Noise-reducing wheel and vehicle

Abstract

Noise-reducing wheel, characterized in that it includes: a rim (1); a sound-absorbing cotton (2), wherein the sound-absorbing cotton (2) is adhered to an outer circumferential surface of the rim (1), and wherein a number of sound-absorbing grooves (21) are provided on the outer circumferential surface of the sound-absorbing cotton (2).

Description

TECHNICAL FIELD

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

[0002] With the development of electric vehicles, three-electric technology has become increasingly mature and advanced. Compared to conventional fuel vehicles, electric vehicles do not have an engine, engine noise, or exhaust noise, and do not have as many drive system components as fuel vehicles. The unique smoothness of electric drives means that other noises such as wind noise, road noise, tire noise, etc. are amplified at high speeds. The wheel assembly, which is designed as the only component through which contact is established between the vehicle and the ground, represents the first transmission component for driving noise excitation. The wheel assembly comprises wheels and tires. After the wheel assembly is installed, a cavity is created between the wheel and the tire. The noise is generated during subsequent use of the wheel assembly, such asDuring high-speed driving, the noise is transmitted and reflected in the cavity between the wheel and tire. When a certain frequency is reached, the noise reaches its peak, known as cavity noise, and is very difficult to resolve.

[0003] Currently, cavity noise is reduced by gluing sound-absorbing cotton into the tire. This is achieved by dampening the sound as it passes through the small pores. However, this method is expensive and involves a complicated cotton-bonding process. SUMMARY OF THE UTILITY MODEL

[0004] This application provides a noise-reducing wheel and a vehicle. The noise-reducing wheel can reduce driving noise and costs, simplify processes, and improve the efficiency of noise reduction.

[0005] In order to solve the above-mentioned technical problems, a technical solution of this application is to provide a noise reducing wheel and a vehicle, the noise reducing wheel comprising a rim and a sound absorbing cotton adhered to an outer peripheral surface of the rim and the outer peripheral surface of which is provided with a number of sound absorbing grooves.

[0006] The depth of each of the sound-absorbing grooves is less than or equal to half the thickness of the sound-absorbing cotton.

[0007] The width of each of the sound-absorbing grooves is between 8 mm and 12 mm.

[0008] The width and depth of each of the sound-absorbing grooves are the same.

[0009] The sound-absorbing grooves are evenly distributed along the center of the circle surrounding the rim, and each of the sound-absorbing grooves extends along the axis of the rim.

[0010] The sound-absorbing cotton further comprises an adhesive layer, wherein the adhesive layer is adhered to the outer peripheral surface of the rim.

[0011] The rim comprises an annular outer circumferential surface; wherein the sound-absorbing cotton is arranged on the annular outer peripheral surface and completely covers the annular outer peripheral surface; wherein the sound-absorbing grooves are provided on an outer side wall of the sound-absorbing cotton facing away from the annular outer peripheral surface.

[0012] In this case, a tire pressure sensor is provided on the rim, wherein the tire pressure sensor is provided protruding on one side of the annular outer peripheral surface which is located close to the edge along the axial direction, wherein the sound-absorbing cotton is further provided with an escape groove in which the tire pressure sensor is located.

[0013] The sound-absorbing grooves run along the axis of the annular outer peripheral surface.

[0014] This application also covers a second technical solution providing a vehicle including the above-mentioned noise-reducing wheel.

