Air inlet system silencer and automobile comprising same

Abstract

The utility model discloses an air inlet system silencer and an automobile comprising the same, the air inlet system silencer comprises a resonant cavity part and a silencing pipe, the inner wall surface of the resonant cavity part is provided with a plurality of positioning parts protruding outwards, the resonant cavity part is internally provided with a resonant cavity, and the silencing pipe is arranged in the resonant cavity part. A plurality of positioning parts are arranged in the resonant cavity part and abut against the outer surface of the hush pipe so that the hush pipe can be positioned and arranged in the resonant cavity, openings are formed in the two ends of the resonant cavity part, and the two ends of the hush pipe correspond to the two openings respectively and communicate with the two openings. The multiple positioning parts abut against the outer surface of the silencing pipe, so that the silencing pipe is installed and positioned in the resonant cavity component, the silencing capacity of the silencing device of the air inlet system is better, the silencing frequency band is wider, the corresponding silencing frequency can be adjusted, and the silencing device has the advantages of being high in practicability, short in changing period and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of intake system silencer and the automobile comprising it. BACKGROUND

[0002] In recent years, China's automobile has entered high-speed development, and the quality requirements of the public for automobile are higher and higher, and the noise in the car is also higher and higher. For the intake system, it is a very time-consuming and cost-consuming thing to make a system with good silencing effect in limited space.

[0003] At present, the silencing of automobile intake system is mainly through some traditional expanders, Holm-Hertz resonant cavities, perforated mufflers, wavelength tubes and woven tubes. The silencing ability and effect of these are relatively good and are the most used in the market. However, the quality requirements of the users of our cars for cars are getting higher and higher, and the requirements for car noise are also getting higher and higher, but the number of parts in the engine compartment of the whole car is getting more and more, and the effective space for intake is getting smaller and smaller, so it is necessary to make a silencer with better silencing ability, shorter modification period and lower modification cost in limited space. SUMMARY

[0004] The utility model aims at overcoming the above-mentioned deficiencies existing in the prior art, and provides an intake system silencer and a car comprising the same.

[0005] The utility model is realized by the following technical solutions:

[0006] An intake system silencer comprises a resonant cavity component and a silencer pipe. The inner wall surface of the resonant cavity component has a plurality of outwardly protruding positioning portions. The resonant cavity component has a resonant cavity therein, and the plurality of positioning portions abut against the outer surface of the silencer pipe to position the silencer pipe in the resonant cavity. The two ends of the resonant cavity component are provided with openings. The two ends of the silencer pipe correspond to and communicate with the two openings, respectively.

[0007] Further, the resonant cavity component comprises a resonant cavity upper cover and a resonant cavity lower cover. The two openings are located on the resonant cavity lower cover. The silencer pipe is installed in the resonant cavity lower cover. The resonant cavity upper cover is connected to the resonant cavity lower cover, and the resonant cavity upper cover and the resonant cavity lower cover form the resonant cavity therebetween.

[0008] Further, the resonant cavity upper cover and the resonant cavity lower cover are mutually welded;

[0009] And / or, the side of the resonant cavity lower cover facing the resonant cavity upper cover has a protruding portion, and the side of the resonant cavity upper cover facing the resonant cavity lower cover has a groove. The protruding portion is buckled and connected in the groove.

[0010] Further, the sound attenuation pipe comprises an upper half pipe and a lower half pipe, the outer surface of the upper half pipe is provided with a plurality of outwardly protruding flanges, the outer surface of the lower half pipe is provided with a plurality of buckling portions, and the plurality of buckling portions are buckled to the plurality of flanges respectively to connect the upper half pipe with the lower half pipe.

[0011] Further, the plurality of flanges extend along the length direction of the upper half pipe, and the plurality of buckling portions are arranged at intervals along the length direction of the lower half pipe.

[0012] Further, the sound attenuation pipe comprises a main pipe body and a branch pipe body, the plurality of positioning portions abut against the outer surface of the main pipe body, both ends of the main pipe body are communicated with the two openings, the branch pipe body is located in the resonance cavity, the branch pipe body is connected to the outer surface of the main pipe body, and both ends of the branch pipe body are communicated with the main pipe body and the resonance cavity respectively.

[0013] Further, the branch pipe body is in a bent structure.

[0014] Further, the sound attenuation pipe is sound attenuation cotton.

[0015] Further, the sound attenuation pipe is made of PET sound attenuation cotton.

[0016] A car comprises the intake system sound attenuation device.

[0017] The beneficial effects of the utility model lie in:

[0018] The intake system sound attenuation device and the car comprising the same of the utility model install and arrange the sound attenuation pipe in the resonance cavity and communicate both ends with two openings, abut the outer surface of the sound attenuation pipe through the plurality of positioning portions, thereby realizing the installation and positioning of the sound attenuation pipe in the resonance cavity part, making the sound attenuation capacity of the intake system sound attenuation device better, the sound attenuation frequency band wider, and the application can adjust the corresponding sound attenuation frequency, having the characteristics of strong practicability, short change period and low cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the intake system sound attenuation device of the utility model embodiment.

[0020] Figure 2 It is a structural schematic view of the resonance cavity lower cover and the sound attenuation pipe of the utility model embodiment.

[0021] Figure 3 It is a structural schematic view of the resonance cavity lower cover of the utility model embodiment.

[0022] Figure 4 It is a structural schematic view of the sound attenuation pipe of the utility model embodiment.

[0023] Figure 5 Another perspective view of the sound attenuation pipe according to an embodiment of the present application.

[0024] Figure 6 A structure diagram of the resonant cavity upper cover according to an embodiment of the present application.

[0025] Explanation of reference signs:

[0026] Resonant cavity component 1

[0027] Resonant cavity 11

[0028] Positioning portion 12

[0029] Opening 13

[0030] Resonant cavity lower cover 14

[0031] Protruding portion 141

[0032] Resonant cavity upper cover 15

[0033] Groove 151

[0034] Sound attenuation pipe 2

[0035] Upper half pipe 21

[0036] Flange 211

[0037] Lower half pipe 22

[0038] Buckling portion 221

[0039] Main pipe body 23

[0040] Sub pipe body 24 DETAILED DESCRIPTION

[0041] The following description of the embodiments with reference to the drawings is made by way of example of specific embodiments in which the present application can be implemented.

[0042] The embodiment discloses an automobile, which comprises an air intake system sound attenuation device, the air intake system sound attenuation device is installed on a clean side of an air intake system and is connected with an engine together, and the air intake system sound attenuation device has a sound attenuation effect.

[0043] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the intake system silencing device comprises a resonance cavity component 1 and a silencing pipe 2, the inner wall surface of the resonance cavity component 1 is provided with a plurality of outwardly protruding positioning portions 12, the resonance cavity component 1 is internally provided with a resonance cavity 11, and the plurality of positioning portions 12 abut against the outer surface of the silencing pipe 2 so that the silencing pipe 2 is positioned and arranged in the resonance cavity 11, and the two ends of the resonance cavity component 1 are both provided with openings 13, and the two ends of the silencing pipe 2 correspond to and communicate with the two openings 13 respectively.

[0044] The silencing pipe 2 is arranged in the resonance cavity 11, and the two ends of the silencing pipe 2 communicate with the two openings 13 of the resonance cavity component 1, the inner wall surface of the resonance cavity component 1 is provided with a plurality of outwardly protruding positioning portions 12, and the plurality of positioning portions 12 abut against the outer surface of the silencing pipe 2, so that the silencing pipe 2 is installed and positioned in the resonance cavity component 1, and the offset misalignment phenomenon of the silencing pipe 2 in use is effectively avoided, and the stability is high. At the same time, the silencing pipe 2 is installed and positioned in the resonance cavity component 1, so that the silencing capacity of the intake system silencing device is better, the silencing frequency band is wider, and the corresponding silencing frequency can be adjusted, and the device has the characteristics of strong practicability, short changing period and low cost. The intake system silencing device of the present application mainly eliminates the noise generated by engine combustion, vibration, airflow flow and the high-frequency noise problem caused by the poor dynamic balance of the rotor of the supercharger.

[0045] In the embodiment, the silencing pipe 2 is made of silencing cotton. The silencing capacity of the present application is better than that of the traditional perforated silencing device, the silencing frequency band is wider, and the material of the silencing pipe 2 can be changed according to the required silencing frequency. The traditional silencing device needs to change the size and the number of perforations of the silencing pipe 2 to achieve the silencing effect, which increases the cost and prolongs the changing period. However, the present application only needs to change the material to adjust the corresponding silencing frequency, and has the characteristics of strong practicability, short changing period and low cost.

[0046] Preferably, the silencing pipe 2 is made of PET silencing cotton, so that the density and air permeability of the silencing cotton can be adjusted according to the required silencing frequency, effectively avoiding the change of the mold, and the material changing period is shorter than the mold changing period. In addition, the change of the material selection does not increase the cost, while the change of the mold will generate manufacturing and processing costs.

[0047] The resonance cavity component 1 comprises a resonance cavity upper cover 15 and a resonance cavity lower cover 14, the two openings 13 are located on the resonance cavity lower cover 14, the silencing pipe 2 is installed in the resonance cavity lower cover 14, the resonance cavity upper cover 15 is connected to the resonance cavity lower cover 14, and the resonance cavity 11 is formed between the resonance cavity upper cover 15 and the resonance cavity lower cover 14. First, the silencing pipe 2 is installed and arranged in the resonance cavity lower cover 14, and then the resonance cavity upper cover 15 is connected to the resonance cavity lower cover 14 to form the resonance cavity 11 for silencing, and the overall structure is simple and the assembly is convenient.

[0048] The side of the resonant cavity lower cover 14 facing the resonant cavity upper cover 15 has a protruding part 141, the side of the resonant cavity upper cover 15 facing the resonant cavity lower cover 14 has a recess 151, and the protruding part 141 is snap-connected in the recess 151. When the resonant cavity upper cover 15 and the resonant cavity lower cover 14 are assembled, the resonant cavity upper cover 15 is sleeved on the protruding part 141 through the recess 151, so that the protruding part 141 is snap-connected in the recess 151, thereby realizing accurate positioning and assembly of the resonant cavity upper cover 15 and the resonant cavity lower cover 14, effectively avoiding the phenomenon of deviation and misplacement between the resonant cavity upper cover 15 and the resonant cavity lower cover 14, and having high stability.

