Sound device

Abstract

The present invention discloses a sound-generating device, which relates to the technical field of sound boxes. The sound-generating device includes a shell, a lattice structure and a sound-generating device. The shell is provided with a mounting cavity and a sound outlet connected to the mounting cavity. The lattice structure is provided in the mounting cavity. The lattice structure is provided with a receiving groove corresponding to the sound outlet. The lattice structure is a porous structure formed by connecting a plurality of ribs. The sound-generating device is provided in the receiving groove and corresponds to the sound outlet. The volume of the mounting cavity is defined as V1, and the volume occupied by the plurality of ribs in the lattice structure is defined as V2, V2 = (0.5% to 30%) V1. The present invention aims to provide a sound-generating device that effectively improves the resonance phenomenon. The sound-generating device not only increases the acoustic volume in the shell, but also does not block the transmission of sound waves in the shell, and at the same time improves the resonance phenomenon of the shell, thereby effectively improving the acoustic performance and sound quality of the sound-generating device.

Description

Technical Field

[0001] The present invention relates to the technical field of sound boxes, and in particular to a sound-generating device. Background Art

[0002] With the development of science and technology and the improvement of living standards, consumers are pursuing higher and higher quality of speaker products. They not only want to listen to music through speakers, but also want to listen to pure and real sounds through speakers. When the speaker of a speaker is working, the diaphragm of the speaker will generate compressed air inside the speaker box. This compressed air will force the diaphragm to vibrate in the opposite direction. When playing low-frequency music, the vibration amplitude of the diaphragm of the speaker is too large, which can easily cause the speaker box to resonate, thus causing noise or murmurs and other problems.

[0003] In the related art, the resonance phenomenon and the resonance frequency are usually reduced by increasing the thickness of the speaker box or adding a reinforcement plate. However, increasing the thickness of the box not only makes the product bulky and increases the cost, but also greatly reduces the acoustic volume, thereby affecting the sound quality performance; and adding a reinforcement plate in the box will make the reinforcement plate unfavorable for the transmission of sound waves in the box, thereby affecting the sound quality performance. Summary of the invention

[0004] The main purpose of the present invention is to provide a sound-emitting device, aiming to provide a sound-emitting device that effectively improves the resonance phenomenon. The sound-emitting device not only increases the acoustic volume inside the shell, but also does not block the transmission of sound waves inside the shell, while improving the resonance phenomenon of the shell, effectively improving the acoustic performance and sound quality of the sound-emitting device.

[0005] To achieve the above object, the present invention provides a sound-generating device, comprising:

[0006] A housing, wherein the housing is provided with a mounting cavity and a sound outlet communicating with the mounting cavity;

[0007] A lattice structure, wherein the lattice structure is arranged in the installation cavity, the lattice structure is provided with a receiving groove corresponding to the sound outlet, and the lattice structure is a porous structure formed by connecting a plurality of ribs; and

[0008] A sound-generating device, the sound-generating device is arranged in the containing groove and corresponds to the sound outlet;

[0009] The volume of the installation cavity is defined as V1, and the volume occupied by the plurality of ribs in the lattice structure is defined as V2, where V2 = (0.5% to 30%) V1.

[0010] In one embodiment, the lattice structure is filled between the housing and the sound-generating device;

[0011] And / or, the lattice structure and the shell are an integrally formed structure;

[0012] And / or, the cross-sectional shape of the rib is at least one of circular, elliptical, and polygonal;

[0013] And / or, the lattice structure has a plurality of through holes, and the shape of the through holes is at least one of circular, elliptical, and polygonal;

[0014] And / or, the rib is at least one of a straight line segment, an arc segment, a curve segment, and a circular ring shape.

[0015] In one embodiment, the rib is cylindrical, and the diameter of the rib is defined as d, where d=0.2 mm to 20 mm.

[0016] In one embodiment, the plurality of ribs are evenly distributed in the mounting cavity so that the density of the lattice structure between the housing and the sound-generating device is the same;

[0017] Alternatively, the plurality of ribs are unevenly distributed in the mounting cavity, so that the density of the lattice structure between the housing and the sound-generating device is different.

[0018] In one embodiment, the lattice structure includes a first lattice unit, a second lattice unit and a third lattice unit, the first lattice unit is connected to the inner wall of the shell, the third lattice unit forms the accommodating groove corresponding to the sound outlet, and the second lattice unit is located between the first lattice unit and the third lattice unit and connected to the first lattice unit and the third lattice unit;

[0019] Among them, the first lattice unit includes a plurality of first ribs, the second lattice unit includes a plurality of second ribs, and the third lattice unit includes a plurality of third ribs, and the distribution density of the plurality of second ribs in the second lattice unit is less than the distribution density of the plurality of first ribs in the first lattice unit.

[0020] In one embodiment, the distribution density of the plurality of second ribs in the second lattice unit is less than the distribution density of the plurality of third ribs in the third lattice unit;

[0021] And / or, the distribution density of the first ribs in the first lattice unit is the same as the distribution density of the third ribs in the third lattice unit; or, the distribution density of the first ribs in the first lattice unit is different from the distribution density of the third ribs in the third lattice unit;

[0022] And / or, the first lattice unit, the second lattice unit and the third lattice unit are an integrally formed structure;

[0023] And / or, the cross-sectional shape of the first rib, the cross-sectional shape of the second rib and the cross-sectional shape of the third rib are at least one of circular, elliptical and polygonal; or, the first rib is cylindrical, and the diameter of the first rib is defined as d1, d1=0.2mm~20mm; the second rib is cylindrical, and the diameter of the second rib is defined as d2, d2=0.2mm~20mm; the third rib is cylindrical, and the diameter of the third rib is defined as d3, d3=0.2mm~20mm.

[0024] In one embodiment, the housing has a first direction, a second direction and a third direction, and the first direction, the second direction and the third direction are perpendicular to each other;

[0025] A plurality of the first ribs are arranged at intervals along the first direction, the second direction and the third direction respectively to form the first lattice unit;

[0026] A plurality of the second ribs are arranged at intervals along the first direction, the second direction and the third direction to form the second lattice unit.

