EP0279592A3 - Electromagnetic contactor with energy balanced closing system - Google Patents

Electromagnetic contactor with energy balanced closing system Download PDF

Info

Publication number
EP0279592A3
EP0279592A3 EP88301162A EP88301162A EP0279592A3 EP 0279592 A3 EP0279592 A3 EP 0279592A3 EP 88301162 A EP88301162 A EP 88301162A EP 88301162 A EP88301162 A EP 88301162A EP 0279592 A3 EP0279592 A3 EP 0279592A3
Authority
EP
European Patent Office
Prior art keywords
armature
energy
electromagnetic contactor
closing system
zero
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.)
Granted
Application number
EP88301162A
Other languages
German (de)
French (fr)
Other versions
EP0279592B1 (en
EP0279592A2 (en
Inventor
James A. Bauer
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.)
Eaton Corp
Original Assignee
Eaton Corp
Westinghouse 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
Application filed by Eaton Corp, Westinghouse Electric Corp filed Critical Eaton Corp
Publication of EP0279592A2 publication Critical patent/EP0279592A2/en
Publication of EP0279592A3 publication Critical patent/EP0279592A3/en
Application granted granted Critical
Publication of EP0279592B1 publication Critical patent/EP0279592B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • 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
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings
    • H01F2007/1894—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings minimizing impact energy on closure of magnetic circuit

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Relay Circuits (AREA)
  • Stopping Of Electric Motors (AREA)

Abstract

An electromagnetic contactor or motor controller (10) in which an energy efficient bounceless contact closing operation is utilized. The energy supplied to the armature (40) of the electromagnetic closing coil (31) is such that the armature attains a predetermined velocity during its closing operation which predetermined velocity is approximately sufficient to allow the armature to move to its final fixed closed disposition where the air gap (58) between it and a permanent magnet (86) is reduced to zero at a velocity of approximately zero. One field of use is in the motor starters. An advantage lies in the fact that the present system reduces the required contact closing energy to a minimal amount.
EP19880301162 1987-02-19 1988-02-12 Electromagnetic contactor with energy balanced closing system Expired - Lifetime EP0279592B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1642587A 1987-02-19 1987-02-19
US16425 1993-02-11

Publications (3)

Publication Number Publication Date
EP0279592A2 EP0279592A2 (en) 1988-08-24
EP0279592A3 true EP0279592A3 (en) 1989-10-11
EP0279592B1 EP0279592B1 (en) 1997-11-12

Family

ID=21777057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880301162 Expired - Lifetime EP0279592B1 (en) 1987-02-19 1988-02-12 Electromagnetic contactor with energy balanced closing system

Country Status (7)

Country Link
EP (1) EP0279592B1 (en)
JP (1) JP2665925B2 (en)
AU (1) AU608282B2 (en)
BR (1) BR8800662A (en)
CA (1) CA1292761C (en)
DE (1) DE3856066T2 (en)
MX (1) MX167495B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU660008B2 (en) * 1991-03-21 1995-06-08 Eaton Corporation Molded magnetic contactors
US5546268A (en) * 1994-07-28 1996-08-13 Eaton Corporation Electromagnetic device with current regulated closure characteristic
FR2798506B1 (en) * 1999-09-15 2001-11-09 Schneider Electric Ind Sa ELECTROMAGNETIC ACTUATOR WITH TWO RETURN SPRINGS
EP2521154B1 (en) 2011-05-02 2016-06-29 ABB Technology AG An electromagnetically actuated switching device and a method for controlling the switching operations of said switching device.
EP2826053B1 (en) 2012-03-12 2017-12-06 Eaton Corporation Relay including processor providing control and/or monitoring
US9928982B2 (en) 2014-02-17 2018-03-27 Labinal, Llc Multiple configuration switching assembly
CN106935438B (en) * 2017-03-08 2020-03-13 平高集团有限公司 Control method and control device for magnetic operating mechanism
CN112071682B (en) * 2020-09-04 2022-11-25 陈金枢 Processing method of ceramic high-voltage direct current contactor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339161A (en) * 1964-05-25 1967-08-29 Westinghouse Electric Corp Electromagnetic contactor
DE2110071A1 (en) * 1971-03-03 1972-09-14 Bbc Brown Boveri & Cie AC-excited switching device
DE2511564A1 (en) * 1975-03-17 1976-09-30 Concordia Fluidtechnik Gmbh Actuating cct for coil of electromagnetic valve - holding current maintained by phase angle varying arrgt
DE2601799A1 (en) * 1976-01-20 1977-07-21 Licentia Gmbh Switch for electromagnetic contact actuation - has sensor in contactor electromagnetic range whose signals affect electronic switching element
FR2560429A1 (en) * 1984-02-28 1985-08-30 Telemecanique Electrique SILENT ELECTRO-MAGNET AND CONTACTOR USING SUCH ELECTRO-MAGNET

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0228215B2 (en) * 1984-02-04 1990-06-22 Togami Electric Mfg DENJISHADANKI
JPS61140015A (en) * 1984-12-12 1986-06-27 株式会社日立製作所 Driver for electromagnet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3339161A (en) * 1964-05-25 1967-08-29 Westinghouse Electric Corp Electromagnetic contactor
DE2110071A1 (en) * 1971-03-03 1972-09-14 Bbc Brown Boveri & Cie AC-excited switching device
DE2511564A1 (en) * 1975-03-17 1976-09-30 Concordia Fluidtechnik Gmbh Actuating cct for coil of electromagnetic valve - holding current maintained by phase angle varying arrgt
DE2601799A1 (en) * 1976-01-20 1977-07-21 Licentia Gmbh Switch for electromagnetic contact actuation - has sensor in contactor electromagnetic range whose signals affect electronic switching element
FR2560429A1 (en) * 1984-02-28 1985-08-30 Telemecanique Electrique SILENT ELECTRO-MAGNET AND CONTACTOR USING SUCH ELECTRO-MAGNET

Also Published As

Publication number Publication date
JP2665925B2 (en) 1997-10-22
JPS63289737A (en) 1988-11-28
MX167495B (en) 1993-03-25
DE3856066D1 (en) 1997-12-18
AU1128688A (en) 1988-08-25
EP0279592B1 (en) 1997-11-12
CA1292761C (en) 1991-12-03
DE3856066T2 (en) 1998-05-07
EP0279592A2 (en) 1988-08-24
AU608282B2 (en) 1991-03-28
BR8800662A (en) 1988-10-04

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