CN107631438A - The control method and system of air-conditioning under high humidity heating condition - Google Patents
The control method and system of air-conditioning under high humidity heating condition Download PDFInfo
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- CN107631438A CN107631438A CN201710865813.0A CN201710865813A CN107631438A CN 107631438 A CN107631438 A CN 107631438A CN 201710865813 A CN201710865813 A CN 201710865813A CN 107631438 A CN107631438 A CN 107631438A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 59
- 238000010438 heat treatment Methods 0.000 title claims abstract description 51
- 230000007704 transition Effects 0.000 claims description 27
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- 238000007906 compression Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 10
- 239000003921 oil Substances 0.000 description 45
- 239000010687 lubricating oil Substances 0.000 description 12
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- 230000008569 process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 235000003642 hunger Nutrition 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 230000037351 starvation Effects 0.000 description 3
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- 238000004590 computer program Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
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- 238000005516 engineering process Methods 0.000 description 1
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- 235000008434 ginseng Nutrition 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The present invention relates to air-conditioning technical field, and in particular to the control method and system of air-conditioning under a kind of high humidity heating condition.Present invention seek to address that present in existing air-conditioned start raising frequency control method due to the raising frequency time is long and when causing that quick heating effect is poor, ambient humidity is larger the problem of outdoor unit easy frosting.For this purpose, the control method of the present invention includes：Obtain ambient humidity；When ambient humidity is more than setting humidity, make that outer blower fan starts and raising speed is to first object rotating speed；Make the compressor start of air-conditioning during outer blower fan reaches first object rotating speed；Make the compressor according to multiple setting speeds, stage by stage continuous raising frequency.The raising frequency time of compressor, and then the quick purpose for heating and delaying frosting can be greatly shortened in above-mentioned set-up mode while the normal oil return of guarantee compressor, lift the comfortableness of air-conditioning, improve Consumer's Experience.
Description
Technical field
The present invention relates to air-conditioning technical field, and in particular to the control method of air-conditioning and is under a kind of high humidity heating condition
System.
Background technology
With the increasingly raising of living standard, also more and more higher, this requirement are in for requirement of the people for quality of life
Embody particularly evident on electrical appliance.By taking air-conditioning as an example, in order to meet the needs of user quickly heats, so as to bring in the winter time more
Comfortable usage experience, existing air-conditioning typically all can run the quick raising frequency of compressor to higher frequency in firm start.
In compressor operating, the refrigerant in compressor can be discharged promptly, be circulated in pipe-line system.In cyclic process,
Lubricating oil can together discharge compressor with refrigerant, enter in pipeline, and this parts of lubricating oil only discharged smoothly returns to
In compressor (i.e. oil return), the dynamic equilibrium of lubricating oil in whole system could be maintained, otherwise, compressor can damage because of oil starvation
It is bad.Most air-conditioning uses the set-up mode that oil eliminator is combined with oil return capillary in the market, will discharge the profit of compressor
Lubricating oil is separated by oil eliminator and returned to and then by oil return capillary in compressor.But for convertible frequency air-conditioner,
With the rise of compressor operating frequency, the velocity of discharge/speed of lubricating oil is also increasingly faster, when lubricating oil the velocity of discharge/
When speed exceedes maximum oil return speed/speed of oil return capillary, the phenomenon of oil starvation is just easily produced.Therefore it is normal in order to ensure
Oil return, during compressor is quickly ramped up to high frequency, it will usually force compressor in some or some fixed frequencies (oil return frequency
Rate) on continuous service for a period of time, treat that follow-up frequency of continuing rising is stablized in oil return.
Although above-mentioned set-up mode ensure that normal oil return, but force compressor one section of continuous service in oil return frequency
The set-up mode of time so that air-conditioning the raising frequency overlong time of compressor, slow down compressor in quick heating operations of starting shooting
Reach the speed of maximum operation frequency, also increase the time quickly heated after air-conditioning start, and then influence air-conditioning and quickly make
The effect of heat, bad usage experience is brought for user.That is, existing air-conditioning start raising frequency control method exist due to
Caused by raising frequency time length the problem of quick heating effect difference.In addition, when outdoor environment humidity is larger in the winter time, compressor exists
Quick raising frequency after air-conditioning start also causes outdoor unit faster to reach frosting condition, therefore air-conditioning quickly heats in above-mentioned environment
When also result in the problem of outdoor unit is more easy to frosting.
Correspondingly, this area needs a kind of control method of new air-conditioning to solve the above problems.
