CN111397094A - Cleaning method for indoor heat exchanger of air conditioner, air conditioner and computer storage medium - Google Patents
Cleaning method for indoor heat exchanger of air conditioner, air conditioner and computer storage medium Download PDFInfo
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- CN111397094A CN111397094A CN202010231261.XA CN202010231261A CN111397094A CN 111397094 A CN111397094 A CN 111397094A CN 202010231261 A CN202010231261 A CN 202010231261A CN 111397094 A CN111397094 A CN 111397094A
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000004140 cleaning Methods 0.000 title claims abstract description 42
- 238000010257 thawing Methods 0.000 claims abstract description 71
- 230000001954 sterilising effect Effects 0.000 claims abstract description 55
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 55
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 description 7
- 238000004891 communication Methods 0.000 description 6
- 230000003749 cleanliness Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Human Computer Interaction (AREA)
- Fluid Mechanics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a cleaning method of an indoor heat exchanger of an air conditioner, which comprises the following steps: when the air conditioner is in a high-temperature sterilization mode, determining whether an outdoor heat exchanger in the air conditioner is frosted; if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner to defrost the outdoor heat exchanger; when the outdoor heat exchanger is defrosted, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner; and cleaning the indoor heat exchanger by using condensed water formed by defrosting of the indoor heat exchanger. The invention also discloses an air conditioner and a computer storage medium. When the defrosting of the outdoor heat exchanger is finished, the rotating speed of the indoor fan in the air conditioner is increased, so that the indoor heat exchanger is defrosted at high temperature, the air conditioner cleans the indoor heat exchanger by using condensed water formed by defrosting, and the utilization rate of energy is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a cleaning method for an indoor heat exchanger of an air conditioner, the air conditioner and a computer storage medium.
Background
With the rapid development of science and technology, the air conditioner with the high-temperature sterilization function slowly appears in the visual field of people, and the air conditioner with the high-temperature sterilization function is used for heating and operating the air conditioner for a long time so as to increase the temperature of an indoor heat exchanger to be not lower than the sterilization temperature.
The air conditioner needs to be heated during the high-temperature sterilization function, when the air conditioner is operated for heating, the surface of an outdoor heat exchanger in the air conditioner is easy to frost, the heating capacity of the frosted air conditioner is rapidly reduced, so that the indoor heat exchanger cannot be maintained in a high-temperature state for effective sterilization, and therefore defrosting needs to be rapidly performed after frosting, so that the outdoor heat exchanger in the air conditioner can recover strong heat exchange capacity; however, the running state of the air conditioner changes greatly during the defrosting process, and the energy consumption is high, so how to fully utilize the energy consumed during the defrosting process at high temperature, which becomes a technical problem to be solved at present.
Disclosure of Invention
The invention mainly aims to provide a cleaning method for an indoor heat exchanger of an air conditioner, the air conditioner and a computer storage medium, and aims to solve the technical problem of serious energy waste in the current high-temperature sterilization mode.
In order to achieve the purpose, the invention provides a cleaning method of an indoor heat exchanger of an air conditioner, which comprises the following steps:
when the air conditioner is in a high-temperature sterilization mode, determining whether an outdoor heat exchanger in the air conditioner is frosted;
if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner to defrost the outdoor heat exchanger;
when the outdoor heat exchanger is defrosted, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner;
and cleaning the indoor heat exchanger by using condensed water formed by defrosting of the indoor heat exchanger.
Optionally, the step of determining whether the outdoor heat exchanger in the air conditioner is frosted when the air conditioner is in the high temperature sterilization mode includes:
when the air conditioner is in a high-temperature sterilization mode, acquiring the outdoor environment temperature;
if the outdoor environment temperature is lower than the preset environment temperature, determining the duration of the high-temperature sterilization mode;
when the duration of the high-temperature sterilization mode is less than or equal to the preset duration, judging that the outdoor heat exchanger in the air conditioner is not frosted;
and when the duration of the high-temperature sterilization mode is longer than the preset duration, judging that the outdoor heat exchanger in the air conditioner is frosted.
Optionally, if the outdoor heat exchanger is frosted, the step of reducing the rotation speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner, so that the outdoor heat exchanger is frosted includes:
if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and acquiring the operating frequency of a compressor in the air conditioner;
and when the operating frequency of the compressor is less than a preset frequency threshold value, increasing the operating frequency of the compressor to a target frequency, and operating the air conditioner according to the target frequency.
