EP0001802B1 - Monostabiles elektromagnetisches Drehankerrelais - Google Patents

Monostabiles elektromagnetisches Drehankerrelais Download PDF

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Publication number
EP0001802B1
EP0001802B1 EP78101214A EP78101214A EP0001802B1 EP 0001802 B1 EP0001802 B1 EP 0001802B1 EP 78101214 A EP78101214 A EP 78101214A EP 78101214 A EP78101214 A EP 78101214A EP 0001802 B1 EP0001802 B1 EP 0001802B1
Authority
EP
European Patent Office
Prior art keywords
armature
flanks
relay
pole pieces
monostable
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
EP78101214A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0001802A1 (de
Inventor
Rolf-Dieter Kimpel
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP0001802A1 publication Critical patent/EP0001802A1/de
Application granted granted Critical
Publication of EP0001802B1 publication Critical patent/EP0001802B1/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
    • H01H51/22—Polarised relays
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit

Definitions

  • the invention relates to a monostable electromagnetic rotary armature relay with a rotary armature mounted between two free yoke legs of an electromagnet, the two ferromagnetic armature legs of which are coupled via a ferromagnetic center piece and each form a first working air gap with one of the yoke legs, furthermore with a permanent magnet arrangement firmly connected to the armature which, with the two yoke legs, forms a second working air gap which counteracts the first.
  • the armature consists of two cross-shaped bars, one of which is a bar magnet and the other a non-magnetized bar that guides the magnetic flux.
  • the relay is not suitable for use in conventional H-armature magnet systems, on the other hand, the responsiveness of this magnet system is still relatively poor.
  • the bar magnet only has a magnetic pole at both ends, and its permanent magnetic flux closes only via the yoke of the electromagnet.
  • the excitation flow on the other hand, flows solely through the soft iron rod and its air gaps. A superimposition of permanent magnetic flux and excitation flux in the air gaps therefore hardly takes place there. As a result, this known relay is not very sensitive.
  • the bar magnet cannot be adapted to different force relationships, for example the contact springs, in the relay.
  • a polarized rotating anchor system monostable (DE-AS 24 54 967).
  • a relay has a so-called H-armature with two parallel ferromagnetic webs and at least one intermediate permanent magnet. It was proposed to arrange the ferromagnetic webs offset by a certain section of their length in relation to one another in order to bring about monostable switching behavior, so that pole surfaces of pole shoes and armature webs of different sizes lie opposite one another. By reducing the pole faces at two diametrically opposed air gaps an asymmetry of the magnetic circuit is achieved, but this has to be compensated for by an increased excitation flux.
  • this measure alone does not ensure a monostable switching behavior, since the remaining, albeit smaller, pole faces prevent the armature from falling off automatically in the working position of the armature. Rather, in this case too, the monostable characteristic must be guaranteed by additional means, such as separating plates and additional springs attached on one side.
  • the object of the invention is, starting from a monostable rotary armature relay of the type mentioned, to make the local monostable characteristic usable for use in known H-armature magnet systems by constructive design of the armature and thereby to increase the response sensitivity compared to the aforementioned relay.
  • the dimensioning of the flux-carrying parts of the armature should make it possible to adapt the permanent magnetic forces acting in the working air gaps to predetermined values such as response excitation and spring forces.
  • the permanent magnet arrangement has two pole pieces, each of which is arranged parallel to an armature leg and is coupled to it via a permanent magnet, the two permanent magnets being magnetically in series via the center piece of the armature, and in that the two pole pieces are not magnetically coupled directly to the adjacent armature legs.
  • the arrangement of the pole pieces on the armature according to the invention causes these two pole pieces to lie essentially in series in the flux circle of the two permanent magnets.
  • the armature then assumes its rest position when the two pole pieces lie against the yoke legs, so that the continuous flow circuit can close via the yoke.
  • the polarity of the permanent magnets is chosen so that both are in series in the same direction over the middle part of the armature.
  • the magnetic asymmetry of this monostable relay is determined by the magnetic resistances between the ferromagnetic center piece of the armature and the two pole pieces.
  • the idea of the invention is of course also realized if a ferromagnetic intermediate web is present between the pole pieces and the middle piece instead of a continuous air gap, the magnetic resistance of which ensures sufficient asymmetry of the forces.
  • the coupling of the center piece to the two armature legs must be selected appropriately, with various possibilities, from a ferromagnetic coupling to continuous air gaps, also being considered here.
  • the ferromagnetic ankop Plunging is of course the cheapest when the anchor legs with the middle piece consist of one piece.
  • FIG. 1 shows the magnet system for a monostable rotary armature relay. It contains an excitation coil 1, the core 2 of which forms two yoke legs 3 and 4. In the middle between the ends of the yoke legs 3 and 4, an armature 6 is arranged on an axis of rotation 5, which armature consists of two armature legs 7 and 8 arranged symmetrically to the axis of rotation 5 and a ferromagnetic center piece 9. This center piece 9 is magnetically connected to the armature legs 7 and 8 in a suitable manner via the coupling surfaces 9a and 9b.
  • the armature legs 7 and 8 with the middle piece 9 can consist of an iron piece, or in another case the coupling surfaces 9a and 9b can be designed as air gaps.
  • the armature leg 7 forms a working air gap S1 with the yoke leg 3
  • the armature leg 8 forms a corresponding working air gap S 2 with the yoke leg 4.
  • Two permanent magnets 11 and 12 are used to reset the armature, which are each arranged on the armature legs 7 and 8 and each carry a pole piece 13 and 14 parallel to the associated armature leg. These pole pieces, together with the parallel armature leg, include the respective end of the associated yoke leg 3 or 4 approximately in the manner of pliers.
  • the pole piece 13 with the yoke leg 3 forms a further air gap S3 and the pole piece 14 with the yoke leg 4 forms the further air gap S4.
  • the two permanent magnets 10 and 11 are polarized so that they are magnetically in series over the center piece 9 of the armature 6.
  • FIG. 2 shows the course of the flux and the superimposition between excitation flux and permanent magnetic fluxes in a magnet system of FIG. 1.
  • o 1 means the excitation flux generated by the coil; it is drawn as a continuous line.
  • the asymmetry of the magnet system arises from the fact that in the working air gaps on the idle side, i.e. in the air gaps S3 and S4, there is always a greater continuous flow than in the working air gaps S1 and S2 on the working side of the armature.
  • the two partial flows q J 11 and ⁇ 12 of the permanent magnets add up, on the working side they subtract.
  • the magnetic resistances R1 between the center piece 19 of the armature and the pole pieces 13 and 14 determine this asymmetry. Together with the magnetic resistor R2 in the symmetry zone (area around the bearing point) of the center piece 19 and the magnetization states of the magnets 11 and 12, these magnetic resistors R1 are to be dimensioned in such a way that an optimal adaptation to the set of springs occurs.
  • the magnetic resistors R1 and R2 can be both air gaps and iron cross sections of a suitable dimension.
  • the force-path curve of the magnet system shown in FIGS. 1 and 2 is shown in FIG. 3.
  • the force P is recorded over the path s.
  • the magnet system curves are designated by m and the spring rate curve by f.
  • the set of springs is completely symmetrical, so curve f goes exactly in the middle between the rest side R and the working side A through the zero point.
  • the magnet system curve lies below the spring rate curve f; the anchor is pulled to working side A.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
EP78101214A 1977-11-09 1978-10-24 Monostabiles elektromagnetisches Drehankerrelais Expired EP0001802B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2750142 1977-11-09
DE2750142A DE2750142C2 (de) 1977-11-09 1977-11-09 Monostabiles elektromagnetisches Drehankerrelais

