CN109323383A - Convertible frequency air-conditioner is in the control method of special mounting environment, control device and air conditioner - Google Patents
Convertible frequency air-conditioner is in the control method of special mounting environment, control device and air conditioner Download PDFInfo
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- CN109323383A CN109323383A CN201811060092.7A CN201811060092A CN109323383A CN 109323383 A CN109323383 A CN 109323383A CN 201811060092 A CN201811060092 A CN 201811060092A CN 109323383 A CN109323383 A CN 109323383A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
Abstract
The present invention provides a kind of convertible frequency air-conditioner special mounting environment control method, when including the following steps: to record the booting of air conditioner refrigeration mode with compressor start for a period of time after outdoor environment temperature and outdoor condenser coil temperature；By the amplitude of variation of outdoor environment temperature and the outdoor condenser coil temperature amplitude of variation, it is determined whether to enable refrigeration Special controlling modes；Refrigeration Special controlling mode is opened, including the frequency reducing protection to the compressor；It is protected with the frequency reducing whether occurred in addition to the refrigeration Special controlling mode to determine whether exiting the refrigeration Special controlling mode by the amplitude of variation of outdoor environment temperature.A kind of control method of the convertible frequency air-conditioner of the present invention in special mounting environment, judge the running environment of air-conditioner outdoor unit, and open refrigeration Special controlling mode, ensure that the reliability of air-conditioning, the fluctuation of compressor frequency is avoided, while improving the stable operation frequency of compressor.
Description
Technical field
The present invention relates to air conditioner technical field, in particular to controlling party of a kind of convertible frequency air-conditioner in special mounting environment
Method, control device and air conditioner.
Background technique
Convertible frequency air-conditioner is under some special installation environments when refrigerating operaton, such as under the poor shutter environment that radiates,
With the operation of air-conditioner outdoor unit, the temperature in shutter is gradually risen, and the frequency in compressor is with the temperature in shutter
Change and change, predominantly ambient temperature frequency limit control causes.Under such as above-mentioned special mounting environment, air conditioner is excellent
The first highest protection point of grade is external disk protection and exhaust protection, and external disk protection and exhaust are protected with serious hysteresis characteristic,
It easily leads to compressor frequency and generates significantly frequent fluctuation, or even occur protecting not in time, and compressor shutdown phenomenon occur,
It causes air conditioner can not work normally, influences user's normal use.
Summary of the invention
In view of this, the present invention is directed to propose a kind of control method of convertible frequency air-conditioner in special mounting environment, control device
And air conditioner, the running environment of air-conditioner outdoor unit is determined by the variation of outdoor environment temperature, then pass through outdoor coil temperature
Amplitude of variation further confirms that, effectively prevent the generation of erroneous judgement, when judging that air-conditioner outdoor unit is under special installation environment, control
Air-conditioning processed enters special mounting environment control method, can guarantee the reliability of air-conditioning, and improves the stable operation frequency of compressor
Rate.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of control method of convertible frequency air-conditioner in special mounting environment, comprising:
Refrigeration mode booting detects and records outdoor environment temperature T when air conditioner refrigeration mode is switched onOuter ring 0It is cold with outdoor
Condenser coils temperature TExternal disk 0, run conventional refrigerant frequency control model, the room after real-time detection and the starting of recording compressed machine
External environment temperature TOuter ring 1With the outdoor condenser coil temperature TExternal disk 1；
As the first amplitude of variation △ T of the outdoor environment temperature1Greater than the first preset temperature T1, while the outdoor is cold
Second amplitude of variation △ T of condenser coils temperature2Greater than the second preset temperature T2, while TExternal disk 1Greater than third preset temperature T3When
Refrigeration Special controlling mode is opened, otherwise carries out the control of conventional refrigerant frequency, wherein △ T1=TOuter ring 1-TOuter ring 0, △ T2=TExternal disk 1-
TExternal disk 0；
Into the refrigeration Special controlling mode, external disk antioverloading protection value is modified, it is synchronous to improve the anti-mistake of external disk
It carries protection and prohibits the frequent rate temperature value of ascending, descending, raising frequency rate temperature value is prohibited after promotion and is lower than former frequency reducing frequency temperature value, while to compression
Unit frequency is controlled, and compressor is carried out raising frequency by predetermined raising frequency rate, and frequency reducing rate is executed by normal speed；
Into after the refrigeration Special controlling mode, real-time detection simultaneously records the outdoor environment temperature TOuter ring 2, when described
The third amplitude of variation △ T of outdoor environment temperature3Less than the 4th preset temperature T4And the duration is greater than preset time t1, or
When there is the frequency reducing protection in addition to the refrigeration Special controlling mode, exits refrigeration Special controlling mode and return to the routine
Refrigeration frequency control model, otherwise continues Special controlling mode of freezing, wherein △ T3=TOuter ring 2-TOuter ring 0。
Further, the first preset temperature T1For the constant of 0-20.
