CN106016596B - The control method and air conditioner of air conditioner electronic expansion valve - Google Patents
The control method and air conditioner of air conditioner electronic expansion valve Download PDFInfo
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- CN106016596B CN106016596B CN201610348407.2A CN201610348407A CN106016596B CN 106016596 B CN106016596 B CN 106016596B CN 201610348407 A CN201610348407 A CN 201610348407A CN 106016596 B CN106016596 B CN 106016596B
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- expansion valve
- aperture
- compressor
- running frequency
- air conditioner
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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
- F24F11/62—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
-
- 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
-
- 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
-
- 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
-
- 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
Abstract
The invention discloses a kind of control methods of air conditioner electronic expansion valve, comprising: in air conditioner starting, determines the target operating frequency of compressor；It obtains the first current running frequency of the compressor and, according to the corresponding relationship of preset running frequency and the opening value of electric expansion valve, determines the corresponding opening value of first running frequency when first running frequency is not up to the target operating frequency；The aperture of electric expansion valve is adjusted to the determining opening value；Wherein, in the corresponding relationship, the preset running frequency is smaller, and corresponding opening value is smaller.The invention also discloses a kind of air conditioners.Excessive situation will not occur at compressor start initial stage in the aperture of electric expansion valve of the present invention, efficiently avoid refrigerant air-flow sound occur at compressor start initial stage, reduce the noise of air conditioner initial start stage, improve comfort of the user using air conditioner when.
Description
Technical field
The present invention relates to air conditioner technical field more particularly to the control methods and air-conditioning of a kind of air conditioner electronic expansion valve
Device.
Background technique
In air conditioner, electric expansion valve is usually set between indoor heat exchanger and outdoor heat exchanger, and in air conditioner
The aperture of electric expansion valve is controlled in operational process.In the prior art, in air conditioner initial start stage, i.e., in compressor operating frequency
Reach in the period before target frequency, the aperture of electric expansion valve can generally be adjusted to default opening value, until compressor
After running frequency reaches target frequency, the aperture of electric expansion valve can be just controlled according to the delivery temperature of compressor.Due to
Air conditioner initial start stage, compressor operating frequency is smaller, when the aperture of electric expansion valve is larger, it is easy to generate refrigerant air-flow
Sound affects comfort of the user using air-conditioning when.
Summary of the invention
The main purpose of the present invention is to provide a kind of control method of air conditioner electronic expansion valve and air conditioners, it is intended to solve
The technical issues of air conditioner initial start stage is easy to produce refrigerant air-flow sound.
The control method of air conditioner electronic expansion valve provided by the invention includes:
In air conditioner starting, the target operating frequency of compressor is determined；
The first current running frequency of the compressor is obtained, is not up to the object run in first running frequency
When frequency, according to the corresponding relationship of preset running frequency and the opening value of electric expansion valve, first running frequency is determined
Corresponding opening value；
The aperture of electric expansion valve is adjusted to the determining opening value；
Wherein, in the corresponding relationship, the preset running frequency is smaller, and corresponding opening value is smaller.
Preferably, the control method of the air conditioner electronic expansion valve further include:
After the compressor reaches the target operating frequency and stable operation, first of the compressor currently is obtained
Delivery temperature and the second current running frequency, and determine target exhaust temperature corresponding with second running frequency；
When the first exhaust temperature is greater than the target exhaust temperature, current environmental temperature is obtained, and according to default
Environment temperature, the corresponding relationship between running frequency and noise critical angle value, it is determining with current environmental temperature and described the
The corresponding noise critical angle value of two running frequencies；
The aperture for adjusting the electric expansion valve makes opening value adjusted be less than or equal to the noise critical angle
Value.
Preferably, the control method of the air conditioner electronic expansion valve further include:
When the compressor reaches the target operating frequency, according to corresponding relationship determination and the object run
Frequency is corresponding to refer to opening value, and the aperture of the electric expansion valve is adjusted to described with reference to opening value；
After the compressor stable operation, the current first exhaust temperature of the compressor and the second current fortune are obtained
Line frequency, and determine target exhaust temperature corresponding with second running frequency；
When the first exhaust temperature is greater than the target exhaust temperature, current environmental temperature is obtained, and according to default
Environment temperature, the corresponding relationship between running frequency and aperture correction value, it is determining with current environmental temperature and current operation frequently
The corresponding aperture correction value of rate；
The aperture of the electric expansion valve is adjusted according to the determining aperture correction value.
Preferably, described to obtain the current first exhaust temperature of the compressor and the second current running frequency, and really
After the step of fixed target exhaust temperature corresponding with second running frequency, further includes:
When the first exhaust temperature is less than the target exhaust temperature, the aperture of the electric expansion valve is turned down,
Until the aperture of the electric expansion valve reaches default minimum aperture or the first exhaust temperature reaches the target exhaust temperature
Degree.
Preferably, after the compressor stable operation and after adjusting the aperture of the electric expansion valve, further includes:
When being spaced preset duration after the aperture for adjusting the electric expansion valve, second of the compressor currently is obtained
Delivery temperature；
When the second exhaust temperature is greater than the target exhaust temperature, the running frequency of the compressor is reduced.
In addition, air conditioner provided by the invention includes compressor, electric expansion valve and controller, the controller includes true
Cover half block obtains module and adjustment module；
The determining module is used to determine the target operating frequency of compressor in air conditioner starting；
The module that obtains is used to obtain the first current running frequency of the compressor, and the determining module is also used to
When first running frequency is not up to the target operating frequency, according to the aperture of preset running frequency and electric expansion valve
The corresponding relationship of value determines the corresponding opening value of first running frequency；
The adjustment module is for adjusting the aperture of electric expansion valve to the determining opening value；
Wherein, in the corresponding relationship, the preset running frequency is smaller, and corresponding opening value is smaller.
