EP0061382B1 - Elektromagnetisches Relais mit gleichgültiger Arbeitslage - Google Patents

Elektromagnetisches Relais mit gleichgültiger Arbeitslage Download PDF

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Publication number
EP0061382B1
EP0061382B1 EP19820400419 EP82400419A EP0061382B1 EP 0061382 B1 EP0061382 B1 EP 0061382B1 EP 19820400419 EP19820400419 EP 19820400419 EP 82400419 A EP82400419 A EP 82400419A EP 0061382 B1 EP0061382 B1 EP 0061382B1
Authority
EP
European Patent Office
Prior art keywords
switch
relay
contact
branch
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.)
Expired
Application number
EP19820400419
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English (en)
French (fr)
Other versions
EP0061382A1 (de
Inventor
Philippe Pouyez
Jacques Legrand
Gérard Holvoet
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.)
Constructions Electriques Et Electron Cie
Original Assignee
CONSTRUCTIONS ELECTRIQUES ET ELECTRONIQUES (CCEE) Cie
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Publication date
Application filed by CONSTRUCTIONS ELECTRIQUES ET ELECTRONIQUES (CCEE) Cie filed Critical CONSTRUCTIONS ELECTRIQUES ET ELECTRONIQUES (CCEE) Cie
Publication of EP0061382A1 publication Critical patent/EP0061382A1/de
Application granted granted Critical
Publication of EP0061382B1 publication Critical patent/EP0061382B1/de
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/284—Polarised relays