The content of the invention
In order to solve above mentioned problem of the prior art, deposited in the start raising frequency control method for being the existing air-conditioning of solution
The easy frosting of outdoor unit when causing that quick heating effect is poor, ambient humidity is larger because the raising frequency time is long the problem of, this hair
The bright control method for providing air-conditioning under a kind of high humidity heating condition, the control method comprise the following steps：
Obtain ambient humidity；
When the ambient humidity is more than setting humidity, start the outer blower fan of the air-conditioning, and according to the acceleration of setting
Raising speed is spent to first object rotating speed；
During the outer blower fan raising speed to the first object rotating speed, make the compressor start of the air-conditioning；
Make the compressor according to multiple raising frequency speed, stage by stage continuous raising frequency.
Under above-mentioned high humidity heating condition in the optimal technical scheme of the control method of air-conditioning, the control method is also wrapped
Include：
After continuous raising frequency stage by stage, judge whether compressor frequency reaches first object frequency；
When the compressor frequency reaches the first object frequency, the compressor is set to stop raising frequency.
Under above-mentioned high humidity heating condition in the optimal technical scheme of the control method of air-conditioning, " in the outer blower fan raising speed
To the compressor start for during the first object rotating speed, making the air-conditioning " the step of further comprise：
When the outer blower fan reaches the first object rotating speed, make the compressor start of the air-conditioning.
Under above-mentioned high humidity heating condition in the optimal technical scheme of the control method of air-conditioning, " make the compressor according to
The step of multiple setting speeds, stage by stage continuous raising frequency ", further comprises：
The compressor is set to carry out raising frequency according to the first raising frequency speed；
Judge whether the compressor frequency reaches transition frequency；
When the compressor frequency reaches the transition frequency, the compressor is set to be risen according to the second raising frequency speed
Frequently；
Wherein, the transition frequency is less than the first object frequency.
Under above-mentioned high humidity heating condition in the optimal technical scheme of the control method of air-conditioning, the first raising frequency speed is big
In the second raising frequency speed, and/or the maximum operation frequency that the first object frequency is the compressor, and/
Or the maximum functional rotating speed that the first object rotating speed is the outer blower fan, and/or the humidity that sets is 60%.
Under above-mentioned high humidity heating condition in the optimal technical scheme of the control method of air-conditioning, the control method is also wrapped
Include：
Obtain ambient parameter；
When the ambient parameter reaches target component, the compressor is set to be downconverted to the second target frequency, and make institute
The rotating speed for stating outer blower fan is reduced to the second rotating speed of target.
Under above-mentioned high humidity heating condition in the optimal technical scheme of the control method of air-conditioning, the ambient parameter is environment
Temperature or the ambient humidity, the target component are accordingly target temperature or target humidity.
Present invention also offers a kind of control system of air-conditioning under high humidity heating condition, the control system includes：
Acquisition module, it is used to obtain ambient humidity；
First control module, it is used to, when the ambient humidity is more than setting humidity, open the outer blower fan of the air-conditioning
It is dynamic, and according to setting acceleration raising speed to first object rotating speed；
Second control module, it is used to, when the outer blower fan raising speed is to the first object rotating speed, make the air-conditioning
Compressor start, and make the compressor according to multiple setting speeds, stage by stage continuous raising frequency, and reaching in compressor frequency
During first object frequency, the compressor is set to stop raising frequency；
Judge module, it is used to judge whether the ambient humidity is more than the setting humidity, whether the outer blower fan rises
Whether speed to the first object rotating speed and the compressor frequency reaches the first object frequency.
Under above-mentioned high humidity heating condition in the optimal technical scheme of the control system of air-conditioning, second control module is pressed
Make the compressor according to multiple setting speeds continuous raising frequency stage by stage according to following manner：
Second control module makes the compressor carry out raising frequency according to the first raising frequency speed；
The judge module judges whether the compressor frequency reaches transition frequency；
When the compressor frequency reaches the transition frequency, second control module makes the compressor according to
Two raising frequency speed carry out raising frequency；
Wherein, the transition frequency is less than the first object frequency；And/or
The first raising frequency speed is more than the second raising frequency speed.
