CN114165906B - Control method of air conditioner, air conditioner and storage medium - Google Patents
Control method of air conditioner, air conditioner and storage medium Download PDFInfo
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- CN114165906B CN114165906B CN202010950807.7A CN202010950807A CN114165906B CN 114165906 B CN114165906 B CN 114165906B CN 202010950807 A CN202010950807 A CN 202010950807A CN 114165906 B CN114165906 B CN 114165906B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
- F24F11/67—Switching between heating and cooling modes
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- 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
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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
- F24F2110/20—Humidity
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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
Abstract
The invention discloses a control method of an air conditioner, which comprises the following steps: controlling the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency; when the running time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency is longer than or equal to a first time length, controlling the driving assembly to drive the switch door to a first preset position so as to reduce the air outlet area of the air outlet; when the running time of the air conditioner in the refrigeration mode is longer than or equal to a second time, the driving assembly is controlled to drive the switch door to be opened to a second preset position so as to increase the air outlet area, and the air conditioner is controlled to run in the heating mode, wherein the second time is longer than the first time. The invention also discloses an air conditioner and a computer readable storage medium, which achieve the effect of improving the system stability of the air conditioner.
Description
Technical Field
The present invention relates to the field of air conditioners, and in particular, to a method for controlling an air conditioner, and a computer-readable storage medium.
Background
With the increase of production level, air conditioners have become common electrical appliances in life and work of people. However, in the use process of the air conditioner, the air conditioner is easy to be clogged due to the heat exchanger, and the defect of reduction of the cooling/heating efficiency is caused, so that many air conditioners are provided with the self-cleaning function of the heat exchanger.
In a conventional air conditioner, when the heat exchanger is self-cleaned, the air conditioner is generally operated by reducing the rotation speed of the fan, so that the outer wall of the heat exchanger condenses and frosts condensed water to clean the heat exchanger. However, reducing the fan speed tends to cause the fan stall, which results in poor operation reliability of the motor of the air conditioner. This has a drawback that the system stability of the air conditioner is low.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The present invention provides a method for controlling an air conditioner, an air conditioner and a computer readable storage medium, which are capable of simplifying and improving the system stability of the air conditioner.
In order to achieve the above object, the present invention provides a method for controlling an air conditioner, the method comprising the steps of:
controlling the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency;
when the running time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency is greater than or equal to a first time length, controlling the driving assembly to drive the switch door to a first preset position so as to reduce the air outlet area of the air outlet; and
when the running time of the air conditioner in the refrigeration mode is longer than or equal to a second running time, the driving assembly is controlled to drive the switch door to be opened to a second preset position so as to increase the air outlet area, and the air conditioner is controlled to run in the heating mode, wherein the second running time is longer than the first running time.
Optionally, after the step of controlling the driving assembly to drive the switch door to a first preset position to reduce the air outlet area of the air outlet when the air conditioner operates according to a preset fan speed and a preset compressor frequency for a time period greater than or equal to a first time period, the method further includes:
acquiring high-pressure and low-pressure of a system of the air conditioner in a refrigeration mode, and determining the ratio of the high-pressure to the low-pressure; and
and adjusting the position of the opening and closing door according to the ratio.
Optionally, the step of adjusting the position of the opening/closing door when the air conditioner operates in the cooling mode according to the ratio includes:
the ratio is greater than a first ratio, the switching door is driven to be gradually opened from the first preset position, and the switching door is stopped when the ratio is less than or equal to the first ratio; and
and when the ratio is smaller than a second ratio, the switch door is driven to move from the first preset position to a third preset position, wherein when the switch door is positioned at the third preset position, the air outlet area of the air outlet is smaller than that when the switch door is positioned at the first preset position.
Optionally, before the step of controlling the air conditioner to operate the cooling mode according to the preset fan rotation speed and the preset compressor frequency, the method further includes:
acquiring a cleaning time interval, an air outlet temperature and/or an air outlet speed, wherein the cleaning time interval is a time interval between a current time point and a time point of a last cleaning function operation; and
and when the cleaning time interval, the air outlet temperature and/or the air outlet speed meet preset conditions, executing the step of controlling the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency.
