EP0136592A1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
EP0136592A1
EP0136592A1 EP84110632A EP84110632A EP0136592A1 EP 0136592 A1 EP0136592 A1 EP 0136592A1 EP 84110632 A EP84110632 A EP 84110632A EP 84110632 A EP84110632 A EP 84110632A EP 0136592 A1 EP0136592 A1 EP 0136592A1
Authority
EP
European Patent Office
Prior art keywords
leg
yoke
leaf spring
armature
spring
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
EP84110632A
Other languages
German (de)
English (en)
Other versions
EP0136592B1 (fr
Inventor
Michael Dipl.-Ing. Dittmann
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
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Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0136592A1 publication Critical patent/EP0136592A1/fr
Application granted granted Critical
Publication of EP0136592B1 publication Critical patent/EP0136592B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/24—Parts rotatable or rockable outside coil
    • H01H50/28—Parts movable due to bending of a blade spring or reed

Definitions

  • the innovation relates to an electromagnetic relay with a coil containing a coil core, an angular yoke, the first leg of which is coupled to a pole end of the coil core and the second leg extends parallel to the coil axis, with a plate-shaped, mounted at the free end of the second yoke leg and with the other pole end of the coil core forming an armature working gap and with an angled, serving as armature return and contact spring leaf spring, the first leg is held on the yoke and extends at least partially parallel to the second yoke leg and the second leg partially lying on the armature connected to it is.
  • Such a relay is already known from DE-GM 82 35 283.
  • the first spring leg of the leaf spring is welded flat to a yoke leg, so that it lies essentially in a plane running through the armature axis of rotation and also exerts a prestress on the armature in its longitudinal direction.
  • the anchor tied up by the second spring leg cannot roll freely on its bearing point, but undesirable friction occurs in the bearing.
  • the spring rate is relatively steep due to the preload exerted on the armature by both spring legs.
  • the object of the innovation is to design a relay of the type mentioned that undesirable in the anchor bearing te friction can be avoided and that the spring rate acting on the armature increases only slightly.
  • this object is achieved in that the two legs of the leaf spring form an approximately right angle to one another at a break point located at a distance from the axis of rotation of the armature, and in that the first spring leg can be pivoted about its attachment point on the yoke essentially without force.
  • the leaf spring Due to the new design and fastening of the leaf spring, it can fulfill a double function as a contact spring and as an armature return spring without the first leg exerting a directing force on the armature.
  • This first spring leg is thus only loaded in tension in its longitudinal direction, while it is freely movable in the transverse direction due to its cross-sectional configuration and the type of its attachment and absorbs practically no forces.
  • the restoring force for the armature is generated by the second spring leg, which is bent approximately at a right angle from the first spring leg and has a long spring length from this outside the arm rotation axis to the point of application on the armature, so that a soft spring characteristic over the long spring arm of the armature is produced.
  • this second spring leg can deflect in its longitudinal direction by pivoting the first spring leg, so that the armature is not moved on the bearing point and is therefore not subject to any noticeable friction.
  • the free movement of the first spring leg about its attachment point is achieved in an expedient embodiment in that it is pivotally mounted in a retaining pin projecting from the yoke.
  • This leg of the leaf spring can be by means of a Nen free end provided eyelet-shaped recess on the retaining pin.
  • the holding pin is adjustable in the longitudinal direction of this first spring leg, for example by bending, so that the position of the break point between the two spring legs can be changed, whereby the bias of the second spring leg against the armature is adjustable.
  • the first spring leg is not intended to exert any directing force on the armature, in a further embodiment it can have an area which is weakened in cross section. This is particularly advantageous if the end of the first spring leg is attached directly to the yoke by welding or in a comparable manner.
