Vibration sounding device, vibration sounding module and electronic terminal

Abstract

The utility model discloses a vibration sounding device, a vibration sounding module and an electronic terminal, the vibration sounding device comprises a magnetic circuit system, a vibration sounding system and a vibration feedback system, the magnetic circuit system comprises a magnetic conductive yoke having a first side surface and a second side surface opposite to each other, and a magnetic circuit assembly arranged on the second side surface, the vibration sound production system is arranged on one side of the magnetic circuit system and is opposite to the magnetic circuit system, the vibration feedback system is arranged on the other side of the magnetic circuit system and comprises a second shell, a vibrator assembly and a limiting piece, and the vibrator assembly is provided with a limiting space extending in the second direction; the limiting piece is located in the limiting space and arranged at intervals with the two ends of the limiting space in the second direction, the magnetic circuit system and the vibration sound production system form a first assembly, and the vibration feedback system is inserted into the first assembly through the limiting piece and forms three-dimensional positioning with the first assembly. The vibration sounding device provided by the utility model has the advantages of high assembly precision and good comprehensive performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electroacoustic equipment, and in particular to a vibration sound-generating device, a vibration sound-generating module and an electronic terminal. Background Art

[0002] An electronic terminal, such as but not limited to a mobile phone, can realize an audio sound function and a vibration tactile feedback function through a vibration sound device. Specifically, the vibration sound device includes a magnetic circuit system, a vibration sound system, and a vibration feedback system. Driven by the magnetic circuit system, the vibration sound system realizes the audio sound function, and the vibration feedback system realizes the vibration tactile feedback function.

[0003] However, in the related art, a positioning structure is provided between the vibration sound-generating system and the vibration feedback system in the vibration sound-generating device, but the structural design of the above-mentioned positioning structure is not reasonable, and the effective positioning position of the positioning structure is very short, which affects the assembly between the vibration sound-generating system and the vibration feedback system, and the assembly accuracy is low. Utility Model Content

[0004] The main purpose of the utility model is to provide a vibration sound-generating device, aiming to improve the assembly accuracy of the vibration sound-generating device.

[0005] In order to achieve the above-mentioned purpose, the vibration sound-generating device proposed by the utility model comprises:

[0006] A magnetic circuit system, comprising a magnetic yoke having a first side surface and a second side surface opposite to each other, and a magnetic circuit component arranged on the second side surface;

[0007] a vibration sound-generating system, disposed on one side of the magnetic circuit system and opposite to the magnetic circuit system, the vibration sound-generating system comprising a diaphragm assembly, the diaphragm assembly vibrating along a first direction; and

[0008] A vibration feedback system is arranged on the other side of the magnetic circuit system and comprises a second housing, a vibrator assembly and a stopper;

[0009] The vibrator assembly is elastically connected to the second shell, and the vibrator assembly includes a driving coil. Along the first direction, the driving coil is arranged opposite to the magnetic circuit system, and the vibrator assembly vibrates along a second direction perpendicular to the first direction under the drive of the magnetic circuit system;

[0010] A limiting space is provided on the vibrator assembly, the limiting space extends along the second direction, the limiting member is located in the limiting space and is spaced apart from two ends of the limiting space in the second direction, and the limiting member is fixed to the second housing;

[0011] The magnetic circuit system and the vibration sound generating system form a first component. The vibration feedback system is inserted into the first component through the limiting member and forms a three-dimensional positioning with the first component.

[0012] The utility model also proposes a vibration sound-generating module, which includes a module shell and the aforementioned vibration sound-generating device, the module shell is provided with an installation cavity and a first sound cavity, one cavity opening of the first sound cavity is provided on the outer surface of the module shell, and the other cavity opening is connected to the installation cavity, the vibration sound-generating device is provided in the installation cavity, and the diaphragm assembly is arranged opposite to the first sound cavity.

[0013] The utility model also provides an electronic terminal, which comprises the aforementioned vibration sound-generating device.

[0014] In the technical solution of the utility model, the stopper is fixed to the second shell, the magnetic circuit system and the vibration sound generating system form a first component, and the vibration feedback system is inserted into the first component through the stopper and forms a three-dimensional positioning with the first component. In this way, the first component is accurately positioned relative to the vibration feedback system.

[0015] In addition, a limit space is provided on the vibrator assembly, the limit space extends along the second direction, and the limit member is located in the limit space and is spaced apart from the two ends of the limit space in the second direction. In this way, the limit member is also reused as a component for limiting the travel of the vibrator assembly. Specifically, when the limit member abuts against the two ends of the limit space in the second direction, the vibrator assembly reaches the limit position, so that the vibration amplitude of the vibration feedback system can be controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of the first embodiment of the vibration sound-generating device of the utility model;

[0018] Figure 2 for Figure 1 The structural diagram of the middle counterweight block;

[0019] Figure 3 for Figure 1 A schematic diagram of the structure of the middle limiter;

[0020] Figure 4 for Figure 1Schematic diagram of the structure of the center-conducting magnetic yoke;

[0021] Figure 5 for Figure 1 Schematic diagram of the structure of the middle magnetic circuit assembly;

[0022] Figure 6 for Figure 1 Schematic diagram of the structure of the midrange coil;

[0023] Figure 7 for Figure 1 An assembly drawing of the first housing, the magnetic circuit system, and the limiter;

[0024] Figure 8 for Figure 7 A schematic diagram of a structure in which a counterweight block is assembled on the basis of the structure in FIG.

[0025] Fig. 9 for Figure 1 Assembly drawing of the vibration sound generating device;

[0026] Fig.10 for Fig. 9 Middle AA section view;

[0027] Fig.11 for Fig. 9 A top view of the vibration sound-generating device;

[0028] Fig.12 for Fig.11 Middle BB section view;

[0029] Fig.13 It is an exploded view of the second embodiment of the vibration sound-generating device of the utility model;

[0030] Fig.14 for Fig.13 A schematic diagram of the structure of the middle side magnet, the first center magnet, and the second center magnet;

[0031] Fig.15 for Fig.13 Schematic diagram of the structure of the driving coil;

[0032] Fig.16 for Fig.13 The structural diagram of the middle counterweight block;

[0033] Fig.17 for Fig.13 Schematic diagram of the structure of the middle and side magnetic conductive plates;

[0034] Fig.18 for Fig.13 Schematic diagram of the structure of the central magnetic yoke and the limiter;

[0035] Fig.19 for Fig.13Assembly drawing of the middle part structure;

[0036] Fig. 20 for Fig.13 a cross-sectional view of the vibration sound-generating device, wherein the normal direction of the cross-sectional surface is the second direction;

[0037] Fig.21 for Fig.13 A cross-sectional view of a vibration sound-generating device, wherein the normal direction of the cross-sectional surface is the third direction, and the number of drivers of the vibration sound-generating device is one;

[0038] Fig. 22 for Fig.13 A cross-sectional view of a vibration sound-generating device, wherein the normal direction of the cross-sectional surface is a third direction, wherein the number of drivers of the vibration sound-generating device is multiple;

[0039] Fig.23 It is an exploded view of the third embodiment of the vibration sound-generating device of the utility model;

[0040] Fig.24 for Fig.23 Schematic diagram of the structure of the central magnetic yoke and the limiter;

[0041] Fig.25 for Fig.23 Assembly drawing of the middle part structure;

[0042] Fig.26 for Fig.23 a cross-sectional view of the vibration sound-generating device, wherein the normal direction of the cross-sectional surface is the second direction;

[0043] Fig. 27 This is a structural schematic diagram of the first embodiment of the vibration sound-generating module of the utility model;

[0044] Fig.28 for Fig. 27 Exploded view of the vibration sound module;

[0045] Fig.29 for Fig. 27 Middle CC section view;

[0046] Fig.30 It is a cross-sectional view of the second embodiment of the vibration sound-generating module of the utility model;

[0047] Fig.31 for Fig.30 An exploded view of the vibration sound module from one perspective;

[0048] Fig.32 for Fig.30 An exploded view of the vibration sound module from another perspective;

[0049] Fig.33It is a cross-sectional view of the third embodiment of the vibration sound-generating module of the present utility model.

[0050] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0052] 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 in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0053] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or abutment, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "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 technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. 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 utility model.

[0055] Reference Figures 1 to 33In the first embodiment of the present invention, the vibration sound-generating device 100 includes a magnetic circuit system 210 , a vibration sound-generating system 300 , and a vibration feedback system 400 .

[0056] The magnetic circuit system 210 includes a magnetic yoke 220 having a first side surface 221 and a second side surface 222 opposite to each other, and a magnetic circuit component 250 disposed on the second side surface 222 .

[0057] The vibration sound-generating system 300 is disposed on one side of the magnetic circuit system 210 and is disposed opposite to the magnetic circuit system 210. The vibration sound-generating system 300 includes a diaphragm assembly 310, and the diaphragm assembly 310 vibrates along a first direction (e.g., a vertical direction). In this way, under the drive of the magnetic circuit system 210, the diaphragm assembly 310 vibrates along the first direction, thereby realizing the audio sound-generating function of the vibration sound-generating device 100. That is, the vibration sound-generating system 300 and the magnetic circuit system 210 cooperate to form the sound-generating unit of the vibration sound-generating device 100.

[0058] The vibration feedback system 400 is disposed on the other side of the magnetic circuit system 210 , and includes a second housing 410 , a vibrator assembly 420 and a stopper 460 .

[0059] Among them, the vibrator assembly 420 is elastically connected to the second shell 410, and the vibrator assembly 420 includes a driving coil 450. Along the first direction, the driving coil 450 is arranged relative to the magnetic circuit system 210, and the vibrator assembly 420 vibrates along the second direction perpendicular to the first direction under the drive of the magnetic circuit system 210. In this way, the magnetic field of the magnetic circuit system 210 can also provide a driving force to the driving coil 450. Under the drive of the magnetic circuit system 210, the vibrator assembly 420 is realized by the driving coil 450 to vibrate relative to the second shell 410 in the second direction, so that the vibration sound-generating device 100 has a vibration feedback function. That is, the vibration feedback system 400 and the magnetic circuit system 210 cooperate to form the vibration unit of the vibration sound-generating device 100.

[0060] The stopper 460 is fixed to the second housing 410, the magnetic circuit system 210 and the vibration sound generating system 300 form a first assembly 800, and the vibration feedback system 400 is inserted into the first assembly 800 through the stopper 460, and forms a three-dimensional positioning with the first assembly 800. In this way, the first assembly 800 is accurately positioned relative to the vibration feedback system 400.

[0061] In addition, a limit space is provided on the vibrator assembly 420, and the limit space extends along the second direction. The limit member 460 is located in the limit space and is spaced apart from the two ends of the limit space in the second direction. In this way, the limit member 460 is also reused as a component for limiting the travel of the vibrator assembly 420. Specifically, when the limit member 460 abuts against the two ends of the limit space in the second direction, the vibrator assembly 420 reaches the limit position, so that the vibration amplitude of the vibration feedback system 400 can be controlled.

[0062] Optionally, in the first embodiment, the limiter 460 is embedded in a concave-convex arrangement with the edge of the magnetic yoke 220. "Embedded concave-convex arrangement" means that one of the edges of the limiter 460 and the magnetic yoke 220 is recessed into a concave portion and the other is convexly provided with a convex portion embedded in the concave portion, so that the limiter 460 has two different directions and the assembly positioning function with the magnetic yoke 220, and the two directions intersect with the first direction. Without loss of generality, the two directions can be the length direction and the width direction of the magnetic yoke 220, and the first direction is the thickness direction of the magnetic yoke 220. In this way, the limiter 460 realizes the positioning of the vibration feedback system 400 in the length, width and thickness directions of the magnetic yoke 220. In other embodiments, the magnetic yoke 220 is provided with a concave portion recessed along the first direction, and the limiter 460 is embedded in the concave portion.

[0063] There are many structural forms of the position-limiting member 460. Optionally, in the first embodiment, the position-limiting member 460 includes a first positioning portion 463 abutting against the edge of the magnetic yoke 220, and a second positioning portion 465 connected to the first positioning portion 463. The edge of the magnetic yoke 220 is provided with a positioning notch 243 corresponding to the second positioning portion 465, and the second positioning portion 465 is adapted to be embedded in the positioning notch 243. Without loss of generality, taking the edge abutted by the first positioning portion 463 as being along the length direction of the magnetic yoke 220, and the notch edge where the positioning notch 243 and the second positioning portion 465 cooperate is along the width direction of the magnetic yoke 220 as an example, the position-limiting member 460 realizes the positioning of the vibration feedback system 400 in the length direction and the width direction of the magnetic yoke 220. However, the present design is not limited thereto. In other embodiments, the position-limiting member 460 can also be in other structural forms, as long as it can be embedded in the concave and convex of the magnetic yoke 220.

[0064] Further, in the first embodiment, the second positioning portion 465 is disposed at the end of the first positioning portion 463 . However, the present design is not limited thereto, and the second positioning portion 465 is disposed at the middle of the first positioning portion 463 .

[0065] Further, in the first embodiment, second positioning portions 465 are provided at opposite ends of the first positioning portion 463. In this way, in the extension direction of the first positioning portion 463, the two second positioning portions 465 can restrict each other from escaping from the corresponding positioning notches 243. In this way, it is beneficial to maintain the positioning stability of the vibration feedback system 400 and the magnetic circuit system 210. Of course, it is understandable that multiple (more than two) second positioning portions 465 can be provided in the extension direction of the first positioning portion 463, and the edge of the magnetic yoke 220 is provided with positioning notches 243 corresponding to the multiple second positioning portions 465.

[0066] Optionally, the first positioning portion 463 is bonded or welded to the side wall of the second shell 410. In this way, the connection stability between the limiter 460 and the second shell 410 is improved. In this way, even if the vibration sound-generating device 100 falls accidentally, the relative position of the limiter 460 and the second shell 410 is difficult to change, which effectively avoids the positioning failure of the vibration feedback system 400 relative to the magnetic circuit system 210. The gluing method is conducive to quickly connecting the first positioning portion 463 and the second shell 410, while the welding method is conducive to making the connection stability of the first positioning portion 463 and the second shell 410 higher.

[0067] Optionally, in the first embodiment, the vibration sound-generating system 300 includes a first shell 330 fixed to the magnetic circuit system 210, the outer periphery of the diaphragm assembly 310 is fixed to the first shell 330, and the stopper 460 abuts against the first shell 330 in the first direction. In this way, the stopper 460 realizes the positioning of the vibration feedback system 400 relative to the magnetic yoke 220 in the first direction. In other embodiments, the stopper 460 can also abut against other components of the vibration sound-generating system 300 in the first direction, which is not limited here.

[0068] There are many optional positions of the first shell 330 for the limit member 460 to abut. Optionally, in the first embodiment, the first shell 330 has a first end face fixed to an end of the magnetic circuit assembly 250 away from the magnetic yoke 220, and the second positioning portion 465 abuts against the first end face.

[0069] Optionally, in the first embodiment, the first housing 330 is made of metal to provide good support for the stopper 460. Of course, the first housing 330 can also be formed of a plastic material, and the first housing 330 can be integrally injection molded with a portion of the magnetic circuit system 210.

[0070] Optionally, in the first embodiment, the magnetic yoke 220 has a first edge 241 and a second edge 242 opposite to each other, and the vibration feedback system 400 is provided with a stopper 460 corresponding to the first edge 241 and the second edge 242. The stopper 460 that is embedded in a concave-convex manner with the first edge 241 is defined as the first stopper, and the stopper 460 that is embedded in a concave-convex manner with the second edge 242 is defined as the second stopper. Since the first edge 241 and the second edge 242 are disposed relatively to each other, the second stopper can limit the movement of the magnetic yoke 220 from the first edge 241 to the second edge 242, thereby preventing the first stopper from being separated from the first edge 241, and the first stopper can limit the movement of the magnetic yoke 220 from the second edge 242 to the first edge 241, thereby preventing the second stopper from being separated from the second edge 242. In this way, it is beneficial to maintain the positioning stability of the vibration feedback system 400 and the magnetic circuit system 210. Without loss of generality, the first edge 241 and the second edge 242 are disposed opposite to each other in the width direction of the magnetic yoke 220 .

[0071] Optionally, in the first embodiment, the vibrator assembly 420 further includes a counterweight 430, the driving coil 450 is disposed on the counterweight 430, the vibration feedback system 400 vibrates along a second direction perpendicular to the first direction, and a limiting hole 431 corresponding to the limiting member 460 is provided on the counterweight 430, the limiting hole 431 extends along the second direction, and the limiting member 460 is located in the limiting hole 431 and is spaced apart from both ends of the second direction of the limiting hole 431. In this way, the limiting member 460 not only realizes positioning for the second shell 410, but is also reused as a component for limiting the travel of the counterweight 430. Specifically, when the limiting member 460 abuts against both ends of the limiting hole 431 in the second direction, the counterweight 430 reaches the limit position, so that the vibration amplitude of the vibration feedback system 400 can be controlled. Without loss of generality, this article introduces the second direction as the length direction of the magnetic yoke 220. However, the present design is not limited thereto. In other embodiments, in the second direction, the counterweight block 430 is provided with stoppers 460 on both opposite sides thereof, and the counterweight block 430 is opposite to the stoppers 460 and spaced apart from each other in the second direction.

[0072] There are many ways to realize the elastic connection between the vibrator assembly 420 and the second housing 410. Optionally, in the first embodiment, the vibration feedback system 400 further includes an elastic connector 440, and the two ends of the elastic connector 440 are respectively connected to the second housing 410 and the counterweight 430 to suspend the vibrator assembly 420 in the second housing 410. However, the present design is not limited thereto. In other embodiments, the two ends of the elastic connector 440 are respectively connected to the magnetic yoke 220 and the counterweight 430 to suspend the vibrator assembly 420 in the second housing 410; or, the counterweight 430 is elastic.

[0073] Specifically, in one embodiment, the counterweight block 430 includes a connecting plate 433 and a counterweight body 432 connected to the connecting plate 433. The connecting plate 433 and the counterweight body 432 can be connected together by but not limited to welding or bonding. The connecting plate 433 is provided with the aforementioned limiting hole 431, and the connecting plate 433 is connected to the second shell 410 through an elastic connecting member 440.

[0074] Optionally, in the first embodiment, the magnetic circuit assembly 250 includes a central magnetic portion 260 and a side magnetic portion 270, the vibration sound generating system 300 also includes a voice coil 320 disposed on the diaphragm assembly 310, the central magnetic portion 260 and the side magnetic portion 270 are spaced apart to form a magnetic gap 280 corresponding to an end of the voice coil 320 away from the diaphragm assembly 310, and the driving coil 450 includes two first connecting edges 451 disposed opposite to each other, and along the first direction, the two first connecting edges 451 are disposed opposite to the central magnetic portion 260 and the side magnetic portion 270, respectively. In this way, the driving coil 450 can move to cut the magnetic flux lines between the central magnetic portion 260 and the side magnetic portion 270, thereby driving the vibrator assembly 420 to vibrate back and forth, and realizing the vibration feedback system 400 to generate a vibration effect.

[0075] However, the present design is not limited thereto. In other embodiments, Fig.12 As shown, the magnetic circuit assembly 250 includes a central magnetic portion 260 and a side magnetic portion 270, the central magnetic portion 260 and the side magnetic portion 270 are spaced apart to form a magnetic gap 280 corresponding to the voice coil 320, the driving coil 450 includes two first connecting edges 451 arranged opposite to each other, the central magnetic portion 260 includes a plurality of first central magnets 261 spaced apart along a second direction, the vibration feedback system 400 vibrates along a second direction perpendicular to the first direction, and along the first direction, the two first connecting edges 451 are respectively arranged opposite to the two adjacent first central magnets 261. In this way, the driving coil 450 can cut the magnetic flux lines between the two adjacent first central magnets 261, thereby driving the vibrator assembly 420 to vibrate back and forth, and realizing the vibration effect of the vibration feedback system 400. In the first embodiment, the first connecting edge 451 serves as the long side of the driving coil 450.

[0076] It is worth mentioning that in the first embodiment, if Figure 5 As shown, the central magnetic part 260 also includes a plurality of second central magnets 262 spaced apart along a third direction, wherein the third direction is perpendicular to the first direction and the second direction respectively. In the third direction, a first central magnet 261 is disposed between two adjacent second central magnets 262. Without loss of generality, this article introduces the third direction as the width direction of the magnetic yoke 220.

[0077] Optionally, in the first embodiment, the magnetic yoke 220 includes a main body 230 and a hollow hole 231 provided on the main body 230, and the side magnetic part 270 and the central magnetic part 260 are provided on the main body 230. Along the first direction, at least part of the driving coil 450 is opposite to the hollow hole 231. By providing the hollow hole 231 on the main body 230, the hollow hole 231 can be opposite to part of the driving coil 450 or the entire driving coil 450, thereby ensuring that the magnetic flux lines pass through the magnetic yoke 220 smoothly, and the magnetic field strength acting on the driving coil 450 can be increased, so as to ensure the vibration effect of the vibration feedback system 400. It is worth mentioning that in the first embodiment, the magnetic yoke 220 also includes a plurality of protrusions 240 provided on the edge of the main body 230, and the edge of the protrusion 240 is matched with the edge of the positioning part in a concave-convex arrangement.

[0078] Optionally, in the first embodiment, the driving coil 450 is one or more, and when the driving coil 450 is multiple, the multiple driving coils 450 are spaced and distributed along the second direction. When the driving coil 450 is one, while meeting the vibration sense requirements of the vibration sound-generating device 100, it is beneficial to save the manufacturing cost of the vibration sound-generating device 100. When the driving coil 450 is multiple, it is beneficial to improve the vibration effect of the vibration feedback system 400. Further, in the first embodiment, the driving coil 450 is multiple, the hollow hole 231 is one, and the hollow hole 231 is arranged corresponding to the multiple driving coils 450, thereby simplifying the processing procedure of the hollow hole 231 and improving the processing efficiency. Optionally, the driving coil 450 is multiple, and the hollow hole 231 is also arranged in multiples, and the multiple hollow holes 231 are arranged one by one with the multiple driving coils 450, thereby relatively reducing the opening area of ​​the magnetic yoke 220, so that not only the structural strength of the magnetic yoke 220 can be improved, but also the magnetic focusing effect of the magnetic yoke 220 can be improved.

[0079] Optionally, in the first embodiment, the diaphragm assembly 310 includes a diaphragm 311 disposed on the first shell 330 , a dome 312 disposed on the diaphragm 311 , and a washer 313 disposed on the magnetic circuit assembly 250 and opposite to the dome 312 in a first direction, and the voice coil 320 is connected to the dome 312 .

[0080] Refer to Figures 13 to 22 The present utility model also includes a second embodiment. The same parts of the second embodiment as those of the first embodiment can refer to the first embodiment and will not be described in detail herein.

[0081] Optionally, in the second embodiment, the limiter 460 includes a supporting portion 461 and a positioning portion 462 connected to each other, the supporting portion 461 is fixed to the second shell 410, and the supporting portion 461 has a supporting surface abutting against the first side surface 221. In this way, the limiter 460 has the function of assembling and positioning with the magnetic yoke 220 in the first direction. The positioning portion 462 is matched with the concave and convex arrangement of the magnetic yoke 220. "Concave and convex arrangement matching" means that one of the positioning portion 462 and the magnetic yoke 220 is recessed into a concave portion and the other is convexly provided with a convex portion embedded in the concave portion, so that the limiter 460 has the function of assembling and positioning with the magnetic yoke 220 in two different directions, and the two directions intersect with the first direction. Without loss of generality, the two directions can be the length direction and the width direction of the magnetic yoke 220, and the first direction is the thickness direction of the magnetic yoke 220. In this way, the concave and convex fit of the positioning portion 462 and the magnetic yoke 220 makes the assembly between the vibration sound-generating system 300 and the vibration feedback system 400 simpler, and the limit member 460 realizes the three-dimensional positioning of the vibration feedback system 400 and the magnetic yoke 220, thereby improving the assembly accuracy of the vibration sound-generating device 100.

[0082] There are many types of structural forms for the concave-convex arrangement of the positioning portion 462 and the magnetic yoke 220. Optionally, in the second embodiment, the positioning portion 462 is configured as a first positioning protrusion 466 provided on the support surface, and the magnetic yoke 220 is provided with a first positioning notch 244 corresponding to the first positioning protrusion 466, and the first positioning protrusion 466 is adapted to be embedded in the first positioning notch 244. In this way, the matching structure between the magnetic yoke 220 and the stopper 460 can be made simpler and the assembly can be more convenient. It can be understood that the first positioning notch 244 is provided at the edge of the magnetic yoke 220.

[0083] Optionally, in the second embodiment, the first positioning notch 244 is disposed at the outer edge of the magnetic yoke 220. Of course, in other embodiments, the magnetic yoke 220 has a hole, and the first positioning notch 244 is disposed at the periphery of the hole, that is, at the inner edge of the magnetic yoke 220.

[0084] Further, in the second embodiment, the first positioning notch 244 has two first notch edges 510 arranged opposite to each other, and a second notch edge 520 connecting the two first notch edges 510, the first notch edge 510 extends in the width direction of the magnetic yoke 220, the second notch edge 520 extends in the length direction of the magnetic yoke 220, and both the first notch edge 510 and the second notch edge 520 are used to cooperate with the first positioning protrusion 466. However, the present design is not limited thereto, and in other embodiments, the first notch edge 510 extends in the length direction of the magnetic yoke 220, and the second notch edge 520 extends in the width direction of the magnetic yoke 220.

[0085] In order to reduce the possibility of positioning failure of the vibration feedback system 400 relative to the magnetic circuit system 210, optionally, in the second embodiment, the end surface of the first positioning protrusion 466 that is away from the support portion 461 is fixed to the magnetic circuit assembly 250. In this way, the connection stability between the stopper 460 and the magnetic circuit system 210 is improved, thereby improving the connection stability between the vibration feedback system 400 and the magnetic circuit system 210. In this way, even if the vibration sound-generating device 100 accidentally falls, the relative position of the vibration feedback system 400 and the magnetic circuit system 210 is difficult to change, effectively avoiding the positioning failure of the vibration feedback system 400 relative to the magnetic circuit system 210.

[0086] In order to reduce the possibility of failure in positioning the vibration feedback system 400 relative to the magnetic circuit system 210, optionally, in the second embodiment, the support surface is fixed to the first side surface 221. In this way, the connection stability between the stopper 460 and the magnetic circuit system 210 is improved, thereby improving the connection stability between the vibration feedback system 400 and the magnetic circuit system 210. In this way, even if the vibration sound-generating device 100 falls accidentally, the relative position of the vibration feedback system 400 and the magnetic circuit system 210 is difficult to change, effectively avoiding the failure of positioning the vibration feedback system 400 relative to the magnetic circuit system 210.

[0087] In order to improve the connection stability between the limiter 460 and the magnetic circuit system 210, optionally, in the second embodiment, the limiter 460 is welded or glued to the magnetic yoke 220. In this way, the connection stability between the limiter 460 and the magnetic circuit system 210 is improved, thereby improving the connection stability between the vibration feedback system 400 and the magnetic circuit system 210. In this way, even if the vibration sound-generating device 100 falls accidentally, the relative position of the vibration feedback system 400 and the magnetic circuit system 210 is difficult to change, effectively avoiding the positioning failure of the vibration feedback system 400 relative to the magnetic circuit system 210. The gluing method is conducive to quickly connecting the limiter 460 and the magnetic yoke 220, while the welding method is conducive to making the connection stability between the limiter 460 and the magnetic yoke 220 higher. Further, in the second embodiment, the support surface is welded or glued to the first side surface 221.

[0088] In order to improve the connection stability between the stopper 460 and the magnetic circuit system 210, optionally, in the second embodiment, the stopper 460 is welded or glued to the magnetic circuit assembly 250. In this way, the connection stability between the stopper 460 and the magnetic circuit system 210 is improved, thereby improving the connection stability between the vibration feedback system 400 and the magnetic circuit system 210. In this way, even if the vibration sound-generating device 100 falls accidentally, the relative position of the vibration feedback system 400 and the magnetic circuit system 210 is difficult to change, effectively avoiding the positioning failure of the vibration feedback system 400 relative to the magnetic circuit system 210. The gluing method is conducive to quickly connecting the stopper 460 and the magnetic circuit assembly 250, while the welding method is conducive to making the connection stability between the stopper 460 and the magnetic circuit assembly 250 higher. Furthermore, in the second embodiment, the magnetic circuit assembly 250 includes the central magnetic portion 260 and the edge magnetic portion 270 mentioned later, and the end surface of the first positioning protrusion 466 facing away from the support portion 461 is welded or adhesively connected to the central magnetic portion 260 and / or the edge magnetic portion 270 in the magnetic circuit assembly 250.

[0089] Refer to Fig.16 Optionally, in the second embodiment, the vibrator assembly 420 further includes a counterweight 430, the driving coil 450 is disposed on the counterweight 430, the vibration feedback system 400 vibrates along a second direction perpendicular to the first direction, the counterweight 430 is provided with a limiting hole 431 corresponding to the limiting member 460, the limiting hole 431 extends along the second direction, and the support portion 461 is located in the limiting hole 431 and is spaced apart from both ends of the limiting hole 431 in the second direction. In this way, the support portion 461 not only realizes positioning for the second shell 410, but is also reused as a component for limiting the travel of the counterweight 430. Specifically, when the support portion 461 abuts against both ends of the limiting hole 431 in the second direction, the counterweight 430 reaches the limit position, so that the vibration amplitude of the vibration feedback system 400 can be controlled. Without loss of generality, this article introduces the second direction as the length direction of the magnetic yoke 220. However, the present design is not limited thereto. In other embodiments, in the second direction, the counterweight block 430 is provided with stoppers 460 on both opposite sides thereof, and the counterweight block 430 is opposite to the stoppers 460 and spaced apart from each other in the second direction.

[0090] There are many ways to realize the elastic connection between the vibrator assembly 420 and the second housing 410. Optionally, in the second embodiment, the vibration feedback system 400 further includes an elastic connector 440, and the two ends of the elastic connector 440 are respectively connected to the second housing 410 and the counterweight 430 to suspend the vibrator assembly 420 in the second housing 410. However, the present design is not limited thereto. In other embodiments, the two ends of the elastic connector 440 are respectively connected to the magnetic yoke 220 and the counterweight 430 to suspend the vibrator assembly 420 in the second housing 410; or, the counterweight 430 is elastic.

[0091] Optionally, in the second embodiment, the magnetic yoke 220 has a first edge 241 and a second edge 242 opposite to each other, and the vibration feedback system 400 is provided with a stopper 460 corresponding to the first edge 241 and the second edge 242. It can be understood that the first edge 241 and the second edge 242 are both edges of the magnetic yoke 220. The stopper 460 that is embedded in a concave-convex manner with the first edge 241 is defined as the first stopper, and the stopper 460 that is embedded in a concave-convex manner with the second edge 242 is defined as the second stopper. Since the first edge 241 and the second edge 242 are arranged relative to each other, the second stopper can limit the movement of the magnetic yoke 220 from the first edge 241 to the second edge 242, thereby preventing the first stopper from being separated from the first edge 241, and the first stopper can limit the movement of the magnetic yoke 220 from the second edge 242 to the first edge 241, thereby preventing the second stopper from being separated from the second edge 242. In this way, it is beneficial to maintain the positioning stability of the vibration feedback system 400 and the magnetic circuit system 210. Without loss of generality, the first edge 241 and the second edge 242 are disposed opposite to each other in the width direction of the magnetic yoke 220 .

[0092] Refer to Fig.14 and 15 Optionally, in the second embodiment, the magnetic circuit assembly 250 includes a central magnetic portion 260 and a side magnetic portion 270, the central magnetic portion 260 and the side magnetic portion 270 are spaced apart to form a magnetic gap 280 corresponding to the voice coil 320, and the driving coil 450 includes two first connecting edges 451 arranged opposite to each other, and along the first direction, the two first connecting edges 451 are arranged opposite to the central magnetic portion 260 and the side magnetic portion 270, respectively. In this way, the driving coil 450 can move to cut the magnetic flux lines between the central magnetic portion 260 and the side magnetic portion 270, thereby driving the vibrator assembly 420 to vibrate back and forth, and realizing the vibration feedback system 400 to generate a vibration effect.

[0093] However, the present design is not limited thereto. In other embodiments, the magnetic circuit assembly 250 includes a central magnetic portion 260 and a side magnetic portion 270. The central magnetic portion 260 and the side magnetic portion 270 are spaced apart to form a magnetic gap 280 corresponding to the voice coil 320. The driving coil 450 includes two first connecting edges 451 arranged opposite to each other. The central magnetic portion 260 includes a plurality of first central magnets 261 spaced apart along a second direction. The vibration feedback system 400 vibrates along a second direction perpendicular to the first direction. Along the first direction, the two first connecting edges 451 are respectively arranged opposite to the two adjacent first central magnets 261. In this way, the driving coil 450 can cut the magnetic flux lines between the two adjacent first central magnets 261, thereby driving the vibrator assembly 420 to vibrate back and forth, thereby achieving the effect of generating vibration induction of the vibration feedback system 400. In the second embodiment, the first connecting edge 451 can be used as the long side of the driving coil 450.

[0094] It is worth mentioning that in the second embodiment, the central magnetic portion 260 further includes a plurality of second central magnets 262 spaced apart along a third direction, wherein the third direction is perpendicular to the first direction and the second direction respectively. In the third direction, a first central magnet 261 is disposed between two adjacent second central magnets 262. Without loss of generality, this article introduces the third direction as the width direction of the magnetic yoke 220.

[0095] Optionally, in the second embodiment, the magnetic yoke 220 includes a main body 230 and a hollow hole 231 provided on the main body 230, and the side magnetic part 270 and the central magnetic part 260 are provided on the main body 230. Along the first direction, at least part of the driving coil 450 is opposite to the hollow hole 231. By providing the hollow hole 231 on the main body 230, the hollow hole 231 can be opposite to part of the driving coil 450 or the entire driving coil 450, thereby ensuring that the magnetic flux lines pass through the magnetic yoke 220 smoothly, and the magnetic field strength acting on the driving coil 450 can be increased, so as to ensure the vibration effect of the vibration feedback system 400. It is worth mentioning that in the second embodiment, the magnetic yoke 220 also includes a plurality of protrusions 240 provided on the edge of the main body 230, and the edge of the protrusion 240 is matched with the edge of the positioning part 462 in a concave-convex arrangement.

[0096] Optionally, in the second embodiment, the driving coil 450 is one or more, and when the driving coil 450 is multiple, the multiple driving coils 450 are spaced and distributed along the second direction. When the driving coil 450 is one, while meeting the vibration sense requirements of the vibration sound-generating device 100, it is beneficial to save the manufacturing cost of the vibration sound-generating device 100. When the driving coil 450 is multiple, it is beneficial to improve the vibration effect of the vibration feedback system 400. Further, in the second embodiment, the driving coil 450 is multiple, the hollow hole 231 is one, and the hollow hole 231 is arranged corresponding to the multiple driving coils 450, thereby simplifying the processing procedure of the hollow hole 231 and improving the processing efficiency. Optionally, the driving coil 450 is multiple, and the hollow hole 231 is also arranged in multiples, and the multiple hollow holes 231 are arranged one by one with the multiple driving coils 450, thereby relatively reducing the opening area of ​​the magnetic yoke 220, so that not only the structural strength of the magnetic yoke 220 can be improved, but also the magnetic focusing effect of the magnetic yoke 220 can be improved.

[0097] Refer to Fig.17Optionally, in the second embodiment, the magnetic circuit assembly 250 includes a central magnetic portion 260 and a side magnetic portion 270, the central magnetic portion 260 and the side magnetic portion 270 are spaced apart to form a magnetic gap 280 corresponding to the voice coil 320, the side magnetic portion 270 includes a side magnet 271 disposed on the magnetic yoke 220 and a side magnetic conductive plate 272 disposed on the side of the side magnet 271 facing away from the magnetic yoke 220, a portion of the side magnetic conductive plate 272 extends along the first direction to form a mounting portion 273, the outer peripheral edge of the diaphragm assembly 310 is fixed to the mounting portion 273, and the outer peripheral wall of the second housing 410 is flush with the outer peripheral wall of the side magnetic conductive plate 272. In this way, the side magnetic conductive plate 272 not only plays a magnetic conductive role, but also provides installation for the diaphragm assembly 310, which is conducive to streamlining the vibration sound-generating device 100. Moreover, the outer peripheral wall of the second shell 410 is arranged flush with the outer peripheral wall of the side magnetic conductive plate 272, thereby making the overall structure of the vibration sound-generating device 100 more compact and easier to assemble.

[0098] Furthermore, in the second embodiment, the diaphragm assembly 310 includes a diaphragm 311 , a dome 312 disposed on the diaphragm 311 , and a washer 313 opposite to the dome 312 in the first direction. The washer 313 is disposed on the magnetic circuit assembly 250 , and the outer periphery of the diaphragm 311 is fixed to the mounting portion 273 .

[0099] Refer to Figures 23 to 26 The present utility model also includes a third embodiment. The similarities between the third embodiment and the first and second embodiments can be found in the above text and will not be described in detail here.

[0100] There are many types of structural forms in which the positioning portion 462 is embedded with the edge of the magnetic yoke 220 in a concave-convex manner. Optionally, in the third embodiment, the positioning portion 462 includes a rim portion 464 connected to the edge of the support surface, and a second positioning convex portion 465 connected to the rim portion 464. The rim portion 464 covers at least part of the edge of the magnetic yoke 220. The edge of the magnetic yoke 220 is provided with a second positioning notch 245 corresponding to the second positioning convex portion 465. The second positioning convex portion 465 is adapted to be embedded in the second positioning notch 245. Further, in the third embodiment, the rim portion 464 is connected to the support portion 461. Of course, in other embodiments, the support portion 461 can also be connected to the second positioning convex portion 465.

[0101] Optionally, in the third embodiment, at least one end of the edge portion 464 protrudes toward the direction close to the magnetic yoke 220 to form a second positioning protrusion 465. Further, both ends of the edge portion 464 are provided with a second positioning protrusion 465.

[0102] Optionally, in the third embodiment, the surface of the edging portion 464 that faces away from the edge of the magnetic yoke 220 abuts against the second housing 410. In this way, the connection stability between the stopper 460 and the second housing 410 is improved. In this way, even if the vibration sound-generating device 100 accidentally falls, the relative position of the vibration feedback system 400 and the magnetic circuit system 210 is difficult to change, effectively avoiding the failure of the vibration feedback system 400 to position the magnetic circuit system 210.

[0103] Optionally, in the third embodiment, the edging portion 464 is fixed to the edge of the magnetic yoke 220. In this way, the connection stability between the stopper 460 and the magnetic circuit system 210 is improved, thereby improving the connection stability between the vibration feedback system 400 and the magnetic circuit system 210. In this way, even if the vibration sound-generating device 100 accidentally falls, the relative position of the vibration feedback system 400 and the magnetic circuit system 210 is difficult to change, effectively avoiding the failure of the vibration feedback system 400 to position the magnetic circuit system 210.

[0104] Optionally, in the third embodiment, the support surface is fixed to the first side surface 221. In this way, the connection stability between the stopper 460 and the magnetic circuit system 210 is improved, thereby improving the connection stability between the vibration feedback system 400 and the magnetic circuit system 210. In this way, even if the vibration sound-generating device 100 falls accidentally, the relative position of the vibration feedback system 400 and the magnetic circuit system 210 is difficult to change, effectively avoiding the failure of the positioning of the vibration feedback system 400 relative to the magnetic circuit system 210.

[0105] Optionally, in the third embodiment, the edging portion 464 is welded or glued to the magnetic yoke 220. In this way, the connection stability between the limiter 460 and the magnetic circuit system 210 is improved, thereby improving the connection stability between the vibration feedback system 400 and the magnetic circuit system 210. In this way, even if the vibration sound-generating device 100 falls accidentally, the relative position of the vibration feedback system 400 and the magnetic circuit system 210 is difficult to change, effectively avoiding the failure of the vibration feedback system 400 to position relative to the magnetic circuit system 210. The gluing method is conducive to quickly connecting the limiter 460 and the magnetic yoke 220, while the welding method is conducive to making the connection stability between the limiter 460 and the magnetic yoke 220 higher.

[0106] Refer to Figures 27 to 33The utility model also proposes a vibration sound module 600, which includes a module housing 700 and the aforementioned vibration sound device 100. The specific structure of the vibration sound device 100 refers to the above embodiment. Since the vibration sound module 600 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the module housing 700 is provided with an installation cavity 710 and a first sound cavity 720, one cavity opening of the first sound cavity 720 is arranged on the outer surface of the module housing 700, and the other cavity opening is connected to the installation cavity 710. The vibration sound device 100 is arranged in the installation cavity 710, and the diaphragm assembly 310 is arranged opposite to the first sound cavity 720. In this way, the sound emitted by the vibration of the diaphragm assembly 310 can be easily transmitted from the first sound cavity 720 to the outside of the module housing 700, so that the vibration sound module 600 has a better sound effect.

[0107] Optionally, in the first, second and third embodiments, a supporting bottom wall 711 is provided at the connection between the installation cavity 710 and the first sound cavity 720, the vibration sound system 300 of the vibration sound-generating device 100 abuts against the supporting bottom wall 711, the module housing 700 is further provided with a second sound cavity 730 at least partially surrounding the installation cavity 710, and the first shell 410 is provided with a sound outlet hole connected to the second sound cavity 730. In this way, the sound emitted by the vibration sound-generating device 100 can enter the first sound cavity 720 and the second sound cavity 730 respectively, and the first sound cavity 720 and the second sound cavity 730 are conducive to improving the sound effect of the vibration sound-generating device 100. Figures 27 to 33 As shown, the vibration sound generating system 300 includes a diaphragm assembly 310, and a diaphragm 311 of the diaphragm assembly 310 abuts against a supporting bottom wall 711. It can be understood that Figures 27 to 33 The structure shown is merely exemplary, and the vibration sound-generating system 300 may also be abutted against the supporting bottom wall 711 by other structures of the diaphragm assembly 310, which is not limited here. In other embodiments, the mounting cavity 710 is connected to the inner circumference of the vibration sound-generating system 300 to achieve the installation of the sound-generating device in the mounting cavity 710. In addition, if the sound transmission effect of the first sound cavity 720 is better, the module housing 700 may not be provided with the second sound cavity 730 to save production costs; or, the vibration sound-generating device 100 abuts against the supporting bottom wall 711 through the side magnetic plate 272 or the first shell 330.

[0108] Optionally, in the first, second and third embodiments, the support bottom wall 711 and the vibration sound system 300 are connected by fixing glue. In this way, the support bottom wall 711 and the vibration sound system 300 are connected more stably and are not easy to separate from each other. In addition, it is also beneficial to improve the connection efficiency of the support bottom wall 711 and the vibration sound system 300.

[0109] Optionally, in the first, second and third embodiments, the supporting bottom wall 711 and the vibration sound-generating system 300 are connected by fixing glue, and the inner circumference of the mounting cavity 710 is connected to the vibration sound-generating device 100 by fixing glue. In this way, the supporting bottom wall 711 and the vibration sound-generating system 300 can be connected by fixing glue first to realize the pre-fixation of the vibration sound-generating system 300 and the supporting bottom wall 711, so that the inner circumference of the mounting cavity 710 can be connected to the vibration sound-generating device 100 by fixing glue later.

[0110] like Figures 27 to 33 As shown, the diaphragm 311 of the vibration sound generating system 300 is connected to the supporting bottom wall 711 by fixing glue. Figures 27 to 33 The structure shown is only exemplary, and the vibration sound system 300 can also be connected to the support bottom wall 711 by fixing glue through other structures of the diaphragm assembly 310. Of course, in other embodiments, the support bottom wall 711 and the vibration sound system 300 are connected by ultrasonic welding.

[0111] Optionally, in the first, second and third embodiments, the inner circumference of the installation cavity 710 is connected to the vibration sound-generating device 100 by fixing glue. In this way, the inner circumference of the installation cavity 710 and the vibration sound-generating system 300 are connected more stably and are not easy to be separated from each other.

[0112] like Figures 27 to 33 As shown, the diaphragm 311 of the vibration sound generating system 300 is connected to the inner circumference of the mounting cavity 710 by means of fixing glue. Figures 27 to 33 The structure shown is only exemplary, and the vibration sound system 300 can also be connected to the inner circumference of the installation cavity 710 by other structures of the diaphragm assembly 310 through fixing glue. Of course, in other embodiments, the inner circumference of the installation cavity 710 and the vibration sound system 300 are connected by ultrasonic welding.

[0113] The module housing 700 may have various structural forms. Optionally, in the first, second and third embodiments, the module housing 700 includes a housing body 740 and a cover body 750 that together with the housing body 740 encloses an installation cavity 710 and a second acoustic cavity 730 .

[0114] In other embodiments, the shell body 740 is provided with a second acoustic cavity 730 , the cover body 750 and the shell body 740 enclose a mounting cavity 710 , and the cover body 750 and the shell body 740 are connected by ultrasonic welding.

[0115] Optionally, in the second and third embodiments, the shell body 740 and the cover body 750 also jointly define a relief opening 760 communicating with the installation cavity 710, and the first shell 410 extends into the relief opening 760. This is conducive to miniaturization and lightness of the vibration sound module 600.

[0116] The utility model also provides an electronic terminal, which includes a vibration sound-generating device 100 or a vibration sound-generating module 600. The specific structures of the vibration sound-generating device 100 and the vibration sound-generating module 600 refer to the above embodiments. Since the electronic terminal adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. The electronic terminal can be configured as a mobile phone but is not limited to it.

[0117] The above description is only an optional embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A vibration sound-generating device, characterized in that: include: A magnetic circuit system, comprising a magnetic yoke having a first side surface and a second side surface opposite to each other, and a magnetic circuit component arranged on the second side surface; a vibration sound-generating system, disposed on one side of the magnetic circuit system and opposite to the magnetic circuit system, the vibration sound-generating system comprising a diaphragm assembly, the diaphragm assembly vibrating along a first direction; and A vibration feedback system is arranged on the other side of the magnetic circuit system and comprises a second housing, a vibrator assembly and a stopper; The vibrator assembly is elastically connected to the second shell, and the vibrator assembly includes a driving coil. Along the first direction, the driving coil is arranged opposite to the magnetic circuit system, and the vibrator assembly vibrates along a second direction perpendicular to the first direction under the drive of the magnetic circuit system; A limiting space is provided on the vibrator assembly, the limiting space extends along the second direction, the limiting member is located in the limiting space and is spaced apart from two ends of the limiting space in the second direction, and the limiting member is fixed to the second housing; The magnetic circuit system and the vibration sound generating system form a first component. The vibration feedback system is inserted into the first component through the limiting member and forms a three-dimensional positioning with the first component.

2. The vibration sound-generating device according to claim 1, characterized in that: The limiting member is matched with the edge of the magnetic yoke in a concave-convex manner.

3. The vibration sound-generating device according to claim 2, characterized in that: The limiting member includes a first positioning portion abutting against the edge of the magnetic yoke, and a second positioning portion connected to the first positioning portion. The edge of the magnetic yoke is provided with a positioning notch corresponding to the second positioning portion, and the second positioning portion is adapted to be embedded in the positioning notch.

4. The vibration sound-generating device according to claim 3, characterized in that: The second positioning portion is disposed at an end portion of the first positioning portion; and / or, the second positioning portions are provided at opposite ends of the first positioning portion; And / or, the first positioning portion is fixed to the side wall of the second shell by bonding or welding.

5. The vibration sound-generating device according to claim 3, characterized in that: The vibration sound generating system comprises a first shell fixed to the magnetic circuit system, the outer periphery of the diaphragm assembly is fixed to the first shell, and the limiting member abuts against the first shell in the first direction.

6. The vibration sound-generating device according to claim 1, characterized in that: The position-limiting member comprises a supporting portion and a positioning portion connected to each other. The supporting portion is fixed to the second shell and has a supporting surface abutting against the first side surface. The positioning portion is concave-convexly embedded in the magnetic yoke.

7. The vibration sound-generating device according to claim 6, characterized in that: The positioning portion is configured as a first positioning protrusion arranged on the supporting surface, and a first positioning notch is arranged on the magnetic yoke corresponding to the first positioning protrusion, and the first positioning protrusion is adapted to be embedded in the first positioning notch.

8. The vibration sound-generating device according to claim 7, characterized in that: The end surface of the first positioning protrusion facing away from the supporting portion is fixed to the magnetic circuit assembly; and / or, the support surface is fixed to the first side surface; And / or, the limiting member is connected to the magnetic yoke and / or the magnetic circuit assembly by welding or gluing; And / or, the first positioning notch is arranged at the outer edge of the magnetic yoke.

9. The vibration sound-generating device according to claim 6, characterized in that: The positioning portion includes a edging portion connected to the edge of the supporting surface, and a second positioning protrusion connected to the edging portion, the edging portion covers at least a portion of the edge of the magnetic yoke, the edge of the magnetic yoke is provided with a second positioning notch corresponding to the second positioning protrusion, and the second positioning protrusion is adapted to be embedded in the second positioning notch.

10. The vibration sound-generating device according to claim 9, characterized in that: At least one end of the edge portion protrudes and extends toward the direction close to the magnetic yoke to form the second positioning protrusion; And / or, a surface of the edging portion that is away from the edge of the magnetic yoke abuts against the second shell.

11. The vibration sound-generating device according to claim 9, characterized in that: The edge-wrapped portion is fixed to the edge of the magnetic yoke; and / or, the support surface is fixed to the first side surface; And / or, the edging portion is connected to the magnetic yoke by welding or gluing.

12. The vibration sound-generating device according to any one of claims 1 to 11, characterized in that: The magnetic yoke has a first edge and a second edge opposite to each other, and the vibration feedback system is provided with the limiting member corresponding to the first edge and the second edge.

13. The vibration sound-generating device according to any one of claims 1 to 11, characterized in that: The vibrator assembly also includes a counterweight block, the drive coil is arranged on the counterweight block, and a limiting hole corresponding to the limiting member is provided on the counterweight block. The limiting hole extends along the second direction, and the limiting member is located in the limiting hole and is spaced apart from both ends of the limiting hole in the second direction.

14. The vibration sound-generating device according to any one of claims 1 to 11, characterized in that: The magnetic circuit assembly includes a central magnetic part and a side magnetic part, the vibration sound generating system also includes a voice coil arranged on the diaphragm assembly, the central magnetic part and the side magnetic part are arranged at intervals to form a magnetic gap corresponding to an end of the voice coil away from the diaphragm assembly, the driving coil includes two first connecting edges arranged oppositely, Along the first direction, the two first connecting edges are respectively arranged opposite to the central magnetic portion and the edge magnetic portion; Alternatively, the central magnetic portion includes a plurality of first central magnets spaced apart along the second direction, the vibration feedback system vibrates along the second direction perpendicular to the first direction, and along the first direction, two first connecting edges are respectively arranged opposite to two adjacent first central magnets.

15. A vibration sound module, characterized in that: The vibration sound-generating module comprises a module shell and a vibration sound-generating device as described in any one of claims 1 to 14, the module shell is provided with an installation cavity and a first sound cavity, one cavity opening of the first sound cavity is provided on the outer surface of the module shell, and the other cavity opening is connected to the installation cavity, the vibration sound-generating device is provided in the installation cavity, and the diaphragm assembly is arranged opposite to the first sound cavity.

16. The vibration sound-generating module according to claim 15, characterized in that: A supporting bottom wall is provided at the connection point between the installation cavity and the first sound cavity, and the vibration sound-generating system of the vibration sound-generating device abuts against the supporting bottom wall. The module shell is also provided with a second sound cavity that at least partially surrounds the installation cavity, and the second shell is provided with a sound outlet hole connected to the second sound cavity.

17. The vibration sound-generating module according to claim 16, characterized in that: The supporting bottom wall and the vibration sound generating system are connected by fixing glue; And / or, the inner circumferential surface of the installation cavity is connected to the vibration sound-generating device through the fixing glue.

18. An electronic terminal, characterized in that: comprising a vibration sound-generating device as claimed in any one of claims 1 to 14; Or, comprising a vibration sound-generating module as described in any one of claims 15 to 17.

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