Airflow whistling device and vehicle
By using an airflow horn device to replace electromagnetic vibration for sound generation with the principle of airflow resonance, the aging and high energy consumption problems of traditional electromagnetic loudspeakers are solved, thereby improving reliability and energy efficiency, adapting to harsh environments, and extending the range of new energy vehicles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-26
- Publication Date
- 2026-04-03
AI Technical Summary
Traditional electromagnetic loudspeakers are prone to sound quality distortion and malfunctions due to diaphragm aging, and they also have high energy consumption, which is particularly detrimental to the range of new energy vehicles, and they have a high risk of failure in harsh environments.
The airflow horn device uses an air collection component to capture the airflow in front of the vehicle, guides it to the resonance mechanism through a guide component, and uses a resonance box and adjustment component to achieve non-contact sound generation. The pitch frequency is adjusted according to the Helmholtz resonance principle, and the air pump provides auxiliary power at low speeds.
It improves the reliability and environmental adaptability of the horn system, reduces energy consumption, extends the driving range, and enhances the technological content and user experience of the vehicle, especially in new energy vehicles.
Smart Images
Figure CN121789618A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vehicle speaker technology, and in particular to an airflow horn device and vehicle. Background Technology
[0002] With the continuous development of the automotive industry, the reliability and energy efficiency of vehicle external warning systems, especially horn devices, are receiving increasing attention. Currently, vehicles commonly use electromagnetic speakers as external horn devices, whose core working principle is to drive a diaphragm to vibrate through an electromagnetic coil to generate sound waves. However, this traditional technology has revealed several inherent defects in long-term actual use: First, its internal moving parts, such as the diaphragm and voice coil, are prone to performance degradation due to fatigue, aging, or environmental corrosion (such as rain and dust), resulting in sound quality distortion, reduced volume, or even functional failure, directly affecting driving safety. Second, electromagnetic speakers require continuous electrical energy to maintain the electromagnetic field during operation, resulting in relatively high power consumption. This poses an additional energy burden for new energy vehicles that emphasize energy conservation and emission reduction, especially those highly sensitive to driving range.
[0003] In addition, under harsh working conditions such as high temperature, high humidity or water immersion, the electrical components and diaphragm mechanism of electromagnetic loudspeakers also face a higher risk of failure.
[0004] Therefore, there is an urgent need to provide an airflow horn device and vehicle to address the problems existing in the prior art to some extent. Summary of the Invention
[0005] The purpose of this invention is to provide an airflow horn device and vehicle, so as to solve to some extent the problem that traditional electromagnetic loudspeakers are prone to aging after long-term use, resulting in sound quality distortion and malfunction.
[0006] This invention provides an airflow horn device for use as an external speaker for a vehicle, installed below the front bumper of the vehicle. It includes an air intake assembly, a guide assembly, and a resonance mechanism. The air intake of the air intake assembly faces forward of the vehicle, and the air outlet of the air intake assembly is connected to one end of the guide assembly. The other end of the guide assembly is connected to the resonance mechanism. The resonance mechanism includes a resonance chamber and an adjustment assembly. The resonance chamber consists of a main body and a folding part. The adjustment assembly is connected to the folding part and is used to drive the folding and releasing of the folding part. The folding and releasing of the folding part can increase or decrease the volume of the resonance chamber. An exhaust port is formed on the main body.
[0007] The gas collection assembly includes a gas collection hood, the air inlet of which has a funnel-shaped structure. The bottom end of the gas collection hood away from the air inlet has two inclined guide surfaces that converge toward the center, and an air outlet is formed at the center of the convergence. The air outlet is connected to one end of the guide assembly.
[0008] Specifically, the guiding component includes a first guiding tube and a second guiding tube. One end of the first guiding tube is connected to the air outlet, and the other end is connected to the second guiding tube. The second guiding tube is sleeved outside the first guiding tube, and the end of the second guiding tube away from the gas collecting component is connected to the air inlet of the resonance mechanism. The first guiding tube can extend into or out of the second guiding tube.
[0009] Furthermore, the resonance mechanism also includes a moving component, and the resonance box is disposed on the moving component. The moving component is capable of moving towards or away from the gas collecting component to drive the resonance box to move, causing the first guide tube and the second guide tube to contract or extend.
[0010] Furthermore, the moving component includes a support plate, a traveling wheel, a first driving component, and a transmission shaft; the transmission shaft is connected to the output end of the first driving component, the traveling wheel is connected to the transmission shaft, and the support plate is rotatably connected to the transmission shaft.
[0011] Furthermore, the moving component also includes driven wheels, which are arranged at intervals with the traveling wheels along the length of the support plate.
[0012] The adjustment assembly includes a second driving component, a driving wheel, a transmission wheel, and a connecting shaft. The output end of the second driving component is connected to the driving wheel, the driving wheel meshes with the transmission wheel, the connecting shaft is connected to the transmission wheel, and the folding part is connected to the connecting shaft.
[0013] Specifically, it also includes an air pump, the air outlet of which is connected to the guide assembly.
[0014] Furthermore, the exhaust port is located at the top of the main body.
[0015] Compared with existing technologies, the airflow whistle device provided by this invention has the following advantages: The airflow horn device provided by this invention is used as an external speaker for a vehicle and is installed below the front bumper of the vehicle. It includes an air intake assembly, a guide assembly, and a resonance mechanism. The air intake of the air intake assembly faces the front of the vehicle, and the air outlet of the air intake assembly is connected to one end of the guide assembly. The other end of the guide assembly is connected to the resonance mechanism. The resonance mechanism includes a resonance box and an adjustment assembly. The resonance box consists of a main body and a folding part. The adjustment assembly is connected to the folding part and is used to drive the folding and releasing of the folding part. The folding and releasing of the folding part can increase or decrease the volume of the resonance box. An exhaust port is formed on the main body.
[0016] Analysis reveals that this application protects an airflow horn device, the core of which lies in utilizing the principle of airflow resonance to replace traditional electromagnetic vibration for sound generation. The device comprises three core parts: an air collection component, a guiding component, and a resonance mechanism. The air intake of the air collection component faces forward of the vehicle, thus capturing the natural airflow generated during vehicle movement. According to Bernoulli's principle, the greater the airflow velocity, the lower the pressure, which provides the initial power source for subsequent resonance sound generation.
[0017] The guiding component acts as an airflow channel, efficiently and smoothly guiding the airflow collected by the air-collecting component to the resonance mechanism. The resonance mechanism is crucial for sound generation; it consists of a resonance chamber and an adjustment component. The resonance chamber employs a unique design with a main body and a folding section. The adjustment component dynamically changes the internal volume V of the resonance chamber by driving the folding and releasing of the folding section. According to the Helmholtz resonance principle, the resonant frequency f0 is inversely proportional to the square root of the cavity volume V, i.e., f0 = f0 / f0. Therefore, by precisely adjusting the volume V, the pitch frequency of the horn can be changed, typically within the range of 300-600Hz, to adapt to different warning needs.
[0018] By setting exhaust ports on the main body, the sound generated by resonance can be radiated outward, thus achieving "non-contact" sound generation. There is no fragile diaphragm, which solves the problems of sound quality distortion and failure caused by diaphragm aging and high energy consumption in traditional electromagnetic speakers. The reliability is greatly improved. Moreover, at higher vehicle speeds, such as above 20km / h, natural wind energy can be directly utilized, significantly reducing power consumption, especially in new energy vehicles, which can extend the driving range. Furthermore, the structure is more adaptable to harsh environments, such as high temperature and water wading.
[0019] In addition, this application also provides a vehicle including the aforementioned airflow horn device.
[0020] Integrating the airflow horn device provided in this application into a vehicle, particularly installing it below the front bumper, provides the vehicle with a completely new and superior external auditory signal system. Because it does not use a fragile diaphragm and utilizes natural wind energy, it not only improves the reliability of the vehicle horn system but also enhances its economy and environmental adaptability. This solves the inherent defects of traditional vehicle horn systems, aligns with the automotive industry's trend towards intelligent and energy-efficient development, and significantly improves the vehicle's technological content and user experience. Attached Figure Description
[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the overall structure of the airflow whistle device provided in an embodiment of the present invention.
[0023] In the diagram: 1-Gas collection hood; 101-Air inlet; 102-Guide surface; 103-Air outlet; 2-First guide pipe; 3-Second guide pipe; 4-Resonance box; 401-Main body; 4011-Exhaust port; 402-Folding part; 5-Bearing plate; 6-Walking wheel; 7-First driving component; 8-Transmission shaft; 9-Second driving component; 10-Driving wheel; 11-Transmission wheel; 12-Driven wheel; 13-Air pump; 14-Guide rail. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0025] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0027] In the description of the embodiments of this application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "connect" 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 refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0028] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.
