CN207157120U - A kind of fascia acoustical cotton - Google Patents
A kind of fascia acoustical cotton Download PDFInfo
- Publication number
- CN207157120U CN207157120U CN201721204236.2U CN201721204236U CN207157120U CN 207157120 U CN207157120 U CN 207157120U CN 201721204236 U CN201721204236 U CN 201721204236U CN 207157120 U CN207157120 U CN 207157120U
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- Prior art keywords
- sound
- acoustical cotton
- absorbing
- leading note
- radiating cavity
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a kind of fascia acoustical cotton, including acoustical cotton body, the acoustical cotton body includes being mutually bonded in sound-absorbing surface layer and sound-absorbing bottom together, side away from sound-absorbing bottom on the sound-absorbing surface layer is provided with several equally distributed arc-shaped convex, on the sound-absorbing surface layer leading note groove is equipped between the adjacent projection of each two, the cross section of the leading note groove is trapezium structure, the diameter of leading note channel opening is less than the diameter of leading note trench bottom, one layer of puigging is additionally provided with the inwall of the leading note groove, the puigging is made up of sound control glass, several equally distributed cooling mechanisms are additionally provided with the acoustical cotton body.The utility model is reasonable in design, and radiating effect can also be improved while can reaching good absorbing sound and lowering noise effect, is advantageous to the popularization and application of the marketization.
Description
Technical field
It the utility model is related to technical field of automotive trim, and in particular to a kind of fascia acoustical cotton.
Background technology
Automobile is surveyed under instrument and decorates sound-isolating sponge, is assemblied in the following side of fascia, plays a part of sound insulating and absorbing,
Traditional automobile is surveyed decoration sound-isolating sponge under instrument board and is made up of sound insulation cover plate, sound-isolating sponge main body and foam-rubber cushion, wherein sound insulation
Sponge cover plate rolls non-woven fabrics and solidification felt using pad and pad felt non-woven fabrics trilaminate material is combined, and sound-isolating sponge main body is using pad
Rolling non-woven fabrics reinforcingization felt adds two-way non-woven fabrics trilaminate material to be combined, and foam-rubber cushion is made of PU materials, using above-mentioned material
Though material can realize sound-absorbing effect, due to solidification felt in contain VOC (VOC), cause part after entrucking
Peculiar smell is remained in passenger compartment, whole automobile is filled with peculiar smell, environment inside car is deteriorated, and the connection of acoustical cotton overall structure is not
It is enough firm, and whole acoustical cotton is that each part is formed by simple bonding, and structure is excessively simple, absorbing sound and lowering noise effect
Fruit is undesirable, it is impossible to meets the needs of people；Also, current most of producers often only focus on the sound-absorbing effect of acoustical cotton,
But for the acoustical cotton for fascia, its radiating effect is also extremely important, but sound-absorbing of the prior art
Cotton is reaches more preferable absorbing sound and lowering noise effect, and the heat dispersion that frequently can lead to acoustical cotton is greatly reduced, so as to be unfavorable for instrument
Intralamellar part radiates, and has a strong impact on the service life of element on instrument board.
Utility model content
The utility model is in order to solve the above problems, there is provided and it is a kind of reasonable in design, good sound-absorbing drop can be reached
The fascia acoustical cotton of radiating effect can also be improved while effect of making an uproar.
The utility model adopts the following technical scheme that：
A kind of fascia acoustical cotton, including acoustical cotton body, the acoustical cotton body include being mutually bonded in one
The sound-absorbing surface layer and sound-absorbing bottom risen, the side away from sound-absorbing bottom on the sound-absorbing surface layer are provided with several equally distributed circles
Arc convex, is equipped with a leading note groove on the sound-absorbing surface layer between the adjacent projection of each two, the leading note groove it is transversal
Face is trapezium structure, and the diameter of leading note channel opening is less than the diameter of leading note trench bottom, one is additionally provided with the inwall of the leading note groove
Layer puigging, the puigging are made up of sound control glass, and several equally distributed radiatings are additionally provided with the acoustical cotton body
Mechanism.
As a kind of optimal technical scheme of the present utility model, the cooling mechanism dissipates including the first radiating cavity, second
Hot cavity and interface channel, the first radiating cavity and the second radiating cavity are connected by interface channel, and described first dissipates
Hot cavity, which is arranged in sound-absorbing surface layer, corresponds to raised opening position, described raised provided with several and the first radiating cavity phase
The first through hole of connection, the second radiating cavity and interface channel are also disposed in sound-absorbing surface layer, right on the sound-absorbing bottom
Several the second through holes being connected with the second radiating cavity should be provided with the opening position of the second radiating cavity.
As a kind of optimal technical scheme of the present utility model, the first radiating cavity is spherical structure, described second
Radiating cavity is hemispherical dome structure, and the diameter of the second radiating cavity is less than the diameter of the first radiating cavity.
As a kind of optimal technical scheme of the present utility model, the quantity of the first through hole and the second through hole is 2~6
It is individual.
The beneficial effects of the utility model are：
1st, the utility model is reasonable in design, and being set using arc-shaped convex can effectively be strengthened in conjunction with leading note groove
The contact area of acoustical cotton and noise, the rebound rate of noise is improved, so as to improve the abatement effect of noise, strengthen the suction of acoustical cotton
Sound noise reduction；
2nd, the cooling mechanism that the utility model is set on acoustical cotton body can not only be improved effectively inside instrument board
Radiating effect, additionally it is possible to further improve acoustical cotton sound-deadening and noise-reducing effect.
Brief description of the drawings
Fig. 1 is a kind of structural representation of fascia acoustical cotton of the utility model；
Symbol description in figure：
Sound-absorbing surface layer 1, sound-absorbing bottom 2, projection 3, leading note groove 4, puigging 5, the first radiating cavity 6, the second radiating cavity
7, interface channel 8, first through hole 9, the second through hole 10.
Embodiment
The utility model row is further described presently in connection with accompanying drawing.
As shown in figure 1, a kind of fascia acoustical cotton, including acoustical cotton body, the acoustical cotton body include phase
Sound-absorbing surface layer 1 and sound-absorbing bottom 2 together is mutually adhered to, the side away from sound-absorbing bottom 2 is provided with some on the sound-absorbing surface layer 1
Individual equally distributed arc-shaped convex 3, the projection 3 of the circular arc are interconnected to form wavy shaped configuration, the sound-absorbing surface layer 1
It is equipped with a leading note groove 4 between the adjacent projection 3 of upper each two, the cross section of the leading note groove 4 is trapezium structure, leading note groove
The diameters of 4 openings are less than the diameter of the bottom of leading note groove 4, are additionally provided with one layer of puigging 5 on the inwall of the leading note groove 4, it is described every
Sound-absorbing layer 5 is made up of the sound control glass that can have certain stop and consumption to noise, is additionally provided with the acoustical cotton body
Several equally distributed cooling mechanisms；
The cooling mechanism includes the first radiating cavity 6, second radiating cavity 7 and interface channel 8, and first radiating is empty
Chamber 6 is connected with the second radiating cavity 7 by interface channel 8, and the first radiating cavity 6 is arranged in sound-absorbing surface layer 1 corresponding
In the opening position of projection 3, described raised 3 are provided with four radiates the first through hole 9 that are connected of cavity 6 with first, and described second
Radiating cavity 7 and interface channel 8 are also disposed in sound-absorbing surface layer 1, and the second radiating cavity 7 is corresponded on the sound-absorbing bottom 2
Opening position is provided with five the second through holes 10 being connected with the second radiating cavity 7；
The first radiating cavity 6 is spherical structure, and the second radiating cavity 7 is hemispherical dome structure, and described second dissipates
The diameter of hot cavity 7 is less than the diameter of the first radiating cavity 6, can effectively increase cavity inside using spherical structure setting
With the contact-impact area of noise, so as to increase the collision frequency of noise, strengthen the effect of sound-deadening and noise-reducing；Simultaneously using different
Diameter, which is set, to be cut down to the noise of different frequencies, so as to improve the abatement effect of noise；
Finally it should be noted that：These embodiments are merely to illustrate the utility model without limiting model of the present utility model
Enclose.In addition, to those of ordinary skill in the art, it can also make on the basis of the above description other various forms of
Change changes.There is no necessity and possibility to exhaust all the enbodiments.And thus amplify out obvious
Among changing or changing still in the scope of protection of the utility model.
Claims (4)
1. a kind of fascia acoustical cotton, including acoustical cotton body, it is characterised in that：The acoustical cotton body includes mutual
Sound-absorbing surface layer (1) and sound-absorbing bottom (2) together is adhered to, the side away from sound-absorbing bottom (2) is set on the sound-absorbing surface layer (1)
There are several equally distributed arc-shaped convex (3), be all provided with the sound-absorbing surface layer (1) between the adjacent projection (3) of each two
There is a leading note groove (4), the cross section of the leading note groove (4) is trapezium structure, and the diameter of leading note groove (4) opening is less than leading note groove
(4) diameter of bottom, one layer of puigging (5) is additionally provided with the inwall of the leading note groove (4), the puigging (5) is by sound insulation glass
Glass is made, and several equally distributed cooling mechanisms are additionally provided with the acoustical cotton body.
A kind of 2. fascia acoustical cotton according to claim 1, it is characterised in that：The cooling mechanism includes the
One radiating cavity (6), the second radiating cavity (7) and interface channel (8), the first radiating cavity (6) and the second radiating cavity
(7) it is connected by interface channel (8), the first radiating cavity (6), which is arranged in sound-absorbing surface layer (1), corresponds to raised (3)
Opening position, the projection (3) is provided with several and first radiating cavity (6) first through hole (9) for being connected, described second
Radiating cavity (7) and interface channel (8) are also disposed in sound-absorbing surface layer (1), and the second radiating is corresponded on the sound-absorbing bottom (2)
The opening position of cavity (7) is provided with several the second through holes (10) being connected with the second radiating cavity (7).
A kind of 3. fascia acoustical cotton according to claim 2, it is characterised in that：The first radiating cavity
(6) it is spherical structure, the second radiating cavity (7) be hemispherical dome structure, and the diameter of the second radiating cavity (7) is less than the
The diameter of one radiating cavity (6).
A kind of 4. fascia acoustical cotton according to claim 2, it is characterised in that：The first through hole (9) and
The quantity of second through hole (10) is 2~6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721204236.2U CN207157120U (en) | 2017-09-20 | 2017-09-20 | A kind of fascia acoustical cotton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721204236.2U CN207157120U (en) | 2017-09-20 | 2017-09-20 | A kind of fascia acoustical cotton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207157120U true CN207157120U (en) | 2018-03-30 |
Family
ID=61722643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721204236.2U Active CN207157120U (en) | 2017-09-20 | 2017-09-20 | A kind of fascia acoustical cotton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207157120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107440653A (en) * | 2017-08-17 | 2017-12-08 | 宁波欧琳厨具有限公司 | Noise reduction water tank type dish-washing machine |
-
2017
- 2017-09-20 CN CN201721204236.2U patent/CN207157120U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107440653A (en) * | 2017-08-17 | 2017-12-08 | 宁波欧琳厨具有限公司 | Noise reduction water tank type dish-washing machine |
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