Sound production device and vehicle

Abstract

The application discloses a sound production device and a vehicle. The sound production device comprises a mounting carrier, a high-pitched loudspeaker and a medium-pitched loudspeaker. The high-pitched loudspeaker is arranged on the mounting carrier and has a first state. The sound production device has an up-down direction. The high-pitched sound emitting surface of the high-pitched loudspeaker in the first state is arranged in an inclined upward manner. The medium-pitched loudspeaker is arranged on the mounting carrier. The medium-pitched sound emitting surface of the medium-pitched loudspeaker is arranged in an upward manner. The center line of the medium-pitched sound emitting surface of the medium-pitched loudspeaker intersects with the center line of the high-pitched sound emitting surface of the high-pitched loudspeaker in the first state. The technical scheme of the application can improve the acoustic effect of the sound production device.

Description

Technical Field

[0001] This invention relates to the field of sound-generating devices, and particularly to a sound-generating device and a vehicle using the sound-generating device. Background Technology

[0002] Currently, most sound-generating devices typically only have one speaker. In this case, having only one speaker means the device can only play the frequency range corresponding to that speaker, resulting in a limited range of applicable sound frequencies and negatively impacting the device's acoustic performance. Summary of the Invention

[0003] The main objective of this invention is to provide a sound-generating device that improves the acoustic performance of the sound-generating device.

[0004] To achieve the above objectives, the sound-generating device proposed in this invention includes:

[0005] Installation carrier;

[0006] A tweeter, wherein the tweeter is disposed on the mounting carrier and has a first state, the sound-emitting device is defined to have a vertical direction, and the tweeter's high-frequency sound-emitting surface in the first state is inclined upwards; and

[0007] A midrange speaker is provided on the mounting carrier, with the midrange sound output surface of the midrange speaker facing upwards. The center line of the midrange speaker passing through the midrange sound output surface intersects with the center line of the tweeter passing through the tweeter sound output surface in the first state.

[0008] Optionally, the angle formed by the center line of the midrange speaker passing through the center line of the midrange sound output surface and the center line of the tweeter in the first state passing through the center line of the tweeter sound output surface is defined as α, satisfying the relationship: 60°≤α<90°.

[0009] Optionally, the angle formed by the center line of the tweeter's sound-emitting surface and the vertical direction when the tweeter is in the first state is defined as β, satisfying the relationship: 70°≤β<90°.

[0010] Optionally, when the tweeter is in the first state, the center point of the tweeter sound-emitting surface is higher than the center point of the midrange sound-emitting surface, and a portion of the tweeter sound-emitting surface is lower than the midrange sound-emitting surface.

[0011] Optionally, when the tweeter is in the first state, the projected length of the distance between the center point of the tweeter sound outlet and the center point of the midrange sound outlet in the vertical direction is defined as L1, and the projected length of the tweeter sound outlet in the vertical direction is defined as L2, satisfying the relationship: 0.3≤L1 / L2≤0.5.

[0012] Optionally, the number of the tweeter and the midrange speaker is one, and the sound-generating device is defined to have a front-to-back direction perpendicular to the vertical direction, with the tweeter and the midrange speaker arranged sequentially from front to back;

[0013] On a horizontal projection plane, the line connecting the center point of the high-frequency sound-emitting surface and the center point of the mid-frequency sound-emitting surface is parallel to the front-back direction.

[0014] Optionally, the mounting carrier has a mounting cavity, the midrange speaker is located in the mounting cavity, and the tweeter is located on the outer side of the top wall of the mounting cavity;

[0015] The mounting cavity forms the front and rear sound chambers of the midrange speaker, and the front and rear sound chambers are isolated from each other;

[0016] The top wall of the mounting cavity is provided with a mid-range sound outlet and a connecting hole. The mid-range sound outlet is connected to the front sound cavity, and the connecting hole is connected to the rear sound cavity.

[0017] Optionally, the midrange speaker and the top wall of the mounting cavity are spaced apart, and the sound-generating device further includes a sealing element, which is disposed between the top wall of the mounting cavity and the midrange speaker, and surrounds the midrange sound-emitting surface;

[0018] The top wall of the mounting cavity, the sealing element, and the midrange speaker enclose the front sound cavity, and the space in the mounting cavity other than the front sound cavity forms the rear sound cavity.

[0019] Optionally, the sealing element is made of foam;

[0020] And / or, the distance between the midrange speaker and the top wall of the mounting cavity is defined as d, satisfying the relationship: 5 mm ≤ d ≤ 15 mm.

[0021] Optionally, the sound-generating device is further defined to have a front-to-back direction and a left-to-right direction perpendicular to the vertical direction, and the tweeter and the mid-range speaker are arranged sequentially from front to back; the number of mid-range sound outlets and the number of connecting holes are both multiple, and they are combined in the front-to-back direction to form multiple rows of hole groups and in the left-to-right direction to form multiple columns of hole groups, and the connecting lines formed by the multiple mid-range sound outlets and multiple connecting holes in each row of hole groups and each column of hole groups are arranged in a wavy shape;

[0022] And / or, the area of ​​the mid-range sound outlet is greater than the area of ​​the connecting hole.

[0023] Optionally, the top wall of the mounting cavity, excluding the area where the tweeter is mounted, has an outwardly convex curved surface structure.

[0024] Optionally, the angle formed by the center line of the midrange speaker through the midrange sound output surface and the vertical direction is defined as γ, satisfying the relationship: 0°<γ≤10°.

[0025] Optionally, a mounting groove is formed by a partial recess in the top wall of the mounting cavity facing the inside of the mounting cavity, and the tweeter is disposed in the mounting groove.

[0026] Optionally, the tweeter is rotatably disposed in the mounting groove, and the tweeter is in the first state when it is rotated out of the opening of the mounting groove;

[0027] When the tweeter is rotated back from the opening of the mounting slot, it forms a second state. In the second state, the center line of the tweeter passing through the tweeter's sound output surface is parallel to the vertical direction.

[0028] Optionally, in the second state, one end of the tweeter having the tweeter sound-emitting surface protrudes from the opening of the mounting groove.

[0029] Optionally, in the vertical direction, the height of the tweeter is defined as H, and the height of the tweeter protruding from the opening of the mounting groove is defined as h, satisfying the relationship: 0 < h / H ≤ 0.5.

[0030] Optionally, the tweeter also has a rear back surface, which is connected to the tweeter sound output surface. The rear back surface is convex spherical and has a center. The rotation axis of the tweeter passes through the center of the sphere.

[0031] The mounting groove has a spherical wall, the center of which coincides with the center of the rear back surface.

[0032] Optionally, the groove wall of the mounting groove further includes an inclined wall surface, which is connected to the spherical wall surface;

[0033] The inclined wall surface away from the spherical wall surface forms the opening of the mounting groove, and the inclined wall surface is flared in the direction from bottom to top.

[0034] Optionally, the tweeter is provided with a connecting shaft, which passes through the wall of the mounting groove and extends into the rear acoustic cavity of the mounting cavity;

[0035] The sound-generating device further includes a drive mechanism located within the rear acoustic cavity and connected to the connecting shaft extending into the rear acoustic cavity to drive the tweeter to rotate.

[0036] Optionally, the driving mechanism includes a driving element and a transmission assembly, the transmission assembly including a first transmission wheel and a second transmission wheel;

[0037] The first transmission wheel is connected to the driving member and can be driven to rotate by the driving member;

[0038] The second transmission wheel is connected to the connecting shaft that extends into the mounting cavity. The axis of the second transmission wheel and the axis of the first transmission wheel are arranged side by side. The second transmission wheel can be driven to rotate by the first transmission wheel.

[0039] Optionally, the axis of the second drive wheel is inclined downwards.

