JPS5669558A - Air flow switch with wind prevention hood - Google Patents

Air flow switch with wind prevention hood

Info

Publication number
JPS5669558A
JPS5669558A JP14496079A JP14496079A JPS5669558A JP S5669558 A JPS5669558 A JP S5669558A JP 14496079 A JP14496079 A JP 14496079A JP 14496079 A JP14496079 A JP 14496079A JP S5669558 A JPS5669558 A JP S5669558A
Authority
JP
Japan
Prior art keywords
thermistor
wind
thermistors
air flow
flow switch
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
JP14496079A
Other languages
Japanese (ja)
Inventor
Masanori Endo
Shigeo Ozawa
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.)
Tokin Corp
Original Assignee
Tohoku Metal Industries 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 Tohoku Metal Industries Ltd filed Critical Tohoku Metal Industries Ltd
Priority to JP14496079A priority Critical patent/JPS5669558A/en
Publication of JPS5669558A publication Critical patent/JPS5669558A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To detect the presence of wind by a simple circuit by connecting two thick film thermistors in series or in parallel, flowing electric current to generqte heat by itself and providing a wind preventing hood on one thermistor.
CONSTITUTION: The thick film thermisters Th3, Th4 of the same quality are connected in series and when voltage is applied to the terminals E, O, the thermistors Th3, Th4 are brought into a self heat condition. Then, a wind preventing hood is attached to one thermistor Th3 and wind is fed to both thermistors, the resistance value of the thermistor Th4 is larger than the resistance value of the thermistor Th3, thereby the potential of a wiring part is rasied. When it exceeds zener diode voltage of the zener diode D1, the transistors Tr1, Tr2 are turned on and the detecting signal from the teminal C is output.
COPYRIGHT: (C)1981,JPO&Japio
JP14496079A 1979-11-10 1979-11-10 Air flow switch with wind prevention hood Pending JPS5669558A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14496079A JPS5669558A (en) 1979-11-10 1979-11-10 Air flow switch with wind prevention hood

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14496079A JPS5669558A (en) 1979-11-10 1979-11-10 Air flow switch with wind prevention hood

Publications (1)

Publication Number Publication Date
JPS5669558A true JPS5669558A (en) 1981-06-10

Family

ID=15374190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14496079A Pending JPS5669558A (en) 1979-11-10 1979-11-10 Air flow switch with wind prevention hood

Country Status (1)

Country Link
JP (1) JPS5669558A (en)

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