Wheel rims, wheel rim manufacturing methods, and vehicles

Abstract

This application relates to the field of vehicle technology, disclosing a wheel rim, a method for manufacturing the wheel rim, and a vehicle. The wheel rim includes a wheel rim body and a noise reduction component. The noise reduction component is continuously wound in a spiral shape around the wheel rim body in the circumferential direction and is at least partially connected to the outer peripheral wall of the wheel rim body. The number of turns of the noise reduction component on the outer peripheral wall is i, where i is greater than or equal to 3. The noise reduction component is used to absorb at least a portion of the noise in the environment in which the wheel rim body is located and to absorb at least a portion of the vibration generated by the wheel rim body. The wheel rim, the method for manufacturing the wheel rim, and the vehicle provided in this application have a low risk and probability of the noise reduction component on the wheel rim falling off.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a wheel rim, a method for manufacturing the wheel rim, and a vehicle. Background Technology

[0002] Due to the rapid development of the automotive industry, people have increasingly higher requirements for the comfort of car rides. The driving noise generated by car wheels has always been a difficult problem to solve. For a long time, people have tried using tire materials with moderate hardness and tread patterns to reduce noise, but they have not been able to completely solve the driving noise problem. Therefore, in order to better reduce wheel noise, many car companies will put a layer of sound-absorbing sponge on the outer surface of the wheel rim to achieve noise reduction.

[0003] However, with the current design, the sound-absorbing foam on the wheel rim is prone to falling off. Summary of the Invention

[0004] In view of this, this application provides a wheel rim, a method for manufacturing the wheel rim, and a vehicle, with a low risk of noise reduction components falling off.

[0005] Specifically, this application includes the following technical solutions.

[0006] The first aspect of this application provides a wheel rim, the wheel rim including a wheel rim body and a noise reduction component;

[0007] The noise reduction component is continuously wound in a spiral shape around the rim body in the circumferential direction and is at least partially connected to the outer peripheral wall of the rim body. The number of turns of the noise reduction component on the outer peripheral wall is i, where i is greater than or equal to 3.

[0008] The noise reduction component is used to absorb at least part of the noise in the environment where the rim body is located, and to absorb at least part of the vibration generated by the rim body.

[0009] Optionally, the rim includes a first functional element connected between the noise reduction element and the rim body to absorb at least a portion of the vibration transmitted from the rim body to the noise reduction element.

[0010] Optionally, the multiple turns of the noise reduction element are spirally wound around the outer peripheral wall, and there is a gap between any one turn of the noise reduction element and the adjacent turn of the noise reduction element;

[0011] The rim also includes a second functional component located within the gap and connected to two adjacent noise-reducing components, respectively, and filling the gap. The second functional component is used to absorb at least part of the vibration transmitted from the rim body to the noise-reducing components.

[0012] Optionally, the first functional component is butyl rubber; and / or,

[0013] The second functional component is butyl rubber.

[0014] Optionally, from the first rim to the i-th rim, the noise reduction components are arranged sequentially along the axial direction of the rim body, and the noise reduction components of adjacent rims are partially stacked.

[0015] Optionally, the rim further includes a first fixing member that fixes a first end of the noise reduction member to the outer peripheral wall; and / or,

[0016] The rim also includes a second fixing member, which fixes the second end of the noise reduction member to the outer peripheral wall, and the first end and the second end are opposite ends of the noise reduction member along the length direction.

[0017] Optionally, the noise reduction component includes a first end and a second end opposite each other along the length direction, and the noise reduction component is disposed around the rim body from the first end to the second end;

[0018] At least a portion of the first end extends between the next ring of the noise-reducing element and the outer peripheral wall; and / or,

[0019] At least a portion of the second end extends between the upper ring of the noise reduction element and the outer peripheral wall.

[0020] Optionally, the noise reduction component includes one or a combination of at least two of polyurethane foam, expanded plastic, and polyurethane foam.

[0021] Optionally, the width of the noise reduction component is 10-30mm.

