CN107560067A - The control method of air conditioner, the control system of air conditioner and air conditioner - Google Patents
The control method of air conditioner, the control system of air conditioner and air conditioner Download PDFInfo
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- CN107560067A CN107560067A CN201710712265.8A CN201710712265A CN107560067A CN 107560067 A CN107560067 A CN 107560067A CN 201710712265 A CN201710712265 A CN 201710712265A CN 107560067 A CN107560067 A CN 107560067A
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- temperature
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Abstract
The invention provides a kind of control method of air conditioner, the control system of air conditioner and air conditioner, wherein, the control method of air conditioner includes：Detect the working condition of air conditioner and the temperature of heat exchanger；When air conditioner is under defrost state or oil return state and when the temperature of heat exchanger is more than the first preset duration less than the duration of the first preset temperature, new blower fan is controlled to continue to run with.The control method of air conditioner provided by the invention, control air conditioner is such as defrosted when being run at low ambient temperatures with heating state or oil return special operation condition, new blower fan is controlled to continue to run with, so as to avoid causing the frequent start-stop of new blower fan because environment temperature or heat exchange temperature exceed the heating operation scope of new blower fan, ensure new blower fan reliability, lift the CSAT of product and the usage experience of user.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to a kind of control of the control method of air conditioner, air conditioner
System and air conditioner.
Background technology
With the fast development and the raising of living standards of the people of China's economy, multi-connected air conditioner is in people's daily life
Application it is more and more extensive.Based on health, environmental protection requirement, new blower fan with it can introduce the higher fresh air of quality and by market
Favor.However, due to the unique outdoor return characteristic of multi-joint new blower fan system, its in structure, function, characteristic with commonly
Indoor set has larger difference, and such as new blower fan can moderately run low-temperature heating.But during new blower fan low-temperature heating, once meet
To special circumstances such as oil return, defrostings, new blower fan return air temperature by low temperature refrigerant radiation effect, easily beyond fresh air mechanism heat
Range of operation, and then cause new blower fan report low temperature disorderly closedown.The frequent start-stop of new blower fan neither can guarantee that fresh air machine reliability,
Also Consumer's Experience is leveraged.
The content of the invention
At least one in order to solve the above-mentioned technical problem, the embodiment of the first aspect of the present invention proposes a kind of air conditioner
Control method.
A kind of the second aspect of the present invention embodiment, it is also proposed that control system of air conditioner.
A kind of the third aspect of the present invention embodiment, it is also proposed that air conditioner.
In view of this, embodiment according to the first aspect of the invention, the present invention propose a kind of controlling party of air conditioner
Method, air conditioner include new blower fan, and new blower fan includes heat exchanger, and the control method of air conditioner includes：Detect the work shape of air conditioner
The temperature of state and heat exchanger；When air conditioner is under defrosting state or oil return state and the temperature of heat exchanger is less than the first preset temperature
Duration when being more than the first preset duration, control new blower fan to continue to run with.
The control method of air conditioner provided by the invention, air conditioner is controlled at low ambient temperatures to heat when state is run such as
Defrosted or the special operation condition such as oil return, control new blower fan to continue to run with, so as to avoid because environment temperature or heat exchange temperature surpass
Go out the heating operation scope of new blower fan and cause the frequent start-stop of new blower fan, ensure new blower fan reliability, lift the client of product
Satisfaction and the usage experience of user.
In addition, the control method of the air conditioner in above-described embodiment provided by the invention can also have following supplementary technology
Feature：
In the above-mentioned technical solutions, it is preferable that also include：When controlling the new blower fan to continue to run with, the return air of new blower fan is detected
Temperature；If return air temperature is less than the heating operation temperature upper limit value of new blower fan, return air temperature is entered as heating operation temperature
Lower limit and temperature corrected value and；Control air conditioner continues to run with according to the return air temperature after assignment.
