CN107655247A - The control method and system of air-conditioning under refrigeration mode - Google Patents
The control method and system of air-conditioning under refrigeration mode Download PDFInfo
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- CN107655247A CN107655247A CN201710866326.6A CN201710866326A CN107655247A CN 107655247 A CN107655247 A CN 107655247A CN 201710866326 A CN201710866326 A CN 201710866326A CN 107655247 A CN107655247 A CN 107655247A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 56
- 238000005057 refrigeration Methods 0.000 title claims abstract description 42
- 230000007704 transition Effects 0.000 claims description 27
- 230000001133 acceleration Effects 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 45
- 239000010687 lubricating oil Substances 0.000 description 12
- 230000003247 decreasing effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 235000003642 hunger Nutrition 0.000 description 3
- 230000037351 starvation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000004590 computer program Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0253—Compressor control by controlling speed with variable speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
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 refrigeration mode.Present invention seek to address that the problem of causing fast-refrigerating effect difference because the raising frequency time is long present in existing air-conditioned start raising frequency control method.For this purpose, the control method of the present invention includes：Start outer blower fan, 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 purpose of fast-refrigerating 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 and system of air-conditioning under a kind of refrigeration mode.
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.It is more comfortable so as to bring in order to meet the needs of user's fast-refrigerating by taking air-conditioning as an example
Usage experience, existing air-conditioning typically all can run the quick raising frequency of compressor to higher frequency in firm start.Compressing
When machine is run, the refrigerant in compressor can be discharged promptly, be circulated in pipe-line system.In cyclic process, lubricating oil
Compressor can be together discharged with refrigerant, entered in pipeline, this parts of lubricating oil only discharged smoothly returns to compressor
In (i.e. oil return), the dynamic equilibrium of lubricating oil in whole system could be maintained, otherwise, compressor can damage because of oil starvation.Mesh
The preceding most air-conditioning of in the market uses the set-up mode that oil eliminator is combined with oil return capillary, and the lubricating oil for discharging compressor is led to
Oil eliminator is crossed to separate and then return in compressor by oil return capillary.But for convertible frequency air-conditioner, with pressure
The rise of contracting machine working frequency, the velocity of discharge/speed of lubricating oil is also increasingly faster, when the velocity of discharge/speed of lubricating oil surpasses
When crossing maximum oil return speed/speed of oil return capillary, the phenomenon of oil starvation is just easily produced.Therefore in order to ensure normal 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)
Continuous service for a period of time, treats 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 during fast-refrigerating of starting shooting
The speed of maximum operation frequency is reached, also increases the time of fast-refrigerating after air-conditioning start, and then influences air-conditioning and quickly makes
Cold effect, 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 fast-refrigerating effect difference.
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 problem of causing fast-refrigerating effect difference because the raising frequency time is long, the invention provides air-conditioning under a kind of refrigeration mode
Control method, the control method comprise the following steps：
Start the outer blower fan of the air-conditioning, and according to setting acceleration raising speed 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 refrigeration mode in the optimal technical scheme of the control method of air-conditioning, the control method also includes：
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 refrigeration mode in the optimal technical scheme of the control method of air-conditioning, " in the outer blower fan raising speed to institute
During stating 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.
Under above-mentioned refrigeration mode in the optimal technical scheme of the control method of air-conditioning, " make the compressor according to multiple
The step of setting speed, 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 refrigeration mode in the optimal technical scheme of the control method of air-conditioning, the first raising frequency speed is more than institute
The second raising frequency speed is stated, and/or the maximum operation frequency that the first object frequency is the compressor, and/or
The first object rotating speed is the maximum functional rotating speed of the outer blower fan.
Under above-mentioned refrigeration mode in the optimal technical scheme of the control method of air-conditioning, the control method also includes：
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 refrigeration mode in the optimal technical scheme of the control method of air-conditioning, the ambient parameter is environment temperature
Or 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 refrigeration mode, the control system includes：
First control module, it is used to make the outer blower fan of the air-conditioning to start, and according to setting acceleration raising speed to
One rotating speed of target；
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 judging the outer blower fan, and whether raising speed is to the first object rotating speed, and the compression
Whether unit frequency reaches the first object frequency.
