AU2020240873A1 - Refrigerant cycle system - Google Patents
Refrigerant cycle system Download PDFInfo
- Publication number
- AU2020240873A1 AU2020240873A1 AU2020240873A AU2020240873A AU2020240873A1 AU 2020240873 A1 AU2020240873 A1 AU 2020240873A1 AU 2020240873 A AU2020240873 A AU 2020240873A AU 2020240873 A AU2020240873 A AU 2020240873A AU 2020240873 A1 AU2020240873 A1 AU 2020240873A1
- Authority
- AU
- Australia
- Prior art keywords
- unit
- power
- indoor
- power feed
- refrigerant cycle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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
- F24F11/88—Electrical aspects, e.g. circuits
-
- 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
-
- 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
-
- 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
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
- Saccharide Compounds (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present invention improves freedom for constructing a refrigerant cycle in a building or the like. A refrigerant cycle system (1) according to the present application is provided with a refrigerant cycle, a first power supply unit (30a), a second power supply unit (30b), a first transmission path (41), and a second transmission path (42). The power supply units supply auxiliary power to a usage unit disconnected from a power source. The first transmission path (41) links a heat source unit (10) and the first power supply unit (30a). The second transmission path (42) links the first power supply unit (30a) and the second power supply unit (30b). The second power supply unit (30b) is linked to the heat source unit (10) via the first power supply unit (30a).
Description
Title of Invention:
Technical Field
The present disclosure relates to a refrigerant cycle system.
Background Art
Conventionally, there is a refrigerant cycle including a plurality of indoor units and a
plurality of power feed units for one outdoor unit. As indicated in NPL1 ("Mitsubishi
Electric Building-air-conditioning Multi-air-conditioner System Design and Construction
Manual", Mitsubishi Electric Corporation, issued in July, 2013, p. 146, see the drawing), an
outdoor unit, indoor units, and power feed units are connected in parallel via communication
lines.
Summary of Invention
Technical Problem
The degree of freedom when a refrigerant cycle system is constructed in a building or
the like is increased.
Solution to Problem
A refrigerant cycle system according to a first aspect includes a refrigerant cycle, a
first power feed unit, a second power feed 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. When a power source of each utilization unit of
the first utilization unit group has been interrupted, the first power feed unit feeds auxiliary
power to the utilization unit of which the power source has been interrupted. The first power
feed unit is a unit that differs from the heat source unit. When a power source of each
utilization unit of the second utilization unit group has been interrupted, the second power
feed unit feeds auxiliary power to the utilization unit of which the power source has been
interrupted. The second power feed unit is a unit that differs from the heat source unit. The
first transmission line connects the heat source unit and the first power feed unit to each other. The second transmission line connects the first power feed unit and the second power feed unit to each other. The second power feed unit is connected to the heat source unit via the first power feed unit.
Thus, the degree of freedom when the refrigerant cycle system is constructed in a
building or the like is increased.
A refrigerant cycle system according to a second aspect is the system according to the
first aspect in which the heat source unit, the first power feed unit, and the second power feed
unit are connected in series by the first transmission line and the second transmission line.
Brief Description of Drawings
[Fig. 1] Fig. 1 is a schematic diagram illustrating a configuration of a refrigerant cycle
system.
[Fig. 2] Fig. 2 is a schematic diagram illustrating the configuration of the refrigerant
cycle system.
[Fig. 3] Fig. 3 is a flowchart presenting a flow of processing of the refrigerant cycle
system.
Description of Embodiments
A refrigerant cycle system 1 according to an embodiment of the present disclosure is
described below. The embodiment described below is a specific example, and it is not
intended that the embodiment limits the technical scope, and the embodiment may be
properly modified in a range not departing from the gist.
(1) General Configuration
Fig. 1 is a schematic diagram illustrating an example of a configuration of the
refrigerant cycle system 1 according to the present embodiment. The refrigerant cycle system
1 illustrated 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, a first power feed unit 30a, a second power feed unit 30b, and a transmission
line 40. The first indoor unit group 20A includes three indoor units 20a, 20b, and 20c. The
second indoor unit group 20B includes three indoor units 20d, 20e, and 20f.
