JPS57134649A - Detector for boiling in water heater or the like - Google Patents

Detector for boiling in water heater or the like

Info

Publication number
JPS57134649A
JPS57134649A JP56019753A JP1975381A JPS57134649A JP S57134649 A JPS57134649 A JP S57134649A JP 56019753 A JP56019753 A JP 56019753A JP 1975381 A JP1975381 A JP 1975381A JP S57134649 A JPS57134649 A JP S57134649A
Authority
JP
Japan
Prior art keywords
chamber
vapor
switch
shape memory
alloy
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
JP56019753A
Other languages
Japanese (ja)
Inventor
Toshiharu Nibu
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP56019753A priority Critical patent/JPS57134649A/en
Publication of JPS57134649A publication Critical patent/JPS57134649A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)

Abstract

PURPOSE:To detect a boiling condition positively with a simple construction by using a shape memory alloy which has a deformation temperature equal to the temperature of a vapor. CONSTITUTION:A vapor chamber 21 is formed at an upper part of a side wall of a heating vessel 2, a discharge hole 25 is provided in an upper wall of the chamber 21 and a shape memory alloy 23 having a deformation temperature equal to the temperature of the vapor in concern is provided in the chamber 21. Both end of the alloy 23 is fixed respectively to the bottom 21a of the chamber 21 and to the lower end of an operating lever 22. The lever 22 is provided with a flange 24 at a lower part thereof and recesses 26, 27 at its side part so as to operate a switch 28 by pressing a movable piece 29 of the switch 29. When the vapor contacts with the shape memory alloy 23, the alloy 23 is contracted so as to close the hole 25 by the flange 24 and open the switch 28, thereby stopping the heating operation.
JP56019753A 1981-02-12 1981-02-12 Detector for boiling in water heater or the like Pending JPS57134649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56019753A JPS57134649A (en) 1981-02-12 1981-02-12 Detector for boiling in water heater or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56019753A JPS57134649A (en) 1981-02-12 1981-02-12 Detector for boiling in water heater or the like

Publications (1)

Publication Number Publication Date
JPS57134649A true JPS57134649A (en) 1982-08-19

Family

ID=12008095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56019753A Pending JPS57134649A (en) 1981-02-12 1981-02-12 Detector for boiling in water heater or the like

Country Status (1)

Country Link
JP (1) JPS57134649A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938642U (en) * 1982-09-06 1984-03-12 ホーチキ株式会社 Automatic stop device for bath kettle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5938642U (en) * 1982-09-06 1984-03-12 ホーチキ株式会社 Automatic stop device for bath kettle

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