EP0480908A2 - Relais - Google Patents

Relais Download PDF

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Publication number
EP0480908A2
EP0480908A2 EP91890244A EP91890244A EP0480908A2 EP 0480908 A2 EP0480908 A2 EP 0480908A2 EP 91890244 A EP91890244 A EP 91890244A EP 91890244 A EP91890244 A EP 91890244A EP 0480908 A2 EP0480908 A2 EP 0480908A2
Authority
EP
European Patent Office
Prior art keywords
armature
leg
yoke
coil
shorter
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
EP91890244A
Other languages
German (de)
English (en)
Other versions
EP0480908A3 (en
EP0480908B1 (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 EP0480908A2 publication Critical patent/EP0480908A2/fr
Publication of EP0480908A3 publication Critical patent/EP0480908A3/de
Application granted granted Critical
Publication of EP0480908B1 publication Critical patent/EP0480908B1/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
    • 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
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H01H50/041—Details concerning assembly of relays
    • H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support

Definitions

  • the invention relates to a relay with a magnet system consisting of a yoke and an armature, in which the armature is mounted on the yoke and a coil, the armature and the yoke engaging with one leg in the coil.
  • Such a relay was e.g. known by the EU B1 70 717.
  • the yoke consists of two parts with a U-shaped cross section, the legs of which are of unequal length. The longer legs of the yoke are connected to one another on the outside of the coil, the legs of the yoke parts in their connecting area being only half the thickness and lying flat against one another.
  • the air gap remaining between them requires a corresponding magnetization, which must be applied by the coil.
  • the shorter legs of the two yoke parts engage in the interior of the coil, a relatively large air gap remaining between the mutually facing end faces of the legs of the yoke engaging in the coil.
  • the armature is held on a spring and is in the known relay in the dropped state inside the coil on the shorter leg of one part of the yoke with an edge and is dimensioned so that it faces over the edges of the air gap between the two End faces of the two parts of the yoke extends beyond.
  • the disadvantage of this known solution is that a total of three air gaps result due to the yoke divided in two, and so on. the yoke between the two parts, and in two places between the yoke and the anchor.
  • the magnetic frame consists of three parts that have to be produced accordingly, the reduction in the thickness of the two longer legs in their connection area in particular causing certain problems and costs.
  • the assembly of such a relay requires a corresponding assembly effort.
  • the object of the invention is to propose a relay of the type mentioned, which is easier to manufacture. Furthermore, the invention has also set itself the task of creating a relay compared to the prior art, which can be realized with a smaller number of individual parts. Another object of the invention can also be that the moving parts have little play.
  • the invention is that the armature is L-shaped and is mounted with its shorter leg on the longer leg of the U-shaped, integrally formed yoke running on the outside of the coil, the shorter leg of the yoke engages in the interior of the coil.
  • the solution according to the invention also has the advantage of simpler assembly of this relay due to the smaller number of parts. Furthermore, a yoke, as provided according to the invention, can also be produced more easily, since it is only necessary to bend a correspondingly cut sheet metal strip in a U-shape, which is also necessary in the case of the known solution, but with two parts per relay .
  • the procedure can be such that the longer leg of the armature is designed as a double-armed lever by being supported on the inner wall of the coil or of the coil body. In this way, it is possible in a simple manner for a normally open contact relay to implement the required armature bearing pressure on the yoke, but in particular there is no need for a separate armature spring.
  • the armature is mounted on the yoke with the edge facing away from the end face of the coil.
  • the end face of the shorter arm of the armature it is also possible for the end face of the shorter arm of the armature to be curved.
  • the armature engages with its shorter leg in a recess of the leg running on the outside of the coil.
  • the armature is mounted with its shorter leg in the walls of a housing, with projections projecting laterally from the shorter arm of the armature, which engage in recesses in the walls of the housing.
  • This variant has the advantage that no depressions have to be impressed on the yoke, but that they are simply made in the housing produced by injection molding. Due to the protrusions protruding to the side, the game can be kept correspondingly low.
  • the shorter leg of the armature has a width which is at least equal to the width of the leg of the yoke running on the outside of the coil, the width of this leg of the yoke being greater than the width of the in the Inside the coil engaging leg of the armature is.
  • the armature is pressed with its shorter leg against the leg of the yoke by means of a spring engaging on this and the leg of the yoke located on the outside of the coil.
  • the spring is designed as a U-shaped leaf spring which at least partially encompasses the longer leg of the yoke and the shorter leg of the armature.
  • the yoke 1 is U-shaped, but the leg 3 engaging in the interior of the coil 2 is shorter than the leg 4 running on the outside of the coil 2, the free end of which leg extends over the end face 5 of the coil 2, or its coil former 6 protrudes.
  • the leg 3 of the yoke 1 engaging in the coil 2 has a smaller width than the leg 4 running on the outside of the coil 2.
  • the armature 7, which is L-shaped, is mounted with its shorter leg 8, the type of mounting being able to be varied.
  • the shorter leg 8 of the armature 7 is supported on the yoke 1 with its edge 10 facing away from the end face 5 of the coil 2.
  • the longer leg 9 of the armature 7 passes through the interior of the coil 2.
  • the width of the longer leg 9 of the armature 7 and the width of the leg 3 of the yoke 1 engaging in the interior of the coil 2 corresponds to the clear width of the interior of the coil, wherein of course, a corresponding game is provided.
  • the shorter leg 8 has a width exceeding the width of the longer leg 9, which corresponds to that of the width of the longer leg 4 of the yoke 1 extending on the outside of the coil 2.
  • a corresponding transmission element for actuating the contact spring set, not shown in FIG. 1, can act on the region of the longer leg 9 of the armature 7 which has a smaller thickness.
  • the armature 7 is provided with projections 11 projecting laterally from its shorter leg 8 formed with cambered end faces 25, which are arranged coaxially with one another and engage in recesses 12 of a housing 13 partially surrounding the coil 2, at which the reels of the coil 2 are passed laterally and are connected to connecting pins 14.
  • the contact spring set 17, also provided with connecting pins 16, is held in a frame 18 connected to the housing 13.
  • the movable contact spring 19 is actuated by means of a transmission element 20 which engages in bores of the armature 7. Furthermore, a cover 21 surrounding the relay is provided.
  • the longer leg 9 of the armature 7 is supported on the inner wall of the coil 2 or the coil body; the support point represents a pivot point 22.
  • Such a longer leg 9 of the armature 7 is designed as a double-armed lever.
  • the shorter leg 8 with lateral projections is mounted in the housing 13.
  • FIG. 4 shows a further variant of the mounting of the armature 7 on the yoke 1.
  • a depression 23 is arranged near the free end of this leg 4, into which the shorter leg 8 of the anchor engages, the end face of the shorter leg 8 is convex.
  • the armature 7 is pressed by means of a U-shaped leaf spring 24 against the yoke 1, which engages around the longer leg 4 of the yoke 1 and the shorter leg 8 of the armature 7 and is simply attached to these two parts .
  • This type of bearing is particularly suitable for relays with changeover contacts.
  • the longer leg 4 of the yoke which extends on the outside of the coil, has a width which corresponds to the width of the coil 2, the shorter leg 8 of the armature also having this width.
  • the shorter legs of the yoke 1 and the armature 7 have a width which enables these parts to be inserted into the interior of the coil 2.
  • the longer leg 9 has a decreasing thickness in the region near its free end, the thickness of the longer leg 9 decreasing progressively in the relay according to FIG. 2, whereas in the relay according to FIG. 3, the thickness is reduced in stages of the leg 9 is given.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
EP91890244A 1990-10-12 1991-10-11 Relais Expired - Lifetime EP0480908B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT206690A AT408928B (de) 1990-10-12 1990-10-12 Relais
AT2066/90 1990-10-12

