CN115076933A - Control method and device for preventing condensation of air conditioner and air conditioner - Google Patents
Control method and device for preventing condensation of air conditioner and air conditioner Download PDFInfo
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- CN115076933A CN115076933A CN202210527694.9A CN202210527694A CN115076933A CN 115076933 A CN115076933 A CN 115076933A CN 202210527694 A CN202210527694 A CN 202210527694A CN 115076933 A CN115076933 A CN 115076933A
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- 238000005485 electric heating Methods 0.000 claims abstract description 48
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- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000005057 refrigeration Methods 0.000 claims description 19
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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
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
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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
- F24F11/62—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention provides a control method and device for preventing condensation of an air conditioner and the air conditioner. Wherein, the method comprises the following steps: if the length of the air conditioner reaches the preset length during the refrigerating operation, acquiring detection parameters in real time; calculating the dew point temperature of air in the air duct according to the air duct temperature and the air duct humidity; judging whether the temperature of the electric heating surface is less than the dew point temperature or not; if yes, calculating the difference between the temperature of the electric heating surface and the dew point temperature; if the difference value is larger than a preset first threshold value, controlling the air conditioner to operate according to a heating dew removal mode; above-mentioned control mode, long judgement has the condensation risk when through the air conditioner during operation of refrigerating to through real-time supervision wind channel temperature and humidity, and electric heating surface temperature judges whether need remove the dew, and removes the dew in-process at the heating, and the air supply mode is low wind-break, and, the wind-guiding door upwards supplies air, thereby has avoided the air conditioner phenomenon of blowing to appear, has improved user's comfort level.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a control method and device for preventing condensation of an air conditioner and the air conditioner.
Background
With the development of national economy and the improvement of the living standard of people, the demand of air conditioners is increasing. As a necessity for life of people, the air conditioner brings coolness to people in summer and brings warmth to people in winter. However, after the air conditioner is operated for a long time in summer, because the phenomena of air leakage and uneven distribution cannot be avoided in the air duct, if cold and hot air are crossed, condensation can be generated in the air duct. The existing method mainly removes or prevents condensation through electric heating, but the air conditioner in the mode can blow water when continuously running, and the comfort degree of a user is seriously influenced. Therefore, how to remove dew from the air conditioner on the basis of ensuring the comfort of the user is an urgent problem to be solved.
Disclosure of Invention
In view of the above, the present invention provides a method and a device for controlling an air conditioner to prevent condensation, and an air conditioner, so as to alleviate the above problems.
In a first aspect, an embodiment of the present invention provides a control method for preventing condensation of an air conditioner, where the method includes: if the length of the air conditioner reaches the preset length during the refrigerating operation, acquiring detection parameters in real time; wherein, detecting the parameter includes: air duct temperature, air duct humidity, and electrical heating surface temperature; calculating the dew point temperature of air in the air duct according to the air duct temperature and the air duct humidity; judging whether the temperature of the electric heating surface is less than the dew point temperature or not; if yes, calculating the difference between the temperature of the electric heating surface and the dew point temperature; if the difference value is larger than a preset first threshold value, controlling the air conditioner to operate according to a heating dew removal mode; the air supply mode in the hot dew removal mode is a low wind level, and the air guide door supplies air upwards; wherein, the air supply mode in the heating dew removing mode is a low wind gear, and the air guide door supplies air upwards.
According to the control method for preventing condensation of the air conditioner, whether condensation risks exist is judged for a long time when the air conditioner operates in a refrigerating mode, whether condensation needs to be removed is judged through real-time monitoring of the temperature and the humidity of the air channel and the temperature of the surface of the electric heating device, in the heating and condensation removing process, the air supply mode is a low wind level, air is supplied upwards through the air guide door, the phenomenon that water blows of the air conditioner is avoided, and the comfort level of a user is improved.
Preferably, the method further comprises: in the operation of a heating dew-removing mode, acquiring indoor detection temperature and indoor set temperature; calculating to obtain an indoor temperature difference value according to the indoor detection temperature and the indoor set temperature; judging whether the indoor temperature difference is not less than a preset second threshold value or not; if so, controlling the air conditioner to switch to the refrigerating operation.
And determining whether dew removal is finished or not according to the indoor temperature difference value between the indoor detection temperature and the indoor set temperature, and turning to refrigeration.
Preferably, the method further comprises: and if the indoor temperature difference is smaller than a preset second threshold value and the temperature of the electric heating surface is smaller than the dew point temperature, controlling the air conditioner to continuously operate according to a heating dew removal mode.
Preferably, the method further comprises: and if the indoor temperature difference is smaller than a preset second threshold value and the temperature of the electric heating surface is not smaller than the dew point temperature, controlling the air conditioner to perform refrigeration operation.
Preferably, the above method further comprises: and if the difference value is not greater than the preset first threshold value, controlling the air conditioner to continue refrigerating operation.
Preferably, the method further comprises: and if the temperature of the electric heating surface is not less than the dew point temperature, controlling the air conditioner to continue refrigerating operation.
Preferably, the preset time period is 10 h.
In a second aspect, an embodiment of the present invention further provides a control apparatus for preventing condensation of an air conditioner, including: the parameter acquisition module is used for acquiring detection parameters in real time if the length of the air conditioner reaches a preset length during refrigerating operation; wherein, detecting the parameter includes: air duct temperature, air duct humidity, and electrical heating surface temperature; the first calculation module is used for calculating the dew point temperature of air in the air duct according to the air duct temperature and the air duct humidity; the temperature judging module is used for judging whether the temperature of the electric heating surface is less than the dew point temperature or not; the second calculation module is used for calculating the difference value between the temperature of the electric heating surface and the dew point temperature if the temperature of the electric heating surface is equal to the dew point temperature; the control operation module is used for controlling the air conditioner to operate according to a heating dew-removing mode if the difference value is larger than a preset first threshold value; wherein, the air supply mode in the heating dew removing mode is a low wind gear, and the air guide door supplies air upwards.
In a third aspect, an embodiment of the present invention further provides an air conditioner, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the method in the first aspect when executing the computer program.
In a fourth aspect, the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to perform the steps of the method in the first aspect.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a control method and a control device for preventing condensation of an air conditioner and the air conditioner, and provides the control method and the control device for preventing condensation of the air conditioner and the air conditioner; if the length of the air conditioner reaches the preset length during the refrigerating operation, acquiring detection parameters in real time; calculating the dew point temperature of air in the air duct according to the air duct temperature and the air duct humidity; judging whether the temperature of the electric heating surface is less than the dew point temperature or not; if yes, calculating the difference between the temperature of the electric heating surface and the dew point temperature; if the difference value is larger than a preset first threshold value, controlling the air conditioner to operate according to a heating dew removal mode; above-mentioned control mode, long judgement has the condensation risk when through the air conditioner during operation of refrigerating to through real-time supervision wind channel temperature and humidity, and electric heating surface temperature judges whether need remove the dew, and removes the dew in-process at the heating, and the air supply mode is low wind-break, and, the wind-guiding door upwards supplies air, thereby has avoided the air conditioner phenomenon of blowing to appear, has improved user's comfort level.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a flowchart illustrating a control method for preventing condensation of an air conditioner according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating another control method for preventing condensation of an air conditioner according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a control device for preventing condensation of an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent 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.
For the convenience of understanding the present embodiment, a detailed description will be given below of a control method for preventing condensation of an air conditioner according to an embodiment of the present invention.
An embodiment of the present invention provides a control method for preventing condensation of an air conditioner, wherein an execution main body is a controller of the air conditioner, as shown in fig. 1, the method includes the following steps:
step S102, if the air conditioner reaches a preset time length during refrigerating operation, acquiring detection parameters in real time; wherein, detecting the parameter includes: air duct temperature, air duct humidity and electrical heating surface temperature;
specifically, the air conditioner is also provided with an air conditioner remote controller in communication connection with the controller, a user starts the air conditioner through the air conditioner remote controller and sets a refrigeration mode, and the controller controls the air conditioner to refrigerate and run according to the refrigeration mode according to the acquired control signal and performs timing. In addition, the air conditioner is also provided with a collecting device, including but not limited to a temperature sensor, a humidity sensor and the like, such as a first temperature sensor and a humidity sensor which are arranged in an air duct of the indoor unit, and a second temperature sensor which is arranged at the position of the electric heating surface.
In practical application, when the air conditioner runs in a refrigerating mode for a long time, the controller triggers the detection device to start, and obtains the air duct temperature detected by the first temperature sensor, the air duct humidity detected by the humidity sensor and the electric heating surface temperature detected by the second temperature sensor in real time, so that whether dew needs to be removed or not is judged according to the air duct temperature, the air duct humidity and the electric heating surface temperature. The preset time is preferably 10h, namely when the air conditioner runs for a long time and condensation risks possibly exist, whether dew needs to be removed is judged according to the detection parameters, and therefore dew removal accuracy is improved.
Step S104, calculating the dew point temperature of air in the air duct according to the air duct temperature and the air duct humidity;
specifically, the dew point temperature of the duct air determines the ease of frosting. When the air pressure is kept constant with the moisture content in the air unchanged, the temperature at which the air is cooled to saturation is called the dew point temperature, usually 0 ℃ or higher is called the "dew point", and 0 ℃ is called the "frost point" hereinafter. Therefore, the dew point temperature of the air in the air duct is calculated according to the air duct temperature and the air duct humidity, so that whether dew needs to be removed or not is judged according to the dew point temperature and the temperature of the electric heating surface, and the accuracy of dew removal judgment is improved.
One way to calculate the dew point temperature is as follows:
Td＝C 1 *T wind power -C 2 (1)
Wherein Td represents a dew point temperature, T Wind power Indicating the temperature of the air duct, C 1 And C 2 Representing a coefficient, where the coefficient may be determined based on the interval in which the duct humidity is, for example, when the duct humidity is at [ 40%, 50% ]]When, C 1 Is 0.8, C 2 10.8, etc., and can be set according to actual conditions.
In addition, the liquid level saturated vapor pressure corresponding to the air duct temperature can be calculated according to the air duct temperature and the air duct humidity, and the dew point temperature of air in the air duct can be calculated according to the liquid level saturated vapor pressure. Therefore, the specific manner of calculating the dew point temperature can be set according to actual conditions.
Step S106, judging whether the temperature of the electric heating surface is less than the dew point temperature;
after the dew point temperature Td is calculated, whether dew is removed or not is judged according to the electric heating surface temperature and the dew point temperature, namely whether a condensation risk exists in the electric heating is judged. Specifically, whether the temperature of the electric heating surface is lower than the dew point temperature or not is judged, if yes, condensation risk exists in electric heating, and dew removal is needed; if not, namely the temperature of the electric heating surface is not less than the dew point temperature, at the moment, the electric heating has no condensation risk, and the controller controls the air conditioner to continue refrigerating operation.
Step S108, if yes, calculating the difference between the temperature of the electric heating surface and the dew point temperature;
specifically, the difference is calculated according to the following formula:
△t＝Td-T adding (2)
Where Δ T represents the difference, Td represents the dew point temperature, T Adding Indicating the electrically heated surface temperature.
And step S110, if the difference value is larger than a preset first threshold value, controlling the air conditioner to operate according to a heating dew removal mode.
Specifically, if the difference value delta t is larger than a preset first threshold value a, namely delta t is larger than a, the air conditioner is controlled to be switched from the refrigeration mode to the heating dew removal mode, in the operation of the heating dew removal mode, the air supply mode is a low wind level, and the air guide door supplies air upwards, so that the water blowing phenomenon is avoided, and the comfort level of a user is guaranteed. The low wind level is the minimum wind level of the set wind levels, for example, if the wind level is set to be a high wind level, a medium wind level and a low wind level, the air supply mode is the low wind level; if the wind gear is set to be various wind gears of percentage, the low wind gear of the air supply mode refers to the wind gear of the minimum percentage at the moment, and the setting can be specifically carried out according to the actual situation.
In addition, if the difference value deltat is not greater than the preset first threshold value a, namely deltat is not greater than a, at the moment, although condensation exists, the air conditioner does not generate a water blowing phenomenon when continuously operating due to less condensation water, and therefore the controller controls the air conditioner to continuously perform the refrigerating operation. The preset first threshold value a is preferably 1 ℃.
According to the control method for preventing condensation of the air conditioner, whether condensation risks exist or not is judged for a long time when the air conditioner operates in a refrigerating mode, whether condensation needs to be removed or not is judged through real-time monitoring of the temperature and the humidity of the air duct and the temperature of the surface of electric heating, the air supply mode is a low wind level in the heating and condensation removing process, air is supplied upwards through the air guide door, the water blowing phenomenon of the air conditioner is avoided, and the comfort level of a user is improved.
Preferably, the method further comprises: in the operation of a heating dew-removing mode, acquiring indoor detection temperature and indoor set temperature; calculating to obtain an indoor temperature difference value according to the indoor detection temperature and the indoor set temperature; judging whether the indoor temperature difference is not less than a preset second threshold value or not; if so, controlling the air conditioner to switch to the refrigerating operation. Specifically, during the heating dew removal mode, the controller obtains the indoor detection temperature T Inner part And indoor set temperature T Is provided with And calculating the difference value of indoor temperature Delta T ═ T Is provided with -T Inner part And judging whether the indoor temperature difference is not less than a preset second threshold value, namely judging that the delta T is more than or equal to b, controlling the air conditioner to be switched from a heating dew removal mode to a refrigeration mode when the delta T is more than or equal to b, refrigerating according to the refrigeration mode, and adjusting the air supply mode to a high wind level at the moment. Wherein the indoor detection temperature T Inner part The third sensor can be obtained by a third sensor, wherein the third sensor can be arranged on the outer surface of the indoor unit and at a position far away from the air outlet, or can be arranged at a certain distance, such as 2m, from the ground indoors, and is in communication connection with the controller of the air conditioner. And, the preset second threshold b is preferably 5 ℃.
In addition, if the indoor temperature difference is smaller than a preset second threshold value and the temperature of the electric heating surface is smaller than the dew point temperature at the moment, controlling the air conditioner to continuously operate according to a heating dew-removing mode; i.e. when DeltaT < b, and, at that time, the electrically heated surface temperature T Adding If the temperature is less than the dew point temperature Td, the dew point temperature Td is calculated according to the air duct temperature and the air duct humidity acquired at the moment, and the air conditioner is controlled to continuously operate according to the heating and dew removing mode. Or if the indoor temperature difference is smaller than a preset second threshold value and the temperature of the electric heating surface is not smaller than the dew point temperature at the moment, controlling the air conditioner to perform refrigeration operation; when DeltaT < b, and the electric heating meterSurface temperature T Adding And when the dew point temperature Td is not less than the dew point temperature Td, the air conditioner is controlled to be switched into a refrigeration mode from a heating dew removal mode, and the air conditioner is refrigerated and operated according to the refrigeration mode.
Preferably, when the controller receives a shutdown instruction, in order to prevent the phenomenon that the condensed water is not dried when the controller is electrically heated, the controller controls the air conditioner to heat according to a heating mode for a certain time, such as 2min, and then shuts down the air conditioner next time when the air conditioner is started, and the air guide door turns to supply air upwards during heating operation and operates at a low wind level to avoid the phenomenon of water blowing, so that the comfort level of a user is further ensured.
For ease of understanding, the illustration here, as shown in fig. 2, includes the following steps:
step S202, acquiring the length tau of the air conditioner during refrigerating operation;
step S204, judging tau is more than or equal to tau 1; namely, judging whether the refrigerating operation time length tau of the air conditioner reaches a preset time length tau 1, wherein tau 1 is 10h, if not, executing a step S206, and if so, executing a step S208;
step S206, controlling the air conditioner to perform refrigeration operation;
step S208, acquiring air duct temperature, air duct humidity and electric heating surface temperature T in real time Adding Calculating the dew point temperature Td of the air in the air duct according to the air duct temperature and the air duct humidity;
step S210, judging T Adding < Td; if yes, executing step S212, if no, executing step S206 if the electric heating has no condensation risk;
step S212, according to the result that the delta T is Td-T Adding Calculating a difference value delta t;
step S214, judging that delta t is larger than a, if yes, executing step S216; if not, in this case, the condensed water is less, and the cooling can be continued without blowing water, step S206 is performed, where a is preferably 1 ℃.
Step S216, heating operation is carried out, the air supply mode is a low wind gear, and the air guide door supplies air upwards; namely, controlling the air conditioner to operate according to a heating dew removal mode;
step S218, according to the indoor detection temperature T Inner part And indoor facilityConstant temperature T Is provided with Calculating an indoor temperature difference value delta T;
step S220, judging that the delta T is more than or equal to b; namely, judging whether the indoor temperature difference is not less than a preset second threshold value b, if so, executing a step S206, controlling the air conditioner to be switched into a refrigeration operation, and controlling the air supply mode to be a high wind level; if not, executing step S222; the preset second threshold value b is here preferably 5 ℃.
Step S222, judging T Add a < Td; judging whether the temperature of the electric heating surface is lower than the dew point temperature; if yes, go to step S224, if no, go to step S226; the calculation of the dew point temperature at this time can be referred to the foregoing embodiment.
Step S224, controlling the air conditioner to continuously operate according to a heating dew-removing mode;
step S226, controlling the air conditioner to be switched to a refrigeration mode from a heating dew-removing mode, and performing refrigeration operation according to the refrigeration mode;
step S228, judging whether the machine is powered off; judging whether a shutdown control instruction is received or not, if so, executing step S230, otherwise, returning to step S204 to control again;
step S230, heating operation, air supply upwards through an air guide door, and shutdown after 2min of low-wind-gear operation; thereby preventing the phenomenon that condensed water is attached to the electric heater and is not dried and the water is blown when the machine is started next time.
It should be noted that, for the cooling operation under other situations, if the shutdown control instruction is detected, step S230 may also be executed to avoid that the condensed water attached to the electric heating is not dried, and the water blowing phenomenon occurs at the next startup, so as to further improve the comfort level of the user. And after dew removal is finished every time, the operation time of the air conditioner needs to be timed again, and the long-term operation of the air conditioner is controlled according to the control process to prevent dew from blowing.
In summary, the control method for preventing condensation of the air conditioner provided by the embodiment of the invention determines whether condensation risk exists according to the refrigerating operation duration of the air conditioner, and detects the dew point temperature of air in an air duct and the temperature of an electric heating surface in real time to judge whether condensation needs to be removed; in addition, whether dew removal is finished or not is determined according to an indoor temperature difference value between the indoor detection temperature and the indoor set temperature, and refrigeration is switched to; in addition, the air guide door is switched to a low-wind-gear air supply mode when heating and dew removing are carried out; and after receiving the shutdown instruction, the air conditioner is firstly switched to heating, and the air supply is carried out for 2min at a low wind level, so that the next startup is prevented from blowing water, the air conditioner is defrosted, and the comfort level of a user is also ensured.
Corresponding to the above method embodiment, an embodiment of the present invention further provides a control apparatus for preventing condensation of an air conditioner, as shown in fig. 3, the apparatus includes: the device comprises a parameter acquisition module 31, a first calculation module 32, a temperature judgment module 33, a second calculation module 34 and a control operation module 35; the functions of each module are as follows:
the parameter acquisition module 31 is used for acquiring detection parameters in real time if the length of the air conditioner reaches a preset length during refrigeration operation; wherein, detecting the parameter includes: air duct temperature, air duct humidity and electrical heating surface temperature;
the first calculation module 32 is configured to calculate a dew point temperature of air in the air duct according to the air duct temperature and the air duct humidity;
a temperature judgment module 33, configured to judge whether the temperature of the electric heating surface is less than a dew point temperature;
a second calculation module 34 for calculating the difference between the temperature of the electrically heated surface and the dew point temperature if yes;
the control operation module 35 is used for controlling the air conditioner to operate according to a heating dew-removing mode if the difference value is larger than a preset first threshold value; wherein, the air supply mode in the heating dew removing mode is a low wind gear, and the air guide door supplies air upwards.
The control device for preventing condensation of the air conditioner provided by the embodiment of the invention judges whether the condensation risk exists or not by long time when the air conditioner operates in a refrigerating mode, judges whether the condensation needs to be removed or not by monitoring the temperature and the humidity of the air duct in real time and the temperature of the electric heating surface, and in the heating and condensation removing process, the air supply mode is a low wind level, and the air guide door supplies air upwards, so that the water blowing phenomenon of the air conditioner is avoided, and the comfort level of a user is improved.
In one possible implementation, the above apparatus further includes: in the operation of a heating dew-removing mode, acquiring indoor detection temperature and indoor set temperature; calculating to obtain an indoor temperature difference value according to the indoor detection temperature and the indoor set temperature; judging whether the indoor temperature difference is not less than a preset second threshold value or not; if yes, the air conditioner is controlled to be switched to the refrigerating operation.
In another possible embodiment, the above apparatus further comprises: and if the indoor temperature difference is smaller than a preset second threshold value and the temperature of the electric heating surface is smaller than the dew point temperature, controlling the air conditioner to continuously operate according to a heating dew removal mode.
In another possible embodiment, the above apparatus further comprises: and if the indoor temperature difference is smaller than a preset second threshold value and the temperature of the electric heating surface is not smaller than the dew point temperature, controlling the air conditioner to perform refrigeration operation.
In another possible embodiment, the above apparatus further comprises: and if the difference value is not greater than the preset first threshold value, controlling the air conditioner to continue refrigerating operation.
In another possible embodiment, the above apparatus further comprises: and if the temperature of the electric heating surface is not less than the dew point temperature, controlling the air conditioner to continue refrigerating operation.
In another possible embodiment, the preset time period is 10 h.
The control device for preventing condensation of the air conditioner provided by the embodiment of the invention has the same technical characteristics as the control method for preventing condensation of the air conditioner provided by the embodiment, so the same technical problems can be solved, and the same technical effects can be achieved.
The embodiment of the invention also provides an air conditioner, which comprises a processor and a memory, wherein the memory stores machine executable instructions capable of being executed by the processor, and the processor executes the machine executable instructions to realize the control method for preventing condensation of the air conditioner.
Referring to fig. 4, the air conditioner includes a processor 100 and a memory 101, the memory 101 stores machine executable instructions capable of being executed by the processor 100, and the processor 100 executes the machine executable instructions to implement the control method for preventing condensation of the air conditioner.
Further, the air conditioner shown in fig. 4 further includes a bus 102 and a communication interface 103, and the processor 100, the communication interface 103 and the memory 101 are connected through the bus 102.
The Memory 101 may include a high-speed Random Access Memory (RAM) and may also include a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The communication connection between the network element of the system and at least one other network element is realized through at least one communication interface 103 (which may be wired or wireless), and the internet, a wide area network, a local network, a metropolitan area network, and the like can be used. The bus 102 may be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, an EISA (Enhanced Industry Standard Architecture) bus, or the like. The above-mentioned bus may be classified into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one double-headed arrow is shown in FIG. 4, but that does not indicate only one bus or one type of bus.
The present embodiments also provide a machine-readable storage medium storing machine-executable instructions that, when invoked and executed by a processor, cause the processor to implement the above-described control method for preventing condensation of an air conditioner.
The control method and device for preventing condensation of an air conditioner and the computer program product of the air conditioner provided by the embodiments of the present invention include a computer readable storage medium storing program codes, where instructions included in the program codes may be used to execute the method described in the foregoing method embodiments, and specific implementation may refer to the method embodiments, which are not described herein again.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A control method for preventing condensation of an air conditioner, the method comprising:
if the length of the air conditioner reaches a preset length during refrigerating operation, acquiring detection parameters in real time; wherein the detection parameters include: air duct temperature, air duct humidity and electrical heating surface temperature;
calculating the dew point temperature of air in the air duct according to the air duct temperature and the air duct humidity;
judging whether the temperature of the electric heating surface is lower than the dew point temperature or not;
if yes, calculating the difference between the temperature of the electric heating surface and the dew point temperature;
if the difference value is larger than a preset first threshold value, controlling the air conditioner to operate according to a heating dew removal mode; the air supply mode in the heating dew-removing mode is a low wind gear, and the air guide door supplies air upwards.
2. The method of claim 1, further comprising:
in the heating dew removal mode operation, acquiring indoor detection temperature and indoor set temperature;
calculating to obtain an indoor temperature difference value according to the indoor detection temperature and the indoor set temperature;
judging whether the indoor temperature difference is not less than a preset second threshold value or not;
and if so, controlling the air conditioner to switch to the refrigerating operation.
3. The method of claim 2, further comprising:
and if the indoor temperature difference is smaller than the preset second threshold value and the temperature of the electric heating surface is smaller than the dew point temperature at the moment, controlling the air conditioner to continuously operate according to the heating dew removal mode.
4. The method of claim 2, further comprising:
and if the indoor temperature difference is smaller than the preset second threshold value and the temperature of the electric heating surface is not smaller than the dew point temperature at the moment, controlling the air conditioner to perform refrigeration operation.
5. The method of claim 1, further comprising:
and if the difference value is not greater than the preset first threshold value, controlling the air conditioner to continue refrigerating operation.
6. The method of claim 1, further comprising:
and if the temperature of the electric heating surface is not less than the dew point temperature, controlling the air conditioner to continue refrigerating operation.
7. The method according to claim 1, wherein the preset time period is 10 h.
8. A control apparatus for preventing condensation of an air conditioner, the apparatus comprising:
the parameter acquisition module is used for acquiring detection parameters in real time if the length of the air conditioner reaches a preset length during refrigerating operation; wherein the detection parameters include: air duct temperature, air duct humidity and electrical heating surface temperature;
the first calculation module is used for calculating the dew point temperature of air in the air duct according to the air duct temperature and the air duct humidity;
the temperature judging module is used for judging whether the temperature of the electric heating surface is less than the dew point temperature or not;
a second calculation module for calculating the difference between the temperature of the electrically heated surface and the dew point temperature if yes;
the control operation module is used for controlling the air conditioner to operate according to a heating dew removal mode if the difference value is larger than a preset first threshold value; the air supply mode in the heating dew-removing mode is a low wind gear, and the air guide door supplies air upwards.
9. An air conditioner comprising a memory, a processor and a computer program stored on said memory and executable on said processor, wherein said processor when executing said computer program performs the steps of the method of any of claims 1 to 7.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, performs the steps of the method of any of the preceding claims 1-7.
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