WO2020189527A1 - 冷媒サイクルシステム - Google Patents
冷媒サイクルシステム Download PDFInfo
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- WO2020189527A1 WO2020189527A1 PCT/JP2020/010923 JP2020010923W WO2020189527A1 WO 2020189527 A1 WO2020189527 A1 WO 2020189527A1 JP 2020010923 W JP2020010923 W JP 2020010923W WO 2020189527 A1 WO2020189527 A1 WO 2020189527A1
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- Prior art keywords
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- power supply
- indoor
- supply unit
- refrigerant cycle
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Classifications
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- 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
- F24F11/88—Electrical aspects, e.g. circuits
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- 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
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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- 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
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- 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
- F25B6/00—Compression machines, plants or systems, with several condenser circuits
- F25B6/04—Compression machines, plants or systems, with several condenser circuits arranged in series
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- 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
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/15—Power, e.g. by voltage or current
Definitions
- Non-Patent Document 1 Mitsubishi Electric Building Air Conditioning Multi Air Conditioning System Design / Construction Manual”, Mitsubishi Electric Corporation, created in July 2013, p146, see figure
- the outdoor unit, indoor unit, and power supply unit are: They are connected in parallel via a communication line.
- the refrigerant cycle system of the first aspect includes a refrigerant cycle, a first power supply unit, a second power supply unit, a first transmission line, and a second transmission line.
- the refrigerant cycle includes a heat source unit, a first utilization unit group, and a second utilization unit group.
- the first power supply unit supplies the auxiliary power supply to the utilization unit whose power supply is cut off.
- the first power supply unit is a unit different from the heat source unit.
- the second power supply unit supplies the auxiliary power supply to the utilization unit whose power supply is cut off.
- the second power supply unit is a unit different from the heat source unit.
- the first transmission line connects the heat source unit and the first power supply unit.
- the second transmission line connects the first power supply unit and the second power supply unit.
- the second power supply unit is connected to the heat source unit via the first power supply unit.
- the refrigerant cycle system of the second aspect is the system of the first aspect, and the heat source unit, the first power supply unit, and the second power supply unit are connected in series by the first transmission line and the second transmission line. ..
- FIG. 1 is a schematic diagram showing an example of the configuration of the refrigerant cycle system 1 according to the present embodiment.
- the refrigerant cycle system 1 shown in FIG. 1 mainly includes an outdoor unit 10, a first indoor unit group 20A including a plurality of indoor units, a second indoor unit group 20B including a plurality of indoor units, and a first power supply unit.
- a 30a, a second power feeding unit 30b, and a transmission line 40 are provided.
- the first chamber unit group 20A includes three chamber units 20a, 20b and 20c.
- the second indoor unit group 20B includes three indoor units 20d, 20e and 20f.
- the outdoor unit 10 included in the refrigerant cycle system 1 and the indoor units 20a, 20b, 20c, 20d, 20e, and 20f are connected to each other by a refrigerant pipe 2 (see FIG. 2) to form a refrigerant cycle. are doing.
- the outdoor unit 10, the indoor units 20a, 20b, 20c20d, 20e, 20f, the first power supply unit 30a, and the second power supply unit 30b included in the refrigerant cycle system 1 are connected to each other by a transmission line 40. There is. This enables communication between each unit.
- the number of indoor units that can be connected to one outdoor unit is determined by the capacity and performance of the outdoor unit.
- the number of indoor units that can be connected to the outdoor unit 10 in the present embodiment is, for example, 16, but is not limited to this.
- the arrangement of the power supply units is not limited to the arrangement shown in FIG. 1, and the number of power supply units is not limited to this.
- the refrigerant cycle system 1 may be composed of at least one outdoor unit, one or more indoor unit groups including one or more indoor units, and one or more power feeding units.
- the refrigerant pipe 2 is branched by a branch pipe, and connects the outdoor unit 10 and the indoor units 20a, 20b, 20c, 20d, 20e, and 20f.
- Refrigerant flows inside the refrigerant pipe 2.
- the type of the refrigerant is not particularly limited.
- the refrigerant cycle system shown in FIG. 2 is an enlargement of a part (a portion surrounded by a broken line) of the refrigerant cycle system 1 shown in FIG. 1 for the sake of simplicity.
- the indoor units 20a, 20b, 20c, 20d, 20e, and 20f included in the refrigerant cycle system 1 have the same configuration as the indoor unit 20a shown in FIG. 2, and the refrigerant cycle system 1 has the same configuration.
