Cover cap for whistling horn, whistling horn assembly and vehicle
By designing a cover structure with staggered sound holes and blocking parts, the problem of the horn's sharp and piercing sound was solved, the sound quality was improved while maintaining the warning function, and a deeper and richer sound effect was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-03-10
AI Technical Summary
The horns of existing vehicles produce sharp and piercing sounds, affecting the driving experience and having a negative impact on the environment.
Design a cover including a first partition and a second partition. The partition is provided with a sound outlet and a blocking part. After the sound wave passes through the blocking and oscillation in the resonant cavity, the high-frequency energy is attenuated. By changing the sound wave propagation path through the staggered sound outlet and blocking part, the high-frequency energy is reduced and the sound quality is improved.
It effectively improves the problem of sharp and harsh horn sounds, enhances sound quality, and keeps the vehicle's external warning functions unaffected.
Smart Images
Figure CN223982488U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, specifically providing a cover for a horn, a horn assembly, and a vehicle. Background Technology
[0002] With the rapid development of the automotive industry and the continuous improvement of related technologies, consumers are also constantly seeking a higher overall driving experience. A vehicle horn is a device that converts electrical energy into mechanical energy and then into sound energy. It is typically used to emit warning sounds to alert pedestrians or other road users to potential hazards and ensure driving safety.
[0003] Existing horns, in order to fulfill their warning function, typically emit sharp and piercing sounds, which not only affect the driving experience but also have a negative impact on people outside the vehicle and the environment. Utility Model Content
[0004] The present invention aims to solve the above-mentioned technical problem, namely, to solve the problem that the sound emitted by the vehicle horn in order to meet the warning function is sharp and piercing in the prior art.
[0005] In a first aspect, the present invention provides a cover for a horn, characterized in that the cover includes a first partition and a second partition, the first partition and the second partition being connected to form a resonating cavity, the first partition having a plurality of first sound outlet holes penetrating the first partition, the second partition having a plurality of second sound outlet holes penetrating the second partition, the first sound outlet holes and the second sound outlet holes respectively communicating with the resonating cavity, the second partition being configured to cover the horn opening of the horn so that the second sound outlet holes communicate with the horn opening; the first partition having a first blocking portion, at least one second sound outlet hole being arranged opposite the first blocking portion, and / or the second partition having a second blocking portion, at least one first sound outlet hole being arranged opposite the second blocking portion.
[0006] When the above technical solution is adopted, the sound waves emitted by the horn are transmitted from the horn mouth to the second partition. If only the second blocking part is provided on the second partition, part of the sound waves at the horn mouth are blocked by the second blocking part, and part of the sound waves enter the resonating cavity through the second sound outlet and vibrate. The vibrated sound waves are then scattered out through the first sound outlet. If only the first blocking part is provided on the first partition, the sound waves at the horn mouth enter the resonating cavity through the second sound outlet and vibrate. Part of the sound waves in the resonating cavity are blocked by the first blocking part and continue to vibrate, while part of the sound waves are scattered out through the first sound outlet. If both the second and first partitions have a second blocking part, part of the sound waves at the horn mouth are blocked by the second blocking part, and part of the sound waves enter through the second sound outlet. The sound waves vibrate within the resonant cavity. Some of the sound waves within the cavity are blocked by the first obstruction and continue to vibrate, while others are scattered out through the first sound outlet. Since high-frequency energy is more easily scattered and absorbed when sound waves propagate through the air, and high-frequency energy is the main cause of sharp and harsh sounds, the high-frequency energy of the sound waves attenuates more than the low-frequency energy after being blocked and vibrated. This effectively improves the problem of sharp and harsh sounds. Furthermore, the scattering of the vibrated sound waves from the first sound outlet changes the single propagation path of the sound waves, making the sound deeper and richer, thereby improving sound quality, but with little impact on sound pressure level. Therefore, the cover can effectively improve the sharp and harsh sound of the horn, improve sound quality, and does not affect the external warning function of the horn.
[0007] In the specific embodiment of the cover for the horn described above, the first sound outlet and the second sound outlet are arranged alternately, and at least two of the first sound outlets are arranged opposite the second blocking part; and / or a third sound outlet is provided on the side wall of the resonating cavity.
[0008] With the above technical solution, compared to the case where the first and second sound outlets are directly opposite each other, where some sound waves propagate directly from the second sound outlet through the first sound outlet, the staggered arrangement of the first and second sound outlets ensures that at least part of the sound waves entering the resonant cavity from the second sound outlet are blocked by the first baffle and vibrate within the resonant cavity, appropriately increasing the number of oscillations within the cavity. The second baffle, providing a larger blocking area, more effectively increases the number of oscillations, and the sound waves are then scattered out from the first sound outlet, further improving the reduction of the horn's sharp and harsh sound, enhancing sound quality, and without affecting the horn's external warning function. The third sound outlet allows the sound waves, after vibrating within the resonant cavity, to also scatter out, thus appropriately increasing the horn's sound pressure level without affecting the sound quality improvement, and avoiding interference with the external warning function.
[0009] In the specific embodiment of the cover for the horn described above, the first sound outlet and the second sound outlet are arranged alternately, and at least two of the second sound outlets are arranged directly opposite the first blocking part; and / or the first sound outlet is an elongated hole and the second sound outlet is an elongated hole.
[0010] When the above technical solution is adopted, compared to the case where the first and second sound outlets are directly opposite each other, some sound waves propagate directly from the second sound outlet through the first sound outlet. The staggered arrangement of the first and second sound outlets ensures that at least part of the sound waves entering the resonant cavity from the second sound outlet are blocked by the first partition and vibrate within the resonant cavity, appropriately increasing the number of oscillations within the cavity. The larger blocking area provided by the first blocking part more effectively increases the number of oscillations within the cavity. The sound waves then scatter out from the first sound outlet, further improving the effect of reducing the sharpness and harshness of the horn sound, improving sound quality, and without affecting the horn's external warning function. Since elongated holes have a stronger scattering and absorption effect on high-frequency energy, setting the first and second sound outlets as elongated holes further improves the effect of reducing the sharpness and harshness of the horn sound, improving sound quality, and without affecting the horn's external warning function.
[0011] In the specific embodiment of the cover for the horn described above, a limiting groove is provided on the first end face of the second partition covering the horn opening, and the horn opening can be disposed in the limiting groove.
[0012] When the above technical solution is adopted, the limiting groove can limit the cover when it is installed, making it convenient to install the cover at the flared mouth and cover the flared mouth.
[0013] In the specific embodiment of the cover for the horn described above, the cover further includes a snap-fit structure, which is provided on the first side of the second partition and the second side opposite to the first side. The snap-fit structure and the limiting groove form a snap-fit groove, and the snap-fit protrusion of the horn mouth can snap into the snap-fit groove.
[0014] When the above technical solution is adopted, the cover and the horn can be locked together by the snap-fit protrusion and the snap-fit groove.
[0015] In the specific embodiment of the cover for the horn described above, a notch communicating with the limiting groove is provided on the third side between the first side and the second side of the second partition, so that the horn opening can enter and exit the snap-fit groove through the notch.
[0016] With the above technical solution, the notch allows the flared mouth to enter and exit the snap-fit groove, facilitating the installation and removal of the cover.
[0017] In the specific embodiment of the cover for the horn described above, the side of the third side of the second partition is flush with the edge of the horn opening, and a disassembly groove is provided at the connection between the first end face and the side of the third side, so as to form a disassembly gap between the second partition and the horn opening.
[0018] When the above technical solution is adopted, when it is necessary to remove the cover, since the side of the third side of the second partition is flush with the edge of the flared mouth, and the flared mouth is in contact with the bottom of the snap-fit groove, the disassembly groove allows the hand or other disassembly tools to be inserted into the disassembly gap to separate the third side of the second partition from the flared mouth, thereby removing the entire cover.
[0019] In the specific embodiment of the cover for the horn described above, the cover further includes a guide structure, which is disposed on the first side and the second side. The guide structure is provided with a guide groove, which is connected to one end of the snap-fit groove. The height of the guide groove protruding from the first end face decreases linearly from the end away from the snap-fit groove toward the snap-fit groove.
[0020] When using the above technical solution, when installing the cover, first align the guide groove with the flared opening and insert it. At this time, one end of the flared opening enters the limiting groove, while the other end moves away from the limiting groove. Then, put the end away from the limiting groove into the limiting groove and push the cover to guide the flared opening into the snap-fit groove, thereby achieving snap-fit fixation of the cover installation. When removing the cover, first lift one side of the cover and let part of the flared opening enter the guide groove. Then, continue to pull out the cover, allowing the flared opening to move along the guide groove, thereby achieving the removal of the cover.