Preferably, the acquisition module is also used to reach the target operating frequency and stable operation in the compressor
Afterwards, the current first exhaust temperature of the compressor and the second current running frequency are obtained, the determining module is also used to really
Fixed target exhaust temperature corresponding with second running frequency；
The acquisition module is also used to when the first exhaust temperature is greater than the target exhaust temperature, and front ring is worked as in acquisition
Border temperature, the determining module are also used to according to pair between preset environment temperature, running frequency and noise critical angle value
It should be related to, determine noise critical angle value corresponding with current environmental temperature and second running frequency；
The adjustment module is also used to adjust the aperture of the electric expansion valve, is less than or equal to opening value adjusted
The noise critical angle value.
Preferably, the determining module is also used to when the compressor reaches the target operating frequency, according to described
Corresponding relationship is determining corresponding with the target operating frequency with reference to opening value, and the adjustment module is also used to the electronics is swollen
The aperture of swollen valve is adjusted to described with reference to opening value；
The acquisition module is also used to after the compressor stable operation, obtains the current first exhaust of the compressor
Temperature and the second current running frequency, the determining module are also used to determine target row corresponding with second running frequency
Temperature degree；
The acquisition module is also used to when the first exhaust temperature is greater than the target exhaust temperature, and front ring is worked as in acquisition
Border temperature, the determining module are also used to according to the corresponding pass between preset environment temperature, running frequency and aperture correction value
System determines aperture correction value corresponding with current environmental temperature and current operation frequency；
The adjustment module is also used to adjust the aperture of the electric expansion valve according to the determining aperture correction value.
Preferably, the adjustment module is also used to when the first exhaust temperature is less than the target exhaust temperature, will
The aperture of the electric expansion valve is turned down, until the aperture of the electric expansion valve reaches default minimum aperture or the first row
Temperature degree reaches the target exhaust temperature.
Preferably, the module that obtains is also used to be spaced preset duration after the aperture for adjusting the electric expansion valve
When, obtain the current second exhaust temperature of the compressor；
The adjustment module is also used to reduce the pressure when the second exhaust temperature is greater than the target exhaust temperature
The running frequency of contracting machine.
The control method and air conditioner of air conditioner electronic expansion valve provided by the invention, by determining when air conditioner starts
The target operating frequency of compressor, and obtain the first current running frequency of the compressor, first running frequency not
When reaching the target operating frequency, according to the corresponding relationship of preset running frequency and the opening value of electric expansion valve, determine
The corresponding opening value of first running frequency, and the aperture of electric expansion valve is adjusted to the determining opening value, due to
The running frequency is smaller, and corresponding opening value is smaller, therefore the aperture of electric expansion valve will not be at compressor start initial stage
There is excessive situation, efficiently avoid refrigerant air-flow sound occur at compressor start initial stage, reduces air conditioner starting just
The noise of phase improves comfort of the user using air conditioner when.
Detailed description of the invention
Fig. 1 is the flow diagram of the control method first embodiment of air conditioner electronic expansion valve of the present invention；
Fig. 2 is the functional block diagram of controller in the air condition of that present invention first embodiment.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The present invention provides a kind of control method of air conditioner electronic expansion valve, and referring to Fig.1, Fig. 1 is that air conditioner electronic of the present invention is swollen
The flow diagram of the control method first embodiment of swollen valve, the control method of air conditioner electronic expansion valve proposed by the present invention include
Following steps:
Step S10 determines the target operating frequency of compressor in air conditioner starting；
In the present embodiment, operating parameter when target operating frequency can start according to air conditioner determines, for example, can
To be determined according to target temperature set by user.Or it can also be determined simultaneously according to parameters such as current indoor initial temperatures.
Determine that target operating frequency is the prior art, concrete mode is not limited thereto.
For air-conditioning when inactive, the running frequency of compressor is zero.After starting of air conditioner, the running frequency of compressor
It will be gradually risen by zero to target operating frequency.The process is properly termed as compressor start initial stage.
Step S20 obtains the first current running frequency of the compressor, not up to described in first running frequency
When target operating frequency, according to the corresponding relationship of preset running frequency and the opening value of electric expansion valve, described first is determined
The corresponding opening value of running frequency；
Step S30 adjusts the aperture of electric expansion valve to the determining opening value；Wherein, in the corresponding relationship
In, the preset running frequency is smaller, and corresponding opening value is smaller.
In the present embodiment, in the first running frequency miss the mark running frequency, as compressor is in starting
Initial stage.
Optionally, in compressor start initial stage, in real time or the first running frequency of determination of timing, and the can be determined
The corresponding opening value of one running frequency, and the aperture of real-time or timing adjustment electric expansion valve.
The corresponding relationship of preset running frequency and opening value can be configured according to actual needs, can be rule of thumb
Above-mentioned corresponding relationship is set, and can be guaranteed when compressor is run with a certain running frequency in corresponding relationship, if electronics is swollen
When the aperture of swollen valve is adjusted to opening value corresponding with the running frequency, air conditioner will not generate refrigerant air-flow sound.For example, for
The air conditioner that frequency conversion is 1.5, preset opening value may range from 120 steps to 160 steps in above-mentioned corresponding relationship.
Optionally, corresponding relationship can also be following relationship:
P=((F-Fmin)*(S-Pmin)/(Fmax-Fmin)+Px。
Wherein, P is the opening value of electric expansion valve；F is the current running frequency of compressor, as above-mentioned first operation frequency
Rate；FminFor the minimum running frequency of compressor fast-refrigerating/heating；FmaxIt is run for compressor fast-refrigerating/heating is maximum
Frequency；PminThe minimum aperture of electric expansion valve when for air conditioner refrigerating/heating；Electronic expansion valve opening when S is refrigerating/heating
Correction factor；PxFor other correction factors of aperture.
For example, Px=P1+T1+T2, wherein P1 can be the aperture of air conditioner initial start stage electric expansion valve；T1 is ring
Aperture correction factor at a temperature of border；T2 is the aperture correction factor under exhaust.
Wherein, Fmax, Fmin, P1, Pmin are test value, and T1, T2, S can be obtained by experiment calculation.
