CN103925677B - Control method and device of air conditioner - Google Patents
Control method and device of air conditioner Download PDFInfo
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- CN103925677B CN103925677B CN201410183217.0A CN201410183217A CN103925677B CN 103925677 B CN103925677 B CN 103925677B CN 201410183217 A CN201410183217 A CN 201410183217A CN 103925677 B CN103925677 B CN 103925677B
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000002159 abnormal effect Effects 0.000 claims abstract description 70
- 239000003507 refrigerant Substances 0.000 claims abstract description 39
- 238000005057 refrigeration Methods 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims description 61
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 46
- 229910052731 fluorine Inorganic materials 0.000 claims description 46
- 239000011737 fluorine Substances 0.000 claims description 46
- 238000010304 firing Methods 0.000 claims description 26
- 238000004378 air conditioning Methods 0.000 claims description 7
- 230000032258 transport Effects 0.000 claims 1
- 239000006200 vaporizer Substances 0.000 description 21
- 230000000694 effects Effects 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
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Abstract
The invention discloses a control method and a control device of an air conditioner. The control method of the air conditioner comprises the following steps: detecting whether an operating system of an air conditioner is abnormal, wherein the air conditioner uses a flammable refrigerant for refrigeration; if the running system of the air conditioner is detected to be abnormal, controlling the air conditioner to stop; and if the normal operation of the air conditioner is detected, controlling the normal operation of the air conditioner. The invention solves the problem of lower safety when the air conditioner using the flammable refrigerant in the related art operates.
Description
Technical field
The present invention relates to air-conditioner field, in particular to a kind of control method of air-conditioner and device.
Background technology
Existing air-conditioner is used mostly the cold-producing mediums such as R22, R410A, R134A.R22, R410A etc. are non-clean refrigeration
Agent, has destruction to atmospheric ozone layer, therefore, if air-conditioner easily produces greenhouse in a large number using above-mentioned cold-producing medium
Effect.
At present, the global warming up trend such as R290 (i.e. propane), R32 (Global Warming Potential, referred to as
GWP) succedaneum of the relatively low cold-producing medium as cold-producing mediums such as R22, R410A, R134A is applied to air-conditioner.However,
R290, R32 etc. belong to combustible refrigerant, and security requirement when therefore running to this kind of air-conditioner is higher.This is because one
There is leakage of refrigerant failure in denier air-conditioner, then easily produce the potential safety hazards such as burning, blast, safety when causing air-conditioner to run
Property is relatively low.
For used in correlation technique combustible refrigerant air-conditioner run when the relatively low problem of safety, at present not yet
Propose effective solution.
Content of the invention
Present invention is primarily targeted at a kind of control method of air-conditioner and device are provided, to solve to make in correlation technique
Safety relatively low problem when being run with the air-conditioner of combustible refrigerant.
To achieve these goals, according to an aspect of the invention, there is provided a kind of control method of air-conditioner.The party
Method includes：Whether the runtime of detection air-conditioner is abnormal, and wherein, air-conditioner is freezed using combustible refrigerant；If
The runtime exception of air-conditioner is detected, then control air-conditioner is shut down；And if just detect the runtime of air-conditioner
Often, then control air-conditioner normally runs.
Further, runtime includes condensator outlet pipe, evaporator inlet pipe and air outlet, detects the fortune of air-conditioner
Whether row system includes extremely：Judge in the temperature of the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and air outlet
Whether any one or multiple changing values in preset time period are less than the first preset value；If it is judged that condensator outlet
Any one or multiple changes in preset time period in the temperature of the temperature of pipe, the temperature of evaporator inlet pipe and air outlet
Change value is less than the first preset value, it is determined that runtime exception；And if it is judged that the temperature of condensator outlet pipe, vaporizer
In the temperature of the temperature of inlet tube and air outlet, any one or multiple changing values in preset time period are not less than the
One preset value, it is determined that runtime is normal.
Further, runtime includes compressor, detects whether the runtime of air-conditioner includes extremely：Judge compression
Whether machine is opening；If it is judged that compressor is opening, then whether the firing current of detection compressor is less than the
Two preset values；If detecting that the firing current of compressor is less than the second preset value, it is determined that runtime exception；And if
Detect that the firing current of compressor is not less than the second preset value, it is determined that runtime is normal, and/or whether judges compressor
For stopped status；If it is judged that compressor is stopped status, then whether the shutdown electric current of detection compressor is preset more than the 3rd
Value；If detecting that the shutdown electric current of compressor is more than the 3rd preset value, it is determined that runtime exception；And if detect
The shutdown electric current of compressor is not more than the 3rd preset value, it is determined that runtime is normal.
Further, in the runtime whether before exception of detection air-conditioner, control method also includes：Detection operation system
Whether system is operated in refrigeration mode, wherein, if detecting runtime is operated in refrigeration mode, detects the operation of air-conditioner
Whether system is abnormal；If detecting runtime is not operate at refrigeration mode, first control runtime enters refrigeration mode,
Detect whether the runtime of air-conditioner is abnormal again.
Further, after runtime exception is determined, control method also includes：Control air-conditioner is entered receives fluorine mould
Formula；And judge whether air-conditioner has completed to receive fluorine, wherein, if it is judged that air-conditioner has completed to receive fluorine, then control empty
Device is adjusted to shut down.
To achieve these goals, according to a further aspect in the invention, there is provided a kind of control device of air-conditioner.The dress
Put including：Whether the first detector unit, the runtime for detecting air-conditioner are abnormal, and wherein, air-conditioner is using combustibility system
Cryogen is freezed；First control unit, for when the runtime for detecting air-conditioner is abnormal, control air-conditioner is shut down；
And second control unit, for when the runtime for detecting air-conditioner is normal, control air-conditioner normally runs.
