An automotive engine compartment sound insulation and heat insulation foaming board

Abstract

The present invention provides a sound-insulating and heat-insulating foaming board for an automobile engine compartment, which comprises a closed-cell foaming board layer, an open-cell foaming board layer, a vacuum heat-insulating board layer, a sound-absorbing cotton, and several inserting posts. The vacuum heat-insulating board layer has a laterally opened cavity. The closed-cell foaming board layer and the open-cell foaming board layer both form an opening spaced channel along the transverse direction with the inner side wall of the laterally opened cavity of the vacuum heat-insulating board layer. A part of the inserting posts is arranged between the left longitudinal side wall of the open-cell foaming board layer and the left longitudinal side wall of the laterally opened cavity, a part of the inserting posts is arranged between the transverse side wall of the open-cell foaming board layer and the top side wall of the laterally opened cavity, and another part is arranged between the right longitudinal side wall of the open-cell foaming board layer and the right longitudinal side wall of the laterally opened cavity. The sound-absorbing cotton is filled in the opening spaced channel. Compared with the prior art, due to the adoption of such a structure, by setting the opening spaced channel and combining with the structures of the sound-absorbing cotton and several inserting posts, the sound-insulating and heat-insulating performances can be further improved, and it is convenient to use.

Description

Technical Field

[0001] The present invention relates to a sound insulation and heat insulation foaming board for an automobile engine compartment. Background Art

[0002] Currently, in the prior art, there is a sound insulation and heat insulation foaming board for an automobile engine compartment, which includes a closed-cell foaming board layer and an open-cell foaming board layer. The bottom plane of the open-cell foaming board layer is closely attached to the top plane of the closed-cell foaming board layer. The closed-cell foaming board layer is arranged towards the automobile engine compartment, and the open-cell foaming board layer is arranged away from the automobile engine compartment. The problem with it is that the sound insulation and heat insulation effects are not good.

[0003] Therefore, the present invention provides a sound insulation and heat insulation foaming board for an automobile engine compartment. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the purpose of the present invention is to provide a sound insulation and heat insulation foaming board for an automobile engine compartment to improve the sound insulation and heat insulation performance.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] A sound insulation and heat insulation foaming board for an automobile engine compartment includes a closed-cell foaming board layer, an open-cell foaming board layer. The bottom plane of the open-cell foaming board layer is closely attached to the top plane of the closed-cell foaming board layer. The closed-cell foaming board layer is arranged towards the automobile engine compartment, and the open-cell foaming board layer is arranged away from the automobile engine compartment. It further includes a vacuum heat insulation board layer, a sound-absorbing cotton, and several insertion posts. The vacuum heat insulation board layer has a side opening cavity. Both the closed-cell foaming board layer and the open-cell foaming board layer form an open interval channel along the transverse direction with the inner side wall of the side opening cavity of the vacuum heat insulation board layer. A part of the insertion posts is arranged between the left longitudinal side wall of the open-cell foaming board layer and the left longitudinal side wall of the side opening cavity, a part of the insertion posts is arranged between the transverse side wall of the open-cell foaming board layer and the top side wall of the side opening cavity, and another part is arranged between the right longitudinal side wall of the open-cell foaming board layer and the right longitudinal side wall of the side opening cavity. The sound-absorbing cotton is filled in the open interval channel.

[0007] The sound insulation and heat insulation foaming board for an automobile engine compartment is characterized in that: the insertion post is provided with a sound transmission hole. The sound transmission hole includes a first hole portion arranged along the central axis of the insertion post and several second hole portions penetrating through the side wall of the insertion post. The first hole portion and the second hole portions are communicated with each other. The open end of the first hole portion is arranged towards the cavity wall of the side opening cavity, and the open end of each second hole portion is arranged towards the side wall of the sound-absorbing cotton.

[0008] The sound insulation and heat insulation foaming board for an automobile engine compartment is characterized in that: there are three second hole portions. The three second hole portions are located on the same side of the central axis of the insertion post, and the open ends of two adjacent second hole portions are equidistantly and alternately arranged on the side wall of the insertion post.

[0009] For the sound insulation and heat insulation foaming board of the automobile engine compartment, its special feature lies in that: there are two second hole parts, and the two second hole parts are symmetrically arranged on the left and right sides of the plug post located on the central axis of the plug post.

[0010] As described above, a sound insulation and heat insulation foaming board of an automobile engine compartment involved in the present invention has the following beneficial effects:

[0011] After the present invention uses the above-mentioned sound insulation and heat insulation foaming board of the automobile engine compartment, compared with the prior art, due to adopting such a structure, by setting the opening interval channels and combining with the structure settings of the sound-absorbing cotton and several plug posts, the sound insulation and heat insulation performances can be further improved, and it is convenient to use.

[0012] The following further explains the present invention in conjunction with specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of the first specific embodiment of a sound insulation and heat insulation foaming board of an automobile engine compartment;

[0014] Figure 2 It is a schematic structural diagram of the first specific embodiment of a sound insulation and heat insulation foaming board of an automobile engine compartment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0016] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical essential meanings. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of narration and are not used to limit the scope under which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change of the technical content, should also be regarded as the scope within which the present invention can be implemented. The specific structure can be described with reference to the drawings of the patent application.

[0017] In the following embodiments, the left side of the paper surface is defined as the left direction, the right side of the paper surface is defined as the right direction, the upper side of the paper surface is defined as the upper direction, the lower side of the paper surface is defined as the lower direction, the front side perpendicular to the paper surface is defined as the front direction, and the rear side perpendicular to the paper surface is defined as the rear direction.

