CN111121222B - Fluorine-lack protection method for air conditioner, air conditioner and readable storage medium - Google Patents
Fluorine-lack protection method for air conditioner, air conditioner and readable storage medium Download PDFInfo
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- CN111121222B CN111121222B CN201911416222.0A CN201911416222A CN111121222B CN 111121222 B CN111121222 B CN 111121222B CN 201911416222 A CN201911416222 A CN 201911416222A CN 111121222 B CN111121222 B CN 111121222B
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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
- F24F11/32—Responding to malfunctions or emergencies
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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
- 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
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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
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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
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- 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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Abstract
The invention discloses a fluorine deficiency protection method for an air conditioner, which comprises the following steps: acquiring an initial inner ring temperature and an initial inner tube temperature and calculating an initial temperature difference, wherein the initial temperature difference is the difference value of the initial inner ring temperature and the initial inner tube temperature; judging whether the initial inner ring temperature is within a preset inner ring temperature range or not and the initial temperature difference is smaller than or equal to a first preset difference value; if so, detecting the temperature of the inner ring and the temperature of the inner pipe in real time and calculating a real-time temperature difference, wherein the real-time temperature difference is the difference value of the temperature of the inner ring and the temperature of the inner pipe detected in real time; and when the difference between the real-time temperature difference and the initial temperature difference is smaller than or equal to a second preset difference and the duration of the difference between the real-time detected inner tube temperature and the initial inner tube temperature is smaller than or equal to a third preset difference reaches a first preset duration, controlling the compressor to stop. The invention also discloses an air conditioner and a readable storage medium. The temperature difference parameters are judged for many times, so that the air conditioner is ensured not to generate error protection under the condition of no fluorine deficiency or little fluorine deficiency, and the occurrence of error protection is reduced.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fluorine deficiency protection method for an air conditioner, the air conditioner and a readable storage medium.
Background
At present, a refrigerant of an air conditioner is mainly a fluorine-containing compound, and has the characteristics of easy evaporation and easy liquefaction, the refrigerant absorbs heat during evaporation and releases heat during liquefaction, the air conditioner utilizes the characteristics to realize energy transfer so as to achieve the purposes of refrigeration and heating, the air conditioner can have the condition of fluorine deficiency under some conditions, the fluorine deficiency of the air conditioner has poor refrigeration and heating effects and can cause overheating of a compressor, in the prior art, the fluorine deficiency protection method of the air conditioner comprises a core judgment parameter, such as power, current, exhaust temperature and the like, but in practical application, due to the reasons of parameter setting deviation and the like of the fluorine deficiency protection method, the air conditioner is often subjected to fluorine deficiency protection under the condition of no fluorine deficiency, the condition of error protection of the air conditioner exists, and the normal use of a user is influenced.
Disclosure of Invention
The invention provides a fluorine-deficient protection method for an air conditioner, the air conditioner and a readable storage medium, and aims to solve the problem of error protection when the air conditioner is not fluorine-deficient.
In order to achieve the above object, the present invention provides a fluorine deficiency protection method for an air conditioner, the method comprising the steps of:
acquiring an initial inner ring temperature and an initial inner tube temperature, and calculating an initial temperature difference, wherein the initial temperature difference is the difference value between the initial inner ring temperature and the initial inner tube temperature;
judging whether the initial inner ring temperature is within a preset inner ring temperature range or not and the initial temperature difference is smaller than or equal to a first preset difference value;
if so, detecting the temperature of the inner ring and the temperature of the inner pipe in real time, and calculating a real-time temperature difference, wherein the real-time temperature difference is the difference value between the temperature of the inner ring and the temperature of the inner pipe detected in real time;
judging whether the duration time meeting a preset condition reaches a first preset time length or not, wherein the preset condition is that the difference value between the real-time temperature difference and the initial temperature difference is smaller than or equal to a second preset difference value, and the difference value between the real-time detected inner tube temperature and the initial inner tube temperature is smaller than or equal to a third preset difference value;
and when the duration time meeting the preset condition reaches a first preset duration, controlling the compressor to stop.
Preferably, the step of controlling the compressor to stop is performed while the following steps are performed:
the number of times of fluorine-lacking protection is increased by 1.
Preferably, after the step of controlling the compressor to stop, the method further includes:
acquiring the corresponding longest continuous running time from the starting time to the stopping time of the compressor, and judging whether the longest continuous running time reaches a second preset time length;
if yes, reducing the protection frequency of lacking fluorine by 1;
if not, comparing the fluorine-lacking protection times with preset times;
and if the fluorine-lacking protection times are equal to the preset times, displaying a fluorine-lacking fault code.
Preferably, after the step of comparing the number of times of fluorine deficiency protection with the preset number of times, the method further comprises:
and if the fluorine-lacking protection times are smaller than the preset times, controlling the compressor to resume running after a third preset time.
Preferably, before the step of controlling the compressor to stop, the method further comprises:
when the duration time meeting the preset condition reaches a first preset duration, judging whether a gear switching instruction is received or not;
if not, executing the following steps: and controlling the compressor to stop.
Preferably, after the step of determining whether the gear shift instruction is received, the method further includes:
if so, after the running time of the compressor reaches a fourth preset time after the wind gear switching is completed, clearing the real-time temperature difference and the difference value between the real-time detected inner tube temperature and the initial inner tube temperature, and returning to the step: and detecting the temperature of the inner ring and the temperature of the inner tube in real time.
Preferably, before the step of obtaining the initial inner ring temperature and the initial inner pipe temperature, the method further comprises:
and when a starting-up instruction is received, ending the standby state according to the starting-up instruction and controlling the compressor to start up.
Preferably, before the step of detecting the temperature of the inner ring and the temperature of the inner tube in real time, the method comprises the following steps:
and detecting the temperature of the inner ring and the temperature of the inner pipe in real time after the operation is carried out for a fifth preset time period in a refrigeration mode or a dehumidification mode.
Further, to achieve the above object, the present invention also provides an air conditioner including: the air conditioner fluorine lack protection method comprises a communication module, a memory, a processor and a computer program which is stored on the memory and can run on the processor, wherein the computer program realizes the steps of the air conditioner fluorine lack protection method when being executed by the processor.
In addition, to achieve the above object, the present invention further provides a readable storage medium, which stores thereon a computer program, which, when executed by a processor, implements the steps of the fluorine deficiency protection method for an air conditioner as described above.
The method comprises the steps of obtaining an initial inner ring temperature and an initial inner tube temperature, and calculating an initial temperature difference, wherein the initial temperature difference is the difference value between the initial inner ring temperature and the initial inner tube temperature; judging whether the initial inner ring temperature is within a preset inner ring temperature range or not and the initial temperature difference is smaller than or equal to a first preset difference value; if so, detecting the temperature of the inner ring and the temperature of the inner pipe in real time, and calculating a real-time temperature difference, wherein the real-time temperature difference is the difference value between the temperature of the inner ring and the temperature of the inner pipe detected in real time; judging whether the duration time meeting a preset condition reaches a first preset time length or not, wherein the preset condition is that the difference value between the real-time temperature difference and the initial temperature difference is smaller than or equal to a second preset difference value, and the difference value between the real-time detected inner tube temperature and the initial inner tube temperature is smaller than or equal to a third preset difference value; and when the duration time meeting the preset condition reaches a first preset duration, controlling the compressor to stop. The temperature difference parameters are judged for many times, so that the air conditioner is ensured not to be protected by mistake under the condition of no fluorine shortage or little fluorine shortage, the reliability of the product is improved, and the possibility of the occurrence of the mistake protection is reduced.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a fluorine deficiency protection method for an air conditioner according to a first embodiment of the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic diagram of a hardware structure of an air conditioner according to the present invention.
The air conditioner may include components such as a communication module 10, a memory 20, and a processor 30 in a hardware structure. In the air conditioner, the processor 30 is connected to the memory 20 and the communication module 10, respectively, the memory 20 stores thereon a computer program, which is executed by the processor 30 at the same time, and when executed, implements the steps of the method embodiments described below.
The communication module 10 may be connected to an external communication device through a network. The communication module 10 may receive a request from an external communication device, and may also send a request, an instruction, and information to the external communication device. The external communication device may be a user terminal, such as a mobile phone, a tablet computer or other system server, etc.
The memory 20 may be used to store software programs as well as various data. The memory 20 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may include a database, and the storage data area may store data or information created according to the use of the air conditioner, and the like. Further, the memory 20 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The processor 30, which is a control center of the air conditioner, connects various parts of the entire air conditioner using various interfaces and lines, and performs various functions of the air conditioner and processes data by operating or executing software programs and/or modules stored in the memory 20 and calling data stored in the memory 20, thereby integrally monitoring the air conditioner. Processor 30 may include one or more processing units; alternatively, the processor 30 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 30.
Although not shown in fig. 1, the air conditioner may further include a circuit control module for connecting to a power supply to ensure normal operation of other components. Those skilled in the art will appreciate that the air conditioner configuration shown in fig. 1 is not intended to be limiting of the air conditioner and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
Based on the hardware structure, various embodiments of the method of the invention are provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of a fluorine deficiency protection method for an air conditioner according to the present invention, in the embodiment, the method includes:
step S10, acquiring an initial inner ring temperature and an initial inner tube temperature, and calculating an initial temperature difference, wherein the initial temperature difference is the difference value between the initial inner ring temperature and the initial inner tube temperature;
step S20, judging whether the initial inner ring temperature is in a preset inner ring temperature range and the initial temperature difference is less than or equal to a first preset difference value;
in this embodiment, an initial inner ring temperature and an initial inner tube temperature are obtained, the inner ring temperature is an air return inlet temperature of an air conditioner, the inner tube temperature is an inner tube temperature of an indoor evaporator, and whether the initial inner ring temperature is within a preset inner ring temperature range and whether an initial temperature difference is less than or equal to a first preset difference is judged, wherein the initial temperature difference is a difference between the initial inner ring temperature and the initial inner tube, the preset inner ring temperature range is 24 ℃ to 45 ℃, the first preset difference can be set to 2 ℃, generally, if the obtained initial inner ring temperature and the initial inner tube temperature are basically the same and have a small difference, the air conditioner is powered on for the first time, that is, the air conditioner is turned on from standby, at this time, fluorine-deficient protection monitoring is performed to be meaningful, for example, when the difference between the initial inner ring temperature and the initial inner tube temperature is less than or equal to 2 ℃, the air conditioner is powered on for the first time, and is in a standby mode before the air conditioner is turned on, at the moment, fluorine deficiency protection monitoring is required; when the difference between the initial inner ring temperature and the initial inner tube temperature is large, for example, when the difference between the initial inner ring temperature and the initial inner tube temperature is greater than 2 ℃, it is indicated that the air conditioner is not powered on for the first time, the air conditioner is operated before, and when the air conditioner is started for this time, the initial inner ring temperature and the initial inner tube temperature of the air conditioner are not restored to a balance state, and at this time, fluorine-lacking protection monitoring is not required to be performed, and detection is performed when the air conditioner is started for the next time. Meanwhile, when the initial inner ring temperature is between 24 ℃ and 45 ℃, fluorine deficiency protection monitoring is required to be carried out at the moment; when the initial inner ring temperature is lower than 24 ℃, the monitoring of fluorine-lacking protection is not needed. And only when the initial inner ring temperature is within the preset inner ring temperature range and the difference between the initial inner ring temperature and the initial inner tube temperature is smaller than or equal to a first preset difference, entering fluorine-lacking protection monitoring, so that the fluorine-lacking protection judgment is more accurate.
Step S30, if yes, detecting the temperature of the inner ring and the temperature of the inner pipe in real time, and calculating a real-time temperature difference, wherein the real-time temperature difference is the difference value between the temperature of the inner ring and the temperature of the inner pipe detected in real time;
step S40, judging whether the duration time meeting preset conditions reaches a first preset duration time, wherein the preset conditions are that the difference between the real-time temperature difference and the initial temperature difference is smaller than or equal to a second preset difference, and the difference between the real-time detected inner tube temperature and the initial inner tube temperature is smaller than or equal to a third preset difference;
and step S50, when the duration time meeting the preset condition reaches a first preset duration, controlling the compressor to stop.
In this embodiment, in order to further determine whether the air conditioner is deficient in fluorine, when the condition that the initial inner ring temperature is within the preset inner ring temperature range and the difference between the initial inner ring temperature and the initial inner tube temperature is less than or equal to a first preset difference is satisfied, the inner ring temperature and the inner tube temperature are detected in real time and a real-time temperature difference is calculated, wherein the real-time temperature difference is the difference between the inner ring temperature and the inner tube temperature detected in real time, and whether the duration time satisfying the preset condition reaches a first preset duration time is further determined, wherein the condition that the difference between the real-time temperature difference and the initial temperature difference is less than or equal to a second preset difference and the difference between the inner tube temperature detected in real time and the initial inner tube temperature is less than or equal to a third preset difference is satisfied, under normal conditions, if the air conditioner does not lack of fluorine, after the compressor operates for a period of time, the difference between the inner ring temperature detected in real time and the inner tube temperature is greater to indicate that the air conditioner does not lack of fluorine, the refrigerating effect is good, but when the difference between the real-time temperature difference and the initial temperature difference is smaller than or equal to a second preset difference, and the difference between the real-time temperature difference and the initial temperature difference is smaller than or equal to a third preset difference, and the duration time reaches a first preset time, wherein the second preset difference can be set to be 2 ℃, the second preset time can be set to be 60s, the air conditioner is determined to be lack of fluorine, the air conditioner enters a fluorine-lacking protection state, namely, the compressor is controlled to stop the machine, at present, the refrigerant of the air conditioner is mainly a fluorine-containing compound and has the characteristic of easy evaporation and easy liquefaction, the heat is absorbed by evaporation, the heat is released during liquefaction, the air conditioner realizes the energy transfer by utilizing the characteristic, so as to achieve the purposes of refrigerating and heating, however, if the air conditioner is lack of fluorine and continuously operates for a long time, not only the refrigerating and heating effects are poor, the electric energy is wasted, and the heat generated by the compressor cannot be taken away by the refrigerant in time, the compressor is overheated, the compressor can be damaged in the severe case, the service life of the whole air conditioner is influenced, and therefore the air conditioner enters a fluorine-lacking protection state in the embodiment, the compressor is controlled to stop in order to avoid damage to the compressor, and the service life of the compressor can be prolonged.
In order to avoid error protection of the air conditioner, the embodiment obtains the initial inner ring temperature and the initial inner tube temperature, detects the inner ring temperature and the inner tube temperature in real time, judges each temperature parameter value for many times, enters a fluorine-lacking protection state when each temperature parameter meets the condition, ensures that error protection does not occur under the condition that no fluorine is lacking or the fluorine content is little, improves the reliability of the product, and reduces the possibility of error protection.
Further, a second embodiment of the fluorine deficiency protection method for an air conditioner of the present invention is proposed based on the first embodiment of the fluorine deficiency protection method for an air conditioner of the present invention, and in this embodiment, while step S50 is performed, the following steps are also performed:
and step S500, adding 1 to the number of times of fluorine-lacking protection.
In the embodiment, the entering of the fluorine-deficient protection state not only controls the operation of the compressor, but also adds 1 to the fluorine-deficient protection times, and then can further determine whether the fluorine-deficient protection times corresponding to the current air conditioner are accumulated to the preset times, when the fluorine-deficient protection times are accumulated to the preset times, the operation of the compressor is forbidden, even if a starting instruction sent by a user is received, the compressor can not operate any more, the compressor can be further protected, and the service life of the compressor is prolonged.
Further, a third embodiment of the fluorine-deficient protection method for an air conditioner according to the present invention is proposed based on the first embodiment of the fluorine-deficient protection method for an air conditioner according to the present invention, and in this embodiment, after step S50, the method further includes:
step S51, acquiring the longest continuous running time corresponding to the compressor from starting to stopping, and judging whether the longest continuous running time reaches a second preset time length;
step S52, if yes, subtracting 1 from the protection frequency of lacking fluorine;
step S53, if not, comparing the protection times of lacking fluorine with the preset times;
and step S54, if the fluorine-lacking protection times are equal to the preset times, displaying a fluorine-lacking fault code.
In this embodiment, after the air conditioner enters the fluorine-deficient protection, that is, the compressor is controlled to stop and 1 is added to the fluorine-deficient protection frequency, the maximum continuous operation time corresponding to the compressor from the startup to the shutdown is obtained, and whether the maximum continuous operation time reaches a second preset time length is judged, wherein the second preset time length is 30min, when the maximum continuous operation time corresponding to the compressor from the startup to the shutdown reaches 30min, it is indicated that the compressor can normally operate, it is indicated that the air conditioner does not lack fluorine, there is a possibility of erroneous judgment, the fluorine-deficient protection frequency at this time is reduced by 1, the erroneous judgment is not recorded in the fluorine-deficient protection frequency, the air conditioner can still normally operate, and the normal use of a user is not affected. When the corresponding maximum continuous operation time of the compressor from starting to stopping does not reach 30min, the air conditioner is indicated to lack fluorine, the fluorine-lacking protection frequency needs to be compared with the preset frequency, wherein the preset frequency can be set to 3, when the latest fluorine-lacking protection frequency is determined to be equal to 3, the air conditioner is indicated to be seriously lack fluorine, the compressor is controlled to be forbidden to operate, even if a user sends an instruction for starting the air conditioner again, the compressor does not operate any more for protecting the compressor, the fluorine-lacking code is displayed at the same time, and the fluorine-lacking code is sent to an after-sale terminal of the air conditioner, so that the user can effectively remind the user and a manufacturer after the air conditioner is sold after the air conditioner is lack of fluorine, the user can know the fault of the air conditioner, and after-sale maintenance personnel can maintain the air conditioner as soon as possible after knowing the fluorine-lacking fault code of the air conditioner, and the user is prevented from passively discovering that the air conditioner is stopped, the problem of lag in the process of performing maintenance treatment on the air conditioner.
Further, after step S53, the method further includes:
and step S55, if the fluorine-lacking protection times are less than the preset times, controlling the compressor to resume running after a third preset time.
In this embodiment, when the latest fluorine-deficient protection time is less than the preset time, where the preset time is 3 times, and when the latest fluorine-deficient protection time of the air conditioner is 1 or 2, it indicates that the fluorine deficiency amount of the air conditioner is small and within the allowable fluorine-deficient range of the air conditioner, and does not affect the normal operation of the compressor and the air conditioner, at this time, the compressor is controlled to resume operation after a third preset time period elapses, where the third preset time period may be set to 3min, and the compressor is controlled to resume operation after 3 min. Determining whether the compressor can continue to operate according to the latest fluorine-lacking protection times, if the fluorine-lacking protection times are equal to the preset times, the refrigerating effect of the air conditioner is poor, and controlling the compressor not to operate any more for protecting the compressor; if the frequency of fluorine deficiency protection is less than the preset frequency, the air conditioner does not seriously lack fluorine, the air conditioner can continue to refrigerate, and the compressor can run, so that the use of a user is not influenced.
Further, a fourth embodiment of the fluorine deficiency protection method for an air conditioner according to the present invention is proposed based on the first embodiment of the fluorine deficiency protection method for an air conditioner according to the present invention, and in this embodiment, before the step of controlling the compressor to stop in step S50, the method further includes:
step S60, when the duration time meeting the preset condition reaches a first preset duration, judging whether a gear switching instruction is received; if not, executing the step of controlling the compressor to stop in the step S50; if yes, go to step S61;
step S61, after the running time of the compressor reaches a fourth preset time after the wind gear is switched, clearing the real-time temperature difference and the difference value between the real-time detected inner tube temperature and the initial inner tube temperature, and returning to the step: and detecting the temperature of the inner ring and the temperature of the inner tube in real time.
In this embodiment, when the duration time meeting the preset condition reaches a first preset duration, it is determined whether a gear switching instruction is received, and when the air conditioner does not receive the gear switching instruction, the air conditioner enters a fluorine-deficient protection state, that is, the compressor is controlled to stop and the number of times of fluorine-deficient protection is increased by 1; when the air conditioner receives a wind shield switching instruction, the temperature of the inner pipe inevitably changes greatly, the inner pipe does not enter a fluorine-lacking protection state temporarily, after the running time of the compressor reaches a fourth preset time after the wind shield switching is finished, wherein the fourth preset time is 5min, whether the inner pipe enters the fluorine-lacking protection state needs to be judged again, the real-time temperature difference and the difference value between the real-time detected temperature of the inner pipe and the initial inner pipe temperature are eliminated, the step of detecting the temperature of the inner ring and the temperature of the inner pipe in real time is returned, and the possibility of error protection can be reduced.
Further, a fifth embodiment of the fluorine-deficient protection method for an air conditioner according to the present invention is proposed based on the first embodiment of the fluorine-deficient protection method for an air conditioner according to the present invention, and before step S10, the method further includes:
and S100, when a starting-up instruction is received, ending the standby state according to the starting-up instruction and controlling the compressor to start up.
In this embodiment, when a power-on instruction sent by a user is received, the air conditioner is started, the air conditioner ends the current standby state according to the power-on instruction and controls the compressor to start, and obtains the initial inner ring temperature and the initial inner tube temperature, and when the air conditioner is in the standby state and the standby state has been continued for a period of time, it is only meaningful to judge that the air conditioner is fluorine-deficient. If the air conditioner is switched among different modes, the condition that the judgment of fluorine lack protection is inaccurate exists, so that the judgment of whether the air conditioner lacks fluorine is more accurate only when the air conditioner is powered on for the first time from a standby state to a starting state.
Further, the sixth embodiment of the fluorine deficiency protection method for an air conditioner according to the present invention is proposed based on the first embodiment of the fluorine deficiency protection method for an air conditioner according to the present invention, and the step of detecting the temperature of the inner ring and the temperature of the inner tube in real time in step S30 includes:
and step S300, detecting the temperature of the inner ring and the temperature of the inner pipe in real time after the operation is carried out for a fifth preset time in a refrigeration mode or a dehumidification mode.
In this embodiment, when the initial inner ring temperature is within the preset inner ring temperature range and the initial temperature difference is smaller than the first preset difference, and the air conditioner is currently operated in the refrigeration mode or the dehumidification mode, and the air conditioner is operated in the refrigeration mode or the dehumidification mode for a fifth preset time period, the inner ring temperature and the inner tube temperature are detected in real time, wherein the fifth preset time period is 5min, the inner ring temperature and the inner tube temperature change after the air conditioner is normally operated for a period of time, the difference is large, the temperature of the inner tube of the air conditioner should be lower than the inner ring temperature, so that the air conditioner can continuously blow cold air indoors, but when the passage of the refrigerant is lack of fluorine, the difference between the inner ring temperature and the inner tube temperature is not large due to poor heat energy circulation, the inner ring temperature and the inner tube temperature are detected in real time in the refrigeration mode or the dehumidification mode, and then parameter judgment is performed for multiple times, so as to enter the fluorine-lacking protection state, the air conditioner is ensured not to generate error protection under the condition of no fluorine shortage or little fluorine shortage, and the possibility of error protection is reduced.
The invention also proposes a computer-readable storage medium on which a computer program is stored. The computer-readable storage medium may be a Memory in the air conditioner of fig. 1, and may also be at least one of a ROM (Read-Only Memory)/RAM (Random Access Memory), a magnetic disk, and an optical disk, where the computer-readable storage medium includes instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, a terminal, or a network device) having a processor to execute the method according to the embodiments of the present invention.
In the present invention, the terms "first", "second", "third", "fourth" and "fifth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although the embodiment of the present invention has been shown and described, the scope of the present invention is not limited thereto, it should be understood that the above embodiment is illustrative and not to be construed as limiting the present invention, and that those skilled in the art can make changes, modifications and substitutions to the above embodiment within the scope of the present invention, and that these changes, modifications and substitutions should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A fluorine deficiency protection method for an air conditioner is characterized by comprising the following steps:
acquiring an initial inner ring temperature and an initial inner tube temperature, and calculating an initial temperature difference, wherein the initial temperature difference is the difference value between the initial inner ring temperature and the initial inner tube temperature;
judging whether the initial inner ring temperature is within a preset inner ring temperature range or not and the initial temperature difference is smaller than or equal to a first preset difference value;
if so, detecting the temperature of the inner ring and the temperature of the inner pipe in real time, and calculating a real-time temperature difference, wherein the real-time temperature difference is the difference value between the temperature of the inner ring and the temperature of the inner pipe detected in real time;
judging whether the duration time meeting a preset condition reaches a first preset time length or not, wherein the preset condition is that the difference value between the real-time temperature difference and the initial temperature difference is smaller than or equal to a second preset difference value, and the difference value between the real-time detected inner tube temperature and the initial inner tube temperature is smaller than or equal to a third preset difference value;
when the duration time meeting the preset condition reaches a first preset duration, controlling the compressor to stop;
after the step of controlling the compressor to stop, the method further comprises the following steps:
acquiring the corresponding longest continuous running time from the starting time to the stopping time of the compressor, and judging whether the longest continuous running time reaches a second preset time length;
if yes, reducing the protection frequency of lacking fluorine by 1;
if not, comparing the fluorine-lacking protection times with preset times;
and if the fluorine-lacking protection times are equal to the preset times, displaying a fluorine-lacking fault code.
2. The fluorine deficiency protection method for an air conditioner according to claim 1, wherein the step of controlling the compressor to stop is performed while the following steps are performed:
the number of times of fluorine-lacking protection is increased by 1.
3. The fluorine deficiency protection method for an air conditioner according to claim 1, wherein the step of comparing the number of times of fluorine deficiency protection with a preset number of times is followed by further comprising:
and if the fluorine-lacking protection times are smaller than the preset times, controlling the compressor to resume running after a third preset time.
4. The fluorine deficiency protection method for an air conditioner according to claim 1, wherein the step of controlling the compressor to stop further comprises, before the step of controlling the compressor to stop:
when the duration time meeting the preset condition reaches a first preset duration, judging whether a gear switching instruction is received or not;
if not, executing the following steps: and controlling the compressor to stop.
5. The fluorine deficiency protection method for an air conditioner according to claim 4, wherein after the step of determining whether the windshield wiper switch command is received, further comprising:
if so, after the running time of the compressor reaches a fourth preset time after the wind gear switching is completed, clearing the real-time temperature difference and the difference value between the real-time detected inner tube temperature and the initial inner tube temperature, and returning to the step: and detecting the temperature of the inner ring and the temperature of the inner tube in real time.
6. The fluorine deficiency protection method for an air conditioner according to claim 1, wherein the step of obtaining the initial inner-loop temperature and the initial inner-tube temperature is preceded by the steps of:
and when a starting-up instruction is received, ending the standby state according to the starting-up instruction and controlling the compressor to start up.
7. The fluorine deficiency protection method for an air conditioner according to claim 1, wherein the step of detecting the temperature of the inner ring and the temperature of the inner tube in real time is preceded by:
and detecting the temperature of the inner ring and the temperature of the inner pipe in real time after the operation is carried out for a fifth preset time period in a refrigeration mode or a dehumidification mode.
8. An air conditioner, characterized in that the air conditioner comprises: a communication module, a memory, a processor and a computer program stored on the memory and operable on the processor, the computer program when executed by the processor implementing the steps of the air conditioner fluorine deficiency protection method according to any one of claims 1 to 7.
9. A readable storage medium, characterized in that the readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the air conditioner fluorine deficiency protection method as set forth in any one of claims 1-7.
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| CN113432212B (en) * | 2021-06-30 | 2022-09-16 | 海信（广东）空调有限公司 | Method of controlling dehumidifier, and computer-readable storage medium |
| CN113932371B (en) * | 2021-11-23 | 2023-03-31 | 宁波奥克斯电气股份有限公司 | Air conditioner fluorine deficiency protection method and device and air conditioner |
| CN115585547A (en) * | 2022-09-19 | 2023-01-10 | 海尔(深圳)研发有限责任公司 | Method and device for controlling dehumidifier, dehumidifier and storage medium |
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