EP0035693A1 - Switching mechanism for electrical installation switch gear - Google Patents
Switching mechanism for electrical installation switch gear Download PDFInfo
- Publication number
- EP0035693A1 EP0035693A1 EP81101338A EP81101338A EP0035693A1 EP 0035693 A1 EP0035693 A1 EP 0035693A1 EP 81101338 A EP81101338 A EP 81101338A EP 81101338 A EP81101338 A EP 81101338A EP 0035693 A1 EP0035693 A1 EP 0035693A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lever
- projection
- switching mechanism
- release lever
- electrical installation
- 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
- 238000010616 electrical installation Methods 0.000 title claims abstract 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005246 galvanizing Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/505—Latching devices between operating and release mechanism
Definitions
- the invention relates to a switching mechanism for an electric nstallationsschalter I, especially for a residual-current circuit breaker, having a latching point, at which a support portion is pressed against an opening lever resiliently against a contact area on a ratchet lever.
- the trigger lever bears against the trigger pawl or vice versa, the trigger lever or the trigger pawl being pressed against the other pawl by means of a spring; If the latching point is released, the switching mechanism is triggered and the switch in question can trigger.
- the edges of the release lever and the ratchet lever are straight.
- certain bearing tolerances lead to unsyuntrical loads or surface pressures, which adversely affects the latching point.
- the unleashing force is with frequent triggering and / or incorrect position of the latching parts relative to one another, for example relatively high due to the misalignment of a latching part due to unfavorable tolerances in the bearing; the linear latch or .
- the asymmetrical latching also leads to strong abrasion in places and thus inevitably changed triggering forces.
- the object of the invention is to design the latching point in such a way that asymmetrical supports are avoided.
- This object is achieved in that the support area on the latch lever and / or on the release lever is convex towards the other.
- Another embodiment of the invention can consist in that an edge of an approximately rectangular recess serves as a support area on the release lever that uflage Schemees for forming the A is provided on the ratchet lever a projection on this, the reaching into verklinktem state in the recess and that the edge of the recess against which the projection is pressed is convex.
- a third embodiment can consist in that the projection is also convex towards the edge.
- the advantages achieved with this configuration of the latching point are that the latching is symmetrical and the spherical configuration of at least one of the support edges compensates for the bearing tolerances of both the release lever and the latch lever.
- the release forces are also kept constant and, with a suitable surface treatment, for example by nickel plating or by galvanizing one or the other part, greater surface protection and smaller frictional forces are achieved.
- a ratchet lever 12 which has an extension 14, is mounted fixedly about an axis lo.
- a trigger lever 18 is mounted around a further position 16, said trigger lever also being pressed in the direction of arrow F by means of a spring 20.
- the spring 20 is a helical spring and is supported on the one hand on a projection 24 on the release lever 18 and on the other hand on the stationary stop 22. In the event of a release, the release lever 18 is moved in the opposite direction of the arrow F, whereby - also under the force of a spring - the latch lever is pivoted counterclockwise P and triggers the switching mechanism.
- the latching point itself is new, i. H. the support point or the support point between the release lever 18 and the ratchet lever 12.
- the release lever 18 has a rectangular window 26 into which the projection 14 of the ratchet lever 12 engages.
- This projection 14 is convexly curved toward the lower edge 28, which serves as a supporting edge, so that the load or the force transmission is generated only by the curved line on the projection 14.
Landscapes
- Breakers (AREA)
- Mechanisms For Operating Contacts (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
- Switches With Compound Operations (AREA)
Abstract
Description
Die Erfindung betrifft ein Schaltwerk für einen elektrischen Installationsschalter, insbesondere für einen Fehlerstromschutzschalter, mit einer Verklinkungsstelle, an der ein Auflagebereich an einem Auflösehebel federnd an einen Auflagebereich an einem Klinkenhebel gedrückt ist.The invention relates to a switching mechanism for an electric nstallationsschalter I, especially for a residual-current circuit breaker, having a latching point, at which a support portion is pressed against an opening lever resiliently against a contact area on a ratchet lever.
