EP1203389B1 - Montage pour un appareil de commutation electromagnetique - Google Patents

Montage pour un appareil de commutation electromagnetique Download PDF

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Publication number
EP1203389B1
EP1203389B1 EP00963898A EP00963898A EP1203389B1 EP 1203389 B1 EP1203389 B1 EP 1203389B1 EP 00963898 A EP00963898 A EP 00963898A EP 00963898 A EP00963898 A EP 00963898A EP 1203389 B1 EP1203389 B1 EP 1203389B1
Authority
EP
European Patent Office
Prior art keywords
current
circuit
drive coil
switching
energy store
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
Application number
EP00963898A
Other languages
German (de)
English (en)
Other versions
EP1203389A1 (fr
Inventor
Norbert Mitlmeier
Bernhard Streich
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1203389A1 publication Critical patent/EP1203389A1/fr
Application granted granted Critical
Publication of EP1203389B1 publication Critical patent/EP1203389B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H01H47/043—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current making use of an energy accumulator

Definitions

  • the present invention relates to a circuit for a electromagnetic switching device with at least one drive coil, the one when a pulling current is applied Contact arrangement of the electromagnetic switching device actuated and when subsequently subjected to a holding current, which is smaller than the pull-in current, the contact arrangement keeps pressed, with a current limiter on the input side with a power supply and on the output side with the Drive coil is connected and outputs a limiter current.
  • Electromagnetic switching devices i.e. contactors and relays, take a high power supply when switching on Starting current.
  • the pull-in current is, among other things, from the one present Supply voltage dependent.
  • the electromagnetic switching device a current limiter to subordinate the starting current regardless of the supply voltage to the minimum possible Value limited. Nevertheless, this is still minimal Starting current required, which has a very high value. Especially with large shooters due to the high Current pollution can even affect the grid.
  • the object of the present invention is a To create circuitry for an electromagnetic switching device, with which on the one hand the drive coil with certainty the required starting current can be supplied, on the other hand the current drawn from the power supply is considerably lower is.
  • the task is based on the state described at the beginning the technology - solved in that the limiter current is smaller than the starting current is that between the current limiter and the drive coil, an energy storage device is arranged and that a switching element between the energy store and the drive coil is arranged, the energy content of the energy storage recorded and the energy storage only on the Drive coil turns on when the energy storage with a sufficient for actuating the contact arrangement Energy content is applied.
  • the load on the power supply is less than the starting current relatively low. Because of the storage of energy in the energy storage is the one for switching the switching device required energy available. Because of the switching element prevents the stored energy from becoming one Time is switched through to the drive coil at which no safe switching of the switching device is guaranteed yet is.
  • the energy store can be of any type.
  • an electrical energy storage is used, thus an accumulator or in particular a capacitor.
  • the operational safety of the electromagnetic switching device is increased significantly when the energy storage device reaches a maximum Has energy content and the maximum energy content for at least two successive actuations of the contact arrangement sufficient.
  • the wiring is universal for various electromagnetic switching devices can be used which require different holding currents.
  • the limiter current can be set such that that it is slightly larger than the holding current.
  • the adjustability of the limiter current can, for example can be achieved in that the current limiter is a charging switching element with adjustable switching ratio.
  • the switching ratio can be set, for example done by pulse width modulation.
  • the charging switching element has a choke with an anti-parallel is connected upstream free-wheeling diode No abrupt changes in current on the supply side.
  • the circuit is for different electromagnetic switching devices with different Tightening currents adjustable.
  • a switching signal can be supplied to the switching element is and the switching element only the energy storage
  • the switching signal is applied to the drive coil, it is possible to pre-charge the energy storage and when the switching signal is present, the contact arrangement immediately to operate.
  • the wiring is universal both when supplying with Can be used both directly and with AC power.
  • the electromagnetic switching device 1 shows an electromagnetic switching device 1 Drive coil 2 and a contact arrangement 3.
  • the electromagnetic switching device 1 is the electromagnetic switching device 1 as Contactor trained. But it could also be designed as a relay his.
  • the contact arrangement 3 When a drive current 2 A is applied to the drive coil 2, the contact arrangement 3 is actuated. After the contact arrangement 3 has been actuated, the drive coil 2 can be subjected to a holding current I H which is smaller than the starting current I A in order to keep the contact arrangement 3 actuated. If the drive coil 2 is supplied with a current which is less than the holding current I H , the contact arrangement 3 changes into the unactuated state. A renewed actuation of the contact arrangement 3 is then only possible again by applying the starting current I A to the drive coil 2.
  • the switching device 1 is preceded by a coil current control 4 which regulates the current flowing through the drive coil 2 to the starting current I A , the holding current I H or zero. Without further measures, the circuit described so far would nevertheless cause a high current load of a supply network with the starting current I A when the contact arrangement 3 is actuated.
  • the coil current control 4 upstream of a current limiter 5.
  • the current limiter 5 is connected on the input side to a power supply, which has a supply voltage U: output side is the current limiter 5 on other components which will be discussed in more detail below with the coil current control 4 and thus indirectly connected to the drive coil 2.
  • the current limiter 5 is controlled in such a way that it outputs a limiter current I L which is less than the starting current I A.
  • the limiter current I L is slightly larger than the holding current I H , e.g. B. five to 10 percent larger.
  • the limiter current I L is used to charge an energy store 6, which is arranged between the current limiter 5 and the drive coil 2 or the coil current control 4. According to FIG. 1, the energy store 6 is designed as a storage capacitor 6.
  • a switching element 7 is arranged in the coil current control 4.
  • the energy content of the energy store 6 detected.
  • the switching element 7 then switches the energy storage device 6 to the drive coil 2 or the coil current control 4 by when the energy storage 6 is acted upon with an energy content that for a Operating the contact arrangement 3 is sufficient.
  • the energy store 6 When the energy store 6 is designed as a storage capacitor 6, the energy content of the energy store 6 is given directly by the capacitance of the storage capacitor 6 and a storage voltage U s dropping across the storage capacitor 6. In this case, only the memory voltage must U s to an externally predetermined and adjustable switching threshold U S * compared. In this case, the switching element 7 switches the energy store 6 through to the drive coil 2 when the storage voltage U s is greater than or equal to the switching threshold U s *.
  • the circuit is connected to a supply voltage U supplied.
  • the maximum energy content of the energy storage 6 is in training as a storage capacitor 6 thus by its capacity and the supply voltage U certainly.
  • the capacitance of the storage capacitor is preferably 6 dimensioned such that the energy content of the storage capacitor 6 for at least two successive ones Actuations of the contact arrangement 3 is sufficient.
  • the current limiter 5 has a charging switching element 8 which is controlled by a control circuit 9.
  • the charging switching element 8 is thus switched through and blocked alternately.
  • the ratio between switching time and blocking time indicates the switching ratio.
  • the switching ratio can be set, for example, by pulse width modulation.
  • a choke 10 is arranged upstream of the current limiter 5.
  • the Choke 10 is connected in parallel with a freewheeling diode 11. This results in a more even current load on the Supply network because the choke limits current changes.
  • the switching device 1 is actuated by applying the supply voltage U.
  • the switching device 1 is actuated by applying the supply voltage U.
  • the switching element 7 only switches the energy store 6 through to the drive coil 2 or the coil current control 4 when both the energy store 6 has sufficient energy content and the switch-through signal S is present. In this case, it is possible to pre-charge the energy store 6.
  • the current limiter 5 together with choke 10 and Free-wheeling diode 11, a rectifier 12 with a backup capacitor 13 upstream.
  • the wiring is optionally available with DC voltage or can be supplied with AC voltage.
  • the coil current control 4 described in connection with FIG. 1 can be omitted. This is because after the energy store 6 has been discharged, the current supplied to the drive coil 2 inevitably drops to the limiter current I L. If the limiter current I L is slightly larger than the holding current I H and the energy content of the energy store 6 is dimensioned sufficiently small, the current limiter 5 also acts as a coil current control. A separate coil current control 4 is then no longer necessary.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)

