WO2021080119A1

WO2021080119A1 - Vehicle wheel including housing having sound absorption module with porous structure

Info

Publication number: WO2021080119A1
Application number: PCT/KR2020/008750
Authority: WO
Inventors: 최성훈; 이종주; 안희찬; 이동형; 신동용; 황재현; 정의민; 박대훈
Original assignee: 현대성우캐스팅(주); 서우산업주식회사
Priority date: 2019-10-21
Filing date: 2020-07-03
Publication date: 2021-04-29

Abstract

A vehicle wheel according to the present invention comprises: spokes; a rim connected to a circumferential part of the spokes; a sound absorption module of which at least a portion is formed as a porous structure so as to reduce noise; a housing for encompassing at least a portion of the sound absorption module; and a fastening part for fastening the sound absorption module and the housing, wherein the sound absorption module or the housing encompasses at least a portion of the rim.

Description

Vehicle wheel including a housing provided with a porous sound-absorbing module

The present invention relates to a vehicle wheel provided with a sound-absorbing module having a porous structure, and more particularly, a sound-absorbing module formed in a porous structure to absorb noise generated from the wheel or road surface, and a fastening part that connects the sound-absorbing module and the housing. It relates to a vehicle wheel including.

The content described in this section merely provides background information on the present invention and does not constitute the prior art.

In general, since the wheel needs to support the entire load of the vehicle with four wheels, a material having a predetermined rigidity, for example, a metal material or an aluminum alloy material is often used.

Such a material has an advantage in securing rigidity, but on the contrary, it is vulnerable to noise and vibration transmitted from the ground through a tire.

That is, most of the noise generated when a vehicle is driving is due to the wind generated around the driving vehicle, and also occurs on the contact surface between the tire and the road surface.

Therefore, as a method of reducing the noise generated by contacting the road surface, it can be said that it is most effective to absorb it at the contact surface of the tire, which is the origin of the noise, but in reality it is almost impossible.

For this reason, noise generated by the contact between the road surface and the tire is transmitted through the tire in the order of the wheel and the drive shaft, resulting in lowering the ride comfort of the vehicle and acting as a factor that hinders the creation of a comfortable indoor environment.

On the other hand, in the case of the aluminum alloy currently used to manufacture the wheel, noise is generated like this, but in the case of a wheel made of metal, in addition to this noise, noise is generated more when it collides with foreign substances such as gravel on the road surface.

Therefore, development of a wheel that can reduce noise to ensure a comfortable interior space as well as ride comfort by minimizing transmission to the interior of the car through the drive shaft by blocking noise transmitted to the wheel through the tire or when the wind passes through the wheel. Was required.

In general, in the case of a vehicle, noise is generated due to various causes and flows into the interior. The largest factor is road noise generated by the road surface, which is divided into road surface noise, booming sound, and rumble sound.

In addition, the road surface noise is often generated through the ground, tires, wheels, suspension, and the like. In addition, since such road noise causes severe discomfort to the driver, methods for reducing this are continuously studied.

Accordingly, various technologies have been developed, such as a technology that improves the strength of the suspension, a technology that applies a damper that reduces the vibration of the vehicle, and a technology that uses a sound-absorbing material, but this does not have a significant effect of reducing noise compared to the manufacturing cost of the device. There is a problem that causes a significant increase in the unit price of the product.

In order to solve the problems of the conventional vehicle wheel described above, some domestic and foreign related companies have conducted research on a wheel with a sound-absorbing material, but in order to make it into a product, the cost of having a wheel structure with a sound-absorbing material is excessive. However, even if it is not, the noise reduction effect compared to the manufacturing cost of the device is not large, and the market competitiveness is low compared to the conventional vehicle wheel, so there has been no case of full commercialization.

Accordingly, there is a need to develop a device capable of solving the problems of the prior art as described above.

The problem to be solved by the present invention is to compensate for the disadvantages of the prior art mentioned above, and the object of the present invention is as follows.

First, it is intended to provide a vehicle wheel capable of effectively reducing and blocking noise generated by various causes during vehicle operation.

