CN215260437U - Air duct assembly of air conditioner and air conditioner - Google Patents

Abstract

The utility model discloses a wind channel subassembly and air conditioner of air conditioner, the wind channel subassembly includes: the air duct shell is provided with a first air duct and a second air duct, a communication opening communicated with the first air duct is formed in a first side wall of the second air duct, an air outlet is formed in a second side wall of the second air duct, and the first side wall and the second side wall are intersected; the air outlet side of the communicating port is arranged in the diversion part, and the diversion part is provided with a first diversion surface and a second diversion surface, wherein the first diversion surface is used for guiding the direction of the air direction blown out from the communicating port away from the communicating port, the second diversion surface is positioned on one side of the first diversion surface away from the air outlet, and the second diversion surface is used for guiding the direction of the air direction blown out from the communicating port close to the air outlet. According to the utility model discloses air duct assembly can pass through and the water conservancy diversion to the wind that blows in the second wind channel through the intercommunication mouth, reduces the production of vortex, effectively solves the problem that air attenuation, energy consumption are great and the noise is great among the correlation technique, has improved the refrigeration heating efficiency of air conditioner.

Description

Air duct assembly of air conditioner and air conditioner

Technical Field

The utility model relates to an air conditioner technical field, more specifically relates to an air duct assembly and air conditioner of air conditioner.

Background

In the related art, the shape of the air duct outlet is suddenly changed, vortex is easily generated, air quantity loss is caused, refrigerating and heating efficiency is low, large vortex noise is generated, and use experience is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an air duct assembly for an air conditioner, which can improve the air loss and noise caused by the vortex in the related art.

Another object of the present invention is to provide an air conditioner with the above air duct assembly.

According to the utility model discloses air duct assembly of air conditioner, include: the air duct shell is provided with a first air duct and a second air duct, a communication opening communicated with the first air duct is formed in a first side wall of the second air duct, an air outlet is formed in a second side wall of the second air duct, and the first side wall and the second side wall are intersected; the air outlet side of the communication port is provided with a first guide surface and a second guide surface, wherein the first guide surface is used for keeping away from the air direction blown out by the communication port, the second guide surface is located away from one side of the air outlet by the first guide surface and is used for keeping close to the air direction blown out by the communication port, and the direction of the air outlet is guided by the direction of the air outlet.

According to the utility model discloses air duct assembly of air conditioner sets up water conservancy diversion portion and water conservancy diversion portion through the air-out side at the intercommunication mouth and has first water conservancy diversion face and second water conservancy diversion face, makes the wind energy that blows in the second wind channel through the intercommunication mouth enough pass through first water conservancy diversion face and second water conservancy diversion face and pass through and the water conservancy diversion, reduces the production of vortex, effectively solves the damping of the amount of wind among the correlation technique, the great and great problem of noise of energy consumption, has improved the refrigeration heating efficiency of air conditioner.

In addition, according to the present invention, the air duct assembly of the air conditioner according to the above embodiment may further have the following additional technical features:

according to some embodiments of the utility model, the intercommunication mouth with the contained angle of first water conservancy diversion face is the obtuse angle.

According to some embodiments of the present invention, the communication opening and the first guiding surface form an angle of 120 ° to 140 °.

According to some embodiments of the utility model, the lower border of intercommunication mouth with the diapire interval of second wind channel sets up, first water conservancy diversion is towards keeping away from the direction and the downward sloping of intercommunication mouth extend, the second water conservancy diversion is towards being close to the direction and the downward sloping of air outlet extend.

According to some embodiments of the present invention, the upper edge of the first flow guiding surface is lower than the lower edge of the communication port or is flush with the lower edge of the communication port; the upper edge of the second flow guide surface is lower than the lower edge of the communication opening or is flush with the lower edge of the communication opening.

According to some embodiments of the present invention, the upper edge of the first flow guiding surface is connected to the opening edge of the communication opening in a smooth transition manner, and the lower edge is connected to the bottom wall of the second air duct; the second air duct is provided with a third side wall opposite to the second side wall, the upper edge of the second flow guide surface is connected with the third side wall, and the lower edge of the second flow guide surface is connected with the bottom wall of the second air duct.

According to some embodiments of the invention, the first flow guiding surface and the second flow guiding surface are in smooth transition connection.

According to some embodiments of the invention, the first flow guiding surface comprises at least one of a planar surface and a curved surface; the second flow guide surface includes at least one of a plane and a curved surface.

According to some embodiments of the invention, the air guide portion is integrally formed at the air duct shell.

According to the utility model discloses the air conditioner includes according to the utility model discloses the wind channel subassembly of air conditioner.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a cross-sectional view of an air duct assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of an air duct assembly according to an embodiment of the present invention;

FIG. 3 is a front view of an air duct assembly according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a simulated airflow graph of an air duct assembly according to an embodiment of the present invention;

fig. 6 is an emulated simulated airflow vector diagram of an air duct assembly in accordance with an embodiment of the present invention;

FIG. 7 is a schematic view of a structure of a duct in the related art;

FIG. 8 is a simulated airflow graph of a duct of the related art;

FIG. 9 is a vector diagram of simulated airflow of a duct in the related art.

Reference numerals:

an air duct assembly 100;

an air duct case 10; a first air duct 101; a second air duct 102; a communication port 103; an air outlet 104; an air inlet 105; a first side wall 11; a second side wall 12; a third side wall 13; the bottom wall 14 of the second air duct 102; a volute tongue 15;

a flow guide part 20; a first flow guide surface 21; a second flow guide surface 22;

a wind wheel 30;

in the related art: an air duct shell 10'; a first air duct 101'; a second air duct 102'; a communication port 103'; a volute tongue 15'.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a first feature" or "a second feature" may include one or more of the features, and "a plurality" means two or more, and the first feature may be "on" or "under" the second feature, and 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, and the first feature being "on", "above" and "above" the second feature may include the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is higher in level than the second feature.

The living standard of people in the current society is continuously improved, and higher requirements are also put forward for air conditioners. Due to the unreasonable design of the air duct of the air conditioner, the indoor side of the conventional air conditioner (such as a window type air conditioner) has the following disadvantages: uneven air supply, lower air quantity, higher energy consumption, higher noise and poorer sound quality.

In some related technologies, the shape of the outlet of the air duct is suddenly changed, reasonable transition is not performed, vortex is easily generated to cause air quantity loss, and therefore the refrigeration and heating efficiency is low and the energy consumption is high. In addition, as the airflow field in the air duct has a larger vortex area and the air speed is higher, larger vortex noise can be generated, the noise is higher and the tone quality is poorer.

Based on this, the utility model provides a wind channel subassembly 100 of air conditioner, the wind channel structure through reasonable in design's wind channel subassembly 100 makes the air current flow in the wind channel smooth and easy, reduces the production of vortex in the wind channel to improve the refrigeration of air conditioner, heat-producing ability under the condition that does not improve the noise effectively.

An air duct assembly 100 of an air conditioner and an air conditioner having the same according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

Referring to fig. 1 and 2, an air duct assembly 100 of an air conditioner according to an embodiment of the present invention may include: an air duct case 10 and a guide 20.

Specifically, the air duct shell 10 is formed with a first air duct 101 and a second air duct 102, the first air duct 101 and the second air duct 102 are communicated through a communication opening 103, and the second air duct 102 discharges air through an air outlet 104, so that the air in the first air duct 101 can enter the second air duct 102 through the communication opening 103 and then be blown out through the air outlet 104.

As shown in fig. 2, the second air duct 102 has a first side wall 11 and a second side wall 12 intersecting with each other, wherein the first side wall 11 is provided with a communication opening 103, and the second side wall 12 is provided with an air outlet 104. In other words, after the airflow enters the second air duct 102 from the first air duct 101, the flow direction needs to be changed to flow to the air outlet 104.

