CN108870647A - The control method of air-conditioning under heating mode - Google Patents
The control method of air-conditioning under heating mode Download PDFInfo
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- CN108870647A CN108870647A CN201810277513.5A CN201810277513A CN108870647A CN 108870647 A CN108870647 A CN 108870647A CN 201810277513 A CN201810277513 A CN 201810277513A CN 108870647 A CN108870647 A CN 108870647A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/48—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring prior to normal operation, e.g. pre-heating or pre-cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Abstract
The present invention relates to air-conditioning technical fields, and in particular to the control method of air-conditioning under a kind of heating mode.Present invention seek to address that the problem that universality existing for the control method of existing air-conditioning is poor, user experience is bad.For this purpose, control method of the invention includes：Obtain outdoor environment temperature；According to the first fitting formula, the pass valve speed of expansion valve is calculated；According to the second fitting formula, the acceleration of outer blower is calculated；According to third fitting formula, compressor is calculated in the raising frequency speed in raising frequency stage；It controls expansion valve and closes valve to target aperture according to valve speed is closed；Outer blower is controlled according to acceleration raising speed to rotating speed of target；Preferably, when expansion valve closes valve to target aperture and outer blower raising speed to rotating speed of target, control compressor carries out raising frequency according to raising frequency speed.By above-mentioned control mode, the control method of air-conditioning can be improved the universality of air-conditioning under heating mode of the invention, improve the usage experience of user.
Description
Technical field
The present invention relates to air-conditioning technical fields, and in particular to the control method of air-conditioning under a kind of heating mode.
Background technique
With the increasingly raising of living standard, requirement of the people for quality of life is also higher and higher, and this requirement is in
Embody particularly evident on electrical appliance.By taking air-conditioning as an example, in order to meet the needs of user quickly heats, to be brought for user easypro
Suitable usage experience, existing air-conditioning generally can all be such that the quick raising frequency of compressor to higher frequency runs (such as in rigid booting
Raising frequency is to maximum operation frequency).During compressor is quickly ramped up to high frequency, in order to guarantee normal oil return, it will usually force
Compressor continuous service in some or certain fixed frequencies (oil return frequency) for a period of time, stablizes subsequent frequency of continuing rising to oil return.
But the compressor set-up mode of continuous service for a period of time in oil return frequency is forced, so that air-conditioning was quickly heated in booting
Cheng Zhong, the raising frequency overlong time of compressor slow down the speed that compressor reaches maximum operation frequency, and then it is quick to influence air-conditioning
The effect of heating.
For the above problem for solving air-conditioning, the application for a patent for invention of Publication No. CN107576016A discloses a kind of " empty
The control method and system of tune ".Specifically, the control method mainly includes：Make the compressor start of air-conditioning；Make compressor by
According to multiple setting speeds, continuous raising frequency stage by stage；After continuous raising frequency stage by stage, judge whether compressor frequency reaches first
Target frequency；When compressor frequency reaches first object frequency, compressor is made to stop raising frequency.This application mainly passes through cancellation pressure
Continuous running phases during contracting machine raising frequency in oil return frequency then make compressor after actuation with different raising frequency speed
The mode of continuous raising frequency stage by stage shortens the raising frequency time of compressor, realizes the purpose quickly heated.Although above-mentioned control method
It solves the problems, such as that quick heating effect is poor in the prior art to a certain extent, but is also inevitably present following defect：
Firstly, not all user quickly heats after requiring air-conditioning booting, nor being suitable under all environmental conditions quickly
Heating, therefore there is universality difference in actual use in above-mentioned control method.Secondly, the quick raising frequency of air-conditioning can be corresponding
Ground causes noise to become larger, and for some special users or occasion (such as insomnia user or library), the generation of noise is non-
Often influence the usage experience of user.
Correspondingly, this field needs a kind of control method of air-conditioning under new heating mode to solve the above problems.
Summary of the invention
It is pervasive existing for the control method of existing air-conditioning in order to solve in order to solve the above problem in the prior art
The problem that property is poor, user experience is bad, the present invention provides a kind of control method of air-conditioning under heating mode, the air-conditioning includes
Compressor, expansion valve and outer blower, the control method include：
Obtain outdoor environment temperature；
According to the first fitting formula, the pass valve speed of the expansion valve is calculated；
According to the second fitting formula, the acceleration of the outer blower is calculated；
According to third fitting formula, the compressor is calculated in the raising frequency speed in raising frequency stage；
It controls the expansion valve and closes valve to target aperture according to the pass valve speed；
The expansion valve according to the pass valve speed close valve to the target aperture while, before or after, control
The outer blower is according to the acceleration raising speed to rotating speed of target；
When the expansion valve and/or the outer blower reach setting condition, the compressor is controlled according to the raising frequency
Speed carries out raising frequency；
Wherein, first fitting formula is according between the outdoor environment temperature and the pass valve speed of the expansion valve
Corresponding relationship determines that second fitting formula is according to pair between the outdoor environment temperature and the acceleration of the outer blower
It should be related to determination, the third fitting formula is according to pair between the outdoor environment temperature and the raising frequency speed of the compressor
It should be related to determination, and the raising frequency speed of the outdoor environment temperature and the compressor is inversely.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the control method further includes：
Judge whether the frequency of the compressor reaches stable working frequency；
When the frequency of the compressor reaches the stable working frequency, the compressor is made to stop raising frequency；
Wherein, the stable working frequency is determined according to the corresponding relationship of outdoor environment temperature and stable working frequency.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the step of " obtaining outdoor environment temperature "
After rapid, the control method further includes：
Judge whether the outdoor environment temperature is in preset temperature range；
When the outdoor environment temperature is in the temperature range, according to the third fitting formula, the pressure is calculated
Raising frequency speed of the contracting machine in the raising frequency stage.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the control method further includes：
When the outdoor environment temperature is less than the minimum value of the temperature range, according to the third fitting formula, press
The compressor is calculated in the raising frequency speed in raising frequency stage according to the minimum value of the temperature range；Or
When the outdoor environment temperature is greater than the maximum value of the temperature range, according to the third fitting formula, press
Raising frequency speed of the compressor described in maximum value calculation according to the temperature range in the raising frequency stage.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the target aperture is the expansion
The reference opening amount of valve, the rotating speed of target is the maximum (top) speed of the outer blower, " in the expansion valve and/or the outer blower
When reaching setting condition, control the compressor according to the raising frequency speed carry out raising frequency " the step of further comprise：
When the aperture of the expansion valve reaches the reference opening amount, and/or the outer blower reach it is described most
When big revolving speed, the compressor is controlled according to the raising frequency speed and carries out raising frequency.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, " control the expansion valve according to
The pass valve speed closes valve to target aperture " the step of after, the control method further includes：
The aperture of the expansion valve is adjusted according to the target exhaust temperature of the compressor.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, " the control outer blower according to
The acceleration raising speed is to rotating speed of target " the step of after, the control method further includes：
According to the corresponding pass between the frequency of outdoor environment temperature and/or the compressor and the revolving speed of the outer blower
System adjusts the revolving speed of the outer blower.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the raising frequency stage includes multiple liters
Frequency sub-stage, the third fitting formula accordingly include multiple third fittings subformula, " according to third fitting formula, are calculated
Raising frequency speed of the compressor in the raising frequency stage " further comprises：
It is fitted subformula according to each third, calculates separately the raising frequency speed of each raising frequency sub-stage of compressor.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, " compressor is controlled according to institute
State raising frequency speed carry out raising frequency " the step of further comprise：
The compressor is controlled successively according to the continuous raising frequency of raising frequency speed of each raising frequency sub-stage.
Under above-mentioned heating mode in the optimal technical scheme of the control method of air-conditioning, the outdoor environment temperature with it is described
The pass valve speed of expansion valve is inversely；And/or the acceleration of the outdoor environment temperature and the outer blower is at anti-
The relationship of ratio；And/or the raising frequency speed is the arbitrary value in 0.5Hz-30Hz.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, air-conditioning under heating mode
Control method includes：Obtain outdoor environment temperature；According to the first fitting formula, the pass valve speed of expansion valve is calculated；According to second
Fitting formula calculates the acceleration of outer blower；According to third fitting formula, compressor is calculated in the raising frequency speed in raising frequency stage；
It controls expansion valve and closes valve to target aperture according to valve speed is closed；In expansion valve according to the same of pass valve speed pass valve to target aperture
When, before or after, control outer blower according to acceleration raising speed to rotating speed of target；Preferably, valve to target is closed in expansion valve to open
When degree and outer blower raising speed to rotating speed of target, control compressor carries out raising frequency according to raising frequency speed；Wherein, the first fitting formula root
Determine that the second fitting formula is according to outdoor environment temperature according to the corresponding relationship of outdoor environment temperature and expansion valve closed between valve speed
It spends and is determined the corresponding relationship between the acceleration of outer blower, third fitting formula is according to the liter of outdoor environment temperature and compressor
Corresponding relationship between frequency speed determines, and the raising frequency speed of outdoor environment temperature and compressor is inversely.By pre-
First determine the first fitting formula, the second fitting formula and third fitting formula, it is then public according to the first fitting formula, the second fitting
Formula and third fitting formula calculate separately the pass valve speed of expansion valve, the acceleration of outer blower and compressor in the liter in raising frequency stage
Frequency speed, and then control expansion valve and close valve to target aperture, outer blower according to acceleration raising speed to target turn according to valve speed is closed
Speed, and compressor is controlled according to raising frequency speed while expansion valve closes valve to target aperture and outer blower raising speed to rotating speed of target
Raising frequency is carried out, the control method of air-conditioning can be improved the universality of air-conditioning under heating mode of the invention, improve the use of user
Experience.
Specifically, outdoor environment temperature respectively with expansion valve close valve speed, outer blower acceleration and compressor
Raising frequency speed inversely.When outdoor environment temperature is relatively high, the sendible temperature of human body is also higher, therefore from outdoor
The hope that user's control air-conditioning is quickly heated when entering the room is not strong, the hope that user's control air-conditioning is quickly heated
Prestige is not strong, at this time according to the pass of the first fitting formula, the second fitting formula and the calculated expansion valve of third fitting formula
The raising frequency of valve speed, the acceleration of outer blower and compressor is relatively lower speed, and expansion valve closes valve to mesh according to the pass valve speed
When marking aperture and outer blower according to acceleration raising speed to rotating speed of target, compressor carries out raising frequency, Neng Gou according to the raising frequency speed
While guaranteeing the heating effect of air-conditioning, the operation stability of expansion valve, outer blower and compressor is improved, reduces to run and make an uproar
Sound；When outdoor environment temperature is relatively low, the sendible temperature of human body is relatively low, thus it is from the outside into the room when user it is urgent
Air-conditioning is needed quickly to be heated, it is calculated according to the first fitting formula, the second fitting formula and third fitting formula at this time
The raising frequency speed for closing valve speed, the acceleration of outer blower and compressor of expansion valve is relatively high, and expansion valve is according to the pass valve speed
Fast quick-closing valve is spent to target aperture and when outer blower is according to the quick raising speed of acceleration to rotating speed of target, and compressor is according to raising frequency speed
Quick raising frequency is spent, so as to realize the quick heating of air-conditioning, highly shortened the time of heating, is brought for user good
Usage experience.Also, through inventor's repetition test, observation is analyzed and is compared, and carries out quickly using technical solution of the present invention
In the case where heating, the raising frequency speed of air-conditioning can be promoted into several times, even decades of times compared with the existing technology, realize air-conditioning
Jump frequency.In addition, the aperture of expansion valve can also be made by making expansion valve opening be decreased to target aperture before compressor start
It is matched in compressor start with compressor, expansion valve opening and compression caused by avoiding expansion valve from starting together with compressor
The bad situation of machine matching degree occurs, the heating effect after further increasing compressor start.By before compressor start
Outer blower raising speed is controlled to rotating speed of target, that is, driving air flowing in advance with high revolving speed is compressor and outdoor unit heat dissipation,
Make just to possess good radiating condition when compressor start, compressor dissipates caused by avoiding outer blower from starting together with compressor
The bad situation of thermal effect occurs, the heating effect after further increasing compressor start.
Detailed description of the invention
The control method of air-conditioning of the invention described with reference to the accompanying drawings.In attached drawing：
Fig. 1 is the flow diagram of the control method of air-conditioning under heating mode of the invention；
Fig. 2 is the pass valve speed curve diagram of expansion valve in the control method of air-conditioning under heating mode of the invention；
Fig. 3 is the acceleration plots of the control method China and foreign countries blower of air-conditioning under heating mode of the invention；
Fig. 4 is the raising frequency speed curve diagram of compressor in the control method of air-conditioning under heating mode of the invention.
Specific 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 technical principle of the invention, it is not intended that limit the scope of the invention.Although for example,
The third fitting formula of the raising frequency speed of compressor is in specific embodiment with vy=kTao+ b is exemplifies, but this fitting
The form of formula is non-unalterable, and those skilled in the art, which can according to need, makes adjustment to it, to adapt to specifically answer
Use occasion.For example, third fitting formula can also be vy=kTao+b(0<k<1) etc..
Firstly the need of explanation, usual air conditioner all includes indoor unit and outdoor unit, is provided with interior in indoor unit and changes
Hot device, inner blower etc. are provided with compressor, electric expansion valve (following or expansion valve), outer blower and outdoor and change in outdoor unit
Hot device etc..The control system for controlling air-conditioning work is further typically provided in indoor unit, as control system include control module,
Judgment module, computing module and acquisition module etc..Wherein, the physics of control module, judgment module, computing module and acquisition module
Form can be independent of each other, naturally it is also possible to the functional unit being integrated on a physical module.Such as the control of air-conditioning
System includes memory and processor, and the computer program that is stored in memory and can run on a processor, the meter
Calculation machine program can complete the function of above-mentioned control module, judgment module and acquisition module.The physics of the above air-conditioning is arranged
It is the conventional arrangement mode of air-conditioning in the prior art, the limitation to the control method invented should not be seen as.
Referring to Fig. 1, Fig. 1 is the flow diagram of the control method of air-conditioning under heating mode of the invention.
As shown in Figure 1, in order to solve, universality existing for the control method of existing air-conditioning is poor, user experience is bad is asked
Topic, the present invention provides a kind of control method of air-conditioning under heating mode, which is mainly included the following steps that：
S100, outdoor environment temperature is obtained；Such as after air-conditioning is switched on and selects heating mode, by being arranged in outdoor unit
The mode of temperature sensor obtains outdoor environment temperature；
S200, according to the first fitting formula, calculate the pass valve speed of electric expansion valve, such as the first fitting formula according to outdoor
The corresponding relationship of environment temperature and electric expansion valve closed between valve speed determines, and outdoor environment temperature and electric expansion valve
Pass valve speed inversely, i.e., outdoor environment temperature is lower, and the pass valve speed of electric expansion valve is faster, the control system of air-conditioning
System calculates the pass valve speed that electric expansion valve closes the valve stage according to the first fitting formula；
S300, according to the second fitting formula, the acceleration of outer blower is calculated, if the second fitting formula is according to outdoor environment temperature
It spends and is determined the corresponding relationship between the acceleration of outer blower, and the acceleration of outdoor environment temperature and outer blower is inversely proportional pass
System, i.e., outdoor environment temperature is lower, and the acceleration of outer blower is bigger, and the control system of air-conditioning calculates outer according to the second fitting formula
The acceleration of blower ramp-up stage；
S400, according to third fitting formula, raising frequency speed of the compressor in the raising frequency stage is calculated, such as third fitting formula root
It is determined according to the corresponding relationship between outdoor environment temperature and the raising frequency speed of compressor, and outdoor environment temperature and compressor
Inversely, i.e., outdoor environment temperature is lower for raising frequency speed, and the raising frequency speed of compressor is faster, the control system of air-conditioning according to
The raising frequency speed in third fitting formula calculating compressor raising frequency stage；
S500, control electric expansion valve close valve to target aperture according to valve speed is closed, it is preferable that target aperture is that electronics is swollen
The reference opening amount of swollen valve, after calculating the pass valve speed of electric expansion valve, the control system of air-conditioning controls electric expansion valve
Valve is closed to reference opening amount according to valve speed is closed；
S600, while electric expansion valve closes valve to target aperture, before or after, control outer blower according to acceleration
Raising speed is to rotating speed of target, it is preferable that and rotating speed of target is the maximum (top) speed of outer blower, while electric expansion valve starts to close valve,
The control system of air-conditioning controls outer blower according to acceleration raising speed to maximum (top) speed；
S700, when expansion valve and/or outer blower reach setting condition, control compressor risen according to raising frequency speed
Frequently, it is preferable that reach reference opening amount in the aperture of expansion valve, and when the revolving speed of outer blower reaches maximum (top) speed, the control of air-conditioning
System controls compressor according to the continuous raising frequency of raising frequency speed or continuous raising frequency stage by stage；
S800, judge whether the frequency of compressor reaches stable working frequency, as the control system of air-conditioning obtains pressure in real time
The current frequency of contracting machine, and current frequency is compared with stable working frequency；
S900, when the frequency of compressor reaches stable working frequency, make compressor stop raising frequency, such as reached in current frequency
When to stable working frequency, control system control compressor maintains stable working frequency and works on.
By predefining the first fitting formula, the second fitting formula and third fitting formula, then according to the first fitting
Formula, the second fitting formula and third fitting formula calculate separately electric expansion valve close valve speed, outer blower acceleration and
Raising frequency speed of the compressor in the raising frequency stage, and then control electric expansion valve and close valve to target aperture, exogenous wind according to valve speed is closed
Machine closes valve to target aperture in electric expansion valve and outer blower raising speed is to rotating speed of target according to acceleration raising speed to rotating speed of target
While control compressor according to raising frequency speed carry out raising frequency, the control method of air-conditioning can be improved under heating mode of the invention
The universality of air-conditioning improves the usage experience of user.In other words, the control method that the present invention solves existing air-conditioning exists
Universality is poor, problem that user experience is bad, improve the comfort of air-conditioning, improve user experience.
Referring to Fig. 2, Fig. 3 and Fig. 4, the principle that the present invention is further explained.Wherein, Fig. 2 is heating mould of the invention
Under formula in the control method of air-conditioning expansion valve pass valve speed curve diagram, Fig. 3 be heating mode of the invention under air-conditioning control
The acceleration plots of method China and foreign countries blower；Fig. 4 is the liter of compressor in the control method of air-conditioning under heating mode of the invention
Frequency speed curve diagram.
