Water drainage abnormity detection method and device of air conditioner, air conditioner and storage medium

Abstract

The invention discloses an abnormal drainage detection method and device of an air conditioner, the air conditioner and a storage medium. The air conditioner comprises a water pan and a drainage system, the drainage system comprises a drainage pump, a spray head and a filter screen arranged at an inlet of the drainage pump, and the method comprises the steps that the drainage pump is controlled to operate so that condensate water in the water pan can be pumped to the spray head, and the condensate water is atomized and sprayed into outdoor air through the spray head; acquiring running time of the drainage pump and water level of the water pan; and according to the operation time and the water level, determining whether the drainage system is filth-blocked. Therefore, whether filth blockage occurs in the drainage system can be determined according to the running time and the water level, and a user is reminded when filth blockage occurs in the drainage system, so that the user can clean the filter screen, the drainage pump or the spray head in time, the service life of the drainage system is prolonged, and normal use of the air conditioner is ensured; and extra cleaning workload caused by repeated cleaning due to the fact that a user does not know the filth blockage condition of the drainage system can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a method and device for detecting drainage anomalies of an air conditioner, an air conditioner and a storage medium. Background Art

[0002] During the cooling process of the air conditioner, water vapor in the air will condense into water when it hits the low-temperature evaporator and flow into the water collection pan. Usually, the condensed water will flow from the water collection pan to a drain pipe at a lower position and then be discharged to the outside, or the condensed water will be discharged to a drain pipe higher than the water collection pan through a drain pump and then discharged to the outside. However, in special occasions such as the renovation of old houses, there is usually no drain pipe outdoors, so the method of draining the condensed water to the outside through the drain pipe will be difficult to implement.

[0003] In the related art, the condensed water is pumped outside under pressure by a drainage pump and sprayed into the air through a nozzle. This method requires water quality control, such as filtering the condensed water through a filter. However, since dust and foreign matter in the air will dissolve into the water, and bacteria may also grow in the water, the filter, drainage pump or nozzle is prone to dirtiness or even blockage, thus affecting the normal operation of the air conditioner.

[0004] It should be noted that the information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the purpose of the present invention is to provide a drainage anomaly detection method, device, air conditioner and storage medium for an air conditioner, which can determine whether the drainage system is blocked according to the operating time and water level, and remind the user when the drainage system is blocked, so that the user can clean the filter, drainage pump or nozzle in time, improve the service life of the drainage system, ensure the normal use of the air conditioner, and avoid the user from cleaning the drainage system multiple times due to not understanding the blockage of the drainage system, resulting in extra cleaning workload.

[0006] To achieve the above-mentioned purpose, an embodiment of the first aspect of the present invention provides a method for detecting drainage anomalies of an air conditioner, wherein the air conditioner includes a water receiving pan and a drainage system, the drainage system includes a drainage pump, a nozzle and a filter screen arranged at the inlet of the drainage pump, and the method includes: controlling the operation of the drainage pump to pump the condensed water in the water receiving pan to the nozzle, and atomizing the condensed water into the outdoor air through the nozzle; obtaining the operating time of the drainage pump and the water level of the water receiving pan; and determining whether the drainage system is dirty and blocked according to the operating time and the water level.

[0007] According to the drainage abnormality detection method of the air conditioner according to the embodiment of the present invention, during the operation of the drainage pump, the operating time of the drainage pump and the water level of the water receiving pan are obtained, and whether the drainage system is blocked or not is determined based on the operating time and water level. When the drainage system is blocked or not, the user is reminded so that the user can clean the filter, drainage pump or nozzle in time, thereby increasing the service life of the drainage system and ensuring the normal use of the air conditioner. It can also avoid the user cleaning the drainage system multiple times due to not understanding the blockage of the drainage system, thereby generating extra cleaning workload.

[0008] In some embodiments of the present invention, whether the drainage system is clogged with dirt is determined based on the operating time and the water level, including: when the operating time reaches a first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the drainage system is clogged with dirt.

[0009] In some embodiments of the present invention, the method for detecting drainage anomalies of an air conditioner further includes: obtaining the water outlet pressure or operating current of the drainage pump; and determining whether the drainage system is blocked by dirt based on the operating time, water level and water outlet pressure or operating current.

[0010] In some embodiments of the present invention, whether the drainage system is clogged with dirt is determined based on the operating time, water level and water outlet pressure, including: when the water outlet pressure is less than a first preset pressure and the operating time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the filter is clogged with dirt; when the water outlet pressure is greater than or equal to the first preset pressure and the operating time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the nozzle is clogged with dirt.

[0011] In some embodiments of the present invention, when it is determined that the filter is clogged, the air conditioner drainage abnormality detection method includes: determining the degree of clogging of the filter according to the water outlet pressure, wherein the water outlet pressure is inversely proportional to the degree of clogging.

[0012] In some embodiments of the present invention, whether the drainage system is clogged with dirt is determined based on the operating time, water level and operating current, including: when the operating current is less than a first preset current and the operating time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the filter is clogged with dirt; when the operating current is greater than or equal to the first preset current and the operating time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the nozzle is clogged with dirt.

[0013] In some embodiments of the present invention, when it is determined that the filter is clogged, the air conditioner drainage abnormality detection method includes: determining the degree of clogging of the filter according to the operating current, wherein the operating current is inversely proportional to the degree of clogging.

