Sound absorption pad for automobile cover

Abstract

The utility model discloses an automobile cover sound-absorbing pad which comprises a sound-absorbing pad body, the sound-absorbing pad body is provided with a central sound-absorbing part, a left sound-absorbing part and a right sound-absorbing part, the central sound-absorbing part is arranged at an interval and protrudes, the left sound-absorbing part and the right sound-absorbing part are located on the two sides, the center of the central sound-absorbing part is provided with a concave circular sound-absorbing part, and the circular sound-absorbing part is guided to the lower edge of the sound-absorbing pad body through a straight groove part; the main positioning hole is formed between the left sound absorption part and the central sound absorption part; the auxiliary positioning hole is formed between the right sound absorption part and the central sound absorption part; the fixed sealing edge extends to the edge of the sound absorption pad body and is provided with a plurality of mounting buckle holes, and the mounting buckle holes are used for mounting the fixed buckles; wherein the central sound-absorbing part, the left sound-absorbing part and the right sound-absorbing part are filled with honeycomb inner cores, and the honeycomb inner cores are made of EVA (Ethylene Vinyl Acetate) plates. The thickened central sound absorption part, the thickened left sound absorption part and the thickened right sound absorption part are arranged on the sound absorption pad body at intervals, the sound absorption effect is improved, and meanwhile sound absorption is further enhanced through the round sound absorption parts; the fixing buckles are installed on the fixing sealing edges to be matched with the positioning holes and the positioning grooves to enhance the assembling stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile sound absorption pad, concretely relates to an automobile engine cover sound absorption pad. BACKGROUND

[0002] The sound absorption pad for vehicle is a sound insulation and heat insulation material package designed to achieve the NVH performance of the whole vehicle, such as the front wall sound insulation pad, the carpet, the engine compartment cover heat insulation cotton, the ceiling sound absorption cotton, the spare tire cover plate and the like; it is a kind of inner lining pad assembly that can effectively block the transmission of noise in the propagation process and play a heat insulation effect. At present, the sound insulation pad is formed by using whole PU hot-pressed non-woven fabric, although it plays a protective heat insulation role, but the noise absorption is poor, especially for the engine part of the shaking work, the sound insulation effect is greatly weakened, in addition, the whole vehicle is also caused by the influence of the self power component or the external environment temperature Heat deformation, the overall strength and durability are affected. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the utility model wants to solve the technical problem to provide an automobile engine cover sound absorption pad for avoiding the previous automobile inner lining pad into a single piece, the sound absorption effect is weak, and the overall stability is poor.

[0004] In order to solve the above technical problem, the utility model discloses an automobile engine cover sound absorption pad, which comprises:

[0005] The sound absorption pad body has a central sound absorption part and left and right sound absorption parts arranged at intervals and protruding, the center of the central sound absorption part is provided with a recessed circular sound absorption part, and the circular sound absorption part is guided to the lower edge of the sound absorption pad body through a straight groove part;

[0006] The main positioning hole is arranged between the left sound absorption part and the central sound absorption part;

[0007] The vice positioning hole is arranged between the right sound absorption part and the central sound absorption part;

[0008] The fixed sealing edge extends to the edge of the sound absorption pad body, and the fixed sealing edge is provided with a plurality of mounting buckle holes for mounting the fixed buckle;

[0009] The central sound absorption part, the left sound absorption part and the right sound absorption part are filled with a honeycomb inner core, and the honeycomb inner core is made of an EVA plate.

[0010] According to one embodiment of the utility model, the circular sound absorption part is provided with a plurality of protruding step parts.

[0011] According to one embodiment of the utility model, the upper edge of the sound absorption pad body is further provided with a positioning groove.

[0012] According to one embodiment of the utility model, the fixed buckle is provided with a plurality of inverted buckles.

[0013] Compared with the prior art, the automobile engine hood sound-absorbing pad can obtain the following technical effects:

[0014] The thickened central sound-absorbing part, the left sound-absorbing part and the right sound-absorbing part are arranged on the sound-absorbing pad body in a spaced manner, the sound-absorbing effect is improved, and the circular sound-absorbing part further enhances sound absorption; the fixing of the fixed edge installation is enhanced by the cooperation of the positioning hole and the positioning groove.

[0015] Of course, any product implementing the utility model does not necessarily need to achieve all the technical effects described above. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the utility model, form a part of the utility model and are incorporated herein to constitute a part of the utility model. The illustrative embodiments of the utility model and their descriptions serve to explain the utility model and do not constitute an improper limitation on the utility model. In the drawings:

[0017] Figure 1 is a schematic view of the automobile engine hood sound-absorbing pad of the utility model embodiment;

[0018] Figure 2 is a schematic view of the fixed edge installation of the utility model embodiment.

