EP0278495B1 - Relais électromagnétique et son procédé de fabrication - Google Patents

Relais électromagnétique et son procédé de fabrication Download PDF

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Publication number
EP0278495B1
EP0278495B1 EP88101962A EP88101962A EP0278495B1 EP 0278495 B1 EP0278495 B1 EP 0278495B1 EP 88101962 A EP88101962 A EP 88101962A EP 88101962 A EP88101962 A EP 88101962A EP 0278495 B1 EP0278495 B1 EP 0278495B1
Authority
EP
European Patent Office
Prior art keywords
rivet
armature
contact spring
measuring point
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.)
Expired - Lifetime
Application number
EP88101962A
Other languages
German (de)
English (en)
Other versions
EP0278495A1 (fr
Inventor
Wilfried Dipl.-Ing. Biehl
Florenz Dipl.-Ing. Guttenberg (Fh)
Horst Dipl.-Ing. Hendel (Fh)
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 EP0278495A1 publication Critical patent/EP0278495A1/fr
Application granted granted Critical
Publication of EP0278495B1 publication Critical patent/EP0278495B1/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
    • H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit
    • 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

Definitions

  • the invention relates to an electromagnetic relay with a coil, an angular yoke, the first leg of which is coupled to one end of a coil core and the second leg of which forms a bearing edge for a flat armature which forms a working air gap with the other end of the coil core, and with one the anchor connected, interacting with at least one counter-contact element contact spring.
  • the invention also relates to a method for producing such a relay.
  • a relay of the above type is described for example in DE-GM 82 35 283.
  • the contact spring attached to the armature serves at the same time to mount the armature and to return it to the rest position.
  • An essential quality feature of such a relay is that the force-displacement characteristic of the armature when tightened is in a predetermined range. In order to measure this force-displacement characteristic in production, it is customary to press the armature with a probe and to measure the force curve in the process. However, in order to obtain comparable values for this measurement, the probe must always engage the anchor at the same predetermined distance from the bearing point.
  • DE-U-18 62 118 describes an electromagnetically actuated relay with an angle armature for actuating separately fastened contact elements, the arm leg forming the working air gap having an inserted rivet with a dome-shaped head projecting towards the outside. The other end of the rivet is stamped flat on the inside in the form of a separating plate.
  • the object of the invention is to design a relay of the type mentioned in such a way that accurate scanning of the armature is possible in a simple manner and without complex positioning processes.
  • a method for the simplest possible manufacture of such a relay is to be specified.
  • the armature has, on its outside facing away from the coil core, a projection which is embossed from the armature material and which, with its convex surface, forms a defined highest point as a measuring point at a predetermined distance from the bearing axis of the armature.
  • a measuring point is therefore provided in the relay itself, which has the correct distance from the bearing point from the outset and is inevitably detected during the scanning.
  • no probe with a pointed end is required for scanning, but rather a probe with a flat end can be used, the positioning of which does not go into the measurement result and therefore does not require high accuracy.
  • it can be determined quickly and reliably in this way with a simple measuring step whether the force-displacement curve of the armature lies in the required range.
  • the relay has a coil core 1, which is coupled at one end to the first leg 2a of an angular yoke 2 and has a pole plate 3 at the other end.
  • a flat armature 4 is mounted, which forms a working air gap 5 with the pole plate 3.
  • An essentially angular contact spring 6 is fastened with a leg 6a on the outside of the armature 4, while it is fastened with its second leg 6b on the yoke 2 and thus simultaneously serves to hold and reset the armature 4. With the free end 6c, the contact spring can be switched between two mating contact elements 7 and 8. This design is generally known.
  • the relay In order to be able to measure the force-displacement curve on the armature during manufacture, the relay is held with a tensioning device 9, while a probe 10 presses against the armature 4.
  • the probe 10 has a flat end 10a, with which it presses against a raised measuring point 11, which in turn is formed on a rivet 12 of the armature.
  • This rivet wart 12 is expediently used at the same time for fastening the contact spring leg 6a on the armature.
  • the raised measuring point 11 is only shown schematically in FIG. It can be formed by the most varied shapes of the rivet 12 or another projection on the anchor. All that matters is that the raised point has the correct distance a from the bearing axis 14 of the armature.
  • An axis offset of the measuring probe 10 with its longitudinal axis 13 with respect to the measuring point 11 is irrelevant, as long as the measuring probe 11 somehow detects the measuring point 11 with its flat end 10a.
  • the positional spread of the relay via the clamping device 9 to the probe is taken up only by the flat end of the probe.
  • the shape of the measuring point 11 can be as desired, for example tapering to a point or rounded in the form of a dome.
  • FIG 2. 2 shows a detail of the armature 4 from FIG. 1, on which the spring section 6a rests.
  • a rivet pin 16 protruding upwards is embossed on the anchor, on which the spring 6 with the recess 17 is attached.
  • the dashed contour 16 'of the rivet pin is deformed from above such that a central rivet nipple 19 with a spherical surface is formed, which is surrounded by an annular rivet bead 20.
  • the most elevated point 24 forms the measuring point.
  • the support tool 21 is provided with a centering and embossing pin 22 which engages in the embossing recess 23 of the armature 4.
  • the central spherical cap surface of the rivet wart 19 could also be molded onto the rivet pin 16 during the manufacture of the anchor.
  • the rivet punch 18 only needs to be subjected to an annular deformation in order to produce the rivet bead 20.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Electromagnets (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Burglar Alarm Systems (AREA)
  • Measuring Leads Or Probes (AREA)

