EP0707331A1 - Relais - Google Patents

Relais Download PDF

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Publication number
EP0707331A1
EP0707331A1 EP95890179A EP95890179A EP0707331A1 EP 0707331 A1 EP0707331 A1 EP 0707331A1 EP 95890179 A EP95890179 A EP 95890179A EP 95890179 A EP95890179 A EP 95890179A EP 0707331 A1 EP0707331 A1 EP 0707331A1
Authority
EP
European Patent Office
Prior art keywords
armature
spring
relay according
supported
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.)
Granted
Application number
EP95890179A
Other languages
German (de)
English (en)
Other versions
EP0707331B1 (fr
Inventor
Leopold Mader
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.)
Tyco Electronics Austria GmbH
Original Assignee
EH Schrack Components AG
Schrack Components 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 EH Schrack Components AG, Schrack Components AG filed Critical EH Schrack Components AG
Publication of EP0707331A1 publication Critical patent/EP0707331A1/fr
Application granted granted Critical
Publication of EP0707331B1 publication Critical patent/EP0707331B1/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
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/24—Parts rotatable or rockable outside coil
    • H01H50/26—Parts movable about a knife edge

Definitions

  • the invention relates to a relay according to the preamble of claim 1.
  • an electromagnetic relay is known from DE-A1-30 09 718, in which the armature spring is designed as a leaf spring with a long resilient leg and at this end with a semicircular embossing Press the anchor over an embossed flat surface into the anchor bend on the yoke edge of the yoke.
  • the anchor in its lateral position is concentrated precisely on the yoke via lateral approaches.
  • the object of the invention is therefore to provide a relay of the type mentioned, in which the armature spring can be manufactured and assembled in a simple manner.
  • the proposed measures make it possible to make the anchor spring very simple and material-saving and to dispense with complicated shapes.
  • the armature spring is designed as a leaf spring.
  • the armature spring can also be produced in a flat shape and no pre-deformation is required, so that the production process is considerably simplified.
  • the procedure is such that the support point of the anchor spring is offset in height or in the anchor opposite the two clamping or bearing points, then the anchor spring bulges in the inserted state, so that the force required to generate the torque driving the armature out of it
  • the armature spring is subjected to bending stress without the need to produce a bulging spring.
  • An advantageous embodiment of the invention can consist in that the support point on or in the armature lies on a surface which is inclined towards the pole face and which runs obliquely in the direction from the pole face to the outside of the armature.
  • the inclination of the surface of the armature on which the support point of the armature spring lies ensures that the force of the armature spring acting on this surface causes a force component acting in the direction of the pole surface and thus prevents the armature from slipping.
  • the force exerted on the armature by the armature spring brings about a torque driving the armature back into its dropped position, which is caused by the inevitably given distance between the bearing edge, which runs in the plane of the pole face, and the support point of the armature spring on or in the armature .
  • the surface inclined towards the pole surface in the armature is formed by a truncated cone-shaped impression.
  • the armature spring is substantially E-shaped, the central web forming a spring tongue on which the armature spring is supported in the wedge-shaped impression of the armature, and snap-in lugs are formed on the outer webs can be snapped into a fixed part of the relay.
  • a further embodiment of the invention can consist in that latching recesses are provided on a part receiving the magnet system for latching the latching lugs of the outer webs.
  • the part receiving the magnet system can be formed in one piece in such a way that it also receives the latching recesses for the armature spring, so that no additional parts have to be manufactured and assembled.
  • the bearing edge supporting the armature is formed by two or more wedge-shaped elevations of the part, on the wedge surfaces of which the armature rests in its dropped position on the end face.
  • the dropped position of the armature is stable, while the attracted position is only maintained as long as the coil is energized.
  • the armature has projecting side edges which, in the dropped state of the armature, rest on projections of the coil body.
  • the armature spring is formed by a leaf spring with a continuously rectangular cross section and is supported in the center on a projection of the armature with a surface inclined towards the pole face.
