EP0707332A1 - Relais électromagnétique et méthode de sa fabrication - Google Patents

Relais électromagnétique et méthode de sa fabrication Download PDF

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Publication number
EP0707332A1
EP0707332A1 EP95113200A EP95113200A EP0707332A1 EP 0707332 A1 EP0707332 A1 EP 0707332A1 EP 95113200 A EP95113200 A EP 95113200A EP 95113200 A EP95113200 A EP 95113200A EP 0707332 A1 EP0707332 A1 EP 0707332A1
Authority
EP
European Patent Office
Prior art keywords
coil core
relay
magnetic yoke
contact surface
coil
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
EP95113200A
Other languages
German (de)
English (en)
Other versions
EP0707332B1 (fr
Inventor
Siegfried Schneider
Manfred Mitsch
Theodor Sturm
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0707332A1 publication Critical patent/EP0707332A1/fr
Application granted granted Critical
Publication of EP0707332B1 publication Critical patent/EP0707332B1/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
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
    • H01H2050/367—Methods for joining separate core and L-shaped yoke
    • 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 is based on an electromagnetic relay according to the preamble of the main claim and further relates to a method for producing such a relay.
  • Such a relay is known from DE 28 32 507 C2.
  • the known relay has a rod-shaped or bolt-shaped, essentially cylindrical coil core, which carries a coil and one end of which is riveted to the shorter leg of an L-shaped armature plate.
  • a folding armature carrying relay contacts is arranged on the free end face of the coil core so as to be pivotable about a pivot axis. It is held at a distance from the coil core by a spring and, in the case of a current flowing through the coil, is pulled against the spring force against the free end face of the coil core forming a pole face.
  • the wobble rivet forms a flange on the free end face of the coil core, which at the same time fixes the coil in the axial direction.
  • the described wobble riveting has the disadvantage that it has to be carried out very precisely in order to bring the coil core as precisely as possible to the required length. Due to the necessary precision, it causes a not insignificant effort and thus contributes a considerable portion to the cost of relay production.
  • a coil core is used, the length of which is decisive for the position of the hinged armature in relation to the coil core, is precisely adapted to the required length even before the connection of the coil core to the magnetic yoke. There is no need to adjust the individual parts.
  • the coil core of the relay according to the invention has a contact surface for contact with the magnetic yoke, which ensures that the length of the coil core, which is decisive for the position of the hinged armature in relation to the coil core, does not change when the coil core is connected to the magnetic yoke.
  • the coil core can be connected to the magnetic yoke, for example, by riveting, screwing, soldering, welding or gluing.
  • the invention has the advantage that the tumbling riveting to be carried out with high investment costs and with great effort is eliminated. Furthermore, the free end face of the coil core forming a pole face becomes after it Connection with the magnetic yoke no longer processed. Rejects due to surface defects such as abrasion or flaking of the pole face due to their processing are eliminated. A cycle time of one second or less is possible when installing the relay according to the invention.
  • the subclaims relate to advantageous developments and improvements of the relay according to the main claim and the method according to the invention for producing such a relay according to the secondary claim.
  • the coil core is brought to the required length from its contact surface to the pole surface by upsetting, the coil core being supported on the contact surface.
  • Upsetting is a quick and easy process that can be used to bring the coil core exactly to the desired length.
  • the relay shown in FIG. 1 has a base plate 10 made of insulating material, on which an L-shaped magnetic yoke 12 made as a bent sheet metal part is fastened.
  • An essentially cylindrical coil core 14 is riveted to the shorter leg of the magnetic yoke 12.
  • the coil core 14 has an annular shoulder surface as a contact surface 16, which is arranged around a rivet pin 18, which is used for riveting to the magnetic yoke 12.
  • the coil core 14 has a flange 20, the free end surface of which is configured as a spherical surface 22 of the coil core 14.
  • a hinged armature 26 is pivotally mounted in a recess 28 of the magnetic yoke 12.
  • a base 30 of the recess 28 is made inclined to the longitudinal direction of the longer leg of the magnetic yoke 12.
  • a leaf spring 36 extends in an arc around the free end of the longer leg of the magnetic yoke 12 and the end of the hinged armature 26 mounted in it.
  • the leaf spring 36 is connected to the hinged anchor 26 by means of two rivets 38. It is connected to the longer leg of the magnetic yoke 12 by a spot weld 40.
  • the leaf spring 36 lifts the hinged armature 26 off the pole face 22 of the coil core 14.
  • FIG. 1 shows a position of the hinged armature 26 resting on the pole face 22, into which it pivots when the coil 24 is energized due to magnetic force against the spring force of the leaf spring 36.
  • the leaf spring 36 extends beyond a free end of the hinged anchor 26. It serves as a carrier for a movable double contact 42 of the electromagnetic relay according to the invention.
  • the double contact 42 is located between two fixed contacts 44, 46 of the relay, which are connected to the base plate 10 via sheet metal tongues 48, 50. In the switching position of the relay shown in FIG. 1, the double contact 42 bears against one of the two fixed contacts 46. In a non-illustrated rest position of the relay, the double contact 42 comes to rest on the other fixed contact 44.
  • the two sheet metal tongues 48, 50 are passed through the base plate 10 for the electrical connection of the relay, which is not visible in the drawing.
  • the manufacturing process of the relay according to the invention is explained with reference to FIGS. 2 and 3.
  • the height h of the pivot axis 32 formed at the end of the longer leg of the L-shaped magnetic yoke 12 for the hinged armature 26 above the base 34 on the shorter leg of the magnetic yoke 12 is measured exactly (FIG. 3).
  • This height h determines the length l of the coil core 14 from its contact surface 16 to its pole face 22.
  • the required length l is produced exactly for the relay by upsetting the coil core 14 with a stamp 64 (FIG. 2).
  • the coil core 14 is supported during the upsetting process with its contact surface 16 on a counter-holder 66, the one Has bore 68 for the rivet pin 18 of the coil core 14.
  • a distance d between the pivot axis 32 and the pole face 22 in the direction of a longitudinal axis 70 of the coil core 14 is exactly defined by the manufacturing method according to the invention and is set to the same size for each relay of a series, regardless of tolerances in the production of individual parts.
  • the later position of the hinged armature 26 in relation to the coil core 14 and its pole face 22 is thus also precisely predetermined.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
EP95113200A 1994-10-12 1995-08-23 Méthode de fabrication d'un relais électromagnétique Expired - Lifetime EP0707332B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4436404A DE4436404A1 (de) 1994-10-12 1994-10-12 Elektromagnetisches Relais und Verfahren zu dessen Herstellung
DE4436404 1994-10-12

Publications (2)

Publication Number Publication Date
EP0707332A1 true EP0707332A1 (fr) 1996-04-17
EP0707332B1 EP0707332B1 (fr) 1999-03-17

Family

ID=6530548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95113200A Expired - Lifetime EP0707332B1 (fr) 1994-10-12 1995-08-23 Méthode de fabrication d'un relais électromagnétique

Country Status (4)

Country Link
US (1) US5689222A (fr)
EP (1) EP0707332B1 (fr)
DE (2) DE4436404A1 (fr)
ES (1) ES2131734T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304675B4 (de) * 2002-02-07 2009-08-20 Tyco Electronics Amp Gmbh Schaltrelais mit einer Magnetspule und Verfahren zum Herstellen eines Schaltrelais

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6679488B2 (en) * 2000-05-08 2004-01-20 Tyco Electronics Amp Gmbh Armature spring for a relay
ATE326063T1 (de) * 2002-11-15 2006-06-15 Tyco Electronics Amp Gmbh Magnetsystemumspritzung für ein relais
US20070290776A1 (en) * 2006-06-17 2007-12-20 Tim Hasenour Time delay relay
US20070290646A1 (en) * 2006-06-17 2007-12-20 Tyco Electronics Corporation Soft start time delay relay
DE102015201703A1 (de) * 2015-01-30 2016-08-04 Te Connectivity Germany Gmbh Geräuscharm schaltende elektrische Schaltvorrichtung
DE102018109856B3 (de) * 2018-04-24 2019-08-01 Phoenix Contact Gmbh & Co. Kg Relais
US11705788B2 (en) * 2020-09-02 2023-07-18 Michael Robert Maurice Electromagnetic drive unit with hingeably movable coil around magnet with resilient band holding coil to magnet

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2450247A1 (de) * 1974-10-23 1976-05-06 Rausch & Pausch Elektromagnet, insbesondere fuer relais od. dgl.
DE2832507A1 (de) * 1978-07-25 1980-02-07 Bosch Gmbh Robert Elektromagnetisches relais
DE3210031A1 (de) * 1982-03-19 1982-10-21 Alois Zettler Elektrotechnische Fabrik GmbH, 8000 München Joch-kern-verbindung an elektromagnetischen relais
DE3148052A1 (de) * 1981-12-04 1983-06-09 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnetisches relais und verfahren zu seiner herstellung
EP0374552A2 (fr) * 1988-12-20 1990-06-27 Stribel GmbH Procédé de fabrication d'un relais électromagnétique et relais ainsi obtenu

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5815893B2 (ja) * 1978-11-01 1983-03-28 オムロン株式会社 電磁継電器
US4870378A (en) * 1987-02-13 1989-09-26 Siemens Aktiengesellschaft Electromagnetic relay and method for its manufacture
DE3836096C2 (de) * 1988-10-22 1997-06-12 Bosch Gmbh Robert Elektromagnetisches Relais

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2450247A1 (de) * 1974-10-23 1976-05-06 Rausch & Pausch Elektromagnet, insbesondere fuer relais od. dgl.
DE2832507A1 (de) * 1978-07-25 1980-02-07 Bosch Gmbh Robert Elektromagnetisches relais
DE3148052A1 (de) * 1981-12-04 1983-06-09 Robert Bosch Gmbh, 7000 Stuttgart Elektromagnetisches relais und verfahren zu seiner herstellung
DE3210031A1 (de) * 1982-03-19 1982-10-21 Alois Zettler Elektrotechnische Fabrik GmbH, 8000 München Joch-kern-verbindung an elektromagnetischen relais
EP0374552A2 (fr) * 1988-12-20 1990-06-27 Stribel GmbH Procédé de fabrication d'un relais électromagnétique et relais ainsi obtenu

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10304675B4 (de) * 2002-02-07 2009-08-20 Tyco Electronics Amp Gmbh Schaltrelais mit einer Magnetspule und Verfahren zum Herstellen eines Schaltrelais

Also Published As

Publication number Publication date
EP0707332B1 (fr) 1999-03-17
DE59505364D1 (de) 1999-04-22
US5689222A (en) 1997-11-18
DE4436404A1 (de) 1996-04-18
ES2131734T3 (es) 1999-08-01

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