The outdoor unit 10 and the respective indoor units 20a, 20b, 20c, 20d, 20e, and 20f
included in the refrigerant cycle system 1 are connected to one another by a refrigerant pipe 2
(see Fig. 2) to constitute a refrigerant cycle. The outdoor unit 10, the respective indoor units
20a, 20b, 20c, 20d, 20e, and 20f, the first power feed unit 30a, and the second power feed
unit 30b included in the refrigerant cycle system 1 are connected to one another by the
transmission line 40. Thus, the respective units can communicate with one another.
The number of indoor units connectable to one outdoor unit is determined depending
on the capacity, performance, and the like of the outdoor unit. The number of indoor units
connectable to the outdoor unit 10 according to the present embodiment is, for example, 16;
however, the number is not limited thereto. The arrangement of the power feed units is not
limited to the arrangement illustrated in Fig. 1. The number of power feed units is not limited
to the number in the arrangement. According to the present disclosure, it is sufficient that the
refrigerant cycle system 1 includes at least one outdoor unit, one or more indoor unit groups
each including one or more indoor units, and one or more power feed units.
The refrigerant pipe 2 is branched using a branch pipe and connects the outdoor unit
10 and the respective indoor units 20a, 20b, 20c, 20d, 20e, and 20f to one another. Refrigerant
flows in the refrigerant pipe 2. In this case, the type of refrigerant is not limited.
(2) Specific Configuration of Refrigerant Cycle System 1
The outdoor unit 10, the indoor unit 20a, and the first power feed unit 30a included in
the refrigerant cycle system 1 are described below with reference to Fig. 2. In this case, the
refrigerant cycle system illustrated in Fig. 2 is part illustrated in an enlarged manner (part
surrounded by a broken line) of the refrigerant cycle system 1 illustrated in Fig. 1 for the
convenience of description. Description is given according to the present embodiment based
on an assumption that the respective indoor units 20b, 20c, 20d, 20e, and 20f included in the
refrigerant cycle system 1 have configurations similar to that of the indoor unit 20a illustrated
in Fig. 2, and the second power feed unit 30b included in the refrigerant cycle system 1 has a
configuration similar to that of the first power feed unit 30a illustrated in Fig. 2. Each
configuration is a specific example and of course may be properly modified within a scope not departing from the gist, and each unit of course may differ from the other units.
(2-1) Outdoor Unit 10
As illustrated in Fig. 2, the outdoor unit 10 serving as a heat source unit is connected
to a power source 11 that is a commercial power source and that serves as 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 condenses or evaporates refrigerant flowing through the
refrigerant pipe 2 to perform heat exchange. The outdoor fan 13 sends air to the outdoor heat
exchanger 12 to cause the refrigerant to exchange heat with air. The compressor 14
compresses and circulates the refrigerant in the refrigerant pipe 2. The outdoor control unit 15
controls the entire outdoor unit 10 and refrigerant cycle system 1. The communication unit 16
communicates with the other units.
The respective configurations included in the outdoor unit 10 function when power is
fed from the power source 11 through a power source line.
(2-2) Indoor Unit 20a
The indoor unit 20a serving as a utilization unit is connected to a power source 21a
that is a commercial power source and that serves as 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 an
interruption detection unit 27a. The indoor heat exchanger 22a condenses or evaporates
refrigerant flowing through the refrigerant pipe 2 to perform heat exchange. The indoor fan
23a sends air to the indoor heat exchanger 22a to cause the refrigerant to exchange heat with
air. 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 the other units. When detecting that the feed of power from the
power source 21a has been interrupted, the interruption detection unit 27a transmits an
interruption signal to the outdoor control unit 15 of the outdoor unit 10. The interruption
signal includes a signal for notifying that the main power source has been interrupted, and identification information on the indoor unit of which the main power source has been interrupted. The identification information on the indoor unit is information unique to each indoor unit. The identification information on each of the indoor units is stored in the outdoor control unit 15 of the outdoor unit 10.
In a case where the feed of power from the power source 21a has not been interrupted, the respective configurations included in the indoor unit 20a function when power is fed from
the power source 21a through a power source line.
(2-3) First Power Feed Unit 30a
The first power feed unit 30a is connected to a power source 31a that is a commercial
power source and that serves as a main power source of the first power feed unit 30a. The
first power feed unit 30a includes a power feed control unit 32a that controls the entire power
feed unit 30a, and a communication unit 33a that communicates with the other units.
The respective configurations included in the first power feed unit 30a function when
power is fed from the power source 31a through a power source line.
The number of indoor units to which a power feed unit can simultaneously feed power
is determined in advance depending on the performance and the like of the power feed unit.