[0029] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” may be used herein to describe the relationship between one element and another as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also the different orientations of the device during use or operation.
[0030] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.
[0031] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.
[0032] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have various constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.
[0033] like Figure 1As shown, the present invention provides an airflow horn device for use as an external speaker for a vehicle, installed below the front bumper of the vehicle, including an air collection assembly, a guide assembly, and a resonance mechanism; the air inlet 101 of the air collection assembly faces the front of the vehicle, the air outlet 103 of the air collection assembly is connected to one end of the guide assembly, and the other end of the guide assembly is connected to the resonance mechanism; the resonance mechanism includes a resonance box 4 and an adjustment assembly, the resonance box 4 is composed of a main body 401 and a folding part 402, the adjustment assembly is connected to the folding part 402 and is used to drive the folding and releasing of the folding part 402, and the folding and releasing of the folding part 402 can increase or decrease the volume of the resonance box 4, and an exhaust port 4011 is formed on the main body 401.
[0034] Compared with existing technologies, the airflow whistle device provided by this invention has the following advantages: This invention provides an airflow horn device, the core of which lies in utilizing the principle of airflow resonance to replace traditional electromagnetic vibration sound generation. The device comprises three core parts: an air collection component, a guiding component, and a resonance mechanism. The air intake 101 of the air collection component faces forward of the vehicle, thereby capturing the natural airflow generated during vehicle movement. According to Bernoulli's principle, the greater the airflow velocity, the lower the pressure, which provides the initial power source for subsequent resonance sound generation.
[0035] The guiding component acts as an airflow channel, efficiently and smoothly guiding the airflow collected by the air-collecting component to the resonance mechanism. The resonance mechanism is crucial for sound generation; it consists of a resonance chamber 4 and an adjustment component. The resonance chamber 4 employs a unique design with a main body 401 and a folding section 402. The adjustment component dynamically changes the internal volume V of the resonance chamber 4 by driving the folding and releasing of the folding section 402. According to the Helmholtz resonance principle, the resonant frequency f0 is inversely proportional to the square root of the chamber volume V, i.e., f0 = f0 / f0. Therefore, by precisely adjusting the volume V, the pitch frequency of the horn can be changed, typically within the range of 300-600Hz, to adapt to different warning needs.
[0036] By using the exhaust port 4011 on the main body 401, the sound generated by resonance can be radiated outward, thus achieving "non-contact" sound generation without a fragile diaphragm. This solves the problems of sound quality distortion and failure caused by diaphragm aging and high energy consumption in traditional electromagnetic loudspeakers, greatly improving reliability. Furthermore, at higher vehicle speeds, such as exceeding 20 km / h, natural wind energy can be directly utilized, significantly reducing power consumption, especially extending the range of new energy vehicles. Moreover, the structure is more adaptable to harsh environments, such as high temperatures and water wading.
[0037] It should be added here that, such as Figure 1As shown, in this embodiment, the adjustment component can be a telescopic structure, such as a cylinder, which is located at the bottom of the folding part 402 and can be raised and lowered in the vertical direction. By using the extension and retraction of the cylinder, the folding part 402 can be pushed to fold or unfold, thereby changing the volume of the overall resonance box 4 and thus realizing the horn function.
[0038] Since the gas flow rate entering the gas collection component varies depending on the vehicle speed and external environment, this application can further integrate a flow rate sensor into the gas collection component to detect the gas flow rate. Based on the gas flow rate and vehicle speed, the volume of the resonance box 4 can be changed in real time, thereby ensuring the consistency of horn volume and sound quality to a certain extent.
[0039] Optionally, such as Figure 1 As shown, the gas collection assembly in this application includes a gas collection hood 1. The air inlet 101 of the gas collection hood 1 has a funnel-shaped structure. The bottom end of the gas collection hood 1 away from the air inlet 101 has two inclined guide surfaces 102 that converge toward the center, and an air outlet 103 is formed at the center of convergence. The air outlet 103 is connected to one end of the guide assembly.
