Air conditioner indoor unit

Abstract

The application provides an air conditioner indoor unit, which comprises a first air outlet column, a front side of the first air outlet column being provided with a first air outlet for blowing air flow; a second air outlet column, a front side of the second air outlet column being provided with a second air outlet for blowing air flow; the second air outlet column and the first air outlet column are arranged in a transverse direction; and a baffle, when the baffle is in a second position, the air flow flowing out of the first air outlet enters the second air outlet column through the second air outlet, or the air flow flowing out of the second air outlet enters the first air outlet column through the first air outlet. By arranging the baffle, the non-heat exchange air flow can enter the first air outlet, the filter screen arranged at the first air inlet can be dusted, the non-heat exchange air flow can also remove the condensation at the first air outlet, the function of the air conditioner indoor unit is not single, the air conditioner indoor unit has multiple functions, and the practicability of the air conditioner indoor unit is improved. Special equipment is no longer arranged for dust removal and the like, the cost is low, and energy is saved.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and in particular to an indoor air conditioning unit. Background Technology

[0002] With the development of the times and the advancement of technology, users not only expect air conditioners to have faster cooling and heating speeds, but also pay increasing attention to their comfort performance. Existing vertical air conditioner indoor units typically have a vertical strip-shaped air outlet on the front of the casing, using an air guide device to achieve vertical and horizontal airflow. Based on this, some existing technologies have made many improvements to the air outlet structure, such as blowing out soft air, fresh air, and humidified airflow. However, the two air outlets in existing mixing structures are only used for mixing air, offering only a single function. Summary of the Invention

[0003] The purpose of this invention is to overcome or at least partially solve the above problems by providing an air conditioner indoor unit that can have functions such as dust removal or decondensation removal via a dust filter.

[0004] Specifically, the present invention provides an indoor unit for an air conditioner, comprising:

[0005] The first air outlet column is a vertical column, and a first air outlet for blowing out airflow is opened on the front side of the first air outlet column.

[0006] The second air outlet column is vertically shaped and has a second air outlet on its front side for blowing airflow; the second air outlet column and the first air outlet column are arranged horizontally; and

[0007] A baffle is vertically arranged and movably arranged to have a first position where the first air outlet and the second air outlet are opened, and a second position where it is located 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 first air outlet enters the second air outlet column through the second air outlet, or the airflow flowing out of the second air outlet enters the first air outlet column through the first air outlet.

[0008] Optionally, the baffle is movably disposed in the lateral direction on the front side of the first air outlet column and the second air outlet column.

[0009] Optionally, 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;

[0010] The first air outlet faces forward and towards the second air outlet column, and the second air outlet faces forward and towards the first air outlet column.

[0011] Optionally, a first air guide is installed on the first air outlet column to guide the lateral airflow direction of the first air outlet; the first air guide includes one or more first air guide plates that extend vertically and are rotatably arranged, and the last first air guide plate can be rotated to the rear edge of the second air outlet so that when the baffle is in the second position, the airflow flowing out of the first air outlet is guided to the second air outlet or the airflow flowing out of the second air outlet is guided to the first air outlet.

[0012] Optionally, a first air guide is installed on the first air outlet column to guide the lateral airflow direction of the first air outlet; the first air guide includes one or more first air guide plates that extend vertically and are rotatably arranged.

[0013] The second air outlet column is equipped with a second air guide for guiding the lateral airflow direction of the second air outlet; the second air guide includes one or more second air guide plates that extend vertically and are rotatably arranged.

[0014] Both the second air guide plate on the rearmost side and the first air guide plate on the rearmost side can be rotated so that the second air guide plate on the rearmost side is positioned behind or in front of the first air guide plate on the rearmost side, so that when the baffle is in the second position, the airflow flowing out of the first air outlet is guided to the second air outlet or the airflow flowing out of the second air outlet is guided to the first air outlet.

[0015] Optionally, the number of the first air guide plates is at least two, and the rotation axis of the last first air guide plate is located at the rear edge of the first air outlet, or the distance between the rotation axis of the last first air guide plate and the rear edge of the first air outlet is less than the distance between the first air outlet and the front edge of the first air outlet.