Optionally, when air conditioner starts, for example, when air-conditioner controller receives power-on instruction, first by electronic expansion
The aperture of valve is adjusted to the maximum opening value of electric expansion valve, then executes above-mentioned steps S20 again.Due to the electronics of different manufacturers
When leaving the factory, initial opening may be inconsistent, it is thus possible to will lead in the subsequent tune to electronic expansion valve opening for expansion valve
There is error during section, therefore, in the present embodiment, first the aperture of electric expansion valve is initialized to maximum in booting and is opened
Degree improves to easily facilitate the adjustment of the subsequent aperture to electric expansion valve to the accurate of electronic expansion valve opening adjusting
Property.
The control method of air conditioner electronic expansion valve provided by the invention, by determining compressor when air conditioner starts
Target operating frequency, and the first current running frequency of the compressor is obtained, it is not up to described in first running frequency
When target operating frequency, according to the corresponding relationship of preset running frequency and the opening value of electric expansion valve, described first is determined
The corresponding opening value of running frequency, and the aperture of electric expansion valve is adjusted to the determining opening value, due to the operation
Frequency is smaller, and corresponding opening value is smaller, therefore the aperture of electric expansion valve will not be excessive in the appearance of compressor start initial stage
The case where, it efficiently avoids refrigerant air-flow sound occur at compressor start initial stage, reduces the noise of air conditioner initial start stage,
Improve comfort of the user using air conditioner when.
Further, the first embodiment of the control method based on air conditioner electronic expansion valve of the present invention, the present invention also propose
The second embodiment of the control method of air conditioner electronic expansion valve, the control method of the air conditioner electronic expansion valve further include:
After the compressor reaches the target operating frequency and stable operation, first of the compressor currently is obtained
Delivery temperature and the second current running frequency, and determine target exhaust temperature corresponding with second running frequency；
When the first exhaust temperature is greater than the target exhaust temperature, current environmental temperature is obtained, and according to default
Environment temperature, the corresponding relationship between running frequency and noise critical angle value, it is determining with current environmental temperature and described the
The corresponding noise critical angle value of two running frequencies；
The aperture for adjusting the electric expansion valve makes opening value adjusted be less than or equal to the noise critical angle
Value.
In the present embodiment, start timing when compressor reaches target operating frequency, when timing duration reaches default
When long, it may be considered that compressor stable operation.According to experimental result, by taking 1.5 air conditioners of frequency conversion as an example, in environment temperature height
Air conditioner can just run most high frequency when in 28 DEG C or lower than 10 DEG C, other situations are generally all in intermediate frequency or low frequency, therefore from compression
Machine starts to compressor and runs to 5 after the target operating frequency to basicly stable inside air-conditioner system after ten minutes.Cause
This, for 1.5 air conditioners of frequency conversion, preset duration be set as 5 to 10 minutes it is proper.In preset duration, electronics
The aperture of expansion valve remains unchanged.After reaching preset duration, then start to obtain the current first exhaust temperature of the compressor
With the second current running frequency, and corresponding with second running frequency target exhaust temperature is determined.
In the present embodiment, after compressor stable operation, the second current running frequency may not be the target
Running frequency, it is therefore desirable to reacquire current running frequency.The running frequency of compressor is corresponding with target exhaust temperature
Relationship can be rule of thumb configured, which is the optimal delivery temperature under the running frequency.
Target exhaust temperature can be a numerical value.
Preferably, target exhaust temperature can also be a temperature range.It is greater than the temperature range in first exhaust temperature
When the upper limit, then it is assumed that first exhaust temperature is greater than the target exhaust temperature.Conversely, being less than the humidity province in first exhaust temperature
Between lower limit when, then it is assumed that first exhaust temperature be less than the target exhaust temperature.
In corresponding relationship between preset environment temperature, running frequency and noise critical angle value, noise is critical to be opened
Angle value is under its corresponding environment temperature, running frequency, and air conditioner generates the maximum opening before refrigerant air-flow sound.In the ring
Under border temperature, running frequency, if the aperture of electric expansion valve is greater than corresponding noise critical angle, air conditioner will be generated
Refrigerant air-flow sound.
In the present embodiment, after compressor stable operation, if the delivery temperature of compressor is greater than target exhaust temperature, table
It is impossible to meet the targets under current operation frequency for the aperture of electric expansion valve under bright current environmental temperature and running frequency
Delivery temperature, it is therefore desirable to increase the aperture of electric expansion valve.When adjusting the aperture of electric expansion valve, according to environment temperature
Degree, running frequency determine corresponding noise critical angle value, and control electric expansion valve opening value adjusted and be less than or wait
In the noise critical angle value, to efficiently avoid generating refrigerant air-flow sound after air conditioner stable operation.In addition,
While avoiding generating refrigerant air-flow sound, can also suitably it be adjusted according to aperture of the compressor exhaust temperature to electric expansion valve
Section, to combine the heat transfer effect of air conditioner.
Further, the first embodiment of the control method based on air conditioner electronic expansion valve of the present invention, the present invention also propose
The 3rd embodiment of the control method of air conditioner electronic expansion valve, the control method of the air conditioner electronic expansion valve further include:
When the compressor reaches the target operating frequency, according to corresponding relationship determination and the object run
Frequency is corresponding to refer to opening value, and the aperture of the electric expansion valve is adjusted to described with reference to opening value；
After the compressor stable operation, the current first exhaust temperature of the compressor and the second current fortune are obtained
Line frequency, and determine target exhaust temperature corresponding with second running frequency；
When the first exhaust temperature is greater than the target exhaust temperature, current environmental temperature is obtained, and according to default
Environment temperature, the corresponding relationship between running frequency and aperture correction value, it is determining with current environmental temperature and current operation frequently
The corresponding aperture correction value of rate；
The aperture of the electric expansion valve is adjusted according to the determining aperture correction value.
The specific embodiment of the present embodiment is referred to above-mentioned second embodiment, and the present embodiment is different from second embodiment
, when compressor reaches target operating frequency, first according to pair of preset running frequency and the opening value of electric expansion valve
Should be related to, determine it is corresponding with the target operating frequency with reference to opening value, and by the aperture of the electric expansion valve adjust to
It is described to refer to opening value.Then start timing again, when timing duration reaches preset duration, it may be considered that compressor stablizes fortune
Row.During timing, it is constant that the aperture of electric expansion valve remains at the determining reference opening value.