[0014] In some embodiments of the present invention, the method for detecting drainage anomalies of an air conditioner further includes: controlling the cooling operation of the air conditioner and obtaining the water level of the water receiving pan; and when the water level reaches a first water level, controlling the drainage pump to operate.

[0015] In some embodiments of the present invention, the method for detecting drainage anomaly of an air conditioner further comprises: in response to a cooling stop instruction of the air conditioner, controlling the drainage pump to stop running after a delay of a second preset time.

[0016] To achieve the above-mentioned purpose, a second aspect of the present invention provides a computer-readable storage medium having a program stored thereon, which, when executed by a processor, implements the drainage abnormality detection method for an air conditioner according to any of the above-mentioned embodiments.

[0017] According to the computer-readable storage medium of an embodiment of the present invention, based on the aforementioned drainage abnormality detection method of the air conditioner, it is determined whether the drainage system is dirty or blocked according to the operating time, water level, water outlet pressure or operating current, and the user is reminded when the drainage system is dirty or blocked, so that the user can clean the filter, drainage pump or nozzle in time, thereby increasing the service life of the drainage system, ensuring the normal use of the air conditioner, and avoiding the user from cleaning the drainage system multiple times due to lack of understanding of the dirtiness and blockage of the drainage system, thereby generating additional cleaning workload.

[0018] To achieve the above-mentioned purpose, an embodiment of the third aspect of the present invention provides an air conditioner, including: a memory, a processor, and a program stored in the memory and executable on the processor. When the processor executes the program, the drainage abnormality detection method of the air conditioner of any of the above-mentioned embodiments is implemented.

[0019] The air conditioner according to the embodiment of the present invention, based on the aforementioned drainage abnormality detection method of the air conditioner, determines whether the drainage system is dirty or blocked according to the operating time, water level, water outlet pressure or operating current, and reminds the user when the drainage system is dirty or blocked, so that the user can clean the filter, drainage pump or nozzle in time, thereby increasing the service life of the drainage system, ensuring the normal use of the air conditioner, and avoiding the user from cleaning the drainage system multiple times due to lack of understanding of the dirtiness and blockage of the drainage system, thereby generating extra cleaning workload.

[0020] To achieve the above-mentioned purpose, an embodiment of the fourth aspect of the present invention provides a drainage abnormality detection device for an air conditioner, the air conditioner includes a water receiving pan and a drainage system, the drainage system includes a drainage pump, a nozzle and a filter screen arranged at the inlet of the drainage pump, and the device includes: a control module, used to control the operation of the drainage pump to pump the condensed water in the water receiving pan to the nozzle, and atomize the condensed water into the outdoor air through the nozzle; an acquisition module, used to obtain the running time of the drainage pump and the water level of the water receiving pan; a judgment module, used to determine whether the drainage system is dirty and blocked according to the running time and the water level.

[0021] According to the drainage abnormality detection device of the air conditioner according to the embodiment of the present invention, the control module controls the operation of the drainage pump to pump the condensed water in the water receiving tray to the nozzle, and the condensed water is atomized and sprayed into the outdoor air through the nozzle, and the operation time of the drainage pump and the water level of the water receiving tray are obtained through the acquisition module, and the judgment module determines whether the drainage system is blocked according to the operation time and water level, and reminds the user when the drainage system is blocked, so that the user can clean the filter, drainage pump or nozzle in time, thereby improving the service life of the drainage system and ensuring the normal use of the air conditioner. It can also avoid the user from cleaning the drainage system multiple times due to not understanding the blockage of the drainage system, thereby generating extra cleaning workload.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 1 is a flow chart of a method for detecting abnormal drainage of an air conditioner according to an embodiment of the present invention.

[0025] Figure 2 is a structural block diagram of an air conditioner according to an embodiment of the present invention.

[0026] Figure 3 FIG. 4 is a flow chart of a method for detecting abnormal drainage of an air conditioner according to another embodiment of the present invention.

[0027] Figure 4 FIG. 4 is a flow chart of a method for detecting abnormal drainage of an air conditioner according to another embodiment of the present invention.

[0028] Figure 5 FIG. 4 is a flow chart of a method for detecting drainage anomaly of an air conditioner according to another embodiment of the present invention.

[0029] Figure 6 is a structural block diagram of an air conditioner according to another embodiment of the present invention.

[0030] Figure 7 4 is a structural block diagram of a drainage anomaly detection device for an air conditioner according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0032] The following describes in detail the method, device, air conditioner and storage medium for detecting drainage anomaly of an air conditioner according to the embodiments of the present invention in conjunction with the accompanying drawings.

[0033] Figure 1 1 is a flow chart of a method for detecting abnormal drainage of an air conditioner according to an embodiment of the present invention.

[0034] like Figure 1 As shown, the method for detecting abnormal drainage of an air conditioner may include:

[0035] S11: Control the operation of the drainage pump to pump the condensed water in the water receiving pan to the nozzle, and spray the condensed water into outdoor air through the nozzle.

