CN210970564U

CN210970564U - Tire capable of effectively reducing modal noise of tire cavity

Info

Publication number: CN210970564U
Application number: CN201921937993.XU
Authority: CN
Inventors: 梅方伟; 崔新涛; 翟乃斌; 张增超
Original assignee: Qingyou Suzhou Automobile Technology Co ltd
Current assignee: Qingyou Suzhou Automobile Technology Co ltd
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-07-10
Anticipated expiration: 2029-11-11

Abstract

The utility model discloses an effectively reduce tire of tire cavity modal noise, it includes the tire body, locates this internal and annular of tire inhales the sound cotton and be used for with inhale the sound cotton and prop up and support tightly the supporting component of this internal layer of tire. 1. The noise reduction effect is obvious, and particularly, the noise reduction effect is obvious for single-frequency sound caused by a tire cavity mode and the NVH subjective evaluation feeling effect. 2. Simple structure and low cost. 3. This application falls the technique of making an uproar with current other tires and does not conflict, superposes in order to reach better noise reduction effect. 4. The method is high in universality and can be used for various tire models and brands.

Description

Tire capable of effectively reducing modal noise of tire cavity

Technical Field

The utility model relates to an effectively reduce tire of tire cavity modal noise.

Background

Tire noise is one of the sources of noise in automobiles, and is the dominant source of noise in vehicles at medium to high speeds. For the electric automobile, the problem of tire noise in NVH performance of the electric automobile is prominent because the noise of the internal combustion engine is not masked; the conventional silent tire with the tire cavity modal frequency noise and the high frequency noise as main types of tire noise has the disadvantages of complicated structure, high cost and poor wear resistance.

The current noise reduction modes generally comprise: the purpose of noise reduction of the tire is achieved through the design of the patterns, the structure and the materials of the tire, the cost for designing the patterns, the structure, the materials and the like of the tire is high, and the abrasion resistance of the tire is poor. Or the rigidity and the position of the chassis suspension bush are adjusted to reduce the low-frequency structural sound excited by the road surface, the modification cost is too high, and the setting of other parameters is easily influenced.

Disclosure of Invention

The utility model aims at providing an effectively reduce tire cavity modal noise's tire.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides an effectively reduce tire of tire cavity modal noise, it includes the tire body, locates this internal and annular of tire inhales the sound cotton and be used for with inhale the sound cotton and prop up and support tightly the supporting component of this internal layer of tire.

Preferably, the surface of the sound-absorbing cotton is in a grid shape.

Preferably, the support component is an annular hoop.

Preferably, the support assembly comprises an elastic support bar and a spring clip for connecting two ends of the support bar to form a ring shape.

Preferably, the spring clip is plate-shaped, the two end faces with the largest area are the upper end face and the lower end face, the end face with the smallest area is the front end face and the rear end face, the front end face and the rear end face are respectively provided with one plug hole and two plug holes, and the two end portions of the supporting bar are respectively inserted into the plug holes on the front end face of the spring clip and one of the plug holes on the rear end face of the spring clip.

Furthermore, the plug hole on the front end face is communicated with one plug hole on the rear end face.

Furthermore, after the support bars are connected in an annular shape, the plug-in hole on the rear end face of the spring clamp and closer to the center of the annular support bar is communicated with the plug-in hole on the front end face of the spring clamp.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages: 1. the noise reduction effect is obvious, and particularly, the noise reduction effect is obvious for single-frequency sound caused by a tire cavity mode and the NVH subjective evaluation feeling effect. 2. Simple structure and low cost. 3. This application falls the technique of making an uproar with current other tires and does not conflict, superposes in order to reach better noise reduction effect. 4. The method is high in universality and can be used for various tire models and brands.

Drawings

FIG. 1 is a schematic structural view of a tire;

FIG. 2 is an exploded view of the tire and hub;

FIG. 3 is a schematic structural view of the support assembly;

fig. 4 and 5 are schematic structural views of the spring clip.

