EP0791945B1 - Elektromagnetisches Relais mit kombinierter Kontakt-und Rückstellfeder - Google Patents

Elektromagnetisches Relais mit kombinierter Kontakt-und Rückstellfeder Download PDF

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Publication number
EP0791945B1
EP0791945B1 EP97102089A EP97102089A EP0791945B1 EP 0791945 B1 EP0791945 B1 EP 0791945B1 EP 97102089 A EP97102089 A EP 97102089A EP 97102089 A EP97102089 A EP 97102089A EP 0791945 B1 EP0791945 B1 EP 0791945B1
Authority
EP
European Patent Office
Prior art keywords
spring
contact
relay according
return
actuating member
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
EP97102089A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0791945A3 (de
EP0791945A2 (de
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
Tyco Electronics Austria 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 Tyco Electronics Austria GmbH filed Critical Tyco Electronics Austria GmbH
Publication of EP0791945A2 publication Critical patent/EP0791945A2/de
Publication of EP0791945A3 publication Critical patent/EP0791945A3/de
Application granted granted Critical
Publication of EP0791945B1 publication Critical patent/EP0791945B1/de
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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity

Definitions

  • the invention relates to an electromagnetic relay with a Magnet system, which is a coil, a fixed core-yoke arrangement and comprises a pivotably mounted anchor, also with a contact arrangement that is an elongated Contact spring with a movable contact and at least one Contact carrier includes a fixed contact, as well as with a Actuator, which on the one hand with a movable End portion of the armature and on the other hand with the contact spring is coupled, the contact spring being part of a Switch spring clamped on one side, which is also a forms return spring coupled to the actuator.
  • a Magnet system which is a coil, a fixed core-yoke arrangement and comprises a pivotably mounted anchor, also with a contact arrangement that is an elongated Contact spring with a movable contact and at least one Contact carrier includes a fixed contact, as well as with a Actuator, which on the one hand with a movable End portion of the armature and on the other hand with the contact spring is coupled, the contact spring being part of a
  • EP 0 375 398 A2 describes an unpoled relay with a flat magnet system and one below the magnet system arranged normally open contact arrangement shown.
  • the anchor reset takes place there directly through the contact spring. With this arrangement a changeover contact is difficult to implement because there are armature vibrations in the idle state directly on the break contact would impact. There is also an additional anchor spring required to keep the anchor in place.
  • the aim of the present invention is to improve the Relay mentioned in the way that with as few as possible and easily manufactured parts a compact relay structure and achieved a low-friction actuation of the contact spring can be.
  • a switching spring with a reset function is intended be realized with an exact and low friction Allows guidance of the actuator, whereby a low response power is also achieved. With appropriate Design it should also with this switch spring be able to save your own anchor spring.
  • this object is achieved in a relay of the type mentioned at the outset in that the return spring lies at least approximately in one plane with the contact spring and in that the actuating element, which is movable perpendicular to the longitudinal extension of the switching spring, is at least two articulation points along one parallel to the pivot axis of the switching spring by the return spring Line is guided.
  • a switching spring is used which essentially forms both the contact spring and the return spring in one common plane and in one piece and can be produced by a simple cutting process.
  • individual spring tabs whether for resetting or for contact actuation, for example for adjustment, are easily bent out of the common spring plane.
  • the return spring also forms at least two flush actuation points through which the actuator is gripped and guided with low friction, the spaced-apart articulation points simultaneously securing against lateral tilting and against friction on other structural parts.
  • the return spring has guidance preferably two separate return legs, either on either side of the actual contact spring on the outside or with a frame-shaped design the contact spring run inside their side legs can.
  • the actuator is in any case accordingly be designed. This offers a symmetrical design the switch spring, also with regard to a symmetrical Force distribution with as little friction as possible.
  • the two Reset leg preferably by fork-shaped design formed the return spring, these two return legs next to the side legs of the contact spring extend within their frame shape.
  • the coupling the actuator is preferably carried out by guide lugs, the opposite on the two reset legs to each other and across their longitudinal extension are angled and in mutually aligned guide grooves engage the actuator.