- the second power supply unit 30b included will be described as having the same configuration as the first power supply unit 30a shown in FIG.
- Each configuration is a specific example and can be changed as appropriate without departing from the spirit, and it goes without saying that each unit does not have to be the same as the other units.
- Outdoor unit 10 As shown in FIG. 2, the outdoor unit 10 as a heat source unit is connected to a power source 11 which is a commercial power source and is a main power source of the outdoor unit 10.
- the outdoor unit 10 includes an outdoor heat exchanger 12, an outdoor fan 13, a compressor 14, an outdoor control unit 15, and a communication unit 16.
- the outdoor heat exchanger 12 conducts heat exchange by condensing or evaporating the refrigerant flowing through the refrigerant pipe 2.
- the outdoor fan 13 blows air to the outdoor heat exchanger 12 to exchange heat with the refrigerant.
- the compressor 14 compresses and circulates the refrigerant in the refrigerant pipe 2.
- the outdoor control unit 15 controls the outdoor unit 10 and the entire refrigerant cycle system 1.
- the communication unit 16 communicates with another unit.
- Each of these configurations of the outdoor unit 10 functions by being supplied with electric power from the power source 11 via the power supply line.
- the indoor unit 20a as a utilization unit is connected to a power source 21a which is a commercial power source and is a main power source of the indoor unit 20a.
- the indoor unit 20a includes an indoor heat exchanger 22a, an indoor fan 23a, an expansion valve 24a, an indoor control unit 25a, a communication unit 26a, and a cutoff detection unit 27a.
- the indoor heat exchanger 22a conducts heat exchange by condensing or evaporating the refrigerant flowing through the refrigerant pipe 2.
- the indoor fan 23a blows air to the indoor heat exchanger 22a to exchange heat with the refrigerant.
- the expansion valve 24a adjusts the amount of refrigerant flowing through the refrigerant pipe 2.
- the indoor control unit 25a controls the entire indoor unit 20a.
- the communication unit 26a communicates with another unit.
- the cutoff detection unit 27a detects that the power supply from the power supply 21a is cut off
- the cutoff detection unit 27a transmits a cutoff signal to the outdoor control unit 15 of the outdoor unit 10.
- the cutoff signal includes a signal for notifying that the main power supply has been cut off and identification information of the indoor unit in which the main power supply has been cut off.
- the identification information of the indoor unit is information unique to each indoor unit.
- the identification information of each indoor unit is stored in the outdoor control unit 15 of the outdoor unit 10.
- each configuration of the indoor unit 20a functions by supplying power from the power supply 21a via the power supply line.
- the first power supply unit 30a is connected to a power source 31a which is a commercial power source and is a main power source of the first power supply unit 30a.
- the first power supply unit 30a includes a power supply control unit 32a that controls the entire power supply unit 30a, and a communication unit 33a for communicating with other units.
- Each of these configurations of the first power supply unit 30a functions by supplying power from the power supply 31a via the power supply line.
- the number of indoor units that the power supply unit can supply at the same time is determined in advance according to the performance of the power supply unit.
- the electric power supplied by the power supply unit to the indoor unit is used as an auxiliary power source.
- the auxiliary power supply is mainly used to adjust the opening of the expansion valve of the indoor unit.
- the auxiliary power supply may be used for various actuator operations in the indoor unit.
- the actuator operation is, for example, an operation of closing the grill panel included in the indoor unit, an operation of collecting various information about the indoor unit, and the like.
- the actuator operation performed by using the auxiliary power supply is a preset operation.
- the power supply unit that supplies auxiliary power to each indoor unit is set in advance, and when the main power supply of each indoor unit is cut off, the set power supply unit supplies auxiliary power.
- the first power supply unit 30a supplies auxiliary power to 20a, 20b, and 20c.
- the second power supply unit 30b supplies auxiliary power to 20d, 20e, and 20f. The process by which the power supply unit supplies auxiliary power to the indoor unit will be described in detail later.
- (2-4) Transmission line 40 As shown in FIG. 1, the transmission line 40 connects each unit included in the refrigerant cycle 1.
- the transmission line 40 is usually mainly used for communication, and enables communication between each communication unit.
- the transmission line 40 serves as a power supply line for supplying auxiliary power from the power supply unit to the indoor unit when the main power supply of the indoor unit is cut off.
- the transmission line 40 is used for both transmission and power supply.
- the transmission line 40 includes a first transmission line 41, a second transmission line 42, and a third transmission line 43.
- the first transmission line 41 connects the outdoor unit 10 and the first power supply unit 30a in series.
