EP0292423A1 - Relais électromagnétique - Google Patents

Relais électromagnétique Download PDF

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Publication number
EP0292423A1
EP0292423A1 EP88730123A EP88730123A EP0292423A1 EP 0292423 A1 EP0292423 A1 EP 0292423A1 EP 88730123 A EP88730123 A EP 88730123A EP 88730123 A EP88730123 A EP 88730123A EP 0292423 A1 EP0292423 A1 EP 0292423A1
Authority
EP
European Patent Office
Prior art keywords
lever
axis
armature
rotation
contact
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.)
Withdrawn
Application number
EP88730123A
Other languages
German (de)
English (en)
Inventor
Gerhard Lachmann
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.)
Paul & Siedler & Co KG GmbH
Original Assignee
Paul & Siedler & Co KG 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 Paul & Siedler & Co KG GmbH filed Critical Paul & Siedler & Co KG GmbH
Publication of EP0292423A1 publication Critical patent/EP0292423A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/20—Non-polarised relays with two or more independent armatures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/64—Driving arrangements between movable part of magnetic circuit and contact
    • H01H50/643—Driving arrangements between movable part of magnetic circuit and contact intermediate part performing a rotating or pivoting movement
    • 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

Definitions

  • the invention relates to an electromagnetic relay of the type specified in the preamble of claim 1.
  • a relay is known from EP-A20 213 064, which is used in particular for switching off two or more poles Is suitable for consumers and in which at least two sets of contact springs are mechanically decoupled in the opening direction, so that when one contact does not open, the at least one other contact opens unhindered.
  • a mechanical intermediate member is provided for the transmission of pressure force between the armature and one set of contact springs.
  • the specified in the characterizing part of claim 1 invention has for its object to provide a relay of the type mentioned, in which even when the force application point of the armature is arranged for structural reasons away from the free end of the contact spring, the force transmission at the contact spring in the Near this free end.
  • the lever provided for power transmission can also take over other functions for increasing the operational safety of the relay with simple additional measures, as is shown in the subclaims.
  • the mountability of the levers is facilitated by the fact that they can be easily inserted into corresponding recesses for receiving them with their rotary axes designed as stub axles, the stub axles also not limiting them in all radial directions, ie Openings that are open on one side do not fall out if they have additional lateral guides that they can only leave with the contact set and / or anchor removed.
  • the lever is advantageously provided with at least one opening.
  • the relay according to the invention is designed in particular as a double armature relay in such a way that both control elements are each driven by an armature.
  • the arrangement is also secured against failure of the contacts to open due to "sticking" of one of the anchors.
  • the base plate 1 is U-shaped and accommodates the connections 2 designed as flat plugs for contacts and drive of the relay.
  • two make contacts consisting of a fixed contact 3 and a movable spring contact 4, are provided as contact sets.
  • a cover plate 8 Placed on the base plate 1 - or inserted between the side cheeks 6 and 7 of the base plate 1 - is a cover plate 8, which likewise has a U-shaped contour and is in line with the lateral legs of the "U" supported on the side cheeks 6 and 7.
  • the cover plate 8 has passages 9 and 10 on the one hand, which enable actuation of the contact spring sets 4 in the area of the base plate through the cover plate 8 by means of levers 11 and 12 forming intermediate members.
  • a single-armed lever 11 or 12 is provided which can be rotated about an axis which is spatially essentially parallel to the axes of rotation of the armature 38 and Deflection axis of the spring 4 is directed.
  • the lever has a height that bridges the distance between the armature and the contact spring.
  • the drive element for the contact sets of the relay shown here is a solenoid 47, which is formed by a winding of enamelled copper wire on a coil body 51 and an iron core 52.
  • a yoke 53 is connected to the bobbin 51 and has at its ends extending in the longitudinal direction of the bobbin 51 web-like projections 32 and 33 or 34 and 35 which are each directed in pairs in parallel and form a U-shaped structure in the horizontal plane. which is to be regarded as "H" -shaped if all the webs 32 to 35 and the yoke are considered together.
  • a cup-shaped housing cap 36 is dimensionally adapted to the outer dimensions of the base plate 1 and is placed over the side cheeks 6 and 7, where it is kept free of play.
  • the yoke 53 is laterally delimited by the cup-shaped housing cover 36 and centered in the center.
  • Angled anchors 37 and 38 are provided on both sides of the core 52 and are rotatably supported between the web-shaped projections 32 and 33 or 34 and 35. Since the anchors form an angle which is slightly greater than 90 °, flags 39 and 40 provided at their lower angled ends act on the upper sides of the levers 11 and 12 and thus indirectly actuate the contact sets located on the base plate.
  • the two anchors 37 and 38 are held by means of "E" -shaped spring elements 41 and are pivotably mounted.
  • the two anchors are inserted laterally between the web-shaped projections 32, 33 and 34, 35 during assembly of the complete coil armature element. Due to the assembly rotated by 180 °, the two anchor parts can be of identical design, but the flags 39 and 40 lie side by side in the plane and are spatially adjacent to the two levers 11 and 12 for power transmission.
