CN220447980U - Dash panel assembly and vehicle - Google Patents

Abstract

The application provides a dash panel assembly and vehicle, the dash panel assembly that this application provided includes dash panel and two exhaust curtains, and the dash panel separates the automobile body of vehicle into cabin and driver's cabin before; the front coaming is provided with an exhaust channel which is communicated with the front cabin and the cab, the exhaust channel is provided with an air inlet and an air outlet, the air inlet is arranged towards the cab, the air outlet is arranged towards the front cabin, and the projection of the air inlet in the thickness direction of the front coaming and the projection of the air outlet in the direction are not overlapped; one of the two exhaust curtains is arranged on the air inlet, and the other of the two exhaust curtains is arranged on the air outlet. The dash board assembly can reduce noise entering a cab.

Description

Dash panel assembly and vehicle

Technical Field

The application relates to the technical field of vehicles, in particular to a front coaming assembly and a vehicle using the same.

Background

In a vehicle, when the air pressure in the cab increases, the air flow in the cab blows the blades on the exhaust curtain, so that the air flow in the cab flows into the front cabin through the exhaust curtain to adjust the air pressure in the cab.

In general, the front cabin and the cab are separated by a dash panel, a through hole is formed in the dash panel, an exhaust curtain is installed in the through hole, and a motor, an air-conditioning compressor and the like are arranged in the front cabin.

Therefore, in the running process of the vehicle, noise generated by the front cabin is easy to enter the cab through the exhaust curtain, and the driving experience of personnel in the cab is affected.

Disclosure of Invention

The utility model provides a dash board assembly and vehicle can reduce the noise that the cabin propagates to the driver's cabin before, promotes driver's in the driver's cabin and takes advantage of experience. The specific technical scheme is as follows:

in a first aspect, the present application provides a dash panel assembly comprising a dash panel and two exhaust curtains, the dash panel dividing a body of a vehicle into a front cabin and a cab; the front coaming is provided with an exhaust channel which is communicated with the front cabin and the cab, the exhaust channel is provided with an air inlet and an air outlet, the air inlet is arranged towards the cab, the air outlet is arranged towards the front cabin, and the projection of the air inlet in the thickness direction of the front coaming and the projection of the air outlet in the direction are not overlapped; one of the two exhaust curtains is arranged on the air inlet, and the other of the two exhaust curtains is arranged on the air outlet.

As an alternative embodiment, the exhaust channel comprises an air inlet channel, a transition channel and an air outlet channel which are sequentially communicated, the air inlet is formed at one end of the air inlet channel far away from the transition channel, and the air outlet is formed at one end of the air outlet channel far away from the transition channel; and included angles are formed between the air inlet channel and the transition channel and between the air outlet channel and the transition channel. Therefore, when the noise propagates in the exhaust channel, as an included angle is formed between the air outlet channel and the transition channel, the propagation direction of the noise can be changed in the process of propagating from the air outlet channel to the transition channel, and when the propagation direction of the noise is changed, a part of the noise can be lost; because the air inlet channel and the transition channel are also provided with an included angle, when noise is transmitted into the air inlet channel from the transition channel, the transmission direction of the noise is changed, so that a part of noise is lost. That is, when noise propagates in the exhaust passage, the direction of the propagation path thereof is changed twice, so that the noise is lost twice, and the noise entering the cab is made small.

As an alternative embodiment, the inlet channel and the outlet channel are arranged in parallel, and the transition channel is perpendicular to the inlet channel. Thus, the exhaust passage is conveniently opened, and the dash panel is conveniently machined.

As an alternative embodiment, the extending direction of the intake passage coincides with the thickness direction of the dash panel.

As an alternative embodiment, the dash panel includes a sound absorbing layer and two sound insulating layers, the two sound insulating layers being spaced apart in a thickness direction of the dash panel, the sound absorbing layer being sandwiched between the two sound insulating layers; the exhaust passage penetrates the sound absorbing layer and the two sound insulating layers. Like this, through setting up the dash board that both sides are puigging and middle sound absorbing layer, then make noise when passing through exhaust passage in, more part is separated or absorbed, then make the noise that gets into in the driver's cabin less.

As an alternative embodiment, each sound insulation layer has a thickness less than the thickness of the sound absorption layer. In this way, more noise is absorbed by the dash panel and less noise is transmitted into the cab.

As an alternative embodiment, the sound absorbing layer is filled with foam, and the sound insulating layer is a carbon fiber board. Therefore, the sound absorption layer has a good sound absorption effect, and the sound insulation layer has a good sound insulation effect.

As an alternative embodiment, the dash panel assembly provided herein further comprises two acoustic baffle members attached to the dash panel, the two acoustic baffle members comprising a first acoustic baffle member and a second acoustic baffle member; the first sound insulation component is covered on the air inlet, and the bottom end of the first sound insulation component is provided with a first opening; the second sound insulation component covers the air outlet, and the top end of the second sound insulation component is provided with a second opening. Thus, by providing the first soundproof member having the first opening and the second soundproof member having the second opening, not only the high-pressure air flow can normally flow, but also the propagation of noise can be stopped at the air outlet and the air inlet, so that the noise propagated into the cab can be reduced.

As an alternative embodiment, the sound insulation assembly includes a sound absorbing structure and a sound shield coupled together; the sound-proof housing is wrapped on the outer side of the sound-absorbing structure and connected with the front surrounding plate.

As an alternative embodiment, the sound absorbing structure is a foam structure. Therefore, the sound absorbing structure has a good sound absorbing effect.

As an alternative embodiment, the thickness of the sound absorbing structure is greater than the thickness of the sound shield. Thus, more noise can be absorbed by the sound absorbing structure when the noise propagates to the positions of the air outlet and the air inlet, so that the noise propagating to the cab is reduced.

In a second aspect, the present application provides a vehicle comprising a body and a dash panel assembly as described above, the dash panel being attached to the body.

In the dash panel assembly and the vehicle, the dash panel assembly comprises a dash panel and two exhaust curtains, and the dash panel divides a vehicle body of the vehicle into a front engine room and a cab; the front coaming is provided with an exhaust channel which is communicated with the front cabin and the cab, the exhaust channel is provided with an air inlet and an air outlet, the air inlet is arranged towards the cab, the air outlet is arranged towards the front cabin, and the projection of the air inlet in the thickness direction of the front coaming and the projection of the air outlet in the direction are not overlapped; one of the two exhaust curtains is arranged on the air inlet, and the other of the two exhaust curtains is arranged on the air outlet. Like this, when the motor etc. in the front cabin produced the noise, the noise then can pass through behind the exhaust curtain on the gas outlet, exhaust passage and the air inlet and transmit to the driver's cabin in proper order, and because the projection of air inlet on dash board thickness direction and the projection of gas outlet on this direction are non-overlapping each other, consequently, compare with the scheme that noise among the correlation technique directly propagates to the driver's cabin through the exhaust curtain, in this application embodiment, the propagation path of noise is longer, then make the noise more of loss in the way of propagating, thereby can reduce the noise of propagating to the driver's cabin.

Drawings

Fig. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present application;

FIG. 2 is a schematic structural view of a dash panel assembly according to an embodiment of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a flow diagram of air flow and noise in a dash panel assembly provided in an embodiment of the present application;

FIG. 5 is a cross-sectional view of a dash panel in a dash panel assembly provided in an embodiment of the present application;

FIG. 6 is a cross-sectional view taken along the direction B-B of FIG. 2;

FIG. 7 is a diagram of the propagation path of noise corresponding to FIG. 6;

FIG. 8 is a cross-sectional view taken along the direction C-C of FIG. 2;

FIG. 9 is a graph of the propagation path of noise corresponding to FIG. 8;

FIG. 10 is a schematic view of another structure corresponding to FIG. 6;

FIG. 11 is a graph of the propagation path of noise corresponding to FIG. 10;

FIG. 12 is a schematic view of another structure corresponding to FIG. 8;

FIG. 13 is a graph of the propagation path of noise corresponding to FIG. 12;

FIG. 14 is a schematic view of another structure corresponding to FIG. 6;

FIG. 15 is a graph of the propagation path of noise corresponding to FIG. 14;

FIG. 16 is a schematic view of another structure corresponding to FIG. 8;

fig. 17 is a propagation path diagram of noise corresponding to fig. 16.