Under above-mentioned high humidity heating condition in the optimal technical scheme of the control system of air-conditioning,
The acquisition module is additionally operable to obtain ambient parameter；
The judge module is additionally operable to judge whether the ambient parameter reaches target component；
First control module is additionally operable to, when the ambient parameter reaches the target component, make the outer blower fan
Rotating speed is reduced to the second rotating speed of target；
Second control module is additionally operable to when the ambient parameter reaches the target component, drops the compressor
Frequently to the second target frequency；
Wherein, the ambient parameter is environment temperature or the ambient humidity, and the target component is accordingly target temperature
Degree or target humidity.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, it is empty under high humidity heating condition
The control method of tune includes：Obtain ambient humidity；When ambient humidity is more than setting humidity, start the outer blower fan of air-conditioning, and
According to the acceleration raising speed of setting to first object rotating speed；In outer blower fan raising speed to first object rotating speed, make the compression of air-conditioning
Machine starts；Make compressor according to multiple setting speeds, stage by stage continuous raising frequency；Judge whether compressor frequency reaches first object
Frequency；When compressor frequency reaches first object frequency, compressor is set to stop raising frequency.By during cancelling compressor raising frequency
Continuous running phases in oil return frequency, then make compressor and continuously risen stage by stage with different raising frequency speed upon actuation
Frequently, the raising frequency time of compressor, and then the purpose quickly heated can be greatly shortened in the present invention, lift the comfortable of air-conditioning
Property, improve Consumer's Experience.And it is more than setting humidity by obtaining ambient humidity before compressor start, and in ambient humidity
The outer blower fans of Shi Xianrang start and reach the method to set up of first object rotating speed, can shift to an earlier date and drive air flow as pressure using high rotating speed
Contracting machine radiates, and makes just to possess good radiating condition during compressor start, while can also delay frosting, then avoids outer blower fan
Compressor radiating effect is bad caused by together starting with compressor or the situation of the easy frosting of outdoor unit occurs, and improves compression
Heating effect after machine startup.
Specifically, when ambient humidity is more than setting humidity, starts outer blower fan, make when outer blower fan reaches maximum (top) speed
Compressor start, the first raising frequency speed is first according to after compressor start and carries out raising frequency, reaches transition frequency in compressor frequency
When, compressor is carried out raising frequency according to the second raising frequency speed, when compressor frequency reaches first object frequency, stop compressor
Only raising frequency.Wherein, transition frequency is less than first object frequency, and the first raising frequency speed is more than the second raising frequency speed.Preferably, first
Target frequency is the maximum operation frequency of compressor.Present inventor is more than by experiment is found repeatedly in ambient humidity
First allow outer blower fan to start when setting humidity, make compressor again when outer blower fan reaches maximum (top) speed with raising frequency speed first quick and back slow
Two or more stages are divided to carry out raising frequency, the present invention can not only ensure that compressor is normal by the phasic Chang of raising frequency speed
Oil return, while compressor raising frequency can also be greatly shortened to the time of maximum operation frequency, meet the needs of user quickly heats.
Brief description of the drawings
With reference to the accompanying drawings come describe the present invention high humidity heating condition under air-conditioning control method and system.In accompanying drawing：
Fig. 1 is the schematic flow sheet of the control method of air-conditioning under high humidity heating condition of the invention；
Fig. 2 is the compressor of the control method of air-conditioning and the compressor of prior art under high humidity heating condition of the invention
Raising frequency process contrast schematic diagram；
Fig. 3 be the present invention high humidity heating condition under air-conditioning control method ambient humidity be more than 60% when, compressor,
The control logic schematic diagram of outer blower fan and expansion valve.
Embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining the technical principle of the present invention, it is not intended that limit the scope of the invention.Although for example,
The present invention is to combine compressor to set the embodiment in two raising frequency stages to be described, but this setup is not one
Into constant, in the case of without departing from the principle of the invention, those skilled in the art can also apply the inventive method to other
Application scenarios, as compressor can also set three even more raising frequency stages.
With reference first to Fig. 1, Fig. 1 is the schematic flow sheet of the control method of air-conditioning under high humidity heating condition of the invention.
As shown in figure 1, in order to solve present in now air-conditioned start raising frequency control method because the raising frequency time is long and
Cause quick heating effect poor and when ambient humidity is larger the problem of outdoor unit easy frosting, the invention provides a kind of high humidity
The control method of air-conditioning under heating condition, the control method mainly include the following steps that：
S100, ambient humidity is obtained, the starting switch of air-conditioning is pressed such as user to be made air-conditioning start shooting and select heating mode
Afterwards, air-conditioning obtains ambient humidity by hygrometer or humidity sensor etc., and wherein ambient humidity can refer to the relative of outdoor environment
Humidity；
S200, when ambient humidity is more than setting humidity, start the outer blower fan of air-conditioning, and according to the acceleration liter of setting
Speed such as when ambient humidity is more than a certain relative humidity, makes outer blower fan improve 1000r/ according to each second to first object rotating speed
Min acceleration starts, and the first object rotating speed for reaching 3000r/min at 3 seconds, it is preferable that humidity is set as 60%,
First object rotating speed is the maximum functional rotating speed of outer blower fan；
S300, while outer blower fan starts raising speed, before or after, the expansion valve opening of air-conditioning is quickly adjusted to
One target aperture, such as preferably, while outer blower fan starts, expansion valve is first decreased to benchmark from 480 steps according to pass valve speed
Aperture, then first object aperture is increased to from reference opening amount according to Valve opening velocity, it is preferable that expansion valve be electric expansion valve or its
He can control the expansion valve of aperture；
It should be noted that the aperture regulation of electric expansion valve is driven by stepper motor, stepper motor rotates most
Small angle range is referred to as a step, and therefore, the aperture regulation of electric expansion valve is typically all to be weighed by " step ".Such as expansion valve
Aperture is 200 steps.I.e. stepper motor drives expansion valve to turn to the 200th angular unit.Generally it is closed in air-conditioning
When, it is balance system pressure, expansion valve can all be in larger aperture, as expansion valve is closed in air-conditioning in the present invention
When aperture can be 480 steps.And reference opening amount is then according to operational mode setting and outdoor temperature and compressor frequency phase
The aperture answered, the setting of reference opening amount contribute to system pressure difference to establish, and realize air conditioner quickly cooling and speed heat.As benchmark of the present invention is opened
Degree can be 280 steps.That is, while outer blower fan starts, expansion valve opening is first from 480 steps according to closing valve speed such as
200P/s (i.e. 200 steps/second) is decreased to 280 steps, then increases to first object from 280 steps according to Valve opening velocity such as 40P/s again
Aperture (such as 400 steps).