  • the "E" -shaped spring element 41 is inserted from above between the web-shaped projections 32 and 33 or 34 and 35 after the pre-assembly, the webs having steps 50 widening in the direction of the outside, behind which the outer legs of the "E" -shaped spring element are supported.
  • the middle leg of the "E” protrudes due to its spring force from the plane of the other two legs in the direction of the armature and has an elongated extension 42 which is slightly angled or bent in the direction of the armature 37.
  • the relay shown as an exemplary embodiment is equipped with two separate armatures 37 and 38, which are attracted together when the coil is permeable to current.
  • the contact sets driven by the two armatures are operated together.
  • the two contact sets containing normally open contacts are connected in series and open together when the armature drops, so that the two air gaps between the contacts open the Prevent current flow for each.
  • the lever 11 is inserted during assembly such that it is located outside the side walls 18 and 19 and can therefore first be "hooked” into the recess 17 with the stub shaft 13a with a slight inclination.
  • the stub axle 13 is then lowered into the recess 16 and, after pivoting into its operating position (cf. FIG. 1), is held between the walls 18 and 19.
  • the clearances of the contact sets when the contacts are open are so dimensioned that they each ensure a shutdown. Should it happen that one of the contacts welds or one of the anchors sticks during the operating time of the device, the current is switched off by opening the other set of contacts.
  • FIG. 4 shows a schematic perspective illustration of how a mutual locking of the levers is preferably carried out if the second folding anchor is to be prevented from responding if the first (in the case of gluing or another malfunction) has not returned to its starting position .
  • two spring wires 22 and 23 are held by means of a suitable bearing 20 so that they can oscillate around their center.
  • Recesses 24 and 25 each have the shape of two "V" s connected with the tip.
  • ramps 26 and 27 or 28 and 29 are provided which, when one lever is actuated, the movement of the other Lock the lever.
  • the control curves have inclined surfaces (the surfaces 30 and 31 on the elements 26 and 27 are visible in FIG. 4), which end in depressions 43 and 44. In the rest position, the ends of the springs 22 and 23 are just before these depressions.
  • the arrangement shown is extremely simple in construction and requires hardly any additional elements.
  • the increase in the actuating force is only slight, since a locking element which is displaceable transversely to an actuating direction to be locked can be driven with relatively small forces.
  • FIG. 5 shows a further embodiment variant of the invention, in which levers 11 ⁇ and 12 ⁇ are provided as intermediate elements, which are aligned in parallel in the same orientation, ie the axes of rotation for the levers are arranged on the same side and are congruent in the illustrated embodiment .
  • the stub axles 53 and 54 or 55 and 55a are supported between cuboid elevations 56 and 57 or 58 and 59 on the pivot bearing on the side of the free lever end or elevations 60 and 61 provided with a hook-shaped bend towards the free end of the lever
  • the hook-shaped bends which can also be provided as elevations on a corresponding side wall, do not extend to the axis, so that the levers can be removed from the bearing when they are pivoted upward by an angle (counter to the actuation path) .
  • the levers are guided in the area of their free end by elevations 62 and 63 (and corresponding elevations located on the opposite side, which are not shown in the drawing, so that they cannot move sideways within their intended swiveling range during operation the ends of the levers control cams 64 and 65 are provided, which interact with a wire spring 66, the mon at a central attachment point 67 between the levers is and extends to a side loop bend 68 to then extend stretched between the two cams.
  • the fastening point 67 has a bearing surface 69 directed towards the bearings of the levers, which forms the bearing for the "rocker" formed by the wire spring.
  • the control curves 64 and 65 are characterized by inclined edges 70 and 71, which cause the spring 66 to deflect when the corresponding lever 11 ⁇ or 12 ⁇ is depressed, so that the other end as a result of the bearing surface 69 moves in the opposite direction (to Axis of rotation of the lever).
  • the inclined edges 70, 71 are followed by steps 72 and 73, respectively, which run in the radial direction towards the axis of rotation of the levers 11 ⁇ and 12 ⁇ .
  • the wire spring In the rest position, the wire spring is in a continuation of the step in the radial direction away from the axis of rotation, so that it comes into contact with the inclined edge 70 or 71 of the control cam 64 or 65 when depressing a lever 11 or 12 and that the other end blocks the movement of the second lever through the edge of steps 72 and 73, respectively.
  • attachment 67 On the attachment 67 in the area of the contact surface 69 there is a hook-shaped projection 72 which overlaps the spring 66 and which prevents the spring from migrating upward when the levers 11 ⁇ or 12 ⁇ move back.
  • the attachment 67 is also shown in its three side views.
  • the embodiment of the invention is not limited to the preferred exemplary embodiment specified above. Rather, a number of variants are conceivable which make use of the solution shown, even in the case of fundamentally different types.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Mechanisms For Operating Contacts (AREA)
EP88730123A 1987-05-22 1988-05-24 Relais électromagnétique Withdrawn EP0292423A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3717704 1987-05-22
DE19873717704 DE3717704A1 (de) 1987-05-22 1987-05-22 Elektromagnetisches relais