[0040] Optionally, the tweeter has a sphere center, and the axis of the second transmission wheel passes through the sphere center of the tweeter. On a vertical section passing through the axis of the second transmission wheel, the angle formed by the axis of the second transmission wheel and the up-down direction is defined as p, satisfying the relationship: 45°≤p≤70°.

[0041] And / or, on a vertical projection plane, the angle formed by the line connecting the projection of the center of the first transmission wheel and the projection of the center of the second transmission wheel and the vertical direction is defined as m, satisfying the relationship: 30°≤m≤50°.

[0042] Optionally, the first transmission wheel and the second transmission wheel are gears;

[0043] And / or, the transmission assembly further includes a conveyor belt, the two ends of which are sleeved on the first transmission wheel and the second transmission wheel;

[0044] Alternatively, the transmission assembly may further include a mounting shaft, a worm gear, and a worm, wherein the axis of the worm gear coincides with the axis of the first transmission wheel, and both the worm gear and the first transmission wheel are mounted on the first mounting shaft; the worm is connected to the driving member and can be driven to rotate by the driving member, and the worm also meshes with the worm gear.

[0045] Optionally, the mounting carrier includes:

[0046] A bottom shell, one end of which has an opening;

[0047] A cover plate that closes to the opening of the bottom shell, the cover plate also having an mounting opening; and

[0048] The cover is installed at the mounting port, and the mounting groove is formed inside the cover. The cover, the cover plate, and the bottom shell surround the mounting cavity. The midrange sound outlet and the connecting hole are located on the cover plate.

[0049] The present invention also proposes a vehicle comprising:

[0050] The vehicle body; and

[0051] A sound-generating device, wherein the sound-generating device is as described above, and the sound-generating device is disposed on the vehicle body.

[0052] Optionally, the direction of the vehicle body's forward movement is defined as the front-rear direction, the number of the sound-generating devices is one, the sound-generating device is located at the middle of the front end of the vehicle body, and the high-frequency sound-emitting surface of the high-frequency horn in the sound-generating device is arranged facing the rear and upward.

[0053] Alternatively, the vehicle body may also have a left-right direction perpendicular to the front-rear direction, and the number of sound-generating devices is at least two, with the two sound-generating devices respectively located on the left and right sides of the front end of the vehicle body. The high-frequency sound-emitting surface of the tweeter in the left-side sound-generating device is arranged facing the upper right rear, and the high-frequency sound-emitting surface of the tweeter in the right-side sound-generating device is arranged facing the upper left rear.

[0054] The sound-generating device of this invention, during use, features both a tweeter and a midrange speaker on its mounting carrier. This allows for targeted playback of high-frequency and mid-frequency sounds respectively, enhancing the playback effect of each. In other words, the sound-generating device can handle a wider range of sound frequencies, effectively balancing the playback of both high-frequency and mid-frequency sounds, thus improving its acoustic performance. Crucially, the midrange speaker's output surface faces upwards, allowing for better sound radiation in all directions, further enhancing the device's midrange sound playback performance. In the first state, the tweeter's high-frequency output surface is tilted upwards, and the center line of the tweeter's high-frequency output surface intersects with the center line of the midrange tweeter's midrange output surface. This allows the relatively directional tweeter to better direct sound towards the user, reducing the possibility of the highly directional high-frequency sound being blocked or reflected by other objects, thus improving the sound-generating device's high-frequency sound playback effect. Therefore, the structural design of the sound-generating device in this solution, while enriching the types of applicable sound frequencies it can play, also significantly improves the playback effect of mid-frequency and high-frequency sounds, thereby further enhancing the acoustic performance of the sound-generating device. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0056] Figure 1 This is a schematic diagram of the high-frequency speaker of the sound-generating device of the present invention in its second state;

[0057] Figure 2 This is a schematic diagram of the high-frequency speaker of the sound-generating device of the present invention in its first state;

[0058] Figure 3 for Figure 2 A cross-sectional schematic diagram of the sound-generating device;

[0059] Figure 4 for Figure 2 A schematic diagram of the structure of the cover of the sound-generating device;

[0060] Figure 5 This is a schematic diagram of the assembly structure of the tweeter, cover, and drive structure of the sound-generating device of the present invention.

[0061] Figure 6 For this Figure 5 A cross-sectional schematic diagram of the tweeter and the enclosure in the middle;

[0062] Figure 7 for Figure 5 A schematic diagram of the tweeter and drive structure from a perspective.

[0063] Figure 8 for Figure 5 Another perspective schematic diagram of the tweeter and drive structure.

[0064] Explanation of icon numbers:

[0065] 100 Sound-generating device 31 High-frequency sound source 10 Installation carrier 33 Back 11 Mounting cavity 35 Connecting shaft 111 front cavity 50 Midrange speaker 113 Back cavity 51 Midrange soundboard 13 bottom shell 70 Seals 15 cover plate 90 Drive mechanism 151 Midrange sound hole 91 Drive components 153 Connecting hole 93 Transmission components 155 Installation port 931 First transmission wheel 17 Cover 932 Second drive wheel 171 Mounting slot 933 Conveyor belt 173 spherical wall 934 Mounting shaft 175 Inclined wall 935 worm gear 30 tweeter 936 worm gear

[0066] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0067] 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 a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0068] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0069] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0070] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. 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.

[0071] A sound-generating device is a device that can produce sound. Specifically, a sound-generating device contains a speaker, and sound is produced by the vibration of this speaker. However, current sound-generating devices in the industry typically only contain one speaker. In this case, the setting of only one speaker means that the sound-generating device can only play the frequency type corresponding to that speaker, thus making the frequency types of sound that the sound-generating device can play relatively limited, which in turn affects the acoustic performance of the sound-generating device.

[0072] Based on the above considerations, and in order to solve the problem of poor acoustic performance of current sound-generating devices in the industry, this application proposes a novel sound-generating device. This device innovatively combines a tweeter and a midrange speaker on the mounting carrier to better balance the playback of high-frequency and mid-frequency sounds. Furthermore, the midrange speaker's midrange surface is positioned upwards, while the tweeter's tweeter's tweeter surface is tilted upwards. The center line of the midrange speaker's midrange surface intersects with the center line of the tweeter's tweeter surface in its first state, allowing both the midrange and tweeter speakers to effectively respond to the user's needs, thereby improving the playback of high-frequency and mid-frequency sounds and ultimately enhancing the overall acoustic performance of the sound-generating device.

[0073] In addition, it should be noted that the sound-generating device proposed in this application can be used in vehicles and other equipment as described below. Of course, the sound-generating device can also be used independently, for example, as a home speaker or an outdoor speaker.

[0074] The structure of the sound-generating device proposed in this application will be explained and described below with reference to specific embodiments. In one embodiment of this application, please refer to the reference. Figures 1 to 3 The sound-generating device 100 proposed in this application includes a mounting carrier 10, a tweeter 30, and a midrange speaker 50. The tweeter 30 is disposed on the mounting carrier 10 and has a first state. The sound-generating device 100 is defined to have a vertical direction. The tweeter 30 in the first state has its tweeter surface 31 tilted upwards. The midrange speaker 50 is disposed on the mounting carrier 10. The midrange speaker 50 has its midrange surface 51 facing upwards. The center line of the midrange speaker 50 passing through the midrange surface 51 intersects with the center line of the tweeter 30 in the first state passing through the tweeter surface 31.

[0075] The mounting carrier 10 provides mounting positions for mounting the tweeter 30 and midrange speaker 50. The mounting carrier 10 can be a shell structure, a plate structure, or a frame structure. This application does not limit the structural form of the mounting carrier 10, as long as it can effectively mount the tweeter 30 and midrange speaker 50. Similarly, this application does not limit the shape of the mounting carrier 10; it can be any shape such as circular, square, or rectangular. Furthermore, when the sound-generating device 100 is used in vehicles or other equipment, the mounting carrier 10 can be directly formed from a part of the vehicle's body structure, such as the dashboard, or it can be formed independently of other objects on the vehicle body.