[0027] In one embodiment, the spacing between two adjacent first ribs along the first direction, the spacing between two adjacent first ribs along the second direction, and the spacing between two adjacent first ribs along the third direction are all the same, and the spacing between two adjacent first ribs along the first direction is defined as L1;

[0028] The spacing between two adjacent second ribs along the first direction, the spacing between two adjacent second ribs along the second direction, and the spacing between two adjacent second ribs along the third direction are all the same, and the spacing between two adjacent second ribs along the first direction is defined as L2;

[0029] Among them, L2>L1; and / or, L1=2mm~100mm, L2mm=5mm~1000mm.

[0030] In one embodiment, the plurality of third ribs include a plurality of first sub-ribs, a plurality of second sub-ribs, a plurality of third sub-ribs and a plurality of fourth sub-ribs. The plurality of first sub-ribs enclose a first circular cylinder corresponding to the sound outlet and are connected to the second lattice unit. The plurality of second sub-ribs enclose a second circular cylinder corresponding to the sound outlet. The second circular cylinder is arranged in the first circular cylinder and is spaced from the cylinder wall of the first circular cylinder to form a gap. The plurality of third sub-ribs are arranged in the gap and are connected to the first circular cylinder and the second circular cylinder. The plurality of fourth sub-ribs are arranged in the second circular cylinder and are spaced along the circumferential direction of the second circular cylinder to cooperate to form a flaring groove. The flaring groove and the second circular cylinder enclose a receiving groove connected to the sound outlet.

[0031] In one embodiment, the inner wall of the shell is provided with a plurality of reinforcing ribs; the plurality of ribs are connected to the plurality of reinforcing ribs and / or the inner wall of the shell;

[0032] And / or, the housing comprises a bottom shell and a cover plate, the bottom shell is provided with a mounting groove, the cover plate covers the notch of the mounting groove and encloses the bottom shell to form the mounting cavity, and the cover plate is provided with the sound outlet;

[0033] And / or, the material of the ribs is at least one of carbon fiber reinforced composite materials, nylon materials, resin materials, and metal materials;

[0034] And / or, the sound-emitting device is a speaker.

[0035] The sound-emitting device of the technical solution of the present invention is provided with an installation cavity and a sound outlet connected to the installation cavity in a shell, so that the installation cavity of the shell is used to install and protect the sound-emitting device, and the sound emitted by the sound-emitting device is smoothly transmitted to the outside world by using the sound outlet; at the same time, a lattice structure is provided in the installation cavity, so that the lattice structure is provided with a receiving groove corresponding to the sound outlet, the sound-emitting device is arranged in the receiving groove and corresponds to the sound outlet, and the lattice structure is provided as a porous structure formed by connecting a plurality of ribs, so that the structure of the shell can be strengthened by utilizing the plurality of ribs of the lattice structure, so that the resonance phenomenon of the shell is effectively improved through the lattice structure when the sound-emitting device is working, and the porous structure formed by the plurality of ribs of the lattice structure facilitates the transmission of sound waves of the sound-emitting device in the installation cavity, and the volume V2 occupied by the plurality of ribs in the lattice structure is set to 0.5% to 30% of the volume V1 of the installation cavity, thereby ensuring the acoustic volume of the sound-emitting device in the shell, thereby effectively improving the acoustic performance and sound quality of the sound-emitting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0037] Figure 1 A schematic structural diagram of an embodiment of a sound-generating device provided by the present invention;

[0038] Figure 2 A cross-sectional schematic diagram of an embodiment of a sound-generating device provided by the present invention;

[0039] Figure 3 An exploded schematic diagram of an embodiment of a sound-generating device provided by the present invention;

[0040] Figure 4 A schematic structural diagram of an embodiment of a sound-generating device provided by the present invention without a sound-generating device;

[0041] Figure 5 A schematic structural diagram of the connection between the bottom shell and the lattice structure in an embodiment of the sound-generating device provided by the present invention;

[0042] Figure 6 A cross-sectional schematic diagram of the connection between the bottom shell and the lattice structure in an embodiment of the sound-generating device provided by the present invention;

[0043] Figure 7 for Figure 6 The enlarged schematic diagram of point A in the middle;

[0044] Figure 8 This is a schematic structural diagram of an embodiment of a bottom shell provided by the present invention.

[0045] Description of Figure Numbers:

[0046] 100. Sound-generating device; 1. Shell; 11. Mounting cavity; 12. Bottom shell; 121. Mounting groove; 122. Reinforcing rib; 13. Cover plate; 131. Sound outlet; 2. Lattice structure; 21. First lattice unit; 211. First rib; 22. Second lattice unit; 221. Second rib; 23. Third lattice unit; 231. Third rib; 2311. First sub-rib; 2312. First circular cylinder; 2313. Second sub-rib; 2314. Second circular cylinder; 2315. Gap; 2316. Third sub-rib; 2317. Fourth sub-rib; 2318. Expanding groove; 232. Accommodating groove; 24. Rib; 25. Through hole; 3. Sound-generating device.

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0050] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0051] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their 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 at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0052] With the development of science and technology and the improvement of living standards, consumers are pursuing higher and higher quality of speaker products. They not only want to listen to music through speakers, but also want to listen to pure and real sounds through speakers. When the speaker of a speaker is working, the diaphragm of the speaker will generate compressed air inside the speaker box. This compressed air will force the diaphragm to vibrate in the opposite direction. When playing low-frequency music, the vibration amplitude of the diaphragm of the speaker is too large, which can easily cause the speaker box to resonate, thus causing noise or murmurs and other problems.

[0053] In the related art, the resonance phenomenon is usually reduced by thickening the box body of the speaker (that is, increasing the wall thickness of the box body) or adding reinforcement plates, thereby reducing the resonance frequency and improving the quality of the speaker. However, thickening the box body not only makes the product bulky and increases the cost, but also greatly reduces the acoustic volume, thereby affecting the sound quality performance; and adding reinforcement plates in the box body can reduce the resonance phenomenon and increase the weight of the box body to a small extent. However, in actual products, the reinforcement plates in the box are not conducive to the transmission of sound waves in the box body, thereby affecting the sound quality performance, and the effect of improving the resonance is limited.

