JPS5660041A - Cooling fan controlling system - Google Patents

Cooling fan controlling system

Info

Publication number
JPS5660041A
JPS5660041A JP13547279A JP13547279A JPS5660041A JP S5660041 A JPS5660041 A JP S5660041A JP 13547279 A JP13547279 A JP 13547279A JP 13547279 A JP13547279 A JP 13547279A JP S5660041 A JPS5660041 A JP S5660041A
Authority
JP
Japan
Prior art keywords
cooling fan
temperature
voltage
accordance
rotating speed
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
JP13547279A
Other languages
Japanese (ja)
Inventor
Toshifumi Washio
Hiroyuki Odagiri
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 JP13547279A priority Critical patent/JPS5660041A/en
Publication of JPS5660041A publication Critical patent/JPS5660041A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/22—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element being a thermocouple
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

PURPOSE:To exactly operate a cooling fan for long term by measuring the temperature of an object to be cooled, varying the operating voltage of the cooling fan in accordance with the temperature thereby controlling the rotating speed of the cooling fan, thereby preventing the deterioration of the cooling system. CONSTITUTION:A thermocouple is employed in a temperature detector 5, the detector 5 is mounted on an object apparatus 1 to be cooled, the temperature of the apparatus 1 is measured, and a temperature signal voltage 7 proportional to the temperature is transmitted to a voltage controller 6. The voltage controller 6 thus controls the signal voltage 3 supplied from the apparatus 1 in accordance with the signal voltage 7 and supplies the signal voltage 3 to the cooling fan 2 as the operating voltage 8 for the cooling fan. As the operating voltage 8 is varied, the rotating speed of the cooling fan 2 will change. Since the rotating speed of the cooling fan 2 is varied in accordance with the temperature change of the apparatus 1, the deteriorating period of the cooling fan 2 can be prolonged and the efficient cooling can be conducted.
JP13547279A 1979-10-19 1979-10-19 Cooling fan controlling system Pending JPS5660041A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13547279A JPS5660041A (en) 1979-10-19 1979-10-19 Cooling fan controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13547279A JPS5660041A (en) 1979-10-19 1979-10-19 Cooling fan controlling system

Publications (1)

Publication Number Publication Date
JPS5660041A true JPS5660041A (en) 1981-05-23

Family

ID=15152506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13547279A Pending JPS5660041A (en) 1979-10-19 1979-10-19 Cooling fan controlling system

Country Status (1)

Country Link
JP (1) JPS5660041A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58181332A (en) * 1982-04-19 1983-10-24 Nec Corp Cooling control system of large power artificial load device
JPS5972040U (en) * 1982-11-02 1984-05-16 株式会社東芝 Television broadcaster power amplifier
JPS60137047A (en) * 1983-12-26 1985-07-20 Nec Corp Temperature rising preventing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58181332A (en) * 1982-04-19 1983-10-24 Nec Corp Cooling control system of large power artificial load device
JPS5972040U (en) * 1982-11-02 1984-05-16 株式会社東芝 Television broadcaster power amplifier
JPS60137047A (en) * 1983-12-26 1985-07-20 Nec Corp Temperature rising preventing device

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