In the technical scheme, the return air temperature of new blower fan is detected when controlling new blower fan to continue to run with, if return air temperature
Heating operation temperature upper limit value less than new blower fan then carries out assignment to return air temperature, afterwards further according to the output control of the assignment
Air conditioner is run, by above-mentioned assignment procedure fresh air machine first can continuous service without frequent start-stop, secondly because time
Result after air temperature assignment is in the normal heating operation temperature range of new blower fan, and so new blower fan can is according to the vacation
If return air temperature continue control associated components continue normal operation, without causing new blower fan frequent start-stop or air conditioner can not
Normal work.Wherein, heating operation temperature upper limit value is generally preset value when new blower fan dispatches from the factory, and temperature corrected value can be voluntarily
Set, temperature corrected value can be such as set to 1 DEG C, so ensure that the return air temperature after assignment is in normal heating operation
In temperature range.
In any of the above-described technical scheme, it is preferable that also include：New blower fan is accumulative after controlling new blower fan to continue to run with
When operation duration is more than the maximum defrosting operating time of air conditioner and maximum oil return operating time, the return air temperature of new blower fan is detected
Degree；Control air conditioner continues to run with according to the actually detected value of return air temperature.
In the technical scheme, the accumulative operation duration of new blower fan is more than air conditioner after controlling new blower fan to continue to run with
When maximum defrosting operating time and maximum oil return operating time, defrosting or oil return now are had been completed equivalent to air conditioner, it
Detect the return air temperature of new blower fan again afterwards, now can normally controls actually detected value of the air conditioner according to return air temperature
Continue to run with so that air conditioner returns to normal working condition.
In any of the above-described technical scheme, it is preferable that the step of detecting the working condition of air conditioner, specifically include：Work as sky
The return air temperature of new blower fan is detected when adjusting device to be in heating state；When return air temperature is big less than the duration of the second preset temperature
When the second preset duration, then judge that air conditioner enters defrosting state or oil return state.
In the technical scheme, as air conditioner under heating state when return air temperature less than the second preset temperature it is lasting when
Length then may determine that air conditioner enters defrosting state or oil return state when being more than the second preset duration, pass through above-mentioned determination methods
It can tentatively judge whether air conditioner enters defrosting state or oil return state, to carry out subsequently for air conditioner and its new
The control of blower fan.
In any of the above-described technical scheme, it is preferable that also include：Every the work shape of the 3rd preset duration detection air conditioner
The temperature of state and heat exchanger.
In the technical scheme, the working condition of air conditioner and the temperature of heat exchanger are periodically detected, in order to control
Air conditioner and new blower fan, ensure the normal operation of air conditioner, while avoid because environment temperature or heat exchange temperature exceed new blower fan
Heating operation scope and cause the frequent start-stop of new blower fan, ensure new blower fan reliability, lifted product CSAT and
The usage experience of user.
The embodiment of second aspect of the present invention additionally provides a kind of control system of air conditioner, and air conditioner includes new blower fan,
New blower fan includes heat exchanger, and the control system of air conditioner includes：Detection unit, for detecting working condition and the heat exchange of air conditioner
The temperature of device；Control unit, for when air conditioner under defrosting state or oil return state and heat exchanger temperature less than first pre-
If the duration of temperature is more than the first preset duration, new blower fan is controlled to continue to run with.
The control system of air conditioner provided by the invention, air conditioner is controlled at low ambient temperatures to heat when state is run such as
Defrosted or the special operation condition such as oil return, control new blower fan to continue to run with, so as to avoid because environment temperature or heat exchange temperature surpass
Go out the heating operation scope of new blower fan and cause the frequent start-stop of new blower fan, ensure new blower fan reliability, lift the client of product
Satisfaction and the usage experience of user.