Publications (2)

Publication Number Publication Date
EP0001802A1 EP0001802A1 (de) 1979-05-16
EP0001802B1 true EP0001802B1 (de) 1981-04-29

Family

ID=6023371

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78101214A Expired EP0001802B1 (de) 1977-11-09 1978-10-24 Monostabiles elektromagnetisches Drehankerrelais

Country Status (7)

Country Link
US (1) US4206431A (it)
EP (1) EP0001802B1 (it)
JP (1) JPS6034773B2 (it)
AT (1) AT373721B (it)
DE (1) DE2750142C2 (it)
DK (1) DK145479C (it)
IT (1) IT1100058B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3005921A1 (de) * 1980-02-16 1981-09-03 Harting Elektronik Gmbh, 4992 Espelkamp Monostabiles drehankersystem
DE3006948A1 (de) * 1980-02-25 1981-09-10 Siemens AG, 1000 Berlin und 8000 München Polarisiertes magnetsystem
FR2520152B1 (fr) * 1982-01-20 1986-02-28 Telemecanique Electrique Electro-aimant a equipage mobile a aimant permanent a fonctionnement monostable
AT388258B (de) * 1987-05-13 1989-05-26 Schrack Elektronik Ag Monostabiles elektromagnetisches relais
DE10035173C1 (de) * 2000-07-19 2002-05-08 Matsushita Electric Works Europe Ag Magnetsystem für ein elektromagnetisches Relais
JP6168785B2 (ja) * 2012-03-30 2017-07-26 富士通コンポーネント株式会社 有極電磁継電器
CN106469630B (zh) * 2015-08-18 2019-03-12 泰科电子(深圳)有限公司 极性继电器
CN107039213A (zh) * 2017-05-24 2017-08-11 湖北师范大学 一种双稳态继电器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2825783A (en) * 1955-07-18 1958-03-04 Raymond T Moloney Polarized relay
FR1353958A (fr) * 1963-04-22 1964-02-28 App Electro Mecanique G P S A Relais électromagnétiques à aimants permanents
DE1270691B (de) * 1963-09-11 1968-06-20 Const Radioelectriques De Mont Elektromagnetisches Drehanker-Relais
DE1900668U (de) * 1964-02-01 1964-09-17 Bosch Gmbh Robert Relais mit schwenkbar gelagertem anker.
CH522285A (de) * 1970-02-20 1972-06-15 Zellweger Uster Ag Stromstoss-Schalter
US3906416A (en) * 1973-11-12 1975-09-16 Anthony E Sprando Electrical relay
DE2407184C2 (de) * 1974-02-15 1982-09-02 Schaltbau GmbH, 8000 München Elektromagnetisches Relais mit zwei Ankern
DE2454967C3 (de) * 1974-05-15 1981-12-24 Hans 8024 Deisenhofen Sauer Gepoltes elektromagnetisches Relais
FR2358006A1 (fr) * 1976-07-09 1978-02-03 Manuf Fse App Electr Dispositif formant electroaimant, tel que celui d'un relais

Also Published As

Publication number Publication date
US4206431A (en) 1980-06-03
DE2750142C2 (de) 1985-08-08
DK145479B (da) 1982-11-22
EP0001802A1 (de) 1979-05-16
AT373721B (de) 1984-02-10
DK496678A (da) 1979-05-10
IT7829394A0 (it) 1978-11-03
JPS6034773B2 (ja) 1985-08-10
DE2750142A1 (de) 1979-05-10
DK145479C (da) 1983-04-18
IT1100058B (it) 1985-09-28
JPS5475559A (en) 1979-06-16
ATA723878A (de) 1983-06-15

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