Control method and device of mobile air conditioner, mobile air conditioner and storage medium

Abstract

The application discloses a control method and device of a mobile air conditioner, the mobile air conditioner and a storage medium, and relates to the technical field of air conditioners. The method comprises the following steps: acquiring environmental humidity and operation parameters of the mobile air conditioner, wherein the operation parameters comprise a water pump motor current, an evaporator pipe temperature and a condenser pipe temperature; and in the case that the environmental humidity and the operation parameters satisfy first preset conditions, increasing an expansion valve opening degree by a preset opening degree value. According to the method, the water level of condensed water in a water receiving tray can be more accurately monitored, and the operation state of the mobile air conditioner can be timely adjusted, so that the water level of the water receiving tray is prevented from being excessively high to a certain extent.

Description

Technical Field

[0001] This invention relates to the field of air conditioner control, and more particularly to a control method, device, portable air conditioner, and storage medium for a portable air conditioner. Background Technology

[0002] Currently, in the control methods of portable air conditioners, the water level of condensate in the drip tray can be indirectly monitored by monitoring the current of the water pump motor. However, when the overall voltage of the unit fluctuates, the current of the water pump motor also fluctuates, causing the monitored water pump motor current to not accurately reflect the water level of condensate in the drip tray. Summary of the Invention

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a control method, device, portable air conditioner and storage medium for a portable air conditioner, which can more accurately monitor the water level of condensate in the drip tray and adjust the operating status of the portable air conditioner in a timely manner, thereby avoiding excessive water level in the drip tray to a certain extent.

[0004] In a first aspect, embodiments of the present invention provide a control method for a portable air conditioner, the portable air conditioner comprising a compressor, a condenser, an expansion valve, and an evaporator connected in a ring, the bottom of the portable air conditioner being provided with a drip tray for accommodating condensate, the portable air conditioner further comprising a first fan for blowing cold air into the room, a second fan for blowing hot air into the outside, and a water-pumping assembly for pumping condensate towards the condenser, the water-pumping assembly comprising a water-pumping motor and a water-pumping wheel; the method comprising: acquiring ambient humidity and operating parameters of the portable air conditioner, the operating parameters including water-pumping motor current, evaporator tube temperature, and condenser tube temperature; and, when the ambient humidity and the operating parameters meet a first preset condition, increasing the opening degree of the expansion valve by a preset opening degree value.

[0005] According to a first aspect of the present invention, a control method for a portable air conditioner has at least the following beneficial effects: the portable air conditioner can acquire its own operating parameters and acquire the ambient humidity through a humidity sensor. The operating parameters may include the water pump motor current, evaporator tube temperature, and condenser tube temperature. The portable air conditioner is provided with a first preset condition, which can be used to monitor the water level in the drip tray and predict whether there is a risk of condensate overflow. When the ambient humidity and operating parameters meet the first preset condition, the portable air conditioner can increase the opening of the expansion valve by a preset value, thereby increasing the evaporator tube temperature and reducing the condensate produced by the evaporator. This, to a certain extent, prevents the portable air conditioner from shutting down due to excessively high water levels in the drip tray.

[0006] In one embodiment of the present invention, the first preset conditions include: the ambient humidity is greater than a first preset humidity value and less than a second preset humidity value; the water pump motor current is greater than a first preset current value and less than a second preset current value; the evaporator tube temperature is greater than a first preset temperature value and less than a second preset temperature value; and the condenser tube temperature is greater than a third preset temperature value and less than a fourth preset temperature value.

[0007] In one embodiment of the present invention, the method further includes: determining whether the ambient humidity and the operating parameters meet a second preset condition at a first preset time interval; if the second preset condition is met, reducing the opening degree of the expansion valve by a preset opening degree value; if the second preset condition is not met and the second fan speed is not at the lowest setting, reducing the second fan speed by one setting; if the second preset condition is not met and the second fan speed is at the lowest setting, reducing the compressor frequency by a preset frequency value.

[0008] In one embodiment of the present invention, the second preset condition includes at least two of the following conditions: the water pump motor current is less than a third preset current value, and the third preset current value is less than a first preset current value; the ambient humidity is less than a third preset humidity value, and the third preset humidity value is less than a first preset humidity value; the evaporator tube temperature is greater than a fifth preset temperature value, and the fifth preset temperature value is greater than a second preset temperature value; the condenser tube temperature is greater than a sixth preset temperature value, and the sixth preset temperature value is greater than a fourth preset temperature value.

[0009] In one embodiment of the present invention, the method further includes: after reducing the speed of the second fan by one level, the method further includes: at a second preset time interval, determining whether the ambient humidity and the operating parameters meet the second preset condition; if the second preset condition is met, increasing the speed of the second fan by one level; if the second preset condition is not met and the speed of the second fan is not at the lowest level, reducing the speed of the second fan by one level again; if the second preset condition is not met and the speed of the second fan is at the lowest level, reducing the compressor frequency by the preset frequency value.

[0010] In one embodiment of the present invention, the method further includes: after reducing the speed of the second fan by one level again, the method further includes: at a third preset time interval, determining whether the ambient humidity and the operating parameters meet the second preset condition; if the second preset condition is met, increasing the speed of the second fan by one level; if the second preset condition is not met and the speed of the second fan is not at the lowest level, adjusting the speed of the second fan to the lowest level; if the second preset condition is not met and the speed of the second fan is at the lowest level, reducing the compressor frequency by the preset frequency value.

