Air conditioner

Abstract

The embodiment of the utility model provides an air conditioner which is provided with an air duct, an air outlet and a conical flow dividing piece, the conical flow dividing piece is arranged in the air duct, the conical flow dividing piece and the air outlet are arranged in a spaced mode, the top of the conical flow dividing piece is arranged back to the air outlet, and the bottom of the conical flow dividing piece is arranged towards the air outlet; the conical flow dividing piece is configured to divide airflow of the air channel, and the divided airflow flows out of different areas of the air outlet in different directions.

Description

Technical Field

[0001] This application relates to the technical field of air conditioners, and particularly relates to an air conditioner. Background Art

[0002] In the related art, the air outlet mode of the air conditioner is relatively single and cannot well meet the user's usage needs. Utility Model Content

[0003] The embodiments of this application provide an air conditioner that can adjust the air outlet mode more flexibly and well meet the user's usage needs.

[0004] The air conditioner provided by the embodiments of this application is provided with an air duct, an air outlet, and a conical flow divider. The conical flow divider is arranged in the air duct and is spaced from the air outlet. The top of the conical flow divider faces away from the air outlet, and the bottom of the conical flow divider faces the air outlet; the conical flow divider is configured to divide the air flow in the air duct, and the divided air flows out from different areas of the air outlet along different directions respectively.

[0005] In some embodiments, the air conditioner includes a plurality of air guide plates. The plurality of air guide plates are sequentially arranged at intervals along the width direction of the air outlet. The air guide plates can rotatably open or close the corresponding areas of the air outlet; when the plurality of air guide plates cover the air outlet, the plurality of air guide plates and the conical flow divider are arranged at intervals in the extending direction of the air duct, and adjacent air guide plates are connected to each other.

[0006] In some embodiments, the conical flow divider has a first flow dividing surface, the air duct has a first side wall facing the first flow dividing surface, and the plurality of air guide plates include a first air guide plate arranged close to the first flow dividing surface; when the first air guide plate is opened to a first angle, the end of the first air guide plate and one end of the first flow dividing surface close to the air outlet are smoothly abutted to form a first air outlet channel between the first air guide plate, the first flow dividing surface, and the first side wall. The first air outlet channel communicates with the area of the air outlet close to the first side wall.

[0007] In some embodiments, the conical diverter has a second diverter surface disposed opposite to the first diverter surface, the air duct has a second side wall disposed toward the second diverter surface, the plurality of air guide plates includes a second air guide plate disposed close to the second diverter surface, and the first air guide plate and the second air guide plate are located on opposite sides of the conical diverter; when the second air guide plate is opened to a second angle, an end of the second air guide plate and an end of the second diverter surface close to the air outlet are smoothly abutted to form a second air outlet passage between the second air guide plate, the second diverter surface and the second side wall, and the second air outlet passage communicates with a region of the air outlet close to the second side wall.

[0008] In some embodiments, the plurality of air guide plates includes a plurality of third air guide plates, the plurality of third air guide plates are sequentially disposed between the second air guide plate and the second side wall, and the third air guide plate and the second air guide plate are parallel and rotate synchronously.

[0009] In some embodiments, when the second air guide plate and the plurality of third air guide plates rotate to a third angle, the second air guide plate is separated from the conical diverter to form a third air outlet passage between the second air guide plate and the second diverter surface, and the third air outlet passage communicates with a region of the air outlet in front of the conical diverter.

[0010] In some embodiments, the air conditioner includes two driving members, one of the driving members is configured to drive the first air guide plate to rotate, and the other driving member is configured to drive the second air guide plate to rotate.

[0011] In some embodiments, the plurality of air guide plates includes a plurality of fourth air guide plates, the plurality of fourth air guide plates are sequentially disposed between the first air guide plate and the first side wall, and the fourth air guide plate and the first air guide plate are parallel and rotate synchronously.

[0012] In some embodiments, when the first air guide plate and the plurality of fourth air guide plates rotate to a fourth angle, the first air guide plate and the fourth air guide plate are parallel; the first air guide plate is separated from the conical diverter to form a fourth air outlet passage between the first air guide plate and the first diverter surface, and the fourth air outlet passage communicates with a region of the air outlet in front of the conical diverter.

[0013] In some embodiments, the air duct has a tail section flow passage connecting the air outlet, and a flow cross-section of the tail section flow passage gradually increases along the gas flow direction of the air duct.

[0014] In some embodiments, the air duct has a first side wall and a second side wall which are oppositely arranged, the air duct gradually deflects along the direction from the second side wall approaching the first side wall, and the distance between the conical shunt member and the first side wall is less than the distance between the conical shunt member and the second side wall.

[0015] In the embodiments of the present application, by arranging a conical shunt member at a distance from the air outlet in the air duct, the conical shunt member arranged in the air duct can be used for shunting, so that the air flow in the air duct is shunted and flows out from different areas of the air outlet along different directions. Among them, part of the air flow flows out from the side area of the air outlet to achieve a lateral surrounding air outlet effect, and the other part of the air flow converges again in the middle area of the air outlet after being shunted and decelerated, and then forms a soft middle air outlet towards the front in the middle area to achieve a soft air outlet effect in the front direction; thus, the air conditioner can control the air outlet directions and air outlet effects of different areas in the air outlet to meet the user's usage needs. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained according to these drawings.

[0017] Figure 1 is a cross-sectional structure diagram of the air conditioner in the first air outlet state provided by some embodiments of the present application;

[0018] Figure 2 is a cross-sectional structure diagram of the air conditioner in the second air outlet state provided by some embodiments of the present application;

[0019] Figure 3 is a partial cross-sectional structure diagram of the air conditioner in the third air outlet state provided by some embodiments of the present application.

[0020] Main Component Symbol Description:

[0021] 10 - air duct, 11 - first side wall, 12 - second side wall, 20 - air outlet, 30 - conical shunt member, 31 - first shunt surface, 32 - second shunt surface, 40 - air deflector, 401 - first air deflector, 402 - second air deflector, 403 - third air deflector, 404 - fourth air deflector, 50 - air inlet. Detailed Embodiments

[0022] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0024] "A and / or B" includes the following three combinations: only A, only B, and the combination of A and B.

[0025] The use of "suitable for" or "configured to" in the present application means open and inclusive language, which does not exclude devices that are suitable for or configured to perform additional tasks or steps. In addition, the use of "based on" means open and inclusive, because a process, step, calculation, or other action "based on" one or more of the described conditions or values can, in practice, be based on additional conditions or values beyond the described ones.

[0026] In the present application, the term "exemplary" is used to mean "serving as an example, illustration, or explanation". Any embodiment described as "exemplary" in the present application is not necessarily to be construed as more preferred or more advantageous than other embodiments. In order for any person skilled in the art to implement and use the present application, the following description is given. In the following description, details are set forth for the purpose of explanation. It should be understood that those of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid unnecessary details from obscuring the description of the present application. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope that conforms to the principles and features disclosed in the present application.

[0027] As Figures 1 to 3 shown, an embodiment of the present application provides an air conditioner, which can adjust the air outlet mode more flexibly and better meet the user's usage needs. Here, the type of the air conditioner can be determined according to actual needs, and types such as a cabinet air conditioner, a wall-mounted air conditioner, a window air conditioner, etc. can be adopted. The embodiments of the present application do not limit this. Exemplarily, the air conditioner can be a cabinet air conditioner.

[0028] The air conditioner is provided with an air duct 10, an air outlet 20 and a conical flow divider 30. The conical flow divider 30 is arranged in the air duct 10 and is spaced from the air outlet 20. The top of the conical flow divider 30 is arranged facing away from the air outlet 20, while the bottom of the conical flow divider 30 is arranged facing the air outlet 20. The conical flow divider 30 is configured to divide the air flow in the air duct 10, and the divided air flows out from different regions of the air outlet 20 along different directions respectively.

[0029] Here, a part of the air flow divided by the conical flow divider 30 can flow out from the side region of the air outlet 20, and this part of the air flow gradually flows towards the obliquely front of the air outlet 20 to achieve the effect of lateral surrounding air outlet; and another part of the air flow divided by the conical flow divider 30 can flow around the conical flow divider 30 and then flow towards the middle region of the air outlet 20, and then re-converge in the middle region to form a soft middle air outlet and flow towards the directly front of the air outlet 20. The middle air outlet is softer after being divided by the conical flow divider 30 and the speed is reduced, and the effect of soft air outlet in the directly front can be achieved.

[0030] Compared with the related art, the air conditioner provided by the embodiment of the present application can use the conical flow divider 30 arranged in the air duct 10 to divide the air flow, so that the air flow in the air duct 10 is divided and flows out from different regions of the air outlet 20 along different directions. A part of the air flow flows out from the side region of the air outlet 20 to achieve the effect of lateral surrounding air outlet, and another part of the air flow re-converges in the middle region of the air outlet 20 after being divided and decelerated, and then forms a soft middle air outlet towards the directly front in the middle region to achieve the effect of soft air outlet in the directly front; thus, the air conditioner can control the air outlet direction and air outlet effect of different regions in the air outlet 20 to meet the user's usage needs.

[0031] In some embodiments, the air conditioner may include a plurality of air guide plates 40. The plurality of air guide plates 40 are sequentially arranged at intervals along the width direction of the air outlet 20, and the air guide plates 40 can be rotatably opened or closed to correspond to areas of the air outlet 20. When the plurality of air guide plates 40 cover the air outlet 20, the plurality of air guide plates 40 and the conical flow divider 30 are arranged at intervals in the front-rear direction along the extension direction of the air duct 10, and adjacent air guide plates 40 are connected to each other; thus, when the air outlet 20 is closed, the conical flow divider 30 is blocked by the plurality of air guide plates 40 covering the air outlet 20. By providing a plurality of air guide plates 40 at the air outlet 20, the air outlet direction and the air volume of different areas in the air outlet 20 can be rotatably changed by the plurality of air guide plates 40, so that the air outlet mode can be adjusted more flexibly, and the user's usage needs can be better met.

[0032] In some examples, the conical flow divider 30 may have a first flow dividing surface 31, the air duct 10 has a first side wall 11 arranged facing the first flow dividing surface 31, and the plurality of air guide plates 40 include a first air guide plate 401 arranged close to the first flow dividing surface 31. When the first air guide plate 401 is opened to a first angle, the end of the first air guide plate 401 and one end of the first flow dividing surface 31 close to the air outlet 20 are smoothly abutted, so as to form a first air outlet channel between the first air guide plate 401, the first flow dividing surface 31 and the first side wall 11, and the first air outlet channel communicates with the area of the air outlet 20 close to the first side wall 11. Thus, the air flow formed by the flow division through the first flow dividing surface 31 can flow along the first air outlet channel, and then blow out from the area of the air outlet 20 close to the first side wall 11. By the above arrangement, the first air guide plate 401 and the first flow dividing surface 31 can be used to guide the divided gas, so that the air flow flows out from the side area on one side of the air outlet 20 to achieve the lateral surrounding air outlet effect.

