Able to boost the air duct assembly and air supply device

By using an arc-shaped and inwardly inclined air guide plate design and a multi-stage airflow structure, the problem of poor pressurization effect of traditional air duct components is solved, achieving efficient air delivery and a compact structure.

CN224680944UActive Publication Date: 2026-08-25HUNAN DOUHE INTELLIGENT APPLIANCE CO LTD
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Patent Information

Application Number
CN202521654030.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-05
Publication Date
2026-08-25
Estimated Expiration
2035-08-05

AI Technical Summary

Technical Problem

Traditional air duct components suffer from high fluid resistance, significant pressure loss, limited pressurization effect, and complex designs that lead to increased size, higher costs, and greater maintenance difficulty.

Method used

The design employs arc-shaped and inwardly inclined air guide plates, combined with a multi-stage airflow guiding structure, including an arc-shaped first air guide plate, an inwardly inclined second air guide plate, and circular third and fourth air guide plates, to form multi-stage airflow guidance, reduce turbulence and energy loss, and increase wind pressure.

Benefits of technology

It achieves high-efficiency pressurization, uniform airflow distribution, improved air delivery efficiency, compact structure, reduced manufacturing costs and assembly difficulty, and is suitable for space-constrained environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of fluid delivery discloses the air duct subassembly of being able to pressurization, including air inlet, air supply mechanism, air supply mechanism is located air inlet one side, first air guide mechanism, first air guide mechanism is located air supply mechanism far from air inlet one side, first air guide mechanism far from air supply mechanism one side is equipped with air outlet, and first air guide mechanism includes outer frame and first air guide assembly, first air guide assembly includes a plurality of first air guide board and second air guide board, a plurality of first air guide board and second air guide board are all arc shape interval arrangement in the inner side of outer frame, and first air guide board is connected with the inner side of outer frame, and second air guide board is in the form of inner buckle inclination, and is located first air guide board far from the one side of outer frame, after the airflow enters from air inlet, accelerates through air supply mechanism, enters first air guide mechanism, passes through outer frame, flows along the arc surface of first air guide board and second air guide board, increases fluid contact area, and forms negative pressure effect in the flowing process, to improve the air pressure of air outlet.
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Description

Technical Field

[0001] This utility model relates to the field of fluid transport technology, and in particular to a pressurized air duct assembly and air supply device. Background Technology

[0002] In the field of modern ventilation and fluid transport, the pressurization effect of duct components directly affects the air supply efficiency and performance of the system. Traditional duct components typically employ simple airflow guiding structures or straight-plate airflow guide designs. While these can achieve basic airflow guidance, they suffer from problems such as high fluid resistance, significant pressure loss, and limited pressurization effect.

[0003] In existing technologies, some duct components attempt to optimize airflow by increasing the number of air guide vanes. However, due to unreasonable vane structure design, airflow is prone to turbulence or separation, which actually reduces the pressurization effect. In addition, while some designs using complex pressurization structures can increase air pressure, they lead to larger duct volume, higher manufacturing costs, and increased maintenance difficulty. Utility Model Content

[0004] To address at least one problem existing in the prior art, according to one aspect of the present invention, a pressurized air duct assembly is provided, comprising:

[0005] Air inlet;

[0006] An air supply mechanism is located on one side of the air inlet;

[0007] A first air guide mechanism is located on the side of the air supply mechanism away from the air inlet, and an air outlet is provided on the side of the first air guide mechanism away from the air supply mechanism. The first air guide mechanism includes an outer frame and a first air guide assembly.

[0008] The first air guide assembly includes a plurality of first air guide plates and second air guide plates. The plurality of first air guide plates and second air guide plates are arranged in an arc shape at intervals on the inner side of the outer frame. The first air guide plates are connected to the inner side of the outer frame. The second air guide plates are inwardly inclined and are located on the side of the first air guide plates away from the outer frame.

[0009] In some embodiments, the first air guiding mechanism further includes a second air guiding assembly, which includes a third air guiding plate and a fourth air guiding plate, the third air guiding plate and the fourth air guiding plate being arranged in a circular shape inside the outer frame.

[0010] In some embodiments, the third air guide plate is disposed between the first air guide plate and the second air guide plate, the end of the first air guide plate away from the outer frame is connected to the outer side of the third air guide plate, and the second air guide plate is connected to the inner side of the third air guide plate.

[0011] In some embodiments, the fourth air guide plate is connected to the end of the second air guide plate away from the third air guide plate, and the second air guide plate is evenly spaced and inclined between the third air guide plate and the fourth air guide plate.

[0012] In some embodiments, the third air guide plate and the fourth air guide plate are arranged in concentric circles.

[0013] In some embodiments, a heating element is also included, which is disposed on the side of the first air guide mechanism away from the air supply mechanism, and a plurality of mounting plates are provided extending from the bottom of the heating element.

[0014] In some embodiments, the outer frame extends toward the heating element from the side away from the air supply mechanism and has an installation space inside it. The bottom of the outer frame below the installation space has a plurality of installation openings. The heating element is fitted into the installation space, and a plurality of the mounting plates are fitted into a plurality of the installation openings.

[0015] In some embodiments, a second air guiding mechanism is also included. The second air guiding mechanism is located on the side of the first air guiding mechanism away from the air supply mechanism. The second air guiding mechanism includes an air guiding bracket and a plurality of fifth air guiding plates. The air outlet is opened in the middle of the air guiding bracket. The plurality of fifth air guiding plates are sequentially separated from top to bottom and are arranged downwardly within the air outlet.

[0016] In some embodiments, the downward tilt angle of the fifth air guide plate is set to 15°.

[0017] According to another aspect of the present invention, an air supply device is provided, comprising: a housing; and the pressurized air duct assembly described above, wherein the pressurized air duct assembly is disposed within the housing.

[0018] In summary, this utility model provides a pressurized air duct component and air supply device, which can improve the pressurization performance and air supply efficiency of the air duct, and has the following beneficial effects:

[0019] (1) High-efficiency pressurization: The first air guide mechanism is equipped with several arc-shaped first air guide plates and second air guide plates, which are arranged at intervals. The air can flow along the arc-shaped surfaces of the first air guide plates and second air guide plates, which increases the fluid contact area and forms a negative pressure effect in the cavity, thereby effectively increasing the air pressure and achieving a stronger air delivery effect.

[0020] (2) Optimize airflow guidance: The second air guide plate is set in an inward inclined shape, which can further guide the airflow to concentrate towards the air outlet, reduce airflow diffusion and energy loss, and ensure more concentrated and stable airflow output; the third air guide plate is located between the first and second air guide plates and is connected to them, so that the airflow can transition smoothly and avoid energy loss caused by sudden turning or collision; the fourth air guide plate is connected to the second air guide plate to form a continuous guiding structure, further reducing turbulence and improving airflow stability;

[0021] (3) Multi-stage airflow guidance: The third and fourth airflow guide plates of the second airflow guide assembly are arranged in a circular shape, and together with the first and second airflow guide plates, they form a multi-stage airflow guidance structure, so that the airflow undergoes multiple accelerations and convergences during the flow process, further increasing the wind pressure, enhancing the pressurization effect, and ensuring that the airflow is more concentrated and powerful.

[0022] (4) Uniform air supply: The second air guide plate is evenly spaced and inclined between the third and fourth air guide plates, so that the airflow distribution is more uniform, avoiding local high pressure or low pressure areas, thereby improving the overall air supply efficiency.

[0023] (5) Compact structure and high space utilization: The design of the air guide plate and the outer frame is reasonable, and the overall structure is compact. It can achieve good pressurization effect without complicated pressurization device, which reduces manufacturing cost and assembly difficulty. The circular layout of the second air guide component is combined with the arc design of the first air guide component, which makes full use of the internal space of the air duct and achieves a more efficient pressurization effect within a limited volume, which is suitable for installation environments with limited space. Attached Figure Description

[0024] Figure 1 One of the three-dimensional views of the air supply device;

[0025] Figure 2 This is the second perspective view of the air supply device;

[0026] Figure 3 A schematic diagram of a pressurized air duct assembly;

[0027] Figure 4 A schematic diagram of the first air guide mechanism of the pressurized air duct assembly;

[0028] Figure 5 One of the structural schematic diagrams of a pressurized air duct assembly;

[0029] Figure 6 This is the second partial structural diagram of a pressurized air duct assembly.

[0030] The correspondence between the reference numerals and the component names is as follows:

[0031] 1. Air inlet;

[0032] 2. Air supply mechanism; 21. Drive motor; 22. Fan wheel;

[0033] 3. First air guide mechanism; 31. Outer frame; 311. Installation space; 312. Installation port; 32. First air guide assembly; 321. First air guide plate; 322. Second air guide plate; 33. Second air guide assembly; 331. Third air guide plate; 332. Fourth air guide plate;

[0034] 4. Heating element; 41. Mounting plate;

[0035] 5. Second air guide mechanism; 51. Air guide bracket; 511. Air outlet; 512. Isolation net; 52. Fifth air guide plate;

[0036] 6. Air supply device; 61. Outer casing. Detailed Implementation

[0037] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0038] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0039] Some embodiments of this utility model are described below with reference to the accompanying drawings.

[0040] like Figures 1 to 6 As shown, this embodiment discloses a pressurized air duct assembly, including:

[0041] Air inlet 1 is used to introduce airflow;

[0042] Air supply mechanism 2 is located on one side of air inlet 1 and is used to provide airflow power;

[0043] The first air guide mechanism 3 is located on the side of the air supply mechanism 2 away from the air inlet 1. The first air guide mechanism 3 is provided with an air outlet 511 on the side away from the air supply mechanism 2. The first air guide mechanism 3 includes an outer frame 31 and a first air guide assembly 32.

[0044] The first air guide assembly 32 includes a plurality of first air guide plates 321 and second air guide plates 322. The plurality of first air guide plates 321 and second air guide plates 322 are arranged in an arc shape at intervals on the inner side of the outer frame 31. The first air guide plates 321 are connected to the inner side of the outer frame 31. The second air guide plates 322 are inwardly inclined and are located on the side of the first air guide plates 321 away from the outer frame 31.

[0045] After the airflow enters from the air inlet 1, it is accelerated by the air supply mechanism 2, and then enters the first air guide mechanism 3. It passes through the outer frame 31 and flows along the arc-shaped surfaces of the first air guide plate 321 and the second air guide plate 322, increasing the fluid contact area and forming a negative pressure effect during the flow, thereby increasing the air pressure at the air outlet 511.

[0046] The aforementioned pressurized air duct assembly, through the arc-shaped first air guide mechanism 3, with the first air guide plate 321 and the second air guide plate 322 being spaced apart, makes the airflow distribution more uniform, avoids local high-pressure or low-pressure areas, and thus improves the overall air supply efficiency; the second air guide plate 322 is set in an inwardly inclined shape, which can further guide the airflow to concentrate towards the air outlet 511, reduce airflow diffusion and energy loss, and ensure a more concentrated and stable airflow output; the first air guide plate 321 and the second air guide plate 322 form a multi-stage flow guiding structure, so that the airflow undergoes multiple accelerations and convergences during the flow process, further increasing the wind pressure, enhancing the pressurization effect, and ensuring that the heating air supply is more concentrated and powerful.

[0047] like Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further discloses that: the first air guiding mechanism 3 also includes a second air guiding assembly 33, which includes a third air guiding plate 331 and a fourth air guiding plate 332. The third air guiding plate 331 and the fourth air guiding plate 332 are circularly arranged inside the outer frame 31. The third air guiding plate 331 is disposed between the first air guiding plate 321 and the second air guiding plate 322. The end of the first air guiding plate 321 away from the outer frame 31 is connected to the outer side of the third air guiding plate 331, and the second air guiding plate 322 is connected to the inner side of the third air guiding plate 331. The fourth air guiding plate 332 is connected to the end of the second air guiding plate 322 away from the third air guiding plate 331. The second air guiding plates 322 are evenly spaced and inclinedly disposed between the third air guiding plate 331 and the fourth air guiding plate 332.

[0048] The third guide plate 331 is located between and connected to the first guide plate 321 and the second guide plate 322, allowing the airflow to transition smoothly and avoiding energy loss due to sudden turning or collision. The fourth guide plate 332 is connected to the second guide plate 322, forming a continuous guiding structure, which further reduces turbulence and improves airflow stability. The third guide plate 331 and the fourth guide plate 332 of the second guide assembly 33 are arranged in a circular shape and form a multi-stage guiding structure with the first guide plate 321 and the second guide plate 322, so that the airflow undergoes multiple accelerations and convergences during the flow process, further increasing the wind pressure, enhancing the pressurization effect, and ensuring that the airflow is more concentrated and powerful.

[0049] The design of the air guide plate and the outer frame 31 is reasonable, and the overall structure is compact. It can achieve good pressurization effect without complicated pressurization device, which reduces manufacturing cost and assembly difficulty. The circular layout of the second air guide component 33 and the arc design of the first air guide component 32 make full use of the internal space of the air duct and achieve a more efficient pressurization effect within a limited volume, which is suitable for installation environments with limited space.

[0050] like Figure 4 As shown, in addition to the features of the above embodiments, this embodiment further discloses that: the third air guide plate 331 and the fourth air guide plate 332 are arranged in concentric circles, so that the airflow forms a spiral flow under the action of the multi-layer air guide plates, further reducing turbulence and improving pressurization efficiency.

[0051] like Figure 5 As shown, in addition to the features of the above embodiments, this embodiment further discloses that: it also includes a heating element 4, which is disposed on the side of the first air guiding mechanism 3 away from the air supply mechanism 2, and a plurality of mounting plates 41 are provided extending from the bottom of the heating element 4. The outer frame 31 extends towards the heating element 4 from the side away from the air supply mechanism 2 and has an installation space 311 on its inner side. A plurality of installation openings 312 are opened at the bottom of the outer frame 31 below the installation space 311. The heating element 4 is fitted into the installation space 311, and the plurality of mounting plates 41 are fitted into the plurality of installation openings 312.

[0052] Specifically, the heating element 4 is a PTC heating element. The heating element 4 is installed in the installation space 311, and the mounting plate 41 at the bottom of the heating element 4 is embedded in the installation port 312, so as to achieve a stable installation of the heating element 4 and the first air guide mechanism 3, and further improve the compactness of the overall structure.

[0053] After being pressurized by the first air guide mechanism 3, the airflow flows to the heating element 4 for heating, and then outputs warm air from the air outlet 511 to achieve high-pressure heating and improve the efficiency of hot air delivery.

[0054] like Figure 6As shown, in addition to the features of the above embodiments, this embodiment further discloses that it also includes a second air guiding mechanism 5. The second air guiding mechanism 5 is disposed on the side of the first air guiding mechanism 3 away from the air supply mechanism 2. The second air guiding mechanism 5 includes an air guiding bracket 51 and a plurality of fifth air guiding plates 52. An air outlet 511 is opened in the middle of the air guiding bracket 51. The plurality of fifth air guiding plates 52 are sequentially separated from top to bottom and are inclined downward within the air outlet 511. The downward inclination angle of the fifth air guiding plates 52 is set to 15°.

[0055] When the airflow flows out of the air outlet 511, it can flow along the surface of the downward-sloping fifth air guide plate 52, so that the airflow can flow to a greater distance and achieve heating for a more distant area.

[0056] like Figure 3 As shown, in addition to the features of the above embodiments, this embodiment further discloses that: the air supply mechanism 2 includes a drive motor 21 and a fan wheel 22. The drive motor 21 is installed in the middle of the fan wheel 22 and is used to drive the fan wheel 22 to rotate. By driving the fan wheel 22 to rotate through the drive motor 21, the airflow can be delivered.

[0057] like Figure 2 As shown, in addition to the features of the above embodiments, this embodiment further discloses that: an isolation net 512 is installed on the end face of the air guide bracket 51 away from the first air guide mechanism 3, which can prevent external debris (such as fingers, tools, insects, etc.) from accidentally entering the air duct assembly, avoiding damage to the internal air guide plate or air supply mechanism 2, and eliminating the safety hazard of users accidentally touching high-speed airflow or rotating parts. At the same time, the isolation net 512 can initially filter larger particles such as hair and dust in the air, protecting internal precision components (such as heating elements and fan blades) from contamination; the mesh structure of the isolation net 512 can also disperse airflow, reduce local turbulence, make the airflow more uniform and stable, and avoid the discomfort of direct blowing; through the buffering of airflow by the mesh, the noise generated by high-speed airflow can be effectively reduced, improving the user experience.

[0058] like Figure 1-2 As shown, in another embodiment of the present invention, an air supply device 6 is also provided, including: a housing 61; and the aforementioned pressurized air duct assembly, which is disposed inside the housing 61 to deliver air to the user.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A pressurized air duct assembly, characterized in that, include: Air inlet (1); An air supply mechanism (2) is provided on one side of the air inlet (1); The first air guide mechanism (3) is located on the side of the air supply mechanism (2) away from the air inlet (1). The first air guide mechanism (3) is provided with an air outlet (511) on the side away from the air supply mechanism (2). The first air guide mechanism (3) includes an outer frame (31) and a first air guide assembly (32). The first air guide assembly (32) includes a plurality of first air guide plates (321) and second air guide plates (322). The plurality of first air guide plates (321) and second air guide plates (322) are arranged in an arc shape at intervals on the inner side of the outer frame (31). The first air guide plates (321) are connected to the inner side of the outer frame (31). The second air guide plates (322) are inwardly inclined and are located on the side of the first air guide plates (321) away from the outer frame (31).

2. The pressurized air duct assembly according to claim 1, characterized in that, The first air guiding mechanism (3) further includes a second air guiding component (33), which includes a third air guiding plate (331) and a fourth air guiding plate (332). The third air guiding plate (331) and the fourth air guiding plate (332) are arranged in a circular shape inside the outer frame (31).

3. The pressurized air duct assembly according to claim 2, characterized in that, The third air guide plate (331) is disposed between the first air guide plate (321) and the second air guide plate (322). The first air guide plate (321) is connected to the outer side of the third air guide plate (331) at one end away from the outer frame (31), and the second air guide plate (322) is connected to the inner side of the third air guide plate (331).

4. The pressurized air duct assembly according to claim 2, characterized in that, The fourth air guide plate (332) is connected to the end of the second air guide plate (322) away from the third air guide plate (331). The second air guide plate (322) is evenly spaced and inclined between the third air guide plate (331) and the fourth air guide plate (332).

5. The pressurized air duct assembly according to claim 2, characterized in that, The third air guide plate (331) and the fourth air guide plate (332) are arranged in concentric circles.

6. The pressurized air duct assembly according to any one of claims 1-5, characterized in that, It also includes a heating element (4), which is located on the side of the first air guide mechanism (3) away from the air supply mechanism (2), and a plurality of mounting plates (41) are provided on the bottom of the heating element (4).

7. The pressurized air duct assembly according to claim 6, characterized in that, The outer frame (31) extends from the side away from the air supply mechanism (2) toward the heating element (4) and has an installation space (311) on its inner side. The bottom of the outer frame (31) below the installation space (311) has several installation openings (312). The heating element (4) is fitted into the installation space (311), and several mounting plates (41) are fitted into several installation openings (312).

8. The pressurized air duct assembly according to any one of claims 1-5, characterized in that, It also includes a second air guide mechanism (5), which is located on the side of the first air guide mechanism (3) away from the air supply mechanism (2). The second air guide mechanism (5) includes an air guide bracket (51) and a plurality of fifth air guide plates (52). The air outlet (511) is opened in the middle of the air guide bracket (51), and the plurality of fifth air guide plates (52) are arranged in the air outlet (511) from top to bottom and inclined downward.

9. The pressurized air duct assembly according to claim 8, characterized in that, The downward tilt angle of the fifth air guide plate (52) is set to 15°.

10. An air supply device, characterized in that, include: Outer shell (61); The pressurized air duct assembly as described in any one of claims 1-9, wherein the pressurized air duct assembly is disposed within the housing (61).