[0036] For example, refer to Figure 2 The air conditioner includes a water receiving pan and a drainage system, and the drainage system includes a drainage pump, a nozzle, and a filter screen arranged at the inlet of the drainage pump. The filter screen is arranged in the water receiving pan and is connected to the inlet of the drainage pump through an inlet pipe, and the outlet of the drainage pump is connected to the nozzle through an outlet pipe. When discharging condensed water, the controller controls the operation of the drainage pump. At this time, the condensed water in the water receiving pan is filtered through the filter screen and then enters the drainage pump, which is pumped to the nozzle by the drainage pump. The condensed water is atomized by the nozzle and sprayed into the outdoor air to achieve the discharge of condensed water.

[0037] It should be noted that the water tray can be set in the indoor unit of the air conditioner (such as Figure 2 The nozzle can be set on the outdoor unit of the air conditioner, or it can be set in the outdoor unit of the air conditioner, or a second water receiving tray (such as a bucket, a water tank, etc.) can be added to increase the volume of the water receiving tray to avoid noise and other problems caused by frequent start and stop of the drainage pump. The nozzle can be set on the outdoor unit of the air conditioner, or it can be set at other locations that can discharge the atomized water vapor into the outdoor air, which is not limited here.

[0038] S12: Obtain the running time of the drain pump and the water level of the water tray.

[0039] For example, refer to Figure 2 A lower water level switch and an upper water level switch are also provided in the water receiving tray. The water level of the water receiving tray is detected by the lower water level switch and the upper water level switch and sent to the controller, so that the controller can determine the dirtiness and blockage of the drainage system according to the water level of the water receiving tray and the running time of the drainage pump.

[0040] Specifically, when the air conditioner is in cooling operation, the condensed water in the water receiving pan continues to increase. When the water level in the water receiving pan reaches the first water level, that is, when the upper water level switch is triggered, the controller controls the drain pump to run, and during the operation of the drain pump, the running time of the drain pump and the water level in the water receiving pan are obtained to determine whether the drainage system is dirty or blocked. Among them, the first water level may be the water level corresponding to when the water receiving pan is full of water, that is, when this water level is reached, it means that the water receiving pan is full of water. At this time, it is necessary to control the drain pump to pump the condensed water to the nozzle to discharge the condensed water. It should be noted that when the air conditioner is in cooling operation and the water level in the water receiving pan reaches the first water level, the drain pump is controlled to run, which can avoid dry pumping and high noise of the drain pump and increase the service life of the drain pump.

[0041] S13: Determine whether the drainage system is clogged based on the operating time and water level.

[0042] Specifically, under normal circumstances, when the air conditioner is in cooling operation, the condensed water in the water receiving pan continues to increase. When the water level in the water receiving pan reaches the first water level, the drain pump is controlled to operate, and the filter at the inlet of the drain pump will filter the condensed water in the water receiving pan. The filtered condensed water is pumped to the nozzle through the drain pump, and sprayed to the outdoor air through the nozzle. As the drain pump runs, the condensed water in the water receiving pan will gradually decrease. However, since dust, foreign matter, etc. in the air will dissolve into the condensed water, and the condensed water may also produce bacteria, the filter will become dirty or even blocked, resulting in the condensed water being unable to be discharged. Therefore, during the operation of the drain pump, the running time of the drain pump is also obtained, and when the running time reaches a certain value, it is determined whether the drainage system is dirty or blocked based on the water level of the water receiving pan. For example, as the running time of the drain pump increases, if the water level in the water receiving pan no longer drops, it means that the filter of the drainage system may be dirty and blocked, resulting in the condensed water in the water receiving pan being unable to be discharged in time, affecting the normal operation of the air conditioner. At this time, the user can be reminded to clean it to ensure that the air conditioner can work normally.

[0043] In the above embodiment, during the operation of the drain pump, the operating time of the drain pump and the water level of the water tray are obtained, and whether the drainage system is clogged or not is determined based on the operating time and water level. When the drainage system is clogged or not, the user is reminded so that the user can clean the filter, drain pump or nozzle in time, thereby increasing the service life of the drainage system, ensuring that the air conditioner can work normally, and avoiding the user from cleaning the drainage system multiple times due to lack of understanding of the clogged or dirty condition of the drainage system, thereby generating extra cleaning workload.

[0044] In some embodiments, determining whether the drainage system is clogged with dirt is based on the operating time and the water level, including: when the operating time reaches a first preset time, if the water level does not drop from the first water level to the second water level, determining that the drainage system is clogged with dirt.

[0045] It should be noted that the first preset time can be the shortest time for the condensed water in the water receiving pan to drop from the first water level to the second water level during the operation of the drainage pump when the drainage system is not blocked by dirt, for example, the first preset time is 10 minutes. The second water level can be a water level with less condensed water in the water receiving pan. When this water level is reached, that is, when the lower water level switch is triggered, it means that the water receiving pan is at a safe water level, and the drainage pump can stop working at this time.

[0046] Specifically, when the air conditioner is in cooling operation, when the water level in the water tray reaches a first water level, the drain pump is controlled to operate and the operating time of the drain pump is obtained. When the operating time reaches a first preset time, if the water level in the water tray drops from the first water level to the second water level, it is determined that the drainage system is not blocked by dirt; if the water level in the water tray does not drop from the first water level to the second water level, it is determined that the drainage system is blocked by dirt.

[0047] For example, Figure 3 As shown, the method for detecting abnormal drainage of an air conditioner may include:

[0048] S21: The air conditioner is turned on and running.

[0049] S22: Determine whether the air conditioner is in cooling operation, if so, proceed to S23.

