Mobile air conditioner and control method thereof

Abstract

The invention relates to the technical field of air treatment equipment, in particular to a movable air conditioner and a control method thereof. The invention provides a control method of a mobile air conditioner, the mobile air conditioner comprises a condenser, a water disc, a water fetching device and a water pumping device, the water fetching device is used for fetching water in the water disc to the condenser, and the water pumping device is connected with the water disc. The control method of the movable air conditioner comprises the steps that the liquid level in the water pond is obtained; and the operation states of the water pumping device and the water fetching device are determined according to the liquid level and / or the operation mode of the mobile air conditioner and / or the operation state of the compressor. The invention provides a set of drainage control logic, which can be suitable for a fixed-frequency mobile air conditioner heat pump type, has compatibility, and can give consideration to a refrigeration mode and a heating mode at the same time. Therefore, compared with the prior art, the problem that drainage control logic of an existing movable air conditioner is complex is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of air treatment equipment, and in particular to a mobile air conditioner and a control method thereof. Background Art

[0002] At present, mobile air conditioners usually use water pumping motors to discharge condensed water. However, the water pumping motor water pumping scheme has the following shortcomings: only using the water pumping motor for drainage cannot handle the problem of excessive condensed water. Once the amount of condensed water exceeds a certain threshold, it can only choose to shut down and report a fault; the water pumping motor can only be used in cooling mode, not heating mode; for mobile air conditioners with heat pumps, the refrigerant operation in heating mode is opposite to cooling, the evaporator becomes a condenser, the water pumping motor is invalid, and the water needs to be drained with the help of a water pump. Therefore, the existing fixed-frequency mobile air conditioner heat pump model has two sets of drainage control logic, which are used for cooling mode and heating mode respectively, resulting in complex control logic of the mobile air conditioner. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide a mobile air conditioner and a control method thereof that overcome the above problems or at least partially solve the above problems, aiming to solve the problem of complex drainage control logic of existing mobile air conditioners, so as to achieve the purpose of simplifying the control logic and being compatible with cooling and heating modes at the same time.

[0004] In one aspect, the present invention provides a control method for a mobile air conditioner, wherein the mobile air conditioner comprises a condenser, a water pan, a water pumping device and a water pumping device, wherein the water pumping device is used to pump water in the water pan onto the condenser, and the water pumping device is connected to the water pan; characterized in that:

[0005] The control method comprises:

[0006] Obtaining the liquid level in the water tray;

[0007] The operating states of the water extraction device and the water pumping device are determined according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor.

[0008] Optionally, the mobile air conditioner further comprises 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;

[0009] The liquid level detection device comprises:

[0010] A float is arranged in the water tray;

[0011] Two Hall sensors are arranged at two different heights, and are used 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] According to the liquid level, it is according to a first position interval, a second position interval, and a third position interval.

[0013] Optionally, the step of determining the operating state of the pumping device and the water pumping device according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor comprises:

[0014] In response to the operating mode of the mobile air conditioner being the air supply mode or the heating mode, the water pumping device is turned off.

[0015] Optionally, the step of determining the operating status of the pumping device and the water pumping device according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating status of the compressor comprises:

[0016] In response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode, and in response to the liquid level being in a third position interval, closing the water pumping device, and opening or closing the water pumping device according to the operating state of the compressor;

[0017] In response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode and in response to the liquid level being located in the second position interval, starting the water pumping device and the water pumping device, and controlling the operating speed of the water pumping device according to the operating state of the compressor;

[0018] In response to the operating mode of the mobile air conditioner being a ventilation mode and a heating mode and in response to the liquid level being located in a second position interval, turning on the pumping device and turning off the water pumping device;

[0019] In response to the liquid level being in the first position interval, turning on the pumping device and turning off the pumping device;

[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 operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode, and in response to the liquid level being located in the third position interval, the pumping device is turned off, and the water pumping device is turned on or off according to the operating state of the compressor, wherein:

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

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

[0024] Optionally, in response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode and in response to the liquid level being in the second position interval, the pumping device and the water pumping device are turned on, and the operating speed of the water pumping device is controlled according to the operating state of the compressor, wherein:

