CN221250624U - New energy automobile instrument board with sound insulation and noise reduction effects - Google Patents

Abstract

The utility model relates to a new energy automobile instrument panel with sound insulation and noise reduction effects, which comprises an instrument panel upper body framework and an instrument panel lower body framework which are fixed by screw-nut reeds, and comprises the following components: the first noise reduction unit comprises a plurality of sponge strips positioned on the central defrosting air pipe and a plurality of sealing strips covering the front defrosting cover plate of the central defrosting air pipe; the second noise reduction unit comprises a rubber buffer bushing for buffering noise reduction and a sound absorption cotton glove box welded on the back; the third noise reduction unit comprises instrument panel soundproof cotton, instrument panel filling foam on one end of the instrument panel far away from the windshield of the automobile body, and A column air pipe sealing left sponge strips and A column air pipe sealing right sponge strips at two ends of the instrument panel. Compared with the prior art, the utility model effectively reduces noise and improves driving comfort and driving safety.

Description

New energy automobile instrument board with sound insulation and noise reduction effects

Technical Field

The utility model belongs to the technical field of automobile manufacturing, and particularly relates to a new energy automobile instrument board.

Background

The automobile instrument panel is used as a core part of an automobile instrument system, and the function of the automobile instrument panel is also improved obviously along with the transition of the times. Early automobile dashboards were relatively simple and consisted mainly of simple indicators and gauges. The instrument panel gradually starts to adopt digital display and popular indicator lamps from 60 s to 70 s of the 20 th century. In the 80 s, the development of electronic technology makes the driving instrument more accurate, multifunctional and readable, the liquid crystal display screen starts to be widely applied to the instrument panel, and the automobile instrument panel becomes more and more complex and has more functions. The research of the noise reduction direction is in the popularization process of the new energy vehicle, and the new energy vehicle enters the field of vision of people.

In the 21 st century, along with the development of intelligent and networking technologies, automobile dashboards begin to adopt interaction modes such as touch screens and voice control, and more humanized and accurate driving experience is achieved. New energy automobile. At the beginning of the 21 st century, new energy automobiles have attracted attention with increasing environmental awareness and increasing energy crisis. In 2003, europe has introduced a "zero emission" goal, which accelerates the development of new energy automobiles. In 2006, tesla corporation introduced the first electric sports car, successfully breaking the impression of people on electric cars. After that, new energy automobiles start to develop rapidly, governments of various countries bring out policies for encouraging the development of the new energy automobiles, and the popularization of the new energy automobiles is accelerated. And then, the sound absorbing cotton is creatively arranged in the wheels, so that the noise in the vehicle is greatly reduced, and the comfort level in the vehicle is improved. Research into vibration/noise reduction directions has been paid attention to.

Noise reduction of automobiles is a complex engineering technology, which refers to a plurality of acoustic principles and knowledge of materials, and aims to minimize noise in automobiles and improve riding comfort and driving experience in automobiles.

Currently, the mainstream noise reduction technologies of automobiles in the market mainly include three types: acoustic isolation, active noise reduction, and sound control. The active noise reduction and sound control system has high complex cost and is mainly applied to high-end luxury automobiles such as brands of running, BMW, audi and the like.

CN212861093U discloses a motormeter dish structure with sound insulation effect, including the panel board body, instrument mounting groove has been opened at the top of panel board body, connecting block jack-in groove has all been opened to the lateral wall about the panel board body, bolt fixing hole has all been opened to the top left and right sides of panel board body, and the bottom of bolt fixing hole runs through in the bottom of connecting block jack-in groove, the bottom of panel board body is through bolt fixed mounting has the acoustic celotex board. The invention is only provided with the sound insulation plate at the bottom of the instrument panel body, does not realize the combined use of a plurality of noise reduction technologies, and does not improve the riding comfort and driving experience in the vehicle.

Disclosure of utility model

The utility model aims to overcome the defects of the prior art and provide the novel energy automobile instrument board.

The aim of the utility model can be achieved by the following technical scheme:

The utility model provides a new energy automobile instrument board with effect of making an uproar falls in sound insulation, includes the fixed instrument board upper body skeleton of screw-nut reed and instrument board lower body skeleton, includes:

The first noise reduction unit comprises a plurality of sponge strips positioned on a central defrosting air pipe of an upper body framework of the instrument panel and a plurality of sealing strips covering a front defrosting cover plate of the central defrosting air pipe, wherein the back surface of the upper body framework of the instrument panel is provided with a plurality of positioning holes and reinforcing ribs for increasing the stability of the instrument panel (the stability of the upper body framework of the instrument panel can also reduce the generation of noise), and the instrument panel is connected with a pedal cover plate bonded with high-elasticity polyester foam or a density board (the high-elasticity polyester foam or the density board reduces the transmission and reflection of noise);

The second noise reduction unit comprises a rubber buffer bushing which is arranged at one end of the lower body framework of the instrument panel and used for buffering and reducing noise, and a glove box which is connected with the lower body framework of the instrument panel and is provided with sound-absorbing cotton, wherein the sound-absorbing cotton is welded on the back surface of the glove box and can reduce noise, a resistor used for reducing the opening speed of the glove box and a buffer nail used for reducing the noise generated by closing the glove box are arranged on the glove box, and the glove box is also called as a storage box;

The third noise reduction unit comprises instrument panel soundproof cotton welded at the joint of the instrument panel upper framework and the instrument panel lower framework (the soundproof cotton is made of polyester fiber board materials, a large number of tiny communicated holes are formed in the soundproof cotton, sound waves can enter the inside of the materials along the holes, friction action is generated between the sound waves and the materials to convert sound energy into heat energy, the sound absorption mechanism of a sound absorber structure formed by the polyester fiber board and a cavity body is thin plate resonance sound absorption, the sound energy is absorbed greatly due to intense vibration of the thin plate at resonance frequency, the sound absorption performance is good for middle and high frequency, so that the noise reduction effect is achieved), instrument panel filling foam at one end of the instrument panel, which is far away from a windshield of a vehicle body, and A column air pipes at two ends of the instrument panel seal left sponge strips and A column air pipes seal right sponge strips (the sponge strips are in contact with the vehicle body, a hard-soft-hard contact mode is structurally realized, and the transmission of noise can be effectively blocked, and vibration and deformation of the instrument panel are reduced).

Further, the front defrosting cover plate comprises a cover plate body, and a left air outlet and a right air outlet which are arranged on the cover plate body, wherein a front defrosting cover plate air outlet right sealing strip is arranged on the left air outlet, a front defrosting cover plate air outlet left sealing strip is arranged on the right air outlet, and a compact sealing strip can reduce wind noise to achieve the purpose of sound insulation.

Furthermore, a front defrosting cover plate sealing strip is arranged between the front defrosting cover plate and the front windshield of the automobile body, and the sealing strip arranged at the front defrosting cover plate sealing strip not only plays a role in sealing, but also can cause noise in front of the automobile.

Further, an intermediate air port grid assembly is arranged at the joint of the upper framework of the instrument panel and the lower framework of the instrument panel; the central defrosting air pipe comprises a central defrosting air pipe body, a left defrosting air pipe which is positioned at the left side of the central defrosting air pipe body and provided with a defrosting air pipe left sealing sponge strip, a right defrosting air pipe which is positioned at the right side of the central defrosting air pipe body and provided with a defrosting air pipe right sealing sponge strip, and a front middle air distributor and a rear middle air distributor which are positioned at the front and the rear of the central defrosting air pipe body and provided with a plurality of sponge strips.

Furthermore, the left defrosting air duct and the right defrosting air duct are fixed on two sides of the central defrosting air duct body through screw-nut reeds.

Further, a right sealing sponge strip of the wind distributor and a left sealing sponge strip of the wind distributor for sound insulation and noise reduction are arranged on the rear middle wind distributor, the rear middle wind distributor supplies air to the middle wind gap grille assembly, and the rear middle wind distributor supplies air to the front defrosting cover plate.

Further, an air outlet surface pipe for air outlet is arranged on the middle air port grille assembly, and the rear middle air distributor supplies air to the air outlet surface pipe.

Further, the front defrost cover plate is connected with the 3D flash and covers the central defrost air duct.

Still further, 3D mesh includes 3D mesh body and is located 3Dmash grooves at 3D mesh both ends, and this 3D mesh groove is used for installing with the lower body skeleton butt joint of instrument board, has left filling foam and right filling foam (this foam is used for the noise that the whole part of instrument board produced) at its 3D mesh groove both ends distribution.

Further, an airbag frame is welded to the instrument panel upper frame, and the welding mode can prevent noise.

Compared with the prior art, the utility model has the following advantages:

(1) The application adopts novel sound insulation materials, such as high-elasticity polyester foam, density boards and the like, and is used in the structure of the instrument board, thereby reducing the transmission and reflection of noise.

(2) The structural design adopted by the application, such as a fixing mode adopting a hard-soft-hard contact mode, adding a hexagonal reinforcing rib design on the back surface of the supporting structure, and the like, increases the stability and rigidity of the instrument panel and reduces the noise.

(3) Compared with the traditional noise reduction technology, the application adopts the components such as the foam blocks, the resistors, the buffer nails and the like to reduce the impact, and has higher technical reliability, more obvious noise reduction effect and more economical efficiency.

(4) The application improves the driving experience: the automobile instrument board adopting the acoustic isolation technology can reduce noise interference caused by absorption and reflection, so that the environment in the automobile is quieter and more comfortable, and the experience of driving and riding is improved.

(5) The application enhances the sound effect: the automobile instrument board adopting the acoustic isolation technology can avoid the interference and influence of environmental noise on sound equipment, thereby enhancing the tone quality effect and improving the experience of listening to music and talking.

(6) The application protects the vehicle body and the engine: the automobile instrument panel using the acoustic isolation technology can reduce damage of vibration and noise to the automobile body and the engine, thereby prolonging the service life of the automobile.

(7) The application improves the air quality in the vehicle: the automobile instrument panel using the acoustic isolation technology can reduce external noise, vibration and invasion of pollutants, thereby improving the air quality in the automobile and protecting the health of drivers and passengers.

(8) The application increases the cost performance of the vehicle: the automobile instrument board using the acoustic isolation technology can improve the quality and comfort level of an automobile, so that the cost performance of the automobile instrument board is improved, and the market competitiveness is improved.

Drawings

Fig. 1 is a schematic view showing a part of the structure of a noise reduction automobile instrument panel according to the present utility model in embodiment 1.

Reference numerals in the drawings:

1-front defrosting cover plate sealing strips, 2-front defrosting cover plates, 3-front defrosting cover plate air outlet left sealing strips, 4-front defrosting cover plate air outlet right sealing strips, 5-3D flash tank, 6-3D flash, 7-A column air pipe sealing left sponge strips, 8-A column air pipe sealing right sponge strips, 9-instrument board upper framework, 10-left filling foam, 11-right filling foam, 12-air bag frames, 13-instrument board soundproof cotton, 14-air distributor left sealing sponge strips, 15-air distributor right sealing sponge strips, 16-defrosting air channel left sealing sponge strips, 17-left defrosting air channels, 18-rear middle air distributors, 19-front middle air distributors, 20-right defrosting air channels, 21-defrosting air channel right sealing sponge strips, 22-blowing face air pipes, 23-middle air inlet grille assemblies, 24-rubber buffer bushings and 25-instrument board front end filling foam.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present utility model is not limited to the following examples.

In the following embodiments or examples, unless otherwise specified, functional components or structures are indicated as conventional components or structures employed in the art to achieve the corresponding functions.

In order to effectively reduce noise and improve driving comfort and driving safety, the utility model provides a new energy automobile instrument panel, which comprises an instrument panel upper body framework 9 and an instrument panel lower body framework fixed by screw-nut reeds, wherein the structure is shown in fig. 1, and the new energy automobile instrument panel comprises:

The first noise reduction unit comprises a plurality of sponge strips positioned on a central defrosting air pipe of the upper body framework 9 of the instrument panel and a plurality of sealing strips covering a front defrosting cover plate 2 of the central defrosting air pipe, wherein the back surface of the upper body framework 9 of the instrument panel is provided with a plurality of positioning holes and reinforcing ribs for increasing the stability of the instrument panel (the upper body framework of the instrument panel can be stabilized and noise can be reduced), and the instrument panel is connected with a pedal cover plate bonded with high-elasticity polyester foam or a density board (the high-elasticity polyester foam or the density board reduces noise transmission and reflection);

The second noise reduction unit comprises a rubber buffer bushing 24 which is arranged at one end of the lower body framework of the instrument panel and is used for buffering and reducing noise, and a glove box which is connected with the lower body framework of the instrument panel and is provided with sound-absorbing cotton (the sound-absorbing cotton is welded on the back surface of the glove box and can reduce noise generation), wherein a resistor used for slowing down the opening speed of the glove box and a buffer nail used for reducing noise generated by closing the glove box are further arranged on the glove box;

The third noise reduction unit comprises an instrument panel soundproof cotton 13 welded at the joint of the instrument panel upper framework 9 and the instrument panel lower framework, wherein the soundproof cotton is made of a polyester fiber board material, a large number of tiny communicated holes are formed in the soundproof cotton, sound waves can enter the material along the holes, friction is generated between the sound waves and the material to convert sound energy into heat energy, the sound absorption mechanism of a sound absorber structure formed by the polyester fiber board and a cavity body is thin plate resonance sound absorption, the sound energy is absorbed greatly due to intense vibration of the thin plate at the resonance frequency, the middle and high frequency have good sound absorption performance, so that the noise reduction effect is achieved, the instrument panel on one end of the instrument panel far away from a windshield of a vehicle body is filled with foam cotton 25, and the A column air pipe at two ends of the instrument panel is in contact with the vehicle body through a left sponge strip 7 and a column air pipe sealing right sponge strip 8, a hard-soft-hard contact mode is structurally realized, the spread of noise can be effectively blocked, and vibration and deformation of the instrument panel upper framework 9 and the instrument panel lower framework are provided with an intermediate air port grille assembly 23.

In some specific embodiments, please refer to fig. 1 again, the front defrosting cover plate 2 includes a cover plate body, and a left air outlet and a right air outlet on the cover plate body, the left air outlet is provided with a front defrosting cover plate air outlet right sealing strip 4, the right air outlet is provided with a front defrosting cover plate air outlet left sealing strip 3, the compact sealing strip can reduce wind noise, and achieve the purpose of sound insulation, and the sealing strip installed here not only plays a sealing role but also can reduce noise caused by vibration of parts.

In a more specific embodiment, referring to fig. 1 again, a front defrost cover sealing strip 1 is disposed between the front defrost cover 2 and the front windshield of the vehicle, and the sealing strip installed therein not only performs a sealing function but also reduces noise caused in front of the vehicle.

In a more specific embodiment, referring to fig. 1 again, a middle air inlet grille assembly 23 is disposed at the connection position of the upper framework 9 and the lower framework of the instrument panel; the central defrosting air pipe comprises a central defrosting air pipe body, a left defrosting air duct 17 which is positioned at the left side of the central defrosting air pipe body and provided with a defrosting air duct left sealing sponge strip 16, a right defrosting air duct 20 which is positioned at the right side of the central defrosting air pipe body and provided with a defrosting air duct right sealing sponge strip 21, and a front middle air distributor 19 and a rear middle air distributor 18 which are positioned at the front and the rear of the central defrosting air pipe body and provided with a plurality of sponge strips.

In a more specific embodiment, referring to fig. 1 again, the left side defrosting air duct 17 and the right side defrosting air duct 20 are fixed to both sides of the central defrosting air duct body by screw-nut reeds.

In a more specific embodiment, referring to fig. 1 again, the rear middle air distributor 18 is provided with a distributor right sealing sponge strip 15 and a distributor left sealing sponge strip 14 for sound insulation and noise reduction, the rear middle air distributor 18 supplies air to the middle air port grille assembly 23, and the rear middle air distributor 18 supplies air to the front defrosting cover plate 2.

In a more specific embodiment, referring again to fig. 1, the intermediate air port grille assembly 23 is provided with an air outlet face pipe 22 for discharging air, and the rear intermediate air splitter 18 supplies air to the air outlet face pipe 22.

In some embodiments, referring again to fig. 1, the front defrost cover 2 is connected to a 3d masher 6 and covers the central defrost air duct.

In a more specific embodiment, referring to fig. 1 again, the 3D mashing 6 includes a 3D mashing body and 3D mashing grooves 5 located at two ends of the 3D mashing 6, the 3D mashing grooves 5 are configured to be installed in a butt joint with the lower body skeleton of the instrument panel, and left filling foam 10 and right filling foam 11 are distributed at two ends of the 3D mashing grooves 5.

In some specific embodiments, referring to fig. 1, an airbag frame 12 is welded to the upper instrument panel skeleton 9, and the welding method can prevent noise.

The above embodiments may be implemented singly or in any combination of two or more.

The above embodiments are described in more detail below in connection with specific examples.

Example 1

In order to effectively reduce noise and improve driving comfort and driving safety, the utility model provides a new energy automobile instrument panel, which comprises an instrument panel upper body framework 9 and an instrument panel lower body framework fixed by screw-nut reeds, wherein the structure is shown in fig. 1, and the new energy automobile instrument panel comprises:

The first noise reduction unit comprises a plurality of sponge strips positioned on a central defrosting air pipe of the upper body framework 9 of the instrument panel and a plurality of sealing strips covering a front defrosting cover plate 2 of the central defrosting air pipe, wherein the back surface of the upper body framework 9 of the instrument panel is provided with a plurality of positioning holes and reinforcing ribs for increasing the stability of the instrument panel (the stability of the upper body framework of the instrument panel can also reduce the generation of noise), and the instrument panel is connected with a pedal guard plate bonded with high-elasticity polyester foam (the high-elasticity polyester foam reduces the transmission and reflection of noise);

The second noise reduction unit comprises a rubber buffer bushing 24 which is arranged at one end of the lower body framework of the instrument panel and used for buffering and reducing noise, and a glove box which is connected with the lower body framework of the instrument panel and is provided with sound-absorbing cotton (the sound-absorbing cotton is welded on the back surface of the glove box and can reduce noise generation), wherein a resistor used for reducing the opening speed of the glove box and a buffer nail used for reducing noise generated by closing the glove box are also arranged on the glove box;

The third noise reduction unit comprises an instrument panel soundproof cotton 13 welded at the joint of an instrument panel upper framework 9 and an instrument panel lower framework, wherein the soundproof cotton is made of a polyester fiber board material, a large number of tiny communicated holes are formed in the soundproof cotton, sound waves can enter the material along the holes, friction is generated between the sound waves and the material to convert sound energy into heat energy, the sound absorption mechanism of a sound absorber structure formed by the polyester fiber board and a cavity body is that a thin plate resonates and absorbs sound energy, the sound absorber structure absorbs sound energy in a large amount due to intense vibration of the thin plate at the resonance frequency, the middle and high frequency have good sound absorption performance, so that the noise reduction effect is achieved, an instrument panel filling foam 25 at one end of the instrument panel, far away from a windshield of a vehicle body, and an A column air pipe sealing left sponge strip 7 and an A column air pipe sealing right sponge strip 8 at two ends of the instrument panel are in contact with the vehicle body, a hard-soft-hard contact mode is structurally realized, the transmission of noise can be effectively blocked, and vibration and deformation are reduced, and an intermediate air port grille assembly 23 is arranged between the instrument panel upper framework 9 and the instrument panel lower framework.

Referring to fig. 1 again, the front defrosting cover plate 2 includes a cover plate body, and a left air outlet and a right air outlet on the cover plate body, a right sealing strip 4 of the front defrosting cover plate air outlet is installed on the left air outlet, a left sealing strip 3 of the front defrosting cover plate air outlet is installed on the right air outlet, the compact sealing strip can reduce wind noise, and the purpose of sound insulation is achieved.

Referring to fig. 1 again, a front defrost cover sealing strip 1 is provided between a front defrost cover 2 and a front windshield of a vehicle body, and the sealing strip installed therein not only performs a sealing function but also reduces noise caused in front of the vehicle.

Referring to fig. 1 again, an intermediate air port grille assembly 23 is provided at the junction of the upper instrument panel frame 9 and the lower instrument panel frame; the central defrosting air pipe comprises a central defrosting air pipe body, a left defrosting air duct 17 which is positioned at the left side of the central defrosting air pipe body and provided with a defrosting air duct left sealing sponge strip 16, a right defrosting air duct 20 which is positioned at the right side of the central defrosting air pipe body and provided with a defrosting air duct right sealing sponge strip 21, and a front middle air distributor 19 and a rear middle air distributor 18 which are positioned at the front and the rear of the central defrosting air pipe body and provided with a plurality of sponge strips.

Referring to fig. 1 again, the left side defrost duct 17 and the right side defrost duct 20 are secured to both sides of the central defrost duct body by screw-nut reeds.

Referring again to fig. 1, the rear middle air distributor 18 is provided with a distributor right sealing sponge strip 15 and a distributor left sealing sponge strip 14 for sound insulation and noise reduction, the rear middle air distributor 18 supplies air to the middle air port grille assembly 23, and the rear middle air distributor 18 supplies air to the front defrosting cover plate 2.

Referring to fig. 1 again, the intermediate air port grille assembly 23 is provided with an air outlet face pipe 22 for outlet air, and the rear intermediate air splitter 18 supplies air to the air outlet face pipe 22.

Referring again to fig. 1, the front defrost cover plate 2 is connected to the 3d masher 6 and covers the central defrost air duct.

Referring to fig. 1 again, the 3D mashing 6 includes a 3D mashing body and 3D mashing grooves 5 located at two ends of the 3D mashing 6, the 3D mashing grooves 5 are configured to be butt-jointed with a lower body skeleton of the instrument panel, and left filling foam 10 and right filling foam 11 are distributed at two ends of the 3D mashing grooves 5.

Referring again to fig. 1, an airbag frame 12 is welded to the instrument panel upper frame 9 in such a manner as to prevent noise generation.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present utility model. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present utility model is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present utility model.

Claims (10)

1. The utility model provides a new energy automobile instrument board with effect of making an uproar falls in sound insulation, includes instrument board upper body skeleton (9) and instrument board lower body skeleton that uses screw-nut reed to fix, its characterized in that includes:

the first noise reduction unit comprises a plurality of sponge strips positioned on a central defrosting air pipe of an upper body framework (9) of the instrument board and a plurality of sealing strips covering a front defrosting cover plate (2) of the central defrosting air pipe, wherein the back of the upper body framework (9) of the instrument board is provided with a plurality of positioning holes and reinforcing ribs for increasing the stability of the instrument board, and the instrument board is connected with a pedal guard plate bonded with high-elasticity polyester foam or a density board;

The second noise reduction unit comprises a rubber buffer bushing (24) which is arranged at one end of the lower body framework of the instrument panel and used for buffering and reducing noise, and a glove box which is connected with the lower body framework of the instrument panel and provided with sound absorbing cotton;

the third noise reduction unit comprises instrument board soundproof cotton (13) welded at the joint of the instrument board upper body framework (9) and the instrument board lower framework, instrument board filling foam (25) at one end of the instrument board far away from the windshield of the automobile body, and A column air pipe sealing left sponge strips (7) and A column air pipe sealing right sponge strips (8) at two ends of the instrument board.

2. The new energy automobile instrument panel with the sound insulation and noise reduction effects according to claim 1, wherein the front defrosting cover plate (2) comprises a cover plate body, a left air outlet and a right air outlet which are positioned on the cover plate body, a front defrosting cover plate air outlet right sealing strip (4) is arranged on the left air outlet, and a front defrosting cover plate air outlet left sealing strip (3) is arranged on the right air outlet.

3. The new energy automobile instrument panel with the sound insulation and noise reduction effects according to claim 2 is characterized in that a front defrosting cover plate sealing strip (1) is arranged between the front defrosting cover plate (2) and a front windshield of an automobile body.

4. The new energy automobile instrument panel with the sound insulation and noise reduction effects according to claim 1 is characterized in that an intermediate air port grid assembly (23) is arranged at the joint of the upper instrument panel body framework (9) and the lower instrument panel framework; the central defrosting air pipe comprises a central defrosting air pipe body, a left defrosting air pipe (17) which is positioned at the left side of the central defrosting air pipe body and provided with a defrosting air pipe left sealing sponge strip (16), a right defrosting air pipe (20) which is positioned at the right side of the central defrosting air pipe body and provided with a defrosting air pipe right sealing sponge strip (21), and a front middle air distributor (19) and a rear middle air distributor (18) which are respectively positioned at the front end and the rear end of the central defrosting air pipe body and provided with a plurality of sponge strips.

5. The new energy automobile instrument panel with sound insulation and noise reduction effects according to claim 4, wherein the left defrosting air duct (17) and the right defrosting air duct (20) are fixed on two sides of the central defrosting air duct body through screw-nut reeds.

6. The new energy automobile instrument panel with the sound insulation and noise reduction effects according to claim 4, wherein a right sealing sponge strip (15) and a left sealing sponge strip (14) of the rear middle air distributor (18) are arranged on the rear middle air distributor (18), the rear middle air distributor (18) supplies air to the middle air port grid assembly (23), and the rear middle air distributor (18) supplies air to the front defrosting cover plate (2).

7. The new energy automobile instrument panel with the sound insulation and noise reduction effects according to claim 6, wherein an air outlet face pipe (22) for air outlet is arranged on the middle air port grille assembly (23), and the rear middle air distributor (18) supplies air to the air outlet face pipe (22).

8. The new energy automobile instrument panel with sound insulation and noise reduction effects according to claim 1, wherein the front defrosting cover plate (2) is connected with the 3D mesh (6) and covers the central defrosting air pipe.

9. The new energy automobile instrument panel with the sound insulation and noise reduction effects according to claim 8, wherein the 3D mesh (6) comprises a 3D mesh body and 3D mesh grooves (5) positioned at two ends of the 3D mesh (6), the 3D mesh grooves (5) are used for being installed in a butt joint mode with an instrument panel lower body framework, and left filling foam (10) and right filling foam (11) are distributed at two ends of the 3D mesh grooves (5).

10. The new energy automobile instrument panel with the sound insulation and noise reduction effects according to claim 1 is characterized in that an airbag frame (12) is welded on an upper body framework (9) of the instrument panel, and the welding mode can prevent noise.