[0021] In a second aspect, the present invention also provides a horn assembly, the horn assembly comprising a cover for the horn and the horn itself.
[0022] By adopting the above technical solution, the cover can effectively improve the sharp and piercing sound of the horn, improve the sound quality, and not affect the external warning function of the horn.
[0023] In a third aspect, the present invention also provides a vehicle that includes a horn assembly.
[0024] By adopting the above technical solution, the sharp and piercing sound of vehicle horns can be effectively improved, while enhancing sound quality and not affecting the external warning function of the horn.
[0025] Compared to existing technologies, the beneficial effects of the horn cover provided by this utility model are as follows: Through the arrangement of the first and second partitions, the sound waves emitted by the horn are transmitted from the horn opening to the second partition. When only the second partition has a second blocking part, part of the sound waves at the horn opening are blocked by the second blocking part, and part of the sound waves enter the resonating cavity through the second sound outlet and vibrate. The vibrated sound waves are then scattered out through the first sound outlet. When only the first partition has a first blocking part, the sound waves at the horn opening enter the resonating cavity through the second sound outlet and vibrate. Part of the sound waves in the resonating cavity are blocked by the first blocking part and continue to vibrate, while part of the sound waves are scattered out through the first sound outlet. When both the second and first partitions have a second blocking part, part of the sound waves at the horn opening are blocked by the second blocking part and continue to vibrate, while part of the sound waves are scattered out through the first sound outlet. The first blocking part obstructs some sound waves from entering the resonant cavity through the second sound outlet. Within the resonant cavity, some sound waves continue to vibrate after being blocked by the first blocking part, while others are scattered out through the first sound outlet. Since high-frequency energy is more easily scattered and absorbed when sound waves propagate through the air, and high-frequency energy is the main cause of sharp and piercing sounds, the high-frequency energy is attenuated more significantly than the low-frequency energy after obstruction and vibration, effectively improving the sharp and piercing sound. Furthermore, the scattering of the vibrated sound waves from the first sound outlet changes the single propagation path, making the sound deeper and richer, thus improving sound quality, but with minimal impact on sound pressure level. Therefore, the cover effectively improves the sharp and piercing sound of the horn, enhances sound quality, and does not affect the horn's external warning function. Attached Figure Description
[0026] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:
[0027] Figure 1 This is a schematic diagram of the overall structure of the cover of this utility model;
[0028] Figure 2 This is a structural schematic diagram of the cover of this utility model from another angle;
[0029] Figure 3 yes Figure 1 Top view;
[0030] Figure 4 yes Figure 3 AA section view;
[0031] Figure 5 This is a cross-sectional view of one embodiment of the cover of this utility model;
[0032] Figure 6 This is a cross-sectional view of another embodiment of the cover of this utility model;
[0033] Figure 7This is a diagram analyzing the sound test results of a horn.
[0034] Figure 8 This is a schematic diagram of the third sound hole of this utility model.
[0035] Figure label:
[0036] 1-First partition, 2-Second partition, 3-Vibration chamber, 4-Third sound outlet, 5-Snap-fit structure, 6-Guide structure, 11-First sound outlet, 12-First blocking part, 21-Second sound outlet, 22-Second blocking part, 23-Limiting groove, 24-Notch, 25-Disassembly groove, 26-First side, 27-Second side, 28-Third side, 51-Snap-fit groove, 61-Guide groove. Detailed Implementation
[0037] Some embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0038] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the relevant device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0039] Furthermore, it should be noted that in the description of this utility model, ordinal numbers such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. In addition, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can also refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0040] As indicated in the background art, the existing technology addresses the problem of sharp and piercing sounds emitted by vehicle horns in order to fulfill their warning function. The aim is to effectively improve the sharp and piercing sound of the horn by setting up a cover, thereby improving the sound quality without affecting the external warning function of the horn.
