An air conditioner and a control method of the air conditioner

Abstract

The present application relates to the field of air conditioning technology, in particular to an air conditioner and a control method of the air conditioner. The air conditioner comprises a shell and a water pan, the lower part of the shell is provided with an air inlet; the water pan is movably arranged at the air inlet, and the water pan has a first state and a second state; in the first state, the water pan blocks part of the air inlet to collect condensed water; in the second state, the water pan opens the air inlet. The air conditioner is configured to control the state of the water pan according to a control strategy corresponding to the operation mode of the air conditioner. The present application can control the water pan to execute the second state when the water pan does not collect water, so that the water pan avoids the air inlet or reduces the blocking of the air inlet, thereby opening the air inlet, increasing the effective air inlet area, and improving the heat exchange effect. In addition, the air conditioner selects different control strategies to control the state of the water pan according to its operation mode, so that the scientific, reasonable and accurate control of the water pan can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning technology, and in particular, to an air conditioner and a control method of the air conditioner. BACKGROUND

[0002] The indoor unit of the ceiling type air conditioner comprises a shell, the shell is provided with an air inlet, and the shell is provided with an indoor heat exchanger and a water pan. The water pan is fixedly arranged below the indoor heat exchanger, and the water pan is parallel to the cross section of the air inlet. When the air conditioner is in cooling operation, the condensate water on the surface of the indoor heat exchanger falls into the water pan and is guided to the outdoor through the water pump. The effective volume of the water pan is greater than the maximum condensate water amount of the indoor heat exchanger per unit time. However, when the air conditioner heat exchanger surface does not produce condensate water, the water pan does not work. However, since the state of the water pan is not adjustable, the water pan will affect the air inlet amount at this time, and thus the heat exchange effect will be affected. SUMMARY

[0003] In view of the above problems, the present application is proposed in order to provide an air conditioner and a control method of the air conditioner which can overcome the above problems or at least partially solve the above problems, and can solve the problem that the state of the existing water pan is not adjustable.

[0004] Specifically, the present application provides an air conditioner, comprising:

[0005] a shell, the lower part of the shell is provided with an air inlet;

[0006] a water pan, the water pan is movably arranged at the air inlet, the water pan has a first state and a second state, in the first state, the water pan blocks part of the air inlet to collect condensate water, and in the second state, the water pan opens the air inlet; and

[0007] the air conditioner is configured to control the state of the water pan according to a control strategy corresponding to the operation mode of the air conditioner.

[0008] Optionally, the water pan comprises a pan bottom and a pan wall arranged around the pan bottom;

[0009] the pan bottom comprises a plurality of swing pages, in the first state, each swing page is horizontally arranged and sequentially connected to form a water collection space with the pan wall, and in the second state, each swing page is arranged obliquely or vertically, and an air flow channel is formed between adjacent swing pages to open the air inlet.

[0010] Optionally, the air conditioner further comprises a driving device connected with the water pan, for driving the water pan to switch between the first state and the second state.

[0011] Optionally, the water pan further comprises rotating shafts, each of the rotating shafts is connected with one of the rotating arms, and each of the rotating shafts is arranged in parallel and spaced apart;

[0012] The driving device comprises:

[0013] a motor configured to drive one of the rotating shafts to rotate;

[0014] a transmission belt sleeved on end portions of the rotating shafts and configured to drive the rotating shafts to rotate synchronously.

[0015] In another aspect, the embodiment of the present application further provides a control method of an air conditioner, wherein the air conditioner is the air conditioner as described in any one of the above embodiments, and the control method comprises:

[0016] acquiring an operation mode of the air conditioner;

[0017] controlling a state of the water pan according to a control strategy corresponding to the operation mode of the air conditioner.

[0018] Optionally, the step of controlling the state of the water pan according to the control strategy corresponding to the operation mode of the air conditioner comprises: when the air conditioner operates in a cooling mode, controlling the state of the water pan according to a first control strategy.

[0019] The first control strategy comprises:

[0020] acquiring a dew point temperature, a coil temperature and water information in the water pan;

[0021] controlling the state of the water pan according to the dew point temperature, the coil temperature and the water information in the water pan.

[0022] Optionally, the step of acquiring the dew point temperature comprises:

[0023] acquiring an indoor environment temperature and an indoor environment humidity;

[0024] obtaining the dew point temperature according to the indoor environment temperature and the indoor environment humidity.

[0025] Optionally, the step of controlling the state of the water pan according to the dew point temperature, the coil temperature and the water information in the water pan comprises:

[0026] determining whether a first condition is met, wherein the first condition is that the dew point temperature is less than or equal to the coil temperature and there is no water in the water pan;

[0027] if the first condition is met, controlling the water pan to execute the second state;

[0028] If no, the water pan is controlled to maintain the first state, and the air conditioner is controlled to run in cooling mode for a first preset time length, and then the steps of obtaining the dew point temperature, the coil temperature and the water information in the water pan are performed again.

[0029] Optionally, the control strategy for controlling the state of the water pan according to the operation mode of the air conditioner comprises: when the air conditioner runs in heating mode, a second control strategy is used to control the state of the water pan.

[0030] The second control strategy comprises:

[0031] The water information in the water pan is obtained.

[0032] The state of the water pan is controlled according to the water information in the water pan.

[0033] Optionally, the control strategy for controlling the state of the water pan according to the water information in the water pan comprises:

[0034] A second condition is determined, i.e. whether there is no water in the water pan.

[0035] If yes, the water pan is controlled to execute the second state.

[0036] If no, the water pan is controlled to maintain the first state, and the air conditioner is controlled to run in heating mode for a second preset time length, and then the step of obtaining the water information in the water pan is performed again.

[0037] In the air conditioner and the control method thereof, the water pan is movably arranged at the air inlet and has a first state and a second state. Thus, when condensate water is generated on the surface of the indoor heat exchanger, the water pan is controlled to execute the first state to block part of the air inlet to receive the condensate water flowing down from the surface of the indoor heat exchanger. When the water pan does not receive water, the water pan is controlled to execute the second state to avoid the air inlet or reduce the blocking of the air inlet to open the air inlet, increase the effective air inlet area and improve the heat exchange effect. In addition, the air conditioner selects different control strategies for controlling the state of the water pan according to the operation mode, so that the water pan can be controlled scientifically, rationally and accurately, and the actual demand for the state of the water pan under different operation modes is met.

[0038] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of specific embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0039] Some specific embodiments of the present application will be described in detail below with reference to the attached drawings. The same reference numbers in different drawings denote the same or similar components or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

[0040] Figure 1 is a schematic structural view of an air conditioner according to an embodiment of the present application;

[0041] Figure 2 is a schematic sectional view of an air conditioner according to an embodiment of the present application;

[0042] Figure 3 is a schematic structural view of a bottom of a water pan in a first state according to an embodiment of the present application;

[0043] Figure 4 is a detailed view of A in FIG. 9; Figure 3

[0044] Figure 5 is a schematic structural view of a bottom of a water pan in a second state according to an embodiment of the present application;

[0045] Figure 6 is a schematic flowchart of a control method of an air conditioner according to an embodiment of the present application;

[0046] Figure 7 is a schematic flowchart of a control method of an air conditioner according to an embodiment of the present application;

[0047] Figure 8 is a schematic flowchart of a control method of an air conditioner according to an embodiment of the present application;

[0048] Figure 9 is a schematic flowchart of a control method of an air conditioner according to an embodiment of the present application;

[0049] Figure 10 is a schematic flowchart of a control method of an air conditioner according to an embodiment of the present application;

[0050] Figure 11 is a schematic flowchart of a control method of an air conditioner according to an embodiment of the present application;

[0051] Figure 12 is a schematic flowchart of a control method of an air conditioner according to an embodiment of the present application.

[0052] List of Reference Numerals:

[0053] 10, housing; 101, air inlet

[0054] ​20, water pan; 21, pan bottom; 22, pan wall; 221, swing vane; 222, pivot;

[0055] 30, air flow channel;

[0056] 40, drive device; 41, motor; 42, transmission belt;

[0057] 50, indoor heat exchanger. DETAILED DESCRIPTION

[0058] The air conditioner and the control method of the air conditioner are described below. Figures 1 to 12 In the description of the present embodiments, it is to be understood that the terms "first", "second", "third" and the like, do not by themselves convey a relative importance, or a specific order of precedence, but are used merely to distinguish one feature from another, and are not used to denote or imply a sequence or order of performing or occurrence of those features. Thus, a feature defined with a "first", "second" or "third" modifier can include one or more of the features, either explicitly or implicitly, and combinations of one or more features. In the description of the present embodiments, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "comprises" or "includes" a certain or certain features, it means that it does not exclude other features and can further include other features, unless otherwise specifically described.

