Noise-reducing wheel and vehicle

Abstract

The invention relates to a noise-reducing wheel and a vehicle. The noise-reducing wheel comprises a rim and a sound-absorbing cotton component. The cotton component is bonded to an outer circumferential surface of the rim, and this outer circumferential surface of the cotton component has a plurality of sound-absorbing grooves. By bonding the cotton component to the rim, during noise vibration, friction is generated with the internal pore wall surface of the cotton component to convert sound energy into thermal energy, thus achieving the noise reduction effect. The bonding process is simplified, and its efficiency is improved. The surface area of ​​the cotton component can be increased, thereby increasing the sound-absorbing area of ​​the pores and enhancing the noise reduction effect. Figure for the abstract: Fig. 1

Description

Title of the invention: Noise-reducing wheel and vehicle technical field

[0001] The utility model relates to the technical field of wheels, in particular to a noise-reducing wheel and a vehicle.

[0002] BACKGROUND

[0003] With the development of new energy vehicles, battery, motor, and electronic control system technologies are becoming increasingly mature and advanced. Compared to conventional fuel vehicles, new energy vehicles have no engine, no engine noise or exhaust sound, and fewer drive system components. Due to the unique low-noise operating characteristic of the electric control system, other vehicle noises during high-speed driving will be amplified. For example, wind noise, road noise, tire noise, and the like become more noticeable. A wheel assembly, as the only component of an entire vehicle in contact with the ground, is a primary transmission component for the activation of road noise. The wheel assembly comprises a wheel and a tire.Once the wheel assembly is installed, a cavity exists between the wheel and the tire. During the subsequent invention of the wheel assembly process, for example, during high-speed driving, the excitation generated by an uneven road surface on the tire can cause the transmission and reflection of noise in the cavity between the wheel and the tire. When the frequency reaches a certain level, the noise reaches a peak, known as cavity noise, which is very difficult to resolve.

[0004] Currently, cavity noise is reduced according to the principle that the noise is attenuated when it passes through small pores by gluing a sound-absorbing cotton component to the inside of the tire. However, this method presents problems of high cost, complexity of the cotton gluing process, and the like.

[0005] SUMMARY

[0006] Certain embodiments of the present invention provide a noise-reducing wheel and a vehicle. The noise-reducing wheel can reduce driving noise, lower costs, simplify the process, and improve noise reduction efficiency.

[0007] In order to resolve the aforementioned technical problems, a technical solution adopted in the present invention consists of providing a noise-reducing wheel and a vehicle. The noise-reducing wheel comprises a rim and a sound-absorbing cotton component. The sound-absorbing cotton component is bonded to an outer circumferential surface of the rim, and an outer circumferential surface of the The sound-absorbing cotton component is provided with a plurality of sound-absorbing grooves.

[0008] The depth of each of the plurality of sound-absorbing grooves is less than or equal to half the thickness of the sound-absorbing cotton component.

[0009] The width of each of the plurality of sound-absorbing grooves is between 8 mm and 12 mm.

[0010] The width and depth of each of the plurality of sound-absorbing grooves and the depth of each of the plurality of sound-absorbing grooves are equal.

[0011] The plurality of sound-absorbing grooves is uniformly distributed at the center of a circle surrounding the rim, and each of the plurality of sound-absorbing grooves extends along an axis of the rim.

[0012] The sound-absorbing cotton component further comprises an adhesive layer, and the adhesive layer is glued to the outer circumferential surface of the rim.

[0013] The rim has an outer annular circumferential surface; the sound-absorbing cotton component is disposed on the outer annular circumferential surface and completely covers the outer annular circumferential surface; and the plurality of sound-absorbing grooves is disposed on an outer side wall of the sound-absorbing cotton component opposite the outer annular circumferential surface.