  • the armature spring is formed by a wire spring stretched between two clamping points with a continuously circular cross section and is supported in the center on a projection of the armature.
  • FIG. 1 shows an embodiment of a magnet system according to the invention comprising a core 6 and a yoke 7, which is provided with a pole face 8 at its end.
  • a part 9 which holds the magnet system and which carries a coil (not shown) sits on the core 6.
  • An armature 11 is held by means of an armature spring 1 in contact with a bearing edge supporting it, which lies essentially in the plane of a pole face 30 of the core 6 and is determined by wedge-shaped elevations 16, the armature spring 1 engaging in an indentation 12 of the armature 11 and is supported in this, which fixes the anchor 11 in its position in the direction of the longitudinal extent of the bearing edge 16.
  • a surface 31 of the indentation 12, on which the armature spring 1 is supported, is set at an angle to the direction of the force F1 exerted by the armature spring 1, so that the armature spring 1 exerts a torque which drives the armature 11 back into the dropped position (FIG. 3 and Fig.3a).
  • the surface 31 is inclined in the direction from the pole surface 30 of the core 6 to the outside 32 of the armature 11, an angle ⁇ being included between the armature spring plane and the surface 31. The one from the The inclined position of the surface 31, resulting force F, causes a restoring torque M on the armature 11.
  • armature 11 and armature spring 1 Before the assembly of part 9, armature 11 and armature spring 1, the armature spring 1 is still completely flat and is only brought into the built-in curved shape by application of force (FIGS. 5, 6 and 7) in which it is therefore curved, because the support point 31 or 31 'of the armature spring 1 according to a variant of the invention on or in the armature 11 is offset in height with respect to the two clamping or bearing points 33.
  • the leaf spring 1 clamped at both ends is supported centrally on the surface 31, which is formed by a wedge-shaped impression 12 of the armature 11 (FIG. 5).
  • the armature spring 1 can, however, be designed in various other shapes, for example in that the clamping is not made laterally but in the middle or that another shape of the curvature is selected.
  • the spring can also be curved and / or no height offset of the armature support point relative to the clamping or bearing point of the armature spring can be provided.
  • the bearing edge is determined by two wedge-shaped elevations 16 of the part 9, on the wedge surfaces of which the armature 11 rests in its dropped position on the end face. Furthermore, contacts 10 are provided for the electrical connection to the coil, not shown, and to the contact system, not shown, which is actuated by the armature 11.
  • FIG. 2 shows the anchor spring 1 according to the invention from FIG. 1, which, according to a further variant of the invention, is flat and essentially E-shaped, the middle web forming a spring tongue 2 on which the anchor spring 1 in the indentation 12 of the armature 11, or the surface 31 of the indentation 12, is supported, and 3 latching noses 4 are formed on the outer webs and can be latched into a fixed part of the relay in the clamping or bearing points 33.
  • the spring tongue 2 can have lateral lugs which additionally protect the armature 11 against lateral slipping.
  • recesses or projections can also be provided in the indentation 12 in order to prevent such slipping.
  • corresponding locking recesses 17 are provided in the side parts 13 of part 9 for receiving the locking lugs 4.
  • the latching noses 4 shown can, however, be designed in any other desired shape, they only have to clamp the armature spring 1 on their outer webs 3.
  • the shape of the spring tongue 2 can vary, but it must be able to intervene in the indentation 12 of the armature 11 in such a way that the curvature of the armature spring 1 that is generated exerts the force for a restoring torque. In any case, as can be seen from FIG.
  • the armature spring 1 is designed in the manner of a support which is clamped or supported on both sides, the clamping or bearing points 33 and the support point 31 of the spring 1 on or in the armature 11 at least with one another essentially aligned in one plane.
  • the indentation 12 of the armature 11 is formed by a frustoconical opening, but any other form of opening can be provided, the one wall of which is set at an angle to the acting force F.
  • the round shape of the opening also makes it difficult for the armature 11 to slide sideways, since only the low position of the spring tongue 2 in the indentation 12 is stable, while in the event of lateral slipping due to the increasing rounding of the indentation 12, centering forces on the armature 11 be exercised.
  • the armature 11 is provided with a rounded edge 75 in the area of its mounting.