[0054] Based on the above concepts and problems, the present invention proposes a sound-generating device 100. It is understandable that the sound-generating device 100 can be a sound-generating device or electronic product such as a speaker. Optionally, the sound-generating device 100 is a speaker. The sound-generating device 100 in this embodiment increases the strength of the shell 1 by adding lattice structures 2 of various forms inside the shell 1, thereby reducing the resonance and resonance of the shell 1 and effectively reducing the weight of the sound-generating device 100. At the same time, the porous structure of the lattice structure 2 is used to ensure the sound wave transmission and acoustic volume of the sound-generating device 3 in the installation cavity 11, thereby effectively improving the acoustic performance and sound quality of the sound-generating device 100.

[0055] Please refer to Figures 1 to 8 As shown, in an embodiment of the present invention, the sound-generating device 100 includes a shell 1, a lattice structure 2 and a sound-generating device 3. The shell 1 is provided with a mounting cavity 11 and a sound outlet 131 connected to the mounting cavity 11. The lattice structure 2 is arranged in the mounting cavity 11. The lattice structure 2 is provided with a receiving groove 232 corresponding to the sound outlet 131. The lattice structure 2 is a porous structure formed by connecting a plurality of ribs 24. The sound-generating device 3 is arranged in the receiving groove 232 and corresponds to the sound outlet 131. The volume of the mounting cavity 11 is defined as V1, and the volume occupied by the plurality of ribs 24 in the lattice structure 2 is defined as V2, and V2 = (0.5% to 30%) V1.

[0056] In this embodiment, the housing 1 of the sound-generating device 100 is used to install, fix, support and protect the lattice structure 2 and the sound-generating device 3 and other components, that is, the housing 1 provides a mounting base for the lattice structure 2 and the sound-generating device 3 and other components. It can be understood that the housing 1 can be a structure such as an appearance shell, a box body, a box body, etc. of the sound-generating device 100, and the housing 1 has a mounting cavity 11 for installing and accommodating components. Optionally, the housing 1 can be made of plastic material or metal material, etc., which is not limited here.

[0057] It can be understood that the sound-generating device 100 can be selected as a sound box, the housing 1 is the housing structure of the sound box, and the sound-generating device 3 can be a structure or device for sound generation such as a horn or a loudspeaker. In order to facilitate the installation of the sound-generating device 3 and ensure the smooth sound generation of the sound-generating device 3, a mounting cavity 11 and a sound outlet 131 connected to the mounting cavity 11 are provided in the housing 1, so that the mounting cavity 11 of the housing 1 can be used to accommodate and install the sound-generating device 3, so that the diaphragm and other structures of the sound-generating device 3 correspond to the sound outlet 131, so that when the sound-generating device 100 is working, the sound generated by the vibration of the diaphragm of the sound-generating device 3 can be smoothly transmitted to the outside through the sound outlet 131.

[0058] It should be noted that when the sound device 3 of the sound device 100 is working, especially when the sound device 100 plays low-frequency music, since the vibration amplitude of the diaphragm of the sound device 3 is too large, it is easy to cause resonance in the shell 1, and the compressed air generated inside the shell 1 will also produce an impact force on the shell 1, causing the shell 1 to deform. The size of the deformation is usually represented by the size of the displacement value.

[0059] In this embodiment, by setting a lattice structure 2 in the installation cavity 11 of the housing 1, the various surfaces of the housing 1 are effectively connected by using a plurality of ribs 24 of the lattice structure 2, so as to restrict the deformation of the housing 1 when it is subjected to impact force, so that the resonant displacement of the housing 1 is reduced by 5% to 80%. At the same time, a receiving groove 232 is provided in the lattice structure 2 corresponding to the sound outlet 131, so that the sound-generating device 3 is arranged in the receiving groove 232 and corresponds to the sound outlet 131. Not only is the receiving groove 232 of the lattice structure 2 used to further install, fix and support the sound-generating device 3, but the lattice structure 2 is also used to effectively strengthen the structural strength of the housing 1. In this way, when the sound-generating device 100 is working, the resonance and resonance of the housing 1 caused by the vibration of the diaphragm of the sound-generating device 3 are effectively reduced.

[0060] Optionally, the lattice structure 2 is filled between the housing 1 and the sound device 3. Such a configuration not only effectively strengthens the structural strength of the housing 1, but also strengthens the connection strength between the sound device 3 and the housing 1 through the lattice structure 2, thereby utilizing the multiple ribs 24 of the lattice structure 2 to restrict the deformation of the housing 1 when it is subjected to impact force, and effectively reducing the resonance and resonance phenomenon of the housing 1 caused by the vibration of the diaphragm of the sound device 3.

[0061] It can be understood that by making the lattice structure 2 a porous structure formed by connecting a plurality of ribs 24, that is, the lattice structure 2 is composed of a plurality of ribs 24 in multiple directions, the appearance is relatively smooth, and the area occupied by the ribs 24 in any cross section is relatively small, which has less obstruction to the airflow inside the shell 1. At the same time, the total volume of all the ribs 24 in the lattice structure 2 is relatively small, and the occupation of the acoustic volume in the shell 1 is relatively small, which can leave a larger acoustic volume in the shell 1, thereby obtaining better sound effects and delivering pure and real sound.

[0062] In this embodiment, the lattice structure 2 and the shell 1 can be an integrally formed structure. This can further improve the connection strength between the shell 1 and the lattice structure 2. It is understandable that the lattice structure 2 and the shell 1 can be set as an integrally formed structure by 3D printing, or other molding methods, which are not limited here.

[0063] Of course, in other embodiments, the lattice structure 2 and the shell 1 may also be configured as separate structures, that is, the lattice structure 2 and the shell 1 are formed separately and then assembled together, which is not limited here.

