Noise reduction components, fuel tank and vehicle

Abstract

This application provides a noise reduction component, a fuel tank, and a vehicle, belonging to the field of vehicle technology. The noise reduction component includes: a support column, a first fin, and a second fin; the support column is a hollow column; the first end of the first fin and the first end of the second fin are respectively connected to opposite sides of the support column along a first direction; the first direction is parallel to the diameter direction of the support column; the second ends of the first and second fins are respectively suspended and bent towards their respective ends in a second direction, such that the projections of the first and second fins along the axial direction of the support column are arc-shaped, and the central angle α corresponding to the arc shape satisfies a target value range; the second direction is perpendicular to both the first direction and the axial direction of the support column. The noise reduction component of this application can reduce the impact of fluids and decrease the abnormal noise generated when fluids hit a flat wall surface, thereby reducing noise.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to a noise reduction component, a fuel tank, and a vehicle. Background Technology

[0002] With the development of vehicle technology, people have increasingly higher requirements for driving comfort. Among these factors, the level of noise inside the vehicle has a significant impact on driving comfort.

[0003] In related technologies, fuel tanks are required for all types of vehicles, including gasoline-powered vehicles, hybrid electric vehicles, and range-extended electric vehicles. During braking, parking, and other maneuvers, the gasoline in the fuel tank, due to its inertia from acceleration, creates waves that impact and slap against the tank walls, producing a "thumping" noise, or a "gurgling" sound through the hollow structure on the upper surface of the tank. These noises may be transmitted into the passenger compartment, affecting the vehicle's comfort. Summary of the Invention

[0004] This application provides a noise reduction component, a fuel tank, and a vehicle, which can solve the problem of abnormal noise caused by gasoline in the fuel tank due to inertia.

[0005] The technical solution is as follows:

[0006] On the one hand, a noise reduction component is provided, the noise reduction component comprising: a support column, a first fin, and a second fin;

[0007] The support column is a hollow column shape;

[0008] The first end of the first fin and the first end of the second fin are respectively connected to opposite sides of the support column along a first direction; the first direction is parallel to the diameter direction of the support column;

[0009] The second ends of the first fin and the second fin are respectively suspended and bent toward the two ends in the second direction, so that the projections of the first fin and the second fin along the axial direction of the support column are arcs, and the central angle α corresponding to the arcs satisfies the target value range.

[0010] The second direction is perpendicular to both the first direction and the axial direction of the support column.

[0011] In some embodiments, the noise reduction component is configured such that when the fluid moves along the second direction, the first fin and the second fin can block the fluid, causing the fluid to form eddies on the surfaces of the first fin and the second fin.

[0012] In some embodiments, the support column is provided with positioning flanges at both axial ends, and the positioning flanges are provided with positioning holes in the middle. The positioning flanges are used to abut against two opposite inner walls of the fuel tank, and the positioning holes are used to insert positioning columns on the corresponding inner walls of the fuel tank.

[0013] In some embodiments, the edge of the positioning flange is provided with at least one positioning notch, and the inner wall of the fuel tank is provided with at least one positioning protrusion, wherein the at least one positioning notch and the at least one positioning protrusion are connected in a mating manner.

[0014] In some embodiments, the target value range of the central angle α corresponding to the arc is 30°-90°.

[0015] In some embodiments, the first fin and the second fin are respectively provided with a plurality of flow holes, and each flow hole passes through the corresponding first fin or second fin along the second direction.

[0016] In some embodiments, a leakage gap is provided between the first end of the first fin and the first end of the second fin and the surface of the support column, respectively.

[0017] On the other hand, a fuel tank is provided, which includes the noise reduction component described in this application.

[0018] In some embodiments, the fuel tank is made of plastic and is processed by injection molding; the noise reduction component is preset in the injection cavity, and the top and bottom ends of the support column are respectively provided with support spikes, the height of the support spikes is equal to the wall thickness of the fuel tank, and the melting point of the support spikes is lower than that of the plastic material;

[0019] The support spikes are used to support and fix the noise reduction component in the injection cavity, and melt during the injection process, so that the top and bottom ends of the support column are filled with the plastic material respectively.

[0020] On the other hand, a vehicle is provided that includes the noise reduction components described in this application, or that employs the fuel tank described in this application.

