Air inlet system assembly and vehicle

Abstract

The utility model provides an air inlet system assembly and a vehicle. The air inlet system assembly comprises an air inlet assembly, a silencer, an air filter and a plurality of silencing resonance pieces. The silencer is communicated between the air inlet assembly and the air filter, and the silencing resonance piece is arranged on the silencer and communicated with the silencer. By means of the arrangement, the silencing cavity is additionally arranged on the air inlet system assembly, noise transmission is reduced, the silencing capacity of the air inlet system assembly is improved, and then the NVH performance of a vehicle and the riding comfort of the vehicle are improved.

Description

Technical Field

[0001] The present application relates to the field of transportation vehicles, and in particular to an air intake system assembly and a vehicle. Background Art

[0002] With the rapid development of the automotive industry and the improvement of people's quality of life, there are higher demands for all-round vehicle performance, with vehicle comfort being a particular concern for customers. Vehicle noise is a significant factor impacting vehicle comfort. Trucks, for example, require a high-position air intake system due to their operating environment and working conditions. The high-position air intake duct is fixed to the rear of the cab. Due to its large intake volume, the air pulsation strongly excites the duct wall, resulting in high noise levels within the duct itself and at the intake port. This noise can also radiate through the duct wall and intake port into the vehicle, causing excessive noise inside the vehicle and impacting the driving experience.

[0003] Furthermore, because truck engines or range extenders are large in displacement and operate at low speeds, they transmit noise to the high-mounted intake manifold when in operation, further increasing interior noise and impacting the vehicle's NVH (noise, vibration, and harshness) performance. Furthermore, space constraints prevent the design of air filters with larger filter volumes, resulting in poor noise reduction capabilities and, consequently, poor overall intake system noise reduction, increased interior noise, and poor NVH performance.

[0004] Therefore, it is necessary to provide an improved air intake system assembly to solve some or all of the above problems. Utility Model Content

[0005] The present application provides an air intake system assembly and a vehicle with good quietness effect.

[0006] The present application provides an intake system assembly, comprising an intake component, a muffler, an air filter, and a plurality of silencer resonators; the muffler is connected between the intake component and the air filter, and the silencer resonators are arranged on the muffler and communicated with the muffler.

[0007] Furthermore, there are a plurality of the muffler resonators, which are spaced apart around the muffler.

[0008] Furthermore, the intake system assembly also includes a connecting pipe; the connecting pipe is connected between the muffler and the muffler resonator; in the axial direction of the connecting pipe, the cross-sectional area of ​​the connecting pipe is smaller than the cross-sectional area of ​​the muffler and the muffler resonator cavity.

[0009] Furthermore, the muffler includes an upper cavity and a lower cavity; the upper cavity is connected to the air intake assembly; a portion of the lower cavity is bent and extended from the upper cavity and is connected to the air filter; the muffler is L-shaped.

[0010] Furthermore, the noise-absorbing resonant component is located below the upper cavity portion and is communicated with the lower cavity portion; and both the noise-absorbing resonant component and the muffler are provided with reinforcing ribs.

[0011] Furthermore, the air intake assembly includes an air intake body and a bellows; one end of the bellows is connected to the air intake body, and the other end is connected to the upper cavity.

[0012] Furthermore, the air intake assembly further includes a vibration isolation pad provided on the air intake body, and the vibration isolation pad is used to fix the air intake assembly and reduce the transmission of vibration of the air intake assembly.

[0013] Furthermore, the air intake system assembly also includes an air filter pipe; one end of the air filter pipe is connected to the air filter, and the other end is connected to the engine.

[0014] Furthermore, the air intake system assembly also includes a connecting bracket; the muffler and the air filter are arranged on the connecting bracket, and the connecting bracket is fixed to the vehicle chassis or cab.

[0015] The present application also provides a vehicle, comprising an engine and the intake system assembly as described above, wherein the intake system assembly is connected to the engine.

[0016] Compared with the prior art, the intake system assembly of the present application increases the silencer cavity of the intake system assembly, reduces the propagation of noise, improves the silencer capability of the intake system assembly, and thus improves the NVH performance of the vehicle and the ride comfort of the vehicle by arranging a silencer between the intake component and the air filter and adding a silencer resonator to the silencer.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the specification and, together with the description, serve to explain the principles of the specification.