[0064] Optionally, the cross-sectional shape of the ribs 24 of the lattice structure 2 is at least one of a circle, an ellipse, and a polygon. It is understandable that the cross-sectional shapes of the multiple ribs 24 of the lattice structure 2 are the same; or, the cross-sectional shapes of the multiple ribs 24 of the lattice structure 2 are different; or, among the cross-sectional shapes of the multiple ribs 24 of the lattice structure 2, at least some of the ribs 24 are the same, which is not limited here.

[0065] In this embodiment, the volume of the installation cavity 11 of the shell 1 is defined as V1, and the volume occupied by the multiple ribs 24 in the lattice structure 2 is defined as V2, that is, the volume V2 occupied by the multiple ribs 24 does not include the volume of the holes formed by the multiple ribs 24 in the lattice structure 2, but only the volume actually occupied by all the ribs 24 in the lattice structure 2.

[0066] Optionally, V2 = (0.5% to 30%) V1. It can be understood that by setting the volume V2 occupied by the multiple ribs 24 in the lattice structure 2 to 0.5% to 30% of the volume V1 of the installation cavity 11, it is ensured that the area occupied by the multiple ribs 24 in the lattice structure 2 in any cross section is small, and the airflow obstruction inside the shell 1 is small; at the same time, the total volume of the multiple ribs 24 in the lattice structure 2 is small, and the occupation of the acoustic volume in the shell 1 is small, which can leave a larger acoustic volume in the shell 1, and obtain better sound effects, and deliver pure and real sound. In this embodiment, the volume V2 occupied by the multiple ribs 24 in the lattice structure 2 can be selected as 0.5%, 1%, 5%, 10%, 1.5%, 20%, 25%, 30%, etc. of the volume V1 of the installation cavity 11, which is not limited here.

[0067] It can be understood that the lattice structure 2 has a plurality of through holes 25, that is, the lattice structure 2 is a porous structure formed by connecting a plurality of ribs 24. The plurality of through holes 25 of the lattice structure 2 can ensure smooth airflow inside the shell 1. At the same time, the plurality of through holes 25 can ensure a larger acoustic volume inside the shell 1, thereby effectively improving the acoustic performance and sound quality of the sound-generating device.

[0068] In this embodiment, the ribs 24 of the lattice structure 2 are interconnected in the plane space to form a through hole 25, and the ribs 24 of the lattice structure 2 are interconnected in the three-dimensional space to form a plurality of hollow cavity structures, and each plane of the hollow cavity structure has ribs 24 interconnected in the plane space to form a through hole 25. Optionally, the shape of the through hole 25 of the lattice structure 2 is at least one of a circle, an ellipse, and a polygon. In this way, the structure of the hollow cavity structure formed by the lattice structure 2 in the three-dimensional space can be spherical, ellipsoidal, variable three-dimensional or special-shaped, etc., which is not limited here.

[0069] Optionally, the ribs 24 of the lattice structure 2 may be selected as at least one of a straight line segment, an arc segment, a curve segment, and a circular ring. It is understandable that as long as the ribs 24 of the lattice structure 2 can strengthen the structure of the housing 1, restrict the deformation of the housing 1 when it is subjected to impact force, and effectively reduce the resonance and resonance of the housing 1 caused by the vibration of the diaphragm of the sound-generating device 3, the specific shape and contour are not limited, and are designed according to actual needs, and are not limited here.

[0070] The sound-generating device 100 of the present invention is provided with a mounting cavity 11 and a sound outlet 131 connected to the mounting cavity in the housing 1, so that the mounting cavity 11 of the housing 1 is used to mount and protect the sound-generating device 3, and the sound outlet 131 is used to smoothly transmit the sound emitted by the sound-generating device 3 to the outside world; at the same time, by providing a lattice structure 2 in the mounting cavity 11, the lattice structure 2 is provided with a receiving groove 232 corresponding to the sound outlet 131, so that the receiving groove 232 of the lattice structure 2 is convenient for accommodating and installing the sound-generating device 3, and the lattice structure 2 is provided as a plurality of ribs 24 connected to form a plurality of ribs 24. The hole structure can utilize the multiple ribs 24 of the lattice structure 2 to strengthen the structure of the shell 1, so that the resonance phenomenon of the shell 1 can be effectively improved through the lattice structure 2 when the sound-emitting device 3 is working, and the porous structure formed by the multiple ribs 24 of the lattice structure 2 facilitates the sound wave transmission of the sound-emitting device 3 in the installation cavity 11, and the volume V2 occupied by the multiple ribs 24 in the lattice structure 2 is set to 0.5% to 30% of the volume V1 of the installation cavity 11, thereby ensuring the acoustic volume of the sound-emitting device 3 in the shell 1, which can effectively improve the acoustic performance and sound quality of the sound-emitting device 100.

[0071] It should be noted that, in the reinforcement application of the shell 1, the ideal state of the reinforcement structure (that is, the lattice structure 2) is high strength but small internal volume of the shell 1; the density of the ribs 24 in the lattice structure 2 and the size of a single rib 24 are not only related to the strength of the lattice structure 2, but also to the volume of the lattice structure 2, that is, the larger the size of the rib 24 and the denser the ribs 24, the greater the strength and the larger the volume.

[0072] In one embodiment, if Figures 2 to 7As shown, the rib 24 may be cylindrical. It is understandable that the diameter of the rib 24 is defined as d, and optionally, d=0.2 mm to 20 mm. In this embodiment, by setting the diameter d of the rib 24 to be within the range of 0.2 mm to 20 mm, the lattice structure 2 can meet the requirements of strengthening the shell 1 while meeting the requirements of sound wave transmission and acoustic volume inside the shell 1.

[0073] Optionally, the diameter d of the rib 24 is 0.2 mm, 0.5 mm, 0.8 mm, 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, etc., which is not limited here.

