EP0363976B1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
EP0363976B1
EP0363976B1 EP89119015A EP89119015A EP0363976B1 EP 0363976 B1 EP0363976 B1 EP 0363976B1 EP 89119015 A EP89119015 A EP 89119015A EP 89119015 A EP89119015 A EP 89119015A EP 0363976 B1 EP0363976 B1 EP 0363976B1
Authority
EP
European Patent Office
Prior art keywords
contact
coil
point
base body
respect
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 - Lifetime
Application number
EP89119015A
Other languages
German (de)
English (en)
Other versions
EP0363976A1 (fr
Inventor
Harry Dipl.-Ing.(FH) Schröder
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6365168&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0363976(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT89119015T priority Critical patent/ATE92670T1/de
Publication of EP0363976A1 publication Critical patent/EP0363976A1/fr
Application granted granted Critical
Publication of EP0363976B1 publication Critical patent/EP0363976B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/60—Auxiliary means structurally associated with the switch for cleaning or lubricating contact-making surfaces
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding

Definitions

  • the invention relates to an electromagnetic relay with a base body with a bottom surface forming the connection side of the relay, an electromagnetic system arranged on the base body with coil, core and armature, a contact arrangement anchored in the base body with at least one mating contact element and at least one movable contact spring designed as a leaf spring , of which a contact leg provided with a contact point extends essentially perpendicular to the bottom surface, and an actuating element which transmits the armature movement to the contact spring.
  • Such a relay is described for example in DE-C-34 14 731.
  • an actuating slide is located above the magnet system with respect to the connection side of the relay and also above the contact arrangement, the slide acting on a central contact spring directly above the contact points. Since the slide must be made of plastic material, a certain amount of abrasion can never be completely avoided. In the normal installation position of the relay, however, this abrasion falls downwards in the direction of the contact pieces, and there is a risk that, over time, the finest particles from the insulating material of the slide will contaminate the contact surfaces and increase the contact resistance.
  • a similarly constructed relay is known from DE-A-35 39 944, although the slide is located on the connection side of the relay below the magnet system. In the normal installation position of the relay, the contact points are above the slide, so that the abrasion does not fall on the contact surfaces.
  • this arrangement with the slide located between the contact points and the connection side has the Disadvantage that a changeover contact cannot be formed easily since the centrally arranged slide would intersect with the second mating contact element which is also centrally arranged.
  • the second mating contact element with a recess for the slide, this results in a complicated manufacture and assembly. It must also be borne in mind that relays on printed circuit boards can also be installed so that the connection side is on top. In this case, the coupling point between slide and contact spring would also lie above the contact point and the abrasion dust would fall on the contact surfaces in the second-mentioned relay.
  • the object of the invention is to provide a relay of the type mentioned, in which the risk of abrasion falling from the actuating element onto the contact points is largely avoided, while at the same time achieving a simple structure and simple assignment between the contact arrangement, magnet system and actuating element becomes.
  • this object is achieved in the relay of the type mentioned at the outset in that the contact point and the point of application of the actuating element on the contact spring are offset from one another in such a way that they are spaced apart from one another in the projection onto the floor surface.
