Composite heat insulation and sound insulation foam

Abstract

The utility model relates to the technical field of foam, and discloses composite heat-insulation and sound-insulation foam which comprises a first baffle, and a second baffle is arranged on the outer side of the first baffle. A sound-proof felt layer is arranged on one side of the first baffle, sound-absorbing cotton layers are connected to the two sides of the sound-proof felt layer, and an aerogel layer is connected to one side of each sound-absorbing cotton layer; a plurality of limiting columns are bonded to one side of the sound-absorbing cotton layer and one side of the sound-insulating felt layer, and third limiting grooves are formed in one side of the aerogel layer and one side of the sound-absorbing cotton layer; through combined use of the sound absorption cotton layer and the sound insulation felt layer, the noise absorption capacity of foam can be remarkably improved, the sound absorption cotton layer can absorb and disperse sound waves and reduce reflection and transmission of sound, and the sound insulation felt layer can further isolate sound penetration, so that the influence of external noise on the internal environment is reduced, and the sound insulation effect is improved. The aerogel layer has extremely low thermal conductivity and good thermal insulation performance, and can effectively isolate external heat transfer, keep the internal temperature of the foam stable, reduce energy loss and improve energy utilization efficiency.

Description

Technical Field

[0001] This utility model relates to the field of foam technology, specifically to a composite heat-insulating and sound-insulating foam. Background Technology

[0002] Foam is a material made by foaming plastic particles. Foam is divided into PU foam, antistatic foam, conductive foam, EPE, antistatic EPE, CR, EVA, crosslinked PE, SBR, EPDM, etc. Foam has a series of characteristics such as elasticity, light weight, quick pressure-sensitive fixing, convenient use, flexible bending, ultra-thin volume, and reliable performance.

[0003] With the rapid development of the automotive industry, consumers have increasingly higher requirements for the comfort and quietness of the car's interior environment. Traditional sound and heat insulation materials often suffer from problems such as complex installation, unstable structure, and poor sound and heat insulation effects, failing to meet the demands of modern cars for a high-quality interior environment. Therefore, a composite heat and sound insulation foam is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a composite heat-insulating and sound-insulating foam to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a composite heat-insulating and sound-insulating foam, comprising a first baffle, wherein a second baffle is provided on the outer side of the first baffle;

[0006] The first baffle is provided with a sound insulation felt layer on one side, and sound absorption cotton layers are connected to both sides of the sound insulation felt layer. An aerogel layer is connected to one side of the sound absorption cotton layer.

[0007] Several limiting posts are bonded to one side of both the sound-absorbing cotton layer and the sound-insulating felt layer, and a third limiting groove is provided on one side of both the aerogel layer and the sound-absorbing cotton layer.

[0008] One side of the aerogel layer is provided with a connecting component for connecting the first baffle and the second baffle.

[0009] Preferably, the connecting assembly includes a connecting plate and a protrusion, the protrusion has a platform surface on one side, and guide slopes are provided on both sides of the platform surface, and one side of the connecting plate is fixed to one side of the second baffle.

[0010] Preferably, the first baffle is attached to a connecting frame around its perimeter, and the connecting frame has an insertion groove on one side, with a second limiting groove on the inner wall of the insertion groove.

[0011] Preferably, the above-mentioned protrusion and the inner wall of the insertion groove are provided with a first limiting groove.

[0012] Preferably, when the limiting column is inserted into the inner side of the third limiting groove, the aerogel layer, the sound-absorbing cotton layer and the sound-insulating felt layer are in a connected state.

[0013] Preferably, one side of the bump is fixed to the inner wall of the insertion groove. When the connecting plate is inserted into the inner side of the first limiting groove, the first baffle and the second baffle are in a connected state.

[0014] Preferably, the first baffle and the second baffle wrap the outer sides of the aerogel layer, the sound-absorbing cotton layer and the sound-insulating felt layer, and the second baffle is in the shape of a Chinese character 'hui'.

[0015] Compared with the prior art, the present utility model adopts the above technical solutions and has the following technical effects:

[0016] First, the combined use of the sound-absorbing cotton layer and the sound-insulating felt layer can significantly improve the noise absorption ability of the foam. The sound-absorbing cotton layer can absorb and disperse sound waves, reduce the reflection and propagation of sound, and the sound-insulating felt layer can further isolate the penetration of sound, thereby reducing the impact of external noise on the internal environment. The aerogel layer has an extremely low thermal conductivity and good heat insulation performance. It can effectively isolate the external heat transfer, keep the temperature inside the foam stable, reduce energy loss, and improve energy utilization efficiency.

[0017] Second, through the cooperation of the limiting column and the third limiting groove, the rapid and accurate connection between the layers of materials is realized. The combined use of the limiting column and the limiting groove can ensure the precise positioning of each layer of materials during the installation process, and a more stable structure is formed between the layers of materials, which helps to resist the vibration and impact that the vehicle may encounter during driving and extends the service life of the foam.

[0018] Third, through the cooperation of the connecting plate, the second limiting groove, the platform surface and the guiding inclined surface, the connecting plate is deformed under the action of the guiding inclined surface and inserted into the inner side of the first limiting groove, forming a stable mechanical connection, realizing the rapid and simple connection between the first baffle and the second baffle, without the need for complex tools or additional fixing parts, greatly improving the installation convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the external structure of the present utility model;

[0021] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the connecting plate structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the platform surface structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the distribution structure of the limiting columns of this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. First baffle; 2. Aerogel layer; 3. Sound-absorbing cotton layer; 4. Second baffle; 5. Connecting assembly; 51. Connecting frame; 52. Connecting plate; 53. Insertion groove; 54. First limiting groove; 55. Protrusion; 56. Guide slope; 57. Platform surface; 58. Second limiting groove; 6. Sound insulation felt layer; 7. Limiting post; 8. Third limiting groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0028] Example

[0029] Please see Figure 1-5, the present utility model provides a technical solution: a composite heat-insulating and sound-insulating foam, including a first baffle 1, a second baffle 4 is provided outside the first baffle 1, and the materials of the first baffle 1 and the second baffle 4 are foam; a sound insulation felt layer 6 is provided on one side of the first baffle 1, sound absorption cotton layers 3 are connected to both sides of the sound insulation felt layer 6, an aerogel layer 2 is connected to one side of the sound absorption cotton layer 3, and the first baffle 1 and the second baffle 4 are wrapped outside the aerogel layer 2, the sound absorption cotton layer 3 and the sound insulation felt layer 6. The second baffle 4 is in the shape of a "return" character. The combined use of the sound absorption cotton layer 3 and the sound insulation felt layer 6 can significantly improve the noise absorption ability of the foam. The sound absorption cotton layer 3 can absorb and disperse sound waves, reduce the reflection and transmission of sound, while the sound insulation felt layer 6 can further isolate the penetration of sound, thereby reducing the impact of external noise on the internal environment. The aerogel layer 2 has an extremely low thermal conductivity and good heat insulation performance, and it can effectively isolate the heat transfer from the outside;

[0030] A number of limiting columns 7 are adhesively bonded to one side of both the sound absorption cotton layer 3 and the sound insulation felt layer 6. A third limiting groove 8 is provided on one side of both the aerogel layer 2 and the sound absorption cotton layer 3. When the limiting column 7 is inserted into the inner side of the third limiting groove 8, the aerogel layer 2, the sound absorption cotton layer 3 and the sound insulation felt layer 6 are in a connected state. The cooperation of the limiting column 7 and the third limiting groove 8 realizes the rapid and accurate connection between the layers of materials. The combined use of the limiting column 7 and the limiting groove can ensure the precise positioning of the layers of materials during the installation process;

[0031] A connection component 5 for connecting the first baffle 1 and the second baffle 4 is provided on one side of the aerogel layer 2.

[0032] In order to facilitate the connection of the composite foams together, a connection component 5 is provided. The connection component 5 includes a connecting plate 52 and a convex block 55. The material of the connecting plate 52 can be polypropylene (PP), polyvinyl chloride (PVC), nylon (PA) or natural rubber, synthetic rubber, etc. The convex block 55 is made of plastic. A platform surface 57 is provided on one side of the convex block 55, and guiding inclined surfaces 56 are provided on both sides of the platform surface 57. One side of the connecting plate 52 is fixed to one side of the second baffle 4. Connection frames 51 are adhesively bonded around the first baffle 1. An insertion groove 53 is provided on one side of the connection frame 51. Align the connecting plate 52 on one side of the second baffle 4 and insert it into the second limiting groove 58. When the connecting plate 52 contacts and slides along one side of the platform surface 57 and along the guiding inclined surface 56, at this time, under the action of the guiding inclined surface 56, the connecting plate 52 is deformed and inserted into the inner side of the first limiting groove 54. A second limiting groove 58 is provided on the inner wall of the insertion groove 53, and a first limiting groove 54 is provided between the convex block 55 and the inner wall of the insertion groove 53.

[0033] One side of the protrusion 55 is fixed to the inner wall of the insertion groove 53. When the connecting plate 52 is inserted into the inner side of the first limiting groove 54, the first baffle 1 and the second baffle 4 are connected. The second baffle 4 is connected to the first baffle 1 on one side, and the aerogel layer 2, sound-absorbing cotton layer 3 and sound-insulating felt layer 6 connected together are placed inside the second baffle 4. Finally, the first baffle 1 on the other side is connected to the second baffle 4. At this time, the heat-insulating and sound-insulating foam is composited together.

[0034] Working principle: The sound-absorbing cotton layer 3 and the sound-insulating felt layer 6 absorb the noise on the outside of the foam, and the aerogel layer 2 isolates the external heat. With the foam of the first baffle 1 and the second baffle 4, it can play the role of sound insulation and heat insulation.

[0035] When foam is needed for heat and sound insulation in a car, first take the sound insulation felt layer 6, align the third limiting groove 8 on one side of the sound absorption cotton layer 3 with the limiting post 7 on one side of the sound insulation felt layer 6, so that the sound absorption cotton layer 3 and the sound insulation felt layer 6 are connected together. Then, connect the aerogel layer 2 and the sound absorption cotton layer 3 together in the same way.

