Vibration sound production monomer, vibration sound production module and electronic device

Abstract

The application discloses a kind of vibration sound emitting monomer, vibration sound emitting module and electronic equipment, vibration sound emitting monomer includes fixed component, first vibration system and second vibration system, fixed component includes support and fixed to the magnetic circuit system of support, magnetic circuit system has magnetic gap, first vibration system and second vibration system are respectively arranged at the opposite sides of fixed component and are respectively fixed to the opposite ends of fixed component, first vibration system vibrates along first direction, second vibration system vibrates along the second direction perpendicular to first direction, second vibration system includes elastic connecting piece and vibrator component, two ends of elastic connecting piece are respectively connected with vibrator component and the second end of fixed component, vibrator component includes drive coil, magnetic circuit system is correspondingly arranged with drive coil to drive vibrator component vibration.According to the vibration sound emitting monomer of the application, the structure is simple and compact, can realize modularization and standardization design, and is strong in applicability.

Description

Technical Field

[0001] This invention relates to the field of electroacoustic equipment, and in particular to a vibrating sound-generating unit, a vibrating sound-generating module, and an electronic device. Background Technology

[0002] Smart terminal devices, especially mobile phones, typically need to provide both audio and haptic feedback experiences. The audio experience comes from the sound-emitting unit, while the haptic feedback experience comes from the vibration unit.

[0003] In related technologies, a vibration-generating module integrating a sound-generating unit and a vibration unit has been proposed. In this module, the sound-generating unit and the vibration unit are separately configured as independent control units, and are stacked within the housing of the vibration-generating module. While this structure achieves integration of the sound-generating unit and the vibration unit, the vibration-generating module occupies too much assembly space, thus hindering the miniaturization and lightweight design of the terminal device.

[0004] Moreover, the two ends of the elastic connector of the aforementioned vibration sound generation module are connected to the module housing and the vibrator assembly, respectively. When the model of the vibration sound generation module changes, the vibration unit needs to adjust the structural design of the elastic connector according to the change of the vibration sound generation module, which makes it impossible to realize the modular and standardized design of the vibration sound generation unit and reduces production efficiency. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes a vibrating sound-generating unit, which has the advantages of simple and compact structure and modular and standardized design.

[0006] The present invention also proposes a vibration-generating module having the above-mentioned vibration-generating unit.

[0007] The present invention also proposes an electronic device having the above-mentioned vibration sound-generating module.

[0008] According to a first aspect of the present invention, a vibrating sound-generating unit includes: a fixing assembly, the fixing assembly including a bracket and a magnetic circuit system fixed to the bracket, the magnetic circuit system including a magnetic yoke and a central magnetic portion and a side magnetic portion respectively disposed on the magnetic yoke, the side magnetic portion being disposed outside the central magnetic portion and spaced apart from the central magnetic portion to define a magnetic gap; a first vibration system and a second vibration system, the first vibration system and the second vibration system being respectively disposed on opposite sides of the fixing assembly and respectively fixed to opposite ends of the fixing assembly, wherein the first vibration system vibrates along a first direction, the first vibration system being fixed to a first end of the fixing assembly, the first vibration system including a diaphragm assembly and a voice coil, one end of the voice coil being connected to the diaphragm assembly, and the other end of the voice coil being inserted into the magnetic gap; the second vibration system vibrates along a second direction perpendicular to the first direction. The second vibration system includes an elastic connector and an oscillator assembly. The two ends of the elastic connector are respectively connected to the second ends of the oscillator assembly and the fixed assembly. The oscillator assembly includes a counterweight and a drive coil disposed on the counterweight. The magnetic circuit system is correspondingly arranged with the drive coil to drive the oscillator assembly to vibrate. The central magnetic part includes a plurality of first sub-central magnets spaced apart along the second direction. The magnetization directions of two adjacent first sub-central magnets are opposite. The drive coil has two long sides arranged opposite to each other. Along the first direction, the two long sides are respectively arranged opposite to two adjacent first sub-central magnets. The magnetic yoke includes a body part and a hollow hole disposed in the body part. The side magnetic part and the first sub-central magnets located at both ends are disposed in the body part. Along the first direction, the hollow hole is at least partially opposite to the drive coil.

[0009] According to a first aspect embodiment of the present invention, the vibrating sound-generating unit has a magnetic gap in the magnetic circuit system corresponding to the voice coil in the first vibration system, and the magnetic circuit system is also correspondingly arranged with the drive coil of the second vibration system. This improves the magnetic field utilization rate of the magnetic circuit system, saves one set of magnetic circuit systems, reduces production costs, and saves the assembly space occupied by one set of magnetic circuit systems, thus enabling the miniaturization and thinning design of the vibrating sound-generating unit. Furthermore, the two ends of the elastic connector in the second vibration system are respectively connected to the vibrator assembly and the fixing assembly, thereby allowing the vibrating sound-generating unit to form an independent functional unit. This enables modular and standardized design of the vibrating sound-generating unit, greatly improving its applicability.

[0010] According to some embodiments of the present invention, the two ends of the elastic connector are respectively connected to the oscillator assembly and the bracket, the bracket having a mounting portion extending to a second end of the fixing assembly, and the elastic connector being fixedly connected to the mounting portion.

[0011] According to some embodiments of the present invention, the two ends of the elastic connector are respectively connected to the oscillator assembly and the magnetic circuit system.

[0012] According to some embodiments of the present invention, the side magnetic part includes a side magnet and a side magnetic guide plate disposed on the side of the side magnet away from the second vibration system, the side magnetic guide plate having a mounting portion extending to a second end of the fixing assembly, and the elastic connector being fixedly connected to the mounting portion; or, the elastic connector being fixedly connected to the side of the magnetic circuit system.

[0013] According to some embodiments of the present invention, the elastic connector is connected to the magnetic yoke.

[0014] In some embodiments of the present invention, the magnetic yoke includes a body and a support frame disposed at both ends of the body, one end of the elastic connector is connected to the support frame, and the other end of the elastic connector is connected to the counterweight.

[0015] In some embodiments of the present invention, the main body is formed into a square structure, and there are two support frames, which are respectively located at opposite corners of the main body.

[0016] In some embodiments of the present invention, the elastic connector is provided with a first elastic connecting portion extending along the second direction and a second elastic connecting portion extending along a third direction, the third direction being perpendicular to the first direction and the second direction respectively, one of the first elastic connecting portion and the second elastic connecting portion being connected to the support frame, and the other of the first elastic connecting portion and the second elastic connecting portion being connected to the counterweight.

[0017] According to some embodiments of the present invention, there are at least three first sub-center magnets, and two adjacent first sub-center magnets are spaced apart to form a spacer. The number of drive coils is the same as the number of spacers, and the center holes of the drive coils are arranged in a one-to-one correspondence with the spacers.

[0018] In some embodiments of the present invention, along the second direction, the gap between two adjacent first sub-center magnets is close to zero or equal to zero.

[0019] According to some embodiments of the present invention, the side magnetic part includes a side magnet, and the side magnet and a plurality of first sub-center magnets are all magnetized along the first direction, and the magnetization directions between adjacent side magnets and first sub-center magnets and between two adjacent first sub-center magnets are opposite.

[0020] According to some embodiments of the present invention, the central magnetic part further includes a central magnetic guide plate, and the side of the plurality of first sub-central magnets away from the second vibration system is connected to the central magnetic guide plate.

[0021] According to some embodiments of the present invention, the projections of the other first sub-center magnets between the first sub-center magnets located at both ends along the first direction are all located inside the edge of the hollow hole.

[0022] In some embodiments of the present invention, along the first direction, other first sub-center magnets located at both ends of the first sub-center magnets extend into the hollow hole.

[0023] According to some embodiments of the present invention, a portion of the first sub-center magnet located at both ends is disposed on the main body, and another portion of the first sub-center magnet located at both ends is disposed opposite to the hollow hole.

[0024] According to a second aspect of the present invention, a vibration-generating module includes a housing and a vibration-generating unit according to the above-described embodiments of the present invention, wherein the vibration-generating unit is disposed within the housing, and a first end of the fixing component is connected to the inner wall of the housing.

[0025] According to the second aspect of the present invention, the vibration sound-generating module, by setting the above-mentioned vibration sound-generating unit, the first vibration system and the second vibration system of the vibration sound-generating unit share a set of magnetic circuit system, and the structure is relatively compact, thereby increasing the acoustic cavity volume of the vibration sound-generating module; moreover, the elastic connecting parts of the above-mentioned vibration sound-generating unit are respectively connected to the fixing component and the oscillator component, thereby realizing modular and standardized design, thereby improving the assembly efficiency of the vibration sound-generating module.

[0026] An electronic device according to a third aspect of the present invention includes a vibration-generating sound module according to the above embodiments of the present invention.

[0027] According to the third aspect of the present invention, the electronic device, by providing the above-mentioned vibration sound-generating module, has a compact structural design, occupies little assembly space, and has good sound generation and vibration effects, thereby meeting the requirements for lightweight and thin design of electronic devices, and also enabling electronic devices to have both good sound quality and vibration feedback effects, thereby enhancing the product market competitiveness of electronic devices.

