CN115854479A - Self-cleaning method and device of air conditioner, air conditioner and storage medium - Google Patents
Self-cleaning method and device of air conditioner, air conditioner and storage medium Download PDFInfo
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Abstract
The invention discloses a self-cleaning method and device of an air conditioner, the air conditioner and a storage medium. The air conditioner comprises a fresh air fan, an exhaust fan, a main fan, an indoor heat exchanger, an air duct, an upper air outlet and a lower air outlet, wherein the upper air outlet and the lower air outlet are connected with the air duct, and the method comprises the following steps: if the air conditioner is in a refrigeration mode, detecting whether the air conditioner meets a self-cleaning condition or not according to the acquired indoor air dew point temperature and the temperature of the indoor heat exchanger; if the air conditioner meets the self-cleaning condition, after a shutdown control instruction is obtained, the upper air outlet, the lower air outlet and the main fan are closed, the fresh air fan and the exhaust fan are started, and the air conditioner is controlled to enter a heating mode so as to dry the indoor heat exchanger and the air duct. The invention can not only prevent the influence of moisture breeding mould on the health of users, but also prevent the heat in the self-cleaning period from entering the room, thereby improving the indoor refrigeration comfort.
Description
Technical Field
The embodiment of the invention relates to the technical field of air conditioners, in particular to a self-cleaning method and device of an air conditioner, the air conditioner and a storage medium.
Background
Through at the indoor location air conditioner, can improve the comfort level of indoor environment, nevertheless the air conditioner after a period of refrigeration operation, there is the comdenstion water in the wind channel of air conditioner and on the indoor heat exchanger, breeds mould easily, when leading to the air conditioner start once more, can blow off a share and mildy and rot, seriously influences user health and user experience. In the prior art, the cleaning of the air conditioner mainly comprises two modes of manual cleaning and self-cleaning, wherein the self-cleaning mode is usually timing automatic cleaning, the cleaning timeliness is poor, high-temperature sterilization self-cleaning is mainly adopted during cleaning, and during self-cleaning, high-temperature heat enters the room, the indoor refrigeration comfort is seriously influenced, so that the indoor refrigeration comfort is poor.
Disclosure of Invention
The embodiment of the invention provides a self-cleaning method and device of an air conditioner, the air conditioner and a storage medium, and aims to solve the problems that the existing air conditioner is easy to breed mildew and harmful to human health and the indoor refrigerating comfort during self-cleaning is poor.
In a first aspect, an embodiment of the present invention provides a self-cleaning method for an air conditioner, where the air conditioner includes a fresh air blower, an exhaust air blower, a main blower, an indoor heat exchanger, an air duct, and an upper air outlet and a lower air outlet connected to the air duct, and the method includes:
if the air conditioner is in a refrigeration mode, detecting whether the air conditioner meets a self-cleaning condition according to the acquired indoor air dew point temperature and the temperature of the indoor heat exchanger;
if the air conditioner meets the self-cleaning condition, after a shutdown control instruction is obtained, the upper air outlet, the lower air outlet and the main fan are closed, the fresh air fan and the exhaust fan are started, and the air conditioner is controlled to enter a heating mode so as to dry the indoor heat exchanger and the air duct.
In a second aspect, an embodiment of the present invention further provides a self-cleaning device for an air conditioner, including:
the detection unit is used for detecting whether the air conditioner meets a self-cleaning condition or not according to the acquired indoor air dew point temperature and the acquired indoor heat exchanger temperature if the air conditioner is in a refrigeration mode;
and the first control unit is used for closing the upper air outlet, the lower air outlet and the main fan after a shutdown control instruction is obtained if the air conditioner meets a self-cleaning condition, starting the fresh air fan and the exhaust fan, and controlling the air conditioner to enter a heating mode so as to dry the indoor heat exchanger and the air duct.
In a third aspect, an embodiment of the present invention further provides an air conditioner, where the air conditioner includes a controller, a fresh air blower, an exhaust air blower, a main air blower, an indoor heat exchanger, an air duct, and an upper air outlet and a lower air outlet connected to the air duct, the controller includes a memory and a processor, the memory stores a computer program, and the processor implements the method when executing the computer program.
In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored, and the computer program may implement the method when executed by a processor.
