A mobile air conditioner and a control method thereof

Abstract

The present application relates to air treatment equipment technical field, particularly to a mobile air conditioner and a control method thereof. The present application provides a control method of a mobile air conditioner, the mobile air conditioner comprising a condenser, a water tray, a water hitting device and a water pumping device, the water hitting device being used to hit water in the water tray to the condenser, and the water pumping device being connected to the water tray. The control method of the mobile air conditioner comprises: obtaining the liquid level in the water tray; and determining the operating state of the water pumping device and the water hitting device according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor. The present application provides a set of drainage control logic, which is applicable to the fixed frequency mobile air conditioner heat pump model, and has compatibility, and can simultaneously consider the refrigeration mode and the heating mode. Therefore, compared with the prior art, the present application solves the problem of complex drainage control logic of the existing mobile air conditioner.

Description

Technical Field

[0001] This invention relates to the field of air handling equipment technology, and in particular to a portable air conditioner and its control method. Background Technology

[0002] Currently, portable air conditioners typically use a pump motor to drain condensate. However, this method has several drawbacks: relying solely on the pump motor cannot handle excessive condensate; once the condensate volume exceeds a certain threshold, the unit must shut down and report a fault. The pump motor is only suitable for cooling mode, not heating mode. For portable air conditioners with heat pumps, the refrigerant operates in reverse in heating mode, turning the evaporator into a condenser, rendering the pump motor ineffective and requiring a water pump for drainage. Therefore, existing fixed-frequency portable air conditioner heat pump models have two sets of drainage control logic, one for cooling mode and one for heating mode, resulting in complex control logic for portable air conditioners. Summary of the Invention

[0003] In view of the above problems, the present invention is proposed to provide a portable air conditioner and its control method that overcomes or at least partially solves the above problems, aiming to solve the problem of complex drainage control logic of existing portable air conditioners, so as to simplify the control logic and be compatible with both cooling and heating modes.

[0004] On one hand, the present invention provides a control method for a portable air conditioner, the portable air conditioner including a condenser, a water tray, a water pumping device, and a water suction device, wherein the water pumping device is used to pump water from the water tray onto the condenser, and the water suction device is connected to the water tray; characterized in that,

[0005] The control method includes:

[0006] Obtain the liquid level in the water pan;

[0007] The operating status of the pumping device and the water dispensing device is determined based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor.

[0008] Optionally, the portable air conditioner further includes a liquid level detection device, wherein the lowest water contact position of the water-spraying device is lower than the lowest water contact position of the liquid level detection device;

[0009] The liquid level detection device includes:

[0010] A float is installed inside the water pan;

[0011] Two Hall sensors are set at two different heights to output corresponding voltage signals according to the position change of the float, so as to divide the liquid level into a first position interval, a second position interval, and a third position interval from high to low.

[0012] The liquid level is determined by a first position interval, a second position interval, and a third position interval.

[0013] Optionally, determining the operating status of the pumping device and the water dispensing device based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor includes:

[0014] In response to the portable air conditioner's operating mode being either air supply mode or heating mode, the water pumping device is turned off.

[0015] Optionally, determining the operating status of the water pumping device and the water dispensing device based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor includes:

[0016] In response to the fact that the operating mode of the portable air conditioner is not the air supply mode or the heating mode, and in response to the fact that the liquid level is in the third position range, the water pumping device is turned off, and the water dispensing device is turned on or off according to the operating status of the compressor.

[0017] In response to the fact that the operating mode of the portable air conditioner is not the air supply mode or the heating mode and in response to the fact that the liquid level is in the second position range, the water pumping device and the water dispensing device are turned on, and the operating speed of the water dispensing device is controlled according to the operating status of the compressor.

[0018] In response to the portable air conditioner being in either air supply mode or heating mode, and in response to the liquid level being in the second position range, the water pumping device is activated and the water dispensing device is deactivated.

