EP2831900A2 - Relais électromagnétique polarisé et son procédé de fabrication - Google Patents

Relais électromagnétique polarisé et son procédé de fabrication

Info

Publication number
EP2831900A2
EP2831900A2 EP13713418.5A EP13713418A EP2831900A2 EP 2831900 A2 EP2831900 A2 EP 2831900A2 EP 13713418 A EP13713418 A EP 13713418A EP 2831900 A2 EP2831900 A2 EP 2831900A2
Authority
EP
European Patent Office
Prior art keywords
pole
magnetic flux
permanent magnet
armature
relay
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
EP13713418.5A
Other languages
German (de)
English (en)
Other versions
EP2831900B1 (fr
Inventor
Jens Heinrich
Christian Mueller
Ralf Hoffmann
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.)
Phoenix Contact GmbH and Co KG
Original Assignee
Phoenix Contact GmbH and Co KG
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 Phoenix Contact GmbH and Co KG filed Critical Phoenix Contact GmbH and Co KG
Publication of EP2831900A2 publication Critical patent/EP2831900A2/fr
Application granted granted Critical
Publication of EP2831900B1 publication Critical patent/EP2831900B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H49/00—Apparatus or processes specially adapted to the manufacture of relays or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core

Definitions

  • the invention relates to a method for
  • Bumped, electromagnetic relays are in the design with three-pole permanent magnet (WO 93/23866) and with two-pole permanent magnet (US 4,912,438, US 5,153,543, US 6,670,871 Bl).
  • the electromagnet has a coil with core and pole shoes in a yoke-shaped construction.
  • a three-pole permanent magnet is this
  • Permanent magnet between the two yoke legs above the coil and arranged parallel to the coil axis. This permanent magnet can be separated from a magnetized strip and into the bobbin between the two
  • Yoke legs are inserted.
  • this is magnetically connected transversely to the coil axis with a pole in about the middle of the old core (US 4,912,438, US 5,153,543).
  • Electromagnetic relay known in which the coil, together with two ferromagnetic yokes and a permanent magnet interposed therebetween from above in a
  • Coil axis extends.
  • the plate-shaped permanent magnet with poles at the top and bottom is received in an anchor plate.
  • the electromagnet is accommodated in a two-part housing, which has a trough-shaped lower part and a box-shaped upper part, on which the fixed contacts of the switches and the rotary supports for the armature are located.
  • the movable contact springs are embedded in the insulating anchor plate. A recess in the anchor plate serves to receive the two-pole permanent magnet. Whether the permanent magnet in the
  • Anchor plate is magnetized embedded, is not disclosed in the Scriptures.
  • the disadvantage is certainly the large distance of the bipolar permanent magnet from the core of the electromagnet, resulting in a large,
  • Electromagnets due to strong, induced voltages and currents due to strong, induced voltages and currents.
  • the invention is based on the object, the
  • Magnetization of the permanent magnet succeeds without being subject to the risk of damaging the coil of the electromagnet.
  • a support member in which magnetic flux parts of the magnetic system of the relay are included including the pole pieces of the electromagnet and a bearing piece of the armature.
  • These magnetic flux parts are made of soft iron and are made by high
  • Magnetic flux parts becomes a one-piece or two-piece permanent magnet precursor into the support member
  • the carrier component still has a receiving space, in which the separately manufactured coil assembly, the
  • the invention also relates to a poled
  • electromagnetic relay comprising an electromagnet, a pole assembly with magnetic flux parts and with a
  • the electromagnet comprises a coil assembly, with the coil, core and pole shoes as a unit
  • the carrier component is preferably
  • storied and comprises a top cavity as a receiving space for the pole assembly with the magnetic flux parts and the magnetized permanent magnet and a central insertion compartment as a receiving space for the
  • Electromagnet pivotally mounted on the support member and is connected to the movable switch elements.
  • Fig. 1 is a perspective view of a first
  • Embodiment of a relay obliquely from above a longitudinal side and a narrow side with the housing cover removed a longitudinal section through the relay of the first embodiment, 3 is a perspective view of a support member obliquely from above and on a longitudinal side and an end face,
  • Fig. 4 is a perspective view of a
  • Fig. 5 is an exploded view of the items of
  • Fig. 6 shows a second embodiment of the relay in
  • Fig. 7 is a longitudinal section through the relay of Fig. 6, and
  • the electromagnetic relay is made up of a magnet system and a switch system, which
  • the magnet system includes an electromagnet consisting of a coil assembly 10 (FIG. 4) and pole pieces (FIG. 2).
  • the coil assembly 10 comprises a wound on a bobbin 5 coil 1, a ferromagnetic core 2 and ferromagnetic pole pieces 3 and 4, which form a structural unit.
  • the core 2 is integrally connected to one of the two pole pieces 3, 4 or both pole shoes.
  • To the magnet system belong still Magnetic flux parts 7, 8, 9, a permanent magnet 11 and an armature 12.
  • the magnetic flux parts 7 and 8 form the pole pieces of the electromagnet.
  • the magnetic flux part 9 forms
  • the permanent magnet 11 of the first embodiment is bipolar and between the pole piece 7 and the
  • Magnetic flux part 9 is arranged, while between the parts 8 and 9 is a magnetic flux interruption. It is also possible the arrangement of permanent magnet and
  • FIG. 4 Alignment of the poles of the permanent magnet to the pole piece 7 or 8 and the magnetic flux part 9.
  • the magnetic flux parts 7, 8, 9 and the permanent magnet 11 form a pole assembly.
  • Fig. 4 is a
  • Terminal block 6 connected to the coil assembly 10, which is not necessary in the context of the invention.
  • Terminal block 6 comprises switching signal pins 15, 16 with Abbieassieln 15 a, 16 a for immediate
  • Test contact pin 25 is formed cranked and can be clamped between terminal block 6 and pole piece 3.
  • the component shown in Fig. 4 is designed to be in a draw-like-like receiving space 42 of a
  • the storey-like carrier component 40 is also responsible for receiving the pole assembly, that is to say the magnetic flux parts 7, 8, 9 and the permanent magnet 11.
  • a niche-divided, anchor-side receiving space 41 is provided.
  • the parts 7, 8, 9 and 11 are fixed by embedding in the support member 40.
  • a fixed contact 21 is still provided, which is in electrical connection with a connecting pin 26 which is also secured in the support member 40 by embedding.
  • the switch system includes a diagnostic switch 20 and at least one load switch 30.
  • the diagnostic switch 20 includes the fixed contact 21 and a movable contact 22 which is mounted as a double contact on the forked end of a contact spring 23.
  • the contact spring 23 is fixed to the leg 12 a of the armature 12 and is actuated by this.
  • the movable contact 22 establishes the electrical connection with the terminal pin 25.
  • test contact pin 25 is embedded in the carrier component 40 parallel to the test contact pin 26
  • the load switch 30 comprises a fixed contact 31 and a movable contact 32 which sits on a contact spring 33 which is attached via a busbar 34 to the support member 40 and beyond with a
  • Load terminal pin 35 is in electrical connection.
  • the fixed contact 31 is connected to a further load terminal pin 36 in a conductive connection.
  • the mechanical connection can be made via an overstroke spring 38, as shown, or by direct connection of the ends of the rocker armature 12 and the coupling member 37.
  • the armature 12 has in addition to its two legs 12a and 12b still a curved bearing part 12c, with the anchor on the built as a bearing piece magnetic flux part 9 is seated.
  • the legs 12a, 12b of the armature 12 have different lengths and are held with different pole gap widths by spring forces.
  • spring forces are generated by the contact spring 23, the overstroke spring 38 (if present) and the contact spring 33.
  • the contact spring 23 is riveted to the leg 12a of the anchor and has
  • the overstroke spring 38 is similarly riveted to the leg 12b and also has spring extensions 38a, 38b and a mounting tab 38c on the bearing piece.
  • Attraction force in both end positions of the armature is greater than the effective spring force in the lifting direction, there is a bistable relay.
  • While the support member 40 is the main element of the housing, there is still a housing bottom 50 and a housing cover 60. As shown in FIG.
  • Carrier member 40 on its front side visible there on a guide 46 for guiding the insulating coupling member 37.
  • This guide and the top of the relay is mounted by the housing cover 60 of FIG. 1
  • a shallow cavity 45 (Fig. 2) which is adapted to receive the load contact spring 33 and its