[0019] Figure 1 It is a three-dimensional diagram of the intake system assembly of this application.

[0020] Figure 2 yes Figure 1 Right side view of the center air intake system assembly.

[0021] Figure 3 yes Figure 1 Left side view of the center air intake system assembly.

[0022] Figure 4 yes Figure 1 Front view of the center air intake system assembly.

[0023] Figure 5 yes Figure 1 Top view of the center air intake system assembly.

[0024] Figure 6 yes Figure 1 A three-dimensional diagram of the assembly of the middle muffler and the muffler resonator.

[0025] Figure 7 yes Figure 6 Schematic diagram of the cross-section of AA.

[0026] Figure 8 This is a comparison chart of the noise transmission loss at different frequencies between the intake system assembly of the present application and a traditional muffler system (without a muffler and a muffler resonator).

[0027] Explanation of the accompanying numbers: 1-intake assembly; 11-intake body; 111-intake shell; 112-reinforcement rib; 12-bellows; 121-tube body; 122-clamping end; 13-vibration isolation pad; 2-muffler; 21-upper cavity; 22-lower cavity; 23-intake end; 24-outlet end; 3-air filter; 4-silencer resonator; 5-connecting pipe; 6-air filter pipe; 7-connecting bracket. DETAILED DESCRIPTION

[0028] Here, the technical solutions in the embodiments (or "implementations") of the present application will be clearly and completely described in conjunction with the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0029] If there are terms related to directional indications or positional relationships in the embodiments of this application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings); if the specific posture changes, the directional indication or positional relationship will also change accordingly. In addition, the terms "first" and "second" in the embodiments of this application are only used for the purpose of convenience of description and should not be understood as indicating or implying relative importance.

[0030] like Figures 1 to 4As shown, the intake system assembly of the present application includes an intake assembly 1, a muffler 2, an air filter 3, a muffler resonator 4, a connecting pipe 5, an air filter pipe 6, and a connecting bracket 7. The muffler 2 is connected between the intake assembly 1 and the air filter 3, and the muffler resonator 4 is provided in the muffler 2 and is connected to the muffler 2.

[0031] Whether the noise is transmitted from the intake assembly 1 to the air filter 3 or from the air filter 3 to the intake assembly 1, it will pass through the muffler 2 and oscillate back and forth within the cavity of the muffler 2, causing the noise to be repeatedly reflected, superimposed, and interfered with, thereby reducing the noise transmission and improving the noise reduction capability of the intake system assembly. The muffler resonator 4 is connected to the muffler 2, increasing the space for noise oscillation and transmission, further reducing the noise and improving the overall quietness of the intake system assembly.

[0032] In one embodiment, the air intake assembly 1 includes an air intake body 11, a bellows 12, and a vibration isolation pad 13. External gas enters the air intake system assembly through the air intake body 11. The air intake body 11 includes an air intake shell 111 and reinforcing ribs 112 provided on the air intake shell 111. A plurality of reinforcing ribs 112 are provided, and are provided at intervals on the air intake shell 111 to increase the overall strength of the air intake body 11. At the same time, the strength of the air intake body 11 is increased by the reinforcing ribs 112, weakening the excitation of the air intake pulsation on the shell wall of the air intake shell 111 due to the large air intake volume of the air intake body 11, avoiding excessive vibration amplitude of the air intake shell 111, thereby reducing the noise of the air intake body 11 and its air inlet.

[0033] One end of the bellows 12 is connected to the intake body 11, and the other end, facing away from the intake body 11, is connected to the muffler 2. The bellows 12 is a rubber hose that can be stretched and compressed during use. This arrangement isolates the transmission of vibrations between the intake body 11 and the muffler 2, preventing increased noise. Furthermore, connecting the intake body 11 and the muffler 2 via the bellows 12 makes installation and use of the two bodies more convenient, accommodating environments with high vibration levels.

[0034] The bellows 12 includes a tube body 121 and a snap-fit ​​end 122 connected to the tube body 121. The snap-fit ​​end 122 is trumpet-shaped and snap-fits to the muffler 2. Furthermore, a portion of the muffler 2 is located within the snap-fit ​​end 122, and the snap-fit ​​end 122 and the muffler 2 can be fixed together by a tie.

[0035] The vibration isolation pad 13 is provided on the air intake body 11. The vibration isolation pad 13 is used to fix the air intake assembly 1 and reduce the transmission of vibration of the air intake assembly 1. Specifically, the vibration isolation pad 13 can be made of a flexible material such as rubber or plastic, and then reduce vibration according to the material properties of the vibration isolation pad 13. In order to improve the stability of the vibration isolation pad 13 in fixing the air intake assembly 1, a plurality of vibration isolation pads 13 are provided, and are respectively provided on opposite sides of the air intake shell 111. While the vibration isolation pads 13 are relatively provided, a plurality of vibration isolation pads 13 can also be provided on the same side of the air intake shell 111 at intervals.

[0036] Further integration Figures 5 to 7 As shown, in one embodiment, the muffler 2 includes an upper chamber 21, a lower chamber 22, an air inlet end 23 provided in the upper chamber 21, and an air outlet end 24 provided in the lower chamber 22. The upper chamber 21 is connected to the air intake assembly 1, and the lower chamber 22 is connected to the air filter 3. Specifically, the air inlet end 23 protrudes from the upper chamber 21 and is disposed within the engaging end 122, that is, one end of the bellows 12 is connected to the upper chamber 21. The air outlet end 24 protrudes from the lower chamber 22 and is connected to the air filter 3.

[0037] In the direction of the protrusion of the air inlet end 23, the cross-section of the upper cavity portion 21 is larger than the cross-section of the air inlet end 23; in the direction of the protrusion of the air outlet end 24, the cross-section of the lower cavity portion 22 is larger than the cross-section of the air outlet end 24. With this arrangement, since the air inlet end 23 and the air outlet end 24 have different cross-sectional ratios with the cavity of the muffler 2, when the noise sound waves are transmitted, they oscillate back and forth during the transmission process through the sudden change (expansion or contraction) of the pipe cross-section, thereby achieving the effect of muffler. When the noise sound waves propagate in the muffler 2, the sudden change of the pipe cross-section twice between the air inlet end 23 and the upper cavity portion 21, and between the air inlet end 23 and the lower cavity portion 22 can greatly reduce the noise, further improving the muffler effect of the muffler 2.

[0038] Part of the lower cavity 22 is bent and extended from the upper cavity 21, so that the muffler 2 is L-shaped. This arrangement allows the noise in the muffler 2 to contact the inner wall of the muffler 2 with a greater probability, so that the noise is repeatedly vibrated, increasing the transmission loss of the noise and improving the noise reduction effect.

[0039] In one embodiment, multiple muffler resonators 4 may be provided. Furthermore, depending on the noise reduction requirements, the number of muffler resonators 4 may be one, two, four, six, or the like. When multiple muffler resonators 4 are provided, they are spaced apart around the muffler 2 to increase the overall muffler cavity of the intake system assembly and further reduce noise transmission losses. Multiple muffler resonators 4 are spaced apart to facilitate removal and adjustment.

[0040] The silencer resonator 4 is located below the upper cavity 21 and communicates with the lower cavity 22. Both the silencer resonator 4 and the muffler 2 are provided with reinforcing ribs to increase the strength of the silencer resonator 4 and the muffler 2 and prevent the silencer resonator 4 and the muffler 2 housing from vibrating when noise oscillates.

[0041] In one embodiment, a connecting pipe 5 is connected between the muffler 2 and the muffler resonator 4. In the axial direction of the connecting pipe 5, the cross-sectional area of ​​the connecting pipe 5 is smaller than the cross-sectional area of ​​the muffler 2 and the cavity of the muffler resonator 4. This arrangement allows noise to oscillate back and forth between the muffler 2 and the muffler resonator 4 due to the sudden changes in the pipe cross-section between the muffler 2 and the connecting pipe 5, and between the connecting pipe 5 and the muffler resonator 4, achieving a sound attenuation effect and improving the quietness of the intake system assembly.

