Air outlet structure and air handling device

Abstract

The application relates to an air outlet structure and an air treatment device. The air outlet structure comprises a flow guide structure for guiding air flow and a shell arranged around the flow guide structure. A plurality of main air outlets and a plurality of secondary air outlets are formed between the shell and the flow guide structure. The plurality of main air outlets respectively spray main air flows, the plurality of secondary air outlets respectively spray secondary air flows, and the plurality of main air flows and the plurality of secondary air flows converge at a distal end. The plurality of main air outlets and the plurality of secondary air outlets are alternately arranged in a ring shape. At least one group of adjacent main air outlets and secondary air outlets are communicated through a pressure reduction channel. The air flow in the main air outlet communicated with the pressure reduction channel can flow into the corresponding secondary air outlet through the pressure reduction channel. On the one hand, most of the air flow is sprayed by the main air outlet, and on the other hand, the air flow speed of the secondary air outlet is smaller than that of the main air outlet, so that the turbulent flow phenomenon caused by the ring-shaped air outlet can be greatly reduced.

Description

Technical Field

[0001] This application relates to the field of air handling equipment, and in particular to an air outlet structure and an air handling device. Background Technology

[0002] With the improvement of living standards, air handling equipment is being used more and more widely in daily life. However, some traditional air handling equipment, with their annular air outlet structure, are prone to high turbulence in the airflow, which affects the air delivery effect. Utility Model Content

[0003] Therefore, it is necessary to provide an air outlet structure and air handling equipment that can reduce the turbulence of the airflow ejected from the air outlet structure.

[0004] On one hand, this application provides an air outlet structure for an air handling device, the air handling device including an airflow generating device for generating airflow, the air outlet structure including:

[0005] A flow-guiding structure for guiding the airflow; and

[0006] The outer casing surrounds the airflow guiding structure; multiple main air outlets and multiple secondary air outlets are formed between the outer casing and the airflow guiding structure; the multiple main air outlets respectively eject main airflow, and the multiple secondary air outlets respectively eject secondary airflow, and the multiple main airflow and the multiple secondary airflow converge at the far end; the multiple main air outlets and the multiple secondary air outlets are arranged alternately in a ring; at least one group of adjacent main air outlets and secondary air outlets are connected by a pressure reducing channel.

[0007] Optionally, the end of the pressure-reducing channel that connects to the main air outlet is located near the outer edge of the main air outlet.

[0008] Optionally, the extension length of the pressure-reducing channel is greater than the distance between the air guide structure and the housing at the main air outlet.

[0009] Optionally, the extension line of the pressure-reducing channel is a straight line; the angle between the extension direction of the pressure-reducing channel and the extension direction of the corresponding end of the main air outlet is an acute angle.

[0010] Optionally, the main air outlet has a first sidewall facing the adjacent secondary air outlet; the secondary air outlet has a second sidewall facing the adjacent secondary air outlet and a third sidewall facing the flow guide structure; the height of the third sidewall is lower than the height of the flow guide structure; the first sidewall and the second sidewall are spaced apart; the first sidewall, the second sidewall, the outer shell and the third sidewall form the pressure relief channel.

[0011] Optionally, the bottom surface of the pressure-reducing channel is coplanar with the bottom surfaces of the adjacent connected main air outlet and the secondary air outlet.

[0012] Optionally, the plurality of main air outlets include a first main air outlet and a second main air outlet; the first main air outlet and the second main air outlet are arranged opposite to each other.

[0013] Optionally, the first main air outlet is located on the top side of the second main air outlet;

[0014] The pressure-reducing channel connected to the first main air outlet is designated as the first pressure-reducing channel; the pressure-reducing channel connected to the second main air outlet is designated as the second pressure-reducing channel; the cross-sectional area of ​​the second pressure-reducing channel is larger than the cross-sectional area of ​​the first pressure-reducing channel.

[0015] On the other hand, this application also provides an air handling device, which includes the air outlet structure provided in this application.

[0016] Optionally, the air handling equipment is an air purification equipment.

[0017] In the various embodiments provided in this application, the airflow in the main air outlet, which is connected to the pressure-reducing channel, can flow to the corresponding secondary air outlet through the pressure-reducing channel. This ensures that most of the airflow is ejected from the main air outlet, while the airflow velocity at the secondary air outlet is lower than that at the main air outlet, thereby significantly reducing turbulence caused by the secondary air outlet. Furthermore, this method preserves the airflow of a complete annular air outlet, which, compared to directly cutting off part of the air outlet, further guarantees the air outlet area and increases the airflow volume.

