Double-layer single-face curing type sound insulation foam

Abstract

The utility model relates to the technical field of sound insulation foam, and discloses double-layer type single-face curing type sound insulation foam which is arranged in a combined type structure, a sound absorption plate layer is arranged on the upper layer of a foam cushion layer, the lower portion of the sound absorption plate layer is arranged in a wave type structure, and sound absorption holes are evenly formed in the lower portion of the sound absorption plate layer. The noise can be more effectively isolated and eliminated by utilizing the wave-shaped bottom surface to directionally reflect the noise and matching with the noise reduction characteristics of the foam cushion layer and the sound absorption holes, and compared with the traditional single sound insulation foam, the sound insulation foam has better noise isolation and weakening effects; the flame-retardant net layer and the flame-retardant plate layer are arranged in the interlayer between the foam cushion layer and the sound-absorbing plate layer and on the upper portion of the sound-absorbing plate layer respectively, the flame-retardant net layer and the flame-retardant plate layer form a double-flame-retardant protection structure, flames can be effectively separated and blocked when an automobile fire happens, the flame-retardant protection performance of the device is greatly improved, and the service life of the device is prolonged. And the hardened layer is arranged at the lower part of the adhesive layer, so that the mounting and stress supporting stability of the foam can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound insulation foam technical field, concretely to a double -deck formula single -sided solidification type sound insulation foam. BACKGROUND

[0002] The automobile sound insulation foam is an important accessory on the automobile, and the automobile sound insulation foam can fill the gaps between the vehicle body or the hood components, can be according to the performance of vehicle, corresponding road conditions etc., the noise generated by automobile engine, the vibration resonance sound generated by tire and ground, the gap or aging extrusion friction sound of the components in the vehicle compartment etc. are carefully handled to improve the comfort of automobile ride, have the effect of shock absorption, waterproof, dustproof, sound insulation, decoration etc., and excellent automobile sound insulation foam can improve the comfort of driving experience and the vehicle body protection of vehicle.

[0003] In actual use, the sound insulation foam is usually installed outside the noise and vibration components, such as the gap between the hood and the door plate, and the existing sound insulation foam is usually single in structure, mainly relying on the sound insulation performance of the foam material itself, and the sound insulation effect of noise is not good, and the foam is usually installed in the driving working part of the automobile, such as the engine compartment, and there is a certain combustion risk in the working place of the sound insulation foam due to the heat generated by the working components, the traditional sound insulation foam has poor flame blocking characteristics, which easily leads to the spread of fire, therefore, a double -deck formula single -sided solidification type sound insulation foam is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a double -deck formula single -sided solidification type sound insulation foam to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a double -deck formula single -sided solidification type sound insulation foam, including: foam pad layer, flame -retardant net layer, sound absorption board layer, flame -retardant board layer, hardening layer and viscose layer, the foam pad layer is fixedly installed in the lower part of the sound absorption board layer, the flame -retardant net layer is clamped and installed between the interlayer of the foam pad layer and the sound absorption board layer;

[0006] The upper part of the foam pad layer and the lower part of the sound absorption board layer are both provided with wave structure, the middle part of the foam pad layer and the sound absorption board layer is provided with sound absorption hole, the flame -retardant board layer and the hardening layer are sequentially arranged in the upper layer of the sound absorption board layer, and the viscose layer is fixed to the upper part of the hardening layer.

[0007] As preferred, the wave convex surface of the upper part of the foam pad layer is embedded with the wave concave surface of the lower part of the sound absorption board layer, and the foam pad layer and the sound absorption board layer are integrally fixedly connected through structural viscose.

[0008] As preferred, the flame -retardant net layer is provided with thin mesh structure, and the flame -retardant net layer is fixedly clamped and installed between the installation interlayer of the foam pad layer and the sound absorption board layer.

[0009] As preferred, the sound absorption holes are evenly distributed in equidistant manner, and the sound absorption holes are arranged in the middle part of the foam pad layer and the sound absorption plate layer.

