CN100513792C - 压缩机驱动装置及冷冻空调装置 - Google Patents
压缩机驱动装置及冷冻空调装置 Download PDFInfo
- Publication number
- CN100513792C CN100513792C CNB031591264A CN03159126A CN100513792C CN 100513792 C CN100513792 C CN 100513792C CN B031591264 A CNB031591264 A CN B031591264A CN 03159126 A CN03159126 A CN 03159126A CN 100513792 C CN100513792 C CN 100513792C
- Authority
- CN
- China
- Prior art keywords
- mentioned
- compressor
- motor
- inverter apparatus
- rotor
- 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.)
- Expired - Fee Related
Links
- 230000008014 freezing Effects 0.000 title 1
- 238000007710 freezing Methods 0.000 title 1
- 230000006835 compression Effects 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims abstract description 12
- 239000004020 conductor Substances 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims description 15
- 238000004378 air conditioning Methods 0.000 claims description 12
- 230000015572 biosynthetic process Effects 0.000 claims description 7
- 239000002826 coolant Substances 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 9
- 238000001514 detection method Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000006200 vaporizer Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/08—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by varying the rotational speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
-
- 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
- F25B49/025—Motor control arrangements
-
- 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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
- H02P6/085—Arrangements for controlling the speed or torque of a single motor in a bridge configuration
-
- 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
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/20—Arrangements for starting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/40—Electric motor
- F04C2240/403—Electric motor with inverter for speed control
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
-
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- 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
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- 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
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0253—Compressor control by controlling speed with variable speed
-
- 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)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002262610A JP2004104895A (ja) | 2002-09-09 | 2002-09-09 | 圧縮機駆動装置及び冷凍空調装置 |
JP262610/2002 | 2002-09-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1502814A CN1502814A (zh) | 2004-06-09 |
CN100513792C true CN100513792C (zh) | 2009-07-15 |
Family
ID=32262613
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031591264A Expired - Fee Related CN100513792C (zh) | 2002-09-09 | 2003-09-09 | 压缩机驱动装置及冷冻空调装置 |
Country Status (4)
Country | Link |
---|---|
US (2) | US6925824B2 (zh) |
JP (1) | JP2004104895A (zh) |
KR (1) | KR100575292B1 (zh) |
CN (1) | CN100513792C (zh) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004104895A (ja) * | 2002-09-09 | 2004-04-02 | Hitachi Ltd | 圧縮機駆動装置及び冷凍空調装置 |
JP2002235958A (ja) * | 2001-02-09 | 2002-08-23 | Mitsubishi Heavy Ind Ltd | 空気調和機及びその制御方法 |
JP2006188156A (ja) * | 2005-01-06 | 2006-07-20 | Denso Corp | 蒸気圧縮式冷凍機 |
DE102005013773A1 (de) * | 2005-03-22 | 2006-09-28 | Diehl Ako Stiftung & Co. Kg | Verfahren zur Regelung einer Pumpe |
FR2885966B1 (fr) * | 2005-05-23 | 2011-01-14 | Danfoss Commercial Compressors | Compresseur frigorifique a spirales |
EP1910750B1 (en) * | 2005-07-29 | 2018-07-18 | Carrier Corporation | Speed control of multiple components in refrigerant systems |
JP4509010B2 (ja) * | 2005-11-29 | 2010-07-21 | 三菱重工業株式会社 | 永久磁石型同期モータの制御装置および方法ならびにプログラム |
US20070137233A1 (en) * | 2005-12-15 | 2007-06-21 | Matsushita Electric Industrial Co., Ltd. | Air conditioner |
