EP0221801B1 - Elektrische Fernschalter - Google Patents

Elektrische Fernschalter Download PDF

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Publication number
EP0221801B1
EP0221801B1 EP86402167A EP86402167A EP0221801B1 EP 0221801 B1 EP0221801 B1 EP 0221801B1 EP 86402167 A EP86402167 A EP 86402167A EP 86402167 A EP86402167 A EP 86402167A EP 0221801 B1 EP0221801 B1 EP 0221801B1
Authority
EP
European Patent Office
Prior art keywords
coil
bistable
auxiliary contact
remotely controlled
trip switch
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.)
Revoked
Application number
EP86402167A
Other languages
English (en)
French (fr)
Other versions
EP0221801A1 (de
Inventor
Dominique Beck
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.)
Hager Electro SAS
Original Assignee
Hager Electro SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9323791&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0221801(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hager Electro SAS filed Critical Hager Electro SAS
Priority to AT86402167T priority Critical patent/ATE99452T1/de
Publication of EP0221801A1 publication Critical patent/EP0221801A1/de
Application granted granted Critical
Publication of EP0221801B1 publication Critical patent/EP0221801B1/de
Anticipated expiration legal-status Critical
Revoked 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
    • H01H47/10—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 by switching-in or -out impedance external to the relay winding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/66—Driving arrangements between movable part of magnetic circuit and contact with lost motion