  • the cross-sectional weakening also ensures in this case that the first spring leg exerts practically no forces on the armature. If, in a particularly simple design, the leaf spring with the first spring leg should lie flat on the second yoke leg and be fastened to it, it is expedient if the armature is not usually on the free end of the yoke leg, but on the inside of the yoke leg on a coil flange is stored. In this way, it is also ensured in this embodiment that the plane of the second spring leg is at a distance from the armature pivot point.
  • the relay shown in FIGS. 1 and 2 has as a carrier a coil former 1 with the flanges 2 and 3, to which a winding 4 is applied and which carries a continuous core 5 inside.
  • An angular yoke 6 is coupled with its first leg 6a to one end of the coil core, while the second leg 6b extends parallel to the coil axis and forms a bearing for a plate-shaped armature 7 at its free end.
  • This armature forms a working air gap 8 with the free pole of the core 5.
  • the relay corresponds to a conventional structure.
  • the armature 7 actuates a contact spring 9 which is fastened to the armature with rivets or welding spots 10 and extends with its free end 9c beyond the armature, carries a contact piece 11 there and cooperates with a counter-contact element 12.
  • the current supply to the leaf spring 9 takes place via a wire 13, which is welded directly onto the contact piece 11.
  • the leaf spring 9 also serves to reset the armature in addition to making contact.
  • it has a first leg 9a, which is suspended at its end with an eyelet-shaped recess 9d on a holding pin 6c of the yoke 6 and from which a second leg 9b is bent at approximately a right angle at the break point 9d.
  • the holding pin 6c is expediently bent directly out of the material of the yoke 6. It can be adjusted by bending in the longitudinal direction of the spring leg 9a, whereby the break point 9d is also adjusted, so that the pretensioning of the leg 9b relative to the armature can be changed in this way.
  • the spring leg 9a can be freely pivoted about the attachment point on the holding pin 6c, it does not exert any forces on the anchor, rather it is only stressed in its longitudinal direction and thereby absorbs the forces of the second leg 9b. Since the first leg 9a lies in a plane which is at a distance from the axis of rotation of the armature 7, the second leg 9b of the leaf spring has a long lever arm and thus a soft spring characteristic. By reducing the cross-section in the area 9e, the spring rate increases particularly flat. The first leg is also kept particularly narrow in the region 9f, so that the action of prestressing forces on the armature is additionally excluded by this spring leg, even if this spring leg would not be completely free to move at the attachment point.
  • Fig. 3 shows a slightly modified embodiment compared to Fig. 2.
  • the leaf spring 19 was cranked slightly with its first spring leg 19a, so that it partially rests on the yoke leg 6b and attached to it by welding can be.
  • the spring 19 is pressed with an auxiliary stamp 20 step by step in the direction of arrow 21 until the relay response value has reached the desired size.
  • the spring leg 19a can be attached to the yoke in the manner mentioned.
  • the spring leg 19a exerts practically no prestressing forces on the armature.
  • FIG. 4 A further modification compared to FIGS. 2 and 3 is shown in FIG. 4.
  • the relay as such is largely constructed in this case as before.
  • the leaf spring 29 is placed with its first spring leg 29a directly flat on the yoke leg 6b and be on this consolidates.
  • the armature 27 is in this case not mounted on the yoke end, but next to the yoke leg 6b on a projection 3a of the coil flange 3.
  • a plunger 20 is first pressed lightly in the direction of arrow 21 until the desired prestressing of the armature is reached. Then the spring leg 29a is attached to the yoke leg 6b.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Impact Printers (AREA)
EP84110632A 1983-09-09 1984-09-06 Relais électromagnétique Expired EP0136592B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8325986U DE8325986U1 (de) 1983-09-09 1983-09-09 Elektromagnetisches Relais
DE8325986U 1983-09-09

Publications (2)

Publication Number Publication Date
EP0136592A1 true EP0136592A1 (fr) 1985-04-10
EP0136592B1 EP0136592B1 (fr) 1988-06-01

Family

ID=6756923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84110632A Expired EP0136592B1 (fr) 1983-09-09 1984-09-06 Relais électromagnétique

Country Status (2)

