CN106568167A - Air conditioner system and control method thereof - Google Patents
Air conditioner system and control method thereof Download PDFInfo
- Publication number
- CN106568167A CN106568167A CN201610957244.8A CN201610957244A CN106568167A CN 106568167 A CN106568167 A CN 106568167A CN 201610957244 A CN201610957244 A CN 201610957244A CN 106568167 A CN106568167 A CN 106568167A
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- CN
- China
- Prior art keywords
- air
- conditioner
- indoor set
- premises station
- conditioning system
- 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.)
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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
-
- 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)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioner system and a control method. The air conditioner system comprises multiple air conditioners. Each air conditioner comprises an outdoor unit and an indoor unit. The air conditioner system further comprises a switch assembly used for switching the indoor unit in any one air conditioner to be connected with the outdoor unit of another air conditioner so as to form a refrigerant circulation loop. Due to the fact that the air conditioner system is provided with the switch assembly, when the outdoor unit of one air conditioner breaks down, the indoor unit of the broken-down air conditioner can be switched to be connected with the outdoor unit of another air conditioner so as to form the refrigerant circulation loop, normal operation of the indoor unit is maintained by means of the outdoor unit of the corresponding air conditioner, accordingly, normal operation of the indoor unit is not affected in the maintenance stage of the outdoor unit, and air conditioning requirements of uses are met.
Description
Technical field
The present invention relates to a kind of air-conditioning technical field, relates more specifically to a kind of air conditioning system and its control method.
Background technology
Existing domestic air conditioner when there is cold draining matchmaker, system component failure in its off-premises station cannot normal startup optimization, therefore
Barrier detection and maintenance needs certain hour, user cannot normally using air-conditioner regulation indoor temperature, impact user in the meantime
Experience.
The content of the invention
In view of this, an object of the present invention is to provide one kind and does not affect to meet room when wherein an off-premises station breaks down
The air conditioning system and its control method of interior air adjustment.
A kind of first aspect, there is provided air conditioning system.
A kind of air conditioning system, including multiple air-conditioners, each air-conditioner include off-premises station and indoor set, the air-conditioning
System also includes changeover module, for the indoor set in any of which air-conditioner to be switched to the off-premises station company with another air-conditioner
Connect to form refrigerant circulation circuit.
Preferably, the changeover module for by the indoor set in any of which air-conditioner in the off-premises station with the air-conditioner
Switch between connecting and being connected with the off-premises station of another air-conditioner.
Preferably, the changeover module connects for the off-premises station of any two air-conditioners and indoor set are exchanged.
Preferably, the air conditioning system includes the first air-conditioner and the second air-conditioner, and first air-conditioner includes first
Off-premises station and the first indoor set, second air-conditioner include the second off-premises station and the second indoor set, 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 is connected with first indoor set for first off-premises station, second off-premises station with
The second indoor set connection；
Second connection status is connected with second indoor set for first off-premises station, second off-premises station with
The first indoor set connection.
Preferably, the changeover module includes the first cross valve and the second cross valve, first off-premises station, described first
Indoor set, second off-premises station, second indoor set are respectively provided with two coolant gateways, four of first cross valve
Interface connects first off-premises station, first indoor set, second off-premises station and second indoor set respectively
One of coolant gateway, four interfaces of second cross valve connect first off-premises station, first Room respectively
Another coolant gateway of interior machine, second off-premises station and second indoor set.
Preferably, the changeover module is for the indoor set in any of which air-conditioner is switched to and another air-conditioner
Indoor set is in parallel or substitutes the indoor set of another air-conditioner.
Preferably, during the indoor set of the plurality of air-conditioner is respectively arranged at the different interior spaces or the same interior space
Zones of different in.
A kind of second aspect, there is provided control method of air conditioning system.
A kind of control method of air conditioning system as described above, when the off-premises station failure of a wherein air-conditioner, control is described
The indoor set of the air-conditioner is connected to form refrigerant circulation circuit by changeover module with the off-premises station of another air-conditioner.
Preferably, after the off-premises station of air conditioner fault recovers normal, the changeover module is controlled by the room of the air-conditioner
Interior machine is switched to and is connected with the normal off-premises station of recovery.
