Air conditioner air duct capable of reducing air turbulence and noise

Abstract

The utility model relates to an air conditioner air duct capable of reducing air turbulence and noise, which comprises a plurality of first ventilation pipes, the plurality of first ventilation pipes are connected with one another, and the cross section of each first ventilation pipe is elliptical; regular tiny protrusions are arranged on the inner wall of the first ventilation pipeline. The air conditioner has the effect of reducing noise generated by air flow.

Description

Technical Field

[0001] This application relates to the field of air duct technology, and in particular to an air conditioning duct that reduces air turbulence and noise. Background Technology

[0002] Traditional air conditioning systems typically use rectangular or circular ducts. However, when using rectangular or circular ducts, if the airflow velocity is high, noise can easily be generated within the duct, especially at abrupt structural changes such as bends and T-shaped branches, which can affect the comfort of living or working. Utility Model Content

[0003] In order to reduce the noise generated by airflow, this application provides an air conditioning duct that reduces air turbulence and noise.

[0004] The air conditioning duct that reduces air turbulence and noise provided in this application adopts the following technical solution:

[0005] An air conditioning duct for reducing air turbulence and noise includes a plurality of first ventilation ducts, which are interconnected. The cross-section of the first ventilation duct is elliptical, and the inner wall of the first ventilation duct has regular micro-protrusions.

[0006] By adopting the above technical solution and using an elliptical cross-section duct design to optimize the airflow path, the airflow resistance and turbulence commonly found in traditional rectangular or circular ducts are effectively reduced. The inner wall of the first ventilation duct is formed with regular micro-protrusions through precision surface processing technology. These microstructures can effectively reduce the contact area between air and the inner wall surface, thereby reducing the friction coefficient, reducing turbulence and resistance of airflow in the duct, and thus reducing noise.

[0007] Optionally, a polyurethane foam block is provided at the corner of the first ventilation duct, the polyurethane foam block having a uniformly distributed porous structure.

[0008] By employing the above technical solution, the numerous evenly distributed openings effectively absorb and disperse vibrations caused by sudden changes in airflow velocity. These shock-absorbing and buffering structures are precisely positioned in areas with significant airflow impact, reducing noise propagation by absorbing vibrations and noise fluctuations in the airflow.

[0009] Optionally, a connecting pipe is provided between two adjacent first ventilation ducts. The connecting pipe is a corrugated pipe, and its two ends are fixed to the two first ventilation ducts respectively.

[0010] By adopting the above technical solution, a connecting pipe is installed between the two first ventilation ducts. The connecting pipe is a corrugated pipe, which allows the connecting pipe to be extended and adjusted to facilitate installation according to the actual site conditions.

[0011] Optionally, the outer peripheral wall of the first ventilation duct located at the air inlet end is provided with a plurality of air inlet pipes, the air inlet pipes are provided with a closing plate for opening and closing the air inlet pipes, and the first ventilation duct is provided with a driving component for driving the closing plate to open and close the air inlet pipes.

[0012] By adopting the above technical solution, the opening degree of each air intake pipe can be controlled by the closing plate, thereby precisely controlling the amount of airflow entering the room, which facilitates the control of the indoor temperature.

[0013] Optionally, the connecting pipe has straight pipe sections at both ends, the straight pipe sections are sleeved on the ends of the first ventilation duct, and clamps are provided at both ends of the connecting pipe, the clamps being tightened around the straight pipe sections.

[0014] By adopting the above technical solution, during installation, the straight pipe sections at both ends of the connecting pipe are fitted onto the first ventilation pipe, and then the straight pipe sections and the first ventilation pipe are fixed by clamps.

[0015] Optionally, rotating rods are fixedly connected to the peripheral walls on both sides of the closed plate. The rotating rods are rotatably connected to the air intake pipes. The driving assembly includes a first gear and a second gear. The first gear is rotatably connected to the first ventilation duct. Several second gears are provided and each corresponds to a certain number of air intake pipes. The second gears are coaxially arranged on one of the rotating rods of the closed plate.

[0016] By adopting the above technical solution, the first gear drives the second gear to rotate, which in turn drives the rotating rod to rotate, thereby controlling the rotation of the closing plate to control the opening degree of the intake pipe.

[0017] Optionally, the drive assembly further includes a first gear ring, a third gear, and a drive motor. The first gear ring is coaxially disposed on the back of the first gear, the drive motor is disposed in the first ventilation duct, and the third gear is disposed on the output shaft of the drive motor and meshes with the first gear ring.

[0018] By adopting the above technical solution, the drive motor drives the third gear to rotate, thereby driving the first gear ring to rotate, and thus controlling the rotation of the first gear.