[0021] The beneficial effects of the technical solution provided in this application include at least the following:

[0022] The noise reduction component of this application has a first fin and a second fin respectively provided on opposite sides of the support component. The first fin and the second fin are respectively curved. The axial projection of the first fin and the second fin on the support column is an arc shape. When the fluid impacts the first fin or the second fin, the first fin or the second fin can guide the fluid with the arc surface. The surface of the first fin and the second fin forms a swirling flow, which disturbs the fluid and buffers the impact energy of the fluid, reduces the impact of the fluid, and reduces the abnormal noise generated when the fluid hits the flat wall surface, thereby achieving the effect of reducing noise. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of the noise reduction component provided in the embodiments of this application;

[0025] Figure 2 This is a structural cross-sectional view of the noise reduction component provided in the embodiments of this application;

[0026] Figure 3 This is a structural cross-sectional view of a noise reduction component provided in another embodiment of this application;

[0027] Figure 4 This is a schematic diagram showing the connection between the noise reduction component and the fuel tank provided in an embodiment of this application;

[0028] Figure 5 This is a schematic diagram showing the connection between a noise reduction component and a fuel tank according to another embodiment of this application;

[0029] Figure 6 This is a schematic diagram of the structure of a noise reduction component provided in another embodiment of this application;

[0030] Figure 7 This is a schematic diagram of the preset structure of the noise reduction component in the injection cavity during the fuel tank injection molding process provided in this application embodiment.

[0031] The reference numerals in the figure are respectively:

[0032] a) First direction; b) Second direction;

[0033] 1. Support column;

[0034] 11. Positioning flange; 111. Positioning notch; 12. Positioning hole;

[0035] 2. First fin;

[0036] 21. Flow hole;

[0037] 3. Second fin;

[0038] 4. Positioning post;

[0039] 5. Positioning protrusion;

[0040] 6. Positioning groove;

[0041] 7. Leakage gap;

[0042] 8. Support buckle;

[0043] 9. Injection cavity;

[0044] 10. Support spikes. Detailed Implementation

[0045] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0046] In the description of this application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the purpose of facilitating and simplifying the description of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0047] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0048] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0049] On the one hand, combined with Figure 1 As shown, this embodiment provides a noise reduction component, which includes: a support column 1, a first fin 2, and a second fin 3.

[0050] The support column 1 is a hollow column; the first end of the first fin 2 and the first end of the second fin 3 are respectively connected to the opposite sides of the support column 1 along the first direction a; the first direction a is parallel to the diameter direction of the support column 1.

[0051] The second ends of the first fin 2 and the second ends of the second fin 3 are suspended and bent toward the two ends of the second direction b, so that the projections of the first fin 2 and the second fin 3 along the axis of the support column 1 are arcs, and the central angle α corresponding to the arcs satisfies the target value range; the second direction b is perpendicular to the first direction a and the axis of the support column 1, respectively.

[0052] In this embodiment, the noise reduction component has a first fin 2 and a second fin 3 on opposite sides of the support component. The first fin 2 and the second fin 3 are curved, and the projection of the first fin 2 and the second fin 3 onto the axial direction of the support column 1 is an arc shape. When the fluid impacts the first fin 2 or the second fin 3, the first fin 2 or the second fin 3 can guide the fluid using the arc-shaped surface. The surface of the first fin 2 and the second fin 3 forms a swirling flow, which disturbs the fluid and buffers the impact energy of the fluid, reducing the impact of the fluid and reducing the abnormal noise generated when the fluid hits the flat wall surface, thus achieving the effect of reducing noise.

[0053] In some possible implementations, the support column 1 is a hollow cylinder. The hollow support column 1 has a smaller mass, which helps to reduce the mass of the noise reduction component.

[0054] The cylindrical support column 1 has a smooth surface and can produce the same guiding effect as the first fin 2 or the second fin 3, preventing abnormal noise when the airflow impacts the support column 1.

[0055] In some other possible implementations, the support column 1, the first fin 2, and the second fin 3 are all made of stainless steel.

[0056] In some other possible implementations, the first fin 2 and the second fin 3 are both sheet metal products.

[0057] Combination Figure 2 As shown, in some embodiments, the noise reduction component is configured such that when the fluid moves along the second direction b, the first fin 2 and the second fin 3 can block the fluid, causing the fluid to form vortices on the surfaces of the first fin 2 and the second fin 3.

[0058] In this embodiment, when the noise reduction component is used, the second direction b is arranged to coincide with the direction of fluid movement. So when the fluid moves along the second direction b and impacts the first fin 2 and the second fin 3, since the first fin 2 and the second fin 3 are arc-shaped, the fluid will form a vortex along the arc-shaped surface when it impacts the arc-shaped surface. On the one hand, it can reduce its own impact energy, and on the other hand, the vortex can buffer the fluid behind it and absorb the kinetic energy of the fluid, so that the impact energy of the fluid is reduced, and no noise will be generated when the fluid impacts the box wall.