[0040] This application maximizes the capture of airflow in front of the vehicle by making the air intake 101 of the air intake shroud 1 funnel-shaped, which can effectively improve the intake efficiency, especially when driving at medium and high speeds.
[0041] The bottom of the air collection hood 1 is designed with two inclined guide surfaces 102 that converge towards the center, thereby rectifying and accelerating the airflow. When the airflow enters from the wide air inlet 101, it is constrained by the guide surfaces 102 and guided to the central air outlet 103. According to the principles of fluid mechanics, the reduction in the cross-sectional area of the flow channel leads to an increase in airflow velocity, which helps to enhance the kinetic energy of the airflow entering the guide assembly, providing stronger power for the subsequent resonance process. Correspondingly, the air outlet 103 formed by the convergence center ensures that the airflow can be concentrated and directed into the guide assembly, reducing airflow loss and turbulence, and ensuring the stability of airflow delivery.
[0042] The gas collection hood 1 provided in this application can efficiently collect and pre-process natural airflow, optimize the initial state of the airflow, and enable sufficient airflow intensity to excite effective resonance even at relatively low vehicle speeds, thereby improving the working efficiency and responsiveness of the entire device.
[0043] Preferably, to ensure the service life of the overall device, a filter screen or other structure can be added at the air inlet 101 to prevent large dust particles and impurities from entering the internal structure and blocking the gas flow.
[0044] Optionally, such as Figure 1As shown, the guide assembly in this application includes a first guide tube 2 and a second guide tube 3. One end of the first guide tube 2 is connected to the air outlet 103, and the other end is connected to the second guide tube 3. The second guide tube 3 is sleeved outside the first guide tube 2, and the end of the second guide tube 3 away from the air collection assembly is connected to the air inlet of the resonance mechanism. The first guide tube 2 can extend into or out of the second guide tube 3.
[0045] The retractable duct design allows for adjustments to the position of the resonant mechanism relative to the gas collection assembly. When the acoustic characteristics of the entire device need to be adjusted or maintenance is required, the resonant mechanism may need to be moved. In this case, the retractable guide assembly ensures the continuity and sealing of the airflow path, preventing airflow leakage or interruption due to component movement.
[0046] The insertion and extension of the first guide tube 2 within the second guide tube 3 enable flexible adjustment of the overall length of the guide assembly. This ensures that airflow can be reliably delivered from the gas collection end to the resonance end regardless of the position of the resonance mechanism. This, to a certain extent, solves the problem that fixed pipes cannot adapt to moving parts, increases the flexibility and maintainability of the entire device layout, and ensures the efficiency of airflow transmission. It also provides a structural basis for realizing more complex control logic, such as automatically adjusting the position of components according to vehicle speed to optimize resonance.
[0047] Optionally, such as Figure 1 As shown, the resonance mechanism also includes a moving component. The resonance box 4 is mounted on the moving component. The moving component can move in a direction that approaches or moves away from the gas collection component to drive the resonance box 4 to move, causing the first guide tube 2 and the second guide tube 3 to contract or extend.
[0048] The moving component can drive the entire resonant mechanism to approach or move away from the air collection component, thereby directly causing the first guide tube 2 and the second guide tube 3 to contract or extend. From a technical perspective, the moving component achieves precise control of the relative distance between the resonant chamber 4 and the air collection component. Furthermore, since the cavity volume V and airflow velocity are related to vehicle speed, they need to be matched to achieve the best resonance effect. The presence of the moving component allows the device to dynamically adjust the length or pre-compression state of the airflow path, thereby changing the airflow conditions at the resonant cavity inlet. For example, at low speeds, the resonant chamber 4 can be moved closer to the air collection component to reduce pressure loss during airflow transmission; or the resonant characteristics of the entire system can be finely adjusted by moving the component, thus achieving, to a certain extent, the dynamic optimization of the airflow channel to adapt to different operating conditions. This, in turn, can improve the horn performance and adaptability of the device at different vehicle speeds, making sound control more precise and intelligent.
[0049] Optionally, such as Figure 1As shown, the moving component includes a support plate 5, a traveling wheel 6, a first driving component 7, and a transmission shaft 8; the transmission shaft 8 is connected to the output end of the first driving component 7, the traveling wheel 6 is connected to the transmission shaft 8, and the support plate 5 is rotatably connected to the transmission shaft 8.
[0050] This application provides a specific embodiment of a moving component, including a support plate 5, wheels 6, a first driving component 7, and a transmission shaft 8. The support plate 5 serves as a mounting platform for fixing components such as the resonant box 4. The wheels 6 are connected to the transmission shaft 8, which is driven by the first driving component 7 (such as a motor). When the first driving component 7 is working, it drives the wheels 6 to rotate via the transmission shaft 8, thereby causing the entire support plate 5 and the resonant mechanism on it to move along a preset path.
[0051] This mechanical transmission method is simple and reliable, providing stable linear motion. This enables the movement of the resonant box 4, converting the rotational motion of the driving component into the linear displacement of the resonant mechanism, ensuring the smoothness and precision of the movement process, and providing a solid mechanical foundation for the automated adjustment of the airflow whistle device.
[0052] It should be added here that, such as Figure 1 As shown, the output end of the first driving component 7 in this application is connected to a power wheel. In the embodiment of this application, the power wheel can be a gear. Correspondingly, a meshing wheel that corresponds to the position of the power wheel and meshes with it is connected to the transmission shaft 8, so that the driving force of the driving component can be transmitted to the transmission shaft 8 to realize the rotation of the walking wheel 6.
[0053] Of course, to ensure the stability of the overall structure, such as Figure 1 As shown, the moving component provided in this application also includes a driven wheel 12, which is arranged at intervals with the traveling wheel 6 along the length direction of the bearing plate 5.
[0054] The number of driven wheels 12 and the aforementioned traveling wheels 6 are both two, and the driven wheels 12 are also connected by a shaft, thereby achieving stable support for the bearing plate 5.
[0055] Preferably, in the vehicle provided in this application, a guide rail 14 groove is further provided at the corresponding position, and the traveling wheel 6 and the driven wheel 12 travel in the guide rail 14 groove, thereby ensuring the smooth movement of the entire moving assembly.
[0056] Optionally, such as Figure 1 As shown, the adjustment assembly includes a second drive member 9, a drive wheel 10, a transmission wheel 11, and a connecting shaft. The output end of the second drive member 9 is connected to the drive wheel 10, the drive wheel 10 meshes with the transmission wheel 11, the connecting shaft is connected to the transmission wheel 11, and the folding part 402 is connected to the connecting shaft.
[0057] The second driving component 9 in this application can use a micro stepper motor as a power source to drive the drive wheel 10 to rotate. The drive wheel 10 meshes with the transmission wheel 11, transmitting power to the transmission wheel 11. The connecting shaft is connected to the transmission wheel 11, ultimately transmitting the rotational motion to the folding part 402 connected to the connecting shaft. This gear transmission mechanism can precisely convert the rotational motion of the second driving component 9 into the folding or releasing action of the folding part 402, thereby achieving continuous and controllable adjustment of the volume V of the resonance box 4.
[0058] By controlling the rotation angle and direction of the second driving component 9, the degree of unfolding of the folding part 402 can be precisely controlled, thereby finely adjusting the resonance frequency f0. This achieves the purpose of accurately and reliably driving the deformation of the flexible cavity, thus realizing stepless and precise adjustment of the horn tone. This enables the device to emit warning sounds of multiple frequencies to adapt to the needs of complex urban traffic environments.
[0059] Optionally, such as Figure 1 As shown, the airflow whistle device provided in this application also includes an air pump 13, the air outlet of which is connected to the guide assembly.
[0060] The function of air pump 13 is to act as an auxiliary power source when natural airflow is insufficient, such as when the vehicle speed is ≤20km / h. The vehicle ECU determines the speed signal and, if the natural airflow is insufficient to ensure effective resonance sound generation, it activates air pump 13. Air pump 13 injects compressed air into the guide assembly at a pressure of approximately 0.2-0.5MPa, artificially supplementing the airflow power to ensure a sufficiently loud horn sound is produced at any vehicle speed.
[0061] Because the air pump 13 has a low power consumption of approximately 10W, far lower than the 50W-100W power consumption of traditional electromagnetic loudspeakers, it not only solves the technical problem of the airflow horn device losing sound at low speeds or when stationary, ensuring the applicability of the device to all working conditions and eliminating the performance shortcomings of traditional airflow horn devices at low speeds, but also reduces the overall vehicle energy consumption, making the device more suitable for electric vehicles.