Optionally, the preset condition includes at least one of:
the air outlet temperature is higher than a first temperature in the refrigeration mode, or the air outlet temperature is lower than a second air outlet temperature in the heating mode;
the air outlet speed is less than the target air outlet speed;
the cleaning time interval is greater than or equal to a preset time interval.
Optionally, the acquiring a cleaning time interval, an outlet air temperature, and/or an outlet air speed, where the cleaning time interval is after a step of a time interval between a current time point and a time point of a last cleaning function, further includes:
acquiring the running frequency of a compressor and the rotating speed of a fan of the air conditioner; and
and determining the first temperature or the second temperature according to the compressor frequency and the fan rotating speed.
Optionally, after the step of controlling the air conditioner to operate in the heating mode when the time length of the air conditioner operating in the cooling mode is greater than or equal to a second time length, the method further includes:
and when the running time of the air conditioner in the heating mode is longer than a third time, controlling the air conditioner to run according to preset running parameters.
Optionally, before the step of reducing the air outlet area to the first air outlet area for operation when the air conditioner operates according to the preset fan speed and the preset compressor frequency for a time period greater than or equal to the first time period, the method further includes:
acquiring indoor environment humidity and indoor environment humidity; and
and determining the first time length according to the indoor environment humidity and the indoor environment humidity.
Further, to achieve the above object, the present invention also provides an air conditioner including: the control method comprises the steps of an air outlet, a driving component, a switch door, a memory, a processor and a control program of the air conditioner, wherein the control program of the air conditioner is stored in the memory and can run on the processor, the switch door is arranged at the air outlet and used for adjusting the air outlet area of the air outlet, the driving component is used for driving the switch door, and the control program of the air conditioner is executed by the processor to realize the control method of the air conditioner.
Further, to achieve the above object, the present invention also provides a computer readable storage medium having stored thereon a control program of an air conditioner, which when executed by a processor, realizes the steps of the control method of the air conditioner as described above.
The control method of the air conditioner, the air conditioner and the computer readable storage medium provided by the embodiment of the invention control the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency, control the driving assembly to drive the switch door to a first preset position when the operation time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency is greater than or equal to a first time length so as to reduce the air outlet area of the air outlet, and control the driving assembly to drive the switch door to be opened to a second preset position so as to increase the air outlet area and control the operation mode of the air conditioner when the operation time of the air conditioner in the refrigeration mode is greater than or equal to a second time length, wherein the second time length is greater than the first time length. Therefore, the system stability of the air conditioner is low, and the effect of improving the stability of the air conditioner is achieved.
Drawings
Fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention;
fig. 2 is a front view of an indoor unit of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an indoor unit of a first air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an indoor unit of a second air conditioner according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an indoor unit of a third air conditioner according to an embodiment of the present invention;
fig. 6 is a schematic diagram of an indoor unit of a fourth air conditioner according to an embodiment of the present invention
FIG. 7 is a flowchart illustrating a control method of an air conditioner according to an embodiment of the present invention;
FIG. 8 is a flow chart illustrating a control method of an air conditioner according to another embodiment of the present invention;
fig. 9 is a flowchart illustrating a control method of an air conditioner according to still another 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.
In a conventional air conditioner, when the heat exchanger is self-cleaned, the air conditioner is generally operated by reducing the rotation speed of the fan, so that condensed water condenses on the outer wall of the heat exchanger and is frosted, thereby cleaning the heat exchanger. However, reducing the fan speed tends to cause the fan stall, which results in poor operation reliability of the motor of the air conditioner. This has a drawback that the system stability of the air conditioner is low.
In order to solve the above-mentioned drawbacks, an embodiment of the present invention provides an indoor unit with a switch door and an air conditioner control method, where the air conditioner control method mainly includes the following steps:
controlling the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency;
when the running time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency is longer than or equal to a first time length, controlling the driving assembly to drive the switch door to a first preset position so as to reduce the air outlet area of the air outlet;
when the running time of the air conditioner in the refrigeration mode is longer than or equal to a second time, the driving assembly is controlled to drive the switch door to be opened to a second preset position so as to increase the air outlet area, and the air conditioner is controlled to run in the heating mode, wherein the second time is longer than the first time.
Because can reduce the air-out area of air outlet through the regulating switch door, and then reduce the air quantity of flowing through the heat exchanger through reducing the air-out area to make the heat exchanger condense the comdenstion water and frost, thereby reach the effect of clean heat exchanger, consequently can avoid realizing the mode of frost through reducing the fan rotational speed in the traditional scheme, lead to the emergence of fan stall phenomenon easily, cause the motor operation reliability of air conditioner to worsen. Therefore, the system stability of the air conditioner is low, and the effect of improving the stability of the air conditioner is achieved.
As shown in fig. 1, fig. 1 is a schematic terminal structure diagram of a hardware operating environment according to an embodiment of the present invention.
The terminal of the embodiment of the invention can be an air conditioner.
As shown in fig. 1, the terminal 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 remote controller, a control panel, etc., 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., a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory such as a 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 terminal structure shown in fig. 1 is not intended to be limiting and 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-readable storage medium, may include therein an operating system, a network communication module, a user interface module, and a control program of an air conditioner.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting a background server and communicating data with the background server; the processor 1001 may be configured to call a control program of the air conditioner stored in the memory 1005, and perform the following operations:
controlling the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency;
when the running time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency is longer than or equal to a first time length, controlling the driving assembly to drive the switch door to a first preset position so as to reduce the air outlet area of the air outlet; and
when the running time of the air conditioner in the refrigeration mode is longer than or equal to a second running time, the driving assembly is controlled to drive the switch door to be opened to a second preset position so as to increase the air outlet area, and the air conditioner is controlled to run in the heating mode, wherein the second running time is longer than the first running time.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
acquiring high pressure and low pressure of a system of the air conditioner in a refrigeration mode, and determining the ratio of the high pressure to the low pressure; and
and adjusting the position of the opening and closing door according to the ratio.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
the ratio is greater than a first ratio, the switching door is driven to be gradually opened from the first preset position, and the switching door is stopped when the ratio is less than or equal to the first ratio; and
and when the ratio is smaller than a second ratio, the switch door is driven to move from the first preset position to a third preset position, wherein when the switch door is positioned at the third preset position, the air outlet area of the air outlet is smaller than that when the switch door is positioned at the first preset position.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
acquiring a cleaning time interval, an air outlet temperature and/or an air outlet speed, wherein the cleaning time interval is a time interval between a current time point and a time point of a last cleaning function operation; and
and when the cleaning time interval, the air outlet temperature and/or the air outlet speed meet preset conditions, executing the step of controlling the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
the air outlet temperature is higher than a first temperature in the refrigeration mode, or the air outlet temperature is lower than a second air outlet temperature in the heating mode;
the air outlet speed is less than the target air outlet speed;
the cleaning time interval is greater than or equal to a preset time interval.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
acquiring the running frequency of a compressor and the rotating speed of a fan of the air conditioner;
and determining the first temperature or the second temperature according to the compressor frequency and the fan rotating speed.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
and when the running time of the air conditioner in the heating mode is longer than a third time, controlling the air conditioner to run according to preset running parameters.
Further, the processor 1001 may call a control program of the air conditioner stored in the memory 1005, and also perform the following operations:
acquiring indoor environment humidity and indoor environment humidity; and
and determining the first time length according to the indoor environment humidity and the indoor environment humidity.
As one implementation scheme, referring to fig. 2 to 5, an indoor unit of an air conditioner according to an embodiment of the present invention includes a casing 10, and the casing 10 is provided with an air outlet 20 and an opening/closing door 30. The air conditioner is also provided with a driving assembly (not shown in the figure). The switch door 30 is disposed at the air outlet, and the driving assembly is used for driving the switch door 30 to move. After the position of the switch door 30 is changed, the air outlet area of the air outlet 20 can be changed.
Referring to fig. 3, as an implementation scheme, the switch door 30 is disposed below the air outlet 20, and the driving component may drive the switch door 30 to move along a moving direction shown in the figure, so as to change an overlapping area of the switch door 30 and the air outlet 20. When the overlapping area of the switch door 30 and the outlet 20 is larger, the shielding area of the switch door 30 to the outlet 20 is larger, and thus the outlet area of the outlet 20 is smaller.
Referring to fig. 4, as another implementation scheme, the switch door 30 may be disposed above the air outlet 20, so that the switch door 30 can move according to the moving direction shown in the figure under the driving of the driving component, and during the movement of the switch door along the moving direction shown in the figure, the overlapping area between the switch door 30 and the air outlet 20 gradually increases, and the air outlet area of the air outlet 20 gradually decreases. Can be used for
Referring to fig. 5, as another implementation scheme, the switching door 30 includes a first sub-door 31 and a second sub-door, and the first sub-door 31 and the second sub-door 32 can be driven by a driving assembly to approach or move away from each other to adjust the air outlet area of the air outlet.
Optionally, referring to fig. 6, the indoor unit of the air conditioner may further include a first air duct and a second air duct, a heat exchanger 40 is disposed at an air inlet of the first air duct and an air inlet of the second air duct, an axial flow air 50 is disposed in the first air duct, a centrifugal fan 60 is disposed in the second air duct, an air outlet of the second air duct is further communicated with the first air duct, and an air outlet of the air conditioner is communicated with an air outlet of the first air duct. Therefore, the air outlet speed of the air conditioner can be improved.
Referring to fig. 7, in an embodiment of the method for controlling an air conditioner of the present invention, the method for controlling an air conditioner includes the steps of:
s10, controlling the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency;
s20, when the running time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency is longer than or equal to a first time length, controlling the driving assembly to drive the switch door to a first preset position so as to reduce the air outlet area of the air outlet;
and S30, when the running time of the air conditioner in the refrigeration mode is longer than or equal to a second running time, controlling the driving assembly to drive the switch door to be opened to a second preset position so as to increase the air outlet area, and controlling the air conditioner to run in the heating mode, wherein the second running time is longer than the first running time.
Air conditioners are common electrical appliances in daily life and work of people. The air conditioner mainly functions to regulate the ambient temperature in the working space. When the air conditioner performs the environmental temperature adjustment, the indoor temperature is generally lowered by transferring indoor heat to the outside or raised by transferring outdoor heat to the inside through a refrigerant. In the process of heat transfer, the air conditioner needs to exchange heat with indoor air through a heat exchanger. Therefore, when dirt adheres to the surface of the heat exchanger, the heat exchange efficiency of the heat exchanger is affected, and the cooling or heating efficiency of the air conditioner is reduced.
In order to overcome the defect that the refrigerating or heating efficiency of the air conditioner is reduced due to the dirty and blocked heat exchanger, the traditional air conditioner generally directly reduces the rotating speed of a fan until the fan stops rotating, improves the frequency of a compressor of the air conditioner, enables the surface of the heat exchanger to be frosted based on water vapor in air, and then defrosts, so that the effect of cleaning the heat exchanger is achieved. Therefore, the conventional heat exchanger cleaning scheme easily causes the occurrence of the fan stalling phenomenon, so that the running reliability of the motor is poor. Therefore, in order to solve the above-mentioned defects of the conventional technology, the present embodiment further provides a control method of an air conditioner, which is applied to an air conditioner with an opening/closing door. The switch door is used for adjusting the air outlet area of the air outlet of the air conditioner.
In this embodiment, when the air conditioner needs to perform heat exchanger cleaning, the air conditioner may be controlled to enter a self-cleaning mode. The user can send a control instruction for entering the self-cleaning mode to the air conditioner through the control terminal, so that the air conditioner enters the self-cleaning mode when receiving the control instruction. The air conditioner can also automatically enter a self-cleaning mode according to system parameters. It is understood that the present embodiment does not specifically limit the manner in which the air conditioner enters the self-cleaning mode.
After entering the self-cleaning mode, the air conditioner can be controlled to operate the refrigeration mode according to the preset fan rotating speed and the preset compressor frequency.
Specifically, after the air conditioner enters the self-cleaning mode, the self-cleaning mode may be obtained corresponding to a preset fan speed and a preset compressor frequency. The preset fan speed and the preset compressor frequency may be data pre-stored in the air conditioner. After the air conditioner enters the self-cleaning mode, the pre-stored preset fan rotating speed and the pre-stored preset compressor frequency can be directly obtained. Or, the preset fan speed and the preset compressor frequency may also be data pre-stored in a server, and the air conditioner is provided with a network interface and can perform data interaction with the server. After the server receives the data request, the preset fan rotating speed and the preset compressor frequency corresponding to the self-cleaning mode of the air conditioner are sent to the air conditioner.
After the air conditioner obtains the preset fan rotating speed and the preset compressor frequency, the self fan rotating speed can be adjusted to the preset fan rotating speed, and the self compressor operating frequency can be adjusted to the preset compressor operating frequency. When the air conditioner operates according to the preset fan rotating speed and the preset compressor frequency, the surface temperature of a heat exchanger of an indoor unit of the air conditioner is lower than the condensation temperature corresponding to the indoor environment, and condensed water can be condensed on the surface of indoor heat exchange.
For example, the preset compressor frequency may be set to a maximum compressor frequency corresponding to the air conditioner, and the preset fan speed may be set to a minimum fan speed in a normal operation state of the air conditioner. It can be understood that, when the conventional air conditioner performs self-cleaning, the fan speed needs to be reduced below the lowest fan speed during normal operation, so as to frost the heat exchanger. This is because the air conditioner is designed so as to avoid frequent occurrence of the frosting phenomenon, and the heat exchanger is inevitably designed so that the air conditioner does not frost even if the air conditioner operates at the minimum wind speed in the normal refrigeration process.
Further, when the air conditioner runs according to the preset fan rotating speed and the preset compressor frequency for a time period which is greater than or equal to a first time period, the driving assembly is controlled to drive the switch door to a first preset position so as to reduce the air outlet area of the air outlet.
Specifically, the air conditioner is further provided with a clock, and the clock can be used for recording the running time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency.
Illustratively, when the air conditioner obtains the preset fan rotation speed and the preset compressor frequency to operate, and adjusts the fan rotation speed of the local end to the preset fan rotation speed, and adjusts the compressor frequency of the local end to the preset compressor frequency, the clock starts timing to record the operation time of the air conditioner according to the preset fan rotation speed and the preset compressor frequency.
When the running time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency is longer than or equal to the first time, the quantity of the condensed water condensed on the surface of the heat exchanger is judged to meet the requirement of the cleaning, namely the quantity of the condensed water is larger than or equal to the required quantity of the water requested at this time. Therefore, the driving assembly can be controlled to drive the switch door to a first preset position, so that the air outlet area of the air outlet is reduced.
It can be understood that, due to the reduction of the air outlet area, the air volume flowing through the indoor heat exchanger is also reduced, and therefore, the heat exchange process between the heat exchanger and the indoor air is slowed down. And the compressor is continuously operated, so that the temperature of the heat exchanger is reduced due to insufficient heat exchange. Because the surface of the heat exchanger is already condensed with condensed water, when the temperature of the heat exchanger is further reduced, the surface of the heat exchanger is frosted, and therefore dirt attached to the surface of the heat exchanger is peeled off the heat exchanger body.
Optionally, the first duration is an intermediate parameter for determining whether the surface of the heat exchanger has condensed out, which can meet the water volume requirement of the cleaning, so the first duration may be a fixed value determined by a manufacturer according to experience, or a fixed value determined based on different regional factors and seasonal factors, or a value determined by the air conditioner according to the current indoor environment temperature and/or humidity.
As an implementation scheme, the first duration may be a fixed value, and is pre-stored in a medium, so that the air conditioner may directly obtain the first duration. As another implementation scheme, the air conditioner may obtain location information of a local terminal and current time, determine current season information according to the location information and the current time, and obtain a time length associated with the season information as the first time length. As yet another implementation, the air conditioner may obtain an indoor ambient temperature and an indoor ambient humidity, and then determine the first duration based on the indoor ambient temperature and the indoor ambient humidity. The manner in which the air conditioner determines the first duration according to the indoor environment temperature and the indoor environment humidity may include at least one of the following:
a: the air conditioner is pre-stored with a two-dimensional table shown in table 1 below, and after the humidity air conditioner obtains the humidity and the temperature, the first time period can be obtained by table look-up based on the pre-stored two-dimensional table.
Table 1:
after the indoor environment temperature T and the indoor environment humidity H are obtained, the first time length T can be calculated according to the following formula:
t＝F(T，H)
the indoor environment temperature T is positively correlated with the first time period T, and the indoor environment humidity H is negatively correlated with the first time period.
Optionally, the driving assembly is controlled to drive the opening and closing door to a first preset position so as to reduce the air outlet area of the air outlet, and a high pressure and a low pressure of a system of the air conditioner in a refrigeration mode can be obtained, a ratio of the high pressure to the low pressure is determined, and then the position of the opening and closing door is adjusted according to the ratio when the air conditioner operates in the refrigeration mode. The phenomenon that the reliability of the system is reduced due to the fact that the ratio of the high-pressure to the low-pressure is too large in the frosting process of the air conditioner is avoided.
Specifically, the opening and closing door may be driven to be gradually opened from the first preset position when the ratio is greater than a first ratio, and stopped when the ratio is less than or equal to the first ratio; and when the ratio is smaller than a second ratio, driving the switch door to move from the first preset position to a third preset position, wherein when the switch door is positioned at the third preset position, the air outlet area of the air outlet is smaller than that when the switch door is positioned at the first preset position. And when the ratio is smaller than or equal to the first ratio and larger than or equal to the second ratio, keeping the switch door at the current position.
Further, the operation duration in the refrigeration mode after the air conditioner enters the cleaning mode may be obtained, that is, the time interval from the current time when the air conditioner operates the refrigeration mode according to the preset fan rotation speed and the preset compressor frequency is controlled. It will be appreciated that the second period of time is made up of two parts, one of which is the first period of time taken by the air conditioner to condense condensate on the surfaces of the heat exchanger. The second part is the time length that the air conditioner takes to froste the surface of the heat exchanger, so the time length from the moment when the air conditioner reduces the area of the air outlet to the current moment can be recorded by the timer after the air conditioner runs for the first time length. And determining the second time length according to the two part time lengths.
It should be noted that the second time period is set to determine the time when the air conditioner exits the cooling mode and then the heating mode. Therefore, as an implementation scheme, the time may also be an accumulated operation time according to the frosting period (that is, the time when the air conditioner adjusts the position of the opening and closing door to reduce the air outlet area of the air outlet and the time when the current time is reached). And when the accumulated running time of the frosting period is greater than a preset value, controlling the air conditioner to run in a heating mode.
When the air conditioner runs in a heating mode, the temperature of the heat exchanger rises, frost condensed on the surface of the heat exchanger melts, and dirt deposited on the surface of the heat exchanger is taken away. Thereby achieving the effect of cleaning the heat exchanger.
In the technical scheme disclosed in this embodiment, the air conditioner is controlled to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency, the air conditioner drives the switch door to a first preset position according to the condition that the operation time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency is greater than or equal to a first time length, so as to reduce the air outlet area of the air outlet, and when the operation time of the air conditioner in the refrigeration mode is greater than or equal to a second time length, the drive assembly is controlled to drive the switch door to be opened to a second preset position so as to increase the air outlet area and control the air conditioner to operate a heating mode, wherein the second time length is greater than the first time length. Therefore, the system stability of the air conditioner is low, and the effect of improving the stability of the air conditioner is achieved.
Referring to fig. 8, based on the foregoing embodiment, in another embodiment, before step S10, the method further includes:
s40, acquiring a cleaning time interval, an air outlet temperature and/or an air outlet speed;
and S50, judging whether the cleaning time interval, the air outlet temperature and/or the air outlet speed meet preset conditions.
In this embodiment, the air conditioner may acquire the cleaning time interval, the outlet air temperature, and/or the outlet air speed, and then determine whether the acquired cleaning time interval, the outlet air temperature, and/or the outlet air speed satisfy the preset condition, wherein the preset adjustment includes at least one of:
the air outlet temperature is higher than a first temperature in the refrigeration mode, or the air outlet temperature is lower than a second air outlet temperature in the heating mode;
the air outlet speed is less than the target air outlet speed;
the cleaning time interval is greater than or equal to a preset time interval.
And when the cleaning time interval, the air outlet temperature and/or the air outlet speed meet preset conditions, executing the steps from S10 to S30, and if not, not responding.
It should be noted that, when the heat exchanger is clogged, the heat exchange efficiency of the heat exchanger will be reduced, so that it may be detected that the outlet air temperature is higher than the first temperature in the cooling mode, or the outlet air temperature is lower than the second outlet air temperature in the heating mode, and if yes, it is determined that the heat exchanger is clogged, and then steps S10 to S30 are performed to clean the heat exchanger. The first temperature and the second temperature may be values obtained by the air conditioner according to its own operation parameters. For example, the air conditioner may obtain a current compressor frequency and a fan speed, and further obtain a first temperature and a second temperature associated with the current compressor frequency and the fan speed. Wherein the information relating the current compressor frequency and fan speed to the first temperature and the second temperature may be stored in a database in advance.
The target wind speed may be determined according to a current wind gear or a current fan speed, for example, a stored outlet wind speed associated with the current wind gear or the current fan speed may be obtained as the target wind speed. The air outlet speed of the air conditioner can be acquired through a wind speed detection device arranged at the air outlet.
In the technical scheme disclosed in this embodiment, a cleaning time interval, an air outlet temperature and/or an air outlet speed can be acquired, and whether the cleaning time interval, the air outlet temperature and/or the air outlet speed meet a preset condition is judged, and then the heat exchanger cleaning process is automatically entered according to a judgment result, so that a user does not need to manually enter a cleaning mode, and the effect of improving the convenience of the air conditioner is achieved.
Referring to fig. 9, based on any one of the above embodiments, in a further embodiment, after the step S30, the method further includes:
and S60, when the running time of the air conditioner in the heating mode is longer than a third time, controlling the air conditioner to run according to preset running parameters.
In this embodiment, by operating the heating mode, frost on the surface of the heat exchanger can be melted, so that the heat exchanger can be further washed by the melted liquid. And residual moisture is dried to avoid breeding bacteria. Therefore, the running time of the air conditioner in the heating mode can be obtained to serve as a decision condition for the air conditioner to exit the heating mode, and when the running time of the air conditioner in the heating mode is longer than the third running time, the air conditioner is controlled to run according to preset running parameters. The preset mode is a mode in which the air conditioner is running before entering the cleaning mode, or a mode set by a user through the control terminal, or a standby mode. Thus, the effect of improving the use convenience of the air conditioner is achieved.
In addition, an embodiment of the present invention further provides an air conditioner, where the air conditioner includes a memory, a processor, and a control program of the air conditioner that is stored in the memory and is executable on the processor, and the control program of the air conditioner, when executed by the processor, implements the steps of the control method of the air conditioner according to the above embodiments.
Furthermore, an embodiment of the present invention further provides a computer-readable storage medium, where a control program of an air conditioner is stored, and the control program of the air conditioner, when executed by a processor, implements the steps of the control method of the air conditioner according to the above embodiments.
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 phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising 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 or the portions contributing to the prior art may be embodied in the form of a software product, which is stored in a computer readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above and includes several instructions for causing a terminal device (which may be an air conditioner or the like) 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 (9)
1. The control method of the air conditioner is characterized in that the air conditioner comprises an air outlet, a driving assembly and a switch door, the switch door is arranged at the air outlet and used for adjusting the air outlet area of the air outlet, the driving assembly is used for driving the switch door, and the control method of the air conditioner comprises the following steps:
controlling the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency;
when the running time of the air conditioner according to the preset fan rotating speed and the preset compressor frequency is greater than or equal to a first time length, controlling the driving assembly to drive the switch door to a first preset position so as to reduce the air outlet area of the air outlet, acquiring the high pressure and the low pressure of a system of the air conditioner in a refrigeration mode, determining the ratio of the high pressure to the low pressure, adjusting the position of the switch door according to the ratio, wherein the first time length is the time length required by the air conditioner for condensing condensate water on the surface of a heat exchanger; and the number of the first and second groups,
when the air conditioner is in the time length that the air conditioner operated under the refrigeration mode is greater than or equal to the second time length, control drive assembly drive the switch door is opened to the second preset position to increase the air-out area, and control the air conditioner operation mode of heating, wherein, the second time length is greater than first time length, the second time length includes first time length and the air conditioner makes the heat exchanger surface frost required time length.
2. The control method of an air conditioner according to claim 1, wherein the step of adjusting the position of the opening and closing door when the air conditioner is operated in the cooling mode according to the ratio comprises:
when the ratio is larger than a first ratio, driving the switch door to be gradually opened from the first preset position, and stopping when the ratio is smaller than or equal to the first ratio;
and when the ratio is smaller than a second ratio, the switch door is driven to move from the first preset position to a third preset position, wherein when the switch door is positioned at the third preset position, the air outlet area of the air outlet is smaller than that when the switch door is positioned at the first preset position.
3. The method of controlling an air conditioner according to claim 1, wherein before the step of controlling the air conditioner to operate the cooling mode according to a preset fan speed and a preset compressor frequency, the method further comprises:
acquiring a cleaning time interval, an air outlet temperature and/or an air outlet speed, wherein the cleaning time interval is a time interval between a current time point and a time point of a last cleaning function operation; and
and when the cleaning time interval, the air outlet temperature and/or the air outlet speed meet preset conditions, executing the step of controlling the air conditioner to operate a refrigeration mode according to a preset fan rotating speed and a preset compressor frequency.
4. The control method of an air conditioner according to claim 3, wherein the preset condition includes at least one of:
the air outlet temperature is higher than a first temperature in a refrigeration mode, or the air outlet temperature is lower than a second temperature in a heating mode;
the air outlet speed is less than the target air outlet speed;
the cleaning time interval is greater than or equal to a preset time interval.
5. The method of claim 4, wherein after the step of obtaining the cleaning time interval, the outlet air temperature and/or the outlet air speed, wherein the cleaning time interval is a time interval between a current time point and a time point of a last operation of the cleaning function, the method further comprises:
acquiring the running frequency of a compressor and the rotating speed of a fan of the air conditioner; and
and determining the first temperature or the second temperature according to the compressor frequency and the fan rotating speed.
6. The method of controlling an air conditioner according to claim 1, wherein the step of controlling the air conditioner to operate in a heating mode when the air conditioner is operated in the cooling mode for a time period greater than or equal to a second time period further comprises:
and when the running time of the air conditioner in the heating mode is longer than a third time, controlling the air conditioner to run according to preset running parameters.
7. The method for controlling an air conditioner according to claim 1, wherein before the step of reducing the air outlet area of the air conditioner to the first air outlet area when the air conditioner is operated for a time period greater than or equal to the first time period according to the preset fan speed and the preset compressor frequency, the method further comprises:
acquiring indoor environment humidity and indoor environment humidity; and
and determining the first time length according to the indoor environment humidity and the indoor environment humidity.
8. An air conditioner, characterized in that the air conditioner comprises: the control method comprises the following steps of an air outlet, a driving component, a switch door, a memory, a processor and a control program of the air conditioner, wherein the control program of the air conditioner is stored on the memory and can run on the processor, the switch door is arranged at the air outlet and used for adjusting the air outlet area of the air outlet, the driving component is used for driving the switch door, and the control program of the air conditioner realizes the steps of the control method of the air conditioner according to any one of claims 1 to 7 when being executed by the processor.
9. A computer-readable storage medium, characterized in that a control program of an air conditioner is stored thereon, which when executed by a processor, implements the steps of the control method of an air conditioner according to any one of claims 1 to 7.
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| KR100656164B1 (en) * | 2005-12-21 | 2006-12-13 | 삼성전자주식회사 | Air conditioner and its control method |
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