Vertical air conditioner indoor unit

Abstract

The application provides a vertical air conditioner indoor unit, which comprises a first air outlet column and a second air outlet column. The first air outlet column is provided with a first air outlet air duct for blowing heat exchange air flow, and the first air outlet air duct is provided with a first air outlet surface and a second air outlet surface arranged oppositely. The second air outlet column is provided with a second air outlet air duct for blowing non-heat exchange air flow, and the second air outlet air duct is provided with a third air outlet surface and a fourth air outlet surface arranged oppositely. The first air outlet column and the second air outlet column are arranged to form an air guide interval. The first air outlet surface comprises a first integrated air guide surface, and the fourth air outlet surface comprises a second integrated air guide surface. The first integrated air guide surface and the second integrated air guide surface are arranged oppositely to form an air uniformization air outlet duct, and at least part of the air uniformization air outlet duct from the front end is tapered from back to front. The vertical air conditioner indoor unit provided by the application has good air uniformization effect, and can accelerate the air outlet speed of the air flow, so that the air supply distance is farther, and the heat exchange efficiency in the room is higher.

Description

Technical Field

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

[0002] With the increasing popularity of air conditioning, users have higher and higher requirements for the comfort and health of air delivery. Traditional air conditioning units have a fixed air volume, and the cold air blows directly on people, which can easily lead to air conditioning sickness if used for a long time.

[0003] Traditional floor-standing air conditioner indoor unit air supply schemes suffer from a trade-off between airflow and noise, limiting the maximum airflow to a certain range. Furthermore, the cold air blown out by the air conditioner is relatively low in temperature, causing discomfort when blown directly onto people and negatively impacting the user experience. Traditional air diversion schemes primarily rely on airflow at the outlet to drive airflow through the diversion vents. While this can achieve a mixing effect of hot and cold air, the diverted airflow is limited, and the effect on uniform airflow is not significant. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a vertical air conditioner indoor unit that overcomes or at least partially solves the above problems, resulting in good air distribution, faster airflow speed, longer air delivery distance, and higher indoor heat exchange efficiency.

[0005] Specifically, the present invention provides a vertical air conditioner indoor unit, comprising:

[0006] The first air outlet column has a first air outlet duct for blowing out heat exchange airflow, and the first air outlet duct has a first air outlet surface and a second air outlet surface that are arranged opposite to each other.

[0007] The second air column has a second air duct for blowing out non-heat exchange airflow, and the second air duct has a third air outlet surface and a fourth air outlet surface that are arranged opposite to each other.

[0008] The first and second air outlet columns are arranged horizontally, and an air intake interval is formed between them;

[0009] The first air outlet surface, the second air outlet surface, the air intake interval, the third air outlet surface, and the fourth air outlet surface are arranged sequentially in the horizontal direction;

[0010] The front edge of the second air outlet surface is located obliquely behind the front edge of the first air outlet surface, and the front edge of the third air outlet surface is located obliquely behind the front edge of the fourth air outlet surface.

[0011] The first air outlet surface includes a first converging air guide surface that arches backward from the front edge of the first air outlet surface and in a direction away from the second air outlet column; the fourth air outlet surface includes a second converging air guide surface that arches backward from the front edge of the fourth air outlet surface and in a direction away from the first air outlet column.

[0012] The first and second aggregated air guide surfaces are arranged opposite to each other to form a uniform air outlet duct, and at least a portion of the uniform air outlet duct, starting from the front end, gradually narrows from back to front.

[0013] Optionally, the uniform air outlet duct gradually expands from back to front and then gradually narrows.

[0014] Optionally, the angle between the tangent at the front edge of the first air outlet surface and the vertical plane extending in the lateral direction is greater than the angle between the tangent at the front edge of the fourth air outlet surface and the vertical plane extending in the lateral direction.