[0042] One end of the air filter pipe 6 is connected to the air filter 3, and the other end is connected to the engine. The muffler 2 and the air filter 3 are arranged on a connecting bracket 7, and the connecting bracket 7 is fixed to the vehicle chassis or the cab.

[0043] In this application, connecting tube 5 can be replaced as needed. Specifically, connecting tube 5 can be of different lengths and diameters, depending on the noise frequencies to be eliminated. A muffler resonator 4 is mounted on muffler 2. Noise waves resonate within muffler resonator 4, converting most of the energy into heat, thereby achieving noise reduction. The structure of air filter 3 is equivalent to an expansion chamber, filtering dust and impurities from the air while also providing a noise reduction function.

[0044] like Figure 8 As shown, the intake system assembly of the present application significantly increases noise transmission loss compared to conventional muffler systems without the muffler 2 and the muffler resonator 4, effectively improving the muffler effect of the intake system assembly of the present application. The muffler effect of the intake system assembly of the present application is particularly significant when eliminating noise in the 400Hz-900Hz range.

[0045] The present application also provides a vehicle, comprising an engine (not shown), a cab (not shown), a vehicle chassis (not shown), and an air intake system assembly as described above, the air intake system assembly being connected to the engine. The air intake assembly 1 is fixed to the rear wall of the cab via a vibration isolation pad 13, and the muffler 2 and the air filter 3 are fixed to the vehicle chassis via a connecting bracket 7. When the vehicle is running, the operating noise inside the engine will be transmitted to the outside world through the air intake system assembly, and the air intake system assembly is mainly used to eliminate the noise transmitted from the inside of the engine.

[0046] The vehicle of the present application is equipped with an air intake system assembly. After the noise passes through the air filter 3, the muffler 2 and the muffler resonator 4, the transmission loss of the noise can be greatly increased, the muffler effect can be improved, and the NVH performance of the vehicle, the ride comfort of the vehicle and people's user experience can be improved.

[0047] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.

Claims

1. An air intake system assembly, characterized in that: The invention comprises an air intake assembly, a muffler, an air filter and a plurality of muffler resonators; the muffler is connected between the air intake assembly and the air filter, and the muffler resonators are arranged on the muffler and communicated with the muffler; The air intake system assembly further includes a connecting pipe; the connecting pipe is connected between the muffler and the muffler resonator.

2. The air intake system assembly according to claim 1, characterized in that: There are a plurality of muffler resonators, which are spaced apart around the muffler.

3. The air intake system assembly according to claim 1, characterized in that: In the axial direction of the connecting pipe, the cross-sectional area of ​​the connecting pipe is smaller than the cross-sectional areas of the muffler and the cavity of the muffler resonator.

4. The air intake system assembly according to claim 1, characterized in that: The muffler includes an upper cavity and a lower cavity; the upper cavity is connected to the air intake assembly; a portion of the lower cavity is bent and extended from the upper cavity and is connected to the air filter; the muffler is L-shaped.

5. The air intake system assembly according to claim 4, characterized in that: The noise-reducing resonant component is located below the upper cavity portion and is communicated with the lower cavity portion; the noise-reducing resonant component and the muffler are both provided with reinforcing ribs.

6. The air intake system assembly according to claim 4, characterized in that: The air intake assembly includes an air intake body and a bellows; one end of the bellows is connected to the air intake body, and the other end is connected to the upper cavity.

7. The air intake system assembly according to claim 6, characterized in that: The air intake assembly further includes a vibration isolation pad provided on the air intake body, and the vibration isolation pad is used to fix the air intake assembly and reduce the transmission of vibration of the air intake assembly.

8. The air intake system assembly according to claim 1, characterized in that: The air intake system assembly further comprises an air filter pipe; one end of the air filter pipe is connected to the air filter, and the other end is connected to the engine.

9. The air intake system assembly according to claim 1, characterized in that: The air intake system assembly further includes a connecting bracket; the muffler and the air filter are arranged on the connecting bracket, and the connecting bracket is fixed to the vehicle chassis or the cab.

10. A vehicle, characterized in that: The invention comprises an engine and an intake system assembly according to any one of claims 1 to 9, wherein the intake system assembly is in communication with the engine.

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