[0011] In one embodiment of the present invention, the method further includes: after adjusting the speed of the second fan to the lowest level, the method further includes: at a fourth preset time interval, determining whether the ambient humidity and the operating parameters meet the second preset condition; if the second preset condition is met, increasing the speed of the second fan by one level; if the second preset condition is not met, reducing the compressor frequency by the preset frequency value.

[0012] In one embodiment of the present invention, the method further includes: after reducing the compressor frequency to the preset frequency value, the method further includes: at a fifth preset time interval, determining whether the ambient humidity and the operating parameters meet a second preset condition; if the second preset condition is met, increasing the compressor frequency to the preset frequency value; if the second preset condition is not met, determining whether the ambient humidity and the operating parameters meet a third preset condition, and if the third preset condition is met, stopping the compressor.

[0013] In one embodiment of the present invention, the third preset condition includes at least two of the following conditions: the current of the water pump motor is greater than the second preset current value; the ambient humidity is greater than the second preset humidity value; the evaporator tube temperature is less than the first preset temperature value; and the condenser tube temperature is less than the third preset temperature value.

[0014] In a second aspect, embodiments of the present invention also provide an operation control device, including at least one control processor and a memory for communicatively connecting to the at least one control processor; the memory stores instructions executable by the at least one control processor, the instructions being executed by the at least one control processor to enable the at least one control processor to perform the control method for a portable air conditioner provided in the first aspect of the present invention.

[0015] According to a second aspect of the present invention, an operation control device has at least the following beneficial effects: the operation control device can execute the control method of the portable air conditioner provided in the first aspect of the present invention. According to the method, the portable air conditioner can acquire its own operating parameters and acquire the ambient humidity through a humidity sensor. The operating parameters may include the water pump motor current, evaporator tube temperature, and condenser tube temperature. The portable air conditioner is provided with a first preset condition, which can be used to monitor the water level in the drip tray and predict whether there is a risk of condensate overflow. When the ambient humidity and operating parameters meet the first preset condition, the portable air conditioner can increase the opening of the expansion valve by a preset opening value, thereby increasing the evaporator tube temperature and reducing the condensate produced by the evaporator. This, to a certain extent, prevents the portable air conditioner from shutting down due to excessively high water level in the drip tray.

[0016] Thirdly, embodiments of the present invention also provide a portable air conditioner, including the operation control device provided in the second aspect of the present invention.

[0017] According to a third aspect of the present invention, a portable air conditioner has at least the following beneficial effects: the portable air conditioner can acquire its own operating parameters and acquire the ambient humidity through a humidity sensor, wherein the operating parameters may include the water pump motor current, evaporator tube temperature, and condenser tube temperature. The portable air conditioner is provided with a first preset condition, which can be used to monitor the water level in the drip tray and predict whether there is a risk of condensate overflow. When the ambient humidity and operating parameters meet the first preset condition, the portable air conditioner can increase the opening of the expansion valve by a preset opening value, thereby increasing the evaporator tube temperature, reducing the condensate produced by the evaporator, and to a certain extent preventing the portable air conditioner from shutting down due to excessively high water level in the drip tray.

[0018] Fourthly, embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the control method for a portable air conditioner provided in the first aspect of the present invention.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the technical solutions of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the technical solutions of the present invention, and do not constitute a limitation on the technical solutions of the present invention.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the structure of a portable air conditioner provided in an embodiment of the present invention; Figure 2 This is a flowchart illustrating the steps of a control method for a portable air conditioner provided in an embodiment of the present invention; Figure 3 This is a flowchart of some steps of a control method for a portable air conditioner provided in an embodiment of the present invention; Figure 4 This is a partial flowchart of a control method for a portable air conditioner provided in an embodiment of the present invention; Figure 5 This is a partial flowchart of a control method for a portable air conditioner provided in an embodiment of the present invention; Figure 6 This is a partial flowchart of a control method for a portable air conditioner provided in an embodiment of the present invention; Figure 7 This is a partial flowchart of a control method for a portable air conditioner provided in an embodiment of the present invention; Figure 8 This is an overall flowchart of a control method for a portable air conditioner provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of an operation control device provided in an embodiment of the present invention. Detailed Implementation

[0022] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0023] In the description of this invention, the use of terms such as first, second, third, fourth, fifth, and sixth is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0024] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0025] This invention provides a control method, device, portable air conditioner, and storage medium for a portable air conditioner, which can more accurately monitor the water level of condensate in the drip tray and adjust the operating status of the portable air conditioner in a timely manner, thereby avoiding excessively high water levels in the drip tray to a certain extent.

[0026] The embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] Reference Figure 1 The present invention provides a portable air conditioner. Figure 1 This is a schematic diagram of a portable air conditioner according to an embodiment of the present invention. The portable air conditioner includes a compressor, a condenser, an expansion valve, and an evaporator connected in a ring. A drip tray for collecting condensate is located at the bottom of the portable air conditioner. The portable air conditioner also includes a first fan for blowing cool air into the room, a second fan for blowing hot air outwards, and a water-pumping assembly for pumping condensate towards the condenser. The water-pumping assembly includes a water-pumping motor and a water-pumping impeller. During operation, the portable air conditioner continuously produces condensate. The drip tray at the bottom of the portable air conditioner can hold the produced condensate. The water-pumping assembly pumps the condensate from the drip tray towards the condenser to cool it down. When too much condensate is produced and the condensate consumption rate is slow, the condensate level in the drip tray rises. If the water level in the drip tray is too high, the compressor needs to be stopped to halt condensate production and prevent condensate overflow.