The present embodiment is different from second embodiment in addition, being corrected according to preset environment temperature, running frequency and aperture
Corresponding relationship between value determines aperture correction value corresponding with current environmental temperature and current operation frequency, and according to determination
The aperture correction value adjust the aperture of the electric expansion valve.
In corresponding relationship between preset environment temperature, running frequency and aperture correction value, with reference to opening value with open
The sum of correction value is spent under its corresponding environment temperature, running frequency, the maximum before air conditioner generates refrigerant air-flow sound is opened
Degree.Under the environment temperature, running frequency, if the aperture of electric expansion valve is greater than corresponding reference opening value and aperture correction value
The sum of when, then air conditioner will generate refrigerant air-flow sound.
Aperture correction value can be obtained by test.For example, by experimental test effect, in a certain environment temperature, operation
Under frequency, aperture correction value is 48, then electric expansion valve aperture adjusted is the reference under the environment temperature, running frequency
The sum of opening value and aperture correction value 48.
The present embodiment adjusts the aperture of electric expansion valve to reference aperture when compressor reaches target operating frequency
Value, and be always maintained at after compressor stable operation, then determine aperture amendment corresponding with current environmental temperature, running frequency
Value, and the aperture of electric expansion valve is adjusted into aperture correction value on the basis of reference opening value, to easily facilitate to electronics
The adjustment of the aperture of expansion valve improves the accuracy adjusted to electronic expansion valve opening.In addition, avoiding generating refrigerant air-flow
While sound, can also suitably it be adjusted according to aperture of the compressor exhaust temperature to electric expansion valve, to combine
The heat transfer effect of air conditioner.
Further, the second or third embodiments of the control method based on air conditioner electronic expansion valve of the present invention, the present invention
It also proposed the fourth embodiment of the control method of air conditioner electronic expansion valve, it is described to obtain the current first exhaust of the compressor
Temperature and the second current running frequency, and the step of determining target exhaust temperature corresponding with second running frequency it
Afterwards, further includes:
When the first exhaust temperature is less than the target exhaust temperature, the aperture of the electric expansion valve is turned down,
Until the aperture of the electric expansion valve reaches default minimum aperture or the first exhaust temperature reaches the target exhaust temperature
Degree.
In the present embodiment, when the first exhaust temperature is less than the target exhaust temperature, show current electronics
The aperture of expansion valve is excessive, can the exchange capability of heat current to air conditioner have an impact.It therefore, can will be electric according to certain rate
The aperture of sub- expansion valve is turned down, continuous to detect whether first exhaust temperature reaches target exhaust temperature during adjusting,
When reaching, then stop the adjusting to the aperture of electric expansion valve, and current aperture is kept to run.It is understood that adjusting
During section, if the aperture of electric expansion valve reaches default minimum aperture, first exhaust temperature does not still reach target
Delivery temperature also stops the adjusting to electronic expansion valve opening at this time.
Above-mentioned default minimum aperture is the minimum aperture of electric expansion valve, can be defined when leaving the factory by producer.
Optionally, target exhaust temperature is a temperature range, when first exhaust temperature is within the temperature range, then
Think that first exhaust temperature has reached target exhaust temperature.
The present embodiment by first exhaust temperature be less than target exhaust temperature when, the aperture of electric expansion valve is turned down,
To also take into account the heat transfer effect of air conditioner while avoiding generating refrigerant air-flow sound.
Further, the second or third embodiments of the control method based on air conditioner electronic expansion valve of the present invention, the present invention
The 5th embodiment that also proposed the control method of air conditioner electronic expansion valve, after the compressor stable operation and described in adjustment
After the aperture of electric expansion valve, further includes:
When being spaced preset duration after the aperture for adjusting the electric expansion valve, second of the compressor currently is obtained
Delivery temperature；
When the second exhaust temperature is greater than the target exhaust temperature, the running frequency of the compressor is reduced.
In the present embodiment, the size of preset duration can be configured according to actual needs, be not limited thereto.
If right since the first exhaust temperature of acquisition is greater than target exhaust temperature after compressor stable operation
The aperture of electric expansion valve is adjusted, and after being spaced preset duration, target exhaust is still greater than in the second exhaust temperature of acquisition
Temperature, then showing can not be under the premise of generating refrigerant air-flow sound by adjusting the aperture of electric expansion valve come so that first exhaust
Temperature reaches within the scope of temperature corresponding to target exhaust temperature, thus can reduce compressor running frequency by way of come
Reduce the delivery temperature of compressor.
Optionally, after the running frequency for reducing compressor, when being spaced preset duration, it is current compressor can be obtained again
Third delivery temperature, if third delivery temperature be less than target exhaust temperature, the running frequency of compressor can be increased, made
It obtains air conditioner normally to exchange heat, while avoiding generating refrigerant air-flow sound, has further taken into account the heat transfer effect of air conditioner.
The present invention further provides a kind of air conditioners.Referring to Fig. 2, Fig. 2 is to control in the air condition of that present invention first embodiment
The functional block diagram of device, air conditioner provided by the invention include compressor, electric expansion valve and controller 100, the control
Device 100 processed includes determining module 110, obtains module 120 and adjustment module 130；
The determining module 110 is used to determine the target operating frequency of compressor in air conditioner starting；
In the present embodiment, operating parameter when target operating frequency can start according to air conditioner determines, for example, can
To be determined according to target temperature set by user.Or it can also be determined simultaneously according to parameters such as current indoor initial temperatures.
Determine that target operating frequency is the prior art, concrete mode is not limited thereto.
For air-conditioning when inactive, the running frequency of compressor is zero.After starting of air conditioner, the running frequency of compressor
It will be gradually risen by zero to target operating frequency.The process is properly termed as compressor start initial stage.