Reference numerals illustrate:

1. a dash panel; 2. an exhaust curtain; 3. a first sound isolation assembly; 4. a second sound isolation assembly; 5. a sound absorbing structure; 6. a soundproof cover; 7. a first bending part; 8. a second bending part; 9. a third bending part;

10. a dash panel assembly; 11. an exhaust passage; 12. a sound absorbing layer; 13. a sound insulation layer; 31. a first opening; 41. a second opening; 20. a vehicle body; 30. a front nacelle; 40. a cab; 50. a fourth bending part;

111. an air inlet; 112. an air outlet; 113. an air intake passage; 114. a transition channel; 115. an air outlet channel; 100. a vehicle.

Detailed Description

The technical solutions in the present application will be clearly and thoroughly described below with reference to the accompanying drawings. Wherein, in the description of the embodiments of the present application, "/" means or is meant unless otherwise indicated, for example, a/B may represent a or B: the text "and/or" is merely an association relation describing the associated object, and indicates that three relations may exist, for example, a and/or B may indicate: the three cases where a exists alone, a and B exist together, and B exists alone, and in addition, in the description of the embodiments of the present application, "plural" means two or more than two.

The terms "first," "second," and the like, are used below for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.

In a vehicle, when the air pressure in the cab is increased, the air flow in the cab can blow the blades on the exhaust curtain, so that the air flow in the cab flows into the front cabin through the exhaust curtain to adjust the air pressure in the cab, and particularly, when a driver closes a vehicle door, the air pressure in the cab can be increased rapidly, and if the air curtain is not arranged, the vehicle door can be in a condition of being unable to close; in addition, when a driver closes the door, the pressure in the vehicle rises rapidly, so that the eardrum of the driver can be stimulated, obvious ear pressing feel appears, and serious discomfort can be caused; when the vehicle is provided with the exhaust curtain, a driver can pass through the exhaust curtain when closing the door, and the high-pressure air in the cab flows to the front cabin, so that the high-pressure air in the vehicle can be discharged at the moment, the door closing in the vehicle is not influenced, and the door closing and ear pressing sense of the driver can not be generated.

In general, the front cabin and the cab are separated by a dash panel, a through hole is formed in the dash panel, an exhaust curtain is installed in the through hole, and a motor, an air-conditioning compressor and the like are arranged in the front cabin. Therefore, in the running process of the vehicle, the motor, the air conditioner compressor and the tires of the front cabin generate noise, and the noise generated by the front cabin is easy to enter the cab through the exhaust curtain, so that the driving experience of personnel in the cab is influenced.

The embodiment provides a dash panel assembly and a vehicle, wherein the dash panel assembly comprises a dash panel and two exhaust curtains, and the dash panel divides a vehicle body of the vehicle into a front cabin and a cab; the front coaming is provided with an exhaust channel which is communicated with the front cabin and the cab, the exhaust channel is provided with an air inlet and an air outlet, the air inlet is arranged towards the cab, the air outlet is arranged towards the front cabin, and the projection of the air inlet in the thickness direction of the front coaming and the projection of the air outlet in the direction are not overlapped; one of the two exhaust curtains is arranged on the air inlet, and the other of the two exhaust curtains is arranged on the air outlet. Like this, when the motor etc. in the front cabin produced the noise, the noise then can pass through behind the exhaust curtain on the gas outlet, exhaust passage and the air inlet and transmit to the driver's cabin in proper order, and because the projection of air inlet on dash board thickness direction and the projection of gas outlet on this direction are non-overlapping each other, consequently, compare with the scheme that noise among the correlation technique directly propagates to the driver's cabin through the exhaust curtain, in this application embodiment, the propagation path of noise is longer, then make the noise more of loss in the way of propagating, thereby can reduce the noise of propagating to the driver's cabin.

It should be noted that the vehicle provided in the embodiments of the present application includes, but is not limited to, a sports car. Here, the type of the vehicle provided in the embodiment of the present application is not limited.

The embodiments of the present application will be described in detail below with reference to the accompanying drawings and detailed description.

Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a vehicle according to an embodiment of the present application; fig. 2 is a schematic structural view of a dash panel assembly according to an embodiment of the present application, fig. 3 is a sectional view of fig. 2 taken along A-A direction, and fig. 4 is a flow chart of air flow and noise in the dash panel assembly according to an embodiment of the present application. The solid arrow direction in fig. 4 is the flow direction of the air flow, and the broken arrow direction in fig. 4 is the propagation direction of the noise. As shown in fig. 1 to 4, the present embodiment provides a dash panel assembly 10, which is applied to a vehicle 100, the dash panel assembly 10 including a dash panel 1 and two exhaust curtains 2, the dash panel 1 dividing a body 20 of the vehicle 100 into a front cabin 30 and a cab 40; the dash panel 1 is provided with an exhaust passage 11 for communicating the front cabin 30 and the cab 40, the exhaust passage 11 is provided with an air inlet 111 and an air outlet 112, the air inlet 111 is arranged towards the cab 40, the air outlet 112 is arranged towards the front cabin 30, and the projection of the air inlet 111 in the thickness direction of the dash panel 1 and the projection of the air outlet 112 in the direction are not overlapped; one of the two exhaust curtains 2 is disposed on the air inlet 111, and the other of the two exhaust curtains 2 is disposed on the air outlet 112. Thus, when the air pressure in the cab 40 increases, the air flow in the cab 40 blows the blades on the exhaust curtain 2, so that the air flow in the cab 40 enters the exhaust passage 11 through the exhaust curtain 2 arranged on the air inlet 111, and then flows into the front cabin 30 through the exhaust curtain 2 arranged on the air outlet 112; the noise propagation direction should be opposite to the airflow direction, so when the motor in the nacelle 30 generates noise, the noise will sequentially pass through the exhaust curtain 2 on the air outlet 112, the exhaust channel 11 and the exhaust curtain 2 on the air inlet 111 and then be transferred into the cab 40, and since the projection of the air inlet 111 in the thickness direction of the dash panel and the projection of the air outlet 112 in this direction do not overlap, compared with the scheme that the noise in the related art propagates into the cab 40 directly through the exhaust curtain, in the embodiment of the present application, the propagation path of the noise is longer, so that the noise will be more lost in the propagation process, and the noise propagating into the cab 40 can be reduced.

In order to further increase the noise loss in the exhaust passage 11, in some embodiments, the exhaust passage 11 includes an intake passage 113, a transition passage 114, and an exhaust passage 115 that are sequentially communicated, the intake port 111 is formed at an end of the intake passage 113 remote from the transition passage 114, and the exhaust port 112 is formed at an end of the exhaust passage 115 remote from the transition passage 114; included angles are formed between the inlet channel 113 and the transition channel 114 and between the outlet channel 115 and the transition channel 114. Thus, when the noise propagates in the exhaust channel 11, because the air outlet channel 115 and the transition channel 114 have an included angle, the propagation direction of the noise will change when the noise propagates from the air outlet channel 115 to the transition channel 114, and when the propagation direction of the noise changes, a part of the noise will be lost; since the air intake passage 113 and the transition passage 114 also have an angle therebetween, when noise propagates from the transition passage 114 into the air intake passage 113, the propagation direction of the noise also changes, so that a further part of the noise is lost. That is, when noise propagates in the exhaust passage 11, the direction of the propagation path thereof is changed twice, so that the noise is lost twice, and the noise entering the cab 40 is made small.

It should be noted that, when the air inlet 111 and the air outlet 112 are arranged in a staggered manner, the air inlet 111 and the air outlet 112 may be connected together through an inclined air outlet channel 11, and when the air outlet channel 11 is arranged in an inclined manner, the direction of the propagation path of the noise in the air outlet channel 11 will not be changed; compared with the above-mentioned way of having an included angle between the air inlet channel 113 and the transition channel 114 and an included angle between the transition channel 114 and the air outlet channel 115, the noise has less loss in the inclined air outlet channel 11, and when the air inlet channel 113 and the transition channel 114 have an included angle and the transition channel 114 and the air outlet channel 115 have an included angle, the propagation path of the noise in the air outlet channel 11 is longer, so that the loss of the noise in the air outlet channel 11 can be further reduced, and the noise entering the cab 40 is smaller.

In order to facilitate the opening of the exhaust passage 11 in this embodiment, in some alternative embodiments, the inlet passage 113 and the outlet passage 115 are disposed in parallel, and the transition passage 114 is perpendicular to the inlet passage 113. In this way, the exhaust passage 11 is easily opened, and the dash panel 1 is easily processed.

Further, in some alternative embodiments, the extending direction of the air intake passage 113 coincides with the thickness direction of the dash panel 1, that is, the extending direction of the transition passage 114 is perpendicular to the thickness direction of the dash panel 1, and the air outlet passage 115 coincides with the thickness direction of the dash panel 1.

Wherein the thickness direction of the dash panel 1 coincides with the z-z axis direction in fig. 3 and 4.

Since the exhaust passage 11 is opened in the dash panel 1, the structure of the dash panel 1 can be improved adaptively, so that noise is more lost in the exhaust passage 11. Thus, referring to fig. 5, fig. 5 is a cross-sectional view of a dash panel in a dash panel assembly according to an embodiment of the present application. In some embodiments, the dash panel 1 includes the sound-absorbing layer 12 and two sound-insulating layers 13, the two sound-insulating layers 13 being spaced apart in the thickness direction of the dash panel 1, the sound-absorbing layer 12 being sandwiched between the two sound-insulating layers 13; the exhaust passage 11 penetrates the sound absorbing layer 12 and the two sound insulating layers 13. In this way, by providing the dash panel 1 having the sound insulation layer 13 on both sides and the sound absorption layer 12 in the middle, when noise passes through the exhaust duct 11, a large portion is blocked or absorbed, and the noise entering the cab 40 is small.

In order to allow more noise to be absorbed in the exhaust passage 11, in some embodiments, each of the sound insulation layers 13 has a thickness less than that of the sound absorption layer 12. In this way, more noise is absorbed by the dash panel 1, and less noise is transmitted into the cab 40.

In order to make the sound-absorbing layer 12 have a better sound-absorbing effect, the sound-insulating layer 13 has a better sound-insulating effect, and in some embodiments, the sound-absorbing layer 12 may be filled with foam, and in particular, the sound-absorbing layer 12 may be a foam board or a foam filled in a certain substrate; the sound insulation layer 13 may be a carbon fiber plate. Here, the materials of the sound absorbing layer 12 and the sound insulating layer 13 are not particularly limited.

Since noise enters from the air outlet 112 and propagates out from the air inlet 111, in some embodiments, corresponding sound insulation structures may be provided at the air outlet 112 and the air inlet 111 to reduce noise propagating into the cab 40.

Referring to fig. 6 to 9, fig. 6 is a cross-sectional view of fig. 2 along the direction B-B, fig. 7 is a propagation path diagram of noise corresponding to fig. 6, fig. 8 is a cross-sectional view of fig. 2 along the direction C-C, and fig. 9 is a propagation path diagram of noise corresponding to fig. 8. The arrow direction in fig. 7 and 9 is the propagation direction of noise. As an alternative embodiment, the dash panel assembly 10 provided in this embodiment may further include two soundproof components connected to the dash panel 1, the two soundproof components including the first soundproof component 3 and the second soundproof component 4; the first sound insulation component 3 is covered on the air inlet 111, and the bottom end of the first sound insulation component 3 is provided with a first opening 31; the second soundproof assembly 4 is covered on the air outlet 112, and the top end of the second soundproof assembly 4 has the second opening 41. In this way, by providing the first soundproof assembly 3 having the first opening 31 and the second soundproof assembly 4 having the second opening 41, not only the high-pressure air flow can be normally flowed, but also the propagation of noise can be stopped at the air outlet 112 and the air inlet 111 to reduce the noise propagated into the cab 40.

As shown in fig. 6 to 9, the opening direction of the first opening 31 and the opening direction of the second opening 41 may be parallel to the panel surface direction of the dash panel 1, and the opening direction of the first opening 31 may be perpendicular to the direction of the air inlet 111, and the opening direction of the second opening 41 may be perpendicular to the direction of the air outlet 112.

In other embodiments, however, the opening orientations of the first opening 31 and the second opening 41 may each form an angle with the panel surface direction of the dash panel 1.

Specifically, as shown in fig. 10 to 13, fig. 10 is another schematic structural diagram corresponding to fig. 6, fig. 11 is a propagation path diagram of noise corresponding to fig. 10, fig. 12 is another schematic structural diagram corresponding to fig. 8, and fig. 13 is a propagation path diagram of noise corresponding to fig. 12. Wherein, the bottom end of the first soundproof assembly 3 may form a first bending portion 7 extending toward the dash panel 1, the first opening 31 is formed between the first bending portion 7 and the dash panel 1, the top end of the second soundproof assembly 4 may form a second bending portion 8 extending toward the dash panel 1, and the second opening 41 is formed between the second bending portion 8 and the dash panel 1. Thus, when the noise propagates from the second opening 41 to the air outlet 112, the propagation path direction is changed once more, so that the loss of the noise in the propagation is large; when the noise propagates from the air inlet 111 to the first opening 31, the direction of the propagation path is also changed once more, so that the loss of the noise during propagation is large.

