CN114963302A - Air conditioning system, air conditioning indoor unit and self-cleaning control method thereof - Google Patents
Air conditioning system, air conditioning indoor unit and self-cleaning control method thereof Download PDFInfo
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- CN114963302A CN114963302A CN202210763925.6A CN202210763925A CN114963302A CN 114963302 A CN114963302 A CN 114963302A CN 202210763925 A CN202210763925 A CN 202210763925A CN 114963302 A CN114963302 A CN 114963302A
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- filter screen
- indoor unit
- water
- water storage
- 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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
- F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
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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
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/90—Cleaning of purification apparatus
Abstract
The invention provides an air conditioning system, an air conditioning indoor unit and a self-cleaning control method thereof, wherein the air conditioning indoor unit comprises a shell, a filter screen, an evaporator, a driving control mechanism, a water storage disc, a cleaning brush, a water storage disc, a drainage tube, a cover plate, a switch control mechanism, a heating module and a cooling module, wherein the driving control mechanism can control the filter screen to move so that one end of the filter screen is immersed into water in the water storage disc, the cleaning brush is arranged in the water storage disc and is in contact with the outer side face of the filter screen to clean the filter screen, the first end of the drainage tube is communicated with the water storage disc, the second end of the drainage tube is inserted into the water storage disc, the water storage disc is provided with a water outlet communicated with the water storage disc, the switch control mechanism can control the cover plate to open or close the water outlet, the heating module is arranged in the water storage disc, and the cooling module is arranged at the bottom of the water storage disc, which is far away from the filter screen. The air conditioner indoor unit can automatically clean the filter screen, the cleaning effect of the filter screen is good and efficient, and the work is safe and reliable, so that the experience comfort level of a user is improved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner indoor unit, a self-cleaning control method of the air conditioner indoor unit and an air conditioner system with the air conditioner indoor unit.
Background
Before the indoor air exchanges heat with an evaporator of the indoor air conditioner, the indoor air needs to be filtered by a filter screen, so that dust or impurities in the air are prevented from entering the inside of the indoor air conditioner. Along with the increase of the service time of the air conditioner, the filter screen and the evaporator of the indoor unit of the air conditioner inevitably have the dirty blocking condition because of dust accumulation, and after the filter screen is dirty and blocked, the ventilation of the air conditioner can be unsmooth, the air volume of the air conditioner is reduced, and after the evaporator is dirty and blocked, the heat exchange performance of the air conditioner can be reduced, and the like, so that the use comfort of a user can be influenced, meanwhile, a large amount of harmful substances such as bacteria, viruses and the like can be generated, if the filter screen and the evaporator are cleaned in an untimely way, when the indoor unit of the air conditioner runs, the harmful substances can circulate in the room along with the air, pollute the air, spread diseases and cause adverse effects on the health of the user.
The existing self-cleaning mode of the indoor unit of the air conditioner is that a water receiving container is used for receiving water generated by defrosting and cleaning of an evaporator, a driving device is used for driving a filter screen to enter the water of the water receiving container, a cleaning module in the water receiving container is used for cleaning the filter screen, the water in the water receiving container can submerge the cleaning module, and the cleaning module is in interference fit with the outer side face of the filter screen, so that when the driving device drives the filter screen to move, the cleaning module can clean the outer side face of the filter screen in the water. However, the water generated by defrosting and cleaning the evaporator is mixed with dust, textile fibers, animal hair and the like, the water is polluted, and a polluted water source is utilized to clean the filter screen, so that secondary pollution is easily caused to the filter screen, and the cleaning effect is poor.
Disclosure of Invention
In order to achieve the first purpose of the invention, the invention provides the air conditioner indoor unit which can automatically clean the filter screen, has good cleaning effect of the filter screen, high cleaning efficiency of the filter screen and safe and reliable work, and thus, the experience comfort level of a user is improved.