As shown in Fig. 2, in a kind of possible embodiment, outdoor environment temperature and expansion valve in the first fitting formula
Close valve speed inversely, it is preferable that target aperture is the reference opening amount of expansion valve.For example, the first of valve speed is closed
Fitting formula can be：
vp=k " Tao+ b ", wherein vpIndicate the pass valve speed (P/s, wherein P is the aperture unit " step " of expansion valve) of expansion valve,
TaoIt indicates outdoor environment temperature (DEG C), k " is proportionality coefficient, and b " is constant.The proportionality coefficient k " and constant b " of first fitting formula
It can determine as follows：Assuming that outdoor environment temperature TaoValue range be -5-20 DEG C, enable T as a result,ao=20 DEG C
When, close valve speed vpmin=30P/s, TaoAt=- 5 DEG C, valve speed v is closedpmax=80P/s, is acquired, k "=- 2, b "=70, therefore
vp=-2Tao+70.After calculating the first fitting formula, the first fitting formula is preset in the control system of air-conditioning, in this way
One, after user selects heating mode every time, control system just can determine expansion valve according to the outdoor environment temperature got
Pass valve speed, and according to the pass valve speed control expansion valve close valve work.
As shown in figure 3, in a kind of possible embodiment, outdoor environment temperature and outer blower in the second fitting formula
Acceleration is inversely, it is preferable that rotating speed of target is the maximum (top) speed of outer blower.For example, the second fitting of acceleration
Formula can be：aw=k ' Tao+ b ', wherein awIndicate the acceleration (r/s of outer blower2), TaoIndicate outdoor environment temperature
(DEG C), k ' are proportionality coefficient, and b ' is constant.The proportionality coefficient k ' and constant b ' of second fitting formula can as follows really
It is fixed：Assuming that outdoor environment temperature TaoValue range be -5-20 DEG C, enable T as a result,aoAt=20 DEG C, acceleration awmin=10r/
s2, TaoAt=- 5 DEG C, acceleration awmax=30r/s2, acquire, k '=- 0.8, b '=26, therefore aw=-0.8Tao+26.It is calculating
Out after the second fitting formula, the second fitting formula is preset in the control system of air-conditioning, so, when user selects every time
After heating mode, control system just can determine the acceleration of outer blower according to the outdoor environment temperature got, and add according to this
The outer blower raising speed work of speed control.
As shown in figure 4, in a kind of possible embodiment, only one raising frequency stage of compressor, and the raising frequency rank
The raising frequency speed of outdoor environment temperature and compressor is inversely in the third fitting formula of section, it is preferable that raising frequency speed is
Arbitrary value in 0.5Hz-30Hz.For example, the third fitting formula of raising frequency speed can be：vy=kTao+ b, wherein vy
Indicate the raising frequency speed (Hz/s) of compressor, TaoIt indicates outdoor environment temperature (DEG C), k is proportionality coefficient, and b is constant.Third is quasi-
The proportionality coefficient k and constant b for closing formula can be determined as follows：Assuming that outdoor environment temperature TaoValue range be-
5-20 DEG C, T is enabled as a result,aoAt=20 DEG C, raising frequency speed vymin=0.5Hz/s, TaoAt=- 5 DEG C, raising frequency speed vymax=30Hz/
S is acquired, k=-1.18, b=24.1, therefore vy=-1.18Tao+24.1.After calculating third fitting formula, third is intended
It closes formula to be preset in the control system of air-conditioning, so, after user selects heating mode every time, control system just can root
The raising frequency speed of compressor is determined according to the outdoor environment temperature got, and according to the raising frequency speed control compressor raising frequency work
Make.
It further, can also be by outdoor environment temperature TaoValue range be divided into one or more temperature ranges,
Outdoor environment temperature TaoWhen falling into one of temperature range, corresponding raising frequency speed is calculated using third fitting formula.For example,
By outdoor environment temperature TaoValue range be divided into three sections (- ∞, -5), [- 5,20] and (20 ,+∞), getting
Outdoor environment temperature TaoWhen in [- 5,20] this section, using third fitting formula vy=kTao+ b calculates raising frequency speed,
As outdoor environment temperature TaoWhen in the section (- ∞, -5) or (20 ,+∞), then outdoor environment temperature is equal to -5 and 20 respectively
Raising frequency speed of the raising frequency speed as compressor at this temperature when (i.e. the minimum value and maximum value of temperature range [- 5,20]).
In this way, can simplify control program, prevent the raising frequency speed of compressor excessive or the too small damage caused by compressor.
Referring to table 1, in a kind of possible embodiment, stable working frequency can according to outdoor environment temperature with
The corresponding relationship of stable working frequency determines.
The 1 stable working frequency table of comparisons of table
Wherein, TaoRepresent outdoor environment temperature, fwRepresent the stable working frequency of compressor, feRepresent the specified of compressor
Working frequency.
In a kind of possible embodiment, preferably to improve the experience that user uses air-conditioning, heating effect is promoted, is mentioned
The step of job stability and service life of high compressor, control electric expansion valve is according to valve speed pass valve to target aperture is closed
Later, control method further includes：
The aperture of electric expansion valve is adjusted according to the target exhaust temperature of compressor.
