EP2880672B1 - Contacteur disjoncteur électromagnétique - Google Patents

Contacteur disjoncteur électromagnétique Download PDF

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Publication number
EP2880672B1
EP2880672B1 EP13780335.9A EP13780335A EP2880672B1 EP 2880672 B1 EP2880672 B1 EP 2880672B1 EP 13780335 A EP13780335 A EP 13780335A EP 2880672 B1 EP2880672 B1 EP 2880672B1
Authority
EP
European Patent Office
Prior art keywords
voltage
switching element
switch
switching
coil
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
EP13780335.9A
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German (de)
English (en)
Other versions
EP2880672A1 (fr
Inventor
Klaus Danzer
Christian Oppermann
Bernhard Streich
Norbert Zimmermann
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
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2880672A1 publication Critical patent/EP2880672A1/fr
Application granted granted Critical
Publication of EP2880672B1 publication Critical patent/EP2880672B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device

Definitions

  • the invention relates to an electromagnetic contactor with fixed and movable contacts, which are fixed to a contact carrier, which is coupled to a movable armature, which is arranged opposite to a yoke, wherein an armature return spring and a magnetic coil are arranged between the armature and yoke.
  • contactors are increasingly equipped with unit drives for AC and DC / UC operation. That is, for the different types of control, the same iron circle is used. In this case, for example, lathed E-magnet systems or T-anchor systems are used. DC / UC drives are usually realized by connecting a control electronics. However, such E-magnet systems have a problem with the pure AC drive in the suit of the devices.
  • WO 20012/157 174 A1 is an electromagnetic relay forth with fixed and movable contacts, which are fixed to a contact carrier, which is coupled to a movable armature, which is arranged opposite to a yoke, wherein between the armature and yoke, an armature return spring and a magnetic coil are arranged, wherein a switch is arranged with a switching element in front of the magnetic coil.
  • the DE 102 35 297 B3 discloses a control arrangement for an electromagnetic drive. It contains first and second electronic switching means, which act in conjunction with a timer in the starting phase or in the holding phase, the drive coil with a corresponding DC voltage. By a controlled by the timer voltage source and a down-regulating DC-DC converter, a pull-in voltage or a holding voltage are provided.
  • the DE 41 40 034 A1 discloses a drive circuit for a voltage applied to an AC line contactor, through which a load is switchable, with an electronic circuit controlled by a semiconductor switching device, which is in series with the coil of the contactor.
  • a semiconductor switching device which is in series with the coil of the contactor.
  • the GB 2 178 597 A discloses an electrical switching device having a switching contact pair, a switching mechanism having a trigger mechanism with a releasable lever for initiating the opening movement of the switch contacts, and having at least one current-dependent means for triggering the releasable lever upon the occurrence of a predetermined overcurrent, the two switch contacts to two are arranged in the contact closing state approximately parallel to each other and in opposite directions through which the switch current flows through contact arms, one of which is coupled to the releasable lever and the other is releasably coupled to an electromagnetic actuator.
  • the object of the present invention is to provide an electromagnetic contactor, which realizes a defined tilting behavior in a simple manner.
  • this object is achieved by an electromagnetic contactor with fixed and movable contacts which are fixed to a contact carrier which is coupled to a movable armature, which is arranged opposite to a yoke, wherein an armature return spring and a magnetic coil are arranged between the armature and yoke ,
  • the Invention is characterized in that a switch with a switching element is arranged in front of the magnetic coil.
  • the switching element according to the invention may be formed, for example, as a thyristor, triac, transistor or relay.
  • the switching element in the switch in front of the magnetic coil only then releases the voltage to the magnetic coil when a certain voltage is exceeded.
  • the voltage is detected at the input terminals, for example via a comparator, a zener diode or a varistor.
  • the voltage at the magnetic coil can also be detected, for example via a comparator, a Zener diode or a varistor, in order to avoid, for example, in the case of thyristors a phase control over the entire period of operation.
  • the two detected voltages are then evaluated (for example, by a microcontroller, comparator, an operational amplifier, a Logic gate or via discrete components) and depending on the set values, the switching element is activated.
  • the switching element according to the invention in the switch in front of the magnetic coil is designed so that it switches off the voltage at the magnetic coil when a certain voltage is exceeded.
  • the voltage at the input terminals for example via a comparator, a Zener diode or a varistor detected.
  • the detected voltage is then evaluated, for example, by a microcontroller, comparator, operational amplifier, logic gates or discrete components, and depending on the set values, the switching element according to the invention is deactivated.
  • the advantages are that the solenoid coil is reached by voltage levels that allow clean switching. Also in this embodiment, there is no longer the risk that the contacts will be welded due to too low a voltage and a simultaneous magnetic shock. Also in this embodiment, there is no energy consumption below the switch-off threshold.
  • the switching element is designed such that the switching element switches off the voltage to the magnetic coil when a certain voltage is reached.
  • the voltage at the input terminals is detected.
  • the detected voltage is then evaluated, and depending on the set values, the switching element is deactivated.
  • the invention provides that the switching element is designed such that the switching element only then releases the voltage to the magnetic coil when a certain voltage is exceeded.
  • the voltage is detected at the input terminals.
  • the voltage at the magnetic coil can also be detected in order to avoid, for example, in the case of thyristors a phase control over the entire period of operation. The two detected voltages are then evaluated and the switching element is activated depending on the set values.
  • the switching element may preferably be designed as a thyristor or as a triac or as a transistor or as a relay.
  • a first detection unit is arranged in the switch, which detects the input voltage and forwards to an evaluation and control unit, which then controls the switching element.
  • a second detection unit is arranged in the switch, which detects the coil voltage and forwards it to the evaluation and control unit, which then controls the switching element via the evaluated voltage values for both voltages.
  • the switch is an AC switch.
  • the electromagnetic contactor according to the invention is characterized in that a defined tilting behavior is made possible by positioning a switching element such as, for example, a thyristor, a triac, a transistor or a relay in a switch in front of the magnetic coil.
  • a switching element such as, for example, a thyristor, a triac, a transistor or a relay in a switch in front of the magnetic coil.
  • This defined tilting behavior prevents the contactor from fluttering due to the fact that the magnetic coil is only reached by voltage values which lead to a defined switching operation.
  • the inventive arrangement with switching element also leads to a welding of the contacts is avoided due to a too low voltage when switching. Furthermore, there is no energy consumption below the switch-on threshold or below the switch-off threshold.
  • Fig. 1 shows a circuit diagram of an electromagnetic contactor according to the invention, in which between a voltage source 1 and a solenoid coil 2, preferably an AC switch 3 is connected.
  • Fig. 2 shows a circuit diagram of an AC switch 3 according to the invention, in which via a detection unit 4, the input voltage is detected, this is passed to an evaluation and control unit 5 and the evaluation is transmitted as a result to a switching element 6.
  • the switching element 6 according to the invention can be designed as a thyristor, triac, transistor or relay.
  • the switching element 6 may be formed in front of the magnetic coil such that only then the voltage is released to the magnetic coil 2 when a certain voltage is exceeded.
  • the switching element 6 may be designed such that it switches off the voltage to the magnetic coil 2 in front of the magnetic coil 2, when a certain voltage is exceeded.
  • Fig. 3 is also a circuit diagram of an AC switch 3, wherein in addition to the detection unit 4 for the input voltage, an additional coil voltage detection unit 7 has been implemented in the AC switch 3.
  • the respective detection units 4, 7 transmit their values to the evaluation and control unit 5, which then transmit the result of both evaluated voltage values to the switching element 6.
  • the electromagnetic contactor according to the invention is characterized in that by positioning a switching element such as a thyristor, a triac, a transistor or a relay, in a switch in front of the magnetic coil a defined tilting behavior is made possible.
  • This defined tilting behavior prevents the contactor from fluttering due to the fact that the magnetic coil is only reached by voltage values which lead to a defined switching operation.
  • the inventive arrangement with switching element also leads to a welding the contacts due to a too low voltage when switching is avoided. Furthermore, there is no energy consumption below the switch-on threshold or below the switch-off threshold.

Landscapes

  • Relay Circuits (AREA)

Claims (6)

  1. Contacteur électromagnétique doté de contacts fixes et mobiles fixé sur un support de contacts, couplé à un porte-contacts mobile disposé face à une culasse, dans lequel un ressort de rappel de porte-contacts et une bobine d'induction (2) sont disposés entre le porte-contacts et la culasse, caractérisé en ce qu'un commutateur (3) avec un élément de commutation (6) est disposé avant la bobine d'induction (2), afin de permettre un comportement de basculement défini, dans lequel le comportement de basculement défini fait qu'un flottement du contacteur est évité par le fait que la bobine d'induction est encore uniquement atteinte par des valeurs de tension qui induisent un processus de commutation défini, dans lequel une première unité de détection (4) est disposée dans le commutateur (3), laquelle détecte la tension d'entrée et la transmet à une unité d'évaluation et de commande (5) qui commande ensuite l'élément de commutation (6) et dans lequel le commutateur (3) est un commutateur CA.
  2. Contacteur selon la revendication 1, caractérisé en ce que l'élément de commutation (6) est un thyristor.
  3. Contacteur selon la revendication 1, caractérisé en ce que l'élément de commutation (6) est un triac.
  4. Contacteur selon la revendication 1, caractérisé en ce que l'élément de commutation (6) est un transistor.
  5. Contacteur selon la revendication 1, caractérisé en ce que l'élément de commutation (6) est un relais.
  6. Contacteur selon la revendication 1, caractérisé en ce qu'une deuxième unité de détection (7) est disposée dans le commutateur (3), laquelle détecte la tension de bobine et la transmet à l'unité d'évaluation et de commande (5), laquelle commande ensuite l'élément de commutation (6) via les valeurs de tension évaluées des deux tensions.
EP13780335.9A 2012-12-19 2013-10-16 Contacteur disjoncteur électromagnétique Active EP2880672B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210223749 DE102012223749A1 (de) 2012-12-19 2012-12-19 Elektromagnetisches Schaltschütz
PCT/EP2013/071588 WO2014095114A1 (fr) 2012-12-19 2013-10-16 Contacteur disjoncteur électromagnétique

Publications (2)

Publication Number Publication Date
EP2880672A1 EP2880672A1 (fr) 2015-06-10
EP2880672B1 true EP2880672B1 (fr) 2017-03-22

Family

ID=49484267

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13780335.9A Active EP2880672B1 (fr) 2012-12-19 2013-10-16 Contacteur disjoncteur électromagnétique

Country Status (4)

Country Link
EP (1) EP2880672B1 (fr)
CN (1) CN204809127U (fr)
DE (1) DE102012223749A1 (fr)
WO (1) WO2014095114A1 (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219834A1 (de) * 1992-06-17 1993-12-23 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Schalters

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2110071A1 (de) * 1971-03-03 1972-09-14 Bbc Brown Boveri & Cie Wechselstromerregtes Schaltgerät
DE2601799A1 (de) * 1976-01-20 1977-07-21 Licentia Gmbh Schaltanordnung zur betaetigung eines elektromagnetsystems
DE3118416A1 (de) * 1981-05-09 1982-11-25 INSTA Elektro GmbH & Co KG, 5880 Lüdenscheid "schaltungsanordnung zum steuern fuer ein aus einem wechselstromnetz gespeistes elektromechanisches relais"
US4680562A (en) * 1985-07-29 1987-07-14 Westinghouse Electric Corp. Integral circuit interrupter with separable modules
DE4140034A1 (de) * 1991-12-05 1993-06-09 Ako-Werke Gmbh & Co Kg, 7988 Wangen, De Ansteuerschaltung fuer eine last, insbesondere bei einer haushaltsmaschine
EP0558868A1 (fr) * 1992-03-06 1993-09-08 ABUS Kransysteme GmbH & Co. KG. Arrangement pour bobine de contacteur électromagnétique
DE19516995A1 (de) * 1995-05-09 1996-11-14 Siemens Ag Schaltungsanordnung zur Ansteuerung eines Schützes
DE19731269B4 (de) * 1997-07-22 2006-02-23 Hager Electro Gmbh Vorrichtung zum Schalten von elektrischen Kontakten
DE10235297B3 (de) * 2002-08-02 2004-02-19 Moeller Gmbh Steueranordnung für einen elektromagnetischen Antrieb
DE102006053797B4 (de) * 2006-11-15 2010-04-29 Moeller Gmbh Wechselstromsteller für elektromagnetische Schaltgeräte
JP2012243590A (ja) * 2011-05-19 2012-12-10 Fuji Electric Fa Components & Systems Co Ltd 電磁接触器

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4219834A1 (de) * 1992-06-17 1993-12-23 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Ansteuerung eines elektromagnetischen Schalters

Also Published As

Publication number Publication date
WO2014095114A1 (fr) 2014-06-26
CN204809127U (zh) 2015-11-25
DE102012223749A1 (de) 2014-06-26
EP2880672A1 (fr) 2015-06-10

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