In addition, the control system of the air conditioner in above-described embodiment provided by the invention can also have following supplementary technology
Feature：
In the above-mentioned technical solutions, it is preferable that also include：Assignment unit；Detection unit is additionally operable to control in control unit
When new blower fan continues to run with, the return air temperature of new blower fan is detected；If assignment unit is used for the heating that return air temperature is less than new blower fan
Running temperature lower limit, then by return air temperature be entered as heating operation temperature upper limit value and temperature corrected value and；Control unit
It is additionally operable to control air conditioner to be continued to run with according to the return air temperature after assignment.
In the technical scheme, the return air temperature of new blower fan is detected when controlling new blower fan to continue to run with, if return air temperature
Heating operation temperature upper limit value less than new blower fan then carries out assignment to return air temperature, afterwards further according to the output control of the assignment
Air conditioner is run, by above-mentioned assignment procedure fresh air machine first can continuous service without frequent start-stop, secondly because time
Result after air temperature assignment is in the normal heating operation temperature range of new blower fan, and so new blower fan can is according to the vacation
If return air temperature continue control associated components continue normal operation, without causing new blower fan frequent start-stop or air conditioner can not
Normal work.Wherein, heating operation temperature upper limit value is generally preset value when new blower fan dispatches from the factory, and temperature corrected value can be voluntarily
Set, temperature corrected value can be such as set to 1 DEG C, so ensure that the return air temperature after assignment is in normal heating operation
In temperature range.
In any of the above-described technical scheme, it is preferable that detection unit is additionally operable to when control unit controls new blower fan to continue to transport
When the accumulative operation duration of new blower fan is more than the maximum defrosting operating time of air conditioner and maximum oil return operating time after row, detection
The return air temperature of new blower fan；Control unit is additionally operable to control air conditioner to be continued to run with according to the actually detected value of return air temperature.
In the technical scheme, the accumulative operation duration of new blower fan is more than air conditioner after controlling new blower fan to continue to run with
When maximum defrosting operating time and maximum oil return operating time, defrosting or oil return now are had been completed equivalent to air conditioner, it
Detect the return air temperature of new blower fan again afterwards, now can normally controls actually detected value of the air conditioner according to return air temperature
Continue to run with so that air conditioner returns to normal working condition.
In any of the above-described technical scheme, it is preferable that also include：Judging unit；Detection unit is additionally operable at air conditioner
The return air temperature of new blower fan is detected when the state of heating；Judging unit is used to less than the second preset temperature continue when return air temperature
When duration is more than the second preset duration, then judge that air conditioner enters defrosting state or oil return state.
In the technical scheme, as air conditioner under heating state when return air temperature less than the second preset temperature it is lasting when
Length then may determine that air conditioner enters defrosting state or oil return state when being more than the second preset duration, pass through above-mentioned determination methods
It can tentatively judge whether air conditioner enters defrosting state or oil return state, to carry out subsequently for air conditioner and its new
The control of blower fan.
In any of the above-described technical scheme, it is preferable that detection unit is additionally operable to detect air conditioner every the 3rd preset duration
Working condition and heat exchanger temperature.
In the technical scheme, the working condition of air conditioner and the temperature of heat exchanger are periodically detected, in order to control
Air conditioner and new blower fan, ensure the normal operation of air conditioner, while avoid because environment temperature or heat exchange temperature exceed new blower fan
Heating operation scope and cause the frequent start-stop of new blower fan, ensure new blower fan reliability, lifted product CSAT and
The usage experience of user.
The embodiment of third aspect present invention additionally provides a kind of air conditioner, including：New blower fan, new blower fan include heat exchange
Device；And the control system of the air conditioner of second aspect of the present invention embodiment.
Air conditioner provided by the invention, by using the control system of the air conditioner of second aspect of the present invention embodiment, keep away
Exempt to cause the frequent start-stop of new blower fan because environment temperature or heat exchange temperature exceed the heating operation scope of new blower fan, ensure new
Blower fan reliability, lift the CSAT of product and the usage experience of user.
