Sound insulation structure for inhibiting resonance noise of tire cavity based on porous material

Abstract

The utility model provides a sound insulation structure for inhibiting resonance noise of a tire cavity based on a porous material, and belongs to the technical field of sound insulation cotton. A sound insulation structure for inhibiting resonance noise of a tire cavity based on a porous material is characterized by comprising a tire main body, the sound insulation cotton is fixedly connected to the inner wall of the tire main body; the multiple large conical holes are formed in the surface of the sound insulation cotton, and the multiple large conical holes are all formed in the surface of the sound insulation cotton; and the plurality of small conical holes are formed in the surface of the sound insulation cotton, and through the scheme, the problem that when an automobile runs at a high speed, low-frequency noise generated by resonance of a tire cavity seriously affects the driving and riding comfort is solved.

Description

Technical Field

[0001] This utility model belongs to the field of sound insulation cotton technology, specifically relating to a sound insulation structure based on porous materials to suppress tire cavity resonance noise. Background Technology

[0002] The technology of suppressing tire cavity resonance noise based on porous materials mainly relies on installing special sound-absorbing materials inside the tire to effectively control noise at specific frequencies. These porous materials typically have complex microstructures that can capture and convert sound wave energy, thereby reducing the vibration and resonance of air inside the cavity. When noise generated during vehicle operation enters the tire cavity, the porous material disperses the sound waves through its numerous tiny channels. Furthermore, due to the friction within the material, the sound wave energy gradually decays and is converted into heat energy, thus reducing noise. To ensure optimal sound absorption, these materials often require customized design based on the noise spectrum characteristics of the specific application environment. This includes adjusting parameters such as density, porosity, and installation method to precisely match the resonance frequency of the tire cavity, thereby effectively suppressing noise problems caused by the interaction between the tire and the ground, ultimately improving the quietness and ride comfort of the vehicle during operation.

[0003] In existing technologies, low-frequency noise generated by tire cavity resonance when a car is traveling at high speed can seriously affect driving comfort. Utility Model Content

[0004] The purpose of this invention is to provide a sound insulation structure based on porous materials to suppress tire cavity resonance noise, aiming to solve the problem in the prior art that the low-frequency noise generated by tire cavity resonance when a car is driving at high speed will seriously affect the driving comfort.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A sound insulation structure for suppressing tire cavity resonance noise based on porous materials, comprising:

[0007] Tire body;

[0008] Sound insulation cotton, which is fixedly connected to the inner wall of the tire body;

[0009] Large conical holes are provided, and all of the large conical holes are opened on the surface of the sound insulation cotton;

[0010] Small conical holes, wherein multiple small conical holes are provided, and all of the multiple small conical holes are opened on the surface of the sound insulation cotton;

[0011] The tread pattern is fixedly connected to the surface of the tire body.

[0012] As a preferred embodiment of this utility model, the sound insulation cotton is made of high-density polyurethane foam with a thickness of five millimeters.

[0013] As a preferred embodiment of this utility model, both the large conical hole and the small conical hole are conical circular holes that are smaller at the top and larger at the bottom.

[0014] In a preferred embodiment of this invention, the large conical hole and the small conical hole are conical holes of different diameters. In a preferred embodiment of this invention, the texture is composed of rhomboid blocks of different sizes.

[0015] As a preferred embodiment of this invention, the tire is made of natural rubber.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this solution, when the vehicle is traveling at high speed, it will generate cavity vibration noise. At this time, the sound insulation cotton fixed to the inner wall of the tire body is made of 5 mm thick high-density polyurethane foam. Because polyurethane foam has a porous structure, it has a good sound absorption effect. These pores can capture sound waves and convert their energy into heat energy, thereby reducing the resonance noise of the cavity inside the tire. In addition, the large and small conical holes are conical round holes with a smaller top and a larger bottom, which makes it easier for sound waves to enter the interior of the sound insulation cotton and reflect and scatter them in the pores at different depths, thereby improving the energy conversion efficiency of sound waves and further enhancing the sound absorption effect.

[0018] 2. In this solution, the large and small conical holes are conical holes with different diameters. The different diameters of the conical holes can change the absorption characteristics of the sound insulation cotton for sound waves of different frequencies. This allows the sound insulation cotton to absorb noise more effectively within a specific frequency range, especially those frequencies that are prone to cavity resonance, thus enhancing the sound absorption effect. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a first-view perspective perspective view of the present invention;

[0021] Figure 2 This is a first sectional view of the present invention;

[0022] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a second sectional view of the present invention;

[0024] Figure 5 This utility model Figure 4 A magnified view of a section at point B in the middle.

[0025] In the picture: 1. Tire body; 2. Sound insulation cotton; 3. Large conical hole; 4. Small conical hole; 5. Tread pattern. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example

[0028] Please see Figures 1-5 The present invention provides the following technical solution:

[0029] A sound insulation structure for suppressing tire cavity resonance noise based on porous materials, comprising:

[0030] Tire body 1;

[0031] Sound insulation cotton 2 is fixedly connected to the inner wall of the tire body 1;

[0032] Large conical holes 3, multiple large conical holes 3 are provided, and multiple large conical holes 3 are opened on the surface of sound insulation cotton 2;

[0033] Small conical holes 4, multiple small conical holes 4 are provided, and multiple small conical holes 4 are opened on the surface of the sound insulation cotton 2;

[0034] Tread 5 is fixedly connected to the surface of the tire body 1.

