US3046456A - Electromagnetic device - Google Patents

Electromagnetic device Download PDF

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Publication number
US3046456A
US3046456A US792433A US79243359A US3046456A US 3046456 A US3046456 A US 3046456A US 792433 A US792433 A US 792433A US 79243359 A US79243359 A US 79243359A US 3046456 A US3046456 A US 3046456A
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US
United States
Prior art keywords
armature
core
carrier
electromagnetic
cushioning
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
US792433A
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English (en)
Inventor
Petrus Heinz
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs 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.)
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Publication date
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Application granted granted Critical
Publication of US3046456A publication Critical patent/US3046456A/en
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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
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature

Definitions

  • the present invention relates to electromagnetic devices, particularly to electromagnetic switching devices such as relays.
  • an object of the present invention to overcome the above disadvantages by providing an electromagnetic device, particularly an electromagnetic switching device such as a relay, in which the recoil of the armature, upon striking the core, is damped rapidly.
  • the present invention mainly resides in the provision of an electromagnetic device, particularly an electromagnetically switching device such as a relay, having a core, an armature and an armature carrier, wherein a cushioning means, preferably in the form of a cushioning layer made of fatigue and heat-resistant cushioning material such ⁇ as packed mineral material, for example, brous and/or comminuted binder-impregnated mineral material such as asbestos, is interposed between the armature and the armature carrier for damping the recoil of the armature against the core upon energization of the device.
  • a cushioning means preferably in the form of a cushioning layer made of fatigue and heat-resistant cushioning material such ⁇ as packed mineral material, for example, brous and/or comminuted binder-impregnated mineral material such as asbestos
  • FIG. 1 is a sectional view of an electromagnetic relay according to the present invention.
  • FIG. 2 is a sectional view taken substantially along line 2--2 of FIG. 1.
  • an electromagnetic relay comprising a laminated core 1 containing a coil 1a, an armature carrier 2 and a laminated armature 3.
  • the armature carrier constitutes a switchactuating head which carries Contact blades 4 which, in turn, carry the movable contacts (not shown) that cooperate with the stationary contacts (not shown) in a manner well known in the art.
  • the switch-actuating head 2 is formed with downwardly depending portions 2a and 2b between which the armature 3 is ar-ranged.
  • the head also carries a carrier member in the form of a plate 5 which has a at surface downwardly directed, and it is securely screwed to the carrier head by screws 6.
  • the plate 5 is also formed with two downwardly depending portions 5a and 5b (FIG. 2) which are formed with openings or slots 5c and 5d, respectively, which are elongated in the direction of movement of the armature 3 and head 2 with respect to the core 1.
  • a coupling rod 7 passes through an opening in the armature 3 as well as through the slots 5c, Sd, so that the armature 3 is firmly but non-rigidly connected to the switch-actuating head 2.
  • cushioning means are interposed between the armature and the armature carrier.
  • These ⁇ cushioning means are shown as being in the form of a cushioning layer which is made of fatigue and heat-resistant cushioning material such as packed mineral material, for example, fibrous and/ or comminuted mineral material, such as asbestos, which may be impregnated with a binder.
  • This cushioning layer may be in the form of a single plate or sheet S, as shown, or may comprise a plurality of superposed sheets.
  • spacer sheets 8a and 8b of hard or bakelized paper may be provided for compensating for any deviations in the thickness of the layer 8, or for inaccuracies encountered in the manufacture of the device.
  • Sheet 8a is disposed on the flat upwardly directed upper surface of armature 3.
  • the armature and armature carrier are spring-biased away from the core by means of compression springs 9 interposed between the downwardly depending portions 2a and 2b of the switch-actuating head 2 and upwardly extending portions 10a and 10b of a mounting plate 10 to which the core is securely fastened by means of screws 11.
  • the armature 3, and with it the switch-actuating head 2 are attracted by the core against the action of the springs 9, and the recoil or impact of the armature upon the core 1 is ⁇ damped by the above-described cushioning means. From the drawing it can be derived easily, that the movement of the armature is carried out perpendicular to the extension of plates 8 and sheets 8a and 8b. It has been found that thanks to the cushioning plate 8, the useful life of such devices, particularly in the case of electromagnetic relays, is materially increased.
  • the present invention is susceptible to modification without involving a departure from the basic construction.
  • the opening through the core 3 accommodating the coupling rod may be elongated.
  • the cushioning layer 8 may be of materials different from those set forth above.
  • asbestos one may luse glass wool or any other unraveled inorganic material.
  • Preferred is the use of an asbestos-material, well known under the trademark Klingerit. Sheets or plates of Klingerit are hitherto obtained for other purposes, f.i. as packing discs in internal combustion engines.
  • binder any artificial resin or inorganic material f.i. water glass (silicate of sodium or potassium) may be used.
  • an electromagnetic switching device which comprises; a core; a movable armature adapted to be attracted by said core upon energization of the switching device and having a flat surface extending perpendicular to its movements; spring means resiliently biasing said armature, said core when energized, attracting said armature against the force of Said spring means;
  • an armature carrier with switching head having a fiat surface parallel to said ilat surface of said armature; a fiat cushioning plate made of packed mineral material interposed between said flat surfaces of said armature and said armature carrier for damping the recoil of said armature against said core upon energization of the switching device; and means gripping around said cushioning plate for nonrigidly connecting said armature to saidcarrier While permitting relative play in the direction of armature movement only.
  • an electromagnetic switching device which comprises, a core; a movable armature adapted to be attracted by said core upon energization of the switching device and having a at surface extending perpendicular to its movements; spring means resiliently biasing said armature, said core when energized, attracting said armature against the force of said spring means; an armature carrier with switching head having a flat surface extending parallel to said ilat surface of said armature; means for non-rigidly connecting said armaturel to said carrier but permitting relative play perpendicular to said surface only and a iiat cushioning plate made of packed comminuted mineral material interposed between said at surfaces of said armature and said armature carrier for damping the recoil of said armature against said core upon energization of the switching device.
  • an electromagnetic switching device which comprises: a core; a movable armature adapted to be attracted by said core upon energization of the switching device and having a at surface extending perpendicular to its movement; spring means resiliently bias.- ing said armature, said core when energized, attracting said armature against the force of said sprmg means; an armature carrier with switching head having a at surface extending parallel to said iat surface of said arrnature; means for non-rigidly connecting said armature to said carrier but permitting relative play perpendicular to said surface only and a ilat cushioning plate made of packed brrous asbestos interposed between said at surfaces of said armature and said armature carrier for damping the recoil of said armature against said core upon energization of the switching device.
  • an electromagnetic switching device which comprises: a core; a movable armature adapted to be attracted by said core upon energization of the switching device and having a flat surface extending perpendicular to its movements; spring means resiliently biasing said armature, said core when energized, attracting said armature against the force of said spring means; an armature carrier with switching head having a flat surface extending parallel to said at surface of said armature; means for non-rigidly connecting said armature to said carrier but permitting relative play perpendicular to said surface only and a iiat cushioning plate made of binderimpregnated packed fibrous mineral material interposed between said flat surfaces of said armature and said armature carrier for damping the recoil of said armature against said core upon energization of the switching device.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
US792433A 1958-02-17 1959-02-10 Electromagnetic device Expired - Lifetime US3046456A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL20445U DE1776914U (de) 1958-02-17 1958-02-17 Befestigung des magnetankers am beweglichen schaltteil von elektromagneten, insbesondere bei schuetzen.

Publications (1)

Publication Number Publication Date
US3046456A true US3046456A (en) 1962-07-24

Family

ID=32836624

Family Applications (1)

Application Number Title Priority Date Filing Date
US792433A Expired - Lifetime US3046456A (en) 1958-02-17 1959-02-10 Electromagnetic device

Country Status (4)

Country Link
US (1) US3046456A (de)
CH (1) CH368538A (de)
DE (1) DE1776914U (de)
FR (1) FR1216098A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3148313A (en) * 1962-08-03 1964-09-08 Amphenol Borg Electronics Corp Noise-eliminating means for selfwinding electric clocks
US3179859A (en) * 1961-07-17 1965-04-20 Itt Means and techniques for silencing solenoid-operated devices
US3209365A (en) * 1963-07-29 1965-09-28 California Comp Products Inc Intermittently operated inking mechanism
US3296567A (en) * 1964-05-25 1967-01-03 Westinghouse Electric Corp Electric control device
US3503019A (en) * 1967-10-26 1970-03-24 Ite Imperial Corp Noise damping means for electromagnet
DE4123369A1 (de) * 1991-07-15 1993-04-08 Oppach Schaltelektronik Elektromagnetisches schaltgeraet, insbesondere schuetz mit geradfuehrung, mit mitteln zur daempfung von kontaktprellungen
CN1040262C (zh) * 1993-12-22 1998-10-14 富士电机株式会社 电磁接触器的铁芯保持构造
US11799800B2 (en) 2015-01-30 2023-10-24 Nicira, Inc. Logical router with multiple routing components

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113871256B (zh) * 2021-09-23 2022-10-21 江西威齐电器有限公司 一种小型防振式稳定性继电器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1011662A (en) * 1908-05-27 1911-12-12 Otis Elevator Co Switchboard construction for alternating-current controllers.
US2431377A (en) * 1944-01-18 1947-11-25 First Ind Corp Magnetic switch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1011662A (en) * 1908-05-27 1911-12-12 Otis Elevator Co Switchboard construction for alternating-current controllers.
US2431377A (en) * 1944-01-18 1947-11-25 First Ind Corp Magnetic switch

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3179859A (en) * 1961-07-17 1965-04-20 Itt Means and techniques for silencing solenoid-operated devices
US3148313A (en) * 1962-08-03 1964-09-08 Amphenol Borg Electronics Corp Noise-eliminating means for selfwinding electric clocks
US3209365A (en) * 1963-07-29 1965-09-28 California Comp Products Inc Intermittently operated inking mechanism
US3296567A (en) * 1964-05-25 1967-01-03 Westinghouse Electric Corp Electric control device
US3503019A (en) * 1967-10-26 1970-03-24 Ite Imperial Corp Noise damping means for electromagnet
DE4123369A1 (de) * 1991-07-15 1993-04-08 Oppach Schaltelektronik Elektromagnetisches schaltgeraet, insbesondere schuetz mit geradfuehrung, mit mitteln zur daempfung von kontaktprellungen
CN1040262C (zh) * 1993-12-22 1998-10-14 富士电机株式会社 电磁接触器的铁芯保持构造
US11799800B2 (en) 2015-01-30 2023-10-24 Nicira, Inc. Logical router with multiple routing components

Also Published As

Publication number Publication date
FR1216098A (fr) 1960-04-21
DE1776914U (de) 1958-11-06
CH368538A (de) 1963-04-15

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