CN105135622B - The control method and domestic air conditioning of domestic air conditioning - Google Patents
The control method and domestic air conditioning of domestic air conditioning Download PDFInfo
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- CN105135622B CN105135622B CN201510585787.7A CN201510585787A CN105135622B CN 105135622 B CN105135622 B CN 105135622B CN 201510585787 A CN201510585787 A CN 201510585787A CN 105135622 B CN105135622 B CN 105135622B
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Abstract
The invention discloses a kind of domestic air conditioning, the domestic air conditioning includes:Controller, compressor, indoor fan, indoor heat exchanger, outdoor fan, outdoor heat exchanger and electric expansion valve, the controller is when receiving Computer mode open command, the domestic air conditioning is controlled to enter Computer mode, and according to domestic air conditioning refrigerating operaton described in default Computer mode control rule control, so that the domestic air conditioning is applied to building environment.The invention also discloses a kind of control method of domestic air conditioning.The present invention is by controller when controlling the domestic air conditioning to enter Computer mode, according to domestic air conditioning refrigerating operaton described in default Computer mode control rule control, so as to ensure that domestic air conditioning can reliably carry out cryogenic refrigeration, and then domestic air conditioning is caused to be applied to building environment.
Description
Technical field
The present invention relates to the control method and domestic air conditioning of air-conditioning technical field, more particularly to a kind of domestic air conditioning.
Background technology
Air conditioner is generally divided into two kinds of domestic air conditioner and machine room air conditioner.Domestic air conditioner is to temperature, humidity, wind speed etc.
Comfort index requires higher, but does not require that air conditioner runs without interruption for 24 hours, and cost is low, and installation is more convenient.Computer room is empty
Device is adjusted to be generally used for cooling to the computer room for being provided with the pyrotoxins such as main frame or processor, its most significant feature is to open
Refrigeration mode is opened, annual longtime running, reliability requirement is higher, and cost is also higher, and installation is complex.
At present, increasing client often pacifies domestic air conditioner to reduce cost and pursue the convenience of installation
Loaded in small communication station environment, reach the purpose to be cooled to pyrotoxins such as the main frame in small communication station, processors.Due to small
Type building environment is higher to the reliability requirement of cryogenic refrigeration, and existing domestic air conditioner can not ensure the reliable of cryogenic refrigeration
Property.
The content of the invention
It is a primary object of the present invention to provide the control method and domestic air conditioning of a kind of domestic air conditioning, it is intended to solve existing
Domestic air conditioner can not ensure cryogenic refrigeration reliability technical problem.
The control method of domestic air conditioning provided by the invention, applied in domestic air conditioning, the domestic air conditioning includes control
Device, compressor, indoor fan, indoor heat exchanger, outdoor fan, outdoor heat exchanger and electric expansion valve, the domestic air conditioning
Control method includes:
The controller controls the domestic air conditioning to enter Computer mode when receiving Computer mode open command;
The controller is according to domestic air conditioning refrigerating operaton described in default Computer mode control rule control, so that described
Domestic air conditioning is applied to building environment.
Preferably, the controller controls domestic air conditioning refrigerating operaton described in rule control according to default Computer mode,
So that the domestic air conditioning is applied to the step of building environment and included:
When detecting that current indoor temperature is more than the first temperature threshold, the controller controls the compressor according to the
One preset upper limit frequency is run;
When detecting that current indoor temperature is less than second temperature threshold value, the controller controls the compressor according to pre-
If lower frequency limit is run;
Current indoor temperature is being detected more than or equal to the second temperature threshold value and less than or equal to the described first temperature
When spending threshold value, the controller determines the running frequency of the compressor according to current design temperature and current indoor temperature, and
The compressor is controlled to be run according to the running frequency of determination;
Wherein, first temperature threshold is more than the second temperature threshold value, and the first preset upper limit frequency is more than institute
State pre-determined lower limit frequency.
Preferably, it is more than or equal to the second temperature threshold value and less than or equal to described first in current indoor temperature
During temperature threshold, the step of controller control compressor is run according to the running frequency of determination, includes:
It is more than the 3rd temperature threshold in current outdoor temperature, and the running frequency determined is more than the second preset upper limit frequency
During rate, the controller controls the compressor to be run according to the second preset upper limit frequency;
It is more than the 3rd temperature threshold in current outdoor temperature, and the running frequency determined is less than or equal to second and preset
During upper limiting frequency, the controller controls the compressor to be run according to the running frequency of determination;
It is less than the 4th temperature threshold in current outdoor temperature, and the running frequency determined is more than the 3rd preset upper limit frequency
During rate, the controller controls the compressor to be run according to the 3rd preset upper limit frequency;
It is less than the 4th temperature threshold in current outdoor temperature, and the running frequency determined is less than or equal to the 3rd and preset
During upper limiting frequency, the controller controls the compressor to be run according to the running frequency of determination;
When being more than or equal to the 4th temperature threshold in current outdoor temperature, and being less than or equal to three temperature thresholds,
The controller controls the compressor to be run according to the running frequency of determination;
Wherein, the 3rd temperature threshold is more than the 4th temperature threshold, and the second preset upper limit frequency is more than institute
State the 3rd preset upper limit frequency.
Preferably, the controller controls domestic air conditioning refrigerating operaton described in rule control according to default Computer mode,
So that the domestic air conditioning is applied to the step of building environment and included:
Detecting that coil temperature corresponding to the indoor heat exchanger is pre- by switching to second in the first preset temperature section
If when in temperature range, the rotating speed of the indoor fan is adjusted to corresponding to the second preset temperature section as current level
Default wind speed rank.
Preferably, the controller controls domestic air conditioning refrigerating operaton described in rule control according to default Computer mode,
So that the domestic air conditioning is applied to the step of building environment and included:
When detecting that coil temperature corresponding to the outdoor heat exchanger is more than five temperature thresholds, the controller control
The outdoor fan is run according to the first preset upper limit rotating speed;
When detecting that coil temperature corresponding to the outdoor heat exchanger is less than six temperature thresholds, the controller control
The outdoor fan is run according to the first pre-determined lower limit rotating speed;
Coil temperature corresponding to the outdoor heat exchanger is being detected more than or equal to the 6th temperature threshold and is being less than
Or during equal to five temperature threshold, the controller determines the rotating speed of the outdoor fan according to current outdoor temperature, and
The outdoor fan is controlled to be run according to the rotating speed of determination;
Wherein, the 5th temperature threshold is more than the 6th temperature threshold, and the first preset upper limit rotating speed is more than institute
State the first pre-determined lower limit rotating speed.
Preferably, it is more than or equal to the 6th temperature threshold and small in coil temperature corresponding to the outdoor heat exchanger
When five temperature threshold, the step of controller control outdoor fan is run according to the rotating speed of determination, wraps
Include:
When current outdoor temperature is more than seven temperature thresholds, the controller controls the outdoor fan pre- according to second
If upper limit rotating speed is run;
It is less than the 8th temperature threshold in current outdoor temperature, and the rotating speed of the outdoor fan determined is more than the 3rd and preset
During upper limit rotating speed, the controller controls the outdoor fan to be run according to the 3rd preset upper limit rotating speed;
It is less than the 8th temperature threshold in current outdoor temperature, and the rotating speed of the outdoor fan determined is less than second and preset
During lower limit rotating speed, the controller controls the outdoor fan to be run according to the second pre-determined lower limit rotating speed;
It is less than the 8th temperature threshold in current outdoor temperature, and the rotating speed of the outdoor fan determined is less than or equal to the
Three preset upper limit rotating speeds and when being more than the second pre-determined lower limit rotating speed, the controller controls the outdoor fan according to determination
The outdoor fan rotating speed operation;
It is more than or equal to the 8th temperature threshold in current outdoor temperature, and is less than or equal to the 7th temperature threshold
When, the controller controls the outdoor fan to be run according to the rotating speed of the outdoor fan of determination;
Wherein, the 7th temperature threshold is more than the 8th temperature threshold, and the second preset upper limit rotating speed is more than institute
The 3rd preset upper limit rotating speed is stated, the 3rd preset upper limit rotating speed is more than the second pre-determined lower limit rotating speed.
Preferably, the controller controls domestic air conditioning refrigerating operaton described in rule control according to default Computer mode,
So that the domestic air conditioning is applied to the step of building environment and included:
When detecting that the electric expansion valve resets, the electric expansion valve is first controlled to be adjusted by current aperture to default
Positive maximum opening, and after lasting preset time, then control the electric expansion valve to recover to the current aperture, to complete
Reset.
In addition, domestic air conditioning provided by the invention includes:Controller, compressor, indoor fan, indoor heat exchanger, outdoor
Blower fan, outdoor heat exchanger and electric expansion valve, it is characterised in that the controller when receiving Computer mode open command,
Control the domestic air conditioning to enter Computer mode, and freeze according to domestic air conditioning described in default Computer mode control rule control
Operation, so that the domestic air conditioning is applied to building environment.
Preferably, the domestic air conditioning also includes being used for the first temperature sensor for detecting indoor temperature;
The controller receives the current indoor temperature signal of the first temperature sensor output, and described detecting
When current indoor temperature signal is more than the first temperature threshold, the compressor is controlled to be run according to the first preset upper limit frequency;
The controller controls the compressor to press when detecting that current indoor temperature signal is less than second temperature threshold value
Run according to pre-determined lower limit frequency;
The controller detect current indoor temperature signal be more than or equal to the second temperature threshold value and be less than or
During equal to first temperature threshold, the operation frequency of the compressor is determined according to current design temperature and current indoor temperature
Rate, and control the compressor to be run according to the running frequency of determination;
Wherein, first temperature threshold is more than the second temperature threshold value, and the first preset upper limit frequency is more than institute
State pre-determined lower limit frequency.
