Tire noise reduction device and vehicle with same

Abstract

The utility model discloses a tire noise reduction device and a vehicle with the same, the tire noise reduction device is used for a wheel, the wheel comprises a hub and a tire, the hub and the tire define a tire cavity, the tire noise reduction device comprises a separator and an elastic piece, the separator is rotatably mounted on the wheel surface of the hub, and the elastic piece is arranged on the tire surface of the hub in the rotating direction of the separator. The separator is provided with a first position for separating a tire cavity and a second position close to a wheel surface; an elastic member is disposed within the tire cavity, the elastic member holding the spacer in the second position. According to the tire noise reduction device disclosed by the utility model, the separator is rotatably mounted on the wheel surface of the hub, and the separator is used for separating the tire cavity when located at the first position, so that the effective length of the tire cavity is reduced, and the resonant frequency of the tire cavity can be improved; resonance between the resonance frequency of a tire cavity and structures such as a suspension vehicle body with low frequency is avoided, noise and vibration are reduced, and the comfort and quietness during vehicle taking are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a tire noise reduction device and a vehicle with the same. Background Art

[0002] In the related technology, when the vehicle is driving, the hollow tire skin is easily stimulated by the road surface to produce a resonance frequency of about 200Hz, which is easy to resonate with the lower frequency suspension body and other structures, causing resonance phenomenon and generating large noise and vibration. The common sound-absorbing structure is to stick sound-absorbing cotton on the inner side of the tire skin. This solution can effectively eliminate the resonance of the tire cavity, but it is attached to the tire skin, and the tire skin is punctured or the tire is replaced, which will cause the function to fail. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a tire noise reduction device, wherein a partition is rotatably arranged on a wheel surface, and is used to separate the tire cavity, increase the resonance frequency of the tire cavity, reduce noise and vibration, and improve the comfort and quietness when riding in a vehicle.

[0004] The utility model also provides a vehicle with the tire noise reduction device.

[0005] The tire noise reduction device according to the first aspect of the present invention is used for a wheel, wherein the wheel includes a hub and a tire, wherein the hub and the tire define a tire cavity, and includes: a partition, wherein the partition is rotatably mounted on the wheel surface of the hub, wherein in the rotation direction of the partition, the partition has a first position for partitioning the tire cavity and a second position close to the wheel surface; and an elastic member, wherein the elastic member is disposed in the tire cavity, and wherein the elastic member keeps the partition at the second position.

[0006] According to the tire noise reduction device of the embodiment of the utility model, the partition is rotatably mounted on the wheel surface of the wheel hub, and the partition has a first position and a second position. The partition is located at the first position and is used to separate the tire cavity and reduce the effective length of the tire cavity. The resonance frequency of the tire cavity can be increased to avoid resonance between the resonance frequency of the tire cavity and structures such as the suspension body with lower frequencies, thereby reducing noise and vibration and improving the comfort and quietness when riding in the vehicle. When the partition is located at the second position, the elastic member keeps the partition in a position close to the wheel surface, which is convenient for repairing or replacing the tire.

[0007] According to some embodiments of the present invention, the partition is a partition plate.

[0008] According to some embodiments of the present invention, the separator has a through hole, the elastic member is in a ring shape surrounding the outer circumference of the wheel surface, and the elastic member is inserted into the through hole to keep the separator in the second position.

[0009] According to some embodiments of the present invention, the elastic member is an elastic rope.

[0010] According to some embodiments of the utility model, the tire noise reduction device also includes: a rotating connector, the rotating connector includes a first connecting plate and a second connecting plate hingedly connected, the first connecting plate is fixedly connected to the partition, and the second connecting plate is fixedly connected to the wheel surface.

[0011] According to some embodiments of the utility model, a limiter is provided between the first connecting plate and the second connecting plate, and the limiter is used to limit the maximum rotation angle of the first connecting plate relative to the second connecting plate, wherein the maximum rotation angle of the first connecting plate relative to the second connecting plate is α, satisfying: 0°<α≤90°.

[0012] According to some embodiments of the present invention, there are multiple separators and multiple rotating connectors, the number of the separators is equal to and corresponds to the number of the rotating connectors, and the multiple separators are arranged at intervals along the circumference of the hub.

[0013] According to some embodiments of the present invention, a plurality of the separators are arranged at equal intervals along the circumference of the hub.

[0014] According to some embodiments of the utility model, the circumferential direction of the hub has a clockwise direction and a counterclockwise direction, and each of the first connecting plates is connected to one end of the second connecting plate in the clockwise direction, or each of the first connecting plates is connected to one end of the second connecting plate in the counterclockwise direction.

[0015] A vehicle according to an embodiment of the second aspect of the utility model comprises: a wheel, and a tire noise reduction device according to the embodiment of the first aspect of the utility model.

[0016] According to the vehicle of the utility model, by providing the above-mentioned tire noise reduction device, the resonance frequency of the tire cavity can be increased, and resonance between the resonance frequency of the tire cavity and the lower-frequency structures such as the suspension body can be avoided, thereby reducing noise and vibration, and improving the comfort and quietness when riding in the vehicle.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a schematic diagram of the cooperation between the tire noise reduction device and the wheel hub according to some embodiments of the utility model;

[0020] Figure 2 is a schematic diagram of a partition plate according to some embodiments of the utility model;

[0021] Figure 3 It is a schematic diagram of a rotating connection according to some embodiments of the utility model.

[0022] Reference numerals:

[0023] 100, wheel hub; 101, wheel surface;

[0024] 10. Tire noise reduction device;

[0025] 1. separator; 11. separator plate; 12. via;

[0026] 2. Elastic parts;

[0027] 3. Rotating connecting member; 31. First connecting plate; 32. Second connecting plate. DETAILED DESCRIPTION

[0028] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0030] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 or an electrical connection; 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 the present utility model can be understood according to specific circumstances.

[0031] Reference below Figure 1-Figure 3 A tire noise reduction device 10 according to an embodiment of the present invention is described.

[0032] According to the tire noise reduction device 10 of the first aspect of the utility model, the tire noise reduction device 10 is used for a wheel, and the wheel includes a wheel hub 100 and a tire, and the wheel hub 100 and the tire define a tire cavity. The tire noise reduction device 10 includes a partition 1, and the partition 1 is rotatably mounted on the wheel surface 101 of the wheel hub 100, and the partition 1 can rotate relative to the wheel hub 100. In the rotation direction of the partition 1, the partition 1 has a first position and a second position. When the partition 1 is in the first position, the partition 1 is used to separate the tire cavity; when the partition 1 is in the second position, the partition 1 is close to the wheel surface 101. For example, the partition 1 can be a partition plate 11, a partition block, or a plurality of partition horizontal strips and partition vertical strips connected together.

[0033] The tire noise reduction device 10 further includes an elastic member 2, which is disposed in the tire cavity. The elastic member 2 keeps the partition 1 at the second position. The elastic member 2 has an elastic force that can keep the partition 1 at the second position.

[0034] The separator 1 can be switched between a first position and a second position. When the vehicle is driving, the wheels will generate centrifugal force, which can overcome the elastic force of the elastic member 2 and switch the separator 1 to the first position. When the vehicle is stationary, the elastic force of the elastic member 2 can keep the separator 1 in the second position.

[0035] In the related art, due to the existence of the tire cavity during driving, the road excitation easily excites the resonance frequency of the tire cavity at around 200 Hz. The generated resonance frequency easily resonates with the lower frequency structures such as the suspension body, causing resonance phenomenon and generating greater noise and vibration.

[0036] The resonant frequency of the tire cavity can be calculated using the following formula:

[0037] F = C / (2π*L), where F represents the resonant frequency (unit: Hz), C is the speed of sound (unit: m / s), and L is the effective length of the tire cavity (unit: m). From the above formula, it can be seen that changing the effective length of the tire cavity can change the resonant frequency. The effective length of the tire cavity of a fixed tire is fixed. By setting a partition 1, the tire cavity can be divided to reduce the effective length of the tire cavity. From the formula F = C / (2π*L), it can be seen that reducing the value of the effective length L of the tire cavity can increase the value of the resonant frequency F, which can avoid the resonant frequency of the tire cavity from resonating with the lower frequency suspension body and other structures, effectively improve the resonance phenomenon caused by the tire sound cavity, reduce noise and vibration, and improve the comfort and quietness when riding in the vehicle.

[0038] By setting the separator 1 on the wheel surface 101, when the vehicle is running, the separator 1 is located at the first position, used to separate the tire cavity, used to reduce the effective length of the tire cavity, and can increase the resonance frequency of the tire cavity, avoid the resonance of the tire cavity with the lower frequency of the suspension body and other structures, reduce noise and vibration, and improve the comfort and quietness when riding in the vehicle. When the vehicle is stationary, the elastic member 2 keeps the separator 1 in the second position close to the wheel surface 101, which is convenient for repairing or replacing tires; and the separator 1 is installed on the wheel surface 101 of the wheel hub 100, and the wheel hub 100 can be used for various tires of the same specification, and the quiet effect will not be affected by tire repair or replacement.

[0039] According to the tire noise reduction device 10 of the embodiment of the utility model, the separator 1 is rotatably mounted on the wheel surface 101 of the wheel hub 100, and the separator 1 has a first position and a second position. The separator 1 is located at the first position and is used to separate the tire cavity and reduce the effective length of the tire cavity, thereby increasing the resonance frequency of the tire cavity and avoiding resonance between the resonance frequency of the tire cavity and structures such as the suspension body with lower frequencies, thereby reducing noise and vibration and improving the comfort and quietness when riding in the vehicle; when the separator 1 is located at the second position, the elastic member 2 keeps the separator 1 in a position close to the wheel surface 101, so as to facilitate repairing or replacing the tire.

[0040] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The separator 1 is a separator plate 11 , which can facilitate the separator 1 to separate the tire cavity and is also beneficial to the processing and installation of the separator 1 .

[0041] According to some embodiments of the present invention, referring to Figure 1-Figure 2The separator 1 has a through hole 12, and the elastic member 2 is annular and surrounds the outer circumference of the wheel surface 101. The elastic member 2 can movably surround the outer circumference of the wheel surface 101 by its own force. The elastic member 2 is inserted into the through hole 12 to keep the separator 1 in the second position. The elastic member 2 is arranged around the outer circumference of the wheel surface 101. The elastic member 2 can provide a force acting toward the center of the wheel hub 100 to press the separator 1 onto the wheel surface 101.

[0042] For example, the through hole 12 can be arranged adjacent to the wheel hub 100. When the vehicle is running, the centrifugal force on the wheel can overcome the elastic force of the elastic member 2, so that the partition 1 is maintained at the first position for partitioning the tire cavity. The elastic member 2 is passed through the through hole 12, and the through hole 12 can be arranged adjacent to the wheel hub 100, which can reduce the elastic force of the elastic member 2 and avoid the elastic force of the elastic member 2 being too large, so that the centrifugal force on the tire cannot overcome the elastic force of the elastic member 2.

[0043] According to some embodiments of the present invention, referring to Figure 1-Figure 2 The elastic member 2 is an elastic rope, which can be passed through the through hole 12 and wrapped around the outer peripheral side of the wheel surface 101, and the two ends of the elastic rope are fixed, so that the structure and installation method of the elastic member 2 are simple, and it is also convenient for the elastic member 2 to keep the partition 1 in the second position.

[0044] According to some embodiments of the present invention, referring to Figure 1-Figure 3 The tire noise reduction device 10 further includes: a rotating connector 3, the rotating connector 3 includes a first connecting plate 31 and a second connecting plate 32 which are hingedly connected, the first connecting plate 31 is fixedly connected to the separator 1, and the second connecting plate 32 is fixedly connected to the wheel surface 101, for example, the second connecting plate 32 can be fixed to the wheel surface 101 of the wheel hub 100 by a fastener. The separator 1 is rotatably mounted on the wheel surface 101 of the wheel hub 100 by the rotating connector 3, the first connecting plate 31 can rotate relative to the second connecting plate 32, and the first connecting plate 31 can drive the separator 1 to rotate when rotating. By providing the rotating connector 3, the separator 1 can be easily rotated relative to the wheel surface 101.

[0045] According to some embodiments of the present invention, referring to Figure 1-Figure 3 There is a limiter between the first connecting plate 31 and the second connecting plate 32, and the limiter is used to limit the maximum rotation angle of the first connecting plate 31 relative to the second connecting plate 32, wherein the maximum rotation angle of the first connecting plate 31 relative to the second connecting plate 32 is α, satisfying: 0°<α≤90°, that is, the maximum rotation angle of the partition 1 relative to the second connecting plate 32 is α, satisfying: 0°<α≤90°, and the rotation angle can be determined by the centrifugal force exerted on the wheel. The greater the centrifugal force exerted on the wheel, the greater the rotation angle of the partition 1.

[0046] When the maximum rotation angle of the first connecting plate 31 relative to the second connecting plate 32 is 90°, the maximum rotation angle of the partition 1 relative to the second connecting plate 32 is 90°, the rotation angle of the partition 1 relative to the wheel surface 101 is 90°, the partition 1 can be perpendicular to the wheel surface 101, and the partition 1 can separate the tire space.

[0047] According to some embodiments of the present invention, referring to Figure 1 There are multiple separators 1 and rotating connectors 3, the number of separators 1 is equal to the number of rotating connectors 3 and corresponds one to one, and multiple separators 1 are arranged at intervals along the circumference of the wheel hub 100 to divide the tire cavity into multiple sub-tire cavities, each sub-tire cavity has a resonance frequency, and the resonance frequency of the sub-tire cavity is high, which avoids the resonance of the sub-tire cavity with the lower frequency structure such as the suspension body, effectively improves the resonance phenomenon caused by the tire sound cavity, reduces noise and vibration, and improves the comfort and quietness of the vehicle.

[0048] According to some embodiments of the present invention, referring to Figure 1 A plurality of spacers 1 are arranged at equal intervals along the circumference of the wheel hub 100, which can prevent the wheel from being eccentric during driving and causing the wheel to deviate.

[0049] According to some embodiments of the present invention, referring to Figure 1 , having a clockwise direction and a counterclockwise direction in the circumferential direction of the wheel hub 100 , each first connecting plate 31 is connected to one end of the second connecting plate 32 in the clockwise direction, or each first connecting plate 31 is connected to one end of the second connecting plate 32 in the counterclockwise direction.

[0050] When the first connecting plate 31 rotates relative to the second connecting plate 32, all the first connecting plates 31 move in a fixed direction relative to the corresponding second connecting plates 32, that is, the partition 1 can move in a fixed direction relative to the second connecting plate 32, avoiding movement interference between two adjacent partitions 1.

[0051] The vehicle according to the embodiment of the second aspect of the utility model comprises: a wheel; and the tire noise reduction device 10 according to the embodiment of the first aspect of the utility model.

[0052] According to the vehicle of the present invention, by providing the above-mentioned tire noise reduction device 10, the resonance frequency of the tire cavity can be increased, and the resonance between the resonance frequency of the tire cavity and the lower-frequency structures such as the suspension body can be avoided, thereby reducing noise and vibration, and improving the comfort and quietness when riding in the vehicle.

[0053] In the description of this specification, the description with reference to the terms "some embodiments", "optionally", "further" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0054] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A tire noise reduction device, used for a wheel, the wheel comprising a hub and a tire, the hub and the tire defining a tire cavity, characterized in that: include: A separator, the separator is rotatably mounted on the wheel surface of the hub, and in the rotation direction of the separator, the separator has a first position for separating the tire cavity and a second position close to the wheel surface; An elastic member is disposed in the tire cavity, and the elastic member keeps the partition member at the second position.

2. The tire noise reduction device according to claim 1, characterized in that: The partition is a partition plate.

3. The tire noise reduction device according to claim 1, characterized in that: The separator has a through hole, the elastic member is in a ring shape surrounding the outer circumference of the wheel surface, and the elastic member is inserted into the through hole to keep the separator at the second position.

4. The tire noise reduction device according to claim 3, characterized in that: The elastic member is an elastic rope.

5. The tire noise reduction device according to claim 1, characterized in that: Also includes: The rotating connecting member includes a first connecting plate and a second connecting plate which are hingedly connected, the first connecting plate is fixedly connected to the partition, and the second connecting plate is fixedly connected to the wheel surface.

6. The tire noise reduction device according to claim 5, characterized in that: A limiter is provided between the first connecting plate and the second connecting plate, and the limiter is used to limit the maximum rotation angle of the first connecting plate relative to the second connecting plate, wherein the maximum rotation angle of the first connecting plate relative to the second connecting plate is α, satisfying: 0°<α≤90°.

7. The tire noise reduction device according to claim 5, characterized in that: There are a plurality of the separators and the rotating connectors, the number of the separators is equal to and corresponds to the number of the rotating connectors, and the plurality of separators are arranged at intervals along the circumference of the hub.

8. The tire noise reduction device according to claim 7, characterized in that: The plurality of spacers are arranged at equal intervals along the circumference of the hub.

9. The tire noise reduction device according to claim 7, characterized in that: The hub has a clockwise direction and a counterclockwise direction in the circumferential direction, and each of the first connecting plates is connected to one end of the second connecting plate in the clockwise direction, or each of the first connecting plates is connected to one end of the second connecting plate in the counterclockwise direction.

10. A vehicle, characterized in that: include: wheel; The tire noise reduction device according to any one of claims 1 to 9.

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