EP0455317B1 - Mechanical interlocking device for contactors comprising a slider - Google Patents
Mechanical interlocking device for contactors comprising a slider Download PDFInfo
- Publication number
- EP0455317B1 EP0455317B1 EP91250116A EP91250116A EP0455317B1 EP 0455317 B1 EP0455317 B1 EP 0455317B1 EP 91250116 A EP91250116 A EP 91250116A EP 91250116 A EP91250116 A EP 91250116A EP 0455317 B1 EP0455317 B1 EP 0455317B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- slider
- contactors
- interlocking device
- slide
- spacer block
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/18—Movable parts of magnetic circuits, e.g. armature
- H01H50/32—Latching movable parts mechanically
- H01H50/323—Latching movable parts mechanically for interlocking two or more relays
Definitions
- the invention relates to a mechanical locking device for avoiding the simultaneous activation of two electromagnetically actuated contactors with a slide which can be displaced in its off position by the switching-on movement of a drive element of the one contactor approximately at right angles to the direction of the switching movement of the contactors in order to block the drive element of the other contactor.
- a locking device of this type is known from DE-A-21 14 509. It comprises two slides arranged in parallel and displaceable relative to each other, one slider being actuated by the drive device of one contactor and thereby blocking the actuating device of the other contactor. A compression spring inserted between the slides biases the slides against each other against the direction of actuation. Furthermore, the slides are arranged in a hood, into which extensions of the drive device of the contactors which cooperate with the slides protrude and cover the two adjacently mounted contactors.
- the object of the invention is to create a simplified embodiment of a locking device which is particularly suitable for retrofitting and, if necessary, attaching to vacuum contactors with hinged anchors.
- the effort both for the production of the locking device and for its assembly on the shooters should be as low as possible.
- This task is based on a locking device of the type mentioned solved in that the slide has an inclined surface at its end faces and that an insertable between the contactors and their distance determining spacer is provided, which is dimensioned such a distance between the two contactors that the distance between the drive members is less than is the length of the slider, with a restoring element prestressing the slider in the idle state into a central position in which each of the inclined surfaces partially engages under the associated drive element.
- only one slide is thus required and the dimensional relationships required for the operation of the device are inevitably brought about by mounting the device between the shooters.
- the spacer can also form a guideway for the slide and have an abutment for the restoring element. In this way, the locking device forms a coherent unit that is easy to assemble.
- a guidance of the slide can be achieved with little effort in that the slide is slidably guided with a projection in an opening in the spacer and that bow-like legs spanning the slide are provided to maintain the engagement of the projection with the opening.
- a leaf spring can be used as the restoring element, which is attached at one end to a leg pressed out of the spacer and which engages with its other end in an incision in the slide.
- FIG. 1 shows a simplified perspective illustration of a locking device designed as a module for two electromagnetically actuated contactors.
- the locking device shown in FIG. 1 and designated as a whole by 1 has a spacer 2, which is designed at the same time as a carrier and guide element for a slide 3.
- the spacer 2 is suitably made of sheet metal as a one-piece stamped and bent part.
- Two spaced-apart legs 4 and 5, each with a fastening opening 6 and 7, are used to determine the distance between two vacuum contactors to be locked against one another and 11 and a flat end part 12 of the spacer 2 is guided.
- the slide 3 In the rest position shown, the slide 3 is biased by a leaf spring 16, one end of which is pushed out of the spacer 2 at an abutment serving as an abutment Tab 17 is attached. The other end of the leaf spring 16 engages in an incision 20 in the slide 3, whereby the slide 3 is held in a middle rest position.
- the locking device 1 is shown together with adjacent, schematically illustrated parts of two vacuum contactors.
- the legs 4 and 5 of the spacer 2 determine the distance from the shooters 21 and 22, each of which has a drive member 23 and 24, respectively.
- edges 25 and 26 of the drive elements 23 and 24 each face an inclined surface 27 and 30, which are located on opposite end faces of the slide 3. If one of the contactors is excited, the corresponding drive member 23 or 24 executes a movement directed towards the end part 12. As a result, a force is exerted on the slide 3 via the corresponding edge 25 or 26 due to the wedge effect of the inclined surfaces 27 or 30, as a result of which the slide 3 is displaced to the left or right against the force of the leaf spring 16.
- the slide 3 passes under the drive member 23 or 24 of the other contactor, so that the latter is now blocked.
- the slide 3 can not be pushed back even with a strong force, because the force only leads to a compressive stress on the material of the slide 3. In this way, reliable locking is ensured even if the pulling force of the contactor that is switched on is reduced by an economy circuit, but the other contactor is operating with full pulling force.
Description
Die Erfindung betrifft eine mechanische Verriegelungseinrichtung zur Vermeidung der gleichzeitigen Einschaltung von zwei elektromagnetisch betätigbaren Schützen mit einem Schieber, der durch die Einschaltbewegung eines Antriebsorganes des einen Schützes etwa rechtwinklig zur Richtung der Schaltbewegung der Schütze zwecks Blockierung des Antriebsorganes des anderen Schützes in seiner Ausschaltstellung verschiebbar ist.The invention relates to a mechanical locking device for avoiding the simultaneous activation of two electromagnetically actuated contactors with a slide which can be displaced in its off position by the switching-on movement of a drive element of the one contactor approximately at right angles to the direction of the switching movement of the contactors in order to block the drive element of the other contactor.
Eine Verriegelungseinrichtung dieser Art ist durch die DE-A-21 14 509 bekannt geworden. Sie umfaßt zwei parallel angeordnete und relativ zueinander verschiebbare Schieber, wobei jeweils ein Schieber von der Antriebsvorrichtung des einen Schützes betätigt und hierdurch die Betätigungsvorrichtung des anderen Schützes blockiert wird. Eine zwischen die Schieber eingelegte Druckfeder spannt die Schieber entgegen der Betätigungsrichtung gegeneinander vor. Ferner sind die Schieber in einer Haube angeordnet, in welche mit den Schiebern zusammenwirkende Fortsätze der Antriebsvorrichtung der Schütze hineinragen und die zwei benachbart montierte Schütze überdeckt.A locking device of this type is known from DE-A-21 14 509. It comprises two slides arranged in parallel and displaceable relative to each other, one slider being actuated by the drive device of one contactor and thereby blocking the actuating device of the other contactor. A compression spring inserted between the slides biases the slides against each other against the direction of actuation. Furthermore, the slides are arranged in a hood, into which extensions of the drive device of the contactors which cooperate with the slides protrude and cover the two adjacently mounted contactors.
Der Erfindung liegt hiervon ausgehend die Aufgabe zugrunde, ein vereinfachte Ausführung einer Verriegelungsvorrichtung zu schaffen, die sich insbesondere zur nachträglichen und bedarfsweisen Anbringung an Vakuumschützen mit Klappanker eignet. Der Aufwand sowohl für die Herstellung der Verriegelungsvorrichtung als auch für ihre Montage an den Schützen soll so gering wie möglich sein.Proceeding from this, the object of the invention is to create a simplified embodiment of a locking device which is particularly suitable for retrofitting and, if necessary, attaching to vacuum contactors with hinged anchors. The effort both for the production of the locking device and for its assembly on the shooters should be as low as possible.
