Air guide device and cabinet air conditioner

Abstract

The utility model provides a kind of air guide device and air conditioner cabinet, it is related to air conditioner technical field, to solve the problem that existing air guide device cannot be well guided to the front of air conditioner cabinet to the upward or downward airflow and design.The air guide device includes center column and multiple ring-shaped blades being sleeved in center column, and the ring-shaped blade and center column form air guide interval, and multiple ring-shaped blades are arranged along the axial direction of center column;Ring-shaped blade includes first air guide surface close to the front of air conditioner cabinet and second air guide surface close to the rear of air conditioner cabinet, and first air guide surface and second air guide surface are all towards fan outlet, and first air guide surface extends obliquely towards first direction, and second air guide surface extends obliquely towards second direction, and first direction is the direction of fan outlet and parallel to the axial direction of center column, and second direction is opposite to first direction.The utility model can guide the upward or downward airflow to the front of air conditioner cabinet.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and more specifically, to an air guide device and an air conditioner cabinet unit. Background Technology

[0002] Floor-standing air conditioners typically require forward airflow. Mixed-flow fans, which can only direct airflow upwards or downwards within the unit, often require a deflector to guide the airflow to the front of the unit. However, existing deflectors are ineffective at effectively directing this airflow to the front of the floor-standing air conditioner. Utility Model Content

[0003] The first objective of this invention is to provide an air guiding device to solve the technical problem that existing air guiding devices cannot effectively guide upward or downward airflow to the front of the air conditioning unit.

[0004] The air guiding device provided by this utility model includes a central column and a plurality of annular blades sleeved on the central column. An air guiding interval is formed between the annular blades and the central column, and the plurality of annular blades are spaced apart along the axial direction of the central column. The annular blades include a first air guiding surface and a second air guiding surface. Both the first air guiding surface and the second air guiding surface face the fan outlet and extend radially outward along the central column. The first air guiding surface extends obliquely in a first direction, and the second air guiding surface extends obliquely in a second direction. The first direction is the direction of the fan outlet, and the second direction is opposite to the first direction. Both the first direction and the second direction are parallel to the axial direction of the central column.

[0005] The application of this air guide device in an air conditioning unit is illustrated using an example. During use, the central column of the air guide device is vertically positioned. When airflow moves inside the unit, it flows along the axial direction of the central column. By setting the first air guide surface to extend radially outward towards the fan outlet along the central column, and setting the second air guide surface to extend radially outward in the opposite direction to the fan outlet, when the airflow moves axially along the central column: taking the fan outlet being below the air guide device as an example, the airflow flows upward along the outer surface of the central column. The first air guide surface is in an upward orientation, and the second air guide surface is in an inverted orientation. When passing the annular blades, on the one hand, the airflow will flow along the first air guide surface towards the front of the air conditioning unit, achieving forward delivery. On the other hand, under the action of the second air guide surface, the airflow is compressed. A portion of the airflow compressed by the second air guide surface can flow upward through the air intake gap to the top of the annular blade, and is further guided to the front of the air conditioner unit by the first air guide surface of the upper annular blade. Another portion of the airflow compressed by the second air guide surface is blocked by the current annular blade and will not pass through the air intake gap. At this time, this portion of the airflow will flow forward along the lower surface of the annular blade to the front first air guide surface, so as to be guided forward by the first air guide surface.

[0006] During the process described above, as the airflow moves upward along the central column, a small portion of the airflow will flow directly upward through the air-guiding gap between the annular blades and the central column. When this portion of the airflow reaches the top of the annular blades, it will be guided to the front of the air conditioning unit by the first air-guiding surface of the upper annular blades. This achieves the segmentation of the airflow along the central column axis to ensure uniform airflow in the vertical direction.

[0007] Therefore, the aforementioned air guiding device can not only guide the upward or downward airflow to the front of the air conditioning unit, but also divide the airflow along the central column axis. Under the action of multiple annular blades, the airflow can be divided into multiple segments and sent forward, avoiding the air conditioning air from concentrating near the air guiding device inlet, thereby improving the uniformity of air supply.

[0008] Furthermore, along the first direction, the angle β1 between the first air guide surface and the radial section of the central column gradually increases. This arrangement avoids abrupt changes in the air delivery angle between the lowermost and uppermost first air guide surfaces, allowing the angle at which the first air guide surface guides the airflow to gradually transition to its final angle state, thereby achieving a smooth change in the airflow angle. The angle β2 between the second air guide surface and the radial section of the central column also gradually increases. This arrangement avoids abrupt changes in the air delivery angle between the lowermost and uppermost second air guide surfaces, allowing the angle at which the second air guide surface guides the airflow to gradually transition to its final angle state, thereby achieving a smooth change in the airflow angle.