[0014] The rim is equipped with a tire pressure sensor, and the tire pressure sensor is arranged convexly on one side of the outer annular circumferential surface near an edge of the outer annular circumferential surface in an axial direction; and the sound-absorbing cotton component is further provided with a position avoidance groove, and the tire pressure sensor is located in the position avoidance groove.

[0015] The sound-absorbing groove extends along an axis of the annular external circumferential surface.

[0016] The present invention also presents a second technical solution which provides a vehicle, comprising the above noise-reducing wheel.

[0017] The present invention has the following beneficial effects: unlike prior art, according to the noise-reducing wheel and the vehicle provided by the present invention, the noise-reducing wheel comprises a rim and a sound-absorbing cotton component; and the sound-absorbing cotton component is bonded to an external circumferential surface of the rim, and an external circumferential surface of the sound-absorbing cotton component is provided with a plurality of sound-absorbing grooves. Specifically, by bonding the sound-absorbing cotton component to the rim, during noise vibration, friction is generated between the noise and a wall surface of internal pores in the sound-absorbing cotton component to convert the sound energy into thermal energy, so that The noise reduction effect can be achieved, the bonding process is simplified, bonding efficiency is improved, and the cost is reduced. In some embodiments, by creating sound-absorbing grooves on the outer circumferential surface of the sound-absorbing cotton component, the surface area of ​​the sound-absorbing cotton component can be increased, thereby increasing the sound-absorbing area of ​​the pores and improving the noise reduction effect. Brief description of the drawings

[0018] In order to illustrate more clearly the technical solutions in the embodiments of the present invention, the accompanying drawings necessary for the description in the embodiments will be briefly presented below. It is evident that the accompanying drawings in the following description represent only certain embodiments of the present invention. A person of ordinary skill can also obtain other accompanying drawings based on these accompanying drawings without any creative work, in which

[0019] [Fig.1] is a schematic structural view of an embodiment of a noise reduction wheel of the present invention;

[0020] [Fig.2] is a schematic structural view of another embodiment of a noise-reducing wheel of the present invention;

[0021] [Fig.3] is a schematic structural view of a section aa of another embodiment of a noise reduction wheel of the present invention;

[0022] [Fig.4] is an enlarged schematic structural view of a local part A of another embodiment of a noise reduction wheel of the present invention;

[0023] [Fig. 5] is a schematic structural view of yet another embodiment of a noise-reducing wheel of the present invention; and

[0024] [Fig.6] is an enlarged schematic structural view of a local part B of yet another embodiment of a noise reduction wheel of the present invention.

[0025] DETAILED DESCRIPTION OF THE EMBODIMENT METHODS

[0026] In order to make the objectives, features, and advantages of the present invention more evident and understandable, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. It may be understood that the specific embodiments described herein serve only to explain the present invention and are not intended to limit it. Furthermore, it should be noted that, to facilitate description, only a portion of the structure related to the present invention is shown in the accompanying drawings, and not the entire structure. Based on the embodiments in the present invention, all other embodiments that can be achieved by a person of ordinary skill without any creative work fall within the scope of the present invention.

[0027] The reference to an "embody" here means that elements, structures, or features described in combination with the embodiments are included in at least one embodiment of the present invention. The expression appearing in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or mutually exclusive alternative embodiment of other embodiments. Those skilled in the art will understand, both explicitly and implicitly, that the embodiments described herein can be combined with other embodiments.

[0028] In the description of the present invention, the terms "first" and "second" are used solely for descriptive purposes and shall not be construed as indicating or implying relative importance or implicitly indicating the number of technical features listed. Therefore, a feature delimited by "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "a plurality of" means two or more, unless otherwise definitively and specifically limited.

[0029] In the description of the present invention, it should be noted that, unless otherwise limited and definitively specified, the terms "install," "connected," and "connect" should be understood in a broad sense, for example, fixed connection, removable connection, or integrated connection; mechanical connection, electrical connection, or mutual communication; or direct connection, indirect connection via an intermediate medium, internal communication between two elements, or interaction relationship between two elements. Those with ordinary knowledge can understand the specific meanings of the above terms in the present invention according to specific situations.