  • FIG. 1 A further view of the relay according to the invention according to FIG. 1 is shown in FIG. From this view it can be seen that the spring tongue 2 is supported on the surface 31 of the indentation 12.
  • the clamping points 33 of the armature spring 1 are formed by recesses 3 of the part 9. This results in a curvature of the armature spring 1 along its longitudinal axis. This now achieved bending tension, under which the armature spring 1 is located, creates the force F acting downward on the surface 31 of the indentation 12.
  • the armature 11 When the armature 11 is tightened, the armature spring 1 is subjected to an even greater bend, so that in the tightened state against the now even more powerful torque, which wants to bring the armature 11 into the dropped state, the required attraction force for generating a counteracting torque must be applied by the magnetic field. If the excitation of the coil is ended, the armature 11 automatically goes back to its dropped position and remains there until the next excitation. In the dropped state, the armature 11 bears on its projecting side edges against projections 14 of the coil former 9.
  • Fig. 6 shows a partial view of a further variant of the invention, wherein the armature spring 101 is in the form of a conventional leaf spring with a continuous rectangular cross section without any tongues, which is clamped vertically offset at the ends with the formation of a curvature at the ends, and wherein the Deflection of the spring 101 along its longitudinal axis and parallel to the plane determined by the clamping points 33 and the support points of the armature spring 101.
  • An armature 110 has a projection 20 with a surface 31 '(FIG. 7) on which the armature spring 101 is supported. The curvature is generated by applying a corresponding force when the armature 110 is assembled with the armature spring 101.
  • the armature spring 101 can be designed without a spring tongue.
  • the surface 31 ′ is inclined in the direction from the pole surface 30 of the core 6 to the outside 32 of the armature 110, as is also the case with the surface 31 of the embossment 12 of the exemplary embodiment described above.
  • the armature spring 101 and the surface 31 ' form an angle ⁇ with one another.
  • the surface 31 'of the projection 20 on which the armature spring 101 is supported is set at an angle to the direction of the force F1 exerted by the armature spring 101, so that the armature spring 101 exerts a torque M which drives the armature 110 back into the dropped position.
  • the division of the force F1 into its components corresponds to that shown in FIG. 3a, so that one component provides a pushing back moment, while the other component brings about the necessary bearing pressure in order to secure the armature against slipping.
  • anchor springs according to the invention are also conceivable in order to ensure support on an indentation or on a projection of the anchor.
  • a shape with a central incision is also within the scope of the invention if a suitable projection is provided on the anchor.
  • the anchor spring does not have to be on the side, but can also be clamped in the middle.
  • FIG. 8 A further variant of the invention is shown in FIG. 8, wherein a wire spring tensioned between two clamping points is designed as an armature spring 201, which is supported centrally on a surface 31 "of a projection 200 of an armature 111.
  • the clamping points are opposite the support surface 31" offset in height. Due to the continuous circular cross section of the armature spring 201, in each position of the armature 111, the force F equals F1, which generates the restoring moment and thereby encloses the angle ⁇ with the perpendicular. This makes it possible to achieve a particularly space-saving way of generating a driving torque.
  • the lateral clamping points 33 of the armature spring 1 in the coil body 9 are each a small distance above the central support point 31 when the contacts 10 are regarded as the reference point.
  • the armature spring 1 is executed in its manufacture in a longitudinally curved shape, with its two ends protruding symmetrically from the center. Due to the specified curvature, the clamping points and the support point in the relay can also be arranged completely in alignment, but there is still a torque driving the armature back into its open position and the required bearing contact pressure.
  • the anchor spring 1 should be in the installed position in the longitudinal direction be as straight as possible, since this improves the vibration behavior of the armature and prevents the armature spring from being unscrewed from the support point in the event of strong alternating loads.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Magnetic Treatment Devices (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
EP95890179A 1994-10-10 1995-10-10 Relais Expired - Lifetime EP0707331B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT191194 1994-10-10
AT0191194A AT410724B (de) 1994-10-10 1994-10-10 Relais
AT1911/94 1994-10-10

