Sound insulation pad assembly in front wall of new energy automobile

Abstract

The utility model relates to the technical field of sound insulation pads, and discloses a new energy automobile front wall inner sound insulation pad assembly which comprises a fixing frame, a connecting frame fixedly installed in the fixing frame, a steel wire mesh fixedly installed in the connecting frame and four positioning frames fixedly installed in the fixing frame. The four positioning frames are installed in the fixing frame, so that the positioning frames can well fix the sound insulation cotton and the flame-retardant layer, and then the second positioning holes and the third positioning holes are formed in the heat insulation cotton and the flame-retardant layer correspondingly, so that after the heat insulation cotton and the flame-retardant layer are installed in the fixing frame, the heat insulation cotton and the flame-retardant layer are fixed through the positioning frames. A worker inserts a positioning bolt into a second positioning hole formed in the sound insulation cotton, so that the positioning bolt penetrates through a first positioning hole, the second positioning hole and a third positioning hole, the sound insulation cotton and the flame-retardant layer are fixed, and compared with a traditional glue fixing mode, the fixing mode is more stable.

Description

Technical Field

[0001] This utility model relates to the field of sound insulation pad technology, specifically to a sound insulation pad assembly for the front bulkhead of a new energy vehicle. Background Technology

[0002] Automotive soundproofing involves meticulously addressing noise generated by the car engine, vibrations and resonances between the tires and the ground, and friction noises from components inside the cabin due to gaps or aging, based on the vehicle's performance and road conditions, in order to improve the comfort of the car ride.

[0003] In traditional sound insulation assemblies, the flame-retardant layer and the sound insulation layer inside the sound insulation pad are usually bonded together with glue. However, due to the high temperature in the engine compartment, the glue usually melts. Moreover, melted glue is not environmentally friendly. Therefore, the connection between the sound insulation cotton and the flame-retardant layer inside the sound insulation pad assembly is not very stable. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sound insulation pad assembly for the front bulkhead of a new energy vehicle. This addresses the problem mentioned in the background section that the flame-retardant layer and the sound insulation layer in traditional sound insulation pad assemblies are generally bonded together with adhesive. However, due to the high temperature in the engine compartment, the adhesive usually melts, and melting adhesive is not environmentally friendly. Therefore, this results in an unstable connection between the sound insulation cotton and the flame-retardant layer in the sound insulation pad assembly.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sound insulation pad assembly for the front bulkhead of a new energy vehicle, comprising a fixing frame, a connecting frame fixedly installed within the fixing frame, a wire mesh fixedly installed within the connecting frame, four positioning frames fixedly installed within the fixing frame, the four positioning frames arranged in a rectangular array within the fixing frame, each of the four positioning frames having a first positioning hole, sound insulation cotton provided at the front end of the fixing frame, four second positioning holes provided on the sound insulation cotton, the four second positioning holes arranged in a rectangular array on the sound insulation cotton, and a flame-retardant layer provided at the rear end of the fixing frame, four third positioning holes provided on the flame-retardant layer, the four third positioning holes arranged in a rectangular array on the flame-retardant layer.

[0006] Using the above technical solution, the steel wire mesh installed inside the connecting frame can effectively prevent broken parts in the vehicle's cabin during a collision. The sound insulation cotton and flame retardant layer installed inside the fixing frame can effectively absorb and block noise, and the flame retardant layer can effectively retard flames. The four positioning frames installed inside the fixing frame can effectively fix the sound insulation cotton and flame retardant layer.

[0007] Preferably, positioning bolts are inserted into the first positioning hole, the second positioning hole, and the third positioning hole, and the positioning bolts can fix the sound insulation cotton and the flame retardant layer in the fixing frame.

[0008] By using the above technical solution, the positioning bolt is inserted into the second positioning hole opened in the sound insulation cotton, so that the positioning bolt passes through the first positioning hole, the second positioning hole and the third positioning hole, thereby fixing the sound insulation cotton and the flame retardant layer. Compared with the traditional glue fixing method, this fixing method is more stable.

