Sound warning device and vehicle with same

Abstract

The utility model discloses a sound warning device and a vehicle with the sound warning device, the sound warning device is used for simulating the engine sound of the vehicle, the sound warning device comprises a loudspeaker suitable for being installed on the vehicle, and the loudspeaker is provided with a sound outlet; the horn is arranged at a sound outlet of the loudspeaker, a sound cavity communicated with the sound outlet is defined by the horn, and the sound cavity is configured to focus and increase sound of the loudspeaker. According to the sound warning device, the loudspeaker and the horn are arranged, and the horn is arranged at the sound outlet of the loudspeaker and is provided with the sound cavity, so that the using effect of the sound warning device when the sound warning device sends out sound warning to the outside of the vehicle can be well improved, and the loudspeaker can operate at relatively low power so as to meet related regulations; therefore, the noise transmitted into the cabin of the vehicle is well reduced, a driver and passengers feel more comfortable when driving the vehicle, and the driving experience is better.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to a sound warning device and a vehicle with the same. Background Art

[0002] A sound warning device needs to be installed in the vehicle to simulate the sound of the vehicle engine. When the vehicle is traveling at a low speed, the vehicle can simulate a louder vehicle engine sound through the sound warning device, thereby alerting pedestrians around the approaching vehicle, allowing pedestrians to notice the vehicle's driving conditions in time, thereby improving pedestrian safety.

[0003] In the related art, the sound warning device is usually installed in the vehicle. The structures such as the front grille, hood and lower guard plate in the vehicle hinder the sound emitted by the sound warning device from being transmitted to the outside of the vehicle, thereby making the warning effect of the sound warning device poor. In addition, the sound warning device makes a large amount of noise during operation, and the noise is transmitted to the inside of the cabin, so that the driver and passengers feel a large amount of sound source noise, thereby making the driving experience of the driver and passengers poor. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a sound warning device, which can have a good sound warning effect and can reduce noise during operation, so that the driving experience of the driver and passengers is better.

[0005] The utility model also provides a vehicle with the above-mentioned sound warning device.

[0006] According to the first aspect of the utility model, the sound warning device is used to simulate the engine sound of a vehicle, and the sound warning device includes: a speaker, which is suitable for being installed on the vehicle and has a sound outlet; a horn, which is arranged at the sound outlet of the speaker, and the horn defines a sound cavity connected to the sound outlet, and the sound cavity is configured to focus and amplify the sound of the speaker.

[0007] According to the sound warning device of the utility model, by arranging a speaker and a horn, the horn is arranged at the sound outlet of the speaker and has a sound cavity, so that the use effect of the sound warning device when issuing a sound warning to the outside of the vehicle can be greatly improved, and the speaker can operate at a lower power to meet relevant regulations, thereby greatly reducing the noise transmitted to the vehicle cabin, making the driver and passengers more comfortable when driving the vehicle and having a better driving experience.

[0008] In some embodiments of the present invention, the sound cavity includes a sound expansion section, and a cross-sectional area of ​​the sound expansion section gradually increases in a direction from the sound outlet toward the horn.

[0009] In one embodiment of the present invention, the inner wall surface of the sound expansion section is a rotation surface, and the rotation axis of the rotation surface is perpendicular to the plane where the sound outlet is located.

[0010] In some examples of the present invention, a generatrix of the inner wall surface of the sound amplification section is a straight line segment inclined relative to the vertical direction.

[0011] In an example of the present invention, the angle between the generatrix of the inner wall surface of the sound amplification section and the horizontal plane ranges from 45° to 60°.

[0012] In some examples of the present invention, the generatrix of the inner wall surface of the sound amplification section is an arc segment.

[0013] In one embodiment of the present invention, the sound cavity further comprises: a gathering section, the gathering section is connected to the sound expansion section, and the cross-sectional area of ​​the gathering section remains unchanged or gradually increases in the direction from the sound outlet toward the horn.

[0014] In an example of the present invention, the focusing section is connected to a side of the sound expansion section facing the sound outlet.

[0015] In one embodiment of the utility model, a lug is provided on the outer peripheral surface of the horn, and a mounting hole is provided on the lug. The horn is suitable for being fastened to the vehicle by a fastener passing through the mounting hole.