Further, the second preset temperature T2For greater than the first preset temperature T1Constant, the third is default
Temperature T3For greater than the second preset temperature T2Constant.
Further, the 4th preset temperature T4For constant, and the 4th preset temperature T4Less than first preset temperature
T1, the t1=60s.
Further, the predetermined raising frequency rate is 1Hz/60s.
Further, the method controlled compressor frequency includes:
FFreeze special pattern=FCurrently* A, coefficient A is constant in formula；Or
FFreeze special pattern=FCurrently- B, B is constant in formula, and 0 < B < 30；
In formula, FCurrentlyThe predeterminated frequency of compressor, F when for the normal refrigeration modeFreeze special patternFor the special control of refrigeration
Frequency after scheme control processed.
Further, the coefficient A is greater than 0.5 and less than 1.
Further, the frequency reducing protection in addition to the refrigeration Special controlling mode includes: to protect to prohibit except external disk antioverloading
It rises, other frequency reducings protection outside exhaust protection.
Further, control device of a kind of convertible frequency air-conditioner in special mounting environment, comprising:
Detection module, for detecting outdoor environment temperature and outdoor condenser coil temperature；
Control module judges the outdoor environment temperature for receiving and recording the temperature of the temperature sensor detection
Amplitude of variation and the amplitude of variation of the outdoor condenser coil temperature whether meet first condition or second condition, judgement is
The no frequency reducing protection having in addition to the refrigeration Special controlling mode, and control unlatching or exit refrigeration Special controlling mode；
Processing module, it is synchronous to improve the protection taboo ascending, descending of external disk antioverloading for being modified to external disk antioverloading protection value
Frequent rate temperature value prohibits raising frequency rate temperature value and is lower than former frequency reducing frequency temperature value, while controlling to compressor frequency after promotion
System, and compressor raising frequency rate is executed by predetermined raising frequency rate, frequency reducing rate is executed by normal speed.
Further, a kind of air conditioner, including convertible frequency air-conditioner described above special mounting environment control device.
Compared with the existing technology, a kind of convertible frequency air-conditioner of the present invention special mounting environment control method have with
Lower advantage:
(1) a kind of convertible frequency air-conditioner of the present invention is in the control method of special mounting environment, control device and air conditioner,
By the variation of outdoor environment temperature, the running environment of air-conditioner outdoor unit is determined, judge whether to enter refrigeration Special controlling mode,
Auxiliary judgment is carried out by the amplitude of variation of outdoor coil temperature again, prevents erroneous judgement behavior.
(2) a kind of convertible frequency air-conditioner of the present invention is in the control method of special mounting environment, control device and air conditioner,
In refrigeration Special controlling mode, compressor raising frequency is executed into super slow raising frequency rate 1Hz/60s, while protecting to external disk antioverloading
Value is modified, synchronous to improve the external disk antioverloading protection taboo frequent rate temperature value of ascending, descending, and it is low to prohibit raising frequency rate temperature value after being promoted
In former frequency reducing frequency temperature value, the reliability of air-conditioning ensure that, avoid the fluctuation of compressor frequency, while improving compressor
Stable operation frequency.
(3) a kind of convertible frequency air-conditioner of the present invention is in the control method of special mounting environment, control device and air conditioner,
Using the situation of change of outdoor environment after compressor start, the running environment of air-conditioner outdoor unit is identified, then pass through outdoor condensation
The amplitude of variation secondary-confirmation running environment of device coil temperature, while operation at that time is identified with outdoor condenser coil temperature
Operating condition, when judging that running environment is severe, outdoor unit is immediately performed particular surroundings control method, otherwise executes conventional refrigerant.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is control method flow chart of the convertible frequency air-conditioner described in the embodiment of the present invention in special mounting environment；
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Need to illustrate when, the outer ring in the present embodiment refers to outdoor environment, and external disk refers to outdoor condenser coil.
