阅读说明：本技术 用于车辆的排气阀和车辆 (Exhaust valve for vehicle and vehicle ) 是由 杨金强 赵国旗 温泉 张寿琛 贺志杰 申力伟 张涛 翟增广 薛秀全 纪毓 刘雪松 于 2020-06-12 设计创作，主要内容包括：本发明公开了一种用于车辆的排气阀和车辆,其中用于车辆的排气阀包括：中间降噪排气结构、进气消音结构和排气消音结构。中间降噪排气结构内形成有扩张腔；进气消音结构的一端与车内连通,进气消音结构的另一端至少部分伸入中间降噪排气结构内且与扩张腔连通；排气消音结构的一端与车外连通,排气消音结构的另一端至少部分伸入中间降噪排气结构内且与扩张腔连通；中间降噪排气结构的截面积大于进气消音结构的截面积以及排气消音结构的截面积。该排气阀可通过多段结构进行排气以及降噪处理,可同时满足泄压要求以及起到消音减噪的作用,从而有效的保证了车内外的气压平衡以及大幅度消弱进入到车内的噪音,以提升车内驾乘环境。(The invention discloses an exhaust valve for a vehicle and the vehicle, wherein the exhaust valve for the vehicle comprises: the middle noise reduction and exhaust structure, the air inlet silencing structure and the exhaust silencing structure. An expansion cavity is formed in the middle noise-reducing exhaust structure; one end of the air inlet silencing structure is communicated with the inside of the vehicle, and the other end of the air inlet silencing structure at least partially extends into the middle noise reduction and exhaust structure and is communicated with the expansion cavity; one end of the exhaust silencing structure is communicated with the outside of the vehicle, and at least part of the other end of the exhaust silencing structure extends into the middle noise reduction exhaust structure and is communicated with the expansion cavity; the sectional area of the middle noise reduction and exhaust structure is larger than that of the air inlet silencing structure and that of the exhaust silencing structure. This discharge valve accessible multistage structure is discharged air and is fallen the noise treatment, can satisfy the pressure release requirement simultaneously and play the effect of amortization noise reduction to effectual inside and outside atmospheric pressure balance of having guaranteed the car and having weakened the noise that enters into the car by a wide margin, drive the environment in the promotion car.)

1. An exhaust valve (100) for a vehicle, comprising:

the middle noise-reducing exhaust structure (1) is internally provided with an expansion cavity (11);

one end of the air inlet silencing structure (2) is communicated with the inside of the vehicle, and at least part of the other end of the air inlet silencing structure (2) extends into the middle noise reduction and exhaust structure (1) and is communicated with the expansion cavity (11);

one end of the exhaust silencing structure (3) is communicated with the outside of the vehicle, and the other end of the exhaust silencing structure (3) at least partially extends into the middle noise reduction exhaust structure (1) and is communicated with the expansion cavity (11);

the middle noise-reducing exhaust structure (1) is communicated between the air inlet silencing structure (2) and the exhaust silencing structure (3), and the sectional area of the middle noise-reducing exhaust structure (1) is larger than that of the air inlet silencing structure (2) and that of the exhaust silencing structure (3).

2. The exhaust valve (100) for a vehicle according to claim 1, wherein the intake silencing structure (2) includes: the first silencing part (21) extends into the middle noise reduction and exhaust structure (1) and is communicated with the expansion cavity (11), and a plurality of first silencing holes (211) are formed in the peripheral wall of the first silencing part (21).

3. The exhaust valve (100) for a vehicle according to claim 2, wherein the exhaust silencing structure (3) includes: the second silencing part (31) extends into the middle noise reduction and exhaust structure (1) and is communicated with the expansion cavity (11), and a plurality of second silencing holes (311) are formed in the peripheral wall of the second silencing part (31).

4. Exhaust valve (100) for vehicles according to claim 1, characterized in that a dust exhaust valve (4) is provided on said exhaust silencing structure (3).

