JPS6457054A - Controller for refrigeration cycle - Google Patents

Controller for refrigeration cycle

Info

Publication number
JPS6457054A
JPS6457054A JP21485587A JP21485587A JPS6457054A JP S6457054 A JPS6457054 A JP S6457054A JP 21485587 A JP21485587 A JP 21485587A JP 21485587 A JP21485587 A JP 21485587A JP S6457054 A JPS6457054 A JP S6457054A
Authority
JP
Japan
Prior art keywords
rotational speed
compressor
superheat degree
control signal
control
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
JP21485587A
Other languages
Japanese (ja)
Inventor
Yuji Honda
Akio Matsuoka
Tatsuya Oike
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.)
Denso Corp
Original Assignee
NipponDenso Co 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP21485587A priority Critical patent/JPS6457054A/en
Publication of JPS6457054A publication Critical patent/JPS6457054A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/21—Refrigerant outlet evaporator temperature

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: To efficiently control a superheat degree by providing a control means for calculating and outputting a control signal for deciding a valve opening of an electric expansion valve based on refrigerant information to be output from respective sensors and rotational speed information corresponding to a rotational speed of a compressor. CONSTITUTION: Detected signals from a refrigerant temperature sensor 8 arranged at an inlet portion of an evaporator 5, a refrigerant temperature sensor 9 arranged at a suction inlet portion of a compressor 1 and a rotational speed sensor for detecting a rotational speed of the compressor are input to a control circuit 7, which in turn generates at its output a control signal for deciding a valve opening of an electric expansion valve 4, and the control signal is given to the valve 4. When a switch for operating a refrigerating cycle is closed, the circuit 7 judges the state of a rotational speed Nc of the compressor 1 based on the signal given from the rotational speed sensor, controls so that a superheat degree S.Hcs of the suction side of the compressor 1 becomes suitable at the time of a high speed rotation, and controls so that the superheat degree S.Heo of an outlet side of the evaporator 5 becomes optimum at the time of a low speed rotation.
JP21485587A 1987-08-28 1987-08-28 Controller for refrigeration cycle Pending JPS6457054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21485587A JPS6457054A (en) 1987-08-28 1987-08-28 Controller for refrigeration cycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21485587A JPS6457054A (en) 1987-08-28 1987-08-28 Controller for refrigeration cycle

Publications (1)

Publication Number Publication Date
JPS6457054A true JPS6457054A (en) 1989-03-03

Family

ID=16662667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21485587A Pending JPS6457054A (en) 1987-08-28 1987-08-28 Controller for refrigeration cycle

Country Status (1)

Country Link
JP (1) JPS6457054A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2306124A1 (en) * 2009-09-28 2011-04-06 Fujitsu General Limited Heat pump apparatus
WO2012027241A1 (en) * 2010-08-23 2012-03-01 Carrier Corporation Electric expansion valve control for a refrigeration system
US20130174591A1 (en) * 2010-09-13 2013-07-11 Carrier Corporation Superheat control for a refrigerant vapor compression system
CN106949675A (en) * 2017-04-05 2017-07-14 珠海格力电器股份有限公司 A kind of electronic expansion valve controls signal supervisory instrument

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2306124A1 (en) * 2009-09-28 2011-04-06 Fujitsu General Limited Heat pump apparatus
CN102032704A (en) * 2009-09-28 2011-04-27 富士通将军股份有限公司 Heat pump apparatus
WO2012027241A1 (en) * 2010-08-23 2012-03-01 Carrier Corporation Electric expansion valve control for a refrigeration system
US20130174591A1 (en) * 2010-09-13 2013-07-11 Carrier Corporation Superheat control for a refrigerant vapor compression system
CN106949675A (en) * 2017-04-05 2017-07-14 珠海格力电器股份有限公司 A kind of electronic expansion valve controls signal supervisory instrument

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