CN110260420A - air conditioner and air conditioner refrigerant recovery control method - Google Patents
air conditioner and air conditioner refrigerant recovery control method Download PDFInfo
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- CN110260420A CN110260420A CN201910481542.8A CN201910481542A CN110260420A CN 110260420 A CN110260420 A CN 110260420A CN 201910481542 A CN201910481542 A CN 201910481542A CN 110260420 A CN110260420 A CN 110260420A
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000011084 recovery Methods 0.000 title abstract 3
- 238000004378 air conditioning Methods 0.000 claims abstract description 47
- 238000004891 communication Methods 0.000 claims description 66
- 238000004064 recycling Methods 0.000 claims description 31
- 239000002826 coolant Substances 0.000 claims description 15
- 238000012360 testing method Methods 0.000 claims description 6
- 230000005856 abnormality Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
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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
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/002—Collecting refrigerant from a cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/003—Control issues for charging or collecting refrigerant to or from a cycle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides an air conditioner and an air conditioner refrigerant recovery method, wherein the air conditioner comprises: the air conditioner comprises a compressor, an outdoor unit and a plurality of indoor units connected in parallel, wherein the compressor, the outdoor unit and the plurality of indoor units are connected into an air conditioning loop; a first control valve corresponding to the indoor unit is arranged on a connecting pipeline of any indoor unit and any outdoor unit, and the first control valve is used for controlling the on-off of a refrigerant between the corresponding indoor unit and the corresponding outdoor unit; a second control valve corresponding to any indoor unit is arranged on a connecting pipeline between the indoor unit and the compressor, and the second control valve is used for controlling the on-off of a refrigerant between the corresponding indoor unit and the compressor; the controller of any indoor unit can control each first control valve and each second control valve. Thereby guaranteed to carry out the refrigerant recovery to the indoor set when the indoor set breaks down.
Description
Technical field
This application involves field of air conditioning, in particular to air-conditioning and air conditioner coolant recycling and control method.
Background technique
In the prior art, air-conditioning needs to recycle the refrigerant of air-conditioning when being migrated or being repaired, to sky
When the refrigerant of tune is recycled, the liquid side shut-off valve of pusher side, is all recovered to outdoor unit for refrigerant usually outside tube wall room, but
It is when recycling has the air-conditioning of more indoor units in parallel in this way, if there is communication failure occurs in indoor unit, then can not
Refrigerant in the indoor unit of communication failure is recycled, the maintenance and processing of failure indoor unit are influenced.
Therefore, when there is communication failure in air conditioner indoor unit realize failure indoor unit refrigerant recovering, be this field urgently
It solves the problems, such as.
Summary of the invention
This application provides a kind of air-conditionings and air conditioner coolant recycling and control method, for when communication failure occurs in machine indoors
Realize the refrigerant recovering of failure indoor unit.
To solve the above-mentioned problems, as the one aspect of the application, a kind of air-conditioning is provided, comprising: connect into air-conditioning
The indoor unit of the compressor in circuit, outdoor unit and multiple parallel connections；
The first control valve corresponding with the indoor unit, the first control are provided on the connecting line of any indoor unit and outdoor unit
Valve processed is used to control the on-off of refrigerant between corresponding indoor unit and outdoor unit；
The second control valve corresponding with the indoor unit, the second control are provided on the connecting line of any indoor unit and compressor
Valve processed is used to control the on-off of refrigerant between corresponding indoor unit and compressor；
Communication connection between the controller of each indoor unit and the controller of outdoor unit；
Wherein, the controller of any indoor unit can control each first control valve and each second control valve.
Optionally, the controller of outdoor unit and each first control valve and the second control valve communication connection, the control of outdoor unit
Device processed is for controlling each first control valve and each second control valve；
The controller of indoor unit is by sending control instruction to the controller of outdoor unit, to control each first control valve
With each second control valve.
The application also proposes that a kind of air conditioner coolant recycling and control method, air-conditioning are the air-conditioning of any one of the application, comprising:
Receiving step, the controller of the first indoor unit receive refrigerant recovering instruction, wherein refrigerant recovering instruction includes needing
Carry out the target indoor unit of refrigerant recovering；
Corresponding first control valve of controller control target indoor unit of recycling step, the first indoor unit is closed, target chamber
Corresponding second control valve of interior machine is opened, and air-conditioning is run in a chiller mode；
Wherein, the first indoor unit is any normal indoor unit of communication.
Optionally, recycling step includes:
The controller of first indoor unit sends refrigerant recovering instruction to the controller of outdoor unit, so that the controller of outdoor unit
It controls corresponding first control valve of target indoor unit to close, corresponding second control valve of target indoor unit is opened, wherein the first Room
Interior machine be it is any can be with the indoor unit of outdoor unit normal communication.
Optionally, before the step of receiving further include:
Detecting step；Air-conditioning carries out communication self-test, determines whether each indoor unit communicates normally.
Optionally, when any indoor unit communication abnormality, communication failure processing is carried out, and/or, it provides communication failure and mentions
Show.
Optionally, target indoor unit includes one or more indoor units；And/or
Target indoor unit include can not normal communication failure indoor unit.
Optionally, recycling step further include:
It controls corresponding first control valve of non-targeted indoor unit and the second control valve is closed；
Wherein, non-targeted indoor unit is the indoor unit without carrying out refrigerant recovering.
Optionally, further includes:
Stop step, after target indoor unit refrigerant recovering, compressor shutdown closes all the after compressor shutdown
One control valve and the second control valve, outdoor unit blower be delayed the first duration after shut down.
Optionally, it presets and saves different remote controller key combination or control parameter combination, any remote controler
Key combination or the corresponding one or more indoor units of control parameter combination；
It include that remote controller key to be identified is combined or combined including control parameter to be identified in refrigerant recovering instruction,
It is target indoor unit that remote controller key combination to be identified or control parameter to be identified, which combine corresponding indoor unit,.
Present applicant proposes a kind of air-conditioning and air conditioner coolant recycling and control method, the indoor unit any in this application
Controller can control each first control valve and the second control valve can pass through when communication failure occurs in indoor unit
There is no the indoor unit of communication failure to control each first control valve and the second control valve, to realize the interior to communication failure
Machine carries out refrigerant recovering.
Detailed description of the invention
Fig. 1 is a kind of composition figure of air-conditioning in the embodiment of the present application；
Fig. 2 is a kind of flow chart of air conditioner coolant recycling and control method in the embodiment of the present application.
Appended drawing reference: 1, compressor；2, outdoor unit；3, indoor unit；4, the first control valve；5, the second control valve；6, four-way
Valve.
Specific embodiment
To keep the purposes, technical schemes and advantages of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall in the protection scope of this application.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Covering non-exclusive includes to be not necessarily limited to for example, containing the process, method of a series of steps or units, device, product or device
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that device is intrinsic.
In the prior art, for the air-conditioning with more indoor units in parallel, when needing to carry out to a certain indoor unit
When recycling refrigerant operation, refrigerant recovering instruction is sent to the indoor unit, indoor unit sends a signal to outdoor unit, outdoor unit control pressure
Contracting machine and four-way valve, indoor unit control corresponding switch valve, to realize indoor unit and outdoor unit cooperation recycling refrigerant, work as interior
When communication failure occurs in machine, the signal of indoor unit can not be sent to outdoor unit, can not cooperate with outdoor unit, lead to not to appearance
The indoor unit of communication failure recycles refrigerant, causes user experience low, influences the maintenance efficiency to indoor unit.
To solve the above-mentioned problems, present applicant proposes a kind of air-conditionings, as shown in Figure 1, the air-conditioning that the application proposes, packet
It includes: connecting into the compressor 1 of air conditioner loop, the indoor unit 3 of outdoor unit 2 and multiple parallel connections；It, can for the air-conditioning that the application proposes
To be single refrigeration air-conditioner, it is also possible to be able to carry out the air-conditioning of cooling and warming, when air-conditioning is the air-conditioning for being able to carry out cooling and warming
When, it further include four-way valve 6, the connection relationship of air-conditioning is existing mature technology, and this will not be repeated here, multiple parallel connections in the application
Indoor unit 3 for example can be 2,3,4 or 4 or more.The connecting tube of any indoor unit 3 and outdoor unit 2 in this application
Road is provided with the first control valve 4 corresponding with the indoor unit, and the first control valve 4 is for controlling corresponding indoor unit 3 and outdoor
The on-off of refrigerant between machine 2；Corresponding with the indoor unit 3 second is provided on the connecting line of any indoor unit 3 and compressor 1
Control valve 5, the second control valve 5 are used to control the on-off of refrigerant between corresponding indoor unit 3 and compressor 1；Each indoor unit 3
Communication connection between controller and the controller of outdoor unit 2；It is to refer to illustrations 1, in the application Fig. 1 simultaneously using four
The indoor unit (3A, 3B, 3C, 3D) of connection, the outdoor unit 3D of the rightmost side corresponds to the control of the first control valve 4D and second of the rightmost side in Fig. 1
Valve 5D processed, when the first control valve 4D is closed, the refrigerant pipeline between indoor unit 3D and outdoor unit 2 is in barrier state, refrigerant
It can not be flowed into indoor unit 3D from outdoor unit 2, when the second control valve 5D is closed, the refrigerant in indoor unit 3D can not flow into compression
Machine 1.In the present embodiment, the controller of any indoor unit 3 can control each first control valve 4 and each second control valve 5.
It is provided with controller in each indoor unit, can be by the way of multi-to-multi in the application, the control of each indoor unit 3
Device and each first control valve 4 and the direct or indirect communication connection of the second control valve 5, to realize that each indoor unit 3 can
All first control valves 4 and all second control valves 5 are enough controlled, so, when there is communication failure in any indoor unit 3,
The indoor unit that can use other not communication failures controls each first control valve 4 and the second control valve 5, and to outdoor unit
Controller sends control signal, controls outdoor unit and compressor by the controller of outdoor unit 2, so as to there is communication failure
Indoor unit carry out refrigerant recovering, as long as all there is communication failure in not every indoor unit 3, so that it may to normal by communication
Indoor unit to any one or more indoor units carry out refrigerant recovering.And in the prior art, there is communication failure in machine indoors
Afterwards, refrigerant recovering cannot be carried out to the indoor unit for communication failure occur.Communication failure described herein includes that can not connect
By remote command, it the communication failures such as can not communicate, can not communicate with the first control valve or the second control valve with outdoor unit, at this time
Indoor machine controller is unable to control other component.
For example, when carrying out refrigerant recovering and arriving outdoor unit 2, using the mode of air conditioner refrigerating operation, by interior
The controller of machine sends refrigerant recovering instruction, and indoor unit communicates and conveys the instruction to the controller of outdoor unit 2 in normal situation,
Controller control compressor 1, four-way valve 6 and the outdoor unit 2 of outdoor unit 2, for needing to carry out the indoor unit needs of refrigerant recovering
It controls its corresponding first control valve closing and the second control valve is opened, so that refrigerant flows to outdoor unit 2 from indoor unit, and when cold
After matchmaker recycles, needs to close the first control valve and the second control valve of the indoor unit for needing to recycle refrigerant, prevent other rooms
The refrigerant of interior machine flows into.
In some alternative embodiments, the controller of the outdoor unit 2 and each first control valve 4 and each the
Two control valves, 5 communication connection, the controller of the outdoor unit 2 is for controlling each first control valve 4 and each second control
Valve 5 processed；
The controller of the indoor unit 3 is by sending control instruction to the controller of the outdoor unit 2, to control each
First control valve 4 and each second control valve 5.In the present embodiment, each first control valve 4 and the second control valve 5 are
It is controlled by the controller of outdoor unit 2, each indoor unit 3 is by sending control instruction to outdoor unit 2, to indirectly control each
A first control valve 4 and the second control valve 5 because in the prior art, each 3 script of indoor unit just need with outdoor unit 2 into
Row communication connection, so directly utilizing existing indoor unit 3 and outdoor unit without improving to existing communication connection relationship
2 communication connection route, specified the first control valve for needing to control and the second control when only machine 3 sends control instruction indoors
The control for receive to any indoor unit refrigerant can be realized in valve, to reduce improvement cost.
The application also proposes a kind of air conditioner coolant recycling and control method, and wherein air-conditioning is the sky for any one that the application proposes
It adjusts, as shown in Fig. 2, the control method that the application proposes, comprising:
Receiving step, the controller of the first indoor unit receive refrigerant recovering instruction, wherein refrigerant recovering instruction includes needing
Carry out the target indoor unit of refrigerant recovering；
The refrigerant recovering instruction that user is sent by remote controler to the first indoor unit is received specifically, can be, and is indicated
Need to carry out the target indoor unit of refrigerant recovering.
Corresponding first control valve of controller control target indoor unit of recycling step, the first indoor unit is closed, the second control
Valve processed is opened, and air-conditioning is run in a chiller mode.
Specifically, in the present embodiment, first indoor unit is any normal indoor unit of communication, therefore first is indoor
Machine can any first control valve of normal control and the second control valve, and can be communicated with outdoor unit, air-conditioning is transported in a chiller mode
Row, while corresponding first control valve of target indoor unit is closed, corresponding second control valve of target indoor unit is opened, so target
Refrigerant inflow is not had in indoor unit, only has refrigerant outflow, to carry out refrigerant recovering to target indoor unit.For example,
Please refer to illustrations 1, it is assumed that the indoor unit 3A communication failure in Fig. 1 is unable to control any first control valve and the second control
Valve processed, user can send refrigerant recovering instruction to indoor unit 3D by remote controler at this time, and indoor unit 3D is that communication is normally
First indoor unit, when carrying out refrigerant recovering, control air-conditioning is run in a chiller mode, and 2 blower of outdoor unit is opened, the first control valve
4A is closed, and the second control valve 5A is opened, and compressor draws refrigerant from indoor unit, and the refrigerant of indoor unit 3A flows into compressor, compression
The refrigerant of machine discharge flows to outdoor unit 2, since the first control valve 4A is closed, so the refrigerant in indoor unit 3A only can be increasingly
It is few, realize the recycling to refrigerant, the first control valve of other indoor units and the second control valve can be opened normally at this time, to subtract
Operating pressure in light air-conditioning duct.It should be noted that target indoor unit can be one or more, normal communication can be
Indoor unit, be also possible to the indoor unit that communication abnormality is unable to control the first control valve and the second control valve.
In some alternative embodiments, the controller of the outdoor unit 2 and each first control valve 4 and each the
Two control valves, 5 communication connection, the controller of the outdoor unit 2 is for controlling each first control valve 4 and the second control valve
5；
The controller of the indoor unit 3 is by sending control instruction to the controller of the outdoor unit 2, to control each
First control valve 4 and the second control valve 5, at this point, recycling step includes:
The controller of first indoor unit sends refrigerant recovering instruction to the controller of outdoor unit, so that the controller of outdoor unit
It controls corresponding first control valve of target indoor unit to close, corresponding second control valve of target indoor unit is opened, wherein the first Room
Interior machine be it is any can be with the indoor unit of outdoor unit normal communication.
In the present embodiment, control instruction is refrigerant recovering instruction, and the indoor unit 3 of air-conditioning is controlled by sending to outdoor unit 2
System instruction is to control each first control valve and the second control valve, and indoor unit 3 is after receiving refrigerant recovering instruction, according to pre-
If control logic, control each first control valve and the second control valve.It, can be by the first control valve whole in order to facilitate control
It is arranged in outdoor unit 2.
In some alternative embodiments, before the step of receiving further include: detecting step；Air-conditioning carries out communication self-test,
Determine whether each indoor unit communicates normally.Under normal conditions, air-conditioning starts to carry out self-test, indoor unit and outdoor after the power-up
Machine communicates with each other, and thinks communication failure occur when outdoor unit can not receive the signal of indoor unit transmission, when any indoor unit
When communication abnormality, communication failure processing is carried out, and/or, provide communication failure prompt.Such as some indoor unit can be with
When outdoor unit normal communication, assert that outdoor unit communication module is normal, there is communication failure in the indoor unit that can not be communicated with outdoor unit,
If all indoor units cannot be communicated with outdoor unit, assert that outdoor unit communication module breaks down, optionally, in the application
Each indoor unit can be each other communication connection, thus if each indoor unit can communicate to each other, and can not be with
Outdoor unit communication, then assert outdoor unit communication failure, can show the indoor unit of communication failure occur on the remote controler of air-conditioning
Number or display outdoor unit failure, air-conditioning can also send failure generation from the server that trend is bound in advance when breaking down
Code obtains the corresponding maintenance mode of fault code from server, and is shown on the display panel or remote controler of air-conditioning, thus side
Just user maintenance.
Optionally, target indoor unit includes one or more indoor units；And/or target indoor unit include can not positive normal open
The failure indoor unit of news.In the application, the refrigerant recovering instruction that any indoor unit issues is for recycling one or more any room
Interior machine can recycle the refrigerant of all indoor units, and target indoor unit can be the first indoor unit, be also possible to other indoor units,
To realize the refrigerant recovering to the indoor unit of communication failure, or it is also possible to any indoor unit and can control part
First control valve and the second control valve, for example each indoor unit is bound two-by-two, any indoor unit can control oneself and
The first control valve corresponding with the indoor unit that it is bound and the second control valve, can also partially solve that the application to be solved asks
Topic.
In some alternative embodiments, recycling step further include: control corresponding first control valve of non-targeted indoor unit
It is closed with the second control valve；Wherein, non-targeted indoor unit is the indoor unit without carrying out refrigerant recovering.
For example, indoor unit 3A failure in Fig. 1 needs to carry out refrigerant recovering to target indoor unit 3A, and air-conditioning is to freeze
Mode operation, then all first control valves are all closed, and second control valve 5B, 5C and 5D is closed, indoor unit non-targeted in this way
There is no refrigerant flowing in (3B, 3C and 3D), the refrigerant of indoor unit 3A is inhaled into outdoor unit completely, if this is done because open
Non-targeted indoor unit, then being inhaled into compressor because of refrigerant in target indoor unit causes target indoor unit to be in low-pressure state, and
Refrigerant flow regime is in other non-targeted indoor units, the refrigerant in non-targeted indoor unit is easily inhaled target indoor unit,
It causes occur refrigerant residual in target indoor unit, the refrigerant in target indoor unit can not be siphoned away completely.
In some alternative embodiments, further includes: stop step, after target indoor unit refrigerant recovering, compression
Machine is shut down, and all first control valves and the second control valve are closed after compressor shutdown, is stopped after outdoor unit blower the first duration of delay
Machine.
When shutting down, elder generation's close compressor turns off each control valve to protect compressor, finally closes outdoor unit wind
Machine, the effect of outdoor unit blower is to reduce the temperature of refrigerant in outdoor unit, cold in outdoor unit when just completing refrigerant recovering
The temperature of matchmaker is also very high, and the blower for directly closing outdoor unit at this time will cause outdoor unit overheat, influences outdoor unit service life.
In some alternative embodiments, it presets and saves different remote controller key combination or control parameter group
It closes, any remote controller key combination or the corresponding one or more indoor units of control parameter combination；
It include that remote controller key to be identified combines or including control parameter to be identified in the refrigerant recovering instruction
It is the target that combination, the remote controller key combination to be identified or control parameter to be identified, which combine corresponding indoor unit,
Indoor unit.
For example, the target indoor unit for needing specified needs to recycle when refrigerant recovering instructs is being sent to indoor unit, this
When input the combination of specific remote controller key to select different indoor units, by taking the air-conditioning in Fig. 1 as an example, for example, user use it is distant
It controls device and selects refrigerant recovering function, the selection of remote controler feedback request carries out the target indoor unit of refrigerant recovering, and user is simultaneously at this time
Pressing wind speed key and temperature key indicates selection indoor unit 3A, if pressing wind speed key and swing flap key simultaneously indicates selection indoor unit
3B.For another example, refrigerant recovering function has been selected in user, it is desirable that when selected target indoor unit, user passes through the specific control of input
Parameter processed is to select different indoor units, can be according to (the setting wind of control parameter in table 1 still by taking the air-conditioning in Fig. 1 as an example
Speed, set temperature and setting mode) with the corresponding relationship of target indoor unit determine the corresponding target of control parameter that user inputs
Indoor unit increases button without additional using the advantages of above-mentioned control method, utilizes button existing on remote controler
The selected of target indoor unit is completed, to reduce cost.
The corresponding relationship of table 1 control parameter and target indoor unit
In order to better illustrate the beneficial effect of the application, another embodiment is once proposed.
In the present embodiment on any interior machine, specified separate unit indoor unit or more indoor refrigerant recovering instructions are set,
Compressor and each first control valve and the second control valve are controlled by the controller of air-conditioner outdoor unit, reaches specified separate unit failure
The purpose of indoor unit or more failure indoor unit recycling refrigerants.
It is first powered up, outdoor controller starting；Into communication abnormality detection judgement between each indoor unit and outdoor unit；If
Normal, the then remote control setting refrigerant recovering instruction on any indoor unit is communicated between indoor unit and outdoor unit；Otherwise test section
When part indoor unit communication is normal, then failure indoor unit is handled by disorderly closedown；
Outdoor machine testing judges whether to receive refrigerant recovering signal, if outdoor unit receives refrigerant recovering signal, judge
Whether target indoor unit is specified separate unit indoor unit, when being judged as specified separate unit indoor unit, executes specified separate unit indoor unit
Refrigerant recovering control；
If judge target indoor unit for more indoor units, execution specifies the refrigerant recovering of more indoor units to control；
When carrying out refrigerant recovering, outdoor unit is by charactron or LED shows and entered refrigerant recovering mode, and air-conditioning is to make
Cold mode operation, when target indoor unit is specified separate unit indoor unit, no matter whether the target indoor unit is communicated normally, by force
Refrigerant recovering is carried out for the target indoor unit, corresponding first control valve of the target indoor unit is opened, and the second control valve is closed,
Corresponding first control valve of remaining indoor unit and the second control valve are turned off；Believe when receiving specified X platform indoor unit recycling refrigerant
Number (wherein N represents the interior machine quantity of outdoor unit traction by 1 < X < N, N, and X is integer), no matter whether machine communicates just in Zhi Ding X platform
Often, the X platform indoor unit specified by force carries out refrigerant recovering, specifies the corresponding first control valve opening of X platform indoor unit and the second control
Valve processed is closed, and the first control valve and the second control valve of remaining indoor unit are turned off；Outdoor unit receives communication normal indoor machine
The refrigerant recovering signal of setting, other than controlling the first control valve and the second control valve；The controller of outdoor unit also controls starting
Outdoor unit blower, compressor can be controlled by the controller of outdoor unit with refrigerating operaton, in the application compressor, four-way valve and
Throttling set between indoor unit and outdoor unit, each first control valve can be electric expansion valve.To refrigerant recovering to outdoor
After machine, first stop compressor, compressor closes all second control valves after stopping, the blower of outdoor unit is delayed stopping again, delay
Duration can be 10S or more.Terminate all refrigerant recovering instruction operations and judgement.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of air-conditioning characterized by comprising connect into the compressor (1), outdoor unit (2) and multiple parallel connections of air conditioner loop
Indoor unit (3)；
The first control corresponding with the indoor unit is provided on the connecting line of any indoor unit (3) and the outdoor unit (2)
Valve (4) processed, first control valve (4) are used to control leading to for refrigerant between corresponding indoor unit (3) and the outdoor unit (2)
It is disconnected；
Corresponding with the indoor unit (3) second is provided on the connecting line of any indoor unit (3) and the compressor (1)
Control valve (5), second control valve (5) are used to control leading to for refrigerant between corresponding indoor unit (3) and the compressor (1)
It is disconnected；
Communication connection between the controller of each indoor unit (3) and the controller of the outdoor unit (2)；
Wherein, the controller of any indoor unit (3) can control each first control valve (4) and each second control
Valve (5).
2. air-conditioning according to claim 1, which is characterized in that
The controller of the outdoor unit (2) and each first control valve (4) and each second control valve (5) communication connection,
The controller of the outdoor unit (2) is for controlling each first control valve (4) and each second control valve (5)；
The controller of the indoor unit (3) is by sending control instruction to the controller of the outdoor unit (2), to control each
First control valve (4) and each second control valve (5).
3. a kind of air conditioner coolant recycling and control method, the air-conditioning is such as air-conditioning of any of claims 1-2, spy
Sign is, comprising:
Receiving step, the controller of the first indoor unit receive refrigerant recovering instruction, wherein the refrigerant recovering instruction includes needing
Carry out the target indoor unit of refrigerant recovering；
Corresponding first control valve of controller control target indoor unit of recycling step, first indoor unit is closed, target chamber
Corresponding second control valve of interior machine is opened, and air-conditioning is run in a chiller mode；
Wherein, first indoor unit is any normal indoor unit of communication.
4. air conditioner coolant recycling and control method according to claim 3, which is characterized in that when the air-conditioning is claim
When air-conditioning in 2, the recycling step includes:
The controller of first indoor unit sends the refrigerant recovering instruction to the controller of the outdoor unit, so that the room
Corresponding first control valve of controller control target indoor unit of outer machine is closed, and corresponding second control valve of target indoor unit is beaten
Open, wherein first indoor unit be it is any can be with the indoor unit of outdoor unit normal communication.
5. air conditioner coolant recycling and control method according to claim 4, which is characterized in that also wrap before the step of receiving
It includes:
Detecting step；The air-conditioning carries out communication self-test, determines whether each indoor unit communicates normally.
6. air conditioner coolant recycling and control method according to claim 5, which is characterized in that
When any indoor unit communication abnormality, communication failure processing is carried out, and/or, provide communication failure prompt.
7. according to the described in any item air conditioner coolant recycling and control methods of claim 3-6, which is characterized in that
The target indoor unit includes one or more indoor units；And/or
The target indoor unit include can not normal communication failure indoor unit.
8. according to the described in any item air conditioner coolant recycling and control methods of claim 3-7, which is characterized in that the recycling step
Further include:
It controls corresponding first control valve of non-targeted indoor unit and the second control valve is closed；
Wherein, the non-targeted indoor unit is the indoor unit without carrying out refrigerant recovering.
9. according to the described in any item air conditioner coolant recycling and control methods of claim 3-8, which is characterized in that further include:
Stop step, after target indoor unit refrigerant recovering, compressor shutdown closes all first controls after compressor shutdown
Valve processed and the second control valve, outdoor unit blower be delayed the first duration after shut down.
10. according to the described in any item air conditioner coolant recycling and control methods of claim 3-9, which is characterized in that
Preset and save different remote controller key combination or control parameter combination, any remote controller key combination
Or the corresponding one or more indoor units of control parameter combination；
It include that remote controller key to be identified is combined or combined including control parameter to be identified in the refrigerant recovering instruction,
It is in the target chamber that the remote controller key combination to be identified or control parameter to be identified, which combine corresponding indoor unit,
Machine.
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Application publication date: 20190920 |