CN106568167B - Air-conditioning system and its control method - Google Patents
Air-conditioning system and its control method Download PDFInfo
- Publication number
- CN106568167B CN106568167B CN201610957244.8A CN201610957244A CN106568167B CN 106568167 B CN106568167 B CN 106568167B CN 201610957244 A CN201610957244 A CN 201610957244A CN 106568167 B CN106568167 B CN 106568167B
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- Prior art keywords
- air conditioner
- indoor unit
- outdoor unit
- air
- unit
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
-
- 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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
- F25B41/26—Disposition of valves, e.g. of on-off valves or flow control valves of fluid flow reversing 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
- F25B49/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
- F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
- F25B2313/02332—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements during defrosting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel 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
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
- F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
- F25B2313/02532—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements during defrosting
-
- 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
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- 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)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air-conditioning system and control methods.The air-conditioning system includes multiple air conditioners, each air conditioner includes outdoor unit and indoor unit, the air-conditioning system further includes changeover module, connect to form refrigerant circulation circuit with another outdoor unit of the air conditioner for switching to the indoor unit in any air conditioner.Air-conditioning system provided by the invention is provided with changeover module, when wherein an outdoor unit of the air conditioner breaks down, the indoor unit of failure air conditioner can be switched to and connect to form refrigerant circulation circuit with other outdoor unit of the air conditioner, other outdoor unit of the air conditioner are borrowed to maintain the normal operation of indoor unit, to not influence the normal operation of indoor unit in the stage repaired on outdoor unit, meet the air conditioning requirements of user.
Description
Technical field
The present invention relates to a kind of air-conditioning technical field, relate more specifically to a kind of air-conditioning system and its control method.
Background technique
Existing domestic air conditioner can not normally start operation when cold draining matchmaker, system component failure occurs in its outdoor unit, therefore
Barrier detection and maintenance needs certain time, in the meantime user can not normal use air conditioner adjust room temperature, influence user
Experience.
Summary of the invention
In view of this, an object of the present invention is to provide one kind not to be influenced to meet room when wherein an outdoor unit breaks down
The air-conditioning system and its control method of interior air conditioning.
In a first aspect, providing a kind of air-conditioning system.
A kind of air-conditioning system, including multiple air conditioners, each air conditioner include outdoor unit and indoor unit, the air-conditioning
System further includes changeover module, is connected for switching to the indoor unit in any air conditioner with another outdoor unit of the air conditioner
It connects to form refrigerant circulation circuit；
Wherein,
The changeover module be used for the indoor unit in any air conditioner being connect with the outdoor unit of the air conditioner and
Switch between being connect with another outdoor unit of the air conditioner；Alternatively,
The changeover module is used for any two outdoor unit of the air conditioner and indoor unit exchange connection；Alternatively,
The changeover module is used to switching to the indoor unit in any air conditioner into the indoor unit with another air conditioner
In parallel or another air conditioner of substitution indoor unit.
Preferably, the air-conditioning system includes the first air conditioner and the second air conditioner, and first air conditioner includes first
Outdoor unit and the first indoor unit, second air conditioner include the second outdoor unit and the second indoor unit, and the changeover module is used for
The air-conditioning system is switched between the first connection status and the second connection status；
First connection status be first outdoor unit connect with first indoor unit, second outdoor unit and
The second indoor unit connection；
Second connection status be first outdoor unit connect with second indoor unit, second outdoor unit and
The first indoor unit connection.
Preferably, the changeover module includes the first four-way valve and the second four-way valve, first outdoor unit, described first
Indoor unit, second outdoor unit, second indoor unit all have two refrigerant entrances, and four of first four-way valve
Interface is separately connected first outdoor unit, first indoor unit, second outdoor unit and second indoor unit
One of refrigerant entrance, four interfaces of second four-way valve are separately connected first outdoor unit, first Room
Another refrigerant entrance of interior machine, second outdoor unit and second indoor unit.
Preferably, the indoor unit of the multiple air conditioner is respectively arranged in the different interior spaces or the same interior space
Different zones in.
Second aspect provides a kind of control method of air-conditioning system.
A kind of control method of air-conditioning system as described above, when a wherein outdoor unit of the air conditioner failure, described in control
The indoor unit of the air conditioner is connect to form refrigerant circulation circuit by changeover module with another outdoor unit of the air conditioner.
Preferably, after the outdoor unit of air conditioner fault restores normal, the changeover module is controlled by the room of the air conditioner
Interior machine-cut is shifted to be connect with the normal outdoor unit of recovery.
Preferably, the air-conditioning system includes the first air conditioner and the second air conditioner, when the event of the first outdoor unit of the air conditioner
When barrier, whether in operating status the second air conditioner is judged, if it is, controlling the changeover module for first air conditioner
Indoor unit it is in parallel with the indoor unit of second air conditioner, otherwise control the changeover module for the room of first air conditioner
Interior machine substitutes the indoor unit of second air conditioner.
Preferably, the indoor unit of first air conditioner is substituted second air conditioner by the control changeover module
Indoor unit further comprise connecting the indoor unit of second air conditioner with first outdoor unit of the air conditioner.
Preferably, it when a wherein outdoor unit of the air conditioner failure, searches and is in off-mode in the air-conditioning system
Air conditioner, will in off-mode air conditioner open, and control the changeover module by the indoor unit of the air conditioner of failure with
The outdoor unit of the air conditioner just opened connects to form refrigerant circulation circuit.
The third aspect provides a kind of control method of air-conditioning system.
A kind of control method of air-conditioning system as described above, which is characterized in that when wherein an outdoor unit of the air conditioner carries out
When defrosting, the air conditioner for being in off-mode in the air-conditioning system is searched, the air conditioner in off-mode is opened, and controls
It makes the changeover module and the air conditioner of defrosting is exchanged into connection with the outdoor unit of the air conditioner just opened and indoor unit.
Preferably, the indoor unit of the multiple air conditioner is respectively arranged in the different interior spaces or the same interior space
Different zones in.
Air-conditioning system provided by the invention is provided with changeover module, when wherein an outdoor unit of the air conditioner breaks down,
The indoor unit of failure air conditioner can be switched to and connect to form refrigerant circulation circuit with other outdoor unit of the air conditioner, borrow other
Outdoor unit of the air conditioner maintains the normal operation of indoor unit, thus not influencing indoor unit to the stage that outdoor unit repairs
Normal operation, meet the air conditioning requirements of user.
The control method of above-mentioned air-conditioning system provided by the invention, can when wherein an outdoor unit of the air conditioner breaks down
The indoor unit of failure air conditioner is switched to and connect to form refrigerant circulation circuit with other outdoor unit of the air conditioner, borrows other skies
The outdoor unit of device is adjusted to maintain the normal operation of indoor unit, thus not influencing indoor unit to the stage that outdoor unit repairs
It operates normally, meets the air conditioning requirements of user.
Another control method of above-mentioned air-conditioning system provided by the invention can enter defrosting state by an air conditioner wherein
When control changeover module the air conditioner exchange into connection with another outdoor unit of the air conditioner and indoor unit, so that the shape that defrosts will be in
The indoor unit of the air conditioner of state borrows other outdoor units to indoor heating, improves the comfort of user.
Detailed description of the invention
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings:
The air-conditioning system that Fig. 1 shows specific embodiment of the invention offer is in the schematic diagram of normal heating state；
Schematic diagram after breaking down Fig. 2 shows the first outdoor unit of air-conditioning system that the specific embodiment of the invention provides；
Schematic diagram when the first outdoor unit of air-conditioning system that Fig. 3 shows specific embodiment of the invention offer is defrosted.
In figure, the 11, first outdoor unit；111, the first outdoor heat exchanger；112, the first compressor；113, third four-way valve；
114, the first electric expansion valve；12, the first indoor unit；121, the first indoor heat exchanger；21, the second outdoor unit；211, second Room
External heat exchanger；212, the second compressor；213, the 4th four-way valve；214, the second electric expansion valve；22, the second indoor unit；221,
Second indoor heat exchanger；3, changeover module；31, the first four-way valve；32, the second four-way valve.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
Text is detailed to describe some specific detail sections in datail description of the invention.Do not have for a person skilled in the art
The present invention can also be understood completely in the description of these detail sections.In order to avoid obscuring essence of the invention, well known method, mistake
There is no narrations in detail for journey, process, element.
In addition, it should be understood by one skilled in the art that provided herein attached drawing be provided to explanation purpose, and
What attached drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, be " including but not limited to " contains
Justice.
In the description of the present invention, it is to be understood that, term " first ", " second " etc. are used for description purposes only, without
It can be interpreted as indication or suggestion relative importance.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " multiple "
It is two or more.
The present invention provides a kind of air-conditioning systems comprising multiple air conditioners, each air conditioner include outdoor unit and
Indoor unit, under normal circumstances, each outdoor unit of the air conditioner connect to form refrigerant circulation circuit with indoor unit.The air-conditioning system
Further including changeover module, connecting shape with another outdoor unit of the air conditioner for switching to the indoor unit in any air conditioner
At refrigerant circulation circuit, thus, it, can be by the indoor machine-cut of failure air conditioner when wherein an outdoor unit of the air conditioner breaks down
It shifts to and connect to form refrigerant circulation circuit with other outdoor unit of the air conditioner, borrow other outdoor unit of the air conditioner to remain indoor
The normal operation of machine meets the sky of user to not influence the normal operation of indoor unit in the stage repaired on outdoor unit
Gas regulatory demand.
Further, after the outdoor unit of failure restores normal, outdoor unit is switched to and is restored again by changeover module
Outdoor unit connection after normal.That is, the indoor unit in any air conditioner can be the room of the air conditioner by the changeover module
Outer machine connects and switches between connecting with another outdoor unit of the air conditioner, it is easy to accomplish automatically controls.
It is illustrated by taking the first air conditioner and the second air conditioner as an example below, when there are two the above period control methods for air conditioner
It is similar.
Wherein, the indoor unit in any air conditioner is switched to and connect to form refrigerant with another outdoor unit of the air conditioner
The indoor unit of first air conditioner is switched to and connect to form refrigerant circulation circuit with the second outdoor unit of the air conditioner by circulation loop
It may include two ways, one is the indoor unit in the first air conditioner is switched to, example in parallel with the indoor unit of the second air conditioner
Such as, it when the second air conditioner is also at operating status, switches in parallel with the indoor unit of the second air conditioner, second can not be influenced
The normal operation of air conditioner；Another way is the indoor unit that the indoor unit in the first air conditioner is substituted to the second air conditioner, example
Such as, when the second air conditioner is not on operating status at the beginning, another air conditioner is opened, while with the room of the first air conditioner
Interior machine substitutes the indoor unit of the second air conditioner, so as to guarantee heat exchange efficiency.
Further, herein with the indoor unit of the first air conditioner substitute the second air conditioner indoor unit can there are two types of sides
Formula, a kind of mode is directly to disconnect the indoor unit of the second air conditioner and outdoor unit, and by the indoor unit of the first air conditioner and the
The outdoor unit of two air conditioner connects to form refrigerant circulation circuit, and another way is by the room of the first air conditioner and the second air conditioner
Interior machine and outdoor unit exchange connection, that is, the indoor unit of the first air conditioner is connect with the second outdoor unit of the air conditioner, the second air conditioner
Outdoor unit connect with the indoor unit of the first air conditioner.Which can also the use when outdoor unit is defrosted.For example, when first
When outdoor unit of the air conditioner is defrosted, the indoor unit and outdoor unit of the first air conditioner and the second air conditioner are exchanged and connected, and
The second air conditioner is opened, guarantees that the indoor unit of the first air conditioner still is able to maintain heating.
It is further preferred that the indoor unit of multiple air conditioners is respectively arranged in the different interior spaces, or at one
It is respectively arranged in the very big interior space in different regions, thus after changeover module switches over the position of outdoor unit
The influence very little that room air is adjusted.For example, the indoor unit of the first air conditioner is set to parlor, the indoor unit of the second air conditioner
It is set to bedroom, in this way, the first air conditioner is opened, when the first outdoor unit of the air conditioner is removed when user is at parlor
When white, the indoor unit of the first air conditioner is connect with the second outdoor unit of the air conditioner, by the first outdoor unit of the air conditioner and second
The indoor unit of air conditioner connects, then parlor air conditioner indoor unit still maintains heating, and the indoor air conditioner indoor unit refrigeration that crouches, to visitor
The temperature in the Room influences little.Further, when the room to three or more configures air conditioner, if one of air conditioner
The indoor unit of the air conditioner, then connect, further by outdoor unit defrosting with the outdoor unit of the air conditioner in the room farthest apart from its
Reduce influence of the defrosting to temperature in room.
Wherein, the specific structure of changeover module is unlimited, can be realized handoff functionality, such as can pass through multiple switch valve
And connecting line is realized.
Further, the control method of the air-conditioning system is provided, when a wherein outdoor unit of the air conditioner failure, control is cut
It changes component and connect to form refrigerant circulation circuit with another outdoor unit of the air conditioner by the indoor unit of the air conditioner, borrow other air-conditionings
The outdoor unit of device maintains the normal operation of indoor unit, to not influence indoor unit just in the stage repaired on outdoor unit
Often operation, meets the air conditioning requirements of user.
Further, after the outdoor unit of air conditioner fault restores normal, changeover module is controlled by the interior of the air conditioner
Machine-cut is shifted to be connect with the normal outdoor unit of recovery, is realized and is automatically controlled.
In a preferred embodiment, when a wherein outdoor unit of the air conditioner failure, searches and be in air-conditioning system
The air conditioner of off-mode then illustrates that the air conditioner does not need temporarily to use the i.e. indoor unit of the air conditioner in off-mode
The place interior space does not need to carry out temperature adjusting, then opens the air conditioner in off-mode, and controlling changeover module will
The indoor unit of the air conditioner of failure and the outdoor unit of the air conditioner of opening connect to form refrigerant circulation circuit.If can not find in pass
The air conditioner of machine state, then the indoor unit of the air conditioner of failure is switched to it is in parallel with the indoor unit of other air conditioners, thus not
Influence the use of other air conditioners.
Specifically, the air-conditioning system includes the first air conditioner and the second air conditioner, when the event of the first outdoor unit of the air conditioner
When barrier, judge whether the second air conditioner is in operating status, if it is, controlling changeover module for the indoor unit of the first air conditioner
It is in parallel with the indoor unit of the second air conditioner, so that the normal work of the second air conditioner room unit is not influenced, if the second air conditioner does not have
Have in operating status, then controls the indoor unit that the indoor unit of the first air conditioner is substituted the second air conditioner by changeover module.
Further, another control method of the air-conditioning system is provided, when wherein an outdoor unit of the air conditioner defrosts
When, the air conditioner for being in off-mode in the air-conditioning system is searched, then illustrates that the air conditioner is temporarily not required in off-mode
It uses, i.e., the interior space where the indoor unit of the air conditioner does not need to carry out temperature adjusting, will be in the air-conditioning of off-mode
Device is opened, and is controlled the changeover module and exchanged the air conditioner of defrosting with the outdoor unit of the air conditioner just opened and indoor unit
Connection improves making for user so that the indoor unit of the air conditioner in defrosting state is borrowed other outdoor units to indoor heating
Use comfort.
It is further preferred that the indoor unit of multiple air conditioners is respectively arranged in the different interior spaces, or at one
It is respectively arranged in the very big interior space in different regions, to guarantee that changeover module cuts the position of outdoor unit
Reduce the influence adjusted to room air after changing.For example, the indoor unit of the first air conditioner is set to parlor, the room of the second air conditioner
Interior machine is set to bedroom, in this way, when user is at parlor, opens the first air conditioner, when the first outdoor unit of the air conditioner need into
When row defrosting, the indoor unit of the first air conditioner is connect with the second outdoor unit of the air conditioner, by the first outdoor unit of the air conditioner and
The indoor unit of second air conditioner connects, then parlor air conditioner indoor unit still maintains heating, and the indoor air conditioner indoor unit refrigeration that crouches,
The temperature in parlor is influenced little.Further, when the room to three or more configures air conditioner, if one of air-conditioning
The outdoor unit of device defrosts, then connect the indoor unit of the air conditioner with the outdoor unit of the air conditioner in the room farthest apart from its, into
One step reduces influence of the defrosting to temperature in room.
In a specific embodiment, as shown in Figure 1 to Figure 3, air-conditioning system includes the first air conditioner and the second air-conditioning
Device, the first air conditioner include the first indoor unit 12 and the first outdoor unit 11, are provided with the first outdoor heat exchange in the first outdoor unit 11
Device 111, the first compressor 112, third four-way valve 113 and the first electric expansion valve 114, the first indoor unit 12 include the first Room
Interior heat exchanger 121.Second air conditioner includes the second indoor unit 22 and the second outdoor unit 21, is provided with second in the second outdoor unit 21
Outdoor heat exchanger 211, the second compressor 212, the 4th four-way valve 213 and the second electric expansion valve 214, the second indoor unit 22 packet
Include the second indoor heat exchanger 221.Changeover module between the first connection status and the second connection status for cutting air-conditioning system
It changes.Under first connection status, i.e., air-conditioning system is under normal operating condition, and the first outdoor unit 11 is connect with the first indoor unit 12
Refrigerant circulation circuit is formed, the second outdoor unit 21 connect to form refrigerant circulation circuit with the second indoor unit 22；Second connection status
Under, the first outdoor unit 11 is connect with the second indoor unit 22, and the second outdoor unit 21 is connect with the first indoor unit 12, when the first outdoor unit
When 11 failure, or when the defrosting of the first outdoor unit 11, air-conditioning system, which is switched to, can guarantee first under the second connection status
The normal operation of indoor unit 12.
Further, changeover module includes the first four-way valve 31 and the second four-way valve 32, and the first outdoor unit 11, first is indoor
Machine 12, the second outdoor unit 21 and the second indoor unit 22 all have two refrigerant entrances, four interfaces of the first four-way valve 31
It is separately connected one of refrigerant of the first outdoor unit 11, the first indoor unit 12, the second outdoor unit 21 and the second indoor unit 22
Entrance, four interfaces of the second four-way valve 32 be separately connected the first outdoor unit 11, the first indoor unit 12, the second outdoor unit 21 with
And second indoor unit 22 another refrigerant entrance.
When air-conditioning system is in normal operating condition, such as when being in heating state, as shown in Figure 1, the first four-way
One of refrigerant entrance of first outdoor unit 11 is connect by valve 31 with one of refrigerant entrance of the first indoor unit 12,
And one of refrigerant entrance of the second outdoor unit 21 is connect with one of refrigerant entrance of the second indoor unit 22；The
Two four-way valves 32 connect another refrigerant entrance of another refrigerant entrance of the first outdoor unit 11 and the first indoor unit 12
It connects, and another refrigerant entrance of the second outdoor unit 21 is connect with another refrigerant entrance of the second indoor unit 22.The
Routinely connection type connects three four-way valves 113 with the 4th four-way valve 213.
Specifically, the first air conditioner starts, and high temperature and pressure refrigerant comes out from the first compressor 112 through third four-way valve 113
It heats with after the first four-way valve 31 to the first indoor heat exchanger 121；The first electronic expansion is then flowed to by the second four-way valve 32
Valve 114 throttles, and exchanges heat after throttling in the first outdoor heat exchanger 111, returns to the first compressor 112 by third four-way valve 113 and inhales
Port forms a complete heating circulation.
The starting of second air conditioner, high temperature and pressure refrigerant come out from the second compressor 212 through the 4th four-way valve 213 and the two or four
It heats after port valve 32 to the second indoor heat exchanger 221；214 section of the second electric expansion valve is then flowed to by the first four-way valve 31
Stream, exchanges heat after throttling in the second outdoor heat exchanger 211, returns to 212 air entry of the second compressor, shape by the 4th four-way valve 213
At a complete heating circulation.
When the first outdoor unit 11 breaks down, as shown in Fig. 2, the first four-way valve 31 and the second four-way valve 32 commutate,
First four-way valve 31 goes out one of refrigerant of the one of refrigerant entrance and the second indoor unit 22 of the first outdoor unit 11
Entrance connection, and one of refrigerant of one of refrigerant entrance of the second outdoor unit 21 and the first indoor unit 12 is entered and left
Mouth connection；Second four-way valve 32 is by another refrigerant of another refrigerant entrance of the first outdoor unit 11 and the second indoor unit 22
Entrance connection, and by another refrigerant entrance of another refrigerant entrance of the second outdoor unit 21 and the first indoor unit 12
Connection.Routinely connection type connects third four-way valve 113 with the 4th four-way valve 213.To the first indoor unit 12 and second Room
Outer machine 21 forms refrigerant circulation circuit, guarantees the first normally heating of indoor unit 12.It is similar when the second outdoor unit 21 breaks down.
Specifically, when the failure of the first outdoor unit 11 can not start, when user needs to continue heating, the second air conditioner is opened
Dynamic operation, the first four-way valve 31 and the second four-way valve 32 commutate, and high temperature and pressure refrigerant comes out from the second compressor 212 through the 4th
Continue to heat to the first indoor heat exchanger 121 after four-way valve 213 and the second four-way valve 32, then refrigerant passes through the first four-way valve 31
The throttling of the second electric expansion valve 214 is flowed to, exchanges heat after throttling in the second outdoor heat exchanger 211, is returned by the 4th four-way valve 213
Second compressor, 212 air entry forms a complete heating circulation.
When the first outdoor unit 11 is defrosted, as shown in figure 3, third four-way valve 113 commutates, the first four-way valve 31 and the
Two four-way valves 32 also commutate, and the first four-way valve 31 is by the one of refrigerant entrance and the second indoor unit 22 of the first outdoor unit 11
The connection of one of refrigerant entrance, and by one of refrigerant entrance of the second outdoor unit 21 and the first indoor unit 12
One of refrigerant entrance connection；Second four-way valve 32 will be in another refrigerant entrance of the first outdoor unit 11 and second Room
Another refrigerant entrance of machine 22 connects, and by another refrigerant entrance of the second outdoor unit 21 and the first indoor unit 12
The connection of another refrigerant entrance.Routinely connection type connects third four-way valve 113 with the 4th four-way valve 213.To first
Indoor unit 12 and the second outdoor unit 21 form refrigerant circulation circuit, guarantee the first normally heating of indoor unit 12, the second indoor unit 22
Refrigerant circulation circuit is formed with the first outdoor unit 11, is defrosted to the first outdoor unit 11.When the second outdoor unit 21 defrosts
When it is similar.
Specifically, when the first outdoor unit 11 is defrosted, the starting operation of the second air conditioner, the first four-way valve 31 and second
Four-way valve 32 commutates, and high temperature and pressure refrigerant comes out after the 4th four-way valve 213 and the second four-way valve 32 from the second compressor 212
Continue to heat to the first indoor heat exchanger 121, then refrigerant flows to 214 section of the second electric expansion valve by the first four-way valve 31
Stream, exchanges heat after throttling in the second outdoor heat exchanger 211, returns to 212 air entry of the second compressor, shape by the 4th four-way valve 213
At a complete heating circulation, and the high temperature and pressure refrigerant of the first compressor 112 discharge flows to first through third four-way valve 113
Outdoor heat exchanger 111 carries out defrost, then throttles by the first electric expansion valve 114, flows to second by the second four-way valve 32
Indoor heat exchanger 221, finally flows through the first four-way valve 31 and third four-way valve 113 returns to the first compressor 112.
Wherein, the first four-way valve 31 and the second four-way valve 32 can also be substituted by four triple valves, can also be completed above-mentioned
Function.
Those skilled in the art will readily recognize that above-mentioned each preferred embodiment can be free under the premise of not conflicting
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is merely exemplary, and not restrictive, without departing from of the invention basic
In the case where principle, those skilled in the art can be directed to the various apparent or equivalent modification or replace that above-mentioned details is made
It changes, is all included in scope of the presently claimed invention.
Claims (11)
1. a kind of air-conditioning system, which is characterized in that including multiple air conditioners, each air conditioner includes outdoor unit and interior
Machine, the air-conditioning system further include changeover module, for switching to and another air-conditioning the indoor unit in any air conditioner
The outdoor unit of device connects to form refrigerant circulation circuit；
Wherein,
The changeover module be used for by the indoor unit in any air conditioner connect with the outdoor unit of the air conditioner and with it is another
Switch between the connection of one outdoor unit of the air conditioner；Alternatively,
The changeover module is used for any two outdoor unit of the air conditioner and indoor unit exchange connection；Alternatively,
The changeover module is in parallel with the indoor unit of another air conditioner for switching to the indoor unit in any air conditioner
Or the indoor unit of another air conditioner of substitution.
2. air-conditioning system according to claim 1, which is characterized in that the air-conditioning system includes the first air conditioner and second
Air conditioner, first air conditioner include the first outdoor unit and the first indoor unit, and second air conditioner includes the second outdoor unit
With the second indoor unit, the changeover module between the first connection status and the second connection status for cutting the air-conditioning system
It changes；
First connection status be first outdoor unit connect with first indoor unit, second outdoor unit with it is described
The connection of second indoor unit；
Second connection status be first outdoor unit connect with second indoor unit, second outdoor unit with it is described
The connection of first indoor unit.
3. air-conditioning system according to claim 2, which is characterized in that the changeover module includes the first four-way valve and second
Four-way valve, first outdoor unit, first indoor unit, second outdoor unit, second indoor unit all have two
Refrigerant entrance, four interfaces of first four-way valve are separately connected first outdoor unit, first indoor unit, described
One of refrigerant entrance of second outdoor unit and second indoor unit, four interfaces difference of second four-way valve
Another for connecting first outdoor unit, first indoor unit, second outdoor unit and second indoor unit is cold
Matchmaker's entrance.
4. air-conditioning system according to any one of claims 1 to 3, which is characterized in that the indoor unit of the multiple air conditioner
It is respectively arranged in the different interior spaces or in the different zones of the same interior space.
5. a kind of control method of the air-conditioning system as described in any one of Claims 1-4, which is characterized in that when a wherein air-conditioning
When the outdoor unit failure of device, the changeover module is controlled by the indoor unit of the air conditioner and connect shape with another outdoor unit of the air conditioner
At refrigerant circulation circuit.
6. control method according to claim 5, which is characterized in that after the outdoor unit of air conditioner fault restores normal,
The changeover module is controlled to switch to the indoor unit of the air conditioner and restore the normal outdoor unit and connect.
7. control method according to claim 5, which is characterized in that the air-conditioning system includes the first air conditioner and second
Air conditioner judges whether the second air conditioner is in operating status when the first outdoor unit of the air conditioner failure, if it is, control
It makes the changeover module indoor unit of first air conditioner is in parallel with the indoor unit of second air conditioner, otherwise controls institute
State the indoor unit that the indoor unit of first air conditioner is substituted second air conditioner by changeover module.
8. control method according to claim 7, which is characterized in that the control changeover module is empty by described first
Adjusting the indoor unit of device to substitute the indoor unit of second air conditioner further comprises by the indoor unit of second air conditioner and institute
State the connection of the first outdoor unit of the air conditioner.
9. control method according to claim 5 or 6, which is characterized in that when a wherein outdoor unit of the air conditioner failure,
The air conditioner for being in off-mode in the air-conditioning system is searched, the air conditioner in off-mode is opened, and described in control
The indoor unit of the air conditioner of failure is connect to form refrigerant circulation circuit by changeover module with the outdoor unit of the air conditioner that this has just been opened.
10. a kind of control method of the air-conditioning system as described in any one of claims 1 to 3, which is characterized in that when a wherein air-conditioning
When the outdoor unit of device is defrosted, the air conditioner for being in off-mode in the air-conditioning system is searched, off-mode will be in
Air conditioner is opened, and controls the changeover module for the air conditioner of defrosting and the outdoor unit of the air conditioner just opened and indoor unit
Exchange connection.
11. control method according to claim 10, which is characterized in that the indoor unit of the multiple air conditioner is respectively set
In the different interior spaces or in the different zones of the same interior space.
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| CN108679780B (en) * | 2018-04-11 | 2019-08-09 | 浙江国祥股份有限公司 | A kind of high-precision constant-temperature constant-moisture air-conditioning system and control method |
| CN112503722B (en) * | 2020-12-07 | 2021-12-31 | 珠海格力电器股份有限公司 | Linkage control method and system of equipment, computer equipment and storage medium |
| CN114754462A (en) * | 2022-04-18 | 2022-07-15 | 青岛海尔空调电子有限公司 | Air conditioner control method, system, device, medium and air conditioner |
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