EP1577920A1 - Déclencheur électromagnétique - Google Patents

Déclencheur électromagnétique Download PDF

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Publication number
EP1577920A1
EP1577920A1 EP05101874A EP05101874A EP1577920A1 EP 1577920 A1 EP1577920 A1 EP 1577920A1 EP 05101874 A EP05101874 A EP 05101874A EP 05101874 A EP05101874 A EP 05101874A EP 1577920 A1 EP1577920 A1 EP 1577920A1
Authority
EP
European Patent Office
Prior art keywords
yoke
permanent magnet
leg
coil
magnetic
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
EP05101874A
Other languages
German (de)
English (en)
Other versions
EP1577920B1 (fr
Inventor
Stefan Seitz
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 EP1577920A1 publication Critical patent/EP1577920A1/fr
Application granted granted Critical
Publication of EP1577920B1 publication Critical patent/EP1577920B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/323—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with rotatable armature

Definitions

  • the invention relates to a trigger relay with a soft magnetic Yoke and a soft magnetic anchor and with a hard magnetic permanent magnet, wherein the yoke a yoke leg, a coil leg and a bearing leg and wherein the coil leg is a trip coil carries and the anchor around a bearing leg arranged Tilting axis is tiltable.
  • Such a trigger relay is for example by the DE 101 17 340 C1 and EP 1 324 365 A1.
  • the known cases are each one within the soft magnetic Yoke arranged hard magnetic permanent magnet with its longitudinal axis parallel to the coil leg and the bearing leg aligned with the yoke and forming a Air gap to the soft magnetic anchor attached to the yoke leg.
  • the coil leg carries a trip coil, due to their current flow generates a magnetic field.
  • the magnetic field generated by the trip coil interacts with the field of the permanent magnet in a soft magnetic Iron circle formed by the yoke and anchor is and forms a magnetic field conducting element. Will that be magnetic field of the permanent magnet by that of the trip coil weakened magnetic field, then becomes opened by the spring force of a release spring of the anchor, what it triggers.
  • EP 1 177 565 B1 z. B. in each case an electromagnetic Relay known in which called the core assembly Yoke and / or the anchor is made of a plastic, the soft magnetic particle (ferromagnetic powder) contains.
  • the electrically conductive ones can also be used Parts be made of a plastic that is an electric contains conductive powder.
  • Object of the present invention is a constructive easy to set up and easy to install trip relay to create saturation problems in the yoke and / or in the Anchor reliably avoided.
  • the trip relay according to claim 1 has a soft magnetic Yoke and a soft magnetic anchor and a hard magnetic permanent magnets, wherein the yoke a yoke leg, a coil leg and a bearing leg and wherein the coil leg is a trip coil carries and the anchor around a bearing leg arranged Tilting axis is tiltable.
  • the permanent magnet consists of a plastic material with hard magnetic particles and lies outside on the yoke leg.
  • the permanent magnet is made of a plastic-bonded Magnetic material is made and outside of the yoke leg is applied, results in a large area distributed arrangement of hard magnetic permanent magnets.
  • the plastic-bound Permanent magnet compared to the known ones Permanent magnets are magnetically weaker. Due to the lower flux density in the permanent magnet at simultaneously distributed over a large area arrangement of the hard magnetic Permanent magnets become saturation problems in soft magnetic Yoke and in soft magnetic anchor reliable avoided.
  • the soft magnetic yoke can thus be dimensioned smaller become.
  • the permanent magnet is made of a plastic-bonded Magnetic material is made and outside of the yoke leg is present, are within the scope of the invention, a variety of configurations possible. So z. B. in one embodiment the trip relay according to claim 2, the permanent magnet a Base plate for the yoke.
  • the permanent magnet forms at least partially a housing for the trip relay. Be part of the case or the whole case directly made of plastic with magnetisable (hard magnetic) particles made, so eliminates the need to be fastened in the release relay Permanent magnet.
  • the housing provides in this embodiment the permanent magnet for generating the required Magnetic field dar.
  • the housing takes over additionally to its mechanical protective function also the function of Field generation.
  • the a variant of the embodiment according to claim 3 is a arranged on the coil legs, the tripping coil bearing Spool in the housing, at least partially forms the permanent magnet integrated. This is also the Spool in the generation of the necessary magnetic field included.
  • the permanent magnet is located on at least one outer side of the yoke leg completely and on at least one outer side of the coil leg and on at least one outer side of the bearing leg at least partially.
  • the embodiments described above show the great Flexibility of the measure according to the invention, the permanent magnet from a plastic-bonded magnetic material too finished.
  • This is the permanent magnet, especially in a Production by injection molding, on production technology simple manner adaptable to the respective requirements.
  • the tripping relays illustrated in FIGS. 1 to 3 each have a soft magnetic yoke 1 and a soft magnetic Anchor 2 and a hard magnetic permanent magnet on.
  • the permanent magnet is in the trigger relay according to FIG 1 denoted by 31 and in the embodiment according to FIG 2 with 32. In the embodiment shown in FIG. 3, the permanent magnet has the reference numeral 33.
  • the yoke 1 each consists of a yoke leg 11, a Coil legs 12 and a bearing leg 13.
  • the coil leg 12 each carries a trip coil 4th
  • the armature 2 is in each case one between this and the bearing leg 13 arranged rotation axis 21 tiltable.
  • the permanent magnets 31, 32, 33 of a Plastic material with hard magnetic particles lie on the outside of the yoke leg 11 at.
  • the permanent magnet 31 forms a base plate for the Yoke 1.
  • the permanent magnet 31 at least partially a housing (not shown in FIG 1) forms for the trip relay.
  • the tripping coil 4th carries, in the housing, at least partially the permanent magnet 31 and 32 or 33 forms, is integrated.
  • the bobbin and the case are for clarity not shown in the Figures 1 to 3.
  • the permanent magnet is located 32 on an outer side of the yoke leg 11 completely. Furthermore, the permanent magnet 32 is located on an outer side of the coil leg 12 and on an outer side of the bearing leg 13 partially on.
  • the permanent magnet encloses 33 the yoke leg 11 completely. Further encloses the permanent magnet 33 the coil legs 12 and the Bearing leg 13 to a predetermined length completely.
  • FL1 is the flow line that is the magnetic Flow from the permanent magnet 31 or 32 or 33 through the coil legs 12 and the trip coil 4 and by the anchor. 2 and the bearing leg 13 back to the permanent magnet 31 and 32 and 33, respectively. So this is the Main flow for the hold function in the idle state of the trip relay.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
EP05101874A 2004-03-19 2005-03-10 Déclencheur électromagnétique Expired - Fee Related EP1577920B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004013608 2004-03-19
DE200410013608 DE102004013608A1 (de) 2004-03-19 2004-03-19 Auslöserelais

