FR2266286A1 - Method of forming a reed switch - has coercive field set by lengths of semi-and non-remanent alloy conductors - Google Patents

Method of forming a reed switch - has coercive field set by lengths of semi-and non-remanent alloy conductors

Info

Publication number
FR2266286A1
FR2266286A1 FR7411429A FR7411429A FR2266286A1 FR 2266286 A1 FR2266286 A1 FR 2266286A1 FR 7411429 A FR7411429 A FR 7411429A FR 7411429 A FR7411429 A FR 7411429A FR 2266286 A1 FR2266286 A1 FR 2266286A1
Authority
FR
France
Prior art keywords
remanent
semi
bulb
conductors
lengths
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
FR7411429A
Other languages
French (fr)
Other versions
FR2266286B1 (en
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.)
Metalimphy SA
Original Assignee
Metalimphy 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
Application filed by Metalimphy SA filed Critical Metalimphy SA
Priority to FR7411429A priority Critical patent/FR2266286A1/en
Publication of FR2266286A1 publication Critical patent/FR2266286A1/en
Application granted granted Critical
Publication of FR2266286B1 publication Critical patent/FR2266286B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/28—Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed
    • H01H51/282—Constructional details not covered by H01H51/281

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Contacts (AREA)

Abstract

A sealed glass bulb (1) contains two electric current carrying conductors (2, 3) made of nickel-iron alloy, which is magnetically non-remanent but can easily be soldered (4, 5) to the glass of the bulb (1). To each conductor (2, 3) is soldered (6, 7) a strip (8, 9) of iron-cobalt-vanadium alloy, which is semi-remanent. Between the free-ends of the strips (8, 9) there is a small airgap (10). If a magnetic field is placed around the bulb (1) such that the lines of force are parallel to the axis of the bulb, the airgap is closed. The remanent induction in the strips (8, 9) maintains the free-ends in contact. The coercive field is determined by the relative lengths of the semi-remanent alloy conductors and of the conductors.
FR7411429A 1974-03-29 1974-03-29 Method of forming a reed switch - has coercive field set by lengths of semi-and non-remanent alloy conductors Granted FR2266286A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7411429A FR2266286A1 (en) 1974-03-29 1974-03-29 Method of forming a reed switch - has coercive field set by lengths of semi-and non-remanent alloy conductors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7411429A FR2266286A1 (en) 1974-03-29 1974-03-29 Method of forming a reed switch - has coercive field set by lengths of semi-and non-remanent alloy conductors

Publications (2)

Publication Number Publication Date
FR2266286A1 true FR2266286A1 (en) 1975-10-24
FR2266286B1 FR2266286B1 (en) 1978-07-28

Family

ID=9137128

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7411429A Granted FR2266286A1 (en) 1974-03-29 1974-03-29 Method of forming a reed switch - has coercive field set by lengths of semi-and non-remanent alloy conductors

Country Status (1)

Country Link
FR (1) FR2266286A1 (en)

Also Published As

Publication number Publication date
FR2266286B1 (en) 1978-07-28

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Legal Events

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ST Notification of lapse