[0019] In response to the liquid level being in the first position range, the pumping device is turned on and the water dispensing device is turned off;

[0020] The first position interval is higher than the second position interval, and the second position interval is higher than the third position interval.

[0021] Optionally, in response to the portable air conditioner operating in a mode other than ventilation mode and heating mode, and in response to the liquid level being in the third position range, the water pumping device is turned off, and the water dispensing device is turned on or off according to the compressor's operating status.

[0022] In response to the compressor being in the on state, the water pumping device is turned on and the first preset speed is executed;

[0023] In response to the compressor being in the off state, the water pumping device is turned off.

[0024] Optionally, in response to the portable air conditioner not being in either the air supply mode or the heating mode, and in response to the liquid level being in the second position range, the water pumping device and the water dispensing device are activated, and the operating speed of the water dispensing device is controlled according to the compressor's operating status.

[0025] In response to the compressor being turned on, the water pumping device is controlled to execute a second preset speed.

[0026] In response to the compressor being in a closed state, the water pumping device is controlled to execute a third preset speed;

[0027] The second preset speed is greater than the third preset speed.

[0028] Optionally, the first preset rotational speed is less than the second preset rotational speed;

[0029] The first preset speed is less than or equal to the third preset speed.

[0030] Optionally, the control method further includes: in response to the liquid level being in the second position range and the pumping device being turned on, starting a timer; after the pumping device has been running for a first preset time, if the liquid level is still in the second position range, then after the pumping device has been running for a second preset time, turning off the pumping device and issuing a drainage fault warning; wherein the second preset time is greater than the first preset time.

[0031] Optionally, the control method further includes: in response to the liquid level being in the first position range and the pumping device being turned on, starting a timer; after the pumping device has been running for a third preset time, if the liquid level has not dropped to the third position range, turning off the pumping device and issuing a drainage fault warning; or, opening a drain valve located at the bottom of the water pan until the liquid level drops to the third position range and then closing the drain valve.

[0032] On the other hand, the present invention also provides a portable air conditioner, including a controller, the controller including a memory and a processor, the memory storing a control program, the control program being executed by the processor to implement the control method of the portable air conditioner as described in any of the above.

[0033] In the control method of this invention, since the operating status of the water pumping device and the water dispensing device is determined based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor, a drainage control logic is provided. This logic is applicable to fixed-frequency portable air conditioner heat pump models and is compatible, simultaneously accommodating both cooling and heating modes. Therefore, compared with the prior art, this invention solves the problem of complex drainage control logic in existing portable air conditioners.

[0034] Therefore, those skilled in the art will more readily understand the above and other objects, advantages and features of the present invention from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0035] The following sections will describe some specific embodiments of the invention in detail by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0036] Figure 1 This is a schematic flowchart of a control method for a portable air conditioner according to an embodiment of the present invention;

[0037] Figure 2 This is a schematic flowchart of a control method for a portable air conditioner according to another embodiment of the present invention;

[0038] Figure 3 This is a schematic structural diagram of a portable air conditioner according to an embodiment of the present invention;

[0039] Figure 4 This is a schematic structural diagram of a portable air conditioner according to an embodiment of the present invention (the water tray is not shown in the figure);

[0040] Figure 5 This is a schematic structural diagram of a portable air conditioner according to an embodiment of the present invention (the water tray is not shown in the figure);

[0041] Figure 6 This is a schematic diagram illustrating the working principle of a liquid level detection device according to an embodiment of the present invention. Detailed Implementation

[0042] The following reference Figures 1 to 6This invention describes a control method for a portable air conditioner and an air conditioner according to embodiments of the present invention. The terms "front," "rear," "upper," "lower," "top," "bottom," "inner," "outer," and "lateral," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplification, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0043] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," etc., may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically stated, this indicates that other features are not excluded and may be further included.