[0009] Furthermore, the first air guide surface is a concave arc surface. This configuration of the first air guide surface not only guides the airflow forward but also converges it, increasing the air delivery distance. The second air guide surface is also a concave arc surface. This configuration of the second air guide surface, while guiding the rear airflow to the front, also converges it, allowing this airflow to flow smoothly between adjacent annular blades, reducing losses caused by airflow impacting the upper annular blades.

[0010] Furthermore, the annular blade also includes an air-guiding surface disposed opposite to the first air-guiding surface, and extending radially outward along the central column, the air-guiding surface extending obliquely in the first direction; the air-guiding surface is a convex arc surface. By setting the air-guiding surface as a convex arc surface, the airflow can flow forward by means of the Coanda effect when passing through the air-guiding surface, thereby reducing airflow loss.

[0011] Furthermore, the first air guide surface has a first connecting hole penetrating the annular blade, and the first connecting hole communicates with the outer surface of the central column; the second air guide surface has a second connecting hole penetrating the annular blade, and the second connecting hole communicates with the outer surface of the central column. When assembling the annular blade and the central column, the annular blade can be fitted onto the central column, and a first connector passing through the first connecting hole can be used to fix it to the central column. Simultaneously, a second connector passing through the second connecting hole can be used to fix it to the central column, thereby securing the annular blade on the central column.

[0012] Furthermore, the air guiding device also includes a reinforcing structure, wherein at least two of the annular blades closest to the fan outlet are fixedly connected by the reinforcing structure. This arrangement enables structural reinforcement of the annular blades near the fan outlet to prevent vibration or even deformation of the annular blades at the fan outlet due to strong winds.

[0013] Furthermore, the reinforcing structure is fixedly connected to two adjacent annular blades at the location of the second air guide surface. By placing the reinforcing structure at the aforementioned location, it almost does not obstruct the forward and upward airflow, thereby reducing airflow loss. The reinforcing structure includes multiple reinforcing plates, which are arranged at circumferential intervals along the central column. This arrangement of the reinforcing structure not only ensures the structural reinforcement effect on the annular blades but also features a simple structure that is easy to manufacture.

[0014] Furthermore, the central column includes a straight cylindrical section and a guide section arranged along its own axial direction. The guide section is located at the end of the straight cylindrical section away from the fan outlet. Each of the annular blades is fitted onto the straight cylindrical section. The guide section is provided with an inclined guide surface near the front of the air conditioning unit, extending radially outward along the central column, and the inclined guide surface extends inclined in the first direction. This arrangement of the central column, on the one hand, utilizes the space between the annular blades and the straight cylindrical section to form a vertically penetrating airflow interval, facilitating the upward flow of the airflow from the fan and ensuring uniform vertical airflow. On the other hand, when the airflow reaches above the uppermost annular blade, the inclined guide surface of the guide section guides this portion of the airflow, causing it to be blown forward and avoiding airflow loss due to continued upward flow.

[0015] Furthermore, the outer circumferential surface of the central column is any one of a circular arc surface and a near-circular arc surface, or a combination of both. This design ensures that the airflow does not experience abrupt changes in path as it flows along the outer surface of the central column, resulting in smoother flow. And / or, the central column is a hollow column. This design, on the one hand, creates an airflow channel inside the central column, allowing the top of the central column to remain open when the air conditioner unit requires top-outflow, enabling airflow to flow upwards from inside the central column to its top for top-outflow; on the other hand, it reduces the weight of the air guiding device, reducing the load on the lower support cylinder and improving assembly efficiency.

[0016] The second objective of this utility model is to provide an air conditioning unit that solves the technical problem that existing air guiding devices cannot effectively guide upward or downward airflow to the front of the air conditioning unit.

[0017] The air conditioner cabinet unit provided by this utility model includes a casing, a mixed-flow fan, and the aforementioned air guiding device. The mixed-flow fan and the air guiding device are disposed inside the casing, and the first air guiding surface and the second air guiding surface of the air guiding device are both opposite to the fan outlet. The casing has an air inlet communicating with the fan inlet and an air outlet opposite to the air guiding device, and the air outlet faces the front of the air conditioner cabinet unit.