[0030] With reference to Figures 1 to 6, one aspect of the present invention provides a noise-reducing wheel 100. The noise-reducing wheel 100 comprises a rim 1 and a sound-absorbing cotton component 2. The sound-absorbing cotton component 2 is bonded to an external circumferential surface of the rim 1, and an external circumferential surface of the sound-absorbing cotton component 2 is provided with a plurality of sound-absorbing grooves 21. Specifically, by bonding the sound-absorbing cotton component 2 to the rim 1, the noise reduction effect can be achieved, the bonding process is simplified, the bonding efficiency is improved, and the cost is reduced.In some embodiments, by making the sound-absorbing grooves 21 on the external circumferential surface of the sound-absorbing cotton component 2, the surface area of ​​the sound-absorbing cotton component 2 can be increased, thereby increasing the sound-absorbing area of ​​the pores and improving the noise reduction effect.

[0031] It should be noted that the noise reduction principle of the sound-absorbing cotton component 2 in the embodiments of the present invention is: on the one hand, the sound-absorbing cotton component 2 has a porous structure, a larger internal pore wall surface, friction is generated between the noise and the pore wall surface during the vibration of the noise, and part of the sound energy is converted into thermal energy, thereby reducing the reflection and transmission of sound waves, reducing the noise, and achieving the noise reduction effect; and on the other hand, the sound-absorbing cotton component 2 having the porous structure prevents the flow of air in a cavity formed between a tire and a wheel, thereby further reducing the resonance noise of the cavity.In embodiments of the present invention, by creating sound-absorbing grooves 21 on the outer circumferential surface of the sound-absorbing cotton component 2, the surface area of ​​the pore walls can be increased, the friction generated with the pore walls during noise vibration is increased, and a greater amount of sound energy is converted into thermal energy, thereby improving noise reduction efficiency. In some cases, by creating the sound-absorbing grooves 21, the pores of the sound-absorbing cotton component 2 are made denser in order to further impede airflow in the cavity, thereby hindering noise propagation and improving the noise reduction effect.

[0032] In one specific embodiment, the width of the sound-absorbing cotton component 2 is between 95 mm and 105 mm, for example, 95 mm, 100 mm, or 105 mm, so that the sound-absorbing cotton component 2 can be adapted to rims 1 of different specifications and types, and can completely surround the outer circumferential surface of the rim 1 in a circle in order to increase the number of pores and the contact area with the noise, and improve the effectiveness of the noise reduction. Furthermore, the sound-absorbing cotton component 2 is completely bonded to the outer circumferential surface of the rim 1 in a circle, which promotes tire uniformity and can prevent the risk of steering wheel vibration at high speeds. In another specific embodiment, the sound-absorbing cotton component 2 consists of polyurethane sponge cut into strips as the sound-absorbing material in the cavity.Thanks to the lightweight and soft texture characteristics of the sound-absorbing cotton component 2, the undesirable effects of the sound-absorbing cotton component 2 on other properties of a wheel assembly can be reduced.

[0033] In one embodiment of the present invention, the depth of each of the plurality of sound-absorbing grooves 21 is less than half the thickness of the sound-absorbing cotton component 2. In another embodiment of the present invention, the depth of the sound-absorbing groove 21 may also be equal to half the thickness of the sound-absorbing cotton component 2. For example, if the thickness of the sound-absorbing cotton component 2 is 10 mm, the depth of the sound-absorbing groove 21 is 5 mm. In this way, it is possible to prevent the tensile properties of the sound-absorbing cotton component 2 from being affected by an excessive depth of the sound-absorbing grooves 21. In a specific embodiment, the thickness of the sound-absorbing cotton component 2 is between 10 mm and 18 mm, and correspondingly, the depth of the sound-absorbing groove 21 is between 5 mm and 9 mm.

