EP3961119A1 - Climatiseur - Google Patents

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Publication number: EP3961119A1
Authority: EP; European Patent Office
Prior art keywords: refrigerant; sensor; air conditioner; heat exchanger; refrigeration oil
Prior art date: 2018-05-21
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

EP21203214.8A

Other languages

German (de)

English (en)

Other versions

EP3961119B1 (fr

Inventor

Hideaki Maeyama

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.)

2018-05-21

Filing date

2018-05-21

Publication date

2022-03-02

2018-05-21 Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp

2018-05-21 Priority to EP21203214.8A priority Critical patent/EP3961119B1/fr

2018-05-21 Priority to ES21203214T priority patent/ES2973742T3/es

2022-03-02 Publication of EP3961119A1 publication Critical patent/EP3961119A1/fr

2024-01-31 Application granted granted Critical

2024-01-31 Publication of EP3961119B1 publication Critical patent/EP3961119B1/fr

Status Active legal-status Critical Current

2038-05-21 Anticipated expiration legal-status Critical

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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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/68—Containers, packaging elements or packages, specially adapted for particular articles or materials for machines, engines or vehicles in assembled or dismantled form
- 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
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the 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
- 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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
- 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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/60—Odour
- 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
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices

Definitions

the present invention relates to an air conditioner having a function of detecting a leak of flammable refrigerant.
a conventionally known air conditioner has a function of detecting a leak of flammable refrigerant.
PTL 1 discloses an air conditioner including refrigerant detection means for detecting a concentration of flammable refrigerant in a room.
an air sending fan is operated at a preset airflow rate. This can restrain the formation of a flammable concentration region in the room if refrigerant leaks.
Refrigeration oil stored in a compressor is normally discharged from the compressor together with refrigerant to circulate in an air conditioner. If the refrigerant leaks, thus, the refrigeration oil also leaks in many cases. PTL 1, however, does not reflect a situation in which the refrigeration oil would leak with the refrigerant.
the present invention has been made to solve the above problem and has an object to improve the safety of an air conditioner.
flammable refrigerant circulates in order of a compressor, a first heat exchanger, an expansion valve, and a second heat exchanger.
the compressor stores refrigeration oil and discharges the refrigeration oil with the refrigerant.
the refrigeration oil circulates with the refrigerant in order of the compressor, the first heat exchanger, the expansion valve, and the second heat exchanger.
the first heat exchanger is located in a first space.
the second heat exchanger is located in a second space.
the air conditioner includes a first sensor, a second sensor, and a controller.
the first sensor detects the refrigerant in the first space.
the second sensor detects an odor of the refrigeration oil in the first space.
the controller detects a leak of the refrigerant using a first detection signal from the first sensor and a second detection signal from the second sensor.
flammable refrigerant circulates in order of a compressor, a first heat exchanger, an expansion valve, and a second heat exchanger.
the compressor stores refrigeration oil and discharges the refrigeration oil with the refrigerant.
the refrigeration oil circulates with the refrigerant in order of the compressor, the first heat exchanger, the expansion valve, and the second heat exchanger.
the first heat exchanger is located in a first space.
the second heat exchanger is located in a second space.
the air conditioner includes a sensor, a sample containing unit, and a controller.
the sensor detects the refrigerant in the first space.
the sample containing unit is capable of containing a sample of the refrigeration oil and discharging an odor of the sample to outside.
the controller detects a leak of the refrigerant using a detection signal from the sensor.