[0033] Exemplarily, the conical flow splitter 30 may have a second flow splitting surface 32 disposed opposite to the first flow splitting surface 31, and the air duct 10 has a second side wall 12 disposed toward the second flow splitting surface 32; among the plurality of air guiding plates 40, there is a second air guiding plate 402 disposed close to the second flow splitting surface 32, and the first air guiding plate 401 and the second air guiding plate 402 are located on opposite sides of the conical flow splitter 30. When the second air guiding plate 402 is opened to the second angle, the end of the second air guiding plate 402 smoothly abuts against one end of the second flow splitting surface 32 close to the air outlet 20, so as to form a second air outlet channel between the second air guiding plate 402, the second flow splitting surface 32 and the second side wall 12, and the second air outlet channel communicates with the area of the air outlet 20 close to the second side wall 12. In this way, the airflow formed by splitting through the second flow splitting surface 32 can flow along the second air outlet channel and then exit from the area of the air outlet 20 close to the second side wall 12. Through the above arrangement, the second air guiding plate 402 and the second flow splitting surface 32 can be used to guide the split gas, so that the airflow flows out from the other side part area of the air outlet 20 to achieve the lateral surrounding air outlet effect. Combining the combined action of the first air guiding plate 401 and the second air guiding plate 402, when the first air guiding plate 401 is opened to the first angle and the second air guiding plate 402 is opened to the second angle, air can be discharged from the side part areas on both sides of the air outlet 20 respectively, so as to achieve the lateral surrounding air outlet effect on both sides and avoid the discomfort caused by direct blowing. Here, the absolute values of the first angle and the second angle may be the same or different, and the embodiments of the present application do not limit this.

[0034] Exemplarily, the plurality of air guiding plates 40 may include a number of third air guiding plates 403. The number of third air guiding plates 403 are sequentially disposed between the second air guiding plate 402 and the second side wall 12, and the third air guiding plates 403 are parallel to the second air guiding plate 402 and rotate synchronously. When the second air guiding plate 402 is opened to the second angle, the number of third air guiding plates 403 are sequentially and spacedly disposed in the second air outlet channel, and the third air guiding plates 403 are also opened to the second angle; in this way, the second air outlet channel can be further divided into a number of sub-air outlet channels to further split the air flow on this side of the air outlet to achieve a soft air outlet. The number of the third air guiding plates 403 can be determined according to actual needs and can be one or more, and the embodiments of the present application do not limit this.

[0035] Exemplarily, when the second air deflector 402 and several third air deflectors 403 are rotated to the third angle, the second air deflector 402 is separated from the conical flow splitter 30 to form a third air outlet channel between the second air deflector 402 and the second flow splitting surface 32. The third air outlet channel communicates with the area of the air outlet 20 in front of the conical flow splitter 30, and the area of the air outlet 20 in front of the conical flow splitter 30 may be the middle area of the air outlet 20. Here, a first side air outlet channel parallel to the third air outlet channel is also formed between the second air deflector 402 and the third air deflector 403; when there are multiple third air deflectors 403, a first side air outlet channel parallel to the third air outlet channel is also formed between two adjacent third air deflectors 403. In this way, in the airflow formed by splitting through the second flow splitting surface 32, part of the airflow can flow along the third air outlet channel to the middle area of the air outlet 20, and then gently blow out towards the front in the middle area to achieve the effect of gentle front blowing; while another part of the airflow can gradually approach the middle area of the air outlet 20 along the second side air outlet channel, and then converge with the aforementioned gentle blowing to further form a gentle air flow blowing towards the front of the middle area.

[0036] Exemplarily, the plurality of air deflectors 40 includes several fourth air deflectors 404, and the several fourth air deflectors 404 are sequentially arranged between the first air deflector 401 and the first side wall 11. The fourth air deflectors 404 are arranged parallel to the first air deflector 401 and rotate synchronously. When the first air deflector 401 is opened to the first angle, the several fourth air deflectors 404 are sequentially arranged at intervals in the first air outlet channel, and the fourth air deflectors 404 are also opened to the first angle; in this way, the first air outlet channel can be further divided into several sub-air outlet channels to further split the air flow on this side to achieve gentle air blowing. The number of the fourth air deflectors 404 can be determined according to actual needs, and can be one or more, and the embodiments of the present application do not limit this.

[0037] Exemplarily, when the first air deflector 401 and several fourth air deflectors 404 are rotated to the fourth angle, the first air deflector 401 is separated from the conical flow splitter 30, so as to form a fourth air outlet channel between the first air deflector 401 and the first flow splitting surface 31, and the fourth air outlet channel communicates with the area in front of the conical flow splitter 30 in the air outlet 20. Here, a second side air outlet channel parallel to the fourth air outlet channel is also formed between the first air deflector 401 and the fourth air deflectors 404; when there are multiple fourth air deflectors 404, a second side air outlet channel parallel to the fourth air outlet channel is also formed between two adjacent fourth air deflectors 404. In this way, among the airflows formed by splitting through the first flow splitting surface 31, some of the airflows can flow along the fourth air outlet channel to the middle area of the air outlet 20, and then gently blow out towards the front in the middle area, achieving a gentle blowing effect in the front; while another part of the airflows can gradually approach the middle area of the air outlet 20 along the second side air outlet channel, and then converge with the aforementioned gentle blowing, further forming a gentle blowing towards the front in the middle area.

[0038] Exemplarily, when the second air deflector 402 and several third air deflectors 403 are rotated to the third angle, and the first air deflector 401 and several fourth air deflectors 404 are rotated to the fourth angle, the airflows from the third air outlet channel / the first side air outlet channel and the airflows from the fourth air outlet channel / the second side air outlet channel can converge in the middle area of the air outlet 20 and directly in front of it, forming a gentle blowing towards the front in the middle area, which can not only meet the air volume requirements for front blowing, but also achieve a better gentle air effect.

[0039] Exemplarily, the air conditioner may include two driving members, one of which is configured to drive the first air deflector 401 to rotate, and the other is configured to drive the second air deflector 402 to rotate. The type of the driving member can be determined according to actual needs, and types such as a rotary motor, a hydraulic motor, etc. can be adopted, which are not limited in the embodiments of the present application. Exemplarily, one of the driving members can drive the first air deflector 401 and the above-mentioned several fourth air deflectors 404 to rotate synchronously, and the other driving member can drive the second air deflector 402 and the above-mentioned several third air deflectors 403 to rotate synchronously.

[0040] In some embodiments, the air duct 10 has a tail section flow channel connecting the air outlet 20, and the through-flow cross-section of the tail section flow channel gradually increases along the gas flow direction of the air duct 10. By setting the tail section flow channel to a gradually expanding structure, the flow velocity of the airflow in the tail section flow channel can be reduced, thereby reducing the airflow impact and the resulting impact noise, and achieving a relatively gentle air outlet effect. In some embodiments, the air conditioner may further be provided with an air inlet 50, and the air inlet 50 communicates with the air outlet 20 through the air duct 10.

[0041] In some embodiments, the air duct 10 can be gradually deflected along the direction approaching the first side wall 11 from the second side wall 12, so that the air duct 10 gradually biases towards the side of the first side wall 11 away from the second side wall 12. By the above arrangement, the air duct 10 can be in a curved shape extending along a curve, thereby increasing the extension length of the air duct 10 in a limited space. In the above structure, the air volume in the air duct 10 is relatively concentrated on the side close to the first side wall 11. The air volume in the area close to the first side wall 11 is large, while the air volume in the area close to the second side wall 12 is small, making the air outlet of the air duct 10 have an obvious directivity.

[0042] Here, the position of the conical shunt member 30 in the air duct 10 can be set so that the distance between the conical shunt member 30 and the first side wall 11 is less than the distance between the conical shunt member 30 and the second side wall 12. On the one hand, the conical shunt member 30 is arranged relatively close to the first side wall 11, and the air volume concentrated in the area close to the first side wall 11 can be shunted to the area close to the second side wall 12, so that the air outlet volume in the area close to the first side wall 11 and the air outlet volume in the area close to the second side wall 12 are relatively close, avoiding strong directivity of the air outlet and achieving a soft and uniform air outlet effect; on the other hand, the flow-through area between the conical shunt member 30 and the first side wall 11 is narrow, which can limit and reduce the air volume flowing through this flow-through area, while the flow-through area between the conical shunt member 30 and the second side wall 12 is wide, which can increase the air volume flowing through this flow-through area, further increasing the consistency of the air outlet volume in different areas and better achieving a soft and uniform air outlet effect.

