EP0147681B1 - Polarisiertes elektromagnetisches Relais - Google Patents

Polarisiertes elektromagnetisches Relais Download PDF

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Publication number
EP0147681B1
EP0147681B1 EP84114716A EP84114716A EP0147681B1 EP 0147681 B1 EP0147681 B1 EP 0147681B1 EP 84114716 A EP84114716 A EP 84114716A EP 84114716 A EP84114716 A EP 84114716A EP 0147681 B1 EP0147681 B1 EP 0147681B1
Authority
EP
European Patent Office
Prior art keywords
coil
relay
armature
contact
basic body
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
EP84114716A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0147681A1 (de
Inventor
Helmut Dipl.-Ing. Schedele
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 EP0147681A1 publication Critical patent/EP0147681A1/de
Application granted granted Critical
Publication of EP0147681B1 publication Critical patent/EP0147681B1/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
    • H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature
    • H01H51/2245—Armature inside coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5805—Connections to printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements

Definitions

  • the invention relates to a polarized relay with a base body, a coil with coil body and winding attached to the base body, a rod-shaped armature, which is arranged inside the coil body approximately along the coil axis and is supported on one side in the area of a first coil flange, and has a permanent magnet arrangement with two pole plates.
  • Such a relay is known from DE-C-3 132 244.
  • the system described there is very sensitive and has the particular advantage that a corresponding adjustment of the four-pole permanent magnet system enables both a monostable and a bistable switching characteristic to be achieved without any design changes, the response values being able to be obtained within a very narrow tolerance range.
  • the system described there is particularly suitable for very small relays with more than one changeover contact, and a very compact construction is possible.
  • the arrangement of the four-pole permanent magnet over the coil with simultaneous coverage of the contact elements by the pole plates or yokes is very useful for these relays for a compact structure.
  • the object of the invention is to modify and develop a polarized relay of the type mentioned while maintaining the advantageous properties of the known magnet system so that particularly high contact forces can be achieved even at high ambient temperatures for switching large currents and that simple construction is possible in a compact design is and at the same time large insulating distances between the magnet system and the contact elements can be achieved.
  • the permanent magnet arrangement lying on two sides of the coil facing away from one another, each has an arrangement of a pole plate, a narrow section of the flux plate arranged parallel to it and an intermediate space for a two-pole permanent magnet, at least on one side of the coil body a permanent magnet is provided in this space, that the armature with its mounted end is mounted in a recess of the section of the flux plate perpendicular to the coil axis and that in addition to the coil body and the contact connection elements also the flux plate, the two pole plates and the permanent magnet (s ) are plugged into recesses in the base body.
  • the magnetic circuit is improved in that the armature is mounted directly in the flow plate, so that the bearing air gap is reduced to a minimum.
  • the magnet system is structurally modified compared to the known magnet system in such a way that the permanent magnet arrangement is laid into the base body on both sides of the coil, as a result of which the individual parts can be plugged in easily, good insulation through appropriate design of the base body and a compact overall construction of the Relays are possible.
  • the permanent magnet arrangement has been divided into two parts on both sides of the coil.
  • a relatively large magnet length is available in addition to the coil.
  • Alnico magnets can be used which, compared to ceramic magnets, require a greater length in the direction of polarization, but are much less temperature-dependent.
  • the relay therefore maintains high contact forces even when used under high ambient temperatures - in the order of up to 125 ° C.
  • the pole plates are arranged in the same way as in the known system and angled inwards towards the armature.
  • the two permanent magnets are not arranged as seen from the coil on the outside of the pole plates or yokes, but on the side facing the coil, so that the coil lies between two layers of pole plate, permanent magnet and flux plate section.
  • the two permanent magnets which are polarized in opposite directions, can be adjusted independently of one another are so that both a bistable switching behavior and a monostable switching behavior can be achieved by asymmetrical adjustment.
  • a special embodiment is also conceivable in which the permanent magnet on one side of the coil is completely demagnetized or is omitted at all. In this case, the space between the pole plate and the flux plate section can be bridged ferromagnetically, the relay receiving a monostable switching behavior.
  • both the coil body and the permanent magnets, the pole plates and the flux plate are each fastened next to one another in the base body by insertion. Since this construction should be particularly suitable for switching high currents, it is expedient to design this base body as a housing, which encloses the magnet system mentioned both on the bottom side and with four side walls, only one opening for the armature or one of the armature actuable contact slide is left open.
  • the bottom side is expediently cut out in the region of the coil, so that the entire depth of the base body is available for the coil winding within an attached cap.
  • the contact elements are also arranged in the base body, but separately from the housing surrounding the magnet system.
  • the base body expediently forms a further chamber which encloses the contact elements and which has slots on the side for inserting the contact connection elements.
  • the relay has at least one fixed contact element and one movable contact element.
  • a changeover contact or the arrangement of more than one contact pair or changeover contact is also possible, for example by arranging one contact pair on each side of the magnet system.
  • a contact actuation slide could be articulated in its middle part on the armature and actuate a movable contact element with its two ends.
  • the movable contact element in the form of a contact spring is attached to a rigid connection element anchored in the base body. The rest position of such a contact spring can be determined by a stop formed in the housing or by an adjustable extension of the associated connection element.
  • a movable contact spring can also be attached to an extension of the armature.
  • the contact spring is designed as a contact bridge or connected to a connection element via a flexible feed line.
  • a contact actuator is at the free end of the armature, i.e. coupled to the end opposite the bearing.
  • the magnet system can also be arranged such that the armature with its mounted end penetrates the flux plate and has an angled extension in the extension of this end, which actuates a contact spring indirectly or directly.
  • Fig. 1 shows the principle of the magnet system for a relay according to the invention.
  • An elongated, rod-shaped armature 2 is arranged in a coil 1, which is only indicated schematically.
  • a permanent magnet 3 or 4 is arranged on both sides of the coil, the polarization of which is directed between a pole plate 5 or 6 and a narrow section 7a or 7b of a flux plate 7.
  • the two magnets have opposite polarization directions.
  • the two pole plates 5 and 6 each have inwardly angled sections 5a and 6a on the mutually facing edges, which form mutually parallel pole surfaces. In the working air gap thus formed, the free end 2a of the armature 2 can be switched.
  • the opposite end 2b of the armature 2 is mounted in a section 7c of the flux plate 7 perpendicular to the coil axis, the armature resting in a recess 7d, so that a good transition of the magnetic flux between the flux plate 7 and the armature 2 is ensured.
  • the permanent magnets 3 and 4 and the flux plate sections 7a and 7b are thus arranged on both sides of the coil and attached to the pole plates 5 and 6 on the side to which the pole surface sections 5a and 6a are also angled. This results in a flat structure of the magnet system, so that it can be used in a compact body.
  • a bobbin 12 with a winding 13 is arranged in a base body 11, a rod-shaped armature 14 being arranged approximately along the axis in the axial cavity 12a of the bobbin.
  • a permanent magnet 15 or 16 is arranged, on the opposite polar surfaces of which a pole plate 17 or 18 abuts on one side.
  • pole plates 17 and 18 lie on the pole faces in a common plane and are provided in the region of the coil flange 12b with inwardly angled sections 17a and 18a which enclose the free end 14a of the armature between them and in this way form a working air gap 19 in which the armature goes back and forth is movable here.
  • the pole faces of the two magnets 15 and 16 opposite the pole plates are each covered with a section 20a or 20b of a flux plate 20, which is angled at the end and has a section 20c perpendicular to the coil axis, in which the armature 14 is supported with its end 14b is.
  • the flux plate section has a recess 21 for receiving the armature, the end 14b of which is tapered in order to enable a switching movement in the bearing.
  • the armature is secured by an integrally formed shoulder 14c, which rests on an invisible embossing of the flux plate section 20c.
  • the entire magnet system i.e. the coil body 12 with the winding 13 and the armature 14, the permanent magnets 15 and 16, the pole plates 17 and 18 and the flux plate 20, are surrounded all around by side walls 22, 23, 24 and 44 of the base body 11, which stand vertically on the floor 11.
  • the base 11a has a recess 11b, so that the base body 11 need not be wider than the diameter of the coil winding.
  • the base body forms contact surfaces for plug-in fastening and positioning of these individual parts.
  • the flux plate 20 is fixed between the side walls 22, 23 and 24 and the contact shoulders 25 and 26, as are the permanent magnets 15 and 16 between the walls 23 and 24 on the one hand and the walls 27 and 28 with the contact shoulders 27a and 28a positioned.
  • the pole plates 17 and 18 are also supported laterally on the walls 23 and 24, while their angled sections 17a and 18a lie between the contact surfaces 29 and 30 of the bobbin flange 12b and with the inside of a nose-shaped elevation 31 of the base body 11 and support a nose 32 of the bobbin 12. This also determines the size of the working air gap.
