Noise reduction assembly of vehicle and vehicle

Abstract

The embodiment of the utility model provides a noise reduction assembly of a vehicle and the vehicle, and relates to the technical field of vehicles. The noise reduction assembly of the vehicle comprises a body used for connecting a cab of the vehicle and a compartment of the vehicle; the sound absorption layer is arranged at the lower part of the main body; the main body is provided with at least one scattering groove used for scattering noise, and a groove opening of the scattering groove is used for facing a noise source. According to the noise reduction assembly of the vehicle, the at least one scattering groove is formed in the main body, when noise generated by the noise source is transmitted into the scattering groove, the sound absorption layer can absorb the noise, and the groove walls of the scattering groove can enable noise sound waves to be scattered in multiple directions, so that the noise sound waves are prevented from being gathered in the specific direction; therefore, the noise reduction effect of the noise reduction assembly is improved.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and particularly to a noise reduction component for a vehicle and a vehicle. Background Art

[0002] The main sources of noise in the cab are the vehicle's powertrain, suspension, wheels, air conditioning assembly, and braking assembly, etc. These noises enter the cab through the gap between the cab and the carriage, which will not only reduce the vehicle's Noise, Vibration, Harshness (NVH) performance, but also distract the driver's attention, and even cause hearing damage to the driver and passengers. Utility Model Content

[0003] This application provides a noise reduction component for a vehicle and a vehicle, which is used to solve the problem that the noise enters the cab through the gap between the cab and the carriage, which will not only reduce the NVH performance of the vehicle, but also distract the driver's attention, and even cause hearing damage to the driver and passengers.

[0004] In a first aspect, an embodiment of this application provides a noise reduction component for a vehicle, including:

[0005] A main body, which is used to connect the cab of the vehicle and the carriage of the vehicle;

[0006] A sound absorption layer, which is arranged at the lower part of the main body;

[0007] The main body has at least one scattering groove for scattering noise, and the notch of the scattering groove is used to face the noise source.

[0008] In a possible implementation manner, the width of the notch of the scattering groove to the bottom of the scattering groove gradually decreases.

[0009] In a possible implementation manner, the scattering groove is a V-shaped groove, an arc-shaped groove or a trapezoidal groove.

[0010] In a possible implementation manner, the number of scattering grooves is more than two, and each scattering groove is arranged in sequence along the direction from the carriage to the cab.

[0011] In a possible implementation manner, the main body includes:

[0012] A scattering member, which is used to connect with one of the cab and the carriage, and the scattering groove is arranged on the scattering member;

[0013] A docking member, which is used to connect with the other of the cab and the carriage, and a part of the docking member extends into the scattering groove, and there is a gap between the docking member extending into the scattering groove and the groove wall of the scattering groove.

[0014] In a possible implementation, the scattering element includes:

[0015] A first connecting section, one end of which is used to connect to one of the cab and the carriage;

[0016] The scattering section is connected to one end of the first connecting section, and the scattering section is recessed along a direction of the first connecting section away from the noise source to form a scattering groove.

[0017] In a possible implementation, the noise reduction component of the vehicle further includes a first reinforcing rib, wherein the first reinforcing rib connects the first connecting section and the scattering section.

[0018] In a possible implementation manner, the first reinforcement rib, the first connecting section, and the scattering section together form a water drain outlet.

[0019] In a possible implementation, the sound-absorbing layer is a sound-absorbing paint layer or a sound-absorbing cotton layer.

[0020] In a second aspect, an embodiment of the present application provides a vehicle, comprising a cab, a compartment, and a noise reduction component of any vehicle provided in the first aspect connected between the cab and the compartment.

[0021] The embodiments of the present application provide a noise reduction component for a vehicle and a vehicle. The noise reduction component for the vehicle is provided by setting a main body, which is connected between a driving cab of the vehicle and a vehicle compartment, and the driving cab and the vehicle compartment can support the main body; a sound absorbing layer is provided, which is provided at the lower part of the main body, and the main body can support the sound absorbing layer, and the sound absorbing layer is also located between the driving cab and the vehicle compartment. The sound absorbing layer can absorb noise generated by a noise source located below the main body to block the propagation path of the noise, thereby preventing the noise from propagating into the driving cab through the gap between the driving cab and the vehicle compartment; at least one scattering groove is provided on the main body, and when the noise generated by the noise source propagates into the scattering groove, the sound absorbing layer can absorb the noise, and the groove wall of the scattering groove can cause the noise sound waves to scatter in multiple directions to prevent the noise sound waves from gathering in a specific direction, thereby improving the noise reduction effect of the noise reduction component. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the description, are used to explain the principles of the embodiments of the present application.