- the second transmission line 42 connects the first power supply unit 30a and the second power supply unit 30b in series.
- the second transmission line 42 includes transmission lines 42a, 42b, 42c, 42d connecting the units, the first power supply unit 30a, and the indoor units 20a, 20b included in the indoor unit group 20A. , 20c and the second power supply unit 30b are connected.
- the second transmission line 42 may connect the first power supply unit 30a and the second power supply unit 30b in series, and the connection form of the indoor units 20a, 20b, 20c included in the indoor unit group 20A is There is no particular limitation.
- the indoor units 20a, 20b, and 20c are connected to, for example, a string of beads.
- the third transmission line 43 connects the second power supply unit 30b and the third power supply unit (not shown) in series.
- the third transmission line 43 includes transmission lines 43a, 43b, 43c, 43d connecting the units, the second power supply unit 30b, and the indoor units 20d, 20e included in the indoor unit group 20B. , 20f and the third power supply unit are connected.
- the third transmission line 43 may connect the second power supply unit 30b and the third power supply unit in series, and the connection form of the indoor units 20d, 20e, and 20f included in the indoor unit group 20B is particularly particular. Not limited.
- FIG. 3 is a flowchart showing an example of processing of the refrigerant cycle system 1 according to the embodiment of the present invention.
- the indoor unit 20a included in the refrigerant cycle system 1 shown in FIG. 1 is cut off from the main power supply, and the auxiliary power supply is supplied from the first power supply unit 30a included in the refrigerant cycle system 1 via the transmission line 40. Is shown for the case of being supplied.
- step S1 the indoor unit 20a starts various processes in a state where power is supplied from the power supply 21a.
- the indoor unit 20a can function in each configuration and perform air conditioning operation such as cooling or heating.
- step S2 the cutoff detection unit 27a of the indoor unit 20a determines whether or not the power supply from the power supply 21a is cut off. In step S2, when the interruption detection unit 27a does not detect the interruption of the power from the power supply 21a (S2: NO), the indoor unit 20a continues the air conditioning operation, and the interruption detection unit 27a continues the determination.
- the indoor unit 20a supplies the electric power of the indoor unit 20a from the power supply 21a to the first power supply unit. Switch to 30a. (Step S3). In other words, the indoor unit 20a starts supplying the auxiliary power supply from the first power supply unit 30a via the transmission line 40.
- step S4 the indoor unit 20a outputs a cutoff signal to the outdoor unit 10 via the transmission line 40.
- step S5 the outdoor control unit 15 of the outdoor unit 10 transmits an opening adjustment instruction of the expansion valve 24a to the indoor unit 20a.
- the opening degree adjustment instruction is an instruction such as fully opening the expansion valve 24a, fully closing it, increasing the opening degree, or decreasing the opening degree. As a result, it is possible to perform the oil return operation of the indoor unit 20a and the like.
- the outdoor control unit 15 of the outdoor unit 10 may transmit operation instructions for instructing various actuator operations to the indoor unit 20a.
- the indoor control unit 25a of the indoor unit 20a controls various actuators based on the operation instruction.
- step S6 the indoor control unit 25a of the indoor unit 20a adjusts the opening degree of the expansion valve 24a based on the opening degree adjusting instruction from the outdoor unit 10.
- step S7 the cutoff detection unit 27a of the indoor unit 20a determines whether or not the power from the power supply 21a is cut off. In other words, it is determined whether or not the power supply from the main power supply has been restored.
- step S7 when the interruption detection unit 27a detects the interruption of the power from the power supply 21a (S7: YES), the interruption detection unit 27a repeats the determination and continues the power supply from the first power supply unit 30a.
- step S7 when the interruption detection unit 27a does not detect the interruption of the power from the power supply 21a (S7: NO), in other words, when the power supply from the main power supply is restarted, the power supply source of the indoor unit 20a. Is switched from the first power supply unit 30a to the power supply 21a. (Step S8).
- the refrigerant cycle system 1 of the present embodiment includes a refrigerant cycle, a first power supply unit 30a, a second power supply unit 30b, a first transmission line 41, and a second transmission line 42.
- the refrigerant cycle includes an outdoor unit 10 as a heat source unit, a first indoor unit 20A as a first utilization unit group, and a second indoor unit 20B as a second utilization unit group.
- the first power supply unit 30a supplies auxiliary power to the utilization unit whose power is cut off when the power of each of the indoor units 20a, 20b, 20c of the first room unit group 20A is cut off.
- the first power supply unit 30a is a unit different from the outdoor unit 10.
