Hanging air conditioner

Abstract

The utility model provides an air conditioner hanging machine. The air conditioner hanging machine comprises a shell and at least one fan assembly. The fan assembly is arranged in the shell; the fan assembly comprises an axial flow fan and a fan cover, wherein the axial flow fan is configured to promote formation of airflow entering and flowing out of the shell; the air guide ring is provided with an air inducing section and an air blocking section; at least part of the axial flow fan is arranged in the air inducing section, the air blocking section is in a flaring shape, and the inlet end of the air blocking section is connected to the outlet end of the air inducing section or connected to the peripheral wall of the air inducing section. The air outlet volume of the air conditioner hanging machine is large.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air conditioner, especially to a kind of air conditioner hanging machine. BACKGROUND

[0002] With the improvement of living standards, users pay more and more attention to the comfort of living environment. The air conditioner hanging machine in the related art is provided with an axial flow fan and a heat exchanger. The axial flow fan is used to suck indoor air into the air conditioner hanging machine, so that the air exchanges heat with the heat exchanger, and then the air is blown into the room, thereby adjusting the temperature in the room. However, in the related art, when the axial flow fan is running, the airflow on the outer periphery side of the axial flow fan may backflow, which reduces the air supply efficiency of the axial flow fan and causes the air conditioner hanging machine to have a small air volume. SUMMARY

[0003] In view of the above problems, the present utility model is proposed to provide an air conditioner hanging machine that overcomes the above problems or at least partially solves the above problems.

[0004] The air conditioner hanging machine of the present utility model aims to solve the problem of backflow of the airflow on the outer periphery side of the axial flow fan when the axial flow fan is blowing air, so as to improve the air volume of the air conditioner hanging machine.

[0005] The air conditioner hanging machine of the present utility model comprises a housing and at least one fan assembly. The fan assembly is arranged in the housing. The fan assembly comprises an axial flow fan configured to facilitate the formation of airflow entering and flowing out of the housing, and a wind guide ring having an air guide section and a wind blocking section. At least part of the axial flow fan is arranged in the air guide section, and the wind blocking section is flared. The inlet end of the wind blocking section is connected to the outlet end of the air guide section or to the outer peripheral wall of the air guide section.

[0006] In some embodiments, the housing further has an air outlet duct, the outlet end of the wind blocking section is connected to the inner wall of the air outlet duct, and the outer peripheral contour of the outlet end of the wind blocking section is adapted to the inner wall of the air outlet duct.

[0007] In some embodiments, the inner wall of the air outlet duct is provided with an annular protrusion, and the outlet end of the wind blocking section has an annular folded edge extending outwardly, which is connected to the annular protrusion.

[0008] In some embodiments, the air conditioner hanging machine further comprises a heat exchanger arranged in the air outlet duct and located on the downstream side of the wind blocking section, so that the heat exchanger exchanges heat with the airflow. The outlet end of the wind blocking section is directly in contact with the edge of the heat exchanger.

[0009] In some embodiments, the air guide section is cylindrical, and the front end of the fan blade of the axial flow fan is located in the air guide section.

[0010] In some embodiments, the inner wall of the wind blocking section comprises a plurality of air guiding slopes, which are sequentially connected in the circumferential direction of the axial flow fan, and each of the air guiding slopes is arranged to be inclined relative to the axial direction of the air guiding ring.

[0011] In some embodiments, a part of the axial flow fan is located on the upstream side of the air guiding ring, and the ratio of the size of the part of the axial flow fan in the axial direction of the air guiding ring to the size of the whole axial flow fan in the axial direction of the air guiding ring is 0.2-0.6.

[0012] In some embodiments, the shell comprises a surrounding plate and a back plate, the back plate is connected with the surrounding plate, the surrounding plate is arranged outside the fan assembly, and at least one first air inlet structure is arranged on the surrounding plate and corresponds to the axial flow fan in the radial direction of the air guiding ring.

[0013] The back plate is located on the upstream side of the axial flow fan, the back plate comprises a wall abutting portion and an annular air inlet portion, the wall abutting portion and the annular air inlet portion are connected, and the wall abutting portion is away from the fan assembly relative to the annular air inlet portion, the annular air inlet portion is provided with at least one second air inlet structure, and the annular air inlet portion is arranged to be inclined relative to the wall abutting portion.

[0014] In some embodiments, the surrounding plate is provided with a first air inlet, and the first air inlet forms the first air inlet structure; the annular air inlet portion is provided with a second air inlet, and the second air inlet forms the second air inlet structure.

[0015] In some embodiments, the shell is provided with a third air inlet, and the third air inlet extends in the axial direction of the air guiding ring; the third air inlet comprises a first section and a second section which are sequentially connected in the axial direction of the air guiding ring; the first section is arranged on the surrounding plate, and the first section forms the first air inlet structure; and the second section is arranged on the annular air inlet portion, and the second section forms the second air inlet structure.

[0016] The air conditioner hanging machine of the embodiment of the utility model, the outer circumferential side of the axial flow fan is provided with the air guiding ring. Because the wind blocking section of the air guiding ring is in the shape of a flared mouth, the wind blocking section can block the backflow of the air flow on the outer circumferential side of the axial flow fan, and the wind blocking section can also guide the part of the air flow to be smoothly blown out from the shell, thereby greatly improving the air supply efficiency of the axial flow fan, and thus increasing the air volume of the air conditioner hanging machine of the embodiment of the utility model. In addition, the air guiding section of the air guiding ring makes the air flow pass through the blades of the axial flow fan more uniformly, thereby further improving the air supply efficiency of the axial flow fan and increasing the air volume of the air conditioner hanging machine of the embodiment of the utility model.

[0017] The above, as well as other objects, advantages, and features of the present application, will become apparent as the description proceeds. BRIEF DESCRIPTION OF DRAWINGS

[0018] Some embodiments of the present application will now be described, by way of example only, with reference to the attached figures. Identical or similar components are referred to using the same reference numerals. It should be understood that the drawings are not necessarily to scale. In the figures:

[0019] Figure 1 is a schematic structural view of an air conditioner hanging machine according to an embodiment of the present application;

[0020] Figure 2 is a schematic structural view of an air conditioner hanging machine according to an embodiment of the present application;

[0021] Figure 3 is a schematic structural view of a fan assembly according to an embodiment of the present application;

[0022] Figure 4 is a schematic structural view of an air conditioner hanging machine according to an embodiment of the present application;

[0023] Figure 5 is a schematic structural view of a fan assembly according to an embodiment of the present application;

[0024] Figure 6 is a schematic structural view of a fan assembly according to an embodiment of the present application;

[0025] Figure 7 is a schematic structural view of a fan assembly according to an embodiment of the present application;

[0026] Figure 8 is a schematic structural view of a fan assembly according to an embodiment of the present application;

[0027] Figure 9 is a schematic structural view of an air conditioner hanging machine according to an embodiment of the present application;

[0028] Figure 10 is a schematic structural view of an air conditioner hanging machine according to an embodiment of the present application;

[0029] Figure 11 is a schematic structural view of an air conditioner hanging machine according to an embodiment of the present application; Figure 10 is a schematic structural view of an air conditioner hanging machine according to an embodiment of the present application;

[0030] Reference numerals:

[0031] 100 housing; 110 air duct; 120 annular protrusion; 130 enclosure; 140 back plate; 141 wall-mounted part; 142 annular air inlet; 150 first air inlet; 160 second air inlet; 170 third air inlet; 171 first section; 172 second section; 200 axial fan; 300 air guide ring; 310 air intake section; 311 outlet end; 320 wind baffle section; 321 outlet end; 322 inlet end; 323 guide slope; 330 annular folded edge; 400 heat exchanger; 500 air guide grille. Detailed Implementation

[0032] The following reference Figures 1 to 11 This description pertains to an air conditioner unit according to an embodiment of the present invention. In this description, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature, that is, include one or more of that feature. In the description of the present invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. When a feature "includes or contains" one or more of the features it encompasses, unless otherwise specifically described, this indicates that other features are not excluded and may be further included.

[0033] Unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," and "couple" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art should be able to understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Furthermore, in the description of this embodiment, "above" or "below" the second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. That is, in the description of this embodiment, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "below" of the second feature can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] In the description of the embodiments, the description of the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", 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 utility model. In the specification, the exemplary description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The air conditioner hanging machine of the embodiments of the utility model is described below with reference to the drawings.

[0037] As shown in the drawings, Figures 1-11 The air conditioner hanging machine of the embodiments of the utility model comprises a shell 100 and at least one fan assembly, and the fan assembly is arranged in the shell 100. That is, the shell 100 defines an air outlet air duct 110, and indoor air can enter the air outlet air duct 110 from the air inlet end of the air outlet air duct 110, and then be blown into the indoor from the air outlet end of the air outlet air duct 110 after flowing through the air outlet air duct 110. One or more fan assemblies are arranged in the air outlet air duct 110.

[0038] The fan assembly comprises an axial flow fan 200 and a wind guide ring 300.

[0039] The axial flow fan 200 is configured to facilitate the formation of airflow into and out of the shell 100. The air supply range of the axial flow fan 200 is large, so that the airflow facilitated by the axial flow fan 200 can be more uniformly distributed in the air outlet air duct 110, so that the air outlet of the air outlet air duct 110 is more uniform. Moreover, the axial flow fan generates less vibration when it is running, so that the noise emitted by the axial flow fan is lower. Therefore, the user's experience is better when the air conditioner hanging machine of the embodiments of the utility model is running.

[0040] The wind guide ring 300 has a wind guide section 310 and a wind blocking section 320, and at least part of the axial flow fan 200 is arranged in the wind guide section 310, so that the airflow passes through the blades of the axial flow fan 200 more uniformly, and the air supply efficiency of the axial flow fan 200 is improved. The axial direction of the wind guide section 310 is consistent with the extension direction of the air outlet air duct 110, the wind guide section 310 guides the airflow, so that the airflow blows out of the wind guide section 310 and directly flows to the air outlet end of the air outlet air duct 110, thereby reducing the wind loss and further improving the air supply efficiency of the axial flow fan 200.

[0041] The wind blocking section 320 is in the shape of a flared mouth, that is, the outer contour size of the inlet end 322 of the wind blocking section 320 is smaller than the outer contour size of the outlet end 321 of the wind blocking section 320, and the wind blocking section 320 is directed toward the air outlet end of the air outlet air duct 110. The wind blocking section 320 is connected with the wind guide section 310.

[0042] In some alternative embodiments, as shown in Figure 5 The inlet end 322 of the wind blocking section 320 is connected to the outlet end 311 of the air guiding section 310.

[0043] In some alternative embodiments, as shown in Figure 6 The inlet end 322 of the wind blocking section 320 is connected to the outer peripheral wall of the air guiding section 310.

[0044] When the air flow on the outer peripheral side of the axial flow fan 200 has a tendency to backflow, the wind blocking section 320 not only can block the backflow of the part of the air flow, but also can guide the part of the air flow to the air outlet end of the air outlet duct 110, thereby increasing the air supply efficiency of the axial flow fan 200.

[0045] Compared with the related art, the air conditioner wall-hanging machine of the embodiment of the present application has the air guiding ring 300 arranged on the outer peripheral side of the axial flow fan 200. Since the wind blocking section 320 of the air guiding ring 300 is in the shape of a flared mouth, the wind blocking section 320 can block the backflow of the air flow on the outer peripheral side of the axial flow fan 200, and the wind blocking section 320 can also guide the part of the air flow to smoothly blow out from the casing 100, thereby greatly improving the air supply efficiency of the axial flow fan 200, and thus increasing the air outlet volume of the air conditioner wall-hanging machine of the embodiment of the present application.

[0046] In addition, the air guiding section 310 of the air guiding ring 300 makes the air flow more uniformly pass through the blades of the axial flow fan 200, thereby further improving the air supply efficiency of the axial flow fan 200, and increasing the air outlet volume of the air conditioner wall-hanging machine of the embodiment of the present application.

[0047] As shown in Figures 2-11 The air conditioner wall-hanging machine of the embodiment of the present application comprises the casing 100, the fan assembly and the heat exchanger 400. The heat exchanger 400 is arranged in the casing 100, and is used to exchange heat with the air flow flowing into the casing 100.

[0048] When the fan assembly is one, the one fan assembly is located on the upstream side of the heat exchanger 400. Alternatively, the one fan assembly is located on the downstream side of the heat exchanger 400.

[0049] When the fan assembly is multiple, the multiple fan assemblies are all located on the upstream side of the heat exchanger 400. Alternatively, the multiple fan assemblies are all located on the downstream side of the heat exchanger 400. For example Figure 3 As shown in

[0050] In some embodiments, as shown in Figure 2 andFigure 3 As shown, the air induction section 310 is in a cylindrical shape, that is, the diameter of the air induction section 310 is constant in the axial direction, and the front ends of the blades of the axial flow fan 200 are located in the air induction section 310. Since the diameter of the air induction section 310 is constant in the axial direction, the size of the passage for the air flow in the air induction section 310 is stable. When the air flow passes through the air induction section 310, the air flow can maintain a stable flow rate, thereby reducing the noise and wind loss caused by unstable air flow.

[0051] In some embodiments, as shown in Figure 5 and Figure 6 As shown, the inner wall of the air blocking section 320 includes a plurality of guide inclined surfaces 323, which are connected in sequence in the circumferential direction of the axial flow fan 200. Each guide inclined surface 323 is inclined relative to the axial direction of the air guide ring 300. Among them, the front end of each guide inclined surface 323 is away from the axial flow fan 200 in the radial direction of the axial flow fan 200 relative to the rear end thereof. That is, the air blocking section 320 forms a flared structure through the plurality of guide inclined surfaces 323.

[0052] That is, the inner wall surface of the air blocking section 320 is composed of a plurality of guide inclined surfaces 323, which can reduce the turbulence and vortex of the air flow in the air blocking section 320 compared to forming the inner wall surface of the air blocking section 320 by a curved surface, so that the air flow passes through the air blocking section 320 more stably, thereby reducing the wind loss, and thus further improving the air supply efficiency of the axial flow fan 200.

[0053] In other embodiments, the air blocking section 320 can also be in a trumpet shape, wherein the inner wall surface of the air blocking section 320 is a circular arc surface, and the axial direction of the circular arc surface is consistent with the axial direction of the air blocking section 320.

[0054] In some embodiments, as shown in Figure 3 As shown, a part of the axial flow fan 200 is located on the upstream side of the air guide ring 300, that is, a part of the axial flow fan 200 extends from the inlet end of the air induction section 310. When the axial flow fan 200 is running, the air in front of the axial flow fan 200 can be sucked into the air induction section 310 by the axial flow fan 200, and the air on the outer peripheral side of the axial flow fan 200 can also be sucked into the air induction section 310 by the axial flow fan 200, thereby further improving the air supply efficiency of the axial flow fan 200, and thus further increasing the air volume of the air conditioner hanging machine.

[0055] Optionally, the ratio of the axial dimension of a portion of the axial fan 200 in the axial direction of the guide ring 300 to the overall axial dimension of the axial fan 200 in the guide ring 300 is 0.2-0.6. Optionally, the ratio of the axial dimension of a portion of the axial fan 200 in the axial direction of the guide ring 300 to the overall axial dimension of the axial fan 200 in the guide ring 300 is 0.25-0.5. Optionally, the ratio of the axial dimension of a portion of the axial fan 200 in the axial direction of the guide ring 300 to the overall axial dimension of the axial fan 200 in the guide ring 300 is 0.3-0.4. On the one hand, this not only allows more air on the outer periphery of the axial fan 200 to be drawn into the air intake section 310, but also improves the air delivery efficiency of the axial fan 200. On the other hand, it avoids having too much of the axial fan 200 located outside the air intake section 310, so that the airflow drawn by the axial fan 200 can smoothly enter the air intake section 310.

[0056] The ratio of the dimension of a portion of the axial fan 200 in the axial direction of the guide ring 300 to the dimension of the entire axial fan 200 in the axial direction of the guide ring 300 is, but is not limited to, 0.2, 0.22, 0.25, 0.3, 0.37, 0.4, 0.44, 0.5, 0.56 or 0.6.

[0057] In some embodiments, such as Figures 9-11 As shown, the housing 100 includes a surrounding plate 130 and a back plate 140, with the back plate 140 connected to the surrounding plate 130. The surrounding plate 130 surrounds the outside of the fan assembly and has at least one first air inlet structure, meaning that the surrounding plate 130 has one or more first air inlet structures for allowing outside air to enter the housing 100. The first air inlet structure corresponds to the axial fan 200 radially in the air guide ring 300, allowing outside air to flow through the first air inlet structure to the outer periphery of the axial fan 200.

[0058] The back plate 140 is located on the upstream side of the axial flow fan 200, and the back plate 140 includes a wall-attached portion 141 and an annular air inlet portion 142. The wall-attached portion 141 and the annular air inlet portion 142 are connected, and the wall-attached portion 141 is away from the fan assembly relative to the annular air inlet portion 142, that is, the wall-attached portion 141 is located behind the annular air inlet portion 142. The annular air inlet portion 142 is provided with at least one second air inlet structure, that is, the annular air inlet portion 142 is provided with one or more second air inlet structures, and the second air inlet structure is used for allowing external air to enter the shell 100. The annular air inlet portion 142 is arranged to be inclined relative to the wall-attached portion 141, and the outer contour size of the annular air inlet portion 142 gradually decreases from front to back. When the shell 100 is installed on the wall, the wall-attached portion 141 is in contact with the wall. Due to the inclination of the annular air inlet portion 142 relative to the wall-attached portion 141, there is a certain air inlet space between the annular air inlet portion 142 and the wall, which ensures that the second air inlet structure can smoothly inlet air.

[0059] The shell 100 is provided with a second air inlet structure corresponding to the front side of the axial flow fan 200, so that the external air can flow to the front side of the axial flow fan 200 through the second air inlet structure. The shell 100 is also provided with a first air inlet structure corresponding to the outer periphery of the axial flow fan 200, so that the external air can flow to the outer periphery side of the axial flow fan 200 through the first air inlet structure. The first air inlet structure and the second air inlet structure can inlet air at the same time, thereby further improving the air supply efficiency of the axial flow fan 200.

[0060] In some embodiments, as shown in Figure 9 The surrounding plate 130 is provided with a first air inlet 150, and the first air inlet 150 forms a first air inlet structure. The annular air inlet portion 142 is provided with a second air inlet 160, and the second air inlet 160 forms a second air inlet structure. That is, when the axial flow fan 200 is running, the first air inlet 150 and the second air inlet 160 inlet air at the same time, which not only improves the air supply efficiency of the axial flow fan 200, but also has a simple structure and is easy to manufacture.

[0061] In some embodiments, as shown in Figure 10 and Figure 11As shown, the housing 100 has a third air inlet 170 extending in the axial direction of the air guide ring 300, that is, the third air inlet 170 is a long hole extending in the front-rear direction. The third air inlet 170 includes a first section 171 and a second section 172 connected in sequence in the axial direction of the air guide ring 300. The first section 171 is arranged on the coaming 130, and the first section 171 forms a first air inlet structure. The second section 172 is arranged on the annular air inlet portion 142, and the second section 172 forms a second air inlet structure. That is, the first section 171 of the third air inlet 170 is arranged on the coaming 130, the second section 172 of the third air inlet 170 is arranged on the annular air inlet portion 142, and the first section 171 and the second section 172 are in communication. Thus, the air inlet area of the housing 100 is further increased, and the air supply efficiency of the axial flow fan 200 is improved.

[0062] In some embodiments, as Figure 9 shown, the outlet end 321 of the air blocking section 320 is connected to the inner wall of the air outlet air duct 110, and the outer peripheral contour of the outlet end 321 of the air blocking section 320 is adapted to the inner wall of the air outlet air duct 110. That is, the outer peripheral contour of the outlet end 321 of the air blocking section 320 can be fitted to the inner wall of the air outlet air duct 110, so that the air blocking section 320 can completely block the backflow of air, thereby further improving the air supply efficiency of the axial flow fan 200.

[0063] For example, the contour of the inner wall of the air outlet air duct 110 is circular, the outer peripheral contour of the outlet end 321 of the air blocking section 320 is also circular, and the size of the contour of the inner wall of the air outlet air duct 110 is substantially the same as the size of the outer peripheral contour of the outlet end 321 of the air blocking section 320.

[0064] For another example, the contour of the inner wall of the air outlet air duct 110 is rectangular, the outer peripheral contour of the outlet end 321 of the air blocking section 320 is also rectangular, and the width and length dimensions of the contour of the inner wall of the air outlet air duct 110 are substantially the same as the width and length dimensions of the outer peripheral contour of the outlet end 321 of the air blocking section 320.

[0065] Specifically, as Figure 2 and Figure 4 shown, the inner wall of the air outlet air duct 110 is provided with an annular protruding portion 120, and the outlet end 321 of the air blocking section 320 has an annular folded edge 330 extending outward, and the annular folded edge 330 is connected to the annular protruding portion 120. Thus, by the cooperation of the annular protruding portion 120 and the annular folded edge 330, there is no gap between the inner wall of the air outlet air duct 110 and the air blocking section 320 for the backflow of air, so that the air blocking section 320 can completely block the backflow of air, thereby further improving the air supply efficiency of the axial flow fan 200.

[0066] Further, as Figure 2 and Figure 4As shown, the heat exchanger 400 is arranged in the annular protrusion 120, and the outer circumferential surface of the heat exchanger 400 is completely attached to the inner wall surface of the annular protrusion 120. Thus, the air flow blown out by the wind blocking section 320 passes through the heat exchanger 400 completely, and therefore the heat exchange efficiency of the heat exchanger 400 is greatly improved.

[0067] In other embodiments, the heat exchanger 400 is arranged in the air outlet air duct 110 and located at the downstream side of the wind blocking section 320, so that the heat exchanger 400 exchanges heat with the air flow; the outlet end 321 of the wind blocking section 320 is directly in contact with the edge of the heat exchanger 400. That is, the wind blocking section 320 is directly covered on the front surface of the heat exchanger 400, and the outer circumferential contour of the outlet end 321 of the wind blocking section 320 is adapted to the edge of the heat exchanger 400, so that the air flow blown out by the wind blocking section 320 passes through the heat exchanger 400 completely, and therefore the heat exchange efficiency of the heat exchanger 400 is greatly improved.

[0068] In some embodiments, as shown, Figure 8 As shown, the fan assembly further comprises at least one air guide grille 500, which is located at the air inlet side and / or the air outlet side of the axial flow fan 200, and is connected with the air guide ring 300. That is, when the fan assembly comprises one air guide grille 500, one air guide grille 500 is arranged at the air inlet side or the air outlet side of the axial flow fan 200. When the fan assembly comprises two air guide grilles 500, one air guide grille 500 is arranged at the air inlet side of the axial flow fan 200, and the other air guide grille 500 is arranged at the air outlet side of the axial flow fan 200.

[0069] It can be understood that, during the operation of the axial flow fan, the air flow distribution at the air inlet side or the air outlet side of the axial flow fan may not be uniform due to the influence of the centrifugal force and frictional resistance generated by the rotation of the blades of the axial flow fan. The air guide grilles 500 arranged at the air inlet side and / or the air outlet side of the axial flow fan 200 can improve the distribution of the air flow, and are conducive to improving the air supply efficiency of the axial flow fan.