[0050] S23: Determine whether the water level in the water receiving tray reaches the first water level, if so, proceed to S24, if not, proceed to S30.

[0051] S24: Control the operation of the drainage pump to pump the condensed water in the water receiving tray to the nozzle, and spray the condensed water into the outdoor air through the nozzle.

[0052] S25: The timer is reset and starts timing.

[0053] S26: Determine whether the timing time (ie, the running time of the drainage pump) reaches the first preset time. If so, proceed to S27; if not, proceed to S29.

[0054] S27: Determine whether the water level of the water receiving tray has dropped from the first water level to the second water level. If not, proceed to S28; if so, proceed to S30.

[0055] S28: Determine that the drainage system is clogged and issue a drainage system cleaning prompt.

[0056] S29: Determine whether the water level of the water receiving tray has dropped from the first water level to the second water level. If so, proceed to S30; if not, proceed to S26.

[0057] S30: Control the drainage pump to stop running.

[0058] That is to say, during the normal operation of the drain pump, if the running time of the drain pump reaches the first preset time, but the water level has not dropped from the first water level to the second water level, it means that the filter of the drainage system may be dirty and blocked, resulting in a small flow rate of condensed water pumped by the drain pump, resulting in the condensed water in the water tray unable to be discharged in time, affecting the normal operation of the air conditioner. In this way, the dirt and blockage of the drainage system can be detected according to the running time of the drain pump and the water level of the water tray, so as to promptly remind the user to clean the drainage system according to the detection results.

[0059] In some embodiments, the method for detecting drainage anomalies of an air conditioner further includes: obtaining the water outlet pressure or operating current of the drainage pump; and determining whether the drainage system is clogged based on the operating time, water level and water outlet pressure or operating current.

[0060] Specifically, the relationship between the outlet water pressure of the drainage pump and the dirty and blocked state of the filter and the nozzle was measured through experiments, as shown in Table 1:

[0061] Table 1

[0062] Water outlet pressure Bar The filter and nozzle are dirty and clogged 0 The filter is completely blocked, and the nozzle is normal 1 The filter is partially blocked, but the nozzle is normal 1.4 The filter is partially blocked, but the nozzle is normal 2.8 The filter is normal, but the nozzle is dirty and clogged 3 The filter is normal, the nozzle is normal

[0063] It can be seen from Table 1 that when the filter screen of the drainage system is clogged, impurities in the condensed water will restrict the condensed water from passing through the drainage pump, causing the outlet water pressure of the drainage pump to drop; when the nozzle of the drainage system is clogged, in order to avoid damage to the drainage pump, the outlet water pressure of the drainage pump will also drop, but it is still greater than the outlet water pressure when the filter screen is clogged, so the drainage system can be judged based on the outlet water pressure of the drainage pump. The outlet water pressure of the drainage pump can be obtained by a water outlet pressure sensor provided at the outlet pipe of the drainage pump, and the water outlet pressure sensor sends the detected outlet water pressure to the controller, so that the controller can judge the drainage system according to the outlet water pressure.

[0064] The relationship between the operating current of the drainage pump and the dirty and blocked state of the filter and nozzle was measured experimentally, as shown in Table 2:

[0065] Table 2

[0066] Voltage V Current A Power W The filter and nozzle are dirty and clogged 12.05 0.2738 3.28 The filter is completely blocked, and the nozzle is normal 12.04 0.3432 4.11 The filter is partially blocked, but the nozzle is normal 12.03 0.3722 4.45 The filter is partially blocked, but the nozzle is normal 12.28 0.5148 6.18 The filter is normal, but the nozzle is dirty and clogged 11.99 0.5912 7.04 The filter is normal, the nozzle is normal

[0067] It can be seen from Table 2 that when the filter of the drainage system is clogged, impurities in the condensed water will restrict the condensed water from passing through the drainage pump, causing the operating current of the drainage pump to decrease; when the nozzle of the drainage system is clogged, in order to avoid damage to the drainage pump, the operating current of the drainage pump will also decrease, but it is still greater than the operating current when the filter is clogged, so the drainage system can be judged based on the operating current of the drainage pump. Among them, the operating current of the drainage pump can be obtained through the current sensor, so that the controller can judge the drainage system based on the operating current.

[0068] It can be understood that, from Table 1 and Table 2, it can be seen that the outlet water pressure of the drainage pump is positively correlated with the operating current of the drainage pump. The greater the operating current, the greater the outlet water pressure of the drainage pump, and vice versa.

[0069] Specifically, when the air conditioner is in cooling operation, when the water level in the water tray reaches the first water level, the drain pump is controlled to operate, and the operating time and water outlet pressure of the drain pump are obtained. Based on the operating time and water outlet pressure of the drain pump and the water level of the water tray, it is determined whether the drainage system is blocked by dirt; or, the operating time and operating current of the drain pump are obtained, and based on the operating time and operating current of the drain pump and the water level of the water tray, it is determined whether the drainage system is blocked by dirt. Specifically, it can be determined whether the filter is blocked by dirt or the nozzle is blocked by dirt, and the degree of blockage. Taking the outlet water pressure as an example, as the running time of the drain pump increases, if the water level in the water tray no longer drops and the outlet water pressure of the drain pump is low, it means that the filter of the drainage system may be blocked by dirt; if the water level in the water tray no longer drops and the outlet water pressure of the drain pump is high, it means that the nozzle of the drainage system may be blocked by dirt, resulting in the inability to discharge the condensed water in the water tray in time, affecting the normal operation of the air conditioner.