[0018] The present invention provides a sound-insulating and heat-insulating foamed board for an automobile engine compartment. Please refer to Figure 1 and Figure 2 As shown, it includes a closed-cell foamed board layer 1 and an open-cell foamed board layer 2. The bottom plane of the open-cell foamed board layer 2 is closely attached to the top plane of the closed-cell foamed board layer 1. The closed-cell foamed board layer 1 is arranged towards the automobile engine compartment, and the open-cell foamed board layer 2 is arranged away from the automobile engine compartment. It also includes a vacuum heat-insulating board layer 3, a sound-absorbing cotton 4, and several inserting columns 5. The vacuum heat-insulating board layer 3 has a side opening cavity 30. Both the closed-cell foamed board layer 1 and the open-cell foamed board layer 2 form an open interval channel 31 along the transverse direction with the inner side wall of the side opening cavity 30 of the vacuum heat-insulating board layer 3. A part of the inserting columns 5 is arranged between the left longitudinal side wall of the open-cell foamed board layer 2 and the left longitudinal side wall of the side opening cavity 30, a part of the inserting columns 5 is arranged between the transverse side wall of the open-cell foamed board layer 2 and the top side wall of the side opening cavity 30, and another part is arranged between the right longitudinal side wall of the open-cell foamed board layer 2 and the right longitudinal side wall of the side opening cavity 30. The sound-absorbing cotton 4 is filled in the open interval channel 31. Compared with the prior art, due to the adoption of this structure, by setting the open interval channel 31 and combining the structure of the sound-absorbing cotton 4 and several inserting columns 5, the sound-insulating and heat-insulating performance can be further improved, and it is convenient to use.

[0019] Combined with Figure 1 or Figure 2 As shown, in this embodiment, the inserting column 5 is provided with a sound transmission hole 50. The sound transmission hole 50 includes a first hole portion 50a arranged along the central axis of the inserting column 5 and several second hole portions 50b penetrating through the side wall of the inserting column. The first hole portion 50a and the second hole portions 50b are communicated with each other. The open end of the first hole portion 50a is arranged towards the cavity wall of the side opening cavity 30, and the open end of each second hole portion 50b is arranged towards the side wall of the sound-absorbing cotton 4.

[0020] The first specific embodiment, combined with Figure 1 As shown, in this embodiment, there are three second hole portions 50b. The three second hole portions 50b are located on the same side of the central axis of the inserting column 5, and the open ends of two adjacent second hole portions 50b are arranged on the side wall of the inserting column 5 at equal intervals.

[0021] The second specific embodiment, combined with Figure 2 As shown, in this embodiment, there are two second hole portions 50b. The two second hole portions 50b are symmetrically arranged on the left and right sides of the inserting column 5 located on the central axis of the inserting column 5.

[0022] As described above, a sound-insulating and heat-insulating foamed board for an automobile engine compartment involved in the present invention has the following beneficial effects:

[0023] After the sound insulation and heat insulation foaming board for the engine compartment of the vehicle is used in the present invention, compared with the prior art, due to the adoption of such a structure, by setting the opening spaced channels and combining with the structure of the sound absorption cotton and several inserting columns, the sound insulation and heat insulation performance can be further improved and it is convenient to use.

[0024] In summary, the present invention effectively overcomes various disadvantages in the prior art and has high industrial utilization value.

[0025] The above embodiments are only used to illustrate the principle and its effects of the present invention, rather than to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. An automotive engine compartment sound insulation and heat insulation foaming board, comprising a closed-cell foaming board layer and an open-cell foaming board layer. The bottom plane of the open-cell foaming board layer is closely attached to the top plane of the closed-cell foaming board layer. The closed-cell foaming board layer is arranged towards the automotive engine compartment, and the open-cell foaming board layer is arranged away from the automotive engine compartment. It is characterized in that: It further includes a vacuum insulation panel layer, a sound-absorbing cotton, and several insertion posts. The vacuum insulation panel layer has a laterally opened cavity. The closed-cell foam panel layer and the open-cell foam panel layer both form an open spaced channel along the lateral direction with the inner side wall of the laterally opened cavity of the vacuum insulation panel layer. A part of the insertion posts is arranged between the left longitudinal side wall of the open-cell foam panel layer and the left longitudinal side wall of the laterally opened cavity, a part of the insertion posts is arranged between the lateral side wall of the open-cell foam panel layer and the top side wall of the laterally opened cavity, and another part is arranged between the right longitudinal side wall of the open-cell foam panel layer and the right longitudinal side wall of the laterally opened cavity. The sound-absorbing cotton is filled in the open spaced channel.

2. The sound insulation and heat insulation foaming board for the engine compartment of an automobile according to claim 1, wherein: The insertion post is provided with a sound transmission hole. The sound transmission hole includes a first hole portion arranged along the central axis of the insertion post and several second hole portions penetrating through the side wall of the insertion post. The first hole portion and the second hole portions are communicated with each other. The open end of the first hole portion is arranged towards the cavity wall of the laterally opened cavity, and the open end of each of the second hole portions is arranged towards the side wall of the sound-absorbing cotton.

3. The sound insulation and heat insulation foaming board for the engine compartment of an automobile according to claim 2, characterized in that: There are three second hole portions. The three second hole portions are located on the same side of the central axis of the insertion post, and the open ends of two adjacent second hole portions are arranged on the side wall of the insertion post at equal intervals.

4. The sound and heat insulation foamed board for the engine compartment of an automobile according to claim 2, characterized in that: There are two second hole portions. The two second hole portions are symmetrically arranged on the left and right sides of the insertion post located on the central axis of the insertion post.

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