Further, as shown in fig. 14 to 17, fig. 14 is a schematic diagram of another structure corresponding to fig. 6, fig. 15 is a schematic diagram of a propagation path of noise corresponding to fig. 14, fig. 16 is a schematic diagram of another structure corresponding to fig. 8, and fig. 17 is a schematic diagram of a propagation path of noise corresponding to fig. 16. Wherein the bottom end of the first soundproof member 3 may form a third bending portion 9 extending toward a direction away from the dash panel 1, the first opening 31 is formed between the third bending portion 9 and the dash panel 1, the top end of the second soundproof member 4 may form a fourth bending portion 50 extending toward a direction away from the dash panel 1, and the second opening 41 is formed between the fourth bending portion 50 and the dash panel 1. Thus, when the noise propagates from the second opening 41 to the air outlet 112, the propagation path direction is changed once more, so that the loss of the noise in the propagation is large; when the noise propagates from the air inlet 111 to the first opening 31, the direction of the propagation path is also changed once more, so that the loss of the noise during propagation is large.

Specifically, the first sound insulation component 3 and the second sound insulation component 4 may include a sound absorbing structure 5 and a sound insulation cover 6 that are connected together; the soundproof cover 6 is wrapped around the outside of the sound absorbing structure 5 and is connected to the dash panel 1. Wherein, the sound-proof housing 6 can adopt the plastic material, and can be connected through the buckle block between sound-proof housing 6 and the dash board 1, inhale sound structure 5 and bond in the sound-proof housing 6. Here, the material of the soundproof cover 6, the connection method between the soundproof cover 6 and the dash panel 1, and the connection method between the sound absorbing structure 5 and the soundproof cover 6 are not particularly limited.

In order to provide the sound absorbing structure 5 with a better sound absorbing effect, in some alternative embodiments, the sound absorbing structure 5 may be a foam structure. In this way, the sound absorbing structure 5 has a good sound absorbing effect.

In some other embodiments, the sound absorbing structure 5 may be made of other materials, and the material of the sound absorbing structure 5 is not particularly limited.

In some embodiments, in order to enhance the sound insulation effect of the first and second sound insulation members 3 and 4, the thickness of the sound absorbing structure 5 may be greater than that of the soundproof cover 6. In this way, more noise can be absorbed by the sound absorbing structure 5 when the noise propagates to the positions of the air outlet 112 and the air inlet 111, so as to reduce the noise propagating into the cab 40.

Referring to fig. 7 and 9, when noise is generated in the front nacelle 30, the noise propagates to the air outlet 112 through the second opening 41 along the second soundproof assembly 4, propagates to the air outlet channel 115 through the exhaust curtain 2 disposed at the air outlet 112, propagates to the transition channel 114 and the air inlet channel 113, and propagates to the air inlet 111 through the exhaust curtain 2 disposed at the air inlet 111, and propagates to the cab 40 through the first opening 31 along the first soundproof assembly 3.

The dash panel assembly provided by the embodiment comprises a dash panel and two exhaust curtains, wherein the dash panel divides a vehicle body of a vehicle into a front cabin and a cab; the front coaming is provided with an exhaust channel which is communicated with the front cabin and the cab, the exhaust channel is provided with an air inlet and an air outlet, the air inlet is arranged towards the cab, the air outlet is arranged towards the front cabin, and the projection of the air inlet in the thickness direction of the front coaming and the projection of the air outlet in the direction are not overlapped; one of the two exhaust curtains is arranged on the air inlet, and the other of the two exhaust curtains is arranged on the air outlet. Thus, when noise is generated by the motor in the front cabin, the noise is sequentially transmitted into the cab through the exhaust curtain on the air outlet, the exhaust channel and the exhaust curtain on the air inlet, and the projection of the air inlet in the thickness direction of the dash panel and the projection of the air outlet in the direction are not overlapped, so that compared with the scheme that the noise in the related art is directly transmitted into the cab through the exhaust curtain, in the embodiment, the noise transmission path is longer, the noise is more lost in the transmission process, and the noise transmitted into the cab can be reduced.

As shown in fig. 1, the present embodiment also provides a vehicle 100 including a vehicle body 20 and the dash panel assembly 10 of the above embodiment, the dash panel 1 being attached to the vehicle body 20. The structure of the dash panel assembly 10 has been described in detail in the above embodiments, and the description of the dash panel assembly 10 is omitted here.

It should be noted that, the vehicle provided in this embodiment should further include other modules or components that enable the vehicle to operate normally, and the other modules or components are not described herein.

The vehicle provided by the embodiment comprises a vehicle body and a front panel assembly, wherein the front panel assembly comprises a front panel and two exhaust curtains, and the front panel divides the vehicle body into a front engine room and a cab; the front coaming is provided with an exhaust channel which is communicated with the front cabin and the cab, the exhaust channel is provided with an air inlet and an air outlet, the air inlet is arranged towards the cab, the air outlet is arranged towards the front cabin, and the projection of the air inlet in the thickness direction of the front coaming and the projection of the air outlet in the direction are not overlapped; one of the two exhaust curtains is arranged on the air inlet, and the other of the two exhaust curtains is arranged on the air outlet. Thus, when noise is generated by the motor in the front cabin, the noise is sequentially transmitted into the cab through the exhaust curtain on the air outlet, the exhaust channel and the exhaust curtain on the air inlet, and the projection of the air inlet in the thickness direction of the dash panel and the projection of the air outlet in the direction are not overlapped, so that compared with the scheme that the noise in the related art is directly transmitted into the cab through the exhaust curtain, in the embodiment, the noise transmission path is longer, the noise is more lost in the transmission process, and the noise transmitted into the cab can be reduced.

The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A dash panel assembly for use in a vehicle, the dash panel assembly comprising a dash panel and two exhaust curtains, the dash panel dividing a body of the vehicle into a front cabin and a cab;

the front coaming is provided with an exhaust channel which is communicated with the front cabin and the cab, the exhaust channel is provided with an air inlet and an air outlet, the air inlet is arranged towards the cab, the air outlet is arranged towards the front cabin, and the projection of the air inlet in the thickness direction of the front coaming and the projection of the air outlet in the direction are not overlapped;

one of the two exhaust curtains is arranged on the air inlet, and the other of the two exhaust curtains is arranged on the air outlet.

2. The dash panel assembly of claim 1, wherein the exhaust channel comprises an air inlet channel, a transition channel and an air outlet channel that are sequentially communicated, the air inlet being formed at an end of the air inlet channel that is remote from the transition channel, the air outlet being formed at an end of the air outlet channel that is remote from the transition channel;

and included angles are formed between the air inlet channel and the transition channel and between the air outlet channel and the transition channel.

3. The dash panel assembly of claim 2, wherein the inlet channel and the outlet channel are disposed in parallel and the transition channel is perpendicular to the inlet channel.

4. A dash panel assembly according to claim 3, wherein the extending direction of the air intake passage coincides with the thickness direction of the dash panel.

5. The dash panel assembly according to any one of claims 1 to 4, wherein the dash panel comprises a sound absorbing layer and two sound insulating layers, the two sound insulating layers being spaced apart in a thickness direction of the dash panel, the sound absorbing layer being sandwiched between the two sound insulating layers;

the exhaust passage penetrates the sound absorbing layer and the two sound insulating layers.

6. The dash panel assembly of claim 5, wherein each of the sound barrier layers has a thickness less than a thickness of the sound absorbing layer; and/or the number of the groups of groups,

foam is filled in the sound absorbing layer, and the sound insulating layer is a carbon fiber plate.

7. The dash panel assembly of any one of claims 1-4, further comprising two acoustic baffle members attached to the dash panel, the two acoustic baffle members comprising a first acoustic baffle member and a second acoustic baffle member;

the first sound insulation component is covered on the air inlet, and the bottom end of the first sound insulation component is provided with a first opening;

the second sound insulation assembly covers the air outlet, and the top end of the second sound insulation assembly is provided with a second opening.

8. The dash panel assembly of claim 7, wherein the sound-absorbing component comprises a sound-absorbing structure and a sound-absorbing cover coupled together;

the sound-proof cover is coated on the outer side of the sound-absorbing structure and connected with the front coaming.

9. The dash panel assembly of claim 8, wherein the sound absorbing structure is a foam structure; and/or the number of the groups of groups,

the thickness of the sound absorbing structure is greater than that of the sound-proof cover.

10. A vehicle comprising a body and the dash panel assembly of any one of claims 1 to 9, the dash panel being connected to the body.