Optionally, after the step of reducing the rotation speed of an indoor fan in the air conditioner and acquiring the operating frequency of a compressor in the air conditioner if the outdoor heat exchanger is frosted, the method includes:
and when the operating frequency of the compressor is greater than or equal to a preset frequency threshold value, reducing the opening degree of an expansion valve in the air conditioner to a target opening value, and operating the air conditioner according to the target opening value.
Optionally, after the step of increasing the operating frequency of the compressor to a target frequency and operating the air conditioner according to the target frequency when the operating frequency of the compressor is less than a preset frequency threshold, the method includes:
when the air conditioner operates the target long time according to the target frequency, acquiring a temperature value of the outdoor heat exchanger;
and when the temperature value of the outdoor heat exchanger is lower than the outdoor environment temperature, reducing the opening degree of an expansion valve in the air conditioner to a target opening value, and operating the air conditioner according to the target opening value.
Optionally, after the step of defrosting the outdoor heat exchanger, the method includes the steps of reducing the rotation speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner if the outdoor heat exchanger is frosted:
when the defrosting operation of the outdoor heat exchanger is executed for a preset defrosting time, judging that the defrosting of the outdoor heat exchanger is finished;
when the defrosting of the outdoor heat exchanger is finished, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner, wherein the defrosting step comprises the following steps:
and when the outdoor heat exchanger is defrosted, controlling and increasing the rotating speed of an indoor fan in the air conditioner according to a preset rotating speed increasing rule so as to defrost the indoor heat exchanger in the air conditioner.
Optionally, after the step of defrosting the outdoor heat exchanger, the method includes the steps of reducing the rotation speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner if the outdoor heat exchanger is frosted:
and when the rotating speed of the indoor fan in the air conditioner is detected to be reduced to the target rotating speed, controlling to reduce the rotating speed of the outdoor fan in the air conditioner.
Optionally, when defrosting of the outdoor heat exchanger is completed, increasing the rotation speed of an indoor fan in the air conditioner, so that the defrosting of the indoor heat exchanger in the air conditioner includes:
when the defrosting of the outdoor heat exchanger is finished, the rotation angle of an air deflector in the air conditioner is controlled and adjusted, and the rotating speed of an indoor fan in the air conditioner is increased, so that the indoor heat exchanger in the air conditioner is defrosted.
Further, to achieve the above object, the present invention also provides an air conditioner including: the cleaning method comprises a memory, a processor and an air conditioner indoor heat exchanger cleaning program which is stored on the memory and can run on the processor, wherein when the cleaning program is executed by the processor, the steps of the cleaning method for the air conditioner indoor heat exchanger are realized.
In addition, to achieve the above object, the present invention also provides a computer readable storage medium having stored thereon a cleaning program for an indoor heat exchanger of an air conditioner, which when executed by a processor, implements the steps of the cleaning method for an indoor heat exchanger of an air conditioner as described above.
The invention provides a cleaning method for an indoor heat exchanger of an air conditioner, the air conditioner and a computer storage medium, wherein in the embodiment of the invention, when the air conditioner is in a high-temperature sterilization mode, whether an outdoor heat exchanger in the air conditioner frosts or not is determined; if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner to defrost the outdoor heat exchanger; when the outdoor heat exchanger is defrosted, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner; and cleaning the indoor heat exchanger by using condensed water formed by defrosting of the indoor heat exchanger. According to the embodiment of the invention, the indoor heat exchanger is controlled not to frost in the defrosting process of the outdoor heat exchanger, when the outdoor heat exchanger is defrosted, the rotating speed of the indoor fan in the air conditioner is increased, so that the indoor heat exchanger is defrosted, and the condensed water formed by defrosting is utilized to clean the indoor heat exchanger, so that the utilization rate of energy in a high-temperature sterilization mode is improved, the cleanliness of the indoor heat exchanger in the air conditioner is ensured, the cleaning frequency of the indoor heat exchanger is reduced, and the heat exchange capacity of the air conditioner is effectively ensured.
Drawings
FIG. 1 is a schematic diagram of an air conditioner in a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a cleaning method for an indoor heat exchanger of an air conditioner according to a first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
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.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a hardware air conditioner according to an embodiment of the present invention.
As shown in fig. 1, the air conditioner may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory (e.g., a magnetic disk memory). The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the air conditioner configuration shown in fig. 1 does not constitute a limitation of the air conditioner, and that an actual air conditioner may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating system, a network communication module, a user interface module, and an air conditioner indoor heat exchanger cleaning program.
In the air conditioner shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be used to invoke the air conditioner indoor heat exchanger cleaning program stored in the memory 1005.
In the present embodiment, an air conditioner includes: a memory 1005, a processor 1001, and an air conditioner indoor heat exchanger cleaning program stored in the memory 1005 and operable on the processor 1001, wherein when the processor 1001 calls the air conditioner indoor heat exchanger cleaning program stored in the memory 1005, the following operations are performed:
when the air conditioner is in a high-temperature sterilization mode, determining whether an outdoor heat exchanger in the air conditioner is frosted;
if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner to defrost the outdoor heat exchanger;
when the outdoor heat exchanger is defrosted, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner;
and cleaning the indoor heat exchanger by using condensed water formed by defrosting of the indoor heat exchanger.
Further, the processor 1001 may call a cleaning program of the indoor heat exchanger of the air conditioner stored in the memory 1005, and the step of determining whether the outdoor heat exchanger of the air conditioner is frosted when the air conditioner is in the high temperature sterilization mode further performs the following operations:
when the air conditioner is in a high-temperature sterilization mode, acquiring the outdoor environment temperature;
if the outdoor environment temperature is lower than the preset environment temperature, determining the duration of the high-temperature sterilization mode;
when the duration of the high-temperature sterilization mode is less than or equal to the preset duration, judging that the outdoor heat exchanger in the air conditioner is not frosted;
and when the duration of the high-temperature sterilization mode is longer than the preset duration, judging that the outdoor heat exchanger in the air conditioner is frosted.
Further, the processor 1001 may call a cleaning program of the indoor heat exchanger of the air conditioner stored in the memory 1005, and if the outdoor heat exchanger is frosted, the rotational speed of the indoor fan in the air conditioner is reduced, and the operation frequency of the compressor in the air conditioner is adjusted and/or the opening value of the expansion valve in the air conditioner is adjusted, so that the outdoor heat exchanger is frosted, further performing the following operations:
if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and acquiring the operating frequency of a compressor in the air conditioner;
and when the operating frequency of the compressor is less than a preset frequency threshold value, increasing the operating frequency of the compressor to a target frequency, and operating the air conditioner according to the target frequency.
Further, the processor 1001 may call a cleaning program of an indoor heat exchanger of an air conditioner stored in the memory 1005, and after the step of reducing the rotation speed of an indoor fan in the air conditioner and acquiring the operating frequency of a compressor in the air conditioner if the outdoor heat exchanger is frosted, the following operations are further performed:
and when the operating frequency of the compressor is greater than or equal to a preset frequency threshold value, reducing the opening degree of an expansion valve in the air conditioner to a target opening value, and operating the air conditioner according to the target opening value.
Further, the processor 1001 may call an air conditioner indoor heat exchanger cleaning program stored in the memory 1005, and after the step of increasing the operating frequency of the compressor to a target frequency and operating the air conditioner according to the target frequency when the operating frequency of the compressor is less than a preset frequency threshold, further perform the following operations:
when the air conditioner operates the target long time according to the target frequency, acquiring a temperature value of the outdoor heat exchanger;
and when the temperature value of the outdoor heat exchanger is lower than the outdoor environment temperature, reducing the opening degree of an expansion valve in the air conditioner to a target opening value, and operating the air conditioner according to the target opening value.
Further, the processor 1001 may call a cleaning program of the indoor heat exchanger of the air conditioner stored in the memory 1005, and if the outdoor heat exchanger is frosted, the rotation speed of the indoor fan in the air conditioner is reduced, and the operation frequency of the compressor in the air conditioner is adjusted and/or the opening value of the expansion valve in the air conditioner is adjusted, so that after the step of defrosting the outdoor heat exchanger, the following operations are further performed:
when the defrosting operation of the outdoor heat exchanger is executed for a preset defrosting time, judging that the defrosting of the outdoor heat exchanger is finished;
when the defrosting of the outdoor heat exchanger is finished, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner, wherein the defrosting step comprises the following steps:
and when the outdoor heat exchanger is defrosted, controlling and increasing the rotating speed of an indoor fan in the air conditioner according to a preset rotating speed increasing rule so as to defrost the indoor heat exchanger in the air conditioner.
Further, the processor 1001 may call a cleaning program of the indoor heat exchanger of the air conditioner stored in the memory 1005, and if the outdoor heat exchanger is frosted, the rotation speed of the indoor fan in the air conditioner is reduced, and the operation frequency of the compressor in the air conditioner is adjusted and/or the opening value of the expansion valve in the air conditioner is adjusted, so that after the step of defrosting the outdoor heat exchanger, the following operations are further performed:
and when the rotating speed of the indoor fan in the air conditioner is detected to be reduced to the target rotating speed, controlling to reduce the rotating speed of the outdoor fan in the air conditioner.
Further, the processor 1001 may call a cleaning program of the indoor heat exchanger of the air conditioner stored in the memory 1005, and when defrosting of the outdoor heat exchanger is completed, increase the rotation speed of the indoor fan in the air conditioner so as to defrost the indoor heat exchanger in the air conditioner, further perform the following operations:
when the defrosting of the outdoor heat exchanger is finished, the rotation angle of an air deflector in the air conditioner is controlled and adjusted, and the rotating speed of an indoor fan in the air conditioner is increased, so that the indoor heat exchanger in the air conditioner is defrosted.
The embodiment of the cleaning method of the indoor heat exchanger of the air conditioner is provided based on the hardware structure.
Referring to fig. 2, fig. 2 is a schematic flow chart of a cleaning method for an indoor heat exchanger of an air conditioner according to a first embodiment of the present invention.
In a first embodiment of a method for cleaning an indoor heat exchanger of an air conditioner according to the present invention, the method for cleaning an indoor heat exchanger of an air conditioner includes the steps of:
and step S10, when the air conditioner is in the high-temperature sterilization mode, determining whether the outdoor heat exchanger in the air conditioner is frosted.
The cleaning method for the indoor heat exchanger of the air conditioner in the embodiment is applied to the air conditioner, and the air conditioner can comprise a compressor, an expansion valve, an indoor heat exchanger, an outdoor heat exchanger, an indoor fan, an outdoor fan and the like. The expansion valve is a throttle control element and is mainly used for adjusting and controlling the flow of liquid flowing through the expansion valve of the air conditioning system to limit the flow.
When the air conditioner is in a high-temperature sterilization mode (the high-temperature sterilization mode is that the air conditioner is in heating operation, the temperature of the indoor heat exchanger is increased to be not lower than the sterilization temperature, namely, a refrigerant in the air conditioner is pressurized by a compressor during heating of the air conditioner to become high-temperature high-pressure gas, the high-temperature high-pressure gas enters the indoor heat exchanger, the refrigerant is condensed, liquefied and released, air is heated, and the temperature of the indoor heat exchanger is controlled, so that the purpose of high-temperature sterilization is achieved), whether the outdoor heat exchanger in the air conditioner frosts or.
It can be understood that the determination of whether the outdoor heat exchanger frosts may be implemented in different manners, and the principle of whether the outdoor heat exchanger frosts is determined jointly according to the outdoor environment temperature, the temperature of the outdoor heat exchanger, and the operation state of the air conditioner, which is not limited in this embodiment.
In this embodiment, when the air conditioner is in the high-temperature sterilization mode, the air conditioner is in a heating state, the temperature of the indoor heat exchanger in the air conditioner is increased to a target temperature interval corresponding to the high-temperature sterilization, where the target temperature interval is determined by a high-temperature sterilization minimum temperature value and a high-temperature sterilization maximum temperature value, for example, the target temperature interval is [56.5 ℃, 58.5 ℃), the high-temperature sterilization minimum temperature value is 56.5, the high-temperature sterilization maximum temperature value is 58.5, and a set sterilization time period (for example, for 30 minutes) is maintained, during the sterilization time period, a frosting phenomenon may occur in the outdoor heat exchanger of the air conditioner, and the heating capacity of the frosted air conditioner is rapidly reduced, so that the indoor heat exchanger cannot be maintained in a high-temperature state with effective sterilization, and therefore, defrosting needs to be performed quickly after frosting of the outdoor heat exchanger:
and step S20, if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner to defrost the outdoor heat exchanger.
If the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, wherein the strategy for reducing the rotating speed of the indoor fan can be flexibly specified according to a specific scene, for example, the rotating speed of the indoor fan is controlled by the air conditioner to be reduced by ten percent per minute; the air conditioner needs to adjust the operating frequency of the compressor and/or adjust the opening value of the expansion valve while the rotation speed of the indoor fan is reduced.
It can be understood that the operation frequency of the compressor and the opening degree of the expansion valve in the air conditioner can be adjusted independently or jointly, when the operation frequency of the compressor and the opening degree of the expansion valve in the air conditioner are adjusted independently, the operation frequency of the compressor is controlled to be increased by the air conditioner, and the opening degree value of the expansion valve is controlled to be decreased by the air conditioner, so that the defrosting operation of the outdoor heat exchanger is realized; when the operation frequency of the compressor and the opening degree of the expansion valve in the air conditioner are adjusted in a combined manner, the operation frequency of the compressor and the adjustment of the opening degree value of the expansion valve in the air conditioner are not particularly limited, but the operation frequency of the compressor and the adjustment result of the opening degree value of the expansion valve are required to increase the temperature of the outdoor heat exchanger, so that the outdoor heat exchanger is defrosted.
And step S30, when the outdoor heat exchanger is defrosted, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner.
The air conditioner counts defrosting maintenance time of the outdoor heat exchanger, compares the defrosting maintenance time of the outdoor heat exchanger with preset defrosting time (the preset defrosting time can be flexibly set according to outdoor environment temperature and outdoor heat exchanger temperature, for example, the preset defrosting time is set to be 3 minutes), and if the defrosting maintenance time of the outdoor heat exchanger is less than or equal to the preset defrosting time, it indicates that defrosting of the outdoor heat exchanger is not completed, and the air conditioner is controlled to keep the current state; and when the defrosting maintaining time of the outdoor heat exchanger is longer than the preset defrosting time, the air conditioner judges that the defrosting of the outdoor heat exchanger is finished.
When defrosting of the outdoor heat exchanger is completed, the rotating speed of the indoor fan in the air conditioner is controlled to be increased, so that defrosting of the indoor heat exchanger in the air conditioner is achieved, wherein when defrosting of the outdoor heat exchanger is completed, according to a preset rotating speed increasing rule, the preset rotating speed increasing rule of the rotating speed of the indoor fan can be flexibly specified according to a specific scene, for example, the rotating speed of the indoor fan controlled by the air conditioner is increased by ten percent per minute, and it needs to be supplemented to be explained that the target rotating speed after the rotating speed of the indoor fan is increased does not exceed the maximum allowable operating rotating speed of the indoor fan.
And step S40, cleaning the indoor heat exchanger through condensed water formed by defrosting of the indoor heat exchanger.
Condensed water formed by defrosting of the indoor heat exchanger in the air conditioner leaves from the surface of the indoor heat exchanger and takes away dust on the surface of the indoor heat exchanger, and therefore the indoor heat exchanger is cleaned.
According to the embodiment of the invention, the indoor heat exchanger is controlled not to frost in the defrosting process of the outdoor heat exchanger, when the outdoor heat exchanger is defrosted, the rotating speed of the indoor fan in the air conditioner is increased, so that the indoor heat exchanger is defrosted, and the condensed water formed by defrosting is utilized to clean the indoor heat exchanger, so that the utilization rate of energy in a high-temperature sterilization mode is improved, the cleanliness of the indoor heat exchanger in the air conditioner is ensured, the cleaning frequency of the indoor heat exchanger is reduced, and the heat exchange capacity of the air conditioner is effectively ensured.
Further, on the basis of the first embodiment of the present invention, a second embodiment of the cleaning method of the indoor heat exchanger of the air conditioner is proposed.
This embodiment is a refinement of step S10 in the first embodiment, and is different from the first embodiment in that:
when the air conditioner is in a high-temperature sterilization mode, acquiring the outdoor environment temperature;
if the outdoor environment temperature is lower than the preset environment temperature, determining the duration of the high-temperature sterilization mode;
when the duration of the high-temperature sterilization mode is less than or equal to the preset duration, judging that the outdoor heat exchanger in the air conditioner is not frosted;
and when the duration of the high-temperature sterilization mode is longer than the preset duration, judging that the outdoor heat exchanger in the air conditioner is frosted.
Specifically, when the air conditioner is in the high-temperature sterilization mode, the air conditioner acquires the outdoor ambient temperature through a preset ambient temperature detection device (an ambient temperature detection device such as a thermometer or a temperature sensor); the air conditioner compares the outdoor environment temperature with a preset environment temperature (the preset environment temperature can be set according to a specific scene, for example, the preset environment temperature is set to be 20 ℃), and if the outdoor environment temperature is greater than or equal to the preset environment temperature, the frosting probability of the outdoor unit is low, and the subsequent steps are not executed; if the outdoor environment temperature is lower than the preset environment temperature, the frosting probability of the outdoor unit is high, and the air conditioner determines the duration of the high-temperature sterilization mode.
The air conditioner compares the duration of the high-temperature sterilization mode with a preset duration (the preset duration refers to the preset frosting time of the outdoor heat exchanger, for example, the preset duration is 10 minutes), and when the duration of the high-temperature sterilization mode is less than or equal to the preset duration, it is determined that the outdoor heat exchanger in the air conditioner is not frosted; and when the duration of the high-temperature sterilization mode is longer than the preset duration, judging that the outdoor heat exchanger in the air conditioner is frosted.
Whether outdoor heat exchanger frosts is accurately judged through detecting the duration of outdoor ambient temperature and high-temperature sterilization mode in this embodiment to carry out outdoor heat exchanger defrosting operation fast, make outdoor heat exchanger resume stronger heat transfer ability, with the validity of guaranteeing the high-temperature sterilization.
Further, on the basis of the above embodiments of the present invention, a third embodiment of the cleaning method for an indoor heat exchanger of an air conditioner according to the present invention is provided.
This embodiment is a refinement of step S20 in the first embodiment, and is different from the above embodiments in that:
in the embodiment, three specific implementation modes of defrosting the outdoor heat exchanger, namely,
the implementation mode is as follows: reduce the rotational speed of indoor fan in the air conditioner, increase the operating frequency of compressor, specifically, include:
step a1, if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and acquiring the operating frequency of a compressor in the air conditioner;
step a2, when the operating frequency of the compressor is less than the preset frequency threshold, increasing the operating frequency of the compressor to a target frequency, and operating the air conditioner according to the target frequency.
The air conditioner determines that the outdoor heat exchanger is frosted, controls to reduce the rotating speed of an indoor fan, and obtains the operating frequency of a compressor in the air conditioner; the air conditioner compares the operation frequency of the compressor with a preset frequency threshold (the preset frequency threshold is flexibly set according to specific scenes, the preset frequency threshold is not the maximum frequency value allowed to be used by the compressor, the preset frequency threshold refers to the preset operation frequency value of the compressor with a margin, for example, the preset frequency threshold is 80% of the maximum frequency value allowed to be used by the compressor), when the operation frequency of the compressor is less than the preset frequency threshold, the air conditioner increases the operation frequency of the compressor to a target frequency (the target frequency may be understood as a maximum frequency value allowed to be used by the compressor), and operates the air conditioner at the target frequency, wherein, the frequency increasing strategy for the air conditioner to increase the operating frequency of the compressor to the target frequency is not limited in this embodiment, for example, the frequency increase strategy is to increase by 1Hz/s until the operating frequency of the compressor increases to the target frequency.
In the first implementation manner of this embodiment, the air conditioner determines that the compressor has a larger frequency increase margin, and at this time, the air conditioner directly increases the operating frequency of the compressor to the target frequency and operates the air conditioner according to the target frequency, so that the stability of the operation of the air conditioner is ensured while the outdoor heat exchanger is defrosted quickly.
The implementation mode two is as follows: reduce the rotational speed of indoor fan in the air conditioner, reduce the opening value of expansion valve, specifically include:
step a3, when the operating frequency of the compressor is greater than or equal to a preset frequency threshold, reducing the opening of an expansion valve in the air conditioner to a target opening value, and operating the air conditioner according to the target opening value.
When the operating frequency of the compressor is greater than or equal to the preset frequency threshold, at this time, it is indicated that the operating frequency of the compressor is high, if the operating frequency of the compressor is directly increased to the target frequency, defrosting of the outdoor heat exchanger is slow, at this time, the air conditioner reduces the opening of the expansion valve to a target opening value (the target opening value may be set according to a specific scene, for example, the target opening value may be set to 10% of the maximum opening value), and the air conditioner is operated according to the target opening value.
In the second implementation manner of this embodiment, the air conditioner determines that the frequency increase margin of the compressor is small, and at this time, the air conditioner directly increases the operating frequency of the compressor to the target frequency, and rapid defrosting of the outdoor heat exchanger may not be achieved.
The implementation mode is three: reduce the rotational speed of indoor fan in the air conditioner, increase the operating frequency of compressor and reduce the opening value of expansion valve simultaneously, specifically include:
a21, when the air conditioner runs a target long time according to the target frequency, acquiring a temperature value of the outdoor heat exchanger;
step a22, when the temperature value of the outdoor heat exchanger is less than the outdoor environment temperature, reducing the opening degree of the expansion valve in the air conditioner to a target opening degree value, and operating the air conditioner according to the target opening degree value.
When the air conditioner operates for a target time length according to a target frequency (the target time length can be set according to a specific scene, for example, the target time length is set to be 1 minute), the air conditioner acquires a temperature value of the outdoor heat exchanger; and when the temperature value of the outdoor heat exchanger is lower than the outdoor environment temperature, judging that the outdoor heat exchanger is not completely defrosted, reducing the opening of the expansion valve to a target opening value by the air conditioner, and operating the air conditioner according to the target opening value.
In the third implementation manner of the embodiment, the rotating speed of the indoor fan in the air conditioner is reduced, the operating frequency of the compressor is increased, and meanwhile, the opening value of the expansion valve is reduced, so that the rapid defrosting operation of the outdoor heat exchanger is realized.
On the basis of the above embodiments of the present invention, a fourth embodiment of the cleaning method for an indoor heat exchanger of an air conditioner according to the present invention is provided.
This embodiment is a step after step S20 in the first embodiment, and is different from the above-described embodiments in that:
and when the rotating speed of the indoor fan in the air conditioner is detected to be reduced to the target rotating speed, controlling to reduce the rotating speed of the outdoor fan in the air conditioner.
When detecting that the rotating speed of the indoor fan in the air conditioner is reduced to the target rotating speed, the rotating speed of the outdoor fan in the air conditioner is controlled to be reduced, namely, the rotating speed of the indoor fan of the air conditioner is reduced to the target rotating speed so as to defrost the outdoor heat exchanger, and meanwhile, the rotating speed of the outdoor fan is controlled to be reduced by the air conditioner, so that the indoor heat exchanger stops frosting, the subsequent quick defrosting operation of the indoor heat exchanger is facilitated, the defrosting speed of the indoor heat exchanger is increased, and the heat exchange performance of the air conditioner is improved.
On the basis of the above embodiments of the present invention, a fifth embodiment of the cleaning method for an indoor heat exchanger of an air conditioner according to the present invention is provided.
This embodiment is a refinement of step S30 in the first embodiment, and is different from the above embodiments in that:
when the defrosting of the outdoor heat exchanger is finished, the rotation angle of an air deflector in the air conditioner is controlled and adjusted, and the rotating speed of an indoor fan in the air conditioner is increased, so that the indoor heat exchanger in the air conditioner is defrosted.
When the defrosting of the outdoor heat exchanger is finished, the rotation angle of an air deflector in the air conditioner is controlled and adjusted, and the rotation speed of an indoor fan in the air conditioner is increased, so that the indoor heat exchanger in the air conditioner is defrosted. In this embodiment, the adjusting of the rotation angle of the air deflector by the air conditioner means reducing the maximum rotation angle of the air deflector, so that the air deflector swings at a set angle in a small range, and thus, water vapor generated during defrosting operation of the indoor heat exchanger in the air conditioner does not blow onto a human body, and the air conditioner better meets the requirements of users.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where an air conditioner indoor heat exchanger cleaning program is stored on the computer-readable storage medium, and when the air conditioner indoor heat exchanger cleaning program is executed by a processor, the steps of the air conditioner indoor heat exchanger cleaning method described in any of the above are implemented.
When the computer readable storage medium in this embodiment runs, the following steps are executed: when the air conditioner is in a high-temperature sterilization mode, determining whether an outdoor heat exchanger in the air conditioner is frosted; if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner to defrost the outdoor heat exchanger; when the outdoor heat exchanger is defrosted, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner; and cleaning the indoor heat exchanger by using condensed water formed by defrosting of the indoor heat exchanger.
The specific embodiment of the computer readable storage medium of the present invention is substantially the same as the embodiments of the cleaning method for the indoor heat exchanger of the air conditioner, and will not be described in detail herein.
According to the embodiment of the invention, the indoor heat exchanger is controlled not to frost in the defrosting process of the outdoor heat exchanger, when the outdoor heat exchanger is defrosted, the rotating speed of the indoor fan in the air conditioner is increased, so that the indoor heat exchanger is defrosted, and the condensed water formed by defrosting is utilized to clean the indoor heat exchanger, so that the utilization rate of energy in a high-temperature sterilization mode is improved, the cleanliness of the indoor heat exchanger in the air conditioner is ensured, the cleaning frequency of the indoor heat exchanger is reduced, and the heat exchange capacity of the air conditioner is effectively ensured.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. 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 (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The cleaning method for the indoor heat exchanger of the air conditioner is characterized by comprising the following steps of:
when the air conditioner is in a high-temperature sterilization mode, determining whether an outdoor heat exchanger in the air conditioner is frosted;
if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner to defrost the outdoor heat exchanger;
when the outdoor heat exchanger is defrosted, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner;
and cleaning the indoor heat exchanger by using condensed water formed by defrosting of the indoor heat exchanger.
2. The method for cleaning an indoor heat exchanger of an air conditioner according to claim 1, wherein the step of determining whether an outdoor heat exchanger in the air conditioner is frosted while the air conditioner is in a high temperature sterilization mode comprises:
when the air conditioner is in a high-temperature sterilization mode, acquiring the outdoor environment temperature;
if the outdoor environment temperature is lower than the preset environment temperature, determining the duration of the high-temperature sterilization mode;
when the duration of the high-temperature sterilization mode is less than or equal to the preset duration, judging that the outdoor heat exchanger in the air conditioner is not frosted;
and when the duration of the high-temperature sterilization mode is longer than the preset duration, judging that the outdoor heat exchanger in the air conditioner is frosted.
3. The method for cleaning an indoor heat exchanger of an air conditioner according to claim 1, wherein if the outdoor heat exchanger is frosted, the step of reducing the rotation speed of an indoor fan in the air conditioner, and adjusting the operation frequency of a compressor in the air conditioner and/or adjusting the opening degree of an expansion valve in the air conditioner to defrost the outdoor heat exchanger comprises the following steps:
if the outdoor heat exchanger is frosted, reducing the rotating speed of an indoor fan in the air conditioner, and acquiring the operating frequency of a compressor in the air conditioner;
and when the operating frequency of the compressor is less than a preset frequency threshold value, increasing the operating frequency of the compressor to a target frequency, and operating the air conditioner according to the target frequency.
4. The method for cleaning an indoor heat exchanger of an air conditioner according to claim 3, wherein after the step of reducing the rotation speed of an indoor fan in the air conditioner and acquiring the operation frequency of a compressor in the air conditioner if the outdoor heat exchanger is frosted, the method comprises the following steps:
and when the operating frequency of the compressor is greater than or equal to a preset frequency threshold value, reducing the opening degree of an expansion valve in the air conditioner to a target opening value, and operating the air conditioner according to the target opening value.
5. The method for cleaning an indoor heat exchanger of an air conditioner according to claim 3, wherein after the step of increasing the operating frequency of the compressor to a target frequency and operating the air conditioner at the target frequency when the operating frequency of the compressor is less than a preset frequency threshold, the method comprises:
when the air conditioner operates the target long time according to the target frequency, acquiring a temperature value of the outdoor heat exchanger;
and when the temperature value of the outdoor heat exchanger is lower than the outdoor environment temperature, reducing the opening degree of an expansion valve in the air conditioner to a target opening value, and operating the air conditioner according to the target opening value.
6. The method for cleaning an indoor heat exchanger of an air conditioner according to claim 1, wherein if the outdoor heat exchanger is frosted, the method comprises the following steps of reducing the rotating speed of an indoor fan in the air conditioner, adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner, and enabling the outdoor heat exchanger to be frosted:
when the defrosting operation of the outdoor heat exchanger is executed for a preset defrosting time, judging that the defrosting of the outdoor heat exchanger is finished;
when the defrosting of the outdoor heat exchanger is finished, increasing the rotating speed of an indoor fan in the air conditioner to defrost the indoor heat exchanger in the air conditioner, wherein the defrosting step comprises the following steps:
and when the outdoor heat exchanger is defrosted, controlling and increasing the rotating speed of an indoor fan in the air conditioner according to a preset rotating speed increasing rule so as to defrost the indoor heat exchanger in the air conditioner.
7. The method for cleaning an indoor heat exchanger of an air conditioner according to claim 1, wherein if the outdoor heat exchanger is frosted, the method comprises the following steps of reducing the rotating speed of an indoor fan in the air conditioner, adjusting the operating frequency of a compressor in the air conditioner and/or adjusting the opening value of an expansion valve in the air conditioner, and enabling the outdoor heat exchanger to be frosted:
and when the rotating speed of the indoor fan in the air conditioner is detected to be reduced to the target rotating speed, controlling to reduce the rotating speed of the outdoor fan in the air conditioner.
8. The method for cleaning an indoor heat exchanger of an air conditioner according to any one of claims 1 to 7, wherein the step of increasing the rotation speed of an indoor fan in the air conditioner so that the indoor heat exchanger in the air conditioner defrosts when defrosting of the outdoor heat exchanger is completed comprises:
when the defrosting of the outdoor heat exchanger is finished, the rotation angle of an air deflector in the air conditioner is controlled and adjusted, and the rotating speed of an indoor fan in the air conditioner is increased, so that the indoor heat exchanger in the air conditioner is defrosted.
9. An air conditioner, characterized in that the air conditioner comprises: a memory, a processor and an indoor heat exchanger cleaning program stored on the memory and executable on the processor, the indoor heat exchanger cleaning program when executed by the processor implementing the steps of the method for cleaning an indoor heat exchanger of an air conditioner as claimed in any one of claims 1 to 8.
10. A computer-readable storage medium, wherein the computer-readable storage medium has stored thereon a cleaning program for an indoor heat exchanger of an air conditioner, which when executed by a processor, implements the steps of the cleaning method for an indoor heat exchanger of an air conditioner according to any one of claims 1 to 8.
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