Claims (10)

  1. Montage pour un appareil commutateur électromagnétique (1), comportant au moins une bobine d'entraínement (2), qui, lorsqu'un courant d'actionnement (IA) est appliqué, actionne un dispositif de contact (3) de l'appareil commutateur électromagnétique (1) et qui, lorsqu'un courant de maintien (IH) inférieur au courant d'actionnement (IA) est ensuite appliqué, maintient actionné le dispositif de contact (3), et un limiteur de courant (5), qui est relié en entrée à une alimentation en courant et en sortie à la bobine d'entraínement (2) et qui délivre un courant limiteur (IL),
       dans lequel le courant limiteur (IL) est inférieur au courant d'actionnement (IA), dans lequel un dispositif de stockage d'énergie (6) est placé entre le limiteur de courant (5) et la bobine d'entraínement (2) et dans lequel un élément de connexion (7) est placé entre le dispositif de stockage d'énergie (6) et la bobine d'entraínement (2), lequel élément de connexion détecte le contenu énergétique du dispositif de stockage d'énergie (6) et ne connecte le dispositif de stockage d'énergie (6) à la bobine d'entraínement (2) que lorsque le dispositif de stockage d'énergie (6) est alimenté avec un contenu énergétique suffisant pour un actionnement du dispositif de contact (3).
  2. Montage selon la revendication 1, caractérisé par le fait que le dispositif de stockage d'énergie (6) est conçu comme un condensateur de stockage (6).
  3. Montage selon la revendication 1 ou 2, caractérisé par le fait que le dispositif de stockage d'énergie (6) a un contenu énergétique maximal et que le contenu énergétique maximal suffit pour au moins deux actionnements successifs du dispositif de contact (3).
  4. Montage selon la revendication 1, 2 ou 3, caractérisé par le fait que le courant limiteur (IL) est réglable.
  5. Montage selon la revendication 4, caractérisé par le fait que le limiteur de courant (5) comporte un élément de commutation de charge (8) avec rapport de commutation réglable.
  6. Montage selon la revendication 5, caractérisé par le fait que le réglage du rapport de commutation s'effectue via une modulation de largeur d'impulsion.
  7. Montage selon la revendication 5 ou 6, caractérisé par le fait qu'une bobine de self (10) avec une diode de roue libre (11) montée tête-bêche est montée du côté amont de l'élément de commutation de charge (8).
  8. Montage selon l'une des revendications précédentes, caractérisé par le fait que l'élément de connexion (7) connecte le dispositif de stockage d'énergie (6) à la bobine d'entraínement (2) si un seuil de commutation (US*) est atteint et que le seuil de commutation (US*) est réglable.
  9. Montage selon l'une des revendications précédentes, caractérisé par le fait qu'un signal de connexion (S) peut être envoyé à l'élément de connexion (7) et que l'élément de connexion (7) ne connecte le dispositif de stockage d'énergie (6) à la bobine d'entraínement (2) qu'en présence du signal de connexion (S).
  10. Montage selon l'une des revendications précédentes, caractérisé par le fait qu'un redresseur (12) est monté du côté amont du limiteur de courant (5).
EP00963898A 1999-08-12 2000-08-11 Montage pour un appareil de commutation electromagnetique Expired - Lifetime EP1203389B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19938112 1999-08-12
DE19938112 1999-08-12
PCT/DE2000/002707 WO2001013396A1 (fr) 1999-08-12 2000-08-11 Montage pour un appareil de commutation electromagnetique

Publications (2)

Publication Number Publication Date
EP1203389A1 EP1203389A1 (fr) 2002-05-08
EP1203389B1 true EP1203389B1 (fr) 2003-10-22

Family

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Family Applications (1)

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EP00963898A Expired - Lifetime EP1203389B1 (fr) 1999-08-12 2000-08-11 Montage pour un appareil de commutation electromagnetique

Country Status (4)

Country Link
EP (1) EP1203389B1 (fr)
CN (1) CN1369100A (fr)
DE (1) DE50004180D1 (fr)
WO (1) WO2001013396A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004038527A1 (de) * 2004-08-07 2006-03-16 Audi Ag Schaltungsanordnung für Kraftfahrzeuge
US7903383B2 (en) 2007-07-09 2011-03-08 Smc Kabushiki Kaisha Solenoid valve driving circuit and solenoid valve

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2455569B (en) * 2007-12-14 2010-02-17 Renium Ltd Electro-mechanical actuator
DE102008045149B4 (de) * 2008-09-01 2016-03-31 Phoenix Contact Gmbh & Co. Kg Schaltungsanordnung zum Anschließen an einen fehlersicheren Ausgang einer Steuerung
DE102010030693A1 (de) * 2010-06-30 2012-01-05 Bayerische Motoren Werke Aktiengesellschaft Schaltungsanordnung für ein Kraftfahrzeug und Verfahren zum Betreiben der Schaltungsanordnung
CN104064403B (zh) * 2013-03-22 2016-05-04 海洋王（东莞）照明科技有限公司 一种降低继电器功耗的控制电路

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716490A (en) * 1987-04-03 1987-12-29 George Alexanian Power saving module
DE19617110A1 (de) * 1996-04-19 1997-10-23 Siemens Ag Schaltungsanordnung zum Betrieb eines Elektromagneten

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004038527A1 (de) * 2004-08-07 2006-03-16 Audi Ag Schaltungsanordnung für Kraftfahrzeuge
US7903383B2 (en) 2007-07-09 2011-03-08 Smc Kabushiki Kaisha Solenoid valve driving circuit and solenoid valve

Also Published As

Publication number Publication date
DE50004180D1 (de) 2003-11-27
CN1369100A (zh) 2002-09-11
EP1203389A1 (fr) 2002-05-08
WO2001013396A1 (fr) 2001-02-22

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