WO2016110998A1 - Outdoor unit and air conditioner - Google Patents
Outdoor unit and air conditioner Download PDFInfo
- Publication number
- WO2016110998A1 WO2016110998A1 PCT/JP2015/050465 JP2015050465W WO2016110998A1 WO 2016110998 A1 WO2016110998 A1 WO 2016110998A1 JP 2015050465 W JP2015050465 W JP 2015050465W WO 2016110998 A1 WO2016110998 A1 WO 2016110998A1
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- WO
- WIPO (PCT)
- Prior art keywords
- refrigerant
- outdoor unit
- cover
- ring
- display cover
- Prior art date
Links
- 239000003507 refrigerant Substances 0.000 claims abstract description 155
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 239000005060 rubber Substances 0.000 claims description 13
- 239000007789 gas Substances 0.000 description 44
- 238000009434 installation Methods 0.000 description 15
- 238000004378 air conditioning Methods 0.000 description 13
- 239000007788 liquid Substances 0.000 description 12
- 238000000034 method Methods 0.000 description 7
- 239000002826 coolant Substances 0.000 description 6
- 238000001816 cooling Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- OHMHBGPWCHTMQE-UHFFFAOYSA-N 2,2-dichloro-1,1,1-trifluoroethane Chemical compound FC(F)(F)C(Cl)Cl OHMHBGPWCHTMQE-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- -1 R410A Chemical compound 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical group [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Images
Classifications
-
- 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
- F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
-
- 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
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
-
- 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
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- 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
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/006—Details for charging or discharging refrigerants; Service stations therefor characterised by charging or discharging valves
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/12—Inflammable refrigerants
Definitions
- the present invention relates to an outdoor unit of an air conditioner using a compressor-type refrigeration cycle and an air conditioner including the outdoor unit, and particularly, to improve safety and reliability during installation and service of the air conditioner.
- the present invention relates to an outdoor unit and an air conditioner.
- hydrochlorofluorocarbon (HCFC) -based R22 refrigerant hydrofluorocarbon (HFC) -based R410A refrigerant, or the like is often used in air conditioners.
- HCFC hydrochlorofluorocarbon
- HFC hydrofluorocarbon
- R32 (difluoromethane) of HFC refrigerant which is a flammable refrigerant, hydrofluoroolefin refrigerant (HFO1234yf, HFO1234ze, etc.), R32 and A mixed refrigerant with an HFO system or a natural refrigerant such as R290 (propane) or R600a (isobutane) has attracted attention.
- the HFC-based R32 refrigerant is characterized in that the global warming potential (hereinafter referred to as GWP) due to atmospheric release is very small compared to the R22 refrigerant and the R410A refrigerant.
- GWP global warming potential
- the R32 refrigerant is a flammable refrigerant
- a product with sufficient consideration for safety must be designed. For this reason, when using a flammable refrigerant such as R32 refrigerant, it is necessary to inject costs to improve safety.
- the air conditioner has a compression refrigeration cycle in which a compressor, an outdoor heat exchanger, an indoor heat exchanger, a four-way valve, a decompressor, and the like are connected by a refrigerant pipe. Therefore, in the case of an air conditioner using a flammable refrigerant such as R32 refrigerant, when the air conditioner is installed, or when the air conditioner is serviced, the refrigerant circuit is charged to the refrigerant circuit, etc. Special safety design is required.
- a “cooling device having an inlet for filling refrigerant into a refrigerant circuit and having a display unit for displaying the type of refrigerant used in the vicinity of the inlet” is disclosed.
- a “cooling device having an inlet for filling refrigerant into a refrigerant circuit and having a display unit for displaying the type of refrigerant used in the vicinity of the inlet” is disclosed.
- a “cooling device having an inlet for filling refrigerant into a refrigerant circuit and having a display unit for displaying the type of refrigerant used in the vicinity of the inlet” is disclosed. (For example, refer to Patent Document 1).
- Patent Document 1 suggests the type of refrigerant to the operator by a warning method of displaying the type of refrigerant to be used in the vicinity of the inlet (service port) filled with the refrigerant.
- the air conditioner depending on the installation location of the air conditioner, there may be installation work under adverse conditions (for example, the work location is dark and the work posture is difficult to load).
- the display content is 100% transmitted to the worker.
- the existing R22 refrigerant or the air conditioner using R410A does not perform a safety design for the flammable refrigerant. Assuming that flammable refrigerant is accidentally sealed in this existing air conditioner, if the refrigerant leaks during installation or service work, or the refrigerant circuit is lost when using the air conditioner If the refrigerant leaks, the surroundings may reach a flammable concentration.
- R22 refrigerant or R410A refrigerant is accidentally sealed in an air conditioner using a flammable refrigerant, for example, especially for refrigeration oil
- an appropriate type of refrigeration oil is selected according to the type of refrigerant. For this reason, the interior of the compressor is worn out, and cooling and heating performance are lowered, so that the reliability is remarkably lowered.
- the present invention has been made in order to solve the above-described problems, and the kind of refrigerant is given to workers (for example, workers who perform installation work, workers who perform service work, and workers who perform recycling work). It is an object of the present invention to provide an outdoor unit that is reliably recognized and has improved safety and reliability, and an air conditioner including the outdoor unit.