[0009] Preferably, four connecting blocks are fixedly installed on the fixing frame. The four connecting blocks are arranged in a rectangular array on the fixing frame. Each of the four connecting blocks has a fixing hole, and a fixing bolt is inserted into each fixing hole.

[0010] Using the above technical solution, the four fixing holes on the four connecting blocks of the fixing frame can effectively fix the sound insulation pad assembly with fixing bolts.

[0011] Preferably, the sound-absorbing cotton has multiple evenly distributed sound-absorbing holes, and the sound-absorbing cotton is made of polyester fiber.

[0012] By adopting the above technical solution, multiple evenly distributed sound-absorbing holes are set inside the sound insulation cotton, so that noise can enter the sound insulation cotton through the sound-absorbing holes, thereby effectively absorbing the noise. Furthermore, since the sound insulation cotton is made of polyester fiber, the production cost is reduced, and it also has good corrosion resistance.

[0013] Preferably, the flame-retardant layer is chloroprene rubber with aluminum hydroxide.

[0014] By adopting the above technical solution, the aluminum hydroxide in the flame retardant layer ensures the flame retardant effect while being more environmentally friendly than halogenated flame retardants.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The sound insulation pad assembly inside the front bulkhead of this new energy vehicle has four positioning frames installed in the fixing bracket. This allows the positioning frames to effectively fix the sound insulation cotton and flame retardant layer. The heat insulation cotton and flame retardant layer are respectively provided with second and third positioning holes. After the heat insulation cotton and flame retardant layer are installed in the fixing bracket, the workers insert positioning bolts into the second positioning holes in the sound insulation cotton, so that the positioning bolts pass through the first, second, and third positioning holes, thereby fixing the sound insulation cotton and flame retardant layer. Compared with the traditional glue fixing method, this fixing method is more stable.

[0017] 2. The sound insulation pad assembly inside the front bulkhead of this new energy vehicle has multiple evenly distributed sound-absorbing holes inside the sound insulation cotton. This allows noise to enter the sound insulation cotton through the sound-absorbing holes, thus effectively absorbing the noise. Furthermore, since the sound insulation cotton is made of polyester fiber, it significantly reduces production costs and also has good corrosion resistance. The aluminum hydroxide in the flame-retardant layer ensures the flame-retardant effect while being more environmentally friendly than halogenated flame retardants. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the sound insulation pad inside the front bulkhead of the automobile according to this utility model;

[0019] Figure 2 This is a schematic diagram of the exploded structure of the automotive front bulkhead inner sound insulation pad assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the automotive front bulkhead inner sound insulation pad assembly of this utility model;

[0021] Figure 4 This is a front view structural diagram of the automotive front bulkhead inner sound insulation pad assembly of this utility model.

[0022] In the diagram: 1. Fixing frame; 2. Connecting frame; 3. Wire mesh; 4. Positioning frame; 5. First positioning hole; 6. Sound insulation cotton; 7. Second positioning hole; 8. Flame retardant layer; 9. Third positioning hole; 10. Positioning bolt; 11. Connecting block; 12. Fixing hole; 13. Fixing bolt. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Referring to Figures 1-4, a sound insulation pad assembly for the front bulkhead of a new energy vehicle is described. A connecting frame 2 is fixedly installed within the fixing frame 1. A wire mesh 3 is fixedly installed within the connecting frame 2. Four positioning frames 4 are fixedly installed within the fixing frame 1, arranged in a rectangular array. Each of the four positioning frames 4 has a first positioning hole 5. Sound insulation cotton 6 is provided at the front end of the fixing frame 1, and four second positioning holes 7 are provided on the sound insulation cotton 6, arranged in a rectangular array. A flame-retardant layer 8 is provided at the rear end of the fixing frame 1, and four third positioning holes 9 are provided on the flame-retardant layer 8, arranged in a rectangular array. Positioning bolts 10 are inserted into the first positioning holes 5, second positioning holes 7, and third positioning holes 9, which secure the sound insulation cotton 6 and the flame-retardant layer 8 within the fixing frame 1.