  • the actuating element engages laterally offset with respect to the contact point on the contact spring, so that the point of attack is neither in the normal installation position nor in the reverse installation position above the contact point. Due to the laterally offset arrangement, an actuating element can easily be guided past a mating contact element even in the case of a changeover contact, without this requiring a special shape of the contact element or of the actuating element.
  • a laterally offset actuation of the contact spring also brings with it the advantage that the torsion movement caused thereby in the contact spring causes the contact pieces to roll off, which enables a self-cleaning effect or easier tearing of the contacts when they are slightly welded by the switching arc.
  • the point of attack of the actuating element may lie above the contact point.
  • the contact point and the point of application of the actuating element are additionally offset with respect to one another in terms of height with respect to the base surface.
  • the contact point and actuation point of the contact spring are offset with respect to one another with respect to the connection side, so that when standing or lying installation in any position, the resulting abrasion falls down next to the contacts and thus the contact points are no longer directly contaminated.
  • the contact point and the actuation point of the contact spring could only lie one above the other if the relay were installed in a specific inclined position, which is extremely unlikely.
  • the design according to the invention can be used particularly advantageously in a relay in which the coil has its axis parallel to the bottom surface, the armature is arranged approximately perpendicular to the bottom surface on one end of the coil and the contact arrangement is arranged in front of the end face of the coil opposite the armature , as is known from DE-C-34 14 731 already mentioned at the beginning.
  • a rod-shaped, on the outside of the coil in the direction of the coil axis serves as the actuating element extending slide, the contact points of the contact arrangement being arranged on one side with respect to a plane which passes through the coil axis and is perpendicular to the bottom surface, and the slide is arranged on the other side.
  • the slide is arranged between the coil and the base plate.
  • an actuating tab offset at an angle to the contact point is expediently formed or cut onto the free end of the contacting leg of the contact spring.
  • this actuating flap can be made particularly narrow, or a web with a reduced cross-section can be provided between it and the actual contact leg.
  • the contact spring itself has approximately the shape of an inverted U, wherein it is fastened with one leg to a connecting element anchored in the base body and carries a contact piece on the second leg and forms an engagement point for the slide.
  • a connecting element anchored in the base body
  • the connection element for the contact spring is anchored in the area of the opposite side of the base body, the two legs of the contact spring being offset obliquely to one another in parallel planes . In this way, the best possible spacing of the connecting elements and the greatest possible spring length of the contact spring are obtained with the most economical use of space.
  • the connector for the contact spring can also have an adjustment web with a reduced cross section.
  • the relay shown in FIGS. 1 to 3 has a base body 1 with a bottom surface 1a and a design shown in more detail in FIG.
  • a magnet system with a coil 2, a core 3 arranged inside the coil in the axial direction, an angular yoke 4 and a flat armature 5 is arranged on the base body 1.
  • the coil axis runs parallel to the connection level of the relay.
  • the yoke 4 is arranged such that its short leg 4a extends perpendicular to the connection plane in front of one end of the coil and is connected to the core, while its long leg 4b extends parallel to the connection plane, but above the coil 2 and at its free end End forms a storage for the anchor 5.
  • a leaf spring 6 designed as a bearing plate and anchor spring serves to support the armature 5 at the free yoke end, the special shape of which is described and shown in EP-A-0 251 034.