  • the actuator In the preferred embodiment is the actuator with its outer contour adapted the fork shape of the return spring and between them Reset legs out.
  • the contact spring is expediently via at least one actuating tabs branched from it and lying outside the current path each with an associated switch cam of the actuator, the switching cam each opposite the pivot points of the return spring in the direction of actuation is offset.
  • the one outside the current path lying operating flap has the advantage that it high switching capacities is heated less than the actual ones current-carrying areas of the contact spring. In order to one also avoids the risk of thermal deformation of the actuator.
  • two actuating tabs from the contact section the contact spring towards the inside of its frame shape branched in such a way that their ends each one Face the end of a reset leg.
  • the magnet system an essentially flat anchor that approximates extends parallel to the switching spring, at one end over a Bearing end section is mounted on a core section and with the other, movable end over the actuator biased away from the magnet system by the return spring is, the anchor with its central portion on one to Bearing axis parallel lever line of a base body swiveling rests so that its bearing end section due to the leverage is pressed into the bearing.
  • the switch spring can thus be configured via the actuator additionally push the anchor into its storage so that it also bears against the core when the magnet system is not excited, so that an additional anchor spring is not required.
  • This Function of the anchor bracket via the switching spring can be used in the Relay according to the invention advantageously also for a changeover contact be used because the holding function by the functionally separate return spring occurs and an impairment of the break contact due to the armature mass is to be feared.
  • the mentioned lever line as a pivot point for the anchor is preferably by one on the base body trained rolling edge generated. But that would also be conceivable the reverse case, that a kink formed at anchor or Unroll the roll bar on a flat surface of the body could.
  • the relay shown in Figures 1 to 7 exists according to Figure 1 from a base body 1, the one on its underside Contact arrangement 2 carries with an actuator 3, and a magnet system arranged above the base body 4.
  • the relay system is arranged in a housing that is formed by a base plate 5 and a cap 6.
  • the base body 1 is box-shaped made of insulating material and forms a partition 11 between the magnet system 4 and the contact arrangement 2, which only has an opening 12 for has the actuator 3.
  • a control room 13 formed by the side walls 14 of the Basic body is surrounded and on one side by a staged formation of the partition 11 in a contact space 13a passes with greater height.
  • a switching spring 21 over most of its length approximately parallel to the bottom of the relay by the Base plate 5 is set.
  • the switching spring 21 is flat Leaf spring cut and forms a frame-shaped contact spring 22 with current-carrying side legs 22a, which are merge towards the free end to form a contact section 22b; on this a movable contact 29 is attached.
  • two actuating tabs 22c on the contact portion 22b cut free on both sides within the frame shape, such that they point towards the clamping point.
  • the switching spring 21 forms one piece with the contact spring 22 a fork-shaped return spring 23, which is essentially starting from the attachment end 21a of the switch spring is separated from the contact spring 22 and with two Reset legs 23a substantially parallel within the Frame shape of the contact spring 22 parallel to the side legs 22a extends (see also Figure 3).
  • the return spring 23 forms a U-shape with its reset legs 23a, the to the outer contour of the actuator to be described 3 is adjusted.
  • the switching spring 21 is on a fastening end 21a Spring bracket 24 attached, which in turn via fastening tabs 24a in slots 14 on opposite Side walls 15 of the base body 1 are anchored.
  • the mounting tabs 24a have hook-shaped contours for better Anchoring; there is also a terminal lug on the spring support 24 24b formed by a corresponding Breakthrough of the base plate 5 is guided to the outside.
  • the contact arrangement further comprises an NC contact carrier 25 with an NC contact 26 and one Normally open contact carrier 27 with a normally open contact 28. Both contact carriers are via fastening sections 25a and 27a in corresponding plug-in shafts 16 of the base body 1 anchored. They also each have terminal lugs 25b or 27b, which led through the base plate 5 to the outside are.
  • the contact carriers 25 and 27 are designed and in the contact space 13a arranged so that the movable contact 29 optionally with the normally closed contact 26 and the normally open contact 28 works together.
  • the magnet system 4 arranged above the base body has a bobbin 41 with a winding 42, the axis is parallel to the bottom of the relay.
  • a core yoke 43 forms in one piece a core leg 43a, which axially extends through the entire coil, and a yoke leg 43b, which is parallel to the core leg below the coil extends close to the winding to about half the coil length.
  • An anchor 44 extends with its main part flat in extension of the yoke leg 43b, one in Cross-section recessed pole end portion 44a also Pole section 43c of the yoke leg that has a reduced cross section overlaps.
  • a bearing end portion 44b of the armature is angled towards the free core end 43d and in a pocket 45 of a bobbin flange 41a mounted so that it rolls on the free core end 43d.
  • the bobbin flange 41a surrounds this free core end 43d on three sides and secures it the bearing end portion 44b of the armature with retaining ribs 41b also against wandering away in the axial direction of the coil.
  • in the rest of this end portion 44b of the armature is passed through the restoring force of the return spring 23 in the storage pressed the core end 43d. This restoring force acts on the movable armature end 44c and pulls it away from the coil downward.
  • the switching movement of the Anchor transmits has a hook portion 31 which is essentially the opening 12 of the partition perpendicular to the base plane 11 interspersed and with its hook-shaped end on one Breakthrough 44d of the armature 44 is suspended. Over the free The end of this hook part 31 is also in the pole section 43c of the pole leg 43b is provided with a recess 43e which is a complete attachment of the anchor to the yoke leg in this Area allows.
  • the actuator has a flat foot part 32, which lies essentially in the plane of the switching spring 21 and has an M-shape in this example.
  • the middle leg of the M is connected to the hook part 31.
  • a guide groove 33 is formed, in each of which a guide tab 23b of the adjacent return leg 23a engages.
  • actuating cam 34 which is below the adjacent actuating tab 22d of the contact spring and with an upward movement of the actuator 3 brings the contact spring into the closed position.
  • the relay is installed in such a way that, on the one hand the magnet system according to Figure 4 is pre-assembled and on the other hand the contact arrangement 3 in the base body from the bottom is anchored here.
  • the magnet system according to FIG. 4 is assembled with the base body according to FIG. 5, wherein Coil connector pins 46 in corresponding openings of the Basic body are inserted.
  • the actuator 3 by the frame-shaped switching spring inserted through and hooked into the anchor.
  • the purpose of the actuator 3 is initially in an inclined position, as dashed in FIG. 2 with the reference symbol 3 ' shown, led upwards, with the hook part 31 in the Breakthrough 12 inserted and then in the final position pivoted.
  • Any plastic abrasion is also without snap-in connections avoided, which could endanger the contacts.
  • the bottom plate 5 and the cap 6 then become the housing formed, which also seals in a known manner can be.
  • FIGS. 8 and 9 show two further possible designs the switch spring and corresponding to the actuator shown.
  • the switching spring 121 according to FIG. 8 has a contact spring 122, which is a modification of the Contact spring 22 of Figure 3 now only a single, center has arranged leg, at the end of a contact section 122b carries the movable contact 29.
  • the Return spring 123 is in this case by two on both sides next to the outer sides of the contact spring return legs 123a formed, each at their free ends have outwardly angled actuating lugs 123b.
  • Corresponding the modified form of the switch spring 123 is also a modified actuator 103 is provided.
  • the two hook parts 131 extend itself up to the anchor, the anchor being natural is appropriately designed on both sides to hang to permit the hook parts 131, and also the Base body in its partition instead of the previously described central opening 12 now two outside Breakthroughs must have.
  • the spring support 24 is as in the previous one Designed embodiment.
  • FIG. 9 shows a further modification compared to FIG. 8.
  • the Switch spring 221 has a similar to switch spring 121 central contact spring 222 with a contact section 222b and a reset leg 223a formed by the outside Return spring 223, with the return leg on have a guide lug 223b at its end.
  • the actuator 203 is similar to the actuator 103 U-shaped designed. It has two hook parts 231 and one across extending foot portion 232, in which guide grooves 233 for Recording the guide tabs 223b are formed.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Braking Arrangements (AREA)
  • Mechanical Operated Clutches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Cookers (AREA)
  • Push-Button Switches (AREA)
  • Relay Circuits (AREA)
EP97102089A 1996-02-23 1997-02-10 Elektromagnetisches Relais mit kombinierter Kontakt-und Rückstellfeder Expired - Lifetime EP0791945B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19606883A DE19606883C1 (de) 1996-02-23 1996-02-23 Elektromagnetisches Relais mit kombinierter Kontakt- und Rückstellfeder
DE19606883 1996-02-23

