Air conditioner drainage control method and device, air conditioner drainage system and medium

Abstract

The invention discloses a drainage control method and device of an air conditioner, an air conditioner drainage system and a medium. The air conditioner comprises an outdoor drainage system and an indoor drainage system, and the indoor drainage system comprises an indoor water tank located below an indoor heat exchanger and an indoor drainage water pump used for draining water in the indoor water tank to the outdoor; the outdoor drainage system comprises an outdoor water tank located below the outdoor heat exchanger and an outdoor drainage water pump used for draining water in the outdoor water tank to the indoor water tank. The drainage control method comprises the following steps: acquiring indoor water level information of an indoor water tank and outdoor water level information of an outdoor water tank; according to the indoor water level information and the outdoor water level information, whether an outdoor drainage system is controlled to enter a drainage protection state is judged; and when the outdoor drainage system is in the drainage protection state, the outdoor drainage water pump is controlled to be closed within the protection preset duration. The drainage control method can improve the control logic of the drainage pump, reduce frequent starting of the drainage pump and prolong the service life of the drainage system of the air conditioner.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, and in particular to an air conditioning drainage control method, device, air conditioning drainage system and medium. Background Art

[0002] When the air conditioning system is running, condensed water will be generated on the heat exchanger of the system. The condensed water will fall along the heat exchanger and collect in the water receiving pan below the heat exchanger. Therefore, a condensed water discharge device is required to discharge the condensed water in the water receiving pan in time. Otherwise, the accumulation of condensed water will cause bacteria to multiply in large numbers and pollute the air; it will also affect the operation of electrical equipment. At present, most air conditioning systems have built-in drain pumps, which are used to discharge the condensed water collected in the water receiving pan. However, the control logic of the drain pump in the related technology is single, which leads to frequent startup of the drain pump and easily affects the service life of the drainage system of the air conditioning system. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide an air conditioning drainage control method, device, air conditioning drainage system and medium to improve the control logic of the drainage pump, reduce the frequent start-up of the drainage pump, and increase the service life of the air conditioning drainage system.

[0004] In a first aspect, an embodiment of the present invention provides a drainage control method for an air conditioner, wherein the air conditioner comprises an outdoor drainage system and an indoor drainage system, wherein the indoor drainage system comprises an indoor water tank located below an indoor heat exchanger and an indoor drainage water pump for draining water from the indoor water tank to the outdoors; the outdoor drainage system comprises an outdoor water tank located below an outdoor heat exchanger and an outdoor drainage water pump for draining water from the outdoor water tank to the indoor water tank; the drainage control method comprises:

[0005] Acquiring indoor water level information of the indoor water tank and outdoor water level information of the outdoor water tank;

[0006] According to the indoor water level information and the outdoor water level information, determining whether to control the outdoor drainage system to enter a drainage protection state;

[0007] When the outdoor drainage system is in the drainage protection state, the outdoor drainage water pump is controlled to be turned off within a preset protection time.

[0008] The drainage control method of the air conditioner provided by the embodiment of the present invention has at least the following beneficial effects: by real-time detection of the indoor water level information of the indoor water tank and the outdoor water level information of the outdoor water tank, the water content of both the indoor water tank and the outdoor water tank is determined, and then the indoor drainage pump and the outdoor drainage pump are controlled, and the water in the outdoor water tank is pumped to the indoor water tank by the outdoor drainage pump, or the water in the indoor water tank is discharged to the outside by the indoor drainage pump. Therefore, in extreme weather conditions, such as rainy days, the outdoor water tank will continue to trigger a water level warning and continue to be in a state of needing drainage. The rainwater in the outdoor water tank is pumped to the indoor water tank by the continuously operating outdoor drainage pump to lower the water level of the outdoor water tank, thereby causing the water level of the indoor water tank to gradually rise, changing the indoor water level information, and then it can be determined whether it is necessary to enter the drainage protection state, that is, to determine whether it is in extreme weather conditions, through the indoor water level information and the outdoor water level information. When in the drainage protection state, the outdoor drainage pump is controlled to stop running within the preset protection time, thereby stopping the detection of outdoor water level information and stopping the outdoor water tank from supplying water to the indoor water tank, improving the control logic of the indoor drainage pump and the indoor drainage pump, avoiding frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage, and increasing the service life of the air conditioner's drainage system.

[0009] In the drainage control method provided in the embodiment of the present invention, judging whether to control the outdoor drainage system to enter the drainage protection state according to the indoor water level information and the outdoor water level information includes:

[0010] When the indoor water level information shows that the indoor water level is higher than the first preset water level and lower than the second preset water level, and the outdoor water level information shows that the outdoor water level is higher than the third preset water level within the preset historical detection time, the indoor drainage pump is controlled to operate and the outdoor drainage system is controlled to enter the drainage protection state.

[0011] In the drainage control method provided in the embodiment of the present invention, when the indoor water level information indicates that the indoor water level is higher than a first preset water level and lower than a second preset water level, and the outdoor water level information indicates that the outdoor water level is higher than a third preset water level within a preset historical detection time, the indoor drainage pump is controlled to operate and the outdoor drainage system is controlled to enter a drainage protection state, including:

[0012] When the indoor water level information shows that the indoor water level is lower than the first preset water level, and the outdoor water level information shows that the outdoor water level is higher than the third preset water level, the outdoor drainage water pump is controlled to operate until the indoor water level information shows that the indoor water level is higher than the first preset water level and lower than the second preset water level, the indoor drainage water pump is controlled to operate and the outdoor drainage water pump is controlled to enter the drainage protection state.

[0013] In the drainage control method provided in the embodiment of the present invention, judging whether to control the outdoor drainage system to enter the drainage protection state according to the indoor water level information and the outdoor water level information includes:

[0014] When the indoor water level information shows that the indoor water level is higher than the first preset water level and lower than the second preset water level, and the outdoor water level information shows that the outdoor water level is lower than the third preset water level within the preset historical detection time, the indoor drainage pump is controlled to operate, and the outdoor drainage system is controlled not to enter the drainage protection state and the outdoor drainage pump is controlled to shut down.

[0015] In the drainage control method provided in the embodiment of the present invention, the drainage control method further includes:

[0016] When a forced drainage signal is received, the outdoor drainage pump is controlled to operate;

[0017] The forced drainage signal is generated according to a shutdown signal for controlling the air conditioner to shut down, or the forced drainage signal is generated according to a defrost signal for controlling the air conditioner to execute a defrost mode.

[0018] In the drainage control method provided in the embodiment of the present invention, judging whether to control the outdoor drainage system to enter the drainage protection state according to the indoor water level information and the outdoor water level information includes:

[0019] When the indoor water level information shows that the indoor water level is lower than the first preset water level, and the outdoor water level information shows that the outdoor water level is lower than the third preset water level and higher than the fourth preset water level, the outdoor drainage system is controlled not to enter the drainage protection state and the outdoor drainage water pump is controlled to operate.

[0020] In the drainage control method provided in the embodiment of the present invention, in the process of controlling the operation of the outdoor water pump, the drainage control method further includes:

[0021] When the indoor water level information indicates that the indoor water level is higher than a first preset water level and lower than a second preset water level, the operation of the outdoor drainage water pump is stopped, and the operation of the indoor drainage water pump is controlled.

[0022] The drainage control method provided in the embodiment of the present invention, in the process of controlling the operation of the indoor drainage water pump, includes:

[0023] When the operation time of the indoor drainage water pump reaches the preset indoor drainage time, or the operation times of the indoor drainage water pump reaches the preset indoor drainage times, the indoor drainage water pump is controlled to stop, and the operation of the outdoor drainage water pump is restored.

[0024] In the drainage control method provided in the embodiment of the present invention, the indoor drainage system further includes an indoor humidification water pump located in the indoor water tank, and an indoor nozzle for spraying humidification to the indoor heat exchanger, and the indoor humidification water pump is connected to the indoor nozzle; the method of judging whether to control the outdoor drainage system to enter the drainage protection state according to the indoor water level information and the outdoor water level information includes:

[0025] When the indoor water level information shows that the indoor water level is lower than the first preset water level, the outdoor water level information shows that the outdoor water level is lower than the fourth preset water level, and the preset humidity is higher than the ambient humidity of the environment in which the indoor heat exchanger is located, the outdoor drainage system is controlled not to enter the drainage protection state, and the indoor humidification water pump and the air conditioner fan are controlled to operate.