The additional aspect and advantage of the present invention will become obvious in following description section, or the practice by the present invention
Recognize.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention；
Fig. 2 is the schematic flow sheet of the control method of the air conditioner of an alternative embodiment of the invention；
Fig. 3 is the schematic flow sheet of the control method of the air conditioner of yet another embodiment of the present invention；
Fig. 4 is the schematic block diagram of the control system of the air conditioner of one embodiment of the present of invention.
Embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be different from other modes described here using other to implement, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The control method and air-conditioning of air conditioner described according to some embodiments of the invention are described referring to Fig. 1 to Fig. 4
The control system of device.
As shown in figure 1, the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention, the control method
Available for air conditioner is controlled, air conditioner includes new blower fan, and new blower fan includes heat exchanger, and the control method of the air conditioner is including following
Step：
Step S102, detect the working condition of air conditioner and the temperature of heat exchanger；
Step S104, when air conditioner is under defrosting state or oil return state and the temperature of heat exchanger is less than the first preset temperature
Duration when being more than the first preset duration, control new blower fan to continue to run with.
In this embodiment, control air conditioner is such as defrosted when being run at low ambient temperatures with heating state or oil return
Special operation condition, new blower fan is controlled to continue to run with, so as to avoid because environment temperature or heat exchange temperature are transported beyond the heating of new blower fan
Line range and the frequent start-stop for causing new blower fan, ensure new blower fan reliability, lift the CSAT of product and making for user
With experience.
As shown in Fig. 2 the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention, the control method
Available for air conditioner is controlled, air conditioner includes new blower fan, and new blower fan includes heat exchanger, and the control method of the air conditioner is including following
Step：
Step S202, detect the working condition of air conditioner and the temperature of heat exchanger；
Step S204, when air conditioner is under defrosting state or oil return state and the temperature of heat exchanger is less than the first preset temperature
Duration when being more than the first preset duration, control new blower fan to continue to run with；
Step S206, detect the return air temperature of new blower fan；
Step S208, judges whether return air temperature is less than the heating operation temperature upper limit value of new blower fan, if the result judged
To be then to enter step S210, otherwise then return to step S206；
Step S210, by return air temperature be entered as heating operation temperature upper limit value and temperature corrected value and；
Step S212, control air conditioner continue to run with according to the return air temperature after assignment.
In this embodiment, the return air temperature of new blower fan is detected when controlling new blower fan to continue to run with, if return air temperature is low
Assignment then is carried out to return air temperature in the heating operation temperature upper limit value of new blower fan, it is empty further according to the output control of the assignment afterwards
Adjust device operation, by above-mentioned assignment procedure fresh air machine first can continuous service without frequent start-stop, secondly because of return air
Result after temperature assignment is in the normal heating operation temperature range of new blower fan, and so new blower fan can is according to the hypothesis
Return air temperature continue control associated components continue normal operation, without causing new blower fan frequent start-stop or air conditioner can not be just
Often work.Wherein, heating operation temperature upper limit value is generally preset value when new blower fan dispatches from the factory, and temperature corrected value can voluntarily be set
Put, temperature corrected value can be such as set to 1 DEG C, so ensure that the return air temperature after assignment is in normal heating operation temperature
In the range of degree.
As shown in figure 3, the schematic flow sheet of the control method of the air conditioner of one embodiment of the present of invention, the control method
Available for air conditioner is controlled, air conditioner includes new blower fan, and new blower fan includes heat exchanger, and the control method of the air conditioner is including following
Step：
Step S302, detect the working condition of air conditioner and the temperature of heat exchanger；
Step S304, when air conditioner is under defrosting state or oil return state and the temperature of heat exchanger is less than the first preset temperature
Duration when being more than the first preset duration, control new blower fan to continue to run with；
Step S306, detect the return air temperature of new blower fan；
Step S308, judges whether return air temperature is less than the heating operation temperature upper limit value of new blower fan, if the result judged
To be then to enter step S310, otherwise then return to step S306；
Step S310, by return air temperature be entered as heating operation temperature upper limit value and temperature corrected value and；
Step S312, control air conditioner continue to run with according to the return air temperature after assignment；
Step S314, judges whether the accumulative operation duration of new blower fan is more than the maximum defrosting operating time and most of air conditioner
Big oil return operating time, enters step S316 if the result judged is is, otherwise then return to step S302；
Step S316, detect the return air temperature of new blower fan；
Step S318, control air conditioner continue to run with according to the actually detected value of return air temperature.