Further, runtime includes condensator outlet pipe, evaporator inlet pipe and air outlet, the first detector unit bag
Include：First judge module, for judging in the temperature of the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and air outlet
Whether any one or multiple changing values in preset time period are less than the first preset value；First determining module, for
Judge in the temperature of the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and air outlet any one or multiple
When changing value in preset time period is less than the first preset value, runtime exception is determined；And second determining module, for
Judge in the temperature of the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and air outlet any one or multiple
When changing value in preset time period is not less than the first preset value, determine that runtime is normal.
Further, runtime includes compressor, and the first detector unit includes：Second judge module, for judging pressure
Whether contracting machine is opening；First detection module, for when judging that compressor is opening, detecting opening for compressor
Electric current is opened whether less than the second preset value；3rd determining module, for pre- less than second in the firing current for detecting compressor
If during value, determining runtime exception；And the 4th determining module, for detecting the firing current of compressor not less than the
During two preset values, determine that runtime is normal, and/or the 3rd judge module, for judging whether compressor is stopped status；The
Whether two detection modules, the shutdown electric current for when judging that compressor is stopped status, detecting compressor are pre- more than the 3rd
If value；5th determining module, during for being more than three preset values in the shutdown electric current for detecting compressor, determines that runtime is different
Often；And the 6th determining module, during for being not more than three preset values in the shutdown electric current for detecting compressor, determine operation system
System is normal.
Further, the control device of the air-conditioner also includes：Second detector unit, for the operation in detection air-conditioner
Whether before exception, whether detection runtime is operated in refrigeration mode to system, and wherein, the first detector unit is additionally operable in detection
When refrigeration mode is operated in runtime, detect whether the runtime of air-conditioner is abnormal；3rd control unit, in inspection
When measuring runtime and being not operate at refrigeration mode, first control runtime enters refrigeration mode, then is used by the first detector unit
Whether abnormal in the runtime of detection air-conditioner.
Further, the control device of the air-conditioner also includes：4th control unit, for determining runtime exception
Afterwards, control air-conditioner is entered and receives fluorine pattern；And judging unit, for judging whether air-conditioner has completed to receive fluorine, wherein,
First control unit is additionally operable to when judging that air-conditioner has completed to receive fluorine, and control air-conditioner is shut down.
By the present invention, whether the runtime using detection air-conditioner is abnormal, and wherein, air-conditioner is freezed using combustibility
Agent is freezed；If detecting the runtime exception of air-conditioner, control air-conditioner is shut down；And if detect air-conditioning
The runtime of device is normal, then control air-conditioner normally runs, and solves the air-conditioning of combustible refrigerant used in correlation technique
Safety relatively low problem when device runs, and then reached the effect of the operating air-conditioner safety of raising.
Description of the drawings
The accompanying drawing for constituting the part of the application is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the schematic diagram of the control device of air-conditioner according to a first embodiment of the present invention；
Fig. 2 is the schematic diagram of the control device of air-conditioner according to a second embodiment of the present invention；
Fig. 3 is the flow chart of the control method of air-conditioner according to a first embodiment of the present invention；And
Fig. 4 is the flow chart of the control method of air-conditioner according to a second embodiment of the present invention.
Specific embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combine.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the present invention in detail.
In order that those skilled in the art is better understood from the present invention program, below in conjunction with the embodiment of the present invention in
Accompanying drawing, to the embodiment of the present invention in technical scheme be clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Embodiment in based on the present invention, in ordinary skill
The every other embodiment obtained under the premise of not making creative work by personnel, should all belong to the protection model of the present invention
Enclose.
It should be noted that description and claims of this specification and the term " first " in above-mentioned accompanying drawing, "
Two " it is etc. for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except here diagram or
Order beyond those of description is implemented.Additionally, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included.
Embodiments in accordance with the present invention, there is provided a kind of control device of air-conditioner, the control device of the air-conditioner are used for
Before air-conditioner normally freezes or heats, detect whether the runtime of air-conditioner is abnormal, so as to improve operating sky
Adjust the safety of device.
Fig. 1 is the schematic diagram of the control device of air-conditioner according to a first embodiment of the present invention.
As shown in figure 1, the device includes：First detector unit 10, the first control unit 20 and the second control unit 30.
First detector unit 10 is used for detecting whether the runtime of air-conditioner to be abnormal.
Wherein, air-conditioner can be freezed using combustible refrigerant.As the runtime of air-conditioner can include
The refrigerating operaton system of air-conditioner and the heating operation system of air-conditioner, therefore detect whether the runtime of air-conditioner extremely may be used
Whether abnormal with the heating operation system of the refrigerating operaton system including detection air-conditioner and air-conditioner.
By taking refrigeration system as an example, as the refrigeration system can include compressor, condenser, pipeline and vaporizer, and
Cold-producing medium is a series of by carrying out gaseous state and liquid, high pressure and low pressure etc. in above-mentioned compressor, condenser, pipeline and vaporizer
Conversion and circulation etc. come realize freezing, therefore can pass through to detect in compressor, condenser, pipeline and vaporizer
Individual or multiple whether extremely whether abnormal to detect the runtime of air-conditioner.Wherein, compressor and condenser are air-conditioner
Indoor set part, vaporizer for air-conditioner outdoor machine part, pipeline is the connection being connected between condenser and vaporizer
Part.There is condenser refrigerant outlet pipe, vaporizer there is refrigerant inlet pipe, and condenser is connected to by outlet
Pipeline, vaporizer are connected to pipeline by inlet tube.
If the first control unit 20 is used for the runtime exception for detecting air-conditioner, control air-conditioner is shut down.
