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US3195023A - Electromagnetic relay - Google Patents

Electromagnetic relay Download PDF

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Publication number
US3195023A
US3195023A US186122A US18612262A US3195023A US 3195023 A US3195023 A US 3195023A US 186122 A US186122 A US 186122A US 18612262 A US18612262 A US 18612262A US 3195023 A US3195023 A US 3195023A
Authority
US
United States
Prior art keywords
armature
flux
auxiliary
permanent magnet
force
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
US186122A
Other languages
English (en)
Inventor
Ueberschuss Albert
Mielert Helmut
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens 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
Application filed by Siemens Corp filed Critical Siemens Corp
Application granted granted Critical
Publication of US3195023A publication Critical patent/US3195023A/en
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
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2236—Polarised relays comprising pivotable armature, pivoting at extremity or bending point of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field

Definitions

  • the invention disclosed herein is concerned with an electromagnetic relay having an armature which upon cessation of control energization of the relay winding remains in one of its two possible end positions until arrival of the next control impulse which effects switching over of the armature to its alternate end position.
  • the invention overcomes these drawbacks by the provision of a relay, comprising a permanent magnet which cooperates with the control flux, produced by the electroiagnet system, in such a manner that the armature is switched into one end position by superimposition of the control flux and the permanent flux, that is, by the sum of the two fluxes, while being switched into the other end position by the difference between the two fluxes, and being upon cessation of the control flux held in the respectively attained position.
  • this is accomplished by means cooperating with the armature, for producing a restoring force which always acts in the same direction, whereby the armature is held in one end position by the restoring force while being held in the other end position by the force of the permanent magnet.
  • the restoring force could be supplied by a spring.
  • the restoring force is in particularly advantageous and structurally simple manner, produced by an auxiliary armature extending from the arm of the main armature, said auxiliary armature branching from the main magnetic circuit of the relay an auxiliary flux which exerts the holding force upon the armature in the normal position thereof.
  • FIG. 1 shows in schematic manner an example of the structure of a relay according to the invention
  • FIG. 2 is a force-way diagram for the operating and the holding forces which are eiiective in connection with the relay shown in FIG. 1;
  • FIG. 3 represents the fiux course in its principal features
  • FIG. 4 is a substitution circuit for the magnetic circuits.
  • the auxiliary armature 2 which extends from the arm 7 of the main armature 6,
  • the dimensions of the auxiliary armature 2 and the position thereof, are so selected that the force predominates which is exerted by the arm 7 of the main armature 6 upon operative attraction thereof, while the force of the auxiliary armature 2 predominates when the main armature is in normal or deenergized position.
  • the main armature and auxiliary armature and parts thereof are made of one piece. The spacing between the auxiliary armature 2 and the permanent magnet 4 and its pole piece 5 can be adjusted by. bending the arm of the auxiliary armature.
  • the contact leaf Iii is adapted to be actuated by the extension I mounted on the arm 7.
  • FIG. 2 shows the force-way curves which are to be considered in connection with the relay illustrated in FIG. 1.
  • Curve I is the force-way characteristic of the contact arrangement
  • curve II is the force-way characteristic of the magnet system
  • curve III is the resultant of the curves I and II. It will be seen that the resultant Ill extends nearly symmetrically to the zero line, showing that the holding forces acting in the two end postions are approximately equal and oppositely oriented.
  • FIG. 4 shows a substitution circuit for the principalflux course described in connection with FIG. 3.
  • R is the scatter resistance between the auxiliary armature 2 and the yoke 3;
  • R indicates the magnetic resistance of the upper portion of the yoke 3;
  • R indicates the effective resistance across the magnet 4;
  • R indicates the resistance in the core 8 of the energizing coil 9;
  • R and R represent the magnetic resistance in the main armature 6 and the armature arm 7.
  • R and R indicate the resistances obtaining respectively in the air gap between the main armature 6 and the cooperatively associated pole piece and between the auxiliary armature 2 and the pole piece 5.
  • An electromagnetic relay having a permanent magnet which coacts with the control flux produced by the electromagnetic system so that the armature is by superposition of the control flux and the permanent flux actuatable to assume its two respective end positions and being upon cessation of the control flux held in the attained end position, comprising an auxiliary armature extending from the main armature for deriving from the permanent magnet disposed in the control flux circuit an auxiliary flux which produces a restoring force, always acting in the same direction, said auxiliary flux exerting a holding force upon the armature in the normal position thereof, with the armature being held in one end position thereof by the restoring force, while being held in the other end position by the force exerted by the permanent magnet.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US186122A 1961-04-28 1962-04-09 Electromagnetic relay Expired - Lifetime US3195023A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES73748A DE1198455B (de) 1961-04-28 1961-04-28 Elektromagnetisches Relais mit Haftcharakteristik

Publications (1)

Publication Number Publication Date
US3195023A true US3195023A (en) 1965-07-13

Family

ID=7504158

Family Applications (1)

Application Number Title Priority Date Filing Date
US186122A Expired - Lifetime US3195023A (en) 1961-04-28 1962-04-09 Electromagnetic relay

Country Status (6)

Country Link
US (1) US3195023A (de)
BE (1) BE616936A (de)
CH (1) CH408210A (de)
DE (1) DE1198455B (de)
FR (1) FR1319893A (de)
GB (1) GB968562A (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317871A (en) * 1965-09-20 1967-05-02 Leach Corp Magnetically operated actuator
US3451022A (en) * 1966-06-03 1969-06-17 Siemens Ag Electro-magnetic system constructed as an independent prefabricated unit capable of mounting without adjustment
US3599133A (en) * 1970-03-10 1971-08-10 Amf Inc Latch relay motor structure
US3710290A (en) * 1970-11-03 1973-01-09 Hartmann & Braun Ag Polarized electromagnetic relay
US3775715A (en) * 1971-07-07 1973-11-27 Siemens Ag Magnetic system for relays
US4020434A (en) * 1975-01-27 1977-04-26 Siemens Aktiengesellschaft Polarized electromagnetic relay and method of manufacturing the same
US4657598A (en) * 1983-05-23 1987-04-14 The Odessa American, A Subsidary Of Freedom Newspapers, Inc. Rejuvenating newspaper film process
US20070168237A1 (en) * 2005-05-25 2007-07-19 Campbell Michael J Methods and systems for a guest online-reservable system
US20140055220A1 (en) * 2012-08-24 2014-02-27 Omron Corporation Electromagnet device
JP2014045043A (ja) * 2012-08-24 2014-03-13 Omron Corp 電磁石装置およびこれを用いた電磁継電器
US11515112B2 (en) * 2018-05-31 2022-11-29 Fujitsu Component Limited Electromagnetic relay

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE755082A (fr) * 1969-08-25 1971-02-01 Ncr Co Dispositif d'actionnement de marteaux d'impression
JPS5816428A (ja) * 1981-07-22 1983-01-31 松下電工株式会社 ラツチング型リレ−
DE3332487C2 (de) * 1983-04-09 1993-11-18 Original Electric Mfg & Co Ltd Elektromagnetisches Relais
GB8717083D0 (en) * 1987-07-20 1987-08-26 Gen Electric Co Plc Electric switches

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908783A (en) * 1954-01-25 1959-10-13 Ugon Pierre Eugene Electromagnetic devices
US2913639A (en) * 1956-01-20 1959-11-17 Richard J Coppola Polarized a. c. operated relay
US2928029A (en) * 1957-10-07 1960-03-08 Westinghouse Brake & Signal Tractive armature relays

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB515529A (en) * 1938-05-31 1939-12-07 Automatic Telephone & Elect Improvements in or relating to electromagnetic relays
DE846863C (de) * 1942-08-10 1952-08-18 Siemens Ag Relais
DE1030930B (de) * 1956-06-21 1958-05-29 Werk Signal Sicherungstech Veb Elektromagnetisches Haftrelais

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2908783A (en) * 1954-01-25 1959-10-13 Ugon Pierre Eugene Electromagnetic devices
US2913639A (en) * 1956-01-20 1959-11-17 Richard J Coppola Polarized a. c. operated relay
US2928029A (en) * 1957-10-07 1960-03-08 Westinghouse Brake & Signal Tractive armature relays

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3317871A (en) * 1965-09-20 1967-05-02 Leach Corp Magnetically operated actuator
US3451022A (en) * 1966-06-03 1969-06-17 Siemens Ag Electro-magnetic system constructed as an independent prefabricated unit capable of mounting without adjustment
US3599133A (en) * 1970-03-10 1971-08-10 Amf Inc Latch relay motor structure
US3710290A (en) * 1970-11-03 1973-01-09 Hartmann & Braun Ag Polarized electromagnetic relay
US3775715A (en) * 1971-07-07 1973-11-27 Siemens Ag Magnetic system for relays
US4020434A (en) * 1975-01-27 1977-04-26 Siemens Aktiengesellschaft Polarized electromagnetic relay and method of manufacturing the same
US4657598A (en) * 1983-05-23 1987-04-14 The Odessa American, A Subsidary Of Freedom Newspapers, Inc. Rejuvenating newspaper film process
US20070168237A1 (en) * 2005-05-25 2007-07-19 Campbell Michael J Methods and systems for a guest online-reservable system
US20140055220A1 (en) * 2012-08-24 2014-02-27 Omron Corporation Electromagnet device
JP2014045043A (ja) * 2012-08-24 2014-03-13 Omron Corp 電磁石装置およびこれを用いた電磁継電器
US9153403B2 (en) * 2012-08-24 2015-10-06 Omron Corporation Electromagnet device
US11515112B2 (en) * 2018-05-31 2022-11-29 Fujitsu Component Limited Electromagnetic relay

Also Published As

Publication number Publication date
FR1319893A (fr) 1963-03-01
BE616936A (fr) 1962-08-16
CH408210A (de) 1966-02-28
DE1198455B (de) 1965-08-12
GB968562A (en) 1964-09-02

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