a packaging set for an air conditioner is a packaging set for an air conditioner in which flammable refrigerant circulates in order of a compressor, a first heat exchanger, an expansion valve, and a second heat exchanger.
the compressor stores refrigeration oil and discharges the refrigeration oil with the refrigerant.
the refrigeration oil circulates with the refrigerant in order of the compressor, the first heat exchanger, the expansion valve, and the second heat exchanger.
the first heat exchanger is located in a first space.
the second heat exchanger is located in a second space.
the air conditioner includes a sensor and a controller. The sensor detects the refrigerant in the first space.
the controller detects a leak of the refrigerant using a detection signal from the sensor.
the packaging set includes a sample of the refrigeration oil and a packaging box.
the packaging box contains the sample and at least one of the compressor, the first heat exchanger, the expansion valve, the second heat exchanger, the sensor, and the controller.
the air conditioner and the packaging set for an air conditioner according to the present invention can detect refrigerant which has leaked to the first space using an odor of the refrigeration oil, and thus, can detect a refrigerant leak in the first space with increased accuracy. This leads to improved safety of the air conditioner.
Fig. 1 is a functional block diagram showing a configuration of an air conditioner 100 according to Embodiment 1.
Fig. 2 is a schematic external view of an indoor unit 10 of air conditioner 100 of Fig. 1 .
air conditioner 100 refrigerant including flammable R290 (propane) is used.
Air conditioner 100 includes a heating mode, a cooling mode, and a defrosting mode as operation modes.
air conditioner 100 includes indoor unit 10 and an outdoor unit 11. Both of indoor unit 10 and outdoor unit 11 are supplied with electric power from a main power supply Ps1 (first power supply).
Ps1 first power supply
Indoor unit 10 is located indoors (in a first space). Indoor unit 10 includes an indoor heat exchanger 1 (first heat exchanger), an indoor fan 2, a refrigerant sensor s1 (first sensor), and an odor sensor s2 (second sensor). Outdoor unit 11 is located outdoors (in a second space). Outdoor unit 11 includes a compressor 3, a four-way valve 4, an expansion valve 5, an outdoor heat exchanger 6 (second heat exchanger), an outdoor fan 7, and a controller 8. Compressor 3 stores refrigeration oil for lubrication of a compression mechanism. The refrigeration oil is a refrigeration oil with a unique odor and includes, for example, PAG (PolyAlkylene Glycol).
controller 8 controls four-way valve 4 to form a flow path such that the refrigerant circulates in order of compressor 3, indoor heat exchanger 1, expansion valve 5, and outdoor heat exchanger 6.
indoor heat exchanger 1 functions as a condenser
outdoor heat exchanger 6 functions as an evaporator.
controller 8 controls four-way valve 4 to form a flow path such that the refrigerant circulates in order of compressor 3, outdoor heat exchanger 6, expansion valve 5, and indoor heat exchanger 1.
indoor heat exchanger 1 functions as an evaporator
outdoor heat exchanger 6 functions as a condenser.
Controller 8 controls a drive frequency of compressor 3 to control an amount of the refrigerant to be discharged per unit time by compressor 3. Controller 8 controls a degree of opening of expansion vale 5. Controller 8 controls an air delivery rate per unit time of each of indoor fan 2 and outdoor fan 7.
refrigerant sensor s1 and odor sensor s2 are located leeward of indoor heat exchanger 1 in a direction in which indoor fan 2 blows air.
Refrigerant sensor s1 outputs a detection signal (first detection signal) indicative of a concentration of the refrigerant to controller 8.
Odor sensor s2 outputs a detection signal (second detection signal) indicative of an odor of the refrigeration oil to controller 8.
the refrigeration oil stored in compressor 3 is normally discharged from compressor 3 with the refrigerant and circulates through air conditioner 100. Accordingly, if the refrigerant leaks, the refrigeration oil also leaks in many cases.
Embodiment 1 thus, a refrigerant leak in a room is detected using a concentration of the refrigerant and an odor of the refrigeration oil.
an odor of the refrigeration oil is used in addition to a concentration of the refrigerant, a refrigerant leak can be detected with a higher degree of accuracy than when a refrigerant leak is detected using only a concentration of the refrigerant, leading to improved safety of the air conditioner.
