Automobile interior trim panel with sound insulation and noise reduction functions

Abstract

The utility model provides an automotive trim panel with sound insulation and noise reduction functions, which belongs to the technical field of automotive trim and aims to solve the problem that a sound insulation layer of a decorative panel in the prior art is inconvenient to mount. The automotive trim panel comprises a clamping plate, at least one buckle is arranged on the inner side face of the clamping plate, and at least two limiting columns are fixedly connected to the outer side face of the clamping plate. The limiting column is provided with a through hole along the axis of the limiting column. The base plate is provided with limiting holes matched with the limiting columns; the nut is arranged in the limiting hole, the bolt penetrates through the through hole and the limiting hole, and the through hole and the limiting hole are in threaded connection with the nut; the sound insulation layer is arranged on the outer side of the base plate; and the surface layer fabric wraps the outer surfaces of the base plate and the sound insulation layer.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile interior decoration, more specifically, it relates to a kind of automobile interior trim panel with sound insulation and noise reduction function. BACKGROUND

[0002] The automobile interior trim panel is used to improve the overall visual effect of the vehicle, create different style atmospheres, such as luxury, fashion, simplicity, etc., and meet the individual needs of consumers. It also provides better tactile and body sensation for passengers by using soft materials and reasonable design, increasing the comfort of riding. It protects the metal, plastic and other base components in the vehicle from scratching, wearing and corrosion, and also plays a role in sound insulation and heat insulation to some extent, improving the quietness and temperature comfort of the vehicle interior. Some decorative panels integrate various functional components such as audio speakers, window control switches and door handles, making it easy for passengers to operate and improving the convenience of vehicle use.

[0003] For example, the application number CN202110570649.7 is a kind of automobile interior trim panel. The automobile interior trim panel includes a skeleton layer made of light-transmitting material and a soft touch layer made of non-light-transmitting foaming material attached to the outer side of the skeleton layer. The skeleton layer and the soft touch layer are formed by double-material injection molding process. The soft touch layer has a plurality of through light holes. The skeleton layer has a plurality of protruding light-transmitting parts and a plurality of recessed light-enhancing holes. The light-transmitting part is embedded in the corresponding light hole, and the light-transmitting part blocks one end of the corresponding light-enhancing hole. The other end of the light-enhancing hole penetrates the skeleton layer. The automobile interior trim panel has the advantages of easy processing, high light transmittance and high pattern clarity.

[0004] Based on the above-mentioned patent search and combined with the existing technology, it is found that the existing decorative panel is not convenient for the installation of the sound insulation layer.

[0005] Therefore, in view of the above, the existing structure and defects are studied and improved, and a kind of automobile interior trim panel with sound insulation and noise reduction function is provided, in order to achieve the purpose of more practical value. INVENTION CONTENTS

[0006] In order to solve the above technical problems, the utility model provides a kind of automobile interior trim panel with sound insulation and noise reduction function, to solve the problem of the installation of the sound insulation layer of the decorative panel of prior art.

[0007] The purpose and effect of the utility model are achieved by the following specific technical means:

[0008] A kind of automobile interior trim panel with sound insulation and noise reduction function, comprising:

[0009] The clamping plate is internally provided with at least one clasp, and is externally fixedly connected with two limiting columns, and the limiting columns are provided with through holes along the axial lines thereof;

[0010] The base plate is provided with limiting holes matched with the limiting columns;

[0011] The nut is arranged in the limiting holes, and the through holes and the limiting holes are arranged in threaded connection with the bolt and the nut;

[0012] The sound insulation layer is arranged on the outer side of the base plate;

[0013] The surface fabric is wrapped on the outer surfaces of the base plate and the sound insulation layer.

[0014] Further, a buffer layer is arranged between the sound insulation layer and the surface fabric.

[0015] Further, the buffer layer is sponge or rubber.

[0016] Further, the sound insulation layer is sound insulation felt or sound absorbing cotton.

[0017] Further, the clasp comprises a plurality of supporting rod portions arranged in a circumferential array, a clamping portion fixedly connected with the outer circumferences of the end portions of the supporting rod portions, and gaps are formed between the supporting rod portions.