[0076] The tweeter 30 can be used to adaptively play high-frequency sounds. Furthermore, the first state of the tweeter 30 is as follows: Figure 2 and Figure 3The upright position of the tweeter 30 shown represents its operational state. The tweeter 30 can be fixedly connected to the mounting carrier 10, maintaining this first position. Alternatively, it can be rotatably connected to the mounting carrier 10, as described below, allowing it to rotate to the first position when needed. In the first position, the tweeter 30's high-frequency sound-emitting surface 31 is tilted upwards, meaning it can emit sound at an upward angle. The vertical direction of the sound-emitting device 100 is defined with the device itself as the reference frame, in its normal operating position. For example, when the sound-emitting device 100 is used in a vehicle, the vertical direction is perpendicular to the ground supporting the vehicle. At this time, the tweeter surface 31 of the tweeter 30 is tilted upwards, allowing it to be positioned more effectively towards the head of the user inside the vehicle. This facilitates the efficient transmission of the highly directional sound emitted by the tweeter 30 to the user's head, ensuring effective head reception. Furthermore, the number of tweeters 30 can be one, or two or more. Additionally, the tweeter 30 can be exposed on the outside of the mounting carrier 10, or it can be built into the inside of the mounting carrier 10; this application does not limit this.

[0077] The midrange speaker 50 can be used to adaptively play mid-frequency sounds. Furthermore, the midrange sound-emitting surface 51 of the midrange speaker 50 is positioned upwards, meaning that when the sound-emitting device 100 is in its normal operating state, the midrange speaker 50 can emit sound upwards. This upward sound emission includes both vertically upward sound emission and tilted upward sound emission; this application does not specifically limit this. The center line of the midrange speaker 50 passing through the midrange sound-emitting surface 51 intersects the center line of the tweeter 30 in the first state passing through the tweeter's sound-emitting surface 31. In other words, the sound emission direction of the midrange speaker 50 and the sound emission direction of the tweeter 30 in the first state can intersect, allowing them to better correspond to the user's side for sound emission. Additionally, the number of midrange speakers 50 can be one, or two or more. Furthermore, the midrange speaker 50 may be exposed on the outside of the mounting carrier 10, or it may be built into the inside of the mounting carrier 10; this application does not limit this.

[0078] During use, the sound-generating device 100 of the present invention, with both a tweeter 30 and a midrange speaker 50 mounted on the mounting carrier 10, allows for targeted playback of high-frequency and mid-frequency sounds respectively, enhancing the playback effect of each. In other words, the sound-generating device 100 can play a wider variety of sound frequencies, effectively balancing the playback of both high-frequency and mid-frequency sounds, thus improving the acoustic performance of the device. More importantly, the midrange speaker 50's midrange sound-emitting surface 51 faces upwards, allowing it to radiate sound effectively in all directions, further enhancing the playback effect of the midrange sound. The tweeter 30 in the first state has its tweeter surface 31 tilted upwards, and the center line of the tweeter surface 31 in the first state intersects with the center line of the midrange surface 51 of the midrange speaker 50. This allows the relatively directional tweeter 30 to better direct sound towards the user, reducing the possibility of the highly directional high-frequency sound emitted by the tweeter 30 being blocked or reflected by other objects, thereby improving the playback effect of the sound-generating device 100 on high-frequency sounds. Therefore, the structural design of the sound-generating device 100 in this solution not only enriches the frequency types of sounds it can play, but also significantly improves the playback effect of mid-frequency and high-frequency sounds, thus further enhancing the acoustic effect of the sound-generating device 100.

[0079] Please refer to Figure 3 In one embodiment of this application, the angle formed by the center line of the midrange speaker 50 through the midrange sound output surface 51 and the center line of the tweeter 30 through the tweeter sound output surface 31 in the first state is defined as α, which satisfies the relationship: 60°≤α<90°.

[0080] In this embodiment, the angle α formed by the center line of the midrange speaker 50 passing through the midrange sound outlet surface 51 and the center line of the tweeter 30 passing through the tweeter sound outlet surface 31 in the first state is set to 60° to 90°. This ensures that the tweeter 30, in the first state, is neither excessively tilted nor excessively tilted. In other words, this setting allows the tweeter 30 to have a suitable tilt angle, thus enabling it to better face the user and improve its acoustic performance, thereby enhancing the user's sound experience. The angle α formed by the center line of the midrange speaker 50 passing through the midrange sound outlet surface 51 and the center line of the tweeter 30 passing through the tweeter sound outlet surface 31 in the first state can be 560°, 65°, 70°, 75°, 80°, 85°, or 89°, or any value within this range.

[0081] The above describes how the tweeter 30 achieves a suitable tilt angle by limiting the angle between the midrange speaker 50 and the tweeter 30. However, in one embodiment of this application, the tweeter 30 can also achieve a suitable tilt angle by unilaterally limiting its mounting posture. That is, please refer to... Figure 3 The angle β formed by the center line of the high-frequency sound-emitting surface 31 of the tweeter 30 in the first state and the vertical direction is defined as 70°≤β<90°. This ensures that the tweeter 30, in the first state, is neither excessively tilted nor excessively tilted, allowing it to be positioned correctly towards the user for optimal sound output. The angle β formed by the center line of the high-frequency sound-emitting surface 31 of the tweeter 30 in the first state and the vertical direction can be 70°, 75°, 80°, 85°, or 89°, or any value within this range.

[0082] Please refer to Figure 3 In one embodiment of this application, when the tweeter 30 is in the first state, the center point of the tweeter sound-emitting surface 31 is higher than the center point of the midrange sound-emitting surface 51, and a portion of the tweeter sound-emitting surface 31 is lower than the midrange sound-emitting surface 51.

[0083] In this embodiment, the center point of the tweeter surface 31 is higher than the center point of the midrange surface 51, allowing the tweeter 30 to be higher than the midrange speaker 50. This effectively avoids the midrange speaker 50 obstructing the tweeter 30, ensuring that the tweeter 30 can still produce sound effectively while both the tweeter 30 and midrange speaker 50 are in place, thus maintaining good acoustic performance. Furthermore, by lowering a portion of the tweeter surface 31 below the midrange surface 51, the tweeter 30 and midrange speaker 50 can be arranged very compactly, further reducing the overall size of the sound-producing device 100 and improving its ease of installation within the limited space of a vehicle. It should be noted that this application is not limited to this; in other embodiments, when the tweeter 30 is in the first state, the lowest point of the tweeter surface 31 may also be higher than the midrange surface 51. Even when the mounting carrier 10 has a large volume, it is acceptable to set the position of the tweeter 30 lower than that of the midrange speaker 50. In this case, it is sufficient to ensure that the midrange speaker 50 does not obstruct the sound direction of the tweeter 30.

[0084] In one embodiment of this application, when the tweeter 30 is in the first state, the projected length of the distance between the center point of the tweeter sound-emitting surface 31 and the center point of the midrange sound-emitting surface 51 in the vertical direction is defined as L1, and the projected length of the tweeter sound-emitting surface 31 in the vertical direction is defined as L2, satisfying the relationship: 0.3≤L1 / L2≤0.5.

[0085] In this embodiment, the ratio of the vertical projection length L1 of the distance between the center point of the tweeter 31 and the center point of the midrange 51 to the vertical projection length L2 of the tweeter 31 is set to 0.3 to 0.5. This ensures that the tweeter 30 and midrange 50 do not overlap too little in the vertical direction, resulting in a large overall volume formed by the combination of the tweeter 30 and midrange 50. Simultaneously, it also ensures that the vertical overlap between the tweeter 30 and midrange 50 is not too large, thus preventing the midrange 50 from affecting its sound emission avoidance effect on the tweeter 30. Therefore, this ratio of L1 to L2 balances the compact distribution of the tweeter 30 and midrange 50 with the sound emission avoidance effect of the midrange 50 on the tweeter 30. The ratio of L1 to L2 can be 0.3, 0.35, 0.4, 0.45, or 0.5, or any value within the above range.

[0086] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the number of tweeters 30 and midrange speakers 50 is one each. The sound-emitting device 100 is defined to have a front-back direction perpendicular to the vertical direction. The tweeters 30 and midrange speakers 50 are arranged sequentially from front to back. On a horizontal projection plane, the line connecting the center point of the tweeter sound-emitting surface 31 and the center point of the midrange sound-emitting surface 51 is parallel to the front-back direction.

[0087] In this embodiment, the number of tweeters 30 and midrange speakers 50 is set to one each, which reduces the overall size of the sound-generating device 100 and improves the convenience of its installation in a limited space. Furthermore, the tweeters 30 and midrange speakers 50 are arranged sequentially from front to back, and the line connecting the center point of the tweeter surface 31 and the center point of the midrange surface 51 is parallel to the front-back direction. This allows both the tweeters 30 and midrange speakers 50 to be well-centered within the sound-generating device 100. That is, the tweeters 30 and midrange speakers 50 can be located on the center line of the sound-generating device 100 in the front-back direction, thus improving the compactness of their distribution on the mounting carrier 10. On the other hand, this front-back direction is still defined with the sound-generating device 100 itself as the reference frame; that is, the side facing the tweeter 30 is considered the rear side, and the user can be positioned on that side. At this time, the tweeter 30 can be used to emit sound towards the user, thereby improving the acoustic effect of the tweeter 30 when emitting sound to the user. Since the midrange speaker 50 is located behind the tweeter 30, when the midrange speaker 50 emits sound to the user located behind it, the tweeter 30, located in the first state, will not obstruct the sound emission process, thus also improving the acoustic effect of the midrange speaker 50 when emitting sound to the user. Therefore, this arrangement of the relative positions of the tweeter 30 and the midrange speaker 50 not only improves the compactness of their distribution on the mounting carrier 10, but also further enhances the correspondence between the tweeter 30 and the user's position, thereby improving the acoustic effect of the sound-emitting device 100. Of course, it should be noted that this application is not limited to this; in other embodiments, it is also possible for the line connecting the center point of the tweeter sound-emitting surface 31 and the center point of the midrange sound-emitting surface 51 on a horizontal projection plane to form an angle with the front-back direction of the sound-emitting device 100.

[0088] Please refer to the reference. Figures 1 to 3 In one embodiment of this application, the mounting carrier 10 is provided with a mounting cavity 11, a mid-range speaker 50 is disposed in the mounting cavity 11, and a tweeter 30 is disposed on the outer side of the top wall of the mounting cavity 11; the mounting cavity 11 forms a front sound cavity 111 and a rear sound cavity 113 for the mid-range speaker 50, and the front sound cavity 111 and the rear sound cavity 113 are isolated from each other; the top wall of the mounting cavity 11 is provided with a mid-range sound outlet 151 and a connecting hole 153, the mid-range sound outlet 151 is connected to the front sound cavity 111, and the connecting hole 153 is connected to the rear sound cavity 113.

[0089] In this embodiment, a mounting cavity 11 is provided within the mounting carrier 10. Since the midrange speaker 50 is relatively large, placing it within the mounting cavity 11 further improves the compactness of its distribution on the mounting carrier 10, thereby reducing the overall size of the sound-generating device 100 and improving the convenience of its subsequent installation. Simultaneously, the mounting cavity 11 also forms the front sound cavity 111 and the rear sound cavity 113 of the midrange speaker 50, thus amplifying the sound emitted by the midrange speaker 50 and improving its acoustic performance. Furthermore, the front sound cavity 111 and the rear sound cavity 113 are isolated from each other, preventing interference and cancellation of sound waves that could result in low volume or poor timbre, further improving the acoustic performance of the midrange speaker 50. In addition, the cavity wall of the mounting cavity 11 also provides isolation and protection for the midrange speaker 50, reducing the possibility of damage from external objects and thus extending its service life. Furthermore, the tweeter 30 is positioned on the outside of the mounting carrier 10, so that the tweeter 30 can be exposed for operation, and the mounting carrier 10 will not obstruct the strong directional sound emitted by the tweeter 30, thereby improving the acoustic effect of the tweeter 30.

[0090] Please refer to Figure 3 In one embodiment of this application, the midrange speaker 50 and the top wall of the mounting cavity 11 are spaced apart. The sound-generating device 100 also includes a sealing member 70, which is disposed between the top wall of the mounting cavity 11 and the midrange speaker 50 and surrounds the midrange sound-emitting surface 51. The top wall of the mounting cavity 11, the sealing member 70 and the midrange speaker 50 enclose a front sound cavity 113, and the space in the mounting cavity 11 other than the front sound cavity 111 is formed as a rear sound cavity 113.

[0091] In this embodiment, a gap is provided between the midrange speaker 50 and the top wall of the mounting cavity 11, and then a sealing element 70 is provided between the two to enclose and form the front sound cavity 111. At this time, the mounting carrier 10, the sealing element 70, and the midrange speaker 50 can be manufactured independently first, and then assembled together to directly enclose the front sound cavity 111 and the rear sound cavity 113. This simplifies the structure of the mounting carrier 10, thereby improving its processing convenience. On the other hand, the sealing effect of the sealing element 70 can also improve the sealing performance of the front sound cavity 111, thereby improving the isolation effect between the front sound cavity 111 and the rear sound cavity 113. The sealing element 70 can be made of foam. Since foam has good elasticity, can bend freely, and has a good sound insulation effect, it helps to improve the sealing effect of the sealing element 70 on the front sound cavity 111. Of course, it should be noted that this application is not limited to this; in other embodiments, the sealing element 70 can also be made of rubber or silicone, etc.

[0092] Please refer to Figure 3 In one embodiment of this application, the distance between the midrange speaker 50 and the top wall of the mounting cavity 11 is defined as d, which satisfies the relationship: 5 mm ≤ d ≤ 15 mm.

[0093] In this embodiment, the distance d between the midrange speaker 50 and the top wall of the mounting cavity 11 is set to 5 mm to 15 mm. On the one hand, this ensures that the distance d between the midrange speaker 50 and the top wall of the mounting cavity 11 is not too small, which would make the front sound cavity 111 too small, affecting the subsequent sound output and the ease of forming the front sound cavity 111. On the other hand, it also ensures that the distance d between the midrange speaker 50 and the top wall of the mounting cavity 11 is not too large, which would make the mounting carrier 10 too large, affecting the ease of installing the sound-generating device 100 in the limited space. Therefore, by setting the distance d between the midrange speaker 50 and the top wall of the mounting cavity 11 in this way, both the acoustic effect of the midrange speaker 50 and the overall size of the sound-generating device 100 can be considered. The distance d between the midrange speaker 50 and the top wall of the mounting cavity 11 can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, or 15mm, or any value within the above range. Furthermore, when the midrange speaker 50's diaphragm forms the midrange sound output surface 51, the distance d between the midrange speaker 50 and the top wall of the mounting cavity 11 can specifically be the distance between the surround in the diaphragm of the midrange speaker 50 and the top wall of the mounting cavity 11.

[0094] Please refer to the reference. Figures 1 to 4In one embodiment of this application, the sound-generating device 100 is defined to have a front-back direction and a left-right direction perpendicular to the up-down direction. The tweeter 30 and the mid-range horn 50 are arranged sequentially from front to back. There are multiple mid-range sound outlet holes 151 and multiple connecting holes 153, which are combined in the front-back direction to form multiple rows of hole groups and in the left-right direction to form multiple columns of hole groups. The connecting lines formed by the multiple mid-range sound outlet holes 151 and multiple connecting holes 153 in each row of hole groups and each column of hole groups are arranged in a wavy shape.

[0095] In this embodiment, the arrangement of multiple mid-range sound outlets 151 allows the airflow within the front acoustic cavity 111 to flow smoothly out of the mid-range sound outlet surface 51, thereby further improving the acoustic performance of the sound-generating device 100. The multiple connecting holes 153 allow the mid-range speaker 50 to better balance the air pressure in the rear acoustic cavity 113 during sound generation. Furthermore, the connecting lines formed by the sequential connection of multiple mid-range sound outlets 151 and multiple connecting holes 153 in each row and column of hole groups are arranged in a wavy pattern, ensuring a relatively uniform distribution of the mid-range sound outlets 151 and connecting holes 153 in both the front-to-back and left-to-right directions. This also results in a more novel distribution, enhancing the aesthetics of the sound-generating device 100 and improving its market competitiveness. In another embodiment, the mid-range sound outlets 151 and connecting holes 153 can be configured as elliptical holes, further enhancing the aesthetics of the sound-generating device 100 with a more novel shape.

[0096] Please refer to Figure 4 In one embodiment of this application, the area of ​​the mid-range sound outlet 151 is larger than the area of ​​the connecting hole 153.

[0097] Please refer to Figure 3 In this embodiment, the area of ​​the mid-range sound outlet 151 is set to be larger than the area of ​​the connecting hole 153, while the volume of the front sound cavity 111 is relatively small, which helps to improve the smoothness of the airflow in the front sound cavity 111 flowing out of the mid-range sound outlet 151 and thus improve the sound production effect.

[0098] In one embodiment of this application, the top wall of the mounting cavity 11, excluding the area where the tweeter 30 is mounted, has an outwardly convex curved surface structure.

[0099] In this embodiment, the area of ​​the top wall of the mounting cavity 11, excluding the area corresponding to the tweeter 30, is designed as a convex curved structure. This reduces the height of the area of ​​the top wall of the mounting cavity 11 corresponding to the midrange speaker 50, thereby improving the sound avoidance effect on the tweeter 30 in the first state. Furthermore, the curved structure also gives the top wall of the mounting cavity 11 a novel shape, further enhancing the aesthetics of the sound-generating device 100. To maintain a good distance between the midrange speaker 50 and the top wall of the mounting cavity 11, in one embodiment of this application, the angle formed by the center line of the midrange sound output surface 51 of the midrange speaker 50 and the vertical direction is defined as γ, satisfying the relationship: 0° < γ ≤ 10°. This allows the midrange speaker 50 to be tilted, facilitating a uniform distance between the diaphragm of the midrange speaker 50 and the top wall of the mounting cavity 11. Simultaneously, it prevents the midrange speaker 50 from tilting too much, allowing it to primarily operate upwards for sound generation. The angle γ formed by the center line of the midrange sound output surface 51 of the midrange speaker 50 and the vertical direction can be 1°, 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9° or 10°, or any value within the above range.

[0100] Please refer to the reference. Figure 2 and Figure 3 In one embodiment of this application, the top wall of the mounting cavity 11 is partially recessed towards the inside of the mounting cavity 11 to form a mounting groove 171, and the tweeter 30 is disposed in the mounting groove 171.

[0101] In this embodiment, a mounting groove 171 is provided on the top wall of the mounting cavity 11 corresponding to the area of ​​the tweeter 30. This groove allows the tweeter 30 to be accommodated, facilitating the arrangement where the tweeter's high-frequency output surface 31 in the first state is lower than the mid-frequency output surface 51 of the mid-frequency speaker 50. This improves the compactness of the tweeter 30 and mid-frequency speaker 50 on the mounting carrier 10. Furthermore, the mounting groove 171 is formed by a partial indentation of the top wall of the mounting cavity 11. This eliminates the need for a thicker wall at this location due to the mounting groove 171, thereby reducing the amount of raw materials used and lowering the manufacturing cost of the mounting carrier 10.

[0102] Please refer to the reference. Figures 1 to 3 In one embodiment of this application, the tweeter 30 is rotatably disposed in the mounting groove 171. When the tweeter 30 is rotated out of the groove of the mounting groove 171, it forms a first state; when the tweeter 30 is rotated back from the groove of the mounting groove 171, it forms a second state. The center line of the high-frequency sound output surface 31 of the tweeter 30 in the second state is parallel to the vertical direction.

[0103] In this embodiment, the tweeter 30 is configured to be rotatable, so that when the tweeter 30 needs to be used, it can be rotated to a first state, such as... Figure 2 and Figure 3 As shown; when not in use, it can be rotated to the second state, as shown. Figure 1 As shown. The rotation of the tweeter 30 adds a dynamic, ritualistic element to its use, increasing enjoyment and enhancing the user experience. Furthermore, since the tweeter 30 can retract into the mounting slot 171 in its second state, the overall height of the sound-emitting device 100 can be lowered when not in use, thereby expanding the user's forward viewing angle. The tweeter 30 can be rotated manually via a damping shaft. Alternatively, its rotation can be automatically driven by the drive mechanism 90, as described below.

[0104] Please refer to the reference. Figure 5 and Figure 6 In one embodiment of this application, in the second state, the tweeter 30 has one end of the tweeter sound-emitting surface 31 protruding from the groove of the mounting groove 171.

[0105] In this embodiment, the end of the tweeter 30 with the tweeter sound-emitting surface 31 is configured to protrude from the opening of the mounting groove 171 in the second state, which can improve the exposure effect of the tweeter sound-emitting surface 31 of the tweeter 30. At this time, when the tweeter 30 is rotated to the first state and protrudes from the opening of the mounting groove 171 into an upright state, the possibility of the groove wall of the mounting groove 171 obstructing the tweeter 30 can also be reduced, so that the sound emitted by the tweeter 30 can be better radiated to the side facing the tweeter sound-emitting surface 31. Of course, it should be noted that this application is not limited to this. In other embodiments, the end of the tweeter 30 with the tweeter sound-emitting surface 31 may also be flush with the opening of the mounting groove 171, or completely located within the mounting groove 171.

[0106] Please refer to Figure 6 In one embodiment of this application, the height of the tweeter 30 is defined as H in the vertical direction, and the height of the tweeter 30 protruding from the groove of the mounting groove 171 is defined as h, satisfying the relationship: 0 < h / H ≤ 0.5.

[0107] In this embodiment, when the ratio h / H between the height h of the tweeter 30 protruding from the opening of the mounting groove 171 and the height H of the tweeter 30 is greater than 0.5, the tweeter 30 can be better exposed. However, the mounting groove 171 can only accommodate a small portion of the tweeter 30 at this time. Therefore, in order to balance the storage and protection effect of the tweeter 30 in the mounting groove 171 with the subsequent radiation sound effect, the value of h / H is set to h / H≤0.5. The value of h / H can be 0.1, 0.2, 0.3, 0.4, or 0.5, or any value within the above range. Furthermore, it should be noted that when the tweeter 30's high-frequency sound-emitting surface 31 is a plane, h is the height of the plane above the opening of the mounting groove 171; when the tweeter 30's high-frequency sound-emitting surface 31 is a curved surface, h can be the height of the highest point of the curved surface above the opening of the mounting groove 171.

[0108] Please refer to Figure 6 In one embodiment of this application, the tweeter 30 also has a rear back surface 33, which is connected to the tweeter sound output surface 31. The rear back surface 33 is convex spherical and has a center. The rotation axis of the tweeter 30 passes through the center of the sphere. The groove wall of the mounting groove 171 includes a spherical wall surface 173, and the center of the spherical wall surface 173 coincides with the center of the rear back surface 33.

