Sound-insulation and heat-insulation liner for front cabin cover

Abstract

The utility model discloses a sound-insulation and heat-insulation liner for a front cabin cover. The sound-insulation and heat-insulation liner comprises the front cabin cover and an inner liner, a lining plate is arranged in the front hatch cover, a fixing hole is formed in the lining plate, an inner liner is fixed to the lining plate, a first protruding part is arranged in the middle of the inner liner, a plurality of second protruding parts are distributed on the two sides of the first protruding part, and second ventilation holes are formed in the front portion and the rear portion of the first protruding part. The inner liner is arranged on the inner side of the lining plate of the front cabin cover, the first protruding part is located over an engine to play a role in heat preservation, temperature loss is prevented during cold start, the temperature of engine oil is rapidly increased, engine abrasion is reduced, the second protruding part can preserve heat and insulate sound, and the sound insulation and heat insulation effect in a front cabin is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sound insulation and heat insulation pads for automobile front hoods, and in particular relates to a sound insulation and heat insulation pad for front hoods. Background Art

[0002] The engine is located in the front cabin of the car. During cold start, the engine oil temperature is low and cannot fully lubricate the internal components of the engine. This is the time when the engine is most worn. Therefore, it is necessary to prevent the temperature in the front cabin from losing and make the oil temperature rise quickly to fully lubricate the engine. The front cabin is also where the loudest noise is generated. If the sound insulation effect of the front cabin cover is poor, the noise will enter the car and reduce driving comfort. In order to reduce noise, improve comfort and increase the heating rate of the engine oil during cold start, a front cabin cover sound insulation and heat insulation pad is provided. Utility Model Content

[0003] In view of this, the technical problem to be solved by the present invention is to provide a sound insulation and heat insulation pad for a front cabin cover, so as to solve the problem of high noise and poor thermal insulation performance in the front cabin in the prior art.

[0004] In order to solve the above technical problems, the utility model discloses a front hood sound insulation and heat insulation pad, including: a front hood and an inner lining pad; a lining plate is provided inside the front hood, the lining plate is provided with fixing holes, the inner lining pad is fixed to the lining plate, a raised portion 1 is provided in the middle of the inner lining pad, a plurality of raised portions 2 are distributed on both sides of the raised portion 1, and ventilation holes 2 are provided in front and behind the raised portion 1.

[0005] Furthermore, the raised portion is raised toward the inner surface of the inner liner.

[0006] Furthermore, the raised portion is provided with an adhesive layer, a sound insulation layer, a heat preservation layer and an aluminum foil layer in sequence from the outside to the inside.

[0007] Furthermore, the second raised portion is raised toward the inner and outer surfaces of the inner liner.

[0008] Furthermore, the second raised portion is provided with a vibration-stop layer, a sound-absorbing layer, a sound-isolating layer, a sound-absorbing layer and an aluminum foil layer in sequence from the outside to the inside.

[0009] Compared with the existing technology, this application can achieve the following technical effects:

[0010] The utility model provides an inner lining pad on the inner side of the lining plate of the front cabin cover. The first raised portion is located directly above the engine to keep the engine warm, prevent temperature loss during cold start, quickly increase the temperature of the engine oil, and reduce engine wear. The second raised portion can keep the engine warm and soundproof, further improving the sound and heat insulation effects in the front cabin.

[0011] Of course, any product implementing this application does not necessarily need to achieve all the technical effects described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0013] Figure 1 This is a schematic diagram of a lining plate of a front hatch cover according to one embodiment of the present invention;

[0014] Figure 2 It is a schematic diagram of an inner lining plate according to one embodiment of the present invention;

[0015] Figure 3 is a schematic cross-sectional view of a raised portion 1 according to an embodiment of the present invention;

[0016] Figure 4 It is a schematic cross-sectional view of the raised portion 2 according to one embodiment of the present invention.