Fig. 3 is a flowchart showing a flow of a refrigerant leak detection process performed by controller 8. The process shown in Fig. 3 is invoked on a regular or irregular basis by a main routine (not shown) that controls an operation of air conditioner 100. A step will also be referred to as S below.
a detection level L1 refers to a level of a detection signal of refrigerant sensor s1
a detection level L2 refers to a level of a detection signal of odor sensor s2.
controller 8 determines whether detection level L1 of a concentration of the refrigerant in the room is greater than a threshold A1 (first threshold) at S11.
controller 8 performs a safety ensuring process at S14 and then returns the process to the main routine.
the safety ensuring process for example, the following are performed: a process of making the distribution of refrigerant in the room uniform by agitating indoor air by indoor fan 2 to thereby dilute the concentration of the refrigerant, generation of an alarm sound, flashing of a lamp, and display of a message.
controller 8 determines whether detection level L2 of the refrigeration oil in the room is greater than a threshold B1 (second threshold) at S12. When detection level L2 of the refrigeration oil in the room is greater than threshold B1 (YES at S12), controller 8 performs the safety ensuring process at S14 and then returns the process to the main routine. When detection level L2 of the refrigeration oil in the room is smaller than or equal to threshold B1 (NO at S12), controller 8 returns the process to the main routine.
determination of a refrigerant leak using a concentration of the refrigerant (S11) and determination of a refrigerant leak using an odor of the refrigeration oil (S12) are performed at different steps.
the determination of a refrigerant leak may be performed using a concentration of the refrigerant and an odor of the refrigeration oil at the same step, and for example, the process shown in Fig. 4 may be performed in place of the process shown in Fig. 3 .
Fig. 3 determination of a refrigerant leak using a concentration of the refrigerant (S11) and determination of a refrigerant leak using an odor of the refrigeration oil (S12) are performed at different steps.
the determination of a refrigerant leak may be performed using a concentration of the refrigerant and an odor of the refrigeration oil at the same step, and for example, the process shown in Fig. 4 may be performed in place of the process shown in Fig. 3 .
the determination of a refrigerant leak (S13) using a concentration of the refrigerant and an odor of the refrigeration oil is performed when detection level L1 is smaller than or equal to threshold A1 in the determination of a refrigerant leak using a concentration of the refrigerant (NO at S11) and when detection level L2 is smaller than or equal to threshold B1 in the determination of a refrigerant leak using an odor of the refrigeration oil (NO at S12).
detection level L1 is smaller than or equal to threshold A1 and detection level L2 is smaller than or equal to threshold B1, and accordingly, the condition for determining a refrigerant leak needs to be set at S13 in the range in which detection level L1 is smaller than or equal to threshold A1 and detection level L2 is smaller than or equal to threshold B1.
a threshold A2 third threshold
a threshold B2 fourth threshold
controller 8 determines at S13 whether detection level L1 is greater than threshold A2 and whether detection level L2 is greater than threshold B2.
controller 8 performs the safety ensuring process at S14 and returns the process to the main routine.
detection level L1 is smaller than or equal to threshold A2 or detection level L2 is smaller than or equal to threshold B2 (NO at S13)
controller 8 returns the process to the main routine.
the condition for determining a refrigerant leak is the condition that detection level L1 of the concentration of the refrigerant or detection level L2 of the refrigeration oil is greater than a threshold.
the condition for determining a refrigerant leak may be determined based on whether a point specified by detection level L1 and detection level L2 is included in a refrigerant leak region in which a refrigerant leak should be determined on a plane of coordinates indicating the relation between detection level L1 and detection level L2.
Fig. 5 is a plane of coordinates indicating the relation between detection level L1 and detection level L2, where the X-axis indicates detection level L1 of a concentration of the refrigerant and the Y-axis indicates detection level L2 of the refrigeration oil.
the refrigerant leak region shown in Fig. 5 is represented by Expression (1) below.
