EP0130511A2 - Relais électromagnétique avec un ressort de contact inverseur - Google Patents

Relais électromagnétique avec un ressort de contact inverseur Download PDF

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Publication number
EP0130511A2
EP0130511A2 EP84107230A EP84107230A EP0130511A2 EP 0130511 A2 EP0130511 A2 EP 0130511A2 EP 84107230 A EP84107230 A EP 84107230A EP 84107230 A EP84107230 A EP 84107230A EP 0130511 A2 EP0130511 A2 EP 0130511A2
Authority
EP
European Patent Office
Prior art keywords
rocker
armature
foot piece
opening
spring
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
EP84107230A
Other languages
German (de)
English (en)
Other versions
EP0130511A3 (en
EP0130511B1 (fr
Inventor
Reiner Rudolf
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.)
Hengstler GmbH
Original Assignee
Hengstler 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 Hengstler GmbH filed Critical Hengstler GmbH
Priority to AT84107230T priority Critical patent/ATE44113T1/de
Publication of EP0130511A2 publication Critical patent/EP0130511A2/fr
Publication of EP0130511A3 publication Critical patent/EP0130511A3/de
Application granted granted Critical
Publication of EP0130511B1 publication Critical patent/EP0130511B1/fr
Expired 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
    • H01H50/60—Contact arrangements moving contact being rigidly combined with movable part of magnetic circuit
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2075—T-shaped bridge; bridging contact has lateral arm for mounting resiliently or on a pivot
    • 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
    • H01H50/32—Latching movable parts mechanically
    • H01H50/326—Latching movable parts mechanically with manual intervention, e.g. for testing, resetting or mode selection
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2227—Polarised relays in which the movable part comprises at least one permanent magnet, sandwiched between pole-plates, each forming an active air-gap with parts of the stationary magnetic circuit

Definitions

  • the invention relates to an electromagnetic relay, consisting of a drive system with excitation coil and yoke plates, which form a closed magnetic circuit with a pivotable armature, the armature being connected to a changeover spring, the contacts of which cooperate with fixed contacts on the spring bracket.
  • a relay mentioned at the outset has become known, for example, from DE-OS 30 21 184, which goes back to the same applicant.
  • This known relay is bistable and the armature is designed as a movable rocker.
  • the changeover spring arranged on the rocker together with the rocker itself forms a considerable mass.
  • the center of gravity of the entire arrangement is not at the fulcrum, but at a distance from it, which results in an increased moment of inertia and the switching behavior of the relay can be optimized.
  • the present invention has for its object to develop a relay of the type mentioned so that the moving mass can be significantly reduced.
  • the invention is characterized in that the changeover spring has an injection-molded plastic foot piece, which is detachably fastened in an assigned opening of the armature so as to be secured against rotation and displacement.
  • An essential feature of the present invention is therefore the interchangeability of the changeover spring in the area of the armature.
  • the switchover spring is secured with a radial and axial displacement lock in the armature.
  • the present invention can thus be used for both monostable and bistable relays, ie the armature can consist of a metal part (for example for a monostable relay), while in the embodiment of a bistable relay the armature is designed as a swiveling rocker which is between them same anchor plates has a permanent magnet.
  • the releasable attachment of the changeover spring in the area of the armature or the rocker can be solved in various ways. It is only important that the changeover spring can be replaced at any time and that radial and axial displacement protection is ensured. This makes it possible, for example, to construct a relay in a modular manner and to replace a changeover spring of a special design with another changeover spring.
  • the change-over spring has an injection-molded plastic foot piece, which is mounted in an opening of the rocker so as to prevent radial and axial displacement.
  • a preferred embodiment of a radial anti-displacement device is according to the subject matter of claim 4 that laterally protruding projections are arranged at the rear end of the foot piece, that the foot piece fits in one rotational position through the opening of the armature or the rocker and that in the 90 ° rotated twist position the footpiece with its projections engages behind associated undercuts in the area of the plate, the anchor or the rocker.
  • a special embodiment of an axial displacement lock is formed according to the subject of claim 5 in that a first anchor plate is arranged on the end face of the foot piece engaging in the opening, which is arranged secured against displacement on the back of the plate of the rocker that below the first anchor plate Is arranged permanent magnet, which in turn is covered by a second anchor plate, which are axially secured against displacement and releasably attached to the rocker by means of locking lugs arranged on the side surfaces of the rocker.
  • the anchor plate held by the locking lug must first be released from the rocker in order to remove the permanent magnet and then to remove the anchor plate resting on the end face of the foot piece. Only then can the foot of the changeover spring be moved axially inwards by a short distance, rotated, in order to be pulled out of the opening of the rocker.
  • the relay according to the invention consists of a cover 1 with a spring bracket 2, which has a contact carrier 3, which has three pieces of clamping screws 4 and three pieces of hollow terminals 5.
  • the contact carrier 3 consists at its upper part of a bent metal bracket which merges into a fixed contact 6.
  • switching spring 9 which is designed as a bridge contact, i.e. it is always in contact with a fixed center contact, the bridge spring is arranged at the free end of a stamped part 10 and sits with its foot piece in a rocker 11 which is pivotally fastened in a bearing plate 12 which is riveted to the magnetic part.
  • an outer, circumferential bracket 13 made of plastic is provided.
  • a relay coil 14 with connections 15 and 16.
  • the relay coil 14 acts on two yoke plates 17.38.
  • the rocker 11 is extended via a handle 18 and extends through a corresponding recess 19 in the cover 1, so that it can be operated manually.
  • the rocker preferably consists of a plastic part with an elongated plate 20 into which an opening 21 is embedded.
  • the changeover spring 9 is seated with a foot piece 22 made of insulating material. It is important here that the stamped part 10 is completely surrounded by the plastic material and the changeover spring 9 is introduced into the recess 21 on the rocker 11 by a rotary movement.
  • the rotary movement is in the direction of arrow 23, and the foot piece is inserted into this recess in the manner of a bayonet coupling.
  • the recess is provided with an undercut 24 in which the foot piece 22 of the changeover spring engages.
  • the undercut 24 is shown enlarged in FIG. 6 and is shown in more detail there.
  • the rocker 11 also consists of two lateral bearing arms 25 and 26; outwardly projecting bearing bolts 27, 28 are arranged on each bearing arm.
  • each bearing arm Arranged lugs 29,30, the function of which will be described later.
  • an anchor plate 32 is arranged behind the foot piece 22 in the area on the rear of the bearing plate 20 of the rocker 11, in which holes are arranged which are arranged on correspondingly arranged locking pins 33, 34 the plate 20 rests.
  • a permanent magnet 35 is attached to the back of the bearing plate 20, which in turn is held by a double-T-shaped anchor plate 36 from the back.
  • the anchor plates 32, 36 are exactly the same.
  • the anchor plate 36 is held by the locking lugs 29, 30 of the rocker 11.
  • the magnet 35 and the first armature plate 32 are thus axially braced against the changeover spring 9.
  • the locking lugs 29, 30 are snapped onto the corresponding bearing plate 36 with their locking openings.
  • the bearing bolts 27, 28 and the undercut 24 can be seen in the region of the recess 21.
  • the changeover spring is shown in more detail in FIGS. 7 and 8. It is important that there are lower projections 37 in the foot piece 22, which engage in a rotary movement in the undercuts 24, which are circular in the area of the recess 21.
  • the entire switching spring is secured against radial rotation and the axial displacement protection is effected by the bearing plate 32 arranged behind it with the magnet 35 and the further bearing plate 36, which cooperates with the latching lugs 29, 30.
  • the version with a bistable relay has the additional advantage that the mounting of the anchor plates and the permanent magnet is very simple.
  • this relay can also be designed with a make contact, the external contact carriers are then bridged with the contact bridge.
  • the contact distance therefore doubles compared to the one-time switchover variant.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Relay Circuits (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP84107230A 1983-06-28 1984-06-23 Relais électromagnétique avec un ressort de contact inverseur Expired EP0130511B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84107230T ATE44113T1 (de) 1983-06-28 1984-06-23 Elektromagnetisches relais mit umschaltfeder.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3323266A DE3323266C2 (de) 1983-06-28 1983-06-28 Elektromagnetisches Relais mit Umschaltfeder
DE3323266 1983-06-28

