EP0209837A1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
EP0209837A1
EP0209837A1 EP86109698A EP86109698A EP0209837A1 EP 0209837 A1 EP0209837 A1 EP 0209837A1 EP 86109698 A EP86109698 A EP 86109698A EP 86109698 A EP86109698 A EP 86109698A EP 0209837 A1 EP0209837 A1 EP 0209837A1
Authority
EP
European Patent Office
Prior art keywords
armature
spring
leg
yoke
cut
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
EP86109698A
Other languages
German (de)
English (en)
Other versions
EP0209837B1 (fr
Inventor
Erwin Dipl.-Ing. Müller (FH)
Alois Ing. Ruhland
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
Priority to AT86109698T priority Critical patent/ATE43198T1/de
Publication of EP0209837A1 publication Critical patent/EP0209837A1/fr
Application granted granted Critical
Publication of EP0209837B1 publication Critical patent/EP0209837B1/fr
Expired 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
    • H01H50/16—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
    • 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
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature

Definitions

  • the invention relates to an electromagnetic relay with a coil, a flat yoke leg extending next to the coil parallel to the coil axis, a likewise flat armature which is arranged on the end face in front of the coil and is mounted on a bearing edge of the yoke leg, and with a leaf spring, two essentially Anchor retaining spring with mutually perpendicular legs, which rests flatly on the yoke leg with its first leg, is fastened thereon and extends beyond the bearing edge, runs with an arcuate central section around the bearing point to the surface of the anchor and lies flat with its second leg attached to the anchor.
  • the object of the invention is therefore to design a relay of the type mentioned in such a way that the armature is secured against undesired lifting off the yoke in the event of impacts without additional parts and with a relatively simple shape of the bearing elements.
  • this object is achieved in that the end edge of the armature in the region of the bearing point has at least one projection projecting beyond the bearing edge, intersecting the plane of the first spring leg and engaging with at least one correspondingly cut-free section of the first spring leg, the end edge of the cut-off spring section in each case runs parallel to the anchor surface and serves as a support for the anchor in the event of an impermissible movement away from the bearing edge.
  • the section of the first spring leg cut free to intercept the armature lies in the region which extends parallel to the yoke beyond the bearing point, and when the armature is pushed, it hits the end edges of the cut spring section exactly in the direction of the first spring leg. In this direction, ie in the longitudinal direction of the spring material, the spring can absorb high tensile forces without deformation. The armature is thus reliably held by the leaf spring in the event of an impact movement in the direction of the yoke leg.
  • the first spring leg each has a cut-out, nose-shaped section on both side edges, each of which engages with a lateral projection of the armature.
  • the cut-out spring section is designed as a window-shaped recess in the leaf spring, in which a nose-shaped extension of the armature engages.
  • the end edge of the cut-away spring section can also be provided on a tab cut free on both sides and bendable out of the plane of the spring leg.
  • the mentioned distance between the end edge and the anchor surface can optionally be adjusted by bending the tab.
  • a nose-shaped wart can be stamped on the armature side facing the yoke, which has a predetermined distance from the bearing edge of the yoke and is supported on the yoke in its longitudinal direction in the event of impacts of the armature. In this way, shock protection of the armature is achieved during movements perpendicular to the yoke plane.
  • the relay shown in Fig. 1 has a coil body 1 as a base body, which carries a winding 2 and has a pocket-shaped extension 3 on a flange for receiving the contact set.
  • the magnet system is formed by a core 4, an angular yoke 5 and a plate-shaped armature 6, the latter forming a working air gap 7 with the widened pole end 4a of the core 4.
  • the yoke leg 5a which extends above the coil winding parallel to the coil axis, carries an armature retaining spring 8 with a first spring leg 8a resting on the yoke leg 5a and a second spring leg 8b resting on the armature.
  • this armature retaining spring 8 also serves as a contact spring which extends into the pocket-shaped extension 3 of the coil former 1 and carries a contact piece 9 there, which cooperates with a contact piece 10 of a mating contact element 11.
  • a connection element for the armature holding or contact spring 8 is guided in a manner not shown from the spring leg 8a to the connection side of the relay.
  • the relay also typically has coil pins 12.
  • the armature retaining spring 8 is welded or riveted to the yoke leg 5a with its first spring leg 8a at the fastening point 13 and welded or riveted to the armature 6 with its second spring leg 8b at the point 14. Between the two armature legs 8a and 8b, an arcuate middle part 8d is provided, which initially runs as a straight extension of the first armature leg parallel to the yoke leg 5a beyond the bearing edge 15 formed on this yoke leg, then is curved in an arc to the anchor surface and there passes into the second spring leg 8b.
  • the anchor plane intersects the plane of the first spring leg 8a or the central part 8d, a cut-away section of the anchor holding spring 8 engaging with one or more projections 6a of the anchor. This ensures that the armature cannot lift off from the bearing edge 15 in the event of impacts in the direction parallel to the coil axis.
  • the end edge 16 of the cut-away spring section has a distance a from the armature surface which limits the maximum permissible movement of the armature in the direction mentioned parallel to the coil axis.
  • a nose 17 is stamped on the armature on the side facing the coil, which strikes the yoke leg 5a in the event of corresponding impacts and prevents further movement of the armature.
  • This nose 17 has a distance b from the underside of the yoke leg 5a, which defines the maximum permissible armature movement in the direction perpendicular to the coil axis (upward in the drawing). The distances a and b ensure that the normal switching movement of the armature is not hampered by impermissibly high friction, even taking into account the manufacturing tolerances.
  • FIG. 2 the bearing point of the relay described in Fig. 1 is shown in perspective.
  • the armature 6 mounted on the yoke edge 15 has an extension 6a on both sides of the central section 8d of the armature retaining spring 8, the level of which overlaps with the level of the armature retaining spring in this area.
  • the anchor retaining spring has cut-out sections on both sides in the form of catch lugs 18, the underside of which he already imagined trailing edge 16 is formed.
  • This terminating edge 16 runs parallel to the surface of the armature 6 or the armature extensions 6a and has this compared to the distance a described in Fig. 1. In the event of impacts in the direction parallel to the coil axis, the armature strikes the intercepting lugs 18 and cannot be moved out of the bearing beyond the distance a.
  • FIG. 3 An anchor holding spring 28 is shown in FIG. 3, which in its central region 28d has a cut-out section in the form of a window-shaped recess 29, in which a nose-shaped extension 26a of the armature 26 engages.
  • the edge 30 has the aforementioned distance a from the surface of the nose 26a in order to limit the freedom of movement of the armature as in the previous example.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Surgical Instruments (AREA)
  • Valve Device For Special Equipments (AREA)
  • Cookers (AREA)
  • Motor Or Generator Frames (AREA)
  • Breakers (AREA)
  • Burglar Alarm Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Emergency Protection Circuit Devices (AREA)
EP86109698A 1985-07-18 1986-07-15 Relais électromagnétique Expired EP0209837B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86109698T ATE43198T1 (de) 1985-07-18 1986-07-15 Elektromagnetisches relais.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3525716 1985-07-18
DE3525716 1985-07-18