Note that power that is fed from the power feed unit to an indoor unit is used as auxiliary
power.
The auxiliary power is mainly used to adjust the opening degree of the expansion
valve of the indoor unit. In addition, the auxiliary power may be used for various actuator
operations in the indoor unit. Examples of the actuator operations include an operation of
closing a grill panel included in the indoor unit, and an operation of collecting various pieces
of information relating to the indoor unit. The actuator operations that are performed using
the auxiliary power are operations set in advance.
The power feed unit that feeds the auxiliary power to each indoor unit is set in
advance. When the feed of power of the main power source to each indoor unit has been
interrupted, the set power feed unit feeds auxiliary power.
For example, in Fig. 1, the first power feed unit 30a feeds auxiliary power to the indoor units 20a, 20b, and 20c. The second power feed unit 30b feeds auxiliary power to the indoor units 20d, 20e, and 20f. Processing of a power feed unit to feed auxiliary power to an indoor unit will be described in detail later.
(2-4) Transmission Line 40
As illustrated in Fig. 1, the transmission line 40 connects the respective units included
in the refrigerant cycle system 1.
The transmission line 40 is normally used mainly for communication and enables
communication among the respective communication units. In addition, the transmission line
40 has a role as a power source line for feeding auxiliary power from a power feed unit to an
indoor unit in a case where the main power source of the indoor unit has been interrupted. In
other words, the transmission line 40 is used for both transmission and power feed.
In the present embodiment, as illustrated in Fig. 1, 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 in series the outdoor unit 10 and the first power
feed unit 30a.
The second transmission line 42 connects in series the first power feed unit 30a and
the second power feed unit 30b. Specifically, the second transmission line 42 includes
transmission lines 42a, 42b, 42c, and 42d that connect the respective units, and connect the
first power feed unit 30a, the respective indoor units 20a, 20b, and 20c included in the first
indoor unit group 20A, and the second power feed unit 30b. In this case, it is sufficient that
the second transmission line 42 connects in series the first power feed unit 30a and the second
power feed unit 30b, and the connection form of the respective indoor units 20a, 20b, and 20c
included in the first indoor unit group 20A is not limited. The indoor units 20a, 20b, and 20c
are connected, for example, in sequential order.
The third transmission line 43 connects in series the second power feed unit 30b and a
third power feed unit (not illustrated). Specifically, the third transmission line 43 includes
transmission lines 43a, 43b, 43c, and 43d that connect the respective units, and connects the
second power feed unit 30b, the respective indoor units 20d, 20e, and 20f included in the second indoor unit group 20B, and the third power feed unit. In this case, it is sufficient that the third transmission line 43 connects in series the second power feed unit 30b and the third power feed unit, and the connection form of the respective indoor units 20d, 20e, and 20f included in the second indoor unit group 20B is not limited.
(3) Processing of Refrigerant Cycle System 1
Fig. 3 is a flowchart illustrating an example of processing of the refrigerant cycle
system 1 according to the embodiment of the present disclosure. The flowchart presents a
case where the main power source to the indoor unit 20a included in the refrigerant cycle
system 1 illustrated in Fig. 1 is interrupted and auxiliary power is fed to the indoor unit 20a
from the first power feed unit 30a included in the refrigerant cycle system 1 through the
transmission line 40.
First, in step Sl, the indoor unit 20a starts various types of processing in a state fed
with power from the power source 21a. The indoor unit 20a in this state causes the respective
configurations to function and can perform an air conditioning operation such as cooling or
heating.
In step S2, the interruption detection unit 27a of the indoor unit 20a determines
whether or not the feed of power from the power source 21a has been interrupted. In step S2,
when the interruption detection unit 27a does not detect an interruption of power from the
power source 21a (S2: NO), the indoor unit 20a continues the air conditioning operation and
the interruption detection unit 27a continues the determination.
In contrast, in step S2, when the interruption detection unit 27a detects an interruption
of power from the power source 21a (S2: YES), the indoor unit 20a switches the feed source
of power for the indoor unit 20a from the power source 21a to the first power feed unit 30a
(step S3). In other words, the indoor unit 20a starts feed of auxiliary power from the first
power feed unit 30a through the transmission line 40.
In step S4, the indoor unit 20a outputs the interruption signal to the outdoor unit 10
through the transmission line 40.
