Sound production device

Abstract

The utility model discloses an embodiment of sounding device, this sounding device includes support, bass monomer and treble monomer. Among them, support has first containing groove and second containing groove, bass monomer includes first magnetic circuit system and first vibration system, and first magnetic circuit system and first vibration system are set up on the support through first containing groove, and first magnetic circuit system exposes from the bottom of support and is equipped with first through -hole in the bottom, and first through -hole communicates first containing groove, and the inner wall of first containing groove is equipped with guide groove, and guide groove communicates first containing groove and penetrates to the bottom of support, and first magnetic circuit system cooperates guide groove and forms second through -hole, and treble monomer is set up on the support through second containing groove. Therefore, sounding device realizes through a support to accommodate bass monomer and treble monomer, is helpful to save equipment space and simplifies assembly process.

Description

Technical Field

[0001] This utility model relates to the field of electroacoustic conversion technology, and in particular to a sound-generating device. Background Technology

[0002] Currently, most sound-generating devices on the market are independent individual structures. However, in certain specific scenarios, sound-generating devices need to be combined to improve the overall audio effect. For example, when electronic devices such as smart glasses need to improve the high-frequency effect, they are usually equipped with an independent mid-bass driver and an independent tweeter driver. This takes up more space and the assembly process is more complicated. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a sound-generating device that integrates the mid-bass driver and the tweeter driver into one unit.

[0004] This utility model embodiment provides a sound-generating device, which includes: a bracket having a first receiving groove and a second receiving groove; a mid-bass driver including a first magnetic circuit system and a first vibration system, the first magnetic circuit system and the first vibration system being disposed on the bracket through the first receiving groove, the first magnetic circuit system being exposed from the bottom of the bracket, the bottom of the first magnetic circuit system having a first through hole communicating with the first receiving groove, the inner wall of the first receiving groove having a guide groove communicating with the first receiving groove and penetrating to the bottom of the bracket, the first magnetic circuit system cooperating with the guide groove to form a second through hole; and a tweeter located in the second receiving groove and disposed on the bracket.

[0005] In some embodiments, the two first through holes are symmetrical about a first axis of symmetry; the two second through holes are symmetrical about a second axis of symmetry, which is perpendicular to the first axis of symmetry.

[0006] In some embodiments, the bottom of the first magnetic circuit system is provided with a first mesh cloth covering the opening of the first through hole; the bottom of the bracket is provided with a second mesh cloth covering the opening of the second through hole.

[0007] In some embodiments, the first magnetic circuit system includes: a first magnetic bowl, which is connected to a bracket and protrudes from the bottom of the bracket, the first magnetic bowl having a first through hole, and the first magnetic bowl cooperating with a guide groove to form a second through hole; a first magnet, which is disposed on the first magnetic bowl; and a first top plate, which is disposed on the first magnet.

[0008] In some embodiments, the first magnetic bowl is provided with a first weight-reducing hole.

[0009] In some embodiments, the first top plate is provided with a second weight-reducing hole.

[0010] In some embodiments, the first magnetic bowl includes: a first main body portion, on which a first magnet is provided, the first main body portion extending upward to form a first sidewall, the first sidewall being spaced apart from the first magnet and the first top piece, the first sidewall cooperating with a guide groove to form a second through hole; and a vent portion, the vent portion extending outward from the first main body portion, the vent portion being provided with the first through hole, the vent portion extending upward to form a second sidewall, the second sidewall being spaced apart from the first magnet and the first top piece.

[0011] In some embodiments, the first vibration system includes: a first drive coil suspended in a first magnetic gap formed by a first magnetic circuit system; and a first diaphragm connected to the top of the support and the top of the first drive coil.

[0012] In some embodiments, the first vibration system further includes a first dome, which is connected to the first drive coil and the first diaphragm.

[0013] In some embodiments, the first vibration system further includes a centering support plate connected to the bottom of the bracket and the bottom of the first drive coil.

[0014] In some embodiments, the tweeter includes a second magnetic circuit system and a second vibration system, which are mounted on a bracket via a second receiving slot.

[0015] In some embodiments, the second magnetic circuit system protrudes from the bottom of the bracket, and the bottom of the second magnetic circuit system is provided with a third through hole, which connects to the second receiving groove.

[0016] In some embodiments, a third mesh is provided at the bottom of the second magnetic circuit system, which covers the opening of the third through hole.

