JPS5671622A - Controller for car cooler - Google Patents

Controller for car cooler

Info

Publication number
JPS5671622A
JPS5671622A JP14931279A JP14931279A JPS5671622A JP S5671622 A JPS5671622 A JP S5671622A JP 14931279 A JP14931279 A JP 14931279A JP 14931279 A JP14931279 A JP 14931279A JP S5671622 A JPS5671622 A JP S5671622A
Authority
JP
Japan
Prior art keywords
temperature
output
comparison amplifier
blow
lowered
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.)
Granted
Application number
JP14931279A
Other languages
Japanese (ja)
Other versions
JPS5824285B2 (en
Inventor
Taiji Tamura
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.)
Sankyo Denki Co Ltd
Sanden Corp
Original Assignee
Sankyo Denki Co Ltd
Sanden Corp
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 Sankyo Denki Co Ltd, Sanden Corp filed Critical Sankyo Denki Co Ltd
Priority to JP54149312A priority Critical patent/JPS5824285B2/en
Priority to US06/188,552 priority patent/US4326386A/en
Publication of JPS5671622A publication Critical patent/JPS5671622A/en
Publication of JPS5824285B2 publication Critical patent/JPS5824285B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H1/3204—Cooling devices using compression
    • B60H1/3205—Control means therefor
    • B60H1/321—Control means therefor for preventing the freezing of a heat exchanger
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3236—Cooling devices information from a variable is obtained
    • B60H2001/3255—Cooling devices information from a variable is obtained related to temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/32—Cooling devices
    • B60H2001/3269—Cooling devices output of a control signal
    • B60H2001/327—Cooling devices output of a control signal related to a compressing unit

Abstract

PURPOSE:To lower the operating rate of a refrigerator compressor by stopping the refrigerator compressor when an evaporator or its blow-off side air temperature is kept at less than a given temperature for given hours. CONSTITUTION:In a comparison amplifier OP1, when the temperature of air on blow-off side is lowered, the voltage of an inversional terminal becomes equal that of a noninversional terminal and output becomes a low level. For a comparison amplifier OP3, as soon as the output of the comparison amplifier OP1 goes a low level, a condensor C begins to discharge and its output turns a low level after the lapse of given hours. By this, electrification to an electromagnetic clutch MC is discontinued and a refrigerator compressor is stopped until the temperature of the compressor rises since the output of the comparison amplifier OP2 is lowered by a diode D2, during which period adherent frost is removed. In case where the temperature slightly rises again within given hours after lowering, the output of the comparison amplifier OP1 goes high level, a condenser C is charged by a diode D1, and operation again starts from when air temperature on blow-off side is lowered.
JP54149312A 1979-09-18 1979-11-16 Car cooler control device Expired JPS5824285B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP54149312A JPS5824285B2 (en) 1979-11-16 1979-11-16 Car cooler control device
US06/188,552 US4326386A (en) 1979-09-18 1980-09-18 Temperature control circuit for automobile air-conditioning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54149312A JPS5824285B2 (en) 1979-11-16 1979-11-16 Car cooler control device

Publications (2)

Publication Number Publication Date
JPS5671622A true JPS5671622A (en) 1981-06-15
JPS5824285B2 JPS5824285B2 (en) 1983-05-20

Family

ID=15472363

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54149312A Expired JPS5824285B2 (en) 1979-09-18 1979-11-16 Car cooler control device

Country Status (1)

Country Link
JP (1) JPS5824285B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09145125A (en) * 1995-11-24 1997-06-06 Matsushita Electric Ind Co Ltd Air conditioner

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023597U (en) * 1973-06-28 1975-03-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5023597U (en) * 1973-06-28 1975-03-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09145125A (en) * 1995-11-24 1997-06-06 Matsushita Electric Ind Co Ltd Air conditioner

Also Published As

Publication number Publication date
JPS5824285B2 (en) 1983-05-20

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