GB1278089A - Improvements in or relating to electromagnetic holding devices - Google Patents

Improvements in or relating to electromagnetic holding devices

Info

Publication number
GB1278089A
GB1278089A GB48633/69A GB4863369A GB1278089A GB 1278089 A GB1278089 A GB 1278089A GB 48633/69 A GB48633/69 A GB 48633/69A GB 4863369 A GB4863369 A GB 4863369A GB 1278089 A GB1278089 A GB 1278089A
Authority
GB
United Kingdom
Prior art keywords
armature
yoke
limb
permanent magnet
flux
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
Application number
GB48633/69A
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.)
Societe dAppareillage Electrique SAPAREL SA
Original Assignee
Societe dAppareillage Electrique SAPAREL SA
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 AT1027368A external-priority patent/AT278954B/en
Application filed by Societe dAppareillage Electrique SAPAREL SA filed Critical Societe dAppareillage Electrique SAPAREL SA
Publication of GB1278089A publication Critical patent/GB1278089A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/10—Contacts retained open or closed by a latch which is controlled by an electromagnet
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H01H71/323—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with rotatable armature

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)

Abstract

1278089 Magnetic switch details SOC D APPAREILLAGE ELECTRIQUE SAPAREL 3 Oct 1969 [6 Jan 1969] 48633/69 Heading H1N An electromagnetic holding device with a spring-biased armature releasable to trip a circuit-breaker has a U-shaped yoke 1 with a release coil 4 on one limb 3 and a permanent magnet 5 adjacent the second limb 2 on the free end of which the armature is rockable on two relatively narrow spaced projections 11 which are between spaced rounded projections 8 of a non-magnetic member 6 which fits over the limb 2 and above the permanent magnet 5. The end of the first limb 3 has a relatively narrow tooth 22 for engagement by the armature in its attracted position and a flux collector 41, 43 is mounted on the member 6 to convey flux from the permanent magnet to the armature. A flux diverting regulating screw 25 is threaded into the yoke 1 and is engaged by an edge 26 of the thermoplastic coil former to restrain the screw in a set position. The surface of the armature which rocks on the yoke may be highly polished and the co-operating yoke parts may be given a matt finish by cold hammering. The base of the yoke 1 is cut away at 21 to increase its reluctance and it is provided with bosses 18 on which the permanent magnet 5 rests. The flux collector 41, 43 may be made of a material such that the effects of temperature change or its reluctance compensates for the effect of temperature change on the other components.
GB48633/69A 1968-10-22 1969-10-03 Improvements in or relating to electromagnetic holding devices Expired GB1278089A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1027368A AT278954B (en) 1968-10-22 1968-10-22 Magnetic trigger
FR6900052A FR2028606A5 (en) 1968-10-22 1969-01-06

Publications (1)

Publication Number Publication Date
GB1278089A true GB1278089A (en) 1972-06-14

Family

ID=25605953

Family Applications (2)

Application Number Title Priority Date Filing Date
GB48633/69A Expired GB1278089A (en) 1968-10-22 1969-10-03 Improvements in or relating to electromagnetic holding devices
GB1232725D Expired GB1232725A (en) 1968-10-22 1969-10-21

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB1232725D Expired GB1232725A (en) 1968-10-22 1969-10-21

Country Status (6)

Country Link
US (1) US3614689A (en)
BE (1) BE735809A (en)
CH (1) CH489877A (en)
DE (1) DE1942273C3 (en)
FR (2) FR2028606A5 (en)
GB (2) GB1278089A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2119592C3 (en) * 1971-04-22 1975-02-20 Union Special Maschinenfabrik Gmbh, 7000 Stuttgart Controlled thread tensioner for sewing machines
DE2630955C3 (en) * 1976-07-07 1983-12-22 Paul & Siedler Gmbh & Co Kg, 1000 Berlin Arrangement for fastening the magnetic yoke of an electrical relay to the carrier made of insulating material
FR2596577B1 (en) * 1986-03-28 1993-04-30 Serd Soc Et Realisa Disjonct POLARIZED TRIGGER
FR2618249B1 (en) * 1987-07-16 1989-11-17 Telemecanique Electrique ELECTRO-MAGNET WITH PERMANENT MAGNET HELD BY A CAGE.
ZA936741B (en) * 1992-09-14 1994-04-05 Circuit Breaker Ind A shunt trip device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1743494A (en) * 1927-10-12 1930-01-14 Joseph W Snyder Pole-changer transmitter
US2580123A (en) * 1945-07-04 1951-12-25 Bell Telephone Labor Inc Relay
US2991395A (en) * 1956-10-04 1961-07-04 Stewart Warner Corp Speed responsive control device
NL275584A (en) * 1961-03-06 1900-01-01
US3340520A (en) * 1964-05-14 1967-09-05 Gen Motors Corp Battery charge indicator
US3317871A (en) * 1965-09-20 1967-05-02 Leach Corp Magnetically operated actuator
FR1479460A (en) * 1966-03-22 1967-05-05 Ind Electr De La Seine L Sensitive electromagnetic release with reset
US3475708A (en) * 1966-05-27 1969-10-28 Fuchs Electrical Ind Proprieta Relay having a permanent magnetic shunt circuit

Also Published As

Publication number Publication date
CH489877A (en) 1970-04-30
GB1232725A (en) 1971-05-19
US3614689A (en) 1971-10-19
DE1942273C3 (en) 1978-11-02
DE1942273B2 (en) 1978-03-16
DE1942273A1 (en) 1970-07-16
FR2021190A1 (en) 1970-07-17
BE735809A (en) 1969-12-16
FR2028606A5 (en) 1970-10-09

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee