EP3128531A1 - Device for actuating an operating handle and electrical switch - Google Patents

Device for actuating an operating handle and electrical switch Download PDF

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Publication number
EP3128531A1
EP3128531A1 EP16170282.4A EP16170282A EP3128531A1 EP 3128531 A1 EP3128531 A1 EP 3128531A1 EP 16170282 A EP16170282 A EP 16170282A EP 3128531 A1 EP3128531 A1 EP 3128531A1
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EP
European Patent Office
Prior art keywords
arm
handle
bridge
electrical switch
spring
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
Application number
EP16170282.4A
Other languages
German (de)
French (fr)
Other versions
EP3128531B1 (en
Inventor
Pavel Danielis
Zdenek Honza
Tomas Horak
Johannes Welzl
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Siemens AG
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Siemens AG
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Publication date
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Publication of EP3128531A1 publication Critical patent/EP3128531A1/en
Application granted granted Critical
Publication of EP3128531B1 publication Critical patent/EP3128531B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • 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
    • H01H71/66—Power reset mechanisms
    • H01H71/70—Power reset mechanisms actuated by electric motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/36—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/20—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/20—Interlocking, locking, or latching mechanisms

Definitions

  • the invention relates to a device for actuating a handle of an electrical switch with electrical contacts and to an electrical switch with such a device.
  • Electrical switches in particular electrical circuit breakers, are typically connected by a handle.
  • the handle has at least one "OFF" and one "ON” position.
  • the handle is operated by a surgeon.
  • motor drives are used, which can be placed on the electrical switch and operate the handle.
  • motor drives which are mounted on the front side directly above the handle or which are mounted on the side of the electrical switch and actuate the handle with one arm.
  • the electrical contacts of a switch are opened or closed. Due to an overcurrent situation, the electrical contacts of a switch may be fused, so that the switch can not be brought into the "OFF" position. With a motor drive, in such a situation there is a risk that the command will cause the electrical switch to be turned “off” to damage the mechanism of the motor drive or the electric switch.
  • the invention is therefore based on the object to provide an alternative device that allows a particularly safe handling by an operator of an electrical switch with fused contacts.
  • the inventive device for actuating a handle of an electrical switch with electrical contacts comprises an arm for actuating the handle of the electrical switch, which is in operative connection with a mechanical bridge, which can perform a linear movement along a fixed axis, wherein the bridge in two parts formed with a first part and a second part and these two parts are movable along the fixed axis, the first part of the bridge is in operative connection with the arm and the second part is held by a spring on the first part, and wherein the second part the bridge is driven by a mechanism along the fixed axis.
  • An advantage of the device according to the invention is that in a blockage of the arm for actuating the handle - for example by fused contacts - is prevented due to the spring-closed connection between the first part and the second part of the bridge that this arm is damaged.
  • the spring is formed with a spring constant, which allows a greater force of the counterforce of the electric switch when switching but does not exceed the maximum permissible switching force.
  • the first part when switching through the arm driven by the bridge, the first part is separated from the second part against the spring force and the arm is no longer moved in a first direction.
  • the spring is designed as a compression spring and energy is stored in the compressed compression spring when the counterforce of the electrical switch when switching through the arm driven by the bridge is exceeded.
  • the spring may be formed as a tension spring and energy is stored in the stretched tension spring when the counterforce of the electric switch when switching through the arm driven by the bridge is exceeded.
  • the energy stored in the spring moves the arms in a second direction opposite to the first direction. This ensures that, for example, when fused contacts the handle is moved to the "ON" position and thus a surgeon does not read a wrong status of the electrical switch on the handle.
  • the movement of the arm in the first direction moves the handle of the electric switch in the direction of the "OFF" position and the movement of the arm in the second direction, the handle of the electrical switch in the direction of the "ON" position.
  • the mechanism comprises a driven wheel with a pin, wherein the pin with a highlight on the second part of the bridge cooperates to drive the bridge.
  • the object of the invention is also achieved by an electrical switch with a handle for switching the electric current and a device according to the invention, wherein the arm of the device surrounds the handle so that the movement of the arm in the first direction, the handle in the direction of "OFF" Position of the electric switch moves and the movement of the arm in the second direction moves the handle in the direction of the "ON" position.
  • FIG. 1 a device 100 for actuating a handle 910 of an electrical switch 900 with electrical contacts 920, 921 is shown.
  • the device 100 comprises an arm 130 for actuating the handle 910 of the electrical switch 900.
  • FIG. 6 shown in more detail, which is a switch 900 with electrical contacts 920, 921 and a handle 910.
  • the electrical switch 900 can be brought into the "ON" position or "OFF" position.
  • the handle 910 will be in the "ON" position and would be translated to the left to the "OFF” position.
  • the handle 910 is actuated by the device 100 in that the arm 130 encloses the handle 910 and the arm 130 makes a movement to the right or left.
  • the arm 130 has an opening 131 into which the handle 910 protrudes.
  • the arm 130 is corresponding to the FIG. 6 in operative connection with a mechanical bridge 200 capable of linear motion along a fixed axis 500.
  • the bridge 200 is formed in two parts with a first part 210 and a second part 220.
  • the first part 210 and the second part 220 are thus also movable along the fixed axis 500.
  • the first part 210 of the bridge 200 is in operative connection with the arm 130 FIG. 1 the arm 130 is mechanically rigidly attached to the first part 201 of the bridge 200.
  • the first part 210 is connected to the second part 220 of the bridge 200 such that a spring 600 holds the second part 220 on the first part 210.
  • the spring 600 according to the FIG. 1 is a compression spring, the second part 210 according to the figure 1 pulls to the right and thus causes the first part 210 and the second part 220 together.
  • the apparatus 100 includes a mechanism that drives the second portion 220 of the bridge 200 along the fixed axis 500.
  • this mechanism includes a driven wheel 800 with a pin 810, the pin 810 cooperating with a projection 221 on the second part 220 of the bridge 200 to drive the bridge 200.
  • the emphasis 221 protrudes according to the FIG. 1 at the lower part of the second part 220 of the bridge 200 out, so that upon rotation of the driven wheel 800 of the pin 810 according to the FIG. 1 the bridge 200 can slide in a first direction 510.
  • the spring constant of the spring 600 is designed such that a force greater than the counterforce of the electrical switch 900 is applied when switching by the spring 600. This means that, for example, not fused contacts 920, 921 in the normal and error-free switching operation, the spring constant is selected so that the first part 210 and the second part 220 of the bridge 200 are held together by the spring 600. At higher forces than the counter-force of the electric switch 900 during switching, such as occur in fused electrical contacts 920, 921, the spring constant is designed so that the maximum permissible switching force is not exceeded. That is, when fused contacts 920, 921, the first part 210 separates from the second part 220 of the bridge 200th
  • FIG. 2 shows that the first part 210 from the second part 220 of the bridge 200 are separated.
  • fused contacts 920, 921 cause the handle 910 can not be completely transferred to the "OFF" position due to the fused contacts 920, 921.
  • the second part 210 is further away from the first part 210 of the bridge 200 than in the illustration of FIG. 2 , Additional energy was stored in the spring 600, which was further compressed as a compression spring.
  • FIG. 4A also shows the bridge 200 with first part 210 and second part 220, which are separated due to the blocking of the contacts 920, 921, for example, because of merging.
  • FIG. 4B 11 shows a view of the arm 130, which can actuate a handle 910 of an electrical switch 900, and also the bridge 200 with a separate first part 210 and a second part 220.
  • FIG. 5 As shown, the energy stored in the compression spring 600 has been released and the bridge 200 has been slid in the second direction 520 opposite the first direction 510 along the fixed axis 500.
  • the pin 810 no longer cooperates with the highlighting 221 on the second part 220 of the bridge 200, since the pin 810 due to its circular movement of the driven wheel 800 has moved away from the bridge 200 so far that no interaction is possible.
  • the energy in the compressed compression spring 600 was so great that the arm 130 returned the handle 910 to its original position. Typically, this is the "on” position, indicating to a surgeon that the device 100 could not translate the electrical switch 900 to the "off” position.
  • the position of the handle 910 is in accordance with the status of the contacts 920, 921, which can not be separated due to fusion. An operator knows that thus the electrical switch 900 has a malfunction and can fix this targeted.
  • the device 100 may also have a tension spring instead of a compression spring, in which case the energy of the driven arm 130 is stored in the extension of the tension spring.
  • the device 100 for actuating a handle 910 of an electrical switch 900 prevents excessive forces from being exerted on the handle 910 by the motor drive, so that the switching mechanism of the electrical switch 900 would be damaged.
  • the device 100 ensures that the position of the handle 910 corresponds to the actual physical status of the contacts 920, 921.
  • device 100 prevents fused contacts 920, 921 from damaging the motor drive.
  • the arm 130 which at a side mounting of the device 100 on the switch 510 have a certain length, thus also has a certain leverage, so that it can be deformed or break.
  • the condition according to the FIG. 5 clearly signals to a surgeon that there is a fault in the electrical switch 900.
  • this error can be queried by a microswitch, so that it is displayed in a remote control that the electrical switch 900 has a malfunction.

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  • Surgical Instruments (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

Es wird eine Vorrichtung zur Betätigung einer Handhabe eines elektrischen Schalters mit elektrischen Kontakten offenbart. Die Vorrichtung umfasst einen Arm zur Betätigung der Handhabe des elektrischen Schalters, der in Wirkverbindung mit einer mechanischen Brücke steht, die eine Linearbewegung entlang einer festen Achse ausführen kann, wobei die Brücke zweiteilig mit einem ersten Teil und einem zweiten Teil ausgebildet ist, und diese beiden Teile entlang der festen Achse beweglich sind, der erste Teil der Brücke in Wirkverbindung mit dem Arm steht und der zweite Teil von einer Feder am ersten Teil gehalten wird, und wobei der zweite Teil der Brücke mit einem Mechanismus entlang der festen Achse angetrieben wird.A device for actuating a handle of an electrical switch with electrical contacts is disclosed. The device comprises an arm for operating the handle of the electrical switch, which is in operative connection with a mechanical bridge, which can perform a linear movement along a fixed axis, wherein the bridge is formed in two parts with a first part and a second part, and these two Parts are movable along the fixed axis, the first part of the bridge is in operative connection with the arm and the second part is held by a spring on the first part, and wherein the second part of the bridge is driven by a mechanism along the fixed axis.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur Betätigung einer Handhabe eines elektrischen Schalters mit elektrischen Kontakten sowie auf einen elektrischen Schalter mit solch einer Vorrichtung.The invention relates to a device for actuating a handle of an electrical switch with electrical contacts and to an electrical switch with such a device.