[0035] In a specific embodiment of this utility model, when the vehicle is traveling at high speed, it generates cavity vibration noise. At this time, the sound insulation cotton 2 fixed to the inner wall of the tire body 1 is made of 5 mm thick high-density polyurethane foam. Because polyurethane foam has a porous structure, it has good sound absorption effect. These pores can capture sound waves and convert their energy into heat energy, thereby effectively reducing the resonance noise of the tire's internal cavity. Furthermore, the large conical hole 3 and the small conical hole 4 are conical circular holes with a smaller top and a larger bottom, making it easier for sound waves to enter the interior of the sound insulation cotton and to be reflected and scattered at different depths of the pores, thereby improving the energy conversion efficiency of the sound waves. The sound absorption effect is enhanced. Furthermore, since the large conical hole 3 and the small conical hole 4 are conical holes with different diameters, the different diameters of the conical holes can change the absorption characteristics of the sound insulation cotton 2 for sound waves of different frequencies. This allows the sound insulation cotton 2 to absorb noise more effectively within a specific frequency range, especially those frequencies that are prone to cavity resonance, which further enhances the sound absorption effect. Moreover, the tread pattern 5 can reduce the rolling noise generated when the tire contacts the road surface. The tire material is made of natural rubber, which has good elasticity and flexibility. The softer tire will absorb more vibrations to reduce the noise transmitted to the vehicle body.

[0036] Please refer to the details. Figures 1-5 The sound insulation cotton 2 is made of high-density polyurethane foam with a thickness of five millimeters. In this embodiment, the polyurethane foam has a good sound absorption effect due to its porous structure. These pores can capture sound waves and convert their energy into heat energy, thereby effectively reducing the resonance noise of the internal cavity of the tire.

[0037] Please refer to the details. Figures 1-5 Both the large conical hole 3 and the small conical hole 4 are conical round holes that are smaller at the top and larger at the bottom.

[0038] In this embodiment, the tapered hole design increases the surface area of ​​the material, making it easier for sound waves to enter the interior of the sound insulation cotton and to be reflected and scattered in the pores at different depths, thereby improving the energy conversion efficiency of sound waves and enhancing the sound absorption effect.

[0039] Please refer to the details. Figures 1-5 The large conical hole 3 and the small conical hole 4 are conical holes with different diameters.

[0040] In this embodiment, the conical holes of different diameters can change the absorption characteristics of the sound insulation cotton for sound waves of different frequencies. This allows the sound insulation cotton 2 to absorb noise more effectively within a specific frequency range, especially those frequencies that are prone to cavity resonance.

[0041] Please refer to the details. Figures 1-5 Pattern 5 is composed of rhombus blocks of different sizes.

[0042] In this embodiment: Tread pattern 5 can reduce rolling noise generated when the tire contacts the road surface.

[0043] Please refer to the details. Figures 1-5 The tires are made of natural rubber.

[0044] In this embodiment: Natural rubber is extracted from rubber trees. It has good elasticity and flexibility, and softer tires absorb more vibrations, thereby reducing noise transmitted to the vehicle body.

[0045] The working principle and usage of this utility model are as follows: When a vehicle is traveling at high speed, it generates cavity vibration noise. At this time, the sound insulation cotton 2, fixed to the inner wall of the tire body 1, is made of 5mm thick high-density polyurethane foam. Because polyurethane foam has a porous structure, it has excellent sound absorption effect. These pores can capture sound waves and convert their energy into heat energy, thereby effectively reducing the resonance noise of the tire's internal cavity. Furthermore, the large conical hole 3 and the small conical hole 4 are conical circular holes, smaller at the top and larger at the bottom, making it easier for sound waves to enter the interior of the sound insulation cotton and reflect and scatter at different depths of the pores, thereby improving the energy conversion efficiency of the sound waves and further enhancing the sound absorption effect. Also, because the large conical hole 3 and the small conical hole 4 are... The use of conical holes of varying diameters alters the absorption characteristics of the sound insulation cotton 2 for different frequencies of sound waves. This allows the sound insulation cotton 2 to more effectively absorb noise within a specific frequency range, especially frequencies that easily cause cavity resonance, further enhancing the sound absorption effect. Furthermore, the tread pattern 5 reduces rolling noise generated when the tire contacts the road surface. The tire is made of natural rubber, which has good elasticity and flexibility; a softer tire absorbs more vibrations, reducing noise transmitted to the vehicle body. Through these solutions, the problem of low-frequency noise generated by tire cavity resonance during high-speed driving, which severely affects driving comfort, is solved.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A sound insulation structure for suppressing tire cavity resonance noise based on a porous material, characterized by: Include: Tire body (1); Sound insulation cotton (2), the sound insulation cotton (2) fixedly connected to the inner wall of tire body (1); Large conical hole (3), the large conical hole (3) is provided with multiple, multiple the large conical hole (3) is all opened in the surface of sound insulation cotton (2); Small conical hole (4), the small conical hole (4) is provided with multiple, multiple the small conical hole (4) is all opened in the surface of sound insulation cotton (2); Ridgeline (5), the ridgeline (5) fixedly connected to the surface of tire body (1).

2. The sound insulation structure based on porous materials for suppressing the cavity resonance noise of a tire according to claim 1, characterized in that: Sound insulation cotton (2) is five millimeters thick high-density polyurethane foam is made.

3. The sound insulation structure based on porous materials for suppressing the cavity resonance noise of a tire according to claim 2, characterized in that: Large conical hole (3) and small conical hole (4) are all small upper and large lower conical round holes.

4. The sound insulation structure based on porous materials for suppressing the cavity resonance noise of a tire according to claim 3, characterized in that: Large conical hole (3) and small conical hole (4) are conical holes with different diameters.

5. The sound insulation structure based on the porous material for suppressing the cavity resonance noise of the tire according to claim 4, characterized in that: Ridgeline (5) is composed of different sizes of diamond blocks.

6. The sound insulation structure based on porous materials for suppressing the cavity resonance noise of a tire according to claim 5, characterized in that: The material of tire is made of natural rubber.

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