Vertical air conditioner indoor unit and control method

Abstract

The present invention provides a vertical air conditioner indoor unit and a control method. The vertical air conditioner indoor unit includes a uniform air outlet duct with an outlet facing forward, a partition member, and two air guiding columns. The rear end of the uniform air outlet duct is connected to a first air outlet duct, an air guiding duct, and a second air outlet duct, so that the air flows from the first air outlet duct, the air guiding duct, and the second air outlet duct are blown out through the uniform air outlet duct. The partition member extends along the length direction of the uniform air outlet duct, and is arranged in the uniform air outlet duct and in front of the air guiding duct, so that the air flowing out from the air guiding duct flows out from both sides of the partition member. Each air guiding column extends along the length direction of the uniform air outlet duct, and the outer contour of the cross section of each air guiding column perpendicular to the length direction of the uniform air outlet duct includes two curves. The two air guiding columns are arranged in the uniform air outlet duct. The vertical air conditioner indoor unit and the control method provided by the present invention are beneficial to the flow of air in the uniform air outlet duct, facilitate the mixing and blowing of air, and have a large air guiding volume.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and particularly to a vertical air conditioner indoor unit and a control method therefor. Background Art

[0002] With the popularization of air conditioners, users have higher and higher requirements for the comfort and health of air supply. For traditional air conditioner cabinet units, the air supply volume is fixed, and the cold air blows directly on people. If users use it for a long time, they are prone to air conditioner diseases.

[0003] For the air supply scheme of traditional vertical air conditioner indoor units, due to the contradiction between air volume and noise, the maximum air outlet volume is limited within a certain range. Moreover, the cold air blown out by the air conditioner has a relatively low temperature. When it blows directly on people, it will cause physical discomfort and affect the user experience. For traditional air guiding schemes, mainly the air flow at the air outlet drives the air to flow out of the air guiding outlet. Although the mixed effect of hot and cold air outlet can be achieved, the air guiding volume is small and the air evenness effect is not obvious. Summary of the Invention

[0004] In view of the above problems, the present invention is proposed to provide a vertical air conditioner indoor unit and a control method therefor that can overcome or at least partially solve the above problems, which is beneficial to the flow of air in the air evenness air outlet duct, facilitates the mixing and blowing of air, and has a large air guiding volume.

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

[0006] An air evenness air outlet duct with an outlet facing forward, and a first air outlet duct, an air guiding duct, and a second air outlet duct that are connected to the rear end of the air evenness air outlet duct and arranged in sequence in the transverse direction, so that the air flows from the first air outlet duct, the air guiding duct, and the second air outlet duct is blown out through the air evenness air outlet duct;

[0007] A partition member that extends along the length direction of the air evenness air outlet duct, the width of the front end of the partition member is greater than the width of its rear end, the partition member is arranged in the air evenness air outlet duct and is located in front of the air guiding duct, so that the air flowing out of the air guiding duct flows out from both sides of the partition member;

[0008] Two air guiding columns, each air guiding column extends along the length direction of the air evenness air outlet duct, the outer contour of the cross-section of each air guiding column perpendicular to the length direction of the air evenness air outlet duct includes two curves that are oppositely arranged and used to define the boundaries of the thickness direction of the air guiding column, and each curve arches away from the other curve; the two air guiding columns are arranged in the air evenness air outlet duct and are located on the transverse sides of the partition member.

[0009] Optionally, each air guiding column is rotatably arranged around an axis that extends along the length direction of the air evenness air outlet duct and passes through it.

[0010] Optionally, the two curves are symmetrically arranged so that the outer contour is at least an axisymmetric figure, and the rotation axis of each air guiding column is on the symmetry plane of the two curves and in the middle of the length direction of the air guiding column.

[0011] Optionally, the outer contour is oval; the ratio between the distance of the outer contour in the length direction and the distance of the outer contour in the thickness direction is 1.7 to 2.1.

[0012] Optionally, the front end of the partition member faces the middle of the outlet of the air distribution outlet duct;

[0013] The air guiding duct has at least a symmetric section extending in the front-rear direction and symmetric in the lateral direction. The front end of the symmetric section is the front end of the air guiding duct, or the air guiding duct further has a front section connected to the symmetric section and located on the front side of the symmetric section. The front end of the symmetric section is always within any cross section of the front section;

[0014] The rear end of the partition member faces the middle of the front end of the symmetric section, or the rear end of the partition member deflects towards the vertical plane extending in the front-rear direction where the middle of the front end of the symmetric section is located, so that the middle of the rear end of the partition member is in the lateral direction between the middle of the front end of the partition member and the middle of the front end of the symmetric section.

[0015] Optionally, the air distribution outlet duct first has an expanding shape from the rear to the front and then a contracting shape.

[0016] Optionally, the first air outlet duct has a first air outlet surface and a second air outlet surface arranged oppositely, and the second air outlet duct has a third air outlet surface and a fourth air outlet surface arranged oppositely;

[0017] The first air outlet surface, the second air outlet surface, the air guiding duct, the third air outlet surface and the fourth air outlet surface are arranged in sequence in the lateral direction;

[0018] The air distribution outlet duct has a first air distribution surface and a second air distribution surface. The first air distribution surface is connected to the first air outlet surface; the second air distribution surface is connected to the fourth air outlet surface.

[0019] Optionally, the vertical air conditioner indoor unit further includes:

[0020] A first air outlet column having the first air outlet duct and the first air distribution surface;

[0021] A second air outlet column having the second air outlet duct and the second air distribution surface; the first air outlet column and the second air outlet column are arranged side by side and spaced apart in the lateral direction to form the air guiding duct.

[0022] Optionally, the separator includes a first air guiding surface arched towards the second air outlet column and a second air guiding surface arched towards the first air outlet column;

[0023] The separator further has a front surface connecting the front ends of the first air guiding surface and the second air guiding surface and a rear surface connecting the rear ends of the first air guiding surface and the second air guiding surface; the front surface is a vertical plane, and the rear surface is an arc surface arched backward.

[0024] Optionally, the separator is gradually expanding from back to front; the front surface of the first air outlet column coincides with the vertical plane extending in the transverse direction where the foremost end of the second air outlet column is located; the front surface of the separator is behind the vertical plane.

[0025] Optionally, the angle between the tangent plane at the front edge of the first air distribution surface and the vertical plane extending in the transverse direction is greater than the angle between the tangent plane at the front edge of the second air distribution surface and the vertical plane extending in the transverse direction;

[0026] The first air outlet surface is used to make the air flow along it flow forward and obliquely forward towards the second air outlet column;

[0027] The second air outlet surface is used to make the air flow along it flow forward and obliquely forward towards the second air outlet column;

[0028] The third air outlet surface is used to make the air flow along it flow forward and obliquely forward towards the first air outlet column;

[0029] The fourth air outlet surface is used to make the air flow along it flow forward and obliquely forward towards the first air outlet column.

[0030] Optionally, the vertical planes extending in the front-rear direction where 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 located are the first vertical plane, the second vertical plane, the third vertical plane, and the fourth vertical plane respectively;

[0031] 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;

[0032] The front end of the air guiding duct extends in the front-rear direction, and the width of the air guiding duct is 1.5 to 3.5 times the distance between the third vertical plane and the fourth vertical plane.

[0033] Optionally, a first air inlet communicating with the first air outlet duct is provided on the first air outlet column; a heat exchanger and a heat exchange fan are arranged in the first air outlet column, and the heat exchange fan enables air flow to enter the first air outlet column from the first air inlet, form heat exchange air flow after heat exchange with the heat exchanger, and flow out from the first air outlet duct; the heat exchange fan is a cross-flow fan; one end of the first air outlet surface away from the first air distribution surface is connected to the volute tongue of the heat exchange fan;

[0034] A second air inlet communicating with the second air outlet duct is provided on the second air outlet column,

[0035] A non-heat exchange fan is arranged in the second air outlet column, and the non-heat exchange fan enables air flow 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; one end of the fourth air outlet surface away from the second air distribution surface is connected to the volute tongue of the non-heat exchange fan.

[0036] Optionally, the vertical air conditioner indoor unit further includes:

[0037] A lower case, which is arranged below the first air outlet column and the second air outlet column;

[0038] A functional module, which is arranged in the lower case; the functional module is configured to process the gas flowing through it or add substances to the air flow, and the functional module cooperates with the second air outlet column to form non-heat exchange air flow at least in the second air outlet column.

[0039] The present invention also provides a control method for a vertical air conditioner indoor unit, and the vertical air conditioner indoor unit is the vertical air conditioner indoor unit of any one of the above; the control method includes:

[0040] Obtain the indoor temperature and calculate the absolute value of the difference between the indoor temperature and the set temperature;

[0041] When the absolute value of the difference is less than a first preset value, each air guide column rotates to a position extending in the transverse direction; when the absolute value of the difference is greater than or equal to the first preset value and less than a second preset value, each air guide column rotates to a position extending in the front-rear direction; when the absolute value of the difference is greater than or equal to the second preset value, each air guide column rotates to a position in contact with the front end of the side surface of the partition member facing the air guide column

[0042] In the vertical air conditioner indoor unit according to the embodiment of the present invention, when the first air outlet duct and the second air outlet duct discharge air, the negative pressure effect is relied on to drive the indoor air flow to blow out from the air guiding duct. The air flow blown out from the air guiding duct flows out from both sides of the partition member. The air flows on both sides are respectively mixed with the air flow from the first air outlet duct and the air flow from the second air outlet duct, and are respectively blown out from the air distribution outlet duct under the air guiding action of the two air guiding columns. The air guiding columns and the partition member are beneficial to the air flow flowing in the air distribution outlet duct, facilitating the mixing and blowing out of the air flow. Moreover, the first air outlet duct and the second air outlet duct actively introduce air flow, and the air guiding duct passively introduces air flow, resulting in a large air guiding volume.

[0043] Further, each air guiding column is rotatably arranged. When the air guiding column rotates to extend in the front-rear direction, the effective air outlet surface of the air distribution outlet duct is larger, resulting in a larger air outlet volume, a longer air supply distance, and a faster room heat exchange speed, which is suitable for rapid heat exchange scenarios; when the air guiding column rotates to extend in the transverse direction, the effective air outlet surface of the air distribution outlet duct decreases, resulting in a smaller air outlet volume, but an increased air distribution volume and a higher air outlet temperature, and a better effect of the air flow being cool but not cold, which is suitable for constant temperature control scenarios; when the front end of the air guiding column rotates towards the partition member, there is basically no passive air distribution, the air outlet volume is large and the air outlet temperature is low, which is suitable for scenarios where the indoor temperature is high and rapid cooling is required.

[0044] Through the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more clear about the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Some specific embodiments of the present invention will be described in detail hereinafter with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0046] Figure 1 is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention;

[0047] Figure 2 is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention, wherein each air guiding column extends in the front-rear direction;

[0048] Figure 3 is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention, wherein each air guiding column extends in the transverse direction;

[0049] Figure 4 is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention, wherein the front end of each air guiding column faces the partition member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] The following will refer to Figures 1 to 4 to describe the vertical air conditioner indoor unit according to an embodiment of the present invention. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features, that is, include one or more of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0051] Unless otherwise clearly specified and defined, terms such as "arranged", "installed", "connected", "coupled", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal connection of two components or the interaction relationship between two components, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0052] In addition, in the description of this embodiment, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but in contact through other features therebetween. That is, in the description of this embodiment, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "beneath", or "under" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0053] In the description of this embodiment, the description referring to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0054] Figure 1is a schematic structural diagram of a vertical air conditioner indoor unit according to an embodiment of the present invention, as Figure 1 shown, and referring to Figures 2 to 4 , an embodiment of the present invention provides a vertical air conditioner indoor unit 100, which includes a uniform air outlet duct 140 with an outlet facing forward, a partition 190, and two air guiding columns 180. The rear end of the uniform air outlet duct 140 is connected to a first air outlet duct, an air guiding duct 130, and a second air outlet duct arranged in sequence in the transverse direction, so that the air flows from the first air outlet duct, the air guiding duct 130, and the second air outlet duct are blown out through the uniform air outlet duct 140. The partition 190 extends along the length direction of the uniform air outlet duct 140, the width of the front end of the partition 190 is greater than the width of its rear end, the partition 190 is arranged in the uniform air outlet duct 140 and is on the front side of the air guiding duct 130, so that the air flowing out from the air guiding duct 130 flows out from both sides of the partition 190. Each air guiding column 180 extends along the length direction of the uniform air outlet duct 140, and the outer contour of the cross-section of each air guiding column 180 perpendicular to the length direction of the uniform air outlet duct 140 includes two curves arranged oppositely for defining the boundaries in the thickness direction of the air guiding column 180, and each curve arches away from the other curve. The two air guiding columns 180 are arranged in the uniform air outlet duct 140 and are on the transverse sides of the partition 190.

[0055] In the vertical air conditioner indoor unit 100 according to the embodiment of the present invention, when the first air outlet duct and the second air outlet duct discharge air, the indoor air flow is driven to be blown out from the air guiding duct 130 by the negative pressure effect. The air flowing out from the air guiding duct 130 flows out from both sides of the partition 190. The air on both sides is respectively mixed with the air from the first air outlet duct and the air from the second air outlet duct, and is respectively blown out from the uniform air outlet duct 140 under the air guiding action of the two air guiding columns 180. The air guiding columns 180 and the partition 190 are beneficial to the air flow in the uniform air outlet duct 140, facilitating the mixing and blowing of the air flow. Moreover, the first air outlet duct and the second air outlet duct actively introduce air, and the air guiding duct 130 passively introduces air, so that the air intake volume is large.

[0056] In some embodiments of the present invention, each air guiding column 180 is rotatably arranged around an axis extending along the length direction of the uniform air outlet duct 140 passing through it. When the air guiding column 180 rotates to extend in the front-rear direction, the effective air outlet surface of the uniform air outlet duct 140 is large, so that the air outlet volume is large, the air supply distance is far, and the room heat exchange speed is fast, which is suitable for the rapid heat exchange scenario; when the air guiding column 180 rotates to extend in the transverse direction, the effective air outlet surface of the uniform air outlet duct 140 decreases, so that the air outlet volume decreases, but the uniform air volume increases, the air outlet temperature is higher, and the effect of the air flow being cool but not cold is better, which is suitable for the constant temperature control scenario; when the air guiding column 180 rotates to make its front end approach the partition 190, there is basically no passive air uniformity, the air outlet volume is large and the air outlet temperature is low, which is suitable for the scenario where the indoor temperature is high and rapid cooling is required.

[0057] In some embodiments of the present invention, two curves are symmetrically arranged so that the outer contour is at least an axisymmetric figure. The rotation axis of each air guiding column 180 is on the symmetry plane of the two curves and in the middle of the length direction of the air guiding column 180. Since the outer contour of the air guiding column 180 is surrounded by two symmetrically arranged curved surfaces, it has a guiding effect on the air flow, making the air flow smooth, and the air guiding column 180 is convenient for production and manufacturing.

[0058] In some embodiments of the present invention, the outer contour is oval. The ratio of the distance along the length direction of the outer contour to the distance along the thickness direction of the outer contour is 1.7 to 2.1, preferably 1.9.

[0059] In some embodiments of the present invention, as Figures 2 to 4 shown, the front end of the partition member 190 is directly opposite to the middle of the outlet of the air distribution outlet duct 140. The air guiding duct 130 has at least a symmetric section extending in the front-rear direction and symmetric in the lateral direction, and the front end of the symmetric section is the front end of the air guiding duct 130. In some alternative embodiments, the air guiding duct 130 further has a front section connected to the symmetric section and located in front of the symmetric section, and the front end of the symmetric section is always within any cross section of the front section, so as not to affect the air flow of the symmetric section. For example, the symmetric section can be a straight section.

[0060] The rear end of the partition member 190 is directly opposite to the middle of the front end of the symmetric section, or in some alternative embodiments, the rear end of the partition member 190 deflects towards the vertical plane extending in the front-rear direction where the middle of the front end of the symmetric section is located, so that the middle of the rear end of the partition member 190 is in the lateral direction between the middle of the front end of the partition member 190 and the middle of the front end of the symmetric section.

[0061] In some embodiments of the present invention, as Figures 2 to 4 shown, the air distribution outlet duct 140 first expands gradually from the rear to the front and then contracts gradually. The air distribution outlet duct 140 may include a gradually expanding section and a gradually contracting section that are connected in sequence from the rear to the front. The connection between the gradually expanding section and the gradually contracting section has a smooth transition, which is beneficial to the air flow. The gradually expanding section is beneficial for the air flow in the first air outlet duct, the second air outlet duct, and the air guiding duct 130 to enter the air distribution outlet duct 140, and the gradually contracting section makes the air flow have a pressurizing effect and accelerates the air flow. The gradually expanding section and the gradually contracting section are used in combination, so that the air flow can be fully mixed in the air distribution outlet duct 140 and blown out at an accelerated speed.

[0062] In some embodiments of the present invention, as Figures 2 to 4As shown, the first air outlet duct has a first air outlet surface and a second air outlet surface 112 which are oppositely arranged, and the second air outlet duct has a third air outlet surface 121 and a fourth air outlet surface which are oppositely arranged. The first air outlet surface, the second air outlet surface 112, the air guiding duct 130, the third air outlet surface 121 and the fourth air outlet surface are arranged in sequence along the transverse direction. The air distribution outlet duct 140 has a first air distribution surface 141 and a second air distribution surface 142. The first air distribution surface 141 is connected to the first air outlet surface. The second air distribution surface 142 is connected to the fourth air outlet surface, making the air outlet of the first air outlet duct and the second air outlet duct smoother and with lower noise.

[0063] In some embodiments of the present invention, as Figures 1 to 4 shown, the vertical air conditioner indoor unit 100 further includes 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 and a first air distribution surface 141. The second air outlet column 120 has a second air outlet duct and a second air distribution surface 142. The first air outlet column 110 and the second air outlet column 120 are arranged in a transverse row and spaced apart to form an air guiding duct 130.

[0064] In some embodiments of the present utility model, as Figures 2 to 4 shown, the front surface of the first air outlet column 110 and the foremost part of the second air outlet column 120 are in the same vertical plane, and the rear surface of the first air outlet column 110 is behind the rear surface of the second air outlet column 120. Along the transverse direction, the length of the first air outlet column 110 is greater than the length of the second air outlet column 120. That is to say, along the front-rear direction and the transverse direction, the size of the first air outlet column 110 is greater than the size of the second air outlet column 120, making the vertical air conditioner indoor unit 100 an asymmetric design, with a more novel and unique appearance, and enhancing the competitiveness of the product.

[0065] In some embodiments of the present invention, as Figures 2 to 4 shown, the partition member 190 includes a first air guiding curved surface arched towards the direction of the second air outlet column 120 and a second air guiding curved surface arched towards the direction of the first air outlet column 110. The first air guiding curved surface and the second air guiding curved surface are beneficial to the flow of air. The partition member 190 further has a front surface connecting the front ends of the first air guiding curved surface and the second air guiding curved surface and a rear surface connecting the rear ends of the first air guiding curved surface and the second air guiding curved surface. The front surface is a vertical plane, and the rear surface is an arc surface arched backward.

[0066] In some embodiments of the present invention, as Figures 2 to 4 shown, the partition member 190 is in a gradually expanding shape from the rear to the front. The front surface of the first air outlet column 180 coincides with the vertical plane extending along the transverse direction where the foremost end of the second air outlet column 180 is located. The front surface of the partition member 190 is behind this vertical plane, making the partition member 190 not easily damaged.