- the second power supply unit 30b supplies the auxiliary power supply to the utilization unit whose power supply is cut off.
- the second power supply unit 20B is a unit different from the outdoor unit 10.
- the first transmission line 41 connects the outdoor unit 10 and the first power supply unit 30a.
- the second transmission line 42 connects the first power supply unit 30a and the second power supply unit 30b.
- the second power supply unit 30b is connected to the outdoor unit 10 via the first power supply unit 30a.
- the outdoor unit 10 the first power supply unit 30a, and the second power supply unit 30b are connected in series by the first transmission line 41 and the second transmission line 42.
- the transmission line connecting the outdoor unit and the power supply unit may become too long. In such a case, it takes time and effort to perform the wiring work, and the cost of the work becomes high.
- the outdoor unit 10 the first power supply unit 30a, and the second power supply unit 30b are connected in series by the first transmission line 41 and the second transmission line 42. Wiring work between each unit can be performed efficiently.
- Heat source unit 20A 1st utilization unit group 20B 2nd utilization unit group 20a, 20b, 20c, 20d, 20e, 20f Utilization unit 21a, 21b, 21c, 21d, 21e, 21f Power supply 30a 1st power supply unit 30b 2nd power supply unit 41 1st transmission line 42 2nd transmission line
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Abstract
Description
図1は、本実施形態に係る冷媒サイクルシステム1の構成の一例を示す概略図である。図1に示す冷媒サイクルシステム1は、主に、室外ユニット10と、複数の室内ユニットを含む第1室内ユニット群20Aと、複数の室内ユニットを含む第2室内ユニット群20Bと、第1給電ユニット30aと、第2給電ユニット30bと、伝送路40と、を備える。第1室内ユニット群20Aは、3つの室内ユニット20a、20b、20cを含んでいる。第2室内ユニット群20Bは、3つの室内ユニット20d、20e、20fを含んでいる。
以下に、冷媒サイクルシステム1に含まれる、室外ユニット10、室内ユニット20a、及び第1給電ユニット30aについて図2を参照して説明する。ここで、図2に示す冷媒サイクルシステムは、説明を簡略にするために、図1に示す冷媒サイクルシステム1の一部(破線に囲まれた部分)を拡大したものである。なお、本実施形態において、冷媒サイクルシステム1に含まれる各室内ユニット20a、20b、20c、20d、20e、20fは、図2に示す室内ユニット20aと同様の構成であって、冷媒サイクルシステム1に含まれる第2給電ユニット30bは、図2に示す第1給電ユニット30aと同様の構成であるものとして説明を行う。各構成は、具体例であって趣旨を逸脱しない範囲で適宜変更可能であるし、各ユニットは他のユニットと同様のものでなくてもよいことはもちろんである。
熱源ユニットとしての室外ユニット10は、図2に示すように、商用電源であって室外ユニット10の主電源である電源11に接続される。室外ユニット10は、室外熱交換器12と、室外ファン13と、圧縮機14と、室外制御部15と、通信部16と、を有する。室外熱交換器12は、冷媒配管2を流れる冷媒を凝縮または蒸発させて熱交換を行う。室外ファン13は、室外熱交換器12に送風して冷媒を熱交換させる。圧縮機14は、冷媒配管2の冷媒を圧縮及び循環させる。室外制御部15は、室外ユニット10と冷媒サイクルシステム1全体の制御を行う。通信部16は、他のユニットと通信を行う。