[0010] As preferred, the fireproof plate layer is fixedly installed on the upper part of the sound absorption plate layer, and the lower part of the hardening layer is fixedly connected with the upper part of the fireproof plate layer.

[0011] As preferred, the adhesive layer is used for connecting and installing the foam, and the adhesive layer comprises a soft pad connecting layer and an installation adhesive.

[0012] As preferred, the soft pad connecting layer is fixedly connected with the upper part of the hardening layer, the lower part of the installation adhesive is fixedly connected with the upper part of the soft pad connecting layer, and the upper part of the installation adhesive is provided with an isolation film.

[0013] Compared with the prior art, the utility model discloses the following technical effects:

[0014] The sound insulation foam adopts the composite structure, the upper layer of the foam pad layer is provided with the sound absorption plate layer, the lower part of the sound absorption plate layer is provided with the sound absorption holes in the wave type structure, the bottom surface of the wave type structure is used for directional reflection of noise, and the sound insulation characteristics of the foam pad layer and the sound absorption holes can effectively isolate and eliminate the noise, the sound insulation foam has better noise isolation weakening effect compared with the traditional single sound insulation foam, the fireproof net layer and the fireproof plate layer are arranged in the interlayer between the foam pad layer and the sound absorption plate layer and the upper part of the sound absorption plate layer respectively, the double fireproof protection structure is formed by the fireproof net layer and the fireproof plate layer, the flame can be effectively separated and blocked when the automobile fire occurs, the fireproof protection property of the device is greatly improved, and the hardening layer is arranged in the lower part of the adhesive layer, so that the installation and stress support stability of the foam are effectively improved. ACCURATE DRAWINGS

[0015] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating labor.

[0016] Figure 1 It is a whole upper side three-dimensional structure schematic view of the utility model;

[0017] Figure 2 It is a whole lower side three-dimensional structure schematic view of the utility model;

[0018] Figure 3 It is a whole split upper side structure schematic view of the utility model;

[0019] Figure 4 It is the integral split lower side structure schematic view of the utility model;

[0020] Figure 5 It is the integral side plane structure schematic view of the utility model;

[0021] Figure 6 It is the Figure 5 A region structure schematic view.

[0022] Mark explanation: 1, foam pad layer; 2, flame-retardant net layer; 3, sound absorption board layer; 4, flame-retardant board layer; 5, hardening layer; 6, adhesive layer; 7, sound absorption hole; 8, soft pad connecting layer; 9, installation adhesive. Specific implementation

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] It is known that the structure, proportion, size and the like shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification for understanding and reading by the person skilled in the art, not to limit the limiting conditions of the application that can be implemented, so it does not have the technical substantive meaning, any modification of structure, change of proportion relationship or adjustment of size, as long as it does not affect the effect and purpose that can be achieved by the application, it should still fall within the scope of the technical content disclosed by the application.

[0025] Embodiment

[0026] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a double-layer single-face solidification type sound insulation foam, sound insulation foam adopts composite structure setting, comprising: foam pad layer 1, flame-retardant net layer 2, sound absorption board layer 3, flame-retardant board layer 4, hardening layer 5 and adhesive layer 6, foam pad layer 1 can be EVA foam, with good soft support and sound absorption characteristics, as shown in the attached Figure 3 As shown in the attached Figure 5As shown, the wave convex surface of the upper part of the foam pad layer 1 is embedded with the wave concave surface of the lower part of the sound-absorbing plate layer 3, and the foam pad layer 1 and the sound-absorbing plate layer 3 are fixedly connected by structural adhesive. In order to further absorb and weaken the noise, sound-absorbing holes 7 are arranged in the middle part of the foam pad layer 1 and the sound-absorbing plate layer 3. The sound-absorbing holes 7 are uniformly distributed in equidistant form, and the sound-absorbing holes 7 are arranged in the middle part of the foam pad layer 1 and the sound-absorbing plate layer 3. The lower part of the sound-absorbing plate layer 3 is provided with sound-absorbing holes 7 in a wave shape. The wave-shaped bottom surface is used for directional reflection of noise, and the sound-absorbing holes 7 can effectively isolate and eliminate noise. Compared with the traditional single sound insulation foam, the device has better noise isolation and weakening effect.