  • the armature 5 extends in front of the end face of the coil opposite the yoke leg 4a and forms a working air gap with the free end of the core 3.
  • the plate-shaped armature 5 extends approximately perpendicular to the connection plane of the relay, so that its free end 5a is located on the underside of the magnet system.
  • This free end 5a is coupled to a rod-shaped slide 7 which extends below the coil 2 parallel to its axis, but is arranged offset from the center to one side.
  • a contact arrangement is anchored in the base body 1 in front of the end of the coil 2 opposite the armature.
  • This contact arrangement consists of two fixed mating contact elements 8 and 9 with contact pieces 8a and 9a and a center contact spring 10.
  • the mating contact elements 8 and 9 are anchored with their angled connecting elements 8b and 9b in corresponding slots or openings 11 and 12 of the base body.
  • the counter-contact elements 8 and 9 are arranged opposite to the slide 7 from the center to the side.
  • the center contact spring 10 is fastened with a connection bracket 13 in an opening 14 of the base body on the side of the slide 7.
  • the special shape of the contact spring 10 can be seen in the perspective view of FIG. 4.
  • the spring has approximately a U-shape with a fastening leg 15, a middle part 16 and a contact leg 17.
  • the middle part 16 has approximately the shape of a parallelogram, so that the contact leg 17 is offset parallel to the fastening leg 15.
  • the mounting leg 15 is thus with the connection bracket 13 on one side of the base body in the extension of the slide 7, while the contact leg 17 is on the other side of the base body between the counter-contact elements 8 and 9.
  • This shape of the contact spring 10 results on the one hand in a large spring length, but on the other hand also the possibility of isolating the connection angle 13 far from the connection legs 8b or 9b of the mating contact elements in the insulation Arrange base body.
  • the base body 1 also has an upwardly formed partition wall 18.
  • an actuating tab 19 is integrally formed on the free end of the contact leg 17, which is located in the extension of the slider 7 and into a recess 20 of the Basic body extends in which the slide is also located.
  • a pin 7a formed at the end of the slide 7 engages in a recess 19a of the actuating tab 19.
  • the other end of the slide 7 is coupled to the armature in the same way by a pin 7b.
  • the offset arrangement of the actuating tab 19 with respect to the contact leg 17 also has the advantage that a certain torsional stress on the contact spring 10 and thus a rolling movement on the contact piece 17a is generated when actuated. As a result, the contact can be broken more easily even after light welding.
  • the force-displacement characteristic of the relay can also be set. An additional one could also be used to further tune this force-displacement characteristic Slit 22 (indicated by dashed lines in FIG. 4) can be provided in this area.
  • connection bracket 13 In order to be able to adjust the position of the contact spring 10, a notch is provided on the connection bracket 13 to form a predetermined bending point 23. It should also be pointed out that a changeover contact arrangement is shown in the exemplary embodiment shown. By leaving the counter-contact element 9, a normally open contact can be obtained without any other change, and by opening the counter-contact element 8, an NC contact can be obtained.
  • the structure of the base body can also be seen in the perspective view of FIG. 4.
  • the special feature of the base body is the asymmetrical design of the support part 23 for the coil. This design creates a longitudinal channel 24 on one side, in which the slide 7 can extend as far as the depression 20.
  • a shoe-like partition 25 is formed on the base body 1 for insulation between the coil 2, the core 3 and the yoke 4. After assembly of the functional parts on the base body, a cap 26 is slipped on from above, which additionally increases the insulation between the magnetic circuit and the contact arrangement with an intermediate wall 27.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)
  • Relay Circuits (AREA)
  • Magnetic Treatment Devices (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Claims (9)