Publications (2)

Publication Number Publication Date
EP0209837A1 true EP0209837A1 (fr) 1987-01-28
EP0209837B1 EP0209837B1 (fr) 1989-05-17

Family

ID=6276122

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86109698A Expired EP0209837B1 (fr) 1985-07-18 1986-07-15 Relais électromagnétique

Country Status (5)

Country Link
US (1) US4670727A (fr)
EP (1) EP0209837B1 (fr)
JP (1) JPS6222339A (fr)
AT (1) ATE43198T1 (fr)
DE (1) DE3663420D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0337097A1 (fr) * 1988-03-03 1989-10-18 Alcatel SEL Aktiengesellschaft Relais électromagnétique
WO1998019321A1 (fr) * 1996-10-31 1998-05-07 Siemens Electromechanical Components, Inc. Ressort integre de retenue d'armature pour relais electromagnetiques

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3817571C2 (de) * 1988-05-24 1993-12-16 Hengstler Bauelemente Elektromagnetisches Relais
EP0374304B1 (fr) * 1988-12-23 1993-06-23 Siemens Aktiengesellschaft Relais électromagnétique
DE8909467U1 (de) * 1989-08-05 1990-12-06 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnetisches Relais
JP2543893Y2 (ja) * 1991-01-31 1997-08-13 オムロン株式会社 電磁継電器
US5497860A (en) * 1994-08-15 1996-03-12 Venturedyne Limited Electromagnetic brake with improved magnet structure
US6679488B2 (en) * 2000-05-08 2004-01-20 Tyco Electronics Amp Gmbh Armature spring for a relay
JP7120057B2 (ja) * 2019-02-05 2022-08-17 オムロン株式会社 電磁石装置
EP3836170B1 (fr) * 2019-12-11 2024-03-20 TE Connectivity Austria GmbH Ensemble de ressort pour solliciter une armature d'un dispositif de commutation et dispositif de commutation comprenant un tel ensemble de ressort
JP2024039490A (ja) * 2022-09-09 2024-03-22 パナソニックＩｐマネジメント株式会社 電磁石装置、及び電磁継電器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1577031A (en) * 1920-01-10 1926-03-16 Kellogg Switchboard & Supply Relay
FR2180841A1 (fr) * 1972-04-17 1973-11-30 Siemens Ag
GB1439425A (en) * 1974-07-23 1976-06-16 Standard Telephones Cables Ltd Electromagnetic relay armature arrangement
DE8235283U1 (de) * 1982-12-15 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117255A (en) * 1961-01-04 1964-01-07 Hamilton Watch Co Electromagnet for winding automobile clocks
JPS4222112Y1 (fr) * 1965-11-30 1967-12-18
NL6613165A (fr) * 1966-09-17 1968-03-18
JPS4818360U (fr) * 1971-07-08 1973-03-01
DE2943440C2 (de) * 1979-10-26 1984-09-06 Nixdorf Computer Ag, 4790 Paderborn Klappankermagnet
JPS6348925Y2 (fr) * 1981-04-21 1988-12-15

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1577031A (en) * 1920-01-10 1926-03-16 Kellogg Switchboard & Supply Relay
FR2180841A1 (fr) * 1972-04-17 1973-11-30 Siemens Ag
GB1439425A (en) * 1974-07-23 1976-06-16 Standard Telephones Cables Ltd Electromagnetic relay armature arrangement
DE8235283U1 (de) * 1982-12-15 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0337097A1 (fr) * 1988-03-03 1989-10-18 Alcatel SEL Aktiengesellschaft Relais électromagnétique
WO1998019321A1 (fr) * 1996-10-31 1998-05-07 Siemens Electromechanical Components, Inc. Ressort integre de retenue d'armature pour relais electromagnetiques
US5982257A (en) * 1996-10-31 1999-11-09 Siemens Electromechanical Components, Inc. Integral armature retention spring for electromagnetic relays

Also Published As

Publication number Publication date
JPS6222339A (ja) 1987-01-30
JPH0442767B2 (fr) 1992-07-14
ATE43198T1 (de) 1989-06-15
US4670727A (en) 1987-06-02
DE3663420D1 (en) 1989-06-22
EP0209837B1 (fr) 1989-05-17

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