[0016] In one embodiment of the present invention, the speaker is provided with a mounting groove, the mounting groove extends in a ring shape along the circumference of the sound outlet, and one end of the horn is fixed in the mounting groove.

[0017] In some embodiments of the utility model, the speaker further includes: a shell, the shell forming a accommodating cavity, the sound outlet formed on the shell; and a sound-emitting member, the sound-emitting member is disposed in the accommodating cavity, and the sound-emitting member emits sound toward the sound outlet.

[0018] In an embodiment of the present invention, the sound outlet is formed in a grille shape.

[0019] The vehicle according to the second aspect of the utility model comprises the sound warning device according to the first aspect of the utility model.

[0020] According to the vehicle of the utility model, by setting the sound warning device of the first aspect mentioned above, by setting a speaker and a horn, the horn is set at the sound outlet of the speaker and has a sound cavity, the use effect of the sound warning device when issuing a sound warning to the outside of the vehicle can be greatly improved, and the speaker can operate at a lower power to meet relevant regulations, thereby greatly reducing the noise transmitted to the vehicle cabin, making the driver and passengers more comfortable when driving the vehicle and having a better driving experience.

[0021] In some embodiments of the utility model, the vehicle includes a lower guard plate, the sound warning device is fixed on the upper side of the lower guard plate, the lower guard plate is provided with an opening, and the outlet of the sound cavity is arranged downward and toward the opening.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is an exploded view of a sound warning device according to an embodiment of the utility model;

[0024] Figure 2 is a cross-sectional view of a sound warning device according to an embodiment of the utility model;

[0025] Figure 3 is a cross-sectional view of a loudspeaker according to an embodiment of the utility model;

[0026] Figure 4 1 is a sound pressure curve diagram of the sound warning device without a horn and with a horn according to an embodiment of the utility model.

[0027] Reference numerals:

[0028] 10. speaker; 101. accommodating cavity;

[0029] 11. housing; 111. upper housing; 112. lower housing; 1121. sound outlet; 1122. mounting slot; 12. sound-generating member;

[0030] 20, horn; 201, sound cavity; 2011, gathering section; 2012, amplification section;

[0031] 21. Lug; 211. Mounting hole;

[0032] 100. Sound warning device. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] Reference below Figure 1-Figure 4 The following describes a sound warning device 100 according to an embodiment of the first aspect of the present invention.

[0035] like Figure 1-Figure 4 As shown, the sound warning device 100 according to the embodiment of the first aspect of the utility model is used to simulate the engine sound of a vehicle. The sound warning device 100 includes: a speaker 10 and a horn 20. The speaker 10 is suitable for being installed on a vehicle. The speaker 10 has a sound outlet 1121; the horn 20 is arranged at the sound outlet 1121 of the speaker 10. The horn 20 defines a sound cavity 201 connected to the sound outlet 1121. The sound cavity 201 is configured to focus and amplify the sound of the speaker 10.

[0036] In this embodiment, a speaker 10 is provided in the sound warning device 100. The speaker 10 can emit sound as required to simulate the engine sound of a vehicle, thereby playing a role in warning pedestrians and the like.

[0037] In this embodiment, a horn 20 is provided at the sound outlet 1121 of the speaker 10, and a sound cavity 201 is defined inside the horn 20. The sound cavity 201 focuses and amplifies the sound emitted by the speaker 10, so that the sound pressure of the sound coming out of the sound cavity 201 is higher. The sound cavity 201 can gather and guide the sound, which can well reduce the transmission loss of the sound, so that the sound can be efficiently transmitted to the outside of the vehicle, and the sound pressure of the sound transmitted to the outside of the vehicle can more easily reach the required sound pressure level to meet the relevant regulations, thereby making the warning effect of the sound warning device 100 better.

[0038] It can be understood that when the speaker 10 emits a warning sound, the sound pressure of the sound outside the vehicle needs to meet the requirements of regulations in order to achieve an effective sound warning effect. In this embodiment, the horn 20 can effectively increase the sound pressure of the speaker 10, so that when the speaker 10 is in operation, the speaker 10 can reduce the power required for the operation of the speaker 10 while meeting the requirements of regulations, thereby reducing the sound warning device 100 transmitted to the interior of the cabin when it is in operation, so that the driver and passengers can obtain a quieter and more comfortable driving environment, thereby giving the driver and passengers a better driving experience.