[0028] Reference Figure 2 The embodiments of the present invention provide a control method for a portable air conditioner, applicable to, for example... Figure 1 The portable air conditioner shown includes a compressor, condenser, expansion valve and evaporator connected in a ring. The bottom of the portable air conditioner is provided with a drip tray for collecting condensate. The portable air conditioner also includes a first fan for blowing cold air into the room, a second fan for blowing hot air into the outside and a water pumping assembly for pumping condensate towards the condenser. The water pumping assembly includes a water pumping motor and a water pumping wheel. Figure 2 This is a flowchart of a control method for a portable air conditioner provided in an embodiment of the present invention, which includes steps S100 and S200.

[0029] Step S100: Obtain the ambient humidity and the operating parameters of the portable air conditioner, including the water pump motor current, evaporator tube temperature and condenser tube temperature; Step S200: When the ambient humidity and operating parameters meet the first preset conditions, increase the opening degree of the expansion valve by the preset opening degree value.

[0030] In one exemplary embodiment, the portable air conditioner may be equipped with a current sensor for detecting the current of the water pump motor, and a temperature sensor located in the middle of the evaporator and the condenser. The portable air conditioner also includes a control processor capable of acquiring its own operating parameters through the sensors. These operating parameters may include the water pump motor current, evaporator tube temperature, and condenser tube temperature. The portable air conditioner may also have a humidity sensor installed on its outer casing to acquire ambient humidity. The portable air conditioner is pre-set with a first preset condition, which is used to determine the water level in the drip tray. If the ambient humidity and the portable air conditioner's operating parameters meet the first preset condition, it indicates that the water level in the drip tray is high, and the rate of condensate production exceeds the rate of consumption, posing a risk of condensate overflow. The portable air conditioner can increase the opening of the expansion valve by a preset value, thereby raising the evaporator temperature and reducing condensate production to lower the water level in the drip tray, preventing frequent compressor shutdowns due to excessively high water levels.

[0031] In one feasible embodiment, the preset opening value can be 10 steps, but this embodiment does not specifically limit the preset opening value. The preset opening value can also be 15 steps. No matter what value the preset opening value takes, it is within the protection scope of this embodiment.

[0032] Those skilled in the art will understand that, in the embodiments of the present invention, if the expansion valve opening has a maximum opening value, the expansion valve opening will not exceed the maximum opening value. For example, the maximum opening value of the expansion valve is 90 steps, the preset opening value is 10 steps, and at a certain moment the expansion valve opening is 85 steps. If the ambient humidity and the operating parameters of the portable air conditioner at this moment meet the first preset condition, the expansion valve opening will be adjusted to the maximum opening value, that is, the expansion valve opening will only be increased by 5 steps.

[0033] In an exemplary embodiment, the first preset conditions include: ambient humidity greater than a first preset humidity value and less than a second preset humidity value; water pump motor current greater than a first preset current value and less than a second preset current value; evaporator tube temperature greater than a first preset temperature value and less than a second preset temperature value; and condenser tube temperature greater than a third preset temperature value and less than a fourth preset temperature value. It is easily understood that the first preset humidity value is less than the second preset humidity value, the first preset current value is less than the second preset current value, the first preset temperature value is less than the second preset temperature value, and the third preset temperature value is less than the fourth preset temperature value. The first preset conditions can be used to monitor the amount of condensate and can be used to predict the trend of condensate level changes in the drip tray to a certain extent. When it is detected that the ambient humidity is greater than the first preset humidity value and less than the second preset humidity value; the water pump motor current is greater than the first preset current value and less than the second preset current value; the evaporator tube temperature is greater than the first preset temperature value and less than the second preset temperature value; and the condenser tube temperature is greater than the third preset temperature value and less than the fourth preset temperature value, it indicates that the water level in the drip tray is high, and there is a risk that the condensate will continue to increase and overflow.

[0034] In a feasible embodiment, the first preset humidity value can be 60%, the second preset humidity value can be 80%, the first preset current value can correspond to the current of the water pump motor when the water level is two-thirds of the radius of the water pump, and the second preset current value can correspond to the current of the water pump motor when the condensate is about to overflow. It is easy to understand that the higher the water level in the drip tray, the greater the current of the water pump motor. The first preset temperature value can be the temperature in the middle of the evaporator when a lot of condensate is produced, i.e., the low evaporator tube temperature; the second preset temperature value can be the temperature in the middle of the evaporator when the amount of condensate produced is moderate, i.e., the medium evaporator tube temperature; the third preset temperature value can be the temperature in the middle of the condenser when the amount of condensate consumed is slow, i.e., the low condenser tube temperature; and the fourth preset temperature value can be the temperature in the middle of the condenser when the amount of condensate consumed is moderate, i.e., the medium condenser tube temperature. When the ambient humidity is greater than the first preset humidity value and less than the second preset humidity value; the water pump motor current is greater than the first preset current value and less than the second preset current value; the evaporator tube temperature is greater than the first preset temperature value and less than the second preset temperature value; and the condenser tube temperature is greater than the third preset temperature value and less than the fourth preset temperature value, it indicates that the water level in the drip tray is high and the amount of condensate produced is greater than the amount of condensate consumed. If the portable air conditioner continues to operate in the current state, there is a risk of condensate overflow.

[0035] like Figure 3 As shown, this embodiment of the invention provides another control method for a portable air conditioner. Figure 3 This is a partial flowchart of a control method for a portable air conditioner provided in an embodiment of the present invention. The method further includes steps S300 and S400.

[0036] Step S300: After a first preset time interval, determine whether the ambient humidity and operating parameters meet the second preset condition; Step S400: If the second preset condition is met, reduce the opening degree of the expansion valve by a preset opening degree value; if the second preset condition is not met and the second fan speed is not at the lowest level, reduce the second fan speed by one level; if the second preset condition is not met and the second fan speed is at the lowest level, reduce the compressor frequency by a preset frequency value.

[0037] In an exemplary embodiment, the portable air conditioner increases the opening of the expansion valve by a preset value, causing the evaporator temperature to rise and reducing the amount of condensate produced. After increasing the expansion valve opening by the preset value, at a first preset time interval, it is determined whether the ambient humidity and operating parameters meet a second preset condition. The second preset condition can be used to determine whether the water level in the drip tray has dropped to a safe range. If the ambient humidity and operating parameters meet the second preset condition, it indicates that the water level in the drip tray is low and there is no risk of condensate overflow. The expansion valve opening can then be reduced by the preset value to improve the temperature control capability. If the ambient humidity and operating parameters do not meet the second preset condition, and the second preset condition is not met, the air conditioner can determine whether the water level in the drip tray has dropped to a safe range. If the fan speed is not at its lowest setting, it indicates that the risk of condensate overflow has not yet been eliminated. The second fan speed can be reduced by one setting. The second fan is used to blow the hot air generated by the condenser outdoors. Reducing the speed of the second fan increases the condenser temperature and the consumption of condensate, thereby lowering the condensate level in the drip tray. If the ambient humidity and operating parameters do not meet the second preset conditions and the second fan speed is at its lowest setting, it is not possible to reduce the speed of the second fan. In this case, the compressor frequency can be reduced to the preset frequency value, thereby increasing the evaporator temperature, reducing condensate production, lowering the water level in the drip tray, and preventing condensate overflow.

[0038] In one feasible embodiment, if it is necessary to lower the water level in the water receiving pan, the second fan can be reduced by two speeds. This embodiment does not specifically limit the degree of speed change of the second fan. As long as the speed of the second fan is reduced to increase the temperature of the condenser, it is within the protection scope of this embodiment.

[0039] In the embodiments of the present invention, no specific limitation is made to the preset frequency value. As long as reducing the compressor frequency by the preset frequency value can achieve the effect of reducing the water level in the water receiving tray, it is within the protection scope of the embodiments of the present invention.

[0040] In the embodiments of the present invention, the first preset time may be ten minutes, but the embodiments of the present invention do not specifically limit the first preset time. The first preset time may also be five minutes or fifteen minutes, all of which are within the protection scope of the embodiments of the present invention.

[0041] In an exemplary embodiment, the second preset condition includes at least two of the following conditions: the water pump motor current is less than a third preset current value, and the third preset current value is less than a first preset current value; the ambient humidity is less than a third preset humidity value, and the third preset humidity value is less than a first preset humidity value; the evaporator tube temperature is greater than a fifth preset temperature value, and the fifth preset temperature value is greater than a second preset temperature value; the condenser tube temperature is greater than a sixth preset temperature value, and the sixth preset temperature value is greater than a fourth preset temperature value. The second preset condition is used to determine whether the water level in the drip tray is within a safe range and whether there is a risk of condensate overflow. When the ambient humidity and operating parameters meet the second preset condition, it indicates that the water level in the drip tray is good, i.e., the water level is low, and there is no risk of condensate overflow.

[0042] In a feasible embodiment, the third preset current value can correspond to the current of the water pump motor when the water level is at half the height of the pump wheel radius, at which point the water level is low; the third preset humidity value can be 40%; the fifth preset temperature value can be the temperature in the middle of the evaporator when less condensate is produced, corresponding to the high evaporator tube temperature; the sixth preset temperature value can be the temperature in the middle of the condenser when condensate is consumed quickly, corresponding to the high condenser tube temperature. The second preset condition can be used to determine whether the water level in the drip tray has dropped to a safe range, and can also help predict the trend of condensate flow to a certain extent. When the ambient humidity and operating parameters meet the second preset condition, it indicates that the water level in the drip tray is low and there is no risk of condensate overflow.

[0043] like Figure 4 As shown, this embodiment of the invention provides another control method for a portable air conditioner. Figure 4 This is a partial flowchart of another control method for a portable air conditioner provided by an embodiment of the present invention. After reducing the speed of the second fan by one level, the method may further include steps S500 and S600.

[0044] Step S500: At a second preset time interval, determine whether the ambient humidity and operating parameters meet the second preset conditions; Step S600: If the second preset condition is met, increase the speed of the second fan by one level; if the second preset condition is not met and the speed of the second fan is not at the lowest level, decrease the speed of the second fan by one level; if the second preset condition is not met and the speed of the second fan is at the lowest level, decrease the compressor frequency by a preset frequency value.

[0045] In an exemplary embodiment, after reducing the speed of the second fan by one level, after a second preset time interval, it is determined whether the ambient humidity and operating parameters meet the second preset conditions. If the ambient humidity and operating parameters meet the second preset conditions, it indicates that the water level in the drip tray is low and there is no risk of condensate overflow. The speed of the second fan can be increased by one level to improve heat exchange efficiency and enhance temperature control capability. If the second preset conditions are not met and the speed of the second fan is not at the lowest level, it indicates that there is still a risk of condensate overflow. The speed of the second fan can be reduced by one level again to increase the condenser temperature and accelerate the consumption of condensate to lower the water level in the drip tray. If the second preset conditions are not met and the speed of the second fan is at the lowest level, the speed of the second fan cannot be reduced again. The compressor frequency can be reduced by a preset frequency value to reduce the generation of condensate, lower the water level in the drip tray, and prevent condensate overflow.

[0046] In the embodiments of the present invention, the second preset time may be ten minutes, but the embodiments of the present invention do not specifically limit the second preset time. The second preset time may also be five minutes or fifteen minutes, all of which are within the protection scope of the embodiments of the present invention.

[0047] like Figure 5 As shown, this embodiment of the invention provides another control method for a portable air conditioner. Figure 5 This is a partial flowchart of another control method for a portable air conditioner provided in an embodiment of the present invention. After reducing the speed of the second fan by one level again, the method may further include steps S700 and S800.

[0048] Step S700: At a third preset time interval, determine whether the ambient humidity and operating parameters meet the second preset condition; Step S800: If the second preset condition is met, increase the speed of the second fan by one level; if the second preset condition is not met and the speed of the second fan is not at the lowest level, adjust the speed of the second fan to the lowest level; if the second preset condition is not met and the speed of the second fan is at the lowest level, reduce the compressor frequency by a preset frequency value.

[0049] In an exemplary embodiment, after reducing the speed of the second fan by one level, a third preset time interval is elapsed to determine whether the ambient humidity and operating parameters meet the second preset conditions. If the ambient humidity and operating parameters meet the second preset conditions, it indicates that the water level in the drip tray is low and there is no risk of condensate overflow. The speed of the second fan can be increased by one level to improve heat exchange efficiency and enhance temperature control capability. If the ambient humidity and operating parameters do not meet the second preset conditions and the second fan speed is not at the lowest level, it indicates that there is still a risk of condensate overflow. The speed of the second fan can be adjusted to the lowest level to increase the condenser temperature and accelerate the consumption of condensate, thereby reducing the water level in the drip tray. If the ambient humidity and operating parameters do not meet the second preset conditions and the second fan speed is at the lowest level, the speed of the second fan cannot be reduced. The compressor frequency can be reduced by a preset frequency value to reduce condensate production, lower the water level in the drip tray, and prevent condensate overflow.

[0050] In the embodiments of the present invention, the third preset time may be ten minutes, but the embodiments of the present invention do not specifically limit the third preset time. The third preset time may also be five minutes or fifteen minutes, all of which are within the protection scope of the embodiments of the present invention.

[0051] like Figure 6 As shown, this embodiment of the invention provides another control method for a portable air conditioner. Figure 6 This is a partial flowchart of another control method for a portable air conditioner provided by an embodiment of the present invention. After adjusting the speed of the second fan to the lowest level, the method may further include steps S900 and S1000.

[0052] Step S900: At a fourth preset time interval, determine whether the ambient humidity and operating parameters meet the second preset condition; Step S1000: If the second preset condition is met, increase the speed of the second fan by one level; if the second preset condition is not met, decrease the compressor frequency by a preset frequency value.

[0053] In one exemplary embodiment, after adjusting the second fan speed to the lowest setting, a fourth preset time interval is elapsed to determine whether the ambient humidity and operating parameters meet the second preset conditions. If the ambient humidity and operating parameters meet the second preset conditions, it indicates that the water level in the drip tray is low and there is no risk of condensate overflow. The second fan speed can be increased by one setting to improve heat exchange efficiency and enhance temperature control capability. If the ambient humidity and operating parameters do not meet the second preset conditions, it indicates that there is still a risk of condensate overflow. The compressor frequency can be reduced by a preset frequency value to reduce condensate generation, lower the water level in the drip tray, and prevent condensate overflow.

[0054] In the embodiments of the present invention, the fourth preset time may be ten minutes, but the embodiments of the present invention do not specifically limit the fourth preset time. The fourth preset time may also be five minutes or fifteen minutes, all of which are within the protection scope of the embodiments of the present invention.

[0055] like Figure 7 As shown, this embodiment of the invention provides another control method for a portable air conditioner. Figure 7 This is a partial flowchart of another control method for a portable air conditioner provided in an embodiment of the present invention. After reducing the compressor frequency to a preset frequency value, the method may further include steps S1100 and S1200.

[0056] Step S1100: After a fifth preset time interval, determine whether the ambient humidity and operating parameters meet the second preset condition; Step S1200: If the second preset condition is met, increase the compressor frequency to a preset frequency value; if the second preset condition is not met, determine whether the ambient humidity and operating parameters meet the third preset condition, and if the third preset condition is met, shut down the compressor.

[0057] In an exemplary embodiment, after reducing the compressor frequency to a preset value, after a fifth preset time interval, it is determined whether the ambient humidity and operating parameters meet a second preset condition. If the ambient humidity and operating parameters meet the second preset condition, it indicates that the water level in the drip tray is low and there is no risk of condensate overflow. The compressor frequency can be increased to a preset value to improve the air conditioner's temperature control capability. If the ambient humidity and operating parameters do not meet the second preset condition, it indicates that there is still a risk of condensate overflow. It is necessary to determine whether the ambient humidity and operating parameters meet a third preset condition. The third preset condition can be used to determine whether there is a significant risk of condensate overflow. If the ambient humidity and operating parameters meet the third preset condition, it indicates that the water level in the drip tray is high and the risk of condensate overflow is significant. The compressor can be stopped to reduce condensate production, while the water pump motor and second fan continue to run, continuously consuming condensate to lower the water level in the drip tray and prevent condensate overflow.

[0058] In the embodiments of the present invention, the fifth preset time can be ten minutes, but the embodiments of the present invention do not specifically limit the fifth preset time. The fifth preset time can also be five minutes or fifteen minutes, all of which are within the protection scope of the embodiments of the present invention.

[0059] In an exemplary embodiment, the third preset condition includes at least two of the following: the water pump motor current is greater than the second preset current value; the ambient humidity is greater than the second preset humidity value; the evaporator tube temperature is less than the first preset temperature value; and the condenser tube temperature is less than the third preset temperature value. A water pump motor current greater than the second preset current value indicates a high water level in the drip tray; ambient humidity greater than the second preset humidity value indicates high air humidity, resulting in more condensate production; evaporator tube temperature less than the first preset temperature value indicates a low evaporator tube temperature, resulting in more condensate production; and condenser tube temperature less than the third preset temperature value indicates less condensate consumption. When the ambient humidity and operating parameters meet the third preset condition, it indicates a high risk of condensate overflow, requiring timely measures to lower the drip tray water level.

[0060] Reference Figure 8 This invention provides another control method for a portable air conditioner. Figure 8 This is an overall flowchart of a control method for a portable air conditioner provided by an embodiment of the present invention. The portable air conditioner can be equipped with a current sensor for detecting the current of the water pump motor, and temperature sensors are also installed in the middle of the evaporator and condenser. The portable air conditioner also includes a control processor capable of acquiring its own operating parameters through the sensors. These operating parameters may include the water pump motor current, evaporator tube temperature, and condenser tube temperature. A humidity sensor can be installed on the air conditioner casing to acquire the ambient humidity. The portable air conditioner is pre-set with first preset conditions, which can be used to determine the water level of the condensate in the drip tray. The first preset conditions may include: ambient humidity greater than a first preset humidity value and less than a second preset humidity value; water pump motor current greater than a first preset current value and less than a second preset current value; evaporator tube temperature greater than a first preset temperature value and less than a second preset temperature value; and condenser tube temperature greater than a third preset temperature value and less than a fourth preset temperature value. If the ambient humidity and the operating parameters of the portable air conditioner meet the first preset conditions, it means that the water level in the drip tray is high and the rate of condensate production is greater than the rate of consumption, posing a risk of condensate overflow. The portable air conditioner can increase the opening of the expansion valve to the preset value, thereby increasing the evaporator temperature and reducing the production of condensate to lower the water level in the drip tray and prevent the water level in the drip tray from becoming too high.

[0061] After increasing the expansion valve opening to a preset value, after a first preset time interval, it is determined whether the ambient humidity and operating parameters meet the second preset condition. The second preset condition can be used to determine whether the water level in the receiving pan has dropped to a safe range. The second preset condition may include at least two of the following conditions: the pump motor current is less than the third preset current value, and the third preset current value is less than the first preset current value; the ambient humidity is less than the third preset humidity value, and the third preset humidity value is less than the first preset humidity value; the evaporator tube temperature is greater than the fifth preset temperature value, and the fifth preset temperature value is greater than the second preset temperature value; the condenser tube temperature is greater than the sixth preset temperature value, and the sixth preset temperature value is greater than the fourth preset temperature value. If the ambient humidity and operating parameters meet the second preset conditions, it indicates that the water level in the drip tray is low and there is no risk of condensate overflow. The opening of the expansion valve can be reduced to the preset value to improve the temperature control capability. If the ambient humidity and operating parameters do not meet the second preset conditions and the second fan speed is not at the lowest setting, it indicates that the risk of condensate overflow has not been eliminated. The second fan speed can be reduced by one setting. The second fan is used to blow the hot air generated by the condenser outdoors. Reducing the speed of the second fan increases the condenser temperature and the consumption of condensate, thereby reducing the condensate level in the drip tray. If the ambient humidity and operating parameters do not meet the second preset conditions and the second fan speed is at the lowest setting, it is not possible to reduce the speed of the second fan. The compressor frequency can be reduced to the preset value to increase the evaporator temperature, reduce condensate production, lower the water level in the drip tray, and prevent condensate overflow.

[0062] After reducing the speed of the second fan by one level, after a second preset time interval, it is determined whether the ambient humidity and operating parameters meet the second preset conditions. If the ambient humidity and operating parameters meet the second preset conditions, it means that the water level in the drip tray is low and there is no risk of condensate overflow. The speed of the second fan can then be increased by one level to improve heat exchange efficiency and enhance temperature control. If the second preset conditions are not met and the second fan speed is not at the lowest level, the speed of the second fan can be reduced by one level again to increase the condenser temperature and accelerate the consumption of condensate, thereby reducing the water level in the drip tray. If the second preset conditions are not met and the second fan speed is at the lowest level, the compressor frequency can be reduced by a preset value to reduce condensate production, lower the water level in the drip tray, and prevent condensate overflow.

[0063] After reducing the second fan speed by one level, after a third preset time interval, it is determined whether the ambient humidity and operating parameters meet the second preset conditions. If the ambient humidity and operating parameters meet the second preset conditions, it means that the water level in the drip tray is low and there is no risk of condensate overflow. The second fan speed can be increased by one level to improve heat exchange efficiency and enhance temperature control. If the ambient humidity and operating parameters do not meet the second preset conditions and the second fan speed is not at the lowest level, the second fan speed can be adjusted to the lowest level to increase the condenser temperature, accelerate the consumption of condensate, and lower the water level in the drip tray. If the ambient humidity and operating parameters do not meet the second preset conditions and the second fan speed is at the lowest level, the compressor frequency can be reduced by a preset value to reduce condensate production, lower the water level in the drip tray, and prevent condensate overflow.

[0064] After adjusting the second fan speed to the lowest setting, after a fourth preset time interval, it is determined whether the ambient humidity and operating parameters meet the second preset conditions. If the ambient humidity and operating parameters meet the second preset conditions, it means that the water level in the drip tray is low and there is no risk of condensate overflow. The second fan speed can be increased by one setting to improve heat exchange efficiency and enhance temperature control capability. If the ambient humidity and operating parameters do not meet the second preset conditions, the compressor frequency can be reduced to a preset value to reduce condensate production, lower the water level in the drip tray, and prevent condensate overflow.

[0065] After reducing the compressor frequency to a preset value, at a fifth preset time interval, it is determined whether the ambient humidity and operating parameters meet the second preset condition. If the ambient humidity and operating parameters meet the second preset condition, it indicates that the water level in the drip tray is low and there is no risk of condensate overflow. The compressor frequency can be increased to the preset value to improve the air conditioner's temperature control capability. If the ambient humidity and operating parameters do not meet the second preset condition, it is necessary to determine whether the ambient humidity and operating parameters meet the third preset condition. The third preset condition is used to determine whether there is a significant risk of condensate overflow. The third preset condition can include at least two of the following: the pump motor current is greater than the second preset current value; the ambient humidity is greater than the second preset humidity value; the evaporator tube temperature is less than the first preset temperature value; and the condenser tube temperature is less than the third preset temperature value. If the ambient humidity and operating parameters meet the third preset condition, it indicates that the water level in the drip tray is high and the risk of condensate overflow is significant. The compressor can be stopped, which reduces condensate production. The pump motor and second fan continue to run. The second fan dries the condensate pumped by the pump motor or blows it outdoors, thus continuously consuming condensate to lower the water level in the drip tray and prevent condensate overflow.

[0066] In this embodiment, the first preset time, the second preset time, the third preset time, the fourth preset time, and the fifth preset time are not specifically limited. The first preset time, the second preset time, the third preset time, the fourth preset time, and the fifth preset time can all be ten minutes.

[0067] Furthermore, in this embodiment, no specific limitations are made on the preset opening value and preset frequency value. As long as they can be used to adjust the amount of condensate water, they are all within the protection scope of this embodiment.

[0068] According to the method provided in this embodiment, the portable air conditioner can more accurately monitor the condensate level in the drip tray and adjust its operating status in a timely manner. By taking measures such as increasing the opening of the expansion valve, reducing the speed of the second fan, reducing the compressor frequency, and stopping the compressor, the condensate level in the drip tray can be lowered. This can prevent condensate overflow to a certain extent and avoid frequent shutdowns of the portable air conditioner due to excessively high drip tray levels. Furthermore, when the drip tray level is low and the risk of condensate overflow is reduced, the operating status of the portable air conditioner can be readjusted to improve its temperature control capability and enhance the user experience. In this embodiment, compared to existing portable air conditioners, the portable air conditioner can also eliminate the need for a water level switch, thereby saving production costs to a certain extent.

[0069] Reference Figure 9 This invention also provides an operation control device 900. Figure 9 This is a schematic diagram of an operation control device 900 provided in an embodiment of the present invention. The operation control device 900 includes at least one control processor 910 and a memory 920 for communicatively connecting to the at least one control processor 910. The memory 920 stores instructions that can be executed by the at least one control processor 910. The instructions are executed by the at least one control processor 910 to enable the at least one control processor 910 to execute the control method for a portable air conditioner provided in the method embodiment of the present invention. According to this method, the portable air conditioner can more accurately monitor the water level of the condensate in the drip tray and can adjust the operating status of the portable air conditioner in a timely manner, thereby preventing condensate overflow to a certain extent and avoiding frequent shutdowns of the air conditioner due to excessively high water levels in the drip tray.