[0018] In some embodiments provided in this application, the end of the pressure-reducing channel that connects to the main air outlet is positioned near the outer edge of the main air outlet. On the one hand, this can reduce the air pressure in the area near the outer edge of the main air outlet, improve the consistency of the flow velocity of the main airflow ejected from different positions of the main air outlet, and make the main airflow more concentrated and uniform. On the other hand, it can allow the airflow to quickly flow through the pressure-reducing channel to the secondary air outlet, ensuring that the main airflow and the secondary airflow can be ejected simultaneously, thereby improving the airflow convergence effect.

[0019] The extension length of the pressure-reducing channel is greater than the distance between the airflow guide structure and the outer casing at the main air outlet. The extended length of the pressure-reducing channel is relatively long to avoid excessive exhaust of airflow at the main air outlet, ensuring that the airflow ejected from the outlet structure is mainly ejected from the main air outlet.

[0020] The pressure-reducing channel extends in a straight line. The angle between the extension direction of the pressure-reducing channel and the extension direction of the corresponding end of the main air outlet is acute, ensuring that the extension length of the pressure-reducing channel is greater than the distance between the guide structure and the outer casing at the main air outlet. Furthermore, the acute angle between the extension direction of the pressure-reducing channel and the extension direction of the corresponding end of the main air outlet ensures that the airflow direction changes at approximately the same acute angle after reaching the pressure-reducing channel, minimizing turbulence caused by airflow deflection.

[0021] The first sidewall, the second sidewall, the outer shell, and the third sidewall form a pressure-reducing channel, eliminating the need for additional structures to accommodate the pressure-reducing channel and facilitating the miniaturization and lightweight design of the air outlet structure.

[0022] The main air outlet is located at the end of the pressure reducing channel. Under the guidance of the first and second side walls, the airflow into the pressure reducing channel flows along the channel, avoiding turbulence at the junction of the main air outlet and the pressure reducing channel, so that the airflow can flow more smoothly in the preset direction.

[0023] The pressure-reducing channel is connected to the secondary air outlet at the end of the pressure-reducing channel. After the airflow reaches the end of the pressure-reducing channel located on the third side wall, the flow direction changes under the action of the third side wall, reducing the risk of airflow turbulence at the connection point between the pressure-reducing channel and the secondary air outlet, so that the airflow can flow more smoothly from the gap between the second and third side walls to the secondary air outlet.

[0024] The bottom surface of the pressure-reducing channel is coplanar with the bottom surfaces of the adjacent main air outlet and secondary air outlet, so that the airflow from the main air outlet can flow more smoothly into the secondary air outlet.

[0025] The first main air outlet and the second main air outlet are positioned opposite each other. As a result, the main airflows ejected from the first main air outlet and the second main air outlet are also positioned opposite each other, which facilitates the convergence of the main airflows ejected from the first main air outlet and the second main air outlet at the far end.

[0026] The first main air outlet is located on top of the second main air outlet; the cross-sectional area of ​​the second pressure-reducing channel is larger than that of the first pressure-reducing channel, making the pressure reduction intensity of the second main air outlet greater than that of the first main air outlet. This makes the flow velocity of the main airflow ejected from the second main air outlet closer to that of the main airflow ejected from the first main air outlet, reducing the probability of turbulence when the airflow converges and facilitating the smooth convergence of the two main airflows. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the air outlet structure of an air handling device provided in an embodiment of this application.

[0028] Figure 2 for Figure 1 A schematic diagram of the structure shown from another perspective.

[0029] Figure 3 for Figure 2 A sectional view along line AA.

[0030] Figure 4 for Figure 3 EE-directed sectional view.

[0031] Figure 5 for Figure 4 A magnified view of N in the middle.

[0032] Figure 6 for Figure 4 A schematic diagram of the structure shown from another perspective.

[0033] Figure 7 for Figure 6 A magnified view of a portion of the image.

[0034] Explanation of reference numerals in the attached figures

[0035] 100. Air outlet structure; 101. Main air outlet; 101a. First main air outlet; 101b. Second main air outlet; 101m. First side wall; 102. Secondary air outlet; 102a. Second side wall; 102b. Third side wall; 103. Pressure reducing channel; 103a. First pressure reducing channel; 103b. Second pressure reducing channel; 110. Air guiding structure; 120. Outer shell. Detailed Implementation

[0036] To make the technical solution and beneficial effects of this application more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0037] Some traditional air handling equipment, especially in structures with annular air outlets and converging airflow, are prone to high turbulence, which causes the airflow to diffuse at a distance, affecting the airflow performance, such as the outlet distance and airflow intensity.

