GB817035A - Electromagnetically-actuated electric switches - Google Patents

Electromagnetically-actuated electric switches

Info

Publication number
GB817035A
GB817035A GB1231156A GB1231156A GB817035A GB 817035 A GB817035 A GB 817035A GB 1231156 A GB1231156 A GB 1231156A GB 1231156 A GB1231156 A GB 1231156A GB 817035 A GB817035 A GB 817035A
Authority
GB
United Kingdom
Prior art keywords
switch
closed
coil
coils
contacts
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
GB1231156A
Inventor
Charles Ewart Hayter
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.)
Lucas Support Services Ltd
Original Assignee
Rotax Ltd
Filing date
Publication date
Application filed by Rotax Ltd filed Critical Rotax Ltd
Priority to US827768A priority Critical patent/US3108208A/en
Priority to FR800589A priority patent/FR1230396A/en
Publication of GB817035A publication Critical patent/GB817035A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
    • H01H47/06—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current by changing number of serially-connected turns or windings
    • 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
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Resistance Heating (AREA)
  • Relay Circuits (AREA)

Abstract

817,035. Electromagnetic switches. ROTAX Ltd. July 22, 1957 [April 23, 1956], No. 12311/56. Class 38 (5). The spring-biased contact-operating plunger a is acted upon by two coils e, f connected in series across a supply so that when a control switch k is closed, the current through the coils is not sufficient to operate the switch, but the coil h of a separate relay is also energized to close its contacts g and short-circuit the high-resistance coil f, so that the switch is closed by the coil e. A mechanical coupling (not shown) is arranged, when the contacts c, d are closed, to open an auxiliary switch i against its spring bias, so that the coil h is de-energized and the contacts g open, allowing the windings e and f in series to maintain the switch closed. If the closing voltage is insufficient to operate the relay h, g the current through coils e, f is insufficient to overheat them.
GB1231156A 1956-04-23 1956-04-23 Electromagnetically-actuated electric switches Expired GB817035A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US827768A US3108208A (en) 1956-04-23 1959-07-17 Electromagnetically-actuated electric switches
FR800589A FR1230396A (en) 1956-04-23 1959-07-20 Electromagnetic control switch

Publications (1)

Publication Number Publication Date
GB817035A true GB817035A (en) 1959-07-22

Family

ID=1717229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1231156A Expired GB817035A (en) 1956-04-23 1956-04-23 Electromagnetically-actuated electric switches

Country Status (1)

Country Link
GB (1) GB817035A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198885A (en) * 1986-11-26 1988-06-22 Toshiba Kk A relay
EP0509824A2 (en) * 1991-04-19 1992-10-21 Eaton Corporation Double DC coil timing circuit
CN115360061A (en) * 2022-09-26 2022-11-18 北京天创凯睿科技有限公司 Self-holding electromagnetic contactor and electric control system of fighter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2198885A (en) * 1986-11-26 1988-06-22 Toshiba Kk A relay
GB2198885B (en) * 1986-11-26 1990-09-05 Toshiba Kk Cooking apparatus using relays
US5040089A (en) * 1986-11-26 1991-08-13 Kabushiki Kaisha Toshiba D.C. relay with power reducing function
EP0509824A2 (en) * 1991-04-19 1992-10-21 Eaton Corporation Double DC coil timing circuit
EP0509824A3 (en) * 1991-04-19 1993-06-30 Westinghouse Electric Corporation Double dc coil timing circuit
CN115360061A (en) * 2022-09-26 2022-11-18 北京天创凯睿科技有限公司 Self-holding electromagnetic contactor and electric control system of fighter

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