Detailed Description

The invention will be further described with reference to examples of embodiments shown in the drawings.

As shown in fig. 1-5, the tire for effectively reducing modal noise of a tire cavity comprises a tire body 1, a ring-shaped sound-absorbing cotton 2 arranged in the tire body 1, and a supporting component 3 for supporting and tightly pressing the sound-absorbing cotton 2 against an inner layer of the tire body 1.

Inhale cotton 2 of sound for two ingredients and inhale cotton 2 of sound, its surface is latticed, and the middle section thickness of its inboard axis direction is less than the thickness at axis direction both ends, forms supporting component 3's installation station on the middle section, makes supporting component 3 more firm support in its inner circle middle section, guarantees the dynamic balance of tire.

The support member 3 may be an annular band. The support assembly 3 in this embodiment comprises a resilient support strip 4, a spring clip 5 for connecting the ends of the support strip 4 such that the support strip 4 forms a loop. The spring clip 5 is plate-shaped, the two end faces with the largest area are the upper end face and the lower end face, the end face with the smallest area is the front end face and the rear end face, the front end face and the rear end face are respectively provided with one plug-in hole 6 and two plug-in holes 6, the two end portions of the supporting bar 4 are respectively inserted into the plug-in holes 6 of the front end face of the spring clip 5 and one of the plug-in holes 6 of the rear end face of the spring clip 5. The plug hole 6 on the front end face is communicated with one plug hole 6 on the rear end face. After the support bar 4 is connected and is the annular, on the rear end face of spring clip 5 and be closer to the annular spliced eye 6 at the center of support bar 4 with spliced eye 6 of the preceding terminal surface of spring clip 5 is linked together. Because the spliced eye 6 of intercommunication is worn to locate by the one end of support bar 4, when the tire takes place deformation, support bar 4 can be better along with tire deformation grow or reduce the diameter, can not take place excessive deformation when the extrusion because both ends are fixed, cause the damage.

The double-component sound absorption cotton 2 has a good sound absorption effect, and the sound absorption effect is mainly reflected in medium-high frequency. By installing the sound-absorbing cotton 2 in the cavity formed between the tire body 1 and the hub 7, a good sound-absorbing effect can be achieved for the radiated sound (the main energy component of the radiated sound is medium-high frequency) of the tire. The cavity mode of the tire can be optimized and changed, and the single-frequency amplified sound caused by the cavity mode of the tire can be well inhibited.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A tire for effectively reducing modal noise of a tire cavity, comprising: it includes the tire body, locates this internal and be annular sound cotton and be used for with inhale the sound cotton and prop up and support tightly the supporting component of tire body inlayer.

2. A tire effective in reducing tire cavity modal noise as in claim 1, wherein: the surface of the sound-absorbing cotton is in a grid shape.

3. A tire effective in reducing tire cavity modal noise as in claim 1, wherein: the supporting component is an annular hoop.

4. A tire effective in reducing tire cavity modal noise as in claim 1, wherein: the support assembly comprises an elastic support bar and a spring clip for connecting two ends of the support bar to form a ring.

5. A tire effective in reducing tire cavity modal noise according to claim 4, wherein: the spring clip is plate-shaped, the two end faces with the largest area are the upper end face and the lower end face, the end face with the smallest area is the front end face and the rear end face, the front end face and the rear end face are respectively provided with one plug hole and two plug holes, and the two end portions of the supporting bar are respectively inserted into the plug holes of the front end face of the spring clip and one of the plug holes of the rear end face of the spring clip.

6. A tire effective in reducing tire cavity modal noise according to claim 5, wherein: the plug hole on the front end face is communicated with one plug hole on the rear end face.

7. A tire effective in reducing tire cavity modal noise according to claim 6, wherein: the support bar is connected and is the annular back, on the rear end face of spring clip and be closer to the annular the spliced eye at the center of support bar with the spliced eye of the preceding terminal surface of spring clip is linked together.