[0109] In this embodiment, the rear surface 33 of the tweeter 30 is spherical, and the wall of the mounting groove 171 is provided with a matching spherical wall surface 173. This improves the compactness between the tweeter 30 and the mounting carrier 10, thereby reducing the overall size of the sound-generating device 100. Simultaneously, this arrangement prevents the tweeter 30 from interfering with the spherical wall surface 173, which has a corresponding rotation trajectory shape, during rotation, thus improving the safety of the tweeter 30 during rotation. The rear surface 33 of the tweeter 30 can abut against the spherical wall surface 173 of the mounting groove 171; however, a gap can also be formed between them to reduce wear caused by the rotation of the tweeter 30.

[0110] Please refer to Figure 6 In one embodiment of this application, the groove wall of the mounting groove 171 further includes an inclined wall surface 175, which is connected to the spherical wall surface 173. The end of the inclined wall surface 175 away from the spherical wall surface 173 encloses the groove opening of the mounting groove 171, and the inclined wall surface 175 is flared in the direction from bottom to top.

[0111] In this embodiment, since an flared inclined wall 175 is provided at the opening of the mounting groove 171, when the tweeter 30 is rotated to the first state where the tweeter sound output surface 31 extends out of the opening of the mounting groove 171, the inclined wall 175 can better avoid the sound radiated by the tweeter sound output surface 31, so as to further improve the sound output effect of the tweeter 30.

[0112] In one embodiment of this application, the tweeter 30 is provided with a connecting shaft 55, which passes through the groove wall of the mounting groove 171 and extends into the rear sound cavity 113 of the mounting cavity 11; the sound-generating device 100 also includes a drive mechanism 90, which is disposed in the rear sound cavity 113 and connected to the connecting shaft 55 extending into the rear sound cavity 1131 to drive the tweeter 30 to rotate.

[0113] In this embodiment, the drive mechanism 90 enables the automatic driving of the tweeter 30 by the sound-generating device 100. This further enhances the intelligence level of the sound-generating device 100, thereby improving the user experience. Furthermore, placing the drive mechanism 90 within the rear acoustic cavity 113 of the mounting cavity 11 improves the compactness of its distribution on the mounting carrier 10 and enhances its isolation and protection. The connecting shaft 55 can be located on the rear back surface 33 of the tweeter 30. Additionally, the drive mechanism 90 can include a drive component 91 and a transmission assembly 93, as described below; alternatively, it can consist only of the drive component 91, ensuring that the tweeter 30 can be driven.

[0114] Please refer to Figure 5 In one embodiment of this application, the drive mechanism 90 includes a drive member 91 and a transmission assembly 93. The transmission assembly 93 includes a first transmission wheel 931 and a second transmission wheel 932. The first transmission wheel 931 is connected to the drive member 91 and can be driven to rotate by the drive member 91. The second transmission wheel 932 is connected to a connecting shaft 55 extending into the mounting cavity 11. The axis of the second transmission wheel 932 and the axis of the first transmission wheel 931 are arranged side by side. The second transmission wheel 932 can be driven to rotate by the first transmission wheel 931.

[0115] The driving component 91 can provide power, and the transmission assembly 93 can transmit the motion of the driving component 91 to the tweeter 30, thereby indirectly driving the tweeter 30. The driving component 91 can be a motor, such as a stepper motor or a servo motor, which is not limited in this application. Alternatively, the driving component 91 can also be a rotary cylinder. That is, the driving component 91 only needs to provide rotational driving force. The first transmission wheel 931 and the second transmission wheel 932 in the transmission assembly 93 can be rollers, which may be used in conjunction with the conveyor belt 933. Alternatively, the first transmission wheel 931 and the second transmission wheel 932 can be gears, which can be directly meshed or further used in conjunction with the conveyor belt 933. Or, the first transmission wheel 931 and the second transmission wheel 932 can be sprockets, which require the use of a conveyor chain. Therefore, this application does not limit the specific types of the first transmission wheel 931 and the second transmission wheel 932 in the transmission assembly 93, as long as the first transmission wheel 931 can transmit the rotation of the driving member 91 to the second transmission wheel 932.

[0116] In this embodiment, the drive mechanism 90 is configured to include a drive component 91 and a transmission assembly 93. This allows the transmission assembly 93 to ensure the tweeter 30 achieves a suitable transmission ratio, preventing the tweeter 30 from rotating too quickly and affecting the stability of the sound-generating device 100. Furthermore, it allows the drive component 91 to be installed at various points around the tweeter 30's rotational circumference, reducing the requirements for its installation location and improving ease of installation. This also provides a foundation for a more compact installation of the drive mechanism 90.

[0117] Please refer to the reference. Figure 5 , Figure 7 as well as Figure 8 In one embodiment of this application, the axis of the second transmission wheel 932 is inclined downward.

[0118] In this embodiment, the axis of the second transmission wheel 932 is set to be inclined downwards, which allows more of the tweeter 30 to protrude from the opening of the mounting groove 171 after rotating around this axis, so that the tweeter 30 is better exposed to the user for sound emission. Of course, it should be noted that this application is not limited to this; in other embodiments, the axis of the second transmission wheel 932 may also be horizontally arranged.

[0119] Please refer to the reference. Figure 5 and Figure 8In one embodiment of this application, the tweeter 30 has a sphere center, and the axis of the second transmission wheel 932 passes through the sphere center of the tweeter 30. On a vertical section passing through the axis of the second transmission wheel 932, the angle formed by the axis of the second transmission wheel 932 and the up-down direction is defined as p, which satisfies the relationship: 45°≤p≤70°.

[0120] The tweeter 30 has a spherical center, or the tweeter 30 as a whole can be a spherical structure. Alternatively, one surface of the tweeter 30 can be a spherical surface, such as the back surface 33 of the tweeter 30 mentioned above, which has a spherical structure. The goal is to ensure that the tweeter 30 can be shaped like a spherical center.

[0121] In this embodiment, setting the axis of the second transmission wheel 932 to pass through the center of the tweeter 30 makes the rotation trajectory of the tweeter 30 more regular, moving only within the corresponding sphere diameter. This helps reduce the possibility of interference between the tweeter 30 and the mounting carrier 10 during rotation, and also facilitates a more compact arrangement of the tweeter 30 and the mounting carrier 10, reducing the overall size of the sound-generating device 100 and improving the convenience of subsequent installation in a limited space. Furthermore, setting the angle p formed by the axis of the second transmission wheel 932 and the vertical direction to 45° to 70° allows the tweeter 30, when rotated to extend from the opening of the mounting slot 171 and in an upright state, to have a larger portion of its high-frequency sound-producing surface extending beyond the opening of the mounting slot 171. It also allows for a better tilted working angle, enabling the tweeter 30 to perform better sound production. In other words, this enhances the performance of the tweeter 30, thereby further improving the user experience of the sound-generating device 100. The angle p formed by the axis of the second transmission wheel 932 and the vertical direction can be 45°, 50°, 55°, 60°, 65°, or 70°, or any value within the above range. Of course, in other embodiments, the angle p formed by the axis of the second transmission wheel 932 and the vertical direction can be set to less than 45° or greater than 70°.

[0122] Please refer to Figure 7 In one embodiment of this application, the angle formed by the line connecting the projection of the center of the first transmission wheel 931 and the projection of the center of the second transmission wheel 932 and the vertical direction is defined as m, satisfying the relationship: 30°≤m≤50°.