Diese Aufgabe wird ausgehend von einer Verriegelungseinrichtung der eingangs genannten Art dadurch gelöst, daß der Schieber an seinen Stirnseiten je eine Schrägfläche besitzt und daß ein zwischen die Schütze einfügbares und deren Abstand bestimmendes Distanzstück vorgesehen ist, welches einem solchen Abstand der beiden Schütze entsprechend bemessen ist, daß der Abstand der Antriebsorgane kleiner als die Länge des Schiebers ist, wobei ein Rückstellorgan den Schieber im Ruhezustand in eine Mittelstellung vorspannt, in der jede der Schrägflächen zum Teil unter das zugeordnete Antriebsorgan greift. Im Unterschied zu der erwähnten bekannten Verriegelungseinrichtung wird somit nur ein Schieber benötigt und die für die Wirkungsweise der Einrichtung erforderlichen Maßverhältnisse werden zwangsläufig durch die Montage der Einrichtung zwischen den Schützen herbeigeführt. Dadurch, daß im Ruhezustand jedes der Antriebsorgane mit einer der Schrägflächen in Eingriff steht, beginnt unmittelbar bei der Betätigung eines der Schütze die Verschiebung des Schiebers. Dabei gelangt ein an die Schrägfläche anschließender ebener Teil des Schiebers unter das Antriebsorgan des anderen Schützes und blockiert dieses.This task is based on a locking device of the type mentioned solved in that the slide has an inclined surface at its end faces and that an insertable between the contactors and their distance determining spacer is provided, which is dimensioned such a distance between the two contactors that the distance between the drive members is less than is the length of the slider, with a restoring element prestressing the slider in the idle state into a central position in which each of the inclined surfaces partially engages under the associated drive element. In contrast to the known locking device mentioned, only one slide is thus required and the dimensional relationships required for the operation of the device are inevitably brought about by mounting the device between the shooters. Characterized in that each of the drive members is in engagement with one of the inclined surfaces in the idle state, the displacement of the slide begins immediately when one of the contactors is actuated. A flat part of the slide adjoining the inclined surface gets under the drive element of the other contactor and blocks it.
Das Distanzstück kann zugleich eine Führungsbahn für den Schieber bilden und ein Widerlager für das Rückstellorgan besitzen. Auf diese Weise bildet die Verriegelungseinrichtung eine zusammenhängende Einheit, die leicht montierbar ist.The spacer can also form a guideway for the slide and have an abutment for the restoring element. In this way, the locking device forms a coherent unit that is easy to assemble.
Eine Führung des Schiebers ist mit geringem Aufwand dadurch zu erreichen, daß der Schieber mit einem Vorsprung in einer Durchbrechung des Distanzstückes verschiebbar geführt ist und daß den Schieber übergreifende bügelartige Schenkel zur Aufrechterhaltung des Eingriffes des Vorsprunges mit der Durchbrechung vorgesehen sind. Ferner kann als Rückstellorgan eine Blattfeder dienen, die mit ihrem einen Ende an einem aus dem Distanzstück herausgedrückten Schenkel befestigt ist und die mit ihrem anderen Ende in einen Einschnitt des Schiebers eingreift. Diese Gestaltung erlaubt es, das Distanzstück mit allen für die Führung, Halterung und Rückstellung des Schiebers dienenden Merkmalen in einem einzigen Stanz-Biegeteil zusammenzufassen.A guidance of the slide can be achieved with little effort in that the slide is slidably guided with a projection in an opening in the spacer and that bow-like legs spanning the slide are provided to maintain the engagement of the projection with the opening. Furthermore, a leaf spring can be used as the restoring element, which is attached at one end to a leg pressed out of the spacer and which engages with its other end in an incision in the slide. This design allows the spacer with all for guiding, holding and resetting the slider serving features summarized in a single stamped and bent part.
Die Erfindung wird im folgenden anhand der Figuren näher erläutert.The invention is explained in more detail below with reference to the figures.
Die Figur 1 zeigt in einer vereinfachten perspektivischen Darstellung eine als Baustein ausgebildete Verriegelungseinrichtung für zwei elektromagnetisch betätigte Schütze.FIG. 1 shows a simplified perspective illustration of a locking device designed as a module for two electromagnetically actuated contactors.
In der Figur 2 ist die Verriegelungseinrichtung gemäß der Figur 1 in einer Stirnansicht mit angrenzenden Teilen der gegeneinander zu verriegelnden Schütze dargestellt.FIG. 2 shows the locking device according to FIG. 1 in a front view with adjacent parts of the contactors to be locked against one another.
