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 first dust filter screen needs to be cleaned; when the first dust filter screen needs to be cleaned, moving the baffle to a second position, and making the first air outlet in a state of no air flow outwardly conveying and the second air outlet in a state of conveying air flow outwardly. By arranging the baffle, the non-heat exchange air flow can enter the first air outlet, the dust filter screen arranged at the first air inlet is cleaned, special equipment for cleaning and the like is no longer arranged, the degree of intelligence is high, the cost is low, the air resistance of the first air inlet is reduced, and energy is saved.

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 sets a vertical strip-shaped air outlet on the front side of the shell, and 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 speed, 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 vertical air conditioner indoor unit is usually provided with a dust filter screen at the air inlet. The existing dust filter screen is relatively troublesome to clean, and a special cleaning structure needs to be set. 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 automatically clean the dust filter screen of the air conditioner indoor unit.

[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 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 first air inlet is arranged on the rear side of the first air outlet column and communicates with the first air outlet, and a first dust filter screen is arranged at the first air inlet; a second air outlet is formed on the front side of the second air outlet column; the control method of the air conditioner comprises:

[0005] determining whether the first dust filter screen needs to be cleaned;

[0006] when the first dust filter screen needs to be cleaned, moving the baffle to a second position, and making the first air outlet in a state of no air flow outwardly conveying and the second air outlet in a state of air flow outwardly conveying;

[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 flows to the first air inlet through the first air outlet.

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

[0009] detecting the amount of impurities on the first dust filter screen;

[0010] when the amount of impurities is greater than a first impurity preset value, it is determined that the first dust filter screen needs to be cleaned.

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

[0012] detecting a working duration of the first dust filter screen;

[0013] when the working duration is greater than a first duration preset value, determining that the first dust filter screen needs to be cleaned.

[0014] Optionally, the control method of the air conditioner further comprises:

[0015] when the cleaning of the first dust filter screen is stopped, moving the baffle to the first position;

[0016] wherein, detecting an amount of impurities on the first dust filter screen; when the amount of impurities is less than a second impurity preset value, stopping the cleaning of the first dust filter screen; or, detecting a duration when the baffle is in the second position; when the duration is greater than a second duration preset value, stopping the cleaning of the first dust filter screen.

[0017] Optionally, the control method of the air conditioner further comprises:

[0018] when the first air outlet and the second air outlet both stop blowing air, moving the baffle to the second position.

[0019] Optionally, 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;

[0020] the first air outlet is in a vertical strip shape, and the second air outlet is in a vertical strip shape;

[0021] 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.

[0022] Optionally, the rear side of the second air outlet column is provided with a second air inlet in communication 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 comprises:

[0023] judging whether the second dust filter screen needs to be cleaned;

[0024] when the second dust filter screen needs to be cleaned, moving the baffle to the second position, and simultaneously 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 is also made to flow to the second air inlet through the second air outlet.

[0025] Optionally, when the first filter screen needs to be cleaned and the second filter screen needs to be cleaned, the second air outlet first sends air flow outward until the first filter screen is cleaned, and then the first air outlet sends air flow outward.

[0026] When the first filter screen needs to be cleaned and the second filter screen needs to be cleaned, the second air outlet and the first air outlet alternately send air flow outward.

[0027] 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, and the functional module not working when the baffle moves to the second position.

[0028] 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.

[0029] Optionally, the first air outlet column is provided with a heat exchanger and a heat exchanger fan, the heat exchanger fan making air flow from the first air inlet into the first air outlet column, and the air flow flowing out of the first air outlet after heat exchange with the heat exchanger; the heat exchanger fan is a cross-flow fan.

[0030] The second air outlet column is rotatably arranged on a transverse side of the first air outlet column around a vertical axis; when the baffle moves to the second position, the second air outlet column is in an initial position.

[0031] The second air outlet column is provided with a first fan, the first fan making air flow from the second air inlet into the second air outlet column, and then flowing out of the second air outlet; the first fan is a cross-flow fan; the vertical axis is a rotation axis of the first fan.

[0032] The ratio of the width of the second air outlet column along the transverse direction to the width of the first air outlet column along the transverse direction is less than 1 / 2; the ratio of the longitudinal depth dimension of the second air outlet column along the front-rear direction to the longitudinal depth dimension of the first air outlet column along the front-rear direction is less than 1 / 2; the second air outlet column is on a transverse side of the front half of the first air outlet column.

[0033] The second air outlet column and the first air outlet column form an air guide interval therebetween, so that when the first air outlet and / or the second air outlet sends air flow outward, the air in the air guide interval is driven to flow forward by the action of negative pressure.

[0034] In the air conditioner control method of this invention, a first air outlet column blows out heat-exchange airflow, and a second air outlet column blows out non-heat-exchange airflow. The heat-exchange and non-heat-exchange airflows can mix after being blown out, forming 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, when the first dust filter needs dust removal, the baffle can be moved to allow non-heat-exchange airflow to enter the first air outlet, automatically removing dust from the filter set at the first air inlet. This eliminates the need for dedicated dust removal equipment, resulting in a high degree of intelligence and low cost, while also reducing air resistance at the first air inlet and saving energy.

[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 referenceFigures 1 to 6 The control method of the air conditioner is described. Wherein, the orientation or position relationship indicated by "front", "back", "upper", "lower", "top", "bottom", "inner", "outer", "transverse" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0044] The terms "first", "second", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include at least one of the features, that is, 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, etc., unless otherwise specifically limited. When a certain feature "includes or contains" a certain or certain features, unless otherwise specifically described, it indicates that other features are not excluded and can further include other features.

[0045] Unless otherwise specifically defined and limited, the terms "mount", "connect", "connect", "fix", "couple" and the like should be broadly understood, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. 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.

[0046] Figure 1 is the schematic front view of the indoor unit of the air conditioner according to an embodiment of the present application, as Figure 1 shown, and referring to Figures 2 to 4 , the present application provides an air conditioner, which comprises an indoor unit of air conditioner, which comprises 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 the front side of the first air outlet column 10 is provided with a first air outlet 11 for blowing air flow, which is vertically strip-shaped. The second air outlet column 20 is vertically columnar, and the front side of the second air outlet column 20 is provided with a second air outlet 21 for blowing air flow, which is vertically strip-shaped. The second air outlet column 20 is arranged transversely with the first air outlet column 10, and the left-right direction perpendicular to the front-rear direction of the indoor unit of air conditioner is "transverse". 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 airflow flowing out of the first air outlet 11 is a heat exchange airflow. The "heat exchange airflow" refers to the airflow 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 airflow is cold air. When the air conditioner indoor unit is in a heating mode, the heat exchange airflow is hot air. The heat exchange airflow is blown to the indoor environment through the first air outlet 11 to complete cooling and heating of the indoor environment. The airflow flowing out of the second air outlet 21 is a non-heat exchange airflow, 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 in which the first air outlet 11 and the second air outlet 21 are opened, and a second position in which the baffle 50 is located 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 airflow flowing out of the first air outlet 11 enters the second air outlet column 20 through the second air outlet 21, or the airflow flowing out of the second air outlet 21 enters the first air outlet column 10 through the first air outlet 11.

[0050] Figure 5 is a schematic flow chart of a control method of an air conditioner according to an embodiment of the present application; as shown in Figure 5 As shown in the figure, the embodiment of the present application provides a control method of an air conditioner, which comprises: judging whether the first dust filter screen needs to be cleaned; when the first dust filter screen needs to be cleaned, moving the baffle 50 to the second position, and simultaneously making the first air outlet 11 in a state in which no airflow is transported outward and making the second air outlet 21 in a state in which airflow is transported outward. The embodiment of the present application automatically judges whether the first dust filter screen needs to be cleaned, and when the first dust filter screen needs to be cleaned, automatically moves the baffle 50 to make the non-heat exchange airflow enter the first air outlet 11 to automatically clean the dust filter screen arranged at the first air inlet 13, and no special equipment needs to be arranged for cleaning, which is low in cost and energy-saving.

[0051] In some embodiments of the present application, the control method of the air conditioner further comprises: detecting the amount of impurities on the first dust filter screen; and when the amount of impurities is greater than a first impurity preset value, determining that the first dust filter screen needs to be cleaned. The amount of impurities on the first dust filter screen is directly detected to accurately determine whether the first dust filter screen needs to be cleaned. In other embodiments of the present application, the control method of the air conditioner further comprises: detecting the working time length of the first dust filter screen; and when the working time length is greater than a first time length preset value, determining that the first dust filter screen needs to be cleaned. The working time length is used for judgment, which is simple in structure and convenient to control.

[0052] Further, the baffle 50 is moved to the first position when the dusting of the first dust screen is stopped. The amount of impurities on the first dust screen is detected; when the amount of impurities is less than a second preset value of the amount of impurities, the dusting of the first dust screen is stopped; or the time length that the baffle 50 is in the second position is detected; when the time length is greater than a second preset value of the time length, the dusting of the first dust screen is stopped.

[0053] 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, when the air conditioner is turned off, the first air outlet 11 and the second air outlet 21 can be closed by the baffle 50, which to some extent closes the air conditioner from dust and the like.

[0054] In some embodiments of the present application, the first air outlet 11 faces forward and the second air outlet 21, i.e. the first air outlet 11 faces obliquely forward, and the second air outlet 21 faces forward and the first air outlet 11, 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; the front side edge of the second air outlet 21 is in rear of 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, and the display device 18 is on the side of the first air outlet 11 away from the second air outlet 21.

[0055] In some embodiments of the present application, the baffle 50 is movably arranged on the front side of the first air outlet column 10 and the second air outlet 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.

[0056] In some embodiments of the present application, the first air outlet 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 forward, left forward, right forward, etc. The second air outlet 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 two to act in coordination.

[0057] 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.

[0058] In some embodiments of the present application, the last side second air deflector 22 and the last side first air deflector 11 are rotatable such that the last side second air deflector 22 is located at a position behind or in front of the last side first air deflector 11, so as to guide the air flow out of the first air outlet 11 to the second air outlet 21 or guide the air flow 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 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.

[0060] 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., 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.

[0061] 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 rotate the second air outlet column 20 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.

[0062] In some embodiments of the present application, as shown in FIG. 1, the air conditioner indoor unit further comprises a baffle 50 arranged in the air outlet column 10, and the baffle 50 is rotatable around a horizontal axis perpendicular to the plane where the first air outlet 11 is located, so as to block part of the area of the first air outlet 11 when the baffle 50 is in the first position, and to block part of the area of the second air outlet 21 when the baffle 50 is in the second position. 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.

[0063] 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 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.

[0064] 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.

[0065] 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.

[0066] For example, as shown in Figures 1 to 4As shown, the ratio of the width of the second air outlet column 20 in the lateral direction to the width of the first air outlet column 10 in the lateral 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 lateral direction; 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 lateral direction.

[0067] 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 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.

[0068] 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.

[0069] Further, the second air inlet 23 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, 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. The method of judging whether the second dust filter screen needs to be cleaned can be the same as the method of judging whether the first dust filter screen needs to be cleaned. The method of judging whether the second dust filter screen ends cleaning can be the same as the method of judging whether the first dust filter screen ends cleaning.

[0070] In some embodiments of the present application, as shown in Figure 6As shown, when the first filter screen needs to be cleaned and the second filter screen needs to be cleaned, the second air outlet 21 first sends air flow outward until the first filter screen is cleaned, and then the first air outlet 11 sends air flow outward. In some alternative embodiments of the present application, when the first filter screen needs to be cleaned and the second filter screen needs to be cleaned, the second air outlet 21 and the first air outlet 11 send air flow outward alternately.

[0071] 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 first filter screen needs to be cleaned so that the baffle 50 moves to the second position, the functional module 40 can also work.

[0072] 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 removing and / or sterilizing function, that is, the purification device is a dust removing device, a sterilizing device, or a device having both dust removing and sterilizing functions. Of course, the functional module 40 can also use other functional modules 40 capable of changing air quality.

[0073] 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, convenient to control, and easy to implement. Further, the air conditioner indoor unit further comprises a turntable arranged on the lower side of the second air outlet column 20, and the lower end of the second air outlet column 20 is rotatably arranged on the turntable about a horizontal axis. When the baffle 50 moves to the second position, the second air outlet column 20 is in an initial position.

[0074] When the indoor unit of the air conditioner in this embodiment of the invention is running, the first air outlet column 10 and the second air outlet column 20 can be turned on or simultaneously to supply air. The second air outlet column 20 can be rotated to a preset position to blow air as needed, or the second air outlet column 20 can be rotated at all times while blowing air, either clockwise or counterclockwise.

[0075] Specifically, in this embodiment, the airflow exiting the second air outlet 21 is formed at least under the action of the functional module 40, and the second air outlet column 20 is rotatable to facilitate the delivery of the airflow exiting the second air outlet 21. For example, when there is a high demand for airflow exiting the second air outlet 21, the delivery of the airflow exiting the second air outlet 21 can be accelerated while the second air outlet column 20 is rotated to better diffuse it to various parts of the room, thereby improving the effect of the functional module 40, such as enhancing the effects of humidification / fresh air / dust removal / sterilization / oxygenation.

[0076] Furthermore, such as Figure 1 As shown, the indoor unit of the air conditioner also includes a drive device 42, which is configured to drive the second air outlet column 20 to rotate. The drive device 42 causes the second air outlet column 20 to rotate and send out the airflow flowing out of the second air outlet 21; the drive device 42 is activated when the flow rate of the airflow flowing out of the second air outlet 21 reaches a preset value.

[0077] Furthermore, in some embodiments of the present invention, when it is necessary to change the air mixing effect, the second air outlet column 20 can also be rotated around the vertical axis. This can change the airflow direction of the airflow exiting the second air outlet 21, as well as change the air volume, to obtain different airflow effects, more airflow forms, meet the user's individual needs, and improve the user experience. Preferably, when the airflow exiting the second air outlet 21 is one or more of the following—fresh airflow, purified airflow, humidified airflow, oxygenated airflow, and water-washing airflow—mixed with indoor air, that is, when the second air outlet column 20 also blows out indoor air, a stronger air mixing effect can be achieved, making the airflow closer to room temperature.

[0078] In some embodiments of the present invention, the functional module 40 includes an airflow inlet and a second fan, the second fan causing airflow to enter the airflow inlet and then flow out from the outlet of the functional module 40. For example, the functional module 40 is a fresh air module, etc. In this case, the indoor unit of the air conditioner may include a first fan 31, a second fan, a second air inlet 23, and an airflow inlet. The airflow inlet may be connected to the second air inlet 23 so that the non-heat exchange airflow is one or more of fresh airflow, purified airflow, humidified airflow, oxygenated airflow, and water washing airflow; or the airflow inlet and the second air inlet correspond to one or more of the non-heat exchange airflow of fresh airflow, purified airflow, humidified airflow, oxygenated airflow, and water washing airflow mixed with indoor air. Further, the substance from the functional module 40 may be located on one side of the first fan 31 facing the second air outlet 21 or the other side.

[0079] 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.

[0080] 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.

[0081] 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.

[0082] 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.

[0083] 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.

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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 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, and a first air inlet is arranged on the rear side of the first air outlet column and communicates with the first air outlet; a first dust filter screen is arranged at the first air inlet; a second air outlet is formed on the front side of the second air outlet column; and the control method of the air conditioner comprises the following steps. It is determined whether the first dust filter screen needs to be cleaned; When the first dust filter screen needs to be cleaned, the baffle is moved to a second position, and the first air outlet is in a state of no air flow being delivered outward, and the second air outlet is in a state of air flow being delivered 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 air flow flowing out of the second air outlet flows to the first air inlet through the first air outlet.

2. The control method of the air conditioner according to claim 1, characterized by, Further comprising: detecting the amount of impurities on the first dust filter screen; When the amount of impurities is greater than a first impurity preset value, it is determined that the first dust filter screen needs to be cleaned.

3. The control method of the air conditioner according to claim 1, wherein Further comprising: detecting the working time length of the first dust filter screen; When the working time length is greater than a first time length preset value, it is determined that the first dust filter screen needs to be cleaned.

4. The control method of the air conditioner according to claim 1, wherein Further comprising: When the cleaning of the first dust filter screen is stopped, the baffle is moved to the first position; wherein the amount of impurities on the first dust filter screen is detected; When the amount of impurities is less than a second impurity preset value, the cleaning of the first dust filter screen is stopped; or, the time length during which the baffle is in the second position is detected; when the time length is greater than a second time length preset value, the cleaning of the first dust filter screen is stopped.

5. The control method of the air conditioner according to claim 1, wherein Further comprising: When the first air outlet and the second air outlet both stop delivering air, the baffle is moved to the second position.

6. 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 a vertical strip shape, and the second air outlet is in a vertical strip shape; 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.

7. The control method of the air conditioner according to claim 1, wherein a second air inlet is arranged on the rear side of the second air outlet column and communicates with the second air outlet, and a second dust filter screen is arranged at the second air inlet; the control method of the air conditioner further comprises the following steps. It is determined whether the second dust filter screen needs to be cleaned; When the second dust filter screen needs to be cleaned, the baffle is moved to the second position, and the second air outlet is in a state of no air flow being delivered outward, and the first air outlet is 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 flows to the second air inlet through the second air outlet.

8. The control method of the air conditioner according to claim 7, wherein When the first filter screen needs to be cleaned and the second filter screen needs to be cleaned, the second air outlet first sends air flow outward until the first filter screen is cleaned, and then the first air outlet sends air flow outward; or, When the first filter screen needs to be cleaned and the second filter screen needs to be cleaned, the second air outlet and the first air outlet alternately send air flow outward.

9. The control method of the air conditioner according to claim 7, characterized by, The air conditioner indoor unit further comprises a functional module, an outlet of the functional module being in communication with an upper end or a lower end of the second air outlet column, the functional module not working when the baffle moves to the second position; 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.

10. The control method of the air conditioner according to claim 7 or 9, characterized in that, The first air outlet column is provided with a heat exchanger and a heat exchanger fan, the heat exchanger fan making air flow from the first air inlet into the first air outlet column, and then making the air flow out of the first air outlet after heat exchange with the heat exchanger; the heat exchanger fan is a cross-flow fan; The second air outlet column is rotatably arranged on a transverse side of the first air outlet column around a vertical axis; when the baffle moves to the second position, the second air outlet column is in an initial position; The second air outlet column is provided with a first fan, the first fan making air flow from the second air inlet into the second air outlet column, and then making the air flow out of the second air outlet; the first fan is a cross-flow fan; the vertical axis is a rotation axis of the first fan; A ratio of a width of the second air outlet column along a transverse direction to a width of the first air outlet column along the transverse direction is less than 1 / 2; a ratio of a longitudinal depth dimension of the second air outlet column along a front-rear direction to a longitudinal depth dimension of the first air outlet column along the front-rear direction is less than 1 / 2; the second air outlet column is on a transverse side of a front half of the first air outlet column; The second air outlet column and the first air outlet column form an air guide interval therebetween, so that when the first air outlet and / or the second air outlet sends air flow outward, air in the air guide interval is driven to flow forward by negative pressure.

Images