EP2624275B2 - Elektrischer Schalter - Google Patents

Elektrischer Schalter Download PDF

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Publication number
EP2624275B2
EP2624275B2 EP12189952.0A EP12189952A EP2624275B2 EP 2624275 B2 EP2624275 B2 EP 2624275B2 EP 12189952 A EP12189952 A EP 12189952A EP 2624275 B2 EP2624275 B2 EP 2624275B2
Authority
EP
European Patent Office
Prior art keywords
switch
motor drive
control signal
control
electrical
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.)
Active
Application number
EP12189952.0A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2624275A1 (de
EP2624275B1 (de
Inventor
Jiri Stejskal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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Publication date
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Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2624275A1 publication Critical patent/EP2624275A1/de
Application granted granted Critical
Publication of EP2624275B1 publication Critical patent/EP2624275B1/de
Publication of EP2624275B2 publication Critical patent/EP2624275B2/de
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Classifications

    • 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
    • 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
    • H01H2003/266—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor having control circuits for motor operating switches, e.g. controlling the opening or closing speed of the contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/024—Avoid unwanted operation

Definitions

  • the invention relates to an electrical switch having the features according to the preamble of patent claim 1.
  • Such a switch is from the US patent U.S. 6,107,702 known.
  • Another motorized switch is in German Offenlegungsschrift DE 10 2009 038 435 A1 described.
  • electrical switches can be equipped with separate motor drives, with which the electrical switches can be switched over by remote control.
  • motor drives are usually placed from the outside onto the switch housing of the electrical switch.
  • the invention is based on the object of specifying an electrical switch which enables remote control of the motor drive from the outside and thereby ensures a particularly high degree of operational safety.
  • the motor drive has a control device which is designed such that it allows remote actuation of the electrical switch by the motor drive only when the control switch is in its second switch position and at the same time the control signal changes the signal at the control signal input.
  • a major advantage of the motor drive according to the invention is that it prevents the switch from being accidentally switched on if, when the control switch is switched over at the control signal input, there is still an electrical residual potential that can be traced back to a previous remote control of the motor drive that is no longer current is. If, for example, the electrical switch has to be switched on at an earlier point in time by applying a corresponding potential to the control signal input, but the execution of this command has been prevented due to the first switch position of the control switch, it could happen at a later point in time when the control switch is in the second switch position is brought to a faulty remote control of the switch if the potential previously applied to the control signal input has not been reset or removed.
  • the control device preferably only takes into account those signal changes which indicate a signal information change.
  • the control signal at the control signal input can have switch-off information requesting the switch to be switched off and switch-on information requesting the switch to be switched on
  • the control device is designed in such a way that it enables the electrical switch to be switched on Motor drive is only initiated when the control switch assumes its second switch position and at the same time the control signal changes from the switch-off information to the switch-on information.
  • the control device evaluates a control signal that carries the information for switching the switch on or off.
  • control signal at the control signal input can have a "switch-off level” requiring the switch to be switched off and a “switch-on level” requiring the switch to be switched on, and the control device is designed such that it switches on The motor drive only switches on the electrical switch when the operating switch assumes its second switch position and at the same time the control signal changes from the switch-off level to the switch-on level.
  • the control device is preferably designed in such a way that it does not take into account the control signal at the control signal input for a predetermined blocking time after the switching position of the operating switch has changed.
  • control switch preferably has a third switch position in which the motor drive and thus a changeover of the electrical switch are blocked by the motor drive.
  • the second switch position of the control switch is preferably arranged between the first and third switch positions of the control switch. In this case, it is considered advantageous if changing the operating switch from the first to the third switching position or changing from the third to the first switching position requires an intermediate activation or passage of the second switching position.
  • the operating switch is preferably a slide switch.
  • the motor drive In order to enable the motor drive to be easily attached to the switch housing of the switch, it is considered advantageous if the motor drive is held on a switch housing of the switch by means of a latching device which enables the motor drive to be removed by unlatching the latching device.
  • the latching device preferably has at least one unlocking element which can be actuated by the operator, with which the locking device can be unlocked and the motor drive can be removed.
  • the unlocking element When operated by the operator, the unlocking element preferably causes both the unlocking of the locking device and a changeover of the operating switch to the second switching position.
  • the invention also relates to a motor drive, in particular for an electrical switch, as has been described above.
  • the invention proposes that the motor drive has a control switch which enables at least two switching positions, the control switch in a first switching position for manual operation of the motor drive and in a second switching position for remote control of the motor drive via a control signal at a control signal input of the motor drive allowed, and the motor drive has a control device connected to the control switch and the control signal input, which control device is designed in such a way that it allows remote actuation of the electrical switch by the motor drive only when the control switch is in its second switch position and at the same time the control signal changes the signal to the control signal input.
  • the Figure 1 shows an electrical switch 10, which can be, for example, an electrical power switch, in particular a three-phase electrical power switch.
  • the switch 10 comprises a switch housing 20 in which there are electrical switching contacts (not shown further) with which a single-phase or multi-phase current I can be switched on and off.
