Mute noise reduction frame type air duct device

Abstract

The utility model belongs to the technical field of electrical cabinet air cooling, and particularly relates to a mute noise reduction frame type air duct device, which comprises a main body frame, a metal plate shell, a mute module and an air outlet, the main body frame is fixedly connected with the metal plate shell, the mute module is arranged in the metal plate shell, and the air outlet is arranged on the metal plate shell. And sealant is arranged between the main body frame and the metal plate shell. The air duct has the advantages that the sheet metal shell is fixed outside the main body frame to form an integrated structure, the advantages of sheet metal splicing are integrated, the air duct is good in sealing performance and firmness and convenient to maintain, and the problems that a conventional air duct is prone to damage and large in noise are solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the electrical cabinet air cooling technical field especially relates to a frame type air duct device of quiet noise reduction. BACKGROUND

[0002] The air duct is generally made by sheet metal splicing, which has the characteristics of convenient maintenance, low cost, simple structure and light weight, but in the existing air duct structure, there are often problems such as unstable structure, poor noise reduction effect, easy damage of the shell and insufficient universality, which cannot meet the demand of efficient ventilation and quietness of the cabinet. In the electrical cabinet, the fan in the cabinet provides power to exhaust hot air in the cabinet to the outside, and generally no fan is arranged in the air duct, so that the flow rate in the air duct is reduced after the hot air enters the air duct, and the heat dissipation effect is reduced. SUMMARY

[0003] The utility model discloses a frame type air duct device of quiet noise reduction improves structural strength, and convenient maintenance adopts integrated structure design, reduces noise.

[0004] To achieve the above object, the utility model discloses the following technical scheme:

[0005] A frame type air duct device of quiet noise reduction, including main body frame, sheet metal shell, quiet module, air outlet, main body frame is fixedly connected with sheet metal shell, quiet module is installed in the inside of sheet metal shell, is equipped with an air outlet on sheet metal shell.

[0006] The main body frame and the sheet metal shell are provided with sealing glue.

[0007] The main body frame is welded into an integrated structure by a section bar.

[0008] At least one air inlet is arranged on the sheet metal shell.

[0009] The quiet module is fixedly connected with the sheet metal shell by bolts.

[0010] The quiet module includes an outer frame, a flat plate and quiet cotton cloth, the flat plate is fixed in the outer frame, and the quiet cotton cloth is fixedly connected to the flat plate.

[0011] The outer frame is provided with mounting holes.

[0012] The edge of the air outlet is smooth.

[0013] L-shaped flanges are welded to the four corners of the main body frame.

[0014] Compared with the prior art, the utility model has the advantages of:

[0015] 1. This utility model adopts an integrated structure with a main frame and an external fixed sheet metal shell, which combines the advantages of sheet metal splicing, has good sealing and sturdiness, is easy to maintain, and solves the problems of conventional air ducts being easily damaged and having excessive noise.

[0016] 2. The main frame of this utility model adopts an integrated welded form, which can ensure the stability of the air duct during use, withstand the pressure during ventilation, prevent the air duct from deforming, effectively improve the overall structural strength, and provide a guarantee for the long-term stable operation of the air duct.

[0017] 3. This utility model uses a sheet metal shell, which has good sealing and sturdiness. The shell has no gaps or weak points, reducing noise caused by air leakage and better resisting external impacts and pressures, thus extending the service life of the air duct. At the same time, the sheet metal material itself has a certain sound insulation effect, further enhancing the quietness of the air duct.

[0018] 4. The air duct structure of this utility model has a single air outlet, which can concentrate airflow and improve ventilation efficiency. Compared with multi-outlet structures, single-outlet air ducts have greater advantages in terms of aerodynamics, which can reduce turbulent airflow within the air duct, thereby reducing noise caused by airflow turbulence.

[0019] 5. The sound-absorbing module of this utility model uses sound-absorbing cotton, which can significantly reduce noise interference. The sound-absorbing module has strong versatility and interchangeability, and can be used with various cabinet sizes, enhancing its applicability and flexibility. Attached Figure Description

[0020] Figure 1 This is the front view of Embodiment 1.

[0021] Figure 2 This is a side view of Example 1.

[0022] Figure 3 This is the front view of Embodiment 2.

[0023] Figure 4 This is a side view of Embodiment 2.

[0024] Figure 5 This is a structural diagram of the silent module.

[0025] Figure 6 This is a schematic diagram showing the connection between the sheet metal shell and the L-shaped flange.

[0026] Figure 7 This is a schematic diagram showing the connection between the main frame and the sheet metal shell.

[0027] Figure 8 This is a schematic diagram of the internal structure of the silent module.

[0028] In the figure: 1-main body frame 2-metal shell 3-silence module 4-air outlet 5-air inlet 6-outer frame 7-silence cotton cloth 8-L-shaped blocking edge 9-bolt. DETAILED DESCRIPTION

[0029] The utility model will be described in detail below in conjunction with the drawings of the specification, but it should be pointed out that the implementation of the utility model is not limited to the following embodiments.

[0030] Embodiment 1

[0031] See Figure 1 , Figure 2 A silence noise reduction frame type air duct device, comprising a main body frame 1, a metal shell 2, a silence module 3, and an air outlet 4, the main body frame 1 is fixedly connected with the metal shell 2, ensuring that the metal shell 2 is closely attached to the main body frame. The silence module 3 is installed inside the metal shell 2, and the metal shell 2 is provided with an air outlet 4.

[0032] The silence module 3 can be installed around the inside of the air duct and on the outer top, thereby achieving the effect of maximizing silence and reducing noise diffusion caused by reflection of sound waves on the metal surface. Figure 6 The metal shell 2 is internally welded with an L-shaped blocking edge 8 at the four corners, which is used to limit the position of the silence module 3. When installed, the silence module 3 is clamped in the L-shaped blocking edge 8, and then connected through the bolts fixed in the metal shell 2, and then fastened with nuts to prevent the silence module 3 from loosening and falling off due to vibration during transportation or fan operation. Figure 7 Screw holes can be opened on the main body frame 1, and through holes can be opened on the metal shell 2, and the two are connected and fastened through bolts 9, and the connection is sealed with sealing glue to ensure the sealing property and reduce noise at the same time.

[0033] The main body frame 1 is welded into an integrated structure to ensure the stability of the air duct during use, can withstand the pressure during ventilation, and prevent the air duct from deforming. The welding process makes the connection of the frame more firm, effectively improves the overall structural strength compared with the traditional connection method, and provides protection for the long-term stable operation of the air duct.

[0034] The metal shell 2 is integrally formed, and the metal shell 2 is a steel plate punched and bent into shape, and the bent edge line is fully welded by laser, having good sealing property and firmness. Through this forming method, the shell has no gap or weak point, reducing the noise caused by air leakage, and being able to better resist external impact and pressure, prolonging the service life of the air duct. At the same time, the metal material itself has a certain sound insulation effect, further enhancing the silence performance of the air duct.

[0035] Embodiment 2

[0036] See Figure 3 ,Figure 4 On the basis of embodiment 1, the air duct is provided with two air inlets 5 and one air outlet 4, that is, two air inlets 5 are arranged at the bottom of the sheet metal shell 2, and a single air outlet 4 is arranged at one end of the air duct, and the edge of the air outlet 4 is smoothly treated to reduce air flow resistance. The airflow enters the air duct from the two air inlets 5 at the bottom, and is discharged by the air outlet 4.

[0037] Embodiment 3

[0038] See Figure 5 、 Figure 8 The mute module 3 of embodiment 1 and embodiment 2 is fixed on the sheet metal shell 2 by bolts, and the mute module 3 comprises an outer frame 6 and a mute cotton cloth 7, and the mute cotton cloth 7 is fixed in the outer frame 6. The outer frame 6 can adopt a sheet metal structure, and the outer frame 6 is provided with mounting holes for connecting bolts. The mute module 3 effectively reduces the noise generated by the air flow in the air duct by absorbing and reflecting sound waves. The mute cotton can be carbon fiber mute cotton, which can improve the mute effect while reducing the cost. The mute module 3 can select different sizes and installation positions according to the specifications and models of the cabinet body, and has strong universality and interchangeability, and is compatible with multiple types of cabinet bodies.

[0039] The utility model adopts that the main body frame 1 outside fixed sheet metal shell 2 forms integrated structure, the advantage that the sheet metal splicing is synthesized, has good leakproofness and firmness, facilitates maintenance, has solved the problem that the conventional air duct is easy to damage and the noise is too large.

[0040] Through the above specific embodiments, the skilled in the art can easily implement the utility model. However, it should be understood that the utility model is not limited to the above specific embodiments. On the basis of the disclosed embodiments, the skilled in the art can arbitrarily combine different technical features to realize different technical solutions. Limited by the length and in order to make the specification brief, each scheme formed by combining these is not described one by one. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A silent noise reducing framed air duct apparatus, characterized by, Including main body frame, sheet metal shell, mute module, air outlet, main body frame and sheet metal shell fixed connection, mute module is installed in sheet metal shell inside, be equipped with an air outlet on sheet metal shell.

2. A silent noise reduction frame air duct device according to claim 1, characterized in that, The main body frame and the sheet metal shell are provided with sealing glue therebetween.

3. The frame silencer according to claim 1, wherein The main body frame is welded into an integral structure by a profile.

4. The frame silencer according to claim 1, wherein, The sheet metal shell is provided with at least one air inlet.

5. The frame silencer according to claim 1, wherein The mute module is fixedly connected with the sheet metal shell by bolts.

6. The frame silencer according to claim 1, wherein The mute module comprises an outer frame and a mute cotton cloth.

7. A framed plenum device according to claim 6, wherein, The outer frame is provided with mounting holes.

8. The silent noise reducing frame air duct apparatus of claim 1, wherein, The edge of the air outlet is smooth.

9. The frame silencer according to claim 1, wherein, L-shaped flanges are welded at four corners in the main body frame.

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