CN107514743A - A kind of air-conditioner control method, control device and air conditioner - Google Patents
A kind of air-conditioner control method, control device and air conditioner Download PDFInfo
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- CN107514743A CN107514743A CN201710623136.1A CN201710623136A CN107514743A CN 107514743 A CN107514743 A CN 107514743A CN 201710623136 A CN201710623136 A CN 201710623136A CN 107514743 A CN107514743 A CN 107514743A
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000003507 refrigerant Substances 0.000 claims description 12
- 238000013461 design Methods 0.000 claims description 6
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- 238000001514 detection method Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 7
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000011217 control strategy Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000001143 conditioned effect Effects 0.000 description 2
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- 238000007791 dehumidification Methods 0.000 description 1
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- 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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Abstract
The present invention provides a kind of air-conditioner control method, and air conditioner comprises at least the first blower fan and the second blower fan, and the control method comprises the following steps：User sets first blower fan and operated according to the first wind speed setting, sets second blower fan and is operated according to the second wind speed setting；If first wind speed setting and the second wind speed setting are unequal, and first wind speed setting and the second wind speed setting are not equal to zero, and air conditioner enters differential control pattern；The first setting running frequency according to corresponding to being called first wind speed setting, the second setting running frequency according to corresponding to being called second wind speed setting, calculates differential running frequency and controls compressor to be run according to the differential running frequency；Wherein, the differential running frequency is equal to the average of the described first setting running frequency and the second setting running frequency.Also disclose a kind of air conditioner controlling device and air conditioner.The present invention has the advantages of air-conditioning effect is good, and control mode is flexible, and comfortableness is high.
Description
Technical field
The present invention relates to air-conditioning technique field, more particularly to a kind of air-conditioner control method, control device and sky
Adjust device.
Background technology
During in order to overcome prior art air conditioner to run, air-supply passage is complicated, causes asking for a large amount of noise and air quantity decay
Topic, Chinese patent application（Application number 201410073610.4）A kind of air conditioner is disclosed, is set on an independent housing
One air inlet, the air channel structure of two air outlets, the wind-tunnel of air inducing along the longitudinal direction is formed, drives air to flow from back to front
It is dynamic, a blower fan is set respectively in two air channel structures.
This air conditioner provides more soft air-out, has more preferable comfort level, in the running of air conditioner,
Two blower fan synchronous operations of control.The problem of this is present is, if the refrigerating capacity of user's request is smaller, can only control two wind
Machine is run according to low wind conditions simultaneously, while controls compressor low-frequency operation, although this control mode energy consumption declines, system
Cold effect is also deteriorated simultaneously, the situation for lifting frequency repeatedly easily occurs, causes indoor temperature fluctuation larger.Also it is continuous in the prior art
Such air conditioner is further optimized and improved.Such as Chinese patent application（Application number 201510485974.8）Disclosed in
Technical scheme, referring to its specification, " the first blower fan and the second blower fan are determined according to the double through-flow air conditioner institute's required airflow that exchanges heat
Wind speed ", in this control model, the first blower fan and the second blower fan can be operated under different wind speed, but wind speed can not be by
User is actively controlled, it is necessary to the running frequency of first collect and process machine, and required wind is retrodicted according to compressor operating frequency
Amount, in the gear of the operation according to Wind Coverage Calculation blower fan.There is following drawback in this control mode, first, user cannot root
Factually the impression on border actively adjusts blower fan wind speed, secondly, is had according to the actual motion frequency feedback of compressor regulation wind speed bright
Aobvious hysteresis quality, influences Consumer's Experience；3rd, compressor operating frequency is not as the operation of blower fan is adjusted.Therefore, rear
During the wind speed regulation put, there is that many compressor operating frequencies are higher, and fan operation speed is relatively low, or compressor fortune
Line frequency is relatively low, the higher unmatched situation of fan operation speed, and the effect of this meeting significant impact air-conditioning, it is unnecessary to cause
Energy waste, and the frosting problem of heat exchanger.
In summary, it is single to there is control mode in double through-flow air conditioner of the prior art, can not meet user individual
The problem of demand.