  • the intermediate wall 23 also forms an insulation between the magnet system and a contact chamber 33, which is also formed in the base body and contains a fixed contact element 34 with a connecting element 35 and a contact spring 36 with a connecting element 37.
  • the two contact connection elements 35 and 37 are fastened by inserting them into grooves in the coil body from two opposite sides. They each form connector pins 38 in a grid with the coil connector pins 39 as well as receptacle connectors (Faston plug) 40.
  • the contact spring 36 is actuated by a slide 41 which is attached to the free armature end 14a with a recess 42 and the end with a further recess 43 the contact spring 36 includes.
  • the contact slide 41 slides on a guide surface 44 of the base body or in a guide channel.
  • the slide 41 is secured by projections 45 of a protective cap 46 made of insulating material. Because the opening 47 for the armature lies in the side wall 48 of the base body, there is a large insulating distance between the magnet system and the contact element.
  • the relay is installed in a simple manner using plug-in technology.
  • the wound bobbin 12 is connected to the flux plate 20, the insulating bushings 49 for the connecting pins 39 being inserted through recesses 50 in the flux plate section 20c.
  • the flux plate with the coil body is inserted into the base body 11, the permanent magnets 15 and 16 and the pole plates 17 and 18 are attached.
  • the connecting element 35 with the contact element 34 is introduced from the same side, whereas the contact connecting element 37 is inserted and fastened into the base body from the opposite side.
  • the armature 14 is inserted into the coil tube 12a and stored, and then the contact slide 41 is pushed onto the armature and onto the contact spring 36.
  • the protective cap 46 the parts are secured and insulated in the base body 11.
  • the contact 51 of the movable contact spring 36 rests in the rest state on a support 52 which is designed as a bent extension of the connecting element 37.
  • the rest position of the contact spring can be adjusted by bending this support 52.
  • FIG. 5 A modified version compared to FIG. 2 shows the detailed representation of FIG. 5.
  • the contact 51 is supported on a stop 53, which is formed on the base body 11 from insulating material. Otherwise, this relay is constructed exactly like the one previously described.
  • 7 to 10 show a schematic representation of various modifications of the relay according to the invention.
  • 7 has a base body 61, a coil body 62 with a winding 63, an armature 64 and permanent magnets 65 and 66.
  • Pole plates 67 and 68 are arranged as previously described, as is a flux plate 69.
  • Two fixed contact elements, 70 and 71, between which a contact spring 72 is movable, are anchored in the base body 61.
  • the armature has an angled and cranked extension 73, onto which an insulating slide 74 is attached or sprayed on.
  • the armature 84 has a base body 81, a coil body 82 with winding 83, an armature 84 and permanent magnets 85 and 86.
  • Two Pole plates 87 and 88 and a flux plate 89 are arranged upside down in the base body 81 compared to the previous constructions.
  • the armature 84 is mounted in a breakthrough in a similar manner as previously in the flow plate 89, but it is extended beyond this end supported and provided with an angled extension 90 which actuates a contact spring 92 via a slide 91.
  • a fixed contact element 93 is anchored with its connecting element as well as a connecting element for the contact spring 92 in the base body 81.
  • FIG. 9 shows a structure similar to that of FIG. 8, but with two fixed contact elements 94 and 95 anchored in the base body 81, between which a movable contact spring 96 can be switched.
  • This movable contact spring 96 is fixedly connected to the armature extension 90 via an insulating block 97, so that a loosely movable slide with its friction is eliminated.
  • FIG. 10 A further modification is shown in FIG. 10.
  • a magnet system with a coil body 102, a winding 103 and an armature 104 is shown in a base body 101.
  • a permanent magnet 105 is arranged on one side of the coil body, while two pole plates 107 and 108 and a flux plate 109 are provided symmetrically in accordance with the previous exemplary embodiments.
  • the base body 101 forms with a guide bar 110 together with the protective cap 111 a guide channel in which balls 112 are movably arranged for contact actuation.
  • These balls 112 made of insulating material are sized and numbered so that they fill the distance between the armature 104 and a contact spring 113 exactly in order to switch this contact spring 113 between two mating contact elements 114 and 115.
  • the actuating balls 112 can be provided, for example, in two slightly different sizes, so that different combinations and thus different actuating units can be formed by appropriate selection from these two sizes.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
EP84114716A 1983-12-30 1984-12-04 Polarisiertes elektromagnetisches Relais Expired EP0147681B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3347602 1983-12-30
DE19833347602 DE3347602A1 (de) 1983-12-30 1983-12-30 Polarisiertes elektromagnetisches relais

Publications (2)

Publication Number Publication Date
EP0147681A1 EP0147681A1 (de) 1985-07-10
EP0147681B1 true EP0147681B1 (de) 1987-09-23

Family

ID=6218476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114716A Expired EP0147681B1 (de) 1983-12-30 1984-12-04 Polarisiertes elektromagnetisches Relais

Country Status (4)

Country Link
US (1) US4602230A (enrdf_load_stackoverflow)
EP (1) EP0147681B1 (enrdf_load_stackoverflow)
JP (1) JPS60158528A (enrdf_load_stackoverflow)
DE (2) DE3347602A1 (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688010A (en) * 1984-12-22 1987-08-18 Matsushita Electric Works, Ltd. Electromagnetic relay
DE3528090C1 (de) * 1985-08-05 1986-10-23 SDS-Relais AG, 8024 Deisenhofen Elektromagnetisches Relais
DE3630467A1 (de) * 1986-09-06 1988-03-10 Standard Elektrik Lorenz Ag Relais, insbesondere kleinrelais
US4981363A (en) * 1989-12-28 1991-01-01 Lipman Leonard H Emergency light/spotlight mechanism for automotive vehicles
ATE130956T1 (de) * 1990-01-12 1995-12-15 Omron Tateisi Electronics Co Elektromagnetisches relais.
DE9013223U1 (de) * 1990-09-18 1992-02-06 Siemens AG, 80333 München Elektromagnetisches Leistungsrelais
DE9013221U1 (de) * 1990-09-18 1992-01-23 Siemens AG, 80333 München Elektromagnetisches Leistungsrelais mit Betätigungsschieber
US5343365A (en) * 1992-09-23 1994-08-30 Potter & Brumfield, Inc. PCB relay having an improved terminal structure
DE19508494C2 (de) * 1995-03-09 1998-08-20 Trw Fahrzeugelektrik Relais, insbesondere für die KFZ-Technik
DE10316509B3 (de) * 2003-04-09 2005-02-03 Song Chuan Europe Gmbh Elektromagnetisches Relais
DE102004018791A1 (de) * 2004-04-15 2005-11-03 Tyco Electronics Amp Gmbh Relaisantrieb, Relais und Bausatz für monostabiles und bistabiles Relais
EP2037469A1 (de) * 2007-09-13 2009-03-18 Delphi Technologies, Inc. Leiterplattenrelais
GB201007458D0 (en) * 2010-05-05 2010-06-16 Camcon Ltd Electromagnetically operated switching devices and methods of actuation thereof
DE102014103247A1 (de) * 2014-03-11 2015-09-17 Tyco Electronics Austria Gmbh Elektromagnetisches Relais
DE102016112663B4 (de) * 2016-07-11 2018-04-12 Phoenix Contact Gmbh & Co. Kg Elektromechanisches Relais, Reihenklemme und elektromechanische Relaisbaugruppe

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE476316A (enrdf_load_stackoverflow) * 1946-10-02
DE1292749B (de) * 1963-04-26 1969-04-17 Sauer Hans Magnetsystem fuer elektromagnetische Schalteinrichtungen
CH418462A (de) * 1963-04-26 1966-08-15 Sauer Hans Ingenieur Magnetsystem
CA1162218A (en) * 1981-04-06 1984-02-14 Mitsuki Nagamoto Electromagnetic relay
DE3132244C2 (de) * 1981-08-14 1983-05-19 Siemens AG, 1000 Berlin und 8000 München Polarisiertes elektromagnetisches Relais
DE3138265C2 (de) * 1981-09-25 1986-10-16 Sds-Elektro Gmbh, 8024 Deisenhofen Elekromagnetisches Schaltgerät
DE3149816C2 (de) * 1981-12-16 1986-09-04 Diehl GmbH & Co, 8500 Nürnberg Polarisiertes Relais

Also Published As

Publication number Publication date
JPS60158528A (ja) 1985-08-19
EP0147681A1 (de) 1985-07-10
DE3347602A1 (de) 1985-07-11
US4602230A (en) 1986-07-22
JPH0527934B2 (enrdf_load_stackoverflow) 1993-04-22
DE3466450D1 (en) 1987-10-29

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