[0059] Unless otherwise explicitly specified and limited, the terms "set", "mounted", "connected", "linked", "fixed", "coupled" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in the present embodiments according to the specific circumstances.

[0060] In addition, in the description of the present embodiments, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. That is, in the description of the present embodiments, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" or "below" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0061] In the description of the present embodiments, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0062] Figure 1 is a schematic structural diagram of an air conditioner according to an embodiment of the present application, as Figure 1 shown, and in conjunction with Figure 4 , the embodiment of the present application provides an air conditioner, which comprises a shell 10 and a water pan 20. The shell 10 is provided with an air inlet 101 at the lower part; the water pan 20 is movably arranged in the air inlet 101. The water pan 20 has a first state and a second state, and the water pan is configured to: in the first state, the water pan shields part of the air inlet 101 to collect the condensed water flowing down from the indoor heat exchanger; in the second state, the water pan opens the air inlet 101. The air conditioner is configured to: according to the control strategy corresponding to the operation mode of the air conditioner, control the state of the water pan 20.

[0063] Since the indoor heat exchanger 50 is a condenser when the air conditioner is running in the heating mode, the surface of the indoor heat exchanger 50 will not produce condensed water. When the air conditioner is running in the cooling mode, the indoor heat exchanger 50 is an evaporator; wherein, when the temperature of the coil is below the dew point temperature, the surface of the evaporator will produce condensed water; when the temperature of the coil is greater than or equal to the dew point temperature, the surface of the evaporator will not produce condensed water. Therefore, in the present embodiment, the water pan 20 is movably arranged in the air inlet 101, and has a first state and a second state; and according to the operation mode of the air conditioner, different control strategies are selected to scientifically and reasonably control the state of the water pan 20. Thus, in the case that the surface of the indoor heat exchanger 50 produces condensed water, the water pan 20 can be controlled to execute the first state, so that the water pan 20 shields part of the air inlet 101 to receive the condensed water flowing down from the surface of the indoor heat exchanger 50. In the case that the surface of the indoor heat exchanger 50 does not produce condensed water and there is no water in the water pan, the water pan 20 can be controlled to execute the second state, so that the water pan 20 avoids the air inlet 101 or reduces the shielding of the air inlet 101, to open the air inlet 101, increase the air inlet area, and improve the heat exchange effect.

[0064] As Figure 2As shown, in some optional embodiments of the present invention, an indoor heat exchanger 50 is provided inside the housing 10. When the water receiving tray 20 is in the first state, the water receiving tray 20 is positioned below the indoor heat exchanger 50. When the water receiving tray 20 is in the second state, the water receiving tray 20 can be moved to another position to avoid the air inlet 101; alternatively, the bottom 21 of the water receiving tray 20 can be opened to allow air to pass through.

[0065] In some optional embodiments of the present invention, controlling the state of the water collection tray 20 according to a control strategy corresponding to the operating mode of the air conditioner may include: controlling the state of the water collection tray 20 according to the dew point temperature, coil temperature and water information in the water collection tray 20 when the air conditioner is in cooling mode; and / or, controlling the state of the water collection tray 20 according to the water information in the water collection tray 20 when the air conditioner is in heating mode.

[0066] In some optional embodiments of the present invention, the water receiving tray 20 includes a tray bottom 21 and a tray wall 22 disposed around the tray bottom 21. The tray bottom 21 is rotatably disposed at the bottom of the tray wall 22. In a first state, the tray bottom 21 is horizontally disposed and closedly connected to the tray wall 22 to form a water receiving space. In a second state, the tray bottom 21 is inclined or vertically disposed to open the air inlet 101 at the water receiving tray 20, thereby increasing the air inlet area of ​​the air inlet 101.

[0067] like Figures 2 to 5 As shown, in some optional embodiments of the present invention, the water receiving tray 20 includes a tray bottom 21 and a tray wall 22 disposed around the tray bottom 21. The tray bottom 21 includes a plurality of flaps 221, configured such that when the water receiving tray 20 is in a first state, each flap 221 is horizontally arranged and sequentially connected to form a water receiving space with the tray wall 22; when the water receiving tray 20 is in a second state, each flap 221 is inclined or vertically arranged, and an airflow channel 30 is formed between adjacent flaps 221 to open the air inlet 101.

[0068] In this embodiment, the bottom 21 of the tray is composed of multiple movable flaps 221. When collecting water, the flaps 221 are connected together to form a closed structure, and the bottom 21 is connected to the tray wall 22 to form a water-collecting space. When water collection is not needed, the flaps 221 are rotated to form an angle between the flaps 221 and the horizontal plane, thereby opening the bottom 21 and opening the air inlet 101 at the bottom 21, allowing airflow to enter the housing 10 through the airflow channel 30 between adjacent flaps 221. The water-collecting tray 20 of this embodiment has the advantages of simple design and low manufacturing cost, and can be quickly opened or closed.

[0069] Furthermore, when the water receiving tray 20 is in the second state, each flap 221 is set vertically, which is more conducive to air intake.

[0070] Further, compared with the integral structure of the bottom 21 in the previous embodiment, the split structure of the bottom 21 in the present embodiment can improve the efficiency of opening or closing the water pan 20, and make the appearance of the air conditioner more beautiful.

[0071] As shown in Figure 5 some optional embodiments of the present application, the air conditioner further comprises a driving device 40 connected with the water pan 20, for driving the water pan 20 to switch between the first state and the second state. By setting the driving mechanism, automatic control of the water pan 20 can be realized, thereby improving the user experience.

[0072] As shown in Figure 5 some optional embodiments of the present application, the water pan 20 further comprises a rotating shaft 222, each swing page 221 is connected with a rotating shaft 222, and each rotating shaft 222 is arranged in parallel and spaced apart. The driving device 40 comprises a motor 41 and a transmission belt 42. The motor 41 is configured to drive one rotating shaft 222 to rotate, specifically, the output end of the motor 41 is connected with one of the rotating shafts 222. The transmission belt 42 is sleeved on the end portions of the rotating shafts 222 and is configured to drive the rotating shafts 222 to rotate synchronously.

[0073] In use, the motor 41 is started to drive one of the rotating shafts 222 to rotate; at the same time, the rotating shaft 222 drives the transmission belt 42 to move, and under the action of the transmission belt 42, the other rotating shafts 222 are driven to rotate synchronously. Specifically, the transmission belt 42 has an annular structure.

[0074] As shown in Figure 5 some optional embodiments of the present application, the output end of the motor 41 is connected with the rotating shaft 222 at the edge of the rotating shafts 222. In an alternative embodiment, the output end of the motor 41 is connected with the rotating shaft 222 at the middle of the rotating shafts 222. In these two embodiments, the first embodiment can make the transmission belt 42 have better transmission effect.

[0075] As shown in Figure 1 and Figure 5 some optional embodiments of the present application, the swing page 221 extends along the length direction of the shell 10. The rotating shaft 222 is located at one side of the swing page 221 in the width direction, and the other side of the swing page 221 in the width direction at least partially has an arc surface, so that adjacent swing pages 221 can be separated from each other when the rotating shaft 222 rotates.

[0076] In some alternative embodiments of the present application, the water level detection device is arranged in the water pan 20 to obtain water information in the water pan 20. For example, the water level detection device can be a radar water level gauge or a float switch. When the water level detection device is a float switch, the water information in the water pan 20 can be reflected by the on-off of the float switch. Specifically, the on-off of the float switch can be represented by k, where k is a constant; when k = 1, it indicates that there is no water in the water pan 20.

[0077] In some alternative embodiments of the present application, the lower part of the shell 10 is provided with an air outlet. In this embodiment, the air inlet 101 and the air outlet are arranged at the lower part of the shell 10, which is beneficial to the installation and use requirements of the ceiling type air conditioner indoor unit.

[0078] As shown in Figures 6 to 12 The present application also provides a control method of an air conditioner, which can be the air conditioner according to any one of the above embodiments. The control method of the air conditioner can include the following steps:

[0079] S100, obtaining the operation mode of the air conditioner;

[0080] S200, controlling the state of the water pan 20 according to the control strategy corresponding to the operation mode of the air conditioner.

[0081] The control method of the present embodiment can adopt different control strategies for different operation modes of the air conditioner, so as to accurately control the state of the water pan 20, and open the air inlet 101 at the position where the water pan 20 is located when there is no condensate water on the surface of the indoor heat exchanger 50 and / or there is no water in the water pan, thereby increasing the effective air inlet area and improving the heat exchange effect.

[0082] In some alternative embodiments of the present application, step S100 can include the following steps:

[0083] S101, obtaining the indoor environment temperature and the set temperature;

[0084] S102, determining whether the set temperature is less than the indoor environment temperature; if yes, performing S103; if no, performing S104;

[0085] S103, determining that the operation mode of the air conditioner is the cooling mode;

[0086] S104, determining that the operation mode of the air conditioner is the heating mode.

[0087] The control method of the present embodiment can quickly and accurately obtain the operation mode of the air conditioner.

[0088] In some alternative embodiments, step S100 can include obtaining the operation mode of the air conditioner according to user instructions.

[0089] As shown in the Figure 7 some optional embodiments of the present application, step S200 can include: S210, when the air conditioner is running in the cooling mode, controlling the state of the water pan 20 according to a first control strategy.

[0090] In some optional embodiments of the present application, the first control strategy includes: obtaining a dew point temperature and a coil temperature; and controlling the state of the water pan 20 according to the dew point temperature and the coil temperature.

[0091] As shown in the Figure 8 some optional embodiments of the present application, the first control strategy includes:

[0092] S211, obtaining a dew point temperature, a coil temperature and water information in the water pan 20;

[0093] S212, controlling the state of the water pan 20 according to the dew point temperature, the coil temperature and the water information in the water pan 20.

[0094] During the process of the air conditioner running in the cooling mode, the relationship between the coil temperature and the dew point temperature is a key factor to determine whether the indoor heat exchanger 50 produces condensate water. In addition, whether the surface of the indoor heat exchanger 50 produces condensate water and whether the water pan 20 has water are key factors affecting the state of the water pan 20. If the surface of the indoor heat exchanger 50 does not produce condensate water, but the water pan 20 still has condensate water, at this time, the first state of the water pan 20 needs to be maintained to avoid the water in the water pan 20 flowing into the room through the air inlet 101 and affecting the user's experience. Therefore, when the air conditioner is running in the cooling mode, according to the three factors of the dew point temperature, the coil temperature and the water information in the water pan 20, the state of the water pan 20 is controlled, which can improve the control accuracy.

[0095] As shown in the Figure 9 some optional embodiments of the present application, in step S211, the obtaining of the dew point temperature includes:

[0096] S2111, obtaining an indoor environment temperature and an indoor environment humidity;

[0097] S2112, obtaining the dew point temperature according to the indoor environment temperature and the indoor environment humidity.

[0098] The embodiment provides a method for obtaining a dew point temperature, and the above method has high accuracy and wide measurement range.

[0099] In some optional embodiments of the present application, step S2112 specifically includes: calculating the dew point temperature according to the following formula:

[0100]

[0101] Where t is the dew point temperature; Tao is the indoor ambient temperature; RH is the indoor ambient humidity; a is the first preset value; and b is the second preset value.

[0102] Specifically, while there is only one algorithm for calculating the dew point temperature, other algorithms can also be used. For example, in some embodiments, a can be 17.23 and b can be 237.7.

[0103] like Figure 10 As shown, in some optional embodiments of the present invention, step S212, controlling the state of the water receiving tray 20 based on the dew point temperature, coil temperature, and water information in the water receiving tray 20, may include the following specific steps:

[0104] S2121, determine whether the first condition is met. The first condition is that the dew point temperature is less than or equal to the coil temperature and there is no water in the water receiving pan 20. If yes, proceed to S2122; if no, proceed to S2123.

[0105] S2122, control the water receiving tray 20 to execute the second state;

[0106] S2123, after controlling the water tray 20 to maintain the first state and controlling the air conditioner to run in cooling mode for a first preset time, the steps of obtaining dew point temperature, coil temperature and water information in the water tray 20 are executed again.

[0107] Specifically, during the cooling operation of the air conditioner: when the dew point temperature is less than or equal to the coil temperature and there is no water in the drip tray 20, the drip tray 20 is controlled to enter the second state to increase the effective air intake area. When the dew point temperature is greater than the coil temperature, or there is water in the drip tray 20, the drip tray 20 is controlled to enter the first state to collect the condensate flowing down from the evaporator; and after the air conditioner has been running for a first preset time, S211 and S212 are executed again to achieve precise control of the state of the drip tray 20, thereby maximizing the effective air intake area of ​​the air inlet 101 while ensuring the water collection function. The first preset time can be set according to the model of the air conditioner, for example, the first preset time can be 20 minutes.

[0108] In some optional embodiments of the present invention, step S211 is executed after S103 and after the air conditioner has been running in cooling mode for a first preset period of time. Alternatively, step S211 is executed immediately after S103. Of the two methods described above, the first method can improve the accuracy of the judgment in step S2121, thereby avoiding misjudgment when the air conditioner is first turned on.

[0109] like Figure 7As shown in some optional embodiments of the present application, step S200 comprises the following step: S220, when the air conditioner is running in the heating mode, controlling the state of the water pan 20 according to a second control strategy.

[0110] In some optional embodiments of the present application, the second control strategy specifically comprises: controlling the water pan 20 to execute a second state.

[0111] As shown in some optional embodiments of the present application, the second control strategy specifically comprises the following steps: Figure 11

[0112] S221, obtaining water information in the water pan 20;

[0113] S222, controlling the state of the water pan 20 according to the water information in the water pan 20.

[0114] Since the surface of the indoor heat exchanger 50 will not generate condensate water when the air conditioner is running in the heating mode. Therefore, when the air conditioner is running in the heating mode, controlling the state of the water pan 20 according to the water information in the water pan 20 can avoid the residual water in the water pan 20 from falling to the indoor to affect the user's experience.

[0115] As shown in some optional embodiments of the present application, the second control strategy specifically comprises the following steps: Figure 12

[0116] S2221, judging whether a second condition is met, the second condition being that the water pan 20 has no water; if yes, executing S2222; if no, executing S2223;

[0117] S2222, controlling the water pan 20 to execute the second state;

[0118] S2223, controlling the water pan 20 to maintain the first state, and after the air conditioner runs in the heating mode for a second preset time length, executing S221 again.

[0119] Specifically, when the air conditioner is running in the heating mode: if the water pan 20 has no water, the water pan 20 is controlled to execute the second state. If the water pan 20 has water, the water pan 20 is controlled to maintain the first state, and after the air conditioner continues to run in the heating mode for a second preset time length, S221 is executed again to realize timely adjustment of the state of the water pan 20, so as to increase the effective air inlet area of the air inlet 101 as much as possible when the water pan 20 is not working. The second preset time length can be set according to the model of the air conditioner, for example, the second preset time length can be 10 min.

[0120] ​​Preferably, S2223 further comprises: starting the drainage device to drain the water in the water pan 20, so as to timely adjust the state of the water pan 20 and avoid the water pan 20 from shielding the air inlet 101, while the water pan 20 is controlled to maintain the first state.

[0121] In some optional embodiments of the present application, the water pan 20 comprises a pan bottom 21 and a pan wall 22 arranged around the pan bottom 21. The pan bottom 21 comprises a plurality of swing pages 221, which are arranged to be horizontally arranged and sequentially connected to form a water receiving space with the pan wall 22 in the first state, and are arranged to be turned down to a vertical position to form an air flow channel 30 between adjacent swing pages 221 to open the water pan 20 in the second state. A float switch is arranged in the water pan 20, and the on-off of the float switch is represented by a constant k. When k = 1, the water pan 20 is waterless.

[0122] The control method of the air conditioner can comprise the following steps:

[0123] S1, obtaining the indoor environment temperature and the set temperature;

[0124] S2, determining whether the set temperature is less than the indoor environment temperature; if yes, performing S31; if no, performing S41;

[0125] S31, controlling the air conditioner to run in cooling mode for 20 min;

[0126] S32, obtaining the indoor environment temperature and the indoor environment humidity;

[0127] S33, calculating the current dew point temperature according to the current indoor environment temperature and the indoor environment humidity;

[0128] S34, obtaining the K value and the coil temperature;

[0129] S35, determining whether the condition of “dew point temperature less than or equal to coil temperature, and k = 1” is met; if yes, performing S36; if no, performing S31;

[0130] S36, controlling each swing page 221 to be turned down to be vertically arranged;

[0131] S41, obtaining the K value;

[0132] S42, determining whether the condition of “k = 1” is met; if yes, performing S43; if no, performing S44;

[0133] S43, controlling each swing page 221 to be turned down to be vertically arranged;

[0134] S44, controlling the air conditioner to run in cooling mode for 10 min, and then performing S41.