Definitions

  • the present invention relates to an improvement to electrical remote control devices such as remote control switches, comprising motor coils intended to cause, if they are supplied with electric motor current by means of a control member, the movement of a movable armature causing the closing (or opening) of switches or contacts placed in the user circuit, the coil being powered by electrical pulses whose duration is sufficient to cause the tilting of a bistable mechanism causing the closing (or opening ) of these switches or contacts placed on the operating circuit.
  • electrical remote control devices such as remote control switches, comprising motor coils intended to cause, if they are supplied with electric motor current by means of a control member, the movement of a movable armature causing the closing (or opening) of switches or contacts placed in the user circuit, the coil being powered by electrical pulses whose duration is sufficient to cause the tilting of a bistable mechanism causing the closing (or opening ) of these switches or contacts placed on the operating circuit.
  • the coils are designed and dimensioned so as to support the permanent passage of the motive electric power necessary for actuation, although only one pulse, generally of short duration, sufficient to activate the mechanism of a remote control switch and, despite this, premature aging is often observed when the device is often used.
  • patents FR-A-1,151,189, GB-A-877,036, BE-A-430,975 and DE-A-2,336,238, describe electromagnets or monostable contactors providing means allowing, after a first phase of 'actuation, to decrease the electrical power in the coil, this power remaining sufficient, however, to maintain the device concerned in its active state.
  • the present invention proposes to remedy the drawbacks of the prior art and to provide an improvement to this type of apparatus, which eliminates the risks of premature aging and which simultaneously makes it possible to reduce the weight, the bulk and the cost price. of these devices.
  • the subject of the invention is an improvement to bistable remote control switches of the type comprising one or more coils, associated with external control means. to cause an electric motor current to pass through the coil (s), and a bistable mechanism actuated by the coil (s) and incorporating a movable element capable of being moved by the coil (s), characterized in that that a mechanical clearance is interposed between the movable element (3) and an auxiliary contact (8) so that the bistable mechanism (5) and the auxiliary contact (8) are successively actuated, the latter being actuated with a determined delay , said auxiliary contact (8) being placed on the supply circuit (A1, A2) of the coil (1) in parallel with a means (9) of electric power limitation, the limited electric power sufficient to guarantee the active position during the entire duration of the pulse which caused the moving element (3) to pass into the active position, thus avoiding untimely actuations of the bistable mechanism (5) and allowing the dimensioning of the coil (s) (1) to be reduced by adapting to the passage of the resulting brief energy pulse.
  • the motor current when the motor current is applied to the coil and causes the movement of the movable element and its mechanism, the same movement causes, with an adequate delay, the opening of the auxiliary contact through which the motor current passed, so that the coil (s) are no longer supplied only by means of the only limiting means such as, for example, a resistance or a capacitance, which only authorizes the passage of a reduced power but nevertheless sufficient to maintain the armature in its position close to the coil or coils to avoid untimely actuations of the mechanism.
  • the only limiting means such as, for example, a resistance or a capacitance
  • the excitation pulse at full power of the coil is therefore limited to a very short duration, corresponding to this delay.
  • the aforementioned delay is adjusted so that the auxiliary contact does not open until the tipping point of the device has been exceeded.
  • This delay can be obtained by a simple mechanical play interposed between the mobile element and the auxiliary contact.
  • the device shown is a remote control switch comprising a coil 1 wound around a fixed magnetic frame 2, for example in the shape of a U.
  • a remote control switch comprising a coil 1 wound around a fixed magnetic frame 2, for example in the shape of a U.
  • the motor current passes through the coil 1, it tends to tilt a mobile magnetic frame 3 around a pivot axis 4 from the inactive position shown in Figure 1 to the active position shown in Figure 3.
  • the armature 3 actuates in its movement, a mechanism rod 5a which causes, during tilting in its active position , the closing (or if necessary the opening) of contact means 6, represented, for example, by two switches placed on a user electrical circuit.
  • a spring 7 or another means, not shown, tends to cause the reverse movement of the armature 3 from the active position of FIG. 3, when the coil 1 is no longer supplied with current, towards the inactive position of FIG. 1.
  • the supply circuit A1, A2 of the coil 1 has, for example on the conductor A1, an auxiliary contact 8 mechanically connected to the mechanism rod 5a and arranged so that, when the device is at the non-active state as shown in FIG. 1, this contact 8 is closed.
  • a current limiting element such as a resistor 9, is mounted in parallel at the terminals of the contact 8. This resistor could be replaced by another current limiting means such as, for example, a capacitor.
  • the value of this means 9, for example the value of the resistance is such that, taking into account the supply voltage of the circuit A1, A2, a current passing only through the resistance 9 is sufficient to maintain the armature 3 in its active position against the action of the return spring 7.
  • connection between the armature 3 and the bistable mechanism 5 is effected by means of the mechanism rod 5a comprising an oblong passage 10 disposed on the rod 5a, the dimension of this oblong passage being such that in the first part of the closing stroke, from the initial position shown in FIG. 1, the mechanism rod 5a does not cause, in its movement, the auxiliary contact 8 which remains closed during this period. It is only when the end of the armature 3 has reached approximately the end of travel on the fixed armature 2 as shown in FIG. 2, that the movement of the mobile armature 3 will cause the opening of the auxiliary contact 8.
  • the length of the oblong passage 10 and its arrangement are determined so that when the armature 3 will open the auxiliary contact 8, the mechanism 5 is already tilted beyond the position of non- return from which the tilting movement would continue, for example under the effect of simple inertia, to the position shown in Figure 3 even if, from this at the time, no current was anymore sent to the coil.
  • the operation of the device is then as follows:
  • the remote control switch is first in its inactive position in FIG. 1.
  • the circuit A1, A2 is supplied with electric motor current at a voltage V.
  • the coil being energized, will then cause the rapid tilting of the movable armature 3 towards the active position.
  • the auxiliary contact 8 is not driven and the contact means 6 are actuated by the mechanism 5 while the auxiliary contact 8 is always in the closed position allowing the passage known as supply voltage current V.
  • the continued tilting of the armature 3 causes the opening of the auxiliary contact 8. From this moment, and assuming that the voltage pulse V is extended, the coil 1 is no longer supplied only via the resistor 9 and the voltage at the terminals of the coil is, this time, limited to the value v.
  • the auxiliary contact 8 remains open and the coil remains supplied with voltage v.
  • the ratio of said voltages V / v is, for example, of the order of 4 but may be higher, the voltage v being preferably calculated to be simply sufficient to keep the armature 3 in its active position.
  • the return to the inactive position is carried out in the usual manner, either by mechanical actuation, or under the effect of a weak spring 7 which allows the reinforcement 3 to return to its position initial inactive, and from there opening (or closing) of the contact means 6, and, after a certain time determined by the oblong passage 10, closing of the contact 8.
  • the device according to the invention which has been described in relation to a remote control with movable armature but which could just as easily be described in relation to a remote control with a plunging core replacing the mobile armature, thus makes it possible to limit simply to the duration of the initial phase of tilting of the movable armature 3, the duration of the supply of the coil 1 under the driving voltage V. It is thus possible to considerably undersize the coil 1 and, consequently, reduce the price and the size of the entire device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Relay Circuits (AREA)
  • Selective Calling Equipment (AREA)
  • Brushes (AREA)
  • Transmitters (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)

Claims (5)