[0062] Furthermore, such as Figure 1 As shown, the exhaust port 4011 in this application is located at the top of the main body 401.
[0063] Positioning the exhaust port 4011 at the top of the main body 401 facilitates the even upward and outward radiation of sound, preventing sound waves from being blocked or absorbed due to the exhaust direction being towards the ground or vehicle components. This ensures that the horn sound can propagate effectively, enhancing the warning effect. Furthermore, the top-mounted exhaust port 4011 is protected by the upper engine compartment structure, thus preventing rainwater, dust, and other foreign objects from falling directly into the resonance chamber 4 when the vehicle is stationary, improving the device's durability and environmental adaptability.
[0064] The shape of the exhaust port 4011 can be optimized according to acoustic diffusion requirements, such as using a circular, mesh, or louvered structure to balance sound pressure output efficiency and dust and water resistance.
[0065] In addition, this application also provides a vehicle that uses the above-mentioned airflow horn device.
[0066] Integrating the airflow horn device provided in this application into a vehicle, particularly installing it below the front bumper, provides the vehicle with a completely new and superior external auditory signal system. Because it does not use a fragile diaphragm and utilizes natural wind energy, it not only improves the reliability of the vehicle horn system but also enhances its economy and environmental adaptability. This solves the inherent defects of traditional vehicle horn systems, aligns with the automotive industry's trend towards intelligent and energy-efficient development, and significantly improves the vehicle's technological content and user experience.
[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An airflow horn device, used as an external speaker for a vehicle, mounted below the front bumper of the vehicle, characterized in that, This includes the gas collection assembly, the guiding assembly, and the resonance mechanism; The air inlet of the air collection assembly faces the front of the vehicle, the air outlet of the air collection assembly is connected to one end of the guide assembly, and the other end of the guide assembly is connected to the resonance mechanism. The resonance mechanism includes a resonance chamber and an adjustment assembly. The resonance chamber consists of a main body and a folding part. The adjustment assembly is connected to the folding part and is used to drive the folding and releasing of the folding part. The folding and releasing of the folding part can increase or decrease the volume of the resonance chamber. An exhaust port is formed on the main body.
2. The airflow whistle device according to claim 1, characterized in that, The gas collection assembly includes a gas collection hood, the air inlet of which has a funnel-shaped structure. The bottom end of the gas collection hood away from the air inlet has two inclined guide surfaces that converge toward the center, and an air outlet is formed at the center of the convergence. The air outlet is connected to one end of the guide assembly.
3. The airflow whistle device according to claim 1, characterized in that, The guiding component includes a first guiding tube and a second guiding tube. One end of the first guiding tube is connected to the air outlet, and the other end is connected to the second guiding tube. The second guiding tube is sleeved outside the first guiding tube, and the end of the second guiding tube away from the gas collecting component is connected to the air inlet of the resonance mechanism. The first guiding tube can extend into or out of the second guiding tube.
4. The airflow whistle device according to claim 3, characterized in that, The resonance mechanism further includes a moving component, and the resonance box is disposed on the moving component. The moving component is capable of moving towards or away from the gas collecting component to drive the resonance box to move, causing the first guide tube and the second guide tube to contract or extend.
5. The airflow whistle device according to claim 4, characterized in that, The moving component includes a support plate, wheels, a first drive component, and a transmission shaft; The drive shaft is connected to the output end of the first drive component, the walking wheel is connected to the drive shaft, and the bearing plate is rotatably connected to the drive shaft.
6. The airflow whistle device according to claim 5, characterized in that, The moving component also includes driven wheels, which are arranged at intervals with the traveling wheels along the length of the support plate.
7. The airflow whistle device according to claim 1, characterized in that, The adjustment assembly includes a second driving component, a driving wheel, a transmission wheel, and a connecting shaft. The output end of the second driving component is connected to the driving wheel, the driving wheel meshes with the transmission wheel, the connecting shaft is connected to the transmission wheel, and the folding part is connected to the connecting shaft.
8. The airflow whistle device according to claim 1, characterized in that, It also includes an air pump, the air outlet of which is connected to the guide assembly.
9. The airflow whistle device according to claim 1, characterized in that, The exhaust port is located at the top of the main body.
10. A vehicle, characterized in that, The airflow whistle device includes any one of claims 1-9 above.