The content of the invention
The present invention provides a kind of air-conditioner control method, control mode be present to solve double through-flow air conditioner in the prior art
It is single, the problem of users ' individualized requirement can not be met.
A kind of air-conditioner control method, air conditioner comprise at least the first blower fan and the second blower fan, and the control method includes
Following steps：
User sets first blower fan and operated according to the first wind speed setting, sets second blower fan according to the second wind speed setting
Operating；If first wind speed setting and the second wind speed setting are unequal, and first wind speed setting and the second wind speed setting
Not equal to zero, air conditioner enters differential control pattern；
The first setting running frequency according to corresponding to being called first wind speed setting, according to second wind speed setting calling pair
The the second setting running frequency answered, calculates differential running frequency and controls compressor to be run according to the differential running frequency；Its
In, the differential running frequency is equal to the average of the described first setting running frequency and the second setting running frequency.
Further, after air conditioner enters differential control pattern, judge whether the temperature difference of design temperature and indoor temperature belongs to
In first threshold section, if the temperature difference belongs to first threshold section, calculate the differential running frequency and control compression
Machine is run according to the differential running frequency.
Further, after air conditioner enters differential control pattern, if whether the temperature difference of design temperature and indoor temperature does not belong to
In first threshold section and belong to Second Threshold section, then compressor target frequency is calculated according to pid algorithm and control compressor
Run to the target frequency；First threshold section and Second Threshold section are continuous, and the lower limit threshold in the first threshold section
Upper limit threshold of the value equal to Second Threshold section.
Further, to be provided with the first electronics on the refrigerant line of the first heat exchanger of corresponding first blower fan swollen
Swollen valve, correspondingly it is provided with the second electric expansion valve on the refrigerant line of the second heat exchanger of second blower fan；Air conditioner
Into after differential control pattern, if the temperature difference belongs to first threshold section, control compressor is run according to the differential
Frequency is run, and the aperture of first electric expansion valve reduces, second electronic expansion with the reduction of the first blower fan wind speed
The aperture of valve reduces with the reduction of the second blower fan wind speed；First electric expansion valve and the second electric expansion valve keep valve opening
State.
Further, the control method is further comprising the steps of：
If the first wind speed setting and the second wind speed setting is equal and first wind speed setting and the second wind speed setting are highest
Wind speed, air conditioner enter at the uniform velocity control model；
It is stored with controller of air conditioner under at the uniform velocity control model, the corresponding pass of outdoor environment temperature and compressor operating frequency
System；
Controller of air conditioner samples real-time outdoor environment temperature, and compression is set according to corresponding to calling real-time outdoor environment temperature
Machine running frequency, control compressor is according to the setting compressor operating frequency operation；First electric expansion valve and described
Second electric expansion valve keeps full-gear.
Further, under the at the uniform velocity control model, the outdoor environment temperature is divided into multiple sections, each section
A corresponding compressor operating frequency setting value, when the real-time outdoor environment temperature matches any one section, execution pair
The compressor operating frequency setting value answered.
Further, the first coil temperature sensor, the second heat exchanger are provided with the first heat exchanger
On be provided with the second coil temperature sensor；The first coil temperature of the first coil temperature sensor detection is sampled, and
Second coil temperature of the second coil temperature sensor detection, first coil pipe is sampled according to the operational mode of air conditioner
The lower value or high value of temperature and the second coil temperature are as early warning coil temperature, when the early warning coil temperature exceedes setting
During threshold value, output alarm signal.
Further, first coil temperature sensor and the second coil temperature sensor are separately positioned on described first
The middle part of heat exchanger and the minimum branch pipe all the way of second heat exchanger air outlet temperature.
Air-conditioner control method disclosed in this invention, starting characteristic and the change of refrigeration system in air conditioner can make it that
Dynamic load characteristic is greatly improved, while can adjust blower fan and the control strategy of compressor formation optimization, and quickly response is used
Family is further ensured that the service efficiency of heat exchanger is high for the flexible demands of air-conditioned room cold, stable, energy consumption it is low and
Temperature control precision is good.