Der Verklinkungsstelle im Schaltwerk eines elektrischen Schalters ist bis jetzt noch keine besondere Aufmerksamkeit gewidmet worden. Im allgemeinen liegt der Auslöschebel gegen die Auslöseklinke oder umgekehrt an, wobei der Auslösehebel oder die Auslöseklinke mittels einer Feder gegen die jeweils andere Klinke gedrückt wird; wird die Verklinkungsstelle entklinkt, wird das Schaltwerk ausgelöst und der betreffende Schalter kann auslösen.No special attention has yet been paid to the latching point in the switching mechanism of an electrical switch. In general, the trigger lever bears against the trigger pawl or vice versa, the trigger lever or the trigger pawl being pressed against the other pawl by means of a spring; If the latching point is released, the switching mechanism is triggered and the switch in question can trigger.
Im allgemeinen sind die aufeinanderliegenden Kanten von Auslösehebel und Klinkenhebel gerade. Dies hat zur Folge daß gewisse Lagertoleranzen zu unsyuntrischen Belastungen bzw. Flächenpressungen führen, was die Verklinkungsstelle ungünstig beeinflußt. Daruberhinaus sind die Entklinkungskräfto bei häufiger Auslösung und/oder unkorrekter Lage der Verklinkungsteile zueinander, z.n. in Folge der Schiefstellung eines Klinkenteils wegen ungünstiger Toleranzen im Lager relativ hoch; die linienförmige Verklinkung bzw. die unsymmetrische Verklinkung führt auch zu stellenweise starkem Abrieb und damit zwangsläufig veränderten Auslösekräften.In general, the edges of the release lever and the ratchet lever are straight. The consequence of this is that certain bearing tolerances lead to unsyuntrical loads or surface pressures, which adversely affects the latching point. In addition, the unleashing force is with frequent triggering and / or incorrect position of the latching parts relative to one another, for example relatively high due to the misalignment of a latching part due to unfavorable tolerances in the bearing; the linear latch or . the asymmetrical latching also leads to strong abrasion in places and thus inevitably changed triggering forces.
Aufgabe der Erfindung ist es, die Verklinkungsstelle so auszubilden, daß unsymmetrische Auflagerungen vermieden werden.The object of the invention is to design the latching point in such a way that asymmetrical supports are avoided.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Auflagebereich am Klinkenhebel und/oder am Auslösehebel konvex zum anderen hin ausgebildet ist.This object is achieved in that the support area on the latch lever and / or on the release lever is convex towards the other.
Eine weitere Ausgestaltung der Erfindung kann darin bestehen, daß als Auflagebereich am Auslösehebel eine Kante einer annähernd rechteckigen Ausnehmung dient, daß zur Bildung des Auflagebereiches an dem Klinkenhebel ein Vorsprung an diesem vorgesehen ist, der in verklinktem Zustand in die Ausnehmung hineingreift
und daß die Kante der Ausnehmung, gegen die der Vorsprung gedrückt ist, konvex ausgebildet ist.Another embodiment of the invention can consist in that an edge of an approximately rectangular recess serves as a support area on the release lever that uflagebereiches for forming the A is provided on the ratchet lever a projection on this, the reaching into verklinktem state in the recess
and that the edge of the recess against which the projection is pressed is convex.
Eine dritte Ausgestaltung kann darin bestehen, daß zusätzlich auch der Vorsprung zur Kante hin konvex ausgebildet ist. Die bei dieser Ausgestaltung der Verklinkungsstelle erzielten Vorteile bestehen- darin, daß die Verklinkung symmetrisch ist und durch die ballige Ausgestaltung zumindest einer der Auflagekanten ein Ausgleich der Lagertoleranzen sowohl des Auslösehebels als auch des Klinkenhebels erreicht wird. Auch werden die Auslösekräfte konstant gehalten und bei geeigneter Oberflächenbehandlung, beispielsweise durch Vernickelung oder durch Verzinkung des einen bzw. anderen Teiles ein größerer Oberflächenschutz sowie kleinere Reibungskräfte erzielt.A third embodiment can consist in that the projection is also convex towards the edge. The advantages achieved with this configuration of the latching point are that the latching is symmetrical and the spherical configuration of at least one of the support edges compensates for the bearing tolerances of both the release lever and the latch lever. The release forces are also kept constant and, with a suitable surface treatment, for example by nickel plating or by galvanizing one or the other part, greater surface protection and smaller frictional forces are achieved.
Anhand der Zeichnung in der zwei Ausgestaltungen der Erfindung dargestellt sind, sollen die Erfindung sowie weitere vorteilhafte Ausgestaltungen und Verbesserungen der Erfindung näher erläutert werden.The invention and further advantageous configurations and improvements of the invention are to be explained in more detail with reference to the drawing in which two configurations of the invention are shown.