Elektrische Schalter, insbesondere elektrische Leistungsschalter, werden typischerweise mit einer Handhabe geschaltet. Die Handhabe hat dabei mindestens eine "AUS"- und eine "EIN"-Stellung. Typischerweise wird die Handhabe von einem Operateur bedient. Zur Fernbedienung einer Handhabe eines solchen elektrischen Schalters werden Motorantriebe verwendet, die auf den elektrischen Schalter aufgesetzt werden können und die Handhabe betätigen können. Es wird unterschieden zwischen Motorantrieben, die an der Frontseite direkt über der Handhabe montiert werden oder die seitlich am elektrischen Schalter angebaut werden und mit einem Arm die Handhabe betätigen.Electrical switches, in particular electrical circuit breakers, are typically connected by a handle. The handle has at least one "OFF" and one "ON" position. Typically, the handle is operated by a surgeon. For remote control of a handle of such an electrical switch motor drives are used, which can be placed on the electrical switch and operate the handle. A distinction is made between motor drives which are mounted on the front side directly above the handle or which are mounted on the side of the electrical switch and actuate the handle with one arm.

Durch die Betätigung der Handhabe werden die elektrischen Kontakte eines Schalters geöffnet oder geschlossen. Aufgrund einer Überstromsituation können die elektrischen Kontakte eines Schalters verschmolzen sein, so dass der Schalter nicht mehr in die "AUS"-Stellung gebracht werden kann. Bei einem Motorantrieb besteht in so einer Situation die Gefahr, dass das Kommando den elektrischen Schalter in "AUS"-Stellung überzuführen dazu führt, dass der Mechanismus des Motorantriebs oder des elektrischen Schalters beschädigt wird.By actuating the handle, the electrical contacts of a switch are opened or closed. Due to an overcurrent situation, the electrical contacts of a switch may be fused, so that the switch can not be brought into the "OFF" position. With a motor drive, in such a situation there is a risk that the command will cause the electrical switch to be turned "off" to damage the mechanism of the motor drive or the electric switch.

Ebenso besteht die Gefahr, dass der Schalter in einer der "AUS"-Stellung benachbarten Stellung verharrt und somit der Operateur den Eindruck hat, dass der elektrische Schalter ausgeschaltet ist und kein Stromfluss mehr möglich ist. Eine sichere Handhabung des elektrischen Schalters für den Operateur ist in so einer Situation nicht möglich.There is also the danger that the switch remains in a position adjacent to the "OFF" position and thus the surgeon has the impression that the electrical switch is switched off and no current flow is possible. A safe handling of the electrical switch for the surgeon is not possible in such a situation.

Der Erfindung liegt daher die Aufgabe zugrunde, eine alternative Vorrichtung anzugeben, die eine besonders sichere Handhabung durch einen Operateur eines elektrischen Schalters ermöglicht bei verschmolzenen Kontakten.The invention is therefore based on the object to provide an alternative device that allows a particularly safe handling by an operator of an electrical switch with fused contacts.

Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung zur Betätigung einer Handhabe eines elektrischen Schalters mit elektrischen Kontakten gemäß Anspruch 1 gelöst. Vorteilhafte Ausgestaltungen der erfindungsgemäßen Vorrichtung sind in Unteransprüchen angegeben. Die Aufgabe wird ebenfalls durch einen elektrischen Schalter gemäß Anspruch 9 gelöst.This object is achieved by a device for actuating a handle of an electrical switch with electrical contacts according to claim 1. Advantageous embodiments of the device according to the invention are specified in subclaims. The object is also achieved by an electrical switch according to claim 9.

Die erfindungsgemäße Vorrichtung zur Betätigung einer Handhabe eines elektrischen Schalters mit elektrischen Kontakten gemäß Anspruch 1 umfasst einen Arm zur Betätigung der Handhabe des elektrischen Schalters, der in Wirkverbindung mit einer mechanischen Brücke steht, die eine Linearbewegung entlang einer festen Achse ausführen kann, wobei die Brücke zweiteilig mit einem ersten Teil und einem zweiten Teil ausgebildet ist und diese beiden Teile entlang der festen Achse beweglich sind, der erste Teil der Brücke in Wirkverbindung mit dem Arm steht und der zweite Teil von einer Feder am ersten Teil gehalten wird, und wobei der zweite Teil der Brücke mit einem Mechanismus entlang der festen Achse angetrieben wird. Ein Vorteil der erfindungsgemäßen Vorrichtung besteht darin, dass bei einer Blockade des Armes zur Betätigung der Handhabe - beispielsweise durch verschmolzene Kontakte - aufgrund der mit der Feder geschlossenen Verbindung zwischen erstem Teil und zweitem Teil der Brücke verhindert wird, dass dieser Arm beschädigt wird.The inventive device for actuating a handle of an electrical switch with electrical contacts according to claim 1 comprises an arm for actuating the handle of the electrical switch, which is in operative connection with a mechanical bridge, which can perform a linear movement along a fixed axis, wherein the bridge in two parts formed with a first part and a second part and these two parts are movable along the fixed axis, the first part of the bridge is in operative connection with the arm and the second part is held by a spring on the first part, and wherein the second part the bridge is driven by a mechanism along the fixed axis. An advantage of the device according to the invention is that in a blockage of the arm for actuating the handle - for example by fused contacts - is prevented due to the spring-closed connection between the first part and the second part of the bridge that this arm is damaged.