  1. Relais électromagnétique, qui comporte :
    - un corps de base (1) possédant une surface de fond (1a) formant la face de raccordement du relais,
    - un système électromagnétique relié au corps de base et comportant une bobine (2), un noyau (3) et une armature (5),
    - un dispositif de contact, qui est ancré dans le corps de base (1) et qui comporte au moins un élément de contact antagoniste (8,9) et au moins un ressort de contact mobile (10) agencé en tant que ressort à lame et dont une branche de contact, qui est pourvue d'une plage de contact (17a), s'étend sensiblement perpendiculairement à la surface du fond, ainsi que
    - un élément d'actionnement (7), qui transmet le déplacement de l'armature au ressort de contact,
    caractérisé par le fait que la plage de contact (17a) et le point d'attaque (19a) de l'élément d'actionnement (7) sur le ressort de contact (10) sont décalés l'un par rapport à l'autre de telle sorte qu'ils sont situés à distance, l'un à côté de l'autre, en projection sur la surface de fond (1a).
  2. Relais suivant la revendication 1, caractérisé par le fait que la plage de contact (17a) et le point d'attaque (19a) de l'élément d'actionnement (7) sont en outre disposés à des hauteurs différentes par rapport à la surface de fond (1a).
  3. Relais suivant la revendication 1 ou 2, caractérisé par le fait que l'axe de la bobine (2) est parallèle à la surface de fond (1a),
    que l'armature (5) est disposée sur une face frontale de la bobine (2), approximativement perpendiculairement à la surface de fond,
    que le dispositif de contact (8,9,10) est disposé devant la face frontale de la bobine (2), située en vis-à-vis de l'armature (5), et
    qu'on utilise comme élément d'actionnement un poussoir (7) en forme de tige, qui s'étend sur la face extérieure de la bobine, dans la direction de l'axe de la bobine, la plage de contact (17a) du dispositif de contact étant disposée d'un côté et le poussoir (7) de l'autre côté d'un plan passant par l'axe de la bobine et perpendiculaire à la surface de fond (1a).
  4. Relais suivant la revendication 3, caractérisé par le fait que la culasse (4) possède une branche (4b), qui est disposée au-dessus de la bobine (2), par rapport à la plaque de fond, et à l'extrémité de laquelle est tourillonnée l'armature en forme de plaque (5), et que le poussoir (7) est disposé entre la bobine (2) et la plaque de base (1a).
  5. Relais suivant l'une des revendications 1 à 4, caractérisé par le fait que sur l'extrémité libre de la branche de contact (17) du ressort de contact (10) est formée une patte d'actionnement (19), qui s'étend obliquement par rapport à la plage de contact (17a) et à laquelle est accroché le poussoir (7).
  6. Relais suivant la revendication 5, caractérisé par le fait qu'une barrette (22), dont la section transversale est réduite, est prévue entre la patte d'actionnement (19) et la plage de contact (17a) de la branche de contact (17).
  7. Relais suivant l'une des revendications 1 à 6, caractérisé par le fait que le ressort de contact (10) possède approximativement la forme d'un U renversé, qu'il est fixé par une branche de fixation (15) à un élément de raccordement (13) ancré dans le corps de base (1), et qu'il porte, au niveau de sa seconde branche (17), une pièce de contact (17a) et forme une zone d'attaque (19a) pour le poussoir (7).
  8. Relais suivant la revendication 7, caractérisé par le fait qu'un ou deux éléments de contact antagonistes (8, 9) sont ancrés au niveau d'un côté dans le corps de base (1), que l'élément de raccordement (13) pour le ressort de contact (10) est ancré au niveau du côté opposé dans le corps de base (1) et que les deux branches (15,17) du ressort de contact (10) sont décalées l'une par rapport à l'autre en oblique et dans des plans parallèles.
  9. Relais suivant la revendication 7 ou 8, caractérisé par le fait que l'élément de raccordement (13) pour le ressort de contact (10) possède une barrette d'ajustement (23), dont la section transversale est réduite.
EP89119015A 1988-10-14 1989-10-12 Relais électromagnétique Expired - Lifetime EP0363976B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89119015T ATE92670T1 (de) 1988-10-14 1989-10-12 Elektromagnetisches relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3835118A DE3835118A1 (de) 1988-10-14 1988-10-14 Elektromagnetisches relais
DE3835118 1988-10-14

