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 of uneven airflow in the air supply forward of existing air guide device and design.The air guide device includes the center column along first direction extension and the multiple first air guide parts spaced along the axial direction of center column, and the direction of fan outlet is first direction;First air guide part extends obliquely along first direction outward along the radial direction of center column;First air guide part and center column form first air guide interval, and along first direction, the first air guide interval between each first air guide part and center column is gradually reduced.The utility model makes airflow more uniform when air supply forward.

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. For mixed-flow fans, since they can only direct airflow upwards or downwards within the unit, they often need to be equipped with air guide devices to direct the airflow to the front of the unit. However, existing air guide devices often result in uneven airflow when directing air forward, with stronger airflow near the mixed-flow fan and weaker or even no airflow further away. Utility Model Content

[0003] The first objective of this invention is to provide an air guiding device to solve the technical problem of uneven airflow between the upper and lower parts when the existing air guiding device delivers air forward.

[0004] The air guiding device provided by this utility model includes a central column extending along a first direction and a plurality of first air guiding parts spaced apart along the axial direction of the central column, wherein the first direction is the direction of the fan outlet; the first air guiding parts extend radially outward along the central column and are inclined towards the first direction; a first air guiding interval is formed between the first air guiding parts and the central column, and the first air guiding interval formed between each first air guiding part and the central column gradually decreases along the first direction.

[0005] The application of this air guide device in a cabinet air conditioner will be used as an example for explanation. During use, the central column of the air guide device is placed vertically, and the first air guide section faces the air outlet at the front of the cabinet air conditioner. The airflow blown out by the fan outlet will flow along the outer surface of the central column in the first direction. By setting the first air guide section to extend radially outward in a first direction along the central column, taking the fan outlet located below the air guide device as an example, the airflow flows upward along the outer surface of the central column, and the first air guide section is in an upward posture. When it flows through the position of the lowest first air guide section, on the one hand, the airflow will flow along the first air guide section towards the front of the air conditioner unit, realizing forward air delivery. On the other hand, since a first air-guiding interval is formed between the first air guide section and the central column, part of the airflow blown by the mixed flow fan will pass through the first air-guiding interval and flow upward. For the airflow that flows upward through the lowest first air-guiding interval, when it flows between the lowest first air guide section and the second lowest first air guide section, part of the airflow will be sent forward under the action of the second lowest first air guide section, and the other part of the airflow will continue to flow upward through the first air-guiding interval between the second lowest first air guide section and the central column, and continue to deliver air forward in the same process as the airflow flow process described above, until the airflow moves to the position of the highest first air guide section, completing the entire forward air delivery process.

[0006] In the above process, by setting the first air-guiding interval between each first air guide and the central column to gradually decrease along the first direction, that is, making the first air-guiding interval larger closer to the fan outlet and smaller further away from the fan outlet, on the one hand, the first air-guiding interval near the fan outlet has a larger flow area when the airflow is blown out of the fan outlet and flows along the first direction, so as to guide the airflow away from the fan outlet, thereby ensuring the air volume away from the fan outlet. On the other hand, a conical airflow channel can be formed between multiple first air guides and the central column, wherein the large-diameter end of the conical airflow channel is close to the fan outlet and the small-diameter end is far away from the fan outlet. By utilizing the gradual decrease in flow area during the airflow process, the airflow velocity can be increased, thereby increasing the air volume and velocity flowing to the farthest first air guide, thereby ensuring the forward air volume away from the fan outlet and improving the uniformity of the vertical airflow during the forward air delivery process.

[0007] Furthermore, the air guiding device also includes a second air guiding section extending radially outward along the central column. The second air guiding section extends obliquely in a second direction, which is opposite to the first direction. The aforementioned second air guiding section guides the rear airflow, allowing it to be guided forward by the first air guiding section, reducing airflow loss and ensuring sufficient forward airflow.

[0008] Furthermore, a second air-guiding interval is formed between the second air guide and the central column, and the second air-guiding interval is connected to the first air-guiding interval. This arrangement allows the rear airflow to flow upwards through the second air-guiding interval to the space between two adjacent first air guides, thereby increasing the airflow volume in the area between the two adjacent first air guides and preventing excessive concentration of airflow on the lower surface of the first air guides, thus further improving airflow uniformity.

[0009] Furthermore, multiple annular blades are fixedly fitted around the outer periphery of the central column. These annular blades are spaced apart along the first direction. The annular blades form the first air guide section near the front of the air conditioner unit, and the annular blades form the second air guide section near the rear of the air conditioner unit. This design, which utilizes the two ends of the annular blades to form the first and second air guide sections, allows the first and second air guide sections to be formed in the same component. During assembly, simply installing the annular blades onto the central column simultaneously assembles both the first and second air guide sections, resulting in high efficiency.

[0010] Furthermore, along the first direction, the angle β1 between the first air guide 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 guides, allowing the angle at which the first air guide guides the airflow to gradually transition to its final angle state, thereby achieving a smooth change in the airflow angle. Along the first direction, the angle β2 between the second air guide 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 second air guides, allowing the angle at which the second air guide guides the airflow to gradually transition to its final angle state, thereby achieving a smooth change in the airflow angle.

[0011] Furthermore, the first air guide section has a first connecting hole, through which a first connector can pass and be fastened to the central column; the second air guide section has a second connecting hole, through which a second connector can pass and be fastened to the central column. This method of fixing the annular blade to the central column eliminates the need for additional complex connection structures. Moreover, since the annular blade is fixed simultaneously at both the first and second air guide sections, the number of fixing points can be increased, thereby improving connection reliability.

[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 central column includes a straight cylindrical section and a guide section arranged sequentially along the first direction, with each of the annular blades fitted and fixed to the straight cylindrical section; the guide section is provided with an inclined guide surface near the front of the air conditioner unit, extending radially outward along the central column, and the inclined guide surface extends obliquely towards 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 first and second air-guiding interval that runs vertically through the airflow, facilitating the upward flow of the airflow from the mixed-flow 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, avoiding airflow loss due to the airflow continuing to flow upward.

[0014] Furthermore, the outer circumferential surface of the central column is any one or a combination of two of the following: a circular arc surface and a near-circular arc surface. 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. The central column is a hollow column. This design allows for the formation of an airflow channel within the central column, enabling the top of the central column to remain open when the air conditioner unit requires top-outflow, allowing airflow to flow upwards from within the central column to its top for top-outflow. Furthermore, it reduces the weight of the air guiding device, thereby reducing the load on the lower support cylinder and improving assembly efficiency.

[0015] The second objective of this utility model is to provide an air conditioning unit that solves the technical problem of uneven airflow between the upper and lower parts when the existing air guiding device delivers air forward.

[0016] The air conditioner cabinet unit provided by this utility model includes a casing, a mixed-flow fan, and the aforementioned air guiding device. Both the mixed-flow fan and the air guiding device are disposed inside the casing, and the first air guiding part of the air guiding device is opposite to the fan outlet. The casing has an air inlet communicating with the fan inlet and an air outlet opposite to the first air guiding part, and the air outlet faces the front of the air conditioner cabinet unit.

[0017] When this air conditioner unit is in operation, the mixed-flow fan starts, drawing outside air into the interior of the unit 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 positioning the first air guide section of the air guide device opposite the fan outlet, the airflow discharged from the fan outlet is guided by the first air guide section 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.

[0018] 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

[0019] 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.

[0020] Figure 1 This is a structural schematic diagram of an air conditioner cabinet unit provided in an embodiment of the present utility model;

[0021] Figure 2An exploded view of the structure of the air conditioner cabinet unit provided in this embodiment of the utility model;

[0022] Figure 3 A longitudinal sectional view of an air conditioner cabinet unit provided for an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the air guiding device provided in an embodiment of the present utility model;

[0024] Figure 5 A side view of the air guiding device provided in this embodiment of the utility model, located above the mixed-flow fan;

[0025] Figure 6 A schematic diagram of the structure of the air guiding device provided in this embodiment of the utility model located above the mixed flow fan;

[0026] Figure 7 A longitudinal cross-sectional view of the air guiding device provided in an embodiment of this utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 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;

[0029] 100 - Central column; 200 - Annular blades; 200a - Lower annular blades; 200b - Upper annular blades; 300 - First air intake interval; 400 - Second air intake interval; 500 - Reinforced structure;

[0030] 110 - Straight section; 120 - Guide section; 121 - Inclined guide surface;

[0031] 210 - First air guide section; 210a - Lowermost first air guide section; 210b - Second lowest first air guide section; 220 - Second air guide section; 230 - First connecting hole; 240 - Second connecting hole. Detailed Implementation

[0032] 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.

[0033] 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 3This is a longitudinal 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 both disposed inside the housing 020, and the first air guide portion 210 of the air guide device 010 is 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 first air guide portion 210. The air outlet 022 faces the front of the air conditioner cabinet unit.

[0034] In this embodiment, the mixed-flow fan 030 is located below the air guide device 010.

[0035] When the air conditioner unit is in operation, the mixed-flow fan 030 starts, drawing outside air into the interior of the casing 020 through the air inlet 021. Driven by the mixed-flow fan 030, this airflow further flows to the fan inlet 031 and is discharged from the fan outlet 032 in the direction of the guide vane 010, i.e., upwards from the fan outlet 032. By setting the first guide section 210 of the guide vane 010 opposite to the fan outlet 032, the airflow discharged from the fan outlet 032 is guided by the first guide section 210 during its flow through the guide vane 010, ultimately being blown out through the air outlet 022 at the front of the air conditioner unit, achieving forward air delivery.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] In this embodiment, the air diffuser 050 can be magnetically attached to the air outlet grille 040.

[0043] 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.

[0044] The following text will provide a detailed description of the specific structure and working principle of the air guide device 010.

[0045] Figure 4 This is a schematic diagram of the air guide device 010 provided in this embodiment; Figure 5 The air guiding device 010 provided in this embodiment is located above the mixed-flow fan 030 in a side view. Figure 4 and Figure 5 As shown, the air guiding device 010 provided in this embodiment includes a central column 100 extending along a first direction and a plurality of first air guiding parts 210 spaced apart along the axial direction of the central column 100, wherein the first direction is the direction of the fan outlet 032; the first air guiding parts 210 extend obliquely outward along the radial direction of the central column 100; a first air guiding interval 300 is formed between the first air guiding parts 210 and the central column 100, and the first air guiding interval 300 formed between each first air guiding part 210 and the central column 100 gradually decreases along the first direction.

[0046] During use, the central column 100 of the air guide device 010 is vertically positioned, and the first air guide part 210 faces the air outlet 022 at the front of the air conditioner unit. The airflow blown out by the fan outlet 032 will flow along the outer surface of the central column 100 in the first direction. In this embodiment, the airflow blown out by the fan outlet 032 flows upward, that is, the first direction is the upward direction.

[0047] By configuring the first air guide 210 to extend radially outward in a first direction along the central column 100, the first air guide 210 is positioned in an upward orientation, as shown in the reference. Figure 5 Taking the example of airflow exiting from the fan outlet 032 and passing through the two first air guide sections 210 closest to the mixed-flow fan 030, the airflow will flow towards the front of the air conditioning unit along the bottom first air guide section 210a, thus achieving forward air delivery. (Refer to...) Figure 5 The black arrow is located below the lowest first air guide section 210a; on the other hand, since a first air intake gap 300 is formed between the lowest first air guide section 210a and the central column 100, a portion of the airflow blown by the mixed-flow fan 030 will flow upward through the first air intake gap 300, as shown in the reference. Figure 5 The red arrow indicates that for the upward-flowing airflow passing through the lowest first air-guiding interval 300, when it reaches the space between the lowest first air-guiding section 210a and the second lowest first air-guiding section 210b, a portion of the airflow will be propelled forward by the second lowest first air-guiding section 210b. (Refer to...) Figure 5 The black arrow is located between the lowest first air guide section 210a and the second lowest first air guide section 210b. Another part of the airflow will continue to flow upward through the first air guide interval 300 between the second lowest first air guide section 210b and the central column 100, and continue to send air forward in the same process as the airflow process described above, until the airflow moves to the position of the highest first air guide section, completing the entire forward air delivery process.

[0048] In the above process, by setting the first air-guiding interval 300 between each first air guide 210 and the central column 100 to gradually decrease along the first direction, that is, making the first air-guiding interval 300 larger closer to the fan outlet 032 and smaller further away from the fan outlet 032, on the one hand, it can ensure that when the airflow is blown out of the fan outlet 032 and flows along the first direction, the first air-guiding interval 300 near the fan outlet 032 has a larger flow area, which is beneficial to guiding the airflow away from the fan outlet 032. This ensures the airflow volume at locations far from the fan outlet 032. On the other hand, a conical airflow channel can be formed between multiple first air guide sections 210 and the central column 100. The large-diameter end of the conical airflow channel is close to the fan outlet 032, while the small-diameter end is far from the fan outlet 032. By utilizing the gradual reduction of the flow area during airflow, the airflow velocity can be increased, thereby increasing the airflow volume and velocity at the farthest first air guide section 210. This ensures the forward airflow volume at locations far from the fan outlet 032, thereby improving the uniformity of the vertical airflow during forward airflow.