  • Movement margin is used and is delimited by the housing bottom 50 down.
  • the bottom part 50 is the
  • Load contact pin 36 is inserted and riveted by means of the fixed contact 31 with the bottom part.
  • On the top of the housing cover 60 may be a
  • a second embodiment of the invention is shown. Similar components to the first embodiment are assigned the same reference numerals.
  • the basic structure of the relay according to the second embodiment follows the first embodiment, and therefore corresponding parts of description will not be repeated and only the differences will be discussed.
  • Permanent magnet 11 made of two sections IIa and IIb and with an interposed magnetic flux part 9 made of soft iron and forms a three-pole permanent magnet.
  • the section IIa has the stronger coercive force
  • Permanent magnet shows 11 north poles or south poles.
  • the magnetic flux part 9 imparts the adjacent polarity, for example, south pole when the permanent magnet points out north pole, and north pole when the permanent magnet faces south pole outside.
  • the bearing of the armature 12 is modified relative to the first embodiment by a cross spring 39, the mounting of the armature 12 on the Magnetic flux part 9 takes over.
  • the cross spring 39 has tabs 39a, with which it is connected to the magnetic flux part 9 by welding, also a torsion bar 39b and transverse to a support tabs 39c for supporting the armature 12.
  • cross spring 39 can still be another tab 39d attached, the is used to dampen the impact of the armature 12 on the magnetic flux part 8 and at the same time it is tensioned, which is useful in the subsequent switching of the armature 12, since the armature is then more easily detached from the magnetic flux part 8.
  • the cross spring 39 acts as
  • the second embodiment has a one-piece design of contact spring 23 and overstroke spring 38.
  • the contact spring 23 is electrically conductive and connected to the electrically conductive armature 12, which in turn via the electrically conductive spring 39 with the cross
  • electrically conductive magnetic flux part 9 is connected, which in turn in electrically conductive connection with the
  • Test contact pin 25 is.
  • an intermediate piece 8a made of sheet metal or plastic is still provided. Because of the
  • part 8a is somewhat offset by the interposition of part 8a.
  • the polarized electromagnetic relay is manufactured and assembled in a novel way.
  • the in Fig. 5 and FIG. 8 are partially assembled into assemblies, including those shown in FIG. 4
  • This coil assembly comprises at least the coil 1, the core 2 and the
  • Pole shoes 3 and 4. there is still a bobbin 5, on which a
  • Terminal block 6 is flanged over which the
  • FIGS. 5 and 8 also comprise a carrier component 40, which is adapted in accordance with the invention to the manufacturing method of the relay.
  • Carrier component 40 namely contains an armature-side
  • Magnetic flux parts 7, 8 and 9 and the permanent magnet 11 may be referred to as a pole assembly because they present to the armature 12 two outer poles and a center pole.
  • the pole assembly is mounted in the receiving space 41 of the support member 40 and fixed, for example, by molding.
  • Permanent magnet is mounted, but a permanent magnet precursor of unmagnetized, ferromagnetic alloy with rare earth share. Such precursor magnets can with extremely high coercive forces
  • the receiving space 42 for the coil assembly 10 may remain empty. This avoids that a high voltage with a strong electric current in the
  • One of these precursor magnetic sections here the section IIa, consists of a more magnetizable alloy compared to the other section IIb.
  • the stronger magnetizable portion IIa can also be made smaller than the weaker one
  • Pole assembly approximately in the order of the parts 7, IIa, 9, IIb and 8 in the receiving space 41 of the support member 40 is a magnetization in a certain direction
  • this weaker magnetic field is not sufficient to re-magnetize the partial permanent magnet IIa, but is sufficient, the weaker partial permanent magnet IIb
  • Magnetic flux parts 7 and 8 and an opposite pole on the central magnetic flux part 9. This structure forms a three-pole permanent magnet.
  • the coil assembly 10 can be safely mounted in the drawer-like receiving space 42.
  • the relays can be built very small, since one
  • Permanent magnets can produce with high coercive force.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnets (AREA)
  • Manufacture Of Switches (AREA)