A kind of air conditioner controlling device is also disclosed simultaneously, air conditioner includes the first blower fan and the second blower fan；The control
Device includes：
Differential identifying unit, the differential identifying unit are used to judge the wind speed of first blower fan and the wind of second blower fan
Whether speed meets the control condition of differential control pattern；The control condition of the differential control pattern is the first setting wind
Speed and the second wind speed setting are unequal, and first wind speed setting and the second wind speed setting are not equal to zero；
With compressor frequency determining unit, into after differential control pattern, the compressor frequency determining unit is used for according to institute
The first setting running frequency corresponding to the first wind speed setting calling is stated, second sets according to corresponding to being called second wind speed setting
Determine running frequency, calculate differential running frequency and control compressor to be run according to the differential running frequency；Wherein, the differential
Running frequency is equal to the average of the first setting running frequency and the second setting running frequency.
Air conditioner controlling device disclosed in this invention has the characteristics of control strategy is flexible, fast response time.
A kind of air conditioner is also disclosed simultaneously, using following air-conditioner control method：
Air conditioner comprises at least the first blower fan and the second blower fan, and the control method comprises the following steps：
User sets first blower fan and operated according to the first wind speed setting, sets second blower fan according to the second wind speed setting
Operating；If first wind speed setting and the second wind speed setting are unequal, and first wind speed setting and the second wind speed setting
Not equal to zero, air conditioner enters differential control pattern；
The first setting running frequency according to corresponding to being called first wind speed setting, according to second wind speed setting calling pair
The the second setting running frequency answered, calculates differential running frequency and controls compressor to be run according to the differential running frequency；Its
In, the differential running frequency is equal to the average of the described first setting running frequency and the second setting running frequency.
Air conditioner provided by the present invention has the advantages of air-conditioning effect is good, and control mode is flexible, and comfortableness is high.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs
Some bright embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the first embodiment of air-conditioner control method proposed by the invention；
Fig. 2 is the flow chart of second of embodiment of air-conditioner control method proposed by the invention；
Fig. 3 is the flow chart of the third embodiment of air-conditioner control method proposed by the invention；
Fig. 4 is a kind of structural schematic block diagram of embodiment of air conditioner controlling device proposed by the invention；
Fig. 5 is the structural representation of air conditioner disclosed in this invention；
Fig. 6 is the internal structure schematic diagram of the air conditioner shown in Fig. 5.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Involved air conditioner in the present invention, including indoor set and outdoor unit, indoor set and outdoor unit pass through online Guan Lian
Connect the circulation for realizing refrigerant, indoor set and outdoor unit and power supply and communication are realized by online line.It is preferably provided with outdoor side
Outdoor environment temperature sensor（Not shown in figure）.As shown in Figure 5 and Figure 6, air conditioner room unit preferably includes base 11 and position
In two air conditioner main bodies on base 11.Air inlet and air outlet, each air conditioner main body are offered in each air conditioner main body
In be provided with a blower fan, i.e. the first blower fan 2 and the second blower fan 5, the first blower fan 2 and the second blower fan 5 pass through independent circuit
Control, is independent of each other.First blower fan 2 and the second blower fan 5 are preferably cross flow fan, and cross flow fan is used to guide to enter corresponding to air
Air port flows to air outlet.Corresponding first blower fan 2 is provided with first heat exchanger 1, corresponding second blower fan in the first air conditioner main body 8
5 are provided with second heat exchanger 4 in the second air conditioner main body 9.Between adjacent the first air conditioner main body 8 and the second air conditioner main body 9
Form insertion air channel 10.The air outlet of first air conditioner main body 8 and the second air conditioner main body 9 is located in insertion air channel 10.First blower fan 2
And/or second blower fan 5 when operating, by the first heat exchanger 1 in the first air conditioner main body 8 and the second air conditioner main body 9 and/or the
Air flows to insertion from the air outlet of the first air conditioner main body 8 and/or the air outlet of the second air conditioner main body 9 after two heat exchangers 4
In air channel 10, the air outlet of the air outlet of the first air conditioner main body 8 and the second air conditioner main body 9 is formed in the presence of cross flow fan to be born
Pressure, the air around air conditioner main body is introduced in insertion air channel 10, and mixed flow is realized in insertion air channel 10, to improve air-supply
Comfortableness.In presently disclosed air conditioner, because the first blower fan 2 and the second blower fan 5 are controlled by independent circuit, institute
With, independent button is provided with the control device of air conditioner, can opening with independent control the first blower fan 2 and the second blower fan 5
Stop and the wind speed of the first blower fan 2 and the second blower fan 5, while can be empty with the air outlet of the first air conditioner main body of independent control 8 and second
Adjust the state of the air outlet wind deflector of body 9.Realize the subregion air-supply of the first air conditioner main body 8, the second air conditioner main body 9.Control dress
Put the one of which of including but not limited to IR remote controller, Air-Conditioning Control Panel, smart mobile phone, tablet personal computer, wearable device
It is or a variety of.