Under above-mentioned refrigeration mode in the optimal technical scheme of the control system of air-conditioning, second control module is under
Row mode makes the compressor according to multiple setting speeds continuous raising frequency stage by stage：
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 refrigeration mode in the optimal technical scheme of the control system of air-conditioning, the control system also includes：
Acquisition module, it is used 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 ambient humidity, the target component accordingly for target temperature or
Target humidity.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, air-conditioning under refrigeration mode
Control method includes：Start the outer blower fan of air-conditioning, and according to setting acceleration raising speed to first object rotating speed；In outer blower fan
During raising speed to first object rotating speed, make the compressor start of air-conditioning；Make compressor according to multiple setting speeds, it is continuous stage by stage to rise
Frequently；Judge whether compressor frequency reaches first object frequency；When compressor frequency reaches first object frequency, make compressor
Stop raising frequency.By cancelling the continuous running phases during compressor raising frequency in oil return frequency, then opening compressor
With different raising frequency speed, the raising frequency time of compressor can be greatly shortened in continuous raising frequency, the present invention stage by stage after dynamic, and then
Reach the purpose of fast-refrigerating, lift the comfortableness of air-conditioning, improve Consumer's Experience.And by making exogenous wind before compressor start
Machine reaches first object rotating speed, that is, drives air flow to be radiated as compressor using high rotating speed in advance, when making compressor start
Just possess good radiating condition, avoid outer blower fan together start with compressor caused by the bad feelings of compressor radiating effect
Condition occurs, and improves the refrigeration after compressor start.
Specifically, compressor start when outer blower fan reaches maximum (top) speed, the first raising frequency is first according to after compressor start
Speed carries out raising frequency, when compressor frequency reaches transition frequency, compressor is carried out raising frequency according to the second raising frequency speed, is pressing
When contracting unit frequency reaches first object frequency, compressor is set to stop raising frequency.Wherein, transition frequency is less than first object frequency, the
One raising frequency speed is more than the second raising frequency speed.Preferably, first object frequency is the maximum operation frequency of compressor.The application's
Inventor makes compressor be divided to two with raising frequency speed first quick and back slow by experiment is found repeatedly when outer blower fan reaches maximum (top) speed
Individual or more stage carries out raising frequency, and the present invention can not only ensure that compressor normally returns by the phasic Chang of raising frequency speed
Oil, while compressor raising frequency can also be greatly shortened to the time of maximum operation frequency, meet the needs of user's fast-refrigerating.
Brief description of the drawings
With reference to the accompanying drawings come describe the present invention refrigeration mode 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 refrigeration mode of the invention；
Fig. 2 is the raising frequency of the compressor of the control method of air-conditioning and the compressor of prior art under refrigeration mode of the invention
Process contrast schematic diagram；
Fig. 3 is the control of the compressor of the control method of air-conditioning, outer blower fan and expansion valve under refrigeration mode of the invention
Logical schematic.
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 refrigeration mode 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
The problem of causing fast-refrigerating effect difference, the invention provides a kind of control method of air-conditioning under refrigeration mode, the control method
Mainly include the following steps that：
S100, start the outer blower fan of air-conditioning, and pressed according to acceleration raising speed to the first object rotating speed, such as user of setting
The starting switch of dynamic air-conditioning makes air-conditioning start shooting and outer blower fan is improved 1000r/min's according to each second after selecting refrigeration mode
Acceleration starts, and the first object rotating speed for reaching 3000r/min at 3 seconds, it is preferable that first object rotating speed is outer blower fan
Maximum functional rotating speed；
S200, while outer blower fan starts raising speed, before or after, the expansion valve opening of air-conditioning is quickly adjusted to
One target aperture, while such as outer blower fan starts, expansion valve is first decreased to reference opening amount according to closing valve speed from 480 steps, then from
Reference opening amount increases to first object aperture according to Valve opening velocity, it is preferable that expansion valve is electric expansion valve or other can be controlled
The expansion valve of aperture processed；
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).
S300, 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 adjusted to first object rotating speed and/or expansion valve opening to first object aperture during, make air-conditioning
Compressor start, it is preferable that reach first object rotating speed in outer blower fan, while when expansion valve reaches reference opening amount, make air-conditioning
Compressor start；
S400, 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；
S500, 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；
S600, 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 control method of the air-conditioning of the present invention is turned by making outer blower fan reach maximum functional
Good radiating condition can be created for compressor in advance by starting compressor when fast, be started when reaching reference opening amount by expansion valve
Compressor, can make expansion valve opening in compressor start and the working frequency of compressor matches, and avoid outer blower fan and swollen
Compressor radiating effect is bad caused by swollen valve together starts with compressor and expansion valve opening and compressor it is unmatched
Situation occurs.And make compressor upon actuation with the set-up mode of different raising frequency speed continuous raising frequency stage by stage, can be significantly
Shorten the raising frequency time of compressor, improve the refrigeration after compressor start, and then the purpose of fast-refrigerating.In other words
Say, present invention eliminates during compressor raising frequency in oil return frequency continuous service process, it is then outer by opening in advance
Blower fan is radiated while adjusts expansion valve opening to reference opening amount and control the mode of compressor raising frequency speed, ensure that pressure
While the normal oil return of contracting machine, additionally it is possible to complete the quick raising frequency of compressor, solve in existing start raising frequency control method
Existing the problem of causing fast-refrigerating effect difference because the raising frequency time is long, the comfortableness of air-conditioning is improved, improves user
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.
Referring to Fig. 2, principle of the invention is expanded on further.Wherein, Fig. 2 is air-conditioning under refrigeration mode of the invention
The raising frequency process contrast schematic diagram of the compressor of control method and the compressor of prior art.In Fig. 2, solid line represents the present invention's
The raising frequency process of compressor in 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 fast-refrigerating 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, S400 may further include following steps again：
S410, 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；
S420, 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；
S430, 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 fast-refrigerating 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's fast-refrigerating.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：
S700, ambient parameter is obtained, such as obtain current environment temperature (such as indoor temperature)；
S800, 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：Air-conditioning fast-refrigerating for a period of time after, indoor temperature can decline accordingly, work as ring
Border 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 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 of expansion valve is reduced
It to the aperture to match with compressor, can not only ensure the normal work of air-conditioning, and effectively extend compressor, exogenous wind
The working life of machine and expansion valve.
Certainly, ambient parameter and corresponding target component are not unalterable, can also be ambient humidity (such as interior/room
Outer humidity) and user's setting target humidity etc..
Present invention also offers a kind of control system of air-conditioning under refrigeration mode, the control system mainly includes：
First control module, it is used to make the outer blower fan of air-conditioning to start, and according to setting acceleration raising speed to the first mesh
Rotating speed is marked, after air-conditioning start refrigeration, the first control module makes outer blower fan turn according to acceleration raising speed to the maximum functional of setting
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, make the expansion of air-conditioning
Valve opening is decreased to reference opening amount according to the pass valve speed of setting, and when expansion valve opening reaches reference opening amount, makes expansion
Valve increases to first object aperture according to the Valve opening velocity of setting；
Judge module, it is used to judge whether raising speed to first object rotating speed, expansion valve opening reaches base to outer blower fan
Whether quasi- aperture and compressor reach 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, the control system of air-conditioning also includes：
Acquisition module, it is used to obtain ambient parameter, such as obtains outdoor/indoor temperature and outdoor/indoor humidity；
After acquisition module obtains ambient parameter, judge module is additionally operable to judge whether the ambient parameter reaches target ginseng
Number, such as the target temperature that target component is the refrigeration that user sets, or target humidity of setting etc.；
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 second control module makes compressor be downconverted to nominal operation frequency first
Rate, then the first control module the rotating speed of outer blower fan is down to nominal operation rotating speed, the 3rd control module subtracts expansion valve opening
The aperture as low as to match with compressor rated operation frequency.
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.
The control method of air-conditioning under the refrigeration mode of the present invention and the operation principle of system are done briefly with reference to Fig. 3
It is bright.Fig. 3 is that the control logic of the compressor of the control method of air-conditioning, outer blower fan and expansion valve under refrigeration mode of the invention is shown
It is intended to.
