EP0089973B1 - Relais electromagnetique bistable a impulsion - Google Patents

Relais electromagnetique bistable a impulsion Download PDF

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Publication number
EP0089973B1
EP0089973B1 EP19820902814 EP82902814A EP0089973B1 EP 0089973 B1 EP0089973 B1 EP 0089973B1 EP 19820902814 EP19820902814 EP 19820902814 EP 82902814 A EP82902814 A EP 82902814A EP 0089973 B1 EP0089973 B1 EP 0089973B1
Authority
EP
European Patent Office
Prior art keywords
armature
yoke leg
free end
rotation
yoke
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
Application number
EP19820902814
Other languages
German (de)
English (en)
Other versions
EP0089973A1 (fr
Inventor
Heinrich Brungsberg
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.)
BBC Brown Boveri AG Germany
Original Assignee
Brown Boveri und Cie AG Germany
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 Brown Boveri und Cie AG Germany filed Critical Brown Boveri und Cie AG Germany
Priority to AT82902814T priority Critical patent/ATE21299T1/de
Publication of EP0089973A1 publication Critical patent/EP0089973A1/fr
Application granted granted Critical
Publication of EP0089973B1 publication Critical patent/EP0089973B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet

Definitions

  • the invention relates to a bistable electromagnetic surge relay of the type mentioned in the preamble of claim 1, as is known from US-A-2317 888.
  • a current surge relay described in DE-A-2626757 comprises three basic components, namely the magnetic drive consisting of a coil, yoke and armature, a bistable contact system and a conversion part which converts the monostable switching path of the armature of the electromagnet into the bistable switching movement of the contact system .
  • This basic principle is used in various forms in known impulse switches of various types. In these systems, the switching state of the contacts changes after a full armature stroke. The electrical energy is only required up to the end of the stroke of the armature. For the switching status of the contacts, however, it does not matter if the electrical excitation is also present for a longer period. Only the permissible heating of the coil is the limit for this.
  • the known device is relatively small, so that it can be combined with an electronic touch switch in a small housing, e.g. can be arranged in a 55 flush-mounting box for electrical installations.
  • the object of the invention is to provide a space-saving current surge relay with as few individual parts as possible, which despite its bistable switching behavior can assume a desired switching position, e.g. can be switched off without knowing the last switching position to interrupt a circuit.
  • the bistable switching behavior of the impulse relay is not impaired in any way by the invention, but it also enables the impulse relay to be given a preferred position in which it is switched on or off.
  • only the duration of the current pulse determines whether the armature initially remains in a central position and then is pulled into a preferred position by the toggle spring or whether it takes up the other of its two bistable switching positions.
  • the structure of the current surge relay according to the invention is further simplified in that the armature also serves as a movable contact part.
  • a particularly space-saving design of the impulse relay is achieved in that the free end of the second yoke leg is angled toward the first yoke leg to form a defined pole piece. This results in a parallel position of the armature for the longitudinal extension of the coil.
  • An angled portion provided at the free end of the first yoke leg can be produced in a simple manner using the stamping process and forms the pivot bearing in which the anchor foot rests.
  • the toggle spring attached to an extension of the first yoke leg presses the armature into the pivot bearing.
  • the current can be supplied in a particularly simple manner via the first yoke leg and the swivel bearing.
  • the electromagnetic current relay has a coil 1 and a coil core 2 with the yoke legs 3 and 4.
  • an armature 7 which at the same time acts as a movable contact part, is pivotably mounted.
  • the first yoke leg 3 has bends 5 at its free end with a pivot bearing 6 for the base of the armature 7, which is pressed into the pivot bearing 6 by means of a toggle spring 8 which is held on a shoulder 9 of the first yoke leg 3.
  • the free end 10 of the second yoke leg is angled toward the first yoke leg 3, whereby a defined opposite pole is formed for the armature 7.
  • Power is supplied to the armature on one yoke leg 3 via the swivel bearing 6.
  • it can also be connected directly to the armature by a flexible connection, e.g. made of stranded wire, coming from a separate connection terminal.
  • the armature 7 can act as a changeover contact as shown in FIGS. 1 and 4.
  • the armature 7 has a double contact rivet 11 which can be connected on the one hand to a stationary counter contact 12 and on the other hand to a further fixed counter contact 13.
  • a defined short-term excitation pulse e.g. a capacitor discharge
  • the free end of the armature 7 is attracted by the pole of the second yoke leg 4, thereby being thrown beyond the central position represented by the axis A due to the kinetic energy and then by the force of the rocker spring 8 against the counter contact, e.g. 13. It is therefore in its other rest position.
  • FIG. 1 facilitates understanding of the circles of effect of the invention explained with the aid of FIGS. 3 and 4, since, despite structural improvements, the core can recognize the mode of operation of conventional current surge relays.
  • the pivot bearing 6 of the armature 7 is located on the first yoke leg 3 and the pole piece of the other yoke leg 4 is on a common axis A.
  • the direction of current of the excitation can be arbitrary. Due to the fact that the magnetic tensile force exerted on the armature 7 is greater than the effective force of the toggle spring 8, the armature 7 is switched from its one rest position to the other rest position in this system for each defined excitation pulse of the coil 1.
  • the defined excitation pulse is to be provided so briefly that it has ended before the armature 7 has reached the indifferent central position represented by the axis A.
  • the magnetic force which has become effective has given the armature 7 so much kinetic energy that it is thrown over the indifferent position. Then the force of the rocker spring 8 is effective, which presses the armature 7 against the counter contact 12 or 13.
  • the axis A of the pivot bearing 6 of the armature 7 is located on one yoke leg 3 on a parallel to the axis B of the pole piece of the other yoke leg 4.
  • the anchor 7 falls into a preferred position given by the parallel axes A, B, e.g. in Figure 3 for the rest position at a fixed stop 14, whereby an exhibition can be provided.
  • a fixed contact part 12 is provided as the preferred position. It is not possible to anchor the armature 7 after an unintended permanent excitation, e.g. due to magnetic remanence fields to keep in an idifferent position. Because of the parallel axes A, B, there is a preferred position in which the armature 7 switches after the excitation has ceased. This also makes it possible to hold the armature in its indifferent position in the event of a predetermined longer excitation and thus to establish a contact opening position between two changeover contacts 12 and 13. For the formation of the parallel axes A, B, an embodiment according to FIG. 3 or the representations in FIG. 4 with beveled magnetic surfaces is possible.
  • the components of the current relay are fixedly arranged on a common insulating material plate, not shown, for example a printed circuit board. An exact fixation and, if necessary, adjustment of the electromagnetic system and the counter-contacts 12 and 13 is thus possible.
  • the current relay can be used as a switch in a wide variety of control systems, with the defined excitation energy being applied by an electronic device.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Relay Circuits (AREA)

Claims (4)

1. Relais électromagnétique bistable de petites dimensions, à commande par impulsion de courant, comportant une bobine dont le noyau (2) possède de chaque côté une branche de culasse (3, 4), les extrémités libres de ces branches formant les pôles du circuit magnétique entre lesquels s'étend l'armature (7) dont le pied est monté, de manière à permettre le pivotement, dans la région de l'extrémité libre de la première branche (3) de la culasse, cette armature trouvant ses deux positions extrêmes sous l'action d'un ressort de basculement (8), caractérisé en ce que le palier de pivotement (6) prévu à l'extrémité libre de la première branche (3) de la culasse est disposé, par rapport au pôle (10) formé sur la deuxième branche (4) de la culasse, de manière telle, et le ressort de basculement (8) attaque l'armature (7), servant en même temps de contact mobile, de manière telle que cette armature, partant d'une position médiane qu'elle occupe lors d'une impulsion d'excitation plus longue, passe à une position de commutation définie constituant une position préférentielle.
2. Relais à commande par impulsion de courant selon la revendication 1, caractérisé en ce que l'extrémité libre de la deuxième branche (4) de la culasse est coudée en direction de la première branche (3) de la culasse.
3. Relais à commande par impulsion de courant selon la revendication 1 ou 2, caractérisé en ce que la première branche (3) de la culasse présente, en son extrémité libre, une partie coudée (5) sur laquelle se trouve le palier (6) pour le pivotement du pied de l'armature (7), et en ce que le ressort de basculement (8) maintenu sur un appendice (9) de la branche de la culasse appuie l'armature (7) dans le palier de pivotement (6).
4. Relais à commande par impulsion de courant selon l'une des revendications précédentes, caractérisé en ce que l'amenée de courant à l'armature (7) s'effectue par le palier de pivotement (6) sur la première branche (3) de la culasse.
EP19820902814 1981-10-02 1982-09-27 Relais electromagnetique bistable a impulsion Expired EP0089973B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82902814T ATE21299T1 (de) 1981-10-02 1982-09-27 Bistabiles elektromagnetisches stromstossrelais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3139285 1981-10-02
DE19813139285 DE3139285A1 (de) 1981-10-02 1981-10-02 Bistabiles elektromagnetisches kraftschaltglied kleiner bauart

Publications (2)

Publication Number Publication Date
EP0089973A1 EP0089973A1 (fr) 1983-10-05
EP0089973B1 true EP0089973B1 (fr) 1986-08-06

Family

ID=6143282

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820902814 Expired EP0089973B1 (fr) 1981-10-02 1982-09-27 Relais electromagnetique bistable a impulsion

Country Status (4)

Country Link
EP (1) EP0089973B1 (fr)
JP (1) JPS58501747A (fr)
DE (1) DE3139285A1 (fr)
WO (1) WO1983001343A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3518397A1 (de) * 1985-05-22 1986-11-27 Siemens AG, 1000 Berlin und 8000 München Lageranordnung fuer den anker eines elektromagnetischen relais
FR3082353B1 (fr) 2018-06-08 2022-11-04 Langlade & Picard Dispositif mobile de basculement (f) pour relais electromagnetique monostable basse-tension (entre 110v et 400v)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2317888A (en) * 1940-12-10 1943-04-27 Signal Engineering & Mfg Co Operating circuit for electrical devices
GB643397A (en) * 1947-04-18 1950-09-20 Hg Relay Patent Ab Electromagnetically shiftable switch
FR1163270A (fr) * 1956-12-12 1958-09-24 Vaucanson Atel Relais
DE1130074B (de) * 1957-10-28 1962-05-24 Haller & Co E Umschalt-Relais mit sprungartig wirkendem Schaltmechanismus
FR1362655A (fr) * 1963-04-25 1964-06-05 Comp Generale Electricite Perfectionnements aux relais à palette
FR2079790A5 (fr) * 1970-02-12 1971-11-12 Develay Rene

Also Published As

Publication number Publication date
JPS58501747A (ja) 1983-10-13
EP0089973A1 (fr) 1983-10-05
WO1983001343A1 (fr) 1983-04-14
DE3139285A1 (de) 1983-04-21

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