[0018] When this air conditioner unit is in operation, the mixed-flow fan starts, drawing outside air into the interior of the casing through the air inlet. Driven by the mixed-flow fan, this airflow further flows to the fan inlet and is then discharged from the fan outlet towards the air guide device. By setting the first and second guide surfaces of the air guide device opposite to the fan outlet, the airflow discharged from the fan outlet is guided by the first and second guide surfaces during its flow through the air guide device, ultimately being blown out through the air outlet at the front of the air conditioner unit, achieving forward air delivery.

[0019] By installing the aforementioned air guiding device in the air conditioning unit, the air conditioning unit gains all the advantages of the aforementioned air guiding device, which will not be elaborated here. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of an air conditioner cabinet unit provided in an embodiment of the present utility model;

[0022] Figure 2 An exploded view of the air conditioner cabinet unit provided in this embodiment of the utility model;

[0023] Figure 3 A longitudinal cross-sectional view of an air conditioner cabinet unit provided for an embodiment of this utility model;

[0024] Figure 4 A schematic diagram of the structure of the air conditioning unit provided in this embodiment of the present invention, showing the air guiding device located above the mixed flow fan;

[0025] Figure 5 A side view of the air guiding device of the air conditioner cabinet unit provided in this embodiment of the utility model, located above the mixed flow fan;

[0026] Figure 6 A longitudinal cross-sectional view of the air guiding device of the air conditioner cabinet unit provided in this embodiment of the utility model, located above the mixed flow fan;

[0027] Figure 7 A front view of the air guide device of the air conditioner cabinet provided in an embodiment of this utility model;

[0028] Figure 8 The rear view of the air guide device of the air conditioner cabinet provided in the embodiment of this utility model.

[0029] Explanation of reference numerals in the attached figures:

[0030] 010-Air guide device; 020-Casing; 021-Air inlet; 022-Air outlet; 030-Mixed flow fan; 031-Fan inlet; 032-Fan outlet; 040-Air outlet grille; 050-Air diffuser; 060-Decorative parts; 070-Support cylinder;

[0031] 100 - Central column; 200 - Annular blades; 200a - Lower annular blades; 200b - Upper annular blades; 300 - Air intake spacing; 400 - Reinforced structure;

[0032] 110 - Straight section; 120 - Guide section; 121 - Inclined guide surface;

[0033] 210 - First air guide surface; 220 - Second air guide surface; 230 - Air intake surface; 240 - First connecting hole; 250 - Second connecting hole;

[0034] 410 - Reinforcing plate. Detailed Implementation

[0035] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0036] Figure 1 This is a structural schematic diagram of the air conditioner cabinet unit provided in this embodiment; Figure 2 This is an exploded view of the air conditioner unit provided in this embodiment; Figure 3 This is a longitudinal cross-sectional view of the air conditioner unit provided in this embodiment. Figures 1 to 3 As shown, this embodiment provides an air conditioner cabinet unit, including a housing 020, a mixed-flow fan 030, and an air guide device 010. Specifically, the mixed-flow fan 030 and the air guide device 010 are disposed inside the housing 020, and the first air guide surface 210 and the second air guide surface 220 of the air guide device 010 are both opposite to the fan outlet 032. The housing 020 has an air inlet 021 that communicates with the fan inlet 031, and an air outlet 022 that is opposite to the air guide device 010, wherein the air outlet 022 faces the front of the air conditioner cabinet unit.

[0037] In this embodiment, the mixed-flow fan 030 is located below the air guide device 010.

[0038] When the air conditioner unit is in operation, the mixed-flow fan 030 starts, drawing outside airflow into the interior of the casing 020 through the air inlet 021. Under the power of the mixed-flow fan 030, this airflow further flows to the fan inlet 031 and is discharged upwards from the fan outlet 032. By setting the first air guide surface 210 and the second air guide surface 220 of the air guide device 010 to face the fan outlet 032, the airflow discharged from the fan outlet 032 can be guided by the first air guide surface 210 and the second air guide surface 220 during its upward flow, and finally blown out through the air outlet 022 at the front of the air conditioner unit, thus achieving forward air delivery.

[0039] It should be noted that in other embodiments, the mixed-flow fan 030 can also be positioned above the air guide device 010. In this case, the mixed-flow fan 030 blows air downwards, and under the guidance of the air guide device 010, this airflow is directed to the air outlet 022 at the front of the air conditioning unit. This embodiment is merely an example of the mixed-flow fan 030 being positioned below the air guide device 010, and is not intended to limit the scope of this application.