[0074] In one embodiment, the material of the ribs 24 of the lattice structure 2 may be selected from at least one of carbon fiber reinforced composite materials, nylon materials, resin materials, and metal materials. It is understandable that the ribs 24 of the lattice structure 2 can be replaced with a material with higher strength to reduce the diameter, number, spacing between the ribs 24, and other dimensions of the lattice structure 2. While ensuring that the degree of reinforcement of the shell 1 remains unchanged, the volume occupied by the ribs 24 of the lattice structure 2 becomes smaller, which is more conducive to the transmission of sound waves inside the shell 1.

[0075] In this embodiment, the material of the ribs 24 is, for example, CF-PEEK material (carbon fiber reinforced polyetheretherketone composite material), metal material, nylon material, resin material, etc., or continuous carbon fiber material is added to the structure of the ribs 24. The overall shape of the lattice structure 2 and the shape of each rib 24 in the lattice structure 2 can also be changed to meet different application requirements of the shell 1, and the size of the lattice structure 2 can be flexibly adjusted according to the size of the shell 1, and the application scenario is relatively wide.

[0076] In one embodiment, a plurality of ribs 24 are evenly distributed in the mounting cavity 11, so that the density of the lattice structure 2 between the housing 1 and the sound-generating device 3 is the same. It can be understood that such a configuration makes the density of the lattice structure 2 in the mounting cavity 11 of the housing 1 uniform, that is, the ribs 24 of the lattice structure 2 between the housing 1 and the sound-generating device 3 are evenly distributed, that is, the distance between adjacent ribs 24 in any plane is the same, or the distance between the intersection of any two ribs 24 in the lattice structure 2 and the adjacent intersection is the same.

[0077] In one embodiment, if Figures 2 to 7As shown, a plurality of ribs 24 are unevenly distributed in the mounting cavity 11, so that the density of the lattice structure 2 between the housing 1 and the sound-generating device 3 is different. It can be understood that such a configuration makes the density of the lattice structure 2 in the mounting cavity 11 of the housing 1 uneven, that is, the ribs 24 of the lattice structure 2 between the housing 1 and the sound-generating device 3 are not evenly distributed, that is, the distances between at least some of the adjacent ribs 24 in any plane are not the same, or the distances between the intersections of any two ribs 24 in the lattice structure 2 and the adjacent intersections are not the same.

[0078] It can be understood that by setting the density of the lattice structure 2 to be uneven, the weight of the lattice structure 2 can be reduced, thereby achieving weight reduction of the sound-generating device 100, and the transmission of sound waves in the shell 1 can be ensured, effectively improving the sound quality.

[0079] In order to further enhance the structural strength of the housing 1, in one embodiment, Figures 2 to 8 As shown, the inner wall of the housing 1 is provided with a plurality of reinforcing ribs 122. It is understandable that the reinforcing ribs 122 can be structures such as protrusions, convex points, convex strips, etc., which are provided on the inner wall of the housing 1, and are not limited here.

[0080] Optionally, a plurality of reinforcing ribs 122 are arranged on the inner wall of the housing 1 in a crisscross pattern. In this embodiment, the plurality of reinforcing ribs 122 are formed on the inner wall of the housing 1 in a circular, elliptical, polygonal or irregular shape, such as a "well" shape. Figure 8 As shown, no limitation is given here.

[0081] It can be understood that the shape of the housing 1 can be spherical, ellipsoidal, polyhedral or irregular, etc., and can be specifically configured according to actual needs, which is not limited here.

[0082] In one embodiment, the housing 1 may be a hexahedron, in which case the housing 1 has a first direction, a second direction, and a third direction, and the first direction, the second direction, and the third direction are perpendicular to each other. Figure 1 and Figure 8 As shown, the housing 1 has six surfaces, including a top wall, a bottom wall and four side walls. Optionally, the reinforcing ribs 122 on each of the six inner walls of the housing 1 extend in at least two directions and are staggered, so that two adjacent reinforcing ribs 122 extending in a first direction and two adjacent reinforcing ribs 122 extending in a second direction are staggered to form a "well"-shaped structure, which is not limited here.

[0083] In one embodiment, the plurality of ribs 24 of the lattice structure 2 are connected to the plurality of reinforcing ribs 122 and / or the inner wall of the outer shell 1. In this embodiment, the ends of the plurality of ribs 24 of the lattice structure 2 adjacent to the outer shell 1 are all connected to the plurality of reinforcing ribs 122; or, the ends of the plurality of ribs 24 of the lattice structure 2 adjacent to the outer shell 1 are all connected to the inner wall of the outer shell 1, in which case the plurality of reinforcing ribs 122 are spaced between the ribs 24; or, the middle portions of the ends of the plurality of ribs 24 of the lattice structure 2 adjacent to the outer shell 1 are all connected to the plurality of reinforcing ribs 122, and the remaining portions are all connected to the inner wall of the outer shell 1, which is not limited here.

[0084] In one embodiment, the housing 1 includes a bottom shell 12 and a cover plate 13 . The bottom shell 12 is provided with a mounting groove 121 . The cover plate 13 covers the notch of the mounting groove 121 and forms a mounting cavity 11 together with the bottom shell 12 . The cover plate 13 is provided with a sound outlet 131 .

[0085] In this embodiment, if Figures 1 to 8 As shown, by setting the housing 1 as a two-part structure of a bottom shell 12 and a cover plate 13, it is convenient to install and fix the lattice structure 2 and the sound-generating device 3. It can be understood that the bottom shell 12 and the cover plate 13 are detachably connected by snap connection, plug-in fit, screw connection, pin connection, etc. Of course, in order to improve the connection strength and sealing performance, the bottom shell 12 and the cover plate 13 are fixedly connected by bonding, welding, etc., which is not limited here.

[0086] It can be understood that the bottom shell 12 of the housing 1 is provided with a mounting groove 121, and the cover plate 13 covers the notch of the mounting groove 121 and encloses the bottom shell 12 to form the mounting cavity 11. Optionally, the cover plate 13 is provided with a sound outlet 131. In this embodiment, the housing 1 is a hexahedral structure, and the inner wall of the bottom shell 12 of the housing 1 is provided with a reinforcing rib 122, and the cover plate 13 may not be provided with the reinforcing rib 122, so that the sound device 3 is installed at the sound outlet 131, and the sound performance of the sound device 3 is ensured.