The embodiment of the invention provides a self-cleaning method and device of an air conditioner, the air conditioner and a storage medium. The air conditioner comprises a fresh air fan, an exhaust fan, a main fan, an indoor heat exchanger, an air duct, an upper air outlet and a lower air outlet, wherein the upper air outlet and the lower air outlet are connected with the air duct, and the method comprises the following steps: if the air conditioner is in a refrigeration mode, detecting whether the air conditioner meets a self-cleaning condition according to the acquired indoor air dew point temperature and the temperature of the indoor heat exchanger; if the air conditioner meets the self-cleaning condition, after a shutdown control instruction is obtained, the upper air outlet, the lower air outlet and the main fan are closed, the fresh air fan and the exhaust fan are started, and the air conditioner is controlled to enter a heating mode so as to dry the indoor heat exchanger and the air duct. According to the technical scheme of the embodiment of the invention, when the air conditioner meets the self-cleaning condition, the upper air outlet, the lower air outlet and the main fan are closed before the air conditioner is shut down, the fresh air fan and the exhaust fan are started, and the air conditioner is controlled to enter a heating mode to dry the indoor heat exchanger and the air duct, so that not only can the influence of damp breeding mildew on the body health of a user be avoided, but also heat during self-cleaning can be prevented from entering a room, and the indoor refrigeration comfort is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic flow chart illustrating a self-cleaning method for an air conditioner according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the air conditioner of FIG. 1;
FIG. 3 is a sub-flowchart illustrating a self-cleaning method for an air conditioner according to an embodiment of the present invention;
FIG. 4 is a sub-flowchart of a self-cleaning method for an air conditioner according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating a self-cleaning method for an air conditioner according to another embodiment of the present invention;
fig. 6 is a schematic flow chart illustrating a self-cleaning method of an air conditioner according to another embodiment of the present invention;
FIG. 7 is a flowchart illustrating a self-cleaning method of an air conditioner according to still another embodiment of the present invention;
fig. 8 is a simplified flowchart of a self-cleaning method for an air conditioner according to an embodiment of the present invention;
fig. 9 is a schematic block diagram of a self-cleaning apparatus of an air conditioner according to an embodiment of the present invention;
fig. 10 is a schematic block diagram of an air conditioner according to an embodiment of the present invention;
reference numerals:
10. an air conditioner; 11. a fresh air fan; 12. an exhaust fan; 13. a main fan; 14. an indoor heat exchanger; 15. an air duct; 16. an upper air outlet; 17. and a lower air outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a self-cleaning method of an air conditioner according to an embodiment of the present invention. The self-cleaning method of the air conditioner will be described in detail. As shown in fig. 1, the method comprises the following steps S110-S120.
And S110, if the air conditioner is in a refrigeration mode, detecting whether the air conditioner meets a self-cleaning condition or not according to the acquired indoor air dew point temperature and the acquired indoor heat exchanger temperature.
In this embodiment, when the air conditioner is in a cooling mode, an indoor air dew point temperature and an indoor heat exchanger temperature are obtained, and whether the air conditioner meets a self-cleaning condition is detected according to the indoor air dew point temperature and the indoor heat exchanger temperature, where the indoor heat exchanger temperature is a temperature detected by a temperature sensing bulb on the indoor heat exchanger. In this embodiment, as shown in fig. 2, the air conditioner 10 includes a fresh air blower 11, an exhaust air blower 12, a main blower 13, an indoor heat exchanger 14, an air duct 15, and an upper air outlet 16 and a lower air outlet 17 connected to the air duct 15. The air conditioner 10 further comprises a fresh air outlet and a fresh air inlet, wherein the fresh air outlet and the fresh air inlet are opened and closed along with the opening of the fresh air fan 11.
Further, for ease of understanding, the indoor air dew point temperature, the indoor heat exchanger temperature, and the relationship between the indoor air dew point temperature and the indoor heat exchanger temperature will now be described.
In this embodiment, the indoor air dew point temperature represents the moisture content of air, and when the moisture content of air is large, the corresponding dew point temperature is higher in the same environment, and at this time, if the temperature of the indoor heat exchanger is lower than the indoor air dew point temperature, a part of water in the air is precipitated, and condensed water is generated. As the condensed water precipitates, the moisture content decreases and the dew point temperature decreases. Understandably, the dew point temperature represents the difficulty of analyzing out water in the air, and the lower the dew point temperature, the more difficult the water is to be separated out. It should be noted that, in this embodiment, the temperature of the indoor heat exchanger is related to the operation load of the air conditioner, that is, when the temperature difference between the indoor environment temperature and the set target temperature is large, the operation load of the air conditioner is high, and the air conditioner can be operated at a high frequency to quickly reach the set target temperature, and at this time, the temperature of the indoor heat exchanger is relatively low; conversely, when the set target temperature is lower than the ambient temperature, the air conditioner has a low operating load, and can operate at a low frequency to reach the set target temperature, and at this time, the temperature of the indoor heat exchanger is higher. It should be further noted that, in this embodiment, under the same operation load of the air conditioner, the temperature of the indoor heat exchanger is also related to the setting of the air damper of the indoor unit, when the setting air damper is higher, the temperature of the indoor heat exchanger is higher, and when the setting air damper is lower, the temperature of the indoor heat exchanger is lower. For example: at 27 ℃ indoors, the indoor heat exchanger temperature at 16 ℃ is set lower than the indoor heat exchanger temperature at 24 ℃; under the condition that the indoor temperature is 27 ℃ and 16 ℃, the temperature of the indoor heat exchanger with the super-strong wind gear is higher than that of the indoor heat exchanger with the low wind gear. According to the analysis, when the indoor air dew point temperature is greater than or equal to the indoor heat exchanger temperature, condensate water is separated out, the indoor air dew point temperature can be reduced along with the separation of the condensate water, the indoor environment temperature gradually reaches the set target temperature along with the refrigerating operation, the indoor heat exchanger temperature gradually rises, and at the moment, the indoor heat exchanger temperature can be gradually higher than the indoor air dew point temperature.
In some embodiments, such as the present embodiment, as shown in FIG. 3, the step S110 may include steps S111-S112.
S111, acquiring the dew point temperature of indoor air and the temperature of an indoor heat exchanger;
and S112, determining the maximum continuous operation time and the accumulated operation time according to the indoor air dew point temperature and the indoor heat exchanger temperature, and detecting whether the air conditioner meets a self-cleaning condition according to the maximum continuous operation time and the accumulated operation time.
In the embodiment, the dew point temperature of indoor air and the temperature of an indoor heat exchanger are obtained, and whether the dew point temperature of the indoor air is greater than the temperature of the indoor heat exchanger is judged; if the temperature of the indoor heat exchanger is not greater than the dew point temperature of the indoor air, indicating that condensate water is separated out, acquiring continuous operation time, updating operation times, and judging whether the operation times are preset operation times or not, wherein the continuous operation time is the operation time when the dew point temperature of the indoor air is greater than or equal to the temperature of the indoor heat exchanger; the preset operation times are 1 time; if the operation times are the preset operation times, the first time that the indoor air dew point temperature is greater than or equal to the indoor heat exchanger temperature is indicated, and the continuous operation time is taken as the maximum continuous operation time and the accumulated operation time; and if the operation times are not the preset operation times, which indicates that the indoor air dew point temperature is not greater than or equal to the indoor heat exchanger temperature for the first time, updating the maximum continuous operation time and the accumulated operation time according to the continuous operation time. Specifically, whether the continuous operation time is greater than the maximum continuous operation time is judged, and if the continuous operation time is greater than the maximum continuous operation time and indicates that the maximum continuous operation time needs to be updated, the continuous operation time is taken as the maximum continuous operation time; calculating the sum of the continuous operation time and the accumulated operation time as the accumulated operation time.
In some embodiments, such as the present embodiment, as shown in FIG. 4, the step S112 may include steps S1121-S1122.
S1121, if the maximum continuous operation time is not less than a preset continuous operation time and/or the accumulated operation time is not less than a preset accumulated operation time, determining that the air conditioner meets a self-cleaning condition;
and S1122, if the maximum continuous operation time is less than the preset continuous operation time and the accumulated operation time is less than the preset accumulated operation time, determining that the air conditioner does not meet a self-cleaning condition.
In this embodiment, after determining the maximum continuous operation time and the accumulated operation time, determining whether the maximum continuous operation time is less than the preset continuous operation time, where the preset continuous operation time is 6min; if the maximum continuous operation time is not less than the preset continuous operation time, judging that the air conditioner meets a self-cleaning condition; if the maximum continuous operation time is less than the preset continuous operation time, continuously judging whether the accumulated operation time is less than the preset accumulated operation time; if the accumulated running time is not less than the preset accumulated running time, judging that the air conditioner meets a self-cleaning condition; otherwise, if the accumulated running time is less than the preset accumulated running time, the air conditioner is judged not to meet the self-cleaning condition. For convenience of understanding, the maximum continuous operation time and the accumulated operation time are respectively assumed to be t1 and t2, namely when t1 is more than or equal to 6min or t2 is more than or equal to 15min, the air conditioner is judged to meet the self-cleaning condition; and when t1<6min and t2<15min, determining that the air conditioner does not meet the self-cleaning condition.
S120, if the air conditioner meets the self-cleaning condition, after a shutdown control instruction is obtained, the upper air outlet, the lower air outlet and the main fan are closed, the fresh air fan and the exhaust fan are started, and the air conditioner is controlled to enter a heating mode to dry the indoor heat exchanger and the air duct.
In this embodiment, if the air conditioner satisfies the self-cleaning condition, after a shutdown control instruction is obtained, the upper air outlet, the lower air outlet, and the main blower are closed, and the fresh air blower and the exhaust air blower are opened. It should be noted that, in this embodiment, after the air conditioner is controlled to enter the heating mode, the low-frequency operation is performed to a preset drying time, where the preset drying time is 10min. It should be further noted that, in this embodiment, if the air conditioner satisfies a self-cleaning condition, it indicates that condensed water is generated on the indoor heat exchanger, and during a cooling period of the air conditioner, the condensed water is drawn into the air duct by the main blower, and when the generated condensed water is too much, after the cooling operation is finished, water in the air duct is not evaporated to the air in time, that is, is not evaporated to the dryness in time, and the remaining condensed water is likely to grow mold; during self-cleaning, the upper air outlet, the lower air outlet and the main fan are closed, and the fresh air fan and the exhaust fan are opened, so that outdoor air is sucked through the fresh air fan, air in the air channel is exhausted through the exhaust fan, a complete air circulation is formed, heat generated when residual condensed water on the air channel and the indoor heat exchanger is evaporated can be guided to the outdoor through the air circulation, and the indoor refrigeration comfort is improved.
Fig. 5 is a schematic flow chart of a self-cleaning method of an air conditioner according to another embodiment of the present invention, as shown in fig. 5, in this embodiment, the method includes steps S210 to S230, where steps S210 to S220 are the same as steps S110 to S120, and are not repeated here, and step S230 is added.
And S230, controlling the opening of the main fan according to the temperature of the indoor heat exchanger.
In this embodiment, whether the temperature of the indoor heat exchanger is greater than a first preset temperature threshold is judged, wherein the first preset temperature threshold is 58 ℃; and if the temperature of the indoor heat exchanger is greater than the first preset temperature threshold value, starting the main fan. It should be noted that, in this embodiment, after the main fan is turned on, the rotation speed value of the main fan is increased, and as the rotation speed value of the main fan is increased, the temperature of the indoor heat exchanger is reduced, and when the temperature of the indoor heat exchanger is greater than a second preset temperature threshold and not greater than the first preset temperature threshold, the rotation speed value of the main fan is kept unchanged, where the second preset temperature threshold is 54 ℃; and if the temperature of the indoor heat exchanger is not greater than the second preset temperature threshold value, reducing the rotating speed value of the main fan. In this embodiment, if the temperature of the indoor heat exchanger is assumed to be Th, when 54 ℃ < Th ≦ 58 ℃, the rotation speed value of the main fan is kept unchanged; if Th is less than or equal to 54 ℃, reducing the rotating speed value of the main fan; and if Th is greater than 58 ℃, increasing the rotating speed value of the main fan. It should be noted that, in this embodiment, after the main fan is turned on according to the temperature of the indoor heat exchanger, the rotation speed of the main fan is also adjusted to maintain the temperature of the indoor heat exchanger between 54 ℃ and 58 ℃, because the temperature of the indoor heat exchanger reflects the temperature of the refrigerant and further reflects the pressure of the refrigerant, and when the temperature is too high or too low, the pressure of the refrigerant will become higher and lower accordingly, which affects the reliability of the air conditioner, so that the reliability of the air conditioner can be improved by maintaining the temperature of the indoor heat exchanger between 54 ℃ and 58 ℃.
Fig. 6 is a schematic flow chart of a self-cleaning method of an air conditioner according to another embodiment of the present invention, as shown in fig. 6, in this embodiment, the method includes steps S310 to S350, where steps S310 to S330 are the same as steps S210 to S230, and are not repeated here, and step S340 and step S350 are added in detail.
S340, if the running time of the air conditioner entering the heating mode reaches the preset drying time, closing the main fan to obtain the outdoor temperature and the exhaust air temperature;
s350, determining whether to close the fresh air fan and the exhaust air fan or not according to the outdoor temperature and the exhaust air temperature.
In this embodiment, if the operation time of the air conditioner entering the heating mode reaches a preset drying time, where the preset drying time is 10min, the main fan is turned off, the outdoor temperature and the exhaust temperature are obtained, and whether the fresh air fan and the exhaust fan are turned off is determined according to the outdoor temperature and the exhaust temperature. Specifically, it is assumed that the discharge air temperature and the outdoor temperature are respectively T Row board And T Outer cover Calculating the temperature difference between the exhaust air temperature and the outdoor temperature, and judging whether the temperature difference is not greater than a preset temperature difference, wherein the preset temperature difference is 2 ℃; if the temperature difference is not greater than the predetermined temperature difference, i.e., if T Row board -T Outer cover The temperature is less than or equal to 2 ℃, the fresh air fan and the exhaust fan are closed, if the temperature difference is greater than the preset temperature difference, namely T Row board -T Outer cover >The step of obtaining the outdoor temperature and the exhaust air temperature is executed until T is reached at 2 DEG C Row board -T Outer cover And closing the fresh air fan and the exhaust fan at the temperature of less than or equal to 2 ℃. It should be noted that, in this embodiment, after the self-cleaning is finished, if T is reached Row board -T Outer cover >And 2 ℃, which indicates that the temperature in the air duct is high, and the heat is transferred to the indoor space to influence the refrigeration comfort of users, so that the fresh air fan and the exhaust fan cannot be closed at the moment, and the opening states of the fresh air fan and the exhaust fan are kept to circulate the air and transfer the heat to the outdoor space. In practical application, after self-cleaning is finished, the air temperature in the air duct is about 50-60 ℃, the outdoor temperature is about 30-35 ℃,the two parts of air are controlled to exchange heat until the temperature of the air in the air channel is close to the temperature of the outdoor side, and then the fresh air fan and the exhaust fan are closed, so that the refrigeration comfort of users can be improved. It should be noted that, in other embodiments, in order to shorten the self-cleaning time, the upper air outlet may be opened, and the step of obtaining the outdoor temperature and the exhaust air temperature may be performed until T Row board -T Outer cover And closing the upper air outlet, the fresh air fan and the exhaust fan at the temperature of less than or equal to 2 ℃. In practical application, the height of a user room is more than 2.8m, the height of a human body activity area is less than 2m, and by combining the natural floating phenomenon of hot air, when heat generated by the air conditioner after self-cleaning floats to the top of the indoor room from the upper air outlet, the refrigerating comfort of the human body activity area is not influenced, meanwhile, the heat treatment speed in the air duct can be increased, and the time of the whole self-cleaning process is shortened.
Fig. 7 is a schematic flow chart of a self-cleaning method of an air conditioner according to still another embodiment of the present invention, as shown in fig. 7, in this embodiment, the method includes steps S410 to S460, where steps S410 to S450 are the same as steps S310 to S350, and are not repeated herein, and step S460 is added.
And S460, if the air conditioner does not meet the self-cleaning condition, executing shutdown operation after the shutdown control instruction is acquired.
In this embodiment, if the air conditioner does not satisfy the self-cleaning condition, which indicates that the maximum duration time that the temperature of the indoor heat exchanger is not greater than the dew point temperature of the indoor air is less than a preset duration time, and the accumulated duration time is less than a preset accumulated duration time, that is, when t1 is less than 6min and t2 is less than 15min, the air conditioner does not need to perform a self-cleaning operation, and then a shutdown operation is performed after the shutdown control instruction is obtained.
For convenience of understanding, fig. 8 is a simplified flow chart of a self-cleaning method of an air conditioner according to an embodiment of the present invention. For the convenience of description, it is assumed that the indoor air dew-point temperature and the indoor heat exchanger temperature are Td and Th, respectively, the maximum continuous operation time and the indoor heat exchanger temperatureThe cumulative operation time is t1 and t2, respectively, as shown in fig. 8, if the air conditioner is in the cooling mode, td and Th are obtained, and t1 and t2 are recorded according to Td and Th; judging that t1 is more than or equal to 6min or t2 is more than or equal to 15min, if not, not executing self-cleaning operation after shutdown is detected; if so, closing the upper air outlet, the lower air outlet and the main fan, opening the fresh air fan and the exhaust fan, and controlling the air conditioner to enter a heating mode to dry the indoor heat exchanger and the air duct; if the preset drying time is reached for 10min, the outdoor temperature T is obtained Outer cover And the temperature T of the exhaust air Row board Judgment of T Row board -T Outer cover Not more than 2 ℃, if not, returning to execute the steps of obtaining the outdoor temperature and the exhaust temperature and judging T Row board -T Outer cover A step of not more than 2 ℃; if so, the fresh air fan and the exhaust fan are closed. It should be noted that, in another embodiment, during the period when the air conditioner enters the heating mode to dry the indoor heat exchanger and the air duct, the opening of the main fan may be controlled according to the temperature of the indoor heat exchanger, if the main fan is opened, the main fan is closed when the preset drying time is reached, and then T is obtained Outer cover And T Row board . Understandably, in yet another embodiment, if T Row board -T Outer cover >The upper air outlet can be opened at 2 ℃ when the temperature is T Row board -T Outer cover And when the temperature is less than or equal to 2 ℃, closing the upper air outlet, the fresh air fan and the exhaust fan.
Fig. 9 is a schematic block diagram of a self-cleaning apparatus 200 of an air conditioner according to an embodiment of the present invention. As shown in fig. 9, the present invention also provides a self-cleaning apparatus 200 of an air conditioner corresponding to the above self-cleaning method of an air conditioner. The self-cleaning apparatus 200 of the air conditioner, which includes a unit for performing the above-described self-cleaning method of the air conditioner, may be configured in the air conditioner. Specifically, referring to fig. 9, the self-cleaning apparatus 200 of the air conditioner includes a detection unit 201 and a first control unit 202.
The detecting unit 201 is configured to detect whether the air conditioner satisfies a self-cleaning condition according to an obtained indoor air dew point temperature and an obtained indoor heat exchanger temperature if the air conditioner is in a cooling mode; the first control unit 202 is configured to, if the air conditioner meets a self-cleaning condition, close the upper air outlet, the lower air outlet, and the main fan after obtaining a shutdown control instruction, start the fresh air fan and the exhaust fan, and control the air conditioner to enter a heating mode to dry the indoor heat exchanger and the air duct.
In some embodiments, such as this embodiment, the detection unit 201 includes an acquisition unit and a detection subunit.
The acquiring unit is used for acquiring the dew point temperature of indoor air and the temperature of an indoor heat exchanger; the detection subunit is used for determining the maximum continuous operation time and the accumulated operation time according to the indoor air dew point temperature and the indoor heat exchanger temperature, and detecting whether the air conditioner meets the self-cleaning condition or not according to the maximum continuous operation time and the accumulated operation time.
In some embodiments, for example, in the present embodiment, the detecting subunit includes a first judging unit, a first acting unit, an updating unit, a first judging unit, and a second judging unit.
The first judgment unit is used for acquiring continuous operation time, updating operation times and judging whether the operation times are preset operation times or not if the temperature of the indoor heat exchanger is not greater than the indoor air dew point temperature; the first mode is used for taking the continuous operation time as the maximum continuous operation time and the accumulated operation time if the operation times are the preset operation times; the updating unit is used for updating the maximum continuous operation time and the accumulated operation time according to the continuous operation time if the operation times are not the preset operation times; the first judging unit is used for judging that the air conditioner meets a self-cleaning condition if the maximum continuous operation time is not less than a preset continuous operation time and/or the accumulated operation time is not less than a preset accumulated operation time; the second determination unit is used for determining that the air conditioner does not meet a self-cleaning condition if the maximum continuous operation time is less than the preset continuous operation time and the accumulated operation time is less than the preset accumulated operation time.
In some embodiments, such as this embodiment, the updating unit includes a second acting unit and a calculating unit.
Wherein the second acting unit is configured to act as the maximum duration time if the duration time is greater than the maximum duration time; the calculation unit is configured to calculate a sum of the duration operation time and the accumulated operation time as the accumulated operation time.
In some embodiments, such as the present embodiment, the self-cleaning apparatus 200 of the air conditioner further includes a second control unit, a turn-off acquiring unit, a determining unit, and an acquisition performing unit.
The second control unit is used for controlling the opening of the main fan according to the temperature of the indoor heat exchanger; the closing acquisition unit is used for closing the main fan and acquiring outdoor temperature and exhaust air temperature if the running time of the air conditioner entering the heating mode reaches preset drying time; the determining unit is used for determining whether to close the fresh air fan and the exhaust air fan according to the outdoor temperature and the exhaust air temperature; the obtaining and executing unit is used for executing shutdown operation after the shutdown control instruction is obtained if the air conditioner does not meet the self-cleaning condition.
In some embodiments, for example, in the present embodiment, the second control unit includes a second determination unit, an opening unit, an increasing unit, a holding unit, and a decreasing unit.
The second judging unit is used for judging whether the temperature of the indoor heat exchanger is greater than a first preset temperature threshold value or not; the starting unit is used for starting the main fan if the temperature of the indoor heat exchanger is greater than the first preset temperature threshold; the increasing unit is used for increasing the rotating speed value of the main fan; the maintaining unit is used for maintaining the rotating speed value of the main fan unchanged if the temperature of the indoor heat exchanger is greater than a second preset temperature threshold and not greater than the first preset temperature threshold; the reducing unit is used for reducing the rotating speed value of the main fan if the temperature of the indoor heat exchanger is not greater than the second preset temperature threshold value.
In some embodiments, for example, in this embodiment, the determining unit includes a third judging unit, a closing unit, a first executing unit, and a second executing unit.
The third judging unit is used for calculating the temperature difference between the exhaust air temperature and the outdoor temperature and judging whether the temperature difference is not greater than a preset temperature difference or not; the closing unit is used for closing the fresh air fan and the exhaust fan if the temperature difference is not greater than the preset temperature difference; the first execution unit is used for executing the step of acquiring the outdoor temperature and the exhaust temperature if the temperature difference is greater than the preset temperature difference, and closing the fresh air fan and the exhaust fan until the temperature difference is not greater than the preset temperature difference; the second execution unit is used for opening the upper air outlet, executing the step of acquiring the outdoor temperature and the exhaust temperature until the temperature difference is not greater than the preset temperature difference, and closing the upper air outlet, the fresh air fan and the exhaust fan.
The self-cleaning apparatus of the air conditioner described above may be implemented in the form of a computer program that may be run on the air conditioner as shown in fig. 10.
Referring to fig. 10, fig. 10 is a schematic block diagram of an air conditioner according to an embodiment of the present invention. The air conditioner 300 is an apparatus having a self-cleaning function.
Referring to fig. 10, the air conditioner 300 includes a processor 302, a memory, which may include a nonvolatile storage medium 303 and an internal memory 304, and a network interface 305 connected through a system bus 301.
The nonvolatile storage medium 303 may store an operating system 3031 and a computer program 3032. The computer program 3032, when executed, may cause the processor 302 to perform a method of self-cleaning an air conditioner.
The processor 302 is used to provide computing and control capabilities to support the operation of the overall air conditioner 300.
The internal memory 304 provides an environment for running a computer program 3032 in the non-volatile storage medium 303, and the computer program 3032, when executed by the processor 302, causes the processor 302 to perform a self-cleaning method of the air conditioner.
The network interface 305 is used for network communication with other devices. It will be understood by those skilled in the art that the configuration shown in fig. 10 is a block diagram of only a portion of the configuration associated with the inventive arrangements and is not intended to limit the air conditioner 300 to which the inventive arrangements are applied, and that a particular air conditioner 300 may include more or less components than those shown, or some components may be combined, or have a different arrangement of components.
Wherein the processor 302 is configured to run a computer program 3032 stored in the memory to implement any of the embodiments of the self-cleaning method of the air conditioner described above.
It should be understood that, in the embodiment of the present invention, the Processor 302 may be a Central Processing Unit (CPU), and the Processor 302 may also be other general-purpose processors, digital Signal Processors (DSPs), application Specific Integrated Circuits (ASICs), field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. Wherein a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will be understood by those skilled in the art that all or part of the flow of the method implementing the above embodiments may be implemented by a computer program instructing relevant hardware. The computer program may be stored in a storage medium, which is a computer-readable storage medium. The computer program is executed by at least one processor in the computer system to implement the flow steps of the embodiments of the method described above.
Accordingly, the present invention also provides a storage medium. The storage medium may be a computer-readable storage medium. The storage medium stores a computer program. The computer program, when executed by a processor, causes the processor to perform any of the embodiments of the self-cleaning method of an air conditioner described above.
The storage medium may be a usb disk, a removable hard disk, a Read-Only Memory (ROM), a magnetic disk, or an optical disk, which can store various computer readable storage media.
Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and that the components and steps of the examples have been described in a functional general in the foregoing description for the purpose of illustrating clearly the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the several embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative. For example, the division of each unit is only one logic function division, and there may be another division manner in actual implementation. For example, various elements or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented.
The steps in the method of the embodiment of the invention can be sequentially adjusted, combined and deleted according to actual needs. The units in the device of the embodiment of the invention can be merged, divided and deleted according to actual needs. In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a storage medium. Based on such understanding, the technical solution of the present invention may be substantially or partially contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing an air conditioner to perform all or part of the steps of the method according to the embodiments of the present invention.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, while the invention has been described with respect to the above-described embodiments, it will be understood that the invention is not limited thereto but may be embodied with various modifications and changes.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (15)
1. A self-cleaning method of an air conditioner is characterized in that the air conditioner comprises a fresh air fan, an exhaust fan, a main fan, an indoor heat exchanger, an air duct, an upper air outlet and a lower air outlet, wherein the upper air outlet and the lower air outlet are connected with the air duct, and the method comprises the following steps:
if the air conditioner is in a refrigeration mode, detecting whether the air conditioner meets a self-cleaning condition according to the acquired indoor air dew point temperature and the temperature of the indoor heat exchanger;
if the air conditioner meets the self-cleaning condition, after a shutdown control instruction is obtained, the upper air outlet, the lower air outlet and the main fan are closed, the fresh air fan and the exhaust fan are started, and the air conditioner is controlled to enter a heating mode so as to dry the indoor heat exchanger and the air duct.
2. The method as claimed in claim 1, wherein the step of detecting whether the air conditioner satisfies a self-cleaning condition based on the acquired indoor air dew point temperature and indoor heat exchanger temperature comprises:
acquiring the dew point temperature of indoor air and the temperature of an indoor heat exchanger;
and determining the maximum continuous operation time and the accumulated operation time according to the indoor air dew point temperature and the indoor heat exchanger temperature, and detecting whether the air conditioner meets a self-cleaning condition according to the maximum continuous operation time and the accumulated operation time.
3. The method of claim 2, wherein the step of determining a maximum and cumulative operating time based on the indoor air dew point temperature and the indoor heat exchanger temperature comprises:
if the temperature of the indoor heat exchanger is not greater than the dew point temperature of the indoor air, acquiring continuous operation time, updating operation times, and judging whether the operation times are preset operation times or not;
if the operation times are the preset operation times, taking the continuous operation time as the maximum continuous operation time and the accumulated operation time;
and if the operation times are not the preset operation times, updating the maximum continuous operation time and the accumulated operation time according to the continuous operation time.
4. The method of claim 3, wherein the step of updating the maximum duration time and the accumulated duration time according to the duration time comprises:
if the continuous operation time is larger than the maximum continuous operation time, taking the continuous operation time as the maximum continuous operation time;
calculating the sum of the continuous operation time and the accumulated operation time as the accumulated operation time.
5. The method as claimed in claim 2, wherein the step of detecting whether the air conditioner satisfies a self-cleaning condition according to the maximum duration running time and the accumulated running time comprises:
if the maximum continuous operation time is not less than the preset continuous operation time and/or the accumulated operation time is not less than the preset accumulated operation time, judging that the air conditioner meets a self-cleaning condition;
and if the maximum continuous operation time is less than the preset continuous operation time and the accumulated operation time is less than the preset accumulated operation time, judging that the air conditioner does not meet a self-cleaning condition.
6. The method of claim 1, further comprising:
and controlling the opening of the main fan according to the temperature of the indoor heat exchanger.
7. The method of claim 6, wherein the step of controlling the main fan to turn on based on the indoor heat exchanger temperature comprises:
judging whether the temperature of the indoor heat exchanger is greater than a first preset temperature threshold value or not;
and if the temperature of the indoor heat exchanger is greater than the first preset temperature threshold value, starting the main fan.
8. The method of claim 7, wherein after the step of turning on the main blower, further comprising:
increasing the rotating speed value of the main fan;
if the temperature of the indoor heat exchanger is greater than a second preset temperature threshold and not greater than the first preset temperature threshold, keeping the rotating speed value of the main fan unchanged;
and if the temperature of the indoor heat exchanger is not greater than the second preset temperature threshold value, reducing the rotating speed value of the main fan.
9. The method of claim 6, further comprising:
if the running time of the air conditioner entering the heating mode reaches the preset drying time, closing the main fan to obtain the outdoor temperature and the exhaust air temperature;
and determining whether to close the fresh air fan and the exhaust fan according to the outdoor temperature and the exhaust temperature.
10. The method of claim 9, wherein said step of determining whether to turn off said fresh air fan and said exhaust air fan based on said outdoor temperature and said exhaust temperature comprises:
calculating the temperature difference between the exhaust temperature and the outdoor temperature, and judging whether the temperature difference is not greater than a preset temperature difference or not;
and if the temperature difference is not greater than the preset temperature difference, closing the fresh air fan and the exhaust fan.
11. The method of claim 10, wherein the step of determining whether the temperature difference is not greater than a predetermined temperature difference is followed by the step of:
if the temperature difference is larger than the preset temperature difference, executing the step of acquiring the outdoor temperature and the exhaust temperature until the temperature difference is not larger than the preset temperature difference, and closing the fresh air fan and the exhaust fan; or
And opening the upper air outlet, executing the step of acquiring the outdoor temperature and the exhaust temperature until the temperature difference is not greater than the preset temperature difference, and closing the upper air outlet, the fresh air fan and the exhaust fan.
12. The method of claim 1, wherein after the step of detecting whether the air conditioner satisfies a self-cleaning condition according to the acquired indoor air dew point temperature and indoor heat exchanger temperature, the method further comprises:
and if the air conditioner does not meet the self-cleaning condition, executing shutdown operation after the shutdown control instruction is obtained.
13. A self-cleaning apparatus of an air conditioner, comprising:
the detection unit is used for detecting whether the air conditioner meets a self-cleaning condition or not according to the acquired indoor air dew point temperature and the indoor heat exchanger temperature if the air conditioner is in a refrigeration mode;
and the first control unit is used for closing the upper air outlet, the lower air outlet and the main fan after a shutdown control instruction is obtained if the air conditioner meets a self-cleaning condition, starting the fresh air fan and the exhaust fan, and controlling the air conditioner to enter a heating mode so as to dry the indoor heat exchanger and the air duct.
14. An air conditioner, characterized in that the air conditioner comprises a controller, a fresh air fan, an exhaust air fan, a main fan, an indoor heat exchanger, an air duct, and an upper air outlet and a lower air outlet connected with the air duct, the controller comprises a memory and a processor, the memory stores a computer program, and the processor executes the computer program to realize the method of any one of claims 1-12.
15. A computer-readable storage medium, characterized in that the storage medium stores a computer program which, when executed by a processor, implements the method according to any one of claims 1-12.
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