[0039] According to the sound warning device 100 of the embodiment of the utility model, by providing a speaker 10 and a horn 20, the horn 20 is provided at the sound outlet 1121 of the speaker 10 and has a sound cavity 201, which can greatly improve the use effect of the sound warning device 100 when issuing a sound warning to the outside of the vehicle, and the speaker 10 can operate at a lower power to meet relevant regulations, thereby greatly reducing the noise transmitted to the vehicle cabin, making the driver and passengers more comfortable when driving the vehicle and having a better driving experience.

[0040] In some embodiments of the present invention, Figure 2As shown, the sound cavity 201 may include a sound expansion section 2012 , and the cross-sectional area of ​​the sound expansion section 2012 gradually increases in the direction from the sound outlet 1121 toward the horn 20 .

[0041] In this embodiment, the cross-sectional area of ​​the sound expansion section 201222 gradually increases in the direction from the sound outlet 1121 toward the horn 20, so that the sound is focused under the action of the sound cavity 201 during the process of being transmitted from the speaker 10 along the sound cavity 201, so that the sound pressure of the sound transmitted from the sound cavity 201 is greatly improved, so that the speaker 10 can more easily emit a sound with a sound pressure level that meets the regulatory requirements to the outside of the vehicle when performing sound simulation, so that the sound warning device 100 can better meet the needs of use, and the speaker 10 can operate in the vehicle with a smaller power while meeting the regulatory requirements, thereby reducing the noise generated when the speaker 10 is in operation, and then reducing the noise level transmitted to the cabin, so that the driver and passengers can be in a quieter and more comfortable driving environment, thereby greatly improving the driving experience of the driver and passengers.

[0042] In one embodiment of the present invention, reference Figure 1 As shown, the inner wall surface of the sound amplification section 2012 can be a rotation surface, and the rotation axis of the rotation surface is perpendicular to the plane where the sound outlet 1121 is located.

[0043] In this embodiment, the inner wall surface of the sound amplification section 2012 is set as a revolving surface, which has a simple structure. The revolving surface can diffuse the sound in all directions toward the inner wall surface, so that the sound can be stably transmitted and focused along the sound amplification section 2012, so that the horn 20 can stably play the role of amplifying the sound.

[0044] In some examples of the present invention, Figure 2 As shown, the generatrix of the inner wall surface of the sound amplification section 2012 may be a straight line segment inclined relative to the vertical direction.

[0045] In the present embodiment, the generatrix of the inner wall surface of the sound expansion section 2012 is set as a straight line segment inclined relative to the vertical direction, so that the inner wall surface of the sound expansion section 2012 maintains a smooth inner wall surface structure in the direction along the sound outlet 1121 toward the horn 20, thereby avoiding the sound being obstructed when transmitting in the sound expansion section 2012 and causing disturbances in the transmission direction and energy loss, so that the sound pressure can be steadily increased along the sound cavity 201 and transmitted from the horn 20 to the outside of the vehicle.

[0046] In an example of the present invention, the angle between the generatrix of the inner wall surface of the sound amplification section 2012 and the horizontal plane may range from 45° to 60°.

[0047] It can be understood that the sound amplification effect of the sound expansion section 2012 is closely related to the structural shape of the inner wall surface of the sound expansion section 2012. In this embodiment, the angle between the generatrix of the inner wall surface of the sound expansion section 2012 and the horizontal plane can range from 45° to 60°. This can avoid the situation where the cross-sectional area of ​​the sound expansion section 2012 changes too much when the angle is small, resulting in a decrease in the sound gathering and focusing effect, or the sound is transmitted along the sound expansion section 2012. Rapid attenuation occurs as the diffusion space changes significantly.

[0048] It is understandable that the sound is transmitted in space during the transmission of the sound amplification section 2012, and the inner wall of the sound amplification section 2012 plays a guiding role in the transmission of the sound. When the angle between the generatrix of the inner wall of the sound amplification section 2012 and the horizontal plane has a large value range, the guiding effect of the sound amplification section 2012 on the sound transmission is too obvious, making the sound too concentrated after being transmitted from the horn 20, thereby reducing the diffusion coverage of the sound.

