GB1220327A - Improvements in electric switches - Google Patents

Improvements in electric switches

Info

Publication number
GB1220327A
GB1220327A GB05710/69A GB1571069A GB1220327A GB 1220327 A GB1220327 A GB 1220327A GB 05710/69 A GB05710/69 A GB 05710/69A GB 1571069 A GB1571069 A GB 1571069A GB 1220327 A GB1220327 A GB 1220327A
Authority
GB
United Kingdom
Prior art keywords
permanent magnet
flux
magnetic
housing
diverted
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
GB05710/69A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1220327A publication Critical patent/GB1220327A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/725—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for ac voltages or currents

Landscapes

  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electronic Switches (AREA)

Abstract

1,220,327. Triac switching circuits. GENERAL ELECTRIC CO. 26 March, 1969 [29 March, 1968], No. 15710/69. Heading H3T. [Also in Divisions H1K and H1N] A vane operated magnetic switch has a non-magnetic housing 12 with a slot 18 which can receive the magnetic vane 20 to divert the magnetic flux from a permanent magnet 38 and effect operation of a reed contact unit 48 connected to apply a control signal, when its contacts are closed, to the gate terminal 64 of a Triac or semi-conductive bidirectional device 60 which has two main current terminals 62, 64 connected to control the energization of a load from an A.C. supply. The reed contacts may be normally open and be closed when the flux from the U-shaped permanent magnet 38 is diverted from a biasing U-shaped permanent magnet 39 arranged with its poles such that its flux passes along the reeds when the flux of the permanent magnet 38 is diverted. The sealed contact unit 48 is held by a spring clip 58 and the housing may be filled with plastics material. The semi-conductive device 60 may have its casing terminals 62 serrated and press-fitted in an aperture in a heat sink block 72 which is mounted on the metal end plate 24 of the housing 12 so as to be separated therefrom by a thin sheet 74 of electrically insulating material which allows heat transfer to the plate 24.
GB05710/69A 1968-03-29 1969-03-26 Improvements in electric switches Expired GB1220327A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71733468A 1968-03-29 1968-03-29

Publications (1)

Publication Number Publication Date
GB1220327A true GB1220327A (en) 1971-01-27

Family

ID=24881595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB05710/69A Expired GB1220327A (en) 1968-03-29 1969-03-26 Improvements in electric switches

Country Status (4)

Country Link
US (1) US3549907A (en)
CH (1) CH490769A (en)
FR (1) FR2005113A1 (en)
GB (1) GB1220327A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494256A (en) * 1982-10-04 1985-01-22 Ibg International Motorized pool cover
CN104022599A (en) * 2013-05-13 2014-09-03 湖北毅源科技开发有限公司 Magnetic switch structure for explosion-proof motor

Also Published As

Publication number Publication date
US3549907A (en) 1970-12-22
CH490769A (en) 1970-05-15
FR2005113A1 (en) 1969-12-05
DE1915637A1 (en) 1969-10-09
DE1915637B2 (en) 1972-07-20

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