CN106871367A - The control method and device of air-conditioner and its duplex cylinder compressor - Google Patents
The control method and device of air-conditioner and its duplex cylinder compressor Download PDFInfo
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- CN106871367A CN106871367A CN201710139020.0A CN201710139020A CN106871367A CN 106871367 A CN106871367 A CN 106871367A CN 201710139020 A CN201710139020 A CN 201710139020A CN 106871367 A CN106871367 A CN 106871367A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/006—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass for preventing frost
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Atmospheric Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of air-conditioner and its control method and device of duplex cylinder compressor, wherein, the described method comprises the following steps：Obtain the operational mode of air-conditioner；The temperature of outdoor heat exchanger is obtaining temperature detection value in real-time detection air-conditioner；Operational mode and temperature detection value according to air-conditioner judge whether to open duplex cylinder compressor and determine the mode of operation after duplex cylinder compressor unlatching, wherein, the mode of operation after duplex cylinder compressor is opened includes single cylinder mode of operation, twin-tub mode of operation and defrost mode of operation.The method according to the invention, can either prevent frosting, can protect air-conditioner from damaging again, and air-conditioner safe and reliable operation is effectively ensured.
Description
Technical field
The present invention relates to air-conditioner technical field, control method, one of duplex cylinder compressor in more particularly to a kind of air-conditioner
Plant the control device and a kind of air-conditioner of duplex cylinder compressor in air-conditioner.
Background technology
The Energy Efficiency Ratio of double-cylinder variable-capacity compressor is higher than common constant speed single cylinder compressor, therefore, double-cylinder variable-capacity compressor has
Bigger refrigerating capacity and heating capacity.For a user, double-cylinder variable-capacity compressor has refrigeration and heating effect faster.Work as pressure
When contracting machine is run with twin-tub mode of operation, the outdoor heat exchanger temperature of air-conditioner can be than the reduction or elevated of common constant speed compressor
Faster, when outdoor heat exchanger it is too high or too low for temperature when, air-conditioner is at abnormal operating state.
The content of the invention
It is contemplated that at least solving one of technical problem in above-mentioned technology to a certain extent.Therefore, of the invention
One purpose is the control method for proposing duplex cylinder compressor in a kind of air-conditioner, can either prevent frosting, and sky can be protected again
Adjust device from damaging, air-conditioner safe and reliable operation is effectively ensured.
Second object of the present invention is the control device for proposing duplex cylinder compressor in a kind of air-conditioner.
Third object of the present invention is to propose a kind of air-conditioner.
To reach above-mentioned purpose, first aspect present invention embodiment proposes a kind of control of duplex cylinder compressor in air-conditioner
Method, the method is comprised the following steps：Obtain the operational mode of the air-conditioner；Outdoor heat exchange in air-conditioner described in real-time detection
The temperature of device is obtaining temperature detection value；Operational mode and the temperature detection value according to the air-conditioner judge whether to open
Mode of operation after the duplex cylinder compressor and the determination duplex cylinder compressor unlatching, wherein, after the duplex cylinder compressor is opened
Mode of operation include single cylinder mode of operation, twin-tub mode of operation and defrost mode of operation.
The control method of duplex cylinder compressor in air-conditioner according to embodiments of the present invention, by the operation mould for obtaining air-conditioner
Formula, and detect the temperature of outdoor heat exchanger in air-conditioner, the then temperature of the operational mode according to air-conditioner and outdoor heat exchanger
Judge whether to open duplex cylinder compressor and determine the mode of operation after duplex cylinder compressor unlatching, thus, frosting can either be prevented, and
Air-conditioner can be protected from damaging, air-conditioner safe and reliable operation is effectively ensured.
In addition, the control method of duplex cylinder compressor can also have in the air-conditioner proposed according to the above embodiment of the present invention
Following additional technical characteristic：
Specifically, according to the air-conditioner operational mode and the temperature detection value judges whether to open the twin-tub pressure
Mode of operation after contracting machine and the determination duplex cylinder compressor unlatching, including：When the operational mode of the air-conditioner is to heat mould
When formula and the temperature detection value are in downward trend, judge whether the temperature detection value is less than the first temperature threshold and is more than
Equal to second temperature threshold value, wherein, first temperature threshold is more than the second temperature threshold value；If the temperature detection value
More than or equal to first temperature threshold, then allow the duplex cylinder compressor to be opened with the twin-tub mode of operation and run；If
The temperature detection value then allows the twin-tub pressure less than first temperature threshold and more than or equal to the second temperature threshold value
Contracting machine is opened with the single cylinder mode of operation and run；If the temperature detection value is less than the second temperature threshold value, and institute
State temperature detection value and reach very first time threshold value less than the duration of the second temperature threshold value, then control the air-conditioner to move back
Go out heating mode, and control the duplex cylinder compressor to be opened with the defrost mode of operation to run.
Further, according to the air-conditioner operational mode and the temperature detection value judges whether to open the twin-tub
Mode of operation after compressor and the determination duplex cylinder compressor unlatching, including：When the operational mode of the air-conditioner is to heat
When pattern and the temperature detection value are in ascendant trend, judge whether the temperature detection value is more than the second temperature threshold value
With the second difference sum and less than or equal to first temperature threshold and the first difference sum, wherein, first difference and institute
The second difference is stated to be all higher than being equal to zero；If the temperature detection value less than the second temperature threshold value and second difference it
With then continuation controls the duplex cylinder compressor to be run with the defrost mode of operation；If the temperature detection value is more than described
Second temperature threshold value is with the second difference sum and less than or equal to first temperature threshold and the first difference sum, and the temperature
Degree detected value is more than the second temperature threshold value and the second difference sum and poor less than or equal to first temperature threshold and first
The duration of value sum reaches the second time threshold, then control the duplex cylinder compressor to exit the defrost mode of operation, and
Control the duplex cylinder compressor to be opened with the single cylinder mode of operation to run；If the temperature detection value is more than the described first temperature
Degree threshold value and the first difference sum, then allowed the duplex cylinder compressor to be opened with the twin-tub mode of operation and run.