As shown in figure 3, air-conditioning, in refrigeration mode, the course of work of outer blower fan, expansion valve and compressor can be：
Air-conditioning start refrigeration → outer blower fan is according to acceleration a1' rotating speed is improved, while expansion valve is according to pass valve speed V21' from
Aperture B1' start to reduce aperture → through T1Outer blower fan reaches maximum functional rotating speed n after time interval1', expansion valve reaches base simultaneously
Quasi- aperture B'2When, compressor start, and according to raising frequency speed V11' raising frequency, outer blower fan holding maximum functional rotating speed operation, expansion
Valve is according to Valve opening velocity V22' increase aperture → through T2Compressor frequency reaches transition frequency f after time interval1' when, with raising frequency speed
Spend V12' continuing raising frequency, expansion valve continues according to Valve opening velocity V22' increase aperture → through T3Compressor frequency reaches after time interval
Maximum operation frequency f2' and stop raising frequency, expansion valve opening reaches and f2' matching B3' and stably in this aperture → through T4Time
Indoor temperature reaches the design temperature of user behind interval, and compressor is with frequency reducing speed V13' frequency reducing, while outer blower fan is with acceleration
a2' rotating speed is reduced, expansion valve is to close valve speed V23' reduction aperture → through T5Compressor frequency is down to nominal operation after time interval
Frequency f3' and maintain in this frequency, while outer rotation speed of fan is down to nominal operation rotating speed n1' and maintain to open in this frequency, expansion valve
Degree is decreased to and f3' matching B'4And maintain in this frequency.
Above-mentioned preferred embodiment, the control method of air-conditioning mainly include：Make outer blower fan startup and adding according to setting
Speed raising speed is to maximum functional rotating speed；Expansion valve is closed valve speed according to setting simultaneously and reduce aperture to reference opening amount；In exogenous wind
Machine reaches maximum functional rotating speed and when expansion valve opening reaches reference opening amount simultaneously, makes compressor start and according to the first raising frequency speed
Degree and the second continuous raising frequency of raising frequency speed, while expansion valve is increased aperture according to Valve opening velocity；Judging the frequency of compressor is
It is no to reach maximum operation frequency；Stop raising frequency after the frequency of compressor reaches maximum operation frequency, at the same expansion valve reach with
The aperture that maximum operation frequency matches.Wherein, the first raising frequency speed is more than the second raising frequency speed.The control system of air-conditioning includes
First control module, the second control module, the 3rd control module, judge module and acquisition module.By first opening outer blower fan
While adjust expansion valve, outer blower fan is reached maximum (top) speed while when expansion valve opening is decreased to reference opening amount, make compressor
Start and compressor is carried out raising frequency in two stages with raising frequency speed first quick and back slow, while make expansion valve increase aperture extremely
The set-up mode of first object aperture so that compressor of the invention can shift to an earlier date uncompressed machine wound by outer blower fan and expansion valve
While making the change of good condition of work and compressor raising frequency speed and ensure compressor normal oil return, additionally it is possible to quick
Raising frequency is run to maximum operation frequency, and then with maximum operation frequency, meets the needs of user's fast-refrigerating.
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 refrigeration mode, it is characterised in that the control method comprises the following steps：
Start the outer blower fan of the air-conditioning, and according to setting acceleration raising speed 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 refrigeration mode according to claim 1, it is characterised in that 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.
3. the control method of air-conditioning under refrigeration mode according to claim 2, it is characterised in that " in the outer blower fan liter
Speed is 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.
4. the control method of air-conditioning under refrigeration mode according to claim 2, it is characterised in that " make the compressor by
The step of according to multiple setting speeds, continuous raising frequency stage by stage ", 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 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 refrigeration mode according to claim 4, it is characterised in that the first raising frequency speed
More than the second raising frequency speed, and/or the maximum operation frequency that the first object frequency is the compressor, and
And/or the maximum functional rotating speed that first object rotating speed described in person is the outer blower fan.
6. the control method of air-conditioning under refrigeration mode according to any one of claim 1 to 5, it is characterised in that described
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 refrigeration mode according to claim 6, it is characterised in that the ambient parameter is ring
Border temperature or ambient humidity, the target component are accordingly target temperature or target humidity.
8. the control system of air-conditioning under a kind of refrigeration mode, it is characterised in that the control system includes：
First control module, it is used to make the outer blower fan of the air-conditioning to start, and according to setting acceleration raising speed to the first mesh
Mark 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, it is used to judging the outer blower fan, and whether raising speed is to the first object rotating speed, and compressor frequency
Whether rate reaches the first object frequency.
9. the control system of air-conditioning under refrigeration mode according to claim 8, it is characterised in that second control module
Make the compressor as follows according to multiple setting speeds continuous raising frequency stage by stage：
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 refrigeration mode according to claim 8, it is characterised in that the control system is also
Including：
Acquisition module, it is used 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 ambient humidity, and the target component is accordingly target temperature or target
Humidity.
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Effective date of registration: 20221021 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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