- the outdoor unit according to the present invention is an outdoor unit including a refrigerant pipe connection valve provided with a service port for refrigerant charging that is sealed by a hexagon nut for sealing that is removed when charging refrigerant. At least one of the type of refrigerant being used and a cautionary note is described, and a cover part covering the hexagonal columnar outer periphery of the sealing hex nut, a ring part attached to the refrigerant pipe connection valve, and bendable
- the display cover is configured and includes a connecting portion that connects the cover portion and the ring portion.
- An air conditioner according to the present invention includes the outdoor unit described above and an indoor unit connected to the outdoor unit.
- the outdoor unit According to the outdoor unit according to the present invention, it is possible to prevent the operator from erroneously enclosing the refrigerant during the refrigerant filling operation, and to improve safety.
- the air conditioner according to the present invention includes the outdoor unit described above, it is possible to suppress degradation in performance and quality.
- FIG. 1 is a schematic configuration diagram illustrating an overall configuration of an air conditioner A including an outdoor unit B according to an embodiment of the present invention. Based on FIG. 1, the structure of the air conditioning apparatus A is demonstrated.
- the air conditioner A is applied as, for example, a separate-type home air conditioner, and includes an indoor unit C and an outdoor unit B.
- the outdoor unit B installs the support base 51 in a space (for example, outdoors) different from the air-conditioning target space, is fixed to the support base 51, and supplies cold or hot heat to the indoor unit C.
- the outdoor unit B may be installed at a position where the air path during operation can be secured and the distance from the indoor unit C is not so long.
- the indoor unit C fixes the installation plate 21 to, for example, a room-side wall surface with screws 59 and the like, and is fixed so as to be hooked on the installation plate 21, and supplies conditioned air to the air-conditioning target space.
- the outdoor unit B includes an operator (for example, an operator who performs installation work of the air conditioner A, an operator who performs service work of the air conditioner A, and recycling work of the air conditioner A).
- the type of the refrigerant sealed in the air conditioner A is surely recognized.
- a liquid pipe side pipe connection joint 12 and a gas side pipe connection joint 13 are connected to the indoor unit C.
- a liquid side valve (refrigerant pipe connection valve) 8 and a gas side valve (refrigerant pipe connection valve) 9 are connected to the outdoor unit B.
- the liquid pipe side pipe connection joint 12 of the indoor unit C and the liquid side valve 8 of the outdoor unit B are coupled using an extension pipe (internal / external connection refrigerant pipe) 7 that has been subjected to flare processing.
- the gas side pipe connection joint 13 of the indoor unit C and the gas side valve 9 of the outdoor unit B are coupled using the extension pipe 7 that has been subjected to flaring.
- the element device of the indoor unit C and the element device of the outdoor unit B are connected by piping, and a refrigerant circuit is configured.
- the terminal block of the indoor unit C and the terminal block 17 of the outdoor unit B are coupled using the cable 22.
- the liquid side valve 8, the gas side valve 9, and the terminal block 17 of the outdoor unit B are arranged at positions where the work can be performed by removing the service cover 10 from the outdoor unit B. That is, the service cover 10 is detachably attached to the side surface of the outdoor unit B. As shown in FIG. 3, the liquid side valve 8 and the gas side valve 9 are fixed to the valve fixing plate 14.
- the indoor unit C has at least an indoor heat exchanger and a blower fan.
- the indoor heat exchanger functions as a condenser (heat radiator) during heating operation and as an evaporator during cooling operation.
- the blower fan is disposed near the indoor heat exchanger and supplies air to the indoor heat exchanger.
- a suction port for sucking air in the air-conditioning target space is formed on the upper surface, for example.
- the indoor unit C is formed with, for example, a front lower portion of the air outlet through which the air sucked from the suction port is passed through the indoor heat exchanger to exchange heat, and the conditioned air is blown into the air-conditioning target space.
- the outdoor unit B includes, for example, a variable speed compressor that compresses refrigerant, a four-way valve that switches the flow of refrigerant, an evaporator during heating operation, an outdoor heat exchanger that functions as a condenser (heat radiator) during cooling operation, and refrigerant At least an outdoor fan that sends air to the outdoor heat exchanger.
- the outdoor unit B includes a casing (outer wall) formed by a front plate 62 that forms part of the front and side surfaces, a top plate 65 that forms a top surface, and a side plate 66 that forms part of the side surface. Have.
- the front plate 62 has an opening 63 serving as an air passage.
- a fan guard 64 formed of a wire is attached to the opening 63.
- the side plate 66 is formed with an opening 68 through which the cable 22 is drawn out of the outdoor unit B.
- the cable 22 exposed from the opening 68 of the side plate 66 is covered with the service cover 10.
- the outdoor unit B includes a compressor, a four-way valve, a driving device for driving the outdoor fan, and a terminal block 17 for electrical connection with the indoor unit C.
- a refrigerant circuit is configured by connecting the indoor heat exchanger of the indoor unit C, the compressor of the outdoor unit B, the four-way valve, the outdoor heat exchanger, and the flow rate control device. Specifically, during the heating operation, the refrigerant flows in the order of the compressor, the four-way valve, the indoor heat exchanger, the flow control device, and the outdoor heat exchanger. During the cooling operation, the compressor, the four-way valve, and the outdoor heat exchanger The refrigerant circuit is configured such that the refrigerant flows in the order of the flow rate control device and the indoor heat exchanger. Note that only the cooling operation or the heating operation may be performed without providing the four-way valve. Further, as a substitute for the four-way valve, for example, a plurality of two-way valves or three-way valves may be used so that the refrigerant flow can be switched in the same manner.