[0044] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," and "coupling," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] Figure 1 This is a schematic flowchart of a control method for a portable air conditioner according to an embodiment of the present invention, and in conjunction with... Figure 2-6 The present invention provides a control method for a portable air conditioner, the portable air conditioner including a condenser 10, a water tray 20, a water pumping device 30 and a water pumping device 40, the water pumping device 30 being used to pump water from the water tray 20 onto the condenser 10, and the water pumping device 40 being connected to the water tray 20.

[0046] like Figure 1 As shown, the control method for a portable air conditioner includes the following steps:

[0047] Step S1: Obtain the liquid level in the water pan 20.

[0048] Step S2: Determine the operating status of the water pumping device 40 and the water filling device 30 based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor.

[0049] Specifically, "determining the operating status of the water pumping device 40 and the water dispensing device 30 based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor includes at least the following situations": ① determining the operating status of the water pumping device 40 and the water dispensing device 30 based solely on the liquid level; ② determining the operating status of the water pumping device 40 and the water dispensing device 30 based on the operating mode of the portable air conditioner; ③ determining the operating status of the water pumping device 40 and the water dispensing device 30 based on both the liquid level and the operating mode of the portable air conditioner; ④ determining the operating status of the water pumping device 40 and the water dispensing device 30 based on the liquid level, the operating mode of the portable air conditioner, and the operating status of the compressor. The operating status of the water pumping device 40 includes not only the open and closed states, but also the operating time, etc. The operating status of the water dispensing device 30 includes not only the open and closed states, but also the operating time and speed, etc. In this embodiment, the water tray 20 is used to collect condensate produced by the condenser 10, the water pumping device 30 is used to pump the water in the water tray 20 onto the condenser 10, and the water pumping device 40 is used to pump out the condensate from the water tray 20. The portable air conditioner can drain water through the water pumping device 30 and / or the water pumping device 40.

[0050] In this embodiment, since the portable air conditioner determines the operating status of the water pumping device 40 and the water dispensing device 30 based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor, a drainage control logic is provided. This logic is applicable to fixed-frequency portable air conditioner heat pump models and is compatible, simultaneously accommodating both cooling and heating modes. Therefore, compared with the prior art, this invention solves the problem of complex drainage control logic in existing portable air conditioners.

[0051] like Figure 5 As shown, in some embodiments of the present invention, the portable air conditioner further includes a liquid level detection device 60, and the lowest water contact position of the water pumping device 30 is lower than the lowest water contact position of the liquid level detection device 60.

[0052] The liquid level detection device 60 includes a float and two Hall effect sensors. The float is disposed within the water pan 20. The two Hall effect sensors, positioned at two different heights, output corresponding voltage signals based on changes in the float's position, thereby dividing the liquid level into a first position interval, a second position interval, and a third position interval, from high to low. The liquid level is determined according to these three position intervals. Figure 6 As shown, the two Hall sensors are the upper-level detector and the lower-level detector, respectively, with the upper-level detector being higher than the lower-level detector.

[0053] Specifically, in step S2, "determining the operating status of the pumping device 40 and the water-spraying device 30 based on the liquid level" includes: determining the operating status of the pumping device 40 and the water-spraying device 30 based on the first position interval, the second position interval, and the third position interval.

[0054] In this embodiment, the position of the float is determined based on the output voltage signals of two Hall effect sensors, thereby determining the level of condensate in the water pan 20. Specifically, the upper / lower position detector outputs the following signals: ON state corresponds to a low level I / O signal; OFF state corresponds to a high level I / O signal. Figure 6 As shown, the triggering modes of the Hall sensors at two different heights are as follows: When the float moves up and down in the liquid level column, the refrigerant water level in the water pan 20 is defined into three positions: the first position interval, the second position interval, and the third position interval. First position interval: The float is at the top; at this time, the upper detector is ON, the lower detector is OFF, the upper detector sends a low-level signal to the processor, and the lower detector sends a high-level signal to the processor. Second position interval: The float is in the middle; at this time, both the upper and lower detectors are OFF, and both send low-level signals to the processor. Third position interval: The float is at the bottom; at this time, the upper detector is OFF, the lower detector is ON, the upper detector sends a high-level signal to the processor, and the lower detector sends a low-level signal to the processor. The liquid level detection device 60 in this embodiment has the advantage of high measurement accuracy.