Preferably, the domestic air conditioning also includes being used for the second temperature sensor for detecting outdoor temperature;
The controller is used for the current outdoor temperature signal for receiving the second temperature sensor output, and is detecting
Current outdoor temperature signal is more than the 3rd temperature threshold, and when the running frequency determined is more than the second preset upper limit frequency,
The compressor is controlled to be run according to the second preset upper limit frequency;Or it is more than the 3rd temperature threshold in current outdoor temperature
Value, and the running frequency determined controls the compressor according to determination when being less than or equal to the second preset upper limit frequency
The running frequency operation;Or detecting that current outdoor temperature is less than the 4th temperature threshold, and the operation frequency determined
When rate is more than the 3rd preset upper limit frequency, the compressor is controlled to be run according to the 3rd preset upper limit frequency;Or working as
Preceding outdoor temperature is less than the 4th temperature threshold, and when the running frequency determined is less than or equal to the 3rd preset upper limit frequency,
The compressor is controlled to be run according to the running frequency of determination;Or detecting that current outdoor temperature is more than or equal to institute
When stating the 4th temperature threshold, and being less than or equal to three temperature thresholds, operation frequency of the compressor according to determination is controlled
Rate is run;
Wherein, the 3rd temperature threshold is more than the 4th temperature threshold, and the second preset upper limit frequency is more than institute
State the 3rd preset upper limit frequency.
Preferably, the domestic air conditioning also includes the 3rd temperature biography for being used to detect the coil temperature of the indoor heat exchanger
Sensor;
The controller receives coil temperature corresponding to the indoor heat exchanger of the three-temperature sensor output, and
Detecting coil temperature corresponding to the indoor heat exchanger by switching to the second preset temperature area in the first preset temperature section
When interior, the rotating speed of the indoor fan is adjusted to presetting wind speed corresponding to the second preset temperature section as current level
Rank.
Preferably, the domestic air conditioning also includes the 4th temperature biography for being used to detect the coil temperature of the outdoor heat exchanger
Sensor;
The controller receives coil temperature corresponding to the outdoor heat exchanger of the 4th temperature sensor output, and
When detecting that coil temperature corresponding to the outdoor heat exchanger is more than five temperature thresholds, the outdoor fan is controlled according to
One preset upper limit rotating speed is run;Or detecting that coil temperature corresponding to the outdoor heat exchanger is less than the 6th temperature threshold
When, control the outdoor fan to be run according to the first pre-determined lower limit rotating speed;Or detecting corresponding to the outdoor heat exchanger
Coil temperature is more than or equal to the 6th temperature threshold and when being less than or equal to five temperature threshold, according to working as cup
Outer temperature determines the rotating speed of the outdoor fan, and controls the outdoor fan to be run according to the rotating speed of determination;
Wherein, the 5th temperature threshold is more than the 6th temperature threshold, and the first preset upper limit rotating speed is more than institute
State the first pre-determined lower limit rotating speed.
Preferably, the domestic air conditioning also includes being used for the second temperature sensor for detecting outdoor temperature;
The controller is used for the current outdoor temperature signal for receiving the second temperature sensor output, and is working as cup
When outer temperature signal is more than seven temperature thresholds, the outdoor fan is controlled to be run according to the second preset upper limit rotating speed;Or
Current outdoor temperature signal is less than the 8th temperature threshold, and the rotating speed of the outdoor fan determined turns more than the 3rd preset upper limit
When fast, the outdoor fan is controlled to be run according to the 3rd preset upper limit rotating speed;Or it is less than in current outdoor temperature signal
8th temperature threshold, and when the rotating speed of the outdoor fan determined is less than the second pre-determined lower limit rotating speed, the control outdoor wind
Machine is run according to the second pre-determined lower limit rotating speed;Or it is less than the 8th temperature threshold, and the institute determined in current outdoor temperature
When stating the rotating speed of outdoor fan less than or equal to the 3rd preset upper limit rotating speed and being more than the second pre-determined lower limit rotating speed, the control
Device processed controls the outdoor fan to be run according to the rotating speed of the outdoor fan of determination;It is or big in current outdoor temperature signal
In or equal to the 8th temperature threshold, and when being less than or equal to seven temperature threshold, control the outdoor fan according to
The rotating speed operation of the outdoor fan determined;
Wherein, the 7th temperature threshold is more than the 8th temperature threshold, and the second preset upper limit rotating speed is more than institute
The 3rd preset upper limit rotating speed is stated, the 3rd preset upper limit rotating speed is more than the second pre-determined lower limit rotating speed.
Preferably, the controller is additionally operable to, when detecting that the electric expansion valve resets, first control the electronics swollen
Swollen valve is adjusted to pre-set forward maximum opening, and after lasting preset time by current aperture, then controls the electric expansion valve
Recover to the current aperture, to complete to reset.
The control method and domestic air conditioning of domestic air conditioning provided by the invention, opened by controller receiving Computer mode
When opening instruction, the domestic air conditioning is controlled to enter Computer mode, and according to family described in default Computer mode control rule control
Run with air conditioner refrigerating, so as to ensure that domestic air conditioning can reliably carry out cryogenic refrigeration, and then domestic air conditioning is applicable
In building environment.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of the control method preferred embodiment of domestic air conditioning of the present invention;
Fig. 2 is the high-level schematic functional block diagram of domestic air conditioning preferred embodiment of the present invention.
The realization, functional characteristics and advantage of the object of the invention will be described further referring to the drawings in conjunction with the embodiments.
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 domestic air conditioning, applied to the domestic variable frequency that in domestic air conditioning, is particularly suitable for use in
In air-conditioning.The domestic air conditioning includes controller, compressor, indoor fan, indoor heat exchanger, outdoor fan, outdoor heat exchanger
And electric expansion valve.Domestic air conditioning is generally used in the environment such as office and house, generally comprises refrigeration mode and heating mode.
Under refrigeration mode or heating mode, domestic air conditioning is when adjusting the running frequency of compressor, typically according to design temperature and currently
Difference between indoor temperature is typically preset with the corresponding relation of difference and running frequency come running frequency corresponding to determining,
Difference is bigger, and running frequency is bigger;Domestic air conditioning is when adjusting indoor fan rotating speed, typically according to the wind speed mould of the setting of user
Formula determines the rotating speed of indoor fan, for example, the wind speed pattern that user can set can be Jing Yin, low wind, apoplexy, high wind and strong
Wind etc.;Domestic air conditioning is typically corresponding with outdoor fan rotating speed according to default outdoor temperature when adjusting outdoor fan rotating speed
Relation, directly determine outdoor fan rotating speed corresponding to current outdoor temperature.
Domestic air conditioning provided by the invention can also be applied to machine in addition to it can be applied in the environment such as office and house
In room environment, that is, it can be also used for providing the equipment such as the main frame in computer room, processor long-term and lasting cryogenic refrigeration environment.
Therefore, domestic air conditioning provided by the invention is in addition to including common refrigeration mode and heating mode, in addition to is applied to computer room
Computer mode in environment, under Computer mode, domestic air conditioning provided by the invention can provide reliable, lasting cryogenic refrigeration
Environment.
Reference picture 1, Fig. 1 are the schematic flow sheet of the control method preferred embodiment of domestic air conditioning of the present invention, and the present invention carries
The control method of the domestic air conditioning gone out comprises the following steps:
Step S10, the controller control the domestic air conditioning to enter computer room when receiving Computer mode open command
Pattern;
Step S20, the controller control domestic air conditioning refrigerating operaton described in rule control according to default Computer mode,
So that the domestic air conditioning is applied to building environment.
In the present embodiment, " Computer mode " button can be set up on the remote control of the domestic air conditioning, is pressed triggering this
During key, remote control can send Computer mode open command to the controller;Or can also be on the panel of domestic air conditioning
" Computer mode " control is set up, when triggering the control, you can be considered as controller and have received Computer mode open command.
Under Computer mode, domestic air conditioning is merely able to freeze.
Preferably, in order to ensure that domestic air conditioning can continuously and effectively be freezed under Computer mode, the controller
When receiving preset failure signal, it still is able to control the domestic air conditioning to maintain refrigeration operational state.Preset failure signal
Such as can be fault-signal corresponding to fault-signal corresponding to default sensor or other default components, as long as not shadow
Ring refrigerating operaton.
It is further preferable that when controller receives fault message, output alarm signal.The form example of output alarm signal
Such as can be:Display panel display alarm information is controlled, either controls display lamp output alarm signal or control buzzer defeated
Go out alarm signal.When controller controls display lamp output alarm signal, display lamp can pass through flicker or continuous illumination
Form output alarm signal.It is further preferable that controller will persistently control above-mentioned display panel, display lamp or buzzer output report
Alert signal, untill trouble shooting corresponding to the alarm signal.So as to be effectively improved above-mentioned domestic air conditioning in computer room mould
The reliability of cryogenic refrigeration is carried out under formula.
It is further preferable that under Computer mode, domestic air conditioning still is able to refrigerating operaton at relatively low ambient temperatures.Example
Such as, when outdoor temperature is less than -15 DEG C, domestic air conditioning still is able to maintain refrigerating operaton.It is further preferable that under Computer mode,
Domestic air conditioning will not reach temperature and shut down, i.e., when temperature reaches design temperature indoors, domestic air conditioning still is able to keep with predeterminated frequency
Refrigerating operaton.
Above-mentioned default Computer mode control rule for example can be but be not limited to following several ways:According to indoor temperature
Adjusting the running frequency of compressor, (such as indoor temperature then controls the operation of compressor frequently when be higher than a certain preset temperature threshold value
Rate is run according to higher frequency), the maximum frequency of operation of compressor is either adjusted according to outdoor temperature or changed according to interior
(such as the coil temperature of indoor heat exchanger is less than a certain preset temperature threshold value to the rotating speed of the coil temperature regulation indoor fan of hot device
When, then control indoor fan to be run according to higher rotating speed), or adjusted according to the coil temperature and outdoor temperature of outdoor heat exchanger
Save outdoor fan rotating speed and maximum (top) speed (such as when the coil temperature of outdoor heat exchanger is more than a certain preset temperature threshold value,
Then outdoor fan is controlled to be run according to higher rotating speed), or the reseting procedure of regulation electric expansion valve.So as to according to above-mentioned pre-
If Computer mode control rule so that the carry out cryogenic refrigeration that above-mentioned domestic air conditioning can be reliable, lasting, so as to effective
Ground provides the running environment suitable for computer room, and be particularly suitable for use in small communication station environment.Therefore, user is with for small communication station
Refrigeration demand when, can directly use above-mentioned domestic air conditioning, without use existing air conditioner in machine room, be effectively reduced
Cost, and reduce the complexity of installation.
The control method of domestic air conditioning provided by the invention, by controller when receiving Computer mode open command,
Control the domestic air conditioning to enter Computer mode, and freeze according to domestic air conditioning described in default Computer mode control rule control
Operation, so as to ensure that domestic air conditioning can reliably carry out cryogenic refrigeration, and then domestic air conditioning is caused to be applied to building environment.
Further, the first embodiment of the control method based on domestic air conditioning of the present invention, the invention also provides family expenses
The second embodiment of the control method of air-conditioning, step S20 include:
When detecting that current indoor temperature is more than the first temperature threshold, the controller controls the compressor according to the
One preset upper limit frequency is run;
When detecting that current indoor temperature is less than second temperature threshold value, the controller controls the compressor according to pre-
If lower frequency limit is run;
Current indoor temperature is being detected more than or equal to the second temperature threshold value and less than or equal to the described first temperature
When spending threshold value, the controller determines the running frequency of the compressor according to current design temperature and current indoor temperature, and
The compressor is controlled to be run according to the running frequency of determination;
Wherein, first temperature threshold is more than the second temperature threshold value, and the first preset upper limit frequency is more than institute
State pre-determined lower limit frequency.
In the present embodiment, the size of the first temperature threshold can be configured according to being actually needed, it is preferable that the first temperature
Spend threshold value can be 30 DEG C to 38 DEG C between, it is further preferable that the first temperature threshold can be 35 DEG C.Second temperature threshold value it is big
It is small to be configured according to being actually needed, it is preferable that second temperature threshold value can be 0 DEG C to 10 DEG C between, it is further preferable that
Second temperature threshold value can be 0 DEG C.
The size of above-mentioned first preset upper limit frequency can be configured according to being actually needed, it is preferable that first presets
Limit the rated limit frequency of frequency relatively compressor.For example, above-mentioned domestic air conditioning is (such as common under non-Computer mode
Under refrigeration mode or heating mode), its default maximum frequency of operation is set to Fmax, then above-mentioned first preset upper limit frequency is preferred
For more than Fmax.In the present embodiment, the first preset upper limit frequency is preferably 1.1Fmax.
The size of above-mentioned pre-determined lower limit frequency can be configured according to being actually needed.Preferably, above-mentioned domestic air conditioning exists
Under non-Computer mode (such as under common refrigeration mode or heating mode), its default minimum running frequency is set to Fmin
(Fmax>Fmin), then above-mentioned pre-determined lower limit frequency is preferably equal to Fmin.
Optionally, the controller determines the compressor according to the difference of current design temperature and current indoor temperature
Running frequency, for example, the corresponding relation of difference and running frequency can be preset with, according to current design temperature and current indoor temperature
The difference of degree, the running frequency according to corresponding to determining above-mentioned corresponding relation can be connect.
The present embodiment is by the way that when detecting that current indoor temperature is more than the first temperature threshold, control compressor is according to larger
The operation of the first preset upper limit frequency, and when detecting that current indoor temperature is less than second temperature threshold value, still control is compressed
Machine is run according to less pre-determined lower limit frequency, so as to keep more reliable cryogenic refrigeration operation.
Further, it is big in current indoor temperature in order to further improve reliability of the domestic air conditioning in cryogenic refrigeration
In or equal to the second temperature threshold value and when being less than or equal to first temperature threshold, the controller controls compressor
The step of being run according to the running frequency of determination includes:
It is more than the 3rd temperature threshold in current outdoor temperature, and the running frequency determined is more than the second preset upper limit frequency
During rate, the controller controls the compressor to be run according to the second preset upper limit frequency;
It is less than the 4th temperature threshold in current outdoor temperature, and the running frequency determined is more than the 3rd preset upper limit frequency
During rate, the controller controls the compressor to be run according to the 3rd preset upper limit frequency;
When being more than or equal to the 4th temperature threshold in current outdoor temperature, and being less than or equal to three temperature thresholds,
The controller controls the compressor to be run according to the running frequency of determination;
Wherein, the 3rd temperature threshold is more than the 4th temperature threshold, and the second preset upper limit frequency is more than institute
State the 3rd preset upper limit frequency.
It should be noted that detect current indoor temperature be more than or equal to the second temperature threshold value and be less than or
During equal to first temperature threshold, the controller is according to determining the difference of current design temperature and current indoor temperature
The running frequency of compressor.
Preferably, it is more than the 3rd temperature threshold in current outdoor temperature, and the running frequency determined is less than or equal to
During the second preset upper limit frequency, the controller controls the compressor to be run according to the running frequency of determination.
Preferably, it is less than the 4th temperature threshold in current outdoor temperature, and the running frequency determined is less than or equal to
During the 3rd preset upper limit frequency, the controller controls the compressor to be run according to the running frequency of determination;
In the present embodiment, the size of above-mentioned 3rd temperature threshold can be configured according to being actually needed, it is preferable that the
Three temperature thresholds can be 36 DEG C to 40 DEG C between, it is further preferable that the 3rd temperature threshold can be 38 DEG C.Above-mentioned 4th temperature
The size of threshold value can be configured according to being actually needed, it is preferable that the 4th temperature threshold can be 0 DEG C to 6 DEG C between, more
Preferably, the 4th temperature threshold can be 0 DEG C.
The size of above-mentioned second preset upper limit frequency can be configured according to being actually needed, it is preferable that second presets
Limit the rated limit frequency of frequency relatively compressor.For example, above-mentioned second preset upper limit frequency is preferably greater than Fmax.This
In embodiment, the second preset upper limit frequency is preferably equal to 1.1Fmax.
The size of above-mentioned 3rd preset upper limit frequency can be configured according to being actually needed.Preferably, the above-mentioned 3rd is pre-
If upper limiting frequency is preferably less than Fmax, in the present embodiment, the 3rd preset upper limit frequency is preferably equal to 0.7Fmax.
Further, the first or second embodiments of the control method based on the invention described above domestic air conditioning, the present invention is also
The 3rd embodiment of the control method of domestic air conditioning is proposed, step S20 includes:Detecting corresponding to the indoor heat exchanger
When coil temperature in the first preset temperature section by switching in the second preset temperature section, by the rotating speed of the indoor fan by
Current level is adjusted to default wind speed rank corresponding to the second preset temperature section.
In the present embodiment, some temperature ranges can be preset, the present embodiment is carried out exemplified by setting three temperature ranges
Illustrate, first preset temperature section is the section more than 4 DEG C, and second preset temperature section is more than 0 DEG C and is less than or waits
In 4 DEG C of section, the 3rd preset temperature section is the section less than or equal to 0 DEG C.Above-mentioned each preset temperature section is corresponding
Default wind speed rank can be configured according to being actually needed.For example, wind speed is preset corresponding to first preset temperature section
Rank can be apoplexy pattern, and it can be high wind pattern that wind speed rank is preset corresponding to second preset temperature section, the 3rd
It can be high wind pattern that wind speed rank is preset corresponding to preset temperature section.It should be noted that in general domestic air conditioning except
Outside with above-mentioned three kinds default wind speed ranks, also with silent mode and low wind pattern.After domestic air conditioning enters Computer mode,
Above-mentioned silent mode and low wind pattern will be cancelled, and when being currently set to silent mode or low wind pattern, equal default setting is
Apoplexy pattern.
When coil temperature corresponding to heat exchanger changes indoors, and the coil temperature difference position changed after preceding and change
In in two above-mentioned preset temperature sections, then the preset temperature section where coil temperature before changing is above-mentioned first default
Temperature range, the preset temperature section where the coil temperature after change are above-mentioned second preset temperature section.
For example, the temperature before coil temperature conversion corresponding to heat exchanger is 5 DEG C indoors, and the wind speed level set before changing
Not Wei apoplexy when, through after a period of time, controller detects that coil temperature corresponding to indoor heat exchanger is changed to 3 DEG C, therefore,
The section where temperature after coil temperature change is above-mentioned second preset temperature section (i.e. more than 0 DEG C and less than or equal to 4
DEG C section), it is high wind that wind speed rank is preset corresponding to the section, and therefore, controller is adjusted the rotating speed of indoor fan by apoplexy
Whole paramount wind.Again through after a period of time, controller detects that coil temperature is changed to -1 DEG C corresponding to indoor heat exchanger, because
This, the section where temperature after coil temperature change is the above-mentioned 3rd preset temperature section (area i.e. more than or equal to 0 DEG C
Between), default wind speed rank corresponding to the section is high wind, and therefore, controller is adjusted the rotating speed of indoor fan to strong by high wind
Wind.Again through after a period of time, controller detects that coil temperature corresponding to indoor heat exchanger is changed to 1 DEG C, therefore, coil pipe temperature
The section where temperature after degree change is above-mentioned second preset temperature section (area i.e. more than 0 DEG C and less than or equal to 4 DEG C
Between), default wind speed rank corresponding to the section is high wind, and therefore, controller is adjusted the rotating speed of indoor fan by high wind paramount
Wind.
It should be noted that the temperature before coil temperature conversion corresponding to heat exchanger is 5 DEG C indoors, and set before changing
Wind speed rank when being high wind or high wind, through after a period of time, controller detects coil temperature corresponding to indoor heat exchanger
Be changed to 3 DEG C, the section where temperature after coil temperature change for above-mentioned second preset temperature section (i.e. more than 0 DEG C and
Section less than or equal to 4 DEG C), default wind speed rank corresponding to the section is high wind, and now, controller will not change interior
The rotating speed of blower fan.
Further, the first to the 3rd any embodiment of the control method based on the invention described above domestic air conditioning, this hair
The fourth embodiment of the bright control method that also proposed domestic air conditioning, step S20 include:
When detecting that coil temperature corresponding to the outdoor heat exchanger is more than five temperature thresholds, the controller control
The outdoor fan is run according to the first preset upper limit rotating speed;
When detecting that coil temperature corresponding to the outdoor heat exchanger is less than six temperature thresholds, the controller control
The outdoor fan is run according to the first pre-determined lower limit rotating speed;
Coil temperature corresponding to the outdoor heat exchanger is being detected more than or equal to the 6th temperature threshold and is being less than
Or during equal to five temperature threshold, the controller determines the rotating speed of the outdoor fan according to current outdoor temperature, and
The outdoor fan is controlled to be run according to the rotating speed of determination;
Wherein, the 5th temperature threshold is more than the 6th temperature threshold, and the first preset upper limit rotating speed is more than institute
State the first pre-determined lower limit rotating speed.
In the present embodiment, the size of the 5th temperature threshold can be configured according to being actually needed, it is preferable that the 5th temperature
Spend threshold value can be 45 DEG C to 50 DEG C between, it is further preferable that the 5th temperature threshold can be 48 DEG C.6th temperature threshold it is big
It is small to be configured according to being actually needed, it is preferable that the 6th temperature threshold can be 15 DEG C to 20 DEG C between, be more highly preferred to
Ground, second temperature threshold value can be 15 DEG C.
The size of above-mentioned first preset upper limit rotating speed can be configured according to being actually needed, it is preferable that first presets
Limit the rated limit rotating speed of rotating speed relatively outdoor fan.For example, above-mentioned domestic air conditioning is (such as common under non-Computer mode
Refrigeration mode or heating mode under), the default maximum running speed of its outdoor fan is set to Nmax, then above-mentioned first it is default on
It is preferably greater than Nmax to limit rotating speed.In the present embodiment, the first preset upper limit rotating speed is preferably 1.1Nmax.
The size of above-mentioned first pre-determined lower limit rotating speed can be configured according to being actually needed.Preferably, above-mentioned family expenses are empty
Adjust under non-Computer mode (such as under common refrigeration mode or heating mode), the default minimum running speed of its outdoor fan
It is set to Nmin (Nmax>Nmin), then above-mentioned first pre-determined lower limit rotating speed is preferably equal to Nmin.
The controller determines that the mode of the rotating speed of the outdoor fan is referred to existing skill according to current outdoor temperature
Art, for example, the corresponding relation of outdoor temperature and outdoor fan rotating speed can be preset with, according to current outdoor temperature, root can be connect
According to outdoor fan rotating speed corresponding to the determination of above-mentioned corresponding relation.
The present embodiment is by when detecting that coil temperature corresponding to outdoor heat exchanger is more than five temperature thresholds, control room
Outer blower fan is run according to larger the first preset upper limit rotating speed, and is detecting that coil temperature corresponding to outdoor heat exchanger is less than the
During six temperature thresholds, still outdoor fan is controlled to be run according to less first pre-determined lower limit rotating speed, so as to keep more
Reliable cryogenic refrigeration operation.
Further, in order to further improve reliability of the domestic air conditioning in cryogenic refrigeration, in the outdoor heat exchanger
It is described when corresponding coil temperature is more than or equal to the 6th temperature threshold and is less than or equal to five temperature threshold
The step of controller controls outdoor fan to be run according to the rotating speed of determination includes:
When current outdoor temperature is more than seven temperature thresholds, the controller controls the outdoor fan pre- according to second
If upper limit rotating speed is run;
It is less than the 8th temperature threshold in current outdoor temperature, and the rotating speed of the outdoor fan determined is more than the 3rd and preset
During upper limit rotating speed, the controller controls the outdoor fan to be run according to the 3rd preset upper limit rotating speed;
It is less than the 8th temperature threshold in current outdoor temperature, and the rotating speed of the outdoor fan determined is less than second and preset
During lower limit rotating speed, the controller controls the outdoor fan to be run according to the second pre-determined lower limit rotating speed;
It is more than or equal to the 8th temperature threshold in current outdoor temperature, and is less than or equal to the 7th temperature threshold
When, the controller controls the outdoor fan to be run according to the rotating speed of the outdoor fan of determination;
Wherein, the 7th temperature threshold is more than the 8th temperature threshold, and the second preset upper limit rotating speed is more than institute
The 3rd preset upper limit rotating speed is stated, the 3rd preset upper limit rotating speed is more than the second pre-determined lower limit rotating speed.
It should be noted that detecting that it is warm that coil temperature corresponding to the outdoor heat exchanger is more than or equal to the described 6th
When spending threshold value and being less than or equal to five temperature threshold, the controller determines the outdoor according to current outdoor temperature
The rotating speed of blower fan.
Preferably, it is less than the 8th temperature threshold in current outdoor temperature, and the rotating speed of the outdoor fan determined is less than
Or equal to the 3rd preset upper limit rotating speed and when being more than the second pre-determined lower limit rotating speed, the controller controls the outdoor fan
Rotating speed according to the outdoor fan of determination is run;
In the present embodiment, the size of above-mentioned 7th temperature threshold can be configured according to being actually needed, it is preferable that the
Seven temperature thresholds can be 36 DEG C to 40 DEG C between, it is further preferable that the 7th temperature threshold can be 38 DEG C.Above-mentioned 8th temperature
The size of threshold value can be configured according to being actually needed, it is preferable that the 8th temperature threshold can be 0 DEG C to 6 DEG C between, more
Preferably, the 8th temperature threshold can be 0 DEG C.
The size of above-mentioned second preset upper limit rotating speed can be configured according to being actually needed, it is preferable that second presets
Limit the rated limit rotating speed of rotating speed relatively outdoor fan.For example, above-mentioned second preset upper limit rotating speed is preferably greater than Nmax.
In the present embodiment, the second preset upper limit rotating speed is preferably equal to 1.1Nmax.
The size of above-mentioned 3rd preset upper limit rotating speed can be configured according to being actually needed.Preferably, the above-mentioned 3rd is pre-
If upper limit rotating speed is preferably less than Nmax, in the present embodiment, the 3rd preset upper limit rotating speed is preferably equal to outdoor fan in low wind
Preset rotation speed under pattern.The size of above-mentioned second pre-determined lower limit rotating speed can be configured according to being actually needed.Preferably, on
State the second pre-determined lower limit rotating speed and be less than Nmax, in the present embodiment, the second pre-determined lower limit rotating speed is preferably equal to 0.8Nmin.
Further, in order to improve the reliability of electric expansion valve, electric expansion valve is avoided stuck phenomenon occur, so as to enter
One step improves reliability of the domestic air conditioning in cryogenic refrigeration, the control method based on the invention described above domestic air conditioning first to
4th any embodiment, the invention also provides the 5th embodiment of the control method of domestic air conditioning, step S20 includes:
When detecting that the electric expansion valve resets, the electric expansion valve is first controlled to be adjusted by current aperture to default
Positive maximum opening, and after lasting preset time, then control the electric expansion valve to recover to the current aperture, to complete
Reset.
In the present embodiment, electric expansion valve takes the positive, mode of timing to be resetted.For example, in electric expansion valve
The current step of aperture+200 when, electric expansion valve need reset when, then first by the step of+200 step forward direction valve opening+500.It is above-mentioned default
Time can be configured according to being actually needed, for example, could be arranged to 60 seconds.After continuing 60 seconds, then electric expansion valve is extensive
Multiple extremely+200 steps.Preferably, resetted once at interval of 120 hours.
Above-mentioned domestic air conditioning (such as under common refrigeration mode or heating mode), its default electricity under non-Computer mode
Sub- expansion valve minimum aperture is set to Dmin, it is further preferable that in order to further prevent electric expansion valve from stuck phenomenon occur, in machine
Under room pattern, the minimum aperture of electric expansion valve is more than Dmin, and in the present embodiment, the minimum aperture of electric expansion valve is preferably
1.2Dmin。
It should be noted that the control method of above-mentioned domestic air conditioning second, third, the 4th and the 5th embodiment can phase
Mutual connected applications.
The present invention further provides a kind of domestic air conditioning, it is particularly possible to is a kind of domestic variable frequency air-conditioning.Reference picture 2, Fig. 2 are
The high-level schematic functional block diagram of domestic air conditioning preferred embodiment of the present invention, the domestic air conditioning include controller 10, compressor 20, room
Inner blower 30, indoor heat exchanger (not indicated in figure), outdoor fan 40, outdoor heat exchanger (not indicated in figure) and electric expansion valve
50.Domestic air conditioning is generally used in the environment such as office and house, generally comprises refrigeration mode and heating mode.In refrigeration mode or
Under heating mode, domestic air conditioning is when adjusting the running frequency of compressor 20, typically according to design temperature and current indoor temperature
Between difference come running frequency corresponding to determining, i.e., be typically preset with the corresponding relation of difference and running frequency, difference is bigger,
Running frequency is bigger;Domestic air conditioning is when adjusting 30 rotating speed of indoor fan, typically according to the wind speed pattern of the setting of user come really
The rotating speed of indoor fan 30 is determined, for example, the wind speed pattern that user can set can be Jing Yin, low wind, apoplexy, high wind and high wind
Deng;Domestic air conditioning is when adjusting 40 rotating speed of outdoor fan, typically according to default outdoor temperature and pair of the rotating speed of outdoor fan 40
It should be related to, directly determine the rotating speed of outdoor fan 40 corresponding to current outdoor temperature.
Domestic air conditioning provided by the invention can also be applied to machine in addition to it can be applied in the environment such as office and house
In room environment, that is, it can be also used for providing the equipment such as the main frame in computer room, processor long-term and lasting cryogenic refrigeration environment.
Therefore, domestic air conditioning provided by the invention is in addition to including common refrigeration mode and heating mode, in addition to is applied to computer room
Computer mode in environment, under Computer mode, domestic air conditioning provided by the invention can provide reliable, lasting cryogenic refrigeration
Environment.
In the present embodiment, the controller 10 controls the domestic air conditioning when receiving Computer mode open command
Into Computer mode, and according to domestic air conditioning refrigerating operaton described in default Computer mode control rule control, so that the family
It is applied to building environment with air-conditioning.
In the present embodiment, " Computer mode " button can be set up on the remote control of the domestic air conditioning, is pressed triggering this
During key, remote control can send Computer mode open command to the controller 10;Or can also be in the panel of domestic air conditioning
On set up " Computer mode " control, when triggering the control, you can be considered as controller 10 and have received Computer mode open command.
Under Computer mode, domestic air conditioning is merely able to freeze.
Preferably, in order to ensure that domestic air conditioning can continuously and effectively be freezed under Computer mode, the controller
10 when receiving preset failure signal, still is able to control the domestic air conditioning to maintain refrigeration operational state.Preset failure is believed
Number for example can be fault-signal corresponding to fault-signal corresponding to default sensor or other default components, as long as not
Influence refrigerating operaton.
It is further preferable that when controller 10 receives fault message, output alarm signal.The form of output alarm signal
Such as can be:Display panel display alarm information is controlled, either controls display lamp output alarm signal or control buzzer
Output alarm signal.When controller 10 controls display lamp output alarm signal, display lamp can be by flashing or persistently sending out
The form output alarm signal of light.It is further preferable that controller 10 will persistently control above-mentioned display panel, display lamp or buzzer
Output alarm signal, untill trouble shooting corresponding to the alarm signal.Exist so as to be effectively improved above-mentioned domestic air conditioning
The reliability of cryogenic refrigeration is carried out under Computer mode.
It is further preferable that under Computer mode, domestic air conditioning still is able to refrigerating operaton at relatively low ambient temperatures.Example
Such as, when outdoor temperature is less than -15 DEG C, domestic air conditioning still is able to maintain refrigerating operaton.It is further preferable that under Computer mode,
Domestic air conditioning will not reach temperature and shut down, i.e., when temperature reaches design temperature indoors, domestic air conditioning still is able to keep with predeterminated frequency
Refrigerating operaton.
Above-mentioned default Computer mode control rule for example can be but be not limited to following several ways:According to indoor temperature
Adjusting the running frequency of compressor 20, (such as indoor temperature is when be higher than a certain preset temperature threshold value, then the fortune of control compressor 20
Line frequency is run according to higher frequency), either according to outdoor temperature adjust compressor 20 maximum frequency of operation or according to
(such as the coil temperature of indoor heat exchanger is default less than a certain for the rotating speed of the coil temperature regulation indoor fan 30 of indoor heat exchanger
During temperature threshold, then control indoor fan 30 to be run according to higher rotating speed), or according to the coil temperature of outdoor heat exchanger and
Outdoor temperature regulation outdoor fan 40 rotating speed and maximum (top) speed (such as outdoor heat exchanger coil temperature be more than it is a certain default
During temperature threshold, then outdoor fan 40 is controlled to be run according to higher rotating speed), or the reset of regulation electric expansion valve 50
Journey.So as to control rule according to above-mentioned default Computer mode so that the carry out low temperature that above-mentioned domestic air conditioning can be reliable, lasting
Refrigeration, so as to effectively provide the running environment suitable for computer room, be particularly suitable for use in small communication station environment.Therefore, user
When with refrigeration demand for small communication station, above-mentioned domestic air conditioning can be directly used, without using existing
Air conditioner in machine room, cost is significantly reduced, and reduce the complexity of installation.
Domestic air conditioning provided by the invention, by controller 10 when receiving Computer mode open command, described in control
Domestic air conditioning enters Computer mode, and controls domestic air conditioning refrigerating operaton described in rule control according to default Computer mode, from
And ensure that domestic air conditioning can reliably carry out cryogenic refrigeration, and then cause domestic air conditioning to be applied to building environment.
Further, the first embodiment based on domestic air conditioning of the present invention, the invention also provides the second of domestic air conditioning
Embodiment, the domestic air conditioning also include being used for the first temperature sensor for detecting indoor temperature;
The controller 10 receives the current indoor temperature signal of the first temperature sensor output, and detecting
When stating current indoor temperature signal and being more than the first temperature threshold, the compressor 20 is controlled to be transported according to the first preset upper limit frequency
OK;
The controller 10 controls the compressor when detecting that current indoor temperature signal is less than second temperature threshold value
20 run according to pre-determined lower limit frequency;
The controller 10 is detecting current indoor temperature signal more than or equal to the second temperature threshold value and is being less than
Or during equal to first temperature threshold, the operation of the compressor 20 is determined according to current design temperature and current indoor temperature
Frequency, and control the compressor 20 to be run according to the running frequency of determination;
Wherein, first temperature threshold is more than the second temperature threshold value, and the first preset upper limit frequency is more than institute
State pre-determined lower limit frequency.
In the present embodiment, the size of the first temperature threshold can be configured according to being actually needed, it is preferable that the first temperature
Spend threshold value can be 30 DEG C to 38 DEG C between, it is further preferable that the first temperature threshold can be 35 DEG C.Second temperature threshold value it is big
It is small to be configured according to being actually needed, it is preferable that second temperature threshold value can be 0 DEG C to 10 DEG C between, it is further preferable that
Second temperature threshold value can be 0 DEG C.
The size of above-mentioned first preset upper limit frequency can be configured according to being actually needed, it is preferable that first presets
Limit the rated limit frequency of frequency relatively compressor 20.For example, above-mentioned domestic air conditioning is (such as common under non-Computer mode
Refrigeration mode or heating mode under), its default maximum frequency of operation is set to Fmax, then above-mentioned first preset upper limit frequency is excellent
Elect as and be more than Fmax.In the present embodiment, the first preset upper limit frequency is preferably 1.1Fmax.
The size of above-mentioned pre-determined lower limit frequency can be configured according to being actually needed.Preferably, above-mentioned domestic air conditioning exists
Under non-Computer mode (such as under common refrigeration mode or heating mode), its default minimum running frequency is set to Fmin
(Fmax>Fmin), then above-mentioned pre-determined lower limit frequency is preferably equal to Fmin.
Optionally, the controller 10 determines the compressor according to the difference of current design temperature and current indoor temperature
20 running frequency, for example, the corresponding relation of difference and running frequency can be preset with, according to current design temperature and work as cup
The difference of interior temperature, the running frequency according to corresponding to determining above-mentioned corresponding relation can be connect.
The present embodiment by when detecting that current indoor temperature is more than the first temperature threshold, control compressor 20 according to compared with
Big the first preset upper limit frequency operation, and when detecting that current indoor temperature is less than second temperature threshold value, still control is pressed
Contracting machine 20 is run according to less pre-determined lower limit frequency, so as to keep more reliable cryogenic refrigeration operation.
Further, in order to further improve reliability of the domestic air conditioning in cryogenic refrigeration, the domestic air conditioning also wraps
Include the second temperature sensor for detecting outdoor temperature;
The controller 10 is additionally operable to detecting that current indoor temperature is more than or equal to the second temperature threshold value and small
When first temperature threshold, the compressor is determined according to the difference of current design temperature and current indoor temperature
20 running frequency;
The controller 10 is additionally operable to receive the current outdoor temperature signal of the second temperature sensor output, and is examining
Measure current outdoor temperature signal and be more than the 3rd temperature threshold, and the running frequency determined is more than the second preset upper limit frequency
When, control the compressor 20 to be run according to the second preset upper limit frequency;Or detecting that current outdoor temperature is less than
4th temperature threshold, and the running frequency determined is when being more than the 3rd preset upper limit frequency, control the compressor 20 according to
The 3rd preset upper limit frequency operation;Or detecting that current outdoor temperature is more than or equal to the 4th temperature threshold,
And when being less than or equal to three temperature thresholds, the compressor 20 is controlled to be run according to the running frequency of determination;
Wherein, the 3rd temperature threshold is more than the 4th temperature threshold, and the second preset upper limit frequency is more than institute
State the 3rd preset upper limit frequency.