For example, in the embodiment shown in fig. 1 to 4, the second air duct 102 is a substantially rectangular parallelepiped air duct, a left side wall of the rectangular parallelepiped air duct is formed as the first side wall 11 and is provided with the communication opening 103, and a front side wall of the rectangular parallelepiped air duct is formed as the second side wall 12 and is provided with the air outlet 104. The second air duct 102 and the first air duct 101 communicate to generally form an "L" shaped air duct.

It should be noted that, in the description of the present invention, the directions such as "upper", "lower", "left", "right", "front", "back", etc. are all based on the directions or position relationships shown in the drawings, and are not limited to the directions in the practical application process of the air conditioner.

In some embodiments, the first air duct 101 may be formed as a mounting cavity and used for mounting the wind wheel 30, and the first side wall 11 may include a volute tongue 15, and the volute tongue 15 cooperates with other wall surfaces of the air duct casing 10 to define the communication opening 103. For example, in the example shown in fig. 1-4, a communication opening 103 is formed between the volute tongue 15 and the top wall of the second air duct 102, and the upper edge of the volute tongue 15 is formed as the lower edge of the communication opening 103; of course, in other embodiments, the volute tongue 15 may be formed with the communication opening 103 between the bottom wall 14 of the second air duct 102, and the lower edge of the volute tongue 15 is formed as the upper edge of the communication opening 103.

In some embodiments of the present invention, as shown in fig. 1 and 2, the air duct shell 10 may also be formed with an air inlet 105, the air inlet 105 is communicated with the first air duct 101, and the air is driven by the wind wheel 30 in the first air duct 101 to enter the first air duct 101 through the air inlet 105. Specifically, the wind wheel 30 may be a centrifugal wind wheel, and the air inlet 105 and the air outlet 104 may be disposed on the same side of the air duct casing 10, for example, both disposed on the front side of the air duct casing 10, so that the air duct assembly 100 may be used in a window type air conditioner.

As shown in fig. 1 and 2, the flow guide portion 20 may be provided on the air outlet side of the communication port 103 to guide the air flowing into the second air passage 102 through the communication port 103. Specifically, flow guide 20 may have a first flow guide surface 21 and a second flow guide surface 22. The first guiding surface 21 can guide the direction of the wind blown out from the communication port 103 away from the communication port 103, the second guiding surface 22 is located on the side of the first guiding surface 21 away from the wind outlet 104, and the second guiding surface 22 can guide the direction of the wind blown out from the communication port 103 close to the wind outlet 104.

It should be noted that in fig. 1 and 2, the filling lines on the first flow guide surface 21 and the second flow guide surface 22 are only for facilitating the understanding of the structure, and do not represent cross-sectional lines or structural lines.

Therefore, the diversion part 20 is located at the corner of the air duct, and the air blown out from the communication port 103 partially blows to the second diversion surface 22 to directly flow to the air outlet 104 under the diversion effect of the second diversion surface 22, partially blows to the first diversion surface 21, is guided by the first diversion surface 21, then blows to the second diversion surface 22, and flows to the air outlet 104 under the diversion effect of the second diversion surface 22. The first guide surface 21 and the second guide surface 22 are matched to ensure that the air flowing into the second air duct 102 from the communicating port 103 flows uniformly and smoothly in the second air duct 102, so that a vortex is not easily formed, the air quantity loss is reduced, the generation of large noise can be effectively avoided even if the air speed is high, the hearing of the air conditioner is good, the refrigerating and heating efficiency is high, and the energy consumption is low.

According to the utility model discloses air duct assembly 100 of air conditioner, it has first water conservancy diversion face 21 and second water conservancy diversion face 22 to set up water conservancy diversion portion 20 and water conservancy diversion portion 20 through the play wind side at intercommunication mouth 103, the wind energy that makes to blow in second wind channel 102 through intercommunication mouth 103 can pass through first water conservancy diversion face 21 and second water conservancy diversion face 22 and pass through and the water conservancy diversion, reduce the production of vortex, effectively solve the amount of wind decay among the correlation technique, the great and great problem of noise of energy consumption, the refrigeration heating efficiency of air conditioner has been improved.

According to the utility model discloses air conditioner includes according to the utility model discloses air duct assembly 100 of air conditioner. Because according to the utility model discloses air duct assembly 100 of air conditioner has above-mentioned profitable technological effect, consequently according to the utility model discloses an air conditioner, it has first water conservancy diversion face 21 and second water conservancy diversion face 22 to set up water conservancy diversion portion 20 and water conservancy diversion portion 20 through the play wind-out side at intercommunication mouth 103, the wind energy that makes to blow in second wind channel 102 through intercommunication mouth 103 enough passes through first water conservancy diversion face 21 and second water conservancy diversion face 22 and passes through and the water conservancy diversion, reduce the production of vortex, effectively solve the decay of the amount of wind among the correlation technique, the great problem of noise of energy consumption, the refrigeration heating efficiency of air conditioner has been improved.

According to some embodiments of the present invention, as shown in fig. 2 and 3, the communication opening 103 and the first guiding surface 21 form an obtuse angle. Therefore, the air blown out through the communication port 103 can be diffused under the guidance of the first flow guide surface 21, a part of the space (an upper space as shown in fig. 3) in the second air duct 102 faces the communication port 103, and a part (a lower space as shown in fig. 3) faces the first flow guide surface 21 and is staggered from the communication port 103, and the air blown out through the communication port 103 is guided by the first flow guide surface 21 to the part staggered from the communication port 103, so that the air distribution in the second air duct 102 can be more uniform, and the air can be uniformly blown out through the air outlet 104.

In some embodiments, as shown in fig. 2 and 3, the communication opening 103 and the first flow guide surface 21 form an angle of 120 ° to 140 ° and a diffuser angle of 30 ° to 50 °. In above-mentioned contained angle within range, the diffusion angle design is more reasonable, can enough play good diffusion effect, effectively improves the air-out homogeneity, can avoid again that the too big part that leads to staggering with intercommunication mouth 103 of diffusion angle forms the vortex, has further reduced the production of vortex, reduces the amount of wind decay. In some embodiments, the communication opening 103 may be at an angle of 120 °, 130 °, 135 °, 140 °, and so on, with respect to the first flow guide surface 21.

According to some embodiments of the present invention, as shown in fig. 1-4, the lower edge of the communication port 103 may be spaced apart from the bottom wall 14 of the second air duct 102 to allow the air flow to expand within the second air duct 102. The first diversion surface 21 may extend downward in a direction away from the communication port 103, and the second diversion surface 22 may extend downward in a direction close to the air outlet 104. For example, in the example shown in fig. 1-4, the first flow guide surfaces 21 extend obliquely downward to the right, and the second flow guide surfaces 22 extend obliquely downward to the front. The first guide surface 21 can avoid the sudden change of the shape of the air duct structure, so that the vortex is formed in the area between the lower edge of the communication port 103 and the bottom wall 14 of the second air duct 102, the second guide surface 22 can avoid the sudden change of the shape of the air duct structure to cause the vortex, on the other hand, can guide the air flow at the turning position of the air duct, reduce the flow resistance, and avoid the large air volume loss caused by the direct blowing of the air flow to the side wall opposite to the communication port 103 and turning again.

Specific structures and arrangement structures of the first flow guiding surface 21 and the second flow guiding surface 22 are described below by taking as an example that the lower edge of the communication port 103 is spaced from the bottom wall 14 of the second air duct 102, and the first flow guiding surface 21 and the second flow guiding surface 22 extend downward, and it will be understood by those skilled in the art that the upper edge of the communication port 103 is spaced from the top wall of the second air duct 102, and the first flow guiding surface 21 and the second flow guiding surface 22 extend upward obliquely according to the following description.