The module 120 that obtains is used to obtain the first current running frequency of the compressor, and the determining module 110 is also
For when first running frequency is not up to the target operating frequency, according to preset running frequency and electric expansion valve
Opening value corresponding relationship, determine the corresponding opening value of first running frequency；
The adjustment module 130 is for adjusting the aperture of electric expansion valve to the determining opening value；
Wherein, in the corresponding relationship, the preset running frequency is smaller, and corresponding opening value is smaller.
In the present embodiment, in the first running frequency miss the mark running frequency, as compressor is in starting
Initial stage.
Optionally, in compressor start initial stage, in real time or the first running frequency of determination of timing, and the can be determined
The corresponding opening value of one running frequency, and the aperture of real-time or timing adjustment electric expansion valve.
The corresponding relationship of preset running frequency and opening value can be configured according to actual needs, can be rule of thumb
Above-mentioned corresponding relationship is set, and can be guaranteed when compressor is run with a certain running frequency in corresponding relationship, if electronics is swollen
When the aperture of swollen valve is adjusted to opening value corresponding with the running frequency, air conditioner will not generate refrigerant air-flow sound.For example, for
The air conditioner that frequency conversion is 1.5, preset opening value may range from 120 steps to 160 steps in above-mentioned corresponding relationship.
Optionally, corresponding relationship can also be following relationship:
P=((F-Fmin)*(S-Pmin)/(Fmax-Fmin)+Px。
Wherein, P is the opening value of electric expansion valve；F is the current running frequency of compressor, as above-mentioned first operation frequency
Rate；FminFor the minimum running frequency of compressor fast-refrigerating/heating；FmaxIt is run for compressor fast-refrigerating/heating is maximum
Frequency；PminThe minimum aperture of electric expansion valve when for air conditioner refrigerating/heating；Electronic expansion valve opening when S is refrigerating/heating
Correction factor；PxFor other correction factors of aperture.
For example, Px=P1+T1+T2, wherein P1 can be the aperture of air conditioner initial start stage electric expansion valve；T1 is ring
Aperture correction factor at a temperature of border；T2 is the aperture correction factor under exhaust.
Wherein, Fmax, Fmin, P1, Pmin are test value, and T1, T2, S can be obtained by experiment calculation.
Optionally, when air conditioner starts, for example, when air-conditioner controller receives power-on instruction, first by electronic expansion
The aperture of valve is adjusted to the maximum opening value of electric expansion valve, then executes above-mentioned steps S20 again.Due to the electronics of different manufacturers
When leaving the factory, initial opening may be inconsistent, it is thus possible to will lead in the subsequent tune to electronic expansion valve opening for expansion valve
There is error during section, therefore, in the present embodiment, first the aperture of electric expansion valve is initialized to maximum in booting and is opened
Degree improves to easily facilitate the adjustment of the subsequent aperture to electric expansion valve to the accurate of electronic expansion valve opening adjusting
Property.
Air conditioner provided by the invention by determining the target operating frequency of compressor when air conditioner starts, and obtains
The first current running frequency of the compressor, when first running frequency is not up to the target operating frequency, according to
The corresponding relationship of the opening value of preset running frequency and electric expansion valve determines the corresponding aperture of first running frequency
Value, and the aperture of electric expansion valve is adjusted to the determining opening value, it is corresponding to open since the running frequency is smaller
Angle value is smaller, therefore excessive situation will not occur at compressor start initial stage in the aperture of electric expansion valve, efficiently avoid
There is refrigerant air-flow sound at compressor start initial stage, reduce the noise of air conditioner initial start stage, improves user and use air-conditioning
Comfort when device.
Further, based on the first embodiment of the air condition of that present invention, the invention also provides the second implementations of air conditioner
Example, the acquisition module 120 is also used to after the compressor reaches the target operating frequency and stable operation, described in acquisition
The current first exhaust temperature of compressor and the second current running frequency, the determining module 110 be also used to it is determining with it is described
The corresponding target exhaust temperature of second running frequency；
The acquisition module 120 is also used to when the first exhaust temperature is greater than the target exhaust temperature, and acquisition is worked as
Preceding environment temperature, the determining module 110 be also used to according to preset environment temperature, running frequency and noise critical angle value it
Between corresponding relationship, determine corresponding with current environmental temperature and second running frequency noise critical angle value；
The adjustment module 130 is also used to adjust the aperture of the electric expansion valve, make opening value adjusted be less than or
Equal to the noise critical angle value.
In the present embodiment, start timing when compressor reaches target operating frequency, when timing duration reaches default
When long, it may be considered that compressor stable operation.According to experimental result, by taking 1.5 air conditioners of frequency conversion as an example, in environment temperature height
Air conditioner can just run most high frequency when in 28 DEG C or lower than 10 DEG C, other situations are generally all in intermediate frequency or low frequency, therefore from compression
Machine starts to compressor and runs to 5 after the target operating frequency to basicly stable inside air-conditioner system after ten minutes.Cause
This, for 1.5 air conditioners of frequency conversion, preset duration be set as 5 to 10 minutes it is proper.In preset duration, electronics
The aperture of expansion valve remains unchanged.After reaching preset duration, then start to obtain the current first exhaust temperature of the compressor
With the second current running frequency, and corresponding with second running frequency target exhaust temperature is determined.
In the present embodiment, after compressor stable operation, the second current running frequency may not be the target
Running frequency, it is therefore desirable to reacquire current running frequency.The running frequency of compressor is corresponding with target exhaust temperature
Relationship can be rule of thumb configured, which is the optimal delivery temperature under the running frequency.
Target exhaust temperature can be a numerical value.
Preferably, target exhaust temperature can also be a temperature range.It is greater than the temperature range in first exhaust temperature
When the upper limit, then it is assumed that first exhaust temperature is greater than the target exhaust temperature.Conversely, being less than the humidity province in first exhaust temperature
Between lower limit when, then it is assumed that first exhaust temperature be less than the target exhaust temperature.
In corresponding relationship between preset environment temperature, running frequency and noise critical angle value, noise is critical to be opened
Angle value is under its corresponding environment temperature, running frequency, and air conditioner generates the maximum opening before refrigerant air-flow sound.In the ring
Under border temperature, running frequency, if the aperture of electric expansion valve is greater than corresponding noise critical angle, air conditioner will be generated
Refrigerant air-flow sound.
