EP0034811A1 - Système d'aimant polarisé - Google Patents

Système d'aimant polarisé Download PDF

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Publication number
EP0034811A1
EP0034811A1 EP81101189A EP81101189A EP0034811A1 EP 0034811 A1 EP0034811 A1 EP 0034811A1 EP 81101189 A EP81101189 A EP 81101189A EP 81101189 A EP81101189 A EP 81101189A EP 0034811 A1 EP0034811 A1 EP 0034811A1
Authority
EP
European Patent Office
Prior art keywords
armature
coil
permanent magnet
magnet system
parallel
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
EP81101189A
Other languages
German (de)
English (en)
Other versions
EP0034811B1 (fr
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/fr
Application granted granted Critical
Publication of EP0034811B1 publication Critical patent/EP0034811B1/fr
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 an iron 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-armatures 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 armature legs must 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 at the outset in such a way that the magnet volume is possible for given overall dimensions can be as big as possible.
  • the aim of the magnet system is to optimize its performance with a given size.
  • this object is achieved in that the armature legs are angled at their ends perpendicular to the coil axis in the direction of the coil core, the angled leg pieces each forming the working air gap with the 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 a further miniaturization of such a magnet system, for example for relays.
  • Another advantage of the anchoring of the armature ends according to the invention is that the working air gap 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 armature consists of two parallel, U-shaped sheets, between which the permanent magnet arrangement is arranged on both sides of the bearing with the polarization aligned in the same direction.
  • the anchor has two in one plane Sheets lying parallel to the coil axis, at the ends of which tabs are bent parallel to the pole faces of the 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 sheet metal plane. 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 sheet metal plane. In this case, it is advisable to attach a flux guide plate over the permanent magnet arrangement.
  • the armature can also 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.
  • 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 include two permanent magnets 3 and 4 between them.
  • the middle part-5 consists of non-ferromagnetic material, for example plastic, and contains a bearing bush 6.
  • the rotary armature is with this Bearing bush mounted on a spool, not shown, so 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 a relatively small volume is available for the permanent magnets 3 and 4.
  • the winder core 11 carries the winding 12, and above it a bearing journal 13 is fastened in a manner not shown, on which the armature 14 is mounted.
  • 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. In this case, 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 armature legs 15 and 16 are designed so that they reach the pole ends of the coil core in the shortest possible way and enclose them in the form of pliers.
  • FIGS. 5 and 6 Another possible embodiment for the anchor is shown in FIGS. 5 and 6, with an end face being shown in FIG. View of the anchor from Fig. 5 is shown.
  • the armature 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 armature legs 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.
  • 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 the To reduce 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 pole piece 37 or 38 is arranged on each of the armature legs 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).
  • 9 shows this in a view of the armature from the front side.
  • 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.
  • the armature legs 31 and 32 are then attracted to the respective core ends. The monostable switching behavior is thus achieved.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
EP81101189A 1980-02-25 1981-02-19 Système d'aimant polarisé Expired EP0034811B1 (fr)

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 true EP0034811A1 (fr) 1981-09-02
EP0034811B1 EP0034811B1 (fr) 1983-10-05

Family

ID=6095462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101189A Expired EP0034811B1 (fr) 1980-02-25 1981-02-19 Système d'aimant polarisé

Country Status (6)

Country Link
US (1) US4325043A (fr)
EP (1) EP0034811B1 (fr)
JP (1) JPS56133804A (fr)
BR (1) BR8101127A (fr)
DE (1) DE3006948A1 (fr)
PT (1) PT72557B (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072976A1 (fr) * 1981-08-14 1983-03-02 Siemens Aktiengesellschaft Relais électromagnétique polarisé
EP0183867A1 (fr) * 1984-12-05 1986-06-11 Sauer, Hans Relais pour circuits à haute fréquence
US4613840A (en) * 1984-12-14 1986-09-23 Matsushita Electric Works, Ltd. Relay for high-frequency circuits
EP0277833A2 (fr) * 1987-02-05 1988-08-10 Takamisawa Electric Co., Ltd. Relais électromagnétique polarisé
WO1993018534A1 (fr) * 1992-03-13 1993-09-16 Siemens Aktiengesellschaft Relais electromagnetique polarise
CN109786664A (zh) * 2019-02-01 2019-05-21 江苏烨晨智能科技有限公司 一种电池极片支架

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4922217A (en) * 1988-06-17 1990-05-01 Hsc Controls, Inc. Torque motor with magnet armature
US6025766A (en) * 1997-04-11 2000-02-15 Siemens Energy & Automation, Inc. Trip mechanism for an overload relay
US6949997B2 (en) * 2003-09-26 2005-09-27 Rockwell Automation Technologies, Inc. Bi-stable trip-free relay configuration
US7161104B2 (en) 2003-09-26 2007-01-09 Rockwell Automation Technologies, Inc. Trip-free PCB mountable relay configuration and method
JP4424260B2 (ja) * 2005-06-07 2010-03-03 オムロン株式会社 電磁リレー

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH575169A5 (fr) * 1973-12-29 1976-04-30 Elmeg
DE2454967B2 (de) * 1974-05-15 1976-12-30 Gepoltes elektromagnetisches relais
EP0001802A1 (fr) * 1977-11-09 1979-05-16 Siemens Aktiengesellschaft Relais électromagnétique monostable à armature rotative
EP0022953A1 (fr) * 1979-07-18 1981-01-28 Hans Sauer Relais électromagnétique

Family Cites Families (7)

* 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 (fr) * 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
DE2407184C2 (de) * 1974-02-15 1982-09-02 Schaltbau GmbH, 8000 München Elektromagnetisches Relais mit zwei Ankern
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH575169A5 (fr) * 1973-12-29 1976-04-30 Elmeg
DE2454967B2 (de) * 1974-05-15 1976-12-30 Gepoltes elektromagnetisches relais
EP0001802A1 (fr) * 1977-11-09 1979-05-16 Siemens Aktiengesellschaft Relais électromagnétique monostable à armature rotative
EP0022953A1 (fr) * 1979-07-18 1981-01-28 Hans Sauer Relais électromagnétique

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0072976A1 (fr) * 1981-08-14 1983-03-02 Siemens Aktiengesellschaft Relais électromagnétique polarisé
EP0183867A1 (fr) * 1984-12-05 1986-06-11 Sauer, Hans Relais pour circuits à haute fréquence
US4613840A (en) * 1984-12-14 1986-09-23 Matsushita Electric Works, Ltd. Relay for high-frequency circuits
EP0277833A2 (fr) * 1987-02-05 1988-08-10 Takamisawa Electric Co., Ltd. Relais électromagnétique polarisé
EP0277833A3 (en) * 1987-02-05 1990-05-02 Takamisawa Electric Co., Ltd. Polarized electromagnetic relay
WO1993018534A1 (fr) * 1992-03-13 1993-09-16 Siemens Aktiengesellschaft Relais electromagnetique polarise
CN109786664A (zh) * 2019-02-01 2019-05-21 江苏烨晨智能科技有限公司 一种电池极片支架
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

Also Published As

Publication number Publication date
JPS6226561B2 (fr) 1987-06-09
DE3006948C2 (fr) 1988-09-15
PT72557B (de) 1982-03-16
BR8101127A (pt) 1981-09-01
JPS56133804A (en) 1981-10-20
DE3006948A1 (de) 1981-09-10
PT72557A (de) 1981-03-01
US4325043A (en) 1982-04-13
EP0034811B1 (fr) 1983-10-05

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