Flow chart shown in Figure 1 for the first specific embodiment of air-conditioner control method disclosed in this invention.Such as
Shown in Fig. 1, the air-conditioner control method disclosed in the present embodiment comprises the following steps：
S101, air conditioner are in the operation phase.User can set the first blower fan and second of independent operation by control device
The wind speed of blower fan.User sets first blower fan and operated according to the first wind speed setting, sets second blower fan according to second
Wind speed setting operates.User can arbitrarily set the first wind speed setting and the second wind speed setting by remote control.Preferably, first
Wind speed setting and the second wind speed setting are divided into five gears, i.e. strength, Gao Feng, apoplexy, low wind and Jing Yin.First blower fan and second
Blower fan can be run according to different gears respectively according to the demand of user.
S102, controller of air conditioner, preferably air conditioner room unit control chip, the first of receiving control device feedback sets
Determine wind speed and the second wind speed setting, and compare the first wind speed setting and the second wind speed setting.If the first wind speed setting and second is set
It is unequal to determine wind speed, and first wind speed setting and the second wind speed setting are not equal to zero, air conditioner enters differential air supply pattern.
S103, into after differential air supply pattern, i.e., according to different the first wind speed setting and the second wind speed setting to air-conditioning
The refrigerating capacity of device is synchronously adjusted.The corresponding compressor of each corresponding wind speed setting is stored with controller of air conditioner
Running frequency.Preferably, corresponding each grade of wind speed setting has a corresponding compressor operating frequency, or corresponds to each
Wind speed setting has a corresponding compressor operating frequency.Controller of air conditioner stores according to the first wind speed setting accordingly
First setting running frequency corresponding to being called in unit, while called in corresponding memory cell according to the second wind speed setting pair
The the second setting running frequency answered.
S104, controller of air conditioner calculate differential running frequency and control compressor to be transported according to the differential running frequency
OK, wherein the differential running frequency is equal to the average of the first setting running frequency and the second setting running frequency.It is appreciated that
, for air conditioner, another optional embodiment is provided with more air conditioner main bodies, and in each air-conditioning
A wind speed setting that each blower fan with the blower fan of independent operating, can be corresponded to is respectively provided with body it is provided with and corresponds
Compressor operating frequency.For this embodiment, the differential running frequency is equal to multiple setting running frequencies
Average.
For example, control device can be IR remote controller, and two independent buttons are set on IR remote controller, point
The wind speed of the first blower fan and the second blower fan Yong Yu not controlled.By taking the direction in face of air-conditioning as an example, as shown in Figure 5 and Figure 6, left side
For the first air conditioner main body, right side is formed in the first air conditioner main body and the second air conditioner main body for the second air conditioner main body, insertion air channel
Between.If in some situation, the user that left side is located at relative to air conditioner feels colder, is located at relative to air conditioner
The user on right side feels comfortable or hotter.The first blower fan can be set by IR remote controller to transport according to " low wind " gear
Turn, the second blower fan of setting operates according to " high wind " gear, then controller of air conditioner triggers into differential control pattern automatically.Air-conditioning
Air speed value corresponding to setting " low wind " and " high wind " of the device controller according to sampling（High wind wind speed is about in 1000-1150r/m；
Low wind wind speed is about in 600-750r/m）, respectively call memory cell in store to should air speed value setting running frequency.