Country Link
EP (1) EP0136592B1 (fr)
DE (2) DE8325986U1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004101A1 (fr) * 1986-11-28 1988-06-02 Robert Bosch Gmbh Relais electromagnetique
AT389958B (de) * 1986-03-24 1990-02-26 Uninorm Anstalt Relais
WO1991006964A1 (fr) * 1989-10-24 1991-05-16 Siemens Aktiengesellschaft Dispositif de contact pour inverseur
WO1991012623A1 (fr) * 1990-02-06 1991-08-22 Siemens Aktiengesellschaft Relais electromagnetique
AT404765B (de) * 1986-03-24 1999-02-25 Schrack Components Ag Relais
EP1469500A1 (fr) * 2003-04-15 2004-10-20 Siemens Aktiengesellschaft Système magnétique pour un relais à armature pivotante
CN101807492A (zh) * 2010-03-23 2010-08-18 乐清市金川电子有限公司 大电流继电器
CN107910227A (zh) * 2017-12-22 2018-04-13 宁波天波港联电子有限公司 一种汽车继电器
CN109273325A (zh) * 2017-07-18 2019-01-25 松川精密股份有限公司 继电器

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167668B1 (fr) * 1984-05-09 1988-09-07 Siemens Aktiengesellschaft Dispositif de contact pour relais à pouvoir de coupure élevé
DE8506345U1 (de) * 1985-03-05 1986-07-03 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung in einem Relais für hohe Schaltleistung
DE3935773A1 (de) * 1989-10-24 1991-04-25 Siemens Ag Verfahren zum herstellen einer kontaktvorrichtung
US7116193B2 (en) * 2004-09-29 2006-10-03 Hella Kgaa Hueck & Co. Electromagnetic relay
DE102015208134A1 (de) * 2015-01-30 2016-08-04 Te Connectivity Germany Gmbh Anordnung für eine elektrische Schaltvorrichtung

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1935084U (de) * 1966-01-08 1966-03-24 Schaltbau Gmbh Kleinrelais.
US3437962A (en) * 1967-06-12 1969-04-08 American Mach & Foundry Clapper type relay with improved armature
DE2939178A1 (de) * 1978-11-01 1980-05-08 Omron Tateisi Electronics Co Elektromagnetisches klapprelais
DE8235283U1 (de) * 1982-12-15 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1935084U (de) * 1966-01-08 1966-03-24 Schaltbau Gmbh Kleinrelais.
US3437962A (en) * 1967-06-12 1969-04-08 American Mach & Foundry Clapper type relay with improved armature
DE2939178A1 (de) * 1978-11-01 1980-05-08 Omron Tateisi Electronics Co Elektromagnetisches klapprelais
DE8235283U1 (de) * 1982-12-15 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT389958B (de) * 1986-03-24 1990-02-26 Uninorm Anstalt Relais
AT404765B (de) * 1986-03-24 1999-02-25 Schrack Components Ag Relais
WO1988004101A1 (fr) * 1986-11-28 1988-06-02 Robert Bosch Gmbh Relais electromagnetique
US4951017A (en) * 1986-11-28 1990-08-21 Robert Bosch Gmbh Electromagnetic relay
WO1991006964A1 (fr) * 1989-10-24 1991-05-16 Siemens Aktiengesellschaft Dispositif de contact pour inverseur
US5324901A (en) * 1989-10-24 1994-06-28 Siemens Aktiengesellschaft Contact device for a changer relay
WO1991012623A1 (fr) * 1990-02-06 1991-08-22 Siemens Aktiengesellschaft Relais electromagnetique
EP1469500A1 (fr) * 2003-04-15 2004-10-20 Siemens Aktiengesellschaft Système magnétique pour un relais à armature pivotante
CN101807492A (zh) * 2010-03-23 2010-08-18 乐清市金川电子有限公司 大电流继电器
CN109273325A (zh) * 2017-07-18 2019-01-25 松川精密股份有限公司 继电器
CN107910227A (zh) * 2017-12-22 2018-04-13 宁波天波港联电子有限公司 一种汽车继电器
CN107910227B (zh) * 2017-12-22 2020-09-29 宁波天波港联电子有限公司 一种汽车继电器

Also Published As

Publication number Publication date
EP0136592B1 (fr) 1988-06-01
DE3471808D1 (en) 1988-07-07
DE8325986U1 (de) 1983-12-29

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