CN115711427A

CN115711427A - Vertical air conditioner indoor unit and control method

Info

Publication number: CN115711427A
Application number: CN202211467974.1A
Authority: CN
Inventors: 李英舒; 黄楠燕; 刘宏宝; 张蕾; 王永涛
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-02-24

Abstract

The invention provides a vertical air conditioner indoor unit and a control method thereof, wherein the vertical air conditioner indoor unit comprises a uniform air outlet channel with a forward outlet, a separator and two air guide columns. The rear end of the uniform air outlet channel is connected with a first air outlet channel, an induced air channel and a second air outlet channel, so that air flows from the first air outlet channel, the induced air channel and the second air outlet channel are blown out through the uniform air outlet channel. The separator extends along the length direction of the uniform air outlet channel, is arranged in the uniform air outlet channel and is positioned at the front side of the induced air channel, so that the air flow flowing out of the induced air channel flows out of the two sides of the separator. Each air guide column extends along the length direction of the uniform air outlet channel, and the outer contour of the section, perpendicular to the length direction of the uniform air outlet channel, of each air guide column comprises two curves. The two air guide columns are arranged in the air-uniformizing air outlet channel. The vertical air conditioner indoor unit and the control method provided by the invention are beneficial to the air flow flowing in the air-homogenizing air outlet channel, are convenient for mixing and blowing out the air flow, and have large air induction quantity.

Description

Vertical air conditioner indoor unit and control method

Technical Field

The invention relates to the technical field of air conditioning, in particular to a vertical air conditioner indoor unit and a control method.

Background

With the popularization of air conditioners, users have higher and higher requirements on the comfort and the health of air supply. The traditional cabinet air conditioner has a certain air supply amount, cold air is directly blown to people, and users are easy to suffer from air conditioning diseases after long-term use.

According to the traditional air supply scheme of the vertical air conditioner indoor unit, due to the fact that air volume and noise are contradictory, the maximum air volume is limited within a certain range, and cold air blown out of the air conditioner is low in temperature and can cause discomfort after being blown to people and influence user experience. In the traditional drainage scheme, air flow at the air outlet drives the drainage air port to exhaust air, and although the cold air and the hot air can be mixed, the air induction amount is small, and the air homogenizing effect is not obvious.

Disclosure of Invention

In view of the above problems, the present invention has been made to provide a floor type air conditioner indoor unit and a control method thereof, which overcome or at least partially solve the above problems, facilitate airflow flowing in a uniform air outlet duct, facilitate mixing and blowing of the airflow, and provide a large amount of induced air.

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

the air conditioner comprises a uniform air outlet channel with a forward outlet, and a first air outlet channel, an induced air channel and a second air outlet channel which are connected to the rear end of the uniform air outlet channel and arranged in sequence along the transverse direction, so that air flows from the first air outlet channel, the induced air channel and the second air outlet channel are blown out through the uniform air outlet channel;

the partition extends along the length direction of the air-homogenizing air outlet channel, the width of the front end of the partition is larger than that of the rear end of the partition, and the partition is arranged in the air-homogenizing air outlet channel and positioned on the front side of the induced air channel so that airflow flowing out of the induced air channel flows out of two sides of the partition;

the outer contour of a section of each air guide column, which is perpendicular to the length direction of the uniform air outlet channel, comprises two oppositely arranged curves used for limiting the boundary of the air guide columns in the thickness direction, and each curve is arched in the direction away from the other curve; two the wind-guiding post set up in the even wind exhaust passage, and be in the horizontal both sides of separator.

Optionally, each wind guiding column is rotatably disposed around an axis passing through the wind guiding column and extending along the length direction of the even wind outlet channel.

Optionally, the two curves are symmetrically arranged, so that the outer contour is at least in an axisymmetric pattern, and the rotation axis of each wind deflector is located on the symmetry plane of the two curves and in the middle of the wind deflector in the length direction.

Optionally, the outer contour is elliptical; the ratio of the distance of the outer contour in the length direction to the distance of the outer contour in the thickness direction is 1.7 to 2.1.

