CN211519151U - Tire noise reduction device - Google Patents
Tire noise reduction device Download PDFInfo
- Publication number
- CN211519151U CN211519151U CN201922389001.0U CN201922389001U CN211519151U CN 211519151 U CN211519151 U CN 211519151U CN 201922389001 U CN201922389001 U CN 201922389001U CN 211519151 U CN211519151 U CN 211519151U
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- tire
- micro
- perforated plate
- reduction device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Tires In General (AREA)
Abstract
The utility model discloses a tire noise reduction device, which comprises an active noise reduction device, a micro-perforated plate, a connecting layer and a sound absorption layer; the active noise reduction device is arranged in a cavity formed by the tire and the rim, the sound absorption layer is tightly attached to the inner surface of the tire, the micro-perforated plate is arranged above the sound absorption layer, a plurality of through holes are formed in the micro-perforated plate, the connecting layer is arranged between the sound absorption layer and the micro-perforated plate, the connecting layer is of two strip-shaped structures and is arranged on two sides of the sound absorption layer, and a hollow cavity is formed among the connecting layer, the micro-perforated plate and the sound absorption layer; the noise that produces at the tire driving in-process divides two parts to eliminate, and the first part noise passes through microperforated panel to sound absorbing layer, and the second part noise is eliminated through the device of making an uproar that falls in the initiative, through two parts noise elimination, eliminates the inside noise that produces of tire basically, reaches the effect that promotes the travelling comfort, and structural design is simple, and noise reduction is effectual, has higher popularization and practical application and worth.
Description
Technical Field
The utility model relates to a tire noise reducing device, the interior noise reduction of tire cavity of mainly used radial tire driving in-process.
Background
Noise with different frequencies is generated in the running process of a tire, in order to reduce the noise in the running process of the tire, structural design and formula design of large tire manufacturers are taken as the first solution, but the current technical means cannot eliminate or reduce the noise with various frequencies in the tire in the running process of the tire, for example, in the prior art, sound-absorbing cotton is adopted for the internal fitting of the tire, the specific method is that the sound-absorbing cotton which is rectangular (or in other shapes) and is provided with strong glue on one surface is fitted to the inner surface (usually the inner surface corresponding to the running position of the tire) of a finished tire, for example, the cavity noise-reducing tire disclosed by the invention patent with the application publication number of (CN 107972418A), but the existing sound-absorbing cotton fitting mode is single in noise control, the sound-absorbing cotton is not ideal in sound-absorbing effect, and cannot greatly reduce the internal noise of the tire in the running process, the noise reduction effect is not good, so a method for eliminating noise generated by air vibration in a hollow cavity in the running process of a tire is needed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the inside noise that produces of present tire driving in-process tire, provide a tire noise reducing mechanism, noise when reducing and going improves the tire and uses the travelling comfort.
The utility model discloses an adopt following technical scheme to realize: a tire noise reduction device comprises an active noise reduction device, a micro-perforated plate, a connecting layer and a sound absorption layer;
the active noise reduction device is arranged in a cavity formed by the tire and the rim, namely a plurality of dynamic noise reduction devices are arranged on the inner side of the rim; the inner surface setting of the tire is closely laminated to the sound absorbing layer, the micro-perforated plate is arranged above the sound absorbing layer, a plurality of through holes are formed in the micro-perforated plate, the connecting layer is arranged between the sound absorbing layer and the micro-perforated plate, the connecting layer is of two long strip-shaped structures and is arranged on two sides of the sound absorbing layer, and a hollow cavity is formed among the connecting layer, the micro-perforated plate and the sound absorbing layer.
Furthermore, the micro-perforated plate is made of a flexible sound-absorbing material, the aperture ratio of the micro-perforated plate is 20% -80%, and the thickness of the micro-perforated plate is 0.2mm-1.5 mm.
Furthermore, the diameter of the through holes is 0.1mm-0.5mm, and the distance between the through holes is 0.5mm-3 mm.
Furthermore, the distance between the micro-perforated plate and the sound absorption layer is 1mm-30 mm.
Furthermore, in order to further increase the sound absorption coefficient, the number of layers of the micro-perforated plate is at most two.
Furthermore, the active noise reduction device comprises a plurality of active noise reduction devices which are respectively arranged in the directions of 0 degrees, 90 degrees, 180 degrees and 270 degrees of the rim.
Further, the width of the sound absorption layer is equal to the width of the driving surface of the tire.
Furthermore, the micro-perforated plate is made of broadband sound-absorbing materials.
Compared with the prior art, the utility model discloses an advantage lies in with positive effect:
the device that the noise that this scheme provided reduces, through the combination design of the active noise reduction device and microperforated panel and sound absorbing layer, use the brand-new principle of making an uproar of falling, the noise that produces at the tire driving in-process divides two parts to eliminate, the first part noise passes through microperforated panel to sound absorbing layer, the second part noise is eliminated through the active noise reduction device, through two parts noise elimination, eliminate the inside noise that produces of tire basically, reach the effect that promotes travelling comfort, structural design is simple, the noise reduction effect is good, higher popularization and practical application are worth.
Drawings
Fig. 1 is a schematic diagram of a specific installation position of a tire noise reduction device according to an embodiment of the present invention, wherein (a) is a schematic diagram of a side view structure of a tire, and (b) is a schematic diagram of a cross-sectional structure of the tire;
fig. 2 is a schematic view of an active noise reduction device according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a micro-perforated plate according to an embodiment of the present invention;
fig. 4 is a schematic view of an installation position of an active noise reduction device according to an embodiment of the present invention;
fig. 5 is a schematic view of the installation positions of the micro-perforated plate, the connection layer and the sound absorption layer according to the embodiment of the present invention;
wherein, 1, an active noise reduction device; 2. a micro-perforated plate; 21. a through hole; 3. a connecting layer; 4. a sound absorbing layer; 5. a rim; 6. a tire tread.
Detailed Description
In order to clearly understand the above objects and advantages of the present invention, the following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings:
a tire noise reduction device is shown in figure 1 and comprises an active noise reduction device 1, a micro-perforated plate 2, a connecting layer 3 and a sound absorption layer 4, wherein the sound absorption layer 4 is tightly adhered to the inner surface of a tire tread 6 through gum, the width of the sound absorption layer is close to the width of a running surface of a tire, the two sides of the upper surface of the sound absorption layer 4 are respectively provided with the connecting layer 3 which is adhered to the upper surface of the sound absorption layer in a whole circle, the micro-perforated plate 2 and the sound absorption layer 4 are separated by the connecting layers 3 at the two sides, a certain distance is reserved between the micro-perforated plate 2 and the sound absorption layer 4, the aperture and the perforation rate can be adjusted according to different tire specifications, 4 active noise reduction devices 1 are arranged at a cavity formed by the tire and a rim 5, namely the inner side of the rim 5, and the active noise reduction devices 1, the micro-perforated plate 2 and the sound absorption layer 4 jointly.
The active noise reduction device can purchase mature products, is known relatively mature technical equipment, has the working principle as shown in figure 2, generally comprises a power supply, a noise reduction receiving device, an audio processing device and a noise reduction signal generating device, adopts the principle of sound wave cancellation, receives the audio frequency of noise through the noise receiving device, analyzes the waveform through the audio processing device, generates a new noise with the same frequency and opposite phase, and emits the new noise through the noise reduction signal generating device, and the sound waveform is superposed to further cancel the environmental noise in the tire, so that the purpose of eliminating the noise is achieved.
In this embodiment, referring to fig. 3, the microperforated panel 2 is made of a broadband sound absorbing material, the sound absorbing material may be a polyester fiber sound absorbing panel, a polyurethane panel, a rubber, a polymer composite material, etc., the thickness of the sound absorbing material is generally 0.2mm to 1.5mm, preferably 0.5mm, the sound absorbing material is made of a flexible material, the hole opening ratio is generally 20% to 80%, in this embodiment, 68% is preferred, the diameter of the through hole 21 is generally 0.1mm to 0.5mm, preferably 0.2mm, the distance between the through holes 21 is generally 0.5mm to 3mm, preferably 1.5mm, and the distance between the microperforated panel 2 and the sound absorbing layer 4 is generally 1mm to 30mm, wherein, in order to further increase the sound absorption coefficient, the number of microperforated panels can be increased, and the interlayer distance is generally 1mm to 20mm, preferably 10mm, but generally not more than.
In the specific implementation, the following modes are adopted:
(1) install the initiative and fall the noise apparatus on the rim additional:
four active noise reduction devices are additionally arranged on a rim, the installation positions are as shown in fig. 4, and a total of 4 active noise reduction devices are uniformly installed in the directions of 0 degrees, 90 degrees, 180 degrees and 270 degrees of the rim, and each active noise reduction device comprises a power supply device and a whole set of active noise reduction equipment, such as DA7402 and DA7401 of Dialog semiconductor company, or TM2326 of a micro light source.
(2) Installing a micro-perforated plate and a sound absorption layer:
the inner surface of the running surface of the tire is cleaned, the sound absorption layer is firstly applied, then the connecting layers with the width of 10mm are respectively covered on the two sides of the sound absorption layer, wherein the connecting layers can use a plastic film with proper thickness as a base material, elastic pressure-sensitive adhesive or resin pressure-sensitive adhesive is evenly coated on the strip-shaped adhesive tape made of the base material, the two sides of the connecting layers are provided with a strong adhesive layer, finally, the micro-perforated plate is applied to the other side of the connecting layer, the connecting layers on the two sides are ensured to be tightly attached to the micro-perforated plate layer, the installation is completed, and the structure of the micro-perforated plate, the connecting layers and the sound absorption layer after the installation is shown.