[0016] Optionally, the rotation axis of the second air guide plate on the rearmost side is located at the rear edge of the second air outlet, or the distance between the rotation axis of the second air guide plate on the rearmost side and the rear edge of the second air outlet is less than the distance between the second air outlet and the front edge of the second air outlet; the number of the second air guide plates is one.

[0017] Optionally, the rear edge of the second air outlet is located in front of the rear edge of the first air outlet; the front edge of the second air outlet is located behind the front edge of the first air outlet.

[0018] Optionally, the indoor unit of the air conditioner further includes a functional module, which cooperates with the second air outlet column and is configured to process the airflow flowing through it or add substances to the airflow;

[0019] The second air outlet column is rotatably disposed on one side of the first air outlet column about a vertical axis;

[0020] When the airflow velocity from the second air outlet reaches a preset value, the second air outlet column rotates.

[0021] The vertical axis passes through the second air outlet column, and the vertical axis is spaced apart from the second air outlet;

[0022] The airflow exiting the first air outlet is a heat exchange airflow, and the airflow exiting the second air outlet is a non-heat exchange airflow; the functional module is one or more of a fresh air device, an oxygenation device, a purification device, a humidification device, and a water washing device, and the corresponding non-heat exchange airflow is one or more of a fresh air flow, a purified airflow, a humidified airflow, an oxygenated airflow, and a water washing airflow, or the corresponding non-heat exchange airflow is one or more of a fresh air flow, a purified airflow, a humidified airflow, an oxygenated airflow, and a water washing airflow mixed with indoor air; the purification device has dust removal and / or sterilization functions.

[0023] Optionally, a first air inlet communicating with the first air outlet is provided on the rear side of the first air outlet column; a heat exchanger and a heat exchange fan are provided inside the first air outlet column, and the heat exchange fan causes the airflow to enter the first air outlet column from the first air inlet, exchange heat with the heat exchanger, and then flow out from the first air outlet; the heat exchange fan is a cross-flow fan.

[0024] A second air inlet, communicating with the second air outlet, is provided on the rear side of the second air outlet column. A vertically shaped air duct is provided inside the second air outlet column, and the air duct is connected to both the second air inlet and the second air outlet. A first fan is provided inside the air duct, and the first fan causes airflow to enter the air duct from the second air inlet and then flow out from the second air outlet. The first fan is a cross-flow fan. The vertical axis is the rotation axis of the first fan.

[0025] The outlet of the functional module is connected to the upper or lower end of the air duct; or, the outlet of the functional module is connected to the second air inlet.

[0026] The airflow from the first air outlet and the airflow from the second air outlet can be mixed;

[0027] The ratio of the width of the second air outlet column in the lateral direction to the width of the first air outlet column in the lateral direction is less than 1 / 2; the ratio of the depth of the second air outlet column in the front-to-back direction to the depth of the first air outlet column in the front-to-back direction is less than 1 / 2; the second air outlet column is located on one side of the front half of the first air outlet column in the lateral direction.

[0028] The second air outlet column and the first air outlet column form an air-guiding interval so that when air is discharged from the first air outlet and / or the second air outlet, the air in the air-guiding interval is driven forward by the negative pressure.

[0029] The indoor unit of this invention utilizes a first air outlet column to blow out heat-exchange airflow and a second air outlet column to blow 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, a longer air delivery distance, and better diffusion of the airflow exiting the second air outlet throughout the room. The airflow exiting the first and second air outlets can also be blown separately or without mixing. Specifically, by setting up a baffle, the non-heat-exchange airflow can enter the first air outlet to remove dust from the filter at the first air inlet, reducing air resistance at the first air inlet and significantly improving energy efficiency. It can also remove condensation at the first air outlet and can close both the first and second air outlets, thus expanding the functionality of the indoor unit to multiple functions, enhancing its practicality and intelligence. No need for dedicated equipment for dust removal, etc., resulting in lower costs.

[0030] Furthermore, by setting up a first air guide plate, the connection between the first air outlet and the second air outlet is improved, which helps the airflow between them, improves the energy efficiency of the indoor unit of the air conditioner, and is more energy-saving.

[0031] Furthermore, in the indoor unit of the air conditioner of the present invention, the airflow exiting the second air outlet is formed at least under the action of the functional module, and the airflow exiting the second air outlet is blown out independently, so that the additional functions of the indoor unit of the air conditioner do not necessarily depend on the heat exchange air duct. At the same time, the second air column can rotate, which facilitates the delivery of the airflow exiting the second air outlet. For example, when there is a high demand for the airflow exiting the second air outlet, the delivery of the airflow exiting the second air outlet can be accelerated and the second air column can be rotated at the same time, so that it can be better diffused to all parts of the room, improving the effect of the functional module, such as improving the effects of humidification / fresh air / dust removal / sterilization / oxygenation.

[0032] Furthermore, in the indoor unit of the air conditioner of the present invention, a second air outlet column is designed to be parallel to the first air outlet column. The second air outlet column is significantly smaller than the first air outlet column. This structure breaks with convention, is very novel and ingenious, and is also very unique in appearance, enhancing the decorative attributes of the household air conditioner.

[0033] 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

[0034] 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:

[0035] Figure 1 This is a schematic front view of an air conditioner indoor unit according to an embodiment of the present invention;

[0036] Figure 2 yes Figure 1 A schematic top view of the indoor unit of the air conditioner shown;

[0037] Figure 3 yes Figure 1 A schematic partial structural diagram of the indoor unit of the air conditioner shown;

[0038] Figure 4 yes Figure 1 The diagram shows a schematic reference state of an indoor air conditioning unit. Detailed Implementation

[0039] The following reference Figures 1 to 4 This invention describes an indoor air conditioning unit 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 solely for the purpose of facilitating and simplifying the description of the invention, 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 present invention.

[0040] 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.

[0041] 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.

[0042] This invention provides an indoor air conditioning unit, which is the indoor section of a split-type air conditioner, used to regulate indoor air, such as cooling / heating, dehumidifying, and introducing fresh air. The indoor air conditioning unit can be a floor-standing unit, a floor-standing unit, or a wall-mounted unit.

[0043] 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 with reference Figures 2 to 4 This invention provides an indoor air conditioning unit, which includes a first air outlet column 10, a second air outlet column 20, and a baffle 50.

[0044] The first air outlet column 10 is a vertical column, and a first air outlet 11 for blowing airflow is opened on the front side of the first air outlet column 10. The first air outlet 11 is vertical. The second air outlet column 20 is a vertical column, and a second air outlet 21 for blowing airflow is opened on the front side of the second air outlet column 20. The second air outlet 21 is vertical. The second air outlet column 20 and the first air outlet column 10 are arranged horizontally. The left-right direction, which is perpendicular to the front-back direction of the indoor unit of the air conditioner, is called "horizontal".

[0045] Specifically, the airflow exiting the first air outlet 11 is a heat exchange airflow. "Heat exchange airflow" refers to the airflow that exchanges heat with the air conditioner's heat exchanger 14 to regulate the indoor temperature. The heat exchanger 14, along with the compressor, the outdoor unit's heat exchanger, the throttling device, and other refrigeration components, forms a vapor compression refrigeration cycle system via pipelines. When the indoor unit is in cooling mode, the heat exchange airflow is cold air. When the indoor unit is in heating mode, the heat exchange airflow is hot air. The heat exchange airflow is blown into the indoor environment through the first air outlet 11, completing the cooling and heating of the indoor environment. The airflow exiting the second air outlet 21 is a non-heat exchange airflow, which serves to assist in regulating the indoor environment. During operation of the indoor unit of this embodiment of the air conditioner, the first air outlet column 10 and the second air outlet column 20 can be selectively or simultaneously activated.

[0046] In this embodiment of the invention, the baffle 50 is vertically arranged and movably arranged so that the baffle 50 has a first position with the first air outlet 11 and the second air outlet 21 open, and a second position located in front of the first air outlet 11 and the second air outlet 21, such as... Figure 2 As shown. When the baffle 50 is in the second position, it causes the airflow exiting the first air outlet 11 to enter the second air outlet column 20 through the second air outlet 21, or causes the airflow exiting the second air outlet 21 to enter the first air outlet column 10 through the first air outlet 11.

[0047] By setting up baffle 50, non-heat exchange airflow can enter the first air outlet 11 to remove dust from the filter screen installed at the first air inlet 13. It can also remove condensation at the first air outlet 11, thus expanding the functionality of the indoor air conditioning unit beyond its single function and improving its practicality. This eliminates the need for dedicated dust removal equipment, resulting in lower costs and energy savings.

[0048] In some embodiments of the present invention, the first air outlet 11 faces forward and towards the second air outlet column 20, that is, the first air outlet 11 faces diagonally forward, and the second air outlet 21 faces forward and towards the first air outlet column 10, that is, the second air outlet 21 faces diagonally forward. Further, the rear edge of the second air outlet 21 is located in front of the rear edge of the first air outlet 11; the front edge of the second air outlet 21 is located behind the front edge of the first air outlet 11. A display device 18 is provided on the front side of the first air outlet column 10, and the display device 18 is located on the side of the first air outlet 11 opposite to the second air outlet 21.

[0049] In some embodiments of the present invention, the baffle 50 is movably disposed in the lateral direction in front of the first air outlet column 10 and the second air outlet column 20. The structure is simple, easy to implement, easy to control, and low in cost. In its initial position, the baffle 50 is located in front of the display device 18. The baffle 50 is preferably a transparent plate.

[0050] In some embodiments of the present invention, a first air guide is installed on the first air outlet column 10 to guide the lateral airflow direction of the first air outlet 11. The first air guide may include multiple first air guide plates 12. "Guiding the lateral airflow direction" refers to changing the angle between the airflow direction and the front-to-back direction, such as directing the airflow towards the front, left front, right front, etc. A second air guide is installed on the second air outlet column 20 to guide the lateral airflow direction of the second air outlet 21. The second air guide may include multiple second air guide plates 22. The main control board of the air conditioner can be electrically connected to both the first air guide and the motor of the first air guide to control their coordinated operation.

[0051] Specifically, the first air guide plate 12 on the rearmost side can be rotated to the rear edge of the second air outlet 21 so that when the baffle 50 is in the second position, it can guide the airflow from the first air outlet 11 to the second air outlet 21 or guide the airflow from the second air outlet 21 to the first air outlet 11.

[0052] In other embodiments of the present invention, both the second air guide plate 22 on the rearmost side and the first air guide plate 11 on the rearmost side can be rotated such that the second air guide plate 22 on the rearmost side is positioned behind or in front of the first air guide plate 11 on the rearmost side, so that when the baffle 50 is in the second position, the airflow flowing out of the first air outlet 11 is guided to the second air outlet 21 or the airflow flowing out of the second air outlet 21 is guided to the first air outlet 11.

[0053] In some embodiments of the present invention, the number of first air guide plates 12 is at least two, and the rotation axis of the rearmost first air guide plate 12 is located at the rear edge of the first air outlet, or the distance between the rotation axis of the rearmost first air guide plate 12 and the rear edge of the first air outlet is less than the distance between the rear and front edges of the first air outlet. The rotation axis of the rearmost second air guide plate 22 is located at the rear edge of the second air outlet, or the distance between the rotation axis of the rearmost second air guide plate 22 and the rear edge of the second air outlet is less than the distance between the rear and front edges of the second air outlet; the number of second air guide plates 22 is one. Preferably, the number of first air guide plates 12 is two, and the number of second air guide plates 22 is one.

[0054] In some embodiments of the present invention, the lower or upper end of the second air outlet column 20 is rotatably arranged around a horizontal axis, which is perpendicular to the plane where the first air outlet 11 is located, so that the second air outlet column 20 can rotate to the front of the first air outlet and block part of the first air outlet. By tilting the second air outlet column 20, it can block part of the first air outlet 11, such as the area with the highest or lowest air temperature, making the air temperature of the first air outlet 11 more uniform and improving user comfort. Of course, the blocking can also be adjusted according to user needs to enhance the user experience.

[0055] Furthermore, the indoor unit of the air conditioner also includes multiple temperature sensors, which are arranged vertically at the first air outlet 11 to detect the air outlet temperature at multiple locations along the top and bottom of the first air outlet 11. Based on the air outlet temperature, the second air outlet column 20 rotates to the front of the area of ​​the first air outlet 11 corresponding to the specific air outlet temperature. Specifically, the first air outlet 11 is divided into six areas, and the air outlet temperature of each of these six areas is detected by six temperature sensors. During heating, the second air outlet column 20 rotates to the front of the area of ​​the first air outlet 11 corresponding to the lowest air outlet temperature; during cooling, the second air outlet column 20 rotates to the front of the area of ​​the first air outlet 11 corresponding to the highest air outlet temperature.

[0056] In some embodiments of the present invention, such as Figure 1 As shown, the airflow exiting the first air outlet 11 and the airflow exiting the second air outlet 21 can be mixed. The airflow exiting the second air outlet 21 can be a non-heat exchange airflow. The airflow exiting the first air outlet 11 and the airflow exiting the second air outlet 21 can mix after being blown out to form a mixed airflow. The temperature of the mixed airflow is closer to room temperature than that of the heat exchange airflow, resulting in higher comfort, a gentler breeze, increased air volume and speed, a longer air delivery distance, and better diffusion of the airflow exiting the second air outlet 21 to all parts of the room.

[0057] In some embodiments of the present invention, such as Figure 1 As shown, an air-guiding gap 16 is formed between the second air outlet column 20 and the first air outlet column 10, so that when air is discharged from the first air outlet 11 and / or the second air outlet 21, the air within the air-guiding gap 16 is driven forward by the negative pressure. Thus, when air is discharged from the first air outlet column 10 and / or the second air outlet column 20, a negative pressure environment is created at the air-guiding gap 16, causing the indoor air behind the indoor unit of the vertical air conditioner to flow forward through the air-guiding gap 16 to mix with the airflow from the first air outlet column 10 or the second air outlet column 20. This results in a larger volume and faster mixing of indoor air, creating a stronger mixing effect. The temperature of the mixed airflow is closer to room temperature than the heat exchange airflow, providing higher comfort, a softer breeze, increased air volume and velocity, and a longer delivery distance.

[0058] In some embodiments of the present invention, such as Figure 1 As shown, the first air outlet 11 and the second air outlet 21 can be a whole vertical strip extending from top to bottom, or they can be a discontinuous vertical strip composed of multiple vertically arranged sub-air outlets.

[0059] In some embodiments of the present invention, since there is no need to install a heat exchanger 14 inside the second air outlet column 20, the second air outlet column 20 can be designed to be thinner, making it significantly thinner than the first air outlet column 10. This asymmetrical design not only meets the air outlet requirements, but also makes the appearance of the air conditioner indoor unit more novel and unique, thereby enhancing the product's competitiveness.

[0060] For example, such as Figures 1 to 4 As 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-to-back direction to the depth of the first air outlet column 10 in the front-to-back direction can also be less than 1 / 2, to create a differentiated appearance between the two columns. The front-to-back positions of the second air outlet 21 and the first air outlet 11 can be aligned or substantially aligned, for example, the front-to-back distance between them can not exceed 10cm, so that the non-heat exchange airflow and the heat exchange airflow can be better mixed. That is to say, the second air outlet column 20 is mainly located on one side of the front half of the first air outlet column 10 in the lateral direction; or, in other words, most or all of the second air outlet column 20 is located on one side of the front half of the first air outlet column 10 in the lateral direction.

[0061] In some embodiments of the present invention, such as Figure 2 As shown, a first air inlet 13 communicating with a first air outlet 11 is provided on the rear side of the first air outlet column 10. A heat exchanger 14 and a heat exchange fan 15 are provided inside the first air outlet column 10. The heat exchange fan 15 directs the heat-exchanged airflow after passing through the heat exchanger 14 out of the first air outlet 11. At this time, the airflow exiting the first air outlet 11 is the heat-exchanged airflow. The heat exchange fan is preferably a cross-flow fan. In some alternative embodiments, the heat exchange fan 15 may be multiple axial flow fans or centrifugal fans arranged sequentially in the vertical direction.

[0062] In some embodiments of the present invention, such as Figure 2 As shown, a second air inlet 23, communicating with the second air outlet 21, is provided on the rear side of the second air outlet column 20. A vertically shaped air duct is provided inside the second air outlet column 20, communicating with both the second air inlet 23 and the second air outlet 21. A first fan 31 is installed inside the air duct, directing airflow from the second air inlet 23 into the air duct and then out through the first air outlet 11; the first fan 31 is a cross-flow fan. By setting a baffle 50, the airflow exiting the first air outlet 11 can enter the second air outlet 21 to remove dust from the filter screen installed at the second air inlet 23, thus expanding the functionality of the indoor air conditioning unit to include multiple functions and improving its practicality.

[0063] In some embodiments of the present invention, the indoor unit of the air conditioner further includes a functional module 40. The functional module 40 is configured to process gas flowing through it or to add substances to the gas flow, and the functional module 40 cooperates with the second air outlet column 20. The outlet of the functional module 40 is connected to the upper or lower end of the air duct; or, the outlet of the functional module 40 is connected to the second air inlet 23.

[0064] Functional module 40 can be one or more of the following: a fresh air device, an oxygenation device, a purification device, a humidification device, and a water washing device. When the outlet of functional module 40 is connected to the second air inlet 23, the corresponding non-heat exchange airflow is one or more of the following: fresh air flow, purified airflow, humidified airflow, oxygenated airflow, and water washing airflow. When the outlet of functional module 40 is connected to the upper or lower end of the duct, the corresponding non-heat exchange airflow is one or more of the following: fresh air flow, purified airflow, humidified airflow, oxygenated airflow, and water washing airflow, mixed with indoor air. That is, the second air outlet 21 is simultaneously connected to an indoor air inlet and the outlet of functional module 40, and the indoor air at the indoor air inlet mixes with the substances or gases from functional module 40. Furthermore, the purification device has dust removal and / or sterilization functions, i.e., the purification device is a dust removal device, a sterilization device, or a device that has both dust removal and sterilization functions. Of course, functional module 40 can also be other functional modules 40 capable of changing air quality.

[0065] In some embodiments of the present invention, 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 is spaced apart from the second air outlet 21; of course, the vertical axis can also be in other positions. Preferably, the vertical axis is the axis of the first fan 31. This arrangement allows only the second air outlet column 20 to rotate, without the cross-flow fan needing to rotate with it, resulting in a simple structure, convenient control, and easy implementation. Furthermore, the indoor unit of the air conditioner also includes a turntable located below 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 on the turntable about a horizontal axis.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] In some alternative embodiments of the present invention, when the airflow inlet is connected to the second air inlet 23, only one of the first fan 31 and the second fan needs to be selected. In other alternative embodiments of the present invention, when the airflow inlet is connected to the lower or upper end of the duct and does not have a second air inlet 23, only the second fan is required.

[0072] In some embodiments of the present invention, the functional module 40 includes only an outlet, such as a humidifier, an oxygenator, etc. The substance from the functional module 40 may be located on one side or the other side of the first fan 31 facing the second air outlet 21 to mix into the indoor air from the second air inlet 23.

[0073] In some embodiments of the present invention, such as Figure 1 As shown, the indoor unit of the air conditioner also includes a lower casing 30, a first air outlet column 10 and a second air outlet column 20 disposed at the top of the lower casing 30, and a functional module 40 disposed inside the lower casing 30. The second fan is an axial flow fan or a centrifugal fan. The first air outlet column 10 and the second air outlet column 20 are disposed at the top of the lower casing 30, which provides support and also provides installation space for the functional module 40. The lower casing 30 has a fresh air inlet and at least one indoor air inlet, both of which are selectively connected to the air inlet of the second fan or simultaneously connected to the air inlet of the second fan. A fresh air duct is connected to the fresh air inlet to introduce fresh airflow from the outside.