Specifically, according to the air-conditioner operational mode and the temperature detection value judges whether to open the twin-tub pressure
Mode of operation after contracting machine and the determination duplex cylinder compressor unlatching, including：When the operational mode of the air-conditioner is refrigeration mould
When formula and the temperature detection value are in ascendant trend, judge whether the temperature detection value is more than the 3rd temperature threshold and is less than
Equal to the 4th temperature threshold, wherein, the 3rd temperature threshold is less than the 4th temperature threshold；If the temperature detection value
Less than or equal to the 3rd temperature threshold, then allow the duplex cylinder compressor to be opened with the twin-tub mode of operation and run；If
The temperature detection value then allows the twin-tub pressure more than the 3rd temperature threshold and less than or equal to the 4th temperature threshold
Contracting machine is opened with the single cylinder mode of operation and run；If the temperature detection value is more than the 4th temperature threshold, forbid
The duplex cylinder compressor is opened.
Further, according to the air-conditioner operational mode and the temperature detection value judges whether to open the twin-tub
Mode of operation after compressor and the determination duplex cylinder compressor unlatching, including：When the operational mode of the air-conditioner is refrigeration
When pattern and the temperature detection value are in downward trend, judge whether the temperature detection value is less than the 3rd temperature threshold
And the difference of the 3rd difference and more than or equal to the 4th temperature threshold and the difference of the 4th difference, wherein, the 3rd difference and institute
The 4th difference is stated to be all higher than being equal to zero；If the temperature detection value is poor with the described 3rd more than or equal to the 3rd temperature threshold
The difference of value, then forbid the duplex cylinder compressor to open；If the temperature detection value less than the 3rd temperature threshold with it is described
The difference of the 3rd difference and more than or equal to the 4th temperature threshold and the difference of the 4th difference, then allow the duplex cylinder compressor
Opened with the single cylinder mode of operation and run；If the temperature detection value is poor with the described 4th less than the 4th temperature threshold
The difference of value, then allowed the duplex cylinder compressor to be opened with the twin-tub mode of operation and run.
To reach above-mentioned purpose, second aspect present invention embodiment proposes a kind of control of duplex cylinder compressor in air-conditioner
Device, the device includes：Acquisition module, the acquisition module is used to obtain the operational mode of the air-conditioner；Detection module, institute
Detection module is stated for the temperature of outdoor heat exchanger in air-conditioner described in real-time detection to obtain temperature detection value；Control module,
The control module is used to judge whether to open the twin-tub according to the operational mode and the temperature detection value of the air-conditioner
Mode of operation after compressor and the determination duplex cylinder compressor unlatching, wherein, the Working mould after the duplex cylinder compressor unlatching
Formula includes single cylinder mode of operation, twin-tub mode of operation and defrost mode of operation.
The control device of duplex cylinder compressor, air-conditioner is obtained by acquisition module in air-conditioner according to embodiments of the present invention
Operational mode, and by detection module detect air-conditioner in outdoor heat exchanger temperature, then control module is according to air-conditioner
Operational mode and outdoor heat exchanger temperature judge whether open duplex cylinder compressor and determine duplex cylinder compressor open after work
Operation mode, thus, can either prevent frosting, can protect air-conditioner from damaging again, and the safe and reliable fortune of air-conditioner is effectively ensured
OK.
In addition, the control device of duplex cylinder compressor can also have in the air-conditioner proposed according to the above embodiment of the present invention
Following additional technical characteristic：
Specifically, the control module is used for：When the operational mode of the air-conditioner is that heating mode and the temperature are examined
When measured value is in downward trend, judge the temperature detection value whether less than the first temperature threshold and more than or equal to second temperature threshold
Value, when the temperature detection value is more than or equal to first temperature threshold, it is allowed to which the duplex cylinder compressor is with the twin-tub work
Operation mode opens operation, and in the temperature detection value less than first temperature threshold and more than or equal to the second temperature threshold
During value, it is allowed to which the duplex cylinder compressor is opened with the single cylinder mode of operation and run, and institute is less than in the temperature detection value
Second temperature threshold value is stated, and the temperature detection value reaches very first time threshold less than the duration of the second temperature threshold value
During value, the air-conditioner is controlled to exit heating mode, and control the duplex cylinder compressor to open fortune with the defrost mode of operation
OK, wherein, first temperature threshold be more than the second temperature threshold value.
Further, the control module is used for：When the operational mode of the air-conditioner is heating mode and the temperature
When detected value is in ascendant trend, judge the temperature detection value whether more than the second temperature threshold value and the second difference sum
And less than or equal to first temperature threshold and the first difference sum, the second temperature threshold value is less than in the temperature detection value
During with the second difference sum, continue to control the duplex cylinder compressor to be run with the defrost mode of operation, and in the temperature
Degree detected value is more than the second temperature threshold value and the second difference sum and poor less than or equal to first temperature threshold and first
Value sum, and the temperature detection value is more than the second temperature threshold value with the second difference sum and less than or equal to described first
When the duration of temperature threshold and the first difference sum reaches the second time threshold, the duplex cylinder compressor is controlled to exit described
Defrost mode of operation, and control the duplex cylinder compressor to open operation with the single cylinder mode of operation, and in temperature inspection
When measured value is more than first temperature threshold and the first difference sum, it is allowed to which the duplex cylinder compressor is with the twin-tub mode of operation
Operation is opened, wherein, first difference and second difference are all higher than being equal to zero.
Specifically, the control module is used for：When the operational mode of the air-conditioner is that refrigeration mode and the temperature are examined
When measured value is in ascendant trend, judge the temperature detection value whether more than the 3rd temperature threshold and less than or equal to the 4th temperature threshold
Value, when the temperature detection value is less than or equal to three temperature threshold, it is allowed to which the duplex cylinder compressor is with the twin-tub work
Operation mode opens operation, and in the temperature detection value more than the 3rd temperature threshold and less than or equal to the 4th temperature threshold
During value, it is allowed to which the duplex cylinder compressor is opened with the single cylinder mode of operation and run, and it is more than institute in the temperature detection value
When stating four temperature thresholds, the duplex cylinder compressor is forbidden to open, wherein, the 3rd temperature threshold is less than the 4th temperature
Threshold value.