In the present embodiment, after compressor stable operation, if the delivery temperature of compressor is greater than target exhaust temperature, table
It is impossible to meet the targets under current operation frequency for the aperture of electric expansion valve under bright current environmental temperature and running frequency
Delivery temperature, it is therefore desirable to increase the aperture of electric expansion valve.When adjusting the aperture of electric expansion valve, according to environment temperature
Degree, running frequency determine corresponding noise critical angle value, and control electric expansion valve opening value adjusted and be less than or wait
In the noise critical angle value, to efficiently avoid generating refrigerant air-flow sound after air conditioner stable operation.In addition,
While avoiding generating refrigerant air-flow sound, can also suitably it be adjusted according to aperture of the compressor exhaust temperature to electric expansion valve
Section, to combine the heat transfer effect of air conditioner.
Further, based on the first embodiment of the air condition of that present invention, the invention also provides the thirds of air conditioner to implement
Example, the determining module 110 is also used to when the compressor reaches the target operating frequency, true according to the corresponding relationship
Fixed corresponding with the target operating frequency with reference to opening value, the adjustment module 130 is also used to the electric expansion valve
Aperture is adjusted to described with reference to opening value；
The acquisition module 120 is also used to after the compressor stable operation, obtains first of the compressor currently
Delivery temperature and the second current running frequency, it is corresponding with second running frequency that the determining module 110 is also used to determination
Target exhaust temperature；
The acquisition module 120 is also used to when the first exhaust temperature is greater than the target exhaust temperature, and acquisition is worked as
Preceding environment temperature, the determining module 110 are also used to according between preset environment temperature, running frequency and aperture correction value
Corresponding relationship determines aperture correction value corresponding with current environmental temperature and current operation frequency；
The adjustment module 130 is also used to adjust opening for the electric expansion valve according to the determining aperture correction value
Degree.
The specific embodiment of the present embodiment is referred to above-mentioned second embodiment, and the present embodiment is different from second embodiment
, when compressor reaches target operating frequency, first according to pair of preset running frequency and the opening value of electric expansion valve
Should be related to, determine it is corresponding with the target operating frequency with reference to opening value, and by the aperture of the electric expansion valve adjust to
It is described to refer to opening value.Then start timing again, when timing duration reaches preset duration, it may be considered that compressor stablizes fortune
Row.During timing, it is constant that the aperture of electric expansion valve remains at the determining reference opening value.
The present embodiment is different from second embodiment in addition, being corrected according to preset environment temperature, running frequency and aperture
Corresponding relationship between value determines aperture correction value corresponding with current environmental temperature and current operation frequency, and according to determination
The aperture correction value adjust the aperture of the electric expansion valve.
In corresponding relationship between preset environment temperature, running frequency and aperture correction value, with reference to opening value with open
The sum of correction value is spent under its corresponding environment temperature, running frequency, the maximum before air conditioner generates refrigerant air-flow sound is opened
Degree.Under the environment temperature, running frequency, if the aperture of electric expansion valve is greater than corresponding reference opening value and aperture correction value
The sum of when, then air conditioner will generate refrigerant air-flow sound.
Aperture correction value can be obtained by test.For example, by experimental test effect, in a certain environment temperature, operation
Under frequency, aperture correction value is 48, then electric expansion valve aperture adjusted is the reference under the environment temperature, running frequency
The sum of opening value and aperture correction value 48.
The present embodiment adjusts the aperture of electric expansion valve to reference aperture when compressor reaches target operating frequency
Value, and be always maintained at after compressor stable operation, then determine aperture amendment corresponding with current environmental temperature, running frequency
Value, and the aperture of electric expansion valve is adjusted into aperture correction value on the basis of reference opening value, to easily facilitate to electronics
The adjustment of the aperture of expansion valve improves the accuracy adjusted to electronic expansion valve opening.In addition, avoiding generating refrigerant air-flow
While sound, can also suitably it be adjusted according to aperture of the compressor exhaust temperature to electric expansion valve, to combine
The heat transfer effect of air conditioner.
Further, based on the second or third embodiments of the air condition of that present invention, the invention also provides the of air conditioner
Four embodiments, the adjustment module 130 are also used to when the first exhaust temperature is less than the target exhaust temperature, will be described
The aperture of electric expansion valve is turned down, until the aperture of the electric expansion valve reaches default minimum aperture or the first row temperature
Degree reaches the target exhaust temperature.
In the present embodiment, when the first exhaust temperature is less than the target exhaust temperature, show current electronics
The aperture of expansion valve is excessive, can the exchange capability of heat current to air conditioner have an impact.It therefore, can will be electric according to certain rate
The aperture of sub- expansion valve is turned down, continuous to detect whether first exhaust temperature reaches target exhaust temperature during adjusting,
When reaching, then stop the adjusting to the aperture of electric expansion valve, and current aperture is kept to run.It is understood that adjusting
During section, if the aperture of electric expansion valve reaches default minimum aperture, first exhaust temperature does not still reach target
Delivery temperature also stops the adjusting to electronic expansion valve opening at this time.
Above-mentioned default minimum aperture is the minimum aperture of electric expansion valve, can be defined when leaving the factory by producer.
Optionally, target exhaust temperature is a temperature range, when first exhaust temperature is within the temperature range, then
Think that first exhaust temperature has reached target exhaust temperature.
The present embodiment by first exhaust temperature be less than target exhaust temperature when, the aperture of electric expansion valve is turned down,
To also take into account the heat transfer effect of air conditioner while avoiding generating refrigerant air-flow sound.
Further, based on the second or third embodiments of the air condition of that present invention, the invention also provides the of air conditioner
Five embodiments, the module 120 that obtains are also used to obtain when being spaced preset duration after the aperture for adjusting the electric expansion valve
Take the second exhaust temperature that the compressor is current；
The adjustment module 130 is also used to reduce institute when the second exhaust temperature is greater than the target exhaust temperature
State the running frequency of compressor.