Publications (3)

Publication Number Publication Date
EP0130511A2 true EP0130511A2 (fr) 1985-01-09
EP0130511A3 EP0130511A3 (en) 1986-10-01
EP0130511B1 EP0130511B1 (fr) 1989-06-14

Family

ID=6202597

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84107230A Expired EP0130511B1 (fr) 1983-06-28 1984-06-23 Relais électromagnétique avec un ressort de contact inverseur

Country Status (4)

Country Link
US (1) US4620172A (fr)
EP (1) EP0130511B1 (fr)
AT (1) ATE44113T1 (fr)
DE (2) DE3323266C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758412A1 (fr) * 1997-01-14 1998-07-17 Schneider Electric Sa Appareil interrupteur electromagnetique
US11731391B2 (en) 2019-05-23 2023-08-22 Awi Licensing Llc Fire resistant low density acoustic panel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6084488A (en) * 1998-04-03 2000-07-04 Pass & Seymour, Inc. Compact high current relay
DE102004018791A1 (de) * 2004-04-15 2005-11-03 Tyco Electronics Amp Gmbh Relaisantrieb, Relais und Bausatz für monostabiles und bistabiles Relais
CN1321430C (zh) * 2006-03-06 2007-06-13 通领科技集团有限公司 具有压力平衡自动补偿的接地故障断路器动作机构

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US306874A (en) * 1884-10-21 Carriage-top prop
US402132A (en) * 1889-04-30 Albert g
DE901216C (de) * 1951-11-30 1954-01-07 Mix & Genest Ag Relais, dessen Kontaktfedersatz aus nicht vorgespannten Kontaktfedern besteht
NL94917C (fr) * 1957-02-28
US2896045A (en) * 1957-11-08 1959-07-21 American Nat Bank Relay with clamp-contact assembly
US3295078A (en) * 1964-12-16 1966-12-27 Guardian Electric Mfg Company Relay
US3470504A (en) * 1967-09-15 1969-09-30 Henry Rogers Mallory Polarized electrical relay
JPS538901B2 (fr) * 1971-09-01 1978-04-01
US4259652A (en) * 1979-04-30 1981-03-31 Eltra Corporation Reversing relay for permanent magnet DC motor
FR2486303A1 (fr) * 1980-03-21 1982-01-08 Bernier Et Cie Ets Relais electromagnetique a armature pivotante a aimant permanent
DE3021184A1 (de) * 1980-06-04 1982-02-04 E. Haller & Co, 7209 Wehingen Relais zum schalten hoher stroeme
DE3118292C2 (de) * 1981-05-08 1983-02-10 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais
DE8235283U1 (de) * 1982-12-15 1983-06-09 Siemens AG, 1000 Berlin und 8000 München Elektromagnetisches Relais

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758412A1 (fr) * 1997-01-14 1998-07-17 Schneider Electric Sa Appareil interrupteur electromagnetique
EP0854489A1 (fr) * 1997-01-14 1998-07-22 Schneider Electric Sa Appareil interrupteur électromagnétique
US11731391B2 (en) 2019-05-23 2023-08-22 Awi Licensing Llc Fire resistant low density acoustic panel

Also Published As

Publication number Publication date
EP0130511A3 (en) 1986-10-01
DE3478728D1 (en) 1989-07-20
EP0130511B1 (fr) 1989-06-14
ATE44113T1 (de) 1989-06-15
DE3323266A1 (de) 1985-01-10
US4620172A (en) 1986-10-28
DE3323266C2 (de) 1987-01-02

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