MY187712A - Air conditioner and method for controlling opening of expansion valve thereof - Google Patents

Air conditioner and method for controlling opening of expansion valve thereof

Info

Publication number
MY187712A
MY187712A MYPI2014001127A MYPI2014001127A MY187712A MY 187712 A MY187712 A MY 187712A MY PI2014001127 A MYPI2014001127 A MY PI2014001127A MY PI2014001127 A MYPI2014001127 A MY PI2014001127A MY 187712 A MY187712 A MY 187712A
Authority
MY
Malaysia
Prior art keywords
expansion valve
temperature difference
discharge temperature
air conditioner
opening
Prior art date
Application number
MYPI2014001127A
Inventor
Yuichi Rokkaku
Original Assignee
Sharp Kk
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 Sharp Kk filed Critical Sharp Kk
Publication of MY187712A publication Critical patent/MY187712A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/31—Expansion valves
    • F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
    • F25B41/35—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators by rotary motors, e.g. by stepping motors
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/38—Expansion means; Dispositions thereof specially adapted for reversible cycles, e.g. bidirectional expansion restrictors
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/031—Sensor arrangements
    • F25B2313/0314—Temperature sensors near the indoor heat exchanger
    • 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
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/031—Sensor arrangements
    • F25B2313/0315—Temperature sensors near the outdoor heat exchanger
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

An object of the present invention is to provide an air conditioner which can realize ideal refrigeration cycle conditions and to provide a method for controlling opening of an expansion valve (10) of the air conditioner. In the present invention, a temperature difference between a discharge temperature of a compressor (6) and a temperature in the condensation process of a condenser is calculated as an actual discharge temperature difference, and the opening of the expansion valve (10) is adjusted and controlled so as to make the actual discharge temperature difference become a target discharge temperature difference set to obtain a target degree of superheat. At the time of the adjustment of opening of the expansion valve, the target discharge temperature difference is set and changed on the basis of information on the number of revolutions of an indoor fan (5). For example, when the number of revolutions of the indoor fan (5) is larger than a predetermined value, the target discharge temperature difference is corrected to be reduced. Thereby, the opening of the expansion valve (10) can be suitably controlled, so that the target degree of superheat can be obtained. (Fig.5)
MYPI2014001127A 2011-11-30 2012-11-26 Air conditioner and method for controlling opening of expansion valve thereof MY187712A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011261242A JP5855919B2 (en) 2011-11-30 2011-11-30 Air conditioner, expansion valve opening control method and program
PCT/JP2012/080483 WO2013080919A1 (en) 2011-11-30 2012-11-26 Air conditioner and method for controlling opening of expansion valve thereof

Publications (1)

Publication Number Publication Date
MY187712A true MY187712A (en) 2021-10-13

Family

ID=48535375

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2014001127A MY187712A (en) 2011-11-30 2012-11-26 Air conditioner and method for controlling opening of expansion valve thereof

Country Status (4)

Country Link
JP (1) JP5855919B2 (en)
CN (1) CN104024763B (en)
MY (1) MY187712A (en)
WO (1) WO2013080919A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6387246B2 (en) * 2014-05-19 2018-09-05 リンナイ株式会社 Heat pump heating device
CN104764243B (en) * 2015-03-31 2017-03-08 广东美的暖通设备有限公司 multiple on-line system
JP6836421B2 (en) * 2017-03-02 2021-03-03 シャープ株式会社 Air conditioner
CN110044005A (en) * 2019-05-08 2019-07-23 宁波奥克斯电气股份有限公司 A kind of air conditioning control method, device and air-conditioning
CN110388769B (en) * 2019-07-10 2021-09-21 郑州海尔空调器有限公司 Control method and control system of electronic expansion valve
CN113432298B (en) * 2021-06-28 2022-03-22 珠海格力电器股份有限公司 Control method and device of compression system and air-source heat pump water heater
CN114608127B (en) * 2022-01-26 2023-10-20 宁波奥克斯电气股份有限公司 Control method and device for improving noise of indoor unit and air conditioner
JP7139031B1 (en) 2022-02-15 2022-09-20 日立ジョンソンコントロールズ空調株式会社 air conditioner
CN114857663A (en) * 2022-05-12 2022-08-05 青岛海信日立空调系统有限公司 Air conditioning system and control method thereof

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08100956A (en) * 1994-09-30 1996-04-16 Daikin Ind Ltd Operation controller of air conditioner
JPH11230626A (en) * 1998-02-12 1999-08-27 Matsushita Electric Ind Co Ltd Refrigeration cycle device
JP2000055483A (en) * 1998-08-11 2000-02-25 Matsushita Electric Ind Co Ltd Air conditioner and its construction method
JP2002333189A (en) * 2001-05-11 2002-11-22 Fujitsu General Ltd Method of controlling air conditioner
JP2007212078A (en) * 2006-02-10 2007-08-23 Fujitsu General Ltd Air-conditioner control device
JP4854779B2 (en) * 2009-12-09 2012-01-18 シャープ株式会社 Air conditioner, expansion valve opening control method and program
JP2011196648A (en) * 2010-03-23 2011-10-06 Corona Corp Heat pump water heater

Also Published As

Publication number Publication date
CN104024763B (en) 2016-01-27
JP2013113520A (en) 2013-06-10
WO2013080919A1 (en) 2013-06-06
JP5855919B2 (en) 2016-02-09
CN104024763A (en) 2014-09-03

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