In the present embodiment, the size of preset duration can be configured according to actual needs, be not limited thereto.
If right since the first exhaust temperature of acquisition is greater than target exhaust temperature after compressor stable operation
The aperture of electric expansion valve is adjusted, and after being spaced preset duration, target exhaust is still greater than in the second exhaust temperature of acquisition
Temperature, then showing can not be under the premise of generating refrigerant air-flow sound by adjusting the aperture of electric expansion valve come so that first exhaust
Temperature reaches within the scope of temperature corresponding to target exhaust temperature, thus can reduce compressor running frequency by way of come
Reduce the delivery temperature of compressor.
Optionally, after the running frequency for reducing compressor, when being spaced preset duration, it is current compressor can be obtained again
Third delivery temperature, if third delivery temperature be less than target exhaust temperature, the running frequency of compressor can be increased, made
It obtains air conditioner normally to exchange heat, while avoiding generating refrigerant air-flow sound, has further taken into account the heat transfer effect of air conditioner.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, technical solution of the present invention substantially in other words does the prior art
The part contributed out can be embodied in the form of software products, which is stored in a storage medium
In (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be mobile phone, computer, clothes
Business device, air conditioner or the network equipment etc.) execute method described in each embodiment of the present invention.
In addition, the description of " first ", " second " etc. involved in invention is used for description purposes only, and should not be understood as indicating
Or it implies its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " are defined as a result,
Feature can explicitly or implicitly include at least one of the features.In addition, technical solution between each embodiment can be with
It is combined with each other, but must be based on can be realized by those of ordinary skill in the art, when phase occurs in the combination of technical solution
Mutual contradiction or when cannot achieve should people think that the combination of this technical solution is not present, also not the present invention claims protection model
Within enclosing.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of control method of air conditioner electronic expansion valve, which is characterized in that the control method packet of the air conditioner electronic expansion valve
It includes:
In air conditioner starting, the target operating frequency of compressor is determined；
The first current running frequency of the compressor is obtained, is not up to the target operating frequency in first running frequency
When, according to the corresponding relationship of preset running frequency and the opening value of electric expansion valve, determine that first running frequency is corresponding
Opening value；
The aperture of electric expansion valve is adjusted to the determining opening value, so that air conditioner does not generate refrigerant air-flow sound；
Wherein, in the corresponding relationship, the preset running frequency is smaller, and corresponding opening value is smaller, the correspondence
The determination parameter of relationship includes at least the minimum running frequency Fmin of compressor fast-refrigerating/heating, compressor fast-refrigerating/system
The minimum aperture of electric expansion valve when the maximum frequency of operation Fmax and air conditioner refrigerating/heating of heat.
2. the control method of air conditioner electronic expansion valve as described in claim 1, which is characterized in that the air conditioner electronic expansion valve
Control method further include:
After the compressor reaches the target operating frequency and stable operation, the current first exhaust of the compressor is obtained
Temperature and the second current running frequency, and determine target exhaust temperature corresponding with second running frequency；
When the first exhaust temperature is greater than the target exhaust temperature, current environmental temperature is obtained, and according to preset ring
Corresponding relationship between border temperature, running frequency and noise critical angle value, it is determining to be transported with current environmental temperature and described second
The corresponding noise critical angle value of line frequency；
The aperture for adjusting the electric expansion valve makes opening value adjusted be less than or equal to the noise critical angle value.
3. the control method of air conditioner electronic expansion valve as described in claim 1, which is characterized in that the air conditioner electronic expansion valve
Control method further include:
When the compressor reaches the target operating frequency, according to corresponding relationship determination and the target operating frequency
It is corresponding to refer to opening value, and the aperture of the electric expansion valve is adjusted to described with reference to opening value；
After the compressor stable operation, the current first exhaust temperature of the compressor and the second current operation frequency are obtained
Rate, and determine target exhaust temperature corresponding with second running frequency；
When the first exhaust temperature is greater than the target exhaust temperature, current environmental temperature is obtained, and according to preset ring
Corresponding relationship between border temperature, running frequency and aperture correction value, determining and current environmental temperature and current operation frequency pair
The aperture correction value answered；
The aperture of the electric expansion valve is adjusted according to the determining aperture correction value so that aperture adjusted be less than or
The sum of opening value and aperture correction value are referred to equal to corresponding.
4. the control method of air conditioner electronic expansion valve as claimed in claim 2 or claim 3, which is characterized in that described to obtain the pressure
The current first exhaust temperature of contracting machine and the second current running frequency, and determine target corresponding with second running frequency
After the step of delivery temperature, further includes:
When the first exhaust temperature is less than the target exhaust temperature, the aperture of the electric expansion valve is turned down, until
The aperture of the electric expansion valve reaches default minimum aperture or the first exhaust temperature reaches the target exhaust temperature.
5. the control method of air conditioner electronic expansion valve as claimed in claim 2 or claim 3, which is characterized in that steady in the compressor
After fixed operation and after adjusting the aperture of the electric expansion valve, further includes:
When being spaced preset duration after the aperture for adjusting the electric expansion valve, the current second exhaust of the compressor is obtained
Temperature；
When the second exhaust temperature is greater than the target exhaust temperature, the running frequency of the compressor is reduced.
6. a kind of air conditioner, which is characterized in that the air conditioner includes compressor, electric expansion valve and controller, the control
Device includes determining module, obtains module and adjustment module；
The determining module is used to determine the target operating frequency of compressor in air conditioner starting；
The module that obtains is used to obtain the first current running frequency of the compressor, and the determining module is also used to described
When first running frequency is not up to the target operating frequency, according to the opening value of preset running frequency and electric expansion valve
Corresponding relationship determines the corresponding opening value of first running frequency；
The adjustment module is for adjusting the aperture of electric expansion valve to the determining opening value, so that air conditioner does not produce
Raw and cold medium gas fluid sound；
Wherein, in the corresponding relationship, the preset running frequency is smaller, and corresponding opening value is smaller, the correspondence
The determination parameter of relationship includes at least the minimum running frequency Fmin of compressor fast-refrigerating/heating, compressor fast-refrigerating/system
The minimum aperture of electric expansion valve when the maximum frequency of operation Fmax and air conditioner refrigerating/heating of heat.