JP2009524396A (ja) * | 2006-01-18 | 2009-06-25 | キャリア コーポレイション | 一体化された輸送冷却ユニット用の電力管理システム |
EP2126477A4 (en) * | 2006-12-29 | 2012-07-11 | Carrier Corp | VARIABLE FREQUENCY COMPRESSOR DRIVE DEVICE WITH WAIT |
WO2008142756A1 (ja) | 2007-05-18 | 2008-11-27 | Mitsubishi Heavy Industries, Ltd. | 永久磁石型同期モータの制御装置および方法ならびにプログラム |
US8459053B2 (en) | 2007-10-08 | 2013-06-11 | Emerson Climate Technologies, Inc. | Variable speed compressor protection system and method |
US8037713B2 (en) * | 2008-02-20 | 2011-10-18 | Trane International, Inc. | Centrifugal compressor assembly and method |
FI121130B (fi) | 2008-02-29 | 2010-07-15 | Vacon Oyj | Sähkömoottorin kytkeminen syöttöverkkoon |
US8516850B2 (en) * | 2008-07-14 | 2013-08-27 | Johnson Controls Technology Company | Motor cooling applications |
US8434323B2 (en) * | 2008-07-14 | 2013-05-07 | Johnson Controls Technology Company | Motor cooling applications |
KR101067550B1 (ko) | 2008-07-16 | 2011-09-27 | 엘지전자 주식회사 | 공기 조화 시스템 및 그 제어 방법 |
KR101766244B1 (ko) * | 2010-07-06 | 2017-08-08 | 엘지전자 주식회사 | 압축기 제어 장치와 방법, 및 이를 포함한 냉장고 |
KR101766243B1 (ko) * | 2010-07-06 | 2017-08-08 | 엘지전자 주식회사 | 압축기 제어 장치와 방법, 및 이를 포함한 냉장고 |
CN102163946B (zh) * | 2011-03-22 | 2012-12-12 | 徐广人 | 交流永磁同步电动机绕组调速装置 |
EP2851631B1 (en) * | 2012-04-16 | 2020-03-11 | Mitsubishi Electric Corporation | Heat pump device, air conditioner, and cooling machine |
US10234165B2 (en) * | 2012-07-21 | 2019-03-19 | Zhongshan Broad-Ocean Motor Co., Ltd. | HVAC control system for household central air conditioning |
JP6109312B2 (ja) * | 2013-07-03 | 2017-04-05 | 三菱電機株式会社 | モータ及び空気調和装置 |
US10375901B2 (en) | 2014-12-09 | 2019-08-13 | Mtd Products Inc | Blower/vacuum |
CN105737325B (zh) * | 2014-12-11 | 2018-10-26 | 中山大洋电机股份有限公司 | 一种单机空调系统及双机空调系统 |
US10203141B1 (en) * | 2016-10-25 | 2019-02-12 | Regal Beloit America, Inc. | Multi-stage compressor with variable speed drive and method of use |
US11206743B2 (en) | 2019-07-25 | 2021-12-21 | Emerson Climate Technolgies, Inc. | Electronics enclosure with heat-transfer element |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4566289A (en) * | 1983-11-16 | 1986-01-28 | Hitachi, Ltd. | Refrigerator control system |
US4856286A (en) * | 1987-12-02 | 1989-08-15 | American Standard Inc. | Refrigeration compressor driven by a DC motor |
US5952757A (en) * | 1995-12-04 | 1999-09-14 | General Electric Company | Line start permanent magnet motor |
US6408645B1 (en) * | 2000-02-14 | 2002-06-25 | Hitachi Air Conditioning Systems, Co. Ltd. | Air-conditioner, outdoor unit and refrigeration unit |
US20020116941A1 (en) * | 2001-02-28 | 2002-08-29 | Hitachi, Ltd. | Air conditioner |
Family Cites Families (38)
Publication number | Priority date | Publication date | Assignee | Title |
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US4064420A (en) | 1975-04-18 | 1977-12-20 | Matsushita Electric Industrial Co., Ltd. | Control system for pole-changing-motor-driven compressor |
JPS6023584B2 (ja) * | 1977-12-14 | 1985-06-08 | 株式会社日立製作所 | 永久磁石式同期電動機 |
JPS58148290A (ja) * | 1982-02-26 | 1983-09-03 | Hitachi Ltd | スクロ−ル圧縮機を用いた冷凍装置 |
DE3229351A1 (de) * | 1982-08-06 | 1984-02-09 | Robert Bosch Gmbh, 7000 Stuttgart | Kombinierte synchron-asynchronmaschine |
US4604420A (en) * | 1985-03-22 | 1986-08-05 | Polysar Limited | Vulcanizable polymer compositions with improved scorch |
JPS62197684A (ja) * | 1986-02-26 | 1987-09-01 | Hitachi Ltd | スクロ−ル圧縮機 |
JPH02179249A (ja) * | 1988-12-28 | 1990-07-12 | Matsushita Electric Ind Co Ltd | 小型電動機 |
JP2656627B2 (ja) * | 1989-08-02 | 1997-09-24 | 株式会社日立製作所 | 密閉形スクロール圧縮機の給油装置 |
JP2755469B2 (ja) * | 1989-09-27 | 1998-05-20 | 株式会社日立製作所 | 空気調和機 |
JP2618501B2 (ja) * | 1989-10-30 | 1997-06-11 | 株式会社日立製作所 | 低温用スクロール式冷凍装置 |
JPH0431689A (ja) * | 1990-05-24 | 1992-02-03 | Hitachi Ltd | スクロール圧縮機およびそれを用いた冷凍サイクル |
JP2666612B2 (ja) * | 1991-07-18 | 1997-10-22 | 株式会社日立製作所 | 密閉形スクロール圧縮機 |
JP2718295B2 (ja) * | 1991-08-30 | 1998-02-25 | ダイキン工業株式会社 | スクロール圧縮機 |
KR960015822B1 (ko) * | 1991-10-03 | 1996-11-21 | 가부시끼가이샤 히다찌세이사꾸쇼 | 밀폐형 전동압축기 |
JP3183356B2 (ja) | 1992-01-30 | 2001-07-09 | ダイキン工業株式会社 | ブラシレスdcモータ駆動方法およびその装置 |
JPH0622592A (ja) * | 1992-07-03 | 1994-01-28 | Toshiba Corp | モータ制御回路 |
US5329788A (en) * | 1992-07-13 | 1994-07-19 | Copeland Corporation | Scroll compressor with liquid injection |
JPH06351206A (ja) * | 1993-04-14 | 1994-12-22 | Meidensha Corp | ハイブリッド励磁形永久磁石同期回転機 |
US5666015A (en) * | 1993-04-30 | 1997-09-09 | Sanyo Electric Co., Ltd. | Electric motor for a compressor with a rotor with combined balance weights and oil separation disk |
US5510662A (en) * | 1993-05-26 | 1996-04-23 | Kabushiki Kaisha Toshiba | Permanent magnet motor |
US5544493A (en) * | 1993-07-07 | 1996-08-13 | Nippondenso Co., Ltd. | Air-conditioning device for electric automobiles |
US5469716A (en) * | 1994-05-03 | 1995-11-28 | Copeland Corporation | Scroll compressor with liquid injection |
JP3509299B2 (ja) * | 1995-06-20 | 2004-03-22 | 株式会社日立製作所 | スクロール圧縮機 |
US5797729A (en) * | 1996-02-16 | 1998-08-25 | Aspen Systems, Inc. | Controlling multiple variable speed compressors |
JPH09322444A (ja) | 1996-05-29 | 1997-12-12 | Toshiba Corp | 制御装置付き永久磁石電動機 |
JP3924817B2 (ja) * | 1996-09-20 | 2007-06-06 | 株式会社日立製作所 | 容積形流体機械 |
JP3874469B2 (ja) * | 1996-10-04 | 2007-01-31 | 株式会社日立製作所 | スクロール圧縮機 |
US5955807A (en) * | 1997-04-25 | 1999-09-21 | Denso Corporation | Synchronous electric machine having auxiliary permanent magnet |
US5931650A (en) * | 1997-06-04 | 1999-08-03 | Matsushita Electric Industrial Co., Ltd. | Hermetic electric scroll compressor having a lubricating passage in the orbiting scroll |
DE29801184U1 (de) * | 1998-01-26 | 1999-05-20 | Robert Bosch Gmbh, 70469 Stuttgart | Synchronmaschine, insbesondere Generator für ein Kraftfahrzeug |
US5970728A (en) * | 1998-04-10 | 1999-10-26 | Hebert; Thomas H. | Multiple compressor heat pump or air conditioner |
JP2001003864A (ja) | 1999-06-16 | 2001-01-09 | Mitsubishi Electric Corp | 空気調和装置 |
US6216474B1 (en) * | 1999-09-27 | 2001-04-17 | Carrier Corporation | Part load performance of variable speed screw compressor |
JP4639413B2 (ja) * | 1999-12-06 | 2011-02-23 | ダイキン工業株式会社 | スクロール圧縮機および空気調和機 |
JP3632747B2 (ja) | 2000-01-31 | 2005-03-23 | 株式会社日立製作所 | 永久磁石界磁同期電動機およびその製造方法並びにこれを用いた圧縮機 |
JP2004104895A (ja) * | 2002-09-09 | 2004-04-02 | Hitachi Ltd | 圧縮機駆動装置及び冷凍空調装置 |
JP3866925B2 (ja) * | 2000-02-18 | 2007-01-10 | 株式会社日立産機システム | スクロール圧縮機 |
JP4122451B2 (ja) | 2001-07-06 | 2008-07-23 | 株式会社日立産機システム | 圧縮空気製造システム |
-
2002
- 2002-09-09 JP JP2002262610A patent/JP2004104895A/ja active Pending
-
2003
- 2003-09-08 KR KR1020030062539A patent/KR100575292B1/ko active IP Right Grant
- 2003-09-08 US US10/656,198 patent/US6925824B2/en not_active Expired - Fee Related
- 2003-09-09 CN CNB031591264A patent/CN100513792C/zh not_active Expired - Fee Related
-
2005
- 2005-05-13 US US11/128,350 patent/US7437882B2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4566289A (en) * | 1983-11-16 | 1986-01-28 | Hitachi, Ltd. | Refrigerator control system |
US4856286A (en) * | 1987-12-02 | 1989-08-15 | American Standard Inc. | Refrigeration compressor driven by a DC motor |
US5952757A (en) * | 1995-12-04 | 1999-09-14 | General Electric Company | Line start permanent magnet motor |
US6408645B1 (en) * | 2000-02-14 | 2002-06-25 | Hitachi Air Conditioning Systems, Co. Ltd. | Air-conditioner, outdoor unit and refrigeration unit |
US20020116941A1 (en) * | 2001-02-28 | 2002-08-29 | Hitachi, Ltd. | Air conditioner |
Also Published As
Publication number | Publication date |
---|---|
US7437882B2 (en) | 2008-10-21 |
US6925824B2 (en) | 2005-08-09 |
CN1502814A (zh) | 2004-06-09 |
JP2004104895A (ja) | 2004-04-02 |
KR100575292B1 (ko) | 2006-04-28 |
US20040159115A1 (en) | 2004-08-19 |
US20050268631A1 (en) | 2005-12-08 |
KR20040023546A (ko) | 2004-03-18 |
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