[0049] In this embodiment, the angle between the generatrix of the inner wall surface of the sound expansion section 2012 and the horizontal plane is limited to a range of 45° to 60°, so that the sound emitted by the speaker 10 can form a higher sound pressure under the action of the sound expansion section 2012 in the horn 20, and have a larger diffusion coverage area outside the vehicle, so that the sound warning device 100 can achieve a good sound warning effect.

[0050] For example Figure 2 As shown in the figure, the angle α is represented by the angle between the generatrix of the inner wall surface of the sound reinforcement section 2012 and the horizontal plane, and the angle α can be 45 degrees, 46 degrees, 48 ​​degrees, 50 degrees, 55 degrees, 60 degrees, etc. The value of the angle α can be reasonably set according to the actual situation.

[0051] In some examples of the present invention, the generatrix of the inner wall surface of the sound amplification section 2012 may be an arc segment.

[0052] In this embodiment, the generatrix of the inner wall surface of the sound amplifying section 2012 is set as an arc segment, which can provide a smoother propagation path for the transmission of sound, reduce the reflection generated by the inner wall surface during the sound transmission process, thereby reducing the distortion of the sound, and making the clarity and fidelity of the sound after it is transmitted from the horn 20 better. Specifically, the shape of the generatrix of the inner wall surface of the sound amplifying section 2012 can be reasonably set according to actual design needs, so that the sound can obtain a better focusing effect when it is transmitted along the sound amplifying section 2012, so that the sound pressure of the sound coming out of the horn 20 is higher and has a better coverage range.

[0053] In one embodiment of the present invention, Figure 2As shown, the sound cavity 201 may further include: a focusing section 2011 , the focusing section 2011 is connected to the amplifying section 2012 , and in the direction from the sound outlet 1121 toward the horn 20 , the cross-sectional area of ​​the focusing section 2011 remains unchanged or gradually increases.

[0054] In this embodiment, a gathering section 2011 is provided in the sound cavity 201, and the gathering section 2011 is connected to the amplifying section 2012. The gathering section 2011 can play the role of gathering the sound emitted by the speaker 10, so that the sound waves of the sound can enter the amplifying section 2012 in a more orderly and concentrated manner, thereby facilitating subsequent amplification operations or allowing the sound to be stably diffused to the outside of the vehicle. In this embodiment, the cross-sectional area of ​​the gathering section 2011 remains unchanged or gradually increases, which can facilitate the smooth and continuous transmission of the sound from the gathering section 2011 to the amplifying section 2012, so that the sound can be stably and well transmitted and amplified in the sound cavity 201.

[0055] In one example of the present invention, Figure 2 As shown, the focusing section 2011 can be connected to the side of the sound expansion section 2012 facing the sound outlet 1121.

[0056] In this embodiment, the gathering section 2011 is connected to the side of the amplifying section 2012 facing the sound outlet 1121. The structure is simple and the arrangement is reasonable, so that the sound can first be gathered by the gathering section 2011 and then enter the amplifying section 2012 for amplification, so that the horn 20 can stably and reliably process the sound emitted by the speaker 10, so that the sound warning device 100 can obtain a good sound warning effect.

[0057] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, a lug 21 may be provided on the outer peripheral surface of the horn 20 , and a mounting hole 211 is provided on the lug 21 . The horn 20 is suitable for being fastened to the vehicle by fasteners passing through the mounting hole 211 .

[0058] In this embodiment, a lug 21 is provided on the horn 20, and a mounting hole 211 is provided on the lug 21. The horn 20 is fastened to the lower guard plate by fasteners passing through the mounting hole 211. The structure is simple, the fixation is convenient, and the disassembly, replacement and maintenance are convenient.