  • the electrical switch 10 is also equipped with a motor drive 30, which is held on the switch housing 20 of the switch 10 by means of a latching device (not shown).
  • the latching device enables the motor drive 30 to be removed from the switch housing 20 by pressing a latching element 40 that can be actuated by the operator.
  • the unlocking element 40 By actuating the unlocking element 40, the locking device is transferred from a locked position to a unlocked position and the motor drive 30 is released so that the motor drive 30 can be removed from the switch housing 20.
  • a control switch 50 which is attached to an outside of the motor drive 30.
  • the operating switch 50 enables three switching positions, namely a first switching position, which is identified by the reference symbol M, and a second switching position, which is identified by the reference symbol R, as well as a third switching position, which is identified by the reference character L.
  • the motor drive 30 enables remote control from a distance.
  • a first control signal input is identified by the reference numeral 60 and a second control signal input is identified by the reference numeral 70.
  • the first control signal input 60 is used to feed in a remote control activation signal SR with which remote control of the motor drive 30 can be activated, provided that the control switch 50 is in its second switch position R.
  • the second control signal input 70 is used to feed in a changeover signal SU with which the electrical switch or the switching contacts located in the switch housing 20 of the electrical switch for switching the current I on or off can be adjusted.
  • the motor drive 30 is with one in the Figure 1 Equipped control device, not shown, which processes the two control signals present at the two control signal inputs 60 and 70, that is, the remote control activation signal SR and the changeover signal SU, depending on the respective switch position of the operating switch 50.
  • control device 100 comprises an evaluation module 110 and two AND elements 120 and 130.
  • the evaluation module 110 of the control device 100 has received the remote control activation signal SR and an operating switch position signal SA.
  • the control switch position signal SA indicates the respective switch position of the control switch 50 according to FIG Figure 1 on: In the following, it is assumed by way of example that the control switch position signal SA has a logic “1” when the control switch 50 is in its second switch position R. If, on the other hand, the control switch 50 is in its first switch position M or its third switch position L, the control switch position signal SR has a logic “0” in the exemplary embodiments described here. Of course, the assignment can also be reversed.
  • the function of the evaluation module 110 is to use the remote control activation signal SR and the operating switch position signal SA to generate an enable signal SRB for enabling the remote control of the motor drive 30.
  • the evaluation module 110 or the control device 100 as a whole can be formed, for example, by a microprocessor or a microcontroller or at least also include one.
  • the mode of operation of the evaluation module 110 is exemplified on the basis of FIG Figure 3 explained in more detail.
  • the Figure 3 also shows, by way of example, the time profile of the switch position of the operating switch 50 according to Figure 1 . It can be seen that the control switch 50 is in the third switch position L in the time span between 0 and t2, the second switch position R in the time span between t2 and t6, the first switch position M in the time span between t6 and t8 and again from time t8 the second switch position R should take.
  • the Figure 3 also shows the time profile of the control switch position signal SA over time t. It can be seen that the control switch position signal SA only has a logic “1” in the time interval between t2 and t6 and from time t8. In the time periods between 0 and t2 and between t6 and t8, the control switch position signal SA has a logic “0” because the control switch 50 is either in the first switch position M or in the third switch position L.
  • the evaluation module 110 of the control device 100 evaluates the remote control activation signal SR and the control switch position signal SA and generates the enable signal SRB to enable the remote control in such a way that the enable signal SRB only has a logic "1" when the control switch position signal SA a logic "1" and at the same time the remote control activation signal SR has a positive signal edge having.
  • the enable signal SRB will thus only have a logic "1" in the time periods between t4 and t5 and between t10 and t11, since both criteria are met only in these two time slots.
  • the operating switch position signal SA has a logic "0"
  • there is no positive signal level change in the remote control activation signal SR are in the Figure 3 marked with arrows for better understanding.
  • the further AND element 130 will generate a switch-off signal SAUS with a logic "1", with which the electrical switch 10 according to FIG Figure 1 or its switching contacts are switched off.
  • the output signals SEIN and SAUS are forwarded to a motor drive control of the motor drive 30, not shown, which can activate the motor drive 30 and switch the electrical switch on or off as a function of the logical states of the two signals.
  • FIG. 11 shows a second exemplary embodiment for a control device which is used in the motor drive 30 according to Figure 1 can be used.
  • the control device 200 comprises two evaluation modules 210 and 220, each of which receives the changeover signal SU and the control switch position signal SA.
  • the evaluation modules 210 and 220 can be formed, for example, by a microprocessor or a microcontroller.
  • the evaluation module 210 On the output side, the evaluation module 210 generates a switch-on signal SEIN for switching on the electrical switch 10 or for switching on the current I according to FIG Figure 1 when the operating switch position signal SA has a logic “1" and the changeover signal SU changes from a logic "0" to a logic "1".
  • the changeover signal SU has a logic “0” when the electrical switch 10 according to FIG Figure 1 should be switched off, and has a logical "1" if the electrical switch according to Figure 1 should be switched on.
  • the timing of the switch-on signal SEIN is exemplified in FIG Figure 5 shown. It can be seen that the switch-on signal SEIN only has a logic "1" in the time slots between t4 and t5 and between t10 and t11, whereas the switch-on signal SEIN has a logic "0" in all other time slots.
  • the second evaluation module 220 works analogously, although it is intended to generate a switch-off signal SAUS on the output side, in each case when the control switch position signal SA has a logic "1" and the changeover signal SU shows a negative signal edge.
  • the course of the switch-off signal SAUS over time is exemplified in FIG Figure 6 shown.
  • the output signals SEIN and SAUS of the two evaluation modules 210 and 220 of the control device 200 are forwarded to a motor drive control (not shown) of the motor drive 30 which, depending on the logic states of the two signals SEIN and SAUS, activate the motor drive 30 and switch the electrical switch on or off can turn off.