Second, it is intended to provide a vehicle wheel including a housing of a sound-absorbing module that can prevent separation due to centrifugal force during high-speed driving and damage when a tire is attached or detached.

Third, it is intended to provide a vehicle wheel including a sound-absorbing module and a housing that are fastened by wire banding and other methods.

The problems of the present invention are not limited to the problems mentioned above, and other problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

The vehicle wheel of the present invention for achieving the above object includes a spoke, a rim connected to the circumference of the spoke, and at least a part of the sound-absorbing module that is formed in a porous structure and surrounds at least a part of the outer circumferential surface of the rim to reduce noise. Including, the sound-absorbing module may be characterized in that it is provided by stacking different first and second sound-absorbing parts.

According to another feature of the present invention, a vehicle wheel includes a spoke, a rim connected to the circumference of the spoke, a sound absorbing module that is formed in at least a part of a porous structure to reduce noise, and a housing provided to surround at least a part of the sound absorbing module, and And a fastening part for fastening the sound-absorbing module and the housing, and the sound-absorbing module or the housing may be formed to surround at least a portion of the rim.

In this case, the sound-absorbing module may be provided by stacking different first and second sound-absorbing parts.

In this case, the first sound absorbing part may be formed such that the elasticity of the first sound absorbing part is greater than that of the second sound absorbing part, or the porosity of the first sound absorbing part is greater than that of the second sound absorbing part.

Alternatively, the second sound absorbing unit may be provided to surround at least a portion of an outer circumferential surface of the first sound absorbing unit.

In addition, the first sound absorbing unit may be formed by being divided into a plurality of first divided sound absorbing members provided with a predetermined length.

In this case, the second sound absorbing unit is formed by being divided into a plurality of second split sound absorbing members provided with a predetermined length, and the length of the second split sound absorbing member is formed to be longer than the length of the first split sound absorbing member. It can be characterized.

Alternatively, the rim may include a seating groove recessed along an outer circumferential surface of the rim so that the sound-absorbing module or the housing is seated.

Alternatively, the sound-absorbing module may include a first protrusion partially protruding toward the outer peripheral surface of the rim so that an air layer is formed between the outer peripheral surface of the rim.

In addition, the housing may include a second protrusion partially protruding toward the outer peripheral surface of the rim so that an air layer is formed between the outer peripheral surface of the rim.

Alternatively, the housing may be characterized in that at least a portion of the outer circumferential surface is formed in a mesh shape.

The fastening part may include a fastening member, a fastening counterpart, and a bending part.

The fastening part may be formed on one side of the sound absorbing module or the housing to fasten the sound absorbing module or the housing.

The fastening member may include a binding type fastening member, a fitting type fastening member, and a debuckle type fastening member.

The fastening corresponding member may include a binding type fastening corresponding member, a fitting type fastening corresponding member, and a debuckle type fastening corresponding member.

Additional solutions of the present invention will be described in part in the description that follows below, and can be partially easily identified from the description, or can be learned by the practice of the present invention.

Both the foregoing general description and the following detailed description are illustrative and illustrative only and do not limit the invention described in the claims.

The effects of the present invention configured as described above will be described as follows.

First, the noise-absorbing module provided to surround the rim of the vehicle wheel can efficiently absorb road surface noise generated during the operation of the vehicle.

Second, since the sound-absorbing module can be installed on the wheel while being provided in a separate housing, productivity can be further improved.

Third, the divided sound-absorbing module and the housing can be installed on the vehicle wheel while being bound to the fastening part, so that it can be easily attached and detached.

Fourth, when damaged by abrasion or damage to the sound absorbing module and the housing, it can be easily replaced from the vehicle wheel.

Fifth, it is possible to easily apply the sound-absorbing module of the present invention to a vehicle wheel conventionally manufactured as a ready-made product.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 and 2 are views showing the appearance of a vehicle wheel provided with the sound-absorbing module of the present invention.

3 and 4 are views showing a vehicle wheel provided with a sound-absorbing module in which an air layer is formed according to the present invention.

5 and 6 are views showing the appearance of a vehicle wheel in which the sound-absorbing module of the present invention is divided and provided.