[0036] Take two first baffles 1 and second baffles 4, align the connecting plate 52 on one side of the second baffle 4 with the second limiting groove 58 and insert it. When the connecting plate 52 contacts and slides along one side of the platform surface 57 and along the guide slope 56, the connecting plate 52 deforms under the action of the guide slope 56 and is inserted into the inner side of the first limiting groove 54. In this way, connect the second baffle 4 to the first baffle 1 on one side in sequence, and put the aerogel layer 2, sound-absorbing cotton layer 3 and sound-insulating felt layer 6 connected together into the inner side of the second baffle 4. Finally, connect the first baffle 1 on the other side to the second baffle 4. At this time, the heat-insulating and sound-insulating foam is composited together.

[0037] The aerogel layer 2, sound-absorbing cotton layer 3, and sound-insulating felt layer 6 are sequentially connected and placed inside the second baffle 4, and then the first baffle 1 on the other side is covered to form a complete heat insulation and sound insulation structure. This structure can more effectively isolate external heat and noise, improve the comfort and quietness of the car interior, and when a certain layer of material in the foam composite is damaged or aged, it can be easily disassembled and replaced with a new material without replacing the entire composite, reducing maintenance costs and extending the service life of the foam composite.

[0038] In summary, the combined use of sound-absorbing cotton layer 3 and sound-insulating felt layer 6 can significantly improve the foam's noise absorption capacity. Sound-absorbing cotton layer 3 can absorb and disperse sound waves, reducing sound reflection and propagation, while sound-insulating felt layer 6 can further isolate sound penetration, thereby reducing the impact of external noise on the internal environment. Aerogel layer 2 has extremely low thermal conductivity and good heat insulation performance, which can effectively isolate external heat transfer, maintain the stability of the internal temperature of the foam, reduce energy loss, and improve energy utilization efficiency.

[0039] The combination of the limiting post 7 and the third limiting groove 8 enables a quick and accurate connection between the layers of material. The use of the limiting post 7 and the limiting groove ensures the precise positioning of each layer of material during installation. The layers of material form a more stable structure, which helps to resist the vibration and impact that the car may encounter during driving and extends the service life of the foam.

[0040] Through the cooperation of the connecting plate 52, the second limiting groove 58, the platform surface 57 and the guide slope 56, the connecting plate 52 deforms under the action of the guide slope 56 and inserts into the inner side of the first limiting groove 54, forming a stable mechanical connection. This realizes a quick and easy connection between the first baffle 1 and the second baffle 4 without the need for complicated tools or additional fasteners, greatly improving the convenience of installation.

[0041] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A composite thermal and sound insulation foam, comprising a first baffle (1), characterized in that: A second baffle (4) is provided on the outer side of the first baffle (1); A sound insulation felt layer (6) is provided on one side of the first baffle (1). Sound absorption cotton layers (3) are connected to both sides of the sound insulation felt layer (6). A aerogel layer (2) is connected to one side of the sound absorption cotton layer (3); A number of limiting columns (7) are adhesively bonded to one side of both the sound absorption cotton layer (3) and the sound insulation felt layer (6). Third limiting grooves (8) are provided on one side of both the aerogel layer (2) and the sound absorption cotton layer (3); A connection component (5) for connecting the first baffle (1) and the second baffle (4) is provided on one side of the aerogel layer (2).

2. The composite heat-insulating and sound-insulating foam according to claim 1, characterized in that: The connection component (5) includes a connecting plate (52) and a convex block (55). A platform surface (57) is provided on one side of the convex block (55). Guide inclined surfaces (56) are provided on both sides of the platform surface (57). One side of the connecting plate (52) is fixed to one side of the second baffle (4).

3. The composite thermal insulation and sound insulation foam according to claim 2, characterized in that: Connection frames (51) are adhesively bonded to the periphery of the first baffle (1). An insertion groove (53) is formed on one side of the connection frame (51). A second limiting groove (58) is provided on the inner wall of the insertion groove (53).

4. The composite thermal insulation and sound insulation foam according to claim 3, characterized in that: A first limiting groove (54) is provided between the inner wall of the convex block (55) and the inner wall of the insertion groove (53).

5. The composite thermal insulation and sound insulation foam according to claim 1, characterized in that: When the limiting columns (7) are inserted into the inner side of the third limiting groove (8), the aerogel layer (2), the sound absorption cotton layer (3) and the sound insulation felt layer (6) are in a connected state.

6. The composite thermal insulation and sound insulation foam according to claim 4, characterized in that: One side of the convex block (55) is fixed to the inner wall of the insertion groove (53). When the connecting plate (52) is inserted into the inner side of the first limiting groove (54), the first baffle (1) and the second baffle (4) are in a connected state.

7. The composite thermal insulation and sound insulation foam according to claim 1, characterized in that: The first baffle (1) and the second baffle (4) wrap the outer sides of the aerogel layer (2), the sound absorption cotton layer (3) and the sound insulation felt layer (6). The shape of the second baffle (4) is "回”-shaped.

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