Staggered air duct mechanism

Abstract

The utility model discloses a staggered air duct mechanism which comprises an air duct assembly, and the air duct assembly comprises a first air duct and a second air duct arranged below the first air duct. An air inlet is formed in one end of the air duct assembly, arc-shaped baffles are arranged in the air duct assembly at intervals, and an air outlet is formed in one side wall of the air duct assembly and located below the arc-shaped baffles; the arc-shaped baffles comprise the first baffle, the second baffle, the third baffle and the fourth baffle, and the third baffle and the fourth baffle are arranged in a staggered mode. A plurality of arc-shaped baffles are designed at proper positions of the air duct, a certain requirement is made for the dip angle and the covering distance of each arc-shaped baffle, and the staggered design of the third baffle and the fourth baffle is explained, so that vortexes are not prone to being generated in the air duct system, fluid flows evenly, aerodynamic noise is small, the wind resistance of the whole air duct is small, and the service life of the whole air duct is prolonged. Ideal design air volume of the air outlet can be obtained by providing lower static pressure by the fan.

Description

Technical Field

[0001] This utility model relates to the field of air duct technology, specifically to a misaligned air duct mechanism. Background Technology

[0002] Conventional air ducts adjust airflow at different outlets based on outlet area. This method makes outlet direction difficult to control, easily generates vortices within the duct, resulting in higher noise levels, and also increases overall duct resistance, requiring the fan to provide higher static pressure to achieve the desired design airflow. (See below) Figure 1 As shown, the conventional air duct has air intake on one side and the air outlet uses a variable air outlet area to achieve uniform air volume. However, this design is more complicated when the air volume needs to be changed later. If the air volume needs to be changed later, but the air outlet has been determined, it is not easy to replace it.

[0003] Currently, the direction of the air outlet is not easy to control, and eddies are easily generated inside the air duct, resulting in greater noise. In addition, the overall air resistance of the air duct is relatively high, requiring the fan to provide higher static pressure. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to solve the problems of the current air outlet direction being difficult to control and the easy generation of vortices inside the air duct.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A misaligned air duct mechanism includes an air duct assembly, the air duct assembly including a first air duct and a second air duct disposed below the first air duct, wherein the first air duct is connected to the second air duct through a connecting pipe.

[0007] An air inlet is provided at one end of the air duct assembly, and arc-shaped baffles are provided at intervals inside the air duct assembly. An air outlet is provided on one side wall of the air duct assembly below the arc-shaped baffles.

[0008] The arc-shaped baffle includes a first baffle, a second baffle, a third baffle, and a fourth baffle, with the third baffle and the fourth baffle being arranged alternately.

[0009] This application designs several arc-shaped baffles at appropriate locations in the air duct, sets certain requirements for the inclination angle and coverage distance of each arc-shaped baffle, and explains the staggered design of the third and fourth baffles. This makes it less likely for eddies to be generated inside the air duct system, ensures uniform fluid flow, reduces aerodynamic noise, and minimizes the overall air resistance of the air duct. The ideal outlet air volume can be obtained by providing a lower static pressure from the fan.

[0010] As a further embodiment of this utility model, the length of the first baffle is less than that of the second baffle, the third baffle, and the fourth baffle.

[0011] As a further embodiment of this utility model, the width of the third baffle and the fourth baffle is smaller than that of the first baffle and the second baffle.

[0012] As a further aspect of this utility model: the angle between the line connecting the starting point to the ending point of the first baffle and the horizontal line of the corresponding air outlet is 30°±5°.

[0013] As a further aspect of this utility model: the length a of the first baffle covering the corresponding air outlet is less than the length b of the air outlet.

[0014] As a further embodiment of this utility model: the angle between the line connecting the starting point to the ending point of the second baffle, the third baffle, and the fourth baffle and the horizontal line of the corresponding air outlet is 20°±5°.

[0015] As a further embodiment of this utility model: the length 'a' of the second baffle, the third baffle, and the fourth baffle covering the corresponding air outlet is less than the length 'b' of the air outlet.

[0016] As a further embodiment of this utility model: the line connecting the inner edge of the third baffle and the inner edge of the fourth baffle is exactly a straight line.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This application designs several arc-shaped baffles at appropriate locations in the air duct, sets certain requirements for the inclination angle and coverage distance of each arc-shaped baffle, and explains the staggered design of the third and fourth baffles. This makes it less likely for eddies to be generated inside the air duct system, ensures uniform fluid flow, reduces aerodynamic noise, and minimizes the overall air resistance of the air duct. The ideal outlet air volume can be obtained by providing a lower static pressure from the fan. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the existing air duct structure;

[0020] Figure 2 This is a schematic diagram of the misaligned air duct mechanism according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the internal structure of the misaligned air duct mechanism according to an embodiment of the present utility model;

[0022] Figure 4 This is an embodiment of the present utility model. Figure 3 The front view;

[0023] Figure 5This is a top view of the second, third, and fourth baffles according to an embodiment of the present utility model;

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Air duct assembly; 11. Air inlet; 12. Air outlet; 13. First baffle; 14. Second baffle; 15. Third baffle; 151. Inner edge of the third baffle; 16. Fourth baffle; 161. Inner edge of the fourth baffle;

[0026] 2. Connect the pipes. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Reference Figure 2 A staggered air duct mechanism includes an air duct assembly 1, which includes a first air duct, a second air duct, and a connecting pipe 2. The first air duct is located above one end of the second air duct, and the tail end of the first air duct is connected to the head end of the second air duct through the connecting pipe 2, which is designed in an "L" shape. The first air duct, the second air duct, and the connecting pipe 2 can be integrally formed. An air inlet 11 is provided at the upper front end of the first air duct, through which air can enter the first air duct, the connecting pipe 2, and the second air duct. Several air outlets 12 are provided on the side walls of the first air duct and the second air duct, the number of which is determined according to the actual needs of the air duct and is not limited in this application.

[0029] Reference Figure 2 and Figure 3 Based on the analysis of airflow characteristics within the duct using fluid simulation software (Fluent), first baffles 13, second baffles 14, third baffles 15, and fourth baffles 16 are designed at appropriate positions on the inner walls of the first and second ducts. All four baffles are arc-shaped. An air outlet 12 is located on the side walls of the first and second ducts, below each baffle. By changing the airflow direction and speed, the airflow volume of each outlet 12 is made to meet the design requirements. Each baffle undergoes multiple rounds of iterative simulation design to intercept airflow and ensure that the distribution of air outlets 12 meets the requirements.

[0030] Reference Figure 4The length of the first baffle 13 is less than the lengths of the second baffle 14, the third baffle 15, and the fourth baffle 16. Specifically, the design of the first baffle 13 should meet the requirement that the angle between the line connecting the starting point to the ending point and the horizontal line of the corresponding air outlet 12 should be within 30°±5°. The length a of the first baffle 13 covering the corresponding air outlet 12 should be within 0.33b±5%, where b is the length of the air outlet 12. The first baffle 13 can be designed to have a certain curvature, which can appropriately reduce the system wind resistance.

[0031] Reference Figure 4 The widths of the third baffle 15 and the fourth baffle 16 are smaller than the widths of the first baffle 13 and the second baffle 14. The design of the second baffle 14, the third baffle 15 and the fourth baffle 16 should meet the requirement that the angle between the line connecting the starting point to the ending point and the horizontal line of the corresponding air outlet 12 should be within 20°±5°. The distance 'a' between the second baffle 14, the third baffle 15 and the fourth baffle 16 and the corresponding air outlet 12 should be within 0.65b±5%, where b is the length of the air outlet 12. The second baffle 14, the third baffle 15 and the fourth baffle 16 can be designed to have a certain curvature, which can appropriately reduce the system's air resistance.

[0032] Reference Figure 4 and Figure 5 The third baffle 15 and the fourth baffle 16 need to be staggered to ensure that the corresponding air outlets 12 receive appropriate airflow. The third baffle 15 intercepts the airflow from one side into the air outlet 12, while the other part flows into the duct from the other side. If the fourth baffle 16 is not designed to be staggered, it will not be able to intercept effective airflow to ensure that the corresponding air outlets receive appropriate airflow. The line connecting the inner edge 151 of the third baffle and the inner edge 161 of the fourth baffle should be exactly in a straight line. Partial overlap or gaps are allowed, but it is recommended that the overlap and gaps be designed to be within 10mm.

[0033] The specific operating principle of this application is as follows:

[0034] In use, air enters through the air inlet 11 and then enters the first air duct. Part of the air is then discharged from the air outlet 12 directly opposite the air inlet 11, while the other part flows along the first air duct into the air outlet 12 corresponding to the first baffle 13 and is discharged. The first baffle 13 is designed to ensure that the air volume at the outlet reaches the expected design value. The air discharged from the top of the first baffle 13 then enters the second air duct through the connecting pipe 2 and is discharged sequentially through the air outlets 12 corresponding to the second baffle 14, third baffle 15, and fourth baffle 16 inside the second air duct. During this process, the second baffle 14, third baffle 15, and fourth baffle 16 are designed to ensure that the air volume at the outlet reaches the expected design value.

[0035] The above-mentioned duct system is less prone to generating eddies, has uniform fluid flow, low aerodynamic noise, and low overall duct resistance. It requires the fan to provide low static pressure to achieve the ideal outlet air volume.

[0036] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A misaligned air duct mechanism, characterized in that, It includes a duct assembly (1), which includes a first duct and a second duct disposed below the first duct, wherein the first duct is connected to the second duct via a connecting pipe (2); An air inlet (11) is provided at one end of the air duct assembly (1), and an arc-shaped baffle is provided on the inner wall of the air duct assembly (1). An air outlet (12) is provided on one side wall of the air duct assembly (1) and below the arc-shaped baffle. The arc-shaped baffle includes a first baffle (13), a second baffle (14), a third baffle (15) and a fourth baffle (16), wherein the third baffle (15) and the fourth baffle (16) are arranged alternately.

2. The misaligned air duct mechanism according to claim 1, characterized in that: The length of the first baffle (13) is less than that of the second baffle (14), the third baffle (15) and the fourth baffle (16).

3. The misaligned air duct mechanism according to claim 2, characterized in that: The widths of the third baffle (15) and the fourth baffle (16) are smaller than those of the first baffle (13) and the second baffle (14).

4. The misaligned air duct mechanism according to claim 2, characterized in that: The angle between the line connecting the starting point to the ending point of the first baffle (13) and the horizontal line of the corresponding air outlet (12) is 30°±5°.

5. The misaligned air duct mechanism according to claim 4, characterized in that: The length a of the first baffle (13) covering the corresponding air outlet (12) is less than the length b of the air outlet (12).

6. The misaligned air duct mechanism according to claim 2, characterized in that: The angle between the line connecting the starting point to the ending point of the second baffle (14), the third baffle (15) and the fourth baffle (16) and the horizontal line of the corresponding air outlet (12) is 20°±5°.

7. The misaligned air duct mechanism according to claim 6, characterized in that: The length a of the second baffle (14), the third baffle (15) and the fourth baffle (16) covering the corresponding air outlet (12) is less than the length b of the air outlet (12).

8. The misaligned air duct mechanism according to claim 2, characterized in that: The line connecting the inner edge (151) of the third baffle (15) and the inner edge (161) of the fourth baffle (16) is exactly a straight line.

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