[0059] In this embodiment, the horn 20 is fastened to the lower guard plate, which can facilitate the installation and fixation of the speaker 10. Since the sound expansion section 2012 of the horn 20 is a tapered tube section and the cross section gradually increases, the horn 20 can play a good supporting and fixing role for the speaker 10, so that the connection and fixation stability of the horn and the lower guard plate is better, and to a certain extent, the risk of shell vibration during low-frequency vibration of the vehicle can be reduced. The horn 20 separates the lower guard plate from the speaker 10, so that the speaker 10 and the lower guard plate have a certain distance, thereby to a certain extent preventing external dirt, rainwater, etc. from splashing to the sound outlet 1121 of the speaker 10, so that the speaker 10 can operate more stably and lastingly. At the same time, since the sound expansion section 2012 of the horn 20 is a tapered tube section and the cross section gradually increases, it can well prevent dust and rainwater from accumulating in the sound cavity 201, so that the sound can be transmitted outward along the sound cavity 201 more smoothly and stably.

[0060] In some examples of the present invention, Figure 1 As shown, the number of lugs 21 can be multiple, and the multiple lugs 21 can be arranged at intervals along the circumference of the horn 20. In this way, the connection and fixation between the horn 20 and the lower guard plate can be more firmly and reliably. For example, the number of lugs 21 can be two, three, four, five, six, etc., and the number of lugs 21 can be set as needed.

[0061] In one embodiment of the present invention, Figure 1 and Figure 3 As shown, the loudspeaker 10 may be provided with a mounting groove 1122 , the mounting groove 1122 extending in a ring shape along the circumference of the sound outlet 1121 , and the upper end of the horn 20 is fixed in the mounting groove 1122 .

[0062] In this embodiment, a mounting groove 1122 is provided on the speaker 10, and the upper end of the horn 20 is fixed in the mounting groove 1122. The structure is simple, and the positioning and assembly of the horn 20 and the speaker 10 are facilitated, making the assembly and fixation of the speaker 10 and the horn 20 more convenient and stable.

[0063] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the speaker 10 may further include: a shell 11 and a sound-emitting member 12 , wherein the shell 11 is formed with a receiving cavity 101 , and a sound outlet 1121 is formed on the shell 11 ; the sound-emitting member 12 is disposed in the receiving cavity 101 , and emits sound toward the sound outlet 1121 .

[0064] In this embodiment, the speaker 10 is provided with a housing 11 and a sound-generating member 12. The housing 11 has a housing cavity 101. A sound outlet 1121 is formed on the housing 11. The sound-generating member 12 is arranged in the housing cavity 101. The structure is simple. The housing 11 can play a good protective role for the sound-generating member 12, so that the speaker 10 can operate stably. In this embodiment, a sound outlet 1121 is formed on the housing 11. The sound-generating member emits sound toward the sound outlet 1121. The structure is simple and the arrangement is reasonable. The sound can be smoothly transmitted through the sound outlet 1121, so as to meet the operation requirements of the speaker 10.

[0065] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the sound outlet 1121 can be formed in a grille shape, which can provide good protection for the generator in the accommodating cavity 101 at the sound outlet 1121 and enable the sound to be stably transmitted from the sound outlet 1121, with a simple structure and reasonable design.

[0066] In some examples of the present invention, the width and spacing of the grille at the sound outlet 1121 can be set to 2 mm. In this way, the grille can play a good protective role while causing less obstruction to the transmission of sound, so that the speaker 10 can stably and reliably emit sound to the outside.

[0067] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, the shell 11 may include: an upper shell 111 and a lower shell 112, the upper shell 111 and the lower shell 112 are arranged in the up and down direction, the upper shell 111 and the lower shell 112 cooperate to define the accommodating cavity 101, and the lower end of the lower shell 112 forms a sound outlet 1121.

[0068] In this embodiment, the housing 11 is configured as an upper housing 111 and a lower housing 112 , which has a simple structure and is convenient for assembling the housing 11 and the sound-emitting member 12 .

[0069] Reference below Figure 1-Figure 4 A vehicle according to an embodiment of the second aspect of the utility model is described.

[0070] like Figure 1-Figure 4 As shown, a vehicle according to an embodiment of the utility model includes: a sound warning device 100 according to an embodiment of the first aspect of the utility model.

[0071] Other structures and operations of the vehicle guard plate assembly according to the embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.