[0027] In order to improve the flame-retardant properties of the foam board, as shown in the attached Figure 4 As shown, the flame-retardant net layer 2 is clamped between the foam pad layer 1 and the sound-absorbing plate layer 3. The flame-retardant net layer 2 can be made of glass fiber material. The flame-retardant net layer 2 is provided in a thin mesh structure. The flame-retardant net layer 2 is fixedly clamped between the foam pad layer 1 and the sound-absorbing plate layer 3. The flame-retardant net layer 2 can preliminarily block the flame and reduce the spreading speed of the flame. The flame-retardant plate layer 4 and the hardening layer 5 are arranged in the upper layer of the sound-absorbing plate layer 3 in sequence. The flame-retardant plate layer 4 is made of high-density foaming PE and added with environmentally friendly flame retardant. The flame-retardant plate layer 4 has good flame-retardant properties. Specifically, as shown in the attached Figure 5 As shown, the flame-retardant plate layer 4 is fixedly arranged on the upper part of the sound-absorbing plate layer 3. The lower part of the hardening layer 5 is fixedly connected with the upper part of the flame-retardant plate layer 4. The flame-retardant net layer 2 and the flame-retardant plate layer 4 form a double flame-retardant protection structure. When a fire occurs in the automobile, the flame can be effectively separated and blocked, so that the flame-retardant protection property of the device is greatly improved.

[0028] The adhesive layer 6 is used for connecting and mounting the foam. As shown in the attached Figure 6 As shown, the adhesive layer 6 is fixedly arranged on the upper part of the hardening layer 5. The hardening layer 5 is made of the same material as the sound-absorbing plate layer 3. The hardening layer 5 is formed by hardening treatment and curing treatment. The adhesive layer 6 is provided in a layered composite structure. The adhesive layer 6 includes a soft pad connecting layer 8 and a mounting adhesive 9. The soft pad connecting layer 8 is a soft PU pad layer. The mounting adhesive 9 is a soft fixed adhesive used for bonding and mounting the device and the vehicle body. The soft pad connecting layer 8 is fixedly connected with the upper part of the hardening layer 5. The soft pad connecting layer 8 can improve the connection stability between the vehicle body and the device and provide flexible mounting support and protection for the hardening layer 5. The hardening layer 5 can effectively improve the mounting and stress support stability of the foam. The lower part of the mounting adhesive 9 is fixedly connected with the upper part of the soft pad connecting layer 8. In order to isolate and protect the mounting adhesive 9, an isolation film is arranged on the upper part of the mounting adhesive 9. The isolation film can be a PE film, which can avoid the mounting adhesive 9 from being contaminated by dust before mounting.

[0029] The working principle or structural principle is that the foam pad layer 1 and the sound absorption plate layer 3 are cut by a mold to form a wave-shaped joint structure, then the foam pad layer 1, the fire-retardant mesh layer 2, the sound absorption plate layer 3, the fire-retardant plate layer 4, the hardening layer 5 and the adhesive layer 6 are integrally hot-pressed by brushing glue to form a plate pad type foam structure, during installation, the foam pad layer 1 is directed to the noise side, then the isolation film on the upper part of the mounting adhesive 9 is torn off, and the foam plate is installed on the upper part of the vehicle body through the mounting adhesive 9 and the bolt when needed, during work, the foam pad layer 1 supports and installs the automobile working parts, the noise generated by the automobile work is conducted to the foam plate side, the noise penetrates the foam pad layer 1 and is preliminarily weakened, then part of the noise is reflected by the wave surface of the lower part of the sound absorption plate layer 3, and the remaining noise is absorbed and weakened again through the sound absorption hole 7, so that the noise is blocked and weakened, and when the automobile catches fire, the flame is blocked by the double blocking of the fire-retardant mesh layer 2 and the fire-retardant plate layer 4, so that the flame can be effectively prevented from spreading.

