005050980 A DE102005050980 A DE 102005050980A DE 102005050980 A1 DE102005050980 A1 DE 102005050980A1
- Authority
- DE
- Germany
- Prior art keywords
- contact
- leg
- contact system
- piece
- attack
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
- H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
- H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
- H01H77/102—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by special mounting of contact arm, allowing blow-off movement
- H01H77/104—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by special mounting of contact arm, allowing blow-off movement with a stable blow-off position
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
- H01H1/22—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact
- H01H1/221—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member
- H01H1/226—Contacts characterised by the manner in which co-operating contacts engage by abutting with rigid pivoted member carrying the moving contact and a contact pressure spring acting between the pivoted member and a supporting member having a plurality of parallel contact bars
Abstract
Description
Die Erfindung betrifft ein Kontaktsystem für einen Niederspannungsschalter, insbesondere für Leistungs- oder Motorschutzschalter.The Invention relates to a contact system for a low-voltage switch, especially for performance or motor protection switch.
Ein
in der
Die zwischen der Schaltwelle und dem Schaltstück ausgeübte Federkraft vermittelt gemeinsam mit der geometrischen Anordnung der Lagerung des Schaltstücks und des sich über die Abwinklung (Winkelarm) verlagernden Angriffspunkts des ersten Schenkels an der Angriffsrundung (Abrollachse) einen Kipp-Punkt-Mechanismus. Der erste Schenkel liegt an der am Schaltstück angeordneten Abrollachse an. Die zwischen der Schaltwelle und dem Schaltstück ausgeübte Federkraft vermittelt gemeinsam mit der geometrischen Anordnung der Lagerung des Schaltstücks und des sich über die Abwinklung verlagernden Angriffspunkts des ersten Schenkels an der Abrollachse den Kipp-Punkt-Mechanismus. Das Schaltstück wird dabei in einer stabilen Geschlossenstellung gehalten und nach einer Öffnungsbewegung durch Überschreiten eines instabilen Kipp-Punkts in einer stabilen Offenstellung gehalten.The between the shift shaft and the contact piece exerted spring force mediated together with the geometric arrangement of the bearing of the contact piece and of himself over the bend (angle arm) displacing attack point of the first leg at the attack rounding (Abrollachse) a tilt-point mechanism. The first leg is located on the rolling element arranged on the rolling axis at. The force exerted between the switching shaft and the switching element spring force conveys together with the geometric arrangement of storage of the contact piece and about himself the bending angle of the attacking point of the first leg on the roll-off axis the tilt-point mechanism. The switching piece is kept in a stable closed position and after an opening movement by exceeding an unstable tilt point held in a stable open position.
Der Nachteil dieser Anordnung ist, dass die als Schraubenfeder (als Torsionsfeder) ausgebildete Kontaktkraftfeder sehr schwer kalibrierbar ist. Die Länge der Schenkel und die Stärke der Federkraft muss präzise auf die zuverlässige Funktion des Kontaktsystems ausgebildet sein. Bei aus Federstahl ausgebildeten Schraubenfedern ist die geforderte Genauigkeit, insbesondere bei Federn, die für hohe Federkräfte hergestellt werden müssen, nur schwer erreichbar.Of the Disadvantage of this arrangement is that the coil spring (as Torsion spring) formed contact force spring very difficult to calibrate is. The length the thigh and the strength the spring force must be precise on the reliable Function of the contact system be formed. Made of spring steel Coil springs is the required accuracy, especially at Feathers for high spring forces have to be produced difficult to reach.
Es ist daher die Aufgabe der Erfindung, eine Anordnung anzugeben, bei der die genannten Nachteile vermieden werden.It is therefore the object of the invention to provide an arrangement at the mentioned disadvantages are avoided.
Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des unabhängigen Anspruches gelöst, während den abhängigen Ansprüchen vorteilhafte Weiterbildungen der Erfindung zu entnehmen sind.The The object is achieved by the characterizing features of the independent claim, while the dependent claims advantageous developments of the invention can be seen.
Der Kern der Erfindung ist, dass der erste Schenkel der Kontaktkraftfeder flächig und der zweite Schenkel der Kontaktkraftfeder flächig (als Blattfeder) ausgebildet sind, und beide Schenkel etwa parallel angeordnet sind. Die Lage des Angriffspunkts der Blattfeder (Angriffsrundung) am Schaltstück in Bezug auf den Drehpunkt des Schaltstücks ist derart, dass bei geschlossenem Kontakt der von der Kontaktkraftfeder auf das Schaltstück ausgeübte Kraftvektor mit kontaktschließender Wirkung am Schaltstückdrehpunkt vorbeiläuft, und bei einer Öffnungsbewegung die Angriffsrundung der Kontaktkraftfeder so verlagert wird, dass der Kraftvektor über den Schaltstückdrehpunkt verschwenkt wird und eine kontaktöffnende Wirkung erzeugt.Of the The core of the invention is that the first leg of the contact force spring flat and the second leg of the contact force spring surface (as a leaf spring) is formed are, and both legs are arranged approximately parallel. The location the point of attack of the leaf spring (attack rounding) on the contact in relation on the fulcrum of the contact piece is such that when the contact is closed by the contact force spring on the contact piece practiced Force vector with contact closing Effect at the switching point pivot point passes, and at an opening movement the attack rounding of the contact force spring is shifted so that the force vector over the switching piece pivot point is pivoted and generates a contact opening effect.
Die Vorteile einer Blattfeder liegen darin, dass die Feder relativ kurz und mit eindeutigen Randbedingungen ausgebildet und kalibriert werden kann. Auch ist der Einbau einer Blattfeder in das Kontaktsystem leichter zu bewerkstelligen als bei einer Torsionsfeder. Ein allein auf Biegebeanspruchung verwendetes Werkstück hat hier deutliche Vorteilen, weil die auftretenden relativ linearen Kräfte besser beherrschbar und einstellbar sind als Torsionskräfte.The Advantages of a leaf spring are that the spring is relatively short and be designed and calibrated with clear boundary conditions can. Also, the installation of a leaf spring in the contact system easier to accomplish than with a torsion spring. One alone used on bending stress workpiece has significant advantages, because the occurring relatively linear forces are better manageable and are adjustable as torsional forces.
Zum
weiteren Umfang der Erfindung, beziehungsweise zu vorteilhaften
Ausgestaltungen der Erfindung wird folgendes ausgeführt:
Am
Schaltstück
kann ein Haltesteg ausgebildet sein, an dem die Angriffsrundung
ausgebildet ist. Zum guten Kontakt mit der Blattfeder und zur Verminderung möglicher
Reibung, dann die Angriffsrundung poliert und/oder gehärtet ausgebildet
sein.For the further scope of the invention, or for advantageous embodiments of the invention, the following is carried out:
At the switching piece, a holding web may be formed, on which the attack rounded is formed. For good contact with the leaf spring and to reduce possible friction, then the attack rounding be polished and / or hardened.
Vorzugsweise ist die Angriffsrundung als Ablaufrolle ausgebildet. Hierbei soll es sich im Gegensatz zu einer einstückig mit dem Schaltstück ausgebildeten Angriffsrundung um eine in einer Bohrung drehbare Rolle handeln. Hierdurch lässt sich die Reibung zwischen den Teilen noch verringern.Preferably, the attack rounded is designed as a drain role. This is to act in contrast to a integrally formed with the contact piece offensive round about a rotatable in a bore role. This allows the Rei Reduce exercise between parts.
Am zweiten Schenkel können Rastmittel zum sicheren Befestigen und Verrasten in der Rastöffnung ausgebildet sein. Die Rastmittel können seitlich am zweiten Schenkel vorhandene Rastnasen sein. Oder ein Rastmittel ist derart ausgebildet, dass in der Mitte des zweiten Schenkels eine Einprägung vorhanden ist, die mit einer in der Rastöffnung ausgebildeten Noppe zusammenwirkt.At the second leg can Locking means for secure fastening and locking formed in the latching opening be. The locking means can be laterally on the second leg existing locking lugs. Or a Locking means is designed such that in the middle of the second Schenkels an impression available is that with one in the latch opening trained knob cooperates.
Ein Rastmittel kann eine in der Mitte des zweiten Schenkels vorhandene Nase sein, die mit einer in der Rastöffnung ausgebildeten Vertiefung zusammenwirkt.One Locking means can be present in the middle of the second leg Be nose, with a recess formed in the detent opening interacts.