Optionally, the front end of the partition is right opposite to the middle of the outlet of the uniform air outlet channel;

the air inducing duct at least has symmetrical sections which extend along the front-back direction and are symmetrical in the transverse direction, the front end of the symmetrical section is the front end of the air inducing duct, or the air inducing duct also has a front section which is connected with the symmetrical section and is positioned at the front side of the symmetrical section, and the front end of the symmetrical section is always positioned in any section of the front section;

the rear end of the partition is just opposite to the middle of the front end of the symmetrical section, or the rear end of the partition deflects towards a vertical plane extending in the front-rear direction where the middle of the front end of the symmetrical section is located, so that the middle of the rear end of the partition is located between the middle of the front end of the partition and the middle of the front end of the symmetrical section in the transverse direction.

Optionally, the air-homogenizing air outlet channel is gradually enlarged from back to front and then gradually reduced.

Optionally, the first air outlet duct has a first air outlet surface and a second air outlet surface which are arranged oppositely, and the second air outlet duct has a third air outlet surface and a fourth air outlet surface which are arranged oppositely;

the first air outlet surface, the second air outlet surface, the induced air duct, the third air outlet surface and the fourth air outlet surface are arranged in sequence along the transverse direction;

the air-homogenizing air outlet channel is provided with a first air-homogenizing surface and a second air-homogenizing surface, and the first air-homogenizing surface is connected with the first air outlet surface; and the second air-homogenizing surface is connected with the fourth air-outlet surface.

Optionally, the indoor unit of a floor air conditioner further includes:

the first air outlet column is provided with the first air outlet duct and the first air-uniform surface;

the second air outlet column is provided with a second air outlet duct and a second uniform air surface; the first air outlet column and the second air outlet column are transversely arranged and arranged at intervals to form the induced air duct.

Optionally, the partition includes a first wind guiding curved surface arched towards the second wind outlet column and a second wind guiding curved surface arched towards the first wind outlet column;

the separator is also provided with a front surface for connecting the front end of the first air guide curved surface and the front end of the second air guide curved surface and a rear surface for connecting the rear end of the first air guide curved surface and the rear end of the second air guide curved surface; the front surface is a vertical plane, and the rear surface is a circular arc surface which is arched backwards.

Optionally, the divider is divergent from back to front; the front surface of the first air outlet column is superposed with a vertical plane extending along the transverse direction and where the foremost end of the second air outlet column is located; the front surface of the divider is on the rear side of the vertical plane.

Optionally, an included angle between a tangent plane at the front edge of the first wind uniforming surface and a vertical plane extending in the transverse direction is larger than an included angle between a tangent plane at the front edge of the second wind uniforming surface and a vertical plane extending in the transverse direction;

the first air outlet surface is used for enabling the airflow flowing along the first air outlet surface to flow forwards and to the oblique front close to the second air outlet column;

the second air outlet surface is used for enabling the air flow flowing along the second air outlet surface to flow forwards and to the oblique front close to the second air outlet column;

the third air outlet surface is used for enabling the airflow flowing along the third air outlet surface to flow forwards and to the oblique front close to the first air outlet column;

the fourth air outlet surface is used for enabling the air flow flowing along the fourth air outlet surface to flow forwards and towards the oblique front close to the first air outlet column.

Optionally, vertical planes extending in the front-rear direction, where the front edge of the first air outlet face, the front edge of the second air outlet face, the front edge of the third air outlet face, and the front edge of the fourth air outlet face are respectively located, are a first vertical plane, a second vertical plane, a third vertical plane, and a 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;

the front end of the induced air duct extends along the front-back direction, and the width of the induced air duct is 1.5-3.5 times of the distance between the third vertical plane and the fourth vertical plane.

Optionally, a first air inlet communicated with the first air outlet duct is arranged 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 airflow to enter the first air outlet column from the first air inlet, and forms heat exchange airflow after the airflow exchanges heat with the heat exchanger, and the heat exchange airflow flows out of the first air outlet duct; the heat exchange fan is a cross-flow fan; one end of the first air outlet surface, which is far away from the first uniform air surface, is connected with a volute tongue of the heat exchange fan;

a second air inlet communicated with the second air outlet duct is arranged on the second air outlet column,

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 of the second air outlet duct; the non-heat exchange fan is a cross-flow fan; and one end of the fourth air outlet surface, which is far away from the second uniform air surface, is connected with a volute tongue of the non-heat exchange fan.

Optionally, the vertical air conditioner indoor unit further includes:

the lower shell is arranged below the first air outlet column and the second air outlet column;

a functional module disposed within the lower shell; the functional module is configured to be used for treating gas flowing through the functional module or adding substances into the gas flow, and the functional module is matched with the second air outlet column to at least form non-heat exchange gas flow in the second air outlet column.

The invention also provides a control method of the vertical air-conditioning indoor unit, wherein the vertical air-conditioning indoor unit is any one of the vertical air-conditioning indoor units; the control method comprises the following steps:

acquiring indoor temperature, and calculating the absolute value of the difference between the indoor temperature and the set temperature;

when the absolute value of the difference is smaller than a first preset value, each wind guide post rotates to a position extending along the transverse direction; when the absolute value of the difference is greater than or equal to a first preset value and less than a second preset value, each wind guide post rotates to a position extending along the front-back direction; when the absolute value of the difference is greater than or equal to a second preset value, each of the columns rotates to a position in contact with the front end of the side of the partition facing the column

In the vertical air conditioner indoor unit provided by the embodiment of the invention, when the first air outlet duct and the second air outlet duct are used for air outlet, the indoor air flow is driven to be blown out from the air guide duct by virtue of the negative pressure effect, the air flow blown out from the air guide duct flows out from two sides of the partition, the air flows at two 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 homogenizing air outlet duct under the wind guide effect of the two wind guide columns, and the wind guide columns and the partition are favorable for the air flow to flow in the air homogenizing air outlet duct, so that the air flows are mixed and blown out. Moreover, the first air outlet duct and the second air outlet duct actively introduce air flow, and the induced air duct passively introduces air flow, so that the induced air volume is large.

Further, each wind guiding column is rotatably arranged. When the wind guide column rotates to extend along the front-back direction, the effective air outlet surface of the uniform air outlet channel is larger, so that the air outlet volume is larger, the air supply distance is far, the room heat exchange speed is high, and the wind guide column is suitable for a rapid heat exchange scene; when the wind guide column rotates to extend along the transverse direction, the effective wind outlet surface of the uniform wind outlet channel is reduced, so that the wind outlet amount is reduced, but the uniform wind amount is increased, the wind outlet temperature is higher, the cooling effect but not the cooling effect of the airflow is better, and the wind guide column is suitable for a constant temperature control scene; when the wind guide column rotates to the front end and the wind guide column is close to the separating piece, passive wind is basically not generated, the air output is large, the air outlet temperature is low, and the wind guide column is suitable for indoor high-temperature scenes needing rapid cooling.

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 thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of an indoor unit of a floor type air conditioner according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a vertical air conditioning indoor unit according to an embodiment of the present invention, in which each of air guide columns extends in a front-rear direction;

fig. 3 is a schematic structural view of a vertical air conditioning indoor unit according to an embodiment of the present invention, in which each of the air guide columns extends in a lateral direction;

fig. 4 is a schematic structural view of a vertical air conditioning indoor unit according to one embodiment of the present invention, in which the front end of each of the air guide columns faces the partition.

Detailed Description

An indoor unit of a floor type air conditioner according to an embodiment of the present invention will be described with reference to fig. 1 to 4. In the description of the present embodiments, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature, i.e., one or more such features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. When a feature "comprises or comprises" a or some of its intended features, this indicates that other features are not excluded and that other features may be further included, unless expressly stated otherwise.

Unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," and "coupled" and the like are intended to be inclusive and mean, for example, that is, permanently connected, removably connected, or integral to; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. Those skilled in the art should understand the specific meaning of the above terms in the present invention according to specific situations.

Further, in the description of the present embodiment, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature therebetween. That is, in the description of the present embodiment, the first feature being "on", "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is higher in level than the second feature. A first feature "under," "beneath," or "beneath" a second feature may be directly under or obliquely under the second feature or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiments, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Fig. 1 is a schematic structural view of an indoor unit of a floor type air conditioner according to an embodiment of the present invention, and as shown in fig. 1 and referring to fig. 2 to 4, an embodiment of the present invention provides an indoor unit 100 of a floor type air conditioner including a uniform air outlet duct 140 having a forward outlet, a partition 190, and two air guide columns 180. The rear end of the uniform air outlet duct 140 is connected with a first air outlet duct, an induced air duct 130 and a second air outlet duct which are sequentially arranged along the transverse direction, so that the air flow from the first air outlet duct, the induced air duct 130 and the second air outlet duct is blown out through the uniform air outlet duct 140. The partition 190 extends along the length direction of the air-uniformizing air outlet duct 140, the width of the front end of the partition 190 is greater than that of the rear end thereof, and the partition 190 is disposed in the air-uniformizing air outlet duct 140 and is located at the front side of the induced air duct 130, so that the air flow flowing out of the induced air duct 130 flows out from the two sides of the partition 190. Each of the wind guide posts 180 extends in the length direction of the uniform wind outlet channel 140, and the outer contour of a cross section of each of the wind guide posts 180 perpendicular to the length direction of the uniform wind outlet channel 140 includes two oppositely disposed curves for defining a boundary in the thickness direction of the wind guide post 180, and each curve is arched in a direction away from the other curve. The two air guide columns 180 are disposed in the air uniformizing outlet duct 140 and at both lateral sides of the partition 190.