[0041] This utility model relates to a vehicle horn assembly, which includes a horn and a cover. The horn includes a housing with a horn opening. The housing extends outward from the horn opening to form a snap-fit protrusion, and the cover can cover the horn opening. The vehicle can be a car, electric vehicle, motorcycle, train, etc., without specific limitation. Furthermore, the shape of the horn opening can be square, circular, or polygonal, without specific limitation.
[0042] It should be noted that the horn assembly of this utility model can be used not only in vehicles, but also in other equipment that requires the use of horns, such as ships and alarm systems. The horn assembly can also be used directly in places where notifications or warnings need to be issued, without any specific limitations.
[0043] First refer to Figures 1-4 , Figure 1 This is a schematic diagram of the overall structure of the cover of this utility model. Figure 2 This is a structural schematic diagram of the cover of this utility model from another angle. Figure 3 yes Figure 1 Top view, Figure 4 yes Figure 3 AA sectional view. For example... Figures 1-4As shown, the cover of this utility model includes a first partition 1 and a second partition 2. The first partition 1 and the second partition 2 are connected to form a resonating cavity 3. The first partition 1 has a plurality of first sound outlet holes 11 penetrating through the first partition 1, and the second partition 2 has a plurality of second sound outlet holes 21 penetrating through the second partition 2. The first sound outlet holes 11 and the second sound outlet holes 21 are respectively connected to the resonating cavity 3. The second partition 2 is configured to cover the mouth of the horn so that the second sound outlet holes 21 are connected to the mouth of the horn. The second partition 2 has a second blocking part 22. The first sound outlet holes 11 and the second sound outlet holes 21 are arranged alternately, with at least two first sound outlet holes 11 facing the second blocking part 22. Based on the above structural configuration, the sound waves emitted by the horn are transmitted from the horn opening to the second partition 2. Part of the sound waves at the horn opening are blocked by the second blocking part 22, while part of the sound waves enter the resonating cavity 3 through the second sound outlet 21 and vibrate. After vibration, the sound waves are scattered out through the first sound outlet 11. Since high-frequency energy is more easily scattered and absorbed when sound waves propagate in the air, and high-frequency energy is the main reason for the sharp and piercing sound, the high-frequency energy of the sound waves is attenuated more than the low-frequency energy after being blocked and vibrated, which can effectively improve the problem of sharp and piercing sound. Moreover, the sound waves after vibration are scattered out through the first sound outlet 11, changing the single propagation path of the sound waves, which can make the sound deeper and richer, thereby improving the sound quality, but with little impact on the sound pressure level. Therefore, the cover can effectively improve the sharp and piercing sound of the horn, improve the sound quality, and does not affect the external warning function of the horn. The first sound outlet 11 and the second sound outlet 21 are arranged alternately. Compared with the first sound outlet 11 and the second sound outlet 21 being set directly opposite each other, where some sound waves propagate directly from the second sound outlet 21 through the first sound outlet 11, the alternate arrangement of the first sound outlet 11 and the second sound outlet 21 allows at least part of the sound waves entering the resonant cavity 3 from the second sound outlet 21 to be blocked by the first partition 1 and vibrate in the resonant cavity 3, and appropriately increases the number of vibrations of the sound waves in the resonant cavity 3. The second blocking part 22 provides a larger blocking area, which can more effectively increase the number of vibrations of the sound waves in the resonant cavity 3. Then the sound waves are scattered out from the first sound outlet 11, further improving the effect of improving the sharp and harsh sound of the horn, improving the sound quality, and without affecting the external warning function of the horn.
[0044] Those skilled in the art will understand that, although the above combination Figures 1-4 The description states that the second partition 2 is provided with a second blocking part 22, but this is not limiting. The second partition 2 may not be provided with a second blocking part 22, and only the first partition 1 may be provided with a first blocking part 12, with at least two second sound outlet holes 21 arranged opposite the first blocking part 12, as shown in the specific structure. Figure 5As shown, in this case, the sound waves at the horn mouth enter the resonating cavity 3 through the second sound outlet 21 and oscillate. Part of the sound waves in the resonating cavity 3 are blocked by the first blocking part 12 and continue to oscillate, while part of the sound waves are scattered out through the first sound outlet 11. Alternatively, it can be configured such that while the second partition 2 has a second blocking part 22, the first partition 1 can also have a first blocking part 12, with at least two second sound outlets 21 arranged opposite the first blocking part 12. The specific structure is as follows: Figure 6 As shown, in this situation, some sound waves at the horn opening are blocked by the second blocking part 22, some sound waves enter the resonating cavity 3 through the second sound outlet 21 and oscillate, some sound waves in the resonating cavity 3 are blocked by the first blocking part 12 and continue to oscillate, and some sound waves are scattered out through the first sound outlet 11. All of the above adjustments do not deviate from the principle of this invention and are within the protection scope of this invention.
