EP0061382A1 - Elektromagnetisches Relais mit gleichgültiger Arbeitslage - Google Patents

Elektromagnetisches Relais mit gleichgültiger Arbeitslage Download PDF

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Publication number
EP0061382A1
EP0061382A1 EP82400419A EP82400419A EP0061382A1 EP 0061382 A1 EP0061382 A1 EP 0061382A1 EP 82400419 A EP82400419 A EP 82400419A EP 82400419 A EP82400419 A EP 82400419A EP 0061382 A1 EP0061382 A1 EP 0061382A1
Authority
EP
European Patent Office
Prior art keywords
housing
coil
contact
magnetic circuit
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.)
Granted
Application number
EP82400419A
Other languages
English (en)
French (fr)
Other versions
EP0061382B1 (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
Socapex 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.)
Filing date
Publication date
Application filed by CONSTRUCTIONS ELECTRIQUES ET ELECTRONIQUES (CCEE) Cie, Socapex SA 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
Expired legal-status Critical Current

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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 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 housing, said blade being able to tilt from the first on second contact or vice versa under the action of an external magnetic field created by a permanent magnet and a control coil, disposed above the housing, said coil being provided with a magnetic circuit.
  • 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.
  • this permanent magnet notably makes it possible to considerably improve the shock immunity of such a relay, avoiding untimely tilting from one position to the other during an impact.
  • the control power generated in the coil is relatively large when the latter is provided with a usual magnetic circuit.
  • the electromagnetic relay according to the invention is characterized in that said magnetic circuit surrounds each box so as to make each box and its magnet of the coil integral and ensure the closing of the external magnetic field.
  • the base of the housing will conduct the magnetic field to ensure the closing of the external field, the cover being made of non-magnetic material so that the magnetic field can polarize the blades through this cover.
  • the relay according to the invention is characterized in that the second part of the magnetic circuit has the shape of a U, one of the branches of which is positioned under the base of the housing.
  • this second U-shaped part With such a structure of the magnetic circuit, it was found that the simple fact of adding this second U-shaped part to the magnetic circuit made it possible to increase the gain in control power by a factor of approximately 2 compared to the same circuit. magnetic not closed. Furthermore, the shape of this circuit allows to make the coil, the magnet and the housing substantially integral, which thus forms a compact assembly. Furthermore, this second part of the magnetic circuit will preferably rest on the base of the relay providing good positioning of the assembly in the relay housing.
  • the switch used in the relay according to the invention will preferably be of the type described in French application No. 80 00 308 filed on January 8, 1980 in the name of the Applicant.
  • the monostable or bistable operation of the relay according to the invention depends on the relative position of the contacts of the switch 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 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 together and form a single relay, seen from the outside, while remaining within the scope of the invention.
  • FIG. 1 there is shown a switch provided with a magnet and a control coil according to the prior art.
  • a switch 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 articulation of this blade 6 with mercury 7 is described in the above referenced patent application.
  • the base 2 is connected to a contact electrode 11.
  • a permanent magnet 14 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.
  • a relay is shown using the device described in Figure 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 in the horizontal direction as shown in this figure . The operation of this relay is identical to what has been explained with the aid of FIG. 1.
  • FIG. 3 there is shown a device similar to Figure 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 gain in power by a factor of 2.
  • FIG. 4 there is shown the device of Figure 3 mounted in a relay box identical to that described in Figure 2.
  • the same elements as those of the previous figures therefore bear the same references.
  • the U-shaped magnetic circuit 106 is supported by its arm 108 on the base 102 of the relay, while its vertical arm 107 comes into contact with the flange 111 made by the base in the vicinity of the output contact 104. This allows better mechanical fixing of the device of FIG. 3 in the relay box.
  • FIG 5 there is shown schematically 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.
  • 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 represents a relay according to the invention with two switches and a U-shaped magnetic circuit.
  • the same elements as those of the preceding 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 the transistors, in particular the 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 boxes 1 and 129.
  • An electrical insulator 122 is disposed 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.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
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 true EP0061382A1 (de) 1982-09-29
EP0061382B1 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644308A (en) * 1984-09-27 1987-02-17 La Telemecanique Electrique Variable composition switching device realizable by the assembling of modular elements

Citations (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
FR1464734A (fr) * 1964-11-12 1967-01-06 Inst Za Elektroniko In Avtomat Contacteur à aimantation permanente hermétiquement scellé et procédé de traitement de ses lamelles et de leurs couches de contact
DE1271260B (de) * 1962-07-31 1968-06-27 Siemens Ag Gepolter Schutzrohrwechselkontakt
FR2029737A1 (de) * 1969-01-31 1970-10-23 Adams & Westlake Co
EP0032331A1 (de) * 1980-01-08 1981-07-22 Socapex Schalter mit benetzten Kontakten und magnetischer Steuerung und elektrisches Relais mit einem solchen Schalter

Patent Citations (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
FR1464734A (fr) * 1964-11-12 1967-01-06 Inst Za Elektroniko In Avtomat Contacteur à aimantation permanente hermétiquement scellé et procédé de traitement de ses lamelles et de leurs couches de contact
FR2029737A1 (de) * 1969-01-31 1970-10-23 Adams & Westlake Co
EP0032331A1 (de) * 1980-01-08 1981-07-22 Socapex Schalter mit benetzten Kontakten und magnetischer Steuerung und elektrisches Relais mit einem solchen Schalter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644308A (en) * 1984-09-27 1987-02-17 La Telemecanique Electrique Variable composition switching device realizable by the assembling of modular elements

Also Published As

Publication number Publication date
EP0061382B1 (de) 1985-09-04
FR2502392B1 (de) 1984-03-23
FR2502392A1 (fr) 1982-09-24
DE3265953D1 (en) 1985-10-10

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