[0025] In response to the compressor being in the on state, controlling the water pumping device to execute a second preset speed;

[0026] In response to the compressor being in an off state, controlling the water pumping device to execute a third preset speed;

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

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

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

[0030] Optionally, the control method further includes: in response to the liquid level being in the second position interval and the pumping device being turned on, starting timing, and after the operating time of the pumping device reaches a first preset time, if the liquid level is still in the second position interval, then after the operating time of the pumping device reaches a second preset time, turning off the pumping device and issuing a drainage fault prompt; 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 interval and the pumping device being turned on, starting timing, and after the operating time of the pumping device reaches a third preset time, if the liquid level has not dropped to the third position interval, closing the pumping device and issuing a drainage fault prompt, or opening a drain valve disposed at the bottom of the water tray until the drain valve is closed when the liquid level drops to the third position zone.

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

[0033] In the control method of the present invention, since the mobile air conditioner determines the operating state of the water pumping device and the water pumping device according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor, a set of drainage control logic is provided, which can be applicable to the fixed-frequency mobile air conditioner heat pump model and has compatibility, and can take into account both the cooling mode and the heating mode. Therefore, compared with the prior art, the present invention solves the problem of complex drainage control logic of the existing mobile air conditioner.

[0034] Therefore, according to the following detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0036] Figure 1 is a schematic flow chart of a control method for a mobile air conditioner according to an embodiment of the present invention;

[0037] Figure 2 is a schematic flow chart of a control method for a mobile air conditioner according to another embodiment of the present invention;

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

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

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

[0041] Figure 6 It is a schematic working principle diagram of a liquid level detection device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0042] Refer to the following Figures 1 to 6The control method of the mobile air conditioner and the air conditioner according to the embodiment of the present invention are described. The directions or positional relationships indicated by "front", "rear", "upper", "lower", "top", "bottom", "inner", "outer", "lateral", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention.

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

[0044] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", "coupled" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0045] Figure 1 is a schematic flow chart of a control method for a mobile air conditioner according to an embodiment of the present invention, and Figure 2-6 The present invention provides a control method for a mobile air conditioner. The mobile air conditioner includes a condenser 10, a water tray 20, a water pumping device 30 and a water pumping device 40. The water pumping device 30 is used to pump water in the water tray 20 onto the condenser 10. The water pumping device 40 is connected to the water tray 20.

[0046] like Figure 1 As shown, the control method of the mobile air conditioner includes the following steps:

[0047] Step S1, obtaining the liquid level in the water tray 20.

[0048] Step S2, determining the operating status of the water pumping device 40 and the water pumping device 30 according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating status of the compressor.

[0049] Specifically, "determining the operating state of the pumping device 40 and the water pumping device 30 according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor includes at least the following situations": ① determining the operating state of the pumping device 40 and the water pumping device 30 only according to the liquid level; ② determining the operating state of the pumping device 40 and the water pumping device 30 according to the operating mode of the mobile air conditioner; ③ determining the operating state of the pumping device 40 and the water pumping device 30 according to the liquid level and the operating mode of the mobile air conditioner; ④ determining the operating state of the pumping device 40 and the water pumping device 30 according to the liquid level, the operating mode of the mobile air conditioner and the operating state of the compressor. The operating state of the pumping device 40 includes not only the open state and the closed state, but also the operating time, etc. The operating state of the water pumping device 30 includes not only the open state and the closed state, but also the operating time and the rotation speed, etc. In this embodiment, the water pan 20 is used to collect condensed water generated by the condenser 10, the water pumping device 30 is used to pump the water in the water pan 20 onto the condenser 10, and the water pumping device 40 is used to pump out the condensed water in the water pan 20. The mobile air conditioner can drain water through the water pumping device 30 and / or the water pumping device 40.

[0050] In this embodiment, since the mobile air conditioner determines the operating state of the pumping device 40 and the pumping device 30 according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor, a set of drainage control logic is provided, which can be applicable to the fixed-frequency mobile air conditioner heat pump model and has compatibility, and can take into account both the cooling mode and the heating mode. Therefore, compared with the prior art, the present invention solves the problem of complex drainage control logic of the existing mobile air conditioner.

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

[0052] The liquid level detection device 60 includes a float and two Hall sensors. The float is set in the water tray 20. The two Hall sensors are set at two different heights and are used to output corresponding voltage signals according to the position change of the float to divide the liquid level from high to low into a first position interval, a second position interval, and a third position interval. According to the liquid level, it is based on the first position interval, the second position interval, and the third position interval. Figure 6 As shown, the two Hall sensors are an upper detector and a lower detector, respectively, and the upper detector is higher than the lower detector.

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

[0054] In this embodiment, the position of the float is determined according to the output voltage signals of the two Hall sensors, so as to determine the level of the condensed water in the water tray 20. Specifically, the output signal of the upper / lower position detector: the ON state corresponds to the I / O signal of low level; the OFF state corresponds to the I / O signal of high level. Figure 6 As shown, the triggering modes of the Hall sensors at two different heights are: when the float moves up and down in the liquid level column, the refrigerant water level in the water tray 20 is defined as three positions, namely the first position interval, the second position interval and the third position interval. The 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. The second position interval: the float is in the middle, at this time the upper detector and the lower detector are both OFF, and the upper detector and the lower detector both send low level signals to the processor. In the third position interval: the float is at the low end, 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-touching position of the water pumping device 30 is lower than the lowest water-touching 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 tray 20 is greater than the distance between the water pumping device 30 and the water surface of the water tray 20; therefore, it is beneficial to realize that the water pumping device 30 is in a state of priority startup 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 the bottom (lower position) of the liquid level detection device 60, and are symmetrically installed in reverse. Furthermore, the two Hall sensors are located in 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 pumping device 30 is 5 to 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 pumping 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-touching position of the water pumping device 30 is 10 mm lower than the lowest water-touching position of the liquid level detecting device 60 .

[0059] In some optional embodiments of the present invention, the control method further comprises: in response to a change in an initial signal of the liquid level detection device, determining that the liquid level detection device has touched water, and starting the pumping device.

[0060] Specifically, the operating states of the pumping device 40 and the water pumping device 30 are determined according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor, and also include: responding to the signal detected by the Hall sensor on the upper side being an initial signal and not changing, and responding to the operating mode of the mobile air conditioner being neither an air supply mode nor a heating mode; judging the operating state of the compressor, and the operating state of the compressor being in the on state, so as to operate the water pumping motor; responding to the change in the signal detected by the Hall sensor on the lower side to determine that the liquid level detection device 60 has touched water, and turning on the pumping device 40.

[0061] Specifically, the initial signal refers to the signals of the two Hall sensors when there is no water in the water tray 20. That is to say, the pumping device 40 will only operate after the liquid level detection device 60 touches the water; when the liquid level detection device 60 does not touch the water, the pumping device 40 is in a shutdown state. Since the relative position of the liquid level detection device 60 is higher than the water pumping device 30, if the liquid level detection device 60 touches the water, there must be a large amount of condensed water, and the water pumping device 30 cannot discharge all the condensed water, resulting in a continuous rise in the water level. At this time, the water pumping device 30 and the pumping device 40 can be turned on at the same time as a forced drainage solution, so that the condensed water in the water tray 20 can be discharged faster.

[0062] In some optional embodiments of the present invention, the operation modes of the mobile air conditioner include air supply mode, heating mode, cooling mode, dehumidification mode and energy saving mode. Among them, the air supply mode and heating mode are characterized by the room temperature being unchanged or increased. The cooling, dehumidification, energy saving and other modes are characterized by the air conditioner sending out cold air and the indoor temperature being reduced.

[0063] In some optional embodiments of the present invention, the water pumping device 30 includes a water pumping motor and a rotating wheel.

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

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

[0066] Specifically, the operating status of the pumping device 40 and the water pumping device 30 is determined according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating status of the compressor, and also includes: judging the operating mode of the mobile air conditioner; when the operating mode of the mobile air conditioner is the air supply mode or the heating mode, closing the water pumping device 30.

[0067] like Figure 2 As shown, in some optional embodiments of the present invention, the operating state of the pumping device 40 and the pumping device 30 is determined according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor, including:

[0068] Step S21, in response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode, and in response to the liquid level being in the third position interval, closing the pumping device 40, and opening or closing the water pumping device 30 according to the operating state of the compressor.

[0069] Step S22, in response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode and in response to the liquid level being in the second position interval, the pumping device 40 and the water pumping device 30 are turned on, and the operating speed of the water pumping device 30 is controlled according to the operating state of the compressor.

[0070] Step S23 , in response to the operating mode of the mobile air conditioner being the air supply mode and the heating mode and in response to the liquid level being in the second position interval, the pumping device 40 is turned on and the water pumping device 30 is turned off.

[0071] Step S24 , in response to the liquid level being in the first position interval, the pumping device 40 is turned on and the pumping device 30 is turned off.

[0072] 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 pumping device 40 and the water pumping device 30 is determined according to the liquid level and the operating mode of the mobile air conditioner and the operating status of the compressor, so that the condensed water in the water pan 20 can be discharged in a timely and effective manner, which is beneficial to energy saving and emission reduction.

[0074] Specifically, when the liquid level is in the third position interval, the water pumping device 40 is turned off. At this time, the control logic of the water pumping device 30 is: 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 open or close the water pumping device 30 according to the operating status of the compressor; if the operating status of the air conditioner is air supply mode or heating mode, close the water pumping device 30 and obtain the operating mode of the air conditioner.

[0075] When the liquid level is in the second position interval, the pumping device 40 is turned on. At this time, the control logic of the water pumping device 30 is: 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 air supply 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 interval, the pumping device 40 is turned on and the pumping device 30 is turned off.

[0077] Further, in some embodiments of the present invention, in response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode, and in response to the liquid level being in the third position interval, the 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 (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 operation mode of the air conditioner is the cooling mode, dehumidification mode or energy-saving mode, the liquid level is in the third position interval and the compressor is turned on, the condenser 10 continuously generates condensed water. At this time, the water pumping device 30 is turned on to pump the condensed water onto the condenser 10, thereby draining the water pan 20. When the operation mode of the air conditioner is the cooling mode, dehumidification mode or energy-saving mode, the liquid level is in the third position interval and the compressor is not turned on, since the liquid level in the water pan 20 is low and basically remains unchanged at this time, there is no need to drain, so the water pumping device 30 is not turned on. In summary, when the operation mode of the air conditioner is the cooling mode, dehumidification mode or energy-saving mode, and the liquid level is in the third position interval, the water pumping device 30 is turned on only when the compressor is turned on to drain, thereby achieving scientific and accurate drainage, which is beneficial to energy saving and emission reduction.

[0079] Furthermore, in some embodiments of the present invention, in response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode, and in response to the liquid level being in the third position interval, the 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 (in step S21): in response to the compressor changing from an on state to an off state, the water pumping device is controlled to run and then turn off after a set time.

[0080] In this embodiment, when the operating mode of the air conditioner is cooling mode, dehumidification mode or energy-saving mode, and the liquid level is in the third position interval, if the compressor changes from the on state to the off state (for example: other modes are switched to air supply mode), the water pumping device continues to operate for a set time and then turns off to remove the remaining accumulated water.

[0081] Preferably, the setting time is 5S to 20S (for example, 5S, 6S, 7S, 8S, 10S, 12S, 13S, 15S, 18S or 20S. More preferably, the setting time is 10S. The setting time can be adjusted as needed.

[0082] Furthermore, in some embodiments of the present invention, in response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode and in response to the liquid level being in the second position interval, the pumping device 40 and the water pumping device 30 are turned on, and the operating speed of the water pumping 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 pumping device 30 is controlled to execute the second preset speed; in response to the compressor being in the off state, the water pumping device 30 is controlled to execute the third preset speed; the second preset speed is greater than the third preset speed.