In step S5, the outdoor control unit 15 of the outdoor unit 10 transmits an opening degree adjustment instruction of the expansion valve 24a to the indoor unit 20a. The opening degree adjustment instruction is an instruction for completely opening the expansion valve
24a, for completely closing the expansion valve 24a, for increasing the opening degree, or for
decreasing the opening degree. Accordingly, an oil return operation of the indoor unit 20a or
the like can be performed. 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 the various types of actuators based on
the operation instructions.
In 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 adjustment instruction from
the outdoor unit 10.
In step S7, the interruption detection unit 27a of the indoor unit 20a determines
whether or not the power from the power source 21a has been interrupted. In other words, it
is determined whether or not power feed from the main power source has been recovered. In
step S7, when the interruption detection unit 27a detects an interruption of power from the
power source 21a (S7: YES), the interruption detection unit 27a repeats the determination and
continues the power feed from the first power feed unit 30a.
In contrast, in step S7, when the interruption detection unit 27a does not detect an
interruption of power from the power source 21a (S7: NO), in other words, when the power
feed from the main power source has been resumed, the power feed source of the indoor unit
20a is switched from the first power feed unit 30a to the power source 21a (step S8).
With the above-described processing, the processing of the feed of the auxiliary power
to the indoor unit 20a from the first power feed unit 30a through the transmission line 40 in
the case where the main power source of the indoor unit 20a has been interrupted is ended.
(4) Features
The refrigerant cycle system 1 according to the present embodiment includes the
refrigerant cycle, the first power feed unit 30a, the second power feed unit 30b, the first
transmission line 41, and the second transmission line 42. The refrigerant cycle includes the outdoor unit 10 serving as the heat source unit, the first indoor unit group 20A serving as a first utilization unit group, and the second indoor unit group 20B serving as a second utilization unit group. When the power source of each of the indoor units 20a, 20b, and 20c of the first indoor unit group 20A has been interrupted, the first power feed unit 30a feeds auxiliary power to the utilization unit of which the power source has been interrupted. The first power feed unit 30a is a unit that differs from the outdoor unit 10. When the power source of each of the utilization units 20d, 20e, and 20f of the second indoor unit group 20B has been interrupted, the second power feed unit 30b feeds auxiliary power to the utilization unit of which the power source has been interrupted. The second power feed unit 30b is a unit that differs from the outdoor unit 10. The first transmission line 41 connects the outdoor unit
10 and the first power feed unit 30a to each other. The second transmission line 42 connects
the first power feed unit 30a and the second power feed unit 30b to each other. The second
power feed unit 30b is connected to the outdoor unit 10 via the first power feed unit 30a.
Moreover, in the refrigerant cycle system 1 according to the present embodiment, the
outdoor unit 10, the first power feed unit 30a, and the second power feed unit 30b are
connected in series by the first transmission line 41 and the second transmission line 42.
When the outdoor unit and the power feed unit can be connected only in parallel, the
length of the transmission line that connects the outdoor unit and the power feed unit to each
other may be too long. In such a case, the construction of wiring takes time and effort,
leading to an increase in the cost for the construction.
In the refrigerant cycle system 1 according to the present embodiment, the outdoor
unit 10, the first power feed unit 30a, and the second power feed unit 30b are connected in
series by the first transmission line 41 and the second transmission line 42. Hence, the
construction of wiring among the respective units can be efficiently performed.
Thus, the outdoor unit and the power feed unit can be disposed at locations farther
than those of related art. Accordingly, the degree of freedom when the refrigerant cycle
system is constructed in a building or the like is increased.
(5)
The embodiment of the present disclosure has been described above, and it is
understood that the embodiment and details can be modified in various ways without
departing from the gist and scope of the present disclosure described in the claims.
Reference Signs List
1 refrigerant cycle system
10 heatsourceunit
20A first utilization unit group
20B second utilization unit group
20a, 20b, 20c, 20d, 20e, 20f utilization unit
21a,21b,21c,21d,21e,21f powersource
30a first power feed unit
30b second power feed unit
41 first transmission line
42 second transmission line
Citation List
Non Patent Literature
NPL 1: "Mitsubishi Electric Building-air-conditioning Multi-air-conditioner System
Design and Construction Manual", Mitsubishi Electric Corporation, issued in July, 2013, p.