[0017] Figure ID

[0018] Inner lining 1, lining plate 2, ridge one 3, ridge two 4, ventilation hole two 5, adhesive layer 6, sound insulation layer 7, thermal insulation layer 8, aluminum foil layer 9, shock-absorbing layer 10, sound-absorbing layer 11, mounting hole 20, through hole 21, ventilation hole one 22. DETAILED DESCRIPTION

[0019] The following will describe the implementation methods of the present application in detail with reference to the accompanying drawings and examples, so that the implementation process of how the present application applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0020] Please refer to Figures 1 to 4 , Figure 1 This is a schematic diagram of a lining plate of a front hatch cover according to one embodiment of the present invention; Figure 2 It is a schematic diagram of an inner lining plate according to one embodiment of the present invention; Figure 3 is a schematic cross-sectional view of a raised portion 1 according to an embodiment of the present invention; Figure 4 It is a schematic cross-sectional view of the raised portion 2 according to one embodiment of the present invention.

[0021] A front hood sound insulation and heat insulation pad comprises: a front hood and an inner liner 1; a lining plate 2 is provided inside the front hood, the lining plate 2 is provided with fixing holes, the inner liner 1 is fixed to the lining plate 2, a raised portion 3 is provided in the middle of the inner liner 1, a plurality of raised portions 4 are distributed on both sides of the raised portion 3, and ventilation holes 5 are provided in front and behind the raised portion 3.

[0022] The raised portion 3 is raised toward the inner surface of the inner liner 1, and is provided with an adhesive layer 6, a sound insulation layer 7, a thermal insulation layer 8 and an aluminum foil layer 9 in sequence from the outside to the inside of the raised portion 3; the raised portion 2 4 is raised toward the inner and outer surfaces of the inner liner 1, and is provided with a shock-absorbing layer 10, a sound absorption layer 11, a sound insulation layer 7, a sound absorption layer 11 and an aluminum foil layer 9 in sequence from the outside to the inside of the raised portion 2 4.

[0023] A decorative cover mounting hole 20 is located in the center of the lining plate 2. Four through-holes 21 are located on either side of the mounting hole, arranged in a rectangular array. Ventilation holes 22 are located in front and behind the mounting hole 20. A raised portion 3 on the inner liner 1, located at the mounting hole 20, enhances the sound and heat insulation of the decorative cover. One side of the raised portion 4 is embedded in the ventilation hole 22. The vibration-damping layer 10 of the raised portion 4 adheres to the inner surface of the hood. Noise is absorbed by the sound-absorbing layer 11, buffering its propagation path. The vibration-damping layer 10 also rebounds the sound waves, reducing their propagation out of the hood.

[0024] The sound insulation layer 7 is made of glass fiber cotton, the heat preservation layer 8 is made of PET foam cotton, the aluminum foil layer 9 is made of aluminum film, the shock-absorbing layer 10 is made of a rubber pad with a diamond grid pattern on the surface, and the sound-absorbing layer 11 is a rubber-plastic foam surface with holes on the surface.

[0025] The utility model provides an inner lining 1 on the inner side of the lining plate 2 of the front cabin cover, and the raised portion 3 is located directly above the engine to play a role in heat preservation, prevent temperature loss during cold start, quickly increase the temperature of the engine oil, and reduce engine wear. The raised portion 2 4 can keep warm and soundproof, further improving the sound and heat insulation effects in the front cabin.

[0026] The above description shows and describes several preferred embodiments of the present invention. However, as previously mentioned, it should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the present invention as taught herein or through the techniques or knowledge in the relevant field. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A front hood sound insulation and heat insulation pad, comprising: front hatch and liner; It is characterized in that a lining plate is provided inside the front hood, a fixing hole is provided on the lining plate, the inner lining is fixed to the lining plate, a raised portion 1 is provided in the middle of the inner lining plate, a plurality of raised portions 2 are distributed on both sides of the raised portion 1, and ventilation holes 2 are provided in front and behind the raised portion 1.

2. The front hood sound insulation and heat insulation pad according to claim 1, characterized in that: The raised portion bulges toward the inner surface of the inner liner.

3. The front hood sound and heat insulation pad according to claim 2, characterized in that: The raised portion is provided with an adhesive layer, a sound insulation layer, a heat preservation layer and an aluminum foil layer in sequence from the outside to the inside.

4. The front hood sound and heat insulation pad according to claim 1, characterized in that: The second raised portion rises toward the inner and outer surfaces of the inner liner.

5. The front hood sound and heat insulation pad according to claim 4, characterized in that: The second raised portion is provided with a shock-absorbing layer, a sound-absorbing layer, a sound-isolating layer, a sound-absorbing layer and an aluminum foil layer in sequence from the outside to the inside.

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