[0072] According to the vehicle of the embodiment of the utility model, by setting the sound warning device 100 of the above-mentioned first aspect embodiment, the sound warning device 100 is provided with a speaker 10 and a horn 20, and the horn 20 is arranged at the sound outlet 1121 of the speaker 10 and has a sound cavity 201, which can greatly improve the use effect of the sound warning device 100 when issuing a sound warning to the outside of the vehicle, and the speaker 10 can operate at a lower power to meet relevant regulations, thereby greatly reducing the noise transmitted to the vehicle cabin, making the driver and passengers more comfortable when driving the vehicle and having a better driving experience.

[0073] In some embodiments of the present invention, the vehicle may include a lower guard plate, the sound warning device 100 is fixed on the upper side of the lower guard plate, the lower guard plate is provided with an opening, and the outlet of the sound cavity 201 is arranged downward and toward the opening.

[0074] In this embodiment, the sound warning device 100 is arranged on the upper side of the lower guard plate, so that the lower guard plate can play a good protective role for the sound warning device 100, so that the sound warning device 100 can be in a good operating environment. An opening is set on the lower guard plate, and the outlet of the sound cavity 201 is set toward the opening. When the sound warning device 100 is arranged on the upper side of the lower guard plate, the lower guard plate can be prevented from blocking the sound. The sound emitted by the sound outlet 1121 can pass through the opening and be smoothly transmitted to the outside of the vehicle, thereby playing a good sound warning role.

[0075] When the speaker 10 makes a sound, the sound can be transmitted downward along the sound cavity 201 to the outside of the vehicle, thereby effectively avoiding the obstruction of sound propagation caused by the front grille, hood, etc. of the vehicle, greatly reducing the transmission of sound inside the vehicle, and thus effectively reducing the transmission of sound into the vehicle cabin, making the sound pressure level of the sound source noise from the sound warning device 100 in the cabin smaller, thereby greatly reducing the noise fatigue of the driver and passengers, and providing the driver and passengers with a better driving experience.

[0076] In this embodiment, the outlet of the sound cavity 201 is arranged toward the opening, so that the sound can be transmitted to the outside of the vehicle more conveniently and smoothly, reducing the transmission loss of sound pressure inside the vehicle, so that the speaker 10 can more easily meet the sound pressure requirement of the vehicle warning sound outside the vehicle, and to a certain extent, the operating power of the speaker 10 can be smaller, thereby reducing the amount of sound transmitted to the interior of the cabin to a certain extent, further reducing the noise fatigue of the driver and passengers in the cabin, making the driver and passengers more comfortable and having a better driving experience.

[0077] The following will refer to Figure 1-Figure 4 A vehicle according to a specific embodiment of the present invention is described.

[0078] like Figure 1-Figure 4As shown, the vehicle includes a vehicle guard plate assembly, which includes a lower guard plate and a sound warning device 100. The sound warning device 100 is arranged on the upper side of the lower guard plate, and the lower guard plate is provided with an opening.

[0079] The sound warning device 100 includes a speaker 10 and a horn 20. The speaker 10 includes a housing 11 and a sound-emitting member 12. The housing 11 includes an upper housing 111 and a lower housing 112. The upper housing 111 cooperates with the lower housing 112 to define a housing cavity 101. The sound-emitting member 12 is disposed in the housing cavity 101. A sound outlet 1121 is formed on the lower housing. The sound outlet 1121 is formed in a grille shape. The lower housing 112 forms a mounting groove 1122 around the sound outlet 1121. The horn 20 extends in the up-down direction, the upper end of the horn 20 penetrates into the mounting groove 1122 and is bonded and fixed to the loudspeaker 10, four lugs 21 are formed around the lower end of the horn 20, and mounting holes 211 are provided on the four lugs 21. The horn 20 is fastened to the lower guard plate through fasteners passing through the mounting holes 211, and a sound cavity 201 is formed on the inner side of the horn 20, and the sound cavity 201 is connected to the sound outlet 1121 and the opening.

[0080] The sound cavity 201 includes a gathering section 2011 and a sound amplifying section 2012. The inner wall surface of the gathering section 2011 and the inner wall surface of the sound amplifying section 2012 can be connected by chamfering so that the gathering section 2011 and the sound amplifying section 2012 form a continuous and smooth inner wall surface. The dimensions of the gathering section 2011 and the sound amplifying section 2012 in the up and down directions and the cross-sectional shapes of the gathering section 2011 and the sound amplifying section 2012 can be adjusted and changed accordingly according to the needs of sound amplification and the shape of the sound outlet 1121 of the speaker 10 to meet the needs of the sound warning device 100 to transmit sound to the outside. The angle between the generatrix of the inner wall surface of the sound amplifying section 2012 and the horizontal plane can be adjusted as needed.

[0081] refer to Figure 2 and 4 As shown, curve L2 in the figure represents a sound pressure curve of the sound warning device 100 without the horn 20 in a specific embodiment, and curve L1 in the figure represents a sound pressure curve of the sound warning device 100 provided with the horn 20. It can be seen from the figure that in the medium and high frequency ranges of 400 Hz to 2200 Hz and 4.5 KHz to 12 KHz, the sound pressure level of the sound transmitted to the outside by the sound warning device 100 provided with the horn 20 is greatly improved.

[0082] The vehicle of this embodiment is provided with a speaker 10 and a horn 20. The horn 20 is arranged at the sound outlet 1121 of the speaker 10 and has a sound cavity 201. This can greatly improve the use effect of the sound warning device 100 when issuing a sound warning to the outside of the vehicle, and the speaker 10 can operate at a lower power to meet relevant regulations, thereby greatly reducing the noise transmitted to the vehicle cabin, making the driver and passengers more comfortable when driving the vehicle and having a better driving experience.

[0083] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0084] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0085] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0086] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0087] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A sound warning device, characterized in that: Used to simulate the engine sound of a vehicle, the sound warning device comprises: A speaker, the speaker is suitable for being installed on the vehicle, the speaker having a sound outlet; A horn is provided at the sound outlet of the loudspeaker, the horn defines a sound cavity communicated with the sound outlet, and the sound cavity is configured to focus and amplify the sound of the loudspeaker.

2. The sound warning device according to claim 1, characterized in that: The sound cavity comprises a sound expansion section, and a cross-sectional area of ​​the sound expansion section gradually increases in a direction from the sound outlet toward the horn.

3. The sound warning device according to claim 2, characterized in that: The inner wall surface of the sound amplification section is a rotation surface, and the rotation axis of the rotation surface is perpendicular to the plane where the sound outlet is located.

4. The sound warning device according to claim 3, characterized in that: The generatrix of the inner wall surface of the sound amplification section is a straight line segment inclined relative to the vertical direction.

5. The sound warning device according to claim 4, characterized in that: The angle between the generatrix of the inner wall surface of the sound amplification section and the horizontal plane ranges from 45° to 60°.

6. The sound warning device according to claim 3, characterized in that: The generatrix of the inner wall surface of the sound amplification section is an arc segment.

7. The sound warning device according to any one of claims 2 to 6, characterized in that: The sound cavity further includes: a gathering section, which is connected to the sound expansion section. In the direction from the sound outlet toward the horn, the cross-sectional area of ​​the gathering section remains unchanged or gradually increases.

8. The sound warning device according to claim 7, characterized in that: The focusing section is connected to a side of the sound expansion section facing the sound outlet.

9. The sound warning device according to claim 1, characterized in that: A lug is arranged on the outer peripheral surface of the horn, and a mounting hole is arranged on the lug. The horn is suitable for being fastened and connected to the vehicle by a fastener passing through the mounting hole.

10. The sound warning device according to claim 1, characterized in that: The loudspeaker is provided with a mounting groove, the mounting groove extends in a ring shape along the circumference of the sound outlet, and one end of the horn is fixed in the mounting groove.

11. The sound warning device according to claim 1, characterized in that: The speaker also includes: A housing, wherein the housing is provided with a receiving cavity and the sound outlet is formed on the housing; A sound-emitting member is disposed in the accommodating cavity and emits sound toward the sound outlet.

12. The sound warning device according to claim 11, characterized in that: The sound outlet is formed in a grille shape.

13. A vehicle, characterized in that: include: The sound warning device according to any one of claims 1 to 12.

14. The vehicle according to claim 13, characterized in that The vehicle comprises a lower guard plate, the sound warning device is fixed on the upper side of the lower guard plate, the lower guard plate is provided with an opening, and the outlet of the sound cavity is arranged downward and toward the opening.

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