[0059] Among some possible implementations, refer to Figure 2 As shown, the center O1 of the first fin 2 projected along the axial direction of the support column 1, and the center O2 of the second fin 3 projected along the axial direction of the support column 1, are located on both sides of the support column 1 along the first direction a and on both sides of the support column 1 along the second direction b.

[0060] With the above arrangement, the first fin 2 and the second fin 3 can be concave structures facing the direction of fluid impact and convex structures facing the direction of fluid impact, respectively, which can buffer the fluid.

[0061] Among other possible implementations, see reference Figure 3 As shown, the center O1 of the first fin 2 projected along the axial direction of the support column 1, and the center O2 of the second fin 3 projected along the axial direction of the support column 1, are located on both sides of the support column 1 along the second direction b, and the line connecting the centers O1 and O2 intersects the axis of the support column 1.

[0062] With the above arrangement, the first fin 2 and the second fin 3 can form an integrated S-shaped flow guiding structure, which guides and buffers the incoming fluid to one side.

[0063] Combination Figure 1 and Figure 4 As shown, in some embodiments, the support column 1 is provided with positioning flanges 11 at both ends of the axial direction, and positioning holes 12 are provided in the middle of the positioning flanges 11. The positioning flanges 11 are used to abut against the two opposite inner walls of the fuel tank respectively, and the positioning holes 12 are used to insert the positioning columns 4 on the corresponding inner walls of the fuel tank.

[0064] With the above arrangement, positioning flanges 11 are provided at both ends of the axial direction of the support column 1. The positioning flanges 11 can be used to support and fix the support column 1 on the two opposite inner walls of the fuel tank. The first fin 2 and the second fin 3 are arranged on the two opposite inner walls of the fuel tank. When the fuel in the fuel tank is impacted by inertia flowing in the fuel tank, the first fin 2 and the second fin 3 can buffer the fuel and reduce the abnormal noise caused by the fuel impacting the fuel tank wall.

[0065] In some possible implementations, the support column 1 is arranged vertically, the positioning flange 11 at the top of the support column 1 abuts against the inner wall of the top of the fuel tank, the positioning flange 11 at the bottom of the support column 1 abuts against the inner wall of the bottom of the fuel tank, and the projection of the first fin 2 and the second fin 3 in the vertical direction is arc-shaped.

[0066] Combination Figure 5 As shown, in some embodiments, the edge of the positioning flange 11 is provided with at least one positioning notch 111, and the inner wall of the fuel tank is provided with at least one positioning protrusion 5. The at least one positioning notch 111 and the at least one positioning protrusion 5 are connected in a cooperative manner.

[0067] With the above arrangement, the positioning flange 11 can be connected to the positioning protrusion 5 on the inner wall of the fuel tank by using the positioning notch 111, thereby realizing the circumferential positioning of the positioning flange 11 and the support column 1, so that the noise reduction component can be fixed and limited in the direction that coincides with the direction of fluid movement in the second direction b, thereby ensuring that the fluid can smoothly impact the first fin 2 and the second fin 3, buffering the impact energy of the fluid and reducing the abnormal noise of fluid impact in the fuel tank.

[0068] In some possible implementations, there are multiple positioning notches 111 and multiple positioning protrusions 5. Multiple positioning notches 111 are arranged at intervals along the circumferential edge of the positioning flange 11. The positions of the positioning protrusions 5 correspond one-to-one with the positions of the positioning notches 111. Multiple positioning protrusions 5 are arranged in a ring.

[0069] In some other possible implementations, the inner wall of the fuel tank is provided with a positioning groove 6, the shape of which is the same as that of the positioning flange 11, and the positioning flange 11 can be inserted into the positioning groove 6.

[0070] The positioning protrusion 5 is located on the circumferential inner wall of the positioning groove 6. When the positioning flange 11 is inserted into the positioning groove 6, the positioning protrusion 5 and the positioning notch 111 are engaged in a one-to-one snap-fit.

[0071] In some possible implementations, the two positioning flanges 11 located at both ends of the support column 1 may have a positioning notch 111 on one of the positioning flanges 11, or both positioning flanges 11 may have a positioning notch 111.

[0072] For example, when the support column 1 is arranged in a vertical direction, the positioning flange 11 at the bottom end of the support column 1 is also provided with a positioning notch 111, and the bottom inner wall of the fuel tank is provided with a positioning groove 6 and a positioning protrusion 5.

[0073] In some embodiments, the target value range of the central angle α corresponding to the arc is 30°-90°.

[0074] When the central angle α of the arc formed by the projection of the first fin 2 and the second fin 3 along the axial direction of the support axis satisfies the above-mentioned difference range, the first fin 2 and the second fin 3 have better buffering and noise reduction effects.

[0075] In some possible implementations, the central angle α corresponding to the arc can take values ​​of 30°, 40°, 50°, 60°, 70°, 80°, 90°, etc.

[0076] Combination Figure 1 As shown, in some embodiments, the first fin 2 and the second fin 3 are respectively provided with a plurality of flow holes 21, and each flow hole 21 passes through the corresponding first fin 2 or the corresponding second fin 3 along the second direction b.

[0077] With the above arrangement, when the fluid impacts the first fin 2 and the second fin 3, a portion of the fluid can pass through the flow hole 21 through the first fin 2 to disperse the fluid. The flow hole 21 can continuously dilute the vortex formed by the fluid impacting the first fin 2 and the second fin 3, and the vortex energy is gradually consumed, avoiding large fluctuations in the liquid level in the fuel tank caused by the vortex.

[0078] If the vortex energy inside the fuel tank is large, it will cause large fluctuations in the fuel level. If the local fuel level is too low, it may reduce the fuel supply to the fuel tank, while if the local fuel level is too high, it may clog the fuel tank's vent valve.

[0079] Therefore, by utilizing the multiple flow holes 21 on the first fin 2 and the second fin 3, the energy of the vortex is gradually consumed, which helps to maintain the liquid level balance in the fuel tank and avoid reduced fuel supply or blockage of the vent valve.

[0080] In some possible implementations, multiple flow holes 21 are arranged in an array on the first fin 2 or the second fin 3.

[0081] Combination Figure 6 As shown, in some embodiments, a leakage gap 7 is provided between the first end of the first fin 2 and the first end of the second fin 3 and the surface of the support column 1, respectively.

[0082] With the above arrangement, a leakage gap 7 is provided between the first fin 2 and the second fin 3 and the surface of the support column 1, so that when the fluid guided by the first fin 2 and the second fin 3 flows to the position of the support column 1, it can pass through the leakage gap 7, thus avoiding the fluid directly hitting the surface of the support column 1.

[0083] In some possible implementations, the first end of the first fin 2 and the support post 1 are connected by a support buckle 8, and the second end of the second fin 3 and the support post 1 are connected by a support buckle 8. The support buckle 8 can achieve quick snap-fit ​​assembly, which is beneficial to improving the assembly efficiency of the first fin 2 and the second fin 3.

[0084] In some possible implementations, combining Figure 3 When the center O1 corresponding to the axial projection of the first fin 2 along the support column 1 and the center O2 corresponding to the axial projection of the second fin 3 along the support column 1 are located on both sides of the support column 1 along the second direction b, and the line connecting the centers O1 and O2 intersects the axis of the support column 1, forming an integral S-shaped flow guiding structure, the first fin 2 and the second fin 3 can guide and buffer the incoming fluid to one side. At this time, the leakage gap 7 between the first fin 2 and the second fin 3 and the surface of the support column 1 can further absorb the energy of the vortex and improve the noise reduction effect of the noise reduction component.

[0085] On the other hand, this embodiment provides a fuel tank that includes the noise reduction component of this application.

[0086] The fuel tank in this embodiment uses the noise reduction component of this application and has all the beneficial technical effects of all embodiments herein.

[0087] In some possible implementations, the number of noise reduction components arranged inside the fuel tank is not limited to one; it can be two, three, or more. Multiple noise reduction components can be arranged side-by-side and in an array inside the fuel tank. The second direction b corresponding to the multiple noise reduction components can be parallel or non-parallel, thereby enabling noise reduction for fuel flowing in a single direction or for fuel flowing in multiple different directions.

[0088] The overall size and number of noise reduction components can be determined based on the volume and shape of the fuel tank.

[0089] Combination Figure 7 As shown, in some embodiments, the fuel tank is made of plastic and is processed by injection molding; the noise reduction component is preset in the injection cavity 9, and the top and bottom ends of the support column 1 are respectively provided with support spikes 10. The height of the support spikes 10 is equal to the wall thickness of the fuel tank, and the melting point of the support spikes 10 is lower than that of the plastic material.

[0090] The support spikes 10 are used to support and fix the noise reduction components in the injection cavity 9, and melt during the injection process, so that the top and bottom of the support column 1 are filled with plastic material respectively.

[0091] With the above arrangement, when a fuel tank made of plastic is used, during the injection molding process of the fuel tank, the noise reduction component can be suspended and supported in the injection cavity 9 by the support spikes 10. When the liquid plastic is injected into the injection cavity 9, since the melting point of the plastic is higher than that of the support spikes 10, the support spikes 10 will gradually melt, and the space at both ends of the support column 1 will be filled with liquid plastic. After cooling, it forms the inner wall of the fuel tank. After the fuel tank is formed, the noise reduction component is built into the fuel tank.

[0092] On the other hand, this embodiment provides a vehicle that includes the noise reduction component of this application or uses the fuel tank of this application.

[0093] The vehicle in this embodiment uses the noise reduction components or fuel tank of this application, and has all the beneficial technical effects of all embodiments herein.

[0094] In a vehicle scenario, when a vehicle starts or brakes, the fuel in the fuel tank typically flows forward or backward due to inertia. In this case, aligning the second direction (b) of the noise reduction component with the vehicle's forward or backward direction allows the component to absorb and buffer the fuel's energy, preventing fuel from slapping against the fuel tank and causing abnormal noise.

[0095] It should be noted that in this article, "several" and "at least one" refer to one or more, while "multiple" and "at least two" refer to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0096] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0097] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0098] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0099] In the description of this specification, the references to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" refer to specific features, structures, materials, or characteristics described in connection with the embodiments or examples that are included in at least one embodiment or example of this application.

[0100] The above description is merely an embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the principles of this application should be included within the protection scope of this application.

Claims

1. A noise reduction component, characterized in that, The noise reduction component includes: a support column (1), a first fin (2), and a second fin (3); The support column (1) is cylindrical; The first end of the first fin (2) and the first end of the second fin (3) are respectively connected to opposite sides of the support column (1) along the first direction (a); the first direction (a) is parallel to the diameter direction of the support column (1); The second end of the first fin (2) and the second end of the second fin (3) are respectively suspended and bent toward the two ends of the second direction (b), so that the projections of the first fin (2) and the second fin (3) along the axis of the support column (1) are respectively arc-shaped, and the central angle α corresponding to the arc shape satisfies the target value range. The second direction (b) is perpendicular to the first direction (a) and the axis of the support column (1), respectively.

2. The noise reduction component according to claim 1, characterized in that, The noise reduction component is configured such that when the fluid moves along the second direction (b), the first fin (2) and the second fin (3) can block the fluid, causing the fluid to form vortices on the surfaces of the first fin (2) and the second fin (3).

3. The noise reduction component according to claim 1, characterized in that, The support column (1) has positioning flanges (11) at both ends of its axial direction. The positioning flanges (11) have positioning holes (12) in the middle. The positioning flanges (11) are used to abut against the two opposite inner walls of the fuel tank. The positioning holes (12) are used to insert the positioning columns (4) on the corresponding inner walls of the fuel tank.

4. The noise reduction component according to claim 3, characterized in that, The edge of the positioning flange (11) is provided with at least one positioning notch (111), and the inner wall of the fuel tank is provided with at least one positioning protrusion (5). The at least one positioning notch (111) and the at least one positioning protrusion (5) are connected in a cooperative manner.

5. The noise reduction component according to claim 1, characterized in that, The target value range for the central angle α corresponding to the arc is 30°-90°.

6. The noise reduction component according to any one of claims 1 to 5, characterized in that, The first fin (2) and the second fin (3) are respectively provided with a plurality of flow holes (21), and each flow hole (21) passes through the corresponding first fin (2) or second fin (3) along the second direction (b).

7. The noise reduction component according to any one of claims 1 to 5, characterized in that, A leakage gap (7) is provided between the first end of the first fin (2) and the first end of the second fin (3) and the surface of the support column (1).

8. A fuel tank, characterized in that, The fuel tank includes the noise reduction component as described in any one of claims 1 to 7.

9. The fuel tank according to claim 8, characterized in that, The fuel tank is made of plastic and is processed by injection molding. The noise reduction component is preset in the injection cavity (9). The top and bottom of the support column (1) are respectively provided with support spikes (10). The height of the support spikes (10) is equal to the wall thickness of the fuel tank, and the melting point of the support spikes (10) is lower than that of the plastic material. The support spikes (10) are used to support and fix the noise reduction component in the injection cavity (9) and melt during the injection process, so that the top and bottom ends of the support column (1) are filled with the plastic material respectively.

10. A vehicle, characterized in that, The vehicle includes a noise reduction component as described in any one of claims 1 to 7, or a fuel tank as described in any one of claims 8 to 9.

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