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US3836878A - Tilting system - Google Patents

Tilting system Download PDF

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Publication number
US3836878A
US3836878A US00411369A US41136973A US3836878A US 3836878 A US3836878 A US 3836878A US 00411369 A US00411369 A US 00411369A US 41136973 A US41136973 A US 41136973A US 3836878 A US3836878 A US 3836878A
Authority
US
United States
Prior art keywords
armature
core
yoke
coil
end plate
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
US00411369A
Other languages
English (en)
Inventor
W Minks
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.)
Alcatel Lucent NV
Original Assignee
International Standard Electric Corp
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
Priority claimed from DE19722253456 external-priority patent/DE2253456C3/de
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US3836878A publication Critical patent/US3836878A/en
Assigned to ALCATEL N.V., DE LAIRESSESTRAAT 153, 1075 HK AMSTERDAM, THE NETHERLANDS, A CORP OF THE NETHERLANDS reassignment ALCATEL N.V., DE LAIRESSESTRAAT 153, 1075 HK AMSTERDAM, THE NETHERLANDS, A CORP OF THE NETHERLANDS ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: INTERNATIONAL STANDARD ELECTRIC CORPORATION, A CORP OF 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
    • H01H50/16—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
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case

Definitions

  • ABSTRACT A relay or similar electromagnetic device in which an armature is tilted in response to the operating mag netic flux, and in which an orthogonal tilt freedom is provided to increase the ability of the relay to free sticking contacts, particularly in a double pole arrangement.
  • the present invention relates generally to electromagnetic/mechanical control, and more particularly to relays.
  • An arrangement which employs an E-core, on the center core plate of which the coil is wound.
  • FIG. 1 shows the entire electromagnetic/mechanical system of a relay according to the invention, in exploded viewform.
  • FIG. 2a shows the system of FIG. 1 in the operative position.
  • FIG. 2b shows the same system in the non-operative A posiiton.
  • FIG. 3a shows the armature in a non-tilted position.
  • FIG. 3bv shows the armature as tilted towards the right.
  • FIG. 4a' shows a section taken through the front plate of the armatureas marked on FIG.4'b.
  • FIG. 4b shows a detail of the front plate of the armature.
  • the givenproblem" is solved advantageously when the yoke is designed as an L-shaped plate, with the shorter portion ofthe plate extending parallel with a first end face of the coil. Accordingly then the core of the coil at that end is firmly anchored" v DESCRIPTION OF, THE PREFERRED EMBODIMENT
  • the magnetic circuit of the system will be seento consist of the L-shapedly bent yoke 2,'to the smaller surface of which there 'is to be firmly anchored, the coil I with its core end la.
  • the I magnetic'circuit is completed by the U-shaped armature 3 whose front plate 31 extends parallel with the free coil face end 1b (and, core end 10).
  • this extended portion of the front plate3l of thearrnatureto be in direct contact with the yoke 2 to enhance the magnetic flux between the yoke 2 and the armature 3, i.e., to decrease airgap reluctances in the magnetic circuit.
  • the annature is seen, in its operative position, well set with'the surfacesof the armature anns 32 (and 33) seated on the yoke 2, and the frontpl'ate 31v of the armature is seated against the core end 1c of the-magnet (field) coil 1.
  • the free ends of the armature arms 32 andj33 are provided with holes into which a rod (typically 36) is fitted.
  • a linkage part 3.7 and another rod 38 provide a linkage assembly of ,a known type.
  • the relay contact spring leaf 4 is deflected downward by this linkage, and contact is made between 5a and 5c.
  • FIG. 2b shows the same system in the non-operative 1 position.
  • the armature front plate 31 is tilted away from the end of yoke '2 and away from the core 1c or the coil.'-At the same time, there is formed a wedge shaped airgap between the edge surface of the arma- FIG. 3c shows the armature as tilted towards the left.
  • the armature restoring force is produced by the contact (or springs) 4 engaging each of the two free ends of the armature arms 32 and 33 via the aforementioned linkage, to effect this lifting of the arm of the armature off the yoke 2.
  • the front plate 31 (end face of the armature) is uniquely designed.
  • the bottom edges of 31, identified as 31a and 31b are chamfered by a relatively small amount so that the entire armature assembly 3 can rock or be tilted laterally as pictorially shown in FIGS. 3b and 3c.
  • the relay is a double-pole, doublethrow type, i.e., that there are two leaf and contact assemblies, i.e., two sets of parts 4 and 5a, b and one near the armature side am 32 and the other near 33, so that they are approximately equally spaced from the axial core center line on either side.
  • the partial magnetic circuit closing thus effected tends to increase the activating force attempting to fully seat the armature 3, and accordingly tends to releasethe stuck contact. This increased magnetic force is extant between the core end and the armature plate 31.
  • Another alternative within the scope of the present invention envolves the design of the longitudinal side of the front plate 31 of the armature facing the yoke 2 without slant-plane surfaces, but instead to provide a suitably profiled groove in the direct vicinity of the yoke armature facing side. This will offer the advantage of still further improving the magnetic flux between the yoke and the annature.
  • FIGS. 4a and 4b A further feature of the invention is shown in FIGS. 4a and 4b.
  • a protrusion 35 is fabricated into the armature front plate 31 adjacent to the yoke 2.
  • the surface 35a of this protrusion will be and in contact with the surface of the casing 6 when the armature 3 is fully seated.
  • the armature need not depend only on the narrow edge contact between 2 and 31 but rather will have mechanical support from casing 6, below.
  • the word vertical center line refers to a vertical line running upward through 35 up along the center of the armature end plate 31 (see FIG. 3a). Of course, this line might not ultimately be vertical in use unless the relay is physically oriented as illustrated.
  • An electromagnetically operated device for producing a mechanical movement in response to an electrical control signal, comprising:
  • first means including a coil and core for generating a magnetic flux in response to an electric current through said coil;
  • yoke means substantially in magnetic contact with a first end of said core and shaped to provide a flux path from said first end of said core to a position adjacent to the perimeter of said coil at the second end of said core;
  • second means including an armature having an end plate and two side plates forming a U-shaped, sheet metal part, the inside of said end plate engaging said core second end and the corresponding end of said yoke to close the magnetic circuit in operatron;
  • Apparatus according to claim 2 further defined in that said device is a relay having at least one set of electrical contacts side plates of said annature extend generally parallel to said coil and core and toward said first end of said core, and the open ends of said side plates are provided with mechanical linkages to operate said contacts.
  • said yoke means is an L-shaped part of magnetic flux transmissive material, said yoke having a leg extending parallel to said coil and core axial centerline to a position oppposite said core second end.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
US00411369A 1972-10-31 1973-10-31 Tilting system Expired - Lifetime US3836878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722253456 DE2253456C3 (de) 1972-10-31 Magnetsystem