In einer Ausgestaltung der Vorrichtung ist die Feder mit einer Federkonstante ausgebildet, die es erlaubt eine Kraft größer der Gegenkraft des elektrischen Schalters beim Schalten aufzubringen, die aber nicht die maximal zulässige Schaltkraft überschreitet.In one embodiment of the device, the spring is formed with a spring constant, which allows a greater force of the counterforce of the electric switch when switching but does not exceed the maximum permissible switching force.

In einer Ausgestaltung der Vorrichtung wird bei Überschreiten der Gegenkraft des elektrischen Schalters beim Schalten durch den von der Brücke angetriebenen Arm der erste Teil vom zweiten Teil entgegen der Federkraft getrennt und der Arm nicht weiter in eine erste Richtung bewegt. Vorteilhaft hierbei ist, dass eine Beschädigung des Arms bzw. der Vorrichtung oder des elektrischen Schalters verhindert wird.In one embodiment of the device, when the counterforce of the electric switch is exceeded, when switching through the arm driven by the bridge, the first part is separated from the second part against the spring force and the arm is no longer moved in a first direction. The advantage here is that damage to the arm or the device or the electrical switch is prevented.

In einer weiteren Ausgestaltung der Vorrichtung ist die Feder als Druckfeder ausgebildet und bei Überschreiten der Gegenkraft des elektrischen Schalters beim Schalten durch den von der Brücke angetriebenen Arm wird Energie in der zusammengedrückten Druckfeder gespeichert. Alternativ kann die Feder als Zugfeder ausgebildet sein und bei Überschreiten der Gegenkraft des elektrischen Schalters beim Schalten durch den von der Brücke angetriebenen Arm wird Energie in der gedehnten Zugfeder gespeichert.In a further embodiment of the device, the spring is designed as a compression spring and energy is stored in the compressed compression spring when the counterforce of the electrical switch when switching through the arm driven by the bridge is exceeded. Alternatively, the spring may be formed as a tension spring and energy is stored in the stretched tension spring when the counterforce of the electric switch when switching through the arm driven by the bridge is exceeded.

In einer Ausgestaltung der Vorrichtung bewegt die in der Feder gespeicherten Energie den Armen in eine zweite Richtung entgegengesetzt zur ersten Richtung. Dadurch wird sichergestellt, dass beispielsweise bei verschmolzenen Kontakten die Handhabe in die "EIN"-Stellung bewegt wird und somit ein Operateur nicht einen falschen Status des elektrischen Schalters an der Handhabe abliest.In one embodiment of the device, the energy stored in the spring moves the arms in a second direction opposite to the first direction. This ensures that, for example, when fused contacts the handle is moved to the "ON" position and thus a surgeon does not read a wrong status of the electrical switch on the handle.

In einer weiteren Ausgestaltung der Vorrichtung bewegt die Bewegung des Armes in erster Richtung die Handhabe des elektrischen Schalters in Richtung der "AUS"-Stellung und die Bewegung des Armes in zweiter Richtung die Handhabe des elektrischen Schalters in Richtung der "EIN"-Stellung.In a further embodiment of the device, the movement of the arm in the first direction moves the handle of the electric switch in the direction of the "OFF" position and the movement of the arm in the second direction, the handle of the electrical switch in the direction of the "ON" position.

In einer Ausgestaltung der Vorrichtung umfasst der Mechanismus ein angetriebenes Rad mit einem Zapfen, wobei der Zapfen mit einer Hervorhebung am zweiten Teil der Brücke zusammenwirkt zum Antrieb der Brücke.In one embodiment of the device, the mechanism comprises a driven wheel with a pin, wherein the pin with a highlight on the second part of the bridge cooperates to drive the bridge.

Die erfindungsgemäße Aufgabe wird ebenfalls durch einen elektrischen Schalter mit einer Handhabe zum Schalten des elektrischen Stromes und einer erfindungsgemäßen Vorrichtung gelöst, wobei der Arm der Vorrichtung die Handhabe so umschließt, dass die Bewegung des Armes in erster Richtung die Handhabe in Richtung der "AUS"-Stellung des elektrischen Schalters bewegt und die Bewegung des Armes in zweiter Richtung die Handhabe in Richtung der "EIN"-Stellung bewegt.The object of the invention is also achieved by an electrical switch with a handle for switching the electric current and a device according to the invention, wherein the arm of the device surrounds the handle so that the movement of the arm in the first direction, the handle in the direction of "OFF" Position of the electric switch moves and the movement of the arm in the second direction moves the handle in the direction of the "ON" position.

Die oben beschriebenen Eigenschaften, Merkmale und Vorteile dieser Erfindung, sowie die Art und Weise, wie sie erreicht werden, werden klarer und deutlicher verständlich im Zusammenhang mit der folgenden Beschreibung der Ausführungsbeispiele, die im Zusammenhang mit den Figuren näher erläutert werden.The above-described characteristics, features and advantages of this invention, as well as the manner in which they will be achieved, will become clearer and more clearly understood in connection with the following description of the embodiments, which will be explained in connection with the figures.