[0135] The control method of the embodiment can adjust the water pan 20 in real time according to the operation mode of the air conditioner, the indoor environment, and the water information in the water pan 20, so as to open the water pan 20 when the water pan 20 is not working, and increase the effective air inlet area of the air inlet 101.

[0136] At this point, those skilled in the art should recognize that although the present application has been fully illustrated and described herein with reference to a number of exemplary embodiments, many other variations or modifications can be directly determined or deduced from the disclosure of the present application in accordance with the principles of the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all such other variations or modifications.

Claims

1. An air conditioner, characterized in that, include: The housing has an air inlet at its lower part; A water collection tray is movably disposed at the air inlet. The water collection tray has a first state and a second state. In the first state, the water collection tray partially blocks the air inlet to collect condensate. In the second state, the water receiving tray opens the air inlet; as well as The air conditioner is configured to control the state of the water tray according to a control strategy corresponding to the operating mode of the air conditioner. The water receiving tray includes a tray bottom and tray walls surrounding the tray bottom; The bottom of the pan includes multiple flaps, configured such that in the first state, each flap is horizontally arranged and connected in sequence to form a water-receiving space with the pan wall; in the second state, each flap is inclined or vertically arranged, and an airflow channel is formed between adjacent flaps to open the air inlet.

2. The air conditioner according to claim 1, characterized in that, Also includes: A driving device, which is connected to a water receiving tray, is used to drive the water receiving tray to switch between a first state and a second state.

3. The air conditioner according to claim 2, characterized in that, The water receiving tray also includes a rotating shaft, and each of the flaps is connected to a rotating shaft, with the rotating shafts arranged in parallel at intervals. The driving device includes: An electric motor, the electric motor being configured to drive one of the rotating shafts to rotate; A transmission belt is fitted onto the ends of the plurality of said rotating shafts and configured to drive the plurality of said rotating shafts to rotate synchronously.

4. A control method for an air conditioner, characterized in that, The air conditioner is the air conditioner as described in any one of claims 1-3, and the control method includes: Obtain the operating mode of the air conditioner; The state of the water tray is controlled according to the control strategy corresponding to the operating mode of the air conditioner.

5. The control method according to claim 4, characterized in that, The control of the state of the water tray according to the control strategy corresponding to the operating mode of the air conditioner includes: when the air conditioner is operating in cooling mode, controlling the state of the water tray according to the first control strategy; The first control strategy includes: Acquire dew point temperature, coil temperature, and water information in the drip tray; The state of the water receiving tray is controlled based on the dew point temperature, the coil temperature, and the water information in the water receiving tray.

6. The control method according to claim 5, characterized in that, The method for obtaining the dew point temperature includes: Obtain indoor ambient temperature and humidity; The dew point temperature is obtained based on the indoor ambient temperature and the indoor ambient humidity.

7. The control method according to claim 5, characterized in that, The method of controlling the state of the water receiving tray based on the dew point temperature, the coil temperature, and the water information in the water receiving tray includes: Determine whether the first condition is met: the dew point temperature is less than or equal to the coil temperature, and there is no water in the water receiving tray; If so, then control the water receiving tray to execute the second state; If not, the water tray is controlled to maintain the first state, and after the air conditioner has been running in cooling mode for a first preset time, the steps of obtaining the dew point temperature, coil temperature and water information in the water tray are executed again.

8. The control method according to claim 5, characterized in that, The control of the state of the water tray according to the control strategy corresponding to the operating mode of the air conditioner includes: when the air conditioner is operating in heating mode, controlling the state of the water tray according to the second control strategy; The second control strategy includes: Obtain water information from the water receiving tray; The state of the water receiving tray is controlled based on the water information in the tray.

9. The control method according to claim 8, characterized in that, The method of controlling the state of the water receiving tray based on the water information in the tray includes: Determine whether the second condition is met: there is no water in the water receiving tray; If so, then control the water receiving tray to execute the second state; If not, the water tray is kept in the first state, and after the air conditioner has been running in heating mode for a second preset time, the step of obtaining water information in the water tray is executed again.

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