[0018] Further, the base plate is provided with a boss portion at the outer edge of the lower portion.

[0019] Compared with the prior art, the automobile interior panel with sound insulation and noise reduction functions has the following beneficial effects:

[0020] The base plate is arranged, and the limiting holes are arranged on the base plate, so that the base plate is positioned on the clamping plate, the bolt is arranged in threaded connection with the nut through the through holes and the limiting holes, and the base plate and the sound insulation layer thereon are fixed, and the sound insulation layer is wrapped on the base plate by the surface fabric. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a three-dimensional structure schematic view of the automobile interior panel with sound insulation and noise reduction functions of the utility model (the surface fabric is partially torn to show the base plate, the sound insulation layer and the buffer layer inside).

[0022] Figure 2 is an explosion structure schematic view (first perspective view) of the automobile interior panel with sound insulation and noise reduction functions of the utility model.

[0023] Figure 3 is a three-dimensional structure schematic view of the automobile interior panel with sound insulation and noise reduction functions of the utility model (the surface fabric is partially torn to show the base plate, the sound insulation layer and the buffer layer inside). Figure 2

[0024] Figure 4 ​It is an explosion structure schematic view (second visual angle) of the automobile interior trim panel with sound insulation and noise reduction functions.

[0025] In the figure, the corresponding relationship between the component names and the figure numbers is:

[0026] The clamping plate 11, the buckle 110, the supporting rod part 110a, the buckling part 110b, the gap 110c, the limiting column 111, the through hole 112, the base plate 12, the limiting hole 121, the boss part 122, the nut 123, the sound insulation layer 13, the buffer layer 14, and the surface fabric 15. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0028] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0030] Example one:

[0031] As shown in the accompanying Figure 1 to the accompanying Figure 4 As shown:

[0032] The present application provides a kind of automobile interior trim panel with sound insulation and noise reduction functions, comprising:

[0033] The clamping plate 11, the clamping plate 11 inner side is provided with at least one buckle 110, the clamping plate 11 outer side is fixedly connected with at least two limiting columns 111, and the limiting column 111 is provided with the through hole 112 along its axis;

[0034] The substrate 12 is provided with a limiting hole 121 matched with the limiting column 111;

[0035] The nut 123 is arranged in the limiting hole 121, the through hole 112 and the limiting hole 121 are threaded through the bolt and are threadedly connected with the nut 123;

[0036] The sound insulation layer 13 is arranged outside the substrate 12;

[0037] The surface fabric 15 is wrapped on the outer surface of the substrate 12 and the sound insulation layer 13. The sound insulation layer 13 and the substrate 12 are bonded by glue.

[0038] The limiting hole 121 in the embodiment is convenient for the limiting column 111 to be inserted, realizes the positioning between the substrate 12 and the clamping plate 11, and the through hole 112 and the limiting hole 121 are threaded through the bolt and are threadedly connected with the nut 123, realizing the fixing between the substrate 12 and the clamping plate 11. The clasp 110 arranged at the bottom of the clamping plate 11 is convenient for the clamping connection between the clamping plate 11 and the automobile sheet metal. The surface fabric 15 wraps the substrate 12 and the sound insulation layer 13 to form a protective layer. The surface fabric 15 can be leather, cloth, plastic and the like.

[0039] Preferably, the substrate 12 adopts medium fiber plate, and the surface fabric 15 wrapping the substrate 12 and the sound insulation layer 13 is fixed by a gun nail near the lower edge of the substrate 12.

[0040] A buffer layer 14 is further arranged between the sound insulation layer 13 and the surface fabric 15. The arrangement of the buffer layer 14 plays a buffering protection on the sound insulation layer 13, reducing the damage of direct impact on the sound insulation layer 13.

[0041] The buffer layer 14 is sponge. The inside of the sponge is composed of a large number of interconnected or closed pores. When compressed, the pore structure can reversibly compress and deform, converting external impact force into internal energy (such as vibration and friction) to consume, thereby reducing the energy of impact transmitted to the protected object. Compared with hard buffer materials (such as foamed plastic), the sponge still maintains good elastic recovery force after multiple impacts and is not easy to lose the buffering effect due to fatigue, especially suitable for long-term high-frequency vibration environment (such as automobile seats and sports protective equipment).

[0042] The sound insulation layer 13 is sound insulation felt. The sound insulation felt is usually made of butyl rubber, polyvinyl chloride (PVC) or high molecular polymer material, has high density (500-2000g / m 2 ), and can effectively block the air sound transmission according to the mass law. Especially for medium and low frequency noise (such as automobile engine sound, air conditioner vibration, floor impact sound and external traffic noise), the absorption and blocking effect is remarkable, which makes up for the deficiency of ordinary sound insulation cotton (which focuses on high frequency). The material itself has viscoelasticity, and when the sound wave hits, the internal molecular friction consumes energy, reducing the resonance effect of the board or wall.

[0043] The buckle 110 comprises a plurality of strut portions 110a arranged in a circumferential array, a clamping portion 110b fixedly connected to the outer periphery of the end portions of the strut portions 110a, and gaps 110c formed between the strut portions 110a.

[0044] The lower outer edge of the substrate 12 is provided with a boss portion 122. The boss portion 122 is arranged to clamp and limit the portion of the surface fabric 15 close to the lower edge of the substrate 12, thereby improving the stability of the surface fabric 15.

[0045] The specific use and effects of the embodiment are as follows:

[0046] In use, the buckle 110 is only needed to be aligned with the hole on the metal plate and clamped into the hole.

[0047] Embodiment Two:

[0048] The remaining features are the same as those of Embodiment One, except that the buffer layer 14 in this embodiment is rubber, and the sound insulation layer 13 is sound-absorbing cotton.

[0049] Compared with sponge, rubber has higher density (usually 1.0-1.5g / cm 3 ), a wide hardness range (Shore hardness 20A-90A), and can withstand higher load, while sponge has low density (0.02-0.1g / cm 3 ) and hardness mostly 20-40A, and is only suitable for light to medium load. The cross-linking structure of the molecular chain of rubber makes its tensile strength (5-30MPa) and tear strength (10-100kN / m) much higher than that of sponge (the tensile strength of sponge is usually <1MPa), and is suitable for scenarios requiring frequent stretching and tearing.

[0050] The embodiments of the present application are given for the purpose of illustration and description, and are not exhaustive or limit the present application to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and practical application of the present application, and to enable those of ordinary skill in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. An automotive interior panel having soundproofing and noise reduction functions, characterized by comprising: The utility model relates to a sound insulation board, including: A card board (11) is provided with at least one buckle (110) on the inner side, and the outer side is fixedly connected with at least two limiting columns (111), and the limiting column (111) is provided with a through hole (112) along the axis; Base plate (12) is provided with the limiting hole (121) with limiting column (111) cooperation; Nut (123) is arranged in the limiting hole (121), and the through hole (112) and the limiting hole (121) are threaded with the bolt and are screwed with the nut (123); Sound insulation layer (13) is arranged on the outer side of base plate (12); Surface layer fabric (15) is wrapped on the outer surface of base plate (12) and sound insulation layer (13).

2. The automotive interior panel with sound insulation and noise reduction function according to claim 1, characterized in that: The sound insulation layer (13) and the surface layer fabric (15) are further provided with a buffer layer (14) therebetween.

3. The automotive interior panel having sound insulation and noise reduction function according to claim 2, characterized in that: The buffer layer (14) is sponge or rubber.

4. The automotive interior panel having sound insulation and noise reduction function according to claim 1, characterized in that: The sound insulation layer (13) is sound insulation felt or sound absorption cotton.

5. The automotive interior panel having sound insulation and noise reduction function according to claim 1, characterized in that: The buckle (110) includes a plurality of support rod portions (110a) arranged in a circumferential array, a clamping portion (110b) fixedly connected to the outer periphery of the end portions of the support rod portions (110a), and gaps (110c) formed between the support rod portions (110a).

6. The automotive interior panel having sound insulation and noise reduction function according to claim 1, characterized in that: The lower outer edge of the base plate (12) is provided with a boss portion (122).

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