[0030] In conclusion, the sound insulation foam adopts a composite structure, the upper layer of the foam pad layer 1 is provided with the sound absorption plate layer 3, the lower part of the sound absorption plate layer 3 is provided with the wave-shaped structure and uniformly provided with the sound absorption hole 7, the wave-shaped bottom surface is used for directing the reflection of the noise, and the sound absorption characteristics of the foam pad layer 1 and the sound absorption hole 7 can more effectively isolate and eliminate the noise, compared with the traditional single sound insulation foam, the noise isolation and weakening effect is better, the fire-retardant mesh layer 2 and the fire-retardant plate layer 4 are arranged in the interlayer between the foam pad layer 1 and the sound absorption plate layer 3 and the upper part of the sound absorption plate layer 3 respectively, the double fire-retardant protection structure is formed by the fire-retardant mesh layer 2 and the fire-retardant plate layer 4, the flame can be effectively separated and blocked when the automobile catches fire, the fire-retardant protection property of the device is greatly improved, and the hardening layer 5 is arranged at the lower part of the adhesive layer 6, so that the installation and stress support stability of the foam can be effectively improved.

[0031] Those skilled in the art can understand that the features recorded in various embodiments and / or claims of the present application can be combined or / and combined in various ways, even if such combinations or combinations are not explicitly recorded in the present application. In particular, the features recorded in various embodiments and / or claims of the present application can be combined and / or combined in various ways without departing from the spirit and teachings of the present application. All these combinations and / or combinations fall within the scope of the present application.

Claims

1. A double-layered single-sided curing type soundproof foam, characterized by, Include: The foam pad layer (1), the flame-retardant net layer (2), the sound-absorbing board layer (3), the flame-retardant board layer (4), the hardening layer (5) and the adhesive layer (6), the foam pad layer (1) is fixedly installed in the lower part of the sound-absorbing board layer (3), the flame-retardant net layer (2) is clamped and installed between the interlayer of the foam pad layer (1) and the sound-absorbing board layer (3); The upper part of the foam pad layer (1) and the lower part of the sound-absorbing board layer (3) are both provided with wave structure, the middle part of the foam pad layer (1) and the sound-absorbing board layer (3) are both provided with sound-absorbing holes (7), the flame-retardant board layer (4) and the hardening layer (5) are sequentially arranged on the upper layer of the sound-absorbing board layer (3), and the adhesive layer (6) is fixed on the upper part of the hardening layer (5).

2. The double-layered single-sided cured soundproof foam according to claim 1, wherein: The wave convex surface of the upper part of the foam pad layer (1) is embedded with the wave concave surface of the lower part of the sound-absorbing board layer (3), and the foam pad layer (1) and the sound-absorbing board layer (3) are integrally fixedly connected through structural adhesive.

3. The double-layered single-sided cured soundproof foam according to claim 2, characterized in that: The flame-retardant net layer (2) is provided with thin mesh structure, and the flame-retardant net layer (2) is fixedly clamped and installed between the installation interlayer of the foam pad layer (1) and the sound-absorbing board layer (3).

4. The double-layered single-sided cured soundproof foam according to claim 3, characterized in that: The sound-absorbing holes (7) are uniformly distributed in equidistant form, and the sound-absorbing holes (7) are provided in the middle part of the foam pad layer (1) and the sound-absorbing board layer (3).

5. The double-layered single-sided cured soundproof foam according to claim 1, wherein: The flame-retardant board layer (4) is integrally fixedly installed on the upper part of the sound-absorbing board layer (3), and the lower part of the hardening layer (5) is fixedly connected with the upper part of the flame-retardant board layer (4).

6. The double-layered single-sided cured soundproof foam according to claim 5, wherein: The adhesive layer (6) is used for connecting and installing the foam, and the adhesive layer (6) comprises a soft pad connecting layer (8) and an installation adhesive (9).

7. A double-layered single-sided cured soundproof foam according to claim 6, characterized in that: The soft pad connecting layer (8) is fixedly connected with the upper part of the hardening layer (5), the lower part of the installation adhesive (9) is fixedly connected with the upper part of the soft pad connecting layer (8), and the upper part of the installation adhesive (9) is provided with an isolation film.

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