Noise reduction air receiving port

Abstract

The utility model discloses a noise reduction air receiving port, which comprises a square frame, an outer plate, a shell, an air inlet, an air inlet pipeline, an air outlet joint, an inner plate and an air outlet, the outer plate is arranged above the square frame, the shell is arranged on the outer plate, the air inlet is arranged on the shell, one side of the shell is connected with the air inlet pipeline, and the other side of the shell is connected with the air outlet joint. One end of the air inlet pipeline is communicated with the air inlet in the shell, and the other end of the air inlet pipeline is communicated with an air outlet connector. An inner plate is installed below the square frame, an air outlet is formed in the inner plate and communicated with the air outlet end of the air outlet connector, the shell is of a square structure with an opening in the top, an air inlet is formed in the side wall of the shell, the air inlet pipeline is a porous noise reduction air channel, the air outlet connector is composed of two air channel connectors, and the air inlet connector is connected with the air inlet pipeline. According to the utility model, wind noise and external sound can be reduced, so that the sound insulation effect of the cabin body is improved, and wind circulation is kept.

Description

Technical Field

[0001] This utility model relates to the technical field of cabin noise reduction, and in particular to the technical field of noise reduction air inlets. Background Technology

[0002] A cabin is a transportable container-type work area with a certain level of protection. It provides a suitable working environment for personnel and equipment, is suitable for various modes of transportation, and has the function of rapid loading and unloading.

[0003] The cabin is usually an enclosed space. To ensure the comfort of users inside the cabin, a ventilation system is usually installed. However, the air conditioning and ventilation systems currently used in cabins usually have louvers installed at the return air vents to allow air to flow out. The return air speed is slow and the return air effect is not obvious. As a result, not only can odors inside the cabin not be expelled in time, but the air circulation speed is also slow, resulting in poor cooling or heating effects of the air conditioner.

[0004] To address the aforementioned problems, for example, application number CN202120336584.5 discloses an air conditioning ventilation structure and a cabin, including an inner shell and an outer shell of the cabin arranged in a nested manner, forming a sandwich space between the inner shell and the outer shell. The air conditioning ventilation structure also includes an air conditioning mechanism disposed within the sandwich space, comprising a ventilation duct and an air conditioner. The air conditioner is an integrated air conditioner. The inlet end of the ventilation duct is connected and sealed to the air outlet of the air conditioner, and the outlet end of the ventilation duct is connected and sealed to the chamber of the inner shell of the cabin. When the exhaust fan is running, it can quickly exhaust the gas in the chamber of the inner shell of the cabin to the outside of the outer shell of the cabin through the exhaust duct, increasing the return air speed and removing odors from the cabin more quickly. Furthermore, due to the increased return air speed, the gas circulation speed inside and outside the cabin can be accelerated, improving the cooling or heating effect of the air conditioner. However, this structure still has the following drawbacks:

[0005] Because the cabin lacks noise-reducing air inlets on top, it cannot effectively reduce noise generated by the ventilation system or external sounds. This results in significant wind noise within the cabin and insufficient overall sound insulation. Summary of the Invention

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a noise-reducing air inlet that can reduce wind noise and external sounds, thereby improving the sound insulation effect of the cabin while maintaining airflow.

[0007] To achieve the above objectives, this utility model proposes a noise-reducing air inlet, comprising a square frame, an outer panel, a shell, an air inlet, an air inlet duct, an air outlet connector, an inner panel, and an air outlet. The outer panel is installed on the top of the square frame, and the shell is installed on the outer panel. The shell has an air inlet, and an air inlet duct is connected to one side of the shell. One end of the air inlet duct is connected to the air inlet on the shell, and the other end of the air inlet duct is connected to the air outlet connector. The inner panel is installed below the square frame, and an air outlet is installed on the inner panel. The air outlet is connected to the air outlet end of the air outlet connector.

[0008] Preferably, the housing is a square structure with an open top, and the air inlet is located on the side wall of the housing.

[0009] Preferably, the air inlet duct is a porous, sound-absorbing duct.

[0010] Preferably, the air outlet connector consists of two air duct interfaces, one end of each of the two air duct interfaces is connected to the air outlet end of the air inlet pipe, and the other end of each of the two air duct interfaces is connected to the air outlet, and the air duct interfaces are arranged symmetrically from left to right.

[0011] Preferably, both of the air duct interfaces are streamlined in shape.

[0012] Preferably, there are two air outlets, and the two air outlets are respectively connected to the air outlet ends of the two air duct interfaces.

[0013] The beneficial effects of this utility model are:

[0014] This invention, through the combined use of the air inlet duct, air outlet connector, and air outlet, can reduce wind noise and external sound. By designing the air inlet duct as a porous sound-absorbing duct, when external wind noise and external sound enter the porous sound-absorbing duct, the microporous sound-absorbing material inside the porous sound-absorbing duct can convert sound energy into heat energy, thereby reducing noise transmission. By setting the duct interface in a streamlined shape, the streamlined shape reduces airflow loss and wind noise, thereby further weakening wind noise and external sound, thus greatly improving the sound insulation effect inside the cabin, increasing user comfort, and solving the problems of excessive wind noise and insufficient overall sound insulation effect inside the cabin. Attached Figure Description

[0015] Figure 1 This is the front view of the noise reduction air inlet of this utility model;

[0016] Figure 2 This is an exploded view of the noise reduction air inlet of this utility model;

[0017] Figure 3 This is a bottom view of the noise reduction air inlet of this utility model;

[0018] Figure 4 This is a top view of the noise reduction air inlet of this utility model;

[0019] Figure 5 This is a side view of the noise reduction air inlet of this utility model;

[0020] Figure 6 This is an internal schematic diagram of the noise reduction air inlet of this utility model;

[0021] In the diagram: 1-square frame, 2-outer panel, 3-shell, 31-air inlet, 4-air inlet duct, 5-air outlet connector, 51-air duct interface, 6-inner panel, 61-air outlet. Detailed Implementation

[0022] See Figures 1 to 6 This utility model discloses a noise-reducing air inlet, comprising a square frame 1, an outer panel 2, a shell 3, an air inlet 31, an air inlet duct 4, an air outlet connector 5, an inner panel 6, and an air outlet 61. The outer panel 2 is installed on the top of the square frame 1, and the shell 3 is installed on the outer panel 2. The shell 3 has an air inlet 31, and an air inlet duct 4 is connected to one side of the shell 3. One end of the air inlet duct 4 is connected to the air inlet 31 on the shell 3, and the other end of the air inlet duct 4 is connected to the air outlet connector 5. The inner panel 6 is installed below the square frame 1, and the air outlet 61 is provided on the inner panel 6. The air outlet 61 is connected to the air outlet end of the air outlet connector 5. When external wind noise and external sounds enter the air inlet duct 4 through the air inlet 31 on the shell 3, the air inlet duct 4 first weakens the wind noise and external sounds, and then further reduces noise through the streamlined air duct interface 51, thereby greatly improving the sound insulation effect inside the cabin.

[0023] See Figure 1 and Figure 2 The shell 3 is a square structure shell with an open top. The air inlet 31 is located on the side wall of the shell 3. By opening the air inlet 31 on the shell 3, the external air can enter the air inlet duct 4 through the air inlet 31 and finally enter the cabin.

[0024] See Figure 2 The air inlet duct 4 is a porous sound-absorbing duct. By setting the air inlet duct 4 as a porous sound-absorbing duct, when external wind noise and external sounds enter the porous sound-absorbing duct, the microporous sound-absorbing material in the porous sound-absorbing duct can convert sound energy into heat energy, thereby reducing noise transmission.

[0025] See Figure 2The air outlet connector 5 consists of two air duct interfaces 51. One end of each air duct interface 51 is connected to the air outlet end of the air inlet pipe 4, and the other end of each air duct interface 51 is connected to the air outlet 61. The air duct interfaces 51 are arranged symmetrically on the left and right. By connecting the two ends of the two air duct interfaces 51 to the air outlet end of the air inlet pipe 4 and the air outlet 61 respectively, the external wind can be weakened by the air duct interfaces 51 and then transmitted to the air outlet 61, and finally enter the cabin. This ensures noise reduction while maintaining air circulation.

[0026] See Figure 2 Both of the aforementioned air duct interfaces 51 are streamlined in shape. The purpose of the streamlined shape is to reduce air volume loss and reduce wind noise.

[0027] See Figure 2 There are two air outlets 61, and the two air outlets 61 are respectively connected to the air outlets of the two air duct interfaces 51, so that the noise-reduced air can enter the cabin through the air outlets 61.

[0028] The working process of this utility model:

[0029] During operation, when external wind noise and external sounds enter the air intake duct 4 through the air intake 31 on the housing 3, the microporous sound-absorbing material inside the air intake duct 4 can convert sound energy into heat energy, thereby reducing noise transmission. Subsequently, it is weakened through the streamlined air duct interface 51, thereby further reducing wind noise and external sounds. The noise-reduced air can then be transmitted from the air duct interface 51, pass through the air outlet 61, and finally enter the cabin, thereby greatly improving the sound insulation effect inside the cabin and increasing the user's comfort.

[0030] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A noise-reducing air inlet, characterized in that: The device includes a square frame (1), an outer plate (2), a shell (3), an air inlet (31), an air inlet pipe (4), an air outlet connector (5), an inner plate (6), and an air outlet (61). The outer plate (2) is installed on the top of the square frame (1), and the shell (3) is installed on the outer plate (2). The air inlet (31) is provided on the shell (3). The air inlet pipe (4) is connected to one side of the shell (3). One end of the air inlet pipe (4) is connected to the air inlet (31) on the shell (3), and the other end of the air inlet pipe (4) is connected to the air outlet connector (5). The inner plate (6) is installed below the square frame (1). The air outlet (61) is provided on the inner plate (6), and the air outlet (61) is connected to the air outlet end of the air outlet connector (5).

2. The noise-reducing air inlet as described in claim 1, characterized in that: The housing (3) is a square structure housing with an open top, and the air inlet (31) is located on the side wall of the housing (3).

3. The noise-reducing air inlet as described in claim 1, characterized in that: The air inlet duct (4) is a porous sound-absorbing duct.

4. The noise-reducing air inlet as described in claim 1, characterized in that: The air outlet connector (5) consists of two air duct interfaces (51). One end of each of the two air duct interfaces (51) is connected to the air outlet end of the air inlet pipe (4), and the other end of each of the two air duct interfaces (51) is connected to the air outlet (61). The air duct interfaces (51) are arranged symmetrically on the left and right.

5. The noise-reducing air inlet as described in claim 4, characterized in that: Both of the aforementioned air duct interfaces (51) are streamlined in shape.

6. The noise-reducing air inlet as described in claim 4, characterized in that: There are two air outlets (61), and the two air outlets (61) are respectively connected to the air outlet ends of the two air duct interfaces (51).

Images