Waterproof noise reduction pipe

Abstract

The waterproof noise reduction pipe comprises an upper cover, a lower cover and a corrugated pipe, the upper cover and the lower cover are combined to form a flat pipe structure, one end of the flat pipe structure is an air inlet, and the other end of the flat pipe structure is connected with the corrugated pipe. Wherein a waterproof film is arranged on the outer surface of the upper cover and / or the lower cover, and the upper cover is made of a PET (Polyethylene Terephthalate) sound-absorbing felt material. According to the waterproof noise reduction pipe, the stability and waterproofness of the pipe body are improved through the flat pipe structure formed by combining the upper cover and the lower cover and the waterproof film, the noise reduction effect is effectively enhanced through the PET sound absorption felt material, better flexibility and sealing performance are provided through the corrugated pipe design, and the durability and adaptability of a traditional structure are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile intake pipe, more specifically, relate to a waterproof noise reduction pipe. BACKGROUND

[0002] A kind of flat mouth type noise reduction pipe is disclosed in CN 209100173 U, including pipe joint, air passage plate and pipe body, pipe body is internally hollow flat pipe structure, pipe body is woven from noise reduction material, pipe body includes air outlet and air inlet, air passage plate includes exhaust port and air inlet, air passage plate is equipped with clamping strip, clamping strip is used to tighten exhaust port, air inlet is connected with air outlet, pipe joint is arc curved flat pipe structure and includes first connecting part and second connecting part, first connecting part is connected with air inlet, second connecting part is equipped with clamping piece, the inside of pipe joint, air passage plate, pipe body three are connected.

[0003] The air passage plate in the above patent is formed by welding the upper and lower halves, and the PET pipe used is a single-layer ordinary PET structure. Due to this design, there is a problem of insufficient noise reduction effect, especially in the suppression of high-frequency noise. In addition, part of the sound may be radiated to the external environment through the pipe body, resulting in unsatisfactory noise reduction effect. At the same time, this structure lacks waterproof performance, which may adversely affect the use of the vehicle and affect the overall stability and durability. SUMMARY

[0004] The utility model aims at solving one of the technical problems in the related art to some extent. To this end, the utility model embodiment proposes a waterproof noise reduction pipe, which improves the stability and waterproofness of the pipe body through the flat pipe structure formed by the combination of the upper cover and the lower cover and the waterproof membrane, effectively enhances the noise reduction effect by using PET sound-absorbing felt material, and provides better flexibility and sealing by designing the corrugated pipe, thereby improving the durability and adaptability of the traditional structure.

[0005] The technical scheme adopted by the utility model is to provide a waterproof noise reduction pipe, which comprises an upper cover, a lower cover and a corrugated pipe, the upper cover and the lower cover are combined to form a flat pipe structure, one end of which is an air inlet, and the other end is connected with the corrugated pipe.

[0006] The outer surface of the upper cover and / or the lower cover is provided with a waterproof membrane, and the upper cover is made of PET sound-absorbing felt material.

[0007] After adopting the above structure, firstly, the combination of the upper cover and the lower cover forms a flat pipe structure, which not only enhances the stability of the pipe body, but also covers the outer surface with a waterproof membrane to improve the defect of lacking waterproofness in the traditional design. The waterproof membrane can effectively prevent water from entering the pipe, avoiding structural damage or performance degradation caused by moisture intrusion, especially for applications in environments such as vehicles that are susceptible to moisture, providing higher durability.

[0008] Secondly, the upper cover adopts PET sound-absorbing felt material, which has good sound wave absorption performance. Compared with the traditional single-layer PET pipe, it can provide effective noise attenuation in a wider frequency band, especially the suppression effect of high-frequency noise is significantly improved. PET sound-absorbing felt has excellent acoustic characteristics, which helps to reduce the propagation of noise and improve the overall noise reduction effect.

[0009] In addition, the use of the corrugated pipe further enhances the flexibility and adaptability of the pipe body, which can provide better cooperation and sealing performance in different installation environments. Compared with the traditional single-structure pipe body, this corrugated pipe design effectively reduces the limitations caused by structural rigidity, making the overall pipeline more durable and reliable.

[0010] According to an embodiment of the present application, the waterproof film is a PET waterproof film; which can effectively prevent water from entering the pipe, enhance the waterproof performance of the pipe body, and ensure that the structure stability and performance are maintained in a humid environment.

[0011] According to an embodiment of the present application, the upper cover and the lower cover are connected by welding.

[0012] According to an embodiment of the present application, the lower cover is provided with a connecting lug; the noise reduction pipe is connected and installed with the vehicle body through the connecting lug, which ensures that the noise reduction pipe is stably fixed on the vehicle body, and improves the convenience of installation and the stability of the structure.