- refrigerant As a refrigerant circulating through the refrigerant circuit of the air conditioner A, there is, for example, R32 refrigerant having flammability.
- the refrigerant used for the air conditioner A is not limited to the R32 refrigerant.
- other flammable refrigerants for example, R290 refrigerant
- natural refrigerants such as carbon dioxide (CO 2 )
- hydrocarbons such as helium, etc.
- refrigerants that do not contain chlorine such as R410A
- alternative refrigerants such as R407C and R404A May be adopted.
- the installation plate 21 for fixing the indoor unit C is fixed to the wall surface on the indoor side with screws 59 or the like.
- the indoor unit C is hooked on the installation plate 21 and fixed.
- the outdoor unit B is installed in a position (for example, a space around the house, a veranda, a roof, a garage, a garden, etc.) where the air path during operation can be secured and the distance from the indoor unit C is not so long.
- the liquid pipe side piping connection joint 12 of the indoor unit C and the liquid side valve 8 of the outdoor unit B are used by the extension pipe 7 which performed the flare process.
- the gas side pipe connection joint 13 of the indoor unit C and the gas side valve 9 of the outdoor unit B are coupled using the extension pipe 7 that has been subjected to flaring.
- the terminal block of the indoor unit C and the terminal block 17 of the outdoor unit B are coupled using the cable 22.
- each of the two extension pipes 7 is covered with a heat insulating material. Then, the two extension pipes 7 covered with the heat insulating material are collectively wrapped with the tape 61.
- FIG. 2 is a perspective view showing an example of the configuration of the display cover 70 attached to the outdoor unit B (hereinafter referred to as display cover 70A).
- FIG. 3 is an enlarged schematic view further showing a part of the side surface of the outdoor unit B to which the display cover 70A is attached. Based on FIG.2 and FIG.3, the recognition by the operator of the kind of refrigerant
- the liquid side valve 8 and the gas side valve 9 are provided on the side surface of the outdoor unit B.
- the gas side valve 9 is provided with a service port 23 for refrigerant charging.
- An operator at the installation site removes the sealing hexagon nut 24 and then attaches a charging hose for charging the refrigerant to the refrigerant charging service port 23. By doing in this way, it has the structure which can open the push pin type valve built in service port 23 for refrigerant charge, and can enclose a refrigerant.
- the sealing hexagon nut 24 used in the R410A refrigerant air conditioner currently used in the mainstream has a 1/2 inch screw specification. Moreover, the hexagon opposite side of the hexagon nut 24 for sealing is 17 mm. However, if the hexagon nut 24 for sealing having such a specification is used, when the type of refrigerant different from the R410A refrigerant is sealed in the installed air conditioner, the operator mistakes the type of refrigerant. Cheap.
- a display cover 70 ⁇ / b> A displaying the refrigerant name is installed at the connection part of the gas side valve 9 on the outdoor unit B side.
- the display cover 70A may be formed of an elastic member such as resin, metal, or rubber.
- the display cover 70 ⁇ / b> A includes a cover part 71 ⁇ / b> A, a connecting part 72 ⁇ / b> A, and a ring part 73 ⁇ / b> A.
- the cover portion 71A is configured to cover (cover) the hexagonal column portion of the sealing hexagon nut 24. That is, the cover portion 71 ⁇ / b> A is configured such that the hexagonal column of the sealing hexagon nut 24 is inserted therein and covers the hexagonal columnar outer periphery of the sealing hexagon nut 24. Also, a plurality of refrigerant names “R32” are displayed on the cover portion 71A, and the refrigerant name can be discriminated from any angle. It is possible to add not only the type of refrigerant but also a mark or initial indicating that it is a flammable refrigerant to the cover portion 71A, or display a wording of precautions.
- the connecting portion 72A connects the cover portion 71A and the ring portion 73A and is configured to be bendable. That is, the connecting portion 72A is configured to be connected to a part of the cover portion 71A and to be connected to a part of the ring portion 73A.
- the connecting portion 72A is formed in, for example, a flat belt shape and can be bent. As shown in FIG. 2, the upper and lower surfaces of the central portion of the connecting portion 72A are preferably recessed from the cover portion 71A and the ring portion 73A side, that is, the wall thickness is reduced so that it can be bent easily. By doing so, the connecting portion 72A can be easily bent, and workability when the cover portion 71A is put on the sealing hexagon nut 24 can be improved. In addition, what is necessary is just to determine suitably the thickness and width
- the ring part 73A is configured to have a larger diameter than the connection part of the gas side valve 9 on the outdoor unit B side so as to be attached to the connection part of the gas side valve 9 on the outdoor unit B side.
- the gas side valve 9 is expanded as shown in FIG. 3 by spreading the ring portion 73A in the vicinity of the screw fixing portion of the gas side valve 9 screwed to the valve fixing plate 14. It is good to attach it in the state hooked on. If it carries out like this, it can be set as the specification which the ring part 73A is temporarily extended using the elasticity of rubber
- the display cover 70A By providing the display cover 70A, when charging the refrigerant when the outdoor unit B is installed or at the time of service, the operator removes the sealing hexagon nut 24 of the refrigerant charge service port 23 before the work. Therefore, the cover portion 71A of the display cover 70A must be removed. That is, the display cover 70 ⁇ / b> A acts as one of the accessory parts that require an operator's operation when removing the sealing hexagon nut 24.