Publications (3)

Publication Number Publication Date
EP0480908A2 true EP0480908A2 (fr) 1992-04-15
EP0480908A3 EP0480908A3 (en) 1993-03-17
EP0480908B1 EP0480908B1 (fr) 1996-07-10

Family

ID=3527047

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91890244A Expired - Lifetime EP0480908B1 (fr) 1990-10-12 1991-10-11 Relais

Country Status (4)

Country Link
EP (1) EP0480908B1 (fr)
AT (1) AT408928B (fr)
DE (1) DE59107988D1 (fr)
ES (1) ES2089178T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6608542B2 (en) 2001-08-10 2003-08-19 Tyco Electronics Amp Gmbh Switching relay with improved armature spring
CN112262452A (zh) * 2018-04-24 2021-01-22 菲尼克斯电气公司 继电器
CN112271120A (zh) * 2020-10-31 2021-01-26 中韶电气股份有限公司 减少空间占用的小型断路器的磁系统

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10300036B4 (de) * 2002-01-12 2009-08-13 Tyco Electronics Amp Gmbh Magnetsystem, insbesondere für ein elektromagnetisches Relais

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2813822C2 (de) * 1978-03-31 1982-11-18 Rausch & Pausch, 8672 Selb Elektromagnetisches Schaltrelais
DE3008295A1 (de) * 1980-01-22 1981-09-24 Mecanismos Auxiliares Industriales, S.A. M.A.I.S.A., Valls, Tarragona Klappankerrelais
CA1162218A (fr) * 1981-04-06 1984-02-14 Sds Elektro Gmbh Relais electromagnetique
DE3303666A1 (de) * 1983-02-03 1984-08-09 Hans 8024 Deisenhofen Sauer Relais mit wenigstens einem, innerhalb des spulenkoerpers schwenkbeweglich gelagerten anker
US4689587A (en) * 1985-05-22 1987-08-25 Siemens Aktiengesellschaft Electromagnetic relay
DE3518397A1 (de) * 1985-05-22 1986-11-27 Siemens AG, 1000 Berlin und 8000 München Lageranordnung fuer den anker eines elektromagnetischen relais
US4720694A (en) * 1985-05-22 1988-01-19 Siemens Aktiengesellschaft Electromagnetic relay
US4879536A (en) * 1987-09-30 1989-11-07 Anritsu Corporation Electromagnetic relay
JPH0733344Y2 (ja) * 1988-12-23 1995-07-31 松下電工株式会社 電磁継電器

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6608542B2 (en) 2001-08-10 2003-08-19 Tyco Electronics Amp Gmbh Switching relay with improved armature spring
CN112262452A (zh) * 2018-04-24 2021-01-22 菲尼克斯电气公司 继电器
CN112262452B (zh) * 2018-04-24 2023-09-15 菲尼克斯电气公司 继电器
CN112271120A (zh) * 2020-10-31 2021-01-26 中韶电气股份有限公司 减少空间占用的小型断路器的磁系统

Also Published As

Publication number Publication date
DE59107988D1 (de) 1996-08-14
ES2089178T3 (es) 1996-10-01
EP0480908A3 (en) 1993-03-17
AT408928B (de) 2002-04-25
ATA206690A (de) 2001-08-15
EP0480908B1 (fr) 1996-07-10

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