[0015] Optionally, the second air outlet surface is used to direct the airflow flowing along it forward and diagonally forward of the second air outlet column;

[0016] The third air outlet is used to direct the airflow along it forward and diagonally forward of the first air outlet column.

[0017] Optionally, the vertical planes extending in the front-rear direction where the front edge of the first air outlet surface, the front edge of the second air outlet surface, the front edge of the third air outlet surface, and the front edge of the fourth air outlet surface are respectively the first vertical plane, the second vertical plane, the third vertical plane, and the fourth vertical plane;

[0018] The distance between the first vertical plane and the second vertical plane is 3 to 8 times the distance between the third vertical plane and the fourth vertical plane;

[0019] The front end of the air-guiding interval extends in the front-back direction, and the width of the air-guiding interval is 1.5 to 3.5 times the distance between the third vertical plane and the fourth vertical plane.

[0020] Optionally, the vertical air conditioner indoor unit further includes an air guide plate for horizontal air guidance. The air guide plate is rotatably disposed in the uniform air outlet duct, and there are multiple air guide plates arranged sequentially along the horizontal direction.

[0021] Optionally, the front surface of the first air outlet column and the front surface of the second air outlet column are on the same vertical plane, and the rear surface of the first air outlet column is behind the rear surface of the second air outlet column; in the transverse direction, the length of the first air outlet column is greater than the length of the second air outlet column.

[0022] Optionally, the first air outlet column is provided with a first air inlet communicating with the first air outlet duct; 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 to form the heat exchange airflow, and flow out from the first air outlet duct; the heat exchange fan is a cross-flow fan.

[0023] The first air outlet surface is connected to the volute of the heat exchanger fan.

[0024] Optionally, the second air outlet column is provided with a second air inlet communicating with the second air outlet duct, and a non-heat exchange fan is provided inside the second air outlet column. The non-heat exchange fan causes airflow to enter the second air outlet column from the second air inlet and then flow out from the second air outlet duct. The non-heat exchange fan is a cross-flow fan. The fourth air outlet surface is connected to the volute of the non-heat exchange fan.

[0025] Optionally, the vertical air conditioner indoor unit further includes:

[0026] The lower shell is disposed below the first air outlet column and the second air outlet column;

[0027] A functional module is disposed within the lower housing; the functional module is configured to process gas flowing through it or to add substances to the gas flow, and the functional module cooperates with the second air outlet column to form the non-heat exchange gas flow at least within the second air outlet column.

[0028] Optionally, an airflow inlet is provided on the lower shell;

[0029] The functional module includes a downdraft fan, which causes airflow to enter the airflow inlet and then flow out from the outlet of the functional module; the outlet of the functional module is connected to the second air outlet duct.

[0030] Optionally, the outlet of the functional module is connected to the second air outlet duct on the air inlet side of the non-heat exchanger fan.

[0031] In the vertical air conditioner indoor unit of the present invention, when air is discharged from the first air outlet duct and the second air outlet duct, the indoor airflow is driven out from the air intake interval by the negative pressure. The heat exchange airflow, the non-heat exchange airflow and the indoor airflow are mixed in the uniform air outlet duct to form a cool but not cold mixed airflow before being blown out. That is, the second air outlet duct actively introduces airflow and the air intake interval passively introduces airflow. The air intake volume is large. The uniform air outlet duct shortens the mixing distance of the three airflows and the uniform airflow effect is better. Moreover, the front part of the uniform air outlet duct gradually narrows from back to front, which can accelerate the airflow speed, make the air delivery distance longer, and the indoor heat exchange efficiency higher.

[0032] 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

[0033] The following sections will describe some specific embodiments of the invention in detail 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:

[0034] Figure 1 This is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention;

[0035] Figure 2 This is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention, wherein the air guide plate faces the front center of the uniform air outlet duct;

[0036] Figure 3 This is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention, wherein the air guide plate faces the side front;

[0037] Figure 4 This is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention, wherein the air guide plate extends in the front-to-back direction;

[0038] Figure 5 This is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention, wherein the air guide plate extends in the lateral direction. Detailed Implementation

[0039] The following reference Figures 1 to 5 This invention describes a vertical air conditioner indoor unit according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present 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 described, this indicates that other features are not excluded and may be further included.

[0040] Unless otherwise expressly specified and limited, the terms "set up," "install," "connect," "link," "fix," and "couple" 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.

[0041] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0042] In the description of this embodiment, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Figure 1 This is a schematic structural diagram of a vertical air conditioner indoor unit 100 according to an embodiment of the present invention, as shown below. Figure 1 As shown, and with reference Figures 2 to 5This invention provides a vertical air conditioner indoor unit 100, including a first air outlet column 110 and a second air outlet column 120. The first air outlet column 110 has a first air outlet duct for blowing out heat exchange airflow, and the first air outlet duct has a first air outlet surface 111 and a second air outlet surface 112 arranged opposite to each other. The second air outlet column 120 has a second air outlet duct for blowing out non-heat exchange airflow, and the second air outlet duct has a third air outlet surface 121 and a fourth air outlet surface 122 arranged opposite to each other. The first air outlet column 110 and the second air outlet column 120 are arranged laterally, and an air intake interval 130 is formed between them. The first air outlet surface 111, the second air outlet surface 112, the air intake interval 130, the third air outlet surface 121, and the fourth air outlet surface 122 are arranged sequentially in the lateral direction. The front edge of the second air outlet surface 112 is obliquely behind the front edge of the first air outlet surface 111, and the front edge of the third air outlet surface 121 is obliquely behind the front edge of the fourth air outlet surface 122. The first air outlet surface 111 includes a first converging air guide surface that arches backward from the front edge of the first air outlet surface 111 and away from the second air outlet column 120. The fourth air outlet surface 122 includes a second converging air guide surface that arches backward from the front edge of the fourth air outlet surface 122 and away from the first air outlet column 110. The first converging air guide surface and the second converging air guide surface are arranged opposite to each other to form a uniform air outlet duct 140, such that at least a portion of the uniform air outlet duct 140 starting from the front end gradually narrows from back to front.

[0044] In the vertical air conditioner indoor unit 100 of this embodiment, when air is discharged from the first air outlet duct and the second air outlet duct, the indoor airflow is driven out from the air intake interval 130 by the negative pressure. The heat exchange airflow, the non-heat exchange airflow and the indoor airflow are mixed in the uniform air outlet duct 140 to form a cool but not cold mixed airflow before being discharged. The uniform air outlet duct 140 shortens the mixing distance of the three airflows, resulting in a better uniform airflow effect. Moreover, a portion of the front end of the uniform air outlet duct 140 gradually narrows from back to front, which can accelerate the airflow speed, resulting in a longer air delivery distance and higher indoor heat exchange efficiency.

[0045] In some embodiments of the present invention, such as Figures 2 to 5 As shown, the uniform air outlet duct 140 gradually expands from back to front and then gradually narrows. The uniform air outlet duct 140 includes a gradually expanding section and a gradually narrowing section connected sequentially from back to front. The connection between the expanding and narrowing sections is smooth, which is beneficial to airflow. The expanding section facilitates the entry of airflow from the first air outlet duct, the second air outlet duct, and the air intake interval 130 into the uniform air outlet duct 140, while the narrowing section pressurizes the airflow, accelerating its flow. The combined use of the expanding and narrowing sections allows the airflow to mix thoroughly within the uniform air outlet duct 140 and is then accelerated before being blown out.

[0046] In some embodiments of the present invention, the angle between the tangent at the front edge of the first air outlet surface 111 and the vertical plane extending in the lateral direction is greater than the angle between the tangent at the front edge of the fourth air outlet surface 122 and the vertical plane extending in the lateral direction. By adjusting the angle between the tangent at the front edge of the first air outlet surface 111 and the vertical plane extending in the lateral direction, and the angle between the tangent at the front edge of the fourth air outlet surface 122 and the vertical plane extending in the lateral direction, the degree of convergence of the uniform air outlet duct 140 can be achieved, thereby adjusting the air outlet speed. That is, the greater the degree of convergence of the uniform air outlet duct 140, the smaller the outlet at its front end, the higher the air outlet speed, and the farther the air outlet distance.

[0047] In some embodiments of the invention, the second air outlet surface 112 is used to direct the airflow flowing along it forward and obliquely forward of the second air outlet column 120. The third air outlet surface 121 is used to direct the airflow flowing along it forward and obliquely forward of the first air outlet column 110. For example... Figures 2 to 5 As shown, at least a portion of the second air outlet surface 112, starting from its front end, extends rearward from its front end and in a direction away from the second air outlet column 120 to its rear end. At least a portion of the third air outlet surface 121, starting from its front end, extends rearward from its front end and in a direction away from the first air outlet column 110 to its rear end.

[0048] In some embodiments of the present invention, the vertical planes extending in the front-rear direction containing the front edges of the first air outlet surface 111, the second air outlet surface 112, the third air outlet surface 121, and the fourth air outlet surface 122 are respectively a first vertical plane, a second vertical plane, a third vertical plane, and a fourth vertical plane. The distance between the first vertical plane and the second vertical plane is 3 to 8 times the distance between the third vertical plane and the fourth vertical plane. Preferably, the distance between the first vertical plane and the second vertical plane is 5.5 times the distance between the third vertical plane and the fourth vertical plane. The front end of the air intake gap 130 extends in the front-rear direction, and the width of the front end of the air intake gap 130 is 1.5 to 3.5 times the distance between the third vertical plane and the fourth vertical plane. Preferably, the width of the front end of the air intake gap 130 is 2.5 times the distance between the third vertical plane and the fourth vertical plane.

[0049] In some embodiments of the present invention, such as Figures 2 to 5As shown, the vertical air conditioner indoor unit 100 also includes air guide plates 150 for horizontal airflow guidance. The air guide plates 150 are rotatably disposed within the uniform air outlet duct 140. Multiple air guide plates 150 are arranged sequentially along the horizontal direction. The multiple air guide plates 150 work together to direct the airflow from the uniform air outlet duct 140 in different directions to meet different user requirements. Specifically, when the multiple air guide plates 150 rotate to a position parallel to the horizontal direction, the uniform air outlet duct 140 can be closed. At this time, the multiple air guide plates 150 are at the junction of the expanding and contracting sections. For example, when the vertical air conditioner indoor unit 100 is turned off, the multiple air guide plates 150 automatically rotate to a position parallel to the horizontal direction to close the uniform air outlet duct 140, preventing dust and other debris from entering the vertical air conditioner indoor unit 100 when it is not in use.

[0050] In some embodiments of the present invention, such as Figures 2 to 5 As shown, the front surfaces of the first air outlet column 110 and the second air outlet column 120 are on the same vertical plane, and the rear surface of the first air outlet column 110 is located behind the rear surface of the second air outlet column 120. In the lateral direction, the length of the first air outlet column 110 is greater than the length of the second air outlet column 120. That is, the dimensions of the first air outlet column 110 are larger than the dimensions of the second air outlet column 120 both in the front-to-back direction and in the lateral direction, resulting in an asymmetrical design for the vertical air conditioner indoor unit 100, a more novel and unique appearance, and enhanced product competitiveness.

[0051] In some embodiments of the present invention, such as Figures 2 to 5 As shown, a first air inlet communicating with a first air outlet duct is provided on the first air outlet column 110. A heat exchanger 113 and a heat exchange fan 114 are installed inside the first air outlet column 110. The heat exchange fan 114 directs airflow from the first air inlet into the first air outlet column 110, where it exchanges heat with the heat exchanger 113 to form a heat-exchanged airflow, which then flows out from the first air outlet duct. The heat exchange fan 114 is a cross-flow fan. The first air outlet surface 111 is connected to the volute of the heat exchange fan 114, and this connection is naturally smoothed, resulting in smoother airflow and lower noise.

[0052] In some embodiments of the present invention, such as Figures 2 to 5 As shown, the second air outlet column 120 is provided with a second air inlet communicating with the second air outlet duct. A non-heat exchange fan 123 is installed inside the second air outlet column 120. The non-heat exchange fan 123 causes airflow to enter the second air outlet column 120 from the second air inlet and then flow out from the second air outlet duct. The non-heat exchange fan 123 is a cross-flow fan. The fourth air outlet surface 122 is connected to the volute of the non-heat exchange fan 123, and the connection is naturally transitioned, making the air delivery smoother and the noise lower.

[0053] In some embodiments of the present invention, such as Figure 1As shown, the vertical air conditioner indoor unit 100 also includes a lower housing 160 and a functional module 170. The lower housing 160 is disposed below the first air outlet column 110 and the second air outlet column 120. The functional module 170 is disposed within the lower housing 160. The functional module 170 is configured to process the gas flowing through it or to add substances to the airflow. The functional module 170 cooperates with the second air outlet column 120 to form a non-heat exchange airflow at least within the second air outlet column 120. For example, the functional module 170 is a humidifier, an oxygenator, a fresh air system, a purification system, etc., so that the non-heat exchange airflow is a humidified airflow, an oxygenated airflow, a fresh airflow, or a purified airflow, etc.

[0054] In some embodiments of the present invention, the lower housing 160 is provided with an airflow inlet, which may be a fresh air inlet or an indoor air inlet. For example, the lower housing is provided with a fresh air inlet and an indoor unit air inlet, as well as a damper device for selectively opening the fresh air inlet and the indoor air inlet.

[0055] Functional module 170 includes a downdraft fan that directs airflow into the airflow inlet and then out through the outlet of functional module 170. The outlet of functional module 170 is connected to a second air outlet duct. For example, the outlet of functional module 170 may be connected to the upper or lower end of the second air outlet duct. When the functional module is a fresh air device, the outlet of functional module 170 may be the outlet of the downdraft fan, which may also be referred to as a fresh air fan.

[0056] In some embodiments of the present invention, the outlet of the functional module 170 is connected to the second outlet duct on the air inlet side of the non-heat exchange fan 123. The airflow flowing in from the second air inlet and the airflow flowing out from the outlet of the functional module 170 are mixed first and then enter the second outlet duct through the non-heat exchange fan, making the airflow mixing more uniform and the mixing effect better. In some embodiments, a damper may be provided at the second air inlet to close the second air inlet, at which time the second outlet duct only flows out of the airflow from the air inlet. When the fan is not working, the second outlet duct only flows out of the airflow from the second air inlet. Of course, a damper may also be provided at the outlet of the functional module 170 so that the second outlet duct only flows out of the airflow from the second air inlet.

[0057] 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. A vertical air conditioner indoor unit, characterized in that, include: The first air outlet column has a first air outlet duct for blowing out heat exchange airflow, and the first air outlet duct has a first air outlet surface and a second air outlet surface that are arranged opposite to each other. The second air column has a second air duct for blowing out non-heat exchange airflow, and the second air duct has a third air outlet surface and a fourth air outlet surface that are arranged opposite to each other. The first and second air outlet columns are arranged horizontally, and an air intake interval is formed between them; The first air outlet surface, the second air outlet surface, the air intake interval, the third air outlet surface, and the fourth air outlet surface are arranged sequentially in the horizontal direction; The front edge of the second air outlet surface is located obliquely behind the front edge of the first air outlet surface, and the front edge of the third air outlet surface is located obliquely behind the front edge of the fourth air outlet surface. The first air outlet surface includes a first converging air guide surface that arches backward from the front edge of the first air outlet surface and in a direction away from the second air outlet column, and the fourth air outlet surface includes a second converging air guide surface that arches backward from the front edge of the fourth air outlet surface and in a direction away from the first air outlet column. The first and second aggregated air guide surfaces are arranged opposite to each other to form a uniform air outlet duct, and at least a portion of the uniform air outlet duct starting from the front end gradually narrows from back to front. The uniform air outlet duct gradually expands from back to front and then gradually narrows.