[0019] In summary, this utility model has the following beneficial effects:

[0020] 1. By adopting an elliptical cross-section duct design, the airflow path is optimized, thereby effectively reducing the airflow resistance and turbulence common in traditional rectangular or circular ducts. The inner wall of the first ventilation duct is formed with regular micro-protrusions through precision surface processing technology. These microstructures can effectively reduce the contact area between air and the inner wall surface, thereby reducing the friction coefficient, reducing airflow turbulence and resistance in the duct, and thus reducing noise.

[0021] 2. The opening degree of each air intake pipe can be controlled by the closing plate, thereby precisely controlling the amount of airflow entering the room, which makes it easier to control the indoor temperature. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of Example 1;

[0023] Figure 2 This is a structural schematic diagram of Example 2;

[0024] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the sliding block.

[0026] In the diagram, 1. First ventilation pipe; 11. Air inlet pipe; 12. Closing plate; 2. Connecting pipe; 21. Clamp; 3. Polyurethane foam block; 4. Circular pipe; 41. Annular groove; 5. Drive assembly; 51. First gear; 511. Sliding groove; 512. Sliding block; 513. Spring; 514. Steel ball; 52. Second gear; 53. First gear ring; 54. Third gear; 55. Drive motor. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0028] Example 1:

[0029] This application discloses an air conditioning duct that reduces air turbulence and noise, referring to... Figure 1 It includes several first ventilation pipes 1, which are interconnected, and the cross-section of each first ventilation pipe 1 is elliptical. The first ventilation pipe 1 located at the air inlet end is connected to several air inlet pipes 11, which are evenly distributed on the outer peripheral wall of the first ventilation pipe 1.

[0030] Reference Figure 1A connecting pipe 2 is provided between two adjacent first ventilation pipes 1. The connecting pipe 2 is a corrugated pipe, and its two ends are fixed to the two first ventilation pipes 1 respectively. The corrugated pipe has straight pipe sections at both ends, which are sleeved on the ends of the first ventilation pipes 1. The corrugated pipe has clamps 21 at both ends, which clamp the straight pipe sections tightly.

[0031] Reference Figure 1 The inner wall of the first ventilation duct 1 has regular, tiny protrusions. These protrusions, formed through precise surface processing techniques, alter the airflow direction, making it smoother and reducing eddies and turbulence, thereby lowering noise. Common microstructure treatment methods include surface spraying with specific wear-resistant and corrosion-resistant coatings, or chemical treatment to create a dense, micron-scale structure on the material surface. This treatment significantly improves the smoothness of airflow within the duct, enhances the overall system's operating efficiency, and reduces noise.

[0032] Reference Figure 1 A polyurethane foam block 3 is installed on the inner wall of the first ventilation duct 1 at the corner. The polyurethane foam block 3 is attached and fixed to the inner wall of the first ventilation duct 1. The polyurethane foam block 3 has a uniformly distributed porous structure. It can effectively absorb and disperse the vibration caused by sudden changes in airflow speed. By absorbing the vibration and noise fluctuations in the airflow, it can reduce the transmission of noise.

[0033] In addition, the first ventilation duct 1 is equipped with a high-precision acoustic monitoring device, which can monitor the noise level inside the duct in real time. Based on the real-time data, an integrated control system automatically adjusts the wind speed and the opening and closing status of the duct to maintain the noise level below the set level, thereby achieving dynamic noise control.

[0034] The implementation principle of Embodiment 1 of this application is as follows: by adopting an elliptical cross-section duct design, the air flow path is optimized, thereby effectively reducing the airflow resistance and turbulence common in traditional rectangular or circular ducts. The inner wall of the first ventilation pipe 1 is formed with regular micro protrusions through precise surface processing technology. These microstructures can effectively reduce the contact area between air and the inner wall surface, thereby reducing the friction coefficient, reducing the turbulence and resistance of airflow in the duct, and thus reducing noise.

[0035] Example 2:

[0036] The difference between Example 2 and Example 1 is that, referring to Figure 2 and Figure 3The first ventilation pipe 1 located at the air inlet end is fixedly connected to a circular pipe 4. The air inlet pipe 11 is set on the circular pipe 4. The air inlet pipe 11 is provided with a closing plate 12 for opening and closing the air inlet pipe 11. The circular pipe 4 is provided with a driving assembly 5 for driving the closing plate 12 to open and close the air inlet pipe 11.

[0037] Reference Figure 2 and Figure 3 Rotating rods are fixedly connected to the peripheral walls on both sides of the closed plate 12 distributed along the axis of the first ventilation pipe 1. The rotating rods are rotatably connected to the air inlet pipe 11, and one of the rotating rods is driven through to the outside of the air inlet pipe 11.

[0038] Reference Figure 2 and Figure 3 The drive assembly 5 includes a first gear 51 and a second gear 52. The first gear 51 is coaxially rotatably sleeved on the circular tube 4. Several second gears 52 are provided and correspond to several air intake pipes 11 respectively. The second gear 52 is coaxially fixedly connected to one end of the rotating rod located outside the air intake pipe 11. The first gear 51 meshes with the second gear 52.

[0039] Reference Figure 2 and Figure 3 The drive assembly 5 also includes a first gear ring 53, a third gear 54, and a drive motor 55. The drive motor 55 is fixedly connected to the outer peripheral wall of the circular tube 4 via a mounting plate. The first gear ring 53 is coaxially fixed to the side of the first gear 51 away from the second gear 52. The third gear 54 is coaxially fixed to the output shaft of the drive motor 55 and meshes with the first gear ring 53.

[0040] Reference Figure 4 The inner wall of the first gear 51 is fixedly provided with a sliding groove 511. Several sliding grooves 511 are arranged in a circular array around the axis of the first gear 51. The first gear 51 is provided with a sliding block 512 slidably connected to the sliding groove 511. A steel ball 514 is rotatably connected to one end of the sliding block 512 near the axis of the first gear 51. The outer peripheral wall of the circular tube 4 is provided with an annular groove 41 for the sliding block 512 to be engaged. The steel ball 514 abuts against the groove wall of the annular groove 41. The first gear 51 is provided with a spring 513 that forces the sliding block 512 to slide closer to the axis of the first gear 51. The spring 513 is located inside the sliding groove 511, with one end fixedly connected to the sliding block 512 and the other end fixedly connected to the bottom wall of the sliding groove 511.

[0041] The implementation principle of Example 2 is as follows: the opening degree of each air inlet pipe 11 can be controlled by the closing plate 12, thereby precisely controlling the amount of airflow entering the room, which makes it easier to control the indoor temperature.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An air conditioning duct that reduces air turbulence and noise, characterized in that: It includes several first ventilation pipes (1), which are interconnected. The cross-section of the first ventilation pipe (1) is elliptical. The inner wall of the first ventilation pipe (1) has regular small protrusions.

2. An air conditioning duct for reducing air turbulence and noise according to claim 1, characterized in that: A polyurethane foam block (3) is provided at the corner of the first ventilation pipe (1), and the polyurethane foam block (3) has a uniformly distributed porous structure.

3. An air conditioning duct for reducing air turbulence and noise according to claim 1, characterized in that: A connecting pipe (2) is provided between two adjacent first ventilation pipes (1). The connecting pipe (2) is a corrugated pipe, and the two ends of the connecting pipe (2) are fixed to the two first ventilation pipes (1) respectively.

4. An air conditioning duct for reducing air turbulence and noise according to claim 1, characterized in that: The outer peripheral wall of the first ventilation pipe (1) located at the air inlet end is provided with a plurality of air inlet pipes (11), the air inlet pipe (11) is provided with a closing plate (12) for opening and closing the air inlet pipe (11), and the first ventilation pipe (1) is provided with a driving assembly (5) for driving the closing plate (12) to open and close the air inlet pipe (11).

5. An air conditioning duct for reducing air turbulence and noise according to claim 3, characterized in that: The corrugated pipe has straight pipe sections at both ends, which are fitted onto the ends of the first ventilation pipe (1). The corrugated pipe is provided with clamps (21) at both ends, which are clamped to the straight pipe sections.

6. An air conditioning duct for reducing air turbulence and noise according to claim 4, characterized in that: Rotating rods are fixedly connected to the peripheral walls on both sides of the closed plate (12). The rotating rods are rotatably connected to the air inlet pipe (11). The drive assembly (5) includes a first gear (51) and a second gear (52). The first gear (51) is rotatably connected to the first ventilation pipe (1). Several second gears (52) are provided and correspond to several air inlet pipes (11) respectively. The second gear (52) is coaxially arranged on one of the rotating rods of the closed plate (12).

7. An air conditioning duct for reducing air turbulence and noise according to claim 6, characterized in that: The drive assembly (5) further includes a first gear ring (53), a third gear (54) and a drive motor (55). The first gear ring (53) is coaxially disposed on the back of the first gear (51). The drive motor (55) is disposed on the first ventilation pipe (1). The third gear (54) is disposed on the output shaft of the drive motor (55). The third gear (54) meshes with the first gear ring (53).

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