Dabei zeigen:

Figur 1
Vorrichtung zur Betätigung einer Handhabe mit Arm und Brücke bestehend aus einem ersten Teil und einem zweiten Teil;
Figur 2
Vorrichtung zur Betätigung einer Handhabe bei Überschreiten der Gegenkraft des elektrischen Schalters;
Figur 3
Vorrichtung zur Betätigung einer Handhabe mit zusammengedrückter Druckfeder;
Figur 4A und Figur 4B
Vorrichtung zur Betätigung einer Handhabe mit zusammengedrückter Druckfeder;
Figur 5
Vorrichtung zur Betätigung einer Handhabe, nachdem die gespeicherte Energie den Arm in entgegengesetzte Richtung bewegt hat; und
Figur 6
Elektrischer Schalter mit Handhabe und Arm.
Showing:
FIG. 1
Device for actuating a handle with arm and bridge consisting of a first part and a second part;
FIG. 2
Device for actuating a handle when the counterforce of the electrical switch is exceeded;
FIG. 3
Device for actuating a handle with a compressed compression spring;
Figure 4A and Figure 4B
Device for actuating a handle with a compressed compression spring;
FIG. 5
A device for actuating a handle after the stored energy has moved the arm in the opposite direction; and
FIG. 6
Electric switch with handle and arm.

In Figur 1 wird eine Vorrichtung 100 zur Betätigung einer Handhabe 910 eines elektrischen Schalters 900 mit elektrischen Kontakten 920, 921 dargestellt. Die Vorrichtung 100 umfasst einen Arm 130 zur Betätigung der Handhabe 910 des elektrischen Schalters 900. Dieser ist in Figur 6 näher dargestellt, die einen Schalter 900 mit elektrischen Kontakten 920, 921 und eine Handhabe 910 darstellt. Durch Betätigung der Handhabe 910 kann der elektrische Schalter 900 in die "EIN"-Stellung oder "AUS"-Stellung gebracht werden. Entsprechend der Figur 6 befindet sich beispielsweise die Handhabe 910 in der rechten Position in der "EIN"-Stellung und würde nach links überführt werden in die "AUS"-Stellung. Die Handhabe 910 wird dadurch durch die Vorrichtung 100 betätigt, dass der Arm 130 die Handhabe 910 umschließt und der Arm 130 eine Bewegung nach rechts oder links ausführt. Der Arm 130 weist eine Öffnung 131 auf, in die die Handhabe 910 ragt.In FIG. 1 a device 100 for actuating a handle 910 of an electrical switch 900 with electrical contacts 920, 921 is shown. The device 100 comprises an arm 130 for actuating the handle 910 of the electrical switch 900. This is in FIG. 6 shown in more detail, which is a switch 900 with electrical contacts 920, 921 and a handle 910. By operating the handle 910, the electrical switch 900 can be brought into the "ON" position or "OFF" position. According to the FIG. 6 For example, in the right position, the handle 910 will be in the "ON" position and would be translated to the left to the "OFF" position. The handle 910 is actuated by the device 100 in that the arm 130 encloses the handle 910 and the arm 130 makes a movement to the right or left. The arm 130 has an opening 131 into which the handle 910 protrudes.

Gemäß Figur 1 steht der Arm 130 entsprechend der Figur 6 in Wirkverbindung mit einer mechanischen Brücke 200, die eine Linearbewegung entlang einer festen Achse 500 ausführen kann. Die Brücke 200 ist zweiteilig mit einem ersten Teil 210 und einem zweiten Teil 220 ausgebildet. Der erste Teil 210 und der zweite Teil 220 sind somit ebenfalls entlang der festen Achse 500 beweglich. Der erste Teil 210 der Brücke 200 steht in Wirkverbindung mit dem Arm 130. Entsprechend der Figur 1 ist der Arm 130 mechanisch starr am ersten Teil 201 der Brükke 200 angebracht.According to FIG. 1 the arm 130 is corresponding to the FIG. 6 in operative connection with a mechanical bridge 200 capable of linear motion along a fixed axis 500. The bridge 200 is formed in two parts with a first part 210 and a second part 220. The first part 210 and the second part 220 are thus also movable along the fixed axis 500. The first part 210 of the bridge 200 is in operative connection with the arm 130 FIG. 1 the arm 130 is mechanically rigidly attached to the first part 201 of the bridge 200.

Der erste Teil 210 ist mit dem zweiten Teil 220 der Brücke 200 so verbunden, dass eine Feder 600 den zweiten Teil 220 am ersten Teil 210 hält. Die Feder 600 gemäß der Figur 1 ist eine Druckfeder, die den zweiten Teil 210 entsprechend der Figur 1 nach rechts zieht und somit bewirkt, dass der erste Teil 210 und der zweite Teil 220 zusammenhalten. Zusätzlich umfasst die Vorrichtung 100 einen Mechanismus, der den zweiten Teil 220 der Brücke 200 entlang der festen Achse 500 antreibt. Entsprechend der Figur 1 umfasst dieser Mechanismus ein angetriebenes Rad 800 mit einem Zapfen 810, wobei der Zapfen 810 mit einer Hervorhebung 221 am zweiten Teil 220 der Brücke 200 zum Antrieb der Brücke 200 zusammenwirkt. Die Hervorhebung 221 ragt entsprechend der Figur 1 am unteren Teil des zweiten Teils 220 der Brücke 200 heraus, so dass bei einer Drehbewegung des angetriebenen Rades 800 der Zapfen 810 entsprechend der Figur 1 die Brücke 200 in eine erste Richtung 510 schieben kann.The first part 210 is connected to the second part 220 of the bridge 200 such that a spring 600 holds the second part 220 on the first part 210. The spring 600 according to the FIG. 1 is a compression spring, the second part 210 according to the figure 1 pulls to the right and thus causes the first part 210 and the second part 220 together. In addition, the apparatus 100 includes a mechanism that drives the second portion 220 of the bridge 200 along the fixed axis 500. According to the FIG. 1 For example, this mechanism includes a driven wheel 800 with a pin 810, the pin 810 cooperating with a projection 221 on the second part 220 of the bridge 200 to drive the bridge 200. The emphasis 221 protrudes according to the FIG. 1 at the lower part of the second part 220 of the bridge 200 out, so that upon rotation of the driven wheel 800 of the pin 810 according to the FIG. 1 the bridge 200 can slide in a first direction 510.

Die Federkonstante der Feder 600 ist so ausgebildet, dass eine Kraft größer der Gegenkraft des elektrischen Schalters 900 beim Schalten von der Feder 600 aufgebracht wird. Dies bedeutet, dass bei beispielsweise nicht verschmolzenen Kontakten 920, 921 im normalen und fehlerfreien Schaltvorgang die Federkonstante so gewählt ist, dass der erste Teil 210 und der zweite Teil 220 der Brücke 200 von der Feder 600 zusammengehalten werden. Bei höheren Kräften als der Gegenkraft des elektrischen Schalters 900 beim Schalten, wie sie beispielsweise auftreten bei verschmolzenen elektrischen Kontakten 920, 921, ist die Federkonstante so ausgelegt, dass die maximal zulässige Schaltkraft nicht überschritten wird. Das heißt, bei verschmolzenen Kontakten 920, 921 löst sich der erste Teil 210 vom zweiten Teil 220 der Brücke 200.The spring constant of the spring 600 is designed such that a force greater than the counterforce of the electrical switch 900 is applied when switching by the spring 600. This means that, for example, not fused contacts 920, 921 in the normal and error-free switching operation, the spring constant is selected so that the first part 210 and the second part 220 of the bridge 200 are held together by the spring 600. At higher forces than the counter-force of the electric switch 900 during switching, such as occur in fused electrical contacts 920, 921, the spring constant is designed so that the maximum permissible switching force is not exceeded. That is, when fused contacts 920, 921, the first part 210 separates from the second part 220 of the bridge 200th

Dies ist in Figur 2 näher dargestellt, die zeigt, dass der erste Teil 210 vom zweiten Teil 220 der Brücke 200 getrennt sind. Beispielsweise verschmolzene Kontakte 920, 921 führen dazu, dass die Handhabe 910 nicht vollständig in die "AUS"-Stellung überführt werden kann aufgrund der verschmolzenen Kontakte 920, 921. In so einem Fall kommt es zu einer Trennung des ersten Teils 210 vom zweiten Teil 220 unter dem Zusammendrücken der Druckfeder 600. Dies bedeutet, dass der Arm 130 nicht weiter in die erste Richtung 510 bewegt wird, statt dessen wird Energie in der zusammengedrückten Druckfeder 600 gespeichert.This is in FIG. 2 shown in detail, which shows that the first part 210 from the second part 220 of the bridge 200 are separated. For example, fused contacts 920, 921 cause the handle 910 can not be completely transferred to the "OFF" position due to the fused contacts 920, 921. In such a case, there is a separation of the first part 210 from the second part 220th under the compression of the compression spring 600. This means that the arm 130 is not moved further in the first direction 510, instead, energy is stored in the compressed compression spring 600.

In Figur 3 ist der zweite Teil 210 weiter vom ersten Teil 210 der Brücke 200 entfernt als in der Darstellung der Figur 2. Es wurde weitere Energie in der Feder 600 gespeichert, die als Druckfeder weiter zusammengedrückt wurde.In FIG. 3 the second part 210 is further away from the first part 210 of the bridge 200 than in the illustration of FIG FIG. 2 , Additional energy was stored in the spring 600, which was further compressed as a compression spring.

Die Figur 4A zeigt ebenfalls die Brücke 200 mit erstem Teil 210 und zweitem Teil 220, die aufgrund des Blockierens der Kontakte 920, 921, beispielsweise wegen Verschmelzen, getrennt sind.The FIG. 4A also shows the bridge 200 with first part 210 and second part 220, which are separated due to the blocking of the contacts 920, 921, for example, because of merging.

Figur 4B zeigt eine Ansicht des Arms 130, der eine Handhabe 910 eines elektrischen Schalters 900 betätigen kann, und ebenfalls die Brücke 200 mit getrenntem ersten Teil 210 und zweitem Teil 220. FIG. 4B 11 shows a view of the arm 130, which can actuate a handle 910 of an electrical switch 900, and also the bridge 200 with a separate first part 210 and a second part 220.

In Figur 5 ist dargestellt, dass die Energie, die in der Druckfeder 600 gespeichert war, freigegeben worden ist und die Brücke 200 in die zweite Richtung 520 entgegengesetzt zur ersten Richtung 510 entlang der festen Achse 500 geschoben wurde. Der Zapfen 810 wirkt nicht mehr mit der Hervorhebung 221 am zweiten Teil 220 der Brücke 200 zusammen, da der Zapfen 810 aufgrund seiner Kreisbewegung des angetriebenen Rades 800 sich räumlich von der Brücke 200 so weit entfernt hat, dass kein Zusammenwirken mehr möglich ist.In FIG. 5 As shown, the energy stored in the compression spring 600 has been released and the bridge 200 has been slid in the second direction 520 opposite the first direction 510 along the fixed axis 500. The pin 810 no longer cooperates with the highlighting 221 on the second part 220 of the bridge 200, since the pin 810 due to its circular movement of the driven wheel 800 has moved away from the bridge 200 so far that no interaction is possible.