[0026] In the drainage control method provided in the embodiment of the present invention, in the process of controlling the operation of the outdoor drainage water pump, the drainage control method further includes:

[0027] When the outdoor drainage system meets outdoor abnormal conditions, an outdoor drainage fault reminder is issued, and the outdoor drainage water pump is controlled to stop;

[0028] Among them, the outdoor abnormal condition includes one of the following situations: the outdoor water level information is that the duration of the outdoor water level being higher than the fourth preset water level reaches the first outdoor abnormal duration; the continuous operation time of the outdoor drainage water pump reaches the second outdoor abnormal duration; the number of continuous operations of the outdoor drainage water pump reaches the first outdoor abnormal number of times; after the outdoor drainage water pump runs for the third outdoor abnormal duration, the outdoor water level information is that the outdoor water level is higher than the third preset water level.

[0029] In the drainage control method provided in the embodiment of the present invention, in the process of controlling the operation of the indoor drainage water pump, the drainage control method further includes:

[0030] When the indoor drainage system meets the indoor abnormal conditions, an indoor drainage fault reminder is issued, and the indoor drainage water pump and the outdoor drainage water pump are controlled to stop;

[0031] Among them, the indoor abnormal condition includes one of the following situations: the indoor water level information is that the duration of the indoor water level being higher than the first preset water level reaches the first indoor abnormal duration; the continuous operation time of the indoor drainage water pump reaches the second indoor abnormal duration; the number of continuous operations of the indoor drainage water pump reaches the first indoor abnormal number; the indoor water level information is that the indoor water level is higher than the second preset water level.

[0032] In a second aspect, an embodiment of the present invention provides an operation control device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the drainage control method as described in the embodiment of the first aspect above.

[0033] The operation control device provided by the embodiment of the present invention has at least the following beneficial effects: by real-time detection of the indoor water level information of the indoor water tank and the outdoor water level information of the outdoor water tank, the water content of both the indoor water tank and the outdoor water tank is determined, and then the indoor drainage pump and the outdoor drainage pump are controlled, and the water in the outdoor water tank is pumped to the indoor water tank by the outdoor drainage pump, or the water in the indoor water tank is discharged to the outside by the indoor drainage pump. Therefore, in extreme weather conditions, such as rainy days, the outdoor water tank will continue to trigger a water level warning and continue to be in a state of needing drainage. The rainwater in the outdoor water tank is pumped to the indoor water tank by the continuously operating outdoor drainage pump to lower the water level of the outdoor water tank, thereby causing the water level of the indoor water tank to gradually rise, changing the indoor water level information, and then it can be determined whether it is necessary to enter the drainage protection state, that is, to determine whether it is in extreme weather conditions, through the indoor water level information and the outdoor water level information. When in the drainage protection state, the outdoor drainage pump is controlled to stop running within the preset protection time, thereby stopping the detection of outdoor water level information and stopping the outdoor water tank from supplying water to the indoor water tank, improving the control logic of the indoor drainage pump and the indoor drainage pump, avoiding frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage, and increasing the service life of the air conditioner's drainage system.

[0034] In a third aspect, an embodiment of the present invention provides an air-conditioning drainage system, comprising an outdoor drainage system and an indoor drainage system, wherein the indoor drainage system comprises an indoor water tank located below an indoor heat exchanger and an indoor drainage water pump for draining water from the indoor water tank to the outdoors; the outdoor drainage system comprises an outdoor water tank located below an outdoor heat exchanger and an outdoor drainage water pump for draining water from the outdoor water tank to the indoor water tank.

[0035] The air conditioning drainage system provided by the embodiment of the present invention has at least the following beneficial effects: the outdoor water level detection device in the outdoor water tank is used to determine whether the outdoor water tank needs to be drained, so that the water in the outdoor water tank can be transported to the indoor water tank through the outdoor drainage water pump, thereby changing the water level of the indoor water tank, and the indoor water level detection device of the indoor water tank is used to determine whether the indoor water tank needs to be drained, and the water originally stored in the indoor water tank and the water transported by the outdoor drainage water pump can be discharged to the outside by spraying when the indoor drainage water pump is started. Therefore, the outdoor drainage and indoor drainage can be controlled by the water level triggering state of the outdoor water level detection device and the indoor water level detection device, and the water level triggering sequence of the indoor water level detection device and the indoor water level detection device can be used to determine whether it is in extreme weather conditions, so as to determine whether it is necessary to enter the drainage protection state to stop the operation of the outdoor drainage water pump, thereby reducing the frequent startup of the drainage pump and improving the service life of the drainage system of the air conditioner.

[0036] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the drainage control method as described in the embodiment of the first aspect above.

[0037] The computer-readable storage medium provided by the embodiment of the present invention has at least the following beneficial effects: by real-time detection of the indoor water level information of the indoor water tank and the outdoor water level information of the outdoor water tank, the water content of both the indoor water tank and the outdoor water tank is determined, and then the indoor drainage pump and the outdoor drainage pump are controlled, and the water in the outdoor water tank is pumped to the indoor water tank by the outdoor drainage pump, or the water in the indoor water tank is discharged to the outside by the indoor drainage pump. Therefore, in extreme weather conditions, such as rainy days, the outdoor water tank will continue to trigger a water level warning and continue to be in a state of needing drainage. The rainwater in the outdoor water tank is pumped to the indoor water tank by the continuously operating outdoor drainage pump to lower the water level of the outdoor water tank, thereby causing the water level of the indoor water tank to gradually rise, changing the indoor water level information, and then the indoor water level information and the outdoor water level information can be used to determine whether it is necessary to enter the drainage protection state, that is, to determine whether it is in extreme weather conditions. When in the drainage protection state, the outdoor drainage pump is controlled to stop running within the preset protection time, thereby stopping the detection of outdoor water level information and stopping the outdoor water tank from supplying water to the indoor water tank, improving the control logic of the indoor drainage pump and the indoor drainage pump, avoiding frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage, and increasing the service life of the air conditioner's drainage system.

[0038] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0040] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0041] Figure 1 is a structural schematic diagram of an air conditioner provided by an embodiment of the present invention;

[0042] Figure 2 is a structural schematic diagram of another air conditioner provided by an embodiment of the present invention;

[0043] Figure 3 is a flow chart of a drainage control method for an air conditioner provided by an embodiment of the present invention;

[0044] Figure 4 The embodiment of the present invention provides Figure 3 A schematic diagram of a specific process in step S120 is shown;

[0045] Figure 5 The embodiment of the present invention provides Figure 4 A schematic diagram of a specific process in step S210 is shown;

[0046] Figure 6 The embodiment of the present invention provides Figure 3 A schematic diagram of a specific process in step S120 is shown;

[0047] Figure 7 The embodiment of the present invention provides Figure 3 A schematic diagram of a specific process in the drainage control method shown;

[0048] Figure 8 The embodiment of the present invention provides Figure 3 A schematic diagram of a specific process in step S120 is shown;

[0049] Fig. 9 The embodiment of the present invention provides Figure 7 In step S140 shown in FIG. Figure 8 A schematic diagram of a specific process in step S510 is shown;

[0050] Fig.10 The embodiment of the present invention provides Fig. 9 A schematic diagram of a specific process in step S610 is shown;

[0051] Fig.11 The embodiment of the present invention provides Figure 3 A schematic diagram of a specific process in the drainage control method shown;

[0052] Fig.12 The embodiment of the present invention provides Figure 3 A schematic diagram of a specific process in the drainage control method shown;

[0053] Fig.13 The embodiment of the present invention provides Figure 3 A schematic diagram of a specific process in the drainage control method shown;

[0054] Fig.14 is an overall flow chart of a drainage control method for an air conditioner provided by a specific example;

[0055] Fig.15 It is a structural schematic diagram of the operation control device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0056] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0057] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, "above", "below", "within", etc. are understood to include the number itself, "at least one" means one or more, "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. If there is a description of the first and the second, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0058] It should be noted that the terms such as setting, installing, and connecting in the embodiments of the present invention should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the embodiments of the present invention in combination with the specific content of the technical solution. For example, the term "connection" can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected or indirectly connected through an intermediate medium.