Embodiment 1
As shown in Figure 1, a kind of control method of convertible frequency air-conditioner in special mounting environment, specific implementation step are as follows:
S1, refrigeration mode booting, outdoor environment temperature and outdoor condenser pan when record air conditioner refrigeration mode is switched on
Tube temperature degree；
When booting 0S, the outdoor environment temperature of primary control program real-time reception outer ring temperature sensor monitoring, and recording compressed
Machine starts outdoor environment temperature T when 0SOuter ring 0；The outdoor coil pipe used temperature of primary control program real-time reception external disk temperature sensor monitoring
Degree, and the outdoor condenser coil temperature T in outdoor when recording compressed machine starting 0SExternal disk 0。
After S2, refrigeration mode booting, into conventional refrigerant frequency control model；
S3, outdoor environment temperature and outdoor condenser after booting a period of time, after recording compressed machine unlatching a period of time
Coil temperature.
Compressor start operation, the outdoor environment temperature of primary control program real-time reception outer ring temperature sensor monitoring, and remember
Outdoor environment temperature T after recording compressor startOuter ring 1；The outdoor condensation of primary control program real-time reception external disk temperature sensor monitoring
Device coil temperature, and the outdoor condenser coil temperature T after the starting of recording compressed machineExternal disk 1。
S4, the first amplitude of variation △ T by outdoor environment temperature1, and the second change of outdoor condenser coil temperature
Change amplitude △ T2To determine whether entering refrigeration Special controlling mode, the first amplitude of variation △ T1=TOuter ring 1-TOuter ring 0, the second variation
Amplitude △ T2=TExternal disk 1-TExternal disk 0, when meeting following three conditions simultaneously, air conditioner enters refrigeration Special controlling mode:
One: the first amplitude of variation △ T of condition1Greater than the first preset temperature T1, the first preset temperature T in formula1For the normal of 0-20
Number；
Two: the second amplitude of variation △ T of condition2Greater than the second preset temperature T2, the second preset temperature T in formula2For constant, and
Second preset temperature T2The first preset temperature of > T1；
Condition three: the outdoor condenser coil temperature T after compressor startExternal disk 1Greater than third preset temperature T3, third in formula
Preset temperature T3For constant, and third preset temperature T3The second preset temperature of > T2。
S5, into refrigeration Special controlling mode: external disk antioverloading protection value is modified, it is synchronous to improve external disk antioverloading
The frequent rate temperature value of ascending, descending is prohibited in protection, and raising frequency rate temperature value is prohibited after promotion and is lower than former frequency reducing frequency temperature value；Simultaneously to compressor
Frequency is controlled, and compressor raising frequency rate is executed by predetermined raising frequency rate, and frequency reducing rate is executed by normal speed.
1) after entering refrigeration Special controlling mode, external disk antioverloading protection value is modified, it is synchronous to improve the anti-mistake of external disk
It carries protection and prohibits the frequent rate temperature value of ascending, descending, and prohibit raising frequency rate temperature value after being promoted and be lower than former frequency reducing frequency temperature value.
2) refrigeration Special controlling mode compression unit frequency control mode has following two scheme:
Scheme one: FFreeze special pattern=FCurrently* A, A is coefficient and 0.5 < A < 1 in formula；
Scheme two: FFreeze special pattern=FCurrently- B, B is constant, 0 < B < 30 in formula；
In above two scheme, " FCurrently" be conventional refrigerant frequency control model when compressor predeterminated frequency；FFreeze special pattern
For the compressor frequency after refrigeration Special controlling scheme control, and FFreeze special pattern> FCL, wherein FCL is under air conditioner refrigeration mode
The low-limit frequency of compressor.
3) after entering refrigeration Special controlling mode, compressor raising frequency rate is executed by predetermined raising frequency rate, predetermined raising frequency speed
Rate is 1HZ/ 60s, frequency reducing rate are executed by normal speed.
S6, into refrigeration Special controlling mode after, real-time detection simultaneously records outdoor environment temperature TOuter ring 2, refresh weather in real time
Relative humidity.Pass through the third amplitude of variation △ T of outdoor environment temperature3Whether less than the 4th preset temperature T4, and whether continue
Time is greater than preset time t1, or frequency reducing protection of the appearance in addition to the refrigeration Special controlling mode is to determine whether exit
Refrigeration Special controlling mode, wherein △ T3=TOuter ring 2-TOuter ring 0。
When meeting following either condition, then refrigeration Special controlling mode is exited:
Condition one: TOuter ring 2-TOuter ring 0< T3, and continue 60s or more, T in formula3For constant, and T3< T0；
: there is the frequency reducing protection in addition to the refrigeration Special controlling mode in condition two, such as occurs protecting except external disk antioverloading
Other frequency reducings protection outside shield, exhaust protection.
After exiting refrigeration Special controlling mode, air conditioner returns to step S2 and carries out the control of conventional refrigerant frequency, lays equal stress on
New return step S3 is judged, until air conditioner is closed.
Embodiment 2
On the basis of the above embodiments, the control for providing a kind of convertible frequency air-conditioner in special mounting environment fills the present embodiment
It sets, including detection module, control module and processing module, above-mentioned control device can be realized convertible frequency air-conditioner in special mounting environment
Control method.
Detection module is mainly for detection of outdoor environment temperature and outdoor condenser coil temperature.
Control module is mainly used for receiving and recording the temperature of the temperature sensor detection, judges the outdoor environment temperature
Whether the amplitude of variation of degree and the amplitude of variation of the outdoor condenser coil temperature meet first condition or second condition, judge
Whether there is the frequency reducing protection in addition to the refrigeration Special controlling mode, and controls unlatching or exit refrigeration Special controlling mode.
Processing module is mainly used for being modified external disk antioverloading protection value, synchronous to improve external disk antioverloading protection taboo
Ascending, descending frequent rate temperature value prohibits raising frequency rate temperature value and is lower than former frequency reducing frequency temperature value after promotion, at the same to compressor frequency into
Row control, and compressor raising frequency rate is executed by predetermined raising frequency rate, frequency reducing rate is executed by normal speed.
Embodiment 3
The present embodiment on the basis of the above embodiments, provides a kind of air conditioner, including convertible frequency air-conditioner as described in example 2
In the control device of special mounting environment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of convertible frequency air-conditioner is in the control method of special mounting environment characterized by comprising
Refrigeration mode booting detects and records outdoor environment temperature T when air conditioner refrigeration mode is switched onOuter ring 0With outdoor condenser
Coil temperature TExternal disk 0, run conventional refrigerant frequency control model, the outdoor ring after real-time detection and the starting of recording compressed machine
Border temperature TOuter ring 1With the outdoor condenser coil temperature TExternal disk 1；
As the first amplitude of variation △ T of the outdoor environment temperature1Greater than the first preset temperature T1, while the outdoor condenser
Second amplitude of variation △ T of coil temperature2Greater than the second preset temperature T2, while TExternal disk 1Greater than third preset temperature T3Shi Kaiqi
Refrigeration Special controlling mode, otherwise carries out the control of conventional refrigerant frequency, wherein △ T1=TOuter ring 1-TOuter ring 0, △ T2=TExternal disk 1-TExternal disk 0；
Into the refrigeration Special controlling mode, external disk antioverloading protection value is modified, the synchronous external disk antioverloading that improves is protected
Shield prohibits the frequent rate temperature value of ascending, descending, and raising frequency rate temperature value is prohibited after promotion and is lower than former frequency reducing frequency temperature value, while to compressor frequency
Rate is controlled, and compressor is carried out raising frequency by predetermined raising frequency rate, and frequency reducing rate is executed by normal speed；
Into after the refrigeration Special controlling mode, real-time detection simultaneously records the outdoor environment temperature TOuter ring 2, when the outdoor ring
The third amplitude of variation △ T of border temperature3Less than the 4th preset temperature T4And the duration is greater than preset time t1, or remove
When frequency reducing except the refrigeration Special controlling mode is protected, exits refrigeration Special controlling mode and return to the conventional refrigerant frequency
Otherwise rate control model continues Special controlling mode of freezing, wherein △ T3=TOuter ring 2-TOuter ring 0。
2. convertible frequency air-conditioner according to claim 1 is in the control method of special mounting environment, which is characterized in that described first
Preset temperature T1For the constant of 0-20.
