EP1964142B1 - Vorrichtung zur lieferung von elektrischer energie an ein elektrisches elmenet mithilfe eines elektromagnetischen relais - Google Patents

Vorrichtung zur lieferung von elektrischer energie an ein elektrisches elmenet mithilfe eines elektromagnetischen relais Download PDF

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Publication number
EP1964142B1
EP1964142B1 EP06847201A EP06847201A EP1964142B1 EP 1964142 B1 EP1964142 B1 EP 1964142B1 EP 06847201 A EP06847201 A EP 06847201A EP 06847201 A EP06847201 A EP 06847201A EP 1964142 B1 EP1964142 B1 EP 1964142B1
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EP
European Patent Office
Prior art keywords
coil
power supply
moving contact
intensity
active position
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
EP06847201A
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English (en)
French (fr)
Other versions
EP1964142A2 (de
EP1964142B8 (de
Inventor
Patrick Klein
Michael Bodin
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.)
Valeo Comfort and Driving Assistance SAS
Original Assignee
Valeo Electronique et Systemes de Liaison SA
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.)
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Publication date
Application filed by Valeo Electronique et Systemes de Liaison SA filed Critical Valeo Electronique et Systemes de Liaison SA
Publication of EP1964142A2 publication Critical patent/EP1964142A2/de
Publication of EP1964142B1 publication Critical patent/EP1964142B1/de
Application granted granted Critical
Publication of EP1964142B8 publication Critical patent/EP1964142B8/de
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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 present invention relates to a device for powering an electrical component by means of an electromagnetic relay.
  • an electrical component of a motor vehicle such as, for example, a fan, a traffic light, a pump of a cooling circuit, etc.
  • a power supply device of this type thus makes it possible to control the power off or in tension of the electric member as a function of the intensity of the current flowing through the coil.
  • the coil In a conventional manner, the coil generates an electromagnetic force that increases as the intensity of the current flowing through the coil increases. Thus, by varying the intensity of the current flowing through the coil, it is possible to control the displacement of the first movable contact in the rest position or the active position.
  • the coil is formed by a set of turns made of a conductive material.
  • This set of turns has an electrical resistance which is at the origin of a joule effect heating of the coil when it is traversed by a current.
  • This heating is all the more important as the intensity of the current flowing through the coil is large.
  • the invention aims to limit the heating of the coil.
  • the subject of the invention is a device for supplying an electric member of the aforementioned type, characterized in that it comprises means for lowering the intensity of the current flowing through the coil, activated when the first moving contact is in the active position, the intensity of the lowered current remaining sufficient to maintain the first contact in the active position.
  • the electromagnetic force (and therefore the intensity of the current flowing through the coil) necessary to move the first movable contact from its rest position to its active position is greater than that necessary to maintain the first moving contact. in its active position.
  • the intensity of the current required to move the moving contact from its rest position to its active position may be twice the intensity of the current required to maintain the first movable contact in its active position.
  • FIG. 1 a power supply device according to a first embodiment of the invention. This device is designated by the general reference 10.
  • the supply device 10 is intended to electrically power an electrical member 12, for example an electric member of a motor vehicle.
  • the electrical member 12 is for example a fan, a traffic light or a pump of a cooling circuit of the vehicle.
  • the power supply device 10 comprises a first circuit 14 comprising a first power supply source 16 of the electrical component 12.
  • the first power supply source 16 is a first voltage source V 1 .
  • the device 10 also comprises means for connecting the first source 16 to the electrical member 12.
  • connection means comprise an electromagnetic relay 18.
  • the electromagnetic relay 18 is provided with a coil 20 and at least a first movable contact 22.
  • the coil 20 is intended to control the displacement of the first movable contact 22 as a function of the intensity I of the current passing therethrough.
  • the first movable contact 22 is capable of being displaced by the coil 20 between a rest position PR, in which the first source 16 is isolated from the electrical member 12, and an active position PA, in which the first source 16 is connected to the electrical member 12.
  • the power supply device 10 also comprises a second circuit 24 comprising the coil 20 and a second power supply source 26 of the coil 20.
  • the second power source 26 electric is a source of second voltage V 2 .
  • the first 16 and second 26 voltage sources are distinct.
  • the second voltage V 2 is less than or equal to the first voltage V 1 .
  • the second circuit 24 further comprises a switch 28 capable of adopting an open state, in which the second circuit 24 is open and the coil 20 is not supplied with current, and a closed state, in which the second circuit 24 is closed and the coil 20 is supplied with current.
  • This switch 28 comprises for example a conventional transistor.
  • the second source 26 of voltage V 2 is chosen to impose a current of intensity ID through the coil 20 sufficient to move the first movable contact 22 from its rest position PR to its active position PA during a first duration T 1 ( figure 6 ).
  • the feed device 10 also comprises means 30 for lowering the intensity I of the current flowing through the coil 20, these lowering means 30 being activated as soon as the first movable contact 22 is in the active position PA so as to lower the intensity of the current I.
  • the intensity of the minimum current ID sufficient to move the first movable contact 22 from its rest position PR to its active position PA is greater than the intensity of the minimum IM current sufficient to maintain the first movable contact 22 in its active position PA.
  • the intensity of the current IM is lowered so as to remain sufficient to maintain the first movable contact 22 in the active position PA during a second duration T 2 of maintaining the first movable contact 22 in its active position PA ( figure 6 ).
  • the current ID current of displacement of the first movable contact 22 has a value double the value of the intensity of the current IM holding the first movable contact 22 in its active position PA.
  • the means for lowering the intensity of the current I comprise resistive means 32.
  • the resistive means 32 may be connected in series with the coil 20 in the second circuit 24 when the first contact mobile 22 is in the active position PA.
  • the means for lowering the intensity of the current I further comprise means for activating / deactivating a branch branch 34 of the means resistive 32 depending on the position of the first movable contact 22.
  • the activation / deactivation means comprise static switching means 36 mounted between the first 14 and second 24 circuits.
  • the static switching means 36 comprise a diode 36 passing from the second circuit 24 to the first circuit 14.
  • the diode 36 and the electrical member 12 form part of the branch branch 34 of the resistive means 32.
  • the diode 36 is capable of adopting a blocked state B (represented by an open switch on the figure 5 ), in which the branch branch 34 is open and an on state P (represented by a closed switch on the Figures 2 to 4 ) in which branch branch 34 is closed.
  • the on state P of the diode 36 coincides with the rest position PR of the first movable contact 22 and the off state B of the diode 36 coincides with the active position PA of the first movable contact 22.
  • the electrical member 12 has a relatively low resistance r , of a value of the order of, for example, 1 Ohm.
  • resistive means 32 having a resistance R of a value of the order of, for example, 100 Ohm.
  • the resistor R is selected resistive means 32 adapted to lower the intensity of the current ID at an intensity of IM current sufficient to maintain the first contact 22 in the active position PA.
  • the device 10 is in a first state represented on the figure 2 in which the electrical member 12 is not powered.
  • the first movable contact 22 is in its rest position PR and the first source 16 is isolated from the electrical member 12.
  • the switch 28 is open so that the coil 20 is not supplied with current.
  • the device 10 is placed in a second state represented on the figure 3 .
  • the switch 28 is closed so that the coil 20 is supplied with current by the second power supply source 26.
  • the intensity of the current flowing through the coil 20 has the value of the intensity of the displacement current. ID.
  • the intensity of the current ID is sufficient to initiate the movement of the first movable contact 22 from its rest position PR to its active position PA.
  • the first movable contact 22 is represented while traveling on the figure 4 .
  • the device 10 is in a third transient state.
  • the device 10 After the duration T 1 has elapsed, the device 10 is in a fourth state represented on the figure 5 .
  • the first movable contact 22 is in the active position PA and the first source 16 is connected to the electrical member 12 and feeds it. Since the first voltage V 1 has a value greater than or equal to the second voltage V 2 , the diode 36 is subjected to a negative potential difference and is therefore in its off state B.
  • bypass branch 34 is open and the resistive means 32 are connected in series with the coil 20.
  • the intensity of the current I through the coil has the value IM.
  • the device 10 comprises means for activating / deactivating the branch branch 34, comprising mobile switching means 40.
  • the mobile switching means 40 are capable of adopting a first position P1 in which the bypass branch 34 is closed and a second position P2 in which the branch branch 34 is open so as not to connect or connect the resistive means, respectively. 32 in series with the coil 20.
  • the mobile switching means 40 comprise the first movable contact 22 mounted between the first 14 and second 24 circuits, the first P1 and second P2 positions being respectively the rest position PR and the active position. PA of the first mobile contact 22.
  • the first 16 and second 26 voltage sources are identical (the second voltage V 2 is equal to the first voltage V 1 ).
  • the electromagnetic relay 18 is provided with a second movable contact 42 whose displacement is also controlled by the coil 20.
  • the mobile switching means 40 comprise this second movable contact 42.
  • the first P1 and second P2 positions of the second movable contact 42 coincide respectively with the rest position PR and the active position PA of the first movable contact 22.
  • the first 16 and second 26 voltage sources may be identical or different.
  • the intensity current ID passing through the coil 22 makes it possible simultaneously to control the displacement of the first movable contact 22 from its rest position PR to its active position PA and the displacement of the second movable contact 42. from the first position P1 to the second position P2 so as to open the bypass branch 34 of the resistive means 32 and thus lower the intensity of the current flowing through the coil 20 to the value IM.