[0017] In some embodiments, the second magnetic circuit system includes: a second magnetic cup connected to a bracket and protruding from the bottom of the bracket, the second magnetic cup having a third through hole; a second magnet disposed on the second magnetic cup; and a second top plate disposed on the second magnet.

[0018] In some embodiments, the second magnetic bowl includes: a second main body portion, a second magnet disposed on the second main body portion, a third sidewall extending upward from the second main body portion, the third sidewall being spaced apart from the second magnet and the second top plate, and a third through hole disposed on the second main body portion.

[0019] In some embodiments, the second magnet is provided with a first drain hole, which is aligned with a third through hole; the second top plate is provided with a second drain hole, which is aligned with the first drain hole and connected to the second receiving groove.

[0020] In some embodiments, the second vibration system includes: a second drive coil suspended in a second magnetic gap formed by the second magnetic circuit system; and a second diaphragm connected to the top of the support and the top of the second drive coil.

[0021] In some embodiments, the second vibration system further includes a second dome, which is connected to a second drive coil and a second diaphragm.

[0022] In some embodiments, a fourth through hole is provided on the second sphere.

[0023] In some embodiments, a waterproof and breathable membrane is provided on the second dome, which covers the opening of the fourth through hole.

[0024] This utility model provides a sound-generating device, which includes a bracket, a mid-bass driver, and a tweeter. The bracket has a first receiving slot and a second receiving slot. The mid-bass driver includes a first magnetic circuit system and a first vibration system. The first magnetic circuit system and the first vibration system are mounted on the bracket through the first receiving slot. The first magnetic circuit system protrudes from the bottom of the bracket and has a first through hole at the bottom, which connects to the first receiving slot. The inner wall of the first receiving slot has a guide groove that connects to the first receiving slot and penetrates to the bottom of the bracket. The first magnetic circuit system, in conjunction with the guide groove, forms a second through hole. The tweeter is mounted on the bracket through the second receiving slot. Thus, the sound-generating device achieves the accommodation of the mid-bass driver and the tweeter with a single bracket, helping to save equipment space and simplify the assembly process. Attached Figure Description

[0025] The above and other objects, features, and advantages of the present invention will become clearer from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:

[0026] Figure 1 This is a schematic diagram of the structure of the first sound-generating device provided in this embodiment of the utility model;

[0027] Figure 2 This is a structural schematic diagram of the first sound-generating device provided in this embodiment of the present invention from another perspective;

[0028] Figure 3 This is a schematic diagram of the structure of the bracket provided in an embodiment of the present utility model;

[0029] Figure 4 This is a structural schematic diagram of the bracket provided in another embodiment of the present utility model;

[0030] Figure 5 This is a schematic diagram of the frequency response curve of a sound-generating device provided in an embodiment of this utility model;

[0031] Figure 6This is a schematic diagram of the structure of the first sound-generating device provided in this embodiment of the present invention, after removing the first mesh and the second mesh.

[0032] Figure 7 This is a cross-sectional schematic diagram of the first sound-generating device provided in this embodiment of the present utility model;

[0033] Figure 8 This is a cross-sectional schematic diagram from another perspective of the first sound-generating device provided in this embodiment of the utility model;

[0034] Figure 9 This is an exploded schematic diagram of the first sound-generating device provided in this embodiment of the present invention;

[0035] Figure 10 This is a schematic diagram of the structure of a first magnetic bowl provided in an embodiment of the present utility model;

[0036] Figure 11 This is a structural schematic diagram of a first magnetic bowl from another perspective, provided by an embodiment of this utility model;

[0037] Figure 12 This is a schematic diagram of the structure of a second magnetic bowl provided in an embodiment of the present invention;

[0038] Figure 13 This is a schematic diagram of the structure of the second sound-generating device provided in this embodiment of the utility model;

[0039] Figure 14 This is an exploded schematic diagram of the second sound-generating device provided in this embodiment of the present invention;

[0040] Figure 15 This is a cross-sectional schematic diagram of the second sound-generating device provided in this embodiment of the present invention;

[0041] Figure 16 This is a schematic diagram of another first magnetic bowl provided in an embodiment of the present invention;

[0042] Figure 17 This is a schematic diagram of the structure of a first top piece provided in an embodiment of the present invention;