[0045] Those skilled in the art will also understand that, although the above combination Figures 1-6 The description describes an alternating arrangement of the first sound outlet 11 and the second sound outlet 21, with multiple first sound outlets 11 facing the second blocking part 22. However, this is not a limitation; the first sound outlets 11 and the second sound outlets 21 can also be arranged facing each other. In this case, at least one first sound outlet 11 is arranged facing the second blocking part 22, as long as the second blocking part 22 can block some of the sound waves. When the first partition 1 is provided with a first blocking part 12, at least one second sound outlet 21 is arranged facing the first blocking part 12, as long as the first blocking part 12 can block some of the sound waves. Those skilled in the art can make adjustments as needed.
[0046] The first blocking part 12 can be located in the middle of the first partition 1 or in other positions of the first partition 1, and the number of the first blocking parts 12 can be one or more; the second blocking part 22 can be located in the middle of the second partition 2 or in other positions of the second partition 2, and the number of the second blocking parts 22 can be one or more; no specific limitation is made here, and those skilled in the art can make adjustments as needed.
[0047] It should be noted that in order to fulfill the external warning function of the horn, the sound pressure level of the horn must meet the relevant regulations; for example, when measured at a distance of 7 meters from the front of the vehicle and within a height range of 0.5 meters to 1.5 meters above the ground, the sound pressure level should not be lower than 87 decibels and not higher than 112 decibels.
[0048] It should also be noted that the first partition 1 and the second partition 2 can be integrally formed or separate structures, and can be connected into one piece by welding, bonding, bolting or other connection methods; the edges of the first partition 1 and the edges of the second partition 2 are connected to each other, and the connection point forms the side wall of the vibration cavity 3.
[0049] Tests showed that the horn equipped with the cover of this invention had a sound pressure level of 91 dB(A), with a significant decrease in high-frequency energy. (See also...) Figure 7 , Figure 7 This is a graph analyzing the sound test results of a car horn. (For example...) Figure 7 As shown in the figure, the horizontal axis is in Hz and the vertical axis is in dB(A). The dark black curve shows the relationship between the sound wave frequency and sound pressure level of the horn with the cover installed, and the gray curve shows the relationship between the sound wave frequency and sound pressure level of the horn without the cover installed. According to the test results shown in the figure, in the sound of the horn with the cover installed, the sound pressure level corresponding to the sound wave at a frequency of 3150Hz is 51 and the sound pressure level corresponding to the sound wave at a frequency of 10000Hz is 15. In contrast, in the sound of the horn without the cover installed, the sound pressure level corresponding to the sound wave at a frequency of 3150Hz is 56 and the sound pressure level corresponding to the sound wave at a frequency of 10000Hz is 22. Therefore, it can be seen that the average decrease in sound pressure level in the high-frequency range of the horn with the cover installed is about 6 dB(A) compared to the horn without the cover installed, indicating a significant reduction in high-frequency energy.
[0050] like Figure 2 As shown, in one or more embodiments, the first sound outlet 11 is an elongated hole. Based on the above structural configuration, since the elongated hole has a stronger scattering and absorption effect on high-frequency energy, by setting the first sound outlet 11 as an elongated hole, the effect of improving the sharp and harsh sound of the horn can be further enhanced, the sound quality can be improved, and the external warning function of the horn can be unaffected.
[0051] like Figure 1 As shown, in one or more embodiments, the second sound outlet 21 is an elongated hole. Based on the above structural configuration, since the elongated hole has a stronger scattering and absorption effect on high-frequency energy, by setting the second sound outlet 21 as an elongated hole, the effect of improving the sharp and harsh sound of the horn can be further enhanced, the sound quality can be improved, and the external warning function of the horn can be maintained.
[0052] It should be noted that the first sound hole 11 and the second sound hole 21 can both be elongated holes, or one of them can be an elongated hole and the other can be a round hole or a hole of other shapes. Those skilled in the art can make adjustments as needed.
[0053] like Figure 1 As shown, in one or more embodiments, a limiting groove 23 is provided on the first end face of the second partition 2 covering the flared opening, and the flared opening can be disposed within the limiting groove 23. Based on the above structural configuration, the limiting groove 23 can limit the cover when installing the cover, making it convenient to install the cover at the flared opening and cover the flared opening.
[0054] The first end face refers to the end face on the second partition 2 that covers the flared opening, and the second end face opposite to the first end face is connected to the first partition 1.
[0055] like Figure 1 and Figure 3 As shown, in one or more embodiments, the cover further includes a snap-fit structure 5, which is disposed on the first side 26 and the second side 27 opposite to the first side 26 of the second partition 2. The snap-fit structure 5 and the limiting groove 23 form a snap-fit groove 51, and the snap-fit protrusion of the horn mouth can snap into the snap-fit groove 51. Based on the above structural configuration, the cover and the horn can be snapped and fixed by the snap-fit protrusion and the snap-fit groove 51.
[0056] Wherein, the first side portion 26 refers to the portion of the second partition 2 near the first side and the first side surface, and the second side portion 27 refers to the portion of the second partition 2 near the second side and the second side surface. The first side and the second side refer to two opposite sides of the second partition 2 that are perpendicular to the first end face. The snap-fit structure 5 can be a snap-fit plate, which is connected to the second partition 2 and is used to prevent the snap-fit protrusion from disengaging from the snap-fit groove 51 in a direction perpendicular to the first end face.
[0057] like Figure 1 and Figure 3 As shown, in one or more embodiments, a notch 24 communicating with the limiting groove 23 is provided on the third side 28 between the first side 26 and the second side 27 of the second partition 2, so that the flared mouth can enter and exit the snap-fit groove 51 through the notch 24. Based on the above structural configuration, the notch 24 allows the flared mouth to enter and exit the snap-fit groove 51 through the notch 24, which facilitates the installation and removal of the cover.
[0058] The third side 28 refers to the portion of the second partition 2 near the third side and the third side, and the third side refers to the side between the first side and the second side on the second partition 2.
[0059] like Figure 1 and Figure 3 As shown, in one or more embodiments, the side of the third side portion 28 of the second partition 2 is flush with the edge of the flared opening, and a disassembly groove 25 is provided at the connection between the first end face and the side of the third side portion 28, so that a disassembly gap is formed between the second partition 2 and the flared opening. Based on the above structural configuration, when it is necessary to disassemble the cover, since the side of the third side portion 28 of the second partition 2 is flush with the edge of the flared opening, and the flared opening is in contact with the bottom of the snap-fit groove 51, the disassembly groove 25 allows a hand or other disassembly tool to be inserted into the disassembly gap to separate the third side portion 28 of the second partition 2 from the flared opening, thereby removing the entire cover.
[0060] The side of the third side portion 28 of the second partition 2 refers to the third side surface.
[0061] like Figure 1 and Figure 3 As shown, in one or more embodiments, the cover further includes a guide structure 6, which is disposed on the first side portion 26 and the second side portion 27. The guide structure 6 is provided with a guide groove 61, which is connected to one end of the snap-fit groove 51. The height of the guide groove 61 protruding from the first end face decreases linearly from the end away from the snap-fit groove 51 toward the snap-fit groove 51. Based on the above structural configuration, when installing the cover, first align the guide groove 61 with the flared opening and insert it. At this time, one end of the flared opening enters the limiting groove 23, and the other end moves away from the limiting groove 23. Then, the end away from the limiting groove 23 is placed into the limiting groove 23 and the cover is pushed to guide the flared opening into the snap-fit groove 51, thereby achieving snap-fit fixation of the cover installation. When removing the cover, first lift one side of the cover and let part of the flared opening enter the guide groove 61. Then, continue to pull out the cover so that the flared opening moves along the guide groove 61, thereby achieving the removal of the cover.
[0062] It should be noted that when the guide structure 6 is provided, the snap-fit groove 51 is located on the first side 26 and the second side 27 of the second partition 2 near the fourth side, so as to leave space for the guide structure. The fourth side refers to the side of the second partition 2 opposite to the third side.