[0040] It should also be noted that, generally speaking, one side of the air conditioner unit is the side facing the room or the user's activity area; this side is the front of the air conditioner unit. The side facing a corner or a wall is the rear side. When a user is facing the air conditioner unit, the user's left side is the left side of the air conditioner unit, and the user's right side is the right side of the air conditioner unit. Specifically, in this embodiment, the front-back, up-down, and left-right directions of the air conditioner unit are as follows: Figure 2 The corresponding arrows are shown in the diagram.

[0041] In this embodiment, the mixed-flow fan 030 not only makes the airflow blown out by the mixed-flow fan 030 into a ring shape, but also makes the wind speed faster and the air delivery distance farther.

[0042] It should be noted that the mixed-flow fan is equipped with a high-speed motor, and a conical diffuser is formed in the center of the air duct, with a guide ring on the outer ring, thus forming an annular accelerating air outlet. A ring of ribs is also provided at the air outlet of the mixed-flow fan to achieve a spiral high-speed air outlet.

[0043] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the air conditioner unit may further include a diffuser plate 050. The diffuser plate 050 is positioned at the air outlet 022. Using the diffuser plate 050, the airflow delivered through the air outlet 022 can be dispersed, achieving a zero-wind-feel function and preventing direct airflow from blowing directly on the user.

[0044] Please continue to refer to Figure 2 In this embodiment, the air conditioner unit may further include an air outlet grille 040. The air outlet grille 040 is located at the air outlet 022 and is situated between the air diffuser 050 and the air outlet 022, serving as a structural support at the air outlet 022.

[0045] In this embodiment, the air diffuser 050 can be magnetically attached to the air outlet grille 040.

[0046] Please continue to refer to Figure 1 and Figure 2 In this embodiment, the air conditioner cabinet unit may also include a decorative component 060, wherein the decorative component 060 is located between the upper and lower air diffuser plates 050 and is used to cover the mixed flow fan 030 inside the casing 020.

[0047] The following text will provide a detailed description of the specific structure and working principle of the air guide device 010.

[0048] Figure 4 A schematic diagram of the structure of the air guide device 010 of the air conditioner cabinet unit provided in this embodiment, located above the mixed flow fan 030; Figure 5 The air guide device 010 of the air conditioner cabinet unit provided in this embodiment is located above the mixed flow fan 030.

[0049] Please continue to refer to Figure 2 and Figure 3 and combined Figure 4 and Figure 5 The air guiding device 010 provided in this embodiment includes a central column 100 and a plurality of annular blades 200 sleeved on the central column 100. An air guiding interval 300 is formed between the annular blades 200 and the central column 100, and the plurality of annular blades 200 are spaced apart along the axial direction of the central column 100. Specifically, the annular blades 200 include a first air guiding surface 210 and a second air guiding surface 220. Both the first air guiding surface 210 and the second air guiding surface 220 face the fan outlet 032 and extend radially outward along the central column 100. The first air guiding surface 210 extends obliquely in a first direction, and the second air guiding surface 220 extends obliquely in a second direction. The first direction is the direction of the fan outlet 032; the second direction is opposite to the first direction, and both the first direction and the second direction are parallel to the axial direction of the central column 100.

[0050] In this embodiment, "first direction" and "second direction" can be referred to as Figure 4 and Figure 5 As indicated by the corresponding arrow.

[0051] During use, the central column 100 of the air guide device 010 is vertically positioned. By setting the first air guide surface 210 to extend radially outward in a first direction along the central column 100, and setting the second air guide surface 220 to extend radially outward in a direction opposite to the first direction along the central column 100, when the airflow flows along the axial direction of the central column 100, the first air guide surface 210 is in an upward posture, and the second air guide surface 220 is in an inverted posture.

[0052] The following explanation will focus on the airflow between the lower annular blade 200a and the upper annular blade 200b. When the airflow from the mixed-flow fan 030 flows upward to the position of the lower annular blade 200a, on the one hand, the airflow will flow along the first guide surface 210 of the lower annular blade 200a towards the front of the air conditioning unit, achieving forward air delivery. (Refer to...) Figure 5As indicated by the black arrow in the middle. On the other hand, under the action of the second air guide surface 220 of the lower annular blade 200a, the airflow is compressed. A portion of the airflow compressed by the second air guide surface 220 can flow upwards through the air intake gap 300 to above the lower annular blade 200a, and further, under the action of the first air guide surface 210 of the upper annular blade 200b, is guided to the front of the air conditioning unit and discharged. (Refer to...) Figure 5 The blue arrow indicates that another portion of the airflow, compressed by the second guide surface 220, is blocked by the lower annular blade 200a and will not pass through the air intake gap 300. At this point, this portion of the airflow will flow forward along the lower surface of the lower annular blade 200a to the first guide surface 210 of the lower annular blade 200a, where it will be guided forward and discharged. (Refer to...) Figure 5 The green arrow in the middle.

[0053] During the above process, as the airflow flows upward along the central column 100, a small portion of the airflow will flow directly upward through the air intake gap 300 between the lower annular blade 200a and the central column 100, as shown in the reference. Figure 5 The red arrow indicates that when this airflow reaches above the lower annular blade 200a, it will be guided to the front of the air conditioning unit by the first air guide surface 210 of the upper annular blade 200b, thereby dividing the airflow into multiple segments along the central column 100 axis to ensure uniform airflow in the vertical direction.

[0054] It can be seen that the above-mentioned air guide device 010 can not only guide the upward or downward airflow to the front of the air conditioner unit, but also divide the airflow along the central column 100 axis. Under the action of multiple annular blades 200, the airflow can be divided into multiple segments and sent forward, avoiding the air conditioning air from concentrating near the inlet of the air guide device 010, thereby improving the uniformity of air supply.

[0055] In this embodiment, the air-guiding interval 300 formed between the first air-guiding surface 210 and the central column 100 gradually decreases along the first direction. That is, the air-guiding interval 300 is larger closer to the fan outlet 032 and smaller further away from the fan outlet 032. On the one hand, this allows the first air-guiding interval near the fan outlet 032 to have a larger flow area when the airflow is blown out of the fan outlet 032 and flows along the first direction, which is conducive to guiding the airflow away from the fan outlet 032, thereby ensuring that the airflow is far away from the fan outlet 032. On the one hand, the air volume at the fan outlet 032 can be increased. On the other hand, a conical airflow channel can be formed between multiple first air guide surfaces 210 and the central column 100. The large-diameter end of the conical airflow channel is close to the fan outlet 032, and the small-diameter end is far away from the fan outlet 032. By utilizing the gradual reduction of the flow area during the airflow process, the airflow velocity can be increased to increase the air volume and velocity flowing to the farthest first air guide surface 210, thereby ensuring the forward air volume at the part far from the fan outlet 032 and improving the uniformity of the upper and lower airflow during the forward airflow process.

[0056] Figure 6 A longitudinal cross-sectional view of the air guiding device 010 of the air conditioner cabinet unit provided in this embodiment, located above the mixed flow fan 030; Figure 7 This is a front view of the air guide device 010 of the air conditioner cabinet unit provided in this embodiment. Figure 6 and Figure 7 As shown, in this embodiment, along the first direction, the angle between the first air guiding surface 210 and the radial section of the central column 100 gradually increases. That is, in this air guiding device 010, along the upward direction, the angle between the first air guiding surface 210 of the annular blade 200 and the horizontal plane gradually increases.

[0057] The angle between the first guide surface 210 and the radial section of the central column 100 can be determined by... Figure 6 In this context, β1 represents the radial section of the central column 100, which is parallel to the horizontal plane.

[0058] By employing the above configuration, abrupt changes in the airflow angle between the lowest and highest first air guide surfaces 210 can be avoided. This allows the angle at which the first air guide surface 210 guides the airflow to gradually transition to its final angle, thus achieving a smooth change in airflow angle. Simultaneously, this configuration ensures that the airflow guided by the lowest first air guide surface 210 has a smaller angle relative to the horizontal plane, which helps increase the outlet distance of the lower airflow. Conversely, the airflow guided by the highest first air guide surface 210 has a larger angle relative to the horizontal plane, which helps increase the outlet height of the upper airflow, facilitating wide-angle airflow.

[0059] Figure 8 This is a rear view of the air guide device 010 of the air conditioner unit provided in this embodiment. Please continue to refer to... Figure 6 and combined Figure 8 In this embodiment, along the first direction, the angle between the second air guiding surface 220 and the radial section of the central column 100 gradually increases. That is, in this air guiding device 010, along the upward direction, the angle between the second air guiding surface 220 of the annular blade 200 and the horizontal plane gradually increases.

[0060] The angle between the second guide surface 220 and the radial section of the central column 100 can be determined by... Figure 6 It is represented by β2 in the equation.

[0061] By employing the above configuration, abrupt changes in the airflow angle between the lowermost and uppermost second air guide surfaces 220 can be avoided. This allows the angle at which the second air guide surface 220 guides the airflow to gradually transition to its final angle, thus achieving a smooth change in airflow angle. Similarly, this configuration ensures that the airflow guided by the lowermost second air guide surface 220 has a smaller angle relative to the horizontal plane, which helps increase the outlet distance of the lower airflow. Conversely, the airflow guided by the uppermost second air guide surface 220 has a larger angle relative to the horizontal plane, which helps increase the outlet height of the upper airflow, thereby facilitating wide-angle airflow.

[0062] Please continue to refer to Figure 5 and Figure 6 In this embodiment, the first air guide surface 210 is a concave arc surface.

[0063] The above-described configuration of the first air guide surface 210 not only guides the airflow so that it can be sent forward, but also converges the airflow to increase the air delivery distance.

[0064] Similarly, in this embodiment, the second air guide surface 220 is also a concave arc surface.

[0065] The above-described configuration of the second air guide surface 220 not only guides the rear airflow to the front, but also converges the airflow, allowing this part of the airflow to flow smoothly between the two adjacent annular blades 200, reducing the loss caused by the airflow hitting the upper annular blades 200.

[0066] Please continue to refer to Figures 4 to 6 In this embodiment, the annular blade 200 may also include an air-guiding surface 230 disposed opposite to the first air-guiding surface 210, and the air-guiding surface 230 extends outward radially along the central column 100 and extends obliquely in the first direction.

[0067] Still with Figure 5The flow of air between the lower annular blade 200a and the upper annular blade 200b will be explained. With the above arrangement, when the airflow passes upward through the air-guiding gap 300 between the lower annular blade 200a and the central column 100 and flows above the lower annular blade 200a, it is guided not only by the first air-guiding surface 210 of the upper annular blade 200b, but also by the air-guiding surface 230 of the lower annular blade 200a, so that the airflow can be sent forward through the air supply channel between the lower annular blade 200a and the upper annular blade 200b.

[0068] In this embodiment, the air-drawing surface 230 is a convex arc surface.

[0069] By setting the air intake surface 230 as a convex arc surface, the airflow can flow forward with the help of the Coanda effect when passing through the air intake surface 230, thereby reducing airflow loss.

[0070] It should be noted that, in this embodiment, the radius of curvature of the first air guiding surface 210 can be equal to the radius of curvature of the air duct surface 230. That is, the thickness of the annular blade 200 is equal in the portion between the first air guiding surface 210 and the air duct surface 230.

[0071] In this embodiment, the annular blade 200 is fixedly connected to the central column 100.

[0072] By connecting the annular blades 200 to the central column 100, the air guide device 010 becomes a modular structure. During assembly, the annular blades 200 and the central column 100 can be connected together first, and then the air guide device 010 can be installed as a whole into the inside of the housing 020 to improve assembly efficiency.

[0073] Please continue to refer to Figure 7 In this embodiment, the first air guide surface 210 has a first connecting hole 240 that penetrates the annular blade 200, and the first connecting hole 240 communicates with the outer surface of the central column 100; please continue to refer to Figure 8 The second air guide surface 220 has a second connecting hole 250 that penetrates the annular blade 200 and is connected to the outer surface of the central column 100.

[0074] When assembling the annular blade 200 and the central column 100, the annular blade 200 can be fitted onto the central column 100, and a first connector (not shown in the figure) can be used to pass through the first connecting hole 240 and be fixedly connected to the central column 100. At the same time, a second connector (not shown in the figure) can be used to pass through the second connecting hole 250 and be fixedly connected to the central column 100, so as to fix the annular blade 200 on the central column 100.

[0075] This method of fixing the annular blade 200 to the central column 100 eliminates the need for additional complex connection structures. Furthermore, since the annular blade 200 is fixed simultaneously at the positions of the first air guide surface 210 and the second air guide surface 220, it can increase the number of fixing points and improve connection reliability.

[0076] In addition, since the first connecting hole 240 and the second connecting hole 250 are distributed in the front and rear directions of the central column 100, there is no obstruction between the left and right sides of the central column 100 and the annular blade 200, so that no additional resistance is added during the process of the airflow being guided upward through the air-guiding surface 220 and passing through the air-guiding interval 300.

[0077] Specifically, the first connecting hole 240 and the second connecting hole 250 are open holes. Correspondingly, a first screw hole opposite to the first connecting hole 240 and a second screw hole opposite to the second connecting hole 250 can be opened in the central column 100. At this time, the first connector and the second connector can both be connecting screws. By using the first connector to pass through the first connecting hole 240 and screw it into the first screw hole, and by using the second connector to pass through the second connecting hole 250 and screw it into the second screw hole, the annular blade 200 can be fixedly connected to the central column 100, and the connection reliability is good.

[0078] This design, which allows the annular blade 200 to be detachably fixed to the central column 100, facilitates the disassembly and maintenance of the annular blade 200.

[0079] In this embodiment, both the first connecting hole 240 and the second connecting hole 250 are countersunk holes.

[0080] This configuration allows the first connector located in the first connection hole 240 to be hidden inside the first connection hole 240, preventing the first connector from protruding from the first air guide surface 210 and thus reducing the resistance to the airflow passing through the first air guide surface 210; while the second connector located in the second connection hole 250 is hidden inside the second connection hole 250, preventing the second connector from protruding from the second air guide surface 220 and thus reducing the resistance to the airflow passing through the second air guide surface 220.

[0081] Please continue to refer to Figure 5 and Figure 6 In this embodiment, the air guiding device 010 may also include a reinforcing structure 400. Specifically, among the plurality of annular blades 200, at least two annular blades 200 near the fan outlet 032 are fixedly connected by the reinforcing structure 400.

[0082] The aforementioned reinforcement structure 400 can enhance the structure of the annular blade 200 near the fan outlet 032, so as to prevent the annular blade 200 from shaking or even deforming due to the large wind force at the fan outlet 032.

[0083] Please continue to refer to Figure 6 In this embodiment, a support cylinder 070 is provided between the air guide device 010 and the mixed-flow fan 030. Specifically, the support cylinder 070 is supported on the housing of the mixed-flow fan 030, and the air guide device 010 is supported on the support cylinder 070. The airflow flowing out of the fan outlet 032 flows upward through the support cylinder 070 to the position of the air guide device 010. A reinforcing structure 400 is also provided between the lowermost annular blade 200 and the support cylinder 070.

[0084] By also providing a reinforcing structure 400 between the bottom annular blade 200 and the support cylinder 070, the gravity load can be transferred downward to the support cylinder 070 through the reinforcing structure 400, so as to use the support cylinder 070 as the supporting foundation of the air guide device 010, thereby further improving the structural stability of the bottom annular blade 200.

[0085] Please continue to refer to Figure 5 and Figure 6 In this embodiment, the reinforcing structure 400 is fixedly connected to two adjacent annular blades 200 at the location of the second air guide surface 220.

[0086] By placing the reinforcing structure 400 at the aforementioned location, the reinforcing structure 400 hardly obstructs the forward and upward airflow, thereby reducing airflow loss.

[0087] Please continue to refer to Figure 5 , Figure 6 and Figure 8 In this embodiment, the reinforcing structure 400 may include a plurality of reinforcing plates 410, wherein the plurality of reinforcing plates 410 are arranged at intervals along the circumference of the central column 100.

[0088] This configuration of the reinforcement structure 400 not only ensures the structural reinforcement effect on the annular blade 200, but also has a simple structure and is easy to process and manufacture.

[0089] Please continue to refer to Figure 5 and Figure 6 In this embodiment, the central column 100 may include a straight cylindrical section 110 and a guide section 120 arranged along its own axial direction. The guide section 120 is located at the end of the straight cylindrical section 110 away from the fan outlet 032. Each annular blade 200 is sleeved on the straight cylindrical section 110. The guide section 120 is provided with an inclined guide surface 121, which extends radially outward along the central column 100 and is inclined in a first direction. That is, the inclined extension direction of the inclined guide surface 121 is the same as the inclined extension direction of the first guide surface.

[0090] In this embodiment, since the mixed-flow fan 030 is located at the lower end of the air guide device 010, the above-mentioned "the guide section 120 is located at the end of the straight section 110 away from the fan outlet 032" means that the guide section 120 is located at the upper end of the straight section 110. At this time, the inclined guide surface 121 of the guide section 120 and the air-guiding surface 230 of the uppermost annular blade 200 also form an air supply channel.

[0091] The above-mentioned arrangement of the central column 100 can, on the one hand, utilize the space between the annular blades 200 and the straight section 110 to form a vertically penetrating air intake interval 300, which facilitates the upward flow of the airflow blown by the mixed flow fan 030, thereby ensuring the uniformity of vertical air supply. On the other hand, when the airflow reaches above the uppermost annular blades 200, the inclined guide surface 121 provided in the guide section 120 can guide this part of the airflow, so that it is blown forward, avoiding the loss of air volume caused by the airflow continuing to flow upward.

[0092] Please continue to refer to Figure 4 In this embodiment, the outer peripheral surface of the central column 100 is a combination of a circular arc surface and a near-circular arc surface. Specifically, the outer peripheral surface of the straight cylinder section 110 is a circular arc surface, and the outer peripheral surface of the guide section 120 is a near-circular arc surface.