S400, when outer blower fan and/or expansion valve reach and imposed a condition, make the compressor start of air-conditioning, such as in outer blower fan
Rotating speed raising speed to first object rotating speed and/or during expansion valve opening is adjusted to first object aperture, make sky
The compressor start of tune, it is preferable that reach first object rotating speed in outer blower fan, while when expansion valve reaches reference opening amount,
Making the compressor start of air-conditioning, now expansion valve is increased to the process and compressor start of first object aperture from reference opening amount
Process coincides, and the purpose is to the aperture moment for making expansion valve to keep the working frequency with compressor to match；
S500, making compressor, continuous raising frequency, such as after compressor start, makes compression stage by stage according to multiple setting speeds
Machine carries out raising frequency according to the first raising frequency speed, and the second raising frequency is immediately switched to after running to a certain frequency or after operation a period of time
Speed continues raising frequency；
S600, judge whether compressor frequency reaches first object frequency, such as obtain the current frequency of compressor in real time, and
By current frequency compared with first object frequency；
S700, when compressor frequency reaches first object frequency, make compressor stop raising frequency, such as reach in current frequency
During first object frequency, compressor is maintained first object frequency and work on.Preferably, first object aperture is and compression
The expansion valve opening that the first object frequency of machine matches, that is to say, that compressor start stage by stage continuous raising frequency to first
During target frequency, expansion valve opening also increases to first object aperture from reference opening amount just.
By foregoing description as can be seen that the present invention air-conditioning control method by ambient humidity be more than 60% when,
Make outer blower fan and expansion valve simultaneously prior to compressor start, and reach maximum functional rotating speed in outer blower fan and expansion valve reaches base
Start compressor during quasi- aperture, good radiating condition can be created for compressor in advance, delay outdoor unit frosting, and made swollen
Swollen valve opening matches in compressor start with the working frequency of compressor, avoid outer blower fan and expansion valve with compressor together
Compressor radiating effect is bad caused by startup and expansion valve opening occurs with the unmatched situation of compressor.Because
When outer blower fan wind speed is larger, the heat transfer coefficient of heat exchanger increases in outdoor unit, and the evaporating temperature of refrigerant rises, and then outdoor
The temperature difference of machine and external environment reduces, and reduces the tendency of outdoor unit frosting.Make compressor upon actuation with different raising frequency speed
The set-up mode of continuous raising frequency stage by stage is spent, then can greatly shorten the raising frequency time of compressor, after improving compressor start
Heating effect, and then the purpose quickly heated.In other words, present invention eliminates during compressor raising frequency oil return frequency
The process of continuous service in rate, then radiated while adjust expansion valve opening to benchmark by opening outer blower fan in advance and opened
Degree, and while control the mode of compressor raising frequency speed to ensure compressor normal oil return, additionally it is possible to complete the quick of compressor
Raising frequency, solve it is existing start raising frequency control method present in due to the raising frequency time grow caused by quick heating effect
The problem of difference, outdoor unit easy frosting, the comfortableness of air-conditioning is improved, improves Consumer's Experience.
Certainly, first object rotating speed is not only limited to a kind of form of maximum functional rotating speed, can improve compressor heat sink strip
In the case of part, the first object rotating speed can be arranged to any rational numerical value by those skilled in the art, so that it meets
More specifical application scenarios, as first object rotating speed can also be close to outer blower fan maximum functional rotating speed a certain tachometer value or
The maximum (top) speed value that outer blower fan can reach under outer boundary's environment temperature.Similarly, the setting of ambient humidity is not only limited to
A kind of 60% mode, those skilled in the art can be adjusted based on different regions Different climate condition, such as dry
Area can be appropriate raising this numerical value, setting humidity is arranged to 65% or so, reduced the area of weather moistening is appropriate
This numerical value, setting humidity is arranged to 55% or so etc..