[0043] The air conditioner provided by the embodiments of the present application has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An air conditioner, characterized in that: An air duct, an air outlet and a conical diverter are provided, wherein the conical diverter is arranged in the air duct and at a distance from the air outlet, the top of the conical diverter is arranged away from the air outlet, and the bottom of the conical diverter is arranged toward the air outlet; the conical diverter is configured to divert the airflow of the air duct, and the diverted airflow flows out from different areas of the air outlet in different directions.

2. The air conditioner according to claim 1, characterized in that: The air conditioner includes a plurality of air guide plates, which are arranged at intervals in sequence at the air outlet along the width direction of the air outlet, and the air guide plates can be rotatably opened or closed corresponding areas of the air outlet; when the plurality of air guide plates cover the air outlet, the plurality of air guide plates and the conical diverter are arranged at intervals front and back along the extension direction of the air duct, and adjacent air guide plates are connected to each other.

3. The air conditioner according to claim 2, characterized in that: The conical diverter has a first diverter surface, the air duct has a first side wall arranged toward the first diverter surface, and the multiple air guide plates include a first air guide plate arranged close to the first diverter surface; when the first air guide plate is opened to a first angle, the end of the first air guide plate and an end of the first diverter surface close to the air outlet are smoothly abutted to form a first air outlet channel between the first air guide plate, the first diverter surface and the first side wall, and the first air outlet channel is connected to an area of ​​the air outlet close to the first side wall.

4. The air conditioner according to claim 3, characterized in that: The conical diverter has a second diverter surface arranged opposite to the first diverter surface, the air duct has a second side wall arranged toward the second diverter surface, the multiple air guide plates include a second air guide plate arranged close to the second diverter surface, the first air guide plate and the second air guide plate are located on opposite sides of the conical diverter; when the second air guide plate is opened to a second angle, the end of the second air guide plate and the end of the second diverter surface close to the air outlet are smoothly abutted to form a second air outlet channel between the second air guide plate, the second diverter surface and the second side wall, and the second air outlet channel is connected to the area of ​​the air outlet close to the second side wall.

5. The air conditioner according to claim 4, characterized in that: The plurality of wind guide plates include a plurality of third wind guide plates, and the plurality of third wind guide plates are sequentially arranged between the second wind guide plate and the second side wall. The third wind guide plates and the second wind guide plates are arranged in parallel and rotate synchronously.

6. The air conditioner according to claim 5, characterized in that: When the second air guide plate and the several third air guide plates rotate to a third angle, the second air guide plate and the conical diverter are separated to form a third air outlet channel between the second air guide plate and the second diverter surface, and the third air outlet channel is connected to the area in the air outlet located in front of the conical diverter.

7. The air conditioner according to claim 4, characterized in that: The air conditioner includes two driving members, one of which is configured to drive the first air guide plate to rotate, and the other driving member is configured to drive the second air guide plate to rotate.

8. The air conditioner according to claim 3, characterized in that: The plurality of wind guide plates include a plurality of fourth wind guide plates, and the plurality of fourth wind guide plates are sequentially arranged between the first wind guide plate and the first side wall. The fourth wind guide plates and the first wind guide plates are arranged in parallel and rotate synchronously.

9. The air conditioner according to claim 8, characterized in that: When the first air guide plate and the several fourth air guide plates are rotated to a fourth angle, the first air guide plate and the fourth air guide plates are arranged in parallel; the first air guide plate and the conical diverter are separated to form a fourth air outlet channel between the first air guide plate and the first diverter surface, and the fourth air outlet channel is connected to the area in the air outlet located in front of the conical diverter.

10. The air conditioner according to claim 1, characterized in that: The air duct has a tail section flow channel connected to the air outlet, and the flow cross-section of the tail section flow channel gradually increases along the gas flow direction of the air duct; and / or, the air duct has a first side wall and a second side wall arranged opposite to each other, and the air duct gradually deflects in a direction from the second side wall to the first side wall, and the distance between the conical diverter and the first side wall is smaller than the distance between the conical diverter and the second side wall.

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