[0070] This invention also provides a portable air conditioner, including the operation control device 900 provided in this embodiment. This portable air conditioner can more accurately monitor the condensate level in the drip tray and adjust its operating status in a timely manner, thereby preventing condensate overflow and avoiding frequent shutdowns due to excessively high drip tray levels.

[0071] This invention also provides a computer-readable storage medium storing computer-executable instructions for causing a computer to perform the control method for a portable air conditioner provided in the method embodiments of this invention.

[0072] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media or non-transitory media and communication media or transient media. As is known to those skilled in the art, the term computer storage media 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 includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc DVD or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically contain computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0073] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A control method for a portable air conditioner, characterized in that, The portable air conditioner includes a compressor, condenser, expansion valve, and evaporator connected in a ring. The bottom of the portable air conditioner is provided with a drip tray for collecting condensate. The portable air conditioner also includes a first fan for blowing cold air into the room, a second fan for blowing hot air outwards, and a water-pumping assembly for pumping condensate towards the condenser. The water-pumping assembly includes a water-pumping motor and a water-pumping impeller. The method includes: Acquire ambient humidity and the operating parameters of the portable air conditioner, including water pump motor current, evaporator tube temperature, and condenser tube temperature; When the ambient humidity and the operating parameters meet the first preset conditions, the opening degree of the expansion valve will be increased by a preset value; The first preset condition includes: The ambient humidity is greater than a first preset humidity value and less than a second preset humidity value; The current of the water pump motor is greater than the first preset current value and less than the second preset current value; The evaporator tube temperature is greater than a first preset temperature value and less than a second preset temperature value; The condenser tube temperature is greater than the third preset temperature value and less than the fourth preset temperature value; The method further includes: determining whether the ambient humidity and the operating parameters meet a second preset condition at a first preset time interval; If the second preset condition is met, the opening degree of the expansion valve will be reduced by the preset opening degree value; If the second preset condition is not met and the second fan speed is not at the lowest setting, the second fan speed will be reduced by one setting; If the second preset condition is not met and the second fan speed is at the lowest setting, the compressor frequency will be reduced to a preset frequency value. The second preset condition includes at least two of the following conditions: The current of the water pump motor is less than the third preset current value, and the third preset current value is less than the first preset current value; The ambient humidity is less than a third preset humidity value, and the third preset humidity value is less than the first preset humidity value; The evaporator tube temperature is greater than the fifth preset temperature value, and the fifth preset temperature value is greater than the second preset temperature value; The condenser tube temperature is greater than the sixth preset temperature value, and the sixth preset temperature value is greater than the fourth preset temperature value.

2. The control method for a portable air conditioner according to claim 1, characterized in that, After reducing the speed of the second fan by one level, the method further includes: At a second preset time interval, determine whether the ambient humidity and the operating parameters meet the second preset condition; If the second preset condition is met, the speed of the second fan will be increased by one level; If the second preset condition is not met and the second fan speed is not at the lowest level, the second fan speed will be reduced by one level again; If the second preset condition is not met and the second fan speed is at its lowest setting, the compressor frequency is reduced to the preset frequency value.

3. The control method for a portable air conditioner according to claim 2, characterized in that, After reducing the speed of the second fan by one level again, the method further includes: At a third preset time interval, determine whether the ambient humidity and the operating parameters meet the second preset condition; If the second preset condition is met, the speed of the second fan will be increased by one level; If the second preset condition is not met and the second fan speed is not at the lowest setting, adjust the second fan speed to the lowest setting; If the second preset condition is not met and the second fan speed is at its lowest setting, the compressor frequency is reduced to the preset frequency value.

4. The control method for a portable air conditioner according to claim 3, characterized in that, After adjusting the second fan speed to the lowest setting, the method further includes: At a fourth preset time interval, determine whether the ambient humidity and the operating parameters meet the second preset condition; If the second preset condition is met, the speed of the second fan will be increased by one level; If the second preset condition is not met, the compressor frequency is reduced to the preset frequency value.

5. The control method for a portable air conditioner according to claim 1, 2, 3, or 4, characterized in that, After reducing the compressor frequency to the preset frequency value, the method further includes: At a fifth preset time interval, determine whether the ambient humidity and the operating parameters meet the second preset condition; If the second preset condition is met, the compressor frequency will be increased by the preset frequency value; If the second preset condition is not met, determine whether the ambient humidity and the operating parameters meet the third preset condition, and if the third preset condition is met, shut down the compressor.

6. The control method for a portable air conditioner according to claim 5, characterized in that, The third preset condition includes at least two of the following conditions: The current of the water pump motor is greater than the second preset current value; The ambient humidity is greater than the second preset humidity value; The evaporator tube temperature is lower than the first preset temperature value; The condenser tube temperature is less than the third preset temperature value.

7. An operation control device, characterized in that, It includes at least one control processor and a memory for communicatively connecting to the at least one control processor; the memory stores instructions executable by the at least one control processor, which, when executed by the at least one control processor, enable the at least one control processor to perform the control method for a portable air conditioner as described in any one of claims 1 to 6.

8. A portable air conditioner, characterized in that, Includes the operation control device as described in claim 7.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions for causing a computer to perform the control method for a portable air conditioner as described in any one of claims 1 to 6.

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