Landscapes

  • Relay Circuits (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Claims (9)

  1. Vorrichtung (10) zu r Stromversorgung eines elektrischen Elements (12), von der Art, die enthält:
    - einen ersten Schaltkreis (14), der eine erste Stromversorgungsquelle (16) aufweist,
    - Einrichtungen zum Anschluss der ersten Quelle (16) an das elektrische Element (12), die ein elektromagnetisches Relais (18) aufweisen, das mit einer Steuerspule (20) zur Verschiebung mindestens eines ersten beweglichen Kontakts (22) zwischen einer Ruhestellung (PR), in der die erste Quelle (16) vom elektrischen Element (12) isoliert ist, und einer aktiven Stellung (PA) versehen ist, in der die erste Quelle (16) an das elektrische Element (12) angeschlossen ist,
    - einen zweiten Schaltkreis (24), der die Spule (20) und eine zweite Stromversorgungsquelle (26) der Spule (20) enthält, die einen die Spule durchquerenden Strom einspeist, dessen Stärke (I) ausreicht, um den ersten beweglichen Kontakt (22) von seiner Ruhestellung (PR) in seine aktive Stellung (PA) zu verschieben,
    dadurch gekennzeichnet, dass sie Einrichtungen (30) zum Senken der Stärke (I) des die Spule (20) durchquerenden Stroms enthält, die aktiviert werden, wenn der erste bewegliche Kontakt (22) in der aktiven Stellung (PA) ist, wobei die gesenkte Stromstärke (I) ausreicht, um de n ersten beweglichen Kontakt (22) in der aktiven Stellung (PA) zu halten.
  2. Stromversorgungsvorrichtung (10) nach Anspruch 1, bei der die erste (16) und die zweite (26) Stromversorgungsquelle Quellen einer ersten (V1) bzw. einer zweiten (V2) Spannung sind, die gleich sind oder nicht.
  3. Stromversorgungsvorrichtung (10) nach Anspruch 2, bei der die Einrichtungen zum Senken (30) der Stromstärke (I) Widerstandseinrichtungen (32) enthalten, die mit der Spule (20) im zweiten Schaltkreis (24) in Reihe geschaltet werden können, wenn der erste bewegliche Kontakt (22) in der aktiven Stellung (PA) ist.
  4. Stromversorgungsvorrichtung (10) nach Anspruch 3, bei der die Einrichtungen zum Senken (30) der Stromstärke (I) Einrichtungen zur Aktivierung/Deaktivierung eines Ableitungszweigs (34) der Widerstandseinrichtungen (32) abhängig von der Stellung (PR, PA) des ersten beweglichen Kontakts (22) enthalten.
  5. Stromversorgungsvorrichtung (10) nach Anspruch 4, b e i de r die Aktivierungs-/Deaktivierungseinrichtungen statische Schalteinrichtungen (36) enthalten, die in Reihe zwischen dem ersten (14) und dem zweiten (24) Schaltkreis geschaltet sind und mit dem elektrischen Element (12) Teil des Ableitungszweigs (34) der Widerstandseinrichtungen (32) sind, wobei diese statischen Schalteinrichtungen (36) einen gesperrten Zustand (B), in dem der Ableitungszweig (34) offen ist, und einen leitenden Zustand (P) annehmen können, in dem der Ableitungszweig (34) geschlossen ist.
  6. Stromversorgungsvorrichtung (10) nach Anspruch 5, bei der die statischen Schalteinrichtungen (36) eine vom zweiten Schaltkreis (24) zum ersten Schaltkreis (14) leitende Diode (36) enthalten, so dass der leitende Zustand (P) der Diode (36) mit der Ruhestellung (PR) des ersten beweglichen Kontakts (22) zusammenfällt, und der gesperrte Zustand (B) der Diode (36) mit der aktiven Stellung (PA) des ersten beweglichen Kontakts (22) zusammenfällt.
  7. Stromversorgungsvorrichtung (10) nach Anspruch 4, b e i de r die Aktivierungs-/Dekativierungseinrichtungen bewegliche Schalteinrichtungen (40) enthalten, die Teil de s Ableitungszweigs (34) der Widerstandseinrichtungen (32) sind und zwei Stellungen annehmen können, eine erste Stellung (P1), in der der Ableitungszweig (34) geschlossen ist, und eine zweite Stellung (P2), in der der Ableitungszweig (34) offen ist.
  8. Stromversorgungsvorrichtung (10) nach Anspruch 7, bei der die beweglichen Schalteinrichtungen (40) den ersten beweglichen Kontakt (22) enthalten, der zwischen den ersten (14) und den zweiten (24) Schaltkreis montiert ist, wobei die erste (P1) und die zweite (P2) Stellung die Ruhestellung (PR) bzw. die aktive Stellung (PA) des ersten beweglichen Kontakts (22) sind.
  9. Stromversorgungsvorrichtung (10) nach Anspruch 7, bei der die beweglichen Schalteinrichtungen (40) einen zweiten beweglichen Kontakt (42) enthalten, wobei die Verschiebung des zweiten beweglichen Kontakts (42) ebenfalls von der Spule (20) gesteuert wird, wobei die erste (P1) und die zweite (P2) Stellung des zweiten beweglichen Kontakts (42) mit der Ruhestellung (PR) bzw. mit der aktiven Stellung (PA) des ersten beweglichen Kontakts (22) zusammenfallen.
EP06847201A 2005-12-22 2006-12-21 Vorrichtung zur lieferung von elektrischer energie an ein elektrisches elmenet mithilfe eines elektromagnetischen relais Active EP1964142B8 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0513171A FR2895561B1 (fr) 2005-12-22 2005-12-22 Dispositif d'alimentation electrique d'un organe electrique au moyen d'un relais electromagnetique
PCT/FR2006/051411 WO2007074302A2 (fr) 2005-12-22 2006-12-21 Dispositif d'alimentation electrique d'un organe electrique au moyen d'un relais electromagnetique