[0059] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0060] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0061] At present, when the air conditioning system is running, condensed water will be generated on the heat exchanger of the system. The condensed water will fall along the heat exchanger and collect in the water receiving tray under the heat exchanger. Therefore, a condensed water discharge device is required to discharge the condensed water in the water receiving tray in time, otherwise the accumulation of condensed water will cause bacteria to multiply in large numbers and pollute the air; it will also affect the operation of electrical equipment. At present, most air conditioning systems have built-in drainage pumps, which are used to discharge the condensed water collected in the water receiving tray. However, the control logic of the drainage pump in the related technology is single. When the condensed water in the container for receiving the condensed water is full, the drainage pump is used to discharge the condensed water in the container. In some extreme weather conditions, such as rainy days, since the container on the outdoor side is not closed, it will continue to be full due to the collection of rainwater, resulting in frequent startup of the drainage pump, which is easy to affect the service life of the drainage system of the air conditioning system.

[0062] Based on this, the embodiment of the present invention provides a drainage control method, device, air conditioning drainage system and medium for an air conditioner, which determines the water content of the indoor water tank and the outdoor water tank by real-time detection of the indoor water level information of the indoor water tank and the outdoor water level information of the outdoor water tank, and then controls the indoor drainage pump and the outdoor drainage pump, and uses the outdoor drainage pump to pump the water in the outdoor water tank to the indoor water tank, or uses the indoor drainage pump to drain the water in the indoor water tank to the outdoors. Therefore, in extreme weather conditions, such as rainy days, the outdoor water tank will continue to trigger a water level warning and continue to be in a state of needing drainage. The rainwater in the outdoor water tank is pumped to the indoor water tank by the continuously operating outdoor drainage pump to lower the water level of the outdoor water tank, thereby causing the water level of the indoor water tank to gradually rise, changing the indoor water level information, and then it can be determined whether it is necessary to enter the drainage protection state, that is, to determine whether it is in extreme weather conditions, through the indoor water level information and the outdoor water level information. When in the drainage protection state, the outdoor drainage pump is controlled to stop running within the preset protection time, thereby stopping the detection of outdoor water level information and stopping the outdoor water tank from supplying water to the indoor water tank, improving the control logic of the indoor drainage pump and the indoor drainage pump, avoiding frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage, and increasing the service life of the air conditioner's drainage system.

[0063] The embodiments of the present invention are further described below in conjunction with the accompanying drawings.

[0064] Reference Figure 1 , a schematic structural diagram of an air conditioner provided in an embodiment of the first aspect of the present invention.

[0065] It is understandable that for an air conditioner with both cooling and heating functions, in the cooling mode, when the temperature of the surface of the indoor heat exchanger 140 is lower than the air dew point temperature, water vapor in the air will condense on the surface of the indoor heat exchanger 140 to form condensed water; correspondingly, in the heating mode, the surface of the outdoor heat exchanger 240 is prone to condense to form condensed water. Therefore, the air conditioner is respectively provided with an indoor drainage system and an outdoor drainage system. The indoor drainage system is used to discharge the condensed water generated on the surface of the indoor heat exchanger 140, and the outdoor drainage system is used to discharge the condensed water generated on the surface of the outdoor heat exchanger 240, thereby avoiding the accumulation of condensed water and causing water leakage in the air conditioner. The indoor drainage system includes an indoor water tank 110, an indoor water level detection device 120, an indoor drainage water pump 130, and an outdoor spray nozzle 160. The indoor water tank 110 is located below the indoor heat exchanger 140, so that it can hold the condensed water generated by the condensation on the surface of the indoor heat exchanger 140. The indoor water level detection device 120 and the indoor drainage water pump 130 are both located in the indoor water tank 110. The indoor water level detection device 120 can detect the indoor water level information of the indoor water tank 110. The water level of the indoor water tank 110 can be determined by the indoor water level information, so as to determine the urgency of the indoor water tank 110 to be drained. The indoor drainage water pump 130 is connected to the outdoor spray nozzle 160 through the indoor drainage pipe, so that the indoor drainage water pump 130 can pump the water in the indoor water tank 110 to the outdoor spray nozzle 160, and discharge it to the outdoors through the outdoor spray nozzle 160. The outdoor drainage system includes an outdoor water tank 210, an outdoor drainage water pump 230 and an outdoor water level detection device 220. The outdoor water tank 210 is located below the outdoor heat exchanger 240 and is used to receive condensed water formed on the surface of the outdoor heat exchanger 240. The outdoor water level detection device 220 and the outdoor drainage water pump 230 are located in the outdoor water tank 210. The outdoor water level detection device 220 can detect the outdoor water level information of the outdoor water tank 210, and the outdoor drainage water pump 230 is connected to the indoor water tank 110 through the outdoor drainage pipe, so that the outdoor drainage water pump 230 can pump the water in the outdoor water tank 210 to the indoor water tank 110.

[0066] Reference Figure 2 , Figure 21 shows a schematic diagram of the structure of an air conditioner provided by another embodiment of the present invention. It is understandable that the indoor drainage system further includes an indoor humidification water pump 170 and an indoor nozzle, wherein the indoor humidification water pump 170 is located in the indoor water tank 110, the indoor nozzle is located on one side of the indoor heat exchanger 140, and the indoor humidification water pump 170 is connected to the indoor nozzle, so that the indoor humidification water pump 170 can transport the water in the indoor water tank 110 to the indoor nozzle, spray humidification to the indoor heat exchanger 140, and increase the air humidity near the indoor heat exchanger 140, so that the indoor fan 150 blows high-humidity air into the room to adjust the indoor humidity.

[0067] It should be noted that the indoor drainage water pump 130 and the outdoor drainage water pump 230 may be the same or different, and both the indoor drainage water pump 130 and the outdoor drainage water pump 230 may be provided with a filter component, and the discharge of condensed water in the outdoor water tank 210 needs to undergo double filtration to prevent foreign matter from entering the outdoor water tank 210 and clogging the outdoor spray nozzle 160; in addition, the outdoor drainage water pump 230 may not be provided with a filter component, and the indoor drainage water pump 130 may be provided with a filter component, so that the indoor drainage water pump 130 can be used for filtering, and the outdoor drainage water pump 230 can reduce the flow limiting effect caused by the filter component and improve the transportation efficiency.

[0068] It can be understood by those skilled in the art that Figure 1 or Figure 2 The structure of the air conditioner shown in the figure does not constitute a limitation on the embodiments of the present invention, and may include more or less components than those shown in the figure, or combine certain components, or arrange the components differently.

[0069] Based on the above air conditioner, various embodiments of the drainage control method of the first aspect of the present invention are proposed.

[0070] Reference Figure 3 , Figure 3 is a flow chart of a drainage control method for an air conditioner provided in an embodiment of the present invention. The drainage control method for an air conditioner can be applied to Figure 1 or Figure 2 The air conditioner shown in the figure, the drainage control method includes but is not limited to step S110, step S120 and step S130:

[0071] Step S110, obtaining indoor water level information of the indoor water tank and outdoor water level information of the outdoor water tank;

[0072] Step S120, judging whether to control the outdoor drainage system to enter a drainage protection state according to the indoor water level information and the outdoor water level information;

[0073] Step S130: When the outdoor drainage system is in the drainage protection state, the outdoor drainage water pump is controlled to be turned off within a preset protection time.