[0070] In this way, the dirt and blockage of the drainage system can be detected according to the operating time, water level and water outlet pressure or operating current, so as to promptly remind the user to clean the filter, drainage pump or nozzle according to the detection results.

[0071] In some embodiments, whether the drainage system is clogged with dirt is determined based on the running time, water level and outlet water pressure, including: when the outlet water pressure is less than the first preset pressure and the running time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the filter is clogged with dirt; when the outlet water pressure is greater than or equal to the first preset pressure and the running time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the nozzle is clogged with dirt. The first preset pressure can be measured based on experiments. For example, in the example shown in Table 1, the first preset pressure can be set to 2.5 Bar.

[0072] Specifically, when the air conditioner is in cooling operation, when the water level in the water receiving pan reaches a first water level, the drain pump is controlled to operate, and the operating time and water outlet pressure of the drain pump are obtained. When the water outlet pressure is less than a first preset pressure and the operating time reaches the first preset time, if the water level in the water receiving pan has not dropped from the first water level to the second water level, it means that the filter of the drainage system is clogged with dirt; when the water outlet pressure is greater than or equal to the first preset pressure and the operating time reaches the first preset time, if the water level in the water receiving pan has not dropped from the first water level to the second water level, it means that the nozzle of the drainage system is clogged with dirt.

[0073] In this way, the dirt and blockage of the drainage system can be detected according to the running time, water level and water outlet pressure, so as to remind the user to clean the filter, drainage pump or nozzle in time according to the detection results.

[0074] In some embodiments, when determining that the filter is clogged, the method includes: determining the degree of clogged filter according to the outlet water pressure. The outlet water pressure is inversely proportional to the degree of clogged filter, that is, the smaller the outlet water pressure, the more serious the clogged filter is, as shown in Table 1. In this way, not only can it be determined whether the filter is clogged, but also the degree of clogged filter can be determined, which is more conducive to the user to clearly understand the clogged filter condition.

[0075] For example, Figure 4 As shown, the method for detecting abnormal drainage of an air conditioner may include:

[0076] S31: The air conditioner is turned on and running.

[0077] S32: Determine whether the air conditioner is in cooling operation, if so, proceed to S33.

[0078] S33: Determine whether the water level in the water receiving tray reaches the first water level, if so, proceed to S34, if not, proceed to S44.

[0079] S34: Control the operation of the drainage pump to pump the condensed water in the water receiving tray to the nozzle, and spray the condensed water into outdoor air through the nozzle.

[0080] S35: the timer is reset and starts timing, and the outlet water pressure of the drainage pump is obtained at the same time. The outlet water pressure can be obtained in real time or after the drainage pump has been running for a period of time.

[0081] S36: Determine whether the water pressure is less than the first preset pressure, if so, proceed to S37, if not, proceed to S40.

[0082] S37: Determine whether the timing time (ie, the running time of the drainage pump) reaches the first preset time. If so, proceed to S38; if not, proceed to S43.

[0083] S38: Determine whether the water level of the water receiving tray has dropped from the first water level to the second water level. If not, proceed to S39; if yes, proceed to S44.

[0084] S39: Determine that the filter of the drainage system is dirty and clogged, and provide a filter cleaning prompt.

[0085] S40: Determine whether the timing time (ie, the running time of the drainage pump) reaches the first preset time. If so, proceed to S41; if not, proceed to S43.

[0086] S41: Determine whether the water level of the water receiving tray has dropped from the first water level to the second water level. If not, proceed to S42; if yes, proceed to S44.

[0087] S42: Determine that the nozzle of the drainage system is dirty and clogged, and issue a nozzle clogging prompt.

[0088] S43: Determine whether the water level of the water receiving tray has dropped from the first water level to the second water level. If so, proceed to S44; if not, proceed to S36.

[0089] S44: Control the drainage pump to stop running.

[0090] That is to say, when the outlet water pressure is less than the first preset pressure and the running time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the filter is clogged; when the outlet water pressure is greater than or equal to the first preset pressure and the running time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the nozzle is clogged. In this way, by obtaining the outlet water pressure, running time and water level of the water receiving tray of the drainage pump, the equipment with dirty and clogged drainage system can be determined, and a cleaning reminder can be issued to the user in a targeted manner, reducing the user's cleaning workload.

[0091] In some embodiments, determining whether the drainage system is clogged with dirt based on the operating time, water level, and operating current includes: when the operating current is less than the first preset current and the operating time reaches the first preset time, if the water level does not drop from the first water level to the second water level, then determining that the filter is clogged with dirt; when the operating current is greater than or equal to the first preset current and the operating time reaches the first preset time, if the water level does not drop from the first water level to the second water level, then determining that the nozzle is clogged with dirt. The first preset current can be measured based on experiments. For example, in the example shown in Table 2, the first preset current can be set to 0.49A.

[0092] Specifically, when the air conditioner is in cooling operation, when the water level in the water tray reaches a first water level, the drain pump is controlled to operate, and the operating time and operating current of the drain pump are obtained. When the operating current is less than a first preset current and the operating time reaches the first preset time, if the water level in the water tray has not dropped from the first water level to the second water level, it is determined that the filter is clogged with dirt; when the operating current is greater than or equal to the first preset current and the operating time reaches the first preset time, if the water level in the water tray has not dropped from the first water level to the second water level, it is determined that the nozzle is clogged with dirt.

[0093] In this way, the dirt and blockage of the drainage system can be detected according to the running time, water level and water outlet pressure, so as to remind the user to clean the filter, drainage pump or nozzle in time according to the detection results.

[0094] In some embodiments, when determining that the filter is clogged, the method includes: determining the degree of clogged filter according to the operating current. The operating current is inversely proportional to the degree of clogged filter, that is, the smaller the operating current, the more serious the clogged filter is, as shown in Table 2. In this way, not only can it be determined whether the filter is clogged, but also the degree of clogged filter can be determined, which is more conducive to the user to clearly understand the clogged filter.

[0095] For example, Figure 5 As shown, the method for detecting abnormal drainage of an air conditioner may include:

[0096] S51: The air conditioner is turned on and running.

[0097] S52: Determine whether the air conditioner is in cooling operation, if so, proceed to S53.

[0098] S53: Determine whether the water level in the water receiving tray reaches the first water level, if so, proceed to S54, if not, proceed to S64.

[0099] S54: Control the operation of the drainage pump to pump the condensed water in the water receiving tray to the nozzle, and spray the condensed water into outdoor air through the nozzle.

[0100] S55: the timer is reset and starts timing, and the operating current of the drainage pump is obtained at the same time. The operating current can be obtained in real time or after the drainage pump has been running for a period of time.

[0101] S56: Determine whether the running current is less than the first preset current, if so, proceed to S57, if not, proceed to S60.

[0102] S57: Determine whether the timing time (ie, the running time of the drainage pump) reaches the first preset time. If so, proceed to S58; if not, proceed to S63.

[0103] S58: Determine whether the water level of the water receiving tray has dropped from the first water level to the second water level. If not, proceed to S59; if yes, proceed to S64.

[0104] S59: Determine that the filter of the drainage system is dirty and clogged, and provide a filter cleaning prompt.

[0105] S60: Determine whether the timing time (ie, the running time of the drainage pump) reaches the first preset time. If so, proceed to S61; if not, proceed to S63.

[0106] S61: Determine whether the water level of the water receiving tray drops from the first water level to the second water level. If not, proceed to S62; if yes, proceed to S64.

[0107] S62: Determine that the nozzle of the drainage system is dirty and clogged, and issue a nozzle clogging prompt.

[0108] S63: Determine whether the water level of the water receiving tray has dropped from the first water level to the second water level. If so, proceed to S64; if not, proceed to S56.

[0109] S64: Control the drainage pump to stop running.

[0110] That is, when the operating current is less than the first preset current and the operating time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the filter is clogged; when the operating current is greater than or equal to the first preset current and the operating time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the nozzle is clogged. In this way, by obtaining the operating current, operating time and water level of the drainage pump, the device with dirty and clogged drainage system can be determined, and a cleaning reminder can be issued to the user in a targeted manner, reducing the user's cleaning workload.

[0111] It should be noted that the above method of determining whether the filter or nozzle of the drainage system is clogged by operating current, operating time and water level can also be used to determine whether the filter or nozzle of the drainage system is clogged by operating power, operating time and water level. When it is determined that the filter or nozzle of the drainage system is clogged by dirt, the air conditioner will issue a corresponding cleaning prompt or fault prompt, and will directly control the drainage pump to stop running in order to avoid the drainage pump continuing to work and affecting its service life.

[0112] In some embodiments, the method for detecting drainage anomalies of an air conditioner further includes: in response to a cooling stop instruction of the air conditioner, controlling the drainage pump to stop running after a delay of a second preset time.

[0113] Specifically, after the air conditioner stops cooling, there may still be residual condensed water in the water receiving tray and the water inlet or outlet pipes. In order to prevent bacteria from growing in the water and affecting the health of users, or condensed water from freezing and damaging the water inlet, outlet or nozzles when the weather is cold, in some embodiments, when it is not determined that the filter screen or nozzle of the drainage system is dirty and blocked, when the air conditioner stops cooling, the drainage pump is also controlled to stop running after a second preset time to drain as much condensed water as possible. The second preset time is a natural number greater than or equal to 0, such as 3 minutes.

[0114] In the above embodiment, during the operation of the drain pump, the operating time of the drain pump and the water level of the water tray are obtained, and whether the drainage system is clogged or not is determined based on the operating time and water level. When the drainage system is clogged or not, the user is reminded so that the user can clean the filter, drain pump or nozzle in time, thereby avoiding the user from cleaning the drainage system multiple times due to lack of understanding of the clogged or not condition, thereby generating extra cleaning workload, and avoiding the drainage pump system from being in an overloaded state for a long time, thereby increasing the service life of the drainage system, etc.

[0115] It should be noted that the specific numerical values ​​mentioned above are only used as examples to illustrate the implementation of the present invention in detail, and should not be understood as limiting the present invention. In other examples or implementations or embodiments, other numerical values ​​can be selected according to the present invention, and are not specifically limited here.

[0116] Corresponding to the above embodiments, an embodiment of the present invention further provides a computer-readable storage medium on which a program is stored, and when the program is executed by a processor, the method for detecting drainage anomalies of an air conditioner according to any of the above embodiments is implemented.

[0117] According to the computer-readable storage medium of an embodiment of the present invention, based on the aforementioned drainage abnormality detection method of the air conditioner, it is determined whether the drainage system is dirty or blocked according to the operating time, water level, water outlet pressure or operating current, and the user is reminded when the drainage system is dirty or blocked, so that the user can clean the filter, drainage pump or nozzle in time, thereby increasing the service life of the drainage system, ensuring the normal use of the air conditioner, and avoiding the user from cleaning the drainage system multiple times due to lack of understanding of the dirtiness and blockage of the drainage system, thereby generating additional cleaning workload.

[0118] It should be pointed out that the above-mentioned explanation of the embodiment and beneficial effects of the method for detecting drainage anomalies of an air conditioner is also applicable to the computer-readable storage medium of the embodiment of the present invention, and will not be elaborated here in detail to avoid redundancy.

[0119] Corresponding to the above embodiment, an embodiment of the present invention further provides an air conditioner.

[0120] Figure 6 FIG. 1 is a block diagram of an air conditioner according to an embodiment of the present invention. Figure 6 As shown, the air conditioner 100 includes: a memory 102, a processor 104, and a program 106 stored in the memory 102 and executable on the processor 104. When the processor 104 executes the program 106, the drainage abnormality detection method for the air conditioner of any of the above embodiments is implemented.

[0121] The air conditioner according to the embodiment of the present invention, based on the aforementioned drainage abnormality detection method of the air conditioner, determines whether the drainage system is dirty or blocked according to the operating time, water level, water outlet pressure or operating current, and reminds the user when the drainage system is dirty or blocked, so that the user can clean the filter, drainage pump or nozzle in time, thereby increasing the service life of the drainage system, ensuring the normal use of the air conditioner, and avoiding the user from cleaning the drainage system multiple times due to lack of understanding of the dirtiness and blockage of the drainage system, thereby generating extra cleaning workload.

[0122] It should be pointed out that the above-mentioned explanation of the embodiment and beneficial effects of the method for detecting drainage anomalies of an air conditioner is also applicable to the air conditioner 100 of the embodiment of the present invention, and will not be elaborated here in detail to avoid redundancy.

[0123] Corresponding to the above embodiment, an embodiment of the present invention further provides a drainage anomaly detection device for an air conditioner, wherein the air conditioner comprises a water receiving tray and a drainage system, wherein the drainage system comprises a drainage pump, a nozzle and a filter screen arranged at the inlet of the drainage pump.

[0124] Figure 7 FIG. 1 is a block diagram of a drainage anomaly detection device for an air conditioner according to an embodiment of the present invention. Figure 7 As shown, the drainage anomaly detection device 300 of the air conditioner includes: a control module 302, an acquisition module 304 and a judgment module 306. The control module 302 is used to control the operation of the drainage pump to pump the condensed water in the water receiving tray to the nozzle, and the condensed water is atomized and sprayed into the outdoor air through the nozzle; the acquisition module 304 is used to obtain the running time of the drainage pump and the water level of the water receiving tray; the judgment module 306 is used to determine whether the drainage system is dirty and blocked according to the running time and water level.

[0125] According to the drainage abnormality detection device of the air conditioner according to the embodiment of the present invention, the control module controls the operation of the drainage pump to pump the condensed water in the water receiving tray to the nozzle, and the condensed water is atomized and sprayed into the outdoor air through the nozzle, and the operation time of the drainage pump and the water level of the water receiving tray are obtained through the acquisition module, and the judgment module determines whether the drainage system is blocked according to the operation time and water level, and reminds the user when the drainage system is blocked, so that the user can clean the filter, drainage pump or nozzle in time, thereby improving the service life of the drainage system and ensuring the normal use of the air conditioner. It can also avoid the user from cleaning the drainage system multiple times due to not understanding the blockage of the drainage system, thereby generating extra cleaning workload.

[0126] In some embodiments of the present invention, the judgment module 306 is specifically used to: when the running time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, determine that the drainage system is blocked by dirt.

[0127] In some embodiments of the present invention, the acquisition module 304 is specifically used to obtain the water outlet pressure or operating current of the drainage pump; the judgment module 306 is also used to determine whether the drainage system is blocked by dirt based on the operating time, water level and water outlet pressure or operating current.

[0128] In some embodiments of the present invention, the judgment module 306 is specifically used for: when the water outlet pressure is less than the first preset pressure and the running time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the filter is clogged with dirt; when the water outlet pressure is greater than or equal to the first preset pressure and the running time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the nozzle is clogged with dirt.

[0129] In some embodiments of the present invention, when it is determined that the filter is clogged, the judgment module 306 is specifically used to: determine the degree of clog of the filter according to the outlet water pressure, wherein the outlet water pressure is inversely proportional to the degree of clog.

[0130] In some embodiments of the present invention, the judgment module 306 is specifically used for: when the operating current is less than the first preset current and the operating time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the filter is clogged; when the operating current is greater than or equal to the first preset current and the operating time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the nozzle is clogged.

[0131] In some embodiments of the present invention, when it is determined that the filter is clogged, the judgment module 306 is specifically used to: determine the degree of clog of the filter according to the operating current, wherein the operating current is inversely proportional to the degree of clog.