[0043] Figure 18 This is a schematic diagram of the structure of the third sound-generating device provided in this embodiment of the utility model;

[0044] Figure 19 This is an exploded schematic diagram of the third sound-generating device provided in this embodiment of the utility model;

[0045] Figure 20 This is a schematic diagram of another second magnetic bowl provided in an embodiment of the present invention;

[0046] Figure 21This is a cross-sectional schematic diagram of the third sound-generating device provided in this embodiment of the utility model;

[0047] Figure 22 This is a schematic diagram of the structure of the fourth sound-generating device provided in this embodiment of the utility model;

[0048] Figure 23 This is a cross-sectional schematic diagram of the fourth sound-generating device provided in this embodiment of the utility model;

[0049] Figure 24 This is an exploded schematic diagram of the fourth sound-generating device provided in this embodiment of the utility model.

[0050] Explanation of reference numerals in the attached figures:

[0051] 1-Bracket; 11-First receiving groove; 111-Guide groove; 12-Second receiving groove; 13-Positioning part; 14-Protrusion; 2-Mid-bass driver; 21-First magnetic circuit system; 211-First magnetic cup; 2111-First weight reduction hole; 2112-First main body; 2113-First side wall; 2114-Ventilation part; 2115-Second side wall; 2116-First auxiliary groove; 212-First magnet; 213-First top plate; 2131-Second weight reduction hole; 214-First magnetic gap; 22-First vibration system; 221-First drive coil; 222-First diaphragm; 2221-First inner ring; 2222-First folded ring; 2223-First outer ring; 223-First dome; 224-Centering support; 23- 24-Second through hole; 25-First mesh fabric; 26-Second mesh fabric; 3-Tweeter driver; 31-Second magnetic circuit system; 311-Second magnetic cup; 3111-Second main body; 3112-Third side wall; 3113-Second auxiliary groove; 312-Second magnet; 3121-First drain hole; 313-Second top plate; 3131-Second drain hole; 314-Second magnetic gap; 32-Second vibration system; 321-Second drive coil; 322-Second diaphragm; 3221-Second inner ring; 3222-Second folded ring; 3223-Second outer ring; 323-Second dome; 33-Third through hole; 34-Third mesh fabric; 35-Fourth through hole; 36-Waterproof and breathable membrane; a-First axis of symmetry; b-Second axis of symmetry. Detailed Implementation

[0052] The present application is described below based on embodiments, but it is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without these details. To avoid obscuring the substance of the present application, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0053] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0054] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to 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 based on the specific circumstances.

[0055] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0056] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0057] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0058] Figure 1 This is a schematic diagram of the structure of the first sound-generating device provided in this embodiment of the utility model. Figure 2 This is a structural schematic diagram of the first sound-generating device provided in this embodiment of the present invention from another perspective, combined with... Figure 1 and Figure 2 As shown, the sound-generating device includes a stand 1, a mid-bass driver 2, and a tweeter 3. Furthermore, Figure 3 This is a schematic diagram of the structure of the bracket provided in an embodiment of the present invention. Figure 4 This is a structural schematic diagram of the bracket provided in another embodiment of the present invention, combined with... Figure 3 and Figure 4 As shown, the bracket 1 has a first receiving slot 11 and a second receiving slot 12, with the first receiving slot 11 being larger than the second receiving slot 12. It is readily understood that the first receiving slot 11 is used to house the mid-bass driver 2, and the second receiving slot 12 is used to house the tweeter 3. It should be noted that simultaneously mounting the mid-bass driver 2 and the tweeter 3 using a single bracket 1 helps simplify the structure of the electronic device housing the sound-producing mechanism. Furthermore, the mid-bass driver 2 and the tweeter 3 share the positioning portion 13 between the first receiving slot 11 and the second receiving slot 12, which helps save equipment space and simplify the assembly process. Figure 5 This is a schematic diagram of the frequency response curve of a sound-generating device provided in an embodiment of this utility model, as shown below. Figure 5 As shown, integrating the mid-bass driver 2 and the tweeter 3 into a single unit helps improve the acoustic performance of the sound-generating device. It should be noted that the mid-bass driver 2 and the tweeter 3 are powered independently. Volume enhancement can be achieved by providing unidirectional or inverse signals to the mid-bass driver 2 and the tweeter 3, or partial cancellation can be used to achieve various functions such as private calls.

[0059] Specifically, the mid-bass driver 2 includes a first magnetic circuit system 21 and a first vibration system 22, which are mounted on the bracket 1 via a first receiving slot 11. Correspondingly, the tweeter is mounted on the bracket 1 via a second receiving slot 12. Furthermore, Figure 6 This is a schematic diagram of the structure of the first sound-generating device provided in this embodiment of the present invention, excluding the first and second mesh fabrics. Figure 6 As shown, the first magnetic circuit system 21 protrudes from the bottom of the bracket 1, and the bottom of the first magnetic circuit system 21 is provided with a first through hole 23. It is readily understood that the first through hole 23 connects to the first receiving groove 11. Combined with... Figures 3 to 6 As shown, the inner wall of the first receiving groove 11 is provided with a guide groove 111, which connects to the first receiving groove 11 and penetrates to the bottom of the bracket 1. The first magnetic circuit system 21 cooperates with the guide groove 111 to form a second through hole 24. Thus, by setting the first through hole 23 and the second through hole 24, the mid-bass driver 2 helps to balance the air pressure inside and outside the first receiving groove 11, thereby ensuring compliance and reducing distortion.

[0060] like Figure 6As shown, in one embodiment, there are two first through holes 23, which are symmetrical about a first axis of symmetry a. Further, there are two second through holes 24, which are symmetrical about a second axis of symmetry b, wherein the second axis of symmetry b is perpendicular to the first axis of symmetry a. It is readily understood that the mid-bass driver 2 is generally formed as a rectangular driver, with the two first through holes 23 positioned close to the shorter sides, and the two second through holes 24 located at the center of the longer sides. It is readily understood that the symmetrical arrangement of the first through holes 23 and the second through holes 24 helps to balance air pressure.

[0061] like Figure 2 As shown, in one embodiment, the bottom of the first magnetic circuit system 21 is provided with a first mesh 25, and the bottom of the support 1 is provided with a second mesh 26. Specifically, the first mesh 25 covers the opening of the first through hole 23, and the second mesh 26 covers the opening of the second through hole 24. Optionally, the first mesh 25 and the second mesh 26 are configured as mesh fabrics, which helps to locally suppress the amplitude near the resonant frequency point, making the frequency response curve flatter and reducing total harmonic distortion, thereby improving sound quality. It should be noted that the arrangement of the first mesh 25 and the second mesh 26 facilitates the adjustment of airflow damping. For example, the damping coefficient can be adjusted by conveniently adjusting the sparseness of the second mesh 26 covering the second through hole 24 as needed.

[0062] Figure 7 This is a cross-sectional schematic diagram of the first sound-generating device provided in this embodiment of the present invention. Figure 8 This is a cross-sectional schematic diagram from another perspective of the first sound-generating device provided in this embodiment of the present invention. Figure 9 This is an exploded schematic diagram of the first sound-generating device provided in this embodiment of the present invention, combined with... Figures 7 to 9 As shown, in one embodiment, the first magnetic circuit system 21 includes a first magnetic bowl 211, a first magnet 212, and a first top plate 213. Specifically, the first magnetic bowl 211 is connected to the bracket 1 and protrudes from the bottom of the bracket 1. A first through hole 23 is disposed on the first magnetic bowl 211, and the first magnetic bowl 211 cooperates with the guide groove 111 to form a second through hole 24. Further, the first magnet 212 is disposed on the first magnetic bowl 211, and the first top plate 213 is disposed on the first magnet 212. It is readily understood that the first magnetic bowl 211 and the first top plate 213 are made of a soft magnetic material. Further, the first magnetic bowl 211, the first magnet 212, and the first top plate 213 cooperate to form a first magnetic gap 214.

[0063] Figure 10 This is a schematic diagram of the structure of a first magnetic bowl provided in an embodiment of the present invention. Figure 11 This is a structural schematic diagram of a first magnetic bowl from another perspective, provided by an embodiment of this utility model. Figure 10 and Figure 11As shown, in one embodiment, the first magnetic bowl 211 includes a first main body 2112 and a vent 2114. The first main body 2112 is used to house the first magnet 212. Further, the first main body 2112 extends upward to form a first sidewall 2113. Figure 8 As shown, the first sidewall 2113 is spaced apart from the first magnet 212 and the first top plate 213 to form a first magnetic gap 214, and the first sidewall 2113 cooperates with the guide groove 111 to form a second through hole 24. On the other hand, the vent portion 2114 extends outward from the first main body portion 2112, and the first through hole 23 is provided on the vent portion 2114. It is easy to understand that by providing the first through hole 23 in the vent portion 2114 of the first magnetic bowl 211, it can directly connect to the first receiving groove 11 without having to make additional openings in the first magnet 212 and the first top plate 213. Further, the vent portion 2114 extends upward to form a second sidewall 2115, and the second sidewall 2115 is spaced apart from the first magnet 212 and the first top plate 213 to form the first magnetic gap 214.

[0064] Optionally, the first mesh fabric 25 is adhered to the bottom of the first magnetic bowl 211 using double-sided adhesive. For example... Figure 11 As shown, in one embodiment, the bottom of the breathable part 2114 is provided with two first auxiliary grooves 2116. The first auxiliary grooves 2116 surround the first through hole 23 and match the first mesh fabric 25. The two first mesh fabrics 25 are positioned and bonded to the two first auxiliary grooves 2116 by double-sided adhesive.

[0065] Optionally, the second mesh fabric 26 is adhered to the bottom of the bracket 1 using double-sided adhesive. Figure 3 and Figure 4 As shown, in one embodiment, the bottom of the bracket 1 has two protrusions 14, the positions of which match the guide grooves 111, i.e., the guide grooves 111 penetrate to the end faces of the protrusions 14. Further, a second mesh fabric 26 is simultaneously bonded to both protrusions 14 using double-sided adhesive, thereby simultaneously covering both second through holes 24. In addition, the end faces of the protrusions 14 are flush with the bottom of the first magnetic cup 211, and the second mesh fabric 26 is also bonded to a portion of the bottom of the first magnetic cup 211 using double-sided adhesive, which helps to increase the bonding area and enhance the bonding strength.

[0066] Combination Figures 7 to 9 As shown, in one embodiment, the first vibration system 22 includes a first drive coil 221 and a first diaphragm 222. Specifically, the first drive coil 221 is suspended in a first magnetic gap 214 formed by the first magnetic circuit system 21, and the first diaphragm 222 is connected to the top of the support 1 and the top of the first drive coil 221 to vibrate under the drive of the first drive coil 221.

[0067] Combination Figures 7 to 9 As shown, in one embodiment, the first vibration system 22 further includes a first dome 223. The first dome 223 is connected to both the first drive coil 221 and the first diaphragm 222. Specifically, the first diaphragm 222 includes, from the inside out, a first inner ring portion 2221, a first folded ring portion 2222, and a first outer ring portion 2223. Further, the first inner ring portion 2221 is hollowed out in the middle, the first dome 223 is bonded to the bottom of the first inner ring portion 2221 to form a closed loop, the first drive coil 221 is bonded to the bottom of the first dome 223, and the bottom of the first outer ring portion 2223 is bonded to the top of the support 1.

[0068] Combination Figures 7 to 9 As shown, in one embodiment, the first vibration system 22 further includes a centering support 224. Specifically, the centering support 224 is bonded to the bottom of the bracket 1 and the bottom of the first drive coil 221. It should be noted that the centering support 224 is configured as a flexible circuit board, which facilitates the conduction of electrical signals in the first drive coil 221 when connected to it. Simultaneously, the connection between the centering support 224 and the first drive coil 221 suppresses vibration and sway, thus improving sound quality. It should be further noted that there are two centering supports 224, located on the shorter sides of the mid-bass driver 2. Furthermore, the height of the second sidewall 2115 is less than that of the first sidewall 2113, and a portion of the bottom of the centering support 224 is mounted on the top of the second sidewall 2115.

[0069] Combination Figure 1 and Figure 2 As shown, in one embodiment, the tweeter 3 includes a second magnetic circuit system 31 and a second vibration system 32. Specifically, the second magnetic circuit system 31 and the second vibration system 32 are disposed on the bracket 1 via a second receiving groove 12.