[0049] The resonant cavity upper cover 15 and the resonant cavity lower cover 14 are welded to each other, and the resonant cavity upper cover 15 and the resonant cavity lower cover 14 are welded by vibration friction, so that the resonant cavity part 1 becomes an integral whole and has high connection strength.

[0050] The sound attenuation pipe 2 comprises an upper half pipe 21 and a lower half pipe 22, the outer surface of the upper half pipe 21 has a plurality of outward protruding flanges 211, and the outer surface of the lower half pipe 22 has a plurality of snap parts 221, which are respectively snap-connected to the plurality of flanges 211 to connect the upper half pipe 21 and the lower half pipe 22. Specifically, the two sides of the bottom of the upper half pipe 21 have flanges 211, and the two sides of the top of the lower half pipe 22 have a plurality of snap parts 221, and the top of the lower half pipe 22 is snap-connected to the two flanges 211 of the bottom of the upper half pipe 21 through the plurality of snap parts 221, so as to realize the assembly of the upper half pipe 21 and the lower half pipe 22, which is convenient to install and connect and has high connection stability; at the same time, the structure is simple, the processing and manufacturing are convenient, and the cost is low.

[0051] The plurality of flanges 211 extend along the length direction of the upper half pipe 21, and the plurality of snap parts 221 are arranged at intervals along the length direction of the lower half pipe 22, thereby further strengthening the connection strength of the upper half pipe 21 and the lower half pipe 22 and realizing high structural stability of the sound attenuation pipe 2.

[0052] The sound attenuation pipe 2 comprises a main pipe body 23 and a branch pipe body 24, the plurality of positioning parts 12 abut against the outer surface of the main pipe body 23, and the two ends of the main pipe body 23 are in communication with the two openings 13, the branch pipe body 24 is located in the resonant cavity 11, the branch pipe body 24 is connected to the outer surface of the main pipe body 23, and the two ends of the branch pipe body 24 are in communication with the main pipe body 23 and the resonant cavity 11, respectively. The shape of the branch pipe body 24 is a bending structure, and the shape of the branch pipe body 24 can be S-shaped or U-shaped.

[0053] The above only discloses preferred embodiments of the utility model, and of course cannot limit the scope of the utility model, so equivalent changes made according to the utility model claims still belong to the scope covered by the utility model.

Claims

1. An air intake system silencer device, characterized by, The resonant cavity component has a plurality of positioning portions protruding outward from the inner wall surface, and the resonant cavity component has a resonant cavity therein, and the plurality of positioning portions abut against the outer surface of the sound attenuation pipe to position the sound attenuation pipe in the resonant cavity.

2. The air intake system silencing device of claim 1, wherein The resonant cavity component includes a resonant cavity upper cover and a resonant cavity lower cover, and the two openings are located on the resonant cavity lower cover, and the sound attenuation pipe is installed in the resonant cavity lower cover, and the resonant cavity upper cover is connected to the resonant cavity lower cover, and the resonant cavity upper cover and the resonant cavity lower cover form the resonant cavity.

3. The air intake system silencing device of claim 2, wherein The resonant cavity upper cover and the resonant cavity lower cover are welded to each other; And / or, the resonant cavity lower cover has a protruding portion on the side facing the resonant cavity upper cover, and the resonant cavity upper cover has a groove on the side facing the resonant cavity lower cover, and the protruding portion is buckled and connected in the groove.

4. The air intake system silencing device of claim 1, wherein The sound attenuation pipe includes an upper half pipe and a lower half pipe, and the outer surface of the upper half pipe has a plurality of flanges protruding outward, and the outer surface of the lower half pipe has a plurality of buckling portions, and the plurality of buckling portions are respectively buckled and connected to the plurality of flanges to connect the upper half pipe and the lower half pipe.

5. The air intake system silencing device of claim 4, wherein The plurality of flanges extend along the length direction of the upper half pipe, and the plurality of buckling portions are arranged at intervals along the length direction of the lower half pipe.

6. The air intake system silencing device of claim 1, wherein The sound attenuation pipe includes a main pipe body and a branch pipe body, and the plurality of positioning portions abut against the outer surface of the main pipe body, and the two ends of the main pipe body are connected to the two openings, and the branch pipe body is located in the resonant cavity, and the branch pipe body is connected to the outer surface of the main pipe body, and the two ends of the branch pipe body are respectively connected to the main pipe body and the resonant cavity.

7. The air intake system silencing device of claim 6, wherein The branch pipe body has a bending structure.

8. The air intake system silencing device of claim 1, wherein The sound attenuation pipe is sound attenuation cotton.

9. The air induction system silencing device of claim 8, wherein, The sound attenuation pipe is made of PET sound attenuation cotton.

10. An automobile characterized by comprising: The intake system sound attenuation device includes the intake system sound attenuation device according to any one of claims 1-9.

Images