[0013] According to an embodiment of the present application, the connecting lug is connected with a shock-absorbing pad and a bushing, the shock-absorbing pad can effectively absorb vibration and reduce noise propagation, and the bushing provides additional support and protection, further enhancing the stability and durability of the connection between the noise reduction pipe and the vehicle body.

[0014] According to an embodiment of the present application, the corrugated pipe is connected with a connector away from the end of the flat pipe structure.

[0015] According to an embodiment of the present application, a plurality of partitions are provided between the upper cover and the lower cover, the partitions separate the air inlet into multiple channels, which helps to optimize airflow distribution, improve airflow uniformity, and further improve the noise reduction effect and aerodynamic performance of the noise reduction pipe. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0017] Fig. 1 It is the perspective view of the waterproof and noise reduction pipe in the embodiment of the utility model.

[0018] Fig. 2 It is the perspective view of the waterproof and noise reduction pipe in the embodiment of the utility model.

[0019] Fig. 3 It is the explosion view of the waterproof and noise reduction pipe in the embodiment of the utility model.

[0020] Mark explanation in the drawing:

[0021] 1, lower cover; 2, upper cover; 3, corrugated pipe; 4, shock pad; 5, partition; 6, joint; 7, bushing;

[0022] 11, connecting lug. Specific implementation

[0023] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model and cannot be understood as limiting the utility model. Example one

[0024] As shown in the drawing, Figs. 1-3 In the embodiment, a waterproof and noise reduction pipe is disclosed, which comprises an upper cover 2, a lower cover 1 and a corrugated pipe 3, the upper cover 2 and the lower cover 1 are combined to form a flat tube structure, one end of which is an air inlet, and the other end is connected with the corrugated pipe 3.

[0025] Among them, the outer surface of the upper cover 2 and / or the lower cover 1 is provided with a waterproof film, and the upper cover 2 is made of PET sound-absorbing felt material.

[0026] Further, in the embodiment, the upper cover 2 is made of PET sound-absorbing felt material as a whole, is formed by hot pressing process, and a layer of PET waterproof film is covered on the outer surface of the upper cover 2 to enhance the waterproof performance. The upper cover 2 and the lower cover 1 are tightly connected by vibration welding technology to form an integrated structure, and the combination of the two forms a flat tube shape. One end of the flat tube structure is a flat mouth, and the other end is a round mouth and is connected with the corrugated pipe 3. The end of the corrugated pipe 3 is connected with the related pipeline on the vehicle body through the joint 6 to ensure the stable installation and smooth connection of the pipeline.

[0027] Further, in the embodiment, the lower cover 1 is made of PP material, has strong durability and impact resistance. Two partitions 5 are connected to the inner surface of the lower cover 1, the upper ends of the partitions 5 abut against the inner wall of the upper cover 2, and the air inlet is ingeniously divided into three channels, so that the distribution and flow rate of the airflow are effectively optimized. The lower cover 1 is also provided with a connecting lug 11, the noise reduction pipe is connected and installed with the vehicle body through the connecting lug 11, so that the noise reduction pipe can be stably fixed on the vehicle body and is not easy to loosen or displace. The connecting lug 11 is also connected with a shock pad 4 and a bushing 7, the shock pad 4 is made of EPDM material and can effectively absorb and reduce vibration, so that vibration is avoided from being transmitted to the vehicle body and noise is further reduced. The metal bushing 7 is stably connected with the vehicle body through a fastener, so that the stability of the overall structure and the reliability of long-term use are ensured.

[0028] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0029] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection or communication with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements, unless otherwise explicitly limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and ordinary skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A waterproof noise reducing tube, characterized by: It comprises an upper cover, a lower cover and a corrugated pipe, the upper cover and the lower cover are combined to form a flat pipe structure, one end of which is an air inlet, and the other end is connected with the corrugated pipe. The outer surface of the upper cover and / or the lower cover is provided with a waterproof film, and the upper cover is made of PET sound-absorbing felt material.

2. The waterproof noise reducing tube according to claim 1, wherein: The waterproof film is a PET waterproof film.

3. The waterproof noise reducing tube of claim 1, wherein: The upper cover and the lower cover are connected by welding.

4. The waterproof noise reducing tube of claim 1, wherein: The lower cover is provided with a connecting lug.

5. A waterproof noise reducing tube according to claim 4, wherein: The connecting lug is connected with a shock pad and a bushing.

6. The waterproof noise reducing tube of claim 1, wherein: The end of the corrugated pipe away from the flat pipe structure is connected with a joint.

7. The waterproof noise reducing tube of claim 1, wherein: A plurality of partitions are arranged between the upper cover and the lower cover, and the partitions separate the air inlet into a plurality of channels.

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