Sound insulation felt for automotive trim

Abstract

The utility model relates to the technical field of felts, in particular to an automobile interior sound insulation felt which comprises a base plate and a backflushing type sound insulation and noise reduction assembly, the backflushing type sound insulation and noise reduction assembly comprises a keel frame, a structural plate, a connecting plate and a sound insulation plate, the keel frame is detachably connected with the base plate and located above the base plate, and the structural plate is detachably connected with the keel frame and located above the sound insulation plate. The structural plate is fixedly connected with the keel frame and located above the keel frame, the connecting plate is fixedly connected with the structural plate and located above the structural plate, and the sound insulation plate is detachably connected with the connecting plate and located above the connecting plate. Therefore, the problem that the existing sound insulation felt cannot effectively perform sound insulation operation when facing continuous noise is actively and effectively solved while the structural strength of the original structure is reserved.

Description

Technical Field

[0001] The utility model relates to the technical field of felts, in particular to an automotive interior sound insulation felt. Background Art

[0002] Felt is made of wool and processed by bonding. It is elastic and can be used as materials for shock absorption, sealing, gaskets, and the base felt of elastic wire card clothing. Felt can be used for the interior decoration of automobiles for shock absorption and sound insulation. However, the existing automotive interior sound insulation felt is prone to breakage during use, resulting in a reduced service life of the sound insulation felt.

[0003] In the prior art, a patent number (CN202220635927.2) mentions an automotive interior sound insulation felt, which includes a sound insulation felt main body, a first fine felt layer, an adhesive layer, a second wool fiber, and a second reinforcement fiber. A first fine felt layer is provided on the sound insulation felt main body. An adhesive layer is provided on the inner side of the first fine felt layer. A first thick felt layer is provided on the inner side of the adhesive layer. A sound insulation cotton layer is provided on the inner side of the first thick felt layer. It is provided with strengthening holes and strengthening lines. The strengthening lines penetrate through the first thick felt layer, the sound insulation cotton layer, and the second thick felt layer through the strengthening holes to reinforce the connection between the thick felt layer and the sound insulation cotton layer, prevent loosening between the thick felt layer and the sound insulation cotton layer, increase the structural stability of the felt, improve the use effect, and through the winding effect of the strengthening lines, make the structures of the first thick felt layer and the second thick felt layer more compact, increase their structural strength, reduce the phenomenon of the felt breaking, and improve the service life of the device.

[0004] In the prior art, reinforcement fibers are added, thereby strengthening the overall structural stability of the felt, thus solving the problem that it is prone to breakage during use, resulting in a reduced service life of the sound insulation felt. However, its sound insulation function still adopts the traditional fiber-based sound wave dispersion sound insulation method. Therefore, in the face of continuous noise, effective sound insulation operations cannot be carried out. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an automotive interior sound insulation felt, which solves the problem that the existing sound insulation felt cannot effectively carry out sound insulation operations in the face of continuous noise.

[0006] To achieve the above object, an automotive interior sound insulation felt adopted by the present utility model includes a substrate and a back-flushing sound insulation and noise reduction component. The back-flushing sound insulation and noise reduction component includes a keel frame, a structural plate, a connecting plate, and a sound insulation board. The keel frame is detachably connected to the substrate and is located above the substrate. The structural plate is detachably connected to the keel frame and is located above the keel frame. The connecting plate is fixedly connected to the structural plate and is located above the structural plate. The sound insulation board is detachably connected to the connecting plate and is located above the connecting plate.

[0007] Among them, the back-flushing sound insulation and noise reduction component further includes a sound insulation block and an inverted chamfer. The sound insulation block is detachably connected to the sound insulation board and is located above the sound insulation board. The inverted chamfer is fixedly connected to the sound insulation block and is located inside the sound insulation block.

[0008] Among them, the back-flushing sound insulation and noise reduction component further includes an adhesion block and a positioning plate. The adhesion block is detachably connected to the substrate and is located at the center below the substrate. The positioning plate is fixedly connected to the substrate and is located below the substrate, and the positioning plate is arranged on one side of the adhesion block.

[0009] Among them, the back-flushing sound insulation and noise reduction component further includes a sound transmission plate and a sound transmission groove. The sound transmission plate is detachably connected to the sound insulation board and is located above the sound insulation board. The sound transmission groove is fixedly connected to the sound transmission plate and is located inside the sound transmission plate.

[0010] Among them, the back-flushing sound insulation and noise reduction component further includes a wool layer. The wool layer is detachably connected to the sound transmission plate and is located above the sound transmission plate.

[0011] An automotive interior sound insulation felt of the present utility model includes a substrate and a back-flushing sound insulation and noise reduction component. The back-flushing sound insulation and noise reduction component includes a keel frame, a structural plate, a connecting plate, and a sound insulation board. The keel frame is detachably connected to the substrate and is located above the substrate. The structural plate is detachably connected to the keel frame and is located above the keel frame. The connecting plate is fixedly connected to the structural plate and is located above the structural plate. The sound insulation board is detachably connected to the connecting plate and is located above the connecting plate. Since the original structure is replaced with a back-flushing sound insulation and noise reduction component, the problem that the existing sound insulation felt cannot effectively perform sound insulation operations when facing continuous noise is actively and effectively solved while retaining the structural strength of the original structure. Description of the Drawings

[0012] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the attached drawings required for the description of the embodiments or the prior art. Obviously, the attached drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these drawings.

[0013] Figure 1 is the structural schematic diagram of the whole of the present invention.

[0014] Figure 2 is the side view of the whole of the present invention.

[0015] Figure 3 is the bottom view of the whole of the present invention.

[0016] Figure 4 is the structural schematic diagram of the sound insulation block of the present invention.

[0017] 101 - Substrate, 102 - Adhesive block, 103 - Positioning plate, 104 - Skeleton, 105 - Structural plate, 106 - Connecting plate, 107 - Sound insulation board, 108 - Sound insulation block, 109 - Inverted chamfer, 110 - Sound transmission plate, 111 - Sound transmission groove, 112 - Wool layer. Detailed implementation manners

[0018] The following will describe in detail the embodiments of the present invention. The examples of the embodiments are shown in the attached drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the attached drawings are exemplary and are intended to explain the present invention, but should not be construed as a limitation to the present invention.

[0019] Please refer to Figures 1 to 4 , Figure 1 is the structural schematic diagram of the whole of the present invention, Figure 2 is the side view of the whole of the present invention, Figure 3 is the bottom view of the whole of the present invention, Figure 4 is the structural schematic diagram of the sound insulation block 108 of the present invention.

[0020] The utility model provides an automotive interior sound-insulating felt, which comprises a base plate 101 and a back-flushing sound-insulating and noise-reducing component. The back-flushing sound-insulating and noise-reducing component includes a keel frame 104, a structural plate 105, a connecting plate 106, a sound-insulating plate 107, a sound-insulating block 108, an inverted chamfer 109, an adhesive block 102, a positioning plate 103, a sound-transmitting plate 110, a sound-transmitting groove 111 and a wool layer 112. Through the foregoing solution, the problem that the existing sound-insulating felt cannot effectively perform sound-insulating operations in the face of continuous noise is solved. It can be understood that in the face of continuous noise inside the vehicle, the noise will pass through the wool layer 112 and enter the sound-transmitting plate 110 in the form of sound waves. The sound-transmitting groove 111 in the sound-transmitting plate 110 transmits the sound waves to the sound-insulating block 108. The inverted chamfer 109 in the sound-insulating block 108 is specifically set at an angle of 32.7°, which facilitates the rebound of sound waves. When facing continuous noise, the rebounding sound waves will neutralize the noise, thereby achieving the purpose of noise reduction. At the same time, the sound-insulating plate 107 is specifically composed of a foamed silica gel plate, which has the advantages of shock absorption, durability, environmental protection, fire prevention, etc. while effectively performing sound insulation. The connecting plate 106 is composed of a sound fiber board, and the sound fiber board is a board made of wood fibers or mineral fibers. Its fiber structure can effectively absorb sound, thereby effectively absorbing the noise that penetrates the sound-insulating block 108 and the sound-insulating plate 107. The structural plate 105 is composed of a 6061-type aluminum alloy plate, which not only retains the structural stability of the original structure but also effectively prevents the overall structure from breaking during long-term use, thus affecting the overall service life. During installation, the positioning plate 103 cooperates with the adhesive plate to adhere the base plate 101 inside the vehicle. Since the adhesive block 102 is adhesively installed, it is convenient to disassemble and replace the whole, thereby actively and effectively solving the problem that the existing sound-insulating felt cannot effectively perform sound-insulating operations in the face of continuous noise while retaining the beneficial effects of the original structure.

[0021] For this specific embodiment, the keel frame 104 is detachably connected to the substrate 101 and is located above the substrate 101. The structural plate 105 is detachably connected to the keel frame 104 and is located above the keel frame 104. The connecting plate 106 is fixedly connected to the structural plate 105 and is located above the structural plate 105. The sound insulation board 107 is detachably connected to the connecting plate 106 and is located above the connecting plate 106. The substrate 101 is composed of a mixture of polyethylene material and rubber material, thereby endowing the substrate 101 with sufficient structural strength and excellent ductility at the same time. The keel frame 104 is composed of polyester fiber, thereby endowing the whole with sufficient structural stability and cooperating with the structural plate 105 and the connecting plate 106 to perform sound insulation operations at the same time. The connecting plate 106 is composed of a sound fiber board, and the sound fiber board is a board made of wood fiber or mineral fiber. Its fiber structure can effectively absorb sound, thereby effectively absorbing the noise penetrating the sound insulation block 108 and the sound insulation board 107. The structural plate 105 is composed of 6061-type aluminum alloy plate, which can effectively prevent the whole from breaking during long-term use and affecting the overall service life while retaining the structural stability in the original structure.