Detection level L1 and detection level L2 that satisfy Expression (1) are included in the refrigerant leak region.
a detection level L1 and a detection level L2 of point P3 on a boundary line (a straight line connecting a point P1 (A1, 0) and a point P2 (0, B1)) between the refrigerant leak region and a refrigerant no-leak region (a region that does not satisfy Expression (1)).
Fig. 6 is a flowchart showing a flow of the process of determining a refrigerant leak using Expression (1).
the flowchart shown in Fig. 6 is a flowchart obtained by replacing S11 and S12 of Fig. 3 with S10.
controller 8 determines whether detection level L1 and detection level L2 satisfy Expression (1). When detection level L1 and detection level L2 satisfy Expression (1) (YES at S10), controller 8 performs the safety ensuring process at S14 and returns the process to the main routine. When detection level L1 and detection level L2 do not satisfy Expression (1) (No at S10), controller 8 returns the process to the main routine.
the air conditioners according to Embodiment 1 and Modifications 1 and 2 can have improved safety.
Embodiment 1 has described the case where the refrigerant sensor and the odor sensor are supplied with electric power from a power supply of an air conditioner.
Embodiment 2 will describe a case where at least one of the refrigerant sensor and the odor sensor is supplied with electric power from a power supply different from the power supply of the air conditioner.
Such a configuration can detect a refrigerant leak because at least one of the refrigerant sensor and the odor sensor operates even when the air conditioner is not supplied with electric power (when the air conditioning apparatus and the power supply are not connected or when a power failure occurs).
Fig. 7 is a functional block diagram showing a configuration of an air conditioner 200 according to Embodiment 2.
the configuration of air conditioner 200 is a configuration obtained by adding an auxiliary power supply Ps2 (second power supply) to the configuration of air conditioner 100 of Fig. 1 and replacing refrigerant sensor s1 and odor sensor s2 respectively with a refrigerant sensor s21 and an odor sensor s22.
the other components are similar, description of which will not be repeated.
auxiliary power supply Ps2 supplies electric power to odor sensor s22.
Auxiliary power supply Ps2 includes, for example, a battery.
Odor sensor s22 informs a refrigerant leak by, for example, an alarm sound, flashing of a lamp, or display of a message when detection level L2 exceeds threshold B1.
the sensor that is supplied with electric power from auxiliary power supply Ps2 when power supply from main power supply Ps1 is stopped (e.g., when a cord of air conditioner 200 is pulled out of main power supply Ps1 or when a power failure occurs) may be refrigerant sensor s21.
refrigerant sensor s21 informs a refrigerant leak by, for example, an alarm sound, flashing of a lamp, or display of a message.
At least one of refrigerant sensor s1 and odor sensor s22 operates even when power supply from main power supply Ps1 is stopped, and accordingly, the operating sensor can detect a refrigerant leak.
the sensor that is supplied with electric power from auxiliary power supply Ps2 receives electric power from main power supply Ps1 and does not consume the electric power of auxiliary power supply Ps2 during normal operation, and receives electric power from auxiliary power supply Ps2 in case of emergency.
both of refrigerant sensor s1 and odor sensor s2 are supplied with electric power from auxiliary power supply Ps2 such that both of refrigerant sensor s1 and odor sensor s2 operate also when power supply from main power supply Ps1 is stopped.
the air conditioner according to Embodiment 2 can detect a refrigerant leak even when no electric power is supplied to the air conditioner, and accordingly, can have more improved safety than in Embodiment 1.
Embodiments 1 and 2 have described the case where an odor of the refrigeration oil is detected by a sensor.
Embodiments 3 and 4 will describe a configuration that causes a user to recognize an odor of the refrigeration oil, so that the user himself/herself can become aware of a leak of the refrigeration oil into the room.
R290 included in the refrigerant used in the air conditioning apparatus according to Embodiment 1 is almost odorless. Also, the refrigerant that circulates in the air conditioning apparatus is required to be chemically stable, and accordingly, an odorant is not normally added to the refrigerant. This makes it difficult for the user to perceive an odor of the refrigerant which has leaked into the room in many cases.