[0132] In some embodiments of the present invention, the control module 302 is further used to: control the cooling operation of the air conditioner and obtain the water level of the water receiving tray; and control the operation of the drainage pump when the water level reaches the first water level.

[0133] In some embodiments of the present invention, the control module 302 is further configured to: in response to a cooling stop instruction of the air conditioner, control the drainage pump to stop running after a delay of a second preset time.

[0134] It should be pointed out that the above-mentioned explanation of the embodiment and beneficial effects of the method for detecting abnormal drainage of an air conditioner is also applicable to the abnormal drainage detection device 300 of an air conditioner according to the embodiment of the present invention, and will not be elaborated here in detail to avoid redundancy.

[0135] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, device or apparatus (such as a computer-based system, a system including a processor, or other system that can fetch instructions from an instruction execution system, device or apparatus and execute instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purposes of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus, or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection portion with one or more wirings (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0136] It should be understood that the various parts of the present invention can be implemented by hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, a plurality of steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented by hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0137] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0138] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0139] In addition, the terms "first", "second", etc. used in the embodiments of the present invention are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance, or implicitly indicating the number of technical features indicated in the present embodiment. Therefore, the features defined by the terms "first", "second", etc. in the embodiments of the present invention can explicitly or implicitly indicate that at least one of the features is included in the embodiment. In the description of the present invention, the meaning of the word "multiple" is at least two or two and above, such as two, three, four, etc., unless otherwise clearly and specifically defined in the embodiments. Relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise", or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0140] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, electronic device, and computer-readable storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0141] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for detecting abnormal drainage of an air conditioner, characterized in that: The air conditioner comprises a water receiving pan and a drainage system, the drainage system comprises a drainage pump, a nozzle and a filter screen arranged at the inlet of the drainage pump, and the method comprises: Controlling the operation of the drainage pump to pump the condensed water in the water receiving tray to the nozzle, and spraying the condensed water into outdoor air through the nozzle; Obtaining the running time of the drainage pump and the water level of the water receiving pan; Whether dirt blockage occurs in the drainage system is determined according to the operating time and the water level.

2. The method according to claim 1, characterized in that The determining, according to the running time and the water level, whether the drainage system is blocked by dirt comprises: When the running time reaches the first preset time, if the water level has not dropped from the first water level to the second water level, it is determined that the drainage system is clogged.

3. The method according to claim 1, characterized in that The method further comprises: Obtaining the water outlet pressure or operating current of the drainage pump; Whether the drainage system is clogged by dirt is determined based on the operating time, the water level and the outlet water pressure or the operating current.

4. The method according to claim 3, characterized in that Determining whether the drainage system is blocked by dirt according to the running time, the water level and the outlet water pressure includes: When the outlet water pressure is less than the first preset pressure and the running time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the filter screen is dirty and clogged; When the water outlet pressure is greater than or equal to the first preset pressure and the running time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the nozzle is dirty and clogged.

5. The method according to claim 4, characterized in that When it is determined that the filter screen is dirty and clogged, the method includes: The degree of dirtiness and blockage of the filter screen is determined according to the outlet water pressure, wherein the outlet water pressure is inversely proportional to the degree of dirtiness and blockage.

6. The method according to claim 3, characterized in that Determining whether the drainage system is blocked by dirt according to the running time, the water level and the running current includes: When the operating current is less than the first preset current and the operating time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the filter screen is dirty and clogged; When the operating current is greater than or equal to the first preset current and the operating time reaches the first preset time, if the water level does not drop from the first water level to the second water level, it is determined that the nozzle is dirty and clogged.

7. The method according to claim 6, characterized in that When it is determined that the filter screen is dirty and clogged, the method includes: The degree of dirtiness and clogging of the filter is determined according to the operating current, wherein the operating current is inversely proportional to the degree of dirtiness and clogging.

8. The method according to claim 2, characterized in that: The method further comprises: Controlling the cooling operation of the air conditioner and obtaining the water level of the water receiving pan; When the water level reaches the first water level, the drainage pump is controlled to operate.

9. The method according to any one of claims 1 to 8, characterized in that: The method further comprises: In response to a cooling stop instruction of the air conditioner, the drainage pump is controlled to stop running after a delay of a second preset time.

10. A computer-readable storage medium, characterized in that: A program is stored thereon, and when the program is executed by a processor, the method for detecting drainage anomalies of an air conditioner according to any one of claims 1 to 9 is implemented.

11. An air conditioner, characterized in that: include: A memory, a processor, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, the method for detecting drainage anomalies of an air conditioner according to any one of claims 1 to 8 is implemented.

12. A drainage abnormality detection device for an air conditioner, characterized in that: The air conditioner comprises a water receiving pan and a drainage system, wherein the drainage system comprises a drainage pump, a nozzle and a filter screen arranged at the inlet of the drainage pump, and the device comprises: A control module, used for controlling the operation of the drainage pump to pump the condensed water in the water receiving tray to the nozzle, and spraying the condensed water into outdoor air through the nozzle; An acquisition module, used for acquiring the operation time of the drainage pump and the water level of the water receiving pan; The judgment module is used to determine whether the drainage system is blocked by dirt according to the running time and the water level.

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