[0055] In this embodiment, since the lowest water contact position of the water-spraying device 30 is lower than the lowest water contact position of the liquid level detection device 60, that is, the distance between the liquid level detection device 60 and the bottom of the water pan 20 is greater than the distance between the water-spraying device 30 and the water surface of the water pan 20, it is beneficial to enable the water-spraying device 30 to be in a state of priority start-up and long-term operation.

[0056] Furthermore, in some optional embodiments of the present invention, the two Hall sensors are respectively located at the top (upper position) and bottom (lower position) of the liquid level detection device 60, and are installed symmetrically in opposite directions. Even further, the two Hall sensors are located inside the liquid level column of the liquid level detection device 60.

[0057] In some embodiments of the present invention, the lowest water contact position of the water-spraying device 30 is 5-15 mm lower than the lowest water contact position of the liquid level detection device 60. For example, the difference between the lowest water contact position of the water-spraying device 30 and the lowest water contact position of the liquid level detection device 60 is 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, or 15 mm; the above difference can be adjusted according to actual needs.

[0058] Preferably, the lowest water contact position of the water-spraying device 30 is 10mm lower than the lowest water contact position of the liquid level detection device 60.

[0059] In some optional embodiments of the present invention, the control method further includes: in response to a change in the initial signal of the liquid level detection device, determining that the liquid level detection device is in contact with water, and activating the pumping device.

[0060] Specifically, determining the operating status of the water pumping device 40 and the water dispensing device 30 based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor further includes: responding to the signal detected by the upper Hall sensor being an initial signal and not changing, and responding to the portable air conditioner operating mode not being the air supply mode or the heating mode; determining the operating status of the compressor, and if the compressor operating status is the on state, causing the water dispensing motor to operate; responding to the signal detected by the lower Hall sensor changing, to determine that the liquid level detection device 60 is in contact with water, and activating the water pumping device 40.

[0061] Specifically, the initial signal refers to the signals from the two Hall sensors when there is no water in the water pan 20. That is, the pumping device 40 will only operate after the level detection device 60 comes into contact with water; when the level detection device 60 is not in contact with water, the pumping device 40 is in the off state. Since the level detection device 60 is relatively higher than the water pumping device 30, if the level detection device 60 comes into contact with water, there will inevitably be a large amount of condensate, and the water pumping device 30 will not be able to drain all the condensate, causing the water level to rise continuously. In this case, both the water pumping device 30 and the pumping device 40 can be turned on simultaneously as a forced drainage solution, thereby draining the condensate from the water pan 20 more quickly.

[0062] In some optional embodiments of the present invention, the operating modes of the portable air conditioner include air supply mode, heating mode, cooling mode, dehumidification mode, and energy-saving mode. The air supply mode and heating mode are characterized by maintaining a constant room temperature or increasing it. The cooling, dehumidification, and energy-saving modes are characterized by the air conditioner delivering cold air, thus lowering the indoor temperature.

[0063] In some alternative embodiments of the present invention, the water-spraying device 30 includes a water-spraying motor and a rotary wheel.

[0064] In some optional embodiments of the present invention, the pumping device 40 includes a pumping pipe 41 and a water pump. The inlet of the pumping pipe 41 is connected to the water pan 20, and the water pump is mounted on the pumping pipe 41 to provide pumping power.

[0065] In some optional embodiments of the present invention, the operating status of the water pumping device 40 and the water filling device 30 is determined according to the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor, including: in response to the operating mode of the portable air conditioner being either the air supply mode or the heating mode, the water filling device 30 is turned off.

[0066] Specifically, determining the operating status of the water pumping device 40 and the water filling device 30 based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor also includes: determining the operating mode of the portable air conditioner; and turning off the water filling device 30 when the operating mode of the portable air conditioner is the air supply mode or the heating mode.

[0067] like Figure 2 As shown, in some optional embodiments of the present invention, the operating states of the water pumping device 40 and the water dispensing device 30 are determined based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating state of the compressor, including:

[0068] In step S21, in response to the fact that the operating mode of the portable air conditioner is not the air supply mode or the heating mode, and in response to the fact that the liquid level is in the third position range, the water pumping device 40 is turned off, and the water pumping device 30 is turned on or off according to the operating status of the compressor.

[0069] In step S22, in response to the fact that the operating mode of the portable air conditioner is not the air supply mode or the heating mode and in response to the liquid level being in the second position range, the water pumping device 40 and the water dispensing device 30 are turned on, and the operating speed of the water dispensing device 30 is controlled according to the operating status of the compressor.

[0070] Step S23: In response to the operating mode of the portable air conditioner being either air supply mode or heating mode and in response to the liquid level being in the second position range, the water pumping device 40 is turned on and the water dispensing device 30 is turned off.

[0071] In step S24, in response to the liquid level being in the first position range, the pumping device 40 is turned on and the water-spraying device 30 is turned off.

[0072] Among them, the first position interval is higher than the second position interval, and the second position interval is higher than the third position interval.

[0073] In this embodiment, the operating status of the water pumping device 40 and the water dispensing device 30 is determined according to the liquid level, the operating mode of the portable air conditioner, and the operating status of the compressor, so that the condensate in the water pan 20 can be discharged in a timely and effective manner, which is conducive to energy conservation and emission reduction.

[0074] Specifically, when the liquid level is in the third position range, the water pumping device 40 is turned off. At this time, the control logic of the water pumping device 30 is as follows: obtain the operating mode of the air conditioner; if the operating mode of the air conditioner is cooling mode, dehumidification mode or energy saving mode, obtain the operating status of the compressor, and turn the water pumping device 30 on or off according to the operating status of the compressor; if the operating status of the air conditioner is air supply mode or heating mode, turn off the water pumping device 30 and obtain the operating mode of the air conditioner.

[0075] When the liquid level is in the second position range, the water pumping device 40 is turned on. At this time, the control logic of the water pumping device 30 is as follows: obtain the operating mode of the air conditioner; if the operating mode of the air conditioner is cooling mode, dehumidification mode or energy saving mode, turn on the water pumping device 30, obtain the operating status of the compressor, and control the operating speed of the water pumping device 30 according to the operating status of the compressor; if the operating status of the air conditioner is fan mode or heating mode, turn off the water pumping device 30 and obtain the operating mode of the air conditioner.

[0076] When the liquid level is in the first position range, turn on the pumping device 40 and turn off the water pumping device 30.

[0077] Furthermore, in some embodiments of the present invention, in response to the mobile air conditioner operating in a mode other than the air supply mode and the heating mode, and in response to the liquid level being in the third position range, the water pumping device 40 is turned off, and the water pumping device 30 is turned on or off according to the compressor's operating state (in step S21): in response to the compressor being in the on state, the water pumping device 30 is turned on and the first preset speed is executed; in response to the compressor being in the off state, the water pumping device 30 is turned off.

[0078] In this embodiment, when the air conditioner is operating in cooling, dehumidifying, or energy-saving mode, and the liquid level is in the third position range while the compressor is on, the condenser 10 continuously produces condensate. At this time, the water-discharging device 30 is activated to discharge the condensate onto the condenser 10, thereby draining the water pan 20. When the air conditioner is operating in cooling, dehumidifying, or energy-saving mode, and the liquid level is in the third position range while the compressor is not on, the liquid level in the water pan 20 is low and remains relatively constant, so drainage is unnecessary and the water-discharging device 30 is not activated. In summary, when the air conditioner is operating in cooling, dehumidifying, or energy-saving mode, and the liquid level is in the third position range, the water-discharging device 30 is activated only when the compressor is on to drain the water, achieving precise and efficient drainage, which is beneficial for energy conservation and emission reduction.

[0079] Furthermore, in some embodiments of the present invention, in response to the mobile air conditioner operating in a mode other than the air supply mode and the heating mode, and in response to the liquid level being in the third position range, the water pumping device 40 is turned off, and the water dispensing device 30 is turned on or off according to the compressor's operating state (in step S21): in response to the compressor changing from the on state to the off state, the water dispensing device is controlled to operate for a set time and then turned off.

[0080] In this embodiment, when the air conditioner is in cooling mode, dehumidification mode or energy-saving mode, and the liquid level is in the third position range, if the compressor changes from the on state to the off state (for example, other modes switch to air supply mode), the water pumping device will continue to run for a set time and then turn off to remove the remaining water.

[0081] Preferably, the set time is 5 to 20 seconds (e.g., 5 seconds, 6 seconds, 7 seconds, 8 seconds, 10 seconds, 12 seconds, 13 seconds, 15 seconds, 18 seconds, or 20 seconds). More preferably, the set time is 10 seconds. The set time can be adjusted as needed.

[0082] Furthermore, in some embodiments of the present invention, in response to the portable air conditioner operating in a mode other than air supply mode and heating mode, and in response to the liquid level being in a second position range, the water pumping device 40 and the water dispensing device 30 are turned on, and the operating speed of the water dispensing device 30 is controlled according to the operating state of the compressor (in step S22): in response to the compressor being in the on state, the water dispensing device 30 is controlled to execute a second preset speed; in response to the compressor being in the off state, the water dispensing device 30 is controlled to execute a third preset speed; the second preset speed is greater than the third preset speed.

[0083] In this embodiment, when the air conditioner is operating in cooling mode, dehumidification mode, or energy-saving mode and the liquid level is in the second position range: when the compressor is on, the condenser 10 continuously produces condensate, and the water pumping device 30 pumps water at a second preset speed; when the compressor is off, the water pumping device 30 pumps water at a third preset speed. Since the second preset speed is greater than the third preset speed, the water pumping device 30 uses a relatively higher drainage efficiency when the compressor is on, which is more conducive to preventing the liquid level from rising continuously; while when the compressor is off, the water pumping device 30 uses a relatively lower water pumping efficiency, which can ensure timely drainage while being more conducive to energy saving and emission reduction.

[0084] Furthermore, in some embodiments of the present invention, the first preset rotational speed is less than the second preset rotational speed; the first preset rotational speed is less than the third preset rotational speed.

[0085] In other embodiments of the present invention, the first preset rotational speed is less than the second preset rotational speed; the first preset rotational speed is equal to the third preset rotational speed.

[0086] In these embodiments, when the air conditioner is in cooling mode, dehumidification mode or energy-saving mode and the compressor is turned on: the first preset speed is less than the second preset speed, and the water pumping device 30 has a lower water pumping speed when the liquid level is in the third position range than when the liquid level is in the second position range. This can achieve good drainage effect while being more conducive to energy saving and emission reduction.

[0087] In some optional embodiments of the present invention, the control method further includes: in steps S22 and S23, in response to the liquid level being in the second position range and the pumping device 40 being turned on, timing is started; after the running time of the pumping device 40 reaches the first preset time, if the liquid level is still in the second position range, after the running time of the pumping device 40 reaches the second preset time, the pumping device 30 is turned off and a drainage failure prompt is issued; wherein, the second preset time is greater than the first preset time.

[0088] Specifically, in steps S22 and S23, when the portable air conditioner's operating mode is neither the air supply mode nor the heating mode, and the liquid level is in the second position range, the water pump 40 and the water dispensing device 30 are activated, and the operating speed of the water dispensing device 30 is controlled according to the compressor's operating status; and when the portable air conditioner's operating mode is the air supply mode or the heating mode, and the liquid level is in the second position range, the water pump 40 is activated and the water dispensing device 30 is deactivated: when the water pump 40 is activated, a timer begins; after a first preset time, if the liquid level is still in the second position range, the water pump 40 continues to operate, and after the operating time reaches the second preset time, the water pump 40 is deactivated, the compressor is stopped simultaneously, the water dispensing motor and other workloads of the air conditioner are stopped, and a drainage fault warning is issued. In this embodiment, the portable air conditioner can automatically detect drainage faults, which is beneficial for timely repair of drainage faults.

[0089] Furthermore, the control method also includes: in steps S22 and S23, in response to the liquid level being in the second position range and the pumping device 40 being turned on, timing is started, and if the liquid level is no longer in the second position range within a first preset time, the operating state of the pumping device 40 is controlled according to the current liquid level.

[0090] In some embodiments of the present invention, the control method further includes: in step S24, in response to the liquid level being in the first position range and the pumping device 40 being turned on, timing is started; after the running time of the pumping device 40 reaches a third preset time, if the liquid level has not dropped to the third position range, the pumping device 40 is turned off and a drainage failure prompt is issued.

[0091] Specifically, in response to the liquid level being in the first position range, the pumping device 40 is activated and the water-dispensing device 30 is deactivated. This includes: starting a timer when the pumping device 40 is activated; and after a third preset time, if the liquid level has not decreased to the third position range, deactivating the pumping device 40, simultaneously stopping the compressor, stopping the water-dispensing motor and other workloads of the air conditioner, and issuing a drainage fault warning. In this embodiment, the portable air conditioner can automatically detect drainage faults, which is beneficial for timely repair of drainage faults.

[0092] In other embodiments of the present invention, the portable air conditioner includes a drain valve 50 disposed at the lower part of the water pan 20. The control method further includes: in step S24, in response to the liquid level being in a first position range and the water pumping device 40 being turned on, a timer is started; after the water pumping device 40 has been running for a third preset time, if the liquid level has not dropped to the third position range, the water pumping device 40 is turned off and the drain valve 50 disposed at the lower part of the water pan 20 is opened until the liquid level drops to the third position range and then the drain valve 50 is closed.

[0093] Specifically, the drain valve 50 is an electronic drain valve 50. In response to the liquid level being in the first position range, the pumping device 40 is turned on and the water pumping device 30 is turned off (in step S24), the process includes: starting a timer when the pumping device 40 is turned on; after a third preset time, if the liquid level has not dropped to the third position range, the pumping device 40 is turned off, the compressor is stopped simultaneously, and the water pumping motor and other working loads of the air conditioner are stopped, and the drain valve 50 is opened until the liquid level drops to the third position range and then the drain valve 50 is closed.

[0094] Furthermore, the third preset time is longer than the second preset time.

[0095] In some embodiments of the present invention, the control method further includes: in step S24, in response to the liquid level being in the first position interval and the pumping device 40 being turned on, timing is started; if the liquid level drops to the third position interval within a third preset time, the operating state of the pumping device 40 and the water-spraying device 30 is controlled according to the third position interval (step S21 is executed).

[0096] like Figure 3-5 As shown, an embodiment of the present invention also provides a portable air conditioner, which includes a controller. The controller includes a memory and a processor. The memory stores a control program, which, when executed by the processor, is used to implement the control method of any of the above-described air conditioners.

