JPS562521A - Temperature alarm detecting system - Google Patents

Temperature alarm detecting system

Info

Publication number
JPS562521A
JPS562521A JP7872679A JP7872679A JPS562521A JP S562521 A JPS562521 A JP S562521A JP 7872679 A JP7872679 A JP 7872679A JP 7872679 A JP7872679 A JP 7872679A JP S562521 A JPS562521 A JP S562521A
Authority
JP
Japan
Prior art keywords
temperature
unit
δtd
tai
tao
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
JP7872679A
Other languages
Japanese (ja)
Inventor
Hiroshi Tamura
Atsuo Takemura
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 JP7872679A priority Critical patent/JPS562521A/en
Publication of JPS562521A publication Critical patent/JPS562521A/en
Pending legal-status Critical Current

Links

Landscapes

  • Emergency Alarm Devices (AREA)

Abstract

PURPOSE: To make it possible to detect an alarm by detecting and comparing a difference in temperature between two points to a fixed value.
CONSTITUTION: At the air inlet and outlet of unit 1, temperature detection parts T and T' are provided. With signals sent from temperature detection parts T and T', control part C' detects inlet air temperature Tai and outlet air temperature Tao to find a difference in temperature between the both, and further compares it to the sum of preset temperature rise ΔT due to the normal heating of unit 1 and detected temperature ΔTd of abnormal temperature increment in unit 1. Once (Tao-Tai)≥(ΔT+ΔTd) is detected, an alarm signal is sent out to unit 1 via signal line l2.
COPYRIGHT: (C)1981,JPO&Japio
JP7872679A 1979-06-22 1979-06-22 Temperature alarm detecting system Pending JPS562521A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7872679A JPS562521A (en) 1979-06-22 1979-06-22 Temperature alarm detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7872679A JPS562521A (en) 1979-06-22 1979-06-22 Temperature alarm detecting system

Publications (1)

Publication Number Publication Date
JPS562521A true JPS562521A (en) 1981-01-12

Family

ID=13669879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7872679A Pending JPS562521A (en) 1979-06-22 1979-06-22 Temperature alarm detecting system

Country Status (1)

Country Link
JP (1) JPS562521A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880538U (en) * 1981-11-27 1983-05-31 富士電機株式会社 Equipment temperature monitoring device
CN104165701A (en) * 2014-08-27 2014-11-26 福建星网锐捷网络有限公司 Method and device for detecting abnormal heat dissipation of electronic device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52152779A (en) * 1976-06-15 1977-12-19 Saginomiya Seisakusho Inc Apparatus to be actuated by correlation of temperature between two points

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52152779A (en) * 1976-06-15 1977-12-19 Saginomiya Seisakusho Inc Apparatus to be actuated by correlation of temperature between two points

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5880538U (en) * 1981-11-27 1983-05-31 富士電機株式会社 Equipment temperature monitoring device
CN104165701A (en) * 2014-08-27 2014-11-26 福建星网锐捷网络有限公司 Method and device for detecting abnormal heat dissipation of electronic device

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