According to some embodiments of the utility model, as shown in fig. 1, fig. 3 and fig. 4, the last border of first water conservancy diversion face 21 can be less than the lower border of intercommunication mouth 103, perhaps the last border of first water conservancy diversion face 21 can be along the parallel and level with the lower border of intercommunication mouth 103, so that the wind energy that intercommunication mouth 103 flowed into second wind channel 102 flows to first water conservancy diversion face 21 more smoothly enough, and avoid water conservancy diversion portion 20 to cause the wind that intercommunication mouth 103 flowed into and shelter from, reduced the flow resistance, make the air-out more even.

According to some embodiments of the utility model, as shown in fig. 1, fig. 3 and fig. 4, the last border of second water conservancy diversion face 22 can be less than the lower border of intercommunication mouth 103, perhaps the last border of second water conservancy diversion face 22 can be along the parallel and level with the lower border of intercommunication mouth 103, so that the wind energy that intercommunication mouth 103 flowed into second wind channel 102 flows to second water conservancy diversion face 22 more smoothly enough, and avoid water conservancy diversion portion 20 to lead to the fact the wind that the intercommunication mouth 103 flowed into to shelter from, reduced the flow resistance, make the air-out more even.

In some embodiments, as shown in fig. 1 and fig. 3, an upper edge of the first guiding surface 21 may be in smooth transition connection with an opening edge of the communication port 103, and a lower edge of the first guiding surface 21 is connected to the bottom wall 14 of the second air duct 102, so as to avoid wind resistance or noise generated between the first guiding surface 21 and the edge of the communication port 103, and the first guiding surface 21 can smoothly guide the wind to the entire longitudinal area of the second air duct 102, thereby improving uniformity of the wind outlet.

For example, in the embodiment including the volute tongue 15, the first flow guiding surface 21 may be located on a side of the volute tongue 15 facing away from the first air duct 101, and the first flow guiding surface 21 may be smoothly transited to an upper edge of the volute tongue 15.

In some embodiments, as shown in fig. 1 and 4, the second air duct 102 further has a third side wall 13 (a rear side wall as shown in fig. 2), and the third side wall 13 is opposite to the second side wall 12, i.e., opposite to the air outlet 104. The upper edge of the second deflector surface 22 may be connected to the third sidewall 13, and the lower edge of the second deflector surface 22 may be connected to the bottom wall 14 of the second duct 102. So as to avoid air loss or noise caused by the gap between the second guiding surface 22 and the wall surface of the second air duct 102, and the second guiding surface 22 can smoothly guide the air to the whole longitudinal area of the second air duct 102, so as to realize smoother turning of the air at the corner and reduce air loss.

In some embodiments of the present invention, as shown in fig. 1 and fig. 2, the first guiding surface 21 and the second guiding surface 22 may be connected to each other, so that the wind guided by the first guiding surface 21 can smoothly flow to the second guiding surface 22, and the first guiding surface 21 and the second guiding surface 22 realize the matching guiding. In some embodiments, the first guiding surface 21 and the second guiding surface 22 may be connected in a smooth transition manner, for example, may be connected by a smooth fillet, or may be connected by a curved surface in a smooth manner, so as to reduce the air volume loss when the air flows through the connection between the first guiding surface 21 and the second guiding surface 22, and further reduce the wind resistance.

It should be noted that, in the embodiment of the present invention, the first guiding surface 21 may include at least one of a plane and a curved surface, and the second guiding surface 22 may include at least one of a plane and a curved surface, which are all within the scope of the present invention. For example, the first flow guiding surface 21 may be a plane as shown in fig. 3, or the first flow guiding surface 21 may be a folded surface formed by a plurality of planes, or the first flow guiding surface 21 may be a smooth curved surface, etc.; the second flow guide surface 22 may be in a plane as shown in fig. 4, or the second flow guide surface 22 may be a folded surface formed by a plurality of planes, or the second flow guide surface 22 may be a smooth curved surface, etc.

In some embodiments of the present invention, the diversion portion 20 and the air duct shell 10 may be separate pieces, and the diversion portion 20 is disposed in the second air duct 102 of the air duct shell 10 to guide the air flow.

In other embodiments of the present invention, as shown in fig. 1 to 4, the flow guide portion 20 may be integrally formed on the duct casing 10, in other words, the wall surface of the second duct 102 is deformed to form the first flow guide surface 21 and the second flow guide surface 22. For example, in the embodiment where the duct case 10 includes the volute tongue 15, the side of the volute tongue 15 facing away from the first duct 101 may be obliquely disposed to form the first flow guide surface 21, and the lower portion of the rear wall surface of the second duct 102 may be obliquely disposed forward to form the second flow guide surface 22. The flow guide part 20 and the air duct shell 10 do not need to be assembled, and the air quantity loss or noise caused by the gap formed between the flow guide part 20 and the air duct shell 10 is avoided.

An air duct assembly 100 according to an embodiment of the present invention is described in detail below with reference to the accompanying drawings, it being understood that the following description is illustrative only and should not be taken as limiting the invention.

In some related arts, as shown in fig. 7, the air duct case 10 'includes a volute tongue 15' to separate the first air duct 101 'and the second air duct 102', and the first air duct 101 'and the second air duct 102' communicate through a communication port 103 'above the volute tongue 15'. The side surface of the volute tongue 15 ' back to the first air duct 101 ' extends downwards in a substantially vertical mode, so that the size of the air duct at the communication port 103 ' changes suddenly, high-speed airflow is separated from the container in a flowing mode to form a vortex area, and air flowing out of the communication port 103 ' is deflected to flow out of the air outlet after impacting the side wall surface opposite to the communication port 103 ' in a crooked area, so that the generation of vortex is increased, the vortex noise is high, and the air volume loss is high.

According to an embodiment of the present invention, as shown in fig. 1-4, the air duct shell 10 includes a spiral case and a spiral tongue 15, the spiral tongue 15 is connected to a bottom wall of the spiral case and protrudes upward to separate the space in the spiral case into a first air duct 101 and a second air duct 102, and a communication opening 103 for communicating the first air duct 101 and the second air duct 102 is formed at an upper side of the spiral tongue 15. The air inlet 105 and the air outlet 104 are both located on the front side of the air duct housing 10, and a turn is formed in the second air duct 102 on the air outlet side of the communication port 103. This type of duct housing 10 may be used for an indoor side duct of a window type air conditioner.

With continued reference to fig. 1-4, the flow guiding portion 20 is disposed at a corner of the air duct, and has a first flow guiding surface 21 and a second flow guiding surface 22, forming a slope structure capable of guiding flow. The first flow guiding surface 21 is a diffuser extending downward from the upper edge of the volute tongue 15 to a direction away from the communication opening 103, and the second flow guiding surface 22 is a flow guiding structure extending downward from the rear wall surface of the second air duct 102 to the air outlet 104. Through setting up water conservancy diversion portion 20, can reduce the local air loss that produces because of the sudden change of wind channel structure size, it is smooth and easy to realize the air-out, and the amount of wind improves, and the noise reduces.

The highest part (namely the upper edge) of the first diversion surface 21 is connected with the volute tongue 15 and is formed by gradually lowering the volute tongue 15 to the side surface. The second air duct 102 is formed with a diffuser section by providing the first flow guiding surface 21. The high-speed airflow passing through the communication opening 103 is pressurized through the diffusion section with the gradually increased size of the air duct, the speed is reduced, and the static pressure is increased. Under the flow guiding effect of the first flow guiding surface 21, the second air duct 102 has no shape and size mutation, so that the generation of a vortex region is avoided.

The highest position of the second guide surface 22 is connected to the rear wall surface of the second air duct 102, and is formed by gradually lowering the rear wall surface of the second air duct 102 forward. The height of the second diversion surface 22 does not exceed the height of the volute tongue 15, so that the air quantity is prevented from being reduced due to obstruction to the air flow. Because a corner area is formed at the air outlet 104 of the communication port 103, the corner area belongs to an abrupt change area of the air duct structure, and a large local loss exists if a reasonable flow guide structure is not designed. The second flow guide surface 22 is reasonably arranged by using the volute tongue 15, and extends gradually from the rear wall surface of the second air duct 102 on the right side of the volute tongue 15 to the air outlet 104 at the highest starting position to reduce the height, so that the airflow flowing separation caused by sudden change of the air duct can be reduced, and the air volume loss and the vortex noise caused by forming a larger spherical vortex can be prevented.

The related art shown in fig. 7 is used as a comparative example, and flow field simulation and experimental comparison are performed with an embodiment of the present invention shown in fig. 1 to 4. Experimental result shows, under the same rotational speed condition of wind wheel 30, the utility model discloses the 100 amount of wind channel subassembly can promote about 10%, and the noise descends 1 dBA. And the effect of air volume improvement is also verified through simulation analysis of computer software. And can be seen from the airflow line diagrams shown in fig. 5-6 and 8-9 and the airflow vector diagrams on the cross section, the air duct assembly 100 of the embodiment of the present invention can effectively improve the vortex area in the air duct, so that the airflow flows smoothly and the air outlet is uniform.

Other constructions and operations of the air duct assembly 100 and the air conditioner according to embodiments of the present invention are known to those of ordinary skill in the art and will not be described in detail herein.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the terms "embodiment," "specific embodiment," "example," etc., mean 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.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An air duct assembly of an air conditioner, comprising:

the air duct shell is provided with a first air duct and a second air duct, a communication opening communicated with the first air duct is formed in a first side wall of the second air duct, an air outlet is formed in a second side wall of the second air duct, and the first side wall and the second side wall are intersected;

a flow guide part which is arranged at the air outlet side of the communicating opening and is provided with a first flow guide surface and a second flow guide surface, wherein,

the first flow guide surface is used for guiding the direction of the wind blown out from the communication port away from the communication port, and the second flow guide surface is located on one side of the first flow guide surface away from the air outlet and used for guiding the direction of the wind blown out from the communication port close to the air outlet.

2. The air duct assembly of an air conditioner according to claim 1, wherein an included angle between the communication opening and the first flow guide surface is an obtuse angle.

3. The air duct assembly of an air conditioner according to claim 2, wherein the communication opening forms an angle of 120 ° to 140 ° with the first flow guide surface.

4. The air duct assembly of an air conditioner according to claim 1, wherein a lower edge of the communication opening is spaced apart from a bottom wall of the second air duct, the first air guide surface extends in a direction away from the communication opening and is inclined downward, and the second air guide surface extends in a direction close to the air outlet and is inclined downward.

5. The air duct assembly of an air conditioner according to claim 4,

the upper edge of the first flow guide surface is lower than the lower edge of the communication opening or is flush with the lower edge of the communication opening;

the upper edge of the second flow guide surface is lower than the lower edge of the communication opening or is flush with the lower edge of the communication opening.

6. The air duct assembly of an air conditioner according to claim 4,

the upper edge of the first flow guide surface is in smooth transition connection with the opening edge of the communication opening, and the lower edge of the first flow guide surface is connected with the bottom wall of the second air duct;

the second air duct is provided with a third side wall opposite to the second side wall, the upper edge of the second flow guide surface is connected with the third side wall, and the lower edge of the second flow guide surface is connected with the bottom wall of the second air duct.

7. The air duct assembly of an air conditioner according to claim 1, wherein the first flow guide surface and the second flow guide surface are smoothly transitionally connected.

8. The air duct assembly of an air conditioner according to claim 1,

the first flow guide surface comprises at least one of a plane and a curved surface;

the second flow guide surface includes at least one of a plane and a curved surface.

9. The air duct assembly of an air conditioner according to any one of claims 1 to 8, wherein the flow guide portion is integrally formed at the air duct case.

10. An air conditioner characterized by comprising the air duct assembly of the air conditioner according to any one of claims 1 to 9.

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