When setting " low wind " or corresponding air speed value, the first setting running frequency can be selected in 30-45Hz number range
Take, when setting " high wind " or corresponding air speed value, the second setting running frequency can be carried out in 63-80Hz number range
Choose.It is preferred that wind-speed gear, wind speed and compressor operating frequency are stored in the form of one-to-one mode is according to tables of data
In the memory cell of controller of air conditioner.The average of the first setting running frequency and the second setting running frequency is calculated, and with the
The average of one setting running frequency and the second setting running frequency is run as differential running frequency, control compressor according to differential
Frequency is run.If the ability of air conditioner in itself is 3, under this control method, the ability of 1.5 can be played, is met
The actual demand of user.
It is illustrated in figure 2 second of specific embodiment of control method provided by the present invention, it is to be understood that use
Actual demand of the family for air-conditioning changes with the change of air conditioner load, and air conditioner kind of refrigeration cycle has large time delay and non-thread
The characteristics of property.So user's actual need, air conditioner load are combined by present embodiment preferably under differential control pattern,
Form optimal control strategy.
The first two steps S201 and S202 of the present embodiment are consistent with first embodiment, will not be repeated here.
Control strategy includes multiple stages.Air conditioner enters after differential pattern, first determines whether design temperature and Indoor Temperature
Whether the temperature difference of degree belongs to first threshold section（Step S203 as shown in Figure 2）.If the temperature difference belongs to first threshold section,
Then call the first setting running frequency and the second setting running frequency（Step S2041 as shown in Figure 2）, calculate differential running frequency
And compressor is controlled to be run according to differential running frequency（Step S205 as shown in Figure 2）.First threshold section is preferably provided with being more than 3
℃.Under this temperature difference and wind friction velocity, it is smaller to represent the cold of user's needs, and concurrently sets between temperature and indoor temperature
Still certain deviation be present, and the temperature difference still falls within a larger scope, therefore, in this stage, compressor preferably according to
Differential running frequency is run, and this aspect can keep user's body by the amplitude of frequency reducing and speed control in certain scope
Test well, on the other hand, response speed, the deviation between successive elimination indoor temperature and design temperature can be improved.Second
In the stage, after a period of time is run according to differential running frequency, the temperature difference deviates first threshold section.If the temperature difference is not belonging to first
Threshold interval and belong to Second Threshold section, then compressor target frequency is calculated according to pid algorithm and control compressor operating extremely
Target frequency（Step S2042 as shown in Figure 2）.First threshold section and Second Threshold section are continuous, and the first threshold area
Between lower threshold be equal to Second Threshold section upper limit threshold.Second Threshold section is preferably arranged to be less than or equal to 3 DEG C.
The temperature difference is smaller in two stages, controls compressor according to pid algorithm, can effectively avoid system from responding overshoot, allow as soon as possible
Compressor enters stable state.The input parameter of pid algorithm is the rate of change of the temperature difference and the temperature difference, and output parameter is the target of compressor
Frequency.
In order to improve the comfort level of air-conditioned room, the fluctuation of indoor air temperature in air conditioned building is reduced.The of corresponding first blower fan
The first electric expansion valve is provided with the refrigerant line of one heat exchanger, the second heat exchanger of corresponding second blower fan
The second electric expansion valve is provided with refrigerant line.After air conditioner enters differential control pattern, if the temperature difference belongs to the first threshold
It is worth section, then controls compressor to be run according to differential frequency.The aperture of the first electric expansion valve is controlled simultaneously with the first blower fan wind
Speed reduction and reduce, the aperture of the second electric expansion valve reduces with the reduction of the second blower fan wind speed.First electric expansion valve
Valve opening state is remained with the second electric expansion valve（Step S206 as shown in Figure 2）.In first rank of differential control pattern
The aperture of section, the aperture of the first electric expansion valve and the second electric expansion valve can be adjusted by FUZZY ALGORITHMS FOR CONTROL,
It can be adjusted by way of tabling look-up, for the latter, by the first empirically established blower fan wind speed and corresponding first electricity
The aperture of sub- expansion valve, and the fuzzy control table of the aperture of the second blower fan wind speed and corresponding second electric expansion valve are stored in sky
In the memory cell for adjusting device controller, the is obtained by the way of table look-at according to the first blower fan wind speed and the second blower fan wind speed
The aperture of one electric expansion valve and the second electric expansion valve.This mode control structure is simple, fast response time, resource spending
Few, especially suitable user's request change is various, and the double through-flow air conditioner that air-conditioning parameter coupled relation is complicated.Into second stage
Afterwards, the aperture of the first electric expansion valve and the second electric expansion valve is preferably adjusted using fuzzy algorithmic approach, and input parameter is the first heat
The degree of superheat of exchanger and second heat exchanger, output parameter are the aperture of electric expansion valve.The regulation of second stage valve opening
Algorithm is consistent with the electronic expansion valve opening control algolithm of prior art transducer air conditioning, is not the key protection point of the present invention,
This is repeated no more.
Such as the citing in first embodiment, set first blower fan in left side to be operated according to low wind, second wind on right side is set
Machine operates according to high wind.In order to reduce the fluctuation of indoor air temperature in air conditioned building, when the temperature difference is more than 3 DEG C, it is preferably provided with positioned at left side
First electric expansion valve（3 as shown in Fig. 6）It is maintained at distance and closes the step of critical point 50, tables look-up to obtain high wind state electronic expansion
The aperture of valve, second electric expansion valve of the adjustment positioned at right side have the aperture of high wind state electric expansion valve.So, Ke Yibao
Hold has a small amount of refrigerant in the first heat exchanger (as shown in Fig. 6 1) in left side, and the second heat positioned at right side is handed over
There is the refrigerant of larger flow in parallel operation, while holding meets user's request, reduce overall energy consumption.
Flow chart shown in Figure 3 for the third specific embodiment of air-conditioner control method disclosed in this invention.When
When user needs refrigerating capacity larger, air conditioner controls according at the uniform velocity control model.User controls the first blower fan by control device
Run according to the first wind speed setting, the second blower fan of control is run according to the second wind speed setting（Step S301 as shown in Figure 3）.If the
One wind speed setting and the second wind speed setting is equal and the first wind speed setting and the second wind speed setting are highest wind velocity, air conditioner enters
Enter at the uniform velocity control model（Step S302 as shown in Figure 3）.
It is stored with controller of air conditioner under at the uniform velocity control model, compressor under outdoor environment temperature and at the uniform velocity control model
The corresponding relation of running frequency.Controller of air conditioner samples real-time outdoor environment temperature（Step S303 as shown in Figure 3）, and according to
Real-time outdoor environment temperature sets compressor operating frequency corresponding to calling（Step S304 as shown in Figure 3）, control compressor to press
Run according to the setting compressor operating frequency under at the uniform velocity control model（Step S305 as shown in Figure 3）.The first electronics is controlled simultaneously
Expansion valve and the second electric expansion valve keep full-gear（Step S306 as shown in Figure 3）, keep maximum refrigerant flow.
A more specific step is said, under the at the uniform velocity control model, outdoor environment temperature preferably is divided into multiple sections, often
The corresponding compressor operating frequency setting value in one section.When the outdoor environment temperature in real time matches any one section
When, compressor operating frequency setting value corresponding to execution.Optionally, outdoor environment temperature can be with every 6 DEG C, or every 7 DEG C are
One section, on the premise of ensureing at utmost to save, obtain the target frequency of compressor rapidly according to default condition, together
When quick regulation electric expansion valve aperture, control the flow of refrigerant, reduce the temperature difference fluctuation in room room, it is thus possible to increase
The comfortableness of strong air-conditioning.
Differential control pattern and at the uniform velocity control model combination, the starting characteristic and varying duty dynamic characteristic of refrigeration system is big
To improve, while demand of the user for air-conditioned room cold can be quickly responded, be further ensured that the use of heat exchanger
Efficiency high, stable, energy consumption is low and temperature control precision is good.
To ensure first heat exchanger and second heat exchanger normally refrigeration and heating effect, while formed to compressor
Protection, the first coil temperature sensor is provided with first heat exchanger, the second coil pipe is provided with second heat exchanger
Temperature sensor, the first coil temperature of sampling the first coil temperature sensor detection, and the inspection of the second coil temperature sensor
The second coil temperature surveyed.Further compare the first coil temperature and the second coil temperature.If air conditioner be operated in refrigeration or
Person's dehumidification mode, then lower value is sampled in the first coil temperature and the second coil temperature as early warning coil temperature.When early warning disk
When pipe temperature is less than given threshold, output alarm signal, compressor shutdown is controlled.Given threshold is at 0 DEG C or so.Similar, such as
Fruit air conditioner is operated in heating mode, then samples in the first coil temperature and the second coil temperature high value as early warning coil pipe temperature
Degree.When early warning coil temperature is higher than given threshold, output alarm signal, compressor shutdown is controlled, given threshold is on 70 DEG C of left sides
The right side, so as to avoid first heat exchanger or second heat exchanger from load exception occur, whole refrigeration system is impacted.
As described above, the first coil temperature and the second coil temperature are used to indicate first heat exchanger and second heat exchanger
Heat transfer effect, if heat exchanger shunting it is uneven, other branch road normal operations can occur, a certain branch road is due to refrigerant
Excessively cause system pressure too low, the phenomenon of frosting occur.This can influence the operation of whole refrigeration system.Therefore, the first coil pipe
Temperature sensor and the second coil temperature sensor are separately positioned on first heat exchanger and second heat exchanger air outlet temperature most
The middle part of low branch pipe all the way.Preferably coil pipe is located at lower side all the way.
The present invention also discloses a kind of air conditioner controlling device.Air conditioner controlling device includes the first blower fan and second
Blower fan.Differential identifying unit A, the differential identifying unit A are for judging the wind speed of first blower fan and second blower fan
Wind speed whether meet the control condition of differential control pattern；The control condition of the differential control pattern is that described first sets
Determine wind speed and the second wind speed setting is unequal, and first wind speed setting and the second wind speed setting are not equal to zero；
With compressor frequency determining unit B, into after differential control pattern, the compressor frequency determining unit B is used for basis
First setting running frequency corresponding to the first wind speed setting calling, second according to corresponding to being called second wind speed setting
Running frequency is set, differential running frequency is calculated and controls compressor to be run according to the differential running frequency；Wherein, the difference
Fast running frequency is equal to the average of the first setting running frequency and the second setting running frequency.
The present invention also discloses a kind of air conditioner using above-mentioned control method, control method specifically refers to above-mentioned
The detailed description of three embodiments and the detailed description of Figure of description, will not be repeated here.Using above-mentioned control method
Air conditioner has same technique effect.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
The present invention is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic；
And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (10)
1. a kind of air-conditioner control method, air conditioner comprises at least the first blower fan and the second blower fan, it is characterised in that the control
Method comprises the following steps：
User sets first blower fan and operated according to the first wind speed setting, sets second blower fan according to the second wind speed setting
Operating；If first wind speed setting and the second wind speed setting are unequal, and first wind speed setting and the second wind speed setting
Not equal to zero, air conditioner enters differential control pattern；
The first setting running frequency according to corresponding to being called first wind speed setting, according to second wind speed setting calling pair
The the second setting running frequency answered, calculates differential running frequency and controls compressor to be run according to the differential running frequency；Its
In, the differential running frequency is equal to the average of the described first setting running frequency and the second setting running frequency.
2. air-conditioner control method according to claim 1, it is characterised in that after air conditioner enters differential control pattern,
Judge whether the temperature difference of design temperature and indoor temperature belongs to first threshold section, if the temperature difference belongs to first threshold area
Between, then calculate the differential running frequency and control compressor to be run according to the differential running frequency.
3. air-conditioner control method according to claim 2, it is characterised in that after air conditioner enters differential control pattern,
If whether the temperature difference of design temperature and indoor temperature is not belonging to first threshold section and belongs to Second Threshold section, according to PID
Algorithm calculates compressor target frequency and controls compressor operating to the target frequency；First threshold section and Second Threshold area
Between it is continuous, and the lower threshold in the first threshold section is equal to the upper limit threshold in Second Threshold section.
4. air-conditioner control method according to claim 3, it is characterised in that the first heat of corresponding first blower fan is handed over
The first electric expansion valve, the refrigerant of the second heat exchanger of corresponding second blower fan are provided with the refrigerant line of parallel operation
The second electric expansion valve is provided with pipeline；After air conditioner enters differential control pattern, if the temperature difference belongs to first threshold
Section, then compressor is controlled to be run according to the differential running frequency, the aperture of first electric expansion valve is with the first blower fan
The reduction of wind speed and reduce, the aperture of second electric expansion valve reduces with the reduction of the second blower fan wind speed；Described first
Electric expansion valve and the second electric expansion valve keep valve opening state.
5. air-conditioner control method according to claim 4, it is characterised in that the control method also includes following step
Suddenly：
If the first wind speed setting and the second wind speed setting is equal and first wind speed setting and the second wind speed setting are highest
Wind speed, air conditioner enter at the uniform velocity control model；
It is stored with controller of air conditioner under at the uniform velocity control model, the corresponding pass of outdoor environment temperature and compressor operating frequency
System；
Controller of air conditioner samples real-time outdoor environment temperature, and compression is set according to corresponding to calling real-time outdoor environment temperature
Machine running frequency, control compressor is according to the setting compressor operating frequency operation；First electric expansion valve and described
Second electric expansion valve keeps full-gear.
6. air-conditioner control method according to claim 5, it is characterised in that：
Under the at the uniform velocity control model, the outdoor environment temperature is divided into multiple sections, the corresponding compression in each section
Machine running frequency setting value, when the real-time outdoor environment temperature matches any one section, compressor corresponding to execution is transported
Line frequency setting value.
7. air-conditioner control method according to claim 6, it is characterised in that：
The first coil temperature sensor is provided with the first heat exchanger, the second disk is provided with the second heat exchanger
Pipe temperature sensor；Sample the first coil temperature of the first coil temperature sensor detection, and the second coil pipe temperature
The second coil temperature of sensor detection is spent, first coil temperature and the second coil pipe are sampled according to the operational mode of air conditioner
The lower value or high value of temperature are as early warning coil temperature, when the early warning coil temperature exceedes given threshold, output report
Alert signal.
8. air-conditioner control method according to claim 7, it is characterised in that：
First coil temperature sensor and the second coil temperature sensor are separately positioned on the first heat exchanger and
The middle part of the minimum branch pipe all the way of two heat exchangers air outlet temperature.
9. a kind of air conditioner controlling device, air conditioner includes the first blower fan and the second blower fan, it is characterised in that the control device
Including：
Differential identifying unit, the differential identifying unit are used to judge the wind speed of first blower fan and the wind of second blower fan
Whether speed meets the control condition of differential control pattern；The control condition of the differential control pattern is the first setting wind
Speed and the second wind speed setting are unequal, and first wind speed setting and the second wind speed setting are not equal to zero；
With compressor frequency determining unit, into after differential control pattern, the compressor frequency determining unit is used for according to institute
The first setting running frequency corresponding to the first wind speed setting calling is stated, second sets according to corresponding to being called second wind speed setting
Determine running frequency, calculate differential running frequency and control compressor to be run according to the differential running frequency；Wherein, the differential
Running frequency is equal to the average of the first setting running frequency and the second setting running frequency.
10. a kind of air conditioner, it is characterised in that using the air-conditioner control method as described in any one of claim 1 to 8.
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Effective date of registration: 20210127 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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