Control method of air conditioner

Abstract

The application provides a control method of an air conditioner. The control method of the air conditioner comprises the following steps: judging whether a condensation area needs to be decondensed; moving a second air outlet column from an initial position to a preset position, and rotating the second air outlet column around a vertical axis at the preset position to align the second air outlet with the first air outlet; stopping the first air outlet from delivering refrigeration airflow outward, and making the second air outlet deliver airflow outward, wherein the airflow delivered by the second air outlet enters the first air outlet and flows through the condensation area on the first air outlet column; and the temperature of the airflow delivered by the second air outlet is higher than that of the airflow delivered by the first air outlet. The condensation of the condensation area can be prevented or removed, the degree of intelligence and wisdom is high, the moisture on the evaporator and the dust on the filter screen at the air inlet can be taken away, the air resistance at the air inlet is reduced, the load of the fan is reduced, and the air conditioner has an energy-saving effect.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to a control method for an air conditioner. Background Technology

[0002] Existing vertical air conditioner indoor units typically have a vertical strip-shaped air outlet on the front of the casing, using an air guide device to oscillate the air vertically and horizontally. With technological advancements, users not only expect faster cooling and heating speeds from air conditioners but also increasingly focus on comfort performance. Therefore, some existing technologies have made numerous improvements to the air outlet structure, such as blowing out soft air, fresh air, and humidified airflow. The inventors discovered that vertical air conditioner indoor units often have condensation areas, also known as condensation-prone areas, such as the air outlet where cold air is blown out. Summary of the Invention

[0003] The purpose of this invention is to overcome or at least partially solve the above problems by providing a control method for an air conditioner that can prevent or remove condensation in the condensation area, while also removing moisture from the heat exchanger and dust from the filter screen at the air inlet.

[0004] Specifically, the present invention provides a control method for an air conditioner, the air conditioner including an indoor unit, characterized in that the indoor unit includes a first air outlet column and a second air outlet column; the first air outlet column and the second air outlet column are arranged laterally; a first air outlet is provided on the front side of the first air outlet column; a second air outlet is provided on the front side of the second air outlet column; the indoor unit has a condensation area; the control method for the air conditioner includes:

[0005] Determine whether the condensation area needs decondensation;

[0006] When condensation needs to be removed from the condensation area, the second air outlet column is moved from its initial position to a preset position, and at the preset position, the second air outlet column is rotated around the vertical axis so that the second air outlet is aligned with the first air outlet; at the same time, the first air outlet stops supplying cooling airflow outward, and the second air outlet is in a state of supplying airflow outward. The airflow flowing out of the second air outlet enters the first air outlet and flows through the condensation area on the first air outlet column; the temperature of the airflow flowing out of the second air outlet is higher than the temperature of the airflow flowing out of the first air outlet.

[0007] Optionally, the control method for the air conditioner further includes:

[0008] Determine whether the indoor unit of the air conditioner is in the cooling process;

[0009] If the indoor unit of the air conditioner is in the cooling process, determine whether the condensation area needs to be decondensed.

[0010] Optionally, the control method of the air conditioner further comprises:

[0011] detecting the ambient temperature, the ambient humidity and the temperature of the condensation area;

[0012] judging whether the condensation area needs to be decondensed according to the ambient temperature, the ambient humidity and the temperature of the condensation area.

[0013] Optionally, the control method of the air conditioner further comprises:

[0014] detecting the ambient temperature, the ambient humidity, the temperature of the condensation area and the refrigeration time of the air conditioner indoor unit; judging whether the condensation area needs to be decondensed according to the ambient temperature, the ambient humidity, the temperature of the condensation area and the refrigeration time of the air conditioner indoor unit; or,

[0015] detecting the ambient humidity and the temperature of the condensation area; judging whether the condensation area needs to be decondensed according to the ambient humidity and the temperature of the condensation area.

[0016] Optionally, the control method of the air conditioner further comprises:

[0017] judging whether the air conditioner indoor unit receives an instruction to end refrigeration;

[0018] if the air conditioner indoor unit receives the instruction to end refrigeration, ending refrigeration, moving the second air outlet column from the initial position to the preset position, and rotating the second air outlet column around the vertical axis at the preset position to align the second air outlet with the first air outlet, and to make the second air outlet in the state of conveying air flow outward.

[0019] Optionally, the control method of the air conditioner further comprises:

[0020] the condensation area is located near the first air outlet; or,

[0021] a first air guide member for guiding the lateral air outlet direction of the first air outlet is installed on the first air outlet column; the first air guide member comprises one or more first air guide plates arranged in rotation along the vertical direction; the condensation area is located on the first air guide plate, or the condensation area is located near the first air outlet and on the first air guide plate.

[0022] Optionally, the control method of the air conditioner further comprises:

[0023] judging whether the second air outlet column is in the initial position;

[0024] detecting a flow rate of the airflow flowing out of the second air outlet when the second air outlet column is in the initial position;

[0025] rotating the second air outlet column when the flow rate of the airflow flowing out of the second air outlet reaches a preset value; the vertical axis passes through the second air outlet column, and the vertical axis is spaced apart from the second air outlet.

[0026] Optionally, the control method of the air conditioner further comprises:

[0027] the rear side of the first air outlet column is provided with a first air inlet communicating with the first air outlet, and the first air inlet is provided with a first dust filter screen;

[0028] the rear side of the second air outlet column is provided with a second air inlet communicating with the second air outlet, and the second air inlet is provided with a second dust filter screen;

[0029] the control method of the air conditioner further comprises: judging whether the second dust filter screen needs to be cleaned; when the second dust filter screen needs to be cleaned, moving the second air outlet column from the initial position to the preset position, and rotating the second air outlet column around the vertical axis at the preset position to align the second air outlet with the first air outlet; at the same time, making the second air outlet in a state of no airflow outwardly conveying, and making the first air outlet in a state of outwardly conveying airflow;

[0030] when the condensation area needs to be dehumidified, and when the second dust filter screen needs to be cleaned, first making the second air outlet outwardly conveying airflow, and then making the first air outlet outwardly conveying airflow; or alternately making the second air outlet outwardly conveying airflow and making the first air outlet outwardly conveying airflow.

[0031] Optionally, the first air outlet is in the shape of a vertical bar, and the second air outlet is in the shape of a vertical bar;

[0032] when the second air outlet column is at the initial position, the first air outlet column and the second air outlet column are arranged in a transverse direction, the first air outlet faces forward and faces the second air outlet column, and the second air outlet faces forward and faces the first air outlet column;

[0033] the ratio of the transverse width of the second air outlet column to the transverse width of the first air outlet column is less than 1 / 2; the ratio of the longitudinal depth of the second air outlet column in the front-rear direction to the longitudinal depth of the first air outlet column in the front-rear direction is less than 1 / 2; the second air outlet column is located on one side of the front half of the first air outlet column in the transverse direction; when the second air outlet column is at the initial position, the airflow flowing out of the first air outlet and the airflow flowing out of the second air outlet can be mixed;

[0034] The second air outlet column forms an air guiding interval with the first air outlet column when at the initial position, so that when air is blown out from the first air outlet and / or the second air outlet, the air in the air guiding interval is driven to flow forward by the negative pressure effect.

[0035] Optionally, the air conditioner indoor unit further comprises a functional module, an outlet of the functional module being in communication with the upper end or the lower end of the second air outlet column, the functional module not working when dehumidification is needed in the dehumidification area or when dust removal is needed in the second dust filter screen; the functional module being one or more of fresh air device, oxygen adding device, purification device, humidifying device and water washing device.

[0036] In the control method of the air conditioner, the first air outlet column blows out a heat exchange air flow, the second air outlet column blows out a non-heat exchange air flow, the heat exchange air flow and the non-heat exchange air flow can be mixed after being blown out to form a mixed air flow, the temperature of the mixed air flow is closer to the room temperature than that of the heat exchange air flow, the comfort is higher, the wind feeling is softer, the air volume and the air speed are increased, the air supply distance is farther, and the air flow flowing out of the second air outlet can be better diffused to all parts of the room. The air flow flowing out of the first air outlet and the air flow flowing out of the second air outlet can also be blown separately or not mixed and blown separately. In particular, by moving and rotating the second air outlet column, when the first column shell needs to remove condensation, the second air outlet can be aligned with the first air outlet, and then the non-heat exchange air flow enters the first air outlet to remove the condensation at the first air inlet. Special equipment is no longer needed for dehumidification, the cost is low, the degree of intelligence and wisdom is high. Dust on the filter screen at the first air inlet can also be removed, the air resistance at the air inlet is reduced, the load of the fan is reduced, and the air conditioner has an energy saving effect.

[0037] The above and other objects, advantages and features of the present application will become more apparent from the following detailed description of some embodiments thereof, when taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0038] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. The same reference numbers in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0039] Figure 1 is a schematic front view of an air conditioner indoor unit of an air conditioner according to an embodiment of the present application;

[0040] Figure 2 is a schematic top view of the air conditioner indoor unit shown in Figure 1

[0041] Figure 3 is a schematic front view of the air conditioner indoor unit shown in Figure 1 ​A schematic state reference diagram of the air conditioner indoor unit shown in FIG. 1 is shown in FIG. 2.

[0042] Figure 4 is Figure 1 A schematic state reference diagram of the air conditioner indoor unit shown in FIG. 1 is shown in FIG. 2.

[0043] Figure 5 is Figure 1 A schematic state reference diagram of the air conditioner indoor unit shown in FIG. 1 is shown in FIG. 2.

[0044] Figure 6 is Figure 1 A schematic state reference diagram of the air conditioner indoor unit shown in FIG. 1 is shown in FIG. 2.

[0045] Figure 7 is Figure 1 A schematic state reference diagram of the air conditioner indoor unit shown in FIG. 1 is shown in FIG. 2.

[0046] Figure 8 is a schematic flow chart of a control method of an air conditioner according to an embodiment of the present application;

[0047] Figure 9 A schematic state reference diagram of an air conditioner indoor unit according to an embodiment of the present application is shown in FIG. 2. DETAILED DESCRIPTION

[0048] The control method of an air conditioner according to an embodiment of the present application is described below. Figures 1 to 9 The control method of an air conditioner according to an embodiment of the present application is described below.

[0049] The terms "first", "second", and the like, are used only for the purpose of description, and should not be construed as indicating or implying relative importance or implying the number of the technical features indicated. Thus, the features defined with "first", "second", and the like, can explicitly or implicitly include at least one of the features, i.e., one or more of the features. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, and the like, unless otherwise specifically limited. When a certain feature "includes or comprises" a certain or certain features, unless otherwise specifically described, this indicates that other features are not excluded and can further include other features.

[0050] Unless otherwise defined, the terms "mounting", "connected", "connecting", "fixed", "coupling" and the like are to be construed in a broad sense, 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 of two elements, unless otherwise explicitly defined. Those skilled in the art should be able to understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0051] Figure 1 is a schematic front view of an air conditioner indoor unit according to an embodiment of the present application, as Figure 1 shown, and referring to Figures 2 to 7 , the embodiment of the present application provides an air conditioner indoor unit, which comprises a first air outlet column 10 and a second air outlet column 20.

[0052] The first air outlet column 10 is in a vertical column shape, and a first air outlet 11 for blowing air flow is arranged on the front side of the first air outlet column 10, and the first air outlet 11 is in a vertical strip shape. A first air inlet 13 is arranged on the rear side of the first air outlet column 10 and communicates with the first air outlet 11. The first air inlet 13 is provided with a first dust filter screen. The second air outlet column 20 is in a vertical column shape, and a second air outlet 21 for blowing air flow is arranged on the front side of the second air outlet column 20, and the second air outlet 21 is in a vertical strip shape. When the second air outlet column 20 is in an initial position, the first air outlet column 10 and the second air outlet column 20 are arranged in a transverse direction, and the left-right direction perpendicular to the front-rear direction of the air conditioner indoor unit is the "transverse direction".

[0053] Specifically, the air flow flowing out of the first air outlet 11 is a heat exchange air flow. The "heat exchange air flow" refers to the air flow that has completed heat exchange with the heat exchanger 14 of the air conditioner and is used to adjust the indoor temperature. The heat exchanger 14 is connected to the compressor, the heat exchanger of the outdoor unit, the throttling device and other refrigeration elements through pipelines to form a vapor compression refrigeration cycle system. When the air conditioner indoor unit is in a cooling mode, the heat exchange air flow is cold air. When the air conditioner indoor unit is in a heating mode, the heat exchange air flow is hot air. The heat exchange air flow is blown to the indoor environment through the first air outlet 11 to complete the cooling and heating of the indoor environment. The air flow flowing out of the second air outlet 21 is a non-heat exchange air flow, which is used to assist in adjusting the indoor environment. When the air conditioner indoor unit according to the embodiment of the present application is running, the first air outlet column 10 and the second air outlet column 20 can be opened alternately or simultaneously.

[0054] In this embodiment of the invention, the second air outlet column 20 is movably disposed and rotatably disposed about a vertical axis. For example, the second air outlet column 20 can be moved and rotated by a driving device. The driving device is configured to at least move the second air outlet column 20 from an initial position to a preset position and rotate the second air outlet column 20 about a vertical axis so that the second air outlet 21 is aligned with the first air outlet 11 when it is in the preset position, thereby allowing the airflow exiting the first air outlet 11 to enter the second air outlet column 20 through the second air outlet 21, or allowing the airflow exiting the second air outlet 21 to enter the first air outlet column 10 through the first air outlet 11, such as... Figure 3 As shown. In some alternative embodiments of the invention, the second air outlet column 20 may also be in other positions when it is in the initial position, such as... Figure 4 The locations shown are as indicated.

[0055] Figure 8 This is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention; as shown... Figure 8 As shown, this embodiment of the invention provides a control method for an air conditioner, including: determining whether a condensation area needs decondensation; when decondensation is needed, causing the driving device to move the second air outlet column 20 from an initial position to a preset position, and at the preset position, causing the second air outlet column 20 to rotate around a vertical axis so that the second air outlet 21 is aligned with the first air outlet 11, while simultaneously stopping the first air outlet 11 from supplying cooling airflow outward, so that the second air outlet 21 is in a state of supplying airflow outward. This embodiment of the invention automatically determines whether a condensation area needs decondensation, and when decondensation is needed, causes the second air outlet column 20 to move and rotate to a preset position, allowing non-heat exchange airflow to enter the first air outlet 11, blowing air onto the condensation area formed near the first air outlet 11, inside the first air outlet column, or the air guide plate, thereby removing the condensation in the condensation area. When the airflow flowing out of the second air outlet 21 enters the first air outlet column 10 through the first air outlet 11, the airflow can also carry away the moisture on the heat exchanger 14 and the dust on the first dust filter screen at the first air inlet 13.

[0056] In some embodiments of the present invention, the control method of the air conditioner further includes: determining whether the indoor unit of the air conditioner is in the cooling process; if the indoor unit of the air conditioner is in the cooling process, determining whether the condensation area needs to be decondensed. This decondensation action is mainly performed during the air conditioning cooling process. Further, the control method of the air conditioner also includes: determining whether the indoor unit of the air conditioner receives a command to end cooling; if the indoor unit of the air conditioner receives a command to end cooling, ending cooling, aligning the second air outlet with the first air outlet, and simultaneously placing the second air outlet in a state of outward airflow. After cooling is completed, it is necessary to prevent condensation from remaining in the condensation area for an extended period and to prevent moisture from remaining on the evaporator for an extended period.

[0057] In some embodiments of the present application, the control method of the air conditioner further comprises: detecting the ambient temperature, the ambient humidity and the temperature of the condensation area; and determining whether the condensation area needs to be de-condensed according to the ambient temperature, the ambient humidity and the temperature of the condensation area. In some alternative embodiments, the control method of the air conditioner further comprises: detecting the ambient temperature, the ambient humidity, the temperature of the condensation area and the refrigeration time of the indoor unit of the air conditioner; and determining whether the condensation area needs to be de-condensed according to the ambient temperature, the ambient humidity, the temperature of the condensation area and the refrigeration time of the indoor unit of the air conditioner. In some other alternative embodiments, the control method of the air conditioner further comprises: detecting the ambient humidity and the temperature of the condensation area; and determining whether the condensation area needs to be de-condensed according to the ambient humidity and the temperature of the condensation area.

[0058] Further, when the de-condensation of the condensation area is finished, the second air outlet column 20 is moved to the initial position. Wherein, the time length that the second air outlet column 20 stays at the preset position is detected; and when the time length is greater than a time length preset value, the de-condensation of the condensation area is finished.

[0059] In some embodiments of the present application, further, the second air outlet column 20 can have at least three positions to meet different air supply requirements. For example, the driving device comprises a track and a sliding block arranged on the track, and the second air outlet column is rotatably installed on the sliding block. The second air outlet column 20 can stay at any position on the track, as shown in FIG. 5, and can also be rotated. Figures 3 to 7

[0060] Further, the track 50 comprises a first track segment 51 and a second track segment 52. The first track segment 51 extends along the transverse direction and is arranged on the front side of the first air outlet column 10. The front end of the second track segment 52 is connected to one end of the first track segment 51 close to the second air outlet column 20, and the second track segment 52 extends from the front end thereof to the rear end thereof obliquely rearward and away from the first air outlet column 10; and the preset position is the connection between the first track segment 51 and the second track segment 52. In some alternative embodiments of the present application, the two ends of the track are connected to form a circle around the first air outlet column 10, such as a circle coaxial with the rotation axis of the heat exchange fan 15.

[0061] ​In some embodiments of the present application, the second air outlet column 20 has at least two relative positions with respect to the first air outlet column 10. For example, the second air outlet column 20 also has a position in the flow direction of the air flow flowing out of the first air outlet 11, so as to shield the first air outlet 11 and prevent the first air outlet 11 from directly blowing. For another example, the second air outlet column 20 also has a position between the first air outlet 11 and the user position, so as to shield the first air outlet 11 and prevent the air flow blown out of the first air outlet 11 from directly blowing the person at the user position. Further, the user position can be detected by the human sensing, and then the second air outlet column 20 is controlled to move to the position between the user position and the first air outlet 11. For yet another example, the second air outlet 21 can be rotated to a position aligned with the first air inlet 13, or the second air inlet 23 can be rotated to a position aligned with the first air outlet 11.

[0062] In some embodiments of the present application, when the second air outlet column is in the initial position, the first air outlet 11 faces forward and the second air outlet column 20, i.e. the first air outlet 11 faces obliquely forward, and the second air outlet 21 faces forward and the first air outlet column 10, i.e. the second air outlet 21 faces obliquely forward. Further, the rear side edge of the second air outlet 21 is in front of the rear side edge of the first air outlet 11, and the front side edge of the second air outlet 21 is behind the front side edge of the first air outlet 11. The front side of the first air outlet column 10 is provided with a display device 18, which is on the side of the first air outlet 11 facing away from the second air outlet 21.

[0063] In some embodiments of the present application, the first air outlet column 10 is provided with a first air guide for guiding the lateral air outlet direction of the first air outlet 11. The first air guide can include a plurality of first air guide plates 12. "Guiding the lateral air outlet direction" means changing the included angle between the air outlet direction and the front-rear direction, such as making the air flow blow straight forward, blow left forward, blow right forward, etc. The second air outlet column 20 is provided with a second air guide for guiding the lateral air outlet direction of the second air outlet 21. The second air guide can include a plurality of second air guide plates 22. The main control board of the air conditioner can be electrically connected with the motors of the first air guide and the second air guide at the same time, so as to control the two to act in coordination.

[0064] In particular, when the second air outlet 21 is aligned with the first air outlet 11, the first air guide plate 12 is perpendicular to the plane where the first air outlet 11 is located, and the first air guide plate 12 and the second air guide plate 22 can be parallel, guiding the air flow flowing out of the first air outlet 11 to flow toward the second air outlet 21 or guiding the air flow flowing out of the second air outlet 21 to flow toward the first air outlet 11.

[0065] In some embodiments of the present application, the number of the first air deflectors 12 is at least two, the rotation axis of the last side first air deflector 12 is located at the rear side edge of the first air outlet, or the distance between the rotation axis of the last side first air deflector 12 and the rear side edge of the first air outlet is smaller than the distance between the rotation axis of the last side first air deflector 12 and the front side edge of the first air outlet. The rotation axis of the last side second air deflector 22 is located at the rear side edge of the second air outlet, or the distance between the rotation axis of the last side second air deflector 22 and the rear side edge of the second air outlet is smaller than the distance between the rotation axis of the last side second air deflector 22 and the front side edge of the second air outlet; the number of the second air deflectors 22 is one. Preferably, the number of the first air deflectors 12 is two. The number of the second air deflectors 22 is one.

[0066] In some embodiments of the present application, the lower end or the upper end of the second air outlet column 20 is rotatably arranged around a horizontal axis perpendicular to the plane where the first air outlet 11 is located, so that the second air outlet column 20 can be rotated to the front of the first air outlet 11 to block part of the area of the first air outlet 11. As shown in the figure, the second air outlet column 20 can also be arranged obliquely, so that the second air outlet column 20 can block part of the area of the first air outlet 11, such as the area with the highest temperature, the lowest temperature, etc., so as to make the air outlet temperature of the first air outlet 11 more uniform, improve the comfort of the user, and of course, the blocking can also be performed according to the needs of the user to improve the user experience. Figure 9

[0067] Further, the air conditioner indoor unit further comprises a plurality of temperature sensors arranged in sequence along the vertical direction at the first air outlet 11 to detect the air outlet temperature at a plurality of parts of the first air outlet 11, and then the second air outlet column 20 is rotated to the front side of the area of the first air outlet 11 corresponding to the corresponding air outlet temperature according to the air outlet temperature. Specifically, the first air outlet 11 is divided into six areas, and the air outlet temperature of the six areas is detected by six temperature sensors respectively. When heating, the second air outlet column 20 is rotated to the front side of the area of the first air outlet 11 corresponding to the lowest air outlet temperature; when cooling, the second air outlet column 20 is rotated to the front side of the area of the first air outlet 11 corresponding to the highest air outlet temperature.

[0068] In some embodiments of the present application, as shown in the figure, when the second air outlet column 20 is in the initial position, the air flow out of the first air outlet 11 and the air flow out of the second air outlet 21 can be mixed. The air flow out of the second air outlet 21 can be a non-heat exchange air flow, and the air flow out of the first air outlet 11 and the air flow out of the second air outlet 21 can be mixed after being blown out to form a mixed air flow. The temperature of the mixed air flow is closer to room temperature than that of the heat exchange air flow, the comfort is higher, the wind feeling is softer, the air volume and air speed are increased, the air supply distance is farther, and the air flow out of the second air outlet 21 can be better diffused to various places in the room. Figure 4 In some embodiments of the present application, as shown in the figure, when the second air outlet column 20 is in the initial position, the air flow out of the first air outlet 11 and the air flow out of the second air outlet 21 can be mixed. The air flow out of the second air outlet 21 can be a non-heat exchange air flow, and the air flow out of the first air outlet 11 and the air flow out of the second air outlet 21 can be mixed after being blown out to form a mixed air flow. The temperature of the mixed air flow is closer to room temperature than that of the heat exchange air flow, the comfort is higher, the wind feeling is softer, the air volume and air speed are increased, the air supply distance is farther, and the air flow out of the second air outlet 21 can be better diffused to various places in the room.​

[0069] In some embodiments of the present application, as shown in Figure 2 At the initial position of the second air outlet column, the second air outlet column 20 and the first air outlet column 10 form an air guiding interval 16, so that when the first air outlet 11 and / or the second air outlet 21 blows air, the air in the air guiding interval 16 is driven to flow forward by the negative pressure. The air guiding interval 16 is formed between the first air outlet column 10 and the second air outlet column 20. In this way, when the first air outlet column 10 and / or the second air outlet column 20 blows air, a negative pressure environment is formed at the air guiding interval 16, which promotes the indoor air behind the indoor unit to flow forward through the air guiding interval 16 to mix into the air flow of the first air outlet column 10 or the second air outlet column 20, which makes the mixing amount of indoor air larger and the mixing speed faster, forming a stronger air mixing effect. The temperature of the mixed air flow is closer to the room temperature than that of the heat exchange air flow, which is more comfortable, the wind feeling is softer, and the air volume and air speed are increased, and the air supply distance is farther.

[0070] In some embodiments of the present application, as shown in Figure 1 The first air outlet 11 and the second air outlet 21 can be a whole vertical bar extending from top to bottom, or can be composed of a plurality of sub-air outlets arranged vertically in an intermittent vertical bar shape.

[0071] In some embodiments of the present application, since the second air outlet column 20 does not need to be provided with a heat exchanger 14, the second air outlet column 20 can be designed to be thinner, which is significantly thinner than the first air outlet column 10. This asymmetric design not only meets the air outlet needs, but also makes the appearance of the air conditioner indoor unit more novel and unique, improving the competitiveness of the product.

[0072] For example, as shown in Figures 2 to 7 The ratio of the width of the second air outlet column 20 to the width of the first air outlet column 10 in the transverse direction is less than 1 / 2. The ratio of the longitudinal depth of the second air outlet column 20 to the longitudinal depth of the first air outlet column 10 in the front-rear direction is less than 1 / 2, so as to form a double-column differentiated appearance. At the initial position of the second air outlet column, the front-rear positions of the second air outlet 21 and the first air outlet 11 can be flush or substantially flush, for example, the front-rear distance of the two is not more than 10 cm, so that the non-heat exchange air flow and the heat exchange air flow are better mixed. That is, the second air outlet column 20 is mainly located on one side of the first air outlet column 10 in the transverse direction of the front half; or in other words, the second air outlet column 20 is mostly or entirely located on one side of the first air outlet column 10 in the transverse direction of the front half.

[0073] In some embodiments of the present application, as shown in Figure 2As shown, the first air outlet column 10 is provided with a heat exchanger 14 and a heat exchange fan 15, the heat exchange fan 15 flows the heat exchange airflow after the heat exchanger 14 from the first air outlet 11, at this time, the airflow flowing out of the first air outlet 11 is the heat exchange airflow. The heat exchange fan is preferably a cross-flow fan, and in some alternative embodiments, the heat exchange fan 15 can be a plurality of axial flow fans or centrifugal fans arranged in the up-down direction.

[0074] In some embodiments of the present application, as shown in Figure 2 As shown, the rear side of the second air outlet column 20 is provided with a second air inlet 23 communicating with the second air outlet 21. The second air outlet column 20 is provided with a vertical strip-shaped air duct, which communicates with the second air inlet 23 and the second air outlet 21. The air duct is provided with a first fan 31, the first fan 31 makes the airflow enter the air duct from the second air inlet 23, and then flow out of the first air outlet 11; the first fan 31 is a cross-flow fan.

[0075] Further, the second air inlet 23 has a second dust filter screen; the control method of the air conditioner further comprises: judging whether the second dust filter screen needs to be cleaned; when the second dust filter screen needs to be cleaned, aligning the second air outlet with the first air outlet, and at the same time, making the second air outlet 21 in a state of no airflow outwardly conveying, and making the first air outlet 11 in a state of conveying airflow outwardly. The embodiment of the present application can also clean the filter screen arranged at the second air inlet 23, improving the practicability.

[0076] The method for judging whether the second dust filter screen needs to be cleaned is to detect the amount of impurities on the second dust filter screen; when the amount of impurities is greater than a preset impurity amount, it is determined that the second dust filter screen needs to be cleaned. Alternatively, the working time length of the second dust filter screen is detected; when the working time length is greater than a preset time length, it is determined that the second dust filter screen needs to be cleaned.

[0077] In some embodiments of the present application, when the condensation area needs to be dehumidified and the second dust filter screen needs to be cleaned, the second air outlet 21 is first made to convey airflow outwardly until the dehumidification of the condensation area is completed, and then the first air outlet 11 is made to convey airflow outwardly. In some alternative embodiments of the present application, when the condensation area needs to be dehumidified and the second dust filter screen needs to be cleaned, the second air outlet 21 is made to convey airflow outwardly and the first air outlet 11 is made to convey airflow outwardly alternately.

[0078] In some embodiments of the present application, the air conditioner indoor unit further comprises a functional module 40. The functional module 40 is configured to process the gas flowing therethrough or add substances to the gas flow, and the functional module 40 is matched with the second air outlet column 20. The outlet of the functional module 40 is in communication with the upper end or the lower end of the air duct, or the outlet of the functional module 40 is in communication with the second air inlet 23. When the condensation area needs to be dehumidified and the second dust filter needs to be cleaned, the functional module 40 does not work. Of course, the functional module 40 can also work when the condensation area needs to be dehumidified.

[0079] The functional module 40 is one or more of a fresh air device, an oxygen adding device, a purification device, a humidifying device, and a water washing device. When the outlet of the functional module 40 is in communication with the second air inlet 23, the corresponding non-heat exchange gas flow is one or more of a fresh air flow, a purified air flow, a humidified air flow, an oxygenated air flow, and a water washed air flow. When the outlet of the functional module 40 is in communication with the upper end or the lower end of the air duct, the corresponding non-heat exchange gas flow is one or more of a fresh air flow, a purified air flow, a humidified air flow, an oxygenated air flow, and a water washed air flow mixed with indoor air, that is, the second air outlet 21 is in communication with an indoor air inlet and the outlet of the functional module 40 at the same time, and the indoor air of the indoor air inlet is mixed with the substances or gas from the functional module 40. Further, the purification device has a dust removal and / or sterilization function, that is, the purification device is a dust removal device, a sterilization device, or a device having both dust removal and sterilization functions. Of course, the functional module 40 can also use other functional modules 40 capable of changing air quality.

[0080] In some embodiments of the present application, the driving device is further configured to rotate the second air outlet column 20 about a vertical axis at the initial position. Preferably, the vertical axis passes through the second air outlet column 20, and the vertical axis is spaced apart from the second air outlet 21, and of course the vertical axis can also be at other positions. Preferably, the vertical axis is the axis of the first fan 31, and such arrangement can only rotate the second air outlet column 20, and the cross-flow fan does not need to follow the rotation, which is simple in structure and convenient to control, and is easy to implement.

[0081] When the air conditioner indoor unit of the embodiments of the present application is in operation, the first air outlet column 10 and the second air outlet column 20 can be opened to blow air alternatively or simultaneously. The second air outlet column 20 can be rotated to a preset position for blowing according to the needs, or the second air outlet column 20 can be rotated at all times when blowing, which can be clockwise rotation or counterclockwise rotation.

[0082] Specifically, in this embodiment, the airflow flowing out of the second air outlet 21 is formed at least under the action of the functional module 40, and meanwhile the second air outlet column 20 is rotatable, facilitating the delivery of the airflow flowing out of the second air outlet 21. For example, when the requirement for the airflow flowing out of the second air outlet 21 is relatively high, the delivery of the airflow flowing out of the second air outlet 21 can be accelerated and meanwhile the second air outlet column 20 is rotated, so that it is better diffused to various places in the room, improving the effect of the functional module 40, such as the effect of humidification, fresh air, dust removal, sterilization, oxygen enrichment, etc. Specifically, the driving device is started when the flow rate of the airflow flowing out of the second air outlet 21 reaches a preset value.

[0083] That is, in some embodiments of the present application, the control method of the air conditioner further comprises: judging whether the second air outlet column 20 is in the initial position; detecting the flow rate of the airflow flowing out of the second air outlet 21 when the second air outlet column 20 is in the initial position; and rotating the second air outlet column 20 when the flow rate of the airflow flowing out of the second air outlet 21 reaches a preset value.

[0084] Further, in some embodiments of the present application, when it is necessary to change the air mixing effect, the second air outlet column 20 can also be rotated around the vertical axis. In this way, the air outlet direction of the airflow flowing out of the second air outlet 21 can be changed, and the amount of air drawn can also be changed, so as to obtain different air outlet effects and more air outlet forms, meet the individual needs of users, and improve the user experience. Preferably, when the airflow flowing out of the second air outlet 21 is a mixed airflow of one or more of fresh air, purified air, humidified air, oxygen-enriched air, and water-washed air and indoor air, i.e., when the second air outlet column 20 also blows indoor air, a stronger air mixing effect can be achieved, so that the airflow is closer to room temperature.

[0085] In some embodiments of the present application, the functional module 40 comprises an airflow inlet and a second fan, and the second fan promotes the airflow to enter the airflow inlet and then flow out of the outlet of the functional module 40. For example, the functional module 40 is a fresh air module, etc. At this time, the air conditioner indoor unit can comprise the first fan 31, the second fan, the second air inlet 23, and the airflow inlet. The airflow inlet can be in communication with the second air inlet 23, so that the non-heat exchange airflow is one or more of fresh air, purified air, humidified air, oxygen-enriched air, and water-washed air; or the airflow inlet and the second air inlet 23 are not in communication, and the corresponding non-heat exchange airflow is a mixed airflow of one or more of fresh air, purified air, humidified air, oxygen-enriched air, and water-washed air and indoor air. Further, the substance from the functional module 40 can be located on the side of the first fan 31 facing the second air outlet 21 or the other side.

[0086] In some alternative embodiments of the present application, when the air flow inlet is in communication with the second air inlet 23, only one of the first air fan 31 and the second air fan is selected. In some other alternative embodiments of the present application, when the air flow inlet is in communication with the lower end or the upper end of the air duct and does not have the second air inlet 23, only the second air fan is included.

[0087] In some embodiments of the present application, the functional module 40 includes only an outlet, for example, the functional module 40 is a humidifying device, an oxygen adding device, etc., and the substance from the functional module 40 can be located on one side or the other side of the first air fan 31 facing the second air outlet 21 to be mixed into the indoor air from the second air inlet 23.

[0088] In some embodiments of the present application, as shown in Figure 1 The air conditioner indoor unit further includes a lower shell 30, the first air outlet column 10 and the second air outlet column 20 are arranged at the top end of the lower shell 30, the functional module 40 is arranged in the lower shell 30, and the second air fan is an axial flow fan or a centrifugal fan. The first air outlet column 10 and the second air outlet column 20 are arranged at the top end of the lower shell 30, the lower shell 30 has a supporting effect and also provides a mounting space for the functional module 40, the lower shell 30 is provided with a fresh air inlet and at least one indoor air inlet, which are in communication with the air inlet of the second air fan alternatively or simultaneously. The fresh air inlet is connected with a fresh air pipe to introduce fresh air flow from the outside.

[0089] In some embodiments of the present application, the functional module 40 is a humidifying device, which sends water mist to the lower end of the air duct, the water mist is mixed into the air flow entering from the second air inlet 23, and the mixture is blown out from the second air outlet 21. The air conditioner indoor unit can have the following working modes: when the indoor humidity is less than a first preset humidity, neither the functional module 40 nor the first air fan 31 works; when the indoor humidity is less than a second preset humidity and the indoor humidity is greater than the first preset humidity, the functional module 40 works and the first air fan 31 works at a low speed; when the indoor humidity is less than a third preset humidity and the indoor humidity is greater than the second preset humidity, the functional module 40 works and the first air fan 31 works at a high speed; when the indoor humidity is greater than the third preset humidity, the functional module 40 works and the first air fan 31 works at a high speed, and the second air outlet column 20 rotates clockwise or counterclockwise to blow water vapor to the surroundings in a rotating manner to improve the humidifying effect, and the second air outlet column 20 can continuously rotate in the counterclockwise direction or in the clockwise direction. The first preset humidity is less than the second preset humidity, and the second preset humidity is less than the third preset humidity. In some other embodiments of the present application, the second air outlet column 20 can be rotated to a position and then kept at the position to work for a period of time.

[0090] Further, when the functional module 40 is other types of modules, similar modes described above can also be used. Further, the fresh air device can be controlled according to the concentration of indoor carbon dioxide, the dust removal device can be controlled according to the concentration of indoor PM2.5, the sterilization device can be controlled according to the concentration of indoor bacteria, and the oxygen adding device can be controlled according to the oxygen concentration.

[0091] At this point, those skilled in the art should recognize that although the present application has been shown and described in detail in this paper, many other variants or modifications conforming to the principles of the present application can be directly determined or deduced according to the content disclosed by 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 these other variants or modifications.