Publications (3)

Publication Number Publication Date
EP0791945A2 EP0791945A2 (de) 1997-08-27
EP0791945A3 EP0791945A3 (de) 1998-11-18
EP0791945B1 true EP0791945B1 (de) 2002-01-09

Family

ID=7786274

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97102089A Expired - Lifetime EP0791945B1 (de) 1996-02-23 1997-02-10 Elektromagnetisches Relais mit kombinierter Kontakt-und Rückstellfeder

Country Status (6)

Country Link
US (1) US5801608A (ja)
EP (1) EP0791945B1 (ja)
JP (1) JP3902688B2 (ja)
AT (1) ATE211851T1 (ja)
DE (2) DE19606883C1 (ja)
ES (1) ES2167627T3 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627845C1 (de) * 1996-07-10 1997-09-18 Siemens Ag Verfahren zur Herstellung eines elektromagnetischen Relais
DE19816878C2 (de) 1998-04-17 2003-11-13 Hengstler Gmbh Zwillingsrelais
JP2003151419A (ja) * 2001-08-31 2003-05-23 Omron Corp 電磁継電器
DE102006007603B4 (de) * 2006-02-18 2008-04-30 Tyco Electronics Austria Gmbh Relais mit reduziertem Kriechstrom
CN101984504B (zh) * 2010-09-06 2012-11-14 厦门宏发电力电器有限公司 一种具有双柔性推动连接的磁保持继电器
CN202650990U (zh) * 2012-07-02 2013-01-02 宁波福特继电器有限公司 一种小型大功率磁保持继电器
GB201402560D0 (en) * 2014-02-13 2014-04-02 Johnson Electric Sa Improvements in or relating to electrical contactors
CN104538250B (zh) * 2015-02-03 2016-08-24 佛山市川东磁电股份有限公司 一种磁力开关
CH713442B1 (de) * 2017-02-08 2021-03-31 Elesta Gmbh Ostfildern De Zweigniederlassung Bad Ragaz Relais.
JP2022011914A (ja) * 2020-06-30 2022-01-17 富士通コンポーネント株式会社 電磁継電器
CN115831671A (zh) * 2022-11-04 2023-03-21 昆山国力电子科技股份有限公司 小尺寸高压直流接触器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2627168C3 (de) * 1976-06-16 1983-12-15 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais mit zur Ankerrückstellung dienender Kontaktfeder
DE3238223C2 (de) * 1982-10-15 1986-07-17 Standard Elektrik Lorenz Ag, 7000 Stuttgart Elektrisches Miniatur-Kompaktrelais
US4688010A (en) * 1984-12-22 1987-08-18 Matsushita Electric Works, Ltd. Electromagnetic relay
US4600909A (en) * 1985-05-20 1986-07-15 Amf Incorporated Bifurcated contact arm in a miniature relay
US4720694A (en) * 1985-05-22 1988-01-19 Siemens Aktiengesellschaft Electromagnetic relay
DE3520773C1 (de) * 1985-05-29 1989-07-20 SDS-Relais AG, 8024 Deisenhofen Elektromagnetisches Relais
DE3644172A1 (de) * 1986-12-23 1988-07-07 Bbc Brown Boveri & Cie Elektromagnetischer schalterantrieb fuer ein elektrisches schaltgeraet
EP0281384B1 (en) * 1987-03-06 1994-06-08 Takamisawa Electric Co., Ltd. Electromagnetic relay having silencing means
JPH0733344Y2 (ja) * 1988-12-23 1995-07-31 松下電工株式会社 電磁継電器
DE3908442A1 (de) * 1989-03-15 1990-10-11 Eberle Gmbh Elektromagnetisches schaltgeraet
DE9303437U1 (de) * 1993-03-09 1993-08-26 Kosowski Dimiter Dr Ing Elektromagnetisches Kleinrelais

Also Published As

Publication number Publication date
JPH09320438A (ja) 1997-12-12
ATE211851T1 (de) 2002-01-15
EP0791945A3 (de) 1998-11-18
DE19606883C1 (de) 1997-04-30
ES2167627T3 (es) 2002-05-16
US5801608A (en) 1998-09-01
JP3902688B2 (ja) 2007-04-11
EP0791945A2 (de) 1997-08-27
DE59705943D1 (de) 2002-02-14

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