Landscapes

  • Control Of Electric Motors In General (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Lock And Its Accessories (AREA)
EP12189952.0A 2012-02-02 2012-10-25 Elektrischer Schalter Active EP2624275B2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012201549A DE102012201549A1 (de) 2012-02-02 2012-02-02 Elektrischer Schalter

Publications (3)

Publication Number Publication Date
EP2624275A1 EP2624275A1 (de) 2013-08-07
EP2624275B1 EP2624275B1 (de) 2017-11-29
EP2624275B2 true EP2624275B2 (de) 2021-01-13

Family

ID=47115506

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Application Number Title Priority Date Filing Date
EP12189952.0A Active EP2624275B2 (de) 2012-02-02 2012-10-25 Elektrischer Schalter

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EP (1) EP2624275B2 (zh)
CN (1) CN103246211B (zh)
DE (1) DE102012201549A1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105328736A (zh) * 2015-11-27 2016-02-17 高佳 一种电路板钻孔粉分离机功率控制器
CN106935423A (zh) * 2015-12-31 2017-07-07 上海良信电器股份有限公司 断路器电动操作机构无线控制装置
CN106935449A (zh) * 2015-12-31 2017-07-07 上海良信电器股份有限公司 断路器电动操作机构无线控制及失压保护装置
CN109969585B (zh) * 2019-04-26 2021-08-27 湖北三江航天万峰科技发展有限公司 一种特制箱体自动开盖控制装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60001452T2 (de) † 1999-03-29 2004-01-08 Siemens Energy & Automation, Inc. Elektrisches steuermodul für energiespeicher für elektrische lastschalter

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DE3806370A1 (de) * 1988-02-24 1989-09-07 Siemens Ag Schaltungsanordnung zur steuerung der antriebsvorrichtung eines leistungsschalters
DE4137779C2 (de) * 1991-11-16 2001-10-04 Moeller Gmbh Motorantrieb für Schaltgeräte, wie Leistungsschalter oder Schutzschalter, mit Kipphebelbetätigung
DE19744457C1 (de) * 1997-10-08 1999-06-24 Siemens Ag Fernantrieb mit Motor für Leistungsschalter
WO1999052121A1 (en) * 1998-04-03 1999-10-14 Energyline Systems, Inc. Motor operator for overhead air break electrical power distribution switches
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DE10214890C1 (de) * 2002-04-04 2003-05-08 Moeller Gmbh Fernbetätigter Schutzschalter mit Schaltstellungsanzeige und Sicherungsfunktion
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JP5535323B2 (ja) * 2009-09-29 2014-07-02 湖北盛佳▲電▼器▲設備▼有限公司 自動スイッチングイン機能付きの内蔵式インテリジェント遮断器及びマイクロ遮断器
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DE60001452T2 (de) † 1999-03-29 2004-01-08 Siemens Energy & Automation, Inc. Elektrisches steuermodul für energiespeicher für elektrische lastschalter

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Also Published As

Publication number Publication date
DE102012201549A1 (de) 2013-08-08
CN103246211A (zh) 2013-08-14
EP2624275A1 (de) 2013-08-07
CN103246211B (zh) 2017-06-27
EP2624275B1 (de) 2017-11-29

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