CN115076908A - Air conditioner defrosting control method and device, air conditioner and electronic equipment - Google Patents
Air conditioner defrosting control method and device, air conditioner and electronic equipment Download PDFInfo
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- CN115076908A CN115076908A CN202210612430.3A CN202210612430A CN115076908A CN 115076908 A CN115076908 A CN 115076908A CN 202210612430 A CN202210612430 A CN 202210612430A CN 115076908 A CN115076908 A CN 115076908A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/42—Defrosting; Preventing freezing of outdoor units
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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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
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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
- F24F11/64—Electronic processing using pre-stored data
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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
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Abstract
The invention provides an air conditioner defrosting control method and device, an air conditioner and electronic equipment, wherein the method comprises the following steps: acquiring the temperature of a defrosting sensor, and determining that the air conditioner meets defrosting conditions under the condition that the temperature of the defrosting sensor is greater than the condensation point temperature and less than a first preset temperature value; when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state, controlling the blades of the indoor unit to stop rotating and adjusting the rotating speed of the blades of the outdoor unit to be within a target rotating speed; increasing an operating frequency of the compressor based on the condensation point temperature and the defrost sensor temperature; and controlling a first three-way valve to connect the condenser with the evaporator through a resistance expansion valve, and controlling a second three-way valve to connect the heating device with the compressor to form a first loop for defrosting the air conditioner. The invention can avoid the influence on the air conditioning heat effect caused by the stop of the rotation of the blades of the indoor unit and the reduction of the rotating speed of the blades of the outdoor unit by increasing the operating frequency of the compressor, thereby improving the use effect and the use experience of the air conditioner.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner defrosting control method and device, an air conditioner and electronic equipment.
Background
The defrosting control logic of the air conditioner at present is as follows: under the condition that the air conditioner heats, because outdoor environment temperature is lower, in the heating process, the outdoor unit condenser can produce the comdenstion water, and the comdenstion water frosts easily under the low temperature condition, under the condition of long-time operation, can become to freeze from frosting, still can freeze on the chassis and deposit water, causes the heating effect to worsen, needs the air conditioner to get into the defrosting procedure this moment, prevents that the off-premises station from freezing.
The existing defrosting program is to stop the fan of the indoor unit, the four-way valve of the outdoor unit is changed to a refrigerating state, a refrigerant in a high-temperature and high-pressure state of the compressor in the refrigerating state directly enters the condenser, the condenser is heated and defrosted, and meanwhile, in order not to influence the user experience, the indoor unit is prevented from blowing out cold air, so that the fan of the indoor unit stops, the room can be cooled, and if the air conditioner effect is poor, the defrosting program is frequently entered, and the user experience of the air conditioner is greatly influenced.
Disclosure of Invention
The invention provides an air conditioner defrosting control method and device, an air conditioner and electronic equipment, which are used for overcoming the defect that the air conditioner is poor in using effect when the air conditioner enters a defrosting program in the prior art and improving the effect of the air conditioner after the air conditioner enters the defrosting program.
The invention provides an air conditioner defrosting control method, which comprises the following steps:
acquiring the temperature of a defrosting sensor, and determining that the air conditioner meets defrosting conditions under the condition that the temperature of the defrosting sensor is greater than the condensation point temperature and less than a first preset temperature value;
when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state, controlling the blades of the indoor unit to stop rotating and adjusting the rotating speed of the blades of the outdoor unit to be within a target rotating speed;
increasing an operating frequency of a compressor based on the condensation point temperature and the defrost sensor temperature;
controlling a first three-way valve to connect the condenser with the evaporator through a resistance expansion valve, and controlling a second three-way valve to connect the heating device with the compressor to form a first loop for defrosting the air conditioner;
in the first loop, the circulation path of the refrigerant is the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor.
The defrosting control method of the air conditioner provided by the invention further comprises the following steps:
after the defrosting of the air conditioner is determined to be finished, controlling the first three-way valve to connect the heating device with the condenser, and controlling the second three-way valve to connect the evaporator with the compressor to form a second loop;
and under the second loop, the circulation path of the refrigerant is the compressor, the evaporator, the electronic expansion valve, the solar heating device, the condenser and the compressor.
The defrosting control method of the air conditioner provided by the invention further comprises the following steps:
and under the condition that the temperature of the outdoor heat exchanger is continuously greater than a second preset temperature value within a preset time length or the working time of the air conditioner in the defrosting state reaches a preset time threshold value, determining that the defrosting of the air conditioner is finished.
The defrosting control method of the air conditioner provided by the invention further comprises the following steps:
and when the air conditioner meets the defrosting condition and the air conditioner operates in a refrigerating state, adjusting the valve opening of the electronic expansion valve based on the condensation point temperature and the defrosting sensor temperature.
According to the air conditioner defrosting control method provided by the invention, the adjusting the valve opening degree of the electronic expansion valve based on the condensation point temperature and the defrosting sensor temperature comprises the following steps:
determining a temperature difference between the dew point temperature and the defrost sensor temperature;
multiplying the temperature difference value by a first set coefficient value and then taking a positive integer to obtain an opening increasing value of the electronic expansion valve;
and controlling the electronic expansion valve to increase the valve opening degree based on the opening degree increase value.
The present invention also provides an air conditioner defrosting control device, comprising:
the defrosting control module is used for acquiring the temperature of a defrosting sensor, and determining that the air conditioner meets a defrosting condition under the condition that the temperature of the defrosting sensor is higher than the condensation point temperature and lower than a first preset temperature value;
the first control module is used for controlling the blades of the indoor unit to stop rotating and regulating the rotating speed of the blades of the outdoor unit to be within a target rotating speed when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state;
a second control module for increasing the operating frequency of the compressor based on the condensation point temperature and the defrost sensor temperature;
the third control module is used for controlling the first three-way valve to connect the condenser with the evaporator through the resistance expansion valve and controlling the second three-way valve to connect the heating device with the compressor to form a first loop for defrosting the air conditioner;
in the first loop, the circulation path of the refrigerant is the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor.
The invention also provides an air conditioner which comprises the air conditioner defrosting control device.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein when the processor executes the program, the air conditioner defrosting control method is realized.
The present invention also provides a non-transitory computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements any of the air conditioner defrost control methods described above.
The invention also provides a computer program product comprising a computer program, wherein the computer program is used for realizing the air conditioner defrosting control method when being executed by a processor.
According to the air conditioner defrosting control method and device, the air conditioner and the electronic equipment, whether the air conditioner meets the defrosting condition or not is judged by obtaining the temperature of the defrosting sensor, if the air conditioner meets the defrosting condition, the air conditioner can control the blades of the indoor unit to stop rotating and adjust the rotating speed of the blades of the outdoor unit to be within the target rotating speed in the running and refrigerating state of the air conditioner; at the moment, the air conditioner increases the running frequency of the compressor based on the condensation point temperature and the defrosting sensor temperature, avoids the influence on the air conditioning heat effect caused by the fact that the indoor unit fan blades stop rotating and the rotating speed of the outdoor unit fan blades is reduced, improves the compressor frequency and the rotating speed of the outdoor unit fan blades after the air conditioner meets the defrosting condition, is used for rapidly defrosting, can save defrosting time and reduce energy loss, and therefore the using effect and the using experience of the air conditioner are improved.
Drawings
In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic flow chart of an air conditioner defrosting control method provided by the invention;
fig. 2 is a schematic structural view of the inside of an air conditioner provided by the present invention;
FIG. 3 is a second schematic flow chart of the defrosting control method for an air conditioner according to the present invention;
FIG. 4 is a schematic structural diagram of an air conditioner defrosting control device provided by the present invention;
fig. 5 is a schematic structural diagram of an electronic device provided in the present invention.
Reference numerals:
210: a compressor; 220: a four-way valve; 230: a condenser; 240: a first three-way valve; 250: a second three-way valve; 260: a heating device; 270: an electronic expansion valve; 280: an evaporator; 400: an air conditioner defrosting control device; 410: a determination module; 420: a first control module; 430: a second control module; 440: a third control module; 510: a processor; 520: a communication interface; 530: a memory; 540: a communication bus.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes the air conditioner defrosting control method, device, air conditioner and electronic equipment in combination with fig. 1-5.
As shown in fig. 1, the present invention provides a defrosting control method for an air conditioner, including:
and 110, acquiring the temperature of a defrosting sensor, and determining that the air conditioner meets defrosting conditions under the condition that the temperature of the defrosting sensor is greater than the condensation point temperature and less than a first preset temperature value.
It is understood that the defrost sensor may be disposed in the condenser, and the first preset temperature value may be selected according to the actual environment, and may be 3 degrees celsius, for example. The defrosting control method for the air conditioner provided by the invention is applied to the internal structure of the air conditioner as shown in fig. 2, wherein a compressor 210, a four-way valve 220, a condenser 230, a first three-way valve 240, a second three-way valve 250, a heating device 260, an electronic expansion valve 270 and an evaporator 280 are linked through pipelines.
And 120, controlling the blades of the indoor unit to stop rotating and adjusting the rotating speed of the blades of the outdoor unit to be within a target rotating speed when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state.
It can be understood that after the air conditioner meets the defrosting condition, the refrigeration operation is switched, the indoor fan blades stop rotating to ensure that no cold air is blown into the room, and the outdoor fan blades reduce the rotating speed by 200 revolutions to start defrosting.
And step 130, increasing the operating frequency of the compressor based on the condensation point temperature and the defrosting sensor temperature.
It is understood that step 130 is performed based on the condensation point temperature and the defrost sensor temperature in case the air conditioner satisfies the defrost condition; the compressor increases the frequency under normal operation to prevent the heating effect in the room from being affected.
It will be appreciated that the heating device of the present invention is a solar heating device. Heating device is in operating condition all the time, when detecting that the user opens the refrigeration operation, AC passageway is opened to first three-way valve, and the DE passageway is opened to the second three-way valve, forms first return circuit promptly. At the moment, the refrigerant circularly flows through the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor, the low-temperature and low-pressure refrigerant coming out of the evaporator is heated, the temperature of the refrigerant is improved, the gas-liquid two-phase refrigerant in a saturated state can be changed into a gaseous refrigerant through absorbing solar heat, the liquid refrigerant is prevented from occurring, the liquid impact phenomenon of the refrigerant on the compressor can be effectively prevented, the compressor is protected, meanwhile, the efficiency of the compressor is improved, and the energy consumption of the compressor is reduced. And when the shutdown of the user is detected, the compressor is closed, and meanwhile, the second three-way valve recovers the DF passage.
In some embodiments, the air conditioner defrosting control method further includes:
after the defrosting of the air conditioner is determined to be finished, controlling the first three-way valve to connect the heating device with the condenser, and controlling the second three-way valve to connect the evaporator with the compressor to form a second loop;
and under the second loop, the circulation path of the refrigerant is the compressor, the evaporator, the electronic expansion valve, the solar heating device, the condenser and the compressor.
It can be understood that, when the detection user opens the air conditioner heating operation, the AB channel is opened by controlling the first three-way valve, the DF channel is opened by controlling the second three-way valve, at this time, the refrigerant passes through the compressor, the evaporator, the electronic expansion valve, the solar heating device, the condenser and the circulating flow of the compressor, the low-temperature and low-pressure refrigerant which is throttled by the electronic expansion valve is heated, the gas-liquid two-phase refrigerant in the saturated state can be changed into a gaseous refrigerant by absorbing the solar heat, the temperature of the refrigerant is increased, the heat exchange efficiency of the condenser can be increased after entering the condenser, the efficiency of the compressor is increased, and the energy consumption of the compressor is reduced. And when the user is detected to control the air conditioner to be shut down, the compressor is closed, and the AC access is recovered through the first three-way valve.
In some embodiments, the air conditioner defrosting control method further includes: and under the condition that the temperature of the outdoor heat exchanger is continuously greater than a second preset temperature value within a preset time length or the working time of the air conditioner in the defrosting state reaches a preset time threshold value, determining that the defrosting of the air conditioner is finished.
It can be understood that the control manner for controlling the air conditioner to exit the defrosting state is as follows: when any one of the following three conditions is met, the air conditioner is restored to heating operation from the defrosting state, the AB and DF passages (namely the second loop) are restored to operation, defrosting is stopped, the opening degree of the electronic expansion valve is restored to the normal operation state (note: the condition of the external coil pipe is judged after defrosting operation is carried out for 1 minute)
Condition 1: the temperature of the outdoor heat exchanger is continuously over 5 ℃ for 60 seconds.
Condition 2: the temperature of the outdoor heat exchanger is continuously over 10 ℃ for 20 seconds.
Condition 3: the air conditioner enters a defrosting state to reach the maximum defrosting time tim, the maximum defrosting time tim is determined based on the defrosting interval time in the complete defrosting process, and the maximum defrosting time tim meets the following requirements: and tim ═ 0.25T-2, and tim ═ 12 minutes to quit defrosting. And T is the defrosting interval time in the complete defrosting process.
And after defrosting is started, the defrosting can be quitted after a preset minimum running time of 1 minute is ensured.
The interval time between two defrosters is determined as follows: the outdoor environment temperature is set to be a T ring, and under the condition that the temperature is lower, in order to ensure the effect of using the air conditioner by a user, the maximum defrosting time interval is increased in the following mode:
t ring is more than or equal to 2 ℃ and less than 5 ℃, and the maximum defrosting interval is 60 minutes (the accumulated running time of a press).
T ring is more than or equal to-7 ℃ and less than-2 ℃, and the maximum defrosting interval is 90 minutes (the accumulated running time of a press).
T-Ring < -7 ℃, maximum defrost interval 150 minutes (press cumulative run time).
In some embodiments, the air conditioner defrosting control method further includes:
and when the air conditioner meets the defrosting condition and the air conditioner operates in a refrigerating state, adjusting the valve opening of the electronic expansion valve based on the condensation point temperature and the defrosting sensor temperature.
It can be understood that, after the air conditioner meets the defrosting condition, the air conditioner switches the cooling operation, the indoor fan blade stops rotating to ensure that no cold air is blown into the room, the outdoor fan blade reduces the rotation speed by 200 revolutions to start defrosting, the air conditioner operates according to the AB and DE passages, the opening degree of the electronic expansion valve is increased, meanwhile, the frequency of the compressor is increased under the normal operation condition to prevent the heating effect in the room from being influenced, the increased frequency is judged according to the frosting degree, specifically, 2 (Tes-Te) is the minimum positive integer multiple, for example, 2 (Tes-Te) is 0.6, 1HZ is increased, 2 (Tes-Te) is 1.6, 2HZ is increased, 2 (Tes-Te) is 2.6, 1HZ is increased, and the maximum is not more than 95HZ for protecting the compressor. In order to ensure the user experience of the indoor unit, the protection of the compressor current, the compressor air discharge and the like is effective during defrosting. During defrosting, due to protection or fault shutdown, the compressor still enters defrosting operation after being restarted, the operation of the compressor is still limited by the oil return platform, and the shutdown time does not account for the defrosting time.
In some embodiments, said adjusting a valve opening of said electronic expansion valve based on said condensation point temperature and said defrost sensor temperature comprises:
determining a temperature difference between the dew point temperature and the defrost sensor temperature;
multiplying the temperature difference value by a first set coefficient value and then taking a positive integer to obtain an opening increasing value of the electronic expansion valve;
and controlling the electronic expansion valve to increase the valve opening degree based on the opening degree increase value.
It is understood that the opening degree of the electronic expansion valve is increased by a positive integer of 100 × Te (e.g., 100 × Te-Te is 60, and 100 × Te-Te is 150, up to 480.
In another embodiment, the defrosting method of the air conditioner provided by the invention is shown in fig. 3: whether the air conditioner meets the defrosting condition is judged, after the defrosting condition is met, the frequency of the compressor is improved, the running state is improved, the rotating speed of the fan is improved, meanwhile, the opening degree of the electronic expansion valve is improved, the electronic expansion valve is used for defrosting quickly, defrosting time can be saved, energy loss is reduced, meanwhile, according to the working condition and the running condition, the running three-way valve channel is changed 30 minutes before the next defrosting is started, and the air conditioner is preheated by the solar heating device in advance.
The defrost logic of the present invention is as follows:
under the air conditioner operation state of heating, keep AB route, DF route, get into the defrosting state when satisfying the defrosting condition, specifically do: when the compressor is in an operating state, the following arbitrary conditions are met for 2 minutes continuously by detecting the defrosting sensor Te and the outdoor ambient temperature sensor Tao, and the frosting condition is considered to be met:
frosting conditions are as follows: setting the condensation point temperature Tes as C multiplied by Tao-alpha and Te less than or equal to Tes; wherein: tao < 0 deg.C, 0.8% C, Tao ≧ 0 deg.C, 0.6% C, and the α value is generally 6.
According to the formula, when the temperature of the defrosting sensor is greater than the condensation point temperature and greater than 3 degrees, the condenser is judged not to frost, when the temperature of the defrosting sensor is greater than the condensation point temperature and less than 3 degrees, the condenser is judged to have a frosting risk, the passage is changed at the moment, the DE passage runs according to the AC passage and the DE passage and is used for heating the heating device, when the temperature of the defrosting sensor is less than or equal to the condensation point temperature, the condenser is judged to frost at the moment, and a defrosting program needs to be entered for more than 2 minutes continuously to start defrosting.
In summary, the defrosting control method for an air conditioner provided by the present invention includes: acquiring the temperature of a defrosting sensor, and determining that an air conditioner meets defrosting conditions under the condition that the temperature of the defrosting sensor is greater than the condensation point temperature and less than a first preset temperature value; when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state, controlling blades of an indoor unit to stop rotating and adjusting the rotating speed of blades of an outdoor unit to be within a target rotating speed; increasing an operating frequency of a compressor based on the condensation point temperature and the defrost sensor temperature; controlling a first three-way valve to connect the condenser with the evaporator through a resistance expansion valve, and controlling a second three-way valve to connect the heating device with the compressor to form a first loop for defrosting the air conditioner; in the first loop, the circulation path of the refrigerant is the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor.
According to the air conditioner defrosting control method, whether the air conditioner meets the defrosting condition or not is judged by obtaining the temperature of the defrosting sensor, if the air conditioner meets the defrosting condition, the air conditioner can control the blades of the indoor unit to stop rotating and adjust the rotating speed of the blades of the outdoor unit to be within the target rotating speed in the running and refrigerating state of the air conditioner; at the moment, the air conditioner increases the operating frequency of the compressor based on the condensation point temperature and the defrosting sensor temperature, so that the influence on the air conditioning heat effect caused by the fact that the indoor unit fan blades stop rotating and the rotating speed of the outdoor unit fan blades is reduced is avoided, and after the air conditioner meets the defrosting condition, the compressor frequency and the rotating speed of the outdoor unit fan blades are improved to quickly defrost, so that the defrosting time can be saved, and the energy loss is reduced, therefore, the using effect and the using experience of the air conditioner are improved.
The following describes the air conditioner defrosting control device provided by the present invention, and the air conditioner defrosting control device described below and the air conditioner defrosting control method described above can be referred to correspondingly.
As shown in fig. 4, the present invention also provides an air conditioner defrosting control apparatus 400, including: a determination module 410, a first control module 420, a second control module 430, and a third control module 440.
The determining module 410 is configured to obtain a temperature of a defrosting sensor, and determine that the air conditioner meets a defrosting condition when the temperature of the defrosting sensor is greater than a condensation point temperature and less than a first preset temperature value;
the first control module 420 is configured to control indoor unit blades to stop rotating and adjust the rotating speed of outdoor unit blades to within a target rotating speed when the air conditioner meets a defrosting condition and the air conditioner is in a refrigeration state;
a second control module 430 for increasing an operating frequency of a compressor based on the condensation point temperature and the defrost sensor temperature;
a third control module 440, configured to control the first three-way valve to connect the condenser with the evaporator through the resistance expansion valve, and control the second three-way valve to connect the heating device with the compressor, so as to form a first loop, where the first loop is used for defrosting the air conditioner;
in the first loop, the circulation path of the refrigerant is the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor.
The invention also provides an air conditioner which comprises the air conditioner defrosting control device.
The electronic device, the computer program product and the storage medium device provided by the present invention are described below, and the electronic device, the computer program product and the storage medium device described below and the air conditioner defrosting control method described above may be referred to in correspondence with each other.
Fig. 5 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 5: a processor (processor)510, a communication Interface (Communications Interface)520, a memory (memory)530 and a communication bus 540, wherein the processor 510, the communication Interface 520 and the memory 530 communicate with each other via the communication bus 540. Processor 510 may invoke logic instructions in memory 530 to perform an air conditioner defrost control method comprising:
acquiring the temperature of a defrosting sensor, and determining that an air conditioner meets defrosting conditions under the condition that the temperature of the defrosting sensor is greater than the condensation point temperature and less than a first preset temperature value;
when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state, controlling the blades of the indoor unit to stop rotating and adjusting the rotating speed of the blades of the outdoor unit to be within a target rotating speed;
increasing an operating frequency of a compressor based on the condensation point temperature and the defrost sensor temperature;
controlling a first three-way valve to connect the condenser with the evaporator through a resistance expansion valve, and controlling a second three-way valve to connect the heating device with the compressor to form a first loop for defrosting the air conditioner;
in the first loop, the circulation path of the refrigerant is the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor.
Furthermore, the logic instructions in the memory 530 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In another aspect, the present invention also provides a computer program product, the computer program product including a computer program, the computer program being stored on a non-transitory computer readable storage medium, wherein when the computer program is executed by a processor, the computer is capable of executing the air conditioner defrosting control method provided by the above methods, the method including:
acquiring the temperature of a defrosting sensor, and determining that an air conditioner meets defrosting conditions under the condition that the temperature of the defrosting sensor is greater than the condensation point temperature and less than a first preset temperature value;
when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state, controlling the blades of the indoor unit to stop rotating and adjusting the rotating speed of the blades of the outdoor unit to be within a target rotating speed;
increasing an operating frequency of a compressor based on the condensation point temperature and the defrost sensor temperature;
controlling a first three-way valve to connect the condenser with the evaporator through a resistance expansion valve, and controlling a second three-way valve to connect the heating device with the compressor to form a first loop for defrosting the air conditioner;
in the first loop, the circulation path of the refrigerant is the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor.
In yet another aspect, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, the computer program being implemented by a processor to perform the air conditioner defrosting control method provided by the above methods, the method including:
acquiring the temperature of a defrosting sensor, and determining that the air conditioner meets defrosting conditions under the condition that the temperature of the defrosting sensor is greater than the condensation point temperature and less than a first preset temperature value;
when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state, controlling the blades of the indoor unit to stop rotating and adjusting the rotating speed of the blades of the outdoor unit to be within a target rotating speed;
increasing an operating frequency of a compressor based on the condensation point temperature and the defrost sensor temperature;
controlling a first three-way valve to connect the condenser with the evaporator through a resistance expansion valve, and controlling a second three-way valve to connect the heating device with the compressor to form a first loop for defrosting the air conditioner;
in the first loop, the circulation path of the refrigerant is the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. An air conditioner defrosting control method is characterized by comprising the following steps:
acquiring the temperature of a defrosting sensor, and determining that an air conditioner meets defrosting conditions under the condition that the temperature of the defrosting sensor is greater than the condensation point temperature and less than a first preset temperature value;
when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state, controlling the blades of the indoor unit to stop rotating and adjusting the rotating speed of the blades of the outdoor unit to be within a target rotating speed;
increasing an operating frequency of a compressor based on the condensation point temperature and the defrost sensor temperature;
controlling a first three-way valve to connect the condenser with the evaporator through a resistance expansion valve, and controlling a second three-way valve to connect the heating device with the compressor to form a first loop for defrosting the air conditioner;
in the first loop, the circulation path of the refrigerant is the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor.
2. The air conditioner defrost control method as claimed in claim 1, further comprising:
after the defrosting of the air conditioner is determined to be finished, controlling the first three-way valve to connect the heating device with the condenser, and controlling the second three-way valve to connect the evaporator with the compressor to form a second loop;
and under the second loop, the circulation path of the refrigerant is the compressor, the evaporator, the electronic expansion valve, the solar heating device, the condenser and the compressor.
3. The air conditioner defrost control method of claim 2, further comprising:
and under the condition that the temperature of the outdoor heat exchanger is continuously greater than a second preset temperature value within a preset time length or the working time of the air conditioner in the defrosting state reaches a preset time threshold value, determining that the defrosting of the air conditioner is finished.
4. The air conditioner defrost control method of any one of claims 1-3, further comprising:
and when the air conditioner meets the defrosting condition and the air conditioner operates in a refrigerating state, adjusting the valve opening of the electronic expansion valve based on the condensation point temperature and the defrosting sensor temperature.
5. The air conditioner defrost control method of claim 4, wherein said adjusting a valve opening of the electronic expansion valve based on the condensing point temperature and the defrost sensor temperature comprises:
determining a temperature difference between the dew point temperature and the defrost sensor temperature;
multiplying the temperature difference value by a first set coefficient value and then taking a positive integer to obtain an opening increasing value of the electronic expansion valve;
and controlling the electronic expansion valve to increase the valve opening degree based on the opening degree increase value.
6. An air conditioner defrosting control device, comprising:
the defrosting control module is used for acquiring the temperature of a defrosting sensor, and determining that the air conditioner meets a defrosting condition under the condition that the temperature of the defrosting sensor is higher than the condensation point temperature and lower than a first preset temperature value;
the first control module is used for controlling the blades of the indoor unit to stop rotating and regulating the rotating speed of the blades of the outdoor unit to be within a target rotating speed when the air conditioner meets defrosting conditions and the air conditioner is in a refrigerating state;
a second control module for increasing the operating frequency of the compressor based on the condensation point temperature and the defrost sensor temperature;
the third control module is used for controlling the first three-way valve to connect the condenser with the evaporator through the resistance expansion valve and controlling the second three-way valve to connect the heating device with the compressor to form a first loop for defrosting the air conditioner;
in the first loop, the circulation path of the refrigerant is the compressor, the condenser, the electronic expansion valve, the evaporator, the heating device and the compressor.
7. An air conditioner characterized by comprising the air conditioner defrosting control apparatus of claim 7.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the air conditioner defrost control method according to any of claims 1 to 5 when executing the program.
9. A non-transitory computer-readable storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the air conditioner defrost control method as claimed in any one of claims 1 to 5.
10. A computer program product comprising a computer program, wherein the computer program, when executed by a processor, implements the air conditioning control method according to any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210612430.3A CN115076908A (en) | 2022-05-31 | 2022-05-31 | Air conditioner defrosting control method and device, air conditioner and electronic equipment |
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| CN202210612430.3A CN115076908A (en) | 2022-05-31 | 2022-05-31 | Air conditioner defrosting control method and device, air conditioner and electronic equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117404727A (en) * | 2023-12-15 | 2024-01-16 | 珠海格力电器股份有限公司 | Air conditioning unit, defrosting control method and device thereof and electronic equipment |
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- 2022-05-31 CN CN202210612430.3A patent/CN115076908A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117404727A (en) * | 2023-12-15 | 2024-01-16 | 珠海格力电器股份有限公司 | Air conditioning unit, defrosting control method and device thereof and electronic equipment |
| CN117404727B (en) * | 2023-12-15 | 2024-04-09 | 珠海格力电器股份有限公司 | Air conditioning unit, defrosting control method and device thereof and electronic equipment |
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