WO2008143231A1 - ファン制御システム、及びそのファン制御システムを備えた空調機 - Google Patents

ファン制御システム、及びそのファン制御システムを備えた空調機 Download PDF

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Publication number
WO2008143231A1
WO2008143231A1 PCT/JP2008/059177 JP2008059177W WO2008143231A1 WO 2008143231 A1 WO2008143231 A1 WO 2008143231A1 JP 2008059177 W JP2008059177 W JP 2008059177W WO 2008143231 A1 WO2008143231 A1 WO 2008143231A1
Authority
WO
WIPO (PCT)
Prior art keywords
fan
motor
control system
same
air conditioner
Prior art date
Application number
PCT/JP2008/059177
Other languages
English (en)
French (fr)
Inventor
Toshiaki Sato
Hiroshi Doumae
Sumio Kagimura
Original Assignee
Daikin Industries, 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 Daikin Industries, Ltd. filed Critical Daikin Industries, Ltd.
Priority to EP08752973.1A priority Critical patent/EP2163768B1/en
Priority to CN2008800142630A priority patent/CN101675250B/zh
Priority to US12/600,234 priority patent/US8801390B2/en
Priority to ES08752973.1T priority patent/ES2661315T3/es
Publication of WO2008143231A1 publication Critical patent/WO2008143231A1/ja
Priority to US13/327,382 priority patent/US8773048B2/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P5/00—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors
    • H02P5/68—Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors controlling two or more dc dynamo-electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/166—Combinations of two or more pumps ; Producing two or more separate gas flows using fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/85—Starting
    • 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
    • F25B2600/11—Fan speed control
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Power Engineering (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

複数のファンを制御するシステムであって、稼働中のファンが過負荷状態になったときに、過負荷の解消を行なうファン制御システムを提供する。ファン制御システムは、第１ファン（２１）と、第１ファン（２１）に隣接する第２ファン（２２）と、第１ファン（２１）を回転させる第１モータ（３１）と、第２ファン（２２）を回転させる第２モータ（３２）と、制御部（４）とを備えている。制御部（４）は、第１モータ（３１）及び第２モータ（３２）の回転数を制御し、第１モータ（３１）の回転数を低下させなければならない状態になったとき、第１モータ（３１）の回転数を低下させるとともに第２モータ（３２）の回転数を低下させる。
PCT/JP2008/059177 2007-05-22 2008-05-20 ファン制御システム、及びそのファン制御システムを備えた空調機 WO2008143231A1 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP08752973.1A EP2163768B1 (en) 2007-05-22 2008-05-20 Fan control system and air conditioner having the same
CN2008800142630A CN101675250B (zh) 2007-05-22 2008-05-20 风扇控制系统、以及配备该风扇控制系统的空调机
US12/600,234 US8801390B2 (en) 2007-05-22 2008-05-20 Fan control system and air conditioner that includes the same
ES08752973.1T ES2661315T3 (es) 2007-05-22 2008-05-20 Sistema de control de ventilador y acondicionador de aire que comprende el mismo
US13/327,382 US8773048B2 (en) 2007-05-22 2011-12-15 Fan control system and air conditioner that includes the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-135038 2007-05-22
JP2007135038A JP4254885B2 (ja) 2007-05-22 2007-05-22 ファン制御システム、及びそのファン制御システムを備えた空調機

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/600,234 A-371-Of-International US8801390B2 (en) 2007-05-22 2008-05-20 Fan control system and air conditioner that includes the same
US13/327,382 Division US8773048B2 (en) 2007-05-22 2011-12-15 Fan control system and air conditioner that includes the same

Publications (1)

Publication Number Publication Date
WO2008143231A1 true WO2008143231A1 (ja) 2008-11-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/059177 WO2008143231A1 (ja) 2007-05-22 2008-05-20 ファン制御システム、及びそのファン制御システムを備えた空調機

Country Status (7)

Country Link
US (2) US8801390B2 (ja)
EP (1) EP2163768B1 (ja)
JP (1) JP4254885B2 (ja)
CN (2) CN101675250B (ja)
ES (1) ES2661315T3 (ja)
TR (1) TR201802357T4 (ja)
WO (1) WO2008143231A1 (ja)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1390714B1 (it) * 2008-07-11 2011-09-15 Spal Automotive Srl Sistema di ventilazione
DK179101B1 (en) 2010-08-23 2017-10-30 Inventilate Holding Aps A method for controlling a ventilation system for the ventilation of an enclosure and a ventilation system
CN103098352B (zh) * 2010-09-15 2016-06-29 三菱电机株式会社 电力转换装置、电动机、空调和换气送风设备
EP2754971B1 (en) * 2011-08-31 2020-05-13 Sanyo Electric Co., Ltd Air-conditioning device and method for controlling air-conditioning device
JP6031340B2 (ja) * 2012-11-26 2016-11-24 株式会社長府製作所 空気調和機のファン制御方法及び空気調和機
JP6239389B2 (ja) * 2014-01-21 2017-11-29 東芝キヤリア株式会社 ダクト式空気調和装置
JP5770321B2 (ja) * 2014-02-04 2015-08-26 ファナック株式会社 ファンモータを備えた電子機器
JP6482796B2 (ja) * 2014-09-08 2019-03-13 三菱重工サーマルシステムズ株式会社 モータ制御装置及びその方法
KR102436704B1 (ko) * 2015-03-23 2022-08-25 엘지전자 주식회사 팬 모터 구동장치 및 이를 구비하는 공기조화기
JP6491025B2 (ja) * 2015-04-20 2019-03-27 株式会社マキタ 背負い式ブロワ
JP6481574B2 (ja) * 2015-09-18 2019-03-13 富士通株式会社 電子機器におけるファンの保守方法
CN106936342B (zh) * 2015-12-31 2019-07-05 中山大洋电机股份有限公司 一种多电机驱动的送风设备恒风量控制方法
US10401046B2 (en) * 2016-10-05 2019-09-03 Johnson Controls Technology Company Indoor and outdoor units for an HVAC system
JP6557205B2 (ja) * 2016-12-07 2019-08-07 ファナック株式会社 ファンモータ制御装置
CN110056524B (zh) * 2018-01-17 2021-07-09 台达电子工业股份有限公司 风扇故障备援装置及其备援方法
JP7031464B2 (ja) * 2018-04-17 2022-03-08 トヨタ自動車株式会社 内燃機関の遮音システム
CN112272917B (zh) * 2018-06-18 2024-05-03 三菱电机株式会社 电机驱动装置及制冷循环应用设备
MX2021005799A (es) 2018-12-13 2021-07-02 Baltimore Aircoil Co Inc Sistema de control de respuesta de falla de un arreglo de ventiladores.
CN112594902B (zh) * 2020-12-03 2022-10-28 重庆海尔空调器有限公司 一种空调器的控制方法和系统
JP7176031B2 (ja) * 2021-03-22 2022-11-21 株式会社日立製作所 情報処理装置及び情報処理装置のファン制御方法
CN113587212A (zh) * 2021-07-26 2021-11-02 珠海格力电器股份有限公司 一种一拖二空调室外机结构、空调器及其控制方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5095802A (ja) * 1973-12-27 1975-07-30
JPS58218881A (ja) * 1982-06-14 1983-12-20 Matsushita Electric Ind Co Ltd 複数個の直流モ−タを有する装置
JPS60104797A (ja) * 1983-11-10 1985-06-10 Mitsubishi Electric Corp 風量制御装置
JPS6481695A (en) * 1987-09-22 1989-03-27 Nippon Telegraph & Telephone Fan unit
JPH06307382A (ja) * 1993-04-28 1994-11-01 Matsushita Seiko Co Ltd 天井扇風機の制御装置
JPH07287625A (ja) * 1994-04-18 1995-10-31 Fujitsu Ltd 冷却用ファン付き装置とそのファン制御方法
JPH0894156A (ja) * 1994-09-27 1996-04-12 Toshiba Corp 空気調和機における送風機の制御装置
JPH08303386A (ja) 1995-05-08 1996-11-19 Matsushita Electric Ind Co Ltd ファンモータシステム
JPH1150993A (ja) * 1997-08-06 1999-02-23 Nec Corp Ｄｃファン駆動回路、ｄｃファン起動方法およびｄｃファン駆動制御方法
JP2004293482A (ja) * 2003-03-27 2004-10-21 Kyocera Corp 換気装置
JP2005223320A (ja) * 2004-01-23 2005-08-18 Hewlett-Packard Development Co Lp ターボ冷却器組み立て品における重複ファンシステム

