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 the condensation area needs to remove condensation; when the condensation area needs to remove condensation, moving a baffle to a second position, stopping a first air outlet from conveying refrigeration air flow outward, and making a second air outlet convey air flow outward; the baffle has a first position for opening the first air outlet and the second air outlet, and a second position in front of the first air outlet and the second air outlet; when the baffle is in the second position, making the air flow out of the second air outlet enter the first air outlet, so that the air flow out of the second air outlet flows through the condensation area; the temperature of the air flow out of the second air outlet is higher than the temperature of the air flow out of the first air outlet. The condensation of the condensation area can be prevented or removed, the water on the evaporator and the dust on the dust filter screen at the air inlet can be taken away, and the energy-saving effect is obvious.

Description

TECHNICAL FIELD

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

[0002] The existing vertical air conditioner indoor unit usually has a vertical strip-shaped air outlet on the front side of the shell, and the air outlet realizes up-down and left-right swing through the air guide device. With the development of the times and the progress of technology, users not only expect air conditioners to have faster cooling and heating speeds, but also pay more and more attention to the comfort performance of air conditioners. Therefore, some existing technologies have made many improvements to the air outlet structure, such as blowing soft wind, new wind, humidifying air flow, etc. The inventor finds that the vertical air conditioner indoor unit usually has a condensation area, which can also be called a condensation prone area, such as the air outlet for blowing cold air, which usually has condensation. SUMMARY

[0003] The purpose of the present application is to overcome the above problems or at least partially solve the above problems, and to provide a control method of an air conditioner, which can prevent or remove condensation in the condensation area, and at the same time can take away the moisture on the evaporator and the dust on the filter screen at the air inlet.

[0004] Specifically, the present application provides a control method of an air conditioner, the air conditioner comprising an air conditioner indoor unit, the air conditioner indoor unit comprising a vertically arranged baffle, 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; the front side of the first air outlet column is provided with a first air outlet; the front side of the second air outlet column is provided with a second air outlet; the air conditioner indoor unit has a condensation area; the control method of the air conditioner comprises:

[0005] determining whether the condensation area needs to be decondensed;

[0006] when the condensation area needs to be decondensed, moving the baffle to a second position, and at the same time stopping the first air outlet from conveying refrigeration air flow outward, and making the second air outlet in a state of conveying air flow outward;

[0007] the baffle has a first position for opening the first air outlet and the second air outlet, and has the second position in front of the first air outlet and the second air outlet; when the baffle is in the second position, the air flow flowing out of the second air outlet enters the first air outlet, so that the air flow flowing out of the second air outlet flows through the condensation area; the temperature of the air flow flowing out of the second air outlet is higher than the temperature of the air flow flowing out of the first air outlet.

[0008] Optionally, the control method of the air conditioner further comprises:

[0009] determining whether the air conditioner indoor unit is in a refrigeration process;

[0010] If the air conditioner indoor unit is in the process of cooling, it is determined whether the condensation area needs to remove condensation.

[0011] Optionally, the control method of the air conditioner further comprises:

[0012] detecting the ambient temperature, the ambient humidity and the temperature of the condensation area;

[0013] determining whether the condensation area needs to remove condensation according to the ambient temperature, the ambient humidity and the temperature of the condensation area.

[0014] Optionally, the control method of the air conditioner further comprises: detecting the ambient temperature, the ambient humidity, the temperature of the condensation area and the cooling time length of the air conditioner indoor unit; determining whether the condensation area needs to remove condensation according to the ambient temperature, the ambient humidity, the temperature of the condensation area and the cooling time length of the air conditioner indoor unit; or,

[0015] detecting the ambient humidity and the temperature of the condensation area; determining whether the condensation area needs to remove condensation according to the ambient humidity and the temperature of the condensation area.

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

[0017] determining whether the air conditioner indoor unit receives an instruction to end cooling;

[0018] If the air conditioner indoor unit receives an instruction to end cooling, the cooling is ended, and the baffle is moved to the second position, and the second air outlet is in a state of conveying air flow outward.

[0019] Optionally, the condensation area is located near the first air outlet.

[0020] Optionally, a first air guide member for guiding the horizontal 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 rotating manner 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.

[0021] When the baffle is moved to the second position according to the first preset program, the first air guide plate is opened by a preset angle.

[0022] Optionally, the baffle is movably arranged in the lateral direction in front of the first air outlet column and the second air outlet column.

[0023] The first air outlet is in a vertical strip shape, and the second air outlet is in a vertical strip shape.

[0024] The first air outlet faces forward and the second air outlet faces the first air outlet.

[0025] Optionally, 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 dustproof screen;

[0026] 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 dustproof screen;

[0027] The control method of the air conditioner further comprises:

[0028] Judging whether the second dust filter screen needs to be cleaned;

[0029] When the second dust filter screen needs to be cleaned, moving the baffle to the second position, and making the second air outlet in a state of no air flow being delivered outward and the first air outlet in a state of air flow being delivered outward; when the baffle is in the second position, the air flow delivered outward from the first air outlet is also made to flow to the second air inlet through the second air outlet;

[0030] When the condensation area needs to be dehumidified, and when the second dust filter screen needs to be cleaned, the second air outlet is first made to deliver air flow outward, and then the first air outlet is made to deliver air flow outward; or the second air outlet is made to deliver air flow outward and the first air outlet is made to deliver air flow outward alternately.

[0031] Optionally, the air conditioner indoor unit further comprises a functional module, an outlet of the functional module communicates with the upper end or the lower end of the second air outlet column, and when the baffle moves to the second position, the functional module does not work;

[0032] 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;

[0033] The ratio of the width of the second air outlet column in the transverse direction to the width of the first air outlet column in the transverse direction 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; and the second air outlet column is located on one side of the front half of the first air outlet column in the transverse direction.

[0034] In the air conditioner control method of this invention, a heat-exchange airflow is blown out using a first air outlet column, and a non-heat-exchange airflow is blown out using a second air outlet column. The heat-exchange and non-heat-exchange airflows can mix after being blown out to form a mixed airflow. The temperature of the mixed airflow is closer to room temperature than the heat-exchange airflow, resulting in higher comfort, a gentler breeze, increased air volume and velocity, and a longer delivery distance. It also allows the airflow exiting the second air outlet to better diffuse throughout the room, accelerating indoor air circulation, improving heat exchange efficiency, and thus improving energy efficiency, resulting in significant energy savings. The airflow exiting the first and second air outlets can also be blown separately or without mixing. Specifically, by setting a baffle, condensation in condensation areas can be prevented or removed. Specifically, by moving the baffle, the non-heat-exchange airflow enters the first air outlet, blowing air into the condensation area near the first air outlet, within the first air outlet column, or the guide plate. It can also remove moisture from the evaporator and dust from the filter screen at the air inlet, reducing air resistance at the first air inlet and improving energy efficiency. It eliminates the need for dedicated anti-condensation equipment, boasts a high degree of intelligence and low cost.

[0035] The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0036] The following sections will describe some specific embodiments of the invention in a detailed manner by way of example and not limitation, with reference to the accompanying drawings. The same reference numerals in the drawings denote the same or similar parts or portions. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0037] Figure 1 This is a schematic front view of the indoor unit of an air conditioner according to an embodiment of the present invention;

[0038] Figure 2 yes Figure 1 A schematic top view of the indoor unit of the air conditioner shown;

[0039] Figure 3 yes Figure 1 A schematic partial structural diagram of the indoor unit of the air conditioner shown;

[0040] Figure 4 yes Figure 1 The diagram shows a schematic reference state of an indoor air conditioning unit.

[0041] Figure 5 This is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention;

[0042] Figure 6 This is a schematic flowchart of an air conditioner control method according to an embodiment of the present invention. Detailed Implementation

[0043] The following reference Figures 1 to 6 This invention describes a control method for an air conditioner according to an embodiment of the present invention. The terms "front," "rear," "upper," "lower," "top," "bottom," "inner," "outer," and "lateral," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0044] The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," etc., may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically stated, this indicates that other features are not excluded and may be further included.

[0045] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," and "coupling," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0046] Figure 1 This is a schematic front view of an air conditioner indoor unit according to an embodiment of the present invention, such as... Figure 1 As shown, and refer to Figures 2 to 4 This invention provides an air conditioner, which includes an indoor unit comprising a first air outlet column 10, a second air outlet column 20, and a baffle 50.

[0047] The first air outlet column 10 is vertically columnar, and a first air outlet 11 for blowing air flow is formed on the front side of the first air outlet column 10, and the first air outlet 11 is vertically strip-shaped. The second air outlet column 20 is vertically columnar, and a second air outlet 21 for blowing air flow is formed on the front side of the second air outlet column 20, and the second air outlet 21 is vertically strip-shaped. The second air outlet column 20 and the first air outlet column 10 are arranged in the transverse direction, and the left-right direction perpendicular to the front-rear direction of the air conditioner indoor unit is the "transverse direction". The rear side of the first air outlet column 10 is provided with a first air inlet 13 communicating with the first air outlet 11. The first air inlet 13 is provided with a first dust filter screen.

[0048] 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 blows towards the indoor environment through the first air outlet 11 to complete 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 of 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.

[0049] In this embodiment of the present application, the baffle 50 is vertically arranged, and the baffle 50 is movably arranged so that the baffle 50 has a first position for opening the first air outlet 11 and the second air outlet 21, and has a second position in front of the first air outlet 11 and the second air outlet 21, as shown in Figure 2 When the baffle 50 is in the second position, the air flow flowing out of the first air outlet 11 enters the second air outlet column 20 through the second air outlet 21, or the air flow flowing out of the second air outlet 21 enters the first air outlet column 10 through the first air outlet 11, so that the air flow flowing out of the second air outlet 21 flows through the condensation area; the temperature of the air flow flowing out of the second air outlet 21 is higher than the temperature of the air flow flowing out of the first air outlet 11.

[0050] Figure 5 is a schematic flow chart of the control method of the air conditioner of an embodiment of the present application; as Figure 5As shown, the embodiment of the present application provides a control method of an air conditioner, comprising: judging whether the condensation area needs to be decondensed; when the condensation area needs to be decondensed, moving the baffle 50 to the second position, and making the first air outlet 11 in the state of no air flow outwardly conveying, and making the second air outlet 21 in the state of air flow outwardly conveying. The embodiment of the present application automatically judges whether the condensation area needs to be decondensed, and when the condensation area needs to be decondensed, automatically moves the baffle 50, so that the non-heat exchange air flow enters the first air outlet 11, and blows the condensation area near the first air outlet or in the first air column, and the defroster, etc., so as to no longer set a special device for dust removal, etc., which is low in cost and energy-saving. At the same time, the water on the heat exchanger 14 (i.e. evaporator) and the dust on the first dust filter net at the first air inlet can be taken away.

[0051] In some embodiments of the present application, as shown, Figure 6 The control method of the air conditioner further comprises: judging whether the air conditioner indoor unit is in the process of refrigeration; if the air conditioner indoor unit is in the process of refrigeration, judging whether the condensation area needs to be decondensed. The decondensation action is mainly performed in the process of air conditioner refrigeration. Further, the control method of the air conditioner further comprises: judging whether the air conditioner indoor unit receives an instruction to end the refrigeration; if the air conditioner indoor unit receives the instruction to end the refrigeration, ending the refrigeration, and moving the baffle 50 to the second position, and making the second air outlet in the state of air flow outwardly conveying. After the refrigeration is ended, the condensation in the condensation area for a long time is prevented, and the water on the evaporator for a long time is prevented.

[0052] 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; judging whether the condensation area needs to be decondensed 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 length 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 length of the air conditioner indoor unit. 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; judging whether the condensation area needs to be decondensed according to the ambient humidity and the temperature of the condensation area.

[0053] Further, when the decondensation of the condensation area is ended, the baffle 50 is moved to the first position. Wherein, the time length that the baffle 50 is in the second position is detected; when the time length is greater than a time length preset value, the decondensation of the condensation area is ended.

[0054] In some preferred embodiments of the present application, the control method of the air conditioner further comprises: moving the baffle 50 to the second position when the first air outlet 11 and the second air outlet 21 both stop air supply. That is, the first air outlet 11 and the second air outlet 21 can be closed by the baffle 50 when the air conditioner is turned off, which to some extent closes the air conditioner from dust and the like.

[0055] In some embodiments of the present application, the first air outlet 11 is oriented towards the front and the second air column 20, that is, the first air outlet 11 is oriented towards the oblique front, and the second air outlet 21 is oriented towards the front and the first air column 10, that is, the second air outlet 21 is oriented towards the oblique front. Further, the rear side edge of the second air outlet 21 is located 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 located behind the front side edge of the first air outlet 11. The front side of the first air column 10 is provided with a display device 18, and the display device 18 is located on the side of the first air outlet 11 away from the second air outlet 21.

[0056] In some embodiments of the present application, the baffle 50 is movably arranged on the front side of the first air column 10 and the second air column 20 in the transverse direction. The structure is simple, easy to realize, easy to control and low in cost. In the initial position, the baffle 50 is located in front of the display device 18. The baffle 50 is preferably a transparent plate.

[0057] In some embodiments of the present application, the first air column 10 is provided with a first air guide member for guiding the transverse air outlet direction of the first air outlet 11. The first air guide member can include a plurality of first air guide plates 12. "Guiding the transverse 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 towards the front, towards the left front, towards the right front, and the like. The second air column 20 is provided with a second air guide member for guiding the transverse air outlet direction of the second air outlet 21. The second air guide member 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 member and the second air guide member at the same time, so as to control the coordinated action of the two.

[0058] In particular, the last first air guide plate 12 can be rotated to the rear side edge of the second air outlet 21, so as to guide the air flow flowing out of the first air outlet 11 to the second air outlet 21 or guide the air flow flowing out of the second air outlet 21 to the first air outlet 11 when the baffle 50 is in the second position.

[0059] In some other embodiments of the present application, the last second air guide plate 22 and the last first air guide plate 11 can both be rotated so that the last second air guide plate 22 is located at the position behind or in front of the last first air guide plate 11, so as to guide the air flow flowing out of the first air outlet 11 to the second air outlet 21 or guide the air flow flowing out of the second air outlet 21 to the first air outlet 11 when the baffle 50 is in the second position.

[0060] 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 less 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 less 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.

[0061] In some embodiments of the present application, the condensation area is located on the first air deflector 12, or the condensation area is located near the first air outlet 11 and on the first air deflector 12. When the condensation area needs to be decondensed so that the baffle moves to the second position, the first air deflector is opened by a preset angle. In other embodiments of the present application, the condensation area is located near the first air outlet.

[0062] 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 to block part of the area of the first air outlet. By arranging the second air outlet column 20 obliquely, part of the area of the first air outlet 11 can be blocked, such as the area with the highest temperature, the lowest temperature, etc. of the air outlet of the first air outlet 11, so that the air outlet temperature of the first air outlet 11 is more uniform, the comfort degree of the user is improved, and of course the blocking can also be performed according to the needs of the user to improve the user experience.

[0063] 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. 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.

[0064] In some embodiments of the present application, as Figure 1As shown, 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, forming a mixed air flow. The temperature of the mixed air flow is closer to the room temperature than the heat exchange air flow, and the comfort is higher. The air feeling is more soft, and the air volume and air speed are increased, and the air supply distance is farther. The air flow out of the second air outlet 21 can be better diffused to all parts of the room.

[0065] In some embodiments of the present application, as shown in Figure 1 As shown, the second air outlet column 20 and the first air outlet column 10 form an air guide interval 16. When the first air outlet 11 and / or the second air outlet 21 blows air, the air in the air guide interval 16 is driven to flow forward by the negative pressure. The air guide 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 guide interval 16, which promotes the indoor air behind the indoor unit of the air conditioner to flow forward through the air guide interval 16 to mix into the air flow of the first air outlet column 10 or the second air outlet column 20. This 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 the heat exchange air flow, and the comfort is higher. The air feeling is more soft, and the air volume and air speed are increased, and the air supply distance is farther.

[0066] In some embodiments of the present application, as shown in Figure 1 As shown, 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 and intermittently.

[0067] 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, and it is obviously 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, and improves the competitiveness of the product.

[0068] For example, as shown in Figures 1 to 4As shown, the ratio of the width of the second air outlet column 20 in the transverse direction to the width of the first air outlet column 10 in the transverse direction can be less than 1 / 2. The ratio of the depth of the second air outlet column 20 in the front-rear direction to the depth of the first air outlet column 10 in the front-rear direction can be less than 1 / 2, so as to form a double-column differentiated appearance. The front-rear position of the second air outlet 21 can be flush or substantially flush with the front-rear position of the first air outlet 11, for example, the front-rear distance between the two is not more than 10 cm, so that the non-heat exchange airflow and the heat exchange airflow can be 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; or, 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.

[0069] In some embodiments of the present application, as shown in Figure 2 As 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 causes the heat exchange airflow after passing through the heat exchanger 14 to flow out of 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. In some alternative embodiments, the heat exchange fan 15 can be a plurality of axial flow fans or centrifugal fans arranged in sequence in the up-down direction.

[0070] 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 communicating 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 causes the airflow to 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.

[0071] Further, the second air inlet 23 is provided with a second dust filter screen. The control method of the air conditioner further comprises: determining whether the second dust filter screen needs to be cleaned; when the second dust filter screen needs to be cleaned, moving the baffle 50 to the second position, and causing the second air outlet 21 to be in a state of no airflow being transported outward, and causing the first air outlet 11 to be in a state of transporting airflow outward. The embodiments of the present application can also clean the filter screen provided at the second air inlet 23, thereby improving practicability.

[0072] The method for determining 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.

[0073] In some embodiments of the present application, as shown in Figure 6As shown, when the dehumidification area needs to be dehumidified and the second filter needs to be cleaned, the second air outlet 21 first sends air flow outward until the dehumidification of the dehumidification area is completed, and then the first air outlet 11 sends air flow outward. In some alternative embodiments of the present application, when the dehumidification area needs to be dehumidified and the second filter needs to be cleaned, the second air outlet 21 and the first air outlet 11 send air flow outward alternately.

[0074] 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 air flow, and the functional module 40 cooperates with the second air outlet column 20. The outlet of the functional module 40 communicates with the upper end or the lower end of the air duct, or the outlet of the functional module 40 communicates with the second air inlet 23. When the baffle 50 moves to the second position, the functional module 40 does not work. Of course, when the dehumidification area needs to be dehumidified so that the baffle 50 moves to the second position, the functional module 40 can also work.

[0075] 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 communicates with the second air inlet 23, the corresponding non-heat exchange air flow is one or more of a fresh air flow, a purification air flow, a humidifying air flow, an oxygen adding air flow, and a water washing air flow. When the outlet of the functional module 40 communicates with the upper end or the lower end of the air duct, the corresponding non-heat exchange air flow is one or more of a fresh air flow, a purification air flow, a humidifying air flow, an oxygen adding air flow, and a water washing air flow mixed with indoor air, that is, the second air outlet 21 simultaneously communicates with an indoor air inlet and the outlet of the functional module 40, 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.

[0076] In some embodiments of the present application, the second air outlet column 20 is rotatably arranged about a vertical axis. 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, so that only the second air outlet column 20 is rotated, 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. Further, the air conditioner indoor unit further comprises a turntable on the lower side of the second air outlet column 20; the turntable is rotatably arranged about a vertical axis, and the lower end of the second air outlet column 20 is rotatably arranged about a horizontal axis on the turntable. When the baffle 50 moves to the second position, the second air outlet column 20 is in the initial position.

[0077] The air conditioner indoor unit of the embodiment of the present application can make the first air outlet column 10 and the second air outlet column 20 open air supply alternatively or simultaneously. The second air outlet column 20 can be rotated to a preset position for air blowing according to requirements, or the second air outlet column 20 can rotate at any time during air blowing, which can rotate clockwise or counterclockwise.

[0078] 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 the second air outlet column 20 can rotate to facilitate 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 the second air outlet column 20 can be rotated at the same time, so that the airflow flowing out of the second air outlet 21 can be diffused to more places in the room, and the effect of the functional module 40 can be improved, such as the effect of humidification, fresh air, dust removal, sterilization, oxygen enrichment, etc.

[0079] Further, as shown in Figure 1 the air conditioner indoor unit further comprises a driving device 42 configured to drive the second air outlet column 20 to rotate. The driving device 42 drives the second air outlet column 20 to rotate and send out the airflow flowing out of the second air outlet 21; the driving device 42 is started when the flow rate of the airflow flowing out of the second air outlet 21 reaches a preset value.

[0080] 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 rotate 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 air volume can be changed 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, and the airflow is closer to room temperature.

[0081] In some embodiments of the present application, the functional module 40 comprises an airflow inlet and a second fan, and the second fan drives 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 correspond to the 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 one side or the other side of the first fan 31 facing the second air outlet 21.