[0015] The advantages of this application are: Unlike existing technology, this application provides a noise-reducing wheel and a vehicle, the noise-reducing wheel comprising a rim and a sound-absorbing cotton adhered to the outer peripheral surface of the rim, the outer peripheral surface of which is provided with a number of sound-absorbing grooves. Specifically, the adhesion of the sound-absorbing cotton to the rim generates friction generated by the interaction of vibration noise with the wall surfaces of the pores in the sound-absorbing cotton, converting sound energy into heat energy, which can reduce noise and simplify the adhesion process, thus improving adhesion efficiency and reducing costs.In addition, by providing the sound-absorbing grooves on the outer peripheral surface of the sound-absorbing cotton, the area of ​​the sound-absorbing cotton can be increased, thereby increasing the sound-absorbing area of ​​the pores and improving the noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] To more clearly describe the technical solutions of the embodiments of this application, the accompanying drawings necessary for describing the embodiments are briefly presented below. Obviously, the accompanying drawings in the following description show only some embodiments of this application, and those skilled in the art can still derive other drawings from these accompanying drawings without inventive work. It shows: Fig. 1 is a schematic structural diagram of an embodiment of the noise reducing wheel of the present application; Fig. 2 is a schematic structural diagram of another embodiment of the noise reducing wheel of the present application; Fig. 3 is a schematic structural diagram of another embodiment of the noise reducing wheel of the present application in a section taken along line aa; Fig. 4 is an enlarged schematic structural diagram of part A of another embodiment of the noise reducing wheel of the present application; Fig. 5 is a schematic structural diagram of still another embodiment of the noise reducing wheel of the present application; Fig. 6 is an enlarged schematic structural diagram of part B of still another embodiment of the noise reducing wheel of the present application. DESCRIPTION OF THE EMBODIMENTS

[0017] In order to make the above-mentioned objects, features, and advantages of the present application more obvious and understandable, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application, not limitative of the present application. Furthermore, it should be noted that, for the sake of simplicity of description, only some structures related to the present application are shown in the drawings, but not all structures. Based on the embodiments in this application, all other embodiments that one of ordinary skill in the art can obtain without inventive work are within the scope of this application.

[0018] As used herein, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present disclosure. The term appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it refer to an independent or alternative embodiment that is mutually exclusive with other embodiments. It will be understood by those skilled in the art, both expressly and implicitly, that an embodiment described herein may be combined with other embodiments.

[0019] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply a relative importance or the number of the specified technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly encompass one or more of the described features. In the description of this application, "plural" means two or more than two, unless expressly and specifically stated otherwise.

[0020] In the description of the present application, it should be understood that, unless otherwise stated or limited, the terms "assemble," "connect," and "connect" are used in the broadest sense. For example, they can represent a fixed connection, a detachable connection, or an integral connection. They can also represent mechanical or electrical connections, or they can communicate with each other, or they can represent direct connections, or they can be indirect connections established through the use of an intermediate medium, or they can represent an internal communication between two elements, or an interaction between two elements. A person skilled in the art can understand the specific meanings of the terms in the utility model depending on a particular situation.

[0021] Reference to the Fig. 1 to Fig.6 provides, in one aspect of this application, a noise-reducing wheel 100. The noise-reducing wheel 100 includes a rim 1 and a sound-absorbing cotton 2. The sound-absorbing cotton 2 is adhered to an outer peripheral surface of the rim 1, and a number of sound-absorbing grooves 21 are provided on the outer peripheral surface of the sound-absorbing cotton 2. In particular, by adhering the sound-absorbing cotton 2 to the rim 1, noise can be reduced, the adhesion process can be simplified, the adhesion efficiency can be improved, and costs can be reduced. Furthermore, by providing the sound-absorbing grooves 21 on the outer peripheral surface of the sound-absorbing cotton 2, the area of ​​the sound-absorbing cotton 2 can be increased, thereby increasing the sound-absorbing area of ​​the pores and improving the noise reduction effect.

[0022] It should be noted that the noise reduction principle of the sound-absorbing cotton 2 in the embodiment of the present application is as follows: On the one hand, the sound-absorbing cotton 2 constitutes a porous structure with a large internal pore wall. During the vibration of the sound, friction is generated with the pore wall, and part of the sound energy is converted into heat energy, thereby reducing the reflection and transmission of sound waves and thus reducing the noise, thus achieving the noise reduction effect. On the other hand, the sound-absorbing cotton 2 with a porous structure prevents air flow in the cavity formed between the tire and the wheel, thereby further reducing cavity resonance noise.In the embodiment of the present application, sound-absorbing grooves 21 are provided on the outer peripheral surface of the sound-absorbing cotton 2. These grooves can increase the pore wall area and increase the friction between the sound and the pore wall during vibration of the sound, thereby converting more sound energy into heat energy, thereby improving the noise reduction effectiveness. Furthermore, the provision of the sound-absorbing grooves 21 makes the pores of the sound-absorbing cotton 2 denser, further obstructing the airflow in the cavity, thereby hindering sound propagation and improving the noise reduction effect.

[0023] In a specific embodiment, the width of the sound-absorbing cotton 2 can be between 95 mm and 105 mm, for example, 95 mm, 100 mm, 105 mm, etc., and can be adapted to different specifications and different types of rims 1, and the outer peripheral surface of the rim 1 can be completely enclosed, so that the number of pores and the contact area are increased and the noise reduction effect is improved. At the same time, the sound-absorbing cotton 2 is completely adhered to the outer peripheral surface of the rim 1 for a full circle, which can contribute to the uniform performance of the tire and avoid the danger of steering wheel shaking at high speed. In another specific embodiment, the sound-absorbing cotton 2 made of polyurethane sponge is cut into strips and serves as the sound-absorbing material in the cavity.This material, due to its properties such as light weight and soft texture, can reduce the negative impact of the sound-absorbing cotton 2 on the other properties of the wheel assembly.

[0024] In one embodiment of the present application, the depth of each of the sound-absorbing grooves 21 may be less than half the thickness of the sound-absorbing cotton 2. In another embodiment of the present application, the depth of the sound-absorbing grooves 21 may also be equal to half the thickness of the sound-absorbing cotton 2. For example, the thickness of the sound-absorbing cotton 2 is 10 mm, while the depth of the sound-absorbing grooves 21 is 5 mm. In this way, the sound-absorbing cotton 2 can be prevented from having its tensile properties impaired by the sound-absorbing grooves 21 having an excessive depth. In a specific embodiment, the thickness of the sound-absorbing cotton 2 is between 10 mm and 18 mm, and the depth of the corresponding sound-absorbing grooves 21 is between 5 mm and 9 mm.

[0025] In one embodiment of the present application, the width of each of the sound-absorbing grooves 21 is between 8 mm and 12 mm, for example, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, etc., to limit the size of the sound-absorbing grooves 21. Production costs are reduced and the process is simplified by comparing the size of the sound-absorbing grooves 21 with the area of ​​the outer peripheral surface of the sound-absorbing cotton 2 and thus determining the number of sound-absorbing grooves 21. It should be noted that the smaller the width of the sound-absorbing grooves 21, the larger the number of sound-absorbing grooves 21 that are correspondingly provided on the sound-absorbing cotton 2, which increases the cost and complexity of processing operations such as punching.The larger the width of the sound-absorbing grooves 21, the smaller the number of corresponding sound-absorbing grooves 21, which reduces the surface area of ​​the sound-absorbing cotton 2 that comes into contact with noise and impairs the sound-absorbing effect.

[0026] Furthermore, the width of the sound-absorbing grooves 21 is the same. The purpose is to make the outer peripheral surface of the sound-absorbing cotton 2 more tidy, thus improving its appearance. At the same time, it can improve or prevent the sound propagation from being concentrated in a single point or specific area, which is caused by the unevenness of the sound-absorbing surface increased by the provision of the sound-absorbing grooves 21.

[0027] In one embodiment of the present application, the sound-absorbing grooves 21 are evenly distributed along the center of the circle surrounding the rim 1, and each of the sound-absorbing grooves 21 extends along the axis of the rim 1 to improve the uniformity of the surface of the sound-absorbing cotton 2, thereby improving or avoiding the risk of impairing the uniformity of the wheel assembly and thus shaking the steering wheel when driving at high speed.

[0028] In a specific embodiment, six sound-absorbing grooves 21 may be provided on the sound-absorbing cotton 2, with the six sound-absorbing grooves 21 evenly distributed along the center of the circle surrounding the rim 1 to improve the uniformity of the outer peripheral surface of the sound-absorbing cotton 2. In another embodiment, four sound-absorbing grooves 21 may also be provided. In yet another embodiment, more than six sound-absorbing grooves 21 may be provided.

[0029] In one embodiment of the present application, the sound-absorbing cotton 2 also includes an adhesive layer 22, and the adhesive layer 22 is bonded to the outer peripheral surface of the rim 1.

[0030] Specifically, one surface of the adhesive layer 22 is bonded to the outer peripheral surface of the rim 1, and the other surface thereof is bonded to the inner peripheral surface of the sound-absorbing cotton 2, wherein the sound-absorbing cotton 2 is bonded to the outer peripheral surface of the rim 1 by the adhesive layer 22. The width of the adhesive layer 22 can be between 95 mm and 105 mm, e.g., 95 mm, 100 mm, 105 mm, etc., to accommodate sound-absorbing cotton 2 of different widths.In a specific embodiment, the sound-absorbing cotton 2 may completely cover the adhesive layer 22, for example, the width of the sound-absorbing cotton 2 is equal to the width of the adhesive layer 22 and is 100 mm each, so that the sound-absorbing cotton 2 and the rim 1 are closely connected to each other to improve stability and improve or avoid failures such as falling off during the intended use of the wheel assembly.

[0031] In one embodiment of the present application, the rim 1 has an annular outer peripheral surface 11, wherein the sound-absorbing cotton 2 is arranged on the annular outer peripheral surface 11 and completely covers the annular outer peripheral surface 11. The sound-absorbing grooves 21 are provided on an outer side wall of the sound-absorbing cotton 2 facing away from the annular outer peripheral surface 11.

[0032] In particular, the sound-absorbing cotton 2 completely covers the annular outer peripheral surface 11, thereby preventing any deterioration in the uniformity of the wheel alignment and thus reducing or eliminating steering wheel shake during high-speed driving. Sound-absorbing grooves 21 are provided on the outer side wall of the sound-absorbing cotton 2 facing away from the annular outer peripheral surface 11, thereby increasing the contact area of ​​the sound-absorbing cotton 2 with the noise and improving the sound absorption effect and thus the noise reduction effect.

[0033] In another embodiment of the present application, a tire pressure sensor 12 for measuring tire pressure and temperature is provided on the rim 1. The tire pressure sensor 12 is provided protrudingly on one side of the annular outer peripheral surface 11, which is located close to the edge along the axial direction. The sound-absorbing cotton 2 is further provided with an escape groove 23, with the tire pressure sensor 12 located in the escape groove 23.

[0034] In particular, since the tire pressure sensor 12 is provided on a side of the annular outer peripheral surface 11 that is close to the edge along the axial direction, the sound-absorbing cotton 2 can completely cover the annular outer peripheral surface 11, that is, the continuity of the position of the tire pressure sensor 12 is maintained. In this application, by providing the escape groove 23 on the sound-absorbing cotton 2, the escape groove 23 is aligned with the tire pressure sensor 12, so that the tire pressure sensor 12 is located in the escape groove 23. This protects the continuity of the sound-absorbing cotton 2, so that the sound-absorbing cotton 2 can completely cover the annular outer peripheral surface 11.

[0035] In a specific embodiment, the size of the escape groove 23 can be adjusted according to the size of the tire pressure sensor 12 to ensure that the tire pressure sensor 12 is located in the escape groove 23. Furthermore, the width of the escape groove 23 can be between 57 mm and 63 mm, for example, 57 mm, 59 mm, 61 mm, 63 mm, etc., and the depth can be between 32 mm and 38 mm, for example, 32 mm, 34 mm, 36 mm, 38 mm, etc.

[0036] In another embodiment of the present application, the sound-absorbing grooves 21 extend along the axis of the annular outer peripheral surface 11 to achieve the effect of increasing the sound-absorbing area of ​​the sound-absorbing cotton 2.

[0037] In one embodiment of the present application, the rim 1 can be arranged upright after the sound-absorbing cotton 2 with the sound-absorbing grooves 21 is provided. The sound-absorbing cotton 2 is bonded while the rim 1 rotates to reduce or eliminate tension on the sound-absorbing cotton, thereby improving bonding efficiency and quality. The pressing devices can be synchronized to bond the sound-absorbing cotton 2 and the rim 1 more tightly, thus improving stability. In another embodiment, the rim 1 can also be placed horizontally and bonded to the sound-absorbing cotton 2.

[0038] In another aspect, the present application also provides a vehicle including the above-mentioned noise-reducing wheel 100. In particular, since the vehicle includes the noise-reducing wheel 100 described in the above embodiment, it also exhibits the advantageous effects of the noise-reducing wheel 100, which will not be described repeatedly here.

[0039] It should be noted that the terms "horizontal" and "vertical," etc., do not mean that the component must necessarily be arranged horizontally or vertically, but may be slightly inclined, and that the terms "parallel," "perpendicular," etc., do not mean that the component must necessarily be arranged parallel or perpendicular, but may form a certain angular deviation. For example, "horizontal" simply means that the direction in which the component is directed is more horizontal than "vertical." It does not mean that these structures must necessarily be completely horizontal, but may be slightly inclined. Furthermore, the dimensions expressed by terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," etc.The orientation or positional relationships indicated are the orientation or positional relationships shown in the figures or the orientation or positional relationships in which the product according to the present application is typically placed during use. These terms are intended only to facilitate the description of the embodiments of the present application and to simplify the description. However, they are not intended to indicate or imply that the mentioned devices or elements have a particular orientation or must be constructed or operated in that particular orientation. They should therefore not be construed as limiting the present disclosure.

[0040] It is to be understood that the meaning of "plurality" in this application is at least two, for example, two, three, etc., unless expressly stated otherwise. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, device, or apparatus comprising a series of steps or units is not limited to the listed steps or units, but may optionally include other steps or units not listed; alternatively, other steps or units inherent in the process, method, product, or apparatus may be included. Furthermore, the term "and / or" describes only one related relationship to the description of associated objects and represents that three relationships may exist.For example, A and / or B can represent the following three cases: only A exists, both A and B exist, and only B exists. Furthermore, the " / " symbol in this description usually indicates an "or" relationship between the related objects.

[0041] The above descriptions represent merely exemplary embodiments of this application and are not intended to limit the scope of this application. Any equivalent structure or process modification made using the contents of the application and the accompanying drawings of this application, or applied directly or indirectly to other related technical fields, falls within the scope of this application.

Claims

[1] Noise-reducing wheel, characterized by that it includes: a rim (1); a sound-absorbing cotton (2), wherein the sound-absorbing cotton (2) is adhered to an outer peripheral surface of the rim (1), and wherein a number of sound-absorbing grooves (21) are provided on the outer peripheral surface of the sound-absorbing cotton (2). [2] Noise-reducing wheel according to claim 1, characterized by that the depth of each of the sound-absorbing grooves (21) is less than or equal to half the thickness of the sound-absorbing cotton (2). [3] Noise-reducing wheel according to claim 1 or 2, characterized by that the width of each of the sound-absorbing grooves (21) is between 8 mm and 12 mm. [4] Noise-reducing wheel according to claim 3, characterized by that the width and depth of each of the sound-absorbing grooves (21) are the same. [5] Noise-reducing wheel according to claim 1 or 2, characterized by that the sound-absorbing grooves (21) are evenly distributed along the center of the circle surrounding the rim (1) and each of the sound-absorbing grooves (21) extends along the axis of the rim (1). [6] Noise-reducing wheel according to claim 1, characterized by that the sound-absorbing cotton (2) further comprises an adhesive layer (22), wherein the adhesive layer (22) is adhered to the outer peripheral surface of the rim (1). [7] Noise-reducing wheel according to claim 1, characterized by that the rim (1) comprises an annular outer peripheral surface (11); wherein the sound-absorbing cotton (2) is arranged on the annular outer peripheral surface (11) and completely covers the annular outer peripheral surface (11); wherein the sound-absorbing grooves (21) are provided on an outer side wall of the sound-absorbing cotton (2) facing away from the annular outer peripheral surface (11). [8] Noise-reducing wheel according to claim 7, characterized by that a tire pressure sensor (12) is provided on the rim (1), wherein the tire pressure sensor (12) is provided protrudingly on a side of the annular outer peripheral surface (11) which is close to the edge along the axial direction, wherein the sound-absorbing cotton (2) is further provided with an escape groove (23) in which the tire pressure sensor (12) is located. [9] Noise-reducing wheel according to claim 7, characterized by that the sound-absorbing grooves (21) run along the axis of the annular outer peripheral surface (11). [10] Vehicle, characterized by that it comprises the noise-reducing wheel (100) according to one of claims 1 to 9.

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