a refrigeration oil for example, a PAG oil has a unique odor, and accordingly, the user can become aware of that an unfamiliar odor is included in the room in case of a leak of the refrigeration oil from the air conditioner with the refrigerant. However, the user frequently does not recognize that such an odor is the odor of the refrigeration oil.
Embodiments 3 and 4 thus, a sample of the refrigeration oil used for lubrication of a compressor of an air conditioner is used to cause the user to recognize an odor of the refrigeration oil in advance.
the user can become aware of a leak of the refrigeration oil into the room.
the user himself/herself can become aware of an odor of the refrigeration oil in the room in addition to the determination of a refrigerant leak using a concentration of the refrigerant by the air conditioning apparatus, leading to more improved safety of the air conditioning apparatus than when the user does not know an odor of the refrigeration oil.
the user himself/herself can become aware of a refrigerant leak even when no electric power is supplied to the air conditioning apparatus. Further, manufacturing cost can be lower in Embodiments 3 and 4, which need no odor sensor, than in Embodiments 1 and 2.
Embodiment 3 will describe an air conditioner including a sample containing unit for refrigeration oil in the indoor unit.
Embodiment 4 will describe a packaging set for an air conditioner in which a sample container for refrigeration oil separate from the air conditioner is packed with the air conditioner.
Fig. 8 is a functional block diagram showing a configuration of an air conditioner 300 according to Embodiment 3.
the configuration of air conditioner 300 is a configuration obtained by replacing indoor unit 10 and controller 8 of air conditioner 100 of Fig. 1 respectively with an indoor unit 30 and a controller 38.
the configuration of indoor unit 30 is a configuration obtained by removing odor sensor s2 from the configuration of indoor unit 10 and detachably attaching a sample container 31 (sample containing unit) as shown in Fig. 9 .
Controller 38 determines a refrigerant leak using a concentration of the refrigerant upon receipt of a detection signal from refrigerant sensor s1 but does not determine a refrigerant leak using an odor of the refrigeration oil.
detection level L1 of the concentration of refrigerant is greater than threshold A1, controller 38 performs the safety ensuring process.
the other components are similar, description of which will not be repeated.
Fig. 10 is a schematic external view of sample container 31 of Fig. 9 .
sample container 31 includes a main body 311 made of resin and a cap 312 made of resin.
Main body 311 contains a sponge Spg impregnated with a sample of the refrigeration oil which is used for lubrication of compressor 3 of Fig. 8 .
cap 312 is attached to main body 311 ( Fig. 10(a) )
the odor of the refrigeration oil is sealed within sample container 31 and can hardly leak out of sample container 31.
Sample container 31 is attached to air conditioner 300 in the state shown in Fig. 10(a) .
Sample container 31 can release an odor of a sample of the refrigeration oil to outside with cap 312 detached from main body 311 ( Fig. 10(b) ).
the user detaches sample container 31 from air conditioner 300 and removes cap 312 from main body 311 as shown in Fig. 10(b) , and then checks an odor of the refrigeration oil.
the air conditioner according to Embodiment 3 can have improved safety and be manufactured at a lower cost than in Embodiments 1 and 2.
FIG. 11 shows how an indoor unit 40 is packed by a packaging set 400 for an air conditioner according to Embodiment 4.
the appearance of indoor unit 40 is similar to that of indoor unit 10 shown in Fig. 2 .
indoor unit 40 includes no odor sensor, similarly to indoor unit 30 shown in Fig. 8 .
indoor unit 40 is covered with buffers 42 and 43 at its opposite ends and is contained in a packaging box 41. As packaging box 41 is slid in the longitudinal direction of indoor unit 40, packaging set 400 is unpacked.
Fig. 12 shows packaging set 400 of Fig. 11 which is unpacked.
indoor unit 40 has on its back surface a remote control Rm, and an instruction manual and sample container 31 for the refrigeration oil that are wrapped together.
Sample container 31 is similar to that shown in Fig. 10 and contains a sponge impregnated with the refrigeration oil. The user can check an odor of the refrigeration oil with sample container 31.
the packaging set for an air conditioner according to Embodiment 4 can provide improved safety to the air conditioner and also reduce a manufacturing cost of the air conditioning apparatus more than in Embodiments 1 and 2.

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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)
Signal Processing (AREA)
Fuzzy Systems (AREA)
Mathematical Physics (AREA)
Air Conditioning Control Device (AREA)
Packaging Of Machine Parts And Wound Products (AREA)

EP21203214.8A 2018-05-21 2018-05-21 Climatiseur Active EP3961119B1 (fr)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
EP21203214.8A EP3961119B1 (fr)	2018-05-21	2018-05-21	Climatiseur
ES21203214T ES2973742T3 (es)	2018-05-21	2018-05-21	Acondicionador de aire

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
EP18919943.3A EP3798527A4 (fr)	2018-05-21	2018-05-21	Ensemble de climatiseur et d'emballage pour climatiseur
EP21203214.8A EP3961119B1 (fr)	2018-05-21	2018-05-21	Climatiseur
PCT/JP2018/019456 WO2019224865A1 (fr)	2018-05-21	2018-05-21	Ensemble de climatiseur et d'emballage pour climatiseur

Related Parent Applications (1)

Application Number	Title	Priority Date	Filing Date
EP18919943.3A Division EP3798527A4 (fr)	2018-05-21	2018-05-21	Ensemble de climatiseur et d'emballage pour climatiseur

Publications (2)

Publication Number	Publication Date
EP3961119A1 true EP3961119A1 (fr)	2022-03-02
EP3961119B1 EP3961119B1 (fr)	2024-01-31

Family

ID=68616642

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
EP21203214.8A Active EP3961119B1 (fr)	2018-05-21	2018-05-21	Climatiseur
EP18919943.3A Withdrawn EP3798527A4 (fr)	2018-05-21	2018-05-21	Ensemble de climatiseur et d'emballage pour climatiseur

Family Applications After (1)

Application Number	Title	Priority Date	Filing Date
EP18919943.3A Withdrawn EP3798527A4 (fr)	2018-05-21	2018-05-21	Ensemble de climatiseur et d'emballage pour climatiseur

Country Status (5)

Country	Link
EP (2)	EP3961119B1 (fr)
JP (1)	JP7009624B2 (fr)
CN (2)	CN114777285B (fr)
ES (1)	ES2973742T3 (fr)
WO (1)	WO2019224865A1 (fr)

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US11971183B2 (en)	2019-09-05	2024-04-30	Trane International Inc.	Systems and methods for refrigerant leak detection in a climate control system
US12117191B2 (en)	2022-06-24	2024-10-15	Trane International Inc.	Climate control system with improved leak detector
US12487008B2 (en)	2022-01-14	2025-12-02	Trane International Inc.	Method of commissioning an HVAC system

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EP3961119B1 (fr) *	2018-05-21	2024-01-31	Mitsubishi Electric Corporation	Climatiseur
JP7008658B2 (ja) *	2019-03-19	2022-01-25	ダイキン工業株式会社	冷媒サイクルシステム
US11813926B2 (en)	2020-08-20	2023-11-14	Denso International America, Inc.	Binding agent and olfaction sensor
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US11760170B2 (en)	2020-08-20	2023-09-19	Denso International America, Inc.	Olfaction sensor preservation systems and methods
US11881093B2 (en)	2020-08-20	2024-01-23	Denso International America, Inc.	Systems and methods for identifying smoking in vehicles
US12251991B2 (en)	2020-08-20	2025-03-18	Denso International America, Inc.	Humidity control for olfaction sensors
US12269315B2 (en)	2020-08-20	2025-04-08	Denso International America, Inc.	Systems and methods for measuring and managing odor brought into rental vehicles
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US11636870B2 (en)	2020-08-20	2023-04-25	Denso International America, Inc.	Smoking cessation systems and methods
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2018
- 2018-05-21 EP EP21203214.8A patent/EP3961119B1/fr active Active
- 2018-05-21 ES ES21203214T patent/ES2973742T3/es active Active
- 2018-05-21 WO PCT/JP2018/019456 patent/WO2019224865A1/fr not_active Ceased
- 2018-05-21 CN CN202210521435.5A patent/CN114777285B/zh active Active
- 2018-05-21 EP EP18919943.3A patent/EP3798527A4/fr not_active Withdrawn
- 2018-05-21 JP JP2020520865A patent/JP7009624B2/ja active Active
- 2018-05-21 CN CN201880093339.7A patent/CN112154292B/zh active Active

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EP2213965A1 (fr) *	2007-10-23	2010-08-04	Daikin Industries, Ltd.	Détecteur de fluide, dispositif de détection de fuite de fluide frigorigène, dispositif de réfrigération et procédé de détection de fuite de fluide frigorigène
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US11971183B2 (en)	2019-09-05	2024-04-30	Trane International Inc.	Systems and methods for refrigerant leak detection in a climate control system
US12487008B2 (en)	2022-01-14	2025-12-02	Trane International Inc.	Method of commissioning an HVAC system
US12117191B2 (en)	2022-06-24	2024-10-15	Trane International Inc.	Climate control system with improved leak detector

Also Published As

Publication number	Publication date
CN114777285A (zh)	2022-07-22
CN112154292A (zh)	2020-12-29
JP7009624B2 (ja)	2022-02-10
EP3798527A4 (fr)	2021-05-26
WO2019224865A1 (fr)	2019-11-28
EP3798527A1 (fr)	2021-03-31
CN112154292B (zh)	2022-06-21
ES2973742T3 (es)	2024-06-24
CN114777285B (zh)	2024-10-29
JPWO2019224865A1 (ja)	2021-03-18
EP3961119B1 (fr)	2024-01-31

Publication	Publication Date	Title
EP3961119B1 (fr)	2024-01-31	Climatiseur
US11268718B2 (en)	2022-03-08	Refrigeration apparatus
JP7256248B2 (ja)	2023-04-11	空気調和機の梱包セット
EP3604982B1 (fr)	2024-08-21	Unité intérieure de dispositif de réfrigération
EP3193105B1 (fr)	2024-03-20	Système de réfrigération avec surchauffe, sous-refroidissement et commande de niveau de charge de fluide frigorigène
CN100549573C (zh)	2009-10-14	空气调节器及其制冷剂量判定方法
EP3287720B1 (fr)	2022-01-12	Dispositif de réfrigération
US11976830B2 (en)	2024-05-07	Air-conditioning apparatus
JPH07159010A (ja)	1995-06-20	空気調和機
CN206420200U (zh)	2017-08-18	制冷循环装置
US20180106492A1 (en)	2018-04-19	Hvac/r system with auxiliary power source and method of operating an hvac/r system
EP3640567A1 (fr)	2020-04-22	Climatiseur
JP2005241052A (ja)	2005-09-08	除湿機および除湿機の梱包箱
CN110382979A (zh)	2019-10-25	制冷剂泄漏检测装置、制冷循环装置
JP5463660B2 (ja)	2014-04-09	冷凍装置
CN113858907A (zh)	2021-12-31	用于运输气候控制回路的管理和隔离的系统和方法
EP4644805A1 (fr)	2025-11-05	Procédé de détermination de fuite de fluide frigorigène et dispositif à cycle de réfrigération
JP7576641B2 (ja)	2024-10-31	空調設備管理システムおよび空調設備管理方法
JP2025148005A (ja)	2025-10-07	冷凍装置
JPH04217762A (ja)	1992-08-07	空調装置
JP2003269806A (ja)	2003-09-25	空気調和機
JP2010133635A (ja)	2010-06-17	冷凍装置
JPH11211290A (ja)	1999-08-06	非共沸混合冷媒の充填方法

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