Publications (1)

Publication Number Publication Date
US3836878A true US3836878A (en) 1974-09-17

Family

ID=5860556

Family Applications (1)

Application Number Title Priority Date Filing Date
US00411369A Expired - Lifetime US3836878A (en) 1972-10-31 1973-10-31 Tilting system

Country Status (6)

Country Link
US (1) US3836878A (pl)
BE (1) BE806771A (pl)
CH (1) CH564258A5 (pl)
FR (1) FR2204869B3 (pl)
GB (1) GB1438807A (pl)
IT (1) IT998976B (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061994A (en) * 1975-04-15 1977-12-06 International Standard Electric Corporation Miniature relay with bearing supports associated with the housing

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969520C (de) * 1951-12-25 1958-06-12 Telefonbau & Normalzeit Gmbh Fernmelderelais mit einem das freie Jochende von drei Seiten umfassenden Anker
DE1195359B (de) * 1962-04-10 1965-06-24 Siemens Ag Kontaktfederleiste mit ueber ein gemeinsames Andrueckelement betaetigbaren Kontaktfedern fuer Steckverbindungen
US3444491A (en) * 1966-12-05 1969-05-13 Ranald O Whitaker Binary relay utilizing armature inertia for shifting binary positions

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969520C (de) * 1951-12-25 1958-06-12 Telefonbau & Normalzeit Gmbh Fernmelderelais mit einem das freie Jochende von drei Seiten umfassenden Anker
DE1195359B (de) * 1962-04-10 1965-06-24 Siemens Ag Kontaktfederleiste mit ueber ein gemeinsames Andrueckelement betaetigbaren Kontaktfedern fuer Steckverbindungen
US3444491A (en) * 1966-12-05 1969-05-13 Ranald O Whitaker Binary relay utilizing armature inertia for shifting binary positions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061994A (en) * 1975-04-15 1977-12-06 International Standard Electric Corporation Miniature relay with bearing supports associated with the housing

Also Published As

Publication number Publication date
IT998976B (it) 1976-02-20
BE806771A (nl) 1974-04-30
FR2204869B3 (pl) 1977-01-07
DE2253456B2 (de) 1976-09-16
DE2253456A1 (de) 1974-05-02
GB1438807A (en) 1976-06-09
CH564258A5 (pl) 1975-07-15
FR2204869A1 (pl) 1974-05-24

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ALCATEL N.V., DE LAIRESSESTRAAT 153, 1075 HK AMSTE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:INTERNATIONAL STANDARD ELECTRIC CORPORATION, A CORP OF DE;REEL/FRAME:004718/0023

Effective date: 19870311