[0049] In this embodiment, a first air-guiding interval 300 is formed between each first air guide 210 and the central column 100, so that the airflow blown out by the mixed flow fan 030 can be divided into multiple segments as it flows along the outer surface of the central column 100. That is, whenever the airflow passes upward through a first air-guiding interval 300, a portion of it will flow forward between the first air guide 210 used to form the first air-guiding interval 300 and the upper first air guide 210, thereby obtaining multiple segments of airflow distributed in the vertical direction, so that airflow is blown out from each position of the air outlet 022 in the vertical direction, to ensure the uniformity of air supply.

[0050] In this embodiment, the fan outlet 032 faces upwards, therefore the aforementioned "direction of fan outlet 032" is vertically upwards, i.e. Figure 7 The first direction shown.

[0051] Please continue to refer to Figure 5 In this embodiment, the air guiding device 010 may further include a second air guiding part 220, which extends radially outward along the central column 100. The second air guiding part 220 extends obliquely in a second direction, which is opposite to the first direction.

[0052] For the air guide device 010 provided in this embodiment, since it is installed above the mixed-flow fan 030, and the first direction is from bottom to top, the second air guide section 220 is in an inverted position in this state. During the operation of the air conditioner unit, the airflow blown out from the fan outlet 032 flows upward. When this part of the airflow reaches the position of the second air guide section 220, the airflow is compressed under the action of the second air guide section 220. Under the action of airflow inertia, this part of the airflow will flow forward along the slope of the second air guide section 220 to the position of the first air guide section 210, referring to... Figure 5 The green arrow in the middle guides the airflow to the front of the air conditioning unit via the first air guide section 210.

[0053] The aforementioned second air guide 220 can guide the airflow at the rear, allowing the airflow at the rear to be guided forward by the first air guide 210, reducing airflow loss and thus ensuring the forward airflow volume.

[0054] In this embodiment, "first direction" and "second direction" can be referred to as Figure 5 As indicated by the corresponding arrow.

[0055] In this embodiment, both the first air guide 210 and the second air guide 220 are fixedly arranged relative to the central column 100.

[0056] Figure 6 This is a schematic diagram showing the structure of the air guide device 010 provided in this embodiment located above the mixed-flow fan 030. Please continue to refer to... Figure 4 and Figure 5 and combined Figure 6 In this embodiment, a second air-guiding interval 400 is formed between the second air-guiding section 220 and the central column 100, and the second air-guiding interval 400 is connected to the first air-guiding interval 300.

[0057] By forming a second air-guiding interval 400 that communicates with the first air-guiding interval 300 between the second air-guiding section 220 and the central column 100, the airflow blown out from the fan outlet 032, when flowing upward to the position of the second air-guiding section 220, will have a portion directly guided by the second air-guiding section 220 to the lower surface of the first air-guiding section 210 for outlet, while another portion, guided by the second air-guiding section 220, will pass upward through the second air-guiding interval 400 and be further sent forward through the channel formed between the two adjacent first air-guiding sections 210. During this process, the airflow flowing through the second air-guiding interval 400 to the space between the two adjacent first air-guiding sections 210 will be sent forward under the guidance of the upper first air-guiding section 210.

[0058] By using the above settings, the air volume in the area between two adjacent first air guide sections 210 can be increased, avoiding excessive concentration of airflow on the lower surface of the first air guide section 210, thereby further improving the uniformity of air supply.

[0059] Please continue to refer to Figures 4 to 6 In this embodiment, a plurality of annular blades 200 are fixedly fitted around the outer periphery of the central column 100. The plurality of annular blades 200 are arranged at intervals along the first direction. The annular blades 200 form a first air guide section 210 near the front of the air conditioner unit and a second air guide section 220 near the rear of the air conditioner unit.

[0060] This design, which utilizes the two ends of the annular blade 200 to form the first air guide section 210 and the second air guide section 220 respectively, allows the first air guide section 210 and the second air guide section 220 to be formed in the same component. During assembly, the first air guide section 210 and the second air guide section 220 can be assembled simultaneously simply by installing the annular blade 200 together with the central column 100, resulting in high efficiency.

[0061] In addition, by connecting the annular blades 200 to the central column 100, the relative fixation of the annular blades 200 and the central column 100 is achieved, making the air guide device 010 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.

[0062] Now through Figure 5 The working principle of the air guide device 010 in this embodiment will be explained. Taking the flow of air between the lower annular blade 200a and the upper annular blade 200b as an example, when the airflow blown by 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 air guide section 210 of the lower annular blade 200a towards the front of the air conditioning unit, thereby achieving forward air delivery. (Refer to...) Figure 5 As indicated by the black arrow in the middle. On the other hand, under the action of the second air guide 220 of the lower annular blade 200a, the airflow is compressed. A portion of the airflow compressed by the second air guide 220 can flow upwards through the second air intake gap 400 to above the lower annular blade 200a, and further guided to the front of the air conditioning unit by the action of the first air guide 210 of the upper annular blade 200b. (Refer to...) Figure 5 The blue arrow indicates that another portion of the airflow, compressed by the second guide vane 220, is blocked by the lower annular blade 200a and will not pass through the second air intake gap 400. This portion of the airflow will then flow forward along the lower surface of the lower annular blade 200a to the first guide vane 210 of the lower annular blade 200a, where it will be guided forward and discharged. (Refer to...) Figure 5 The green arrow indicates this. Furthermore, during the above process, the airflow blown from the fan outlet 032 will also flow upwards along the outer surface of the central column 100, guiding the airflow to a position away from the fan outlet 032, as shown in the reference. Figure 5 As shown by the red arrow, when the airflow flowing upwards through the first air intake gap 300 and reaches above the lower annular blade 200a, part of the airflow will flow along the first air guide section 210 of the upper annular blade 200b, while the other part of the airflow will continue to flow upwards from the first air intake gap 300 between the upper annular blade 200b and the central column 100.

[0063] Figure 7 This is a longitudinal cross-sectional view of the air guide device 010 provided in this embodiment. Figure 7 As shown, in this embodiment, along the first direction, the angle between the first air guide portion 210 and the radial section of the central column 100 gradually increases. That is, in this air guide device 010, along the upward direction, the angle between the first air guide portion 210 of the annular blade 200 and the horizontal plane gradually increases.

[0064] The angle between the first air guide section 210 and the radial section of the central column 100 can be determined by... Figure 7 In this context, β1 represents the radial section of the central column 100, which is parallel to the horizontal plane.

[0065] By employing the above-described configuration, abrupt changes in the airflow angle between the lowest and highest first air guide sections 210 can be avoided. This allows the angle at which the first air guide section 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 section 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 section 210 has a larger angle relative to the horizontal plane, which helps increase the outlet height of the upper airflow, facilitating wide-angle airflow.

[0066] Please continue to refer to Figure 7 In this embodiment, along the first direction, the angle between the second air guide 220 and the radial section of the central column 100 gradually increases.

[0067] The angle between the second air guide section 220 and the radial section of the central column 100 can be determined by... Figure 7 It is represented by β2 in the equation.

[0068] By employing the above-described configuration, abrupt changes in the airflow angle between the lowermost and uppermost second air guide sections 220 can be avoided. This allows the angle at which the second air guide section 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 section 220 has a smaller angle relative to the horizontal plane, which helps increase the airflow delivery distance at the bottom. Conversely, the airflow guided by the uppermost second air guide section 220 has a larger angle relative to the horizontal plane, which helps increase the airflow outlet height at the top, thereby facilitating wide-angle airflow delivery.

[0069] In this embodiment, the surfaces of both the first air guide 210 and the second air guide 220 facing the airflow outlet can be concave arc surfaces. This arrangement can converge the airflow to increase the air delivery distance.

[0070] Please continue to refer to Figure 4 and Figure 6 In this embodiment, the first air guide 210 has a first connecting hole 230, and the first connector can pass through the first connecting hole 230 and be fastened to the central column 100; the second air guide 220 has a second connecting hole 240, and the second connector can pass through the second connecting hole 240 and be fastened to the central column 100.

[0071] 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 230 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 240 and be fixedly connected to the central column 100, so as to fix the annular blade 200 on the central column 100.

[0072] 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 210 and the second air guide 220, it can increase the number of fixing points and improve connection reliability.

[0073] Specifically, the first connecting hole 230 and the second connecting hole 240 are open holes. Correspondingly, a first screw hole opposite to the first connecting hole 230 and a second screw hole opposite to the second connecting hole 240 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 230 and screw it into the first screw hole, and by using the second connector to pass through the second connecting hole 240 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.

[0074] 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.

[0075] In this embodiment, both the first connecting hole 230 and the second connecting hole 240 are countersunk holes.

[0076] This configuration allows the first connector located in the first connection hole 230 to be hidden inside the first connection hole 230, preventing the first connector from protruding from the first air guide 210 and thus reducing the resistance to the airflow passing through the first air guide 210; while the second connector located in the second connection hole 240 is hidden inside the second connection hole 240, preventing the second connector from protruding from the second air guide 220 and thus reducing the resistance to the airflow passing through the second air guide 220.

[0077] Please continue to refer to Figure 5 and Figure 7 In this embodiment, the central column 100 may include a straight cylindrical section 110 and a guide section 120 arranged sequentially along a first direction. Each annular blade 200 is fitted and fixed to the straight cylindrical section 110. The guide section 120 is provided with an inclined guide surface 121 near the front of the air conditioner unit. The inclined guide surface 121 extends radially outward along the central column 100, inclined in the 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 section.

[0078] 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 first air-guiding interval 300 and a second air-guiding interval 400 that run vertically through the air, so as to facilitate the upward flow of the airflow blown by the mixed flow fan 030, thereby ensuring the uniformity of the 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 to blow it forward, so as to avoid the loss of air volume caused by the airflow continuing to flow upward.

[0079] Please continue to refer to Figure 6 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.

[0080] 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.

[0081] 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.

[0082] Please continue to refer to Figure 7 In this embodiment, the central column 100 is a hollow column.

[0083] 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.

[0084] Please continue to refer to Figure 4 , Figure 5 and Figure 7 In this embodiment, the air guiding device 010 may also include a reinforcing structure 500, and 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 500.

[0085] The aforementioned reinforcement structure 500 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.

[0086] Please continue to refer to Figure 5 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 500 is also provided between the lowermost annular blade 200 and the support cylinder 070.

[0087] By also providing a reinforcing structure 500 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 500, so that the support cylinder 070 can be used as the supporting foundation of the air guide device 010, thereby further improving the structural stability of the bottom annular blade 200.

[0088] 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.

[0089] 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.

[0090] In the above embodiments, descriptions of directions such as "up", "down", and "side" are based on the accompanying drawings.

[0091] 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, It includes a central column (100) extending along a first direction and a plurality of first air guides (210) spaced apart along the axial direction of the central column (100), the first direction being the direction of the fan outlet (032); the first air guides (210) extend obliquely outward along the radial direction of the central column (100); a first air guide interval (300) is formed between the first air guides (210) and the central column (100), and the first air guide interval (300) formed between each of the first air guides (210) and the central column (100) gradually decreases along the first direction.

2. The air guiding device according to claim 1, characterized in that, The air guiding device further includes a second air guiding part (220) extending radially outward along the central column (100). The second air guiding part (220) extends obliquely in a second direction, which is opposite to the first direction.

3. The air guiding device according to claim 2, characterized in that, A second air guide section (220) and the central column (100) form a second air guide interval (400), and the second air guide interval (400) is connected to the first air guide interval (300).

4. The air guiding device according to claim 2, characterized in that, The outer periphery of the central column (100) is fitted with a plurality of annular blades (200), which are arranged at intervals along the first direction. The annular blades (200) form the first air guide (210) at the front position and the annular blades (200) form the second air guide (220) at the rear position.

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

6. The air guiding device according to claim 2, characterized in that, The first air guide (210) has a first connecting hole (230), and the first connector can pass through the first connecting hole (230) and be fastened to the central column (100); the second air guide (220) has a second connecting hole (240), and the second connector can pass through the second connecting hole (240) and be fastened to the central column (100).

7. The air guiding device according to claim 4, characterized in that, The air guiding device also includes a reinforcing structure (500), in which at least two of the annular blades (200) closest to the fan outlet (032) are fixedly connected by the reinforcing structure (500).

8. The air guiding device according to claim 4, characterized in that, The central column (100) includes a straight cylindrical section (110) and a guide section (120) arranged sequentially along the first direction, and each of the annular blades (200) is fitted and fixed to the straight cylindrical section (110); the guide section (120) is provided with an inclined guide surface (121) near the front of the air conditioner cabinet, extending radially outward along the central column (100), and the inclined guide surface (121) extends inclinedly toward the first direction.

9. The air guiding device according to any one of claims 1-6, characterized in that, The outer circumferential surface of the central column (100) is any one or a combination of two of the following: a circular arc surface and a near-circular arc surface; the central column (100) is a hollow column.

10. A cabinet air conditioner, characterized in that, The unit 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 both disposed inside the housing (020), and the first air guiding part (210) of the air guiding device is opposite to the fan outlet (032). The housing (020) has an air inlet (021) communicating with the fan inlet (031) and an air outlet (022) opposite to the first air guiding part (210), and the air outlet (022) faces the front of the air conditioning unit.

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