Die Energie in der zusammengedrückten Druckfeder 600 war so groß, dass der Arm 130 die Handhabe 910 in die ursprüngliche Stellung zurückgeführt hat. Typischerweise ist dies die "EIN"-Stellung, so dass einem Operateur angezeigt wird, dass die Vorrichtung 100 den elektrischen Schalter 900 nicht in die "AUS"-Stellung überführen konnte. Somit ist die Stellung der Handhabe 910 entsprechend dem Status der Kontakte 920, 921, die aufgrund eines Verschmelzens nicht voneinander getrennt werden können. Ein Operateur weiß, dass somit der elektrische Schalter 900 eine Fehlfunktion aufweist und kann diese gezielt beheben.The energy in the compressed compression spring 600 was so great that the arm 130 returned the handle 910 to its original position. Typically, this is the "on" position, indicating to a surgeon that the device 100 could not translate the electrical switch 900 to the "off" position. Thus, the position of the handle 910 is in accordance with the status of the contacts 920, 921, which can not be separated due to fusion. An operator knows that thus the electrical switch 900 has a malfunction and can fix this targeted.

Die Vorrichtung 100 kann anstatt einer Druckfeder ebenfalls eine Zugfeder aufweisen, wobei dann die Energie des angetriebenen Armes 130 in der Dehnung der Zugfeder gespeichert wird.The device 100 may also have a tension spring instead of a compression spring, in which case the energy of the driven arm 130 is stored in the extension of the tension spring.

Vorteilhaft ist, dass die Vorrichtung 100 zur Betätigung einer Handhabe 910 eines elektrischen Schalters 900 verhindert, dass zu große Kräfte durch den Motorantrieb auf die Handhabe 910 ausgeübt werden, so dass es zu einer Beschädigung des Schaltmechanismus des elektrischen Schalters 900 kommen würde. Ebenso stellt die Vorrichtung 100 sicher, dass die Stellung der Handhabe 910 dem tatsächlichen physikalischen Status der Kontakte 920, 921 entspricht. Ebenso wird durch die Vorrichtung 100 verhindert, dass bei verschmolzenen Kontakten 920, 921 der Motorantrieb beschädigt wird. Beispielsweise der Arm 130, der bei einer seitlichen Montage der Vorrichtung 100 am Schalter 510 eine gewisse Länge aufweisen, somit auch eine gewisse Hebelwirkung hat, so dass er verformt werden kann oder brechen. Der Zustand entsprechend der Figur 5 signalisiert einem Operateur eindeutig, dass ein Fehler am elektrischen Schalter 900 vorliegt. Zusätzlich kann dieser Fehler durch einen Mikroschalter abgefragt werden, so dass in einer Fernwarte angezeigt wird, dass der elektrische Schalter 900 eine Fehlfunktion aufweist.It is advantageous that the device 100 for actuating a handle 910 of an electrical switch 900 prevents excessive forces from being exerted on the handle 910 by the motor drive, so that the switching mechanism of the electrical switch 900 would be damaged. Likewise, the device 100 ensures that the position of the handle 910 corresponds to the actual physical status of the contacts 920, 921. Likewise, device 100 prevents fused contacts 920, 921 from damaging the motor drive. For example, the arm 130, which at a side mounting of the device 100 on the switch 510 have a certain length, thus also has a certain leverage, so that it can be deformed or break. The condition according to the FIG. 5 clearly signals to a surgeon that there is a fault in the electrical switch 900. In addition, this error can be queried by a microswitch, so that it is displayed in a remote control that the electrical switch 900 has a malfunction.

Claims (9)