In this embodiment, the accumulative operation duration of new blower fan is more than air conditioner most after controlling new blower fan to continue to run with
When big defrosting operating time and maximum oil return operating time, defrosting or oil return now are had been completed equivalent to air conditioner, afterwards
Detect the return air temperature of new blower fan again, now can normally control air conditioner according to the actually detected value of return air temperature after
Reforwarding row so that air conditioner returns to normal working condition.
In one embodiment of the invention, it is preferable that the step of detecting the working condition of air conditioner, specifically include：When
Air conditioner detects the return air temperature of new blower fan when being in heating state；When return air temperature is less than the duration of the second preset temperature
During more than the second preset duration, then judge that air conditioner enters defrosting state or oil return state.
In this embodiment, as air conditioner under heating state when return air temperature be less than the second preset temperature duration
It then may determine that air conditioner enters defrosting state or oil return state during more than the second preset duration, can by above-mentioned determination methods
Tentatively to judge whether air conditioner enters defrosting state or oil return state, to carry out subsequently for air conditioner and its fresh air
The control of machine.
In one embodiment of the invention, it is preferable that also include：Every the work of the 3rd preset duration detection air conditioner
The temperature of state and heat exchanger.
In this embodiment, the working condition of air conditioner and the temperature of heat exchanger are periodically detected, in order to control sky
Device and new blower fan are adjusted, ensures the normal operation of air conditioner, while is avoided because environment temperature or heat exchange temperature are beyond new blower fan
Heating operation scope and cause the frequent start-stop of new blower fan, ensure new blower fan reliability, lift the CSAT and use of product
The usage experience at family.
Present invention also offers a kind of control system 4 of air conditioner, as shown in figure 4, can be used for controlling air conditioner, air conditioner
Including new blower fan, new blower fan includes heat exchanger, and the control system 4 of air conditioner includes：Detection unit 402, for detecting air conditioner
Working condition and heat exchanger temperature；Control unit 404, under defrosting state or oil return state and being exchanged heat when air conditioner
When the temperature of device is more than the first preset duration less than the duration of the first preset temperature, new blower fan is controlled to continue to run with.
The control system 4 of air conditioner provided by the invention, when control air conditioner is run with heating state at low ambient temperatures
Such as defrosted or oil return special operation condition, control new blower fan to continue to run with, so as to avoid because of environment temperature or heat exchange temperature
Cause the frequent start-stop of new blower fan beyond the heating operation scope of new blower fan, ensure new blower fan reliability, lift the visitor of product
Family satisfaction and the usage experience of user.
In one embodiment of the invention, as shown in Figure 4, it is preferable that also include：Assignment unit 406；Detection unit
402 are additionally operable to, when control unit 404 controls new blower fan to continue to run with, detect the return air temperature of new blower fan；Assignment unit 406 is used
If being less than the heating operation temperature upper limit value of new blower fan in return air temperature, return air temperature is entered as heating operation lowest temperature
Value with temperature corrected value and；Control unit 404 is additionally operable to control air conditioner to be continued to run with according to the return air temperature after assignment.
In this embodiment, the return air temperature of new blower fan is detected when controlling new blower fan to continue to run with, if return air temperature is low
Assignment then is carried out to return air temperature in the heating operation temperature upper limit value of new blower fan, it is empty further according to the output control of the assignment afterwards
Adjust device operation, by above-mentioned assignment procedure fresh air machine first can continuous service without frequent start-stop, secondly because of return air
Result after temperature assignment is in the normal heating operation temperature range of new blower fan, and so new blower fan can is according to the hypothesis
Return air temperature continue control associated components continue normal operation, without causing new blower fan frequent start-stop or air conditioner can not be just
Often work.Wherein, heating operation temperature upper limit value is generally preset value when new blower fan dispatches from the factory, and temperature corrected value can voluntarily be set
Put, temperature corrected value can be such as set to 1 DEG C, so ensure that the return air temperature after assignment is in normal heating operation temperature
In the range of degree.
In one embodiment of the invention, it is preferable that as shown in figure 4, also including：Detection unit 402 is additionally operable to when control
Unit 404 processed controls new blower fan to continue to run with afterwards the maximum defrosting operating time that the newly accumulative operation duration of blower fan is more than air conditioner
During with maximum oil return operating time, the return air temperature of new blower fan is detected；Control unit 404 is additionally operable to control air conditioner according to return air
The actually detected value of temperature continues to run with.
In this embodiment, the accumulative operation duration of new blower fan is more than air conditioner most after controlling new blower fan to continue to run with
When big defrosting operating time and maximum oil return operating time, defrosting or oil return now are had been completed equivalent to air conditioner, afterwards
Detect the return air temperature of new blower fan again, now can normally control air conditioner according to the actually detected value of return air temperature after
Reforwarding row so that air conditioner returns to normal working condition.
In one embodiment of the invention, it is preferable that as shown in figure 4, also including：Judging unit 408；Detection unit
402 are additionally operable to detect the return air temperature of new blower fan when air conditioner is in heating state；Judging unit 408 is used to work as return air temperature
When duration less than the second preset temperature is more than the second preset duration, then judge that air conditioner enters defrosting state or oil return shape
State.
In this embodiment, as air conditioner under heating state when return air temperature be less than the second preset temperature duration
It then may determine that air conditioner enters defrosting state or oil return state during more than the second preset duration, can by above-mentioned determination methods
Tentatively to judge whether air conditioner enters defrosting state or oil return state, to carry out subsequently for air conditioner and its fresh air
The control of machine.
In one embodiment of the invention, it is preferable that as shown in figure 4, detection unit 402 is additionally operable to preset every the 3rd
The working condition of duration detection air conditioner and the temperature of heat exchanger.
In this embodiment, the working condition of air conditioner and the temperature of heat exchanger are periodically detected, in order to control sky
Device and new blower fan are adjusted, ensures the normal operation of air conditioner, while is avoided because environment temperature or heat exchange temperature are beyond new blower fan
Heating operation scope and cause the frequent start-stop of new blower fan, ensure new blower fan reliability, lift the CSAT and use of product
The usage experience at family.
Present invention also offers a kind of air conditioner, including：New blower fan, new blower fan include heat exchanger；And second party of the present invention
The control system 4 of the air conditioner of face embodiment.
Air conditioner provided by the invention, by using the control system 4 of the air conditioner of second aspect of the present invention embodiment, keep away
Exempt to cause the frequent start-stop of new blower fan because environment temperature or heat exchange temperature exceed the heating operation scope of new blower fan, ensure new
Blower fan reliability, lift the CSAT of product and the usage experience of user.
In the present invention, term " multiple " then refers to two or more, is limited unless otherwise clear and definite.Term " peace
The term such as dress ", " connected ", " connection ", " fixation " all should be interpreted broadly, for example, " connection " can be fixedly connected, can also
It is to be detachably connected, or is integrally connected；" connected " can be joined directly together, and can also be indirectly connected by intermediary.It is right
For one of ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that specific features, structure, material or the feature that the embodiment or example describe are contained in the present invention
Apply in example or example.In this manual, identical embodiment or reality are not necessarily referring to the schematic representation of above-mentioned term
Example.Moreover, description specific features, structure, material or feature can in any one or more embodiments or example with
Suitable mode combines.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (11)
1. a kind of control method of air conditioner, the air conditioner includes new blower fan, and the new blower fan includes heat exchanger, and its feature exists
In the control method of the air conditioner includes：
Detect the working condition of the air conditioner and the temperature of the heat exchanger；
When the air conditioner is under defrosting state or oil return state and the temperature of the heat exchanger being held less than first preset temperature
When continuous duration is more than the first preset duration, the new blower fan is controlled to continue to run with.
2. the control method of air conditioner according to claim 1, it is characterised in that also include：
When controlling the new blower fan to continue to run with, the return air temperature of the new blower fan is detected；
If the return air temperature is less than the heating operation temperature upper limit value of the new blower fan, the return air temperature is entered as institute
State heating operation temperature upper limit value and temperature corrected value and；
The air conditioner is controlled to be continued to run with according to the return air temperature after assignment.
3. the control method of air conditioner according to claim 2, it is characterised in that also include：
The accumulative operation duration of the new blower fan is removed more than the maximum of the air conditioner after controlling the new blower fan to continue to run with
When white operating time and maximum oil return operating time, the return air temperature of the new blower fan is detected；
The air conditioner is controlled to be continued to run with according to the actually detected value of the return air temperature.
4. the control method of air conditioner according to any one of claim 1 to 3, it is characterised in that detect the air-conditioning
The step of working condition of device, specifically include：
The return air temperature of the new blower fan is detected when the air conditioner is in heating state；
When the return air temperature is more than the second preset duration less than the duration of the second preset temperature, then the air-conditioning is judged
Device enters defrosting state or oil return state.
5. the control method of air conditioner according to any one of claim 1 to 3, it is characterised in that also include：
The working condition of the air conditioner and the temperature of the heat exchanger are detected every the 3rd preset duration.
6. a kind of control system of air conditioner, the air conditioner includes new blower fan, and the new blower fan includes heat exchanger, and its feature exists
In the control system of the air conditioner includes：
Detection unit, for detecting the working condition of the air conditioner and the temperature of the heat exchanger；
Control unit, for when the air conditioner defrosting state or oil return state under and the heat exchanger temperature be less than first
When the duration of preset temperature is more than the first preset duration, the new blower fan is controlled to continue to run with.
7. the control system of air conditioner according to claim 6, it is characterised in that also include：
Assignment unit；
The detection unit is additionally operable to, when described control unit controls the new blower fan to continue to run with, detect the new blower fan
Return air temperature；
If the assignment unit is used for the heating operation temperature upper limit value that the return air temperature is less than the new blower fan, by described in
Return air temperature be entered as the heating operation temperature upper limit value and temperature corrected value and；
Described control unit is additionally operable to control the air conditioner to be continued to run with according to the return air temperature after assignment.
8. the control system of air conditioner according to claim 7, it is characterised in that
The detection unit is additionally operable to the accumulative of after described control unit controls the new blower fan the to continue to run with new blower fan
When operation duration is more than the maximum defrosting operating time of the air conditioner and maximum oil return operating time, the new blower fan is detected
Return air temperature；
Described control unit is additionally operable to control the air conditioner to be continued to run with according to the actually detected value of the return air temperature.
9. the control system of the air conditioner according to any one of claim 6 to 8, it is characterised in that also include：
Judging unit；
The detection unit is additionally operable to detect the return air temperature of the new blower fan when the air conditioner is in heating state；
The judging unit is used for when the return air temperature is more than the second preset duration less than the duration of the second preset temperature
When, then judge that the air conditioner enters defrosting state or oil return state.
10. the control system of the air conditioner according to any one of claim 6 to 8, it is characterised in that
The detection unit is additionally operable to detect the working condition of the air conditioner and the heat exchanger every the 3rd preset duration
Temperature.
A kind of 11. air conditioner, it is characterised in that including：
New blower fan, the new blower fan include heat exchanger；And
The control system of air conditioner as any one of claim 6 to 10.
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