[0093] This setting ensures that the airflow does not experience abrupt changes in path as it flows along the outer surface of the central column 100, resulting in smoother flow.

[0094] In other embodiments, the outer peripheral surface of the central pillar 100 may be set as an arc surface, or the outer peripheral surface of the central pillar 100 may be set as a near-arc surface.

[0095] Please continue to refer to Figure 6 In this embodiment, the central column 100 is a hollow column.

[0096] This design allows for several advantages. First, it creates an airflow channel inside the central column 100, enabling the top of the central column 100 to remain open when the air conditioner unit requires top airflow, allowing airflow to flow upwards inside the central column 100 to its top and achieve top airflow. Second, it reduces the weight of the air guide device 010, thereby reducing the load on the lower support cylinder 070 and improving assembly efficiency.

[0097] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

[0098] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the term "comprising" or any other variations thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0099] In the above embodiments, descriptions of directions such as "up", "down", "front", "back", "left", "right", and "side" are all based on the accompanying drawings.

[0100] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air guiding device, characterized in that, The device includes a central column (100) and a plurality of annular blades (200) sleeved on the central column (100). An air-guiding interval (300) is formed between the annular blades (200) and the central column (100). The plurality of annular blades (200) are spaced apart along the axial direction of the central column (100). The annular blades (200) include a first air-guiding surface (210) and a second air-guiding surface (220). Both the first air-guiding surface (210) and the second air-guiding surface (220) face the fan outlet (032) and extend radially outward along the central column (100). The first air-guiding surface (210) extends obliquely in a first direction, and the second air-guiding surface (220) extends obliquely in a second direction. The first direction is the direction of the fan outlet (032), and the second direction is opposite to the first direction. Both the first direction and the second direction are parallel to the axial direction of the central column (100).

2. The air guiding device according to claim 1, characterized in that, Along the first direction, the angle β1 between the first air guide surface (210) and the radial section of the central column (100) gradually increases, and the angle β2 between the second air guide surface (220) and the radial section of the central column (100) gradually increases.

3. The air guiding device according to claim 1, characterized in that, The first air guide surface (210) is a concave arc surface; the second air guide surface (220) is a concave arc surface.

4. The air guiding device according to claim 1, characterized in that, The annular blade (200) also includes an air-guiding surface (230) disposed opposite to the first air-guiding surface (210), and extends outward along the radial direction of the central column (100). The air-guiding surface (230) extends obliquely toward the first direction; the air-guiding surface (230) is a convex arc surface.

5. The air guiding device according to claim 1, characterized in that, The first air guide surface (210) has a first connecting hole (240) that penetrates the annular blade (200) and the first connecting hole (240) is connected to the outer surface of the central column (100); the second air guide surface (220) has a second connecting hole (250) that penetrates the annular blade (200) and the second connecting hole (250) is connected to the outer surface of the central column (100).

6. The air guiding device according to claim 1, characterized in that, The air guiding device also includes a reinforcing structure (400), wherein at least two of the annular blades (200) closest to the fan outlet (032) are fixedly connected by the reinforcing structure (400).

7. The air guiding device according to claim 6, characterized in that, The reinforcing structure (400) is fixedly connected to two adjacent annular blades (200) at the location of the second air guide surface (220); the reinforcing structure (400) includes a plurality of reinforcing plates (410), which are arranged at intervals along the circumference of the central column (100).

8. The air guiding device according to claim 1, characterized in that, The central column (100) includes a straight cylindrical section (110) and a guide section (120) arranged along its own axis. The guide section (120) is located at the end of the straight cylindrical section (110) away from the fan outlet (032). Each of the annular blades (200) is sleeved on the straight cylindrical section (110). The guide section (120) is provided with an inclined guide surface (121) extending radially outward along the central column (100). The inclined guide surface (121) extends inclinedly in the first direction.

9. The air guiding device according to claim 1, characterized in that, The outer circumferential surface of the central column (100) is any one of a circular arc surface and a near-circular arc surface or a combination of both; the central column (100) is a hollow column.

10. A cabinet air conditioner, characterized in that, The device includes a housing (020), a mixed-flow fan (030), and an air guiding device as described in any one of claims 1-9. The mixed-flow fan (030) and the air guiding device are disposed inside the housing (020), and the first air guiding surface (210) and the second air guiding surface (220) of the air guiding device are both opposite to the fan outlet (032). The housing (020) has an air inlet (021) that communicates with the fan inlet (031) and an air outlet (022) that is opposite to the air guide device. The air outlet (022) faces the front of the air conditioner unit.

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