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5040377A (en) * 1989-11-21 1991-08-20 Johnson Service Company Cooling system with improved fan control and method
US4988930A (en) * 1990-04-25 1991-01-29 Oberheide George C Plural motor fan system with improved speed control
JPH06317292A (ja) * 1993-05-07 1994-11-15 Osaka Gas Co Ltd 気体供給装置におけるブロワの運転用装置
US5422550A (en) * 1993-05-27 1995-06-06 Southwest Electric Company Control of multiple motors, including motorized pumping system and method
JP3213156B2 (ja) * 1994-03-15 2001-10-02 富士通株式会社 電子機器
US5796221A (en) * 1994-07-14 1998-08-18 Paper Converting Machine Company Overload detector for servo driven machines
JP3188604B2 (ja) * 1995-03-30 2001-07-16 株式会社山武 空調制御装置
JPH1151454A (ja) 1997-08-06 1999-02-26 Fujitsu General Ltd 空気調和機の制御方法
JPH11248300A (ja) * 1998-03-04 1999-09-14 Sanyo Electric Co Ltd 空気調和装置
US6487463B1 (en) * 1998-06-08 2002-11-26 Gateway, Inc. Active cooling system for an electronic device
JP2000166294A (ja) * 1998-11-25 2000-06-16 Topre Corp 同期モータの群運転制御方法及びシステム
DE19911036C1 (de) * 1999-03-12 2000-06-21 Mannesmann Vdo Ag Regler für Heizungs- und Klimageräte in Kraftfahrzeugen
JP2000346512A (ja) * 1999-06-03 2000-12-15 Fujitsu Ltd 冷却装置
US6428282B1 (en) * 1999-06-14 2002-08-06 Hewlett-Packard Company System with fan speed synchronization control
US6400113B1 (en) * 2000-07-19 2002-06-04 International Business Machines Corporation Apparatus and method for monitoring fan speeds within a computing system
US6573671B2 (en) * 2001-07-13 2003-06-03 Dell Products L.P. Fan reliability
DE10140094B4 (de) * 2001-08-16 2006-03-30 Robert Bosch Gmbh Kühlgebläse, insbesondere für Kraftfahrzeuge
TW200308140A (en) * 2002-01-31 2003-12-16 Daikin Ind Ltd Rotation speed control system, rotation drive system, ventilation system, clean bench, outdoor device of air conditioner
US6725132B2 (en) * 2002-06-20 2004-04-20 Minebea Co., Ltd. Intelligent cooling fan
DE10230253A1 (de) * 2002-07-04 2004-01-22 Behr Gmbh & Co. Anordnung und Verfahren zum Schutz vor Überlast eines Elektromotors
US6824362B2 (en) * 2002-07-15 2004-11-30 Adc Dsl Systems, Inc. Fan control system
US6933687B2 (en) * 2002-10-03 2005-08-23 Siemens Vdo Automotive Inc. Dual motor configuration with primary brushless motor and secondary integrated speed control motor
JP4583001B2 (ja) * 2003-03-17 2010-11-17 三洋電機株式会社 送風機制御装置
US7091685B2 (en) * 2004-01-22 2006-08-15 Siemens Vdo Automotive Inc. Overload protection for DC motors
US7095188B1 (en) * 2005-03-10 2006-08-22 Inventec Corporation Serial fan set and rotation speed-matching curve generation method thereof
US7132809B1 (en) * 2005-11-09 2006-11-07 Inventec Corporation Fan-controlling system to control a plurality of fans with different pulse width modulation signals
US7205737B1 (en) * 2006-01-04 2007-04-17 Robert Bosch Gmbh Systems and methods of monitoring a motor load

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5095802A (ja) * 1973-12-27 1975-07-30
JPS58218881A (ja) * 1982-06-14 1983-12-20 Matsushita Electric Ind Co Ltd 複数個の直流モ−タを有する装置
JPS60104797A (ja) * 1983-11-10 1985-06-10 Mitsubishi Electric Corp 風量制御装置
JPS6481695A (en) * 1987-09-22 1989-03-27 Nippon Telegraph & Telephone Fan unit
JPH06307382A (ja) * 1993-04-28 1994-11-01 Matsushita Seiko Co Ltd 天井扇風機の制御装置
JPH07287625A (ja) * 1994-04-18 1995-10-31 Fujitsu Ltd 冷却用ファン付き装置とそのファン制御方法
JPH0894156A (ja) * 1994-09-27 1996-04-12 Toshiba Corp 空気調和機における送風機の制御装置
JPH08303386A (ja) 1995-05-08 1996-11-19 Matsushita Electric Ind Co Ltd ファンモータシステム
JPH1150993A (ja) * 1997-08-06 1999-02-23 Nec Corp Ｄｃファン駆動回路、ｄｃファン起動方法およびｄｃファン駆動制御方法
JP2004293482A (ja) * 2003-03-27 2004-10-21 Kyocera Corp 換気装置
JP2005223320A (ja) * 2004-01-23 2005-08-18 Hewlett-Packard Development Co Lp ターボ冷却器組み立て品における重複ファンシステム

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2163768A4

Also Published As

Publication number Publication date
US8801390B2 (en) 2014-08-12
TR201802357T4 (tr) 2018-03-21
EP2163768B1 (en) 2018-01-31
US20120103590A1 (en) 2012-05-03
EP2163768A4 (en) 2014-07-16
JP4254885B2 (ja) 2009-04-15
CN101675250B (zh) 2012-03-28
US20100226792A1 (en) 2010-09-09
JP2008291656A (ja) 2008-12-04
EP2163768A1 (en) 2010-03-17
CN102384100B (zh) 2014-10-01
ES2661315T3 (es) 2018-03-28
CN102384100A (zh) 2012-03-21
CN101675250A (zh) 2010-03-17
US8773048B2 (en) 2014-07-08

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