Dustproof and noise reduction automobile air duct

Abstract

The utility model discloses a dustproof noise reduction automobile air channel relates to automobile parts technical field, and it is connected with the air inlet pipe head in the air inlet end of air channel pipe body, the inside installation of air inlet pipe head has first dust screen and second dust screen, the mesh diameter of second dust screen is less than the mesh diameter of first dust screen, the middle part of first dust screen and second dust screen is all set to concave hemispherical shape, the inner wall of air channel pipe body is provided with sound absorption bubble cotton layer, one side of sound absorption bubble cotton layer is set in wave type away from the inner wall of air channel pipe body, the inner wall of air channel pipe body is fixed with a plurality of convex post, and the convex post is nested in sound absorption bubble cotton layer. The utility model can effectively intercept the impurity in air, and the air inlet pipe head is convenient to disassemble and clean, and the setting of sound absorption bubble cotton layer in air channel pipe body can effectively disperse the air direction, reduce the wind speed, reduce the sound frequency, thereby reduce the pneumatic noise in air channel pipe body.

Description

Technical Field

[0001] This utility model relates to the field of automotive component technology, specifically to a dustproof and noise-reducing automotive air duct. Background Technology

[0002] With rapid economic development and rising living standards, more and more people own their own cars. The automotive air duct is a crucial component of the car's air conditioning system. Connected to the outlets of the air conditioning unit, it primarily serves to guide airflow, distributing the air from the unit to the appropriate vents.

[0003] Traditional automotive air duct systems often suffer from dust ingress and significant noise during airflow. Dust entering the ducts not only affects the air quality inside the vehicle but can also cause blockages, reducing the efficiency of the air conditioning system; while airflow noise within the ducts directly impacts the comfort of the driver and passengers. Utility Model Content

[0004] The purpose of this invention is to provide a dustproof and noise-reducing automotive air duct to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dustproof and noise-reducing automotive air duct, comprising:

[0006] The air duct body has an air inlet head connected to its air inlet end. The air inlet head is internally fitted with a first dustproof mesh and a second dustproof mesh. The mesh diameter of the second dustproof mesh is smaller than that of the first dustproof mesh, effectively filtering dust particles of different sizes and improving dust prevention. Both the first and second dustproof meshes have a concave hemispherical shape in the middle. This concave hemispherical design increases the airflow area and makes it easier for dust to accumulate in the concave part of the mesh, preventing blockage of the air duct. The inner wall of the air duct body is provided with a sound-absorbing foam layer. This layer effectively absorbs airflow noise within the air duct, reducing in-vehicle noise levels and improving driving comfort. The side of the sound-absorbing foam layer away from the inner wall of the air duct body is wavy. Multiple protruding pillars are fixed to the inner wall of the air duct body, nested within the sound-absorbing foam layer.

[0007] Furthermore, the second dustproof net is located between the first dustproof net and the air duct body, so that the air first undergoes coarse filtration and then fine filtration, further improving the dustproof efficiency.

[0008] Furthermore, the air inlet pipe head and the air duct body are connected by bolts, which makes the connection simple and convenient for installation and disassembly.

[0009] Furthermore, grooves are provided on the sound-absorbing foam layer corresponding to the positions of each of the protrusions, and the protrusions are nested in the grooves, which further enhances the bonding strength between the sound-absorbing foam layer and the air duct body, while avoiding direct interference of the protrusions to the airflow and optimizing the airflow channel.

[0010] Furthermore, the diameter of the protruding post increases sequentially in the direction away from the inner wall of the air duct, so that the protruding post is tightly connected to the sound-absorbing foam layer.

[0011] Furthermore, both the first and second dustproof nets are woven from stainless steel wire. The use of stainless steel wire to weave the dustproof nets provides them with good corrosion resistance and strength, enabling them to be used for a long time in harsh environments, thus extending their service life and ensuring the stability of their dustproof effect.

[0012] Furthermore, multiple mounting plates are fixed to the outer wall of the air duct body, and mounting holes are provided on the mounting plates to facilitate fixing the air duct to the corresponding position in the car. The installation is simple and quick, and the installation position is stable and reliable.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. An air inlet head is connected to the air inlet end of the air duct body. The air inlet head is equipped with a first dustproof net and a second dustproof net. The mesh diameter of the second dustproof net is smaller than that of the first dustproof net. This can effectively filter dust particles of different sizes, significantly improve the dustproof effect, reduce dust entering the vehicle, improve the air quality inside the vehicle, and at the same time, it is convenient to remove the air inlet head for cleaning and maintenance in the future.

[0015] 2. By setting a sound-absorbing foam layer on the inner wall of the air duct, and setting the side of the sound-absorbing foam layer away from the inner wall of the air duct in a wave shape, the air direction can be effectively dispersed, the wind speed reduced, and the sound frequency reduced, thereby reducing the aerodynamic noise in the air duct.

[0016] 3. By designing the middle part of both the first and second dustproof nets as concave hemispherical shapes, the air circulation area can be increased, and dust can be more easily deposited in the concave part of the net, thus avoiding clogging of the air duct. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the air inlet pipe head of this utility model;

[0020] Figure 3 This is a partial cross-sectional view of the air duct body of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Duct body; 2. Air inlet duct head; 3. First dustproof net; 4. Second dustproof net; 5. Sound-absorbing foam layer; 6. Protruding column; 7. Mounting plate. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] This utility model provides, for example Figures 1 to 3 The dustproof and noise-reducing automotive air duct shown includes:

[0025] The air duct body 1 has an air inlet head 2 connected to its air inlet end. The air inlet head 2 has a first dustproof net 3 and a second dustproof net 4 installed inside. The mesh diameter of the second dustproof net 4 is smaller than that of the first dustproof net 3, which can effectively filter dust particles of different sizes and improve the dustproof effect. The middle part of both the first dustproof net 3 and the second dustproof net 4 is set as a concave hemispherical shape. The concave hemispherical design in the middle of the dustproof net can increase the air circulation area and make it easier for dust to be deposited in the concave part of the net, thus avoiding clogging the air duct.

[0026] The inner wall of the air duct 1 is provided with a sound-absorbing foam layer 5. The sound-absorbing foam layer 5 can effectively absorb the airflow noise in the air duct, reduce the noise level in the vehicle, and improve the driving comfort. The side of the sound-absorbing foam layer 5 away from the inner wall of the air duct 1 is wavy, which increases the contact area between the sound-absorbing material and the airflow, further improving the sound absorption effect. Multiple protruding pillars 6 are fixed on the inner wall of the air duct 1. The protruding pillars 6 are nested in the sound-absorbing foam layer 5, which enhances the fixing effect of the sound-absorbing foam layer 5 and prevents it from shifting under the impact of airflow.

[0027] The second dustproof net 4 is located between the first dustproof net 3 and the air duct 1, so that the air first passes through coarse filtration and then fine filtration, further improving the dustproof efficiency.

[0028] The air inlet duct head 2 and the air duct body 1 are connected by bolts, which is simple and convenient for installation and disassembly.

[0029] Grooves are provided on the sound-absorbing foam layer 5 corresponding to the positions of each protrusion 6. The protrusion 6 is nested in the grooves, which further enhances the bonding strength between the sound-absorbing foam layer 5 and the air duct 1, while avoiding direct interference of the protrusion 6 to the airflow and optimizing the airflow channel.

[0030] The diameter of the protruding post 6 increases sequentially in the direction away from the inner wall of the air duct 1, so that the protruding post 6 is tightly connected to the sound-absorbing foam layer 5.

[0031] Both the first dustproof net 3 and the second dustproof net 4 are woven from stainless steel wire. The stainless steel wire used to weave the dustproof net has good corrosion resistance and strength, and can be used for a long time in harsh environments, thus extending the service life of the dustproof net and ensuring the stability of the dustproof effect.

[0032] Multiple mounting plates 7 are fixed on the outer wall of the air duct body 1. The mounting plates 7 have mounting holes, which makes it easy to fix the air duct to the corresponding position of the car. The installation is simple and quick, and the installation position is stable and reliable.

[0033] In this invention, an air inlet head 2 is connected to the air inlet end of the duct body 1. A first dustproof net 3 and a second dustproof net 4 are installed inside the air inlet head 2. The first dustproof net 3 and the second dustproof net 4 filter the incoming air. The middle part of the first dustproof net 3 and the second dustproof net 4 are both set as concave hemispherical. The concave hemispherical design in the middle of the dustproof net can increase the air circulation area and make it easier for dust to be deposited in the concave part of the net, thus avoiding clogging the air duct. The mesh diameter of the second dustproof net 4 is smaller than that of the first dustproof net 3, which can effectively filter dust particles of different sizes, improve the dustproof effect, and prevent dust and impurities from entering the duct body 1. At the same time, it is convenient to disassemble the air inlet head 2 for cleaning and maintenance later. A sound-absorbing foam layer 5 is provided on the inner wall of the duct body 1. The side of the sound-absorbing foam layer 5 away from the inner wall of the duct body 1 is set in a wave shape, which can effectively disperse the wind direction, reduce the wind speed, and reduce the sound frequency, thereby reducing the aerodynamic noise in the duct body 1.

[0034] The above description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A dustproof and noise-reducing automotive air duct, characterized in that, include: The air duct body (1) has an air inlet head (2) connected to its air inlet end. The air inlet head (2) is equipped with a first dustproof net (3) and a second dustproof net (4). The mesh diameter of the second dustproof net (4) is smaller than that of the first dustproof net (3). The middle part of the first dustproof net (3) and the second dustproof net (4) are both set as concave hemispherical. The inner wall of the air duct body (1) is provided with a sound-absorbing foam layer (5). The side of the sound-absorbing foam layer (5) away from the inner wall of the air duct body (1) is set in a wave shape. The inner wall of the air duct body (1) is fixed with a plurality of protruding pillars (6). The protruding pillars (6) are nested in the sound-absorbing foam layer (5).

2. The dustproof and noise-reducing automotive air duct according to claim 1, characterized in that: The second dustproof net (4) is located between the first dustproof net (3) and the air duct body (1).

3. The dustproof and noise-reducing automotive air duct according to claim 1, characterized in that: The air inlet pipe head (2) is connected to the air duct body (1) by bolts.

4. The dustproof and noise-reducing automotive air duct according to claim 1, characterized in that: The sound-absorbing foam layer (5) has grooves corresponding to the positions of each of the protrusions (6), and the protrusions (6) are nested in the grooves.

5. The dustproof and noise-reducing automotive air duct according to claim 1, characterized in that: The diameter of the protruding post (6) increases sequentially in the direction away from the inner wall of the air duct body (1).

6. The dustproof and noise-reducing automotive air duct according to claim 1, characterized in that: Both the first dustproof net (3) and the second dustproof net (4) are made of stainless steel wire.

7. The dustproof and noise-reducing automotive air duct according to claim 1, characterized in that: The outer wall of the air duct (1) is fixed with a plurality of mounting plates (7), and the mounting plates (7) are provided with mounting holes.

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