Definitions

  • the present invention relates to an electromagnetic relay comprising a relay box consisting of a relay base and a relay cover, in which is placed at least one switch provided with two electrical contacts disposed respectively on a support and a movable blade connected to a third electrical contact, each switch being disposed in a switch box consisting of a switch base and a switch cover made of non-magnetic material, said blade being able to tilt from the first to the second contact or vice versa under the action of an external magnetic field created by a permanent magnet and a control coil, arranged above the switch cover, each switch housing being associated with a magnet, said coil being provided of a magnetic circuit having a first part passing through the coil.
  • Such relays are known and are used in many applications. Generally, these relays are designed to operate in a particular position when it comes to relays with wet mercury contacts.
  • the relay according to the invention is characterized in that said magnetic circuit comprises a second U-shaped part comprising three branches, a first branch, a second branch extending the first and a third branch extending the second and which is fixed under said switch base which is made of material conducting the magnetic field to ensure the closing of the external magnetic field, this second U-shaped part making on the one hand each switch housing, the permanent magnet associated with it and the coil and ensuring on the other hand the closing of the external magnetic field so as to reduce the control power of the switch, the second U-shaped part of the magnetic circuit coming to rest by its second branch on the relay base , while its first branch comes into contact with a flange made by the relay base in the vicinity of an output contact passing through said relay base.
  • any type of movable blade relay disposed in a housing as well as to any type of monostable or bistable operation of said relay.
  • the monostable or bistable operation of the relay according to the invention depends on the relative position of the switch contacts and of the poles of the permanent magnet. When these are arranged symmetrically with respect to the fixed contacts of the switch, we then obtain a bistable operation, while if we shift on one side or the other said permanent magnet, we will get a return blade automatically in one position or the other.
  • the reliability of the contacts is further improved by using switches with wet contacts containing mercury or any equivalent liquid.
  • the invention obviously applies to the case where several switches are arranged in the same assembly to form a relay: in this case, the magnetic circuit according to the invention will be based on the switch housings. Also, several coils and a plurality of switches may be arranged in the same assembly and form a single relay, seen from the outside, while remaining within the scope of the invention.
  • a switch provided with a magnet and a control coil according to the prior art.
  • a switch 1 consisting of a base 2 and a cover 3 arranged thereon. Inside the base where generally prevails or a controlled atmosphere 8, are arranged two fixed contact supports 4 and 5 extended by the contacts 24 and 25 and respectively crossing the base 2 through glass beads 12 and 13 then ending with the posts 10 and 9.
  • a movable blade 6 in contact with mercury 7 can switch from contact 24 to contact 25 and vice versa.
  • the base 2 is connected to a contact electrode 11.
  • On the cover 3 of the switch 1 is disposed a permanent magnet 14 on which is placed a coil 15 supplied with current by 17 and 18 and in which is placed a magnetic circuit 16 of linear shape well known to those skilled in the art.
  • fig. 2 is shown a relay using the device described in FIG. 1.
  • the relay 100 includes a base 102 and a cover 101 as well as contact tabs, only some of which have been shown, such as 103 and 104, the device of FIG. 1 is placed horizontally as shown in this figure. The operation of this relay is identical to what has been explained with the aid of fig. 1.
  • FIG. 1 a device similar to FIG. 1, but provided with a magnetic circuit according to the invention.
  • the magnetic circuit 16 is extended by a magnetic circuit 106 having the shape of a U, the branch 107 of which is connected to 16 and is extended by the vertical branch 108 then the horizontal branch 109 which is fixed under the base 2 of the switch 1.
  • the operation of this device is strictly identical to that of the device of FIG. 1. However, it can be seen that such a structure allows a power gain of a factor of 2.
  • the contacts of the switch 1 provided with non-magnetic plates allowing repetitive operation of the relay according to the invention.
  • the electrical contacts 24 and 25 are respectively coated with an electrically conductive non-magnetic plate 113 and 112, having a slight overflow relative to said contacts.
  • the plates 112 and 113 have an identical overflow equal to e. In practice, it has been found that this distance e is preferably between and 0.05 mm and 1 mm and preferably 0.1 mm to 0.5 mm.
  • the operation of the switch provided with its plates is as follows: the movable blade 6 has its end which is for example a north pole, the contact 25 also being a north pole.
  • Fig. 6 shows a relay according to the invention with two switches and a U-shaped magnetic circuit.
  • the same elements as those in the previous figures have the same references.
  • the two housings 1 and 121 are arranged head to tail facing the magnetic core 16.
  • the housing 121 is electrically isolated from the core 16 (generally conductive) by the insulation 123 which also separates the magnet 120 from said core 16.
  • Each housing is well understood, as in the previous examples, an electrically conductive box of the type used for encapsulating transistors, in particular TO 5 type boxes, the dimensions of which make it possible to implement the invention.
  • the magnetic circuit 106 is supported by its branches 107 and 109 respectively on the base of the housings 1 and 129.
  • An electrical insulator 122 is placed between the branch 109 and the base of 121 to avoid short-circuits.
  • the covers of the housings 1 and 121 are made of non-magnetic material, the bases being of magnetic material. As before, a power gain of the order of 2 is obtained.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)

Claims (4)