Publications (1)

Publication Number Publication Date
EP0292423A1 true EP0292423A1 (fr) 1988-11-23

Family

ID=6328440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88730123A Withdrawn EP0292423A1 (fr) 1987-05-22 1988-05-24 Relais électromagnétique

Country Status (3)

Country Link
EP (1) EP0292423A1 (fr)
DE (1) DE3717704A1 (fr)
FI (1) FI882349A (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834850A (en) * 1954-02-12 1958-05-13 Essex Wire Corp Relay
DE2418497B2 (de) * 1973-04-12 1976-02-19 Kontaktfedersatz
EP0213064A2 (fr) * 1985-08-22 1987-03-04 Paul & Siedler GmbH & Co KG Relais électromagnétique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2639538C2 (de) * 1976-09-02 1978-10-26 Eberle Werke Kg, 8500 Nuernberg Vorrichtung zur Übertragung einer Schaltbewegung
DE3528948A1 (de) * 1985-08-13 1987-02-26 Sds Relais Ag Mechanische verriegelungsvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2834850A (en) * 1954-02-12 1958-05-13 Essex Wire Corp Relay
DE2418497B2 (de) * 1973-04-12 1976-02-19 Kontaktfedersatz
EP0213064A2 (fr) * 1985-08-22 1987-03-04 Paul & Siedler GmbH & Co KG Relais électromagnétique

Also Published As

Publication number Publication date
DE3717704A1 (de) 1988-12-22
FI882349A (fi) 1988-11-23
FI882349A0 (fi) 1988-05-19

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