[0082] 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.

[0083] 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.

[0084] 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 a centrifugal fan or an axial flow 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.

[0085] 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, 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 rotate continuously 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.

[0086] Further, when the functional module 40 is other types of modules, the above similar mode can also be used. Further, the fresh air device can be controlled according to the indoor carbon dioxide concentration, the dust removal device can be controlled according to the indoor PM2.5 concentration, the sterilization device can be controlled according to the indoor pathogenic bacteria concentration, and the oxygen adding device can be controlled according to the oxygen concentration.

[0087] In some embodiments of the present application, the second air outlet column 20 is movably arranged along a preset track around the circumference of the first air outlet column 10, so that the second air outlet column 20 has at least two relative positions relative to the first air outlet column 10.

[0088] For example, the second air outlet column 20 has an initial position, and the second air outlet column 20 also has a second position in the outflow direction of the airflow 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 has an initial position, and the second air outlet column 20 also has a third position between the first air outlet 11 and the user position, so as to shield the first air outlet 11 and prevent the airflow blown by the first air outlet 11 from directly blowing the person at the user position. Further, the user position can be detected by 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.

[0089] In some embodiments of the present application, the second air outlet column 20 has an initial position, and the second air outlet column 20 also has a fourth position, at which the second air outlet 21 can be rotated to a position aligned with the first air inlet 13, or the second air outlet column 20 also has a fifth position, at which the second air inlet 23 can be rotated to a position aligned with the first air outlet 11.

[0090] Further, the second air outlet column 20 can be moved to the above-mentioned initial position, second position, third position, fourth position, and fifth position, and of course can also be moved to other positions outside the five positions to achieve diversified air supply. Further, the connecting line of the two ends of the preset track is collinear with the connecting line of the two opposite corners of the first air outlet column 10; or the two ends of the preset 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.

[0091] At this point, those skilled in the art should recognize that although the present application has been shown and described in detail in the above embodiments, many other variations or modifications can be directly determined or deduced according to the disclosure of the present application without departing from the spirit and scope of the present application, which conform to the principles of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations 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 vertically arranged baffle, 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 baffle to a second position, and stopping the first air outlet from delivering refrigeration airflow outward, and making the second air outlet deliver airflow outward; the baffle has a first position for opening the first air outlet and the second air outlet, and a second position in front of the first air outlet and the second air outlet; when the baffle is in the second position, the airflow flowing out of the second air outlet enters the first air outlet, so that the airflow flowing out of the second air outlet flows through the condensation area; 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.

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 an 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 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 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, and moving the baffle to the second position, and 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.

7. The control method of the air conditioner according to claim 1, wherein: a first air guide is installed on the first air outlet column for guiding the transverse air outlet direction of the first air outlet; the first air guide 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 outlet and on the first air guide plate; when the baffle is moved to the second position, the first air guide plate is opened by a preset angle.

8. The control method of the air conditioner according to claim 1, wherein: the baffle is movably arranged on the front side of the first air outlet column and the second air outlet column in a transverse direction. The first air outlet is in the shape of a vertical strip, and the second air outlet is in the shape of a vertical strip. 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.

9. The control method of the air conditioner according to claim 1, wherein 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 dustproof 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 dustproof screen; The control method of the air conditioner further comprises: judging whether the second dustproof screen needs to be cleaned; when the second dustproof screen needs to be cleaned, moving the baffle to the second position, and at the same time, making the second air outlet in a state of no air flow being delivered outward, and making the first air outlet in a state of air flow being delivered outward; when the baffle is in the second position, the air flow flowing out of the first air outlet also flows to the second air inlet through the second air outlet; when the condensation area needs to be dehumidified, and when the second dustproof screen needs to be cleaned, first making the second air outlet deliver air flow outward, and then making the first air outlet deliver air flow outward; or making the second air outlet deliver air flow outward and making the first air outlet deliver air flow outward alternately.

10. The control method of the air conditioner according to claim 9, wherein 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 when the baffle moves to the second position, the functional module does not work; 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; The ratio of the width of the second air outlet column in the transverse direction to the width of the first air outlet column in the transverse direction 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; and the second air outlet column is located on one side of the front half of the first air outlet column in the transverse direction.

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