EP0034811B1 - Polarisiertes Magnetsystem - Google Patents

Polarisiertes Magnetsystem Download PDF

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Publication number
EP0034811B1
EP0034811B1 EP81101189A EP81101189A EP0034811B1 EP 0034811 B1 EP0034811 B1 EP 0034811B1 EP 81101189 A EP81101189 A EP 81101189A EP 81101189 A EP81101189 A EP 81101189A EP 0034811 B1 EP0034811 B1 EP 0034811B1
Authority
EP
European Patent Office
Prior art keywords
permanent magnet
coil
core
sheets
magnet system
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
EP81101189A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0034811A1 (de
Inventor
Rolf-Dieter Dipl.-Phys. 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 EP0034811A1 publication Critical patent/EP0034811A1/de
Application granted granted Critical
Publication of EP0034811B1 publication Critical patent/EP0034811B1/de
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/14—Pivoting armatures
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/121—Guiding or setting position of armatures, e.g. retaining armatures in their end position
    • H01F7/122—Guiding or setting position of armatures, e.g. retaining armatures in their end position by permanent magnets

Definitions

  • the invention relates to a polarized magnet system with a coil with a coil core and with an elongated armature, which is arranged essentially parallel to the coil axis and is located approximately above the coil center and carries a permanent magnet arrangement Formation of working air gaps includes pliers.
  • Such H-anchors can only contain relatively short permanent magnets for a given total length of the coil and thus also the armature, while a substantial part of the volume between the two armatures does not have to remain free to form the air gaps. Because of the small permanent magnet volume, high-quality and therefore expensive magnet materials have to be used in order to achieve a certain performance of the magnet system.
  • the object of the invention is to design a polarized magnet system of the type mentioned in such a way that the magnet volume given. Overall dimensions can be as large as possible.
  • the aim of the magnet system is to optimize its performance with a given size.
  • this object is achieved in that the ends of the rotating armature are angled at their ends perpendicular to the coil axis in the direction of the coil core, the angled leg ends each forming the working air gap with the coil core.
  • This inventive design of the armature makes it possible to extend the permanent magnet arrangement to the end of the respective axially parallel leg piece of the armature.
  • the permanent magnet or the permanent magnet arrangement can be as long as the armature itself.
  • the permanent magnet flux can be increased with the same dimensions. This possibility can play a role in particular in the case of further miniaturization of such a magnet system, for example for relays.
  • Another advantage of the angling of the armature ends according to the invention is that the working air spah is shifted towards the coil. In this way, the control flow can be better utilized since the leakage flows are reduced.
  • the core no longer needs to be provided with long yoke legs as in the case of an H anchor system. It is sufficient, for example, if the coil core is straight and only has axially projecting pole ends on both ends of the coil. To enlarge the pole faces, short elbows can be formed in the direction of the armature.
  • the rotary anchor consists of two parallel, U-shaped sheets, between which the permanent magnet arrangement is arranged parallel to one another on both sides of the bearing with polarization of the same direction.
  • the rotary armature has two sheets lying in one plane parallel to the coil axis, at the ends of which tabs are bent parallel to the pole faces of the coil core, a flat permanent magnet arrangement covering both sheets being attached to the sheets.
  • This permanent magnet arrangement can, for example, be polarized parallel to the plane of the sheets. In this case, the permanent magnetic circuit is closed directly via the two sheets.
  • the permanent magnet arrangement can also have mutually opposite polarization directions perpendicular to the plane of the sheets. In this case, it is advisable to attach a flux guide plate over the permanent magnet arrangement.
  • the armature can furthermore consist of two armature legs arranged with a Z-shaped ferromagnetic center piece and two pole pieces coupled to the armature legs via a permanent magnet, the two permanent magnets being in series via the ferromagnetic center piece.
  • Fig. 1 shows in section a conventional H-armature, as it was used in magnetic systems according to the prior art. It essentially consists of two ferromagnetic webs 1 and 2, which are arranged parallel to one another and enclose two permanent magnets 3 and 4 between them.
  • the middle part 5 consists of non-ferromagnetic material, for example plastic, and contains a La gerbuchse 6.
  • the rotary anchor is mounted with this bearing bush on a coil, not shown, that the leg ends 1a, 2a and 1b, 2b each form working air gaps with the yoke legs 7 and 8 indicated by dashed lines.
  • the space for the yoke legs 7 and 8 in the armature has to be left out, so that only relatively little volume is available for the permanent magnets 3 and 4.
  • the magnet system according to the invention is shown in two views.
  • the coil core 11 carries the winding 12, and a bearing journal 13, on which the armature 14 is mounted, is fastened in a manner not shown.
  • This armature 14 consists of two ferromagnetic legs 15 and 16, the ends 15a, 15b and 16a and 16b of which are each angled toward the coil. They include the pole ends 11a and 11b of the coil core, which also have a small angled extension 11c and 11d to form the largest possible pole faces.
  • FIG. 4 shows a small modification in a detail from FIG. 2.
  • the pole end 11b 'of the coil core is designed as a straight extension of the core without bending.
  • the core is particularly easy to manufacture.
  • the anchor no longer has the familiar H shape, but has a sandwich-like structure.
  • the ends 15a, 15b, 16a and 16b of the leg 5 and 16 are designed in such a way that they reach the pole ends of the coil core in the shortest possible way and enclose them like pliers.
  • FIG. 5 and 6 show a further possible embodiment of the anchor, FIG. 6 showing an end view of the anchor from FIG. 5.
  • the armature 24 consists of two flat sheets 25 and 26, which are now parallel to one another in one plane. At their ends, lateral tabs 25a and 25b or 26a and 26b are bent in the direction of the coil core.
  • the flat permanent magnet 27 is not arranged between the sheets 25 and 26, but on them. It covers the entire surface of the two sheets forming the anchor legs.
  • the permanent magnet is magnetized in the embodiment according to FIGS. 5 and 6 in the transverse direction, that is to say parallel to the armature plane, so that one pole bears against one of the armature legs.
  • FIG. 5 and 6 shows an end view of the anchor from FIG. 5.
  • the permanent magnet 28 lying flat on the armature could have two mutually opposite magnetization directions perpendicular to the armature plane.
  • a flux plate 29 is expediently arranged above the permanent magnet in order to close the permanent magnet circuit and to reduce the leakage flux.
  • FIG. 8 finally shows an armature version for a monostable magnet system.
  • two armature legs 31 and 32 are connected via a ferromagnetic center piece 33 to form a Z-shaped structure which is mounted on a pin 34 in the middle part.
  • a Poi scholar37 or 38 is arranged via a permanent magnet 35 or 36.
  • the ends 31a, 32a or 37a and 38a of the armature legs and the pole pieces are angled in the direction of a core (not shown).
  • Fig. 9 shows this in a view of the anchor from the front in the direction of arrow IX.
  • the permanent magnets 35 and 36 are polarized in series in this case, so that the pole pieces 37 and 38 are always attracted to the core (not shown) in the idle state. Only in this state do the permanent magnetic circuits close. When the magnet system is excited, the armatures 31 and 32 are then attracted to the respective core ends. The monostable switching behavior is thus achieved.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
EP81101189A 1980-02-25 1981-02-19 Polarisiertes Magnetsystem Expired EP0034811B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3006948 1980-02-25
DE19803006948 DE3006948A1 (de) 1980-02-25 1980-02-25 Polarisiertes magnetsystem

Publications (2)

Publication Number Publication Date
EP0034811A1 EP0034811A1 (de) 1981-09-02
EP0034811B1 true EP0034811B1 (de) 1983-10-05

Family

ID=6095462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101189A Expired EP0034811B1 (de) 1980-02-25 1981-02-19 Polarisiertes Magnetsystem

Country Status (6)