[0022] Among them, the sound insulation block 108 is detachably connected to the sound insulation board 107 and is located above the sound insulation board 107. The inverted chamfer 109 is fixedly connected to the sound insulation block 108 and is located inside the sound insulation block 108. The inverted chamfer 109 in the sound insulation block 108 is specifically set at an angle of 32.7°, thereby facilitating the rebound of sound waves. For the sound waves rebounding in the face of continuous noise, they will neutralize the noise, thereby achieving the purpose of noise reduction.

[0023] Secondly, the adhesion block 102 is detachably connected to the substrate 101 and is located at the center below the substrate 101. The positioning plate 103 is fixedly connected to the substrate 101 and is located below the substrate 101. And the positioning plate 103 is arranged on one side of the adhesion block 102. During installation, the substrate 101 will be adhered inside the vehicle by the positioning plate 103 cooperating with the adhesion plate. Since the adhesion block 102 is installed in an adhesive manner, it will be convenient to disassemble and replace the whole.

[0024] At the same time, the sound transmission board 110 is detachably connected to the sound insulation board 107 and is located above the sound insulation board 107. The sound transmission groove 111 is fixedly connected to the sound transmission board 110 and is located inside the sound transmission board 110. The sound transmission board 110 is a structural component connecting the wool layer 112, which effectively cooperates with the wool layer 112 to beautify the overall appearance.

[0025] In addition, the wool layer 112 is detachably connected to the sound transmission board 110 and is located above the sound transmission board 110. The wool layer 112 is woven from wool fibers, effectively beautifying the overall appearance and giving people a good visual experience during use.

[0026] When using the present utility model to face the continuous noise inside the car, the noise will pass through the wool layer 112 and enter the sound transmission board 110 in the form of sound waves. The sound transmission grooves 111 in the sound transmission board 110 will transmit the sound waves to the sound insulation block 108. The inverted bevel angle 109 in the sound insulation block 108 is specifically set at an angle of 32.7°, which facilitates the rebound of the sound waves. When facing continuous noise, the rebounding sound waves will neutralize the noise, thereby achieving the purpose of noise reduction. At the same time, the sound insulation board 107 is specifically composed of a foamed silica gel board, which has the advantages of effective sound insulation, shock absorption, durability, environmental protection, fire prevention, etc. The connecting board 106 is composed of a sound fiber board, and the sound fiber board is a board made of wood fibers or mineral fibers. Its fiber structure can effectively absorb sound, thereby effectively absorbing the noise that penetrates the sound insulation block 108 and the sound insulation board 107. The structural board 105 is composed of an aluminum alloy board of type 6061, which retains the structural stability of the original structure and effectively prevents the overall structure from breaking during long-term use, thus affecting the overall service life. During installation, the positioning board 103 cooperates with the adhesive board to adhere the substrate 101 inside the car. Since the adhesive block 102 is installed in an adhesive manner, it is convenient to disassemble and replace the whole. Therefore, while retaining the beneficial effects of the original structure, it actively and effectively solves the problem that the existing sound insulation felt cannot effectively perform sound insulation operations when facing continuous noise.

[0027] The above-disclosed is only a preferred embodiment of the present utility model. Of course, it cannot be used to limit the scope of the rights of the present utility model. Those of ordinary skill in the art can understand the entire or partial processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present utility model still fall within the scope covered by the utility model.

Claims

1. A car interior sound insulation felt, comprising a substrate, characterized in that: It also includes a back-rebound sound insulation and noise reduction component, which includes a keel frame, a structural plate, a connecting plate and a sound insulation plate. The keel frame is detachably connected to the base plate and is located above the base plate. The structural plate is detachably connected to the keel frame and is located above the keel frame. The connecting plate is fixedly connected to the structural plate and is located above the structural plate. The sound insulation plate is detachably connected to the connecting plate and is located above the connecting plate.

2. The automobile interior sound insulation felt according to claim 1, characterized in that: The back-rebound sound insulation and noise reduction component also includes a sound insulation block and a chamfered angle. The sound insulation block is detachably connected to the sound insulation board and is located above the sound insulation board. The chamfered angle is fixedly connected to the sound insulation block and is located inside the sound insulation block.

3. The automobile interior sound insulation felt according to claim 2, characterized in that: The back-rebound sound insulation and noise reduction component also includes an adhesion block and a positioning plate. The adhesion block is detachably connected to the base plate and is located at the lower center of the base plate. The positioning plate is fixedly connected to the base plate and is located below the base plate, and the positioning plate is arranged on one side of the adhesion block.

4. The automobile interior sound insulation felt according to claim 3, characterized in that: The backwash type sound insulation and noise reduction component also includes a sound transmission plate and a sound transmission groove. The sound transmission plate is detachably connected to the sound insulation plate and is located above the sound insulation plate. The sound transmission groove is fixedly connected to the sound transmission plate and is located inside the sound transmission plate.

5. The automobile interior sound insulation felt according to claim 4, characterized in that: The backwash type sound insulation and noise reduction component also includes a wool layer, which is detachably connected to the sound transmission plate and is located above the sound transmission plate.

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