  1. Bistabiler Fernschalter mit einer oder mehreren Spulen (1), die mit äußeren Steuermitteln verbunden sind, um den Durchfluß eines elektrischen Steuerstroms durch die Spule bzw. Spulen (1) auszulösen, und mit einem bistabilen Mechanismus (5), der durch die Spule bzw. Spulen (1) betätigt wird und ein bewegliches Element (3) beinhaltet, das von der bzw. den Spulen (1) bewegbar ist,
    dadurch gekennzeichnet,
    daß ein mechanisches Spiel zwischen dem beweglichen Element (3) und einem Hilfskontakt (8) vorgesehen ist, so daß nacheinander der bistabile Mechanismus (5) und der Hilfskontakt (8) betätigt werden, letzterer mit einer bestimmten Verzögerung, wobei der Hilfskontakt (8) in dem Vorsorgungsstromkreis (A1,A2) der Spule (1) parallel zu einem Begrenzungsmittel (9) der elektrischen Leistung angeordnet ist, hierbei reicht die begrenzte elektrische Leistung aus, um die aktive Stellung während der Gesamtdauer des Impulses zu gewährleisten, der das bewegliche Element (3) in die aktive Stellung versetzt hat, so daß ungewollte Betätigungen des bistabilen Mechanismus (5) vermeidbar sind, und die Verkleinerung der Spule bzw. Spulen (1) durch Anpassung an den Durchfluß des kurzzeitigen Energieimpulses, der sich daraus ergibt, erlaubt.
  2. Bistabiler Fernschalter nach Anspruch 1, dadurch gekennzeichnet, daß ein Mittel (10) vorgesehen ist, das die oben genannte Betätigungsverzögerung des Mechanismus (5) bestimmt, um die Öffnung des Hilfskontaktes (8) erst zu gestatten, wenn der Nichtumkehr-Punkt der Bewegung des bistabilen Mechanismus (5) überschritten worden ist.
  3. Bistabiler Fernschalter nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das Begrenzungsmittel der elektrischen Leistung ein Widerstand (9) ist.
  4. Bistabiler Fernschalter nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß das Begrenzungsmittel der elektrischen Leistung eine Kapazität ist.
  5. Bistabiler Fernschalter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß er eine Vorrichtung mit einem Stift (5a) umfaßt, der mit dem beweglichen Element (3) und mit dem bistabilen Mechanismus (5) zusammenarbeitet und der einen länglichen Durchlaß (10) aufweist, der zur Betätigung des Hilfskontaktes (8) mit der genannten Verzögerung in bezug auf den bistabilen Mechanismus (5) vorgesehen ist.
EP86402167A 1985-10-14 1986-10-02 Elektrische Fernschalter Revoked EP0221801B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86402167T ATE99452T1 (de) 1985-10-14 1986-10-02 Elektrische fernschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8515185 1985-10-14
FR8515185A FR2588691B1 (fr) 1985-10-14 1985-10-14 Perfectionnement aux telerupteurs electriques

Publications (2)

Publication Number Publication Date
EP0221801A1 EP0221801A1 (de) 1987-05-13
EP0221801B1 true EP0221801B1 (de) 1993-12-29

Family

ID=9323791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86402167A Revoked EP0221801B1 (de) 1985-10-14 1986-10-02 Elektrische Fernschalter

Country Status (4)

Country Link
EP (1) EP0221801B1 (de)
AT (1) ATE99452T1 (de)
DE (1) DE3689468T2 (de)
FR (1) FR2588691B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040089A (en) * 1986-11-26 1991-08-13 Kabushiki Kaisha Toshiba D.C. relay with power reducing function
DE19944462C1 (de) * 1999-09-16 2001-05-31 Siemens Ag Elektromagnetisches Schaltgerät

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE430975A (de) *
FR1151189A (fr) * 1956-06-04 1958-01-24 Citroen Sa Andre électro-aimant à double régime automatique d'intensité
GB877036A (en) * 1958-10-16 1961-09-13 Crabtree & Co Ltd J A Improvements in and connected with electric contactors
DE2336238A1 (de) * 1973-07-17 1975-02-06 Bbc Brown Boveri & Cie Schuetz fuer wechsel- und gleichstromerregung
US3943416A (en) * 1974-12-18 1976-03-09 General Electric Company Electromagnetic switching device having an improved energizing circuit

Also Published As

Publication number Publication date
EP0221801A1 (de) 1987-05-13
FR2588691B1 (fr) 1990-11-30
DE3689468D1 (de) 1994-02-10
FR2588691A1 (fr) 1987-04-17
DE3689468T2 (de) 1994-07-14
ATE99452T1 (de) 1994-01-15

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