And Figures 7 to 8 are views showing the appearance of a vehicle wheel including a housing provided to surround the sound-absorbing module of the present invention.

9 is a view showing a vehicle wheel including a sound absorbing module and a housing coupled by a fastening part of the present invention.

10 is a view showing a bending part of a vehicle wheel according to the present invention.

11 is a view showing the state of the vehicle wheel including the binding type fastening member and the binding type fastening counter member of the present invention.

12 is a view showing the appearance of a vehicle wheel including a fitting type fastening member and a fitting type fastening member according to the present invention.

13 is a view showing a state of a vehicle wheel including a fitting type fastening member and a fitting type fastening member according to the present invention.

14 is a view showing a state of a vehicle wheel including a buckle-type fastening member and a buckle-type fastening member according to the present invention.

15 is a view showing the appearance of a vehicle wheel including the mesh-type surface sound absorption module of the present invention.

16 is a view showing a cross-section of a vehicle wheel including the mesh-type surface sound absorption module of the present invention.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, in describing a specific embodiment of the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

The above objects, features, and advantages of the present invention will become more apparent through the following detailed description in conjunction with the accompanying drawings. However, in the present invention, various modifications may be made and various embodiments may be included. Hereinafter, specific embodiments will be illustrated in the drawings and described in detail.

If it is determined that a detailed description of known functions or configurations related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, numbers used in the description process of the present specification are merely identification symbols for distinguishing one component from other components.

In addition, the suffix "unit" for the constituent elements used in the following description is used only to easily write the specification or is used interchangeably, and does not have a meaning or role that is distinguished from each other by itself.

A vehicle wheel 10 of the present invention will be described with reference to FIGS. 1 to 9. 1 and 2 are views showing the appearance of the vehicle wheel 10 provided with the sound-absorbing module 100 of the present invention, and FIGS. 3 and 4 are the sound-absorbing module 100 on which the air layer of the present invention is formed. It is a view showing the state of the vehicle wheel 10, Figures 5 and 6 are views showing the appearance of the vehicle wheel 10 is provided by being divided into the sound-absorbing module 100 of the present invention. And Figures 7 to 9 are views showing the appearance of the vehicle wheel 10 provided to surround the housing 300 of the present invention the sound-absorbing module (100).

The vehicle wheel 10 of the present invention has a spoke 30, a rim 50 connected to the circumference of the spoke 30, and at least a part thereof is formed in a porous structure, and the outer circumferential surface of the rim 50 And a sound-absorbing module 100 for reducing noise while surrounding at least a portion of the sound-absorbing module 100, wherein different first sound absorbing parts 110 and second sound absorbing parts 130 are stacked and provided. You can do it.

As the sound-absorbing module 100 is formed in a porous structure, the sound waves generated from the vehicle wheel 10 are refracted or reflected by the porous structure, so that the sound waves are mutually canceled, so that noise can be reduced.

The vehicle wheel 10 of the present invention includes a spoke 30, a rim 50 connected to the circumference of the spoke 30, and a sound-absorbing module 100 that is formed in at least a part of a porous structure to reduce noise. ) And a housing 300 that surrounds at least a portion of the sound-absorbing module 100, and the sound-absorbing module 100 or the housing 300 is formed to surround at least a part of the rim 50 It can be characterized by that.

As the sound-absorbing module 100 is formed in a porous structure, sound waves generated from the vehicle wheel 10 may be refracted or reflected by the porous structure, so that the sound waves are mutually canceled, thereby reducing noise.

The housing 300 may be provided to surround at least a portion of the sound-absorbing module 100, and the housing 300 may be formed so that a portion of the housing 300 is in contact with an outer peripheral surface of the rim 50.

The housing 300 is provided so as to surround at least a portion of the sound-absorbing module 100 so as to prevent the sound-absorbing module 100 from being separated from the rotational force of the vehicle wheel 10 accompanying the driving of the vehicle, The sound-absorbing module 100 can maintain a certain shape by the housing 300 itself, so it is easy to attach and detach.

