CN105066332B - Outdoor unit control method and device - Google Patents
Outdoor unit control method and device Download PDFInfo
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- CN105066332B CN105066332B CN201510432335.5A CN201510432335A CN105066332B CN 105066332 B CN105066332 B CN 105066332B CN 201510432335 A CN201510432335 A CN 201510432335A CN 105066332 B CN105066332 B CN 105066332B
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- Prior art keywords
- way valve
- control signal
- outdoor unit
- temperature
- indoor set
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
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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
- F24F11/70—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
Abstract
The invention discloses a kind of outdoor unit control method and device.Wherein, this method includes：The control signal that control outdoor unit is sent according to indoor set starts work；By detecting the temperature of condenser in outdoor unit, the type of four-way valve installed in outdoor unit is determined, wherein, the type of four-way valve comprises at least：Freeze four-way valve and heating four-way valve；According to the type of the four-way valve of determination and the operational mode of indoor set, the four-way valve control signal matched with operational mode is generated；Outdoor unit is controlled to be worked according to the four-way valve control signal of generation.The present invention solves the type output control signal of indoor machine controller in correlation technique according to the four-way valve of acquiescence, caused by make with the inconsistent time control of indoor set default type the technical problem of mistake when the type of the four-way valve of outdoor unit.
Description
Technical field
The present invention relates to field of air conditioner control, in particular to a kind of outdoor unit control method and device.
Background technology
Four-way valve is indispensable part in air conditioner, by controlling four-way valve energization or no power, can control four
The different mode of communicating of port valve internal pipeline, and then to be mounted with that the air-conditioner set of the four-way valve works in refrigeration mode or system
Heat pattern.According to the powered/not powered corresponding relation worked in air-conditioner set between refrigeration mode/heating mode of four-way valve,
Four-way valve may include two types：Four-way valve and refrigeration four-way valve are heated, wherein, when heating four-way valve gives electric at air-conditioner set
In heating mode, when heating four-way valve does not give electric, air-conditioner set is in refrigeration mode；The air conditioner when refrigeration four-way valve gives electric
Group is in refrigeration mode, and when refrigeration four-way valve does not give electric, air-conditioner set is in heating mode.Different geographic areas is preferably not
The type of same four-way valve.For example, heating four-way valve is used with the country freezed as primary operating mode, and based on heating
Country, the purpose is to reduce to four-way valve to electronic work, reaches the effect for reducing its fault rate using refrigeration four-way valve.
Indoor set is generally adopted by 24V control signals with outdoor unit and connected.When air-conditioner set works, indoor set receives
The operational mode and temperature of user's setting, and then indoor machine controller, such as temperature controller, can be according to the above of user preset
24V control signal is exported to outdoor unit, such as compressor control signal, exogenous wind machine control signal and four-way valve control signal.
After outdoor unit receives above-mentioned control signal, according to above-mentioned control signal startup optimization.But before above-mentioned control must have one
Carry, i.e.,：On the type of four-way valve in outdoor unit, indoor machine controller must be unified in advance with outdoor controller.It is however, related
In technology, typically unified in advance with outdoor controller to cause indoor machine controller according to market custom, i.e., usual root
According to the difference of sales territory, the type of four-way valve corresponding to installation in outdoor unit, and default setting four-way in machine indoors
The type of valve so that indoor set sends four-way valve control signal according to the type of the four-way valve of acquiescence.However, when replacing outdoor unit
When installation two types four-way valve in the type error or outdoor unit of four-way valve is given tacit consent in the type or indoor set of middle four-way valve,
Indoor set possibly can not be correctly controlled the four-way valve in outdoor unit so that unit operation is abnormal.
For it is above-mentioned the problem of, not yet propose effective solution at present.
The content of the invention
The embodiments of the invention provide a kind of outdoor unit control method and device, at least to solve indoor set in correlation technique
Controller according to the type output control signal of the four-way valve of acquiescence, caused by when outdoor unit four-way valve type with it is indoor
The technical problem of mistake is made in the inconsistent time control of machine default type.
One side according to embodiments of the present invention, there is provided a kind of outdoor unit control method, including：Control outdoor unit is pressed
Start work according to the control signal that indoor set is sent；By detecting the temperature of condenser in outdoor unit, determine to install in outdoor unit
Four-way valve type, wherein, the type of four-way valve comprises at least：Freeze four-way valve and heating four-way valve；According to the four of determination
The type of port valve and the operational mode of indoor set, generate the four-way valve control signal matched with operational mode；Control outdoor unit is pressed
Worked according to the four-way valve control signal of generation.
Further, by detecting the temperature of condenser in outdoor unit, the type of four-way valve installed in outdoor unit is determined
Including：The first temperature and second temperature of condenser in outdoor unit are detected, wherein, the first temperature is that outdoor unit startup work is preset
The temperature of duration post-condenser, second temperature are the temperature that outdoor unit starts condenser before work；Comparison obtain the first temperature with
The magnitude relationship of second temperature；The control signal and magnitude relationship sent according to indoor set, judge the class of four-way valve in outdoor unit
Type.
Further, the control signal that indoor set is sent includes the first four-way valve control signal, wherein, according to indoor set
The control signal and magnitude relationship sent, judging the type of four-way valve in outdoor unit includes：When the first four-way valve control signal is
High level and when the first temperature is more than second temperature, it is refrigeration four-way valve to judge four-way valve；When the first four-way valve control signal is
High level and when the first temperature is not more than second temperature, it is heating four-way valve to judge four-way valve；When the first four-way valve control signal
When being more than second temperature for zero level and the first temperature, it is heating four-way valve to judge four-way valve；When the first four-way valve control signal
When being not more than second temperature for zero level and the first temperature, it is refrigeration four-way valve to judge four-way valve.
Further, matched according to the type of the four-way valve of determination and the operational mode of indoor set, generation with operational mode
Four-way valve control signal include：When it is determined that four-way valve is that to heat the operational mode of four-way valve and indoor set be refrigeration mode,
Generate the four-way valve control signal of zero level；When it is determined that four-way valve is that to heat the operational mode of four-way valve and indoor set be heating
During pattern, the four-way valve control signal of high level is generated；When it is determined that four-way valve is the operational mode of heating four-way valve and indoor set
After entering defrost pattern for heating mode and outdoor unit, the four-way valve control signal of zero level is generated；When it is determined that four-way valve is system
When the operational mode of cold four-way valve and indoor set is refrigeration mode, the four-way valve control signal of high level is generated；When it is determined that four-way
Valve is to freeze the operational mode of four-way valve and indoor set when being heating mode, generates the four-way valve control signal of zero level；When true
It is that the freeze operational mode of four-way valve and indoor set is heating mode and after outdoor unit enters defrost pattern to determine four-way valve, generation
The four-way valve control signal of high level.
Further, in the temperature by detecting condenser in the outdoor unit, four installed in the outdoor unit are determined
After the type of port valve, method also includes：Store the type of the four-way valve got.
Further, before the control signal that control outdoor unit is sent according to indoor set starts work, method also includes：
Judge whether to have prestored the type of four-way valve in outdoor unit；The situation of the type of four-way valve has been prestored in outdoor unit
Under, the type of four-way valve and the operational mode of indoor set according to determination are directly performed, generates the four-way matched with operational mode
The step of valve control signal.
Another aspect according to embodiments of the present invention, a kind of outdoor unit control device is additionally provided, including：First control mould
Block, the control signal for controlling outdoor unit to be sent according to indoor set start work；Processing module, for by detecting outdoor unit
The temperature of middle condenser, the type of four-way valve installed in outdoor unit is determined, wherein, the type of four-way valve comprises at least：Refrigeration
Four-way valve and heating four-way valve；Generation module, for the type of the four-way valve according to determination and the operational mode of indoor set, generation
The four-way valve control signal matched with operational mode；Second control module, for controlling four-way valve control of the outdoor unit according to generation
Signal work processed.
Further, processing module includes：Detection unit, for detecting the first temperature and second of condenser in outdoor unit
Temperature, wherein, the first temperature is the temperature that outdoor unit starts work preset duration post-condenser, and second temperature starts for outdoor unit
The temperature of condenser before work；Comparing unit, the magnitude relationship of the first temperature and second temperature is obtained for comparing；Judge single
Member, for the control signal and magnitude relationship sent according to indoor set, judge the type of four-way valve in outdoor unit.
Further, the control signal that indoor set is sent includes the first four-way valve control signal, wherein, judging unit bag
Include：First judgment sub-unit, for when the first four-way valve control signal is that high level and the first temperature are more than second temperature,
Judge four-way valve for the four-way valve that freezes；Second judgment sub-unit, for being high level and first when the first four-way valve control signal
When temperature is not more than second temperature, four-way valve is judged to heat four-way valve；3rd judgment sub-unit, for when the first four-way valve control
When signal processed is that zero level and the first temperature are more than second temperature, it is heating four-way valve to judge four-way valve；4th judges that son is single
Member, for when the first four-way valve control signal is zero level and the first temperature is not more than second temperature, judging four-way valve for system
Cold four-way valve.
Further, generation module includes：First generation subelement, for when determine four-way valve for heating four-way valve and
When the operational mode of indoor set is refrigeration mode, the four-way valve control signal of zero level is generated；Second generation subelement, for working as
When to determine four-way valve be that to heat the operational mode of four-way valve and indoor set be heating mode, the four-way valve control of high level is generated
Signal；3rd generation subelement, for when determining that four-way valve is that to heat the operational mode of four-way valve and indoor set be heating mould
After formula and outdoor unit enter defrost pattern, the four-way valve control signal of zero level is generated；4th generation subelement, for when true
It is to freeze the operational mode of four-way valve and indoor set when being refrigeration mode to determine four-way valve, generates the four-way valve control letter of high level
Number；5th generation subelement, for when determining that four-way valve is that the freeze operational mode of four-way valve and indoor set is heating mode
When, generate the four-way valve control signal of zero level；6th generation subelement, for when determine four-way valve for refrigeration four-way valve and
The operational mode of indoor set is that the four-way valve control signal of high level is generated after heating mode and outdoor unit enter defrost pattern.
Further, device also includes：Memory module, for storing the type of the four-way valve got.
Further, device also includes：Judge module, for judging whether to have prestored the class of four-way valve in outdoor unit
Type；3rd control module, in the case of the type for having prestored four-way valve in outdoor unit, directly perform generation module
Function.
In embodiments of the present invention, the control signal sent using control outdoor unit according to indoor set starts the side of work
Formula, by detecting the temperature of condenser in outdoor unit, the type of four-way valve installed in outdoor unit is determined, wherein, four-way valve
Type comprises at least：Freeze four-way valve and heating four-way valve, has reached the fortune of the type and indoor set according to the four-way valve of determination
Row mode, the purpose of the four-way valve control signal matched with operational mode is generated, it is achieved thereby that control outdoor unit is according to four-way
The technique effect of valve control signal work, and then solve in correlation technique indoor machine controller according to the class of the four-way valve of acquiescence
Type output control signal, caused by make mistake when type and the inconsistent time control of indoor set default type of the four-way valve of outdoor unit
Technical problem.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the flow chart of according to embodiments of the present invention one outdoor unit control method；
Fig. 2 is according to embodiments of the present invention one air-conditioning system structural representation；
Fig. 3 is a kind of flow chart of according to embodiments of the present invention one optional outdoor unit control method；And
Fig. 4 is the structural representation of according to embodiments of the present invention two outdoor unit control device.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, it should all belong to the model that the present invention protects
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
Embodiment one
According to embodiments of the present invention, there is provided a kind of embodiment of the method for outdoor unit control method, it is necessary to explanation,
The step of flow of accompanying drawing illustrates can perform in the computer system of such as one group computer executable instructions, also,
, in some cases, can be with different from shown in order execution herein although showing logical order in flow charts
The step of going out or describing.
Fig. 1 is outdoor unit control method according to embodiments of the present invention, as shown in figure 1, this method comprises the following steps：
Step S102, the control signal that control outdoor unit is sent according to indoor set start work；
In above-mentioned steps S102 of the present invention, acquiescence has a four-way valve-type in indoor set, and indoor set is according to the four-way of acquiescence
Valve-type sends control signal to outdoor unit, the control signal that indoor set is sent can include it is following any one：Compressor control
Signal processed, exogenous wind machine control signal, four-way valve control signal.
Step S104, by detecting the temperature of condenser in outdoor unit, the type of four-way valve installed in outdoor unit is determined,
Wherein, the type of four-way valve comprises at least：Freeze four-way valve and heating four-way valve；
In above-mentioned steps S104 of the present invention, condenser is the parts of refrigeration system, for condensing the refrigeration in air conditioner
Medium.Four-way valve is installed in outdoor unit, is indispensable part in refrigeration plant, for electricity and not to electric two kinds of shapes
Unit is set to form two circulations of heating and refrigeration respectively under state.It can be seen from the type of four-way valve, if four-way valve is system during to electricity
Then unit heats hot four-way valve, and unit freezes if four-way valve is refrigeration four-way valve；If four-way valve is heating four-way when not giving electric
Then unit freezes valve, and unit heats if four-way valve is refrigeration four-way valve.Whether four-way valve can be sent to electricity by indoor set
Control signal in judge for the voltage of the control signal of four-way valve.After step S102 is performed, the compression in outdoor unit
The control signal that machine, four-way valve, blower fan are sent according to indoor set works, it can be seen from refrigeration principle, one section of compressor operating
After time, if air-conditioner set works in heating mode, then the temperature of condenser can reduce in outdoor unit, if air-conditioner set
Work in refrigeration mode, then the temperature of condenser can raise in outdoor unit.So according to the temperature and four-way valve of condenser
Whether electricity is given, the type of four-way valve can be obtained.
Step S106, according to the type of the four-way valve of determination and the operational mode of indoor set, generation matches with operational mode
Four-way valve control signal；
In above-mentioned steps S106 of the present invention, the operational mode such as refrigeration mode and heating mode of indoor set, indoor set
Operational mode the signal of outdoor unit can be issued by indoor set determine.When in the four-way valve-type and outdoor unit given tacit consent in indoor set
During the four-way valve Type-Inconsistencies of actual installation, the control effect and indoor set for the four-way valve control signal that indoor set is sent are actual
Operational mode simultaneously mismatches, and therefore, after the four-way valve-type installed in determining outdoor unit, outdoor controller can basis
The operational mode of indoor set and the type generation four-way valve control signal of outdoor unit four-way valve.
Step S108, control outdoor unit work according to the four-way valve control signal of generation.
In above-mentioned steps S108 of the present invention, by controlling outdoor unit to be worked according to the four-way valve control signal of generation, make
Obtain effect caused by four-way valve real work in outdoor unit with operational mode to match, and then ensure that the normal fortune of air-conditioning system
OK.
Operational mode is temporarily ignored by above-mentioned steps S102 to step S108, outdoor unit, makes to load directly in outdoor unit
Connect the control signal sent according to indoor set to work, and by detecting the temperature of outdoor unit work a period of time post-condenser, sentence
Break and the type for the four-way valve installed in outdoor unit, realize the four-way valve-type obtained according to judgement, regenerate four-way valve
Control signal so that four-way valve control signal matches with indoor set operational mode, solve when indoor set and outdoor unit on
Four-way valve-type is not consistent the problem of mistake is made in time control.
In embodiments of the present invention, the control signal sent using control outdoor unit according to indoor set starts the side of work
Formula, by detecting the temperature of condenser in outdoor unit, the type of four-way valve installed in outdoor unit is determined, wherein, four-way valve
Type comprises at least：Freeze four-way valve and heating four-way valve, has reached the fortune of the type and indoor set according to the four-way valve of determination
Row mode, the purpose of the four-way valve control signal matched with operational mode is generated, it is achieved thereby that control outdoor unit is according to generation
The work of four-way valve control signal technique effect, and then solve in correlation technique indoor machine controller according to the four-way of acquiescence
The type output control signal of valve, caused by when outdoor unit four-way valve type and the inconsistent time control of indoor set default type
Make the technical problem of mistake.Reach so that outer machine controller is not knowing interior machine controller gives tacit consent to the type of which kind of four-way valve
In the case of, the technique effect that still can correctly be controlled four-way valve according to the control signal of interior machine controller improves
Compatibility of the outer machine to interior machine control method.
Alternatively, step S104：By detecting the temperature of condenser in outdoor unit, the four-way valve installed in outdoor unit is determined
Type include：
Step S1042：The first temperature and second temperature of condenser in outdoor unit are detected, wherein, the first temperature is outdoor
Machine starts the temperature of work preset duration post-condenser, and second temperature is the temperature that outdoor unit starts condenser before work；
, can be cold by temperature-sensitive bag or the temperature sensor detection being installed in outdoor unit in above-mentioned steps S1042 of the present invention
The temperature of condenser.Preset duration is optionally 3min, herein it should be noted that the time length of preset duration is to be suitable for
Preferably, preset duration it is too short it is possible that system temperature do not set up caused by erroneous judgement, preset when it is oversize, may influence
The operation of air-conditioning system subsequent logic.
Step S1044：Comparison obtains the magnitude relationship of the first temperature and second temperature；
Step S1046：The control signal and magnitude relationship sent according to indoor set, judge the class of four-way valve in outdoor unit
Type.
In above-mentioned steps S1046 of the present invention, the magnitude relationship of the first temperature and second temperature, it may include the first temperature is big
It is not more than second temperature in second temperature and the first temperature.It can be seen from refrigeration principle, compressor operating for a period of time after,
If air-conditioner set works in heating mode, then the magnitude relationship of the first temperature and second temperature can be：First temperature is little
In second temperature；If air-conditioner set works in refrigeration mode, then the magnitude relationship of the first temperature and second temperature can be：The
One temperature is more than second temperature.Four-way valve control signal is comprised at least in the control signal that indoor set is sent, according to indoor set
The four-way valve control signal and the magnitude relationship of the first temperature and second temperature sent, can obtain the type of four-way valve.
A kind of temperature by detecting condenser in outdoor unit is provided by above-mentioned steps S1042 to step S1046, really
Determine the method for the type for the four-way valve installed in outdoor unit, by detecting the first temperature and second temperature, and sent out according to indoor set
The control signal and the magnitude relationship of the first temperature and second temperature come, judge the type of four-way valve.
Alternatively, the control signal that indoor set is sent includes the first four-way valve control signal, wherein, step S1046：Root
The control signal and magnitude relationship sent according to indoor set, judging the type of four-way valve in outdoor unit includes：
Step S1046a：When the first four-way valve control signal is high level and the first temperature is more than second temperature, judge
Four-way valve is refrigeration four-way valve；
Step S1046b：When the first four-way valve control signal is high level and the first temperature is not more than second temperature, sentence
Four-way valve is determined for heating four-way valve；
Step S1046c：When the first four-way valve control signal is zero level and the first temperature is more than second temperature, judge
Four-way valve is heating four-way valve；
Step S1046d：When the first four-way valve control signal is zero level and the first temperature is not more than second temperature, sentence
Four-way valve is determined for refrigeration four-way valve.
A kind of control signal sent according to indoor set and big is provided by above-mentioned steps S1046a to step S1046d
Small relation, judge the method for the type of four-way valve in outdoor unit, the first four-way valve control signal sent by judging indoor set
For high level or low level, judge that whether four-way valve is to electricity in preset period of time, and then according to preset period of time inner condenser
Temperature, determine the type of four-way valve.It can be said that above-mentioned steps S1046a to step S1046d establishes four-way valve control signal
Corresponding relation between level, condenser temperature variation tendency and four-way valve-type.The corresponding relation can be pre-stored within room
In outer machine controller, inquiry operation is can perform when needed.
Alternatively, step S106:According to the type of the four-way valve of determination and the operational mode of indoor set, generation and operation mould
The four-way valve control signal of formula matching includes：
Step S106a:It is raw when it is determined that four-way valve is that to heat the operational mode of four-way valve and indoor set be refrigeration mode
Into the four-way valve control signal of zero level；
Step S106b:It is raw when it is determined that four-way valve is that to heat the operational mode of four-way valve and indoor set be heating mode
Into the four-way valve control signal of high level；
Step S106c:When it is determined that four-way valve is that to heat the operational mode of four-way valve and indoor set be heating mode and room
After outer machine enters defrost pattern, the four-way valve control signal of zero level is generated；
Step S106d:When it is determined that four-way valve be freeze the operational mode of four-way valve and indoor set be refrigeration mode when, it is raw
Into the four-way valve control signal of high level；
Step S106e:When it is determined that four-way valve be freeze the operational mode of four-way valve and indoor set be heating mode when, it is raw
Into the four-way valve control signal of zero level；
Step S106f:When it is determined that it is heating mode and room that four-way valve, which is the freeze operational mode of four-way valve and indoor set,
After outer machine enters defrost pattern, the four-way valve control signal of high level is generated.
A kind of type and indoor set of the four-way valve according to determination are provided by above-mentioned steps S106a to step S106f
Operational mode, generate the method for four-way valve control signal matched with operational mode.Above-mentioned steps establish four-way valve-type,
Corresponding relation between indoor set operational mode and the four-way valve control signal level of matching.The corresponding relation can be prestored
In outdoor controller, inquiry operation is can perform when needed.
Alternatively, in step S104：According to four-way valve control signal and magnitude relationship, the class of four-way valve in outdoor unit is obtained
After type, outdoor unit control method according to embodiments of the present invention also includes：
Step S105：Store the type of the four-way valve got.
The type of the four-way valve drawn according to such scheme, is remembered by outdoor unit.The means of storage have a variety of, example
Such as, the four-way valve-type got is stored in the internal memory of outer machine controller, or be stored in the storage chip set up, such as IC
24C02 chip-storeds.As long as storage content can identify four-way valve-type, for example, 0 represents heating, 1 represents refrigeration.Again
For example, 01 represents heating, 10 represent refrigeration, and 00 and 11 can be used for identifying whether the other fortune for changing four-way valve or air-conditioning system
Row state.
Alternatively, in step S102：Before the control signal that control outdoor unit is sent according to indoor set starts work, according to
The outdoor unit control method of the embodiment of the present invention also includes：
Step S1012：Judge whether to have prestored the type of four-way valve in outdoor unit；
Step S1014：In the case of the type that four-way valve has been prestored in outdoor unit, directly perform according to determination
The type of four-way valve and the operational mode of indoor set, generate matched with operational mode four-way valve control signal the step of.
When outdoor unit has the function of memory four-way valve-type, after outdoor unit works on power again, can first carry out
The step of judging whether to have prestored the type of four-way valve in outdoor unit, when judge in outdoor unit without storage four-way valve
When, step S102 to step S108 is performed, when judging to have in outdoor unit storage four-way valve, performs step S106 and step
S108.By above-mentioned steps S1012 and step S1014, realize it has been determined that after four-way valve-type, when outdoor unit again
When working on power, it is not repeated to perform the step of judging four-way valve-type, has saved the resource of outdoor controller, improved control
Efficiency processed.
Fig. 2 is according to embodiments of the present invention one air-conditioning system structural representation；As shown in Fig. 2 the air-conditioning system includes
Indoor set and outdoor unit, wherein, there are indoor machine controller, such as the temperature controller shown in Fig. 2 in indoor set；Had family in outdoor unit
Outer machine controller, and compressor, blower fan, four-way valve, the condenser etc. being installed in outdoor unit.Between indoor set and outdoor unit
24V control signals can be used to connect.The workflow of the air-conditioning system also can be as shown in Fig. 2 i.e. temperature controller be set according to user
Fixed pattern and design temperature, indoor temperature, export 24V compressor control signal, exogenous wind machine control signal and four-way valve
Control signal controls outer machine.Outdoor controller receive indoor set send compressor control signal, exogenous wind machine control signal and
Four-way valve control signal, and the above three control signal sent according to indoor set, after the control logic conversion of itself,
Compressor control signal, exogenous wind machine control signal and four-way valve control signal are regenerated, for controlling load.It is real in the application
In a kind of optional application scenarios for applying example, indoor set not directly control load, such as blower fan, compressor, four-way valve etc.；But by
Outdoor unit generates foregoing three signals.And outdoor controller regenerates the condition of foregoing three signals except the control of interior machine
Outside signal, it is also necessary to detect the temperature of condenser, judged by the temperature of condenser.The specific control flow of the system
Can be as shown in Figure 3.
Fig. 3 is a kind of flow chart of according to embodiments of the present invention one optional outdoor unit control method；With reference to Fig. 2 and figure
Shown in 3, the flow of outdoor unit control method is including as follows：
Step A：On outer machine after electricity, outdoor unit condenser temperature T2 is detected.
Specifically, in above-mentioned steps A, condenser temperature can be detected by temperature sensor, outdoor controller receives
The condenser temperature T2 detected；
Step B：Judge whether to determine four-way valve-type.
Specifically, in above-mentioned steps B, can judge to arrange whether to store in memory in outdoor unit by detection to have an agreement
The data of type, for example, whether agreement storage region is stored with data 01 or 10, wherein, 01 represents heating, and 10 represent refrigeration.
When appointment data be present in agreement storage region, it is believed that can determine the type of four-way valve, that is, can determine in outdoor unit
Four-way valve is refrigeration four-way valve or heating four-way valve.
Step C：When judging not can determine that four-way valve type in step B, the control signal of detection temperature controller output, control
Outdoor unit processed is run according to the control signal of temperature controller.
Specifically, temperature controller output control signal can include compressor control signal, exogenous wind machine control signal and
Four-way valve control signal.
Step D：After operation three minutes, outdoor unit condenser temperature T1 is detected.
Herein it should be noted that three minutes are exemplary preset duration, the present invention is not limited in any way.
Step E：Judge whether T1 is more than T2.After judging three minutes, the temperature of outdoor condenser be rise or under
Drop, whether compressor operating post-condenser temperature is more than the temperature of condenser before compressor operating in other words.
Step F：When judging that T1 is more than T2 in step E, detection temperature controller output four-way valve control signal whether be
24V。
Step G：When judging that T1 is not more than T2 in step E, whether the four-way valve control signal of detection temperature controller output
For 24V.
Herein it should be noted that in above-mentioned steps F and step G, when four-way valve control signal is 24V, it can be considered
Four-way valve control signal is high level, and when four-way valve control signal is not 24V, can be considered four-way valve control signal is zero electricity
It is flat.
Step H：When it is 24V that four-way valve control signal is detected in step F, or when detecting four-way valve in step G
When control signal is not 24V, judge four-way valve for the four-way valve that freezes.
Step I：When it is not 24V that four-way valve control signal is detected in step F, or when detecting four-way in step G
When valve control signal is 24V, four-way valve is judged to heat four-way valve.
Step J：Store four-way valve-type.Specifically, different pieces of information can be used to identify different four-way valve-types.
Step K：According to operational mode and four-way valve-type, new four-way valve control signal is generated, control outdoor unit is according to new
Four-way valve control signal works.
Specifically, in above-mentioned steps K, memory unit still heats four-way valve for refrigeration four-way valve, and runs thereafter
Pattern and defrost logic are judged according to the four-way valve state detected.If it is judged that four-way valve is heating four-way valve,
Then control four-way valve to close when operational mode is refrigeration mode, control four-way valve to open when operational mode is heating mode, run mould
Formula is that heating mode and outer machine control four-way valve to close when entering defrost pattern.If it is judged that four-way valve is refrigeration four-way valve, then
Control four-way valve to open when operational mode is refrigeration mode, control four-way valve to close when operational mode is heating mode, operational mode
Control four-way valve is opened when entering defrost pattern for heating mode and outer machine.
By outdoor unit control method provided in an embodiment of the present invention, existed according to refrigeration four-way valve and heating four-way valve unit
Freeze different with the controller signals that temperature controller under heating mode exports, with reference to the change of outdoor condenser temperature when just starting shooting
It is judged as freezing four-way valve and heats four-way valve unit, so by changing control method, does not increase hardware cost and can be achieved
The outer machine controller of refrigeration four-way valve and heating four-way valve is general, reduces the workload of design.
Embodiment two
According to embodiments of the present invention, a kind of device embodiment of outdoor unit control device, outdoor unit control are additionally provided
Device is mainly used in performing the outdoor unit control method that the embodiment of the present invention is provided, the outdoor that the above embodiment of the present invention provides
Machine control method can also be performed by the outdoor unit control device.The outdoor unit control provided below the embodiment of the present invention
Device processed does specific introduction, and repeating no more for explanation was carried out in the inventive method embodiment.
Fig. 4 is the structural representation of according to embodiments of the present invention two outdoor unit control device, as shown in figure 4, according to this
The outdoor unit control device of inventive embodiments includes：First control module 10, processing module 20, generation module 30 and second are controlled
Molding block 40, wherein：
First control module 10, the control signal for controlling outdoor unit to be sent according to indoor set start work；
Processing module 20, for the temperature by detecting condenser in outdoor unit, determine the four-way valve installed in outdoor unit
Type, wherein, the type of four-way valve comprises at least：Freeze four-way valve and heating four-way valve；
Generation module 30, for the type of the four-way valve according to determination and the operational mode of indoor set, generation and operation mould
The four-way valve control signal of formula matching；
Second control module 40, for controlling outdoor unit to be worked according to the four-way valve control signal of generation.
Pass through above-mentioned first control module 10, processing module 20, the control module 40 of generation module 30 and second, using control
Outdoor unit processed is in the way of the control signal that indoor set is sent starts work, by detecting the temperature of condenser in outdoor unit,
The type of four-way valve installed in outdoor unit is determined, wherein, the type of four-way valve comprises at least：Freeze four-way valve and heating four-way
Valve, reach the operational mode of the type and indoor set according to the four-way valve of determination, generate the four-way valve matched with operational mode
The purpose of control signal, it is achieved thereby that the technique effect that control outdoor unit works according to the four-way valve control signal of generation, enters
And solve the type output control signal of indoor machine controller in correlation technique according to the four-way valve of acquiescence, caused by work as room
The type of the four-way valve of outer machine makes the technical problem of mistake with the inconsistent time control of indoor set default type.Reach and caused outer machine control
Device processed, still can be according to the control of interior machine controller in the case where not knowing the type which kind of four-way valve interior machine controller gives tacit consent to
The technique effect that signal processed is correctly controlled four-way valve, improve compatibility of the outer machine to interior machine control method.
Alternatively, processing module 20 includes：Detection unit, comparing unit and judging unit, wherein：
Detection unit, for detecting the first temperature and second temperature of condenser in outdoor unit, wherein, the first temperature is room
Outer machine starts the temperature of work preset duration post-condenser, and second temperature is the temperature that outdoor unit starts condenser before work；
Comparing unit, the magnitude relationship of the first temperature and second temperature is obtained for comparing；
Judging unit, for the control signal and magnitude relationship sent according to indoor set, judge four-way valve in outdoor unit
Type.
By above-mentioned detection unit, comparing unit and judging unit, there is provided one kind is condensed by detecting in outdoor unit
The temperature of device, the technical scheme of the type for the four-way valve installed in outdoor unit is determined, by detecting the first temperature and second temperature,
And the control signal and the magnitude relationship of the first temperature and second temperature sent according to indoor set, judge the type of four-way valve.
Alternatively, the control signal that indoor set is sent includes the first four-way valve control signal, wherein, judging unit bag
Include：First judgment sub-unit, the second judgment sub-unit, the 3rd judgment sub-unit and the 4th judgment sub-unit, wherein：
First judgment sub-unit, for being more than the second temperature when the first four-way valve control signal for high level and the first temperature
When spending, judge four-way valve for the four-way valve that freezes；
Second judgment sub-unit, for being not more than second when the first four-way valve control signal for high level and the first temperature
During temperature, four-way valve is judged to heat four-way valve；
3rd judgment sub-unit, for being more than the second temperature when the first four-way valve control signal for zero level and the first temperature
When spending, four-way valve is judged to heat four-way valve；
4th judgment sub-unit, for being not more than second when the first four-way valve control signal for zero level and the first temperature
During temperature, judge four-way valve for the four-way valve that freezes.
It is single by above-mentioned first judgment sub-unit, the second judgment sub-unit, the 3rd judgment sub-unit and the 4th judgement
Member, by judging that the first four-way valve control signal that indoor set sends for high level or low level, is judged in preset period of time
Interior four-way valve determines the type of four-way valve whether to electricity, and then according to preset period of time inner condenser temperature.It is it can be said that above-mentioned
First judgment sub-unit, the second judgment sub-unit, the 3rd judgment sub-unit and the 4th judgment sub-unit establish four-way valve control
Corresponding relation between signal level processed, condenser temperature variation tendency and four-way valve-type.The corresponding relation can be deposited in advance
It is stored in outdoor controller, can perform inquiry operation when needed.
Further, generation module 30 includes：First generation subelement, the second generation subelement, the 3rd generation subelement,
4th generation subelement, the 5th generation subelement and the 6th generation subelement, wherein：
First generation subelement, for when determining that four-way valve is that to heat the operational mode of four-way valve and indoor set be refrigeration
During pattern, the four-way valve control signal of zero level is generated；
Second generation subelement, for when determining that four-way valve is that to heat the operational mode of four-way valve and indoor set be heating
During pattern, the four-way valve control signal of high level is generated；
3rd generation subelement, for when determining that four-way valve is that to heat the operational mode of four-way valve and indoor set be heating
After pattern and outdoor unit enter defrost pattern, the four-way valve control signal of zero level is generated；
4th generation subelement, for when determining that four-way valve is that the freeze operational mode of four-way valve and indoor set is refrigeration
During pattern, the four-way valve control signal of high level is generated；
5th generation subelement, for when determining that four-way valve is that the freeze operational mode of four-way valve and indoor set is heating
During pattern, the four-way valve control signal of zero level is generated；
6th generation subelement, for when determining that four-way valve is that the freeze operational mode of four-way valve and indoor set is heating
After pattern and outdoor unit enter defrost pattern, the four-way valve control signal of high level is generated.
Alternatively, device also includes：Memory module, for storing the type of the four-way valve got.
Alternatively, device also includes：Judge module, for judging whether to have prestored the class of four-way valve in outdoor unit
Type；3rd control module, in the case of the type for having prestored four-way valve in outdoor unit, directly perform generation module
Function.
By outdoor unit control device provided in an embodiment of the present invention, existed according to refrigeration four-way valve and heating four-way valve unit
Freeze different with the controller signals that temperature controller under heating mode exports, with reference to the change of outdoor condenser temperature when just starting shooting
It is judged as freezing four-way valve and heats four-way valve unit, so by changing control method, does not increase hardware cost and can be achieved
The outer machine controller of refrigeration four-way valve and heating four-way valve is general, reduces the workload of design.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in some embodiment
The part of detailed description, it may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, others can be passed through
Mode is realized.Wherein, device embodiment described above is only schematical, such as the division of the unit, Ke Yiwei
A kind of division of logic function, can there is an other dividing mode when actually realizing, for example, multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module
Connect, can be electrical or other forms.
The unit illustrated as separating component can be or may not be physically separate, show as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is used as independent production marketing or use
When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme is substantially
The part to be contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are causing a computer
Equipment (can be personal computer, server or network equipment etc.) perform each embodiment methods described of the present invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (12)
- A kind of 1. outdoor unit control method, it is characterised in that including：The control signal that control outdoor unit is sent according to indoor set starts work；By detecting the temperature of condenser in the outdoor unit, the type of four-way valve installed in the outdoor unit is determined, wherein, The type of the four-way valve comprises at least：Freeze four-way valve and heating four-way valve；According to the type of the four-way valve of determination and the operational mode of the indoor set, generate what is matched with the operational mode Four-way valve control signal；The outdoor unit is controlled to be worked according to the four-way valve control signal of generation.
- 2. according to the method for claim 1, it is characterised in that by detecting the temperature of condenser in the outdoor unit, really The type for the four-way valve installed in the fixed outdoor unit includes：The first temperature and second temperature of condenser in the outdoor unit are detected, wherein, first temperature is the outdoor unit The temperature of the condenser after startup work preset duration, the second temperature are that the outdoor unit starts the condensation before work The temperature of device；Compare and obtain the magnitude relationship of first temperature and the second temperature；The control signal and the magnitude relationship sent according to the indoor set, judge the class of four-way valve described in the outdoor unit Type.
- 3. according to the method for claim 2, it is characterised in that the control signal that the indoor set is sent includes the one or four Port valve control signal, wherein, the control signal and the magnitude relationship sent according to the indoor set, judge in the outdoor unit The type of the four-way valve includes：When the first four-way valve control signal is high level and first temperature is more than the second temperature, institute is judged It is the refrigeration four-way valve to state four-way valve；When the first four-way valve control signal is high level and first temperature is not more than the second temperature, judge The four-way valve is the heating four-way valve；When the first four-way valve control signal is zero level and first temperature is more than the second temperature, institute is judged It is the heating four-way valve to state four-way valve；When the first four-way valve control signal is zero level and first temperature is not more than the second temperature, judge The four-way valve is the refrigeration four-way valve.
- 4. according to the method described in claims 1 to 3 any one, it is characterised in that according to the class of the four-way valve of determination The operational mode of type and the indoor set, generating the four-way valve control signal matched with the operational mode includes：When it is determined that the four-way valve is the heating four-way valve and when the operational mode of the indoor set is refrigeration mode, generation The four-way valve control signal of zero level；When it is determined that the four-way valve is the heating four-way valve and when the operational mode of the indoor set is heating mode, generation The four-way valve control signal of high level；When it is determined that the operational mode that the four-way valve is the heating four-way valve and the indoor set is heating mode and described After outdoor unit enters defrost pattern, the four-way valve control signal of zero level is generated；When it is determined that the four-way valve is the refrigeration four-way valve and when the operational mode of the indoor set is refrigeration mode, generation The four-way valve control signal of high level；When it is determined that the four-way valve is the refrigeration four-way valve and when the operational mode of the indoor set is heating mode, generation The four-way valve control signal of zero level；When it is determined that the operational mode that the four-way valve is the refrigeration four-way valve and the indoor set is heating mode and described After outdoor unit enters defrost pattern, the four-way valve control signal of high level is generated.
- 5. according to the method described in claims 1 to 3 any one, it is characterised in that cold in the outdoor unit by detecting The temperature of condenser, after determining the type of four-way valve installed in the outdoor unit, methods described also includes：Store the type of the four-way valve got.
- 6. according to the method described in claims 1 to 3 any one, it is characterised in that in control outdoor unit according to the interior Before the control signal that machine is sent starts work, methods described also includes：Judge whether to have prestored the type of the four-way valve in the outdoor unit；In the case of the type that the four-way valve has been prestored in the outdoor unit, directly perform according to described the four of determination The operational mode of the type of port valve and the indoor set, generate the step of the four-way valve control signal matched with the operational mode Suddenly.
- A kind of 7. outdoor unit control device, it is characterised in that including：First control module, the control signal for controlling outdoor unit to be sent according to indoor set start work；Processing module, for the temperature by detecting condenser in the outdoor unit, determine the four-way installed in the outdoor unit The type of valve, wherein, the type of the four-way valve comprises at least：Freeze four-way valve and heating four-way valve；Generation module, for the type of the four-way valve according to determination and the operational mode of the indoor set, generation with it is described The four-way valve control signal of operational mode matching；Second control module, for controlling the outdoor unit to be worked according to the four-way valve control signal of generation.
- 8. device according to claim 7, it is characterised in that the processing module includes：Detection unit, for detecting the first temperature and second temperature of condenser in the outdoor unit, wherein, first temperature Start the temperature of the condenser after work preset duration for the outdoor unit, the second temperature is that the outdoor unit starts work The temperature of the condenser before work；Comparing unit, the magnitude relationship of first temperature and the second temperature is obtained for comparing；Judging unit, for the control signal sent according to the indoor set and the magnitude relationship, judge in the outdoor unit The type of four-way valve.
- 9. device according to claim 8, it is characterised in that the control signal that the indoor set is sent includes the one or four Port valve control signal, wherein, the judging unit includes：First judgment sub-unit, for being more than institute when the first four-way valve control signal for high level and first temperature When stating second temperature, it is the refrigeration four-way valve to judge the four-way valve；Second judgment sub-unit, for being not more than when the first four-way valve control signal for high level and first temperature During the second temperature, it is the heating four-way valve to judge the four-way valve；3rd judgment sub-unit, for being more than institute when the first four-way valve control signal for zero level and first temperature When stating second temperature, it is the heating four-way valve to judge the four-way valve；4th judgment sub-unit, for being not more than when the first four-way valve control signal for zero level and first temperature During the second temperature, it is the refrigeration four-way valve to judge the four-way valve.
- 10. the device according to any one in claim 7 to 9, it is characterised in that the generation module includes：First generation subelement, for when the operation mould for determining that the four-way valve is the heating four-way valve and the indoor set When formula is refrigeration mode, the four-way valve control signal of zero level is generated；Second generation subelement, for when the operation mould for determining that the four-way valve is the heating four-way valve and the indoor set When formula is heating mode, the four-way valve control signal of high level is generated；3rd generation subelement, for when the operation mould for determining that the four-way valve is the heating four-way valve and the indoor set Formula is that the four-way valve control signal of zero level is generated after heating mode and the outdoor unit enter defrost pattern；4th generation subelement, for when the operation mould for determining that the four-way valve is the refrigeration four-way valve and the indoor set When formula is refrigeration mode, the four-way valve control signal of high level is generated；5th generation subelement, for when the operation mould for determining that the four-way valve is the refrigeration four-way valve and the indoor set When formula is heating mode, the four-way valve control signal of zero level is generated；6th generation subelement, for when the operation mould for determining that the four-way valve is the refrigeration four-way valve and the indoor set Formula is that the four-way valve control signal of high level is generated after heating mode and the outdoor unit enter defrost pattern.
- 11. device according to claim 8, it is characterised in that described device also includes：Memory module, for storing the type of the four-way valve got.
- 12. device according to claim 8, it is characterised in that described device also includes：Judge module, for judging whether to have prestored the type of the four-way valve in the outdoor unit；3rd control module, in the case of the type for having prestored the four-way valve in the outdoor unit, directly hold The function of the row generation module.
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| CN105627507B (en) * | 2015-12-24 | 2019-01-04 | 珠海格力电器股份有限公司 | The control method and device of four-way valve |
| CN105928150A (en) * | 2016-05-05 | 2016-09-07 | 广东美的制冷设备有限公司 | Four-way valve fault detection method and device and air conditioner |
| CN107202402B (en) * | 2017-05-26 | 2019-12-27 | 广东美的制冷设备有限公司 | Air conditioning system and control method thereof |
| CN112283904B (en) * | 2020-09-11 | 2021-12-14 | 海信（山东）空调有限公司 | Air conditioner control system and air conditioner |
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| JP4425655B2 (en) * | 2004-02-04 | 2010-03-03 | 三菱電機株式会社 | Method and apparatus for controlling outdoor unit of air conditioner |
| CN101650064A (en) * | 2008-08-14 | 2010-02-17 | 海尔集团公司 | Low-temperature refrigeration air conditioner and wind speed control method thereof |
| CN104633835A (en) * | 2013-11-14 | 2015-05-20 | 珠海格力电器股份有限公司 | Defrosting control method for air conditioner |
| CN104764240B (en) * | 2014-01-07 | 2018-04-27 | 海尔集团公司 | A kind of air-conditioning system and its control method for possessing defrosting function |
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