5. The exhaust valve (100) for a vehicle according to claim 1, wherein a sound absorbing member (5) is provided on an inner wall of the expansion chamber (11).

6. The exhaust valve (100) for a vehicle according to claim 3, wherein the first muffling portion (21) is disposed to be offset from the second muffling portion (31).

7. The exhaust valve (100) for a vehicle according to claim 6, wherein a height at which the first muffling portion (21) is disposed is higher than a height at which the second muffling portion (31) is disposed.

8. The exhaust valve (100) for a vehicle according to claim 6, wherein the intermediate noise-reducing exhaust structure (1) is configured as a cubic structure, and the first muffling portion (21) and the second muffling portion (31) are respectively connected to two adjacent side walls of the intermediate noise-reducing exhaust structure (1).

9. The exhaust valve (100) for a vehicle according to claim 3, wherein the intake silencing structure (2) further includes: first fixed part (22), the inner of first fixed part (22) with first amortization portion (21) intercommunication, the outer end of first fixed part (22) is just to being connected with interior plaque air-inlet grille (6), exhaust amortization structure (3) still includes: second fixed part (32), the inner of second fixed part (32) with second amortization portion (31) intercommunication, the outer end and side wall exhaust grid (7) of second fixed part (32) are just to being connected, interior plaque air-inlet grille (6) with be provided with inner panel (8) between side wall exhaust grid (7), the middle exhaust structure (1) of making an uproar that falls with inner panel (8) fixed connection.

10. A vehicle, characterized by comprising an exhaust valve (100) for a vehicle according to any one of claims 1-9.

Technical Field

The invention relates to the technical field of vehicles, in particular to an exhaust valve for a vehicle and the vehicle.

Background

When the vehicle door is opened and closed, the air pressure inside and outside the vehicle needs to be balanced, and the noise generated due to the difference between the air pressure inside and outside the vehicle when the vehicle door is closed needs to be reduced, so that an exhaust structure needs to be arranged on the vehicle body, but the existing exhaust structures are simple, the air pressure inside and outside the vehicle cannot be balanced, the functions of noise reduction cannot be realized, and an improved space exists.

Disclosure of Invention

In view of the above, the present invention is directed to an exhaust valve for a vehicle, which can simultaneously satisfy the pressure relief requirement and perform the noise reduction and silencing functions.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

an exhaust valve for a vehicle, comprising: the middle noise-reducing exhaust structure is internally provided with an expansion cavity; one end of the air inlet silencing structure is communicated with the inside of the vehicle, and the other end of the air inlet silencing structure at least partially extends into the middle noise reduction and exhaust structure and is communicated with the expansion cavity; one end of the exhaust silencing structure is communicated with the outside of the vehicle, and the other end of the exhaust silencing structure at least partially extends into the middle noise-reducing exhaust structure and is communicated with the expansion cavity; the middle noise-reducing exhaust structure is communicated between the air inlet silencing structure and the exhaust silencing structure, and the sectional area of the middle noise-reducing exhaust structure is larger than that of the air inlet silencing structure and that of the exhaust silencing structure.

Further, the intake silencing structure includes: the first silencing part extends into the middle noise reduction and exhaust structure and is communicated with the expansion cavity, and a plurality of first silencing holes are formed in the peripheral wall of the first silencing part.

Further, the exhaust silencing structure includes: the second silencing part extends into the middle noise reduction and exhaust structure and is communicated with the expansion cavity, and a plurality of second silencing holes are formed in the peripheral wall of the second silencing part.

Furthermore, the exhaust silencing structure is provided with a dust exhaust valve.

Furthermore, the inner wall of the expansion cavity is provided with a sound absorption piece.

Further, the first silencing part and the second silencing part are arranged in a staggered mode.

Further, the first sound-deadening portion is provided at a height higher than that of the second sound-deadening portion.

