JPS5643020A - Car-cooler controller - Google Patents

Car-cooler controller

Info

Publication number
JPS5643020A
JPS5643020A JP11879079A JP11879079A JPS5643020A JP S5643020 A JPS5643020 A JP S5643020A JP 11879079 A JP11879079 A JP 11879079A JP 11879079 A JP11879079 A JP 11879079A JP S5643020 A JPS5643020 A JP S5643020A
Authority
JP
Japan
Prior art keywords
temperature
amplifier
brought
lowered
fixed value
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
JP11879079A
Other languages
Japanese (ja)
Other versions
JPS5827126B2 (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 JP54118790A priority Critical patent/JPS5827126B2/en
Priority to US06/188,552 priority patent/US4326386A/en
Publication of JPS5643020A publication Critical patent/JPS5643020A/en
Publication of JPS5827126B2 publication Critical patent/JPS5827126B2/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 prevent the frosting of an evaporator and give full play to the cooling capacity in a car cooler by providing a circuit to stop a refrigerant compressor when the temperature of the air on the blow-off side of the evaporator is maintained under a temperature a little higher than a fixed value for a fixed time as well as the same temperature is lowered as far as this fixed value. CONSTITUTION:A comparison amplifier OP1 is brought to a low-level output when the air temperature on the blow-off side of an evaporator is lowered to a fixed value T1 by the detection output of a thermistor Th1, while a comparison amplifier OP2 when the same temperature is lowered to a fixed value T2 lower than T1. The amplifier OP2 is brought to a high-level output when the temperature is raised to a fixed value T3. When the amplifier OP1 is brought to the low-level output, a comparison amplifier OP3 is brought to a low level after a fixed time by a delay circuit composed of a resistance R7 and a condenser C. At this stage, since the amplifier OP2 is also brought to the low level by a diode D2, a refrigerant compressor is stopped until the temperature on the blow-off side is raised to T3, and during this stoppage, defrosting is carried on. When the temperature on the blow-off side is again raised above T1 within a fixed time after being lowered to T1, the amplifier OP1 is returned to the high level via a diode D1 and started to operate when the temperature is again lowered to T1.
JP54118790A 1979-09-18 1979-09-18 car cooler control device Expired JPS5827126B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP54118790A JPS5827126B2 (en) 1979-09-18 1979-09-18 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
JP54118790A JPS5827126B2 (en) 1979-09-18 1979-09-18 car cooler control device

Publications (2)

Publication Number Publication Date
JPS5643020A true JPS5643020A (en) 1981-04-21
JPS5827126B2 JPS5827126B2 (en) 1983-06-07

Family

ID=14745151

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54118790A Expired JPS5827126B2 (en) 1979-09-18 1979-09-18 car cooler control device

Country Status (1)

Country Link
JP (1) JPS5827126B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194115A (en) * 1981-05-26 1982-11-29 Nissan Motor Co Ltd Automotive air conditioner
JP4839308B2 (en) * 2004-04-05 2011-12-21 ローズマウント インコーポレイテッド Scaleable averaging insertion vortex flowmeter

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0474672U (en) * 1990-11-14 1992-06-30

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194115A (en) * 1981-05-26 1982-11-29 Nissan Motor Co Ltd Automotive air conditioner
JP4839308B2 (en) * 2004-04-05 2011-12-21 ローズマウント インコーポレイテッド Scaleable averaging insertion vortex flowmeter

Also Published As

Publication number Publication date
JPS5827126B2 (en) 1983-06-07

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