[0070] Specifically, the air guide grille 500 comprises a plurality of annular air guide strips arranged concentrically, and the plurality of air guide strips are arranged at intervals in the radial direction of the air guide grille 500. The air guide grille 500 further comprises a plurality of straight air guide strips arranged at intervals in the axial direction of the air guide grille 500.

[0071] At this point, those skilled in the art should recognize that, although a plurality of exemplary embodiments of the present application have been shown and described in detail herein, many other variations or modifications can be directly determined or deduced from the disclosure of the present application in accordance with the principles of the present application without departing from the spirit and scope of the present application. Therefore, the scope of the present application should be understood and recognized as covering all these other variations or modifications.

Claims

1. An air conditioner hanging machine, characterized by, The air conditioner comprises a casing and at least one fan assembly; the fan assembly is arranged in the casing; the fan assembly comprises: an axial fan configured to form an airflow into and out of the casing; a wind guide ring having a wind guide section and a wind blocking section; at least part of the axial fan is arranged in the wind guide section, and the wind blocking section is flared, and the inlet end of the wind blocking section is connected to the outlet end of the wind guide section or to the peripheral wall of the wind guide section.

2. The air conditioner according to claim 1, wherein the casing further has an air outlet duct, and the outlet end of the wind blocking section is connected to the inner wall of the air outlet duct, and the outer peripheral contour of the outlet end of the wind blocking section is adapted to the inner wall of the air outlet duct.

3. The air conditioner according to claim 2, wherein the inner wall of the air outlet duct is provided with an annular protrusion, and the outlet end of the wind blocking section has an annular flange extending outward, and the annular flange is connected to the annular protrusion.

4. The ceiling-suspended air conditioner according to claim 2, wherein Further comprising: a heat exchanger arranged in the air outlet duct and located on the downstream side of the wind blocking section, so that the heat exchanger exchanges heat with the airflow; and the outlet end of the wind blocking section directly contacts the edge of the heat exchanger.

5. The air conditioner according to claim 1, wherein the wind guide section is cylindrical, and the front end of the fan blade of the axial fan is located in the wind guide section.

6. The air conditioner according to claim 1, wherein the inner wall of the wind blocking section comprises a plurality of guide inclined surfaces, and the plurality of guide inclined surfaces are sequentially connected in the circumferential direction of the axial fan; and each guide inclined surface is arranged obliquely relative to the axial direction of the wind guide ring.

7. The air conditioner according to claim 1, wherein part of the axial fan is located on the upstream side of the wind guide ring; and the ratio of the size of the part of the axial fan in the axial direction of the wind guide ring to the overall size of the axial fan in the axial direction of the wind guide ring is 0.2-0.

6.

8. The air conditioner according to claim 1, wherein the casing comprises a surrounding plate and a back plate, and the back plate is connected to the surrounding plate; the surrounding plate surrounds the outside of the fan assembly, and the surrounding plate is provided with at least one first air inlet structure corresponding to the axial fan in the radial direction of the wind guide ring; the back plate is located on the upstream side of the axial fan, and the back plate comprises a wall-adjoining portion and an annular air inlet portion, and the wall-adjoining portion and the annular air inlet portion are connected, and the wall-adjoining portion is away from the fan assembly relative to the annular air inlet portion; and the annular air inlet portion is provided with at least one second air inlet structure, and the annular air inlet portion is arranged obliquely relative to the wall-adjoining portion.

9. The air conditioner according to claim 8, wherein the surrounding plate is provided with a first air inlet opening, and the first air inlet opening forms the first air inlet structure; and the annular air inlet portion is provided with a second air inlet opening, and the second air inlet opening forms the second air inlet structure.

10. The air conditioner according to claim 8, wherein The shell has a third air inlet, which extends in the axial direction of the air guide ring; the third air inlet comprises a first section and a second section connected in sequence in the axial direction of the air guide ring; The first section is arranged on the coaming, and the first section forms the first air inlet structure; the second section is arranged on the annular air inlet part, and the second section forms the second air inlet structure.

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