Publications (2)

Publication Number Publication Date
EP0363976A1 EP0363976A1 (fr) 1990-04-18
EP0363976B1 true EP0363976B1 (fr) 1993-08-04

Family

ID=6365168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119015A Expired - Lifetime EP0363976B1 (fr) 1988-10-14 1989-10-12 Relais électromagnétique

Country Status (7)

Country Link
US (1) US4958137A (fr)
EP (1) EP0363976B1 (fr)
JP (1) JPH0636340B2 (fr)
AT (1) ATE92670T1 (fr)
DE (2) DE3835118A1 (fr)
ES (1) ES2041935T3 (fr)
PT (1) PT91962B (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9013221U1 (de) * 1990-09-18 1992-01-23 Siemens AG, 80333 München Elektromagnetisches Leistungsrelais mit Betätigungsschieber
DE9016264U1 (de) * 1990-11-29 1991-02-21 Siemens AG, 8000 München Relais
EP0501070B2 (fr) * 1991-02-27 2003-05-14 Takamisawa Electric Co., Ltd. Relais électromagnétique de petite dimension
DE4115092C3 (de) * 1991-05-08 1999-06-24 Eberle Controls Gmbh Elektromagnetisches Schaltrelais für Leiterplattenmontage
AT402580B (de) * 1991-10-07 1997-06-25 Schrack Components Ag Kontaktfeder, insbesondere für ein relais
JP3383984B2 (ja) * 1992-05-14 2003-03-10 オムロン株式会社 電磁継電器
US5289144A (en) * 1992-08-21 1994-02-22 Potter & Brumfield, Inc. Electromagnetic relay and method for assembling the same
AT404768B (de) * 1993-07-02 1999-02-25 Schrack Components Ag Relais
DE4405222C1 (de) * 1994-02-18 1995-05-11 Siemens Ag Verfahren zur Herstellung eines Relais mit beweglichem Schieber und nach dem Verfahren hergestelltes Relais
US5872497A (en) * 1996-10-23 1999-02-16 Physio-Control Corporation High energy transfer relay
NL1008747C2 (nl) * 1998-03-30 1999-10-01 Holec Holland Nv Schakelaar met door een venster waarneembare contacten.
JP5085754B2 (ja) * 2011-03-14 2012-11-28 オムロン株式会社 電磁継電器
JP4883232B1 (ja) * 2011-03-14 2012-02-22 オムロン株式会社 電磁継電器
CN103339705B (zh) * 2011-03-14 2017-02-15 欧姆龙株式会社 电磁继电器
JP6025414B2 (ja) * 2011-09-30 2016-11-16 富士通コンポーネント株式会社 電磁継電器
JP6056264B2 (ja) * 2012-08-24 2017-01-11 オムロン株式会社 電磁石装置およびそれを用いた電磁継電器
JP6043173B2 (ja) * 2012-12-07 2016-12-14 富士通コンポーネント株式会社 電磁継電器
JP6263904B2 (ja) * 2013-08-23 2018-01-24 オムロン株式会社 電磁石装置およびこれを用いた電磁継電器
DE102014103247A1 (de) * 2014-03-11 2015-09-17 Tyco Electronics Austria Gmbh Elektromagnetisches Relais
CH713442B1 (de) * 2017-02-08 2021-03-31 Elesta Gmbh Ostfildern De Zweigniederlassung Bad Ragaz Relais.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1514538A1 (de) * 1965-08-20 1969-05-14 Siemens Ag Elektromagnetisches Relais
DE1906109A1 (de) * 1969-02-07 1970-08-20 Ribler Pfeiffer Geb Verfahren und Vorrichtung zur Steuerung von Webmaschinen
DE7037474U (de) * 1970-10-10 1971-05-06 Bach & Co Elektrisches Relais
DE8438436U1 (de) * 1984-04-18 1987-10-22 Hengstler Bauelemente GmbH, 7209 Wehingen Kleinstrelais
ES282805Y (es) * 1984-11-22 1986-04-16 Eichhoff Espanola S.A. Rele electromagnetico
US4818965A (en) * 1986-06-23 1989-04-04 Siemens Aktiengesellschaft Electromagnetic relay
US4740769A (en) * 1986-06-23 1988-04-26 Siemens Aktiengesellschaft Electromagnetic relay
DD265732A1 (de) * 1987-10-29 1989-03-08 Grossbreitenbach Relaistech Kontaktfedersatz fuer relais

Also Published As

Publication number Publication date
PT91962A (pt) 1990-04-30
JPH0636340B2 (ja) 1994-05-11
DE3835118A1 (de) 1990-04-19
ATE92670T1 (de) 1993-08-15
JPH02165535A (ja) 1990-06-26
PT91962B (pt) 1995-08-09
EP0363976A1 (fr) 1990-04-18
DE58905138D1 (de) 1993-09-09
ES2041935T3 (es) 1993-12-01
US4958137A (en) 1990-09-18

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