Die in der Figur 1 gezeigte und als Ganzes mit 1 bezeichnete Verriegelungseinrichtung weist ein Distanzstück 2 auf, das zugleich als Träger und Führungsorgan für einen Schieber 3 ausgebildet ist. Das Distanzstück 2 ist zweckmäßig aus Blech als einstückiges Stanz-Biegeteil hergestellt. Zur Festlegung des Abstandes von zwei gegeneinander zu verriegelnden Vakuumschützen dienen zwei rechtwinklig abgekantete Schenkel 4 und 5 mit je einer Befestigungsöffnung 6 bzw. 7. Zwei bügelartige Schenkel 10 und 11 des Distanzstückes 2 übergreifen den Schieber 3 derart, daß der Schieber zwischen den bügelartigen Schenkeln 10 und 11 sowie einem ebenen Endteil 12 des Distanzstückes 2 geführt ist.The locking device shown in FIG. 1 and designated as a whole by 1 has a
In der Figur 2 ist der Endteil 12 geschnitten dargestellt. Es ist zu erkennen, daß der Schieber 3 an seiner Unterseite einen Ansatz 13 trägt, der durch eine Durchbrechung 14 des Endteiles 12 hindurchragt. Hierdurch ist die Verschiebbarkeit des Schiebers 3 auf die Richtung des Doppelpfeiles 15 beschränkt.The
In die dargestellte Ruhelage wird der Schieber 3 durch eine Blattfeder 16 vorgespannt, deren eines Ende an einem als Widerlager dienenden, aus dem Distanzstück 2 herausgedrückten Lappen 17 befestigt ist. Das andere Ende der Blattfeder 16 greift in einen Einschnitt 20 des Schiebers 3 ein, wodurch der Schieber 3 in einer mittleren Ruhelage gehalten wird.In the rest position shown, the
In der Figur 2 ist die Verriegelungseinrichtung 1 zusammen mit angrenzenden, schematisch dargestellen Teilen von zwei Vakuumschützen gezeigt. Wir man erkennt, bestimmen die Schenkel 4 und 5 des Distanzstückes 2 den Abstand von Schützen 21 und 22, die jeweils ein Antriebsorgan 23 bzw. 24 aufweisen. In der gezeigten Ruhelage des Schiebers 3 stehen Kanten 25 bzw. 26 der Antriebsorgane 23 bzw. 24 jeweils einer Schrägfläche 27 bzw. 30 gegenüber, die sich an gegenüberliegenden Stirnseiten des Schiebers 3 befinden. Wird eines der Schütze erregt, so führt das entsprechende Antriebsorgan 23 oder 24 eine auf den Endteil 12 gerichtete Bewegung aus. Hierdurch wird über die entsprechende Kante 25 oder 26 eine Kraft auf den Schieber 3 aufgrund der Keilwirkung der Schrägflächen 27 oder 30 ausgeübt, wodurch der Schieber 3 entgegen der Kraftwirkung der Blattfeder 16 nach links oder rechts verschoben wird. Dabei gelangt der Schieber 3 mit seiner an die betreffende Schrägfläche 27 oder 30 anschließenden ebenen Oberseite 31 unter das Antriebsorgan 23 oder 24 des anderen Schützes, so daß dieses nun blockiert ist. Der Schieber 3 kann auch bei starker Kraftwirkung nicht zurückgedrängt werden, weil die Kraft lediglich zu einer Druckbeanspruchung des Werkstoffes des Schiebers 3 führt. Auf diese Weise ist eine zuverlässige Verriegelung auch dann gewährleistet, wenn die Zugkraft des jeweils eingeschalteten Schützes durch eine Sparschaltung reduziert ist, das andere Schhütz jedoch mit voller Zugkraft wirkt.In Figure 2, the
Kehrt nach Abschaltung das Antriebsorgan des betreffenden Schützes in seine in der Figur 2 gezeigte Ruhelage zurück, so wird auch der Schieber 3 durch die Blattfeder 16 in seine Ruhelage zurückgeführt. Damit ist die Verriegelungseinrichtung 2 für einen weiteren Verriegelungsvorgang bereit.If after switching off the drive member of the contactor concerned returns to its rest position shown in FIG. 2, the
Claims (4)
- A mechanical interlocking device for avoiding the simultaneous connection of two electromagnetically movable contactors (21, 22) with a slider (3) which is displaceable in its open position, approximately at right angles to the direction of the switching movement of the contactors (21, 22), by a switching movement of an actuation element (23, 24) of one of the contactors (21, 22) for the purpose of blocking the actuation element (23, 24) of the other contactor (21, 22), characterized in that the slider (3) comprises a slanting surface (27, 30) at each of its end faces and in that an insertable spacer block (2) is provided between the contactors (21, 22) which determines the distance between said contactors and which is proportioned according to such a distance of the two contactors (21, 22), in that the distance of their actuating elements (23, 24) is smaller than the length of the slider (3), whereby a resetting element (16) pretensions the slider (3) in the rest position into a central position in which each of the slanting surfaces (27, 30) partially makes contact underneath the allocated actuation element (23, 24).
- An interlocking device according to claim 1, characterized in that the spacer block (2) simultaneously forms a guideway for the slider (3) and comprises an abutment (17) for the resetting element (16).
- An interlocking device according to claim 2, characterized in that the slider (3) is displaceably guided with a projection (13) in an opening (14) of the spacer block (2) and in that curve-shaped limbs (10, 11) which cover the slider (3) are provided to maintain the contact of the projection (13) with the opening (14).
- An interlocking device according to one of the preceding claims, characterized in that a leaf spring (16) is used as resetting element, which is secured at one of its ends to a tab (17) pressed out of the spacer block (2) and engages a notch (20) of the slider (3) with its other end.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9005102U | 1990-05-02 | ||
| DE9005102U DE9005102U1 (en) | 1990-05-02 | 1990-05-02 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0455317A2 EP0455317A2 (en) | 1991-11-06 |
| EP0455317A3 EP0455317A3 (en) | 1992-05-27 |
| EP0455317B1 true EP0455317B1 (en) | 1994-11-30 |
Family
ID=6853519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91250116A Expired - Lifetime EP0455317B1 (en) | 1990-05-02 | 1991-04-26 | Mechanical interlocking device for contactors comprising a slider |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0455317B1 (en) |
| DE (2) | DE9005102U1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4142179C2 (en) * | 1991-12-20 | 1996-07-25 | Licentia Gmbh | Mechanical locking device |
| DE29706465U1 (en) * | 1997-04-11 | 1997-07-10 | Berker Geb | Blind switch |
| BE1011856A3 (en) * | 1997-04-11 | 2000-02-01 | Berker Geb | Blind switch |
| DE102004033097B4 (en) * | 2004-07-08 | 2021-05-12 | Heinrich Kopp Ag | Installation switch |
| CN101017963B (en) * | 2006-12-29 | 2012-05-02 | 浙江正泰电器股份有限公司 | A mechanical interlocked contactor device |
| DE102012006522A1 (en) * | 2012-03-30 | 2013-10-02 | Abb Ag | Electrical installation switch with mechanical lock |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2114509A1 (en) * | 1971-03-25 | 1972-10-05 | Metzenauer & Jung Gmbh | Arrangement made up of two contactors with mechanical locking device |
| FR2454171A1 (en) * | 1979-04-13 | 1980-11-07 | Telemecanique Electrique | LOCKING DEVICE FOR TWO PUSH BUTTONS |
| US4409575A (en) * | 1980-08-07 | 1983-10-11 | Tokyo Shibaura Denki Kabushiki Kaisha | Electromagnetic contactor |
| US4739672A (en) * | 1987-01-15 | 1988-04-26 | Siemens Energy & Automation, Inc. | Mechanical interlock for a vacuum contactor |
-
1990
- 1990-05-02 DE DE9005102U patent/DE9005102U1/de not_active Expired - Lifetime
-
1991
- 1991-04-26 EP EP91250116A patent/EP0455317B1/en not_active Expired - Lifetime
- 1991-04-26 DE DE59103619T patent/DE59103619D1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0455317A3 (en) | 1992-05-27 |
| DE59103619D1 (en) | 1995-01-12 |
| DE9005102U1 (en) | 1991-09-05 |
| EP0455317A2 (en) | 1991-11-06 |
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