EP1087184A3 - Air conditioner - Google Patents

Air conditioner Download PDF

Info

Publication number
EP1087184A3
EP1087184A3 EP00307919A EP00307919A EP1087184A3 EP 1087184 A3 EP1087184 A3 EP 1087184A3 EP 00307919 A EP00307919 A EP 00307919A EP 00307919 A EP00307919 A EP 00307919A EP 1087184 A3 EP1087184 A3 EP 1087184A3
Authority
EP
European Patent Office
Prior art keywords
compressor
microcomputer
current sensor
driving means
judges
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
EP00307919A
Other languages
German (de)
French (fr)
Other versions
EP1087184A2 (en
EP1087184B1 (en
Inventor
Akihiro Kai
Masaya Itagaki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of EP1087184A2 publication Critical patent/EP1087184A2/en
Publication of EP1087184A3 publication Critical patent/EP1087184A3/en
Application granted granted Critical
Publication of EP1087184B1 publication Critical patent/EP1087184B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • 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
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/50—Load
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/15—Power, e.g. by voltage or current
    • F25B2700/151—Power, e.g. by voltage or current of the compressor motor
    • 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
    • F25B49/022—Compressor control arrangements

Abstract

A refrigerant circulation circuit circulates a refrigerant discharged from a compressor (1) through a condenser (3) to an evaporator (5). A current sensor (15) detects an operating current for the compressor (1). A microcomputer (7) judges an operating condition of the compressor (1) based on a result detected by the current sensor (15). Driving means (17b, 19a, 19b, 20) receive an instruction from the microcomputer (7) to drive the compressor (1). A high-pressure switch (8) is connected in series to the electric circuit of the driving means and is operable based on a discharge pressure of the compressor (1). The microcomputer (7) judges absence or presence of operation of the high-pressure switch (8) based on the result detected by the current sensor (15).
EP00307919A 1999-09-24 2000-09-13 Air conditioner Expired - Lifetime EP1087184B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27036299A JP3703346B2 (en) 1999-09-24 1999-09-24 Air conditioner
JP27036299 1999-09-24

Publications (3)

Publication Number Publication Date
EP1087184A2 EP1087184A2 (en) 2001-03-28
EP1087184A3 true EP1087184A3 (en) 2002-10-02
EP1087184B1 EP1087184B1 (en) 2005-05-04

Family

ID=17485223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00307919A Expired - Lifetime EP1087184B1 (en) 1999-09-24 2000-09-13 Air conditioner

Country Status (4)

Country Link
EP (1) EP1087184B1 (en)
JP (1) JP3703346B2 (en)
CN (1) CN1135337C (en)
ES (1) ES2241555T3 (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3896472B2 (en) * 2002-09-04 2007-03-22 株式会社日立製作所 Refrigeration equipment
JP2005308319A (en) * 2004-04-22 2005-11-04 Matsushita Electric Ind Co Ltd Air conditioner with pump-down function
US7412842B2 (en) 2004-04-27 2008-08-19 Emerson Climate Technologies, Inc. Compressor diagnostic and protection system
US7275377B2 (en) 2004-08-11 2007-10-02 Lawrence Kates Method and apparatus for monitoring refrigerant-cycle systems
US8590325B2 (en) 2006-07-19 2013-11-26 Emerson Climate Technologies, Inc. Protection and diagnostic module for a refrigeration system
US20080216494A1 (en) 2006-09-07 2008-09-11 Pham Hung M Compressor data module
US20090037142A1 (en) 2007-07-30 2009-02-05 Lawrence Kates Portable method and apparatus for monitoring refrigerant-cycle systems
US8393169B2 (en) 2007-09-19 2013-03-12 Emerson Climate Technologies, Inc. Refrigeration monitoring system and method
US9140728B2 (en) 2007-11-02 2015-09-22 Emerson Climate Technologies, Inc. Compressor sensor module
US8160827B2 (en) 2007-11-02 2012-04-17 Emerson Climate Technologies, Inc. Compressor sensor module
CN101865515A (en) * 2010-05-26 2010-10-20 广东欧科空调制冷有限公司 Air conditioning unit for controlling system load by current variation
AU2012223466B2 (en) 2011-02-28 2015-08-13 Emerson Electric Co. Residential solutions HVAC monitoring and diagnosis
US8964338B2 (en) 2012-01-11 2015-02-24 Emerson Climate Technologies, Inc. System and method for compressor motor protection
US9480177B2 (en) 2012-07-27 2016-10-25 Emerson Climate Technologies, Inc. Compressor protection module
US9310439B2 (en) 2012-09-25 2016-04-12 Emerson Climate Technologies, Inc. Compressor having a control and diagnostic module
WO2014144446A1 (en) 2013-03-15 2014-09-18 Emerson Electric Co. Hvac system remote monitoring and diagnosis
US9551504B2 (en) 2013-03-15 2017-01-24 Emerson Electric Co. HVAC system remote monitoring and diagnosis
US9803902B2 (en) 2013-03-15 2017-10-31 Emerson Climate Technologies, Inc. System for refrigerant charge verification using two condenser coil temperatures
AU2014248049B2 (en) 2013-04-05 2018-06-07 Emerson Climate Technologies, Inc. Heat-pump system with refrigerant charge diagnostics
JP6203126B2 (en) * 2014-06-04 2017-09-27 三菱電機株式会社 Hermetic compressor drive
KR20160097701A (en) * 2015-02-09 2016-08-18 엘지전자 주식회사 Air-conditioner
CN106288404B (en) * 2015-05-19 2019-05-31 Tcl空调器(中山)有限公司 Hot water machine method for heating and controlling and device
EP3367020B1 (en) * 2015-10-21 2019-10-23 Mitsubishi Electric Corporation Air conditioner
CN105650328B (en) * 2016-01-27 2018-11-02 珠海格力电器股份有限公司 A kind of drive signal anti-collision protection device, air-conditioning system and control method
CN105890247B (en) * 2016-04-08 2018-08-17 广东美的制冷设备有限公司 The control method and device of air conditioner and its compressor
KR20190023609A (en) * 2017-08-29 2019-03-08 엘지전자 주식회사 Circuit for blocking operation of compressor
KR101979454B1 (en) * 2017-11-13 2019-05-16 엘지전자 주식회사 Circuit for blocking operation of compressor
WO2019186648A1 (en) * 2018-03-26 2019-10-03 三菱電機株式会社 Air conditioner
WO2021038735A1 (en) * 2019-08-28 2021-03-04 三菱電機株式会社 Air-conditioning apparatus
CN112594884B (en) * 2020-12-10 2022-02-18 珠海格力电器股份有限公司 Air conditioning unit and condenser fan control method and device thereof and storage medium
CN114857739A (en) * 2022-03-11 2022-08-05 青岛海尔空调器有限总公司 Method and device for identifying air conditioner fault component, air conditioner and storage medium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660718A (en) * 1970-06-08 1972-05-02 Honeywell Inc Automatically resetting motor protection circuit responsive to overcurrent and overtemperature
US3721866A (en) * 1971-08-23 1973-03-20 Robertshaw Controls Co Electrical time lock-out system
US4028736A (en) * 1975-12-19 1977-06-07 Robertshaw Controls Company Motor protection circuit unit
JPS6183832A (en) * 1984-09-28 1986-04-28 Takasago Thermal Eng Co Ltd Failure diagnosing method for air conditioner
JPH0719613A (en) * 1993-07-05 1995-01-20 Toshiba Corp Air conditioner
EP0645589A1 (en) * 1992-06-17 1995-03-29 Daikin Industries, Limited Operation control apparatus for air-conditioner
JPH0914805A (en) * 1995-06-29 1997-01-17 Sanyo Electric Co Ltd Protection device of air conditioner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11270362A (en) 1998-03-23 1999-10-05 Denso Corp Throttle control device of internal combustion engine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660718A (en) * 1970-06-08 1972-05-02 Honeywell Inc Automatically resetting motor protection circuit responsive to overcurrent and overtemperature
US3721866A (en) * 1971-08-23 1973-03-20 Robertshaw Controls Co Electrical time lock-out system
US4028736A (en) * 1975-12-19 1977-06-07 Robertshaw Controls Company Motor protection circuit unit
JPS6183832A (en) * 1984-09-28 1986-04-28 Takasago Thermal Eng Co Ltd Failure diagnosing method for air conditioner
EP0645589A1 (en) * 1992-06-17 1995-03-29 Daikin Industries, Limited Operation control apparatus for air-conditioner
JPH0719613A (en) * 1993-07-05 1995-01-20 Toshiba Corp Air conditioner
JPH0914805A (en) * 1995-06-29 1997-01-17 Sanyo Electric Co Ltd Protection device of air conditioner

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 257 (M - 513) 3 September 1986 (1986-09-03) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05 30 May 1997 (1997-05-30) *

Also Published As

Publication number Publication date
CN1292479A (en) 2001-04-25
EP1087184A2 (en) 2001-03-28
EP1087184B1 (en) 2005-05-04
CN1135337C (en) 2004-01-21
ES2241555T3 (en) 2005-11-01
JP2001091022A (en) 2001-04-06
JP3703346B2 (en) 2005-10-05

Similar Documents

Publication Publication Date Title
EP1087184A3 (en) Air conditioner
EP1179442A3 (en) Air conditioning apparatus for vehicle and its control method
EP1221392A3 (en) Air-conditioning system for vehicle and its control method
EP1066997A3 (en) Air conditioning apparatus and control procedure for variable displacement compressor
EP1074800A3 (en) Control valve and method for controlling an air-conditioning system
EP1202005A3 (en) Outdoor heat exchanger unit, outdoor unit, and gas heat pump type air conditioner
MY116039A (en) Compact air conditioner
EP1083390A3 (en) Air conditioner having dehumidifying and ventilating functions
EP1336518A3 (en) Cooling of electronics in an electrically driven refrigeration system
EP1857758A3 (en) Cooling device and controlling method thereof for reefer container
HK1082233A1 (en) Condensate pump for rooftop air conditioning unit
EP1020693A3 (en) Air conditioning systems
EP0731325A3 (en) Refrigerating apparatus, air conditioner using the same and method for driving the air conditioner
EP1077353A3 (en) Switch valve for hot gas circuit of refrigerant circuit
EP1052124A3 (en) Method for controlling a refrigerating cycle and a refrigerating cycle
EP0747248A3 (en) Air conditioning apparatus
EP1134520A3 (en) Method for protection compressors used in chillers and/or heat pumps
EP1004834A3 (en) Air conditioning systems
EP0992745A3 (en) Air conditioning systems
EP0324462A3 (en) Air conditioning device
EP0992747A3 (en) Air conditioning systems
EP1808317B1 (en) Method for controlling compressor clutch
KR0140062B1 (en) Overload control method of air conditioner
KR200211226Y1 (en) Radiator fan and condenser fan control system of car
JPH01277161A (en) Airconditioner

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20021021

AKX Designation fees paid

Designated state(s): ES GB

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17Q First examination report despatched

Effective date: 20040401

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): ES GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: GB

Ref legal event code: 727

REG Reference to a national code

Ref country code: GB

Ref legal event code: 727A

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2241555

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: GB

Ref legal event code: 727H

26N No opposition filed

Effective date: 20060207

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20070417

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190912

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20191002

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20200912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20200912

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20200914