146
Claims (2)
- [Claim 1]A refrigerant cycle system (1) comprising:a refrigerant cycle including a heat source unit (10), a first utilization unit group(20A), and a second utilization unit group (20B);a first power feed unit (30a) that differs from the heat source unit (10), and when apower source (21a, 21b, 21c) of each utilization unit (20a, 20b, 20c) of the first utilizationunit group (20A) has been interrupted, that feeds auxiliary power to the utilization unit ofwhich the power source has been interrupted;a second power feed unit (30b) that differs from the heat source unit (10), and when apower source (21d, 21e, 21f) of each utilization unit (20d, 20e, 20f) of the second utilizationunit group (20B) has been interrupted, that feeds auxiliary power to the utilization unit ofwhich the power source has been interrupted;a first transmission line (41) that connects the heat source unit (10) and the first powerfeed unit (30a) to each other; anda second transmission line (42) that connects the first power feed unit (30a) and thesecond power feed unit (30b) to each other,wherein the second power feed unit (30b) is connected to the heat source unit (10) viathe first power feed unit (30a).
- [Claim 2]The refrigerant cycle system (1) according to Claim 1, wherein the heat source unit(10), the first power feed unit (30a), and the second power feed unit (30b) are connected inseries by the first transmission line (41) and the second transmission line (42).10 11 OUTDOOR U41 31a 20A 21a 21b 21c 30a 20a 20b 20c 42a 42b POWER (42) INDOOR (42) INDOOR INDOOR FEED U U U U 40 1/320B 21f 21e 21d 31b 20f 20e 20d 30bINDOOR INDOOR INDOOR POWER U U U FEED UFIG. 111 21a 10 2 20a13 12 22a 23a 31a 24a 14 30a 2/3POWER FEED INDOOR 25a 32a CONTROL UNIT CONTROL UNIT 1 OUTDOOR 15 CONTROL UNIT COMMUNICATION COMMUNICATION 26a 33a UNIT UNIT COMMUNICATION 16 UNIT INTERRUPTION 27a DETECTION UNIT40 41FIG. 2
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019051178A JP7008658B2 (en) | 2019-03-19 | 2019-03-19 | Refrigerant cycle system |
| JP2019-051178 | 2019-03-19 | ||
| PCT/JP2020/010923 WO2020189527A1 (en) | 2019-03-19 | 2020-03-12 | Refrigerant cycle system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2020240873A1 true AU2020240873A1 (en) | 2021-11-11 |
| AU2020240873B2 AU2020240873B2 (en) | 2023-04-06 |
Family
ID=72521007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2020240873A Active AU2020240873B2 (en) | 2019-03-19 | 2020-03-12 | Refrigerant cycle system |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20220163240A1 (en) |
| EP (1) | EP3943842B1 (en) |
| JP (1) | JP7008658B2 (en) |
| CN (1) | CN113574335B (en) |
| AU (1) | AU2020240873B2 (en) |
| ES (1) | ES2967040T3 (en) |
| WO (1) | WO2020189527A1 (en) |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001182992A (en) * | 1999-12-22 | 2001-07-06 | Matsushita Refrig Co Ltd | Controller for air conditioner |
| JP2005121333A (en) * | 2003-10-20 | 2005-05-12 | Hitachi Ltd | Air conditioner |
| KR100602219B1 (en) * | 2004-11-29 | 2006-07-19 | 엘지전자 주식회사 | Multi-air conditioner for simultaneously heating and cooling to supplying emergency power resources |
| JP2008249264A (en) | 2007-03-30 | 2008-10-16 | Osaka Gas Co Ltd | Air conditioner |
| KR101028094B1 (en) * | 2009-02-12 | 2011-04-08 | 엘지전자 주식회사 | Air conditioner and controlling method thereof |
| EP2309213B1 (en) * | 2009-10-12 | 2013-05-01 | LG Electronics Inc. | Air conditioning system and method for controlling operation thereof |
| JP6109296B2 (en) * | 2013-03-19 | 2017-04-05 | 三菱電機株式会社 | Power converter and refrigeration air conditioner |
| JP5984732B2 (en) * | 2013-04-09 | 2016-09-06 | 三菱電機株式会社 | Air conditioner |
| US20230118671A1 (en) * | 2013-09-25 | 2023-04-20 | Gree Electric Appliances, Inc. Of Zhuhai | Photovoltaic air conditioning system |