1. Elektromagnetisches Relais mit einem Relaisgehäuse (100), bestehend aus einer Relaisbasis (102) und einem Relaisdeckel (101), in dem mindestens ein Schalter (1) mit zwei elektrischen Kontakten (24,25), die sich je auf einem Träger (4, 5) befinden, und mit einer beweglichen Zunge (6) angeordnet ist, die mit einem dritten Kontakt (7) verbunden ist, wobei jeder Schalter in einem Schaltergehäuse angeordnet ist, das aus einer Schalterbasis (2) und einem Schalterdeckel (3) aus nicht-magnetischem Material besteht, wobei die Zunge vom ersten zum zweiten Kontakt oder umgekehrt unter dem Einfluss eines äusseren Magnetfeldes kippen kann, das von einem Permanent-Magneten (14) und einer Steuerspule (15) erzeugt wird, die sich oberhalb des Schalterdeckels (3) befinden, wobei jedes Schaltergehäuse einem Magneten (14) zugeordnet ist und die Spule (15) mit einem Magnetkreis versehen ist, von dem ein erster Teil (16) die Spule durchquert, dadurch gekennzeichnet, dass der Magnetkreis einen zweiten, U-förmigen Teil mit drei Zweigen aufweist, nämlich einem ersten Zweig (107), der mit einem Ende des ersten Teils (16) verbunden ist, einem zweiten Zweig (108), der den ersten Zweig (107) verlängert, und einem dritten Zweig (109), der den zweiten Zweig (108) verlängert und unter der Schalterbasis (2) befestigt ist, die aus einem das Magnetfeld leitenden Material ist, um das Schliessen des äusseren Magnetfeldes zu bewirken, wobei der zweite U-förmige Teil einerseits jedes Schaltergehäuse (1), den dazugehörigen Permanent-Magneten (14) und die Spule (15) aneinander befestigt und andererseits die Schliessung des äusseren Magnetfeldes bewirkt, um so die Steuerleistung des Schalters (1) zu verringern, und wobei der zweite U-förmige Teil des Magnetkreises durch seinen zweiten Zweig (108) auf der Relaisbasis (102) aufliegt, während sein erster Zweig (107) mit einem Rand (111) in Berührung steht, den die Relaisbasis (102) in der Nähe eines Ausgangskontakts (104), der die Relaisbasis (102) durchquert, bildet.
2. Elektromagnetisches Relais nach Anspruch 1, dadurch gekennzeichnet, dass jeder elektrische Kontakt (24, 25) des Schalters (1) aus magnetischem Material mit einem Kontaktstück (112, 113) aus nicht-magnetischem Material bedeckt ist.
3. Elektromagnetisches Relais nach Anspruch 2, dadurch gekennzeichnet, dass das Kontaktstück (112, 113) aus nicht-magnetischem Material einen Abstand zwischen den festen Kontakten und der beweglichen Zunge von mindestens 0,05 mm bewirkt.
4. Elektromagnetisches Relais nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass es zwei Schalter (1, 121) aufweist, die von der gleichen Spule (15) gesteuert werden, wobei der zweite, U-förmige Teil des Magnetkreises (106) sich mit seinen zwei Seitenzweigen (107, 109) auf dem Gehäuse jedes Schalters (1, 121) abstützt und elektrisch isolierende Bauteile (122, 123) zwischen dem Magnetkreis (16, 106) und den Gehäusen angeordnet sind, um elektrische Kurzschlüsse zu vermeiden.
EP19820400419 1981-03-20 1982-03-09 Elektromagnetisches Relais mit gleichgültiger Arbeitslage Expired EP0061382B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8105659 1981-03-20
FR8105659A FR2502392A1 (fr) 1981-03-20 1981-03-20 Relais electromagnetique a position de fonctionnement indifferente

Publications (2)

Publication Number Publication Date
EP0061382A1 EP0061382A1 (de) 1982-09-29
EP0061382B1 true EP0061382B1 (de) 1985-09-04

Family

ID=9256485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820400419 Expired EP0061382B1 (de) 1981-03-20 1982-03-09 Elektromagnetisches Relais mit gleichgültiger Arbeitslage

Country Status (3)

Country Link
EP (1) EP0061382B1 (de)
DE (1) DE3265953D1 (de)
FR (1) FR2502392A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2570871B1 (fr) * 1984-09-27 1986-12-05 Telemecanique Electrique Dispositif de commutation a composition variable realisable par assemblage d'elements modulaires

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1046779B (de) * 1956-09-28 1958-12-18 Siemens Ag Gepolter Schutzrohrwechselkontakt
DE1271260B (de) * 1962-07-31 1968-06-27 Siemens Ag Gepolter Schutzrohrwechselkontakt
CA824230A (en) * 1964-11-12 1969-09-30 D. Santi John Reed switch adapted for rapid cycling
US3533025A (en) * 1969-01-31 1970-10-06 Adams & Westlake Co Flat pack relay
FR2473217A1 (fr) * 1980-01-08 1981-07-10 Socapex Interrupteur a contacts mouilles et a commande magnetique, et relais electrique comportant un tel interrupteur

Also Published As

Publication number Publication date
FR2502392B1 (de) 1984-03-23
DE3265953D1 (en) 1985-10-10
EP0061382A1 (de) 1982-09-29
FR2502392A1 (fr) 1982-09-24

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