[0023] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 A schematic diagram of a structure in which a noise reduction component of a vehicle is connected between a vehicle compartment and a cab;

[0025] Figure 3 forFigure 2 Front view;

[0026] Figure 4 is Figure 2 a schematic structural diagram of a noise reduction component of a vehicle in

[0027] Description of reference numerals in the drawings:

[0028] 10 - Noise reduction component; 20 - Cab; 30 - Compartment;

[0029] 100 - Main body; 110 - Scattering member; 111 - First connecting section; 112 - Scattering section; 113 - Scattering groove; 120 - Docking member; 121 - Second connecting section; 122 - Docking section;

[0030] 200 - First reinforcing rib;

[0031] 300 - Drain port;

[0032] 400 - Second reinforcing rib.

[0033] For the convenience of understanding the solution of the embodiments of the present application, the spline curves and arrows used for the reference numerals in the drawings are described herein: For the components indicated by the spline curves without arrows, they are solid components, that is, components with solid structures; for the components indicated by the spline curves with arrows, they are virtual components, that is, components without solid structures.

[0034] Through the above - mentioned drawings, the clear embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the embodiments of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0035] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0036] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. (if any) is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, the elements defined by the statement "comprising..." do not exclude the presence of additional identical elements in the process, method, article or device comprising such element. If there is no conflict, the embodiments of the present application and the various features in the embodiments can be combined with each other, and all are within the protection scope of the present application.

[0037] An embodiment of the present application provides a vehicle, Figure 1 which is a schematic structural diagram of the vehicle provided by the embodiment of the present application.

[0038] Specifically, please refer to Figure 1 , the vehicle includes a cab 20, a carriage 30, and a noise reduction component 10 connected between the cab 20 and the carriage 30.

[0039] The embodiment of the present application does not limit the specific type of vehicle to which the noise reduction component 10 is applied. Exemplarily, the vehicle can be a new energy range-extended light truck, a new energy hybrid light truck, or a traditional energy direct drive light truck. The noise reduction component 10 can also be applied to various types of vehicles such as gasoline range-extended, gasoline hybrid, gasoline direct drive, diesel range-extended, diesel hybrid, diesel direct drive, methanol range-extended, methanol hybrid, methanol direct drive, etc.

[0040] The embodiment of the present application does not limit the specific type of the carriage 30. Exemplarily, the carriage 30 can be a standard cargo box, a flat carriage, a refrigerated carriage, or a special carriage.

[0041] In the embodiment of the present application, there is a gap between the cab 20 and the carriage 30. The noise reduction component 10 is connected between the cab 20 and the carriage 30, and the noise reduction component 10 is located in this gap. The noise reduction component 10 can block the propagation path of the noise generated by the noise source, so as to prevent the noise from passing through the gap between the cab 20 and the carriage 30 and being transmitted into the cab 20 through the sheet metal parts on the cab 20, thereby achieving the effect of noise reduction.

[0042] It can be understood that Figure 1 only some components included in the vehicle are schematically shown, and the actual shape, actual size, actual position and actual structure of these components are not limited by Figure 1 , and the vehicle may also include more or fewer components compared to Figure 1 .

[0043] The embodiment of the present application also provides a noise reduction component for a vehicle. Figure 2 FIG. is a schematic structural view of the noise reduction component 10 of the vehicle connected between the carriage 30 and the cab 20. Figure 3 For Figure 2 is the front view of Figure 4 FIG. is a schematic structural view of the noise reduction component 10 of the vehicle.

[0044] Specifically, please refer to Figure 2 and Figure 3 , the noise reduction component 10 of the vehicle includes: a main body 100, and the main body 100 is used to connect the cab 20 of the vehicle and the carriage 30 of the vehicle; a sound absorption layer (not shown), and the sound absorption layer is arranged at the lower part of the main body 100; at least one scattering groove 113 for scattering noise is formed on the main body 100, and the notch of the scattering groove 113 is used to face the noise source.

[0045] In the embodiment of the present application, the main body 100 is connected between the cab 20 of the vehicle and the carriage 30 of the vehicle, and the cab 20 and the carriage 30 can support the main body 100. The sound absorption layer is arranged at the lower part of the main body 100, and the main body 100 can support the sound absorption layer.

[0046] The sound absorption layer is arranged at the lower part of the main body 100, and the main body 100 is connected between the cab 20 of the vehicle and the carriage 30 of the vehicle. Then, the sound absorption layer is also located between the cab 20 and the carriage 30. Thus, when a noise source below the sound absorption layer generates noise, the sound absorption layer can absorb the noise transmitted to the sound absorption layer to block the propagation path of the noise, so as to prevent the noise from continuing to propagate in the gap between the cab 20 and the carriage 30, and further prevent the noise from being transmitted into the cab 20 through the sheet metal parts on the cab 20 close to this gap.

[0047] Moreover, by providing at least one scattering groove 113 on the main body 100, when the noise generated by the noise source propagates into the scattering groove 113, the sound-absorbing layer can absorb the noise, and the groove wall of the scattering groove 113 can scatter the noise sound waves in multiple directions, so as to prevent the noise sound waves from aggregating in a specific direction, thereby improving the noise reduction effect of the noise reduction component 10. Further, the sound-absorbing layer located in the scattering groove 113 can match the scattering groove 113, so that the sound-absorbing layer and the main body 100 can jointly scatter the noise sound waves.

[0048] It should be noted that the specific type of the noise source is not limited in the embodiments of the present application. As long as the noise generated by the noise source can propagate into the cab 20 through the gap between the cab 20 and the carriage 30, it can be regarded as the noise source in the embodiments of the present application. Exemplarily, the noise source can be at least one of a vehicle's powertrain, a vehicle's suspension, a vehicle's wheels, a vehicle's air conditioning assembly, and a vehicle's braking assembly.

[0049] The following describes the preferred technical solutions of the noise reduction component 10 of the vehicle according to the embodiments of the present application with reference to the accompanying drawings.

[0050] In the embodiments of the present application, please refer to Figure 2 and Figure 3 , the width from the notch to the bottom of the scattering groove 113 gradually decreases.

[0051] The groove wall of the scattering groove 113 has a gradient structure. When the noise propagates into the scattering groove 113, the gradient groove wall can effectively scatter the noise sound waves in multiple directions, preventing the local aggregation of the noise sound waves, thereby improving the noise reduction effect of the noise reduction component 10.

[0052] Exemplarily, the scattering groove 113 is a V-shaped groove, an arc-shaped groove, or a trapezoidal groove. The V-shaped groove, the arc-shaped groove, and the trapezoidal groove all have a conventional gradient structure, which is convenient for manufacturing.

[0053] In some specific embodiments (not illustrated in this embodiment), the number of the scattering grooves 113 is more than two, and the scattering grooves 113 are arranged in sequence along the direction from the carriage 30 towards the cab 20.

[0054] In this embodiment, the regions covered by the scattering grooves 113 between the carriage 30 and the cab 20 are relatively wide, and can scatter more noise, so as to improve the noise reduction effect of the noise reduction component 10. Exemplarily, the scattering grooves 113 jointly form a corrugated structure or a wavy structure, further improving the noise reduction effect of the noise reduction component 10.

[0055] In some scenarios, a vehicle will experience working conditions such as bumps, turns, acceleration, and deceleration during driving. These working conditions will cause the relative position between the cab 20 and the carriage 30 to change continuously. The noise reduction component 10 is connected between the cab 20 and the carriage 30, and its structure will be damaged.

[0056] In view of the above technical problems, in some embodiments, please refer to Figure 3 and Figure 4 , the main body 100 includes: a scattering member 110, the scattering member 110 is used to connect to one of the cab 20 and the carriage 30, and a scattering groove 113 is provided on the scattering member 110; a docking member 120, the docking member 120 is used to connect to the other of the cab 20 and the carriage 30, and a part of the docking member 120 extends into the scattering groove 113, and there is a gap between the docking member 120 extending into the scattering groove 113 and the groove wall of the scattering groove 113.

[0057] In this embodiment, the main body 100 is at least composed of two parts, namely the scattering member 110 and the docking member 120. The main body 100 is a non-integral structure, and the scattering member 110 is connected to one of the cab 20 and the carriage 30, and the docking member 120 is connected to the other of the cab 20 and the carriage 30. When the relative position between the cab 20 and the carriage 30 changes, the relative position between the scattering member 110 and the docking member 120 also changes. This makes the change in the relative position between the cab 20 and the carriage 30 not damage the internal structure of the main body 100. Thus, the noise reduction performance of the noise reduction component 10 is not affected, and the service life of the noise reduction component 10 is relatively long.

[0058] In specific implementation, the scattering groove 113 is provided on the scattering member 110, and a part of the docking member 120 extends into the scattering groove 113. The docking member 120 extending into the scattering groove 113 can scatter noise together with the scattering groove 113; and there is a gap between the docking member 120 extending into the scattering groove 113 and the groove wall of the scattering groove 113. This gap can prevent the change in the relative position between the cab 20 and the carriage 30 from damaging the internal structure of the main body 100; in addition, sound-absorbing layers are provided on both the scattering member 110 and the docking member 120, and a part of the docking member 120 extends into the scattering groove 113. When noise propagates into this gap, the sound-absorbing layers on the scattering member 110 and / or the docking member 120 on both sides of this gap can absorb the noise, which can prevent the noise from directly propagating upward from the above gap, and further prevent the noise from propagating into the cab 20.

[0059] Furthermore, please refer to Figure 2 and Figure 3, the scattering member 110 includes: a first connecting section 111, one end of the first connecting section 111 is used to connect to one of the cab 20 and the carriage 30; a scattering section 112, the scattering section 112 is connected to one end of the first connecting section 111, and the scattering section 112 is recessed along the direction away from the noise source of the first connecting section 111 to form a scattering groove 113.

[0060] By providing the first connecting section 111, one end of the first connecting section 111 is connected to one of the cab 20 and the carriage 30, and the scattering section 112 is connected to the other end opposite to the first connecting section 111. The first connecting section 111 plays a role in structurally supporting the scattering section 112.

[0061] It should be noted that the formation method of the scattering groove 113 includes at least the following two types:

[0062] First, the scattering member 110 is of an integral structure. The scattering section 112 is bent from the end of the first connecting section 111 along the direction away from the noise source, so that a scattering groove 113 is formed on the scattering section 112, and both sides of the scattering groove 113 are in a through state (as shown in Figure 2 and Figure 4 ). The formation method of this kind of scattering groove 113 is simple and only requires bending the scattering member 110.

[0063] Second, the scattering section 112 is connected to the other end opposite to the first connecting section 111, and a part of the structure on the scattering section 112 is formed into a scattering groove 113 after stamping. This kind of scattering groove 113 is a conventional groove-shaped structure with closed side walls (not shown).

[0064] It should also be noted that the embodiment of the present application does not specifically limit the connection method between the first connecting section 111 and one of the cab 20 and the carriage 30, which can be adjusted according to specific requirements. Exemplarily, the first connecting section 111 is welded, screwed or riveted to one of the cab 20 and the carriage 30.

[0065] Furthermore, waterproof glue can be applied at the connection position between the first connecting section 111 and one of the cab 20 and the carriage 30 to prevent water from entering the cab 20 or the carriage 30. It should be noted that the waterproof glue can be applied before the connection of the first connecting section 111, or after the connection of the first connecting section 111, or can be applied in both of these processes.

[0066] In some other embodiments, please refer to Figures 2 to 4 , the noise reduction assembly 10 of the vehicle further includes a first reinforcing rib 200. The first reinforcing rib 200 is connected to one of the cab 20 and the carriage 30, and the first reinforcing rib 200 is connected to the first connecting section 111 or the scattering section 112.

[0067] In this embodiment, in addition to being directly connected to one of the cab 20 and the carriage 30, the scattering member 110 is also connected to one of the cab 20 and the carriage 30 through the first reinforcing rib 200, making the connection between the scattering member 110 and one of the cab 20 and the carriage 30 firmer, so as to ensure that during the driving of the vehicle, the scattering member 110 will not become loose or detached from one of the cab 20 and the carriage 30.

[0068] In some other embodiments, the first reinforcing rib 200 connects the first connecting section 111 and the scattering section 112, and can strengthen the structural strength of the scattering member 110 itself.

[0069] In still some other embodiments, the first reinforcing rib 200 is connected to one of the cab 20 and the carriage 30, and the first reinforcing rib 200 connects the first connecting section 111 and the scattering section 112.

[0070] In this embodiment, the first reinforcing rib 200 can not only strengthen the structural strength of the scattering member 110 itself, but also ensure the firm and reliable connection between the scattering member 110 and one of the cab 20 and the carriage 30.

[0071] In still some other embodiments, please refer to Figure 4 , the first reinforcing rib 200, the first connecting section 111 and the scattering section 112 jointly enclose a drain opening 300.

[0072] In some scenarios, the first reinforcing rib 200 connects the first connecting section 111 and the scattering section 112, and water may accumulate between the first reinforcing rib 200, the first connecting section 111 and the scattering section 112. In this embodiment, by making the first reinforcing rib 200, the first connecting section 111 and the scattering section 112 jointly enclose the drain opening 300, the drain opening 300 can drain the accumulated water to avoid affecting the connection stability and noise reduction effect of the scattering member 110.

[0073] It should be noted that the present application does not limit the specific structure of the first reinforcing rib 200. Exemplarily, the first reinforcing rib 200 is in a strip shape, a plate shape or a block shape.

[0074] It should also be noted that the present application does not limit the number of the first reinforcing ribs 200, which can be set according to specific requirements. Exemplarily, the number of the first reinforcing ribs 200 is 1, 2 or 3.

[0075] It can be understood that the first reinforcing rib 200 can be connected to the side of the scattering member 110 or the middle of the scattering member 110, and the present application does not limit its specific connection position.

[0076] The present application also provides an embodiment (not illustrated in this embodiment), in which the scattering section 112 is a multi-fold structure. The part of the scattering section 112 close to the first connection section 111 is recessed along the direction of the first connection section 111 close to the noise source, and the part of the scattering section 112 away from the first connection section 111 is recessed along the direction of the first connection section 111 away from the noise source to form a scattering groove 113.

[0077] In this embodiment, the first reinforcing rib 200 can be connected to the part of the scattering section 112 close to the first connection section 111 rather than the part of the scattering section 112 away from the first connection section 111, which prevents water from accumulating on the scattering member 110.

[0078] In the embodiments of the present application, please refer to Figure 3 and Figure 4 , the docking member 120 includes: a second connection section 121 and a docking section 122. One end of the docking section 122 is connected to the other one of the cab 20 and the carriage 30 through the second connection section 121. The other opposite end of the docking section 122 extends along the direction away from the noise source, and the other opposite end of the docking section 122 extends into the scattering groove 113.

[0079] By providing the second connection section 121, one end of the docking section 122 is connected to the other one of the cab 20 and the carriage 30 through the second connection section 121, and the second connection section 121 plays a role in structurally supporting the docking section 122.

[0080] It should be noted that the present application embodiments do not specifically limit the connection manner between the second connection section 121 and the other one of the cab 20 and the carriage 30, which can be adjusted according to specific requirements. Exemplarily, the second connection section 121 is welded, screwed or riveted to one of the cab 20 and the carriage 30.

[0081] Furthermore, waterproof glue can be applied at the connection position between the second connection section 121 and the other one of the cab 20 and the carriage 30 to prevent water from entering the cab 20 or the carriage 30. It should be noted that the waterproof glue can be applied before the connection of the second connection section 121, or after the connection of the second connection section 121, or can be applied in both of these processes.

[0082] It should also be noted that the docking member 120 can be an integral structure. The docking section 122 is bent from the end of the second connection section 121 along the direction away from the noise source, so that the docking section 122 can extend into the scattering groove 113, and the formation of such a docking member 120 is relatively simple.

[0083] In some other embodiments, please refer to Figures 2 to 4, the noise reduction component 10 of the vehicle further includes a second reinforcing rib 400. The second reinforcing rib 400 connects the second connecting section 121 and the docking section 122, and can enhance the structural strength of the docking member 120 itself.

[0084] In some other embodiments, the second reinforcing rib 400 is connected to one of the cab 20 and the carriage 30, and the second reinforcing rib 400 is connected to at least one of the second connecting section 121 and the docking section 122.

[0085] The connection of the second reinforcing rib 400 between the second connecting section 121 and the docking section 122 can enhance the structural strength of the docking member 120 itself. The connection of the second reinforcing rib 400 between the docking member 120 and one of the cab 20 and the carriage 30 can ensure the firm and reliable connection between the docking member 120 and one of the cab 20 and the carriage 30.

[0086] In some embodiments, the main body 100 is a sound insulation member.

[0087] In this embodiment, the main body 100 is configured to have a sound insulation function, which can block the noise propagation path of the noise source to further improve the noise reduction effect of the noise reduction component 10, thereby improving the NVH performance of the vehicle.

[0088] Exemplarily, the main body 100 is a metal sound insulation member. The metal sound insulation member not only has high structural strength but also has good sound insulation effect. Specifically, the main body 100 can be a steel plate.

[0089] The main body 100 can also be injection molded with high-density materials such as polypropylene (PP), ethylene propylene diene monomer (EPDM), ethylene vinyl acetate (EVA), etc., so that the main body 100 can have both sound insulation and structural support functions.

[0090] The embodiments of the present application do not limit the specific type of the sound absorption layer, as long as the sound absorption effect can be achieved.

[0091] Exemplarily, the sound absorption layer is a sound absorption coating layer or a sound absorption cotton layer.

[0092] In specific implementation, the sound absorption material can be coated on the main body 100, so that a sound absorption coating layer is formed on the main body 100. The sound absorption cotton can also be bonded to the main body 100, so that a sound absorption cotton layer is formed on the main body 100. It should be noted that the sound absorption material and the sound absorption cotton are existing technical products in the art, and will not be elaborated herein.

[0093] In some specific embodiments, considering the comprehensive cost and weight, the thickness of the sound absorption coating layer can be set to 1.5 mm to 3 mm.

[0094] In some other specific embodiments, the sound-absorbing coating used for the sound-absorbing coating layer is a stone chip resistant coating, which can effectively reduce the impact and damage of external debris such as stones and mud on the coating, so as to ensure that the sound-absorbing effect of the sound-absorbing coating layer is not affected. The stone chip resistant coating is a technical product existing in the art and will not be elaborated herein.

[0095] It should be understood that the embodiments of the present application are not limited to the exact structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

Claims

1. A noise reduction component for a vehicle, characterized in that, include: A main body (100), the main body (100) being used to connect a driving cab (20) of a vehicle and a compartment (30) of the vehicle; a sound absorbing layer, the sound absorbing layer being arranged at the lower part of the main body (100); The main body (100) is provided with at least one scattering slot (113) for scattering noise, and the slot opening of the scattering slot (113) is used to face the noise source.

2. The noise reduction component of the vehicle according to claim 1, characterized in that, The width from the slot opening of the scattering slot (113) to the slot bottom of the scattering slot (113) gradually decreases.

3. The noise reduction component of the vehicle according to claim 2, characterized in that, The scattering groove (113) is a V-shaped groove, an arc-shaped groove or a trapezoidal groove.

4. The noise reduction component of the vehicle according to claim 1, characterized in that, The number of the scattering slots (113) is more than two, and the scattering slots (113) are arranged in sequence along the direction from the carriage (30) toward the cab (20).

5. The noise reduction component of the vehicle according to any one of claims 1-4, characterized in that The main body (100) comprises: A scattering member (110), the scattering member (110) being used to be connected to one of the driving cab (20) and the carriage (30), the scattering groove (113) being arranged on the scattering member (110); A docking piece (120) is used to connect with the other of the cab (20) and the carriage (30), a portion of the docking piece (120) extends into the scattering slot (113), and a gap exists between the docking piece (120) extending into the scattering slot (113) and a slot wall of the scattering slot (113).

6. The noise reduction component of a vehicle according to claim 5, characterized in that The scattering element (110) comprises: A first connecting section (111), one end of the first connecting section (111) being used to connect to one of the cab (20) and the carriage (30); A scattering section (112), wherein the scattering section (112) is connected to one end of the first connecting section (111), and the scattering section (112) is recessed along a direction of the first connecting section (111) away from the noise source to form the scattering groove (113).

7. The noise reduction component of the vehicle according to claim 6, characterized in that, It also includes a first reinforcing rib (200), wherein the first reinforcing rib (200) connects the first connecting section (111) and the scattering section (112).

8. The noise reduction component of the vehicle according to claim 7, characterized in that, The first reinforcing rib (200), the first connecting section (111) and the scattering section (112) together form a drainage outlet (300).

9. The noise reduction component of the vehicle according to any one of claims 1-4, characterized in that, The sound-absorbing layer is a sound-absorbing paint layer or a sound-absorbing cotton layer.

10. A vehicle, characterized in that, The vehicle noise reduction component (10) comprises a driving cab (20), a vehicle compartment (30), and the vehicle noise reduction component (10) according to any one of claims 1 to 9 connected between the driving cab (20) and the vehicle compartment (30).

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