[0070] like Figure 6 As shown, in one embodiment, the second magnetic circuit system 31 protrudes from the bottom of the bracket 1. Further, in conjunction with... Figure 7 and Figure 9 As shown, the second magnetic circuit system 31 includes a second magnetic bowl 311, a second magnet 312, and a second top plate 313. Specifically, the second magnetic bowl 311 is connected to the support 1 and protrudes from the bottom of the support 1, the second magnet 312 is disposed on the second magnetic bowl 311, and the second top plate 313 is disposed on the second magnet 312. It is readily understood that the second magnetic bowl 311 and the second top plate 313 are made of soft magnetic material. Further, the second magnetic bowl 311, the second magnet 312, and the second top plate 313 cooperate to form a second magnetic gap 314.

[0071] Figure 12This is a schematic diagram of the structure of a second magnetic bowl provided in an embodiment of this utility model, as shown below. Figure 12 As shown, in one embodiment, the second magnetic bowl 311 includes a second main body 3111, on which a second magnet 312 is provided. Further, the second main body 3111 extends upward to form a third sidewall 3112, which is spaced apart from the second magnet 312 and the second top plate 313 to form a second magnetic gap 314.

[0072] Combination Figure 7 and Figure 9 As shown, in one embodiment, the second vibration system 32 includes a second drive coil 321 and a second diaphragm 322. Specifically, the second drive coil 321 is suspended in the second magnetic gap 314 formed by the second magnetic circuit system 31, and the second diaphragm 322 is connected to the top of the support 1 and the top of the second drive coil 321 to vibrate under the drive of the second drive coil 321. It should be noted that a portion of the centering support 224 extends out of the support 1, and the second drive coil 321 extends out of the support 1 through leads. The leads of the centering support 224 and the second drive coil 321 are respectively connected to external circuits to achieve independent power supply for the mid-bass driver 2 and the tweeter 3.

[0073] Combination Figure 7 and Figure 9 As shown, in one embodiment, the second vibration system 32 further includes a second dome 323. Specifically, the second dome 323 is connected to the second drive coil 321 and the second diaphragm 322. Specifically, the second diaphragm 322 includes, from the inside out, a second inner ring portion 3221, a second folded ring portion 3222, and a second outer ring portion 3223. Further, the second inner ring portion 3221 is hollow in the middle, the second dome 323 is bonded to the bottom of the second inner ring portion 3221 to form a closure, the second drive coil 321 is bonded to the bottom of the second dome 323, and the bottom of the second outer ring portion 3223 is bonded to the top of the bracket 1.

[0074] Figure 13 This is a schematic diagram of the structure of the second sound-generating device provided in this embodiment of the present invention. Figure 14 This is an exploded schematic diagram of the second sound-generating device provided in this embodiment of the present invention. Figure 15 This is a cross-sectional schematic diagram of the second sound-generating device provided in this embodiment of the utility model, combined with... Figure 13 and Figure 14 As shown, in one embodiment, the first magnetic circuit system 21 is provided with a first weight-reducing hole 2111 and a second weight-reducing hole 2131. Specifically, Figure 16 This is a schematic diagram of another first magnetic bowl provided in an embodiment of the present invention. Figure 17 This is a schematic diagram of the structure of a first top piece provided in an embodiment of this utility model, combined with... Figure 16 and Figure 17 As shown, a first weight-reduction hole 2111 is disposed on the first main body portion 2112 of the first magnetic bowl 211, and a second weight-reduction hole 2131 is disposed on the first top plate 213. Specifically, there are two first weight-reduction holes 2111 distributed at intervals, and the second weight-reduction hole 2131 is disposed along the length direction of the first top plate 213. It is easy to understand that by providing the first weight-reduction hole 2111 and the second weight-reduction hole 2131, it is helpful to reduce the mass of the sound-generating device, thereby helping to reduce the mass of the electronic device on which the sound-generating device is installed, so as to improve the user experience.

