CN212473018U

CN212473018U - Vehicle and exhaust system thereof

Info

Publication number: CN212473018U
Application number: CN202021073679.4U
Authority: CN
Inventors: 刘雪松; 赵国旗; 温泉; 张寿琛; 贺志杰; 李华; 纪毓; 武文凯; 薛秀全; 张涛; 翟增广; 苑雪雷; 张阳; 刘强; 宋贺; 郭新飞; 王健; 时磊
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2020-06-11
Filing date: 2020-06-11
Publication date: 2021-02-05
Anticipated expiration: 2030-06-11

Abstract

The present disclosure relates to a vehicle and an exhaust system thereof, the exhaust system comprising: the framework (1) is arranged on the vehicle body and is provided with an air outlet (11) communicated with the inside and the outside of the vehicle and an air curtain (12) which is arranged on the air outlet and can be opened and closed; the outer protective cover (2) is connected with the framework, and an accommodating cavity is formed between the outer protective cover and the framework; and the turbulence body (3) is arranged in the accommodating cavity and is provided with a multi-section bending structure so as to change the circulation path of airflow and noise in the accommodating cavity. Therefore, when the airflow in the vehicle is discharged outwards, the turbolator can buffer the air entering the accommodating cavity, so that the problems that the opening angle and the vibration frequency of the air curtain are large due to overlarge pressure difference are avoided, and the noise is reduced; when the gas curtain is opened, the disturbing fluid and the outer shield can play a role in blocking partial noise in the external environment, and simultaneously, the noise entering the accommodating cavity absorbs and reflects for many times under the action of the disturbing fluid, so that the noise transmitted to a passenger cabin is effectively reduced, and the driving experience and the quality of the whole vehicle are improved.

Description

Vehicle and exhaust system thereof

Technical Field

The present disclosure relates to the field of vehicle exhaust technology, and in particular, to a vehicle and an exhaust system thereof.

Background

The vehicle exhaust system is used for balancing air pressure inside and outside a passenger compartment, avoids the situation that the door closing force is large due to overhigh pressure inside the vehicle when the door is closed, and simultaneously prevents the influence on the physical feeling of passengers, such as eardrum noise, breathing difficulty and the like. When the running speed of the vehicle changes sharply and the vehicle-mounted air conditioner works in an internal and external circulation mode, an air outlet in an exhaust system is automatically opened to balance the internal and external pressure of the vehicle and improve the comfort level of the vehicle; when the vehicle runs stably and the differential pressure inside and outside the vehicle is balanced, the air outlet is in a closed state, so that external noise is prevented from being transmitted into a passenger compartment. However, the air outlet not only serves as a passage for air to flow in and out, but also can transmit sound, and in the flowing change of air flow in the vehicle, the driving process of the vehicle and the use process of the vehicle-mounted air conditioner, due to the fact that the air outlet is opened and closed by vibration, noise can enter the vehicle through the air outlet, and the driving experience of a user is influenced.

SUMMERY OF THE UTILITY MODEL

A first object of the present disclosure is to provide an exhaust system of a vehicle, which can solve a technical problem that noise is transmitted into a passenger compartment through an exhaust port to affect a riding experience.

A second object of the present disclosure is to provide a vehicle comprising an exhaust system of the vehicle provided by the present disclosure.

In order to achieve the above object, the present disclosure provides an exhaust system of a vehicle, including: the framework is used for being installed on a vehicle body and is provided with an air outlet communicated with the inside and the outside of the vehicle and an air curtain which is installed on the air outlet and can be opened and closed; the outer shield is connected with the framework, and an accommodating cavity is formed between the outer shield and the framework; and the fluid disturbing body is arranged in the accommodating cavity and is provided with a multi-section bending structure so as to change the circulation path of airflow and noise in the accommodating cavity.

Optionally, the outer shroud has and surpasss the extension board of skeleton, the spoiler is including being located hold the first multistage bending structure in the chamber and stretching out hold the second multistage bending structure in chamber, the exhaust system of vehicle has: in the first working process, the air flow in the vehicle enters from the air outlet, and partial air flow sequentially flows out through the first multi-section bending structure and the straight-through hole of the outer shield; and/or part of the airflow sequentially flows out through the second multi-section bending structure, the lateral openings between the extension plate and the fluid disturbing body; and in the second working process, part of external noise enters from the through hole of the outer shield and sequentially enters the vehicle through the first multi-section bending structure and the air outlet, and/or part of external noise enters from the extension plate and the side opening of the disturbing fluid and sequentially enters the vehicle through the second multi-section bending structure and the air outlet.

Optionally, the first multi-section bending structure is a Z-shaped structure which is obliquely arranged, an opening of the Z-shaped structure faces the outer shield, and a plurality of first ventilation openings which are communicated with the through hole and the air outlet and a plurality of second ventilation openings which are communicated with the outside and the accommodating cavity are formed in a connecting wall of the Z-shaped structure.

Optionally, the second multi-segment bending structure is configured as a multi-step structure, and a free end of the multi-step rack structure extends in the same direction as the extension plate and is fixedly connected with the extension plate.

Optionally, the through holes include a first through hole corresponding to the air outlet and second through holes located at two sides of the first through hole.

Optionally, a buckle is formed on one of the framework and the outer shield, and a clamping hole matched with the buckle in a clamping manner is formed on the other one of the framework and the outer shield.

Optionally, still be provided with the grid that a plurality of intervals set up on the air exit of skeleton, it is a plurality of the grid extends along upper and lower direction.

Optionally, the grille is disposed obliquely in an up-down direction, and the grille includes a first grille for guiding the airflow to flow toward the through opening of the outer shroud and a second grille for guiding the airflow to flow toward the extension plate of the outer shroud.

According to a second aspect of the present disclosure, there is also provided a vehicle comprising the exhaust system of the vehicle described above.

Optionally, be formed with the pilot hole on the automobile body of vehicle, the skeleton have with the annular card of pilot hole joint is protruding, just annular card protruding with be provided with the sealing member between the automobile body.

Through the technical scheme, when the airflow in the vehicle is discharged outwards, the spoiler can buffer the gas entering the accommodating cavity, so that the problems that the opening angle and the vibration frequency of the air curtain are large due to overlarge pressure difference are avoided, and the noise is reduced; when the gas curtain is opened, the disturbing fluid and the outer shield can play a role in blocking partial noise in the external environment, and simultaneously, the noise entering the accommodating cavity absorbs and reflects for many times under the action of the disturbing fluid, so that the noise transmitted to a passenger cabin is effectively reduced, and the driving experience and the quality of the whole vehicle are improved.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a schematic view of a prior art exhaust system for a vehicle;

FIG. 2 is a schematic structural view of an exhaust system of a vehicle provided in an exemplary embodiment of the present disclosure;

FIG. 3 is a schematic illustration of a frame in an exhaust system of a vehicle according to an exemplary embodiment of the present disclosure;

FIG. 4 is a schematic structural view of an outer shroud in an exhaust system of a vehicle provided in an exemplary embodiment of the present disclosure;

FIG. 5 is a schematic structural view of a spoiler in an exhaust system of a vehicle according to an exemplary embodiment of the present disclosure;

FIGS. 6 and 7 are schematic structural illustrations of a closed and open air curtain in a framework provided by an exemplary embodiment of the present disclosure;

FIG. 8 is a schematic view of an exhaust system airflow path of a vehicle in an exemplary embodiment of the present disclosure;

FIG. 9 is a schematic view of an exhaust system noise transfer path of a vehicle in an exemplary embodiment of the present disclosure.

Description of the reference numerals

The automobile body structure comprises a framework, 11 air outlets, 12 air curtains, 13 annular clamping protrusions, 14 buckles, 2 outer shields, 20 extending plates, 21 straight-through holes, 211 first through holes, 212 second through holes, 3 spoilers, 31 first multi-section bending structures, 311 first air vents, 312 second air vents, 313 buckle structures, 32 second multi-section bending structures, 4 grids, 41 first grids, 42 second grids, 5 sealing parts, 6 inner trim plate grids and 7 automobile bodies.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, where not otherwise stated, the use of directional words such as "upper" and "lower" generally refers to those defined in the context of normal installation of the exhaust system provided by the present disclosure, and reference may be made specifically to the orientation of the drawing shown in fig. 2. "inner" and "outer" refer to the inner and outer of the respective component profiles, and furthermore, the terms "first", "second", and the like are used in this disclosure to distinguish one element from another, without order or importance. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated.

As shown in fig. 1, in the existing exhaust system for a vehicle, when the air flow in the vehicle is exhausted outside, as shown in fig. 7, an air curtain 12 is automatically opened, and the air flow in the vehicle enters from an exhaust port 11 and is exhausted to the external environment, so as to balance the pressure inside and outside the vehicle and improve the comfort level of the vehicle; when the vehicle runs smoothly and the pressure inside and outside the vehicle is balanced, as shown in fig. 6, the air curtain 12 is closed to prevent external noise from entering the passenger compartment through the air outlet 11, thereby providing a quiet and comfortable environment inside the vehicle. However, when the air curtain 12 is opened or closed due to vibration, noise enters the vehicle through the air outlet 11, which affects the riding experience of the user.

In view of the above problems, as shown in fig. 2 to 5, the present disclosure provides an exhaust system of a vehicle, the exhaust system including a frame 1, an outer shroud 2, and a fluid-disturbing body 3, wherein the frame 1 is configured to be mounted on a vehicle body, the frame 1 has an exhaust port 11 communicating the inside and the outside of the vehicle, and an air curtain 12 mounted on the exhaust port 11 and openable and closable; the outer shield 2 is connected with the framework 1, and an accommodating cavity is formed between the outer shield 2 and the framework 1; the turbulent flow body 3 is arranged in the containing cavity, and the turbulent flow body 3 is provided with a multi-section bending structure so as to change the circulation path of airflow and noise in the containing cavity.

Through the technical scheme, when the airflow in the vehicle is discharged outwards, the spoiler 3 can buffer the air entering the accommodating cavity, so that the problems that the opening angle and the vibration frequency of the air curtain 12 are large due to overlarge pressure difference are avoided, and the noise is reduced; when the gas curtain 12 is opened, the spoiler 3 and the outer shield 2 can play the separation effect to the partial noise in the external environment, get into the noise that holds the intracavity simultaneously and absorb the reflection many times under the effect of spoiler 3, effectively reduce the noise that transmits to the passenger cabin, promote to ride and drive experience and whole car quality.

The fluid 3 may be constructed in any suitable configuration. In the present disclosure, as shown in fig. 4 and 5, the outer shroud 2 has an extension plate 20 extending beyond the frame 1, and the fluid-disturbing body 3 includes a first multi-stage bent structure 31 located in the accommodation chamber and a second multi-stage bent structure 32 extending out of the accommodation chamber, and the exhaust system of the vehicle provided by the present disclosure has:

in the first working process, as shown in fig. 8, the in-vehicle airflow Q enters the accommodating cavity from the air outlet 11 through the interior trim panel grille 6, and part of the airflow sequentially flows out through the first multi-section bending structure 31 and the through hole 21 of the outer shield 2, specifically, a flow path located above;

and/or, part of the airflow sequentially flows out through the second multi-section bending structure 32 and the lateral opening between the extension plate 20 and the spoiler 3, specifically, if the airflow path is located below, the second multi-section bending structure 32 can change the flow direction of the airflow and change the flow direction from downward to lateral direction to discharge the airflow, and meanwhile, the multi-section bending structure can play a role of spoiler for the entering airflow, buffer the direct impact pressure of the airflow, reduce the impact on the air curtain 12 and the spoiler 3, and avoid overlarge opening angle and vibration frequency of the air curtain 12 due to overlarge pressure difference while finishing the pressure relief function, so as to generate noise;

in the second working process, as shown in fig. 9, as shown in a flow path C and a flow path D in the figure, the outer shield 2 and the spoiler 3 can directly block part of the noise V outside, so as to effectively reduce the noise transmission, and part of the external noise V enters from the through hole 21 of the outer shield 2 and sequentially enters the vehicle through the first multi-section bent structure 31 and the air outlet 10, as shown in a transmission path a in the figure, diffuse reflection occurs at the first multi-section bent structure 31, so as to bypass the transmission path, so that the noise is absorbed for multiple times, and the noise reduction effect is achieved;

and/or, part of the external noise V enters from the lateral openings of the extension plate 20 and the spoiler 3, and enters the vehicle through the second multi-section bent structure 32 and the air outlet 10 in sequence, as shown in a transmission path B in the figure, diffuse reflection occurs at the second multi-section bent structure 32, the transmission path is roundabout, the noise is absorbed for many times, and the noise reduction effect is achieved.

The first multi-segment bending structure 31 and the second multi-segment bending structure 32 can play a role of turbulence for increasing a transmission path of air flow or noise, and specific structures of the first multi-segment bending structure and the second multi-segment bending structure are not limited.

In an exemplary embodiment of the present disclosure, as shown in fig. 5, 8 and 9, the first multi-stage bent structure 31 may be configured as a Z-shaped structure that is obliquely arranged, the Z-shaped structure is an irregular Z-shaped structure, and the opening is arranged toward the outer shield 2, a plurality of first vents 311 communicating the through holes 21 and the exhaust vents 10 are formed on a connection wall of the Z-shaped structure, and a plurality of second vents 312 communicating the outside and the receiving chamber, the through holes 21 include first through holes 211 corresponding to the exhaust vents 10 and second through holes 212 located at both sides of the first through holes 211. Specifically, in the first working process, the airflow in the vehicle enters the accommodating cavity from the air outlet 11, is exhausted out of the vehicle through the first vent 311, the first through hole 211 and the second through hole 212, and/or flows downwards through the second vent 312 and flows out of the lateral openings of the outer shield 2 and the spoiler 3; in the second working process, external noise enters the vehicle through the first through hole 211 and the second through hole 212, enters the vehicle through the first vent 311 and the air outlet 11, and/or is transmitted upwards, and enters the vehicle through the second vent 312 and the air outlet 11. In other embodiments, the first multi-stage bending structure 31 and the second multi-stage bending structure 32 may be configured as an L-shaped structure, a zigzag structure, or the like, and any structure that can serve to bypass the transmission path falls within the scope of the present disclosure.

In an exemplary embodiment of the present disclosure, the second multi-stage bending structure 32 may be configured as a multi-stage structure, and may change a transmission path of air flow and noise to play a role in buffering and absorbing noise. As shown in fig. 5, 8 and 9, the upper end of the multi-step structure is fixed to the inner wall of the outer shield 2 through the fastening structure 313, and the free end of the multi-step structure extends in the same direction as the extension plate 20 and is fixedly connected with the extension plate 20, so that a lateral opening can be formed for pressure relief, and meanwhile, the lower end of the multi-step structure is closed, so that the whole fixing of the disturbing fluid 3 is realized, and abnormal sound is prevented.

The skeleton 1 and the outer shield 2 may be assembled in various ways. In the present disclosure, one of the frame 1 and the outer cover 2 is formed with a clip 14, and the other is formed with a clip hole 22 that is clip-fitted to the clip 14. For example, as shown in fig. 3 and 4, a plurality of clips 14 are formed at intervals on the outer peripheral wall of the frame 1, and a plurality of clip holes 22 matched with the clips 14 are formed on the outer shield 2.

In the present disclosure, a plurality of grilles 4 arranged at intervals are further disposed on the air outlet 11 of the framework 1, the grilles 4 extend in the up-down direction, and the grilles 4 divide the entering air flow into a plurality of strands of smaller air flows to play a role of buffering.

Specifically, as shown in fig. 3, the grille 4 is disposed obliquely in the up-down direction, the grille 4 includes a first grille 41 for guiding the airflow to flow toward the through opening 21 of the outer shroud 2 and a second grille 42 for guiding the airflow to flow toward the extension plate 20 of the outer shroud 2, and the air curtains 12 are two corresponding to the first grille 41 and the second grille 42 and are openably and closably installed on the outer sides of the grills.

According to a second aspect of the present disclosure, there is also provided a vehicle comprising an exhaust system of the vehicle as described above, the vehicle having all the benefits of the exhaust system as described above, which will not be redundantly described here.

An assembly hole is formed in a vehicle body 7 of the vehicle, the framework 1 is provided with an annular clamping protrusion 13 clamped with the assembly hole, a sealing element 5 is arranged between the annular clamping protrusion 13 and the vehicle body 7, and the sealing element 5 can be a sealing rubber ring and can ensure the tightness of assembly between the exhaust system and the vehicle body 7. The utility model provides an exhaust system can be wholly installed and enclose behind the automobile body, can be satisfying under the condition of normal pressure release, reduce the noise that the air current produced, and external noise reduces noise frequency and volume of spreading into with circuitous form's transmission process simultaneously, effectively promotes passenger cabin personnel's the experience of driving and taking advantage of, avoids appearing uncomfortable feeling, promotes the quality of whole car.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims

1. An exhaust system for a vehicle, comprising:

the automobile air conditioner comprises a framework (1) and a control system, wherein the framework (1) is arranged on an automobile body and is provided with an air outlet (11) communicated with the inside and the outside of the automobile and an air curtain (12) which is arranged on the air outlet (11) and can be opened and closed;

the outer protective cover (2) is connected with the framework (1), and an accommodating cavity is formed between the outer protective cover (2) and the framework (1); and

and the fluid disturbing body (3) is arranged in the accommodating cavity, and the fluid disturbing body (3) has a multi-section bending structure so as to change the circulation path of airflow and noise in the accommodating cavity.

2. The exhaust system of a vehicle according to claim 1, wherein the outer shroud (2) has an extension plate (20) beyond the frame (1), the turbulent flow body (3) includes a first multi-segment bent structure (31) located in the accommodation chamber and a second multi-segment bent structure (32) protruding out of the accommodation chamber, and the exhaust system of a vehicle has:

in the first working process, the air flow in the vehicle enters from the air outlet (11), and part of the air flow sequentially flows out through the first multi-section bending structure (31) and the straight-through hole (21) of the outer shield (2); and/or part of the airflow flows out through a lateral opening between the second multi-section bending structure (32), the extension plate (20) and the fluid disturbing body (3) in sequence; and

and in the second working process, partial external noise enters from the through hole (21) of the outer shield (2) and sequentially passes through the first multi-section bending structure (31) and the air outlet (11) to enter the vehicle, and/or partial external noise enters from the extension plate (20) and the side opening of the disturbing fluid (3) and sequentially passes through the second multi-section bending structure (32) and the air outlet (11) to enter the vehicle.

3. The vehicular exhaust system according to claim 2, wherein the first multi-stage bent structure (31) is configured as a Z-shaped structure disposed obliquely with an opening thereof disposed toward the outer shroud (2), and a plurality of first ventilation openings (311) communicating the through hole (21) and the exhaust outlet (11) and a plurality of second ventilation openings (312) communicating the outside and the accommodation chamber are formed in a connecting wall of the Z-shaped structure.

4. The vehicle exhaust system according to claim 2, wherein the second multi-segment bent structure (32) is configured as a multi-step structure, and a free end of the multi-step structure extends in the same direction as the extension plate (20) and is fixedly connected to the extension plate (20).

5. The vehicular exhaust system according to claim 2, wherein the through-holes (21) include a first through-hole (211) corresponding to the exhaust port (11) and second through-holes (212) located on both sides of the first through-hole (211).

6. The exhaust system of a vehicle according to claim 1, wherein one of the frame (1) and the outer shroud (2) is formed with a clip (14), and the other is formed with a clip hole (22) which is snap-fitted with the clip (14).

7. The exhaust system of a vehicle according to any one of claims 1 to 6, wherein the exhaust outlet (11) of the frame (1) is further provided with a plurality of grilles (4) arranged at intervals, and the plurality of grilles (4) extend in the up-down direction.

8. The exhaust system of a vehicle according to claim 7, wherein the grille (4) is provided obliquely in an up-down direction, and the grille (4) includes a first grille (41) for guiding the air flow to circulate toward the through hole (21) of the outer shroud (2) and a second grille (42) for guiding the air flow to circulate toward the extension plate (20) of the outer shroud (2).

9. A vehicle, characterized in that it comprises an exhaust system of a vehicle according to any one of claims 1-8.

10. The vehicle of claim 9, characterized in that a mounting hole is formed on the vehicle body (7), the framework (1) is provided with an annular clamping projection (13) clamped with the mounting hole, and a sealing member (5) is arranged between the annular clamping projection (13) and the vehicle body (7).