Publications (3)

Publication Number Publication Date
EP1964142A2 EP1964142A2 (de) 2008-09-03
EP1964142B1 true EP1964142B1 (de) 2012-05-16
EP1964142B8 EP1964142B8 (de) 2012-06-27

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EP06847201A Active EP1964142B8 (de) 2005-12-22 2006-12-21 Vorrichtung zur lieferung von elektrischer energie an ein elektrisches elmenet mithilfe eines elektromagnetischen relais

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EP (1) EP1964142B8 (de)
FR (1) FR2895561B1 (de)
WO (1) WO2007074302A2 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6387872B2 (ja) * 2015-03-16 2018-09-12 株式会社オートネットワーク技術研究所 リレー制御装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT986144B (it) * 1973-01-22 1975-01-20 Yokowo Seisakusho Kk Apparecchiatura di rele a corrente in particolare per antenne radio
FR2281644A1 (fr) * 1974-08-07 1976-03-05 Fligue Wladimir Ensemble voltmetrique a relais electromagnetique
FR2369675A1 (fr) * 1976-10-29 1978-05-26 Jalon Jacques Andre Anti-repetiteur a commande par impulsion

Also Published As

Publication number Publication date
FR2895561A1 (fr) 2007-06-29
FR2895561B1 (fr) 2008-03-14
EP1964142A2 (de) 2008-09-03
WO2007074302A3 (fr) 2007-08-23
WO2007074302A2 (fr) 2007-07-05
EP1964142B8 (de) 2012-06-27

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