Publications (2)

Publication Number Publication Date
EP1577920A1 true EP1577920A1 (fr) 2005-09-21
EP1577920B1 EP1577920B1 (fr) 2012-10-03

Family

ID=34833204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05101874A Expired - Fee Related EP1577920B1 (fr) 2004-03-19 2005-03-10 Déclencheur électromagnétique

Country Status (2)

Country Link
EP (1) EP1577920B1 (fr)
DE (1) DE102004013608A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101657873B (zh) * 2007-04-27 2012-08-29 三菱电机株式会社 电子式过载继电器
CN102971821A (zh) * 2010-06-30 2013-03-13 伊顿公司 无弹簧的过载继电器开关
CN108074783A (zh) * 2018-01-18 2018-05-25 常熟开关制造有限公司(原常熟开关厂） 磁脱扣装置及其整定电流调整方法、开关电器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1321466A (fr) * 1962-02-05 1963-03-22 Cie De Construction Electr Perfectionnements aux relais polarisés
FR1337305A (fr) * 1962-07-02 1963-09-13 Gardy Particip App Perfectionnement apporté aux relais électriques à très haute sensibilité et ses applications
FR2276679A1 (fr) * 1974-06-24 1976-01-23 Felten & Guilleaume Schaltanl Ensemble magnetique pour relais a induit basculant
EP0042056A1 (fr) * 1980-06-13 1981-12-23 Schupa-Elektro-Gmbh + Co Kg Compensation de la température pour relais de maintien très sensibles à aimantation permanente
DE19921254A1 (de) * 1999-05-07 2001-01-04 Tyco Electronics Logistics Ag Elektromagnetisches Relais und Verfahren zu dessen Herstellung

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282182B (de) * 1963-04-26 1968-11-07 Felten & Guilleaume Ag Oester Haltemagnetausloeser hoher Empfindlichkeit mit Permanentmagnet und schichtenfoermig aufgebautem Jochkoerper
DE3531051A1 (de) * 1985-08-30 1987-03-12 Bbc Brown Boveri & Cie Fehlerstromausloeser
DE4228520C2 (de) * 1992-08-27 2000-10-26 Vacuumschmelze Gmbh Verfahren zur Herstellung von dünnwandigen kunststoffgebundenen Dauermagnetformteilen, wie zum Beispiel Schalenmagneten
DE4342129A1 (de) * 1993-12-10 1995-06-14 Abb Patent Gmbh Elektrischer Schalter
DE4420318C2 (de) * 1994-06-11 1996-04-11 Schulman A Gmbh Zusammensetzung auf Polymerbasis zur Herstellung von magnetischen und magnetisierbaren Formkörpern
DE50201560D1 (de) * 2001-12-20 2004-12-23 Siemens Ag Auslöserelais

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1321466A (fr) * 1962-02-05 1963-03-22 Cie De Construction Electr Perfectionnements aux relais polarisés
FR1337305A (fr) * 1962-07-02 1963-09-13 Gardy Particip App Perfectionnement apporté aux relais électriques à très haute sensibilité et ses applications
FR2276679A1 (fr) * 1974-06-24 1976-01-23 Felten & Guilleaume Schaltanl Ensemble magnetique pour relais a induit basculant
EP0042056A1 (fr) * 1980-06-13 1981-12-23 Schupa-Elektro-Gmbh + Co Kg Compensation de la température pour relais de maintien très sensibles à aimantation permanente
DE19921254A1 (de) * 1999-05-07 2001-01-04 Tyco Electronics Logistics Ag Elektromagnetisches Relais und Verfahren zu dessen Herstellung

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101657873B (zh) * 2007-04-27 2012-08-29 三菱电机株式会社 电子式过载继电器
CN102971821A (zh) * 2010-06-30 2013-03-13 伊顿公司 无弹簧的过载继电器开关
CN102971821B (zh) * 2010-06-30 2016-09-21 伊顿公司 无弹簧的过载继电器开关
CN108074783A (zh) * 2018-01-18 2018-05-25 常熟开关制造有限公司(原常熟开关厂） 磁脱扣装置及其整定电流调整方法、开关电器

Also Published As

Publication number Publication date
EP1577920B1 (fr) 2012-10-03
DE102004013608A1 (de) 2005-10-27

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