Abstract

L'invention concerne un relais polarisé à électroaimant, aimant permanent bipolaire ou tripolaire (11), induit (12) et commutateur (20; 30) monté dans et sur un élément de support (40) de type étagé. L'élément de support (40) reçoit dans une cavité (41) du côté supérieur des parties de flux magnétique (7, 8, 9) et l'aimant permanent (11) qui est magnétisé, pendant que l'électroaimant se trouve encore à l'extérieur de l'élément de support (40). L'électroaimant est ensuite poussé dans un tiroir (42) de l'élément de support (40) et les parties restantes du relais sont montées.
EP13713418.5A 2012-03-30 2013-03-27 Relais électromagnétique polarisé et son procédé de fabrication Active EP2831900B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012006436.5A DE102012006436B4 (de) 2012-03-30 2012-03-30 Gepoltes elektromagnetisches Relais und Verfahren zu seiner Herstellung
PCT/EP2013/056547 WO2013144218A2 (fr) 2012-03-30 2013-03-27 Relais électromagnétique polarisé et son procédé de fabrication

Publications (2)

Publication Number Publication Date
EP2831900A2 true EP2831900A2 (fr) 2015-02-04
EP2831900B1 EP2831900B1 (fr) 2021-04-28

Family

ID=48044776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13713418.5A Active EP2831900B1 (fr) 2012-03-30 2013-03-27 Relais électromagnétique polarisé et son procédé de fabrication

Country Status (6)

Country Link
US (1) US9368304B2 (fr)
EP (1) EP2831900B1 (fr)
JP (1) JP5989225B2 (fr)
CN (1) CN104170047B (fr)
DE (1) DE102012006436B4 (fr)
WO (1) WO2013144218A2 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD770387S1 (en) * 2014-03-19 2016-11-01 Phoenix Contact Gmbh & Co. Kg Electrical connector
JP6258138B2 (ja) * 2014-07-03 2018-01-10 富士通コンポーネント株式会社 電磁継電器
JP6422249B2 (ja) * 2014-07-03 2018-11-14 富士通コンポーネント株式会社 電磁継電器
WO2016013485A1 (fr) * 2014-07-23 2016-01-28 富士通コンポーネント株式会社 Relais électromagnétique
JP6433706B2 (ja) * 2014-07-28 2018-12-05 富士通コンポーネント株式会社 電磁継電器及びコイル端子
DE102016101501B4 (de) 2016-01-28 2018-12-27 Phoenix Contact Gmbh & Co. Kg Elektromechanisches Relais und Vorrichtung zum Erkennen des Schaltzustandes eines elektromechanischen Relais
DE102016112663B4 (de) 2016-07-11 2018-04-12 Phoenix Contact Gmbh & Co. Kg Elektromechanisches Relais, Reihenklemme und elektromechanische Relaisbaugruppe
DE102016125382A1 (de) * 2016-12-22 2018-06-28 Phoenix Contact Gmbh & Co. Kg Modulare Schaltschützanordnung
BE1025465B1 (de) * 2017-08-11 2019-03-11 Phoenix Contact Gmbh & Co. Kg Verfahren zum Magnetisieren von mindestens zwei Magneten unterschiedlicher magnetischer Koerzitivfeldstärken
CN110335788A (zh) * 2019-07-09 2019-10-15 厦门宏发电声股份有限公司 一种小型化大功率磁保持继电器

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Also Published As

Publication number Publication date
CN104170047A (zh) 2014-11-26
US9368304B2 (en) 2016-06-14
EP2831900B1 (fr) 2021-04-28
US20150048909A1 (en) 2015-02-19
WO2013144218A2 (fr) 2013-10-03
JP5989225B2 (ja) 2016-09-07
DE102012006436B4 (de) 2020-01-30
CN104170047B (zh) 2017-04-05
WO2013144218A3 (fr) 2013-12-12
JP2015515097A (ja) 2015-05-21
DE102012006436A1 (de) 2013-10-02

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