利用ユニットとしての室内ユニット20aは、商用電源であって室内ユニット20aの主電源である電源21aに接続される。室内ユニット20aは、室内熱交換器22aと、室内ファン23aと、膨張弁24aと、室内制御部25aと、通信部26aと、遮断検出部27aとを有する。室内熱交換器22aは、冷媒配管2を流れる冷媒を凝縮または蒸発させて熱交換を行う。室内ファン23aは、室内熱交換器22aに送風して冷媒を熱交換させる。膨張弁24aは、冷媒配管2を流れる冷媒の量を調整する。室内制御部25aは、室内ユニット20a全体の制御を行う。通信部26aは、他のユニットと通信を行う。遮断検出部27aは、電源21aからの電力の供給が遮断されたことを検出すると、室外ユニット10の室外制御部15に対して遮断信号を送信する。遮断信号は、主電源が遮断されたことを知らせるための信号と、主電源が遮断された室内ユニットの識別情報とを含む。室内ユニットの識別情報は、各室内ユニットに固有の情報である。室内ユニットそれぞれの識別情報は、室外ユニット10の室外制御部15に記憶されている。
第1給電ユニット30aは、商用電源であって第1給電ユニット30aの主電源である電源31aに接続される。第1給電ユニット30aは、給電ユニット30a全体の制御を行う給電制御部32aと、他のユニットと通信するための通信部33aと、を有する。
図1に示すように、伝送路40は、冷媒サイクル1に含まれる各ユニットを接続している。
図3は、本発明の実施の形態にかかる冷媒サイクルシステム1の処理の一例を示すフローチャートである。ここで示すフローチャートは、図1に示す、冷媒サイクルシステム1に含まれる室内ユニット20aが、主電源を遮断され、冷媒サイクルシステム1に含まれる第1給電ユニット30aから伝送路40を介して補助電源を供給される場合について示している。
本実施形態の冷媒サイクルシステム1は、冷媒サイクルと、第1給電ユニット30aと、第2給電ユニット30bと、第1伝送路41と、第2伝送路42と、を備える。冷媒サイクルは、熱源ユニットとしての室外ユニット10と、第1利用ユニット群としての第1室内ユニット20Aと、第2利用ユニット群としての第2室内ユニット20Bと、を含む。第1給電ユニット30aは、第1室内ユニット群20Aの各室内ユニット20a、20b、20cの電源が遮断された時に、電源が遮断された利用ユニットに対して補助電源の供給を行う。第1給電ユニット30aは、室外ユニット10とは別のユニットである。第2給電ユニット30bは、第2室内ユニット群20Bの各利用ユニット20d、20e、20fの電源が遮断された時に、電源が遮断された利用ユニットに対して補助電源の供給を行う。第2給電ユニット20Bは、室外ユニット10とは別のユニットである。第1伝送路41は、室外ユニット10と第1給電ユニット30aとを結ぶ。第2伝送路42は、第1給電ユニット30aと第2給電ユニット30bとを結ぶ。第2給電ユニット30bは、第1給電ユニット30aを介して室外ユニット10と結ばれている。
以上、本開示の実施形態を説明したが、特許請求の範囲に記載された本開示の趣旨及び範囲から逸脱することなく、形態や詳細の多様な変更が可能なことが理解されるであろう。
10 熱源ユニット
20A 第1利用ユニット群
20B 第2利用ユニット群
20a,20b,20c,20d,20e,20f 利用ユニット
21a,21b,21c,21d,21e,21f 電源
30a 第1給電ユニット
30b 第2給電ユニット
41 第1伝送路
42 第2伝送路
Claims (2)
- 熱源ユニット(10)と、第1利用ユニット群(20A)と、第2利用ユニット群(20B)と、を含む冷媒サイクルと、
前記第1利用ユニット群(20A)の各利用ユニット(20a、20b、20c)の電源(21a、21b、21c)が遮断された時に、電源が遮断された前記利用ユニットに対して補助電源の供給を行う、前記熱源ユニット(10)とは別の第1給電ユニット(30a)と、
前記第2利用ユニット群(20B)の各利用ユニット(20d、20e、20f)の電源(21d、21e、21f)が遮断された時に、電源が遮断された前記利用ユニットに対して補助電源の供給を行う、前記熱源ユニット(10)とは別の第2給電ユニット(30b)と、
前記熱源ユニット(10)と前記第1給電ユニット(30a)とを結ぶ第1伝送路(41)と、
前記第1給電ユニット(30a)と前記第2給電ユニット(30b)とを結ぶ第2伝送路(42)と、
を備え、
前記第2給電ユニット(30b)が、前記第1給電ユニット(30a)を介して前記熱源ユニット(10)と結ばれている、
冷媒サイクルシステム(1)。 - 前記第1伝送路(41)及び前記第2伝送路(42)によって、前記熱源ユニット(10)、前記第1給電ユニット(30a)、及び前記第2給電ユニット(30b)が、直列に結ばれている、
請求項1に記載の冷媒サイクルシステム(1)。
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CN202080021876.8A CN113574335B (zh) | 2019-03-19 | 2020-03-12 | 制冷剂循环系统 |
AU2020240873A AU2020240873B2 (en) | 2019-03-19 | 2020-03-12 | Refrigerant cycle system |
US17/440,389 US20220163240A1 (en) | 2019-03-19 | 2020-03-12 | Refrigerant cycle system |
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CN113574335B (zh) | 2023-07-07 |
AU2020240873B2 (en) | 2023-04-06 |
CN113574335A (zh) | 2021-10-29 |
EP3943842B1 (en) | 2023-10-18 |
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