2. The vertical air conditioner indoor unit according to claim 1, characterized in that, The angle between the tangent at the front edge of the first air outlet surface and the vertical plane extending in the lateral direction is greater than the angle between the tangent at the front edge of the fourth air outlet surface and the vertical plane extending in the lateral direction.

3. The vertical air conditioner indoor unit according to claim 1, characterized in that, The second air outlet surface is used to direct the airflow along it forward and diagonally forward of the second air outlet column; The third air outlet is used to direct the airflow along it forward and diagonally forward of the first air outlet column.

4. The vertical air conditioner indoor unit according to claim 1, characterized in that, The front edges of the first air outlet surface, the second air outlet surface, the third air outlet surface, and the fourth air outlet surface are respectively located in vertical planes extending in the front-back direction, namely the first vertical plane, the second vertical plane, the third vertical plane, and the fourth vertical plane. The distance between the first vertical plane and the second vertical plane is 3 to 8 times the distance between the third vertical plane and the fourth vertical plane; The front end of the air intake interval extends in the front-back direction, and the width of the front end of the air intake interval is 1.5 to 3.5 times the distance between the third vertical plane and the fourth vertical plane.

5. The vertical air conditioner indoor unit according to claim 1, characterized in that, It also includes a guide plate for lateral airflow, the guide plate being rotatably disposed within the uniform air outlet duct, and there are multiple guide plates arranged sequentially along the lateral direction.

6. The vertical air conditioner indoor unit according to claim 1, characterized in that, The front surface of the first air outlet column and the front surface of the second air outlet column are on the same vertical plane, and the rear surface of the first air outlet column is behind the rear surface of the second air outlet column; in the transverse direction, the length of the first air outlet column is greater than the length of the second air outlet column.

7. The vertical air conditioner indoor unit according to claim 1, characterized in that, The first air outlet column is provided with a first air inlet communicating with the first air outlet duct; a heat exchanger and a heat exchange fan are provided inside the first air outlet column, and the heat exchange fan causes airflow to enter the first air outlet column from the first air inlet, exchange heat with the heat exchanger to form the heat exchange airflow, and then flow out from the first air outlet duct; the heat exchange fan is a cross-flow fan; the first air outlet surface is connected to the volute of the heat exchange fan; The second air outlet column is provided with a second air inlet that communicates with the second air outlet duct. A non-heat exchange fan is installed inside the second air outlet column. The non-heat exchange fan causes airflow to enter the second air outlet column from the second air inlet and then flow out from the second air outlet duct. The non-heat exchange fan is a cross-flow fan. The fourth air outlet surface is connected to the volute of the non-heat exchange fan.

8. The vertical air conditioner indoor unit according to claim 7, characterized in that, Also includes: The lower shell is disposed below the first air outlet column and the second air outlet column; A functional module is disposed within the lower housing; the functional module is configured to process gas flowing through it or to add substances to the gas flow, and the functional module cooperates with the second air outlet column to form the non-heat exchange gas flow at least within the second air outlet column.

9. The vertical air conditioner indoor unit according to claim 8, characterized in that, An airflow inlet is provided on the lower shell; The functional module includes a downdraft fan, which causes airflow to enter the airflow inlet and then flow out from the outlet of the functional module; the outlet of the functional module is connected to the second air outlet duct. The outlet of the functional module is connected to the second air outlet duct on the air inlet side of the non-heat exchanger fan.

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