Noise reduction wheel and vehicle

Abstract

The utility model relates to the technical field of wheels, and particularly discloses a noise reduction wheel and a vehicle. The noise reduction wheel comprises a rim and sound absorption cotton; the sound-absorbing cotton adheres to the peripheral surface of the rim, and a plurality of sound-absorbing grooves are formed in the peripheral surface of the sound-absorbing cotton. Specifically, the sound-absorbing cotton is pasted on the rim, so that friction is generated between the sound-absorbing cotton and the hole wall surfaces of the holes in the sound-absorbing cotton during noise vibration, sound energy is converted into heat energy, the noise reduction effect can be achieved, the pasting process is simplified, the pasting efficiency is improved, and the cost is reduced. Furthermore, sound-absorbing grooves are formed in the peripheral surface of the sound-absorbing cotton, so that the surface area of the sound-absorbing cotton can be increased, the sound-absorbing area of pores is increased, and the noise reduction effect is improved.

Description

Technical Field

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

[0002] With the development of new energy vehicles, the three-electric technology is becoming more mature and advanced. Compared with traditional fuel vehicles, new energy vehicles have no engine, no engine sound and exhaust sound, and no as many drive system parts as cars. Due to the unique low-noise operation characteristics of electric drive, other noises will be amplified when the car is driving at high speed, such as wind noise, road noise, tire noise, etc., which are more obvious. The wheel assembly is the only part of the vehicle that contacts the ground and is the first transmission component of road noise excitation. The wheel assembly includes wheels and tires. After the wheel assembly is installed, there is a cavity between the wheel and the tire. In the subsequent application of the wheel assembly, such as during high-speed driving, the excitation of the tire caused by uneven road surface will cause the noise to be transmitted and reflected in the cavity between the wheel and the tire. When it reaches a certain frequency, the noise reaches a peak, which is called cavity noise, and it is very difficult to solve.

[0003] Currently, cavity noise is reduced by sticking sound-absorbing cotton inside the tire. This principle is used to attenuate noise when it passes through tiny pores. However, this method has problems such as high cost and complicated cotton sticking process. Utility Model Content

[0004] The present application provides a noise reduction wheel and a vehicle, wherein the noise reduction wheel can reduce driving noise, reduce costs, simplify processes, and improve noise reduction efficiency.

[0005] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a noise reduction wheel and a vehicle, wherein the noise reduction wheel comprises a rim and sound-absorbing cotton; the sound-absorbing cotton is adhered to the outer peripheral surface of the rim, and a plurality of sound-absorbing grooves are provided on the outer peripheral surface of the sound-absorbing cotton.

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

[0007] Among them, the width of each sound-absorbing groove is between 8mm and 12mm.

[0008] The width and depth of each sound absorbing groove are equal.

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

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

[0011] The wheel rim includes an annular outer peripheral surface; the sound-absorbing cotton is arranged on the annular outer peripheral surface and completely covers the annular outer peripheral surface; and the sound-absorbing groove is arranged on the outer side wall of the sound-absorbing cotton facing away from the annular outer peripheral surface.

[0012] Among them, a tire pressure sensor is provided on the rim, and the tire pressure sensor is convexly arranged on one side of the annular outer peripheral surface close to the edge along the axial direction; the sound-absorbing cotton is also provided with an avoidance groove, and the tire pressure sensor is located in the avoidance groove.

[0013] The sound absorbing groove extends along the axis of the annular outer peripheral surface.

[0014] The present application also includes a second technical solution, which provides a vehicle including the above-mentioned noise reduction wheel.

[0015] The beneficial effects of the present application are as follows: Different from the prior art, the noise reduction wheel and vehicle provided by the present application include a rim and sound-absorbing cotton; the sound-absorbing cotton is adhered to the outer peripheral surface of the rim, and a plurality of sound-absorbing grooves are provided on the outer peripheral surface of the sound-absorbing cotton. Specifically, by pasting the sound-absorbing cotton on the rim, friction is generated with the pore wall surface of the pores in the sound-absorbing cotton when the noise vibrates, and the sound energy is converted into heat energy, which can play a role in noise reduction, simplify the pasting process, improve pasting efficiency, and reduce costs. Furthermore, the sound-absorbing grooves provided on the outer peripheral surface of the sound-absorbing cotton can increase the surface area of ​​the sound-absorbing cotton, thereby increasing the sound absorption area of ​​the pores and improving the noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0017] Figure 1 is a structural schematic diagram of an embodiment of a noise reduction wheel of the present application;

[0018] Figure 2 is a structural schematic diagram of another embodiment of the noise reduction wheel of the present application;

[0019] Figure 3 1 is a schematic diagram of the aa cross-sectional structure of another embodiment of the noise reduction wheel of the present application;

[0020] Figure 4 is an enlarged structural schematic diagram of a part A of another embodiment of the noise reduction wheel of the present application;

[0021] Figure 5 is a structural schematic diagram of yet another embodiment of the noise reduction wheel of the present application;

[0022] Figure 6It is a schematic diagram of the enlarged structure of a part B of another embodiment of the noise reduction wheel of the present application. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0024] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0025] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0026] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] Please refer to Figure 1-6In one aspect of the present application, a noise reduction wheel 100 is provided, which includes a rim 1 and a sound-absorbing cotton 2. The sound-absorbing cotton 2 is adhered to the outer peripheral surface of the rim 1, and a plurality of sound-absorbing grooves 21 are provided on the outer peripheral surface of the sound-absorbing cotton 2. Specifically, by pasting the sound-absorbing cotton 2 on the rim 1, noise reduction can be achieved, the pasting process can be simplified, the pasting efficiency can be improved, and the cost can be reduced. Furthermore, the sound-absorbing grooves 21 provided on the outer peripheral surface of the sound-absorbing cotton 2 can increase the surface area of ​​the sound-absorbing cotton 2, thereby increasing the sound absorption area of ​​the pores and improving the noise reduction effect.

[0028] It should be noted that the noise reduction principle of the sound-absorbing cotton 2 in the embodiment of the present application is: on the one hand, the sound-absorbing cotton 2 is a porous structure with a large internal pore wall surface. When the noise vibrates, it generates friction with the pore wall surface, and part of the sound energy is converted into heat energy, thereby reducing the reflection and transmission of sound waves, reducing noise, and achieving a noise reduction effect; on the other hand, the sound-absorbing cotton 2 with a porous structure prevents the air flow in the cavity formed between the tire and the wheel, further reducing the cavity resonance noise. In the embodiment of the present application, a sound-absorbing groove 21 is provided on the outer peripheral surface of the sound-absorbing cotton 2, which can increase the area of ​​the pore wall surface, increase the friction generated by the noise with the pore wall surface when the noise vibrates, and convert more sound energy into heat energy, thereby improving the noise reduction efficiency. Furthermore, the opening of the sound-absorbing groove 21 makes the pores on the sound-absorbing cotton 2 more dense, further hindering the flow of air in the cavity, thereby hindering the propagation of noise and improving the noise reduction effect.

[0029] In a specific embodiment, the width of the sound-absorbing cotton 2 can be between 95mm and 105mm, such as 95mm, 100mm, 105mm, etc., which can match rims 1 of different specifications and types, and can completely surround the outer peripheral surface of the rim 1 to increase the number of pores and the contact area with the noise, thereby improving the noise reduction efficiency. At the same time, the sound-absorbing cotton 2 is completely attached to the outer peripheral surface of the rim 1, which can be beneficial to the uniformity of the tire and avoid the risk of high-speed steering wheel shaking. In another specific embodiment, the sound-absorbing cotton 2 is made of polyurethane sponge cut into strips as the sound-absorbing material in the cavity. Due to its light weight and soft texture, it can reduce the adverse effects of the sound-absorbing cotton 2 on other properties of the wheel assembly.

[0030] In one embodiment of the present application, the depth of each sound-absorbing groove 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 groove 21 may also be equal to half the thickness of the sound-absorbing cotton 2. For example, if the thickness of the sound-absorbing cotton 2 is 10 mm, the depth of the sound-absorbing groove 21 is 5 mm. In this way, the sound-absorbing cotton 2 can be prevented from affecting the tensile performance due to the excessive depth of the sound-absorbing groove 21. In a specific embodiment, the thickness of the sound-absorbing cotton 2 is between 10 mm and 18 mm, and the corresponding depth of the sound-absorbing groove 21 is between 5 mm and 9 mm.

[0031] In one embodiment of the present application, the width of each sound-absorbing groove 21 is between 8 mm and 12 mm, such as 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, etc., so as to control the size of the sound-absorbing groove 21, and the number of the sound-absorbing grooves 21 is controlled by comparing the size of the sound-absorbing groove 21 with the size of the outer peripheral surface area of ​​the sound-absorbing cotton 2, thereby reducing the production cost and simplifying the process. It should be noted that the smaller the width of the sound-absorbing groove 21, the more the number of sound-absorbing grooves 21 opened on the sound-absorbing cotton 2, which will increase the cost and complexity of the processing procedures such as die-cutting; the larger the width of the sound-absorbing groove 21, the fewer the number of the corresponding sound-absorbing grooves 21, which will reduce the surface area of ​​the sound-absorbing cotton 2 in contact with the noise, affecting the sound absorption effect.

[0032] Furthermore, the width of each sound-absorbing groove 21 is equal. The purpose is to make the outer peripheral surface of the sound-absorbing cotton 2 more neat and beautiful, and at the same time, it can also improve or avoid the uneven sound absorption area increased by the sound-absorbing groove 21, which causes the noise to be concentrated at one point or a certain area, affecting the sound absorption effect.

[0033] 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 sound absorbing groove 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 steering wheel shaking when driving at high speed due to the uniformity of the wheel assembly being affected.

[0034] In a specific embodiment, six sound absorbing grooves 21 may be provided on the sound absorbing cotton 2, and the six sound absorbing grooves 21 are 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 specific embodiment, four sound absorbing grooves 21 may also be provided. In yet another embodiment, more than six sound absorbing grooves 21 may also be provided.

[0035] In one embodiment of the present application, the sound-absorbing cotton 2 further includes an adhesive layer 22 , and the adhesive layer 22 is bonded to the outer peripheral surface of the rim 1 .

[0036] Specifically, one side of the adhesive layer 22 is bonded to the outer peripheral surface of the rim 1, and the other side is connected to the inner peripheral surface of the sound-absorbing cotton 2. The sound-absorbing cotton 2 is attached to the outer peripheral surface of the rim 1 through the adhesive layer 22. The width of the adhesive layer 22 can be between 95 mm and 105 mm, such as 95 mm, 100 mm, 105 mm, etc., to adapt to different widths of the sound-absorbing cotton 2. In a specific embodiment, the sound-absorbing cotton 2 can completely cover the adhesive layer 22, such as the width of the sound-absorbing cotton 2 is equal to the width of the adhesive layer 22, both of which are 100 mm, so that the sound-absorbing cotton 2 is tightly combined with the rim 1, the stability is improved, and the failure of the sound-absorbing cotton 2 such as falling off during the normal use of the wheel assembly is improved or avoided.

[0037] In one embodiment of the present application, the rim 1 includes an annular outer peripheral surface 11, and 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 groove 21 is arranged on the outer side wall of the sound-absorbing cotton 2 facing away from the annular outer peripheral surface 11.

[0038] Specifically, the sound-absorbing cotton 2 completely covers the annular outer peripheral surface 11, which can avoid affecting the uniformity of the wheel assembly, thereby reducing or avoiding the steering wheel shaking phenomenon when driving at high speed. The sound-absorbing groove 21 is set on the outer side wall of the sound-absorbing cotton 2 facing away from the annular outer peripheral surface 11, which can increase the contact area between the sound-absorbing cotton 2 and the noise, improve the sound absorption effect, and then improve the noise reduction effect.

[0039] In another embodiment of the present application, a tire pressure sensor 12 is provided on the rim 1 for measuring tire pressure and temperature. The tire pressure sensor 12 is convexly arranged on one side of the annular outer peripheral surface 11 close to the edge along the axial direction. The sound-absorbing cotton 2 is also provided with an avoidance groove 23, and the tire pressure sensor 12 is located in the avoidance groove 23.

[0040] Specifically, since the tire pressure sensor 12 is arranged on one side of the annular outer peripheral surface 11 close to the edge in the axial direction, in order to enable the sound-absorbing cotton 2 to completely cover the annular outer peripheral surface 11, that is, to maintain continuity at the position of the tire pressure sensor 12, the present application provides a avoidance groove 23 on the sound-absorbing cotton 2, aligns the avoidance groove 23 with the tire pressure sensor 12, and makes the tire pressure sensor 12 located in the avoidance groove 23, thereby protecting the continuity of the sound-absorbing cotton 2 and enabling the sound-absorbing cotton 2 to completely cover the annular outer peripheral surface 11.

[0041] In a specific embodiment, the size of the avoidance 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 avoidance groove 23. Further, the width of the avoidance groove 23 can be between 57 mm and 63 mm, such as 57 mm, 59 mm, 61 mm, 63 mm, etc.; the depth can be between 32 mm and 38 mm, such as 32 mm, 34 mm, 36 mm, 38 mm, etc.

[0042] In another embodiment of the present application, the sound absorbing groove 21 extends 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.

[0043] In one embodiment of the present application, after the sound-absorbing cotton 2 is provided with the sound-absorbing groove 21, the rim 1 can be placed vertically, and the sound-absorbing cotton 2 can be pasted while the rim 1 is rotating, so as to reduce or avoid pulling the sound-absorbing cotton 2, improve pasting efficiency and pasting quality, and synchronously press the equipment to make the sound-absorbing cotton 2 and the rim 1 fit more closely, thereby improving stability. In another embodiment, the rim 1 can also be placed horizontally to paste the sound-absorbing cotton 2.

[0044] On the other hand, the present application further provides a vehicle, which includes the above-mentioned noise reduction wheel 100. Specifically, since the vehicle includes the noise reduction wheel 100 described in the above embodiment, it also has the beneficial effects of the above-mentioned noise reduction wheel 100, which will not be repeated here.

[0045] It should be noted that the terms "horizontal", "vertical" and the like do not mean that the components are absolutely horizontal or vertical, but can be slightly tilted; the terms "parallel", "vertical" and the like do not mean that the components are absolutely parallel or vertical, but can form a certain angle deviation. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted. In addition, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the present application is usually placed when used, which is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply 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 to the present application.

[0046] It is to be understood that the meaning of "plurality" herein is at least two, such as two, three, etc., unless there is a special limitation. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices. The term "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein generally indicates that the associated objects before and after are in an "or" relationship.

[0047] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A noise reduction wheel, characterized in that: include: A rim (1), the rim (1) comprising an annular outer peripheral surface (11); Sound-absorbing cotton (2), the sound-absorbing cotton (2) is arranged on the annular outer peripheral surface (11) and completely covers the annular outer peripheral surface (11); the outer peripheral surface of the sound-absorbing cotton (2) is provided with a plurality of sound-absorbing grooves (21); The wheel rim (1) is provided with a tire pressure sensor (12), and the tire pressure sensor (12) is convexly arranged on one side of the annular outer peripheral surface (11) close to the edge along the axial direction; The sound-absorbing cotton (2) is also provided with a avoidance groove (23), and the tire pressure sensor (12) is located in the avoidance groove (23).

2. The noise reduction wheel according to claim 1, characterized in 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. The noise reduction wheel according to claim 1 or 2, characterized in that: The width of each of the sound absorbing grooves (21) is between 8 mm and 12 mm.

4. The noise reduction wheel according to claim 3, characterized in that: The width and depth of each of the sound absorbing grooves (21) are equal.

5. The noise reduction wheel according to claim 1 or 2, characterized in that: The sound absorbing grooves (21) are evenly distributed along the center of a circle surrounding the rim (1), and each of the sound absorbing grooves (21) extends along the axis of the rim (1).

6. The noise reduction wheel according to claim 1, characterized in that: The sound-absorbing cotton (2) further comprises an adhesive layer (22), wherein the adhesive layer (22) is bonded to the outer peripheral surface of the rim (1).

7. The noise reduction wheel according to claim 1, characterized in that: The sound absorbing groove (21) is arranged on the outer side wall of the sound absorbing cotton (2) facing away from the annular outer peripheral surface (11).

8. The noise reduction wheel according to claim 7, characterized in that: The sound absorbing groove (21) extends along the axis of the annular outer peripheral surface (11).

9. A vehicle, characterized in that: The noise reduction wheel (100) comprises the noise reduction wheel (100) as claimed in any one of claims 1 to 8.

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