Vorrichtung (100) zur Betätigung einer Handhabe (910) eines elektrischen Schalters (900) mit elektrischen Kontakten (920, 921),
dadurch gekennzeichnet, dass die Vorrichtung (100) einen Arm (130) zur Betätigung der Handhabe (910) des elektrischen Schalters (900) umfasst, der in Wirkverbindung mit einer mechanischen Brücke (200) steht, die eine Linearbewegung entlang einer festen Achse (500) ausführen kann, wobei die Brücke (200) zweiteilig mit einem ersten Teil (210) und einem zweiten Teil (220) ausgebildet ist, und diese beiden Teile (210, 220) entlang der festen Achse (500) beweglich sind, der erste Teil (210) der Brücke (200) in Wirkverbindung mit dem Arm (130) steht und der zweite Teil (220) von einer Feder (600) am ersten Teil (210) gehalten wird, und wobei der zweite Teil (22) der Brücke (200) mit einem Mechanismus entlang der festen Achse (500) angetrieben wird. Device (100) for actuating a handle (910) of an electrical switch (900) with electrical contacts (920, 921),
characterized in that the device (100) comprises an arm (130) for actuating the handle (910) of the electrical switch (900), which is in operative connection with a mechanical bridge (200) which moves linearly along a fixed axis (500 ), wherein the bridge (200) is formed in two parts with a first part (210) and a second part (220), and these two parts (210, 220) are movable along the fixed axis (500), the first part (210) of Bridge (200) is in operative connection with the arm (130) and the second part (220) by a spring (600) on the first part (210) is held, and wherein the second part (22) of the bridge (200) is driven by a mechanism along the fixed axis (500). Vorrichtung (100) gemäß Anspruch 1, bei der die Feder (600) mit einer Federkonstante ausgebildet ist, die es erlaubt eine Kraft größer der Gegenkraft des elektrischen Schalters (900) beim Schalten aufzubringen, die aber nicht die maximal zulässige Schaltkraft überschreitet.Device (100) according to claim 1, wherein the spring (600) is formed with a spring constant, which allows a force greater than the counterforce of the electrical switch (900) to apply during switching, but does not exceed the maximum permissible switching force. Vorrichtung (100) gemäß Anspruch 1 oder 2, bei der bei Überschreiten der Gegenkraft des elektrischen Schalters (900) beim Schalten durch den von der Brücke (200) angetriebenen Arm (130) der erste Teil (210) vom zweiten Teil (220) entgegen der Federkraft getrennt wird und der Arm (130) nicht weiter in eine erste Richtung (510) bewegt wird.Device (100) according to claim 1 or 2, wherein when the counterforce of the electrical switch (900) is exceeded when switching through the arm (130) driven by the bridge (200), the first part (210) opposes the second part (220) the spring force is disconnected and the arm (130) is not further moved in a first direction (510). Vorrichtung (100) gemäß Anspruch 3, bei der die Feder (600) als Druckfeder ausgebildet ist und bei Überschreiten der Gegenkraft des elektrischen Schalters (900) beim Schalten durch den von der Brücke (200) angetriebenen Arm (130) Energie in der zusammengedrückten Druckfeder gespeichert wird.Device (100) according to claim 3, wherein the spring (600) is designed as a compression spring and when the counterforce of the electrical switch (900) when switching through the bridge (200) driven arm (130) energy in the compressed compression spring is stored. Vorrichtung (100) gemäß Anspruch 3, bei der die Feder (600) als Zugfeder ausgebildet ist und bei Überschreiten der Gegenkraft des elektrischen Schalters (900) beim Schalten durch den von der Brücke (200) angetriebenen Arm (130) Energie in der gedehnten Zugfeder gespeichert wird.Device (100) according to claim 3, wherein the spring (600) is designed as a tension spring and when the counterforce of the electrical switch (900) when switching through the bridge (200) driven arm (130) energy in the stretched tension spring is stored. Vorrichtung (100) gemäß Anspruch 4 oder 5, bei der die in der Feder (600) gespeicherte Energie den Arm (130) in eine zweite Richtung (520) entgegengesetzt zur ersten Richtung (510) bewegt.Apparatus (100) according to claim 4 or 5, wherein the energy stored in the spring (600) moves the arm (130) in a second direction (520) opposite to the first direction (510). Vorrichtung (100) gemäß Anspruch 6, bei der die Bewegung des Arms (130) in erster Richtung (510) die Handhabe (910) des elektrischen Schalters (900) in Richtung der "AUS"-Stellung bewegt und die Bewegung des Arms (130) in zweiter Richtung (520) die Handhabe (910) des elektrischen Schalters (900) in Richtung der "EIN"-Stellung bewegt.The apparatus (100) of claim 6, wherein movement of the arm (130) in the first direction (510) moves the handle (910) of the electrical switch (900) toward the "OFF" position and movement of the arm (130 ) in the second direction (520) moves the handle (910) of the electrical switch (900) in the direction of the "ON" position. Vorrichtung (100) gemäß einem der vorherigen Ansprüche, bei der der Mechanismus ein angetriebenes Rad (800) mit einem Zapfen (810) umfasst, wobei der Zapfen (810) mit einer Hervorhebung (221) am zweiten Teil (220) der Brücke (200) zum Antrieb der Brücke (200) zusammenwirkt.Apparatus (100) according to any one of the preceding claims, wherein the mechanism comprises a driven wheel (800) having a pin (810), the pin (810) being provided with a projection (221) on the second part (220) of the bridge (200 ) cooperates to drive the bridge (200). Elektrischer Schalter (900) mit einer Handhabe (910) zum Schalten des elektrischen Schalters (900) und mit einer Vorrichtung (100) gemäß einem der vorherigen Ansprüche, wobei der Arm (130) der Vorrichtung (100) die Handhabe (910) so umschließt, dass die Bewegung des Arm (130) in erster Richtung (510) die Handhabe (910) in Richtung der "AUS"-Stellung des elektrischen Schalters (900) bewegt und die Bewegung des Arms (130) in zweiter Richtung (520) die Handhabe (910) in Richtung der "EIN"-Stellung bewegt.An electrical switch (900) having a handle (910) for switching the electrical switch (900) and a device (100) according to any one of the preceding claims, wherein the arm (130) of the device (100) is the Handle (910) so that the movement of the arm (130) in the first direction (510) moves the handle (910) in the direction of the "OFF" position of the electrical switch (900) and the movement of the arm (130) in second direction (520) moves the handle (910) toward the "ON" position.
EP16170282.4A 2015-08-04 2016-05-19 Device for actuating an operating handle and electrical switch Active EP3128531B1 (en)

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CN106449195A (en) 2017-02-22
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DE102015214827A1 (en) 2017-02-09

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