Further, the control module is used for：When the operational mode of the air-conditioner is refrigeration mode and the temperature
When detected value is in downward trend, judge the temperature detection value whether less than the 3rd temperature threshold and the difference of the 3rd difference
And more than or equal to the 4th temperature threshold and the difference of the 4th difference, the 3rd temperature is more than or equal in the temperature detection value
During the difference of threshold value and the 3rd difference, the duplex cylinder compressor is forbidden to open, and in the temperature detection value less than described the
When the difference and the difference more than or equal to the 4th temperature threshold and the 4th difference of three temperature thresholds and the 3rd difference, permit
Perhaps described duplex cylinder compressor is opened with the single cylinder mode of operation and run, and in the temperature detection value less than the described 4th temperature
During the difference of degree threshold value and the 4th difference, it is allowed to which the duplex cylinder compressor is opened with the twin-tub mode of operation and run, wherein,
3rd difference is all higher than being equal to zero with the 4th difference.
To reach above-mentioned purpose, third aspect present invention embodiment proposes a kind of air-conditioner, and it includes the present invention second
The control device of duplex cylinder compressor in the air-conditioner that aspect embodiment is proposed.
Air-conditioner according to embodiments of the present invention, being capable of safe and reliable operation.
Brief description of the drawings
Fig. 1 is the flow chart of the control method of duplex cylinder compressor in air-conditioner according to the embodiment of the present invention；
Fig. 2 is the relation of the temperature with duplex cylinder compressor working condition of the outdoor heat exchanger according to one embodiment of the invention
Schematic diagram；
Fig. 3 is the pass of the temperature with duplex cylinder compressor working condition of the outdoor heat exchanger according to another embodiment of the present invention
It is schematic diagram；
Fig. 4 is the block diagram of the control device of duplex cylinder compressor in air-conditioner according to the embodiment of the present invention.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
It is exemplary to scheme the embodiment of description, it is intended to for explaining the present invention, and be not considered as limiting the invention.
The air-conditioner of the embodiment of the present invention and its control method of duplex cylinder compressor and device described below in conjunction with the accompanying drawings.
Fig. 1 is the flow chart of the control method of duplex cylinder compressor in air-conditioner according to the embodiment of the present invention.
As shown in figure 1, in the air-conditioner of the embodiment of the present invention duplex cylinder compressor control method, comprise the following steps：
S1, obtains the operational mode of air-conditioner.
Wherein, the operational mode of air-conditioner includes heating mode and refrigeration mode.
S2, the temperature of outdoor heat exchanger is obtaining temperature detection value in real-time detection air-conditioner.
In one embodiment of the invention, can be gathered at interval of Preset Time (such as 200ms) by temperature sensor
The temperature of outdoor heat exchanger in air-conditioner, to obtain temperature detection value.
S3, operational mode and temperature detection value according to air-conditioner judge whether to open duplex cylinder compressor and determine twin-tub pressure
Mode of operation after the unlatching of contracting machine, wherein, the mode of operation after duplex cylinder compressor is opened includes that single cylinder mode of operation, twin-tub work
Pattern and defrost mode of operation.
In one embodiment of the invention, duplex cylinder compressor may include the first cylinder and the second cylinder.When twin-tub compression
When the mode of operation of machine is twin-tub mode of operation, its first cylinder and the second cylinder are opened, when the Working mould of duplex cylinder compressor
When formula is single cylinder mode of operation, its first cylinder is opened, the second cylinder is closed.Wherein, the capacity of the second cylinder is smaller than first
The capacity of cylinder.
In one embodiment of the invention, also can determine whether the variation tendency of temperature detection value.Specifically, can be to adjacent two
The size of the temperature of the secondary outdoor heat exchanger for collecting is compared, if the temperature of the current outdoor heat exchanger for collecting is more than
The temperature of the outdoor heat exchanger that the last time collects, then can determine whether that temperature detection value is in ascendant trend, if currently collected
Outdoor heat exchanger temperature of the temperature less than the last outdoor heat exchanger for collecting, then can determine whether that temperature detection value is in down
Drop trend.
In one embodiment of the invention, when the operational mode of air-conditioner is that heating mode and temperature detection value are in down
During drop trend, whether temperature detection value is can determine whether less than the first temperature threshold A and more than or equal to second temperature threshold value B, wherein, the
One temperature threshold A is more than second temperature threshold value B.
If temperature detection value is more than or equal to the first temperature threshold A, the temperature of outdoor heat exchanger is in relatively normal
State, can allow duplex cylinder compressor to be opened with twin-tub mode of operation and run, to ensure that air-conditioner is normally heated；If warm
Less than the first temperature threshold A and more than or equal to second temperature threshold value B, then the temperature of outdoor heat exchanger is relatively low, can permit for degree detected value
Perhaps duplex cylinder compressor is opened with single cylinder mode of operation and run, so as to the refrigerating operaton of air-conditioner can either be ensured, is prevented from again
The temperature of outdoor heat exchanger is too low；If temperature detection value is less than second temperature threshold value B, the temperature of outdoor heat exchanger is too low,
If proceeding heating operation, outdoor heat exchanger has the possibility of frosting, so if temperature detection value is less than second temperature threshold
The duration of value reaches very first time threshold value, then control air-conditioner to exit heating mode, and control duplex cylinder compressor with defrost
Mode of operation opens operation.In one embodiment of the invention, when duplex cylinder compressor is opened with defrost mode of operation and run,
Air-conditioner actual motion refrigeration mode, so that the temperature of outdoor heat exchanger is raised, the now sustainable unlatching of the second cylinder, the first gas
Cylinder can be opened after the time threshold of time delay the 3rd.
That is, as shown in Fig. 2 when the operational mode of air-conditioner is that heating mode and temperature detection value become in decline
During gesture, the first temperature threshold A can open operation as duplex cylinder compressor is judged with single cylinder mode of operation or twin-tub mode of operation
Critical condition, second temperature threshold value B can open fortune as duplex cylinder compressor is judged with single cylinder mode of operation or defrost mode of operation
Capable critical condition.