Referring to table 2, in a kind of possible embodiment, preferably to improve the experience that user uses air-conditioning, mention
Heating effect is risen, the job stability and service life of compressor are improved, outer blower is controlled and turns according to acceleration raising speed to target
After the step of speed, control method further includes：
According to the corresponding relationship between outdoor environment temperature and the revolving speed of outer blower, the revolving speed of outer blower is adjusted.
The outer rotation speed of fan control table (1) of table 2
| Tao(℃) | ≤10 | 10-16 | ≥16 |
| rw(r/min) | 1200 | 800 | 400 |
Wherein, TaoRepresent outdoor environment temperature, rwRepresent the revolving speed of outer blower.
By above-mentioned control mode, the advantages of control method of air-conditioning of the invention, is：It is quasi- by predefining first
Formula, the second fitting formula and third fitting formula are closed, expansion valve is then calculated according to the first fitting formula and is closing the valve stage
Valve speed is closed, outer blower is calculated in the acceleration of ramp-up stage according to the second fitting formula, is calculated and is pressed according to third fitting formula
Raising frequency speed of the contracting machine in the raising frequency stage, and then control expansion valve and close valve to reference opening amount according to closing valve speed, outer blower according to
Acceleration raising speed is controlled to maximum (top) speed, and when electric expansion valve closes valve to reference opening amount and outer blower raising speed to maximum (top) speed
Compressor carries out raising frequency according to raising frequency speed, and the control method of air-conditioning can be improved the pervasive of air-conditioning under heating mode of the invention
Property, improve the usage experience of user.
Specifically, outdoor environment temperature respectively with expansion valve close valve speed, outer blower acceleration and compressor
Raising frequency speed inversely.When outdoor environment temperature is relatively high, the sendible temperature of human body is also higher, therefore from outdoor
The hope that user's control air-conditioning is quickly heated when entering the room is not strong, is intended at this time according to the first fitting formula, second
Close pass valve speed, the acceleration of outer blower and the raising frequency speed of compressor of formula and the calculated expansion valve of third fitting formula
Relatively low, valve is to reference opening amount and outer blower is according to acceleration raising speed to maximum (top) speed according to pass valve speed pass for expansion valve
When, compressor carries out raising frequency according to the raising frequency speed, can improve expansion valve, outer while guaranteeing the heating effect of air-conditioning
The operation stability of blower and compressor reduces operation noise；When outdoor environment temperature is relatively low, the body-sensing temperature of human body
Spend it is relatively low, therefore it is from the outside into the room when user there is an urgent need to air-conditionings quickly to be heated, it is public according to the first fitting at this time
The acceleration and compressor for closing valve speed, outer blower of formula, the second fitting formula and the calculated expansion valve of third fitting formula
Raising frequency speed it is relatively high, expansion valve according to the fast quick-closing valve of pass valve speed to reference opening amount and outer blower it is fast according to acceleration
When fast raising speed to maximum (top) speed, compressor is according to the quick raising frequency of raising frequency speed, so as to realize the quick heating of air-conditioning, pole
The earth shortens the time of heating, brings good usage experience for user.
By making expansion valve opening be decreased to reference opening amount before compressor start, the aperture of expansion valve can also be made to exist
It is matched when compressor start with compressor, expansion valve opening and compressor caused by avoiding expansion valve from starting together with compressor
The bad situation of matching degree occurs, the heating effect after further increasing compressor start.By being controlled before compressor start
Outer blower raising speed is made to rotating speed of target, that is, driving air flowing in advance with high revolving speed is compressor and outdoor unit heat dissipation, is made
Just possess good radiating condition when compressor start, compressor radiates caused by avoiding outer blower from starting together with compressor
Ineffective situation occurs, the heating effect after further increasing compressor start.It is determined and is compressed by outdoor environment temperature
The stable working frequency of machine, by electric expansion valve close valve to reference opening amount after according to the target exhaust temperature of compressor determine electricity
The aperture of sub- expansion valve and by after outer blower raising speed to maximum (top) speed according to outdoor environment temperature and compressor operating frequency
The revolving speed of outer blower is adjusted, control method of the invention can also provide the fortune to match for compressor in compressor operating
Row environment further increases the working efficiency and job stability of compressor, improves the operational effect of air-conditioning.
Further, through inventor's repetition test, observation is analyzed and is compared and obtains, passes through the oil spitting amount to compressor, electricity
The aperture of sub- expansion valve, the revolving speed of outer blower and oil-liquid separator etc. are accurately controlled, and are guaranteeing that compressor is stable
Under the premise of, the raising frequency speed of compressor can be controlled steadily in 0.5-30Hz/s, and especially maximum raising frequency speed can reach
To surprising 30Hz/s.And those skilled in the art understand that, the raising frequency speed of compressor is mostly in the prior art
0.5-1Hz/s, few compressors can reach raising frequency speed of the invention when keeping steady operation.Thus, it is of the invention
The raising frequency speed of air-conditioning can be promoted several times, even decades of times compared with the existing technology when quickly being heated by air-conditioning, from
And realize the jump frequency of air-conditioning, significantly improve the usage experience of user.