Further, the middle noise reduction and exhaust structure is configured to be a cubic structure, and the first silencing part and the second silencing part are respectively connected with two adjacent side walls of the middle noise reduction and exhaust structure.

Further, the intake silencing structure further includes: first fixed part, the inner of first fixed part with first amortization portion intercommunication, the outer end of first fixed part is just to being connected with interior plaque air-inlet grille, exhaust amortization structure still includes: the inner end of the second fixing part is communicated with the second silencing part, the outer end of the second fixing part is just opposite to the side wall exhaust grille and is connected with the inner plate, the inner panel is arranged between the inner trim panel air inlet grille and the side wall exhaust grille, and the middle noise reduction exhaust structure is fixedly connected with the inner plate.

Compared with the prior art, the exhaust valve for the vehicle has the following advantages:

the exhaust valve for the vehicle can perform exhaust and noise reduction treatment through a multi-section structure, can meet the pressure relief requirement and play a role in noise reduction, thereby effectively ensuring the air pressure balance inside and outside the vehicle and greatly reducing the noise entering the vehicle so as to improve the driving environment in the vehicle.

Another object of the invention is to propose a vehicle comprising an exhaust valve for a vehicle as described above, which vehicle has a better ride comfort.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a vent valve according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a discharge valve according to an embodiment of the present invention;

FIG. 3 is a partial schematic view of a discharge valve according to an embodiment of the present invention;

FIG. 4 is an exploded view of a discharge valve according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an intermediate noise reducing vent structure according to an embodiment of the present invention;

FIG. 6 is a schematic view of an intermediate noise reducing exhaust structure in cooperation with an exhaust silencing structure according to an embodiment of the present invention;

fig. 7 is a schematic structural view of an intake air silencing structure according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an intake air silencing structure according to an embodiment of the present invention;

fig. 9 is a schematic structural view of the connection between the intake silencing structure and the grille shutter of the interior trim panel according to the embodiment of the invention.

Description of reference numerals:

100-exhaust valve, 1-middle noise reduction exhaust structure, 11-expansion cavity, 2-air inlet silencing structure, 3-exhaust silencing structure, 21-first silencing part, 211-first silencing hole, 31-second silencing part, 311-second silencing hole, 4-dust exhaust valve, 5-sound absorbing part, 22-first fixing part, 12-upper shell structure, 13-lower shell structure, 6-inner decorative plate air inlet grille, 32-second fixing part, 7-side wall exhaust grille and 8-inner plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

An exhaust valve 100 for a vehicle according to an embodiment of the present invention will be described with reference to fig. 1 to 9.

The exhaust valve 100 for a vehicle according to an embodiment of the present invention may include: the device comprises a middle noise reduction exhaust structure 1, an air inlet silencing structure 2 and an exhaust silencing structure 3.

As shown in fig. 1-4, an expansion cavity 11 is formed in the intermediate noise-reducing exhaust structure 1, and the intermediate noise-reducing exhaust structure 1 can reduce noise and exhaust pressure through the expansion cavity 11, so as to reduce noise and pressure of the gas flowing into the intermediate noise-reducing exhaust structure 1.

Further, the one end and the car in-vehicle intercommunication of amortization structure 2 admits air, and the other end of amortization structure 2 admits air at least part stretch into in the middle exhaust structure 1 of making an uproar and with expand chamber 11 intercommunication of making an uproar to the one end and the car of amortization structure 3 intercommunication, the other end of amortization structure 3 at least part stretch into in the middle exhaust structure 1 of making an uproar and with expand chamber 11 intercommunication of making an uproar, wherein, the middle exhaust structure 1 intercommunication of making an uproar is between amortization structure 2 and the exhaust amortization structure 3 of admitting air. The air inlet silencing structure 2 and the exhaust silencing structure 3 have the noise reduction and silencing functions, the air inlet silencing structure 2 is suitable for reducing the pressure of the air in the vehicle in the expansion cavity 11 of the middle noise reduction and exhaust structure 1, and the reduced air can be continuously discharged out of the vehicle through the exhaust silencing structure 3, so that the balance of the air pressure inside and outside the vehicle is realized.