Es zeigen:
- Figur 1 eine Seitenansicht auf eine erfindungsgemäße Verklinkungsstelle,
- Figur 2 eine Aufsicht auf eine erfindungsgemäße Verklinkungsstelle in Pfeilrichtung X und
- Figur. 3 eine weitere Aufsicht auf die Anordnung gem. den Figuren 1 und 2,
- Figur 4 eine weitere Ausgestaltung der Erfindung, in einer der Figur 2 ähnlichen Darstellung.
- FIG. 1 shows a side view of a latching point according to the invention,
- Figure 2 is a plan view of a latching point according to the invention in the direction of the arrow X and
- Figure. 3 a further supervision of the arrangement according to Figures 1 and 2,
- Figure 4 shows a further embodiment of the invention, in a representation similar to Figure 2.
In der Figur 1 ist eine Seitenansicht auf eine Verklinkungsstelle für ein Fehlerstromschut7schalterschaltwerk dargestellt; ein derartiges Schaltwerk kann beispielsweise aus der Patentanmeldung p 30 07 244.7 entnommen werden. Ortsfest um eine Achse lo gelagert ist ein Klinkenhebel 12, der einen Fortsatz 14 aufweist. Um eine weitere Lagestelle 16 gelagert ist ein Auslösehebel 18, welcher Auslösehebel ferner mittels einer Feder 20 in Pfeilrichtung F gedrückt ist. Die Feder 20 ist eine Schraubenfeder und stützt sich einerseits an einem Vorsprung 24 am Auslösehebel 18 und zum anderen an dem ortsfesten Anschlag 22 ab. Im Falle einer Auslösung wird der Auslösehebd 18 entgegen der Pfeilrichtung F bewegt, wodurch - ebenfalls unter der Kraft einer Feder- der Klinkenhebel entgegen dem Uhrzeigersinn P verschwenkt wird und den Schaltmechanismus auslöst.1 shows a side view of a latching point for a residual current device 7 switchgear; such a rear derailleur can be found, for example, in patent application p 30 07 244.7. A
Insoweit sind dies alles ansich bekannte Ausgestaltungen. Neu ist die Verklinkungsstelle selbst, d. h. die Auflagestelle bzw. die Abstützungsstelle zwischen dem Auslösehebel 18 und dem Klinkenhebel 12. Der Auslösehebel 18 besitzt ein rechteckiges Fenster 26, in das der Vorsprung 14 des Klinkenhebels 12 eingreift.In this respect, these are all known configurations. The latching point itself is new, i. H. the support point or the support point between the
Dieser Vorsprung 14 ist zur unteren Kante 28 hin, die als Abstützkante dient, konvex gewölbt, so daß die Belastung bzw. die Kraftübertragung lediglich durch die gekrümmte Linie am Vorsprung 14 erzeugt wird.This
In der Figur 4 ist zu erkennen, daß.die Kante 28 zum Vorsprung 14 hin konvex ausgebildet ist, wodurch die gleiche Wirkung wie bei der Anordnung nach der Figur 2 bewirkt wird.In FIG. 4 it can be seen that the
Es besteht selbstverständlich die Möglichkeit, denKlinkenhebel 12 mit dem konvex ausgebildeten Vorsprung 14 mit dem in Figur 4 dargestellten Auslösehebel 18 zu kombinieren, so daß beide aufeinanderliegenden Kanten oder Flächen jeweils konvex aufeinander zuweisen.There is of course the possibility of combining the
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81101338T ATE5788T1 (en) | 1980-03-06 | 1981-02-25 | SWITCHING DEVICE FOR ELECTRICAL INSTALLATION SWITCHGEAR. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19803008533 DE3008533A1 (en) | 1980-03-06 | 1980-03-06 | SWITCHGEAR FOR ELECTRICAL INSTALLATION SWITCHGEAR |
DE3008533 | 1980-03-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0035693A1 true EP0035693A1 (en) | 1981-09-16 |
EP0035693B1 EP0035693B1 (en) | 1984-01-04 |
Family
ID=6096394
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81101338A Expired EP0035693B1 (en) | 1980-03-06 | 1981-02-25 | Switching mechanism for electrical installation switch gear |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0035693B1 (en) |
AT (1) | ATE5788T1 (en) |
DE (1) | DE3008533A1 (en) |
ES (1) | ES256534Y (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0923102A2 (en) * | 1997-12-10 | 1999-06-16 | Siemens Energy & Automation, Inc. | Intermediate latch for a molded case circuit breaker |
FR2816105A1 (en) * | 2000-10-25 | 2002-05-03 | Fuji Electric Co Ltd | CUTTING MECHANISM FOR CIRCUIT BREAKER |
EP3249674A1 (en) * | 2016-05-24 | 2017-11-29 | Siemens Aktiengesellschaft | Latching device and release mechanism |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3246098A (en) * | 1964-03-13 | 1966-04-12 | Square D Co | Molded-case electric circuit breaker |
EP0003967A1 (en) * | 1978-03-07 | 1979-09-19 | Siemens Aktiengesellschaft | Release gear device for electric power circuit breakers |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE495197C (en) * | 1927-11-26 | 1931-04-25 | Voigt & Haeffner Akt Ges | Overcurrent switch with trip-free release |
DE1588378B2 (en) * | 1967-10-17 | 1971-09-02 | Klockner Moeller Elektnzitats GmbH, 5300 Bonn | LOCKING DEVICE FOR ELECTRIC SELF-SWITCHING |
DE1989915U (en) * | 1968-03-02 | 1968-07-25 | Siemens Ag | ELECTRIC SWITCH WITH LOCKABLE SWITCHING MECHANISM. |
US3796980A (en) * | 1972-07-31 | 1974-03-12 | Westinghouse Electric Corp | Disposable circuit breaker |
US3808567A (en) * | 1973-01-30 | 1974-04-30 | A Maier | Circuit breaker with improved resettable latch and trip means |
DE2802925C2 (en) * | 1978-01-24 | 1980-03-20 | Felten & Guilleaume Carlswerk Ag, 5000 Koeln | Switching mechanism for miniature circuit breakers in flat design |
DE2851817C3 (en) * | 1978-04-19 | 1984-10-18 | Siemens AG, 1000 Berlin und 8000 München | Low-voltage circuit breaker with a main pawl, an intermediate pawl and a locking element |
DE3007244A1 (en) * | 1980-02-27 | 1981-09-03 | Brown, Boveri & Cie Ag, 6800 Mannheim | REAR DERAILLEUR FOR AN INSTALLATION SWITCH |
-
1980
- 1980-03-06 DE DE19803008533 patent/DE3008533A1/en active Granted
-
1981
- 1981-02-25 EP EP81101338A patent/EP0035693B1/en not_active Expired
- 1981-02-25 AT AT81101338T patent/ATE5788T1/en active
- 1981-03-02 ES ES1981256534U patent/ES256534Y/en not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3246098A (en) * | 1964-03-13 | 1966-04-12 | Square D Co | Molded-case electric circuit breaker |
EP0003967A1 (en) * | 1978-03-07 | 1979-09-19 | Siemens Aktiengesellschaft | Release gear device for electric power circuit breakers |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0923102A2 (en) * | 1997-12-10 | 1999-06-16 | Siemens Energy & Automation, Inc. | Intermediate latch for a molded case circuit breaker |
EP0923102A3 (en) * | 1997-12-10 | 2000-10-04 | Siemens Energy & Automation, Inc. | Intermediate latch for a molded case circuit breaker |
FR2816105A1 (en) * | 2000-10-25 | 2002-05-03 | Fuji Electric Co Ltd | CUTTING MECHANISM FOR CIRCUIT BREAKER |
EP3249674A1 (en) * | 2016-05-24 | 2017-11-29 | Siemens Aktiengesellschaft | Latching device and release mechanism |
CN107424880A (en) * | 2016-05-24 | 2017-12-01 | 西门子公司 | Overload release |
US10347454B2 (en) | 2016-05-24 | 2019-07-09 | Siemens Aktiengesellschaft | Overload release |
Also Published As
Publication number | Publication date |
---|---|
ES256534U (en) | 1981-07-01 |
EP0035693B1 (en) | 1984-01-04 |
ATE5788T1 (en) | 1984-01-15 |
DE3008533C2 (en) | 1989-05-11 |
DE3008533A1 (en) | 1981-09-17 |
ES256534Y (en) | 1981-12-16 |
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