[0063] See below. Figure 8 , Figure 8 This is a schematic diagram of the third sound outlet hole of this utility model. (See attached diagram.) Figure 8 As shown, in one or more embodiments, a third sound outlet 4 is provided on the side wall of the resonating cavity 3. Based on the above structural configuration, the third sound outlet 4 allows the sound waves after vibration in the resonating cavity 3 to be scattered out through the third sound outlet 4, thereby appropriately increasing the sound pressure level of the horn without affecting the improvement of sound quality, and avoiding affecting the external warning function.
[0064] It should be noted that the number of third sound holes 4 can be set to one or more. When there are multiple third sound holes 4, they can be set on one or more side walls of the resonating cavity 3. Those skilled in the art can adjust them as needed.
[0065] It should be noted that the above embodiments are only used to illustrate the principle of this utility model and are not intended to limit the scope of protection of this utility model. Without departing from the principle of this utility model, those skilled in the art can adjust the above embodiments so that this utility model can be applied to more specific application scenarios.
[0066] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A cover for a siren horn, characterized in that, the cover comprises a first baffle (1) and a second baffle (2), the first baffle (1) is connected with the second baffle (2) and forms a resonance cavity (3), a plurality of first sound holes (11) penetrating through the first baffle (1) are arranged on the first baffle (1), a plurality of second sound holes (21) penetrating through the second baffle (2) are arranged on the second baffle (2), the first sound holes (11) and the second sound holes (21) are respectively communicated with the resonance cavity (3), the second baffle (2) is arranged to cover a horn mouth of the siren horn, so that the second sound holes (21) are communicated with the horn mouth; a first blocking part (12) is arranged on the first baffle (1), at least one of the second sound holes (21) is arranged opposite to the first blocking part (12), and / or a second blocking part (22) is arranged on the second baffle (2), at least one of the first sound holes (11) is arranged opposite to the second blocking part (22). 2.The cover for the siren horn according to claim 1, characterized in that, the first sound holes (11) and the second sound holes (21) are arranged alternately, and at least two of the first sound holes (11) are arranged opposite to the second blocking part (22); and / or a third sound hole (4) is arranged on a side wall of the resonance cavity (3). 3.The cover for the siren horn according to claim 1, characterized in that, the first sound holes (11) and the second sound holes (21) are arranged alternately, and at least two of the second sound holes (21) are arranged opposite to the first blocking part (12); and / or the first sound holes (11) are long holes, and the second sound holes (21) are long holes. 4.The cover for the siren horn according to claim 1, characterized in that, a limiting groove (23) is arranged on a first end surface of the second baffle (2) covering the horn mouth, and the horn mouth can be arranged in the limiting groove (23). 5.The cover for the siren horn according to claim 4, characterized in that, the cover further comprises a clamping structure (5), the clamping structure (5) is arranged on a first side (26) of the second baffle (2) and a second side (27) opposite to the first side (26), the clamping structure (5) and part of the limiting groove (23) form a clamping groove (51), and a clamping protrusion of the horn mouth can be clamped in the clamping groove (51). 6.The cover for the siren horn according to claim 5, characterized in that, a notch (24) communicated with the limiting groove (23) is arranged on a third side (28) between the first side (26) and the second side (27) of the second baffle (2), so that the horn mouth can enter and exit the clamping groove (51) through the notch (24). 7.The cover for the siren horn according to claim 6, characterized in that, The side surface of the third side portion (28) of the second partition plate (2) is flush with the edge of the bell mouth, and a dismounting groove (25) is arranged at the connection between the first end surface and the side surface of the third side portion (28) to form a dismounting gap between the second partition plate (2) and the bell mouth.
8. The cover for a siren horn according to claim 5, characterized in that, The cover further comprises a guide structure (6) arranged on the first side portion (26) and the second side portion (27), the guide structure (6) is provided with a guide groove (61) in communication with one end of the clamping groove (51), and the height of the guide groove (61) protruding from the first end surface decreases linearly from the end away from the clamping groove (51) to the clamping groove (51).
9. A siren horn assembly, comprising: The siren horn assembly comprises the cover for a siren horn according to any one of claims 1 to 8 and a siren horn.
10. A vehicle characterized by comprising: The vehicle comprises the siren horn assembly according to claim 9. The vehicle comprises the siren horn assembly according to claim 9.