[0074] In some embodiments of the present invention, the functional module 40 is a humidification device that delivers water mist to the lower end of the air duct. The water mist mixes with the airflow entering from the second air inlet and is blown out from the second air outlet 21. The indoor unit of the air conditioner may have the following operating modes: When the indoor humidity is less than the first preset humidity, neither the functional module 40 nor the first fan 31 works. When the indoor humidity is less than the second preset humidity and greater than the first preset humidity, the functional module 40 works and the first fan 31 operates at low speed. When the indoor humidity is less than the third preset humidity and greater than the second preset humidity, the functional module 40 works and the first fan 31 operates at high speed. When the indoor humidity is greater than the third preset humidity, the functional module 40 works and the first fan 31 operates at high speed, and the second air outlet column 20 rotates clockwise or counterclockwise to blow water vapor to all sides through rotation, thereby improving the humidification effect. The second air outlet column 20 rotates continuously, either clockwise or counterclockwise. 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 invention, the second air outlet column 20 can be rotated to a certain position and then remain in that position for a period of time.

[0075] Furthermore, when functional module 40 is another type of module, it can also operate in a similar mode as described above. Furthermore, the fresh air system can be controlled based on the indoor carbon dioxide concentration, the dust removal system based on the indoor PM2.5 concentration, the sterilization system based on the indoor germ concentration, and the oxygen supply system based on the oxygen concentration.

[0076] In some embodiments of the present invention, the second air outlet column 20 is movably arranged around the first air outlet column 10 along a preset trajectory, so that the second air outlet column 20 has at least two relative positions to the first air outlet column 10.

[0077] For example, the second air outlet column 20 has an initial position, and also a second position in the direction of the airflow from the first air outlet 11 to block the first air outlet 11 and prevent it from blowing directly on the user. Alternatively, the second air outlet column 20 may have an initial position and also a third position between the first air outlet 11 and the user's position to block the first air outlet 11 and prevent the airflow from the first air outlet 11 from blowing directly on the user. Furthermore, the user's position can be detected by a human sensor, and then the second air outlet column 20 can be controlled to move between the user's position and the first air outlet 11.

[0078] In some embodiments of the present invention, the second air outlet column 20 has an initial position, and the second air outlet column 20 also has a fourth position, in which the second air outlet 21 can be rotated to be aligned with the first air inlet 13, or the second air outlet column 20 also has a fifth position, in which the second air inlet 23 can be rotated to be aligned with the first air outlet 11.

[0079] Furthermore, the second air outlet column 20 can be moved to the aforementioned initial position, second position, third position, fourth position, and fifth position, or to other positions beyond these five, to achieve diversified air supply. Furthermore, the line connecting the two ends of the preset trajectory is collinear with the line connecting the two opposite corners of the first air outlet column 10; or, the two ends of the preset trajectory 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 exchanger fan.

[0080] Therefore, those skilled in the art should recognize that although numerous exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications conforming to the principles of the present invention can be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Thus, the scope of the present invention should be understood and construed as covering all such other variations or modifications.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The first air outlet column is a vertical column, and a first air outlet for blowing out airflow is opened on the front side of the first air outlet column. The second air outlet column is vertically shaped and has a second air outlet on its front side for blowing airflow; the second air outlet column and the first air outlet column are arranged horizontally; and A baffle is vertically arranged and movably arranged to have a first position where the first air outlet and the second air outlet are opened, and a second position where it is located 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 first air outlet enters the second air outlet column through the second air outlet, or the airflow flowing out of the second air outlet enters the first air outlet column through the first air outlet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The baffle is movably disposed in the lateral direction in front of the first air outlet column and the second air outlet column.

3. The indoor unit of the air conditioner according to claim 1, characterized in that, 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 towards the second air outlet column, and the second air outlet faces forward and towards the first air outlet column.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The first air outlet column is equipped with a first air guide for guiding the horizontal airflow direction of the first air outlet; the first air guide includes one or more first air guide plates that extend vertically and are rotatably arranged, and the last first air guide plate can be rotated to the rear edge of the second air outlet so that when the baffle is in the second position, the airflow flowing out of the first air outlet is guided to the second air outlet or the airflow flowing out of the second air outlet is guided to the first air outlet.

5. The indoor unit of the air conditioner according to claim 3, characterized in that, The first air outlet column is equipped with a first air guide for guiding the lateral airflow direction of the first air outlet; the first air guide includes one or more first air guide plates that extend vertically and are rotatably arranged. The second air outlet column is equipped with a second air guide for guiding the lateral airflow direction of the second air outlet; the second air guide includes one or more second air guide plates that extend vertically and are rotatably arranged. Both the second air guide plate on the rearmost side and the first air guide plate on the rearmost side can be rotated so that the second air guide plate on the rearmost side is positioned behind or in front of the first air guide plate on the rearmost side, so that when the baffle is in the second position, the airflow flowing out of the first air outlet is guided to the second air outlet or the airflow flowing out of the second air outlet is guided to the first air outlet.

6. The indoor unit of the air conditioner according to claim 4 or 5, characterized in that, The number of the first air guide plates is at least two, and the rotation axis of the last first air guide plate is located at the rear edge of the first air outlet, or the distance between the rotation axis of the last first air guide plate and the rear edge of the first air outlet is less than the distance between the first air outlet and the front edge of the first air outlet.

7. The indoor unit of the air conditioner according to claim 5, characterized in that, The rotation axis of the second air guide plate on the rearmost side is located at the rear edge of the second air outlet, or the distance between the rotation axis of the second air guide plate on the rearmost side and the rear edge of the second air outlet is less than the distance between the second air outlet and the front edge of the second air outlet; the number of the second air guide plates is one.

8. The indoor unit of the air conditioner according to claim 3, characterized in that, The rear edge of the second air outlet is located in front of the rear edge of the first air outlet; The front edge of the second air outlet is located behind the front edge of the first air outlet.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, It also includes a functional module, which works in conjunction with the second air outlet column, and the functional module is configured to process the airflow flowing through it or to add substances to the airflow; The second air outlet column is rotatably disposed on one side of the first air outlet column about a vertical axis; When the airflow velocity from the second air outlet reaches a preset value, the second air outlet column rotates. The vertical axis passes through the second air outlet column, and the vertical axis is spaced apart from the second air outlet; The airflow exiting the first air outlet is a heat exchange airflow, and the airflow exiting the second air outlet is a non-heat exchange airflow; the functional module is one or more of a fresh air device, an oxygenation device, a purification device, a humidification device, and a water washing device, and the corresponding non-heat exchange airflow is one or more of a fresh air flow, a purified airflow, a humidified airflow, an oxygenated airflow, and a water washing airflow, or the corresponding non-heat exchange airflow is one or more of a fresh air flow, a purified airflow, a humidified airflow, an oxygenated airflow, and a water washing airflow mixed with indoor air; the purification device has dust removal and / or sterilization functions.

10. The indoor unit of the air conditioner according to claim 9, characterized in that, The first air outlet column is provided with a first air inlet connected to the first air outlet on its rear side; a heat exchanger and a heat exchange fan are provided inside the first air outlet column, and the heat exchange fan causes the airflow to enter the first air outlet column from the first air inlet, exchange heat with the heat exchanger, and then flow out from the first air outlet; the heat exchange fan is a cross-flow fan. A second air inlet, communicating with the second air outlet, is provided on the rear side of the second air outlet column. A vertically shaped air duct is provided inside the second air outlet column, and the air duct is connected to both the second air inlet and the second air outlet. A first fan is provided inside the air duct, and the first fan causes airflow to enter the air duct from the second air inlet and then flow out from the second air outlet. The first fan is a cross-flow fan. The vertical axis is the rotation axis of the first fan. The outlet of the functional module is connected to the upper or lower end of the air duct; or, the outlet of the functional module is connected to the second air inlet. The airflow from the first air outlet and the airflow from the second air outlet can be mixed; The ratio of the width of the second air outlet column in the lateral direction to the width of the first air outlet column in the lateral direction is less than 1 / 2; the ratio of the depth of the second air outlet column in the front-to-back direction to the depth of the first air outlet column in the front-to-back direction is less than 1 / 2; the second air outlet column is located on one side of the front half of the first air outlet column in the lateral direction. The second air outlet column and the first air outlet column form an air-guiding interval so that when air is discharged from the first air outlet and / or the second air outlet, the air in the air-guiding interval is driven forward by the negative pressure.

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