Im ersten Schenkel der Kontaktkraftfeder kann ein Schlitz ausgebildet sein, und der der Haltesteg am Schaltstück kann derart ausgebildet sein, dass der Haltesteg im Schlitz läuft. in the first leg of the contact force spring can form a slot be, and the holding web on the contact piece can be formed be that the holding bar runs in the slot.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus dem folgenden, anhand von Figuren erläuterten Ausführungsbeispiel. Es zeigen im EinzelnenFurther Details and advantages of the invention will become apparent from the following explained with reference to figures Embodiment. They show in detail
Die
Kontaktkraftfeder
Das
Ende
In
einer besonderen Ausführungsform
der Blattfeder
Der
zweite Schenkel
Die
Breite der beiden Schenkel kann unterschiedlich sein. In
Claims (9)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510050980 DE102005050980B4 (en) | 2005-10-25 | 2005-10-25 | Contact system for a low-voltage switch |
FR0609297A FR2892558A1 (en) | 2005-10-25 | 2006-10-24 | CONTACT SYSTEM FOR LOW VOLTAGE SWITCH |
ITMI20062036 ITMI20062036A1 (en) | 2005-10-25 | 2006-10-24 | CONTACT SYSTEM FOR A LOW VOLTAGE SWITCH |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510050980 DE102005050980B4 (en) | 2005-10-25 | 2005-10-25 | Contact system for a low-voltage switch |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102005050980A1 true DE102005050980A1 (en) | 2007-04-26 |
DE102005050980B4 DE102005050980B4 (en) | 2007-11-08 |
Family
ID=37905333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510050980 Expired - Fee Related DE102005050980B4 (en) | 2005-10-25 | 2005-10-25 | Contact system for a low-voltage switch |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE102005050980B4 (en) |
FR (1) | FR2892558A1 (en) |
IT (1) | ITMI20062036A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103531409A (en) * | 2013-10-31 | 2014-01-22 | 德力西电气有限公司 | Contact system of circuit breaker |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102768921A (en) * | 2011-05-03 | 2012-11-07 | 西门子公司 | Repelling disconnection mechanism of breaker and breaker thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4409573A (en) * | 1981-04-23 | 1983-10-11 | Siemens-Allis, Inc. | Electromagnetically actuated anti-rebound latch |
EP0827174A1 (en) * | 1996-09-03 | 1998-03-04 | Eaton Corporation | Circuit breaker with latch preventing rebound of blow open contact arm |
EP0918348A2 (en) * | 1997-11-20 | 1999-05-26 | Eaton Corporation | Circuit breaker with automatic catch to prevent rebound of blow open contact arm |
EP1294005A1 (en) * | 2001-09-14 | 2003-03-19 | Schneider Electric Industries SAS | Improvement in blade assembly for a circuit breaker |
-
2005
- 2005-10-25 DE DE200510050980 patent/DE102005050980B4/en not_active Expired - Fee Related
-
2006
- 2006-10-24 FR FR0609297A patent/FR2892558A1/en not_active Withdrawn
- 2006-10-24 IT ITMI20062036 patent/ITMI20062036A1/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4409573A (en) * | 1981-04-23 | 1983-10-11 | Siemens-Allis, Inc. | Electromagnetically actuated anti-rebound latch |
EP0827174A1 (en) * | 1996-09-03 | 1998-03-04 | Eaton Corporation | Circuit breaker with latch preventing rebound of blow open contact arm |
EP0918348A2 (en) * | 1997-11-20 | 1999-05-26 | Eaton Corporation | Circuit breaker with automatic catch to prevent rebound of blow open contact arm |
EP1294005A1 (en) * | 2001-09-14 | 2003-03-19 | Schneider Electric Industries SAS | Improvement in blade assembly for a circuit breaker |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103531409A (en) * | 2013-10-31 | 2014-01-22 | 德力西电气有限公司 | Contact system of circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
FR2892558A1 (en) | 2007-04-27 |
ITMI20062036A1 (en) | 2007-04-26 |
DE102005050980B4 (en) | 2007-11-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: EATON INDUSTRIES GMBH, 53115 BONN, DE |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20120501 |