[0022] A second aspect of this application provides a method for manufacturing a wheel rim, applicable to the aforementioned wheel rim, the method comprising:

[0023] The outer peripheral wall of the rim body is cleaned, and the cleaned rim body is placed on a worktable that allows it to rotate around an axis.

[0024] The noise reduction component is connected to one side of the valve or controller on the rim body, and the noise reduction component is spirally wound around the rim body according to the set pitch;

[0025] The noise reduction component is compacted.

[0026] A third aspect of this application provides a vehicle that includes the aforementioned wheel rim.

[0027] The beneficial effects of the technical solutions provided in this application include at least the following:

[0028] The wheel rim, the manufacturing method of the wheel rim, and the vehicle provided in this application embodiment have a noise reduction component wrapped around the outside of the wheel rim body. The noise reduction component can absorb at least part of the noise transmitted from the wheel rim body to the noise reduction component, thereby reducing the driving noise generated by the tires during vehicle operation, and thus improving the NVH performance of the whole vehicle, so that users have a better riding experience. At the same time, in the wheel rim provided in this application, the noise reduction component is wrapped around the circumference of the wheel rim body multiple times. Compared with the wheel rim with a layer of sound insulation cotton attached in the related technology, the structural force of the noise reduction component itself can offset part of the centrifugal force during the rotation of the wheel rim, which can reduce the risk and probability of the noise reduction component falling off and ensure the connection stability between the noise reduction component and the wheel rim body.

[0029] In addition, in the related technologies, the sponge in the rim must have at least one gap to avoid the air valve, which reduces the overall volume of the sponge and the noise reduction effect. However, the noise reduction component in this application is spirally wrapped around the rim body multiple times. It can start from the position near the air valve and can wrap the outer wall of the rim body to the maximum extent, further improving the noise reduction effect. Attached Figure Description

[0030] 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.

[0031] Figure 1 This paper shows a first structural schematic diagram of a wheel rim provided in an embodiment of this application;

[0032] Figure 2 This invention provides a schematic diagram of the second structure of a wheel rim according to an embodiment of the present application.

[0033] Figure 3 A cross-sectional view of a first type of wheel rim provided in an embodiment of this application is shown;

[0034] Figure 4 A cross-sectional view of a second type of wheel rim provided in an embodiment of this application is shown.

[0035] Figure label:

[0036] 1. Wheel rim body; 11. Outer peripheral wall;

[0037] 2. Noise reduction component; 21. First end; 22. Second end; 23. Gap;

[0038] 3. First functional component;

[0039] 4. Second functional component.

[0040] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0041] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. To make the technical solutions and advantages of this application clearer, the following will be described with reference to the accompanying drawings. Figure 1-4 The rim, its manufacturing method, and the vehicle are described in detail.

[0042] Due to the rapid development of the automotive industry, people have increasingly higher requirements for the comfort of car rides. The driving noise generated by car wheels has always been a difficult problem to solve. For a long time, people have tried using tire materials with moderate hardness and tread patterns to reduce noise, but they have not been able to completely solve the driving noise problem. Therefore, in order to better reduce wheel noise, many car companies will put a layer of sound-absorbing sponge on the outer surface of the wheel rim to achieve noise reduction.

[0043] However, current solutions for laying a layer of sound-absorbing foam typically involve bonding the foam to the wheel rim. But when the vehicle is in motion, the wheel rim is constantly rotating at high speed, and the sound-absorbing foam on the rim is subject to centrifugal force, making it prone to falling off.

[0044] This application provides a wheel rim, such as Figure 1 and Figure 2 As shown, the rim may include a rim body 1 and a noise reduction component 2; the noise reduction component 2 is continuously wound in a spiral shape around the rim body 1 in the circumferential direction and is at least partially connected to the outer peripheral wall 11 of the rim body 1, and the number of turns of the noise reduction component 2 on the outer peripheral wall 11 is i, where i is greater than or equal to 3; wherein, the noise reduction component 2 is used to absorb at least part of the noise in the environment where the rim body 1 is located and to absorb at least part of the vibration generated by the rim body 1.

[0045] In the wheel rim provided in this application embodiment, a noise reduction component 2 is wound around the outside of the wheel rim body 1. The noise reduction component 2 can absorb at least part of the noise transmitted from the wheel rim body 1 to the noise reduction component 2, thereby reducing the driving noise generated by the tires during vehicle operation, and thus improving the NVH performance of the whole vehicle, so that users have a better riding experience. At the same time, in the wheel rim provided in this application, the noise reduction component 2 is wound around the circumference of the wheel rim body 1 multiple times. Compared with the wheel rim with a layer of sound insulation cotton attached in the related technology, the structural force of the noise reduction component 2 during the rotation of the wheel rim can offset part of the centrifugal force, which can reduce the risk and probability of the noise reduction component 2 falling off, and ensure the connection stability between the noise reduction component 2 and the wheel rim body 1.

[0046] In addition, in the related technologies, the rim sponge must have at least one gap 23 to avoid the air valve, which leads to a decrease in the total volume of the sponge and a decrease in the noise reduction effect. However, the noise reduction component 2 in this application is spirally wound around the rim body 1 multiple times. It can start from the position near the air valve and can wrap the outer peripheral wall 11 of the rim body 1 to the maximum extent, which further improves the noise reduction effect.

[0047] It should be noted that the noise reduction component 2 provided in this application embodiment has the following noise reduction functions: on the one hand, through its own elastic properties, it can absorb part of the vibration on the rim body 1 when the rim body 1 rotates, thereby reducing the vibration noise transmitted to the vehicle interior; on the other hand, through its own special structure, it can reflect the noise in the environment back and forth inside, weakening the noise energy, thereby achieving the noise reduction effect.

[0048] In some embodiments, the noise reduction element 2 can be an elastic member with a loose porous structure.

[0049] Optionally, the noise reduction component 2 includes one or a combination of at least two of polyurethane foam, expanded plastic, and polyurethane foam. Those skilled in the art can select and adjust the components according to actual needs, manufacturing difficulty, manufacturing cost, and other factors.

[0050] Optionally, the width of the noise reduction component 2 is 10 to 30 mm.

[0051] In related technologies, to improve noise reduction, the width and length of the sound-absorbing sponge need to be compatible with the gears of the wheel rim. However, different types of wheel rims have different specifications and dimensions. Therefore, to adapt to various types of wheel rims, sound-absorbing sponges of various specifications need to be produced. This leads to inefficiency and increased inventory in the production process.

[0052] Therefore, in the wheel rim provided in this application embodiment, the width of the noise-reducing component 2 is between 10 and 30 mm, which is narrower than conventional sound-absorbing sponges. For wheel rims of different sizes, the number of wrapping turns of the noise-reducing component 2 can be changed according to actual needs to completely cover the outer peripheral wall 11 of the wheel rim body 1. In other words, only one width specification of noise-reducing component 2 needs to be produced to fit most wheel rim widths, which can effectively reduce the types of materials. Compared with the wider sound-absorbing sponges in related technologies, it has better adaptability and can reduce the manufacturing cost of the noise-reducing wheel rim.

[0053] Furthermore, the noise reduction component 2 provided in this application embodiment has a small width and can be freely combined during winding, thereby maximizing the coverage of the outer peripheral wall 11 of the rim body 1, thus better absorbing noise.

[0054] In some embodiments of this application, the rim includes a first functional element 3 connected between the noise reduction element 2 and the rim body 1 to absorb at least part of the vibration transmitted from the rim body 1 to the noise reduction element 2.

[0055] During vehicle operation, some of the driving noise generated by the tires is transmitted to the wheel rims. This noise may then be transmitted into the vehicle interior through the wheel rims, resulting in excessive noise inside the vehicle and a poor riding experience for the user.

[0056] In the wheel rim provided in the embodiments of this application, in order to further reduce the noise transmitted to the vehicle interior, such as Figure 3 As shown, a first functional component 3 can be additionally provided between the outer peripheral wall 11 of the rim body 1 and the noise reduction component 2. The first functional component 3 not only has a fixing function, which can realize the fixed connection between the rim body 1 and the noise reduction component 2, but also has the performance of a damping layer, which can absorb at least part of the vibration generated on the rim body 1. In other words, the rim provided in this application embodiment, by setting the first functional component 3 and the noise reduction component 2, achieves double reduction of the noise transmitted from the rim body 1 to the vehicle interior, resulting in better noise reduction effect and improved NVH performance of the whole vehicle.

[0057] In some embodiments, the first functional component 3 may include a damping layer and an adhesive layer. An adhesive layer is provided on both sides of the damping layer. The two adhesive layers are respectively connected to the rim body 1 and the noise reduction component 2. The damping layer is a component with elastic deformation function.

[0058] While this configuration offers superior noise reduction, it requires an additional damping layer, resulting in higher manufacturing costs and a more complex manufacturing process, making it unsuitable for mass production. Therefore, the first functional component 3 can be a component that simultaneously functions as both a damping layer and an adhesive layer.

[0059] Optionally, the first functional component 3 is butyl rubber. Butyl rubber not only has good adhesion properties, enabling the fixed connection between the wheel rim body 1 and the noise reduction component 2, but also undergoes a certain degree of elastic deformation under stress, which can absorb some vibration. Using butyl rubber not only takes into account the noise reduction performance of the wheel rim, but also reduces production costs and manufacturing difficulty, and can meet the needs of mass production.

[0060] In some embodiments of this application, the multi-turn noise reduction element 2 is spirally wound around the outer peripheral wall 11, and there is a gap 23 between any one turn of the noise reduction element 2 and the adjacent turn of the noise reduction element 2; the rim also includes a second functional element, which is located in the gap 23 and is connected to two adjacent turns of the noise reduction element 2 respectively, and fills the gap 23. The second functional element is used to absorb at least part of the vibration transmitted from the rim body 1 to the noise reduction element 2.

[0061] As can be seen from the above embodiments, the noise reduction component 2 is spirally sleeved on the outer peripheral wall 11 of the rim body 1. Therefore, when the noise reduction component 2 is wound, due to the problem of process precision, a gap 23 may appear between two adjacent turns of the noise reduction component 2, which is equivalent to reducing the coverage area of ​​the noise reduction component 2 and affecting the noise reduction effect of the rim.

[0062] In the wheel rim provided in the embodiments of this application, such as Figure 4 As shown, after the noise reduction component 2 is wound, a second functional component can be filled in multiple gaps 23. The second functional component absorbs at least part of the vibration on the adjacent two rings of noise reduction component 2, thereby improving the overall noise reduction effect of the rim.

[0063] Optionally, the second functional component is butyl rubber. Butyl rubber not only undergoes a certain degree of elastic deformation under stress to absorb some vibration, but also has good adhesion properties, enabling the bonding connection between adjacent noise reduction components 2, thus improving the connection stability of the noise reduction components 2 and preventing them from falling off when the rim rotates at high speed.

[0064] In some embodiments of this application, from the first ring to the i-th ring, the noise reduction components 2 are arranged sequentially along the axial direction of the rim body 1, and the noise reduction components 2 of adjacent rings are partially overlapped. That is, from the first ring to the i-th ring, for any ring of noise reduction components 2, there will be partial overlap with the noise reduction components 2 of the next ring during winding. In other words, the noise reduction components 2 of the next ring will press down on the noise reduction components 2 of the previous ring, thereby fixing the noise reduction components 2 of the previous ring through the noise reduction components 2 of the next ring. This arrangement makes the connection between the noise reduction components 2 and the rim body 1 more secure, further reducing the risk of the noise reduction components 2 falling off when the rim body 1 rotates at high speed.

[0065] In addition, with this configuration, since each noise reduction component 2 has the function of pressing and fixing the previous noise reduction component 2, the area of ​​the connecting parts between the noise reduction component 2 and the rim body 1 can be reduced. For example, only the two ends of the noise reduction component 2 along the length direction can be fixed.

[0066] In some embodiments, the rim may further include a first fixing member that fixes the first end 21 of the noise reduction member 2 to the outer peripheral wall 11; and / or, the rim may further include a second fixing member that fixes the second end 21 of the noise reduction member 2 to the outer peripheral wall 11, and the first end 21 and the second end 22 are opposite ends of the noise reduction member 2 along the length direction.

[0067] In the wheel rim provided in this embodiment, the first end 21 and the second end 22 of the noise reduction component 2 can be fixed by setting a first fixing member and a second fixing member, thus satisfying the fixing requirements of the noise reduction component 2 in the above embodiment. The first fixing member and the second fixing member can be adhesives, tapes, or other components with adhesive functions, and those skilled in the art can select and adjust them according to actual needs.

[0068] In addition, for the embodiment described above in which a first functional part is provided between the noise reduction component 2 and the rim body 1, a first fixing member and a second fixing member can also be provided to reinforce and fix the first end 21 and the second end 22 of the noise reduction component 2, thereby further reducing the risk and probability of the noise reduction component 2 falling off.

[0069] However, in this configuration, both ends of the noise reduction component 2 along its length are still exposed in the space between the rim body 1 and the tire. In some embodiments, the noise reduction component 2 includes a first end 21 and a second end 22 opposite each other along its length, with the noise reduction component 2 extending from the first end 21 around the rim body 1 to the second end 22; at least a portion of the first end 21 extends into the space between the next loop of the noise reduction component 2 and the outer peripheral wall 11; and / or, at least a portion of the second end 22 extends into the space between the previous loop of the noise reduction component 2 and the outer peripheral wall 11.

[0070] In the wheel rim provided in this application embodiment, the first and last ends of the noise reduction component 2 can also be inserted between the noise reduction component 2 of the middle ring and the outer peripheral wall 11 of the wheel rim body 1. That is, the noise reduction component 2 of the middle ring reinforces and fixes the first end 21 and the second end 22, preventing the first and last ends of the noise reduction component 2 from falling off when the wheel rim body 1 rotates at high speed, thereby reducing the risk and probability of the noise reduction component 2 falling off.

[0071] This application also provides a method for manufacturing a wheel rim, applicable to the aforementioned wheel rim, the method comprising:

[0072] S100. Clean the outer peripheral wall 11 of the rim body 1 and place the cleaned rim body 1 on a workbench that allows it to rotate around the axis.

[0073] It should be noted that during cleaning, it is necessary to ensure that there is no water or dust on the outer peripheral wall 11 of the wheel rim body 1 after cleaning. A dry cloth can be used to clean the wheel rim body 1.

[0074] S200. Connect the noise reduction component 2 to one side of the valve or controller on the rim body 1, and spirally wind the noise reduction component 2 around the rim body 1 according to the set pitch.

[0075] Optionally, the pitch is 30mm.

[0076] S300, Compact the noise reduction component 2.

[0077] It should be noted that during the compaction operation, the noise reduction components 2 at both ends can be compacted first, and then the remaining noise reduction components 2 can be compacted to ensure that each section of the noise reduction component 2 is tightly connected to the wheel rim body 1.

[0078] This application also provides a vehicle that includes the aforementioned wheel rim.

[0079] In the vehicle provided in this application embodiment, a noise reduction component 2 is wound around the outside of the rim body 1. The noise reduction component 2 can absorb at least part of the noise transmitted from the rim body 1 to the noise reduction component 2, thereby reducing the driving noise generated by the tires during vehicle operation, and thus improving the NVH performance of the entire vehicle, providing users with a better riding experience. Meanwhile, in the rim provided in this application, the noise reduction component 2 is wound multiple times around the circumference of the rim body 1. Compared to rims in related technologies where a layer of sound insulation cotton is attached, the noise reduction component 2, during rim rotation, has its own structure... The structural force can offset part of the centrifugal force, which can reduce the risk and probability of the noise reduction component 2 falling off and ensure the connection stability between the noise reduction component 2 and the rim body 1. In addition, in the related technology, the rim sponge must have at least one gap 23 to avoid the air valve, which leads to a decrease in the total volume of the sponge and a decrease in the noise reduction effect. However, the noise reduction component 2 in this application is spirally wound around the rim body 1 multiple times. It can start from the position near the air valve and can wrap the outer peripheral wall 11 of the rim body 1 to the maximum extent, which further improves the noise reduction effect.

[0080] Furthermore, based on multiple tests, it can be seen that the vehicle provided in this application embodiment, due to the use of the aforementioned wheel rim, has an overall noise reduction of 6-6.5 decibels compared to a vehicle without noise reduction component 2, and a noise reduction effect that is 10%-20% higher than a vehicle with sound-absorbing sponge attached to the wheel rim.

[0081] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0082] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0083] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A wheel rim characterized in that, The wheel rim comprises a wheel rim body (1) and a noise reduction piece (2); The noise reduction piece (2) is spirally and continuously wound on the wheel rim body (1) along the circumference of the wheel rim body (1) and is at least partially connected with the outer peripheral wall (11) of the wheel rim body (1), the number of turns of the noise reduction piece (2) wound on the outer peripheral wall (11) is i, i is greater than or equal to 3; The noise reduction piece (2) is used for absorbing at least part of the noise in the environment of the wheel rim body (1) and absorbing at least part of the vibration generated by the wheel rim body (1); The wheel rim comprises a first functional piece (3) connected between the noise reduction piece (2) and the wheel rim body (1) to absorb at least part of the vibration transmitted by the wheel rim body (1) to the noise reduction piece (2); A plurality of turns of the noise reduction piece (2) are spirally wound on the outer peripheral wall (11), and there is a gap (23) between any one turn of the noise reduction piece (2) and an adjacent turn of the noise reduction piece (2); The wheel rim further comprises a second functional piece (4) located in the gap (23) and connected with the adjacent two turns of the noise reduction piece (2) respectively, and filling the gap (23), the second functional piece (4) is used for absorbing at least part of the vibration transmitted by the wheel rim body (1) to the noise reduction piece (2).

2. The rim according to claim 1, characterized in that The first functional piece (3) is butyl rubber; and / or, The second functional piece (4) is butyl rubber.

3. The rim of claim 1, wherein, From the first turn to the i th turn, the noise reduction pieces (2) are arranged in sequence along the axial direction of the wheel rim body (1), and the adjacent two turns of the noise reduction pieces (2) are partially overlapped.

4. The rim of claim 1, wherein, The wheel rim further comprises a first fixing piece for fixing a first end (21) of the noise reduction piece (2) on the outer peripheral wall (11); and / or, The wheel rim further comprises a second fixing piece for fixing a second end (22) of the noise reduction piece (2) on the outer peripheral wall (11), and the first end (21) and the second end (22) are opposite ends of the noise reduction piece (2) in the length direction.

5. The rim of claim 1, wherein, The noise reduction piece (2) comprises a first end (21) and a second end (22) opposite in the length direction, and the noise reduction piece (2) is wound on the wheel rim body (1) from the first end (21) to the second end (22); At least part of the first end (21) extends into the gap between the next turn of the noise reduction piece (2) and the outer peripheral wall (11); and / or, At least part of the second end (22) extends into the gap between the previous turn of the noise reduction piece (2) and the outer peripheral wall (11).

6. The rim according to any one of claims 1 to 5, characterized in that The noise reduction piece (2) comprises a combination of one or at least two of polyurethane sponge, foamed plastic and polyurethane foam.

7. A manufacturing method of a rim applied to the rim according to any one of claims 1 to 6, characterized by, The manufacturing method comprises: cleaning the outer peripheral wall (11) of the wheel rim body (1) and placing the cleaned wheel rim body (1) on a workbench that can rotate around an axis; The air valve or controller on one side of the rim body (1) is connected to the noise reduction piece (2), and the noise reduction piece (2) is spirally arranged on the rim body (1) according to the set pitch; The noise reduction piece (2) is compacted.

8. A vehicle characterized by comprising: The vehicle comprises the rim according to any one of claims 1 to 6.

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