Further, when the operational mode of air-conditioner is heating mode and temperature detection value is in ascendant trend, can sentence
Whether disconnected temperature detection value is more than second temperature threshold value with the second difference sum B+D and less than or equal to the first temperature threshold and first
Difference sum A+C, wherein, the first difference C and the second difference D is all higher than being equal to zero.
If, less than second temperature threshold value and the second difference sum B+D, the temperature of outdoor heat exchanger is still for temperature detection value
It is so too low, control duplex cylinder compressor can be continued and run with defrost mode of operation；If temperature detection value is more than second temperature threshold value
With the second difference sum B+D and less than or equal to the first temperature threshold and the first difference sum A+C, and temperature detection value is more than the
Two temperature thresholds and the second difference sum B+D and less than or equal to the first temperature threshold and the duration of the first difference sum A+C
The second time threshold is reached, then the temperature of outdoor heat exchanger has been gone up, duplex cylinder compressor can be allowed to be opened with single cylinder mode of operation
Start shipment row；If temperature detection value is more than the first temperature threshold and the first difference sum A+C, the temperature of outdoor heat exchanger is raised
To relatively normal state, duplex cylinder compressor can be allowed to be opened with twin-tub mode of operation and to be run.
That is, as shown in Fig. 2 when the operational mode of air-conditioner is that heating mode and temperature detection value become in rising
During gesture, the first temperature threshold and the first difference sum A+C can be used as judging duplex cylinder compressor with single cylinder mode of operation or twin-tub work
Operation mode opens the critical condition of operation, second temperature threshold value and the second difference sum B+D can as judge duplex cylinder compressor with
Single cylinder mode of operation or defrost mode of operation open the critical condition of operation.First difference C and the second difference D cause temperature detection
Critical condition when critical condition when value is in ascendant trend is in downward trend with temperature detection value is slightly changed, and is becoming
In condition after change, second temperature threshold value and the second difference sum B+D be still less than the first temperature threshold and the first difference it
With A+C's.
In one embodiment of the invention, when the operational mode of air-conditioner is upper for refrigeration mode and temperature detection value are in
During the trend of liter, whether temperature detection value is can determine whether more than the 3rd temperature threshold B0 and less than or equal to the 4th temperature threshold A0, wherein,
3rd temperature threshold B0 is less than the 4th temperature threshold A0.
If temperature detection value is less than or equal to the 3rd temperature threshold B0, the temperature of outdoor heat exchanger is in relatively normal
State, can allow duplex cylinder compressor to be opened with twin-tub mode of operation and run；If temperature detection value is more than the 3rd temperature threshold B0
And less than or equal to the 4th temperature threshold A0, then the temperature drift of outdoor heat exchanger, can allow duplex cylinder compressor with single cylinder Working mould
Formula opens operation, so as to the refrigerating operaton of air-conditioner can either be ensured, the temperature that outdoor heat exchanger is prevented from again is too high；If
Temperature detection value is more than the 4th temperature threshold, then the temperature of outdoor heat exchanger is too high, and duplex cylinder compressor can be forbidden to open to prevent
Cause the damage of air-conditioner.
That is, as shown in figure 3, when the operational mode of air-conditioner is that refrigeration mode and temperature detection value become in rising
During gesture, the 3rd temperature threshold B0 can open operation as duplex cylinder compressor is judged with single cylinder mode of operation or twin-tub mode of operation
Critical condition, the 4th temperature threshold A0 can be used as the critical condition for determining whether unlatching duplex cylinder compressor.
Further, when the operational mode of air-conditioner is refrigeration mode and temperature detection value is in downward trend, can sentence
Disconnected temperature detection value whether less than the 3rd temperature threshold and the 3rd difference difference B0-D0 and more than or equal to the 4th temperature threshold and the
The difference A0-C0 of four differences, wherein, the 3rd difference D0 and the 4th difference C0 is all higher than being equal to zero.
If temperature detection value is more than or equal to the 3rd temperature threshold and the difference B0-D0 of the 3rd difference, outdoor heat exchanger
Temperature is still too high, and duplex cylinder compressor can be forbidden to open；If temperature detection value less than the 3rd temperature threshold and the 3rd difference it
Difference B0-D0 and more than or equal to the 4th temperature threshold and the difference A0-C0 of the 4th difference, then the temperature of outdoor heat exchanger has declined,
Duplex cylinder compressor can be allowed to be opened with single cylinder mode of operation run；If temperature detection value is poor less than the 4th temperature threshold and the 4th
The difference A0-C0 of value, then be down to relatively normal state at a temperature of outdoor heat exchanger, duplex cylinder compressor can be allowed to be worked with twin-tub
Pattern opens operation.
That is, as shown in figure 3, when the operational mode of air-conditioner is that refrigeration mode and temperature detection value become in decline
During gesture, the difference B0-D0 of the 3rd temperature threshold and the 3rd difference can be used as judging duplex cylinder compressor with single cylinder mode of operation or twin-tub
Mode of operation opens the critical condition of operation, and the difference A0-C0 of the 4th temperature threshold and the 4th difference can be used as determining whether
Open the critical condition of duplex cylinder compressor.When 3rd difference D0 and the 4th difference C0 cause temperature detection value in downward trend
Critical condition when critical condition and temperature detection value are in ascendant trend is slightly changed, and in condition after change, the 3rd
The difference B0-D0 of temperature threshold and the 3rd difference is so less than the difference A0-C0's of the 4th temperature threshold and the 4th difference.
It should be noted that the big I of first to fourth above-mentioned temperature threshold, first to fourth difference is according to outdoor
The temperature of heat exchanger sets to the actual influence of the operation of duplex cylinder compressor.
In addition, in one embodiment of the invention, can also have display on the control panel or remote control of air-conditioner
Screen, to show the running status or fault message etc. of air-conditioner.For example, when the operational mode of air-conditioner is refrigeration mode
And temperature detection value be in ascendant trend when, if temperature detection value be more than the 4th temperature threshold A0, can be carried by display screen
The temperature of awake user's current outdoor heat exchanger is too high, is unsatisfactory for opening the condition of duplex cylinder compressor.
The control method of duplex cylinder compressor in air-conditioner according to embodiments of the present invention, by the operation mould for obtaining air-conditioner
Formula, and detect the temperature of outdoor heat exchanger in air-conditioner, the then temperature of the operational mode according to air-conditioner and outdoor heat exchanger
Judge whether to open duplex cylinder compressor and determine the mode of operation after duplex cylinder compressor unlatching, thus, frosting can either be prevented, and
Air-conditioner can be protected from damaging, air-conditioner safe and reliable operation is effectively ensured.
It is the control method of duplex cylinder compressor in the air-conditioner for realizing above-described embodiment, the present invention also proposes a kind of air-conditioner
The control device of middle duplex cylinder compressor.
As shown in figure 4, the control device of duplex cylinder compressor includes in the air-conditioner of the embodiment of the present invention：Acquisition module 10,
Detection module 20 and control module 30.
Wherein, acquisition module 10 is used to obtain the operational mode of air-conditioner；Detection module 20 is used for real-time detection air-conditioner
The temperature of middle outdoor heat exchanger is obtaining temperature detection value；Control module 30 is used to be examined according to the operational mode and temperature of air-conditioner
Measured value judges whether to open the mode of operation after duplex cylinder compressor and determination duplex cylinder compressor unlatching, wherein, duplex cylinder compressor is opened
Mode of operation after opening includes single cylinder mode of operation, twin-tub mode of operation and defrost mode of operation.
Wherein, the operational mode of air-conditioner includes heating mode and refrigeration mode.
In one embodiment of the invention, detection module 20 may include temperature sensor, and detection module 20 can be at interval of
The temperature of outdoor heat exchanger in Preset Time (such as 200ms) collection air-conditioner, to obtain temperature detection value.
In one embodiment of the invention, duplex cylinder compressor may include the first cylinder and the second cylinder.When twin-tub compression
When the mode of operation of machine is twin-tub mode of operation, its first cylinder and the second cylinder are opened, when the Working mould of duplex cylinder compressor
When formula is single cylinder mode of operation, its first cylinder is opened, the second cylinder is closed.Wherein, the capacity of the second cylinder is smaller than first
The capacity of cylinder.
In one embodiment of the invention, control module 30 can determine whether the variation tendency of temperature detection value.Specifically, may be used
Size to the temperature of the adjacent outdoor heat exchanger for collecting twice is compared, if the current outdoor heat exchanger for collecting
Temperature then can determine whether that temperature detection value is in ascendant trend more than the temperature of the last outdoor heat exchanger for collecting, if worked as
Before the temperature of the temperature of outdoor heat exchanger less than the last outdoor heat exchanger for collecting that collects, then can determine whether temperature detection
Value is in downward trend.
In one embodiment of the invention, when the operational mode of air-conditioner is that heating mode and temperature detection value are in down
During drop trend, whether control module 30 can determine whether temperature detection value less than the first temperature threshold A and more than or equal to second temperature threshold
Value B, wherein, the first temperature threshold A is more than second temperature threshold value B.
If temperature detection value is more than or equal to the first temperature threshold A, the temperature of outdoor heat exchanger is in relatively normal
State, control module 30 can allow duplex cylinder compressor to open operation with twin-tub mode of operation, to ensure that air-conditioner is carried out normally
Heat；If temperature detection value is less than the first temperature threshold A and more than or equal to second temperature threshold value B, the temperature of outdoor heat exchanger
Degree is relatively low, and control module 30 can allow duplex cylinder compressor to open operation with single cylinder mode of operation, so as to air-conditioner can either be ensured
Refrigerating operaton, the temperature that outdoor heat exchanger is prevented from again is too low；If temperature detection value is less than second temperature threshold value B,
The temperature of outdoor heat exchanger is too low, if proceeding heating operation, outdoor heat exchanger has the possibility of frosting, so if temperature
Detected value reaches very first time threshold value less than the duration of second temperature threshold value, then control module 30 can control air-conditioner and exit
Heating mode, and control duplex cylinder compressor to open operation with defrost mode of operation.In one embodiment of the invention, in twin-tub
Compressor is opened when running with defrost mode of operation, air-conditioner actual motion refrigeration mode, so that the temperature liter of outdoor heat exchanger
Height, the now sustainable unlatching of the second cylinder, the first cylinder can be opened after the time threshold of time delay the 3rd.
That is, as shown in Fig. 2 when the operational mode of air-conditioner is that heating mode and temperature detection value become in decline
During gesture, the first temperature threshold A can open operation as duplex cylinder compressor is judged with single cylinder mode of operation or twin-tub mode of operation
Critical condition, second temperature threshold value B can open fortune as duplex cylinder compressor is judged with single cylinder mode of operation or defrost mode of operation
Capable critical condition.
Further, when the operational mode of air-conditioner is heating mode and temperature detection value is in ascendant trend, control
Module 30 can determine whether whether temperature detection value is more than second temperature threshold value with the second difference sum B+D and less than or equal to the first temperature
Threshold value and the first difference sum A+C, wherein, the first difference C and the second difference D is all higher than being equal to zero.
If, less than second temperature threshold value and the second difference sum B+D, the temperature of outdoor heat exchanger is still for temperature detection value
So too low, control module 30 can continue control duplex cylinder compressor and be run with defrost mode of operation；If temperature detection value is more than the
Two temperature thresholds and the second difference sum B+D and examined less than or equal to the first temperature threshold and the first difference sum A+C, and temperature
Measured value is more than second temperature threshold value with the second difference sum B+D and less than or equal to the first temperature threshold and the first difference sum A+C
Duration reach the second time threshold, then the temperature of outdoor heat exchanger has been gone up, and control module 30 can allow twin-tub pressure
Contracting machine is opened with single cylinder mode of operation and run；If temperature detection value is more than the first temperature threshold and the first difference sum A+C,
The temperature of outdoor heat exchanger is increased to relatively normal state, and control module 30 can allow duplex cylinder compressor with twin-tub mode of operation
Open operation.
That is, as shown in Fig. 2 when the operational mode of air-conditioner is that heating mode and temperature detection value become in rising
During gesture, the first temperature threshold and the first difference sum A+C can be used as judging duplex cylinder compressor with single cylinder mode of operation or twin-tub work
Operation mode opens the critical condition of operation, second temperature threshold value and the second difference sum B+D can as judge duplex cylinder compressor with
Single cylinder mode of operation or defrost mode of operation open the critical condition of operation.First difference C and the second difference D cause temperature detection
Critical condition when critical condition when value is in ascendant trend is in downward trend with temperature detection value is slightly changed, and is becoming
In condition after change, second temperature threshold value and the second difference sum B+D be still less than the first temperature threshold and the first difference it
With A+C's.
In one embodiment of the invention, when the operational mode of air-conditioner is upper for refrigeration mode and temperature detection value are in
During the trend of liter, whether control module 30 can determine whether temperature detection value more than the 3rd temperature threshold B0 and less than or equal to the 4th temperature threshold
Value A0, wherein, the 3rd temperature threshold B0 is less than the 4th temperature threshold A0.
If temperature detection value is less than or equal to the 3rd temperature threshold B0, the temperature of outdoor heat exchanger is in relatively normal
State, control module 30 can allow duplex cylinder compressor to open operation with twin-tub mode of operation；If temperature detection value is more than the 3rd
Temperature threshold B0 and less than or equal to the 4th temperature threshold A0, then the temperature drift of outdoor heat exchanger, control module 30 can allow double
Cylinder compressor is opened with single cylinder mode of operation and run, so as to the refrigerating operaton of air-conditioner can either be ensured, outdoor is prevented from again
The temperature of heat exchanger is too high；If temperature detection value is more than the 4th temperature threshold, the temperature of outdoor heat exchanger is too high, controls mould
Block 30 can forbid duplex cylinder compressor open in case major structure into air-conditioner damage.
That is, as shown in figure 3, when the operational mode of air-conditioner is that refrigeration mode and temperature detection value become in rising
During gesture, the 3rd temperature threshold B0 can open operation as duplex cylinder compressor is judged with single cylinder mode of operation or twin-tub mode of operation
Critical condition, the 4th temperature threshold A0 can be used as the critical condition for determining whether unlatching duplex cylinder compressor.
Further, when the operational mode of air-conditioner is refrigeration mode and temperature detection value is in downward trend, control
Whether module 30 can determine whether temperature detection value less than the difference B0-D0 of the 3rd temperature threshold and the 3rd difference and warm more than or equal to the 4th
The difference A0-C0 of degree threshold value and the 4th difference, wherein, the 3rd difference D0 and the 4th difference C0 is all higher than being equal to zero.
If temperature detection value is more than or equal to the 3rd temperature threshold and the difference B0-D0 of the 3rd difference, outdoor heat exchanger
Temperature is still too high, and control module 30 can forbid duplex cylinder compressor to open；If temperature detection value less than the 3rd temperature threshold with
The difference B0-D0 of the 3rd difference and more than or equal to the 4th temperature threshold and the difference A0-C0 of the 4th difference, the then temperature of outdoor heat exchanger
It has been declined that, control module 30 can allow duplex cylinder compressor to open operation with single cylinder mode of operation；If temperature detection value is less than
The difference A0-C0 of the 4th temperature threshold and the 4th difference, then be down to relatively normal state at a temperature of outdoor heat exchanger, controls mould
Block 30 can allow duplex cylinder compressor to open operation with twin-tub mode of operation.
That is, as shown in figure 3, when the operational mode of air-conditioner is that refrigeration mode and temperature detection value become in decline
During gesture, the difference B0-D0 of the 3rd temperature threshold and the 3rd difference can be used as judging duplex cylinder compressor with single cylinder mode of operation or twin-tub
Mode of operation opens the critical condition of operation, and the difference A0-C0 of the 4th temperature threshold and the 4th difference can be used as determining whether
Open the critical condition of duplex cylinder compressor.When 3rd difference D0 and the 4th difference C0 cause temperature detection value in downward trend
Critical condition when critical condition and temperature detection value are in ascendant trend is slightly changed, and in condition after change, the 3rd
The difference B0-D0 of temperature threshold and the 3rd difference is so less than the difference A0-C0's of the 4th temperature threshold and the 4th difference.
It should be noted that the big I of first to fourth above-mentioned temperature threshold, first to fourth difference is according to outdoor
The temperature of heat exchanger sets to the actual influence of the operation of duplex cylinder compressor.
In addition, in one embodiment of the invention, can also have display on the control panel or remote control of air-conditioner
Screen, to show the running status or fault message etc. of air-conditioner.For example, when the operational mode of air-conditioner is refrigeration mode
And temperature detection value be in ascendant trend when, if temperature detection value be more than the 4th temperature threshold A0, can be carried by display screen
The temperature of awake user's current outdoor heat exchanger is too high, is unsatisfactory for opening the condition of duplex cylinder compressor.
The control device of duplex cylinder compressor, air-conditioner is obtained by acquisition module in air-conditioner according to embodiments of the present invention
Operational mode, and by detection module detect air-conditioner in outdoor heat exchanger temperature, then control module is according to air-conditioner
Operational mode and outdoor heat exchanger temperature judge whether open duplex cylinder compressor and determine duplex cylinder compressor open after work
Operation mode, thus, can either prevent frosting, can protect air-conditioner from damaging again, and the safe and reliable fortune of air-conditioner is effectively ensured
OK.
Correspondence above-described embodiment, the present invention also proposes a kind of air-conditioner.
The control of duplex cylinder compressor in the air-conditioner of the embodiment of the present invention, including the air-conditioner of the above embodiment of the present invention proposition
Device processed, its specific embodiment can refer to above-described embodiment.
