CN116499096A - Air conditioner, control method thereof and computer readable storage medium - Google Patents

Air conditioner, control method thereof and computer readable storage medium Download PDF

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Publication number
CN116499096A
CN116499096A CN202210056910.6A CN202210056910A CN116499096A CN 116499096 A CN116499096 A CN 116499096A CN 202210056910 A CN202210056910 A CN 202210056910A CN 116499096 A CN116499096 A CN 116499096A
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China
Prior art keywords
rotating speed
air conditioner
target
compressor
value
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CN202210056910.6A
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Chinese (zh)
Inventor
王金锋
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Midea Group Co Ltd
GD Midea Air Conditioning Equipment Co Ltd
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Priority to CN202210056910.6A priority Critical patent/CN116499096A/en
Publication of CN116499096A publication Critical patent/CN116499096A/en
Pending legal-status Critical Current

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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
    • F24F11/70—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
    • 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
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The invention discloses a control method of an air conditioner, which comprises the following steps: when an indoor fan rotation speed adjusting instruction exists in the process that the air conditioner is in heating operation, determining the target frequency of a compressor of the air conditioner according to a target rotation speed value; the target rotating speed value is a target value which is required to be reached after the rotating speed of the indoor fan is regulated by the rotating speed regulating instruction; controlling the operation of the compressor according to the target frequency; and when the operation of the compressor reaches a preset condition, controlling the indoor fan to be adjusted to the target rotating speed value for operation. The invention also discloses an air conditioner and a computer readable storage medium. The invention aims to avoid frequent start and stop of the compressor, improve the running reliability of the compressor and improve the comfort of indoor users.

Description

Air conditioner, control method thereof and computer readable storage medium
Technical Field
The present invention relates to the field of air conditioning technologies, and in particular, to a control method of an air conditioner, and a computer readable storage medium.
Background
With the development of economic technology, air conditioners are increasingly used in daily life. At present, when an air conditioner receives a rotating speed adjusting signal of an indoor fan, the rotating speed of the fan is generally adjusted in real time, and then the operating frequency of a compressor is adjusted according to the frequency corresponding to the current wind gear after the rotating speed is adjusted.
However, when the air conditioner heats and operates, the indoor load is generally higher, the operation frequency of the compressor is higher, at this time, the instantaneous change of the rotating speed of the fan can cause the instantaneous change of the heat exchange capacity of the indoor fan, which easily causes abnormal protection of the compressor, causes frequent start and stop of the compressor, and easily affects the comfort of indoor users and the operation reliability of the compressor.
Disclosure of Invention
The invention mainly aims to provide a control method of an air conditioner, the air conditioner and a computer readable storage medium, and aims to avoid frequent start and stop of a compressor, improve the running reliability of the compressor and improve the comfort of indoor users.
In order to achieve the above object, the present invention provides a control method of an air conditioner, the control method of the air conditioner comprising the steps of:
when an indoor fan rotation speed adjusting instruction exists in the process that the air conditioner is in heating operation, determining the target frequency of a compressor of the air conditioner according to a target rotation speed value; the target rotating speed value is a target value which is required to be reached after the rotating speed of the indoor fan is regulated by the rotating speed regulating instruction;
controlling the operation of the compressor according to the target frequency;
and when the operation of the compressor reaches a preset condition, controlling the indoor fan to be adjusted to the target rotating speed value for operation.
Optionally, the control method of the air conditioner further includes:
when a rotating speed adjusting instruction of an indoor fan exists in the heating operation process of the air conditioner, acquiring a target rotating speed adjusting value, wherein the target rotating speed adjusting value is a target parameter which is required to be reached by rotating speed change when the indoor fan is adjusted from the current rotating speed to the target rotating speed value;
and when the target rotating speed adjusting value is larger than a preset rotating speed adjusting value, executing the step of determining the target frequency of the compressor of the air conditioner according to the target rotating speed value.
Optionally, the control method of the air conditioner further includes:
when a rotating speed adjusting instruction of an indoor fan exists in the heating operation process of the air conditioner, acquiring a target rotating speed adjusting value, wherein the target rotating speed adjusting value is a target parameter which is required to be reached by rotating speed change when the indoor fan is adjusted from the current rotating speed to the target rotating speed value;
when the target rotating speed adjusting value is larger than a preset rotating speed adjusting value, acquiring the current first temperature of the indoor heat exchanger;
and when the first temperature is greater than a first preset temperature, executing the determination of the target frequency of the compressor of the air conditioner according to the target rotating speed value.
Optionally, after the step of obtaining the target rotation speed adjustment value, the method further includes:
when the target rotating speed value is smaller than the preset rotating speed adjusting value, or when the first temperature is smaller than or equal to the first preset temperature, controlling the indoor fan to adjust to the target rotating speed value for operation;
and when the indoor fan runs at the target rotating speed value, controlling the compressor to run according to the target frequency.
Optionally, the control method of the air conditioner further includes:
acquiring the indoor environment temperature of the air conditioner acting space;
and determining the preset rotating speed adjusting value according to the indoor environment temperature.
Optionally, after the step of controlling the operation of the compressor according to the target frequency, the method further includes:
and when the duration of the operation of the compressor is controlled to reach a preset duration according to the target frequency, determining that the operation of the compressor reaches the preset condition.
Optionally, after the step of controlling the operation of the compressor according to the target frequency, the method further includes:
acquiring the current second temperature of the indoor heat exchanger;
and when the second temperature is smaller than a second preset temperature, determining that the operation of the compressor reaches the preset condition.
Optionally, after the step of obtaining the current second temperature of the indoor heat exchanger, the method further includes:
and when the second temperature is greater than or equal to the second preset temperature, controlling the compressor to perform down-conversion operation, and returning to the step of acquiring the current second temperature of the indoor heat exchanger.
In addition, in order to achieve the above object, the present application also proposes an air conditioner including:
a compressor;
an indoor fan;
the control device, the compressor with indoor fan all with controlling means is connected, controlling means includes: the control method comprises the steps of a memory, a processor and a control program of an air conditioner, wherein the control program of the air conditioner is stored in the memory and can run on the processor, and the control program of the air conditioner is executed by the processor to realize the control method of the air conditioner.
In addition, in order to achieve the above object, the present application further proposes a computer-readable storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, implements the steps of the control method of an air conditioner as set forth in any one of the above.
When the air conditioner is in heating operation, the method regulates the frequency of the compressor based on the target rotating speed required to be reached after the indoor fan is regulated, and further regulates the rotating speed of the indoor fan to the target rotating speed, and the rotating speed of the indoor fan is not regulated in real time after an indoor fan rotating speed regulating instruction is received in the process, but is further improved after the frequency regulation of the compressor is delayed, so that the heat exchange capacity of the regulated rotating speed of the indoor fan is matched with the operating frequency of the compressor, abnormal protection of the compressor can be effectively avoided, frequent starting and stopping of the compressor are avoided, indoor environment temperature fluctuation is avoided, the operation reliability of the compressor is improved, and meanwhile, the indoor user comfort is improved.
Drawings
FIG. 1 is a schematic diagram of a hardware configuration involved in the operation of an embodiment of an air conditioner according to the present invention;
FIG. 2 is a flow chart of an embodiment of a control method of an air conditioner according to the present invention;
FIG. 3 is a flow chart of another embodiment of a control method of an air conditioner according to the present invention;
fig. 4 is a flowchart illustrating a control method of an air conditioner according to another embodiment of the present invention.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The main solutions of the embodiments of the present invention are: when an indoor fan rotation speed adjusting instruction exists in the process that the air conditioner is in heating operation, determining the target frequency of a compressor of the air conditioner according to a target rotation speed value; the target rotating speed value is a target value which is required to be reached after the rotating speed of the indoor fan is regulated by the rotating speed regulating instruction; controlling the operation of the compressor according to the target frequency; and when the operation of the compressor reaches a preset condition, controlling the indoor fan to be adjusted to the target rotating speed value for operation.
In the prior art, when the air conditioner heats and operates, the indoor load is generally higher, the operation frequency of the compressor is higher, and at the moment, the instantaneous change of the rotating speed of the fan can cause the instantaneous change of the heat exchange capacity of the indoor fan, so that the compressor is easy to be abnormally protected, the compressor is frequently started and stopped, and the indoor user comfort and the operation reliability of the compressor are easy to be influenced.
The invention provides the solution, and aims to avoid frequent start and stop of the compressor, improve the running reliability of the compressor and improve the comfort of indoor users.
The embodiment of the invention provides an air conditioner. The air conditioner may be a wall-mounted air conditioner, a cabinet air conditioner, a ceiling air conditioner, a mobile air conditioner, a window air conditioner, or the like.
In this embodiment, referring to fig. 1, the air conditioner includes a refrigerant circulation system and a control device 1, the refrigerant circulation system includes a connected compressor 2, an indoor heat exchanger, a throttling device, and an outdoor heat exchanger, and the indoor heat exchanger is correspondingly provided with an indoor fan 3.
The compressor 2 and the indoor fan 3 are connected with the control device 1, and the control device 1 can be used for controlling the operation of the compressor 2 and the indoor fan 3.
In an embodiment of the present invention, referring to fig. 1, a control device 1 of an air conditioner includes: a processor 1001 (e.g., CPU), a memory 1002, a timer 1003, and the like. The memory 1002 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1002 may alternatively be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the device structure shown in fig. 1 is not limiting of the device and may include more or fewer components than shown, or may be combined with certain components, or a different arrangement of components.
As shown in fig. 1, a control program of an air conditioner may be included in a memory 1002 as a computer-readable storage medium. In the apparatus shown in fig. 1, a processor 1001 may be used to call a control program of an air conditioner stored in a memory 1002 and perform the relevant step operations of the control method of the air conditioner of the following embodiment.
The embodiment of the invention also provides a control method of the air conditioner, which is applied to control the air conditioner.
Referring to fig. 2, an embodiment of a control method of the air conditioner of the present application is provided. In this embodiment, the control method of the air conditioner includes:
step S10, when a rotating speed adjusting instruction of an indoor fan exists in the process that the air conditioner is in heating operation, determining the target frequency of a compressor of the air conditioner according to a target rotating speed value; the target rotating speed value is a target value which is required to be reached after the rotating speed of the indoor fan is regulated by the rotating speed regulating instruction;
the rotation speed adjusting instruction is specifically an instruction for controlling the indoor fan to adjust the running rotation speed. The rotating speed adjusting instruction can be input by a user based on the self requirement, and can also be automatically generated by the air conditioner based on the detection condition of the current working condition.
When a rotation speed adjusting instruction of the indoor fan exists, the current rotation speed of the indoor fan is indicated to be increased or decreased. In this embodiment, the rotation speed adjustment instruction is a deceleration instruction of the indoor fan; in other embodiments, the rotation speed adjustment command may also be an up-speed command of the indoor fan.
Specifically, the rotation speed adjustment instruction may include a rotation speed adjustment range of a current rotation speed of the indoor fan or a target rotation speed value to which the current rotation speed of the indoor fan needs to be adjusted. Based on this, the target rotational speed value here may be determined in accordance with the rotational speed adjustment instruction.
The target frequency is specifically a frequency for regulating and controlling the frequency of the compressor. In this embodiment, the target frequency is the maximum frequency at which the compressor is allowed to operate. In other embodiments, the target frequency may also be a frequency value for the desired operation of the compressor.
Different target rotational speed values correspond to different target frequencies. Specifically, the target frequency and the target rotation speed value may be positively correlated, and the target frequency tends to increase with an increase in the target rotation speed value, and the target frequency tends to decrease with a decrease in the target rotation speed value. The corresponding relation between the target rotation speed value and the target frequency can be preset, and can be a mapping relation, a calculation formula and the like. The result obtained by matching the mapping table can be inquired as a target frequency based on the target rotating speed value; the target frequency can also be calculated by substituting the target rotation speed value into a preset formula.
Step S20, controlling the operation of the compressor according to the target frequency;
in this embodiment, the target frequency is the maximum frequency allowed by the current frequency of the compressor, and when the current frequency of the compressor exceeds the target frequency in the operation process of the compressor controlled according to the target frequency, the compressor is controlled to operate at the target frequency, and when the current frequency of the compressor is smaller than the target frequency, the compressor is controlled to maintain the current frequency. In other embodiments, the target frequency may also be a frequency value of the desired operation of the compressor, and controlling the operation of the compressor in accordance with the target frequency may be controlling the compressor to adjust to operate at the target frequency.
And in the process of controlling the operation of the compressor according to the target frequency, the indoor fan maintains the current rotation speed to operate.
And step S30, when the operation of the compressor reaches a preset condition, controlling the indoor fan to be adjusted to the target rotating speed value for operation.
The preset condition is specifically an operation condition (such as an operation time length and/or a heat exchanger temperature) which is required to be reached when the preset operation control of the compressor is performed at the target frequency and the operation speed of the indoor fan is allowed to be adjusted to the target speed value.
When the operation of the compressor reaches a preset condition, the current operation frequency of the compressor is matched with the heat exchange capacity corresponding to the target rotating speed value, and the indoor fan is controlled to be adjusted from the current rotating speed to the target rotating speed value to operate; when the operation of the compressor does not reach the preset condition, the current operation frequency of the compressor is not matched with the heat exchange capacity corresponding to the target rotating speed value, and at the moment, the operation of the compressor is controlled according to the target frequency and the indoor fan is controlled to maintain the current rotating speed.
When the air conditioner is in heating operation, the method adjusts the frequency of the compressor based on the target rotating speed which is needed to be achieved after the indoor fan is adjusted, and further adjusts the rotating speed of the indoor fan to the target rotating speed, the rotating speed of the indoor fan is not adjusted in real time after an indoor fan rotating speed adjusting instruction is received in the process, and the time delay is further improved after the frequency adjustment of the compressor, so that the heat exchange capacity of the adjusted rotating speed of the indoor fan is matched with the operating frequency of the compressor, abnormal protection of the compressor can be effectively avoided, frequent starting and stopping of the compressor is avoided, indoor environment temperature fluctuation is avoided, the operation reliability of the compressor is improved, and meanwhile indoor user comfort is improved.
Further, in an implementation manner of the foregoing embodiment, after step S20, when the duration of the operation of the compressor is controlled according to the target frequency to reach a preset duration, it is determined that the operation of the compressor reaches the preset condition. The preset time length is specifically a parameter determined according to the model of the air conditioner, and different models correspond to different preset time lengths. Starting timing when the compressor is started to be controlled to run according to the target frequency, wherein the timing time is longer than or equal to the preset time length, and the compression running can be determined to reach the preset condition; and when the timing time is less than the preset time, determining that the operation of the compressor does not reach the preset condition. Based on the method, the indoor fan can be further adjusted to the target rotating speed value when the system is regulated and controlled to reach the stable operating state for a long time by the target frequency, and the abnormal protection caused by overload operation of the compressor in the rotating speed adjustment process of the indoor fan can be avoided, so that the operation reliability of the compressor is effectively improved, and the comfort of indoor users is improved.
Further, in another implementation manner of the foregoing embodiment, after step S20, the method may further include: acquiring the current second temperature of the indoor heat exchanger; when the second temperature is smaller than a second preset temperature, determining that the operation of the compressor reaches the preset condition; and when the second temperature is greater than or equal to the second preset temperature, determining that the operation of the compressor does not reach the preset condition, controlling the down-conversion operation of the compressor, and returning to the step of acquiring the current second temperature of the indoor heat exchanger.
The second preset temperature is specifically a preset temperature value of the maximum indoor heat exchanger allowed by normal operation of the compressor when the indoor fan is at the target rotating speed value. The second preset temperature may be a preset fixed parameter, or may be a temperature parameter determined according to a target rotation speed value and/or a current frequency of the compressor, where different target rotation speed values and/or current frequencies correspond to different second preset temperatures.
When the second temperature is smaller than the second preset temperature, the current compressor operation frequency is not excessively high, so that the current compressor operation is determined to reach the preset condition, the indoor fan is adjusted to the target rotation speed value for operation, when the second temperature is larger than or equal to the second preset temperature, the current compressor operation frequency is excessively high, whether the second temperature is smaller than the second preset temperature is judged again after the compressor frequency is reduced, and on the basis, the rotation speed of the indoor fan can be adjusted when the compressor frequency is sufficiently low, so that the compressor cannot be stopped due to excessively high load after the indoor fan is adjusted to the target rotation speed value, and the operation reliability and user comfort of the compressor are further improved.
In other embodiments, when the second temperature is greater than or equal to the second preset temperature, the step of obtaining the current second temperature of the indoor heat exchanger may be performed after increasing the operating speed of the outdoor fan.
Further, in still another implementation manner of the foregoing embodiment, the current second temperature of the indoor heat exchanger may be obtained when the duration of operation of the compressor is controlled according to the target frequency to reach a preset duration; when the second temperature is smaller than a second preset temperature, determining that the operation of the compressor reaches the preset condition; and when the second temperature is greater than or equal to the second preset temperature, determining that the operation of the compressor does not reach the preset condition, controlling the down-conversion operation of the compressor, and returning to the step of acquiring the current second temperature of the indoor heat exchanger. Based on the method, the accuracy of reliability risk identification after the frequency adjustment of the compressor can be further improved, so that the rotating speed of the indoor fan can be accurately and timely adjusted to a target rotating speed value, and meanwhile, the running reliability of the compressor is improved.
Further, based on the above embodiment, another embodiment of the control method of the air conditioner of the present application is provided. In this embodiment, referring to fig. 3, the control method of the air conditioner further includes:
step S11, when a rotating speed adjusting instruction of an indoor fan exists in the heating operation process of the air conditioner, acquiring a target rotating speed adjusting value, wherein the target rotating speed adjusting value is a target parameter which is required to be reached by rotating speed change when the indoor fan is adjusted from the current rotating speed to the target rotating speed value;
in this embodiment, the target rotation speed adjustment value is a deviation amount of a difference between the target rotation speed value and the current rotation speed of the indoor fan. In other embodiments, the target rotational speed adjustment value may also be a rotational speed adjustment rate that the indoor fan needs to achieve to adjust from the current rotational speed to the target rotational speed value.
And step S12, when the target rotating speed adjusting value is larger than a preset rotating speed adjusting value, executing the step of determining the target frequency of the compressor of the air conditioner according to the target rotating speed value.
The preset rotation speed adjustment value may be a preset fixed parameter, or may be a parameter determined according to an actual operation condition (such as an indoor environment temperature and/or an outdoor environment temperature) of the air conditioner.
In this embodiment, the indoor environment temperature of the air conditioner working space may be obtained; and determining the preset rotating speed adjusting value according to the indoor environment temperature. Different indoor environment temperatures correspond to different preset rotation speed adjustment values, and the preset rotation speed adjustment values and the indoor environment temperatures can be in negative correlation. The preset rotating speed regulating value is in a decreasing trend along with the increase of the indoor environment temperature, and the preset rotating speed regulating value is in an increasing trend along with the decrease of the indoor environment temperature. The preset rotating speed adjusting value is determined through the indoor environment temperature, so that the comparison between the preset rotating speed adjusting value and the target rotating speed adjusting value can be ensured, the risk of the reliability problem of the compressor can be accurately identified, and the running reliability of the compressor is improved by timely adjusting the frequency of the compressor and then adjusting the rotating speed of the indoor fan when the risk is identified.
In this embodiment, when the target rotation speed adjustment value is greater than the preset rotation speed adjustment value, it indicates that the load of the indoor unit has a larger change in the process of adjusting the rotation speed of the indoor fan, and at this time, the abnormal protection shutdown risk of the compressor is easy to occur when the rotation speed of the indoor fan is adjusted.
Further, based on any one of the above embodiments, a further embodiment of a control method of the air conditioner is provided. In this embodiment, referring to fig. 4, the control method of the air conditioner may further include:
step S101, when a rotating speed adjusting instruction of an indoor fan exists in the heating operation process of the air conditioner, acquiring a target rotating speed adjusting value, wherein the target rotating speed adjusting value is a target parameter which is required to be reached by rotating speed change when the indoor fan is adjusted from the current rotating speed to the target rotating speed value;
in this embodiment, the target rotation speed adjustment value is a deviation amount of a difference between the target rotation speed value and the current rotation speed of the indoor fan. In other embodiments, the target rotational speed adjustment value may also be a rotational speed adjustment rate that the indoor fan needs to achieve to adjust from the current rotational speed to the target rotational speed value.
Step S102, when the target rotation speed adjustment value is larger than a preset rotation speed adjustment value, acquiring the current first temperature of the indoor heat exchanger;
the first temperature can be obtained by reading data detected by a temperature sensor on the indoor heat exchanger in real time.
The preset rotation speed adjustment value may be a preset fixed parameter, or may be a parameter determined according to an actual operation condition (such as an indoor environment temperature and/or an outdoor environment temperature) of the air conditioner.
In this embodiment, the indoor environment temperature of the air conditioner working space may be obtained; and determining the preset rotating speed adjusting value according to the indoor environment temperature. Different indoor environment temperatures correspond to different preset rotation speed adjustment values, and the preset rotation speed adjustment values and the indoor environment temperatures can be in negative correlation. The preset rotating speed regulating value is in a decreasing trend along with the increase of the indoor environment temperature, and the preset rotating speed regulating value is in an increasing trend along with the decrease of the indoor environment temperature. The preset rotating speed adjusting value is determined through the indoor environment temperature, so that the comparison between the preset rotating speed adjusting value and the target rotating speed adjusting value can be ensured, the risk of the reliability problem of the compressor can be accurately identified, and the running reliability of the compressor is improved by timely adjusting the frequency of the compressor and then adjusting the rotating speed of the indoor fan when the risk is identified.
And step S103, when the first temperature is larger than a first preset temperature, the step S103 is executed to determine the target frequency of the compressor of the air conditioner according to the target rotating speed value.
The first preset temperature may be a preset fixed temperature, or may be a temperature determined according to an actual operation condition (e.g., an indoor environment temperature) of the air conditioner.
In this embodiment, when the target rotation speed adjustment value of the indoor fan is too high, whether the indoor unit is in a high-load state can be accurately identified through comparison between the first temperature and the first preset temperature, wherein when the first temperature is higher than the first preset temperature, the indoor unit is indicated to be in the high-load state currently, and if the rotation speed of the indoor fan is adjusted directly, overload fluctuation is easy to occur, therefore, the rotation speed of the indoor fan is adjusted to a required target rotation speed value after the compressor is controlled to operate according to the target frequency at this time, abnormal protection shutdown of the compressor due to overload fluctuation in the rotation speed adjustment process of the indoor fan is guaranteed, and therefore effective improvement of reliability of the compressor is achieved, and meanwhile comfort of indoor users is improved.
Further, in the above embodiment, after the step of obtaining the target rotation speed adjustment value, the method further includes: when the target rotating speed value is smaller than the preset rotating speed modulation value, or when the first temperature is smaller than or equal to the first preset temperature, controlling the indoor fan to adjust to the target rotating speed value for operation; and when the indoor fan runs at the target rotating speed value, controlling the compressor to run according to the target frequency.
In this embodiment, when the target rotation speed value is smaller than the preset rotation speed adjustment value, it indicates that the load of the indoor unit does not substantially fluctuate during the rotation speed adjustment of the indoor fan, and when the current first temperature of the indoor heat exchanger is smaller than or equal to the first preset temperature, it indicates that the indoor unit is not in a high load state, and when the rotation speed of the indoor fan is directly adjusted to the target rotation speed value, abnormal protection risks of the compressor cannot occur, at this moment, the rotation speed of the indoor fan is adjusted to the target rotation speed value, and then the frequency of the compressor is further adjusted to the target frequency matched with the target rotation speed value, so that the air outlet of the indoor unit can be quickly adjusted to meet the user comfort requirement, the air speed adjustment can be quickly responded, and the effective improvement of the user comfort is realized.
In order to better understand the technical solutions in the related embodiments of the air conditioner control method, the following describes the technical solutions with a specific application:
I. when the indoor unit receives a signal of the decrease of the rotation speed of the indoor unit (namely the rotation speed adjustment command), the target rotation speed variation (namely the target rotation speed adjustment value) is judged, if the target rotation speed variation is more than 40 (namely the preset rotation speed adjustment value), the step II is started, otherwise, the indoor unit is adjusted according to a conventional mode, when the rotation speed variation is large, the load variation is large, the threshold value of the variation is not a fixed value, and the threshold value is 40 in the example.
II. Judging the current indoor evaporator coil temperature T2 (namely the first temperature), if T2 is more than K1 (namely the first preset temperature), representing that the current load is higher, directly adjusting the rotating speed of the inner fan at the moment is easy to overload fluctuation, therefore, when T2 is more than K1, entering a step III, otherwise, adjusting according to a conventional mode, determining K1 according to different models, and taking K1=46 in the example.
III, adjusting the frequency of the compressor to the upper limit frequency Fn of the wind gear corresponding to the target rotating speed (namely the target frequency), entering the step IV after 30s (namely the preset time length), wherein the adjusting time (namely the preset time length) is not fixed, and determining according to different models, wherein the adjusting time is 30s.
IV, adjusting the rotating speed of the indoor fan to the target rotating speed.
Wherein, the conventional mode is: and adjusting the rotating speed of the indoor fan in real time, and adjusting the frequency of the compressor according to the wind gear frequency limiting frequency corresponding to the current wind gear after adjustment.
In step III, after adjusting the compressor frequency to Fn, a determination may be made according to whether the current T2 value (i.e. the second temperature) falls to a certain level, for example: and after the compressor is subjected to frequency reduction for a period of time, whether the current T2 value is reduced to a certain threshold value (namely the second preset temperature) or not, if so, the rotating speed of the inner fan is adjusted to a target rotating speed value, and if not, the compressor continues to be subjected to frequency reduction until the T2 value is reduced to the corresponding threshold value.
In addition, the embodiment of the invention also provides a computer readable storage medium, wherein the computer readable storage medium stores a control program of the air conditioner, and the control program of the air conditioner realizes the relevant steps of any embodiment of the control method of the air conditioner when being executed by a processor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) as described above, comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (10)

1. The control method of the air conditioner is characterized by comprising the following steps of:
when an indoor fan rotation speed adjusting instruction exists in the heating operation process of the air conditioner, determining the target frequency of a compressor of the air conditioner according to a target rotation speed value, wherein the target rotation speed value is a target value which is required to be reached after the rotation speed adjusting instruction requires the rotation speed adjustment of the indoor fan;
controlling the operation of the compressor according to the target frequency;
and when the operation of the compressor reaches a preset condition, controlling the indoor fan to be adjusted to the target rotating speed value for operation.
2. The control method of an air conditioner as set forth in claim 1, wherein the control method of an air conditioner further includes:
when a rotating speed adjusting instruction of an indoor fan exists in the heating operation process of the air conditioner, acquiring a target rotating speed adjusting value, wherein the target rotating speed adjusting value is a target parameter which is required to be reached by rotating speed change when the indoor fan is adjusted from the current rotating speed to the target rotating speed value;
and when the target rotating speed adjusting value is larger than a preset rotating speed adjusting value, executing the step of determining the target frequency of the compressor of the air conditioner according to the target rotating speed value.
3. The control method of an air conditioner as set forth in claim 1, wherein the control method of an air conditioner further includes:
when a rotating speed adjusting instruction of an indoor fan exists in the heating operation process of the air conditioner, acquiring a target rotating speed adjusting value, wherein the target rotating speed adjusting value is a target parameter which is required to be reached by rotating speed change when the indoor fan is adjusted from the current rotating speed to the target rotating speed value;
when the target rotating speed adjusting value is larger than a preset rotating speed adjusting value, acquiring the current first temperature of the indoor heat exchanger;
and when the first temperature is greater than a first preset temperature, executing the determination of the target frequency of the compressor of the air conditioner according to the target rotating speed value.
4. The method for controlling an air conditioner as claimed in claim 3, further comprising, after the step of obtaining the target rotation speed adjustment value:
when the target rotating speed value is smaller than the preset rotating speed adjusting value, or when the first temperature is smaller than or equal to the first preset temperature, controlling the indoor fan to adjust to the target rotating speed value for operation;
and when the indoor fan runs at the target rotating speed value, controlling the compressor to run according to the target frequency.
5. The control method of an air conditioner as set forth in claim 3, wherein the control method of an air conditioner further includes:
acquiring the indoor environment temperature of the air conditioner acting space;
and determining the preset rotating speed adjusting value according to the indoor environment temperature.
6. The control method of an air conditioner according to any one of claims 1 to 5, further comprising, after the step of controlling the operation of the compressor according to the target frequency:
and when the duration of the operation of the compressor is controlled to reach a preset duration according to the target frequency, determining that the operation of the compressor reaches the preset condition.
7. The control method of an air conditioner according to any one of claims 1 to 5, further comprising, after the step of controlling the operation of the compressor according to the target frequency:
acquiring the current second temperature of the indoor heat exchanger;
and when the second temperature is smaller than a second preset temperature, determining that the operation of the compressor reaches the preset condition.
8. The method of controlling an air conditioner as set forth in claim 7, wherein after the step of obtaining the current second temperature of the indoor heat exchanger, further comprising:
and when the second temperature is greater than or equal to the second preset temperature, controlling the compressor to perform down-conversion operation, and returning to the step of acquiring the current second temperature of the indoor heat exchanger.
9. An air conditioner, characterized in that the air conditioner comprises:
a compressor;
an indoor fan;
the control device, the compressor with indoor fan all with controlling means is connected, controlling means includes: a memory, a processor, and a control program of an air conditioner stored on the memory and operable on the processor, which when executed by the processor, realizes the steps of the control method of an air conditioner according to any one of claims 1 to 8.
10. A computer-readable storage medium, wherein a control program of an air conditioner is stored on the computer-readable storage medium, which when executed by a processor, implements the steps of the control method of an air conditioner according to any one of claims 1 to 8.
CN202210056910.6A 2022-01-18 2022-01-18 Air conditioner, control method thereof and computer readable storage medium Pending CN116499096A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210056910.6A CN116499096A (en) 2022-01-18 2022-01-18 Air conditioner, control method thereof and computer readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210056910.6A CN116499096A (en) 2022-01-18 2022-01-18 Air conditioner, control method thereof and computer readable storage medium

Publications (1)

Publication Number Publication Date
CN116499096A true CN116499096A (en) 2023-07-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN116499096A (en)

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