- FIG. 4 is a perspective view showing another example of the configuration of the display cover 70 attached to the outdoor unit B (hereinafter referred to as display cover 70B).
- FIG. 5 is an enlarged schematic view further enlarging and showing a part of the side surface of the outdoor unit B to which the display cover 70B is attached. Based on FIG.4 and FIG.5, the recognition by the operator of the kind of refrigerant
- the basic configuration of the display cover 70B is the same as that of the display cover 70A shown in FIG. 2, but the configuration of the ring portion (hereinafter referred to as the ring portion 73B) attached to the gas side valve 9 is different from the specification. It has become.
- the display cover 70B includes a cover portion 71B, a connecting portion 72B, and a ring portion 73B.
- the cover part 71B and the connection part 72B it has the same structure as the cover part 71A and the connection part 72A of the display cover 70A shown in FIG.
- the ring portion 73B is assumed to be a portion different from the position where the ring portion 73A of the display cover 70A shown in FIG. 2 is attached, the ring portion 73B is configured in a shape having a different specification from the ring portion 73A of the display cover 70A shown in FIG. ing. Specifically, the ring portion 73B is attached not by being connected to the outdoor unit B side of the gas side valve 9 but by being fitted into the gas side valve 9 at the root portion where the sealing hexagon nut 24 is attached. It is configured.
- the ring part 73 ⁇ / b> B has a first ring part 74 and a second ring part 75.
- the first ring portion 74 is configured in a ring shape having a diameter equal to or less than that of the gas side valve 9 at the root portion to which the sealing hex nut 24 is attached, and is sealed using elastic force. It is fixed (locked) to the gas side valve 9 at the root portion to which the hexagon nut 24 is attached.
- the second ring portion 75 has a central portion 75A and a U-shaped portion 75B (first U-shaped portion) that protrudes to the outer peripheral side from the central portion 75A, and the U-shaped portion 75B is deformed. Is configured to do.
- the ring portion 73B may be made of elastically deformable rubber or resin.
- the ring part 73B is made of rubber, it becomes possible to cope with a plurality of specifications of the sealing hexagon nut 24 and the gas side valve 9 having different sizes, and the workability is further improved.
- the number of U-shaped portions 75B is not limited to the number shown in the drawing.
- the U-shaped part 75B is deformed, and the gas side valve 9 at the base part where the sealing hexagon nut 24 is attached to the central part 75A is once fitted, and then Then, the ring part 73B is slid to move the gas side valve 9 at the root part where the sealing hexagon nut 24 is attached to the first ring part 74. By doing so, the gas side valve 9 at the base portion to which the sealing hexagon nut 24 is attached is locked by the first ring portion 74. Finally, if the cover 71B is put on the sealing hexagon nut 24, the attachment is completed.
- the display cover 70B when charging the refrigerant when the outdoor unit B is installed or at the time of service, the operator removes the sealing hexagon nut 24 of the refrigerant charging service port 23 before the work. Therefore, the cover portion 71B of the display cover 70B must be removed. That is, the display cover 70 ⁇ / b> B acts as one of the accessory parts accompanied by the operator's operation when removing the sealing hex nut 24.
- FIG. 6 is a perspective view showing another example of the configuration of the display cover 70 attached to the outdoor unit B (hereinafter referred to as display cover 70C).
- FIG. 7 is an enlarged schematic view showing a part of the side surface of the outdoor unit B to which the display cover 70 ⁇ / b> C is attached further enlarged. Based on FIG.6 and FIG.7, the recognition by the operator of the kind of refrigerant
- the basic configuration of the display cover 70C is the same as that of the display cover 70A shown in FIG. 2, but the configuration of the ring portion (hereinafter referred to as the ring portion 73C) attached to the gas side valve 9 is different from the specification. It has become.
- the display cover 70 ⁇ / b> C includes a cover part 71 ⁇ / b> C, a connecting part 72 ⁇ / b> C, and a ring part 73 ⁇ / b> C.
- the cover portion 71C and the connecting portion 72C have the same configuration as the cover portion 71A and the connecting portion 72A of the display cover 70A shown in FIG.
- the ring portion 73C is assumed to be a portion different from the position where the ring portion 73A of the display cover 70A shown in FIG. 2 is attached, the ring portion 73C is configured in a shape having a different specification from the ring portion 73A of the display cover 70A shown in FIG. ing. Specifically, the ring portion 73 ⁇ / b> C is fitted and attached to the gas side valve 9 in the root portion where the sealing hex nut 24 is attached, not the connection portion of the gas side valve 9 on the outdoor unit B side. It is configured.
- the ring part 73 ⁇ / b> C includes a ring center part 76 and a U-shaped part 77 (second U-shaped part) that protrudes more outward than the ring center part 76.
- the ring center portion 76 is configured in a ring shape having a diameter equal to or less than that of the gas side valve 9 at the root portion to which the sealing hex nut 24 is attached, and the sealing hex nut 24 is attached thereto. It is fixed (locked) to the gas side valve 9 at the root portion.
- the U-shaped portion 77 is configured to be deformable.
- the ring portion 73C may be made of elastically deformable rubber or resin.
- the ring part 73C is made of rubber, it becomes possible to cope with a plurality of specifications of the sealing hexagon nut 24 and the gas side valve 9 having different sizes, and the workability is further improved.
- at least two U-shaped portions 77 may be provided as shown in FIG.
- the U-shaped portion 77 is deformed, and the gas side valve 9 at the root portion where the sealing hexagon nut 24 is attached to the ring central portion 76 is attached. By doing so, the gas side valve 9 at the root portion to which the sealing hexagon nut 24 is attached is locked at the ring central portion 76. Finally, if the cover 71B is put on the sealing hexagon nut 24, the attachment is completed.
- the display cover 70 ⁇ / b> C By providing the display cover 70 ⁇ / b> C, when the refrigerant is charged when the outdoor unit B is installed or at the time of service, the worker is required to remove the sealing hexagon nut 24 of the refrigerant charge service port 23 before the work. Therefore, the cover portion 71C of the display cover 70C has to be removed. That is, the display cover 70 ⁇ / b> C acts as one of the accessory parts accompanied by the operator's operation when removing the sealing hex nut 24.
- FIG. 8 is a perspective view showing another example of the configuration of the display cover 70 attached to the outdoor unit B (hereinafter referred to as display cover 70D).
- FIG. 9 is an enlarged schematic view further showing a part of the side surface of the outdoor unit B to which the display cover 70D is attached. Based on FIG.8 and FIG.9, the recognition by the operator of the kind of refrigerant
- the basic configuration of the display cover 70D is the same as that of the display cover 70A shown in FIG. 2, but the configuration of a ring portion (hereinafter referred to as a ring portion 73D) attached to the gas side valve 9 is different from the specification. It has become.
- the display cover 70D has a cover part 71D, a connecting part 72D, and a ring part 73D.
- the cover portion 71D has the same configuration as the cover portion 71A of the display cover 70A shown in FIG. About the connection part 72D, in FIG. 8, the flat strip
- the ring part 73D is assumed to be a part different from the position where the ring part 73A of the display cover 70A shown in FIG. 2 is attached, the ring part 73D is configured in a shape having a different specification from the ring part 73A of the display cover 70A shown in FIG. ing. Specifically, the ring portion 73D is attached not by being connected to the outdoor unit B side of the gas side valve 9 but by being fitted into the gas side valve 9 at the root portion where the sealing hexagon nut 24 is attached. It is configured.
- the ring portion 73D is configured in a ring shape by providing an asterisk-shaped hole in a circular member. Therefore, ring part 73D is good to comprise rubber or resin which can be elastically deformed. For example, if the ring portion 73D is made of rubber, it is possible to cope with a plurality of specifications of the sealing hexagon nut 24 and the gas side valve 9 having different sizes, and the workability is further improved.
- the gas side valve 9 at the root portion of the sealing hex nut 24 is pushed into the asterisk-shaped hole and attached.
- the gas side valve 9 portion at the base to which the sealing hexagon nut 24 is attached is pushed into the asterisk-shaped hole and locked.
- the cover 71B is put on the sealing hex nut 24, the attachment is completed.
- the display cover 70D By providing the display cover 70D, when the refrigerant is charged when the outdoor unit B is installed or at the time of service, the operator removes the sealing hexagon nut 24 of the refrigerant charge service port 23 before the work. Therefore, the cover portion 71D of the display cover 70D must be removed. That is, the display cover 70 ⁇ / b> D acts as one of the accessory parts accompanied by the operator's operation when removing the sealing hex nut 24.
- the accessory type (display covers 70A to 70D) accompanied by the operator's operation is provided when removing the sealing hexagon nut 24, so that the type of refrigerant can be simply set.
- the type of refrigerant used can be surely recognized by the operator, rather than the method of writing on a seal or the like and pasting it around the connection valve. For this reason, at the time of a refrigerant
- a flammable refrigerant such as R32 refrigerant is used, the effect from the viewpoint of safety is great, and in addition, it contributes to suppressing global warming.
- the shapes of the connecting portions 72 are not limited to those illustrated, but can be set as appropriate.
- the display on the cover unit 71 may include not only the type of refrigerant but also a mark indicating that it is a flammable refrigerant, initials, and precautions in words.
- the stamp is more suitable than the printed matter from the viewpoint that the display is not easily erased even after long-term use. For example, it is suitable for identifying the type of refrigerant at the time of refrigerant collection at a recycling center.
- Printed materials are suitable for clarifying the precautions, but marks and initials are suitable when the display space is small or when devices are deployed globally.
- the gas side valve 9 can be obtained by removing the service cover 10 from the outdoor unit B.
- the information described in can be confirmed. For this reason, unnecessary information is not given to general users, and there is no fear of causing confusion.
- a slightly flammable refrigerant such as R32 is flammable, but it is very difficult to burn. There is no worry to invite. For this reason, if a mechanism for giving precautions only to the worker is provided, it is most suitable for an apparatus using a slightly flammable refrigerant so as not to give unnecessary unease to general users.
- a refrigerant recovery device is connected to the refrigerant charge service port 23 to recover the refrigerant.
- a refrigerant cylinder prepared in advance is connected to the refrigerant charging service port 23 to enclose the refrigerant, and the refrigerant filled in the refrigerant cylinder is enclosed in the device.
- the type of refrigerant differs from that of the conventional refrigerant at the stage of removing the sealing hexagon nut 24 of the refrigerant charging service port 23.
- the port specification of the refrigerant charge service port 23 is a screw having a screw diameter of 1/2 inch which is the same as that of the conventional R410A refrigerant.
- the charging hose, vacuum pump, pressure gauge, etc. prepared by the operator need only be the same as the previous ones, and it is necessary to prepare (purchase) these equipment for R32. Absent. Therefore, it is possible to expect the operator to quickly disseminate the air conditioner A using a refrigerant having a low global warming potential in the market without the need for the expense and period for special infrastructure maintenance.
- the port specification for the refrigerant charge service port 23 uses the same 1/2 inch screw as that of the currently mainstream R410A refrigerant, but the port specification used for the conventional R22 refrigerant is used. 7/16 inch screws may be used. Since the operator already possesses the charge hose, vacuum pump, pressure gauge, etc. that have been used in the R22 refrigerant and R410A refrigerant devices that have been used in the past, the same effect can be obtained even for the R22 refrigerant. Is obtained.
- the air conditioner A is not limited to a separate type home air conditioner, and the refrigerant charge If the outdoor service port 23 is provided in the outdoor unit B, the air conditioner A can be applied to a commercial air conditioner, a refrigeration apparatus, and the like.
- the description of the appearance color of the cover portion 71 is not special.
- the display color of the refrigerant cylinder differs depending on the refrigerant, it is preferable that the appearance color of these display boards and display covers be the same color as the refrigerant cylinder so that the type of refrigerant can be easily understood.
- the cylinder display color of the refrigerant R32 is light blue
- the display board and the display cover are also preferably light blue.
- cover part 71 (cover parts 71A to 71D, connecting part 72 (connecting parts 72A to 72D), ring part 73 (ring parts 73A to 73D) may be integrally formed of the same material.
- the ring portion 73 is formed of metal
- the connecting portion 72 is formed of a soft rubber
- the cover portion 71 is softer than the connecting portion 72. It is also possible to form the cover part 71, the connecting part 72, and the ring part 73 all from the same material, for example, rubber.
- the ring portion 73 is preferably made of rubber, but is not limited thereto.
- a part of the ring part 73 can be made of metal and the others can be made of rubber or resin, or the ring part 73 can be made of metal and can be formed with an elastic spring interposed therebetween. is there.
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Abstract
Description
室外機Bは、支持台51を空調対象空間とは別空間(例えば屋外)に設置し、支持台51に固定され、室内機Cに冷熱又は温熱を供給する。また、室外機Bは、運転時の風路が確保でき、かつ室内機Cからの距離があまり長くならない位置などに設置するとよい。
室内機Cは、据付板21を例えば室内側の壁面にビス59等で固定し、据付板21に引っ掛けるようにして固定され、空調対象空間に空調空気を供給する。 The air conditioner A is applied as, for example, a separate-type home air conditioner, and includes an indoor unit C and an outdoor unit B.
The outdoor unit B installs the
The indoor unit C fixes the
同様に、室内機Cのガス側配管接続ジョイント13と、室外機Bのガス側バルブ9とを、フレア加工を行った延長配管7を用いて結合する。これにより、室内機Cの要素機器と室外機Bの要素機器とが配管接続され、冷媒回路が構成される。 To the indoor unit C, a liquid pipe side pipe connection joint 12 and a gas side pipe connection joint 13 are connected. A liquid side valve (refrigerant pipe connection valve) 8 and a gas side valve (refrigerant pipe connection valve) 9 are connected to the outdoor unit B. Then, the liquid pipe side pipe connection joint 12 of the indoor unit C and the
Similarly, the gas side pipe connection joint 13 of the indoor unit C and the
室内機Cは、室内熱交換器及び送風ファンを少なくとも有している。
室内熱交換器は、暖房運転時には凝縮器(放熱器)、冷房運転時には蒸発器として機能するものである。
送風ファンは、室内熱交換器の近傍に配置され、室内熱交換器に風を供給するものである。 (Indoor unit C)
The indoor unit C has at least an indoor heat exchanger and a blower fan.
The indoor heat exchanger functions as a condenser (heat radiator) during heating operation and as an evaporator during cooling operation.
The blower fan is disposed near the indoor heat exchanger and supplies air to the indoor heat exchanger.
室外機Bは、冷媒を圧縮する例えば回転数可変型の圧縮機、冷媒の流れを切り替える四方弁、暖房運転時には蒸発器、冷房運転時には凝縮器(放熱器)として機能する室外熱交換器、冷媒の圧力を減圧する流量制御装置(減圧器)、及び、室外熱交換器に風を送る室外ファンを少なくとも有している。
室外機Bは、前面及び側面の一部を構成する前面板62と、天面を構成する天面板65と、側面の一部を構成する側面板66とによって形成される筐体(外郭)を有している。 (Outdoor unit B)
The outdoor unit B includes, for example, a variable speed compressor that compresses refrigerant, a four-way valve that switches the flow of refrigerant, an evaporator during heating operation, an outdoor heat exchanger that functions as a condenser (heat radiator) during cooling operation, and refrigerant At least an outdoor fan that sends air to the outdoor heat exchanger.
The outdoor unit B includes a casing (outer wall) formed by a
側面板66には、ケーブル22が室外機Bの外部に引き出される開口部68が形成されている。側面板66の開口部68から露出したケーブル22は、サービスカバー10で覆われる。また、室外機Bには、圧縮機や四方弁、室外ファンを駆動するための駆動装置、及び、室内機Cと電気的に接続するための端子台17が備えられている。 The
The
室内機Cの室内熱交換器、室外機Bの圧縮機、四方弁、室外熱交換器、及び、流量制御装置が、配管接続されることで冷媒回路が構成される。具体的には、暖房運転時には、圧縮機、四方弁、室内熱交換器、流量制御装置、室外熱交換器の順に冷媒が流れるように、冷房運転時には、圧縮機、四方弁、室外熱交換器、流量制御装置、室内熱交換器の順に冷媒が流れるように、冷媒回路が構成される。
なお、四方弁を設けずに、冷房運転のみ又は暖房運転のみを行うようにしてもよい。また、四方弁の代用として、例えば、二方弁や三方弁を複数個用い、同じように冷媒の流れを切り換えられるように構成してもよい。 (Refrigerant circuit)
A refrigerant circuit is configured by connecting the indoor heat exchanger of the indoor unit C, the compressor of the outdoor unit B, the four-way valve, the outdoor heat exchanger, and the flow rate control device. Specifically, during the heating operation, the refrigerant flows in the order of the compressor, the four-way valve, the indoor heat exchanger, the flow control device, and the outdoor heat exchanger. During the cooling operation, the compressor, the four-way valve, and the outdoor heat exchanger The refrigerant circuit is configured such that the refrigerant flows in the order of the flow rate control device and the indoor heat exchanger.
Note that only the cooling operation or the heating operation may be performed without providing the four-way valve. Further, as a substitute for the four-way valve, for example, a plurality of two-way valves or three-way valves may be used so that the refrigerant flow can be switched in the same manner.
空気調和装置Aの冷媒回路を循環させる冷媒としては、可燃性を有した例えばR32冷媒がある。ただし、空気調和装置Aに使用する冷媒をR32冷媒に限定するものではない。例えば、その他可燃性冷媒(例えば、R290冷媒)、二酸化炭素(CO2)や炭化水素、ヘリウム等のような自然冷媒や、R410Aはもちろん、R407C、R404A等の代替冷媒等の塩素を含まない冷媒を採用してもよい。 (Refrigerant)
As a refrigerant circulating through the refrigerant circuit of the air conditioner A, there is, for example, R32 refrigerant having flammability. However, the refrigerant used for the air conditioner A is not limited to the R32 refrigerant. For example, other flammable refrigerants (for example, R290 refrigerant), natural refrigerants such as carbon dioxide (CO 2 ), hydrocarbons, helium, etc., refrigerants that do not contain chlorine, such as R410A, as well as alternative refrigerants such as R407C and R404A May be adopted.
次に、空気調和装置Aの据え付け方法について説明する。
まず、室内機Cを固定するための据付板21を室内側の壁面にビス59等で固定する。この据付板21に室内機Cを引っ掛けるようにして固定する。
そして、室外機Bを運転時の風路が確保でき、かつ室内機Cからの距離があまり長くならない位置(例えば、家屋の周囲の空間、ベランダ、屋根、車庫、庭等)に設置する。 (Installation method of air conditioner A)
Next, a method for installing the air conditioner A will be described.
First, the
Then, the outdoor unit B is installed in a position (for example, a space around the house, a veranda, a roof, a garage, a garden, etc.) where the air path during operation can be secured and the distance from the indoor unit C is not so long.
なお、一般的には、2本の延長配管7のそれぞれの周囲を断熱材で覆う。そして、断熱材で覆われた2本の延長配管7をまとめてテープ61で巻く。 Then, the
In general, each of the two
カバー部71B及び連結部72Bについては、図2に示す表示カバー70Aのカバー部71A及び連結部72Aと同様の構成となっている。 As shown in FIG. 4, the
About the
第1リング部74は、封止用六角ナット24が取り付けられている根元部分におけるガス側バルブ9と同等又はそれ以下の径のリング状に構成されており、弾性力を利用して封止用六角ナット24が取り付けられている根元部分におけるガス側バルブ9に固定(ロック)されるものである。
第2リング部75は、中央部75Aと、中央部75Aよりも外周側に突出させたU字形状部75B(第1U字形状部)と、を有しており、U字形状部75Bが変形するように構成されている。 The ring part 73 </ b> B has a
The
The
カバー部71C及び連結部72Cについては、図2に示す表示カバー70Aのカバー部71A及び連結部72Aと同様の構成となっている。 As shown in FIG. 6, the display cover 70 </ b> C includes a cover part 71 </ b> C, a connecting part 72 </ b> C, and a ring part 73 </ b> C.
The
リング中央部76は、封止用六角ナット24が取り付けられている根元部分におけるガス側バルブ9と同等又はそれ以下の径のリング状に構成されており、封止用六角ナット24が取り付けられている根元部分におけるガス側バルブ9に固定(ロック)されるものである。
U字形状部77は、変形可能に構成されている。 The ring part 73 </ b> C includes a
The
The
カバー部71Dについては、図2に示す表示カバー70Aのカバー部71Aと同様の構成となっている。
連結部72Dについては、図8では、平坦な帯形状を示している。 As shown in FIG. 8, the
The
About the
そのため、リング部73Dは、弾性変形可能なゴム又は樹脂で構成するとよい。例えば、リング部73Dをゴム製とすれば、サイズが異なる封止用六角ナット24やガス側バルブ9の複数の仕様に対応することが可能になり、作業性が更に向上することになる。 The
Therefore,
Claims (6)
- 冷媒をチャージする際に取り外される封止用六角ナットにより封止される冷媒チャージ用サービスポートが設けられている冷媒配管接続バルブを備えた室外機であって、
使用されている冷媒の種類、及び、注意文書の少なくとも1つが記載され、前記封止用六角ナットの六角柱状の外周を覆うカバー部と、
前記冷媒配管接続バルブに取り付けられるリング部と、
屈曲可能に構成され、前記カバー部と前記リング部とを接続する連結部と、を有する表示カバーを備えた
室外機。 An outdoor unit comprising a refrigerant pipe connection valve provided with a service port for refrigerant charging sealed by a hexagon nut for sealing removed when charging the refrigerant,
The type of refrigerant used, and at least one of caution documents are described, and a cover portion covering the hexagonal columnar outer periphery of the sealing hex nut;
A ring portion attached to the refrigerant pipe connection valve;
An outdoor unit comprising a display cover that is configured to be bendable and includes a connecting portion that connects the cover portion and the ring portion. - 前記表示カバーは、
前記カバー部、前記リング部、及び、前記連結部が弾性変形可能なゴムで一体的に形成されている
請求項1に記載の室外機。 The display cover is
The outdoor unit according to claim 1, wherein the cover part, the ring part, and the connection part are integrally formed of elastically deformable rubber. - 前記リング部は、
弾性力を利用して、前記冷媒配管接続バルブに固定される
請求項1又は2に記載の室外機。 The ring part is
The outdoor unit according to claim 1, wherein the outdoor unit is fixed to the refrigerant pipe connection valve using an elastic force. - 前記連結部は、
屈曲可能な帯状に形成されている
請求項1~3のいずれか一項に記載の室外機。 The connecting portion is
The outdoor unit according to any one of claims 1 to 3, wherein the outdoor unit is formed in a bendable belt shape. - 前記連結部は、
中央部の肉厚を、それ以外の部分の肉厚よりも薄くしている
請求項4に記載の室外機。 The connecting portion is
The outdoor unit according to claim 4, wherein the thickness of the central portion is made thinner than the thickness of other portions. - 請求項1~5のいずれか一項に記載の室外機と、
前記室外機に接続される室内機と、を備えた
ことを特徴とする空気調和装置。 An outdoor unit according to any one of claims 1 to 5,
An air conditioner comprising: an indoor unit connected to the outdoor unit.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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EP15816638.9A EP3062044B1 (en) | 2015-01-09 | 2015-01-09 | Outdoor unit and air conditioner |
RU2017128222A RU2677975C1 (en) | 2015-01-09 | 2015-01-09 | Outdoor unit and air conditioning installation |
TR2016/01228T TR201601228T1 (en) | 2015-01-09 | 2015-01-09 | Outdoor unit and air conditioner. |
US15/512,660 US20170292721A1 (en) | 2015-01-09 | 2015-01-09 | Outdoor unit and air-conditioning apparatus |
SG11201702514PA SG11201702514PA (en) | 2015-01-09 | 2015-01-09 | Outdoor unit and air-conditioning apparatus |
JP2016568240A JPWO2016110998A1 (en) | 2015-01-09 | 2015-01-09 | Outdoor unit and air conditioner |
PCT/JP2015/050465 WO2016110998A1 (en) | 2015-01-09 | 2015-01-09 | Outdoor unit and air conditioner |
CN201580053504.2A CN106796069A (en) | 2015-01-09 | 2015-01-09 | Outdoor unit and air-conditioning device |
AU2015375971A AU2015375971B2 (en) | 2014-03-26 | 2015-01-09 | Outdoor unit and air-conditioning apparatus |
CN201520805172.6U CN205102262U (en) | 2015-01-09 | 2015-10-16 | Outdoor unit and air conditioner device |
Applications Claiming Priority (1)
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PCT/JP2015/050465 WO2016110998A1 (en) | 2015-01-09 | 2015-01-09 | Outdoor unit and air conditioner |
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WO2016110998A1 true WO2016110998A1 (en) | 2016-07-14 |
Family
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PCT/JP2015/050465 WO2016110998A1 (en) | 2014-03-26 | 2015-01-09 | Outdoor unit and air conditioner |
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US (1) | US20170292721A1 (en) |
EP (1) | EP3062044B1 (en) |
JP (1) | JPWO2016110998A1 (en) |
CN (2) | CN106796069A (en) |
AU (1) | AU2015375971B2 (en) |
RU (1) | RU2677975C1 (en) |
SG (1) | SG11201702514PA (en) |
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JP2021042872A (en) * | 2019-09-06 | 2021-03-18 | 東芝キヤリア株式会社 | Refrigeration cycle device |
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DE102022123440A1 (en) | 2022-09-14 | 2024-03-14 | Vaillant Gmbh | Service connection for a heat pump housing |
CN116136337B (en) * | 2023-03-08 | 2023-09-19 | 珠海三友环境技术有限公司 | Drainage joint and dehumidifier |
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EP3062044A1 (en) | 2016-08-31 |
CN205102262U (en) | 2016-03-23 |
AU2015375971B2 (en) | 2018-05-24 |
AU2015375971A1 (en) | 2017-04-27 |
JPWO2016110998A1 (en) | 2017-07-06 |
RU2677975C1 (en) | 2019-01-22 |
EP3062044A4 (en) | 2017-02-01 |
US20170292721A1 (en) | 2017-10-12 |
SG11201702514PA (en) | 2017-07-28 |
EP3062044B1 (en) | 2020-11-18 |
TR201601228T1 (en) | 2017-05-22 |
CN106796069A (en) | 2017-05-31 |
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