In order to achieve the second object of the present invention, the present invention provides a self-cleaning control method for the indoor unit of an air conditioner.
In order to achieve the third object of the present invention, the present invention provides an air conditioning system having the air conditioning indoor unit.
In order to realize the first purpose of the invention, the invention provides an air-conditioning indoor unit, which comprises a shell, a filter screen, an evaporator, a drive control mechanism, a water storage disc, a cleaning brush, a water pan, a drainage tube, a cover plate, a switch control mechanism, a heating module and a cooling module, wherein the evaporator is arranged in the shell, the shell is provided with an air inlet, the filter screen is movably supported in the shell and is arranged close to the air inlet, the water storage disc is positioned at one end of the filter screen in the moving direction of the filter screen, the drive control mechanism can control the filter screen to move so that one end of the filter screen is immersed in the water of the water storage disc, the cleaning brush is arranged in the water storage disc and is contacted with the outer side surface of the filter screen to clean the filter screen, the water pan is positioned below the evaporator and the water storage disc far away from the filter screen, the first end of the drainage tube is communicated with the water receiving disc, the second end of the drainage tube is inserted into the water storage disc, the water storage tray is provided with a water outlet communicated with the water receiving tray, the switch control mechanism can control the cover plate to open or close the water outlet, the heating module is arranged in the water receiving tray, and the cooling module is arranged at the bottom of the water storage tray, which is far away from the filter screen.
According to the scheme, the frost water generated after defrosting and cleaning of the evaporator of the indoor unit of the air conditioner is collected into the water receiving tray, when the filter screen needs cleaning, the heating module is controlled to be started to heat the frost water in the water receiving tray, the frost water in the water receiving tray forms water vapor to be separated from pollutants such as dust, textile fibers and animal hair, the water vapor evaporates and rises and is conveyed into the water storage tray through the drainage tube, the cooling module cools the water vapor in the water storage tray to form clean condensate water, at the moment, the switch control mechanism controls the cover plate to close the water outlet of the water storage tray, and the clean condensate water is accumulated on the bottom end face of the water storage tray due to the fact that the second end of the drainage tube protrudes out of the bottom end face of the water storage tray, and the clean condensate water can be prevented from flowing back into the water receiving tray from the second end of the drainage tube. When clean comdenstion water in the water storage tray can submergence clean the one end of brush and filter screen, stop heating after heating module opens the time of predetermineeing promptly, can avoid the clean comdenstion water in the water storage tray excessive risk to appear, drive control mechanism control filter screen removes so that the one end of filter screen immerses the clean comdenstion water of water storage tray after that, along with the removal of filter screen, clean the lateral surface that the filter screen was washd in the aquatic to the brush, thereby can be with the dust on the filter screen, pollutants such as textile fiber and animal hair clean down, reach high-efficient cleaning performance. After the filter screen washs and finishes, the filter screen stops to remove, and the opening and closing control mechanism control apron opens the outlet afterwards for the sewage drainage in the water catch tray discharges in to the water collector.
Therefore, the air-conditioning indoor unit provided by the invention has the advantages that the heating module and the cooling module are used for carrying out evaporation separation on the frost water in the butt water tray to form clean condensate water in the water storage tray, and along with the movement of the filter screen, the cleaning brush is used for cleaning the outer side surface of the filter screen in water to automatically clean the filter screen, compared with the existing method for cleaning the filter screen by using the polluted frost water, the secondary pollution to the filter screen is easily caused.
The further scheme is that one end of a part of copper pipes of the evaporator extends to the bottom of the water storage disc in the moving direction of the filter screen to form a cooling module.
The further scheme is that the bottom of the water storage disc is provided with an accommodating box, the cooling module is located in the accommodating box, and the second end of the drainage tube penetrates through the accommodating box and then is inserted into the water storage disc.
The further proposal is that the heating module is arranged corresponding to the first end of the drainage tube in the normal direction of the filter screen.