Specifically, when detecting that one or more in compressor, condenser, pipeline and vaporizer is abnormal, show
There is the risk for revealing combustible refrigerant in air-conditioner, and if combustible refrigerant is leaked to interior, then can be because of the interior
There is the electrical equipment such as air-conditioner and electric sparking, and electricity sparking can then cause combustible refrigerant to burn, or even explode, therefore, in inspection
Measure one or more in compressor, condenser, pipeline and vaporizer abnormal when, shut down and can cut by controlling air-conditioner
Disconnected risk source, and as air-conditioner has been shut down, therefore will not produce electric sparking, so as to will not be due to the sparking of air-conditioner electricity
Combustible refrigerant is caused to burn, or even blast, so as to improve the safety of operating air-conditioner.
Preferably, when the runtime for detecting air-conditioner is abnormal, the mark corresponding to fault type can be shown, should
Mark can be digital or alphabetical.As such, it is possible to judge the abnormal position of air-conditioner exactly.
Further, control air-conditioner shut down while, can control air-conditioner place Circuits System in other
Electrical equipment is shut down.As such, it is possible to prevent other electrical equipment from causing combustible refrigerant to burn because of electricity sparking, or even blast, so as to carry
The safety of the Circuits System that high operating air-conditioner is located.
Can prevent combustible refrigerant from continuing to reveal in addition, control air-conditioner is shut down, such that it is able to prevent risk source from expanding
Bigization, and then improve the safety of operating air-conditioner.
If the runtime that the second control unit 30 is used for detecting air-conditioner is normal, control air-conditioner is normally transported
OK.
When detecting that compressor, condenser, pipeline and vaporizer are all normal, show that air-conditioner does not have leakage flammable
Property cold-producing medium risk, so as to be not result in combustible refrigerant burn, or even blast.Therefore, it can control air-conditioner normal
Operation.
By the embodiment of the present invention, as when the runtime for detecting air-conditioner is abnormal, air-conditioner can be controlled and is stopped
Machine, causes combustible refrigerant to burn such that it is able to avoid due to the sparking of air-conditioner electricity, or even blast, has therefore reached raising
The effect of the safety of operating air-conditioner.
Preferably, whether the first detector unit 10 can detect the runtime of air-conditioner under the debugging mode of air-conditioner
Abnormal.So-called debugging mode refers to the work for simulating the normal operational mode before air-conditioner enters normal operational mode
Operation mode.Specifically, before starting shooting every time, or whether each preset time period detects the runtime of an air-conditioner
Abnormal, wherein, when the runtime for detecting air-conditioner is normal, can first control air-conditioner and exit debugging mode, in control
Air-conditioner enters normal operation mode.As such, it is possible to find whether the runtime of air-conditioner is abnormal in time, so as to improve operation
In air-conditioner safety.
Preferably, while the runtime for detecting air-conditioner is abnormal, the outer blower fan of air-conditioner can be detected whether
Abnormal.Specifically, it is possible, firstly, to whether rotating speed when detecting that outer blower fan is opened is zero, then, if detecting that outer blower fan is opened
When rotating speed be zero, then blower fan exception；If rotating speed when detecting that outer blower fan is opened is not zero, timing dress can be opened
Put, and in timer for a period of time after, judge that the rotating speed of blower fan whether less than preset rotation speed value, for example, judges blower fan
Rotating speed whether less than 300 turns per point, wherein, if it is determined that the rotating speed of blowing machine is less than preset rotation speed value, then blower fan exception, no
Then blower fan is normal.It should be noted that when blower fan is abnormal, control air-conditioner is shut down, when blower fan is normal, control air-conditioner is just
Often run.
Preferably, while the runtime for detecting air-conditioner is abnormal, the temperature sensor of air-conditioner can be detected
Whether abnormal.Wherein, temperature sensor can include the temperature sensor being arranged on condenser and arrange on an evaporator
Temperature sensor.Specifically, can adopt in (for example, it is possible in continuous 30s) detection temperature sensor in continuous time section
Whether the meansigma methodss of the temperature of sample meet following condition：1) whether, less than default minimum, 2) whether the meansigma methodss for the meansigma methodss
More than default maximum.Wherein, when 1) meansigma methodss meet condition or meet condition 2), then judge the temperature of air-conditioner
Sensor abnormality, otherwise judges that the temperature sensor of air-conditioner is normal.It should be noted that the temperature sensor in air-conditioner
When abnormal, control air-conditioner is shut down, and when the temperature sensor of air-conditioner is normal, control air-conditioner normally runs.In addition, above-mentioned
Continuous time section can by timer when obtain, if 2) 1) condition is unsatisfactory for condition in continuous time section,
Then above-mentioned timer is reset.After above-mentioned timer is reset, with reclocking, and the temperature sensing of air-conditioner can be detected
Whether device is abnormal.
Fig. 2 is the schematic diagram of the control device of air-conditioner according to a second embodiment of the present invention.
As shown in Fig. 2 the embodiment can be used as the preferred implementation of embodiment illustrated in fig. 1, the air-conditioning of the embodiment
The control device of device includes the first detector unit 10, the first control unit 20 and second control unit 30 of first embodiment, its
In, the first detector unit 10 includes the first judge module 101, the first determining module 102 and the second determining module 103.
The effect of the first control unit 20 and the second control unit 30 with identical in first embodiment, here is no longer gone to live in the household of one's in-laws on getting married
State.
It should be noted that in embodiments of the present invention, runtime can include condensator outlet pipe, evaporator
Pipe and air outlet.
First judge module 101 is used for judging the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and air outlet
Temperature in any one or multiple changing values in preset time period whether be less than the first preset value.
It should be noted that the first preset value can include one or more, wherein, the temperature of condensator outlet pipe exists
The temperature of changing value and air outlet of the temperature of changing value, evaporator inlet pipe in preset time period in preset time period exists
Changing value in preset time period can correspond to the first different preset values respectively.
First determining module 102 is used for if it is judged that the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and
In the temperature of air outlet, any one or multiple changing values in preset time period are less than the first preset value, it is determined that operation
System exception.
Preferably, the extremely corresponding failure code of runtime can be shown when runtime exception is determined, wherein
Double eight can be used to show the failure code.For example, the runtime of air-conditioner can correspond to failure code A, condenser extremely
The corresponding failure code of outlet, evaporator inlet pipe and air outlet can be respectively A1, A2, A3.
Second determining module 103 is used for if it is judged that the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and
In the temperature of air outlet, any one or multiple changing values in preset time period are not less than the first preset value, it is determined that
Runtime is normal.
I.e. if it is judged that in the temperature of the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and air outlet arbitrarily
One or more changing value in preset time period is all more than or equal to the first preset value, it is determined that runtime
Normally.
By the embodiment of the present invention, due to can only judge the temperature of the temperature of condensator outlet pipe, evaporator inlet pipe
In the temperature of degree and air outlet, whether any one or multiple changing values in preset time period are less than the first preset value, because
Whether abnormal this simplify runtime the process of detection air-conditioner.
Preferably, in embodiments of the present invention, as runtime can include compressor, therefore the first detector unit 10
Can be also used for detecting whether compressor is abnormal.Wherein, whether the detection of the first detector unit 10 compressor can include one extremely
Under type：
Whether mode one is abnormal to detect runtime in the firing current of opening only by detection compressor.
Specifically, the first detector unit 10 can include that the second judge module, first detection module, the 3rd determining module and the 4th determine
Module.First, the second judge module can be used for detection judge whether compressor is opening；Secondly, first detection module
Can be used for if it is judged that compressor is opening, then whether the firing current of detection compressor is less than the second preset value；
Then, if the 3rd determining module can be used for detecting that the firing current of compressor is less than the second preset value, it is determined that operation
System exception；If the 4th determining module can be used for detecting that the firing current of compressor is not less than the second preset value, really
Determine runtime normal.Wherein it is possible to use the firing current of the first current sensor detection compressor whether pre- less than second
If value.
Whether mode two is abnormal to detect runtime in the shutdown electric current of stopped status only by detection compressor.
Specifically, the first detector unit 10 can include that the 3rd judge module, the second detection module, the 5th determining module and the 6th determine
Module.First, the 3rd judge module can be used for judging whether compressor is stopped status；Secondly, the second detection module can be with
For if it is judged that compressor is stopped status, then whether the shutdown electric current of detection compressor is more than the 3rd preset value；Then,
If the 5th determining module can be used for detecting that the shutdown electric current of compressor is more than the 3rd preset value, it is determined that runtime is different
Often；If the 6th determining module can be used for detecting that the shutdown electric current of compressor is not more than the 3rd preset value, it is determined that operation
System is normal.Wherein it is possible to whether use the firing current of the second current sensor detection compressor less than the second preset value.
Mode three, by simultaneously detect firing current of the compressor in opening and the shutdown electric current in stopped status come
Whether detection runtime is abnormal.First detector unit 10 can include that the second judge module, first detection module, the 3rd determine
Module and the 4th determining module and the 3rd judge module, the second detection module, the 5th determining module and the 6th determining module.Its
In, the effect of the second judge module, first detection module, the 3rd determining module and the 4th determining module with mode one in correspond to
The effect of module, the effect of the 3rd judge module, the second detection module, the 5th determining module and the 6th determining module is with mode two
In respective modules effect, will not be described here.
In the above embodiment of the present invention, the control device can also include：Second detector unit and the 3rd control are single
Unit.Second detector unit can be used for runtime in detection air-conditioner whether before exception, detection runtime whether work
Make in refrigeration mode, wherein, if the first detector unit 10 is additionally operable to detect runtime and is operated in refrigeration mode, detect
Whether the runtime of air-conditioner is abnormal；If the 3rd control unit is not operate at refrigeration mode for detecting runtime,
Then first control runtime enters refrigeration mode, then is used for detecting whether the runtime of air-conditioner is different by the first detector unit 10
Often.
In the above embodiment of the present invention, the control device can also include：4th control unit and judging unit.
First, the 4th control unit can be used for after runtime exception is determined, control air-conditioner is entered receives fluorine mould
Formula.Wherein, when air-conditioner is operated in receipts fluorine pattern, can be by the refrigerant collecting beyond the off-premises station of air-conditioner to off-premises station
In, it is preferable that when the compressor in off-premises station is normal, can be by the refrigerant collecting in off-premises station in compressor.
Preferably, while air-conditioner entrance receipts fluorine pattern is controlled, the aerofluxuss of the interior at air-conditioner place can be controlled
Fan is opened.As such, it is possible to will leak into interior combustible refrigerant exclude, and then air-conditioner repair well after and again
During secondary operation, the safety of air-conditioner can be improved.
Then, judging unit can be used for judging whether air-conditioner has completed to receive fluorine.Specifically, two kinds of sides can be passed through
Formula judges whether air-conditioner has completed to receive fluorine：Mode one, it can be determined that whether the run time for receiving fluorine pattern reaches default fortune
Row time value, if it is judged that the run time for receiving fluorine pattern has reached default operation time, then judges air-conditioner
Complete to receive fluorine；Mode two, if using off-premises station receive fluorine, can detect cold-producing medium circulated flow through in addition to off-premises station
The pressure of cold-producing medium in miscellaneous part, for example, it is possible to the pressure of the cold-producing medium in signal piping, wherein, when detection cold-producing medium institute
When the pressure of cold-producing medium is less than preset pressure value in the miscellaneous part in addition to off-premises station that circulation is flowed through, then judge air-conditioner
Complete to receive fluorine, otherwise air-conditioner is not completed and receives fluorine.And if fluorine is received using compressor, then can detect that cold-producing medium is circulated
The pressure of cold-producing medium in the miscellaneous part in addition to compressor for flowing through, the concrete detection process of pressure receive fluorine with using off-premises station
When pressure detection process, will not be described here.
Wherein, the first control unit 20 can be also used for if it is judged that air-conditioner completed receive fluorine, then control air-conditioning
Device is shut down.And when air-conditioner is not completed and receives fluorine, air-conditioner can be controlled and continue to receive fluorine.If it should be noted that in control
Air-conditioner enters the exhaust fan of the interior for having controlled air-conditioner place while receiving fluorine pattern and opens, then stop in control air-conditioner
After machine, the exhaust fan can be controlled and continue to run with a period of time, can so would leak into the combustible refrigerant row of interior
That removed is cleaner, safer when run so as to air-conditioner again.
Embodiments in accordance with the present invention, there is provided a kind of control method of air-conditioner, the control method of the air-conditioner are used for
Before air-conditioner normally freezes or heats, detect whether the runtime of air-conditioner is abnormal, so as to improve operating sky
Adjust the safety of device.The control method of the air-conditioner is may operate on computer-processing equipment.It should be noted that of the invention
The control method of the air-conditioner provided by embodiment can be executed by the control device of the air-conditioner of the embodiment of the present invention, this
The control device of the air-conditioner of inventive embodiments can be used for the control method of the air-conditioner for executing the embodiment of the present invention.
Fig. 3 is the flow chart of the control method of air-conditioner according to a first embodiment of the present invention.
As shown in figure 3, the method includes steps S302 to step S306：
Step S302, detects whether the runtime of air-conditioner is abnormal.
Wherein, air-conditioner can be freezed using combustible refrigerant.As the runtime of air-conditioner can include
The refrigerating operaton system of air-conditioner and the heating operation system of air-conditioner, therefore detect whether the runtime of air-conditioner extremely may be used
Whether abnormal with the heating operation system of the refrigerating operaton system including detection air-conditioner and air-conditioner.
By taking refrigeration system as an example, as the refrigeration system can include compressor, condenser, pipeline and vaporizer, and
Cold-producing medium is a series of by carrying out gaseous state and liquid, high pressure and low pressure etc. in above-mentioned compressor, condenser, pipeline and vaporizer
Conversion and circulation etc. come realize freezing, therefore can pass through to detect in compressor, condenser, pipeline and vaporizer
Individual or multiple whether extremely whether abnormal to detect the runtime of air-conditioner.Wherein, compressor and condenser are air-conditioner
Indoor set part, vaporizer for air-conditioner outdoor machine part, pipeline is the connection being connected between condenser and vaporizer
Part.There is condenser refrigerant outlet pipe, vaporizer there is refrigerant inlet pipe, and condenser is connected to by outlet
Pipeline, vaporizer are connected to pipeline by inlet tube.
Step S304, if detecting the runtime exception of air-conditioner, control air-conditioner is shut down.
Specifically, when detecting that one or more in compressor, condenser, pipeline and vaporizer is abnormal, show
There is the risk for revealing combustible refrigerant in air-conditioner, and if combustible refrigerant is leaked to interior, then can be because of the interior
There is the electrical equipment such as air-conditioner and electric sparking, and electricity sparking can then cause combustible refrigerant to burn, or even explode, therefore, in inspection
Measure one or more in compressor, condenser, pipeline and vaporizer abnormal when, shut down and can cut by controlling air-conditioner
Disconnected risk source, and as air-conditioner has been shut down, therefore will not produce electric sparking, so as to will not be due to the sparking of air-conditioner electricity
Combustible refrigerant is caused to burn, or even blast, so as to improve the safety of operating air-conditioner.
Preferably, when the runtime for detecting air-conditioner is abnormal, the mark corresponding to fault type can be shown, should
Mark can be digital or alphabetical.As such, it is possible to judge the abnormal position of air-conditioner exactly.
Further, control air-conditioner shut down while, can control air-conditioner place Circuits System in other
Electrical equipment is shut down.As such, it is possible to prevent other electrical equipment electricity sparkings and cause combustible refrigerant to burn, or even blast, so as to improve
The safety of the Circuits System that operating air-conditioner is located.
Can prevent combustible refrigerant from continuing to reveal in addition, control air-conditioner is shut down, such that it is able to prevent risk source from expanding
Bigization, and then improve the safety of operating air-conditioner.
Step S306, if the runtime for detecting air-conditioner is normal, control air-conditioner normally runs.
When detecting that compressor, condenser, pipeline and vaporizer are all normal, show that air-conditioner does not have leakage flammable
Property cold-producing medium risk, so as to be not result in combustible refrigerant burn, or even blast.Therefore, it can control air-conditioner normal
Operation.
By the embodiment of the present invention, as when the runtime for detecting air-conditioner is abnormal, air-conditioner can be controlled and is stopped
Machine, causes combustible refrigerant to burn such that it is able to avoid due to the sparking of air-conditioner electricity, or even blast, has therefore reached raising
The effect of the safety of operating air-conditioner.
Preferably, can detect under the debugging mode of air-conditioner whether the runtime of air-conditioner is abnormal.So-called debugging
Pattern refers to the mode of operation for simulating the normal operational mode before air-conditioner enters normal operational mode.Specifically
Ground, before starting shooting every time, or each preset time period detects whether the runtime of an air-conditioner is abnormal, wherein,
When the runtime for detecting air-conditioner is normal, can first control air-conditioner and exit debugging mode, enter in control air-conditioner
Normal operation mode.As such, it is possible to find whether the runtime of air-conditioner is abnormal in time, so as to improve operating air-conditioner
Safety.
Preferably, while the runtime for detecting air-conditioner is abnormal, the outer blower fan of air-conditioner can be detected whether
Abnormal.Specifically, it is possible, firstly, to whether rotating speed when detecting that outer blower fan is opened is zero, then, if detecting that outer blower fan is opened
When rotating speed be zero, then blower fan exception；If rotating speed when detecting that outer blower fan is opened is not zero, timing dress can be opened
Put, and in timer for a period of time after, judge that the rotating speed of blower fan whether less than preset rotation speed value, for example, judges blower fan
Rotating speed whether less than 300 turns per point, wherein, if it is determined that the rotating speed of blowing machine is less than preset rotation speed value, then blower fan exception, no
Then blower fan is normal.It should be noted that when blower fan is abnormal, control air-conditioner is shut down, when blower fan is normal, control air-conditioner is just
Often run.
Preferably, while the runtime for detecting air-conditioner is abnormal, the temperature sensor of air-conditioner can be detected
Whether abnormal.Wherein, temperature sensor can include the temperature sensor being arranged on condenser and arrange on an evaporator
Temperature sensor.Specifically, can adopt in (for example, it is possible in continuous 30s) detection temperature sensor in continuous time section
Whether the meansigma methodss of the temperature of sample meet following condition：1) whether, less than default minimum, 2) whether the meansigma methodss for the meansigma methodss
More than default maximum.Wherein, when 1) meansigma methodss meet condition or meet condition 2), then judge the temperature of air-conditioner
Sensor abnormality, otherwise judges that the temperature sensor of air-conditioner is normal.It should be noted that the temperature sensor in air-conditioner
When abnormal, control air-conditioner is shut down, and when the temperature sensor of air-conditioner is normal, control air-conditioner normally runs.In addition, above-mentioned
Continuous time section can by timer when obtain, if 2) 1) condition is unsatisfactory for condition in continuous time section,
Then above-mentioned timer is reset.After above-mentioned timer is reset, with reclocking, and the temperature sensing of air-conditioner can be detected
Whether device is abnormal.
Fig. 4 is the flow chart of the control method of air-conditioner according to a second embodiment of the present invention.
As shown in figure 4, the control method of the air-conditioner includes steps S402 to step S410, the embodiment can be with
Preferred implementation as embodiment illustrated in fig. 3.
It should be noted that in embodiments of the present invention, runtime can include condensator outlet pipe, evaporator
Pipe and air outlet.
Step S402, judges to appoint in the temperature of the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and air outlet
Whether one or more changing value in preset time period anticipate less than the first preset value.
It should be noted that the first preset value can include one or more, wherein, the temperature of condensator outlet pipe exists
The temperature of changing value and air outlet of the temperature of changing value, evaporator inlet pipe in preset time period in preset time period exists
Changing value in preset time period can correspond to the first different preset values respectively.
Step S404, if it is judged that the temperature of the temperature of the temperature of condensator outlet pipe, evaporator inlet pipe and air outlet
In degree, any one or multiple changing values in preset time period are less than the first preset value, it is determined that runtime exception.
Preferably, the extremely corresponding failure code of runtime can be shown when runtime exception is determined, wherein
Double eight can be used to show the failure code.For example, the runtime of air-conditioner can correspond to failure code A, condenser extremely
The corresponding failure code of outlet, evaporator inlet pipe and air outlet can be respectively A1, A2, A3.
Step S406, with S304 the step of embodiment illustrated in fig. 3, will not be described here.
Step S408, if it is judged that the temperature of the temperature of the temperature of condensator outlet pipe, evaporator inlet pipe and air outlet
In degree, any one or multiple changing values in preset time period are not less than the first preset value, it is determined that runtime is just
Often.
I.e. if it is judged that in the temperature of the temperature of condensator outlet pipe, the temperature of evaporator inlet pipe and air outlet arbitrarily
One or more changing value in preset time period is all more than or equal to the first preset value, it is determined that runtime
Normally.
Step S410, with S306 the step of embodiment illustrated in fig. 3, will not be described here.
By the embodiment of the present invention, due to can only judge the temperature of the temperature of condensator outlet pipe, evaporator inlet pipe
In the temperature of degree and air outlet, whether any one or multiple changing values in preset time period are less than the first preset value, because
Whether abnormal this simplify runtime the step of detection air-conditioner.
Preferably, in embodiments of the present invention, as runtime can include compressor, therefore the fortune of air-conditioner is detected
Whether row system can include extremely：Whether detection compressor is abnormal.Wherein, whether detection compressor can include extremely
Mode：
Whether mode one is abnormal to detect runtime in the firing current of opening only by detection compressor.
Specifically, first, detection judges whether compressor is opening；Secondly, if it is judged that compressor is opening, then examine
Whether the firing current of measured compressed machine is less than the second preset value；Then, if detecting that the firing current of compressor is less than second
Preset value, it is determined that runtime exception；If detecting that the firing current of compressor is not less than the second preset value, it is determined that fortune
Row system is normal.Wherein it is possible to whether use the firing current of the first current sensor detection compressor less than the second preset value.
Whether mode two is abnormal to detect runtime in the shutdown electric current of stopped status only by detection compressor.
Specifically, first, it is determined that whether compressor is stopped status；Secondly, if it is judged that compressor is stopped status, then detection is pressed
Whether the shutdown electric current of contracting machine is more than the 3rd preset value；Then, if detecting that the shutdown electric current of compressor is preset more than the 3rd
Value, it is determined that runtime exception；If detecting that the shutdown electric current of compressor is not more than the 3rd preset value, it is determined that operation system
System is normal.Wherein it is possible to whether use the firing current of the second current sensor detection compressor less than the second preset value.
Mode three, by simultaneously detect firing current of the compressor in opening and the shutdown electric current in stopped status come
Whether detection runtime is abnormal.Wherein, whether detection compressor is different to detect runtime in the firing current of opening
Often similar with mode one, detect that whether abnormal with two class of mode compressor to detect runtime in the shutdown electric current of stopped status
Seemingly, will not be described here.
In the above embodiment of the present invention, in the runtime whether before exception of detection air-conditioner, the control method
Can also include：Whether detection runtime is operated in refrigeration mode, wherein, if detecting runtime is operated in refrigeration mould
Formula, then whether the runtime of detection air-conditioner is abnormal；If detecting runtime is not operate at refrigeration mode, first control
Runtime enters refrigeration mode, then detects whether the runtime of air-conditioner is abnormal.
In the above embodiment of the present invention, after runtime exception is determined, the control method can also include：
First, control air-conditioner is entered and receives fluorine pattern.Wherein, when air-conditioner is operated in receipts fluorine pattern, can be by air-conditioning
Refrigerant collecting beyond the off-premises station of device is in off-premises station, it is preferable that when the compressor in off-premises station is normal, can be by room
Refrigerant collecting in outer machine is in compressor.
Preferably, while air-conditioner entrance receipts fluorine pattern is controlled, the aerofluxuss of the interior at air-conditioner place can be controlled
Fan is opened.As such, it is possible to will leak into interior combustible refrigerant exclude, and then air-conditioner repair well after and again
During secondary operation, the safety of air-conditioner can be improved.
Then, judge whether air-conditioner has completed to receive fluorine.Specifically, whether air-conditioner can be judged by two ways
Complete to receive fluorine：Mode one, it can be determined that whether the run time for receiving fluorine pattern reaches default operation time, if it is determined that
The run time for going out to receive fluorine pattern has reached default operation time, then judge that air-conditioner has completed to receive fluorine；Mode two, such as
Fruit receives fluorine using off-premises station, then can detect cold-producing medium in the circulated miscellaneous part in addition to off-premises station for flowing through of cold-producing medium
Pressure, for example, it is possible to the pressure of the cold-producing medium in signal piping, wherein, when detection cold-producing medium is circulated flow through except off-premises station
When the pressure of cold-producing medium is less than preset pressure value in miscellaneous part in addition, then judge that air-conditioner has completed to receive fluorine, otherwise
Air-conditioner is not completed receives fluorine.And if using compressor receive fluorine, then can detect cold-producing medium circulated flow through except compressor with
The pressure of cold-producing medium in outer miscellaneous part, the concrete detection process of pressure is with the detection using pressure during off-premises station receipts fluorine
Journey, will not be described here.
Wherein, if it is judged that air-conditioner has completed to receive fluorine, then control air-conditioner is shut down.And do not complete in air-conditioner and receive
During fluorine, air-conditioner can be controlled and continue to receive fluorine.If it should be noted that controlled while air-conditioner enters receipts fluorine pattern
Through control air-conditioner be located interior exhaust fan open, then control air-conditioner shut down after, can control the exhaust fan after
Reforwarding row can would leak into the cleaner of the combustible refrigerant exclusion of interior for a period of time, so, so as to air-conditioner again
Safer during operation.
It should be noted that can be in such as one group of computer executable instructions the step of the flow process of accompanying drawing is illustrated
Execute in computer system, and, although show logical order in flow charts, but in some cases, can be with not
The order being same as herein executes shown or described step.
Obviously, those skilled in the art should be understood that each module or each step of the above-mentioned present invention can be with general
Computing device realizing, they can be concentrated on single computing device, or are distributed in multiple computing devices and are constituted
Network on, alternatively, they can be realized with the executable program code of computing device, it is thus possible to they are stored
Executed by computing device in the storage device, or they be fabricated to each integrated circuit modules respectively, or by they
In multiple modules or step be fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific
Hardware and software is combined.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of control method of air-conditioner, it is characterised in that include：
Whether the runtime of detection air-conditioner is abnormal, and wherein, the air-conditioner is freezed using combustible refrigerant；
If detecting the runtime exception of the air-conditioner, control the air-conditioner and shut down；And
If the runtime for detecting the air-conditioner is normal, controls the air-conditioner and normally run,
Wherein, the runtime includes condensator outlet pipe, evaporator inlet pipe and air outlet, detects the operation system of air-conditioner
Whether system is abnormal to include：
Judge the condensator outlet pipe temperature, the temperature of the evaporator inlet pipe and the air outlet temperature in arbitrarily
Whether one changing value in preset time period is less than the first preset value；
If it is judged that the temperature of the temperature, the temperature of the evaporator inlet pipe and the air outlet of the condensator outlet pipe
In any one changing value in the preset time period be less than first preset value, it is determined that the runtime is different
Often；And
If it is judged that the temperature of the temperature, the temperature of the evaporator inlet pipe and the air outlet of the condensator outlet pipe
Changing value in the preset time period is not less than first preset value, it is determined that the runtime is normal.
2. the control method of air-conditioner according to claim 1, it is characterised in that the runtime includes compressor,
Whether the runtime of detection air-conditioner includes extremely：
Judge whether the compressor is opening；
If it is judged that the compressor is opening, then detect whether the firing current of the compressor is preset less than second
Value；
If detecting that the firing current of the compressor is less than the second preset value, it is determined that the runtime exception；And
If detecting that the firing current of the compressor is not less than the second preset value, it is determined that the runtime is normal,
And/or
Judge whether the compressor is stopped status；
If it is judged that the compressor is stopped status, then detect whether the shutdown electric current of the compressor is preset more than the 3rd
Value；
If detecting that the shutdown electric current of the compressor is more than the 3rd preset value, it is determined that the runtime exception；And
If detecting that the shutdown electric current of the compressor is not more than the 3rd preset value, it is determined that the runtime is normal.
3. the control method of air-conditioner according to claim 1 and 2, it is characterised in that in the fortune for detecting the air-conditioner
Whether before exception, the control method also includes row system：
Detect whether the runtime is operated in refrigeration mode,
Wherein, if detecting the runtime is operated in refrigeration mode, the runtime of the air-conditioner is detected whether
Abnormal；If detecting the runtime is not operate at refrigeration mode, first controls the runtime and enter the refrigeration
Pattern, then detect whether the runtime of the air-conditioner is abnormal.
4. the control method of air-conditioner according to claim 3, it is characterised in that determining the runtime exception
Afterwards, the control method also includes：
Control the air-conditioner and enter receipts fluorine pattern；And
Judge whether the air-conditioner has completed to receive fluorine,
Wherein, if it is judged that the air-conditioner has completed to receive fluorine, then control the air-conditioner and shut down.
5. a kind of control device of air-conditioner, it is characterised in that include：
Whether the first detector unit, the runtime for detecting air-conditioner are abnormal, and wherein, the air-conditioner is using combustibility system
Cryogen is freezed；
First control unit, for when the runtime for detecting the air-conditioner is abnormal, controlling the air-conditioner and shutting down；With
And
Second control unit, normally transports for when the runtime for detecting the air-conditioner is normal, controlling the air-conditioner
OK,
Wherein, the runtime includes condensator outlet pipe, evaporator inlet pipe and air outlet, the first detector unit bag
Include：
First judge module, for judging the temperature of the condensator outlet pipe, the temperature of the evaporator inlet pipe and described
In the temperature of air outlet, whether any one changing value in preset time period is less than the first preset value；
First determining module, for judge the temperature of the condensator outlet pipe, the temperature of the evaporator inlet pipe and
When in the temperature of the air outlet, any one changing value in the preset time period is less than first preset value, determine
The runtime exception；And
Second determining module, for judge the temperature of the condensator outlet pipe, the temperature of the evaporator inlet pipe and
When changing value of the temperature of the air outlet in the preset time period is not less than first preset value, the fortune is determined
Row system is normal.
6. the control device of air-conditioner according to claim 5, it is characterised in that the runtime includes compressor,
First detector unit includes：
Second judge module, for judging whether the compressor is opening；
First detection module, for when judging that the compressor is opening, detecting the firing current of the compressor
Whether the second preset value is less than；
3rd determining module, during for being less than the second preset value in the firing current for detecting the compressor, determines the fortune
Row system exception；And
4th determining module, during for being not less than the second preset value in the firing current for detecting the compressor, determines described
Runtime is normal,
And/or
3rd judge module, for judging whether the compressor is stopped status；
Second detection module, for when judging that the compressor is stopped status, detecting the shutdown electric current of the compressor
Whether the 3rd preset value is more than；
5th determining module, during for being more than three preset values in the shutdown electric current for detecting the compressor, determines the fortune
Row system exception；And
6th determining module, during for being not more than three preset values in the shutdown electric current for detecting the compressor, determines described
Runtime is normal.
7. the control device of the air-conditioner according to claim 5 or 6, it is characterised in that also include：
Second detector unit, for detecting that the runtime of the air-conditioner whether before exception, detects the runtime
Whether refrigeration mode is operated in,
Wherein, first detector unit is additionally operable to when detecting the runtime and being operated in refrigeration mode, and detection is described
Whether the runtime of air-conditioner is abnormal；3rd control unit, for detect the runtime be not operate at freeze mould
During formula, first control the runtime and enter the refrigeration mode, then be used for detecting the air-conditioning by first detector unit
Whether the runtime of device is abnormal.
8. the control device of air-conditioner according to claim 7, it is characterised in that also include：
4th control unit, enters receipts fluorine pattern for after the runtime exception is determined, controlling the air-conditioner；With
And
Judging unit, for judging whether the air-conditioner has completed to receive fluorine,
Wherein, first control unit is additionally operable to, when judging that the air-conditioner has completed to receive fluorine, control the air-conditioning
Device is shut down.
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| JP6540106B2 (en) * | 2015-03-09 | 2019-07-10 | 株式会社富士通ゼネラル | Air conditioner |
| CN106482301B (en) * | 2016-11-02 | 2019-09-06 | 广东美的暖通设备有限公司 | A kind of detection method and device of air-conditioning system refrigerant failure |
| DE102017214941A1 (en) | 2017-08-25 | 2019-02-28 | Dometic Sweden Ab | Recreational vehicle, cooling device, control system and method of controlling the cooling device |
| CN107621052A (en) * | 2017-09-06 | 2018-01-23 | 广东美的制冷设备有限公司 | Air-conditioner outdoor unit pipe temperature sensor condition detection method, device and air-conditioning |
| CN107748544A (en) * | 2017-09-25 | 2018-03-02 | 广东小天才科技有限公司 | Control method and system for intelligent household equipment |
| CN107575997B (en) * | 2017-10-26 | 2023-06-09 | 珠海格力电器股份有限公司 | Air conditioning system and method and device for monitoring pipeline breakage in operation of air conditioning system |
| WO2019082168A1 (en) | 2017-10-27 | 2019-05-02 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| CN109357370A (en) * | 2018-10-10 | 2019-02-19 | 洛阳英飞网络科技有限公司 | Air conditioning control method, apparatus and system |
| CN110346162B (en) * | 2019-07-16 | 2021-07-09 | 湖北省泰路科技有限公司 | Automobile air conditioner diagnosis method, system and equipment |
| CN110513826B (en) * | 2019-09-10 | 2021-09-21 | 宁波奥克斯电气股份有限公司 | Air conditioner and control method thereof |
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