| CN104848468B (en) * | 2014-02-18 | 2018-03-06 | 珠海格力电器股份有限公司 | The energy processing method and system of multi source contribution air-conditioning system |
| JP2016109363A (en) | 2014-12-08 | 2016-06-20 | 三菱電機株式会社 | Air conditioner |
| CN106403142B (en) * | 2015-07-31 | 2019-05-24 | 青岛海尔空调电子有限公司 | Multi-online air-conditioning system indoor unit abnormal power-down guard method |
| EP3382294B1 (en) * | 2015-11-27 | 2021-07-14 | Toshiba Carrier Corporation | Air conditioning system |
| EP3176516B1 (en) * | 2015-12-01 | 2018-03-21 | Toshiba Carrier Corporation | Air-conditioning apparatus |
| EP3517851B1 (en) * | 2016-09-26 | 2021-09-15 | Toshiba Carrier Corporation | Air conditioning device |
| CN106504459A (en) * | 2016-10-31 | 2017-03-15 | 国网山东省电力公司济南供电公司 | A kind of unmanned communications equipment room fire early-warning system |
| CN114777285A (en) * | 2018-05-21 | 2022-07-22 | 三菱电机株式会社 | Air conditioner and packaging set for air conditioner |
| JP7477738B2 (en) * | 2019-03-19 | 2024-05-02 | ダイキン工業株式会社 | Refrigeration Cycle Equipment |
| CN111174391A (en) * | 2020-03-12 | 2020-05-19 | 珠海格力电器股份有限公司 | Emergency power supply protection device for indoor unit of multi-split system |
-
2019
- 2019-03-19 JP JP2019051178A patent/JP7008658B2/en active Active
-
2020
- 2020-03-12 WO PCT/JP2020/010923 patent/WO2020189527A1/en unknown
- 2020-03-12 CN CN202080021876.8A patent/CN113574335B/en active Active
- 2020-03-12 EP EP20774020.0A patent/EP3943842B1/en active Active
- 2020-03-12 ES ES20774020T patent/ES2967040T3/en active Active
- 2020-03-12 US US17/440,389 patent/US20220163240A1/en active Pending
- 2020-03-12 AU AU2020240873A patent/AU2020240873B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP7008658B2 (en) | 2022-01-25 |
| EP3943842A4 (en) | 2022-04-20 |
| WO2020189527A1 (en) | 2020-09-24 |
| ES2967040T3 (en) | 2024-04-25 |
| CN113574335B (en) | 2023-07-07 |
| AU2020240873B2 (en) | 2023-04-06 |
| CN113574335A (en) | 2021-10-29 |
| EP3943842B1 (en) | 2023-10-18 |
| EP3943842A1 (en) | 2022-01-26 |
| US20220163240A1 (en) | 2022-05-26 |
| JP2020153551A (en) | 2020-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5276630A (en) | Self configuring controller | |
| EP2413057B1 (en) | Refrigerating/air-conditioning device comprising an information conveyance system | |
| US20160363338A1 (en) | Air conditioning system | |
| EP2102568A1 (en) | Air-conditioning algorithm for water terminal free cooling | |
| EP1614977B1 (en) | Air-conditioning system | |
| CN105276774B (en) | The control method of air-conditioning system and air-conditioning system | |
| JP4214198B2 (en) | Air conditioner | |
| AU2020240873B2 (en) | Refrigerant cycle system | |
| JP5371583B2 (en) | air conditioner | |
| EP3978817B1 (en) | Air-conditioning system | |
| JPH1114123A (en) | Air conditioner | |
| CN110243030A (en) | Air-conditioning device | |
| CN1952509B (en) | Air conditioner set control system and operation method thereof | |
| JP2020153552A (en) | Refrigerant cycle system | |
| CN219550687U (en) | Heat exchanger and air conditioner | |
| CN113692518B (en) | Air conditioner | |
| EP3952226A1 (en) | Network system | |
| EP4219201A1 (en) | Multi-temperature air conditioning system, control method thereof and transport refrigeration vehicle | |
| JP3851005B2 (en) | Air conditioner | |
| CN113915683A (en) | Air conditioner indoor unit, air conditioner and air conditioner control method and device | |
| KR101500728B1 (en) | Cooling and heating apparatus | |
| KR101174605B1 (en) | air conditioner | |
| KR20160021632A (en) | Air conditioner and Controlling method therefor | |
| JPH0533982A (en) | Pipe, wiring connection controller for air conditioner | |
| CN104236001A (en) | Air-conditioning control system and air-conditioning control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |