US1812545A - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
US1812545A
US1812545A US387739A US38773929A US1812545A US 1812545 A US1812545 A US 1812545A US 387739 A US387739 A US 387739A US 38773929 A US38773929 A US 38773929A US 1812545 A US1812545 A US 1812545A
Authority
US
United States
Prior art keywords
legs
armature
core
plate
electromagnetic 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.)
Expired - Lifetime
Application number
US387739A
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English (en)
Inventor
Nilson Carl Erik Jean
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of US1812545A publication Critical patent/US1812545A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/14—Pivoting armatures
    • 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
    • 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
    • H01H50/34—Means for adjusting limits of movement; Mechanical means for adjusting returning force

Definitions

  • the present invention relates to electromagnetic relays provided with an U-shaped or similar magnet core. More especially the invention refers to such relays in which the a magnet core consists of a stamped out, prefup flange 5 for erably plane plate piece.
  • the invention has for its object to provide improved means for pivoting the armature on the magnet core in order to facilitate the application of cheap manufacturing methods suitable in mass production.
  • the invention is substantially characterized by the disposition of the armature inside a pocket. or the like formed by the magnet core and a thereto fixed plate in the bottom of which pocket the armature is so pivoted that it is swingable about an axis parallel with aplane through the legs of the magnet core.
  • Fig. 1 is a side elevation
  • Fig. 2 a plan view
  • Fig. 3 an end view of a relay according to the invention.
  • Fig. 4 is an assembly of the magnet core and the magnet coil.
  • Fig. 5 is a side elevation
  • Fig. 6 a plan view
  • Fig. 7 an end view of another embodiment.
  • Fig. 8 shows the magnet core in the latter embodiment.
  • Fig. 9 is an end view and Fig. 10a side view of a diiferently designed relay provided with an elastic arrangement for the armature according to a modified embodiment.
  • the magnet core consists of a stamped out sheet metal piece 1, forming three legs 2, 3, 4.
  • the rear ed e of said piece forms a bent fixing the relay to a support.
  • the magnet coil 6 is disposed on the middle leg the magnet flux then being branched through the legs 2 and 4.
  • the magnetcore is thus substantially of the E-shaped type.
  • the armature 7 consists of a rectangular sheet metal piece which is disposed across the front ends of the legs 2, 8, 4 and pivoted inside a substantially wedge-shaped pocket or the like formed by one of the magnet legs and a late 8.
  • the plate 8 consists of a stampe out sheet metal piece which.
  • the armature 7 is disposed in such a manner that it is swingable about an axis extending close to and-parallel with the bottom edge of the pocket the bottom of which thus forms a groove which serves as a hearing for the armature in such a manner that the armature, on the one side, is supported by the plate 8 and, on the other side, by the legs 2, 3, 4.
  • the armature is supported by the plate 8 through the intermedium of two wire springs 10, 10 which by their one end are connected to the plate 8 by means of screws .11 and by their other ends are united with the armature close to its axis of rotation by means of screws 12 the heads of which extend through holes 13 in-the plate 8.
  • the armature is normally held bearing agains the inside of the plate 8.
  • the contact springs of the relay in the shown example constitute two sets of contacts 14, 15 which are disposed on the bottom side of the legs 2, 4 and secured to an insulating piece 16 which in turn is secured to the magnet core.
  • the contact springs are actuated in the usual manner by means of studs 17, 18 in ordinary manner extending through holes in the legs 2, 4.
  • By means of an ad]usting screw 19 tapped into the plate 8 the distance between the plateand the mag net core is adjustable to the extent allowed by the flexibility of the plate 8 in order to the cost of manufacturing being thus considerably reduced.
  • the embodiment according to Figs. 5 to 8 differs from the above described embodiment substantially only in that the magnet core has only two legs 3, 4 and in that the armature is swingably disposed about an axis parallel with the longitudinal direction of the legs.
  • the plate 8 is'for this reason secured to the side edge of the leg 3. Otherwise the mounting of the armature in relation to the plate 8 is the same as described above-
  • the adjustment screw 19 bears in this case against a projection 21 on the leg 4.
  • the relay is intended to be secured to a support by means of a bolt 22 riveted to a magnet core.
  • Figs. 9 and 10 show the application of the above described elastic arrangement for the armature in a differently designed relay.
  • the armature 23 is pivoted on a back strap 25 rigidly secured to the magnet core 24.
  • the spring actuating the armature consists of a steel Wire piece 26 which by its one end is securedto the armature close to its pivotby means of a screw 27 and, by its other end, isinserted into a hole in an adjustable support 28 consisting of a plate washer which by means of a screw 29 is secured to a fixed member 30 which may form part of the relay support or of the magnet core.
  • An electromagnetic relay comprising a flat iron core having three legs arranged with their broad sides parallel with a plane through said legs, a coil on the middle one of said legs, and a flat iron armature mounted on the one side of the legs and swingable about an axis parallel with the core plane and perpendicular to the legs.
  • An electromagnetic relay comprising a flat iron core having three legs arranged with their broad sides parallel with a plane through said legs, a coil on the middle one of said legs, and a flat iron aunature mounted on the one side of the legs and 'swingable about an axis perpen lar tog-the legs and located at the outer e of thelegs so as t. be attracted against sides'of the le 3.
  • flat iron core having three legs arranged with their broad sides parallel with a plane through said legs, a coil on the middle one of said legs, a fiat iron armature mounted on; the one side of the legs and swingable about an axis arallel with the core plane and pe pendicu ar to the legs, and sets of.conta springs arranged on both sides of the coil and mounted on the two outer, legs.
  • An electromagnetic relay comprising a flat iron core having three legs arranged with their broad sides parallel with a plane through said legs, a coil on the middle one of said legs, a flat iron armature mounted on the one side of the legs and swingable about pendicular to the legs, sets of contact springs arranged on both sides of the coil and mounted on the two outer legs, said outer legs having holes therein, and means for operating said spring sets projecting through holes; in said outer legs.
  • An electromagnetic relay comprising a flat iron core having legs arranged with their broad sides parallel with a plane through said legs, a coil on one of said legs, a flat iron armature mounted on the one side of the legs and swingable about an axis parallel withthe core plane, and a non-magnetic support for said armature consisting of a plate rigidly secured to the iron core so as to form with the sides of the legs a wedge-shaped pocket in the bottom of which the armature is pivoted, said plate being adapted to form an abutment for the armature and a fixture for the counter-spring of the armature.
  • An electromagnetic relay comprising aflat iron core having legs arranged with their broad sides parallel with a plane through said legs, a coil on one of said legs, a flat iron armature mounted on the one side of the 1e and swingable about an axis parallel wit the core plane, a. non-magnetic support for to the plate by means of springs securedto the plate and united with the armature close to its swinging axis.
  • An electromagnetic relay comprising a flat iron core having three legs arranged'wlth their broad sides parallel with a plane through said legs, a coil on the middle one of said legs, a flat iron armature mounted on the one side of the legs and swingable about.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
US387739A 1928-08-24 1929-08-22 Electromagnetic relay Expired - Lifetime US1812545A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE317853X 1928-08-24

Publications (1)

Publication Number Publication Date
US1812545A true US1812545A (en) 1931-06-30

Family

ID=20307764

Family Applications (1)

Application Number Title Priority Date Filing Date
US387739A Expired - Lifetime US1812545A (en) 1928-08-24 1929-08-22 Electromagnetic relay

Country Status (6)

Country Link
US (1) US1812545A (en))
BE (1) BE363226A (en))
DE (1) DE556811C (en))
FR (1) FR680516A (en))
GB (1) GB317853A (en))
NL (1) NL29697C (en))

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2540808A (en) * 1948-07-16 1951-02-06 Veeder Root Inc Counting mechanism
US2562091A (en) * 1946-08-28 1951-07-24 Bell Telephone Labor Inc Relay
US2693554A (en) * 1950-06-22 1954-11-02 Vigren Sten Daniel Electrical control magnet
US2858488A (en) * 1955-02-19 1958-10-28 Pettersson Gustaf Adolf Electromagnetic relay
US2982833A (en) * 1952-08-09 1961-05-02 Vigren Sten Daniel Electric control magnets
US3501720A (en) * 1965-12-28 1970-03-17 Int Standard Electric Corp Miniature relay for use in printed circuits
US3501719A (en) * 1968-08-09 1970-03-17 American Mach & Foundry Relay construction

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH309315A (de) * 1951-10-03 1955-08-31 Daniel Vigren Sten Elektromagnetisches Steuergerät, insbesondere für elektrische Schaltvorrichtungen.
BE520172A (en)) * 1952-05-24
DE2656910C2 (de) * 1976-12-16 1985-08-29 Baco Constructions Electriques Anc. Baumgarten, Straßburg-Meinau Magnetsystem für einen Haltemagnetauslöser zur Verwendung in einem Fehlerstromschutzschalter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2562091A (en) * 1946-08-28 1951-07-24 Bell Telephone Labor Inc Relay
US2540808A (en) * 1948-07-16 1951-02-06 Veeder Root Inc Counting mechanism
US2693554A (en) * 1950-06-22 1954-11-02 Vigren Sten Daniel Electrical control magnet
US2786163A (en) * 1950-06-22 1957-03-19 Vigren Sten Daniel Electromagnetic switching devices
DE966844C (de) * 1950-06-22 1957-09-12 Rolf Albin Zander Elektrischer Steuermagnet
US2913551A (en) * 1950-06-22 1959-11-17 Vigren Sten Daniel Switch group
US2982833A (en) * 1952-08-09 1961-05-02 Vigren Sten Daniel Electric control magnets
US2858488A (en) * 1955-02-19 1958-10-28 Pettersson Gustaf Adolf Electromagnetic relay
US3501720A (en) * 1965-12-28 1970-03-17 Int Standard Electric Corp Miniature relay for use in printed circuits
US3501719A (en) * 1968-08-09 1970-03-17 American Mach & Foundry Relay construction

Also Published As

Publication number Publication date
NL29697C (en))
DE556811C (de) 1932-08-15
GB317853A (en) 1931-02-17
BE363226A (en))
FR680516A (fr) 1930-05-01

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