JPS56168132A - Temperature switching element - Google Patents

Temperature switching element

Info

Publication number
JPS56168132A
JPS56168132A JP7203080A JP7203080A JPS56168132A JP S56168132 A JPS56168132 A JP S56168132A JP 7203080 A JP7203080 A JP 7203080A JP 7203080 A JP7203080 A JP 7203080A JP S56168132 A JPS56168132 A JP S56168132A
Authority
JP
Japan
Prior art keywords
directions
permanent magnet
magnet
temp
switching element
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.)
Pending
Application number
JP7203080A
Other languages
Japanese (ja)
Inventor
Masato Sagawa
Wataru Yamagishi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP7203080A priority Critical patent/JPS56168132A/en
Publication of JPS56168132A publication Critical patent/JPS56168132A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/58—Thermally-sensitive members actuated due to thermally controlled change of magnetic permeability

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Magnetically Actuated Valves (AREA)
  • Control Of Temperature (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

PURPOSE:To miniaturize the entire part by disposing spin rearrangement type ferromagnetic materials in the form that the directions of their easy magnetization axis at a certain temp. are deviated by 90 deg. and operating a magnet by utilizing the difference in the attraction forces acting between the permanent magnet and the magnetic materials. CONSTITUTION:A temp. switching element 1 is installed with spin rearrangement type ferromagnetic bases 7, 7' consisting of a dysprosium cobalt (DyCo5) alloy opposedly in the form that the directions 7a, 7a' of their easy magnetization axis at a certain temp. are deviated by 90 deg. each other. On the other hand, a permanent magnet 3 consisting of a samarium cobalt (SmCo5) alloy is provided between the bases 7, 7' freely movably in the directions A, B in the form that its magnetic poles 3a, 3b are arranged in the arrow A, B directions. Since this element is so arranged as to operate the magnet 3 by utilizing the difference in the attraction forces acting between the permanent magnet 3 and the magnetic materials 7, 7' in this way, leaf springs are omitted, and the entire part is miniaturized.
JP7203080A 1980-05-29 1980-05-29 Temperature switching element Pending JPS56168132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7203080A JPS56168132A (en) 1980-05-29 1980-05-29 Temperature switching element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7203080A JPS56168132A (en) 1980-05-29 1980-05-29 Temperature switching element

Publications (1)

Publication Number Publication Date
JPS56168132A true JPS56168132A (en) 1981-12-24

Family

ID=13477599

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7203080A Pending JPS56168132A (en) 1980-05-29 1980-05-29 Temperature switching element

Country Status (1)

Country Link
JP (1) JPS56168132A (en)

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