[0034] In one embodiment of the present invention, the width of each of the plurality of sound-absorbing grooves 21 is between 8 mm and 12 mm, such as 8 mm, 9 mm, 10 mm, 11 mm or 12 mm, in order to control the size of the sound-absorbing groove 21. By comparing the size of the sound-absorbing groove 21 to the size of the area of ​​the external circumferential surface of the sound-absorbing cotton component 2, the number of sound-absorbing grooves 21 can be controlled in order to reduce the production cost and simplify the process.It should be noted that the smaller the width of the sound-absorbing groove 21, the higher the number of corresponding sound-absorbing grooves 21 will be on the sound-absorbing cotton component 2, which will increase the cost and complexity of processing procedures such as die-cutting; and the larger the width of the sound-absorbing groove 21, the smaller the number of corresponding sound-absorbing grooves 21 will be, which will reduce the surface area of ​​the sound-absorbing cotton component 2 in contact with the noise and affect the sound absorption effect.

[0035] In some embodiments, the width of each of the plurality of sound-absorbing grooves 21 is equal, which aims to make the external circumferential surface of the sound-absorbing cotton component 2 more orderly to improve the aesthetic appearance, and can also improve or avoid the situation in which the propagation of noise is concentrated at one point or in a certain area to influence the sound absorption effect due to the fact that the non-uniform sound-absorbing area is increased by the arrangement of the sound-absorbing groove 21.

[0036] In some embodiments, the depth of each of the plurality of sound-absorbing grooves (21) is equal.

[0037] In one embodiment of the present invention, the plurality of sound-absorbing grooves 21 is uniformly distributed along the center of a circle surrounding the rim 1, and each of the plurality of sound-absorbing grooves 21 extends along an axis of the rim 1 to increase the uniformity of the surface of the sound-absorbing cotton component 2, thereby improving or avoiding the risk of steering wheel vibration during high-speed driving caused by the uniformity of the affected wheel assembly.

[0038] In one specific embodiment, the sound-absorbing cotton component 2 is provided with six sound-absorbing grooves 21, and the six sound-absorbing grooves 21 are uniformly distributed along the center of a circle surrounding the rim 1 to increase the uniformity of the outer circumferential surface of the sound-absorbing cotton component 2. In another specific embodiment, four sound-absorbing grooves 21 are provided. In yet another embodiment, six or more sound-absorbing grooves 21 are provided.

[0039] In one embodiment of the present invention, the sound-absorbing cotton component 2 further comprises an adhesive layer 22, and the adhesive layer 22 is glued to the external circumferential surface of the rim 1.

[0040] Specifically, one side of the adhesive layer 22 is bonded to the outer circumferential surface of the rim 1, and the other side of the adhesive layer 22 is connected to an inner circumferential surface of the sound-absorbing cotton component 2. The sound-absorbing cotton component 2 is bonded to the outer circumferential surface of the rim 1 via the adhesive layer 22. The width of the adhesive layer 22 is between 95 mm and 105 mm, such as 95 mm, 100 mm, or 105 mm, to accommodate different widths of the sound-absorbing cotton component 2.In a specific embodiment, the sound-absorbing cotton component 2 can completely cover the adhesive layer 22; for example, the width of the sound-absorbing cotton component 2 and the width of the adhesive layer 22 are both equal to 100 mm to allow the sound-absorbing cotton component 2 to be closely associated with the rim 1, thereby increasing stability and improving or avoiding failure situations such as a fall during normal use of the wheel assembly.

[0041] In one embodiment of the present invention, the rim 1 has an outer annular circumferential surface 11, and the sound-absorbing cotton component 2 is disposed on the outer annular circumferential surface 11 and completely covers the outer annular circumferential surface 11. The plurality of sound-absorbing grooves 21 is disposed on an outer lateral wall of the sound-absorbing cotton component 2 opposite the outer annular circumferential surface 11.

[0042] Specifically, the sound-absorbing cotton component 2 completely covers the outer annular circumferential surface 11, which can prevent the uniformity of the wheel assembly from being affected, thereby reducing or eliminating the phenomenon of steering wheel vibration during high-speed driving. The sound-absorbing groove 21 is arranged on the outer side wall of the sound-absorbing cotton component 2 opposite the outer annular circumferential surface 11, which can increase the contact area between the sound-absorbing cotton component 2 and the noise and improve the sound-absorbing effect, thereby enhancing the noise reduction effect.

[0043] In another embodiment of the present invention, the rim 1 is equipped with a tire pressure sensor 12 for measuring tire pressure and temperature. The tire pressure sensor 12 is arranged convexly on one side of the outer annular circumferential surface 11 near an edge of the outer annular circumferential surface 11 in an axial direction. The sound-absorbing cotton component 2 is further provided with a position avoidance groove 23, and the tire pressure sensor 12 is located in the position avoidance groove 23.

[0044] Specifically, the tire pressure sensor 12 is disposed on one side of the outer annular circumferential surface 11 along the axial direction near the edge, so as to allow the sound-absorbing cotton component 2 to completely cover the outer annular circumferential surface 11; namely, the sound-absorbing cotton 2 maintains continuity at the position of the tire pressure sensor 12. In the present invention, by making the position avoidance groove 23 on the sound-absorbing cotton component 2 and by aligning the position avoidance groove 23 with the tire pressure sensor 12, the tire pressure sensor 12 is located in the position avoidance groove 23 to protect the continuity of the sound-absorbing cotton component 2, so that the sound-absorbing cotton component 2 can completely cover the outer annular circumferential surface 11.

[0045] In a specific embodiment, the size of the position avoidance groove 23 can be adjusted according to the size of the tire pressure sensor 12 in order to ensure that the tire pressure sensor 12 is located in the position avoidance groove 23. In some embodiments, the width of the position avoidance groove 23 is between 57 mm and 63 mm, such as 57 mm, 59 mm, 61 mm or 63 mm; and the depth of the position avoidance groove 23 is between 32 mm and 38 mm, such as 32 mm, 34 mm, 36 mm or 38 mm.

[0046] In another embodiment of the present invention, the sound-absorbing groove 21 extends along an axis of the annular external circumferential surface 11 in order to increase the sound-absorbing area of ​​the sound-absorbing cotton component 2.

[0047] In one embodiment of the present invention, after the sound-absorbing cotton component 2 has been provided with the sound-absorbing grooves 21, the rim 1 can be positioned vertically. The sound-absorbing cotton component 2 is bonded while the rim 1 rotates to reduce or avoid pulling on the sound-absorbing cotton component 2, thereby improving the effectiveness and quality of the bonding. The noise-reducing wheel can also be pressed firmly in a synchronized manner to allow the sound-absorbing cotton component 2 and the rim 1 to be bonded more firmly, thereby improving stability. In another embodiment In implementation, rim 1 can also be placed horizontally and glued with sound-absorbing cotton component 2.

[0048] Another aspect of the present invention further relates to a vehicle. The vehicle comprises the noise-reducing wheel 100 above. Specifically, the vehicle comprises the noise-reducing wheel 100 in the above embodiments, so that the vehicle also exhibits the beneficial effects of the noise-reducing wheel 100 above, which will not be repeated here.

[0049] It should be noted that the terms "horizontal" and "vertical" do not indicate that a component must be absolutely horizontal or vertical, but that it is slightly inclined; and the terms "parallel" and "perpendicular" do not indicate that the components are absolutely parallel or perpendicular to each other, but that they may form a certain angular deviation. For example, "horizontal" only means that the direction is more horizontal than "vertical," and does not indicate that the structure must be entirely horizontal, but that it is slightly inclined. Furthermore, the orientation or position relationships indicated by the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside,""Clockwise" and "counterclockwise" are based on orientation or position relationships shown in the accompanying drawings, or on orientation or position relationships of products of the present invention that are commonly placed during use, and are intended to facilitate the description of embodiments of the present invention and to simplify the description only, rather than to indicate or imply that the apparatus or element mentioned must have a particular orientation or be constructed and used in a particular orientation, and therefore should not be interpreted as limitations of the present invention.

[0050] It is understood that the expression "a plurality of" here means at least two, such as two or three, unless otherwise specified. Furthermore, the terms "comprising" and "featuring," and any variants thereof, are intended to cover non-exclusive inclusions. For example, processes, procedures, systems, products, or devices that comprise a series of steps or units are not limited to the listed steps or units, but may also optionally include steps or units not listed, or may also optionally include other steps or units intrinsic to those processes, procedures, products, or devices. The expression "and / or" describes only the relationship of association between associated objects, which indicates three relationships. For example, A and / or B may indicate three situations: A exists alone, A and B exist simultaneously, and B exists alone. Furthermore, the character “ / ” here generally means that the objects associated before and after it are in an “or” relationship.

[0051] The above descriptions are merely implementations of the present invention and do not limit the scope of the patent for the present invention. Any equivalent structures or equivalent flow transformations implemented according to the content of the specification and accompanying drawings of the present invention, or used directly or indirectly in other related technical fields, are also included within the scope of protection of the patent for the present invention.

Claims

Demands

1. Noise-reducing wheel, comprising: a rim (1); and a sound-absorbing cotton component (2), in which the sound-absorbing cotton component (2) is bonded to an external circumferential surface of the rim (1), and an external circumferential surface of the sound-absorbing cotton component (2) is provided with a plurality of sound-absorbing grooves (21).

2. Noise reduction wheel according to claim 1, wherein the depth of each of the plurality of sound-absorbing grooves (21) is less than or equal to half the thickness of the sound-absorbing cotton component (2).

3. Noise reduction wheel according to claim 1 or 2, wherein the width of each of the plurality of sound-absorbing grooves (21) is between 8 mm and 12 mm.

4. Noise reduction wheel according to claim 3, wherein the width of each of the plurality of sound-absorbing grooves (21) and the depth of each of the plurality of sound-absorbing grooves (21) are equal.

5. Noise-reducing wheel according to claim 1 or 2, wherein the plurality of sound-absorbing grooves (21) is uniformly distributed along the center of a circle surrounding the rim (1), and each of the plurality of sound-absorbing grooves (21) extends along an axis of the rim (1).

6. Noise-reducing wheel according to claim 1, wherein the sound-absorbing cotton component (2) further comprises an adhesive layer (22), and the adhesive layer (22) is glued to the outer circumferential surface of the rim (1).

7. Noise-reducing wheel according to claim 1, wherein the rim (1) comprises an outer annular circumferential surface (11); the sound-absorbing cotton component (2) is disposed on the outer annular circumferential surface (11) and completely covers the outer annular circumferential surface (11); and the plurality of sound-absorbing grooves (21) is disposed on an outer side wall of the sound-absorbing cotton component (2) opposite the outer annular circumferential surface (11).

8. Noise reduction wheel according to claim 7, wherein the rim (1) is equipped with a tire pressure sensor (12), and the tire pressure sensor (12) is arranged convexly on one side of the outer annular circumferential surface (11) near an edge of the outer annular circumferential surface (11) in an axial direction; and the sound-absorbing cotton component (2) is further provided with a position avoidance groove (23), and the tire pressure sensor (12) is located in the position avoidance groove (23).

9. Noise reduction wheel according to claim 7, wherein the sound-absorbing groove (21) extends along an axis of the annular outer circumferential surface (11).

10. Vehicle, comprising the noise-reducing wheel (100) according to any one of claims 1 to 9.

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