[0087] In one embodiment, the lattice structure 2 includes a first lattice unit 21, a second lattice unit 22 and a third lattice unit 23, the first lattice unit 21 is connected to the inner wall of the outer shell 1, the third lattice unit 23 forms a receiving groove 232 corresponding to the sound outlet 131, and the second lattice unit 22 is located between the first lattice unit 21 and the third lattice unit 23, and is connected to the first lattice unit 21 and the third lattice unit 23; wherein the first lattice unit 21 includes a plurality of first ribs 211, the second lattice unit 22 includes a plurality of second ribs 221, and the third lattice unit 23 includes a plurality of third ribs 231, and the distribution density of the plurality of second ribs 221 in the second lattice unit 22 is less than the distribution density of the plurality of first ribs 211 in the first lattice unit 21.

[0088] In this embodiment, if Figure 2 , Figure 3 , Figures 5 to 7 As shown, by setting the lattice structure 2 to the first lattice unit 21, the second lattice unit 22 and the third lattice unit 23, the density of the first rib 211 in the first lattice unit 21 close to the shell 1 is greater than the density of the second rib 221 in the second lattice unit 22 located in the middle. This arrangement allows the denser first lattice unit 21 to effectively strengthen the structural strength of the shell 1, while the relatively sparse second lattice unit 22 is arranged in the middle. On the one hand, the purpose of reducing the weight of the lattice structure 2 can be achieved, and on the other hand, it can effectively ensure that the lattice structure 2 does not hinder the transmission of sound waves in the installation cavity 11, thereby ensuring the sound quality effect and acoustic performance of the sound-emitting device 100.

[0089] In order to ensure the structural strength of the lattice structure 2, in one embodiment, the first lattice unit 21, the second lattice unit 22 and the third lattice unit 23 may be an integrally formed structure, such as integral injection molding or integral processing molding, which is not limited here.

[0090] It should be noted that the density of the lattice structure 2 refers to the density of the ribs 24 of the lattice structure 2 in the mounting cavity 11. In this embodiment, the density of the second lattice unit 22 is less than that of the first lattice unit 21, and the density of the second lattice unit 22 is less than that of the third lattice unit 23.

[0091] Optionally, the distribution density of the plurality of second ribs 221 in the second lattice unit 22 is less than the distribution density of the plurality of third ribs 231 in the third lattice unit 23. It can be understood that such an arrangement enables the third lattice unit 23 to support and strengthen the sound device 3, thereby further strengthening the strength of the housing 1.

[0092] It can be understood that the distribution density of the plurality of first ribs 211 in the first lattice unit 21 is the same as the distribution density of the plurality of third ribs 231 in the third lattice unit 23. Of course, in other embodiments, the distribution density of the plurality of first ribs 211 in the first lattice unit 21 is different from the distribution density of the plurality of third ribs 231 in the third lattice unit 23, which is not limited here.

[0093] In this embodiment, the cross-sectional shape of the first rib 211 may be at least one of a circle, an ellipse, and a polygon. The cross-sectional shape of the second rib 221 may be at least one of a circle, an ellipse, and a polygon. The cross-sectional shape of the third rib 231 may be at least one of a circle, an ellipse, and a polygon, which are not limited here.

[0094] To facilitate processing and improve processing efficiency, in one embodiment, the first rib 211 of the first lattice unit 21 may be cylindrical, the second rib 221 of the second lattice unit 22 may be cylindrical, and the third rib 231 of the third lattice unit 23 may be cylindrical.

[0095] It can be understood that the diameter of the first rib 211 is defined as d1, the diameter of the second rib 221 is defined as d2, and the diameter of the third rib 231 is defined as d3. Optionally, d1 = 0.2 mm to 20 mm; d2 = 0.2 mm to 20 mm; d3 = 0.2 mm to 20 mm. By setting the diameter d1 of the first rib 211, the diameter d2 of the second rib 221, and the diameter d3 of the third rib 231 within the range of 0.2 mm to 20 mm, the lattice structure 2 can meet the requirements of strengthening the shell 1 while meeting the requirements of sound wave transmission and acoustic volume inside the shell 1.

[0096] Optionally, the diameter d1 of the first rib 211 is 0.2 mm, 0.5 mm, 0.8 mm, 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, etc., which is not limited here. The diameter d2 of the second rib 221 is 0.2 mm, 0.5 mm, 0.8 mm, 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, etc., which is not limited here. The diameter d3 of the third rib 231 is 0.2 mm, 0.5 mm, 0.8 mm, 1 mm, 5 mm, 10 mm, 15 mm, 20 mm, etc., which is not limited here.

[0097] In one embodiment, if Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the housing 1 has a first direction, a second direction and a third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0098] In this embodiment, a plurality of first ribs 211 are arranged at intervals along the first direction, the second direction and the third direction to form a first lattice unit 21, and a plurality of second ribs 221 are arranged at intervals along the first direction, the second direction and the third direction to form a second lattice unit 22. Optionally, the first lattice unit 21 is disposed between the second lattice unit 22 and the housing 1.

[0099] Understandable, such as Figure 2 , Figure 3 , Figures 5 to 7As shown, one end of the first rib 211 of the first lattice unit 21 is connected to the inner wall of the bottom shell 12 of the housing 1 or the reinforcing rib 122, and the other end of the first rib 211 is connected to the second rib 221 of the second lattice unit 22. One end of the second rib 221 of the second lattice unit 22 away from the first rib 211 of the first lattice unit 21 is connected to the third rib 231 of the third lattice unit 23.

[0100] Optionally, the first lattice unit 21 has a similar outline to the bottom shell 12 of the housing 1, and the second lattice unit 22 is nested in the cavity formed by the first lattice unit 21. Optionally, the second lattice unit 22 has a similar outline to the cavity formed by the first lattice unit 21.