In the indoor unit 100 of the vertical air conditioner according to the embodiment of the invention, when the first air outlet duct and the second air outlet duct are used for air outlet, the indoor airflow is driven to be blown out from the induced air duct 130 by virtue of the negative pressure, the airflow blown out from the induced air duct 130 flows out from two sides of the partition 190, the airflows at two sides are respectively mixed with the airflow from the first air outlet duct and the airflow from the second air outlet duct, and are respectively blown out from the air-homogenizing outlet duct 140 under the wind guiding action of the two wind guiding columns 180, and the wind guiding columns 180 and the partition 190 are beneficial to the airflow flowing in the air-homogenizing outlet duct 140, so that the airflows are mixed and blown out. Moreover, the first air outlet duct and the second air outlet duct actively introduce air flow, and the induced air duct 130 passively introduces air flow, so that the induced air volume is large.

In some embodiments of the present invention, each of the wind guiding columns 180 is rotatably disposed about an axis passing therethrough extending in a length direction of the uniform wind discharging duct 140. When the air guide column 180 rotates to extend along the front-rear direction, the effective air outlet surface of the uniform air outlet duct 140 is larger, so that the air outlet quantity is larger, the air supply distance is far, the room heat exchange speed is high, and the air guide column is suitable for a rapid heat exchange scene; when the air guide column 180 rotates to extend along the transverse direction, the effective air outlet surface of the air uniformizing air outlet channel 140 is reduced, so that the air outlet quantity is reduced, but the air uniformizing quantity is increased, the air outlet temperature is higher, the cooling effect of air flow is better, and the air uniformizing air outlet channel is suitable for a constant temperature control scene; when the air guide column 180 rotates to the front end and the front end is close to the partition 190, passive air homogenization is basically not available, the air output is large, the air outlet temperature is low, and the air guide column is suitable for indoor high-temperature scenes needing rapid cooling.

In some embodiments of the present invention, the two curves are symmetrically arranged such that the outer profile is at least an axisymmetric figure, and the rotation axis of each of the columns 180 is located on the symmetry plane of the two curves and in the middle of the length direction of the columns 180. The outer contour of the air guide column 180 is defined by two symmetrically arranged curved surfaces, so that the air guide column has a guiding function on air flow, the air flow is smooth, and the air guide column 180 is convenient to produce and manufacture.

In some embodiments of the invention, the outer contour is elliptical. 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, preferably 1.9.

In some embodiments of the present invention, as shown in fig. 2 to 4, the front end of the partition 190 is aligned with the middle of the outlet of the uniform air outlet duct 140. The air guide duct 130 has at least symmetrical sections extending in the front-rear direction and symmetrical in the lateral direction, and the front end of the symmetrical sections is the front end of the air guide duct 130. In some alternative embodiments, the induced air duct 130 also has a front section connected to and in front of the symmetric section, the front end of the symmetric section always being in any cross section of the front section so as not to affect the flow of the airflow of the symmetric section, e.g. the symmetric section may be a straight section.

The rear end of the partition 190 is exactly opposite to the middle of the front end of the symmetric section, or in some alternative embodiments, the rear end of the partition 190 is deflected toward a vertical plane extending in the front-to-rear direction in which the middle of the front end of the symmetric section is located, such that the middle of the rear end of the partition 190 is between the middle of the front end of the partition 190 and the middle of the front end of the symmetric section in the lateral direction.

In some embodiments of the present invention, as shown in fig. 2 to 4, the air-distributing duct 140 is gradually enlarged from back to front and then gradually reduced. The uniform air outlet duct 140 may include a gradually expanding section and a gradually contracting section which are sequentially communicated from back to front. The junction of the divergent section and the convergent section is in smooth transition, which is beneficial to the flow of the airflow. The gradually expanding section is beneficial for the air flow in the first air outlet duct, the second air outlet duct and the induced air duct 130 to enter the uniform air outlet duct 140, and the gradually reducing section enables the air flow to have a pressurizing effect and accelerates the flow of the air flow. The gradual expansion section and the gradual reduction section are matched for use, so that the air flow can be fully mixed in the uniform air outlet channel 140 and blown out at high speed.

In some embodiments of the present invention, as shown in fig. 2 to 4, the first air outlet duct has a first air outlet surface and a second air outlet surface 112 that are oppositely disposed, and the second air outlet duct has a third air outlet surface 121 and a fourth air outlet surface that are oppositely disposed. The first air outlet surface, the second air outlet surface 112, the induced air duct 130, the third air outlet surface 121 and the fourth air outlet surface are sequentially arranged along the transverse direction. The air-uniformizing air outlet channel 140 has a first air-uniformizing surface 141 and a second air-uniformizing surface 142, and the first air-uniformizing surface 141 is connected with the first air-outlet surface. The second air-homogenizing surface 142 is connected with the fourth air-outlet surface, so that the air outlet of the first air-outlet duct and the air outlet of the second air-outlet duct are smoother, and the noise is lower.

In some embodiments of the present invention, as shown in fig. 1 to 4, the vertical air conditioning indoor unit 100 further includes a first air outlet pillar 110 and a second air outlet pillar 120. The first air outlet column 110 has a first air outlet duct and a first air-uniforming surface 141. The second air outlet column 120 has a second air outlet duct and a second air-even surface 142. The first air outlet column 110 and the second air outlet column 120 are arranged along the transverse direction and are arranged at intervals to form an induced air duct 130.

In some embodiments of the present invention, as shown in fig. 2 to 4, the front surface of the first wind exit column 110 and the foremost portion of the second wind exit column 120 are located on the same vertical plane, and the rear surface of the first wind exit column 110 is located at the rear side of the rear surface of the second wind exit 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 to say, along fore-and-aft direction and along the transverse direction, the size of first air outlet column 110 all is greater than the size of second air outlet column 120 for vertical air conditioning indoor unit 100 is asymmetric design, and the outward appearance is more novel unique, has promoted the competitiveness of product.

In some embodiments of the present invention, as shown in fig. 2 to 4, the partition 190 includes a first wind guiding curved surface arched toward the second wind exit column 120 and a second wind guiding curved surface arched toward the first wind exit column 110. The first air guide curved surface and the second air guide curved surface are beneficial to the flow of air flow. The partition 190 further has a front surface connecting the front end of the first air guiding curved surface and the front end of the second air guiding curved surface, and a rear surface connecting the rear end of the first air guiding curved surface and the rear end of the second air guiding curved surface. The front surface is a vertical plane, and the rear surface is a circular arc surface which is arched backwards.

In some embodiments of the present invention, as shown in fig. 2-4, the divider 190 is tapered from back to front. The front surface of the first outlet post 180 coincides with a vertical plane extending in the transverse direction in which the foremost end of the second outlet post 180 is located. The front surface of the partition 190 is at the rear side of the vertical plane, so that the partition 190 is not easily damaged.

In some embodiments of the invention, the angle between the tangent plane at the front edge of the first wind evening surface 141 and a vertical plane extending in the transverse direction is larger than the angle between the tangent plane at the front edge of the second wind evening surface 142 and a vertical plane extending in the transverse direction. The first wind outlet surface is used for enabling the airflow flowing along the first wind outlet surface to flow forwards and towards the oblique front direction close to the second wind outlet column 120. The second wind outlet surface 112 is used for making the airflow flowing along the second wind outlet surface flow forwards and obliquely forwards close to the second wind outlet column 120. The third wind outlet surface 121 is used for making the airflow flowing along the third wind outlet surface flow forward and obliquely forward close to the first wind outlet pillar 110. The fourth wind outlet surface is used for enabling the airflow flowing along the fourth wind outlet surface to flow forwards and obliquely forwards close to the first wind outlet column 110.

In some embodiments of the present invention, vertical planes extending in the front-rear direction, on which the front edge 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 respectively located, are a first vertical plane, a second vertical plane, a third vertical plane, and a 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 5.5 times. The front end of the induced air duct 130 extends in the front-rear direction, and the width of the induced air duct 130 is 1.5 times to 3.5 times of the distance between the third vertical plane and the fourth vertical plane. Preferably, it is 2.5 times.