[0097] While this invention provides several exemplary embodiments, many other variations or modifications consistent with the principles of this invention can be directly determined or derived from the disclosure of this invention without departing from its spirit and scope. Therefore, the scope of this invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. A control method for a portable air conditioner, the portable air conditioner comprising a condenser, a water tray, a water pumping device, and a water extraction device, wherein the water pumping device is used to pump water from the water tray onto the condenser, and the water extraction device is connected to the water tray; characterized in that, The control method includes: Obtain the liquid level in the water pan; The operating status of the water pumping device and the water dispensing device is determined based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor. The method of determining the operating status of the water pumping device and the water dispensing device based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor includes: In response to the fact that the operating mode of the portable air conditioner is not the air supply mode or the heating mode, and in response to the fact that the liquid level is in the third position range, the water pumping device is turned off, and the water dispensing device is turned on or off according to the operating status of the compressor. In response to the fact that the operating mode of the portable air conditioner is not the air supply mode or the heating mode and in response to the fact that the liquid level is in the second position range, the water pumping device and the water dispensing device are turned on, and the operating speed of the water dispensing device is controlled according to the operating status of the compressor. In response to the portable air conditioner being in either air supply mode or heating mode, and in response to the liquid level being in the second position range, the water pumping device is activated and the water dispensing device is deactivated. In response to the liquid level being in the first position range, the pumping device is turned on and the water dispensing device is turned off; The first position interval is higher than the second position interval, and the second position interval is higher than the third position interval.

2. The control method according to claim 1, characterized in that, The portable air conditioner also includes a liquid level detection device, and the lowest water contact position of the water pumping device is lower than the lowest water contact position of the liquid level detection device. The liquid level detection device includes: A float is installed inside the water pan; Two Hall sensors are set at two different heights to output corresponding voltage signals according to the position change of the float, so as to divide the liquid level into a first position interval, a second position interval, and a third position interval from high to low. The liquid level is determined by a first position interval, a second position interval, and a third position interval.

3. The control method according to claim 1, characterized in that, The method of determining the operating status of the water pumping device and the water dispensing device based on the liquid level and / or the operating mode of the portable air conditioner and / or the operating status of the compressor includes: In response to the portable air conditioner's operating mode being either air supply mode or heating mode, the water pumping device is turned off.

4. The control method according to claim 1, characterized in that, In response to the portable air conditioner not being in either the ventilation or heating mode, and in response to the liquid level being in the third position range, the water pump is shut off, and the water dispensing device is turned on or off according to the compressor's operating status. In response to the compressor being in the on state, the water pumping device is turned on and the first preset speed is executed; In response to the compressor being in the off state, the water pumping device is turned off.

5. The control method according to claim 4, characterized in that, When the portable air conditioner is not operating in either the ventilation or heating mode, and when the liquid level is in the second position range, the water pump and water dispensing devices are activated, and the operating speed of the water dispensing devices is controlled according to the compressor's operating status. In response to the compressor being turned on, the water pumping device is controlled to execute a second preset speed. In response to the compressor being in a closed state, the water pumping device is controlled to execute a third preset speed; The second preset speed is greater than the third preset speed.

6. The control method according to claim 5, characterized in that, The first preset rotational speed is less than the second preset rotational speed; The first preset speed is less than or equal to the third preset speed.

7. The control method according to claim 1, characterized in that, Also includes: In response to the liquid level being in the second position range and the pumping device being turned on, a timer is started. If the liquid level is still in the second position range after the pumping device has been running for a first preset time, the pumping device is turned off after the pumping device has been running for a second preset time, and a drainage fault warning is issued; wherein the second preset time is longer than the first preset time.

8. The control method according to claim 1, characterized in that, Also includes: In response to the liquid level being in the first position range and the pumping device being turned on, a timer is started. If the liquid level does not drop to the third position range after the pumping device has been running for a third preset time, the pumping device is turned off and a drainage fault warning is issued. Alternatively, the drain valve located at the bottom of the water pan is opened until the liquid level drops to the third position range and then the drain valve is closed.

9. A portable air conditioner, characterized in that, The device includes a controller, which comprises a memory and a processor. The memory stores a control program, which, when executed by the processor, is used to implement the control method for a portable air conditioner as described in any one of claims 1 to 8.

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