[0038] Based on this, researchers discovered that due to the design of the annular air outlet, the airflow discharged from the outlet is very dispersed, resulting in a lack of concentration of laminar flow and thus generating turbulence.

[0039] Based on this, researchers have proposed an air outlet structure for air handling equipment, which includes multiple main air outlets and multiple secondary air outlets, arranged in an alternating ring pattern. At least one set of adjacent main and secondary air outlets is connected via a pressure-reducing channel. Airflow in the main air outlets connected to the pressure-reducing channel can flow to the corresponding secondary air outlets through the pressure-reducing channel.

[0040] This application, through the above-mentioned method, enables the original annular air outlet to be transformed into one where the majority of the air is discharged from the main air outlet, and makes the air discharge velocity of the secondary air outlet lower than that of the main air outlet, thereby making the airflow more concentrated, reducing turbulence, and improving the air discharge effect.

[0041] In addition, this method can preserve the air outlet of an entire ring, which, compared to directly cutting off part of the air outlet, can further ensure the air outlet area and increase the air volume.

[0042] See Figures 1 to 7 This application provides an air outlet structure 100 for an air handling device, which includes an airflow generating device for generating airflow. The air outlet structure 100 includes a guide structure 110 and a housing 120. The guide structure 110 guides the airflow. The housing 120 surrounds the guide structure 110. A plurality of main air outlets 101 and a plurality of secondary air outlets 102 are formed between the housing 120 and the guide structure 110. The main air outlets 101 eject main airflow, and the secondary air outlets 102 eject secondary airflow, with the main airflow and secondary airflow converging at a distal end. The main air outlets 101 and secondary air outlets 102 are arranged alternately in a ring. At least one set of adjacent main air outlets 101 and secondary air outlets 102 are connected by a pressure-reducing channel 103.

[0043] It is understandable that the main air outlet 101 is connected to the outlet of the airflow generating device used to generate airflow. In other words, the airflow ejected from the outlet of the airflow generating device is mainly ejected through the main air outlet 101.

[0044] The air outlet structure 100 for the air handling equipment described above, which is connected to the pressure reducing channel 103, allows the airflow in the corresponding main air outlet 101 to flow through the pressure reducing channel 103 to the corresponding secondary air outlet 102. This ensures that most of the airflow is ejected from the main air outlet 101, while also making the airflow velocity in the secondary air outlet 102 lower than that in the main air outlet 101, thereby greatly reducing the turbulence caused by the secondary air outlet 102.

[0045] Additionally, it is understood that the airflow output from the air outlet structure 100 is mainly ejected through the main air outlet 101. A small portion of the gas from the main air outlet 101 flows to the secondary air outlet 102 through the pressure reducing channel 103. This application does not limit the air outlet area of ​​the main air outlet and the air outlet area of ​​the secondary air outlet. The air outlet area of ​​the main air outlet may be equal to, less than or greater than that of the secondary air outlet, and the areas between each main air outlet and between each secondary air outlet may be the same or different, which is not limited here.

[0046] Furthermore, it is understandable that the secondary airflow and the primary airflow converge at the far end. Therefore, even if some of the gas from the primary air outlet 101 flows to the secondary air outlet 102 and is ejected through the secondary air outlet 102, it can still converge with the primary airflow ejected from the primary air outlet 101.

[0047] See Figures 4 to 7 In this embodiment, the end of the pressure-reducing channel 103 that connects to the main air outlet 101 is positioned near the outer edge of the main air outlet 101. It can be understood that the outer edge of the main air outlet 101 refers to the edge of the main air outlet 101 closest to the outer casing 120. Researchers have discovered that the air pressure near the outer edge of the main air outlet 101 is often higher than the air pressure near the inner edge. Positioning the end of the pressure-reducing channel 103 that connects to the main air outlet 101 near the outer edge of the main air outlet 101 serves two purposes: firstly, it reduces the air pressure near the outer edge of the main air outlet 101, improving the consistency of the main airflow velocity at different locations of the main air outlet 101, making the main airflow more concentrated and uniform; secondly, it allows the airflow to quickly pass through the pressure-reducing channel 103 to the secondary air outlet 102, ensuring that the main and secondary airflows can be ejected simultaneously, improving the airflow convergence effect.

[0048] In this embodiment, the extension length of the pressure-reducing channel 103 is greater than the distance L between the guide structure 110 and the outer casing 120 at the main air outlet 101. The extension length of the pressure-reducing channel 103 is relatively long to avoid excessive discharge of airflow at the main air outlet 101, ensuring that the airflow ejected from the air outlet structure 100 is mainly ejected from the main air outlet 101. Figure 5 In this embodiment, the direction of airflow from the main air outlet 101 to the secondary air outlet 102 via the pressure reducing channel 103 is indicated by arrows.

[0049] Specifically, in this embodiment, the extension line of the pressure-reducing channel 103 is a straight line. The angle β between the extension direction of the pressure-reducing channel 103 and the extension direction of the corresponding end of the main air outlet 101 is an acute angle, so that the extension length of the pressure-reducing channel 103 is greater than the distance between the guide structure 110 and the outer casing 120 at the main air outlet 101. It can be understood that the extension direction of the corresponding end of the main air outlet 101 refers to the tangential direction of the extension line of the main air outlet 101 at the corresponding end position of the main air outlet 101, such as... Figure 5 As shown.

[0050] In addition, the angle β between the extension direction of the pressure reducing channel 103 and the extension direction of the corresponding end of the main air outlet 101 is an acute angle, so that after the airflow in the main air outlet 101 flows to the pressure reducing channel 103, the angle at which the airflow direction changes is also approximately β, that is, the angle at which the airflow direction changes is also an acute angle. The angle at which the airflow direction changes is small, reducing the flow turbulence caused by the airflow turning.

[0051] It is understood that in some other embodiments, the extension line of the decompression channel is not limited to a straight line, but may also be bent, such as a curve or a broken line, or other regular or irregular shapes.

[0052] In this embodiment, the main air outlet 101 has a first sidewall 101m facing the adjacent secondary air outlet 102. The secondary air outlet 102 has a second sidewall 102a facing the adjacent secondary air outlet 102 and a third sidewall 102b facing the flow guide structure. The height of the third sidewall 102b is lower than the height of the flow guide structure 110. The first sidewall 101m and the second sidewall 102a are spaced apart. The first sidewall 101m, the second sidewall 102a, the outer shell 120, and the third sidewall 102b form a pressure-reducing channel 103, eliminating the need for additional structures to accommodate the pressure-reducing channel 103, thus facilitating the miniaturization and lightweight design of the air outlet structure 100.

[0053] More specifically, in this embodiment, the first sidewall 101m is spaced apart from the outer casing 120 so that the airflow in the main air outlet 101 can flow to the pressure-reducing channel 103 through the gap between the first sidewall 101m and the outer casing 120. In other words, the position where the main air outlet 101 connects to the pressure-reducing channel 103 is located at the end of the pressure-reducing channel 103. Under the guidance of the first sidewall 101m and the second sidewall 102a, the airflow flowing into the pressure-reducing channel 103 flows along the pressure-reducing channel 103, avoiding turbulence at the junction of the main air outlet 101 and the pressure-reducing channel 103, so that the airflow can flow more smoothly in the preset direction.

[0054] In this embodiment, the second sidewall 102a and the third sidewall 102b are spaced apart so that the airflow in the pressure-reducing channel 103 can flow to the secondary air outlet 102 through the gap between the second sidewall 102a and the third sidewall 102b. In other words, the position where the pressure-reducing channel 103 connects to the secondary air outlet 102 is located at the end of the pressure-reducing channel 103. After flowing to the end of the pressure-reducing channel 103 located at the end of the third sidewall 102b, the flow direction is changed under the action of the third sidewall 102b, reducing the risk of airflow turbulence at the junction of the pressure-reducing channel 103 and the secondary air outlet 102, so that the airflow can flow more smoothly from the gap between the second sidewall 102a and the third sidewall 102b to the secondary air outlet 102.

[0055] In this embodiment, the bottom surface of the pressure-reducing channel 103 is coplanar with the bottom surfaces of the adjacent connected main air outlet 101 and secondary air outlet 102, so that the airflow from the main air outlet 101 can flow more smoothly into the secondary air outlet 102. Specifically, since the bottom surface of the pressure-reducing channel 103 is coplanar with the bottom surfaces of the adjacent connected main air outlet 101 and secondary air outlet 102, the airflow does not need to change its velocity in the direction perpendicular to the bottom surface of the pressure-reducing channel 103 during the flow from the main air outlet 101 to the secondary air outlet 102, reducing the risk of airflow turbulence and allowing the airflow to flow more smoothly into the secondary air outlet 102.

[0056] See Figure 3 , Figure 4 and Figure 6 In this embodiment, multiple main air outlets 101 include a first main air outlet 101a and a second main air outlet 101b. The first main air outlet 101a and the second main air outlet 101b are arranged opposite to each other. Thus, the main airflows ejected from the first main air outlet 101a and the second main air outlet 101b are also arranged opposite to each other, which facilitates the convergence of the main airflows ejected from the first main air outlet 101a and the second main air outlet 101b at the far end.

[0057] In this embodiment, the first main air outlet 101a is located on the top side of the second main air outlet 101b; the pressure reducing channel 103 connected to the first main air outlet 101a is designated as the first pressure reducing channel 103a; the pressure reducing channel 103 connected to the second main air outlet 101b is designated as the second pressure reducing channel 103b; the cross-sectional area of ​​the second pressure reducing channel 103b is larger than the cross-sectional area of ​​the first pressure reducing channel 103a.

[0058] Researchers discovered that the air pressure in the second main air outlet 101b, located on the bottom side, is typically higher than that in the first main air outlet 101a. The cross-sectional area of ​​the second pressure-reducing channel 103b is larger than that of the first pressure-reducing channel 103a, resulting in a greater pressure reduction intensity at the second main air outlet 101b than at the first main air outlet 101a. This makes the velocity of the main airflow ejected from the second main air outlet 101b closer to that of the main airflow ejected from the first main air outlet 101a, reducing the probability of turbulence during convergence and facilitating the smooth convergence of the two main airflows.

[0059] It should be noted that the first main air outlet 101a is located on top of the second main air outlet 101b. This means that in the usage state, the height of the first main air outlet 101a is higher than the height of the second main air outlet 101b in the vertical direction. It does not necessarily mean that the first main air outlet 101a is directly above the second main air outlet 101b. Specifically, in this embodiment, the arrangement direction of the first main air outlet 101a and the second main air outlet 101b is along the first direction aa, and the angle between the first direction aa and the vertical direction of the air outlet structure 100 in the usage state is greater than zero.

[0060] Understandably, in other embodiments, the arrangement of the two main air outlets 101 is not limited to... Figure 3 The arrangement shown can also be arranged in other directions. For example, in some other embodiments, the two main air outlets can also be arranged laterally, and the two secondary air outlets 102 can be arranged vertically, which is not limited here.

[0061] In this embodiment, a pressure-reducing channel 103 is provided between any pair of adjacent main air outlets 101 and secondary air outlets 102. In other words, a pressure-reducing channel 103 is provided at each end of the main air outlet 101 to avoid a large pressure difference between the two ends of the main air outlet 101, making the air pressure distribution within the main air outlet 101 more uniform, and consequently, the flow velocity of the airflow ejected from the main air outlet 101 more uniform. It is understood that in some other embodiments, a pressure-reducing channel may be provided between only some adjacent main air outlets and secondary air outlets. In other words, there may be cases where there is no pressure-reducing channel between some main air outlets and secondary air outlets.

[0062] In this embodiment, the multiple main air outlets 101 and the multiple secondary air outlets 102 are arranged alternately in a circular pattern. It is understood that in other embodiments, the multiple main air outlets and the multiple secondary air outlets may also be arranged in other circular shapes, such as square, rhombus, rectangle, etc.

[0063] In this embodiment, the outer shell 120 has a double-layer structure design. It is understood that in other embodiments, the outer shell may also have a single-layer structure design or multiple layers, which can be set as needed and is not limited here.

[0064] Optionally, in other embodiments, the cross-sectional area of ​​the pressure-reducing channel is adjustable to adjust the cross-sectional area as needed, i.e., to adjust the pressure reduction intensity of the corresponding main air outlet. Specifically, for example, when the airflow generated by the airflow generator of the air handling equipment is at a high speed, it is necessary to increase the cross-sectional area of ​​the pressure-reducing channel. Furthermore, in some outlet structures, the main air outlet can be at least partially blocked; the cross-sectional area of ​​the pressure-reducing channel can be adjusted according to the degree of obstruction of the main air outlet to better adjust the air pressure at the corresponding main air outlet.