[0028] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a schematic diagram of the exploded structure of a vibrating sound-generating unit according to an embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the exploded structure of a vibrating sound-generating unit according to another embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the exploded structure of a vibrating sound-generating unit according to another embodiment of the present invention;

[0033] Figure 4 This is a vertical cross-sectional view of a vibrating sound-generating unit along a second direction according to an embodiment of the present invention;

[0034] Figure 5 This is a vertical cross-sectional view of the vibrating sound-generating unit along the second direction according to another embodiment of the present invention;

[0035] Figure 6 This is a vertical cross-sectional view of the vibrating sound-generating unit along the second direction according to another embodiment of the present invention;

[0036] Figure 7 This is a vertical cross-sectional view of a vibrating sound-generating unit along a third direction according to an embodiment of the present invention;

[0037] Figure 8 This is a vertical cross-sectional view of the vibrating sound-generating unit along a third direction according to another embodiment of the present invention;

[0038] Figure 9 This is a vertical cross-sectional view of the vibrating sound-generating unit along a third direction according to yet another embodiment of the present invention;

[0039] Figure 10 This is a structural schematic diagram of a vibrating sound-generating unit according to an embodiment of the present invention, viewed from a first-view angle.

[0040] Figure 11 This is a schematic diagram of the structure of a vibrating sound-generating unit according to an embodiment of the present invention from another viewing angle;

[0041] Figure 12 This is a schematic diagram of the cooperation structure between the bracket and the elastic connector according to an embodiment of the present invention;

[0042] Figure 13 This is a vertical cross-sectional view of a vibrating sound-generating unit along a second direction according to an embodiment of the present invention;

[0043] Figure 14This is a schematic diagram of the structure of a vibration sound-generating module according to an embodiment of the present invention.

[0044] Figure label:

[0045] Vibrating sound-generating unit 100,

[0046] Magnetic circuit system 1, magnetic gap 1a, spacer 1b, first sub-magnetic gap 1c, second sub-magnetic gap 1d, central magnetic part 11, first sub-central magnetic part 11a, second sub-central magnetic part 11b, central magnet 110, first sub-central magnet 111, second sub-central magnet 112, central magnetic guide plate 113, support part 1131, extension part 1132, side magnetic part 12, side magnet 121, side magnetic guide plate 122, first plate body 1221, second plate body 1222, recess 122a, magnetic yoke 13, body part 131, hollow hole 132, support frame 133.

[0047] First vibration system 2, diaphragm assembly 21, diaphragm 211, dome 212, voice coil 22, first voice coil 22a, second voice coil 22b.

[0048] The second vibration system 3 includes an elastic connector 31, a first elastic connector 311, a second elastic connector 312, an oscillator assembly 32, a counterweight 321, an assembly groove 321a, a drive coil 322, a long side 3221, and a short side 3222.

[0049] Bracket 4, First mounting part 41,

[0050] 5.

[0051] Vibration sound generation module 200, housing 201. Detailed Implementation

[0052] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0053] The following is for reference. Figures 1-13 The vibration-generating unit 100 according to the first aspect of the present invention is described in detail. The vibration-generating unit 100 can be a loudspeaker unit that has both sound generation and vibration functions.

[0054] like Figures 1-3 As shown, the vibrating sound-generating unit 100 according to a first aspect embodiment of the present invention includes: a fixing component, a first vibration system 2, and a second vibration system 3.

[0055] The fixing component may include a bracket 4 and a magnetic circuit system 1 fixed to the bracket 4, the magnetic circuit system 1 having a magnetic gap 1a. A first vibration system 2 and a second vibration system 3 are respectively located on opposite sides of the fixing component and fixed to opposite ends of the fixing component. The first vibration system 2 can vibrate along a first direction and is fixed to a first end of the fixing component. The first vibration system 2 may include a diaphragm assembly 21 and a voice coil 22. One end of the voice coil 22 is connected to the diaphragm assembly 21, and the other end of the voice coil 22 is inserted into the magnetic gap 1a. For example, the first direction may be the vertical z-direction, meaning the voice coil 22 can reciprocate vertically under the drive of a magnetic field, thereby driving the diaphragm assembly 21 to vibrate and produce sound, realizing the sound-producing function of the vibrating sound-producing unit 100. In a specific example of the present invention, the diaphragm assembly 21 may include a diaphragm 211 and a dome 212. The diaphragm 211 is connected to the support 4 of the vibrating sound-generating unit 100, the dome 212 is disposed on the diaphragm 211, and the end of the voice coil 22 away from the magnetic circuit system 1 is connected to the dome 212.

[0056] like Figures 4-6 As shown, the second vibration system 3 can vibrate along a second direction perpendicular to the first direction. The second vibration system 3 may include an elastic connector 31 and an oscillator assembly 32. The two ends of the elastic connector 31 are respectively connected to the second ends of the oscillator assembly 32 and the fixed assembly. The oscillator assembly 32 includes a counterweight 321 and a drive coil 322 disposed on the counterweight 321. The magnetic circuit system 1 is correspondingly arranged with the drive coil 322 to drive the oscillator assembly 32 to vibrate.

[0057] Specifically, the first vibration system 2 can vibrate along the vertical z-direction, and the second vibration system 3 can vibrate along the horizontal x-direction. The magnetic circuit system 1 has a magnetic gap 1a corresponding to the first vibration system 2. The end of the voice coil 22 in the first vibration system 2 furthest from the diaphragm assembly 21 can be inserted into the magnetic gap 1a. Thus, the magnetic circuit system 1 can drive the first vibration system 2 to vibrate along the first direction. Furthermore, the magnetic circuit system 1 is also correspondingly configured with a drive coil 322 for the second vibration system 3. That is, the magnetic circuit system 1 can also drive the drive coil 322 to drive the counterweight 321 to vibrate along the second direction, thereby realizing the second-direction vibration of the second vibration system 3.

[0058] In this system, one end of the elastic connector 31 of the second vibration system 3 is connected to the vibrator assembly 32, and the other end of the elastic connector 31 is connected to the fixing assembly. That is, the other end of the elastic connector 31 can be connected to the bracket 4 or to the magnetic circuit system 1. It should be noted that the bracket 4 can be a separate component independent of the magnetic circuit system 1. The bracket can also be formed by extending a part of the magnetic circuit system 1, that is, the bracket can be formed as an integral part with the magnetic circuit system 1. Alternatively, the bracket 4 can be formed by a part extending from the magnetic circuit system 1 and a plastic material part (basin frame 5) injected into the magnetic circuit system. The configuration can be selected according to the actual design and usage requirements, and the present invention does not impose specific limitations on this.

[0059] For example, such as Figure 12 As shown, the magnetic circuit system 1 may include a side magnetic section 12. The side magnetic plate 122 of the side magnetic section 12 includes a first plate 1221 extending along a second direction and a second plate 1222 extending along a first direction. The frame 5 of the vibrating sound-generating unit 100 is made of plastic material. The frame 5 and the side magnetic plate 122 are integrally injection molded. The frame 5 is connected to the second plate 1222. The frame 5 and the side magnetic plate 122 of the vibrating sound-generating unit 100 together form a support 4. One end of the elastic connector 31 is connected to the vibrator assembly 32, and the other end of the elastic connector 31 is integrally injection molded to the support 4 of the vibrating sound-generating unit 100.

[0060] Understandably, a portion of the magnetic field of the magnetic circuit system 1 of a loudspeaker is typically used to drive the voice coil 22 to vibrate and produce sound. This invention saves one set of magnetic circuit system 1 by setting a magnetic gap 1a corresponding to the first vibration system 2 in the magnetic circuit system 1, and the magnetic circuit system 1 is also set to correspond to the drive coil 322 of the second vibration system 3, thereby reducing production costs. In addition, it can also save the assembly space occupied by one set of magnetic circuit system 1, thus satisfying the miniaturization and thinning design of the vibration sound-generating unit 100.

[0061] Furthermore, the two ends of the elastic connector 31 in the second vibration system 3 are connected to the vibrator assembly 32 and the fixing assembly, respectively. Both the vibrator assembly 32 and the fixing assembly are components of the vibrating sound-generating unit 100. Thus, the vibrating sound-generating unit 100 can be formed as an independent functional unit. That is, when the vibrating sound-generating unit 100 can be fixed as a complete and independent functional unit in the housing 201 of the vibrating sound-generating module 200, when the model of the vibrating sound-generating module 200 changes, only the size and shape of its housing 201 need to be adjusted, without changing the vibrating sound-generating unit 100. This enables the modular and standardized design of the vibrating sound-generating unit 100, greatly improving the applicability of the vibrating sound-generating unit 100.

[0062] According to the first aspect of the present invention, the vibrating sound-generating unit 100 has a magnetic gap 1a in the magnetic circuit system 1 corresponding to the voice coil 22 in the first vibration system 2, and the magnetic circuit system 1 is also correspondingly arranged with the drive coil 322 of the second vibration system 3. This improves the magnetic field utilization rate of the magnetic circuit system 1, saves one set of magnetic circuit system 1, reduces production costs, and saves the assembly space occupied by one set of magnetic circuit system 1, thereby meeting the requirements for miniaturization and thinning of the vibrating sound-generating unit 100. Moreover, the two ends of the elastic connector 31 in the second vibration system 3 are respectively connected to the vibrator assembly 32 and the fixing assembly. Thus, the vibrating sound-generating unit 100 can be formed as an independent functional unit, realizing the modular and standardized design of the vibrating sound-generating unit 100, and greatly improving the applicability of the vibrating sound-generating unit 100.

[0063] like Figure 12 As shown, according to some embodiments of the present invention, the two ends of the elastic connector 31 are respectively connected to the vibrator assembly 32 and the bracket 4. The bracket 4 has a first mounting portion 41 extending to the second end of the fixed assembly. The elastic connector 31 is fixedly connected to the first mounting portion 41. Thus, the vibrating sound-generating unit 100 can achieve modular and standardized design. The first mounting portion 41 of the bracket 4 can suspend the vibrator assembly 32 through the elastic connector 31. Under the action of the magnetic field force of the magnetic circuit system 1, the drive coil 322 can drive the counterweight 321 to vibrate smoothly along the second direction.

[0064] According to some embodiments of the present invention, the two ends of the elastic connector 31 can be connected to the vibrator assembly 32 and the magnetic circuit system 1 respectively. Thus, not only can the modular and standardized design of the vibrating sound-generating unit 100 be realized, but the structural design of the vibrating sound-generating unit 100 can also be simplified. The magnetic circuit system 1 can suspend the vibrator assembly 32 by connecting it to the elastic connector 31.

[0065] like Figures 4-6 As shown, according to some embodiments of the present invention, the magnetic circuit system 1 may include a magnetic yoke 13 and a central magnetic part 11 and a side magnetic part 12 respectively disposed on the magnetic yoke 13. The side magnetic part 12 is disposed outside the central magnetic part 11 and is spaced apart from the central magnetic part 11 to define a magnetic gap 1a. The side of the voice coil 22 away from the diaphragm assembly 21 may be inserted into the magnetic gap 1a. Thus, under the action of the magnetic field lines in the magnetic gap 1a, the voice coil 22 can drive the diaphragm assembly 21 to vibrate along the first direction.

[0066] In some embodiments of the present invention, the side magnetic part 12 may include a side magnet 121 and a side magnetic guide plate 122 disposed on the side of the side magnet 121 away from the second vibration system 3. The side magnetic guide plate 122 has a second mounting part (not shown) extending to the second end of the fixing component. The elastic connector 31 is fixedly connected to the second mounting part. Thus, the side magnetic guide plate 122 can not only concentrate the magnetic field lines in the side magnetic part 12, but also fix the elastic connector 31. This simplifies the structural design of the vibrating sound generating unit 100 and makes the structural design of the vibrating sound generating unit 100 more compact.

[0067] In other embodiments of the present invention, the elastic connector 31 can also be fixedly connected to the side of the magnetic circuit system 1. For example, the elastic connector 31 can be fixedly connected to the side of the side magnet 121, and the elastic connector 31 can also be fixedly connected to the side of the side magnetic plate 122. This simplifies the structural design of the vibrating sound-generating unit 100 and makes the structural design of the vibrating sound-generating unit 100 more compact.

[0068] like Figures 10-11 As shown, in some embodiments of the present invention, the elastic connector 31 is connected to the magnetic yoke 13. It can be understood that the magnetic yoke 13 is located on the side of the magnetic circuit system 1 near the oscillator assembly 32. By setting the elastic connector 31 to be connected to the magnetic yoke 13, the elastic connector 31 can be easily fixed, which is more convenient in actual operation.

[0069] In some embodiments of the present invention, the magnetic yoke 13 may include a body part 131 and a support frame 133 disposed at both ends of the body part 131. One end of the elastic connector 31 is connected to the support frame 133, and the other end of the elastic connector 31 is connected to the counterweight 321. Thus, the body part 131 can be used to support the central magnetic part 11 and the side magnetic part 12, and the support frame 133 can be used to support the connecting elastic connector 31. The structural design is relatively reasonable.

[0070] exist Figures 10-11In the specific example shown, the support frame 133 can be formed as a plate-like structure. One end of the support frame 133 is connected to the body portion 131, and the other end of the support frame 133 extends in a first direction away from the body portion 131. Thus, the support frame 133 can define the installation space for the elastic connector 31, facilitating the installation and fixation of the elastic connector 31. Optionally, the support frame 133 and the body portion 131 can be formed as an integrally molded structure, such as an integral stamped part. Alternatively, the support frame 133 and the body portion 131 can be formed as separate structures, and can be fixed together by welding. Optionally, the support frame 133 and the body portion 131 can be made of the same material, or they can be formed of different materials. For example, the body portion 131 can be made of a high-permeability magnetic material (such as cobalt alloy), and the support frame 133 can be made of metal, plastic, or other materials.

[0071] In a specific embodiment of the present invention, the main body 131 can be formed into a square structure, and there are two support frames 133 respectively located at opposite corners of the main body 131. This allows the two elastic connectors 31 to be formed into corresponding mounting structures, making the force on the oscillator assembly 32 more balanced and improving the operational stability of the second vibration system 3.

[0072] like Figures 10-11 As shown, in one embodiment of the present invention, the elastic connector 31 is provided with a first elastic connecting portion 311 extending along a second direction and a second elastic connecting portion 312 extending along a third direction, the third direction being perpendicular to the first direction and the second direction respectively. One of the first elastic connecting portion 311 and the second elastic connecting portion 312 is connected to the support frame 133, and the other of the first elastic connecting portion 311 and the second elastic connecting portion 312 is connected to the counterweight 321.

[0073] Specifically, the first direction can be the vertical z-direction, the second direction can be the horizontal x-direction, and the third direction can be the horizontal y-direction, which is perpendicular to the first and second directions, respectively. Each elastic connector 31 includes a first elastic connecting portion 311 and a second elastic connecting portion 312 arranged at an angle. The first elastic connecting portion 311 extends along the second direction, and the second elastic connecting portion 312 extends along the third direction. One of the first elastic connecting portions 311 and 312 is connected to the support frame 133, and the other is connected to the counterweight 321. Thus, both the first elastic connecting portion 311 and the second elastic connecting portion 312 can buffer the oscillator assembly 32, thereby ensuring the smooth operation of the second vibration system 3.

[0074] like Figure 13As shown, in some embodiments of the present invention, the magnetic circuit system 1 may include a central magnetic part 11 and a side magnetic part 12. The side magnetic part 12 is disposed outside the central magnetic part 11 and is spaced apart from the central magnetic part 11 to define a magnetic gap 1a. The central magnetic part 11 includes a central magnet 110, and the side magnetic part 12 includes a side magnet 121. The driving coil 322 may have two long sides 3221 arranged opposite to each other. Along the first direction, the two long sides 3221 are respectively arranged opposite to the central magnet 110 and the side magnet 121. Thus, the central magnetic part 11 and the side magnetic part 12 can not only form a magnetic gap 1a corresponding to the first vibration system 2, but also the magnetic circuit system 1 can simultaneously act on the driving coil 322 in the second vibration system 3, realizing the structural design of the first vibration system 2 and the second vibration system 3 sharing a set of magnetic circuit system 1.

[0075] like Figures 4-5 As shown, in some embodiments of the present invention, the central magnetic section 11 includes a plurality of first sub-central magnets 111 spaced apart along a second direction. The magnetization directions of two adjacent first sub-central magnets 111 are opposite. The driving coil 322 has two opposing long sides 3221, which are respectively positioned opposite to two adjacent first sub-central magnets 111 along a first direction. Specifically, the magnetic field utilization rate of the central magnetic circuit portion of a loudspeaker is usually low. By arranging a plurality of first sub-central magnets 111 spaced apart along a second direction in the central magnetic section 11, and by positioning the two long sides 3221 of the driving coil 322 opposite to two adjacent first sub-central magnets 111 along the first direction, the present invention allows the portion of the magnetic field in the central magnetic section 11 with low utilization in the first vibration system 2 to be used as the magnetic field of the second vibration system 3. This improves the magnetic field utilization rate of the central magnetic section 11, saves one set of magnetic circuit system 1, and reduces production costs.

[0076] like Figures 4-5 As shown, in some embodiments of the present invention, there are at least three first sub-center magnets 111. Two adjacent first sub-center magnets 111 are spaced apart to form a spacer portion 1b. The number of drive coils 322 is the same as the number of spacer portions 1b, and the center holes of the drive coils 322 correspond one-to-one with the spacer portions 1b. Specifically, the drive coils 322 can be flat, with their two long sides 3221 located on opposite sides of the center hole. The number of drive coils 322 is the same as the number of spacer portions 1b, ensuring that a drive coil 322 is provided between each pair of adjacent first sub-center magnets 111. Thus, with the above arrangement, each drive coil 322 corresponds to a pair of spaced-apart first sub-center magnets 111, and the first and second long sides 3221 can sufficiently cut magnetic field lines, thereby improving the vibration effect of the oscillator assembly 32.

[0077] It should be noted that the above-mentioned spacing of the first sub-center magnets 111 can be understood as the two adjacent first sub-center magnets 111 being separately arranged. Along the second direction, the gap (spacer 1b) between two adjacent first sub-center magnets 111 can be large or small, and can be selected according to actual usage requirements.

[0078] Optionally, along the second direction, the gap between two adjacent first sub-center magnets 111 is close to or equal to zero, that is, the width of the gap 1b is close to or equal to zero. In other words, two adjacent first sub-center magnets 111 can be arranged abutting each other. When the gap between two adjacent first sub-center magnets 111 is equal to zero, the gap 1b between them can be a contact surface / point / line between the two adjacent first sub-center magnets 111. It is understood that although two adjacent first sub-center magnets 111 are arranged abutting each other, due to assembly errors and material errors, a small gap (gap 1b) may exist between the two adjacent first sub-center magnets 111. In another specific example of the present invention, along the second direction, the width of the gap 1b can be 0.05mm ± 0.02mm.

[0079] By placing two adjacent first sub-center magnets 111 close together, compared to the case where the two adjacent first sub-center magnets 111 have a wider gap, the size and volume of the magnets can be increased, thus providing magnetic field strength.

[0080] Furthermore, since magnets are typically assembled separately with different magnetization directions, for example, in the case of three first sub-center magnets 111, the two first sub-center magnets 111 located at both ends are first fixed, and then the first sub-center magnet 111 located in the middle position is inserted into the assembly space defined between the two first sub-center magnets 111 located at both ends. Therefore, when adjacent first sub-center magnets 111 are arranged close together, there is no need to precisely position the first sub-center magnet 111 in the middle position, simplifying the assembly process of the central magnetic part 11 and improving assembly efficiency. Furthermore, since the three first sub-center magnets 111 are attached together, during the assembly of the later-installed first sub-center magnets 111, the glue used for fixing will overflow to the periphery of the magnets and then overflow into the tiny gaps between two adjacent first sub-center magnets 111, which can bond the two adjacent first sub-center magnets 111 together. Thus, the three first sub-center magnets 111 can be formed into a bonded whole, which greatly improves the structural strength of the central magnetic part 11. When the product is dropped or collided, the first sub-center magnets 111 are less likely to loosen or fall off.

[0081] In a specific example of the present invention, the drive coil 322 may further include two short sides 3222 disposed opposite to each other. The two short sides 3222 are disposed on both sides of the length direction of the long side 3221, and the two ends of each short side 3222 are respectively connected to the long side 3221. Thus, the two short sides 3222 and the two long sides 3221 cooperate to define the central hole. Along the first direction, each central hole is disposed in a one-to-one correspondence with each spacer 1b.

[0082] like Figures 4-5 As shown, in some embodiments of the present invention, the side magnet portion 12 may include a side magnet 121. The side magnet 121 and a plurality of first sub-center magnets 111 are all magnetized along a first direction, and the magnetization directions between adjacent side magnets 121 and first sub-center magnets 111, as well as between two adjacent first sub-center magnets 111, are opposite. For example, the first direction may be the vertical z-direction, that is, the side magnet 121 and a plurality of first sub-center magnets 111 are all magnetized along the vertical direction, the magnetization between adjacent side magnets 121 and first sub-center magnets 111, as well as between one of two adjacent first sub-center magnets 111, is along a top-down direction, and the magnetization between adjacent side magnets 121 and first sub-center magnets 111, as well as between the other of two adjacent first sub-center magnets 111, is along a bottom-up direction. Therefore, through the above settings, the voice coil 22 can fully cut the magnetic field lines in the magnetic gap 1a formed between the side magnetic part 12 and the central magnetic part 11, and the drive coil 322 can fully cut the magnetic field lines formed by the two adjacent first sub-central magnets 111, thus ensuring the sound generation and vibration effect of the vibrating sound-generating unit 100.

[0083] like Figures 4-5 As shown, in some embodiments of the present invention, the central magnetic part 11 further includes a central magnetic guide plate 113. The side of the plurality of first sub-central magnets 111 away from the second vibration system 3 is connected to the central magnetic guide plate 113. The central magnetic guide plate 113 can not only concentrate magnetic field lines, but also assemble the plurality of first sub-central magnets 111 together, which facilitates the installation and fixing of the plurality of first sub-central magnets 111.

[0084] like Figure 5As shown, in some embodiments of the present invention, the magnetic yoke 13 includes a body portion 131 and a hollow hole 132 provided in the body portion 131. The side magnetic portion 12 and the first sub-central magnets 111 located at both ends are both provided in the body portion 131. Along a first direction, the hollow hole 132 is at least partially opposite to the drive coil 322. Specifically, one end of each of the multiple first sub-central magnets 111 can be connected to the central magnetic plate 113, and the other end of the first sub-central magnets 111 located at both ends is fixed to the body portion 131. Thus, the magnetic yoke 13 not only fixes the side magnetic portion 12 and the central magnetic portion 11, but also has a magnetic focusing effect, ensuring the magnetic field strength corresponding to the first vibration system 2. By providing the hollow hole 132 on the body portion 131, the hollow hole 132 can be opposite to a portion of the drive coil 322 or the entire drive coil 322, thereby ensuring that the drive coil 322 can smoothly cut the magnetic field lines, thus ensuring the vibration effect of the second vibration system 3.

[0085] Optionally, there can be multiple drive coils 322 and one cutout hole 132. The cutout hole 132 is correspondingly set with multiple drive coils 322, which simplifies the processing procedure of the cutout hole 132 and improves processing efficiency. Optionally, there can be multiple drive coils 322 and multiple cutout holes 132, with multiple cutout holes 132 corresponding one-to-one with multiple drive coils 322. This can relatively reduce the opening area of ​​the magnetic yoke 13, thereby not only improving the structural strength of the magnetic yoke 13, but also improving the magnetic focusing effect of the magnetic yoke 13.

[0086] In some embodiments of the present invention, the projections of the other first sub-center magnets 111 between the first sub-center magnets 111 located at both ends along the first direction are all located inside the edge of the hollow hole 132, thereby ensuring the number of magnetic field lines passing through the hollow hole 132, thereby ensuring the vibration effect of the second vibration system 3.

[0087] Furthermore, along the first direction, the other first sub-center magnets 111 located at both ends extend into the hollow hole 132, thereby reducing the distance between the central magnetic part 11 and the drive coil 322, thereby increasing the intensity of the magnetic field lines acting on the drive coil 322, and thus improving the vibration effect of the second vibration system 3.

[0088] In some embodiments of the present invention, a portion of the first sub-center magnet 111 located at both ends may be disposed on the body portion 131, and the other portion of the first sub-center magnet 111 located at both ends may be disposed opposite to the hollow hole 132, thereby ensuring the number of magnetic field lines passing through the hollow hole 132, thereby ensuring the vibration effect of the second vibration system 3.

[0089] The following is for reference. Figure 2 , Figure 5 and Figure 7 A detailed description of a vibrating sound-generating unit 100 according to a specific embodiment of the present invention.

[0090] like Figure 2 , Figure 5 and Figure 7 As shown, the vibrating sound-generating unit 100 includes: a magnetic circuit system 1, a first vibration system 2, and a second vibration system 3.

[0091] The first vibration system 2 and the second vibration system 3 are respectively located on opposite sides of the magnetic circuit system 1. The magnetic circuit system 1 includes a magnetic yoke 13 and a central magnetic part 11 and a side magnetic part 12 located on the magnetic yoke 13. The side magnetic part 12 is located outside the central magnetic part 11, and the central magnetic part 11 and the side magnetic part 12 are spaced apart to define a magnetic gap 1a. The central magnetic part 11 includes three first sub-central magnets 111 and a central magnetic guide plate 113. The three first sub-central magnets 111 are spaced apart along a second direction (horizontal x-direction). The end of each first sub-central magnet 111 away from the second vibration system 3 is connected to the central magnetic guide plate 113. Adjacent first sub-central magnets 111 are spaced apart to form a gap 1b. The side magnet section 12 includes a side magnet 121 and a side magnetic guide plate 122 disposed on the side of the side magnet 121 away from the second vibration system 3. The side magnet 121 and a plurality of first sub-center magnets 111 are all magnetized along a first direction, and the magnetization directions between adjacent side magnets 121 and first sub-center magnets 111, as well as between two adjacent first sub-center magnets 111, are opposite. The magnetic yoke 13 includes a body section 131 and a hollow hole 132 disposed in the body section 131. The side magnet 121 and the first sub-center magnets 111 located at both ends are disposed in the body section 131. Along the first direction (vertical z direction), the first sub-center magnet 111 located in the middle extends into the hollow hole 132.

[0092] The first vibration system 2 vibrates along a first direction. The first vibration system 2 includes a diaphragm assembly 21 and a voice coil 22. The diaphragm assembly 21 includes a diaphragm 211 and a dome 212 disposed on the diaphragm 211. One end of the voice coil 22 is fixed to the dome 212, and the other end of the voice coil 22 is inserted into the magnetic gap 1a. The side magnetic plate 122 includes a horizontally extending first plate 1221 and a vertically extending second plate 1222. The first plate 1221 is disposed on the side of the side magnet 121 away from the second vibration system 3. One end of the second plate 1222 is connected to the first plate 1221, and the other end of the second plate 1222 extends along the first direction. The edge of the diaphragm 211 is fixed to the second plate 1222. The second plate 1222 can be integrally injection molded with the plastic frame 5 of the vibrating sound-generating unit 100, that is, the second plate 1222 can be used as part of the support 4, and the edge of the diaphragm 211 can be fixed to the support 4. The diaphragm 211 has a folded ring portion that extends along the first direction toward the side magnet portion 12, and the first plate 1221 has a recessed portion 122a that corresponds to the folded ring portion.

[0093] The second vibration system 3 vibrates along a second direction. The second vibration system 3 includes an elastic connector 31 and an oscillator assembly 32. The main body 131 of the magnetic yoke 13 forms a square structure. Support frames 133 are provided at a pair of opposite corners of the main body 131. The support frames 133 are plate-shaped structures. One end of the support frame 133 is connected to the main body 131, and the other end extends along the first direction away from the main body 131. Both ends of the elastic connector 31 are connected to the oscillator assembly 32 and the support frame 133, respectively. Thus, the magnetic circuit system 1 can suspend the oscillator assembly 32. The oscillator assembly 32 includes... The counterweight 321 and two drive coils 322 disposed on the counterweight 321, each drive coil 322 having two long sides 3221 and two short sides 3222 disposed opposite to each other. The two short sides 3222 are disposed on both sides of the length direction of the long side 3221, and the two ends of each short side 3222 are respectively connected to the long side 3221. Thus, the two short sides 3222 and the two long sides 3221 cooperate to define the central hole. Along the first direction, each central hole is disposed in one-to-one correspondence with each spacer 1b, and the two long sides 3221 are respectively disposed opposite to the two adjacent first sub-central magnets 111.

[0094] like Figure 3 and Figure 9As shown, in some embodiments of the present invention, the central magnetic part 11 may further include a central magnetic guide plate 113. The side of the plurality of first sub-central magnets 111 away from the second vibration system 3 is connected to the central magnetic guide plate 113. The magnetic guide yoke 13 includes a body part 131 and a hollow hole 132 provided in the body part 131. The side magnetic part 12 is provided in the body part 131 on the side close to the second vibration system 3. The central magnetic guide plate 113 may include a support part 1131 and an extension part 1132 provided outside the support part 1131. The extension part 1132 extends along a first direction. The two ends of the extension part 1132 are respectively connected to the support part 1131 and the body part 131. The support part 1131 and the hollow hole 132 are arranged opposite to each other. The plurality of first sub-central magnets 111 are all fixed to the support part 1131.

[0095] Specifically, the central magnetic guide plate 113 not only serves to concentrate magnetic field lines but also assembles multiple first sub-central magnets 111 together. The central magnetic guide plate 113 includes a support portion 1131 extending along a second direction and an extension portion 1132 extending along a first direction. One end of each of the multiple first sub-central magnets 111 can be connected to the support portion 1131. The two ends of the extension portion 1132 are respectively connected to the support portion 1131 and the main body portion 131. Thus, the magnetic guide yoke 13 not only supports the side magnetic portion 12 but also supports the central magnetic portion 11 through the extension portion 1132. A perforated hole 132 is provided on the main body portion 131 of the magnetic guide yoke 13. The other end of each of the multiple first sub-central magnets 111 can face the perforated hole 132. The perforated hole 132 can face either a portion of the drive coil 322 or the entire drive coil 322, thereby ensuring that the drive coil 322 can smoothly cut the magnetic field lines, thus ensuring the vibration effect of the second vibration system 3.

[0096] like Figure 3 As shown, in some embodiments of the present invention, along a third direction perpendicular to the first and second directions respectively, the extension portion 1132 is located on opposite sides of the support portion 1131, and the side magnetic portion 12 is spaced apart from the extension portion 1132 to define a portion of the magnetic gap 1a. Specifically, the second direction and the third direction can be located in the same horizontal plane. For example, the second direction can be the horizontal x-direction, the third direction can be the horizontal y-direction, and the first direction can be the vertical z-direction. There can be two extension portions 1132, which can be located on both sides of the third direction of the support portion 1131, thereby connecting the support portion 1131 and the magnetic yoke 13 together, resulting in a relatively simple structural design. The side magnetic portion 12 can be spaced apart from the extension portion 1132 to define a portion of the magnetic gap 1a, and the side magnetic portion 12 can also be spaced apart from the first sub-center magnet 111 and the central magnetic plate 113 located at both ends to define another portion of the magnetic gap 1a.

[0097] In some embodiments of the present invention, the projections of the plurality of first sub-center magnets 111 along the first direction are all located inside the edge of the hollow hole 132, thereby ensuring the number of magnetic field lines passing through the hollow hole 132, thereby ensuring the vibration effect of the second vibration system 3.

[0098] Furthermore, along the first direction, multiple first sub-center magnets 111 extend into the hollow hole 132, thereby reducing the distance between the central magnetic part 11 and the drive coil 322, thereby increasing the intensity of the magnetic field lines acting on the drive coil 322, and thus improving the vibration effect of the second vibration system 3.

[0099] The following is for reference. Figure 3 , Figure 4 and Figure 9 A detailed description of a vibrating sound-generating unit 100 according to a specific embodiment of the present invention.

[0100] like Figure 3 , Figure 4 and Figure 9 The vibrating sound-generating unit 100 includes: a magnetic circuit system 1, a first vibration system 2, and a second vibration system 3.

[0101] The first vibration system 2 and the second vibration system 3 are respectively located on opposite sides of the magnetic circuit system 1. The magnetic circuit system 1 includes a magnetic yoke 13 and a central magnetic part 11 and a side magnetic part 12 located on the magnetic yoke 13. The side magnetic part 12 is located outside the central magnetic part 11, and the central magnetic part 11 and the side magnetic part 12 are spaced apart to define a magnetic gap 1a.

[0102] The central magnetic section 11 includes three first sub-central magnets 111 and a central magnetic guide plate 113. The central magnetic guide plate 113 includes a support section 1131 extending along a second direction (horizontal x-direction) and an extension section 1132 extending along a first direction (vertical z-direction). The two ends of the extension section 1132 are connected to the support section 1131 and the main body section 131, respectively. There are two extension sections 1132, located at the two ends of the support section 1131 in a third direction (horizontal y-direction). The three first sub-central magnets 111 are spaced apart along the second direction. The end of each first sub-central magnet 111 away from the second vibration system 3 is connected to the support section 1131. Adjacent first sub-central magnets 111 are spaced apart to form a spacer section 1b. The side magnet section 12 includes a side magnet 121 and a side magnetic guide plate 122 disposed on the side of the side magnet 121 away from the second vibration system 3. The side magnet 121 and the plurality of first sub-center magnets 111 are all magnetized along a first direction, and the magnetization directions between adjacent side magnets 121 and first sub-center magnets 111, as well as between two adjacent first sub-center magnets 111, are opposite. The magnetic yoke 13 includes a body section 131 and a hollow hole 132 disposed in the body section 131. The side magnet 121 is disposed in the body section 131, and the two ends of the extension section 1132 are respectively connected to the support section 1131 and the body section 131. Along the first direction, the plurality of first sub-center magnets 111 are opposite to the hollow hole 132.

[0103] The first vibration system 2 vibrates along a first direction. The first vibration system 2 includes a diaphragm assembly 21 and a voice coil 22. The diaphragm assembly 21 includes a diaphragm 211 and a dome 212 disposed on the diaphragm 211. One end of the voice coil 22 is fixed to the dome 212, and the other end of the voice coil 22 is inserted into the magnetic gap 1a. The side magnetic plate 122 includes a horizontally extending first plate 1221 and a vertically extending second plate 1222. The first plate 1221 is disposed on the side of the side magnet 121 away from the second vibration system 3. One end of the second plate 1222 is connected to the first plate 1221, and the other end of the second plate 1222 extends along the first direction. Both ends of the diaphragm 211 are fixed to the second plate 1222. The second plate 1222 can be integrally injection molded with the plastic frame 5 of the vibrating sound-generating unit 100, that is, the second plate 1222 can be used as part of the support 4, and the edge of the diaphragm 211 can be fixed to the support 4. The diaphragm 211 has a folded ring portion that extends along the first direction toward the side magnet portion 12, and the first plate 1221 has a recessed portion 122a that corresponds to the folded ring portion.

[0104] The second vibration system 3 vibrates along a second direction. The second vibration system 3 includes an elastic connector 31 and an oscillator assembly 32. The main body 131 of the magnetic yoke 13 forms a square structure. Support frames 133 are provided at a pair of opposite corners of the main body 131. The support frames 133 are plate-shaped structures. One end of the support frame 133 is connected to the main body 131, and the other end extends along the first direction away from the main body 131. Both ends of the elastic connector 31 are connected to the oscillator assembly 32 and the support frame 133, respectively. Thus, the magnetic circuit system 1 can suspend the oscillator assembly 32. The oscillator assembly 32 includes... The counterweight 321 and two drive coils 322 disposed on the counterweight 321, each drive coil 322 having two long sides 3221 and two short sides 3222 disposed opposite to each other. The two short sides 3222 are disposed on both sides of the length direction of the long side 3221, and the two ends of each short side 3222 are respectively connected to the long side 3221. Thus, the two short sides 3222 and the two long sides 3221 cooperate to define the central hole. Along the first direction, each central hole is disposed in one-to-one correspondence with each spacer 1b, and the two long sides 3221 are respectively disposed opposite to the two adjacent first sub-central magnets 111.

[0105] like Figure 1 and Figure 8 As shown, in some embodiments of the present invention, the side magnetic part 12 may include a side magnet 121, and the central magnetic part 11 may also include a second sub-central magnet 112 disposed on both sides of a third direction of a plurality of first sub-central magnets 111. The third direction is perpendicular to the first direction and the second direction, respectively. The side magnet 121, the first sub-central magnet 111 and the second sub-central magnet 112 are all magnetized along the first direction. Along the second direction, the magnetization directions between adjacent side magnets 121 and the first sub-central magnets 111 and between two adjacent first sub-central magnets 111 are opposite. Along the third direction, the magnetization directions between adjacent side magnets 121 and the second sub-central magnets 112 are opposite.

[0106] Specifically, the second direction and the third direction can be located in the same horizontal plane. For example, the second direction can be the horizontal x-direction, the third direction can be the horizontal y-direction, and the first direction can be the vertical z-direction. The central magnetic part 11 includes a plurality of first sub-central magnets 111 spaced apart along the second direction and second sub-central magnets 112 spaced apart along the third direction. The side magnets 121, the first sub-central magnets 111, and the second sub-central magnets 112 are all magnetized along the first direction, for example, the vertical z-direction. Along the second direction, adjacent side magnets 121 and first sub-central magnets 111, as well as one of two adjacent first sub-central magnets 111, are magnetized in a downward direction, while adjacent side magnets 121 and first sub-central magnets 111, as well as the other of two adjacent first sub-central magnets 111, are magnetized in a downward direction. Along the third direction, one of the adjacent side magnets 121 and the second sub-center magnet 112 is magnetized in a downward direction, and the other of the adjacent side magnets 121 and the second sub-center magnet 112 is magnetized in a downward direction.

[0107] Therefore, through the above settings, the voice coil 22 can fully cut the magnetic field lines in the magnetic gap 1a formed between the side magnetic part 12 and the central magnetic part 11, and the drive coil 322 can fully cut the magnetic field lines formed by the two adjacent first sub-central magnets 111, thus ensuring the sound generation and vibration effect of the vibrating sound-generating unit 100.

[0108] In some embodiments of the present invention, the central magnetic part 11 further includes a central magnetic guide plate 113. The sides of the plurality of first sub-central magnets 111 and second sub-central magnets 112 away from the second vibration system 3 are all connected to the central magnetic guide plate 113. The magnetic guide yoke 13 includes a body part 131 and a hollow hole 132 provided in the body part 131. The side magnets 121 and the second sub-central magnets 112 are both provided in the body part 131. Along the first direction, the hollow hole 132 is at least partially opposite to the drive coil 322.

[0109] Specifically, the central magnetic plate 113 not only concentrates magnetic field lines but also assembles multiple first sub-central magnets 111 and second sub-central magnets 112 together. The side magnets 121 and second sub-central magnets 112 can both be fixed to the body 131 of the magnetic yoke 13. This allows the magnetic yoke 13 to support the central magnetic part 11 and the side magnetic part 12, while also concentrating the magnetism, ensuring the magnetic field strength of the corresponding first vibration system 2. The body 131 of the magnetic yoke 13 has a perforated hole 132, which can be opposite to a portion of the drive coil 322 or the entire drive coil 322. This ensures that the drive coil 322 can smoothly cut the magnetic field lines, thereby ensuring the vibration effect of the second vibration system 3.

[0110] In some embodiments of the present invention, the projections of the plurality of first sub-center magnets 111 along the first direction can all be located inside the edge of the hollow hole 132, thereby ensuring the number of magnetic field lines passing through the hollow hole 132, and thus ensuring the vibration effect of the second vibration system 3.

[0111] Furthermore, along the first direction, multiple first sub-center magnets 111 extend into the hollow hole 132, thereby reducing the distance between the central magnetic part 11 and the drive coil 322, thereby increasing the intensity of the magnetic field lines acting on the drive coil 322, and thus improving the vibration effect of the second vibration system 3.

[0112] Furthermore, there can be multiple drive coils 322 and one cutout hole 132. The cutout hole 132 is correspondingly set with multiple drive coils 322, which simplifies the processing procedure of the cutout hole 132 and improves processing efficiency. Of course, there can also be multiple drive coils 322 and multiple cutout holes 132, with multiple cutout holes 132 corresponding one-to-one with multiple drive coils 322. This can relatively reduce the opening area of ​​the magnetic yoke 13, thereby improving the magnetic focusing effect and structural strength of the magnetic yoke 13.

[0113] The following is for reference. Figure 1 , Figure 4 and Figure 8 A detailed description of a vibrating sound-generating unit 100 according to a specific embodiment of the present invention.

[0114] like Figure 1 , Figure 4 and Figure 8 As shown, the vibrating sound-generating unit 100 includes: a magnetic circuit system 1, a first vibration system 2, and a second vibration system 3.

[0115] The first vibration system 2 and the second vibration system 3 are respectively located on opposite sides of the magnetic circuit system 1. The magnetic circuit system 1 includes a magnetic yoke 13 and a central magnetic part 11 and a side magnetic part 12 located on the magnetic yoke 13. The side magnetic part 12 is located outside the central magnetic part 11, and the central magnetic part 11 and the side magnetic part 12 are spaced apart to define a magnetic gap 1a.

[0116] The central magnetic section 11 includes three first sub-central magnets 111, two second sub-central magnets 112, and a central magnetic guide plate 113. The three first sub-central magnets 111 are spaced apart along a second direction (horizontal x-direction), and the two second sub-central magnets 112 are located on either side of the three first sub-central magnets 111 in a third direction (horizontal y-direction). The end of each first sub-central magnet 111 and each second sub-central magnet 112 away from the second vibration system 3 is connected to the central magnetic guide plate 113. Adjacent first sub-central magnets 111 are spaced apart to form a gap 1b. The side magnetic section 12 includes side magnets 121 and a side magnetic guide plate 122 located on the side of the side magnets 121 away from the second vibration system 3. The magnetic yoke 13 includes a body section 131 and a hollow hole 132 located in the body section 131. The side magnets 121 and the second sub-central magnets 112 are both located in the body section 131. Along a first direction (vertical z-direction), the plurality of first sub-central magnets 111 are opposite to the hollow hole 132. Among them, the side magnet 121, the first sub-center magnet 111 and the second sub-center magnet 112 are all magnetized along the first direction. Along the second direction, the magnetization directions between adjacent side magnets 121 and the first sub-center magnet 111, as well as between two adjacent first sub-center magnets 111, are opposite. Along the third direction, the magnetization directions between adjacent side magnets 121 and the second sub-center magnet 112 are opposite.

[0117] The adjacent first sub-central magnets 111 and the adjacent first sub-central magnet 111 and second sub-central magnet 112 are arranged in close contact. It is understood that although the adjacent first sub-central magnets 111 and the adjacent first sub-central magnet 111 and second sub-central magnet 112 are arranged in close contact, due to assembly errors and material errors, there may be a small gap between the adjacent first sub-central magnets 111 and the adjacent first sub-central magnet 112. For example, along the second direction, the gap width between the adjacent first sub-central magnets 111 can be 0.05mm ± 0.02mm; along the third direction, the gap width between the adjacent first sub-central magnets 111 and second sub-central magnet 112 can be 0.05mm ± 0.02mm.

[0118] Specifically, when assembling the central magnetic part 11, the two first sub-central magnets 111 located at both ends of the second direction and the two second sub-central magnets 112 located at both ends of the third direction can be fixed firstly. Then, the first sub-central magnet 111 located in the middle position is inserted into the assembly space defined by the two first sub-central magnets 111 and the two second sub-central magnets 112. Thus, when adjacent first sub-central magnets 111 and adjacent first sub-central magnets 111 and second sub-central magnets 112 are all abutted, there is no need to precisely position the first sub-central magnet 111 in the middle position, simplifying the assembly process of the central magnetic part 11 and improving assembly efficiency. Furthermore, since all five magnets are attached in pairs, during the assembly of the later-installed first sub-center magnet 111, the glue used for fixing will overflow to the periphery of the magnet, and then overflow into the tiny gaps between the two adjacent first sub-center magnets 111 and the adjacent first sub-center magnets 111 and second sub-center magnets 112. This will bond the two adjacent first sub-center magnets 111 and the adjacent first sub-center magnets 111 and second sub-center magnets 112 together. Thus, the three first sub-center magnets 111 and the two second sub-center magnets 112 can be formed into a bonded whole, which greatly improves the structural strength of the central magnetic part 11. When the product is dropped or collided, the first sub-center magnets 111 and second sub-center magnets 112 are less likely to loosen or fall off.

[0119] The first vibration system 2 vibrates along a first direction. The first vibration system 2 includes a diaphragm assembly 21 and a voice coil 22. The diaphragm assembly 21 includes a diaphragm 211 and a dome 212 disposed on the diaphragm 211. One end of the voice coil 22 is fixed to the dome 212, and the other end of the voice coil 22 is inserted into the magnetic gap 1a. The side magnetic plate 122 includes a horizontally extending first plate 1221 and a vertically extending second plate 1222. The first plate 1221 is disposed on the side of the side magnet 121 away from the second vibration system 3. One end of the second plate 1222 is connected to the first plate 1221, and the other end of the second plate 1222 extends along the first direction. Both ends of the diaphragm 211 are fixed to the second plate 1222. The second plate 1222 can be integrally injection molded with the plastic frame 5 of the vibrating sound-generating unit 100, that is, the second plate 1222 can be used as part of the support 4, and the edge of the diaphragm 211 can be fixed to the support 4. The diaphragm 211 has a folded ring portion that extends along the first direction toward the side magnet portion 12, and the first plate 1221 has a recessed portion 122a that corresponds to the folded ring portion.

[0120] The second vibration system 3 vibrates along a second direction. The second vibration system 3 includes an elastic connector 31 and an oscillator assembly 32. The main body 131 of the magnetic yoke 13 forms a square structure. Support frames 133 are provided at a pair of opposite corners of the main body 131. The support frames 133 are plate-shaped structures. One end of the support frame 133 is connected to the main body 131, and the other end extends along the first direction away from the main body 131. Both ends of the elastic connector 31 are connected to the oscillator assembly 32 and the support frame 133, respectively. Thus, the magnetic circuit system 1 can suspend the oscillator assembly 32. The oscillator assembly 32 includes... The counterweight 321 and two drive coils 322 disposed on the counterweight 321, each drive coil 322 having two long sides 3221 and two short sides 3222 disposed opposite to each other. The two short sides 3222 are disposed on both sides of the length direction of the long side 3221, and the two ends of each short side 3222 are respectively connected to the long side 3221. Thus, the two short sides 3222 and the two long sides 3221 cooperate to define the central hole. Along the first direction, each central hole is disposed in one-to-one correspondence with each spacer 1b, and the two long sides 3221 are respectively disposed opposite to the two adjacent first sub-central magnets 111.

[0121] like Figures 1-3 As shown, according to some embodiments of the present invention, the counterweight 321 has a mounting groove 321a on the side near the magnetic circuit system 1, and the drive coil 322 is embedded in the mounting groove 321a, thereby making the structure of the oscillator assembly 32 more compact. Optionally, a fixing adhesive can be provided in the mounting groove 321a, and the drive coil 322 can be fixed in the mounting groove 321a by the fixing adhesive. It should be noted that the structural design of the counterweight 321 is not limited to this. For example, the counterweight 321 may not have a mounting groove 321a, and the drive coil 322 may be bonded to the outer surface of the counterweight 321.

[0122] like Figure 6 As shown, according to some embodiments of the present invention, there can be multiple magnetic gaps 1a, which are coaxially arranged and distributed sequentially from the inside to the outside. There can also be multiple voice coils 22, which are arranged one-to-one with the multiple magnetic gaps 1a. Thus, the first vibration system 2 can be formed as a structure in which multiple voice coils 22 synchronously drive the diaphragm assembly 21, thereby improving the sound sensitivity and loudness of the first vibration system 2 and improving the sound production effect of the vibrating sound generator 100.

[0123] exist Figure 6In the specific embodiment shown, the magnetic circuit system 1 includes a central magnetic part 11 and a side magnetic part 12. The central magnetic part 11 includes a first sub-central magnetic part 11a and a second sub-central magnetic part 11b. The second sub-central magnetic part 11b is disposed outside the first sub-central magnetic part 11a and is spaced apart from the first sub-central magnetic part 11a to form a first sub-magnetic gap 1c. The side magnetic part 12 is disposed outside the second sub-central magnetic part 11b and is spaced apart from the second sub-central magnetic part 11b to form a second sub-magnetic gap 1d. The first vibration system 2 includes a diaphragm assembly 21, a first sub-voice coil 22a and a second sub-voice coil 22b. One end of the first sub-voice coil 22a and the second sub-voice coil 22b are respectively connected to the diaphragm assembly 21. The other end of the first sub-voice coil 22a is inserted into the first sub-magnetic gap 1c, and the other end of the second sub-voice coil 22b is inserted into the second sub-magnetic gap 1d. Therefore, the first vibration system 2 can be configured as a structure in which two voice coils 22 synchronously drive a diaphragm assembly 21, thereby improving the magnetic field utilization rate of the magnetic circuit system 1 and thus improving the sound generation sensitivity of the vibrating sound-generating unit 100. The drive coil 322 has two connecting edges arranged opposite to each other. Along the first direction, the two connecting edges are respectively arranged opposite to the first sub-central magnetic part 11a and the second sub-central magnetic part 11b. Of course, the two connecting edges can also be arranged opposite to the second sub-central magnetic part 11b and the side magnetic part 12 along the first direction, respectively.

[0124] It should be noted that in the above-mentioned structure in which multiple voice coils 22 synchronously drive the diaphragm assembly 21, the number of voice coils 22 can be selected according to actual usage requirements, and the present invention does not limit this.

[0125] In some embodiments of the present invention, the first sub-central magnetic part 11a may include a first central magnet, the second sub-central magnetic part 11b may include a second central magnet disposed around the first central magnet, and the side magnetic part 12 may include a side magnet 121 disposed around the second sub-central magnetic part 11b. The first central magnet, the second central magnet, and the side magnet are all magnetized along a first direction (vertical z-direction) and along a second direction (horizontal x-direction). The magnetization directions between adjacent first central magnets and second central magnets, and between adjacent second central magnets and side magnets 121, are opposite. Thus, through the above arrangement, the first sub-voice coil 22a and the second sub-voice coil 22b can fully cut the magnetic field lines within the first sub-magnetic gap 1c and the second sub-magnetic gap 1d, and the drive coil 322 can also fully cut the magnetic field lines between adjacent first sub-central magnetic parts 11a and second sub-central magnetic parts 11b, thus ensuring the sound generation and vibration effect of the vibrating sound-generating unit 100.

[0126] Optionally, the first central magnet can be set as one piece, the second central magnet includes four pieces and is arranged around the first central magnet, and the side magnet 121 also includes four pieces and is arranged outside the second sub-central magnet part 11b. The four second central magnets and the four side magnets 121 are arranged one-to-one.

[0127] In some embodiments of the present invention, the second central magnets at both ends of the first central magnet in a second direction (e.g., the horizontal x-direction) are the first magnets, and the second central magnets at both ends of the first central magnet in a third direction (e.g., the horizontal y-direction) are the second magnets. The third direction is perpendicular to the first direction (e.g., the vertical z-direction) and the second direction, respectively, and the volume of the first magnet is larger than the volume of the second magnet. It can be understood that since the long side 3221 of the drive coil 322 extends along the third direction, the magnetic field acting on the drive coil 322 mainly comes from the first central magnet and the second central magnets (first magnets) located on both sides of the first central magnet in the second direction. By setting the volume of the first magnet to be larger than the volume of the second magnet, the magnetic field strength acting on the drive coil 322 can be increased, thereby improving the vibration sensation of the vibrating sound-generating unit 100.

[0128] Furthermore, the second sub-central magnet 11b also includes a second central magnetic guide plate disposed on the side of the second central magnet near the diaphragm assembly 211. The second central magnetic guide plate forms a closed ring structure, which facilitates the centralized assembly of the first magnet and the second magnet and improves assembly efficiency.

[0129] In some embodiments of the present invention, the magnetic yoke 13 may include a body portion 131 and a hollow hole 132 disposed on the body portion 131. Along a first direction (e.g., the vertical z-direction), the hollow hole 132 is at least partially opposite to the drive coil 322. The side magnetic portion 12 and the second sub-central magnetic portion 11b are both disposed on the body portion 131. The first sub-central magnetic portion 11a includes a first central magnet and a first central magnetic guide plate. The first central magnetic guide plate may include a support plate and an extension plate disposed on the outside of the support plate. At least a portion of the extension plate extends along the first direction. Both ends of the extension plate are connected to the support plate and the body portion 131, respectively. The support plate is opposite to the hollow hole 132. The first central magnet is disposed on the support plate.

[0130] Specifically, the magnetic yoke 13 can be used to support the first sub-central magnetic part 11a, the second sub-central magnetic part 11b, and the side magnetic part 12. The second sub-central magnetic part 11b and the side magnetic part 12 are located in the body part 131 of the magnetic yoke 13. Since the extension plate of the first central magnetic plate is connected to the body part 131, the magnetic yoke 13 supports the first sub-central magnetic part 11a through the extension plate. It is understood that since the magnetic yoke 13 has a perforated hole 132 along the first direction opposite to the drive coil 322, the perforated hole 132 can be opposite to a portion of the drive coil 322 or the entire drive coil 322, thereby ensuring that the drive coil 322 can smoothly cut the magnetic field lines, thus ensuring the vibration effect of the second vibration system 3. Optionally, the support plate can extend horizontally, the first central magnet is located on the side of the support plate near the perforated hole 132, and the extension plate can extend vertically, with both ends connected to the support plate and the body part 131 respectively.

[0131] In some embodiments of the present invention, along a third direction perpendicular to the first and second directions, extension plates are located on opposite sides of the support plate, and the second sub-central magnet 11b is spaced apart from the support plate to define a portion of the first sub-magnetic gap 1c. Specifically, the second direction and the third direction can be located in the same horizontal plane. For example, the first direction can be the vertical y-direction, the second direction can be the horizontal x-direction, and the third direction can be the horizontal y-direction. There can be two extension plates, which can be located on both sides of the third direction of the support plate, thereby connecting the support plate and the magnetic yoke 13 together, resulting in a relatively simple structural design. The second sub-central magnet 11b can be spaced apart from the support plate to define a portion of the first sub-magnetic gap 1c, and the second sub-central magnet 11b can also be spaced apart from both sides of the first central magnet in the second direction to define another portion of the first sub-magnetic gap 1c.

[0132] In some embodiments of the present invention, the second sub-central magnet 11b may include a second central magnet disposed on the outer periphery of the first central magnet. The second central magnets on both sides of the third direction (e.g., the horizontal y direction) of the first sub-central magnet 11a are disposed on the body part 131. The second central magnets on both sides of the second direction (e.g., the horizontal x direction) of the first sub-central magnet 11a are opposite to the hollow hole 132 along the first direction. This can increase the area of ​​the second central magnet disposed opposite to the hollow hole 132, thereby ensuring the number of magnetic field lines acting on the drive coil 322 and ensuring the vibration effect of the second vibration system 3.

[0133] In some embodiments of the present invention, the second sub-central magnet 11b may include a second central magnetic guide plate disposed on the side of the second central magnet away from the main body 131. The second central magnetic guide plate is formed into a ring structure and sleeved on the outside of the support plate. Thus, the second central magnets located on the outer periphery of the first central magnet are all connected to the side of the second central magnetic guide plate away from the diaphragm assembly 21. The second central magnets located on the third direction sides of the first sub-central magnet 11a are disposed on the main body 131. The bottom of the second central magnets located on the second direction sides of the first sub-central magnet 11a are opposite to the hollow hole 132 along the first direction. Through the above arrangement, the second central magnetic guide plate can suspend the second central magnets located on the second direction sides of the first sub-central magnet 11a. The structural design is simple and ingenious. It can not only meet the magnetic field force requirements of the first sub-voice coil 22a, but also ensure the number of magnetic field lines acting on the drive coil 322, and ensure the vibration effect of the second vibration system 3.

[0134] In some embodiments of the present invention, the projections of the first central magnet and the second central magnet located on both sides of the first sub-central magnetic part 11a in the second direction (e.g., the horizontal x direction) along the first direction (e.g., the vertical z direction) are located inside the edge of the hollow hole 132, thereby ensuring the number of magnetic field lines passing through the hollow hole 132, and thus ensuring the vibration effect of the second vibration system 3.

[0135] Furthermore, along the first direction, the first central magnet and the second central magnets located on both sides of the first sub-central magnet 11a in the second direction both extend into the hollow hole 132, thereby reducing the distance between the first sub-central magnet 11a and the second sub-central magnet 11b and the drive coil 322, thereby increasing the magnetic field strength acting on the drive coil 322, and thus improving the vibration effect of the second vibration system 3.

[0136] In one specific embodiment of the present invention, the first central magnetic guide plate and the magnetic guide yoke 13 are formed as an integral structure, thereby simplifying the structural design of the magnetic circuit system 1 and the assembly process. For example, the first central magnetic guide plate and the magnetic guide yoke 13 can be formed as an integral stamped part. Of course, it is understood that the first central magnetic guide plate and the magnetic guide yoke 13 can also be formed as separate parts, and the extension plate of the first central magnetic guide plate and the main body 131 of the magnetic guide yoke 13 can be assembled together by laser welding.

[0137] like Figure 14As shown, the vibration sound-generating module 200 according to the second aspect embodiment of the present invention includes a housing 201 and a vibration sound-generating unit 100 according to the above embodiment of the present invention. The vibration sound-generating unit 100 is disposed inside the housing 201. The first end of the fixing component is connected to the inner wall of the housing 201, thereby fixing the vibration sound-generating unit 100 in the housing 201. The fixing component can suspend the oscillator assembly 32 in the second vibration system 3 inside the housing 201.

[0138] It is understood that in some embodiments, when the diaphragm 211 of the first vibration system 2 is fixed to the first end face of the fixing component, the diaphragm 211 is fixed to the first end face of the fixing component before being connected to the inner wall of the housing 201. Alternatively, in some other embodiments, the diaphragm 211 and the front cover are sequentially connected to the first end face of the fixing component, with the front cover serving as a protective component. In this case, the diaphragm 211 and the front cover are fixed to the first end of the fixing component before being connected to the inner wall of the housing 201.

[0139] Normally, the vibrating sound-generating unit is located inside the housing 201 of the vibrating sound-generating module 200, dividing the internal space of the housing 201 into a front sound cavity and a rear sound cavity. The front sound cavity is connected to the sound outlet on the housing 201 to export the sound, and the rear sound cavity is connected to the space on the back of the diaphragm 211 to adjust the low-frequency performance of the product.

[0140] According to the second aspect of the present invention, the vibration sound-generating module 200, by setting the above-mentioned vibration sound-generating unit 100, the first vibration system 2 and the second vibration system 3 of the vibration sound-generating unit 100 share a set of magnetic circuit system 1, and the structure is relatively compact, thereby increasing the acoustic cavity volume of the vibration sound-generating module 200; moreover, the elastic connector 31 of the above-mentioned vibration sound-generating unit 100 is connected to the fixing component and the vibrator component 32 respectively, thereby realizing modular and standardized design, thereby improving the assembly efficiency of the vibration sound-generating module 200.

[0141] An electronic device according to a third aspect embodiment of the present invention includes a vibration-generating sound module 200 according to the above embodiments of the present invention. Optionally, the electronic device may be a mobile phone, a PAD, a laptop computer, etc.

[0142] According to the third aspect of the present invention, the electronic device, by providing the above-mentioned vibration sound-generating module 200, has a compact structural design, occupies little assembly space, and has good sound generation and vibration effects, thereby meeting the requirements for lightweight and thin design of electronic devices, and also enabling electronic devices to have both good sound quality and vibration feedback effects, thereby enhancing the product market competitiveness of electronic devices.

Claims

1. A vibrating sound-generating unit, characterized in that, include: A fixing assembly includes a bracket and a magnetic circuit system fixed to the bracket. The magnetic circuit system includes a magnetic yoke and a central magnetic part and a side magnetic part respectively disposed on the magnetic yoke. The side magnetic part is disposed outside the central magnetic part and is spaced apart from the central magnetic part to define a magnetic gap. A first vibration system and a second vibration system are respectively disposed on opposite sides of the fixing assembly and respectively fixed to opposite ends of the fixing assembly. The first vibration system vibrates along a first direction. The first vibration system is fixed to the first end of the fixed component. The first vibration system includes a diaphragm assembly and a voice coil. One end of the voice coil is connected to the diaphragm assembly, and the other end of the voice coil is inserted into the magnetic gap. The second vibration system vibrates along a second direction perpendicular to the first direction. The second vibration system includes an elastic connector and an oscillator assembly. The two ends of the elastic connector are respectively connected to the second ends of the oscillator assembly and the fixed assembly. The oscillator assembly includes a counterweight and a drive coil disposed on the counterweight. The magnetic circuit system is correspondingly arranged with the drive coil to drive the oscillator assembly to vibrate. The central magnetic part includes a plurality of first sub-central magnets spaced apart along the second direction. The magnetization directions of two adjacent first sub-central magnets are opposite. The driving coil has two long sides arranged opposite to each other. Along the first direction, the two long sides are respectively arranged opposite to two adjacent first sub-central magnets. The magnetic yoke includes a body part and a hollow hole provided in the body part. The side magnetic part and the first sub-central magnets located at both ends are both provided in the body part. Along the first direction, the hollow hole is at least partially arranged opposite to the driving coil.

2. The vibrating sound-generating unit according to claim 1, characterized in that, The two ends of the elastic connector are respectively connected to the oscillator assembly and the bracket. The bracket has a mounting portion extending to the second end of the fixing assembly, and the elastic connector is fixedly connected to the mounting portion.

3. The vibrating sound-generating unit according to claim 1, characterized in that, The two ends of the elastic connector are respectively connected to the oscillator assembly and the magnetic circuit system.

4. The vibrating sound-generating unit according to claim 1, characterized in that, The side magnetic part includes a side magnet and a side magnetic guide plate disposed on the side of the side magnet away from the second vibration system. The side magnetic guide plate has a mounting part extending to the second end of the fixing assembly, and the elastic connector is fixedly connected to the mounting part. Alternatively, the elastic connector is fixedly connected to the side of the magnetic circuit system.

5. The vibrating sound-generating unit according to claim 1, characterized in that, The elastic connector is connected to the magnetic yoke.

6. The vibrating sound-generating unit according to claim 5, characterized in that, The magnetic yoke also includes support frames located at both ends of the main body. One end of the elastic connector is connected to the support frame, and the other end of the elastic connector is connected to the counterweight.

7. The vibrating sound-generating unit according to claim 6, characterized in that, The main body is formed into a square structure, and there are two support frames, which are respectively located at opposite corners of the main body.

8. The vibrating sound-generating unit according to claim 7, characterized in that, The elastic connector has a first elastic connecting portion extending along the second direction and a second elastic connecting portion extending along a third direction, the third direction being perpendicular to the first direction and the second direction respectively. One of the first elastic connecting portion and the second elastic connecting portion is connected to the support frame, and the other of the first elastic connecting portion and the second elastic connecting portion is connected to the counterweight.

9. The vibrating sound-generating unit according to claim 1, characterized in that, There are at least three first sub-center magnets, and two adjacent first sub-center magnets are spaced apart to form a spacer. The number of drive coils is the same as the number of spacers, and the center hole of each drive coil corresponds to one of the spacers.

10. The vibrating sound-generating unit according to claim 1 or 9, characterized in that, Along the second direction, the gap between two adjacent first sub-center magnets is close to zero or equal to zero.

11. The vibrating sound-generating unit according to claim 1, characterized in that, The side magnet section includes a side magnet, and the side magnet and a plurality of first sub-center magnets are all magnetized along the first direction, and the magnetization directions between adjacent side magnets and first sub-center magnets and between two adjacent first sub-center magnets are opposite.

12. The vibrating sound-generating unit according to claim 1, characterized in that, The central magnetic part also includes a central magnetic guide plate, and the side of the plurality of first sub-central magnets away from the second vibration system is connected to the central magnetic guide plate.

13. The vibrating sound-generating unit according to claim 1, characterized in that, The projections of the other first sub-center magnets between the first sub-center magnets located at both ends along the first direction are all located inside the edge of the hollow hole.

14. The vibrating sound-generating unit according to claim 13, characterized in that, Along the first direction, the other first sub-center magnets located at both ends extend into the hollow hole.

15. The vibrating sound-generating unit according to claim 1, characterized in that, A portion of the first sub-center magnet located at both ends is disposed on the main body, and the other portion of the first sub-center magnet located at both ends is disposed opposite to the hollow hole.

16. A vibration-generating sound module, characterized in that, include: The housing and the vibrating sound-generating unit according to any one of claims 1-15, wherein the vibrating sound-generating unit is disposed within the housing, and the first end of the fixing assembly is connected to the inner wall of the housing.

17. An electronic device, characterized in that, Includes the vibration-generating sound module according to claim 16.

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