[0123] In this embodiment, the angle m formed by the line connecting the projection of the center of the first transmission wheel 931 and the projection of the center of the second transmission wheel 932, and the vertical direction, is set to 30° to 50°. This ensures that the line connecting the projections of the centers of the first transmission wheel 931 and the second transmission wheel 932 is inclined in the vertical plane. This reduces the space occupied by the transmission assembly 93 in both the vertical and horizontal directions, thus improving the compactness of the distribution between the transmission assembly 93 and the tweeter 30, thereby reducing the overall size of the sound-generating device 100. The angle m formed by the line connecting the projections of the centers of the first transmission wheel 931 and the second transmission wheel 932, and the vertical direction, can be 30°, 35°, 40°, 45°, or 50°, or any value within the above range. Of course, in other embodiments, the angle m formed by the line connecting the projection of the center of the first transmission wheel 931 and the projection of the center of the second transmission wheel 932 and the vertical direction can be less than 30° or greater than 50°.

[0124] Please refer to Figure 7 In one embodiment of this application, the first transmission wheel 931 and the second transmission wheel 932 are gears.

[0125] In this embodiment, the first transmission wheel 931 and the second transmission wheel 932 are configured as gears, and the gears have convex teeth, which helps to increase the driving force of the first transmission wheel 931 on the second transmission wheel 932, so that the transmission assembly 93 can effectively drive the tweeter 30 to rotate.

[0126] In one embodiment of this application, the transmission assembly 93 further includes a conveyor belt 933, the two ends of which are sleeved on the first transmission wheel 931 and the second transmission wheel 932.

[0127] In this embodiment, after the first transmission wheel 931 is driven to rotate by the driven member 91, it can drive the conveyor belt 933 to rotate. Simultaneously, the rotating conveyor belt 933 drives the second transmission wheel 932. At this time, there is no direct meshing relationship between the first transmission wheel 931 and the second transmission wheel 932, so the placement of the driven member 91 and the first transmission wheel 931 is not affected by the meshing between the first transmission wheel 931 and the second transmission wheel 932. This allows the distance between the driven member 91 and the first transmission wheel 931 and the second transmission wheel 932 to be adaptively set according to actual needs. That is, after designing the distance between the driven member 91 and the first transmission wheel 931 and the second transmission wheel 932, a conveyor belt 933 of corresponding length can be used, thereby improving the convenience of setting up the driven member 91 and the first transmission wheel 931. Furthermore, when both the first transmission wheel 931 and the second transmission wheel 932 are gears, in order to further improve the stability of the transmission, the conveyor belt 933 may be provided with meshing teeth that mesh with the first transmission wheel 931 and the second transmission wheel 932.

[0128] Please refer to Figure 7 In one embodiment of this application, the transmission assembly 93 further includes a mounting shaft 934, a worm gear 935, and a worm 936. The axis of the worm gear 935 coincides with the axis of the first transmission wheel 931. Both the worm gear 935 and the first transmission wheel 931 are mounted on the first mounting shaft 934. The worm 936 is connected to the driving member 91 and can be driven to rotate by the driving member 91. The worm 936 also meshes with the worm gear 935.

[0129] In this embodiment, the transmission assembly 93 further includes a mounting shaft 934, a worm gear 935, and a worm 936, so that the driving member 91 and the first transmission wheel 931 do not need to be sequentially distributed along the axial direction of the first transmission wheel 931. Instead, the axes of the driving member 91 and the first transmission wheel 931 can be arranged intersectingly. This further improves the compactness of the distribution between the driving member 91 and the transmission assembly 93, thereby reducing the overall size of the sound-generating device 100 and improving the convenience of its subsequent installation. Of course, in other embodiments, when the transmission assembly 93 does not include the mounting shaft 934, the worm gear 935, and the worm 936, the first transmission wheel 931 can also be directly mounted on the driving member 91.

[0130] Please refer to the reference. Figures 1 to 4 In one embodiment of this application, the mounting carrier 10 includes a bottom shell 13, a cover plate 15, and a cover 17. One end of the bottom shell 13 has an opening. The cover plate 15 covers the opening of the bottom shell 13 and is also provided with an installation port 155. The cover 17 is installed in the installation port 155. An installation groove 171 is formed inside the cover 17. The cover 17, the cover plate 15, and the bottom shell 13 enclose an installation cavity 11. A mid-range sound outlet 151 and a connecting hole 153 are provided on the cover plate 15.

[0131] In this embodiment, the mounting carrier 10 is configured to include a bottom shell 13, a cover plate 15, and a housing 17, so that each component can be manufactured independently and then assembled together to form the mounting carrier 10 as a whole. At this time, the structures of the disassembled bottom shell 13, cover plate 15, and housing 17 are relatively simple, thereby improving the ease of manufacturing the mounting carrier 10. The cover plate 15 is provided with the aforementioned midrange sound outlet 151 and connecting hole 153.

[0132] This application also proposes a vehicle, which includes a vehicle body and a sound-generating device 100. The specific structure of the sound-generating device 100 is as described in the above embodiments. Since this vehicle adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The sound-generating device 100 is disposed on the vehicle body.

[0133] In one embodiment of this application, the direction of the vehicle body forward is defined as the front-rear direction, the number of sound-emitting devices 100 is one, the sound-emitting device 100 is located in the middle of the front end of the vehicle body, and the high-frequency sound-emitting surface 31 of the high-frequency speaker 30 in the sound-emitting device 100 is arranged facing the rear and upward.

[0134] In this embodiment, setting the number of sound-emitting devices 100 to one reduces the number of devices used, thereby reducing manufacturing costs. Installing the sound-emitting device 100 in the middle of the front end of the vehicle body allows it to be used effectively by people on both the left and right sides of the vehicle. However, it should be noted that this application is not limited to this; in other embodiments, the number of sound-emitting devices 100 can be at least two. The vehicle body also has a left-right direction perpendicular to the front-rear direction, with the two sound-emitting devices 100 respectively located on the left and right sides of the front end of the vehicle body. The tweeter 30 of the left-side sound-emitting device 100 has its tweeter 30's tweeter surface 31 facing upward and to the right rear, while the tweeter 30 of the right-side sound-emitting device 100 has its tweeter surface 31 facing upward and to the left rear. In this case, increasing the number of sound-emitting devices 100 makes it more convenient for users on both the left and right sides of the vehicle to use them. Of course, it is also possible to further install a sound-emitting device 100 in the middle of the front end of the vehicle body.

[0135] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A sound-generating device, characterized in that, include: Installation carrier; A tweeter, wherein the tweeter is disposed on the mounting carrier and has a first state, the sound-emitting device is defined to have a vertical direction, and the tweeter's high-frequency sound-emitting surface in the first state is inclined upwards; and A midrange speaker is provided on the mounting carrier. The midrange sound-emitting surface of the midrange speaker is facing upwards. The center line of the midrange speaker passing through the midrange sound-emitting surface and the center line of the tweeter passing through the tweeter sound-emitting surface in the first state intersect in the space above the sound-emitting device. Define β as the angle formed by the center line of the tweeter's sound output surface and the vertical direction when the tweeter is in the first state, satisfying the relationship: 70°≤β<90°.

2. The sound-generating device as described in claim 1, characterized in that, The angle between the center line of the midrange speaker passing through the center of the midrange sound output surface and the center line of the tweeter in the first state passing through the center of the tweeter sound output surface is defined as α, satisfying the relationship: 60°≤α<90°.

3. The sound-generating device as described in claim 1, characterized in that, When the tweeter is in the first state, the center point of the tweeter sound-emitting surface is higher than the center point of the midrange sound-emitting surface, and a portion of the tweeter sound-emitting surface is lower than the midrange sound-emitting surface.

4. The sound-generating device as described in claim 3, characterized in that, When the tweeter is in the first state, the projected length of the distance between the center point of the tweeter sound outlet and the center point of the midrange sound outlet in the vertical direction is defined as L1, and the projected length of the tweeter sound outlet in the vertical direction is defined as L2, satisfying the relationship: 0.3≤L1 / L2≤0.

5.

5. The sound-generating device as described in claim 1, characterized in that, The number of tweeters and midrange speakers is one each. The sound-generating device is defined to also have a front-to-back direction perpendicular to the vertical direction. The tweeters and midrange speakers are arranged sequentially from front to back. On a horizontal projection plane, the line connecting the center point of the high-frequency sound-emitting surface and the center point of the mid-frequency sound-emitting surface is parallel to the front-back direction.

6. The sound-generating device according to any one of claims 1 to 5, characterized in that, The mounting carrier has a mounting cavity, the mid-range speaker is located in the mounting cavity, and the tweeter is located on the outer side of the top wall of the mounting cavity; The mounting cavity forms the front and rear sound chambers of the midrange speaker, and the front and rear sound chambers are isolated from each other; The top wall of the mounting cavity is provided with a mid-range sound outlet and a connecting hole. The mid-range sound outlet is connected to the front sound cavity, and the connecting hole is connected to the rear sound cavity.

7. The sound-generating device as described in claim 6, characterized in that, The midrange speaker and the top wall of the mounting cavity are spaced apart. The sound-generating device also includes a sealing element, which is disposed between the top wall of the mounting cavity and the midrange speaker, and surrounds the midrange sound-emitting surface. The top wall of the mounting cavity, the sealing element, and the midrange speaker enclose the front sound cavity, and the space in the mounting cavity other than the front sound cavity forms the rear sound cavity.

8. The sound-generating device as claimed in claim 7, characterized in that, The sealing element is made of foam; And / or, the distance between the midrange speaker and the top wall of the mounting cavity is defined as d, satisfying the relationship: 5 mm ≤ d ≤ 15 mm.

9. The sound-generating device as described in claim 6, characterized in that, The sound-generating device is defined to also have a front-back direction and a left-right direction perpendicular to the vertical direction. The tweeter and the mid-range speaker are arranged sequentially from front to back. There are multiple mid-range sound outlets and multiple connecting holes, which are combined in the front-back direction to form multiple rows of hole groups and in the left-right direction to form multiple columns of hole groups. The connecting lines formed by the multiple mid-range sound outlets and multiple connecting holes in each row of hole groups and each column of hole groups are arranged in a wavy pattern. And / or, the area of ​​the mid-range sound outlet is greater than the area of ​​the connecting hole.

10. The sound-generating device as claimed in claim 6, characterized in that, The area on the top wall of the mounting cavity, excluding the area where the tweeter is installed, has an outwardly convex curved surface structure.

11. The sound-generating device as claimed in claim 10, characterized in that, The angle formed by the center line of the midrange speaker through the midrange sound output surface and the vertical direction is defined as γ, satisfying the relationship: 0°<γ≤10°.

12. The sound-generating device as claimed in claim 6, characterized in that, The top wall of the mounting cavity is partially recessed towards the inside of the mounting cavity to form a mounting groove, and the tweeter is disposed in the mounting groove.

13. The sound-generating device as claimed in claim 12, characterized in that, The tweeter is rotatably disposed in the mounting groove, and the tweeter is in the first state when it is rotated out of the opening of the mounting groove; When the tweeter is rotated back from the opening of the mounting slot, it forms a second state. In the second state, the center line of the tweeter passing through the tweeter's sound output surface is parallel to the vertical direction.

14. The sound-generating device as claimed in claim 13, characterized in that, In the second state, one end of the tweeter with the tweeter sound-emitting surface protrudes from the opening of the mounting groove.

15. The sound-generating device as claimed in claim 14, characterized in that, In the vertical direction, the height of the tweeter is defined as H, and the height of the tweeter protruding from the opening of the mounting groove is defined as h, satisfying the relationship: 0 < h / H ≤ 0.

5.

16. The sound-generating device as claimed in claim 13, characterized in that, The tweeter also has a rear back surface, which is connected to the tweeter sound output surface. The rear back surface is convex spherical and has a center. The rotation axis of the tweeter passes through the center of the sphere. The mounting groove has a spherical wall, the center of which coincides with the center of the rear back surface.

17. The sound-generating device as claimed in claim 16, characterized in that, The groove wall of the mounting groove also includes an inclined wall surface, which is connected to the spherical wall surface; The inclined wall surface away from the spherical wall surface forms the opening of the mounting groove, and the inclined wall surface is flared in the direction from bottom to top.

18. The sound-generating device as claimed in claim 13, characterized in that, The tweeter is provided with a connecting shaft, which passes through the wall of the mounting groove and extends into the rear sound cavity of the mounting cavity; The sound-generating device further includes a drive mechanism located within the rear acoustic cavity and connected to the connecting shaft extending into the rear acoustic cavity to drive the tweeter to rotate.

19. The sound-generating device as claimed in claim 18, characterized in that, The driving mechanism includes a driving component and a transmission assembly, the transmission assembly including a first transmission wheel and a second transmission wheel; The first transmission wheel is connected to the driving member and can be driven to rotate by the driving member; The second transmission wheel is connected to the connecting shaft that extends into the mounting cavity. The axis of the second transmission wheel and the axis of the first transmission wheel are arranged side by side. The second transmission wheel can be driven to rotate by the first transmission wheel.

20. The sound-generating device as claimed in claim 19, characterized in that, The axis of the second transmission wheel is inclined downwards.

21. The sound-generating device as claimed in claim 20, characterized in that, The tweeter has a sphere, and the axis of the second drive wheel passes through the sphere of the tweeter. On a vertical section passing through the axis of the second drive wheel, the angle formed by the axis of the second drive wheel and the up-down direction is defined as p, which satisfies the relationship: 45°≤p≤70°. And / or, on a vertical projection plane, the angle formed by the line connecting the projection of the center of the first transmission wheel and the projection of the center of the second transmission wheel and the vertical direction is defined as m, satisfying the relationship: 30°≤m≤50°.

22. The sound-generating device as claimed in claim 19, characterized in that, The first transmission wheel and the second transmission wheel are gears; And / or, the transmission assembly further includes a conveyor belt, the two ends of which are sleeved on the first transmission wheel and the second transmission wheel; And / or, the transmission assembly further includes a mounting shaft, a worm gear, and a worm, wherein the axis of the worm gear coincides with the axis of the first transmission wheel, and both the worm gear and the first transmission wheel are mounted on the first mounting shaft; the worm is connected to the driving member and can be driven to rotate by the driving member, and the worm also meshes with the worm gear.

23. The sound-generating device as claimed in claim 12, characterized in that, The mounting carrier includes: A bottom shell, one end of which has an opening; A cover plate that closes to the opening of the bottom shell, the cover plate also having an mounting opening; and The cover is installed at the mounting port, and the mounting groove is formed inside the cover. The cover, the cover plate, and the bottom shell surround the mounting cavity. The midrange sound outlet and the connecting hole are located on the cover plate.

24. A vehicle, characterized in that, include: Vehicle body; and A sound-generating device, wherein the sound-generating device is as described in any one of claims 1 to 23, and the sound-generating device is disposed on the vehicle body.

25. The vehicle as claimed in claim 24, characterized in that, The direction of the vehicle body's forward movement is defined as the front-rear direction. The number of the sound-generating devices is one. The sound-generating device is located in the middle of the front end of the vehicle body. The high-frequency sound-emitting surface of the high-frequency horn in the sound-generating device is arranged facing the rear and upward. Alternatively, the vehicle body may also have a left-right direction perpendicular to the front-rear direction, and the number of sound-generating devices is at least two, with the two sound-generating devices respectively located on the left and right sides of the front end of the vehicle body. The high-frequency sound-emitting surface of the tweeter in the left-side sound-generating device is arranged facing the upper right rear, and the high-frequency sound-emitting surface of the tweeter in the right-side sound-generating device is arranged facing the upper left rear.

Images