The further scheme is that a water collecting box is arranged at one end, close to the water storage disc, of the water receiving disc in the moving direction of the filter screen, the water collecting box is communicated with the water receiving disc, the first end of the drainage tube is communicated with the water collecting box, the heating module is arranged in the water collecting box, and the water outlet is communicated with the water collecting box.
The further scheme is that the bottom end of the water collecting box, which is far away from the water storage disc in the normal direction of the filter screen, is communicated with a drain pipe, and one end of the drain pipe, which is far away from the water collecting box, extends out of the shell.
Further, the switch control mechanism can control the cover plate to rotatably open or close the water drainage opening.
The further scheme is that, drive control mechanism includes the action wheel, follows driving wheel and driving motor, and the action wheel with follow the both ends that lie in the filter screen on the moving direction of driving wheel at the filter screen, and the action wheel rotatably supports in the casing, rotatably supports in the water storage disk from the driving wheel, the filter screen is the closed loop and cup joints between the action wheel and follows the driving wheel, the steerable action wheel of driving motor is rotatory.
In order to achieve the second object of the present invention, the present invention provides a self-cleaning control method for an air conditioning indoor unit, the air conditioning indoor unit being the above air conditioning indoor unit, the self-cleaning control method comprising: after the air-conditioning indoor unit finishes the operation of the evaporator defrosting mode, the air-conditioning indoor unit executes the refrigerating mode, the heating module is turned off after being turned on for a first preset time, and the driving control mechanism controls the filter screen to move.
Further, the evaporator defrosting mode comprises the following steps: and after the air-conditioning indoor unit operates for the second preset time in the frosting refrigeration mode, the air-conditioning indoor unit operates for the third preset time in the heating mode.
The further scheme is that before the air-conditioning indoor unit operates in the evaporator defrosting mode, the cumulative time of starting operation of the air-conditioning indoor unit is determined to be greater than or equal to fourth preset time.
Further, the self-cleaning control method further comprises the following steps: when the filter screen stops moving, the switch control mechanism controls the cover plate to open the water outlet.
In order to achieve the third object of the present invention, the present invention provides an air conditioning system, which includes an air conditioning indoor unit.
Drawings
Fig. 1 is a first perspective sectional view of an air conditioning indoor unit according to an embodiment of the present invention.
Fig. 2 is a second perspective sectional view of an air conditioning indoor unit according to an embodiment of the present invention.
Fig. 3 is an enlarged view of fig. 1 at a.
Fig. 4 is an enlarged view of fig. 1 at B.
Fig. 5 is an enlarged view of fig. 2 at C.
FIG. 6 shows the structure of the filter screen, the driving control mechanism, the water storage tray, the water collecting box and the drainage tube in the embodiment of the indoor unit of the air conditioner.
FIG. 7 is a flow chart of an embodiment of a self-cleaning control method for an indoor unit of an air conditioner.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
The embodiment of the air-conditioning indoor unit comprises:
referring to fig. 1 to 6, the present embodiment discloses an indoor unit of an air conditioner, which includes a casing 11, a filter screen 12, an evaporator 13, a driving control mechanism, a water storage tray 18, a cleaning brush 110, a water pan 14, a drainage tube 17, a cover plate 113, a switch control mechanism, a heating module 16, and a cooling module, wherein the evaporator 13 is disposed in the casing 11, an air inlet (not labeled) is formed in the casing 11, and the filter screen 12 is movably supported in the casing 11 and disposed close to the air inlet, that is, the filter screen 12 is located above the evaporator 13. Wherein, the water storage tray 18 of the embodiment is located at one end of the filter screen 12 in the moving direction 121 of the filter screen 12, the driving control mechanism can control the filter screen 12 to move so that one end of the filter screen 12 is immersed in the water storage tray 18, and the cleaning brush 110 is disposed in the water storage tray 18 and contacts with the outer side surface of the filter screen 12 to clean the filter screen 12. Meanwhile, the water pan 14 of the present embodiment is located below the evaporator 13 and the water pan 18 far away from the filter screen 12, the first end of the drainage tube 17 is communicated with the water pan 14, and the second end 171 of the drainage tube 17 is inserted into the water pan 18. In addition, the water storage tray 18 of this embodiment is provided with a drain opening 181 communicated with the water receiving tray 14, the switch control mechanism can control the cover plate 113 to open or close the drain opening 181, the heating module 16 is arranged in the water receiving tray 14, and the cooling module is arranged at the bottom of the water storage tray 18 far away from the filter screen 12.
The defrosting method includes the steps that frost water generated after defrosting and cleaning of an evaporator 13 of the indoor unit of the air conditioner is collected into a water receiving tray 14, when a filter screen 12 needs cleaning, a heating module 16 is controlled to be started to heat the frost water in the water receiving tray 14, so that the frost water in the water receiving tray 14 forms water vapor which is separated from pollutants such as dust, textile fibers and animal hair, the water vapor evaporates and rises and is conveyed into a water storage tray 18 through a drainage tube 17, a cooling module cools the water vapor in the water storage tray 18 to form clean condensate water, at the moment, a switch control mechanism controls a cover plate 113 to close a water outlet 181 of the water storage tray 18, and the second end 171 of the drainage tube 17 protrudes out of the bottom end face of the water storage tray 18, so that the clean condensate water is accumulated on the bottom end face of the water storage tray 18, and the clean condensate water can be prevented from flowing back into the water receiving tray 14 from the second end 171 of the drainage tube 17. When the clean comdenstion water in the water-storage tray 18 can submerge the one end that cleans brush 110 and filter screen 12, heat module 16 promptly and open and stop the heating after the time of predetermineeing, can avoid the clean comdenstion water in the water-storage tray 18 excessive risk appearing, drive control mechanism control filter screen 12 removes so that the one end of filter screen 12 immerses the clean comdenstion water of water-storage tray 18 after that, along with the removal of filter screen 12, clean brush 110 the lateral surface that washs filter screen 12 in aqueous, thereby can be with the dust on the filter screen 12, pollutants such as textile fiber and animal hair clean down, reach high-efficient cleaning performance. After the filter screen 12 is cleaned, the filter screen 12 stops moving, and then the switch control mechanism controls the cover plate 113 to open the drain opening 181, so that the sewage in the water storage tray 18 is drained into the water receiving tray 14 for discharging.
Therefore, in the air-conditioning indoor unit of the present embodiment, frost in the water pan 14 is evaporated and separated to form clean condensate water in the water storage pan 18 by the heating module 16 and the cooling module, and the clean condensate water is moved along with the filter screen 12, the cleaning brush 110 cleans the outer side surface of the filter screen 12 in water to automatically clean the filter screen 12, compared with the existing method of cleaning the filter screen by using polluted frost, secondary pollution is easily caused to the filter screen, the air-conditioning indoor unit of the present embodiment cleans the brush 110 and the filter screen 12 by using clean condensate water to automatically clean the filter screen 12, and secondary pollution to the filter screen 12 is prevented, so that the cleaning effect of the filter screen 12 is good, the cleaning efficiency of the filter screen 12 is high, and the work is safe and reliable, thereby the reliable operation of the air-conditioning indoor unit is ensured, and further, the experience comfort level of a user is improved.
In order to improve the energy efficiency utilization rate of the air conditioning indoor unit, in this embodiment, one end of a part of the copper pipe 131 of the evaporator 13 extends to the bottom of the water storage tray 18 in the moving direction 121 of the filter screen 12 to form a cooling module, when the heating module 16 is turned on to heat the frost water in the water storage tray 14 so as to separate the frost water in the water storage tray 14 into water vapor and pollutants such as dust, textile fibers and animal hair, the air conditioning indoor unit is in a cooling mode operation state, and the copper pipe 131 extending to the bottom of the water storage tray 18 can cool the water vapor in the water storage tray 18 to form clean condensed water, so as to improve the cold air utilization rate of the copper pipe 131.
In order to ensure that the water vapor can smoothly enter the drainage tube 17 for conveying to the water storage tray 18, the heating module 16 is arranged corresponding to the first end of the drainage tube 17 in the normal direction of the filter screen 12. Specifically, the bottom of the reservoir tray 18 of this embodiment is provided with a receiving box 19, the cooling module is located in the receiving box 19, and the second end 171 of the drain tube 17 is inserted through the receiving box 19 and into the reservoir tray 18. Further, in the present embodiment, a water collecting box 15 is disposed at an end of the water collecting tray 14 close to the water storage tray 18 in the moving direction 121 of the filter screen 12, the water collecting box 15 is communicated with the water collecting tray 14, the first end of the drainage tube 17 is communicated with the water collecting box 15, the heating module 16 is disposed in the water collecting box 15, and the water discharge opening 181 is communicated with the water collecting box 15. In addition, the bottom end of the water collecting box 15 far away from the water storage disc 18 in the normal direction of the filter screen 12 is communicated with a drain pipe 115, one end of the drain pipe 115 far away from the water collecting box 15 extends out of the shell 11, and sewage in the water collecting box 15 is discharged to the outside through the drain pipe 115.
Specifically, the driving control mechanism of this embodiment includes a driving wheel 112, a driven wheel 111 and a driving motor 113, the driving wheel 112 and the driven wheel 111 are located at two ends of the filter screen 12 in the moving direction 121 of the filter screen 12, the driving wheel 112 is rotatably supported in the housing 11, the driven wheel 111 is rotatably supported in the water storage tray 18, the filter screen 12 is sleeved between the driving wheel 112 and the driven wheel 111 in a closed loop, the driving motor 113 can control the driving wheel 112 to rotate, and then the closed loop filter screen 12 can reciprocate around between the driving wheel 112 and the driven wheel 111, and the operation is stable and reliable. Further, the opening and closing control mechanism of the present embodiment controls the cover 113 to rotatably open or close the water discharge opening 181, and the opening and closing control mechanism controls the motor 114.
The indoor set of air conditioner of this embodiment has self-cleaning filter screen 12 function, and along with the removal of filter screen 12 promptly, clean brush 110 and wash the lateral surface of filter screen 12 in aqueous, because filter screen 12 is infiltrated to clean comdenstion water in the water storage disk 18, make the pollutant impurity on the filter screen 12 change and drop and brush away the pollutant, the cleaning performance is good and high-efficient, can prevent to cause secondary pollution to filter screen 12 simultaneously to ensure that the indoor set of air conditioner blows off fresh healthy wind.
The embodiment of the self-cleaning control method of the air conditioner indoor unit comprises the following steps:
the self-cleaning control method of the indoor unit of the air conditioner in the embodiment is the self-cleaning control method of the indoor unit of the air conditioner in the embodiment, and the specific steps of the self-cleaning control method are as follows.
Referring to fig. 7, a flow chart of a self-cleaning control method for an indoor unit of an air conditioner in this embodiment is shown. Step S1 is executed, the air-conditioning indoor unit is turned on, step S2 is executed to obtain the cumulative time T1 for the turn-on operation of the air-conditioning indoor unit, step S3 is executed to determine whether the cumulative time T1 for the turn-on operation of the air-conditioning indoor unit is greater than or equal to the fourth preset time T, if yes, the air-conditioning indoor unit is operated in the defrosting mode of the evaporator 13, and step S6 is executed. If the cumulative time T1 for the indoor unit of the air conditioner to operate at the startup is less than the fourth preset time T, step S2 is executed.
Meanwhile, if the air-conditioning indoor unit of the present embodiment acquires the cleaning signal for the filter screen 12, that is, the step S4 is executed, which indicates that the air-conditioning indoor unit has a requirement for cleaning the filter screen 12, the step S5 is executed, the cumulative time T1 for the startup operation of the air-conditioning indoor unit is cleared, and then the air-conditioning indoor unit operates in the defrosting mode of the evaporator 13, that is, the step S6 is executed.
Therefore, when the air conditioning indoor unit of this embodiment operates for a certain period of time or a user remotely controls the air conditioning indoor unit to obtain the cleaning signal of the filter screen 12, the air conditioning indoor unit will operate in the defrosting mode of the evaporator 13.
Step S6 is executed, the indoor unit of the air conditioner operates in the frosting cooling mode for a second preset time to make the evaporator 13 frosted, and step S7 is executed, the indoor unit of the air conditioner operates in the heating mode for a third preset time to melt the frost on the evaporator 13, the frost water wraps the pollutant impurities on the evaporator 13 and flows into the water receiving tray 14 below the evaporator 13, and the sewage in the water receiving tray 14 flows into the water collecting box 15 to be stored. Then, step S8 is executed, the indoor unit of the air conditioner executes a cooling mode, and the heating module 16 is turned on for a first preset time and then turned off, that is, the heating module 16 in the water collecting box 15 is turned on to heat the frost water in the water collecting box 15, so that the frost water in the water collecting box 15 forms water vapor and is separated from pollutants such as dust, textile fibers, animal hair, and the like, the water vapor evaporates and rises and is conveyed into the water storage tray 18 through the drainage tube 17, and meanwhile, the copper tube 131 extending to the bottom of the water storage tray 18 cools the water vapor in the water storage tray 18 to form clean condensed water, and at this time, the switch control mechanism controls the cover plate 113 to close the drain opening 181 of the water storage tray 18.
When the heating module 16 is turned on for a first preset time and then turned off, step S9 is executed, the driving control mechanism controls the filter screen 12 to move for a preset number of turns, that is, the driving motor 113 can control the driving wheel 112 to rotate, the closed loop filter screen 12 can move around the driving wheel 112 and the driven wheel 111 in a reciprocating and circulating manner, along with the movement of the filter screen 12, the cleaning brush 110 cleans the impurity pollutants on the outer side surface of the filter screen 12 in water, the clean condensed water in the water storage tray 18 is used for infiltrating the filter screen 12, so that the impurities on the filter screen 12 are more likely to fall off and the pollutants are brushed away, after the filter screen 12 rotates for one turn, the driving motor 113 stops rotating, step S10 is executed, after the driving motor 113 stops rotating to stop moving the filter screen 12, the switch control mechanism controls the cover plate 113 to open the drain opening 181, so that the sewage after the filter screen 12 is cleaned flows into the water collection box 15 below, thereafter, step S11 is performed, and the water collecting box 15 is opened to guide the contaminated water to the outside through the drain pipe 115.
The above embodiments are merely preferred examples of the present invention, and not intended to limit the scope of the invention, so that equivalent changes or modifications made based on the structure, characteristics and principles of the invention as claimed should be included in the claims of the present invention.
Claims (13)
1. The air-conditioning indoor unit comprises a shell, a filter screen, an evaporator, a drive control mechanism, a water storage disc and a cleaning brush, wherein the evaporator is arranged in the shell, the shell is provided with an air inlet, the filter screen is movably supported in the shell and is arranged close to the air inlet, and the water storage disc is positioned at one end of the filter screen in the moving direction of the filter screen;
the drive control mechanism can control the filter screen to move so that one end of the filter screen is immersed in the water of the water storage disc, the cleaning brush is arranged in the water storage disc and is in contact with the outer side surface of the filter screen to clean the filter screen, and the drive control mechanism is characterized in that:
the air-conditioning indoor unit further comprises a water pan, a drainage tube, a cover plate, a switch control mechanism, a heating module and a cooling module, wherein the water pan is positioned below the evaporator and the water storage pan far away from the filter screen, the first end of the drainage tube is communicated with the water pan, and the second end of the drainage tube is inserted into the water storage pan;
the water storage tray is provided with a water outlet communicated with the water receiving tray, the switch control mechanism can control the cover plate to open or close the water outlet, the heating module is arranged in the water receiving tray, and the cooling module is arranged at the bottom of the water storage tray far away from the filter screen.
2. An indoor unit of an air conditioner according to claim 1, wherein:
one end of a part of copper pipe of the evaporator extends to the bottom of the water storage disc in the moving direction of the filter screen to form the cooling module.
3. An indoor unit of an air conditioner according to claim 2, wherein:
the bottom of the water storage disc is provided with an accommodating box, the cooling module is located in the accommodating box, and the second end of the drainage tube penetrates through the accommodating box and then is inserted into the water storage disc.
4. An indoor unit of an air conditioner according to claim 1, wherein:
in the normal direction of the filter screen, the heating module is arranged corresponding to the first end of the drainage tube.
5. An indoor unit of an air conditioner according to claim 1, wherein:
the water collecting tray is provided with a water collecting box at one end, close to the water storage tray, of the filter screen in the moving direction, the water collecting box is communicated with the water collecting tray, the first end of the drainage tube is communicated with the water collecting box, the heating module is arranged in the water collecting box, and the water outlet is communicated with the water collecting box.
6. An indoor unit of an air conditioner according to claim 5, wherein:
the bottom end of the water collecting box, which is far away from the water storage disc in the normal direction of the filter screen, is communicated with a drain pipe, and one end of the drain pipe, which is far away from the water collecting box, extends out of the shell.
7. An indoor unit of an air conditioner according to claim 1, wherein:
the switch control mechanism can control the cover plate to rotationally open or close the water drainage opening.
8. An indoor unit of an air conditioner according to any one of claims 1 to 7, wherein:
the driving control mechanism comprises a driving wheel, a driven wheel and a driving motor, the driving wheel and the driven wheel are positioned at two ends of the filter screen in the moving direction of the filter screen, the driving wheel is rotatably supported in the shell, and the driven wheel is rotatably supported in the water storage disc;
the filter screen is in closed-loop sleeve joint between the driving wheel and the driven wheel, and the driving motor can control the rotation of the driving wheel.
9. A self-cleaning control method of an air conditioner indoor unit is characterized in that:
the indoor unit of air conditioner is the indoor unit of air conditioner as claimed in any one of claims 1 to 8, and the self-cleaning control method comprises the following steps:
after the air-conditioning indoor unit finishes the operation of the evaporator defrosting mode, the air-conditioning indoor unit executes the refrigerating mode, the heating module is turned off after being turned on for a first preset time, and the driving control mechanism controls the filter screen to move.
10. The self-cleaning control method of an indoor unit of an air conditioner according to claim 9, wherein:
the evaporator defrost mode includes: and after the air-conditioning indoor unit operates for the second preset time in the frosting refrigeration mode, the air-conditioning indoor unit operates for the third preset time in the heating mode.
11. The self-cleaning control method of an indoor unit of an air conditioner according to claim 9, wherein:
and before the air-conditioning indoor unit operates in the evaporator defrosting mode, determining that the cumulative time of starting operation of the air-conditioning indoor unit is greater than or equal to fourth preset time.
12. The self-cleaning control method of an indoor unit of an air conditioner according to claim 9, wherein:
the self-cleaning control method further includes:
when the filter screen stops moving, the switch control mechanism controls the cover plate to open the water outlet.
13. Air conditioning system, including the air conditioning indoor set, its characterized in that:
the indoor unit of an air conditioner is the indoor unit of an air conditioner according to any one of claims 1 to 8.
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| CN114963302B (en) | 2023-04-25 |
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