Certainly, above embodiment is used only for the principle illustrated the present invention, it is not intended that of the invention in limiting
Protection scope, under conditions of without departing from the principle of the invention, those skilled in the art can also do arbitrary form to above-mentioned parameter
Adjustment, as long as technical solution adjusted can improve the condition of raising frequency speed under the premise of guaranteeing compressor normal oil return
?.For example, the parameter of the first fitting formula, the form of the second fitting formula and third fitting formula and air-conditioning can be based on not
Same application scenarios are adjusted, if third fitting formula can also be vy=kTao+b(0<k<1) etc..For another example, temperature range
Number and endpoint value are not unalterable, and those skilled in the art can be adjusted based on practical application scene, such as incite somebody to action [- 5,
20] section is further subdivided into multiple sections, and each section corresponds to different fitting formulas etc..For another example, target aperture may be used also
Think the opening value near other apertures or reference opening amount of electric expansion valve, is accordingly less than reference opening amount in target aperture
When, compressor can start raising frequency after electric expansion valve reaches target aperture, when target opening value is greater than reference opening amount,
Compressor can start raising frequency before electric expansion valve reaches target aperture.For another example, rotating speed of target can also be outer blower
Opening value near other revolving speeds or maximum (top) speed, accordingly when rotating speed of target is less than maximum (top) speed, compressor can be outside
Blower starts raising frequency after reaching rotating speed of target, and when rotating speed of target value is greater than maximum (top) speed, compressor can be reached in outer blower
Start raising frequency before to rotating speed of target.For another example, electric expansion valve reach after reference opening amount can also according to outdoor environment temperature and/
Or compressor frequency and electric expansion valve aperture between corresponding relationship be adjusted, the revolving speed of outer blower can also basis
Corresponding relationship between the revolving speed of the frequency and outer blower of outdoor environment temperature and compressor is adjusted (such as the following table 3).
The outer rotation speed of fan control table (2) of table 3
Wherein, TaoOutdoor environment temperature is represented, f represents the working frequency of compressor, rwRepresent the revolving speed of outer blower.
In addition, the raising frequency stage of compressor can also further be segmented further to promote the heating effect of air-conditioning
For multiple raising frequency sub-stages, accordingly, each raising frequency sub-stage includes a third fitting subformula, and third is fitted subformula
Between can be coefficient difference, be also possible to the difference of formula.It is risen for example, the raising frequency stage of compressor may include three
Frequency sub-stage, each raising frequency sub-stage corresponding third fitting subformula is respectively vy1=k1Tao+b1、vy2=k2Tao+b2、vy3=
k3Tao+b3.After user selects heating mode, control system is calculated according to each third fitting subformula respectively accordingly to be compressed
Then the raising frequency speed of each raising frequency sub-stage of machine controls compressor and successively rises according to the raising frequency speed of each raising frequency sub-stage
Frequently.The relationship for such as calculating the raising frequency speed of three raising frequency sub-stages is vy1>vy2>vy3(certainly, which may be other
Such as vy1<vy2<vy3Deng), then controlling compressor raising frequency in such a way that raising frequency speed is gradually reduced, realize that air-conditioning quickly heats
While, guarantee that compressor oil return is normal, is gradually reduced process noise, prolongs the service life.
Below with reference to Fig. 1 to Fig. 4, brief Jie is done to a kind of workflow of air-conditioning using control method of the invention
It continues.The course of work of air-conditioning can be：
Air-conditioning booting heat → detect outdoor environment temperature be -5 DEG C → expansion valve is calculated according to first fitting formula
Close valve speed vp, the acceleration a of outer blower is calculated according to the second fitting formulaw, the liter of compressor is calculated according to third fitting formula
Frequency speed vy, while stable working frequency f is determined according to table 1w→ electric expansion valve is according to pass valve speed vpQuick-closing valve is same fastly
When, outer blower is according to acceleration awQuick raising speed → electric expansion valve closes valve to reference opening amount and outer blower raising speed is to maximum (top) speed
When, compressor is according to raising frequency speed vyCarry out quick raising frequency → compressor reaches stable working frequency f after a period of timewAfter tie up
It holds in the frequency run, the aperture B of electric expansion valve is adjusted according to the target exhaust temperature of compressor, the revolving speed of outer blower
rwIt is adjusted according to table 3.
So far, it has been combined preferred embodiment shown in the drawings and describes technical solution of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific embodiments.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make equivalent change or replacement to the relevant technologies feature, these
Technical solution after change or replacement will fall within the scope of protection of the present invention.
Claims (10)
1. the control method of air-conditioning under a kind of heating mode, the air-conditioning includes that compressor, expansion valve and outer blower, feature exist
In the control method includes：
Obtain outdoor environment temperature；
According to the first fitting formula, the pass valve speed of the expansion valve is calculated；
According to the second fitting formula, the acceleration of the outer blower is calculated；
According to third fitting formula, the compressor is calculated in the raising frequency speed in raising frequency stage；
It controls the expansion valve and closes valve to target aperture according to the pass valve speed；
While the expansion valve closes valve to the target aperture according to the pass valve speed, before or after, described in control
Outer blower is according to the acceleration raising speed to rotating speed of target；
When the expansion valve and/or the outer blower reach setting condition, the compressor is controlled according to the raising frequency speed
Carry out raising frequency；
Wherein, first fitting formula is corresponding between valve speed according to the outdoor environment temperature and closing for the expansion valve
Relationship determines that second fitting formula is according to the corresponding pass between the outdoor environment temperature and the acceleration of the outer blower
System determines that the third fitting formula is according to the corresponding pass between the outdoor environment temperature and the raising frequency speed of the compressor
System determines, and the raising frequency speed of the outdoor environment temperature and the compressor is inversely.
2. the control method of air-conditioning under heating mode according to claim 1, which is characterized in that the control method is also wrapped
It includes：
Judge whether the frequency of the compressor reaches stable working frequency；
When the frequency of the compressor reaches the stable working frequency, the compressor is made to stop raising frequency；
Wherein, the stable working frequency is determined according to the corresponding relationship of outdoor environment temperature and stable working frequency.
3. the control method of air-conditioning under heating mode according to claim 1, which is characterized in that " obtain outdoor environment temperature
After the step of degree ", the control method further includes：
Judge whether the outdoor environment temperature is in preset temperature range；
When the outdoor environment temperature is in the temperature range, according to the third fitting formula, the compressor is calculated
In the raising frequency speed in raising frequency stage.
4. the control method of air-conditioning under heating mode according to claim 3, which is characterized in that the control method is also wrapped
It includes：
When the outdoor environment temperature is less than the minimum value of the temperature range, according to the third fitting formula, according to institute
The minimum value for stating temperature range calculates the compressor in the raising frequency speed in raising frequency stage；Or
When the outdoor environment temperature is greater than the maximum value of the temperature range, according to the third fitting formula, according to institute
Compressor described in the maximum value calculation of temperature range is stated in the raising frequency speed in raising frequency stage.
5. the control method of air-conditioning under heating mode according to claim 1, which is characterized in that the target aperture is institute
State the reference opening amount of expansion valve, the rotating speed of target is the maximum (top) speed of the outer blower, " in the expansion valve and/or described
When outer blower reaches setting condition, control the compressor according to the raising frequency speed carry out raising frequency " the step of further comprise：
Reach described maximum turn when the aperture of the expansion valve reaches the reference opening amount, and/or in the outer blower
When fast, the compressor is controlled according to the raising frequency speed and carries out raising frequency.
6. the control method of air-conditioning under heating mode according to claim 1, which is characterized in that " controlling the expansion
Valve closes valve to target aperture according to the pass valve speed " the step of after, the control method further includes：
The aperture of the expansion valve is adjusted according to the target exhaust temperature of the compressor.
7. the control method of air-conditioning under heating mode according to claim 1, which is characterized in that " controlling the exogenous wind
Machine is according to the acceleration raising speed to rotating speed of target " the step of after, the control method further includes：
According to the corresponding relationship between the revolving speed of the frequency and the outer blower of outdoor environment temperature and/or the compressor, adjust
The revolving speed of the whole outer blower.
8. the control method of air-conditioning under heating mode according to any one of claim 1 to 7, which is characterized in that described
The raising frequency stage includes multiple raising frequency sub-stages, and the third fitting formula accordingly includes that multiple thirds are fitted subformula, " according to
Third fitting formula calculates the compressor in the raising frequency speed in raising frequency stage " further comprise：
It is fitted subformula according to each third, calculates separately the raising frequency speed of each raising frequency sub-stage of compressor.
9. the control method of air-conditioning under heating mode according to claim 8, which is characterized in that " control the compressor
According to the raising frequency speed carry out raising frequency " the step of further comprise：
The compressor is controlled successively according to the continuous raising frequency of raising frequency speed of each raising frequency sub-stage.
10. the control method of air-conditioning under heating mode according to claim 1, which is characterized in that the outdoor environment temperature
The pass valve speed of degree and the expansion valve is inversely；And/or the outdoor environment temperature adds with the outer blower
Speed is inversely；And/or the raising frequency speed is the arbitrary value in 0.5Hz-30Hz.
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Application publication date: 20181123 |