[0074] It is understandable that by real-time detection of the indoor water level information of the indoor water tank and the outdoor water level information of the outdoor water tank, the water content of the indoor water tank and the outdoor water tank can be determined, and then the indoor drainage pump and the outdoor drainage pump can be controlled, and the water in the outdoor water tank can be pumped to the indoor water tank by the outdoor drainage pump, or the water in the indoor water tank can be discharged to the outside by the indoor drainage pump. Since the outdoor water tank is located below the outdoor heat exchanger and can be connected to the outside, rainwater will enter the outdoor water tank in rainy days, causing the water level in the outdoor water tank to rise rapidly, and the outdoor water tank will continue to be in a high water level state, which will cause the outdoor drainage pump to start and run frequently, which is easy to damage the drainage system. Therefore, in extreme weather conditions, such as rainy days, the outdoor water tank will continue to trigger a water level warning and continue to be in a state of needing to be drained. The rainwater in the outdoor water tank is pumped to the indoor water tank through the continuously operating outdoor drainage pump to lower the water level of the outdoor water tank, thereby causing the water level of the indoor water tank to gradually rise, changing the indoor water level information, and then the indoor water level information and the outdoor water level information can be used to determine whether it is necessary to enter the drainage protection state, that is, to determine whether it is in extreme weather conditions. When in the drainage protection state, the outdoor drainage system, that is, the outdoor drainage pump and the outdoor water level detection device, are controlled to stop running within the preset protection time, thereby stopping the detection of the outdoor water level information and stopping the outdoor water tank from delivering water to the indoor water tank, improving the control logic of the indoor drainage pump and the indoor drainage pump, avoiding frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage, and increasing the service life of the drainage system of the air conditioner.

[0075] It should be noted that the indoor water level detection device and the outdoor water level detection device can be water level meters, so that the indoor water level detection device can be used to detect the real-time indoor water level height of the indoor water tank, and the indoor water level information can be the height value of the indoor water level. Correspondingly, the outdoor water level detection device can be used to detect the real-time outdoor water level height of the outdoor water tank, and the outdoor water level information can be the height value of the indoor water level.

[0076] It should be noted that the indoor water level detection device and the outdoor water level detection device can be water level switches, that is, liquid level sensors. Therefore, the indoor water level detection device can include multiple liquid level switches. Specifically, the indoor water level detection device can include a first liquid level switch located at a first preset water level of the indoor water tank, and a second liquid level switch located at a second preset water level of the indoor water tank, wherein the first preset water level is lower than the second preset water level, so that the indoor water level information of the indoor water tank can be obtained by obtaining the triggering state of each liquid level switch in the indoor water level detection device. For example, when the first liquid level switch is triggered and the second liquid level switch is not triggered, the indoor water level information that can be obtained is that the indoor water level is higher than the first preset water level and lower than the second preset water level, that is, the indoor water level is a low water level; when both the first liquid level switch and the second liquid level switch are triggered, the indoor water level information that can be obtained is that the indoor water level is higher than the second preset height, that is, the indoor water level is a high water level; when both the first liquid level switch and the second liquid level switch are not triggered, the indoor water level information that can be obtained is that the indoor water level is lower than the first preset height, that is, the indoor water level is a safe water level.

[0077] Correspondingly, the outdoor water level detection device may also include multiple liquid level switches. Specifically, the outdoor water level detection device may include a third liquid level switch located at a third preset water level of the outdoor water tank, and a fourth liquid level switch located at a fourth preset water level of the outdoor water tank, wherein the fourth preset water level is lower than the third preset water level, so that the outdoor water level information of the outdoor water tank can be obtained by acquiring the triggering state of each liquid level switch in the outdoor water level detection device. For example, when the fourth liquid level switch is triggered and the third liquid level switch is not triggered, the outdoor water level information that can be obtained is that the outdoor water level is higher than the fourth preset water level and lower than the third preset water level, that is, the outdoor water level is a low water level; when the fourth liquid level switch and the third liquid level switch are both triggered, the outdoor water level information that can be obtained is that the outdoor water level is higher than the third preset height, that is, the outdoor water level is a high water level; when the fourth liquid level switch and the third liquid level switch are both not triggered, the outdoor water level information that can be obtained is that the outdoor water level is lower than the fourth preset height, that is, the outdoor water level is a safe water level.

[0078] Reference Figure 4 The drainage control method provided by the embodiment of the present invention is Figure 3 In the step S120 shown, step S120 includes but is not limited to step S210:

[0079] Step S210, when the indoor water level information shows that the indoor water level is higher than the first preset water level and lower than the second preset water level, and the outdoor water level information shows that the outdoor water level is higher than the third preset water level within the preset historical detection time, the indoor drainage pump is controlled to operate and the outdoor drainage system is controlled to enter the drainage protection state.

[0080] It is understandable that when the indoor water level information is that the indoor water level is higher than the first preset water level and the second preset water level, it means that the indoor water level is at a low water level, and the indoor drainage process needs to be executed, that is, the water in the indoor water tank is discharged through the indoor drainage pump. During the preset historical detection time, the outdoor water level information is that the outdoor water level is higher than the third preset water level, indicating that the outdoor water level is at a high water level. Since the outdoor water level information is higher than the fourth preset water level, the outdoor drainage process will be executed to discharge the water in the outdoor water tank to the indoor water tank. Therefore, if the outdoor drainage process is executed because the outdoor water level is higher than the third preset water level, causing the indoor water level to rise above the first preset water level, it can be considered that the outdoor water tank will continue to receive rainwater under extreme weather conditions, causing the outdoor water tank to maintain the outdoor water level above the third preset water level for a long time, so that the outdoor drainage pump can be controlled to enter the drainage protection state, so as to avoid the outdoor drainage pump from continuously discharging the water in the outdoor water tank to the indoor water tank in order to lower the outdoor water level of the outdoor water tank, thereby causing the indoor drainage pump to be frequently started to discharge the water transported by the outdoor water tank in the indoor water tank. Therefore, when the indoor water level is low and the outdoor water level is high within the preset historical detection time, the indoor drainage pump can be controlled to drain the water in the indoor water tank, and the outdoor drainage system can be controlled to enter the drainage protection state, that is, the outdoor drainage pump is controlled to stop running within the preset protection time to avoid continuous delivery of rainwater to the indoor water tank, improve the control logic of the indoor drainage pump and the indoor drainage pump, avoid frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage, and increase the service life of the air conditioner's drainage system.

[0081] Reference Figure 5 The drainage control method provided by the embodiment of the present invention is Figure 4 In the step S210 shown, step S210 includes but is not limited to step S211:

[0082] Step S211, when the indoor water level information shows that the indoor water level is lower than the first preset water level, and the outdoor water level information shows that the outdoor water level is higher than the third preset water level, the outdoor drainage pump is controlled to operate until the indoor water level information shows that the indoor water level is higher than the first preset water level and lower than the second preset water level, the indoor drainage pump is controlled to operate and the outdoor drainage pump is controlled to enter the drainage protection state.

[0083] It is understandable that when the indoor water level information is that the indoor water level is lower than the first preset water level, that is, the indoor water level is a safe water level, it can be considered that there is no need to drain the indoor water tank. Since the outdoor water level information is that the outdoor water level is higher than the third preset water level, that is, it can be considered that the outdoor water tank needs to be drained, the outdoor drainage pump can be controlled to operate and the water in the outdoor water tank can be transported to the indoor water tank. Since the water in the outdoor water tank needs to pass through the indoor water tank before being discharged, and the indoor water tank is located in the indoor environment, if the water in the indoor water tank overflows, it will cause leakage, which is easy to cause indoor property loss; and the outdoor water tank is located in the outdoor environment. In extreme weather, the impact of the water overflow in the outdoor water tank is small. Therefore, the execution of the outdoor drainage process needs to meet the prerequisite that the indoor water level of the indoor water tank is a safe water level, so as to avoid the indoor drainage process and the outdoor drainage process being executed at the same time, which will cause the water in the indoor water tank to overflow. At the same time, in the process of executing the outdoor drainage process, when the indoor water level exceeds the first preset water level, it is necessary to execute the indoor drainage process first and stop the execution of the outdoor drainage process. Since the outdoor water level is higher than the third preset water level before executing the outdoor drainage process, that is, before running the outdoor drainage pump, and the indoor water level is higher than the first preset water level due to the discharge of water in the outdoor water tank, it can be considered that the outdoor water tank will continue to collect rainwater under extreme weather conditions, causing the outdoor water level of the outdoor water tank to remain above the third preset water level for a long time. The outdoor drainage pump can be controlled to enter the drainage protection state, that is, the outdoor drainage pump is controlled to stop running within the preset protection time to avoid continuous delivery of rainwater to the indoor water tank, and the indoor drainage pump is controlled to run to drain the water from the indoor water tank in time. By improving the control logic of the indoor drainage pump and the indoor drainage pump, frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage can be avoided, thereby improving the service life of the air conditioner's drainage system.

[0084] Reference Figure 6 The drainage control method provided by the embodiment of the present invention is Figure 3 In the step S120 shown, step S120 includes but is not limited to step S310:

[0085] Step S310, when the indoor water level information is that the indoor water level is higher than the first preset water level and lower than the second preset water level, and the outdoor water level information is that the outdoor water level is lower than the third preset water level within the preset historical detection time, the indoor drainage pump is controlled to operate, and the outdoor drainage system is controlled not to enter the drainage protection state and the outdoor drainage pump is controlled to shut down.

[0086] It is understandable that when the indoor water level information shows that the indoor water level is higher than the first preset water level and lower than the second preset water level, the indoor water level can be considered to be a low water level, and the indoor drainage process needs to be executed to drain the water in the indoor water tank to the outside, that is, it is necessary to control the indoor drainage pump to drain the water in the indoor water tank. At the same time, since the outdoor water level information shows that the outdoor water level is lower than the third preset water level within the preset historical detection time, that is, the outdoor water level is not a high water level, it can be considered that the current state is normal drainage, and it is not in extreme weather conditions, so there is no need to control the outdoor drainage system to enter the drainage protection state. However, in order to avoid the outdoor drainage pump and the indoor drainage pump running at the same time, causing the indoor water tank to overflow, it is necessary to control the outdoor drainage pump to stop, and only run the indoor drainage pump, that is, maintain the priority of the indoor drainage process higher than the priority of the outdoor drainage process, which helps to protect the indoor drainage system and extend the service life of the indoor protection system.

[0087] Reference Figure 7 The drainage control method provided by the embodiment of the present invention is Figure 3 In the drainage control method shown, the drainage control method further includes but is not limited to step S140:

[0088] Step S140: When a forced drainage signal is received, the outdoor drainage pump is controlled to operate.

[0089] It is understandable that the forced drainage signal can be generated when the air conditioner receives a shutdown signal, wherein the forced drainage signal can be a shutdown signal of the air conditioner; the forced drainage signal can also be generated when the air conditioner enters the defrost mode, wherein the forced drainage signal can be a defrost signal of the air conditioner. After the air conditioner has been running for a period of time, condensed water will be generated on the surface of the outdoor heat exchanger. To avoid the long-term accumulation of condensed water in the outdoor water tank and to avoid the accumulated condensed water from mixing with foreign matter from corroding and damaging the outdoor water tank, the forced drainage signal can be used to drive the outdoor drainage pump to drain the water in the outdoor water tank to the indoor water tank. When the air conditioner enters the defrost mode to melt the frost layer on the surface of the outdoor heat exchanger, a large amount of defrost water will be generated. In order to prevent the water in the outdoor water tank from freezing to form a frost layer in the outdoor low temperature environment and blocking the drain port or the outdoor drainage pump, a forced drainage pump can be used to drive the outdoor drainage pump to drain the water in the outdoor water tank to the indoor water pump. Therefore, the forced drainage signal can be used to protect the outdoor drainage system and extend the service life of the outdoor drainage system. It should be noted that after receiving the forced drainage signal, the indoor drainage pump can be controlled to run first, and then the outdoor drainage pump can be controlled to run.

[0090] Reference Figure 8 The drainage control method provided by the embodiment of the present invention is Figure 3 In the step S120 shown, step S120 also includes but is not limited to step S410:

[0091] Step S410, when the indoor water level information shows that the indoor water level is lower than the first preset water level, and the outdoor water level information shows that the outdoor water level is lower than the third preset water level and higher than the fourth preset water level, the outdoor drainage system is controlled not to enter the drainage protection state and the outdoor drainage pump is controlled to operate.

[0092] It is understandable that when the indoor water level information indicates that the indoor water level is lower than the first preset water level, it means that the indoor water level is a safe water level and there is no need to drain the indoor water tank. When the outdoor water level information indicates that the outdoor water level is higher than the fourth preset water level and lower than the third preset water level, it means that the outdoor water level is a low water level and, excluding the current extreme weather conditions, there is no need to enter the drainage protection state, but the outdoor water tank needs to be drained. Therefore, under the premise that there is no need to execute the indoor drainage process, the outdoor drainage process can be executed, that is, the outdoor drainage pump can be controlled to run, so as to avoid the indoor water tank overflowing and damaging the electronic components on the indoor side of the air conditioner during the execution of the outdoor drainage process.

[0093] Reference Fig. 9 The drainage control method provided by the embodiment of the present invention is Figure 7 In step S140 shown in FIG. Figure 8 In step S410, the process of controlling the operation of the indoor drainage pump includes but is not limited to step S510:

[0094] Step S510: When the indoor water level information indicates that the indoor water level is higher than the first preset water level and lower than the second preset water level, the operation of the outdoor drainage pump is stopped, and the operation of the indoor drainage pump is controlled.

[0095] It is understandable that, due to receiving a forced drainage signal or the outdoor water level being higher than the fourth preset water level, the outdoor drainage process needs to be executed, and the execution priority of the outdoor drainage process is lower than the execution priority of the indoor drainage process. Therefore, the outdoor drainage process can be executed without executing the indoor drainage process. In the process of executing the outdoor process, that is, in the process of the operation of the outdoor drainage water pump, the water in the outdoor water tank will be transported to the indoor water tank, so that the indoor water level of the indoor water tank rises until the indoor water level exceeds the first preset water level, then the outdoor drainage process is terminated and the indoor drainage process is executed first. Equivalent to, in the process of the operation of the outdoor drainage water pump, when the indoor water level is higher than the first preset water level and lower than the second preset water level, it is necessary to terminate the operation of the outdoor drainage water pump, stop transporting the water from the outdoor water tank to the indoor water tank, and at the same time, it is necessary to control the operation of the indoor drainage water pump to drain the water in the indoor water tank in time. By setting the execution priority of the outdoor drainage process and the indoor drainage process, it is possible to prevent the indoor water tank from overflowing and damaging the electronic components on the indoor side of the air conditioner, thereby increasing the service life of the air conditioner.

[0096] Reference Fig.10The drainage control method provided by the embodiment of the present invention is Fig. 9 After step S510, the drainage control method includes but is not limited to step S610:

[0097] Step S610, when the operation time of the indoor drainage water pump reaches the preset indoor drainage time, or the operation times of the indoor drainage water pump reaches the preset indoor drainage times, the indoor drainage water pump is controlled to stop, and the operation of the outdoor drainage water pump is restored.

[0098] It is understandable that the indoor drainage process may refer to the indoor drainage pump running for a preset indoor drainage time, or the indoor drainage pump running for a preset number of indoor drainage times, or the indoor drainage pump running continuously until the indoor water level is lower than the first preset water level, wherein the indoor drainage pump running may refer to the indoor drainage pump running continuously for a first preset time and then stopping, and the next indoor drainage pump running after a second preset time interval, for example, the indoor drainage pump running continuously for 50 seconds and then stopping for 10 seconds is recorded as one operation of the indoor drainage pump, thereby preventing foreign matter from clogging the indoor drainage pump. Therefore, the indoor drainage pump can be controlled to stop after the indoor drainage process is completed, that is, after the running time of the indoor drainage pump reaches the preset indoor drainage time, or the running number of the indoor drainage pump reaches the preset indoor drainage number, the indoor drainage pump can be controlled to stop. Since the execution priority of the indoor drainage process is higher than that of the outdoor drainage process, when the indoor water level information is detected during the execution of the outdoor drainage process, the execution of the outdoor drainage process will be terminated and the indoor drainage process will be executed first. Therefore, after the execution of the indoor drainage process with a higher priority is completed, the execution of the outdoor drainage process can be resumed to avoid long-term accumulation of water in the outdoor water tank or overflow of water.

[0099] Reference Fig.11 The drainage control method provided by the embodiment of the present invention is Figure 3 In the drainage control method shown, the drainage control method further includes but is not limited to step S710:

[0100] Step S710, when the indoor water level information shows that the indoor water level is lower than the first preset water level, the outdoor water level information shows that the outdoor water level is lower than the fourth preset water level, and the preset humidity is higher than the ambient humidity of the environment in which the indoor heat exchanger is located, the outdoor drainage system is controlled not to enter the drainage protection state, and the indoor humidification water pump and the air conditioner fan are controlled to operate.

[0101] It can be understood that when the indoor water level information is that the indoor water level is lower than the first preset water level, it means that the indoor water level is a safe water level and there is no need to drain the indoor water tank; when the outdoor water level information is that the outdoor water level is lower than the fourth preset water level, it means that the outdoor water level is a safe water level and there is no need to drain the outdoor water tank. When both the indoor water level and the outdoor water level are safe water levels, it means that the current weather is not extreme and there is no need to control the outdoor drainage system to enter the drainage protection state. In addition, the air conditioner also has an indoor humidification function. When the preset humidity is higher than the ambient humidity of the indoor heat exchanger and the indoor drainage process and the outdoor drainage process are not executed, the indoor humidification water pump can be controlled to spray the water in the indoor water tank to the indoor heat exchanger to increase the humidity of the air around the indoor heat exchanger, and the air conditioner fan can be operated at the same time to blow high-humidity air into the room to increase the air humidity. Therefore, using the water in the indoor water tank for indoor humidification can realize the reuse of indoor and outdoor condensed water and improve resource utilization. Since the drainage volume per unit time of the indoor humidification pump is lower than the drainage volume per unit time of the indoor drainage pump, setting the execution priority of the indoor drainage process higher than that of the indoor humidification process can avoid overflow of the indoor water tank; in addition, in order to avoid affecting the accuracy of the drainage protection status judgment, the execution priority of the outdoor drainage process can be set higher than that of the indoor humidification process, that is, the execution priority of the indoor drainage process is the highest, followed by the outdoor drainage process, and finally the indoor humidification process.

[0102] It should be noted that only one of the indoor humidification water pump, indoor drainage water pump and outdoor drainage water pump is operated at the same time.

[0103] Reference Fig.12 The drainage control method provided by the embodiment of the present invention is Figure 3 In the drainage control method shown, the drainage control method further includes but is not limited to step S810:

[0104] Step S810: When the outdoor drainage system meets the outdoor abnormal conditions, an outdoor drainage system fault reminder is issued, and the outdoor drainage water pump is controlled to shut down.

[0105] Among them, the outdoor abnormal conditions include one of the following situations: the outdoor water level information is that the duration of the outdoor water level being higher than the fourth preset water level reaches the first outdoor abnormal duration; the continuous operation time of the outdoor drainage water pump reaches the second outdoor abnormal duration; the number of continuous operations of the outdoor drainage water pump reaches the first outdoor abnormal number of times; after the outdoor drainage water pump runs for the third outdoor abnormal time, the outdoor water level information is that the outdoor water level is higher than the third preset water level.

[0106] It is understandable that during the operation of the outdoor drainage pump, if any outdoor abnormal condition is met, it can be considered that the outdoor drainage system is abnormal, such as the outdoor drainage pump is blocked. In order to avoid the damage to the outdoor drainage system caused by the continued operation of the outdoor drainage pump, it is necessary to stop the outdoor drainage pump in time and issue an outdoor drainage system fault reminder to remind the user to repair the outdoor drainage system in time. It should be noted that in the case of an outdoor drainage system failure, the indoor drainage process can be executed normally to avoid overflowing of the indoor sink.

[0107] Reference Fig.13 The drainage control method provided by the embodiment of the present invention is Figure 3 In the drainage control method shown, the drainage control method further includes but is not limited to step S910:

[0108] Step S910: When the indoor drainage system meets the indoor abnormal conditions, an indoor drainage system fault reminder is issued, and the indoor drainage pump and the outdoor drainage pump are controlled to stop.

[0109] Among them, the indoor abnormal conditions include one of the following situations: the indoor water level information is that the duration of the indoor water level being higher than the first preset water level reaches the first indoor abnormal duration; the continuous operation time of the indoor drainage water pump reaches the second indoor abnormal duration; the number of times the indoor drainage water pump continues to run reaches the first indoor abnormal number; the indoor water level information is that the indoor water level is higher than the second preset water level.

[0110] It is understandable that during the operation of the indoor drainage pump, if any indoor abnormal condition is met, it can be considered that the indoor drainage system is abnormal. For example, the indoor drainage pump is blocked. In order to avoid the damage to the indoor drainage system caused by continuous execution of the indoor drainage pump, and to avoid the indoor water tank overflowing due to continuous operation of the outdoor drainage pump, it is necessary to stop the outdoor drainage pump and the indoor drainage pump in time, and issue an indoor drainage system fault reminder to remind the user to inspect the indoor drainage system in time.

[0111] The drainage control method of the air conditioner provided in the embodiment of the present application is described in detail below with specific examples.

[0112] Reference Fig.14 As shown, Fig.14 The following is an overall flow chart of the drainage control method of an air conditioner provided as a specific example. Fig.14 In the present invention, the drainage control method of the air conditioner may include but is not limited to steps S1401 to S1415.

[0113] Step S1401: Determine whether the indoor water level is higher than a first preset water level, if so, execute step S1402, if not, execute step S1406.

[0114] Step S1402: Determine whether the indoor water level is higher than a second preset water level, if so, execute step S1405, if not, execute step S1403.

[0115] Step S1403: running the indoor drainage water pump for the first indoor drainage time, or running the indoor drainage water pump for the first indoor drainage times, and shutting down the remaining water pumps.

[0116] Step S1404: Determine whether the indoor drainage water pump runs continuously for the second indoor drainage time, or whether it runs for the second indoor drainage times. If so, execute step S1405; if not, execute step S1401.

[0117] In this step, the first indoor drainage time is shorter than the second indoor drainage time, and the second indoor drainage times are longer than the first indoor drainage times.

[0118] Step S1405: Control the indoor drainage system and the outdoor drainage system to shut down, and execute step S1418.

[0119] Step S1406: Determine whether the outdoor water level is higher than the fourth preset water level, if so, execute step S1407, if not, execute step S1413.

[0120] Step S1407: running the outdoor drainage water pump for the first outdoor drainage time, or running the outdoor drainage water pump for the first outdoor drainage times, and shutting down the remaining water pumps.

[0121] Step S1408: Determine whether the indoor water level information is higher than the first preset water level during the operation of the outdoor drainage pump. If so, execute step S1409; if not, execute step S1411.

[0122] Step S1409: Determine whether the outdoor water level is higher than the third preset water level within the preset historical detection time period. If so, execute step S1410; if not, execute step S1402.

[0123] Step S1410: Control the outdoor drainage system to enter the drainage protection state and execute step S1402.

[0124] Step S1411: Determine whether the outdoor drainage system meets the outdoor abnormal conditions. If so, execute step S1412; if not, execute step S1401.

[0125] Step S1412: Control the outdoor drainage pump to stop and execute step S1415.

[0126] Step S1413: Determine whether the preset humidity is greater than the ambient humidity, if so, execute step S1414, if not, execute step S1415.

[0127] Step S1414: Run the indoor humidification water pump and execute step S1401.

[0128] Step S1415: End step.

[0129] The drainage control method provided by the embodiment of the present invention determines the water content of the indoor water tank and the outdoor water tank by real-time detection of the indoor water level information of the indoor water tank and the outdoor water level information of the outdoor water tank, and then controls the indoor drainage pump and the outdoor drainage pump, and uses the outdoor drainage pump to pump the water in the outdoor water tank to the indoor water tank, or uses the indoor drainage pump to discharge the water in the indoor water tank to the outside. Therefore, in extreme weather conditions, such as rainy days, the outdoor water tank will continue to trigger a water level warning and continue to be in a state of needing drainage. The rainwater in the outdoor water tank is pumped to the indoor water tank by the continuously operating outdoor drainage pump to lower the water level of the outdoor water tank, thereby causing the water level of the indoor water tank to gradually rise, changing the indoor water level information, and then it can be judged whether it is necessary to enter the drainage protection state, that is, to judge whether it is in extreme weather conditions, through the indoor water level information and the outdoor water level information. When in the drainage protection state, the outdoor drainage pump is controlled to stop running within the preset protection time, thereby stopping the detection of outdoor water level information and stopping the outdoor water tank from supplying water to the indoor water tank, improving the control logic of the indoor drainage pump and the indoor drainage pump, avoiding frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage, and increasing the service life of the air conditioner's drainage system.

[0130] Second, refer to Fig.15 The embodiment of the present invention provides an operation control device 1500, including a memory 1520, a processor 1510, and a computer program stored in the memory 1520 and executable on the processor 1510. The processor 1510 executes the program to implement the drainage control method of the first embodiment, for example, Figure 3 or performing steps S110 to S130 of the method Figure 4 In step S210 of the method, or executing Figure 5 In step S211 of the method, or executing Figure 6 In step S310 of the method, or executing Figure 7 In step S140 of the method, or executing Figure 8 In step S410 of the method, or executing Fig. 9 In step S510 of the method, or executing Fig.10 In step S610 of the method, or executing Fig.11 In step S710 of the method, or executing Fig.12 In step S810 of the method, or executing Fig.13 In step S910 of the method, or executing Fig.14 Method steps S1401 to S1415.

[0131] According to the operation control device provided by the embodiment of the present invention, the indoor water level information of the indoor water tank and the outdoor water level information of the outdoor water tank are detected in real time to determine the water content of the indoor water tank and the outdoor water tank, and then the indoor drainage pump and the outdoor drainage pump are controlled to pump the water in the outdoor water tank to the indoor water tank by the outdoor drainage pump, or to discharge the water in the indoor water tank to the outside by the indoor drainage pump. Therefore, in extreme weather conditions, such as rainy days, the outdoor water tank will continue to trigger a water level warning and continue to be in a state of needing drainage. The rainwater in the outdoor water tank is pumped to the indoor water tank by the continuously operating outdoor drainage pump to lower the water level of the outdoor water tank, thereby causing the water level of the indoor water tank to gradually rise, changing the indoor water level information, and then it can be determined whether it is necessary to enter the drainage protection state, that is, to determine whether it is in extreme weather conditions, through the indoor water level information and the outdoor water level information. When in the drainage protection state, the outdoor drainage pump is controlled to stop running within the preset protection time, thereby stopping the detection of outdoor water level information and stopping the outdoor water tank from supplying water to the indoor water tank, improving the control logic of the indoor drainage pump and the indoor drainage pump, avoiding frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage, and increasing the service life of the air conditioner's drainage system.

[0132] In a third aspect, an embodiment of the present invention provides an air-conditioning drainage system, comprising an outdoor drainage system and an indoor drainage system, wherein the indoor drainage system comprises an indoor water tank located below an indoor heat exchanger and an indoor drainage water pump for draining water from the indoor water tank to the outdoors; the outdoor drainage system comprises an outdoor water tank located below an outdoor heat exchanger and an outdoor drainage water pump for draining water from the outdoor water tank to the indoor water tank.

[0133] It is understandable that the condensed water generated on the surface of the indoor heat exchanger is discharged by the indoor drainage system, and the condensed water generated on the surface of the outdoor heat exchanger is discharged by the outdoor drainage system, so as to avoid the accumulation of condensed water and cause the air conditioner to leak. The indoor drainage system includes an indoor water tank, an indoor water level detection device, an indoor drainage water pump, and an outdoor spray nozzle. The indoor water tank is located below the indoor heat exchanger, so that it can hold the condensed water generated by the condensation on the surface of the indoor heat exchanger. The indoor water level detection device and the indoor drainage water pump are both located in the indoor water tank. The indoor water level detection device can detect the indoor water level information of the indoor water tank. The water level of the indoor water tank can be determined by the indoor water level information, so as to determine the urgency of the indoor water tank to drain. The indoor drainage water pump is connected to the outdoor spray nozzle through the indoor drainage pipe, so that the indoor drainage water pump can pump the water in the indoor water tank to the outdoor spray nozzle, and discharge it to the outside by the outdoor spray nozzle. The outdoor drainage system includes an outdoor water tank, an outdoor drainage water pump and an outdoor water level detection device. The outdoor water tank is located below the outdoor heat exchanger and is used to collect condensed water formed on the surface of the outdoor heat exchanger. The outdoor water level detection device and the outdoor drainage water pump are located in the outdoor water tank. The outdoor water level detection device can detect the outdoor water level information of the outdoor water tank, and the outdoor drainage water pump is connected to the indoor water tank through the outdoor drainage pipe, so that the outdoor drainage water pump can pump the water in the outdoor water tank to the indoor water tank.

[0134] It can be understood that the air conditioning drainage system also includes an indoor humidification water pump and an indoor nozzle, wherein the indoor humidification water pump is located in the indoor water tank, the indoor nozzle is located on one side of the indoor heat exchanger, and the indoor humidification water pump is connected to the indoor nozzle, so that the indoor humidification water pump can transport water from the indoor water tank to the indoor nozzle, spray humidification on the indoor heat exchanger, increase the air humidity near the indoor heat exchanger, and thus the indoor fan blows high-humidity air into the room to adjust the indoor humidity.

[0135] It should be noted that the structural diagram of the outdoor drainage system and the indoor drainage system in the air conditioning drainage system can be referred to Figure 1 or Figure 2 A schematic diagram of the structure of an air conditioner is shown.

[0136] Therefore, the outdoor water level detection device in the outdoor water tank is used to determine whether the outdoor water tank needs to be drained, so that the water in the outdoor water tank can be transported to the indoor water tank through the outdoor drainage water pump, thereby changing the water level of the indoor water tank, and the indoor water level detection device of the indoor water tank is used to determine whether the indoor water tank needs to be drained. Starting the indoor drainage water pump can discharge the water originally stored in the indoor water tank and the water transported by the outdoor drainage water pump to the outdoors by spraying. Therefore, the outdoor drainage and indoor drainage can be controlled by the water level triggering state of the outdoor water level detection device and the indoor water level detection device, and the water level triggering sequence of the indoor water level detection device and the indoor water level detection device can be used to determine whether it is in extreme weather conditions, so as to determine whether it is necessary to enter the drainage protection state to stop the operation of the outdoor drainage water pump, thereby reducing the frequent startup of the drainage pump and improving the service life of the drainage system of the air conditioner.

[0137] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the drainage control method of the first aspect embodiment, for example, to execute Figure 3 or performing steps S110 to S130 of the method Figure 4 In step S210 of the method, or executing Figure 5 In step S211 of the method, or executing Figure 6 In step S310 of the method, or executing Figure 7 In step S140 of the method, or executing Figure 8 In step S410 of the method, or executing Fig. 9 In step S510 of the method, or executing Fig.10 In step S610 of the method, or executing Fig.11 In step S710 of the method, or executing Fig.12 In step S810 of the method, or executing Fig.13 In step S910 of the method, or executing Fig.14 Method steps S1401 to S1415.

[0138] According to the computer-readable storage medium provided by the embodiment of the present invention, the water level of the indoor water tank and the outdoor water tank is detected in real time to determine the water level of the indoor water tank and the outdoor water tank, and then the indoor drainage pump and the outdoor drainage pump are controlled to pump the water in the outdoor water tank to the indoor water tank by the outdoor drainage pump, or to drain the water in the indoor water tank to the outside by the indoor drainage pump. Therefore, in extreme weather conditions, such as rainy days, the outdoor water tank will continue to trigger a water level warning and continue to be in a state of needing to be drained. The rainwater in the outdoor water tank is pumped to the indoor water tank by the continuously operating outdoor drainage pump to lower the water level of the outdoor water tank, thereby causing the water level of the indoor water tank to gradually rise, changing the indoor water level information, and then the indoor water level information and the outdoor water level information can be used to determine whether it is necessary to enter the drainage protection state, that is, to determine whether it is in extreme weather conditions. When in the drainage protection state, the outdoor drainage pump is controlled to stop running within the preset protection time, thereby stopping the detection of outdoor water level information and stopping the outdoor water tank from supplying water to the indoor water tank, improving the control logic of the indoor drainage pump and the indoor drainage pump, avoiding frequent triggering of the outdoor drainage pump and the indoor drainage pump for drainage, and increasing the service life of the air conditioner's drainage system.

[0139] It will be appreciated by those skilled in the art that all or some of the steps and systems in the disclosed methods above may be implemented as software, firmware, hardware and appropriate combinations thereof. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium or a non-transitory medium and a communication medium or a temporary medium. As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information such as computer-readable instructions, data structures, program modules or other data. Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disk DVD or other optical disk storage, magnetic cassettes, magnetic tapes, disk storage or other magnetic storage devices, or any other medium that may be used to store desired information and may be accessed by a computer. Furthermore, it is well known to those skilled in the art that communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0140] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A drainage control method for an air conditioner, characterized in that: The air conditioner includes an outdoor drainage system and an indoor drainage system, wherein the indoor drainage system includes an indoor water tank located below an indoor heat exchanger and an indoor drainage water pump for draining water from the indoor water tank to the outdoors; the outdoor drainage system includes an outdoor water tank located below an outdoor heat exchanger and an outdoor drainage water pump for draining water from the outdoor water tank to the indoor water tank; the drainage control method includes: Acquiring indoor water level information of the indoor water tank and outdoor water level information of the outdoor water tank; According to the indoor water level information and the outdoor water level information, determining whether to control the outdoor drainage system to enter a drainage protection state; When the outdoor drainage system is in the drainage protection state, the outdoor drainage water pump is controlled to be turned off within a preset protection time.

2. The drainage control method according to claim 1, characterized in that: The determining, according to the indoor water level information and the outdoor water level information, whether to control the outdoor drainage system to enter a drainage protection state comprises: When the indoor water level information shows that the indoor water level is higher than the first preset water level and lower than the second preset water level, and the outdoor water level information shows that the outdoor water level is higher than the third preset water level within the preset historical detection time, the indoor drainage pump is controlled to operate and the outdoor drainage system is controlled to enter the drainage protection state.

3. The drainage control method according to claim 2, characterized in that: When the indoor water level information indicates that the indoor water level is higher than the first preset water level and lower than the second preset water level, and the outdoor water level information indicates that the outdoor water level is higher than the third preset water level within the preset historical detection time, the indoor drainage pump is controlled to operate and the outdoor drainage system is controlled to enter the drainage protection state, including: When the indoor water level information shows that the indoor water level is lower than the first preset water level, and the outdoor water level information shows that the outdoor water level is higher than the third preset water level, the outdoor drainage water pump is controlled to operate until the indoor water level information shows that the indoor water level is higher than the first preset water level and lower than the second preset water level, the indoor drainage water pump is controlled to operate and the outdoor drainage water pump is controlled to enter the drainage protection state.

4. The drainage control method according to claim 1, characterized in that: The determining, according to the indoor water level information and the outdoor water level information, whether to control the outdoor drainage system to enter a drainage protection state comprises: When the indoor water level information shows that the indoor water level is higher than the first preset water level and lower than the second preset water level, and the outdoor water level information shows that the outdoor water level is lower than the third preset water level within the preset historical detection time, the indoor drainage pump is controlled to operate, and the outdoor drainage system is controlled not to enter the drainage protection state and the outdoor drainage pump is controlled to shut down.

5. The drainage control method according to claim 1, characterized in that: The drainage control method further comprises: When a forced drainage signal is received, the outdoor drainage pump is controlled to operate; The forced drainage signal is generated according to a shutdown signal for controlling the air conditioner to shut down, or the forced drainage signal is generated according to a defrost signal for controlling the air conditioner to execute a defrost mode.

6. The drainage control method according to claim 1, characterized in that: The determining, according to the indoor water level information and the outdoor water level information, whether to control the outdoor drainage system to enter a drainage protection state comprises: When the indoor water level information shows that the indoor water level is lower than the first preset water level, and the outdoor water level information shows that the outdoor water level is lower than the third preset water level and higher than the fourth preset water level, the outdoor drainage system is controlled not to enter the drainage protection state and the outdoor drainage water pump is controlled to operate.

7. The drainage control method according to claim 5 or 6, characterized in that: In the process of controlling the operation of the outdoor water pump, the drainage control method further includes: When the indoor water level information indicates that the indoor water level is higher than a first preset water level and lower than a second preset water level, the operation of the outdoor drainage water pump is stopped, and the operation of the indoor drainage water pump is controlled.

8. The drainage control method according to claim 7, characterized in that: The process of controlling the operation of the indoor drainage water pump includes: When the operation time of the indoor drainage water pump reaches the preset indoor drainage time, or the operation times of the indoor drainage water pump reaches the preset indoor drainage times, the indoor drainage water pump is controlled to stop, and the operation of the outdoor drainage water pump is restored.

9. The drainage control method according to claim 1, characterized in that: The indoor drainage system further includes an indoor humidification water pump located in the indoor water tank, and an indoor nozzle for spraying humidification to the indoor heat exchanger, and the indoor humidification water pump is connected to the indoor nozzle; judging whether to control the outdoor drainage system to enter the drainage protection state according to the indoor water level information and the outdoor water level information, includes: When the indoor water level information shows that the indoor water level is lower than the first preset water level, the outdoor water level information shows that the outdoor water level is lower than the fourth preset water level, and the preset humidity is higher than the ambient humidity of the environment in which the indoor heat exchanger is located, the outdoor drainage system is controlled not to enter the drainage protection state, and the indoor humidification water pump and the air conditioner fan are controlled to operate.

10. The drainage control method according to claim 3, 5, 6 or 8, characterized in that: In the process of controlling the operation of the outdoor drainage pump, the drainage control method further includes: When the outdoor drainage system meets outdoor abnormal conditions, an outdoor drainage fault reminder is issued, and the outdoor drainage water pump is controlled to stop; Among them, the outdoor abnormal condition includes one of the following situations: the outdoor water level information is that the duration of the outdoor water level being higher than the fourth preset water level reaches the first outdoor abnormal duration; the continuous operation time of the outdoor drainage water pump reaches the second outdoor abnormal duration; the number of continuous operations of the outdoor drainage water pump reaches the first outdoor abnormal number of times; after the outdoor drainage water pump runs for the third outdoor abnormal duration, the outdoor water level information is that the outdoor water level is higher than the third preset water level.

11. The drainage control method according to claim 2, 3, 4 or 7, characterized in that: In the process of controlling the operation of the indoor drainage water pump, the drainage control method further includes: When the indoor drainage system meets the indoor abnormal conditions, an indoor drainage fault reminder is issued, and the indoor drainage water pump and the outdoor drainage water pump are controlled to stop; Among them, the indoor abnormal condition includes one of the following situations: the indoor water level information is that the duration of the indoor water level being higher than the first preset water level reaches the first indoor abnormal duration; the continuous operation time of the indoor drainage water pump reaches the second indoor abnormal duration; the number of continuous operations of the indoor drainage water pump reaches the first indoor abnormal number; the indoor water level information is that the indoor water level is higher than the second preset water level.

12. An operation control device, characterized in that: The system comprises a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the drainage control method according to any one of claims 1 to 11.

13. An air conditioning drainage system, characterized in that: It includes an outdoor drainage system and an indoor drainage system. The indoor drainage system includes an indoor water tank located below the indoor heat exchanger and an indoor drainage water pump for draining water from the indoor water tank to the outdoors; the outdoor drainage system includes an outdoor water tank located below the outdoor heat exchanger and an outdoor drainage water pump for draining water from the outdoor water tank to the indoor water tank.

14. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to enable a computer to execute the drainage control method according to any one of claims 1 to 11.

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