7. air conditioner as claimed in claim 6, which is characterized in that the acquisition module is also used to reach institute in the compressor
After stating target operating frequency and stable operation, the current first exhaust temperature of the compressor and the second current operation frequency are obtained
Rate, the determining module are also used to determine target exhaust temperature corresponding with second running frequency；
The acquisition module is also used to obtain current environment temperature when the first exhaust temperature is greater than the target exhaust temperature
Degree, the determining module are also used to according to the corresponding pass between preset environment temperature, running frequency and noise critical angle value
System determines noise critical angle value corresponding with current environmental temperature and second running frequency；
The adjustment module is also used to adjust the aperture of the electric expansion valve, is less than or equal to opening value adjusted described
Noise critical angle value.
8. air conditioner as claimed in claim 6, which is characterized in that the determining module is also used to reach institute in the compressor
It is determining corresponding with the target operating frequency with reference to opening value according to the corresponding relationship when stating target operating frequency, it is described
Adjustment module is also used to adjust the aperture of the electric expansion valve to described with reference to opening value；
The acquisition module is also used to after the compressor stable operation, obtains the current first exhaust temperature of the compressor
With the second current running frequency, the determining module is also used to determine target exhaust temperature corresponding with second running frequency
Degree；
The acquisition module is also used to obtain current environment temperature when the first exhaust temperature is greater than the target exhaust temperature
Degree, the determining module are also used to according to the corresponding relationship between preset environment temperature, running frequency and aperture correction value, really
Fixed aperture correction value corresponding with current environmental temperature and current operation frequency；
The adjustment module is also used to adjust the aperture of the electric expansion valve according to the determining aperture correction value, so that
Aperture adjusted is less than or equal to corresponding with reference to the sum of opening value and aperture correction value.
9. air conditioner as claimed in claim 7 or 8, which is characterized in that the adjustment module is also used in the first exhaust
When temperature is less than the target exhaust temperature, the aperture of the electric expansion valve is turned down, until the electric expansion valve is opened
Degree reaches default minimum aperture or the first exhaust temperature reaches the target exhaust temperature.
10. air conditioner as claimed in claim 7 or 8, which is characterized in that the acquisition module is also used to adjusting the electronics
When being spaced preset duration after the aperture of expansion valve, the current second exhaust temperature of the compressor is obtained；
The adjustment module is also used to reduce the compressor when the second exhaust temperature is greater than the target exhaust temperature
Running frequency.
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| CN201610348407.2A CN106016596B (en) | 2016-05-23 | 2016-05-23 | The control method and air conditioner of air conditioner electronic expansion valve |
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| CN201610348407.2A CN106016596B (en) | 2016-05-23 | 2016-05-23 | The control method and air conditioner of air conditioner electronic expansion valve |
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| CN106594978B (en) * | 2016-11-22 | 2019-12-06 | 珠海格力电器股份有限公司 | Control method and device for air conditioner |
| CN106642843A (en) * | 2017-02-20 | 2017-05-10 | 珠海格力电器股份有限公司 | Air conditioning unit and operation control method and device thereof |
| CN107192179A (en) * | 2017-06-05 | 2017-09-22 | 广东美的暖通设备有限公司 | The control method and computer-readable recording medium of air conditioner and electric expansion valve |
| CN108758976B (en) * | 2018-06-19 | 2021-03-19 | 广东美的制冷设备有限公司 | Control method and device of air conditioner and air conditioner with control device |
| CN108759064B (en) * | 2018-08-20 | 2019-07-26 | 宁波奥克斯电气股份有限公司 | A kind of method for noise reduction control, device and multi-online air-conditioning system |
| CN110966708B (en) * | 2018-09-29 | 2021-04-20 | 青岛海尔空调器有限总公司 | Method and device for determining initial opening degree of electronic expansion valve |
| CN109341018B (en) * | 2018-10-19 | 2021-04-16 | Tcl空调器(中山)有限公司 | Air conditioner control method, air conditioner and computer readable storage medium |
| CN110542191B (en) * | 2019-09-12 | 2021-08-31 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and storage medium |
| CN110542184B (en) * | 2019-09-12 | 2021-05-14 | 广东美的制冷设备有限公司 | Operation control method, operation control device, air conditioner, and storage medium |
| CN111397116B (en) * | 2020-02-24 | 2021-06-01 | 珠海格力电器股份有限公司 | Air conditioner air suction dryness control method and device, storage medium and air conditioner |
| CN111397142B (en) * | 2020-04-16 | 2022-02-22 | 宁波奥克斯电气股份有限公司 | Control method and device for electronic expansion valve of air conditioner, air conditioner and storage medium |
| CN113834198B (en) * | 2020-06-24 | 2022-09-27 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and storage medium |
| CN111854032B (en) * | 2020-07-13 | 2021-09-21 | 珠海格力电器股份有限公司 | Control method of electronic expansion valve, control method of air conditioner and air conditioner |
| CN112066532B (en) * | 2020-08-20 | 2021-07-20 | 珠海格力电器股份有限公司 | Method and device for eliminating noise of air conditioner, electronic equipment and storage medium |
| CN112524765B (en) * | 2020-12-08 | 2022-10-28 | 青岛海尔空调器有限总公司 | Expansion valve control method and device for air conditioner, electronic equipment and storage medium |
| CN113203169B (en) * | 2021-05-10 | 2022-04-22 | 宁波奥克斯电气股份有限公司 | Refrigerant circulation quantity adjusting method and air conditioner |
| CN113883699B (en) * | 2021-09-28 | 2023-07-18 | 青岛海尔空调器有限总公司 | Control method for reducing starting refrigerant sound of air conditioning system and air conditioning system |
| CN114440395B (en) * | 2022-02-24 | 2023-10-27 | 海信空调有限公司 | Air conditioner noise reduction control method and device, air conditioner and storage medium |
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