[0026] Working principle: The wire mesh 3 installed in the connecting frame 2 and the wire mesh 3 installed in the fixing frame 1 can effectively block broken parts in the car cabin during a collision. The sound insulation cotton 6 and flame retardant layer 8 installed in the fixing frame 1 can effectively absorb and block noise, and the flame retardant layer 8 can effectively retard flames. Four positioning frames 4 are installed in the fixing frame 1, which can effectively fix the sound insulation cotton 6 and flame retardant layer 8. The heat insulation cotton and flame retardant layer 8 have second positioning holes 7 and third positioning holes 9 respectively. After the heat insulation cotton and flame retardant layer 8 are installed in the fixing frame 1, the operator inserts the positioning bolt 10 into the second positioning hole 7 of the sound insulation cotton 6, so that the positioning bolt 10 passes through the first positioning hole 5, the second positioning hole 7 and the third positioning hole 9, thereby fixing the sound insulation cotton 6 and flame retardant layer 8. Compared with the traditional glue fixing method, this fixing method is more stable.

[0027] Example 2:

[0028] Referring to Figures 1-4, a sound insulation pad assembly for the front bulkhead of a new energy vehicle is described. Four connecting blocks 11 are fixedly installed on the mounting frame 1. The four connecting blocks 11 are arranged in a rectangular array on the mounting frame 1. Each of the four connecting blocks 11 has a fixing hole 12, and a fixing bolt 13 is inserted into each fixing hole 12. The sound insulation cotton 6 has multiple evenly distributed sound-absorbing holes. The sound insulation cotton 6 is made of polyester fiber. The flame retardant layer 8 is made of chloroprene rubber with aluminum hydroxide.

[0029] Working principle: The four fixing holes 12 on the four connecting blocks 11 of the fixing frame 1 can be used to fix the sound insulation pad assembly with fixing bolts 13. Then, there are multiple evenly distributed sound absorption holes in the sound insulation cotton 6. Therefore, noise can enter the sound insulation cotton 6 through the sound absorption holes, thus effectively absorbing the noise. Since the sound insulation cotton 6 is made of polyester fiber, the production cost is reduced and it also has good corrosion resistance. The aluminum hydroxide in the flame retardant layer 8 ensures the flame retardant effect and is more environmentally friendly than halogenated flame retardants.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy automobile front wall inner sound insulation pad assembly, comprising a fixing frame (1), characterized in that: The fixed frame (1) is fixedly installed with a connecting frame (2), the connecting frame (2) is fixedly installed with a steel wire mesh (3), the fixed frame (1) is fixedly installed with four positioning frames (4), four positioning frames (4) are arranged in a rectangular array in the fixed frame (1), four positioning frames (4) are provided with first positioning holes (5), the front end of the fixed frame (1) is provided with sound insulation cotton (6), the sound insulation cotton (6) is provided with four second positioning holes (7), four second positioning holes (7) are arranged in a rectangular array on the sound insulation cotton (6), the rear end of the fixed frame (1) is provided with a fire-retardant layer (8), the fire-retardant layer (8) is provided with four third positioning holes (9), four third positioning holes (9) are arranged in a rectangular array on the fire-retardant layer (8).

2. The new energy automobile front wall inner sound insulation pad assembly according to claim 1, characterized in that: The first positioning hole (5), the second positioning hole (7) and the third positioning hole (9) are inserted with a positioning bolt (10), the positioning bolt (10) can fix the sound insulation cotton (6) and the fire-retardant layer (8) in the fixed frame (1).

3. The new energy automobile front wall inner sound insulation pad assembly according to claim 1, characterized in that: The fixed frame (1) is fixedly installed with four connecting blocks (11), four connecting blocks (11) are arranged in a rectangular array on the fixed frame (1), four connecting blocks (11) are provided with fixed holes (12), and the fixed holes (12) are inserted with fixed bolts (13).

4. The new energy automobile front wall inner sound insulation pad assembly according to claim 1, characterized in that: The sound insulation cotton (6) is provided with a plurality of uniformly distributed sound absorption holes, and the sound insulation cotton (6) is made of polyester fiber material.

5. The new energy automobile front wall inner sound insulation pad assembly according to claim 1, characterized in that: The fire-retardant layer (8) is aluminum hydroxide chloroprene rubber.

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