In this case, the sound absorbing module 100 is preferably provided by stacking different first sound absorbing parts 110 and second sound absorbing parts 130.

That is, the sound-absorbing module 100 is provided so that the first sound-absorbing part 110 covers at least a part of the outer peripheral surface of the rim 50, as shown in FIGS. 1 and 2, and the second sound-absorbing part ( 130) is preferably provided to surround at least a part of the outer peripheral surface of the first sound absorbing unit 110.

Specifically, the first sound absorbing part 110 and the second sound absorbing part 130 may be formed as multi-layers each forming a layer in the radial direction of the rim 50.

The first sound-absorbing part 110 has an elasticity of the first sound-absorbing part 110 greater than that of the second sound-absorbing part 130, or the porosity of the first sound-absorbing part 110 is the second sound-absorbing part It is preferably formed to be greater than the porosity of (130).

The elasticity of the first sound-absorbing part 110 is formed to have a large elasticity of the second sound-absorbing part 130, so that the sound absorbing part including the first sound-absorbing part 110 and the second sound-absorbing part 130 of a porous structure It is possible to prevent the module 100 from being easily separated from the housing 300 by the rotational force of the vehicle wheel 10 rotating at a high speed while the vehicle is running.

In addition, since the greater the porosity, the greater the effect of reducing noise. As the porosity of the first sound absorbing unit 110 is formed larger than that of the second sound absorbing unit 130, noise generated from the vehicle wheel 10 For effective sound absorption is possible.

That is, as described above, the sound waves may be refracted or reflected by the porous structure of the sound absorbing module 100 to cancel each other, and the first sound absorbing unit 110 provided to directly contact the vehicle wheel 10 The porosity of) is formed to be larger, so that noise generated from the vehicle wheel 10 can be effectively reduced.

Of course, the first sound absorbing part 110 and the second sound absorbing part 130 may be made of the same material in addition to the different material. In the case of the same material, the first sound absorbing part 110 is thermally compressed. It may be installed on the vehicle wheel 10.

In addition, the sound-absorbing module 100 may be provided with a reinforcing material (not shown) between the first sound-absorbing part 110 and the second sound-absorbing part 130.

The reinforcing material may strengthen the bonding force between the first sound absorbing unit 110 and the second sound absorbing unit 130, and thus prevent the configuration between the sound absorbing modules 100 from being separated from each other with respect to a wheel rotating at a high speed. have.

Specifically, the sound-absorbing module 100 may be provided with various materials capable of thermoforming such as chemical fibers such as PET, PP, GF, or natural fibers such as hemp.

In addition, the rim 50 may include a seating groove 70 that is recessed along an outer circumferential surface of the rim 50 so that the sound-absorbing module 100 or the housing 300 is seated.

When the housing 300 covers a part of the inner surface of the sound-absorbing module 100, the sound-absorbing module 100 or the housing 300 may be seated in the mounting groove 70, and the housing 300 When covering the entire inner surface of the sound-absorbing module 100, the housing 300 may be seated in the seating groove 70.

The housing 300 in which the sound-absorbing module 100 is provided is formed of a seating groove 70 formed in the rim 50 to prevent the sound-absorbing module 100 from being separated from the housing 100. It is preferably formed to correspond to the width or height.

However, specific materials, shapes, etc. of the first sound absorbing unit 110 and the second sound absorbing unit 130 constituting the sound absorbing module 100 are not limited to the above description and may be formed in various ways.

In this case, the sound-absorbing module 100 includes a first protrusion part protruding toward the outer circumferential surface of the rim 50 so that an air gap 170 is formed between the outer circumferential surface of the rim 50 ( 150) may be included.

Specifically, a part of the lower end of the first sound absorbing part 110 protrudes to contact the rim 50 and does not contact the rim 50 by the protruding part 150 of the first sound absorbing part 110. An air layer 170 may be formed between the first sound absorbing part 110 and the rim 50.

That is, as shown in FIG. 3, the first protrusion 150 may be formed such that both ends of the sound absorbing module 100 in the width direction are elongated along the length direction so that the air layer 170 therein connects.