[0101] In one embodiment, the spacing between two adjacent first ribs 211 along the first direction, the spacing between two adjacent first ribs 211 along the second direction, and the spacing between two adjacent first ribs 211 along the third direction are all the same, and the spacing between two adjacent first ribs 211 along the first direction is defined as L1; the spacing between two adjacent second ribs 221 along the first direction, the spacing between two adjacent second ribs 221 along the second direction, and the spacing between two adjacent second ribs 221 along the third direction are all the same, and the spacing between two adjacent second ribs 221 along the first direction is defined as L2; ​​wherein, L2>L1; and / or, L1=2mm~100mm, L2mm=5mm~1000mm.

[0102] In this embodiment, if Figure 7 As shown, along the first direction, by setting the spacing L1 between two adjacent first ribs 211 of the first lattice unit 21 to be smaller than the spacing L2 between two adjacent second ribs 221 of the second lattice unit 22, the density of the first lattice unit 21 is greater than the density of the second lattice unit 22, that is, the density of the first ribs 211 of the first lattice unit 21 is greater than the density of the second ribs 221 of the second lattice unit 22, so that the first lattice unit 21, the second lattice unit 22 and the third lattice unit 23 cooperate to effectively strengthen the structural strength of the shell 1, avoid or reduce the resonance or resonance of the shell 1 with the sound-generating device 3, and at the same time, the second lattice unit 22 is arranged relatively sparsely to reduce the overall weight and expand the acoustic volume in the shell 1.

[0103] Optionally, the spacing between two adjacent first ribs 211 of the first lattice unit 21 along the first direction, the spacing between two adjacent first ribs 211 along the second direction, and the spacing between two adjacent first ribs 211 along the third direction are all the same, so that the sizes of the multiple hollow cavities formed by the first lattice unit 21 are consistent.

[0104] Optionally, the spacing between two adjacent second ribs 221 of the second lattice unit 22 along the first direction, the spacing between two adjacent second ribs 221 along the second direction, and the spacing between two adjacent second ribs 221 along the third direction are all the same, so that the sizes of the multiple hollow cavities formed by the first lattice unit 21 are consistent.

[0105] In this embodiment, the spacing L1 between two adjacent first ribs 211 of the first lattice unit 21 along the first direction can be optionally set to 2 mm to 100 mm. Optionally, L1 is 2 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm, 45 mm, 50 mm, 55 mm, 60 mm, 65 mm, 70 mm, 75 mm, 80 mm, 85 mm, 90 mm, 95 mm, 100 mm, etc., which are not limited here. The spacing L2 between two adjacent second ribs 221 of the second lattice unit 22 along the first direction can be optionally set to 5 mm to 1000 mm. Optionally, L2 is 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, 100mm, 200mm, 300mm, 400mm, 500mm, 600mm, 700mm, 800mm, 900mm, 1000mm, etc., which are not limited here. It can be understood that, through simulation, the lattice structure 2 within this value range can meet the requirements of strengthening the shell 1 and the requirements of sound wave transmission and acoustic volume inside the shell 1.

[0106] In one embodiment, the plurality of third ribs 231 include a plurality of first sub-ribs 2311, a plurality of second sub-ribs 2313, a plurality of third sub-ribs 2316, and a plurality of fourth sub-ribs 2317. The plurality of first sub-ribs 2311 enclose a first circular tube 2312 corresponding to the sound outlet 131 and are connected to the second lattice unit 22. The plurality of second sub-ribs 2313 enclose a second circular tube 2314 corresponding to the sound outlet 131. The second circular tube 2314 is disposed on the first circular tube 23 12, and is spaced from the wall of the first circular cylinder 2312 to form a gap 2315, a plurality of third sub-ribs 2316 are arranged in the gap 2315, and are connected to the first circular cylinder 2312 and the second circular cylinder 2314, a plurality of fourth sub-ribs 2317 are arranged in the second circular cylinder 2314, and are spaced along the circumferential direction of the second circular cylinder 2314 to cooperate to form an expanded groove 2318, and the expanded groove 2318 and the second circular cylinder 2314 are enclosed to form a receiving groove 232 connected to the sound outlet 131.

[0107] In this embodiment, if Figures 2 to 6As shown, by setting the third lattice unit 23 as a cylindrical structure, the third lattice unit 23 is provided with a receiving groove 232 corresponding to the sound outlet 131. On the one hand, it is convenient to utilize the receiving groove 232 to accommodate and install the sound-emitting device 3, and on the other hand, the structural strength of the third lattice unit 23 is further improved.

[0108] It can be understood that by setting the third rib 231 of the third lattice unit 23 as four types of ribs 24, namely, the first sub-rib 2311, the second sub-rib 2313, the third sub-rib 2316 and the fourth sub-rib 2317, a plurality of first sub-ribs 2311 are enclosed to form a first circular cylinder 2312 corresponding to the sound outlet 131, a plurality of second sub-ribs 2313 are enclosed to form a second circular cylinder 2314 corresponding to the sound outlet 131, and the second circular cylinder 2314 is nested in the first circular cylinder 2312, and a gap 2315 is formed between the first circular cylinder 2312 and the second circular cylinder 2314, and a plurality of third sub-ribs 2316 are arranged in the gap 2315. 15, and connected with the first circular cylinder 2312 and the second circular cylinder 2314, so that the density and structural strength of the third lattice unit 23 can be effectively enhanced, and a plurality of fourth sub-ribs 2317 are further arranged in the second circular cylinder 2314, so that the plurality of fourth sub-ribs 2317 are arranged at intervals along the circumferential direction of the second circular cylinder 2314 to cooperate to form an expansion groove 2318, so that the expansion groove 2318 and the second circular cylinder 2314 are used to enclose a receiving groove 232 connected to the sound outlet 131, so that the plurality of second sub-ribs 2313 and the plurality of fourth sub-ribs 2317 are used to support and limit the sound-emitting device 3, so as to further improve the installation stability of the sound-emitting device 3.

[0109] Optionally, the third rib 231 of the third lattice unit 23 may be cylindrical, that is, the first sub-rib 2311, the second sub-rib 2313, the third sub-rib 2316 and the fourth sub-rib 2317 are all cylindrical. In this embodiment, a plurality of third sub-ribs 2316 are arranged in a V-shape or a zigzag shape in the gap 2315, which can further enhance the structural stability and strength of the third lattice unit 23.

[0110] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A sound-generating device, characterized in that: The sound-generating device comprises: A housing, wherein the housing is provided with a mounting cavity and a sound outlet communicating with the mounting cavity; A lattice structure, wherein the lattice structure is arranged in the installation cavity, the lattice structure is provided with a receiving groove corresponding to the sound outlet, and the lattice structure is a porous structure formed by connecting a plurality of ribs; and A sound-generating device, the sound-generating device is arranged in the containing groove and corresponds to the sound outlet; The volume of the installation cavity is defined as V1, and the volume occupied by the plurality of ribs in the lattice structure is defined as V2, where V2 = (0.5% to 30%) V1.

2. The sound-generating device according to claim 1, characterized in that: The lattice structure is filled between the housing and the sound-generating device; And / or, the lattice structure and the shell are an integrally formed structure; And / or, the cross-sectional shape of the rib is at least one of circular, elliptical, and polygonal; And / or, the lattice structure has a plurality of through holes, and the shape of the through holes is at least one of circular, elliptical, and polygonal; And / or, the rib is at least one of a straight line segment, an arc segment, a curve segment, and a circular ring shape.

3. The sound generating device according to claim 1, characterized in that: The rib is cylindrical, and the diameter of the rib is defined as d, where d=0.2 mm to 20 mm.

4. The sound generating device according to claim 1, characterized in that: The plurality of ribs are evenly distributed in the mounting cavity so that the density of the lattice structure between the housing and the sound-generating device is the same; Alternatively, the plurality of ribs are unevenly distributed in the mounting cavity, so that the density of the lattice structure between the housing and the sound-generating device is different.

5. The sound generating device according to claim 1, characterized in that: The lattice structure includes a first lattice unit, a second lattice unit and a third lattice unit, the first lattice unit is connected to the inner wall of the shell, the third lattice unit forms the receiving groove corresponding to the sound outlet, and the second lattice unit is located between the first lattice unit and the third lattice unit and connected to the first lattice unit and the third lattice unit; Among them, the first lattice unit includes a plurality of first ribs, the second lattice unit includes a plurality of second ribs, and the third lattice unit includes a plurality of third ribs, and the distribution density of the plurality of second ribs in the second lattice unit is less than the distribution density of the plurality of first ribs in the first lattice unit.

6. The sound generating device according to claim 5, characterized in that: The distribution density of the second ribs in the second lattice unit is less than the distribution density of the third ribs in the third lattice unit; And / or, the distribution density of the first ribs in the first lattice unit is the same as the distribution density of the third ribs in the third lattice unit; or, the distribution density of the first ribs in the first lattice unit is different from the distribution density of the third ribs in the third lattice unit; And / or, the first lattice unit, the second lattice unit and the third lattice unit are an integrally formed structure; And / or, the cross-sectional shape of the first rib, the cross-sectional shape of the second rib and the cross-sectional shape of the third rib are at least one of circular, elliptical and polygonal; or, the first rib is cylindrical, and the diameter of the first rib is defined as d1, d1=0.2mm~20mm; the second rib is cylindrical, and the diameter of the second rib is defined as d2, d2=0.2mm~20mm; the third rib is cylindrical, and the diameter of the third rib is defined as d3, d3=0.2mm~20mm.

7. The sound generating device according to claim 5, characterized in that: The housing has a first direction, a second direction and a third direction, and the first direction, the second direction and the third direction are perpendicular to each other; A plurality of the first ribs are arranged at intervals along the first direction, the second direction and the third direction respectively to form the first lattice unit; A plurality of the second ribs are arranged at intervals along the first direction, the second direction and the third direction to form the second lattice unit.

8. The sound generating device according to claim 7, characterized in that: The spacing between two adjacent first ribs along the first direction, the spacing between two adjacent first ribs along the second direction, and the spacing between two adjacent first ribs along the third direction are all the same, and the spacing between two adjacent first ribs along the first direction is defined as L1; The spacing between two adjacent second ribs along the first direction, the spacing between two adjacent second ribs along the second direction, and the spacing between two adjacent second ribs along the third direction are all the same, and the spacing between two adjacent second ribs along the first direction is defined as L2; Among them, L2>L1; and / or, L1=2mm~100mm, L2mm=5mm~1000mm.

9. The sound generating device according to claim 5, characterized in that: The plurality of third ribs include a plurality of first sub-ribs, a plurality of second sub-ribs, a plurality of third sub-ribs and a plurality of fourth sub-ribs. The plurality of first sub-ribs enclose a first circular tube corresponding to the sound outlet and are connected to the second lattice unit. The plurality of second sub-ribs enclose a second circular tube corresponding to the sound outlet. The second circular tube is arranged in the first circular tube and is spaced from the tube wall of the first circular tube to form a gap. The plurality of third sub-ribs are arranged in the gap and are connected to the first circular tube and the second circular tube. The plurality of fourth sub-ribs are arranged in the second circular tube and are spaced along the circumferential direction of the second circular tube to cooperate to form a flaring groove. The flaring groove and the second circular tube enclose a accommodating groove connected to the sound outlet.

10. The sound generating device according to any one of claims 1 to 9, characterized in that: The inner wall of the shell is provided with a plurality of reinforcing ribs; the plurality of ribs are connected to the plurality of reinforcing ribs and / or the inner wall of the shell; And / or, the housing comprises a bottom shell and a cover plate, the bottom shell is provided with a mounting groove, the cover plate covers the notch of the mounting groove and encloses the bottom shell to form the mounting cavity, and the cover plate is provided with the sound outlet; And / or, the material of the ribs is at least one of carbon fiber reinforced composite materials, nylon materials, resin materials, and metal materials; And / or, the sound-emitting device is a speaker.

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