[0075] Figure 18 This is a structural schematic diagram of the third sound-generating device provided in this embodiment of the present invention. Figure 19 This is an exploded schematic diagram of the third sound-generating device provided in this embodiment of the present invention. Figure 20 This is a schematic diagram of another second magnetic bowl provided in an embodiment of the present invention. Figure 21 This is a cross-sectional schematic diagram of the third sound-generating device provided in this embodiment of the utility model, combined with... Figures 18 to 21 As shown, in one embodiment, the bottom of the second magnetic circuit system 31 is provided with a third through hole 33. It is readily understood that the third through hole 33 connects to the second receiving groove 12. Thus, by providing the third through hole 33, the tweeter 3 helps to balance the air pressure inside and outside the second receiving groove 12, thereby ensuring compliance and reducing distortion. Further, the bottom of the second magnetic circuit system 31 is provided with a third mesh 34, and the third mesh 34 covers the opening of the third through hole 33. Optionally, the third mesh 34 is set as a mesh fabric, which helps to locally suppress the amplitude near the resonant frequency point, making the frequency response curve flatter and reducing total harmonic distortion, thereby improving sound quality. It should be noted that the provision of the third mesh 34 facilitates the adjustment of airflow damping. For example, the damping coefficient can be adjusted by conveniently adjusting the sparseness of the third mesh 34 covering the third through hole 33 as needed.

[0076] Combination Figure 20 and Figure 21 As shown, in one embodiment, a third through hole 33 is disposed on the second main body portion 3111 of the second magnetic cup 311. Optionally, a third mesh fabric 34 is bonded to the bottom of the second magnetic cup 311 with double-sided adhesive. Further, a second auxiliary groove 3113 is provided at the bottom of the second main body portion 3111, the second auxiliary groove 3113 surrounds the third through hole 33 and matches the third mesh fabric 34, and the third mesh fabric 34 is positioned and bonded to the second auxiliary groove 3113 with double-sided adhesive.

[0077] Combination Figure 19 and Figure 21As shown, in one embodiment, the second magnet 312 is provided with a first drain hole 3121, and the first drain hole 3121 is aligned with the third through hole 33. Further, the second top plate 313 is provided with a second drain hole 3131, the second drain hole 3131 is aligned with the first drain hole 3121 and connects to the second receiving groove 12. Thus, the third through hole 33 connects to the second receiving groove 12 through the first drain hole 3121 and the second drain hole 3131.

[0078] Figure 22 This is a structural schematic diagram of the fourth sound-generating device provided in this embodiment of the utility model. Figure 23 This is a cross-sectional schematic diagram of the fourth sound-generating device provided in this embodiment of the present invention. Figure 24 This is an exploded schematic diagram of the fourth sound-generating device provided in this embodiment of the utility model, combined with... Figures 22 to 24 As shown, in one embodiment, the second dome 323 is provided with a fourth through hole 35, which connects to the second receiving groove 12. Thus, by providing the fourth through hole 35, the tweeter 3 helps to balance the air pressure inside and outside the second receiving groove 12, thereby ensuring compliance and reducing distortion.

[0079] Combination Figures 22 to 24 As shown, in one embodiment, a waterproof and breathable membrane 36 is provided on the second dome 323. Specifically, the waterproof and breathable membrane 36 covers the opening of the fourth through hole 35 to achieve waterproofing and breathability. Optionally, the waterproof and breathable membrane 36 is made of polytetrafluoroethylene or other materials with waterproof and breathable functions. Further, the waterproof and breathable membrane 36 is adhered to the top of the second dome 323 to cover the fourth through hole 35.

[0080] This utility model provides a sound-generating device, which includes a bracket, a mid-bass driver, and a tweeter. The bracket has a first receiving slot and a second receiving slot. The mid-bass driver includes a first magnetic circuit system and a first vibration system. The first magnetic circuit system and the first vibration system are mounted on the bracket through the first receiving slot. The first magnetic circuit system protrudes from the bottom of the bracket and has a first through hole at the bottom, which connects to the first receiving slot. The inner wall of the first receiving slot has a guide groove that connects to the first receiving slot and penetrates to the bottom of the bracket. The first magnetic circuit system, in conjunction with the guide groove, forms a second through hole. The tweeter is mounted on the bracket through the second receiving slot. Thus, the sound-generating device achieves the accommodation of the mid-bass driver and the tweeter with a single bracket, helping to save equipment space and simplify the assembly process.

[0081] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A sound-generating device, characterized in that, The sound-generating device includes: A bracket having a first receiving groove and a second receiving groove, with a positioning part between the first receiving groove and the second receiving groove; A mid-bass driver, comprising a first magnetic circuit system and a first vibration system, wherein the first magnetic circuit system and the first vibration system are mounted on a bracket via a first receiving groove, the first magnetic circuit system protruding from the bottom of the bracket, the bottom of the first magnetic circuit system having a first through hole communicating with the first receiving groove, the inner wall of the first receiving groove having a guide groove communicating with the first receiving groove and penetrating to the bottom of the bracket, the first magnetic circuit system cooperating with the guide groove to form a second through hole; and The tweeter is located in the second receiving slot and is mounted on the bracket.

2. The sound-generating device according to claim 1, characterized in that, The two first through holes are symmetrical about the first axis of symmetry; The two second through holes are symmetrical about a second axis of symmetry, which is perpendicular to the first axis of symmetry.

3. The sound-generating device according to claim 1, characterized in that, The bottom of the first magnetic circuit system is provided with a first mesh cloth, which covers the opening of the first through hole; The bottom of the bracket is provided with a second mesh, which covers the opening of the second through hole.

4. The sound-generating device according to claim 1, characterized in that, The first magnetic circuit system includes: A first magnetic bowl is connected to the bracket and protrudes from the bottom of the bracket. The first magnetic bowl has a first through hole and cooperates with the guide groove to form a second through hole. A first magnet, the first magnet being disposed on the first magnetic bowl; and The first top plate is disposed on the first magnet.

5. The sound-generating device according to claim 4, characterized in that, The first magnetic bowl is provided with a first weight reduction hole.

6. The sound-generating device according to claim 4, characterized in that, The first top plate is provided with a second weight reduction hole.

7. The sound-generating device according to claim 4, characterized in that, The first magnetic bowl includes: A first main body portion, on which the first magnet is disposed, and a first sidewall extending upward from the first main body portion, the first sidewall being spaced apart from the first magnet and the first top plate, the first sidewall cooperating with the guide groove to form a second through hole; and The ventilated part extends outward from the first main body and has the first through hole. The ventilated part extends upward to form a second sidewall, which is spaced apart from the first magnet and the first top plate.

8. The sound-generating device according to any one of claims 1-7, characterized in that, The first vibration system includes: A first driving coil, the first driving coil being suspended in a first magnetic gap formed by the first magnetic circuit system; and A first diaphragm is connected to the top of the bracket and the top of the first drive coil.

9. The sound-generating device according to claim 8, characterized in that, The first vibration system further includes: The first dome is connected to the first drive coil and the first diaphragm.

10. The sound-generating device according to claim 8, characterized in that, The first vibration system further includes: A centering support plate is connected to the bottom of the bracket and the bottom of the first drive coil.

11. The sound-generating device according to any one of claims 1-7, characterized in that, The tweeter includes a second magnetic circuit system and a second vibration system, which are mounted on the bracket via the second receiving groove.

12. The sound-generating device according to claim 11, characterized in that, The second magnetic circuit system is exposed from the bottom of the bracket, and the bottom of the second magnetic circuit system is provided with a third through hole, which connects to the second receiving groove.

13. The sound-generating device according to claim 12, characterized in that, The bottom of the second magnetic circuit system is provided with a third mesh, which covers the opening of the third through hole.

14. The sound-generating device according to claim 12, characterized in that, The second magnetic circuit system includes: The second magnetic bowl is connected to the bracket and protrudes from the bottom of the bracket, and the second magnetic bowl is provided with the third through hole; A second magnet, the second magnet being disposed on the second magnetic bowl; and The second top plate is disposed on the second magnet.

15. The sound-generating device according to claim 14, characterized in that, The second magnetic bowl includes: The second main body has a second magnet on it, and a third sidewall extends upward from the second main body. The third sidewall is spaced apart from the second magnet and the second top plate. The second main body has a third through hole.

16. The sound-generating device according to claim 15, characterized in that, The second magnet has a first leakage hole, which is aligned with the third through hole; The second top plate is provided with a second drain hole, which is aligned with the first drain hole and connected to the second receiving groove.

17. The sound-generating device according to claim 11, characterized in that, The second vibration system includes: A second drive coil, the second drive coil being suspended in a second magnetic gap formed by the second magnetic circuit system; and The second diaphragm is connected to the top of the bracket and the top of the second drive coil.

18. The sound-generating device according to claim 17, characterized in that, The second vibration system also includes: The second dome is connected to the second drive coil and the second diaphragm respectively.

19. The sound-generating device according to claim 18, characterized in that, The second sphere has a fourth through hole.

20. The sound-generating device according to claim 19, characterized in that, The second dome is provided with a waterproof and breathable membrane, which covers the opening of the fourth through hole.

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