The device that the noise that this scheme provided reduces uses the brand-new principle of making an uproar of falling, and the noise that produces at the tire driving in-process divides two parts to eliminate, and the first part noise passes through microperforated panel to sound absorbing layer, and the second part noise is eliminated through the device of making an uproar of falling voluntarily, through two parts noise elimination, eliminates the inside noise that produces of tire basically, reaches the effect that promotes the travelling comfort.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. A tire noise reduction device is characterized by comprising an active noise reduction device (1), a micro-perforated plate (2), a connecting layer (3) and a sound absorption layer (4);
the active noise reduction device (1) is arranged in a cavity formed by a tire tread (6) and a rim (5), namely a plurality of dynamic noise reduction devices (1) are arranged on the inner side of the rim (5); the inner surface setting of sound absorbing layer (4) inseparable laminating tire tread (6), microperforated panel (2) set up in the top of sound absorbing layer (4), be provided with a plurality of through-holes (21) on microperforated panel (2), articulamentum (3) set up between sound absorbing layer (4) and microperforated panel (2), articulamentum (3) are two long strip structure, set up the both sides in sound absorbing layer (4), and at articulamentum (3), form a cavity between microperforated panel (2) and sound absorbing layer (4).
2. The tire noise reduction device according to claim 1, wherein: the micro-perforated plate (2) is made of a flexible sound-absorbing material, the aperture ratio of the micro-perforated plate is 20% -80%, and the thickness of the micro-perforated plate (2) is 0.2mm-1.5 mm.
3. The tire noise reduction device according to claim 1, wherein: the diameter of the through holes (21) is 0.1mm-0.5mm, and the distance between the through holes (21) is 0.5mm-3 mm.
4. The tire noise reduction device according to claim 1, wherein: the distance between the micro-perforated plate (2) and the sound absorption layer (4) is 1mm-30 mm.
5. The tire noise reduction device according to claim 1, wherein: the number of layers of the micro-perforated plate (2) is at most two.
6. The tire noise reduction device according to claim 1, wherein: the active noise reduction device (1) comprises 4 active noise reduction devices which are respectively arranged on the directions of 0 degree, 90 degrees, 180 degrees and 270 degrees of a rim.
7. The tire noise reduction device according to claim 1, wherein: the width of the sound absorption layer (4) is equal to the width of the driving surface of the tire.
8. The tire noise reduction device according to claim 1, wherein: the micro-perforated plate (2) is made of broadband sound-absorbing materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389001.0U CN211519151U (en) | 2019-12-27 | 2019-12-27 | Tire noise reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389001.0U CN211519151U (en) | 2019-12-27 | 2019-12-27 | Tire noise reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211519151U true CN211519151U (en) | 2020-09-18 |
Family
ID=72467001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922389001.0U Active CN211519151U (en) | 2019-12-27 | 2019-12-27 | Tire noise reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211519151U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801271A (en) * | 2022-05-16 | 2022-07-29 | 无锡市源懋电子科技有限公司 | Automatic cotton device that pastes of tire |
-
2019
- 2019-12-27 CN CN201922389001.0U patent/CN211519151U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114801271A (en) * | 2022-05-16 | 2022-07-29 | 无锡市源懋电子科技有限公司 | Automatic cotton device that pastes of tire |
| CN114801271B (en) * | 2022-05-16 | 2023-09-26 | 无锡市源懋电子科技有限公司 | Automatic cotton device that pastes of tire |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2002083461A1 (en) | Acoustic tile and its use in vehicle sound proofing | |
| CN211519151U (en) | Tire noise reduction device | |
| JP3498085B1 (en) | Ultralight soundproof material | |
| CN110733298B (en) | Tire noise reduction device | |
| EP1826750A3 (en) | Overlay and panel with noise absorbing properties and method for its manufacture | |
| WO2003095267A3 (en) | Sound absorbing panel for a vehicle and its method of manufacture | |
| CN201970936U (en) | Vibration damping and noise reduction gasket structure used for automobile | |
| US20120145479A1 (en) | Sound absorbing body | |
| DE69213255D1 (en) | VIBRATION AND SOUND ABSORBING SPACERS FOR VEHICLE BRAKES AND METHOD FOR PRODUCING A TAPE FOR THE PRODUCTION OF SUCH SPACERS | |
| CN208968026U (en) | sound insulation structure and air conditioner | |
| CN105275782B (en) | A kind of compressor of air conditioner oise damping means | |
| CN214822387U (en) | Tire silence is cotton | |
| EP3926622A1 (en) | Sound reflection structure | |
| CN202071778U (en) | Noise-reducing water-blocking film of automobile | |
| JP3530522B1 (en) | Ultralight soundproofing material | |
| CN201712676U (en) | Noise reduction type automobile wheel casing | |
| JP2005239014A (en) | Floor plate for rolling stock | |
| CN203267943U (en) | Metal plate of roof inside automobile | |
| JPH1088689A (en) | Sound absorption structural body partially sticking sound absorbing film thereon | |
| CN201646597U (en) | Noise reducing structure of automobile roof | |
| CN206749185U (en) | A kind of sound insulating pad | |
| CN218315593U (en) | Prefabricated plate structure of vehicle-mounted audiometric room | |
| CN212295138U (en) | Combined cloth art acoustic board for indoor noise reduction and sound absorption | |
| JPS6353145A (en) | Automobile ceiling trimming with damping layer | |
| CN212827236U (en) | Effectual aluminum honeycomb core material gives sound insulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |