Support for electric sound generator

By designing a bracket for electric sound generators, the problem that electric vehicles cannot achieve sound effects and vibration is solved, high-quality sound effects transmission and vibration is achieved, and the sound effects experience of electric vehicles is improved.

CN120171433APending Publication Date: 2025-06-20HYUNDAI MOTOR CO LTD +1
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Patent Information

Application Number
CN202311745003.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-12-18
Publication Date
2025-06-20

AI Technical Summary

Technical Problem

Electric vehicles cannot achieve sound effects and vibration similar to internal combustion engine cars through the existing technology, and the use of speakers to increase bass is high, affecting the sound field and music experience, and cannot achieve vibration.

Method used

A bracket for electric sound generators is designed, including a bracket body, upper rubber pad and lower rubber pad. The bracket body is fixed to the vehicle body. The rubber pad provides cushioning and surface matching to ensure the optimal acoustic and mechanical connection between the electric sound generator and the vehicle body.

Benefits of technology

Through this bracket, electric vehicles can realize the low-frequency motion of the internal combustion engine and the vibration of the engine when combustion, providing a variety of exciting sound effects, improving the rigidity and sound quality of sound effects transmission, and avoiding abnormal sounds.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The invention relates to a support for an electric sound generator. The support comprises a support body, an upper rubber pad and a lower rubber pad. The end part of the bracket main body is connected with a vehicle body of a vehicle; the upper rubber pad is arranged on the upper surface of the bracket main body; the lower rubber pad is installed on the lower portion of the support body, makes contact with the electric sound generator and provides buffering between the support body and the electric sound generator. The bracket avoids a resonance point of an electric vehicle body, so that the assembly rigidity is improved, the structural rigidity is increased, and a rubber damper is arranged, so that a surface matching structure can be formed on the mounting surface between the bracket and the electric sound generator, and abnormal sound can be prevented.
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Description

Technical Field

[0001] The present invention relates to a support structure, particularly a bracket for an electric sound generator. Background Art

[0002] With the improvement of people's living conditions, the performance requirements for automobiles are also getting higher and higher.

[0003] In the prior art, an internal combustion engine vehicle generates the sound of driving through engine combustion and exhaust sound. When the dynamic sound generated by the vehicle's own engine combustion is insufficient, a sports muffler or a vehicle body vibrator can be used as an auxiliary structure to generate auxiliary sound. In some cases, the vehicle can also generate auxiliary sound through a speaker.

[0004] So far, electric vehicles mainly achieve sound effects through in-vehicle speakers. The problem with achieving sound effects through in-vehicle speakers is that since there is no internal combustion engine installed, electric vehicles cannot achieve sound effects and vibration sensations that can excite the driver. Moreover, an electric vehicle will not be equipped with an additional internal combustion engine because it does not have an internal combustion engine for generating sound effects, as the vehicle's assembly space is insufficient and this will increase unnecessary costs. When using a speaker to achieve sound effects in an electric vehicle, bass is added to high-end speakers to achieve the grandeur of an internal combustion engine vehicle. However, the method of adding bass to such expensive speakers will result in too high costs and thus lack market competitiveness. At the same time, when listening to music using a speaker, this arrangement will affect the sound field and reduce the music experience. Moreover, although sound effects can be achieved through a speaker, vibration sensations cannot be achieved.

[0005] Therefore, the use of an electric sound generator has been proposed to achieve the sound effects and vibration sensations of electric vehicles. However, the subsequent problem is how to install the electric sound generator on an electric vehicle so that the sound effects and vibration sensations transmitted to the vehicle body reach the best.

[0006] The information disclosed in the background section of the present invention is only intended to enhance the understanding of the overall background of the present invention, and should not be regarded as an admission or any form of implication that this information constitutes the prior art already known to those of ordinary skill in the art. Summary of the Invention

[0007] In order to overcome the above problems in the prior art, the present invention provides a bracket for an electric sound generator, which is used to achieve the structural sound effects and vibration sensations of an electric vehicle.

[0008] To achieve the above object, an embodiment of the present invention provides a bracket for an electric sound generator, the bracket including a bracket main body, an upper rubber pad, and a lower rubber pad; an end of the bracket main body is fixedly installed on a vehicle body; the upper rubber pad is disposed on an upper surface of the bracket main body; the lower rubber pad is installed at a lower portion of the bracket main body, contacts the electric sound generator, and provides buffering between the bracket main body and the electric sound generator.

[0009] Preferably, the bracket main body is a plate member with a cross-section in the shape of a reversed L, and the bracket main body includes a bottom plate and two side plates extending upward from both sides of the bottom plate.

[0010] Preferably, the bottom plate is disposed in a horizontal direction, and a lower surface of the bottom plate is formed into an upward concave curved surface corresponding to an upper surface of the electric sound generator.

[0011] Preferably, ends of the bottom plate and the two side plates of the bracket main body are welded to a front bulkhead of an electric vehicle.

[0012] Preferably, the bottom plate is provided with a central hole for the electric sound generator and an anti-rotation pin hole, the central hole is located at the center of the bottom plate, and the anti-rotation pin hole and the central hole are spaced apart.

[0013] Preferably, a shape of the lower rubber pad is adapted to a shape of the bracket main body, the lower rubber pad includes a bottom surface combined with a lower surface of the bottom plate and a side surface combined with an outer surface of the side plate; the lower rubber pad is provided with through holes corresponding to the central hole and the anti-rotation pin hole of the bottom plate; a lower surface of the lower rubber pad is provided with a plurality of buffer protrusions.

[0014] Preferably, a shape of the upper rubber pad corresponds to a shape of the bracket main body, the upper rubber pad includes a bottom surface combined with an upper surface of the bottom plate and a side surface combined with an inner surface of the side plate; the upper rubber pad is provided with through holes corresponding to the central hole and the anti-rotation pin hole of the bottom plate.

[0015] Preferably, the bottom plate is provided with a plurality of first mounting holes for the upper rubber pad and second mounting holes for the lower rubber pad; an upper surface of the lower rubber pad is provided with upper protrusions inserted into the second mounting holes of the bottom plate; a lower surface of the upper rubber pad is provided with lower protrusions inserted into the first mounting holes of the bottom plate.

[0016] Preferably, the bottom plate is provided with a central hole for the electric sound generator, a plurality of first mounting holes for the upper rubber pad, and second mounting holes for the lower rubber pad, a lower surface of the bottom plate is formed into an upward concave curved surface corresponding to an upper surface of the electric sound generator; the first mounting holes and the second mounting holes are provided symmetrically with respect to the central hole, and the first mounting holes and the second mounting holes are arranged such that a distance between the first mounting holes and the second mounting holes and the central hole is less than a radius of the upward concave curved surface of the bracket.

[0017] Preferably, the hardness of the lower rubber pad is equal to or less than that of the upper rubber pad.

[0018] Preferably, the bracket is provided at the central part in front of the vehicle.

[0019] Advantages of the present invention:

[0020] The present invention provides a specific bracket for mounting an electric sound generator, which avoids the resonance points of the electric vehicle body, improves the assembly rigidity and increases the structural rigidity. And by providing a lower rubber pad, a surface matching structure can be formed between the bracket and the mounting surface of the electric sound generator, and abnormal noises can be prevented. Through the structure of the present invention, the electric vehicle can obtain the low-frequency motion feeling of an internal combustion engine and the vibration feeling during engine combustion, thereby realizing various exciting sound effects.

[0021] The method and device of the present invention have other characteristics and advantages, which will be obvious from the accompanying drawings incorporated herein and the subsequent embodiments, or will be described in detail in the accompanying drawings incorporated herein and the subsequent embodiments, and these drawings and embodiments are used together to explain the specific principles of the present invention. Description of the Drawings

[0022] Figure 1 is a general schematic diagram of the bracket for an electric sound generator of the present invention.

[0023] Figure 2 is a schematic diagram of the main body of the bracket.

[0024] Figure 3 is a top view of the main body of the bracket.

[0025] Figure 4a is a top perspective view of the bracket.

[0026] Figure 4b is a top view of the upper rubber pad of the bracket.

[0027] Figure 4c is a bottom view of the upper rubber pad of the bracket.

[0028] Figure 5a is a bottom perspective view of the bracket.

[0029] Figure 5b is a top view of the lower rubber pad of the bracket.

[0030] Figure 5c is a bottom view of the lower rubber pad of the bracket.

[0031] Figure 6 is a perspective view of the electric sound generator.

[0032] Figure 7Schematic diagram of an electric sound generator mounted on a vehicle front bulkhead by a bracket according to an embodiment of the present invention.

[0033] Figure 8 Force analysis diagram of a bracket for an electric sound generator according to an embodiment of the present invention.

[0034] Figure 9 Schematic diagram showing the welding structure of a bracket for an electric sound generator and a vehicle front bulkhead according to an embodiment of the present invention.

[0035] Figure 10 Installation schematic diagram of a bracket for an electric sound generator according to an embodiment of the present invention.

[0036] Explanation of reference numerals in the drawings:

[0037] 1: Bracket 10: Bracket main body

[0038] 11: Bottom plate 12: Side plate

[0039] 13: Central hole 14: Anti-rotation pin hole

[0040] 15: Mounting hole 2: Electric sound generator

[0041] 2a: Central pin 2b: Anti-rotation pin

[0042] 20: Upper rubber pad 21: Bottom surface

[0043] 22: Side surface 23: Through hole

[0044] 24: Through hole 25: Lower protrusion

[0045] 3: Front bulkhead 30: Lower rubber pad

[0046] 31: Bottom surface 32: Side surface

[0047] 33: Through hole 34: Through hole

[0048] 35: Upper protrusion 36: Buffer protrusion

[0049] A: Nut rotation direction B: Electric sound generator insertion direction WL: Weld seam.

[0050] Unless otherwise specified, for the drawings, the same reference numerals or symbols indicate the same elements.

[0051] It should be understood that the drawings are not necessarily drawn to scale, but rather present simplified representations of various features for the purpose of illustrating the basic principles of the present invention. The specific design features disclosed in the present invention (including, for example, specific dimensions, directions, positions, and shapes) will be determined in part by the specific application and use environment.

[0052] In these figures, throughout the several views of the drawings, like reference numerals denote the same or equivalent parts of the present invention. Detailed Description of the Invention

[0053] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. Although the present invention will be described in conjunction with the exemplary embodiments, it should be understood that the present specification is not intended to limit the present invention to these exemplary embodiments. On the contrary, the present invention is intended to cover not only these exemplary embodiments, but also various alternative forms, modifications, equivalents, and other embodiments that may be included within the spirit of the present invention and the scope defined by the appended claims.

[0054] The bracket according to an embodiment of the present invention is for an electric sound generator that generates sound and vibration. Among them, the upper surface of the electric sound generator is mounted on the bracket; see Figure 6 , the upper surface of the electric sound generator 2 is an arch with a radius of R, and a central pin 2a is provided at the center thereof, and an anti-rotation pin 2b is provided outside the central pin 2a.

[0055] Reference will now be made to Figures 1 - 10 a detailed description of the bracket for an electric sound generator according to an embodiment of the present invention.

[0056] The bracket 1 for an electric sound generator according to an embodiment of the present invention includes a bracket main body 10, an upper rubber pad 20, and a lower rubber pad 30, see Figure 1 .

[0057] Reference will be made to Figure 2 and Figure 3 , the bracket main body 10 is formed by stamping a steel plate and is a plate member with a U-shaped cross section. The bracket main body 10 includes a bottom plate 11 and two side plates 12, wherein the bottom plate 11 is installed in the horizontal direction, and the side plates 12 extend upward from both sides of the bottom plate 11. The end of the bracket main body 10 is connected to the vehicle body, that is, the ends of the bottom plate 11 and the two side plates 12 of the bracket main body 10 are welded to the front bulkhead 3 of the vehicle. See Figure 9 , the weld WL when the bracket main body 10 is installed on the front bulkhead 3 of the electric vehicle is shown in the figure, and it can be seen that the welds are respectively located at the ends of the two side plates and the bottom plate.

[0058] The bottom plate 11 is formed into a circular upward concave curved surface corresponding to the upper surface of the electric sound generator 2, where the radius R of the upward concave curved surface is smaller than the radius R1 of the upper surface of the electric sound generator 2. The radius R can adopt different electric sound generator bracket sizes according to different vehicle grades. For example, for the 1A - level electric sound generator used in small electric vehicles, the radius R of the upward concave curved surface of the bracket is 102 mm; for the 2A - level electric sound generator used in large electric vehicles, the radius R of the upward concave curved surface of the bracket is 132 mm.

[0059] On an electric vehicle, in order to enable the structural sound effect to be realized as a good sound effect through the vibration of the electric sound generator 2, the electric sound generator is installed horizontally, and its vibration direction needs to be at a 90° angle to the horizontal plane. To achieve a vibration direction of 90° to the horizontal plane, the installation surface of the bracket body 10 needs to be formed into a concave shape. Refer to Figure 8 , by adopting the bracket 1, the sound transmission path of the electric sound generator 2 is improved. Through the bracket 1 perpendicular to the horizontal plane, the sound transmitted from the electric sound generator 2 to the vehicle body through the bracket 1 is transmitted in the 100% vibration direction without loss. In addition, through the 100% surface matching between the electric sound generator 2 and the bracket 1, for example, in this embodiment, the contact area between the two reaches 3733 mm 2 , thus enhancing the vibration transmission path of the electric sound generator.

[0060] The bottom plate 11 is provided with a central hole 13 for the central pin 2a of the electric sound generator 2 and an anti - rotation pin hole 14 for the anti - rotation pin 2b. The central hole 13 is located at the center of the bottom plate 11, and the central pin 2a of the electric sound generator 2 passes through the central hole 13. The anti - rotation pin hole 14 is located at a distance of 4 / 5R from the central hole 13, where R is the radius of the electric sound generator 2, and the anti - rotation pin 2b of the electric sound generator 2 passes through the anti - rotation pin hole 14.

[0061] The bottom plate 11 is further formed with mounting holes 15. These mounting holes 15 are divided into first mounting holes and second mounting holes. The first mounting holes are for the upper rubber pad 20, and the second mounting holes are for the lower rubber pad 30, respectively for the protrusions on the upper rubber pad 20 and the lower rubber pad 30 to pass through. A plurality of first mounting holes and second mounting holes are respectively provided, and these holes are provided symmetrically with respect to the central hole 13. The positions of these holes are limited to the radius R of the bracket 1, (that is where r1 is the distance from the center of the first mounting hole and the second mounting hole to the center of the circular upward concave curved surface).

[0062] The lower rubber pad 30 is installed at the lower part of the bracket body 10, contacts the electric sound generator 2 and provides buffering between the bracket body 10 and the electric sound generator 2.

[0063] The lower rubber pad 30 is made of elastic rubber or similar materials, such as natural rubber, synthetic rubber, polymer elastomers (such as polyurethane), etc.; for example, for an ambient temperature of -40° to 140°, EPMD rubber (i.e., ethylene propylene diene monomer rubber) can be used; for an ambient temperature of -40° to 150°, heat-resistant EPMD rubber can be used; for an ambient temperature of -40° to 220°, silicone rubber can be used. Preferably, the material of the lower rubber pad 30 is made of rubber with a hardness of HS40 - HS70, and its hardness can be set according to the vehicle grade; for example, for a 1A-class electric sound generator used in a small electric vehicle, the rubber hardness of the lower rubber pad 30 is EPMD rubber with a hardness of HS40 - HS50; for a 1A - 2A-class electric sound generator used in a medium-sized electric vehicle, the rubber hardness of the lower rubber pad 30 is EPMD rubber with a hardness of HS50 - HS60; for a 2A-class electric sound generator used in a large electric vehicle, the rubber hardness of the lower rubber pad 30 is EPMD rubber with a hardness of HS60 - HS70. The lower rubber pad 30 can make the electric sound generator 2 fit well with the bracket 1 and prevent abnormal noises during driving.

[0064] The shape of the lower rubber pad 30 is adapted to the bracket main body 10, including a bottom surface 31 that combines with the lower surface of the bottom plate 11 and a side surface 32 that combines with the outer surface of the side plate 12, so that the lower rubber pad 30 covers the outside of the lower part of the bracket main body 10, where the bottom surface 31 is formed as an upward concave curved surface corresponding to the bottom plate 11. The bottom surface 31 of the lower rubber pad 30 provides buffering between the bracket main body 10 and the electric sound generator 2, while the side surface 32 enables the lower rubber pad 30 to better combine with the bracket main body 10. In one example, the height of the side surface 32 is lower than the height of the side plate 12 of the bracket main body 10.

[0065] The lower rubber pad 30 includes through holes 33, 34 corresponding to the central hole 13 and the anti-rotation pin hole 14 of the bottom plate 11.

[0066] The lower surface of the lower rubber pad 30 is provided with a plurality of buffer protrusions 36. In one example, these buffer protrusions 36 are semi-circular protrusions, and there is a fixed interval between each buffer protrusion 36; for example, the interval between each buffer protrusion 36 can be 6 mm to 10 mm, preferably 9 mm. After the electric sound generator is installed on the bracket 1, the upper surface of the electric sound generator 2 contacts these buffer protrusions 36, and when under pressure, the buffer protrusions 36 can deform to play a role in buffering and vibration reduction.

[0067] The upper surface of the lower rubber pad 30 is provided with a plurality of upper protrusions 35, and their positions correspond to the positions of the second mounting holes of the bottom plate 11. Thus, when the lower rubber pad 30 is installed on the bottom plate 11, the upper protrusions 35 are inserted into the second mounting holes, so that the lower rubber pad 30 can better combine with the bottom plate 11.

[0068] In one example, an adhesive is coated between the lower rubber pad 30 and the bottom plate 11, so that the lower rubber pad 30 is more firmly bonded to the bottom plate 11.

[0069] The bracket 1 further includes an upper rubber pad 20, and the upper rubber pad 20 is disposed on the upper surface of the bracket body 10.

[0070] The upper rubber pad 20 is made of elastic rubber or a similar material, such as natural rubber, synthetic rubber, polymer elastomer (such as polyurethane), etc.; for example, for an ambient temperature of -40° to 140°, EPMD rubber (i.e., ethylene propylene diene monomer rubber) can be used; for an ambient temperature of -40° to 150°, heat-resistant EPMD rubber can be used; for an ambient temperature of -40° to 220°, silicone rubber can be used. In one example, the upper rubber pad 20 is made of EPMD rubber with a hardness of HS70, and the rubber hardness of the upper rubber pad 20 is equal to or greater than that of the lower rubber pad 30. The main function of the upper rubber pad 20 is to prevent abnormal noise during the operation of the electric sound generator, so the rubber hardness of the upper rubber pad 20 is set to be higher than or equal to that of the lower rubber pad 30.

[0071] The shape of the upper rubber pad 20 is adapted to the bracket 1, including a bottom surface 21 that is combined with the upper surface of the bottom plate 11 and a side surface 22 that is combined with the inner surface of the side plate 12, so that the upper rubber pad 20 covers the inner side of the lower part of the bracket 1, wherein the bottom surface 21 is formed as a convex shape corresponding to the bottom plate 11. In one example, the height of the side surface 22 of the upper rubber pad 20 is lower than the height of the side plate 12 of the bracket 1.

[0072] The upper rubber pad 20 includes through holes 23 and 24 corresponding to the central hole 13 and the anti-rotation pin hole 14 of the bottom plate 11.

[0073] A plurality of lower protrusions 25 are provided on the lower surface of the upper rubber pad 20, and their positions correspond to the positions of the first mounting holes on the bottom plate 11. Thus, when the upper rubber pad 20 is mounted on the bottom plate 11, the lower protrusions 25 are inserted into the first mounting holes, so that the upper rubber pad 20 is better bonded to the bottom plate 11.

[0074] In one example, an adhesive is coated between the upper rubber pad 20 and the bottom plate 11, so that the upper rubber pad 20 is more firmly bonded to the bottom plate 11.

[0075] In order to prevent abnormal noise, the natural frequency of the bracket 1 is set to 800 Hz - 1500 Hz, preferably 1,200 Hz.

[0076] Next, refer to a plurality of drawings to illustrate the installation of the bracket and the electric sound generator 2 according to the embodiments of the present invention.

[0077] See Figure 10 , first, the electric sound generator 2 is installed on the lower surface of the bracket 1 in the direction of arrow B. The central pin 2a of the electric sound generator 2 passes through the central hole 13 of the bracket body 10, and the anti-rotation pin 2b of the electric sound generator 2 passes through the anti-rotation pin hole 14 of the bracket body 10. Then, the nut is installed on the central pin 2a of the electric sound generator 2 in the rotation direction A, thereby realizing the installation of the electric sound generator 2 on the bracket 1.

[0078] The bracket 1 is arranged at the central part in the front of the vehicle. Considering the indoor sound transmissibility, the electric sound generator 2 is arranged at the central part in the front of the electric vehicle to ensure the sound quality consistency of the driver's seat / passenger seat. Preferably, considering the sound transmissibility, the electric sound generator 2 is arranged at the part with relatively weak rigidity on the front panel 3.

[0079] The bracket for the electric sound generator of the present invention has the following beneficial effects:

[0080] ① By adopting the bracket 1, the vibration for realizing the sound effect transmitted to the vehicle is ensured.

[0081] The bracket 1 according to the embodiment of the present invention is surface-matched with the electric sound generator 2 to prevent the electric sound generator from twisting, thereby increasing the sound transmissibility. Along the curved surface of the electric sound generator 2, it is matched with the entire area of the bracket 1, so no twisting will occur, thus preventing abnormal noise.

[0082] ② By adopting the present bracket 1, the sound transmission path of the electric sound generator 2 is improved. By developing the present bracket 1 perpendicular to the horizontal plane, the sound transmitted from the electric sound generator 2 to the vehicle body through the bracket 1 is transmitted in the 100% vibration direction without loss.

[0083] In addition, through the 100% surface matching between the electric sound generator 2 and the bracket 1, the vibration transmission path of the electric sound generator is increased.

[0084] ③ By adopting the bracket 1 of the present invention, the surface matching between the electric sound generator 2 and the bracket 1 is ensured.

[0085] ④ By adopting the bracket 1 of the present invention, the welding between the bracket 1 and the front panel 3 is changed, thereby ensuring the rigidity.

[0086] By adopting the bracket structure according to the embodiment of the present invention, the rigidity of the bracket is improved, and the sound effect of the electric sound generator 2 transmitted to the vehicle body through the bracket is improved.

[0087] The structure of the present invention has been described above with reference to the embodiments accompanied by drawings. However, those skilled in the art can make improvements to this structure. For example, only the lower rubber pad can be provided without providing the upper rubber pad; the buffer protrusions can be not provided on the lower rubber pad; reinforcing ribs can be provided at the end of the bracket main body to increase the bonding strength with the front bulkhead, etc.

[0088] Although the bracket for an electric sound generator according to an embodiment of the present invention is exemplarily disclosed in the above description as being applied to an electric vehicle, it should be understood that its application is not limited to electric vehicles, and it can also be applied to other fields where there are requirements for generating sound and vibration.

[0089] The foregoing description of the specific exemplary embodiments of the present invention has been presented for purposes of illustration and description. The foregoing description is not intended to be exhaustive nor to limit the invention to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teachings. The exemplary embodiments were chosen and described in order to explain the particular principles of the invention and its practical application to enable others skilled in the art to realize and utilize the various exemplary embodiments of the invention and their various alternative forms and modifications. The scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bracket for an electric sound generator, characterized in that, The bracket includes a bracket body, an upper rubber pad, and a lower rubber pad; The end of the bracket body is fixedly mounted to the vehicle body; The upper rubber pad is disposed on the upper surface of the bracket body; The lower rubber pad is mounted on the lower part of the bracket body, contacts the electric sound generator, and provides buffering between the bracket body and the electric sound generator.

2. The bracket for an electric sound generator according to claim 1, characterized in that, The bracket body is a plate member with a U-shaped cross-section, and the bracket body includes a bottom plate and two side plates extending upward from both sides of the bottom plate.

3. The bracket for an electric sound generator according to claim 2, characterized in that, The bottom plate is arranged in the horizontal direction, and the lower surface of the bottom plate is formed into an upward concave curved surface corresponding to the upper surface of the electric sound generator.

4. The bracket for an electric sound generator according to claim 3, characterized in that, The ends of the bottom plate and the two side plates of the bracket body are welded to the front bulkhead of the electric vehicle.

5. The bracket for an electric sound generator according to claim 3, characterized in that, The bottom plate is provided with a central hole for the electric sound generator and an anti-rotation pin hole. The central hole is located at the center of the bottom plate, and the anti-rotation pin hole and the central hole are spaced apart.

6. The bracket for an electric sound generator according to claim 5, characterized in that, The shape of the lower rubber pad corresponds to the shape of the bracket body. The lower rubber pad includes a bottom surface combined with the lower surface of the bottom plate and a side surface combined with the outer surface of the side plate; the lower rubber pad is provided with through holes corresponding to the central hole and the anti-rotation pin hole of the bottom plate; multiple buffer protrusions are provided on the lower surface of the lower rubber pad.

7. The bracket for an electric sound generator according to claim 2, characterized in that, The shape of the upper rubber pad corresponds to the shape of the bracket body. The upper rubber pad includes a bottom surface combined with the upper surface of the bottom plate and a side surface combined with the inner surface of the side plate; the upper rubber pad is provided with through holes corresponding to the central hole and the anti-rotation pin hole of the bottom plate.

8. The bracket for an electric sound generator according to claim 2, characterized in that, The bottom plate is provided with a plurality of first mounting holes for the upper rubber pad and second mounting holes for the lower rubber pad; upper protrusions are provided on the upper surface of the lower rubber pad and inserted into the second mounting holes of the bottom plate; lower protrusions are provided on the lower surface of the upper rubber pad and inserted into the first mounting holes of the bottom plate.

9. The bracket for an electric sound generator according to claim 2, characterized in that, The bottom plate is provided with a central hole for the electric sound generator and a plurality of first mounting holes for the upper rubber pad and second mounting holes for the lower rubber pad. The lower surface of the bottom plate is formed into an upward concave curved surface corresponding to the upper surface of the electric sound generator; the first mounting holes and the second mounting holes are provided symmetrically with respect to the central hole, and the first mounting holes and the second mounting holes are arranged such that the distance between the first mounting holes and the second mounting holes and the central hole is less than the radius of the upward concave curved surface of the bracket.

10. The bracket for an electric sound generator according to claim 1, characterized in that, The hardness of the lower rubber pad is equal to or less than the hardness of the upper rubber pad.

11. The bracket for an electric sound generator according to claim 1, characterized in that, The bracket is disposed at the central part in front of the vehicle.