Claims

1. A control method of an air conditioner including an air conditioner indoor unit, the control method comprising: determining whether a user is present in a room in which the air conditioner indoor unit is installed; and controlling the air conditioner indoor unit based on the determination result. The air conditioner indoor unit comprises a first air outlet column and a second air outlet column; the first air outlet column and the second air outlet column are arranged in a transverse direction; a first air outlet is formed on the front side of the first air outlet column; a second air outlet is formed on the front side of the second air outlet column; the air conditioner indoor unit has a condensation area; the control method of the air conditioner comprises: determining whether the condensation area needs to be dehumidified; when the condensation area needs to be dehumidified, moving the second air outlet column from an initial position to a preset position, and rotating the second air outlet column around a vertical axis at the preset position to align the second air outlet with the first air outlet; at the same time, stopping the first air outlet from delivering refrigeration airflow outward, and making the second air outlet deliver airflow outward; the airflow delivered by the second air outlet enters the first air outlet and flows through the condensation area on the first air outlet column; the temperature of the airflow delivered by the second air outlet is higher than the temperature of the airflow delivered by the first air outlet.

2. The control method of the air conditioner according to claim 1, characterized by, Further comprising: determining whether the air conditioner indoor unit is in a refrigeration process; if the air conditioner indoor unit is in a refrigeration process, determining whether the condensation area needs to be dehumidified.

3. The control method of the air conditioner according to claim 1, wherein Further comprising: detecting the ambient temperature, the ambient humidity and the temperature of the condensation area; determining whether the condensation area needs to be dehumidified according to the ambient temperature, the ambient humidity and the temperature of the condensation area.

4. The control method of the air conditioner according to claim 1, characterized by, Further comprising: detecting the ambient temperature, the ambient humidity, the temperature of the condensation area and the refrigeration time length of the air conditioner indoor unit; determining whether the condensation area needs to be dehumidified according to the ambient temperature, the ambient humidity, the temperature of the condensation area and the refrigeration time length of the air conditioner indoor unit. Or, detecting the ambient humidity and the temperature of the condensation area; determining whether the condensation area needs to be dehumidified according to the ambient humidity and the temperature of the condensation area.

5. The control method of the air conditioner according to claim 2, wherein Further comprising: determining whether the air conditioner indoor unit receives an instruction to end refrigeration; if the air conditioner indoor unit receives an instruction to end refrigeration, ending refrigeration, moving the second air outlet column from an initial position to a preset position, and rotating the second air outlet column around a vertical axis at the preset position to align the second air outlet with the first air outlet, and at the same time making the second air outlet deliver airflow outward.

6. The control method of the air conditioner according to claim 1, wherein: the condensation area is located near the first air outlet; or a first air guide member for guiding the transverse air outlet direction of the first air outlet is installed on the first air outlet column; the first air guide member comprises one or more first air guide plates arranged in a vertical direction and rotatably arranged; the condensation area is located on the first air guide plate, or the condensation area is located near the first air guide plate and on the first air guide plate.

7. The control method of the air conditioner according to claim 1, wherein Further comprising: determining whether the second air outlet column is in an initial position; when the second air outlet column is in an initial position, detecting the flow rate of the airflow delivered by the second air outlet; The second air outlet column is rotated when the flow rate of the airflow flowing out of the second air outlet reaches a preset value; the vertical axis passes through the second air outlet column, and the vertical axis is arranged at a distance from the second air outlet.

8. The control method of the air conditioner according to claim 1, characterized by, Further comprising: The rear side of the first air outlet column is provided with a first air inlet communicating with the first air outlet, and the first air inlet is provided with a first dust filter screen; The rear side of the second air outlet column is provided with a second air inlet communicating with the second air outlet, and the second air inlet is provided with a second dust filter screen; The control method of the air conditioner further comprises: judging whether the second dust filter screen needs to be cleaned; When the second dust filter screen needs to be cleaned, the second air outlet column is moved from the initial position to the preset position, and the second air outlet column is rotated around the vertical axis at the preset position to align the second air outlet with the first air outlet; at the same time, the second air outlet is in a state of no airflow outwardly conveying, and the first air outlet is in a state of outwardly conveying airflow; When the condensation area needs to be dehumidified, and when the second dust filter screen needs to be cleaned, the second air outlet is used to convey airflow outwardly first, and then the first air outlet is used to convey airflow outwardly; or the second air outlet is used to convey airflow outwardly and the first air outlet is used to convey airflow outwardly alternately.

9. The control method of the air conditioner according to claim 1, wherein: The first air outlet is in a vertical strip shape, and the second air outlet is in a vertical strip shape; When the second air outlet column is at the initial position, the first air outlet column and the second air outlet column are arranged in a transverse direction, the first air outlet faces forward and faces the second air outlet column, and the second air outlet faces forward and faces the first air outlet column; The ratio of the transverse width of the second air outlet column to the transverse width of the first air outlet column is less than 1 / 2, the ratio of the longitudinal depth of the second air outlet column in the front-rear direction to the longitudinal depth of the first air outlet column in the front-rear direction is less than 1 / 2, the second air outlet column is located on one side of the front half of the first air outlet column in the transverse direction, and the airflow flowing out of the first air outlet and the airflow flowing out of the second air outlet can be mixed when the second air outlet column is at the initial position; When the second air outlet column is at the initial position, an air guide interval is formed between the second air outlet column and the first air outlet column, so that when the first air outlet and / or the second air outlet is blowing, the air in the air guide interval is driven to flow forward by negative pressure.

10. The control method of the air conditioner according to claim 8, characterized by, The air conditioner indoor unit further comprises a functional module, the outlet of the functional module communicates with the upper end or the lower end of the second air outlet column, and the functional module does not work when the condensation area needs to be dehumidified or when the second dust filter screen needs to be cleaned; The functional module is one or more of a fresh air device, an oxygen adding device, a purification device, a humidifying device, and a water washing device.

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