Preferably, the air conditioning system includes the first air-conditioner and the second air-conditioner, when the off-premises station event of the first air-conditioner
During barrier, whether the second air-conditioner is judged in running status, if it is, controlling the changeover module by first air-conditioner
Indoor set it is in parallel with the indoor set of second air-conditioner, otherwise control the changeover module by the room of first air-conditioner
Interior machine substitutes the indoor set of second air-conditioner.
Preferably, the indoor set of first air-conditioner is substituted second air-conditioner by the control changeover module
Indoor set further include to be connected the indoor set of second air-conditioner with the off-premises station of first air-conditioner.
Preferably, when the off-premises station failure of a wherein air-conditioner, in searching the air conditioning system, it is in off-mode
Air-conditioner, will be in off-mode air-conditioner open, and control the changeover module by the indoor set of the air-conditioner of failure with
The off-premises station of the air-conditioner of the firm opening connects to form refrigerant circulation circuit.
A kind of third aspect, there is provided control method of air conditioning system.
A kind of control method of air conditioning system as described above, it is characterised in that when the off-premises station of a wherein air-conditioner is carried out
During defrosting, the air-conditioner of off-mode in searching the air conditioning system, is in, will open in the air-conditioner of off-mode, and control
Make the changeover module and the air-conditioner for defrosting is exchanged into connection with the off-premises station and indoor set of the air-conditioner of the firm opening.
Preferably, during the indoor set of the plurality of air-conditioner is respectively arranged at the different interior spaces or the same interior space
Zones of different in.
The air conditioning system that the present invention is provided is provided with changeover module, when the off-premises station of a wherein air-conditioner breaks down,
The indoor set of failure air-conditioner can be switched to and be connected to form refrigerant circulation circuit with the off-premises station of other air-conditioners, borrow other
The off-premises station of air-conditioner maintaining the normal operation of indoor set, so as to not affect indoor set in the stage keeped in repair on off-premises station
Normal operation, meet the air conditioning requirements of user.
The control method of the above-mentioned air conditioning system that the present invention is provided, can when the off-premises station of a wherein air-conditioner breaks down
The indoor set of failure air-conditioner is switched to and is connected to form refrigerant circulation circuit with the off-premises station of other air-conditioners, borrow other empty
The off-premises station of device is adjusted maintaining the normal operation of indoor set, so that indoor set is not affected in the stage keeped in repair on off-premises station
It is normal to run, meet the air conditioning requirements of user.
Another control method of the above-mentioned air conditioning system that the present invention is provided can enter defrosting state by an air-conditioner wherein
When control changeover module the air-conditioner is exchanged into connection with the off-premises station and indoor set of another air-conditioner, so as to will in defrost shape
The indoor set of the air-conditioner of state borrows other off-premises stations to indoor heating, improves the comfort of user.
Description of the drawings
By description referring to the drawings to the embodiment of the present invention, above-mentioned and other purposes of the present invention, feature and
Advantage will be apparent from, in the accompanying drawings：
Fig. 1 illustrates that the air conditioning system that the specific embodiment of the invention is provided is in the schematic diagram for normally heating state；
Fig. 2 illustrate the specific embodiment of the invention provide the first off-premises station of air conditioning system break down after schematic diagram；
Schematic diagram when Fig. 3 illustrates that the first off-premises station of air conditioning system that the specific embodiment of the invention is provided is defrosted.
In figure, the 11, first off-premises station；111st, the first outdoor heat exchanger；112nd, the first compressor；113rd, the 3rd cross valve；
114th, the first electric expansion valve；12nd, the first indoor set；121st, the first indoor heat exchanger；21st, the second off-premises station；211st, second Room
External heat exchanger；212nd, the second compressor；213rd, the 4th cross valve；214th, the second electric expansion valve；22nd, the second indoor set；221、
Second indoor heat exchanger；3rd, changeover module；31st, the first cross valve；32nd, the second cross valve.
Specific embodiment
Below based on embodiment, present invention is described, but the present invention is not restricted to these embodiments.Under
It is in detailed description of the text to the present invention, detailed to describe some specific detail sections.Do not have for a person skilled in the art
The description of these detail sections can also understand the present invention completely.In order to avoid obscuring the essence of the present invention, known method, mistake
Journey, flow process, element are not described in detail.
Additionally, it should be understood by one skilled in the art that accompanying drawing is provided to descriptive purpose provided herein, and
What accompanying drawing was not necessarily drawn to scale.
Unless the context clearly requires otherwise, otherwise entire disclosure is similar with " the including " in claims, "comprising" etc.
Word should be construed to the implication for including rather than exclusive or exhaustive implication；That is, be " including but not limited to " contains
Justice.
In describing the invention, it is to be understood that term " first ", " second " etc. are not only used for describing purpose, and not
It is understood that to indicate or implying relative importance.Additionally, in describing the invention, unless otherwise stated, the implication of " multiple "
It is two or more.
The invention provides a kind of air conditioning system, which includes multiple air-conditioners, each air-conditioner include off-premises station and
Indoor set, under normal circumstances, the off-premises station and indoor set of each air-conditioner connect to form refrigerant circulation circuit.The air conditioning system
Also include changeover module, be connected shape with the off-premises station of another air-conditioner for the indoor set in any of which air-conditioner is switched to
Into refrigerant circulation circuit, so as to when the off-premises station of a wherein air-conditioner breaks down, the indoor set of failure air-conditioner be cut
Shift to be connected to form refrigerant circulation circuit with the off-premises station of other air-conditioners, borrow the off-premises station of other air-conditioners to remain indoor
The normal operation of machine, so as to the normal operation of indoor set is not affected in the stage keeped in repair on off-premises station, meets the sky of user
Gas regulatory demand.
Further, after the off-premises station of failure recovers normal, off-premises station is switched to and recovery again by changeover module
Off-premises station connection after normal.That is, the indoor set in any of which air-conditioner can be the room of the air-conditioner by the changeover module
Outer machine is switched between connecting and being connected with the off-premises station of another air-conditioner, it is easy to accomplish automatically controlled.
Illustrate by taking the first air-conditioner and the second air-conditioner as an example below, when air-conditioner has two or more period control method
It is similar.
Wherein, the indoor set in any of which air-conditioner is switched to and is connected to form coolant with the off-premises station of another air-conditioner
Closed circuit, will the indoor set of the first air-conditioner switch to and be connected to form refrigerant circulation circuit with the off-premises station of the second air-conditioner
Two ways is may include, a kind of is that the indoor set in the first air-conditioner is switched to, example in parallel with the indoor set of the second air-conditioner
Such as, when the second air-conditioner is also at running status, switch in parallel with the indoor set of the second air-conditioner, second can not be affected
The normal operation of air-conditioner；Another way is by the indoor set of indoor set the second air-conditioner of replacement in the first air-conditioner, example
Such as, when the second air-conditioner is not on running status at the beginning, another air-conditioner is opened, while with the room of the first air-conditioner
Interior machine substitutes the indoor set of the second air-conditioner such that it is able to ensure heat exchange efficiency.
Further, the indoor set of indoor set second air-conditioner of replacement of the first air-conditioner of use herein can have two kinds of sides
Formula, a kind of mode are that directly the indoor set of the second air-conditioner is disconnected with off-premises station, and by the indoor set of the first air-conditioner and the
The off-premises station 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 off-premises station exchange connection, i.e. the indoor set of the first air-conditioner is connected with the off-premises station of the second air-conditioner, the second air-conditioner
Off-premises station be connected with the indoor set of the first air-conditioner.Which can be also used when off-premises station defrosts.For example, when first
When the off-premises station of air-conditioner is defrosted, the indoor set and off-premises station of the first air-conditioner and the second air-conditioner are exchanged into connection, and
Open the second air-conditioner, it is ensured that the indoor set of the first air-conditioner remains able to maintenance and heats.
It is further preferred that the indoor set 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, after switching over to the position of off-premises station so as to changeover module
The impact very little adjusted by room air.For example, the indoor set of the first air-conditioner is arranged at parlor, the indoor set of the second air-conditioner
Bedroom is arranged at, thus, when user is in parlor, the first air-conditioner is opened, when the off-premises station of the first air-conditioner needs to be removed
When white, the indoor set of the first air-conditioner is connected with the off-premises station of the second air-conditioner, by the off-premises station of the first air-conditioner and second
The indoor set connection of air-conditioner, then parlor indoor apparatus of air conditioner is remained in that and is heated, and the indoor apparatus of air conditioner refrigeration in bedroom, to visitor
The temperature in the Room affects little.Further, when the room configuration air-conditioner to three and the above, if one of air-conditioner
Off-premises station defrosts, then be connected the indoor set of the air-conditioner with the off-premises station of the air-conditioner apart from its farthest room, further
Reduce impact of the defrosting to temperature in room.
Wherein, the concrete structure of changeover module is not limited, and can realize handoff functionality, for example, can pass through multiple switch valve
And connecting line is realized.
Further, there is provided the control method of the air conditioning system, when the off-premises station failure of a wherein air-conditioner, control is cut
Change component to be connected to form refrigerant circulation circuit with the off-premises station of another air-conditioner by the indoor set of the air-conditioner, borrow other air-conditionings
The off-premises station of device maintaining the normal operation of indoor set, so as to just not affect indoor set in the stage keeped in repair on off-premises station
Often run, meet the air conditioning requirements of user.
Further, after the off-premises station of air conditioner fault recovers normal, changeover module is controlled by the interior of the air-conditioner
Machine is switched to and is connected with the normal off-premises station of recovery, realizes automatically controlling.
In a preferred embodiment, when the off-premises station failure of a wherein air-conditioner, it is in searching air conditioning system
In off-mode, the air-conditioner of off-mode, then illustrates that the air-conditioner need not temporarily be used, i.e. the indoor set of the air-conditioner
The place interior space need not carry out temperature adjustment, then will be in the air-conditioner opening of off-mode, and control changeover module and incite somebody to action
The indoor set of the air-conditioner of failure is connected to form refrigerant circulation circuit with the off-premises station of the air-conditioner opened.If can not find in pass
The air-conditioner of machine state, then the indoor set of the air-conditioner of failure is switched to it is in parallel with the indoor set of other air-conditioners, so as to not
Affect the use of other air-conditioners.
Specifically, the air conditioning system includes the first air-conditioner and the second air-conditioner, when the off-premises station event of the first air-conditioner
During barrier, whether the second air-conditioner is judged in running status, if it is, controlling changeover module by the indoor set of the first air-conditioner
It is in parallel with the indoor set of the second air-conditioner, so as to not affect the normal work of the second air conditioner room unit, if the second air-conditioner does not have
Have in running status, then control the indoor set that the indoor set of the first air-conditioner is substituted changeover module the second air-conditioner.
Further, there is provided another control method of the air conditioning system, when the off-premises station of a wherein air-conditioner is defrosted
When, the air-conditioner of off-mode is in searching the air conditioning system, then illustrates that the air-conditioner is temporarily not required in off-mode
Use, i.e. the indoor set place interior space of the air-conditioner need not carry out temperature adjustment, by the air-conditioning in off-mode
Device open, and control the changeover module by defrost air-conditioner exchange with the off-premises station and indoor set of the air-conditioner of the firm opening
Connection, so as to the indoor set of the air-conditioner in defrosting state is borrowed other off-premises stations to indoor heating, improves making for user
Use comfortableness.
It is further preferred that the indoor set 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, so as to ensure that changeover module is cut to the position of off-premises station
Reduce the impact adjusted to room air after changing.For example, the indoor set of the first air-conditioner is arranged at parlor, the room of the second air-conditioner
Interior machine is arranged at bedroom, thus, when user is in parlor, opens the first air-conditioner, when the off-premises station of the first air-conditioner need into
During row defrosting, the indoor set of the first air-conditioner is connected with the off-premises station of the second air-conditioner, by the off-premises station of the first air-conditioner and
The indoor set connection of the second air-conditioner, then parlor indoor apparatus of air conditioner is remained in that and is heated, and the indoor apparatus of air conditioner refrigeration in bedroom,
Little is affected on the temperature in parlor.Further, when the room configuration air-conditioner to three and the above, if one of air-conditioning
The off-premises station defrosting of device, then be connected the indoor set of the air-conditioner with the off-premises station of the air-conditioner apart from its farthest room, entered
One step reduces impact 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 set 12 and the first off-premises station 11, are provided with the first outdoor heat exchange in the first off-premises station 11
Device 111, the first compressor 112, the 3rd cross valve 113 and the first electric expansion valve 114, the first indoor set 12 include the first Room
Interior heat exchanger 121.Second air-conditioner includes the second indoor set 22 and the second off-premises station 21, is provided with second in the second off-premises station 21
Outdoor heat exchanger 211, the second compressor 212, the 4th cross valve 213 and the second electric expansion valve 214, the second indoor set 22 are wrapped
Include the second indoor heat exchanger 221.Changeover module is for air conditioning system is cut between the first connection status and the second connection status
Change.Under first connection status, i.e., under normal operating condition, the first off-premises station 11 is connected air conditioning system with the first indoor set 12
Refrigerant circulation circuit is formed, the second off-premises station 21 is connected to form refrigerant circulation circuit with the second indoor set 22；Second connection status
Under, the first off-premises station 11 is connected with the second indoor set 22, and the second off-premises station 21 is connected with the first indoor set 12, when the first off-premises station
During 11 failure, or when the first off-premises station 11 defrosts, air conditioning system is switched to and first is ensure that under the second connection status
The normal operation of indoor set 12.
Further, changeover module includes the first cross valve 31 and the second cross valve 32, and the first off-premises station 11, first is indoor
Machine 12, the second off-premises station 21 and the second indoor set 22 are respectively provided with two coolant gateways, four interfaces of the first cross valve 31
Connect one of coolant of the first off-premises station 11, the first indoor set 12, the second off-premises station 21 and the second indoor set 22 respectively
Gateway, four interfaces of the second cross valve 32 connect the first off-premises station 11, the first indoor set 12, the second off-premises station 21 respectively with
And second indoor set 22 another coolant gateway.
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 coolant gateway of the first off-premises station 11 is connected by valve 31 with one of coolant gateway of the first indoor set 12,
And one of coolant gateway of the second off-premises station 21 is connected with one of coolant gateway of the second indoor set 22；The
Another coolant gateway of two cross valves 32 by another coolant gateway of the first off-premises station 11 with the first indoor set 12 connects
Connect, and another coolant gateway of the second off-premises station 21 is connected with another coolant gateway of the second indoor set 22.The
The routinely connected mode connection of three cross valves 113 and the 4th cross valve 213.
Specifically, the first air-conditioner starts, and High Temperature High Pressure coolant is from the first compressor 112 out the 3rd cross valves 113 of Jing
Heat to the first indoor heat exchanger 121 with after the first cross valve 31；The first electronic expansion is flowed to by the second cross valve 32 subsequently
Valve 114 throttles, and exchanges heat in the first outdoor heat exchanger 111 after throttling, returns the first compressor 112 through the 3rd cross valve 113 and inhales
QI KOU, what formation one was complete heat circulation.
Second air-conditioner starts, and High Temperature High Pressure coolant is from the second compressor 212 out the 4th cross valves 213 and the 2nd 4 of Jing
Heat to the second indoor heat exchanger 221 after port valve 32；Subsequently flow to the second electric expansion valve 214 by the first cross valve 31 to save
Stream, exchanges heat in the second outdoor heat exchanger 211 after throttling, returns 212 air entry of the second compressor, shape through the 4th cross valve 213
Complete circulation is heated into one.
When the first off-premises station 11 breaks down, as shown in Fig. 2 the first cross valve 31 and the second cross valve 32 commutate,
One of coolant gateway of the first off-premises station 11 and one of coolant of the second indoor set 22 are gone out by the first cross valve 31
Entrance connects, and the one of coolant by one of coolant gateway of the second off-premises station 21 with the first indoor set 12 comes in and goes out
Mouth connection；Second cross valve 32 is by another coolant of another coolant gateway of the first off-premises station 11 and the second indoor set 22
Gateway connects, and by another coolant gateway of another coolant gateway of the second off-premises station 21 and the first indoor set 12
Connection.The routinely connected mode connection of 3rd cross valve 113 and the 4th cross valve 213.So as to, the first indoor set 12 and second Room
Outer machine 21 forms refrigerant circulation circuit, it is ensured that the first indoor set 12 is normally heated.It is similar to when the second off-premises station 21 breaks down.
Specifically, when the first off-premises station 11 breaks down and cannot start, when user needs to continue heating, the second air-conditioner is opened
Dynamic operation, the first cross valve 31 and the second cross valve 32 commutate, and High Temperature High Pressure coolant is from the second compressor 212 out Jing the 4th
Continue to heat to the first indoor heat exchanger 121 after cross valve 213 and the second cross valve 32, then coolant passes through the first cross valve 31
Flow to the second electric expansion valve 214 to throttle, exchange heat in the second outdoor heat exchanger 211 after throttling, return through the 4th cross valve 213
Second compressor, 212 air entry, what formation one was complete heat circulation.
When the first off-premises station 11 is defrosted, as shown in figure 3, the 3rd cross valve 113 commutates, the first cross valve 31 and
Two cross valves 32 also commutate, and the first cross valve 31 is by one of coolant gateway of the first off-premises station 11 and the second indoor set 22
The connection of one of coolant gateway, and by one of coolant gateway of the second off-premises station 21 and the first indoor set 12
One of coolant gateway connection；Second cross valve 32 will be another coolant gateway of the first off-premises station 11 indoor with second
Another coolant gateway of machine 22 connects, and by another coolant gateway of the second off-premises station 21 and the first indoor set 12
Another coolant gateway connects.The routinely connected mode connection of 3rd cross valve 113 and the 4th cross valve 213.So as to first
Indoor set 12 and the second off-premises station 21 form refrigerant circulation circuit, it is ensured that the first indoor set 12 is normally heated, the second indoor set 22
Refrigerant circulation circuit is formed with the first off-premises station 11, the first off-premises station 11 is defrosted.When the second off-premises station 21 is defrosted
When it is similar.
Specifically, when the first off-premises station 11 is defrosted, the second air-conditioner startup optimization, the first cross valve 31 and second
Cross valve 32 commutates, and High Temperature High Pressure coolant is from the second compressor 212 out Jing after the 4th cross valve 213 and the second cross valve 32
Continue to heat to the first indoor heat exchanger 121, then coolant flows to the second electric expansion valve 214 by the first cross valve 31 and saves
Stream, exchanges heat in the second outdoor heat exchanger 211 after throttling, returns 212 air entry of the second compressor, shape through the 4th cross valve 213
Into one it is complete heat circulation, and the 3rd cross valves 113 of High Temperature High Pressure coolant Jing that the first compressor 112 is discharged flow to first
Outdoor heat exchanger 111 carries out defrost, then throttles through the first electric expansion valve 114, flows to second by the second cross valve 32
Indoor heat exchanger 221, finally flows through the first cross valve 31 and the 3rd cross valve 113 returns the first compressor 112.
Wherein, the first cross valve 31 and the second cross valve 32 can also be substituted by four three-way valve, can also be completed above-mentioned
Function.
Those skilled in the art is it is easily understood that on the premise of not conflicting, above-mentioned each preferred version can be free
Ground combination, superposition.
It should be appreciated that above-mentioned embodiment is only illustrative, and not restrictive, without departing from the basic of the present invention
In the case of principle, those skilled in the art can be directed to the modification of the various obvious or equivalent that above-mentioned details is made or replace
Change, be all included in scope of the presently claimed invention.
Claims (14)
1. a kind of air conditioning system, it is characterised in that including multiple air-conditioners, each air-conditioner includes off-premises station and interior
Machine, the air conditioning system also include changeover module, for the indoor set in any of which air-conditioner is switched to and another air-conditioning
The off-premises station of device connects to form refrigerant circulation circuit.
2. air conditioning system according to claim 1, it is characterised in that the changeover module is for by any of which air-conditioner
In indoor set switch between the off-premises station with the air-conditioner is connected and is connected with the off-premises station of another air-conditioner.
3. air conditioning system according to claim 1, it is characterised in that the changeover module is for by any two air-conditioners
Off-premises station and indoor set exchange connection.
4. air conditioning system according to claim 3, it is characterised in that the air conditioning system includes the first air-conditioner and second
Air-conditioner, first air-conditioner include the first off-premises station and the first indoor set, and second air-conditioner includes the second off-premises station
With the second indoor set, the changeover module is for the air conditioning system is cut between the first connection status and the second connection status
Change；
First connection status is connected with first indoor set for first off-premises station, second off-premises station with it is described
Second indoor set connects；
Second connection status is connected with second indoor set for first off-premises station, second off-premises station with it is described
First indoor set connects.
5. air conditioning system according to claim 4, it is characterised in that the changeover module includes the first cross valve and second
Cross valve, first off-premises station, first indoor set, second off-premises station, second indoor set are respectively provided with two
Coolant gateway, four interfaces of first cross valve connect first off-premises station, first indoor set, described respectively
One of coolant gateway of the second off-premises station and second indoor set, four interface difference of second cross valve
Another for connecting first off-premises station, first indoor set, second off-premises station and second indoor set is cold
Matchmaker gateway.
6. air conditioning system according to claim 1, it is characterised in that the changeover module is for by any of which air-conditioner
In indoor set switch to indoor set that is in parallel with the indoor set of another air-conditioner or substituting another air-conditioner.
7. the air conditioning system according to any one of claim 1 to 6, it is characterised in that the indoor set of the plurality of air-conditioner
In being respectively arranged at the different interior spaces or in the zones of different of the same interior space.
8. a kind of control method of the air conditioning system as described in any one of claim 1 to 7, it is characterised in that when a wherein air-conditioning
During the off-premises station failure of device, control the changeover module and the indoor set of the air-conditioner is connected into shape with the off-premises station of another air-conditioner
Into refrigerant circulation circuit.
9. control method according to claim 8, it is characterised in that after the off-premises station of air conditioner fault recovers normal,
Control the changeover module to switch to the indoor set of the air-conditioner and recover the normal off-premises station and be connected.
10. control method according to claim 8, it is characterised in that the air conditioning system includes the first air-conditioner and
Whether two air conditioner, when the off-premises station failure of the first air-conditioner, judge the second air-conditioner in running status, if it is,
Control the changeover module indoor set of first air-conditioner is in parallel with the indoor set of second air-conditioner, otherwise control
The indoor set of first air-conditioner is substituted the changeover module indoor set of second air-conditioner.
11. control methods according to claim 10, it is characterised in that the control changeover module is by described first
The indoor set of air-conditioner substitute the indoor set of second air-conditioner further include by the indoor set of second air-conditioner with
The off-premises station connection of first air-conditioner.
12. control methods according to claim 8 or claim 9, it is characterised in that when the off-premises station failure of a wherein air-conditioner
When, the air-conditioner of off-mode is in searching the air conditioning system, will be opened in the air-conditioner of off-mode, and be controlled institute
State changeover module to be connected to form refrigerant circulation time by the indoor set of the air-conditioner of failure with the off-premises station of the air-conditioner of the firm opening
Road.
13. a kind of control methods of the air conditioning system as described in any one of claim 3 to 5, it is characterised in that when a wherein air-conditioning
When the off-premises station of device is defrosted, the air-conditioner of off-mode in searching the air conditioning system, is in, will be in off-mode
Air-conditioner is opened, and controls the changeover module by the air-conditioner for defrosting and the off-premises station and indoor set of the air-conditioner of the firm opening
Exchange connection.
14. control methods according to claim 13, it is characterised in that the indoor set of the plurality of air-conditioner is respectively provided with
In the different interior spaces or in the zones of different of the same interior space.
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| CN106568167B (en) | 2019-01-29 |
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