The sectional area of the middle noise reduction and exhaust structure 1 is larger than that of the air inlet silencing structure 2 and that of the exhaust silencing structure 3. Therefore, the gas entering the expansion cavity 11 from the air inlet silencing structure 2 or the air outlet silencing structure 3 can be effectively decompressed, and better noise reduction processing can be realized.

Because the air pressure inside and outside the vehicle needs to be balanced when the vehicle door is opened and closed and the noise generated due to the air pressure difference inside and outside the vehicle needs to be reduced when the vehicle door is closed, an exhaust structure needs to be arranged on the vehicle body, but the existing exhaust structures are simple, the air pressure inside and outside the vehicle cannot be balanced, and the functions of noise reduction cannot be realized.

Therefore, the embodiment of the invention provides a multi-stage noise-reduction exhaust valve 100, that is, the middle noise-reduction exhaust structure 1, the intake silencing structure 2 and the exhaust silencing structure 3 can respectively play a role in noise reduction, and the three structures are combined together, so that the pressure relief requirement is met, and the functions of noise reduction and noise reduction can be played.

The exhaust principle is explained by taking the door closed as an example: during the exhaust, the air current gets into air intake silencing structure 2 in from the car, later flows into expansion chamber 11 through air intake silencing structure 2, decompresses the pressure of air current in the car in expansion chamber 11, and the air current after the decompression discharges outside the car through exhaust silencing structure 3, makes the car internal pressure reduce simultaneously and balances outside the car to the better balance of the inside and outside pressure of car has been realized.

Description of intake noise reduction principle: after the noise got into exhaust amortization structure 3 outside the car, the low and medium frequency noise was absorbed, later get into expansion chamber 11 through exhaust amortization structure 3, low and medium frequency noise and medium and high frequency noise further are absorbed in expansion chamber 11, the noise after the reduction gets into air intake amortization structure 2, the noise further is absorbed and is decomposed in air intake amortization structure 2, the noise that gets into in the car at last can be weakened by a wide margin, thereby realized effectual noise reduction, less with the noise in guaranteeing the car, and then promote and ride the travelling comfort.

According to the exhaust valve 100 for the vehicle, the exhaust valve 100 can perform exhaust and noise reduction treatment through a multi-section structure, and can simultaneously meet the pressure relief requirement and play a role in noise reduction, so that the air pressure balance inside and outside the vehicle is effectively ensured, the noise entering the vehicle is greatly reduced, and the driving environment in the vehicle is improved.

With reference to the embodiments shown in fig. 1, 3, 4 and 7, the intake silencer structure 2 includes: the first silencing part 21 extends into the middle noise reduction and exhaust structure 1 and is communicated with the expansion cavity 11, and a plurality of first silencing holes 211 are formed in the peripheral wall of the first silencing part 21. Specifically, the first muffling portion 21 is configured as a first cylindrical structure, the inner end of the first cylindrical structure is open to communicate with the expansion cavity 11, and a plurality of first muffling holes 211 are formed in the peripheral wall of the first cylindrical structure, the plurality of first muffling holes 211 are uniformly distributed in the peripheral wall of the first cylindrical structure, during the process that the air flow flows into the expansion cavity 11 from the air intake muffling structure 2, a part of the air flow flows into the expansion cavity 11 from the inner end of the first cylindrical structure, and another part of the air flow flows into the expansion cavity 11 from the first muffling holes 211 to perform a shunting function, when the air flow passes through the plurality of first muffling holes 211, the frequency spectrum of the air flow noise moves to a high frequency or an ultra-high frequency, so that the audible component in the frequency spectrum is significantly reduced, thereby achieving a noise reduction function.

