Control method and device of ceiling drainage pump, electronic equipment and air conditioner

Abstract

The application belongs to the technical field of drainage pump control, and discloses a control method and device for a ceiling machine drainage pump, an electronic device and an air conditioner. The method is used for controlling the drainage pump of the ceiling machine. The drainage pump is a direct-current water pump and can operate at two different rotating speeds. The method comprises the following steps: in a normal operating state of the drainage pump, repeatedly driving the drainage pump to operate at a first rotating speed for a first predetermined time length, switching to operate at a second rotating speed for a second predetermined time length, and stopping the drainage pump until the drainage pump stops. The control method and device for the ceiling machine drainage pump, the electronic device and the air conditioner can ensure smooth drainage and achieve the purpose of energy saving.

Description

Technical Field

[0001] This invention relates to the field of drainage pump control technology, and more specifically, to a control method, device, electronic equipment, and air conditioner for a ceiling-mounted machine drainage pump. Background Technology

[0002] When a ceiling-mounted air conditioner is cooling, the condensate produced by the evaporator will accumulate in the condensate tray of the ceiling-mounted unit. In order to drain the condensate from the condensate tray in a timely manner, a drain pump is usually installed in the ceiling-mounted unit to forcefully drain the condensate.

[0003] In existing technologies, water level detection devices are typically used to monitor the water level in the receiving pan, thereby controlling the drainage pump. For example, when the water level detection device detects that the condensate in the receiving pan has reached a predetermined height, the drainage pump starts to drain the condensate. However, using water level detection devices increases the production costs for enterprises.

[0004] To address the aforementioned issues, existing technologies employ a method where the current passing through the drainage pump is collected in real-time after the pump starts operating and compared with a preset current. The pump's operating level is then determined based on the comparison result. This allows the drainage pump to automatically adjust its operating level according to different water levels in the receiving pan, eliminating the need for a water level detection device to monitor the water level and thus reducing production costs for enterprises. However, since the current change during drainage pump operation is relatively small, real-time current collection is prone to misjudgment, leading to poor drainage from the ceiling-mounted pump and water leakage.

[0005] Therefore, existing technologies need to be improved and developed. Summary of the Invention

[0006] The purpose of this invention is to provide a control method, device, electronic equipment, and air conditioner for a ceiling-mounted machine drainage pump, which achieves energy saving while ensuring smooth drainage.

[0007] In a first aspect, the present invention provides a control method for a ceiling-mounted air conditioner drain pump, used to control the drain pump of the ceiling-mounted air conditioner, wherein the drain pump is a DC water pump capable of operating at two different speeds, and the method includes the following steps:

[0008] Under normal operating conditions, the drainage pump is repeatedly driven to run at a first speed for a first predetermined time, then switched to a second speed for a second predetermined time, until the drainage pump stops.

[0009] The control method for the ceiling machine drain pump provided by the present invention controls the drain pump to repeatedly run at a first speed for a first predetermined time and then switch to a second speed for a second predetermined time. This ensures that the condensate in the water collection pan of the ceiling machine is drained, while also preventing the drain pump from always running at the first speed, thereby achieving the purpose of saving energy.

[0010] Optionally, the control method of the ceiling machine drainage pump further comprises a start-up operation control, and the start-up operation control comprises the following steps:

[0011] acquiring running state information of the drainage pump at the last shutdown time; wherein the running state information comprises rotation speed information of the drainage pump and duration information of maintaining the rotation speed information;

[0012] controlling a start-up operation state of the drainage pump according to the running state information of the drainage pump at the last shutdown time.

[0013] The application acquires the running state information of the drainage pump at the last shutdown time, and controls the start-up operation state of the drainage pump according to the running state information of the drainage pump at the last shutdown time, so as to avoid that when the drainage pump is running at the larger one of the first rotation speed and the second rotation speed, the condensed water in the ceiling machine water pan is already drained, and the drainage pump continues to run at the larger one of the first rotation speed and the second rotation speed to suck a large amount of air and generate noise, and to avoid that when the drainage pump is running at the smaller one of the first rotation speed and the second rotation speed, the condensed water in the ceiling machine water pan has reached a predetermined capacity, and the drainage pump continues to run at the smaller one of the first rotation speed and the second rotation speed to cause the condensed water in the ceiling machine water pan to exceed the predetermined capacity and cause water leakage, thereby affecting the user experience.

[0014] Optionally, the control method of the ceiling machine drainage pump further comprises a start-up operation control, and the start-up operation control comprises the following steps:

[0015] if the rotation speed information is the first rotation speed, and the duration of maintaining the first rotation speed is greater than a first preset time, then controlling the drainage pump to start up and run at the second rotation speed for a second predetermined time length; wherein the first preset time is less than or equal to the first predetermined time length;

[0016] if the rotation speed information is the second rotation speed, then controlling the drainage pump to start up and run at the second rotation speed for a second preset time; wherein the second preset time is a difference between the second predetermined time length and the duration of maintaining the second rotation speed at the last shutdown time.

[0017] Optionally, the control method of the ceiling machine drainage pump further comprises a shutdown operation control, and the shutdown operation control comprises the following steps:

[0018] acquiring running state information of the drainage pump at the shutdown time; wherein the running state information of the drainage pump at the shutdown time comprises rotation speed information of the drainage pump and duration information of maintaining the rotation speed information;

[0019] controlling the shutdown operation state of the drain pump according to the operation state information when the drain pump is stopped.

[0020] Optionally, in the control method of the drain pump of the ceiling machine, the step of controlling the shutdown operation state of the drain pump according to the operation state information when the drain pump is stopped comprises the following steps:

[0021] if the rotation speed information is the first rotation speed and the first rotation speed is greater than the second rotation speed, then the drain pump is controlled to continue to maintain the first rotation speed for a third preset time and then shut down; wherein the third preset time is the difference between the first predetermined time length and the duration for which the drain pump currently maintains the first rotation speed;

[0022] if the rotation speed information is the first rotation speed and the first rotation speed is less than the second rotation speed, then the drain pump is controlled to operate at the second rotation speed for a second predetermined time length and then shut down;

[0023] if the rotation speed information is the second rotation speed and the first rotation speed is greater than the second rotation speed, then the drain pump is controlled to operate at the first rotation speed for a first predetermined time length and then shut down;

[0024] if the rotation speed information is the second rotation speed and the first rotation speed is less than the second rotation speed, then the drain pump is controlled to continue to maintain the second rotation speed for a fourth preset time and then shut down; wherein the fourth preset time is the difference between the second predetermined time length and the duration for which the drain pump currently maintains the second rotation speed.

[0025] Optionally, in the control method of the drain pump of the ceiling machine, the control method further comprises a predetermined time length information adjustment, and the predetermined time length information adjustment comprises the following steps:

[0026] obtaining operation time information of the ceiling machine; wherein the operation time information is the operation time length after the ceiling machine is turned on;

[0027] re-determining the first predetermined time length or the second predetermined time length according to the operation time information of the ceiling machine.

[0028] Optionally, in the control method of the drain pump of the ceiling machine, the step of re-determining the first predetermined time length or the second predetermined time length according to the operation time information of the ceiling machine comprises the following steps:

[0029] selecting the first predetermined time length or the second predetermined time length corresponding to a preset time length interval according to the operation time length after the ceiling machine is turned on.

[0030] In a second aspect, the present application provides a control device for a ceiling machine drainage pump, which is used for controlling the drainage pump of the ceiling machine, the drainage pump is a direct current pump and can run at two different speeds, and the device comprises:

[0031] a control module, which is used for repeatedly driving the drainage pump to run at a first speed for a first predetermined time length and then switching to run at a second speed for a second predetermined time length until the drainage pump stops under a normal running state of the drainage pump.

[0032] The control device for the ceiling machine drainage pump provided by the present application can ensure the condensate water in the water pan of the ceiling machine to be drained away, and the drainage pump will not run at a single speed all the time, so that the energy can be saved.

[0033] In a third aspect, the present application provides an electronic device comprising a processor and a memory, wherein the memory stores computer readable instructions, and when the computer readable instructions are executed by the processor, the steps in the method provided in the first aspect are executed.

[0034] In a fourth aspect, the present application provides an air conditioner, which adopts the steps in the method provided in the first aspect to control the running of the drainage pump.

[0035] As can be seen from the above, the control method, device, electronic device and air conditioner provided by the present application can repeatedly drive the drainage pump to run at a first speed for a first predetermined time length and then switch to run at a second speed for a second predetermined time length until the drainage pump stops under a normal running state of the drainage pump, so that the condensate water in the water pan of the ceiling machine can be drained away, and the drainage pump will not run at a single speed all the time, so that the energy can be saved.

[0036] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application can be achieved and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 A flow chart of a control method for a ceiling machine drainage pump provided by an embodiment of the present application.

[0038] Figure 2 A structural schematic diagram of a control device for a ceiling machine drainage pump provided by an embodiment of the present application.

[0039] Figure 3 A structural schematic diagram of an electronic device provided by an embodiment of the present application. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0041] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this invention, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] When a ceiling-mounted air conditioner is cooling, condensate produced by the evaporator accumulates in the drip tray. To promptly drain this condensate, a drain pump is typically installed inside the unit. Existing technology uses real-time current sampling after the drain pump starts operating, comparing it to a preset current. The comparison result determines the pump's operating level, allowing it to automatically adjust based on the water level in the drip tray. This eliminates the need for a water level monitoring device, reducing production costs. However, because the current change during pump operation is relatively small, real-time current sampling is prone to misjudgments, leading to poor drainage and leaks. Therefore, this invention provides a control method, device, electronic equipment, and air conditioner for a ceiling-mounted air conditioner drain pump.

[0043] Firstly, please refer to Figure 1 , Figure 1 This is a flowchart of a control method for a ceiling-mounted air conditioner drain pump according to some embodiments of the present invention. This control method is used to control the drain pump of the ceiling-mounted air conditioner. The drain pump is a DC water pump capable of operating at two different speeds. The method includes the following steps:

[0044] S100: Under normal operating conditions, the drain pump is repeatedly driven to run at the first speed for a first predetermined time, then switched to the second speed for a second predetermined time, until the drain pump stops.

[0045] Wherein, when the first rotational speed is greater than the second rotational speed, the second predetermined duration is greater than the first predetermined duration; the first predetermined duration is the time required for the drain pump to drain a predetermined capacity of condensate in the ceiling machine's water collection pan when it is running at the first rotational speed, and the second predetermined duration is the time required for the condensate in the ceiling machine's water collection pan to accumulate back to the predetermined capacity after it has been drained.

[0046] Wherein, when the first speed is less than the second speed, the second predetermined time is less than the first predetermined time; the first predetermined time is the time it takes for the ceiling machine's water collection pan to accumulate a predetermined capacity of condensate, and the second predetermined time is the time it takes for the drain pump to drain the predetermined capacity of condensate from the ceiling machine's water collection pan when it runs at the second speed.

[0047] It should be noted that when the drain pump operates at the lower of the first and second speeds, it will not drain water. This is because, at the lower speed, the pump's head cannot be reached. In other words, when the drain pump operates at the lower speed, the condensate in the drip tray will gradually increase. For example, running the drain pump at the higher speed for 5 minutes can drain the predetermined amount of condensate from the ceiling-mounted air conditioner's drip tray. Switching the drain pump to the lower speed for 25 minutes allows the condensate in the drip tray to accumulate again to the predetermined capacity.

[0048] Because the speed at which the drain pump starts up again may be the same as the speed at which it stopped last time—for example, if the drain pump stopped at the higher of the first and second speeds, and then started up again at the higher of the first and second speeds, it's easy for the condensate in the ceiling-mounted air conditioner's drip tray to have already been drained when the pump stopped, and then continue running at the higher of the first and second speeds when it starts up again, causing a large amount of air to be drawn in and generating noise; or, if the drain pump stopped at the lower of the first and second speeds, and then started up again at the lower of the first and second speeds, it's easy for the condensate in the ceiling-mounted air conditioner's drip tray to have already reached the predetermined capacity when the pump stopped, and then continue running at the lower of the first and second speeds when it starts up again, causing the condensate in the drip tray to exceed the predetermined capacity, resulting in leakage.

[0049] Therefore, in some embodiments, a power-on operation control is included before step S100, and the power-on operation control includes the following steps:

[0050] S101: Obtain the operating status information of the drainage pump when it was last stopped;

[0051] S102: Control the start-up operation status of the drainage pump based on the operating status information when the drainage pump was last stopped.

[0052] In step S101, the operating status information includes the pump's rotational speed and the duration of maintaining that speed. Specifically, it determines whether the pump's speed at the last shutdown was a first or second rotational speed, and how long it operated at that speed. The operating status information can be stored in a memory, and the next time the pump is started, the operating status information from the last shutdown is retrieved by reading the records in the memory.

[0053] Step S102 includes the following steps: S1021, if the rotation speed information is a first rotation speed and the duration of maintaining the first rotation speed is greater than a first preset time, then control the drain pump to start at a second rotation speed and run for a second predetermined time; S1022, if the rotation speed information is a second rotation speed, then control the drain pump to start at a second rotation speed and run for a second preset time.

[0054] In step S1021, the first preset time is less than or equal to the first predetermined duration. For example, if the first rotation speed is greater than the second rotation speed, the first predetermined duration is 5 minutes and the first preset duration is 4 minutes. That is, if the drain pump runs at the first rotation speed for more than 4 minutes, even if the drain pump runs at the second rotation speed for the second predetermined duration, the condensate in the ceiling machine's drip tray will not exceed the predetermined capacity and cause leakage.

[0055] In step S1022, the second preset time is the difference between the second predetermined duration and the duration during which the drainage pump maintained the second speed when it was last stopped. For example, if the first speed is greater than the second speed, the first predetermined duration is 5 minutes, the second predetermined duration is 25 minutes, and the drainage pump ran at the second speed for 15 minutes when it was last stopped, then the drainage pump will run at the second speed for 10 minutes when it is restarted next time.

[0056] By acquiring the operating status information of the drainage pump when it was last stopped, and controlling the start-up operation status of the drainage pump based on the operating status information of the drainage pump when it was last stopped, the situation where the speed of the drainage pump when it is started again is the same as the speed when the drainage pump was last stopped is avoided. This prevents the drainage pump from sucking in a large amount of air and generating noise, or the condensate in the ceiling machine's water collection pan from exceeding the predetermined capacity and causing leakage, thereby improving the user experience.

[0057] Since the speed at which the drain pump restarts after being stopped may be the same as the speed at which it was stopped last time, the drain pump may suck in a large amount of air, causing noise, or the condensate in the ceiling-mounted air conditioner's drip tray may exceed the predetermined capacity, leading to leakage. To avoid these situations, in some embodiments, a shutdown operation control is included after step S100. The shutdown operation control includes the following steps:

[0058] S103: Obtain the operating status information of the drainage pump when it is stopped;

[0059] S104: Control the shutdown operation status of the drainage pump based on the operating status information when the drainage pump stops.

[0060] In step S103, the operating status information at the time of shutdown includes the speed information of the drainage pump and the duration information of maintaining the speed information.

[0061] Step S104 includes the following steps: S1041, if the speed information is a first speed and the first speed is greater than the second speed, then control the drain pump to continue running at the first speed for a third preset time and then shut down; S1042, if the speed information is a first speed and the first speed is less than the second speed, then control the drain pump to run at the second speed for a second preset time and then shut down; S1043, if the speed information is a second speed and the first speed is greater than the second speed, then control the drain pump to run at the first speed for a first preset time and then shut down; S1044, if the speed information is a second speed and the first speed is less than the second speed, then control the drain pump to continue running at the second speed for a fourth preset time and then shut down.

[0062] In step S1041, the third preset time is the difference between the first preset duration and the duration during which the drain pump maintains its first speed. For example, if the drain pump runs at the first speed for 5 minutes, it can drain a predetermined amount of condensate from the ceiling machine's drip tray. If the drain pump runs at the first speed for 2 minutes when it stops (stopping means the drain pump receives a shutdown command), then the drain pump will continue to run at the first speed for 3 minutes before shutting down to drain the condensate from the ceiling machine's drip tray.

[0063] In step S1044, the fourth preset time is the difference between the second preset duration and the duration during which the drain pump currently maintains the second speed. For example, if the drain pump runs at the second speed for 5 minutes, it can drain a predetermined amount of condensate from the ceiling machine's drip tray. If the drain pump runs at the second speed for 2 minutes before stopping, it will continue to run at the second speed for 3 minutes before being shut down to drain the condensate from the ceiling machine's drip tray.

[0064] By acquiring the operating status information of the drainage pump when it stops, and controlling the shutdown operation status of the drainage pump based on the operating status information, the drainage pump continues to run at the corresponding speed for the corresponding duration after shutdown before being shut down. This ensures that the speed at which the drainage pump restarts is different from the speed at which it was shut down, meaning that the speed at which the drainage pump restarts is uniquely determined, thus avoiding the situation where the speed at which the drainage pump restarts is the same as the speed at which it was last shut down.

[0065] As the indoor temperature stabilizes after the ceiling-mounted air conditioner has been running for a long time, the amount of condensate produced will decrease. If the drain pump always runs at the higher of the first and second speeds for a fixed first or second predetermined time, the condensate in the drip tray may not have accumulated to the predetermined capacity within the first or second predetermined time. At this time, the drain pump will run at the higher of the first and second speeds for the corresponding first or second predetermined time. This means that the condensate in the drip tray will be drained before the drain pump reaches the first or second predetermined time, causing the drain pump to draw in a large amount of air during the remaining time. This results in noise from the drain pump during operation, affecting the user experience.

[0066] Therefore, in some embodiments, after step S100 repeats the process of driving the drainage pump to run at the first speed for a first predetermined duration and then switching to the second speed for a second predetermined duration a predetermined number of times, the process further includes adjusting the predetermined duration information, which includes the following steps:

[0067] S105: Obtain the ceiling machine's running time information;

[0068] S106: Re-determine the first or second predetermined duration based on the ceiling machine's running time information.

[0069] In step S105, the running time information is the running time after the ceiling machine is turned on.

[0070] Step S106 includes the following steps: S1061, select the first or second predetermined duration corresponding to the preset duration interval based on the preset duration interval corresponding to the running time after the ceiling machine is turned on.

[0071] In step S1061, the preset time intervals are pre-set. For example, the preset time intervals include a first time interval of 0-6 hours, a second time interval of 6-12 hours, a third time interval of 12-18 hours, and a fourth time interval of 18-24 hours. When the first rotation speed is greater than the second rotation speed, the corresponding first predetermined time intervals are 5 minutes, 4 minutes, 3 minutes, and 2 minutes, respectively. The running time of the flower machine after it is turned on is 7 hours, falling into the second time interval, and its corresponding first predetermined time interval is 4 minutes. Of course, the preset time intervals and the corresponding first or second predetermined time intervals can be adaptively adjusted according to actual needs. The above is only one embodiment of the present invention and should not be limited thereto.

[0072] By obtaining the ceiling machine's running time information after repeatedly driving the drainage pump to run at the first speed for a first predetermined time and then switching to the second speed for a second predetermined time a predetermined number of times, and then re-determining the first or second predetermined time based on the ceiling machine's running time information, the time for the drainage pump to run at the lower of the first and second speeds after the ceiling machine has been running for a long time is relatively extended. This not only further saves energy but also extends the service life of the drainage pump. At the same time, it can also prevent the drainage pump from sucking in air and generating noise.

[0073] As can be seen from the above, the control method for the ceiling machine drain pump provided in this embodiment of the invention repeatedly drives the drain pump to run at a first speed for a first predetermined time and then switches to a second speed for a second predetermined time until the drain pump stops, while ensuring that the condensate in the water receiving pan of the ceiling machine is drained, and at the same time ensuring that the drain pump does not always run at the first speed, thereby achieving the purpose of saving energy.

[0074] Secondly, please refer to Figure 2 , Figure 2 This is a control device for a ceiling-mounted machine drain pump in some embodiments of the present invention. It is used to control the drain pump of the ceiling-mounted machine. The drain pump is a DC water pump that can operate at two different speeds. The control device for the ceiling-mounted machine drain pump includes a control module 200. The control module 200 is used to repeatedly drive the drain pump to run at a first speed for a first predetermined time and then switch to a second speed for a second predetermined time during normal operation of the drain pump, until the drain pump stops.

[0075] Wherein, when the first rotational speed is greater than the second rotational speed, the second predetermined duration is greater than the first predetermined duration; the first predetermined duration is the time required for the drain pump to drain a predetermined capacity of condensate in the ceiling machine's water collection pan when it is running at the first rotational speed, and the second predetermined duration is the time required for the condensate in the ceiling machine's water collection pan to accumulate back to the predetermined capacity after it has been drained.

[0076] Wherein, when the first speed is less than the second speed, the second predetermined time is less than the first predetermined time; the first predetermined time is the time it takes for the ceiling machine's water collection pan to accumulate a predetermined capacity of condensate, and the second predetermined time is the time it takes for the drain pump to drain the predetermined capacity of condensate from the ceiling machine's water collection pan when it runs at the second speed.

[0077] Specifically, in some embodiments, the control device for the ceiling-mounted machine drainage pump further includes a start-up control module, which includes a first acquisition unit and a first control unit. The first acquisition unit is used to acquire the operating status information of the drainage pump when it was last stopped; the first control unit is used to control the start-up status of the drainage pump according to the operating status information of the drainage pump when it was last stopped.

[0078] The first acquisition unit acquires the operating status information of the drainage pump when it last stopped, including the pump's rotational speed information and the duration of maintaining that rotational speed information.

[0079] Specifically, the first control unit controls the operation of the drainage pump based on its operating status information at the time of the last shutdown. This includes: if the speed information is a first speed, and the duration of maintaining the first speed is greater than a first preset time, then the control unit starts the drainage pump at a second speed and runs it for a second predetermined duration; if the speed information is a second speed, then the control unit starts the drainage pump at the second speed and runs it for a second preset time. The first preset time is less than or equal to the first predetermined duration, and the second preset time is the difference between the second predetermined duration and the duration during which the drainage pump maintained operation at the second speed at the time of the last shutdown.

[0080] By acquiring the operating status information of the drainage pump when it was last stopped, and controlling the start-up operation status of the drainage pump based on the operating status information of the drainage pump when it was last stopped, the situation where the speed of the drainage pump when it is started again is the same as the speed when the drainage pump was last stopped is avoided. This prevents the drainage pump from sucking in a large amount of air and generating noise, or the condensate in the ceiling machine's water collection pan from exceeding the predetermined capacity and causing leakage, thereby improving the user experience.

[0081] Specifically, in some embodiments, the control device for the ceiling-mounted machine drain pump further includes a shutdown operation control module, which includes a second acquisition unit and a second control unit. The second acquisition unit is used to acquire the operating status information of the drain pump when it is stopped; the second control unit is used to control the shutdown operation state of the drain pump according to the operating status information of the drain pump when it is stopped.

[0082] The second acquisition unit acquires the operating status information of the drainage pump when it stops, including the pump's rotational speed information and the duration of maintaining that speed information.

[0083] Specifically, the second control unit controls the shutdown status of the drainage pump based on its operating status information when the pump stops. This includes: if the speed information is a first speed, and the first speed is greater than a second speed, then the drainage pump continues to operate at the first speed for a third preset time before shutting down; if the speed information is the first speed, and the first speed is less than the second speed, then the drainage pump operates at the second speed for a second preset time before shutting down; if the speed information is the second speed, and the first speed is greater than the second speed, then the drainage pump operates at the first speed for a first preset time before shutting down; if the speed information is the second speed, and the first speed is less than the second speed, then the drainage pump continues to operate at the second speed for a fourth preset time before shutting down. The third preset time is the difference between the first preset time and the duration the drainage pump currently operates at the first speed, and the fourth preset time is the difference between the second preset time and the duration the drainage pump currently operates at the second speed.

[0084] By acquiring the operating status information of the drainage pump when it stops, and controlling the shutdown operation status of the drainage pump based on the operating status information, the drainage pump continues to run at the corresponding speed for the corresponding duration after shutdown before being shut down. This ensures that the speed at which the drainage pump restarts is different from the speed at which it was shut down, meaning that the speed at which the drainage pump restarts is uniquely determined, thus avoiding the situation where the speed at which the drainage pump restarts is the same as the speed at which it was last shut down.

[0085] Specifically, in some embodiments, the control device for the ceiling-mounted machine drainage pump further includes a predetermined duration information adjustment module, which comprises a third acquisition unit and a third control unit. The third acquisition unit is used to acquire the operating time information of the ceiling-mounted machine; the third control unit is used to re-determine the first predetermined duration or the second predetermined duration based on the operating time information of the ceiling-mounted machine.

[0086] The third acquisition unit acquires the ceiling machine's running time information, which is the running duration of the ceiling machine after it is turned on.

[0087] The third control unit redetermines the first or second predetermined duration based on the ceiling machine's operating time information, including: selecting the first or second predetermined duration corresponding to a preset duration range based on the preset duration range corresponding to the ceiling machine's operating time after startup. The preset duration range is pre-set.

[0088] By obtaining the ceiling machine's running time information after repeatedly driving the drainage pump to run at the first speed for a first predetermined time and then switching to the second speed for a second predetermined time a predetermined number of times, and then re-determining the first or second predetermined time based on the ceiling machine's running time information, the time for the drainage pump to run at the lower of the first and second speeds after the ceiling machine has been running for a long time is relatively extended. This not only further saves energy but also extends the service life of the drainage pump. At the same time, it can also prevent the drainage pump from sucking in air and generating noise.

[0089] As can be seen from the above, the control device for the ceiling machine drain pump provided in this embodiment of the invention repeatedly drives the drain pump to run at a first speed for a first predetermined time and then switches to a second speed for a second predetermined time until the drain pump stops, while ensuring that the condensate in the water receiving pan of the ceiling machine is drained, and at the same time ensuring that the drain pump does not always run at the first speed, thereby achieving the purpose of saving energy.

[0090] Thirdly, please refer to Figure 3 , Figure 3This is a schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. The present invention provides an electronic device including: a processor 301 and a memory 302. The processor 301 and the memory 302 are interconnected and communicate with each other through a communication bus 303 and / or other forms of connection mechanism (not shown). The memory 302 stores computer-readable instructions that can be executed by the processor 301. When the electronic device is running, the processor 301 executes the computer-readable instructions to execute the method in any optional implementation of the above embodiments to achieve the following function: under the normal operation state of the drainage pump, repeatedly drive the drainage pump to run at a first speed for a first predetermined time and then switch to a second speed for a second predetermined time until the drainage pump stops.

[0091] Fourthly, embodiments of this application provide an air conditioner that controls the operation of a drain pump using the steps of the method provided in the first aspect above.

[0092] In the embodiments provided by this invention, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. Furthermore, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Additionally, the displayed or discussed mutual couplings, direct couplings, or communication connections may be through some communication interfaces; indirect couplings or communication connections between devices or units may be electrical, mechanical, or other forms.

[0093] Furthermore, the units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0094] Furthermore, the functional modules in the various embodiments of the present invention can be integrated together to form an independent part, or each module can exist independently, or two or more modules can be integrated to form an independent part.

[0095] In this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations.

[0096] The above description is merely an embodiment of the present invention and is not intended to limit the scope of protection of the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A control method for a ceiling-mounted air conditioner drain pump, used to control the drain pump of the ceiling-mounted air conditioner, wherein the drain pump is a DC water pump capable of operating at two different speeds, characterized in that... The method includes the following steps: Under normal operating conditions, the drainage pump is repeatedly driven to run at a first speed for a first predetermined time and then switched to a second speed for a second predetermined time until the drainage pump stops. It also includes adjusting the scheduled duration information, which includes the following steps: Obtain the ceiling machine's running time information; The running time information refers to the running time of the ceiling machine after it is turned on; The first predetermined duration or the second predetermined duration is re-determined based on the operating time information of the ceiling machine; The step of re-determining the first predetermined duration or the second predetermined duration based on the ceiling machine's operating time information includes the following steps: Based on the preset time interval corresponding to the running time after the ceiling machine is turned on, select the first or second preset time interval corresponding to the preset time interval; It also includes power-on operation control, which includes the following steps: Obtain the operating status information of the drainage pump at the time of its last shutdown; wherein, the operating status information includes the rotational speed information of the drainage pump and the duration information of maintaining the rotational speed information; The start-up operation status of the drainage pump is controlled based on the operating status information of the drainage pump when it was last stopped. The step of controlling the start-up operation status of the drainage pump based on the operating status information of the drainage pump at the time of its last shutdown includes the following steps: If the rotation speed information is a first rotation speed, and the duration of maintaining the first rotation speed is greater than a first preset time, then the drain pump is controlled to start at a second rotation speed and run for a second predetermined time; wherein, the first preset time is less than or equal to the first predetermined time. If the rotational speed information is a second rotational speed, then the drain pump is controlled to start at the second rotational speed and run for a second preset time; wherein, the second preset time is the difference between the second predetermined duration and the duration during which the drain pump maintained operation at the second rotational speed when it last stopped.

2. The control method for the ceiling-mounted machine drainage pump according to claim 1, characterized in that, It also includes shutdown operation control, which includes the following steps: Obtain the operating status information of the drainage pump when it is stopped; wherein, the operating status information when it is stopped includes the rotational speed information of the drainage pump and the duration information of maintaining the rotational speed information; The shutdown operation status of the drainage pump is controlled based on the operating status information when the drainage pump is stopped.

3. The control method for the ceiling-mounted machine drainage pump according to claim 2, characterized in that, The step of controlling the shutdown operation state of the drainage pump based on the operating status information when the drainage pump stops includes the following steps: If the rotational speed information is a first rotational speed, and the first rotational speed is greater than the second rotational speed, then the drain pump is controlled to continue operating at the first rotational speed for a third preset time before shutting down; wherein, the third preset time is the difference between the first predetermined duration and the duration for which the drain pump currently maintains the first rotational speed. If the rotation speed information is a first rotation speed and the first rotation speed is less than the second rotation speed, then the drainage pump is controlled to run at the second rotation speed for a second predetermined time and then shut down. If the rotation speed information is the second rotation speed, and the first rotation speed is greater than the second rotation speed, then the drainage pump is controlled to run at the first rotation speed for a first predetermined time and then shut down. If the rotational speed information is the second rotational speed, and the first rotational speed is less than the second rotational speed, then the drain pump is controlled to continue operating at the second rotational speed for a fourth preset time before shutting down; wherein, the fourth preset time is the difference between the second predetermined duration and the duration for which the drain pump currently maintains operation at the second rotational speed.

4. A control device for a ceiling-mounted air conditioner drain pump, used to control the drain pump of the ceiling-mounted air conditioner, wherein the drain pump is a DC water pump capable of operating at two different speeds, characterized in that... The device includes: The control module is used to repeatedly drive the drainage pump to run at a first speed for a first predetermined time and then switch to a second speed for a second predetermined time during normal operation of the drainage pump, until the drainage pump stops. It is also used for adjusting the scheduled duration information, wherein the adjustment of the scheduled duration information includes: Obtain the ceiling machine's running time information; The running time information refers to the running time of the ceiling machine after it is turned on; The first predetermined duration or the second predetermined duration is re-determined based on the operating time information of the ceiling machine; The step of re-determining the first predetermined duration or the second predetermined duration based on the ceiling machine's operating time information includes: Based on the preset time interval corresponding to the running time after the ceiling machine is turned on, select either the first predetermined time interval or the second predetermined time interval corresponding to the preset time interval; It is also used for power-on operation control, wherein the power-on operation control includes: Obtain the operating status information of the drainage pump at the time of its last shutdown; wherein, the operating status information includes the rotational speed information of the drainage pump and the duration information of maintaining the rotational speed information; The start-up operation status of the drainage pump is controlled based on the operating status information of the drainage pump when it was last stopped. The step of controlling the start-up operation status of the drainage pump based on the operating status information of the drainage pump at the time of its last shutdown includes: If the rotation speed information is a first rotation speed, and the duration of maintaining the first rotation speed is greater than a first preset time, then the drain pump is controlled to start at a second rotation speed and run for a second predetermined time; wherein, the first preset time is less than or equal to the first predetermined time. If the rotational speed information is a second rotational speed, then the drain pump is controlled to start at the second rotational speed and run for a second preset time; wherein, the second preset time is the difference between the second predetermined duration and the duration during which the drain pump maintained operation at the second rotational speed when it last stopped.

5. An electronic device, characterized in that, It includes a processor and a memory, the memory storing computer-readable instructions that, when executed by the processor, perform the steps of the method as described in any one of claims 1-3.

6. An air conditioner, characterized in that, The operation of the drainage pump is controlled by the steps in the method described in any one of claims 1-3.

Images