CN203318533U - Vehicle body noise reduction floor structure - Google Patents
Vehicle body noise reduction floor structure Download PDFInfo
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- CN203318533U CN203318533U CN2013203188526U CN201320318852U CN203318533U CN 203318533 U CN203318533 U CN 203318533U CN 2013203188526 U CN2013203188526 U CN 2013203188526U CN 201320318852 U CN201320318852 U CN 201320318852U CN 203318533 U CN203318533 U CN 203318533U
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- sound absorbing
- sound
- absorbing layer
- vehicle body
- floor
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Abstract
The utility model discloses a vehicle body noise reduction floor structure. The vehicle body noise reduction floor structure comprises a floor body with a plurality of lightening holes, the floor body is provided with a noise reduction structure, the noise reduction structure comprises sound insulation layers and sound absorbing layers which are arranged alternately, the floor body closely adheres to the sound absorbing layers, and the sound insulation layers are welded to the sound absorbing layers. The vehicle body noise reduction floor structure is high in production efficiency and low in labor intensity of workers.
Description
Technical field
The utility model relates to a kind of body platform, especially relates to a kind of floor panel structure with decrease of noise functions.
Background technology
The internal car noise level is one of important indicator of reflection manned vehicle performance quality, and how actv. isolation community noise becomes the long-term problem of thinking of each manned vehicle enterprise into the car.In numerous community noises, from the road on ground, making an uproar is to make an uproar and mainly be passed in car by body platform in the most important factor ，Er road that affects the internal car noise level.In addition, for the consideration to the vehicle body loss of weight, when carrying out the design of body platform, tend to offer the lightening hole that various diameter differ on body platform, as Chinese patent Granted publication number: 202413926U, a kind of front floor panel structure is disclosed, be located at vehicle body crew module front portion, comprise front floor and four installation crossbeams, four the both sides that crossbeam is located at centre gangway symmetrically are installed, four crossbeam are installed and are comprised the left front beam in front floor, the left back beam in front floor, the right back beam of the right front beam in front floor and front floor.For reducing pass-by noise by these lightening holes into the car, damping blanking cover with absorption of noise function can be set on lightening hole, though minimizing pass-by noise that like this can be to a certain degree into the car, but because body platform lightening hole quantity is more, encapsulating the floor lightening hole by the sticky note mode of blanking cover certainly will will take a long time, greatly reduce production efficiency, not only workman's labour intensity is also higher, and noise reduction is also poor.
The utility model content
The utility model be for overcome prior art adopt blanking cover one by one shutoff body platform lightening hole cause the deficiency that production efficiency is lower, noise reduction is poor, provide that a kind of production efficiency is higher, labor strength is lower and noise reduction vehicle body noise-reducing floor structure preferably.
To achieve these goals, the utility model is by the following technical solutions:
A kind of vehicle body noise-reducing floor structure of the present utility model, comprise the floor body with some lightening holes, described floor body is provided with denoising structure, described denoising structure comprises sound isolating layer and the sound absorbing layer of alternative arrangement, fit tightly between described floor body and sound absorbing layer, weld between described sound isolating layer and sound absorbing layer.Sound absorbing layer itself has certain sound absorbing power, after floor body and sound absorbing layer laminating, also can subdue the vibrational energy of steel plate.Because adopting itself density of different materials, sound isolating layer and sound absorbing layer have difference, alternative arrangement by sound isolating layer and sound absorbing layer, formed density gradient, better to the fade performance of acoustic wave energy, the degree of difficulty that sound wave passes through improves greatly, has therefore significantly improved the soundproof effect of body platform.When actual production, only need cut according to the size of body platform sound isolating layer and the sound absorbing layer be complementary with it, both are welded and fixed, welding manner be take ultrasonic welding as good, the sound absorbing layer one side is fitted with body platform, so significantly reduce the time of encapsulation body platform lightening hole, thereby enhance productivity.
As preferably, described sound isolating layer and sound absorbing layer all are wedge shape, and the key groove of sound isolating layer and sound absorbing layer is identical.Like this, the cross-sectional plane of sound isolating layer changes, and profile is all not identical everywhere, can reduce to resonate between sound isolating layer.
As preferably, the contact surface undulate between described sound isolating layer and sound absorbing layer.Area of contact between sound isolating layer and sound absorbing layer increases, and makes the sound-absorbing effect of sound absorbing layer better.
As preferably, described sound isolating layer adopts the EVA material to make.Like this, sound isolating layer can completely cut off or absorb airborne acoustic energy, has soundproof effect preferably.
As preferably, described sound absorbing layer adopts acoustical cotton to make.Acoustical cotton is loose and porous structure, is conducive to the absorption to acoustic wave energy.
As preferably, between described sound isolating layer and sound absorbing layer, adjacent welds is spaced apart 150 ~ 250mm.Like this, the reliability connected between sound isolating layer and sound absorbing layer can be guaranteed, higher production efficiency can be guaranteed again.
Therefore, the utlity model has following beneficial effect: (1) production efficiency is higher, and labor strength reduces greatly; (2) noise reduction is better.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
In figure, sound isolating layer 1, sound absorbing layer 2, floor body 3, lightening hole 3a.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
In embodiment as shown in Figure 1, a kind of vehicle body noise-reducing floor structure, comprise floor body 3, is provided with some lightening hole 3a on floor body, the shape size difference of lightening hole.Floor body is provided with denoising structure, and denoising structure comprises sound isolating layer 1 and sound absorbing layer 2, and both alternative arrangements form.Fix by ultrasonic welding between sound isolating layer and sound absorbing layer, fit tightly between floor body and sound absorbing layer.In Fig. 1, be respectively from top to bottom sound isolating layer, sound absorbing layer, sound isolating layer, sound absorbing layer and floor body, wherein sound isolating layer and sound absorbing layer all are wedge shape, and the key groove of sound isolating layer and sound absorbing layer is identical, after sound absorbing layer and sound isolating layer fit like this, upper and lower surface is just parallel.The sound absorbing layer of top and the sound absorbing layer of below, both reversed arrangement.In addition, the contact surface undulate between sound isolating layer and sound absorbing layer.Sound isolating layer adopts the EVA material to make, and sound absorbing layer adopts acoustical cotton to make, and the density of sound isolating layer and sound absorbing layer differs larger, can improve the assimilation effect of acoustic wave energy.
When producing, size and shape according to floor body, produce the sound absorbing layer and the sound isolating layer that are complementary with it, by ultrasonic welding method, sound absorbing layer is welded on sound isolating layer, between sound isolating layer and sound absorbing layer adjacent welds be spaced apart 200mm, then the sound absorbing layer one side is fitted tightly and gets final product with the base plate body.
Claims (6)
1. a vehicle body noise-reducing floor structure, comprise the floor body (3) with some lightening holes (3a), it is characterized in that, described floor body (3) is provided with denoising structure, described denoising structure comprises sound isolating layer (1) and the sound absorbing layer (2) of alternative arrangement, fit tightly welding between described sound isolating layer (1) and sound absorbing layer (2) between described floor body (3) and sound absorbing layer (2).
2. vehicle body noise-reducing floor structure according to claim 1, is characterized in that, described sound isolating layer (1) and sound absorbing layer (2) all are wedge shape, and the key groove of sound isolating layer and sound absorbing layer is identical.
3. vehicle body noise-reducing floor structure according to claim 1, is characterized in that, the contact surface undulate between described sound isolating layer (1) and sound absorbing layer (2).
4. according to claim 1 or 2 or 3 described vehicle body noise-reducing floor structures, it is characterized in that, described sound isolating layer (1) adopts the EVA material to make.
5. according to claim 1 or 2 or 3 described vehicle body noise-reducing floor structures, it is characterized in that, described sound absorbing layer (2) adopts acoustical cotton to make.
6. according to claim 1 or 2 or 3 described vehicle body noise-reducing floor structures, it is characterized in that, between described sound isolating layer (1) and sound absorbing layer (2), adjacent welds is spaced apart 150 ~ 250mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203188526U CN203318533U (en) | 2013-06-04 | 2013-06-04 | Vehicle body noise reduction floor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203188526U CN203318533U (en) | 2013-06-04 | 2013-06-04 | Vehicle body noise reduction floor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203318533U true CN203318533U (en) | 2013-12-04 |
Family
ID=49657906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203188526U Expired - Lifetime CN203318533U (en) | 2013-06-04 | 2013-06-04 | Vehicle body noise reduction floor structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN203318533U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191768A (en) * | 2014-08-26 | 2014-12-10 | 上海爱逸建筑科技有限公司 | Rigid polyurethane and polystyrene foam compound type energy-absorbing material |
| CN107053801A (en) * | 2017-04-27 | 2017-08-18 | 广西钦州胜腾商务有限公司 | A kind of acoustic material |
| CN107762106A (en) * | 2017-10-20 | 2018-03-06 | 苏州西玛家具股份有限公司 | A kind of silencing floor |
| CN109109412A (en) * | 2018-08-24 | 2019-01-01 | 芜湖跃飞新型吸音材料股份有限公司 | A kind of automobile-used sound insulation resilient cushion of disposal molding and preparation method thereof |
-
2013
- 2013-06-04 CN CN2013203188526U patent/CN203318533U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191768A (en) * | 2014-08-26 | 2014-12-10 | 上海爱逸建筑科技有限公司 | Rigid polyurethane and polystyrene foam compound type energy-absorbing material |
| CN107053801A (en) * | 2017-04-27 | 2017-08-18 | 广西钦州胜腾商务有限公司 | A kind of acoustic material |
| CN107762106A (en) * | 2017-10-20 | 2018-03-06 | 苏州西玛家具股份有限公司 | A kind of silencing floor |
| CN109109412A (en) * | 2018-08-24 | 2019-01-01 | 芜湖跃飞新型吸音材料股份有限公司 | A kind of automobile-used sound insulation resilient cushion of disposal molding and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200618 Address after: 610100 No.1, floor 1, building 2, No.366, East 7th Road, Checheng, Chengdu Economic and Technological Development Zone, Sichuan Province Co-patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee after: Chengdu Geely Automobile Manufacturing Co.,Ltd. Address before: 610000 No.366 Checheng East 7th Road, Longquanyi District, Chengdu City, Sichuan Province Co-patentee before: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee before: CHENGDU GAOYUAN AUTOMOBILE INDUSTRY Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131204 |
|
| CX01 | Expiry of patent term |