Preferably, the controller 10 is detecting that current outdoor temperature is more than the 3rd temperature threshold, and determines described
When running frequency is less than or equal to the second preset upper limit frequency, the controller 10 controls institute of the compressor 20 according to determination
State running frequency operation.
Preferably, the controller 10 is detecting that current outdoor temperature is less than the 4th temperature threshold, and determines described
When running frequency is less than or equal to the 3rd preset upper limit frequency, the controller 10 controls institute of the compressor 20 according to determination
State running frequency operation;
In the present embodiment, the size of above-mentioned 3rd temperature threshold can be configured according to being actually needed, it is preferable that the
Three temperature thresholds can be 36 DEG C to 40 DEG C between, it is further preferable that the 3rd temperature threshold can be 38 DEG C.Above-mentioned 4th temperature
The size of threshold value can be configured according to being actually needed, it is preferable that the 4th temperature threshold can be 0 DEG C to 6 DEG C between, more
Preferably, the 4th temperature threshold can be 0 DEG C.
The size of above-mentioned second preset upper limit frequency can be configured according to being actually needed, it is preferable that second presets
Limit the rated limit frequency of frequency relatively compressor 20.For example, above-mentioned second preset upper limit frequency is preferably greater than Fmax.
In the present embodiment, the second preset upper limit frequency is preferably equal to 1.1Fmax.
The size of above-mentioned 3rd preset upper limit frequency can be configured according to being actually needed.Preferably, the above-mentioned 3rd is pre-
If upper limiting frequency is preferably less than Fmax, in the present embodiment, the 3rd preset upper limit frequency is preferably equal to 0.7Fmax.
Further, the first or second embodiments based on the invention described above domestic air conditioning, the invention also provides family expenses
The 3rd embodiment of air-conditioning, the domestic air conditioning also include the 3rd temperature for being used to detect the coil temperature of the indoor heat exchanger
Sensor;
The controller 10 receives coil temperature corresponding to the indoor heat exchanger of the three-temperature sensor output,
And detecting coil temperature corresponding to the indoor heat exchanger by switching to the second preset temperature in the first preset temperature section
When in section, the rotating speed of the indoor fan 30 is adjusted to corresponding to the second preset temperature section as current level and preset
Wind speed rank.
In the present embodiment, some temperature ranges can be preset, the present embodiment is carried out exemplified by setting three temperature ranges
Illustrate, first preset temperature section is the section more than 4 DEG C, and second preset temperature section is more than 0 DEG C and is less than or waits
In 4 DEG C of section, the 3rd preset temperature section is the section less than or equal to 0 DEG C.Above-mentioned each preset temperature section is corresponding
Default wind speed rank can be configured according to being actually needed.For example, wind speed is preset corresponding to first preset temperature section
Rank can be apoplexy pattern, and it can be high wind pattern that wind speed rank is preset corresponding to second preset temperature section, the 3rd
It can be high wind pattern that wind speed rank is preset corresponding to preset temperature section.It should be noted that in general domestic air conditioning except
Outside with above-mentioned three kinds default wind speed ranks, also with silent mode and low wind pattern.After domestic air conditioning enters Computer mode,
Above-mentioned silent mode and low wind pattern will be cancelled, and when being currently set to silent mode or low wind pattern, equal default setting is
Apoplexy pattern.
When coil temperature corresponding to heat exchanger changes indoors, and the coil temperature difference position changed after preceding and change
In in two above-mentioned preset temperature sections, then the preset temperature section where coil temperature before changing is above-mentioned first default
Temperature range, the preset temperature section where the coil temperature after change are above-mentioned second preset temperature section.
For example, the temperature before coil temperature conversion corresponding to heat exchanger is 5 DEG C indoors, and the wind speed level set before changing
Not Wei apoplexy when, through after a period of time, controller 10 detects that coil temperature corresponding to indoor heat exchanger is changed to 3 DEG C, because
This, the section where temperature after coil temperature change (i.e. more than 0 DEG C and is less than or waited for above-mentioned second preset temperature section
In 4 DEG C of section), it is high wind that wind speed rank is preset corresponding to the section, therefore, controller 10 by the rotating speed of indoor fan 30 by
Apoplexy adjusts paramount wind.Again through after a period of time, controller 10 detects that coil temperature is changed to corresponding to indoor heat exchanger-
1 DEG C, therefore, the section where temperature after coil temperature change is above-mentioned 3rd preset temperature section (i.e. more than or equal to 0
DEG C section), it is high wind that wind speed rank is preset corresponding to the section, and therefore, controller 10 is by the rotating speed of indoor fan 30 by height
Wind is adjusted to high wind.Again through after a period of time, controller 10 detects that coil temperature is changed to 1 corresponding to indoor heat exchanger
DEG C, therefore, the section where temperature after coil temperature change is (i.e. more than 0 DEG C and small for above-mentioned second preset temperature section
In or equal to 4 DEG C of section), it is high wind to preset wind speed rank corresponding to the section, and therefore, controller 10 is by indoor fan 30
Rotating speed adjusts paramount wind by high wind.
It should be noted that the temperature before coil temperature conversion corresponding to heat exchanger is 5 DEG C indoors, and set before changing
Wind speed rank when being high wind or high wind, through after a period of time, controller 10 detects coil pipe temperature corresponding to indoor heat exchanger
Degree is changed to 3 DEG C, and the section where temperature after coil temperature change is above-mentioned second preset temperature section (i.e. more than 0 DEG C
And the section less than or equal to 4 DEG C), default wind speed rank corresponding to the section is high wind, and now, controller 10 will not be changed
The rotating speed of indoor fan 30.
Further, the first to the 3rd any embodiment based on the invention described above domestic air conditioning, the invention also provides
The fourth embodiment of domestic air conditioning, the domestic air conditioning also include being used to detect the 4th of the coil temperature of the outdoor heat exchanger
Temperature sensor;
The controller 10 receives coil temperature corresponding to the outdoor heat exchanger of the 4th temperature sensor output,
And when detecting that coil temperature corresponding to the outdoor heat exchanger is more than five temperature thresholds, the outdoor fan 40 is controlled to press
Run according to the first preset upper limit rotating speed;Or detecting that coil temperature corresponding to the outdoor heat exchanger is less than the 6th temperature threshold
During value, the outdoor fan 40 is controlled to be run according to the first pre-determined lower limit rotating speed;Or detecting the outdoor heat exchanger pair
The coil temperature answered is more than or equal to the 6th temperature threshold and when being less than or equal to five temperature threshold, according to ought
Preceding outdoor temperature determines the rotating speed of the outdoor fan 40, and controls the outdoor fan 40 to be run according to the rotating speed of determination;
Wherein, the 5th temperature threshold is more than the 6th temperature threshold, and the first preset upper limit rotating speed is more than institute
State the first pre-determined lower limit rotating speed.
In the present embodiment, the size of the 5th temperature threshold can be configured according to being actually needed, it is preferable that the 5th temperature
Spend threshold value can be 45 DEG C to 50 DEG C between, it is further preferable that the 5th temperature threshold can be 48 DEG C.6th temperature threshold it is big
It is small to be configured according to being actually needed, it is preferable that the 6th temperature threshold can be 15 DEG C to 20 DEG C between, be more highly preferred to
Ground, second temperature threshold value can be 15 DEG C.
The size of above-mentioned first preset upper limit rotating speed can be configured according to being actually needed, it is preferable that first presets
Limit the rated limit rotating speed of rotating speed relatively outdoor fan 40.For example, above-mentioned domestic air conditioning is (such as general under non-Computer mode
Under logical refrigeration mode or heating mode), the default maximum running speed of its outdoor fan 40 is set to Nmax, then above-mentioned first is pre-
If upper limit rotating speed is preferably greater than Nmax.In the present embodiment, the first preset upper limit rotating speed is preferably 1.1Nmax.
The size of above-mentioned first pre-determined lower limit rotating speed can be configured according to being actually needed.Preferably, above-mentioned family expenses are empty
Adjust under non-Computer mode (such as under common refrigeration mode or heating mode), the default minimum operation of its outdoor fan 40 turns
Speed is set to Nmin (Nmax>Nmin), then above-mentioned first pre-determined lower limit rotating speed is preferably equal to Nmin.
It is existing that the controller 10 determines that the mode of the rotating speed of the outdoor fan 40 is referred to according to current outdoor temperature
There is technology, for example, the corresponding relation of outdoor temperature and the rotating speed of outdoor fan 40 can be preset with, can according to current outdoor temperature
To connect the rotating speed of outdoor fan 40 according to corresponding to determining above-mentioned corresponding relation.
The present embodiment is by when detecting that coil temperature corresponding to outdoor heat exchanger is more than five temperature thresholds, control room
Outer blower fan 40 is run according to the first larger preset upper limit rotating speed, and is detecting that coil temperature is less than corresponding to outdoor heat exchanger
During six temperature thresholds, still outdoor fan 40 is controlled to be run according to less first pre-determined lower limit rotating speed, so as to keep
More reliable cryogenic refrigeration operation.
Further, in order to further improve reliability of the domestic air conditioning in cryogenic refrigeration, the domestic air conditioning also wraps
Include the second temperature sensor for detecting outdoor temperature;
The controller 10 is additionally operable to detecting that it is described that coil temperature corresponding to the outdoor heat exchanger is more than or equal to
6th temperature threshold and when being less than or equal to five temperature threshold, the outdoor fan is determined according to current outdoor temperature
40 rotating speed;
The controller 10 is additionally operable to receive the current outdoor temperature signal of the second temperature sensor output, and is working as
When the outer temperature signal of cup is more than seven temperature thresholds, the outdoor fan 40 is controlled to be run according to the second preset upper limit rotating speed;
Or it is less than the 8th temperature threshold in current outdoor temperature signal, and the rotating speed of the outdoor fan 40 determined is pre- more than the 3rd
If during upper limit rotating speed, the outdoor fan 40 is controlled to be run according to the 3rd preset upper limit rotating speed;Or in current outdoor temperature
Degree signal is less than the 8th temperature threshold, and when the rotating speed of the outdoor fan 40 determined is less than the second pre-determined lower limit rotating speed, controls
The outdoor fan 40 is made to run according to the second pre-determined lower limit rotating speed;Or it is more than or equal in current outdoor temperature signal
8th temperature threshold, and when being less than or equal to seven temperature threshold, the outdoor fan 40 is controlled according to determination
The rotating speed operation of the outdoor fan 40;
Wherein, the 7th temperature threshold is more than the 8th temperature threshold, and the second preset upper limit rotating speed is more than institute
The 3rd preset upper limit rotating speed is stated, the 3rd preset upper limit rotating speed is more than the second pre-determined lower limit rotating speed.
Preferably, detect that current outdoor temperature is less than the 8th temperature threshold in the controller 10, and determine described
When the rotating speed of outdoor fan 40 is less than or equal to the 3rd preset upper limit rotating speed and is more than the second pre-determined lower limit rotating speed, the control
Device 10 processed controls the outdoor fan 40 to be run according to the rotating speed of the outdoor fan 40 of determination;
In the present embodiment, the size of above-mentioned 7th temperature threshold can be configured according to being actually needed, it is preferable that the
Seven temperature thresholds can be 36 DEG C to 40 DEG C between, it is further preferable that the 7th temperature threshold can be 38 DEG C.Above-mentioned 8th temperature
The size of threshold value can be configured according to being actually needed, it is preferable that the 8th temperature threshold can be 0 DEG C to 6 DEG C between, more
Preferably, the 8th temperature threshold can be 0 DEG C.
The size of above-mentioned second preset upper limit rotating speed can be configured according to being actually needed, it is preferable that second presets
Limit the rated limit rotating speed of rotating speed relatively outdoor fan 40.For example, above-mentioned second preset upper limit rotating speed is preferably greater than
Nmax.In the present embodiment, the second preset upper limit rotating speed is preferably equal to 1.1Nmax.
The size of above-mentioned 3rd preset upper limit rotating speed can be configured according to being actually needed.Preferably, the above-mentioned 3rd is pre-
If upper limit rotating speed is preferably less than Nmax, in the present embodiment, the 3rd preset upper limit rotating speed is preferably equal to outdoor fan 40 low
Preset rotation speed under wind pattern.The size of above-mentioned second pre-determined lower limit rotating speed can be configured according to being actually needed.Preferably,
Above-mentioned second pre-determined lower limit rotating speed is less than Nmax, and in the present embodiment, the second pre-determined lower limit rotating speed is preferably equal to 0.8Nmin.
Further, in order to improve the reliability of electric expansion valve 50, electric expansion valve 50 is avoided stuck phenomenon occur, from
And reliability of the domestic air conditioning in cryogenic refrigeration is further improved, first to fourth based on the invention described above domestic air conditioning times
One embodiment, the invention also provides the 5th embodiment of domestic air conditioning, the controller 10 is additionally operable to detecting the electricity
When sub- expansion valve 50 resets, the electric expansion valve 50 is first controlled to be adjusted by current aperture to pre-set forward maximum opening, and
After continuing preset time, then the electric expansion valve 50 is controlled to recover to the current aperture, to complete to reset.
In the present embodiment, electric expansion valve 50 takes the positive, mode of timing to be resetted.For example, in electronic expansion
During the current step of aperture+200 of valve 50, when electric expansion valve 50 needs to reset, then first by the step of+200 step forward direction valve opening+500.On
Stating preset time can be configured according to being actually needed, for example, could be arranged to 60 seconds.After continuing 60 seconds, then electronics is swollen
Swollen valve 50 recovers to+200 steps.Preferably, resetted once at interval of 120 hours.
Above-mentioned domestic air conditioning (such as under common refrigeration mode or heating mode), its default electricity under non-Computer mode
Sub- 50 minimum aperture of expansion valve is set to Dmin, it is further preferable that in order to further prevent electric expansion valve 50 from stuck phenomenon occur,
Under Computer mode, the minimum aperture of electric expansion valve 50 is more than Dmin, in the present embodiment, the minimum aperture of electric expansion valve 50
Preferably 1.2Dmin.
It should be noted that above-mentioned domestic air conditioning second, third, the 4th and the 5th embodiment can be combined with each other should
With.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those key elements, and
And also include the other element being not expressly set out, or also include for this process, method, article or device institute inherently
Key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that including this
Other identical element also be present in the process of key element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on such understanding, technical scheme is substantially done to prior art in other words
Going out the part of contribution can be embodied in the form of software product, and the computer software product is stored in a storage medium
In (such as ROM/RAM, magnetic disc, CD), including some instructions to cause a station terminal equipment (can be mobile phone, computer, clothes
Be engaged in device, air conditioner, or network equipment etc.) perform method described in each embodiment of the present invention.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (12)
1. a kind of control method of domestic air conditioning, applied in domestic air conditioning, the domestic air conditioning include controller, compressor,
Indoor fan, indoor heat exchanger, outdoor fan, outdoor heat exchanger and electric expansion valve, it is characterised in that the domestic air conditioning
Control method includes:
The controller controls the domestic air conditioning to enter Computer mode when receiving Computer mode open command;
The controller is according to domestic air conditioning refrigerating operaton described in default Computer mode control rule control, so that the family expenses
Air-conditioning is applied to building environment;
The controller is according to domestic air conditioning refrigerating operaton described in default Computer mode control rule control, so that the family expenses
Air-conditioning, which is applied to the step of building environment, to be included:
When detecting that current indoor temperature is more than the first temperature threshold, the controller controls the compressor pre- according to first
If upper limiting frequency is run;
When detecting that current indoor temperature is less than second temperature threshold value, the controller controls the compressor according to setting in advance
Limit frequency operation;
Current indoor temperature is being detected more than or equal to the second temperature threshold value and is being less than or equal to first temperature threshold
During value, the controller determines the running frequency of the compressor according to current design temperature and current indoor temperature, and controls
The compressor is run according to the running frequency of determination;
Wherein, first temperature threshold is more than the second temperature threshold value, and the first preset upper limit frequency is more than described pre-
If lower frequency limit.
2. the control method of domestic air conditioning as claimed in claim 1, it is characterised in that be more than or equal in current indoor temperature
The second temperature threshold value and when being less than or equal to first temperature threshold, the controller controls compressor according to determination
The running frequency operation the step of include:
It is more than the 3rd temperature threshold in current outdoor temperature, and the running frequency determined is more than the second preset upper limit frequency
When, the controller controls the compressor to be run according to the second preset upper limit frequency;
It is more than the 3rd temperature threshold in current outdoor temperature, and the running frequency determined is less than or equal to the second preset upper limit
During frequency, the controller controls the compressor to be run according to the running frequency of determination;
It is less than the 4th temperature threshold in current outdoor temperature, and the running frequency determined is more than the 3rd preset upper limit frequency
When, the controller controls the compressor to be run according to the 3rd preset upper limit frequency;
It is less than the 4th temperature threshold in current outdoor temperature, and the running frequency determined is less than or equal to the 3rd preset upper limit
During frequency, the controller controls the compressor to be run according to the running frequency of determination;
It is described when being more than or equal to the 4th temperature threshold in current outdoor temperature, and being less than or equal to three temperature thresholds
Controller controls the compressor to be run according to the running frequency of determination;
Wherein, the 3rd temperature threshold is more than the 4th temperature threshold, and the second preset upper limit frequency is more than described the
Three preset upper limit frequencies.
3. the control method of domestic air conditioning as claimed in claim 1, it is characterised in that the controller is according to default computer room
Domestic air conditioning refrigerating operaton described in Schema control rule control, so that the domestic air conditioning wraps the step of being applied to building environment
Include:
Detecting coil temperature corresponding to the indoor heat exchanger by switching to the second default temperature in the first preset temperature section
When spending in section, the rotating speed of the indoor fan is adjusted to corresponding to the second preset temperature section as current level and preset
Wind speed rank.
4. the control method of domestic air conditioning as claimed in claim 1, it is characterised in that the controller is according to default computer room
Domestic air conditioning refrigerating operaton described in Schema control rule control, so that the domestic air conditioning wraps the step of being applied to building environment
Include:
When detecting that coil temperature corresponding to the outdoor heat exchanger is more than five temperature thresholds, described in the controller control
Outdoor fan is run according to the first preset upper limit rotating speed;
When detecting that coil temperature corresponding to the outdoor heat exchanger is less than six temperature thresholds, described in the controller control
Outdoor fan is run according to the first pre-determined lower limit rotating speed;
Detecting that coil temperature corresponding to the outdoor heat exchanger is more than or equal to the 6th temperature threshold and is less than or waits
When five temperature threshold, the controller determines the rotating speed of the outdoor fan according to current outdoor temperature, and controls
The outdoor fan is run according to the rotating speed of determination;
Wherein, the 5th temperature threshold is more than the 6th temperature threshold, and the first preset upper limit rotating speed is more than described the
One pre-determined lower limit rotating speed.