[0065] Optionally, in some other embodiments, a one-way valve is provided in the pressure reducing channel to prevent gas backflow, that is, to prevent the airflow in the pressure reducing channel or secondary air outlet downstream of the one-way valve from flowing back to the corresponding main air outlet, thereby reducing the probability of airflow turbulence in the main air outlet and secondary air outlet.

[0066] One embodiment of this application provides an air handling device, including the air outlet structure provided in this application.

[0067] In the aforementioned air handling equipment, the airflow in the main air outlet, which is connected to the pressure reducing channel, can flow to the corresponding secondary air outlet through the pressure reducing channel. On the one hand, this allows most of the airflow to be ejected from the main air outlet, and on the other hand, it makes the airflow velocity in the secondary air outlet less than that in the main air outlet, thereby greatly reducing the turbulence caused by the secondary air outlet.

[0068] In some embodiments, the air handling equipment is an air purification equipment.

[0069] It is understood that, in other embodiments, the air handling equipment is not limited to air purification equipment, but may also be a fan, air humidifier, air dehumidifier, air heater, or other equipment with multiple air handling functions.

[0070] In this application, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the purpose of simplifying the description of this application and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this application.

[0071] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" may explicitly include at least one of those features. In this application, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise explicitly specified.

[0072] In this application, unless otherwise expressly defined, the terms "installation," "connection," "linking," "fixing," "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0073] In this application, unless otherwise expressly defined, the terms "above," "on top of," "over," "above," "below," "below," "below," or "below" for "first feature over second feature" can refer to the first and second features being in direct contact, or to the first and second features being in indirect contact through an intermediate medium. Furthermore, "above," "over," and "below" for "first feature over second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature over second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0074] It should be understood that the above embodiments are exemplary and are not intended to include all possible embodiments covered by the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this application that may not be explicitly described. Therefore, the above embodiments only illustrate several embodiments of this application and do not limit the scope of protection of this patent application.

Claims

1. An air outlet structure for an air handling device, the air handling device comprising an airflow generating device for generating airflow, characterized in that, The air outlet structure includes: A flow-guiding structure for guiding the airflow; and The outer casing surrounds the airflow guiding structure; multiple main air outlets and multiple secondary air outlets are formed between the outer casing and the airflow guiding structure; the multiple main air outlets respectively eject main airflow, and the multiple secondary air outlets respectively eject secondary airflow, and the multiple main airflow and the multiple secondary airflow converge at the far end; the multiple main air outlets and the multiple secondary air outlets are arranged alternately in a ring; at least one group of adjacent main air outlets and secondary air outlets are connected by a pressure reducing channel.

2. The air outlet structure of claim 1, wherein, The end of the pressure-reducing channel that connects to the main air outlet is located near the outer edge of the main air outlet.

3. The air outlet structure of claim 1, wherein, The extension length of the pressure-reducing channel is greater than the distance between the airflow guiding structure and the outer casing at the main air outlet.

4. The air outlet structure according to claim 3, characterized by, The extension line of the pressure-reducing channel is a straight line; the angle between the extension direction of the pressure-reducing channel and the extension direction of the corresponding end of the main air outlet is an acute angle.

5. The air outlet structure according to any one of claims 1 to 4, characterized in that, The main air outlet has a first sidewall facing the adjacent secondary air outlet; the secondary air outlet has a second sidewall facing the adjacent secondary air outlet and a third sidewall facing the flow guide structure; the height of the third sidewall is lower than the height of the flow guide structure; the first sidewall and the second sidewall are spaced apart; the first sidewall, the second sidewall, the outer shell and the third sidewall form the pressure relief channel.

6. The air outlet structure according to any one of claims 1 to 4, characterized in that The bottom surface of the pressure-reducing channel is coplanar with the bottom surfaces of the adjacent and connected main air outlet and secondary air outlet.

7. The air outlet structure according to any one of claims 1 to 4, characterized in that The plurality of main air outlets include a first main air outlet and a second main air outlet; the first main air outlet and the second main air outlet are arranged opposite to each other.

8. The air outlet structure according to claim 7, characterized in that, The first main air outlet is located on the top side of the second main air outlet; The pressure-reducing channel connected to the first main air outlet is designated as the first pressure-reducing channel; the pressure-reducing channel connected to the second main air outlet is designated as the second pressure-reducing channel. The cross-sectional area of ​​the second pressure-reducing channel is larger than that of the first pressure-reducing channel.

9. An air treatment device, characterized in that Includes the air outlet structure as described in any one of claims 1 to 8.

10. The air treatment device of claim 9, wherein, The air handling equipment is an air purification device.

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