Publications (2)

Publication Number Publication Date
EP0707331A1 true EP0707331A1 (fr) 1996-04-17
EP0707331B1 EP0707331B1 (fr) 1999-06-09

Family

ID=3523693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95890179A Expired - Lifetime EP0707331B1 (fr) 1994-10-10 1995-10-10 Relais

Country Status (5)

Country Link
US (1) US5627503A (fr)
EP (1) EP0707331B1 (fr)
AT (1) AT410724B (fr)
DE (1) DE59506151D1 (fr)
ES (1) ES2135033T3 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19920742A1 (de) * 1999-05-05 2000-12-07 Tyco Electronics Logistics Ag Elektromagnetisches Relais
US6679488B2 (en) 2000-05-08 2004-01-20 Tyco Electronics Amp Gmbh Armature spring for a relay
EP1469500A1 (fr) * 2003-04-15 2004-10-20 Siemens Aktiengesellschaft Système magnétique pour un relais à armature pivotante
WO2017001982A1 (fr) * 2015-06-30 2017-01-05 Tyco Electronics (Shenzhen) Co. Ltd Système magnétique de relais électromagnétique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5905422A (en) * 1996-11-26 1999-05-18 Siemens Electromechanical Components, Inc. Relay adjustment structure
DE19653105C1 (de) * 1996-12-19 1998-04-23 Siemens Ag Elektromagnetisches Relais für hohe Wärmebelastung
US20040036561A1 (en) * 2001-10-05 2004-02-26 Klaus Reiter Magnet system for an electromechanical switching device and electromagnetic relay
ATE328359T1 (de) * 2003-03-06 2006-06-15 Tyco Electronics Austria Gmbh Relais mit querschnittserweitertem kern
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.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941547C (de) * 1953-02-15 1956-04-12 Deutsche Telephonwerk Kabel Ankerlagerung fuer Kippanker-Elektromagnete
FR1163270A (fr) * 1956-12-12 1958-09-24 Vaucanson Atel Relais
DE7529555U (de) * 1975-09-18 1976-01-08 Eberle Werke Kg, 8500 Nuernberg Klappankerlagerung für Kleinrelais
DE2614943A1 (de) * 1976-04-07 1977-10-20 Ernst Duerr Elektromagnetisches kleinschaltrelais fuer hohe kontaktschaltleistung
DE3009718A1 (de) 1980-03-13 1981-09-17 Badische Telefonbau A. Heber GmbH + Co KG, 7592 Renchen Elektromagnetisches relais
EP0118097A2 (fr) * 1983-03-05 1984-09-12 Alcatel N.V. Relais électromagnétique
AT382739B (de) * 1979-10-22 1987-04-10 Schrack Elektronik Ag Elektromechanisches relais
DE9303437U1 (de) * 1993-03-09 1993-08-26 Kosowski, Dimiter, Dr.-Ing., 58509 Lüdenscheid Elektromagnetisches Kleinrelais

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2058914A1 (de) * 1970-11-30 1972-05-31 Siemens Ag Ankerlagerung fuer elektromagnetische Relais
DE4003558A1 (de) * 1990-02-06 1991-08-08 Siemens Ag Elektromagnetisches relais
DE4122704C2 (de) * 1991-07-09 1993-12-16 Siemens Ag Elektromagnetisches Relais

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941547C (de) * 1953-02-15 1956-04-12 Deutsche Telephonwerk Kabel Ankerlagerung fuer Kippanker-Elektromagnete
FR1163270A (fr) * 1956-12-12 1958-09-24 Vaucanson Atel Relais
DE7529555U (de) * 1975-09-18 1976-01-08 Eberle Werke Kg, 8500 Nuernberg Klappankerlagerung für Kleinrelais
DE2614943A1 (de) * 1976-04-07 1977-10-20 Ernst Duerr Elektromagnetisches kleinschaltrelais fuer hohe kontaktschaltleistung
AT382739B (de) * 1979-10-22 1987-04-10 Schrack Elektronik Ag Elektromechanisches relais
DE3009718A1 (de) 1980-03-13 1981-09-17 Badische Telefonbau A. Heber GmbH + Co KG, 7592 Renchen Elektromagnetisches relais
EP0118097A2 (fr) * 1983-03-05 1984-09-12 Alcatel N.V. Relais électromagnétique
DE9303437U1 (de) * 1993-03-09 1993-08-26 Kosowski, Dimiter, Dr.-Ing., 58509 Lüdenscheid Elektromagnetisches Kleinrelais

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19920742A1 (de) * 1999-05-05 2000-12-07 Tyco Electronics Logistics Ag Elektromagnetisches Relais
DE19920742C2 (de) * 1999-05-05 2001-05-31 Tyco Electronics Logistics Ag Elektromagnetisches Relais
US6679488B2 (en) 2000-05-08 2004-01-20 Tyco Electronics Amp Gmbh Armature spring for a relay
EP1469500A1 (fr) * 2003-04-15 2004-10-20 Siemens Aktiengesellschaft Système magnétique pour un relais à armature pivotante
WO2017001982A1 (fr) * 2015-06-30 2017-01-05 Tyco Electronics (Shenzhen) Co. Ltd Système magnétique de relais électromagnétique
US10770252B2 (en) 2015-06-30 2020-09-08 Tyco Electronics (Shenzhen) Co. Ltd. Magnetic system of electromagnetic relay

Also Published As

Publication number Publication date
EP0707331B1 (fr) 1999-06-09
US5627503A (en) 1997-05-06
DE59506151D1 (de) 1999-07-15
AT410724B (de) 2003-07-25
ATA191194A (de) 2002-11-15
ES2135033T3 (es) 1999-10-16

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