In some embodiments of the present invention, as shown in fig. 2 to 4, the first air outlet column 110 is provided with a first air inlet communicated 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, and the heat exchange fan 114 makes air flow enter the first air outlet column 110 from a first air inlet, and forms heat exchange air flow after exchanging heat with the heat exchanger 113, and the air flow flows out from the first air outlet duct. The heat exchange fan 114 is a crossflow fan. One end of the first air outlet surface, which is far away from the first air homogenizing surface 141, is connected with the volute tongue of the heat exchange fan 114, and the connection is in natural transition, so that air supply is smoother and noise is lower.

A second air inlet communicated with the second air outlet duct is formed in the second air outlet column 120, a non-heat-exchange fan 123 is arranged in the second air outlet column 120, and the non-heat-exchange fan 123 enables air flow to enter the second air outlet column 120 from the second air inlet and then flow out from the second air outlet duct. Non-heat exchanging fan 123 is a crossflow fan. One end of the fourth air outlet surface, which is far away from the second uniform air surface, is connected with the volute tongue of the non-heat exchange fan 123, and the connection is in natural transition, so that air supply is smoother, and noise is lower.

When the vertical air-conditioning indoor unit 100 works, when the first air outlet duct and the second air outlet duct are used for air outlet, the indoor airflow is driven by the negative pressure to be blown out from the induced air duct 130, and then the heat exchange airflow, the non-heat exchange airflow and the indoor airflow are mixed in the uniform air outlet duct 140 to form cold mixed air and then blown out, so that cold air is prevented from directly blowing people, and users feel more comfortable.

In some embodiments of the present invention, as shown in fig. 1, the indoor unit 100 of a vertical air conditioner further includes a lower case 160 and a functional module 170. The lower case 160 is disposed below the first and

second outlet columns

110 and 120. The functional module 170 is disposed in the lower case 160. The functional module 170 is configured to deliver gas, treat gas flowing therethrough, or add a substance to the airflow, and the functional module 170 cooperates with the second outlet leg 120 to form an airflow at least within the second outlet duct. For example, the functional module 170 is a humidifying device, an oxygenation device or a fresh air device, a purification device, etc., so that the airflow is humidified airflow, oxygenated airflow, or fresh air airflow or airflow after purification treatment, etc.

In some embodiments of the present invention, an airflow inlet is disposed on the lower casing 160, and the airflow inlet may be a fresh air inlet or an indoor air inlet. For example, the lower case 160 is provided with a fresh air inlet and an indoor air inlet, and a damper device for selectively opening the fresh air inlet and the indoor air inlet.

The functional module 170 includes a lower blower that forces airflow into the airflow inlet and then out the outlet of the functional module 170. The outlet of the functional module 170 is communicated with the second air outlet duct. For example, the outlet of the functional module 170 may be communicated with the upper end or the lower end of the second outlet duct. When the function module 170 is a fresh air device, the outlet of the function module 170 may be the outlet of a lower fan, which may also be referred to as a fresh air fan.

In some embodiments of the present invention, the outlet of the functional module 170 is communicated with the second outlet duct at 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 air outlet duct through the non-heat exchange fan 123, so that the mixing of the airflows is more uniform, and the mixing effect is better. In some embodiments, a damper may be disposed at the second air inlet to close the second air inlet, and the second air outlet duct only flows the air from the air inlet. When the lower fan does not work, the second air outlet duct only flows out the airflow from the second air inlet. Of course, the outlet of the functional module 170 may also be provided with a damper, so that the second outlet duct only flows out of the airflow from the second inlet.

The embodiment of the invention also provides a control method of the vertical air-conditioning indoor unit, wherein the vertical air-conditioning indoor unit is the vertical air-conditioning indoor unit 100 in any embodiment; the control method comprises the following steps:

when the absolute value of the difference is less than the first preset value, each of the columns 180 rotates to a position extending in the lateral direction; at this time, the vertical air-conditioning indoor unit 100 is in the small-air-volume aggregated uniform-air mode, the effective air-out area of the outlet of the uniform-air-out duct 140 is reduced, the air-out volume is reduced, the uniform-air-volume ratio is increased, the air-out temperature is higher, the cooling effect is better, and the vertical air-conditioning indoor unit is suitable for a constant temperature control scene;

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 columns 180 rotates to a position extending in the front-rear direction; at this time, the vertical air conditioner indoor unit 100 is in a large air volume aggregation air uniformization mode, the effective air outlet area of the outlet of the air uniformization air outlet duct 140 is increased, the air outlet volume is increased, the air supply distance is long, the room heat exchange speed is high, and the vertical air conditioner indoor unit is suitable for a rapid heat exchange scene;

when the absolute value of the difference is greater than or equal to the second preset value, the front end of each of the columns 180 is rotated to a position close to the partition 190, and preferably, each of the columns is rotated to a position contacting the front end of the side of the partition facing the column. At this time, the vertical air conditioner indoor unit 100 is in a large air volume bundled air supply mode, basically has no passive uniform air, has a large air output and a low air output temperature, and is suitable for a scene with high indoor temperature and needing rapid cooling. For example, the first preset value is 1 ℃ and the second preset value is 3 ℃.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. An indoor unit of a floor type air conditioner, comprising:

2. The indoor unit of an upright air conditioner as claimed in claim 1, wherein each of the air guide posts is rotatably provided around an axis extending in a lengthwise direction of the air uniforming outlet duct therethrough; each of the columns is rotatable to a position of contact with a front end of a side of the partition facing the column.

3. The indoor unit of a floor air conditioner according to claim 1, wherein the two curved lines are arranged symmetrically so that the outer contour is at least an axisymmetric figure, and the rotation axis of each of the air guide posts is located on a symmetry plane of the two curved lines and in a middle portion in a length direction of the air guide post.

4. The indoor unit of a floor air conditioner according to claim 3, wherein the outer contour is an elliptical shape; the ratio of the distance of the outer contour in the length direction to the distance of the outer contour in the thickness direction is 1.7 to 2.1.

5. The indoor unit of a floor air conditioner according to claim 1,

the front end of the separator is right opposite to the middle part of the outlet of the uniform air outlet channel;

6. The indoor unit of a floor air conditioner according to claim 1,

the air-homogenizing air outlet channel is gradually expanded from back to front and then gradually contracted.

7. The indoor unit of a floor air conditioner according to claim 1,

the first air outlet duct is provided with a first air outlet surface and a second air outlet surface which are arranged oppositely, and the second air outlet duct is provided with a third air outlet surface and a fourth air outlet surface which are arranged oppositely;

the air-homogenizing air outlet channel is provided with a first air-homogenizing surface and a second air-homogenizing surface, and the first air-homogenizing surface is connected with the first air outlet surface; the second air-homogenizing surface is connected with the fourth air-outlet surface;

the vertical air conditioner indoor unit further comprises:

8. An indoor unit of a floor type air conditioner according to claim 1,

the separator comprises a first air guide curved surface arched towards the second air outlet column and a second air guide curved surface arched towards the first air outlet column;

the separator is also provided with a front surface for connecting the front end of the first air guide curved surface and the front end of the second air guide curved surface and a rear surface for connecting the rear end of the first air guide curved surface and the rear end of the second air guide curved surface; the front surface is a vertical plane, and the rear surface is a circular arc surface which is arched backwards;

the separator is in a gradually expanding shape from back to front; the front surface of the first air outlet column is superposed with a vertical plane extending along the transverse direction and where the foremost end of the second air outlet column is located; the front surface of the divider is on the rear side of the vertical plane.

9. The indoor unit of a floor air conditioner according to claim 7,

a first air inlet communicated with the first air outlet duct is formed in the first air outlet column; a heat exchanger and a heat exchange fan are arranged in the first air outlet column, the heat exchange fan enables airflow to enter the first air outlet column from the first air inlet, heat exchange is carried out between the airflow and the heat exchanger to form heat exchange airflow, and the heat exchange airflow flows out of the first air outlet duct; the heat exchange fan is a cross-flow fan;

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 of the second air outlet duct; the non-heat exchange fan is a cross-flow fan.

10. A control method of a vertical air conditioner indoor unit according to any one of claims 1 to 9, comprising:

when the absolute value of the difference is smaller than a first preset value, each wind guide post rotates to a position extending along the transverse direction; when the absolute value of the difference is greater than or equal to a first preset value and smaller than a second preset value, each wind guide post rotates to a position extending in the front-rear direction; when the absolute value of the difference is greater than or equal to a second preset value, each of the columns rotates to a position in contact with the front end of the side of the partition facing the column.