Alternatively, the inner end of the first sound-deadening portion 21 may be closed such that the communication hole between the first sound-deadening portion 21 and the expansion chamber 11 has only the first sound-deadening hole 211, and all the communication holes are replaced with the first sound-deadening holes 211, thereby improving the noise reduction effect.

The principle of noise reduction from the expansion chamber 11 into the intake silencer structure 2 is substantially the same as described above and therefore will not be described in detail here.

With reference to the embodiments shown in fig. 1, 2, 3, 4 and 6, the exhaust silencing structure 3 includes: and the second silencing part 31, the second silencing part 31 extends into the middle noise reduction exhaust structure 1 and is communicated with the expansion cavity 11, and a plurality of second silencing holes 311 are formed on the peripheral wall of the second silencing part 31. Specifically, the second muffling portion 31 is configured as a second cylindrical structure, the inner end of the second cylindrical structure is open to communicate with the expansion chamber 11, and a plurality of second muffling holes 311 are formed in the peripheral wall of the second cylindrical structure, the plurality of second muffling holes 311 are uniformly distributed in the peripheral wall of the second cylindrical structure, during the process that the air flow flows into the expansion chamber 11 from the exhaust muffling structure 3, a part of the air flow flows into the expansion chamber 11 from the inner end of the second cylindrical structure, and another part of the air flow flows into the expansion chamber 11 from the second muffling holes 311 to perform a shunting function, when the air flow passes through the plurality of second muffling holes 311, the frequency spectrum of the air flow noise is shifted to a high frequency or an ultra-high frequency, so that the audible component in the frequency spectrum is significantly reduced, thereby achieving a noise reduction function.

Alternatively, the inner end of the second muffling portion 31 may be blocked so that the communication hole between the second muffling portion 31 and the expansion chamber 11 has only the second muffling holes 311, and thus all the communication holes are replaced by the second muffling holes 311 to improve the noise reduction effect.

The principle of noise reduction from the expansion chamber 11 into the exhaust gas silencing structure 3 is basically the same as described above, and therefore, the description thereof is omitted.

As shown in fig. 1, 4 and 6, a dust exhaust valve 4 is disposed on the bottom wall of the exhaust silencing structure 3, the dust exhaust valve 4 is disposed outside the middle noise reduction exhaust structure 1, and the dust exhaust valve 4 is a one-way valve, so as to filter, collect and remove the foreign matters such as dust entering the middle noise reduction exhaust structure 1 from the outside of the vehicle, and prevent the foreign matters such as dust from entering the inside of the vehicle.

In addition, the dust exhaust valve 4 also has a pressure relief function, so as to relieve pressure after a large airflow outside the vehicle enters the exhaust silencing structure 3, thereby avoiding generating large noise and damaging the exhaust valve 100.

Referring to fig. 1, 3 and 4, the sound absorbing member 5 is disposed on the inner wall of the expansion cavity 11, and the sound absorbing member 5 can effectively absorb medium and high frequency noise entering the expansion cavity 11, so as to achieve an effective noise reduction effect of the expansion cavity 11.

The sound absorbing member 5 may be disposed at a position opposite to or close to the first and second muffling holes 211 and 311, so as to effectively absorb and reduce noise of noise flowing out of the first and second muffling holes 211 and 311.

Alternatively, the inner wall of the expansion chamber 11 may be filled with the sound absorbing member 5 to achieve a better noise reduction effect. The arrangement position and the number of the sound absorbing members 5 can be selected appropriately according to the specific situation.

Wherein, inhale sound piece 5 can be for inhaling the sound cotton to make and inhale the sound noise reduction effect better, inhale the cotton bonding of sound and fix on the inner wall in expansion chamber 11.

In summary, the noise is transmitted through the multiple pipes and decomposed by the noise of the multiple sound-deadening holes, and the sound is absorbed by the sound-absorbing member 5, so that the external noise is reduced from multiple ways, and less noise enters the vehicle, thereby improving the driving environment in the vehicle.

As shown in fig. 2-6, the middle noise-reducing exhaust structure 1 is provided with an air inlet fitting hole and an exhaust fitting hole, the first sound-reducing portion 21 is adapted to extend into the expansion cavity 11 from the air inlet fitting hole, and the second sound-reducing portion 31 is adapted to extend into the expansion cavity 11 from the exhaust fitting hole, so as to achieve effective connection of the middle noise-reducing exhaust structure 1 with the air inlet sound-reducing structure 2 and the exhaust sound-reducing structure 3.

Wherein, middle exhaust structure 1 of making an uproar that falls includes: an upper shell structure 12 and a lower shell structure 13, the upper shell structure 12 and the lower shell structure 13 are connected to form the middle noise reduction and exhaust structure 1, and an expansion cavity 11 is defined between the upper shell structure 12 and the lower shell structure 13. Namely, the middle noise reduction exhaust structure 1 is set to be a split structure so as to be provided with the sound absorbing member 5 inside.

Of course, the middle noise reduction exhaust structure 1 may also be configured as an integrally formed structure to ensure the overall strength of the middle noise reduction exhaust structure 1.

According to some embodiments of the present invention, the first muffling portion 21 is offset from the second muffling portion 31. That is, it is ensured that the first muffling portion 21 and the second muffling portion 31 are not arranged in the right-to-right manner, so that the partial air flow flowing out of the first muffling portion 21 is prevented from directly flowing into the second muffling portion 31 without being subjected to the decompression of the expansion chamber 11, or the partial air flow flowing out of the second muffling portion 31 is prevented from directly flowing into the first muffling portion 21 without being subjected to the decompression of the expansion chamber 11, thereby further ensuring the noise reduction and decompression effects.

Referring to fig. 1, the first muffling portion 21 is disposed at a higher height than the second muffling portion 31. Thus, the first muffling portion 21 and the second muffling portion 31 are arranged so as to be shifted in the height direction, so that the air flow flowing out of the first muffling portion 21 can flow into the second muffling portion 31 after being subjected to noise reduction and pressure reduction in the expansion chamber 11, and the air flow flowing out of the second muffling portion 31 can flow into the first muffling portion 21 after being subjected to noise reduction and pressure reduction in the expansion chamber 11.

In conjunction with the embodiment shown in fig. 2 and 3, the middle noise reduction exhaust structure 1 is configured as a cubic structure, and the first muffling portion 21 and the second muffling portion 31 are respectively connected to two adjacent side walls of the middle noise reduction exhaust structure 1. That is, the first muffling portion 21 and the second muffling portion 31 are arranged approximately perpendicularly. Thus, even if the first muffling portion 21 and the second muffling portion 31 are arranged offset in the installation direction, the air flow flowing out of the first muffling portion 21 can be made to flow into the second muffling portion 31 after being subjected to noise reduction and pressure reduction in the expansion chamber 11, and the air flow flowing out of the second muffling portion 31 can be made to flow into the first muffling portion 21 after being subjected to noise reduction and pressure reduction in the expansion chamber 11.

As shown in fig. 1 to 4, the intake silencing structure 2 further includes: the inner end of the first fixing portion 22 is communicated with the first silencing portion 21, and the outer end of the first fixing portion 22 may be configured as a first fixing flange, and the first fixing flange is connected to the interior panel air inlet grille 6 in a facing manner (refer to fig. 3, 7, 8 and 9) so that the air in the vehicle can enter the air inlet silencing structure 2 through the interior panel air inlet grille 6. The first fixing flange and the interior trim panel air inlet grille 6 can be fixedly connected through a hot-melt welding or puncture welding process.

Further, the exhaust silencing structure 3 further includes: and the inner end of the second fixing part 32 is communicated with the second silencing part 31, the outer end of the second fixing part 32 can be constructed as a second fixing flange, and the second fixing flange is in direct-facing connection with the side wall exhaust grille 7 (refer to fig. 2 and 3), so that the air outside the vehicle enters the exhaust silencing structure 3 through the side wall exhaust grille 7, and preliminary noise reduction is realized through the side wall exhaust grille 7. The second fixing flange and the side wall exhaust grille 7 can be connected and fixed in a fixing mode of gluing or bolt connection and sealing by a sealing sponge block.

And furthermore, an inner plate 8 (a side wall inner plate) is arranged between the inner trim plate air inlet grille 6 and the side wall exhaust grille 7, and the middle noise reduction exhaust structure 1 is fixedly connected with the inner plate 8 so as to stably arrange the middle noise reduction exhaust structure 1 between the inner trim plate air inlet grille 6 and the side wall exhaust grille 7. Specifically, the middle noise reduction exhaust structure 1 is provided with fixing lugs, and is fixed with the inner plate 8 through the fixing lugs in a threaded manner.

The inner plate 8 is provided with an avoiding through hole for avoiding the first silencing part 21, and the first silencing part 21 is suitable for penetrating through the avoiding through hole to be connected with the middle noise reduction and exhaust structure 1.

Specifically, when exhausting, the in-vehicle air flow enters the air inlet silencing structure 2 through the interior trim panel air inlet grille 6, and disperses into the expansion cavity 11 through the plurality of first silencing holes 211 on the first silencing part 21, the pressure of the in-vehicle air flow is reduced in the expansion cavity 11, the reduced air flow is reduced in pressure again through the plurality of second silencing holes 311 on the second silencing part 31 and enters the exhaust silencing structure 3, and then the air flow is exhausted through the side wall exhaust grille 7 and the dust exhaust valve 4, and meanwhile, the in-vehicle pressure is reduced to be balanced with the outside of the vehicle, so that the good balance of the in-vehicle and outside pressures is realized.

When the noise outside the vehicle enters from the side wall exhaust grille 7, the side wall exhaust grille 7 can absorb and attenuate the noise as a transmission medium, after the noise enters the exhaust silencing structure 3, the noise enters the expansion cavity 11 through the second silencing holes 311 on the second silencing part 31, the low-medium frequency noise is absorbed, the low-medium frequency noise is further absorbed in the expansion cavity 11, meanwhile, the sound absorbing part 5 in the expansion cavity 11 absorbs the high-medium frequency noise, the reduced noise enters the air inlet silencing structure 2 through the first silencing holes 211 on the first silencing part 21, the noise in the process is further absorbed and decomposed, and finally, after the noise passes through the air inlet grille 6 of the air inlet plate, the noise entering the vehicle can be greatly attenuated, so that an effective noise reduction function is realized, the noise inside the vehicle is less, and the driving comfort is further improved.

The specific assembly and installation process of the exhaust valve 100 is as follows: firstly, the dust exhaust valve 4 is installed on the exhaust silencing structure 3, then the sound absorption piece 5 is installed in the expansion cavity 11, the assembled exhaust silencing structure 3 and the middle noise reduction exhaust structure 1 are assembled and connected, then the assembled integral structure is vertically pushed into the cavity between the interior trim panel air inlet grille 6 and the side wall exhaust grille 7 and pushed to the installation position of the inner panel 8, the middle noise reduction exhaust structure 1 and the inner panel 8 are respectively installed in a threaded mode, the exhaust silencing structure 3 and the side wall exhaust grille 7 are installed in a matched mode, finally, the integral structure installed by matching the interior trim panel air inlet grille 6 and the air inlet silencing structure 2 is pushed in and installed in place, the middle noise reduction exhaust structure 1 is assembled and connected, and therefore the assembly and installation of the exhaust valve 100 are completed.

A vehicle according to another aspect of the embodiment of the present invention includes the exhaust valve 100 for a vehicle described in the above embodiment. Other configurations of the vehicle, such as transmissions, braking systems, steering systems, etc., are known in the art and well known to those skilled in the art, and therefore will not be described in detail herein.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.