CN210100903U

CN210100903U - Sound insulation structure

Info

Publication number: CN210100903U
Application number: CN201920572657.3U
Authority: CN
Inventors: 徐卫国
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-02-21
Anticipated expiration: 2029-04-25

Abstract

The utility model belongs to sound-proof construction field, concretely relates to sound-proof construction, include: a first plate-like object, a second plate-like object, and a plate-like sound insulating layer; one surface of the plate-shaped sound insulation layer is fixedly connected with a first plate-shaped object, and the other surface of the plate-shaped sound insulation layer is fixedly connected with a second plate-shaped object; the first plate-shaped object and the second plate-shaped object are aramid fiber phenolic aldehyde honeycomb plates. The utility model provides a sound insulation structure, which adopts aramid fiber phenolic aldehyde honeycomb plate to replace the metal plate in the traditional sound insulation structure, can effectively absorb noise, and transmits the absorbed noise to the sound insulation layer to absorb the noise; the aramid fiber phenolic aldehyde honeycomb plates are arranged on the two sides, so that the noise is absorbed on the two sides, and the sound insulation effect is good; in addition, the aramid fiber phenolic aldehyde honeycomb plate is used for the traditional metal plate, so that the weight of the sound insulation structure is reduced.

Description

Sound insulation structure

Technical Field

The utility model belongs to the technical field of the sound insulation is used to the railway, concretely relates to sound-proof structure.

Background

Along with the operating speed of motor car is faster and faster, the inside noise of motor car carriage is also bigger and bigger, seriously influences passenger's the comfort level of taking, in the manufacture process of motor car, can install sound insulation structure in the automobile body of motor car, can effectually reduce the inside noise in motor car operation in-process carriage. Among the existing sound insulation structure, the plates are not firmly attached and the sound insulation effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sound insulation construction for among the sound insulation construction among the solution prior art, laminating jail, the sound insulation effect is poor technical problem between each board. The to-be-solved technical problem of the utility model is realized through following technical scheme:

the embodiment of the utility model provides a sound insulation structure, include: a first plate-like object, a second plate-like object, and a plate-like sound insulating layer; grooves are formed in two plate surfaces of the plate-shaped sound insulation layer, a protrusion is arranged on one surface of the first plate-shaped object, and a protrusion is arranged on one surface of the second plate-shaped object;

the shape of the bulge of the first plate-shaped object is matched with that of the groove on one surface of the plate-shaped sound insulation layer, the first plate-shaped object and the plate-shaped sound insulation layer are clamped through the bulge and the groove, the plate surface of the first plate-shaped object is identical to the plate surface of the plate-shaped sound insulation layer in size and shape, and the plate surface of the first plate-shaped object is aligned, attached and bonded with the plate surface of the plate-shaped sound insulation layer;

the shape of the bulge of the second plate-shaped object is matched with that of the groove on the other surface of the plate-shaped sound insulation layer, the second plate-shaped object is clamped with the plate-shaped sound insulation layer through the bulge and the groove, the plate surface of the second plate-shaped object is identical to the plate surface of the plate-shaped sound insulation layer in size and shape, and the plate surface of the second plate-shaped object is aligned, attached and bonded with the plate surface of the plate-shaped sound insulation layer;

wherein the first plate-shaped object and the second plate-shaped object are aramid fiber phenolic aldehyde honeycomb plates.

In one embodiment, the plate-shaped soundproof layer includes a honeycomb core and a foamed rubber, wherein the honeycomb core is a plate-shaped object including a plurality of hole structures, and the foamed rubber is filled in the hole structures of the honeycomb core.

In one embodiment, a first foam layer is disposed between the first plate-like object and the plate-like sound insulation layer, and a second foam layer is disposed between the second plate-like object and the plate-like sound insulation layer.

In one embodiment, the sound insulation structure further includes at least three first support portions and at least three second support portions, each of the first support portions being disposed between the first plate-like object and the plate-like sound insulation layer, each of the first support portions being in contact with both the first plate-like object and the plate-like sound insulation layer, each of the first support portions penetrating the first foam layer;

each of the second support portions is disposed between the second plate-like object and the plate-like sound insulating layer, and each of the second support portions is in contact with the second plate-like object and the plate-like sound insulating layer, and each of the second support portions penetrates through the second foam layer;

each first supporting part and each second supporting part are of hollow columnar structures.

In a specific embodiment, the sound insulation structure further comprises a fixing portion, a third groove is formed in a side wall of the sound insulation structure, and the third groove penetrates through the first plate-shaped object, the second plate-shaped object and the plate-shaped sound insulation layer; the fixing part is embedded in the third groove.

In one embodiment, the first plate-like object has a thickness of 2.5 to 3mm, the plate-like soundproof layer has a thickness of 10 to 14mm, and the second plate-like object has a thickness of 2.5 to 3 mm.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a sound insulation structure adopts aramid fiber phenolic honeycomb, and aramid fiber phenolic honeycomb board has better tensile resistance, anti side pressure performance, can satisfy the hardness requirement as sound insulation structure outer panel, and simultaneously, aramid fiber phenolic honeycomb board can effectively collect the noise to transmit the noise absorbed into the puigging and absorb the noise; the aramid fiber phenolic aldehyde honeycomb plates are arranged on the two sides, so that wind noise outside a motor car compartment can be absorbed, noise inside the compartment can be absorbed, noise can be absorbed on the two sides, and the sound insulation effect is good; in addition, set up the arch on aramid fiber phenolic aldehyde honeycomb panel, set up the recess on the two sides of platelike puigging, can effectually avoid the displacement of the face direction between each board and improve sound-proof structure's stability.

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic view of a sound insulation structure according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of another sound insulation structure according to an embodiment of the present invention.

Fig. 3 is a schematic view of another sound insulation structure according to an embodiment of the present invention.

Fig. 4 is a schematic view illustrating an assembly of a fixing portion and a sound insulation structure according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a first foam layer provided in an embodiment of the present invention.

Reference numerals:

1-a first plate-like object, 2-a second plate-like object, 3-a plate-like sound-insulating layer, 4-a second foam layer, 5-a fixing part, 6-a first protrusion, 7-a second protrusion, 8-a second groove, 9-a first groove, 10-a first foam layer, 11-a first support part, 12-a second support part, 13-a third groove.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined purpose, the following detailed description of the embodiments, structural features and effects of the present invention will be made with reference to the accompanying drawings and examples.

Referring to fig. 1, the present invention provides a sound insulation structure, including: a first plate-like object 1, a second plate-like object 2, a plate-like sound insulating layer 3; grooves are formed in two plate surfaces of the plate-shaped sound insulation layer 3, a protrusion is arranged on one surface of the first plate-shaped object 1, and a protrusion is arranged on one surface of the second plate-shaped object 2;

the first bulge 6 is matched with the first groove 9 in shape, the first plate-shaped object 1 and the plate-shaped sound insulation layer 3 are clamped with the first groove 9 through the first bulge 6, the plate surface of the first plate-shaped object 1 is the same as the plate surface of the plate-shaped sound insulation layer 3 in size and shape, and the plate surface of the first plate-shaped object 1 is aligned, attached and bonded with the plate surface of the plate-shaped sound insulation layer 3;

the second protrusion 7 is matched with the second groove 8 in shape, the second plate-shaped object 2 and the plate-shaped sound insulation layer 3 are clamped with the second groove 8 through the second protrusion 7, the plate surface of the second plate-shaped object 2 is the same as the plate surface of the plate-shaped sound insulation layer 3 in size and shape, and the plate surface of the second plate-shaped object 2 is aligned, attached and bonded with the plate surface of the plate-shaped sound insulation layer 3; wherein the first plate-shaped object 1 and the second plate-shaped object 2 are both aramid fiber phenolic honeycomb plates.

Specifically, the method for manufacturing the aramid fiber phenolic aldehyde honeycomb plate comprises the steps of pressing a foaming material of phenol and formaldehyde, namely a phenolic aldehyde material, into a honeycomb core with holes from the upper surface and the lower surface to form the aramid fiber phenolic aldehyde honeycomb plate; the porous honeycomb core is preferably of an aramid honeycomb structure, phenolic aldehyde is a new-generation heat-preservation fireproof sound-insulation material, and the aramid phenolic honeycomb plate made of phenolic aldehyde filled aramid honeycombs has the characteristics of heat preservation, fire prevention and the like. Due to the existence of benzene rings in the phenolic aldehyde, the size of the phenolic aldehyde foam is stable and is not easy to deform. The aramid fiber phenolic aldehyde honeycomb plates are used as the two outer surfaces of the sound insulation structure, so that wind noise outside a motor car compartment can be absorbed, noise inside the compartment can be absorbed, double-sided noise absorption is realized, and the sound insulation effect is good; in addition, the weight of the aramid fiber phenolic aldehyde honeycomb plate is far smaller, the weight of the sound insulation structure is reduced by using the aramid fiber phenolic aldehyde honeycomb plate to refer to a traditional metal plate, and the sound insulation layer is a foamed rubber sound insulation layer or a sound insulation plate, preferably a foamed rubber sound insulation layer.

Further, the plate-shaped sound insulation layer 3 comprises a honeycomb core and foamed rubber, wherein the honeycomb core is a plate-shaped object containing a plurality of hole structures, the foamed rubber is filled in the hole structures of the honeycomb core, and a high-quality sound insulation material, namely the foamed rubber, is pressed into the perforated honeycomb core from the upper surface and the lower surface, so that the sound insulation effect of the honeycomb core is improved, wherein the honeycomb core is any one of a composite plate honeycomb core, an aluminum corrugated core, a microporous honeycomb core, an aluminum honeycomb core and an aramid paper honeycomb core.

Referring to fig. 2, a first foam layer 10 is disposed between the first plate-like object 1 and the plate-like sound insulation layer 3, a second foam layer 4 is disposed between the second plate-like object 2 and the plate-like sound insulation layer 3, the material of the first foam layer and the material of the second foam layer are preferably phenolic foam, the phenolic foam is used as a high-quality sound insulation material, and meanwhile, the sound insulation structure has the characteristics of heat preservation, fire prevention and the like, is light in weight, good in sound insulation effect, non-toxic and harmless, and the phenolic foam layers are added on the two surfaces of the plate-like sound insulation layer 3, so that the sound insulation effect of the sound insulation structure is enhanced.

Further, referring to fig. 3 and 5, the sound insulation structure further includes at least three first supporting portions 11 and at least three second supporting portions 12, each first supporting portion 11 is disposed between the first plate-like object 1 and the plate-like sound insulation layer 3, each first supporting portion 11 is in contact with the first plate-like object 1 and the plate-like sound insulation layer 3, and each first supporting portion 11 penetrates through the first foam layer 10; each of the second supporting portions 12 is disposed between the second plate-like object 2 and the plate-like sound insulating layer 3, each of the second supporting portions 12 is in contact with both the second plate-like object 2 and the plate-like sound insulating layer 3, and each of the second supporting portions 12 penetrates the second foam layer 4; each first supporting part 11 and each second supporting part 12 are hollow columnar structures, and foam can run through between first supporting part 11 and the second supporting part 12, improves the coverage rate of foam, and then improves the syllable-dividing effect.

Specifically, because the rigidity of foamed rubber material is relatively poor, in sound-proof structure extrusion in-process, the foam blanket can take place deformation, firstly, influence whole sound-proof structure's stability, secondly, the foam blanket is under the condition of being seriously extruded, syllable-dividing effect greatly reduced, so, increase first supporting part 11 between first slabby thing 1 and slabby puigging 3, increase second supporting part 12 between second slabby thing 2 and slabby puigging 3, both can guarantee the stability of structure, can guarantee again that the foam blanket has better syllable-dividing efficiency.

Further, referring to fig. 4, the sound insulation structure further includes a fixing portion 5, a third groove 13 is formed in a side wall of the sound insulation structure, and the third groove 13 penetrates through the first plate-like object 1, the second plate-like object 2, and the plate-like sound insulation layer 3; the fixing part 5 is embedded in the third groove 13

Specifically, fixed part 5 is "C" shape fixed part 5 or "one" type fixed part 5, fixed part 5 inlays in each board of sound-proof structure, can scribble the super glue on the contact surface, further guarantee mosaic structure's stability, preferably, fixed part 5 is preferred "C" shape fixed part 5, "C" shape fixed part 5's opening is greater than sound-proof structure's thickness for the opening card of "C" shape fixed part 5 is on sound-proof structure's outside face, the displacement of sound-proof structure in the direction of perpendicular to face has been restricted, further guarantee the stability of structure, wherein, the material of fixed part 5 is the metal, specifically is any one of steel, aluminum alloy, copper alloy.

Further, the thickness of the first plate-shaped object 1 is 2.5-3mm, the thickness of the plate-shaped sound insulation layer 3 is 10-14mm, the thickness of the second plate-shaped object 2 is 2.5-3mm, preferably, the thickness of the first plate-shaped object 1 is 2.5mm, the thickness of the plate-shaped sound insulation layer is 12mm, the thickness of the second plate-shaped object 2 is 2.5mm, and the internal noise of the carriage can be reduced to be less than 10 decibels by adopting the preferable plate-shaped object structure.

The utility model provides a sound insulation structure adopts aramid fiber phenolic honeycomb, and aramid fiber phenolic honeycomb board has better tensile resistance, anti side pressure performance, can satisfy the hardness requirement as sound insulation structure outer panel, and simultaneously, aramid fiber phenolic honeycomb board can effectively collect the noise to transmit the noise absorbed into the puigging and absorb the noise; the aramid fiber phenolic aldehyde honeycomb plates are arranged on the two sides, so that wind noise outside a motor car compartment can be absorbed, noise inside the compartment can be absorbed, noise can be absorbed on the two sides, and the sound insulation effect is good; secondly, the aramid fiber phenolic honeycomb plate is provided with the protrusions, and the two surfaces of the plate-shaped sound insulation layer are provided with the grooves, so that the displacement between the plates in the plate surface direction can be effectively avoided, and the stability of the sound insulation structure is improved; finally, the weight of the aramid fiber phenolic aldehyde honeycomb plate is far less than that of the metal plate, and the weight of the sound insulation structure is reduced by using the aramid fiber phenolic aldehyde honeycomb plate to refer to the traditional metal plate.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. An acoustic insulation structure, comprising: a first plate-like object (1), a second plate-like object (2), and a plate-like sound insulation layer (3); a first groove (9) and a second groove (8) are respectively arranged on two plate surfaces of the plate-shaped sound insulation layer (3), a first bulge (6) is arranged on one surface of the first plate-shaped object (1), and a second bulge (7) is arranged on one surface of the second plate-shaped object (2);

the first bulge (6) is matched with the first groove (9) in shape, the first plate-shaped object (1) and the plate-shaped sound insulation layer (3) are clamped with the first groove (9) through the first bulge (6), the plate surface of the first plate-shaped object (1) is the same as the plate surface of the plate-shaped sound insulation layer (3) in size and shape, and the plate surface of the first plate-shaped object (1) is aligned, attached and bonded with the plate surface of the plate-shaped sound insulation layer (3);

the second protrusion (7) is matched with the second groove (8) in shape, the second plate-shaped object (2) and the plate-shaped sound insulation layer (3) are clamped with the second groove (8) through the second protrusion (7), the plate surface of the second plate-shaped object (2) is the same as the plate surface of the plate-shaped sound insulation layer (3) in size and shape, and the plate surface of the second plate-shaped object (2) is aligned, attached and bonded with the plate surface of the plate-shaped sound insulation layer (3);

the first plate-shaped object (1) and the second plate-shaped object (2) are aramid fiber phenolic aldehyde honeycomb plates.

2. The sound insulation structure according to claim 1, wherein the plate-like sound insulation layer (3) comprises a honeycomb core and foamed rubber, wherein the honeycomb core is a plate-like object containing a plurality of pore structures, and the foamed rubber is filled in the pore structures of the honeycomb core.

3. Soundproofing structure according to claim 2, characterised in that a first foam layer (10) is arranged between the first panel (1) and the panel-like soundproofing layer (3) and a second foam layer (4) is arranged between the second panel (2) and the panel-like soundproofing layer (3).

4. A sound-insulating structure as claimed in claim 3, characterized in that it further comprises at least three first supports (11) and at least three second supports (12), each first support (11) being arranged between the first panel (1) and the panel-like sound-insulating layer (3), each first support (11) being in contact with both the first panel (1) and the panel-like sound-insulating layer (3), each first support (11) penetrating the first foam layer (10);

each second support (12) is arranged between the second plate-like object (2) and the plate-like sound-insulating layer (3), each second support (12) is in contact with both the second plate-like object (2) and the plate-like sound-insulating layer (3), and each second support (12) penetrates through the second foam layer (4);

each first supporting part (11) and each second supporting part (12) are of hollow columnar structures.

5. The sound-proofing structure according to claim 1, characterized in that it further comprises a fixing portion (5), the side wall of said sound-proofing structure being perforated with a third groove (13), said third groove (13) passing through said first plate-like object (1), said second plate-like object (2), said plate-like sound-proofing layer (3); the fixing part (5) is embedded in the third groove (13).

6. The sound insulation structure according to claim 1, wherein the thickness of the first plate-like object (1) is 2.5 to 3mm, the thickness of the plate-like sound insulation layer (3) is 10 to 14mm, and the thickness of the second plate-like object (2) is 2.5 to 3 mm.