Referring to Fig. 2, principle of the invention is expanded on further.Wherein, Fig. 2 is empty under high humidity heating condition of the invention
The raising frequency process contrast schematic diagram of the compressor of the control method of tune and the compressor of prior art.In Fig. 2, solid line represents this hair
The raising frequency process of compressor in bright control method, dotted line represent the raising frequency process of compressor in the prior art.
Entered as shown in Fig. 2 in the prior art, as compressor start is latter using fixed raising frequency speed V (such as 1Hz/s)
Row raising frequency, and it is provided with the first oil return frequency f during raising frequency in order to ensure the normal oil return of compressor1With the second oil return
Frequency f2, when compressor raising frequency to the first oil return frequency f1When, the lubricating oil in compressor is in or will be in oil starvation state,
Therefore compressor maintains a period of time in this frequency, ensures to be further continued for continuing with raising frequency speed V after the stable oil return of compressor
Raising frequency.Similarly, in compressor raising frequency to the second oil return frequency f2, and a period of time is maintained in this frequency, ensure that compressor is steady
The follow-up frequency of continuing rising of oil return is determined, until compressor reaches peak frequency fmaxAfter stop raising frequency.As stated in the Background Art, such liter
Frequency mode is due in the first oil return frequency f1With the second oil return frequency f2A period of time is maintained, therefore has had a strong impact on compressor
Raising frequency speed, although ensure that the stable oil return of compressor, can not meet the needs of quickly heating well.
With continued reference to Fig. 2, as the preferred embodiment of the present invention, the continuous raising frequency process of compressor can be divided into two
The individual stage, wherein, first stage compressor is with the first raising frequency speed V1Raising frequency is carried out, second is entered when raising frequency to transition frequency
Stage.Second stage compressor is with the second raising frequency speed V2Raising frequency is carried out, during raising frequency to first object frequency, stops raising frequency.It is excellent
Selection of land, transition frequency could be arranged to the first oil return frequency f1.First raising frequency speed V1More than the second raising frequency speed V2, such as can be with
First raising frequency speed is arranged to 1.2Hz/s, the second raising frequency speed is arranged to 0.5Hz/s.
That is, in the control method of the present invention, S500 may further include following steps again：
S510, make compressor according to the first raising frequency speed V1Carry out raising frequency, as the control system of air-conditioning make compressor according to
1.2Hz/s raising frequency speed carries out raising frequency；
S520, judge whether compressor frequency reaches transition frequency, transition frequency is such as arranged to the first oil return frequency f1,
Control system judges whether the current frequency of compressor reaches the first oil return frequency f1；
S530, in compressor frequency reach transition frequency f1When, make compressor according to the second raising frequency speed V2Carry out raising frequency,
The current frequency for such as judging compressor in control system reaches f1When, make compressor continue to rise according to 0.5Hz/s raising frequency speed
Frequently, to ensure the stable oil return of compressor on the premise of continuous raising frequency, complete the quick heating of air-conditioning.
Preferably, transition frequency f1Less than first object frequency, and first object set of frequency is the maximum work of compressor
Working frequency fmax。
The advantages of arrangement above mode, is：By controlling the raising frequency speed during compressor raising frequency so that compressor
During with different raising frequency speed raising frequencies, the speed/rate for discharging the lubricating oil of compressor also correspondingly changes,
And then oil return speed/speed of oil return capillary is adapted to, ensure that the oil return of compressor is stable.Specifically, by making compressor
In transition frequency f1Change raising frequency speed, that is, carry out the setting side of raising frequency in two stages with raising frequency speed first quick and back slow
Formula so that compressor is with the first raising frequency speed V1During raising frequency, the speed/rate of the discharge compressor of lubricating oil is met or exceeded
Oil return speed/speed of oil return capillary, the lubricating oil in compressor gradually decrease.When reaching transition frequency f1When, compressor
Then according to the second raising frequency speed V2Raising frequency is carried out, the lubricating oil for now discharging compressor greatly reduces, lubricating oil discharge compression
The speed/rate of machine is less than oil return speed/speed of oil return capillary, and then the lubricants capacity in compressor is ensured.
That is the present invention can ensure the normal oil return of compressor by the change of raising frequency speed, while by cancelling in oil return frequency
The control mode of continuous running phases has correspondingly speeded up the raising frequency speed of compressor, enable compressor quickly raising frequency to most
Big working frequency, and then run with maximum operation frequency, meet the needs of user quickly heats.Reference picture 2 can significantly be seen
Go out, tested repeatedly through inventor, the time that compressor of the invention reaches maximum operation frequency considerably less than presses in the prior art
Contracting machine reaches the time of maximum operation frequency.
Mode is preferably set up it is pointed out that above-mentioned and concrete numerical value is used merely to illustrate the principle of the present invention, and
It is not intended in limiting the scope of the invention, on the premise of without departing from the principle of the invention, those skilled in the art can be with
Any form of adjustment is done to above-mentioned parameter, as long as the technical scheme after adjustment can ensure the premise of the normal oil return of compressor
The lower condition for improving raising frequency speed.Such as the raising frequency stage further can also be divided into three phases, each stage is with difference
Raising frequency speed (the fast mode of such as speed) carry out raising frequency；Transition frequency according to the first oil return frequency can also float downward
It is dynamic；The maximum operation frequency of the uncompressed machine of first object frequency, but value close to maximum operation frequency etc..
In addition, preferably to improve the experience that user uses air-conditioning, when compressor is worked with maximum operation frequency, this hair
The control method of bright air-conditioning can also comprise the following steps：
S800, ambient parameter is obtained, such as obtain current environment temperature (such as indoor temperature)；
S900, reach in ambient parameter/close to target component when, compressor is downconverted to the second target frequency, make simultaneously
The rotating speed of outer blower fan is reduced to the second rotating speed of target, expansion valve opening is decreased to the second target aperture, and such as temperature reaches indoors
The target temperature of user's setting or during close to target temperature, makes compressor be downconverted to rated operation frequency or be reduced to and extraneous ring
The working frequency that border temperature matches, while the rotating speed of outer blower fan is reduced to nominal operation rotating speed or is matched with compressor
Working speed, and the aperture of expansion valve is decreased to the aperture to match with the present operating frequency of compressor.
So have the advantage that：After air-conditioning quickly heats a period of time, indoor temperature can rise accordingly, work as room
Interior temperature reaches/close to user's setting temperature when, compressor does not just have to continue to operate in maximum operation frequency, and outer blower fan is natural
Radiated without maximum (top) speed is operated in, expansion valve is without being operated in the first object aperture matched with compressor.
At this moment compressor is downconverted to rated operation frequency or the working frequency more matched with current outdoor environment (such as outdoor temperature),
And the rotating speed of outer blower fan is reduced to nominal operation rotating speed or the rotating speed to match with compressor, and the aperture by expansion valve
Be decreased to the aperture to match with compressor, can not only ensure the normal work of air-conditioning, and effectively extend compressor,
The working life of outer blower fan and expansion valve.
Certainly, ambient parameter and corresponding target component are not unalterable, can also be ambient humidity (as outdoor is wet
Degree) and the target humidity etc. that sets of user.
Present invention also offers a kind of control system of air-conditioning under high humidity heating condition, the control system mainly includes：
Acquisition module, it is used to obtain ambient humidity, and after air-conditioning start selection heating mode, acquisition module collection is outdoor
The relative humidity of environment；
First control module, it is used to, when ambient humidity is more than setting humidity, start the outer blower fan of air-conditioning, and according to
The acceleration raising speed of setting is to first object rotating speed, and such as when ambient humidity is more than a certain relative humidity, the first control module makes
Outer blower fan is according to the acceleration raising speed of setting to maximum functional rotating speed；
Second control module, it is used to reach benchmark in outer blower fan raising speed to first object rotating speed and/or expansion valve
During aperture, make compressor start, and make compressor according to multiple setting speeds, stage by stage continuous raising frequency, and in compressor frequency
When rate reaches first object frequency, compressor is set to stop raising frequency；
3rd control module, it is used for while the outer blower fan starts raising speed, before or after (as simultaneously), make sky
The expansion valve opening of tune is decreased to reference opening amount according to the pass valve speed of setting, and reaches reference opening amount in expansion valve opening
When, expansion valve is increased to first object aperture according to the Valve opening velocity of setting；
Judge module, it is used to judging whether being more than setting humidity, outer blower fan by ambient humidity whether raising speed to be to first object
Whether rotating speed, expansion valve reach reference opening amount and whether compressor reaches first object frequency.
Wherein, the second control module makes compressor according to multiple setting speeds as follows, stage by stage continuous raising frequency：
Second control module makes compressor according to the first raising frequency speed V1Carry out raising frequency；
Judge module judges whether compressor frequency reaches transition frequency f1；
Reach transition frequency f in compressor frequency1When, the second control module makes compressor according to the second raising frequency speed V2Enter
Row raising frequency；
Preferably, the first raising frequency speed V1More than the second raising frequency speed V2, transition frequency f1Less than first object frequency, and
And first object frequency is the maximum operation frequency f of compressormax, first object aperture be and maximum operation frequency fmaxMatch
Expansion valve opening.
In addition, acquisition module is additionally operable to obtain ambient parameter, outdoor/indoor temperature and outdoor/interior are such as obtained in real time
Humidity etc.；
After acquisition module obtains ambient parameter, judge module is additionally operable to judge whether the ambient parameter reaches target ginseng
Number, such as target component are the target temperature of the heating of user's setting；
First control module is additionally operable to when ambient parameter reaches target component, make the rotating speed of outer blower fan be reduced to the second mesh
Mark rotating speed；Second control module is additionally operable to, when ambient parameter reaches target component, make compressor be downconverted to the second target frequency；
3rd control module is additionally operable to when ambient parameter reaches target component, expansion valve opening is decreased to the second target aperture；Such as
When temperature reaches the target temperature of user's setting indoors, the first control module makes the rotating speed of outer blower fan be down to nominal operation turn
Speed, the second control module make compressor be downconverted to rated operation frequency, and the 3rd control module makes expansion valve opening be decreased to and press
The aperture that contracting machine rated operation frequency matches.
It will be appreciated to those of skill in the art that the first control module, the second control module, the 3rd control module and
The physical form of judge module can be independent of each other, naturally it is also possible to the function list being integrated on a physical module
Member.Control system such as air-conditioning includes memory and processor, and be stored in memory and can run on a processor
Computer program, the computer program can complete above-mentioned first control module, the second control module, the 3rd control module and sentence
The function of disconnected module.
Letter is done to the control method of air-conditioning under the high humidity heating condition of the present invention and the operation principle of system with reference to Fig. 3
Illustrate.Fig. 3 be the present invention high humidity heating condition under air-conditioning control method ambient humidity be more than 60% when, compressor,
The control logic schematic diagram of outer blower fan and expansion valve.
As shown in figure 3, air-conditioning, in heating mode, the course of work of outer blower fan, expansion valve and compressor can be：
Air-conditioning start heating → acquisition outside relative humidity → and when outside relative humidity is more than 60%, outer blower fan is according to adding
Speed a1' rotating speed is improved, while expansion valve is according to pass valve speed V21' from aperture B1' start to reduce aperture → through T1After time interval
Outer blower fan reaches maximum functional rotating speed n '1, expansion valve reaches reference opening amount B' simultaneously2When, compressor start, and according to raising frequency speed
Spend V11' raising frequency, outer blower fan holding maximum functional rotating speed operation, expansion valve is according to Valve opening velocity V22' increase aperture → through T2Time
Compressor frequency reaches transition frequency f behind interval1' when, with raising frequency speed V12' continuing raising frequency, expansion valve continues according to valve opening speed
Spend V22' increase aperture → through T3Compressor frequency reaches maximum operation frequency f ' after time interval2And stopping raising frequency, expansion valve is opened
Degree reaches and f '2The B ' of matching3And stably in this aperture → through T4Indoor temperature reaches the design temperature of user after time interval,
Compressor is with frequency reducing speed V13' frequency reducing, while outer blower fan is with acceleration a2' carrying out reduction rotating speed, expansion valve is to close valve speed V23'
Reduction aperture → through T5Compressor frequency is down to rated operation frequency f ' after time interval3And maintain in this frequency, while outer blower fan
Rotating speed is down to nominal operation rotating speed n '1And maintain in this frequency, expansion valve opening is decreased to and f '3The B' of matching4And maintain herein
Frequency.
Above-mentioned preferred embodiment, the control method of air-conditioning mainly include：Obtain outside relative humidity；In relative humidity
During more than 60%, make outer blower fan start and according to setting acceleration raising speed to maximum functional rotating speed；Simultaneously make expansion valve according to
Setting closes valve speed and reduces aperture to reference opening amount；Reach maximum functional rotating speed in outer blower fan and expansion valve opening reaches base simultaneously
During quasi- aperture, make compressor start and according to the first raising frequency speed and the second continuous raising frequency of raising frequency speed, at the same make expansion valve by
Increase aperture according to Valve opening velocity；Judge whether the frequency of compressor reaches maximum operation frequency；When the frequency of compressor reaches most
Stop raising frequency after big working frequency, while expansion valve reaches the aperture to match with maximum operation frequency.Wherein, the first raising frequency speed
Degree is more than the second raising frequency speed.The control system of air-conditioning include the first control module, the second control module, the 3rd control module,
Judge module and acquisition module.Expansion valve is adjusted while by first opening outer blower fan when relative humidity is more than 60%, is made
Outer blower fan reaches maximum (top) speed and expansion valve opening is decreased to make compressor start during reference opening amount, and makes compressor with elder generation
Slow raising frequency speed carries out raising frequency in two stages after fast, while expansion valve is increased aperture to the setting side of first object aperture
Formula so that the present invention can create good condition of work in advance by outer blower fan and expansion valve, delay frosting, and pass through pressure
While the change of contracting machine raising frequency speed ensures compressor normal oil return, additionally it is possible to quick raising frequency to maximum operation frequency, and then
Run with maximum operation frequency, meet the needs of user quickly heats, lift Consumer's Experience.