3. convertible frequency air-conditioner according to claim 2 is in the control method of special mounting environment, which is characterized in that described second
Preset temperature T2For greater than the first preset temperature T1Constant, the third preset temperature T3It is default greater than described second
Temperature T2Constant.
4. convertible frequency air-conditioner according to claim 2 is in the control method of special mounting environment, which is characterized in that the described 4th
Preset temperature T4For constant, and the 4th preset temperature T4Less than the first preset temperature T1, the t1=60s.
5. convertible frequency air-conditioner according to claim 1 is in the control method of special mounting environment, which is characterized in that described predetermined
Raising frequency rate is 1Hz/60s.
6. convertible frequency air-conditioner according to claim 5 is in the control method of special mounting environment, which is characterized in that compressor
The method that frequency is controlled includes:
FFreeze special pattern=FCurrently* A, coefficient A is constant in formula；Or
FFreeze special pattern=FCurrently- B, B is constant in formula, and 0 < B < 30；
In formula, FCurrentlyThe predeterminated frequency of compressor, F when for the normal refrigeration modeFreeze special patternFor the refrigeration Special controlling mould
Frequency after formula control.
7. convertible frequency air-conditioner according to claim 6 is in the control method of special mounting environment, which is characterized in that the coefficient
A is greater than 0.5 and less than 1.
8. convertible frequency air-conditioner according to claim 1 is in the control method of special mounting environment, which is characterized in that remove the system
Frequency reducing protection except cold Special controlling mode includes: except external disk antioverloading protects other frequency reducings in addition to prohibiting liter, exhaust protection to protect
Shield.
9. a kind of convertible frequency air-conditioner is in the control device of special mounting environment characterized by comprising
Detection module, for detecting outdoor environment temperature and outdoor condenser coil temperature；
Control module judges the change of the outdoor environment temperature for receiving and recording the temperature of the temperature sensor detection
Whether change amplitude and the amplitude of variation of the outdoor condenser coil temperature meet first condition or second condition, judge whether there is
Frequency reducing protection in addition to the refrigeration Special controlling mode, and control unlatching or exit refrigeration Special controlling mode；
Processing module, for being modified to external disk antioverloading protection value, the synchronous external disk antioverloading that improves protects taboo ascending, descending frequent
Rate temperature value prohibits raising frequency rate temperature value and is lower than former frequency reducing frequency temperature value, while controlling compressor frequency after promotion, and
Compressor raising frequency rate is executed by predetermined raising frequency rate, frequency reducing rate is executed by normal speed.
10. a kind of air conditioner, including convertible frequency air-conditioner as claimed in claim 9 special mounting environment control device.
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| CN201811060092.7A CN109323383B (en) | 2018-09-12 | 2018-09-12 | Control method and control device of variable frequency air conditioner in special installation environment and air conditioner |
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Cited By (8)
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| CN110030688A (en) * | 2019-03-21 | 2019-07-19 | 青岛海尔空调器有限总公司 | The control method and control device of air conditioner |
| CN110397985A (en) * | 2019-07-26 | 2019-11-01 | 宁波奥克斯电气股份有限公司 | A kind of air conditioner and its control method |
| CN110595015A (en) * | 2019-09-25 | 2019-12-20 | 珠海格力电器股份有限公司 | Adjusting method and device of frequency conversion equipment |
| CN111271834A (en) * | 2019-05-28 | 2020-06-12 | 宁波奥克斯电气股份有限公司 | Frequency reduction control method of air conditioner and air conditioner |
| CN111380185A (en) * | 2020-03-27 | 2020-07-07 | 广东美的制冷设备有限公司 | Compressor exhaust temperature frequency limiting control method, air conditioner and readable storage medium |
| CN111457544A (en) * | 2020-04-20 | 2020-07-28 | 宁波奥克斯电气股份有限公司 | Air conditioner operation method and air conditioner |
| CN115164354A (en) * | 2022-07-08 | 2022-10-11 | 宁波奥克斯电气股份有限公司 | Frequency reduction protection control method and device, air conditioner and storage medium |
| CN115200163A (en) * | 2022-07-07 | 2022-10-18 | 宁波奥克斯电气股份有限公司 | Air conditioner control method and device and air conditioner |
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