Alternatively, as shown in FIG. 4, the first protrusion 150 may be formed to be spaced apart at predetermined intervals along the length direction so as to be connected in the width direction of the sound absorbing module 100 so that a plurality of internal air layers 170 may be formed.

The air layer 170 may serve to primarily reduce noise generated when the vehicle is driven, and thus may perform multiple noise reduction functions.

Specifically, noise generated from the vehicle wheel 10 enters the sound-absorbing module 100 through the air layer 170, so that the air layer 170 absorbs the primary sound absorption. Since it is in charge of sound absorption, multiple sound absorption effects can be realized.

However, in FIG. 3, the lower end of the first sound absorbing part 110 is expressed as protruding, but the present invention is not limited thereto, and the second sound absorbing part 130 is provided to surround the first sound absorbing part 110. It may be provided in various ways, such as protruding so as to contact the rim 50.

Alternatively, the housing 300 may include a second protrusion partially protruding toward the outer circumferential surface of the rim 50 so that the air layer 170 is formed between the outer circumferential surface of the rim 50.

The second protrusion is formed in the housing 300, not the sound-absorbing module 100, compared to the first protrusion 150, but the position formed is different, but its purpose, function, and effect are similar. I can.

In addition, the sound-absorbing module 100 of the vehicle wheel 10 of the present invention may be divided and provided as shown in FIGS. 5 and 6.

That is, the first sound absorbing unit 110 may be formed by being divided into a plurality of first divided sound absorbing members 115 provided with a predetermined length. In addition, the second sound absorbing unit 130 may be formed by being divided into a plurality of second divided sound absorbing members 135 provided with a predetermined length.

Accordingly, the sound-absorbing module 100 can be installed on the vehicle wheel 10 by being surrounded by the housing 300 while being divided, so that relatively easy attachment and detachment to the vehicle wheel 10 is possible.

In addition, compared to the case where the sound-absorbing module 100 is provided integrally, the porous shape of the sound-absorbing module 100 is not relatively deformed, so that road surface noise can be efficiently absorbed.

The first divided sound-absorbing member 115 and the second divided sound-absorbing member 135 may be partially cut out or formed as separate unit members.

And as the sound-absorbing module 100 is divided, in order to prevent the sound-absorbing effect from being halved because the sound-absorbing module 100 cannot completely cover the rim 50, the length of the second divided sound-absorbing member 135 is It may be formed longer than the length of the one-part sound absorbing member 115.

However, it is not necessarily limited thereto, and the length of the first divided sound absorbing member 115 or the second divided sound absorbing member 135 is the shape of the vehicle wheel 10 or the driving of a vehicle on which the vehicle wheel 10 is mounted. It can be formed in various ways depending on the environment, etc.

That is, the housing 300 may be formed in correspondence with the sound-absorbing module 100 as integrated or divided and provided.

In addition, as shown in FIGS. 7 to 9, at least a part of the outer circumferential surface of the housing 300 may be formed in a mesh, that is, a mesh shape to surround the sound absorbing module 100.

As at least a part of the outer circumferential surface of the housing 300 is formed in a mesh type, it is possible to maximize the sound absorption effect of the sound absorption module 100 and prevent the sound absorption module 100 from being separated from the housing 300. I can.

9 is a view showing the appearance of the vehicle wheel 10 including the sound-absorbing module 100 and the housing 300 coupled by the fastening portion 400 of the present invention.

The vehicle wheel 10 of the present invention may include a fastening part 400.

The fastening part 400 may include a fastening member 400A, a fastening corresponding member 400B, and a bending part 450, and may be formed at an end of the sound absorbing module 100 or the housing 300.

The fastening member 400A and the fastening corresponding member 400B may be configured to fix the sound absorbing module 100 or the housing 300 to the rim 50.

The fastening member 400A may include a fastening type fastening member 410A, a fastening type fastening member 420A, and a buckle type fastening member 430A, and the fastening member 400B is a fastening type fastening member 410B. , May include a fitting-type fastening member (420B) and a buckle-type fastening member (430B).

A detailed fastening method of the fastening member 400A and the fastening corresponding member 400B will be described later.

The bending part 450 may be disposed to surround the suction module 100 or the housing 300 along the circumference thereof.

The bending part 450 may be formed of wire or steel, and in addition, a rigid body whose shape does not change, for example, a metal such as aluminum, copper, or polystyrene (PS), ABS, poly Synthetic resins such as acetal (POM), polyethylene (PE), polyvinyl chloride (PVC), polycarbonate (PC), polycaprolactone (PCL) and polypropylene (PP) may be selected).

11 is a view showing the state of the vehicle wheel 10 including the binding type fastening member (410A) and the binding type fastening corresponding member (410B) of the present invention.

The binding type fastening member 410A may include a binding panel in which one side is fixed and one side that is not fixed is freely movable up and down.

The binding type fastening response member 410B may include a binding response panel in which one side is fixed so that one side of the binding panel can be inserted, and one side that is not fixed is freely movable up and down.

The shape of the binding panel and the binding-response panel may have a shape symmetrical to each other so as to be engaged with each other, and may have a known shape other than a semicircular shape, but a rectangle or a triangle, unlike that shown in FIG. 10.

As the shape of the binding panel and the binding response panel are engaged and coupled, the binding type fastening member 410A and the binding type fastening member 410B may be fastened.

12 and 13 are views showing a vehicle wheel 10 including a fitting type fastening member 420A and a fitting type fastening member 420B according to the present invention.

One side of the fitting type fastening member 420A is protruding so that the body can be inserted into the fitting type fastening member 420B, and the fitting type fastening member 420B can be inserted into the body of the fitting type fastening member 420A. An accommodation space may be formed on one side so that it may be.

The fitting type fastening member 420B may include a separation preventing member capable of preventing separation of the fitting type fastening member 420A after insertion.

When the fitting type fastening member 420A and the fitting type fastening member 420B are pressed to be adjacent to each other, the separation preventing member of the fitting type fastening member 420B is pressed as the fitting type fastening member 420A is inserted. The shape can be changed in any direction.

When the fitting type fastening member 420A and the fitting type fastening member 420B are pressed to move away from each other within a range that does not exceed a preset force, the separation preventing member prevents the fitting type fastening member 420A from being separated. Can be prevented.

When the fitting type fastening member 420A and the fitting type fastening member 420B are pressed to move away from each other within a range exceeding a predetermined force, the separation preventing member may allow the fitting type fastening member 420A to be separated. The shape can be changed in the direction in which it is pressed.

14 is a view showing the appearance of a vehicle wheel including a buckle-type fastening member 430A and a buckle-type fastening member 430B of the present invention.

The debuckle-type fastening member 430A may be formed in a deployment buckle type.

The debuckle-type fastening member 430B is formed on one side and may include a ring connected to the debuckle-type fastening member 430A, and can be fastened with the debuckle-type fastening member 430A through the opening and closing operation of the ring. .

The debuckle-type fastening member 430B may be designed to be able to manipulate the length of the ring for smooth fastening.

15 is a view showing a state of the vehicle wheel 10 including the mesh-type surface sound absorption module 190 of the present invention.

16 is a view showing a cross-section of a vehicle wheel 10 including the mesh-type superficial sound-absorbing module 190 of the present invention.

On the upper surface of the housing 300 or the absorption module 100, a mesh-type superficial absorption module 190 having a mesh or oblique shape may be disposed. The mesh-type superficial sound-absorbing module 190 may be stacked and inserted on the surface of the sound-absorbing module 100 or the housing 300, and may include a stitch method. In addition to this, the mesh-type superficial sound-absorbing module 190 may have other known shapes.

The sound-absorbing module 100 or the housing 300 to which the mesh-type superficial sound-absorbing module 190 is applied may have a trapezoidal cross-section. In addition to this, it may have a cross section of another shape.

This embodiment is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the technical field to which the present invention pertains, various modifications and variations of the present embodiment can be made without departing from the essential characteristics of the present invention. It will be possible.

The present embodiment is not intended to limit the technical idea of the present invention, but to explain it, and thus the scope of the present invention is not limited by the present embodiment.

The scope of protection of the present invention should be interpreted by the claims, and all technical ideas recognized as equivalent or equivalent thereto should be construed as being included in the scope of the present invention.

Claims

This is a vehicle wheel that can reduce noise generated from wheels or road surfaces.

Spokes;

A rim connected to the circumference of the spokes; And

At least a portion is formed in a porous structure, and at least a portion of the outer peripheral surface of the rim

A sound-absorbing module that wraps around and reduces noise;

Including,

The sound absorption module,

A vehicle wheel, characterized in that the first sound absorbing unit and the second sound absorbing unit, which are different from each other, are stacked and provided.
This is a vehicle wheel that can reduce noise generated from wheels or road surfaces.

Spokes;

A rim connected to the circumference of the spokes;

A sound-absorbing module formed in a porous structure to reduce noise; And

A housing that surrounds at least a portion of the rim and surrounds at least a portion of the sound-absorbing module

Including,

The sound-absorbing module or the housing

Formed to surround at least a portion of the rim,

The sound absorption module,

A vehicle wheel, characterized in that the first sound absorbing unit and the second sound absorbing unit, which are different from each other, are stacked and provided.
The method according to claim 1 or 2,

The first sound absorbing unit,

The vehicle wheel, characterized in that the elasticity of the first sound-absorbing part is greater than that of the second sound-absorbing part, or the porosity of the first sound-absorbing part is greater than that of the second sound-absorbing part.
The method according to claim 1 or 2,

The first sound absorbing unit,

It is provided to surround at least a portion of the outer circumferential surface of the rim,

The second sound absorbing unit,

A vehicle wheel, characterized in that it is provided to surround at least a portion of an outer peripheral surface of the first sound absorbing unit.
The method according to claim 1 or 2,

The first sound absorbing unit,

Formed by being divided into a plurality of first divided sound absorbing members provided with a predetermined length

Vehicle wheel, characterized in that.
The method of claim 5,

The second sound absorbing unit,

A vehicle wheel, characterized in that it is formed by being divided into a plurality of second divided sound absorbing members provided with a predetermined length, and the length of the second divided sound absorbing member is formed to be longer than the length of the first divided sound absorbing member.
The method according to claim 1 or 2,

The rim is,

A seating groove recessed along the outer circumferential surface of the rim so that the sound-absorbing module is seated

Vehicle wheel comprising a.
The method according to claim 1 or 2,

The sound absorption module,

A first protrusion part protruding toward the outer peripheral surface of the rim so that an air layer is formed between the outer peripheral surface of the rim;

Vehicle wheel comprising a.
The method of claim 2,

The housing,

A second protrusion part protruding toward the outer peripheral surface of the rim so that an air layer is formed between the outer peripheral surface of the rim;

Vehicle wheel comprising a.
The method of claim 2,

A fastening part disposed along the circumference of the sound-absorbing module or the housing and configured to fix the sound-absorbing module or the housing to the rim

Vehicle wheel, characterized in that it further comprises.
The method of claim 10,

The fastening part,

A bending portion disposed to surround the suction module or the housing;

A fastening member formed at one end of the bending part; And

A fastening response member formed at the other end of the bending part and correspondingly coupled to the fastening member

Vehicle wheel comprising a.
The method of claim 11,

The fastening member,

It includes a fitting-type fastening member including a body formed to protrude from one side,

The fastening corresponding member,

A fitting-type fastening member comprising an accommodation space formed on one side of the fitting-type fastening member so that the body of the fitting-type fastening member can be inserted, and a separation preventing member capable of preventing separation of the inserted body

Vehicle wheel, characterized in that.
The method of claim 11,

The fastening member,

It is a deployment buckle type and includes a debuckle-type fastening member for fastening the sound-absorbing module or the housing,

The fastening corresponding member,

A debuckle-type fastening response member capable of fastening and disengaging through manipulation of a ring connected to the debuckle-type fastening member

Vehicle wheel comprising a.
The method of claim 2,

The sound-absorbing module or the housing,

A mesh-type superficial sound-absorbing module in which at least a part disposed on the surface is formed in a mesh shape

Vehicle wheel comprising a.