[0067] In some embodiments of the present invention, the angle between the tangent plane at the front edge of the first air distribution surface 141 and the vertical plane extending in the transverse direction is greater than the angle between the tangent plane at the front edge of the second air distribution surface 142 and the vertical plane extending in the transverse direction. The first air outlet surface is used to make the air flow along it flow forward and obliquely forward towards the second air outlet column 120. The second air outlet surface 112 is used to make the air flow along it flow forward and obliquely forward towards the second air outlet column 120. The third air outlet surface 121 is used to make the air flow along it flow forward and obliquely forward towards the first air outlet column 110. The fourth air outlet surface is used to make the air flow along it flow forward and obliquely forward towards the first air outlet column 110.

[0068] In some embodiments of the present invention, the vertical planes extending in the front-rear direction where the front edges of the first air outlet surface, the front edge of the second air outlet surface 112, the front edge of the third air outlet surface 121, and the front edge of the fourth air outlet surface are located are the first vertical plane, the second vertical plane, the third vertical plane, and the fourth vertical plane respectively. 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, it is 5.5 times. The front end of the air guiding duct 130 extends in the front-rear direction, and the width of the air guiding duct 130 is 1.5 to 3.5 times the distance between the third vertical plane and the fourth vertical plane. Preferably, it is 2.5 times.

[0069] In some embodiments of the present invention, as Figures 2 to 4 shown, the first air outlet column 110 is provided with a first air inlet communicating with the first air outlet duct. A heat exchanger 113 and a heat exchange fan 114 are arranged in the first air outlet column 110. The heat exchange fan 114 makes the air flow into the first air outlet column 110 from the first air inlet, forms a heat exchange air flow after heat exchange with the heat exchanger 113, and flows out from the first air outlet duct. The heat exchange fan 114 is a cross-flow fan. One end of the first air outlet surface far from the first air distribution surface 141 is connected to the volute tongue of the heat exchange fan 114, and the connection is smoothly transitioned, so that the air supply is smoother and the noise is lower.

[0070] 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 arranged in the second air outlet column 120. The non-heat exchange fan 123 makes the air flow into the second air outlet column 120 from the second air inlet and then flows out from the second air outlet duct. The non-heat exchange fan 123 is a cross-flow fan. One end of the fourth air outlet surface far from the second air distribution surface is connected to the volute tongue of the non-heat exchange fan 123, and the connection is smoothly transitioned, so that the air supply is smoother and the noise is lower.

[0071] When the vertical air conditioner indoor unit 100 is operating, when air blows out from the first air outlet duct and the second air outlet duct, relying on the negative pressure effect to drive the indoor air flow to blow out from the air guiding duct 130, the heat exchange air flow, the non-heat exchange air flow and the indoor air flow are mixed in the air distribution outlet duct 140 to form a cool but not cold mixed air and then blown out, avoiding direct blowing of cold air on people and making users more comfortable.

[0072] In some embodiments of the present invention, as Figure 1 shown, the vertical air conditioner indoor unit 100 further 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 convey gas, process the gas flowing through it, or add substances to the air flow. The functional module 170 cooperates with the second air outlet column 120 to form an air flow at least within the second air outlet duct. For example, the functional module 170 is a humidifying device, an oxygen adding device, a fresh air device, a purification device, etc., so that the air flow is a humidified air flow, an oxygen-added air flow, or a fresh air flow or a purified treated air flow, etc.

[0073] In some embodiments of the present invention, an air flow inlet is provided on the lower housing 160, and the air flow inlet can be a fresh air inlet or an indoor air inlet. For example, a fresh air inlet and an indoor unit air inlet are provided on the lower housing 160, as well as a damper device for selectively opening the fresh air inlet and the indoor air inlet.

[0074] The functional module 170 includes a lower blower, which causes the air flow to enter the air flow inlet and then flow out from the outlet of the functional module 170. The outlet of the functional module 170 is in communication with the second air outlet duct. For example, the outlet of the functional module 170 can be in communication with the upper end or the lower end of the second air outlet duct. When the functional module 170 is a fresh air device, the outlet of the functional module 170 can be the outlet of the lower blower, and the lower blower can also be referred to as a fresh air blower.

[0075] In some embodiments of the present invention, the outlet of the functional module 170 is in communication with the second air outlet duct on the air inlet side of the non-heat exchange blower 123. The air flow flowing in from the second air inlet and the air flow flowing out from the outlet of the functional module 170 are first mixed and then enter the second air outlet duct through the non-heat exchange blower 123, making the mixing of the air flow more uniform and the mixing effect better. In some embodiments, a damper can be provided at the second air inlet to close the second air inlet. At this time, only the air flow from the air flow inlet flows out of the second air outlet duct. When the lower blower does not work, only the air flow from the second air inlet flows out of the second air outlet duct at this time. Of course, a damper can also be provided at the outlet of the functional module 170 to make only the air flow from the second air inlet flow out of the second air outlet duct.

[0076] An embodiment of the present invention also provides a control method for an indoor unit of a floor-standing air conditioner, where the indoor unit of the floor-standing air conditioner is the floor-standing air conditioner 100 in any of the above embodiments; the control method includes:

[0077] Obtain the indoor temperature and calculate the absolute value of the difference between the indoor temperature and the set temperature;

[0078] When the absolute value of the difference is less than the first preset value, each air guide column 180 rotates to a position extending in the transverse direction; at this time, the floor-standing air conditioner indoor unit 100 is in the small air volume aggregation and uniform air distribution mode, the effective air outlet area of the outlet of the uniform air duct 140 decreases, the air volume decreases, the proportion of the uniform air volume increases, the air outlet temperature is higher, and the effect of being cool but not cold is better, which is suitable for the constant temperature control scenario;

[0079] When the absolute value of the difference is greater than or equal to the first preset value and less than the second preset value, each air guide column 180 rotates to a position extending in the front-rear direction; at this time, the floor-standing air conditioner indoor unit 100 is in the large air volume aggregation and uniform air distribution mode, the effective air outlet area of the outlet of the uniform air duct 140 increases, the air volume increases, the air supply distance is far, and the room heat exchange speed is fast, which is suitable for the rapid heat exchange scenario;

[0080] When the absolute value of the difference is greater than or equal to the second preset value, the front end of each air guide column 180 rotates to a position close to the partition member 190. Preferably, each of the air guide columns rotates to a position in contact with the front end of the side surface of the partition member facing the air guide column. At this time, the floor-standing air conditioner indoor unit 100 is in the large air volume cluster air supply mode, there is basically no passive air distribution, the air volume is large and the air outlet temperature is low, which is suitable for the scenario where the indoor temperature is high and rapid cooling is required. For example, the first preset value is 1°C and the second preset value is 3°C.

[0081] At this point, those skilled in the art should recognize that although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. A vertical air conditioner indoor unit, characterized in that, Comprising: A uniform air outlet duct with the outlet facing forward, and a first air outlet duct, an air guiding duct, and a second air outlet duct that are connected to the rear end of the uniform air outlet duct and arranged in sequence in the transverse direction, so that the air flows from the first air outlet duct, the air guiding duct, and the second air outlet duct are blown out through the uniform air outlet duct; A partition member that extends along the length direction of the uniform air outlet duct, the width of the front end of the partition member is greater than the width of its rear end, the partition member is arranged in the uniform air outlet duct and is on the front side of the air guiding duct, so that the air flowing out from the air guiding duct flows out from both sides of the partition member; Two air guiding columns, each air guiding column extends along the length direction of the uniform air outlet duct, the outer contour of the cross section of each air guiding column perpendicular to the length direction of the uniform air outlet duct includes two curves that are oppositely arranged and used to define the boundaries in the thickness direction of the air guiding column, and each curve arches away from the other curve; the two air guiding columns are arranged in the uniform air outlet duct and are on the transverse two sides of the partition member; Each air guiding column is rotatably arranged around an axis that extends along the length direction of the uniform air outlet duct passing through it; each air guiding column can be rotated to a position where it contacts the front end of the side of the partition member facing the air guiding column.

2. The vertical air conditioner indoor unit according to claim 1, characterized in that, The two curves are symmetrically arranged so that the outer contour is at least an axisymmetric figure, and the rotation axis of each air guiding column is on the symmetry plane of the two curves and is in the middle of the length direction of the air guiding column.

3. The vertical air conditioner indoor unit according to claim 2, characterized in that, The outer contour is an ellipse; the ratio between the distance of the outer contour along the length direction and the distance of the outer contour along the thickness direction is 1.7 to 2.

1.

4. The vertical air conditioner indoor unit according to claim 1, characterized in that The front end of the partition member is directly opposite to the middle of the outlet of the uniform air outlet duct; The air guiding duct at least has a symmetric section that extends in the front-rear direction and is symmetric in the transverse direction, the front end of the symmetric section is the front end of the air guiding duct, or the air guiding duct further has a front section connected to the symmetric section and on the front side of the symmetric section, and the front end of the symmetric section is always within any cross section of the front section; The rear end of the partition member is directly opposite to the middle of the front end of the symmetric section, or the rear end of the partition member deflects towards the vertical plane extending in the front-rear direction where the middle of the front end of the symmetric section is located, so that the middle of the rear end of the partition member is in the middle of the front end of the partition member and the middle of the front end of the symmetric section in the transverse direction.

5. The vertical air conditioner indoor unit according to claim 1, characterized in that The uniform air outlet duct first has a gradually expanding shape from the rear to the front and then has a gradually shrinking shape.

6. The vertical air conditioner indoor unit according to claim 1, characterized in that The first air outlet duct has a first air outlet surface and a second air outlet surface that are oppositely arranged, and the second air outlet duct has a third air outlet surface and a fourth air outlet surface that are oppositely arranged; The first air outlet surface, the second air outlet surface, the air guiding duct, the third air outlet surface, and the fourth air outlet surface are arranged in sequence in the transverse direction; The uniform air outlet duct has a first uniform air surface and a second uniform air surface, and the first uniform air surface is connected to the first air outlet surface; The second uniform air surface is connected to the fourth air outlet surface; The vertical air conditioner indoor unit further includes: A first air outlet column having the first air outlet duct and the first uniform air surface; A second air outlet column having the second air outlet duct and the second uniform air surface; the first air outlet column and the second air outlet column are arranged side by side in the transverse direction with a gap therebetween to form the air guiding duct.

7. The vertical air conditioner indoor unit according to claim 6, wherein The partition member includes a first air guiding curved surface arched toward the second air outlet column and a second air guiding curved surface arched toward the first air outlet column; The partition member further has a front surface connecting the front ends of the first air guiding curved surface and the second air guiding curved surface and a rear surface connecting the rear ends of the first air guiding curved surface and the second air guiding curved surface; the front surface is a vertical plane, and the rear surface is an arc surface arched backward; The partition member is gradually expanding from back to front; the front surface of the first air outlet column coincides with the vertical plane extending in the transverse direction where the foremost end of the second air outlet column is located; the front surface of the partition member is located at the rear side of the vertical plane.

8. The vertical air conditioner indoor unit according to claim 6, wherein A first air inlet communicating with the first air outlet duct is provided on the first air outlet column; a heat exchanger and a heat exchange fan are provided in the first air outlet column, and the heat exchange fan makes the air flow enter the first air outlet column from the first air inlet, form a heat exchange air flow after heat exchange with the heat exchanger, and flow out from the first air outlet duct; the heat exchange fan is a cross-flow fan; A second air inlet communicating with the second air outlet duct is provided on the second air outlet column, A non-heat exchange fan is provided in the second air outlet column, and the non-heat exchange fan makes the air flow 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.

9. A control method for a vertical air conditioner indoor unit according to any one of claims 1 to 8, characterized in that, Including: Obtain the indoor temperature and calculate the absolute value of the difference between the indoor temperature and the set temperature; When the absolute value of the difference is less than the first preset value, each of the air guiding columns rotates to a position extending in the transverse direction; when the absolute value of the difference is greater than or equal to the first preset value and less than the second preset value, each of the air guiding columns rotates to a position extending in the front-rear direction; when the absolute value of the difference is greater than or equal to the second preset value, each of the air guiding columns rotates to a position in contact with the front end of the side surface of the partition member facing the air guiding column.

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