Claims (6)

  1. Relais électromagnétique comportant une bobine, une culasse en forme d'équerre (2), dont une branche (2a) est accouplée à une extrémité d'un noyau (1) de la bobine et dont la seconde branche (2b) forme un bord de support pour une armature plate (4) délimitant un entrefer de travail (5) avec l'autre extrémité (3) du noyau de la bobine, et un ressort de contact (6) relié à l'armature (4) et coopérant avec au moins un élément de contact antagoniste (7,8), caractérisé par le fait que l'armature (4) possède, sur sa face extérieure tournée à l'opposé du noyau (1) de la bobine, une partie saillante (12,16) qui est formée par estampage à partir du matériau de l'armature et forme, par sa surface convexe, un point défini, qui est le plus élevé et constitue un point de mesure (11;24) à une distance prédéterminée de l'axe (14) de support de l'armature (4).
  2. Relais suivant la revendication 1, caractérisé par le fait que la partie saillante (12;16) est formée par un bouton de rivet qui sert simultanément à fixer le ressort de contact (6) sur l'armature (4).
  3. Relais suivant l'une des revendications 1 ou 2, caractérisé par le fait que l'appendice saillant (16) possède une surface arrondie en forme de calotte (19).
  4. Procédé pour fabriquer un relais suivant l'une des revendications 1 à 3, selon lequel on forme par estampage une tige de rivet (16) à partir du matériau de l'armature, on applique le ressort de contact au niveau de son évidement (23) au-dessus de la tige de rivet et on déforme la tige de rivet au-dessus du ressort de contact pour former un bouton de rivet, caractérisé par le fait que la tige de rivet (16) est déformée, dans sa partie centrale, pour former un bouton de rivet (19) possédant un point de mesure surélevé (24) et est déformée, dans sa zone marginale, pour former un rebord annulaire de rivet (20).
  5. Procédé suivant la revendication 4, caractérisé par le fait que le bouton de rivet (19) et le rebord de rivet (20) sont déformés en une étape opératoire après la mise en place du ressort de contact.
  6. Procédé suivant la revendication 4, caractérisé par le fait que le point de mesure surélevé (24) est déformé déjà lors de l'emboutissage de la tige de rivet (16) et qu'après la mise en place du ressort de contact, seule la zone marginale de la tige de rivet (16) est déformée pour former le rebord de rivet (20).
EP88101962A 1987-02-13 1988-02-10 Relais électromagnétique et son procédé de fabrication Expired - Lifetime EP0278495B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3704621 1987-02-13
DE3704621 1987-02-13

Publications (2)

Publication Number Publication Date
EP0278495A1 EP0278495A1 (fr) 1988-08-17
EP0278495B1 true EP0278495B1 (fr) 1992-06-03

Family

ID=6320959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101962A Expired - Lifetime EP0278495B1 (fr) 1987-02-13 1988-02-10 Relais électromagnétique et son procédé de fabrication

Country Status (4)

Country Link
US (1) US4870378A (fr)
EP (1) EP0278495B1 (fr)
JP (1) JPH0743991B2 (fr)
DE (1) DE3871540D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19843617C1 (de) * 1998-09-23 2000-06-29 Tyco Electronics Logistics Ag Elektromagnetisches Relais

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4243841C1 (de) * 1992-12-23 1994-01-27 Hella Kg Hueck & Co Elektromagnetisches Relais
DE4243852C1 (de) * 1992-12-23 1994-03-31 Hella Kg Hueck & Co Elektromagnetisches Relais
DE4436404A1 (de) * 1994-10-12 1996-04-18 Bosch Gmbh Robert Elektromagnetisches Relais und Verfahren zu dessen Herstellung
US5872497A (en) * 1996-10-23 1999-02-16 Physio-Control Corporation High energy transfer relay
DE102014103247A1 (de) * 2014-03-11 2015-09-17 Tyco Electronics Austria Gmbh Elektromagnetisches Relais
CN111933487B (zh) * 2020-07-13 2022-11-11 温州佳捷电气有限公司 一种继电器动簧片与骨架的自动装配装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1862118U (de) * 1962-09-15 1962-11-15 Magnetschultz Spezialfabrik Fu Elektromagnetisch betaetigtes relais.
JPS5815893B2 (ja) * 1978-11-01 1983-03-28 オムロン株式会社 電磁継電器
ZA795916B (en) * 1978-11-25 1980-10-29 Lucas Industries Ltd Testing of enclosed electromagnetic relays
DE8235283U1 (de) * 1982-12-15 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais
US4701734A (en) * 1986-03-27 1987-10-20 Niles Parts Co., Ltd. Hinge type relay

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19843617C1 (de) * 1998-09-23 2000-06-29 Tyco Electronics Logistics Ag Elektromagnetisches Relais

Also Published As

Publication number Publication date
US4870378A (en) 1989-09-26
EP0278495A1 (fr) 1988-08-17
DE3871540D1 (de) 1992-07-09
JPS63202815A (ja) 1988-08-22
JPH0743991B2 (ja) 1995-05-15

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