5. the control method of domestic air conditioning as claimed in claim 4, it is characterised in that in disk corresponding to the outdoor heat exchanger
When pipe temperature is more than or equal to the 6th temperature threshold and is less than or equal to five temperature threshold, the controller control
The step of outdoor fan processed is run according to the rotating speed of determination includes:
When current outdoor temperature is more than seven temperature thresholds, the controller controls the outdoor fan to be preset according to second
Limit rotating speed operation;
It is less than the 8th temperature threshold in current outdoor temperature, and the rotating speed of the outdoor fan determined is more than the 3rd preset upper limit
During rotating speed, the controller controls the outdoor fan to be run according to the 3rd preset upper limit rotating speed;
It is less than the 8th temperature threshold in current outdoor temperature, and the rotating speed of the outdoor fan determined is less than the second pre-determined lower limit
During rotating speed, the controller controls the outdoor fan to be run according to the second pre-determined lower limit rotating speed;
It is less than the 8th temperature threshold in current outdoor temperature, and the rotating speed of the outdoor fan determined is pre- less than or equal to the 3rd
If upper limit rotating speed and when being more than the second pre-determined lower limit rotating speed, the controller controls institute of the outdoor fan according to determination
State the rotating speed operation of outdoor fan;
When being more than or equal to the 8th temperature threshold in current outdoor temperature, and being less than or equal to seven temperature threshold,
The controller controls the outdoor fan to be run according to the rotating speed of the outdoor fan of determination;
Wherein, the 7th temperature threshold is more than the 8th temperature threshold, and the second preset upper limit rotating speed is more than described the
Three preset upper limit rotating speeds, the 3rd preset upper limit rotating speed are more than the second pre-determined lower limit rotating speed.
6. the control method of domestic air conditioning as claimed in claim 1, it is characterised in that the controller is according to default computer room
Domestic air conditioning refrigerating operaton described in Schema control rule control, so that the domestic air conditioning wraps the step of being applied to building environment
Include:
When detecting that the electric expansion valve resets, the electric expansion valve is first controlled to be adjusted by current aperture to pre-set forward
Maximum opening, and after lasting preset time, then control the electric expansion valve to recover to the current aperture, it is multiple to complete
Position.
7. a kind of domestic air conditioning, the domestic air conditioning includes:Controller, compressor, indoor fan, indoor heat exchanger, outdoor wind
Machine, outdoor heat exchanger and electric expansion valve, it is characterised in that the controller is when receiving Computer mode open command, control
Make the domestic air conditioning and enter Computer mode, and according to domestic air conditioning refrigeration fortune described in default Computer mode control rule control
OK, so that the domestic air conditioning is applied to building environment;
The domestic air conditioning also includes being used for the first temperature sensor for detecting indoor temperature;
The controller receives the current indoor temperature signal of the first temperature sensor output, and described current detecting
When indoor temperature signal is more than the first temperature threshold, the compressor is controlled to be run according to the first preset upper limit frequency;
The controller controls the compressor according to pre- when detecting that current indoor temperature signal is less than second temperature threshold value
If lower frequency limit is run;
The controller is detecting current indoor temperature signal more than or equal to the second temperature threshold value and is being less than or equal to
During first temperature threshold, the running frequency of the compressor is determined according to current design temperature and current indoor temperature, and
The compressor is controlled to be run according to the running frequency of determination;
Wherein, first temperature threshold is more than the second temperature threshold value, and the first preset upper limit frequency is more than described pre-
If lower frequency limit.
8. domestic air conditioning as claimed in claim 7, it is characterised in that the domestic air conditioning also includes being used to detect outdoor temperature
Second temperature sensor;
The controller is additionally operable to receive the current outdoor temperature signal of the second temperature sensor output, and works as detecting
The outer temperature signal of cup is more than the 3rd temperature threshold, and when the running frequency determined is more than the second preset upper limit frequency, controls
The compressor is made to run according to the second preset upper limit frequency;Or it is more than the 3rd temperature threshold in current outdoor temperature,
And the running frequency determined controls the compressor according to described in determination when being less than or equal to the second preset upper limit frequency
Running frequency is run;Or detecting that current outdoor temperature is less than the 4th temperature threshold, and the running frequency determined is big
When the 3rd preset upper limit frequency, the compressor is controlled to be run according to the 3rd preset upper limit frequency;Or working as cup
Outer temperature is less than the 4th temperature threshold, and when the running frequency determined is less than or equal to the 3rd preset upper limit frequency, controls
The compressor is run according to the running frequency of determination;Or detecting that current outdoor temperature is more than or equal to described the
Four temperature thresholds, and when being less than or equal to three temperature thresholds, control the compressor to be transported according to the running frequency of determination
OK;
Wherein, the 3rd temperature threshold is more than the 4th temperature threshold, and the second preset upper limit frequency is more than described the
Three preset upper limit frequencies.
9. domestic air conditioning as claimed in claim 7, it is characterised in that the domestic air conditioning also includes being used to detect the interior
The three-temperature sensor of the coil temperature of heat exchanger;
The controller receives coil temperature corresponding to the indoor heat exchanger of the three-temperature sensor output, and is examining
Coil temperature corresponding to the indoor heat exchanger is measured by being switched in the first preset temperature section in the second preset temperature section
When, the rotating speed of the indoor fan is adjusted to presetting wind speed level corresponding to the second preset temperature section as current level
Not.
10. domestic air conditioning as claimed in claim 7, it is characterised in that the domestic air conditioning also includes being used to detect the room
4th temperature sensor of the coil temperature of external heat exchanger;
The controller receives coil temperature corresponding to the outdoor heat exchanger of the 4th temperature sensor output, and is examining
When measuring coil temperature corresponding to the outdoor heat exchanger and being more than five temperature thresholds, control the outdoor fan pre- according to first
If upper limit rotating speed is run;Or when detecting that coil temperature corresponding to the outdoor heat exchanger is less than six temperature thresholds, control
The outdoor fan is made to run according to the first pre-determined lower limit rotating speed;Or detecting coil pipe temperature corresponding to the outdoor heat exchanger
When degree is more than or equal to the 6th temperature threshold and is less than or equal to five temperature threshold, according to current outdoor temperature
The rotating speed of the outdoor fan is determined, and controls the outdoor fan to be run according to the rotating speed of determination;
Wherein, the 5th temperature threshold is more than the 6th temperature threshold, and the first preset upper limit rotating speed is more than described the
One pre-determined lower limit rotating speed.
11. domestic air conditioning as claimed in claim 10, it is characterised in that the domestic air conditioning also includes being used to detect outdoor temp
The second temperature sensor of degree;
The controller is additionally operable to receive the current outdoor temperature signal of the second temperature sensor output, and in current outdoor
When temperature signal is more than seven temperature thresholds, the outdoor fan is controlled to be run according to the second preset upper limit rotating speed;Or working as
The outer temperature signal of cup is less than the 8th temperature threshold, and the rotating speed of the outdoor fan determined is more than the 3rd preset upper limit rotating speed
When, control the outdoor fan to be run according to the 3rd preset upper limit rotating speed;Or it is less than the in current outdoor temperature signal
Eight temperature thresholds, and when the rotating speed of the outdoor fan determined is less than the second pre-determined lower limit rotating speed, control the outdoor fan
Run according to the second pre-determined lower limit rotating speed;Or it is less than the 8th temperature threshold in current outdoor temperature, and determine described
When the rotating speed of outdoor fan is less than or equal to the 3rd preset upper limit rotating speed and is more than the second pre-determined lower limit rotating speed, the control
Device controls the outdoor fan to be run according to the rotating speed of the outdoor fan of determination;Or it is more than in current outdoor temperature signal
Or equal to the 8th temperature threshold, and when being less than or equal to seven temperature threshold, the outdoor fan is controlled according to true
The rotating speed operation of the fixed outdoor fan;
Wherein, the 7th temperature threshold is more than the 8th temperature threshold, and the second preset upper limit rotating speed is more than described the
Three preset upper limit rotating speeds, the 3rd preset upper limit rotating speed are more than the second pre-determined lower limit rotating speed.
12. domestic air conditioning as claimed in claim 7, it is characterised in that the controller is additionally operable to detecting the electronics
Expansion valve reset when, first control the electric expansion valve to be adjusted by current aperture to pre-set forward maximum opening, and continue it is pre-
If after the time, then the electric expansion valve is controlled to recover to the current aperture, to complete to reset.
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CN106705361A (en) * | 2016-12-26 | 2017-05-24 | 广州华凌制冷设备有限公司 | Low-temperature refrigeration control method, controller and air conditioner |
CN106679088B (en) * | 2016-12-30 | 2019-08-09 | 美的集团股份有限公司 | A kind of air conditioner and its control method and device |
KR101802107B1 (en) * | 2017-02-09 | 2017-11-27 | 장판홍 | Refrigeration system |
CN107091515A (en) * | 2017-05-17 | 2017-08-25 | 广东美的制冷设备有限公司 | The control method and system of air conditioner, air conditioner and computer equipment |
EP3674621B1 (en) * | 2017-08-24 | 2021-10-27 | Mitsubishi Electric Corporation | Air conditioner |
CN107917508A (en) * | 2017-09-29 | 2018-04-17 | 青岛海尔空调器有限总公司 | Air-conditioning and its control method |
CN108072188A (en) * | 2017-10-30 | 2018-05-25 | 青岛海尔空调器有限总公司 | Air-conditioning device and its control method |
TWI689689B (en) * | 2018-10-01 | 2020-04-01 | 綠潔能科技股份有限公司 | Multi-mode timing controller used in intelligent air conditioning and method thereof |
CN110553350B (en) * | 2019-09-03 | 2021-04-27 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and storage medium |
CN110553349B (en) * | 2019-09-03 | 2021-04-27 | 广东美的制冷设备有限公司 | Control method of air conditioner, air conditioner and storage medium |
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