[0019] IDENTIFICATION OF DRAWINGS

[0020] The sound-absorbing pad body 10, the central sound-absorbing part 11, the left sound-absorbing part 12, the right sound-absorbing part 13, the circular sound-absorbing part 20, the straight groove part 21, the main positioning hole 31, the auxiliary positioning hole 32, the fixed edge 40, the fixed buckle 50 and the positioning groove 60. DETAILED DESCRIPTION

[0021] The implementation of the utility model will be described in detail below in combination with the drawings and the embodiments, so that the implementation process of how the utility model applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented.

[0022] Please refer to Figure 1 and Figure 2 , Figure 1 is a schematic view of the automobile engine hood sound-absorbing pad of the utility model embodiment; Figure 2 is a schematic view of the fixed edge installation of the utility model embodiment.

[0023] As shown in the figure, a car hood sound-absorbing pad includes: a sound-absorbing pad body 10, the sound-absorbing pad body 10 having a central sound-absorbing portion 11 that is spaced apart and raised, and left and right sound-absorbing portions 12 and 13 located on both sides, a recessed circular sound-absorbing portion 20 being provided at the center of the central sound-absorbing portion 11, and the circular sound-absorbing portion 20 being guided to the lower edge of the sound-absorbing pad body 10 through a straight groove portion 21; a main positioning hole 31 being provided between the left sound-absorbing portion 12 and the central sound-absorbing portion 11; a secondary positioning hole 32 being provided between the right sound-absorbing portion 13 and the central sound-absorbing portion 11; and a fixed edge seal 40 extending from the edge of the sound-absorbing pad body 10, the fixed edge seal 40 being provided with a plurality of mounting buckle holes for mounting fixing buckles 50.

[0024] In one embodiment of the present invention, the sound-absorbing pad body 10 is made of PU foam and features three spaced-apart sound-absorbing sections: a central sound-absorbing section 11, a left sound-absorbing section 12, and a right sound-absorbing section 13. These three sections are thickened and spaced apart to effectively reduce noise resonance and improve sound absorption efficiency. Furthermore, a recessed circular sound-absorbing section 20 is located in the center of the central sound-absorbing section 11, forming a hood-like shape to enhance sound absorption. This section is also guided toward the lower edge of the pad body 10 via a straight groove 21.

[0025] The main positioning hole 31 and the auxiliary positioning hole 32 are located between the central sound absorbing portion 11 and the left sound absorbing portion 12 and the right sound absorbing portion 13 to enhance positioning during installation.

[0026] The fixed edge seal 40 extends to the edge of the sound-absorbing pad body 10 to seal the edge. It is provided with a plurality of mounting holes for mounting the fixing buckle 50. The fixing buckle 50 is provided with multiple undercuts to enhance stability.

[0027] The central sound absorbing part 11 , the left sound absorbing part 12 and the right sound absorbing part 13 are all filled with a honeycomb inner core, which is made of an EVA board and has a good sound absorption effect. The filling thickness is 2-4 mm.

[0028] The circular sound absorbing portion 20 of the present invention is provided with multiple circles of raised step portions arranged in a circular shape, which can block noise leakage and has a better noise absorption effect.

[0029] In addition, a positioning groove 60 is provided on the upper edge of the sound-absorbing pad body 10 to enhance the upper end positioning and assist in installation.

[0030] In summary, the present invention improves the sound absorption effect by arranging thickened central sound-absorbing parts 11, left sound-absorbing parts 12 and right sound-absorbing parts 13 at intervals on the sound-absorbing pad body 10, while the circular sound-absorbing parts 20 further enhance the sound absorption; the fixed edge band 40 is installed with the fixed buckle 50 to cooperate with the positioning hole and positioning groove 60 to enhance the stability of the assembly.

[0031] The above description shows and describes several preferred embodiments of the present application, but as previously described, it should be understood that the present application is not limited to the forms disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application conceived herein, by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the claims of the present application.

Claims

1. An automotive hood acoustical mat, characterized by, The utility model relates to an acoustic absorption pad, comprising: an acoustic absorption pad body having a centrally arranged and protruding central acoustic absorption part and left and right acoustic absorption parts arranged on both sides, the center of the central acoustic absorption part being provided with a recessed circular acoustic absorption part, the circular acoustic absorption part being guided to the lower edge of the acoustic absorption pad body through a straight groove part; a main positioning hole arranged between the left acoustic absorption part and the central acoustic absorption part; a secondary positioning hole arranged between the right acoustic absorption part and the central acoustic absorption part; a fixed sealing edge extending along the edge of the acoustic absorption pad body, the fixed sealing edge being provided with a plurality of mounting buckle holes for mounting a fixed buckle; wherein the central acoustic absorption part, the left acoustic absorption part and the right acoustic absorption part are all filled with a honeycomb inner core made of an EVA plate.

2. The automotive hood acoustical mat of claim 1, wherein, wherein the circular acoustic absorption part is provided with a plurality of protruding step parts.

3. The automotive hood acoustical mat of claim 1, wherein, wherein the upper edge of the acoustic absorption pad body is further provided with a positioning groove.

4. The automotive hood acoustical mat of claim 1, wherein, wherein the fixed buckle is provided with a plurality of inverted buckles.

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