So far, combined preferred embodiment shown in the drawings describes technical scheme, still, this area
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these embodiments.Without departing from this
On the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to correlation technique feature, these
Technical scheme after changing or replacing it is fallen within protection scope of the present invention.
Claims (10)
1. the control method of air-conditioning under a kind of high humidity heating condition, it is characterised in that the control method comprises the following steps：
Obtain ambient humidity；
When the ambient humidity is more than setting humidity, start the outer blower fan of the air-conditioning, and according to the acceleration liter of setting
Speed is to first object rotating speed；
During the outer blower fan raising speed to the first object rotating speed, make the compressor start of the air-conditioning；
Make the compressor according to multiple raising frequency speed, stage by stage continuous raising frequency.
2. the control method of air-conditioning under high humidity heating condition according to claim 1, it is characterised in that the control method
Also include：
After continuous raising frequency stage by stage, judge whether compressor frequency reaches first object frequency；
When the compressor frequency reaches the first object frequency, the compressor is set to stop raising frequency.
3. the control method of air-conditioning under high humidity heating condition according to claim 2, it is characterised in that " in the exogenous wind
During machine raising speed to the first object rotating speed, make the compressor start of the air-conditioning " the step of further comprise：
When the outer blower fan reaches the first object rotating speed, make the compressor start of the air-conditioning.
4. the control method of air-conditioning under high humidity heating condition according to claim 2, it is characterised in that " make the compression
Machine is according to multiple setting speeds, continuous raising frequency stage by stage " the step of further comprise：
The compressor is set to carry out raising frequency according to the first raising frequency speed；
Judge whether the compressor frequency reaches transition frequency；
When the compressor frequency reaches the transition frequency, the compressor is set to carry out raising frequency according to the second raising frequency speed；
Wherein, the transition frequency is less than the first object frequency.
5. the control method of air-conditioning under high humidity heating condition according to claim 4, it is characterised in that first raising frequency
Speed is more than the second raising frequency speed, and/or the maximum operation frequency that the first object frequency is the compressor,
And/or the first object rotating speed be the outer blower fan maximum functional rotating speed, and/or it is described set humidity as
60%.
6. the control method of air-conditioning under high humidity heating condition according to any one of claim 1 to 5, it is characterised in that
The control method also includes：
Obtain ambient parameter；
When the ambient parameter reaches target component, the compressor is downconverted to the second target frequency, and make described outer
The rotating speed of blower fan is reduced to the second rotating speed of target.
7. the control method of air-conditioning under high humidity heating condition according to claim 6, it is characterised in that the ambient parameter
For environment temperature or the ambient humidity, the target component is accordingly target temperature or target humidity.
8. the control system of air-conditioning under a kind of high humidity heating condition, it is characterised in that the control system includes：
Acquisition module, it is used to obtain ambient humidity；
First control module, it is used to, when the ambient humidity is more than setting humidity, start the outer blower fan of the air-conditioning, and
According to the acceleration raising speed of setting to first object rotating speed；
Second control module, it is used to, when the outer blower fan raising speed is to the first object rotating speed, make the compression of the air-conditioning
Machine starts, and makes the compressor according to multiple setting speeds, stage by stage continuous raising frequency, and reach first in compressor frequency
During target frequency, the compressor is set to stop raising frequency；
Judge module, its be used to judging the ambient humidity whether be more than the setting humidity, the outer blower fan whether raising speed extremely
Whether the first object rotating speed and the compressor frequency reach the first object frequency.
9. the control system of air-conditioning under high humidity heating condition according to claim 8, it is characterised in that second control
Module makes the compressor according to multiple setting speeds continuous raising frequency stage by stage as follows：
Second control module makes the compressor carry out raising frequency according to the first raising frequency speed；
The judge module judges whether the compressor frequency reaches transition frequency；
When the compressor frequency reaches the transition frequency, second control module makes the compressor according to second liter
Frequency speed carries out raising frequency；
Wherein, the transition frequency is less than the first object frequency；And/or
The first raising frequency speed is more than the second raising frequency speed.
10. the control system of air-conditioning under high humidity heating condition according to claim 8, it is characterised in that
The acquisition module is additionally operable to obtain ambient parameter；
The judge module is additionally operable to judge whether the ambient parameter reaches target component；
First control module is additionally operable to the rotating speed for when the ambient parameter reaches the target component, making the outer blower fan
It is reduced to the second rotating speed of target；
Second control module is additionally operable to, when the ambient parameter reaches the target component, be downconverted to the compressor
Second target frequency；
Wherein, the ambient parameter is environment temperature or the ambient humidity, the target component accordingly for target temperature or
Target humidity.
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| CN107631438B (en) | 2020-09-25 |
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Effective date of registration: 20201103 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Patentee before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |