EP4235046A4 - AIR CONDITIONER - Google Patents

AIR CONDITIONER Download PDF

Info

Publication number: EP4235046A4
Authority: EP; European Patent Office
Prior art keywords: air conditioner; conditioner; air
Prior art date: 2020-10-23
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

EP21882832.5A

Other languages

German (de)

French (fr)

Other versions

EP4235046A1 (en

Inventor

Hiroshi Sasaki

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.)

Fujitsu General Ltd

Original Assignee

Fujitsu General 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.)

2020-10-23

Filing date

2021-10-19

Publication date

2024-09-18

2021-10-19 Application filed by Fujitsu General Ltd filed Critical Fujitsu General Ltd

2023-08-30 Publication of EP4235046A1 publication Critical patent/EP4235046A1/en

2024-09-18 Publication of EP4235046A4 publication Critical patent/EP4235046A4/en

Status Pending legal-status Critical Current

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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- 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
- 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
- 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
- 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
- F24F2140/20—Heat-exchange fluid temperature
- 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
- F25B2500/00—Problems to be solved
- F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
- F25B2500/222—Detecting refrigerant leaks
- 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
- F25B2500/00—Problems to be solved
- F25B2500/24—Low amount of refrigerant in the system
- 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
- F25B2600/05—Refrigerant levels
- 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
- F25B2700/17—Speeds
- F25B2700/171—Speeds of the compressor
- 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
- F25B2700/17—Speeds
- F25B2700/172—Speeds of the condenser fan
- 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
- F25B2700/17—Speeds
- F25B2700/173—Speeds of the evaporator fan
- 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
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Combustion & Propulsion (AREA)
Thermal Sciences (AREA)
Fuzzy Systems (AREA)
Mathematical Physics (AREA)
Signal Processing (AREA)
Air Conditioning Control Device (AREA)
Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

EP21882832.5A 2020-10-23 2021-10-19 AIR CONDITIONER Pending EP4235046A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2020178414A JP7147825B2 (en)	2020-10-23	2020-10-23	air conditioner
PCT/JP2021/038644 WO2022085691A1 (en)	2020-10-23	2021-10-19	Air conditioner

Publications (2)

Publication Number	Publication Date
EP4235046A1 EP4235046A1 (en)	2023-08-30
EP4235046A4 true EP4235046A4 (en)	2024-09-18

Family

ID=81290549

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP21882832.5A Pending EP4235046A4 (en)	2020-10-23	2021-10-19	AIR CONDITIONER

Country Status (6)

Country	Link
US (1)	US20240027086A1 (en)
EP (1)	EP4235046A4 (en)
JP (3)	JP7147825B2 (en)
CN (1)	CN116348711A (en)
AU (1)	AU2021365042B2 (en)
WO (1)	WO2022085691A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP7534664B2 (en)	2022-12-26	2024-08-15	ダイキン工業株式会社	Refrigerant leakage detection method and refrigeration cycle device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2000130897A (en) *	1998-10-27	2000-05-12	Hitachi Ltd	Apparatus and method for judging amount of charged refrigerant
JP2009127950A (en) *	2007-11-26	2009-06-11	Denso Corp	Refrigerating cycle apparatus
JP2012132601A (en) *	2010-12-20	2012-07-12	Samsung Yokohama Research Institute Co Ltd	Refrigerant amount detecting apparatus
JP2012229893A (en) *	2011-04-27	2012-11-22	Mitsubishi Electric Corp	Refrigerating air conditioning device
US9222711B2 (en) *	2010-03-12	2015-12-29	Mitsubishi Electric Corporation	Refrigerating and air-conditioning apparatus
EP1970651B1 (en) *	2006-09-21	2019-07-31	Mitsubishi Electric Corporation	Refrigerating/air conditioning system having refrigerant leakage detecting function, refrigerator/air conditioner and method for detecting leakage of refrigerant

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3852472B2 (en)	2004-06-11	2006-11-29	ダイキン工業株式会社	Air conditioner
JP6791024B2 (en)	2017-06-08	2020-11-25	株式会社デンソー	Refrigeration cycle equipment
JP6777180B2 (en)	2019-03-19	2020-10-28	ダイキン工業株式会社	Refrigerant quantity estimates, methods, and programs
JP6911883B2 (en)	2019-03-29	2021-07-28	ダイキン工業株式会社	Performance deterioration diagnosis system for refrigeration cycle equipment

2020
- 2020-10-23 JP JP2020178414A patent/JP7147825B2/en active Active
2021
- 2021-10-19 WO PCT/JP2021/038644 patent/WO2022085691A1/en active Application Filing
- 2021-10-19 CN CN202180068295.4A patent/CN116348711A/en active Pending
- 2021-10-19 AU AU2021365042A patent/AU2021365042B2/en active Active
- 2021-10-19 EP EP21882832.5A patent/EP4235046A4/en active Pending
- 2021-10-19 US US18/032,385 patent/US20240027086A1/en active Pending
2022
- 2022-09-21 JP JP2022150032A patent/JP7567882B2/en active Active
- 2022-09-21 JP JP2022150031A patent/JP7567881B2/en active Active

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2000130897A (en) *	1998-10-27	2000-05-12	Hitachi Ltd	Apparatus and method for judging amount of charged refrigerant
EP1970651B1 (en) *	2006-09-21	2019-07-31	Mitsubishi Electric Corporation	Refrigerating/air conditioning system having refrigerant leakage detecting function, refrigerator/air conditioner and method for detecting leakage of refrigerant
JP2009127950A (en) *	2007-11-26	2009-06-11	Denso Corp	Refrigerating cycle apparatus
US9222711B2 (en) *	2010-03-12	2015-12-29	Mitsubishi Electric Corporation	Refrigerating and air-conditioning apparatus
JP2012132601A (en) *	2010-12-20	2012-07-12	Samsung Yokohama Research Institute Co Ltd	Refrigerant amount detecting apparatus
JP2012229893A (en) *	2011-04-27	2012-11-22	Mitsubishi Electric Corp	Refrigerating air conditioning device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022085691A1 *

Also Published As

Publication number	Publication date
JP7567881B2 (en)	2024-10-16
JP2022181215A (en)	2022-12-07
JP7147825B2 (en)	2022-10-05
EP4235046A1 (en)	2023-08-30
JP2022171923A (en)	2022-11-11
CN116348711A (en)	2023-06-27
AU2021365042B2 (en)	2024-09-19
AU2021365042A9 (en)	2025-01-16
US20240027086A1 (en)	2024-01-25
JP2022069305A (en)	2022-05-11
AU2021365042A1 (en)	2023-06-01
WO2022085691A1 (en)	2022-04-28
JP7567882B2 (en)	2024-10-16

Publication	Publication Date	Title
JP1709599S (en)	2022-03-11	Air conditioner
EP4095448A4 (en)	2024-02-21	AIR CONDITIONER
EP4242532A4 (en)	2024-08-07	AIR CONDITIONER
EP4235046A4 (en)	2024-09-18	AIR CONDITIONER
EP4145057A4 (en)	2023-12-27	AIR CONDITIONER
EP4215843A4 (en)	2024-04-24	AIR CONDITIONER
EP4191164A4 (en)	2023-10-11	AIR CONDITIONER
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JP1722342S (en)	2023-08-21	air conditioner
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JP1713317S (en)	2022-04-22	Air conditioner
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JP1714019S (en)	2022-05-02	Air conditioner
JP1713315S (en)	2022-04-22	Air conditioner
JP1713314S (en)	2022-04-22	Air conditioner
JP1713313S (en)	2022-04-22	Air conditioner
JP1714015S (en)	2022-05-02	Air conditioner

Legal Events

Date	Code	Title	Description
2022-04-30	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2023-07-28	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
2023-07-28	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2023-08-30	17P	Request for examination filed	Effective date: 20230417
2023-08-30	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
2024-02-07	DAV	Request for validation of the european patent (deleted)
2024-02-07	DAX	Request for extension of the european patent (deleted)
2024-09-18	A4	Supplementary search report drawn up and despatched	Effective date: 20240816
2024-09-18	RIC1	Information provided on ipc code assigned before grant	Ipc: F25B 29/00 20060101ALI20240809BHEP Ipc: F25B 13/00 20060101ALI20240809BHEP Ipc: F24F 140/20 20180101ALI20240809BHEP Ipc: F24F 11/62 20180101ALI20240809BHEP Ipc: F25B 49/02 20060101ALI20240809BHEP Ipc: F24F 11/49 20180101AFI20240809BHEP