Country Link
US (1) US4325043A (US06373033-20020416-M00071.png)
EP (1) EP0034811B1 (US06373033-20020416-M00071.png)
JP (1) JPS56133804A (US06373033-20020416-M00071.png)
BR (1) BR8101127A (US06373033-20020416-M00071.png)
DE (1) DE3006948A1 (US06373033-20020416-M00071.png)
PT (1) PT72557B (US06373033-20020416-M00071.png)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3132244C2 (de) * 1981-08-14 1983-05-19 Siemens AG, 1000 Berlin und 8000 München Polarisiertes elektromagnetisches Relais
DE3140226A1 (de) * 1981-10-09 1983-04-28 Siemens AG, 1000 Berlin und 8000 München Polarisiertes elektromagnetisches relais
DE3223867C2 (de) * 1982-06-25 1986-04-24 Siemens AG, 1000 Berlin und 8000 München Polarisiertes Relais
JPS60180466A (ja) * 1984-02-24 1985-09-14 Nippon Denso Co Ltd 回転駆動装置
EP0183867B1 (en) * 1984-12-05 1989-02-01 Sauer, Hans Relay for high-frequency circuits
US4613840A (en) * 1984-12-14 1986-09-23 Matsushita Electric Works, Ltd. Relay for high-frequency circuits
US4843360A (en) * 1987-02-05 1989-06-27 Takamisawa Electric Co., Ltd. Polarized electromagnetic relay
US4922217A (en) * 1988-06-17 1990-05-01 Hsc Controls, Inc. Torque motor with magnet armature
DE4208164A1 (de) * 1992-03-13 1993-09-16 Siemens Ag Polarisiertes elektromagnetisches relais
US6025766A (en) * 1997-04-11 2000-02-15 Siemens Energy & Automation, Inc. Trip mechanism for an overload relay
US7161104B2 (en) 2003-09-26 2007-01-09 Rockwell Automation Technologies, Inc. Trip-free PCB mountable relay configuration and method
US6949997B2 (en) * 2003-09-26 2005-09-27 Rockwell Automation Technologies, Inc. Bi-stable trip-free relay configuration
JP4424260B2 (ja) * 2005-06-07 2010-03-03 オムロン株式会社 電磁リレー
CN109786664B (zh) * 2019-02-01 2021-06-25 上海兰钧新能源科技有限公司 一种电池极片支架

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966845C (de) * 1952-03-22 1957-09-12 Siemens Ag Elektromagnetisches gepoltes Antriebssystem, insbesondere fuer Relais, Wecker od. dgl.
BE541185A (US06373033-20020416-M00071.png) * 1954-09-09
US3017474A (en) * 1960-02-09 1962-01-16 Mallory & Co Inc P R Miniature relay
US3315195A (en) * 1964-11-02 1967-04-18 Allied Control Co Electromagnetic switching relay with permanent magnetic latch means
DE2365190B2 (de) * 1973-12-29 1978-10-26 Elmeg-Elektro-Mechanik Gmbh, 3150 Peine Elektromagnetsystem
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
DE2816555A1 (de) * 1977-04-18 1978-10-19 Francaise App Elect Mesure Magnetkreisanordnung fuer einen elektromagneten fuer einen mit einem permanentmagneten als anker
JPS6022805B2 (ja) * 1977-08-23 1985-06-04 オリンパス光学工業株式会社 拘束解除用電磁石装置
DE2750142C2 (de) * 1977-11-09 1985-08-08 Siemens AG, 1000 Berlin und 8000 München Monostabiles elektromagnetisches Drehankerrelais
JPS5615522A (en) * 1979-07-18 1981-02-14 Matsushita Electric Works Ltd Electromagnetic relay

Also Published As

Publication number Publication date
JPS56133804A (en) 1981-10-20
EP0034811A1 (de) 1981-09-02
DE3006948C2 (US06373033-20020416-M00071.png) 1988-09-15
DE3006948A1 (de) 1981-09-10
PT72557B (de) 1982-03-16
BR8101127A (pt) 1981-09-01
PT72557A (de) 1981-03-01
JPS6226561B2 (US06373033-20020416-M00071.png) 1987-06-09
US4325043A (en) 1982-04-13

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