Air-conditioner according to embodiments of the present invention, being capable of safe and reliable operation.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, is for only for ease of the description present invention and simplifies description, must rather than the device or element for indicating or imply meaning
With specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include one or more this feature.In the description of the invention, " multiple " is meant that two or more,
Unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or two interaction relationships of element.For the ordinary skill in the art, can be according to specific feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be with
It is the first and second feature directly contacts, or the first and second features are by intermediary mediate contact.And, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the invention or example.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be with office
Combined in an appropriate manner in one or more embodiments or example.Additionally, in the case of not conflicting, the skill of this area
Art personnel can be tied the feature of the different embodiments or example described in this specification and different embodiments or example
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (11)
1. in a kind of air-conditioner duplex cylinder compressor control method, it is characterised in that comprise the following steps：
Obtain the operational mode of the air-conditioner；
The temperature of outdoor heat exchanger is obtaining temperature detection value in air-conditioner described in real-time detection；
Operational mode and the temperature detection value according to the air-conditioner judge whether to open the duplex cylinder compressor and determination
Mode of operation after the duplex cylinder compressor unlatching, wherein, the mode of operation after the duplex cylinder compressor is opened includes single cylinder work
Operation mode, twin-tub mode of operation and defrost mode of operation.
2. in air-conditioner according to claim 1 duplex cylinder compressor control method, it is characterised in that according to the air-conditioning
The operational mode of device and the temperature detection value judge whether to open the duplex cylinder compressor and determine that the duplex cylinder compressor is opened
Mode of operation after opening, including：
When the operational mode of the air-conditioner is heating mode and the temperature detection value is in downward trend, the temperature is judged
Whether degree detected value is less than the first temperature threshold and more than or equal to second temperature threshold value, wherein, first temperature threshold is more than
The second temperature threshold value；
If the temperature detection value is more than or equal to first temperature threshold, the duplex cylinder compressor is allowed with the twin-tub
Mode of operation opens operation；
If the temperature detection value allows institute less than first temperature threshold and more than or equal to the second temperature threshold value
State duplex cylinder compressor and operation is opened with the single cylinder mode of operation；
If the temperature detection value is less than the second temperature threshold value, and the temperature detection value is less than the second temperature
The duration of threshold value reaches very first time threshold value, then control the air-conditioner to exit heating mode, and control the twin-tub pressure
Contracting machine is opened with the defrost mode of operation and run.
3. in air-conditioner according to claim 2 duplex cylinder compressor control method, it is characterised in that according to the air-conditioning
The operational mode of device and the temperature detection value judge whether to open the duplex cylinder compressor and determine that the duplex cylinder compressor is opened
Mode of operation after opening, including：
When the operational mode of the air-conditioner is heating mode and the temperature detection value is in ascendant trend, the temperature is judged
Whether degree detected value is more than the second temperature threshold value and the second difference sum and less than or equal to first temperature threshold and the
One difference sum, wherein, first difference and second difference are all higher than being equal to zero；
If the temperature detection value is less than the second temperature threshold value and the second difference sum, continue to control described pair
Cylinder compressor is run with the defrost mode of operation；
If the temperature detection value is more than the second temperature threshold value with the second difference sum and less than or equal to the described first temperature
Degree threshold value and the first difference sum, and the temperature detection value is more than the second temperature threshold value and the second difference sum and small
The second time threshold is reached in the duration equal to first temperature threshold and the first difference sum, then controls the twin-tub
Compressor exits the defrost mode of operation, and controls the duplex cylinder compressor to open operation with the single cylinder mode of operation；
If the temperature detection value is more than first temperature threshold and the first difference sum, the duplex cylinder compressor is allowed
Opened with the twin-tub mode of operation and run.
4. in air-conditioner according to claim 1 duplex cylinder compressor control method, it is characterised in that according to the air-conditioning
The operational mode of device and the temperature detection value judge whether to open the duplex cylinder compressor and determine that the duplex cylinder compressor is opened
Mode of operation after opening, including：
When the operational mode of the air-conditioner is refrigeration mode and the temperature detection value is in ascendant trend, the temperature is judged
Whether degree detected value is more than the 3rd temperature threshold and less than or equal to the 4th temperature threshold, wherein, the 3rd temperature threshold is less than
4th temperature threshold；
If the temperature detection value is less than or equal to the 3rd temperature threshold, the duplex cylinder compressor is allowed with the twin-tub
Mode of operation opens operation；
If the temperature detection value allows institute more than the 3rd temperature threshold and less than or equal to the 4th temperature threshold
State duplex cylinder compressor and operation is opened with the single cylinder mode of operation；
If the temperature detection value is more than the 4th temperature threshold, the duplex cylinder compressor is forbidden to open.
5. in air-conditioner according to claim 4 duplex cylinder compressor control method, it is characterised in that according to the air-conditioning
The operational mode of device and the temperature detection value judge whether to open the duplex cylinder compressor and determine that the duplex cylinder compressor is opened
Mode of operation after opening, including：
When the operational mode of the air-conditioner is refrigeration mode and the temperature detection value is in downward trend, the temperature is judged
Degree detected value whether less than the 3rd temperature threshold and the 3rd difference difference and more than or equal to the 4th temperature threshold and the
The difference of four differences, wherein, the 3rd difference is all higher than being equal to zero with the 4th difference；
If the temperature detection value is more than or equal to the 3rd temperature threshold and the difference of the 3rd difference, forbid described double
Cylinder compressor is opened；
If the temperature detection value less than the 3rd temperature threshold and the 3rd difference difference and more than or equal to described the
The difference of four temperature thresholds and the 4th difference, then allowed the duplex cylinder compressor to be opened with the single cylinder mode of operation and run；
If the temperature detection value allows the twin-tub pressure less than the 4th temperature threshold and the difference of the 4th difference
Contracting machine is opened with the twin-tub mode of operation and run.
6. in a kind of air-conditioner duplex cylinder compressor control device, it is characterised in that including：
Acquisition module, the acquisition module is used to obtain the operational mode of the air-conditioner；
Detection module, the detection module is used for the temperature of outdoor heat exchanger in air-conditioner described in real-time detection to obtain temperature inspection
Measured value；
Control module, the control module is used to be judged whether according to the operational mode and the temperature detection value of the air-conditioner
Open the duplex cylinder compressor and determine the mode of operation after the duplex cylinder compressor unlatching, wherein, the duplex cylinder compressor is opened
Mode of operation after opening includes single cylinder mode of operation, twin-tub mode of operation and defrost mode of operation.
7. in air-conditioner according to claim 6 duplex cylinder compressor control device, it is characterised in that the control module
For：
When the operational mode of the air-conditioner is heating mode and the temperature detection value is in downward trend, the temperature is judged
Whether degree detected value in the temperature detection value is more than or equal to institute less than the first temperature threshold and more than or equal to second temperature threshold value
When stating the first temperature threshold, it is allowed to which the duplex cylinder compressor is opened with the twin-tub mode of operation and run, and in temperature inspection
Measured value is less than first temperature threshold and during more than or equal to the second temperature threshold value, it is allowed to which the duplex cylinder compressor is with described
Single cylinder mode of operation opens operation, and is less than the second temperature threshold value in the temperature detection value, and the temperature is examined
When measured value reaches very first time threshold value less than the duration of the second temperature threshold value, control the air-conditioner to exit and heat mould
Formula, and control the duplex cylinder compressor to open operation with the defrost mode of operation, wherein, first temperature threshold is more than institute
State second temperature threshold value.
8. in air-conditioner according to claim 7 duplex cylinder compressor control device, it is characterised in that the control module
For：
When the operational mode of the air-conditioner is heating mode and the temperature detection value is in ascendant trend, the temperature is judged
Whether degree detected value is more than the second temperature threshold value and the second difference sum and less than or equal to first temperature threshold and the
One difference sum, when the temperature detection value is less than the second temperature threshold value with the second difference sum, continues to control
The duplex cylinder compressor is run with the defrost mode of operation, and the temperature detection value more than the second temperature threshold value with
Second difference sum and less than or equal to first temperature threshold and the first difference sum, and the temperature detection value is more than institute
State second temperature threshold value and the second difference sum and less than or equal to first temperature threshold and the first difference sum it is lasting when
Between when reaching the second time threshold, control the duplex cylinder compressor to exit the defrost mode of operation, and control the twin-tub pressure
Contracting machine is opened with the single cylinder mode of operation and run, and is more than first temperature threshold and first in the temperature detection value
During difference sum, it is allowed to which the duplex cylinder compressor is opened with the twin-tub mode of operation and run, wherein, first difference and institute
The second difference is stated to be all higher than being equal to zero.
9. in air-conditioner according to claim 6 duplex cylinder compressor control device, it is characterised in that the control module
For：
When the operational mode of the air-conditioner is refrigeration mode and the temperature detection value is in ascendant trend, the temperature is judged
Whether degree detected value in the temperature detection value is less than or equal to institute more than the 3rd temperature threshold and less than or equal to the 4th temperature threshold
When stating three temperature thresholds, it is allowed to which the duplex cylinder compressor is opened with the twin-tub mode of operation and run, and in temperature inspection
Measured value is more than the 3rd temperature threshold and during less than or equal to four temperature threshold, it is allowed to which the duplex cylinder compressor is with described
Single cylinder mode of operation opens operation, and when the temperature detection value is more than four temperature threshold, forbids the twin-tub
Compressor is opened, wherein, the 3rd temperature threshold is less than the 4th temperature threshold.
10. in air-conditioner according to claim 9 duplex cylinder compressor control device, it is characterised in that the control mould
Block is used for：
When the operational mode of the air-conditioner is refrigeration mode and the temperature detection value is in downward trend, the temperature is judged
Degree detected value whether less than the 3rd temperature threshold and the 3rd difference difference and more than or equal to the 4th temperature threshold and the
The difference of four differences, in difference of the temperature detection value more than or equal to the 3rd temperature threshold and the 3rd difference, forbids
The duplex cylinder compressor is opened, and the temperature detection value less than the difference of the 3rd temperature threshold and the 3rd difference and
More than or equal to the 4th temperature threshold and the 4th difference difference when, it is allowed to the duplex cylinder compressor is worked with the single cylinder
Pattern opens operation, and in difference of the temperature detection value less than the 4th temperature threshold and the 4th difference, permits
Perhaps described duplex cylinder compressor is opened with the twin-tub mode of operation and run, wherein, the 3rd difference is equal with the 4th difference
More than or equal to zero.
11. a kind of air-conditioners, it is characterised in that including twin-tub pressure in the air-conditioner according to any one of claim 6-10
The control device of contracting machine.
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| CN201710139020.0A CN106871367B (en) | 2017-03-09 | 2017-03-09 | Air conditioner and control method and device of double-cylinder compressor thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109186042A (en) * | 2018-09-20 | 2019-01-11 | 珠海格力电器股份有限公司 | Air-conditioner defrosting method |
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|---|---|---|---|---|
| EP1022466A2 (en) * | 1999-01-19 | 2000-07-26 | Carrier Corporation | Condition monitor for a refrigeration system compressor |
| CN101995110A (en) * | 2010-10-29 | 2011-03-30 | 广东美的电器股份有限公司 | Double-cylinder variable-capacity compressor air conditioning system and control method thereof |
| CN106403349A (en) * | 2016-11-25 | 2017-02-15 | 广东美的制冷设备有限公司 | Double-cylinder variable-capacity air conditioning system and control method |
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2017
- 2017-03-09 CN CN201710139020.0A patent/CN106871367B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1022466A2 (en) * | 1999-01-19 | 2000-07-26 | Carrier Corporation | Condition monitor for a refrigeration system compressor |
| CN101995110A (en) * | 2010-10-29 | 2011-03-30 | 广东美的电器股份有限公司 | Double-cylinder variable-capacity compressor air conditioning system and control method thereof |
| CN106403349A (en) * | 2016-11-25 | 2017-02-15 | 广东美的制冷设备有限公司 | Double-cylinder variable-capacity air conditioning system and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109186042A (en) * | 2018-09-20 | 2019-01-11 | 珠海格力电器股份有限公司 | Air-conditioner defrosting method |
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