[0083] In this embodiment, when the operation mode of the air conditioner is the cooling mode, the dehumidification mode or the energy-saving mode and the liquid level is in the second position interval: when the compressor is in the on state, the condenser 10 continuously produces condensed water, and the water pumping device 30 pumps water at the second preset speed; when the compressor is in the off state, the water pumping device 30 pumps water at the third preset speed. Since the second preset speed is greater than the third preset speed, when the compressor is in the on state, the water pumping device 30 adopts a relatively higher drainage efficiency, which is more conducive to preventing the liquid level from continuing to rise; and when the compressor is in the off state, the water pumping device 30 adopts a relatively lower water pumping efficiency, which can ensure timely drainage while being more conducive to energy conservation 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 some 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 operating mode of the air conditioner is 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 speed of the water pumping device 30 when the liquid level is in the third position interval is lower than the water pumping speed when the liquid level is in the second position interval, which can achieve good drainage effect while being more conducive to energy conservation and emission reduction.

[0087] In some optional embodiments of the present invention, the control method also includes: in step S22 and step S23, in response to the liquid level being in the second position interval and the pumping device 40 being turned on, starting the timing, after the operating time of the pumping device 40 reaches the first preset time, if the liquid level is still in the second position interval, then after the operating time of the pumping device 40 reaches the second preset time, turning off the water pumping device 30 and issuing a drainage fault prompt; wherein the second preset time is greater than the first preset time.

[0088] Specifically, in response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode and in response to the liquid level being in the second position interval, the pumping device 40 and the water pumping device 30 are turned on, and the operating speed of the water pumping device 30 is controlled according to the operating state of the compressor; and in response to the operating mode of the mobile air conditioner being the air supply mode and the heating mode and in response to the liquid level being in the second position interval, the pumping device 40 is turned on and the water pumping device 30 is turned off, (in step S22 and step S23): when the pumping device 40 is turned on, the timing starts; after the first preset time, if the liquid level is still in the second position interval, the pumping device 40 continues to operate, and after the operating time reaches the second preset time, the pumping device 40 is turned off, the compressor is stopped synchronously, and the water pumping motor and other workloads of the air conditioner are stopped, and a drainage fault prompt is issued. In this embodiment, the mobile air conditioner can automatically detect drainage faults, which is conducive to timely repair of drainage faults.

[0089] Furthermore, the control method also includes: in step S22 and step S23, in response to the liquid level being in the second position interval and the pumping device 40 being turned on, starting the timing, and within the first preset time, if the liquid level is no longer in the second position interval, 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 also includes: in step S24, in response to the liquid level being in the first position interval and the pumping device 40 being turned on, starting the timing, after the operating time of the pumping device 40 reaches a third preset time, if the liquid level has not dropped to the third position interval, the pumping device 40 is turned off and a drainage fault prompt is issued.

[0091] Specifically, in response to the liquid level being in the first position interval, the pumping device 40 is turned on and the pumping device 30 is turned off, including: when the pumping device 40 is turned on, timing is started; after a third preset time, if the liquid level has not dropped to the third position interval, the pumping device 40 is turned off, the compressor is stopped synchronously, and the pumping motor and other work loads of the air conditioner are stopped, and a drainage fault prompt is issued. In this embodiment, the mobile air conditioner can automatically detect drainage faults, which is conducive to timely repair of drainage faults.

[0092] In other embodiments of the present invention, the mobile air conditioner includes a drain valve 50, and the drain valve 50 is disposed at the lower part of the water tray 20. 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, starting the timing, after the operation time of the pumping device 40 reaches a third preset time, if the liquid level has not dropped to the third position interval, closing the pumping device 40, and opening the drain valve 50 disposed at the lower part of the water tray 20, until the liquid level drops to the third position zone and 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 interval, the pumping device 40 is turned on and the pumping device 30 is turned off (in step S24), including: when the pumping device 40 is turned on, timing is started; after a third preset time, if the liquid level has not dropped to the third position interval, the pumping device 40 is turned off, the compressor is stopped synchronously, and the 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 zone, and the drain valve 50 is closed.

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

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

[0096] like Figure 3-5 As shown, an embodiment of the present invention further provides a mobile air conditioner, the mobile air conditioner includes a controller, the controller includes a memory and a processor, the memory stores a control program, and the control program is used to implement any of the above-mentioned air conditioner control methods when executed by the processor.

[0097] Multiple exemplary embodiments of the present invention, however, without departing from the spirit and scope of the present invention, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention. Therefore, the scope of the present invention should be understood and identified as covering all these other variations or modifications.

Claims

1. A control method for a mobile air conditioner, the mobile air conditioner comprising a condenser, a water pan, a water pumping device and a water pumping device, the water pumping device is used to pump water in the water pan onto the condenser, and the water pumping device is connected to the water pan; characterized in that: The control method comprises: Obtaining the liquid level in the water tray; The operating states of the water extraction device and the water pumping device are determined according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor.

2. The control method according to claim 1, characterized in that: The mobile air conditioner further comprises a liquid level detection device, wherein 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 comprises: A float is arranged in the water tray; Two Hall sensors are arranged at two different heights, and are used 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; According to the liquid level, it is according to 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 state of the pumping device and the water pumping device according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor includes: In response to the operating mode of the mobile air conditioner being the air supply mode or the heating mode, the water pumping device is turned off.

4. The control method according to claim 1, characterized in that: The method of determining the operating state of the pumping device and the water pumping device according to the liquid level and / or the operating mode of the mobile air conditioner and / or the operating state of the compressor includes: In response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode, and in response to the liquid level being in a third position interval, closing the water pumping device, and opening or closing the water pumping device according to the operating state of the compressor; In response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode and in response to the liquid level being located in the second position interval, starting the water pumping device and the water pumping device, and controlling the operating speed of the water pumping device according to the operating state of the compressor; In response to the operating mode of the mobile air conditioner being the air supply mode and the heating mode and in response to the liquid level being located in the second position interval, turning on the pumping device and turning off the water pumping device; In response to the liquid level being in the first position interval, turning on the pumping device and turning off the pumping device; The first position interval is higher than the second position interval, and the second position interval is higher than the third position interval.

5. The control method according to claim 4, characterized in that: In response to the mobile air conditioner operating mode being neither the air supply mode nor the heating mode, and in response to the liquid level being located in the third position interval, the pumping device is closed, and the water pumping device is opened or closed according to the operating state of the compressor, wherein: In response to the compressor being in the on state, the water pumping device is turned on and a first preset speed is executed; In response to the compressor being in an off state, the water pumping device is turned off.

6. The control method according to claim 5, characterized in that: In response to the operating mode of the mobile air conditioner being neither the air supply mode nor the heating mode and in response to the liquid level being in the second position interval, the pumping device and the water pumping device are turned on, and the operating speed of the water pumping device is controlled according to the operating state of the compressor, wherein: In response to the compressor being in the on state, controlling the water pumping device to execute a second preset speed; In response to the compressor being in an off state, controlling the water pumping device to execute a third preset speed; The second preset rotation speed is greater than the third preset rotation speed.

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

8. The control method according to claim 4, characterized in that: Also includes: In response to the liquid level being in the second position interval and the pumping device being turned on, timing starts, and after the operating time of the pumping device reaches the first preset time, if the liquid level is still in the second position interval, then after the operating time of the pumping device reaches the second preset time, the pumping device is turned off and a drainage fault prompt is issued; wherein the second preset time is greater than the first preset time.

9. The control method according to claim 4, characterized in that: Also includes: In response to the liquid level being in the first position interval and the pumping device being turned on, timing starts, and after the operating time of the pumping device reaches a third preset time, if the liquid level has not dropped to the third position interval, the pumping device is closed and a drainage fault prompt is issued, or the drain valve arranged at the bottom of the water tray is opened until the liquid level drops to the third position zone and the drain valve is closed.

10. A mobile air conditioner, characterized in that: The invention comprises a controller, wherein the controller comprises a memory and a processor, wherein a control program is stored in the memory, and when the control program is executed by the processor, it is used to implement the control method of the mobile air conditioner as claimed in any one of claims 1 to 9.

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